Automobile electronic control module waterproof structure

Abstract

The utility model relates to a kind of automobile electronic control module waterproof structure, including upper shell, lower shell and circuit board assembly;The upper shell is equipped with recess on the side of the upper shell towards lower shell upper circumference, shell sealing ring is equipped in the recess;The lower shell is equipped with boss on the side of the lower shell towards upper shell upper circumference, the upper shell and the lower shell are connected by shell connecting screw, the boss abuts shell sealing ring;The circuit board assembly includes plug-in and circuit board body;The plug-in bottom end circumference is equipped with plug-in sealing ring, the plug-in sealing ring abuts plug-in hole.Adopt shell sealing ring, the gap between the upper shell and the lower shell is closed, waterproof function is realized, ensure that the upper and lower shell is sealed tightly, effectively block water through the gap between the upper and lower shell and flow into interior;Through plug-in sealing ring, the sealing between plug-in and plug-in hole is realized, effectively avoid water through the gap between plug-in and plug-in hole and flow into inner wall, avoid to cause damage to circuit board body.

Description

Technical Field

[0001] This utility model relates to a waterproof structure, and more particularly to a waterproof structure for an automotive electronic control module. Background Technology

[0002] The design dimensions between the automotive electronic control module and its housing allow for installation clearance, but water can easily seep into the housing through this gap. This is especially problematic in automotive chassis systems where electronic components require high levels of protection and must be completely waterproof. During waterproofing tests, water often enters through this gap, causing short circuits in the internal electronic components. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. To this end, this utility model proposes a waterproof structure for automotive electronic control modules.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a waterproof structure for an automotive electronic control module, including an upper shell, a lower shell, and a circuit board assembly;

[0005] The upper shell has a groove on the upper circumference of the side facing the lower shell, and a shell sealing ring is provided in the groove;

[0006] The lower housing has a boss on the upper circumference of the side facing the upper housing. The upper housing and the lower housing are connected by housing connecting screws. The boss abuts against the housing sealing ring.

[0007] The circuit board assembly includes a plug and a circuit board body; the circuit board body is disposed between an upper housing and a lower housing, the circuit board body is provided with a plug, the plug faces the upper housing, and the top of the plug extends out from the plug hole on the upper housing, and the bottom circumference of the plug is provided with a plug sealing ring, the plug sealing ring abuts against the plug hole;

[0008] The circuit board body and the upper housing are connected by plug-in connecting screws;

[0009] The upper housing is provided with a valve body mounting hole, and a waterproof and breathable valve is provided in the valve body mounting hole. A silicone sealing ring is provided between the waterproof and breathable valve and the valve body mounting hole.

[0010] In a preferred embodiment of the present invention, the upper housing is provided with connecting grooves at the four corners, and the lower housing is provided with connecting holes at the four corners. The connecting holes and connecting grooves are connected by housing connecting screws.

[0011] In a preferred embodiment of this utility model, the plug-in includes a base and a plug-in body. The base is disposed on the circuit board body, the plug-in body is disposed on the base, and the plug-in body has a plug-in groove inside, and a connector is disposed in the plug-in groove.

[0012] The base is provided with a slot for insert connecting sleeve, and the upper housing is provided with a hole for insert connecting sleeve. The slot for connecting sleeve and the hole for insert connecting sleeve are connected by a screw for insert connecting sleeve.

[0013] In a preferred embodiment of the present invention, the plug-in sealing ring includes a main sealing ring and an installation sealing ring. The main sealing ring is sleeved on the bottom end of the plug-in body and is arranged along the circumference of the bottom end of the plug-in body. The two ends of the main sealing ring are respectively provided with installation sealing rings through connecting strips. The installation sealing ring is provided with sealing holes, and the sealing holes are sleeved on the outer ring of the connecting sleeve groove.

[0014] The beneficial effects of this utility model are as follows: This utility model uses a housing sealing ring to close the gap between the upper and lower housings, achieving a waterproof function and ensuring a tight seal between the upper and lower housings, effectively preventing water from flowing into the interior through the gap between the upper and lower housings; the plug-in sealing ring achieves a seal between the plug-in and the plug-in hole, effectively preventing water from flowing into the inner wall through the gap between the plug-in and the plug-in hole, thus avoiding damage to the circuit board body; the waterproof and breathable valve not only ensures internal ventilation and temperature reduction but also achieves a waterproof effect through the silicone sealing ring. The waterproof structure of this application ensures that the electronic control module can still work normally in rainy weather, flooded roads, or high humidity environments, improving the overall reliability of the automotive electronic system and reducing the number of vehicle malfunctions caused by module failures. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the upper shell structure of this utility model. Figure 1 ;

[0017] Figure 3 This is a schematic diagram of the upper shell structure of this utility model. Figure 2 ;

[0018] Figure 4 yes Figure 3 Enlarged structural diagram at point A in the middle;

[0019] Figure 5 This is a schematic diagram of the lower shell structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the circuit board assembly structure;

[0021] Figure 7This is a schematic diagram of the plug-in sealing ring structure of this utility model;

[0022] In the diagram: Upper housing 100; Groove 101; Arc-shaped transition guide edge 1011; Insert hole 102; Connecting groove 103; Connecting hole 104; Valve body mounting hole 105; Lower housing 200; Boss 201; Circuit board assembly 300; Insert 301; Base 3011; Insert body 3012; Insert groove 3013; Connector 3014; Insert connecting sleeve groove 3015; Circuit board body 302; Insert sealing ring 500; Housing sealing ring 400; Insert sealing ring 500; Main sealing ring 501; Mounting sealing ring 502; Connecting strip 503; Sealing hole 504; Housing connecting screw 600; Insert connecting screw 700; Waterproof and breathable valve 800; Silicone sealing ring 900. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] like Figures 1 to 7 The diagram shows a waterproof structure for an automotive electronic control module, comprising an upper housing 100, a lower housing 200, and a circuit board assembly 300.

[0026] The upper housing 100 has a groove 101 on the upper circumference of the side facing the lower housing, and a housing sealing ring 400 is provided in the groove 101;

[0027] The lower housing 200 has a boss 201 on the upper circumference of the side facing the upper housing. The upper housing 100 and the lower housing 200 are connected by housing connecting screws 600. The boss 201 abuts against the housing sealing ring 400. The housing sealing ring 400 in this application is made of silicone material.

[0028] The circuit board assembly 300 includes a plug-in 301 and a circuit board body 302. The circuit board body 302 is disposed between the upper housing 100 and the lower housing 200. The plug-in 301 is provided on the circuit board body 302. The plug-in 301 faces the upper housing 100, and the top end of the plug-in 301 extends out of the plug-in hole 102 on the upper housing 100. The bottom circumference of the plug-in 301 is provided with a plug-in sealing ring 500, which abuts against the plug-in hole 102.

[0029] The circuit board body 302 and the upper housing 100 are connected by plug-in connecting screws 700.

[0030] In use, the waterproof structure of this utility model involves installing the circuit board assembly 300 between the upper housing 100 and the lower housing 200. The upper housing 100 and the lower housing 200 are sealed by a housing density ring 400, closing the gap between them and achieving waterproofing. Then, housing connecting screws 600 are used to tighten the upper housing 100 and the lower housing 200, ensuring a tight seal between the upper and lower housings and effectively preventing water from flowing into the interior through the gap, thus avoiding damage to the circuit board assembly 300. Furthermore, when the plug-in 301 in the circuit board assembly 300 extends from the plug-in hole 102, the plug-in sealing ring 500 fitted at the bottom of the plug-in 301 abuts against the plug-in hole 102, achieving a seal between the plug-in and the plug-in hole 102. This effectively prevents water from flowing into the inner wall through the gap between the plug-in 301 and the plug-in hole 102, thus avoiding damage to the circuit board body 302.

[0031] The upper housing 100 of this application is provided with a valve body mounting hole 105, and a waterproof and breathable valve 800 is provided in the valve body mounting hole 105. A silicone sealing ring 900 is provided between the waterproof and breathable valve 800 and the valve body mounting hole 105. The waterproof and breathable valve 800 is located at the top of the upper housing 100, allowing air to flow and balancing the internal pressure. The circular silicone sealing ring 900 achieves a seal between the waterproof and breathable valve 800 and the valve body mounting hole 105, preventing water from entering the upper and lower housings through the gap between the waterproof and breathable valve 800 and the valve body mounting hole 105, thus avoiding damage to the circuit board assembly 300.

[0032] In a preferred embodiment, the upper housing 100 of this application is provided with connecting grooves 103 at each of its four corners, and the lower housing 200 is provided with connecting holes 202 at each of its four corners. The connecting holes 202 and the connecting grooves 103 are connected by housing connecting screws 600. That is, the four corners of the upper housing 100 and the four corners of the lower housing 200 are respectively connected, which helps to improve the tightness of the connection between the upper housing 100 and the lower housing 200.

[0033] The plug-in 301 in this application is a 39-pin connector; specifically, the plug-in 301 in this application includes a base 3011 and a plug-in body 3012. The base 3011 is disposed on the circuit board body 302, and the plug-in body 3012 is disposed on the base 3011. The plug-in body 3012 has a plug-in groove 3013, and a connector 3014 is disposed in the plug-in groove 3013. The plug-in body 3012 extends out of the plug-in hole 102, which facilitates the connection between various functional connectors and the connector 3014, enabling the use of electronic products.

[0034] The base 3011 is provided with a insert connecting groove 3015, and the upper housing 100 is provided with an insert connecting hole 104. The connecting groove 3015 and the insert connecting hole 104 are connected by insert connecting screws 700. In this application, the base 3011 and the upper housing 100 are connected by insert connecting screws 700, which helps to improve the tightness of the connection between the insert 301 and the upper housing 100 and the structural strength.

[0035] In a preferred embodiment, the plug-in sealing ring 500 of this application includes a main sealing ring 501 and a mounting sealing ring 502. The main sealing ring 501 is sleeved on the bottom end of the plug-in body 3012 and is arranged along the circumference of the bottom end of the plug-in body 3012. The main sealing ring 501 achieves a seal between the plug-in body 3012 and the plug-in hole 102. The two ends of the main sealing ring 501 are respectively provided with mounting sealing rings 502 via connecting strips 503. The mounting sealing ring 502 is provided with a sealing hole 504, which is sleeved on the outer ring of the connecting sleeve groove 3015. The sealing hole 504 achieves a seal between the base 3011 and the plug-in connection hole 104 of the upper housing 100, thereby achieving a waterproof function.

[0036] This invention employs a housing sealing ring to close the gap between the upper and lower housings, achieving a waterproof function and ensuring a tight seal between the upper and lower housings, effectively preventing water from flowing into the interior through the gap. A plug-in sealing ring seals the plug-in holes, effectively preventing water from flowing into the inner wall through the gap between the plug-in holes and avoiding damage to the circuit board body. The waterproof vent valve allows for internal ventilation to reduce temperature while simultaneously providing waterproofing through the silicone sealing ring. This waterproof structure ensures that the electronic control module can still function normally in rainy weather, flooded roads, or high humidity environments, improving the overall reliability of the automotive electronic system and reducing the number of vehicle malfunctions caused by module failures. This waterproof structure guarantees the stable operation of the electronic control module (circuit board assembly), thereby ensuring the normal functioning of related automotive safety systems. For example, if modules such as the Electronic Stability Program (ESP) and Anti-lock Braking System (ABS) malfunction due to water ingress, it will pose a serious threat to driving safety. An effective waterproof design can prevent such situations from occurring, protecting the lives of drivers and passengers.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A waterproof structure for an automotive electronic control module, characterized in that, It includes an upper housing (100), a lower housing (200), and a circuit board assembly (300); The upper housing (100) has a groove (101) on the upper circumference of the side facing the lower housing, and a housing sealing ring (400) is provided in the groove (101); The lower housing (200) has a boss (201) on the upper circumference of the side facing the upper housing. The upper housing (100) and the lower housing (200) are connected by housing connecting screws (600). The boss (201) abuts against the housing sealing ring (400). The circuit board assembly (300) includes a plug-in (301) and a circuit board body (302); the circuit board body (302) is disposed between the upper housing (100) and the lower housing (200), the circuit board body (302) is provided with a plug-in (301), the plug-in (301) faces the upper housing (100), and the top of the plug-in (301) extends out from the plug-in hole (102) on the upper housing (100), and the bottom circumference of the plug-in (301) is provided with a plug-in sealing ring (500), the plug-in sealing ring (500) abuts against the plug-in hole (102); The circuit board body (302) and the upper housing (100) are connected by plug-in connecting screws (700); The upper housing (100) is provided with a valve body mounting hole (105), a waterproof and breathable valve (800) is provided in the valve body mounting hole (105), and a silicone sealing ring (900) is provided between the waterproof and breathable valve (800) and the valve body mounting hole (105).

2. The waterproof structure for the automotive electronic control module according to claim 1, characterized in that, The upper housing (100) is provided with connecting grooves (103) at each of its four corners, and the lower housing (200) is provided with connecting holes (202) at each of its four corners. The connecting holes (202) and the connecting grooves (103) are connected by housing connecting screws (600).

3. The waterproof structure for the automotive electronic control module according to claim 1, characterized in that, The plug-in (301) includes a base (3011) and a plug-in body (3012). The base (3011) is disposed on the circuit board body (302), and the plug-in body (3012) is disposed on the base (3011). The plug-in body (3012) is provided with a plug-in groove (3013), and a connector (3014) is provided in the plug-in groove (3013). The base (3011) is provided with a insert connecting sleeve groove (3015), and the upper housing (100) is provided with an insert connecting hole (104). The connecting sleeve groove (3015) and the insert connecting hole (104) are connected by insert connecting screws (700).

4. The waterproof structure for the automotive electronic control module according to claim 3, characterized in that, The plug-in sealing ring (500) includes a main sealing ring (501) and an installation sealing ring (502). The main sealing ring (501) is fitted onto the bottom end of the plug-in body (3012) and is arranged around the bottom circumference of the plug-in body (3012). The two ends of the main sealing ring (501) are respectively provided with installation sealing rings (502) via connecting strips (503). The installation sealing ring (502) is provided with sealing holes (504), and the sealing holes (504) are fitted onto the outer ring of the connecting sleeve groove (3015).

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