CN202888303U - Power battery connecting structure for electromobiles - Google Patents
Power battery connecting structure for electromobiles Download PDFInfo
- Publication number
- CN202888303U CN202888303U CN2012205384521U CN201220538452U CN202888303U CN 202888303 U CN202888303 U CN 202888303U CN 2012205384521 U CN2012205384521 U CN 2012205384521U CN 201220538452 U CN201220538452 U CN 201220538452U CN 202888303 U CN202888303 U CN 202888303U
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- CN
- China
- Prior art keywords
- battery
- syndeton
- copper bar
- electrode column
- battery electrode
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model relates to a power battery connecting structure for electromobiles, and belongs to the technical field of power batteries of electromobiles. The connecting structure is connected with rectangular battery poles of two batteries, and a hole is formed in the center of each pole; the connecting structure comprises a bolt, a nut and two connecting copper bar bodies; the bolt is matched with the hole in the center of the battery pole; and the two connecting copper bar bodies are curved to relieve hard force. According to the power battery connecting structure, the contact resistance of a high-capacity battery connecting part can be greatly reduced, and the connecting loss of battery energy can be reduced.
Description
Technical field
The utility model belongs to the power battery of electric vehicle technical field, is applied to connected in series or in parallel between the jumbo electrokinetic cell.Be particularly related to the series wiring structure of a kind of electrokinetic cell that can effectively reduce contact resistance.
Background technology
Power battery of electric vehicle generally needs in twos that battery carries out serial or parallel connection, at present, the syndeton between two battery electrode columns that adopt as shown in Figure 1, this syndeton utilizes the original pole 14 of battery to connect; This syndeton forms by two bolts 12, two copper sheets 13 with the flexible conductor 11 of copper sheet welding, wherein each copper sheet 13 1 end has the upper surface that the hole places a battery electrode column, and the hole of copper sheet communicates with the mesopore of battery electrode column 14, the hole that each bolt 12 passes copper sheet 13 is inserted in the mesopore of a battery electrode column 14, internal screw-thread screw with battery electrode column mesopore bottom, compress copper sheet 13 and pole 14, flexible conductor 11 welds being connected between realization two batteries mutually with copper sheet in another battery.
The copper sheet 13 of above-mentioned syndeton and the contact area of pole 14 are not enough, and the contact resistance that causes bolt 12 to realize under certain pressure is large, can not satisfy design requirement.Electric current is very large in the charge and discharge process, is easy to occur the situations such as battery electrode column heating, connector heating, cell integrated intensification, and then cause and break away from the phenomenons such as battery leakage between battery electrode column and the housing because of heating.Simultaneously, excessive because of contact resistance, a big chunk Conversion of Energy is that heat energy has diffused away in the energy content of battery, does not bring into play dynamic action.Therefore the quality of the connected mode between the interior battery of power battery pack directly has influence on the effect of electrokinetic cell.
The utility model content
The purpose of this utility model is the deficiency that can not effectively reduce contact resistance, reduce energy loss in order to overcome existing connected mode, a kind of power battery of electric vehicle syndeton is provided, this syndeton can decrease high capacity cell connector contact resistance, and then reduce the connection loss of the energy content of battery.Solve the waterproof of connector, anti-problem of burning.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of syndeton of power battery of electric vehicle is characterized in that, this syndeton is connected with the battery electrode column of two batteries, and battery electrode column is naked to be gone out part and be the rectangle post, have in the middle of the pole one with the axial vertical lateral aperture of pole; This syndeton comprises two bolts, two nuts, two connection copper bar bodies; Wherein, two connect the copper bar body is the strip copper sheet, and its middle part is arc-shaped bend, and in order to alleviate hard power, its two ends have two circular holes, and the lateral aperture of the size in aperture and bolt, nut and battery electrode column is complementary.
Characteristics of the present utility model and beneficial effect:
The utility model is applied to connected in series or in parallel between the jumbo electrokinetic cell.It is when jumbo electrokinetic cell is connected in series or in parallel, is a kind of syndeton between two battery electrode columns.
The utility model contacts with being connected copper bar body employing face at battery electrode column, guarantees that contact area meets the requirement of current loading; The connection copper bar of syndeton adopts bent type copper strips, effectively eliminates the impact that sharp pounding causes.
Connect connection lead-out wire hole and the measured hole that also can be reserved with management board on the copper sheet, can be used for the battery pack with management system, and measurement convenient for assembly and that safeguard.
The utility model can reduce the contact resistance of Battery Interconnecting Cables, effectively prevents the interface unit heating of high capacity cell when discharging and recharging.Greatly reduce the phenomenon of leakage that battery causes because of the pole heating.
Description of drawings
Fig. 1 is published syndeton in the prior art.
Fig. 2 is general structure profile of the present utility model.
Fig. 3 is general structure schematic perspective view of the present utility model.
Fig. 4 is the battery electrode column schematic diagram.
Fig. 5 connects copper bar body schematic diagram.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
A kind of power battery of electric vehicle syndeton that the utility model provides is characterized in that this syndeton is connected with the battery electrode column of two batteries, and battery electrode column is naked to be gone out part and be the rectangle post, have in the middle of the pole one with the axial vertical lateral aperture of pole; This syndeton comprises two bolts, two nuts, two connection copper bar bodies; Wherein, two connect the copper bar body is the strip copper sheet, and the middle part is arc-shaped bend, and in order to alleviate hard power, its two ends have two circular holes, and the lateral aperture of the size in aperture and bolt, nut and battery electrode column is complementary.
The annexation of this syndeton and battery electrode column is shown in Fig. 2,3, two copper bar bodies of this syndeton are placed on the both sides of the battery electrode column 22 of two batteries, the circular hole of two copper bar bodies 25 is corresponding with the lateral aperture on the battery electrode column, the bolt 23 of this syndeton is passed, install nut 24, tighten.The both positive and negative polarity that is about to two batteries couples together, and reaches the purpose of series connection.
When this syndeton connects two batteries, will connect copper bar body 25 and contact with battery electrode column with connecting bolt 23, nut 24, controlling dimension and fit clearance guarantee the requirement of contact-making surface area coinciding current strength.And fixation, should guarantee tightening torque 〉=200NCM.Namely finish the connected in series or in parallel of two batteries.
Be preset at the part in the battery when battery electrode column is battery production in the utility model.Different with existing battery electrode column, the utility model changes the column type of battery electrode column into rectangle post 22, and has therebetween the hole 221 of a horizontal direction, as shown in Figure 4, namely connects the copper bar body and contacts with the pole two sides.With copper bar body and pole close contact, along with constantly tightening of connecting bolt 23 and nut 24, it is more and more better with contacting of battery electrode column 22 to connect the copper bar body with connecting bolt 23 and nut 24.
The specific embodiment of each parts of syndeton of the present utility model is respectively described below:
Connection copper bar body of the present utility model is connector, its example structure as shown in Figure 5, two connect the copper bar bodies is strip copper sheet 25, its middle part is arc-shaped bend 251, in order to alleviate hard power, its two ends have two circular holes 252, can make connecting bolt 23 insert in this hole and interference fit.
On the curved surfaces that connects copper bar body 25, also can have two through holes 253,254, as management board line hole and measured hole.But management board line hole welding manage plate line, measured hole can be monitored charging and discharging currents and voltage at any time.
The hole of bolts and nuts of the present utility model and battery electrode column is complementary, and can select standard component.
Claims (2)
1. the syndeton of a power battery of electric vehicle is characterized in that, this syndeton is connected with the battery electrode column of two batteries, and battery electrode column is naked to be gone out part and be the rectangle post, have in the middle of the pole one with the axial vertical lateral aperture of pole; This syndeton comprises two bolts, two nuts, two connection copper bar bodies; Wherein, two connect the copper bar body is the strip copper sheet, and its middle part is arc-shaped bend, and in order to alleviate hard power, its two ends have two circular holes, and the lateral aperture of the size in aperture and bolt, nut and battery electrode column is complementary.
2. syndeton as claimed in claim 1 is characterized in that, also has two through holes on the curved surfaces of described connection copper bar body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205384521U CN202888303U (en) | 2012-10-19 | 2012-10-19 | Power battery connecting structure for electromobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205384521U CN202888303U (en) | 2012-10-19 | 2012-10-19 | Power battery connecting structure for electromobiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888303U true CN202888303U (en) | 2013-04-17 |
Family
ID=48079697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205384521U Expired - Lifetime CN202888303U (en) | 2012-10-19 | 2012-10-19 | Power battery connecting structure for electromobiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202888303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770945A (en) * | 2017-07-18 | 2020-02-07 | 松下知识产权经营株式会社 | Bus bar and battery laminate |
-
2012
- 2012-10-19 CN CN2012205384521U patent/CN202888303U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770945A (en) * | 2017-07-18 | 2020-02-07 | 松下知识产权经营株式会社 | Bus bar and battery laminate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: LIUZHOU BAUHINIA TECHNOLOGY TRANSFER CENTER Co.,Ltd. Assignor: Ordos City of Chinese Redbud Innovation Institute Contract record no.: 2017450000006 Denomination of utility model: Power battery connecting structure for electromobiles Granted publication date: 20130417 License type: Common License Record date: 20170522 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |