Outdoor cable terminal and vehicle

Abstract

The utility model provides an outdoor cable terminal and a vehicle, and belongs to the technical field of cable terminals. The outdoor cable terminal comprises a cable and a double-layer sleeve. Wherein the double-layer sleeve comprises a first sleeve and a second sleeve, the second sleeve is sleeved with the first sleeve, and the cable is sleeved with the second sleeve. The first sleeve and the second sleeve are connected through a coupling agent. The vehicle comprises a vehicle body and the outdoor cable terminal. Wherein the outdoor cable terminal is located at the top of the vehicle body, and the outdoor cable terminal is electrically connected with the vehicle body. Therefore, the structure of the outdoor cable terminal can be improved, and the cable is protected by adopting the double-layer sleeve, so that sufficient rigidity of a product can be ensured, and meanwhile, the situation that peripheral equipment is damaged due to splash generated when the outdoor cable terminal is impacted can be effectively avoided. In addition, a certain creepage distance can be increased.

Description

Technical Field

[0001] The present application relates to the technical field of cable terminals, and in particular to an outdoor cable terminal and a vehicle. Background Art

[0002] With the continuous improvement of my country's transportation industry, rail transit locomotives have ushered in a golden period of construction and development. Among them, outdoor cable terminals are an important part of the traction power supply system of rail transit locomotives, and their reliability directly affects the safe operation of rail transit locomotives. As an important connector between cables and overhead lines, the reliability of outdoor cable terminals directly affects the reliability of rail transit locomotives.

[0003] Among them, the outdoor cable terminal can evenly distribute the electric field at the end of the cable and realize effective control of electric stress. Electric stress control refers to the control of the electric field distribution and electric field strength, taking appropriate measures to make the electric field distribution and electric field strength in the best state, making the electric field distribution as uniform as possible, and improving the reliability of cable operation. The main structure of the conventional internal insulation outdoor cable terminal is composed of epoxy resin casing, stress cone, cone support assembly, mounting flange and tail pipe, which is usually installed on the top of rail transit locomotive vehicles to achieve electrical connection.

[0004] However, the epoxy resin casing used in the current outdoor cable terminals is made of brittle materials, and splashes may be generated when the outdoor cable terminals are hit, thereby damaging the surrounding equipment. In addition, the weather resistance of epoxy resin materials is poor, and it is easy to produce flashover. This has a great impact on the performance of the cable, and then affects the stability of the entire rail transit locomotive. Utility Model Content

[0005] The present application provides an outdoor cable terminal and a vehicle, which improves the structure of the outdoor cable terminal and uses a double-layer casing to protect the cable, thereby ensuring that the product has sufficient rigidity and effectively preventing splashes from being generated when the outdoor cable terminal is hit, thereby damaging surrounding equipment. In addition, a certain creepage distance can also be increased.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] The first aspect of the present application provides an outdoor cable terminal, comprising:

[0008] cable;

[0009] A double-layer casing, the double-layer casing comprises a first casing and a second casing, the first casing is sleeved on the second casing, and the second casing is sleeved on the cable;

[0010] The first sleeve and the second sleeve are connected via a coupling agent.

[0011] Based on the above technical solution, the present application can also be improved as follows.

[0012] In a possible implementation, the first sleeve is made of hard silicone rubber.

[0013] In a possible implementation manner, the second sleeve is made of epoxy resin.

[0014] In a possible implementation, a channel is opened in the second sleeve, and the cable can be passed through the channel so that the cable is vertically located in the second sleeve.

[0015] In a possible implementation, the outdoor cable terminal further includes: a stress cone;

[0016] The stress cone is located between the second sleeve and the cable, and the stress cone is sleeved on the cable.

[0017] In a possible implementation, the outdoor cable terminal further includes: a tail pipe;

[0018] The tail pipe is located at one end of the double-layer casing, and the tail pipe is sleeved on the cable.

[0019] In a possible implementation, the outdoor cable terminal further includes: a cone support assembly;

[0020] The cone support assembly is located outside the stress cone, and the cone support assembly is located above the tail pipe;

[0021] The cone support assembly is used to support the stress cone.

[0022] In a possible implementation, the outdoor cable terminal further includes: a fixing member;

[0023] The fixing member is located on the tail pipe, and is used to fix the tail pipe.

[0024] In a possible implementation, the outdoor cable terminal further includes: a spring device;

[0025] The spring device is located below the stress cone, and the spring device is located outside the cable;

[0026] A spring device is used to maintain interface pressure with the cable.

[0027] A second aspect of the present application provides a vehicle, comprising a vehicle body and the above-mentioned outdoor cable terminal;

[0028] The outdoor cable terminal is located on the top of the vehicle body, and the outdoor cable terminal is electrically connected to the vehicle body.

[0029] The present application provides an outdoor cable terminal and a vehicle, wherein the outdoor cable terminal includes a cable and a double-layer casing. The double-layer casing includes a first casing and a second casing, wherein the first casing is sleeved on the second casing, and the second casing is sleeved on the cable. The first casing and the second casing are connected by a coupling agent. The vehicle includes a vehicle body and the above-mentioned outdoor cable terminal. The outdoor cable terminal is located on the top of the vehicle body, and the outdoor cable terminal is electrically connected to the vehicle body. In this way, the present application can improve the structure of the outdoor cable terminal and use a double-layer casing to protect the cable, thereby ensuring that the product has sufficient rigidity, and can effectively avoid the generation of splashes when the outdoor cable terminal is hit, thereby damaging surrounding equipment. In addition, a certain creepage distance can also be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 A schematic diagram of the structure of an outdoor cable terminal provided in one embodiment of the present application.

[0032] Description of reference numerals:

[0033] 100-Outdoor cable terminal;

[0034] 200-cable;

[0035] 300-Double-layer casing;

[0036] 310-first sleeve; 320-second sleeve; 321-channel;

[0037] 400-stress cone;

[0038] 500-tail pipe;

[0039] 600-cone support assembly;

[0040] 700-fixing parts;

[0041] 800 - Spring device. DETAILED DESCRIPTION

[0042] As described in the background technology, the epoxy resin sleeves used in the current outdoor cable terminals are made of brittle materials. When the outdoor cable terminals are hit, splashes may be generated, thereby damaging the surrounding equipment. In addition, the epoxy resin material has poor weather resistance and is prone to flashover. This has a great impact on the performance of the cable, and further affects the stability of the entire rail transit locomotive.

[0043] In view of the above technical problems, an embodiment of the present application provides an outdoor cable terminal and a vehicle, wherein the outdoor cable terminal includes a cable and a double-layer casing. The double-layer casing includes a first casing and a second casing, the first casing is sleeved on the second casing, and the second casing is sleeved on the cable. The first casing and the second casing are connected by a coupling agent. The vehicle includes a vehicle body and the above-mentioned outdoor cable terminal. The outdoor cable terminal is located on the top of the vehicle body, and the outdoor cable terminal is electrically connected to the vehicle body. In this way, the present application can improve the structure of the outdoor cable terminal and use a double-layer casing to protect the cable, thereby ensuring that the product has sufficient rigidity, and at the same time can effectively avoid the generation of splashes when the outdoor cable terminal is hit, thereby damaging surrounding equipment. In addition, a certain creepage distance can also be increased.

[0044] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.

[0045] The embodiment of the present application provides an outdoor cable terminal and a vehicle. By improving the structure of the outdoor cable terminal and using a double-layer casing to protect the cable, it can ensure that the product has sufficient rigidity and effectively prevent splashes from being generated when the outdoor cable terminal is hit, thereby damaging surrounding equipment. In addition, a certain creepage distance can also be increased. The specific structure of the outdoor cable terminal and the vehicle provided in the embodiment of the present application is introduced below in conjunction with the accompanying drawings.

[0046] refer to Figure 1In a first aspect, an embodiment of the present application provides an outdoor cable terminal 100. In the embodiment of the present application, the outdoor cable terminal 100 may include a cable 200 and a double-layer casing 300. In a possible implementation, the double-layer casing 300 may include a first casing 310 and a second casing 320, the first casing 310 may be sleeved on the second casing 320, and the second casing 320 may be sleeved on the cable 200. It is understood that the positions of the first casing 310 and the second casing 320 are not limited. In some other embodiments, the second casing 320 may be sleeved on the first casing 310, and the first casing 310 may be sleeved on the cable 200. In the embodiment of the present application, the first casing 310 is sleeved on the second casing 320 as an example, and the double-layer casing 300 can further protect the cable 200. In one possible implementation, the first sleeve 310 and the second sleeve 320 may be connected via a coupling agent, so that the first sleeve 310 can be attached to the surface of the second sleeve 320 , thereby ensuring the safety of the cable 200 .

[0047] Continue to refer Figure 1 In the specific implementation of this embodiment, in one possible implementation, the first sleeve 310 can be made of hard silicone rubber. It can be understood that the first sleeve 310 made of hard silicone rubber can have good weather resistance and can also ensure that the entire outdoor cable terminal 100 has sufficient rigidity.

[0048] Continue to refer Figure 1 Based on the above embodiment, in a possible implementation, the second sleeve 320 can be made of epoxy resin. It is understandable that the second sleeve 320 made of epoxy resin can have good electrical insulation performance and can provide good insulation protection for the cable 200.

[0049] On the basis of the above-mentioned embodiment, since the epoxy resin material is a brittle material, when the outdoor cable terminal 100 is hit outdoors, it is easy to produce fragments and splash, thereby damaging the surrounding equipment. In the embodiment of the present application, the first sleeve 310 is combined with the second sleeve 320. Since the first sleeve 310 has sufficient rigidity, it can effectively prevent the outdoor cable terminal 100 from being hit and producing splashes. Of course, in some embodiments, the first sleeve 310 can be made of other insulating rubber materials. For example, the first sleeve 310 can also be made of EPDM rubber, and the second sleeve 320 can also be made of other materials. The embodiment of the present application is not limited here.

[0050] Continue to refer Figure 1On the basis of the above embodiment, in a possible implementation, a channel 321 may be provided in the second sleeve 320. The channel 321 allows the cable 200 to pass through, so that the cable 200 can be vertically located in the second sleeve 320, which can play a certain guiding role. It can be understood that the size of the channel 321 can be greater than or equal to the size of the cable 200, so that the cable 200 can pass through the channel 321 of the second sleeve 320.

[0051] Continue to refer Figure 1 On the basis of the above embodiment, the outdoor cable terminal 100 may further include: a stress cone 400. The stress cone 400 may be located inside the second sleeve 320. In a possible implementation, the stress cone 400 may be located between the second sleeve 320 and the cable 200, and the stress cone 400 may be sleeved on the cable 200 and located at one end of the cable 200. It is understood that the stress cone 400 may be used to increase the insulation shielding diameter of the cable 200, thereby controlling the electric field strength in the entire outdoor cable terminal 100 within a specified design range.

[0052] Continue to refer Figure 1 On the basis of the above embodiment, in a possible implementation, the stress cone 400 can be made of soft silicone rubber. It is understandable that the stress cone 400 can be matched with the first sleeve 310 and the second sleeve 320, so as to be more convenient to install.

[0053] Continue to refer Figure 1 On the basis of the above embodiment, the outdoor cable terminal 100 may further include: a tail tube 500. The tail tube 500 may be located at one end of the double-layer casing 300, and the tail tube 500 may also be sleeved on the cable 200. In a possible implementation, the double-layer casing 300 may be connected to the tail tube 500, and both the double-layer casing 300 and the tail tube 500 may protect the cable 200. It is understandable that the tail tube 500 may play a certain supporting role for the double-layer casing 300.

[0054] Continue to refer Figure 1 On the basis of the above embodiment, the outdoor cable terminal 100 may further include: a cone support assembly 600. The cone support assembly 600 may be located outside the stress cone 400, and the cone support assembly 600 may be located above the tail pipe 500. In a possible implementation, the cone support assembly 600 may be located between the second sleeve 320 and the tail pipe 500. The cone support assembly 600 may be used to support the stress cone 400.

[0055] Continue to refer Figure 1On the basis of the above embodiment, the outdoor cable terminal 100 may further include: a fixing member 700. The fixing member 700 may be located on the tail pipe 500, and the fixing member 700 may be used to fix the tail pipe 500, thereby facilitating the installation and fixation of the tail pipe 500. In a possible implementation, the fixing member 700 may be a flange. The flange generally has good support stability and can adapt to different environmental requirements.

[0056] Continue to refer Figure 1 On the basis of the above embodiment, the outdoor cable terminal 100 may further include: a spring device 800. The spring device 800 may be located below the stress cone 400, and the spring device 800 may be located outside the cable 200. In a possible implementation, one end of the spring device 800 may be connected to the stress cone 400, and the other end of the spring device 800 may be inserted into the tail tube 500. It can be understood that the spring device 800 can be used to maintain the interface pressure with the cable 200 to avoid the generation of partial discharge. The spring device 800 can provide a certain stress to the stress cone 400, so that the interface pressure between the double-layer casing 300 and the stress cone 400 and between the stress cone 400 and the cable 200 remains stable, so that the entire outdoor cable terminal 100 has good stability.

[0057] On the basis of the above-mentioned embodiments, the second aspect of the present application provides a vehicle (not shown in the figure), which may include a vehicle body (not shown in the figure) and the above-mentioned outdoor cable terminal 100. Among them, the vehicle may be a rail transit locomotive, and accordingly, the outdoor cable terminal 100 may be suitable for line connection of the rail transit locomotive. In a possible implementation, the outdoor cable terminal 100 may be located on the top of the vehicle body, and the outdoor cable terminal 100 may be electrically connected to the vehicle body. In this way, when the vehicle is running outdoors at high speed, the outdoor cable terminal 100 adopts a double-layer casing 300 structure, which improves the overall mechanical strength, can better withstand the impact of flying birds and stones, has higher installation quality, and can effectively avoid the situation of being hit and generating splashes.

[0058] In the embodiment of the present application, by improving the structure of the outdoor cable terminal 100 and using a double-layer sleeve 300 to protect the cable 200, it can be ensured that the product has sufficient rigidity, and at the same time, it can effectively avoid the situation where splashes are generated when the outdoor cable terminal 100 is hit, thereby damaging the surrounding equipment. In addition, after the first sleeve 310 is set, it not only has good weather resistance, but also increases a certain creepage distance. In order to ensure the structural rigidity of the outdoor cable terminal 100, the creepage distance of the product in the related art can only just meet the national standard requirements, while the outdoor cable terminal 100 provided in the embodiment of the present application can increase the creepage distance by about 200 mm after the first sleeve 310 is added, making the entire outdoor cable terminal 100 safer.

[0059] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0060] It should be noted that the phrases "in specific implementation", "in some embodiments", "in this embodiment", "exemplarily" and the like mentioned in the specification indicate that the described embodiment may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments that are explicitly or not explicitly described.

[0061] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0062] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0063] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An outdoor cable terminal, characterized in that: include: cable; A double-layer casing, the double-layer casing comprises a first casing and a second casing, the first casing is sleeved on the second casing, and the second casing is sleeved on the cable; The first sleeve and the second sleeve are connected via a coupling agent.

2. The outdoor cable terminal according to claim 1, characterized in that: The first sleeve is made of hard silicone rubber.

3. The outdoor cable terminal according to claim 1, characterized in that: The second sleeve is made of epoxy resin.

4. The outdoor cable terminal according to claim 3, characterized in that: A channel is provided in the second sleeve, and the cable can be passed through the channel so that the cable is vertically located in the second sleeve.

5. The outdoor cable terminal according to any one of claims 1 to 4, characterized in that: The outdoor cable terminal further comprises: a stress cone; The stress cone is located between the second sleeve and the cable, and the stress cone is sleeved on the cable.

6. The outdoor cable terminal according to claim 5, characterized in that: The outdoor cable terminal further comprises: a tail pipe; The tail pipe is located at one end of the double-layer casing, and the tail pipe is sleeved on the cable.

7. The outdoor cable terminal according to claim 6, characterized in that: The outdoor cable terminal further comprises: a cone support assembly; The cone support assembly is located outside the stress cone, and the cone support assembly is located above the tail pipe; The cone support assembly is used to support the stress cone.

8. The outdoor cable terminal according to claim 7, characterized in that: The outdoor cable terminal further comprises: a fixing member; The fixing member is located on the tail pipe, and is used to fix the tail pipe.

9. The outdoor cable terminal according to claim 5, characterized in that: The outdoor cable terminal further comprises: a spring device; The spring device is located below the stress cone, and the spring device is located outside the cable; The spring device is used to maintain interface pressure with the cable.

10. A vehicle, characterized in that: It comprises a vehicle body and the outdoor cable terminal according to any one of claims 1 to 9 above; The outdoor cable terminal is located on the top of the vehicle body, and the outdoor cable terminal is electrically connected to the vehicle body.

Images