Cable coupler

Abstract

The invention discloses a cable coupler which comprises at least one H-shaped cable coupler unit composed of a first coupler body and a second coupler body. Each of the first coupler body and the second coupler body comprises an insulating tube with two open ends, and an inner cone conductor with plugging interfaces at two ends is embedded in the middle of each insulating tube; the inner cone conductor of the first coupler body is connected with the inner cone conductor of the second coupler body through a conducting rod; the insulating tube of the first coupler body and the insulating tube of the second coupler body are connected through epoxy resin arranged outside the conducting rod in a sleeving mode.

Description

Technical Field

[0001] This invention belongs to the field of electrical equipment technology, and specifically relates to a cable coupler. Background Technology

[0002] In high-voltage power transmission and distribution systems, cable branching and connection typically rely on bulky cable distribution boxes or fully enclosed gas-insulated switchgear. These devices have large internal spaces and require the installation of multiple terminals and other components, resulting in not only large footprints and high costs, but also complex installation and maintenance processes that necessitate power outages, impacting power supply reliability. The limitations of traditional solutions are particularly pronounced in space-constrained environments such as urban utility tunnels, underground substations, and compact switchgear. Furthermore, existing cable joints often lack sufficient sealing performance, insulation reliability, and condition monitoring capabilities, posing safety hazards. Summary of the Invention

[0003] The present invention aims to overcome the shortcomings of the prior art and provide a cable coupler.

[0004] To achieve the above objectives, the technical solution provided by this invention is as follows: The cable coupler includes at least one H-shaped cable coupler unit consisting of a first coupler body (1) and a second coupler body (2); both the first coupler body (1) and the second coupler body (2) include an insulating tube (3) with open ends, and an inner conical conductor (4) with plug-in interfaces at both ends is embedded in the middle of the insulating tube (3); the inner conical conductor (4) of the first coupler body (1) and the inner conical conductor (4) of the second coupler body (2) are connected by a conductive rod (5); the insulating tube (3) of the first coupler body (1) and the insulating tube (3) of the second coupler body (2) are connected by an epoxy resin (6) sleeved on the conductive rod (5).

[0005] Preferably, shielding rings (7) are provided on the outer sides of both ends of the inner conical conductor (4).

[0006] Preferably, the cable coupler is provided with an outer shell (8), and the inner side of the outer shell (8) is provided with a shielding mesh (9).

[0007] More preferably, a semiconductor electrical shielding layer (12) is provided between the outer shell (8) and the shielding mesh (9).

[0008] More preferably, the insulating tube (3) has mounting screw holes (10) on both end walls; the mounting screw holes (10) are connected to the end of the shielding mesh (9).

[0009] More preferably, the insulating tube (3) contains an RFID chip (13) and a ceramic capacitor (14) connected to the inner conical conductor (4). The RFID chip (13) and the ceramic capacitor (14) are also connected to an external controller.

[0010] More preferably, the insulating tube (3) is provided with annular plugs (11) at both ends, and the annular plugs (11) are connected to the insulating tube (3) by bolts and nuts.

[0011] Preferably, the inner sides of the two ends of the insulating tube (3) are provided with steps.

[0012] Preferably, the cable coupler includes multiple H-shaped cable coupler units, and the connection method of the coupler bodies of two adjacent cable coupler units is the same as the connection method of the first coupler body (1) and the second coupler body (2).

[0013] The present invention also provides a cable branch box, wherein the cable coupler of claim 9 is fixed on the bottom surface of the inner side of the cable branch box, and multiple cable receiving holes are provided at both ends of the cable branch box. After the cable passes through the cable receiving hole, it is connected to the port of the insulating tube (3) of the cable coupler, and the end of the cable is connected to the plug-in interface of the inner conical conductor (4).

[0014] The present invention will be further described below: This invention redesigns existing complex cable branching components into a straight tubular structure with open ends. The cable coupler designed in this invention is installed in a cable branch box. The cable enters the cable branch box from one end and connects to one end of the cable coupler. The step circumferentially formed on the inner side of the cable coupler's port ensures a tighter cable connection. The watch strap or spring contact fingers on the cable connector contact the inner wall of the inner conical conductor, enabling better and more stable conductivity. If the cable entering the cable branch box needs to be branched, simply insert the corresponding number of cables at the other end of the cable branch box according to the number of branches. Cable branching is completed "on the same plane," without the need for bending, allowing the cable branch box to be made very "flat," significantly saving installation space. In addition, this invention includes an RFID chip, which, in conjunction with a controller, is used to monitor conductor temperature in real time; it also includes a ceramic capacitor, which, in conjunction with the controller, is used to measure product voltage data in real time.

[0015] In summary, the cable coupler described in this invention is a cable branch connection device that is small in size, simple in structure, easy to install, and can flexibly adapt to various installation spaces. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an H-shaped cable coupler unit; Figure 2This is a schematic diagram of the H-shaped cable coupler unit in the plugged-in cable state. Figure 3 This is a schematic diagram of another implementation method.

[0017] In the picture: 1. First coupler body; 2. Second coupler body; 3. Insulating tube; 4. Inner conical conductor; 5. Conductive rod; 6. Epoxy resin; 7. Shielding ring; 8. Outer shell; 9. Shielding mesh; 10. Mounting screw hole; 11. Annular plug; 12. Semiconductor electrical shielding layer; 13. RFID chip; 14. Ceramic capacitor. Detailed Implementation

[0018] To make the objectives, technical solutions, and beneficial effects of the embodiments of the present invention clearer, further descriptions will be provided below in conjunction with specific implementations of the present invention. These embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Other implementation methods obtained by those skilled in the art based on the embodiments disclosed in the present invention without creative effort should all fall within the scope of protection of the present invention.

[0019] Example 1

[0020] See Figure 1 and Figure 2 The cable coupler includes at least one H-shaped cable coupler unit composed of a first coupler body 1 and a second coupler body 2; both the first coupler body 1 and the second coupler body 2 include an insulating tube 3 with open ends, and an inner conical conductor 4 with plug-in interfaces at both ends is embedded in the middle of the insulating tube 3; the inner conical conductor 4 of the first coupler body 1 and the inner conical conductor 4 of the second coupler body 2 are connected by a conductive rod 5; the insulating tube 3 of the first coupler body 1 and the insulating tube 3 of the second coupler body 2 are connected by an epoxy resin 6 sleeved on the conductive rod 5.

[0021] The inner conical conductor 4 has shielding rings 7 on the outer sides of both ends. The cable coupler has a housing 8, and a shielding mesh 9 is provided on the inner side of the housing 8. The insulating tube 3 has mounting screw holes 10 on its end walls at both ends; the mounting screw holes 10 communicate with the ends of the shielding mesh 9. The insulating tube 3 has annular caps 11 at both ends. The annular caps 11 are connected to the insulating tube 3 by bolts and nuts. The inner sides of the ports at both ends of the insulating tube 3 are provided with steps.

[0022] Example 2

[0023] See Figure 3The cable coupler includes at least one H-shaped cable coupler unit composed of a first coupler body 1 and a second coupler body 2; both the first coupler body 1 and the second coupler body 2 include an insulating tube 3 with open ends, and an inner conical conductor 4 with plug-in interfaces at both ends is embedded in the middle of the insulating tube 3; the inner conical conductor 4 of the first coupler body 1 and the inner conical conductor 4 of the second coupler body 2 are connected by a conductive rod 5; the insulating tube 3 of the first coupler body 1 and the insulating tube 3 of the second coupler body 2 are connected by an epoxy resin 6 sleeved on the conductive rod 5.

[0024] The inner conical conductor 4 has shielding rings 7 on the outer sides of both ends. The cable coupler has an outer shell 8, and a shielding mesh 9 is provided on the inner side of the outer shell 8. A semiconductor electrical shielding layer 12 is also provided between the outer shell 8 and the shielding mesh 9. The insulating tube 3 has mounting screw holes 10 on its end walls at both ends; the mounting screw holes 10 communicate with the ends of the shielding mesh 9. An RFID chip 13 and a ceramic capacitor 14, connected to the inner conical conductor 4, are located inside the insulating tube 3. The insulating tube 3 has annular caps 11 at both ends. The annular caps 11 are connected to the insulating tube 3 by bolts and nuts. Steps are provided on the inner sides of the ports at both ends of the insulating tube 3.

[0025] Example 3

[0026] The cable coupler includes multiple H-shaped cable coupler units, and the connection method of the coupler bodies of two adjacent cable coupler units is the same as the connection method of the first coupler body 1 and the second coupler body 2.

[0027] Example 4

[0028] The bottom surface of the cable branch box is fixed with the cable coupler described in Embodiment 1, Embodiment 2 or Embodiment 3. The cable branch box has multiple cable receiving holes at both ends. After the cable passes through the cable receiving hole, it is connected to the port of the insulating tube 3 of the cable coupler. The end of the cable is connected to the plug-in interface of the inner conical conductor 4.

Claims

1. A cable coupler, characterized in that, The cable coupler includes at least one H-shaped cable coupler unit consisting of a first coupler body (1) and a second coupler body (2); both the first coupler body (1) and the second coupler body (2) include an insulating tube (3) with open ends, and an inner conical conductor (4) with plug-in interfaces at both ends is embedded in the middle of the insulating tube (3); the inner conical conductor (4) of the first coupler body (1) and the inner conical conductor (4) of the second coupler body (2) are connected by a conductive rod (5); the insulating tube (3) of the first coupler body (1) and the insulating tube (3) of the second coupler body (2) are connected by an epoxy resin (6) sleeved on the conductive rod (5).

2. The cable coupler as described in claim 1, characterized in that, The inner conical conductor (4) has shielding rings (7) on the outer sides of both ends.

3. The cable coupler as described in claim 1, characterized in that, The cable coupler is provided with an outer shell (8), and the inner side of the outer shell (8) is provided with a shielding mesh (9).

4. The cable coupler as described in claim 3, characterized in that, A semiconductor electrical shielding layer (12) is also provided between the outer shell (8) and the shielding mesh (9).

5. The cable coupler as described in claim 3, characterized in that, The insulating tube (3) has mounting screw holes (10) on both end walls; the mounting screw holes (10) are connected to the ends of the shielding mesh (9).

6. The cable coupler as described in claim 4, characterized in that, The insulating tube (3) contains an RFID chip (13) and a ceramic capacitor (14) connected to the inner conical conductor (4).

7. The cable coupler as described in claim 5, characterized in that, The insulating tube (3) is provided with annular plugs (11) at both ends, and the annular plugs (11) are connected to the insulating tube (3) by bolts and nuts.

8. The cable coupler as claimed in claim 1, characterized in that, The insulating tube (3) has steps on the inner side of both ends of the port.

9. The cable coupler as claimed in any one of claims 1 to 8, characterized in that, The cable coupler includes multiple H-shaped cable coupler units, and the connection method of the coupler bodies of two adjacent cable coupler units is the same as the connection method of the first coupler body (1) and the second coupler body (2).

10. A cable branch box, characterized in that, The cable coupler of claim 9 is fixed on the bottom surface of the cable branch box. Multiple cable receiving holes are provided at both ends of the cable branch box. After the cable passes through the cable receiving hole, it is connected to the port of the insulating tube (3) of the cable coupler. The end of the cable is connected to the plug-in interface of the inner conical conductor (4).

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