CN204167398U - A kind of electrokinetic cell for soldering Welding Structure in groups - Google Patents

A kind of electrokinetic cell for soldering Welding Structure in groups Download PDF

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Publication number
CN204167398U
CN204167398U CN201420678416.4U CN201420678416U CN204167398U CN 204167398 U CN204167398 U CN 204167398U CN 201420678416 U CN201420678416 U CN 201420678416U CN 204167398 U CN204167398 U CN 204167398U
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Prior art keywords
weld part
battery electrode
electrode column
groups
cell connector
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CN201420678416.4U
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Chinese (zh)
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盛力
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Beijing Pride New Energy Battery Co Ltd
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Beijing Pride New Energy Battery Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model discloses a kind of electrokinetic cell for soldering Welding Structure in groups, comprise battery electrode column and cell connector, it is characterized in that, described battery electrode column comprises battery electrode column weld part, and described battery electrode column weld part is boss structure; Described cell connector comprises cell connector weld part, and described cell connector weld part is through-hole structure; Described cell connector weld part through hole is consistent with described battery electrode column weld part boss shape, described cell connector weld part through hole is larger than described battery electrode column weld part boss, described cell connector weld part coordinates with described battery electrode column weld part and welds, and scolding tin is between described cell connector weld part through hole and described battery electrode column weld part boss.The disclosed electrokinetic cell for soldering of the utility model in groups Welding Structure ensure that electrokinetic cell connection reliability in groups, improves electrokinetic cell welding production efficiency in groups.

Description

A kind of electrokinetic cell for soldering Welding Structure in groups
Technical field
The utility model relates to electrokinetic cell and conducts electricity interconnection technique in groups, particularly relates to a kind of electrokinetic cell for soldering Welding Structure in groups.
Background technology
Along with the high speed development of auto industry, the problem of the aspects such as the environmental pollution that automobile brings, energy shortage, resource exhaustion and safety is more and more outstanding.In order to keep the sustainable development of national economy, protection human residential environment and ensure energy resource supply, huge fund is not stinted by national governments, drops into a large amount of human and material resources, the various approach that demand addresses these problems.Electric automobile has good environmental-protecting performance, both can protection of the environment, can alleviate again energy shortage and readjust the energy structure, and ensures energy security.Current Development of EV has become the common recognition of national governments and automobile industry.
And the power that single battery provides is limited, numerous cells certainly will adopt the mode of series/parallel to connect in groups, using the power source of battery in groups as electric automobile by the power demand that therefore will meet electric automobile.
Battery in groups time its positive and negative terminals method of generally using Bolt Connection with the connection between cell connector (copper bar or aluminium row etc.) or weld.Bolt Connection has simple, easy to operate and adaptable advantage, but in the process of Long-Time Service, easily occurs the integrity problem such as bolt looseness, electrical contact variation and cause operation troubles.Laser welding process then requires that the thickness of cell connector can not be too thick, laser welding process is adopted to be connected on the positive and negative terminals of battery else if, need relatively high energy, and current laser welding technology and equipment are difficult to realize stable production, welding quality is difficult to ensure, contact resistance, conveyance capacity and mechanical strength all can not satisfy the demands.
Soldering process then can carry out battery in groups by the larger cell connector of throat thickness, easily realizes automation, good reliability.
Utility model content
The utility model provides a kind of electrokinetic cell for soldering Welding Structure in groups, ensure that battery connection reliability in groups, improves battery welding production efficiency in groups.
For an electrokinetic cell Welding Structure in groups for soldering, comprise cell connector and battery electrode column, it is characterized in that: described battery electrode column comprises battery electrode column weld part, described battery electrode column weld part is boss structure; Described cell connector comprises cell connector weld part, and described cell connector weld part is through-hole structure; Described cell connector weld part coordinates with described battery electrode column weld part and welds.The boss structure of described battery electrode column weld part, it can be the boss of, two, more than three or three, boss quantity can be determined according to the thickness of the conveyance capacity of electrokinetic cell actual demand electrical property and described cell connector, the number of openings of described cell connector weld part is equal with the boss quantity of described battery electrode column weld part, sees Fig. 1, Fig. 2, Fig. 5 and Fig. 7.
The through-hole structure of described cell connector weld part is consistent with the boss structure shape of described battery electrode column weld part, the through-hole structure of described cell connector weld part is larger than the boss structure of described battery electrode column weld part, during soldering, scolding tin is between described cell connector weld part through hole and described battery electrode column weld part boss, sees Fig. 2, Fig. 3, Fig. 4, Fig. 6 and Fig. 8.
Preferably, the boss structure shape of described battery electrode column weld part can be circular, sees Fig. 5 and Fig. 6.
Preferably, the boss structure shape of described battery electrode column weld part can be square, sees Fig. 1 and Fig. 2.
Preferably, the boss structure shape of described battery electrode column weld part can be strip, sees Fig. 7 and Fig. 8.
The boss structure of described battery electrode column weld part also can be other shapes.
Preferably, the gap that described battery electrode column weld part boss structure coordinates with described cell connector weld part through-hole structure is 1 ~ 3mm, sees Fig. 4, Fig. 6 and Fig. 8.
The electrokinetic cell for soldering that the utility model provides Welding Structure in groups, when welding, first cell connector is positioned over and needs to connect on battery electrode column in groups, the through hole of cell connector weld part is coordinated with the boss of battery electrode column weld part, has certain gap therebetween.Then the scolding tin of thawing is injected gap between cell connector through hole and battery electrode column boss according to the speed preset and flow, solder solidification completes battery welding in groups.The electrokinetic cell in groups production efficiency of soldering and quality can well be ensured.
Accompanying drawing explanation
Fig. 1 is the electrokinetic cell Welding Structure installation diagram in groups of embodiment 1;
Fig. 2 is the electrokinetic cell Welding Structure schematic diagram in groups of embodiment 1;
Fig. 3 is battery electrode column weld part (A--A) profile of Fig. 2;
Fig. 4 is B portion enlarged drawing in Fig. 3;
Fig. 5 is the electrokinetic cell Welding Structure schematic diagram in groups of embodiment 2;
Fig. 6 is the enlarged drawing of the battery electrode column weld part section of embodiment 2;
Fig. 7 is the electrokinetic cell Welding Structure schematic diagram in groups of embodiment 3;
Fig. 8 is the enlarged drawing of the battery electrode column weld part section of embodiment 3.
Wherein, description of reference numerals is as follows:
11 battery 12 battery electrode columns
13 battery electrode column weld part 14 battery electrode column weld part boss
21 cell connector 22 cell connector weld parts
23 cell connector weld part through hole 31 scolding tin
Embodiment
Embodiment 1
Fig. 1 ~ Fig. 4 gives an electrokinetic cell for soldering welded embodiment in groups, comprises battery 11, battery electrode column 12, cell connector 21.
As shown in Figure 1, battery 11 comprises battery electrode column 12, is provided with battery electrode column weld part 13 in the end of battery electrode column 12, and in this example, the structure of battery electrode column weld part 13 is four square battery electrode column weld part boss 14.Cell connector 21 comprises cell connector weld part 22, it is four square cell connector weld part through holes 23 that cell connector weld part 22 is provided with, the shape and structure of cell connector weld part through hole 23 is consistent with the shape and structure of battery electrode column weld part boss 14, the size of the through hole 23 of cell connector weld part is more bigger than the size of battery electrode column weld part boss 14, and cell connector weld part through hole 23 coordinates with battery electrode column weld part boss 14 and welds.
The height of battery electrode column weld part boss 14 is equal with the thickness of cell connector weld part through hole 23, as shown in Fig. 3, Fig. 4.The gap a that battery electrode column weld part boss 14 coordinates with cell connector weld part through hole 23 is 2mm, as shown in Figure 4.
Scolding tin 31 is fused in the gap between battery electrode column weld part boss 14 and cell connector weld part through hole 23, to weld battery electrode column and cell connector.
The electrokinetic cell for soldering that the utility model provides Welding Structure in groups, when welding, first cell connector is positioned over and needs to connect on battery electrode column in groups, the through hole of cell connector weld part is coordinated with the boss of battery electrode column weld part, then the scolding tin of thawing is injected gap between cell connector through hole and battery electrode column boss according to the speed preset and flow, solder solidification completes battery welding in groups.The electrokinetic cell in groups production efficiency of soldering and quality can well be ensured.
Embodiment 2
Fig. 5 and Fig. 6 gives another electrokinetic cell for soldering welded embodiment in groups.
The difference of it and embodiment 1 is:
The structure of battery electrode column weld part 13 is a circular battery electrode column weld part boss 14, the height of battery electrode column weld part boss 14 is less than the thickness of cell connector weld part through hole 23, the gap a that battery electrode column weld part boss 14 coordinates with cell connector weld part through hole 23 is 1mm, as shown in Figure 5 and Figure 6.
The electrokinetic cell for soldering that the utility model provides Welding Structure in groups, when welding, first cell connector is positioned over and needs to connect on battery electrode column in groups, the through hole of cell connector weld part is coordinated with the boss of battery electrode column weld part, then the scolding tin of thawing is injected gap between cell connector through hole and battery electrode column boss according to the speed preset and flow, solder solidification completes battery welding in groups.The electrokinetic cell in groups production efficiency of soldering and quality can well be ensured.
Embodiment 3
Fig. 7 and Fig. 8 gives another electrokinetic cell for soldering welded embodiment in groups.
The difference of it and embodiment 1 is:
The structure of battery electrode column weld part 13 is the battery electrode column weld part boss 14 of two strips, the height of battery electrode column weld part boss 14 is greater than the thickness of cell connector weld part through hole 23, the gap a that battery electrode column weld part boss 14 coordinates with cell connector weld part through hole 23 is 3mm, as shown in Figure 7 and Figure 8.
The electrokinetic cell for soldering that the utility model provides Welding Structure in groups, when welding, first cell connector is positioned over and needs to connect on battery electrode column in groups, the through hole of cell connector weld part is coordinated with the boss of battery electrode column weld part, then the scolding tin of thawing is injected gap between cell connector through hole and battery electrode column boss according to the speed preset and flow, solder solidification completes battery welding in groups.The electrokinetic cell in groups production efficiency of soldering and quality can well be ensured.

Claims (8)

1. for an electrokinetic cell Welding Structure in groups for soldering, comprise cell connector and battery electrode column, it is characterized in that: described battery electrode column comprises battery electrode column weld part, described battery electrode column weld part is boss structure; Described cell connector comprises cell connector weld part, and described cell connector weld part is through-hole structure; Described cell connector weld part coordinates with described battery electrode column weld part and welds.
2. a kind of electrokinetic cell for soldering according to claim 1 Welding Structure in groups, it is characterized in that: described cell connector weld part through hole is consistent with described battery electrode column weld part boss shape, described cell connector weld part through hole is larger than described battery electrode column weld part boss, and the scolding tin of soldering is between described cell connector weld part through hole and described battery electrode column weld part boss.
3. a kind of electrokinetic cell for soldering according to claim 2 Welding Structure in groups, it is characterized in that: described battery electrode column weld part is a boss structure, described cell connector weld part is a through-hole structure.
4. a kind of electrokinetic cell for soldering according to claim 2 Welding Structure in groups, it is characterized in that: described battery electrode column weld part is multiple boss structure, described cell connector weld part is multiple through-hole structure.
5. a kind of electrokinetic cell for soldering according to claim 2 Welding Structure in groups, is characterized in that: the boss structure shape of described battery electrode column weld part is for circular.
6. a kind of electrokinetic cell for soldering according to claim 2 Welding Structure in groups, is characterized in that: the boss structure shape of described battery electrode column weld part is square.
7. a kind of electrokinetic cell for soldering according to claim 2 Welding Structure in groups, is characterized in that: the boss structure shape of described battery electrode column weld part is strip.
8., according to arbitrary described a kind of electrokinetic cell for the soldering Welding Structure in groups of claim 1 ~ 7, it is characterized in that: the gap that described battery electrode column weld part boss coordinates with described cell connector weld part through hole is 1 ~ 3mm.
CN201420678416.4U 2014-11-07 2014-11-07 A kind of electrokinetic cell for soldering Welding Structure in groups Active CN204167398U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109192911A (en) * 2018-09-04 2019-01-11 王华珍 A kind of new energy battery group welding structure and welding method
CN110635098A (en) * 2019-08-23 2019-12-31 大族激光科技产业集团股份有限公司 Welding structure and welding method of tab
CN110635099A (en) * 2019-09-27 2019-12-31 瑞浦能源有限公司 Utmost point post, connection piece and lithium ion battery module
WO2021249349A1 (en) * 2020-06-07 2021-12-16 厦门海辰新能源科技有限公司 Connecting assembly, battery module and battery pack

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109192911A (en) * 2018-09-04 2019-01-11 王华珍 A kind of new energy battery group welding structure and welding method
CN110635098A (en) * 2019-08-23 2019-12-31 大族激光科技产业集团股份有限公司 Welding structure and welding method of tab
CN110635098B (en) * 2019-08-23 2022-08-09 大族激光科技产业集团股份有限公司 Welding method of welding structure
CN110635099A (en) * 2019-09-27 2019-12-31 瑞浦能源有限公司 Utmost point post, connection piece and lithium ion battery module
WO2021249349A1 (en) * 2020-06-07 2021-12-16 厦门海辰新能源科技有限公司 Connecting assembly, battery module and battery pack

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