Battery and battery assembly

Abstract

The utility model provides a kind of battery and battery assembly, in the battery, glue shell includes tubular main body and the positioning structure being set in tubular main body;Electric core unit is placed in tubular main body, and with the abutment of positioning structure;The end face of the first end of tubular main body is equipped with mounting hole, and the second end of tubular main body is open end;The first end of electric core unit is exposed outside tubular main body by mounting hole, and the second end of electric core unit is located in open end.In the utility model, positioning structure can provide guiding positioning for electric core unit during placement, can effectively avoid the misplacement of electric core unit, so that electric core unit is smoothly and stably placed in tubular main body, i.e.glue shell;Positioning structure can provide support limit for electric core unit after placement is completed, effectively prevent electric core unit from shaking inside glue shell, improve its stability, so as to facilitate the use of automatic sealing equipment to seal, to improve the purpose of battery assembly speed, improve the production efficiency of battery.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery and battery assembly. Background Technology

[0002] Currently, batteries mainly consist of battery cells and casings. During the battery production process, battery cells are often placed directly inside the casing. However, battery cells are prone to shaking inside the casing, resulting in poor stability. Furthermore, misalignment of battery cells can occur during placement, making it impossible to use automated sealing equipment for sealing. This leads to slower battery assembly speeds and affects battery production efficiency. Summary of the Invention

[0003] This invention provides a battery and battery assembly to solve the problem of low production efficiency in existing batteries.

[0004] A battery, comprising a cell unit and a housing;

[0005] The housing includes a tubular body and a positioning structure disposed within the tubular body;

[0006] The battery cell unit is placed inside the tubular body and abuts against the positioning structure;

[0007] The first end face of the tubular body is provided with a mounting hole, and the second end of the tubular body is an open end;

[0008] The first end of the battery cell unit passes through the mounting hole and is exposed outside the tubular body, while the second end of the battery cell unit is located inside the open end.

[0009] Preferably, the positioning structure is detachably installed inside the tubular body, or the positioning structure and the tubular body are integrally formed.

[0010] Preferably, the positioning structure includes at least two stiffening plates;

[0011] At least two of the stiffeners are spaced apart along the circumferential direction of the tubular body to form a positioning space for placing the battery cell unit.

[0012] Preferably, each of the stiffeners includes a first body disposed on the inner wall of the tubular body and a second body extending from one end of the first body away from the open end in a direction away from the tubular body;

[0013] The second main body cooperates with the first main body to form a stepped groove, and at least two of the stepped grooves cooperate to form an anti-misalignment space for adjusting the battery cell unit.

[0014] Preferably, the first body has a first chamfer at one end near the opening, and the second body has a second chamfer at one end near the opening;

[0015] One side of the second chamfer is flush with the side of the second body away from the first body, and the other side of the second chamfer is flush with the side of the second body away from the tubular body.

[0016] Preferably, a first heat-melting section is provided at the mounting hole for heat-melting sealing of the first end of the tubular body;

[0017] The open end is provided with a second heat-melting section for heat-melting and sealing the second end of the tubular body.

[0018] Preferably, the battery further includes a first sealing member and a second sealing member, wherein the first sealing member is installed at the mounting hole and is used to seal the first end of the tubular body;

[0019] The second sealing element is installed at the open end and is used to seal the second end of the tubular body.

[0020] Preferably, the battery cell unit includes a battery cell body, a positive terminal, and a negative terminal;

[0021] The positive terminal is connected to the positive electrode of the cell body via a first connecting nickel strip, and the negative terminal is connected to the negative electrode of the cell body via a second connecting nickel strip.

[0022] Preferably, the battery is a cylindrical battery, the cell unit is a cylindrical structure, and the tubular body is a cylindrical structure.

[0023] A battery assembly includes a positioning housing and the battery;

[0024] The positioning shell is detachably mounted on the worktable of the sealing equipment;

[0025] The battery is placed inside the positioning housing.

[0026] The battery provided in this embodiment of the utility model has a positioning structure that can guide and position the cell unit during placement, effectively preventing misalignment of the cell unit and allowing it to be placed smoothly and stably inside the tubular body, i.e., the casing. After placement, the positioning structure can provide support and limit the cell unit, effectively preventing it from shaking inside the casing and improving its stability. This facilitates sealing with automated sealing equipment, thereby increasing the battery assembly speed and improving battery production efficiency. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is an exploded view of a battery in one embodiment of this utility model;

[0029] Figure 2 This is an axonometric view of the rubber shell in one embodiment of the present invention;

[0030] Figure 3 This is a cross-sectional view of the rubber shell in one embodiment of this utility model.

[0031] Among them, 1. Battery cell unit; 11. Battery cell body; 12. Positive terminal; 13. Negative terminal; 14. First connecting nickel strip; 15. Second connecting nickel strip; 16. Positive electrode pad; 17. Negative electrode pad; 2. Plastic shell; 21. Tubular body; 211. End panel; 212. Tube wall; 22. Positioning structure; 221. Rib; 2211. First body; 2212. Second body; 2213. First chamfer; 2214. Second chamfer; 23. Mounting hole; 3. Positioning shell. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0033] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] This utility model provides a battery, referring to... Figure 1 and Figure 2 The battery includes a cell unit 1 and a housing 2; the housing 2 includes a tubular body 21 and a positioning structure 22 disposed inside the tubular body 21; the cell unit 1 is placed inside the tubular body 21 and abuts against the positioning structure 22; the end face of the first end of the tubular body 21 is provided with a mounting hole 23, and the second end of the tubular body 21 is an open end; the first end of the cell unit 1 passes through the mounting hole 23 and is exposed outside the tubular body 21, and the second end of the cell unit 1 is located inside the open end.

[0036] As an example, the battery is, but is not limited to, a nickel-metal hydride battery, specifically comprising a cell unit 1 and a housing 2, with the cell unit 1 placed inside the housing 2 to achieve rapid battery assembly. The housing 2 includes a tubular body 21 for holding the cell unit 1, and the positioning structure 22 disposed within the tubular body 21 to provide positioning for the cell unit 1. A mounting hole 23 is provided on the end face of the first end of the tubular body 21, and the second end of the tubular body 21 is an open end. Specifically, the tubular body 21 includes an end panel 211 and a tube wall 212. The tube wall 212 is a component that extends from the periphery of the end panel 211 in a direction perpendicular to the end panel 211. The mounting hole 23 is provided on the end panel 211, and the positioning structure 22 is provided on the inner wall of the tube wall 212. During installation, the battery cell 1 is inserted into the tubular body 21 from the open end. The first end of the battery cell 1 passes through the mounting hole 23 and is exposed outside the tubular body 21. The second end of the battery cell 1 is located inside the open end, so that the battery cell 1 can be completely placed inside the housing 2. The battery cell 1 is placed inside the tubular body 21, and the battery cell 1 abuts against the positioning structure 22. In this configuration, the positioning structure 22 can provide guidance and positioning for the battery cell 1 during placement, which can effectively prevent the battery cell 1 from being misaligned, so that the battery cell 1 can be placed smoothly and stably inside the tubular body 21, i.e., the housing 2. After placement, the positioning structure 22 can provide support and limit for the battery cell 1, effectively preventing the battery cell 1 from shaking inside the housing 2, improving its stability, and thus facilitating the use of automated sealing equipment for sealing, thereby increasing the battery assembly speed and improving battery production efficiency.

[0037] In one embodiment, reference is made to Figure 2 The positioning structure 22 can be detachably installed inside the tubular body 21, or the positioning structure 22 and the tubular body 21 are integrally formed.

[0038] As an example, the positioning structure 22 has two design options. The first type of positioning structure 22 is an independent structural component that can be detachably installed inside the tubular body 21 by means of snap-fit ​​or adhesive bonding. For example, a slot is provided on the inner wall of the tubular body 21, and the positioning structure 22 is snapped into the slot, which facilitates the installation and removal of the positioning structure 22. The second type of positioning structure 22 is an integrally formed structure with the tubular body 21. In this way, when manufacturing the shell 2, the tubular body 21 and the positioning structure 22 can be made at the same time, which can save parts processing time and improve the production efficiency of the battery.

[0039] In one embodiment, reference is made to Figure 2 The positioning structure 22 includes at least two stiffeners 221; the at least two stiffeners 221 are spaced apart along the circumferential direction of the tubular body 21 to form a positioning space for placing the battery cell unit 1.

[0040] As an example, the specific structure of the positioning structure 22 is introduced. The positioning structure 22 includes at least two stiffening plates 221. During installation, the at least two stiffening plates 221 are spaced apart along the circumferential direction of the tubular body 21 to form a positioning space for placing the battery cell unit 1. In this way, the at least two stiffening plates 221 can provide guidance and positioning for the battery cell unit 1 during placement. The positioning space formed by the at least two stiffening plates 221 can effectively prevent the battery cell unit 1 from being misaligned, so that the battery cell unit 1 can be placed smoothly and stably in the tubular body 21, i.e., the housing 2. After placement, the at least two stiffening plates 221 can provide support and limit for the battery cell unit 1, which can effectively prevent the battery cell unit 1 from shaking inside the housing 2, improve its stability, and facilitate the use of automated sealing equipment for sealing, thereby increasing the battery assembly speed and improving the battery production efficiency.

[0041] In one embodiment, reference is made to Figure 2 and Figure 3 Each stiffener 221 includes a first body 2211 disposed on the inner wall of the tubular body 21 and a second body 2212 extending from the end of the first body 2211 away from the opening end in a direction away from the tubular body 21; the second body 2212 cooperates with the first body 2211 to form a stepped groove, and at least two stepped grooves cooperate to form an anti-misalignment space for adjusting the cell unit 1.

[0042] As an example, the specific structure of the stiffener 221 is introduced. Each stiffener 221 includes a first body 2211 and a second body 2212. The first body 2211 is disposed on the inner wall of the tubular body 21, and the second body 2212 is a component extending from the end of the first body 2211 away from the opening end in a direction away from the tubular body 21. The second body 2212 cooperates with the first body 2211 to form a stepped groove, and at least two stepped grooves cooperate to form an anti-misalignment space for adjusting the cell unit 1. With this configuration, the anti-misalignment space provides guidance and positioning for the cell unit 1 during placement, which can effectively prevent the cell unit 1 from being misaligned, so that the cell unit 1 can be placed smoothly and stably in the tubular body 21, i.e., the shell 2. After placement, the second body 2212 provides support and limit for the cell unit 1, which can effectively prevent the cell unit 1 from shaking inside the shell 2, improve its stability, and facilitate sealing with automated sealing equipment, thereby increasing the battery assembly speed and improving battery production efficiency.

[0043] In one embodiment, reference is made to Figure 2 and Figure 3 The first body 2211 has a first chamfer 2213 at one end near the opening, and the second body 2212 has a second chamfer 2214 at one end near the opening. One side of the second chamfer 2214 is flush with the side of the second body 2212 away from the first body 2211, and the other side of the second chamfer 2214 is flush with the side of the second body 2212 away from the tubular body 21.

[0044] As an example, a first chamfer 2213 is provided at one end of the first body 2211 near the opening, which provides guidance for the insertion of the battery cell 1 into the tubular body 21. A second chamfer 2214 is provided at one end of the second body 2212 near the opening; one side of the second chamfer 2214 is flush with the side of the second body 2212 away from the first body 2211, and the other side of the second chamfer 2214 is flush with the side of the second body 2212 away from the tubular body 21. This arrangement allows the battery cell 1 to smoothly enter the area in contact with the first body 2211 and the area in contact with the second body 2212, ensuring that the battery cell 1 can be smoothly and quickly placed into the tubular body 21.

[0045] In one embodiment, a first heat-melting part is provided at the mounting hole 23 for heat-melting sealing of the first end of the tubular body 21; a second heat-melting part is provided at the open end for heat-melting sealing of the second end of the tubular body 21.

[0046] As an example, a first battery sealing scheme is introduced. A first heat-fusion section is provided at the mounting hole 23, specifically at the first end of the tubular body 21. The first heat-fusion section is located at the mounting hole 23, and an automated sealing device heat-fuses and seals the first end of the tubular body 21. A second heat-fusion section is provided at the open end, specifically at the second end of the tubular body 21, and an automated sealing device heat-fuses and seals the second end of the tubular body 21. In this example, by heat-fussing both ends of the casing 2, rapid battery sealing is achieved, reducing the risk of leakage, improving the battery yield, and without affecting battery life and mechanical performance.

[0047] In one embodiment, the battery further includes a first sealing member and a second sealing member. The first sealing member is installed at the mounting hole 23 and is used to seal the first end of the tubular body 21. The second sealing member is installed at the open end and is used to seal the second end of the tubular body 21.

[0048] As an example, a second method for sealing the battery is introduced. The battery also includes a first sealing component and a second sealing component. During installation, the first sealing component is installed at the mounting hole 23 to seal the first end of the tubular body 21; the second sealing component is installed at the open end to seal the second end of the tubular body 21. In this example, sealing both ends of the casing 2 with independent sealing components can effectively reduce manufacturing costs compared to using automated equipment for sealing.

[0049] In one embodiment, reference is made to Figure 1 The battery cell unit 1 includes a battery cell body 11, a positive terminal 12, and a negative terminal 13;

[0050] The positive terminal 12 is connected to the positive terminal of the cell body 11 via the first connecting nickel strip 14, and the negative terminal 13 is connected to the negative terminal of the cell body 11 via the second connecting nickel strip 15.

[0051] As an example, the battery cell unit 1 includes a battery cell body 11, a positive terminal 12, and a negative terminal 13. During installation, the positive terminal 12 is connected to the positive terminal of the battery cell body 11 via a first connecting nickel strip 14, and the negative terminal 13 is connected to the negative terminal of the battery cell body 11 via a second connecting nickel strip 15. This separate nickel strip welding simplifies the positive and negative terminal connection process. Additionally, the battery cell unit 1 also includes a positive electrode pad 16 and a negative electrode pad 17. The positive electrode pad 16 is positioned between the positive terminal of the battery cell body 11 and the first connecting nickel strip 14, and the negative electrode pad 17 is positioned between the negative terminal of the battery cell body 11 and the second connecting nickel strip 15, effectively ensuring the safety of the positive and negative terminal connection.

[0052] In one embodiment, reference is made to Figure 1 and Figure 2The battery is a cylindrical battery, with cell unit 1 having a cylindrical structure and tubular body 21 having a cylindrical structure.

[0053] As an example, the battery is a cylindrical battery, specifically the cell unit 1 is a cylindrical structure, the tubular body 21 is a cylindrical structure, and the cell unit 1 is inserted into the tubular body 21 to achieve rapid battery assembly.

[0054] This utility model provides a battery assembly, referring to... Figure 1 It includes a positioning shell 3 and a battery; the positioning shell 3 is used for detachable installation on the worktable of the sealing equipment; the battery is placed inside the positioning shell 3.

[0055] As an example, the battery assembly includes a positioning shell 3 and a battery. During installation, the positioning shell 3 is detachably mounted on the worktable of the sealing equipment, and then the battery is placed inside the positioning shell 3. This positioning shell 3 can keep the battery stable and prevent the battery from shaking, so that the sealing equipment can seal the battery.

[0056] The battery is, but is not limited to, a nickel-metal hydride battery, specifically comprising a cell unit 1 and a housing 2. The cell unit 1 is placed inside the housing 2 to achieve rapid battery assembly. The housing 2 includes a tubular body 21 and a positioning structure 22. The tubular body 21 is used to hold the cell unit 1, and the positioning structure 22 is disposed inside the tubular body 21 to provide positioning for the cell unit 1. A mounting hole 23 is provided on the end face of the first end of the tubular body 21, and the second end of the tubular body 21 is an open end. Specifically, the tubular body 21 includes an end panel 211 and a tube wall 212. The tube wall 212 is a component that extends from the periphery of the end panel 211 in a direction perpendicular to the end panel 211. The mounting hole 23 is provided on the end panel 211, and the positioning structure 22 is provided on the inner wall of the tube wall 212. During installation, the battery cell 1 is inserted into the tubular body 21 from the open end. The first end of the battery cell 1 passes through the mounting hole 23 and is exposed outside the tubular body 21. The second end of the battery cell 1 is located inside the open end, so that the battery cell 1 can be completely placed inside the housing 2. The battery cell 1 is placed inside the tubular body 21, and the battery cell 1 abuts against the positioning structure 22. In this configuration, the positioning structure 22 can provide guidance and positioning for the battery cell 1 during placement, which can effectively prevent the battery cell 1 from being misaligned, so that the battery cell 1 can be placed smoothly and stably inside the tubular body 21, i.e., the housing 2. After placement, the positioning structure 22 can provide support and limit for the battery cell 1, effectively preventing the battery cell 1 from shaking inside the housing 2, improving its stability, and thus facilitating the use of automated sealing equipment for sealing, thereby increasing the battery assembly speed and improving battery production efficiency.

[0057] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A battery, characterized in that, Includes battery cells and housings; The housing includes a tubular body and a positioning structure disposed within the tubular body; The battery cell unit is placed inside the tubular body and abuts against the positioning structure; The first end face of the tubular body is provided with a mounting hole, and the second end of the tubular body is an open end; The first end of the battery cell unit passes through the mounting hole and is exposed outside the tubular body, while the second end of the battery cell unit is located inside the open end.

2. The battery according to claim 1, characterized in that, The positioning structure can be detachably installed inside the tubular body, or the positioning structure and the tubular body are integrally formed.

3. The battery according to claim 1, characterized in that, The positioning structure includes at least two stiffening plates; At least two of the stiffeners are spaced apart along the circumferential direction of the tubular body to form a positioning space for placing the battery cell unit.

4. The battery according to claim 3, characterized in that, Each of the aforementioned stiffeners includes a first body disposed on the inner wall of the tubular body and a second body extending from one end of the first body away from the open end in a direction away from the tubular body; The second main body cooperates with the first main body to form a stepped groove, and at least two of the stepped grooves cooperate to form an anti-misalignment space for adjusting the battery cell unit.

5. The battery according to claim 4, characterized in that, The first main body has a first chamfer at one end near the opening, and the second main body has a second chamfer at one end near the opening; One side of the second chamfer is flush with the side of the second body away from the first body, and the other side of the second chamfer is flush with the side of the second body away from the tubular body.

6. The battery according to claim 1, characterized in that, The mounting hole is provided with a first heat-melting section for heat-melting sealing of the first end of the tubular body; The open end is provided with a second heat-melting section for heat-melting and sealing the second end of the tubular body.

7. The battery according to claim 1, characterized in that, The battery also includes a first sealing member and a second sealing member. The first sealing member is installed at the mounting hole and is used to seal the first end of the tubular body. The second sealing element is installed at the open end and is used to seal the second end of the tubular body.

8. The battery according to claim 1, characterized in that, The battery cell unit includes a battery cell body, a positive terminal, and a negative terminal; The positive terminal is connected to the positive electrode of the cell body via a first connecting nickel strip, and the negative terminal is connected to the negative electrode of the cell body via a second connecting nickel strip.

9. The battery according to claim 1, characterized in that, The battery is a cylindrical battery, the cell unit is a cylindrical structure, and the tubular body is a cylindrical structure.

10. A battery assembly, characterized in that, Includes a positioning shell and the battery as described in any one of claims 1-9; The positioning shell is detachably mounted on the worktable of the sealing equipment; The battery is placed inside the positioning housing.

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