CN216529092U - Top cover assembly and battery - Google Patents
Top cover assembly and battery Download PDFInfo
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- CN216529092U CN216529092U CN202122502286.1U CN202122502286U CN216529092U CN 216529092 U CN216529092 U CN 216529092U CN 202122502286 U CN202122502286 U CN 202122502286U CN 216529092 U CN216529092 U CN 216529092U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model belongs to the technical field of power batteries, and particularly relates to a top cover assembly and a battery, wherein the top cover assembly comprises a cover plate body and a liquid supplementing sealing assembly, a liquid filling hole is formed in the cover plate body, the liquid supplementing sealing assembly comprises an elastic piece and a sealing cap, the outward end of the elastic piece is fixed on the cover plate body, and the inward end of the elastic piece is connected with the sealing cap; one of the inner side surface of the cover plate body and the sealing cap is provided with an annular bulge surrounding the liquid injection hole, the other of the inner side surface of the cover plate body and the sealing cap is provided with a first sealing ring groove surrounding the liquid injection hole, and the annular bulge is used for being inserted into the first sealing ring groove so as to seal the liquid injection hole. When the top cover assembly is used for replenishing electrolyte, the elastic piece can extend inwards by only pressurizing the liquid injection device into the liquid injection hole, so that the annular bulge is separated from the first sealing ring groove, a communication channel of the liquid injection hole and a space inside the cover plate body is opened, the whole liquid replenishing process is simple and easy to operate, and the liquid replenishing efficiency can be greatly improved.
Description
Technical Field
The utility model belongs to the technical field of power batteries, and particularly relates to a top cover assembly and a battery.
Background
In the field of power batteries, an electrolyte is an important component of a battery, provides a transmission channel for ion exchange between a positive electrode and a negative electrode, and is one of indispensable materials for realizing charge and discharge of the battery. In the actual use process of the battery, as the use time increases, the electrolyte is gradually consumed, and the service life of the battery is further reduced. Aiming at the phenomenon, some liquid injection hole structures capable of replenishing the electrolyte again in the use process of the battery are provided in the industry at present, but the liquid injection can be completed only by complex operations such as disassembly, needling, cutting and the like, and the process of replenishing the electrolyte is complicated and not simple. And the sealing performance of the existing liquid injection hole structure capable of replenishing the electrolyte is also poor.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: to the problems that in the prior art, the electrolyte supplementing process of the electrolyte supplementing injection hole structure is complicated and not simple, a top cover assembly and a battery are provided.
In order to solve the technical problem, an embodiment of the utility model provides a top cover assembly, which comprises a cover plate body and a liquid supplementing sealing assembly, wherein a liquid injection hole is formed in the cover plate body and penetrates through the cover plate body; the liquid supplementing sealing assembly comprises an elastic piece and a sealing cap, the sealing cap is arranged in a space inside the cover plate body, one outward end of the elastic piece is fixed on the cover plate body, and one inward end of the elastic piece is connected with the sealing cap; the inboard surface of apron body with be equipped with on one of the sealing cap and encircle annotate the annular of liquid hole is protruding, the inboard surface of apron body with be equipped with on another in the sealing cap and encircle annotate the first sealed annular of liquid hole, the annular is protruding be used for insert as for first sealed annular is in order to seal annotate the liquid hole.
Optionally, the annular protrusion is disposed on an inner side surface of the cover plate body, and the first sealing ring groove is disposed on the sealing cap.
Optionally, the top cap subassembly still includes the sealing washer, the sealing washer be equipped with the bellied shape matching's of annular second seal ring groove, the annular arch insert to in the second seal ring groove, the surface shape of sealing washer with first seal ring groove matches, the sealing washer be used for insert to in the first seal ring groove.
Optionally, the sealing cap includes cap portion and fixed connection and is in the body of rod of cap portion outside surface central point position, first sealed annular groove sets up on the cap portion, the body of rod stretches into annotate the liquid hole and with the inside one end of elastic component is connected.
Optionally, the sealing cap is the disc, first sealing ring groove is located on the sealing cap, the elastic component encircles the setting of first sealing ring groove, just the inside one end of elastic component with the sealing cap is connected, the outside one end of elastic component is fixed on the inboard surface of apron body.
Optionally, the liquid injection hole includes a first groove, a through hole and a second groove, the first groove penetrates through the outer side surface of the cover plate body, the second groove penetrates through the inner side surface of the cover plate body, the through hole penetrates through the bottom wall of the first groove and the bottom wall of the second groove, and the outward end of the elastic member is fixed on the bottom wall of the second groove.
Optionally, first sealed annular includes fluid infusion passageway annular and the sealed annular of pegging graft that outside-in communicates in proper order, the outside one end of fluid infusion passageway annular with annotate the liquid hole intercommunication, the internal diameter of fluid infusion passageway annular is greater than the internal diameter of sealed annular of pegging graft, the external surface shape of sealing washer with the sealed annular of pegging graft matches, the sealing washer be used for insert as for in the sealed annular of pegging graft.
Optionally, the resilient member is a spring.
Optionally, a guide structure for guiding the sealing ring to be inserted into the first sealing ring groove is arranged on the outer surface of the sealing ring.
According to the top cover assembly provided by the embodiment of the utility model, in a normal use state of the top cover assembly, the elastic piece is in a stretching state due to the internal and external pressure difference of the cover plate body, the annular bulge can be inserted into the first sealing ring groove due to the elastic force of the elastic piece from inside to outside, and the liquid injection hole is sealed by the insertion and matching of the annular bulge and the first sealing ring groove; in the process of replenishing electrolyte to the top cover assembly, the liquid injection device is connected with the liquid injection hole, and air pressure generated by the liquid injection device acts on the sealing cap, so that the sealing cap drives the elastic part to continue to extend inwards, and the annular bulge is separated from the first sealing ring groove; therefore, the electrolyte injected by the electrolyte injection equipment can flow into the space inside the cover plate body through the electrolyte injection hole and the sealing cap, and the purpose of supplementing the electrolyte is achieved. Compared with the prior art, the process of replenishing the electrolyte by the top cover assembly is simple and easy to operate, and the efficiency of replenishing the electrolyte into the space inside the cover plate body can be greatly improved.
On the other hand, the embodiment of the utility model also provides a battery, which comprises a shell, an electric core wrapped by the shell and a top cover component for sealing the shell, wherein the top cover component is the above top cover component, and the liquid injection hole on the cover plate body is communicated with the inner cavity of the shell.
According to the battery provided by the embodiment of the utility model, the top cover assembly is adopted, so that the electrolyte replenishing process is simple and easy to operate, and the efficiency of replenishing the electrolyte into the space inside the cover plate body can be greatly improved.
Drawings
FIG. 1 is a schematic structural view of a header assembly provided in accordance with a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a cap assembly according to a first embodiment of the present invention in a normal use state;
FIG. 3 is an enlarged view of a portion of the structure of FIG. 2 at A;
fig. 4 is a schematic cross-sectional view of the structure at a in fig. 2 during electrolyte replenishment.
The reference numerals in the specification are as follows:
1. a cover plate body; 11. a liquid injection hole; 111. a first groove; 112. a through hole; 113. a second groove; 12. an annular projection; 13. an annular channel; 2. a fluid infusion seal assembly; 21. an elastic member; 22. a sealing cap; 221. a cap portion; 221a, a first sealing ring groove; 221a1, a liquid supplementing channel ring groove; 221a2, sealing plug ring groove; 222. a rod body; 23. a seal ring; 231. chamfering edges; 3. an explosion-proof valve; 4. a first pole column; 5. and a second pole.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
First embodiment
As shown in fig. 1 to 4, the top cover assembly according to an embodiment of the present invention includes a cover plate body 1 and a fluid replacement seal assembly 2, wherein a fluid injection hole 11 is formed in the cover plate body 1, and the fluid injection hole 11 penetrates through the cover plate body 1. Fluid infusion seal assembly 2 includes elastic component 21 and sealing cap 22, sealing cap 22 sets up in the space within apron body 1, the outside one end of elastic component 21 is fixed on apron body 1, the inside one end of elastic component 21 is connected sealing cap 22. The inboard surface of apron body 1 with be equipped with on one of the sealing cap 22 and encircle annotate the annular protrusion 12 of liquid hole 11, the inboard surface of apron body 1 with be equipped with on another in the sealing cap 22 and encircle annotate the first sealed annular groove 221a of liquid hole 11, annular protrusion 12 be used for insert as for first sealed annular groove 221a, in order to seal annotate liquid hole 11.
In a normal use state of the top cover assembly, the external air pressure of the cover plate body 1 is greater than the internal air pressure of the cover plate body 1 by adjusting the internal air pressure of the cover plate body 1, so that the elastic member 21 is in a stretching state. At this time, the annular protrusion 12 is inserted into the first sealing ring groove 221 a. It is understood that the annular protrusion 12 can be directly inserted into the first sealing ring groove 221a to directly contact with the inner sidewall of the first sealing ring groove 221a, or can be inserted into another sealing member provided with a notch, and the sealing member is inserted into the first sealing ring groove 221a to be indirectly inserted into the first sealing ring groove 221 a.
When the annular protrusion 12 is inserted into the first sealing ring groove 221a, the liquid injection hole 11 and the space inside the cover plate body 1 are blocked by the insertion fit of the annular protrusion 12 and the first sealing ring groove 221a, so that the sealing of the inner side opening of the liquid injection hole 11 is realized, and the sealing performance of the top cover assembly in a normal use state is ensured.
In the process that the top cover assembly replenishes electrolyte, the liquid injection device is connected with the liquid injection hole 11, the liquid injection device can generate inward air pressure to act on the sealing cap 22, and the sealing cap 22 drives the elastic piece 21 to overcome the elastic force from inside to outside so as to continue to extend inwards. At this time, the annular protrusion 12 is disengaged from the first sealing ring groove 221 a. When the first seal ring groove 221a is separated from the contact with the annular protrusion 12, the inner opening of the liquid inlet 11 communicates with the space inside the lid body 1, so that the operation of replenishing the electrolyte can be performed.
After the electrolyte is replenished, the filling device is removed, the elastic member 21 is restored to the elongation of the top cover assembly in the normal use state, and the annular protrusion 12 is reinserted into the first sealing ring groove 221 a.
In the first embodiment, as shown in fig. 3 to 4, the annular protrusion 12 is provided on the inner side surface of the cap body 1, and the first sealing ring groove 221a is provided on the sealing cap 22. The annular bulge 12 encloses an annular channel 13, and the outward end of the annular channel 13 is communicated with the inner side opening of the liquid injection hole 11.
As shown in fig. 3, an inward end of the annular channel 13 is isolated from the first sealing ring groove 221a when the annular protrusion 12 is inserted into and fitted with the first sealing ring groove 221a, so as to isolate the inward end from the space inside the cover plate body 1. As shown in fig. 4, an inward end of the annular channel 13 communicates with the first sealing ring groove 221a when the annular protrusion 12 is out of contact with the first sealing ring groove 221a, thereby communicating with the space inside the cap body 1.
In the first embodiment, as shown in fig. 3-4, the top cap assembly further includes a sealing ring 23, the sealing ring 23 is provided with a second sealing ring groove (not shown) matching with the shape of the annular protrusion 12, the annular protrusion 12 is inserted into the second sealing ring groove, the outer surface of the sealing ring 23 is matched with the first sealing ring groove 221a in shape, and the sealing ring 23 is used for being inserted into the first sealing ring groove 221 a.
In a normal use state of the cap assembly, the sealing ring 23 is inserted into the first sealing ring groove 221a such that the annular protrusion 12 is indirectly inserted into the first sealing ring groove 221 a. During the electrolyte replenishing process of the top cap assembly, the first sealing ring groove 221a is separated from the contact with the sealing ring 23, so that the first sealing ring groove 221a is separated from the contact with the annular protrusion 12. The sealing ring 23 is inserted into the first seal ring groove 221a, so that the inner opening of the pour hole 11 can be sealed.
In the first embodiment, as shown in fig. 3-4, the sealing cap 22 includes a cap cover 221 and a rod 222 fixedly connected to the center of the outer surface of the cap cover 221, the first sealing ring groove 221a is disposed on the cap cover 221, and the rod 222 extends into the liquid filling hole 11 and is connected to the inward end of the elastic member 21.
In the first embodiment, as shown in fig. 3 to 4, the liquid inlet 11 includes a first groove 111, a through hole 112 and a second groove 113, the first groove 111 penetrates through the outer side surface of the lid body 1, the second groove 113 penetrates through the inner side surface of the lid body 1, the through hole 112 penetrates through the bottom wall of the first groove 111 and the bottom wall of the second groove 113, and the outward end of the elastic member 21 is fixed to the bottom wall of the second groove 113. In the process of replenishing the electrolyte, the first groove 111 can be used as a mounting and supporting surface of the liquid injection device, and the through hole can be used as an injection port of the electrolyte. The second groove 113 provides a receiving space for the fluid replacement seal assembly 2, and the elastic element 21 and the rod 222 of the sealing cap 22 are both received in the second groove 113. Preferably, the first groove 111 may be opened in a shape of a countersunk hole.
In the first embodiment, as shown in fig. 3 to 4, the first sealing ring groove 221a includes a fluid infusion channel groove 221a1 and a sealing plug-in groove 221a2 which are sequentially communicated from outside to inside, an outward end of the fluid infusion channel groove 221a1 is communicated with the fluid injection hole 111, an inner diameter of the fluid infusion channel groove 221a1 is larger than an inner diameter of the sealing plug-in groove 221a2, an outer surface shape of the sealing ring 23 is matched with the sealing plug-in groove 221a2, and the sealing ring 23 is used for being plugged into the sealing plug-in groove 221a 2. Preferably, the fluid compensating channel ring groove 221a1 may be a flared ring groove with an inner diameter gradually decreasing from outside to inside.
During the electrolyte replenishing process, the sealing cap 22 moves inward relative to the sealing ring 23, the sealing ring 23 is separated from the sealing plug-in groove 221a2, the sealing ring 23 is partially accommodated in the fluid replenishing channel groove 221a1, or the sealing ring 23 is completely separated from the first sealing groove 221 a. At this time, the electrolyte injected into the electrolyte injection hole 11 by the electrolyte injection device flows into the first sealing ring groove 221a through the through hole 112 and the second groove 113, and then overflows from the first sealing ring groove 221a into the space inside the cover plate body 1 to fulfill the purpose of replenishing the electrolyte to soak the battery cell.
In the first embodiment, the elastic member 21 is a spring. In consideration of the problem that the spring is easily corroded by the electrolyte, the material of the elastic member 21 is preferably resistant to the electrolyte for a long time.
In the first embodiment, as shown in fig. 3 to 4, the outer surface of the sealing ring 23 is provided with a guiding structure 231 for guiding the sealing ring 23 to be inserted into the first sealing ring groove 221 a. The guide structure 231 is a chamfered edge disposed on the outer surface of the sealing ring 23, and two chamfered edges 232 are disposed on the outer ring edge and the inner ring edge of the inner side surface of the sealing ring 23, respectively.
When the inward air pressure of the liquid filling device is removed, the elastic member 21 generates an outward elastic restoring force to drive the sealing cap 22 to move toward the sealing ring 23, so that the sealing ring 23 is reinserted into the first sealing ring groove 221 a. In this process, because the sealing ring 23 is provided with the chamfered edge, the first sealing ring groove 221a of the sealing cap 22 does not collide with the sealing ring 23 to affect the insertion of the sealing ring 23 into the first sealing ring groove 221 a.
In other embodiments, the guide structure may also be a radius provided on the sealing ring 23.
In the top cover assembly provided by the first embodiment of the utility model, in a normal use state of the top cover assembly, the elastic piece is in a stretching state due to the difference between the internal pressure and the external pressure of the cover plate body, the annular bulge can be inserted into the first sealing ring groove due to the elastic force of the elastic piece from inside to outside, and the liquid injection hole is sealed by the insertion and matching of the annular bulge and the first sealing ring groove; in the process of replenishing electrolyte to the top cover assembly, the liquid injection device is connected with the liquid injection hole, and air pressure generated by the liquid injection device acts on the sealing cap, so that the sealing cap drives the elastic part to continue to extend inwards, and the annular bulge is separated from the first sealing ring groove; therefore, the electrolyte injected by the electrolyte injection equipment can flow into the space inside the cover plate body through the electrolyte injection hole and the sealing cap, and the purpose of supplementing the electrolyte is achieved. Compared with the prior art, the process of replenishing the electrolyte by the top cover assembly provided by the first embodiment of the utility model is simple and easy to operate, and the efficiency of replenishing the electrolyte into the space inside the cover plate body can be greatly improved.
In addition, the first embodiment of the present invention further provides a battery, which includes a casing (not shown in the drawings), a battery core (not shown in the drawings) enclosed by the casing, and a top cover assembly for sealing the casing, where the top cover assembly is the top cover assembly of the above embodiment, and the liquid injection hole 11 on the top cover assembly is communicated with the inner cavity of the casing.
As shown in fig. 1-2, an explosion-proof valve 3 is further disposed on the top cover assembly, and the explosion-proof valve 3 is configured to open the explosion-proof valve when the gas pressure in the internal space of the cover body 1 exceeds the opening pressure of the explosion-proof valve, so as to release the gas in the internal space of the cover body 1, thereby preventing the battery from exploding. The cover plate body 1 is further provided with a first pole column 4 and a second pole column 5 which have different polarities at two ends in the length direction, and the first pole column 4 and the second pole column 5 are respectively electrically connected with pole pieces in the battery cell and having the same polarity.
According to the battery provided by the first embodiment of the utility model, the top cover assembly is the top cover assembly of the above embodiment, and when electrolyte inside the battery is consumed in the use process, the electrolyte can be supplemented to the inner cavity of the shell by the liquid supplementing sealing assembly, so that the service life of the battery is prolonged. And because the battery adopts the top cap subassembly of above-mentioned embodiment, can make the simple easy operation of process of replenishing electrolyte, can greatly improve the efficiency of replenishing electrolyte to the inner space of top cap subassembly.
Second embodiment
A second embodiment of the present invention provides a cap assembly and a battery, which are different from the first embodiment in that the sealing cap is disc-shaped, the first sealing ring groove is formed in the sealing cap, the elastic member is disposed around the first sealing ring groove, an inward end of the elastic member is connected to the sealing cap, and an outward end of the elastic member is fixed to an inner surface of the cap body.
The elastic member may be a single spring having an inner diameter greater than the first seal ring groove, and one end of the spring connected to the seal cap is disposed around the first seal ring.
The elastic component can also be a spring group consisting of two or more springs, the spring group surrounds the first sealing ring groove, and the adjacent two springs of the spring group are arranged at equal intervals along the periphery of the first sealing ring groove.
Third embodiment
A third embodiment of the present invention provides a cap assembly and a battery, which are different from the first embodiment in that the annular protrusion is disposed on a surface of the sealing cap facing the cap body, and the surface of the cap body facing the sealing cap is provided with the first sealing ring groove.
In the normal use state of the top cover assembly, the annular protrusion is inserted into the first sealing ring groove to seal the inner side opening of the liquid injection hole. In the process that the top cover assembly supplements electrolyte, the annular bulge is separated from the contact with the first sealing ring groove, the electrolyte injected into the electrolyte injection hole flows to the surface of the cover plate body towards the sealing cap through the second groove, and then flows into the space inside the cover plate body towards the surface of the cover plate body from the sealing cap, so that the battery core in the space inside the cover plate body is soaked.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A top cover assembly is characterized by comprising a cover plate body and a liquid supplementing sealing assembly, wherein a liquid injection hole is formed in the cover plate body and penetrates through the cover plate body; the liquid supplementing sealing assembly comprises an elastic piece and a sealing cap, the sealing cap is arranged in a space inside the cover plate body, one outward end of the elastic piece is fixed on the cover plate body, and one inward end of the elastic piece is connected with the sealing cap; the inboard surface of apron body with be equipped with on one of the sealing cap and encircle annotate the annular of liquid hole is protruding, the inboard surface of apron body with be equipped with on another in the sealing cap and encircle annotate the first sealed annular of liquid hole, the annular is protruding be used for insert as for first sealed annular is in order to seal annotate the liquid hole.
2. The overcap assembly of claim 1, wherein the annular protrusion is disposed on an inside surface of the cap body and the first sealing ring groove is disposed on the sealing cap.
3. The overcap assembly of claim 1, further including a sealing ring having a second annular sealing groove matching the shape of the annular protrusion, the annular protrusion being insertable into the second annular sealing groove, the sealing ring having an outer surface shape matching the first annular sealing groove, the sealing ring being adapted to be insertable into the first annular sealing groove.
4. The lid assembly of claim 1, wherein the sealing cap comprises a cap portion and a rod fixedly attached to a central portion of an outer surface of the cap portion, the first annular sealing groove is formed in the cap portion, and the rod extends into the liquid injection hole and is connected to an inward end of the elastic member.
5. The overcap assembly of claim 1, wherein the sealing cap is disk-shaped, the first annular sealing groove is disposed in the sealing cap, the resilient member is disposed around the first annular sealing groove, an inward end of the resilient member is connected to the sealing cap, and an outward end of the resilient member is secured to an inside surface of the cap body.
6. The cap assembly according to claim 1, wherein the pour hole comprises a first groove, a through hole and a second groove, the first groove penetrates through the outer side surface of the cap body, the second groove penetrates through the inner side surface of the cap body, the through hole penetrates through the bottom wall of the first groove and the bottom wall of the second groove, and the outward end of the elastic member is fixed to the bottom wall of the second groove.
7. The top cap assembly according to claim 3, wherein the first sealing ring groove comprises a liquid supplementing channel ring groove and a sealing plug ring groove which are sequentially communicated from outside to inside, the outward end of the liquid supplementing channel ring groove is communicated with the liquid injection hole, the inner diameter of the liquid supplementing channel ring groove is larger than that of the sealing plug ring groove, the outer surface shape of the sealing ring is matched with that of the sealing plug ring groove, and the sealing ring is used for being inserted into the sealing plug ring groove.
8. The cap assembly of claim 1, wherein the resilient member is a spring.
9. The overcap assembly of claim 3, wherein the sealing ring has a guide structure on an outer surface thereof for guiding the sealing ring into the first sealing ring groove.
10. A battery, including a casing, a battery core wrapped by the casing, and a top cover assembly for sealing the casing, wherein the top cover assembly is as claimed in any one of claims 1 to 9, and the liquid injection hole on the cover plate body is communicated with the inner cavity of the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122502286.1U CN216529092U (en) | 2021-10-18 | 2021-10-18 | Top cover assembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122502286.1U CN216529092U (en) | 2021-10-18 | 2021-10-18 | Top cover assembly and battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216529092U true CN216529092U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122502286.1U Active CN216529092U (en) | 2021-10-18 | 2021-10-18 | Top cover assembly and battery |
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| CN (1) | CN216529092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613486A (en) * | 2023-07-17 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Liquid injection safety device, liquid injection method and liquid injection system of battery |
-
2021
- 2021-10-18 CN CN202122502286.1U patent/CN216529092U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116613486A (en) * | 2023-07-17 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Liquid injection safety device, liquid injection method and liquid injection system of battery |
| CN116613486B (en) * | 2023-07-17 | 2023-11-17 | 宁德时代新能源科技股份有限公司 | Liquid injection safety device, liquid injection method and liquid injection system of battery |
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Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518107 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |
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