Dustproof cover assembly

Abstract

The dust cover assembly comprises a dust cover body with an inner cavity, a fixing frame fixedly connected with the dust cover body and a conducting strip fixedly connected with the fixing frame. The conducting strip and the fixing frame are integrated through primary injection molding, and the fixing frame and the dustproof cover body are integrated through secondary injection molding. A sleeve is integrally arranged outside the dustproof cover body, the conducting strip is provided with an external electric pin extending into the sleeve, and the conducting strip is provided with an internal electric pin extending into the inner cavity in a protruding mode. At least one internal electric pin is arranged in the plug bush and is provided with two opposite clamping arms, the plug bush and the fixing frame are connected into a whole, a slot is formed between the two clamping arms, contact heads are arranged at opposite positions on the two clamping arms, and elastic supporting structures are arranged on the clamping arms. According to the dustproof cover assembly provided by the utility model, the integrity, the protection performance, the electric connection stability and the durability of the assembly are remarkably improved through the optimized design, and the dustproof cover assembly has good practicability and generalizability.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle accessories, and particularly relates to a dust cover assembly. Background Art

[0002] With the continuous progress of automobile manufacturing technology, the application scope of electronic devices in automobiles is becoming increasingly wide, and the requirements for the protection and stability of electronic devices are also getting higher and higher. Especially for key electronic devices such as control modules in automobiles, their performance directly affects the safety and reliability of the whole vehicle. In order to ensure the stable operation of these electronic devices in complex and changeable working environments, the dust cover assembly, as an important protection component, plays an irreplaceable role. Some dust cover assemblies not only need to have good sealing performance to isolate the intrusion of external environmental factors such as dust and moisture, but also need to have a lead function, that is, to achieve a stable connection between internal and external electronic devices by assembling conductive sheets inside. However, there are the following problems in the design of the lead function of the current dust cover assembly: the connection stability between the conductive sheet and the internal and external conductors is relatively poor. In actual use, the connection between the conductive sheet built in the dust cover and the external conductor is likely to become loose due to vibration, impact or assembly error, resulting in poor signal transmission contact and affecting the performance of electronic devices. Summary of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a dust cover assembly that can improve the electrical connection stability.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a dust cover assembly, which includes a dust cover body with an inner cavity, a fixing frame fixedly connected to the dust cover body, and a conductive sheet fixedly connected to the fixing frame; the conductive sheet and the fixing frame are integrally formed by one-time injection molding, and the fixing frame and the dust cover body are integrally formed by two-time injection molding; a sleeve is integrally arranged outside the dust cover body, the conductive sheet has an external electrical pin extending into the sleeve, and the conductive sheet has an internal electrical pin protruding into the inner cavity; at least one of the internal electrical pins is arranged in an insertion sleeve and has two opposite clamping arms thereon, the insertion sleeve is integrally connected with the fixing frame, a slot is formed between the two clamping arms, contact heads are arranged at opposite positions on the two clamping arms, and an elastic support structure is arranged on the clamping arms.

[0006] Preferably, convex ribs are arranged on the inner wall of the inner cavity around the edge of the fixing frame, and ribs extend on the side of the convex ribs facing away from the fixing frame.

[0007] Preferably, the surface of the fixing frame has a plurality of connecting convex columns protruding towards the inside of the dust cover body.

[0008] Preferably, a frustum structure is convexly provided at the root of each of the external electrical pins and each of the internal electrical pins.

[0009] Preferably, support arms are provided on the opposite sides of the two oppositely arranged clamping arms, and the support arms are arranged at an angle to the extending direction of the clamping arms and are adapted to elastically abut against the side wall of the socket when the external plug is inserted into the socket.

[0010] Preferably, at least one clamping arm is provided with an elastic support shaft, the middle part of the elastic support shaft is fixedly connected to the clamping arm, and support platforms are provided at positions corresponding to both ends of the elastic support shaft on the socket.

[0011] Preferably, the elastic support shaft is a stainless steel shaft, a fixing hole is penetrated through the clamping arm, and the middle part of the elastic support shaft is penetrated through the fixing hole and fixed; a notch opposite to the socket is provided on the side wall of the socket, and the support platform is arranged at the notch.

[0012] Preferably, a sealing ring groove surrounding the inner cavity is provided on the periphery of the dust cover body.

[0013] The positive effects of the present utility model are as follows: In the present utility model, the structure of the dust cover assembly is optimized. Specifically, the dust cover assembly includes a dust cover body, a fixing frame and a conductive sheet. The conductive sheet and the fixing frame, and the fixing frame and the dust cover body are respectively connected into one body by two injection moldings, forming an injection-molded integrated structure with a compact structure and high strength; a sleeve is provided outside the dust cover body for protecting the external electrical pins of the conductive sheet. At the same time, at least one internal electrical pin is arranged in the socket, and a contact head and an elastic support structure are provided on its clamping arm to ensure stable electrical contact and enhance connection reliability when the external plug is inserted; through the design of the injection-molded integrated structure and the elastic support structure, the integrity, protection performance, electrical connection stability and durability of the assembly are improved, effectively avoiding the problem of poor contact caused by vibration, impact or assembly error, and being applicable to high-reliability industrial application environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the drawings required for the description of the specific embodiments or the prior art. Similar elements or parts in the drawings are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0015] Figure 1 It is a schematic structural diagram of the dust cover assembly in the present utility model;

[0016] Figure 2 It is an exploded view of the dust cover assembly in the present utility model;

[0017] Figure 3Schematic diagram of the combined state of the fixing bracket and the conductive sheet in the present utility model;

[0018] Figure 4 Partial cross-sectional view of the first socket in the present utility model;

[0019] Figure 5 Partial front view of the second socket in the present utility model;

[0020] Figure 6 is Figure 5 3D view of the second socket in

[0021] The reference numerals shown in the figure are: 1, dust cover body; 10, inner cavity; 11, sleeve; 12, rib; 13, rib; 14, sealing ring groove; 2, fixing bracket; 21, socket; 210, support platform; 22, connecting convex column; 23, frustum structure; 24, notch; 3, conductive sheet; 31, external electrical pin; 32, internal electrical pin; 33, clamping arm; 34, slot; 35, contact head; 36, support arm; 37, elastic support shaft. Detailed implementation manners

[0022] The embodiments of the technical solutions of the present utility model will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present utility model more clearly, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0023] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those skilled in the art to which the present utility model belongs.

[0024] The structure of the dust cover assembly in the embodiment of the present utility model is as shown in Figures 1 to 6As shown, it can be used for electronic devices such as control modules in automobiles. Specifically, it includes a dust cover body 1, a fixing frame 2, and a conductive sheet 3. The dust cover body 1 has an inner cavity 10. The fixing frame 2 is fixedly connected to the dust cover body 1, and the conductive sheet 3 is fixedly connected to the fixing frame 2. Specifically, the conductive sheet 3 and the fixing frame 2 are integrally formed by one-time injection molding, and the fixing frame 2 and the dust cover body 1 are integrally formed by secondary injection molding. The finally formed injection-molded integrated structure of the dust cover body 1, the fixing frame 2, and the conductive sheet 3 can improve the integrity and strength of the structure through two injection moldings, and is also conducive to the precise molding of complex structures. A sleeve 11 is integrally provided on the outside of the dust cover body 1. The conductive sheet 3 has an external electrical plug pin 31 extending into the sleeve 11. The presence of the sleeve 11 can protect the external electrical plug pin 31. During use, an external plug is inserted into the sleeve 11, and electrical connection is achieved by inserting a conductor in the external plug into the external electrical plug pin 31. The conductive sheet 3 has an internal electrical plug pin 32 protruding into the inner cavity 10. At least one of the internal electrical plug pins 32 is disposed in an insert sleeve 21 and has two opposite clamping arms 33 thereon. The insert sleeve 21 is integrally connected to the fixing frame 2. A slot 34 is formed between the two clamping arms 33. Contact heads 35 are provided at opposite positions on the two clamping arms 33, and an elastic support structure is provided on the clamping arms 33. When an external plug pin is inserted into the slot 34, the contact heads 35 are in close contact with it to form a reliable electrical contact. At the same time, the external plug pin exerts an outward pressing force on the clamping arms 33, causing them to deform. The elastic support structure elastically supports the clamping arms 33, thereby enhancing the connection reliability. This design of the clamping arms 33, the contact heads 35, and the elastic support structure ensures the stability of the connection between the conductive sheet 3 and the external conductor, effectively avoiding problems of poor contact caused by vibration, impact, or assembly errors, and significantly improving the durability of the dust cover assembly and the stability of signal transmission.

[0025] As Figure 1 shown, on the inner wall of the inner cavity 10, a rib 12 is provided around the edge of the fixing frame 2. A rib 13 extends on the side of the rib 12 facing away from the fixing frame 2. The main function of this design is to enhance the connection strength between the fixing frame 2 and the dust cover body 1. The design of the rib 13 can not only further improve the rigidity of the overall structure but also form additional support inside the inner cavity 10 to prevent the inner cavity 10 from deforming during assembly or use.

[0026] Refer to Figure 3As shown in the figure, further to enhance the connection strength between the fixing bracket 2 and the dust cover body 1, a plurality of connecting convex columns 22 protruding into the interior of the dust cover body 1 are also provided on the surface of the fixing bracket 2. The plurality of connecting convex columns 22 are distributed at different parts of the fixing bracket 2. During the secondary injection molding, the materials of the connecting convex columns 22 and the dust cover body 1 are fully combined to form an integrated connection structure. This design not only expands the contact area between the fixing bracket 2 and the dust cover body 1, but also significantly improves the mechanical bonding strength between the two through the embedding of the connecting convex columns 22, effectively preventing the problems of connection loosening or separation caused by vibration, impact or external force.

[0027] See Figure 1 and Figure 2 As shown in the figure, in order to enhance the anti-deformation ability of the external electric plug pins 31 and each of the internal electric plug pins 32, a frustum structure 23 is convexly provided at the root of each of the external electric plug pins 31 and each of the internal electric plug pins 32. The frustum structure 23 is integrally connected with the fixing bracket 2. The setting of the frustum structure 23 enhances the connection strength between the external electric plug pins 31 and each of the internal electric plug pins 32 and the fixing bracket 2 to a certain extent, thereby enhancing the anti-deformation ability.

[0028] In this embodiment, an elastic support structure is provided: As Figure 4 shown in the figure, on the opposite sides of the two oppositely arranged clamping arms 33, support arms 36 are provided. The support arms 36 are arranged at an angle to the extending direction of the clamping arms 33 and are adapted to elastically abut against the side wall of the socket 21 when the external plug pin is inserted into the socket 34, so as to provide effective elastic force for the clamping arms 33 through the support arms 36, thereby ensuring the reliability of the electrical connection between the clamping arms 33 and the external plug pin.

[0029] In this embodiment, another elastic support structure is also provided: See Figure 5 and Figure 6As shown, at least one clamping arm 33 is provided with an elastic support shaft 37. The middle part of the elastic support shaft 37 is fixedly connected to the clamping arm 33. At positions corresponding to the two ends of the elastic support shaft 37 on the socket 21, there are support platforms 210. In practical applications, when an external pin is inserted into the slot 34, the clamping arm 33 is deformed under the pressing force, pushing the two ends of the elastic support shaft 37 into contact with the corresponding support platforms 210 and causing elastic deformation of the elastic support shaft 37. Furthermore, under the action of the reverse elastic force of the elastic support shaft 37, the contact force between the clamping arm 33 and the external pin can be strengthened to ensure the reliability of electrical connection. The elastic support shaft 37 is preferably made of a stainless steel shaft with good elasticity. In order to adapt to the fixed connection between the elastic support shaft 37 and the clamping arm 33, a fixing hole is provided through the clamping arm 33, and the middle part of the elastic support shaft 37 is inserted into the fixing hole and fixed (such as by welding). A notch 24 opposite to the slot 34 is provided on the side wall of the socket 21, and the support platform 210 is arranged at the notch 24. This solution is simple and feasible and has practicality.

[0030] Furthermore, a sealing ring groove 14 surrounding the inner cavity 10 is provided on the periphery of the dust cover body 1. The sealing ring groove 14 can be used to arrange a sealing member (such as a rubber ring or foaming glue), so as to seal the gap at the connection part of the dust cover body 1 and the external body through the sealing member when the dust cover body 1 is connected to the external body, improving the sealing and protection performance.

[0031] For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And these obvious changes or modifications derived from the essential spirit of the present invention still fall within the protection scope of the present invention.

Claims

1. A dust cover assembly, comprising a dust cover body (1) having an inner cavity (10), a fixing frame (2) fixedly connected to the dust cover body (1), and a conductive sheet (3) fixedly connected to the fixing frame (2); the conductive sheet (3) and the fixing frame (2) are integrally formed by a first injection molding, and the fixing frame (2) and the dust cover body (1) are integrally formed by a second injection molding; characterized in that: The dust cover body (1) is integrally provided with a sleeve (11) on the outside, the conductive sheet (3) has an external electrical pin (31) extending into the sleeve (11), and the conductive sheet (3) has an internal electrical pin (32) protruding from the inner cavity (10); at least one of the internal electrical pins (32) is arranged in the socket (21) and has two opposing clamping arms (33) thereon, the socket (21) is integrally connected to the fixing frame (2), a slot (34) is formed between the two clamping arms (33), contact heads (35) are provided at opposite positions on the two clamping arms (33), and an elastic support structure is provided on the clamping arms (33).

2. The dust cover assembly according to claim 1, characterized in that: A convex rib (12) is provided on the inner wall of the inner cavity (10) around the edge of the fixing frame (2), and a rib (13) extends from the side of the convex rib (12) facing away from the fixing frame (2).

3. The dust cover assembly according to claim 1, characterized in that: The surface of the fixing frame (2) has a plurality of connecting bosses (22) protruding toward the interior of the dust cover body (1).

4. The dust cover assembly according to claim 1, characterized in that: A frustum structure (23) is protrudingly provided at the root of each of the external electrical plug pins (31) and each of the internal electrical plug pins (32).

5. The dust cover assembly according to claim 1, characterized in that: A support arm (36) is provided on the opposite side of the two clamp arms (33) arranged opposite to each other. The support arm (36) is arranged at an angle with the extension direction of the clamp arm (33) and is suitable for elastically contacting the side wall of the socket (21) when the external pin is inserted into the slot (34).

6. The dust cover assembly according to claim 1, characterized in that: At least one clamping arm (33) is provided with an elastic support shaft (37), the middle portion of the elastic support shaft (37) is fixedly connected to the clamping arm (33), and a support platform (210) is provided on the insert sleeve (21) at positions corresponding to both ends of the elastic support shaft (37).

7. The dust cover assembly according to claim 6, characterized in that: The elastic support shaft (37) is a stainless steel shaft, and a fixing hole is provided through the clamp arm (33), and the middle part of the elastic support shaft (37) is passed through the fixing hole and fixed; a notch (24) opposite to the slot (34) is provided on the side wall of the plug sleeve (21), and the support platform (210) is arranged at the notch (24).

8. The dust cover assembly according to claim 1, characterized in that: The dust cover body (1) is provided with a sealing ring groove (14) around the inner cavity (10) on its periphery.

Images