Sheet metal electrophoresis shielding tool
By designing sheet metal electrophoretic shielding tooling, the mechanical structure of the positioning core and the shielding assembly are used to solve the problem of unreliable shielding in sheet metal electrophoretic treatment, the sealing and reliability of shielding are achieved, the cost is reduced, and the grounding function is ensured.
Patent Information
- Application Number
- CN202422325496.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-23
AI Technical Summary
In the prior art, during sheet metal electrophoresis treatment, the connector shielding is not firm, resulting in leakage of electrophoretic liquid, affecting the grounding function, and cannot pass the equipotential detection of the battery pack downline, and the shielding material cannot be reused, which is costly.
A sheet metal electrophoretic shielding tool is designed, including a positioning core and a removable shielding assembly, which abuts the sheet metal using the fixed base and the sealing surface of the fixed upper cover to achieve reliable shielding of the butt socket, and ensures sealing and reuse through mechanical structure coordination.
The reuse of sheet metal electrophoretic shielding tooling is realized, reducing costs, ensuring the sealing and reliability of the shielding, preventing electrophoretic liquid from infiltration, ensuring the grounding function of the connector is turned on, and the equipotential detection is carried out through the battery pack downline.
Smart Images
Figure CN223163515U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of sheet metal electrophoresis, and particularly to a sheet metal electrophoresis masking tooling. Background Art
[0002] The lower box body of the power battery pack usually adopts an integrated package solution of stamping sheet metal to weld the lower shell and the sheet metal upper cover. Among them, the outer surface of the stamped and welded box body needs to be electrophoretically protected to play the roles of surface rust prevention and insulation; due to the design of the shielding ring grounding spring piece on the connector of the high-voltage and low-voltage wire harnesses contacting the position of the socket on the stamped and welded box body, and realizing the grounding function of the overall connector of the battery pack. However, the electrophoresis treatment will affect the socket on the stamped and welded box body at the same time, which easily leads to the inability to ensure the conduction of the grounding function of the high-voltage and low-voltage wire harness connectors in the battery pack, resulting in the failure of the equal-potential detection when the battery pack comes off the production line. Therefore, before the electrophoresis treatment of the stamped and welded box body, it is necessary to mask the socket on the stamped and welded box body to prevent the surface of the socket from being covered by the electrophoretic protective insulating material.
[0003] Currently, the existing conventional masking solutions mainly use die-cut high-temperature resistant tapes to wrap and seal the sockets on the sheet metal in a pasting manner. However, during the actual electrophoresis treatment of the sheet metal, there is a situation of electrophoretic liquid leakage at the contact between the high-temperature resistant tape and the sheet metal. Moreover, the high-temperature resistant tape is not firmly pasted, resulting in the need for manual trimming operations after the electrophoresis of the sheet metal. This not only makes it difficult to mask the sockets on the sheet metal, unable to be reused, and costly; but also there is poor masking of the sockets on the sheet metal, resulting in the surface of the sockets on the sheet metal having a protective insulating material and causing the grounding function of the overall connector of the battery pack to fail to conduct, thus leading to the failure of the equal-potential detection when the battery pack comes off the production line. Utility Model Content
[0004] Based on this, it is necessary to provide a sheet metal electrophoresis masking tooling for solving the above technical problems.
[0005] A sheet metal electrophoresis masking tooling is used to mask the sockets on the sheet metal; the sheet metal electrophoresis masking tooling includes:
[0006] A positioning core capable of being inserted and matched with the socket;
[0007] A masking component detachably connected to the positioning core. The masking component includes a fixed base and a fixed upper cover. In the thickness direction of the positioning core, the fixed base and the fixed upper cover are arranged on both sides of the positioning core and respectively abut against the sheet metal for fixing the masking component to the sheet metal.
[0008] Wherein, the fixed base has an annular first sealing surface for abutting and sealing with the sheet metal, and the fixed upper cover has an annular second sealing surface for abutting and sealing with the sheet metal.
[0009] It can be understood that through the above structural arrangement, the sheet metal electrophoresis shielding tooling can shield the socket on the sheet metal through the assembly connection of the shielding component on the positioning core. In this process, the mutual cooperation between mechanical structures is used to shield the socket on the sheet metal. This not only enables the repeated use of the sheet metal electrophoresis shielding tooling, reducing costs, but also ensures the sealing performance and reliability when shielding the socket on the sheet metal, preventing the infiltration of electrophoresis liquid during subsequent electrophoresis treatment of the sheet metal. This can ensure the conduction of the grounding function of the connector when contacting the socket on the sheet metal, thereby ensuring the passing of the equal-potential detection of the battery pack with the sheet metal.
[0010] In one embodiment, the sheet metal electrophoresis shielding tooling further includes a first connecting member, which can be screwed to the fixed base after sequentially passing through the fixed upper cover and the positioning core.
[0011] It can be understood that through the above structural arrangement, it is convenient for the disassembly and assembly between the fixed upper cover and the fixed base, thus facilitating the shielding operation of the socket on the sheet metal by the sheet metal electrophoresis shielding tooling.
[0012] In one embodiment, the number of the first connecting members is configured to be multiple.
[0013] It can be understood that through the above structural arrangement, the connection stability when the fixed upper cover is connected to the fixed base through the first connecting member can be improved, further enhancing the sealing performance and reliability when the sheet metal electrophoresis shielding tooling shields the socket on the sheet metal.
[0014] In one embodiment, an extension boss is formed on the fixed base, and the extension boss is arranged on the side of the fixed base away from the fixed upper cover;
[0015] Wherein, a part of the first connecting member extends into the extension boss and is screwed to the extension boss.
[0016] It can be understood that through the above structural arrangement, the threaded length of the screw connection between the first connecting member and the fixed base can be extended, further improving the stability when the fixed upper cover is fixed to the fixed base through the first connecting member.
[0017] In one embodiment, the fixed upper cover can be inserted and matched with the positioning core.
[0018] It can be understood that through the above structural settings, the assembly of the fixed upper cover on the positioning core can be guided. This not only facilitates the assembly of the fixed upper cover onto the positioning core, but also ensures the accuracy of the assembly position between the fixed upper cover and the positioning core, so as to facilitate the subsequent passing of the first connecting piece through the fixed upper cover and the positioning core.
[0019] In one embodiment, the fixed base and the positioning core are detachably connected by a second connecting piece.
[0020] It can be understood that through the above structural settings, the fixed base can clean the electrophoretic paint on the first sealing surface of the fixed base after being separated from the positioning core. This facilitates the cleaning of the electrophoretic paint on the first sealing surface of the fixed base and ensures the sealing performance between the first sealing surface of the fixed base and the sheet metal when they are in contact.
[0021] In one embodiment, the second connecting piece can pass through the positioning core and then be screwed to the fixed base.
[0022] It can be understood that through the above structural settings, the disassembly and assembly between the positioning core and the fixed base are facilitated, thus facilitating the shielding operation of the sheet metal electrophoretic shielding tool on the socket on the sheet metal.
[0023] In one embodiment, the second connecting piece has a limiting head, and the limiting head can press against the positioning core to limit the positioning core to the fixed base;
[0024] Wherein, a groove is formed on the positioning core, and the groove is used for receiving the limiting head.
[0025] It can be understood that through the above structural settings, the positioning core can receive the limiting head on the second connecting piece, which can avoid interference of the limiting head with the assembly between the positioning core and the fixed upper cover.
[0026] In one embodiment, the fixed base can be in plug-in fit with the positioning core.
[0027] It can be understood that through the above structural settings, the assembly of the fixed base on the positioning core can be guided. This not only facilitates the assembly of the fixed base onto the positioning core, but also ensures the accuracy of the assembly position between the fixed base and the positioning core, so as to facilitate the subsequent passing of the second connecting piece through the positioning core and then being screwed to the fixed base.
[0028] In one embodiment, the fixed base and the positioning core are connected as one body.
[0029] Due to the application of the above technical solutions, the present utility model has the following advantages compared with the prior art:
[0030] The sheet metal electrophoresis shielding tooling claimed in this application can shield the socket on the sheet metal by the assembly connection of the shielding component on the positioning core. In this process, the mutual cooperation between mechanical structures is used to shield the socket on the sheet metal. This not only enables the repeated use of the sheet metal electrophoresis shielding tooling, reducing costs, but also ensures the sealing and reliability when shielding the socket on the sheet metal, preventing the infiltration of electrophoresis liquid during subsequent electrophoresis treatment of the sheet metal. This can ensure the conduction of the grounding function of the connector when contacting the socket on the sheet metal, thus ensuring the passing of the equal-potential detection of the battery pack with this sheet metal offline. Brief Description of the Drawings
[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0032] Figure 1 Exploded view of the sheet metal electrophoresis shielding tooling and the sheet metal provided by the present application;
[0033] Figure 2 Structural schematic diagram of the sheet metal electrophoresis shielding tooling provided by the present application;
[0034] Figure 3 Structural schematic diagram when the sheet metal electrophoresis shielding tooling provided by the present application is assembled with the sheet metal;
[0035] Figure 4 Structural schematic diagram from another perspective when the sheet metal electrophoresis shielding tooling provided by the present application is assembled with the sheet metal;
[0036] Figure 5 Structural schematic diagram from another perspective when the sheet metal electrophoresis shielding tooling provided by the present application is assembled with the sheet metal;
[0037] Figure 6 For Figure 5 Cross-sectional view taken along line A-A in
[0038] Figure 7 Structural schematic diagram when the sheet metal electrophoresis shielding tooling provided by the present application is assembled with the sheet metal, where the fixed upper cover is in a hidden state.
[0039] Reference numerals: 100, sheet metal electrophoresis masking tooling; 200, sheet metal; 201, socket; 10, positioning core; 101, groove; 20, masking assembly; 21, fixed base; 211, first sealing surface; 212, extending boss; 22, fixed upper cover; 221, second sealing surface; 30, first connecting member; 40, second connecting member; 41, limiting head. Detailed implementation manners
[0040] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe in detail the specific implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.
[0041] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can also 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 at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present application are only for the purpose of illustration and do not represent the only implementation manner.
[0042] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0043] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first feature is in direct contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature has a lower horizontal height than the second feature.
[0044] Unless otherwise defined, all technical and scientific terms used in the specification of this application shall have the same meaning as commonly understood by those skilled in the technical field to which this application pertains. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the related listed items.
[0045] The sheet metal electrophoresis masking tooling 100 claimed in this application is used to mask the socket 201 on the sheet metal 200 to prevent the infiltration of electrophoresis liquid during subsequent electrophoresis treatment of the sheet metal 200. Here, the sheet metal 200 is the sheet metal in the lower box body of the power battery pack.
[0046] As Figures 1 to 7 As shown, the sheet metal electrophoresis masking tooling 100 provided by an embodiment of this application includes a positioning core 10 and a masking component 20. The positioning core 10 can be inserted and matched with the socket 201. The masking component 20 is detachably connected to the positioning core 10. The masking component 20 includes a fixed base 21 and a fixed upper cover 22. In the thickness direction of the positioning core 10, the fixed base 21 and the fixed upper cover 22 are arranged on both sides of the positioning core 10 and are respectively abutted against the sheet metal 200 for fixing the masking component 20 to the sheet metal 200. Among them, the fixed base 21 has an annular first sealing surface 211 for abutting and sealing with the sheet metal 200, and the fixed upper cover 22 has an annular second sealing surface 221 for abutting and sealing with the sheet metal 200. That is to say, the sheet metal electrophoresis masking tooling 100 can use the first sealing surface 211 on the fixed base 21 and the second sealing surface 221 on the fixed upper cover 22 to respectively abut and seal with the sheet metal 200 to achieve the masking of the socket 201 on the sheet metal 200, so as to ensure the sealing performance and reliability when the masking component 20 masks the socket 201 on the sheet metal 200.
[0047] It can be understood that the sheet metal electrophoresis masking tooling 100 of this application can achieve the masking of the socket 201 on the sheet metal 200 through the assembly connection of the masking component 20 on the positioning core 10. In this process, the masking of the socket 201 on the sheet metal 200 is achieved by the mutual cooperation between mechanical structures. This not only enables the repeated use of the sheet metal electrophoresis masking tooling 100, which has the effect of reducing costs, but also ensures the sealing performance and reliability when masking the socket 201 on the sheet metal 200 to prevent the infiltration of electrophoresis liquid during subsequent electrophoresis treatment of the sheet metal 200, so as to ensure the conduction of the grounding function of the connector (not shown in the figure) when contacting the socket 201 on the sheet metal 200, thereby ensuring the passing of the equal-potential detection (not shown in the figure) of the battery pack applying the sheet metal 200.
[0048] AsFigure 1 , Figure 3 , Figure 6 As shown in Figure 1 , Figure 3 , and Figure 6 , in one embodiment, the sheet metal electrophoresis masking tooling 100 further includes a first connecting member 30. The first connecting member 30 can be sequentially passed through the fixed upper cover 22 and the positioning core 10 and then screwed to the fixed base 21. With such a setting, it is convenient for the disassembly and assembly between the fixed upper cover 22 and the fixed base 21, thereby facilitating the masking operation of the sheet metal electrophoresis masking tooling 100 on the socket 201 of the sheet metal 200. In other embodiments, the first connecting member 30 can also be sequentially passed through the fixed base 21 and the positioning core 10 and then screwed to the fixed upper cover 22. Here, the first connecting member 30 can be set as a bolt, a screw, etc.
[0049] As Figure 1 , Figure 3 shown in Figure 1 and Figure 3 , in one embodiment, the number of the first connecting members 30 is configured to be multiple. Thus, the connection stability when the fixed upper cover 22 is connected to the fixed base 21 through the first connecting member 30 can be improved, and further the sealing performance and reliability when the sheet metal electrophoresis masking tooling 100 masks the socket 201 on the sheet metal 200 can be improved. Here, the number of the first connecting members 30 is two. It can be understood that in other embodiments, the number of the first connecting members 30 can also be three, four or even more.
[0050] As Figure 6 shown in Figure 6 , in one embodiment, the fixed base 21 can be inserted and matched with the positioning core 10. With such a setting, the assembly of the fixed base 21 on the positioning core 10 can be guided. In this way, it is not only convenient to assemble the fixed base 21 to the positioning core 10, but also ensures the accuracy of the assembly position between the fixed base 21 and the positioning core 10, so as to facilitate the subsequent screwing of the second connecting member 40 through the positioning core 10 and to the fixed base 21.
[0051] In one embodiment, the fixed base 21 and the positioning core 10 are connected as a whole.
[0052] As Figure 1 , Figure 6 shown in Figure 1 and Figure 6 , in one embodiment, an extension boss 212 is formed on the fixed base 21. The extension boss 212 is arranged on the side of the fixed base 21 away from the fixed upper cover 22; wherein, a part of the first connecting member 30 extends into the extension boss 212 and is screwed to the extension boss 212. With such a setting, the threaded length of the screwing between the first connecting member 30 and the fixed base 21 can be extended, and further the stability when the fixed upper cover 22 is fixed to the fixed base 21 through the first connecting member 30 can be improved.
[0053] As Figure 6As shown, in one embodiment, the fixed upper cover 22 can be inserted and cooperated with the positioning core 10. With such a setting, the assembly of the fixed upper cover 22 on the positioning core 10 can be guided. This not only facilitates the assembly of the fixed upper cover 22 onto the positioning core 10, but also ensures the accuracy of the assembly position between the fixed upper cover 22 and the positioning core 10, so as to facilitate the subsequent passing of the first connecting member 30 through the fixed upper cover 22 and the positioning core 10.
[0054] As Figure 1 , Figure 7 shown, in one embodiment, the fixed base 21 and the positioning core 10 are detachably connected through the second connecting member 40. With such a setting, the fixed base 21 can be detached from the positioning core 10 to clean the electrophoretic paint (not shown in the figure) on the first sealing surface 211 of the fixed base 21. This facilitates the cleaning of the electrophoretic paint on the first sealing surface 211 of the fixed base 21 and ensures the sealing performance between the first sealing surface 211 of the fixed base 21 and the sheet metal 200 when they are in contact.
[0055] Preferably, as Figure 6 , Figure 7 shown, the second connecting member 40 can pass through the positioning core 10 and then be screwed to the fixed base 21. In this way, the disassembly and assembly between the positioning core 10 and the fixed base 21 can be facilitated, thus facilitating the shielding operation of the sheet metal electrophoretic shielding tool 100 on the socket 201 of the sheet metal 200. In other embodiments, the second connecting member 40 can also pass through the positioning core 10 and then be screwed to the fixed upper cover 22. Here, the second connecting member 40 can be set as a bolt, a screw, etc.
[0056] As Figure 1 , Figure 6 shown, in one embodiment, the second connecting member 40 has a limiting head 41, and the limiting head 41 can press against the positioning core 10 to limit the positioning core 10 to the fixed base 21; wherein, a groove 101 is formed on the positioning core 10, and the groove 101 is used to accommodate the limiting head 41. With such a setting, the positioning core 10 can accommodate the limiting head 41 on the second connecting member 40, which can avoid the interference of the limiting head 41 on the assembly between the positioning core 10 and the fixed upper cover 22.
[0057] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity in description, 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, it should be considered as the scope recorded in this specification.
[0058] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the patent protection scope of the present application shall be subject to the appended claims.
Claims
1. A sheet metal electrophoresis masking tooling for masking the socket (201) on the sheet metal (200); characterized in that, The sheet metal electrophoresis masking tooling (100) includes: A positioning core (10) capable of being inserted and mated with the socket (201); A masking assembly (20) detachably connected to the positioning core (10). The masking assembly (20) includes a fixed base (21) and a fixed upper cover (22). In the thickness direction of the positioning core (10), the fixed base (21) and the fixed upper cover (22) are arranged on both sides of the positioning core (10) and respectively abut against the sheet metal (200) for fixing the masking assembly (20) to the sheet metal (200); Wherein, the fixed base (21) has an annular first sealing surface (211) for abutting and sealing with the sheet metal (200), and the fixed upper cover (22) has an annular second sealing surface (221) for abutting and sealing with the sheet metal (200).
2. The sheet metal electrophoresis masking tooling according to claim 1, characterized in that, The sheet metal electrophoresis masking tooling (100) further includes a first connecting member (30) which can be screwed to the fixed base (21) after sequentially passing through the fixed upper cover (22) and the positioning core (10).
3. The sheet metal electrophoresis masking tooling according to claim 2, characterized in that The number of the first connecting members (30) is configured to be multiple.
4. The sheet metal electrophoresis masking tooling according to claim 2, wherein An extension boss (212) is formed on the fixed base (21), and the extension boss (212) is arranged on the side of the fixed base (21) away from the fixed upper cover (22); Wherein, a part of the first connecting member (30) extends into the extension boss (212) and is screwed to the extension boss (212).
5. The sheet metal electrophoresis masking tooling according to claim 1, characterized in that, The fixed upper cover (22) can be inserted and mated with the positioning core (10).
6. The sheet metal electrophoresis masking tooling according to claim 1, characterized in that, The fixed base (21) and the positioning core (10) are detachably connected by a second connecting member (40).
7. The sheet metal electrophoresis masking tooling according to claim 6, wherein The second connecting member (40) can be screwed to the fixed base (21) after passing through the positioning core (10).
8. The sheet metal electrophoresis masking tooling according to claim 7, characterized in that, The second connecting member (40) has a limiting head (41) which can press against the positioning core (10) for limiting the positioning core (10) to the fixed base (21); Wherein, a groove (101) is formed on the positioning core (10) for receiving the limiting head (41).
9. The sheet metal electrophoresis masking tooling according to claim 6, characterized in that, The fixed base (21) can be inserted and mated with the positioning core (10).
10. The sheet metal electrophoresis masking tooling according to claim 1, wherein, The fixed base (21) and the positioning core (10) are connected as one body.