CN211670222U

CN211670222U - Electrical isolation board and battery module

Info

Publication number: CN211670222U
Application number: CN201922249503.3U
Authority: CN
Inventors: 陈伟东; 陈小源; 梁绍泽; 黄海福; 徐校良; 王明旺; 王华文; 董红伟
Original assignee: Sunwoda Electric Vehicle Battery Co Ltd
Current assignee: Xinwangda Power Technology Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-10-13
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses an electric isolation plate and a battery module, wherein the electric isolation plate comprises a bottom plate, a cover plate and a connecting piece; the bottom plate is used for covering the battery cell; the connector comprises a first portion and a second portion; the first part is connected with the first end of the cover plate, and the second part is connected with one end of the bottom plate; the bottom plate, the cover plate and the connecting piece are integrally formed. This application sets up the connecting piece between bottom plate and the apron, and an integrative shaping of these three, and the part that can effectual reduction production battery module avoids the mould of opening in production too much, saves the cost, and the part quantity of coproduction battery module is few, saves the mounting process, improves production efficiency.

Description

Electrical isolation board and battery module

Technical Field

This scheme involves battery technical field, specifically is an electrical isolation board and battery module.

Background

The battery grouping refers to that a plurality of battery monomers or a plurality of battery cells are connected in series and/or in parallel through connecting elements to form a battery pack with larger capacity, the battery pack is placed in a battery box with corresponding size, and a partition plate is added on the battery box to form a battery module. The purpose of adding the division board is to be convenient for a plurality of electric cores to be connected and fixed into a whole, and also to be convenient for managing the electric cores.

When assembling the battery module, place a plurality of electric cores in the drain pan usually, then place the division board on electric core, close the battery apron lid on the division board at last. At present, when a battery module is produced, an isolation plate and a battery cover plate are generally required to be produced respectively and then installed, two installation processes are required, the speed of producing the battery module is low, particularly, when the battery module is produced in batch, the electrical isolation plate and the battery cover plate are required to be opened respectively, and the problems of high mold opening cost and low production efficiency exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electric isolation plate convenient to improve production efficiency to solve the problem that above-mentioned electric isolation plate efficiency is low in production.

The utility model provides an electric isolation board includes: the bottom plate, the cover plate and the connecting piece; the bottom plate is used for covering the battery cell; the connector comprises a first portion and a second portion; the first part is connected with the first end of the cover plate, and the second part is connected with one end of the bottom plate; the bottom plate, the cover plate and the connecting piece are integrally formed.

Furthermore, the number of the cover plates and the number of the connecting pieces are two, and the two cover plates are respectively connected with the two opposite ends of the bottom plate through the corresponding connecting pieces.

Furthermore, a second end of the cover plate is provided with a positioning hole, the fixing piece is a buckle, and the positioning hole is buckled with the buckle.

Further, the width of the cover plate is greater than or equal to half of the width of the bottom plate, and the length of the cover plate is greater than that of the bottom plate.

Furthermore, a avoiding groove is arranged on the bottom plate and used for accommodating a pole of the battery cell.

Further, a battery cell pressure relief opening is formed in the bottom plate, and the battery cell pressure relief opening is right opposite to the air exhaust opening of the battery cell.

Further, the battery cell pressure relief opening is adjacent to the buckle.

Further, the bottom plate, the cover plate and the connecting piece are all made of PP materials.

Further, the connecting piece still includes the shock attenuation portion, first portion, shock attenuation portion and the second portion connects gradually.

The utility model also provides a battery module, including the foretell electrical isolation board of arbitrary.

This electric isolation board and battery module of disclosure is provided with the connecting piece between bottom plate and the apron, and this three is integrative one-piece, and the part that can effectual reduction production battery module avoids the mould of opening too much in production, saves the cost, and the part quantity of producing battery module simultaneously is few, saves mounting process, improves production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an electrical isolation board according to an embodiment of the present invention;

fig. 2 is an enlarged schematic view of a portion a in fig. 1.

In the figure, the battery comprises a cover plate 1, a cover plate 11, a positioning hole 2, a bottom plate 21, a buckle 22, a spacing groove 23, a battery cell pressure relief opening 31, a second part 32, a first part 33 and a damping part.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-2, an electrical isolation board according to an embodiment of the present invention includes a bottom board 2, a cover board 1 and a connecting member; the bottom plate 2 is used for covering the battery core; the connector comprises a first portion 32 and a second portion 31; the first part 32 is connected with a first end of the cover plate 1, and the second part 31 is connected with one end of the bottom plate 2; a second end of the cover plate 1, which is far away from the first end, is connected with a fixing piece on the bottom plate 2; the bottom plate 2, the cover plate 1 and the connecting piece are integrally formed.

In this embodiment, the bottom plate 2 and the cover plate 1 are both flat panels. The bottom plate 2 is used for covering the battery cell and protecting the battery cell. The connecting piece is composed of three parts which are fixedly connected in sequence and are respectively a first part 32, a damping part 33 and a second part 31. The first portion 32 is fixedly connected to the first end of the cover plate 1. The second portion 31 is fixedly connected to one end of the base plate 2. The second end of the cover plate 1 far away from the first end is connected with a fixing piece on the bottom plate 2, so that the cover plate 1 can cover the bottom plate 2. The bottom plate, the cover plate and the connecting piece are integrally formed, after a mold is opened, the mold is filled with glue and then formed at one time, the number of the mold is saved, the number of produced parts and the number of the mold are reduced, the cost of the mold is saved, the production flow is reduced, and therefore the production time can be greatly reduced.

In one embodiment, the number of the cover plates 1 and the number of the connecting members are two, and the two cover plates 1 are respectively connected to two opposite ends of the bottom plate 2 through corresponding connecting members.

In this embodiment, the quantity of apron 1 and the quantity of connecting piece all are two, are located two opposite terminal surfaces of bottom plate 2 respectively, two apron 1 lids close when bottom plate 2, if need take out electric core, when pulling up apron 1, an apron 1 does not cover on bottom plate 2 completely, then the rotation range of the apron 1 that corresponds is less, do not need very big space also can open, even this battery module uses on the car, also have sufficient space and be convenient for open and take out electric core behind the apron 1.

In one embodiment, the second end of the cover plate 1 is provided with a positioning hole 11, the fixing member is a buckle 21, and the positioning hole 11 is buckled with the buckle 21.

In this embodiment, the second end of the cover plate 1 has a positioning hole 11, when the second end of the cover plate 1 is connected to the bottom plate 2, the second end of the cover plate 1 rotates around the first end as a shaft, so that the positioning hole 11 on the second end is directly opposite to the buckle 21, and then the cover plate 1 is rotated to the buckle 21 and is buckled in the positioning hole 11, so that the cover plate 1 is fixedly connected to the bottom plate 2.

In one embodiment, the width of the cover plate 1 is greater than or equal to half the width of the base plate 2, and the length of the cover plate 1 is greater than the length of the base plate 2.

In this embodiment, the width of the cover plate 1 is greater than or equal to half of the width of the base plate 2, the sum of the widths of the two cover plates 1 is greater than or equal to the width of the base plate 2, and the length of the cover plate 1 is greater than the length of the base plate 2, so that the two cover plates 1 can cover the whole base plate 2 when the two cover plates are combined together. In a preferred embodiment, the width of the cover plate 1 is equal to half of the width of the base plate 2, so that the two cover plates 1 are exactly attached to the base plate 2 when being covered, and the second ends of the two cover plates 1 are not crossed and stacked.

In one embodiment, the bottom plate 2 is provided with a position-avoiding groove 22, and the position-avoiding groove 22 is used for accommodating a pole of a battery cell.

In this embodiment, the avoiding groove 22 disposed on the bottom plate 2 is used for avoiding the pole of the battery cell. The utmost point post of electric core includes anodal and negative pole, with being provided with on bottom plate 2 and keeping away position groove 22, can hold the utmost point post of electric core, can reduce the height of drain pan to reduce the volume of whole battery module.

In one embodiment, a cell pressure relief opening 23 is formed in the bottom plate 2, and the cell pressure relief opening 23 faces an exhaust opening of the cell.

In this embodiment, be provided with electric core pressure release mouth 23 on bottom plate 2, have the gas vent on the electric core, it is preferred, install explosion-proof valve on the gas vent, electric core pressure release mouth 23 cooperatees with the explosion-proof valve on the electric core, holds the explosion-proof valve on the electric core, ensures that the explosion-proof valve can spout the inside high temperature high-pressure gas of electric core, improves the security of battery module.

In one embodiment, the cell pressure relief vent 23 is adjacent to the snap 21.

In this embodiment, cell pressure relief vent 23 needs certain passageway in order to spout the high temperature high pressure gas in the cell, buckle 21 department with lap 1 on the locating hole be connected, can keep certain gas circulation space, with cell pressure relief vent 23 setting in the place adjacent with buckle 21, help improving explosion-proof valve's work efficiency.

In one embodiment, the base plate 2, the cover plate 1 and the connecting member are all made of PP material.

In this embodiment, the PP material is polypropylene, and is with low costs, and the quality is little, also can reduce the quality of battery module when reducing manufacturing cost, realizes the lightweight. When the plastic is integrally formed, the plastic is made of PP materials, so that the cost is low, the manufacturing is quick, and the production time is saved.

In one embodiment, the connector further comprises a shock absorbing part 33, and the first part 32, the shock absorbing part 33, and the second part 31 are connected in sequence.

In the present embodiment, the shock absorbing portion 33 is a wave-shaped member having an arc-shaped design and is fixed between the first portion 32 and the second portion 31. The first end of the cover plate 1 and one end of the base plate 2 are connected by a connecting member. The second end of the cover plate 1 is the end far away from the first end, and when the second end cover of the cover plate 1 is arranged on the bottom plate 2, the corresponding position on the bottom plate 2 is provided with a fixing piece fixed with the second end of the cover plate 1, so that the cover plate 1 can be fixed above the bottom plate 2. When the cover plate 1 of the battery module is pressed on the bottom plate 2, an acting force is applied to the shock absorption part 33, the shock absorption part 33 converts a downward force of the cover plate 1 into a transverse force towards the second part 31, the shock absorption part 33 is fixedly connected with the second part 31, and the second part 31 is attached to the bottom plate 2, so that the shock absorption part 33 converts the downward force of the cover plate 1 into the transverse force, the direct application of the force of the cover plate 1 on the bottom plate 2 is avoided, and the bottom plate 2 and even the battery cell are damaged. When the quantity of apron 1 and the quantity of connecting piece all are two, two apron 1 and the connecting piece that corresponds are located two opposite terminal surfaces of bottom plate 2 respectively, make two apron 1 power more even dispersion on two shock-absorbing parts 33 to make the power of directly applying on bottom plate 2 littleer, further avoid bottom plate 2 to damage.

To sum up, this electric isolation board and battery module of this disclosure is provided with the connecting piece between bottom plate 2 and the apron 1, and these three integrated into one piece, and the part that can effectual reduction production battery module avoids the mould of opening too much in production, saves the cost, and the part quantity of producing battery module simultaneously is few, saves mounting process, improves production efficiency.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. An electric isolation plate is characterized by comprising a bottom plate, a cover plate and a connecting piece; the bottom plate is used for covering the battery cell;

the connector comprises a first portion and a second portion;

the first part is connected with the first end of the cover plate, and the second part is connected with one end of the bottom plate;

a second end of the cover plate, which is far away from the first end, is connected with the fixing piece on the bottom plate;

the bottom plate, the cover plate and the connecting piece are integrally formed.

2. The electrical separator plate of claim 1 wherein the number of said cover plates and the number of said connectors are two, and two of said cover plates are connected to opposite ends of said base plate by respective connectors.

3. The electrical isolation plate of claim 2, wherein the second end of the cover plate is provided with a positioning hole, the fixing member is a snap, and the positioning hole is fastened to the snap.

4. The electrical separator plate of claim 2 wherein the width of the cover plate is greater than or equal to half the width of the base plate and the length of the cover plate is greater than the length of the base plate.

5. The electrical isolation plate of claim 1, wherein the bottom plate is provided with a space-avoiding groove for accommodating a pole of the battery cell.

6. The electrical separator of claim 3, wherein the base plate is provided with a cell pressure relief vent, and the cell pressure relief vent faces the vent of the cell.

7. The electrical separator plate of claim 6 in which the cell pressure relief vent is adjacent to the snap.

8. The electrical separator plate of claim 1 wherein said base plate, cover plate and said connector are all made of PP material.

9. The electrical separator plate of claim 1 wherein said connector further comprises a shock absorbing portion, said first portion, shock absorbing portion and said second portion being connected in series.

10. A battery module comprising the electrical separator according to any one of claims 1 to 9.