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DC electric drive device and electric equipment

A technology of electric drive and electric equipment, applied in the field of DC electric drive device and electric equipment, can solve the problems of difficult battery cell energy flow management, difficult management, lack of parallel management ability, etc., to improve reliability and safety. performance, reduce difficulty and cost, and achieve superior system performance

Active Publication Date: 2017-06-13
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 equipment
  • DC electric drive device and electric equipment

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Embodiment Construction

[0030] 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.

[0031] The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

[0032] 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.

[0033] figure 1 It is a schematic diagram of the circuit structure of the DC electric drive device in this embodiment.

[0034] Such as 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...

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Abstract

The invention provides a DC electric drive device and electric equipment. The DC electric drive device is arranged in the electric equipment and is used for driving the electric equipment. The DC electric drive device comprises a DC motor, a DC power supply, an instruction transmission part, an output sensor, a controller, a driver and a chopper. The DC electric drive device is characterized in that the DC motor is provided with 2j independent armature winding branches, 2j*m commutator bars connected with windings, and 2j independent electric brushes in contact with the commutator bars, wherein each armature winding branch is formed by m windings; the chopper is provided with 2j bridge arm units which correspond to the electric brushes one by one; the DC power supply comprises 2j independent power supply units; each power supply unit is connected with one bridge arm unit and one electric brush in a manner of one-to-one correspondence; the armature winding branches connected with the electric brushes are powered; and j and m are positive integers not smaller 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): H02P7/292
CPCH02P7/292
Inventor 金爱娟李少龙
Owner UNIV OF SHANGHAI FOR SCI & TECH
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