CN210775724U - Novel partial discharge sensor - Google Patents
Novel partial discharge sensor Download PDFInfo
- Publication number
- CN210775724U CN210775724U CN201921091005.4U CN201921091005U CN210775724U CN 210775724 U CN210775724 U CN 210775724U CN 201921091005 U CN201921091005 U CN 201921091005U CN 210775724 U CN210775724 U CN 210775724U
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- Prior art keywords
- radio frequency
- flange
- connector
- frequency connector
- connecting sleeve
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- 239000000523 sample Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000011521 glass Substances 0.000 claims description 13
- 229910000833 kovar Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 8
- CFOAUMXQOCBWNJ-UHFFFAOYSA-N [B].[Si] Chemical compound [B].[Si] CFOAUMXQOCBWNJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 8
- 229910052796 boron Inorganic materials 0.000 description 8
- 229910052710 silicon Inorganic materials 0.000 description 8
- 239000010703 silicon Substances 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
A novel partial discharge sensor comprises a sensor probe and a flange, wherein a sensing unit and a feed connector are arranged in the sensor probe; the flange is provided with a radio frequency connector; one end of the connecting sleeve is connected with the sensor probe, the other end of the connecting sleeve is connected with the radio frequency connector, and a radio frequency signal cable is arranged in the connecting sleeve; one end of the radio frequency signal cable is inserted into the feed connector, and the other end of the radio frequency signal cable is inserted into the radio frequency connector. Through the structure, the utility model solves the technical problems of long sealing line, large overall size and high sealing failure probability existing in the prior art; the novel partial discharge sensor is simple in structure, small in size and good in sealing and insulating effects.
Description
Technical Field
The utility model relates to an intelligence high tension switchgear field, especially intelligent GIS equipment especially relate to a novel partial discharge sensor.
Background
An ultrahigh frequency (UHF) novel partial discharge sensor for GIS (gas insulated switchgear) is a sensor for specially monitoring partial discharge in the GIS, and realizes monitoring of a partial discharge phenomenon by receiving electromagnetic wave signals of an UHF frequency band accompanied by partial discharge in the GIS through a sensing unit. The signal is transmitted out of the GIS cavity through a radio frequency signal connector. The GIS is filled with insulating gas (such as SF6) with certain pressure, and the built-in sensor is realized by installing an induction probe of the sensor in a GIS cavity, so that the problem of sealing when an electric signal of the sensor is transmitted to the outside of the GIS cavity needs to be solved. At present, a built-in novel partial discharge sensor configured in a GIS has a signal connector with a conventional structure and no sealing function no matter the sensor is produced domestically or abroad. The integral sealing of the sensor also adopts a conventional technical method, and is characterized in that a sealing area is arranged at the periphery of the signal connector, so that the length of a sealing line is increased, the integral size is increased, and the probability of sealing failure is higher because two or more seals are required due to different sensor structures.
Disclosure of Invention
In order to solve the problems, the utility model provides a novel partial discharge sensor, which comprises a sensor probe and a flange, wherein a sensing unit and a feed connector are arranged in the sensor probe; the flange is provided with a radio frequency connector; one end of the connecting sleeve is connected with the sensor probe, the other end of the connecting sleeve is connected with the radio frequency connector, and a radio frequency signal cable is arranged in the connecting sleeve; one end of the radio frequency signal cable is inserted into the feed connector, and the other end of the radio frequency signal cable is inserted into the radio frequency connector. Through the structure, the utility model provides a sealed line length, whole size, the high technical problem of probability of sealed inefficacy that exist among the prior art.
In order to realize the purpose, the utility model discloses a technical scheme be: novel partial discharge sensor, including sensor probe and flange, its characterized in that: a sensing unit and a feed connector are arranged in the sensor probe; the flange is provided with a radio frequency connector; one end of the connecting sleeve is connected with the sensor probe, the other end of the connecting sleeve is connected with the radio frequency connector, and a radio frequency signal cable is arranged in the connecting sleeve; one end of the radio frequency signal cable is inserted into the feed connector, and the other end of the radio frequency signal cable is inserted into the radio frequency connector.
A disc is arranged at the lower part of the sensor probe, and a through hole is formed in the middle of the disc; the upper end of the connecting sleeve is inserted into the sensor probe through the through hole and extends to the position of the feed connector; the upper end of the connecting sleeve is connected and positioned with the sensor probe and the disc through threads on the outer side.
The radio frequency connector is integrally a cylinder, a clamping ring is arranged on the outer side of the upper part of the cylinder, and a positioning column extends out of the lower surface of the clamping ring; a through hole is formed in the middle of the flange, and grooves corresponding to the positions of the clamping ring and the positioning column are formed in the outer side of the through hole; the radio frequency connector is arranged in a through hole of the flange, the clamping ring and the lower positioning column are embedded into the groove for positioning, and the upper end and the lower end of the radio frequency connector are exposed out of the flange.
The flange is provided with a connecting pressing plate, the connecting pressing plate is pressed on the upper part of the clamping ring and is connected to the flange through a bolt, and the radio frequency connector is locked and positioned; the middle of the connecting pressing plate is provided with a through hole, and the upper end of the radio frequency connector penetrates through the through hole of the connecting pressing plate and is arranged in the connecting sleeve; the lower end of the connecting sleeve is connected with the inner side of the through hole of the connecting pressing plate through external threads.
The radio frequency connector comprises an outer metal shell and an inner signal wire; the opposite end of the signal wire and the radio frequency signal cable is provided with a cable socket, the outer side of the lower part of the cable socket is wrapped with high-silicon boron glass, the inner surface of the metal shell at the corresponding position outside the high-silicon boron glass is provided with a Kovar alloy ring, and sealing insulation is carried out through the high-silicon boron glass and the Kovar alloy ring.
And a sealing ring is arranged between the outer side of the radio frequency connector and the flange.
The utility model has the advantages that:
the utility model discloses an above-mentioned structure provides a novel partial discharge sensor, on the basis that need not increase outside volume, provides an insulating sealed effectual, dismantle simple to operate's partial discharge sensor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the rf connector in fig. 1.
Detailed Description
Specific embodiments of the present invention are disclosed in detail below with reference to the description and the accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope.
The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims. Features that are described and/or illustrated with respect to an embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.
The novel partial discharge sensor comprises a sensor probe 1, a radio frequency signal cable 2, a radio frequency connector 3, a sealing ring 4, a disc 5, a connecting sleeve 6, a connecting pressing plate 7 and a flange 8.
Wherein:
the sensor probe 1 is internally provided with a sensing unit 1-1 and a feed connector 1-2.
The radio frequency connector 3 comprises a metal shell 3-1, a Kovar alloy ring 3-2, high-silicon boron glass 3-3, a clamping ring 3-4, a positioning column 3-5 and a signal line 3-6.
A radio frequency connector 3 is mounted on the flange 8, one end of a connecting sleeve 6 is connected with the sensor probe 1, the other end of the connecting sleeve is connected with the radio frequency connector 3, and a radio frequency signal cable 2 is arranged in the connecting sleeve 6; one end of the radio frequency signal cable 2 is inserted on the feed connector 1-2, and the other end is inserted on the radio frequency connector 3. The radio frequency connector 3 is integrally a cylinder, a clamping ring 3-4 is arranged on the outer side of the upper part of the cylinder, and a positioning column 3-5 extends out of the lower surface of the clamping ring 3-4; a through hole is formed in the middle of the flange 8, and grooves corresponding to the positions of the clamping rings 3-4 and the positioning columns 3-5 are formed in the outer side of the through hole; the radio frequency connector 3 is arranged in a through hole of the flange 8, the clamping ring 3-4 and the lower positioning column 3-5 are embedded into the groove for positioning, and the upper end and the lower end of the radio frequency connector 3 are exposed out of the flange 8. The induction signal in the sensor probe 1 is transmitted to the radio frequency connector 3 through the radio frequency signal cable 2 and then transmitted outwards through the radio frequency connector 3.
The radio frequency connector 3 comprises an outer metal shell 3-1 and an inner signal wire 3-6; the opposite end of the signal wire 3-6 and the radio frequency signal cable 2 is provided with a cable socket, the outer side of the lower part of the cable socket is wrapped with high silicon boron glass 3-3, and the inner surface of the metal shell 3-1 at the corresponding position of the outer side of the high silicon boron glass 3-3 is provided with a kovar alloy ring 3-2. The sealing function is achieved by sintering kovar and high-silicon boron glass in a vacuum state to form a tight bonding state on the bonding surface. The Kovar alloy ring 3-2 and the metal shell 3-1 are connected by welding, and sealing and insulation are realized by the high-silicon boron glass 3-3 and the Kovar alloy ring 3-2. Since kovar has approximately the same coefficient of thermal expansion as high-silicon boron glass over a wide range (-80 ℃ to 450 ℃), it is preferable that the signal line be sealed and insulated by plating a kovar layer on its surface and then sintering the kovar layer with high-silicon boron glass. In practice, N/SMA (M) RF connector manufactured by Middling opto-electronic technology, Inc. may also be used.
The flange 8 is provided with a connecting pressing plate 7, the connecting pressing plate 7 is pressed on the upper parts of the clamping rings 3-4 and is connected to the flange 8 through bolts to lock and position the radio frequency connector 3; a through hole is arranged in the middle of the connecting pressing plate 7, and the upper end of the radio frequency connector 3 penetrates through the through hole of the connecting pressing plate 7 and is arranged in the connecting sleeve 6; the lower end of the connecting sleeve 6 is connected with the inner side of the through hole of the connecting pressing plate 7 through external threads.
The lower part of the sensor probe 1 is provided with a disc 5, and the middle of the disc 5 is provided with a through hole; the upper end of the connecting sleeve 6 is inserted into the sensor probe 1 through the through hole and extends to the position of the feed connector 1-2; the upper end of the connecting sleeve 6 is connected and positioned with the sensor probe 1 and the disc 5 through threads on the outer side.
And a sealing ring 4 is arranged between the outer side of the radio frequency connector 3 and the flange 8, so that the sealing performance is ensured.
Claims (6)
1. Novel partial discharge sensor, including sensor probe (1) and flange (8), its characterized in that: a sensing unit (1-1) and a feed connector (1-2) are arranged in the sensor probe (1); the flange (8) is provided with a radio frequency connector (3); one end of a connecting sleeve (6) is connected with the sensor probe (1), the other end of the connecting sleeve is connected with the radio frequency connector (3), and a radio frequency signal cable (2) is arranged in the connecting sleeve (6); one end of the radio frequency signal cable (2) is inserted into the feed connector (1-2), and the other end is inserted into the radio frequency connector (3).
2. The novel partial discharge sensor of claim 1, wherein: a disc (5) is arranged at the lower part of the sensor probe (1), and a through hole is formed in the middle of the disc (5); the upper end of the connecting sleeve (6) is inserted into the sensor probe (1) through the through hole and extends to the position of the feed connector (1-2); the upper end of the connecting sleeve (6) is connected and positioned with the sensor probe (1) and the disc (5) through threads on the outer side.
3. The novel partial discharge sensor of claim 1, wherein: the radio frequency connector (3) is integrally a cylinder, a clamping ring (3-4) is arranged on the outer side of the upper part of the cylinder, and a positioning column (3-5) extends out of the lower surface of the clamping ring (3-4); a through hole is formed in the middle of the flange (8), and grooves corresponding to the positions of the clamping rings (3-4) and the positioning columns (3-5) are formed in the outer side of the through hole; the radio frequency connector (3) is arranged in a through hole of the flange (8), the clamping ring (3-4) and the lower positioning column (3-5) are embedded in the groove for positioning, and the upper end and the lower end of the radio frequency connector (3) are exposed out of the flange (8).
4. The novel partial discharge sensor of claim 3, wherein: the flange (8) is provided with a connecting pressing plate (7), the connecting pressing plate (7) is pressed on the upper part of the clamping ring (3-4) and is connected to the flange (8) through a bolt to lock and position the radio frequency connector (3); a through hole is arranged in the middle of the connecting pressing plate (7), and the upper end of the radio frequency connector (3) penetrates through the through hole of the connecting pressing plate (7) and is arranged in the connecting sleeve (6); the lower end of the connecting sleeve (6) is connected with the inner side of the through hole of the connecting pressing plate (7) through an external thread.
5. The novel partial discharge sensor of claim 1, wherein: the radio frequency connector (3) comprises an outer metal shell (3-1) and an inner signal wire (3-6); the opposite end of the signal wire (3-6) and the radio frequency signal cable (2) is provided with a cable socket, the outer side of the lower part of the cable socket is wrapped with high silicon boron glass (3-3), the inner surface of the metal shell (3-1) at the corresponding position of the outer side of the high silicon boron glass (3-3) is provided with a Kovar ring (3-2), and sealing insulation is carried out through the high silicon boron glass (3-3) and the Kovar ring (3-2).
6. The novel partial discharge sensor of claim 1, wherein: and a sealing ring (4) is arranged between the outer side of the radio frequency connector (3) and the flange (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091005.4U CN210775724U (en) | 2019-07-12 | 2019-07-12 | Novel partial discharge sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091005.4U CN210775724U (en) | 2019-07-12 | 2019-07-12 | Novel partial discharge sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210775724U true CN210775724U (en) | 2020-06-16 |
Family
ID=71049915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921091005.4U Active CN210775724U (en) | 2019-07-12 | 2019-07-12 | Novel partial discharge sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210775724U (en) |
-
2019
- 2019-07-12 CN CN201921091005.4U patent/CN210775724U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20231024 Granted publication date: 20200616 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20240117 Granted publication date: 20200616 |