CN218630062U

CN218630062U - High-voltage insulating sleeve partial discharge detection device

Info

Publication number: CN218630062U
Application number: CN202222892236.3U
Authority: CN
Inventors: 陈海兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-03-14
Anticipated expiration: 2032-11-01

Abstract

The utility model discloses a high-voltage insulation sleeve partial discharge detection device, including the installation shell and install the flexible antenna in the installation shell, the installation shell is flexible material, and the one end of installation shell is fixed with the banding head, and the one end that the banding head was kept away from to the installation shell is fixed with the banding strip. The flexible antenna is packaged in the flexible mounting shell, the binding head and the binding strip are fixed at two ends of the flexible mounting shell, so that the flexible antenna can be fixed on the outer sides of the insulating sleeves with different diameters, the mounting convenience of the partial discharge detection device is improved, and the mounting cost is reduced; through the arrangement of the tongue plate, the ribbon can be conveniently detached, the installation error is avoided, and the use cost is reduced.

Description

High-voltage insulation sleeve partial discharge detection device

Technical Field

The utility model relates to a detection device technical field is put in the office, especially relates to a high-voltage insulation sleeve partial discharge detection device.

Background

High voltage bushings, which are devices for insulating and supporting one or more conductors passing through a partition such as a wall or a box, are important devices in electrical power systems. In the manufacturing, transporting and overhauling processes of the high-voltage insulating sleeve, latent defects may remain due to various reasons; during long-term operation, defects are also gradually generated under the action of electric fields and conductor heating, mechanical damage and chemical corrosion, and atmospheric conditions. These defects can cause the occurrence of partial discharge, and if the defects are not discovered and eliminated in time, the partial discharge can cause the further deterioration of the high-voltage insulating sleeve, and finally, the partial discharge can be evolved into insulation breakdown, which brings about huge economic loss.

The existing partial discharge sensor is usually made of a hard circuit board, and the sensor cannot be well matched with a high-voltage insulating sleeve, so that the receiving capability is limited. The utility model discloses a chinese utility model patent of grant publication No. CN209746077U discloses "a sensor is put in flexible UHF office", changes the stereoplasm circuit board formula UHF antenna in putting the sensor in the current office into flexible UHF antenna, has realized the perfect laminating of sensor antenna and cylinder face, has improved the receptivity of sensor is put in the office greatly. But when the sensor is used, the antenna fixing plate is required to be customized according to the size of the cylindrical surface, so that the application range of the sensor is greatly reduced, and the use cost of the sensor is improved. Therefore, a high voltage bushing partial discharge detection device with strong versatility is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-voltage insulation sleeve partial discharge detection device to solve the technical problem who mentions in the background art, the utility model discloses a purpose is realized through following technical scheme:

a high-voltage insulating sleeve partial discharge detection device comprises an installation shell and a flexible antenna installed in the installation shell, wherein the installation shell is made of flexible materials, a binding head is fixed at one end of the installation shell, and a binding strip is fixed at one end, far away from the binding head, of the installation shell.

Furthermore, the flexible antenna comprises a flexible substrate, a radiation layer and a ground layer, wherein the radiation layer is laid on the upper side of the flexible substrate, the ground layer is laid on the lower side of the flexible substrate, the radiation layer and the ground layer are connected with the SMA connector through the microstrip balun, and the SMA connector is connected with the coaxial cable.

Furthermore, a hollowed hole is formed in the binding head, a tongue plate is installed in the hollowed hole, the two sides of the tongue plate are fixed in the hollowed hole through a connecting column, a slot is formed in one side of the hollowed hole, and a clamping block is fixed on one side, close to the slot, of the tongue plate.

Furthermore, the SMA joint is fixed on one side of the mounting shell, which is close to the strapping head.

The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:

the flexible antenna is packaged in the flexible mounting shell, the binding head and the binding strip are fixed at two ends of the flexible mounting shell, so that the flexible antenna can be fixed on the outer sides of the insulating sleeves with different diameters, the mounting convenience of the partial discharge detection device is improved, and the mounting cost is reduced; through the arrangement of the tongue plate, the ribbon can be conveniently detached, the installation error is avoided, and the use cost is reduced.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a cross-sectional view of an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a rear perspective view of an embodiment of the present application;

FIG. 4 is a front perspective view of an embodiment of the present application;

fig. 5 is a partially enlarged view of fig. 4.

Identified in the attached figures: 1. mounting a shell; 11. a base plate; 12. a case body; 2. a flexible antenna; 21. a flexible substrate; 22. a radiation layer; 23. a ground plane; 24. a microstrip balun; 3. a tie head; 31. hollowing out holes; 32. a tongue plate; 33. connecting columns; 34. a slot; 35. a clamping block; 4. binding a tape; 41. a clamping groove; 5. an SMA joint; 6. a coaxial cable.

Detailed Description

For better understanding of the above technical solutions, the following detailed descriptions will be made in conjunction with the accompanying drawings and the detailed description of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The partial discharge detection device for the insulating sleeve shown in fig. 1-5 comprises an installation shell 1 and a flexible antenna 2 installed in the installation shell 1, wherein the installation shell 1 is made of flexible materials, a binding head 3 is fixed at the left end of the installation shell 1, and a binding strip 4 is fixed at the right end of the installation shell 1.

Particularly, the installation shell 1 includes bottom plate 11 and fixes box body 12 on bottom plate 11, and bottom plate 11, ribbon head 3, ribbon strip 4 are the nylon material, and bottom plate 11 makes with ribbon head 3, ribbon strip 4 integrated into one piece. Box body 12 is lower part open-ended hollow shell, and box body 12 is the silica gel material to guarantee that box body 12 can follow high-voltage insulation support's face of cylinder crooked, box body 12 adhesion is on bottom plate 11, and flexible antenna 2 fixed mounting is in the rectangle space that bottom plate 11 and box body 12 enclose.

As shown in fig. 1 and 2, the flexible antenna 2 includes a flexible substrate 21, a radiation layer 22, and a ground layer 23, the flexible substrate 21 is made of polyimide, and the dielectric constant ∈ of the flexible substrate 21 _r Was 3.5. The upper side of the flexible substrate 21 is coated with a copper radiation layer 23 by etching, the lower side of the flexible substrate 21 is plated with a copper grounding layer 23 by electroplating, the radiation layer 22 and the grounding layer 23 are connected with an SMA joint 5 by a microstrip balun 24, the SMA joint 5 is connected with a coaxial cable 6, and the other end of the coaxial cable 6 is connected with a signal processing device. The microstrip balun 24 and the SMA contact 5 are impedance-matched by 50 Ω. The radiation layer 22 is butterfly-shaped, the ground layer 23 is rectangular, and the microstrip balun 24 is electrically connected with the radiation layer 22 and the ground layer 23 respectively to form a side feed structure. Preferably, the SMA connector 5 is fixed on one side of the mounting shell 1 close to the binding head 3, so that the coaxial cable 6 and the binding strip 4 penetrating through the binding head 3 are conveniently fixed, and the stability of the coaxial cable 6 is improved.

As shown in fig. 1 and 3, a clamping groove 41 is formed in the lower side of the ribbon strip 4, the clamping groove 41 is arranged along the length direction of the ribbon strip 4, and a plurality of clamping teeth are uniformly arranged in the clamping groove 41.

As shown in fig. 4-5, a rectangular hollow hole 31 is formed in the tie head 3, a tongue plate 32 is installed in the hollow hole 31, two sides of the tongue plate 32 are fixed in the hollow hole 31 through a connecting column 33, a slot 34 is formed in one side of the hollow hole 31, a clamping block 35 is fixed on one side of the tongue plate 33 close to the slot 34, and the clamping block 35 is matched with the clamping tooth.

When the device is used, the ribbon strip 4 is inserted into the slot 34 of the ribbon head 3, the ribbon strip 4 is tensioned, and the clamping block 35 is matched with the clamping tooth to realize the confidential adhesion of the detection device and the high-voltage insulating sleeve;

when pressing the one end that hyoplastron 33 kept away from slot 34 hard, fixture block 35 breaks away from with the joint tooth to can take ribbon strip 4 out from the ribbon head, dismantle when convenient installation is wrong, avoid causing the waste.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

the flexible antenna is packaged in the flexible mounting shell, the two ends of which are fixed with the binding head and the binding strip, so that the flexible antenna can be fixed on the outer sides of the insulating sleeves with different diameters, the convenience of mounting the partial release detection device is improved, and the mounting cost is reduced; through the arrangement of the tongue plate, the ribbon can be conveniently disassembled, so that installation errors are avoided, and the use cost is reduced.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high voltage insulation sleeve partial discharge detection device, its characterized in that, includes the installation shell and installs flexible antenna in the installation shell, the installation shell is flexible material, the one end of installation shell is fixed with the tie head, the installation shell is kept away from the one end of tie head is fixed with the tie strip.

2. The device according to claim 1, wherein the flexible antenna comprises a flexible substrate, a radiation layer and a ground layer, the radiation layer is disposed on the upper side of the flexible substrate, the ground layer is disposed on the lower side of the flexible substrate, the radiation layer and the ground layer are connected to an SMA contact through a microstrip balun, and the SMA contact is connected to a coaxial cable.

3. The device as claimed in claim 1, wherein the tie head has a hollow hole, a tongue plate is installed in the hollow hole, two sides of the tongue plate are fixed in the hollow hole through a connecting post, one side of the hollow hole has a slot, and one side of the tongue plate close to the slot has a fixture block.

4. The device as claimed in claim 2, wherein the SMA connector is fixed to the mounting case on a side thereof adjacent to the taping head.