Sensor junction box with waterproof and quick-release functions

Abstract

The utility model relates to a sensor junction box with waterproof and quick release functions. The plastic box body and the plastic box cover are used, and the sealing performance and the connection convenience of the plastic box body and the plastic box cover during connection are improved in an interference fit connection mode. And the connection state of the plastic box body and the plastic box cover is further fixed by arranging a buckle. The utility model has the advantages of simple and fast disassembly and assembly, no need of extra tools, good waterproof effect, avoidance of deformation of metal materials caused by long-term extrusion by bolts, and substantial prolongation of the service life.

Description

Technical Field

[0001] This application relates to the field of sensor junction box technology, and in particular to a sensor junction box with waterproof and quick-release functions. Background Technology

[0002] Sensor junction boxes are used to collect and organize signal lines from multiple sensors, achieving signal relay by connecting each line to a PCB circuit board within the junction box. Existing sensor junction boxes typically consist of a stainless steel or other metal enclosure, with bolts used to connect the enclosure and cover. Gaskets are placed between the enclosure and cover to improve waterproofing, requiring at least four bolts for a stable connection and waterproofing, making disassembly cumbersome. Furthermore, the distance from the bolts makes it difficult to ensure a tight seal between the cover and the gaskets, compromising waterproofing performance. Utility Model Content

[0003] To address the problems mentioned in the background art, the purpose of this application is to provide a sensor junction box with waterproof and quick-release functions. It includes a plastic box body and a plastic box cover, which are connected by an interference fit. An elastic connecting rod extending towards the plastic box cover is provided on the outer surface of the side of the plastic box body. A buckle is provided at the end of the elastic connecting rod. The plastic box cover has a corresponding bearing surface for the buckle. A hole is provided on the side of the plastic box body, and a plastic interface is connected to the hole. A sealing element is connected to the end face of the plastic interface away from the plastic box body.

[0004] Preferably, the plastic box body is made of PC flame-retardant material, and the plastic box lid is made of PC flame-retardant material.

[0005] Preferably, the plastic interface is a waterproof nylon interface.

[0006] Preferably, the sealing element is an EPDM top cover.

[0007] Preferably, the plastic box body extends toward the plastic box lid and has an annular protruding connecting part, and the inner side wall of the plastic box lid is interference-fitted with the outer side of the protruding connecting part.

[0008] Preferably, there is a gap between the plastic lid and the plastic box body.

[0009] Preferably, the protrusion of the buckle extends toward the plastic box body, and the protrusion has an inclined surface along the extension direction of the buckle, the inclined surface extending from the end of the buckle to the initial end of the buckle.

[0010] In summary, this application includes the following beneficial technical effects:

[0011] 1. It adopts a dual fixing design of interference fit and snap-fit, which ensures the fixing effect while maintaining waterproof sealing. It is also easy to disassemble without tools, eliminating the complicated process of using a screwdriver to remove screws one by one.

[0012] 2. The design using a plastic box and lid avoids the potential for insufficient tightness when connecting stainless steel or other metal boxes and lids, as seen in existing technologies, significantly improving waterproof performance. Furthermore, the elasticity of plastic prevents deformation caused by frequent screw removal and installation of the metal box, extending its lifespan. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present invention;

[0014] Figure 2 This is an exploded view of the three-dimensional view of this utility model;

[0015] Figure 3 This is the front view of this utility model.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Plastic box body; 101. Flexible connecting rod; 102. Hole; 2. Plastic box cover; 3. Plastic interface; 4. Sealing element. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] The following is in conjunction with the appendix Figure 1-3 This application provides a further detailed description. Embodiments of this application disclose a sensor junction box with waterproof and quick-release functions. It includes a plastic housing 1 and a plastic cover 2, which are connected by an interference fit. This interference fit ensures that the plastic housing 1 and plastic cover 2 can maintain tight contact at any position. The elasticity of the plastic significantly improves the sealing performance, thereby enhancing waterproofing. Furthermore, removal requires no additional tools and eliminates the need for multiple disassembly steps required for removing bolts. The plastic housing 1 and plastic cover 2 are both made of PC flame-retardant material, providing both waterproofing and flame-retardant properties.

[0020] An elastic connecting rod 101 extending towards a plastic lid 2 is connected to the outer surface of the side of the plastic box body 1. The end of the elastic connecting rod 101 has a buckle, and the plastic lid 2 has a corresponding bearing surface for the buckle. The buckle fixes the plastic lid 2 relative to the plastic box body 1, preventing accidental external forces from disrupting the interference fit between the plastic box body 1 and the plastic lid 2. Specifically, the buckle's protrusion extends towards the box body, and the protrusion has an inclined surface along the extension direction of the buckle, extending from the end of the buckle to its initial end. When the inclined surface contacts the plastic lid 2, it guides the elastic connecting rod 101 to bend outwards, thereby contacting the buckle and the buckle's protrusion blocking the plastic lid 2. Based on common knowledge in this field and the basic characteristics of a snap fastener, the protrusion of the snap fastener must include a protrusion for achieving a locking effect, and the protrusion must include an inclined surface as a guide surface, as well as a fixing surface or fixing part for fixing. Regardless of how the fixing surface or fixing part of the snap fastener cooperates with the bearing surface of the plastic box cover 2, the elastic connecting rod 101 can elastically clamp the plastic box cover to increase friction, and the protrusion of the snap fastener can prevent the plastic box cover 2 from disengaging away from the plastic box body 1, thereby achieving the effect of fixing the plastic box cover 2. By pulling the elastic connecting rod 101 away from the plastic box cover 2, the snap fastener can be disengaged from the fixed state of the plastic box cover 2.

[0021] A hole 102 is provided on the side of the plastic box 1, and a plastic interface 3 is connected to the hole 102. A sealing element 4 is connected to the end face of the plastic interface 3 away from the plastic box 1. The plastic interface 3 can be connected to the hole 102 using conventional techniques such as interference fit or threaded connection, and the sealing element 4 can also be connected to the end face of the plastic interface 3 using conventional techniques such as interference fit or threaded connection. Among them, the plastic interface 3 is a nylon waterproof interface, and the sealing element 4 is a EPDM top cover.

[0022] Furthermore, in this embodiment, the plastic box body 1 and the plastic box lid 2 are connected by an interference fit, wherein the plastic box body 1 extends towards the plastic box lid 2 and has an annular protruding connecting part, and the inner sidewall of the plastic box lid 2 is interference-fitted with the protruding connecting part. The protruding part ensures that the outer side of the plastic box body 1 and the outer side of the lid are coplanar. In addition, a gap is provided between the plastic box lid 2 and the plastic box body 1, allowing a hand to reach through the gap and pull the plastic box lid 2 out of the interference fit, further improving the ease of disassembly.

[0023] Furthermore, a ring-shaped rubber seal is provided on the outer side of the protruding connection to further enhance the waterproof sealing.

[0024] Working Principle: A circuit board is installed inside the plastic box 1. The plastic box 1 is placed in the desired position, and the sealing element 4 is removed to allow the opening of the plastic structure to pass through the inside and outside of the plastic box 1. The cable to be connected is passed through the plastic interface 3 and extended into the plastic box 1 to connect with the circuit board inside the plastic box 1. After the wiring is completed, the plastic box cover 2 is placed over the opening of the box. When the plastic box cover 2 contacts the inclined surface of the buckle, the elastic connecting rod 101 bends outward under the guidance of the inclined surface, allowing the plastic box cover 2 to continue moving towards the plastic box 1 until it contacts the plastic box 1. By pressing the plastic box cover 2 towards the plastic box 1, the plastic box cover 2 and the plastic box 1 are made to have an interference fit until the buckle mates with the bearing surface of the plastic box cover 2, achieving the required interference fit position between the plastic box 1 and the plastic box cover 2. Under the action of the buckle, the plastic box 1 and the plastic box cover 2 are fixed in the set interference fit position. When disassembly is required, first pull the elastic rod outward to disengage the buckle from the locked state of the plastic box cover 2, and then pull the plastic box cover 2 forcefully to disengage the plastic box cover 2 from the plastic box body 1 from the interference fit connection state.

[0025] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0026] In this application, unless otherwise expressly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this application, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A sensor junction box with waterproof and quick-release functions, characterized in that, The device includes a plastic box body (1) and a plastic box cover (2). The plastic box body (1) and the plastic box cover (2) are connected by an interference fit. The outer surface of the side of the plastic box body (1) is provided with an elastic connecting rod (101) extending towards the plastic box cover (2). The end of the elastic connecting rod (101) is provided with a buckle. The plastic box cover (2) is provided with a bearing surface corresponding to the buckle. The side of the plastic box body (1) is provided with a hole (102). The hole (102) is connected to a plastic interface (3). The end face of the plastic interface (3) away from the plastic box body (1) is connected to a sealing element (4).

2. The sensor junction box with waterproof and quick-release functions according to claim 1, characterized in that, The plastic box body (1) is made of PC flame-retardant material, and the plastic box cover (2) is made of PC flame-retardant material.

3. The sensor junction box with waterproof and quick-release functions according to claim 1, characterized in that, The plastic interface (3) is a nylon waterproof interface.

4. The sensor junction box with waterproof and quick-release functions according to claim 1, characterized in that, The sealing element (4) is an EPDM top cover.

5. The sensor junction box with waterproof and quick-release functions according to claim 1, characterized in that, The plastic box body (1) extends toward the plastic box cover (2) and has an annular protruding connecting part. The inner side wall of the plastic box cover (2) is interference-fitted with the outer side of the protruding connecting part.

6. The sensor junction box with waterproof and quick-release functions according to claim 5, characterized in that, There is a gap between the plastic box lid (2) and the plastic box body (1).

7. The sensor junction box with waterproof and quick-release functions according to claim 1, characterized in that, The protrusion of the buckle extends toward the plastic box body (1), and the protrusion has an inclined surface along the extension direction of the buckle. The inclined surface extends from the end of the buckle to the initial end of the buckle.

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