Electronic control unit integrated with 80PIN connector shell

Abstract

The utility model discloses an electronic control unit integrated with an 80PIN connector shell, which comprises a surface shell, a PCB (printed circuit board) mounted in the surface shell and a bottom shell connected with the surface shell in a buckling manner, two 40PIN placement windows are integrally and symmetrically arranged at the front end of the surface shell left and right, an annular groove for the top of the bottom shell to insert is arranged at the bottom of the surface shell, and the bottom of the surface shell is provided with an annular groove for the top of the bottom shell to insert. The face shell is provided with buckling hooks in a bilateral symmetry mode, one buckling hook is arranged in the middle of the front side of the face shell, three buckling hooks are arranged on the rear side of the face shell in a bilateral symmetry mode, two buckling hooks are arranged on the left side and the right side of the face shell, and the bottom shell is provided with clamping grooves which can be buckled with the buckling hooks in a one-to-one correspondence mode. When the face shell provided with the PCB is pressed into the bottom shell from top to bottom to complete buckling, the top of the bottom shell is inserted into the annular groove, and the press-fitting structure has the advantages that the face shell and the bottom shell are installed stably, the conception is ingenious, the structures are buckled with each other, and accurate press-fitting is achieved.

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 an 80PIN 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 face shell and the bottom shell is completely fastened by glue, but because the bottom of the face shell is directly in contact with the horizontal panel of the bottom shell and is only fixed and limited by glue, the face 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 for the face shell to be misaligned when the face shell and the bottom shell are press-fitted, resulting in press-fitting failure. Utility Model Content

[0003] The utility model aims to provide an electronic control unit with an integrated 80PIN connector shell, in which the outer shell is tightly installed and the installation orientation is accurate, thereby solving the problems that the existing surface shell and the bottom shell are easily separated due to being fixed and limited only by glue, and the square shell is not accurately positioned, resulting in press-fitting failure.

[0004] To this end, the technical solution adopted by the utility model is: an electronic control unit with an integrated 80PIN connector shell, comprising a face shell, a PCB board installed in the face shell and a bottom shell connected to the face shell by a snap-on connection, the front end of the face shell is integrally provided with two 40PIN placement windows symmetrically on the left and right, the bottom of the face shell is provided with an annular groove for the top of the bottom shell to be inserted into, the annular groove is dotted with sealant, the face shell is symmetrically provided with snap hooks, and a snap hook is provided in the center of the front side, three snap hooks are symmetrically provided on the back side, and two snap hooks are provided on the left and right sides, the bottom shell is provided with a card slot that can be snapped with the snap hooks one by one, and when the face shell with the PCB board installed is pressed from top to bottom onto the bottom shell to complete the snapping, the top of the bottom shell is inserted into the annular groove.

[0005] As a preferred embodiment of the above scheme, the blank areas on the left and right sides of the bottom surface of the PCB board are dotted with heat dissipation glue, and the bottom shell is provided with heat dissipation bosses corresponding to the blank areas on the bottom surface of the PCB board. When the surface shell and the bottom shell are buckled, the heat dissipation bosses press against the blank areas on the left and right sides of the bottom surface of the PCB board, thereby squeezing the heat dissipation glue, and through the contact between the heat dissipation bosses 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 is reduced by relying on the temperature difference with the ambient temperature. The heat dissipation performance is good, the design structure is ingenious, the space utilization rate is high, and the service life of the components is extended.

[0006] Further preferably, the PCB board is installed on the inner side of the face shell by wave soldering, and the top of the bottom shell is provided with an annular boss inserted into the annular groove, so the welding is firm and the structure is reasonable.

[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 heat dissipation boss is located on the left side of the bottom shell, and the heat dissipation bosses adopt three different sizes 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] Beneficial effects of the utility model:

[0011] (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.

[0012] (2) Compared with the square shell with inaccurate positioning causing press-fitting failure, this solution adopts a method in which snap hooks are symmetrically arranged on the left and right sides of the shell, and a snap hook is arranged in the middle of the front side, three snap hooks are symmetrically arranged on the left and right sides of the rear side, and two snap hooks are arranged on the left and right sides. The number of snap hooks on the front and back sides is inconsistent. The staff can effectively judge the position of the shell by the number of snap hooks on the front and back sides, especially when the outer shell is square in shape. This effectively avoids the staff from misjudging the installation and repeating the operation, which may cause unnecessary damage to the PCB board, thereby achieving accurate press-fitting.

[0013] In summary, it has the advantages of stable installation of the front shell and the bottom shell, ingenious design, interlocking structure, and precise press installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the parts explosion of the utility model.

[0016] Figure 3 Schematic diagram of the structure of the face shell.

[0017] Figure 4 It is a schematic diagram of the structure of the bottom shell. DETAILED DESCRIPTION

[0018] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0019] Combination Figure 1 — Figure 4 As shown, an electronic control unit with an integrated 80-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 snap-connected to the front shell 1.

[0020] The surface shell 1 is in a square structure as a whole.

[0021] The front end of the housing 1 is integrally provided with two 40-pin placement windows 11 symmetrically on the left and right.

[0022] An annular groove 13 is provided at the bottom of the surface shell 1 for the top of the bottom shell 3 to be inserted.

[0023] The surface roughness of the annular groove 13 is 6.3-25.

[0024] A sealant 131 is dotted in the annular groove 13 , and the sealant 131 is a paste-like glue.

[0025] The face shell 1 is symmetrically provided with snap hooks 12, with one snap hook 12 being arranged in the center of the front side, three snap hooks 12 being symmetrically arranged on the rear side, and two snap hooks 12 being arranged on the left and right sides.

[0026] The bottom shell 3 is provided with a latching slot 32 which can be latched with the latching hook 12 in a one-to-one correspondence.

[0027] 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 .

[0028] The PCB board 2 is installed on the inner side of the housing 1 by wave soldering.

[0029] The bottom shell 3 is provided with a heat dissipation boss 33 in a blank area on the bottom surface of the PCB board 2 .

[0030] An annular boss 31 is provided on the top of the bottom shell 3 and is inserted into the annular groove 13 .

[0031] When the front shell 1 and the bottom shell 3 are buckled together, the heat dissipation bosses 33 press against the left and right blank areas on the bottom surface of the PCB board 2 , thereby squeezing the heat dissipation glue 21 .

[0032] The heat dissipation boss 33 is located on the left side of the bottom shell 3 , and three heat dissipation bosses 33 are provided with different sizes.

[0033] When the front shell 1 with the PCB board 2 installed is pressed downward onto the bottom shell 3 to complete the buckling, the top of the bottom shell 3 is inserted into the annular groove 13.

[0034] First, the PCB board 2 and the cover 1 are welded together, and a sealant 131 is spot-coated in the annular groove 13 of the cover 1 .

[0035] 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 and buckles 33 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 an integrated 80-pin connector 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) connected to the front shell (1) by snapping, wherein the front end of the front shell (1) is integrally provided with two 40PIN placement windows (11) symmetrically on the left and right, the bottom of the front shell (1) is provided with an annular groove (13) for the top of the bottom shell (3) to be inserted, and a sealant (131) is dotted in the annular groove (13), the front shell (1) is symmetrically provided with snap hooks (12), and a snap hook (12) is provided in the center of the front side, three snap hooks (12) are provided symmetrically on the rear side, and two snap hooks (12) are provided on the left and right sides, and the bottom shell (3) is provided with a card slot (32) that can be snapped with the snap hooks (12) one by one, and when the front shell (1) with the PCB board (2) installed is pressed from top to bottom onto the bottom shell (3) to complete the snapping, the top of the bottom shell (3) is inserted into the annular groove (13).

2. The electronic control unit with an integrated 80-pin connector housing according to claim 1, characterized in that: 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 heat dissipation bosses (33) corresponding to the blank areas on the bottom surface of the PCB board (2). When the top shell (1) and the bottom shell (3) are buckled together, the heat dissipation bosses (33) press against the blank areas on the left and right sides of the bottom surface of the PCB board (2), thereby squeezing the heat dissipation glue (21).

3. The electronic control unit with an integrated 80-pin connector housing according to claim 1, characterized in that: The PCB board (2) is mounted on the inner side of the face shell (1) by wave soldering, and the top of the bottom shell (3) is provided with an annular boss (31) inserted into the annular groove (13).

4. The electronic control unit with an integrated 80-pin connector housing according to claim 1, characterized in that: The sealant (131) is a paste-like glue.

5. The electronic control unit with an integrated 80-pin connector housing according to claim 1, characterized in that: The surface roughness of the annular groove (13) is 6.3-25.

6. The electronic control unit with an integrated 80-pin connector housing according to claim 2, characterized in that: The heat dissipation boss (33) is located on the left side of the bottom shell (3), and the heat dissipation boss (33) is three in number with different sizes.

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