Heat-conducting silicone tube

By designing an insulating outer sheath, a clamping plate, and a multi-layer thermally conductive structure on the thermally conductive silicone tube, the problems of inconvenient installation and poor connection stability of existing thermally conductive silicone tubes are solved, achieving rapid fixation and efficient heat conduction, thereby improving the safety and service life of electrical equipment.

CN224264610UActive Publication Date: 2026-05-19DONGGUAN XINGJIA ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN XINGJIA ELECTRONIC TECH CO LTD
Filing Date
2025-06-07
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing thermally conductive silicone tubing is inconvenient to install in high-temperature environments and has poor connection stability, which affects the safe operation of electrical equipment.

Method used

A thermally conductive silicone tube comprising an insulating outer sheath, a clamping plate, a connecting sleeve, and a multi-layer thermally conductive structure is designed. The clamping plate and the arc-shaped connecting block enable quick fixation, the connecting sleeve provides a snap-fit ​​connection, and the multi-layer structure improves thermal conductivity and mechanical strength.

Benefits of technology

It simplifies the installation process, improves the stability and thermal conductivity of the connection, reduces the impact of thermal expansion and contraction on the connection, and extends the service life.

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Abstract

The utility model discloses a heat conduction silicone tube in the silicone tube field, which comprises a tube body, the surface of the tube body is sleeved with an insulating outer sheath, one end of the insulating outer sheath extends outwards to form two clamping plates, the two clamping plates are symmetrically arranged, a fixing clamp is formed between the two clamping plates, the two ends of the tube body are sleeved with connecting sleeves, and the connecting sleeves are connected with the insulating outer sheath. The surface of the connecting sleeve protrudes outwards and extends to form a plurality of arc-shaped connecting blocks, and the adjacent connecting blocks are arranged and distributed at equal intervals. According to the heat-conducting silicone tube, one end of the insulating outer sheath extends to form the two symmetrical clamping plates to form the fixing clamp used for achieving clamping, the heat-conducting silicone tube can be conveniently and rapidly fixed to an installation position, the stability of tube body connection is ensured, the arc-shaped connecting blocks arranged on the surface of the connecting sleeve can be connected with the installation position in a buckled mode, and the heat-conducting silicone tube is convenient to use. The installation convenience is improved, and the heat conduction silicone tube can be conveniently installed on the installation position.
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Description

Technical Field

[0001] This utility model relates to the field of silicone tubes, specifically a thermally conductive silicone tube. Background Technology

[0002] Thermally conductive silicone tubing acts as an insulating sleeve in high-temperature environments, providing insulation protection for wires in electrical equipment and ensuring safe operation of the equipment.

[0003] However, existing silicone tubing has some shortcomings in practical applications, mainly in terms of installation and connection stability: Existing thermally conductive silicone tubing typically lacks a dedicated installation structure, requiring additional tools or fasteners for installation, making the process cumbersome. For example, in some high-temperature electrical equipment, the installation space for wires is limited. Installing silicone tubing requires precisely threading the wires through the tubing and fixing them in designated positions, necessitating the use of flanges, connectors, and retaining rings for fastening, which increases the difficulty and time cost of installation. Existing silicone tubing connection structures are simple, relying mainly on the tubing's own elasticity to contact the wires or equipment components. In high-temperature environments, the silicone tubing changes shape and size due to thermal expansion and contraction, leading to loosening of the contact with the wires or equipment components and affecting connection stability. Furthermore, the elasticity of traditional silicone tubing gradually decreases after long-term use, further exacerbating the poor connection stability problem and potentially causing wire insulation failure, leading to safety hazards. Therefore, existing silicone tubing suffers from inconvenient installation and poor connection stability, requiring further improvement to meet the needs of more scenarios. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a thermally conductive silicone tube, which can effectively solve the technical problems of existing silicone tubes being inconvenient to install and having poor connection stability.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a thermally conductive silicone tube, including a tube body, an insulating outer sheath covering the surface of the tube body, one end of the insulating outer sheath extending outward to form two clamping plates, the two clamping plates being symmetrically arranged between each other, connecting sleeves covering both ends of the tube body, the surface of the connecting sleeves protruding outward to form several arc-shaped connecting blocks, the adjacent connecting blocks being equidistantly arranged.

[0006] Furthermore, the surface of the insulating outer sheath is provided with a plurality of grooves, which extend along the circumferential direction of the insulating outer sheath, and adjacent grooves are arranged at equal intervals.

[0007] Furthermore, the surface of the insulating outer sheath is recessed inward to form several positioning grooves, and adjacent positioning grooves are evenly distributed.

[0008] Furthermore, the tube body includes a first thermally conductive silicone layer, a graphite film layer, and a second thermally conductive silicone layer from the outside to the inside. The graphite film layer is in the shape of a flat S-shape, and the cavity of the S-shape is filled with a thermally conductive mud layer. A glass fiber cloth layer is disposed between the graphite film layer and the second thermally conductive silicone layer, and a thermally conductive reinforcement layer is disposed on the surface of the second thermally conductive silicone layer.

[0009] Furthermore, the thermally conductive enhancement layer includes equally spaced protrusions on the outer surface of the second thermally conductive silicone layer. The protrusions are in the shape of a regular square pyramid and are filled with a thermally conductive filler, which is a ceramic thermally conductive filler.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a thermally conductive silicone tube, in which two symmetrical clamping plates extend from one end of the insulating outer sheath to form a fixing clip for clamping, which facilitates the quick fixing of the thermally conductive silicone tube in the installation position and ensures the stability of the tube connection. The arc-shaped connecting block provided on the surface of the connecting sleeve can be snapped into the installation position, which improves the convenience of installation and makes it easy to install the thermally conductive silicone tube into the installation position. Attached Figure Description

[0011] Figure 1 This is a perspective view of a thermally conductive silicone tube according to the present invention.

[0012] Figure 2 This is a cross-sectional view of the tube body of a thermally conductive silicone tube according to this utility model.

[0013] Numbering on the map:

[0014] 1-Pipe body; 2-Insulating outer sheath; 3-Clamping plate; 4-Positioning groove; 5-Groove; 6-Connecting sleeve; 7-Connecting block; 8-First thermally conductive silicone layer; 9-Graphite film layer; 10-Glass fiber cloth layer; 11-Temperature conductive mud layer; 12-Second thermally conductive silicone layer; 13-Temperature conductive reinforcement layer. Detailed Implementation

[0015] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] The following is combined Figure 1 and Figure 2 A detailed description of a thermally conductive silicone tube according to this utility model is provided below:

[0017] A thermally conductive silicone tube includes a tube body 1. An insulating outer sheath 2 is fitted over the surface of the tube body 1. One end of the insulating outer sheath 2 extends outward to form two clamping plates 3, which are symmetrically arranged. Both ends of the tube body 1 are fitted with connecting sleeves 6. The surface of the connecting sleeves 6 protrudes outward to form several arc-shaped connecting blocks 7, which are equidistantly arranged between adjacent connecting blocks 7. The symmetrical clamping plates 3 formed by the extension of one end of the insulating outer sheath 2 enable quick snap-fit ​​fixing of the thermally conductive silicone tube to external equipment without the need for additional fasteners, simplifying the assembly process. The design of the insulating outer sheath 2 fully enclosing the tube body 1 effectively isolates the current conduction path, avoids the risk of short circuits, and meets the requirements for use in high-voltage environments. The connecting sleeves 6 and arc-shaped connecting blocks 7 fitted over both ends of the tube body 1 form a stepped snap-fit ​​structure, which facilitates the snap-fit ​​connection of the silicone tube to the corresponding installation position, making the installation of the silicone tube convenient and preventing easy detachment.

[0018] The surface of the insulating outer sheath 2 is provided with several grooves 5, which extend along the circumference of the insulating outer sheath 2. Adjacent grooves 5 are equidistantly distributed. The equidistant grooves 5 extending along the circumference of the outer sheath surface form heat dissipation channels, increase the contact area with air, accelerate heat dissipation, and reduce the working temperature of the tube body 1. The grooves 5 increase hand friction, making it easier to grip and apply force during installation and avoiding slippage-induced operational errors. The surface of the insulating outer sheath 2 is recessed inward to form several positioning grooves 4, which are equidistantly distributed. The equidistant grooves 5 extending along the circumference of the insulating outer sheath 2 are beneficial for heat dissipation. During installation and use, the grooves 5 can provide additional gripping force to prevent the tube body 1 from sliding. The insulating outer sheath 2 helps to buffer external mechanical impacts and protect the internal tube body 1.

[0019] The tube body 1 comprises, from the outside to the inside, a first thermally conductive silicone layer 8, a graphite film layer 9, and a second thermally conductive silicone layer 12. The graphite film layer 9 is flat and S-shaped, with a thermally conductive clay layer 11 filling the cavity of the S-shape. A glass fiber cloth layer 10 is disposed between the graphite film layer 9 and the second thermally conductive silicone layer 12. A thermally conductive reinforcing layer 13 is disposed on the surface of the second thermally conductive silicone layer 12. The thermally conductive reinforcing layer 13 includes equally spaced protrusions on the outer surface of the second thermally conductive silicone layer 12. The protrusions are in the shape of regular square pyramids. The protrusions are filled with thermally conductive filler, which is ceramic thermally conductive filler. The flat S-shaped graphite film layer 9 expands the heat conduction path through its meandering structure. Combined with the thermally conductive mud filling the gaps, it eliminates the thermal resistance bottleneck of traditional planar thermally conductive layers. The glass fiber cloth layer 10 serves as an intermediate support layer, which significantly improves the tensile and tear resistance of the tube body 1. The double-layer thermally conductive silicone provides flexible buffering, absorbs thermal expansion and contraction stress, and extends service life. The graphite film layer 9 replaces some metal thermally conductive components, reducing weight while ensuring thermal conductivity and meeting the requirements for lightweighting.

[0020] In this embodiment, the tube body 1 adopts a multi-layer structure design, including a first thermally conductive silicone layer 8, a graphite film layer 9, a thermally conductive mud layer 11, a glass fiber cloth layer 10, a second thermally conductive silicone layer 12, and a surface thermally conductive reinforcement layer 13. The graphite film layer 9 and the thermally conductive mud layer 11 improve the overall thermal conductivity, ensuring that heat can be conducted quickly. The glass fiber cloth layer 10 enhances the mechanical strength and heat resistance stability. The thermally conductive reinforcement layer 13 further improves the surface thermal conductivity efficiency. The flat S-shaped graphite film layer 9 design increases the length of the heat conduction path, improving the uniformity and efficiency of heat conduction. The square pyramidal protrusions of the thermally conductive reinforcement layer 13 are filled with ceramic thermally conductive filler. This design significantly improves the surface thermal conductivity and thermal radiation efficiency of the tube body 1. The ceramic thermally conductive filler has high thermal conductivity and can effectively conduct and dissipate heat. At the same time, the square pyramidal protrusion structure increases the contact area with the outside world, further promoting heat dissipation. The equally spaced protrusions can also evenly distribute the heat flow, avoid local overheating, and extend the service life of the thermally conductive silicone tube.

[0021] In this embodiment, a thermally conductive silicone tube has two symmetrical clamping plates 3 extending from one end of the insulating outer sheath 2 to form a fixing clamp for clamping, which facilitates the quick fixing of the thermally conductive silicone tube in the installation position and ensures the stability of the tube body 1 connection. The arc-shaped connecting block 7 provided on the surface of the connecting sleeve 6 can be snapped to the installation position, which improves the convenience of installation and makes it easy to install the thermally conductive silicone tube to the installation position.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat conductive silicone tube comprising a tube body, characterized in that: The surface of the tube is covered with an insulating outer sheath. One end of the insulating outer sheath extends outward to form two clamping plates. The two clamping plates are symmetrically arranged. Both ends of the tube are covered with connecting sleeves. The surface of the connecting sleeves protrudes outward to form several arc-shaped connecting blocks. Adjacent connecting blocks are evenly distributed.

2. The heat conductive silicone tube according to claim 1, wherein: The surface of the insulating outer sheath is provided with a number of grooves, which extend along the circumference of the insulating outer sheath, and adjacent grooves are evenly distributed.

3. The heat conductive silicone tube according to claim 1, wherein: The surface of the insulating outer sheath is recessed inward to form several positioning grooves, and adjacent positioning grooves are evenly distributed.

4. The heat conductive silicone tube according to any one of claims 1-3, characterized in that: The tube body includes a first thermally conductive silicone layer, a graphite film layer, and a second thermally conductive silicone layer from the outside to the inside. The graphite film layer is in the shape of a flat S-shape, and the cavity of the S-shape is filled with a thermally conductive mud layer. A glass fiber cloth layer is disposed between the graphite film layer and the second thermally conductive silicone layer, and a thermally conductive reinforcement layer is disposed on the surface of the second thermally conductive silicone layer.

5. The heat conductive silicone tube according to claim 4, wherein: The thermally conductive enhancement layer includes equally spaced protrusions on the outer surface of the second thermally conductive silicone layer. The protrusions are in the shape of a regular square pyramid and are filled with thermally conductive filler, which is a ceramic thermally conductive filler.