CN220021330U

CN220021330U - Cover plate assembly and battery

Info

Publication number: CN220021330U
Application number: CN202321542430.7U
Authority: CN
Inventors: 方振兴; 孙飞; 郭家豪; 陈贤阳; 苑丁丁
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2023-06-15
Filing date: 2023-06-15
Publication date: 2023-11-14
Anticipated expiration: 2033-06-15

Abstract

The utility model provides a cover plate component and a battery, which are arranged on a shell, wherein the shell is provided with a containing cavity, a core bag is arranged in the containing cavity, and the cover plate component comprises: the cover plate is arranged on the shell and is provided with a first mounting hole communicated with the accommodating cavity; the monitoring assembly comprises a collecting piece, a connecting piece and a fixing piece; wherein, gather the piece and be located and accept the intracavity and be used for obtaining the parameter information in the casing, the mounting is installed on the apron and is equipped with the second mounting hole of intercommunication first mounting hole, and the one end of connecting piece passes first mounting hole and second mounting hole and with gather piece electric connection, the other end of connecting piece exposes in the second mounting hole. Through setting up monitoring component, can the inside data of real-time supervision battery to respond measures is done to the real-time condition.

Description

Cover plate assembly and battery

Technical Field

The utility model relates to the technical field of batteries, in particular to a cover plate assembly and a battery.

Background

The lithium battery has the advantages of small volume, high energy density, long service life, environmental protection and the like, and is widely applied to industries such as automobiles, electronic products, energy storage systems and the like. The lithium battery can generate heat and gas due to charge and discharge circulation in the use process, a great amount of heat can cause great trouble to the use and maintenance of the lithium battery, and the generated gas can cause the expansion of the battery core. The battery in the related art cannot monitor data inside the battery, such as temperature and pressure, in real time, and thus it is difficult to take a reaction measure against a real-time situation.

Disclosure of Invention

The embodiment of the utility model provides a cover plate assembly and a battery, which can improve the technical problem that the battery in the related technology cannot monitor the data in the battery in real time.

In a first aspect, embodiments of the present utility model provide a cover assembly mounted to a housing, the housing having a receiving cavity in which a core pack is mounted, the cover assembly comprising:

the cover plate is arranged on the shell and is provided with a first mounting hole communicated with the accommodating cavity;

the monitoring assembly comprises a collecting piece, a connecting piece and a fixing piece;

the collecting piece is located in the accommodating cavity and used for acquiring parameter information in the shell, the fixing piece is installed on the cover plate and provided with a second installation hole communicated with the first installation hole, one end of the connecting piece penetrates through the first installation hole and the second installation hole and is electrically connected with the collecting piece, and the other end of the connecting piece is exposed to the second installation hole.

In one embodiment, the connector comprises:

a base body portion located in the second mounting hole;

a first connection portion connected to an end of the base portion facing away from the core pack and exposed to the second mounting hole;

the second connecting part is connected to the other end of the base body part, which is close to the core bag, and extends into the first mounting hole, and is used for electrically connecting the collecting piece and the first connecting part.

In an embodiment, the outer side of the base portion is provided with a first protrusion, the connecting piece comprises a first sealing piece, and the first sealing piece is sleeved on the outer side of the base portion and is connected between the first protrusion and the fixing piece.

In one embodiment, the fixing member includes:

the first fixing part is arranged around the base body part, is positioned at one side of the first bulge, which is away from the core bag, and is provided with the second mounting hole;

the second fixing part is arranged around the base body part and connected with the cover plate; and

the transition part is connected between the outer periphery of the first fixing part and the inner periphery of the second fixing part, and is provided with a through hole communicated with the second mounting hole;

the first sealing piece fills the through hole and is laid on the outer side surfaces of the first fixing portion, the second fixing portion and the transition portion.

In an embodiment, a second sinking portion is arranged on the cover plate, the second sinking portion is arranged around the periphery of the first mounting hole, and the second fixing portion is located in the second sinking portion and is connected with the cover plate in a welding mode.

In one embodiment, the connector and the fixture are integrally injection molded.

In an embodiment, the connecting piece includes a plurality of mutually insulating sub-connecting pieces, be equipped with on the apron with a plurality of sub-connecting pieces correspond a plurality of first mounting hole, be equipped with on the mounting with a plurality of sub-connecting pieces correspond a plurality of second mounting hole, every sub-connecting piece keep away from gather one end expose in corresponding second mounting hole, every sub-connecting piece the other end stretches into corresponding first mounting hole with gather piece electric connection.

In one embodiment, the cover plate assembly further comprises:

the second sealing piece is arranged in the plurality of second mounting holes, is positioned between the fixing piece and the plurality of sub-connectors and is provided with a plurality of first openings; and

the second sealing piece is arranged in the plurality of first mounting holes, is positioned between the plurality of sub-connectors and the cover plate and is provided with a plurality of second openings;

the first opening is formed in the first end of each sub-connecting piece, and the second opening is formed in the second end of each sub-connecting piece.

In an embodiment, a second protrusion is provided on the outer side of the sub-connector, the second protrusion being located between the second seal and the third seal.

In one embodiment, the sub-connector is a metal insert.

In an embodiment, the hole diameter of the first mounting hole gradually decreases from the cover plate to the direction of the collecting member, the cover plate assembly further comprises a fourth sealing member located in the first mounting hole, the fourth sealing member is provided with a third mounting hole, the connecting member penetrates through the third mounting hole, and the fixing member is covered on the fourth sealing member.

In an embodiment, the cover plate assembly further comprises a lower plastic, a fourth mounting hole is formed in the lower plastic, a first sinking portion is formed in the hole wall of the fourth mounting hole, a part of the cover plate is clamped in the first sinking portion, and the connecting piece passes through the fourth mounting hole and is electrically connected with the collecting piece.

In one embodiment, the connector is a circuit board.

In a second aspect, an embodiment of the present utility model further provides a battery, including a housing, a core pack, and a cover assembly as set forth in any one of the preceding claims, the housing having a receiving cavity, the core pack being mounted in the receiving cavity.

In an embodiment, the collecting piece is attached to the core bag.

The embodiment of the utility model has the beneficial effects that:

in the embodiment of the utility model, the monitoring assembly is arranged, so that the acquisition part in the monitoring assembly can acquire the parameter information in the shell, the parameter information acquired by the acquisition part is sent to external equipment through the connecting part in the monitoring assembly, and the fixing part in the monitoring assembly can well fix the connecting part on the cover plate, thereby being capable of monitoring the data in the battery in real time, and further taking response measures aiming at real-time conditions.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a cover plate and a monitoring assembly according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a cover plate and its monitoring assembly provided by an embodiment of the present utility model;

FIG. 3 is an exploded view of a monitoring assembly provided by an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a cover plate and a monitoring assembly according to an embodiment of the present utility model;

FIG. 5 is an exploded view of a cover plate and its monitoring assembly provided by an embodiment of the present utility model;

FIG. 6 is a schematic structural view of a fastener according to an embodiment of the present utility model;

FIG. 7 is a cross-sectional view of a fastener provided by an embodiment of the present utility model;

FIG. 8 is a schematic diagram of a cover plate and a monitoring assembly according to an embodiment of the present utility model;

FIG. 9 is an exploded view of a cover plate and its monitoring assembly provided by an embodiment of the present utility model;

FIG. 10 is an exploded view of a monitoring assembly provided by an embodiment of the present utility model;

fig. 11 is a schematic structural view of a shell and a core pack according to an embodiment of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.

The lithium battery has the advantages of small volume, high energy density, long service life, environmental protection and the like, and is widely applied to industries such as automobiles, electronic products, energy storage systems and the like. The lithium battery can generate heat and gas due to charge and discharge circulation in the use process, a great amount of heat can cause great trouble to the use and maintenance of the lithium battery, and the generated gas can cause the expansion of the battery core. In the related art, a heat dissipation system is arranged in the battery, and accumulated heat is dissipated through the heat dissipation system, however, the heat dissipation system only can passively dissipate heat, cannot obtain information such as temperature and pressure in the battery, cannot monitor the temperature and the pressure in the battery in real time, and therefore reaction measures are difficult to take for real-time conditions.

As shown in fig. 1, 2 and 10, an embodiment of the present utility model provides a cover assembly mounted to a housing 101, the cover assembly including a cover 103 and a monitoring assembly.

The housing 101 has a receiving cavity for receiving the core pack 102. The core pack 102 is fixedly disposed in the accommodating cavity. An opening 113 communicating with the housing chamber is provided on one side of the housing 101. The cover plate 103 is mounted on the housing 101, specifically, the cover plate 103 is covered on one side of the housing 101 where the opening 113 is provided. The cover plate 103 is provided with a first mounting hole 104 communicated with the accommodating cavity.

The monitoring assembly includes a collection member 240, a connector member 210, and a fixture member 220. The collecting member 240 is located in the accommodating cavity, and the collecting member 240 is configured to obtain parameter information in the housing 101. The parameter information includes the temperature of the core pack 102 and the pressure in the housing 101, wherein the pressure refers to the pressure of the gas in the housing 101 to the housing 101. The fixing member 220 is mounted on the cover plate 103 and provided with a second mounting hole 224 communicating with the first mounting hole 104. The connector 210 passes through the first mounting hole 104 and the second mounting hole 224. One end of the connecting piece 210 is electrically connected to the collecting piece 240, and the other end of the connecting piece 210 is exposed to the second mounting hole 224 to transmit the parameter information collected by the collecting piece 240 to an external device.

In the utility model, by arranging the monitoring component, the acquisition part 240 in the monitoring component can acquire the parameter information in the shell 101, the parameter information acquired by the acquisition part 240 is sent to external equipment through the connecting part 210 in the monitoring component, and the fixing part 220 in the monitoring component can well fix the connecting part 210 on the cover plate 103, so that the data in the battery can be monitored in real time, and further, a response measure is made for the real-time situation.

As shown in fig. 1, 2 and 11, in one embodiment, a cover assembly is mounted to the housing 101, and the cover assembly includes a cover 103 and a monitoring assembly. The housing 101 has a receiving cavity, and the core pack 102 is fixedly disposed in the receiving cavity. An opening 113 communicating with the housing chamber is provided on one side of the housing 101. The cover plate 103 is covered on one side of the housing 101 where the opening 113 is provided. The cover plate 103 is provided with a first mounting hole 104 communicated with the accommodating cavity.

The monitoring assembly includes a collection member 240, a connector member 210, and a fixture member 220. The collecting member 240 is located in the accommodating cavity, and the collecting member 240 is configured to obtain parameter information in the housing 101. The parameter information includes the temperature of the core pack 102, the pressure within the housing 101. The collecting member 240 includes a plurality of sensors 241 and a plurality of connection lines 242, and the plurality of sensors 241 include at least a temperature sensor and a pressure sensor, and the plurality of connection lines 242 are used for connecting the sensors 241 and the connecting member 210. The fixing member 220 is mounted on the cover plate 103 and provided with a second mounting hole 224 communicating with the first mounting hole 104. The connector 210 passes through the first mounting hole 104 and the second mounting hole 224. One end of the connector 210 is electrically connected to the collecting element 240 (connecting line 242), and the other end of the connector 210 is exposed to the second mounting hole 224 to transmit the parameter information collected by the collecting element 240 to an external device. In some embodiments, the sensor 241 is attached to the core pack 102.

As shown in fig. 3, the connector 210 includes a base portion 211, a first connection portion 212, and a second connection portion 213. The base portion 211 is positioned in the second mounting hole 224. The first connection portion 212 is connected to an end of the base portion 211 facing away from the core pack 102, and the first connection portion 212 is exposed to the second mounting hole 224. The second connecting portion 213 is connected to the other end of the base portion 211 near the core pack 102, and the second connecting portion 213 extends into the first mounting hole 104. The second connection portion 213 is configured to electrically connect the connection line 242 and the first connection portion 212, and the first connection portion 212 is configured to connect with an external device, that is, serve as a connection terminal, and transfer information collected by the collection unit 240 to the external device.

In some embodiments, a communication channel is provided in the base portion 211, one end of the second connecting portion 213 extends into the first mounting hole 104 and is connected to the collecting member 240, the other end of the second connecting portion 213 is connected to the first connecting portion 212 in the communication channel, and one end of the first connecting portion 212 is exposed to the second mounting hole 224 so as to be convenient for connection of external devices.

In some embodiments, the connector 210 may transmit information via wireless transmission in addition to the wired connection. A wireless signal module is disposed in the first connection portion 212 to send the parameter information to an external device in a wireless transmission manner, where the wireless module may include a radio frequency chip.

In some embodiments, the outer side of the base portion 211 is provided with a first protrusion 214, and the connector 210 includes a first seal 231. The fixing member 220 includes a first fixing portion 221, a second fixing portion 222, and a transition portion 223. The first fixing portion 221 is disposed around the base portion 211, the first fixing portion 221 is located at a side of the first protrusion 214 facing away from the cover plate 103, and the second mounting hole 224 is formed in the first fixing portion 221. The second fixing portion 222 is disposed around the base portion 211 and connected to the cover 103. The transition portion 223 is connected between the outer circumference of the first fixing portion 221 and the inner circumference of the second fixing portion 222, and the transition portion 223 is provided with a through hole communicating with the second mounting hole 224.

The first sealing member 231 is sleeved on the outer side of the base portion 211 and is connected between the first protrusion 214 and the fixing member 220. Specifically, the first sealing member 231 fills the through hole, the space between the first protrusion 214 and the cover plate 103, and the space between the first protrusion 214 and the first fixing portion 221, the second fixing portion 222, and the transition portion 223. Since the first seal 231 is filled between the above-mentioned components, a good insulating sealing effect is achieved.

In some embodiments, the first sealing member 231 is integrally formed by injection molding, and the first sealing member 231 is further laid on the outer side surfaces of the first fixing portion 221, a part of the second fixing portion 222 and the transition portion 223, so as to protect the parts of the parts on which the first sealing member 231 is laid from corrosion. In other embodiments, the first sealing member 231 is laid on the entire outer side of the second fixing portion 222, that is, the outer side of the welding portion between the second fixing portion 222 and the cover plate 103 is also provided with the first sealing member 231, so that all the outer sides of the fixing member 220 are protected by the first sealing member 231.

In some embodiments, the cover plate 103 is provided with a second countersink 111, the second countersink 111 is disposed around the perimeter of the first mounting hole 104, and the second fixing portion 222 is located in the second countersink 111 and is welded to the cover plate 103. In some embodiments, the side wall of the second fixing portion 222 abuts against the side wall of the second sinking portion 111, so that the second sinking portion 111 limits the second fixing portion 222, and the fixing between the second fixing portion 222 and the cover plate 103 in the horizontal direction is further reinforced while the second fixing portion 222 is welded with the cover plate 103. In some embodiments, the second fixing portion 222 is disposed in the second sinking portion 111, and a top surface of the second fixing portion 222 is flush with a top surface of the second sinking portion 111, so as to improve smoothness of a connection between the cover 103 and the second fixing portion 222.

In some embodiments, the housing 101 is further provided with a post 105, a filling hole 106, an explosion-proof valve 107, and the like. The cover assembly further comprises a lower plastic 109, the lower plastic 109 is disposed on one side of the cover 103 away from the first connection portion 212, and a plurality of fourth mounting holes 110 corresponding to the pole 105 and the first mounting holes 104 are formed in the lower plastic 109.

In some embodiments, the first seal 231, the first fixation portion 221, a portion of the second fixation portion 222, the transition portion 223, and the fixation member 220 are integrally injection molded. Specifically, the above components (except the first seal 231) are combined and placed in an injection mold, and an injection molding material is injected into the injection mold, and the injection molding material is solidified to form the first seal 231 capable of fixing the above structure. The first sealing member 231, the first fixing portion 221, part of the second fixing portion 222, the transition portion 223, and the fixing member 220 are integrally injection molded, so that the above structure can be preassembled, and the assembly is performed and then mounted to the cover plate 103, thereby improving the mounting speed.

As shown in fig. 4, 5, 6, 7 and 11, in one embodiment, a cover assembly is mounted to the housing 101, the cover assembly including a cover 103 and a monitoring assembly. The housing 101 has a receiving cavity, and the core pack 102 is fixedly disposed in the receiving cavity. An opening 113 communicating with the housing chamber is provided on one side of the housing 101. The cover plate 103 is covered on one side of the housing 101 where the opening 113 is provided. The cover plate 103 is provided with a first mounting hole 104 communicated with the accommodating cavity.

The monitoring assembly includes a collection member 240, a connector member 210, and a fixture member 220. The collecting member 240 is located in the accommodating cavity, and the collecting member 240 is configured to obtain parameter information in the housing 101. The parameter information includes the temperature of the core pack 102, the pressure within the housing 101. The collecting member 240 includes a plurality of sensors 241 and a plurality of connection lines 242, and the plurality of sensors 241 include at least a temperature sensor and a pressure sensor, and the plurality of connection lines 242 are used to connect the sensors 241 and the connecting member 210. The fixing member 220 is mounted on the cover plate 103 and provided with a second mounting hole 224 communicating with the first mounting hole 104. The connector 210 passes through the first mounting hole 104 and the second mounting hole 224. One end of the connecting piece 210 is electrically connected to the collecting piece 240, and the other end of the connecting piece 210 is exposed to the second mounting hole 224 to transmit the parameter information collected by the collecting piece 240 to an external device. In some embodiments, the sensor 241 is attached to the core pack 102.

The connector 210 includes a plurality of sub-connectors 215 that are insulated from one another. The cover plate 103 is provided with a plurality of first mounting holes 104 corresponding to the plurality of sub-connectors 215, and the fixing member 220 is provided with a plurality of second mounting holes 224 corresponding to the plurality of sub-connectors 215. One end of each sub-connector 215 far away from the collecting element 240 is exposed to the corresponding second mounting hole 224, and the other end of each sub-connector 215 extends into the corresponding first mounting hole 104 and is electrically connected to the connecting wire 242. Each of the sub-connectors 215 is insulated from each other, so that each of the sub-connectors 215 can transmit different signals, and thus the connector 210 can transmit a plurality of different signals at the same time without interference between the different signals.

In some embodiments, a second countersink 111 is provided on the cover 103, and the second countersink 111 is disposed around the first mounting hole 104. The fixing member 220 includes a first fixing portion 221 and a second fixing portion 222. The first fixing portion 221 is provided with a plurality of second mounting holes 224, the second fixing portion 222 is disposed around the first fixing portion 221 and located in the second sinking portion 111, and an outer periphery of the second fixing portion 222 extends to be welded to the cover plate 103.

In some embodiments, the cover plate assembly further includes a second seal 232 and a third seal 233. The second sealing member 232 is located between the first fixing portion 221 and the plurality of sub-connectors 215. The second sealing member 232 is provided with a plurality of first bosses, and each first boss is provided with a plurality of first openings communicated with the second mounting hole 224. Each of the first bosses is mounted in a plurality of the second mounting holes 224. One end of the sub-connector 215 is disposed in the first opening and exposed to the corresponding first opening, so as to insulate the sub-connector 215 from the fixing member 220. The second seal 232 is located between the plurality of sub-connectors 215 and the cover plate 103. The third sealing member 233 is provided with a plurality of second bosses, and each of the second bosses is provided with a plurality of second openings. Each of the second bosses is mounted in a plurality of the first mounting holes 104. The other end of the sub-connector 215 is disposed in the second opening and electrically connected to the collecting element 240, so that the sub-connector 215 is insulated from the cover 103. With the above arrangement, the connector 210 can be provided to be insulated from the fixing member 220 and the cover 103.

In some embodiments, a second protrusion is provided on the outer side of the sub-connector 215, the second protrusion being located between the second seal 232 and the third seal 233. Specifically, the second sealing member 232 is provided with a plurality of accommodating grooves, each accommodating groove is disposed around a perimeter of one of the first openings, the second protrusion of each sub-connector 215 is located in the corresponding accommodating groove, and the second protrusion is in abutting fit with and insulated from the first fixing portion 221 through the second sealing member 232. In some embodiments, the second protrusion has a size that is greater than the diameter of the second aperture to be retained by the third seal 232. With the above arrangement, the third seal 232 can be securely restrained between the second seal 232 and the third seal 233.

In some embodiments, the housing 101 is further provided with a post 105, a filling hole 106, an explosion-proof valve 107, and the like. The cover assembly further comprises a lower plastic 109, the lower plastic 109 is disposed on one side of the cover 103 away from the fixing piece 220, and a plurality of fourth mounting holes 110 corresponding to the pole 105 and the first mounting holes 104 are formed in the lower plastic 109.

In some embodiments, the sub-connector 215 comprises a plug connector including, but not limited to, a metal plug, such as a metal pin.

As shown in fig. 8, 9, 10, and 11, in one embodiment, a cover assembly is mounted to the housing 101, the cover assembly including a cover 103 and a monitoring assembly. The housing 101 has a receiving cavity, and the core pack 102 is fixedly disposed in the receiving cavity. An opening 113 communicating with the housing chamber is provided on one side of the housing 101. The cover plate 103 is covered on one side of the housing 101 where the opening 113 is provided. The cover plate 103 is provided with a first mounting hole 104 communicated with the accommodating cavity.

The diameter of the first mounting hole 104 gradually decreases from the cover plate 103 toward the collecting member 240. The cover plate assembly further comprises a fourth sealing member 234 located in the first mounting hole 104, the shape of the fourth sealing member 234 corresponds to the shape of the first mounting hole 104, and the fourth sealing member 234 is in interference connection with the wall of the first mounting hole 104. The fourth sealing member 234 is provided with a third mounting hole, and the fourth sealing member 234 has elasticity, so that the connecting member 210 is disposed behind the fourth sealing member 234, and the first sealing member 231 can press the fourth sealing member 234, thereby ensuring good stability and sealing performance.

The cover plate 103 is provided with a second countersink 111, and the second countersink 111 is arranged around the periphery of the first mounting hole 104. The fixing piece 220 is located in the second sinking portion 111 and covers the sealing piece, and an outer periphery of the fixing piece 220 is connected to the cover plate 103.

In some embodiments, the cover assembly further includes a lower plastic 109, the lower plastic 109 is provided with a fourth mounting hole 110, a wall of the fourth mounting hole is provided with a first countersink 112, a portion of the cover 103 is located in the first countersink 112 to prevent relative displacement between the cover 103 and the first countersink 112, and the connecting piece 210 is electrically connected with the connecting wire 242 through the fourth mounting hole 110.

Embodiments of the present utility model also provide a battery comprising a housing 101, a core pack 102, and a cover assembly according to any of the above embodiments, the housing 101 having a receiving cavity in which the core pack 102 is mounted.

In some embodiments, the connector 210 includes, but is not limited to, a circuit board, such as a flexible circuit board, and the connection wires 242 are soldered to pads of the circuit board.

The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims

1. A cover plate assembly, characterized in that, install in the casing, the casing has and accepts the chamber, accept the intracavity and install the core package, the cover plate assembly includes:

2. The cover plate assembly of claim 1, wherein the connector comprises:

a base body portion located in the second mounting hole;

3. The cover plate assembly of claim 2, wherein the outer side of the base portion is provided with a first protrusion, and the connecting member includes a first sealing member, and the first sealing member is sleeved on the outer side of the base portion and is connected between the first protrusion and the fixing member.

4. The cover plate assembly of claim 3, wherein the securing member comprises:

5. The cover plate assembly of claim 4, wherein a second countersink is provided on the cover plate, the second countersink being disposed around the perimeter of the first mounting hole, the second securing portion being located within the second countersink and being welded to the cover plate.

6. The cover plate assembly of any one of claims 1-5, wherein the connector and the retainer are integrally injection molded.

7. The cover plate assembly according to claim 1, wherein the connecting member comprises a plurality of mutually insulated sub-connecting members, a plurality of first mounting holes corresponding to the plurality of sub-connecting members are formed in the cover plate, a plurality of second mounting holes corresponding to the plurality of sub-connecting members are formed in the fixing member, one end, away from the collecting member, of each sub-connecting member is exposed to the corresponding second mounting hole, and the other end of each sub-connecting member extends into the corresponding first mounting hole to be electrically connected with the collecting member.

8. The cover plate assembly of claim 7, further comprising:

9. The cover plate assembly of claim 8, wherein the outer side of the sub-connector is provided with a second protrusion, the second protrusion being located between the second seal and the third seal.

10. The cover plate assembly of any one of claims 7 to 9, wherein the sub-connectors are metal inserts.

11. The cover plate assembly of claim 1, wherein the diameter of the first mounting hole decreases gradually from the cover plate toward the collection member, the cover plate assembly further comprising a fourth seal member positioned within the first mounting hole, the fourth seal member having a third mounting hole through which the connector passes, the fastener being positioned over the fourth seal member.

12. The cover plate assembly of claim 11, further comprising a lower plastic, wherein the lower plastic is provided with a fourth mounting hole, a first sinking portion is arranged on a hole wall of the fourth mounting hole, a part of the cover plate is clamped in the first sinking portion, and the connecting piece passes through the fourth mounting hole and is electrically connected with the collecting piece.

13. The cover plate assembly of claim 11 or 12, wherein the connector is a circuit board.

14. A battery comprising a housing having a receiving cavity, a core pack mounted within the receiving cavity, and a cover assembly as claimed in any one of claims 1 to 13.

15. The battery of claim 14, wherein the acquisition member is attached to the core pack.