Battery and battery pack

A battery and cell technology, applied in battery pack components, secondary batteries, circuits, etc., can solve the problems of short service life, reduced service life, poor sealing performance, etc. Group Simple Effects

CN103268922AActive Publication Date: 2013-08-28ZHEJIANG GBS GREEN ENERGY CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-08-28

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Abstract

The invention relates to a battery, comprising an end cap, a casing, an electric core, a pole ear, a pole column and a busbar, wherein at least one port is formed on the casing, and the port is covered by the end cap with a through hole; the electric core is mounted in the casing, the electric core is connected with the pole ear, the pole ear is arranged in the casing, the pole ear is connected with the pole column, the pole column extends from the casing by the through hole on the end cap, and the external side of the pole column is connected with the busbar; and the casing is in a cylindrical shape, and heat radiation convex ribs are formed on the external wall of the casing. The invention further discloses a battery set, which is assembled by a plurality of the batteries through a module support plate, and the through holes for installing the batteries are arranged on the module support plate. The battery has advantages of good heat radiation effect, good tightness, good security, long service life, waterproof and dustproof characteristics, simple assembly and low cost.
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Description

[0001] The patent application for this invention is accepted by the State Intellectual Property Office of the People's Republic of China. Application number: 201110032586.6, application date: January 28, 2011, applicant: Wang Weixi, invention name: a divisional application for a battery and battery pack. technical field

[0002] The invention belongs to the technical field of battery manufacturing. Background technique

[0003] The battery is the "heart" of the electric vehicle, and its performance directly affects the performance and quality of the electric vehicle. The batteries of the prior art have the following defects:

[0004] 1. The heat dissipation effect is one of the important indicators for evaluating battery performance. The current battery casing adopts a square structure, and the battery of this structure has the defect of poor heat dissipation effect, and is also not conducive to arrangement and assembly into groups.

[0005] 2. The sealing performance is a...

Examples

Embodiment 1

[0051] Embodiment 1: as Figure 1-4 As shown, the battery includes a casing 1 and a cell 2 , the casing 1 is cylindrical, and the casing 1 contains the cell 2 . Openings are formed at both ends of the casing 1 to lead out the positive and negative electrodes of the battery respectively. The structures of the two ends are the same or symmetrical, and the structure of one end will be described below.

[0052] The opening of the housing is covered by the end cover 3, the middle part of the end cover 3 passes through the pole 4, and the two are sealed and fitted. The inner side of the pole 4 is connected to the cell 2 through the pole lug 5 , the pole 4 and the pole lug 5 are connected by bolts, and the outside of the pole 4 is screwed to the end cover 3 by the nut 6 . The outer end of the pole 4 is also connected to the conductive strip 8 through the nut 7 .

[0053] The two ends of the housing 1 respectively form an annular notch 11 along the inner wall, which is used for embe...

Embodiment 2

[0057] Embodiment 2: as Figure 8-11 As shown, the battery includes a casing 1, which is cylindrical, and contains an electric cell 2 inside the casing 1, and the middle part of the electric cell 2 supports an inner support tube 3 along the axial direction. Openings are formed at both ends of the casing 1 to lead out the positive pole and the negative pole of the battery respectively. The structures of the two ends of the battery are the same or symmetrical, and the structure of the negative pole will be described in detail below.

[0058]An annular notch 1 - 1 is formed along the inner wall at the end of the housing 1 , which is used for sealing and matching with the end cap 12 . The outer wall of the housing 1 is uniformly distributed with heat dissipation ribs 1-2 along the height direction, so that the housing can dissipate heat easily.

[0059] The end cap 12 is made of a circular aluminum alloy, and the outer periphery of the end cap 12 is sheathed with an insulating se...

Embodiment 3

[0069] Embodiment 3: as Figure 12 As shown, the open end of the shell 1 is covered with a threaded ring 18 , and the threaded ring 18 is welded with the outer wall of the shell 1 to form a welded part 19 of a circle.

[0070] The outer diameter of the port of housing 1 is smaller than the outer diameter of end cap 12, and the outer diameter of end cap 12 is corresponding to the outer diameter of threaded ring 18, and the port of housing 1 is covered with end cap 12, and then screwed with nut 17 and threaded ring 18. Tightly fix the end cap 12 , and the outer wall of the housing end in contact with the end cap 12 is sleeved with a sealing ring 16 .

[0071] Other content of this embodiment can refer to Embodiment 2.