A network connection framework for connecting a dartboard to a portable device includes: a cloud server; a communication device communicating with the cloud server via a communication network; a dartboard including a dartboard unit, a sensing unit and a dartboard wireless communication unit which connects the dartboard to the cloud server via wireless signal, the dartboard wireless communication unit serves to receive and transmit the score signal to the could server; and a portable device with a portable device wireless communication device which connects the portable device to the cloud server via wireless signal. When the user registration information is inputted in the portable device, the score corresponding to the score signal will be displayed. Therefore, the dart game can be played by players in different venues, and consequently is not restricted by the number of the players and the size and location of the venue.

A gaming device includes a base, a runway, and a target. The base includes a baseplate and a ramp. The base plate has an upper surface and a leading end. The ramp includes a ramp leg that supports the ramp in an inclined position. The runway has a free end that extends from the leading end of the base plate in a deployed configuration of the gaming device. The target includes a target plate having a target surface that defines a plurality of holes. The target plate is hingedly attached to the base plate such that the base plate is foldable into the target in a transport configuration of the gaming device. In the transport configuration, the upper surface of the base plate opposes the target surface of the target plate with the ramp disposed between the upper surface and the target surface.

The disclosure refers to a control device and method for an intelligent basketball shooting machine, the device includes a control module, a blue-tooth communication module, a display module, a control switch, a power-supplying module, and a first sensor and a second sensor both for counting; the first sensor is used for catching amount of goals in one basket of basketball shooting machine, and the second sensor used for catching amount of goals in another basket of basketball shooting machine; the first sensor, second sensor, blue-tooth communication module, display module, control switch and power-supplying module are respectively connected with control module; the disclosure makes the basketball shooting machine go on single game or online game, besides, the player can play the shooting game with friends by remote way just through an intelligent terminal, which increases interest and convenience.

Card handling devices may include a card shuffling apparatus and a card output portion having a card buffer area positioned at an interface of the card shuffling apparatus and the card output portion. The card output portion may be configured to move relative to the card shuffling apparatus and alter the orientation of the card buffer area. Card handling devices having a substantially flat card output area may include an interface portion having an at least substantially flat draw surface. The substantially flat card output area may permit playing cards to be drawn from an outlet of the substantially flat card output area in a plurality of at least substantially horizontal directions. Methods of shuffling playing cards may include altering an orientation of a card buffer area and inserting cards into the card buffer area at both a top and a bottom of a group of cards within the card buffer area.

The Archery Target Having a Replaceable Cube Core includes a replaceable cube core, a target frame, and a support base. The target frame houses the replaceable cube core at the center of the target frame. The support base is attached to the target frame and the replaceable cube core abuts the support base. The replaceable cube core provides a visual target display for archers to aim and shoot. The support base ensures that the cube core is firmly held within the confines of the target frame and the support base to prevent the replaceable cube core from shifting or moving under impact from the arrows. The replaceable cube core is formed as a cube having six (6) useable target surfaces. Each target surface provides a consistent penetration depth on each surface for predictable results, regardless of the face that is used for the target surface.

Disclosed is a dart game apparatus according to an embodiment of the present invention in order to implement the aforementioned object. The dart game apparatus includes: a dart target having a plurality of score areas; a sensing module configured to sense an electrical signal changed as a dart pin hits the dart target; a controller configured to control an overall operation of the dart game apparatus; and a camera module configured to include a plurality of camera units, wherein the camera module includes a first camera unit configured to photograph a throw line which is a location where a player throws a dart and a whole body of the player, a second camera unit configured to photograph at least a part of a body for identifying the player, a third camera unit configured to photograph the entirety of the dart target, and a fourth camera unit configured to photograph at least a partial area in an area formed between the throw line and the dart game apparatus in order to photograph a blind zone which is not photographed by the first camera unit, the second camera unit, and the third camera unit.

An automated playing card, shuffling and dealing device in turn shuffles and in turn deals playing cards of two playing card sets, includes two card slot assemblies each disposed with a shuffled card box and a dealt card box. A control unit controls a dealing element to align with the playing card set in the shuffled card box of the card slot assembly at a card drawing position, sequentially draw the cards in the playing card set, and move the uncovered cards to the corresponding dealt card box. Meanwhile, the control unit controls a shuffling machine to align with the playing card set in the dealt card box of the card slot assembly at a card shuffling position. After the dealing process is complete, the control unit exchanges the positions of two card slot assemblies. Accordingly, shuffling and dealing in turn are completed in an uninterrupted and automated manner.

The invention relates to a device for cooling hot gases generated by an internal arc in high voltage metal-enclosed switchgear and controlgear or prefabricated high voltage/low voltage stations. This device comprises a metal foam cooling filter having a honeycomb structure.

The present invention mainly provides a novel microchannel structure comprising a plurality of first fluid-guiding channels, a plurality of micro fluid-guiding channels and a plurality of second fluid-guiding channels. Particularly, the first fluid-guiding channel has an arc-shaped fluid-guiding end corner communicating with a first channel opening of the micro fluid-guiding channel, and the second fluid-guiding channel has an arc-shaped fluid-guiding start corner communicating with a second channel opening of the micro fluid-guiding channel. Therefore, when a refrigerant fluid flows in the heat sink, the flow speed of the refrigerant fluid would be changed because the cross sectional area of an U-shaped fluid-guiding channel constructed by the arc-shaped fluid-guiding end corner, the micro fluid-guiding channel and the arc-shaped fluid-guiding start corner varies along the flow direction of the refrigerant fluid, such that the heat dissipating ability of the heat sink is enhanced without increasing the power of circulation pump.

A heat-insulating shroud for facilitating temperature control of a heated article includes a flexible cover, made from a heat-insulating material, for covering a surface of the heated article, at least one air inlet defined in a first section of the flexible cover, and at least one air outlet defined in a second section of the flexible cover. In a cooling mode of operation, the flexible cover defines an air channel over the surface of the heated article for channeling an air stream from the air inlet(s) over the surface of the heated article towards the air outlet(s). The channeling of the air stream facilitates cooling the heated article. In a heat-conservation mode of operation, the flexible cover of heat-insulating material insulates the heated article from heat loss. Each air outlet may have a closure that opens during the cooling mode of operation and closes during the heat-conservation mode of operation.

Provided is an air-conditioning device for a vehicle, including: a cooling device configured to cool air passing through a duct; a heater core, which is arranged in the duct on a downstream side of airflow with respect to the cooling device, and is configured to use an engine coolant as a heat source to heat the air; a water valve provided in a coolant circulation system on an upstream side of the heater core; and a controller configured to control those components, in which the controller is configured to decrease an opening amount of the water valve in a predetermined cooling mode. The control is configured to, when the opening amount of the water valve is decreased, decrease a rotational speed of a compressor of the cooling device, and increase a target evaporator temperature of an evaporator of the cooling device, thereby decreasing cooling performance of the cooling device.

A discharge system that includes a flexitank having product stored therein and a discharge port. The discharge port is selectively fluidly connected to a first or second heat exchanger input port. The first heat exchanger has an outlet port that is in selective communication with either a second heat exchanger input port, or a discharge location. The second heat exchanger has an outlet port in selective fluid communication with discharge location. The first heat exchanger transfers heat to product flowing through the first heat exchanger; and the second heat exchanger removes heat from product flowing through the second heat exchanger.

A heat sink adapted to dissipate heat from a heat source includes a heat dissipating unit that includes at least one deformation portion protruding toward the heat source, and a reflective surface formed on the deformation portion and facing the heat source for reflecting radiant heat from the heat source. A case including the heat sink is also disclosed.

A swing structure of a heat dissipating device includes an elongated blade and a magnetic actuation disposed on the blade. The blade has a loading segment and a heat dissipating segment, two opposite end portions of the loading segment are respectively defined as a mounting end portion and a connecting end portion, and two opposite end portions of the heat dissipating segment are respectively defined as a positioning end portion and a free end portion. The connecting end portion is connected to the positioning end portion. A thickness of the loading segment is greater than that of the heat dissipating segment. When the magnetic actuation is driven by a magnetic field to swing the blade, a swing angle of the free end portion of the heat dissipating segment is greater than that of the connecting end portion of the loading segment.

A Rack Information Handling System (RIHS) has a liquid cooling subsystem that provides cooling liquid to liquid cooled (LC) nodes received in chassis-receiving bays of a rack. Leak collection structures are positioned to receive cooling liquid that leaks from the liquid cooling subsystem. Liquid sensors detect a presence of leaked cooling liquid in the leak collection structures. A leak detection subsystem responds to a detected presence of liquid by providing a leak indication. In one or more embodiments, the liquid cooling subsystem has a liquid rail formed by more than one rack interconnections vertically aligned in a rear section of the rack that are connected by modular rail conduits for node-to-node fluid transfer. The leak collection structures include a pipe cover received over at least one modular rail conduit. A liquid cavity of each pipe cover spills over into another lower pipe cover at a rate that can be correlated to severity of the leak.

Disclosed is a heat exchanger including: a heat exchanger body; a gas inlet for introducing exhaust gas into the heat exchanger body; a coolant inlet for introducing a coolant into the heat exchanger body; a gas outlet for discharging the exhaust gas that is cooled by heat exchange with the coolant; and a coolant outlet for discharging the coolant that completes heat exchange with the exhaust gas. In this case, the heat exchanger body includes: a laminated tube core formed by laminating a plurality of gas channels side by side; a housing formed so as to enclose the laminated tube core except for opposite ends thereof; and a wave fin plate integrally provided with a plurality of wave fins and arranged within each of the gas channels, wherein each of the wave fins includes a fixed pitch section, and a variable pitch section.

An integratable movement device for ventilating equipment includes an electric machine such as a motor and a fan wheel connected with the electric machine. The movement device further includes a housing, wherein the electric machine and the fan wheel are installed in an inner lower portion of the housing. An upper portion of the housing integrally forms one or more venting outlets. A plurality of venting outlet units is provided at the venting outlets respectively. A chamber provided between the venting outlets and the fan wheel in the housing defines a venting channel. The housing having the venting outlets and the venting channel, along with the venting outlet units, the electric machine and the fan wheel configure the integratable movement device that is able to be directly assembled into the ventilating equipment.

A heat exchange device includes a housing, a heat exchange module, and a piezoelectric module. Isolated inner and outer circulation chambers are formed in the housing. The heat exchange module in the housing includes a stack of separated plates parallel to each other. An inner channel communicated with the inner circulation chamber and an outer channel communicated with the outer circulation chamber are defined respectively by both sides of one of the plates and the other adjacent plates. The piezoelectric module in the housing includes a piezoelectric chip, and first and second heat exchange sides thermally coupled to the piezoelectric chip. The first heat exchange side is located in the inner circulation chamber and the second heat exchange side is located in the outer circulation chamber, so that heat can be transferred between the inner and outer circulation chambers via the piezoelectric chip.

An adjustable refrigerant distribution device and a heat exchanger having same. The heat exchanger comprises: first and second collecting pipes; a heat exchanger core body; and a refrigerant distribution device, the refrigerant distribution device comprises a first distribution pipe, a first inlet pipe and a first drive assembly. The pipe wall of the first distribution pipe is provided with a first distribution hole. The first distribution pipe is inserted into at least one of the first and the second collecting pipes. The first inlet pipe is located outside at least one collecting pipe and is in communication with the first distribution pipe, and the first drive assembly drives the first distribution pipe to move relative to at least one collecting pipe. The distribution pipe of the refrigerant distribution device and the heat exchanger can translate along the axial direction, thereby adjusting refrigerant distribution so as to satisfy different distribution requirements.

In order to enhance heat reception from a cooling target object by a heat sink to efficiently cool a device, the cooling target object, a cooling device including a heat sink and a fluid path is provided. Further, the heat sink includes a heat receiving face. The fluid path is formed so as to allow a predetermined fluid to pass therethrough. The heat exchange portion includes a first path arranged approximately in parallel to the heat receiving face of the heat sink.

Integrated heat spreaders having electromagnetically-formed features, and semiconductor packages incorporating such integrated heat spreaders, are described. In an example, an integrated heat spreader includes a top plate flattened using an electromagnetic forming process. Methods of manufacturing integrated heat spreaders having electromagnetically-formed features are also described.

Embodiments of the invention provides a decoder for decoding a signal received through a transmission channel in a communication system, said signal carrying information symbols selected from a given alphabet and being associated with a signal vector, said transmission channel being represented by a channel matrix, wherein said decoder comprises: a sub-block division unit (301) configured to divide the received signal vector into a set of sub-vectors in correspondence with a division of a matrix related to said channel matrix;a candidate set estimation unit (305) for recursively determining candidate estimates of sub-blocks of the transmitted signal corresponding to said sub-vectors, each estimate of a given sub-block being determined from at least one candidate estimate of the previously processed sub-blocks,wherein said candidate set estimation unit is configured to determine a set of candidate estimates for at least one sub-block of the transmitted signal by applying at least one iteration of a decoding algorithm using the estimates determined for the previously processed sub-blocks, the number of candidate estimates determined for said sub-block being strictly inferior to the cardinal of the alphabet and superior or equal to two, the decoder further comprising a signal estimation unit (306) for calculating an estimate of the transmitted signal from said candidate estimates determined for said sub-blocks.

Input device adhesive techniques are described. A pressure sensitive key includes a sensor substrate having one or more conductors, a spacer layer, and a flexible contact layer. The spacer layer is disposed proximal to the sensor substrate and has at least one opening. The flexible contact layer is spaced apart from the sensor substrate by the spacer layer and configured to flex through the opening in response to an applied pressure to initiate an input. The flexible contact layer is secured to the spacer layer such that at first edge, the flexible contact layer is secured to the spacer layer at an approximate midpoint of the first edge and is not secured to the spacer along another portion of the first edge and at a second edge, the flexible contact layer is not secured to the spacer layer along an approximate midpoint of the second edge.

A codeset having function-code combinations is provisioned on a controlling device to control functions of an intended target device. Input is provided to the controlling device which designates a function to be controlled on the intended target device. From a plurality of codes that are each associated with the designated function in a database stored in a memory of the controlling device a first code that is determined to be valid for use in controlling the designated function on the intended target device is selected. When the codeset is then provisioned on the controlling device, the provisioned codeset includes as a function-code combination thereof the designated function and the first code.

A semiconductor device configured to perform an A/D conversion of a wide range of signals is provided. A semiconductor device includes: an input voltage detection unit configured to detect an analog input voltage; a reference voltage setting unit configured to set a reference voltage based on the detected input voltage; an amplifier configured to amplify a difference between the input voltage and the reference voltage; an ADC configured to perform an A/D conversion of an amplified signal; and an arithmetic processing unit configured to calculate a digital voltage corresponding to the input voltage based on a result of the A/D conversion and the reference voltage.

An analog to digital converter includes an error integration circuit configured to receive an input charge from a detector and to integrate a difference between the input charge and one or more feedback charge pulses to create an error voltage. A quantizer is in operable communication with the error integration circuit and is responsive to the created error voltage. An accumulator having a mantissa component and a radix component is in operable communication with the quantizer. A charge feedback device in operable communication with the quantizer and the radix component of the accumulator. The charge feedback device is configured to generate the one or more feedback charge pulses proportional to the radix component of the accumulator and an output of the quantizer. Digital focal plane read out integrated circuits including the analog to digital converter are also disclosed.

The present disclosure pertains to systems and methods for monitoring a plurality of analog-to-digital converters. In one embodiment, a plurality of input channels may each be in communication with a different phase of a three-phase electric power delivery system. The input channels may be configured to receive analog signals from the different phases. A composite signal subsystem may be configured to generate a composite signal based on the plurality of input channels. An analog-to-digital converter subsystem may be configured to produce a digitized representation of each of the plurality of input channels and a digitized representation of the composite signal. An analog-to-digital converter monitor subsystem may identify an error in the analog-to-digital conversion based on the digitized representation of the composite signal and the digitized representations of the plurality of input channels.

A semiconductor device having an analog/digital conversion circuit converting an analog signal to a digital signal, includes a holding circuit outputting an analog signal having a value according to a value of an analog signal supplied in a first period; and a prediction circuit generating a first digital signal based on bit position information from a prediction table corresponding to the supplied analog signal.

Method for the production of a coarse-grained ammonium sulphate product by crystallization and installation for carrying out the method from an ammonium sulphate solution in a DTB type crystallizer having an internal suspension circuit and a clarifying zone, from which a clarified partial flow of solution is constantly drawn off into an external circuit, is heated in a heat exchanger to dissolve the solids contained therein and is guided back as a clear solution into the lower region of the crystallizer. A fine crystal suspension flow is drawn off from the clarifying zone as a further partial flow and guided back into the internal circuit of the crystallization stage without any previous dissolution of the solid proportion contained therein.

A method of producing a titanium dioxide pigment is provided. Also provided is a method of improving the processability of titanium dioxide particles without adversely affecting the rheological properties of the titanium dioxide particles.

Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the pyloric portion of the gastrointestinal system and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device in the pyloric portion and a flexible sleeve that extents into the duodenum. The anchor is collapsible for endoscopic delivery and removal.

Pelletizing device and method for pelletizing pelletizing materials having a pelletizing disk inclined to the horizontal and provided rotatable wherein the pelletizing disk is driven via a motor device. The pelletizing disk comprises a bottom and a side wall, the effective height of the side wall being variable. The side wall comprises an inner side wall device and an outer side wall device, the inner side wall device being disposed height-adjustable relative to the outer side wall device.

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An electrical voltage-generating piezoelectric device comprising at least a first blade (1) with a curved portion (10) defining a first arm (11) and a second arm (12) of the blade, the first arm (11) being intended to be fastened to a fixed support, the second arm (12) being substantially flat and having a free end (120) designed to oscillate around its resting position under the effect of mechanical force, at least one piezoelectric element (31) resting upon one of the main surfaces (14) of the second arm (12) of the first blade. The device also includes a second blade (2) identical in structure to the first blade (1), the first arms (11, 21) of the first and second blades (1, 2) being fastened together on all or part of their surfaces and being fixed relative to each other.

An energy harvesting device includes: a first nanoporous electrode and a second nanoporous electrode, each of which is configured to which store electrical charge; a first current collector connected to the first nanoporous electrode and a second current collector connected to the second nanoporous electrode; and an enclosure that contains the first and second nanoporous electrodes and the first and second current collectors and transfers a force applied from the outside to the first nanoporous electrode and the second nanoporous electrode, wherein at least one of the first nanoporous electrode and the second nanoporous electrode comprises an ion conductive polymer.

An elastic wave device including a substrate, an interdigital transducer (IDT) electrode provided on an upper surface of the substrate, a first wiring electrode provided on the upper surface of the substrate and connected to the IDT electrode, a dielectric film that does not cover a first region of the first wiring electrode but covers a second region of the first wiring electrode above the substrate, the first wiring electrode including a cutout in the second region, and a second wiring electrode that covers an upper surface of the first wiring electrode in the first region and an upper surface of the dielectric film in the second region above the substrate.

A resonator is provided that suppresses vibration of a retainer caused by undesired vibration of a vibrating portion and also achieves size reduction. Specifically, the resonator includes a vibrating member that includes a semiconductor layer, a first piezoelectric film formed on the semiconductor layer, and a first upper electrode formed on the first piezoelectric film. Moreover, a retainer is provided to retain the vibrating member such that the vibrating portion can vibrate and one or more coupling members are provided to couple the vibrating member to the retainer. Finally, the resonator includes a vibration suppressing member that includes a second piezoelectric film formed on the retainer and a second upper electrode formed on the second piezoelectric film.

An acoustic resonator structure comprises: a substrate having a cavity, which has a plurality of sides; a first electrode disposed over the cavity; a piezoelectric layer disposed over a portion of the first electrode and extending over at least one of the sides; and a second electrode disposed over the piezoelectric layer, an overlap of the first electrode, the piezoelectric layer and the second electrode forming an active area of the FBAR. The active area of the FBAR is completely suspended over the cavity.

In a method of manufacturing a piezoelectric device in which a piezoelectric thin film on which functional conductors are formed is fixed to a support substrate by a fixing layer, an alignment mark is formed on one main surface of a light-transmitting piezoelectric substrate. A sacrificial layer is formed on a main surface of the piezoelectric substrate with reference to the alignment mark and the fixing layer is formed so as to cover the sacrificial layer and is bonded to the support substrate. The piezoelectric thin film is formed by being separated from the piezoelectric substrate and the functional conductors are formed on the surface of the piezoelectric thin film with reference to the alignment mark. The piezoelectric device is able to be manufactured while positions of formation regions of conductors are adjusted efficiently.

A resonator is provided that suppresses frequency variations with etching without decreasing the strength of vibration arms. The resonator includes a base portion, a first vibration portion extending from the base portion in a first direction and having a first width, and a second vibration portion extending from the base portion in the first direction with a first gap between the first and second vibration portions and having the first width. The first and second vibration portions perform out-of-plane bending vibration with opposite phases at a predetermined frequency. The predetermined frequency varies in accordance with the first width and the first gap. The ratio of the first gap to the first width is within a range that causes an absolute value of rates of variations in the predetermined frequency with respect to variations in the first width and in the first gap to be not more than about 100 ppm.

[Object] To provide an electrostatic device capable of improving device characteristics. [Solving Means] An electrostatic device according to an embodiment of the present technology includes an electrically conductive base material, a first conductor layer, a second conductor layer, and a bonding layer. The first conductor layer includes a first electrode portion and a first base portion and is connected to a signal line. The first base portion supports the first electrode portion and is disposed on the base material. The second conductor layer includes a second electrode portion and a second base portion and is connected to a reference potential. The second electrode portion is opposed to the first electrode portion in a first axis direction and configured to be movable relative to the first electrode portion in the first axis direction. The second base portion supports the second electrode portion and is disposed on the base material. The bonding layer is disposed between the base material and the first and second base portions and includes a plurality of first bonding portions that partially support at least the first base portion.

A system and method provides a piezoelectric stack arrangement for reduced driving voltage while maintaining a driving level for active piezoelectric materials. A stack arrangement of d36 shear mode single crystals of both air X-cut and Y-cut ±1:45° (±20°) arrangement are bonded with discrete conductive pillars to form a shear crystal stack. The bonding area between the neighboring crystal parts is minimized. The bonding pillars are positioned at less than a total surface are of the single crystal forming the stack. The stack fabrication is facilitated with a precision assembly system, where crystal parts are placed to desired locations on an assembly fixture for alignment following the preset operation steps. With the reduced clamping effect from bonding due to lower surface coverage of the discrete conductive pillars, such a piezoelectric d36 shear crystal stack exhibits a reduced driving voltage while maintaining a driving level and substantial and surprisingly improved performance.

The present invention relates to a zinc oxide-based piezoelectric device, utilisable both as a sensor and as an actuator. More in particular, the present invention relates to a piezoelectric device (1, 101) comprising at least two carbon fibre crossed yarns (2a, 2b; 102a, 102b), at the intersection of which a zinc oxide layer (3, 103) in nanorod form is arranged, wherein an end (4a, 4b) of each of said yarns (2a, 2b; 102a, 102b) is connected to an operative unit (5).

A displacement sensor having a rectangular shaped elastic member. A piezoelectric element is attached to a first main face of the elastic member. The piezoelectric element has a rectangular-shaped piezoelectric sheet and electrodes on both main faces of the piezoelectric sheet. The piezoelectric sheet is made of poly-L-lactic acid and is at least uniaxially-stretched. The piezoelectric element is attached so that the uniaxial-stretching direction of the piezoelectric sheet is 45° relative to a long-side direction of the elastic member. When the elastic member is bent along the long-side direction, the piezoelectric sheet is stretched along the long-side direction, and the piezoelectric element generates voltage of predetermined level.

A MEMS piezoelectric device includes a monolithic semiconductor body having first and second main surfaces extending parallel to a horizontal plane formed by first and second horizontal axes. A housing cavity is arranged within the monolithic semiconductor body. A membrane is suspended above the housing cavity at the first main surface. A piezoelectric material layer is arranged above a first surface of the membrane with a proof mass coupled to a second surface, opposite to the first surface, along the vertical axis. An electrode arrangement is provided in contact with the piezoelectric material layer. The proof mass causes deformation of the piezoelectric material layer in response to environmental mechanical vibrations. The proof mass is coupled to the membrane by a connection element arranged, in a central position, between the membrane and the proof mass in the direction of the vertical axis.

Apparatus and methods are provided for activity accessory including an energy harvester or generator. In an example, an activity accessory can include a first enclosure and an energy generator enclosed within the first enclosure. The energy generator can include a second enclosure. The energy generator can include a spherical magnet housed within the second enclosure and windings surrounding the second enclosure. Movement of the spherical magnet within the second enclosure can induce charge movement in the windings.

An electric machine of a motor vehicle, in particular of an adjustment drive or of a radiator fan, has a rotor which is mounted so as to be rotatable about a machine axis. The rotor has a number of permanent magnets which are arranged in the radial direction. Each permanent magnet has one side with a strong magnetic flux and one side with a weak magnetic flux in the tangential direction. When the permanent magnets are adjacent in the tangential direction, different sides are directed towards one another.

A vibration motor includes a base portion arranged to extend perpendicularly to a central axis extending in a vertical direction; a shaft having a lower end fixed to the base portion, and arranged to project upward along the central axis; a circuit board; a coil portion; a bearing portion; a rotor holder; a magnet portion; an eccentric weight; a cover portion; and a motor electrode portion electrically connected to the circuit board, and arranged to project downward below a lower surface of the base portion. The entire base portion and the entire circuit board are arranged inside of an outer circumferential edge of a lower end of the cover portion.

A motor drive device is fixed to a wall part of a housing and comprises a duct having an inflow port and an outflow port of air. A main body part of the duct functions as a heat-sink unit which releases heat into the duct. The duct is arranged inside the housing. The inflow port and the outflow port are formed so that outside air can flow through openings formed in the wall part.