A coated gasket and coating apparatus

Abstract

The utility model relates to battery coating technical field, concretely relates to a kind of coating gasket and coating equipment.Coating gasket includes main part and two adjustable pieces, main part includes the side wall being set in thickness direction, side wall is equipped with guide slot, guide slot extends in the length direction of main part, and the depth of guide slot is less than the thickness of main part;Two adjustable pieces are spaced apart and set on main part, to form the through opening for slurry flow;The side of adjustable piece towards side wall is equipped with limit slot, the depth of limit slot is less than the thickness of adjustable piece, to form with slide buckle, slide buckle buckling and slidingly installed in guide slot, to adjust the width of through opening when two adjustable pieces move towards or in opposite direction.The coating gasket not only is convenient for battery model change after adjusting coating width, and its adjustable piece and the sliding connection structure strength of main part is higher, can effectively prevent deformation, maintain the stability of coating effect.

Description

Technical Field

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

[0002] There is a type of coated gasket that includes a main body (such as...) Figure 6 (U) and two adjustable parts (such as Figure 6 In the section I), two adjustable parts are located on both sides of the main body to define the slurry flow channel together with the main body. The adjustable parts are provided with clearance grooves (such as...). Figure 7 (K in the middle), to form a one-piece connecting arm (such as K ...). Figure 7 (P in the figure), the fixed end of the connecting arm is fixedly connected to the adjustable part, while the free end extends towards the main body; a slot is provided at the corresponding position on the main body (such as P). Figure 7 The L in the figure is a connecting arm that is slidably mounted in a slot, allowing both adjustable parts to slide relative to the main body to adjust the coating width.

[0003] However, in the above structure, due to the thinness of the coating gasket (generally only 1mm-1.5mm), the structural strength of the connecting arm and the slot is poor. In the long-term use, the free end of the connecting arm is repeatedly subjected to force, which can easily cause plastic deformation of the fixed end, resulting in a gap between the connecting arm and the slot, affecting the coating effect, and causing excessive thinning of the edge of the electrode after coating or bulging. Utility Model Content

[0004] This utility model provides a coating pad and a coating device to solve the problem that in existing coating pads, the sliding structure used to adjust the coating width is prone to deformation after long-term use, which causes the gap between the adjustable part and the main body to increase and affects the coating effect.

[0005] In a first aspect, this utility model discloses a coated gasket, comprising: The main body includes a sidewall disposed in the thickness direction, the sidewall being provided with a guide groove extending in the length direction of the main body, and the depth of the guide groove being less than the thickness of the main body; Two adjustable components are spaced apart on the main body to form an opening for slurry flow. Each adjustable component has a limiting groove on its side facing the sidewall. The depth of the limiting groove is less than the thickness of the adjustable component to form a sliding buckle. The sliding buckle is engaged and slidably mounted on the guide groove to adjust the width of the opening when the two adjustable components move in opposite or opposite directions.

[0006] In one embodiment, the guide groove includes a first receiving portion and a second receiving portion. In terms of the orientation of the guide groove, the first receiving portion is located on the side of the second receiving portion away from the opening of the guide groove, so as to form a step next to the first receiving portion. The limiting groove includes a third receiving portion and a fourth receiving portion. In terms of the orientation of the limiting groove, the third receiving portion is located on the side of the fourth receiving portion away from the opening of the limiting groove, so as to form a locking block next to the third receiving portion. The locking block can be engaged with the step.

[0007] In one embodiment, the depth of the first accommodating portion and the third accommodating portion is greater than or equal to 0.5 mm and less than or equal to 0.8 mm, and / or the depth of the second accommodating portion and the fourth accommodating portion is greater than or equal to 0.2 mm and less than or equal to 0.4 mm.

[0008] In one embodiment, the adjustable member includes a bottom wall, the limiting groove is disposed through the bottom wall, and the guide groove includes a first side groove wall disposed opposite to the bottom wall, the first side groove wall abutting against the bottom wall; and / or, the main body includes a top wall adjacent to the side wall, the guide groove is disposed through the top wall, and the limiting groove includes a second side groove wall disposed opposite to the top wall, the top wall abutting against the second side groove wall.

[0009] In one embodiment, the main body is made of stainless steel; and / or, the adjustable part is made of stainless steel.

[0010] In one embodiment, the main body includes a base and two extensions, the two extensions being symmetrically disposed on both sides of the base, and the two guide grooves being disposed on the side of the extensions away from the base.

[0011] In one embodiment, the adjustable member includes the limiting section, which is connected to the slide buckle and located on the side of the slide buckle facing the opening. The two sides of the limiting section are coplanar with the two side walls of the body, respectively.

[0012] In one embodiment, the limiting segment has an inclined surface on the side facing the opening.

[0013] In one embodiment, the adjustable component includes a scale segment connected to the side of the limiting segment away from the opening, and the scale segment is provided with a plurality of markings, which are arranged at intervals along the length of the guide groove.

[0014] Secondly, this utility model also discloses a coating device, including a coating head, wherein the coating head includes the coating pad described in the above embodiments.

[0015] The beneficial effects of the coating pad provided in this embodiment of the present invention are as follows: the coating pad not only facilitates the adjustment of the coating width after battery replacement, but also improves the strength of the sliding structure with the main body, thus maintaining the stability of the coating effect.

[0016] Specifically, the adjustable component has a limiting groove that does not penetrate the adjustable component to form a sliding buckle, thus increasing the contact area between the sliding buckle and the adjustable component. When the sliding buckle is slidably installed in the guide groove, it reduces localized stress concentration, thereby preventing deformation of the sliding buckle during long-term use. Furthermore, the guide groove also does not penetrate the main body, resulting in higher structural strength and providing stable support for the sliding buckle. Therefore, the sliding structure of the adjustable component and the main body of this application has better strength, effectively preventing gaps caused by deformation, resulting in more stable coating effects and effectively reducing the occurrence of excessive edge thinning or edge bulging after electrode coating. Attached Figure Description

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is one of the three-dimensional schematic diagrams of the coated pad provided in this embodiment of the utility model; Figure 2 This is a second perspective view of the coated pad provided in this embodiment of the utility model; Figure 3 This is a disassembly diagram of the coated gasket provided in this embodiment of the utility model; Figure 4 This is a front view of the adjustable component provided in this embodiment of the utility model; Figure 5 yes Figure 4 Enlarged cross-sectional view along line AA; Figure 6 This is one of the three-dimensional schematic diagrams of coated gaskets in the prior art; Figure 7 This is the second three-dimensional schematic diagram of coated gaskets in the prior art.

[0018] The labels for the attached figures are as follows: 1000, Coated gasket; 10. Main body; 11. Side wall; 111. Guide groove; 1111. First receiving part; 1112. Second receiving part; 1113. Step; 1114. First side groove wall; 12. Top wall; 13. Base; 14. Extension; 20. Adjustable part; 21. Limiting groove; 211. Third receiving part; 212. Fourth receiving part; 213. Second side groove wall; 22. Sliding buckle; 221. Locking block; 23. Bottom wall; 24. Limiting section; 241. Inclined surface; 25. Scale section; 251. Marker; 30. Opening. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] This utility model embodiment provides a coated gasket 1000, such as Figure 1 - Figure 3 As shown, the coating pad 1000 includes a main body 10 and two adjustable members 20. The main body 10 includes a sidewall 11 disposed in the thickness direction, and the sidewall 11 is provided with a guide groove 111. The guide groove 111 extends in the length direction of the main body 10, and the depth of the guide groove 111 is less than the thickness of the main body 10. The two adjustable members 20 are spaced apart on the main body 10 to form an opening 30 for slurry flow. The adjustable member 20 has a limiting groove 21 on the side facing the sidewall 11. The depth of the limiting groove 21 is less than the thickness of the adjustable member 20 to form a sliding buckle 22. The sliding buckle 22 is engaged and slidably mounted at the guide groove 111 to adjust the width of the opening 30 when the two adjustable members 20 move in opposite or opposite directions. This application solves the problem of the sliding structure (such as...) used for adjusting the coating width in the existing coating pad 1000. Figure 6 and Figure 7 (As shown) After long-term use, it is prone to deformation, which can cause the gap between the adjustable part 20 and the main body 10 to increase and affect the coating effect. The coating pad 1000 not only facilitates the adjustment of the coating width after battery replacement, but also has a higher strength in the sliding connection structure between the adjustable part 20 and the main body 10, which can effectively prevent deformation and maintain the stability of the coating effect.

[0021] Specifically, the adjustable component 20 is provided with a limiting groove 21, which does not penetrate the adjustable component 20 to form a sliding buckle 22, thus increasing the contact area between the sliding buckle 22 and the adjustable component 20. When the sliding buckle 22 is slidably installed in the guide groove 111, the force it experiences is small, effectively reducing localized stress concentration and preventing deformation of the sliding buckle 22 during long-term use. Furthermore, the guide groove 111 also does not penetrate the main body 10, resulting in higher structural strength and providing stable support for the sliding buckle 22. Therefore, the sliding structure between the adjustable component 20 and the main body 10 of this application has higher strength, effectively preventing gaps due to deformation, resulting in a more stable coating effect and effectively reducing the occurrence of excessive edge thinning or edge bulging after electrode coating.

[0022] Reference Figure 3 - Figure 5In one embodiment, the guide groove 111 includes a first receiving portion 1111 and a second receiving portion 1112. In the orientation of the guide groove 111, the first receiving portion 1111 is located on the side of the second receiving portion 1112 away from the opening of the guide groove 111, forming a step 1113 next to the first receiving portion 1111. The limiting groove 21 includes a third receiving portion 211 and a fourth receiving portion 212. In the orientation of the limiting groove 21, the third receiving portion 211 is located on the side of the fourth receiving portion 212 away from the opening of the limiting groove 21, forming a locking block 221 next to the third receiving portion 1111 that matches the step 1113. The locking block 221 can engage with the step 1113. This arrangement, on the one hand, increases the contact area between the two when the sliding buckle 22 slides relative to the guide groove 111, thereby improving the stability of the connection. On the other hand, the step 1113 can limit the position of the locking block 221, preventing the sliding buckle 22 from moving in the non-sliding direction, thereby ensuring that the adjustable part 20 can maintain its relative position with the main body 10 when the slurry flows out of the outlet 30, preventing the adjustable part 20 from tilting, and further improving the stability of the coating effect.

[0023] Because the gasket is relatively thin, if the depths of the first receiving portion 1111 and the second receiving portion 1112 are too large, the wall thickness at the corresponding position after the guide groove 111 is opened in the main body 10 will be too thin, affecting the structural strength; conversely, if the depth is too shallow, the contact area between the guide groove 111 and the sliding buckle 22 will be insufficient, affecting the connection stability. To solve this problem, in one embodiment, the depth of the first receiving portion 1111 and the depth of the third receiving portion 211 (e.g., Figure 5 The depths of the second accommodating portion 1112 and the fourth accommodating portion 212 (as shown in the figure) are both greater than or equal to 0.5 mm and less than or equal to 0.8 mm. Figure 5 The depth difference between the guide groove 111 and the limiting groove 21 is greater than or equal to 0.2 mm and less than or equal to 0.4 mm. This design controls the depth difference between the guide groove 111 and the limiting groove 21 within a reasonable range. This avoids the structural strength being affected by excessively deep grooves leading to thin walls of the main body 10 or the adjustable part 20, while ensuring sufficient contact area between the sliding buckle 22 and the guide groove 111, resulting in a reliable connection and a more rational design. Specifically, the thickness of both the adjustable part 20 and the main body 10 is 1 mm.

[0024] To further improve the stability of the connection between the adjustable body and the main body 10. (Refer to...) Figure 3In one embodiment, the main body 10 includes a top wall 12 adjacent to the side wall 11, a guide groove 111 extending through the top wall 12, and a limiting groove 21 including a second side groove wall 213 opposite to the top wall 12, with the top wall 12 abutting against the second side groove wall 213. In another embodiment, the adjustable member 20 includes a bottom wall 23, a limiting groove 21 extending through the bottom wall 23, and a guide groove 111 including a first side groove wall 1114 opposite to the bottom wall 23, with the first side groove wall 1114 abutting against the bottom wall 23. With this configuration, when the sliding buckle 22 is installed in the guide groove 111, the abutting engagement between the top wall 12 and the second side groove wall 213, and the abutting engagement between the first side groove wall 1114 and the bottom wall 23, work together to effectively constrain the displacement of the adjustable member 20 in the non-sliding direction, preventing it from deviating. Meanwhile, the top wall 12 also serves as a limiting guide for the limiting groove 21, ensuring that the adjustable part 20 always moves along the predetermined sliding direction, thereby ensuring the accuracy of its position adjustment.

[0025] Reference Figure 1 In one embodiment, the main body 10 includes a base 13 and two extensions 14, which are symmetrically arranged on both sides of the base 13. Two guide grooves 111 are respectively arranged on the side of the extensions 14 away from the base 13. With this arrangement, the base 13 and the two extensions can guide the slurry to flow evenly to the opening 30, thereby ensuring the uniformity and quality of the coating.

[0026] Reference Figure 1 - Figure 3 In one embodiment, the adjustable component 20 includes a limiting section 24 connected to the sliding buckle 22 and located on the side of the sliding buckle 22 facing the opening 30. The two sides of the limiting section 24 are coplanar with the two side walls 11 of the main body 10. With this configuration, the overall thickness of the coating pad 1000 directly determines the thickness of the coating layer. When the adjustable component 20 is installed in the guide groove 111 via the sliding buckle 22, the limiting section 24 and the main body 10 are on the same plane, allowing adjustment of the size of the opening 30 while avoiding any impact on the overall thickness of the coating pad 1000. Furthermore, the coplanar design eliminates the height difference between the adjustable component 20 and the main body 10, preventing gaps caused by height differences and preventing slurry leakage into these gaps, thus improving the reliability of the coating system.

[0027] Preferably, the adjustable part 20 is equal to the thickness of the main body 10. For example, the thickness of both the adjustable part 20 and the main body 10 is 1 mm.

[0028] In one embodiment, the main body 10 is made of stainless steel; and / or, the adjustable part 20 is made of stainless steel. This arrangement leverages the high strength, good wear resistance, and resistance to temperature fluctuations of stainless steel, which helps ensure effective coating.

[0029] Reference Figure 1In one embodiment, the limiting section 24 has an inclined surface 241 on the side facing the opening 30. This configuration allows the limiting section 24 to limit the size of the opening 30, and the inclined surface 241 on the side of the limiting section 24 facing the opening 30 enables more precise control of the amount of slurry flowing out of the opening 30 along the inclined surface 241, avoiding uneven coating thickness. Furthermore, it reduces turbulence at the edge of the opening 30, lowering the risk of coating defects such as excessive edge thinning or edge bulging after electrode coating.

[0030] Reference Figure 1 and Figure 2 In one embodiment, the adjustable component 20 includes a scale segment 25 connected to the side of the limiting segment away from the opening 30. The scale segment 25 has several markings 251 spaced apart along the length of the guide groove 111. This arrangement allows the operator to move the adjustable component 20 according to the coating requirements of different types of battery electrodes, moving the corresponding markings 251 on the scale segment 25 to the corresponding positions on the main body 10. This allows for more precise adjustment of the opening 30 size, ensuring it matches the current coating process requirements and effectively guaranteeing coating accuracy.

[0031] Secondly, this utility model also discloses a coating device (not shown in the figure), which includes a coating head (not shown in the figure) and a coating pad 1000 as described in the above embodiments. Thus, this coating device can ensure the coating effect of the electrode sheets while also allowing for quick and precise adjustment of the slurry flow opening 30 size using the coating pad 1000 when changing the type of battery electrode sheets, shortening the equipment waiting or debugging time caused by the changeover and effectively improving overall production efficiency.

[0032] In one embodiment, the coating head further includes an upper mold base (not shown) and a lower mold base (not shown), with a coating pad 1000 sandwiched between the upper mold base and the lower mold base. One of the upper mold base and the lower mold base is provided with a channel communicating with the flow space. By injecting slurry into the channel, the slurry flows into the flow space and is discharged through the outlet 30 to coat the substrate of the electrode sheet.

[0033] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A coated gasket, characterized in that, include: The main body includes a sidewall disposed in the thickness direction, the sidewall being provided with a guide groove extending in the length direction of the main body, and the depth of the guide groove being less than the thickness of the main body; Two adjustable components are spaced apart on the main body to form an opening for slurry flow. Each adjustable component has a limiting groove on its side facing the sidewall. The depth of the limiting groove is less than the thickness of the adjustable component to form a sliding buckle. The sliding buckle is engaged and slidably mounted on the guide groove, allowing the two adjustable components to move in opposite directions to adjust the width of the opening.

2. The coated gasket according to claim 1, characterized in that, The guide groove includes a first receiving portion and a second receiving portion. In terms of the orientation of the guide groove, the first receiving portion is located on the side of the second receiving portion away from the opening of the guide groove, so as to form a step next to the first receiving portion. The limiting groove includes a third receiving portion and a fourth receiving portion. In terms of the orientation of the limiting groove, the third receiving portion is located on the side of the fourth receiving portion away from the opening of the limiting groove, so as to form a locking block next to the third receiving portion. The locking block can be engaged with the step.

3. The coated gasket according to claim 2, characterized in that, The depth of the first accommodating portion and the third accommodating portion is greater than or equal to 0.5 mm and less than or equal to 0.8 mm, and / or the depth of the second accommodating portion and the fourth accommodating portion is greater than or equal to 0.2 mm and less than or equal to 0.4 mm.

4. The coated gasket according to claim 2, characterized in that, The adjustable component includes a bottom wall, the limiting groove is disposed through the bottom wall, the guide groove includes a first side groove wall disposed opposite to the bottom wall, the first side groove wall abutting against the bottom wall; and / or, the main body includes a top wall adjacent to the side wall, the guide groove is disposed through the top wall, the limiting groove includes a second side groove wall disposed opposite to the top wall, the top wall abutting against the second side groove wall.

5. The coated gasket according to claim 2, characterized in that, The main body is made of stainless steel; and / or, the adjustable part is made of stainless steel.

6. The coated gasket according to any one of claims 1-5, characterized in that, The main body includes a base and two extensions. The two extensions are symmetrically arranged on both sides of the base, and the two guide grooves are respectively arranged on the side of the extensions away from the base.

7. The coated gasket according to claim 6, characterized in that, The adjustable component includes a limiting section connected to the sliding buckle and located on the side of the sliding buckle facing the opening. The two sides of the limiting section are coplanar with the two side walls of the main body, respectively.

8. The coated gasket according to claim 7, characterized in that, The limiting section has an inclined surface on the side facing the opening.

9. The coated gasket according to claim 7, characterized in that, The adjustable component includes a scale section connected to the side of the limiting section away from the opening, and the scale section is provided with several markings, which are arranged at intervals along the length of the guide groove.

10. A coating apparatus, characterized in that, Includes a coating head, wherein the coating head comprises the coating pad as described in any one of claims 1-9.

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