CN214505824U - All-insulated cable connector - Google Patents
All-insulated cable connector Download PDFInfo
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- CN214505824U CN214505824U CN202120716513.8U CN202120716513U CN214505824U CN 214505824 U CN214505824 U CN 214505824U CN 202120716513 U CN202120716513 U CN 202120716513U CN 214505824 U CN214505824 U CN 214505824U
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Abstract
本实用新型专利公开了一种全绝缘电缆连接器，包括连接插头及位于连接插头一端的柜体固定组件，所述连接插头为F形连接插头，所述F形连接插头通过固定组件固定在隔板上，所述F形连接插头通过第一连接组连接有导电棒，且F形连接插头设置有容置导电棒的腔体，所述第一连接组件包括与导电棒连接的转换连接螺母及设置在转换连接螺母内的弹性导电插头；本装置保证了连接电阻满足了电流导通能力和温升要求，而且保证接触电阻和接触压力满足温升的要求，该方案适应城市经济和居民生活用电需求，促进国家全面建设智能型电网配电系统，不仅满足了全绝缘环网柜电压互感器电缆连接供电要求而且还提高了供电可靠性。
The utility model patent discloses a fully insulated cable connector, which includes a connecting plug and a cabinet fixing assembly located at one end of the connecting plug. On the board, the F-shaped connection plug is connected with a conductive rod through a first connection group, and the F-shaped connection plug is provided with a cavity for accommodating the conductive rod, and the first connection component includes a conversion connection nut connected with the conductive rod and The elastic conductive plug is arranged in the conversion connection nut; this device ensures that the connection resistance meets the requirements of current conduction capacity and temperature rise, and also ensures that the contact resistance and contact pressure meet the requirements of temperature rise. This solution is suitable for urban economy and residential life. It not only meets the power supply requirements of the voltage transformer cable connection of the fully insulated ring main unit, but also improves the reliability of the power supply.
Description
Technical Field
The patent of the utility model relates to a high-voltage cable connector, especially a full insulated cable connector, concretely relates to full insulated cable connector who uses on full insulated ring main unit.
Background
In the prior known technology, a 12kV fully insulated ring main unit voltage transformer in a power grid is implemented by a common T-shaped cable connector, and is affected by the size of the fully insulated ring main unit, so that the voltage transformer is often damaged by burning insulation due to the fact that the return radius of the voltage transformer cannot meet the return requirement of a high-voltage cable for many times in a power supply system, the safety of the power supply system is seriously affected, and the safety and reliability of power supply are affected.
Therefore, how to provide a special all-insulated cable connector for an all-insulated ring main unit voltage transformer, which has the advantages of good insulation strength, large return radius and high safety and reliability, is a technical problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
Problem to prior art, the utility model discloses a provide an all-insulated cable connector, and this all-insulated cable connector application technology on all-insulated looped netowrk cabinet, solve and install at all-insulated looped netowrk cabinet voltage transformer and adopt ordinary T type cable connector to connect now, because of receiving all-insulated looped netowrk cabinet body size influence, 12kV silicon rubber insulated cable radius of turning back can not satisfy 4 times cable diameter requirements, cause voltage transformer's the insulating accident of burning out many times at 12kV power supply system, power supply system safety problem has seriously been influenced.
The utility model discloses an all insulation cable connector mainly is applied to on the all insulation looped netowrk cabinet voltage transformer, has that dielectric strength is good, and the radius of bending back is big, the safe and reliable is high advantage.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides a full insulated cable connector, includes connecting plug and is located the cabinet body fixed subassembly of connecting plug one end, its characterized in that: the connecting plug is F-shaped connecting plug, the F-shaped connecting plug is fixed on the partition plate through a fixing assembly, the F-shaped connecting plug is connected with the conductive rod through a first connecting set, the F-shaped connecting plug is provided with a cavity for accommodating the conductive rod, and the first connecting assembly comprises a conversion connecting nut connected with the conductive rod and an elastic conductive plug arranged in the conversion connecting nut.
Furthermore, a threaded hole is formed in the tail end of the conductive rod, and an external thread of the conversion connecting nut is screwed and fixed with the threaded hole; and an insulating pipe sleeve is fixedly arranged on the outer side of the conductive rod and is fixed on the partition plate through a pressing plate and a hook bolt.
Further, the conversion coupling nut inner chamber is the connecting hole of loudspeaker shape, conductive plug tip is provided with the elastic contact and indicates, and the other end is provided with the cable crimping hole that makes to wear to establish the sinle silk tip and penetrate and compress tightly, the connecting hole is through the cross elastic contact of its tip indicate groove and elastic contact and indicate interference fit and separate the shelves through the location that sets up at conductive plug middle part and inject its cooperation degree of depth.
Furthermore, the F-shaped connecting plug is sequentially provided with an equipotential grounding layer, a silicon rubber insulating layer, a silicon rubber cable insulating layer and a wire core from outside to inside, and the equipotential grounding layer is arranged on the outer side of the silicon rubber insulating layer in a vulcanization mode and is vulcanized with the equipotential grounding layer of the cable into a whole.
Furthermore, a first equal-potential grounding lug is arranged on the excircle of the F-shaped connecting plug, a protective spacer sleeve is arranged at the joint of the F-shaped connecting plug and the fixing component, the fixing component comprises a fixing plate, a hook bolt, a locking nut and a saddle-shaped support, the fixing plate is fixed on the partition plate through the bolt, the hook bolt is hung on the fixing plate, and the other end of the hook bolt penetrates through a mounting hole of the saddle-shaped support and is locked through the locking nut.
Further, the sinle silk other end is connected with the fuse through the fuse engaging lug, and is connected through the threaded connection post between fuse engaging lug and the fuse, and the fuse other end is provided with the fuse metal head.
Furthermore, the fuse metal head is connected to the voltage transformer through an L-shaped connecting plug, and the fuse metal head penetrates through the cable connecting sleeve to be connected with the contact spring in a pressure contact mode
Furthermore, the L-shaped connecting plug is fixed on the cable connecting sleeve through an anti-moving assembly, the anti-moving assembly comprises an anti-moving fixing support, a hook-shaped fixing bolt and a locking nut, and the voltage transformer is fixed on a bottom plate of the cabinet body.
Furthermore, the L-shaped connecting plug is sequentially provided with an equipotential grounding layer, a silicon rubber insulating layer and a silicon rubber cable insulating layer from outside to inside, and the equipotential grounding layer of the L-shaped connecting plug is arranged on the outer side of the silicon rubber insulating layer in a vulcanization mode and is integrally vulcanized with the equipotential grounding layer of the cable.
Furthermore, equipotential shielding layers are arranged on the fuse connecting lug and the fuse outside the L-shaped connecting plug, and a second equipotential grounding lug is arranged on the equipotential grounding layer of the L-shaped connecting plug.
Compared with the prior art, the utility model provides a totally insulated cable connector's structure is unusual, and the totally insulated cable connector that this scheme provided promotes the intelligent electric wire netting distribution system of national comprehensive construction for adapting to city economy and resident's domestic power consumption demand, has not only satisfied the cable junction power supply requirement of totally insulated looped netowrk cabinet voltage transformer but also has improved the reliability of power supply.
The elastic contact fingers in the connecting structure realize interference contact connection, and the connecting resistor is ensured to meet the requirements of current conduction capability and temperature rise. The foremost end of the elastic contact finger is provided with a cross-shaped elastic contact finger groove, and the cross-shaped elastic contact finger groove can enable the elastic contact finger to realize elastic deformation when being inserted into the conversion connecting nut, so that the contact resistance and the contact pressure meet the requirement of temperature rise. The other end of the conductive plug is provided with a cable crimping hole, and the middle part of the conductive plug is provided with a positioning baffle for ensuring the insertion depth of the elastic contact finger. The cable core penetrates into a cable pressing hole of the conductive plug, and the f-shaped connecting plug and the silicone rubber cable are vulcanized into a whole after being pressed by cable pressing pliers.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an assembly structure of the all-insulated cable connector of the present invention;
FIG. 2 is a schematic structural view of the conversion coupling nut of FIG. 1;
FIG. 3 is a schematic structural diagram of the conductive plug of FIG. 1;
fig. 4 is a schematic structural diagram of the arrangement of the fully insulated cable connector in a 12kV fully insulated ring main unit.
In the figure, 1, F-shaped connecting plug; 2. a partition plate; 3. a conductive rod; 10. a threaded hole; 4. an insulating pipe sleeve; 16. a wire core; 18. an equipotential ground plane; 14. a silicon rubber insulating layer; 15. a silicone rubber cable insulation layer; 9. a first equipotential ground lug; 13. a protective spacer sleeve; 23. a fuse attachment lug; 25. a fuse; 24. a threaded connection post; 26. a fuse metal head; 19. an L-shaped connecting plug; 29. a voltage transformer; 27. a cable connection sleeve; 28. a contact spring; 22. an equipotential shielding layer; 33. a second equipotential grounding lug;
fixing the assembly: 5. a fixing plate; 6. a hook bolt; 7. locking the nut; 8. a saddle bracket;
a first connection group: 11. a conversion connection nut; 34. connecting holes; 12. a conductive plug; 35. an external thread; 37. an elastic contact finger; 38. cable crimping holes; 36. a cross-shaped elastic finger-touching groove; 39. positioning the partition;
the anti-back component: 30. a back-proof fixed support; 31. hook-shaped fixing bolts; 32. locking the nut;
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, 2, 3 and 4, a fully insulated cable connector, in particular to a fully insulated cable connector dedicated for a 12kV fully insulated ring main unit voltage transformer, is composed of a ring main unit cable PC insulating sleeve 4, an f-type connecting plug 1, a silicon rubber insulated cable, an L-type connecting plug 19, a voltage transformer 29 and other components. The cabinet body fixing assembly mainly comprises a connecting plug and a cabinet body fixing assembly positioned at one end of the connecting plug, wherein the connecting plug is an F-shaped connecting plug 1, the F-shaped connecting plug 1 is fixed on a partition plate 2 through the fixing assembly, the F-shaped connecting plug is connected with a conductive rod 3 through a first connecting set, the F-shaped connecting plug 1 is provided with a cavity for accommodating the conductive rod 3, and the first connecting assembly comprises a conversion connecting nut 11 connected with the conductive rod 3 and an elastic conductive plug 12 arranged in the conversion connecting nut 11; the F-shaped connecting plug and the fully insulated cable are vulcanized into a whole, in particular to a silicon rubber insulated cable.
As a preferred embodiment, the conductor bar 3 is a red copper conductor bar, the tail end of the conductor bar is provided with a threaded hole 10 of M16, the conversion connection nut 11 is fixedly installed through M16 threads, the M16 external thread 35 of the conversion connection nut 11 is screwed and fixed with the threaded hole 10, the inner cavity of the conversion connection nut 11 is a horn-shaped connection hole 34, such as a connection hole with a horn-shaped edge with the diameter of 8MM, as shown in FIG. 2, the connection hole is mainly matched with an elastic contact finger 37 of a conductive plug 12 with the specification of 8.1MM in one embodiment, specifically, the end of the conductive plug 12 is provided with an elastic contact finger 37, the other end of the connection hole is provided with a cable crimping hole 38 for penetrating and pressing the end of a through wire core 16, the connection hole 34 is in interference fit with the elastic contact finger 37 through a cross-shaped elastic contact finger groove 36 at the end and is limited in the fit depth through a positioning barrier 39 arranged in the middle of the conductive plug 12, the connecting resistor meets the requirements of current conduction capability and temperature rise, the wire core 16 penetrates into the cable crimping hole 38 of the conductive plug 12, and after the cable crimping hole is tightly pressed by a cable crimping pliers, the f-shaped connecting plug 1 and the silicone rubber cable are vulcanized into a whole. The conductive plug 12 is arranged inside the F-shaped connecting plug 1, and the cross-shaped elastic contact finger groove 36 can enable the elastic contact finger 37 to realize elastic deformation when being inserted into the conversion connecting nut 11, so that the contact resistance and the contact pressure can meet the requirement of temperature rise. An insulating pipe sleeve 4 is fixedly arranged on the outer side of the conductive rod 3, the insulating pipe sleeve 4 is fixed on the partition plate 2 through a pressing plate and a hook bolt, and in the embodiment, the insulating pipe sleeve 4 is preferably a PC insulating pipe sleeve.
In an embodiment, regarding the F-shaped connection plug 1, preferably, the F-shaped connection plug 1 is provided with an equipotential ground layer 18, a silicon rubber insulating layer 14, a silicon rubber cable insulating layer 15, and a wire core 16 in sequence from outside to inside, and the equipotential ground layer 18 is disposed outside the silicon rubber insulating layer 14 by means of vulcanization and is vulcanized with the cable equipotential ground layer 17 into a whole, so that the reliability of equipotential ground is ensured. And be provided with first equipotential ground connection ear 9 on F shape connecting plug 1 excircle, first equipotential ground connection ear 9 is connected with looped netowrk cabinet grounding body through earth conductor and makes F shape connecting plug 1 reliably ground connection, has satisfied that F shape connecting plug 1, equipotential ground plane 18 and silicon rubber cable equipotential ground plane are the same ground potential with the ground, satisfies tangible requirement. A protective spacer sleeve 13 is arranged at the joint of the fixed assembly, the protective spacer sleeve 13 is a nylon O-shaped protective spacer sleeve, an aluminum saddle-shaped support 8 is sleeved outside the protective spacer sleeve 13, wherein the nylon O-shaped protective spacer sleeve 13 effectively protects the aluminum saddle-shaped support 8 from damaging an equipotential grounding layer of the F-shaped connecting plug 1 when the locking nut 7 is fastened, and the insulating strength and the grounding continuity of the F-shaped connecting plug 1 are ensured; and the fixed assembly comprises a fixed plate 5, a hook bolt 6, a locking nut 7 and a saddle-shaped support 8, the fixed plate 5 is fixed on the partition plate 2 through a bolt, the hook bolt 6 is hung on the fixed plate 5, and the other end of the hook bolt 6 penetrates through a mounting hole of the saddle-shaped support 8 and is locked through the locking nut 7, so that the F-shaped connecting plug 1 is fixed on the PC insulating sleeve 4.
In an embodiment, regarding the connection design between the connector and the voltage transformer 29, the other end of the wire core 16 in the F-shaped L-shaped connection plug 1 is connected with the fuse 25 through the fuse connection lug 23, and the fuse connection lug 23 is connected with the fuse 25 through the threaded connection post 24, the other end of the fuse 25 is provided with the fuse metal head 26, in this embodiment, it is preferable that the other end of the wire core 16 is pressed together with the rear end of the fuse connection lug 23 through a wire pressing clamp, and the front end of the fuse connection lug 23 has a threaded hole to be connected with and screwed to the copper fuse threaded connection post 24. One end of the fuse 25 is a copper fuse threaded post 24 and the other end of the fuse 25 is a metal contact 26 of the fuse. The copper fuse threaded connection post 24 at one end of the fuse 25 is connected with the wire core 16 made of silicon rubber cable red copper through the fuse connection lug 23, and the metal contact 26 at the other end of the fuse 25 penetrates through the fuse installation hole of the voltage transformer 29 cable connection sleeve 27 through the L-shaped connection plug 19 to be connected with the contact spring 28 of the coil of the voltage transformer 29 in a pressure contact mode, so that a voltage loop is formed. That is, the fuse metal head 26 is connected to the voltage transformer 29 by the L-shaped connecting plug 19, and the fuse metal head 26 is connected in pressure contact with the contact spring 28 through the cable connecting sleeve 27.
As another more detailed preferred embodiment, the L-shaped connecting plug 19 is fixed on the cable connecting sleeve 27 through a withdrawing-proof assembly, the withdrawing-proof assembly comprises a withdrawing-proof fixing bracket 30, a hook-shaped fixing bolt 31 and a locking nut 32, and the voltage transformer 29 is fixed on the bottom plate of the cabinet. In addition, the L-shaped connecting plug 19 is sequentially provided with an equipotential grounding layer 18, a silicon rubber insulating layer 14 and a silicon rubber cable insulating layer 15 from outside to inside, the equipotential grounding layer 18 of the L-shaped connecting plug 19 is arranged on the outer side of the silicon rubber insulating layer 14 in a vulcanization mode and is vulcanized with the cable equipotential grounding layer 17 into a whole, and grounding continuity is guaranteed. Equipotential shielding layers 22 are arranged outside the fuse connecting lugs 23 and the fuses 25 in the L-shaped connecting plug 19, and second equipotential grounding lugs 33 are arranged on an equipotential grounding layer 18 of the L-shaped connecting plug 19. The equipotential grounding lug 33 is connected with the ring main unit shell and the grounding copper bar through a grounding wire to ensure the grounding continuity of the 12kV full-insulation cable connector special for the ring main unit, and the full-insulation touchable performance, the return radius requirement, the safety and the reliability of the 12kV full-insulation cable connector special for the ring main unit are met. The equipotential shielding layer 22 inside the L-shaped connecting plug 19 is used for equalizing the electric field intensity of the connection between the fuse connecting lug 23 and the fuse 25, and ensuring the insulating strength and the insulating performance of the insulating layer of the L-shaped connecting plug 19.
In a word, the utility model discloses an all-insulated cable connector not only satisfies the all-insulated tangible touch of the special all-insulated cable connector of 12kV all-insulated looped netowrk cabinet, return bend radius, safe and reliable's performance and simple installation easy to operate, is fit for using widely.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a full insulated cable connector, includes connecting plug and is located the cabinet body fixed subassembly of connecting plug one end, its characterized in that: connecting plug is F shape connecting plug (1), F shape connecting plug (1) is fixed on baffle (2) through fixed subassembly, F shape connecting plug (1) is connected with conducting rod (3) through first coupling assembling, and F shape connecting plug (1) is provided with the cavity of holding conducting rod (3), first coupling assembling includes conversion coupling nut (11) of being connected with conducting rod (3) and sets up conductive plug (12) in conversion coupling nut (11).
2. The all-insulated cable connector according to claim 1, wherein: the tail end of the conductive rod (3) is provided with a threaded hole (10), and an external thread (35) of the conversion connecting nut (11) is screwed and fixed with the threaded hole (10); and an insulating pipe sleeve (4) is fixedly arranged on the outer side of the conductive rod (3), and the insulating pipe sleeve (4) is fixed on the partition plate (2) through a pressing plate and a hook bolt.
3. An all-insulated cable connector according to claim 1 or 2, wherein: conversion coupling nut (11) inner chamber is connecting hole (34) of horn shape, conductive plug (12) tip is provided with elastic contact and indicates (37), and the other end is provided with cable crimping hole (38) that makes sinle silk (16) tip penetrate and compress tightly, connecting hole (34) indicate (37) interference fit and separate shelves (39) through setting up the location at conductive plug (12) middle part and inject its cooperation degree of depth through the cross elasticity of its tip and touch finger groove (36) and elastic contact.
4. The all-insulated cable connector according to claim 1, wherein: the F-shaped connecting plug (1) is sequentially provided with an equipotential grounding layer (18), a silicon rubber insulating layer (14), a silicon rubber cable insulating layer (15) and a wire core (16) from outside to inside, and the equipotential grounding layer (18) is arranged on the outer side of the silicon rubber insulating layer (14) in a vulcanization mode and is vulcanized with the cable equipotential grounding layer (17) into a whole.
5. The all-insulated cable connector according to claim 1, wherein: f shape connecting plug (1) excircle is last to be provided with first equipotential earthing lug (9), with fixed subassembly junction is provided with protection spacer (13), just fixed subassembly includes fixed plate (5), couple bolt (6), lock nut (7) and saddle type support (8), fixed plate (5) are fixed on baffle (2) through the bolt, and couple bolt (6) are hung on fixed plate (5), and the mounting hole that the saddle type support (8) was passed to couple bolt (6) other end and are locked through lock nut (7).
6. An all-insulated cable connector according to claim 4, wherein: the utility model discloses a fuse, including sinle silk (16) other end, fuse lug (23) are connected with fuse (25), and are connected through threaded connection post (24) between fuse lug (23) and fuse (25), and fuse (25) other end is provided with fuse metal head (26).
7. An all-insulated cable connector according to claim 6, wherein: the fuse metal head (26) is connected to a voltage transformer (29) through an L-shaped connecting plug (19), and the fuse metal head (26) penetrates through a cable connecting sleeve (27) to be connected with a contact spring (28) on the voltage transformer (29) in a pressure contact mode.
8. An all-insulated cable connector according to claim 7, wherein: l type connecting plug (19) go up to fix on cable junction sleeve (27) through preventing moving back the subassembly, prevent moving back the subassembly including preventing moving back fixed bolster (30), colluding type fixing bolt (31) and lock nut (32), voltage transformer (29) are fixed on cabinet body bottom plate.
9. An all-insulated cable connector according to claim 7, wherein: the L-shaped connecting plug (19) is sequentially provided with an equipotential grounding layer (18), a silicon rubber insulating layer (14) and a silicon rubber cable insulating layer (15) from outside to inside, and the equipotential grounding layer (18) of the L-shaped connecting plug (19) is arranged on the outer side of the silicon rubber insulating layer (14) in a vulcanization mode and is vulcanized with the cable equipotential grounding layer (17) into a whole.
10. The all-insulated cable connector according to claim 9, wherein: equipotential shielding layers (22) are arranged outside fuse connection lugs (23) and fuses (25) in the L-shaped connection plug (19), and equipotential grounding lugs (33) of a second equipotential grounding layer (18) of the L-shaped connection plug (19) are arranged.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120716513.8U CN214505824U (en) | 2021-04-08 | 2021-04-08 | All-insulated cable connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120716513.8U CN214505824U (en) | 2021-04-08 | 2021-04-08 | All-insulated cable connector |
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| CN214505824U true CN214505824U (en) | 2021-10-26 |
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| CN202120716513.8U Active CN214505824U (en) | 2021-04-08 | 2021-04-08 | All-insulated cable connector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161789A (en) * | 2021-04-08 | 2021-07-23 | 北京龙源开关设备有限责任公司 | All-insulated cable connector |
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2021
- 2021-04-08 CN CN202120716513.8U patent/CN214505824U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161789A (en) * | 2021-04-08 | 2021-07-23 | 北京龙源开关设备有限责任公司 | All-insulated cable connector |
| CN113161789B (en) * | 2021-04-08 | 2025-12-23 | 北京龙源开关设备有限责任公司 | All-insulated cable connector |
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