Battery and electric equipment
By using a snap-fit connection between the terminal post and the adapter plate, the problems of low assembly efficiency and high disassembly difficulty of lithium-ion batteries are solved, enabling rapid assembly and convenient disassembly of batteries and promoting the recycling of battery cells.
Patent Information
- Application Number
- CN202520107185.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-01-16
AI Technical Summary
The assembly efficiency of the top cover of existing lithium-ion batteries is low and they are difficult to disassemble, which makes it difficult to recycle the cells.
The electrode and adapter plate are connected by snap-fit, replacing the traditional welding method. The electrode and adapter plate achieve electrical connection through sliding and snap-fit connection, simplifying the assembly process.
It improves battery assembly efficiency and disassembly convenience, promotes cell recycling, and enhances resource utilization.
Smart Images
Figure CN223884500U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of battery, especially a battery and electric equipment. BACKGROUND
[0002] The current lithium ion battery includes a shell, a cell and a top cover, the cell is accommodated in the shell, the top cover is also used for sealing the opening on the shell, the tab led out on the cell is welded through the adapter piece and the pole on the top cover, the welding mode of the tab and the adapter piece is usually ultrasonic welding, the welding mode of the adapter piece and the pole on the top cover is usually laser welding, the existing battery structure is more complex and has low assembly efficiency due to the existence of two welding processes, in addition, when the tab is welded with the pole of the top cover, the top cover is difficult to disassemble, so that the cell is difficult to take out and recycle.
[0003] Therefore, it is necessary to improve the prior art.
[0004] The above information is given as background information only to assist with an understanding of the present disclosure, and does not constitute a admission that any of the above information is applicable as prior art with regard to the present disclosure. UTILITY MODEL CONTENT
[0005] The utility model provides a battery and electric equipment, mainly solves the technical problem of low top cover assembly efficiency and big dismounting difficulty in prior art.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A battery, including shell, cell and battery top cover, the shell is provided with opening, the cell is accommodated in the shell, the cell includes tab, the tab is connected with adapter piece, the battery top cover includes cover plate main part and pole, the cover plate main part seals the opening, the pole is insulatedly connected with the cover plate main part, the pole is buckled with the adapter piece.
[0008] In one of the technical schemes, the pole is slidably connected with the adapter piece along the first direction, and the first direction is parallel to the length direction of the cover plate main part.
[0009] In one of the technical schemes, the pole is slidably connected with the adapter piece along the first direction, and the first direction is parallel to the length direction of the cover plate main part.
[0010] In one of the technical solutions, the main body part is provided with a notch recessed along the first direction for inserting the pole column, and the buckle part is protruded in the notch and extends along the opposite direction of the first direction.
[0011] In one of the technical solutions, the buckle part and the main body part are arranged adjacent along the first direction, and the buckle part extends along the opposite direction of the first direction.
[0012] In one of the technical solutions, the length of the buckle part extends along the first direction.
[0013] In one of the technical solutions, the two slot walls opposite along the second direction in the sliding groove are both provided with the clamping slot, the adapter piece includes two buckle parts arranged at intervals along the second direction, the two buckle parts are both slid into the sliding groove along the opposite direction of the first direction, and each buckle part corresponds to each clamping slot and is clamped with each other.
[0014] In one of the technical solutions, the buckle part is connected with the main body part through a safety structure.
[0015] In one of the technical solutions, the battery top cover includes two pole columns and two adapter pieces, the two pole columns are both provided with a sliding groove, the two adapter pieces are both provided with a buckle part, the adapter piece and the pole column correspond to each other and are clamped with each other along the first direction, one of the adapter pieces is used for connecting with the positive pole lug, and the other adapter piece is used for connecting with the negative pole lug.
[0016] In one of the technical solutions, the side of the adapter piece away from the battery cell is provided with the pole lug, the distance between the side of the adapter piece away from the battery cell and the side of the cover body facing the battery cell is A, and the thickness of the pole lug is B, and A is greater than B.
[0017] In one of the technical solutions, the first direction is parallel to the length direction of the cover body.
[0018] The application further provides a power utilization device including the battery.
[0019] Compared with the prior art, the battery top cover has at least the following beneficial effects:
[0020] By the scheme, when assembling the battery, the adapter piece and the pole lug on the battery cell can be welded in advance, and the pole post can be connected to the cover plate body in advance, then the battery cell with the adapter piece is assembled into the shell, and then the cover plate body with the pole post and the adapter piece are connected through the buckle connection, so that the assembly of the battery can be quickly completed, the pole post and the adapter piece do not need to be welded, the buckle connection between the pole post and the adapter piece can greatly improve the assembly efficiency of the battery, meanwhile, the difficulty of disassembling the battery is reduced, and the disassembly efficiency of the battery is improved, so that the battery cell inside is recycled, and the utilization rate of resources is improved.
[0021] The present application has other characteristics and advantages, which will be apparent from and / or set forth in the accompanying drawings and the detailed description that follows, as well as being used to explain the specific principles of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0023] Figure 1 A structural schematic diagram of a battery is provided for the embodiments of the present application;
[0024] Figure 2 A sectional view of the battery is shown in FIG. Figure 1
[0025] Figure 3 A partial enlarged view of position A in FIG. Figure 2
[0026] Figure 4 A structural exploded view of a battery is provided for the embodiments of the present application;
[0027] Figure 5 A structural schematic diagram of the battery is shown in FIG. Figure 4
[0028] Figure 6 A structural exploded view of the battery is shown in FIG. Figure 4
[0029] Figure 7 A partial enlarged view of position B in FIG. Figure 6
[0030] Figure 8 The structure schematic view of the pole post provided by the embodiment of the present application after the sliding slot is cut open.
[0031] Reference signs:
[0032] 1, shell; 11, opening; 2, battery cell; 21, tab; 3, battery top cover; 31, cover main body; 32, pole post; 321, sliding slot; 322, clamping groove; 33, adapter plate; 331, main body part; 3311, notch; 332, clamping part; 333, safety structure; 34, insulating part. DETAILED DESCRIPTION
[0033] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.
[0034] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0035] It should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like 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, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0036] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.
[0037] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments.
[0038] Please see Figures 1 to 7The utility model embodiment provides a kind of battery, the battery includes shell 1, electric core 2 and battery top cover 3, wherein, shell 1 is provided with opening 11, electric core 2 is loaded into shell 1 from opening 11, battery top cover 3 seals and is connected with the tab 21 led out on electric core 2 to the positive pole or negative pole of electric core 2 is led out to battery top cover 3.
[0039] Wherein, battery top cover 3 specifically includes cover plate main body 31 and pole 32, cover plate main body 31 is used to seal the above-mentioned opening 11, pole 32 and cover plate main body 31 are insulatedly connected, to avoid the problem that cover plate main body 31 conducts electricity and causes electric core 2 short circuit, tab 21 is connected with adapter piece 33, adapter piece 33 and pole 32 adopt the mode of buckle connection, in other words, the indirect connection of tab 21 on electric core 2 and pole 32 is realized by the switching of adapter piece 33.Using this scheme, when assembling battery, adapter piece 33 and the tab 21 on electric core 2 can be welded in advance, and pole 32 is connected on cover plate main body 31 in advance, then electric core 2 with adapter piece 33 is loaded into shell 1, then cover plate main body 31 with pole 32 and adapter piece 33 are connected by buckle connection, the assembly of battery can be quickly completed, the welding between pole 32 and adapter piece 33 of this scheme is not needed, the assembly efficiency of battery can be greatly improved by the mode of buckle connection, and it is also favorable for reducing the disassembly difficulty of battery, improve the disassembly efficiency of battery, to facilitate the recycling of internal electric core 2, improve the utilization rate of resources.
[0040] This paragraph specifically supplements the above paragraph, cover plate main body 31 and pole 32 are connected with insulating piece 34, insulating piece 34 is annularly arranged on the periphery of pole 32, to insulate and separate pole 32 and cover plate main body 31, to realize the insulating connection between pole 32 and cover plate main body 31.In other embodiments, cover plate main body 31 can be a plastic piece with insulation, at this time, the outer periphery of pole 32 does not need to be provided with insulating piece 34 and can be directly mounted on cover plate main body 31, at this time, the insulating connection between pole 32 and cover plate main body 31 can also be realized.
[0041] Please see Figures 1 to 8 Pole 32 is slidably connected with adapter piece 33 along the first direction X, that is, when installing, only cover plate main body 31 with pole 32 needs to be slid along the first direction X, when cover plate main body 31 is slid in place, pole 32 will be buckled with adapter piece 33, at this time, the assembly of battery top cover 3 is completed, using this structure design, the assembly efficiency of battery top cover 3 can be further improved.In this embodiment, the first direction X is preferably parallel to the length direction of cover plate main body 31, in other embodiments, the first direction X can also be parallel to the width direction of cover plate main body 31.
[0042] Please see Figure 7 AndFigure 8 The one of the pole post 32 facing the battery cell 2 is provided with a sliding groove 321 for the adapter piece 33 to slide in the first direction X, and the sliding groove 321 is provided with a clamping groove 322, while the adapter piece 33 comprises a main body part 331 and a clamping part 332 with elasticity connected to each other, the main body part 331 is used to connect with the pole lug 21, and the clamping part 332 is provided to be clamped with the clamping groove 322 in the sliding groove 321. With this structure design, the clamping connection and the sliding connection between the adapter piece 33 and the pole post 32 can be realized at the same time, and the structure is simple. In other embodiments, the sliding groove 321 and the clamping groove 322 can also be provided on the adapter piece 33, and the clamping part 332 is correspondingly provided on the pole post 32, at this time, the clamping connection and the sliding connection between the adapter piece 33 and the pole post 32 can also be realized.
[0043] Please refer to Figure 7 and Figure 8 The length direction of the clamping part 332 extends along the first direction X, thereby increasing the elasticity of the clamping part 332, reducing the difficulty of the clamping part 332 sliding into the sliding groove 321, thereby improving the smoothness of the mutual sliding of the adapter piece 33 and the pole post 32, and at the same time, it is also beneficial to improve the reliability of the abutting of the clamping part 332 and the groove wall of the clamping groove 322, that is, to improve the reliability of the electrical connection of the pole post 32 and the adapter piece 33. In addition, when the clamping part 332 is clamped in the clamping groove 322, the contact surface between the clamping part 332 and the clamping groove 322 is an arc surface, which facilitates the extraction of the cover body 31 with the pole post 32 in the opposite direction of the first direction X, thereby further reducing the difficulty of disassembling the battery top cover 3 and improving the disassembling efficiency of the battery top cover 3.
[0044] Please refer to Figure 7 and Figure 8 The above-mentioned clamping groove 322 is provided on the two groove walls opposite in the second direction Y in the sliding groove 321, the adapter piece 33 comprises two clamping parts 332 spaced apart in the second direction Y, the two clamping parts 332 are slid into the sliding groove 321 in the opposite direction of the first direction X, and each clamping part 332 corresponds to each clamping groove 322 and is clamped with each other, through such design, the reliability of the mutual clamping connection of the adapter piece 33 and the pole post 32 can be further improved, and the reliability of the electrical connection of the adapter piece 33 and the pole post 32 can be further improved.
[0045] Please refer to Figure 7, based on the structure design that the buckle part 332 extends to the first direction X, by increasing the cutting amount of the connection between the buckle part 332 and the main body part 331, it is beneficial to form an insurance structure 333 between the buckle part 332 and the main body part 331, when the battery is in thermal runaway, the high temperature inside the battery can timely fuse this insurance structure 333, so that the connection between the adapter sheet 33 and the pole 32 can be timely cut off, thereby making the battery timely switch to the open circuit state, and further reducing the risk of battery explosion.
[0046] Please refer to Figures 1 to 7 The battery top cover 3 of the embodiment specifically includes two pole columns 32 and two adapter sheets 33, both of the two pole columns 32 are provided with the above-mentioned sliding groove 321, both of the two adapter sheets 33 are provided with the above-mentioned buckle part 332, the two adapter sheets 33 and the two pole columns 32 are one-to-one corresponding and clamped with each other along the first direction X, one of the two adapter sheets 33 is used for connecting with the positive pole lug 21, and the other one is used for connecting with the negative pole lug 21, that is, one of the two pole columns 32 is a positive pole column, and the other one is a negative pole column. Specifically, the main body part 331 in one of the two adapter sheets 33 is provided with a notch 3311, the notch 3311 is recessed to the first direction X and is used for inserting the pole column 32, and the buckle part 332 on this adapter sheet 33 is protruded in the notch 3311 and extends along the opposite direction of the first direction X, so that this adapter sheet 33 forms a structure with a concave shape. The buckle part 332 and the main body part 331 in the other adapter sheet 33 are arranged adjacent to each other along the first direction X, so that this adapter sheet 33 forms a structure with a convex shape.
[0047] Please refer to Figure 3 and Figure 4 The side of the adapter sheet 33 away from the battery cell 2 (which can be understood as the top surface of the adapter sheet 33) is arranged to be connected with the pole lug 21, the distance between the side of the cover plate main body 31 facing the battery cell 2 (which can be understood as the bottom surface of the cover plate main body 31) and the side of the adapter sheet 33 away from the battery cell 2 (which can be understood as the top surface of the adapter sheet 33) is A, and the thickness of the pole lug 21 is B (not shown in the figure), and A is designed to be greater than B in the scheme. With such a design, when the pole lug 21 is welded on the top surface of the adapter sheet 33 and more internal space is left for the battery cell 2 to use, by designing A to be greater than B, the cover plate main body 31 with the pole column 32 will not interfere with the pole lug 21 already welded on the top surface of the adapter sheet 33 when sliding along the first direction X, that is, the pole lug 21 will not be damaged when the cover plate main body 31 is assembled or disassembled along the first direction X, thereby ensuring the high reliability of the electrical connection between the battery cell 2 and the adapter sheet 33.
[0048] The application also provides a power consuming device using the above battery. The power consuming device can be in various forms, such as a mobile phone, a portable device, a notebook computer, an electric vehicle, an electric automobile, a ship, a spacecraft, an electric toy, an electric tool, or various household appliances, etc. The spacecraft includes an airplane, a rocket, a space shuttle, a spacecraft, etc. The electric toy includes a stationary or mobile electric toy, such as a game machine, an electric automobile toy, an electric ship toy, an electric airplane toy, etc. The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembling electric tool, and a railway electric tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact electric drill, a concrete vibrator, and an electric planer, etc.
[0049] The above is only a preferred embodiment of the present application, and only the technical principle of the present application is described. These descriptions are only for explaining the principle of the present application, and cannot be interpreted as a limitation on the protection scope of the present application in any way. Based on the above explanation, any modification, equivalent replacement, and improvement within the spirit and principle of the present application, and other specific embodiments of the present application that can be thought of by those skilled in the art without creative labor, should be included in the protection scope of the present application.
Claims
1. A battery, characterized by, The battery top cover (3) includes a cover plate body (31) and a pole (32), the cover plate body (31) seals the opening (11), the pole (32) is insulatedly connected with the cover plate body (31), and the pole (32) is buckled with the adapter sheet (33).
2. The battery of claim 1, wherein, The pole (32) is slidably connected with the adapter sheet (33) along a first direction, and the first direction is parallel to the length direction of the cover plate body (31).
3. The battery of claim 2, wherein the cathode comprises a lithium metal oxide. One side of the pole (32) facing the battery cell (2) is provided with a sliding groove (321) for the adapter sheet (33) to slide in along the first direction, and a clamping groove (322) is arranged in the sliding groove (321), the adapter sheet (33) includes a main body part (331) and a clamping part (332) with elasticity connected with each other, the main body part (331) is connected with the pole lug (21), and the clamping part (332) is arranged to be clamped with the clamping groove (322) in the sliding groove (321).
4. The battery of claim 3, wherein the cathode is a lithium cobalt oxide cathode. The main body part (331) is provided with a notch (3311) recessed along the first direction for the pole (32) to be inserted, and the clamping part (332) is protruded in the notch (3311) and extends along the opposite direction of the first direction.
5. The battery of claim 3, wherein the cathode comprises a cathode active material, a cathode binder, and a cathode conductive agent. The clamping part (332) and the main body part (331) are arranged adjacent to each other along the first direction, and the clamping part (332) extends along the opposite direction of the first direction.
6. The battery of claim 3, wherein the cathode comprises a lithium cobalt oxide. The clamping grooves (322) are arranged on two groove walls opposite to each other in a second direction in the sliding groove (321), the adapter sheet (33) includes two clamping parts (332) arranged at intervals along the second direction, the two clamping parts (332) are slid into the sliding groove (321) along the opposite direction of the first direction, and each clamping part (332) corresponds to each clamping groove (322) and is clamped with each other.
7. The battery of claim 3, wherein the cathode comprises a lithium cobalt oxide. The clamping part (332) and the main body part (331) are connected with a safety structure (333).
8. The battery of claim 3, wherein the cathode comprises a lithium cobalt oxide. The battery top cover includes two poles (32) and two adapter sheets (33), the two poles (32) are provided with sliding grooves (321), the two adapter sheets (33) are provided with clamping parts (332), the adapter sheet (33) and the pole (32) are correspondingly clamped with each other along the first direction, one of the adapter sheets (33) is connected with the pole lug of the positive electrode, and the other of the adapter sheets (33) is connected with the pole lug of the negative electrode.
9. The battery of claim 2, wherein the cathode comprises a lithium cobalt oxide. One side of the adapter sheet (33) away from the battery cell (2) is connected with the pole lug (21), the distance between one side of the cover plate body (31) facing the battery cell (2) and one side of the adapter sheet (33) away from the battery cell (2) is A, the thickness of the pole lug (21) is B, and A is greater than B.
10. An electric device, characterized by The battery includes any one of claims 1 to 9.