CN102005351A - Drop-out fuse - Google Patents
Drop-out fuse Download PDFInfo
- Publication number
- CN102005351A CN102005351A CN2010105831304A CN201010583130A CN102005351A CN 102005351 A CN102005351 A CN 102005351A CN 2010105831304 A CN2010105831304 A CN 2010105831304A CN 201010583130 A CN201010583130 A CN 201010583130A CN 102005351 A CN102005351 A CN 102005351A
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- CN
- China
- Prior art keywords
- fuse
- fusion tube
- fuse wire
- tube
- extension arm
- Prior art date
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Abstract
The invention discloses a drop-out fuse which comprises a lower rotating part, wherein the lower rotating part comprises a fuse tube; a fuse wire is arranged in the fuse tube; the fuse wire is fixed on a fixed shell through an elastic support piece arranged on the rotating shaft; the lower part of the fuse tube is provided with an extension arm; and the protruding part at the end of the extension arm is buckled with a counteraction elastic piece. In the switching-on process, the protruding part at the end of the extension arm and the counteraction elastic piece act simultaneously, so that the stroke of the fuse wire is not quickly increased, thereby eliminating the influence of the tension on the fuse wire during the switching-on operation; and thus, the fuse wire can not be easily broken by pulling. When the fuse wire is blown out normally, the tension elastic piece returns, connection points are separated, the stroke of the fuse tube moves down, and the fuse tube falls off under the action of dead weight so as to quickly disengage from the power source.
Description
Technical field
The invention belongs to power industry and join the power supply unit technical field, particularly a kind of fuse switch.
Background technology
Fall insurance is because of cheap, and is easy to maintenance, be widely used in distribution transformer control, the protection in the middle of.Though various fall insurance overall structure has in the market had bigger improvement, but following common defective is arranged all: 1. when changing fuse, because the rotation of fuse place along with the housing pin screw mandrel fixed and compressed in the fusion tube end, cause fuse to draw tighter and tighter, cause fuse to be broken, sometimes needing to change the several fuses of several can be successful, causes great waste, influences power supply reliability; 2. when the fall insurance closing operation, because fusion tube bottom moving contact and fixed contact joint portion are easy to generate resistance, this position is subjected to the influence than hightension when making combined floodgate, and moment is broken high voltage fuse, the failure of closing a floodgate, and operation sometimes all is difficult to successfully several times.Present solution: (1) is incorporated high voltage fuse into a nylon rope and is prevented to break to increase fuse intensity; (2) increase fuse value, highlight mechanical strength; (3) the movable position of fusion tube bottom contact is fixing with the iron wire binding.Above solution causes the fall insurance performance to reduce easily, even loses the protection to transformer, causes causing the damage of transformer and power supply reliability to reduce.
Summary of the invention
The object of the present invention is to provide a kind ofly overhaul conveniently, safe and reliable, the fuse switch that can not damage copper cash.
A kind of fuse switch, comprise the bottom rotating part, described bottom rotating part comprises fusion tube, in the described fusion tube fuse is set, described fuse is fixed on the solid shell by the resiliency supported sheet that is arranged on the rotation axis, describedly in the fusion tube bottom one adjutage is set, the end bosses position of described adjutage and reaction shell fragment snapping.
Because the present invention is provided with an adjutage described in the fusion tube bottom, the end bosses position of described adjutage and reaction shell fragment snapping, in the process of closing a floodgate, the end bosses position and the reaction shell fragment of adjutage move simultaneously, the stroke of fuse does not increase fast, tension force is to the influence of fuse when having eliminated closing operation, and fuse is difficult for breaking.When fuse normally fused, the tension force shell fragment returned, and contact separates, and the fusion tube stroke moves down, and drops under fusion tube deadweight situation, hightails power supply.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of fuse switch, comprise the bottom rotating part, described bottom rotating part comprises fusion tube 1, in the described fusion tube 1 fuse 2 is set, described fuse 2 is fixed on the solid shell 8 by the resiliency supported sheet 3 that is arranged on the rotation axis 6, describedly in fusion tube 1 bottom one adjutage 4 is set, the end bosses position 5 and reaction shell fragment 7 snappings of described adjutage 4.Because the present invention is provided with an adjutage described in the fusion tube bottom, the end bosses position of described adjutage and reaction shell fragment snapping, in the process of closing a floodgate, the end bosses position and the reaction shell fragment of adjutage move simultaneously, the stroke of fuse does not increase fast, tension force is to the influence of fuse when having eliminated closing operation, and fuse is difficult for breaking.When fuse normally fused, the tension force shell fragment returned, and contact separates, and the fusion tube stroke moves down, and drops under fusion tube deadweight situation, hightails power supply.
With the High-Voltage Insulation pull bar fusion tube is taken off when changing fuse, fuse is passed from fusion tube, then the tension force shell fragment is pulled down round about, an end clockwise direction of fuse is around in housing pin cap pad bottom, tighten nut, fuse is strained and fixed.The fusion tube of more finishing changing fuse is held up with insulated tension pole, put into fall insurance bottom draw-in groove, carry out closing operation then, once success.And adapting to the technological transformation of all 35KV and the various fall insurance structures of 10KV at present, the fusion tube structure after the improvement adapts to the fuse of various discharge capacities, does not have the fuse tensile phenomenon that breaks and close a floodgate again.
Claims (1)
1. fuse switch, comprise the bottom rotating part, described bottom rotating part comprises fusion tube, in the described fusion tube fuse is set, described fuse is fixed on the solid shell by the resiliency supported sheet that is arranged on the rotation axis, it is characterized in that: describedly in the fusion tube bottom one adjutage is set, the end bosses position of described adjutage and reaction shell fragment snapping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010583130.4A CN102005351B (en) | 2010-12-11 | 2010-12-11 | Fuse switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010583130.4A CN102005351B (en) | 2010-12-11 | 2010-12-11 | Fuse switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102005351A true CN102005351A (en) | 2011-04-06 |
| CN102005351B CN102005351B (en) | 2016-06-08 |
Family
ID=43812612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010583130.4A Expired - Fee Related CN102005351B (en) | 2010-12-11 | 2010-12-11 | Fuse switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102005351B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10334788A (en) * | 1997-06-04 | 1998-12-18 | Fujitsu Kiden Ltd | Fuse holder |
| CN2354237Y (en) * | 1997-09-11 | 1999-12-15 | 刘大州 | Fuse-element force-reducing device for high-voltage drop type switch |
| CN2485783Y (en) * | 2001-06-13 | 2002-04-10 | 中电联北京实业开发总公司电器开关厂 | Drop assemble switch with lightning, overload and short circuit device |
| CN2743963Y (en) * | 2004-10-13 | 2005-11-30 | 李英凯 | Fuse |
| CN201117606Y (en) * | 2007-10-28 | 2008-09-17 | 耿红兵 | High-voltage drop-off fuse |
| CN201887001U (en) * | 2010-12-11 | 2011-06-29 | 河南省电力公司南阳供电公司 | Drop-out fuse |
-
2010
- 2010-12-11 CN CN201010583130.4A patent/CN102005351B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10334788A (en) * | 1997-06-04 | 1998-12-18 | Fujitsu Kiden Ltd | Fuse holder |
| CN2354237Y (en) * | 1997-09-11 | 1999-12-15 | 刘大州 | Fuse-element force-reducing device for high-voltage drop type switch |
| CN2485783Y (en) * | 2001-06-13 | 2002-04-10 | 中电联北京实业开发总公司电器开关厂 | Drop assemble switch with lightning, overload and short circuit device |
| CN2743963Y (en) * | 2004-10-13 | 2005-11-30 | 李英凯 | Fuse |
| CN201117606Y (en) * | 2007-10-28 | 2008-09-17 | 耿红兵 | High-voltage drop-off fuse |
| CN201887001U (en) * | 2010-12-11 | 2011-06-29 | 河南省电力公司南阳供电公司 | Drop-out fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102005351B (en) | 2016-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| CB02 | Change of applicant information |
Address after: 473000 Henan City, Nanyang province people's North Road, No. 268 Applicant after: Nanyang Power Supply Company, State Grid Henan Electric Power Company Address before: 473000 Henan City, Nanyang province people's North Road, No. 268 Applicant before: Henan Electric Power Company Nanyang Power Supply Branch |
|
| COR | Change of bibliographic data | ||
| 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: 20160608 Termination date: 20191211 |