CN101221867A - Explosion-proof micro-switch - Google Patents
Explosion-proof micro-switch Download PDFInfo
- Publication number
- CN101221867A CN101221867A CNA2008100467009A CN200810046700A CN101221867A CN 101221867 A CN101221867 A CN 101221867A CN A2008100467009 A CNA2008100467009 A CN A2008100467009A CN 200810046700 A CN200810046700 A CN 200810046700A CN 101221867 A CN101221867 A CN 101221867A
- Authority
- CN
- China
- Prior art keywords
- magnet
- explosion
- internal
- plastic
- external
- 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
Images
Landscapes
- Push-Button Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The present invention discloses a explosion proof microswitch, and is characterized in that the outer surface of the plastic housing of the microswitch is covered by a plastic cover; the nylon push rod in the plastic cover is connected with a movable internal magnet; an internal spring is connected between the internal magnet and the plastic housing; the outer surface of the plastic cover is connected with epoxide resin; the position outside the epoxide resin and corresponding to the internal magnet is connected with a button and an external magnet; an external spring is connected between the external magnet and the epoxide resin. The present invention has the advantages that the purpose of explosion resistance of the microswitch is achieved by encapsulating the plastic cover in epoxide resin to isolate the internal air from the external air; the product can be processed easily and utilized at the places having mixed explosive gases and the places water resistance requirements, further can be used for the explosion proof transformation of common microswitches.
Description
Technical field
The present invention relates to a kind of electric microswitch, particularly a kind of explosion-proof sensitive switch.
Background technology
Common sensitive switch has a plastic casing, and the hard contact of sensitive switch was connected and disjunction sensitive switch inside external force promoted by a nylon push rod during operation.Moment in contacting and disjunction can produce electric spark, because the plastic casing blow-by if exist damp in the surrounding environment this moment, sets off an explosion easily.General sensitive switch does not all possess explosion-proof ability, thereby common sensitive switch uses the restriction that is subjected to strictness in these special occasions.
Summary of the invention
The purpose of this invention is to provide a kind of explosion-proof sensitive switch, it can be explosion-proof effectively, all can use in the place that mixed explosion gas occurs.
The present invention is achieved like this, it comprises plastic casing, nylon push rod, button, it is characterized in that adding plastic jacket of cover in the outside of sensitive switch plastic casing, the internal magnet of the nylon push rod connection activity of plastic jacket the inside sensitive switch, be connected with inner spring between internal magnet and the plastic casing, plastic jacket outside connecting ring epoxy resins, outside epoxy resin, be connected with button and external magnet with the internal magnet correspondence position, be connected with outer spring between external magnet and the epoxy resin, the polarity that internal magnet and external magnet maintenance repel each other.
Advantage of the present invention is: water the seal ring epoxy resins by the plastic jacket outside, make inner air and outer air isolated, reach the explosion-proof purpose of sensitive switch, product is easy to processing, can be used for that the place of mixed explosion gas appearance and the occasion of waterproof requirement are arranged, also can be used for the explosion-proof transformation of common sensitive switch.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Plastic casing 2, nylon push rod 3, hard contact 4, internal magnet 5, external magnet 6, epoxy resin 7, lead-out wire 8, button 9, plastic jacket 10, inner spring 11, outer spring in the drawings, 1,
Embodiment
As shown in Figure 1, the present invention includes plastic casing 1, nylon push rod 2, button 8, it is characterized in that adding plastic jacket 9 of cover in the outside of sensitive switch plastic casing 1, the internal magnet 4 of the nylon push rod connection activity of plastic jacket the inside sensitive switch, be connected with inner spring 10 between internal magnet and the plastic casing, plastic jacket 9 outside connecting ring epoxy resins 6, outside epoxy resin, be connected with button 8 and external magnet 5 with internal magnet 4 correspondence positions, be connected with outer spring 11 between external magnet and the epoxy resin, the polarity that internal magnet and external magnet maintenance repel each other.When pressing the button 8, the magnet 4 in 5 pairs of plastic jackets of bonding with it magnet 9 produces repulsion, makes magnet 4 promote nylon push rod 2, thereby promotes the hard contact 3 of sensitive switch, and lead is connected.When not pressing the button 8, magnet 5 is returned to original position with magnet 4 under the rebound effect of spring 10 and spring 11, and push rod 2 sets back, and hard contact 3 disconnects.The signal of the connecting and disconnecting of hard contact 3 outwards transmits by lead-out wire 7.
Claims (1)
1. explosion-proof sensitive switch, it comprises plastic casing, nylon push rod, button, it is characterized in that adding plastic jacket of cover in the outside of sensitive switch plastic casing, the internal magnet of the nylon push rod connection activity of plastic jacket the inside sensitive switch, be connected with inner spring between internal magnet and the plastic casing, plastic jacket outside connecting ring epoxy resins, outside epoxy resin, be connected with button and external magnet with the internal magnet correspondence position, be connected with outer spring between external magnet and the epoxy resin, the polarity that internal magnet and external magnet maintenance repel each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100467009A CN101221867B (en) | 2008-01-14 | 2008-01-14 | Explosion-proof micro-switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100467009A CN101221867B (en) | 2008-01-14 | 2008-01-14 | Explosion-proof micro-switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101221867A true CN101221867A (en) | 2008-07-16 |
| CN101221867B CN101221867B (en) | 2010-09-22 |
Family
ID=39631617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100467009A Active CN101221867B (en) | 2008-01-14 | 2008-01-14 | Explosion-proof micro-switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101221867B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337409A (en) * | 2013-05-28 | 2013-10-02 | 朱志强 | Intrinsic safe explosion-proof magnetic switch |
| CN103413700A (en) * | 2013-08-07 | 2013-11-27 | 新黎明科技股份有限公司 | Explosion-proof press button |
| CN103745879A (en) * | 2014-01-13 | 2014-04-23 | 朱志强 | Magnetic-control explosion-proof press button |
| CN105719855A (en) * | 2016-04-19 | 2016-06-29 | 煤炭科学技术研究院有限公司 | Emergency stop switch |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3967224A (en) * | 1975-04-25 | 1976-06-29 | The United States Of America As Represented By The Secretary Of The Navy | Coated magnetically biased reed switch |
| CN88201949U (en) * | 1988-03-18 | 1988-11-30 | 长春市光电设备厂 | Permanent-magnet explosion-proof button switch |
| US5025170A (en) * | 1990-04-30 | 1991-06-18 | At&T Bell Laboratories | Underwater magnetic switch for electrical cable transmitting A.C. electrical current |
| CN2183029Y (en) * | 1993-10-08 | 1994-11-16 | 毕振华 | Explosion-proof micro switch |
| CN201142299Y (en) * | 2008-01-14 | 2008-10-29 | 泰豪科技股份有限公司 | Explosion-proof micro-switch |
-
2008
- 2008-01-14 CN CN2008100467009A patent/CN101221867B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337409A (en) * | 2013-05-28 | 2013-10-02 | 朱志强 | Intrinsic safe explosion-proof magnetic switch |
| CN103413700A (en) * | 2013-08-07 | 2013-11-27 | 新黎明科技股份有限公司 | Explosion-proof press button |
| CN103745879A (en) * | 2014-01-13 | 2014-04-23 | 朱志强 | Magnetic-control explosion-proof press button |
| CN105719855A (en) * | 2016-04-19 | 2016-06-29 | 煤炭科学技术研究院有限公司 | Emergency stop switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101221867B (en) | 2010-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101221867B (en) | Explosion-proof micro-switch | |
| CN201142299Y (en) | Explosion-proof micro-switch | |
| MY157562A (en) | Circuit breaker arrangement for medium voltage to high voltage applications | |
| CN203746707U (en) | Waterproof micro switch | |
| CN202473662U (en) | Underwater travel switch | |
| CN201549401U (en) | Dustproof and waterproof button | |
| TW201242265A (en) | Protective jacket and wireless communication device using the same | |
| CN210808102U (en) | Circuit board insulation structure and endoscope camera | |
| CN114279598A (en) | Touch sensor based on Fe-Ga silk | |
| CN203205791U (en) | Explosion-proof junction box | |
| CN102570159A (en) | Connector end cover with water-proof structure | |
| CN203588888U (en) | Fully sealed button switch | |
| CN110350705A (en) | The fire-proof motor and its method of a kind of waterproof and dustproof, Anti-burnout | |
| CN201937110U (en) | Bended type tail cover protection structure of electric connector | |
| CN202329928U (en) | Non-resonance type knock sensor | |
| CN106405149B (en) | A kind of impact type piezoelectric acceleration sensor | |
| CN102840873A (en) | Angular sensor | |
| CN212907546U (en) | Mechanical vibration switch | |
| CN208272872U (en) | Screwed cap type ultrasound electric machine fixed structure | |
| CN201570700U (en) | Electromagnetic pulse resistance electric connector | |
| CN201780868U (en) | Explosion-proof capacitor with positioning ring | |
| CN212627430U (en) | Cast explosion-proof motor for air conditioner | |
| CN201684035U (en) | Duel protection structure of safeguard device of alloy handle | |
| CN204405237U (en) | A kind of insulated metal sensistor pressure transducer | |
| CN217740384U (en) | Micro-gap switch with simple and easy seal structure |
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 | ||
| GR01 | Patent grant |