CN209747564U

CN209747564U - battery cover plate, battery pack and vehicle

Info

Publication number: CN209747564U
Application number: CN201920822389.6U
Authority: CN
Inventors: 杨树涛; 冯旭东; 陈冠宇
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2019-12-06
Anticipated expiration: 2029-05-31

Abstract

A battery cover plate, a battery pack and a vehicle, the battery cover plate comprising: the cover plate body is in with setting up utmost point post, main notes liquid hole and a plurality of explosion-proof valve of cover plate body, every all be equipped with explosion-proof valve gap on the explosion-proof valve, at least one explosion-proof valve gap is equipped with the vice liquid hole of annotating of normal confined. From this, through set up vice notes liquid hole at explosion-proof valve gap, can release the gas in the battery through vice notes liquid hole, can replenish electrolyte in the battery through vice notes liquid hole simultaneously to can prolong the cycle life of battery, improve the safety in utilization of battery.

Description

Battery cover plate, battery pack and vehicle

Technical Field

The utility model relates to a vehicle technical field particularly, relates to a battery apron, battery package and vehicle.

Background

In recent years, electric vehicles have been developed rapidly, and the driving range of electric vehicles is still one of the important directions for electric vehicle development.

In the related technology, the service life of the battery of the electric automobile is short, the battery is aged due to long-time use, and the battery continuously consumes electrolyte along with other production in the use process, so that the performance of the battery is influenced, and meanwhile, certain potential safety hazards are generated.

SUMMERY OF THE UTILITY MODEL

in view of this, the present invention is directed to a battery cover plate.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

A battery cover plate, comprising: the cover plate body is in with setting up utmost point post, main notes liquid hole and a plurality of explosion-proof valve of cover plate body, every all be equipped with explosion-proof valve gap on the explosion-proof valve, at least one explosion-proof valve gap is equipped with the vice liquid hole of annotating of normal confined.

According to some embodiments of the utility model, explosion-proof valve gap includes the valve gap body and locates valve gap body turn-ups all around, the turn-ups with the cover plate body links to each other, vice notes liquid hole runs through the valve gap body.

according to some embodiments of the utility model, the vice notes liquid hole includes: the valve comprises a valve body, a first section and a second section which are connected, wherein the first section is opened on the outer surface of the valve body, and the size of the first section is gradually reduced from one end which is far away from the second section to one end which is connected with the second section.

According to some embodiments of the utility model, the explosion-proof valve gap be equipped with the sealing washer with apron body sealing connection.

According to some embodiments of the utility model, it is a plurality of explosion-proof valve includes first explosion-proof valve and second explosion-proof valve, first explosion-proof valve is equipped with first explosion-proof valve gap, the second explosion-proof valve is equipped with the second explosion-proof valve gap, first explosion-proof valve gap is equipped with the vice notes liquid hole of normal confined, first explosion-proof valve with the second explosion-proof valve sets up respectively the both sides in liquid hole are annotated to the owner.

According to some embodiments of the utility model, utmost point post includes anodal post and negative pole post, anodal post with the negative pole post is established respectively the both ends of cover plate body.

According to some embodiments of the utility model, vice notes liquid hole is equipped with sealed nail, just at least one explosion-proof valve gap is equipped with seals vice notes liquid hole reaches the gasket of sealed nail.

Compared with the prior art, battery cover plate have following advantage:

Through annotating the liquid hole in explosion-proof valve gap sets up vice, can release the gas in the battery through vice notes liquid hole, can annotate liquid hole through vice simultaneously and supply electrolyte in to the battery to can prolong the cycle life of battery, improve the safety in utilization of battery.

Another object of the present invention is to provide a battery, including: an electric core; the battery cover plate; the battery cover plate is arranged at the open end of the shell to close the shell.

It is another object of the present invention to provide a battery pack, which includes the above battery.

The utility model discloses still provide a vehicle, the vehicle includes foretell battery package.

The battery, the battery pack and the vehicle have the same advantages as the battery cover plate in the prior art, and are not described in detail herein.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

Fig. 1 is a schematic structural diagram of a battery cover plate according to an embodiment of the present invention;

Fig. 2 is a front view of an explosion-proof valve cover according to an embodiment of the present invention;

Fig. 3 is a side view of an explosion-proof valve cover according to an embodiment of the present invention.

Description of reference numerals:

A battery cover plate 100,

a cover plate body 10, a pole post 20, a positive pole post 21, a negative pole post 22, a main liquid injection hole 30,

An explosion-proof valve 40, a first explosion-proof valve 41, a second explosion-proof valve 42,

The anti-explosion valve cover 50, the auxiliary liquid injection hole 51, the first section 511, the second section 512, the valve cover body 52 and the flange 53.

Detailed Description

it should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to the utility model discloses battery cover plate 100 includes cover plate body 10, utmost point post 20, main notes liquid hole 30 and a plurality of explosion-proof valve 40. Wherein, the pole 20, the main liquid injection hole 30 and the plurality of explosion-proof valves 40 are all arranged on the cover plate body 10, each explosion-proof valve 40 is provided with an explosion-proof valve cover 50, and at least one explosion-proof valve cover 50 is provided with a long-closed auxiliary liquid injection hole 51.

It can be understood that after the battery is used for a period of time, harmful gases are generated in the battery, and the service life and the use safety of the battery are affected due to the fact that the harmful gases cannot be effectively discharged. The amount of electrolyte in the battery is reduced while harmful gas is generated, thereby affecting the performance of the battery.

In this application, "normally closed" refers to: the secondary liquid inlet 51 is closed when the battery is in normal operation, but can be opened manually (including manual operation, mechanical equipment operation, etc.). When a certain amount of harmful gas is generated in the battery, the content of the electrolyte is reduced, so that the auxiliary liquid injection hole 51 can be opened, the gas in the battery is discharged through the auxiliary liquid injection hole 51, and the electrolyte is replenished into the battery through the auxiliary liquid injection hole 51 after the gas is discharged, so that the performance of the battery can be ensured, and the use safety of the battery is improved.

According to the utility model discloses battery cover plate 100 through set up vice notes liquid hole 51 at explosion-proof valve gap 50, can release the gas in the battery through vice notes liquid hole 51, can replenish electrolyte in to the battery through vice notes liquid hole 51 simultaneously to can prolong the cycle life of battery, improve the safety in utilization of battery.

As shown in fig. 2, in some embodiments of the present invention, the explosion proof valve cover 50 includes: a valve cover 52 and a flange 53 arranged around the valve cover 52, wherein the flange 53 is connected with the cover 10, and the auxiliary liquid injection hole 51 penetrates the valve cover 52.

The structural strength of the explosion-proof valve cover 50 can be improved by the arrangement of the flanging 53, the reliability of connection and matching of the explosion-proof valve cover 50 and the cover plate body 10 can be improved, and the explosion-proof valve cover 50 also has a good shielding effect on the explosion-proof valve 40 so as to improve the sealing performance of the explosion-proof valve 40. Further, the explosion-proof valve 40 under the explosion-proof valve cover 50 may be pierced at the sub-liquid inlet 51 to facilitate gas discharge from the inside of the battery, and the electrolyte may be injected into the inside of the battery through the sub-liquid inlet 51.

In a further embodiment of the present invention, as shown in fig. 3, the secondary filling hole 51 comprises a first segment 511 and a second segment 512 connected with each other, the first segment 511 is open on the outer surface of the valve cover body 52, and the size of the first segment 511 decreases from the end away from the second segment 512 to the end connected with the second segment 512.

The first section 511 is provided with a divergent opening structure, so that the first section 511 has a good guiding effect on oil, the difficulty of the electrolyte entering the battery from the auxiliary liquid injection hole 51 can be reduced, the opening can reduce the difficulty of the machining and forming of the auxiliary liquid injection hole 51, and the machining of the auxiliary liquid injection hole 51 is facilitated.

The utility model discloses an in some embodiments, explosion-proof valve gap 50 is equipped with the sealing washer in order to with the apron body 10 sealing connection, and the sealing washer can promote the leakproofness between explosion-proof valve gap 50 and the apron body 10, after explosion-proof valve 40 is punctured, still can play good sealed effect through explosion-proof valve gap 50 to promote the reliability of battery.

In some embodiments of the present invention, the plurality of explosion-proof valves 40 include a first explosion-proof valve 41 and a second explosion-proof valve 42, the first explosion-proof valve 41 is provided with a first explosion-proof valve 41 cover, the second explosion-proof valve 42 is provided with a second explosion-proof valve 42 cover, the first explosion-proof valve 41 cover is provided with a normally closed auxiliary liquid injection hole 51, and the first explosion-proof valve 41 and the second explosion-proof valve 42 are respectively disposed on both sides of the main liquid injection hole 30.

Wherein the first explosion-proof valve 41 and the second explosion-proof valve 42 are arranged at intervals, so that when one of the explosion-proof valves 40 is punctured, the other explosion-proof valve 40 can be prevented from being influenced in normal use. It can be understood that, the positions of the first explosion-proof valve 41 and the second explosion-proof valve 42 on the battery cover plate 100 need to be provided with holes on the cover plate body 10, so that the first explosion-proof valve 41 and the second explosion-proof valve 42 are arranged at a certain distance, which can prevent the problem of insufficient structural strength of the cover plate body 10.

It should be noted that, in the present application, the shape of the explosion-proof valve cover 50 can be adjusted according to the design requirement, so as to ensure that the explosion-proof valve cover 50 can play a good shielding role for the explosion-proof valve 40. Such as: rectangular, circular, and elongated in fig. 2. Of course, the shape of the explosion-proof valve cover 50 may be optimally designed according to the space of the battery cover plate 100.

as shown in fig. 1, in some embodiments of the present invention, the terminal post 20 includes a positive terminal post 21 and a negative terminal post 22, and the positive terminal post 21 and the negative terminal post 22 are respectively disposed at two ends of the cover plate body 10, so as to connect a plurality of batteries through the terminal post 20, which is convenient for connection.

In some embodiments of the present invention, the secondary injection hole 51 is provided with a sealing nail, and the at least one explosion-proof valve cover 50 is provided with a sealing sheet for sealing the secondary injection hole 51 and the sealing nail. When it is necessary to perform operations of degassing, injecting the electrolyte, and the like for the battery, it is possible to take out the sealing nail at the secondary pour hole 51 and perform operations of degassing, injecting the electrolyte, and the like for the secondary pour hole 51, and at the electrolyte injection port for the battery, arrange the sealing nail at the secondary pour hole 51 to seal the secondary pour hole 51, and provide a sealing sheet at the secondary pour hole 51 to reseal the secondary pour hole 51. The multi-stage sealing structure can better ensure the sealing performance of the battery after electrolyte is injected, so that the use reliability and the safety of the battery are improved.

in some optional embodiments of the present invention, the sealing nail is configured as a rubber nail, and the rubber nail has certain elasticity, so that the sealing nail is conveniently arranged at the auxiliary liquid injection hole 51, and a good sealing effect can be achieved. The glue nail has good chemical stability and can prevent the glue nail from reacting with electrolyte.

In some optional embodiments of the present invention, the sealing sheet is a metal sheet, and the metal sheet can shield the secondary liquid injection hole 51 and is connected and matched with the valve cover 52 in a welding manner, so as to achieve a good sealing effect.

According to the utility model discloses battery, battery includes: the battery cover plate 100 is arranged at the open end of the shell to close the shell. By arranging the battery cover plate 100, gas in the battery can be actively exhausted, and electrolyte can be injected into the battery, so that the performance and the use safety of the battery can be ensured.

according to the utility model discloses battery package, battery package include foretell battery, through setting up above-mentioned battery, can initiatively exhaust to a plurality of batteries in the battery package to battery replenishment electrolyte, thereby can promote the cycle life of battery, promote the reliability of battery package.

According to the utility model discloses vehicle, vehicle include foretell battery package, the cycle life of battery is long to can reduce the cost of maintaining the vehicle.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery cover plate (100), comprising: the cover plate body (10) and the setting are in utmost point post (20), main liquid filling hole (30) and a plurality of explosion-proof valve (40) of cover plate body (10), every all be equipped with explosion-proof valve lid (50) on explosion-proof valve (40), at least one explosion-proof valve lid (50) are equipped with the vice liquid filling hole (51) of often confined.

2. The battery cover plate (100) according to claim 1, wherein the explosion-proof valve cover (50) comprises a valve cover body (52) and a flange (53) arranged on the periphery of the valve cover body (52), the flange (53) is connected with the cover plate body (10), and the auxiliary liquid injection hole (51) penetrates through the valve cover body (52).

3. The battery cover plate (100) according to claim 2, wherein the secondary pour hole (51) includes: a first section (511) and a second section (512) connected, the first section (511) being open at an outer surface of the valve cover body (52), and the first section (511) being tapered in size from an end facing away from the second section (512) to an end connected to the second section (512).

4. The battery cover plate (100) according to claim 1, wherein the explosion-proof valve cover (50) is provided with a sealing ring to be sealingly connected with the cover plate body (10).

5. The battery cover plate (100) according to claim 1, wherein the plurality of explosion-proof valves (40) include a first explosion-proof valve (41) and a second explosion-proof valve (42), the first explosion-proof valve (41) is provided with a first explosion-proof valve cover (50), the second explosion-proof valve (42) is provided with a second explosion-proof valve cover (50), the first explosion-proof valve cover (50) is provided with a normally-closed secondary liquid injection hole (51), and the first explosion-proof valve (41) and the second explosion-proof valve (42) are respectively disposed on both sides of the primary liquid injection hole (30).

6. The battery cover plate (100) according to claim 1, wherein the pole (20) comprises a positive pole (21) and a negative pole (22), and the positive pole (21) and the negative pole (22) are respectively arranged at two ends of the cover plate body (10).

7. The battery cover plate (100) according to any one of claims 1 to 6, wherein the sub-injection hole (51) is provided with a sealing nail, and the at least one explosion-proof valve cover (50) is provided with a sealing sheet that closes the sub-injection hole (51) and the sealing nail.

8. A battery, comprising:

An electric core;

The battery cover plate (100) according to any one of claims 1 to 7;

A housing having one end open and the battery cell disposed within the housing, the battery cover plate (100) being disposed at the open end of the housing to close the housing.

9. a battery pack comprising the battery according to claim 8.

10. A vehicle characterized by comprising the battery pack according to claim 9.