CN2238481Y - Magnetic temp. sensitive switch - Google Patents
Magnetic temp. sensitive switch Download PDFInfo
- Publication number
- CN2238481Y CN2238481Y CN 95202112 CN95202112U CN2238481Y CN 2238481 Y CN2238481 Y CN 2238481Y CN 95202112 CN95202112 CN 95202112 CN 95202112 U CN95202112 U CN 95202112U CN 2238481 Y CN2238481 Y CN 2238481Y
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- China
- Prior art keywords
- utility
- model
- contact
- magnetic
- fixed
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- 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 provides a magnetic temperature sensitive switch, which is improved by the existing magnetic temperature limiter. An up and down movable control lever is provided with a conductive piece, two terminals of the conductive piece is used as movable contacts, the surface of a cover plate is provided with static contacts which are matched with the movable contacts, wires are lead out from the static contacts. The utility model integrates the contact switch with the magnetic temperature sensitive controller together, the structure of the entire device is simplified, and the alarm function is provided. The utility model has the advantage of convenient fabrication and is suitable for occasions which needs temperature limiting and insulating and overheat alarming.
Description
The utility model relates to the temperature sensitive control of magnetic field.
Existing magnetic temperature limiter is to utilize the magnetization of ferroxcube magnet sharply to reduce to zero when Curie temperature, cause the character (Curie temperature of permanent magnet is far above the Curie temperature of soft magnetic bodies) that the magnetic attraction between soft magnetic bodies and permanent magnet disappears, the on-off switch of making.It is the control lever drive device outside connecting rod by the magnetic temperature limiter, makes the closed or disconnection of contact-making switch of the electric heater that links to each other with the connecting rod other end, thereby realizes the limit temperature of electrothermal device, the structure more complicated of entire device.
The purpose of this utility model is to provide a kind of and integrates contact-making switch and the temperature sensitive controller of magnetic, and has the magnetic temperature-sensitive switch of warning function.
The utility model is realized in the following ways.
The utility model is improved by existing magnetic temperature limiter and forms, and it is characterized in that being equipped with on the control lever that can move up and down the electric-conductor of two ends as moving contact, and the surface of cover plate is fixed with the fixed contact that can match with moving contact, has lead to draw on the fixed contact.The utility model can also be provided with the overtemperature alarm circuit.Utilize magnetic attraction between permanent magnet and soft magnetic bodies and the variation of the repulsion of spring between the two to drive control lever and move up and down, dynamic and static contact is coincide or break away to come the through and off of control circuit.
The utility model integrates contact-making switch and the temperature sensitive controller of magnetic, has simplified the entire device structure.And has a warning function.The utility model is made simple, is applicable to the occasion that needs limit temperature, insulation or overtemperature alarm.
The utility model will be further described below in conjunction with accompanying drawing.
Accompanying drawing 1. a kind of structural representations of the present utility model.Moving contact 2 is installed on the control lever 1 of band button cap.Permanent magnet stator 4 is fixed on the lower end of control lever 1 with permanent magnet 5, and soft magnetic bodies stator 6 is fixed on soft magnetic bodies 7 bottom of housing 8.Helical spring 9 places between stator 4 and the stator 6.The upper surface of insulation cover plate 10 is equipped with a pair of fixed contact 3, and the lead-in wire of fixed contact 3 is connected with power supply with electric heater respectively.For moving contact is contacted with fixed contact well, the distance between dynamic and static contact should be slightly less than the distance between permanent magnet and the soft magnetic bodies.Housing 8 also is fixed on the insulation cover plate 10, and insulate with fixed contact.Control lever 1 and last annex thereof can freely move up and down in housing 8, and insulate with housing.
Press lower control arm 1, make permanent magnet 5 and soft magnetic bodies 7 adhesives, drive moving contact 2 simultaneously and coincide with fixed contact 3, circuit turn-on, electric heater work, temperature rises.When temperature was elevated to the Curie temperature of soft magnetic bodies 7, soft magnetic bodies magnetic disappeared, and elasticity repulsion makes permanent magnet and control lever 1 rise greater than the gravity of magnetic attraction and permanent magnet, and drives moving contact 2 disengaging fixed contacts 3, and circuit disconnects.
The structural representation of accompanying drawing 2. the utility model during as the overtemperature alarm device.Moving contact 11 is fixed on the control lever 1, and a pair of fixed contact 12 is fixed on the lower surface of cover plate 10.The lead-in wire of fixed contact 12 is connected with warning circuit respectively.
When two magnets 5 and 7 adhesives, moving contact 11 does not contact with fixed contact 12, and warning circuit is not worked.Cause under the situation of ambient temperature rising in electric heater operate as normal or other reason, when temperature is elevated to the Curie temperature of soft magnetic bodies, soft magnetic bodies magnetic disappears, spring repulsion is greater than the gravity of magnetic attraction and permanent magnet, permanent magnet, control lever are risen, and it is identical with fixed contact 12 to drive moving contact 11, and the warning effect is played in the warning circuit conducting.
The another kind of structural representation of accompanying drawing 3. the utility model.
Accompanying drawing 4. the utility model and electric heater connection diagram.Wherein, 13-magnetic temperature-sensitive switch, 14-electric heater.
Accompanying drawing 5. the utility model and warning circuit connection diagram.Wherein, 15-alarm (as doorbell), 16-battery.
Claims (2)
1. magnetic temperature-sensitive switch, form by existing magnetic temperature limiter improvement, it is characterized in that being equipped with on the control lever that can move up and down the electric-conductor of two ends as moving contact, the surface of cover plate is fixed with the fixed contact that can match with moving contact, has lead to draw on the fixed contact.
2. switch as claimed in claim 1 is characterized in that warning circuit can also be set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202112 CN2238481Y (en) | 1995-01-18 | 1995-01-18 | Magnetic temp. sensitive switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202112 CN2238481Y (en) | 1995-01-18 | 1995-01-18 | Magnetic temp. sensitive switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2238481Y true CN2238481Y (en) | 1996-10-23 |
Family
ID=33855371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95202112 Expired - Fee Related CN2238481Y (en) | 1995-01-18 | 1995-01-18 | Magnetic temp. sensitive switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2238481Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394198A (en) * | 2011-07-05 | 2012-03-28 | 佛山市川东热敏磁电有限公司 | Micro temperature-sensitive magnetic control switch |
| CN103854923A (en) * | 2012-12-06 | 2014-06-11 | 美的集团股份有限公司 | Switchover device and electric heater provided with the same |
| CN104764322A (en) * | 2015-03-20 | 2015-07-08 | 姜超 | Temperature regulating knob of mesh belt furnace |
| CN106097644A (en) * | 2016-06-24 | 2016-11-09 | 北汽福田汽车股份有限公司 | Temperature alarm system and clutch assembly |
| CN108807073A (en) * | 2018-07-20 | 2018-11-13 | 深圳市源尤电源技术有限公司 | A kind of auto-power-off device for laptop line |
-
1995
- 1995-01-18 CN CN 95202112 patent/CN2238481Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394198A (en) * | 2011-07-05 | 2012-03-28 | 佛山市川东热敏磁电有限公司 | Micro temperature-sensitive magnetic control switch |
| CN103854923A (en) * | 2012-12-06 | 2014-06-11 | 美的集团股份有限公司 | Switchover device and electric heater provided with the same |
| CN103854923B (en) * | 2012-12-06 | 2016-01-06 | 美的集团股份有限公司 | Switching device shifter and there is its electric heater |
| CN104764322A (en) * | 2015-03-20 | 2015-07-08 | 姜超 | Temperature regulating knob of mesh belt furnace |
| CN106097644A (en) * | 2016-06-24 | 2016-11-09 | 北汽福田汽车股份有限公司 | Temperature alarm system and clutch assembly |
| WO2017219680A1 (en) * | 2016-06-24 | 2017-12-28 | 北汽福田汽车股份有限公司 | Temperature alarm system, clutch assembly and vehicle |
| CN108807073A (en) * | 2018-07-20 | 2018-11-13 | 深圳市源尤电源技术有限公司 | A kind of auto-power-off device for laptop line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |