CN1374490A - Temperature controller for electrical liquid heater - Google Patents
Temperature controller for electrical liquid heater Download PDFInfo
- Publication number
- CN1374490A CN1374490A CN 02110702 CN02110702A CN1374490A CN 1374490 A CN1374490 A CN 1374490A CN 02110702 CN02110702 CN 02110702 CN 02110702 A CN02110702 A CN 02110702A CN 1374490 A CN1374490 A CN 1374490A
- Authority
- CN
- China
- Prior art keywords
- contact
- electric heating
- heating element
- thermostat
- liquid heater
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/002—Thermally-actuated switches combined with protective means
Landscapes
- Thermally Actuated Switches (AREA)
Abstract
The temperature controller for liquid electric heater incldues casing and once protecting mechanism inside the casing. The once protecting mechanism includes one easy-to-melt push rod extending beyond the casing and is installed to contact with the electric heating element thermally. There is one contact sheet pair connected serially in the electric path of the electric element and the elastic moving sheet of the contact sheet pair tends far away the static sheet normally. The easy-to-melt push rod has its other end contacted with the moving sheet to force it contact with the static sheet. The temperature controller has one thermosensitive mechanism for conventional use, and the once protecting mechanism is one spare one. The moving sheet is pre-deformed and this makes it possible to omit regulating spring and other operating parts to simplify structure and installation.
Description
Technical field
The present invention relates to a kind of safety device of electrical liquid heater, particularly a kind of thermostat that is used for electrical liquid heater.
Background technology
Electrical liquid heater generally is used for electric heating vessels such as electric kettle, electric coffee kettle, electric cup, usually, for preventing that the phenomenon of aneroid dry combustion method from appearring in electric heater, be provided with the safety device that can when the aneroid dry combustion method, cut off the power supply automatically therein, it also is thermostat, it, and disconnects by the active and static contact that the link gear that is connected with bimetal leaf will be connected on the electric heating loop as temperature-sensing element with bimetal leaf etc., thereby makes the electric heating element outage.Because active and static contact uses the back or might break down under certain situation and can't be disconnected long-term, therefore is necessary to be provided with a backup protection mechanism, disconnects with the power circuit of other mode with electric heating element.For this reason, British patent GB2181598 discloses a kind of thermostat with backup protection mechanism, it includes a temperature-sensitive actuating mechanism, itself and electric heating element heat conduction contact mutually, and with as the contact of control switch to linking, when electric heating element is overheated, this temperature-sensitive actuating mechanism with contact to separately, thereby make the electric heating element outage; It also includes a backup protection mechanism; comprise a spring that compresses in advance; the one end by an operating parts and described switch contact to or another group switch contact to linking to each other; when thermostat normally uses; the other end that one meltable push rod withstands this spring makes it maintain impaction state; the other end of this meltable push rod then stretch out outside the thermostat and when mounted with electric heating element heat conduction contact mutually; when overheated and described temperature-sensitive actuating mechanism is malfunctioning when electric heating element; the fusing of described meltable push rod outer end; therefore described spring is released; order about described operating parts with coupled switch contact to disconnecting, thereby make the electric heating element outage.This design makes thermostat safer reliable, yet also there is defective in it, and wherein requisite preloading spring and coupled operating parts not only make structure more complicated, have also increased assembly difficulty.
Summary of the invention
Technical problem to be solved by this invention is that the thermostat that a kind of structure is more simple, assembling is more convenient is provided at above-mentioned prior art present situation.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the thermostat that is used for electrical liquid heater comprises housing and is arranged on wherein disposable protection mechanism; described disposable protection mechanism includes a meltable push rod; stretch out outside the housing its outer end; and when mounted with electric heating element heat conduction contact mutually; it is characterized in that also comprising one, to be connected on the contact of electric heating element power circuit right; movable contact spring wherein is a flexible member; and under nature, has trend away from the static contact relative with it; and the other end of described meltable push rod promptly offsets with this movable contact spring, forces it to contact with static contact.
Described thermostat also can be provided with conventional reusable temperature-sensitive actuating mechanism, the heat conduction contact mutually of it and electric heating element, and with as the contact of control switch to linking, when electric heating element is overheated, this temperature-sensitive actuating mechanism with contact to separately, thereby make the electric heating element outage.At this moment, i.e. in support the protection mechanism of described disposable protection mechanism.Contact in the described temperature-sensitive actuating mechanism also can be that another is right to contact to being exactly that contact in the described disposable protection mechanism is right.
Compared with prior art, the present invention dexterously with movable contact spring self as pre-deformation device, thereby save preloading spring needed in the art and operating parts thereof, so structure is more simple, assembles more convenient.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the A-A cutaway view of Fig. 1 under the normal condition.
Fig. 3 is the meltable push rod A-A cutaway view when meeting heat fusing.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, the thermostat that is used for electrical liquid heater comprise housing and be arranged on wherein the temperature-sensitive actuating mechanism and the disposable protection mechanism of reserve;
Housing comprises procapsid 1 and the back casing 2 by fire proofing system that interfixes with screw, is connected with heater 5 by screw during installation;
The temperature-sensitive actuating mechanism comprises N utmost point static contact 9, N utmost point movable contact spring 10, bimetal leaf 3 and push rod (not drawing among the figure) thereof, the N that N utmost point still 9 is riveted on pin 8 extremely goes up, bimetal leaf 3 is fixed on the cap, its outer face contacts with electric heating element 5, when electric heating element is overheated, bimetal leaf 3 distortion are backed down N utmost point movable contact spring 10 by push rod, and N utmost point movable contact spring 10 is separated with N utmost point static contact 9;
The disposable protection mechanism of reserve comprises L utmost point static contact 7, L utmost point movable contact spring 6 and meltable push rod 4, the L that L utmost point still 7 is riveted on pin 8 extremely goes up, L utmost point movable contact spring 6 is a flexible member, and has the trend away from the static contact relative with it under nature, referring to Fig. 3; Meltable push rod is slidingly fitted in the back casing 2 corresponding holes, and stretch out outside the housing its outer end, and offset with electric heating element 5 when mounted, and its inner promptly offsets with this L utmost point movable contact spring 6, forces it to contact with L utmost point static contact 7.
When dry combustion method takes place electric heating element 5, and the temperature-sensitive actuating mechanism is when malfunctioning, electric heating element 5 will be seriously overheated, the outer end of meltable push rod 4 is with fusion at this moment, because the elastic reaction of L utmost point movable contact spring, meltable push rod 4 is pushed outwards, thereby removes the restriction to L utmost point movable contact spring 6, L utmost point movable contact spring is separated with L utmost point static contact 7 under elastic force effect own, thereby the power circuit of electric heating element 5 is disconnected.
Claims (4)
1, a kind of thermostat that is used for electrical liquid heater; comprise housing and be arranged on wherein disposable protection mechanism; described disposable protection mechanism includes a meltable push rod; stretch out outside the housing its outer end; and when mounted with electric heating element heat conduction contact mutually; it is characterized in that also comprising one, to be connected on the contact of electric heating element power circuit right; movable contact spring wherein is a flexible member; and under nature, has trend away from the static contact relative with it; and the other end of described meltable push rod promptly offsets with this movable contact spring, forces it to contact with static contact.
2, the thermostat that is used for electrical liquid heater according to claim 1, it is characterized in that also including conventional reusable temperature-sensitive actuating mechanism, it and electric heating element heat conduction contact mutually, and with as the contact of control switch to linking, when electric heating element is overheated, this temperature-sensitive actuating mechanism with contact to separately, thereby make the electric heating element outage.
3, the thermostat that is used for electrical liquid heater according to claim 2 is characterized in that contact in the described temperature-sensitive actuating mechanism is to being exactly that contact in the described disposable protection mechanism is right.
4, the thermostat that is used for electrical liquid heater according to claim 2 is characterized in that the contact in the described temperature-sensitive actuating mechanism is right to the contact that is connected in the electric heating element power circuit for another.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02110702 CN1374490A (en) | 2002-01-29 | 2002-01-29 | Temperature controller for electrical liquid heater |
| PCT/CN2002/000294 WO2003063660A1 (en) | 2002-01-29 | 2002-04-26 | Temperature controller for immersion heater |
| CN 02286954 CN2562703Y (en) | 2002-01-29 | 2002-11-08 | Temperature controller for liquid electric heater |
| CN 02150153 CN1211618C (en) | 2002-01-29 | 2002-11-08 | Temperature controller for electric liquid heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02110702 CN1374490A (en) | 2002-01-29 | 2002-01-29 | Temperature controller for electrical liquid heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1374490A true CN1374490A (en) | 2002-10-16 |
Family
ID=4741206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02110702 Pending CN1374490A (en) | 2002-01-29 | 2002-01-29 | Temperature controller for electrical liquid heater |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1374490A (en) |
| WO (1) | WO2003063660A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008141491A1 (en) * | 2007-05-21 | 2008-11-27 | Ningbo Goodfriends Electric Appliance Co., Ltd | Thermal sensitive controller and corresponding electric immerse heater |
| CN103632901A (en) * | 2012-08-28 | 2014-03-12 | 宁波家尚电器有限公司 | Fuse type dry heating protector |
| CN104779118A (en) * | 2015-04-30 | 2015-07-15 | 佛山市川东磁电股份有限公司 | Fuse protection structure |
| WO2016173413A1 (en) * | 2015-04-30 | 2016-11-03 | 佛山市川东磁电股份有限公司 | Integrated sensor |
| CN106653478A (en) * | 2017-02-22 | 2017-05-10 | 佛山市川东磁电股份有限公司 | Compatible type temperature controller |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107206190A (en) | 2014-12-02 | 2017-09-26 | 新加坡科技研究局 | Sensor patch and the sensing device further with the sensor patch |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE818448A (en) * | 1973-08-04 | 1975-02-03 | COMBINED TEMPERATURE REGULATOR | |
| DE7817937U1 (en) * | 1978-06-15 | 1987-08-20 | Inter Control Hermann Koehler Elektrik Gmbh & Co Kg, 8500 Nuernberg, De | |
| GB8524487D0 (en) * | 1985-10-04 | 1985-11-06 | Strix Ltd | Thermally-sensitive controls |
| CN2047449U (en) * | 1989-02-02 | 1989-11-08 | 南京太平专利技术实验工厂 | Organic compound type overtemperature fuse |
-
2002
- 2002-01-29 CN CN 02110702 patent/CN1374490A/en active Pending
- 2002-04-26 WO PCT/CN2002/000294 patent/WO2003063660A1/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008141491A1 (en) * | 2007-05-21 | 2008-11-27 | Ningbo Goodfriends Electric Appliance Co., Ltd | Thermal sensitive controller and corresponding electric immerse heater |
| CN103632901A (en) * | 2012-08-28 | 2014-03-12 | 宁波家尚电器有限公司 | Fuse type dry heating protector |
| CN104779118A (en) * | 2015-04-30 | 2015-07-15 | 佛山市川东磁电股份有限公司 | Fuse protection structure |
| WO2016173413A1 (en) * | 2015-04-30 | 2016-11-03 | 佛山市川东磁电股份有限公司 | Integrated sensor |
| CN106653478A (en) * | 2017-02-22 | 2017-05-10 | 佛山市川东磁电股份有限公司 | Compatible type temperature controller |
| CN106653478B (en) * | 2017-02-22 | 2018-08-17 | 佛山市川东磁电股份有限公司 | A kind of compatible type temperature controller |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003063660A1 (en) | 2003-08-07 |
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| SE01 | Entry into force of request for substantive examination | ||
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| PB01 | Publication | ||
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