An inner taper plug-in cable connector

Abstract

The utility model discloses a kind of inner cone plug-in cable connectors, it is related to the technical field of power cable connector.The utility model inner cone plug-in cable connector includes seat body, cable plug-in body and compression device;The seat body includes flange seat and connecting column body connected with each other, the inside of the connecting column body is equipped with fixed contact;The cable plug-in body includes insulating handle and power connection component, the insulating handle is sleeved in the outside of the power connection component, the bottom of the power connection component is connected with the fixed contact, the insulating handle is equipped with handle flange, the bottom of the handle flange is abutted with the top of the flange seat;The compression device includes cover and connecting piece, the top of the cover and handle flange is abutted, the connecting piece is sequentially through the cover and flange seat, to fix the insulating handle on the flange seat.The utility model inner cone plug-in cable connector is convenient to use, low in cost and high in safety.

Description

Technical Field

[0001] This utility model relates to the field of power cable connector technology, and in particular to an internal tapered plug-in cable connector. Background Technology

[0002] Existing pluggable cable connectors, such as the pluggable cable connector with patent number CN102377046B, although solving the problems of poor mechanical strength, insufficient waterproof and flame retardant performance and safety of traditional silicone rubber structure cable pluggable joints, require the injection of fluid insulating material into the guide cone for potting during the installation process. After curing, it is difficult to separate the power cable from the guide cone, making it very inconvenient for subsequent replacement, inspection and maintenance of the power cable. Moreover, after curing, the guide cone cannot be disassembled and reused, which is inconvenient for users and increases costs.

[0003] Furthermore, during the manual injection and curing of fluid insulating material into the guide cone, defects such as voids, bubbles, or impurities inevitably occur, leaving safety hazards. As the operating voltage level increases, excessive partial discharge may damage the insulating material, leading to malfunctions. Therefore, cable connectors with the above structure are generally only suitable for use on power equipment with lower voltage levels.

[0004] Therefore, there is an urgent need to design an internal tapered pluggable cable connector to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an internal cone pluggable cable connector that is convenient to use, low in cost and highly safe.

[0006] To address the aforementioned technical problems, this utility model provides an internally tapered pluggable cable connector, comprising a base, a cable pluggable body, and a clamping device. The lower part of the cable pluggable body is inserted into the base, and the clamping device is sleeved on the cable pluggable body. The base includes a flange seat and a connecting column connected to each other, and the connecting column has a fixed contact for connecting electricity inside. The cable pluggable body includes an insulating handle and a power connection assembly. The insulating handle is sleeved on the outside of the power connection assembly, and the bottom of the power connection assembly is connected to the fixed contact. The insulating handle has a handle flange, and the bottom of the handle flange abuts against the top of the flange seat. The clamping device includes a cover and a connector. The cover abuts against the top of the handle flange, and the connector passes sequentially through the cover and the flange seat to fix the insulating handle to the flange seat.

[0007] As an improvement to the above solution, the flange seat has a boss on its top, the boss has several first screw holes, and the top of the boss also has an annular boss; the flange seat has a first groove on its bottom, and a first washer is provided in the first groove; the outer wall of the connecting column has several second grooves, and the bottom surface of the connecting column has a third groove; the top of the fixed contact has a contact channel for connecting to the bottom of the power connection assembly, and the bottom of the fixed contact has a contact screw hole, in which a wiring bolt is provided.

[0008] As an improvement to the above solution, the bottom of the handle flange is provided with a fourth groove that matches the annular boss, and a second washer is provided in the fourth groove; the bottom outer wall of the insulating handle is provided with several fifth grooves, and a third washer is provided in the fifth groove to abut against the inner wall of the flange seat; the bottom inner wall of the insulating handle is provided with a metal sleeve.

[0009] As an improvement to the above solution, the power connection assembly includes a power cable, a terminal block, and a plug device connected sequentially from top to bottom; the terminal block includes a first terminal post, a second terminal post, and a terminal threaded portion connected sequentially from top to bottom, with the outer side wall of the second terminal post connected to the inner side wall of the metal sleeve; the cable wire at the bottom of the power cable is connected to the inner side wall of the first terminal post; the top inner side wall of the plug device has a threaded structure to be threadedly connected to the terminal threaded portion; the bottom side wall of the plug device is provided with a plurality of fifth grooves, and conductive spring contact fingers are provided in the fifth grooves to abut against the contact holes.

[0010] As an improvement to the above solution, the cable plug-in body further includes a stress cone sleeved on the power cable. The stress cone includes a stress support and a stress column connected to each other. The bottom of the stress support abuts against the top of the insulating handle, and the stress column is located between the power cable and the inner wall of the insulating handle.

[0011] As an improvement to the above solution, the cable plug-in body further includes a sealing cone sleeved on the top outer wall of the plug device, the outer wall of the sealing cone abutting against the inner wall of the connecting column.

[0012] As an improvement to the above solution, the cable plug-in body further includes a heat shrink tubing, which includes a cable sleeve and a handle sleeve connected to each other. The cable sleeve is fitted onto the power cable, and the handle sleeve is fitted onto the insulating handle.

[0013] As an improvement to the above solution, the stress cone and sealing cone are made of silicone rubber material.

[0014] As an improvement to the above solution, the fixed contact, terminal block, plug device and metal sleeve are all made of conductive metal.

[0015] As an improvement to the above solution, the conductive spring contact is a slanted coil conductive spring contact made of high-conductivity beryllium bronze.

[0016] The beneficial effects of implementing this utility model are as follows:

[0017] This utility model of an internal tapered pluggable cable connector achieves quick plugging and unplugging and detachable fixing of cables through the cooperation of the base, cable pluggable body, and clamping device, making it convenient to use and low in cost. The flange seat and connecting column design of the base provide stable mechanical support and electrical connection, while the insulated handle protects the electrical connection components, preventing electrical short circuits and electric shock accidents. The clamping device fixes the insulated handle to the flange seat through the cover and connector, ensuring the connection's firmness, reliability, and high safety.

[0018] Furthermore, the internal cone pluggable cable connector of this utility model improves the stability of mechanical support and electrical connection through the design of the flange seat and connecting column, while increasing the creepage distance and enhancing electrical safety. The use of multiple gaskets and the sealing cone significantly enhances waterproof and dustproof performance, effectively preventing the influence of the external environment on the connector. The optimized design of the power connection components, including the terminals and conductive spring contacts, ensures stable current transmission and reliable connection. In addition, the use of highly conductive metals and silicone rubber materials further improves conductivity and insulation performance, extending service life. The addition of the heat shrink tubing provides extra insulation and protection for the cable connector, enhancing its adaptability to harsh environments. These improvements enable the cable connector to maintain high performance and high safety across various voltage levels and operating environments, meeting the needs of different application scenarios. Attached Figure Description

[0019] Figure 1 This is an exploded structural diagram of the seat, cable plug-in body, and clamping device in the internal cone plug-in cable connector of this utility model.

[0020] Figure 2 This is a cross-sectional view of the internal tapered pluggable cable connector of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the seat body in the internal tapered plug-in cable connector of this utility model;

[0022] Figure 4 This is a cross-sectional view of the base body in the internal tapered plug-in cable connector of this utility model;

[0023] Figure 5This is a cross-sectional view of the cable plug-in body in the internal conical plug-in cable connector of this utility model;

[0024] Figure 6 This is a cross-sectional view of the insulating handle in the internal tapered plug-in cable connector of this utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the terminal block in the internal tapered pluggable cable connector of this utility model;

[0026] Figure 8 This is a three-dimensional structural diagram of the plug device in the internal cone pluggable cable connector of this utility model;

[0027] Figure 9 This is a three-dimensional structural diagram of the stress cone in the internal cone plug-in cable connector of this utility model;

[0028] Figure 10 This is a three-dimensional structural diagram of the sealing cone in the internal cone pluggable cable connector of this utility model;

[0029] Figure 11 This is a three-dimensional structural diagram of the heat shrink tubing in the internal tapered pluggable cable connector of this utility model;

[0030] Figure 12 This is a schematic diagram of the conductive spring contact finger in the internal tapered pluggable cable connector of this utility model. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0032] like Figure 1 and Figure 2 As shown, the present invention's internal conical plug-in cable connector includes a base 1, a cable plug-in body 2, and a clamping device 3. The lower part of the cable plug-in body 2 is inserted into the base 1, and the clamping device 3 is sleeved on the cable plug-in body 2.

[0033] like Figure 3 and Figure 4 As shown, the base 1 includes a flange seat 11 and a connecting column 12 connected to each other, and the connecting column 12 is provided with a fixed contact 121 for connecting to electricity inside;

[0034] like Figure 1 and Figure 6As shown, the cable plug-in body 2 includes an insulating handle 21 and an electrical connection assembly 22. The insulating handle sleeve 21 is disposed outside the electrical connection assembly 22. The bottom of the electrical connection assembly 22 is connected to the fixed contact 121. The insulating handle 21 is provided with a handle flange 211. The bottom of the handle flange 211 abuts against the top of the flange seat 11.

[0035] like Figure 1 The clamping device 3 shown includes a cover 31 and a connector 32. The cover 31 abuts against the top of the handle flange 211. The connector 32 passes through the cover 31 and the flange seat 11 in sequence to fix the insulated handle 21 onto the flange seat 11.

[0036] Preferably, the cover 31 is a bowl-shaped cover made of high-strength rust-resistant metal material, and the connector 32 is a bolt;

[0037] This utility model of an internal cone pluggable cable connector, through the cooperation of the base 1, cable pluggable body 2, and clamping device 3, achieves quick plugging and unplugging of cables and detachable fixing functions, making it convenient to use and low in cost. The flange seat 11 and connecting column 12 of the base 1 provide stable mechanical support and electrical connection. The insulating handle 21 protects the power connection assembly 22, preventing electrical short circuits and electric shock accidents. The clamping device 3, through the cover 31 and connector 321, fixes the insulating handle 21 to the flange seat, ensuring the connection's firmness and reliability, and providing high safety.

[0038] The specific structure of the base 1 and cable plug-in body 2 of the inner cone plug-in cable connector of this utility model is described below:

[0039] The specific structure of the base 1 is as follows:

[0040] like Figure 3 and Figure 4 As shown, the flange seat 11 has a boss 111 on its top, the boss has a plurality of first screw holes 111a, and the top of the boss 111 also has an annular boss 111b.

[0041] The bottom of the flange seat 11 is provided with a first groove 112, and a first washer 112a is provided in the first groove 112;

[0042] The outer wall of the connecting column 12 is provided with a plurality of second grooves 122, and the bottom surface of the connecting column 12 is provided with a third groove 123;

[0043] The top of the fixed contact 121 is provided with a contact channel 121a for connection to the bottom of the power connection assembly 22, and the bottom of the fixed contact 121 is provided with a contact screw hole 121b, in which a wiring bolt 121c is provided.

[0044] It should be noted that the design of the boss 111 and the first screw hole 111a on the top of the flange seat 11 provides a connection point with the clamping device 3, enhancing the stability of the connection. The first washer 112a enhances the sealing performance of the seat, preventing moisture and dust from entering and improving the connector's waterproof and dustproof capabilities. The design of the second groove 122 and the third groove 123 of the connecting post 12 increases the creepage distance and improves electrical safety. The design of the contact channel 121a and the contact screw hole 121b of the fixed contact 121 provides a reliable electrical connection point, ensuring stable current transmission.

[0045] The specific structure of the cable plug-in body 2 is as follows:

[0046] like Figure 5 and Figure 6 As shown, the bottom of the handle flange 211 is provided with a fourth groove 211a that is adapted to the annular boss 111b, and a second washer 211b is provided in the fourth groove 211a.

[0047] The bottom outer wall of the insulating handle 21 is provided with a plurality of fifth grooves 212, and a third washer 212a is provided in the fifth groove 212 to abut against the inner wall of the flange seat 11.

[0048] The bottom inner wall of the insulating handle 21 is provided with a metal sleeve 213.

[0049] It should be noted that the engagement of the fourth groove 211a at the bottom of the handle flange 211 with the annular boss 111b, and the placement of the second washer 211b, further enhance the sealing and stability between the insulated handle 21 and the flange seat 11. The contact between the third washer 212a in the fifth groove 212 and the inner wall of the flange seat 11 provides an additional sealing layer, preventing electrical short circuits and moisture intrusion. The metal sleeve 213 enhances the mechanical strength of the insulated handle 21 while providing good electrical conductivity, ensuring the reliability of the electrical connection.

[0050] The power connection assembly 22 includes a power cable 221, a terminal block 222, and a plug device 223 connected sequentially from top to bottom;

[0051] like Figure 5 and Figure 7As shown, the terminal block 222 includes a first terminal post 222a, a second terminal post 222b, and a terminal threaded portion 222c connected sequentially from top to bottom. The outer side wall of the second terminal post 222b is connected to the inner side wall of the metal sleeve 213.

[0052] The cable at the bottom of the power cable 221 is connected to the inner wall of the first terminal post 222a;

[0053] like Figure 5 and Figure 8 As shown, the top inner wall of the plug device 223 has a threaded structure for threaded connection with the terminal threaded portion;

[0054] The bottom sidewall of the plug device 223 is provided with a plurality of fifth grooves 223a, and a conductive spring contact finger 223b is provided in the fifth groove 223a to abut against the contact channel 121b.

[0055] It should be noted that the design of the power connection assembly 22, including the power cable 221, terminal block 222, and plug device 223, realizes the electrical connection between the power cable 221 and the fixed contact 121. The segmented design of the first terminal post 222a, the second terminal post 222b, and the terminal threaded portion 222c provides a flexible connection method, facilitating installation and maintenance. The contact between the conductive spring contact finger 223b and the contact hole 121a ensures the stability and reliability of the connection, while providing good conductivity. This design enables the cable connector to operate stably at different voltage levels, improving its applicability and versatility.

[0056] like Figure 5 and Figure 9 As shown, the cable plug-in body 2 also includes a stress cone 23 sleeved on the power cable 221. The stress cone 23 includes a stress support 231 and a stress column 232 connected to each other.

[0057] The bottom of the stress support 231 abuts against the top of the insulating handle 21, and the stress column 232 is disposed between the power cable 221 and the inner wall of the insulating handle 21.

[0058] It should be noted that the stress column 232 is a hollow structure, with its inner wall abutting against the power cable 221 and its outer wall abutting against the inner wall of the insulating handle 21. The addition of the stress cone 23 effectively disperses the electrical stress between the power cable 221 and the insulating handle 21, improving electrical insulation performance and preventing partial discharge and electrical breakdown. The contact between the stress support 231 and the top of the insulating handle 21, as well as the arrangement of the stress column 232, further enhance the mechanical strength and stability of the cable plug-in body, ensuring the safe operation of the cable connector under high voltage conditions.

[0059] like Figure 5 and Figure 10 As shown, the cable plug-in body 2 also includes a sealing cone 24 sleeved on the top outer side wall of the plug device 223, and the outer side wall of the sealing cone 24 abuts against the inner side wall of the connecting column 12.

[0060] It should be noted that the addition of the sealing cone 24 further enhances the sealing performance between the cable plug 2 and the base 1, preventing the intrusion of moisture and dust, and improving the connector's waterproof and dustproof capabilities. The tight contact between the sealing cone 24 and the inner wall of the connecting post 12 ensures the sealing and reliability of the connection, extending the service life of the cable connector.

[0061] like Figure 5 and Figure 11 As shown, the cable plug-in body 2 also includes a heat-shrink tubing 25. The heat-shrink tubing 25 comprises a cable sleeve 251 and a handle sleeve 252 connected to each other. The cable sleeve 251 is fitted onto the power cable 221, and the handle sleeve 252 is fitted onto the insulating handle 21. The addition of the heat-shrink tubing 25 provides an extra layer of insulation and protection, enhancing the insulation performance and mechanical strength of the cable connector. The design of the cable sleeve 251 and the handle sleeve 252 respectively protects the power cable 221 and the insulating handle 21, preventing the external environment from affecting the cable connector and improving its stability and reliability in harsh environments.

[0062] Regarding material selection, the preferred materials are:

[0063] The stress cone 23 and sealing cone 24 are made of silicone rubber, which has good insulation properties and flexibility, enabling it to adapt to different installation environments and mechanical stresses. The aging resistance and chemical corrosion resistance of silicone rubber further improve the service life and reliability of the cable connector.

[0064] The fixed contact 121, terminal block 222, plug device 223 and metal sleeve 213 are all made of conductive metal (such as copper alloy) and have silver-plated surfaces to ensure good conductivity and mechanical strength.

[0065] The conductive spring contact 223b is a slanted coil conductive spring contact (see specific structure). Figure 12 The conductive spring contact 223b, made of high-conductivity beryllium bronze, features a slanted coil conductive spring design and is constructed from high-conductivity beryllium bronze, providing excellent conductivity and elasticity. This design not only improves the conductivity of the contact finger but also enhances its mechanical stability and durability, ensuring the stability and reliability of the cable connector during long-term use.

[0066] In summary, this utility model's internal cone pluggable cable connector, through the cooperation of the base 1, cable pluggable body 2, and clamping device 3, achieves quick cable insertion and removal and detachable fixing functions, making it convenient to use and cost-effective. The flange seat 11 and connecting column 12 of the base 1 provide stable mechanical support and electrical connection, while the insulating handle 21 protects the power connection assembly 22, preventing electrical short circuits and electric shock accidents. The clamping device 3, through the cover 31 and connector 321, fixes the insulating handle 21 to the flange seat, ensuring the connection's firmness and reliability, and high safety. Furthermore, the design of the flange seat 11 and connecting column 12 of this utility model's internal cone pluggable cable connector improves the stability of mechanical support and electrical connection, while increasing the creepage distance and enhancing electrical safety. The use of multiple gaskets and the sealing cone 24 significantly enhances waterproof and dustproof performance, effectively preventing the influence of the external environment on the connector. The optimized design of the power connection assembly 22, including the terminal block 222 and the conductive spring contact finger 223b, ensures stable current transmission and reliable connection. Furthermore, the use of highly conductive metals and silicone rubber materials further enhances conductivity and insulation performance, extending service life. The addition of the heat-shrink tubing 25 provides extra insulation and protection for the cable connector, enhancing its adaptability to harsh environments. These improvements enable the cable connector to maintain high performance and safety across various voltage levels and operating environments, meeting the needs of different application scenarios.

[0067] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. An internal tapered pluggable cable connector, characterized in that, It includes a base, a cable plug and a clamping device, wherein the lower part of the cable plug and the clamping device is inserted into the base and the clamping device is sleeved on the cable plug and the clamping device. The base includes a flange seat and a connecting column connected to each other, and the interior of the connecting column is provided with a fixed contact for connecting to electricity; The cable plug-in body includes an insulating handle and an electrical connection assembly. The insulating handle is sleeved on the outside of the electrical connection assembly. The bottom of the electrical connection assembly is connected to the fixed contact. The insulating handle is provided with a handle flange. The bottom of the handle flange abuts against the top of the flange seat. The clamping device includes a cover and a connector. The cover abuts against the top of the handle flange, and the connector passes through the cover and the flange seat in sequence to fix the insulated handle to the flange seat.

2. The internal tapered pluggable cable connector according to claim 1, characterized in that, The flange seat has a boss on its top, the boss has several first screw holes, and the top of the boss also has an annular boss. The bottom of the flange seat is provided with a first groove, and a first washer is provided in the first groove; The outer wall of the connecting column is provided with a plurality of second grooves, and the bottom surface of the connecting column is provided with a third groove. The top of the fixed contact is provided with a contact channel for connection to the bottom of the power connection assembly, and the bottom of the fixed contact is provided with a contact screw hole, in which a wiring bolt is provided.

3. The internal tapered pluggable cable connector according to claim 2, characterized in that, The bottom of the handle flange is provided with a fourth groove that matches the annular boss, and a second washer is provided in the fourth groove; The bottom outer wall of the insulating handle is provided with several fifth grooves, and a third washer is provided in the fifth groove to abut against the inner wall of the flange seat. The bottom inner wall of the insulated handle is provided with a metal sleeve.

4. The internal tapered pluggable cable connector according to claim 3, characterized in that, The power connection assembly includes a power cable, a terminal block, and a plug device connected sequentially from top to bottom; The terminal block includes a first terminal post, a second terminal post, and a terminal threaded portion connected sequentially from top to bottom, wherein the outer side wall of the second terminal post is connected to the inner side wall of the metal sleeve. The cable at the bottom of the power cable is connected to the inner wall of the first terminal post. The top inner wall of the plug device has a threaded structure for threaded connection with the terminal threaded portion; The bottom sidewall of the plug device is provided with several fifth grooves, and each fifth groove is provided with a conductive spring contact finger to abut against the contact hole.

5. The internal tapered pluggable cable connector according to claim 4, characterized in that, The cable plug-in body also includes a stress cone sleeved on the power cable. The stress cone includes a stress support and a stress column connected to each other. The bottom of the stress support abuts against the top of the insulating handle, and the stress column is located between the power cable and the inner wall of the insulating handle.

6. The internal tapered pluggable cable connector according to claim 5, characterized in that, The cable plug-in body also includes a sealing cone sleeved on the top outer wall of the plug device, and the outer wall of the sealing cone abuts against the inner wall of the connecting column.

7. The internal tapered pluggable cable connector according to any one of claims 4-6, characterized in that, The cable plug-in body also includes a heat shrink tubing, which includes a cable sleeve and a handle sleeve connected to each other. The cable sleeve is fitted onto the power cable, and the handle sleeve is fitted onto the insulating handle.

8. The internal tapered pluggable cable connector according to claim 6, characterized in that, The stress cone and sealing cone are made of silicone rubber.

9. The internal tapered pluggable cable connector according to claim 4, characterized in that, The fixed contact, terminal block, plug assembly, and metal sleeve are all made of conductive metal.

10. The internal tapered pluggable cable connector according to claim 4, characterized in that, The conductive spring contact is a slanted coil conductive spring contact made of high-conductivity beryllium bronze.

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