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CN-122017321-A - Intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions and packaging structure thereof

CN122017321ACN 122017321 ACN122017321 ACN 122017321ACN-122017321-A

Abstract

The invention discloses an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions and a packaging structure thereof, which relate to the technical field of intelligent high-frequency current sensors and comprise a first cover plate, wherein the first cover plate is arranged on one side of a sensor body, the other side of the sensor body is provided with a second cover plate for wrapping and protecting the two sides of the top of the sensor body, insulating layers are arranged in the first cover plate and the second cover plate, and both inside compressive layer that all is provided with for reinforcing the compressive property of first cover plate and second cover plate, one side of second cover plate is provided with a plurality of magnet bars, and a plurality of magnet bars are connected with magnet board magnetism for reinforcing the steadiness after first cover plate and the laminating of second cover plate possess compressive strength and yield strength simultaneously, when the sensor body is buried into cable slot or receives the heavy object extrusion, can keep inner structure undeformed, avoid coil broken wire or magnetic core position skew.

Inventors

  • WU JITAO

Assignees

  • 宁波金涛电子有限公司

Dates

Publication Date
20260512
Application Date
20260325

Claims (10)

  1. 1. An intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions, comprising: a sensor body (100); The sensor comprises a first cover plate (208), wherein the first cover plate (208) is arranged on one side of a sensor body (100), a second cover plate (209) is arranged on the other side of the sensor body (100) and used for wrapping and protecting two sides of the top of the sensor body (100), insulating layers (210) are arranged in the first cover plate (208) and the second cover plate (209), and compression resistant layers (211) are arranged in the first cover plate (208) and the second cover plate (209) and used for enhancing the compression resistance of the first cover plate and the second cover plate (209); one side of second overlay (209) is provided with a plurality of magnet strips (301), one side of first overlay (208) is provided with magnet board (302), a plurality of magnet strips (301) are connected with magnet board (302) magnetism for strengthen the steadiness after first overlay (208) and laminating of second overlay (209).
  2. 2. The intelligent high-frequency current sensor with the self-diagnosis and wireless transmission functions according to claim 1, wherein two positioning frames (101) are arranged on two sides of the sensor body (100), two limit bolts (102) are arranged on the tops of the four positioning frames (101) and used for installing the sensor body (100) and application equipment, and a wire connecting tube (103) is arranged on the top of the sensor body (100).
  3. 3. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 2, wherein a rotating piece (201) is arranged on one side of the sensor body (100), a round gear (202) is sleeved at one end of the rotating piece (201), the rotation of the rotating piece (201) is used for driving the round gear (202) to rotate in situ, two stability augmentation strips (203) are arranged in the sensor body (100), and stability augmentation blocks (204) are sleeved at one ends of the two stability augmentation strips (203).
  4. 4. The intelligent high-frequency current sensor with the self-diagnosis and wireless transmission functions according to claim 3, wherein the two stability augmentation strips (203) are fixedly arranged in the sensor body (100), the two stability augmentation blocks (204) are movably sleeved with one end parts of the two stability augmentation strips (203) respectively, auxiliary plates (205) are arranged on one sides of the two stability augmentation blocks (204), and straight racks (206) are arranged on one sides of the two auxiliary plates (205).
  5. 5. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 4, wherein one side of each of the two straight racks (206) is fixedly connected with one side of each of the two auxiliary plates (205), and an extension plate (207) is fixedly installed on the other side of each of the two auxiliary plates (205), and one side of one of the extension plates (207) is fixed with one side of the first cover plate (208).
  6. 6. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 5, wherein one side of the other extension plate (207) is fixed with one side of the second cover plate (209), two straight racks (206) are respectively meshed with the round gear (202), and the round gear (202) drives the two straight racks (206) to move left and right so as to adjust the stretching area of the first cover plate (208) and the second cover plate (209).
  7. 7. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 6, wherein the first cover plate (208) and the second cover plate (209) are respectively provided with a high-temperature-resistant layer (212), the bottoms of the first cover plate (208) and the second cover plate (209) are respectively fixedly provided with a U-shaped compression-resistant frame (303), and one side of the sensor body (100) is provided with a vertical abutting plate (304).
  8. 8. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 7, wherein a plurality of first magnet rollers (305) are arranged on one side of the vertical abutting plate (304), a plurality of second magnet rollers (306) are arranged on one sides of the first covering plate (208) and the second covering plate (209), and the positions of the plurality of second magnet rollers (306) are arranged at equal intervals.
  9. 9. The intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions according to claim 8, wherein the opening diameters of the second magnet rollers (306) are smaller than the opening diameters of the first magnet rollers (305), the first magnet rollers (305) are respectively and magnetically connected with the second magnet rollers (306), and the intelligent high-frequency current sensor is used for automatically moving the first cover plate (208) and the second cover plate (209) in a flush manner, so that the accuracy of peripheral coverage of the sensor body (100) by the first magnet rollers and the second magnet rollers is ensured.
  10. 10. A packaging structure of an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions is characterized by comprising the intelligent high-frequency current sensor according to any one of claims 1-9.

Description

Intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions and packaging structure thereof Technical Field The invention relates to the technical field of intelligent high-frequency current sensors, in particular to an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions and a packaging structure thereof. Background The high-frequency current sensor is used as a core sensing unit for on-line monitoring of partial discharge, plays a key role in the insulation state of the power equipment, and along with the deep promotion of the construction of a smart grid and an electric power internet of things, the intelligent level requirement of the sensor is continuously improved, the intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions becomes the key direction of industry development, the high-frequency current sensor is mainly used for capturing high-frequency pulse current signals generated when the partial discharge occurs to the power equipment, the Hall effect sensor is used for integrating the basic diagnosis function, the broken wire can be detected, the electromagnetic interference is also mostly overcome by adopting external hardware filtering, the self-electricity-taking technology is adopted, the passive wireless measurement is realized, the long-distance wireless signal transmission can be realized by exciting the high-frequency electromagnetic waves through displacement current, and an external power supply and a traditional antenna are not needed. The high-frequency current sensor needs to work in a strong electromagnetic environment of a transformer substation, a power frequency electromagnetic field, transient electromagnetic pulses generated by switching operation and multiple interference sources of wireless communication signals exist on site, a special protection structure is not arranged on a sensor shell, an effective electromagnetic shielding layer is lacked, external electromagnetic interference is extremely easy to enter the sensor, a signal acquisition circuit is invaded, meanwhile, risks of dust accumulation and moisture invasion are also faced, the shell is lacked in sealing and protection structures, external dust can be directly attached to the surface of an internal circuit board of the sensor and the surface of a magnetic core, the transmission characteristics of the high-frequency signals are affected, moisture invasion can possibly cause insulation performance to be reduced, the shell without the protection structure is poor in shock resistance, the magnetic core is easy to crack, the service life and measurement stability of the sensor are directly affected, and the intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions and the packaging structure thereof are designed for the purpose. Disclosure of Invention The invention aims to provide an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions and a packaging structure thereof, so as to solve the problems that the external electromagnetic interference provided by the background technology is easy to enter the sensor and invade a signal acquisition circuit, meanwhile, the risk of dust accumulation and moisture invasion is also faced, a shell lacks a sealing and protecting structure, external dust can be directly attached to the surface of a circuit board and a magnetic core in the sensor, the transmission characteristic of a high-frequency signal is influenced, and the insulation performance is possibly reduced due to moisture invasion. In order to achieve the above purpose, the invention provides a technical scheme that an intelligent high-frequency current sensor with self-diagnosis and wireless transmission functions comprises; A sensor body; A first cover plate arranged on one side of the sensor body, a second cover plate arranged on the other side of the sensor body and used for wrapping and protecting the two sides of the top of the sensor body, the first cover plate and the second cover plate are respectively provided with an insulating layer, and the insides of the first cover plate and the second cover plate are respectively provided with a compression-resistant layer for enhancing the compression resistance of the first cover plate and the second cover plate; one side of second cover plate is provided with a plurality of magnet strips, one side of first cover plate is provided with the magnet board, and a plurality of magnet strips are connected with magnet board magnetism for strengthen the steadiness after first cover plate and the laminating of second cover plate. Preferably, two positioning frames are arranged on two sides of the sensor body, two limit bolts are arranged at the tops of four positioning frames, the two limit bolts are used for installing the sensor body and application equipment, and a wire