Self-heating device for cable terminal, self-heating cable terminal assembly and cable

Abstract

A self-heating cable termination assembly is disclosed, the self-heating cable termination assembly comprising: a cable termination; the self-heating device comprises a breathable heating bag, the outer side of the cable terminal is wrapped with the heating bag, and the heating bag is filled with a self-heating material; and the sealing film covers the outer side of the heating bag so as to be used for sealing the heating bag. A cable and a self-heating device for a cable terminal are also disclosed.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to a self-heating cable terminal assembly, a cable including the self-heating cable terminal assembly, and a self-heating device for a cable terminal. Background Art

[0002] Cable terminals are made of elastomeric materials, commonly silicone rubber, injection-vulcanized and factory-molded. They are then expanded and lined with plastic spiral supports to form various cable accessories. During on-site installation, these pre-expanded components are slipped over the treated cable ends or joints. The internal plastic spiral supports are then removed and pressed against the cable insulation to form the cable accessory. However, the material thickness and operating temperature of the cable terminal can affect the electrical performance of the entire cable terminal. Therefore, cable terminal suppliers generally require an installation temperature above 5°C (especially for cold-shrink cable terminals) to ensure optimal electrical performance. However, in northern China and other cold climate regions, cable terminals sometimes need to be installed at temperatures below 5°C. This can result in insufficient interface pressure immediately after installation, leading to cable terminal failure during testing or circuit operation. Utility Model Content

[0003] An object of the present disclosure is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to an embodiment of one aspect of the present disclosure, a self-heating cable terminal assembly is provided, comprising: a cable terminal; and a self-heating device, the self-heating device comprising: a breathable heating bag, the heating bag being wrapped around the outside of the cable terminal and filled with a self-heating material; and a sealing film, the sealing film covering the outside of the heating bag for sealing the heating bag.

[0005] According to an exemplary embodiment of the present disclosure, the self-heating device further includes an aluminum foil, which is located between the cable terminal and the heating bag and wrapped around the outside of the cable terminal.

[0006] According to an exemplary embodiment of the present disclosure, the heating bag is elongated, and the cable terminal has a main body and a plurality of skirts formed on the outer surface of the main body, the plurality of skirts being spaced apart from each other along the axial direction of the main body, wherein the heating bag is wrapped around the outside of a portion between two adjacent skirts of the main body.

[0007] According to an exemplary embodiment of the present disclosure, the self-heating material is selected from one of powder, activated carbon, salt and sawdust.

[0008] According to an exemplary embodiment of the present disclosure, the sealing film is made of plastic.

[0009] According to an exemplary embodiment of the present disclosure, the heating bag is a woven bag.

[0010] According to another aspect of the present disclosure, a cable is provided, comprising the self-heating cable terminal assembly as described above.

[0011] According to an embodiment of yet another aspect of the present disclosure, a self-heating device for a cable terminal is provided, comprising: a breathable heating bag filled with a self-heating material, the heating bag being used to wrap around the outside of the cable terminal; and a sealing film wrapped around the outer surface of the heating bag to seal the heating bag.

[0012] According to an exemplary embodiment of the present disclosure, the self-heating device further includes an aluminum foil, which is configured to be located between the cable terminal and the heating bag and wrapped around the outside of the cable terminal.

[0013] According to an exemplary embodiment of the present disclosure, the heating bag is elongated, and the cable terminal has a main body and a plurality of skirts formed on the outer surface of the main body, the plurality of skirts being spaced apart from each other along the axial direction of the main body, wherein the heating bag is wrapped around the outside of a portion between two adjacent skirts of the main body.

[0014] The self-heating cable terminal assembly described in the various embodiments of the present disclosure can heat the cable terminal by heating the self-heating material within the heating bag, thereby enabling the cable terminal to achieve its desired properties, such as stretch ratio, sufficient cable interface stress, and good electrical performance, without the need for an additional heating device. The cable terminal assembly can be installed in cold weather conditions (e.g., temperatures below 5°C), thereby expanding the product's application range. Furthermore, the self-heating cable terminal assembly is easy to install and does not increase on-site workload.

[0015] Other objects and advantages of the present disclosure will become apparent from the following description of the present disclosure with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a self-heating cable terminal assembly according to an exemplary embodiment of the present disclosure.

[0017] Figure 2 It is a structural schematic diagram of a cable terminal according to an exemplary embodiment of the present disclosure.

[0018] Figure 3 4 is a schematic structural diagram of a heating bag according to an exemplary embodiment of the present disclosure.

[0019] Figure 4 It is a structural schematic diagram of a self-heating device for a cable terminal according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0020] While the present invention will be fully described with reference to the accompanying drawings that contain preferred embodiments of the present invention, it should be understood before this description that one of ordinary skill in the art may modify the present invention described herein while still achieving the technical benefits of the present invention. Therefore, it should be understood that the above description is intended to be a broad disclosure to one of ordinary skill in the art and is not intended to limit the present invention to the exemplary embodiments described herein.

[0021] In addition, in the following detailed description, for ease of explanation, numerous specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments can be practiced without these specific details. In other cases, well-known structures and devices are shown in diagrammatic form to simplify the accompanying drawings.

[0022] According to the general inventive concept of the present disclosure, a self-heating cable terminal assembly is provided, comprising: a cable terminal; and a self-heating device, wherein the self-heating device comprises: a breathable heating bag, the heating bag being wrapped around the outside of the cable terminal and filled with a self-heating material; and a sealing film, the sealing film covering the outside of the heating bag for sealing the heating bag.

[0023] like Figure 1As shown, a self-heating cable terminal assembly according to an exemplary embodiment of the present disclosure includes a cable terminal 10, a heating bag 20, and a sealing film 30. The heating bag 20 is wrapped around the outside of the cable terminal 10 and is air-permeable. It is filled with a self-heating material such as powder, activated carbon, salt, or sawdust. The sealing film 30 covers the outside of the heating bag 20 to seal the heating bag 20, thereby preventing air from entering the heating bag 20. During use, after the self-heating cable terminal assembly according to the present disclosure is installed in place, the sealing film 30 on the outside of the heating bag 20 is removed to allow air to enter the heating bag 20. The air entering the heating bag 20 fully contacts the self-heating material in the heating bag 20 to generate heat, thereby heating the cable terminal 10. The self-heating cable terminal assembly described in the various embodiments of the present disclosure can heat the cable terminal by heating the self-heating material within the heating bag, thereby enabling the cable terminal to achieve its desired properties, such as stretch ratio, sufficient cable interface stress, and good electrical performance, without the need for an additional heating device. The cable terminal assembly can be installed in cold weather conditions (e.g., temperatures below 5°C), thereby expanding the product's application range. Furthermore, the self-heating cable terminal assembly is easy to install and does not increase on-site workload.

[0024] In some embodiments, as Figure 1 As shown, the self-heating cable terminal assembly further includes an aluminum foil 40, which is positioned between the cable terminal 10 and the heating bag 20 and wrapped around the outside of the cable terminal 10. According to the self-heating cable terminal assembly of the present disclosure, by providing the aluminum foil 40 between the cable terminal 10 and the heating bag 20, the heat generated by the self-heating material in the heating bag 20 can be uniformly and quickly transferred to the entire cable terminal 10 via the aluminum foil 40, thereby uniformly heating the entire cable terminal 10.

[0025] In an exemplary embodiment, Figure 1 and Figure 3 As shown, the heating bag 20 is elongated and can be assembled onto the cable terminal 10 by wrapping it around the heating bag. However, it should be noted that in other embodiments of the present disclosure, the heating bag 20 can also adopt other suitable shapes, such as a plate shape. In this case, in order to place the self-heating material in the heating bag 20 more evenly, the interior of the heating bag 20 can be pressed together along several straight lines to form a plurality of small cells, each of which can be filled with the self-heating material.

[0026] In an exemplary embodiment, Figure 2As shown, the cable terminal 10 comprises a main body 11 and a plurality of skirt portions 12 formed on the outer surface of the main body 11, wherein the plurality of skirt portions 12 are spaced apart from each other along the axial direction of the main body 11, wherein the elongated heating bag 20 can be wrapped only around the outer side of the portion between two adjacent skirt portions 12 of the main body 11, so as to be more closely attached to the cable terminal 10, thereby improving the heat transfer efficiency.

[0027] In this embodiment, the self-heating material can be selected from the group consisting of powder, activated carbon, salt and sawdust. However, in some other embodiments of the present disclosure, the self-heating material can also be selected from other suitable self-heating materials known to those skilled in the art.

[0028] In this embodiment, the sealing film 30 is made of plastic, such as a polyimide film, and has a thickness of about 3 μm to 5 μm. It should be noted that in some other embodiments of the present disclosure, the sealing film 30 can also be made of other airtight materials. In addition, in this embodiment, the heating bag 20 is a woven bag. It should be noted that in some other embodiments of the present disclosure, the heating bag 20 can also be made of other materials or other methods, but it should be ensured that air can enter the heating bag 20 to react with the self-heating material in the heating bag 20 to release heat, while ensuring that the self-heating material of the heating bag 20 does not leak.

[0029] According to another aspect of the present disclosure, a cable is provided. The cable includes the self-heating cable terminal assembly as described above.

[0030] According to another aspect of the present disclosure, Figure 4 As shown, a self-heating device for a cable terminal 10 is also provided. The self-heating device includes a breathable heating bag 20 and a sealing film (not shown). The heating bag 20 is filled with a self-heating material such as powder, activated carbon, salt, and sawdust. The sealing film 30 is wrapped around the outer surface of the heating bag 20 to seal the heating bag 20. During on-site assembly, the sealing film is first removed from the outer surface of the heating bag 20, and then the heating bag 20 is wrapped around the outer side of the cable terminal 10. Since the sealing film is removed, air from the surrounding environment can enter the heating bag 20 and fully contact the self-heating material inside the heating bag 20, generating heat to heat the cable terminal 10.

[0031] In an exemplary embodiment, the self-heating device further includes an aluminum foil 40. Before wrapping the heating bag 20 on the cable terminal 10, the aluminum foil 40 is wrapped around the outside of the cable terminal 10. In this way, the heat generated by the self-heating material can be evenly and quickly transferred to the entire cable terminal 10 through the aluminum foil 40 disposed between the cable terminal 10 and the heating bag 20.

[0032] In an exemplary embodiment, Figure 3 As shown, the heating bag 20 is elongated and can be assembled onto the cable terminal 10 by wrapping it around the heating bag. However, it should be noted that in other embodiments of the present disclosure, the heating bag 20 can also adopt other suitable shapes, such as a plate shape. In this case, in order to place the self-heating material in the heating bag 20 more evenly, the interior of the heating bag 20 can be pressed together along several straight lines to form a plurality of small cells, each of which can be filled with the self-heating material.

[0033] In an exemplary embodiment, Figure 2 As shown, the cable terminal 10 comprises a main body 11 and a plurality of skirt portions 12 formed on the outer surface of the main body 11, wherein the plurality of skirt portions 12 are spaced apart from each other along the axial direction of the main body 11, wherein the elongated heating bag 20 can be wrapped only around the outer side of the portion between two adjacent skirt portions 12 of the main body 11, so as to be more closely attached to the cable terminal 10, thereby improving the heat transfer efficiency.

[0034] In this embodiment, the self-heating material can be selected from the group consisting of powder, activated carbon, salt and sawdust. However, in some other embodiments of the present disclosure, the self-heating material can also be selected from other suitable self-heating materials known to those skilled in the art.

[0035] In this embodiment, the sealing film 30 is made of plastic, such as a polyimide film, and has a thickness of about 3 μm to 5 μm. It should be noted that in some other embodiments of the present disclosure, the sealing film 30 can also be made of other airtight materials. In addition, in this embodiment, the heating bag 20 is a woven bag. It should be noted that in some other embodiments of the present disclosure, the heating bag 20 can also be made of other materials or other methods, but it should be ensured that air can enter the heating bag 20 to react with the self-heating material in the heating bag 20 to release heat, while ensuring that the self-heating material of the heating bag 20 does not leak.

[0036] Those skilled in the art will appreciate that the embodiments described above are exemplary and that they may be improved upon. The structures described in the various embodiments may be freely combined without causing any conflict in structure or principle.

[0037] After describing the preferred embodiments of the present invention in detail, those skilled in the art will clearly understand that various changes and modifications may be made without departing from the scope and spirit of the appended claims, and that the present invention is not limited to the exemplary embodiments described in the specification.

Claims

1. A self-heating cable terminal assembly, characterized in that: The self-heating cable terminal assembly comprises: Cable terminations; and A self-heating device, comprising: a breathable heating bag, the heating bag being wrapped around the outside of the cable terminal and filled with a self-heating material; and A sealing film covers the outer side of the heating bag to seal the heating bag.

2. The self-heating cable terminal assembly according to claim 1, characterized in that: The self-heating device further comprises an aluminum foil, which is located between the cable terminal and the heating bag and wrapped around the outside of the cable terminal.

3. The self-heating cable terminal assembly according to claim 2, characterized in that: The heating bag is elongated, and the cable terminal has a main body and a plurality of skirts formed on the outer surface of the main body, the plurality of skirts being spaced apart from each other in the axial direction of the main body, wherein the heating bag is wrapped around the outside of a portion between two adjacent skirts of the main body.

4. The self-heating cable terminal assembly according to any one of claims 1 to 3, characterized in that: The self-heating material is selected from one of powder, activated carbon, salt and sawdust.

5. The self-heating cable terminal assembly according to any one of claims 1 to 3, characterized in that: The sealing film is made of plastic.

6. The self-heating cable terminal assembly according to any one of claims 1 to 3, characterized in that: The heating bag is a woven bag.

7. A cable, characterized in that: The cable comprises the self-heating cable termination assembly according to any one of claims 1 to 6.

8. A self-heating device for a cable terminal, characterized in that: The self-heating device comprises: a breathable heating bag filled with a self-heating material, the heating bag being used to wrap around the outside of the cable terminal; and A sealing film is wrapped around the outer surface of the heating bag to seal the heating bag.

9. The self-heating device according to claim 8, characterized in that The self-heating device also includes: Aluminum foil is configured to be located between the cable terminal and the heating bag and wrapped around the outside of the cable terminal.

10. The self-heating device according to claim 8 or 9, characterized in that: The heating bag is elongated, and the cable terminal has a main body and a plurality of skirts formed on the outer surface of the main body, the plurality of skirts being spaced apart from each other in the axial direction of the main body, wherein the heating bag is wrapped around the outside of a portion between two adjacent skirts of the main body.

Images