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Battery pack

A technology for battery packs and battery casings, which is applied in the direction of batteries, secondary batteries, battery pack components, etc. It can solve the problems of high heat, potential safety hazards, and insufficient power in battery packs, achieve good heat dissipation effects, and ensure safety performance. Effect

Inactive Publication Date: 2015-07-01
NANJING CHERVON IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As the power source of wireless power tools, battery packs have always been the main link restricting the development of wireless power tools. In the past, battery packs often only had an output voltage below 30V. When they were driving high-power power tools, they often caused insufficient power and battery life. bad question
At present, there is no battery pack with an output voltage exceeding 30V and a safe and reasonable structure, as well as chargers and electric tools suitable for the battery pack.
Moreover, the existing battery pack will generate a large amount of heat during charging and discharging, which poses a great potential safety hazard.

Method used

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Embodiment Construction

[0066] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0067] Such as Figure 1 to Figure 3 The battery pack 1 shown includes: a battery pack 10 and a battery case 20 , which are the main components of the battery pack 1 .

[0068]The battery pack 10 is an electric energy container for storing electric energy in the battery pack 1, which can store or output electric energy through mutual conversion of electric energy and chemical energy. Store and export electrical energy.

[0069] The battery core pack 10 stores electrical energy when being charged, and when the battery core pack 10 is connected to an electrical consumer such as an electric tool, it can provide the stored electrical energy to the electrical consumer.

[0070] The battery pack 10 may be an electric energy container as a whole, and the whole referred to here means that the substances used to realize the conversion of electri...

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Abstract

The invention discloses a battery pack. The battery pack comprises a battery shell, a battery cell group, a circuit board and a connection terminal, wherein the battery cell group comprises a trapezoid part, wherein the trapezoid comprises a plurality of battery cell units which are arranged in parallel, and the centers of shapes of transverse sections of the plurality of battery cell units are connected in sequence to at least form a trapezoid; the trapezoid comprises a long bottom edge, a short bottom edge and two side edges, wherein the long bottom edge is only composed of a connection line of the centers of the shapes of the transverse sections of the two adjacent battery cell units, the short bottom edge is at least connected with the centers of the shapes of the transverse sections of two or more than two battery cell units, and the side edges are at least connected with the centers of the shapes of the transverse sections of two or more than two battery cell units; and a whole body part composed of the circuit board and the connection terminal is located between the two battery cell units of the long bottom edge. The battery pack has good heat radiation effect and high safety performance.

Description

technical field [0001] The invention relates to an electric energy storage device, in particular to a battery pack with an output voltage of at least 56V or more. Background technique [0002] As the power source of wireless power tools, battery packs have always been the main link restricting the development of wireless power tools. In the past, battery packs often only had an output voltage below 30V. When they were driving high-power power tools, they often caused insufficient power and battery life. bad question. There is still no battery pack with an output voltage exceeding 30V and a safe and reasonable structure, as well as a charger and an electric tool suitable for the battery pack. Moreover, the existing battery pack will generate a large amount of heat during charging and discharging, which poses a great potential safety hazard. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the object of the present invention is to pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/613H01M50/244H01M50/296H01M50/503
CPCH02J7/00B25F5/00B25F5/001H01M2220/30H01M50/20H01M50/213H01M50/50H01M50/543Y02E60/10Y02P70/50
Inventor 张月祥林晓红袁添识
Owner NANJING CHERVON IND