Separable connector

Abstract

The utility model relates to a power cable accessory, in particular to a novel separable connector. The utility model discloses a novel separable connector, which comprises a connector jacket and an insulating layer sleeved in the connector jacket, a diversion layer is arranged below the tail end of the insulating layer, and the diversion layer is arranged in an annular gap below the insulating layer. The arrangement of the diversion layer solves the problems of suffocation and glue overflow at the tail end of the insulating layer in the production process of the separable connector, avoids the defects of a traditional diversion structure, and provides guarantee for long-time safe and reliable operation of the separable connector.

Description

Technical Field

[0001] The utility model relates to a power cable accessory, in particular to a detachable connector. Background Art

[0002] In power transmission lines, in order to save land and reduce losses, high-voltage switchgear is developing towards miniaturization and compactness. Therefore, the detachable connector that adapts to the trend of miniaturization of switchgear is also gradually becoming streamlined. Since the end of the insulation layer of the detachable connector is prone to air holding and glue overflow inside the connector during the production process, a semicircular exhaust groove is usually opened below the end of the insulation layer or a stress cone is punched near the end of the insulation layer for exhaust. However, this often destroys the structure of the outer shielding layer or the stress cone, which is not conducive to the long-term safe and stable operation of the detachable connector. Utility Model Content

[0003] The utility model discloses a power cable accessory, in particular to a detachable connector, aiming to provide a safe and reliable detachable connector type to solve the exhaust problem of the insulation layer and ensure the long-term safe and stable operation of the power transmission system.

[0004] To achieve the above-mentioned purpose, the detachable connector proposed in the utility model is characterized in that it includes a connector jacket and an insulating layer arranged in the connector jacket, the connector jacket is in contact with the insulating layer, the insulating layer is used to be sleeved on the outside of the cable inside the detachable connector, and a guide layer is provided at the end of the insulating layer, and the guide layer is formed by extending from the end of the insulating layer along the inner wall of the connector jacket to the end of the connector jacket and being flush.

[0005] Preferably, the connector jacket comprises an outer shielding layer and a grounding ear, the outer shielding layer is sleeved on the outer layer of the detachable connector, a stress cone is formed on one end of the outer shielding layer close to the connectable separator, and the grounding ear is arranged on the outer shielding layer.

[0006] Preferably, the stress cone is provided with an annular gap near the inner wall of the cable, and the guide layer is filled in the annular gap and connected to the insulating layer.

[0007] Preferably, the insulating layer is sleeved in the connector jacket, the stress cone is provided with a circular ring-shaped gap near the inner wall of the cable, and the guide layer is provided in the circular ring-shaped gap and connected to the insulating layer.

[0008] Preferably, the guide layer has a thickness of 1-2 mm.

[0009] Preferably, the detachable connector is provided with a cable, a guide layer, an insulating layer, a stress cone, an outer shielding layer from the inside to the outside, and is also provided with an inner shielding layer, a connecting hardware, a plug and a sleeve. The inner shielding layer is sleeved on one end of the cable terminal and contacts the insulating layer. One end of the connecting hardware is a free connection end. A detachable movable connection structure is formed between the plug and the other end of the connecting hardware. The plug is fixed in the inner cavity formed by the insulating layer.

[0010] Preferably, it further comprises a filling port, which is arranged at one end of the detachable connector away from the guide layer and connected to the outer shielding.

[0011] Preferably, the insulating layer and the guide layer are made of the same material and are integrally formed.

[0012] The beneficial effects of the utility model are:

[0013] By extending the end of the insulating layer along the inner wall of the connector jacket to form a guide layer, the problem of air holding and glue overflow at the end of the insulating layer inside the connector during the production process of the miniaturized detachable connector is solved, and the exhaust problem of the insulating layer during the glue injection process can be solved without destroying the stress cone structure; at the same time, the shortcomings of the traditional guide structure are avoided, the structural and functional integrity of the detachable connector is ensured, and a guarantee is provided for the long-term safe and reliable operation of the detachable connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0016] Figure 2 It is an assembly cross-sectional view of an embodiment of the utility model;

[0017] Figure 3 It is a cross-sectional view of a circular ring-shaped gap according to an embodiment of the present invention.

[0018] In the above figures: 1. cable; 2. insulation layer; 3. stress cone; 4. guide layer; 5. inner shielding layer; 6. outer shielding layer; 7. plug; 8. sleeve; 9. grounding ear; 10. circular gap; 11. filling port; 12. connecting hardware.

[0019] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain posture (as shown in the accompanying drawings), rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific manner. Therefore, it cannot be understood as a limitation on the present invention. If the specific posture changes, the directional indication will also change accordingly.

[0022] like Figure 1 As shown, the utility model provides a detachable connector, comprising a connector jacket and an insulating layer 2 arranged in the connector jacket, the connector jacket is in contact with the insulating layer 2, the insulating layer 2 is used to be sleeved on the outside of the cable 1 inside the detachable connector, and a guide layer 4 is provided at the end of the insulating layer 2, and the guide layer 4 is formed by extending from the end of the insulating layer 2 along the inner wall of the connector jacket to the end of the connector jacket and being flush.

[0023] In this embodiment, if Figure 1 and Figure 2 As shown, the connector jacket contacts the insulating layer 2, which is the outermost protective layer of the detachable connector. The integrated structure ensures the overall safety of the connector. The insulating layer 2 is used on the outside of the cable 1 to ensure the electrical performance between the electrical equipment and the cable 1. A guide layer 4 is provided at the end of the insulating layer 2. The setting of the guide layer 4 avoids problems such as air holding and glue overflow at the end of the insulating layer 2 of the detachable connector during the production process, thereby providing a guarantee for the long-term safe and reliable operation of the detachable connector.

[0024] In actual implementation, the material of the connector housing is not specifically limited here, and is preferably conductive EPDM rubber. The material of the insulating layer 2 is not specifically limited here, and is preferably EPDM rubber.

[0025] In one embodiment, the connector jacket includes an outer shielding layer 6 and a grounding ear 9. The outer shielding layer 6 is sleeved on the outer layer of the detachable connector. A stress cone 3 is formed on one end of the outer shielding layer 6 near the connectable separator. The grounding ear 9 is arranged on the outer shielding layer 6.

[0026] In this embodiment, if Figure 1 and Figure 2 As shown, the grounding ear 9 is connected to the grounding wire to realize the grounding of the connector jacket. The electrical stress control of the entire interior of the separable connector.

[0027] In one embodiment, a circular ring-shaped gap 10 is provided on the inner wall of the stress cone 3 close to the cable 1 , and the guiding layer 4 is filled in the circular ring-shaped gap 10 and connected to the insulating layer 2 .

[0028] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the inner wall of the stress cone 3 structure connected to the insulating layer 2 is hollowed out as a whole along the radial direction to form a circular ring-shaped gap 10, so that the guide layer 4 connected to the insulating layer 2 can directly pass through the tail end of the detachable connector, avoiding problems such as air holding and glue overflow at the end of the insulating layer 2 of the detachable connector during the production process, thereby providing a guarantee for the long-term safe and reliable operation of the detachable connector.

[0029] In actual implementation, the length of the annular gap 10 matches the size of the stress cone 3 .

[0030] In one embodiment, the guide layer 4 has a thickness of 1-2 mm.

[0031] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the guide layer 4 is arranged in the annular gap 10, and its length and thickness affect the electrical performance of the guide layer 4 to the detachable connector. A suitable guide layer 4 can avoid the problem of air holding in traditional connectors and improve the overall electrical stress control inside.

[0032] In actual implementation, the thickness of the guide layer 4 is preferably .mm.

[0033] In one embodiment, the detachable connector is provided with a cable 1, a guide layer 4, an insulating layer 2, a stress cone 3, an outer shielding layer 6 from the inside to the outside, and is also provided with an inner shielding layer 5, a connecting hardware 12, a plug 7 and a sleeve 8. The inner shielding layer 5 is sleeved on one end of the cable 1 terminal and contacts with the insulating layer 2. One end of the connecting hardware 12 is a free connection end. A detachable movable connection structure is formed between the plug 7 and the other end of the connecting hardware 12. The plug 7 is fixed in the inner cavity formed by the insulating layer 2.

[0034] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, a cable 1, a guide layer 4, an insulating layer 2, a stress cone 3, an outer shielding layer 6 are arranged outside the guide body, and an inner shielding layer 5, a plug 7 and a sleeve 8 are also arranged to ensure the safety of the detachable connector.

[0035] In one embodiment, the separable connector further comprises a filling port 11 , which is disposed at one end of the separable connector away from the guiding layer 4 and connected to the outer shield.

[0036] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the high-temperature flowing insulating glue enters the interior of the separable connector through the filling port 11 and forms an insulating layer 2 and a guide layer 4 after the temperature is lowered.

[0037] In actual implementation, the filling port 11 is located above the detachable connector, preferably directly above the cable 1 .

[0038] In one embodiment, the insulating layer 2 and the conductive layer 4 are made of the same material and are integrally formed.

[0039] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the insulating layer 2 and the guide layer 4 are made of the same material, preferably EPDM rubber. The insulating layer 2 and the guide layer 4 are integrally formed after the insulating glue is cooled, thereby ensuring the overall uniformity of the detachable connector and avoiding problems such as air holding and glue overflow at the end of the insulating layer 2 inside the connector during the production process of the detachable connector.

[0040] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A detachable connector, characterized in that: The invention comprises a connector jacket and an insulating layer arranged in the connector jacket, wherein the connector jacket contacts the insulating layer, the insulating layer is used to be sleeved on the outside of the cable inside the detachable connector, and a guide layer is arranged at the end of the insulating layer, wherein the guide layer is formed by extending from the end of the insulating layer along the inner wall of the connector jacket to be flush with the end of the connector jacket.

2. The detachable connector according to claim 1, characterized in that: The connector jacket comprises an outer shielding layer and a grounding ear. The outer shielding layer is sleeved on the outer layer of the insulating layer. A stress cone is formed on one end of the outer shielding layer close to the guide layer. The grounding ear is arranged on the outer shielding layer.

3. The detachable connector according to claim 2, characterized in that: The stress cone is provided with an annular gap near the inner wall of the cable, and the guide layer is filled in the annular gap and connected to the insulating layer.

4. The detachable connector according to claim 3, characterized in that: The guide layer has a thickness of 1-2 mm.

5. The detachable connector according to claim 1, wherein: The detachable connector is provided with a cable, a guide layer, an insulating layer, a stress cone, an outer shielding layer from the inside to the outside, and is also provided with an inner shielding layer, a connecting hardware, a plug and a sleeve. The inner shielding layer is sleeved on one end of the cable terminal and contacts the insulating layer. One end of the connecting hardware is a free connection end. A detachable movable connection structure is formed between the plug and the other end of the connecting hardware. The plug is fixed in the inner cavity formed by the insulating layer.

6. The detachable connector according to claim 2, wherein: It also includes a filling port, which is arranged at one end of the detachable connector away from the guide layer and connected to the outer shield.

7. The detachable connector according to claim 1, wherein: The insulating layer and the guide layer are made of the same material and are integrally formed.

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