Title:
CONTROL CIRCUIT OF POWER TOOL
Document Type and Number:
WIPO Patent Application WO/2021/003941
Kind Code:
A1
Abstract:
A control circuit of a power tool, comprising: a voltage output module (100), comprising N battery pack mounting openings (110) which are connected in series, wherein N is greater than or equal to 2, and the battery pack mounting openings (110) are used to mount battery packs, and comprise positive electrode terminals and negative electrode terminals which are used to electrically connect to the battery packs to obtain electrical energy; and a circuit breaker control module (200), which comprises N first switches (210), one first switch (210) being correspondingly connected in parallel to one battery pack mounting opening (110). The power tool may also operate normally when battery packs are mounted in a portion of the battery pack mounting openings, which effectively improves the ease-of-use and usage efficiency of the power tool.
Inventors:
ZHANG YU (CN)
SUN YUNHONG (CN)
SUN YUNHONG (CN)
Application Number:
PCT/CN2019/118698
Publication Date:
January 14, 2021
Filing Date:
November 15, 2019
Export Citation:
Assignee:
POSITEC POWER TOOLS SUZHOU CO LTD NON SMALL ENTITY (CN)
International Classes:
H02J7/00
Foreign References:
| CN108539803A | 2018-09-14 | |||
| CN207504590U | 2018-06-15 | |||
| US20130026992A1 | 2013-01-31 | |||
| CN105552460A | 2016-05-04 | |||
| CN107919691A | 2018-04-17 |
Attorney, Agent or Firm:
SUZHOU JINHE INTELLECTUAL PROPERTY AGENCY(SPECIAL GENERAL PARTNERSHIP) (CN)
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