Battery cover plate and power battery

Abstract

The embodiment of the utility model provides a battery cover plate and a power battery, and belongs to the technical field of power batteries. The battery cover plate comprises a cover plate body used for being connected with a battery body, and a mounting hole is formed in the cover plate body; the insulation assemblies are arranged on the two opposite surfaces of the cover plate body, and the insulation assemblies are arranged in the mounting holes; the terminal post is riveted with the cover plate body through the mounting hole, so that the insulation assembly is in sealed insulation connection with the cover plate body, the end part of the terminal post is positioned on one side, deviating from the battery body, of the cover plate body, and the riveting part of the terminal post is positioned on one side, facing the battery body, of the cover plate body. The structure of the battery cover plate can be simplified, so that the structure of the battery cover plate is simplified, and the assembly operation of the battery cover plate can be more convenient and faster.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power batteries, and in particular to a battery cover plate and a power battery. BACKGROUND

[0002] The power battery can provide a power source for a new energy vehicle.

[0003] In the prior art, the power battery comprises a battery body and a battery cover plate covering the battery body, the battery cover plate comprises a cover plate body, a pole, a sealing element, an upper insulating element, a lower insulating element and a pressing sheet, the cover plate body covers the battery body, the pole is arranged on the cover plate body, the upper insulating element and the lower insulating element are arranged on the upper and lower sides of the cover plate body respectively, the sealing element is arranged between the pole and the cover plate body, and the pressing sheet is arranged on the side of the cover plate body away from the battery body and abuts against the upper insulating element, so that the side of the pole away from the battery body is riveted and the insulating element is pressed on the cover plate body by the pressing sheet.

[0004] However, the existing battery cover plate structure is complex. CONTENT OF THE UTILITY MODEL

[0005] The battery cover plate and the power battery provided by the embodiments of the present application can solve the problem of complex structure of the existing battery cover plate.

[0006] In a first aspect, the embodiments of the present application provide a battery cover plate, comprising:

[0007] a cover plate body, the cover plate body is used to be connected with a battery body, and a mounting hole is formed in the cover plate body;

[0008] an insulating assembly, the insulating assembly is arranged on the two opposite surfaces of the cover plate body, and the insulating assembly is arranged in the mounting hole;

[0009] a pole, the pole is riveted with the cover plate body through the mounting hole, so that the insulating assembly is sealingly and insulatingly connected with the cover plate body, wherein an end head of the pole is located on the side of the cover plate body away from the battery body, and a riveting portion of the pole is located on the side of the cover plate body facing the battery body.

[0010] In a possible implementation, the battery cover plate provided by the embodiments of the present application comprises a first insulating element and a second insulating element, the first insulating element is arranged on the side of the cover plate body facing the battery body, and the second insulating element is arranged on the side of the cover plate body away from the battery body.

[0011] In a possible implementation, the battery cover plate provided by the embodiments of the present application comprises a first insulating element and a second insulating element, the first insulating element is arranged on the side of the cover plate body facing the battery body, and the second insulating element is arranged on the side of the cover plate body away from the battery body.

[0012] In a possible implementation, the battery cover plate provided by the embodiment of the present application is characterized in that at least one of the first insulating member and the second insulating member is provided with a sealing portion, and the sealing portion is located in the mounting hole to enable the sealing connection of the pole and the cover plate body.

[0013] In a possible implementation, the battery cover plate provided by the embodiment of the present application is characterized in that the cover plate body is provided with a concave-convex portion corresponding to the sealing portion, and part of the sealing portion is embedded in the concave-convex portion.

[0014] In a possible implementation, the battery cover plate provided by the embodiment of the present application is characterized in that the concave-convex portion is at least one of a convex point and a convex edge.

[0015] In a possible implementation, the battery cover plate provided by the embodiment of the present application is characterized in that the first insulating member is connected with the second insulating member through the sealing portion.

[0016] In a possible implementation, the battery cover plate provided by the embodiment of the present application is characterized in that the cover plate body is provided with a positioning groove, the mounting hole is located in the positioning groove, and at least part of the insulating assembly is adapted to the positioning groove.

[0017] In a possible implementation, the battery cover plate provided by the embodiment of the present application is characterized in that two mounting holes are arranged at intervals, and the two mounting holes are respectively used for corresponding to the positive electrode and the negative electrode of the battery body.

[0018] In a possible implementation, the battery cover plate provided by the embodiment of the present application is characterized in that two mounting holes are arranged at intervals, and the two mounting holes are respectively used for corresponding to the positive electrode and the negative electrode of the battery body.

[0019] The battery cover plate and the power battery provided by the embodiment of the present application are characterized in that the cover plate body, the pole and the insulating assembly are arranged, the pole is inserted into the cover plate body through the mounting hole of the cover plate body, the insulating assembly is arranged on the opposite sides of the cover plate body and part of the insulating assembly is located in the mounting hole, so that when the pole is inserted into the cover plate body, the end portion of the pole is located on the side of the cover plate body away from the battery body, the riveting portion of the pole is riveted with part of the insulating assembly located on the side of the cover plate body facing the battery body, the insulating assembly is sealingly and insulatingly connected with the cover plate body, and the sealing property and the insulating property between the pole and the cover plate body are ensured. Compared with the riveting portion of the pole located on the side of the cover plate body away from the battery body and riveted with part of the insulating member in the conventional technology, the pole of the battery cover plate provided by the embodiment of the present application can be crimped with part of the insulating assembly located on the side of the cover plate body away from the battery body by using the original end portion structure of the pole, and the pressing sheet is omitted. In addition, the riveting portion of the pole is riveted with part of the insulating assembly located on the side of the cover plate body facing the battery body, the insulating assembly is sealingly and insulatingly connected with the cover plate body, and the sealing member arranged in the mounting hole is also omitted, so that the structure of the battery cover plate is simplified, and the assembly operation of the battery cover plate can be more convenient and fast.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application.

[0021] Figure 1 A structural schematic diagram of a battery cover plate provided in the present application is shown in the following figure.

[0022] Figure 2 A structural schematic diagram of a battery cover plate provided in the present application is shown in the following figure. Figure 1 A sectional view along A-A in the above figure.

[0023] Figure 3 A structural schematic diagram of a battery cover plate provided in the present application is shown in the following figure. Figure 2 An enlarged view of B in the above figure. Figure 1

[0024] An enlarged view of B in the above figure. Figure 4 An enlarged view of B in the above figure. Figure 2 An enlarged view of B in the above figure. Figure 2 An enlarged view of B in the above figure. An enlarged view of B in the above figure.

[0025] An enlarged view of B in the above figure. Figure 5 An enlarged view of B in the above figure. Figure 2 An enlarged view of B in the above figure. Figure 3 BRIEF DESCRIPTION OF DRAWINGS

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 100 - cover plate body; 101 - first side; 102 - second side;

[0028] 110 - mounting hole;

[0029] 120 - concave-convex part;

[0030] 130 - positioning groove;

[0031] 200 - pole;

[0032] 210 - end part;

[0033] 220 - riveting part;

[0034] 300 - insulation assembly;

[0035] 310 - first insulation piece; 311 - first sealing part;

[0036] 320 - second insulation piece; 321 - second sealing part.

[0037] The specific embodiments of the present application have been shown in the above figures, and will be described in more detail hereinafter. These figures and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0039] As described in the background, the power battery comprises a battery body and a battery cover plate covering the battery body, the battery cover plate comprises a cover plate body, a pole, a sealing element, an upper insulating element, a lower insulating element and a pressing sheet, the cover plate body covers the battery body, the pole is arranged on the cover plate body, the upper insulating element and the lower insulating element are respectively arranged on the upper side and the lower side of the cover plate body, the sealing element is arranged between the cover plate body and the pole, and the pressing sheet is arranged on the side of the cover plate body away from the battery body and abuts against the upper insulating element, so that the side of the pole away from the battery body is riveted and the insulating element is pressed on the cover plate body through the pressing sheet, and the pressing sheet needs to be welded with the pole to ensure the relative stability of the structure between the pole and the pressing sheet.

[0040] However, the battery cover plate is arranged in this way, the insulating element needs to be guaranteed to be stable by using the pressing sheet, subsequent welding is required, and the sealing element needs to be separately arranged on the mounting hole to guarantee the sealing property, so that the structure of the battery cover plate is relatively complex and the assembly is inconvenient.

[0041] In order to overcome the defects in the prior art, the battery cover plate and the power battery provided in the embodiments of the application are as follows: the battery cover plate is provided with a cover plate body, a pole and an insulating assembly, the pole is inserted on the cover plate body through the mounting hole of the cover plate body, and the insulating assembly is arranged on the opposite sides of the cover plate body and partially located in the mounting hole, so that when the pole is inserted on the cover plate body, the end part of the pole is located on the side of the cover plate body away from the battery body, the riveting part of the pole is riveted with the part of the insulating assembly located on the side of the cover plate body facing the battery body, so as to guarantee the sealing property and the insulating property between the pole and the cover plate body. Compared with the riveting of the part of the insulating element on the side of the pole and the cover plate body away from the battery body in the conventional technology, the pole of the battery cover plate provided in the embodiments of the application can be riveted with the part of the insulating assembly located on the side of the cover plate body away from the battery body by using the original end part structure of the pole, so that the pressing sheet is not required to be arranged, the part of the insulating assembly located on the side of the cover plate body facing the battery body is riveted with the riveting part of the pole, so as to guarantee the sealing and insulating connection between the insulating assembly and the cover plate body, and the sealing element is not required to be arranged in the mounting hole, so that the structure of the battery cover plate is simplified and the assembly operation of the battery cover plate can be more convenient and fast.

[0042] The content of the present application will be described in detail below with reference to the drawings, so that those skilled in the art can understand the content of the present application more clearly and in detail.

[0043] Referring to Figures 1 to 5 As shown in the drawings, the battery cover plate provided by the present application comprises: a cover plate body 100, the cover plate body 100 is used to be connected with a battery body, and a mounting hole 110 is formed in the cover plate body 100; insulating components 300 are arranged on the opposite surfaces of the cover plate body 100, and the insulating components 300 are arranged in the mounting hole 110; and a pole 200, the pole 200 is riveted with the cover plate body 100 through the mounting hole 110, so that the insulating components 300 are sealingly and insulatingly connected with the cover plate body 100, wherein the end head 210 of the pole 200 is located on the side of the cover plate body 100 which is away from the battery body, and the riveting part 220 of the pole 200 is located on the side of the cover plate body 100 which is towards the battery body.

[0044] It can be understood that the cover plate body 100 is used to be covered on the electric core of the power battery, so as to be sealingly connected with the electric core and ensure the sealing property of the inside of the electric core. The cover plate body 100 has opposite side surfaces, which are a first side 101 and a second side 102, wherein the first side 101 is towards the electric core, i.e. the first side 101 is towards the battery body, and the second side 102 is away from the electric core, i.e. the second side 102 is away from the battery body. The mounting hole 110 which communicates the first side 101 and the second side 102 is arranged on the cover plate body 100, so as to install the pole 200.

[0045] The insulating components 300 are arranged on the cover plate body 100, a part of the insulating components 300 is arranged on the first side 101, so that the cover plate body 100 can be connected with the electric core through the insulating components 300, so as to ensure the insulating property between the cover plate body 100 and the electric core. And another part of the insulating components 300 is arranged on the second side 102, and both parts of the insulating components 300 can extend into the mounting hole 110. When the pole 200 is installed subsequently, the insulating components 300 can be located between the pole 200 and the cover plate body 100, so as to insulate the pole 200 and the cover plate body 100. The insulating components 300 which are located in the mounting hole 110 can also be deformed to fill the gap between the pole 200 and the mounting hole 110 under the mutual extrusion of the pole 200 and the cover plate body 100, so as to ensure the sealing and realize the sealing and insulating connection between the pole 200 and the cover plate body 100.

[0046] The pole column 200 is inserted into the insulating assembly 300 and the mounting hole 110 from the second side 102 of the cover plate body 100 in sequence during assembly, and partially penetrates to the first side 101. During the insertion of the pole column 200, the part of the pole column 200 located at the second side 102 can be blocked by the insulating assembly 300, and the insulating assembly 300 is pressed between the pole column 200 and the cover plate body 100 by itself, without the need for additional pressing of the insulating assembly 300 by a pressing sheet or the like structure. The part of the insulating assembly 300 located at the first side 101 can be subsequently pressed on the cover plate body 100 under the action of riveting, so as to realize the connection of the pole column 200, the insulating assembly 300 and the cover plate body 100.

[0047] The end head part 210 is arranged at one end of the pole column 200 located at the second side 102, and the end head part 210 extends radially towards the pole column 200, so that the radial dimension of the end head part 210 is greater than the radial dimension of the main body of the pole column 200, and an abutting matching surface is formed on the side of the end head part 210 facing the second side 102. The abutting matching surface can replace the pressing sheet to press the part of the insulating assembly 300 located at the second side 102 on the cover plate body 100, so as to omit the arrangement of the pressing sheet.

[0048] After the pole column 200 is partially located at the first side 101 through the mounting hole 110, the part of the insulating assembly 300 located at the first side 101 can be fixed relative to the cover plate body 100 by itself, without the need for a pressing sheet, so that the part of the pole column 200 located at the first side 101 can be directly riveted to form a riveting part 220, so that the riveting part 220 and the part of the insulating assembly 300 located at the first side 101 are riveted on the cover plate body 100.

[0049] The battery cover provided by the embodiment of the application is provided with a cover plate body 100, a pole column 200 and an insulating assembly 300, the pole column 200 is inserted into the cover plate body 100 through the mounting hole 110 of the cover plate body 100, and the insulating assembly 300 is arranged on the cover plate body 100 and partially located in the mounting hole 110, so that the pole column 200 can be sealingly and insulatingly connected with the cover plate body 100 through the insulating assembly 300 when the pole column 200 is inserted into the cover plate body 100, and the sealing property and the insulating property between the pole column 200 and the cover plate body 100 are ensured.

[0050] Compared to conventional technology where the terminal post 200 is riveted to the side away from the battery body and pressed against the insulating component on that side by a pressure plate, the battery cover provided in this embodiment allows the terminal post 200 to be pressed against a portion of the insulating component 300 on the second side 102 (the side away from the battery body) using its own original structure after being inserted into the cover body 100, eliminating the need for a pressure plate. The portion of the insulating component 300 on the side of the cover body 100 facing the battery body is connected to the cover body 100, without the need for a pressure plate to pre-fix the portion of the insulating component 300 on that side. Only by riveting the side of the terminal post 200 facing the battery body to the portion of the insulating component 300 on that side can a stable connection be achieved between the terminal post 200, the insulating component 300, and the cover body 100, simplifying the battery cover structure. Furthermore, the terminal post 200 is sealed and insulated to the cover plate body 100 through the insulating component 300, which also eliminates the need to set a seal in the mounting hole 110, further simplifying the battery cover structure and making the battery cover assembly operation more convenient and quick.

[0051] Reference Figures 3 to 5 As shown, the insulation component 300 includes a first insulating member 310 and a second insulating member 320. The first insulating member 310 is disposed on the side of the cover plate 100 facing the battery body, and the second insulating member 320 is disposed on the side of the cover plate 100 away from the battery body.

[0052] It is understandable that by setting the first insulating member 310 and the second insulating member 320 on the first side 101 and the second side 102 of the cover plate body 100 respectively, an insulating structure can be formed on both sides of the cover plate body 100. When the electrode post 200 is inserted into the cover plate body 100, the insulation performance between the electrode post 200 and the cover plate body 100 can be ensured at both ends of the electrode post 200 through the insulating components 300. Furthermore, this can separate the electrode post 200 from the cover plate body 100, preventing the electrode post 200 from being subjected to chemical or electrochemical corrosion. In addition, the first insulating member 310 and the second insulating member 320 on both sides of the cover plate body 100 can also provide additional mechanical support for the electrode post 200, ensuring the relative positional stability between the electrode post 200 and the cover plate body 100.

[0053] Among them, reference Figures 3 to 5 As shown, the end head 210 abuts against the second insulating member 320, and the riveted part 220 abuts against the first insulating member 310.

[0054] This configuration allows the cover plate 100 to be sealed and insulated to the first insulating element 310 and the second insulating element 320 on both sides via the pole post 200, effectively ensuring the sealing and insulation performance between the pole post 200 and the cover plate 100.

[0055] In some embodiments, refer to Figures 3 to 5As shown, at least one of the first insulating member 310 and the second insulating member 320 is provided with a sealing portion, which is located in the mounting hole 110 to seal the connection between the pole 200 and the cover plate body 100.

[0056] By providing the sealing portion on at least one of the first insulating member 310 and the second insulating member 320, and locating the sealing portion at the mounting hole 110 to ensure the sealing between the pole 200 and the cover plate body 100, a separate sealing member can be omitted, and the structure of the battery cover plate is simplified.

[0057] Here, the sealing portion is a part of the first insulating member 310 or the second insulating member 320, so when the first insulating member 310 or the second insulating member 320 is installed, the sealing portion can be installed in the mounting hole 110 at the same time, simplifying the assembly steps of the battery cover plate.

[0058] And it can be understood that the first sealing portion 311 or the second sealing portion 321 is not only located in the mounting hole 110, but also part of the first sealing portion 311 or the second sealing portion 321 can extend to the corresponding first side 101 or second side 102, so that the first sealing portion 311 and the second sealing portion 321 can form two part sealing profiles along the axial direction of the mounting hole 110 and along the radial direction of the mounting hole 110, respectively, to improve the sealing effect of the first sealing portion 311 and the second sealing portion 321.

[0059] In specific implementation, as shown in Figure 3 , the first sealing portion 311 is provided on the first insulating member 310, so that the first sealing portion 311 and the second insulating member 320 form a gap, as shown in Figure 4 , the second sealing portion 321 is provided on the second insulating member 320, so that the second sealing portion 321 and the first insulating member 310 form a gap, and as shown in Figure 5 , the first sealing portion 311 and the second sealing portion 321 are provided on the first insulating member 310 and the second insulating member 320 respectively, and the first sealing portion 311 and the second sealing portion 321 are pressed against each other to improve the sealing effect.

[0060] In some embodiments, as shown in Figures 3 to 5 , the cover plate body 100 is provided with a concave-convex portion 120 corresponding to the sealing portion, and part of the sealing portion is embedded in the concave-convex portion 120.

[0061] By providing the concave-convex portion 120, the concave-convex portion 120 and the sealing portion are embedded in each other, which can further improve the sealing performance between the sealing portion and the cover plate body 100, and improve the sealing between the cover plate body 100 and the pole 200.

[0062] It should be noted that, since the original sealing material has better sealing performance but higher cost compared to the insulating material, this application abandons the sealing material and sets part of the structure on the first insulating material 310 and the second insulating material 320 as a sealing part. The sealing part is made of the same material as the first insulating material 310 or the second insulating material 320. Therefore, the sealing performance of the sealing part is lower than that of the sealing material. However, the concave and convex parts 120 provided on the cover plate 100 improve the sealing performance of the sealing part to a certain extent, so that the sealing performance of the sealing part and the concave and convex parts 120 can be basically consistent with the sealing performance of the sealing material. In this way, while abandoning the sealing material and reducing the cost of the cover plate 100, the sealing effect between the pole post 200 and the cover plate 100 is not affected.

[0063] Specifically, refer to Figure 3 As shown, the first sealing part 311 is disposed on the first insulating member 310, so the protrusions and recesses 120 can be correspondingly disposed on the mounting hole 110 and the first side 101, and as Figure 4 As shown, the second sealing part 321 is disposed on the second insulating member 320, so the protrusion and recess 120 can be correspondingly disposed on the mounting hole 110 and the second side 102, and as... Figure 5 As shown, when both the first insulating member 310 and the second insulating member 320 are provided with protrusions and recesses 120, protrusions and recesses 120 can be provided on the first side 101, the second side 102 and the mounting hole 110.

[0064] In some embodiments, the protrusion 120 may also be disposed on the first insulating member 310 and its first sealing portion 311, or on the second insulating member 320 and its second sealing portion 321. This application does not limit this. When the protrusion 120 is disposed on the first insulating member 310 and the second insulating member 320, the protrusion 120 may be disposed on the side of the first insulating member 310 and the second insulating member 320 facing the cover plate body 100, or on the side of the first insulating member 310 and the second insulating member 320 facing the pole post 200. This application does not limit this.

[0065] In some embodiments, the protrusion 120 is at least one of a protrusion and a ridge.

[0066] It is understood that the concave and convex portion 120 can be a variety of structures such as concave and convex points, concave and convex textures, or concave and convex ridges, and this application does not limit it.

[0067] This design simplifies the structure of the protrusion and recess 120, provides good sealing, and facilitates the sealing performance of the sealing part.

[0068] And refer to Figure 5 As shown, in some embodiments, the first insulating member 310 is connected to the second insulating member 320 via a sealing portion.

[0069] It should be noted that the first insulating member 310 and the second insulating member 320 can be connected as a whole through the first sealing part 311 and the second sealing part 321, so that the structure of the insulating assembly 300 is further simplified. In order to facilitate the assembly of the first insulating member 310 and the second insulating member 320 connected as a whole, the second insulating member 320 can be pre-set to be adapted to the size of the mounting hole 110. When the pole 200 is inserted into the mounting hole 110 and abuts against the first insulating member 310 through the abutting part, the first insulating member 310 is deformed to form the shape shown in FIG. 8. Figure 5

[0070] In addition, in some embodiments, as shown in FIG. 1, the cover plate body 100 is provided with a positioning groove 130, and the mounting hole 110 is located in the positioning groove 130. At least part of the insulating assembly 300 is adapted to the positioning groove 130. Figures 3 to 5

[0071] It can be understood that, by providing the positioning groove 130 on the cover plate body 100, and by setting the mounting hole 110 in the positioning groove 130 and adapting the first insulating member 310 or the second insulating member 320 to the positioning groove 130, the corresponding protruding structure on the first insulating member 310 and the second insulating member 320 can correspond to the positioning groove 130 on the cover plate body 100 when the first insulating member 310 and the second insulating member 320 are assembled, which facilitates the accurate butt joint of the sealing part and the mounting hole 110, and ensures the structural stability and reliability of the insulating assembly 300 and the cover plate body 100 after the subsequent installation of the pole 200.

[0072] In the embodiment, the positioning groove 130 is provided on the first side 101 to correspond to the first insulating member 310. In other embodiments, the positioning groove 130 corresponding to the second insulating member 320 can also be provided on the second side 102, or the positioning grooves 130 can be provided on both the first side 101 and the second side 102, which is not limited in the application.

[0073] In the specific implementation, as shown in FIG. 1 and FIG. 2, two mounting holes 110 are spaced apart, and the two mounting holes 110 are respectively used to correspond to the positive electrode and the negative electrode of the battery body. Figure 1 Figure 2 In this way, the structure of the battery cover plate can be ensured to be simple and compact, and the two poles 200 can be connected to the positive electrode and the negative electrode of the battery body respectively, so as to ensure the stable operation of the power battery.

[0074]

[0075] The embodiment of the application also provides a power battery, which comprises a battery body and any one of the battery cover plates described above, and the battery cover plate is connected to the battery body.

[0076] ​​​​The battery cover plate has been described in detail in the above embodiments, and will not be described here again.

[0077] The power battery provided by the embodiment of the application is provided with a battery cover plate. The battery cover plate is provided with a cover plate body 100, a pole 200 and an insulation assembly 300. The pole 200 is sequentially inserted into the cover plate body 100 through the mounting hole 110. The insulation assembly 300 is arranged on the cover plate body 100 and partially located in the mounting hole 110. When the pole 200 is inserted into the cover plate body 100, the pole 200 is sealed and insulated with the cover plate body 100 through the insulation assembly 300, so as to ensure the sealing and insulation between the pole 200 and the cover plate body 100.

[0078] Compared with the riveting part 220 of the pole 200 in the conventional technology, which is located on the side away from the battery body and is pressed with the insulation part on the side, the pole 200 of the battery cover plate provided by the embodiment of the application is inserted into the cover plate body 100. The pole 200 is pressed with the part of the insulation assembly 300 on the second side 102 (the side away from the battery body) by using the original end part 210 structure of the pole 200. The pressing plate is omitted. The part of the insulation assembly 300 on the side of the cover plate body 100 towards the battery body is connected with the cover plate body 100. The pressing plate is not needed to pre-fix the part of the insulation assembly 300 on the side. The riveting part 220 of the pole 200 on the side towards the battery body is only needed to be riveted and connected with the part of the insulation assembly 300 on the side. The stable connection between the pole 200, the insulation assembly 300 and the cover plate body 100 is realized. The structure of the battery cover plate is simplified.

[0079] In addition, the pole 200 is sealed and insulated with the cover plate body 100 through the insulation assembly 300. The sealing part in the mounting hole 110 is also omitted. The structure of the battery cover plate is further simplified. The assembly operation of the battery cover plate is more convenient and fast.

[0080] It should be noted that the "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like mentioned in the specification represent that the described embodiment can include a specific feature, structure or characteristic, but not necessarily every embodiment includes the specific feature, structure or characteristic. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in combination with other embodiments described explicitly or implicitly.

[0081] In general, terminology can be understood at least in part from an ordinary sense of the corresponding terminology as would be understood by those of ordinary skill in the art to which the application relates. For example and as used herein, "and / or" as used herein refers to and encompasses any possible combinations of the words terms, individual or joined by "and" and / or "or." Some terms are intended to be capitalised, such as "one or more" and "at least," which, depending on the context, can be used to describe either a singular or plural numbering of an element, structure, or characteristic. As used herein, the indefinite articles "a" or "an" can be used in reference to a singular or plural numbering of an element, structure, or characteristic, depending on the context in which it is used. Similarly, terms such as "one" or "said" can be interpreted to convey either a singular usage or a plural usage, depending on the context in which it is used.

[0082] It will be readily understood that the terms "on," "above," and "upper" as used herein, shall not be construed to mean "directly on" unless expressly indicated to the contrary. Rather, "on," "above," or "upper" shall be interpreted to mean that there are intervening features or layers between the elements in question, and "above" or "upper" shall be interpreted to mean that there are no intervening features or layers between the elements in question (i.e., directly on).

[0083] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90° or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0084] Finally, it should be noted that the above-described embodiments are merely intended to illustrate the technical solutions of the present application, but not to limit the same; even though the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make modifications to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery cover plate, characterized by, The utility model relates to a battery cover plate, including: A cover plate body (100) for connecting with a battery body, the cover plate body (100) is provided with a mounting hole (110) on it; An insulating assembly (300) is arranged on the two opposite surfaces of the cover plate body (100), and the insulating assembly (300) is arranged in the mounting hole (110); A pole (200) is riveted with the cover plate body (100) through the mounting hole (110) to realize sealed and insulated connection between the insulating assembly (300) and the cover plate body (100), wherein the end head (210) of the pole (200) is located on the side of the cover plate body (100) away from the battery body, and the riveting part (220) of the pole (200) is located on the side of the cover plate body (100) towards the battery body.

2. The battery cover plate of claim 1, wherein, The insulating assembly (300) comprises a first insulating piece (310) and a second insulating piece (320), the first insulating piece (310) is arranged on the side of the cover plate body (100) towards the battery body, and the second insulating piece (320) is arranged on the side of the cover plate body (100) away from the battery body.

3. The battery cover plate of claim 2, wherein, The end head (210) abuts against the second insulating piece (320), and the riveting part (220) abuts against the first insulating piece (310).

4. The battery cover plate of claim 2, wherein, At least one of the first insulating piece (310) and the second insulating piece (320) is provided with a sealing part, and the sealing part is located in the mounting hole (110).

5. The battery cover plate of claim 4, wherein, The cover plate body (100) is provided with a concave-convex part (120) corresponding to the sealing part, and part of the sealing part is embedded in the concave-convex part (120).

6. The battery cover plate of claim 5, wherein, The concave-convex part (120) is at least one of a convex point and a convex edge.

7. The battery cover plate of claim 4, wherein, The first insulating piece (310) is connected with the second insulating piece (320) through the sealing part.

8. The battery cover plate according to any one of claims 1-7, wherein, The cover plate body (100) is provided with a positioning groove (130), the mounting hole (110) is located in the positioning groove (130), and at least part of the insulating assembly (300) is matched with the positioning groove (130).

9. The battery cover plate according to any one of claims 1-7, wherein, The mounting holes (110) are arranged at intervals, and the two mounting holes (110) are respectively used for corresponding to the positive electrode and the negative electrode of the battery body.

10. A power cell, characterized by The utility model relates to a battery cover plate, including a battery body and the battery cover plate of any one of claims 1-9, the battery cover plate is connected with the battery body.

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