CN220368927U - Automobile domain controller - Google Patents
Automobile domain controller Download PDFInfo
- Publication number
- CN220368927U CN220368927U CN202222811011.0U CN202222811011U CN220368927U CN 220368927 U CN220368927 U CN 220368927U CN 202222811011 U CN202222811011 U CN 202222811011U CN 220368927 U CN220368927 U CN 220368927U
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- CN
- China
- Prior art keywords
- circuit board
- shell
- domain controller
- bottom plate
- riveting
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- 238000009434 installation Methods 0.000 claims description 5
- 239000011257 shell material Substances 0.000 abstract description 30
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 239000000047 product Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013066 combination product Substances 0.000 description 1
- 229940127555 combination product Drugs 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Mounting Of Printed Circuit Boards And The Like (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The utility model discloses an automobile domain controller, which comprises a circuit board and a shell, wherein the circuit board and the shell are arranged inside the automobile domain controller, the shell comprises a bottom plate for installing the circuit board, and the circuit board is detachably fixed on the bottom plate. According to the automobile domain controller provided by the utility model, the aluminum alloy plate with high elongation is selected as the shell material for stamping, so that the threaded bottom hole for installing the circuit board is formed on the shell, and then the threaded bottom hole is tapped for processing, so that the circuit board is fixedly connected with the shell through the bolts, the problems that the circuit board is easily damaged by a riveting press when being riveted with the shell, the disassembly after riveting is difficult, the IP protection level is low, the mechanical property is unstable and the like are avoided, and the automobile domain controller is suitable for meeting the requirements of various severe working conditions, complex vibration environments, high-low temperature impact, high IP protection level and the like.
Description
Technical Field
The utility model relates to the technical field of automobile domain controllers, in particular to an automobile domain controller.
Background
The stamping process is a common production and processing process, has the characteristics of wide application range, low cost of single piece and high production efficiency, and in order to reduce the manufacturing cost and control the weight of the automobile, automobile manufacturers generally adopt sheet stamping to lighten the dead weight of the automobile body structural part. The automobile domain controller belongs to a combination product of a mechanical structure and a circuit board, most of used structural parts are manufactured by adopting a stamping process, and the circuit board and the mechanical structure are riveted and fixed by utilizing a riveting process, so that the product meets the requirements of vibration resistance and protection.
In the actual production process at present, the riveting process mainly comprises boss riveting and nut riveting, and has the following technical defects: (1) disassembly difficulty brought after riveting and fixing: once the circuit board is riveted with the structure, only the shell is destroyed when the circuit board is required to be disassembled and repaired, so that the production waste is caused, and the labor cost is increased; (2) the circuit board is easy to crush in a riveting mode; (3) the riveting circuit board has high pressure precision and positioning requirements on the squeeze riveter, so that the equipment and process cost is high; (4) the mode of riveting the nut is insufficient in tightness and is not applicable to a vehicle body controller requiring water resistance and dust resistance.
Therefore, in order to solve the problem of fixing the circuit board caused by the traditional stamping process, the fixing mode of the circuit board in the existing automobile domain controller needs to be improved, so that the problems that the circuit board is easily damaged by a squeeze riveter when being riveted with a shell, the circuit board is difficult to detach after being riveted, the IP protection level is low, the mechanical property is unstable and the like can be solved.
Disclosure of Invention
In view of the above, the automobile domain controller provided by the utility model is characterized in that the aluminum alloy plate with high elongation is selected as a shell material for stamping, so that a threaded bottom hole for installing a circuit board is formed on the shell, and then the threaded bottom hole is tapped for processing, so that the circuit board is fixedly connected with the shell through bolts, and the problems that the circuit board is easily damaged by a squeeze riveter when being riveted with the shell, difficult to detach after riveting, low in IP protection level, unstable in mechanical property and the like are avoided, so that the automobile domain controller is suitable for meeting the requirements of various severe working conditions, complex vibration environments, high-low temperature impact, high IP protection level and the like.
The shell of the automobile domain controller comprises a circuit board and a shell, wherein the circuit board and the shell are arranged inside the automobile domain controller, the shell comprises a bottom plate for installing the circuit board, and the circuit board is detachably fixed on the bottom plate.
Further, a plurality of connecting pieces are arranged between the circuit board and the bottom plate, and the circuit board is detachably fixed on the bottom plate through the connecting pieces.
Further, the bottom plate is provided with a plurality of protruding surfaces in the circuit board installation area, and the protruding surfaces are formed by protruding upwards from the bottom plate.
Further, the convex surface is provided with a plurality of supporting bosses for supporting the circuit board near four corners of the circuit board, and the supporting bosses are formed by upward convex surfaces.
Further, the support boss is provided with a mounting groove for mounting the connecting piece.
Further, the mounting groove is formed by downwards sinking the upper surface of the supporting boss, and threads are tapped in the groove.
Further, the circuit board is provided with a mounting hole which is used for being connected with the connecting piece at a position corresponding to the mounting groove of the bottom plate.
Further, the connecting piece passes through the mounting hole of the circuit board and is in threaded connection with the mounting groove of the bottom plate to fix the circuit board and the bottom plate.
In summary, the present utility model comprises at least one of the following beneficial effects:
(1) the problem that the circuit board is difficult to detach after being riveted and fixed with the shell is solved, and the repair of defective products in the early production stage is convenient; meanwhile, the shell is fixed by a screw mode, so that the shell is convenient to assemble and disassemble, the shell is not required to be damaged, and the production cost is saved;
(2) according to the riveting machine, the bolts are used for replacing riveting to fix the circuit board and the shell, when the circuit board is disassembled and assembled, the bolts can be screwed or unscrewed only by a small tool, the screwing force is small and is easy to control, the phenomenon that the circuit board is crushed by ton-level pressure generated in the riveting process when the riveting machine is used is avoided, and because the cost of a single board of the controller is very high, the cost is greatly saved, and meanwhile, the complex quality detection process is also avoided;
(3) the circuit board can be disassembled and assembled by simple equipment, equipment cost brought by high-precision pressure equipment is replaced, meanwhile, the volume of screwing equipment is far smaller than that of riveting equipment, and the production operation space is saved;
(4) this patent has solved the problem of leakproofness and reliability that riveting nut brought: in order to avoid the defect of a press riveting fixing mode, some products can use riveting nuts and screws to replace riveting, but the mode can only be used for products with low sealing requirements and good working conditions; because the screw mounting groove and the shell are integrated, the problems of riveting gaps and riveting strength do not exist.
Drawings
FIG. 1 is a schematic diagram of a circuit board assembly of the present utility model;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of a housing structure according to the present utility model; .
Reference numerals illustrate: 1-a bottom plate; 2-a circuit board; 3-screws; 11-convex surface; 12-supporting the boss; 13-mounting slots.
Detailed Description
As shown in the figure, the automobile domain controller provided by the utility model comprises a circuit board 2 arranged in the automobile domain controller and a shell, wherein the shell comprises a bottom plate 1 for installing the circuit board 2, and the circuit board 2 is detachably fixed on the bottom plate 1.
In this embodiment, the riveting fixation between the circuit board 2 and the housing in the conventional automotive domain controller is mainly improved to be in a detachable fixation form between the circuit board and the housing, so as to solve the problems that the circuit board is easily damaged by the squeeze riveter when riveting with the housing, and the disassembly is difficult after riveting, and the like, and save the production and manufacturing cost. The circuit board 2 is a carrier integrated with a plurality of control unit electronic elements in the conventional technology, the shell is used as a structural member of the domain controller for installing and protecting the circuit board, and the shell is generally divided into an upper part and a lower part and is respectively manufactured through a stamping process and then assembled with the circuit board 2 to form a controller whole; the bottom plate 2 mainly related in the embodiment belongs to the lower part of the shell, is mainly used for placing the circuit board and detachably fixing the circuit board on the bottom plate, wherein the detachable fixing method comprises, but is not limited to, threaded connection, clamping connection and the like; the aluminum alloy plate 2024-T351 with high elongation is selected for the bottom plate 2, the production cost is reduced by reducing the stretching times required for forming the bottom plate 2, and meanwhile, the cracking risk caused by repeated stretching can be effectively reduced due to high elongation.
In this embodiment, as shown in fig. 1, a plurality of connectors are disposed between the circuit board 2 and the base plate 1, and the circuit board 2 is detachably fixed on the base plate 1 through the connectors; the connecting piece is a screw 3 in the conventional technology, and the circuit board 2 can be fixed on the bottom plate 1 only by screwing the screw 3, so that the riveting fixing of the circuit board 2 and the bottom plate 1 by using a riveting press in the conventional technology is avoided; the screw connection structure of the circuit board 2 and the bottom plate in the embodiment realizes the disassembly and assembly of the circuit board by simple equipment, replaces equipment cost brought by using high-precision pressure equipment, and saves production operation space by screwing down equipment with a volume far smaller than that of riveting equipment.
In this embodiment, as shown in fig. 3, the base plate 1 has a plurality of convex surfaces 11 distributed in the mounting area of the circuit board 2, and the convex surfaces 11 are formed by upward protrusion of the base plate; meanwhile, the convex surface 11 is provided with a plurality of supporting bosses 12 for supporting the circuit board 2 near four corners of the circuit board 2, and the supporting bosses 12 are formed by upward convex of the convex surface 11. The middle square area of the bottom plate 1 is an installation area for placing the circuit board 2, the two sides of the length direction of the installation area of the bottom plate 1 are punched to form a convex surface 11, and then a supporting boss 2 for supporting the circuit board 2 is punched on the convex surface 11 of the bottom plate 1; the number of the supporting bosses 2 is four, and the supporting bosses are respectively distributed at the installation areas of the bottom plate 1 near four corners.
In the present embodiment, as shown in fig. 3, the support boss 12 is provided with a mounting groove 13 for mounting the screw 3; the mounting groove 13 is formed by punching down the upper surface of the support boss 12, and the punching depth of the mounting groove should be smaller than the boss height of the boss face 11, and then threading is performed in the mounting groove 13; the threads and the bottom plate 1 are integrated by tapping the threads in the mounting groove 13, subsequent thread riveting is not needed, and the problems of riveting gaps and riveting strength are avoided, so that the problems of low IP protection level, unstable mechanical property and the like caused by the traditional riveting screw are avoided.
In this embodiment, as shown in fig. 1 and 2, the circuit board 2 is provided with mounting holes for connecting with the screws 3 at positions corresponding to the mounting grooves 13 of the bottom plate 1; the screws 3 penetrate through the mounting holes of the circuit board 2 and are in threaded connection with the mounting grooves 13 of the bottom plate 1 to fix the circuit board 2 and the bottom plate 1; through arranging through holes corresponding to the positions of the four supporting bosses 12 on the circuit board 2, the circuit board 2 and the bottom plate 1 are firmly connected together by the screws 3, so that the requirements of various severe working conditions, complex vibration environments, high-low temperature impact, high IP protection level and the like of an automobile domain controller can be met; and meanwhile, the screw 3 is used for connection, so that the repair of defective products in the early production stage can be facilitated, the disassembly and the assembly are convenient, the shell cannot be damaged, and the production cost can be saved.
In the embodiment, firstly, the aluminum alloy plate with high elongation is selected as the bottom plate material, and the drawing of the depth of the thread bottom hole is realized by the least drawing times from the stamping process, so that the production cost is saved; then, by optimizing the stretching process, the stretching speed is reduced, and a proper process scheme such as stretching oil is selected to reduce the risk of stamping cracking; finally, tapping processing is carried out in the screw mounting groove after the stamping is finished, so that the processing of the riveting-free structure of the stamping shell of the controller is finished; the circuit board 2 can be fixed on the bottom plate 1 only by the screws 3.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (6)
1. An automotive domain controller, characterized by: the automobile domain controller comprises a circuit board and a shell, wherein the circuit board and the shell are arranged inside the automobile domain controller, the shell comprises a bottom plate for installing the circuit board, and the circuit board is detachably fixed on the bottom plate; a plurality of connecting pieces are arranged between the circuit board and the bottom plate, and the circuit board is detachably fixed on the bottom plate through the connecting pieces; the base plate is provided with a plurality of protruding surfaces in the circuit board installation area, and the protruding surfaces are formed by upwards protruding the base plate.
2. The automotive domain controller of claim 1, wherein: the convex surface is provided with a plurality of supporting bosses for supporting the circuit board near four corners of the circuit board, and the supporting bosses are formed by upward convex surface.
3. The automotive domain controller of claim 2, wherein: the support boss is provided with a mounting groove for mounting the connecting piece.
4. A car domain controller according to claim 3, characterized in that: the mounting groove is formed by downwards sinking the upper surface of the supporting boss, and threads are tapped in the groove.
5. The automotive domain controller of claim 1, wherein: the circuit board is provided with a mounting hole which is used for being connected with the connecting piece at a position corresponding to the mounting groove of the bottom plate.
6. The automotive domain controller of claim 5, wherein: the connecting piece passes through the mounting hole of the circuit board and is in threaded connection with the mounting groove of the bottom plate to fix the circuit board and the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222811011.0U CN220368927U (en) | 2022-10-25 | 2022-10-25 | Automobile domain controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222811011.0U CN220368927U (en) | 2022-10-25 | 2022-10-25 | Automobile domain controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220368927U true CN220368927U (en) | 2024-01-19 |
Family
ID=89521295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222811011.0U Active CN220368927U (en) | 2022-10-25 | 2022-10-25 | Automobile domain controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220368927U (en) |
-
2022
- 2022-10-25 CN CN202222811011.0U patent/CN220368927U/en active Active
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