CN207248931U - New capacitive casing signals detection sensor fixing body - Google Patents
New capacitive casing signals detection sensor fixing body Download PDFInfo
- Publication number
- CN207248931U CN207248931U CN201721241584.7U CN201721241584U CN207248931U CN 207248931 U CN207248931 U CN 207248931U CN 201721241584 U CN201721241584 U CN 201721241584U CN 207248931 U CN207248931 U CN 207248931U
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- China
- Prior art keywords
- installation housing
- housing
- connector
- internal
- cylinder
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
It the utility model is related to a kind of new capacitive casing signals detection sensor fixing body.There is installation inconvenience in existing apparatus, signal attenuation is big, has the defects of security risk.The utility model includes grounded metal cap, connector installation housing, sensor installation housing, the internal and external threads bridgeware being threadedly coupled.Connector installation housing is step circles cylindricality, housing cavity is divided into upper and lower two parts by middle partition, the center of partition is provided with BNC connector mounting hole, and grounded metal cap is threadedly coupled with the top of connector installation housing.Sensor installation housing includes outer barrel, and outer barrel is divided into upper and lower two cylinders by partition plate, end shield wiring cylinder is coaxially arranged with lower cylinder, sensor installation housing both ends install housing with connector respectively and internal and external threads bridgeware is threadedly coupled.The utility model uses integrated sealing structure, and shielding properties is superior, good in anti-interference performance, and each component contact is reliable, securely and reliably, can long-time service.
Description
Technical field
The utility model belongs to high pressure detection technique field, and in particular to a kind of new capacitive casing signals detection sensor
Fixing body.
Background technology
Casing failure is the one of the major reasons for causing electrical equipment fault to have a power failure.The state of insulation master of detection casing at present
If detected by tradition preventive trial, but the prerun test period is grown, it is difficult to find the potential event of operation middle sleeve in time
Barrier.In general, bottom shielding of bushing mainly has two kinds of structures, and one kind is external thread structure, and one kind is internal thread structure, and both of which is led to
Cross bottom shielding of bushing ground connection lid reliable ground.
Casing partial discharge detection mainly carries out high frequency Partial discharge signal collection by bottom shielding of bushing, has related personnel at present and grinds
Study carefully and a kind of device in bottom shielding of bushing collection signal, mainly change bottom shielding of bushing ground structure, extend bottom shielding of bushing ground connection
The modes such as line, gather the signals such as electric current, the phase of bottom shielding of bushing.There is installation inconvenience in existing device, signal attenuation is big, detects
Efficiency is low, there are the defects of security risk.
The content of the invention
The purpose of this utility model is aiming at the deficiencies in the prior art, there is provided a kind of new capacitive casing signals detection passes
Sensor fixing body.
The utility model includes grounded metal cap, connector installation housing, sensor installation housing, the inside and outside spiral shell being threadedly coupled
Line bridgeware.
The cylinder that the grounded metal cap is one end open, one end is closed, inner wall are tapped with internal thread.
Described connector installation housing be step circles cylindricality, the both ends open of housing, by the partition of centre by housing
Chamber is divided into upper and lower two parts vertically, and the center of partition is provided with BNC connector mounting hole；Connector installation housing is metal material
The entirety system of washing, the outer wall of its upper part is externally threaded, the inner wall of lower part is tapped with internal thread.
Grounded metal cap is threadedly coupled with the top of connector installation housing；Metal cap and connector installation housing are grounded after tightening
Connect and turn on.
Described sensor installation housing is the cylindrical shape of both ends open, including outer barrel, in outer barrel and with it is axially vertical
Outer barrel is divided into upper and lower two cylinders by partition plate, and lead perforation is provided with partition plate；The outer wall on the top of outer barrel is externally threaded,
It is threadedly coupled with connector installation housing, forms the installation cavity for mounting testing circuit and BNC connector.
End shield wiring cylinder is coaxially arranged with the sensor installation housing lower cylinder, one end of end shield wiring cylinder leads to
Partition plate closing is crossed, the other end opens；The sensor installation cavity of annular is formed between end shield wiring cylinder and outer barrel.
Outer barrel, partition plate, the end shield wiring cylinder of sensor installation housing are integrally formed, and system is integrally washed for metal material.
The inner wall of the outer barrel lower part of the sensor installation housing is tapped with internal thread；Internal and external threads bridgeware is two sections
Step cylinder, the outer wall of two sections of cylinders are externally threaded, and the center of internal and external threads bridgeware is provided with through hole, through hole it is interior
Footpath is more than the outside diameter of end shield wiring cylinder；Sensor installation housing is threadedly coupled with internal and external threads bridgeware.
The utility model uses integrated sealing structure, and shielding properties is superior, good in anti-interference performance, and each component contact can
Lean on, can guarantee that effective grounding, and oil resistant, solvent resistant and high-low temperature resistant, it is safe and reliable, can long-time service, effectively adapt to existing
Field environment.Whole device forms most short grounding path, easy for installation, signal attenuation in the case where not changing original earthing mode
It is small.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Embodiment
As shown in Figure 1, a kind of new capacitive casing signals detection sensor fixing body, include the grounded metal of threaded connection
Cap 1, connector installation housing 2, sensor installation housing 3, internal and external threads bridgeware 4.
The cylinder that the grounded metal cap 1 is one end open, one end is closed, inner wall are tapped with internal thread.
Described connector installation housing 2 be step circles cylindricality, the both ends open of housing, by the partition 2-1 of centre by shell
Intracoelomic cavity is divided into upper and lower two parts vertically, and the center for separating 2-1 is provided with BNC connector mounting hole 2-2.Connector installs housing 2
Integrally wash system for metal material, the outer wall of its upper part is externally threaded, the inner wall of lower part is tapped with internal thread.
Grounded metal cap 1 is threadedly coupled with the top of connector installation housing 2；Metal cap 1 is grounded after tightening to install with connector
Housing 2 connects and turns on.
Described sensor installation housing 3 is the cylindrical shape of both ends open, including in outer barrel 3-1, outer barrel 3-1 and and axis
Outer barrel 3-1 is divided into upper and lower two cylinders to vertical partition plate 3-2, lead perforation is provided with partition plate 3-2；Outer barrel 3-1's is upper
The outer wall in portion is externally threaded, and is threadedly coupled with connector installation housing 2, is formed the peace for mounting testing circuit and BNC connector
Behave affectedly 3-3, and end face junction is sealed by sealing ring.
End shield wiring cylinder 3-4, one end of end shield wiring cylinder 3-4 are coaxially arranged with sensor installation 3 lower cylinder of housing
Closed by partition plate 3-2, the other end opens；The sensor installation cavity 3- of annular is formed between end shield wiring cylinder 3-4 and outer barrel 3-1
The side wall of 5, sensor installation cavity 3-5 are provided with the groove or projection of annular, for installing sensor diaphragm.
Outer barrel 3-1, partition plate 3-2, the end shield wiring cylinder 3-4 of sensor installation housing 3 are integrally formed, and are that metal material is whole
The body system of washing.
The inner wall of the outer barrel 3-1 lower parts of sensor installation housing 3 is tapped with internal thread；Internal and external threads bridgeware 4 is two sections
Step cylinder, the outer wall of two sections of cylinders are externally threaded, and there are through hole 4-1, through hole 4- in the center of internal and external threads bridgeware 4
1 internal diameter is more than the outside diameter of end shield wiring cylinder 3-4；Sensor installation housing 3 is threadedly coupled with internal and external threads bridgeware 4, end face
Junction is sealed by sealing ring.
In work, BNC connector is installed on partition 2-1, detection circuit is arranged in installation cavity 3-3, and high frequency partial discharge passes
Sensor or low frequency dielectric loss sensor are arranged in sensor installation cavity 3-5, and punching is nested with end shield wiring cylinder 3-4；If
The end shield ground connection lid of transformer is external screw thread, and the bottom shielding of bushing exit of transformer is stretched into end shield wiring cylinder 3-4, at the same time will
Sensor installation housing 3 is directly threadedly coupled with end shield ground connection lid, you can starts to test.If the end shield ground connection lid of transformer is
Internal thread, then install housing 3 by sensor and be threadedly coupled by internal and external threads bridgeware 4 with end shield ground connection lid.
In use, by the bottom shielding of bushing exit alignment end shield wiring cylinder 3-4 center insertions of capacitive casing, connect by rotation
Ground screw thread causes bottom shielding of bushing exit and its reliable contacts, and sensor is installed housing 3 and is reliably connected with bottom shielding of bushing ground connection lid,
So that bottom shielding of bushing exit is sleeved on earth-return circuit with bottom shielding of bushing ground connection cap-shaped into reliable earth-return circuit, and by punching
Sensor detection signal, most short grounding path is formed in the case where not changing original earthing mode.
Claims (4)
1. new capacitive casing signals detection sensor fixing body, includes grounded metal cap (1), the connector mounting shell of threaded connection
Body (2), sensor installation housing (3), internal and external threads bridgeware (4)；It is characterized in that：
The cylinder that the grounded metal cap (1) is one end open, one end is closed, inner wall are tapped with internal thread；
Described connector installation housing (2) be step circles cylindricality, the both ends open of housing, by the partition (2-1) of centre by shell
Intracoelomic cavity is divided into upper and lower two parts vertically, and the center of partition (2-1) is provided with BNC connector mounting hole (2-2)；Connector is installed
Housing (2) integrally washes system for metal material, and the outer wall of its upper part is externally threaded, the inner wall of lower part is tapped with internal thread；
Grounded metal cap (1) is threadedly coupled with the top of connector installation housing (2)；Metal cap (1) is grounded after tightening with connector to pacify
Dress housing (2) connects and turns on；
Described sensor installation housing (3) is the cylindrical shape of both ends open, including outer barrel (3-1), in outer barrel (3-1) and with
Outer barrel (3-1) is divided into upper and lower two cylinders by axially vertical partition plate (3-2), and lead perforation is provided with partition plate (3-2)；Outside
The outer wall on the top of cylinder (3-1) is externally threaded, and is threadedly coupled with connector installation housing (2), and formation is used for mounting testing circuit
And the installation cavity (3-3) of BNC connector；
End shield wiring cylinder (3-4), end shield wiring cylinder (3- are coaxially arranged with described sensor installation housing (3) lower cylinder
4) one end is closed by partition plate (3-2), and the other end opens；Annular is formed between end shield wiring cylinder (3-4) and outer barrel (3-1)
Sensor installation cavity (3-5)；
Outer barrel (3-1), partition plate (3-2), the end shield wiring cylinder (3-4) of sensor installation housing (3) are integrally formed, and are metal material
The overall system of washing of material；
The inner wall of outer barrel (3-1) lower part of the sensor installation housing (3) is tapped with internal thread；Internal and external threads bridgeware (4)
For two sections of step cylinder, the outer wall of two sections of cylinders is externally threaded, and the center of internal and external threads bridgeware (4) is provided with logical
Hole (4-1), the internal diameter of through hole (4-1) are more than the outside diameter of end shield wiring cylinder (3-4)；Sensor installation housing (3) and internal and external threads
Bridgeware (4) is threadedly coupled.
2. new capacitive casing signals detection sensor fixing body as claimed in claim 1, it is characterised in that：The connector
Installation housing (2) is provided with sealing ring with the endface that sensor installation housing (3) is connected.
3. new capacitive casing signals detection sensor fixing body as claimed in claim 1, it is characterised in that：The sensor
Installation housing (3) is provided with sealing ring with the endface that internal and external threads bridgeware (4) is connected.
4. new capacitive casing signals detection sensor fixing body as claimed in claim 1, it is characterised in that：The sensing
The side wall of device installation cavity (3-5) is provided with the groove or projection of annular, for installing sensor diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721241584.7U CN207248931U (en) | 2017-09-26 | 2017-09-26 | New capacitive casing signals detection sensor fixing body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721241584.7U CN207248931U (en) | 2017-09-26 | 2017-09-26 | New capacitive casing signals detection sensor fixing body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207248931U true CN207248931U (en) | 2018-04-17 |
Family
ID=61886868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721241584.7U Expired - Fee Related CN207248931U (en) | 2017-09-26 | 2017-09-26 | New capacitive casing signals detection sensor fixing body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207248931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418541A (en) * | 2021-06-22 | 2021-09-21 | 北京卫星环境工程研究所 | Butt-joint sealing structure of on-orbit sensor |
-
2017
- 2017-09-26 CN CN201721241584.7U patent/CN207248931U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418541A (en) * | 2021-06-22 | 2021-09-21 | 北京卫星环境工程研究所 | Butt-joint sealing structure of on-orbit sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |