Battery and electric equipment

Abstract

The utility model provides a battery and electric equipment, and relates to the technical field of battery manufacturing. The battery comprises a cover plate assembly and a connecting piece, the cover plate assembly comprises a substrate, an insulating part and a pole; one side of the substrate is connected with the insulating part, the pole penetrates through the substrate and the insulating part and is connected with the substrate, and the connecting end of the pole is arranged on the side, away from the substrate, of the insulating part; a positioning assembly is arranged on the side, away from the substrate, of the insulating part, and the positioning assembly comprises two first positioning parts which are oppositely arranged; the connecting piece comprises a first connecting part and a second connecting part which are connected; two opposite positioning grooves are formed in the first connecting part; the first connecting part is arranged between the two first positioning pieces, and the first positioning pieces are arranged in the positioning grooves; the first connecting part is connected with the connecting end of the pole, and the second connecting part is used for connecting a tab on a battery cell. The electric equipment comprises a battery. The battery provided by the utility model can prevent the connecting sheet from deviating when being connected with the pole.

Description

Technical Field

[0001] This application relates to the technical field of battery manufacturing, and particularly to a battery and an electrical device using the same. Background Art

[0002] In the field of batteries, a connecting piece is a component that connects a terminal post to a tab on a battery cell. Currently, when the connecting piece is welded to the terminal post, the connecting piece is prone to rotate relative to the terminal post, resulting in inaccurate positioning between the connecting piece and the terminal post, thereby affecting the welding of the connecting piece to the terminal post and the assembly of the battery cell. Summary of the Utility Model

[0003] To overcome the deficiencies in the prior art, this application provides a battery and an electrical device using the same.

[0004] This application provides the following technical solutions:

[0005] In a first aspect, this application provides a battery, comprising:

[0006] A cover plate assembly, the cover plate assembly comprising a substrate, an insulating member, and a terminal post; one side of the substrate is connected to the insulating member, the terminal post passes through the substrate and the insulating member, and the terminal post is connected to the substrate, and the connecting end of the terminal post is disposed on the side of the insulating member away from the substrate; a positioning assembly is provided on the side of the insulating member away from the substrate, and the positioning assembly comprises two first positioning members arranged oppositely;

[0007] A connecting piece, the connecting piece comprising a first connecting portion and a second connecting portion connected to each other; two oppositely arranged positioning grooves are formed on the first connecting portion; the first connecting portion is disposed between the two first positioning members, and the first positioning members are disposed in the positioning grooves; the first connecting portion is connected to the connecting end of the terminal post, and the second connecting portion is used for connecting a tab on a battery cell.

[0008] In a possible implementation manner, at least one second positioning member is provided on the side of the insulating member away from the connecting piece, and at least one positioning hole matching the second positioning member is formed on the side of the substrate close to the insulating member, and the at least one second positioning member is correspondingly inserted into the at least one positioning hole.

[0009] In a possible implementation manner, a convex block is provided on the side of the insulating member away from the connecting piece, and a groove matching the convex block is formed on the side of the substrate close to the insulating member, and the convex block is inserted into the groove.

[0010] In a possible implementation, the terminal post includes a base, a column body, and a fixing member; the base is disposed on a side of the insulating member away from the substrate and is connected to the first connecting portion; one end of the column body is fixed to the base, and the end of the column body away from the base penetrates through the insulating member and the substrate respectively; the fixing member is disposed on a side of the substrate away from the insulating member and is connected to the column body.

[0011] In a possible implementation, the cover assembly further includes an explosion-proof valve, and the explosion-proof valve is disposed between the substrate and the insulating member; an explosion-proof hole corresponding to the explosion-proof valve is formed on the substrate, and the explosion-proof hole is used to expose the explosion-proof valve.

[0012] In a possible implementation, an explosion-proof grid corresponding to the explosion-proof valve is provided on the insulating member.

[0013] In a possible implementation, a liquid injection hole is provided on the substrate, and a through hole is provided on the insulating member, and the axes of the liquid injection hole and the through hole are collinear.

[0014] In a possible implementation, a weight-reducing groove is further formed on the first connecting portion.

[0015] In a possible implementation, the battery includes a plurality of the connecting pieces, and a plurality of groups of the positioning assemblies are provided on a side of the insulating member away from the substrate.

[0016] In a second aspect, the present application further provides an electrical device including the above battery.

[0017] Compared with the prior art, the beneficial effects of the present application are as follows:

[0018] For the battery provided by the present application, by providing a positioning assembly on a side of the insulating member away from the substrate, the positioning assembly includes two first positioning members arranged oppositely, and two positioning grooves arranged oppositely are formed on the first connecting portion of the connecting piece. When the first connecting portion of the connecting piece is disposed between the two first positioning members and is connected to the connecting end of the terminal post, the two first positioning members can be respectively disposed in the corresponding positioning grooves, and the first positioning member cooperates with the inner wall of the positioning groove, which can effectively prevent relative rotation between the connecting piece and the terminal post, thereby preventing offset when the connecting piece is connected to the terminal post, and further ensuring accurate core alignment of the battery cell.

[0019] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 Shows a three-dimensional structural schematic diagram of a battery according to an embodiment of the present application;

[0022] Figure 2 Shows a three-dimensional structural schematic diagram of a connecting piece according to an embodiment of the present application;

[0023] Figure 3 Shows a three-dimensional structural schematic diagram of a cover plate assembly according to an embodiment of the present application;

[0024] Figure 4 Shows an exploded schematic diagram of a cover plate assembly according to an embodiment of the present application;

[0025] Figure 5 Shows a three-dimensional structural schematic diagram of a cover plate according to an embodiment of the present application;

[0026] Figure 6 Shows a schematic diagram of a battery before core assembly according to an embodiment of the present application;

[0027] Figure 7 Shows a schematic diagram of a battery after core assembly according to an embodiment of the present application.

[0028] Main element symbol description:

[0029] 100 - Battery; 110 - Cover plate assembly; 111 - Substrate; 1111 - Mounting hole; 1112 - Explosion-proof hole; 1113 - Liquid injection hole; 1114 - Positioning hole; 1115 - Groove; 112 - Insulating part; 1121 - Insulating plate; 1122 - First positioning part; 1123 - Second positioning part; 1124 - Protrusion; 1125 - Explosion-proof grid; 1126 - Through hole; 113 - Terminal; 1131 - Base; 1132 - Column body; 1133 - Fixing part; 1134 - Sealing part; 114 - Explosion-proof valve; 120 - Connecting piece; 121 - First connecting part; 1211 - Positioning groove; 1212 - Weight reduction groove; 122 - Folding part; 123 - Second connecting part; 130 - Battery cell; 131 - Tab. Detailed implementation manners

[0030] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation of the present application.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0033] In the present application, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0035] Embodiment 1

[0036] Please refer to Figure 1 , an embodiment of the present application provides a battery 100, and the battery 100 includes a cover plate assembly 110 and a connecting piece 120.

[0037] Among them, the cover plate assembly 110 includes a substrate 111, an insulating member 112, and a pole column 113; one side of the substrate 111 is connected to the insulating member 112, the pole column 113 passes through the substrate 111 and the insulating member 112, and the pole column 113 is connected to the substrate 111, and the connecting end of the pole column 113 is arranged on the side of the insulating member 112 away from the substrate 111; a positioning assembly is arranged on the side of the insulating member 112 away from the substrate 111, and the positioning assembly includes two first positioning members 1122 arranged opposite to each other.

[0038] Please refer to Figure 1 and Figure 2 , the connecting piece 120 includes a first connecting portion 121 and a second connecting portion 123 that are connected; two opposite positioning grooves 1211 are formed on the first connecting portion 121; the first connecting portion 121 is arranged between the two first positioning members 1122, and the first positioning members 1122 are arranged in the corresponding positioning grooves 1211.

[0039] The first connecting portion 121 is used to connect the connecting end of the pole column 113, and the second connecting portion 123 is used to connect the pole ear 131 on the battery cell 130.

[0040] When the first connecting portion 121 of the connecting piece 120 is arranged between the two first positioning members 1122, and the two first positioning members 1122 are correspondingly arranged in the two positioning grooves 1211, the first positioning members 1122 cooperate with the inner walls of the positioning grooves 1211, which can effectively prevent relative rotation between the connecting piece 120 and the pole column 113, thereby preventing offset when the connecting piece 120 is connected to the pole column 113, and further ensuring accurate assembly of the battery cell 130.

[0041] Exemplarily, the shape of the first positioning member 1122 is generally a semi-cylindrical shape, and the shape of the positioning groove 1211 is generally a semi-circular shape. The first positioning member 1122 is fixed to the insulating member 112 by an integrally formed manner.

[0042] In some embodiments, please refer to Figure 3 , the battery 100 includes two pole columns 113, and the two pole columns 113 are a positive pole column and a negative pole column respectively.

[0043] In some embodiments, please refer to Figure 4 and Figure 5, a bump 1124 is provided on a side of the insulating member 112 away from the connecting piece 120, a groove 1115 matching the bump 1124 is formed on a side of the substrate 111 close to the insulating member 112, and the bump 1124 is inserted into the groove 1115 to position the relative positional relationship between the insulating member 112 and the substrate 111.

[0044] In some embodiments, two bumps 1124 are provided on the insulating member 112. The two bumps 1124 are a first bump and a second bump respectively, and the first bump and the second bump are respectively arranged at two ends of the insulating member 112; two grooves 1115 are formed on the substrate 111. The two grooves 1115 are a first groove and a second groove respectively, and the first groove and the second groove are respectively arranged at two ends of the substrate 111. The first bump is inserted into the first groove, and the second bump is inserted into the second groove; the positive electrode post respectively passes through the first bump and the first groove, and the negative electrode post respectively passes through the second bump and the second groove.

[0045] In some embodiments, please refer to Figure 4 and Figure 5 , at least one second positioning member 1123 is provided on a side of the insulating member 112 away from the connecting piece 120, at least one positioning hole 1114 matching the second positioning member 1123 is formed on a side of the substrate 111 close to the insulating member 112, and the at least one second positioning member 1123 is correspondingly inserted into the at least one positioning hole 1114. The second positioning member 1123 cooperates with the inner wall of the positioning hole 1114 to effectively prevent the substrate 111 and the insulating member 112 from shifting.

[0046] Exemplarily, the second positioning member 1123 is a positioning post, and the second positioning member 1123 is fixedly connected to the insulating member 112 in an integrally formed manner.

[0047] In some embodiments, two second positioning members 1123 are provided at both ends of the insulating member 112. The two second positioning members 1123 at one end of the insulating member 112 are symmetrically arranged with the first bump as the center, and the two second positioning members 1123 at the other end of the insulating member 112 are symmetrically arranged with the second bump as the center; two matching positioning holes 1114 are provided at both ends of the substrate 111.

[0048] In some embodiments, please refer to Figure 3 and Figure 4, the terminal post 113 includes a base 1131, a column body 1132 and a fixing member 1133; the base 1131 is arranged on the side of the insulating member 112 away from the substrate 111 and is connected to the first connecting portion 121; one end of the column body 1132 is fixed on the base 1131, and the end of the column body 1132 away from the base 1131 penetrates through the insulating member 112 and the substrate 111 respectively; the fixing member 1133 is arranged on the side of the substrate 111 away from the insulating member 112 and is connected to the column body 1132.

[0049] The base 1131 is the connecting end of the terminal post 113.

[0050] In some embodiments, the fixing member 1133 is provided with a buckle, and the column body 1132 is provided with a card slot corresponding to the buckle, and the buckle is clamped in the card slot to connect the fixing member 1133 and the column body 1132.

[0051] In some embodiments, the substrate 111 is provided with a mounting hole 1111, and the column body 1132 penetrates through the mounting hole 1111.

[0052] Furthermore, a plurality of connecting grooves are formed in the circumferential direction of the mounting hole 1111, and a plurality of connecting blocks are arranged on the fixing member 1133, and the connecting blocks are clamped in the connecting grooves to connect the fixing member 1133 and the substrate 111.

[0053] In some embodiments, the terminal post 113 further includes a sealing member 1134, a sealing groove is formed in the column body 1132, and the sealing member 1134 is arranged in the sealing groove.

[0054] In some embodiments, please refer to Figures 3 to 5 , the cover plate assembly 110 further includes an explosion-proof valve 114, the explosion-proof valve 114 is arranged between the substrate 111 and the insulating member 112; an explosion-proof hole 1112 corresponding to the explosion-proof valve 114 is formed in the substrate 111, and the explosion-proof hole 1112 is used to expose the explosion-proof valve 114.

[0055] Exemplarily, the explosion-proof valve 114 is arranged between the positive terminal post and the negative terminal post.

[0056] Furthermore, an explosion-proof grid 1125 corresponding to the explosion-proof valve 114 is arranged on the insulating member 112, and the explosion-proof grid 1125 is used for the high-pressure gas generated by the battery core 130 to pass through, so as to open the explosion-proof valve 114.

[0057] In some embodiments, please refer to Figures 3 to 5, a liquid injection hole 1113 is provided on the substrate 111, a through hole 1126 is provided on the insulating member 112, and the axes of the liquid injection hole 1113 and the through hole 1126 are collinear. An operator can inject electrolyte into the battery cell 130 through the liquid injection hole 1113 and the through hole 1126.

[0058] In some embodiments, please refer to Figure 4 , the insulating member 112 is composed of at least two insulating plates 1121 spliced together, and the explosion-proof grid 1125 is provided on any one of the insulating plates 1121.

[0059] In some embodiments, please refer to Figure 6 and Figure 7 , the battery 100 includes a plurality of the connecting pieces 120, and a plurality of groups of the positioning components are provided on a side of the insulating member 112 away from the substrate 111.

[0060] Furthermore, the battery 100 includes a plurality of battery cells 130, and the plurality of connecting pieces 120 are respectively connected to the corresponding pole posts 113 and the pole tabs 131 on the battery cells 130.

[0061] Exemplarily, the battery 100 includes four of the connecting pieces 120 and four of the battery cells 130. Two pole tabs 131 are provided on each of the battery cells 130. The battery 100 further includes two of the pole posts 113. Each of the pole posts 113 is connected to the first connecting portions 121 on two of the connecting pieces 120, and the second connecting portions 123 on each of the connecting pieces 120 are connected to the pole tabs 131 on two of the battery cells 130.

[0062] In some embodiments, please refer to Figure 2 , the connecting piece 120 further includes a folding portion 122. One side of the folding portion 122 is connected to the first connecting portion 121, and the other side is connected to the second connecting portion 123. The folding portion 122 can be folded to facilitate the assembly of the battery cells 130.

[0063] The assembly of the battery cells 130 means that after the connecting piece 120 connects the pole post 113 and the pole tab 131 on the battery cell 130, the connecting piece 120 is folded so that the battery cell 130 is disposed below the cover plate assembly 110. After the battery cells 130 are assembled, they are placed into the housing (not shown in the figure) of the battery 100.

[0064] If the connecting piece 120 is offset during welding with the pole post 113, it will cause the pole tab 131 connected to the connecting piece 120 to be torn, and after the battery cells 130 are assembled, there will be a position interference and they cannot be smoothly placed into the housing of the battery 100.

[0065] In the battery 100 of this embodiment, by the cooperation between the second positioning member 1123 and the inner wall of the positioning hole 1114, the offset between the substrate 111 and the insulating member 112 can be effectively prevented, thereby avoiding the position interference after the core combination of the battery cell 130.

[0066] In some embodiments, please refer to Figure 2 , a weight reduction groove 1212 is further formed on the first connecting portion 121 to reduce the weight of the connecting piece 120.

[0067] Embodiment Two

[0068] This application further provides an electrical device, including the battery 100 of any of the above embodiments.

[0069] The electrical device may be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, an electric toy, an electric tool, a battery car, an electric vehicle, a ship, a spacecraft, etc.

[0070] The electrical device provided in this embodiment has the battery 100 provided in any of the above embodiments. Therefore, it has all the beneficial effects of the battery 100 provided in any of the above embodiments, which will not be elaborated here one by one.

[0071] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0072] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A battery, characterized in that: include: A cover plate assembly, the cover plate assembly comprising a substrate, an insulating member and a pole; one side of the substrate is connected to the insulating member, the pole is provided through the substrate and the insulating member, and the pole is connected to the substrate, and the connection end of the pole is provided on a side of the insulating member away from the substrate; a positioning assembly is provided on a side of the insulating member away from the substrate, and the positioning assembly comprises two first positioning members arranged opposite to each other; A connecting piece, the connecting piece includes a first connecting portion and a second connecting portion connected to each other; the first connecting portion is provided with two positioning grooves arranged opposite to each other; the first connecting portion is arranged between the two first positioning members, and the first positioning member is arranged in the positioning groove; the first connecting portion is connected to the connecting end of the pole, and the second connecting portion is used to connect to the pole ear on the battery cell.

2. The battery according to claim 1, characterized in that At least one second positioning member is provided on a side of the insulating member away from the connecting piece, and at least one positioning hole matching the second positioning member is opened on a side of the substrate close to the insulating member, and the at least one second positioning member is correspondingly inserted into the at least one positioning hole.

3. The battery according to claim 1, characterized in that A protrusion is provided on one side of the insulating member away from the connecting piece, and a groove matching the protrusion is provided on one side of the substrate close to the insulating member, and the protrusion is inserted into the groove.

4. The battery according to claim 1, characterized in that The pole includes a base, a column and a fixing part; the base is arranged on a side of the insulating part away from the substrate and is connected to the first connecting part; one end of the column is fixed on the base, and the end of the column away from the base is respectively passed through the insulating part and the substrate; the fixing part is arranged on a side of the substrate away from the insulating part and is connected to the column.

5. The battery according to claim 1, characterized in that The cover plate assembly further comprises an explosion-proof valve, which is arranged between the base plate and the insulating member; an explosion-proof hole corresponding to the explosion-proof valve is opened on the base plate, and the explosion-proof hole is used to expose the explosion-proof valve.

6. The battery according to claim 5, characterized in that An explosion-proof grille corresponding to the explosion-proof valve is arranged on the insulating member.

7. The battery according to claim 1, characterized in that The substrate is provided with a liquid injection hole, the insulating member is provided with a through hole, and the axis of the liquid injection hole is colinearly arranged with the axis of the through hole.

8. The battery according to claim 1, characterized in that The first connecting portion is also provided with a weight-reducing groove.

9. The battery according to claim 1, characterized in that The battery comprises a plurality of the connecting plates, and a plurality of groups of the positioning components are arranged on a side of the insulating member away from the substrate.

10. An electrical device, characterized in that: A battery comprising any one of claims 1 to 9.

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