Battery packaging clamp and battery packaging device
By designing a fixture for battery packaging, the wrinkle problem caused by unconstrained aluminum-plastic films during thermal composite is solved, and a more efficient battery packaging effect and higher yield rate are achieved.
Patent Information
- Application Number
- CN202420162697.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-23
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-01-23
AI Technical Summary
In the prior art, aluminum-plastic films are not restricted in the thermal composite process, and are prone to wrinkles during battery packaging, affecting the packaging effect and causing packaging failure.
A battery packaging fixture is designed, including a relatively arranged first clamp and a second clamp, and the clamping member is provided with a packaging port and a clamping area for corresponding to the sealing area of the battery and through the clamping member. The combination of use of the battery can be achieved, and the battery can be positioned and clamped, and the sealing area can be encapsulated through the heat seal through the packaging port to reduce the occurrence of wrinkles.
It effectively reduces the probability of wrinkles in the aluminum-plastic film during packaging, improves the flatness of the packaging area, and improves the packaging effect and yield of the battery.
Smart Images
Figure CN222462984U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of battery production and manufacturing, and specifically relates to a battery packaging fixture and a battery packaging device. Background Art
[0002] As a new type of secondary battery, lithium-ion battery has the advantages of high energy density and power density, high operating voltage, light weight, small size, long cycle life, good safety, and green environmental protection. It has broad application prospects in portable appliances, power tools, large-scale energy storage, electric transportation power supply, etc.
[0003] The safety performance and shape plasticity of soft-pack lithium-ion batteries mainly come from their own packaging material, aluminum-plastic film, which is a packaging material composed of three layers of nylon, metal aluminum layer, and polypropylene layer (Polymer polypropylene, PP). During the packaging process, the innermost PP layer fuses with each other under appropriate temperature control, and after cooling, a closed internal space of the battery cell is formed to prevent the electrolyte inside the battery cell from contacting with external air and moisture, thereby ensuring the quality and performance of the battery.
[0004] In the prior art, the battery includes an outer unsealed area, a sealed area, an inner unsealed area and a cell containing area. When the battery is packaged, a clamp is needed to position the battery. However, in order to facilitate the packaging of the head, the clamp is generally clamped in the cell containing area of the battery to ensure the distance between the sealed area and the battery body. However, since the aluminum-plastic film is a relatively soft material, if it is not constrained during the thermal composite process, wrinkles are likely to appear during packaging, which will affect the packaging effect of the aluminum-plastic film and cause the aluminum-plastic film packaging to fail. Utility Model Content
[0005] The utility model aims to provide a battery packaging fixture to address the deficiencies of the prior art, so as to solve the problem that the aluminum-plastic film is relatively soft and, if not constrained during the thermal composite process, wrinkles are easily formed during packaging, which affects the packaging effect and causes packaging failure.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A battery packaging fixture comprises a first clamping member and a second clamping member arranged opposite to each other, wherein the first clamping member has a first clamping area, and the second clamping member has a second clamping area corresponding to the first clamping area, and both the first clamping area and the second clamping area are provided with packaging openings, and the packaging openings are used to correspond to the sealing area position of the battery.
[0008] Preferably, along the length direction of the battery packaging clamp, a first unsealed area and a second unsealed area are further provided on the first clamping area and the second clamping area, and the packaging port is provided between the first unsealed area and the second unsealed area.
[0009] Preferably, the width of the second unsealed area is smaller than the width of the first unsealed area.
[0010] Preferably, the first clamping member further has a third clamping area, the second clamping member further has a fourth clamping area corresponding to the third clamping area, the first clamping area is arranged at at least one end of the third clamping area, and the second clamping area is arranged at at least one end of the fourth clamping area.
[0011] Preferably, a first avoidance groove is provided on a side of the first clamping area facing the second clamping area, and a second avoidance groove is provided on a side of the second clamping area facing the first clamping area, and positions of the first avoidance groove and the second avoidance groove correspond to each other.
[0012] Preferably, the distance between the first avoidance groove and the second avoidance groove is L, satisfying the relationship: 2a+2b+c≤L, wherein a is the thickness of a single-layer aluminum-plastic film of the battery, b is the thickness of a single-layer tab glue of the battery, and c is the thickness of the tab of the battery.
[0013] Preferably, along the thickness direction of the battery packaging fixture, the first avoidance groove and the second avoidance groove both include a first accommodating area and a second accommodating area, the second accommodating area is connected to the first accommodating area, and the width of the second accommodating area is smaller than the width of the first accommodating area.
[0014] Preferably, a limiting protrusion is provided on an edge of the first clamping member and / or an edge of the second clamping member, the limiting protrusion is located between the first clamping member and the second clamping member, and a battery accommodating space is formed between the first clamping member and the second clamping member.
[0015] Preferably, along the width direction of the battery packaging fixture, the limiting protrusions are located on both sides of the first clamping member and / or on both sides of the second clamping member.
[0016] Another object of the present invention is to provide a battery packaging device, including the battery packaging fixture described above in the specification.
[0017] The beneficial effect of the utility model is that the battery packaging fixture of the utility model is used by the cooperation of the first clamping member and the second clamping member, the first clamping member and the second clamping member are arranged relatively, and the first clamping member and the second clamping member are used to cooperate with each other to clamp the battery, so as to realize the positioning of the battery and prevent the battery from being displaced during the packaging process. By setting the first clamping area on the first clamping member and the second clamping area on the second clamping member, the first clamping member and the second clamping member are both provided with a packaging port. During the packaging process, the first clamping area and the second clamping area are used to cooperate with each other to clamp the packaging area of the battery, and the heat sealer can pass through the packaging port to package the sealing area of the battery, effectively reducing the probability of wrinkles generated when packaging the battery, improving the flatness of the aluminum-plastic film in the packaging area of the battery, thereby improving the packaging effect of the battery and increasing the battery yield. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
[0019] Figure 1 This is one of the structural schematic diagrams of the battery packaging fixture of the utility model.
[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the battery packaging fixture of the utility model.
[0021] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.
[0022] Figure 4 This is the second structural schematic diagram of the battery packaging fixture of the present utility model.
[0023] Figure 5 It is a structural schematic diagram of the battery of the utility model.
[0024] Figure 6 It is a schematic diagram of the local structure of the battery of the utility model.
[0025] The reference numerals are described as follows:
[0026] 100. Battery packaging fixture;
[0027] 10. First clamping member; 11. First clamping area; 111. First avoidance groove; 12. Third clamping area;
[0028] 20. second clamping member; 21. second clamping area; 211. second avoidance groove; 22. fourth clamping area;
[0029] 30. Packaging port;
[0030] 40. The first unsealed area;
[0031] 50. The second unsealed area;
[0032] 60. The first accommodation area;
[0033] 70. Second accommodation area;
[0034] 80. Limiting protrusion;
[0035] 90. Battery storage space;
[0036] 200, battery; 201, outer unsealed area; 202, sealed area; 203, inner unsealed area; 204, battery cell storage area; 205, tab; 206, tab glue; 207, aluminum-plastic film;
[0037] d, length direction of the battery packaging fixture; e, width direction of the battery packaging fixture; f, thickness direction of the battery packaging fixture; g, width of the first unsealed area; h, width of the second unsealed area. DETAILED DESCRIPTION
[0038] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.
[0039] Furthermore, the terms “first”, “second”, etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.
[0040] In the utility model, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.
[0041] The following is combined with Figures 1 to 6 The utility model is further described in detail, but it is not intended to limit the utility model.
[0042] The battery packaging fixture 100 of the embodiment of the utility model includes a first clamping member 10 and a second clamping member 20 arranged opposite to each other, the first clamping member 10 has a first clamping area 11, the second clamping member 20 has a second clamping area 21 corresponding to the first clamping area 11, and the first clamping area 11 and the second clamping area 21 are both provided with a packaging opening 30, and the packaging opening 30 is used to correspond to the position of the sealing area 202 of the battery 200.
[0043] Compared with the prior art, the battery packaging fixture 100 of the embodiment of the utility model uses a first clamping member 10 and a second clamping member 20 in cooperation with each other. The first clamping member 10 and the second clamping member 20 are relatively arranged, and the first clamping member 10 and the second clamping member 20 are used to cooperate with each other to clamp the battery 200 to achieve positioning of the battery 200 and prevent the battery 200 from being displaced during the packaging process. By setting a first clamping area 11 on the first clamping member 10, and setting a second clamping area 21 on the second clamping member 20, the first clamping member 10 and the second clamping member 20 are both provided with a packaging opening 30. During the packaging process, the first clamping area 11 and the second clamping area 21 are used to cooperate with each other to clamp the packaging area of the battery 200, and the heat sealing member can pass through the packaging opening 30 to package the sealing area 202 of the battery 200, thereby effectively reducing the probability of wrinkles generated when packaging the battery 200, improving the flatness of the aluminum-plastic film 207 in the packaging area of the battery 200, thereby improving the packaging effect of the battery 200 and increasing the yield rate of the battery 200.
[0044] In some embodiments, along the length direction d of the battery packaging fixture 100, the first clamping area 11 and the second clamping area 21 are further provided with a first unsealed area 40 and a second unsealed area 50, and the packaging opening 30 is provided between the first unsealed area 40 and the second unsealed area 50. By providing the first unsealed area 40 and the second unsealed area 50, the packaging opening 30 is provided between the first unsealed area 40 and the second unsealed area 50, and when the first clamping member 10 and the second clamping member 20 cooperate to clamp the battery 200, the first unsealed area 40 is used to correspond to the outer unsealed area 201 of the battery 200, and the second unsealed area 50 is used to correspond to the inner unsealed area 203 of the battery 200, so that the battery packaging fixture 100 can better adapt to the size and shape of the battery 200, thereby improving the positioning accuracy of the battery 200, so as to ensure the accuracy and consistency of packaging the battery 200.
[0045] Further, the width h of the second unsealed area 50 is smaller than the width g of the first unsealed area 40. Specifically, the width h of the second unsealed area 50 is 1 to 3 mm narrower than the width g of the first unsealed area 40. For example, the width h of the second unsealed area 50 is 1 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2 mm, 2.3 mm, 2.6 mm or 3 mm narrower than the width g of the first unsealed area 40, but is not limited to the listed values, and other values within the numerical range are also applicable.
[0046] In some embodiments, the first clamping member 10 further has a third clamping area 12, the second clamping member 20 further has a fourth clamping area 22 corresponding to the third clamping area 12, the first clamping area 11 is arranged at least one end of the third clamping area 12, and the second clamping area 21 is arranged at least one end of the fourth clamping area 22. Through the arrangement of the third clamping area 12 and the fourth clamping area 22, the third clamping area 12 and the fourth clamping area 22 are used to cooperate with the battery cell accommodating area 204 of the battery 200, which can further enhance the clamping stability of the battery packaging fixture 100 on the battery 200. By adding the third clamping area 12 and the fourth clamping area 22, the position of the battery 200 can be better fixed to prevent it from moving or deforming during the thermal composite process.
[0047] In some embodiments, a first avoidance groove 111 is provided on the side of the first clamping area 11 facing the second clamping area 21, and a second avoidance groove 211 is provided on the side of the second clamping area 21 facing the first clamping area 11, and the positions of the first avoidance groove 111 and the second avoidance groove 211 correspond. By providing the first avoidance groove 111 and the second avoidance groove 211, when the first clamping member 10 and the second clamping member 20 clamp the battery 200, the first avoidance groove 111 and the second avoidance groove 211 can cooperate to form an avoidance space between the first clamping member 10 and the second clamping member 20, and the tab 205 of the battery 200 can be accommodated in the avoidance space to avoid pinching off or damaging the tab 205 of the battery 200.
[0048] In some embodiments, the distance between the first avoidance groove 111 and the second avoidance groove 211 is L, satisfying the relationship: 2a+2b+c≤L, wherein a is the thickness of the single-layer aluminum-plastic film 207 of the battery 200, b is the thickness of the single-layer tab glue 206 of the battery 200, and c is the thickness of the tab 205 of the battery 200. By controlling the distance L between the first avoidance groove 111 and the second avoidance groove 211, it is ensured that the tab 205 of the battery 200 can be accommodated in the avoidance space formed by the first avoidance groove 111 and the second avoidance groove 211, so as to avoid pinching off or damaging the tab 205 of the battery 200.
[0049] By controlling the distance L between the first avoidance groove 111 and the second avoidance groove 211, if L<2a+2b+c, that is, the distance L between the first avoidance groove 111 and the second avoidance groove 211 is less than the thickness of the battery 200 in the area of the pole lug 205, the pole lug 205 cannot be completely accommodated in the avoidance space formed by the first avoidance groove 111 and the second avoidance groove 211, and when the first clamping member 10 and the second clamping member 20 clamp the battery 200, it is easy to pinch off or damage the pole lug 205 of the battery 200. Therefore, when 2a+2b+c≤L, that is, the distance L between the first avoidance groove 111 and the second avoidance groove 211 is greater than or equal to the thickness of the battery 200 in the area of the pole lug 205, it is ensured that the pole lug 205 of the battery 200 can be accommodated in the avoidance space formed by the first avoidance groove 111 and the second avoidance groove 211, and the pole lug 205 of the battery 200 is avoided from being pinched off or damaged.
[0050] In some embodiments, along the thickness direction f of the battery packaging fixture 100, the first avoidance groove 111 and the second avoidance groove 211 both include a first accommodating area 60 and a second accommodating area 70, the second accommodating area 70 is connected to the first accommodating area 60, and the width of the second accommodating area 70 is smaller than the width of the first accommodating area 60. Through the coordinated use of the first accommodating area 60 and the second accommodating area 70, the first accommodating area 60 is used to accommodate the tab glue 206 of the battery 200, and the second accommodating area 70 is used to accommodate the tab 205 of the battery 200, so that the first avoidance groove 111 and the second avoidance groove 211 can better adapt to the size and shape of the tab 205 of the battery 200, thereby enabling the battery packaging fixture 100 to better adapt to the size and shape of the battery 200, thereby improving the positioning accuracy of the battery 200, so as to ensure the accuracy and consistency of the packaged battery 200. By making the width of the second accommodating area 70 smaller than the width of the first accommodating area 60 , it is prevented that the tab glue 206 of the battery 200 is squeezed during the process of clamping the battery 200 , causing the tab glue 206 to overflow and affect the packaging effect of the battery 200 .
[0051] It should be noted that by adjusting the size and shape of the first accommodating area 60 and the second accommodating area 70 , it is possible to better adapt to the requirements of different tabs 205 and tab glue 206 , thereby improving the applicability of the battery packaging fixture 100 .
[0052] In some embodiments, the edge of the first clamping member 10 and / or the edge of the second clamping member 20 is provided with a limiting protrusion 80, the limiting protrusion 80 is located between the first clamping member 10 and the second clamping member 20, and a battery accommodating space 90 is formed between the first clamping member 10 and the second clamping member 20. The setting of the limiting protrusion 80 allows the operator to more conveniently place the battery 200 into the clamping member, simplifies the operation process, and improves production efficiency. At the same time, the limiting protrusion 80 can also prevent the battery 200 from accidentally sliding out during the packaging process, improves the positioning effect of the battery 200, and improves the safety of production.
[0053] In some embodiments, along the width direction e of the battery packaging fixture 100, the limiting protrusions 80 are located on both sides of the first clamping member 10 and / or on both sides of the second clamping member 20. By arranging the limiting protrusions 80 on both sides of the first clamping member 10 and / or on both sides of the second clamping member 20, it is effectively prevented that the limiting protrusions 80 interfere with the tabs 205 of the battery 200 during the process of clamping the battery 200, thereby affecting the positioning and packaging of the battery 200.
[0054] It should be noted that the first clamping member 10 and the second clamping member 20 have the same structure.
[0055] A battery packaging device according to an embodiment of the present invention comprises the battery packaging fixture 100 according to the above embodiment.
[0056] According to the disclosure and teaching of the above description, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the above specific implementation, and any obvious improvement, replacement or modification made by the technicians in this field on the basis of the utility model belongs to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.
Claims
1. A battery packaging fixture, characterized in that: The invention comprises a first clamping member (10) and a second clamping member (20) which are arranged opposite to each other, wherein the first clamping member (10) has a first clamping area (11), and the second clamping member (20) has a second clamping area (21) corresponding to the first clamping area (11), and both the first clamping area (11) and the second clamping area (21) are provided with a sealing opening (30), and the sealing opening (30) is used to correspond to the position of a sealing area (202) of a battery (200).
2. The battery packaging fixture according to claim 1, characterized in that: Along the length direction (d) of the battery packaging fixture (100), the first clamping area (11) and the second clamping area (21) are both provided with a first unsealed area (40) and a second unsealed area (50), and the packaging opening (30) is provided between the first unsealed area (40) and the second unsealed area (50).
3. The battery packaging fixture as claimed in claim 2, characterized in that: The width (h) of the second unsealed area (50) is smaller than the width (g) of the first unsealed area (40).
4. The battery packaging fixture according to claim 1, characterized in that: The first clamping member (10) also has a third clamping area (12), the second clamping member (20) also has a fourth clamping area (22) corresponding to the third clamping area (12), the first clamping area (11) is arranged at at least one end of the third clamping area (12), and the second clamping area (21) is arranged at at least one end of the fourth clamping area (22).
5. The battery packaging fixture according to claim 1, characterized in that: A first avoidance groove (111) is provided on a side of the first clamping area (11) facing the second clamping area (21), and a second avoidance groove (211) is provided on a side of the second clamping area (21) facing the first clamping area (11), and the positions of the first avoidance groove (111) and the second avoidance groove (211) correspond.
6. The battery packaging fixture as claimed in claim 5, characterized in that: The distance between the first avoidance groove (111) and the second avoidance groove (211) is L, satisfying the relationship: 2a+2b+c≤L, wherein a is the thickness of a single-layer aluminum-plastic film (207) of the battery (200), b is the thickness of a single-layer tab glue (206) of the battery (200), and c is the thickness of a tab (205) of the battery (200).
7. The battery packaging fixture according to claim 5, characterized in that: Along the thickness direction (f) of the battery packaging fixture (100), the first avoidance groove (111) and the second avoidance groove (211) both include a first accommodating area (60) and a second accommodating area (70), the second accommodating area (70) is connected to the first accommodating area (60), and the width of the second accommodating area (70) is smaller than the width of the first accommodating area (60).
8. The battery packaging fixture according to claim 1, characterized in that: A limiting protrusion (80) is provided on the edge of the first clamping member (10) and / or the edge of the second clamping member (20); the limiting protrusion (80) is located between the first clamping member (10) and the second clamping member (20); and a battery accommodating space (90) is formed between the first clamping member (10) and the second clamping member (20).
9. The battery packaging fixture as claimed in claim 8, characterized in that: Along the width direction (e) of the battery packaging clamp (100), the limiting protrusions (80) are located on both sides of the first clamping member (10) and / or on both sides of the second clamping member (20).
10. A battery packaging device, characterized in that: A battery packaging fixture comprising the battery packaging fixture as described in any one of claims 1 to 9.