CN219419244U - Top cap subassembly and battery - Google Patents
Top cap subassembly and battery Download PDFInfo
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- CN219419244U CN219419244U CN202320689908.2U CN202320689908U CN219419244U CN 219419244 U CN219419244 U CN 219419244U CN 202320689908 U CN202320689908 U CN 202320689908U CN 219419244 U CN219419244 U CN 219419244U
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- Prior art keywords
- top cover
- section
- lower plastic
- groove
- plastic part
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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 relates to the technical field of batteries, in particular to a top cover assembly and a battery. This top cap subassembly includes top cap piece and lower plastic part, one of top cap piece and lower plastic part two includes the locating part, another of them is provided with and locating part looks adaptation recess, the locating part can peg graft in the recess, wherein, the recess includes leading-in section and spacing section, leading-in section and spacing section are connected by the opening of recess to the tank bottom direction of recess in proper order, the width of the longitudinal section of spacing section is by opening to the tank bottom direction increase gradually, realize lower plastic part and the better fixed effect of top cap piece, thereby prevent that lower plastic part and top cap piece from droing, and then realize the better insulating effect of top cap subassembly to the electric core. The battery provided by the utility model can better prevent the battery from being short-circuited by applying the top cover assembly, and has better safety.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a top cover assembly and a battery.
Background
The staff in battery technology field generally will install the insulating part below the top cap piece and be collectively referred to as lower plastic part, and current common lithium ion top cap subassembly comprises utmost point post, sealing washer, explosion-proof valve and lower plastic part etc.. Wherein the lower plastic part mainly plays roles of insulating the battery cell, fixing the battery cell and the like. The lower plastic part is assembled with the top cover sheet, the pole, the aluminum flake as part of the top cover assembly and is typically one piece.
In the prior art, the lower plastic part and the top cover piece are assembled together through the clamping fit, but the connection between the top cover piece and the lower plastic part is unstable, and the top cover piece and the lower plastic part are easy to fall off, so that the safety problems of battery short circuit and the like are caused.
Accordingly, there is a need for a top cap assembly and a battery to solve the above problems.
Disclosure of Invention
The utility model aims to provide a top cover assembly, which realizes a better fixing effect of a lower plastic part and a top cover sheet, thereby preventing the lower plastic part and the top cover sheet from falling off and further realizing a better insulating effect of the top cover assembly on an electric core.
Another object of the present utility model is to provide a battery, which can better prevent the battery from being shorted and has better safety.
In order to achieve the above object, the following technical scheme is provided:
the top cover assembly comprises a top cover plate and a lower plastic part, one of the top cover plate and the lower plastic part comprises a limiting part, the other one of the top cover plate and the lower plastic part is provided with a groove matched with the limiting part, and the limiting part can be inserted into the groove;
the groove comprises a leading-in section and a limiting section, wherein the leading-in section and the limiting section are sequentially connected from an opening of the groove to the groove bottom direction of the groove, and the width of the longitudinal section of the limiting section is gradually increased from the opening to the groove bottom direction. The better fixed effect of plastic part and top cap piece down is realized to prevent that plastic part and top cap piece from droing down, and then realize the better insulating effect of top cap subassembly to the electric core.
As a preferable scheme, the longitudinal section of the limiting section comprises two opposite arcs, the two arcs are arranged on two sides of the central line of the longitudinal section of the groove, and the circle center of the arc and the central line are arranged on two sides of the corresponding arc. The fastening performance of the connection of the top cover plate and the lower plastic part is further improved.
Preferably, the width of the longitudinal section of the insertion section decreases gradually from the opening to the groove bottom. The lead-in section is matched with the connecting part, thereby further improving the connection tightness of the top cover sheet and the lower plastic part 10.
Preferably, the cross section of the limiting section is circular, elliptical or polygonal. Prevent that the locating part from droing by the recess, and then further improve the stability that lower plastic part and top cap piece are connected.
As an optimal scheme, the lower plastic part and the top cover sheet are fixed in an ultrasonic welding mode. The limiting piece is melted in an ultrasonic welding mode to enable the solidified limiting piece to be tightly combined with the groove, so that the combination strength of the limiting piece and the groove is improved, and the connection strength between the lower plastic piece and the top cover piece is further improved.
Preferably, the lower plastic part comprises at least two plastic split bodies, and the at least two plastic split bodies are respectively fixed with the top cover sheet. The lower plastic part is arranged in a split mode, the length of each plastic part is shortened, the length-width ratio of each plastic part can be reduced, the manufacturing difficulty of each plastic part in injection molding is reduced, and the thickness of the lower plastic part can be made thinner.
Preferably, the thickness of the plastic split is 0.2 mm-0.3 mm. Through setting the lower plastic part split into a structural design of a plurality of plastic split bodies, the thickness of the plastic split bodies can reach 0.2 mm-0.3 mm, and then the energy density of the battery can be higher.
Preferably, the plastic split comprises:
the first main body corresponds to the explosion-proof piece preset on the top cover piece. The first main body can play a protective role on the explosion-proof sheet, and prevent that foreign matter from shielding the explosion-proof sheet in the shell from causing failure of the explosion-proof sheet.
Preferably, the plastic split further comprises:
the first main body is provided with a through hole, the through hole corresponds to a preset liquid injection hole on the top cover plate, one end, away from the top cover plate, of the through hole is provided with a baffle cover, and the side wall of the baffle cover is provided with a flow hole. When filling electrolyte, the retaining cover can play a role in buffering the electrolyte, so that the impact force received by the battery cell during the electrolyte filling is reduced.
The battery, including casing and electric core, still include foretell top cap subassembly, electric core holding is in the casing, the one end of casing is open setting, top cap subassembly sets up the open end of casing.
Compared with the prior art, the utility model has the beneficial effects that:
the top cover assembly comprises a top cover plate and a lower plastic part, wherein one of the top cover plate and the lower plastic part comprises a limiting part, the other one of the top cover plate and the lower plastic part is provided with a groove matched with the limiting part, the limiting part can be inserted into the groove, the groove comprises a leading-in section and a limiting section, the leading-in section and the limiting section are sequentially connected from an opening of the groove to the groove bottom direction of the groove, the width of the longitudinal section of the limiting section is gradually increased from the opening to the groove bottom direction, the better fixing effect of the lower plastic part and the top cover part is realized, the falling-off of the lower plastic part and the top cover part is prevented, and the better insulating effect of the top cover assembly on the battery cell is realized.
The battery provided by the utility model can better prevent the battery from being short-circuited by applying the top cover assembly, and has better safety.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.
Fig. 1 is a structural exploded view of a battery according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a lower plastic part and a top cover sheet according to an embodiment of the present utility model;
FIG. 3 is a schematic structural diagram of a lower plastic part according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a first main body of a lower plastic part according to an embodiment of the present utility model.
Reference numerals:
1000. a battery;
100. a top cover assembly; 200. a battery cell; 300. a housing;
10. a lower plastic part; 11. a body; 12. a limiting piece; 121. a limit part; 122. a connection part; 13. a weight-reducing mechanism; 131. a weight reduction groove; 132. a lightening hole; 14. plastic split; 141. a second body; 1411. a post hole; 142. a first body; 1421. a flow hole; 1422. ventilation holes; 1423. a blocking cover; 15. an abutting portion;
20. a top cover sheet; 21. a groove; 211. a limiting section; 212. an introduction section; 213. an opening; 214. a groove bottom; 22. a liquid injection hole;
30. a pole;
40. and a pole connection.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present utility model, the terms "upper," "lower," "left," "right," and the like are used for convenience of description and simplicity of operation based on the orientation or positional relationship shown in the drawings, and do not denote or imply that the apparatus or element in question must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
As shown in fig. 1, the present embodiment provides a battery 1000, where the battery 1000 includes a housing 300 and a battery cell 200, the battery cell 200 is accommodated in the housing 300, and the housing 300 performs better supporting and protecting functions on the battery cell 200. The battery 1000 further includes a top cap assembly 100, the top end of the housing 300 is provided with an opening, the top cap assembly 100 is provided at the opening end of the housing 300, and the top cap assembly 100 and the housing 300 form a closed space to encapsulate the battery cell 200.
As shown in fig. 1, the number of the battery cells 200 is two, and the two battery cells 200 are assembled by welding in a serial or parallel manner, and in other embodiments, the number of the battery cells 200 may be one, three or more, which is not limited herein.
Specifically, as shown in fig. 1, the top cap assembly 100 includes two poles 30, two pole connectors 40. One of the two poles 30 is a positive pole and the other is a negative pole; one of the two pole connectors 40 is a positive pole connector and the other is a negative pole connector. The positive pole of electricity core 200 passes through positive pole post connecting piece and is connected with the positive pole post, and the negative pole of electricity core 200 passes through negative pole post connecting piece and is connected with the negative pole post, and the post 30 top surface is connected with the consumer, realizes the power supply function of electricity core 200 to the consumer.
Further, the top cover assembly 100 further comprises a top cover piece 20 and an explosion-proof piece, the top cover piece 20 is provided with an explosion-proof hole, the explosion-proof piece is welded in the explosion-proof hole, when the top cover assembly is used, gas is generated in the shell 300, after the gas pressure in the shell 300 reaches the explosion-proof threshold value of the explosion-proof piece, the explosion-proof piece is broken, and the gas is discharged from the explosion-proof hole, so that the explosion of the shell 300 can be avoided.
As shown in fig. 1, the top cover assembly 100 further includes a lower plastic member 10, where the lower plastic member 10 is disposed at the lower end of the top cover sheet 20 and connected to the top cover sheet 20, and the lower plastic member 10 mainly plays roles of insulating the battery cell 200 and fixing the battery cell 200.
During assembly, the positive electrode post connecting piece and the negative electrode post connecting piece are connected with the battery cell 200, then the positive electrode post connecting piece and the negative electrode post connecting piece are respectively connected with the positive electrode post and the negative electrode post in a welding mode, then the two electrode posts 30 penetrate through the lower plastic part 10 and the top cover piece 20, the battery cell 200 is placed in the shell 300, the top cover assembly 100 is sealed with the shell 300, and the battery 1000 is obtained through a series of procedures of liquid injection, formation, capacity and the like.
In the prior art, the lower plastic part 10 and the top cover piece 20 are assembled together by adopting the clamping fit, but the connection between the top cover piece 20 and the lower plastic part 10 is not firm, and the top cover piece 20 and the lower plastic part 10 are easy to fall off, so that the insulating effect on the battery cell 200 is lost, and the safety problems such as short circuit of the battery 1000 are caused.
In order to solve the above problem, as shown in fig. 2, the lower plastic part 10 includes a body 11 and a limiting part 12, the limiting part 12 is disposed on the body 11, a groove 21 matched with the limiting part 12 is disposed on the top cover piece 20, and the limiting part 12 can be inserted into the groove 21, so as to realize tight connection between the lower plastic part 10 and the top cover piece 20. In other embodiments, the limiting member 12 may also be disposed on the top cover 20, and the recess 21 is disposed on the body 11 of the lower plastic member 10.
Specifically, as shown in fig. 2, the groove 21 includes a leading-in section 212 and a limiting section 211, the leading-in section 212 and the limiting section 211 are sequentially connected from an opening 213 of the groove 21 to a groove bottom 214 of the groove 21, and a width of a longitudinal section of the limiting section 211 gradually increases from the opening 213 to the groove bottom 214. The limiting member 12 includes a limiting portion 121 and a connecting portion 122, the connecting portion 122 is connected with the body 11, the limiting portion 121 is connected with the connecting portion 122, the shape of the limiting portion 121 is matched with that of the limiting section 211, and the shape of the connecting portion 122 is matched with that of the guiding section 212. During assembly, the limiting part 121 sequentially passes through the leading-in section 212 and the limiting section 211, the limiting part 121 deforms relative to the top cover piece 20, and is extruded into the limiting section 211, so that the limiting piece 12 is inserted into the groove 21, the top cover piece 20 is further connected with the lower plastic piece 10 more tightly, the lower plastic piece 10 and the top cover piece 20 are prevented from falling off, and the stability of the connection between the lower plastic piece 10 and the top cover piece 20 is improved.
As shown in fig. 2, the width of the longitudinal section of the lead-in section 212 gradually decreases from the opening 213 to the groove bottom 214, and the lead-in section 212 is matched with the connecting portion 122, thereby further improving the fastening of the connection of the top cover sheet 20 and the lower plastic member 10.
Preferably, the limiting piece 12 is in interference fit with the groove 21, the limiting piece 12 and the groove 21 in interference fit enable the connection between the top cover piece 20 and the lower plastic piece 10 to be tighter, strength of the matched position is guaranteed, stability of connection between the lower plastic piece 10 and the top cover piece 20 is further improved, and fixing and insulating functions of the whole lower plastic piece 10 on the battery cell 200 can be effectively guaranteed.
Specifically, as shown in fig. 2, the longitudinal section of the limiting section 211 includes two arcs that are oppositely disposed, the two arcs are disposed on two sides of the center line of the longitudinal section of the groove 21, and the center of the arc and the center line of the longitudinal section of the groove 21 are disposed on two sides of the corresponding arc, so that the fastening performance of the connection between the top cover 20 and the lower plastic part 10 can be further improved.
Further, the cross section of the limiting section 211 is circular, elliptical or polygonal, which can prevent the limiting member 12 from falling off from the groove 21, thereby further improving the connection stability of the lower plastic member 10 and the top cover sheet 20.
The number of the limiting pieces 12 is multiple, the limiting pieces 12 are arranged on the opposite surfaces of the lower plastic piece 10 and the top cover piece 20 at intervals, the tightness of connection between the top cover piece 20 and the lower plastic piece 10 can be further improved, and meanwhile, the lower plastic piece 10 can be prevented from rotating relative to the top cover piece 20, so that a certain limiting effect is achieved.
Further, the lower plastic part 10 and the top cover sheet 20 are fixed by adopting an ultrasonic welding mode, and the limit part 12 is melted by adopting an ultrasonic welding mode so as to tightly combine the solidified limit part 12 with the groove 21, thereby improving the combination strength of the limit part 12 and the groove 21 and further improving the connection strength between the lower plastic part 10 and the top cover sheet 20. The ultrasonic welding has the advantages of high welding speed, high strength, good sealing performance, low cost, cleanness, no pollution, no damage to workpieces, welding Cheng Wending and the like.
As shown in fig. 3, the lower plastic part 10 includes three plastic parts 14, and the three plastic parts 14 are respectively fixed to the top cover sheet 20. In other embodiments, the number of plastic segments 14 may be two, four or more, and may be adaptively selected according to practical needs.
The lower plastic part 10 is arranged in a split mode, the length of each plastic split 14 is shortened, the length-width ratio of each plastic split 14 can be reduced, the manufacturing difficulty of injection molding of each plastic split 14 is reduced, the thickness of the lower plastic part 10 can be further reduced, the influence of the lower plastic part 10 on the height of the battery cell 200 in the shell 300 is reduced, and the energy density of the battery 1000 can be further improved; meanwhile, when the lower plastic part 10 is manufactured in a thinner mode, the split type design enables the finished product yield to be higher, the manufacturing difficulty to be reduced, meanwhile, the reduction of unqualified products enables the manufacturing cost to be reduced, and good economic benefits are achieved.
Preferably, the thickness of the plastic part 14 can reach 0.2 mm-0.3 mm by the structural design that the lower plastic part 10 is arranged as a plurality of plastic parts 14 in a split manner.
Specifically, as shown in fig. 3, the plastic split 14 includes a second body 141, and a pole hole 1411 is formed in the second body 141. The number of the second bodies 141 is two, and referring to fig. 2, the two second bodies 141 are symmetrically arranged along the length direction of the top cover sheet 20, the positive and negative poles are in one-to-one correspondence with the two second bodies 141, and the poles 30 pass through the corresponding pole holes 1411. One of the two second bodies 141 is a plastic under the positive electrode, a post hole 1411 of the plastic under the positive electrode is a post hole, and the positive post passes through the post hole and is fixed with the post connecting piece; the other of the two second bodies 141 is a negative electrode lower plastic, and a post hole 1411 of the negative electrode lower plastic is a negative post hole, through which the negative post passes and is fixed with the negative post connector.
Preferably, the two second bodies 141 have the same shape and size, and can be produced by the same set of molds during injection molding, thereby reducing the production cost.
As shown in fig. 3, the plastic part 14 further includes a first body 142, the first body 142 is fixed to the top cover sheet 20, and the first body 142 corresponds to the explosion-proof sheet on the top cover sheet 20. If high-pressure gas is generated in the battery cell 200, the high-pressure gas can burst the explosion-proof sheet and is discharged from the casing 300, and the first main body 142 can protect the explosion-proof sheet, so that foreign matters in the casing 300 are prevented from shielding the explosion-proof sheet, and the explosion-proof sheet is prevented from failing.
Considering that the battery 1000 is injected at high pressure, the electrolyte is injected into the case 300 at a too high speed to easily impact the battery cell 200. The first body 142 is provided with a through hole aligned with the liquid injection hole 22 on the top cover 20, one end of the through hole facing the inside of the housing 300 is integrally formed with a blocking cover 1423, and a side wall of the blocking cover 1423 is provided with a flow hole 1421. When the high-pressure injection is performed into the case 300, the blocking cover 1423 can play a role in buffering the electrolyte, and reduce the impact force applied to the battery cell 200 during the injection.
As shown in fig. 3 and 4, the first body 142 and the second body 141 are integrally formed with the contact portion 15, and the bottom surfaces of the contact portion 15 are respectively abutted against the battery cell 200, so as to fix the battery cell 200 and prevent the battery cell 200 from shaking in the housing 300. The abutting portions 15 on the two second main bodies 141 are symmetrically arranged at one ends of the two second main bodies 141, which deviate from each other, the abutting portions 15 of the first main bodies 142 are located at the middle positions of the first main bodies 142, and the distances between the two adjacent abutting portions 15 are equal, so that the abutting pressure of the battery cell 200 in the horizontal direction is uniformly applied, and the battery cell 200 is more stable in the shell.
The weight-reducing mechanism 13 is arranged on the abutting part 15 of the lower plastic part 10, the weight-reducing mechanism 13 comprises a weight-reducing groove 131, the weight-reducing groove 131 extends along the vertical direction, the whole strength of the lower plastic part 10 is ensured, the weight of the lower plastic part 10 is reduced, the weight of the battery 1000 is further reduced, raw materials used for producing the lower plastic part 10 are reduced, and the production cost is saved. The weight reducing mechanism 13 further includes weight reducing holes 132, the weight reducing holes 132 are uniformly formed in the wall surface of the lower plastic part 10, the weight reducing holes 132 penetrate the lower plastic part 10 in the vertical direction, and the weight is reduced while the gas is discharged in an auxiliary manner.
Note that in the description of this specification, a description referring to terms "some embodiments", "other embodiments", and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing description is only of the preferred embodiments of the utility model and the technical principles employed. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.
Claims (10)
1. The top cover assembly is characterized by comprising a top cover plate (20) and a lower plastic part (10), wherein one of the top cover plate and the lower plastic part comprises a limiting part (12), the other top cover plate and the lower plastic part are provided with a groove (21) matched with the limiting part (12), and the limiting part (12) can be inserted into the groove (21);
the groove (21) comprises a leading-in section (212) and a limiting section (211), the leading-in section (212) and the limiting section (211) are sequentially connected from an opening (213) of the groove (21) to the groove bottom (214) of the groove (21), and the width of the longitudinal section of the limiting section (211) is gradually increased from the opening (213) to the groove bottom (214).
2. The top cover assembly according to claim 1, wherein the longitudinal section of the limiting section (211) comprises two opposite arcs, the two arcs are arranged on two sides of a center line of the longitudinal section of the groove (21), and the center of the arc and the center line are arranged on two sides of the corresponding arc.
3. The roof assembly according to claim 1, characterized in that the width of the longitudinal section of the lead-in section (212) decreases gradually from the opening (213) to the groove bottom (214).
4. The header assembly of claim 1, wherein the limiting section (211) is circular, elliptical or polygonal in cross-section.
5. The roof assembly according to claim 1, wherein the lower plastic member (10) is ultrasonically welded to the roof sheet (20).
6. The roof assembly according to any one of claims 1 to 5, wherein the lower plastic part (10) comprises at least two plastic parts (14), and at least two plastic parts (14) are respectively fixed with the roof sheet (20).
7. The header assembly of claim 6, wherein the plastic split (14) has a thickness of 0.2mm to 0.3mm.
8. The cap assembly of claim 6, wherein the plastic split (14) comprises:
the first main body (142), the first main body (142) corresponds with the explosion-proof piece preset on the top cover piece (20).
9. The top cover assembly according to claim 8, wherein the first main body (142) is provided with a through hole, the through hole corresponds to a liquid injection hole (22) preset in the top cover sheet (20), one end of the through hole away from the top cover sheet (20) is provided with a blocking cover (1423), and a side wall of the blocking cover (1423) is provided with a flow hole (1421).
10. The battery, including casing (300) and electric core (200), characterized in that still includes the top cap subassembly of any one of claims 1 ~ 9, electric core (200) holding is in casing (300), the one end of casing (300) is open setting, the top cap subassembly sets up the open end of casing (300).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320689908.2U CN219419244U (en) | 2023-03-31 | 2023-03-31 | Top cap subassembly and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320689908.2U CN219419244U (en) | 2023-03-31 | 2023-03-31 | Top cap subassembly and battery |
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| Publication Number | Publication Date |
|---|---|
| CN219419244U true CN219419244U (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320689908.2U Active CN219419244U (en) | 2023-03-31 | 2023-03-31 | Top cap subassembly and battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116706456A (en) * | 2023-08-07 | 2023-09-05 | 深圳海辰储能控制技术有限公司 | Lower plastic part, end cover assembly, energy storage device and electric equipment |
| CN116799390A (en) * | 2023-08-29 | 2023-09-22 | 深圳海辰储能控制技术有限公司 | Lower plastic, end cover assembly, energy storage device and energy storage system |
-
2023
- 2023-03-31 CN CN202320689908.2U patent/CN219419244U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116706456A (en) * | 2023-08-07 | 2023-09-05 | 深圳海辰储能控制技术有限公司 | Lower plastic part, end cover assembly, energy storage device and electric equipment |
| CN116706456B (en) * | 2023-08-07 | 2023-10-03 | 深圳海辰储能控制技术有限公司 | Lower plastic part, end cover assembly, energy storage device and electric equipment |
| CN116799390A (en) * | 2023-08-29 | 2023-09-22 | 深圳海辰储能控制技术有限公司 | Lower plastic, end cover assembly, energy storage device and energy storage system |
| CN116799390B (en) * | 2023-08-29 | 2023-12-26 | 深圳海辰储能控制技术有限公司 | Lower plastic, end cover assembly, energy storage device and energy storage system |
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