A wiring protection structure with electromagnetic shielding

Abstract

The utility model discloses a kind of wiring protection structures with electromagnetic shielding, including junction box, the junction box is divided into upper shell, lower shell, the upper shell is hingedly connected with lower shell rear side, still include upper electromagnetic shielding net and lower electromagnetic shielding net, the upper electromagnetic shielding net covers in upper shell inner wall, the lower electromagnetic shielding net covers in lower shell inner wall, the upper electromagnetic shielding net is equipped with downwardly extending apron, so that upper shell and lower shell merge, lower electromagnetic shielding net and upper electromagnetic shielding net are staggered in space;The upper shell and lower shell are equipped with first wiring hole and second wiring hole.The utility model is characterized in that, the influence of outside electromagnetic interference to box signal transmission is greatly reduced, the stability and accuracy of signal transmission are significantly improved, the channel of dust, moisture, oil stain and other external pollutants into wiring area is effectively blocked.

Description

Technical Field

[0001] This utility model relates to the field of engine testing technology, and in particular to a wiring protection structure with electromagnetic shielding. Background Technology

[0002] In modern electronic devices and systems, reliable wiring connections are fundamental to ensuring normal operation. Test equipment typically requires connecting numerous sensor cables, and these connections are often exposed to complex working environments, making them susceptible to dust, moisture, and other environmental factors, leading to decreased connection reliability or even failure. Traditional protection methods mainly include tape bundling and waterproof connectors. While these methods address physical protection to some extent, they have significant limitations. Tape bundling is a basic wiring protection method, achieving simple insulation and fixation by wrapping insulating tape around the wiring points. However, tape is susceptible to environmental factors such as temperature changes and humidity, and long-term use may result in adhesive degradation, aging, and cracking, leading to decreased or even failed protection. Furthermore, tape bundling cannot provide electromagnetic shielding; in environments with severe electromagnetic interference, signal transmission quality will be severely affected. As modern electronic systems place increasingly higher demands on signal integrity, especially in high-frequency, high-speed signal transmission scenarios, the shortcomings of traditional protection methods become even more apparent.

[0003] Existing wiring protection technologies primarily focus on physical protection, lacking sufficient consideration for electromagnetic compatibility (EMC). With the continuous increase in the operating frequency of electronic systems and the increasing complexity of the electromagnetic environment, wiring protection solutions integrating electromagnetic shielding have become an inevitable trend in technological development. The electromagnetically shielded wiring protection structure proposed in this patent overcomes the limitations of traditional methods through innovative design, providing a more comprehensive solution for reliable connections of testing equipment and other electronic systems.

[0004] The above background information is provided only to aid in understanding the concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0005] The main objective of this invention is to propose a wiring protection structure with electromagnetic shielding to address the problem that existing wiring protection technologies primarily focus on physical protection and lack sufficient consideration for electromagnetic compatibility. This addresses the technical problem that, with the continuous increase in the operating frequency of electronic systems and the increasing complexity of the electromagnetic environment, signal transmission quality is severely affected in environments with severe electromagnetic interference.

[0006] Therefore, this utility model proposes a wiring protection structure with electromagnetic shielding.

[0007] Preferably, the present invention may also have the following technical features:

[0008] An electromagnetically shielded wiring protection structure includes a junction box, which is divided into an upper shell and a lower shell. The upper shell and the lower shell are hinged together at the rear. The junction box also includes an upper electromagnetic shielding mesh and a lower electromagnetic shielding mesh. The upper electromagnetic shielding mesh covers the inner wall of the upper shell, and the lower electromagnetic shielding mesh covers the inner wall of the lower shell. The upper electromagnetic shielding mesh has a downwardly extending skirt, so that when the upper shell and the lower shell are combined, the lower electromagnetic shielding mesh and the upper electromagnetic shielding mesh are spatially interleaved. The upper shell and the lower shell are provided with a first wiring hole and a second wiring hole.

[0009] Furthermore, the inner wall thickness of the upper shell is greater than that of the lower shell, so that when the upper and lower shells are combined, the upper electromagnetic shielding mesh skirt is misaligned with the lower electromagnetic shielding mesh, and the upper electromagnetic shielding mesh extends into the lower shell.

[0010] Furthermore, a protruding ring is provided around the lower end of the inner wall of the upper shell with glue, which pushes the upper electromagnetic shielding mesh skirt away from the inner wall and misaligns it with the lower electromagnetic shielding mesh, so that when the upper and lower shells are combined, the upper electromagnetic shielding mesh skirt extends into the lower shell.

[0011] Furthermore, the skirt hem is provided with a rolled edge, which is rolled towards the direction of the inner wall.

[0012] Furthermore, the upper electromagnetic shielding mesh and the lower electromagnetic shielding mesh are respectively fixed to the inner walls of the upper and lower housings with glue.

[0013] Furthermore, the front sides of the upper and lower housings are connected by an elastic snap-fit ​​structure, which includes a hook portion disposed on the upper housing and a snap-fit ​​portion disposed on the lower housing.

[0014] Furthermore, the first wiring hole and the second wiring hole are located on the upper housing.

[0015] Furthermore, the upper half of the first wiring hole and the lower half of the second wiring hole are disposed in the upper housing, and the lower half are disposed in the lower housing.

[0016] Furthermore, a sealing device is provided inside the first wiring hole and the second wiring hole.

[0017] Furthermore, the sealing device is a sealing ring, and a sealing ring mounting groove is provided inside the first wiring hole and the second wiring hole, and the sealing ring is installed in the sealing ring mounting groove.

[0018] The beneficial effects of this utility model compared with the prior art include:

[0019] The customized electromagnetic shielding structure is specifically designed to significantly reduce the impact of external electromagnetic interference on signal transmission within the box, thereby significantly improving the stability and accuracy of signal transmission and effectively solving the technical pain points of signal distortion and transmission interruption in electromagnetic source scenarios.

[0020] An innovative electromagnetic shielding mesh skirt structure has been added. This design ensures that all wiring areas inside the junction box are completely enclosed by the electromagnetic shielding mesh, forming a comprehensive electromagnetic protection space without blind spots, further enhancing the overall electromagnetic interference resistance.

[0021] The upper electromagnetic shielding mesh skirt has a rolled edge structure, which allows for a smooth, sliding fit with the lower electromagnetic shielding mesh. This ensures smooth opening and closing and further enhances the sealing performance of the shielding structure through the sliding fit.

[0022] A dedicated sealing device is installed at the wiring hole location to effectively block external contaminants such as dust, moisture, and oil from entering the wiring area, thus preventing problems such as oxidation of the wiring terminals and damage to the circuit insulation layer caused by contaminants.

[0023] The junction box uses a flexible snap-lock mechanism for opening and closing. Operators can quickly open and close the junction box simply by pressing and flicking it manually, without the need for additional tools, significantly improving the convenience and efficiency of on-site operations. Attached Figure Description

[0024] Figure 1 This is a front view of the junction box of this utility model in the closed state.

[0025] Figure 2 This is a front view of the junction box of this utility model in the open state.

[0026] Figure 3 This is a cross-sectional view of the junction box of this utility model in the closed state.

[0027] Figure 4 This is a front view of another embodiment of the wiring hole of this utility model. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to specific embodiments and the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.

[0029] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein the same reference numerals denote the same parts unless otherwise specifically stated.

[0030] like Figure 1-4The diagram illustrates a wiring protection structure with electromagnetic shielding, comprising a junction box 1, which is divided into an upper housing 11 and a lower housing 12. The upper housing 11 and the lower housing 12 are hinged together at the rear. A bushing 10 is provided on both the upper housing 11 and the lower housing 12, and the bushings are hinged together by a cylindrical hinge to allow the junction box 1 to open and close. The structure also includes an upper electromagnetic shielding mesh 2 and a lower electromagnetic shielding mesh 3. The upper electromagnetic shielding mesh 2 covers the inner wall of the upper housing 11, ensuring that the wiring area inside the junction box 1 is covered by the electromagnetic shielding mesh. The lower electromagnetic shielding mesh 3 covers the inner wall of the lower housing 12. The upper electromagnetic shielding mesh 2 has a downwardly extending skirt 4, so that when the upper housing 11 and the lower housing 12 are closed, the lower electromagnetic shielding mesh 3 and the upper electromagnetic shielding mesh 2 are spatially interwoven, creating a protective space without blind spots. The upper housing 11 and the lower housing 12 are provided with a first wiring hole 5 and a second wiring hole 6. In use, open junction box 1 and pass the cables to be connected through the first wiring hole 5 and the second wiring hole 6 respectively; connect the cables to be connected in the wiring area of ​​junction box 1; after connection, close the upper shell 11 and the lower shell 12 of junction box 1. When closed, because the thickness of the inner wall of the upper shell 11 is greater than the thickness of the lower shell 12, or because the protruding ring at the lower end of the inner wall of the upper shell 11 always pushes the skirt 4 of the upper electromagnetic shielding mesh 2 away from the inner wall, the skirt 4 of the upper electromagnetic shielding mesh 2 and the lower electromagnetic shielding mesh 3 maintain a misaligned posture. As the upper shell 11 continues to close downwards, the rolled edge at the front end of the skirt 4 of the upper electromagnetic shielding mesh 2 first contacts the surface of the lower electromagnetic shielding mesh 3. The arc-shaped structure of the rolled edge 7 facing the inner wall plays its role at this moment. The smooth arc surface slides smoothly along the surface of the lower electromagnetic shielding mesh 3 without scratching it. The upper shell 11 and the lower shell 12 are completely closed. At this time, the skirt 4 of the upper electromagnetic shielding mesh 2 is stably located inside the lower shell 12 and forms a spatially intersecting state with the lower electromagnetic shielding mesh 3. At the same time, since the electromagnetic shielding mesh is made of metal, the rolled edge 7 is elastic and can maintain a slight fit with the lower electromagnetic shielding mesh 3, further reducing electromagnetic leakage gaps.

[0031] like Figure 3 The inner wall thickness of the upper housing 11 shown is greater than that of the lower housing 12. Alternatively, a protruding ring can be made around the inner wall of the upper housing 11 with glue at the lower end of the inner wall to push the skirt 4 of the upper electromagnetic shielding mesh 2 away from the inner wall, so that the upper electromagnetic shielding mesh 2 forms a shape that is wider at the top and narrower at the bottom. In this way, the upper electromagnetic shielding mesh 2 and the lower electromagnetic shielding mesh 3 can be staggered in space when the junction box 1 is closed, forming all-round protection.

[0032] like Figure 3The skirt 4 shown is provided with a rolled edge 7. The rolled edge 7 is rolled towards the inner wall to form an arc-shaped structure that is narrow at the top and wide at the bottom. The rolled edge 7 not only avoids the sharp angle of the skirt 4 from scratching the operator, but also allows the skirt to slide smoothly into the lower shell 12 along the arc surface of the rolled edge 7 during the shell closing process. It can also fit with the lower electromagnetic shielding mesh 3 to form a complete protective barrier and reduce the risk of interference.

[0033] like Figure 3 The upper electromagnetic shielding mesh 2 and the lower electromagnetic shielding mesh 3 shown are fixedly installed on the inner walls of the upper and lower shells respectively with glue. Both are fixedly installed with special industrial glue. This fixing method can ensure that the shielding mesh is tightly attached to the inner wall of the shell, and avoid damage to the shielding mesh structure caused by drilling, thus ensuring that the shielding performance is not affected.

[0034] like Figure 2 The front sides of the upper housing 11 and the lower housing 12 shown are connected by an elastic buckle 8 structure. The elastic buckle 8 structure includes a hook portion 81 provided on the upper housing 11 and a locking portion 82 provided on the lower housing 12. When closing the housing, simply press the front end of the upper and lower housings lightly, and the hook portion 81 will automatically engage and lock with the locking portion 82; when opening, simply pinch both sides of the hook portion 81 and gently push it outward to quickly unlock, improving convenience and reducing operation time.

[0035] like Figure 1-3 The first wiring hole 5 and the second wiring hole 6 shown are located on the upper housing 11. The advantage of this arrangement is that the sealing ring is a complete circular ring, resulting in good sealing performance.

[0036] like Figure 4 The upper half of the first wiring hole 5 and the second wiring hole 6 shown are located on the upper housing 11, and the lower half are located on the lower housing 12. The advantage of this is that it allows for faster assembly and disassembly.

[0037] like Figure 3 The first wiring hole 5 and the second wiring hole 6 shown are provided with a sealing device 9 on their inner sides. The sealing device is a sealing ring 91. The first wiring hole 5 and the second wiring hole 6 are provided with a sealing ring mounting groove 92. The sealing ring is installed in the sealing ring mounting groove 92, which can effectively prevent dust, moisture and oil from entering the junction box 1 and avoid oxidation or short circuit of the line connector.

[0038] Those skilled in the art will recognize that numerous variations are possible with respect to the above description, and the embodiments and figures are merely for describing one or more specific implementations.

[0039] Although exemplary embodiments of the present invention have been described and illustrated, those skilled in the art will understand that various changes and substitutions can be made thereto without departing from the spirit of the present invention. Furthermore, many modifications can be made to adapt specific situations to the doctrine of the present invention without departing from the central concept of the present invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents that fall within the scope of the present invention.

Claims

1. A wiring protection structure with electromagnetic shielding, comprising a junction box (1), wherein the junction box is divided into an upper housing (11) and a lower housing (12), the upper housing (11) and the lower housing (12) being hinged together at the rear, characterized in that: It also includes an upper electromagnetic shielding mesh (2) and a lower electromagnetic shielding mesh (3). The upper electromagnetic shielding mesh (2) covers the inner wall of the upper shell (11), and the lower electromagnetic shielding mesh (3) covers the inner wall of the lower shell (12). The upper electromagnetic shielding mesh (2) is provided with a downwardly extending skirt (4), so that when the upper shell (11) and the lower shell (12) are combined, the lower electromagnetic shielding mesh (3) and the upper electromagnetic shielding mesh (2) are spatially intersected. The upper shell (11) and the lower shell (12) are provided with a first wiring hole (5) and a second wiring hole (6).

2. The wiring protection structure as described in claim 1, characterized in that: The inner wall thickness of the upper shell (11) is greater than that of the lower shell (12), so that when the upper shell (11) and the lower shell (12) are combined, the skirt (4) of the upper electromagnetic shielding mesh (2) and the lower electromagnetic shielding mesh (3) are misaligned, and the upper electromagnetic shielding mesh (2) extends into the lower shell (12).

3. The wiring protection structure as described in claim 1, characterized in that: The lower end of the inner wall of the upper shell (11) is provided with a protruding ring around the inner wall with glue, which pushes the skirt (4) of the upper electromagnetic shielding mesh (2) away from the inner wall and forms a misalignment with the lower electromagnetic shielding mesh (3), so that when the upper shell (11) and the lower shell (12) are combined, the skirt (4) of the upper electromagnetic shielding mesh (2) extends into the lower shell (12).

4. The wiring protection structure as described in claim 1, characterized in that: The skirt (4) is provided with a rolled edge (7), which is rolled towards the direction of the inner wall.

5. The wiring protection structure as described in claim 1, characterized in that: The upper electromagnetic shielding mesh (2) and the lower electromagnetic shielding mesh (3) are respectively fixed to the inner walls of the upper shell (11) and the lower shell (12) with glue.

6. The wiring protection structure as described in claim 1, characterized in that: The front sides of the upper shell (11) and the lower shell (12) are connected by an elastic buckle (8) structure, which includes a hook (81) provided on the upper shell and a snap-fit ​​(82) provided on the lower shell.

7. The wiring protection structure as described in claim 1, characterized in that: The first wiring hole (5) and the second wiring hole (6) are located on the upper housing (11).

8. The wiring protection structure as described in claim 1, characterized in that: The upper half of the first wiring hole (5) and the second wiring hole (6) are disposed in the upper housing (11), and the lower half are disposed in the lower housing (12).

9. The wiring protection structure as described in claim 1, characterized in that: A sealing device (9) is provided inside the first wiring hole (5) and the second wiring hole (6).

10. The wiring protection structure as described in claim 9, characterized in that: The sealing device is a sealing ring (91), and the first wiring hole (5) and the second wiring hole (6) have sealing ring mounting grooves (92), and the sealing ring (91) is installed in the sealing ring mounting grooves (92).

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