Shell screw jig for vehicle control unit

Abstract

The utility model relates to the technical field of screwing jigs, and provides a shell screwing jig for a vehicle control unit, which comprises a support bottom plate, a cover plate, a hinge and a limit support assembly, the cover plate is arranged on the upper side of the support bottom plate and is connected with the support bottom plate through the hinge, the limit support assembly is fixedly mounted on the support bottom plate, and the limit support assembly is connected with the support bottom plate through the hinge. The limiting support assembly is used for containing a shell of the vehicle control unit, the cover plate is provided with a prefabricated screw through hole, and the prefabricated screw through hole and a screw hole in the shell of the vehicle control unit are coaxially arranged. And screw position deviation caused by workpiece movement in the screw driving process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of screw-driving fixture technology, and in particular to a housing screw fixture for a vehicle control unit. Background Technology

[0002] The housing of a vehicle control unit is typically made of plastic, metal, or composite materials. This housing protects the internal electronic components from dust, moisture, and other environmental factors. The vehicle control unit generates heat during operation, requiring the housing to have sufficient heat dissipation capacity to prevent overheating. The housing also provides electromagnetic shielding to reduce electromagnetic interference and protect the internal circuitry from external electromagnetic fields. To enhance ease of installation, the housing has four screw holes on its outer surface for easy assembly and disassembly.

[0003] For example, the vehicle control unit hardware anti-interference device disclosed in application number CN202020110422.5 includes a fixed housing, a main control chip is disposed inside the fixed housing, an optocoupler module is disposed at the top of the main control chip, a fixing plate is disposed inside the fixed housing, a traction spring is disposed between the fixing plate and the inner wall of the fixed housing, the fixing plate is configured as multiple clamping plates, protective pads are disposed at the gaps between the fixing plates, and a support plate is disposed at the bottom of the fixing plate.

[0004] However, during the production process, it is necessary to quickly, accurately, and stably install screws onto the housing of the vehicle control unit. There is an urgent need for a housing screw fixture for the vehicle control unit to meet practical needs. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a housing screw fixture for a vehicle control unit.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A housing screw fixture for a vehicle control unit includes: a support base plate, a cover plate, a hinge, and a limiting support assembly. The cover plate is disposed on the upper side of the support base plate and is connected to the support base plate by the hinge. The limiting support assembly is fixedly mounted on the support base plate and is used to place the housing of the vehicle control unit. The cover plate is provided with pre-drilled screw through holes, which are coaxially arranged with the screw holes on the housing of the vehicle control unit.

[0008] Preferably, the supporting base plate includes: a base plate body, a side support connecting plate, and support pads. The side support connecting plate is fixedly installed on the rear side of the upper surface of the base plate body. The upper side of the side support connecting plate is connected to the cover plate by a hinge. Four sets of support pads are provided, and the four sets of support pads are located at the four corners of the lower side of the base plate body.

[0009] Preferably, the base plate body is provided with a hand slot, which is located on the front side below the outer shell.

[0010] Preferably, the pre-made screw through hole is a tapered countersunk hole.

[0011] Preferably, the limiting support assembly includes: a first corner seat and a second corner seat, each of the first corner seat and the second corner seat is provided in two sets, the two sets of first corner seats and the two sets of second corner seats are arranged in parallel at the four upper corners of the support base plate, and the first corner seats and the second corner seats are used to support and limit the outer shell.

[0012] Preferably, the first and second corner brackets have the same structure, both being L-shaped.

[0013] Preferably, the first corner seat includes: a support surface, a first limiting surface, a second limiting surface, and a transition surface. The support surface is perpendicular to the first limiting surface, the second limiting surface, and the transition surface, respectively. The first limiting surface is connected to the second limiting surface through the transition surface. The first limiting surface and the second limiting surface are perpendicular to each other. The transition surface is an arc surface.

[0014] Preferably, a label is provided on one side of the prefabricated screw through hole.

[0015] The advantages of this utility model are as follows: This utility model fixes the outer shell of the vehicle control unit by setting a supporting base plate, a cover plate, and a limiting support assembly, and then screws are driven into the screw holes on the outer shell of the vehicle control unit through pre-made screw through holes. This allows the screws to be installed onto the outer shell of the vehicle control unit quickly, accurately, and stably, avoiding the screw position shift caused by workpiece movement during the screwing process. Attached Figure Description

[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the cover plate covering the supporting base plate of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the cover plate of this utility model when it is opened;

[0019] Figure 3 This is a schematic diagram of the structure of the supporting base plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the limiting support assembly of this utility model;

[0021] Figure 5 This is a structural schematic diagram of the first corner seat of this utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the cover plate of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Support base plate; 2. Cover plate; 3. Hinge; 4. Limiting support assembly; 5. Housing; 6. Pre-fabricated screw through holes; 7. Screw holes; 11. Base plate body; 12. Side support connecting plate; 13. Support pad; 111. Hand groove; 41. First corner bracket; 42. Second corner bracket; 411. Support surface; 412. First limiting surface; 413. Second limiting surface; 414. Transition surface; 8. Label. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1, combined with Figure 1 and Figure 2 Explanation:

[0029] A housing screw fixture for a vehicle control unit includes: a support base plate 1, a cover plate 2, a hinge 3, and a limiting support assembly 4. The cover plate 2 is disposed on the upper side of the support base plate 1 and is connected to the support base plate 1 via the hinge 3. The cover plate 2 can be opened and closed by connecting to the support base plate 1 via the hinge 3.

[0030] The limiting support assembly 4 is fixedly installed on the support base plate 1. The housing 5 of the vehicle control unit is placed on the limiting support assembly 4. The limiting support assembly 4 is fixedly installed on the support base plate 1 to place the housing 5. This allows for quick replacement of the control unit position, is suitable for mass production, and improves production efficiency.

[0031] The cover plate 2 is provided with pre-made screw through holes 6. The pre-made screw through holes 6 are coaxially arranged with the screw holes 7 on the housing 5 of the vehicle control unit. The coaxial arrangement of the pre-made screw through holes 6 and the screw holes 7 on the housing 5 of the vehicle control unit can ensure that the screws are accurately positioned in the screw holes of the housing, thereby improving the accuracy of assembly.

[0032] The pre-fabricated screw through-hole 6 is a tapered countersunk hole. The tapered design helps screwdrivers or automated screw-pressurizing machines align the screw hole more easily, especially on automated assembly lines, improving efficiency. The tapered countersunk hole better secures the screw head, preventing the screw from falling off or shifting during tightening. The tapered design reduces damage to the screw head and threads during screwing, extending the screw's lifespan.

[0033] Using jigs can reduce errors during manual operation because the design of jigs limits the scope and method of operation, thus reducing the difficulty of operation.

[0034] Example 2, based on Example 1, combined with... Figure 3 Explanation:

[0035] The supporting base plate 1 includes: a base plate body 11, a side support connecting plate 12, and a support pad 13. The side support connecting plate 12 is fixedly installed on the rear side of the upper surface of the base plate body 11. The upper side of the side support connecting plate 12 is connected to the cover plate 2 via a hinge 3. The side support connecting plate 12 is fixed to the base plate body 11, providing stable support for the cover plate 2, making the entire fixture structure more stable and less prone to deformation. The hinge 3 connects the side support connecting plate 12 and the cover plate 2, allowing the cover plate to be easily opened and closed, facilitating operation by the operator when assembling and disassembling the vehicle control unit housing.

[0036] Four sets of support pads 13 are provided, and the four sets of support pads 13 are located at the four corners of the lower side of the base plate body 11. The support pads 13 located at the four corners of the base plate body 11 can evenly distribute the weight of the outer shell 5, reduce local pressure on the base plate body, and prevent deformation of the base plate. The support pads 13 can also play a cushioning role, protecting the outer shell 5 from damage during placement and operation.

[0037] A hand slot 111 is provided above the base plate body 11, and the hand slot 111 is located on the lower front side of the outer casing 5. The hand slot 111 provides space for the operator to manually grasp or place the outer casing. The hand slot helps to position the outer casing, ensuring its correct position on the fixture and reducing assembly errors.

[0038] Example 3, based on Example 2, combined with Figure 4 and Figure 5 Explanation:

[0039] The limiting support assembly 4 includes: a first corner seat 41 and a second corner seat 42. Each of the first corner seat 41 and the second corner seat 42 is provided in two sets. Through the precise limiting of the first corner seat 41 and the second corner seat 42, the adjustment and calibration time can be reduced, thereby improving production efficiency.

[0040] Two sets of first corner brackets 41 and two sets of second corner brackets 42 are arranged in parallel at the four corners of the upper side of the support base plate 1. The first corner brackets 41 and the second corner brackets 42 are used to support and limit the outer shell 5. The first corner brackets 41 and the second corner brackets 42 are arranged at the four corners of the support base plate 1 to support and limit the outer shell 5, ensuring that the outer shell is in a fixed position and will not move during operation, thereby improving assembly accuracy.

[0041] The first corner bracket 41 and the second corner bracket 42 have the same structure, both being L-shaped. The L-shaped design provides a stable support point, ensuring the housing remains stable during screw tightening and reducing assembly errors caused by vibration. The identical structure of the first corner bracket 41 and the second corner bracket 42 simplifies spare parts management and maintenance.

[0042] The first corner bracket 41 includes a support surface 411, a first limiting surface 412, a second limiting surface 413, and a transition surface 414. The support surface 411 is perpendicular to the first limiting surface 412, the second limiting surface 413, and the transition surface 414, respectively. The first limiting surface 412 and the second limiting surface 413 are perpendicular to each other, which can limit different surfaces of the shell and ensure the correct position of the shell in multiple directions.

[0043] The first limiting surface 412 is connected to the second limiting surface 413 via a transition surface 414. The first limiting surface 412 and the second limiting surface 413 are set perpendicularly, and the transition surface 414 is an arc surface. The arc surface transition can reduce stress concentration and avoid damage to the outer shell during the limiting process.

[0044] Example 4, based on Example 3, combined with Figure 6 Explanation:

[0045] A label 8 is provided on one side of the prefabricated screw through hole 6. This design allows workers to quickly identify the location where screws need to be driven.

[0046] The working principle of this utility model is as follows: When using this utility model, open the cover plate 2, then place the housing 5 of the vehicle control unit between the first corner bracket 41 and the second corner bracket 42 to fix it. Then, close the cover plate 2, and screw into the screw hole 7 on the housing 5 of the vehicle control unit through the pre-made screw through hole 6. This utility model has a reasonable structure and is easy to use. It can quickly, accurately and stably install screws onto the housing 5 of the vehicle control unit, avoiding screw position displacement caused by workpiece movement during screwing.

[0047] For those skilled in the art, this utility model is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model; therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A housing screw fixture for a vehicle control unit, characterized in that, include: The support base plate (1), cover plate (2), hinge (3) and limiting support assembly (4) are provided. The cover plate (2) is set on the upper side of the support base plate (1). The cover plate (2) is connected to the support base plate (1) by the hinge (3). The limiting support assembly (4) is fixedly installed on the support base plate (1). The limiting support assembly (4) is used to place the housing (5) of the vehicle control unit. The cover plate (2) is provided with a pre-made screw through hole (6). The pre-made screw through hole (6) is coaxially set with the screw hole (7) on the housing (5) of the vehicle control unit. The supporting base plate (1) includes: a base plate body (11), a side support connecting plate (12) and a support pad (13). The side support connecting plate (12) is fixedly installed on the rear side of the upper surface of the base plate body (11). The upper side of the side support connecting plate (12) is connected to the cover plate (2) through a hinge (3). The support pad (13) is provided in four sets, and the four sets of support pads (13) are provided at the four corners of the lower side of the base plate body (11). The limiting support assembly (4) includes: a first corner seat (41) and a second corner seat (42). The first corner seat (41) and the second corner seat (42) are each provided in two sets. The two sets of first corner seats (41) and the two sets of second corner seats (42) are arranged in parallel at the four corners of the upper side of the supporting base plate (1). The first corner seat (41) and the second corner seat (42) are used to support and limit the outer shell (5).

2. A housing screw fixture for a vehicle control unit according to claim 1, characterized in that, A hand slot (111) is provided above the base plate body (11), and the hand slot (111) is located on the front side below the outer shell (5).

3. A housing screw fixture for a vehicle control unit according to claim 1, characterized in that, The prefabricated screw through hole (6) is a tapered countersunk hole.

4. A housing screw fixture for a vehicle control unit according to claim 1, characterized in that, The first corner bracket (41) and the second corner bracket (42) have the same structure, both being L-shaped.

5. A housing screw fixture for a vehicle control unit according to claim 1, characterized in that, The first corner seat (41) includes: a support surface (411), a first limiting surface (412), a second limiting surface (413), and a transition surface (414). The support surface (411) is perpendicular to the first limiting surface (412), the second limiting surface (413), and the transition surface (414), respectively. The first limiting surface (412) is connected to the second limiting surface (413) through the transition surface (414). The first limiting surface (412) and the second limiting surface (413) are perpendicular to each other. The transition surface (414) is an arc surface.

6. A housing screw fixture for a vehicle control unit according to claim 1, characterized in that, A label (8) is provided on one side of the prefabricated screw through hole (6).

Images