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: 2016-10-07

A hair dryer includes a housing, and a heating unit, an air supply unit and a circuit board which are arranged inside the housing. The air supply unit includes an impeller and a single-phase direct current brushless motor for driving the impeller. The single-phase direct current brushless motor includes a stator and a rotor which is rotatable relative to the stator. The stator includes a stator core and a single-phase winding wound on the stator core. The rotor includes a shaft and a permanent magnet fixed on the shaft. A power supply terminal for connecting an external power supply and an inverter for providing an alternating current to the single-phase winding are arranged on the circuit board. An input voltage of the inverter is no lower than an input voltage of the power supply terminal.


Patent
Johnson Electric | Date: 2016-10-07

An air flow regulating device includes a housing, an air supply unit and a circuit board which are arranged inside the housing. The air supply unit includes an impeller and a single-phase permanent magnet brushless motor configured to drive the impeller. The single-phase permanent magnet brushless motor includes a stator and a rotor which can rotate relative to the stator. The stator includes a stator core and a single-phase winding wound around the stator core. The rotor includes a shaft and a permanent magnet fixed to the shaft. Numbers of magnetic poles of the stator and the rotor are the same and not greater than six. An outer diameter of the stator core is less than 35 mm and/or an axial thickness of the stator core is between 10 mm and 20 mm.


Patent
Johnson Electric | Date: 2016-09-09

A power tool is provided. The power tool includes a housing, a working head extended from the housing, a brushless direct current motor configured to drive the working head, a battery, an inverter and a controller. The inverter includes a plurality of semiconductor switches and configured to convert a power from the battery into an alternating current power which is coupled to the brushless direct current motor. The controller is configured to output drive signals to control the semiconductor switches of the inverter based on a magnetic field position of the rotor obtained in a sensorless way.


A motor assembly and an integrated circuit for motor drive. The motor assembly includes a single-phase permanent-magnet synchronous motor capable of being powered by an AC power source and an integrated circuit, wherein the single-phase permanent-magnet synchronous motor comprises a stator and a permanent-magnet rotor capable of rotating relative to the stator, the stator comprises a stator iron core and a stator winding wound on the stator iron core, the integrated circuit comprises: a housing and enabling the single-phase permanent-magnet synchronous motor to be started along a fixed direction when the drive circuit is energized each time.


Patent
Johnson Electric | Date: 2017-02-07

A motor component and an integrated circuit for driving a motor are provided. The integrated circuit includes a housing, pins extended out from the housing, and a switch control circuit disposed on a semiconductor substrate. The semiconductor substrate and the switch control circuit are packaged in the housing. The switch control circuit is configured to generate a control signal for controlling a bidirectional AC switch to be switched on or switched off, based on a magnetic field polarity of a rotor of the motor, to control an energized mode for the motor.


Patent
Johnson Electric | Date: 2017-06-21

A motor control system (1) controls power supplying of a motor. The motor control system (1) is configured to control the motor (3) be excited in advance of a zero crossing of a back electromotive force by an advance angle, and the advance angle gradually increases from an acceleration mode to a constant speed operating mode after the motor (3) is started. The motor control system (1) is further configured to control the motor (3) to be excited within a conduction angle, and the conduction angle gradually reduces to a pre-determined value from the acceleration mode to the constant speed operating mode after the motor (3) is started.


Patent
Johnson Electric | Date: 2016-11-28

A fluid driving device, a motor assembly and a friction clutch thereof are disclosed. The friction clutch includes: a fixing member fixed on a rotary shaft; a connecting member slidable disposed on the rotary shaft, wherein when the rotary shaft starts rotating, an axial distance between the connecting member and the fixing member changes such that a friction force between the fixing member and the connecting member increases until the connecting member rotates synchronously with the fixing member; a loading member slidable disposed on the rotary shaft, the loading member and the connecting member being circumferentially positioned; and a restoring member configured to reduce an amount of change of the axial distance between the fixing member and the connecting member when the rotary shaft stops rotating.


Patent
Johnson Electric | Date: 2017-01-17

A motor including a motor outer magnetic core and a motor inner magnetic core. The motor outer magnetic core includes an annular yoke and a plurality of teeth. Each tooth includes a tooth body and a pole shoe. The pole shoes of the plurality of teeth cooperatively define a discontinuous inner ring. The motor inner magnetic core is surrounded by the inner ring. The motor inner magnetic core includes a central portion and a plurality of pole portions surrounding an outer side of the central portion. Each of the pole portions and the central portion define a gap therebetween for receiving a permanent magnet. First connecting portions are connected between adjacent ones of the pole portions. Second connecting portions are connected between the first connecting portions and the central portion.


Patent
Johnson Electric | Date: 2017-01-17

An end cap assembly includes an end cap. The end cap includes an end wall, a sidewall, and a shielding member. The sidewall projects from one side of the end wall. The sidewall defines a cutout for allowing two conducting wires to pass therethrough, and the two conducting wires connect components mounted within the end cap to an external power source. The shielding member is disposed in the cutout. The end cap assembly provides enhanced EMI suppression. In addition, the present invention also provides a motor employing the end cap assembly.


Patent
Johnson Electric | Date: 2017-07-05

A cable connector is provided which includes an insulating body (11) comprising a frame (13) which defines a region (131) therein; a plurality of electrical terminals (14, 15) fixed to the insulating body (11) and extending into the region (131); and a plurality of cables (1, 2) electrically connected to the electrical terminals (14, 15) respectively in the region (131). The region (131) is filled with an insulator (18) to embed the electrical terminals (14, 15) and the cables (1, 2). The cable connector has a relatively high reliability.

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