Title:
ELECTRIC ENERGY STORAGE DEVICE AND ELECTRIC TOOL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/125211
Kind Code:
A1
Abstract:
An energy storage device, comprising four energy units having the same rated voltage. The four energy units are equally divided into two energy modules; the electric energy storage device is provided with a socket. The socket comprises two voltage output terminals respectively connected to a positive electrode and a negative electrode of the electric energy storage device; the socket is also provided with an intra-module control part corresponding to each energy module to switch and control the connection state of two energy units in each energy module; the socket is also provided with an inter-module control part to switch the connection state between the two energy modules. An electric tool system using the energy storage device, an electric tool having a plug for docking with the socket, the plug being provided with a switching part that cooperates with the intra-module control part or the inter-module control part. The energy storage device can provide three output voltages, and can be matched with a variety of electric tools having different rated voltages, so that the adaptability of the electric energy storage device is increased and the use cost is decreased.
Inventors:
LIU CHUANJUN (CN)
YAN AN (CN)
YAN AN (CN)
Application Number:
PCT/CN2019/114237
Publication Date:
June 25, 2020
Filing Date:
October 30, 2019
Export Citation:
Assignee:
CHANGZHOU GLOBE CO LTD (CN)
International Classes:
H02J7/00; H01M50/50
Foreign References:
| CN209200050U | 2019-08-02 | |||
| CN209217098U | 2019-08-06 | |||
| CN109360930A | 2019-02-19 | |||
| CN209200051U | 2019-08-02 | |||
| CN209217095U | 2019-08-06 | |||
| CN209217096U | 2019-08-06 | |||
| CN209217097U | 2019-08-06 | |||
| CN209200052U | 2019-08-02 | |||
| CN109473616A | 2019-03-15 | |||
| CN109360929A | 2019-02-19 | |||
| CN109599526A | 2019-04-09 | |||
| CN209217099U | 2019-08-06 | |||
| CN209282869U | 2019-08-20 | |||
| CN204190691U | 2015-03-04 | |||
| CN102570777A | 2012-07-11 | |||
| JP2002291165A | 2002-10-04 |
Other References:
See also references of EP 3890146A4
Attorney, Agent or Firm:
SUZHOU LINKED INTELLECTUAL PROPERTY AGENCY (CN)
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