CN222146298U - Batteries, battery components and electrical equipment - Google Patents
Batteries, battery components and electrical equipment Download PDFInfo
- Publication number
- CN222146298U CN222146298U CN202323640002.0U CN202323640002U CN222146298U CN 222146298 U CN222146298 U CN 222146298U CN 202323640002 U CN202323640002 U CN 202323640002U CN 222146298 U CN222146298 U CN 222146298U
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 125000006850 spacer group Chemical group 0.000 description 17
- 238000010586 diagram Methods 0.000 description 12
- 238000009413 insulation Methods 0.000 description 11
- 239000012212 insulator Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
本申请提供了一种电池、电池组件及用电设备，电池包括极芯、盖板组件及绝缘膜，所述极芯包括相对设置的第一端面、第二端面及多个侧面，多个所述侧面连接于所述第一端面和第二端面之间；所述盖板组件连接并覆盖于一个所述侧面上；所述绝缘膜完全覆盖所述第一端面、所述第二端面及另外的所述侧面，且所述绝缘膜还覆盖于所述盖板组件靠近所述极芯的一端的周侧壁。本申请提供的电池、电池组件及用电设备，结构简单、制作成本较低且空间利用率大。
The present application provides a battery, a battery assembly and an electrical device, wherein the battery comprises a pole core, a cover plate assembly and an insulating film, wherein the pole core comprises a first end face, a second end face and a plurality of side faces arranged opposite to each other, wherein the plurality of side faces are connected between the first end face and the second end face; the cover plate assembly is connected to and covers one of the side faces; the insulating film completely covers the first end face, the second end face and the other side faces, and the insulating film also covers the peripheral side wall of the cover plate assembly at one end close to the pole core. The battery, battery assembly and electrical device provided by the present application have a simple structure, a low manufacturing cost and a high space utilization rate.
Description
Technical Field
The application belongs to the technical field of batteries, and particularly relates to a battery, a battery assembly and electric equipment.
Background
With the progress of technology, the requirements for controlling the cost of the battery are more and more strict, wherein the requirements include reducing the cost of the battery sealing and insulating structure, and further reducing the manufacturing cost of the whole battery. In the existing battery structure, in order to form an insulation design between a pole core of a battery and a battery shell, the battery covers two ends of the pole core through two space rings, then covers the top of the pole core through a cover plate, and covers other surfaces of the pole core through an insulation piece so as to form an insulation design between the pole core and the battery. However, due to the design of the spacer ring, the structure is complex, the assembly difficulty is higher, and the overall production cost of the battery can be increased. And the space ring occupies the accommodating space of the battery shell, so that the whole space utilization rate of the battery is not high.
Disclosure of utility model
The application provides a battery, a battery assembly and electric equipment which have simple structure, low cost and high space utilization rate and overcome the defects in the prior art.
In one aspect, the present application provides a battery comprising:
The pole core comprises a first end face, a second end face and a plurality of side faces which are oppositely arranged, and the side faces are connected between the first end face and the second end face;
a cover plate assembly connected to and covering one of the sides, and
And the insulating film completely covers the first end face, the second end face and the other side faces, and also covers the peripheral side wall of one end, close to the pole core, of the cover plate assembly.
In one possible embodiment, the insulating film includes a first region, a second region, and a third region connected in sequence;
the first area is bent relative to the second area, and the first area covers the first end face;
The second region includes a plurality of sub-regions, each of the sub-regions covering a corresponding one of the sides;
The third region is bent relative to the second region, and the third region covers the second end face.
In one possible embodiment, the thickness of the insulating film ranges from [0.02,0.15] mm.
In one possible embodiment, one side of the insulating film covering the first end face, the second end face, and the other side face has an adhesive property.
In one possible embodiment, the cover plate assembly includes:
the cover plate body is covered on the fourth side surface;
A polar post with one end positioned between the cover plate body and the fourth side surface and the other end penetrating through the cover plate body, and
One end of each pin is arranged between the pole post and the pole core, and the other end of each pin is electrically connected with the pole lug of the pole core.
In one possible embodiment, the cover plate assembly further comprises an insulator disposed between the pin and the pole piece.
In one possible embodiment, the pin includes a first portion, a second portion, and a third portion connected in sequence;
the first part is arranged between the pole post and the pole core;
The second portion is arranged to protrude toward the third side face with respect to the first portion;
The third part protrudes towards the first side face relative to the second part, and is electrically connected with the lug of the pole core.
In one possible embodiment, the width of the second portion in the direction from the first end face to the second end face is gradually increased along the direction from the end of the second portion connecting the first portion to the end of the second portion connecting the third portion.
In one possible embodiment, the first portion is embedded in the cover plate body, and a side of the first portion facing away from the pole is leveled with a side of the cover plate body facing toward the pole core.
In another aspect, the present application provides a battery assembly comprising:
The battery described above.
In yet another aspect, the present application provides a powered device comprising:
The battery assembly described above, and
And the load is electrically connected with the battery assembly.
According to the battery, the battery assembly and the electric equipment, the first end face, the second end face, the first side face, the second side face and the third side face of the pole core are completely covered by the insulating film, and the cover plate assembly is arranged on the fourth side face, so that an insulating design is formed between the pole core and the outside. Compared with the existing structure that the end covers or the spacer rings are arranged on the first end face and the second end face, the battery provided by the application omits the design of the end covers or the spacer rings, directly covers the first end face and the second end face through the insulating film, and does not need to cover the first end face and the second end face by using the end covers, so that the structure of the battery is simpler, and the processing cost of the battery is lower. Moreover, by omitting the design of the end cover, the utilization rate of the pole core space of the battery is higher.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described. It is obvious that the drawings in the following description are only some implementations provided by way of example of the present application, and that other drawings may be obtained from these drawings by those skilled in the art without the inventive effort.
Fig. 1 is a first assembled structure diagram of a battery according to an embodiment of the present application;
fig. 2 is a second assembly structure diagram of a battery according to an embodiment of the present application;
FIG. 3 is an assembly view of a pole piece and cover plate assembly according to an embodiment of the present application;
FIG. 4 is an assembly block diagram of a cover plate assembly according to an embodiment of the present application;
Fig. 5 is a view showing an expanded structure of an insulating film according to an embodiment of the present application;
Fig. 6 is a diagram illustrating bending of an insulating film according to an embodiment of the present application;
FIG. 7 is an exploded view of a cover plate assembly according to one embodiment of the present application;
Fig. 8 is a block diagram of a pin according to an embodiment of the present application.
Detailed Description
The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to fall within the scope of the present application.
The following description of the embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the application may be practiced. Directional terms, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "side", "bottom", "top", "side wall", "longitudinal", "width", "height", etc., in the description of the present application are merely directions referring to the attached drawings, and thus, directional terms are used for better, more clear explanation and understanding of the present application, rather than indicating or implying that the apparatus or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. In the description of the present application, for example, "first", "second", "third", "fourth", etc., are used merely to distinguish the described objects, and do not have any sequential or technical meaning. In the description of the present application, references to "connected" and "coupled" are intended to include both direct connection (coupling) and indirect connection (coupling), unless otherwise indicated.
The application provides electric equipment, which comprises a battery assembly and a load. The battery assembly is used for being electrically connected with the load and supplying power to the load so as to enable the load to work normally. It should be understood that the electrical equipment provided by the present application includes, but is not limited to, vehicles, industrial equipment, household appliances, office equipment, etc., and the present application is not limited thereto.
The application also provides a battery assembly, which comprises a plurality of batteries, wherein the batteries can be stacked to form the battery assembly. The battery assembly provided by the application comprises, but is not limited to, a battery module, a battery pack and the like with a battery, and the application is not limited to the battery module, the battery pack and the like.
Because the requirements of users on electric equipment are higher and higher, the battery assembly and the battery which are main parts of the electric equipment have larger influence on the structural complexity and the production cost of the battery assembly and the whole electric equipment. Cost control for the battery includes reducing the cost of the battery sealing and insulating structure, which in turn reduces the overall manufacturing cost of the battery. In the existing battery structure, in order to form an insulation design between a pole core of a battery and a battery shell, the battery covers two ends of the pole core through two space rings, then covers the top of the pole core through a cover plate, and covers other surfaces of the pole core through an insulation piece so as to form an insulation design between the pole core and the battery. However, due to the design of the spacer ring, the structure is complex, the assembly difficulty is higher, and the overall production cost of the battery can be increased. Moreover, the space ring occupies the accommodating space of the battery shell, so that the whole space utilization rate of the battery is not high. In view of the above, the application provides a battery which has the advantages of simple structure, low cost and high space utilization rate, and further has the advantages of simple integral structure and low production cost of electric equipment.
The battery provided by the application is described in detail below.
Referring to fig. 1 to 4, fig. 1 is a first assembly structure diagram of a battery according to an embodiment of the present application, fig. 2 is a second assembly structure diagram of a battery according to an embodiment of the present application, fig. 3 is an assembly diagram of a pole core and cover assembly according to an embodiment of the present application, and fig. 4 is an assembly structure diagram of a cover assembly according to an embodiment of the present application.
The present embodiment provides a battery 100, the battery 100 includes a pole core 10, a cover plate assembly 30 and an insulating film 50, the pole core 10 is used for forming a power source of the battery 100, the cover plate assembly 30 is covered on one side surface of one end of the pole core 10, the insulating film 50 is covered on the other side surface of the other end of the pole core 10 except the end covered by the cover plate assembly 30, and the insulating film 50 is further overlapped with a peripheral side wall of the end of the cover plate assembly 30 close to the pole core 10, so that the cover plate assembly 30 and the insulating film 50 can completely cover the pole core 10.
Taking a hexahedral structure as an example, the pole core 10. The pole core 10 comprises a first end face 11 and a second end face 12 which are oppositely arranged, and further comprises a first side face 13, a second side face 14, a third side face 15 and a fourth side face 16 which are sequentially connected, wherein the first side face 13, the second side face 14, the third side face 15 and the fourth side face 16 are connected between the first end face 11 and the second end face 12. Wherein the first side 13 is arranged opposite to the third side 15, and the second side 14 and the fourth side 16 are arranged opposite to each other. The cover plate assembly 30 is coupled to and covers the fourth side 16 to insulate the fourth side 16 of the pole piece 10. The insulating film 50 completely covers the first end surface 11, the second end surface 12, the first side surface 13, the second side surface 14, and the third side surface 15 of the pole core 10 after bending, thereby insulating the first end surface 11, the second end surface 12, the first side surface 13, the second side surface 14, and the third side surface 15 of the pole core 10.
The battery 100 provided by the application completely covers the first end face 11, the second end face 12, the first side face 13, the second side face 14 and the third side face 15 through the insulating film 50, and the cover plate assembly 30 is arranged on the fourth side face 16 so as to insulate the whole of the pole core 10 from the outside. Compared with the prior structure that the end covers are arranged on the first end face 11 and the second end face 12, the insulation design is adopted for the first end face 11 and the second end face 12 of the pole core 10. The battery 100 provided by the application omits the design of the end covers, and the first end face 11 and the second end face 12 are directly covered by the insulating film 50, so that the end covers are not needed, and the battery 100 is simple in structure and low in cost. Moreover, by omitting the design of the end cover, the space utilization rate of the pole core 10 of the battery 100 is higher, namely, the battery 100 with the same volume, the pole core 10 of the battery 100 provided by the application can be designed larger, which is beneficial to improving the capacitance of the battery 100.
Referring to fig. 1 to 6, fig. 5 is a structural diagram of an insulation film according to an embodiment of the present application, and fig. 6 is a structural diagram of an insulation film bending structure according to an embodiment of the present application.
In a specific embodiment, the insulating film 50 includes a first region 51, a second region 52, and a third region 53 connected in this order. The first region 51 is bent with respect to the second region 52, and the first region 51 completely covers the first end face 11 to insulate the first end face 11 of the pole core 10. The second region 52 covers the other side of the end of the pole core 10 except the end covered by the cover plate assembly 30, that is, the second region 52 completely covers the first side 13, the second side 14 and the third side 15 to insulate the first side 13, the second side 14 and the third side 15 of the pole core 10. The third region 53 is bent with respect to the second region 52, and the third region 53 completely covers the second end face 12 to insulate the second end face 12 of the pole core 10. The first end face 11 is completely covered by the first region 51, the first side face 13, the second side face 14 and the third side face 15 are completely covered by the second region 52, the second end face 12 is completely covered by the third region 53, so that the first end face 11, the second end face 12, the first side face 13, the second side face 14 and the third side face 15 of the pole core 10 are insulated by the insulating film 50, and the fourth side face 16 of the pole core 10 is insulated by the cap assembly 30, so that the pole core 10 of the battery 100 forms a complete insulating structure.
Further, the second region 52 includes a plurality of sub-regions including a first sub-region 521, a second sub-region 522, and a third sub-region 523 connected in sequence. The first sub-area 521 completely covers the first side 13 to insulate the first side 13 of the pole piece 10. The second sub-area 522 is bent with respect to the first sub-area 521, the second sub-area 522 completely covering the second side 14 to insulate the second side 14 of the pole core 10. The third sub-area 523 is bent with respect to the second sub-area 522, the third sub-area 523 completely covering the third side 15 to insulate the third side 15 of the pole piece 10. By the first sub-region 521 completely covering the first side 13, the second sub-region 522 completely covering the second side 14, and the third sub-region 523 completely covering the third side 15, the second region 52 of the insulating film 50 insulates the first side 13, the second side 14, and the third side 15 of the pole core 10.
Referring to fig. 1 to 6, in one embodiment, the thickness of the insulating film 50 is in the range of 0.02,0.15 mm. Alternatively, the thickness of the insulating film 50 may be any value of 0.02mm, 0.05mm, 0.08mm, 0.11mm, 0.15mm, and the like. Too thin insulating film 50 may result in poor insulation of insulating film 50 from electrode core 10, while too thick insulating film 50 may affect bending of insulating film 50 and the overall structural size of battery 100. By limiting the thickness range of the insulating film 50 to be 0.02,0.15 mm, the influence of the insulating film 50 on the overall size of the battery 100 can be reduced on the premise of ensuring the insulating effect of the insulating film 50 on the pole core 10, the miniaturization development of the battery 100 is facilitated, and the insulating film 50 is also facilitated to be bent, so that the bonding between the insulating film 50 and the pole core 10 is firmer.
Referring to fig. 1 to 6, in a specific embodiment, one side of the insulating film 50 covering the first end face 11, the second end face 12, the first side face 13, the second side face 14, and the third side face 15 has adhesiveness. In other words, the insulating film 50 may have a structure similar to that of an adhesive tape, and an adhesive layer (not shown) is provided on the insulating film 50, and the adhesive layer is provided on a side of the insulating film 50 that is attached to the first end face 11, the second end face 12, the first side face 13, the second side face 14, and the third side face 15. The side of the insulating film 50, which covers the pole core 10, is provided with an adhesive or adhesive layer, so that the attaching stability of the insulating film 50 attached to the pole core 10 is better, the risk that the insulating film 50 falls off from the surface of the pole core 10 can be reduced, and the insulating effect of the insulating film 50 on the pole core 10 is further ensured.
Referring to fig. 1, 3, 7 and 8, fig. 7 is an exploded view of a cover assembly according to an embodiment of the present application, and fig. 8 is a structure diagram of a pin according to an embodiment of the present application.
In one embodiment, the cover assembly 30 includes a cover body 31, a post 32, a pin 33, and an insulator 34. The cover plate body 31 covers the fourth side 16 of the pole core 10. One end of the pole 32 is located between the cover plate body 31 and the fourth side 16, and the other end passes through the cover plate body 31. One end of the pin 33 is disposed between the pole 32 and the pole core 10, and the other end is electrically connected to the tab 17 of the pole core 10 after being bent. The lead 33 is electrically connected between the pole 32 and the tab 17 of the pole 10, so that the pole 10 is electrically connected with the pole 32, and the electric energy in the pole 10 is transmitted to the outside of the battery 100 through the pole 32. The insulator 34 is disposed between the end of the pin 33 near the pole 32 and the pole core 10. The insulation member 34 is provided to insulate the end of the lead 33 connected to the pole 32 from the pole core 10.
More specifically, the cover plate body 31 includes a sealing ring 311, a spacer ring 312, an optical cover plate 313, an insulating sleeve 314, and a terminal 315, the sealing ring 311 is sleeved on the pole 32, the spacer ring 312 and the optical cover plate 313 are stacked, and the spacer ring 312 is attached to the fourth side 16 of the pole core 10. The pole 32 is provided with a spacer ring 312 and an optical cover plate 313 in a penetrating way, and the sealing ring 311 is positioned between one side of the spacer ring 312, which is away from the optical cover plate 313, and the end part of the terminal 315. The insulating sleeve 314 is disposed on a side of the optical cover 313 facing away from the spacer 312, the pole 32 penetrates out of the insulating sleeve 314, and the terminal 315 is electrically connected with one end of the pole 32 penetrating out of the insulating sleeve 314, so that the electric energy of the pole core 10 flows out of the battery 100 through the pin 33, the pole 32 and the terminal 315 in sequence.
Referring to fig. 1, 3, 7 and 8, in one embodiment, the pin 33 includes a first portion 331, a second portion 332 and a third portion 333 connected in sequence. The first portion 331 is parallel to the spacer 312 of the cap body, and the first portion 331 is disposed between the pole 32 and the fourth side 16 of the pole core 10. The second portion 332 is bent relative to the first portion 331, the second portion 332 is perpendicular to the first portion 331, and the second portion 332 protrudes toward the third side 15. The third portion 333 is bent relative to the second portion 332, the third portion 333 is perpendicular to the first portion 331, the third portion 333 is parallel to the second portion 332, the third portion 333 protrudes toward the first side 13, and the third portion 333 is electrically connected to the tab 17 of the pole core 10. The second portion 332 is arranged to protrude towards the third side surface 15 of the pole core 10 relative to the first portion 331 and the third portion 333, so that the second portion 332 of the pin 33 can form an avoidance structure on the tab 17 of the pole core 10, and interference of the pin 33 on the tab 17 of the pole core 10 can be reduced, so that influence of the pin 33 on a dressing area on the tab 17 of the pole core 10 is reduced.
Further, in the lead 33, the width of the second portion 332 in the direction from the first end face 11 to the second end face 12 gradually increases along the direction from the end of the second portion 332 where the first portion 331 is connected to the end of the second portion 332 where the third portion 333 is connected. By gradually increasing the width of the second portion 332 of the lead 33 in the direction from the first portion 331 to the third portion 333, the contact between the lead 33 and the tab 17 of the pole core 10 can be further reduced, the interference between the lead 33 and the arc of the tab 17 of the pole core 10 can be reduced, and the influence of the lead 33 on the dressing area of the tab 17 of the pole core 10 can be further reduced.
Referring to fig. 1, 3, 7 and 8, in a specific embodiment, the first portion 331 is embedded in the spacer 312 of the cover body 31, and a side of the first portion 331 facing away from the pole 32 is leveled with a side of the spacer 312 of the cover body 31 facing the pole core 10. By embedding the first portion 331 of the lead 33 inside the spacer 312 of the cap body, the circumference of the first portion 331 of the lead 33 can be effectively insulated to prevent a creepage phenomenon between the first portion 331 of the lead 33 and the pole piece 10. Moreover, the side of the first portion 331 of the lead 33 near the second portion 332 is leveled with the side of the spacer 312 of the cover body facing the pole core 10, that is, the side of the first portion 331 of the lead 33 near the second portion 332 is on the same plane with the side of the spacer 312 of the cover body facing the pole core 10, so that the insulator 34 attaches the first portion 331 of the lead 33 to the side of the spacer 312 facing the pole core 10, and the risk of the insulator 34 falling off can be reduced.
While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the application, and such changes and modifications are intended to be included within the scope of the application.
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323640002.0U CN222146298U (en) | 2023-12-28 | 2023-12-28 | Batteries, battery components and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323640002.0U CN222146298U (en) | 2023-12-28 | 2023-12-28 | Batteries, battery components and electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222146298U true CN222146298U (en) | 2024-12-10 |
Family
ID=93726720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323640002.0U Active CN222146298U (en) | 2023-12-28 | 2023-12-28 | Batteries, battery components and electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222146298U (en) |
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- 2023-12-28 CN CN202323640002.0U patent/CN222146298U/en active Active
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