CN218003613U

CN218003613U - External ultrahigh frequency partial discharge sensor

Info

Publication number: CN218003613U
Application number: CN202221363376.5U
Authority: CN
Inventors: 段杰; 顾瑛; 陶俐雯
Original assignee: Sichuan Zhonghe Hengye Technology Co ltd
Current assignee: Sichuan Zhonghe Hengye Technology Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-12-09
Anticipated expiration: 2032-06-02

Abstract

The utility model relates to the field of intelligent sensors, in particular to an external ultrahigh frequency partial discharge sensor, which comprises a base, a protective cover, two sliding plates, a sensor body, two sliding rods, two fixed plates, a plurality of springs, an iron block and a magnet; the protective cover is arranged on the base and is provided with two first through holes; the two fixing plates are arranged on the protective cover side by side; two ends of each sliding rod are connected with two fixing plates, and the two sliding rods are distributed side by side; each sliding plate is arranged on the two sliding rods in a sliding mode, the end faces, close to each other, of the two sliding plates are provided with clamping faces, and the end faces, far away from each other, of the two sliding plates are connected with the fixed plate through springs; the iron block and the magnet are respectively arranged on the end surfaces of the two sliding plates, which are close to each other; the sensor body is arranged on the base, and two joints are arranged on the sensor body; the two connectors are matched and extend into the protective cover. The utility model discloses simple structure is convenient for carry out water proof, and the sensor body can be in outdoor use.

Description

External ultrahigh frequency partial discharge sensor

Technical Field

The utility model belongs to the technical field of the intelligent sensor and specifically relates to a sensor is put in external superfrequency office.

Background

With the continuous development of national economy and the continuous increase of the scale of electric power systems in China, the requirements on the safety and the reliability of the operation of a power grid are increasingly improved. It has been found that incidental factors during the manufacture or installation of cables and accessories can cause congenital local defects such as bubbles, cracks, suspended conductive particles and electrode burrs. It is these defects that cause the electric field strength in certain regions inside or on the surface of the insulator to be higher than the average electric field strength, and when the breakdown field strength in these regions is lower than the average breakdown field strength, the discharge will occur first, while the insulating properties in other regions are maintained, thereby forming partial discharges. The partial discharge, which is a non-penetrating discharge, reflects a weak point existing inside the insulation of the device or a defect caused during the production process, and which exists for a long time and may cause insulation deterioration or breakdown under certain conditions. Therefore, the partial discharge is a characteristic quantity for characterizing the insulation condition and a main cause of insulation degradation. Through partial discharge detection, the latent defect that equipment internal insulation exists can be found in time, the degree of equipment internal insulation degradation is judged, and sudden insulation fault of equipment is avoided, so that the method has very important significance for ensuring the safe operation of electrical equipment.

The existing external sensor is used outdoors for a long time, the sensor needs to be protected from rain and heat, and meanwhile, the joint of the sensor needs to be protected from water.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the problem that exists in the background art, provide a sensor is put in external superfrequency office convenient to carry out water proof.

The technical scheme of the utility model: an external ultrahigh frequency partial discharge sensor comprises a base, a protective cover, two sliding plates, a sensor body, two sliding rods, two fixed plates, a plurality of springs, an iron block and a magnet;

the protective cover is arranged on the base and is provided with two first through holes;

the two fixing plates are arranged on the protective cover side by side; two ends of each sliding rod are connected with two fixing plates, and the two sliding rods are distributed side by side; the two sliding plates are distributed side by side, each sliding plate is arranged on the two sliding rods in a sliding mode, the end faces, close to each other, of the two sliding plates are provided with clamping faces, and the end faces, far away from each other, of the two sliding plates are connected with the fixed plate through springs; the iron block and the magnet are respectively arranged on the end surfaces of the two sliding plates, which are close to each other;

the sensor body is arranged on the base, and two joints are arranged on the sensor body; the two connectors are matched and extend into the protective cover.

Preferably, the water storage tank, the plurality of heat dissipation plates and the filter screen are further included; the base is provided with a second through hole and a plurality of water inlet holes; the second through hole is positioned right below the sensor body; the plurality of water inlet holes are positioned around the sensor body; the filter screen is arranged at the water inlet ends of the water inlet holes; the water storage tank is arranged on the base, a plurality of drain holes are formed in the water storage tank, and an opening is formed in the upper end of the water storage tank; the opening is communicated with the second through hole; the lower terminal surface of sensor body is all connected to the one end of a plurality of heating panels, and the other end of a plurality of heating panels all passes the second through-hole and stretches into in the water storage box.

Preferably, every inlet opening all sets up to the axis direction slope of base along vertical decurrent direction.

Preferably, the plurality of heat dissipation plates are each disposed obliquely.

Preferably, the device further comprises a support plate; the supporting plate is arranged on the bottom surface of the water storage tank.

Preferably, both sliding plates are provided with grooves.

Preferably, the protective pad further comprises a plurality of protective pads; a plurality of protection pads are all installed in the clamping face.

Preferably, the iron block and the magnet are provided with a plurality of groups.

Compared with the prior art, the utility model discloses following profitable technological effect has:

the two sliding plates are pushed to be away from each other, so that the plurality of iron blocks are separated from the plurality of magnets, the plurality of springs are contracted, the two sliding plates are away from each other, the cable can conveniently penetrate through the two first through holes and is connected with the two connectors, and the cable is detected by the sensor body; the sensor body is convenient to mount and use under the condition of outdoor rainwater due to the protection and the installation of the protective cover, so that the practicability of the device is improved; rainwater discharged through the plurality of water inlet holes is collected in the water storage tank, impurities are filtered by the filter screen, and meanwhile, the plurality of water inlet holes which are obliquely arranged block the impurities, so that the purity of cooling water collected in the water storage tank is further ensured, and the probability of bacteria breeding in the water storage tank is reduced; the heat that is produced the sensor body by a plurality of heating panels carries out the heat transfer, cools off through the cooling water, and the area of contact when a plurality of heating panels that the slope set up with the cooling is bigger, and the heat dissipation is faster, is favorable to protecting the sensor body.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion B in fig. 1.

Fig. 4 is a side view of the present invention.

Reference numerals: 1. a water storage tank; 101. a drain hole; 2. a base; 201. a second through hole; 202. a water inlet hole; 3. a protective cover; 301. a first through hole; 4. a sliding plate; 401. a clamping surface; 402. a groove; 5. a sensor body; 51. a joint; 6. a heat dissipation plate; 7. a slide bar; 8. a filter screen; 9. a fixing plate; 11. a support plate; 12. a spring; 13. a protection pad; 14. an iron block; 15. and a magnet.

Detailed Description

Example one

As shown in fig. 1-4, the present invention provides an external ultrahigh frequency partial discharge sensor, which comprises a base 2, a protective cover 3, two sliding plates 4, a sensor body 5, two sliding rods 7, two fixing plates 9, a plurality of springs 12, a plurality of protective pads 13, an iron block 14 and a magnet 15.

The protective cover 3 is arranged on the base 2, and two first through holes 301 are arranged on the protective cover 3.

The two fixing plates 9 are arranged on the protective cover 3 side by side; two ends of each sliding rod 7 are connected with two fixing plates 9, and the two sliding rods 7 are distributed side by side; the two sliding plates 4 are distributed side by side, each sliding plate 4 is arranged on the two sliding rods 7 in a sliding mode, and the end faces, close to each other, of the two sliding plates 4 are provided with clamping faces 401; a plurality of protection pads 13 are installed in the clamping surface 401, and the cables connected to the two joints 51 are protected by arranging the plurality of protection pads 13; the end surfaces of the two sliding plates 4 which are far away from each other are connected with the fixed plate 9 through springs 12, and grooves 402 are formed in the two sliding plates 4; the iron blocks 14 and the magnets 15 are respectively arranged on the mutually close end surfaces of the two sliding plates 4, and a plurality of groups of iron blocks 14 and magnets 15 are arranged; the connection between the two sliding plates 4 is made stronger by the presence of sets of iron blocks 14 and magnets 15.

The sensor body 5 is arranged on the base 2, and two connectors 51 are arranged on the sensor body 5; the two tabs 51 fit into the boot 3.

In this embodiment, when in use, a user pushes the two sliding plates 4 away from each other through the two grooves 402, so that the plurality of iron blocks 14 are separated from the plurality of magnets 15, and the plurality of springs 12 are contracted, so that the two sliding plates 4 are away from each other, which facilitates to pass a cable through the two first through holes 301 and connect the two connectors 51, thereby detecting the cable by the sensor body 5; by the protection installation of safety cover 3 for sensor body 5 is convenient for install and use under the condition of outdoor rainwater, has improved the practicality of device.

Example two

As shown in fig. 1 and fig. 3, compared with the first embodiment, the external ultrahigh frequency partial discharge sensor of the present invention further includes a water storage tank 1, a plurality of heat dissipation plates 6, a filter screen 8 and a support plate 11; the base 2 is provided with a second through hole 201 and a plurality of water inlet holes 202; the second through hole 201 is located right below the sensor body 5; a plurality of water inlet holes 202 are positioned around the sensor body 5, and each water inlet hole 202 is obliquely arranged towards the central axis direction of the base 2 along the vertical downward direction; the filter screen 8 is arranged at the water inlet ends of the water inlet holes 202; the water storage tank 1 is arranged on the base 2, and a plurality of drain holes 101 are formed in the water storage tank 1; a filter screen is arranged in each of the plurality of drain holes 101; the upper end of the water storage tank 1 is provided with an opening; the opening is communicated with the second through hole 201; one end of each of the plurality of heat dissipation plates 6 is connected with the lower end face of the sensor body 5, the other end of each of the plurality of heat dissipation plates 6 penetrates through the second through hole 201 and extends into the water storage tank 1, and the plurality of heat dissipation plates 6 are obliquely arranged; the support plate 11 is mounted on the bottom surface of the reservoir 1.

In the embodiment, when the rainwater collecting device is used, a user collects rainwater discharged through the plurality of water inlet holes 202 in the water storage tank 1 by arranging the water storage tank 1, impurities are filtered by the filter screen 8, and meanwhile, the plurality of water inlet holes 202 which are obliquely arranged block the impurities, so that the purity of cooling water collected in the water storage tank 1 is further ensured, and the probability of bacteria breeding in the water storage tank 1 is reduced; the heat generated by the plurality of heat dissipation plates 6 to the sensor body 5 is transferred thermally, and is cooled by cooling water, the contact area between the plurality of heat dissipation plates 6 arranged obliquely and the cooling is larger, the heat dissipation is faster, and the sensor body 5 is protected.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. An external ultrahigh frequency partial discharge sensor is characterized by comprising a base (2), a protective cover (3), two sliding plates (4), a sensor body (5), two sliding rods (7), two fixing plates (9), a plurality of springs (12), an iron block (14) and a magnet (15);

the protective cover (3) is arranged on the base (2), and two first through holes (301) are formed in the protective cover (3);

the two fixing plates (9) are arranged on the protective cover (3) side by side; two ends of each sliding rod (7) are connected with two fixing plates (9), and the two sliding rods (7) are distributed side by side; the two sliding plates (4) are distributed side by side, each sliding plate (4) is arranged on the two sliding rods (7) in a sliding mode, the end faces, close to each other, of the two sliding plates (4) are provided with clamping faces (401), and the end faces, far away from each other, of the two sliding plates (4) are connected with the fixed plate (9) through springs (12); the iron block (14) and the magnet (15) are respectively arranged on the end surfaces of the two sliding plates (4) which are close to each other;

the sensor body (5) is arranged on the base (2), and two joints (51) are arranged on the sensor body (5); the two connectors (51) are matched and extend into the protective cover (3).

2. The external ultrahigh frequency partial discharge sensor according to claim 1, further comprising a water storage tank (1), a plurality of heat dissipation plates (6) and a filter screen (8); a second through hole (201) and a plurality of water inlet holes (202) are arranged on the base (2); the second through hole (201) is positioned right below the sensor body (5); a plurality of water inlet holes (202) are positioned around the sensor body (5); the filter screen (8) is arranged at the water inlet ends of the water inlet holes (202); the water storage tank (1) is arranged on the base (2), a plurality of drain holes (101) are formed in the water storage tank (1), and an opening is formed in the upper end of the water storage tank (1); the opening is communicated with the second through hole (201); the lower terminal surface of sensor body (5) is all connected to the one end of a plurality of heating panels (6), and the other end of a plurality of heating panels (6) all passes second through-hole (201) and stretches into in water storage box (1).

3. The external ultrahigh frequency partial discharge sensor according to claim 2, wherein each water inlet hole (202) is arranged in a manner of inclining towards the central axis of the base (2) along a vertical downward direction.

4. The external vhf partial discharge sensor according to claim 2, wherein the plurality of heat dissipation plates (6) are all obliquely arranged.

5. The external uhf partial discharge sensor according to claim 2, further comprising a support plate (11); the supporting plate (11) is arranged on the bottom surface of the water storage tank (1).

6. An external vhf partial discharge sensor according to claim 1, characterized in that both sliding plates (4) are provided with grooves (402).

7. The external uhf partial discharge sensor according to claim 1, further comprising a plurality of protection pads (13); a plurality of protection pads (13) are mounted in the clamping surface (401).

8. The external UHF partial discharge sensor according to claim 1, characterised in that there are several sets of iron blocks (14) and magnets (15).