Mica paper sticking tool

Abstract

The embodiment of the utility model provides a kind of mica paper sticking tool, it is related to battery field.The mica paper sticking tool includes cover plate and profiling fixture, cover plate and profiling fixture are sealedly connected and form vacuum suction cavity, profiling fixture is provided with vacuum suction groove and suction surface, one end of vacuum suction groove is communicated with vacuum suction cavity, the other end of vacuum suction groove extends to suction surface.When needing to stick mica paper, vacuum generator is used to vacuumize vacuum suction cavity, and negative pressure is generated on suction surface by vacuum suction groove, mica paper is placed on suction surface and is adsorbed, release paper on mica paper is torn off, then the tool is moved to the position where battery package shell needs to stick mica paper, mica paper is stuck on battery package shell, and the tool is used to stick mica paper, which not only has fast operation speed, but also has no wrinkles / bubbles between the stuck mica paper and battery package shell, and the overall quality of the produced battery package is high.

Description

Technical Field

[0001] This utility model relates to the field of batteries, and more specifically, to a mica paper pasting fixture. Background Technology

[0002] When assembling a battery pack, mica paper needs to be pasted onto the corrugated inner wall of the casing. Mica paper has excellent high temperature resistance (withstanding 850-1000℃) and electrical insulation properties. Pasting mica paper onto the inner wall of the battery pack casing can serve to isolate high temperatures and provide insulation.

[0003] Currently, mica paper is mostly applied to battery pack casings manually. The process involves first fixing one end of the mica paper, then laying it along the wavy inner wall of the battery pack casing, and finally using a tool to press the mica paper firmly into each wavy groove on the inner wall of the casing. This manual process is not only slow, but also prone to wrinkles or air bubbles, affecting the overall quality of the battery pack. Utility Model Content

[0004] This invention provides a mica paper pasting fixture that can replace manual compaction of mica paper, thereby increasing work speed and improving pasting quality.

[0005] The embodiments of this utility model can be implemented as follows: An embodiment of this utility model provides a mica paper pasting fixture, which includes: Cover plate; The conforming fixture has a cover plate that is sealed to the conforming fixture to form a vacuum adsorption cavity. The conforming fixture is provided with a vacuum suction groove and an adsorption surface. One end of the vacuum suction groove is connected to the vacuum adsorption cavity, and the other end of the vacuum suction groove extends to the adsorption surface.

[0006] Optionally, the contour jig is provided with a vacuum pipeline interface, which is connected to the vacuum adsorption chamber.

[0007] Optionally, the vacuum adsorption chamber includes multiple spaced sub-adsorption chambers, with a sealed connection between adjacent sub-adsorption chambers, and each sub-adsorption chamber has a vacuum pipeline interface on its wall.

[0008] Optionally, the cover plate is provided with a protruding connector, and the contour jig is provided with a connecting strip. The protruding connector is connected to the connecting strip and divides the vacuum adsorption chamber into multiple sub-adsorption chambers.

[0009] Optionally, the end face of the profiling fixture that connects with the cover plate is provided with a groove, and a sealing element is arranged in the groove.

[0010] Optionally, the adsorption surface is a wavy curved surface, and the end of the vacuum suction groove is located in the concave area of ​​the wavy curved surface.

[0011] Optionally, the number of vacuum suction slots is multiple, and the multiple vacuum suction slots are arranged at equal intervals.

[0012] Optionally, the cross-sectional shape of the vacuum suction groove is rectangular.

[0013] Optionally, the contour jig is provided with weight reduction holes.

[0014] Optionally, a grip handle is provided on the cover plate.

[0015] The beneficial effects of this utility model embodiment: This mica paper pasting fixture includes a cover plate and a contour jig. The cover plate and the contour jig are sealed together to form a vacuum adsorption chamber. The contour jig is equipped with a vacuum suction groove and an adsorption surface. One end of the vacuum suction groove is connected to the vacuum adsorption chamber, and the other end extends to the adsorption surface. When mica paper needs to be pasted, a vacuum generator is used to evacuate the vacuum adsorption chamber, and negative pressure is generated on the adsorption surface through the vacuum suction groove. The mica paper is placed on the adsorption surface and adsorbed. The release paper on the mica paper is then peeled off. The fixture is then moved to the position on the battery pack housing where the mica paper needs to be pasted, and the mica paper is pasted onto the battery pack housing. Using this fixture to paste mica paper is not only fast, but also results in no wrinkles or air bubbles between the pasted mica paper and the battery pack housing, leading to high overall quality of the produced battery packs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the mica paper pasting fixture provided in the embodiments of this utility model for adsorbing and pasting mica paper; Figure 2 This is a first-view schematic diagram of the mica paper pasting fixture provided in an embodiment of the present invention; Figure 3 This is a schematic diagram from a second perspective of the mica paper pasting fixture provided in an embodiment of this utility model; Figure 4 This is a schematic diagram from a first perspective of the contour jig provided in an embodiment of the present invention; Figure 5 This is a schematic diagram from a second perspective of the contour jig provided in an embodiment of the present invention; Figure 6 This is a partially enlarged schematic diagram of the contour jig provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the cover plate provided in an embodiment of the present invention.

[0018] Icons: 1-Cover plate; 10-Protruding connector; 11-Holding handle; 2-Shaping fixture; 20-Vacuum suction groove; 21-Adsorption surface; 211-Concave area; 212-Convex area; 22-Vacuum pipeline interface; 23-Connecting strip; 24-Groove; 25-Weight reduction hole; 3-Vacuum adsorption chamber; 30-Sub-adsorption chamber; 4-Sealing component; 5-Mica paper; 6-Shell. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model 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 utility model.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Unless otherwise explicitly specified and limited, terms such as "setup" and "connection" should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0027] As described in the background section, the current method of attaching mica paper to the battery pack casing is mostly manual. First, one end of the mica paper is fixed to the battery pack casing, then the mica paper is laid along the wavy inner wall of the battery pack casing, and finally, a tool is used to press the mica paper firmly into each wavy groove on the inner wall of the casing. Manual operation is not only slow, but also prone to wrinkles or air bubbles when pressing and attaching the mica paper, which affects the overall quality of the battery pack.

[0028] For the reasons mentioned above, this utility model provides a mica paper pasting fixture in its embodiments, which can solve the above problems. It will be described in detail below.

[0029] Please refer to Figures 1 to 5The mica paper pasting fixture includes a cover plate 1 and a contour jig 2. The cover plate 1 and the contour jig 2 are sealed together to form a vacuum adsorption chamber 3. The contour jig 2 is provided with a vacuum suction groove 20 and an adsorption surface 21. One end of the vacuum suction groove 20 is connected to the vacuum adsorption chamber 3, and the other end of the vacuum suction groove 20 extends to the adsorption surface 21. When it is necessary to paste the mica paper 5, a vacuum generator is used to evacuate the vacuum adsorption chamber 3, and a negative pressure is generated on the adsorption surface 21 through the vacuum suction groove 20. The mica paper 5 is placed on the adsorption surface 21 and adsorbed. The release paper on the mica paper 5 is peeled off, and then the fixture is moved to the position on the battery pack housing 6 where the mica paper 5 needs to be pasted. The mica paper 5 is pasted on the battery pack housing 6. Using this fixture to paste the mica paper 5 is not only fast, but also results in no wrinkles or air bubbles between the pasted mica paper 5 and the battery pack housing 6, resulting in a high overall quality of the assembled battery pack.

[0030] Specifically, the cover plate 1 has multiple screw holes, and the contour jig 2 also has multiple screw holes. The screw holes on the contour jig 2 correspond in position and size to the screw holes on the cover plate 1. The cover plate 1 and the contour jig 2 can be connected together by tightening bolts / screws into the screw holes of the cover plate 1 and the contour jig 2. A groove 24 is provided on the end face of the contour jig 2 that connects with the cover plate 1. A sealing element 4 is arranged in the groove 24. The sealing element 4 achieves a sealed connection between the cover plate 1 and the contour jig 2, and also ensures good sealing between the vacuum adsorption chamber 3 and the outside world, which is beneficial for the vacuum generator to evacuate the vacuum adsorption chamber 3. In this embodiment, the sealing element 4 can be a rubber sealing ring. A vacuum suction groove 20 is provided along the thickness direction of the contour jig 2. The upper end of the vacuum suction groove 20 is connected to the vacuum adsorption chamber 3, and the lower end of the vacuum suction groove 20 extends to the adsorption surface 21. When the air in the vacuum adsorption chamber 3 is drawn in by the vacuum generator, a negative pressure can be generated on the adsorption surface 21 through the vacuum suction groove 20, thereby adsorbing and fixing the mica paper 5 on the adsorption surface 21.

[0031] The adsorption surface 21 is located on the side of the contour jig 2 away from the cover plate 1. The adsorption surface 21 is adapted to the inner wall surface of the battery pack housing 6. For example, if the inner wall surface of the battery pack housing 6 is a wavy curved surface, then the adsorption surface 21 of the contour jig 2 is also a wavy curved surface. If the inner wall surface of the battery pack housing 6 is a plane, then the adsorption surface 21 of the contour jig 2 is also a plane. Of course, the inner wall surface of the battery pack housing 6 (which is used to paste the mica paper 5) can be a regular surface or an irregular surface, and the corresponding adsorption surface 21 of the contour jig 2 also corresponds to the inner wall surface of the battery pack housing 6. In this embodiment, the shape of the adsorption surface 21 is not limited. In the following description, this embodiment uses the example of the adsorption surface 21 being a wavy curved surface.

[0032] refer to Figure 4The adsorption surface 21 is a continuous wavy curved surface, comprising alternating concave regions 211 and convex regions 212. The lower end opening of the vacuum suction groove 20 is located in the concave region 211 of the wavy curved surface. This allows the mica paper 5 to adhere tightly to the adsorption surface 21 when adsorbed, increasing the regularity and reliability of the adsorption and fixation of the mica paper 5. When adsorbed, the portion of the mica paper 5 in the concave region 211 is tightly adsorbed, while the portion of the mica paper 5 in the convex region 212 is pulled tightly against the convex region 212. It should be understood that if the lower end opening of the vacuum suction groove 20 is located in the convex region 212 of the wavy curved surface, the mica paper 5 cannot adhere tightly to the concave region 211.

[0033] There are multiple vacuum suction grooves 20, which are evenly spaced to generate negative pressure suction on the adsorption surface 21, so as to firmly adsorb and fix the mica paper 5.

[0034] Optionally, the cross-sectional shape of the vacuum suction groove 20 is rectangular, which provides a larger adsorption area. When adsorbing mica paper 5, this increases the adsorption surface area 21 and improves adsorption reliability. Furthermore, since the lower end opening of the vacuum suction groove 20 is located in the concave region 211 of the adsorption surface 21, the lower end opening of the vacuum suction groove 20 is crescent-shaped.

[0035] It is understood that the tooling in this embodiment is provided with a vacuum pipeline interface 22. One end of the vacuum pipeline interface 22 is connected to an external vacuum generator, and the other end of the vacuum pipeline interface 22 is connected to the vacuum adsorption chamber 3. The vacuum pipeline interface 22 can be provided on the cover plate 1 or on the contour jig 2. In this embodiment, the vacuum pipeline interface 22 is provided on the contour jig 2.

[0036] The vacuum adsorption chamber 3 can be a single unit or divided into multiple sub-adsorption chambers 30. When the vacuum adsorption chamber 3 is a single unit, one or more vacuum pipeline interfaces 22 can be provided.

[0037] refer to Figure 6 and Figure 7 When the vacuum adsorption chamber 3 is divided into multiple sub-adsorption chambers 30, each sub-adsorption chamber 30 is provided with at least one vacuum pipeline interface 22 on its chamber wall. At this time, a vacuum can be drawn on some of the sub-adsorption chambers 30, thereby generating a negative pressure on the adsorption surface 21 corresponding to that sub-adsorption chamber 30. This can be used to adsorb mica paper 5 of different lengths and sizes to meet different usage requirements.

[0038] Specifically, the surface of the cover plate 1 is provided with multiple protruding members 10, which are rectangular strips and fixed to the cover plate 1. The contour jig 2 is provided with multiple connecting strips 23, which are also rectangular strips and are disposed inside the vacuum adsorption chamber 3. Each connecting strip 23 corresponds to one of the protruding members 10. When the cover plate 1 is connected to the contour jig 2, the multiple connecting strips 23 are in face-to-face contact with the multiple protruding members 10, thereby dividing the vacuum adsorption chamber 3 into multiple sub-adsorption chambers 30. Adjacent sub-adsorption chambers 30 can be sealed together. Corresponding threaded holes are provided on the multiple connecting strips 23 and the multiple protruding members 10. The connecting strips 23 and the protruding members 10 are connected together by bolts / screws. This increases the reliability and stability of the connection between the cover plate 1 and the contour jig 2, and also increases the sealing of adjacent sub-adsorption chambers 30. Of course, the multiple connecting strips 23 and the multiple protruding parts 10 can also be magnets, which are connected and fixed to each other by magnetic attraction. Sealing gaskets can also be provided on the surfaces where the multiple connecting strips 23 and the multiple protruding parts 10 meet, so as to improve the sealing performance.

[0039] Refer again Figure 5 To reduce the overall weight of the tooling, weight-reducing holes 25 can be provided on the contour jig 2. For example, the weight-reducing holes 25 are formed between the adsorption surface 21 and the vacuum adsorption cavity 3, along the width direction of the contour jig 2, and are located above the convex area 212. The weight-reducing holes 25 are not connected to the vacuum suction groove 20 or the vacuum adsorption cavity 3.

[0040] To facilitate the movement of the tooling in this embodiment, a handle 11 is provided on the cover plate 1. The handle 11 allows the user to hold the tooling and move it conveniently.

[0041] The vacuum generator used in this embodiment is a commonly available product on the market, and will not be described in detail here.

[0042] In use, the mica paper pasting fixture of this embodiment first connects the vacuum generator to the contour jig 2. The vacuum adsorption chamber 3 is evacuated through the vacuum generator and vacuum pipeline interface 22. The vacuum adsorption chamber 3 generates negative pressure on the adsorption surface 21 through the vacuum suction groove 20, placing the mica paper 5 on the adsorption surface 21 and firmly adsorbing and fixing it. The release paper on the mica paper 5 is peeled off, exposing the adhesive backing. The operator holds the handle 11 with both hands and moves the fixture with the adsorbed mica paper to the position on the battery pack housing 6 where the mica paper 5 needs to be pasted. Then, the fixture is aligned and pressed down to paste the mica paper 5 onto the battery pack housing 6. The vacuum generator is then turned off, and the fixture is removed, completing the mica paper 5 pasting process. Using the fixture of this embodiment to paste the mica paper 5 not only results in fast operation but also ensures that the pasted mica paper 5 is wrinkle-free, bubble-free, and gap-free with the battery pack housing 6, resulting in high overall battery pack quality.

[0043] It is worth mentioning that the mica paper pasting fixture of this utility model embodiment includes, but is not limited to, the adsorption and pasting of mica paper 5, and can also be used for the adsorption of other soft sheets such as paper and film, and its application is not limited to batteries.

[0044] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A mica paper pasting fixture, characterized in that, include: Cover plate (1); The contour jig (2) is sealed to the cover plate (1) and forms a vacuum adsorption cavity (3). The contour jig (2) is provided with a vacuum suction groove (20) and an adsorption surface (21). One end of the vacuum suction groove (20) is connected to the vacuum adsorption cavity (3), and the other end of the vacuum suction groove (20) extends to the adsorption surface (21).

2. The mica paper pasting fixture according to claim 1, characterized in that, The contour jig (2) is provided with a vacuum pipeline interface (22), which is connected to the vacuum adsorption chamber (3).

3. The mica paper pasting fixture according to claim 1, characterized in that, The vacuum adsorption chamber (3) includes a plurality of spaced sub-adsorption chambers (30), with a sealed arrangement between two adjacent sub-adsorption chambers (30), and a vacuum pipeline interface (22) is provided on the cavity wall of each sub-adsorption chamber (30).

4. The mica paper pasting fixture according to claim 3, characterized in that, The cover plate (1) is provided with a protruding member (10), and the contour jig (2) is provided with a connecting strip (23). The protruding member (10) is connected to the connecting strip (23) and divides the vacuum adsorption chamber (3) into a plurality of sub-adsorption chambers (30).

5. The mica paper pasting fixture according to claim 1, characterized in that, The end face of the conforming fixture (2) that connects with the cover plate (1) is provided with a groove (24), and a sealing element (4) is arranged in the groove (24).

6. The mica paper pasting fixture according to claim 1, characterized in that, The adsorption surface (21) is a wavy curved surface, and the end of the vacuum suction groove (20) is located in the concave area (211) of the wavy curved surface.

7. The mica paper pasting fixture according to claim 1, characterized in that, The number of vacuum suction grooves (20) is multiple, and the multiple vacuum suction grooves (20) are arranged at equal intervals.

8. The mica paper pasting fixture according to claim 1, characterized in that, The cross-sectional shape of the vacuum suction groove (20) is rectangular.

9. The mica paper pasting fixture according to claim 1, characterized in that, The conforming fixture (2) is provided with weight reduction holes (25).

10. The mica paper pasting fixture according to any one of claims 1-9, characterized in that, A handle (11) is provided on the cover plate (1).

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