Dustproof and waterproof automobile electronic controller

Abstract

The application relates to the technical field of automobile electronic controllers, in particular to a dustproof and waterproof automobile electronic controller, which comprises a shell, a PCBA installed in the shell, a pin fixedly connected with the PCBA installed in the shell, an upper shell and a lower shell, wherein the upper shell comprises an integrated connector and a mounting portion; the connector is located outside the shell; the mounting portion is located inside the shell; one end of the pin is located in the connector; the other end of the pin is fixedly installed on the mounting portion; and the upper shell and the lower shell are elastically attached and sealed. The connector and the mounting portion are integrally formed with the upper shell, the mounting gap of the electronic controller is reduced, dust and water are effectively prevented from entering the shell, the upper shell and the lower shell are elastically attached and sealed, and the dustproof and waterproof performance of the electronic controller is further improved.

Description

Technical Field

[0001] This application relates to the technical field of automotive electronic controllers, and in particular to a dustproof and waterproof automotive electronic controller. Background Technology

[0002] The automotive electronic controller is the core component of the automotive electronic system. It is responsible for receiving, processing, and sending various signals to ensure the normal operation of various automotive systems. One of the waterproof and dustproof standards for automotive electronic controllers is IP67, which requires the product to be completely protected against dust intrusion and to be able to be submerged in water of a certain depth for a short period of time without damage. The electronic controller contains a PCBA, which is a printed circuit board assembly that integrates various electronic components such as microprocessors, chips, resistors, and capacitors on a printed circuit board to realize functions such as signal processing, control logic operation, data storage, communication, and drive actuators.

[0003] The electronic controller includes an upper housing and a lower housing for fixed mounting of the PCBA. A connector is installed between the upper housing and the lower housing. One end of the connector is located inside the electronic controller housing, and the other end is located outside the electronic controller housing. The connector located outside the electronic controller housing has a socket. The connector has pins for transmitting signals installed inside the connector. One end of the pin is located inside the electronic controller housing and is fixed to the PCBA, while the other end is located in the socket and connected to an external device.

[0004] The connector is installed between the upper and lower housings. There is a gap between the connector and the upper and lower housings during installation. The dustproof and waterproof performance of the electronic controller is poor and does not meet the requirements of IP67 protection level.

[0005] Therefore, a dustproof and waterproof automotive electronic controller is needed to solve the problem that the existing electronic controllers cannot meet the requirements for waterproof and dustproof performance. Utility Model Content

[0006] This application provides a dustproof and waterproof automotive electronic controller, the purpose of which is to improve the integral molding degree of the electronic controller.

[0007] This application provides a dustproof and waterproof automotive electronic controller, which adopts the following technical solution: A dustproof and waterproof automotive electronic controller includes a housing and a PCBA installed inside the housing. Pins that are fixedly connected to the PCBA are installed inside the housing. The housing includes an upper housing and a lower housing. The upper housing includes an integrally formed connector and a mounting part. The connector is located outside the housing, and the mounting part is located inside the housing. One end of the pin is located inside the connector, and the other end is fixedly mounted on the mounting part. The upper housing and the lower housing are elastically fitted and sealed.

[0008] By adopting the above technical solution, the connector and mounting part are integrally formed with the upper shell, which improves the stability of the electronic controller structure, reduces the installation gap of the electronic controller, and effectively prevents dust and water from entering the shell. The elastic fit and seal between the upper shell and the lower shell further improves the dustproof and waterproof performance of the electronic controller.

[0009] Optionally, a sealing groove is provided at the end face of the lower housing, and a sealing protrusion adapted to the sealing groove is fixedly installed at the end face of the upper housing.

[0010] By adopting the above technical solution, the sealing performance between the upper and lower housings is enhanced, effectively preventing external dust and moisture from entering the housing, thereby improving the reliability and stability of the electronic controller.

[0011] Optionally, the sealing groove is coated with an elastic sealant.

[0012] By adopting the above technical solution, the elastic sealant further enhances the sealing performance between the upper and lower shells, effectively preventing dust and moisture from entering the shell. The elastic sealant has good elasticity and flexibility, which can effectively adapt to the deformation of the upper and lower shells, so that the upper and lower shells maintain long-term sealing performance.

[0013] Optionally, the upper housing has a recessed groove, and the lower housing has a protruding buckle that engages with the groove.

[0014] By adopting the above technical solution, the slot and the buckle are engaged to enhance the connection strength between the upper and lower housings, preventing the housings from separating due to vibration or impact, thereby improving the stability and reliability of the electronic controller. The snap-fit ​​structure is simple and reliable, and is easy to replace and maintain.

[0015] Optionally, a boss is integrally formed inside the upper shell, and a vent is provided at the boss that penetrates the inside and outside of the upper shell. A waterproof and breathable membrane covering the vent is fixedly installed on the boss.

[0016] By adopting the above technical solution, the setting of the vent can realize the effective exchange of air inside and outside the shell, ensuring that the electronic controller is at a suitable working temperature. The vent is covered with a waterproof and breathable membrane, which can effectively prevent external moisture from entering the shell while ensuring that the electronic controller has good air permeability, thereby ensuring the dustproof and waterproof performance of the electronic controller.

[0017] Optionally, the vent has two obstructions protruding from it at different heights, and the two obstructions and the vent together form a curved airflow channel.

[0018] By adopting the above technical solution, the curved airflow channel can effectively block dust and moisture from entering the housing, while ensuring air circulation and improving the reliability and stability of the electronic controller.

[0019] Optionally, the upper housing is integrally formed with a first locking hole, and the PCBA is detachably connected with a locking element that is threaded into the first locking hole.

[0020] By adopting the above technical solution, the first locking hole and the locking component are threaded together, which can firmly fix the PCBA to the upper housing, improving the safety and stability of the PCBA in the housing. The first locking hole and the locking component are detachable, which facilitates later maintenance and replacement.

[0021] Optionally, a plurality of thermally conductive protrusions are formed inside the lower housing, and the thermally conductive protrusions are coated with thermally conductive adhesive.

[0022] By adopting the above technical solution, the lower housing shortens the distance to the PCBA through the heat-conducting protrusions, accelerates the heat transfer from the PCBA to the outside, and improves the heat conduction efficiency. At the same time, the heat-conducting adhesive applied to the heat-conducting protrusions further enhances the heat transfer effect, ensuring the stability and reliability of the PCBA in high-temperature environments.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. The connector and mounting part are integrally formed with the upper shell, which improves the stability of the electronic controller structure, reduces the installation gap of the electronic controller, and effectively prevents dust and water from entering the shell. The elastic fit and seal between the upper shell and the lower shell further improves the dustproof and waterproof performance of the electronic controller. 2. The elastic sealant in the sealing groove further enhances the sealing performance between the upper and lower housings, effectively preventing dust and moisture from entering the housing. The elastic sealant has good elasticity and flexibility, which can effectively adapt to the deformation of the upper and lower housings, so that the upper and lower housings maintain long-term sealing performance. 3. The vents on the upper housing allow for effective air exchange between the inside and outside of the housing, ensuring that the electronic controller is kept at a suitable operating temperature. The vents are covered with a waterproof and breathable membrane, which can effectively prevent external moisture from entering the housing while ensuring good air permeability of the electronic controller, thereby ensuring the dustproof and waterproof performance of the electronic controller. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of an embodiment of this application; Figure 2 This is an exploded view of an embodiment of the present application, used to illustrate the internal structure of the electronic controller; Figure 3This is a partial schematic diagram of the upper housing in an embodiment of this application, used to show the pin placement positions; Figure 4 This is a partial exploded view of an embodiment of this application, used to show that the PCBA is fixed to the upper housing by a threaded connection; Figure 5 This is a cross-sectional view of the upper shell in an embodiment of this application; Figure 6 for Figure 5 The enlarged diagram at point A in the middle is used to show the location of the airflow channel.

[0025] Reference numerals: 1. Housing; 2. Upper housing; 3. Lower housing; 4. Connector; 5. Mounting part; 6. PCBA; 7. Pin; 8. Sealing groove; 9. Sealing protrusion; 10. Slot; 11. Snap-on; 12. Through hole; 13. Connecting part; 14. Threaded hole; 15. Self-tapping screw; 16. Support bar; 17. Boss; 18. Vent; 19. Waterproof and breathable membrane; 20. Blocking part; 21. Airflow channel; 22. Thermally conductive protrusion; 23. Heat dissipation protrusion; 24. Reinforcing rib. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0027] Example: A dustproof and waterproof automotive electronic controller, reference Figure 1 and Figure 2 The system includes a housing 1, which is divided into an upper housing 2 and a lower housing 3. The upper housing 2 and the lower housing 3 are elastically fitted and sealed, giving the electronic controller dustproof and waterproof performance. The upper housing 2 includes an integrally formed connector 4 and a mounting part 5. The connector 4 is located outside the housing 1, and the mounting part 5 is located inside the housing 1. Figure 3 PCBA6 is installed inside the housing 1, and pins 7 are fixedly connected to PCBA6. One end of pin 7 is located in the connector 4, and the other end is fixedly installed on the mounting part 5. The signal on PCBA6 is transmitted to the external device outside the electronic controller through pin 7.

[0028] refer to Figure 3 and Figure 4 The lower housing 3 has an annular sealing groove 8 at its end face. The sealing groove 8 is coated with elastic sealant. In this embodiment, the elastic sealant is a silicone sealant, which has excellent elasticity and sealing performance. The upper housing 2 has an integrally formed sealing protrusion 9 at its end face. The sealing protrusion 9 is the same size and shape as the sealing groove 8 and is matched in position. The upper housing 2 has a recessed groove 10, and the lower housing 3 has a protruding buckle 11. The buckle 11 engages with the groove 10 to fix the upper housing 2 and the lower housing 3, and also facilitates the disassembly and installation of the electronic controller.

[0029] refer to Figure 3 and Figure 4 The PCBA6 has a through hole 12. In this embodiment, the upper shell 2 is made of plastic and has an integrally formed connecting part 13. The connecting part 13 protrudes from the inner side of the upper shell 2. The connecting part 13 has a first locking hole that is opposite to the position of the second locking hole. A locking component is detachably connected to the PCBA6. In this embodiment, the first locking hole is a threaded hole 14 and the locking component is a self-tapping screw 15. The self-tapping screw 15 passes through the through hole 12 and engages with the threaded hole 14 to securely fix the PCBA6 in the electronic controller. A support strip 16 connected to the upper shell 2 is integrally formed on the periphery of the connecting part 13 to strengthen the structural strength of the connecting part 13.

[0030] refer to Figure 5 and Figure 6 The inner side of the upper housing 2 is integrally formed with a boss 17, and a vent 18 is provided at the boss 17, penetrating the inside and outside of the upper housing 2. The vent 18 transfers heat from the electronic controller to the outside, so that the electronic controller is maintained within a suitable operating temperature range. Figure 1 At the same time, it can balance the pressure inside and outside the shell 1. A waterproof and breathable membrane 19 is fixedly installed on the boss 17 by friction welding. The waterproof and breathable membrane 19 covers the vent 18 to ensure the waterproof effect of the electronic controller. Two blocking parts 20 are formed protruding inside the vent 18. The blocking parts 20 are integrally formed with the upper shell 2. The two blocking parts 20 are set at different heights and are set relative to each other, so that the two blocking parts 20 and the vent 18 form a curved airflow channel 21. The cross-sectional shape of the airflow channel 21 is Z-shaped, which ensures the dustproof effect of the vent 18.

[0031] refer to Figure 1 and Figure 2 When the PCBA6 is working, it generates heat. The lower housing 3 protrudes from the end facing the upper housing 2 and forms multiple heat-conducting protrusions 22. In this embodiment, the lower housing 3 is made of aluminum alloy to ensure that the lower housing 3 has stable structural strength and good heat conduction and heat dissipation effect. The heat-conducting protrusions 22 are integrally formed with the lower housing 3 and are located in the area where the PCBA6 generates more heat. The heat-conducting protrusions 22 accelerate the heat transfer on the PCBA6. Multiple heat dissipation protrusions 23 are integrally formed on the outer side of the lower housing 3. The heat dissipation protrusions 23 increase the heat dissipation area on the outer surface of the lower housing 3, thereby accelerating the heat dissipation speed. In addition, the heat dissipation protrusions 23 can promote air convection and further enhance the heat dissipation effect of the electronic controller.

[0032] refer to Figure 2 and Figure 3The inner side of the upper housing 2 is integrally formed with multiple reinforcing ribs 24 to further enhance the strength of the upper housing 2. The pins 7 are installed on the upper housing 2 by injection molding to ensure that the pins 7 are stably installed on the electronic controller. The pins 7 located inside the housing 1 are fixedly connected to the PCBA6 by wave soldering.

[0033] The implementation principle of this application embodiment is as follows: The upper housing 2 is made of plastic. An interface 4 is integrally injection molded on the outer side of the upper housing 2. An installation part 5 corresponding to the position of the interface 4 is integrally injection molded on the inner side of the upper housing 2. A pin 7 is fixedly installed on the installation part 5. One end of the pin 7 is located inside the interface 4 and connects to an external device. The other end of the pin 7 is located inside the housing 1 and is wave soldered to the PCBA6. A self-tapping screw 15 on the PCBA6 passes through the through hole 12 and engages with the threaded hole 14, thus fixing the PCBA6 to the upper housing 2. The upper shell 2 is integrally formed with a boss 17, and a vent 18 is provided at the boss 17. A Z-shaped airflow channel 21 is provided inside the vent 18, and a waterproof and breathable membrane 19 is covered on the vent 18. The lower shell 3 is made of aluminum alloy. A heat-conducting protrusion 22 is integrally formed on the inner side of the lower shell 3, and a heat-dissipating protrusion 23 is integrally formed on the outer side of the lower shell 3. The sealing protrusion 9 of the upper shell 2 and the sealing groove 8 on the end face of the lower shell 3 achieve elastic fit and seal. The slot 10 of the upper shell 2 and the buckle 11 of the lower shell 3 engage and cooperate to realize the installation of the upper shell 2 and the lower shell 3.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dustproof and waterproof automotive electronic controller, comprising a housing (1) and a PCBA (6) installed within the housing (1), wherein pins (7) fixedly connected to the PCBA (6) are installed within the housing (1), and the housing (1) comprises an upper housing (2) and a lower housing (3), characterized in that: The upper housing (2) includes an integrally formed connector (4) and a mounting part (5). The connector (4) is located outside the housing (1), and the mounting part (5) is located inside the housing (1). One end of the pin (7) is located inside the connector (4), and the other end is fixedly mounted on the mounting part (5). The upper housing (2) and the lower housing (3) are elastically fitted and sealed.

2. The dustproof and waterproof automotive electronic controller according to claim 1, characterized in that: A sealing groove (8) is provided at the end face of the lower housing (3), and a sealing protrusion (9) that matches the sealing groove (8) is fixedly installed at the end face of the upper housing (2).

3. A dustproof and waterproof automotive electronic controller according to claim 2, characterized in that: The sealing groove (8) is coated with elastic sealant.

4. A dustproof and waterproof automotive electronic controller according to claim 3, characterized in that: The upper housing (2) has a recessed groove (10), and the lower housing (3) has a protruding buckle (11) that engages with the groove (10).

5. A dustproof and waterproof automotive electronic controller according to claim 1, characterized in that: The upper shell (2) has an integrally formed boss (17), and the boss (17) has a vent (18) that penetrates the inside and outside of the upper shell (2). A waterproof and breathable membrane (19) covering the vent (18) is fixedly installed on the boss (17).

6. A dustproof and waterproof automotive electronic controller according to claim 5, characterized in that: Two obstructions (20) with different heights protrude from the vent (18), and the two obstructions (20) and the vent (18) form a curved airflow channel (21).

7. A dustproof and waterproof automotive electronic controller according to claim 1, characterized in that: The upper housing (2) is integrally formed with a first locking hole, and the PCBA (6) is detachably connected with a locking component that is threadedly engaged with the first locking hole.

8. A dustproof and waterproof automotive electronic controller according to claim 1, characterized in that: Multiple heat-conducting protrusions (22) are formed inside the lower housing (3), and the heat-conducting protrusions (22) are coated with heat-conducting adhesive.

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