An ECU controller with anti-vibration and anti-loosening

Abstract

The utility model discloses a kind of ECU controller of connector anti-vibration anti-loosening, belong to automobile electronic connection technical field, including shell, bottom plate, circuit board and connector, connector includes connector shell and pin. Circuit board is equipped with clamping hole, connector shell is equipped with the clamping column matched with clamping hole;The opening of shell is equipped with limiting slot, the edge of the connector end of connector shell is equipped with limiting plate, limiting plate is embedded in limiting slot;Limiting slot has outer side plate and inner side plate, outer side plate is equipped with aperture, inner side plate is equipped with limiting column, limiting plate is equipped with limiting hole, limiting member is connected after passing through aperture and limiting hole with limiting column. By clamping column, limiting plate and limiting member form multiple fixed cooperation, make connector keep stable installation state when being subjected to vehicle vibration and external plug-in effect, reduce the situation that connector displacement occurs relative to circuit board and influence electrical connection reliability.

Description

Technical Field

[0001] This utility model belongs to the field of automotive controller technology, specifically relating to an ECU controller with a connector that is vibration-resistant and prevents loosening. Background Technology

[0002] Connectors, also known as plugs, are electronic components used to connect circuits or electrical equipment and enable the transmission of current or signals. They are widely used in automotive electronic control units (ECUs), communication equipment, and home appliances. Automotive ECUs typically include a housing, a base plate, and a circuit board positioned between the housing and the base plate. One side of the housing has an opening for mounting connectors. One end of a pin inside the connector is electrically connected to the circuit board, and the other end is used to connect to an external wiring harness plug. Existing connectors typically form an electrical connection to the circuit board through pin soldering or terminal connections, and maintain their mounting position through a snap-fit ​​structure between the connector and the circuit board.

[0003] However, the continuous vibrations generated during vehicle operation, as well as the effects of external plug insertion / removal and wiring harness pulling, subject connectors to repeated forces over long periods. During prolonged use, connectors are prone to slight displacement relative to their mounting position, continuously affecting their fixing structure and potentially leading to decreased stability of the pin-to-circuit board connection, thus impacting normal signal and current transmission. Therefore, there is an urgent need to improve existing technology to address the issues of connector displacement and loosening under vibration and long-term use, which affect the reliability of electrical connections. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an ECU controller with vibration-resistant and anti-loosening connectors to solve the technical problem that connectors are prone to positional changes during vehicle vibration and long-term use, thereby affecting the reliability of electrical connections.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: An ECU controller with vibration-resistant and anti-loosening connector includes a housing, a base plate, a circuit board, and a connector. The base plate is fixedly connected to the housing and forms an installation space with the housing. The circuit board is fixedly installed in the installation space. The connector includes a connector housing and pins disposed in the connector housing. One end of the pins is electrically connected to the circuit board. An opening is provided on one side of the housing, and the connector housing is installed at the opening. A snap-fit ​​hole is provided on the circuit board. A snap-fit ​​post is provided on the side of the connector housing near the circuit board, and the snap-fit ​​post snaps into the snap-fit ​​hole. A limiting groove is provided at the opening of the housing. A connector end is formed on the side of the connector housing away from the circuit board. A limiting plate is provided on the edge of the connector end, and the limiting plate is embedded in the limiting groove.

[0006] Furthermore, the limiting groove extends along the insertion direction of the connector, and the surface of the limiting plate is perpendicular to the insertion direction of the connector. After the limiting plate is embedded in the limiting groove, it restricts the movement of the connector along its insertion direction.

[0007] Furthermore, the limiting groove is a U-shaped groove, and the limiting groove has an outer side plate and an inner side plate, the distance between the outer side plate and the inner side plate being adapted to the thickness of the limiting plate.

[0008] Furthermore, the outer side plate has an opening, the inner side plate has a limiting post, the limiting plate has a limiting hole, and the ECU controller with anti-vibration and anti-loosening connector also includes a limiting component. The limiting component passes through the opening and the limiting hole in sequence and locks with the limiting post.

[0009] Furthermore, the limiting post is provided with an internal threaded hole, and the limiting element is a screw. The screw passes through the opening and the limiting hole and is threadedly connected to the internal threaded hole.

[0010] Furthermore, a limiting groove is provided on the left and right sides of the opening of the outer shell, and two limiting plates are provided on the connecting shell, with the two limiting plates respectively embedded in the two limiting grooves.

[0011] Furthermore, the snap-fit ​​post is an elastic snap-fit. The snap-fit ​​post is located at the bottom of the connector housing and extends downward. The end of the snap-fit ​​post has a snap-fit ​​part. After the snap-fit ​​post is snapped into the snap-fit ​​hole, the snap-fit ​​part restricts the movement of the connector along the direction perpendicular to the insertion direction.

[0012] Furthermore, the outer shell is provided with a connecting post, and the edge of the base plate is provided with a connecting hole. The base plate and the outer shell are fixedly connected by a connector that passes through the connecting hole and is inserted into the connecting post.

[0013] Furthermore, the connector is a screw, and the connecting post has an internal threaded hole. The screw passes through the connecting hole and is threadedly connected to the connecting post.

[0014] The ECU controller with vibration-resistant and anti-loosening connector disclosed in this utility model is based on the cooperation of the snap-fit ​​post and snap-fit ​​hole, the fitting of the limiting plate and the limiting groove, and the connection of the limiting component and the limiting post, so that the connector and the circuit board and the housing are fixed at multiple points, thereby improving the positional stability of the connector in the vibration environment. Compared to existing technologies, the snap-fit ​​pin, once inserted into the snap-fit ​​hole on the circuit board, maintains the connector's position relative to the circuit board, reducing connector displacement along the circuit board direction when subjected to vibration. After the limiting plate is embedded in the limiting groove at the opening of the housing, when the connector is subjected to push-pull actions from external plug insertion / removal or wire harness pulling, the limiting plate and limiting groove form a stop, restricting the connector housing from moving along the insertion direction. This allows some of the external force acting on the connector to be transmitted to the housing through the limiting plate, reducing repeated pulling of the connector on the pin-to-circuit board connection point. Furthermore, the limiting member passes sequentially through the opening on the outer plate and the limiting hole on the limiting plate, connecting to the limiting pin on the inner plate, further retaining the limiting plate within the limiting groove and reducing the possibility of it dislodging during vibration or long-term use. Through this structural cooperation, the connector is simultaneously constrained by the circuit board and the housing, reducing the possibility of repeated connector movement caused by vehicle vibration and external insertion / removal actions, thereby reducing the decrease in terminal connection stability due to connector position changes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the ECU controller with vibration-resistant and anti-loosening connector of this utility model.

[0016] Figure 2 This is an exploded structural diagram of the ECU controller with vibration-resistant and anti-loosening connector of this utility model.

[0017] Figure 3 This is a partially enlarged structural diagram showing the connection position between the connector and the housing and circuit board of this utility model.

[0018] Figure 4 This is a partially enlarged schematic diagram of the limiting structure at the opening of the outer shell of this utility model.

[0019] Figure 5 This is a structural schematic diagram of the connector of this utility model.

[0020] The markings in the attached diagram are as follows: 1. Outer shell; 11. Limiting groove; 111. Outer side plate; 112. Inner side plate; 113. Opening; 114. Limiting post; 12. Connecting post; 2. Base plate; 21. Connecting hole; 3. Circuit board; 31. Snap-fit ​​hole; 4. Connector; 41. Connecting shell; 411. Snap-fit ​​post; 412. Limiting plate; 413. Limiting hole; 42. Pin; 5. Limiting component; 6. Connecting component. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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 this utility model.

[0023] Existing connectors are prone to loosening during long-term use due to vehicle vibration and plugging / unplugging operations, affecting the reliability of electrical connections. Therefore, if... Figures 1 to 5 As shown, this embodiment provides an ECU controller with vibration-resistant and anti-loosening connectors, including a housing 1, a base plate 2, a circuit board 3, and connectors 4. The base plate 2 is fixedly connected to the housing 1, and the base plate 2 and the housing 1 enclose an installation space. The circuit board 3 is disposed within the installation space and fixedly mounted on the base plate 2. An opening is formed on one side of the housing 1, and the connectors 4 are correspondingly installed at the opening, with one part of the connectors 4 facing the installation space and the other part able to connect to a plug on the outside of the controller.

[0024] The connector 4 includes a connector housing 41 and a plurality of pins 42 installed within the connector housing 41. One end of the pin 42 facing the mounting space is electrically connected to the circuit board 3, and the other end is located within the insertion area of ​​the connector housing 41, for forming an electrical connection with the corresponding terminal of an external plug. The connection between the pin 42 and the circuit board 3 can be achieved by soldering or by a terminal connection structure suitable for circuit board connections, and the specific connection method can be selected according to the structure of the connector 4 and the circuit board 3.

[0025] like Figure 2 , Figure 3 and Figure 5As shown, the circuit board 3 has a snap-fit ​​hole 31, and the connector housing 41 has a snap-fit ​​post 411 corresponding to the snap-fit ​​hole 31 on the side near the circuit board 3. When the connector 4 is assembled with the circuit board 3, the snap-fit ​​post 411 enters the snap-fit ​​hole 31, thereby first determining the position of the connector housing 41 relative to the circuit board 3, and then making electrical connection between the pin 42 and the circuit board 3. The cooperation between the snap-fit ​​post 411 and the snap-fit ​​hole 31 can limit the connector housing 41 from significant displacement along the surface of the circuit board 3, keeping the pin 42 in the connection position corresponding to the circuit board 3.

[0026] like Figure 1 , Figure 3 and Figure 4 As shown, the opening of the outer casing 1 is provided with a limiting groove 11, and the side of the connector housing 41 away from the circuit board 3 forms a connector end, with a limiting plate 412 provided on the edge of the connector end. When the outer casing 1 is installed in place, the limiting plate 412 is embedded in the limiting groove 11, and the outer casing 1 directly and the connector housing 41 are further limited. Therefore, the connector 4 not only forms a positional engagement with the circuit board 3 through the snap-fit ​​post 411, but also forms a positional engagement with the outer casing 1 through the limiting plate 412.

[0027] With the above structure, when the external plug is inserted into or removed from the connector 4, the connector housing 41 will be subjected to a pushing or pulling force along the insertion direction. Since the limiting plate 412 is embedded in the limiting groove 11, the connector housing 41 is constrained by the limiting groove 11 when moving in this direction, allowing some of the external force acting on the connector 4 to be transmitted to the outer shell 1 through the limiting plate 412, reducing the possibility of the connector 4 continuously pulling on the locking pin 411 and the connection position of the pin 42 to the circuit board 3. The locking pin 411 and the locking hole 31 maintain the basic installation position of the connector 4 relative to the circuit board 3. The cooperation of the two limiting structures can reduce the movement or shaking of the connector 4 during long-term use. During vehicle operation, the outer shell 1, the circuit board 3, and the connector 4 will be continuously subjected to vibrations in different directions. If the connector 4 is only maintained in position through the connection between the pin 42 and the circuit board 3 and the partial locking structure, the small displacements generated by the connector housing 41 during long-term vibration can easily act repeatedly on the connection between the pin 42 and the circuit board 3. In this embodiment, the snap-fit ​​pin 411 and snap-fit ​​hole 31 first restrict the position of the connector 4 relative to the circuit board 3, and the limiting plate 412 and the limiting groove 11 form a mechanical limit between the connector 4 and the housing 1. Therefore, the displacement trend of the connector 4 during vibration can be constrained by the circuit board 3 and the housing 1 at the same time, thereby reducing the repeated movement of the connector housing 41 relative to the circuit board 3 and reducing the possibility that the connection position of the pin 42 will be continuously pulled due to the shaking of the connector 4.

[0028] Furthermore, such as Figure 3 and Figure 4As shown, the limiting groove 11 extends in a direction perpendicular to the insertion direction of the connector 4, and the surface of the limiting plate 412 is perpendicular to the insertion direction of the connector 4. After the limiting plate 412 is embedded in the limiting groove 11, its movement in the insertion direction is blocked by the groove wall of the limiting groove 11. Therefore, when the external plug is repeatedly inserted into or removed from the connector 4, the pushing and pulling forces on the connector housing 41 will not be transmitted to the circuit board 3 solely through the pin 42 and the locking post 411, but can be shared by the blocking relationship between the limiting plate 412 and the limiting groove 11. For vibrations generated along the insertion direction of the connector 4 during vehicle operation, the limiting plate 412 can also be constrained by the groove wall of the limiting groove 11, reducing the repeated movement of the connector 4 in this direction.

[0029] The limiting groove 11 is specifically a U-shaped groove, including an outer side plate 111 and an inner side plate 112 arranged opposite to each other, with a limiting plate 412 located between the outer side plate 111 and the inner side plate 112. The distance between the outer side plate 111 and the inner side plate 112 is adapted to the thickness of the limiting plate 412, allowing the limiting plate 412 to be embedded between them, while avoiding excessive movement space after assembly. Here, "adapted" allows for the retention of normal assembly clearance according to manufacturing and assembly needs, and does not require that the actual distance between the outer side plate 111 and the inner side plate 112 be exactly the same as the actual thickness of the limiting plate 412.

[0030] The outer side plate 111 and the inner side plate 112 constrain the limiting plate 412 from both sides. When the connector 4 is subjected to an insertion force, the limiting plate 412 can engage with one of the side plates; when the connector 4 is subjected to a pull-out force, the limiting plate 412 can engage with the other side plate. Therefore, the limiting groove 11 can respectively restrict the connector 4 along two opposite insertion directions.

[0031] Since the outer side plate 111 and the inner side plate 112 are located on both sides of the limiting plate 412 along the insertion direction, when the connector 4 tends to move back and forth during vibration, the limiting plate 412 can contact the outer side plate 111 or the inner side plate 112 respectively according to the direction of movement, thereby limiting the displacement of the connector housing 41 in two opposite directions. For the repeated pushing and pulling action caused by the repeated insertion and removal of the external plug, this structure can also continuously constrain the position of the connector housing 41, reducing the situation where the connector 4 gradually becomes axially loose due to long-term repeated use.

[0032] like Figure 3 and Figure 4As shown, based on the U-shaped limiting structure, the outer side plate 111 is also provided with an opening 113, the inner side plate 112 is provided with a limiting post 114, and the limiting plate 412 is provided with a limiting hole 413. After the connector 4 is installed in place, the opening 113, the limiting hole 413, and the limiting post 114 are in corresponding positions. The limiting member 5 is inserted from one side of the outer side plate 111, passes through the opening 113 and the limiting hole 413 in sequence, and locks into the limiting post 114.

[0033] The limiting member 5 further mechanically locks the limiting plate 412 after it is inserted into the limiting groove 11. When the connector 4 is subjected to vibration or external wiring harness and tends to exit from the limiting groove 11, the limiting member 5 can prevent the limiting plate 412 from detaching from the housing 1. Thus, the limiting groove 11 mainly constrains the insertion direction of the connector 4, while the limiting member 5 further maintains the assembled state between the limiting plate 412 and the limiting groove 11.

[0034] In this embodiment, the limiting post 114 is provided with an internal threaded hole, and the limiting member 5 is a screw. During assembly, the screw passes through the opening 113 on the outer side plate 111, then through the limiting hole 413 on the limiting plate 412, and is screwed into the internal threaded hole of the limiting post 114. With this connection method, the screw can be installed and removed from the outside of the housing 1 without having to operate from inside the mounting space where the circuit board 3 is located. When it is necessary to disassemble the connector 4 or open the housing 1, the locking between the limiting plate 412 and the limiting groove 11 can be released by unscrewing the corresponding screw.

[0035] As another implementation form that can achieve the above connection relationship, the limiting member 5 can also be a pin or other mechanical fastener that can pass through the opening 113 and the limiting hole 413 and form a detachable fixed part with the limiting post 114. In this case, the matching structure between the limiting post 114 and the limiting member 5 can be adjusted accordingly.

[0036] like Figure 1 and Figure 4 As shown, a limiting groove 11 is provided on each of the left and right sides of the opening of the outer shell 1, and two limiting plates 412 are provided on the connector housing 41 accordingly. Each limiting plate 412 is embedded in the corresponding limiting groove 11. The two limiting positions are distributed on both sides of the connector housing 41, so that both ends of the connector 4 are constrained by the outer shell 1. When the external wire harness applies a biased force to the connector 4, the limiting structures on both sides can jointly restrict the connector housing 41 from tilting or rotating, and prevent the force from being concentrated on one side of the connection position. For a wider connector 4 with multiple pins 42, limiting on both sides also helps to maintain the positional relationship between the entire connector housing 41 and the circuit board 3.

[0037] like Figure 3 and Figure 5As shown, the snap-fit ​​post 411 in this embodiment is an elastic snap-fit. The snap-fit ​​post 411 is located at the bottom of the connector housing 41 and extends towards the circuit board 3, with a snap-fit ​​portion at its end. The snap-fit ​​post 411 can elastically deform as it enters the snap-fit ​​hole 31, and returns to its original shape after the snap-fit ​​portion passes through the snap-fit ​​hole 31, thus creating a blocking relationship between the snap-fit ​​portion and the circuit board 3. Therefore, in addition to limiting the position of the connector housing 41 on the surface of the circuit board 3, the snap-fit ​​post 411 can also prevent the connector housing 41 from detaching in a direction away from the circuit board 3.

[0038] During actual assembly, the snap-fit ​​pin 411 can be first inserted into the corresponding snap-fit ​​hole 31 to initially position the connector 4 relative to the circuit board 3, and then the pin 42 can be soldered to the circuit board 3 or other forms of electrical connection can be made. By performing mechanical positioning first, the impact of connector 4 installation position deviation on the pin 42 connection process can be reduced. After installation, the snap-fit ​​pin 411 and the limiting structure on the housing 1 constrain the connector housing 41 from different positions, so that the pin 42 is mainly used for electrical connection, and does not need to separately bear the function of maintaining the installation position of the connector 4.

[0039] like Figure 2 As shown, the outer casing 1 is also provided with connecting posts 12, and the edge of the base plate 2 is provided with connecting holes 21. The connector 6 passes through the connecting holes 21 and is inserted into the connecting posts 12, thereby fixing the base plate 2 to the outer casing 1. Multiple connecting posts 12 and connecting holes 21 can be arranged at intervals along the edges of the outer casing 1 and the base plate 2, so that the base plate 2 can maintain a stable assembly position after being fixed to the outer casing 1.

[0040] In this embodiment, the connector 6 is a screw, and the connecting post 12 has an internal threaded hole corresponding to the screw. During installation, the connecting hole 21 on the base plate 2 is aligned with the connecting post 12, and the screw passes through the connecting hole 21 from the outside of the base plate 2 and is screwed into the connecting post 12 to fix the base plate 2 to the outer casing 1. When it is necessary to inspect or maintain the circuit board 3 in the installation space, the screw can be removed to separate the outer casing 1 and the base plate 2. Therefore, this connection structure can maintain the positional relationship of the casing during normal use while retaining the conditions for disassembly and assembly.

[0041] During overall assembly, connector 4 is first installed onto circuit board 3, so that snap-fit ​​pin 411 snaps into snap-fit ​​hole 31, and electrical connection between pin 42 and circuit board 3 is completed. Then, circuit board 3 is fixedly installed onto base plate 2. Subsequently, housing 1 is placed on base plate 2, so that connector housing 41 is located at the opening of housing 1, and the limiting plates 412 on both sides are respectively inserted into the corresponding limiting grooves 11. For structures with limiting member 5, the limiting member 5 is then passed through opening 113 and limiting hole 413 from the outside and connected to limiting pin 114. Finally, housing 1 is fixed to base plate 2 by connector 6.

[0042] During use, the external plug and connector 4 may undergo multiple insertion and removal operations. When the plug is inserted, the force causes the connector housing 41 to tend to move towards the installation space; when it is removed, it tends to move outwards. Since the limiting plate 412 is located within the limiting groove 11, the outer plate 111 and the inner plate 112 can respectively restrict movement in these two directions; the limiting member 5 further keeps the limiting plate 412 within the limiting groove 11. Therefore, the pushing and pulling forces generated by repeated insertion and removal are less likely to be continuously concentrated at the connection point between the pin 42 and the circuit board 3, reducing the possibility of the connector 4 gradually loosening during long-term insertion and removal.

[0043] After the ECU controller is assembled, the locking pin 411 and locking hole 31 maintain the position of connector 4 relative to circuit board 3, and the limiting plate 412 and limiting groove 11 maintain the position of connector 4 relative to housing 1. The limiting member 5 further restricts the limiting plate 412 from disengaging from the limiting groove 11. When the vehicle vibrates during operation, the movement tendency of connector 4 in different directions is restricted by the above-mentioned structures. When the external plug is repeatedly installed and removed or the wiring harness is pulled, the pushing and pulling action generated by the connector housing 41 along the insertion direction can be partially transmitted to housing 1. By forming multiple constraints on connector 4 through circuit board 3 and housing 1, the movement, displacement or loosening of connector 4 under long-term vibration and repeated insertion and removal conditions can be reduced, and the repeated pulling of the connection position between pin 42 and circuit board 3 can be reduced accordingly, thereby maintaining the installation state and electrical connection stability of connector 4.

[0044] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An ECU controller with vibration-resistant and anti-loosening connector, comprising a housing (1), a base plate (2), a circuit board (3), and a connector (4), wherein the base plate (2) is fixedly connected to the housing (1) and forms an installation space with the housing (1), the circuit board (3) is fixedly installed in the installation space, the connector (4) comprises a connector housing (41) and a pin (42) disposed in the connector housing (41), one end of the pin (42) is electrically connected to the circuit board (3), and an opening is provided on one side of the housing (1), the connector housing (41) is installed at the opening, characterized in that: The circuit board (3) is provided with a snap-fit ​​hole (31), and the plug-in housing (41) is provided with a snap-fit ​​post (411) on the side close to the circuit board (3), and the snap-fit ​​post (411) is snapped into the snap-fit ​​hole (31); the opening of the outer shell (1) is provided with a limiting groove (11), and the side of the plug-in housing (41) away from the circuit board (3) forms a plug-in end, and the edge of the plug-in end is provided with a limiting plate (412), and the limiting plate (412) is embedded in the limiting groove (11).

2. The ECU controller with vibration-resistant and anti-loosening connector according to claim 1, characterized in that: The limiting groove (11) extends along the insertion direction perpendicular to the connector (4), and the plate surface of the limiting plate (412) is perpendicular to the insertion direction of the connector (4). After the limiting plate (412) is embedded in the limiting groove (11), it restricts the movement of the connector (4) along its insertion direction.

3. The ECU controller with vibration-resistant and anti-loosening connector according to claim 2, characterized in that: The limiting groove (11) is a U-shaped groove. The limiting groove (11) has an outer side plate (111) and an inner side plate (112). The distance between the outer side plate (111) and the inner side plate (112) is adapted to the thickness of the limiting plate (412).

4. The ECU controller with vibration-resistant and anti-loosening connector according to claim 3, characterized in that: The outer side plate (111) is provided with an opening (113), the inner side plate (112) is provided with a limiting post (114), the limiting plate (412) is provided with a limiting hole (413), and the ECU controller for vibration-resistant and anti-loosening connector also includes a limiting member (5). The limiting member (5) passes through the opening (113) and the limiting hole (413) in sequence and locks with the limiting post (114).

5. The ECU controller with vibration-resistant and anti-loosening connector according to claim 4, characterized in that: The limiting post (114) is provided with an internal threaded hole, and the limiting member (5) is a screw. The screw passes through the opening (113) and the limiting hole (413) and is threadedly connected to the internal threaded hole.

6. The ECU controller with vibration-resistant and anti-loosening connector according to any one of claims 1 to 5, characterized in that: The outer shell (1) has a limiting groove (11) on the left and right sides of the opening, and the connector housing (41) has two limiting plates (412), which are respectively embedded in the two limiting grooves (11).

7. The ECU controller with vibration-resistant and anti-loosening connector according to claim 1, characterized in that: The snap-fit ​​post (411) is an elastic snap-fit. The snap-fit ​​post (411) is located at the bottom of the connector housing (41) and extends downward. The end of the snap-fit ​​post (411) has a snap-fit ​​part. After the snap-fit ​​post (411) is snapped into the snap-fit ​​hole (31), the snap-fit ​​part restricts the movement of the connector (4) in a direction perpendicular to the insertion direction.

8. The ECU controller with vibration-resistant and anti-loosening connector according to claim 1, characterized in that: The outer shell (1) is provided with a connecting post (12), and the edge of the bottom plate (2) is provided with a connecting hole (21). The bottom plate (2) and the outer shell (1) are fixedly connected by a connector (6) passing through the connecting hole (21) and then inserted into the connecting post (12).

9. The ECU controller with vibration-resistant and anti-loosening connector according to claim 8, characterized in that: The connector (6) is a screw, and the connecting post (12) has an internal threaded hole. The screw passes through the connecting hole (21) and is threadedly connected to the connecting post (12).

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