DC electric drive device and electric device

A technology of electric drive and electric equipment, which is applied in the field of electric equipment and DC electric drive devices, can solve the problems of lack of parallel management capability, difficult management, and difficult energy flow management of battery cells, so as to improve reliability and safety Sexuality, reducing difficulty and cost, and avoiding the effect of manpower and financial resources

Active Publication Date: 2017-08-18
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the battery management system does not have the ability to manage parallel connections, and it is difficult to manage the energy flow of each battery cell between parallel connections
In addition, the more batteries connected in parallel, the more difficult it is to manage

Method used

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  • DC electric drive device and electric device
  • DC electric drive device and electric device

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Embodiment Construction

[0029] In order to make the technical means, creative features, goals and effects of the present invention easy to understand, the following embodiments illustrate the DC electric drive device and electric equipment of the present invention in detail with reference to the accompanying drawings.

[0030] The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

[0031] The DC electric drive device 10 is set in electric equipment such as electric tools, quadcopters, electric vehicles, electric boats, industrial electric forklifts, and electric military equipment for driving electric equipment.

[0032] figure 1 It is a schematic diagram of the circuit structure of the DC electric drive device in this embodiment.

[0033] like figure 1 As shown, the DC electric drive device 10 includes a DC motor 11 , a DC power supply 12 , a command sending unit 13 , an output sensor 14 , a controller 15 , a driver 18...

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Abstract

The present invention provides a DC electric drive device and an electric device comprising the DC electric drive device. The DC electric drive device comprises a DC motor, a DC power supply, an instruction sending part, an output sensor, a controller, a driver and a chopper. The device is characterized in that the DC motor is provided with 2j mutually independent armature winding branches wound up by m windings, 2j*m commutator segments connected with the windings, and 2j mutually independent electric brushes connected with the chopper and in contact with the commutator segments. The chopper is a half-bridge chopper and comprises j mutually independent chopper units. The DC power supply comprises j mutually independent power supply units. Each power supply unit is connected with one chopper unit in the one-to-one correspondence manner. Each chopper unit is correspondingly connected with one electric brush through a current output line so as to power on the armature winding branch connected with the above electric brush, wherein j and m being a positive integer not less than 2.

Description

technical field [0001] The invention belongs to the field of direct current motors, in particular to a direct current electric drive device and electric equipment including the direct current electric drive device. Background technique [0002] With the increase in the number of days and duration of smog in major cities, the country has become more and more strict on the exhaust emission management of fuel equipment; in addition, in a closed indoor working environment, the use of fuel equipment is prohibited; in addition, oil as an energy source It is non-renewable and will face depletion in a few decades. Therefore, electric equipment using electricity as an energy source, such as electric vehicles, electric forklifts and other electric equipment, is more and more favored by manufacturers and consumers. Not only does it have low pollution, it can provide electric energy through renewable energy, and compared with fuel equipment, it also has the advantages of high energy ut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P7/285
CPCH02P7/285
Inventor 金爱娟李少龙
Owner UNIV OF SHANGHAI FOR SCI & TECH
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