CN218274815U

CN218274815U - Top cover assembly

Info

Publication number: CN218274815U
Application number: CN202222373667.9U
Authority: CN
Inventors: 张彪
Original assignee: Huading Guolian Sichuan Power Battery Co ltd
Current assignee: Huading Guolian Sichuan Power Battery Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-01-10
Anticipated expiration: 2032-09-06

Abstract

The utility model discloses a top cover component, which comprises a flexible connector, a lower plastic, a cover plate paster and an upper plastic which are sequentially connected from bottom to top, wherein the lower end of the upper plastic is provided with an inward sunken pressure relief channel, and the cover plate paster is sealed at the lower end of the upper plastic; the lower plastic, the cover plate and the cover plate patch are correspondingly provided with pressure relief channel air inlets which are communicated with the pressure relief channel and the battery explosion-proof valve; and the upper plastics at the two ends of the pressure relief channel are provided with pressure relief channel exhaust holes communicated with the outside. The utility model discloses can make the air current pass through the pressure release passageway inlet port and get into the pressure release passageway, then discharge from the pressure release passageway exhaust hole and go, avoid influencing adjacent battery, reduce entire system's potential safety hazard.

Description

Top cover assembly

Technical Field

The utility model belongs to the technical field of the new forms of energy battery, concretely relates to top cap subassembly.

Background

In the prior art, a battery includes a case and a cap assembly disposed on top of the case. The top cover assembly comprises a cover plate, a pole and other components, and when the interior of the battery is abnormal, the airflow in the battery can burst the battery explosion-proof valve and is disorderly connected in the PACK system, so that the abnormality of the PACK system is caused; meanwhile, the random airflow may affect adjacent cells, causing irreversible damage to other cells.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a top cap subassembly for solve the above-mentioned problem that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a top cover assembly comprises a flexible connector, lower plastic, a cover plate patch and upper plastic which are sequentially connected from bottom to top, wherein the lower end of the upper plastic is provided with an inward-concave pressure relief channel, and the cover plate patch is sealed at the lower end of the upper plastic; the lower plastic, the cover plate and the cover plate patch are correspondingly provided with pressure relief channel air inlets which are communicated with the pressure relief channel and the battery explosion-proof valve; and the upper plastics at the two ends of the pressure relief channel are provided with pressure relief channel exhaust holes communicated with the outside.

As a preferred technical scheme of the utility model, the apron is provided with at least two, all is provided with two utmost point post subassemblies on every apron, and every utmost point post subassembly all runs through the apron paster and connects on last plastic.

As an in the utility model discloses in an preferred technical scheme, in two apron that link to each other wantonly, a utmost point post subassembly that sets up on apron and another utmost point post subassembly that sets up on the apron are connected through the busbar, and two utmost point post subassemblies's that the busbar is connected polarity is opposite.

As a preferred technical solution of the present invention, the post assembly includes a post and a post outer plastic disposed outside the post, and the post outer plastic is connected to the upper plastic; each bus bar is connected with the poles of the corresponding two pole assemblies.

As a preferred technical solution in the present invention, the lower end of the upper plastic is provided with a post assembly mounting groove, two opposite inner walls of the post assembly mounting groove are both provided with a buckle, two opposite surfaces of the plastic outside the post are both provided with buckle grooves, and the two buckle grooves are in fit joint with the two buckles; the bus bar is arranged in the pole assembly mounting groove.

As an in the utility model discloses in an optimal technical scheme, the plastic is provided with two at least down, and the lower extreme of every apron all is connected with a lower plastic, and the lower extreme of every lower plastic all is connected with two flexible couplings.

As an in the utility model discloses in an optimal technical scheme, the surface of going up the plastic be provided with the first through-hole of the anodal output utmost point post matched with of battery and with the negative pole output utmost point post matched with second through-hole of battery.

As an optimized technical scheme in the utility model, the surface of going up the plastic is provided with the battery and annotates the liquid hole.

Has the beneficial effects that: the utility model comprises a flexible connection, a lower plastic, a cover plate patch and an upper plastic which are connected in sequence from bottom to top, wherein the flexible connection is positioned between the lower plastic and a battery, so that the damage to the equipment caused by the rigid connection can be avoided; the lower end of the upper plastic is provided with an inwards concave pressure relief channel, and the cover plate patch is sealed at the lower end of the upper plastic, so that the pressure relief channel can form a relatively sealed pressure relief cavity, and the flow direction of gas can be conveniently controlled; lower plastic, the apron corresponds on and is provided with the pressure release channel inlet port with the apron paster, pressure release channel inlet port intercommunication pressure release channel and battery explosion-proof valve, be provided with the outside pressure release channel exhaust hole of intercommunication on the last plastic at pressure release channel both ends, when battery inside takes place unusually to lead to the air current to break away battery explosion-proof valve, can make the air current pass through pressure release channel inlet port and get into pressure release channel, then discharge from pressure release channel exhaust hole, the adjacent battery of influence has been avoided, entire system's potential safety hazard has been reduced.

Drawings

Fig. 1 is an exploded schematic view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a bottom view of the middle and upper plastic of the present invention;

fig. 4 is a schematic structural diagram of the middle pole assembly of the present invention.

In the figure: 1-flexible connection; 2-discharging plastic cement; 3-cover plate; 4-cover plate pasting; 5, coating plastic; 501-a pressure relief channel; 502-pressure relief channel vent; 503-pole assembly mounting groove; 504-buckling; 505 — a first via; 506-a second via; 507-battery liquid injection hole; 6-pressure relief channel inlet; 7-pole assembly; 701-pole column; 702-pole external plastic; 703-a snap groove; 8-bus bar.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the accompanying drawings is only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any inventive work. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto.

Example (b):

as shown in fig. 1-4, the embodiment provides a top cover assembly, which includes a flexible connection 1, a lower plastic 2, a cover plate 3, a cover plate patch 4, and an upper plastic 5, which are connected in sequence from bottom to top, where, of course, only the connection sequence from bottom to top is not an absolute upper-lower relationship in practice, where the flexible connection 1 is located between the lower plastic 2 and a battery, which can avoid the hard connection from damaging equipment, the lower end of the upper plastic 5 is provided with an inward-recessed pressure relief channel 501, and the cover plate patch 4 is sealed at the lower end of the upper plastic 5, so that the pressure relief channel 501 forms a relatively sealed pressure relief cavity, thereby facilitating the control of the gas flow direction; the lower plastic 2, the cover plate 3 and the cover plate patch 4 are correspondingly provided with a pressure relief channel air inlet 6, and the pressure relief channel air inlet 6 is communicated with a pressure relief channel 501 and a battery explosion-proof valve; last plastic 5 at pressure release channel 501 both ends is provided with the outside pressure release channel exhaust hole 502 of intercommunication, when the battery is inside to take place unusually to lead to the air current to break open battery explosion-proof valve, can be so that the air current gets into pressure release channel 501 through pressure release channel inlet hole 6, then discharges from pressure release channel exhaust hole 502, has avoided influencing adjacent battery, has reduced entire system's potential safety hazard.

It should be noted that, for the battery module that different quantity group battery is synthetic, can change different apron paster 4 and last plastic 5, in the reality, flexible coupling 1, lower plastic 2 and apron 3 use corresponding quantity can, adjust convenient and cost is cheap relatively.

The utility model discloses a flexible coupling 1, lower plastic 2, apron 3, apron paster 4 and the last plastic 5 that from the bottom up connected gradually, flexible coupling 1 is located between lower plastic 2 and the battery, can avoid rigid coupling to cause the damage to equipment, can connect a battery through an apron 3, and a plurality of apron 3 are connected to an apron paster 4, and then connect a plurality of batteries, make up into a battery module, make subsequent use more nimble; the lower end of the upper plastic 5 is provided with an inwards concave pressure relief channel 501, and the cover plate patch 4 is sealed at the lower end of the upper plastic 5, so that the pressure relief channel 501 forms a relatively sealed pressure relief cavity, and the flow direction of gas is conveniently controlled; lower plastic 2, the corresponding pressure release channel inlet port 6 that is provided with on apron 3 and the apron paster 4, pressure release channel inlet port 6 intercommunication pressure release channel 501 and battery explosion-proof valve, last plastic 5 at pressure release channel 501 both ends is provided with the outside pressure release channel exhaust hole 502 of intercommunication, when the battery is inside to take place unusually to lead to the air current to break away the battery explosion-proof valve, can make the air current pass through pressure release channel inlet port 6 and get into pressure release channel 501, then discharge from pressure release channel exhaust hole 502, the adjacent battery of influence has been avoided, entire system's potential safety hazard has been reduced.

As a preferred embodiment in this embodiment, it should be further described that the cover plate 3 is provided with at least two cover plates, each cover plate 3 is provided with two terminal post assemblies 7, each terminal post assembly 7 penetrates through the cover plate patch 4 and is connected to the upper plastic 5, one cover plate 3 can be connected to one battery, one cover plate patch 4 is connected to a plurality of cover plates 3, and then the plurality of batteries are connected together, so that a circuit forms a passage to combine into one battery module, and subsequent use is more flexible.

As a preferred embodiment in this embodiment, it should be further explained that, in any two connected cover plates 3, one pole assembly 7 disposed on one cover plate 3 is connected to one pole assembly 7 disposed on the other cover plate 3 through a bus bar 8, and the polarities of the two pole assemblies 7 connected by the bus bar 8 are opposite, so that two adjacent batteries can be connected together, and then the two adjacent batteries are combined into a battery module of at least two batteries as required.

As a preferred embodiment in the present embodiment, it should be further described that the pole assembly 7 includes a pole 701 and a pole outer plastic 702 disposed outside the pole 701, and the pole outer plastic 702 is connected to the upper plastic 5, so as to fix the pole 701 on the upper plastic 5, thereby ensuring the stability of the pole 701; each bus bar 8 is connected to the corresponding pole 701 of the two pole assemblies 7, ensuring that the circuit is completed.

As a preferred embodiment in this embodiment, it should be further explained that the lower end of the upper plastic 5 is provided with a post assembly mounting groove 503, two opposite inner walls of the post assembly mounting groove 503 are both provided with a buckle 504, two opposite surfaces of the post outer plastic 702 are both provided with a buckle groove 703, and the two buckle grooves 703 are in fit clamping connection with the two buckles 504, so that the mounting of the post assembly 7 can be quickly realized, and the stability of the post assembly 7 is ensured; the bus bar 8 is arranged in the pole assembly mounting groove 503, the bus bar 8 can be compressed by the positioning of the pole assembly 7, the stability of the bus bar 8 is guaranteed, and the stable connection between the bus bar 8 and the pole 701 can be guaranteed.

As a preferred embodiment in this embodiment, it needs to be further described that the lower plastic 2 is provided with at least two, the lower end of each cover plate 3 is connected with one lower plastic 2, the lower end of each lower plastic 2 is connected with two flexible connections 1, the lower plastic 2 and the cover plate 3 are correspondingly arranged, so that the device is more simplified, and the connection between the lower plastic 2 and the flexible connections 1 may be merely a snap connection, so as to ensure that the two are relatively stable.

As a preferred embodiment in this embodiment, it should be further described that the outer surface of the upper plastic 5 is provided with a first through hole 505 matched with the positive output pole of the battery and a second through hole 506 matched with the negative output pole of the battery, when a plurality of batteries are combined into a battery module, the positive output pole and the negative output pole of the battery module are provided, and the positive output pole and the negative output pole are exactly corresponding to the first through hole 505 and the second through hole 506, which is convenient for the use of the battery module.

As a preferred embodiment in this embodiment, it should be further explained that the outer surface of the upper plastic 5 is provided with a battery filling hole 507, so as to facilitate the subsequent filling of electrolyte through the battery filling hole 507.

Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A top cover assembly is characterized by comprising a flexible connection (1), a lower plastic (2), a cover plate (3), a cover plate patch (4) and an upper plastic (5) which are sequentially connected from bottom to top, wherein the lower end of the upper plastic (5) is provided with an inwards-concave pressure relief channel (501), and the cover plate patch (4) is sealed at the lower end of the upper plastic (5); the lower plastic (2), the cover plate (3) and the cover plate patch (4) are correspondingly provided with a pressure relief channel air inlet hole (6), and the pressure relief channel air inlet hole (6) is communicated with the pressure relief channel (501) and the battery explosion-proof valve; and the upper plastic (5) at the two ends of the pressure relief channel (501) is provided with a pressure relief channel vent hole (502) communicated with the outside.

2. A cap assembly according to claim 1, characterized in that there are at least two cover plates (3), each cover plate (3) having two post assemblies (7), each post assembly (7) passing through the cover plate patch (4) and being connected to the upper plastic (5).

3. The top cover assembly according to claim 2, characterized in that, in any two connected cover plates (3), one pole assembly (7) arranged on one cover plate (3) is connected with one pole assembly (7) arranged on the other cover plate (3) through a bus bar (8), and the polarities of the two pole assemblies (7) connected by the bus bar (8) are opposite.

4. The top cover assembly according to claim 3, wherein the pole assembly (7) comprises a pole (701) and an outer pole plastic (702) arranged outside the pole (701), and the outer pole plastic (702) is connected with the upper plastic (5); each bus bar (8) is connected with the poles (701) of the corresponding two pole assemblies (7).

5. The top cover assembly according to claim 4, wherein the lower end of the upper plastic (5) is provided with a pole assembly mounting groove (503), two opposite inner walls of the pole assembly mounting groove (503) are provided with buckles (504), two opposite surfaces of the pole outer plastic (702) are provided with buckle grooves (703), and the two buckle grooves (703) are matched and clamped with the two buckles (504); the bus bar (8) is arranged in the pole assembly mounting groove (503).

6. Top cover assembly according to one of the claims 2 to 5, characterized in that at least two lower plastic (2) are provided, one lower plastic (2) is connected to the lower end of each cover plate (3), and two flexible connections (1) are connected to the lower end of each lower plastic (2).

7. A lid assembly according to claim 1, wherein the outer surface of the upper plastic (5) is provided with a first through hole (505) for engaging with the positive output pole of the battery and a second through hole (506) for engaging with the negative output pole of the battery.

8. A lid assembly according to claim 1, wherein the outer surface of the upper plastic (5) is provided with a battery inlet (507).