Electronic control unit integrated with 40PIN connector and shell
By designing the ring groove and limit board structure in the electronic control unit, combined with the buckle structure and the heat dissipation convex, the problem of the separation and positioning of the shell and the bottom shell is solved, and the heat dissipation effect is improved. The service life of the device.
Patent Information
- Application Number
- CN202421475249.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The surface shell and bottom shell of the existing electronic control unit are fixed by glue, which can easily lead to separation, and the inaccurate positioning of the square shell leads to failure of pressing, and the lack of heat dissipation measures affects the service life of the components.
Design an electronic control unit of a 40PIN connection shell, which uses a loop groove and limited plate structure to achieve stable installation of the shell and the bottom shell, and enhances the fixability through the buckle structure. Plastic, the bottom shell is equipped with a cooling convex to improve the heat dissipation effect.
The stable installation of the surface and the bottom shell is achieved, the separation is avoided, the accuracy of the pressure is ensured, and the service life of the component is extended through effective heat dissipation measures.
Smart Images
Figure CN222424359U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electronic control units, and in particular relates to an electronic control unit integrated with a 40PIN connector housing. Background Art
[0002] The design and assembly of the structural parts of the motor controller is one of the important indicators related to the sealing performance of the product, and is also an important indicator for customers to purchase. At present, the fastening of the front shell and the bottom shell is completely fastened by glue, but because the bottom of the front shell is directly in contact with the horizontal panel of the bottom shell and is only fixed and limited by glue, the back shell and the bottom shell are very easy to separate after a long time of use, resulting in the product cannot be used normally. When the outer shell adopts a square structure, it is easy to distinguish between the front, back, left and right, so it is easy to make the front shell alignment error when press-fitting the bottom shell, resulting in press-fitting failure. The current electronic control unit also lacks heat dissipation measures, which causes the components to heat up when working and cannot be cooled in time, affecting the service life of the components. Utility Model Content
[0003] The utility model aims to provide an electronic control unit with a 40PIN connector shell in one, with the shell tightly installed and accurate installation orientation, so as to solve the problems that the existing surface shell and the bottom shell are easily separated due to being fixed and limited only by glue, the square shell is not accurately positioned so as to cause press-fitting failure, and the components lack heat dissipation measures to affect the service life.
[0004] To this end, the technical solution adopted by the utility model is: an electronic control unit with an integrated 40PIN connector shell, comprising a face shell, a PCB board installed in the face shell and a bottom shell connected to the outer edge of the face shell by a snap-on connection, a single 40PIN placement window is integrally provided at the front end of the face shell, an annular groove is provided at the bottom of the face shell for the top of the bottom shell to be inserted, sealant is dotted in the annular groove, a downward limiting plate is provided in the center of the rear side of the face shell, a limiting notch is provided in the bottom shell corresponding to the limiting plate, heat dissipation glue is dotted on the left and right blank areas of the bottom surface of the PCB board, and a heat dissipation boss is provided in the blank area of the bottom surface of the PCB board corresponding to the bottom surface of the PCB board, when the face shell with the PCB board installed is pressed from top to bottom onto the bottom shell to complete the buckling, the top part of the bottom shell is inserted into the annular groove, the limiting plate is pressed down to insert into the limiting notch, and the heat dissipation boss presses against the left and right blank areas of the bottom surface of the PCB board.
[0005] As a preferred embodiment of the above scheme, two card slots close to the corners are symmetrically arranged on each side of the bottom of the face shell, and the bottom shell is provided with buckles that can be buckled into the card slots one by one, so that the face shell and the bottom shell are fastened and installed, and the design structure is reasonable.
[0006] Further preferably, the PCB board is installed on the inner side of the face shell by wave soldering, and the face shell has an overall square structure, with firm welding and reasonable structure.
[0007] More preferably, the sealant is a paste-like glue, which is convenient for extrusion and diffusion to increase the bonding contact surface, thereby ensuring the sealing effect.
[0008] More preferably, the surface roughness of the annular groove is 6.3-25, so as to ensure that the sealing glue has a large bonding contact surface and high bonding firmness.
[0009] Further preferably, the bottom shell is asymmetrically provided with two overall square heat dissipation bosses, and the sizes of the two heat dissipation bosses are inconsistent to ensure the heat dissipation effect. The size of the heat dissipation boss is designed according to the blank area of the PCB board to effectively avoid components and avoid affecting the installation and use of components. The design is reasonable.
[0010] Further preferably, a mounting boss which can be inserted into the annular groove is provided on the top of the bottom shell, and the structural design is reasonable.
[0011] Beneficial effects of the utility model:
[0012] (1) Compared with the existing surface shell and bottom shell that are only fixed and limited by glue, which makes it easy to separate, this solution adopts an annular groove set in the surface shell for the top of the bottom shell to be inserted, and the annular groove is used to achieve preliminary limiting. Then, sealant is applied in the annular groove to achieve the bonding of the surface shell and the bottom shell. The surface shell and the bottom shell are also fastened together by the snap-on structure on the outer edge to achieve double stability, effectively prevent the outer shell from separating, and the structural design is reasonable.
[0013] (2) Compared with the failure of press-fitting due to inaccurate positioning of the square shell, this solution adopts a downward limit plate in the center of the rear side of the face shell, and the bottom shell is provided with a limit notch corresponding to the limit plate. The staff can effectively judge the orientation of the face shell by the position of the limit plate, especially when the outer shell is square in shape. It effectively avoids the staff from misjudging the installation and repeating the operation, which may cause unnecessary damage to the PCB board, and realizes accurate press-fitting.
[0014] (3) Compared with the lack of heat dissipation measures for components, this solution adopts the method of applying heat dissipation glue on the blank areas on the left and right sides of the bottom surface of the PCB board, and the bottom shell is provided with a heat dissipation boss corresponding to the blank area on the bottom surface of the PCB board. Through the contact between the heat dissipation boss and the bottom surface of the PCB board, the high temperature generated by the operation of the components is transferred to the bottom shell, and the temperature difference with the ambient temperature is used to cool down. It has good heat dissipation performance, ingenious design structure, high space utilization, and extended component service life.
[0015] In summary, it has the advantages of high installation stability of the top shell and the bottom shell, precise press-fitting, good heat dissipation performance, and extended service life of components. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the parts explosion of the utility model.
[0017] Figure 2 Schematic diagram of the structure of the face shell.
[0018] Figure 3 It is a schematic diagram of the structure of the bottom shell. DETAILED DESCRIPTION
[0019] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:
[0020] Combination Figure 1 — Figure 3 As shown, an electronic control unit with a 40-pin connector housing is composed of a front shell 1, a PCB board 2 installed in the front shell 1, and a bottom shell 3 connected to the outer edge of the front shell 1 by snapping.
[0021] The surface shell 1 is in a square structure as a whole.
[0022] A single 40PIN placement window 11 is integrally provided at the front end of the face shell 1, and the connector and the shell are designed to be integrated, thereby reducing the assembly process of the product and the cost of procurement and production.
[0023] Two slots 12 close to the corners are symmetrically arranged on each side of the bottom of the housing 1 .
[0024] The PCB board 2 is installed on the inner side of the housing 1 by wave soldering.
[0025] The bottom shell 3 is provided with buckles 33 which can be buckled with the slots 12 in a one-to-one correspondence.
[0026] The bottom of the surface shell 1 is provided with an annular groove 14 for the top of the bottom shell 3 to be inserted.
[0027] The surface roughness of the annular groove 14 is 6.3-25.
[0028] A sealant 141 is dotted in the annular groove 14 , and the sealant 141 is a paste-like glue.
[0029] A downward limiting plate 13 is disposed in the center of the rear side of the housing 1 .
[0030] The bottom shell 3 is provided with a limiting notch 31 corresponding to the limiting plate 13 .
[0031] A mounting boss 34 which can be inserted into the annular groove 14 is provided on the top of the bottom shell 3 .
[0032] The staff can effectively judge the orientation of the face shell by the position of the limit plate, especially when the outer shell is square in shape. This can effectively prevent the staff from misjudging and installing it incorrectly, repeating operations, and causing unnecessary damage to the PCB board, thereby achieving precise press-fitting.
[0033] The blank areas on the left and right sides of the bottom surface of the PCB board 2 are dotted with heat dissipation glue 21 .
[0034] The bottom shell 3 is provided with a heat dissipation boss 32 in a blank area on the bottom surface of the PCB board 2 .
[0035] The bottom shell 3 is asymmetrically provided with two heat dissipation bosses 32 which are square in shape as a whole, and the sizes of the two heat dissipation bosses 32 on the left and right sides are inconsistent.
[0036] When the front shell 1 with the PCB board 2 installed is pressed downward from top to bottom to complete the buckling, the bottom of the front shell 1 is inserted into the annular groove 14, the limiting plate 13 is pressed down to insert into the limiting notch 31, and the heat dissipation boss 32 presses against the blank areas on the left and right sides of the bottom surface of the PCB board 2.
[0037] First, the PCB board 2 and the cover 1 are welded together, and a sealant 141 is spot-coated in the annular groove 14 of the cover 1 .
[0038] Then apply heat dissipation glue 21 on the PCB board 2, and finally press the bottom shell 3 onto the face shell 1 according to the corresponding slots 12, buckles 33, limit plates 13, and limit notches 31 of the face shell 1 and the bottom shell 3, until the buckle structures of the face shell 1 and the bottom shell 3 are fully buckled into place.
Claims
1. An electronic control unit with a 40-pin connector and a housing, characterized in that: The invention comprises a front shell (1), a PCB board (2) installed in the front shell (1), and a bottom shell (3) snap-connected to the outer edge of the front shell (1), wherein the front end of the front shell (1) is integrally provided with a single 40PIN placement window (11), the bottom of the front shell (1) is provided with an annular groove (14) for the top of the bottom shell (3) to be inserted, and a sealant (141) is dotted in the annular groove (14), and a downward limiting plate (13) is provided in the center of the rear side of the front shell (1), and the bottom shell (3) corresponds to the limiting plate (13). A limiting notch (31) is provided, and the blank areas on the left and right sides of the bottom surface of the PCB board (2) are dotted with heat dissipation glue (21), and the bottom shell (3) is provided with a heat dissipation boss (32) corresponding to the blank areas on the bottom surface of the PCB board (2). When the bottom shell (3) is pressed upward to the surface shell (1) on which the PCB board (2) is installed to complete the buckling, the top of the bottom shell (3) is inserted into the annular groove (14), the limiting plate (13) is pressed downward to be inserted into the limiting notch (31), and the heat dissipation boss (32) abuts against the blank areas on the left and right sides of the bottom surface of the PCB board (2).
2. The electronic control unit with a 40-pin connector and a housing as described in claim 1, characterized in that: Two clamping grooves (12) close to the corners are symmetrically arranged on each side of the bottom of the surface shell (1), and the bottom shell (3) is provided with clamping buckles (33) that can be buckled with the clamping grooves (12) in a one-to-one correspondence.
3. The electronic control unit with a 40-pin connector and a housing as claimed in claim 1, characterized in that: The PCB board (2) is installed on the inner side of the face shell (1) by wave soldering, and the face shell (1) is in an overall square structure.
4. The electronic control unit with a 40-pin connector and a housing as claimed in claim 1, characterized in that: The sealant (141) is a paste-like glue.
5. The electronic control unit with a 40-pin connector and a housing as claimed in claim 1, characterized in that: The surface roughness of the annular groove (14) is 6.3-25.
6. The electronic control unit with a 40-pin connector and a housing as claimed in claim 1, characterized in that: The bottom shell (3) is asymmetrically provided with two heat dissipation bosses (32) which are in a square shape as a whole, and the sizes of the two heat dissipation bosses (32) on the left and right are inconsistent.
7. The electronic control unit with a 40-pin connector and a housing as claimed in claim 1, characterized in that: The top of the bottom shell (3) is provided with a mounting boss (34) which can be inserted into the annular groove (14).