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Control circuit and control method of multiple packs in parallel and electric tool

A control circuit and electric tool technology, which is applied in the field of electric tool preparation and multi-package parallel control circuit, can solve the problems of easily damaged battery pack control switch and affect the service life of the battery pack control switch, and achieve the effect of protecting the relay

Pending Publication Date: 2019-11-12
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by the endurance of single-battery lawnmowers, multi-battery lawnmowers are becoming more and more popular
At present, the mainstream multi-battery pack lawn mower is controlled by manually switching the battery pack, and when the battery pack stops supplying power to the motor of the lawn mower, or when the motor stops abnormally, the battery pack may be easily damaged due to excessive current in the circuit due to sudden changes. The control switch affects the service life of the battery pack control switch

Method used

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  • Control circuit and control method of multiple packs in parallel and electric tool
  • Control circuit and control method of multiple packs in parallel and electric tool
  • Control circuit and control method of multiple packs in parallel and electric tool

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0038] The multi-package parallel control circuit 100 according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] figure 1 It is a schematic structural diagram of a multi-package parallel control circuit according to an embodiment of the present invention;

[0040] figure 2 It is a schematic structural diag...

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PUM

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Abstract

The invention provides a control circuit and control method of multiple packs in parallel and an electric tool. The control circuit of the multiple packs in parallel is used for controlling a batterymodule comprising a plurality of battery packs in parallel and comprises a plurality of switch branches and a control unit, wherein each switch branch is electrically connected with one of the batterypacks, each switch branch comprises a battery pack control switch electrically connected with the battery pack, the control unit is connected with a control end of a battery pack control switch and adevice and is used for controlling on / off of the battery pack control switch and on / off of the control device, the control unit is used for controlling the device to be started after delaying for time t1 when the battery pack control switch is switched off, and the control unit is used for controlling the battery pack control switch to be switched off after delaying for time t2 when the device isclosed. With the control circuit of the multiple packs in parallel, the battery pack control switch can be effectively protected.

Description

technical field [0001] The invention relates to the technical field of electric tool preparation, in particular to a multi-package parallel control circuit, a control method and an electric tool. Background technique [0002] With the improvement of people's quality of life, higher requirements are placed on the living environment. As a kind of landscaping machinery, electric lawn mowers are widely used in the pruning and finishing of urban street gardens, street green belts, and family garden light green spaces. [0003] In the field of electric lawn mowers, lithium batteries have been more and more widely used due to their excellent new performance in many aspects. However, multi-battery lawnmowers are becoming more and more popular due to the limited battery life of single-battery lawnmowers. At present, the mainstream multi-battery lawn mower is controlled by manually switching the battery pack, and when the battery pack stops supplying power to the motor of the lawn m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0024
Inventor 朱考张宝全
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD
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