Shielding protection sleeve

Abstract

The application provides a shielding protective sleeve, which comprises a sleeve body, an inner cavity of the sleeve body is used for accommodating a plurality of wire harnesses, and the sleeve body comprises a first glass fiber layer, a shielding layer and a second glass fiber layer which are sequentially arranged from inside to outside; the first glass fiber layer, the shielding layer and the second glass fiber layer are in an integrated connection structure, or at least the axial two ends of the first glass fiber layer and the second glass fiber layer are sealingly connected. The shielding protective sleeve provided by the application can directly protect the plurality of wire harnesses, so that a large number of concentrated wire harnesses are collectively protected by one protective sleeve with a shielding function, the occupied space is small, the connection and arrangement of a large number of wire harnesses are facilitated, the problem that concentrated large numbers of wiring positions are not convenient to use wire harnesses with shielding layers is solved, and the wiring convenience of the wiring positions is improved; and the structure of the sleeve is simple, and the thickness of the sleeve body is small, so that the sleeve is easy to manufacture and does not excessively constrain the bending and arrangement of the plurality of wire harnesses.

Description

Technical Field

[0001] This application relates to the field of cable technology, and specifically to a shielded protective sleeve with a shielding layer. Background Technology

[0002] In many types of equipment, to prevent signal lines such as network cables from being affected by electromagnetic interference, a shielding layer is usually integrated outside the wire harness. Common examples include shielding and insulation layers integrated outside double-strand wire harnesses. This results in a significant increase in the diameter of the wire harness and a greater demand for space. For areas with a large number of wire harnesses connected in a concentrated manner (such as the wiring pins inside a controller, which may require 20-40 wire harnesses), using wire harnesses with built-in shielding can lead to insufficient wiring space to accommodate many thicker wire harnesses, or the wire harnesses may become too crowded, making wire harness connection and arrangement inconvenient. Utility Model Content

[0003] In view of this, this application aims to provide a shielded protective sleeve with a shielding layer and a simple structure, which can directly protect multi-strand wire harnesses, solve the problem that it is inconvenient to use wire harnesses with built-in shielding layers in centralized wiring locations, and improve the wiring convenience of such wiring locations.

[0004] This application provides a shielding and protective sleeve, including a sleeve body, the inner cavity of which is used to accommodate a multi-strand wire harness, and the sleeve body includes a first fiberglass layer, a shielding layer and a second fiberglass layer arranged sequentially from the inside to the outside.

[0005] The first fiberglass layer, the shielding layer, and the second fiberglass layer are integrally connected, or at least the first fiberglass layer and the second fiberglass layer are sealed together at both ends along their axial direction.

[0006] In one possible implementation, the first fiberglass layer is a first fiberglass tube, the shielding layer is a shielding tube, the second fiberglass layer is a second fiberglass tube, and the first fiberglass tube, the shielding tube, and the second fiberglass tube are sequentially sleeved radially from the inside to the outside to form the sleeve body.

[0007] Furthermore, the axial ends of the first and second fiberglass tubes are bonded together to seal the shielding tube between the two fiberglass tube bodies.

[0008] In one possible implementation, one or both ends of the sleeve body are provided with grounding pins connected to the shielding layer.

[0009] In one possible implementation, the shielding layer is a tube enclosed by a metal mesh, the tube comprising a tubular segment and a strip segment integrally connected to the tubular segment, the strip segment extending out of the sleeve body to form a grounding pin.

[0010] In one possible implementation, the grounding pin is fitted with an insulating sleeve.

[0011] In one possible implementation, the shielding tube is a tube body surrounded by a metal mesh, and the tube cavity is provided with support rings that fit against the inner wall, the support rings being arranged at intervals along the axial direction of the tube body.

[0012] In one possible implementation, the difference between the diameter of the first fiberglass layer and the diameter of the second fiberglass layer is 2 mm to 3 mm.

[0013] In one possible implementation, fasteners for securing the sleeve body and the multi-strand wire harness are provided at both axial ends of the sleeve body, and the fasteners are detachably connected to the sleeve body.

[0014] In one possible implementation, the fastener includes a heat-shrink tubing for wrapping around the end of the sleeve body.

[0015] In one possible implementation, the fastener includes a clamp fitted onto the end of the sleeve body, and the outer wall of the sleeve body is provided with a positioning groove for the clamp to be inserted.

[0016] The shielding protective sleeve provided in this application has a shielding layer and a fiberglass layer with protective properties such as insulation, fire resistance, heat insulation, and flame retardancy. It integrates external protection functions such as shielding and insulation, and can directly protect multi-strand wire harnesses. This allows a large number of centralized wire harnesses to share a single shielded protective sleeve, occupying little space and facilitating connection and layout. It solves the problem that it is inconvenient to use wire harnesses with built-in shielding layers in centralized wiring locations, improving the wiring convenience of such wiring locations. Moreover, the shielding protective sleeve has a simple structure and a small tube thickness, which is not only easy to manufacture, but also does not excessively restrict the bending and layout of multi-strand wire harnesses. It is very suitable for protecting a large number of centralized multi-strand wire harnesses, which is beneficial for the wiring operation and routing of multi-strand wire harnesses. Attached Figure Description

[0017] Figure 1 The figure shown is a radial cross-sectional view of the shielding protective sleeve in an embodiment of this application;

[0018] Figure 2 The diagram shown is a schematic diagram of the shielding layer grounding pin in an embodiment of this application;

[0019] Figure 3 The figure shown is an axial cross-sectional view of the shielding protective sleeve in an embodiment of this application;

[0020] Figure 4 The diagram shown is a schematic representation of the composition of the shielding protective sleeve in an embodiment of this application.

[0021] Figure 5The figure shown is an external schematic diagram of the sleeve body in an embodiment of this application.

[0022] Figures 1-5 middle:

[0023] 1. Sleeve body; 101. Positioning groove; 11. First fiberglass layer; 12. Shielding layer; 13. Second fiberglass layer; 121. Grounding pin; 2. Clamp. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. 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 scope of protection of this application.

[0025] Please refer to the attached document. Figures 1-5 The embodiments of this application provide a shielding protective sleeve, including a sleeve body 1. The inner cavity of the sleeve body 1 is used to accommodate a multi-strand wire harness. The sleeve body 1 includes a first fiberglass layer 11, a shielding layer 12, and a second fiberglass layer 13 arranged sequentially from the inside to the outside. The first fiberglass layer 11, the shielding layer 12, and the second fiberglass layer 13 are integrally connected structures, for example, by injection molding to form an integral component, or at least the axial ends of the first fiberglass layer 11 and the second fiberglass layer 13 are sealed and connected to protect the inner shielding layer 12 and also to protect the ends of the sleeve body 1 from dust and water.

[0026] The shielding protective sleeve provided in this application has a shielding layer 12 and a fiberglass layer with protective properties such as insulation, fire resistance, heat insulation, and flame retardancy. It integrates shielding and insulation functions, and can directly protect multi-strand wire harnesses. This allows a large number of centralized wire harnesses to share a single protective sleeve with shielding and insulation functions. It occupies little space and facilitates the connection and routing of wire harnesses. It solves the problem that it is inconvenient to use wire harnesses with built-in shielding layer 12 in centralized wiring locations, thus improving the wiring convenience of such wiring locations. Moreover, the shielding protective sleeve has a simple structure and a small tube thickness, which is not only easy to manufacture, but also does not excessively restrict the bending and routing of multi-strand wire harnesses. It is very suitable for protecting a large number of centralized multi-strand wire harnesses, which is beneficial for the wiring operation and routing of multi-strand wire harnesses. At the same time, the shielding layer 12 is usually metal, sandwiched between two fiberglass layers, so it will not hook or get caught on the multi-strand wire harnesses, and it also prevents the risk of metal debris falling into the equipment, such as the motor controller cavity, and causing short circuits and insulation failures.

[0027] Specifically, the two fiberglass layers and one shielding layer 12 of the sleeve body 1 can be integrally molded as a single component by injection molding. Alternatively, the first fiberglass layer 11 can be a first fiberglass tube, the shielding layer 12 a shielding tube, and the second fiberglass layer 13 a second fiberglass tube. The first fiberglass tube, the shielding tube, and the second fiberglass tube are sequentially sleeved radially from the inside to the outside to form the sleeve body 1. The axial ends of the first and second fiberglass tubes are bonded together with adhesive to seal the shielding tube between the two fiberglass tubes. In this way, the protective sleeve is easy to manufacture, the sleeve body 1 has good expandability, and the shielding tube is still protected by the two fiberglass tubes without the risk of entanglement with multi-strand wire harnesses. It also eliminates the risk of metal debris falling into the equipment, such as the motor controller cavity, and causing short circuits and insulation failures.

[0028] To improve the sealing at the ends, in some embodiments, both axial ends of the shielding mesh are recessed within the ends of the first fiberglass layer 11 and the second fiberglass layer 13, and both ends of the first fiberglass layer 11 and the second fiberglass layer 13 have exposed joint sections that are fitted together. Alternatively, both the first fiberglass layer 11 and the second fiberglass layer 13 include a main body section and exposed joint sections located on both sides of the main body section along its axial direction. The shielding layer 12 is located between the inner and outer main body sections, and the inner and outer exposed joint sections at the same end of the first fiberglass layer 11 and the second fiberglass layer 13 are fitted together.

[0029] When the sleeve body 1 is composed of three layers of tubes sequentially sleeved together, the connection between the bare joints at both ends of the first and second fiberglass tubes can be achieved by bonding with an adhesive such as high-temperature resistant adhesive, or by thermoplastic connection.

[0030] Furthermore, one or both ends of the sleeve body 1 are provided with grounding pins 121 connected to the shielding layer 12. Grounding the shielding layer 12 improves the shielding effect. The grounding pins 121 can be connected to the shielding layer 12, such as by welding, or they can be an integral structure with the shielding layer 12. For example, the shielding layer 12 is a tube enclosed by a metal mesh, comprising a tubular section and a strip section integrally connected to the tubular section, with the strip section extending outside the sleeve body 1 to form the grounding pins 121. This simplifies the sleeve manufacturing process, and the pin length and number are easy to set and adjust according to requirements.

[0031] In some embodiments, the grounding pin 121 is covered with an insulating sleeve. When the grounding pin 121 is long, providing an insulating sleeve on its outer side can avoid the safety risks caused by exposed wiring. The insulating sleeve can specifically be insulating tape or heat shrink tubing.

[0032] In an embodiment where the sleeve body 1 is formed by a fiberglass tube and a shielding tube, since the shielding tube is a tube surrounded by a metal mesh, to enhance the convenience of fitting the mesh-like shielding tube onto the first fiberglass tube, a support ring is provided in the cavity to fit against the inner wall. The support rings are spaced apart along the axial direction of the tube body. Preferably, the support ring can be a fiberglass ring, made of the same material as the first and second fiberglass tubes, and the wall thickness of the support ring can be about 0.5 mm.

[0033] The wall thickness of the shielding layer 12, or the shielding tube, can be any value between 2 mm and 3 mm. Alternatively, the difference between the diameter of the first fiberglass layer 11 and the diameter of the second fiberglass layer 13 can be 2 mm to 3 mm. This prevents the shielding layer 12 from being too thin and damaged during the bending and routing of the wiring, while also preventing the shielding layer 12 from being too thick, which would result in a large wall thickness of the sleeve body 1, affecting the bending of the wire harness and thus hindering the wiring layout.

[0034] When the sleeve body 1 is fitted over the multi-strand wire harness, or in other words, when the multi-strand wire harness is inserted into the sleeve body 1, in order to prevent the sleeve body 1 from shifting relative to the multi-strand wire harness, in some embodiments, fasteners for fastening the sleeve body 1 and the multi-strand wire harness are provided at both axial ends of the sleeve body 1, and the fasteners are detachably connected to the sleeve body 1.

[0035] Specifically, the fastener includes a heat shrink tubing for wrapping around the end of the sleeve body 1 to bind the sleeve body 1 and the multi-strand wire harness together. Alternatively, the fastener includes clamps 2 fitted onto both ends of the sleeve body 1, and the outer wall of the sleeve body 1 is provided with positioning grooves 101 for the clamps 2 to be inserted. With this configuration, both structures can easily secure the sleeve body 1 and the numerous multi-strand wire harnesses together after they have been threaded through, preventing misalignment or slippage of the sleeve body 1 during subsequent wiring or line maintenance operations.

[0036] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0037] The components and devices described in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the accompanying drawings. As those skilled in the art will recognize, these components and devices can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the words “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0038] It should also be noted that in the apparatus and equipment of this application, the components can be disassembled and / or reassembled. These disassemblies and / or reassemblies should be considered as equivalent solutions of this application.

[0039] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0040] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A shielding protective sleeve, characterized in that, The device includes a sleeve body, the inner cavity of which is used to accommodate a multi-strand wire harness, and the sleeve body includes a first fiberglass layer, a shielding layer and a second fiberglass layer arranged sequentially from the inside to the outside. The first fiberglass layer, the shielding layer, and the second fiberglass layer are integrally connected, or at least the first fiberglass layer and the second fiberglass layer are sealed together at both ends along their axial direction.

2. The shielding protective sleeve as described in claim 1, characterized in that, The first fiberglass layer is a first fiberglass tube, the shielding layer is a shielding tube, the second fiberglass layer is a second fiberglass tube, and the first fiberglass tube, the shielding tube, and the second fiberglass tube are sequentially sleeved radially from the inside to the outside to form the sleeve body; Furthermore, the axial ends of the first and second fiberglass tubes are bonded together to seal the shielding tube between the two fiberglass tube bodies.

3. The shielding protective sleeve as described in claim 1, characterized in that, The sleeve body has a grounding pin at one or both ends along its axial direction that is connected to the shielding layer.

4. The shielding protective sleeve as described in claim 1, characterized in that, The shielding layer is a tube enclosed by a metal mesh. The tube includes a tubular section and a strip section integrally connected to the tubular section. The strip section extends out of the sleeve body to form a grounding pin.

5. The shielding protective sleeve as described in claim 3 or 4, characterized in that, The grounding pin is covered with an insulating sleeve.

6. The shielding protective sleeve as described in claim 2, characterized in that, The shielding tube is a tube body surrounded by a metal mesh, and the tube cavity is provided with support rings that fit against the inner wall. The support rings are arranged at intervals along the axial direction of the tube body.

7. The shielding protective sleeve as described in claim 1, characterized in that, The difference between the diameter of the first fiberglass layer and the diameter of the second fiberglass layer is 2 mm to 3 mm.

8. The shielding protective sleeve as described in claim 1, characterized in that, The sleeve body is provided with fasteners at both axial ends for securing the sleeve body and the multi-strand wire harness, and the fasteners are detachably connected to the sleeve body.

9. The shielding protective sleeve as described in claim 8, characterized in that, The fastener includes a heat shrink tubing for wrapping around the end of the sleeve body.

10. The shielding protective sleeve as described in claim 8, characterized in that, The fastener includes a clamp sleeved on the end of the sleeve body, and the outer wall of the sleeve body is provided with a positioning groove for the clamp to be inserted.

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