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CN-224202590-U - Wireless temperature measuring device for cable intermediate joint

CN224202590UCN 224202590 UCN224202590 UCN 224202590UCN-224202590-U

Abstract

A wireless temperature measuring device for a cable intermediate joint comprises a cable, a first sleeve and a second sleeve. The first sleeve and the second sleeve adopt a spliced structure, are formed by sliding and splicing an upper splicing piece and a lower splicing piece through a clamping rail and a clamping groove, and are arranged on the outer wall of the cable intermediate joint through a threaded connecting sleeve. The first sleeve is provided with a temperature monitor, the second sleeve is provided with a battery box, and circuit communication power supply is realized through the annular conductive sheet and the internal conductive wire. The side of the sleeve is provided with a net plate for enhancing the structural strength and heat dissipation, and the air bag buffer device at the inner side can buffer external impact through the control of the air charging hole and the air valve. The temperature sensing piece of temperature monitor bottom closely laminates the joint outer wall, accurate monitoring temperature and wireless transmission data. The device is convenient to install, accurate in temperature measurement and stable in structure, and can effectively guarantee the operation safety of the cable.

Inventors

  • DONG HUAXUAN
  • ZHU DALU
  • HU WENHAO
  • WAN XINGCHENG
  • LI DEZHONG

Assignees

  • 宜昌能兴售电有限公司

Dates

Publication Date
20260505
Application Date
20250616

Claims (7)

  1. 1. The wireless temperature measuring device for the cable intermediate joint comprises a cable (1), a first sleeve (2) and a second sleeve (3) and is characterized in that the first sleeve (2) and the second sleeve (3) are of a spliced structure, the first sleeve (2) and the second sleeve (3) are connected through threads and sleeved on the outer wall of the cable intermediate joint (9), a temperature monitor (4) is arranged on the first sleeve (2), a battery box (5) is arranged on the second sleeve (3), and a buffer device is arranged on the inner sides of the first sleeve (2) and the second sleeve (3).
  2. 2. The wireless temperature measuring device of the cable intermediate joint according to claim 1, wherein the first sleeve (2) and the second sleeve (3) are formed by splicing an upper splicing piece (6-1) and a lower splicing piece (6-2), a clamping rail (7) is arranged at the end part of the upper splicing piece (6-1), a clamping groove (8) is correspondingly formed at the end part of the lower splicing piece (6-2), and the upper splicing piece (6-1) and the lower splicing piece (6-2) are in sliding connection through the clamping rail (7) and the clamping groove (8).
  3. 3. The wireless temperature measuring device for the cable intermediate joint according to claim 2, wherein the first sleeve (2) is spliced to form a threaded connector (11) at the end part, the second sleeve (3) is spliced to form a threaded connecting groove (12) at the end part correspondingly, and the first sleeve (2) and the second sleeve (3) are in threaded connection through the threaded connector (11) and the threaded connecting groove (12).
  4. 4. The wireless temperature measuring device for the cable intermediate joint according to claim 1, wherein the side parts of the first sleeve (2) and the second sleeve (3) are provided with mesh plates (10).
  5. 5. The wireless temperature measuring device of the cable intermediate joint according to claim 1, wherein an annular conducting plate (17) is arranged at the joint of the side parts of the first sleeve (2) and the second sleeve (3), a conducting wire is buried in the first sleeve (2) and connected with the temperature monitor (4) and the conducting plate (17), and a conducting wire is buried in the second sleeve (3) and connected with the battery box (5) and the conducting plate (17).
  6. 6. The wireless temperature measuring device for the cable intermediate joint according to claim 1, wherein the buffer device comprises an air bag (13), the air bag (13) is adhered to the inner walls of the first sleeve (2) and the second sleeve (3), an air charging hole (15) is formed in the outer walls of the first sleeve (2) and the second sleeve (3) and is communicated with the air bag (13), and an air valve (16) is arranged on the air charging hole (15).
  7. 7. The wireless temperature measuring device for the cable intermediate joint according to claim 6, wherein the bottom surface of the temperature monitor (4) penetrates through the first sleeve (2) and the air bag (13), and the bottom surface of the temperature monitor is provided with a temperature sensing piece (14) and is tightly attached to the outer wall of the intermediate joint (9).

Description

Wireless temperature measuring device for cable intermediate joint Technical Field The utility model relates to the technical field of power equipment state monitoring, in particular to a wireless temperature measuring device for a cable intermediate head. Background In power system operation, electrical equipment joints are used as key nodes for energy transmission, and the operating temperature of the electrical equipment joints directly reflects the health state of equipment. Abnormal temperature rise can be generated when the joint is in poor contact, oxidation corrosion or overload, insulation aging, short circuit fault and even fire accident can be caused if the joint is not monitored in time, so that the method has important significance for on-line temperature monitoring of the electrical equipment joint. The conventional temperature measurement technology comprises contact temperature measurement and non-contact temperature measurement, wherein the infrared temperature measurement technology has the advantages of non-contact, quick response, remote monitoring and the like, and is widely applied to the state monitoring of electrical equipment. The existing infrared temperature measuring device has a plurality of technical bottlenecks in practical application, a mounting structure is easy to slip under the action of cable vibration or thermal expansion and contraction, so that the relative position of a temperature measuring probe and a measured joint is offset, the monitoring precision is influenced, a sealing structure is mostly simple in design, the joint is easy to rust due to water vapor infiltration after long-term use, the heat dissipation effect is influenced, the contact resistance is also increased, part of device adjusting mechanisms are easy to fail due to mechanical abrasion in long-term operation, continuous stable temperature measurement cannot be realized, the electric driving structure has the problems of high power consumption and complex structure, in addition, a metal shell of the traditional device is easy to form heat accumulation, so that the actual temperature and the measured temperature of the joint deviate, and the running state of equipment cannot be truly reflected. Disclosure of Invention The wireless temperature measuring device for the cable intermediate joint provided by the utility model has the advantages that the device is convenient to install and flexibly adapt through the spliced structural design, the temperature of the joint is accurately monitored through reasonable temperature monitoring and power supply design, and the buffer device and the screen plate are used for enhancing the structural stability, the protection performance and the heat dissipation performance, so that the operation safety of the cable is comprehensively ensured. In order to solve the technical problems, the utility model adopts the following technical scheme: The wireless temperature measuring device for the cable intermediate joint comprises a cable, a first sleeve and a second sleeve, wherein the first sleeve and the second sleeve are of spliced structures, the first sleeve and the second sleeve are connected through threads and sleeved on the outer wall of the cable intermediate joint, a temperature monitor is arranged on the first sleeve, a battery box is arranged on the second sleeve, and a buffer device is arranged on the inner sides of the first sleeve and the second sleeve. In the preferred scheme, first sleeve and second sleeve splice by last splice and lower splice and form, the tip of going up the splice is provided with the card rail, and the draw-in groove has been seted up to the tip correspondence of lower splice, goes up splice and lower splice and passes through card rail and draw-in groove slip grafting. In the preferred scheme, the first sleeve is spliced and then forms a threaded connector at the end part, the second sleeve is spliced and then correspondingly forms a threaded connecting groove at the end part, and the first sleeve and the second sleeve are in threaded connection through the threaded connector and the threaded connecting groove. In a preferred scheme, the side parts of the first sleeve and the second sleeve are provided with net plates. In the preferred scheme, the lateral part junction of first sleeve and second sleeve is provided with annular conducting strip, the inside of first sleeve buries the conducting wire and connects temperature monitor and conducting strip, and the inside of second sleeve buries the conducting wire and connects battery case and conducting strip. In a preferred scheme, the buffer device comprises an air bag, wherein the air bag is adhered to the inner walls of the first sleeve and the second sleeve, air charging holes are formed in the outer walls of the first sleeve and the second sleeve and are communicated with the air bag, and air valves are arranged on the air charging holes. In the preferred scheme, the bottom surfac