ECU controller housing with plug-in

Abstract

An ECU controller shell with a plug-in part, comprising a base, a mounting groove is arranged in the base, a circuit board is mounted in the mounting groove, a sealing convex ring is arranged on the base and surrounds the circuit board, a cover plate is arranged on the base and is used for sealing connection with the sealing convex ring, an auxiliary sealing assembly is arranged in the base, the auxiliary sealing assembly comprises an auxiliary sealing ring, one end of the auxiliary sealing ring is arranged between the sealing convex ring and the cover plate, and the other end of the auxiliary sealing ring extends to the outer edge of the cover plate and abuts against the outer edge to form a sealing connection.

Description

Technical Field

[0001] This utility model relates to an ECU controller housing with a connector, belonging to the field of automotive components. Background Technology

[0002] With the rapid development of automotive electronics technology, higher demands are being placed on the functionality and reliability of electronic control units (ECUs) in automotive control systems. ECUs typically require the installation of circuit boards to control the vehicle's powertrain, chassis, and body electronic systems. Furthermore, in real-world operating environments, the ECU housing must withstand harsh conditions such as high temperature, high humidity, vibration, and dust. Therefore, ensuring the safe and reliable operation of the ECU's internal circuit boards places stringent requirements on the housing's sealing, vibration resistance, and reliable connections to external devices.

[0003] In existing technologies, ECU housings typically employ a structure combining a base and a cover, with protection achieved through a single sealing ring. However, a single sealing ring is susceptible to vibration, temperature changes, and material aging during long-term use, leading to a decline in sealing performance and posing a risk of water and dust ingress, which may cause circuit board damage or electrical performance failure.

[0004] When moisture or dust intrudes into the outer edge of the cover plate, if the sealing path is short or the compression is affected by assembly deviations, the environmental medium can easily diffuse inward along the joint area between the cover plate and the base, thus affecting the protection effect of the circuit board. Therefore, it is urgent to improve the existing technology to solve the problems of a single sealing path at the connection between the cover plate and the base and insufficient protection at the outer edge of the cover plate. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide an ECU controller housing with a connector.

[0006] An ECU controller housing with a connector includes a base, a mounting groove inside the base, a circuit board mounted in the mounting groove, a sealing ring surrounding the circuit board on the base, a cover plate on the base for sealing connection with the sealing ring, and an auxiliary sealing assembly inside the base. The auxiliary sealing assembly includes an auxiliary sealing ring, one end of which is located between the sealing ring and the cover plate, and the other end extends to the outer edge of the cover plate to abut against it to form a sealing connection.

[0007] Furthermore, the auxiliary sealing ring includes a fixing part located between the sealing convex ring and the cover plate, and the fixing part is connected to a connecting part, which is connected to a sealing part that is sealed to the cover plate.

[0008] Furthermore, the cover plate is provided with a sealing groove, and the sealing part extends into the sealing groove to abut against it to form a sealing connection.

[0009] Furthermore, the sealing part is L-shaped, and the sealing groove is smaller on the inside and larger on the outside.

[0010] Furthermore, a pushing part is provided on the outer wall of the sealing ring, and the pushing part abuts against the connecting part.

[0011] Furthermore, there are at least two pushing parts, which are spaced apart and gradually increase in length from top to bottom. The ends of the pushing parts extend to the inner wall of the connecting part and abut against it.

[0012] Furthermore, the base is also connected to a connector with a connection slot for electrical connection between external components and the circuit board.

[0013] This invention offers significant advantages: An auxiliary sealing component is added to the existing sealing fit between the base and the cover plate. One end of the auxiliary sealing ring participates in the compression sealing between the sealing convex ring and the cover plate, while the other end extends to the outer edge of the cover plate and abuts against it to form an outer edge seal. Compared to structures that rely solely on a single compression point between the base and the cover plate for sealing, this invention creates a combination of inner compression sealing and outer edge auxiliary sealing between the cover plate and the base. This extends the path for environmental media to enter the housing and provides relatively stable contact protection at the outer edge of the cover plate. During assembly, the auxiliary sealing ring undergoes elastic deformation as the cover plate is pressed together, maintaining contact with both the cover plate and the sealing convex ring. This reduces the likelihood of seal failure due to assembly gaps, vibration, or insufficient local contact, thus improving the reliability of the circuit board in automotive environments. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0015] Figure 1 This is a schematic diagram of the overall structure of an ECU controller housing with connectors according to this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the present invention with the cover plate removed.

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 4 for Figure 2 A magnified view showing the details at point A in the middle.

[0019] In the figure, 1 is the base; 11 is the mounting groove; 12 is the sealing protrusion ring; 121 is the pushing part; 13 is the connecting slot; 2 is the circuit board; 3 is the cover plate; 31 is the sealing groove; 4 is the auxiliary sealing assembly; 41 is the auxiliary sealing ring; 411 is the fixing part; 412 is the connecting part; and 413 is the sealing part. Detailed Implementation

[0020] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0021] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0022] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0023] This application provides an ECU controller housing with a connector, such as... Figures 1 to 4 As shown: It includes a base 1, a mounting groove 11 inside the base 1, a circuit board 2 installed in the mounting groove 11, a sealing protrusion 12 surrounding the circuit board 2 on the base 1, a cover plate 3 for sealing connection with the sealing protrusion 12 on the base 1, and an auxiliary sealing assembly 4 inside the base 1. The auxiliary sealing assembly 4 includes an auxiliary sealing ring 41, one end of the auxiliary sealing ring 41 is located between the sealing protrusion 12 and the cover plate 3, and the other end extends to the outer edge of the cover plate 3 to abut against it to form a sealing connection.

[0024] The base 1 serves as the support for the circuit board 2, and the mounting groove 11 accommodates and positions the circuit board 2, ensuring a relatively stable mounting position for the circuit board 2 within the base 1. A sealing ring 12 surrounds the circuit board 2, allowing the cover plate 3 to be secured to the base 1, thus providing enclosed protection for the circuit board 2. The auxiliary sealing ring 41 can be made of a sealing material with elastic deformation capabilities, such as rubber, silicone, or other elastic materials suitable for sealing automotive electronic housings. During cover plate 3 assembly, one end of the auxiliary sealing ring 41 is sandwiched between the sealing ring 12 and the cover plate 3, forming a first sealing contact area near the periphery of the circuit board 2; the other end of the auxiliary sealing ring 41 extends to the outer edge of the cover plate 3 and abuts against it, forming a second sealing contact area near the external environment. After the two sealing contact areas are engaged, the external medium needs to pass through the abutment seal at the outer edge of the cover plate 3 and the compression seal at the sealing ring 12 before entering the mounting groove 11, thus extending the sealing path. This structure does not simply increase the number of seals, but rather allows the same auxiliary sealing ring 41 to participate in both inner pressing and outer edge contact. The assembly logic is relatively straightforward, and it can improve the protection status of the edge area of ​​the cover plate 3 without significantly increasing the complexity of the shell structure.

[0025] Alternatively, in some embodiments, such as Figure 4 As shown, the auxiliary sealing ring 41 includes a fixing part 411, which is located between the sealing protrusion ring 12 and the cover plate 3. The fixing part 411 is connected to a connecting part 412, and the connecting part 412 is connected to a sealing part 413 that is sealed to the cover plate 3.

[0026] The fixing part 411 can be configured as an annular pressing section, which is clamped between the sealing protrusion 12 and the cover plate 3 after the cover plate 3 is fastened, thereby providing a basic positioning for the auxiliary sealing ring 41. The connecting part 412 extends from the fixing part 411 toward the outer edge of the cover plate 3, and is used to connect the pressing area of ​​the fixing part 411 with the outer edge abutting area of ​​the sealing part 413 into a whole. The sealing part 413 is located at the end of the auxiliary sealing ring 41 near the outer edge of the cover plate 3, and forms an abutting or embedded seal with the cover plate 3.

[0027] With the above structure, the fixing part 411 mainly undertakes the functions of positioning and inner clamping, the connecting part 412 undertakes the functions of deformation transition and position compensation, and the sealing part 413 undertakes the function of sealing contact at the outer edge of the cover plate 3. During the assembly process, even if there is a slight assembly deviation between the cover plate 3 and the base 1, the connecting part 412 can compensate for the position of the sealing part 413 through elastic deformation, so that the sealing part 413 remains in abutting state, thereby reducing the possibility of gaps forming at the outer edge due to insufficient clamping at a single point.

[0028] Alternatively, in some embodiments, such as Figure 4As shown, the cover plate 3 is provided with a sealing groove 31, and the sealing part 413 extends into the sealing groove 31 and abuts against it to form a sealing connection.

[0029] The sealing groove 31 can be located on the side of the cover plate 3 near the base 1, or on the inner wall near the outer edge of the cover plate 3. Its opening faces the auxiliary sealing ring 41, allowing the sealing part 413 to enter the sealing groove 31 when the cover plate 3 is closed. After the groove wall of the sealing groove 31 contacts the sealing part 413, it can limit the sealing part 413, preventing it from sliding outwards or inwards under pressure. As an alternative embodiment, those skilled in the art can also provide annular steps, stop ribs, or partially recessed structures on the cover plate 3 to form a similar limiting and abutment relationship with the sealing part 413. With the sealing groove 31, the sealing part 413 is not merely abutting against the planar edge of the cover plate 3; the sealing contact surface can be changed from a single planar contact to include the groove bottom and groove wall mating. Thus, when the vehicle vibrates or the edge of the cover plate 3 is disturbed by external forces, the sealing part 413 can still be constrained to the predetermined sealing position by the sealing groove 31, relatively improving the stability of the outer edge seal. Furthermore, when fastening the cover plate 3, the assembler can determine the basic installation position of the auxiliary sealing ring 41 by whether the sealing part 413 enters the sealing groove 31.

[0030] Alternatively, in some embodiments, such as Figure 4 As shown, the sealing part 413 is L-shaped, and the sealing groove 31 is wider at the outer edge than the inner edge. The L-shaped sealing part 413 may include a vertical abutment section and a horizontal abutment section connected to each other. The vertical abutment section can contact the side wall of the sealing groove 31, and the horizontal abutment section can contact the bottom wall or the outer expansion area of ​​the sealing groove 31. The sealing groove 31 is wider at the outer edge than the inner edge, so that the L-shaped sealing part 413 is constrained by the narrow inner part after entering the sealing groove 31, while having a certain deformation margin in the larger outer space.

[0031] As an alternative embodiment, those skilled in the art can also configure the sealing part 413 as an approximately hook-shaped, folded-edge-shaped, or elastic-lip-shaped structure, and configure the sealing groove 31 as a stepped groove or flared groove adapted to it. The above structure allows the sealing part 413 to bend and abut under pressure, requiring the external medium to bypass the turning contact path formed between the L-shaped sealing part 413 and the sealing groove 31 when entering along the outer edge of the cover plate 3. Compared to a straight-fit sealing structure, this mating method increases the resistance to medium flow and makes it less likely for the sealing part 413 to directly detach from the sealing groove 31 under pressure, making it particularly suitable for shell structures where the outer edge of the cover plate 3 needs to simultaneously achieve sealing and positioning.

[0032] Alternatively, in some embodiments, such as Figure 4As shown, a pushing part 121 is provided on the outer wall of the sealing ring 12, and the pushing part 121 abuts against the connecting part 412. The pushing part 121 can be configured as a rib, a protrusion, or a continuous flange structure, which extends from the outer wall of the sealing ring 12 toward the connecting part 412 of the auxiliary sealing ring 41. When the cover plate 3 is fastened and the auxiliary sealing ring 41 is pressed, the pushing part 121 can apply a lateral supporting force to the connecting part 412, causing the connecting part 412 to be moderately offset toward the outer edge of the cover plate 3 or toward the sealing groove 31, thereby causing the sealing part 413 to remain in contact with the cover plate 3.

[0033] As an alternative embodiment, those skilled in the art can also provide a pushing step that cooperates with the connecting part 412 on the inner side wall of the base 1, the outer transition part of the sealing ring 12, or the periphery of the mounting groove 11 to support and guide the connecting part 412. The function of this structure is not solely based on the elasticity of the sealing part 413 to achieve outer edge sealing, but rather on the auxiliary pushing of the connecting part 412 by the pushing part 121, so that the force generated when the fixing part 411 is pressed by the cover plate 3 can be transmitted to the sealing part 413 through the connecting part 412. In this way, the auxiliary sealing ring 41 can form a more stable force path after assembly, and the fit between the sealing part 413 and the cover plate 3 does not completely depend on the manual installation position, which helps to reduce the possibility of the auxiliary sealing ring 41 partially folding, retracting, or deviating from the sealing area.

[0034] Alternatively, in some embodiments, such as Figure 4 As shown, there are at least two pushing parts 121, which are spaced apart and gradually increase in length from top to bottom. The ends of the pushing parts 121 extend to the inner wall of the connecting part 412 and abut against it. Multiple pushing parts 121 can be distributed circumferentially along the sealing ring 12, or they can be locally arranged at locations prone to sealing gaps, depending on the shape of the outer edge of the cover plate 3. The gradual increase in length from top to bottom means that the pushing parts 121 near the cover plate 3 have relatively shorter extension lengths, while those near the inner side of the base 1 have relatively longer extension lengths, giving the pushing force on the connecting part 412 a gradual transition. After the ends of the pushing parts 121 abut against the inner wall of the connecting part 412, the connecting part 412 can be supported in a predetermined direction, maintaining the sealing part 413 near the outer edge of the cover plate 3 or the sealing groove 31.

[0035] As an alternative embodiment, those skilled in the art can also use inclined ribs, stepped bosses, or arc-shaped guide ribs to replace multiple pushing parts 121 of different lengths to form a similar progressive pushing effect. This solution ensures that the connecting part 412 is not suddenly squeezed by a single protrusion, but is supported at multiple intervals, which can reduce the uneven deformation of the auxiliary sealing ring 41 caused by local stress concentration. The gradually increasing pushing part 121 can also guide the connecting part 412 during the assembly of the cover plate 3, making it easier for the sealing part 413 to enter the corresponding sealing area. After assembly, the inner wall of the auxiliary sealing ring 41 remains in contact with the pushing part 121, which helps to maintain the position of the auxiliary sealing ring 41 under vehicle vibration conditions.

[0036] Alternatively, in some embodiments, such as Figure 1 As shown, a connector is also connected to the base 1. The connector has a connection slot 13 for electrical connection between external components and the circuit board 2. The connection slot 13 can be located on one side wall or at the end of the base 1. Conductive terminals, pins, inserts, or terminal blocks can be installed inside it. One end of the conductive terminal connects to the pad, electrical connection hole, or connector on the circuit board 2, and the other end is used to mate with the plug-in terminal of an external wiring harness, sensor, or actuator. The outer periphery of the connection slot 13 can be integrally formed with the base 1, or it can be fixed to the base 1 by embedding.

[0037] By providing the connection slot 13, external components can establish an electrical connection with the circuit board 2 without opening the cover plate 3, avoiding the impact of frequent disassembly of the cover plate 3 on the compression state of the sealing ring 12 and the auxiliary sealing ring 41. After the connection slot 13 mates with the base 1, the electrical connection area of ​​the circuit board 2 can be centrally arranged, making the external connection path clear during assembly and maintenance. The circuit board 2 inside the housing is still enclosed and protected by the cover plate 3, the sealing ring 12, and the auxiliary sealing assembly 4, allowing the electrical connection function and the housing sealing function to work together.

[0038] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

[0039] Although the present invention has been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An ECU controller housing with connectors, characterized in that: The device includes a base with a mounting groove inside, in which a circuit board is mounted. The base has a sealing ring surrounding the circuit board and a cover plate for sealing connection with the sealing ring. An auxiliary sealing assembly is provided inside the base, including an auxiliary sealing ring. One end of the auxiliary sealing ring is located between the sealing ring and the cover plate, and the other end extends to the outer edge of the cover plate to abut against it to form a sealing connection.

2. The ECU controller housing with connector as described in claim 1, characterized in that: The auxiliary sealing ring includes a fixing part located between the sealing convex ring and the cover plate. The fixing part is connected to a connecting part, and the connecting part is connected to a sealing part that is sealed to the cover plate.

3. The ECU controller housing with connector as described in claim 2, characterized in that: The cover plate is provided with a sealing groove, and the sealing part extends into the sealing groove and abuts against it to form a sealing connection.

4. The ECU controller housing with connector as described in claim 3, characterized in that: The sealing part is L-shaped, and the sealing groove is smaller on the inside and larger on the outside.

5. The ECU controller housing with connector as described in claim 2, characterized in that: The outer wall of the sealing ring is provided with a pushing part, which abuts against the connecting part.

6. The ECU controller housing with connector as described in claim 5, characterized in that: There are at least two pushing parts, which are spaced apart and gradually increase in length from top to bottom. The ends of the pushing parts extend to the inner wall of the connecting part and abut against it.

7. The ECU controller housing with connector as described in claim 1, characterized in that: The base is also connected to a connector, which has a connection slot for electrical connection between external components and the circuit board.

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