CN2435829Y - Isolating knife switch with temp. compensation - Google Patents
Isolating knife switch with temp. compensation Download PDFInfo
- Publication number
- CN2435829Y CN2435829Y CN 00228685 CN00228685U CN2435829Y CN 2435829 Y CN2435829 Y CN 2435829Y CN 00228685 CN00228685 CN 00228685 CN 00228685 U CN00228685 U CN 00228685U CN 2435829 Y CN2435829 Y CN 2435829Y
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- CN
- China
- Prior art keywords
- compensating
- packing ring
- switch device
- isolation switch
- parallel metal
- Prior art date
- 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 relates to an isolating knife switch with temp. compensation, which comprises a seat 1, an insulator 2, a static contact device 3, a moving contact seat 4 and a double-rescue blade type switch knife 5. The utility model is characterized in that the switch knife 5 comprises two parallel metal strips 51, 52; one side of the outer edge of each of the parallel metal strips is padded with a bimetallic strip-shaped washer 53. The utility model can make the isolating knife switch carry out temperature-pressure compensation in a wide range and keep constant contact pressure and low contact resistance between the moving and the static contacts so as to guarantee a high current to pass through the moving and the static contacts to be favorable for the secure transmission of electric energy.
Description
The utility model relates to the high-voltage switch device in the power circuit, and the high-voltage switch device of constant pressure is particularly arranged.
In power circuit, isolation switch is an important electric equipment, can make the electrical network partition running, and the isolation accident is convenient to the maintenance of manual operation and disconnection back grid equipment etc., uses very extensive.Industry often adopts metallic plate row culture static contact head device, and the metal wrench of right angle bending is made fixed contact, and its afterbody directly connects as circuit.Moving contact adopts two blade structures of saving, and its axle head connects the moving contact shaft seat by a screw rod.Two blade double as guiding devices of saving of moving contact adopt the perpendicular parallel metal lath of putting, and each connects two with two screw rods, installs the multi-turn compression spring between nut and laths of metal additional.Separate a segment distance between screw rod, so that hold fixed contact.In the time of between the fixed contact incision moving contact parallel metal lath, produce certain pressure, make dynamic and static contact Electricity Federation logical, realize the conveying of electric energy.The isolation switch of prior art adopts the multi-turn compression spring to make pressure compensation, although delivery test can meet national standard, but when bad weather condition moves down in the open air, between its dynamic and static contact owing to be subjected to the influence of mechanical oscillation and electric and magnetic oscillation, parts can produce loosening, this loosening meeting causes contact point place resistance to increase, and produces heat; When heat transferred to moving contact on two axial multi-turn compression springs of saving blade range line bolt the time, spring loses elastic force easily, makes the two hypotensions of blade to the fixed contact contact point of saving, resistance increases, and then heat increases severely; The experience of power industry shows, the contact pressure of dynamic/static contact reduces to cause that contact resistance is poly-increases, and can increase tangible power consumption when carrying hundreds of thousands of Ampere currents.This loosening-can make dynamic and static contact scorification under the vicious circle condition of heating-loosening, so that outage.
For avoiding above-mentioned the deficiencies in the prior art part, the utility model proposes a kind of isolation switch device with temperature-compensating, adopt bimetal leaf and board-like elastic force strip packing ring, make isolating switch keep constant normal pressure in wide temperature range, its dynamic and static contact contact pressure is reliable, ability with anti-mechanical oscillation and electric and magnetic oscillation, be convenient to operation, can malfunction, safe and reliable to operation, thereby keep lower contact resistance and power consumption, guarantee the safe transmission of electric energy.
The purpose of this utility model can be by realizing by the following technical solutions:
A kind of isolation switch device with temperature-compensating is used in design, comprises base, insulator, static contact head device, movable contact headstock and two blade type plug-in strip of saving.Save the blade type plug-in strip for described pair and comprise that spacing is slightly less than two parallel metal laths of fixed contact width, it is diastrophic bimetal leaf strip packing ring that this parallel metal lath outer rim one side liner has the heat of chance, the board-like resilient strip shape of its opposite side liner packing ring.
The drawing brief description of accompanying drawing is as follows:
Fig. 1 is the isolation switch device gate-dividing state structural representation of the utility model band temperature-compensating;
Fig. 2 is the isolation switch device "on" position structural representation of band temperature-compensating;
Fig. 3 is the isolation switch device "on" position schematic top plan view of band temperature-compensating;
Fig. 4 is the isolation switch device "on" position schematic side view of band temperature-compensating;
Fig. 5 is the utility model "on" position one end enlarged diagram;
Fig. 6 is the bimetal leaf strip packing ring free state schematic diagram of described chance thermal flexure;
Circle 7 is described board-like elastic force strip packing ring free state schematic diagrames.
The most preferred embodiment of the isolation switch device of the utility model band temperature-compensating is described in detail in detail below in conjunction with accompanying drawing.
A kind of isolation switch device with temperature-compensating comprises base 1, insulator 2, static contact head device 3, movable contact headstock 4 and two blade type plug-in strip 5 of saving.It is characterized in that: save blade type plug-in strip 5 for described pair and comprise that spacing is slightly less than two parallel metal laths 51,52 of fixed contact width, it is diastrophic bimetal leaf strip packing ring 53 that this parallel metal lath outer rim one side liner has the heat of chance.It is flexural deformation that described bimetal leaf strip packing ring 53 is met heat, and temperature is high more, is out of shape big more; When selected a kind of bimetal leaf temperature reached 200 ℃, the free state distortion was arched upward and can be reached 4mm.This moment, pressed at strip bimetal washer two ends, and middle arched part can produce about 30 kilograms pressure to laths of metal.During the temperature step-down, this pressure reduces, thereby can keep that constant contact pressure and contact resistance are arranged between the dynamic/static contact.
Described parallel metal lath opposite side liner has board-like elastic force strip packing ring 54.Be crooked shape under these board-like elastic force strip packing ring 54 free states, after pressed at two ends, its arched part produced elastic pressure to laths of metal; Adjusted elastic pressure can keep dynamic and static contact when normal running, and certain elasticity is arranged, and closes branch freely.
Described bimetal leaf strip packing ring 53 and board-like elastic force strip packing ring 54 are respectively established two, are divided into the two ends of described parallel metal lath 51,52.Between described bimetal leaf strip packing ring 53 and the described board-like elastic force strip packing ring 54, there are two fastening screws 55 to fix, make between the two parallel metal laths 51,52 of saving the blade type plug-in strip of moving contact to keep certain distance, and can adjust on demand.An end of forming the parallel metal lath of plug-in strip is an axle head, and the end of movable contact headstock axle interlock contact is arranged, near near the combination that a pair of moving contact and contact base are arranged this end; The other end has the combination of a pair of dynamic and static contact when closing a floodgate, described each end of parallel metal lath all has a pair of bimetal leaf strip packing ring and the outside, board-like elastic force strip packing ring office, can and vibrate the contact pressure variation that causes to variations in temperature compensates, finally to keep lower constant conducting resistance, guarantee that the long-term safety of electric energy is carried.
Described fastening screw 55 is set with range line sleeve 551.Its effect is to guarantee fixed contact can't be cut.
The external insulation of described insulator 2 partly adopts composite material or ceramic material with good hydrophobicity to make, so pillar moisture-proof, pollution flashover performance are far above common insulator.
The utility model is with respect to the remarkable advantage of prior art: adopted to vary with temperature and present not With bimetal leaf strip packing ring and the board-like elastic force strip packing ring of bending deformation quantity, thereby can make the isolation switch dress Put and in relative broad range, carry out the temperature and pressure compensation, and keep constant contact pressure between the dynamic and static contact of isolating switch Power and lower conducting resistance, thus passing through smoothly of big electric current on the isolation switch guaranteed, be conducive to the peace of electric energy Full transmission.
Claims (7)
1. the isolation switch device with temperature-compensating comprises base (1), insulator (2), static contact head device (3), movable contact headstock (4) and two blade type plug-in strip (5) of saving; It is characterized in that:
Save blade type plug-in strip (5) for described pair and comprise that spacing is slightly less than two parallel metal laths (51), (52) of fixed contact width, it is diastrophic bimetal leaf strip packing ring (53) that this parallel metal lath outer rim one side liner has the heat of chance.
2. according to the isolation switch device of the described band temperature-compensating of claim 1, it is characterized in that:
Described parallel metal lath opposite side liner has board-like elastic force strip packing ring (54).
3. according to the isolation switch device of the described band temperature-compensating of claim 2, it is characterized in that:
Between described bimetal leaf strip packing ring (53) and the described board-like elastic force strip packing ring (54), two fastening screws (55) are arranged.
4. according to the isolation switch device of the described band temperature-compensating of claim 3, it is characterized in that:
Described bimetal leaf strip packing ring (53) and board-like elastic force strip packing ring (54) are respectively established two, are divided into the two ends of described parallel metal lath (51), (52).
5. according to the isolation switch device of the described band temperature-compensating of claim 4, it is characterized in that:
Described fastening screw (55) is set with range line sleeve (551).
6. according to the isolation switch device of the described band temperature-compensating of claim 5, it is characterized in that:
The external insulation of described insulator (2) partly adopts composite material to make.
7. according to the isolation switch device of the described band temperature-compensating of claim 5, it is characterized in that:
The external insulation of described insulator (2) partly adopts ceramic material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00228685 CN2435829Y (en) | 2000-06-28 | 2000-06-28 | Isolating knife switch with temp. compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00228685 CN2435829Y (en) | 2000-06-28 | 2000-06-28 | Isolating knife switch with temp. compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2435829Y true CN2435829Y (en) | 2001-06-20 |
Family
ID=33592119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00228685 Expired - Fee Related CN2435829Y (en) | 2000-06-28 | 2000-06-28 | Isolating knife switch with temp. compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2435829Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005342A (en) * | 2009-09-01 | 2011-04-06 | Ls产电株式会社 | Slide type movable contactor assembly for circuit breaker |
| CN102095408A (en) * | 2010-11-03 | 2011-06-15 | 天津市威斯曼光学仪器有限公司 | Automatic level compensator with temperature compensation function |
| CN102646542A (en) * | 2012-05-11 | 2012-08-22 | 湛江高压电器有限公司 | Single-insulation strut high-voltage isolation switch |
| CN106057601A (en) * | 2016-06-27 | 2016-10-26 | 国网山东省电力公司蓬莱市供电公司 | Electric power circuit breaker |
| CN110729149A (en) * | 2019-09-20 | 2020-01-24 | 姚登鹏 | Distribution network automation safety switch |
-
2000
- 2000-06-28 CN CN 00228685 patent/CN2435829Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005342A (en) * | 2009-09-01 | 2011-04-06 | Ls产电株式会社 | Slide type movable contactor assembly for circuit breaker |
| CN102095408A (en) * | 2010-11-03 | 2011-06-15 | 天津市威斯曼光学仪器有限公司 | Automatic level compensator with temperature compensation function |
| CN102646542A (en) * | 2012-05-11 | 2012-08-22 | 湛江高压电器有限公司 | Single-insulation strut high-voltage isolation switch |
| CN102646542B (en) * | 2012-05-11 | 2015-03-11 | 湛江高压电器有限公司 | Single-insulation strut high-voltage isolation switch |
| CN106057601A (en) * | 2016-06-27 | 2016-10-26 | 国网山东省电力公司蓬莱市供电公司 | Electric power circuit breaker |
| CN106057601B (en) * | 2016-06-27 | 2018-02-16 | 国网山东省电力公司蓬莱市供电公司 | A kind of power circuit breaker |
| CN110729149A (en) * | 2019-09-20 | 2020-01-24 | 姚登鹏 | Distribution network automation safety switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Designer after: Hu Guangsheng Designer after: Guo Dongliang Designer before: Hu Guangsheng Designer before: Yuan Xiliang Designer before: Guo Dongliang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: DESIGNER; FROM: HU GUANGSHENG YUAN XILIANG GUO DONGLIANG TO: HU GUANGSHENG GUO DONGLIANG |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010620 |