CN219084258U

CN219084258U - Flexible sensor structure applied to cable temperature measurement

Info

Publication number: CN219084258U
Application number: CN202320087272.4U
Authority: CN
Inventors: 王文; 单长锁; 沈冲
Original assignee: Salisense Technology Co ltd
Current assignee: Salisense Technology Co ltd
Priority date: 2023-01-30
Filing date: 2023-01-30
Publication date: 2023-05-26
Anticipated expiration: 2033-01-30

Abstract

The utility model discloses a flexible sensor structure applied to cable temperature measurement, which comprises a silica gel ribbon sensor main body and a silica gel cover, wherein the silica gel ribbon comprises a ribbon body and a connecting block, the ribbon body penetrates through the connecting block, the sensor main body is arranged in the connecting block, and the connecting block is sealed through the silica gel cover; the surface acoustic wave resonator chip and the heat conducting block are arranged on two sides of the flexible antenna, and are connected with the flexible antenna in a welding mode. Compared with the prior art, the utility model has the advantages that: the flexible sensor structure is adopted in the scheme, cables with different specifications can be adapted, meanwhile, the heat conducting block is protruded, so that a hot spot can be directly triggered, and the temperature measurement is more accurate; meanwhile, the scheme adopts the surface acoustic wave temperature measurement principle, the flexible sensor can operate with the cable body in the same service life, and the maintenance-free temperature measurement requirement is met.

Description

Flexible sensor structure applied to cable temperature measurement

Technical Field

The utility model relates to the technical field of electric power on-line monitoring, in particular to a flexible sensor structure applied to cable temperature measurement.

Background

The high-voltage power cable is used as a key link of power transmission, and the running state of the high-voltage power cable is directly related to the safety of a power grid. In recent years, with the promotion of urban construction, an urban power transmission and distribution system is changed from a traditional overhead line power transmission mode to a buried mode, and higher requirements are put on the operation and maintenance work of a cable line. The cable is affected by load change, and factors such as irregular process, severe running environment, external force damage and the like in the process of laying and manufacturing the cable are extremely easy to cause the anomalies such as insulation damage, increase of contact resistance, reduction of mechanical strength and the like of the cable body, and finally accidents such as high-temperature burning and melting, insulation breakdown, wire breakage and the like of the cable can occur, so that the power supply safety is affected.

The existing temperature measurement means for cables are single, and manual infrared temperature measurement or distributed optical fiber temperature measurement means are adopted, so that the accuracy of the influence of external environment and the influence of temperature measurement points is low. In the practical application process, the cables are different in specification and different in line length, so that a flexible sensor structure applicable to different cable specifications is needed.

Disclosure of Invention

The flexible sensor structure is fixed on a cable to be measured through a binding belt, so that the temperature of the cable can be accurately measured, and accidents caused by abnormal temperature of the cable can be early warned.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the flexible sensor structure comprises a silica gel ribbon sensor main body and a silica gel cover, wherein the silica gel ribbon comprises a ribbon body and a connecting block, the ribbon body penetrates through the connecting block, the sensor main body is arranged in the connecting block, and the connecting block is sealed through the silica gel cover;

furthermore, the surface acoustic wave resonator chip and the heat conducting block are arranged on two sides of the flexible antenna, and are connected with the flexible antenna in a welding mode.

Furthermore, the flexible antenna is made of an ultrathin FPC circuit board capable of bending and deforming.

Compared with the prior art, the utility model has the advantages that: aiming at the problems that manual inspection or optical fiber temperature measurement technology is adopted for high-voltage cable temperature measurement in the prior art, the real-time performance and accuracy of temperature measurement are not high, the flexible sensor structure is adopted, cables with different specifications can be adapted, and meanwhile, the heat conducting block protrudes, so that a hot spot can be directly triggered, and the temperature measurement is more accurate;

meanwhile, the scheme adopts the surface acoustic wave temperature measurement principle, the flexible sensor can operate with the cable body in the same service life, and the maintenance-free temperature measurement requirement is met.

Drawings

FIG. 1 is a schematic structural view of a flexible sensor structure for cable temperature measurement according to the present utility model.

Fig. 2 is a main structure diagram of a sensor of a flexible sensor structure applied to cable temperature measurement according to the present utility model.

FIG. 3 is a schematic diagram of the installation of a flexible sensor structure for cable temperature measurement according to the present utility model.

As shown in the figure: 1. a silica gel ribbon; 101. a belt body; 102. a connecting block; 2. a sensor body; 3. a silica gel cover; 4. a surface acoustic wave resonator chip; 5. a flexible antenna; 6. and a heat conducting block.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; the specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The flexible sensor structure for cable temperature measurement is designed by adopting the acoustic surface wave sensing technology principle and utilizing the correlation between the resonant frequency of the acoustic surface wave temperature sensor and the environmental temperature;

the sensor comprises a silica gel ribbon 1, a sensor main body 2 and a silica gel cover 3, wherein the silica gel ribbon 1 comprises a ribbon 101 and a connecting block 102, the ribbon 101 penetrates through the connecting block 102, the sensor main body 2 is arranged in the connecting block 102, and the connecting block 102 is sealed through the silica gel cover 3;

the sensor main body 2 is composed of a surface acoustic wave resonator chip 4, a flexible antenna 5 and a heat conducting block 6. The flexible antenna 5 is made of an ultrathin FPC circuit board capable of bending and deforming.

The surface acoustic wave resonator chip 4 and the heat conducting block 6 are arranged on two sides of the flexible antenna 5, and are connected with the flexible antenna 5 in a welding mode, so that the layout is beneficial to heat transfer, and the measurement temperature is ensured to be more accurate;

the working principle of the utility model is as follows: during the equipment, place the sensor main part 2 earlier in the cell body of the connecting block 102 of silica gel ribbon 1, then cover silica gel lid 3 on the connecting block 102 of silica gel ribbon 1, with heat conduction piece 6 protrusion in the recess of silica gel lid 3, with silica gel glue bond silica gel lid 3 and silica gel ribbon 1 at last can, this flexible sensor structure twines and uses on the cable.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims

1. The utility model provides a be applied to flexible sensor structure of cable temperature measurement, includes silica gel ribbon (1), sensor main part (2), silica gel lid (3), its characterized in that: the silica gel ribbon (1) comprises a ribbon body (101) and a connecting block (102), wherein the ribbon body (101) is connected with the connecting block (102) in a penetrating way, the sensor main body (2) is arranged in the connecting block (102), and the connecting block (102) is sealed through a silica gel cover (3);

the sensor main body (2) is composed of a surface acoustic wave resonator chip (4), a flexible antenna (5) and a heat conducting block (6).

2. A flexible sensor structure for cable temperature measurement as in claim 1 wherein: the surface acoustic wave resonator chip (4) and the heat conducting block (6) are arranged on two sides of the flexible antenna (5), and are connected with the flexible antenna (5) in a welding mode.

3. A flexible sensor structure for cable temperature measurement as in claim 1 wherein: the flexible antenna (5) is made of an ultrathin FPC circuit board capable of bending and deforming.