Connection device for high-voltage cables and cable connection

Abstract

The utility model belongs to high -voltage cable technical field, concretely relates to a kind of connecting device and cable connector for high -voltage cable, the device includes: annular connector, the first through channel and second channel of intercommunication are set in its center;The inside central portion of annular connector is provided with conical connecting position;Wherein the narrow taper surface of conical connecting position is same with the diameter of second through channel, and the wide taper surface of conical connecting position is same with the diameter of first through channel;By being provided with annular connector, by setting conical connecting position in the center of annular connector to connect two sections of diameter different through channel opened in annular connector, satisfy the cable of two sections of different diameter is connected.

Description

Technical Field

[0001] This utility model belongs to the field of high-voltage cable technology, specifically relating to connection devices and cable connectors for high-voltage cables. Background Technology

[0002] Due to the renovation of old power lines, it is often necessary to connect the ends of two cable segments during the renovation process. However, the diameter of the connection channel in the center of the existing cable connector is fixed, which is suitable for two cables with the same diameter. If the two cable segments have different diameters, the smaller diameter cable core will lack external support when using the existing connector, resulting in an unstable connection.

[0003] Therefore, a connection device and cable connector for high-voltage cables are designed to solve the technical problem of unstable connection caused by external gaps when small-diameter battery cells are inserted into the connection channel in the prior art.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0005] This disclosure provides at least one high-voltage cable connection device and cable connector.

[0006] In a first aspect, embodiments of this disclosure provide a connection device for high-voltage cables, comprising: A ring connector, with a first through channel and a second channel that are interconnected in the center; The annular connector has a tapered connection point in its center; wherein The diameter of the wide end of the tapered connector matches the diameter of the first through channel, and the diameter of the narrow end of the tapered connector is the same as the diameter of the second through channel.

[0007] In one alternative embodiment, a cable connector is provided inside the annular connector; The cable connector includes a tapered portion; wherein The wide conical surface of the conical portion is connected to the first cable connection portion, and the narrow conical surface of the conical portion is connected to the second cable connection portion; The tapered portion, the first cable connection portion, and the second cable connection portion are all made of insulating material.

[0008] In one optional embodiment, a first wire core insertion position is provided in the center of the first cable connection portion; The second cable connector has a second core insertion position in the center; wherein The first wire core insertion position and the second wire core insertion position are connected.

[0009] In one alternative embodiment, the ring connector includes a ring-shaped insulating layer; An annular shielding layer is fitted onto the outer wall of the annular insulating layer; A shielding tube is fitted over the outside of the cable connector, and the length of the shielding tube is greater than that of the cable connector; wherein... One end of the shielding tube is inserted into the annular insulating layer outside the second through-channel.

[0010] In one optional embodiment, both ends of the annular connector are provided with joint stress cones; The stress cone of the joint is made of rubber.

[0011] Secondly, embodiments of this disclosure provide a cable connector, including: Conical part; in which The wide conical surface of the conical portion is connected to the first cable connection portion, and the narrow conical surface of the conical portion is connected to the second cable connection portion; The tapered portion, the first cable connection portion, and the second cable connection portion are all made of insulating material.

[0012] In one optional embodiment, a first wire core insertion position is provided in the center of the first cable connection portion; The second cable connector has a second core insertion position in the center; wherein The first wire core insertion position and the second wire core insertion position are connected.

[0013] The beneficial effect of this utility model is that this device is equipped with a ring connector, and a tapered connection position is set in the center of the ring connector to connect two through channels with different diameters opened in the ring connector, so as to meet the connection of two cables with different diameters.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the internal structure of the ring connector provided in an embodiment of this disclosure; Figure 2 This is a schematic diagram showing the connection and mating of a ring connector with two cable segments according to an embodiment of this disclosure.

[0018] In the picture: 1. Ring connector; 10. Cable connector; 100. Tapered portion; 101. First cable connection portion; 102. Second cable connection portion; 103. First core insertion position; 104. Second core insertion position; 11. Ring insulation layer; 12. Shielding tube; 13. First through channel; 14. Second through channel; 15. Tapered connection position; 16. Joint stress cone; 17. Ring shielding layer.

[0019] 2. First cable; 20. First battery cell; 21. First insulation layer; 22. First semiconducting layer; 3. Second cable; 30. Second battery core; 31. Second insulation layer; 32. Second semiconducting layer. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0022] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0023] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0024] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0025] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0026] Research has revealed that due to the renovation of old power lines, it is often necessary to connect the ends of two cable segments during the renovation process. However, the diameter of the central connection channel of existing cable connectors is fixed, which is suitable for two cable segments with the same diameter. If the two cable segments have different diameters, it is difficult to effectively connect the two cable segments using existing cable connectors.

[0027] Based on the above research, this disclosure provides a connection device and cable connector for high-voltage cables. By providing a ring connector and a tapered connection position in the center of the ring connector to connect two through channels with different diameters inside the ring connector, it can meet the requirement of connecting two cables with different diameters.

[0028] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] In some embodiments, such as Figure 1 and Figure 2 As shown, for two cables 2 and 3 of different diameters, the operator peels off the insulation layers (21, 31) at the ends of the two cables that need to be connected, exposing the first battery cell 20 and the second battery cell 30. The two battery cells (20, 30) are then inserted from both ends of the ring connector 1 to form a connection as shown. Figure 1 In the state shown, the diameter of the first through channel 13 matches the diameter of the first insulation layer 21 in the first cable 2, and the diameter of the second through channel 14 matches the diameter of the second insulation layer 31 in the second cable 3. Two battery cores (20, 30) with different diameters are respectively inserted into the first battery core insertion position and the second battery core insertion position 104 in the cable connector 10 and connected inside the tapered part 100. A transition crimping sleeve can be provided inside the tapered part 100. After the first battery core 20 and the second battery core 30 are inserted, they are fixed by hydraulic crimping. In some embodiments, such as Figure 2As shown, the shielding tube 12 is located in the center of the ring connector 1 and the cable connector 10 is located in the center of the shielding tube 12. When the two battery cores (20, 30) are connected, the shielding tube 12 is at a high potential. As shown in the figure, the part of the shielding tube 12 outside the second battery core 30 (i.e. the smaller diameter cable core of the two cable segments) is inserted into the annular insulating layer 11 of the ring connector 1 and wrapped by insulating material, which directly extends the distance between the high potential and the ground and reduces the risk of internal creepage. The joint stress cones 16 inside both ends of the ring connector 1 are made of rubber material, preferably silicone rubber, and the joint stress cones 16 are conical in shape. Their inclined surfaces guide the electric field lines from high potential to low potential, avoiding electric field concentration that could lead to partial discharge or breakdown.

[0032] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0034] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0035] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A connecting device for high-voltage cables, characterized in that, include: A ring connector (1) has a tapered connection position (15) in its middle part; The annular connector (1) has a first through channel (13) and a second through channel (14) that are interconnected inside. The wide end diameter of the tapered connector (15) matches the diameter of the first through channel (13), and the narrow end diameter of the tapered connector (15) is the same as the diameter of the second through channel (14).

2. The high-voltage cable connection device as described in claim 1, characterized in that, The annular connector (1) is provided with a cable connector (10) inside. The cable connector (10) includes a tapered portion (100); wherein The wide conical surface of the conical portion (100) is connected to the first cable connection portion (101), and the narrow conical surface of the conical portion (100) is connected to the second cable connection portion (102). The tapered portion (100), the first cable connection portion (101), and the second cable connection portion (102) are all made of insulating material.

3. The high-voltage cable connection device as described in claim 2, characterized in that, The first cable connection part (101) has a first wire core insertion position (103) in the center. The second cable connector (102) has a second core insertion position (104) in the center; wherein The first wire core insertion position (103) and the second wire core insertion position (104) are connected.

4. The high-voltage cable connection device as described in claim 3, characterized in that, The ring connector (1) includes a ring insulating layer (11). An annular shielding layer (17) is fitted onto the outer wall of the annular insulating layer (11); A shielding tube (12) is fitted over the outside of the cable connector (10), and the length of the shielding tube (12) is greater than that of the cable connector (10); wherein One end of the shielding tube (12) is inserted into the annular insulating layer (11) outside the second through channel (14).

5. The high-voltage cable connection device as described in claim 1, characterized in that, Both ends of the ring connector (1) are provided with joint stress cones (16). The stress cone (16) of the joint is made of rubber.

6. A cable connector, characterized in that, include: Conical part (100); wherein The wide conical surface of the conical portion (100) is connected to the first cable connection portion (101), and the narrow conical surface of the conical portion (100) is connected to the second cable connection portion (102). The tapered portion (100), the first cable connection portion (101), and the second cable connection portion (102) are all made of insulating material.

7. The cable connector as described in claim 6, characterized in that, The first cable connection part (101) has a first wire core insertion position (103) in the center. The second cable connector (102) has a second core insertion position (104) in the center; wherein The first wire core insertion position (103) and the second wire core insertion position (104) are connected.

Images