CN202888309U - Power battery connecting structure for electromobiles - Google Patents
Power battery connecting structure for electromobiles Download PDFInfo
- Publication number
- CN202888309U CN202888309U CN2012205383730U CN201220538373U CN202888309U CN 202888309 U CN202888309 U CN 202888309U CN 2012205383730 U CN2012205383730 U CN 2012205383730U CN 201220538373 U CN201220538373 U CN 201220538373U CN 202888309 U CN202888309 U CN 202888309U
- Authority
- CN
- China
- Prior art keywords
- battery
- syndeton
- connector
- copper bar
- electrode column
- Prior art date
- 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
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229910052802 copper Inorganic materials 0.000 claims abstract description 36
- 239000010949 copper Substances 0.000 claims abstract description 36
- 230000000295 complement effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004079 fireproofing Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- 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 battery poles of two batteries, wherein the upper end part of a cylindrical inner hole of each battery pole is of a conical shape; the connecting structure comprises two connecting bolts, two connectors and a connecting copper bar body; each connector is provided with a cone matched with the interior of each battery pole and an inner hole matched with each connecting bolt; the upper ends of the two connectors are respectively soldered on one end of each connecting copper bar body, and the lower end of each connector is inserted into a battery pole hole; and the two connecting bolts are respectively screwed with internal threads of lower end holes of the battery poles through holes of the connectors. According to the power battery connecting structure, the contact resistance of a high-capacity battery connector can be greatly reduced, the connecting loss of battery energy can be reduced, and the effects of resisting water and burning can be played.
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.Further also can effectively solve the waterproof of connector, anti-burning problem.
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 the upper end of the cylindrical bore of battery electrode column is conical; This syndeton comprises two connecting bolts, two connectors and a connection copper bar body; Wherein, connector for with battery electrode column in the cone that is complementary, and have the endoporus that is complementary with connecting bolt; The upper end of two connectors respectively with an end that is connected the copper bar body company of weldering mutually, each connector lower end is inserted in the battery electrode column hole, two connecting bolts are the internal screw-thread screw in the hole, bottom of the hole by connector and battery post respectively.
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, a kind of syndeton between battery electrode column and connector, connector and the connector.
The utility model adopts the conical surface to contact at battery electrode column and connector, guarantees that contact area meets the requirement of current loading; Bent type copper strips is adopted in connection between the connector, effectively eliminates the impact that sharp pounding causes; Also can use the flame retardant plastics plastic package process with the appearance that is connected the copper bar body to the exposed parts of connector, effectively realize waterproof, fire prevention.
Connect copper also with on be reserved with connection lead-out wire hole and the measured hole of management board, 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 battery because of the phenomenon of leakage that the pole heating causes, effectively play waterproof, anti-effect of burning simultaneously.
Description of drawings
Fig. 1 is published syndeton in the prior art.
Fig. 2 is general structure schematic diagram of the present utility model.
Fig. 3 is the structural representation of connection copper bar of the present utility model.
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, as shown in Figure 2, this syndeton is connected with the battery electrode column 21 of two batteries, but changes the upper end of the cylindrical bore of original battery electrode column into taper shape, and the bottom still is the cylindrical hole with internal thread; This syndeton comprises two connecting bolts 22, a connection copper bar body 24; Wherein connect the structure of copper bar body 24 as shown in Figure 3, mainly comprise connecting copper bar 31, connector 32 and being connected bent angle 33; Connector 32 for with battery electrode column in the cone that is complementary, and have the endoporus that is complementary with connecting bolt; The upper end cylindrical of two connectors connects with the endoporus interference fit that is connected bent angle 33 respectively, and two connect bent angle 33 and are connected copper bar 31 and are symmetrically welded.Each connector lower end is inserted in battery electrode column 21 holes, and two connecting bolts 23 are the internal screw-thread screw in hole with the hole, bottom of battery post by connector 32 respectively, and soon two batteries couple together.
The utility model also can comprise two seal covers 23, is used for covering in the bolt upper end, realizes the sealing of syndeton and battery electrode column.
When this syndeton connected two batteries, the connector 32 that will connect in the copper bar body 24 with connecting bolt 23 contacted with battery electrode column 21 mesopore inner conical surfaces, and controlling dimension and fit clearance guarantee the requirement of contact-making surface area coinciding current strength.And fixation, should guarantee tightening torque 〉=200NCM.Bolt and pole compress rear seal cover 23 sealings of using that are screwed together.Two connectors that connect copper bar body 24 two ends with is connected bent angle, to connect copper bar continuous, namely finishes the connected in series or in parallel of two batteries.
Be preset at the part in the battery when battery electrode column 21 is battery production in the utility model.Different with existing battery electrode column, the utility model changes the upper end of the cylinder endoporus of battery electrode column into taper hole, is about to the existing structure copper sheet and changes connector into the pole end contact and contact with the pole inner conical surface.Along with constantly tightening of connecting bolt 23, connector 32 is more and more better with contacting of battery electrode column 21.
The specific embodiment of each parts of syndeton of the present utility model is respectively described below:
Connection copper bar body 24 of the present utility model is connector, its example structure as shown in Figure 3, arc connects copper bar 31, L-type and connects bent angle 33 and be welded on and connect copper bar 31 two ends, connects on the horizontal plane of bent angle to have circular hole, can make tapering connector 32 insert in these holes and interference fit.
On the curved surfaces of arc connection copper bar 31, also can have two through holes, as management board line hole 34 and measured hole 35.But management board line hole welding manage plate line, measured hole can be monitored charging and discharging currents and voltage at any time.
Bolt of the present utility model is identical with the bolt of existing syndeton, can select the standard component that is complementary with the battery electrode column endoporus.
Seal cover of the present utility model adopts the fire proofing injection molding, 300 ℃ of heatproofs, and fire-retardant, not spontaneous combustion has certain elasticity.Connect copper bar body 24, the part except the conical surface of connector 32 all adopts fire proofing to carry out plastic packaging, and circular hole is reserved at the position that connector 32 is connected with connecting bolt 22, cooperates with seal cover.After connection is finished, with seal cover this circular hole is sealed.The thickness of plastic packaging is not less than 1 millimeter, plays the effect of insulation, sealing.
Claims (4)
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 the upper end of the cylindrical bore of battery electrode column is conical; This syndeton comprises two connecting bolts, two connectors and a connection copper bar body; Wherein, connector for with battery electrode column in the cone that is complementary, and have the endoporus that is complementary with connecting bolt; The upper end of two connectors respectively with an end that is connected the copper bar body company of weldering mutually, each connector lower end is inserted in the battery electrode column hole, two connecting bolts are the internal screw-thread screw in the hole, bottom of the hole by connector and battery post respectively.
2. the syndeton of power battery of electric vehicle as claimed in claim 1 is characterized in that, this syndeton also comprises two seal covers, covers the top at bolt.
3. the syndeton of power battery of electric vehicle as claimed in claim 1 is characterized in that, described connection copper bar body connects copper bar by an arc and is welded on the L connection bent angle that connects the copper bar two ends and forms, and has circular hole on the horizontal plane of connection bent angle.
4. the syndeton of power battery of electric vehicle as claimed in claim 3 is characterized in that, also can have two through holes on the curved surfaces of described connection copper bar body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205383730U CN202888309U (en) | 2012-10-19 | 2012-10-19 | Power battery connecting structure for electromobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205383730U CN202888309U (en) | 2012-10-19 | 2012-10-19 | Power battery connecting structure for electromobiles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888309U true CN202888309U (en) | 2013-04-17 |
Family
ID=48079703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205383730U Expired - Lifetime CN202888309U (en) | 2012-10-19 | 2012-10-19 | Power battery connecting structure for electromobiles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202888309U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881856A (en) * | 2012-10-16 | 2013-01-16 | 天津力神电池股份有限公司 | Power battery system |
| CN106784562A (en) * | 2016-12-13 | 2017-05-31 | 芜湖天量电池系统有限公司 | A kind of electrical connection module of lithium battery |
| CN109473579A (en) * | 2018-12-19 | 2019-03-15 | 扬州金快乐电源有限公司 | A self-locking connection device for a battery |
-
2012
- 2012-10-19 CN CN2012205383730U patent/CN202888309U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881856A (en) * | 2012-10-16 | 2013-01-16 | 天津力神电池股份有限公司 | Power battery system |
| CN106784562A (en) * | 2016-12-13 | 2017-05-31 | 芜湖天量电池系统有限公司 | A kind of electrical connection module of lithium battery |
| CN109473579A (en) * | 2018-12-19 | 2019-03-15 | 扬州金快乐电源有限公司 | A self-locking connection device for a battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |