CN105390324A - Power switch, power circuit and power system - Google Patents
Power switch, power circuit and power system Download PDFInfo
- Publication number
- CN105390324A CN105390324A CN201510798132.8A CN201510798132A CN105390324A CN 105390324 A CN105390324 A CN 105390324A CN 201510798132 A CN201510798132 A CN 201510798132A CN 105390324 A CN105390324 A CN 105390324A
- Authority
- CN
- China
- Prior art keywords
- liquid metal
- gate
- spherical
- spherical contact
- container
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H29/00—Switches having at least one liquid contact
- H01H29/16—Switches having at least one liquid contact operated by dipping soil contact into stationary contact liquid
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H29/00—Switches having at least one liquid contact
- H01H29/02—Details
- H01H29/04—Contacts; Containers for liquid contacts
Landscapes
- Contacts (AREA)
Abstract
A power switch comprises a gate (1), a container (2), a support body (3), liquid metal (21), a first electrical node (IN+) and a second electrical node (IN-). The gate (1) is provided with a spherical contact; the spherical contact is provided with spherical cavities (10); the spherical centers of the spherical cavities (10) are within the surface of the spherical contact; and each spherical cavity (10) is provided with a circular opening (101) making the spherical cavity (10) and the outside communicated on the surface of the spherical contact; and the diameter of the circular openings (101) is smaller than that of the spherical cavities (10). A power circuit comprises the power switch. A power system comprises the power switch. The power switch of the invention is low in cost, flexible in application, long in service life, and stable and reliable.
Description
Technical field
The invention belongs to electricity field, a kind of power switch, power circuit, electric power system.
Background technology
Existing power switch always be unable to do without the solid-state plug-in strip of metal, and power switch disconnect and close be always difficult to the existence avoiding arcing afterwards, arcing easily causes the subregion gasification on solid metallic plug-in strip surface oxidation, surface, areal deformation, any surface finish changed condition, thus causing device for switching properties deteriorate, the loss caused for the switch arcing of often opening-breaking is quite serious.
Summary of the invention
For the problem described in technical solution background, a kind of power switch of the present invention, power circuit, electric power system.
The present invention has following technology contents.
A kind of power switch, comprises gate (1), container (2), supporting mass (3), liquid metal (21), the first electrical node (IN+), the second electrical node (IN-);
Gate (1) there is spherical contact, spherical contact has spherical vestibule (10), within the centre of sphere of spherical cavity (10) is positioned at the surface of spherical contact, spherical cavity (10) forms the circular open (101) that spherical cavity (10) is communicated with outside in spherical contact surface, the diameter of circular open (101) is less than the diameter of spherical cavity (10);
Container (2) is made for conductor;
Liquid metal (21) contains in container (2), and the volume of liquid metal (21) is less than the volume of container (2);
One end and the container of supporting mass (3) are fixedly linked, and the other end and the gate (1) of supporting mass (3) form and can be dynamically connected, and supporting mass (3) entirety embodies insulating properties;
First electrical node (IN+) is connected in electricity with gate (1);
Second electrical node (IN-) is connected in electricity with container (2);
The spherical contact of gate (1) can be immersed in liquid metal (21) to make to form electric path between the first electrical node (IN+) and the second electrical node (IN-), the spherical contact of gate (1) can depart from liquid metal (21) completely to realize forming open circuit between the first electrical node (IN+) and the second electrical node (IN-), when the spherical contact of gate (1) is immersed in liquid metal, liquid metal can enter in the spherical vestibule of spherical contact, depart from liquid metal when the spherical contact of gate (1) becomes from by the state of liquid metal submergence be, liquid metal in spherical cavity still to remain in spherical cavity and to form liquid metal globule (201) under capillary effect, the surface of the spherical contact of gate (1) can be given prominence in the surface of liquid metal globule (201), thus form electric discharge top, thus make the discharge position of gate (1) be positioned on liquid metal globule (201), and liquid metal liquid itself there is no solid shape, therefore the gasification of liquid metal recoverablely can not there is the change of any surface finish situation and damage electrical characteristic, the structure of the spherical contact of gate (1) can make liquid metal globule (201) retain a period of time, and then the electric switch can alleviating frequent opening and closing is from the damage of arcing when being disconnected to closed to switch electrical characteristic.
Described gate is that tungsten is made.
The diameter of the circular open (101) on the spherical contact on described gate is less than 1/4th of the diameter of spherical cavity.
Described container uses tungsten to make.
Described liquid metal is indium gallium alloy.
Described liquid metal is mercury.
Described supporting mass is the entirety that one matter list is formed.
Described gate, container are installed in airtight container.
A kind of power circuit, has the electric switch described in above content.
A kind of electric power system, has the electric switch described in above content.
Technology contents illustrates and beneficial effect.
Spherical contact surface of the present invention
The present invention is with low cost, applying flexible, electrical endurance are long, reliable and stable.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of embodiment 1.
Accompanying drawing 2 is the profile of the spherical contact of the gate of Fig. 1, and E-E is section label.
As Fig. 3 be embodiment 1 close time schematic diagram, the spherical contact of gate is immersed in liquid metal.
As Fig. 4 be embodiment 1 from the schematic diagram being closed into disconnection, the spherical contact of gate has departed from liquid metal.
Accompanying drawing 5 is the profile of the spherical contact of the gate of Fig. 4, and E-E is section label.
As Fig. 6 be gate spherical contact on the enlarged drawing at spherical vestibule position.
concrete embodiment
Below in conjunction with embodiment, the present invention will be described.
Embodiment 1, as shown in figures 1 to 6, a kind of power switch, comprises gate 1, container 2, supporting mass 3, liquid metal 21, first electrical node IN+, the second electrical node IN-;
Gate 1 there is spherical contact, spherical contact has spherical vestibule 10, within the centre of sphere of spherical cavity 10 is positioned at the surface of spherical contact, spherical cavity 10 forms the circular open 101 that spherical cavity 10 is communicated with outside in spherical contact surface, the diameter of circular open 101 is less than the diameter of spherical cavity 10;
Container 2 is made for conductor;
Liquid metal 21 contains in container 2, and the volume of liquid metal 21 is less than the volume of container 2;
One end and the container of supporting mass 3 are fixedly linked, and the other end and the gate 1 of supporting mass 3 form and can be dynamically connected, and supporting mass 3 entirety embodies insulating properties;
First electrical node IN+ is connected in electricity with gate 1;
Second electrical node IN-is connected in electricity with container 2;
The spherical contact of gate 1 can be immersed in liquid metal 21 to make to form electric path between the first electrical node IN+ and the second electrical node IN-, the spherical contact of gate 1 can depart from liquid metal 21 completely to realize forming open circuit between the first electrical node IN+ and the second electrical node IN-, when the spherical contact of gate 1 is immersed in liquid metal, liquid metal can enter in the spherical vestibule of spherical contact, depart from liquid metal when the spherical contact of gate 1 becomes from by the state of liquid metal submergence be, liquid metal in spherical cavity still to remain in spherical cavity and to form liquid metal globule 201 under capillary effect, the surface of the spherical contact of gate 1 can be given prominence in the surface of liquid metal globule 201, thus form electric discharge top, thus make the discharge position of gate 1 be positioned on liquid metal globule 201, and liquid metal liquid itself there is no solid shape, therefore the gasification of liquid metal recoverablely can not there is the change of any surface finish situation and damage electrical characteristic, the structure of the spherical contact of gate 1 can make liquid metal globule 201 retain a period of time, and then the electric switch can alleviating frequent opening and closing is from the damage of arcing when being disconnected to closed to switch electrical characteristic.
Described gate is that tungsten is made.
The diameter of the circular open 101 on the spherical contact on described gate is less than 1/4th of the diameter of spherical cavity.
Described container uses tungsten to make.
Described liquid metal is indium gallium alloy.
Described supporting mass is the entirety that one matter list is formed.
Embodiment 2, on the basis of embodiment 1, by gate, case in airtight container.
Embodiment 3, a kind of power circuit, have the electric switch described in embodiment 1.
Embodiment 4, a kind of electric power system, have the electric switch described in embodiment 1.
This illustrates that not quite clear place is prior art or common practise, therefore does not repeat.
Claims (10)
1. a power switch, is characterized in that: comprise gate (1), container (2), supporting mass (3), liquid metal (21), the first electrical node (IN+), the second electrical node (IN-);
Gate (1) there is spherical contact, spherical contact has spherical vestibule (10), within the centre of sphere of spherical cavity (10) is positioned at the surface of spherical contact, spherical cavity (10) forms the circular open (101) that spherical cavity (10) is communicated with outside in spherical contact surface, the diameter of circular open (101) is less than the diameter of spherical cavity (10);
Container (2) is made for conductor;
Liquid metal (21) contains in container (2), and the volume of liquid metal (21) is less than the volume of container (2);
One end and the container of supporting mass (3) are fixedly linked, and the other end and the gate (1) of supporting mass (3) form and can be dynamically connected, and supporting mass (3) entirety embodies insulating properties;
First electrical node (IN+) is connected in electricity with gate (1);
Second electrical node (IN-) is connected in electricity with container (2);
The spherical contact of gate (1) can be immersed in liquid metal (21) to make to form electric path between the first electrical node (IN+) and the second electrical node (IN-), the spherical contact of gate (1) can depart from liquid metal (21) completely to realize forming open circuit between the first electrical node (IN+) and the second electrical node (IN-), when the spherical contact of gate (1) is immersed in liquid metal, liquid metal can enter in the spherical vestibule of spherical contact, depart from liquid metal when the spherical contact of gate (1) becomes from by the state of liquid metal submergence be, liquid metal in spherical cavity still to remain in spherical cavity and to form liquid metal globule (201) under capillary effect, the surface of the spherical contact of gate (1) can be given prominence in the surface of liquid metal globule (201), thus form electric discharge top, thus make the discharge position of gate (1) be positioned on liquid metal globule (201), and liquid metal liquid itself there is no solid shape, therefore the gasification of liquid metal recoverablely can not there is the change of any surface finish situation and damage electrical characteristic, the structure of the spherical contact of gate (1) can make liquid metal globule (201) retain a period of time, and then the electric switch can alleviating frequent opening and closing is from the damage of arcing when being disconnected to closed to switch electrical characteristic.
2. a kind of electric switch as claimed in claim 1, is characterized in that: described gate is that tungsten is made.
3. a kind of electric switch as claimed in claim 1, is characterized in that: the diameter of the circular open (101) on the spherical contact on described gate is less than 1/4th of the diameter of spherical cavity.
4. a kind of electric switch as claimed in claim 1, is characterized in that: described container uses tungsten to make.
5. a kind of electric switch as claimed in claim 1, is characterized in that: described liquid metal is indium gallium alloy.
6. a kind of electric switch as claimed in claim 1, is characterized in that: described liquid metal is mercury.
7. a kind of electric switch as claimed in claim 1, is characterized in that: described supporting mass is the entirety that one matter list is formed.
8. a kind of electric switch as claimed in claim 1, is characterized in that: described gate, container are installed in airtight container.
9. a power circuit, is characterized in that: have the electric switch described in arbitrary technology contents in claim 1-8.
10. an electric power system, is characterized in that: have the electric switch described in arbitrary technology contents in claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510798132.8A CN105390324B (en) | 2015-11-19 | 2015-11-19 | Power switch, power circuit and power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510798132.8A CN105390324B (en) | 2015-11-19 | 2015-11-19 | Power switch, power circuit and power system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105390324A true CN105390324A (en) | 2016-03-09 |
| CN105390324B CN105390324B (en) | 2017-04-26 |
Family
ID=55422496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510798132.8A Active CN105390324B (en) | 2015-11-19 | 2015-11-19 | Power switch, power circuit and power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105390324B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968013A (en) * | 2017-11-28 | 2018-04-27 | 清华大学 | A kind of liquid metal switch system combined based on biologic specificity identification |
| CN112038125A (en) * | 2020-08-27 | 2020-12-04 | 丁柳朋 | Power switch of protective electrode |
| CN112053882A (en) * | 2020-08-27 | 2020-12-08 | 杭州绿中游智能科技有限公司 | Power switch capable of preventing electric arc from being pulled |
| CN112053883A (en) * | 2020-08-27 | 2020-12-08 | 陈艳 | Power switch |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2696537A (en) * | 1951-07-09 | 1954-12-07 | Remimax Aktiebolag | Arrangement for current impulse relays |
| SU609137A1 (en) * | 1976-10-19 | 1978-05-30 | Vejttsel Oleg V | Switching apparatus contact |
| SU1104597A1 (en) * | 1983-03-29 | 1984-07-23 | Куйбышевский ордена Трудового Красного Знамени политехнический институт им.В.В.Куйбышева | Liquid-metal contact unit |
| SU1120419A1 (en) * | 1983-11-14 | 1984-10-23 | Каунасский Политехнический Институт Им.Антанаса Снечкуса | Contact for switching device |
| DD239266A1 (en) * | 1985-07-10 | 1986-09-17 | Elektroprojekt Anlagenbau Veb | SWITCHING CHAMBER |
| CN1774780A (en) * | 2003-04-14 | 2006-05-17 | 安捷伦科技有限公司 | Substrate with liquid electrode |
| CN1820338A (en) * | 2003-07-10 | 2006-08-16 | Abb研究有限公司 | Method and device for power braking with a fluid-operated liquid metal current switch |
| CN105007068A (en) * | 2015-06-25 | 2015-10-28 | 国网山东省电力公司枣庄供电公司 | Switch, electronic system, electric power system, automatic system and mechanical device |
-
2015
- 2015-11-19 CN CN201510798132.8A patent/CN105390324B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2696537A (en) * | 1951-07-09 | 1954-12-07 | Remimax Aktiebolag | Arrangement for current impulse relays |
| SU609137A1 (en) * | 1976-10-19 | 1978-05-30 | Vejttsel Oleg V | Switching apparatus contact |
| SU1104597A1 (en) * | 1983-03-29 | 1984-07-23 | Куйбышевский ордена Трудового Красного Знамени политехнический институт им.В.В.Куйбышева | Liquid-metal contact unit |
| SU1120419A1 (en) * | 1983-11-14 | 1984-10-23 | Каунасский Политехнический Институт Им.Антанаса Снечкуса | Contact for switching device |
| DD239266A1 (en) * | 1985-07-10 | 1986-09-17 | Elektroprojekt Anlagenbau Veb | SWITCHING CHAMBER |
| CN1774780A (en) * | 2003-04-14 | 2006-05-17 | 安捷伦科技有限公司 | Substrate with liquid electrode |
| CN1820338A (en) * | 2003-07-10 | 2006-08-16 | Abb研究有限公司 | Method and device for power braking with a fluid-operated liquid metal current switch |
| CN105007068A (en) * | 2015-06-25 | 2015-10-28 | 国网山东省电力公司枣庄供电公司 | Switch, electronic system, electric power system, automatic system and mechanical device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968013A (en) * | 2017-11-28 | 2018-04-27 | 清华大学 | A kind of liquid metal switch system combined based on biologic specificity identification |
| CN107968013B (en) * | 2017-11-28 | 2019-03-22 | 清华大学 | A kind of liquid metal switch system combined based on biologic specificity identification |
| CN112038125A (en) * | 2020-08-27 | 2020-12-04 | 丁柳朋 | Power switch of protective electrode |
| CN112053882A (en) * | 2020-08-27 | 2020-12-08 | 杭州绿中游智能科技有限公司 | Power switch capable of preventing electric arc from being pulled |
| CN112053883A (en) * | 2020-08-27 | 2020-12-08 | 陈艳 | Power switch |
| CN112053882B (en) * | 2020-08-27 | 2023-05-12 | 河北能瑞科技有限公司 | Power switch capable of preventing electric arc strain |
| CN112038125B (en) * | 2020-08-27 | 2023-08-25 | 云南电网有限责任公司大理供电局 | Power switch for protecting electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105390324B (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105390324A (en) | Power switch, power circuit and power system | |
| JP6374104B2 (en) | High current magnetic reed switch | |
| CN101923973A (en) | Auto transfer switch including cover | |
| CN105097364A (en) | Magnetic latching relay applying flexible static spring | |
| CN203895352U (en) | Vacuum arc-extinguishing chamber with switching-on self-keeping function | |
| CN202585273U (en) | Relay | |
| CN104241006A (en) | Isolating switch | |
| CN204045481U (en) | A kind of 110kV isolating switch | |
| CN203690187U (en) | Knife-switch assembly of outdoor AC high-voltage disconnector | |
| CN105161234A (en) | Linear dynamic resistor with gradually-increased resistance values, electronic circuit and electric system | |
| CN105280379A (en) | Parallel gradient-adjustable capacitor with back space switch, water pump control system, and sewage processing equipment with water pump | |
| CN201194204Y (en) | Novel magnetic-controlled switch | |
| CN104851732A (en) | Mechanical-type direct current breaker applicable to electric or electronic system and electrical machine | |
| CN203950729U (en) | The contact system of isolating switch | |
| CN204067161U (en) | A kind of isolating switch | |
| CN104051183A (en) | Vacuum arc-extinguishing chamber with closing self-hold function | |
| CN207338223U (en) | A kind of microinching mechanism | |
| CN105280317A (en) | Linear dynamic resistor with gradually increased resistance value, motor start-up buffer and electric power system | |
| CN104851733A (en) | Mechanical-type direct current breaker applicable to electric or electronic system and electrical machine | |
| CN207199521U (en) | One kind contacts reliable direct-current isolating switch | |
| CN105206364A (en) | Gradient controllable resistor with retreating switch, electronic circuit and electric power system | |
| CN204696051U (en) | Make-before-break transfer contact | |
| CN203339051U (en) | Contact device of vacuum circuit breaker | |
| CN104851737A (en) | Mechanical-type direct current breaker applicable to electric or electronic system and electrical machine | |
| CN203553035U (en) | Vacuum arc-extinguishing switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Song Inventor after: Yang Fengwen Inventor after: Zhang Jianhua Inventor after: Hou Wen Inventor after: Zhang Rui Inventor after: Li Yanlin Inventor after: Dai Ergang Inventor after: Wang Weishuai Inventor after: Kang Wenwen Inventor after: Wang Shouli Inventor after: Wang Qiang Inventor after: Song Shizhan Inventor after: Li Yuqi Inventor after: Sun Baofeng Inventor after: Chen Ning Inventor after: Liang Zuhui Inventor after: Wang Chuanyong Inventor after: Han Peng Inventor after: Li Jianzhong Inventor after: Zhang Jian Inventor after: Wang Kun Inventor before: Chen Ning Inventor before: Wang Chuanyong Inventor before: Han Peng Inventor before: Wang Kun Inventor before: Dai Ergang Inventor before: Zhang Jian Inventor before: Kang Wenwen Inventor before: Yang Fengwen |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |