CN210837913U

CN210837913U - Conductive connection structure of new energy battery module

Info

Publication number: CN210837913U
Application number: CN201922148579.7U
Authority: CN
Inventors: 严隆; 刘孟
Original assignee: Dongguan Zhongzhi Electronic Technology Co ltd
Current assignee: Dongguan Zhongzhi Electronic Technology Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-06-23
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a new forms of energy battery module's electrically conductive connection structure, including being used for first connecting piece and the second connecting piece of being connected with the positive negative pole of battery module respectively, first connecting piece fixed connection is in the one end of second connecting piece, electric connection between first connecting piece and the second connecting piece. The utility model discloses simple structure, the technology is ripe, and the cost is lower, easily realizes automated production.

Description

Conductive connection structure of new energy battery module

Technical Field

The utility model relates to a battery technology field especially relates to a new forms of energy battery module's electrically conductive connection structure.

Background

The battery module is formed by connecting a plurality of battery cores through a certain series-parallel relation. In the process of charging and discharging, different battery cores are connected through a metal conductor to transfer current, and the metal conductor and the positive and negative poles of the battery core are welded usually. Because the connection of single electric core adopts electrically conductive aluminium to arrange laser welding electricity core more, and adopt the copper bar to connect usually between module and module, in order to prevent the potential difference corrosion of xenogenesis metal, the output extremely then will adopt two kinds of metals of copper and aluminium. At present, the method is generally realized by adopting copper-aluminum composite materials, aluminum welding nickel and other technologies. But because copper-aluminum composite material is with high costs, processing is complicated, need use machining center to get rid of the copper of electric core welding position, and the technique of aluminium welding nickel piece is behind copper bar lock nut simultaneously, and along with the lapse of time, the nut moment of torsion can produce the influence because of the inflation of copper aluminium.

SUMMERY OF THE UTILITY MODEL

In order to overcome the deficiencies in the prior art, the utility model provides a new forms of energy battery module's electrically conductive connection structure, its simple structure, the cost is lower and firm in connection.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a new forms of energy battery module's electrically conductive connection structure, is including being used for first connecting piece and the second connecting piece of being connected with battery module positive negative pole respectively, first connecting piece fixed connection is in the one end of second connecting piece, electric connection between first connecting piece and the second connecting piece.

Preferably, the first connecting piece is made of red copper.

As preferred scheme, first connecting piece includes the connecting piece body, the upper end of connecting piece body is buckled there is the fixed part with second connecting piece one end fixed connection, the lower extreme of connecting piece body is buckled and is had electric portion, electric portion is located the offside of fixed part, just the screw hole that is used for connecting the battery module copper bar is offered to the centre of electric portion.

Preferably, the electrical connection portion and the fixing portion are both at 90 degrees to the connector body.

Preferably, the connecting piece body is provided with an opening.

As preferred scheme, the second connecting piece includes the connecting portion of being connected with the fixed part and be used for with battery module utmost point post welded weld part, be connected with the conductive metal piece between connecting portion and the weld part, the conductive metal piece undercut.

Preferably, the distance of the downward recess of the conductive metal sheet is 2.5 cm-3 cm.

Preferably, the welding part and the pole of the battery module are welded by laser.

Preferably, the connecting part and the welding part are provided with pressure relief holes, and the pressure relief holes are used for guiding out gas generated in the use process of the battery module.

Compared with the prior art, the beneficial effects of the utility model are that: (1) the first connecting piece made of red copper is fixedly connected to one end of the second connecting piece, and then the other end of the second connecting piece and the first connecting piece are respectively connected with the pole and the copper bar of the battery module, so that chemical corrosion is avoided, and the service life of the conductive connection structure is prolonged; (2) in the using process, the screws of the first connecting piece and the battery module copper bar can collapse along with the vibration of a vehicle, the first connecting piece is made of red copper, and the situation of collapse can be effectively avoided due to the high surface hardness of the red copper; (3) the connecting piece has the advantages of simple structure, mature process, lower cost and easy realization of automatic production.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the conductive connection structure of the new energy battery module according to the present invention.

Fig. 2 is a schematic view of a first connector.

Fig. 3 is a schematic view of a second connector.

1-a first connector; 11-the connector body; 12-an electrical connection; 13-a fixed part; 14-screw holes; 15-opening; 2-a second connector; 21-a connecting part; 22-a weld; 23-a conductive metal sheet; 24-pressure relief hole.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

In the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-3, an electrically conductive connection structure of a new energy battery module includes a first connection member 1 and a second connection member 2 for respectively connecting with the positive and negative electrodes of the battery module, the first connection member 1 is fixedly connected to one end of the second connection member 2, and the first connection member 1 and the second connection member 2 are electrically connected, wherein the first connection member 1 is made of red copper.

Specifically, first connecting piece 1 includes connecting piece body 11, and connecting piece body 11's upper end is buckled there is fixed part 13 with 2 one end fixed connection of second connecting piece, and connecting piece body 11's lower extreme is buckled and is had electric portion 12, and electric portion 12 is located the offside of fixed part 13, and the screw hole 14 that is used for connecting the battery module copper bar is offered to the centre of electric portion 12, and electric portion 12 and fixed part 13 all are 90 degrees with connecting piece body 11 to opening 15 has been seted up on connecting piece body 11.

Specifically, the second connection member 2 includes a connection portion 21 connected to the fixing portion 13 and a soldering portion 22 for soldering with a battery module post, a conductive metal sheet 23 is connected between the connection portion 21 and the soldering portion 22, the conductive metal sheet 23 is recessed downward, and the conductive metal sheet 23 is recessed downward by a distance of 2.5cm to 3cm, and in the present embodiment, the conductive metal sheet 23 is recessed downward by a distance of 2.5 cm.

More specifically, the welding part 22 is laser-welded to the electrode post of the battery module.

Specifically, the connecting part and the welding part 21 are provided with a pressure relief hole 24, and the pressure relief hole 24 is used for guiding out gas generated in the use process of the battery module.

The working principle is as follows: this electrically conductive connection structure is when using, earlier with second connecting piece 2 and battery module utmost point post contact, then through laser welding with second connecting piece 2 and battery module utmost point post fixed connection, it can to pass screw hole 14 through the screw at last and carry out fixed connection with first connecting piece 1 and battery module copper bar.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a new forms of energy battery module's electrically conductive connection structure which characterized in that: the battery module comprises a first connecting piece and a second connecting piece, wherein the first connecting piece and the second connecting piece are used for being connected with the positive electrode and the negative electrode of the battery module respectively, the first connecting piece is fixedly connected to one end of the second connecting piece, and the first connecting piece and the second connecting piece are electrically connected.

2. The structure of claim 1, wherein the conductive connection structure of the new energy battery module comprises: the first connecting piece is made of red copper.

3. The structure of claim 2, wherein the conductive connection structure of the new energy battery module comprises: first connecting piece includes the connecting piece body, the upper end of connecting piece body is buckled there is the fixed part with second connecting piece one end fixed connection, the lower extreme of connecting piece body is buckled and is had electric portion, electric portion is located the offside of fixed part, just the screw hole that is used for connecting the battery module copper bar is offered to the centre of electric portion.

4. The structure of claim 3, wherein the conductive connection structure of the new energy battery module comprises: the electric connection part and the fixing part are both 90 degrees with the connecting piece body.

5. The structure of claim 3, wherein the conductive connection structure of the new energy battery module comprises: the connecting piece body is provided with an opening.

6. The structure of claim 3, wherein the conductive connection structure of the new energy battery module comprises: the second connecting piece includes the connecting portion of being connected with the fixed part and be used for with battery module utmost point post welded weld part, be connected with the conductive metal piece between connecting portion and the weld part, the conductive metal piece undercut.

7. The structure of claim 6, wherein the conductive connection structure of the new energy battery module comprises: the distance of the downward depression of the conductive metal sheet is 2.5 cm-3 cm.

8. The structure of claim 6, wherein the conductive connection structure of the new energy battery module comprises: the welding part and the pole of the battery module are welded by laser.

9. The structure of claim 6, wherein the conductive connection structure of the new energy battery module comprises: the connecting part and the welding part are provided with pressure relief holes, and the pressure relief holes are used for guiding out gas generated in the use process of the battery module.