CN216355136U

CN216355136U - Cable structure of ring main unit

Info

Publication number: CN216355136U
Application number: CN202122386203.7U
Authority: CN
Inventors: 徐超; 王军魁; 章保印; 陈锦安
Original assignee: Hangzhou Yihuitong Technology Co ltd
Current assignee: Hangzhou Yihuitong Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-04-19
Anticipated expiration: 2031-09-29

Abstract

The invention discloses a cable structure of a ring main unit, which aims to overcome the problem of inaccurate temperature measurement in the prior art and comprises a cabinet body, wherein the cabinet body is provided with a groove, a cable joint and an antenna are respectively arranged in the groove, the cable joint comprises an insulating sleeve, the integral structure of the insulating sleeve is in a T shape, the insulating sleeve is provided with a first hole and a second hole which are mutually communicated, the integral structure of the first hole and the second hole is also in a T shape, a bolt is inserted in the first hole, the bolt is inserted in the cabinet body, a copper nose is inserted in the second hole, a cable is inserted in the copper nose, the bolt is abutted against the copper nose, an installation groove is formed in the bolt, an RFID temperature sensor is arranged in the installation groove, and the RFID temperature sensor is connected to the antenna by adopting radio frequency signal communication.

Description

Cable structure of ring main unit

Technical Field

The invention belongs to electrical equipment, and particularly relates to a cable structure of a ring main unit.

Background

The ring main unit is an electrical device in which a group of power transmission and distribution equipment is impacted in a metal or nonmetal insulating cabinet body or is made into an assembled interval ring main power supply unit. The system comprises a load switch, a fuse, a transformer, a main circuit incoming line, a cable connector and the like. The cable connector is fixedly arranged in the ring main unit in actual use, the cable connector is provided with the cable plug, the outer portion of the cable connector is packaged by the protective shell, and the cable connector works in a highly sealed state.

However, the prior art is not perfect, and if the cable connector is in a high temperature state for a long time, the problems of component damage, fire hazard and the like are easily caused, and the conventional cable connector lacks a necessary temperature measuring structure and cannot detect the temperature inside the cable connector in real time and accurately.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects and problems in the prior art, the invention provides a cable structure of a ring main unit.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a cable structure of looped netowrk cabinet, the intelligent cabinet temperature adjusting device comprises a cabinet body, the cabinet body has the recess, be provided with cable joint and antenna in the recess respectively, the cable joint includes insulation support, insulation support's overall structure is "T" style of calligraphy, insulation support has the first hole and the second hole of mutual intercommunication, the overall structure in first hole and second hole also is "T" style of calligraphy, first downthehole inserting is equipped with the bolt, the bolt is inserted and is established on the cabinet body, the downthehole copper nose that is equipped with of second, it is equipped with the cable conductor to insert on the copper nose, the bolt butt is on the copper nose, the mounting groove has been seted up on the bolt, be provided with RFID temperature sensor in the mounting groove, RFID temperature sensor adopts the radio frequency signal communication to connect on the antenna.

Preferably, the number of the cable joints is at least two, two or more cable joints are arranged in the groove side by side, the number of the antennas is at least two, two or more antennas are arranged in the groove side by side, the antennas correspond to the cable joints one by one, and the RFID temperature sensors on the cable joints are connected to the corresponding antennas through radio frequency signal communication.

Preferably, the bolt is provided with a first joint surface, the mounting groove is formed in the first joint surface, the copper nose is provided with a second joint surface, the second joint surface is attached to the first joint surface, and the second joint surface covers the mounting groove.

Preferably, the bolt comprises a connecting rod, a through hole is formed in the copper nose, and the connecting rod penetrates through the through hole.

Preferably, the bolt further comprises a threaded rod, a nut is connected to the threaded rod in a threaded mode, and the nut positions the bolt on the insulating sleeve.

Preferably, a first countersunk groove and a second countersunk groove are respectively formed at two ends of the first hole, the bolt comprises a first plug, the first plug is inserted in the first countersunk groove, and the nut is inserted in the second countersunk groove.

Preferably, the nut is sleeved with a handle sleeve, and the handle sleeve extends out of the second countersunk groove.

Compared with the prior art, the invention has the outstanding and beneficial technical effects that:

(1) in the invention, a user can manually complete the dismounting of the cable joint on the cabinet body and the cable joint on the cable, in addition, the RFID temperature sensor is arranged in the mounting groove on the bolt, so that the insulation sleeve plays a sealing protection role on the RFID, the RFID temperature sensor can detect the temperature of the bolt in real time and carry out data interaction with other equipment by transmitting electromagnetic waves through the antenna, and therefore, the cable structure of the ring main unit has the advantages of simple structure, convenience in dismounting, reliability in work, accuracy in temperature measurement and convenience in use.

(2) In the invention, the bolt copper nose bolt antenna is arranged in the groove, the cabinet body plays a role in protecting the antenna, at least two antennas are arranged in the groove in a side-by-side arrangement mode, the two or more antennas are in one-to-side correspondence to the cable joints, and the RFID temperature sensors on the cable joints are connected to the corresponding antennas in a radio frequency signal communication mode.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is one of the schematic perspective views of the cable connector of the present invention;

FIG. 3 is a second schematic perspective view of the cable connector of the present invention;

FIG. 4 is a schematic cross-sectional view of the inventive cable splice;

fig. 5 is a schematic cross-sectional structure of the insulating sleeve of the invention;

FIG. 6 is a schematic view of an exploded structure of the inventive cable joint;

in the figure: 1-cabinet body, 2-cable joint, 3-antenna, 4-cable line, 11-groove, 21-insulating sleeve, 22-bolt, 23-copper nose, 24-nut, 25-handle sleeve, 26-RFID temperature sensor, 211-first hole, 212-second hole, 221-first plug, 222-mounting groove, 223-first joint face, 224-connecting rod, 225-threaded rod, 231-second plug, 232-second joint face, 233-through hole, 2111-first countersunk groove and 2112-second countersunk groove.

Detailed Description

In order to facilitate the understanding of those skilled in the art, the invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 6, a cable structure of a ring main unit, includes a main body 1, the main body 1 has a groove 11, a cable connector 2 and an antenna 3 are respectively disposed in the groove 11, the cable connector 2 includes an insulation sleeve 21, the integral structure of the insulation sleeve 21 is "T" shaped, a first hole 211 and a second hole 212 are disposed on the insulation sleeve 21, the first hole 211 and the second hole 212 are mutually communicated, the integral structure of the first hole 211 and the second hole 212 is "T" shaped, a bolt 22 is inserted in the first hole 211, a copper nose 23 is inserted in the second hole 212, the bolt 22 abuts against the copper nose 23, a mounting groove 222 is disposed on the bolt 22, an RFID temperature sensor 26 is disposed in the mounting groove 222, and the RFID temperature sensor 26 is connected to the antenna 3 by radio frequency signal communication.

Wherein, cabinet body 1 plays the guard action to cable joint 2 and antenna 3, has improved the reliability of cable joint 2 and antenna 3 work. The first hole 211 is a through hole 233, one end of the first hole 211 is disposed at the first end of the insulating sleeve 21, the other end of the first hole 211 is disposed at the second end of the insulating sleeve 21, the second hole 212 is a blind hole, and the outer end of the second hole 212 is disposed at the third end of the insulating sleeve 21. The bolt 22 refers to a conductive part that cooperates with the copper nose 23 to provide an electrical path. The copper nose 23 refers to a conductive part that cooperates with the bolt 22 to provide an electrical path. The bolt 22 abuts against the copper nose 23, and current can be transmitted between the bolt 22 and the copper nose 23.

In addition, the RFID temperature sensor 26 is used to detect the temperature of the bolt 22 in real time. The mounting groove 222 of the bolt 22 is also arranged in the first hole 211, the insulating sleeve 21 covers the mounting groove 222, and the insulating sleeve 21 protects the RFID temperature sensor 26 in the groove 11. The antenna 3 refers to a component for emitting electromagnetic waves for improving the communication capability of the RFID temperature sensor 26.

Specifically, the groove 11 is opened at a side surface of the cabinet 1, and an opening of the groove 11 faces an outer side of the cabinet 1.

In practical use, a user can hold the insulating sleeve 21 with a hand, insert the bolt 22 into the cabinet body 1, insert the copper nose 23 into the cable 4, and make the cable joint 2 perform switching between the cabinet body 1 and the cable 4, so that the sealing performance and reliability of connection between the cabinet body 1 and the cable 4 are improved.

In the invention, a user can manually assemble and disassemble the cable joint 2 on the cabinet body 1 and the cable joint 2 on the cable 4, in addition, the RFID temperature sensor 26 is arranged in the mounting groove 222 on the bolt 22, so that the insulation sleeve 21 plays a sealing protection role on the RFID, the RFID temperature sensor 26 can detect the temperature of the bolt 22 in real time and transmit electromagnetic waves through the antenna 3 to perform data interaction with other equipment, and therefore, the cable structure of the ring main unit has the advantages of simple structure, convenience in assembly and disassembly, reliability in operation, accuracy in temperature measurement and convenience in use.

Antenna 3 sets up the top in recess 11, and cable joint 2 sets up the lateral wall at recess 11, is favorable to antenna 3 to the outward diffusion electromagnetic wave.

The number of the cable connectors 2 is at least two, the two or more cable connectors 2 are arranged in the groove 11 side by side, the number of the antennas 3 is at least two, the two or more antennas 3 are arranged in the groove 11 side by side, the antennas 3 are one-to-one corresponding to the cable connectors 2, and the RFID temperature sensors 26 on the cable connectors 2 are connected to the corresponding antennas 3 through radio frequency signal communication.

Wherein, the antennas 3 correspond to the cable connectors 2 one by one, which means that the number of the antennas 3 is the same as that of the cable connectors 2. The cable joints 2 are each provided with an RFID temperature sensor 26, the RFID temperature sensors 26 on each cable joint 2 communicating via a respective antenna 3.

The bolt 22 is connected with a cable 4, and the cable 4 is inserted on the bolt 22.

The bolt 22 has a first engagement surface 223, the first engagement surface 223 abuts against the copper nose 23, and the mounting groove 222 is opened in the first engagement surface 223.

The first engagement surface 223 refers to a position where the copper nose 23 abuts on the bolt 22 when the bolt 22 and the copper nose 23 abut together, and the first engagement surface 223 is located in the first hole 211. If the cable structure of the ring main unit is powered on, the temperature on the first joint surface 223 is more likely to rise due to the contact resistance on the first joint surface 223.

In the invention, the RFID temperature sensor 26 is used for detecting the temperature on the first joint surface 223 in real time, and the first joint surface 223 is the joint position between the bolt 22 and the copper nose 23, so that the change of the temperature of the bolt 22 can be found in time, and therefore, the cable structure of the ring main unit has the advantage of high sensitivity.

The copper nose 23 has a second engagement surface 232, and the first engagement surface 223 is attached to the second engagement surface 232.

Wherein the first engagement surface 223 is engaged with the second engagement surface 232 means that the bolt 22 and the copper nose 23 are in surface contact.

In practical use, a large current needs to flow between the cabinet 1 and the cable 4, and the bolt 22 and the copper nose 23 adopting surface contact are suitable for being used in a large current scene.

Specifically, the second joint surface 232 is also positioned in the first hole 211, the second joint surface 232 covers the installation groove 222, and the RFID temperature sensor 26 is encapsulated between the bolt 22 and the copper nose 23, so that the sealing performance of the structure is further improved, and the RFID temperature sensor 26 is prevented from being separated from the installation groove 222.

The bolt 22 positions the copper nose 23 on the insulating sleeve 21, the bolt 22 comprises a connecting rod 224, a through hole 233 is formed in the copper nose 23, the connecting rod 224 penetrates through the through hole 233, the through hole 233 is located in the first hole 211, and the connecting rod 224 is used for positioning the copper nose 23 in the axial direction of the second hole 212, so that the copper nose 23 is convenient to assemble on the insulating sleeve 21.

The bolt 22 includes a threaded shaft 225, and a nut 24 is threadedly attached to the threaded shaft 225.

When the nut 24 is removed from the bolt 22, the bolt 22 can be removed from the bushing 21, thereby facilitating the removal of the bolt 22 from the bushing 21.

The two ends of the first hole 211 are respectively provided with a first countersunk groove 2111 and a second countersunk groove 2112, the bolt 22 comprises a first plug 221, the first plug 221 is inserted into the first countersunk groove 2111, and the nut 24 is arranged in the second countersunk groove 2112, so that the compactness of the structure is improved. Wherein a first countersunk groove 2111 is provided at a first end of the insulation sleeve 21 and a second countersunk groove 2112 is provided at a second end of the insulation sleeve 21.

The copper nose 23 further comprises a second plug 231. In practical use, the first plug 221 can be inserted into the cabinet 1, and the second plug 231 can be inserted into the cable 4, so as to further facilitate connection.

The nut 24 is sleeved with a handle sleeve 25, the handle sleeve 25 is cylindrical in overall structure, the handle sleeve 25 and the nut 24 are fixed together, and the handle sleeve 25 is partially exposed out of the second countersunk groove 2112, so that the nut 24 is protected on one hand, and a user can conveniently and manually disassemble and assemble the nut 24 on the threaded rod 225 on the other hand.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention shall be covered within the protection scope of the invention.

Claims

1. A cable structure of a ring main unit comprises a main body (1), wherein the main body (1) is provided with a groove (11), and is characterized in that a cable joint (2) and an antenna (3) are respectively arranged in the groove (11), the cable joint (2) comprises an insulating sleeve (21), the integral structure of the insulating sleeve (21) is in a T shape, the insulating sleeve (21) is provided with a first hole (211) and a second hole (212) which are communicated with each other, the integral structure of the first hole (211) and the second hole (212) is also in a T shape, a bolt (22) is inserted in the first hole (211), the bolt (22) is inserted in the main body (1), a copper nose (23) is inserted in the second hole (212), a cable (4) is inserted in the copper nose (23), the bolt (22) abuts against the copper nose (23), a mounting groove (222) is formed in the bolt (22), and an RFID temperature sensor (26) is arranged in the mounting groove (222), the RFID temperature sensor (26) is connected to the antenna (3) by radio frequency signal communication.

2. The cable structure of the ring main unit according to claim 1, wherein the number of the cable connectors (2) is at least two, two or more cable connectors (2) are arranged in the groove (11) side by side, the number of the antennas (3) is at least two, two or more antennas (3) are arranged in the groove (11) side by side, the antennas (3) correspond to the cable connectors (2) one by one, and the RFID temperature sensors (26) on the cable connectors (2) are connected to the corresponding antennas (3) by radio frequency signal communication.

3. The cable structure of the ring main unit as claimed in claim 1, wherein the bolt (22) has a first joint surface (223), the installation groove (222) is opened on the first joint surface (223), the copper nose (23) has a second joint surface (232), the second joint surface (232) is attached on the first joint surface (223), and the second joint surface (232) is covered on the installation groove (222).

4. The cable structure of the ring main unit as claimed in claim 1, wherein the bolt (22) comprises a connecting rod (224), a through hole (233) is formed on the copper nose (23), and the connecting rod (224) is inserted into the through hole (233).

5. The cable structure of the ring main unit as claimed in claim 1, wherein the bolt (22) further comprises a threaded rod (225), a nut (24) is connected to the threaded rod (225) in a threaded manner, and the nut (24) positions the bolt (22) on the insulating sleeve (21).

6. The cable structure of the ring main unit according to claim 5, wherein the two ends of the first hole (211) are respectively provided with a first countersunk groove (2111) and a second countersunk groove (2112), the bolt (22) comprises a first plug (221), the first plug (221) is inserted into the first countersunk groove (2111), and the nut (24) is inserted into the second countersunk groove (2112).

7. The cable structure of the ring main unit as claimed in claim 6, wherein the nut (24) is sleeved with a handle sleeve (25), and the handle sleeve (25) extends out of the second countersunk groove (2112).