Electrophoresis protection tool

Abstract

The electrophoresis protection tool is provided with an elastic clamping part, a clamping groove is formed in the peripheral wall of the elastic clamping part, the clamping groove is provided with a bottom wall, a first side wall and a second side wall, the first side wall and the second side wall are located on the two sides of the bottom wall respectively, and the clamping groove is used for being matched with the edge of an inserting hole in a clamped mode. When the clamping groove is matched with the edge of the inserting hole in a clamping mode, the bottom wall is attached to the hole wall of the inserting hole, and the first side wall and the second side wall are arranged on the two opposite sides of the inserting hole in a stopping mode respectively. The electrophoresis protection tool provided by the utility model is convenient to assemble and can firmly shield the insertion hole of the battery pack shell metal plate.

Description

Technical Field

[0001] This application relates to the field of vehicle painting equipment technology, and in particular to an electrophoresis protective fixture. Background Technology

[0002] Currently, with the development of electric vehicle production, battery pack shell electrophoresis has been introduced into automotive painting production lines. The battery pack shell is made entirely of sheet metal. The electrophoresis process forms a layer of electrophoretic protective paint on the surface of the battery pack shell sheet metal to ensure the overall corrosion resistance of the battery pack shell sheet metal. However, the electrophoretic paint produced on the surface of the battery pack shell sheet metal will generate insulation, which will affect the conductivity of the plug hole.

[0003] Typically, masking tape is used to cover the connector holes, which is then removed after electrophoresis to prevent further electrophoresis. However, masking tape is cumbersome to apply and tends to come loose during the electrophoresis process, resulting in poor protection of the connector holes. Utility Model Content

[0004] Therefore, it is necessary to provide an electrophoretic protective fixture that can be easily assembled and can firmly cover the insertion holes of the battery pack housing sheet metal to effectively protect the insertion holes.

[0005] An electrophoresis protective fixture is used to cover the insertion holes of the sheet metal casing of a battery pack. The electrophoresis protective fixture has an elastic snap-fit ​​part, and the outer peripheral wall of the elastic snap-fit ​​part has a snap-fit ​​groove. The snap-fit ​​groove has a bottom wall and a first side wall and a second side wall located on both sides of the bottom wall. The snap-fit ​​groove is used to snap-fit ​​with the edge of the insertion hole. When the snap-fit ​​groove snaps-fit with the edge of the insertion hole, the bottom wall fits against the hole wall of the insertion hole, and the first side wall and the second side wall stop on the opposite sides of the insertion hole.

[0006] In one embodiment, along the depth direction of the slot, the first sidewall extends for a length of L1, and the second sidewall extends for a length of L2, where L1 > L2.

[0007] In one embodiment, 4mm≤L1≤6mm, 2mm≤L2≤4mm.

[0008] In one embodiment, the outer peripheral wall of the elastic snap-fit ​​portion is further provided with a guide slope, which is connected to the second side wall and is used to guide the hole wall of the insertion hole into the slot.

[0009] In one embodiment, one end of the guide ramp is connected to the second sidewall, and the other end extends away from the second sidewall along the width of the slot and approaches the bottom wall of the slot along the depth direction of the slot.

[0010] In one embodiment, the electrophoresis protective fixture also includes a grip portion connected to the elastic snap-fit ​​portion, the grip portion being for a user to hold.

[0011] In one embodiment, the grip portion is connected to the sidewall of the elastic snap-fit ​​portion and extends in a long strip shape.

[0012] In one embodiment, the sidewall of the elastic snap-fit ​​portion is further provided with a receiving groove, and the grip portion is disposed in the receiving groove.

[0013] In one embodiment, the number of gripping portions is configured to be multiple, and the multiple gripping portions are spaced apart on the sidewall of the elastic snap-fit ​​portion.

[0014] In one embodiment, the electrophoresis protective garment is made of silicone, and the gripping part and the elastic snap-fit ​​part are an integral structure.

[0015] Compared with existing technologies, the electrophoresis protective fixture provided in this application features an elastic snap-fit ​​part that engages with the edge of the insertion hole via a snap-fit ​​groove. This facilitates the assembly of the electrophoresis protective fixture with the battery pack housing sheet metal. Furthermore, when the snap-fit ​​groove engages with the edge of the insertion hole, the elastic snap-fit ​​part can shield the edge of the insertion hole, thereby preventing the formation of electrophoretic protective paint on the edge of the insertion hole. Additionally, the first and second sidewalls can clamp the edge of the insertion hole, ensuring a more secure installation of the elastic snap-fit ​​part without loosening. This effectively protects the insertion hole from electrophoresis. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology 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.

[0017] Figure 1 This is a schematic diagram of the sheet metal structure of the battery pack housing in one embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the structure of the electrophoresis protective fixture in one embodiment of this application;

[0019] Figure 3 A partial cross-sectional view of the assembly of the electrophoresis protective fixture and the insertion hole in one embodiment provided in this application;

[0020] Figure 4 A partial cross-sectional view of the assembly of the electrophoresis protective fixture and the insertion hole in another embodiment provided in this application.

[0021] Reference numerals: 100, electrophoresis protective fixture; 10, elastic snap-fit ​​part; 11, slot; 111, bottom wall; 112, first side wall; 113, second side wall; 12, guide slope; 13, receiving groove; 20, gripping part; 200, battery pack shell sheet metal; 210, insertion hole. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figures 1 to 3 This application provides an electrophoresis protective fixture 100, which is used to cover the insertion hole 210 of the battery pack housing sheet metal 200. The electrophoresis protective fixture 100 has an elastic snap-fit ​​part 10, and the outer peripheral wall of the elastic snap-fit ​​part 10 is provided with a snap-fit ​​groove 11. The snap-fit ​​groove 11 has a bottom wall 111 and a first side wall 112 and a second side wall 113 located on both sides of the bottom wall 111. The snap-fit ​​groove 11 is used to snap-fit ​​with the edge of the insertion hole 210. When the snap-fit ​​groove 11 snaps-fit with the edge of the insertion hole 210, the bottom wall 111 fits against the hole wall of the insertion hole 210, and the first side wall 112 and the second side wall 113 stop on the opposite sides of the insertion hole 210.

[0028] Understandably, the elastic snap-fit ​​part 10 engages with the edge of the insertion hole 210 via the snap-fit ​​groove 11. This facilitates the assembly between the electrophoretic protective fixture 100 and the battery pack housing sheet metal 200. Furthermore, when the snap-fit ​​groove 11 engages with the edge of the insertion hole 210, the elastic snap-fit ​​part 10 can shield the edge of the insertion hole 210, thereby preventing the formation of electrophoretic protective paint on the edge of the insertion hole 210. Additionally, the first sidewall 112 and the second sidewall 113 can clamp the edge of the insertion hole 210, allowing the elastic snap-fit ​​part 10 to be more securely installed in the insertion hole 210 without loosening, thus effectively protecting the insertion hole 210 from electrophoresis.

[0029] Optionally, the resilient snap-fit ​​portion 10 is interference-fitted with the insertion hole 210 to further improve the firmness of the assembly between the resilient snap-fit ​​portion 10 and the insertion hole 210.

[0030] The slot 11 extends in a ring shape, and the extended shape of the slot 11 matches the extended shape of the edge of the insertion hole 210. The width of the slot 11 matches the thickness of the battery pack housing sheet metal 200. For example, in some embodiments, the thickness of the slot 11 can be 3 mm. Specifically, the slot 11 can extend in a ring shape or in an irregular shape.

[0031] like Figure 3As shown, along the depth direction of the slot 11, the extension length of the first sidewall 112 is L1, and the length of the second sidewall 113 is L2, where L1 > L2. That is, along the depth direction of the slot 11, the second sidewall 113 is shorter. Therefore, when assembling the electrophoresis protective fixture 100 with the battery pack housing sheet metal 200, the elastic snap-fit ​​part 10 can extend into the insertion hole 210 from the end where the second sidewall 113 is located, thereby facilitating the assembly of the electrophoresis protective fixture 100 with the battery pack housing sheet metal 200.

[0032] Furthermore, the setting 4mm≤L1≤6mm is understandable because if L1 is too small, the first sidewall 112 will be insufficient to stop the flow at the edge of the insertion hole 210; if L1 is too large, the area obstructed by the first sidewall 112 at the edge of the insertion hole 210 will be too large, thus affecting the electrophoretic coating effect on the battery pack housing sheet metal 200. Therefore, by setting 4mm≤L1≤6mm, the first sidewall 112 can be guaranteed to stop the flow at the edge of the insertion hole 210 while also preventing it from affecting the electrophoretic coating effect on the battery pack housing sheet metal 200. For example, the value of L1 can be 4mm, 5mm, 6mm, etc., and will not be listed individually, as long as it is within the above range.

[0033] The setting 2mm≤L2≤4mm is understandable. If L2 is too small, the second sidewall 113 will not effectively stop the flow at the edge of the insertion hole 210; if L2 is too large, the area obstructed by the second sidewall 113 at the edge of the insertion hole 210 will be too large, thus affecting the electrophoretic coating effect on the battery pack housing sheet metal 200. Therefore, by setting 2mm≤L2≤4mm, the second sidewall 113 can effectively stop the flow at the edge of the insertion hole 210 while avoiding its impact on the electrophoretic coating effect on the battery pack housing sheet metal 200. For example, the value of L2 can be 2mm, 3mm, 4mm, etc., and will not be listed individually, as long as it is within the above range.

[0034] Optionally, such as Figure 4 As shown, the outer peripheral wall of the elastic snap-fit ​​part 10 is also provided with a guide slope 12. The guide slope 12 is connected to the second side wall 113 and is used to guide the hole wall of the insertion hole 210 into the slot 11.

[0035] Exemplarily, in one embodiment, such as Figure 4 As shown, one end of the guide slope 12 is connected to the second sidewall 113, and the other end extends away from the second sidewall 113 along the width of the slot 11, and approaches the bottom wall of the slot 11 along the depth direction of the slot. This facilitates the gradual insertion of the elastic locking part 10 into the insertion hole 210 along the guide slope 12. The guide slope 12 can be configured as a plane or as an arc surface.

[0036] Please continue reading Figure 1 The electrophoresis protective fixture 100 also includes a gripping part 20 connected to the elastic snap-fit ​​part 10, which is used for the user to grip. This makes it convenient for the user to pick up the electrophoresis protective fixture 100, as well as to install and remove it.

[0037] The grip portion 20 is connected to the side wall of the elastic snap-fit ​​portion 10. Optionally, the grip portion 20 extends in a long strip shape to facilitate the user's grip; or, the grip portion 20 may extend in a block shape.

[0038] The side wall of the elastic snap-fit ​​part 10 is also provided with a receiving groove 13, and the grip part 20 is disposed in the receiving groove 13. In this way, the receiving groove 13 provides space for the user to hold the grip part 20.

[0039] Specifically, the two ends of the gripping part 20 are respectively connected to the opposite side walls of the receiving groove 13, and the bottom of the gripping part 20 is connected to the bottom wall of the receiving groove 13. Alternatively, the bottom of the gripping part 20 may be suspended.

[0040] The number of gripping parts 20 is configured to be multiple, and the multiple gripping parts 20 are distributed at intervals on the side wall of the elastic snap-fit ​​part 10. In this way, it is convenient for the user to pick up the electrophoresis protective fixture 100 from different angles.

[0041] The gripping part 20 and the elastic locking part 10 are integrally formed. Optionally, the electrophoresis protective fixture 100 is made of silicone, for example, high-temperature resistant silicone. Specifically, the gripping part 20 and the elastic locking part 10 are made of block-shaped high-temperature resistant silicone. This gives the electrophoresis protective fixture 100 a certain degree of toughness, allowing it to be used in the electrophoresis tank and meet the temperature requirements of the electrophoresis drying oven.

[0042] For example, in one embodiment, the electrophoresis protective fixture 100 is in the shape of a support block, and the dimensions of the electrophoresis protective fixture 100 are 48mm*55mm*8mm. The slot 11 is formed on the outer peripheral wall of the electrophoresis protective fixture 100, and the number of gripping parts 20 is configured to be two, which are symmetrically arranged on one side of the electrophoresis protective fixture 100.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. An electrophoresis protective fixture for shielding the insertion holes (210) of a battery pack housing sheet metal (200), characterized in that, The electrophoresis protective fixture (100) has an elastic snap-fit ​​part (10). The outer peripheral wall of the elastic snap-fit ​​part (10) is provided with a snap-fit ​​groove (11). The snap-fit ​​groove (11) has a bottom wall (111) and a first side wall (112) and a second side wall (113) located on both sides of the bottom wall (111). The snap-fit ​​groove (11) is used to snap-fit ​​with the edge of the insertion hole (210). When the snap-fit ​​groove (11) snaps-fit with the edge of the insertion hole (210), the bottom wall (111) fits against the hole wall of the insertion hole (210). The first side wall (112) and the second side wall (113) stop on the opposite sides of the insertion hole (210).

2. The electrophoresis protective fixture according to claim 1, characterized in that, Along the depth direction of the slot (11), the extension length of the first sidewall (112) is L1, and the length of the second sidewall (113) is L2, where L1 > L2.

3. The electrophoresis protective fixture according to claim 2, characterized in that, 4mm≤L1≤6mm, 2mm≤L2≤4mm.

4. The electrophoresis protective fixture according to claim 2, characterized in that, The outer peripheral wall of the elastic snap-fit ​​part (10) is also provided with a guide slope (12), which is connected to the second side wall (113) and is used to guide the hole wall of the insertion hole (210) into the slot (11).

5. The electrophoresis protective fixture according to claim 4, characterized in that, One end of the guide slope (12) is connected to the second side wall (113), and the other end extends away from the second side wall (113) along the width of the slot (11) and moves towards the bottom wall of the slot (11) along the depth direction of the slot.

6. The electrophoresis protective fixture according to claim 1, characterized in that, The electrophoresis protective fixture (100) also includes a gripping part (20) connected to the elastic snap-fit ​​part (10), the gripping part (20) being used for the user to hold.

7. The electrophoresis protective fixture according to claim 6, characterized in that, The gripping part (20) is connected to the side wall of the elastic snap-fit ​​part (10) and extends in a long strip shape.

8. The electrophoresis protective fixture according to claim 7, characterized in that, The side wall of the elastic snap-fit ​​part (10) is also provided with a receiving groove (13), and the gripping part (20) is provided in the receiving groove (13).

9. The electrophoresis protective fixture according to claim 7, characterized in that, The number of gripping parts (20) is configured to be multiple, and the multiple gripping parts (20) are distributed at intervals on the side wall of the elastic snap-fit ​​part (10).

10. The electrophoresis protective fixture according to claim 6, characterized in that, The electrophoresis protective fixture (100) is made of silicone, and the gripping part (20) and the elastic snap-fit ​​part (10) are an integral structure.

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