CN212412163U

CN212412163U - Battery welding-free connection elastic sheet structure and single battery connection structure

Info

Publication number: CN212412163U
Application number: CN202021383622.4U
Authority: CN
Inventors: 侯要; 路高磊; 左威威; 王丹凤
Original assignee: Zhengzhou Bak New Energy Automobile Co ltd
Current assignee: Zhengzhou Bak New Energy Automobile Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-01-26
Anticipated expiration: 2030-07-15

Abstract

The utility model relates to a power battery assists technical field, in particular to welding connection shell fragment structure and battery cell connection structure are exempted from to battery, exempt from welding connection shell fragment structure to contain: an elastomer connected to the carrier substrate; and the contact head is arranged at the end part of the elastic body and is used for being in contact connection with the battery cell. The utility model discloses simple structure, novelty, design science, reasonable combines through current-carrying piece base member, contact head and elastomer, can absorb the displacement variation volume that produces in the battery use because of vibrations etc. strengthen the battery and be connected with the current-carrying piece is reliable electrically, effectively guarantees the reliable and stable nature of battery power supply performance, has the prospect of very strong application.

Description

Battery welding-free connection elastic sheet structure and single battery connection structure

Technical Field

The utility model relates to a power battery assists technical field, in particular to battery exempts from welded connection shell fragment structure and battery cell connection structure.

Background

The power battery system needs to pass through larger current when in work, and a high-temperature phenomenon can be generated in a region with larger resistance, so that a current-carrying sheet of the power battery pack has the capability of bearing the passing of large current and can bear the impact of high temperature and vibration; the battery current-carrying piece is a device used for connecting a plurality of battery electric cores in series and parallel points in the battery pack and plays a role in collecting current and guiding the current. The connection mode of the current-carrying chip greatly affects the above performance of the current-carrying chip. The current-carrying pieces of the battery pack, the bus bars and the battery cells which are generally connected on the market are mostly welded. When the thinner current-carrying piece is welded on the busbar and the battery cell, the welding process has higher requirement on welding technological parameters, small deviation can cause welding waste products, and the rejection rate is higher; the power battery is mostly used in a vehicle-mounted environment, the requirement on the drawing force of the welded battery pack is high, internal stress exists at the welding point of the current-carrying piece after welding, and welding failure can be caused when vibration and large current are overheated; and the current-carrying piece and the battery are welded with high cost and low efficiency, which is not beneficial to the echelon utilization of the battery.

Disclosure of Invention

Therefore, the utility model provides a welded connection shell fragment structure and battery cell connection structure are exempted from to battery can absorb because of the displacement variation volume that produces such as vibration, realizes the reliable connection of battery and current-carrying piece, and the battery that appears when avoiding long-term the use breaks down such as inefficacy, reliability and stability when promoting the power battery energy supply.

According to the utility model provides a design, a welded connection shell fragment structure is exempted from to battery contains: an elastomer connected to the carrier substrate; and the contact head is arranged at the end part of the elastic body and is used for being in contact connection with the battery cell.

As the welding-free connection elastic sheet structure of the battery, further, a plurality of elastic bodies are arranged on the current-carrying sheet matrix; the plurality of elastic bodies are arranged in a circular array.

As the utility model discloses the welded connection shell fragment structure is exempted from to the battery, furtherly sets up two elastomers on the current-carrying piece base member at least.

As the utility model discloses the welded connection shell fragment structure is exempted from to the battery, furtherly, the elastomer is the arc structure.

As the utility model discloses the welded connection shell fragment structure is exempted from to the battery, furtherly, the elastomer contains the elastic connection board, locates the arc end plate one that the elastic connection board tip is used for being connected with the current-carrying piece base member and locates the arc end plate two that the elastic connection board other end is used for connecting the contact head.

As the utility model discloses the welded connection shell fragment structure is exempted from to the battery, furtherly, elastic connection board, arc end plate one and two three of arc end plate are a body structure.

As the utility model discloses the welded connection shell fragment structure is exempted from to the battery, furtherly, the board width of elastomer changes gradually, is reduced gradually by arc end plate one to arc end plate two.

As the utility model discloses the welded connection shell fragment structure is exempted from to the battery, furtherly, the elastomer is the tilt state and fixes with the current-carrying piece base member.

As the utility model discloses the welded connection shell fragment structure is exempted from to the battery, furtherly, the contact head is and sets up with current-carrying piece base member vertically structure.

Further, the utility model discloses still provide battery cell connection structure, contain foretell battery and exempt from welded connection shell fragment structure, current-carrying piece base member and battery monomer auxiliary stand are connected structure as an organic whole.

The utility model has the advantages that:

the utility model has the advantages of simple and novel structure, the design is scientific, reasonable, combines through current-carrying piece base member, contact head and elastomer, can absorb the displacement variation volume that produces in the battery use because of vibrations etc. strengthen the battery and be connected with current-carrying piece reliable electricity, effectively guarantees the reliable and stable nature of battery power supply performance, and here exempt from the welded connection shell fragment and can realize integrative stamping forming, and manufacturing cost is extremely low, has the prospect of very strong application.

Description of the drawings:

FIG. 1 is a schematic diagram of a connecting spring plate in the embodiment;

FIG. 2 is a schematic view of an elastomer structure in an example;

FIG. 3 is a schematic view of a battery mounting structure in the embodiment;

fig. 4 is a schematic diagram of the mounting of a battery current-carrying chip substrate in the embodiment.

In the figure, reference numeral 1 represents a current-carrying sheet base body, reference numeral 2 represents an elastic body, reference numeral 21 represents an elastic connecting plate, reference numeral 3 represents a contact, reference numeral 4 represents an auxiliary support, and reference numeral 5 represents a single battery.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the accompanying drawings and technical solutions, and embodiments of the present invention will be described in detail by way of preferred examples, but the embodiments of the present invention are not limited thereto.

The embodiment of the utility model provides an in the battery exempt from welded connection shell fragment structure, it is shown with reference to fig. 1, contain: an elastic body 2 connected to the current-carrying sheet base 1; and a contact head 3 arranged at the end part of the elastic body and used for being in contact connection with the battery cell. Through the combination of the current-carrying sheet base 1, the contact 3 and the elastic body 2, the displacement variation generated by vibration and the like in the use process of the battery can be absorbed, the reliable electric connection between the battery and the current-carrying sheet is enhanced, and the stable reliability of the power supply performance of the battery is effectively ensured.

As the welding-free connection spring structure of the battery in the embodiment of the present invention, further, the current-carrying sheet substrate 1 is provided with a plurality of elastic bodies 2; this a plurality of elastomers 2 are circular array setting, can guarantee that current-carrying piece work atress is even, realizes each contact head and battery electricity core good contact, guarantees the stability in the battery use.

As the embodiment of the utility model provides a welding connection shell fragment structure is exempted from to battery, furtherly, sets up two elastomers 2 on the current-carrying piece base member 1 at least. Referring to fig. 2, any two of the elastic bodies 2 may be set to be not less than 2, for example, three shown in fig. 2, according to the actual use environment of the battery and the stress condition of the current-carrying sheets.

As the embodiment of the utility model provides a welding connection shell fragment structure is exempted from to the battery, furtherly, elastomer 2 is the arc structure. Furthermore, the elastic body 2 comprises an elastic connecting plate 21, a first arc-shaped end plate arranged at the end part of the elastic connecting plate and used for being connected with the base body of the current-carrying sheet, and a second arc-shaped end plate arranged at the other end of the elastic connecting plate and used for being connected with a contact head. When the elastic body works, the elastic body is gradually bent and deformed from the side of the connecting contact head to the side of the connecting current-carrying piece base, and the deformation amount and the deformation degree of the arc-shaped elastic body are increased so as to ensure the displacement change amount and the like in the use process. Furthermore, the elastic connecting plate, the first arc-shaped end plate and the second arc-shaped end plate are of an integrated structure. As shown in fig. 3, the elastic connection between the current-carrying sheet substrate and the battery core is facilitated, the assembly and maintenance are convenient, the processing and manufacturing are convenient, and the cost is low.

As the embodiment of the utility model provides a welded connection shell fragment structure is exempted from to battery, further, see that fig. 1 is shown, the board width gradual change of elastomer 2 reduces gradually by arc end plate one to arc end plate two, can guarantee under the prerequisite of elastic deformation stability, easier processing preparation.

As the embodiment of the utility model provides a welding connection shell fragment structure is exempted from to the battery, furtherly, elastomer 2 is the tilt state and fixes with current-carrying piece base member 1. Further, the contact 3 is arranged in a structure perpendicular to the current carrier substrate 1. Elastomer 2 and contact 3 can set up in current-carrying piece base member one side or both sides according to actual use environment, are convenient for better elastic connection.

Further, the embodiment of the present invention provides a single battery connection structure, as shown in fig. 4, which includes the above-mentioned battery welding-free connection elastic sheet structure, and the current carrier substrate is connected with the battery auxiliary support 4 as an integrated structure. The current-carrying piece of the existing battery is easy to cause risks such as failure and the like due to factors such as stress state and the like in the long-term use process. In this embodiment, the current-carrying chip substrate elastically connected with the single battery is fixed with the battery auxiliary support into a whole, and the battery auxiliary support can be provided with a battery limiting boss, so as to further ensure that the battery 5 generates displacement variation due to vibration and other reasons in the use process, and the elastic body 2 cannot be caused to generate plastic variation and lose efficacy.

It is to be understood that the foregoing description of specific exemplary embodiments of the invention has been presented for the purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

The term "and/or" herein means that three relationships may exist. For example, a and/or B may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes may be made to the above specific embodiments without departing from the scope of the present invention, and various combinations of the technical features and structures of the present invention may be implemented without departing from the scope of the present invention, which is defined by the appended claims.

Claims

1. A battery welding-free connection spring structure is characterized by comprising:

an elastomer connected to the carrier substrate;

and the contact head is arranged at the end part of the elastic body and is used for being in contact connection with the battery cell.

2. The welding-free connection spring plate structure of the battery according to claim 1, wherein a plurality of elastic bodies are arranged on the current-carrying plate substrate; the plurality of elastic bodies are arranged in a circular array.

3. The solder-free connection spring structure of claim 2, wherein at least two elastomers are disposed on the current-carrying piece substrate.

4. The battery weld-free connection spring structure according to claim 1, wherein the elastic body is of an arc-shaped structure.

5. The solder-free connection spring structure of claim 1, wherein the elastic body comprises an elastic connection plate, a first arc-shaped end plate arranged at the end of the elastic connection plate for connecting with the current-carrying sheet base, and a second arc-shaped end plate arranged at the other end of the elastic connection plate for connecting with the contact.

6. The welding-free connection spring plate structure of the battery according to claim 5, wherein the elastic connection plate, the first arc-shaped end plate and the second arc-shaped end plate are of an integrated structure.

7. The battery weld-free connection spring structure of claim 6, wherein the plate width of the elastic body gradually changes and gradually decreases from the first arc-shaped end plate to the second arc-shaped end plate.

8. The battery soldering-free connection spring piece structure as claimed in claim 1, wherein the elastic body is fixed to the current-carrying sheet base in an inclined state.

9. The battery soldering-free connection spring piece structure as claimed in claim 1 or 8, wherein the contact is arranged in a structure perpendicular to the base of the current-carrying sheet.

10. A single battery connection structure, characterized in that, comprises the battery welding-free connection spring structure of any claim 1-9, and the current-carrying sheet matrix and the battery single auxiliary support are connected into an integral structure.