CN210074008U - Electric connector for power battery and battery box - Google Patents

Electric connector for power battery and battery box Download PDF

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Publication number
CN210074008U
CN210074008U CN201921182425.3U CN201921182425U CN210074008U CN 210074008 U CN210074008 U CN 210074008U CN 201921182425 U CN201921182425 U CN 201921182425U CN 210074008 U CN210074008 U CN 210074008U
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China
Prior art keywords
battery
electric connector
electrical connector
sheet
module
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CN201921182425.3U
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Chinese (zh)
Inventor
赛羊羊
孙钏
杜三保
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Zhengzhou Shenlan Power Technology Co Ltd
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Zhengzhou Shenlan Power Technology 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

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Abstract

The utility model relates to a power battery field especially relates to an electric connector and battery box for power battery. The power battery electric connecting piece comprises a hard aluminum sheet and a nickel sheet; the hard aluminum sheet is provided with a connecting part for connecting the lock bolt, and the connecting part is provided with a connecting hole; the nickel sheets are welded on the upper and lower surfaces of the connecting part in a pressure welding mode. The utility model provides an electric connector adopts the duralumin piece as the main material, when having guaranteed electrically conductive effect, has practiced thrift the cost, has reduced oxidation, the corruption of aluminium in the mode of duralumin piece surface welding nickel piece, and it is also lower to compare in the mode cost that adopts electroplating, also can improve the intensity of duralumin piece in the lock bolt junction in the surface pressure welding nickel piece of duralumin piece, makes electric connector be difficult for the conquassation in lock bolt junction.

Description

Electric connector for power battery and battery box
Technical Field
The utility model relates to a power battery field especially relates to an electric connector and battery box for power battery.
Background
The battery box comprises a plurality of battery modules, need connect through electric connector between the battery module, adopts hard copper bar or soft copper bar to connect usually between current battery module, nevertheless adopts copper as the cost of manufacturing material higher. In the prior art, an electric connecting piece which adopts aluminum as a main conductive material is adopted, but aluminum is extremely easy to oxidize, and the conductivity of aluminum oxide is relatively weak, so that the conductive effect is influenced.
Besides the electric connecting piece between the modules, the power battery also has an output electric connecting piece positioned at the position of the output electrode of the module, because one end of the output electric connecting piece needs to be welded with the pole of the battery core, one end of the output electric connecting piece is made of aluminum material, and the other end of the output electric connecting piece needs to be connected with a locking bolt, generally adopts a copper material with hard hardness, so that the output electric connecting piece mainly adopts a copper-aluminum composite material and has high cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a lower power battery uses electric connector of cost, the utility model discloses an aim at still provides an adopt above-mentioned low-cost electric connector's battery box.
In order to achieve the above object, the utility model discloses electric connector for power battery's technical scheme is:
an electrical connector for a power battery, comprising:
the hard aluminum sheet is provided with a connecting part for connecting the lock bolt, and the connecting part is provided with a connecting hole;
and the nickel sheets are welded on the upper surface and the lower surface of the connecting part in a pressure welding mode.
The utility model discloses an electric connector for power battery's beneficial effect is: the utility model provides an electric connector adopts the duralumin piece as the main material, when having guaranteed electrically conductive effect, has practiced thrift the cost, has reduced oxidation, the corruption of aluminium in the mode of duralumin piece surface welding nickel piece, compares in the mode cost that adopts electroplating also lower, can also improve the intensity of duralumin piece in the lock bolt junction in duralumin piece surface pressure welding nickel piece, makes electric connector be difficult for the conquassation in lock bolt junction.
Further, the thickness of the nickel sheet ranges from 0.1mm to 0.2 mm. The thickness of the nickel sheet is between 0.1mm and 0.2mm, so that the welding is convenient, the effects of reducing the oxidation and corrosion of the hard aluminum sheet are good, and the strength can be ensured.
Furthermore, when the electric connector is used for connecting between the modules, the electric connector comprises a U-shaped main body part, the connecting parts are positioned at two ends of the main body part and are turned over towards the same side, corners of the U-shaped part are transited through fillets, and the size range of the fillets meets the requirement that the heat shrink tube smoothly passes through to enable the heat shrink tube to be sleeved on the main body part.
Furthermore, the outer side of the hard aluminum sheet of the electric connecting piece is sleeved with a heat shrink tube.
Further, the hard aluminum sheet is made of 1060-H24 state aluminum material. The 1060-H24 temper aluminum is harder to prevent crushing during lock bolt attachment.
In order to achieve the above object, the utility model discloses a technical scheme of battery box is:
the utility model provides a battery box, includes two at least battery modules, exports utmost point position department in the battery module and is provided with exports utmost point electric connector, exports electric connector one end and the welding of electric core utmost point post in the module, and the other end is arranged in the locking bolt connection between the module, carries out locking bolt connection through electric connector between the module between two battery modules, characterized by, electric connector and/or exports utmost point electric connector between the module include:
the hard aluminum sheet is provided with a connecting part for connecting the lock bolt, and the connecting part is provided with a connecting hole;
and nickel sheets pressure-welded on the upper and lower surfaces of the connection part.
The utility model discloses a battery box's beneficial effect is: the utility model provides an electric connector and/or output utmost point electric connector adopt the duralumin sheet as the main material between the module, when having guaranteed electrically conductive effect, the cost is practiced thrift, the mode at duralumin sheet surface welding nickel piece has reduced the oxidation of aluminium, corrode, compare in the mode cost that adopts electroplating also lower, can also improve the intensity of duralumin sheet in the lock bolt junction in duralumin sheet surface pressure welding nickel piece, make electric connector and/or output utmost point electric connector be difficult for the conquassation in lock bolt junction between the module.
Further, the thickness of the nickel sheet ranges from 0.1mm to 0.2 mm. The thickness of the nickel sheet is between 0.1mm and 0.2mm, so that the welding is convenient, the effects of reducing the oxidation and corrosion of the hard aluminum sheet are good, and the strength can be ensured.
Furthermore, the inter-module electric connector comprises a U-shaped main body part, the connecting parts are positioned at two ends of the main body part and are turned over towards the same side, corners of the U-shaped part are transited through fillets, and the size range of the fillets meets the requirement that the heat shrink tube smoothly passes through so as to enable the heat shrink tube to be sleeved on the main body part. The heat shrinkable tube is convenient to sleeve by arranging the fillet transition.
Furthermore, the outer side of the electric connector piece is sleeved with a heat shrink tube.
Further, the hard aluminum sheet is made of 1060-H24 state aluminum material. The 1060-H24 temper aluminum is harder to prevent crushing during lock bolt attachment.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of an electrical connector for a power battery according to the present invention;
FIG. 2 is a schematic structural view of a second embodiment of the electrical connector for a power battery according to the present invention;
fig. 3 is a schematic connection diagram of the battery box of the present invention;
description of reference numerals: 101-inter-module electrical connections; 102-a hard aluminum sheet; 103-a connecting portion; 104-connection hole; 105-nickel plate; 201-output pole electrical connection; 202-hard aluminum sheet; 203-nickel plate; 204-a connecting portion; 205-connecting hole; 301-battery module; 302-output pole electrical connection; 303-inter-module electrical connections; 304-FPC molding.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses an electric connector for power battery's concrete embodiment one, as shown in fig. 1, electric connector for power battery in this embodiment is electric connector 101 between the module, and electric connector 101 includes duralumin sheet 102 between the module, and duralumin sheet 102's both ends all are provided with connecting portion 103 for lock the bolted connection with different battery modules, are provided with the connecting hole 104 that supplies the bolt to pass on connecting portion 103, and the upper and lower surface pressure-equalizing at duralumin sheet 102 both ends has welded nickel piece 105. The thickness of the nickel sheet in the embodiment is 0.1mm, so that the welding is convenient, the oxidation and corrosion of the hard aluminum sheet 102 are reduced, and the strength of the hard aluminum sheet can be improved. Of course, in other embodiments, the thickness of the nickel sheet may be 0.15mm or 0.2 mm. The aluminum hardened sheet is made of 1060-H24 aluminum, 1060-H24 aluminum is hard and is prevented from being crushed during the locking bolt connection, and 1060-O aluminum can be used in other embodiments.
In this embodiment, the main body of the inter-module electrical connector is U-shaped, the connecting portions 103 are disposed at two ends of the main body and folded toward the same side, and the connecting portions 103 are perpendicular to the main body of the U-shape. Thus, when mounted, the main body portion can be pressed down against the end face of the battery module, avoiding interference with other components on the upper end face of the module, such as the FPC clip 304. The U-shaped main body part adopts large fillet transition at the turning part, so that the heat shrink tube is conveniently sleeved on the main body part for insulation. In other embodiments, the insulation may be made by plastic dipping or spraying.
The second embodiment of the electrical connector for power battery of the present invention is shown in fig. 2, the electrical connector for power battery in this embodiment is an output electrode electrical connector 201, which includes a hard aluminum sheet 202 and a nickel sheet 203 pressure-welded to the upper and lower surfaces of the hard aluminum sheet 202. The output pole electrical connector is used for welding the end of the non-pressure-welded nickel sheet with the pole of the battery core, the end provided with the nickel sheet is a connecting part 204 used for locking bolt connection, and the connecting hole 205 is arranged. The thickness of the nickel plate in the embodiment is also 0.1mm, and the hard aluminum plate is made of 1060-H24 state aluminum.
The utility model provides an electric connector adopts the duralumin piece as the main material, when having guaranteed electrically conductive effect, has practiced thrift the cost, can reduce oxidation, the corruption of aluminium at duralumin piece surface welding nickel piece, and it is also lower to compare in the mode cost that adopts electroplating, can also improve the intensity of duralumin piece in carrying out the lock bolt junction in duralumin piece surface pressure welding nickel piece, makes electric connector be difficult for the conquassation in lock bolt junction.
The utility model discloses a concrete embodiment of battery box, as shown in fig. 3 (only show each battery module and electric connector in the picture), the battery box is including two battery modules 301 of arranging side by side, and the output position department of battery module 301 is provided with output utmost point electric connector 302, and electric core utmost point post welding in output utmost point electric connector 302 one end and the module, the other end are used for locking bolted connection, carries out locking bolted connection through electric connector 303 between the module between two battery modules 301. The structure of the electrical connector 303 of the module assembly is the same as that of the electrical connector between modules in the first embodiment of the electrical connector for power battery, and the structure of the electrical connector 302 of the output electrode is the same as that of the electrical connector for power battery in the second embodiment of the electrical connector for power battery, which are not described herein again.

Claims (10)

1. An electrical connector for a power battery, comprising:
the hard aluminum sheet is provided with a connecting part for connecting the lock bolt, and the connecting part is provided with a connecting hole;
and nickel sheets pressure-welded on the upper and lower surfaces of the connection part.
2. An electrical connector for a power cell as claimed in claim 1, wherein said nickel plate has a thickness in the range of 0.1mm to 0.2 mm.
3. The power battery electrical connector as claimed in claim 1 or 2, wherein the electrical connector, when used for inter-module connection, comprises a U-shaped main body portion, the connecting portions are located at both ends of the main body portion and folded to the same side, and corners of the U-shaped portion are transited by rounded corners having a size range that allows the heat shrinkable tube to smoothly pass therethrough to fit the heat shrinkable tube on the main body portion.
4. The electrical connector for a power battery of claim 3, wherein the electrical connector is sleeved with a heat shrink tube on the outer side of the hard aluminum sheet.
5. An electrical connector for a power cell according to claim 1 or claim 2, wherein the aluminium stiffener sheet is of aluminium 1060-H24.
6. The utility model provides a battery box, includes two at least battery modules, the output pole position department of battery module is provided with output utmost point electric connector, and electric core utmost point post welding in output utmost point electric connector one end and the module, the other end are used for locking bolted connection, carry out lock bolted connection through electric connector between the module between two battery modules, and characterized by, electric connector and/or output utmost point electric connector include between the module:
the hard aluminum sheet is provided with a connecting part for connecting the lock bolt, and the connecting part is provided with a connecting hole;
and nickel sheets pressure-welded on the upper and lower surfaces of the connection part.
7. The battery case of claim 6, wherein the nickel sheet has a thickness in the range of 0.1mm to 0.2 mm.
8. The battery box according to claim 6 or 7, wherein the inter-module electrical connector comprises a U-shaped main body portion, the connecting portions are located at two ends of the main body portion and are folded towards the same side, and corners of the U-shaped portion are transited by rounded corners having a size range that allows the heat shrinkable tube to smoothly pass through to fit the heat shrinkable tube on the main body portion.
9. The battery box of claim 8, wherein the electrical connector is sleeved with a heat shrink tube outside the duralumin sheet.
10. The battery case according to claim 6 or 7, wherein the aluminum hard sheet is made of an aluminum material of 1060-H24 temper.
CN201921182425.3U 2019-07-25 2019-07-25 Electric connector for power battery and battery box Active CN210074008U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921182425.3U CN210074008U (en) 2019-07-25 2019-07-25 Electric connector for power battery and battery box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921182425.3U CN210074008U (en) 2019-07-25 2019-07-25 Electric connector for power battery and battery box

Publications (1)

Publication Number Publication Date
CN210074008U true CN210074008U (en) 2020-02-14

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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111509179A (en) * 2020-06-03 2020-08-07 惠州市鼎丰泰科技有限公司 Voltage-resistant insulating connector and method for manufacturing same
CN111599974A (en) * 2020-06-18 2020-08-28 惠州市鼎丰泰科技有限公司 Power battery connecting piece and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111509179A (en) * 2020-06-03 2020-08-07 惠州市鼎丰泰科技有限公司 Voltage-resistant insulating connector and method for manufacturing same
CN111599974A (en) * 2020-06-18 2020-08-28 惠州市鼎丰泰科技有限公司 Power battery connecting piece and manufacturing method thereof

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