Abstract: A motor and stator include first and second laminations arranged adjacently in the axial direction. The laminations include sub-yoke parts and first tooth parts. The sub-yoke parts are spliced through a yoke engaging part to form a substantially annular yoke part. The tooth parts are assembled on an inner edge of the yoke part through a tooth engaging part. A first tooth engaging part and a second tooth engaging part are superposed in the axial direction, the first tooth engaging part being different from the second tooth engaging part. A method of manufacturing a stator for a motor is also disclosed.

Abstract: A stator for a motor includes laminations arranged axially adjacently. A first lamination includes sub-yoke parts and tooth parts. The sub-yoke parts are spliced through a first yoke engaging part to form an annular first yoke part. The first tooth parts are assembled on an inner edge of the first yoke part through a first tooth engaging part. The second lamination includes sub-yoke parts and tooth parts. The sub-yoke parts are spliced through a second yoke engaging part to form an annular second yoke part. The second tooth parts are assembled on an inner edge of the second yoke part through a second tooth engaging part. The first and second tooth engaging parts are superposed in the axial direction. A method of manufacturing a stator for a motor is also described.

Abstract: A motor rotor may include a body having axially extending first and second magnets embedded into the body, the first magnet and the second magnet being arranged at an angle and spaced apart by an axially extending magnetic shielding component. The first magnet includes a first surface away from a central axis of the rotor body and a second surface facing the central axis. The second magnet includes a third surface away from the central axis and a fourth surface facing the central axis, wherein the first surface and the third surface and extension surfaces thereof define a first area of the body part away from the central axis and a second area of the body part close to the central axis.

Abstract: An electric machine operable as a motor or generator includes a stator having a body portion substantially in the shape of a hollow column with an outer wall and an inner wall. The body portion has a plurality of first slots and a plurality of second slots each running through the body portion in a longitudinal direction. The plurality of first slots are distributed in a circumferential direction between the outer wall and the inner wall, and the first slots are circumferentially closed slots. The plurality of second slots are distributed in the circumferential direction between the first slots and the inner wall, and the second slots are circumferentially closed slots and are spaced apart from the first slots.

Abstract: One or a plurality of embodiments of the present application provide a winding method for a stator winding.

Abstract: A stator core for an electric motor may include a main body part formed by a plurality of stacked electromagnetic steel sheets, the main body part being provided with at least a first through hole extending axially with a first pin located in the first through hole. A first end cover is located at a first end of the main body part and connected to a first pin end of the first pin. A second end cover is located at a second end of the main body part and connected to a second pin end of the first pin. The connections of the first end cover and the second end cover to the first pin generate tensile stresses in the main body part to reduce core losses.

Abstract: A heat dissipation simulator of a component on a printed circuit board (PCB) includes a simulation board and a simulated heat source. The simulation board includes an iron layer and a plastic layer. The simulated heat source includes a simulation chip, a thermal, and a heat sink. The simulation chip, the thermal piece, and the heat sink are mounted on the simulation board in that order. The heat dissipation simulator replaces a sample of the PCB with the component for simulating working states of the component on the PCB.

Abstract: A fan device includes a board defining an opening and a fan assembly pivotably received in the opening. The fan assembly includes a fan and a frame receiving the fan. The frame includes a top wall, a bottom wall, and two sidewalls. A front plate extends down and diagonally forward from a front side of the bottom wall. A resilient limiting member is formed on one of the sidewalls. When a bottom of the fan assembly is pivoted rearward to make the fan assembly slanting relative to the board, the front plate is abutted a front side of the board, and the limiting member is abutted a rear side of the board.

Abstract: A supporting bracket includes two opposite sidewalls, a first end wall connected between front ends of the sidewalls, a second end wall connected between rear ends of the sidewalls, and an air guiding plate slantingly connected between lower parts of the sidewalls. The air guiding plate extends up from the first end wall toward the second end wall. A top of the air guiding plate and the sidewalls bound a cooling area communicating with an inside of the supporting bracket. An air inlet of the cooling area is defined between the first end wall and the air guiding plate.

Abstract: A heat dissipation simulator of a component on a printed circuit board (PCB) includes a simulation board and a simulated heat source. The simulation board includes an iron layer and a plastic layer. The simulated heat source includes a simulation chip, a thermal, and a heat sink. The simulation chip, the thermal piece, and the heat sink are mounted on the simulation board in that order. The heat dissipation simulator replaces a sample of the PCB with the component for simulating working states of the component on the PCB.

Abstract: A server cabinet includes a rack, a number of servers, a power distribution unit (PDU), and a position bracket. The rack includes a side plate and a mounting bracket extending from an inner side of the side plate. An engaging portion is formed on a front side of the mounting bracket. The servers are mounted in the rack. Front ends of the servers are fastened to a side of the mounting bracket away from the side plate. A block protrudes from the PDU and engages in the engaging portion. The position bracket includes a base plate fastened to the PDU and a position portion extending from a side of the side plate. Fasteners extend through the position portion and engage in the side plate.

Abstract: A fan device includes a board defining an opening, a fan assembly, and a fastener. Two installation pieces extend from the board at opposite sides of the opening, one of which defines a first through hole. The fan assembly is pivotably mounted between the installation pieces, and includes a fan and a frame receiving the fan. The frame includes a top wall, a bottom wall, and two sidewalls. One of the sidewalls adjacent to the installation piece defining the first through hole defines a first threaded hole. When the fan assembly is pivoted to allow the first through hole to align with the first threaded hole, the fastener extends through the first through hole and then is engaged in the first threaded hole, to make the fan assembly slant relative to the board.

Abstract: A fan device includes a board defining an opening and a fan assembly pivotably received in the opening. The fan assembly includes a fan and a frame receiving the fan. The frame includes a top wall, a bottom wall, and two sidewalls. A front plate extends down and diagonally forward from a front side of the bottom wall. A resilient limiting member is formed on one of the sidewalls. When a bottom of the fan assembly is pivoted rearward to make the fan assembly slanting relative to the board, the front plate is abutted a front side of the board, and the limiting member is abutted a rear side of the board.

Abstract: A mounting device for mounting a fan includes a board, a receiving frame for receiving the fan, and a locking member. The board defines a vent and a positioning hole adjacent to the vent. The receiving frame includes two opposite sidewalls. A fixing leg extends down from a bottom of the receiving frame to be extended through the positioning hole and blocked by a bottom of the board. A tab extends out from the receiving frame. A fastener extends through the tab and is engaged in the board. The locking member includes a bar to block the fan and two fixing arms connected to opposite ends of the bar and being fixed to the sidewalls, respectively.

Abstract: A holding device includes a loading frame and two mounting plates. The loading frame includes a base portion for loading an HDD and a pair of sidewalls perpendicularly extending from the base portion. The sidewalls are parallel to each other. Each sidewall includes two sliding ribs substantially perpendicularly extending from a surface thereof away from the other sidewall. The two mounting plates are opposite to each other. Each mounting plate includes two guiding rails substantially perpendicularly extending from a surface thereof toward the other mounting plate. The two sliding ribs of each sidewall are configured to be slid into the two guiding rails of a corresponding mounting plate.

Abstract: A motherboard having a disk on module (DOM) module includes a connector arranged on the DOM, two first signal input pins and two first signal output pins connected to a control chip of the DOM, a first power pin connected to a first power unit of the DOM, and four first ground pins grounded. A socket to receive the connector includes two second signal input pins and two second signal output pins connected to a serial advanced technology attachment (SATA) control chip of the motherboard, a second power pin connected to a second power unit of the motherboard, and four second ground pins grounded.

Abstract: An electronic device includes an air dam module. The air dam module includes a frame and a rotating member. The frame defines a vent. The rotating member is received in the vent and includes a pivot rotatably connected to midpoints of opposite sides of the frame, a first shield plate extending up from a top side of the pivot, to vertically block an upper half of the vent. In addition, a second shield plate heavier than the first shield plate and extending down from a bottom side of the pivot, to vertically block a lower half of the vent by gravity.

Abstract: A disk on module device includes a serial advanced technology attachment (SATA) connector connected to a SATA interface of a motherboard, a universal serial bus (USB) connector connected to a USB interface of the motherboard, a power unit, a control chip, and a number of storage chips. The power unit is connected to a power pin of the USB connector, to receive electrical power from the motherboard through the USB connector and converts the received voltage to make it suitable for the control chip and the storage chips. The control chip is connected to the SATA connector and the storage chips, to receive a control signal from the motherboard through the SATA connector and control the storage chips to store data.

Abstract: A fastening device for a hard disk drive (HDD) includes a bracket and a bottom plate. The bracket includes a base plate to support the HDD. Two latching tabs extend down from opposite sides of the base plate. A fastening tab extends out from a first end of the base plate. Two blocks protrude from the bottom plate. A hooking slot is defined in each block. The latching tabs are operable to engage in the hooking slots. A fastener is operable to extend through the fastening tab and engage in the bottom plate.

Abstract: A disk on module device includes a serial advanced technology attachment (SATA) connector connected to a SATA interface of a motherboard, a universal serial bus (USB) connector connected to a USB interface of the motherboard, a power unit, a control chip, and a number of storage chips. The power unit is connected to a power pin of the USB connector, to receive electrical power from the motherboard through the USB connector and converts the received voltage to make it suitable for the control chip and the storage chips. The control chip is connected to the SATA connector and the storage chips, to receive a control signal from the motherboard through the SATA connector and control the storage chips to store data.