CN103456579A - Signal output device used for oil-immersed type fuse protector - Google Patents
Signal output device used for oil-immersed type fuse protector Download PDFInfo
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- CN103456579A CN103456579A CN2013104260959A CN201310426095A CN103456579A CN 103456579 A CN103456579 A CN 103456579A CN 2013104260959 A CN2013104260959 A CN 2013104260959A CN 201310426095 A CN201310426095 A CN 201310426095A CN 103456579 A CN103456579 A CN 103456579A
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- switch
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- oil
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- 230000001012 protector Effects 0.000 title abstract 3
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 230000032683 aging Effects 0.000 claims description 3
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000010248 power generation Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
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- Fuses (AREA)
Abstract
The invention discloses a signal output device used for an oil-immersed type fuse protector. The signal output device comprises a switch cover, a microswitch and a wiring terminal. The switch cover comprises a cover plate, an outer ring connected to the front end face of the cover plate, and a switch groove connected to the front end face of the cover plate and located in the outer ring. A cable through hole communicated with the switch groove is formed in the cover plate of the switch cover. The switch cover is arranged at a back end opening of a handle in a mode that the switch groove is forward. The microswitch is arranged in the switch groove of the switch cover in a mode that a connection point operation handle of the microswitch is forward. The wiring terminal is arranged outside a base and is connected with three connection points of the microswitch through a three-core protection sleeve line penetrating through the cable through hole in the switch cover. The signal output device can output signals after the motion of the fuse protector, prevents a circuit from running in a default phase mode, and reduces safety risks.
Description
Technical Field
The invention relates to a signal output device for an oil-immersed fuse.
Background
At present, an oil-immersed fuse is mainly used for protecting a wind power generation device, but the monitoring station of the wind power generation device is far away from a wind field due to the fact that the oil-immersed fuse does not have a signal output function, so that the oil-immersed fuse cannot be fed back in time after the fuse acts, the open-phase operation of a circuit generates a safety risk, and the maintenance of the wind power generation device is difficult. At present, the society has higher and higher requirements on intellectualization, so that the development of a signal output device suitable for an oil-immersed fuse is particularly important, and the signal output device has great help for the maintenance of a wind power generation device, the reduction of safety risks and the judgment of faults.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a signal output device for an oil-immersed fuse, which can provide signal output after the fuse acts, prevent a circuit from operating in a phase-failure mode and reduce safety risks.
The purpose of the invention is realized as follows: a signal output device for an oil-immersed fuse comprises a cylindrical base with a one-way opening, and a fuse carrier and a fuse link which are sequentially arranged in the base from the opening direction of the base; the fuse carrier comprises a handle, a rear coupler connected with the front end part of the handle and fixedly arranged at the rear end of the fuse link and a front coupler fixedly arranged at the front end of the fuse link; wherein,
the signal output device comprises a switch cover, a microswitch and a wiring terminal;
the switch cover comprises a cover plate, an outer ring connected to the front end face of the cover plate and a switch groove connected to the front end face of the cover plate and located in the outer ring, a cable through hole communicated with the switch groove is formed in the cover plate of the switch cover, and the switch cover is installed at the rear port of the handle in a mode that the switch groove faces forwards;
the micro switch is arranged in a switch groove of the switch cover in a mode that a contact point operating handle of the micro switch is forward;
the wiring terminal is arranged outside the base and is connected with three contacts of the microswitch through a three-core sheath wire which penetrates through a cable perforation on the switch cover.
The signal output device for the oil-immersed fuse is characterized in that the microswitch is installed in the switch groove of the switch cover and then fixed and sealed through epoxy glue.
The signal output device for the oil-immersed fuse is characterized in that an outer ring of the switch cover is provided with an external thread which can be in threaded connection with an internal thread arranged on a rear port of the handle.
The signal output device for the oil-immersed fuse is characterized in that the outer ring of the switch cover is further sleeved with a sealing ring, so that the switch cover is packaged at the rear port of the handle.
Any one of the above signal output devices for an oil-immersed fuse is characterized in that the material of the switch cover is unsaturated polyester resin.
The signal output device for the oil-immersed fuse is characterized in that the sealing ring is made of high-temperature-resistant and aging-resistant rubber materials.
The signal output device for the oil-immersed fuse can provide signal output after the fuse acts, can accurately, effectively, quickly and intuitively observe the fusing condition in the fuse, is convenient for personnel in a wind power generation monitoring station to remotely monitor, timely knows where the fault occurs, ensures that a circuit does not generate safety risk due to phase-lacking operation, still has the characteristic of full sealing after being installed on the fuse, and is greatly helpful for the maintenance of wind power.
Drawings
FIG. 1 is a schematic structural diagram of a signal output device for an oil-immersed fuse according to the present invention;
FIG. 2 is a view taken along the line A in FIG. 1;
fig. 3 is a schematic mounting diagram of the signal output device for the oil-immersed fuse according to the invention.
Detailed Description
In order to better understand the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings by way of specific embodiments.
Referring to fig. 1 and 2, the signal output device for the oil-immersed fuse of the present invention is mounted on a fuse carrier of the fuse, and includes a switch cover 41, a micro switch 42, and a connection terminal 43; wherein:
the switch cover 41 comprises a cover plate 411, an outer ring 412 connected to the front end surface of the cover plate 411 and a switch groove 413 connected to the front end surface of the cover plate 411 and located in the outer ring 412, wherein a cable through hole communicated with the switch groove 413 is formed in the cover plate 411 of the switch cover 41; the material of the switch cover 41 is unsaturated resin polyester;
the microswitch 42 is mounted in the switch groove 413 of the switch cover 41 with its contact lever forward and fixed and sealed by epoxy glue;
the terminals 43 are provided on the outside of the switch cover 41 and are connected to three contacts of the micro switch 42 by a three-core sheath wire 44 passing through a cable penetration hole in the switch cover 41.
Referring to fig. 3, the oil-immersed fuse includes a cylindrical base 1 with a one-way opening, and a fuse carrier and a fuse link sequentially disposed in the base 1 from the opening direction of the base 1; the fuse carrier comprises a handle 2, a rear coupler connected with the front end part of the handle 2 and fixedly arranged at the rear end of the fuse, a front coupler fixedly arranged at the front end of the fuse and a linkage device 3 movably connected on the handle 2. The handle 2 comprises a handle 21 and a connecting rod 22, wherein an axial through hole is formed in the center of the handle 21, and an internal thread is formed at the rear end of the axial through hole.
The outer ring 412 of the switch cover 41 of the signal output device of the present invention is provided with an external thread so that the switch cover 41 can be screwed to the rear end of the handle 21.
In order to be suitably installed in the oil-immersed fuse, the signal output device of the present invention further includes a sealing ring 45 fitted around the outer ring 412 of the switch cover 41, so that the switch cover 41 is sealed at the rear end of the handle 21. The seal ring 45 is an O-ring and is made of a high temperature resistant, aging resistant rubber material.
The contact point operating handle of the microswitch 22 in the signal output device of the invention realizes the signal output function after contacting with the screw head of the limit screw 30 arranged in the axial through hole of the handle 2, the screw rod of the limit screw 30 is connected with the linkage device 3; when the circuit is overloaded or short-circuited, the melt in the fuse element is fused, so that the striker arranged in the fuse element loses the tensile force and pops up to push the linkage device 3 to move backwards, and the limit screw 30 touches the contact operating handle of the micro switch 22, so that the contact of the micro switch 22 is opened to realize signal output. After the oil-immersed fuse adopts the signal output device, the internal fusing condition can be accurately, effectively, quickly and intuitively observed, so that personnel in a wind power generation monitoring station can remotely monitor the oil-immersed fuse, the fault can be timely known, the circuit is ensured not to generate safety risk due to phase-failure operation, and the device still has the characteristic of full sealing after being installed on the fuse, thereby being greatly helpful for the maintenance of wind power.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should also fall within the scope of the present invention, and should be defined by the claims.
Claims (6)
1. A signal output device for an oil-immersed fuse comprises a cylindrical base with a one-way opening, and a fuse carrier and a fuse link which are sequentially arranged in the base from the opening direction of the base; the fuse carrier comprises a handle, a rear coupler connected with the front end part of the handle and fixedly arranged at the rear end of the fuse link and a front coupler fixedly arranged at the front end of the fuse link; it is characterized in that the preparation method is characterized in that,
the signal output device comprises a switch cover, a microswitch and a wiring terminal;
the switch cover comprises a cover plate, an outer ring connected to the front end face of the cover plate and a switch groove connected to the front end face of the cover plate and located in the outer ring, a cable through hole communicated with the switch groove is formed in the cover plate of the switch cover, and the switch cover is installed at the rear port of the handle in a mode that the switch groove faces forwards;
the micro switch is arranged in a switch groove of the switch cover in a mode that a contact point operating handle of the micro switch is forward;
the wiring terminal is arranged outside the base and is connected with three contacts of the microswitch through a three-core sheath wire which penetrates through a cable perforation on the switch cover.
2. The signal output device for the oil-filled fuse according to claim 1, wherein the micro switch is fixed and sealed by epoxy glue after being installed in the switch slot of the switch cover.
3. The signal output device for the oil-filled fuse according to claim 1 or 2, wherein an outer thread capable of being in threaded connection with an inner thread arranged on the rear port of the handle is arranged on an outer ring of the switch cover.
4. The signal output device for the oil-filled fuse according to claim 3, wherein a sealing ring is further sleeved on the outer ring of the switch cover, so that the switch cover is sealed at the rear port of the handle.
5. The signal output device for the oil-filled fuse according to any one of claims 1 to 4, wherein the material of the switch cover is unsaturated polyester resin.
6. The signal output device for the oil-filled fuse according to claim 4, wherein the sealing ring is made of a high-temperature-resistant and aging-resistant rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426095.9A CN103456579B (en) | 2013-09-18 | 2013-09-18 | A kind of signal output apparatus for oil fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310426095.9A CN103456579B (en) | 2013-09-18 | 2013-09-18 | A kind of signal output apparatus for oil fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103456579A true CN103456579A (en) | 2013-12-18 |
| CN103456579B CN103456579B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310426095.9A Active CN103456579B (en) | 2013-09-18 | 2013-09-18 | A kind of signal output apparatus for oil fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103456579B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943432A (en) * | 2014-04-17 | 2014-07-23 | 陕西振力电力科技有限公司 | Oil-immersed type full-range high-pressure current-limiting fuse protector with fusing indication and signal output functions |
| CN104465263A (en) * | 2014-12-22 | 2015-03-25 | 上海电器陶瓷厂有限公司 | Signal output device used for oil fuse |
| CN104484982A (en) * | 2014-12-22 | 2015-04-01 | 上海电器陶瓷厂有限公司 | Signal output method for fault of oil-immersed transformer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06231671A (en) * | 1993-01-26 | 1994-08-19 | Ferraz | Fuse cartridge |
| CN201204172Y (en) * | 2008-05-06 | 2009-03-04 | 上海置信电气股份有限公司 | High-voltage fuse suitable for underground type oil immersion distribution transformer |
| CN201655725U (en) * | 2010-03-18 | 2010-11-24 | 陕西振力电力科技有限公司 | High voltage current limiting fuse with fusing indication function |
| JP2011023298A (en) * | 2009-07-17 | 2011-02-03 | Fuji Electric Fa Components & Systems Co Ltd | Fuse blowout display device |
| CN202091624U (en) * | 2011-05-26 | 2011-12-28 | 宁波三安制阀有限公司 | Pressure annunciator |
| CN103280385A (en) * | 2013-05-20 | 2013-09-04 | 人民电器集团有限公司 | Microswitch alarming device for fuse |
-
2013
- 2013-09-18 CN CN201310426095.9A patent/CN103456579B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06231671A (en) * | 1993-01-26 | 1994-08-19 | Ferraz | Fuse cartridge |
| CN201204172Y (en) * | 2008-05-06 | 2009-03-04 | 上海置信电气股份有限公司 | High-voltage fuse suitable for underground type oil immersion distribution transformer |
| JP2011023298A (en) * | 2009-07-17 | 2011-02-03 | Fuji Electric Fa Components & Systems Co Ltd | Fuse blowout display device |
| CN201655725U (en) * | 2010-03-18 | 2010-11-24 | 陕西振力电力科技有限公司 | High voltage current limiting fuse with fusing indication function |
| CN202091624U (en) * | 2011-05-26 | 2011-12-28 | 宁波三安制阀有限公司 | Pressure annunciator |
| CN103280385A (en) * | 2013-05-20 | 2013-09-04 | 人民电器集团有限公司 | Microswitch alarming device for fuse |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943432A (en) * | 2014-04-17 | 2014-07-23 | 陕西振力电力科技有限公司 | Oil-immersed type full-range high-pressure current-limiting fuse protector with fusing indication and signal output functions |
| CN103943432B (en) * | 2014-04-17 | 2016-04-13 | 陕西振力电力科技有限公司 | The oil immersed type gamut high-voltage and current-limitation fuse that fusing instruction and signal export |
| CN104465263A (en) * | 2014-12-22 | 2015-03-25 | 上海电器陶瓷厂有限公司 | Signal output device used for oil fuse |
| CN104484982A (en) * | 2014-12-22 | 2015-04-01 | 上海电器陶瓷厂有限公司 | Signal output method for fault of oil-immersed transformer |
| CN104484982B (en) * | 2014-12-22 | 2016-09-07 | 上海电器陶瓷厂有限公司 | A kind of signal output method of oil-filled transformer fault |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103456579B (en) | 2015-08-12 |
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| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID SHANGHAI ELECTRIC POWER COMPANY Effective date: 20150217 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150217 Address after: 200071 Shanghai city Zhabei District Qingyun Road No. 517 Applicant after: Shanghai Electric Ceramic Works Co., Ltd. Applicant after: State Grid Shanghai Municipal Electric Power Company Address before: 200071 Shanghai city Zhabei District Qingyun Road No. 517 Applicant before: Shanghai Electric Ceramic Works Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |