CN201689817U - Mercoid switch - Google Patents
Mercoid switch Download PDFInfo
- Publication number
- CN201689817U CN201689817U CN2010201822405U CN201020182240U CN201689817U CN 201689817 U CN201689817 U CN 201689817U CN 2010201822405 U CN2010201822405 U CN 2010201822405U CN 201020182240 U CN201020182240 U CN 201020182240U CN 201689817 U CN201689817 U CN 201689817U
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- CN
- China
- Prior art keywords
- contact
- switch
- casing
- shell
- cavity
- 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 a mercoid switch used in power systems. The bottom of a casing has a cavity; insulating oil is arranged on the top of the conductive liquid; axial ends of the casing are inserted in inlet and outlet contacts, and enclosed in the cavity; the inlet contact is linked with the outlet contact via conductive liquid through a protection switch winding; the casing is supported on a bracket via shaft sleeves, which are fixed with a rotary handle and a reducing valve. Under the natural state, the inlet and outlet contacts are in contact through mercury and conducted in power; when the casing is rotated, the power is disconnected. Two poles of the switch are sealed in a plastic cavity so as to effectively avoid poor contact and bad conduction which are caused by oxidation and corrosion of surfaces of contacts under the environment of humidity and harmful gas. When the poles are conducted, the contact is stable and reliable, and the useful time is prolonged, instead of mechanical wear; heat conduction of mercury is fast, so inside of the switch can not be overheated; when a large current passes or a short circuit occurs, the over-temperature protection switch can be cut off to control other power units to rotate the casing, and then the power is off, so as to protect the electric device .
Description
Technical field
The utility model relates to a kind of switch in the electric power system electric equipment control technology field, particularly uses the switch of mercury as conducting medium.
Background technology
Traditional mechanical switch is to be epitrochanterian conducting strip with moving contact, and by rotating, the unsettled conduction bimetal leaf of connecting fixed contact and being on the stator is connected circuit.Along with improving constantly of Automation of Electric Systems level, the reliability of switch is had higher requirement.Mainly there is following several respects deficiency in existing switch: 1, switch can make contact surface oxidation, corrosion under moist and various pernicious gas environment, causes loose contact, and conductive effect is poor; 2, frequent operation can produce mechanical wear, and arc oxidation increases the gap between contact, and the contact resistance rate increases influence electric conductivity, and by electric current greatly the time, the contact can produce high temperature, burns switch; 3, the mechanical part assembling does not reach standard-required, makes the contact between dynamic and static point have leading or the hysteresis generation, influences the electric equipment reliability of operation.
Summary of the invention
For overcoming the deficiency of existing switch contact reliability; goal of the invention of the present utility model is to provide a kind of mercoid switch; so that it is under the influence of factors such as adverse circumstances, frequent use, artificial assembling; contact is good; move reliable and stable; long service life, and can realize big electric current overtemperature protection.
For achieving the above object; the technical solution of the utility model is: the bottom of rotatable shell has the cavity that conductive liquid is housed; conductive liquid in the cavity is a mercury; in the shell; insulating oil is arranged at conductive liquid top; enclosure axis is inserted outlet contact and inlet wire contact respectively to two ends; the inlet wire contact through the winding of protection switch by conductive liquid and outlet contacting; one end of outlet contact and inlet wire contact is respectively charged in the cavity; protection switch is the overtemperature prote switch; shell is supported on the support by axle sleeve; be fixed with turning handle on the shell, pressure-reducing valve is equipped with on the top of shell.
The utility model is under the nature that does not stress, and the outlet contact contacts power turn-on with the inlet wire contact by the mercury in the cavity; When shell rotated, mercury flowed in the shell upper cavity, inlet wire contact and outlet contact separation, and power supply disconnects; When being connected with big electric current or short circuit occurring, winding can produce high temperature, heating overtemperature prote switch, and after exceeding the overtemperature prote switch design temperature upper limit, the overtemperature prote switch disconnects, and power supply disconnects.
The utility model is compared with existing switch, and the two poles of the earth of switch are enclosed in the plastic chamber, can effectively avoid making contact surface oxidation, corrosion under moist and various pernicious gas environment, causes problems such as loose contact, conduction be bad; Simultaneously, can not produce mechanical wear during the two-stage conducting, contact stabilization, reliable, long service life; Mercury heat conduction is fast, can not produce high temperature in the switch, and in addition, when being connected with big electric current or short circuit occurring, the overtemperature prote switch disconnects, and controls other actuating unit rotation case, and deenergization is to reach the purpose that electric equipment is protected.
Description of drawings
Accompanying drawing is a structure diagram of the present utility model.
Embodiment
As shown in drawings, the bottom of rotatable shell 5 has the cavity 9 that conductive liquid is housed, shell 5 axial two ends are inserted outlet contact 3 and inlet wire contact 7 respectively, one end of outlet contact 3 and inlet wire contact 7 is respectively charged in the cavity 9, under the nature that does not stress, mercury is sunken in the cavity 9, and inlet wire contact 7 and outlet contact 3 are connected by mercury, power turn-on; Turning handle 4 is fixed on the shell 5, shell 5 is supported on the support 8 by axle sleeve 10, when turning handle 4 rotates under the effect in external force in the axis hole of support 8, can drive shell 5 rotates together, mercury flows in the upper chamber of shell 5, outlet contact 3 and inlet wire contact 7 disconnect, and mercoid switch disconnects electric current; Protection switch 1 one of them binding post that is contained on the shell 5 is connected to inlet wire contact 7, the other end extends to outside the switch, winding 6 is connected with inlet wire contact 7, when being connected with big electric current or short circuit occurring, winding 6 can produce high temperature, with 1 heating of overtemperature prote switch, after exceeding overtemperature prote switch 1 and reaching the design temperature upper limit, overtemperature prote switch 1 disconnects, and the power supply that is connected to overtemperature prote switch 1 disconnects; For preventing to produce high temperature in the shell 5, shell 5 in, on the conductive liquid 12, fill insulating oil 11, and on shell 5 design one pressure-reducing valve 2, when high temperature appearred in inside, gas was by pressure-reducing valve 2 discharges.
Claims (6)
1. mercoid switch; comprise shell (5); it is characterized in that: the bottom of rotatable shell (5) has the cavity (9) that conductive liquid (12) are housed; shell (5) axially inserts outlet contact (3) and inlet wire contact (7) respectively in two ends; inlet wire contact (7) is connected by conductive liquid (12) and outlet contact (3) through the winding (6) of protection switch (1), and an end of outlet contact (3) and inlet wire contact (7) is respectively charged in the cavity (9).
2. mercoid switch according to claim 1 is characterized in that: shell (5) is supported on the support (8) by axle sleeve (10), is fixed with turning handle (4) on the shell (5).
3. mercoid switch according to claim 1 is characterized in that: pressure-reducing valve (2) is equipped with on the top of shell (5).
4. mercoid switch according to claim 1 is characterized in that: protection switch (1) is the overtemperature prote switch.
5. mercoid switch according to claim 1 is characterized in that: the conductive liquid (12) in the cavity (9) is a mercury.
6. mercoid switch according to claim 1 is characterized in that: shell (5) is interior, insulating oil (11) is arranged at conductive liquid (12) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201822405U CN201689817U (en) | 2010-04-27 | 2010-04-27 | Mercoid switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201822405U CN201689817U (en) | 2010-04-27 | 2010-04-27 | Mercoid switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689817U true CN201689817U (en) | 2010-12-29 |
Family
ID=43378095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201822405U Expired - Fee Related CN201689817U (en) | 2010-04-27 | 2010-04-27 | Mercoid switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689817U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745535A (en) * | 2016-12-30 | 2017-05-31 | 福州品行科技发展有限公司 | A kind of action induction formula hydrogen-rich cup |
| CN107294246A (en) * | 2017-06-16 | 2017-10-24 | 河北国潜线缆有限责任公司 | High pressure resistant submersible motor winding wire assembly |
| CN114220695A (en) * | 2021-12-08 | 2022-03-22 | 姚顺朗 | Switch based on conductive liquid |
-
2010
- 2010-04-27 CN CN2010201822405U patent/CN201689817U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745535A (en) * | 2016-12-30 | 2017-05-31 | 福州品行科技发展有限公司 | A kind of action induction formula hydrogen-rich cup |
| CN107294246A (en) * | 2017-06-16 | 2017-10-24 | 河北国潜线缆有限责任公司 | High pressure resistant submersible motor winding wire assembly |
| CN114220695A (en) * | 2021-12-08 | 2022-03-22 | 姚顺朗 | Switch based on conductive liquid |
| CN114220695B (en) * | 2021-12-08 | 2023-01-13 | 姚顺朗 | Switch based on conductive liquid |
| WO2023103305A1 (en) * | 2021-12-08 | 2023-06-15 | 姚顺朗 | Switch based on conductive liquid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XIANGYANG CHONGYA ELECTRIC EQUIPMENT CO., LTD. Free format text: FORMER OWNER: BU CHUNGUO Effective date: 20120903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 441100 XIANGFAN, HUBEI PROVINCE TO: 441104 XIANGFAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120903 Address after: Xiangfan City, Hubei province 441104 Xiang Wan Zhen Zhang Wan Cun, Qu Zhang three groups Patentee after: Xiangyang Chongya Electrical Appliance Co., Ltd. Address before: 441100 Meteorological Bureau of Hongxing Road, Xiangyang District, Hubei, Xiangfan Patentee before: Bo Chunguo |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20150427 |
|
| EXPY | Termination of patent right or utility model |