Hong Kong, Hong Kong
Hong Kong, Hong Kong

Johnson Electric is one of the world's largest providers of motion subsystems and motion components for automotive and industrial applications. Johnson Electric has an annual production capacity of over one billion motors and motion subsystems. The group structure consists of operating divisions and business units focused on a customer application or product segment.The group's motion systems, motors and switches businesses are managed through two operating divisions: Automotive Products Group & Industry Products Group.Supporting these two divisions is the Group's Component & Services function which produces plastic and metal parts, tooling and production equipment for motor and motion related products. Johnson Electric manufactures a wide range of components that form the basis for its final assembled end products.In addition to motion systems and motors, the group also consists of manufacturing businesses and subsidiary companies. These include a provider of flexible printed circuits and interconnect solutions; a niche player in the programmable controls industry; and a speciality metals and trading services company.Johnson Electric is listed on the Hong Kong stock exchange. Johnson Electric has 40,000 employees and subcontract workers in 30 countries, with the majority of the workforce engaged in production activities in China. Engineering centres are located in Hong Kong, Germany, Switzerland, UK, Italy, Japan, China, Israel, Hungary and the USA. Wikipedia.

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Patent
Johnson Electric | Date: 2017-03-01

A liquid pump includes a motor (10) and an impeller (12). The motor (10) includes a stator (14), a rotor 18, a base body (16) and a shaft sleeve unit 20 supporting the rotor (18) for rotation. The shaft sleeve unit (20) includes a fixing member 40 fixed in the base body (16), a bearing (36) received in the fixing member (40) and surrounding the rotary shaft (26), and a resilient buffering member (38) disposed between the fixing member (40) and the bearing (36). The impeller (12) is coupled to the rotor (18).


A fluid driving device, a motor assembly and a centrifugal friction clutch thereof are provided. The centrifugal friction clutch includes: a fixing member (20) for being fixed on a rotary shaft (11) and comprising a guiding groove disposed in a radial direction of the fixing member (20) and passing through an outer circumferential surface of the fixing member (20); a centrifugal block (24) disposed in the guiding groove and slidable in the guiding groove; and a loading wheel (26) having an inner hole (261) in which the fixing member (20) is received. A gap between a wall of the inner hole (261) and the outer circumferential surface of the fixing member (20) is less than a length of the centrifugal block (24) along its sliding direction. The centrifugal friction clutch reduces vibrations at startup of the motor, thereby effectively reducing the vibrational noise. In addition, this also avoids the startup failure of the motor and effectively improves the startup performance of the motor.


Patent
Johnson Electric | Date: 2017-03-01

A motor (100) and methods for making and using same. The motor (100) includes a rotor (200) including magnetic poles and a stator (300) comprising a stator core and a winding wound on the stator core. The stator core includes a plurality of stator teeth each including a tooth body (320) and a tooth end formed at an end of the tooth body (320), the tooth end comprising first and second arcuate regions (311A, 311B) facing the rotor (200). When the winding is not energized, a first magnetic coupling between said first arcuate region (311A) and a selected magnetic pole of said rotor (200) is greater than a second magnetic coupling between said second arcuate region (311B) and the selected magnetic pole, said first arcuate region (311A) being offset from a selected tooth body (32) in such a way as to enable movement of said rotor (200) to initiate in either of two opposite directions relative to said selected tooth body (320) upon energizing the winding.


Patent
Johnson Electric | Date: 2017-02-08

A refrigeration apparatus (1) includes a fan (90) and a motor for driving the fan (90). The motor is a single phase synchronous alternating current motor (10). In comparison with the traditional motor, the single phase synchronous alternating current motor (10) has a reduced size and reduced cost, while ensuring the stable performance.


Patent
Johnson Electric | Date: 2017-04-05

A vehicle window driving mechanism (1) and a vehicle (3) utilizing the vehicle window driving mechanism (1) are provided. The vehicle window driving mechanism (1) includes a box (21), a motor (100) mounted to the box (21), and a transmission assembly (400) mounted to the box (21) and connected to the motor (100). The motor (100) is a single phase permanent magnet brushless motor. The vehicle window driving mechanism (1) has a relatively smaller size.


Patent
Johnson Electric | Date: 2017-03-01

A motor (10) and a pump having the motor are provided. The motor (10) includes a stator (14) and a rotor (16) rotatable relative to the stator (14). At least one of the stator (14) and the rotor (16) has a magnetic core (20) and a winding (22) wound around the magnetic core (20). The magnetic core is mounted to a base body (18). The base body (18) has at least one recess (54) for receiving debris produced by mutual friction between the magnetic core (20) and the base body (18).


The present teaching relates to a magnetic sensor (1105) including an input port (1102, 1104) and an output port (1106) and an electrical circuit (1100) which includes a magnetic field detecting circuit (1130), an output control circuit (1120), a state control circuit (1140) coupled with the output control circuit (1120) and configured to determine whether a predetermined condition is satisfied and signal the same to the output control circuit (1120). When the predetermined condition is satisfied, the state control circuit (1140) is at least responsive to the magnetic induction signal to enable the output control circuit (1120) to control the magnetic sensor to operate in at least one of a first state and a second state. In the first state, a load current flows in a first direction from the output port (1106) to outside of the magnetic sensor. In the second state, a load current flows in a second direction opposite of the first direction from outside of the magnetic sensor into the magnetic sensor via the output port (1106). When the predetermined condition is not satisfied, the state control circuit (1140) enables the output control circuit (1120) to control the magnetic sensor to operate in a third state.


Patent
Johnson Electric | Date: 2017-03-15

A single phase permanent magnet motor (10) includes a stator (20) and a rotor (50, 60, 70, 80) rotatable relative to the stator (20). The stator (20) includes a stator core (30) and a winding (39) wound around the stator core (30). The rotor (50, 60, 70, 80) includes a rotor core (53, 63, 73, 83) and a plurality of permanent magnetic poles (55, 65, 75, 85). The stator core (30) includes at least one first stator core lamination (310) and at least one second stator core lamination (320) stacked with the first stator core lamination (310). Inner structures of the first stator core lamination (310) and the second stator core lamination (320) are different. This structure reduces motors vibration and noise, avoids possible startup dead point and improves the motor (10) startup reliability.


Patent
Johnson Electric | Date: 2017-02-22

A fluid generating device and an electric apparatus utilizing the fluid generating device are provided. The fluid generating device includes a motor (10) and an impeller (100) driven by the motor. The motor (10) is a single phase direct current brushless motor which includes a stator (20) and a rotor (50). The stator (20) includes a stator core (30) and a stator winding (39). The stator core (30) includes an outer ring portion (31), teeth (33) extending inwardly from the outer ring portion (31), a pole shoe (35) formed at the tooth (33). Slot openings (37) are formed between the pole shoes (35). The rotor (50) is received in a receiving chamber defined by the pole shoes (35). Inner surfaces of the pole shoes (35) and the rotor (50) form therebetween a substantially even air gap. The presence of even air gap can reduce the cogging torque of the motor (10), thus reducing the startup current and noise of the motor (10).


Patent
Johnson Electric | Date: 2017-04-05

An electric tool, a motor assembly and a motor drive system are provided. The motor drive system includes a trigger switch (20), an electronic switch (40), and a switch control circuit connected between the trigger switch (20) and the electronic switch (40). The trigger switch (20) is connected in series to a power supply (10). The electronic switch (40) is configured to control a motor to be powered on or powered off. The switch control circuit is configured to control the electronic switch (40) based on a state of the trigger switch (20), wherein the electronic switch (40) is delayed to be turned off after the trigger switch (20) is turned off to control the motor (70) to be powered off later than a time that the trigger switch (20) is turned off.

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