Controller and vehicle

Abstract

The invention relates to the technical field of controllers, in particular to a controller and a vehicle. The controller comprises an upper shell, a lower shell and a circuit board, the lower shell is covered with the upper shell, a containing cavity is defined by the upper shell, and the circuit board is installed in the containing cavity. One of the upper shell and the lower shell is provided with a first sealing groove in the circumferential direction of the containing cavity, and the space between the other one of the upper shell and the lower shell and the first sealing groove is filled with first sealant. The first sealing groove is filled with the first sealant, so that the assembling gap between the upper shell and the lower shell is blocked through the first sealant, the sealing performance between the upper shell and the lower shell is improved, a good electromagnetic shielding effect is achieved under the condition that an electromagnetic shielding cover is not additionally arranged, the structure of the controller is simplified, and the reliability of the controller is improved. The cost of the controller is reduced, and the anti-interference capability of the controller is improved. In addition, sealing assembly of the upper shell and the lower shell is achieved, and the dustproof and waterproof effects of the controller are improved.

Description

Technical Field

[0001] This invention relates to the field of controller technology, and more particularly to a controller and a vehicle. Background Technology

[0002] The controller is the core component of the vehicle's electronic control system. It is responsible for processing the information collected by the sensors and implementing the control functions of the actuators according to the strategy.

[0003] The electronic components inside the controller are highly sensitive to electromagnetic interference (EMI), which can lead to performance degradation or even damage. Therefore, anti-interference measures are often necessary. In related technologies, an electromagnetic shielding cover is typically installed around the controller, with the shielding cover and controller connected by threads. However, this not only increases the structural complexity and cost of the controller, but also inevitably creates assembly gaps between the shielding cover and the controller, compromising the effectiveness of electromagnetic shielding and reducing the controller's anti-interference performance. Summary of the Invention

[0004] The purpose of this invention is to provide a controller and a vehicle that simplify the controller's structure and improve its anti-interference capability.

[0005] To achieve this objective, the technical solution adopted by the present invention is as follows:

[0006] A controller includes an upper housing, a lower housing, and a circuit board, wherein the upper housing covers the lower housing and forms a receiving cavity, and the circuit board is installed inside the receiving cavity;

[0007] One of the upper housing or the lower housing is provided with a first sealing groove along the circumference of the receiving cavity, and the other of the upper housing or the lower housing is filled with a first sealant between itself and the first sealing groove.

[0008] As an optional solution for the controller, the bottom width of the first sealing groove is smaller than the opening width, so that the longitudinal cross-section of the first sealing groove is V-shaped.

[0009] As an optional solution for the controller, the first sealing groove includes a long side section, a short side section, and a rounded corner section. The short side section is provided on both sides of the upper housing along the length direction, and the long side section is provided on both sides of the upper housing along the width direction. One end of the long side section is integrally connected to one end of one of the short side sections through the rounded corner section, and the other end of the long side section is integrally connected to one end of another of the short side sections through the rounded corner section.

[0010] As an optional solution for the controller, the controller further includes a connector. When the upper housing covers the lower housing, one end of the upper housing and one end of the lower housing are spliced ​​together to form a mounting cavity communicating with the receiving cavity. The mounting cavity has a mounting port for the connector to be inserted, and a flange is provided on the inner side of the mounting port. The connector has a second sealing groove, and the connector is inserted into the mounting cavity and electrically connected to the circuit board. The flange is engaged in the second sealing groove.

[0011] As an alternative to the controller, a second sealant is filled between the flange and the second sealing groove.

[0012] As an alternative to the controller, the upper housing is bolted to the circuit board, and the upper housing is electrically connected to the grounding point of the circuit board via the bolt. The grounding point is configured to be electrically connected to the negative terminal of an external battery via the grounding pin of the connector.

[0013] As an optional solution for the controller, the controller also includes a vent valve, and the upper housing has a vent hole, with the vent valve snapped into the vent hole.

[0014] As an alternative to the controller, the outer surface of the upper housing has a horizontal slope, which is inclined downwards along the height direction, and the inlet of the vent is located on the horizontal slope.

[0015] As an optional solution for the controller, the horizontal inclined surface is provided with multiple water baffles, which are spaced apart circumferentially along the vent hole and surround the vent valve to form a water baffle ring.

[0016] A vehicle comprising the aforementioned controller.

[0017] The beneficial effects of this invention are as follows:

[0018] The controller proposed in this invention has a first sealing groove provided along the circumference of the receiving cavity in one of the upper and lower housings, and a first sealant is filled between the other of the upper and lower housings and the first sealing groove. Filling the first sealing groove with the first sealant seals the assembly gap between the upper and lower housings, improving the sealing performance between them. This achieves good electromagnetic shielding without adding an electromagnetic shielding cover, simplifying the controller's structure, reducing its cost, and improving its anti-interference capability. Furthermore, the sealed assembly of the upper and lower housings improves the controller's dustproof and waterproof performance.

[0019] The vehicle proposed in this invention includes the aforementioned controller. A first sealant is filled into the first sealing groove to seal the assembly gap between the upper and lower housings, improving the sealing performance between them. This achieves good electromagnetic shielding without adding an electromagnetic shielding cover, simplifying the controller's structure, reducing its cost, and improving its anti-interference capability. Furthermore, the sealed assembly of the upper and lower housings enhances the controller's dustproof and waterproof performance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the controller provided in an embodiment of the present invention;

[0021] Figure 2 This is a cross-sectional view of the controller provided in an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the upper shell structure provided in an embodiment of the present invention;

[0023] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the lower housing structure provided in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the assembly structure of the circuit board and connector provided in an embodiment of the present invention;

[0026] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle.

[0027] The component names and labels in the diagram are as follows:

[0028] 10. Mounting cavity; 20. Flange;

[0029] 1. Upper shell; 11. First sealing groove; 111. Long side section; 112. Short side section; 113. Rounded corner section; 12. Vent hole; 13. Horizontal inclined surface; 14. Water baffle; 15. Clearance groove; 16. Fin; 17. Mounting hole; 2. Lower shell; 21. Rib; 22. Support column; 3. Circuit board; 4. Connector; 41. Second sealing groove; 5. Vent valve; 6. Vibration damping component. Detailed Implementation

[0030] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0031] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0034] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] The electronic components inside the controller are highly sensitive to electromagnetic interference (EMI), which can lead to performance degradation or even damage. Therefore, anti-interference measures are often necessary. In related technologies, an electromagnetic shielding cover is typically installed around the controller, with the shielding cover and controller connected by threads. However, this not only increases the structural complexity and cost of the controller, but also inevitably creates assembly gaps between the shielding cover and the controller, compromising the effectiveness of electromagnetic shielding and reducing the controller's anti-interference performance.

[0036] To solve the above problems, such as Figures 1-3 As shown, this embodiment proposes a controller, which includes an upper housing 1, a lower housing 2, and a circuit board 3. The upper housing 1 covers the lower housing 2 and forms a receiving cavity, and the circuit board 3 is installed inside the receiving cavity. One of the upper housing 1 or the lower housing 2 has a first sealing groove 11 arranged circumferentially along the receiving cavity, and the other of the upper housing 1 or the lower housing 2 is filled with a first sealant between itself and the first sealing groove 11. Filling the first sealing groove 11 with the first sealant seals the assembly gap between the upper housing 1 and the lower housing 2, improving the sealing performance between them. This achieves good electromagnetic shielding without adding an electromagnetic shielding cover, simplifying the controller's structure, reducing its cost, and improving its anti-interference capability. Furthermore, the sealed assembly of the upper housing 1 and the lower housing 2 improves the controller's dustproof and waterproof performance.

[0037] In this embodiment, as Figure 2 and Figure 3 As shown, the top layer of circuit board 3 is arranged with components such as capacitors and inductors. Corresponding clearance grooves 15 are formed on the inner sidewall of the upper housing 1 to maintain a safe vertical distance between the components of the upper housing 1 and the circuit board 3, ensuring safe assembly of the circuit board 3 within the housing cavity. To improve the vibration resistance of the controller, the areas of circuit board 3 without capacitors and inductors are coated with thermally conductive adhesive and bonded to the upper housing 1. This also improves the thermal conductivity between circuit board 3 and the upper housing 1, allowing heat from circuit board 3 to be quickly dissipated to the outside of the controller through the upper housing 1, thus improving the controller's heat dissipation efficiency. Furthermore, multiple spaced fins 16 are provided on the outer surface of the upper housing 1, increasing the heat dissipation area of ​​the upper housing 1 and further improving the controller's heat dissipation efficiency.

[0038] like Figure 1 and Figure 3As shown, the controller also includes a vent valve 5. The upper housing 1 has a vent hole 12, and the vent valve 5 is snap-fitted into the vent hole 12. In this embodiment, the vent valve 5 has a snap-fit ​​structure, allowing it to be securely installed within the vent hole 12, thus achieving a stable installation of the vent valve 5 on the upper housing 1. The vent valve 5 ensures airflow between the inside and outside of the controller while also providing dustproof and waterproof protection.

[0039] It should be noted that the outer surface of the upper housing 1 has a horizontal slope 13, which is inclined downwards along the height direction, and the inlet of the vent hole 12 is located on the horizontal slope 13. By setting the horizontal slope 13, water or other liquids sprayed or splashed onto the horizontal slope 13 can slide down quickly along the inclined horizontal slope 13, avoiding water or other liquids from accumulating around the vent hole 12 and the vent valve 5.

[0040] like Figure 1 As shown, a plurality of baffle plates 14 are protruding from the horizontal inclined surface 13. These baffle plates 14 are spaced apart circumferentially along the vent hole 12 and surround the vent valve 5 to form a baffle ring. By providing multiple baffle plates 14, water or other liquids are blocked, preventing splashing or spraying onto the vent valve 5. In this embodiment, the upper housing 1 is provided with four annular baffle plates 14, forming a baffle ring to achieve a water-blocking effect along the circumference of the vent valve 5. Because there are gaps between adjacent baffle plates 14, water or other liquids can quickly flow out of the baffle ring through the gaps, further preventing water or other liquids from accumulating inside the baffle ring. In other embodiments, the number of baffle plates 14 can also be different, and no specific limitation is made here.

[0041] In this embodiment, the controller needs to be placed in the vehicle's engine block, chassis, or other locations, where vibration level requirements are quite stringent. Figure 1 and Figure 3 As shown, the controller also includes a vibration damping component 6. Two supports are integrally provided on both sides of the upper housing 1 in the width direction. Each support has a mounting hole 17 and a vibration damping component 6 is provided in each mounting hole 17 so that the controller can be fixedly installed through the vibration damping component 6 to improve the vibration resistance level of the controller.

[0042] Specifically, the damper 6 includes a sleeve and two damping pads. The sleeve and the corresponding mounting hole 17 of the support lug are interference fit. A damping pad is installed at each end of the sleeve extending from the mounting hole 17. A fastening bolt passes through one damping pad, the sleeve, and the other damping pad in sequence before being threaded into the mounting location (engine block or chassis of the vehicle, etc.). When the controller is installed in place, the bolt head of the fastening bolt abuts against the damping pad above the upper housing 1, and the damping pad below the upper housing 1 is clamped between the upper housing 1 and the mounting location.

[0043] It should be noted that the bottom width of the first sealing groove 11 is smaller than the opening width, so that the longitudinal cross-section of the first sealing groove 11 is V-shaped. By setting the first sealing groove 11 into a V-shaped groove, the top opening of the first sealing groove 11 is wide and the bottom opening is narrow. This not only facilitates the processing and manufacturing of the first sealing groove 11 and reduces the processing difficulty, but also allows the V-shaped groove to better guide the flow of the first sealant, reduce stagnation, ensure uniform distribution of the first sealant, and improve the bonding quality between the upper shell 1 and the lower shell 2. In addition, the V-shaped groove helps to expel air bubbles from the first sealing groove 11, reducing the impact of air bubbles on the bonding strength and enhancing the bonding effect.

[0044] like Figure 4 As shown, the first sealing groove 11 includes a long side segment 111, a short side segment 112, and a rounded corner segment 113. Short side segments 112 are provided on both sides of the upper housing 1 along its length (left-right direction in the figure), and long side segments 111 are provided on both sides of the upper housing 1 along its width (front-back direction in the figure). One end of a long side segment 111 is integrally connected to one end of a short side segment 112 via a rounded corner segment 113, and the other end of a long side segment 111 is integrally connected to one end of another short side segment 112 via a rounded corner segment 113. In this embodiment, the upper housing 1 is approximately quadrilateral, and the first sealing groove 11 is arranged along the four sides of the upper housing 1. Adjacent long side segments 111 and short side segments 112 are connected at the corners of the upper housing 1 via rounded corner segments 113, allowing the first sealant to flow smoothly within the first sealing groove 11 and preventing stagnation or blockage at the corners of the upper housing 1, thus ensuring that the first sealing groove 11 is filled quickly and evenly.

[0045] like Figure 5 As shown, the lower housing 2 is made of stamped aluminum and fits into the bottom layer of the circuit board 3. The bottom layer of the circuit board 3 houses low-profile components such as chips, surface mount resistors, and transistors, and the lower housing 2 maintains a safe vertical distance from the bottom layer components of the circuit board 3. Because the lower housing 2 is relatively thin, a portion of its outer surface is recessed to form ribs 21 and two support pillars 22 on its inner surface, thereby improving the mechanical strength of the lower housing 2 and preventing deformation. It should be noted that the upper housing 1 and the circuit board 3 are assembled together with bolts, and the ends of two bolts can be tightened one-to-one with the two support pillars 22 to provide stable support for the lower housing 2, improving the structural stability of the controller.

[0046] like Figure 2 and Figure 6As shown, the controller also includes a connector 4. When the upper housing 1 covers the lower housing 2, one end of the upper housing 1 and one end of the lower housing 2 are joined to form a mounting cavity 10 communicating with the receiving cavity. The mounting cavity 10 has a mounting port for the connector 4 to be inserted, and a flange 20 is provided on the inner side of the mounting port. The connector 4 has a second sealing groove 41 at its joint. The connector 4 is inserted into the mounting cavity 10 and electrically connected to the circuit board 3. The flange 20 is engaged in the second sealing groove 41. Through the insertion and engagement of the flange 20 and the second sealing groove 41, the sealing performance between the housing and the connector 4 is improved, thereby improving the electromagnetic shielding effect and electromagnetic compatibility of the controller.

[0047] Specifically, such as Figure 7 As shown, the aforementioned first sealing groove 11 includes a first groove and two second grooves. The first groove extends along the length direction and is disposed at the bottom end of the connector 4, while the two second grooves extend along the height direction (vertical direction in the figure) and are disposed on both sides of the connector 4 along the width direction. Figure 3 As shown, two opposing flanges 20 are correspondingly provided on the inner side of the end of the upper housing 1 that forms the mounting cavity 10. The structure of these flanges 20 is adapted to the second groove. When the connector 4 is inserted into the mounting cavity 10, the two flanges 20 inside the upper housing 1 are respectively inserted into the two corresponding second grooves. Figure 5 As shown, a flange 20 is provided on the inner side of the end of the lower housing 2 that forms the mounting cavity 10. The structure of the flange 20 is adapted to the first groove. When the connector 4 is inserted into the mounting cavity 10, the flange 20 in the lower housing 2 is inserted into the corresponding first groove.

[0048] In this embodiment, a second sealant is filled between the flange 20 and the second sealing groove 41. Filling the space between the flange 20 and the second sealing groove 41 with the second sealant seals the assembly gap between them, further improving the sealing performance between the housing and the connector 4, thereby further improving the electromagnetic shielding effect and electromagnetic compatibility of the controller.

[0049] It should be noted that the upper housing 1 is connected to the circuit board 3 by bolts, and the upper housing 1 is electrically connected to the grounding point of the circuit board 3 by bolts. The grounding point is configured to be electrically connected to the negative terminal of the external battery through the grounding pin of the connector 4. Through the above settings, the far ends of both the upper housing 1 and the lower housing 2 are grounded, improving the electromagnetic compatibility of the controller.

[0050] This embodiment also proposes a vehicle that includes the aforementioned controller. A first sealant is filled into the first sealing groove 11 to seal the assembly gap between the upper housing 1 and the lower housing 2, improving the sealing performance between them. This achieves good electromagnetic shielding without adding an electromagnetic shielding cover, simplifying the controller's structure, reducing its cost, and improving its anti-interference performance. Furthermore, the sealed assembly of the upper housing 1 and the lower housing 2 is achieved, improving the controller's dustproof and waterproof performance.

[0051] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A controller, characterized in that, It includes an upper housing (1), a lower housing (2) and a circuit board (3), wherein the upper housing (1) covers the lower housing (2) and forms a receiving cavity, and the circuit board (3) is installed in the receiving cavity; One of the upper housing (1) or the lower housing (2) is provided with a first sealing groove (11) along the circumference of the receiving cavity, and the other of the upper housing (1) or the lower housing (2) is filled with a first sealant between itself and the first sealing groove (11).

2. The controller according to claim 1, characterized in that, The bottom width of the first sealing groove (11) is smaller than the opening width, so that the longitudinal section of the first sealing groove (11) is V-shaped.

3. The controller according to claim 2, characterized in that, The first sealing groove (11) includes a long side section (111), a short side section (112), and a rounded corner section (113). The short side section (112) is provided on both sides of the upper housing (1) along the length direction, and the long side section (111) is provided on both sides of the upper housing (1) along the width direction. One end of the long side section (111) is integrally connected to one end of one of the short side sections (112) through the rounded corner section (113), and the other end of the long side section (111) is integrally connected to one end of another of the short side sections (112) through the rounded corner section (113).

4. The controller according to claim 1, characterized in that, The controller also includes a connector (4). When the upper housing (1) covers the lower housing (2), one end of the upper housing (1) and one end of the lower housing (2) are spliced ​​together to form an installation cavity (10) that communicates with the receiving cavity. The installation cavity (10) has an installation port for the connector (4) to be inserted into, and a flange (20) is provided on the inner side of the installation port. The connector (4) has a second sealing groove (41) on its connector. The connector (4) is inserted into the installation cavity (10) and electrically connected to the circuit board (3). The flange (20) is engaged in the second sealing groove (41).

5. The controller according to claim 4, characterized in that, The flange (20) and the second sealing groove (41) are filled with a second sealant.

6. The controller according to claim 4, characterized in that, The upper housing (1) is connected to the circuit board (3) by bolts, and the upper housing (1) is electrically connected to the grounding point of the circuit board (3) by the bolts. The grounding point is configured to be electrically connected to the negative terminal of an external battery through the grounding pin of the connector (4).

7. The controller according to any one of claims 1 to 5, characterized in that, The controller also includes a vent valve (5), and the upper housing (1) has a vent hole (12), and the vent valve (5) is snapped into the vent hole (12).

8. The controller according to claim 7, characterized in that, The outer surface of the upper shell (1) has a horizontal inclined surface (13), which is inclined downward along the height direction, and the inlet of the vent (12) is located on the horizontal inclined surface (13).

9. The controller according to claim 8, characterized in that, The horizontal inclined surface (13) is provided with a plurality of water baffles (14), and the plurality of water baffles (14) are arranged at intervals along the circumference of the vent hole (12) and surround the circumference of the vent valve (5) to form a water baffle ring.

10. A vehicle, characterized in that, The controller includes any one of claims 1 to 9.

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