CN207424171U - Capacitive casing signals detection sensor fixing body - Google Patents
Capacitive casing signals detection sensor fixing body Download PDFInfo
- Publication number
- CN207424171U CN207424171U CN201721241585.1U CN201721241585U CN207424171U CN 207424171 U CN207424171 U CN 207424171U CN 201721241585 U CN201721241585 U CN 201721241585U CN 207424171 U CN207424171 U CN 207424171U
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- CN
- China
- Prior art keywords
- installation housing
- housing
- sensor
- connector
- 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.)
- Expired - Fee Related
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Abstract
The utility model is related to capacitive casing signals detection sensor fixing bodies.There is installation inconvenience in existing apparatus, signal attenuation is big, has the defects of security risk.The utility model includes the grounded metal cap being threadedly coupled, connector installation housing, sensor installation housing, internal and external threads bridgeware.Connector installation housing is step circles cylindricality, housing cavity is divided into upper and lower two parts by intermediate 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, outer barrel is divided into upper and lower two cylinders by partition plate, end shield wiring cylinder is coaxially arranged in lower cylinder, hat spring is provided in end shield wiring 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 capacitive casing signals detection sensor fixing body.
Background technology
Casing failure is the one of the major reasons that electrical equipment fault is caused to have a power failure.The state of insulation master of detection casing at present
If traditional preventive trial is relied on to detect, but the prerun test period is long, it is difficult to find the potential event of operation middle sleeve in time
Barrier.In general, bottom shielding of bushing is there are mainly two types of structure, and one kind is external thread structure, and one kind is internal thread structure, is both led to
Cross bottom shielding of bushing ground connection lid reliable ground.
Casing partial discharge detection mainly carries out high frequency Partial discharge signal acquisition by bottom shielding of bushing, and existing related personnel grinds at present
Study carefully and a kind of device in bottom shielding of bushing acquisition 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.Big, detection that existing device has installation inconvenience, signal is decayed
Efficiency is low, there are the defects of security risk.
The content of the invention
The purpose of this utility model provides a kind of capacitive casing signals detection sensor aiming at the deficiencies in the prior art
Fixing body.
The utility model includes the grounded metal cap being threadedly coupled, connector installation housing, sensor installation housing, inside and outside spiral shell
Line bridgeware.
The metal cylinder that the grounded metal cap is one end open, one end is closed.
Described connector installation housing is the cylindrical housings of both ends open, by intermediate partition by housing cavity along axis
To upper and lower two parts are divided into, the center of partition is provided with BNC connector mounting hole；The connector installation housing is metal material
The entirety system of washing.
Grounded metal cap is threadedly coupled with the top of connector installation housing；Metal cap is grounded after tightening, housing is installed with connector
Connect and turn on.
The sensor installation housing is the cylindrical shape of both ends open, and partition plate is provided in sensor mounting shell body, every
Plate is set along the radial direction of sensor installation housing, the inner cavity of sensor installation housing is divided into upper and lower two parts, on partition plate
It is provided with lead perforation；The top of sensor installation housing is threadedly coupled with connector installation housing, is formed for mounting testing circuit
And the installation cavity of BNC connector.
End shield wiring cylinder is coaxially arranged in 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；In end shield wiring cylinder
It is provided with for the hat spring of fixed sleeving end shield exit.
Sensor installation housing is integrally formed with partition plate, end shield wiring cylinder, and system is integrally washed for metal material；Sensor is pacified
Dress 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 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 in the case where not changing original earthing mode, easy for installation, signal attenuation
It is small.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
As shown in Figure 1, capacitive casing signals detection sensor fixing body, generally step circles cylindricality, including being threadedly coupled
Grounded metal 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 is step circles cylindricality, the both ends open of housing, by intermediate partition 2-1 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 and lower part is externally threaded respectively.
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.
The sensor installation housing 3 is the cylindrical shape of both ends open, and partition plate 3- is provided in sensor installation housing 3
1, partition plate 3-1 are set along the radial direction of sensor installation housing 3, and the inner cavity of sensor installation housing 3 is divided into upper and lower two portions
Point, lead perforation is provided on partition plate 3-1；The inner wall of top cylinder is tapped with internal thread, is threadedly coupled with connector installation housing 2, shape
Into the installation cavity 3-2 for mounting testing circuit and BNC connectors, end face junction is sealed by sealing ring.
End shield wiring cylinder 3-3, one end of end shield wiring cylinder 3-3 are coaxially arranged in sensor installation 3 lower cylinder of housing
It is closed by partition plate 3-1, the other end opens；The sensor installation cavity 3-4 of annular is formed between end shield wiring cylinder 3-3 and outer barrel,
The side wall of sensor installation cavity 3-4 is provided with the slot or protrusion of annular, for installing sensor diaphragm.In end shield wiring cylinder 3-3
Be provided with for the hat spring 5 of fixed sleeving end shield exit, hat spring 5 is the thin-walled cylinder of elastic metallic material, side wall to
Contract, into hyperbola, side wall is vertically provided with a plurality of straight slot.
Sensor installation housing 3 and partition plate 3-1, end shield wiring cylinder 3-3 are integrally formed, and system is integrally washed for metal material.
The outer wall of the lower cylinder of sensor installation housing 3 is externally threaded；Internal and external threads bridgeware 4 is cylindrical shape, interior
Wall is two sections of step circles cylindricalitys, and two sections of inner walls are tapped with internal thread；Sensor installs housing 3 and 4 screw thread of internal and external threads bridgeware
Connection, end face junction is sealed by sealing ring.
In work, BNC connector is mounted 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 3-4, and punching is nested on end shield wiring cylinder 3-3；If
The end shield ground connection lid of transformer is internal thread, and the bottom shielding of bushing exit of transformer is stretched into end shield wiring cylinder 3-3, while will be passed
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 outer
Sensor is then installed housing 3 and is threadedly coupled by internal and external threads bridgeware 4 with end shield ground connection lid by screw thread.
In use, by the bottom shielding of bushing exit alignment end shield wiring cylinder 3-3 center insertions of capacitive casing, hat spring 5 will cover
Pipe end shield exit is held tightly, by rotating ground connection screw thread bottom shielding of bushing exit and its reliable contacts, sensor mounting shell
Body 3 is reliably connected with bottom shielding of bushing ground connection lid so that bottom shielding of bushing exit is grounded cap-shaped into reliable ground connection with bottom shielding of bushing
Circuit, and pass through the sensor detection signal that punching is sleeved on earth-return circuit, the shape in the case where not changing original earthing mode
Into most short grounding path.
Claims (7)
1. capacitive casing signals detection sensor fixing body, the grounded metal cap (1) including threaded connection, connector installation housing
(2), sensor installation housing (3), internal and external threads bridgeware (4)；It is characterized in that：
The metal cylinder that the grounded metal cap (1) is one end open, one end is closed；
Described connector installation housing (2) is the cylindrical housings of both ends open, by intermediate partition (2-1) by housing cavity
Upper and lower two parts are divided into vertically, and the center of partition (2-1) is provided with BNC connector mounting hole (2-2)；The connector installation
Housing (2) integrally washes system for metal material；
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；
The sensor installation housing (3) is the cylindrical shape of both ends open, and partition plate is provided in sensor installation housing (3)
(3-1), partition plate (3-1) set along the radial direction of sensor installation housing (3), the inner cavity of sensor installation housing (3) are divided into
Upper and lower two parts are provided with lead perforation on partition plate (3-1)；Housing is installed with connector in the top of sensor installation housing (3)
(2) it is threadedly coupled, forms the installation cavity (3-2) for mounting testing circuit and BNC connector；
End shield wiring cylinder (3-3), end shield wiring cylinder (3- are coaxially arranged in described sensor installation housing (3) lower cylinder
3) one end is closed by partition plate (3-1), and the other end opens；End shield wiring cylinder (3-3) forms the sensing of annular between outer barrel
Device installation cavity (3-4)；The hat spring (5) for fixed sleeving end shield exit is provided in end shield wiring cylinder (3-3)；
Sensor installation housing (3) is integrally formed with partition plate (3-1), end shield wiring cylinder (3-3), is integrally washed for metal material
System；Sensor installation housing (3) is threadedly coupled with internal and external threads bridgeware (4).
2. capacitive casing signals detection sensor fixing body as described in claim 1, it is characterised in that：The hat spring (5)
For the thin-walled cylinder of elastic metallic material, side wall is to contract, and into hyperbola, side wall is vertically provided with a plurality of straight slot.
3. capacitive casing signals detection sensor fixing body as described in claim 1, it is characterised in that：The sensor peace
The outer wall of the lower cylinder of dress housing (3) is externally threaded, and the internal and external threads bridgeware (4) is two sections of step cylindrical shapes,
Two sections of inner wall is tapped with internal thread.
4. capacitive casing signals detection sensor fixing body as described in claim 1, it is characterised in that：The sensor peace
The inner wall of the lower cylinder of dress housing (3) is tapped with internal thread, and the internal and external threads bridgeware (4) is two sections of step cylindrical shapes,
Two sections of inner wall is externally threaded.
5. capacitive casing signals detection sensor fixing body as described 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.
6. capacitive casing signals detection sensor fixing body as described 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.
7. capacitive casing signals detection sensor fixing body as described in claim 1, it is characterised in that：The sensor peace
Behave affectedly (3-4) side wall be provided with annular slot or protrusion, for installing sensor diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721241585.1U CN207424171U (en) | 2017-09-26 | 2017-09-26 | Capacitive casing signals detection sensor fixing body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721241585.1U CN207424171U (en) | 2017-09-26 | 2017-09-26 | Capacitive casing signals detection sensor fixing body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207424171U true CN207424171U (en) | 2018-05-29 |
Family
ID=62313975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721241585.1U Expired - Fee Related CN207424171U (en) | 2017-09-26 | 2017-09-26 | Capacitive casing signals detection sensor fixing body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207424171U (en) |
-
2017
- 2017-09-26 CN CN201721241585.1U patent/CN207424171U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 |