CN101859663A - Heat sensitive controller of liquid electric heater - Google Patents
Heat sensitive controller of liquid electric heater Download PDFInfo
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- CN101859663A CN101859663A CN 201010213457 CN201010213457A CN101859663A CN 101859663 A CN101859663 A CN 101859663A CN 201010213457 CN201010213457 CN 201010213457 CN 201010213457 A CN201010213457 A CN 201010213457A CN 101859663 A CN101859663 A CN 101859663A
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- overtemperature protection
- sheet
- connecting plate
- electric heater
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Abstract
The invention relates to a heat sensitive controller of a liquid electric heater, which comprises a plastic case, a connecting plate, overtemperature protection bimetal actuators, a transmission ceramic rod, a movable leaf spring, a static contact sheet, a switch arm, a water boiling bimetal actuator, a movable connecting sheet and a static connecting sheet, wherein the connecting plate, the overtemperature protection bimetal actuators and the transmission ceramic rod are arranged on the plastic case, and the switch arm is arranged on the plastic case, wherein the two overtemperature protection bimetal actuators arranged on the connecting plate are respectively provided with switches, the switches control the breaking and the closing of circuits and are in mutual linkage, and a heat sensitive mechanism for independently controlling the circuits of the heat sensitive controller and has the highest actuation temperature is arranged on the connecting plate. The invention has the advantages that the secondary protective breaking is realized, and the independent heat sensitive control mechanism can sense the temperature for cutting off the circuits under the condition that other bimetal actuators with linkage switches can not cut off the circuits after the action.
Description
Technical field
The present invention relates to the thermally-responsive controls that uses in a kind of liquid electric heater.
Background technology
Disclose a kind of overfire protection controller component in the prior art, it comprises the control body of a molding; The a pair of temperature-sensitive spaced apart from each other overtemperature protection bimetallic actuator that can reset, be installed in position spaced apart from each other on face of control body, so that in use the good thermo-contact that equates is arranged with described bottom, and at the heater of vessel anhydrous but switch connection or boil dry produces and can activate when overheated owing to vessel, but then can not activate when to boil water in that container is normal; Two are mounted on the make and break contact of control body, and every group interrelates with a corresponding actuator, and can open it when this actuator activates, thus the power supply of cut-out vessel heater; Described two actuators activate under essentially identical temperature.There is defective in this heat sensitive overheat protective controller assemblies; promptly, the user blocked by foreign matter because of it rotates to a certain position when in use pressing switch; or switch part and housing are when having bigger friction; the boil water bimetallic actuator can not be with switch opens after being heated and moving; and when being in always "on" position, it is overheated that water will be boiled dry and produce, and overtemperature protection this moment bimetallic actuator can be beated; but still can not open circuit, this kind situation will produce security incident.
Summary of the invention
Technical problem to be solved by this invention is at the defective in the above-mentioned state of the art, and a kind of safer thermally-responsive controls is provided.
For solving the problems of the technologies described above, the present invention relates to a kind of thermally-responsive controls of liquid electric heater, comprising: mould shell and be installed in connecting plate, overtemperature protection bimetallic actuator, transmission porcelain rod, the reed of moving, static contact, switch arm, the bimetallic actuator of boil water and be dynamically connected sheet and the static connection sheet of moulding on the shell; Described switch arm is installed in and moulds on the shell by being arranged on the rotating shaft that approaches to mould the shell centre position, and this switch arm one end has two shift forks, and the other end is tail end and the bimetallic actuator that boil water is installed; Be separately installed with three overtemperature protection bimetallic actuators on the described connecting plate, wherein two overtemperature protection bimetallic actuators have the switch of the mutual interlock that control circuit opens and closes respectively, its annexation is as follows: the described reed of moving is arranged on the below of static contact, contact on the reed and the contact combinations on the static contact of moving constitutes a switch contacts, mobilizable being installed in the through hole of moulding on the shell of transmission porcelain rod, this through hole can certainly be arranged on the shift fork of switch arm or other positions, this lower surface of moving reed and transmission porcelain rod connects, the upper surface of this overtemperature protection bimetallic actuator and transmission porcelain rod connects, but the described reed of moving is arranged on the shift fork of switch arm and the pull switch arm rotates; Inventive point as this programme; the technical program is provided with an independently irritated controlling organization on connecting plate; this mechanism comprises overtemperature protection bimetallic braking plate; transmission porcelain rod; be dynamically connected sheet and static connection sheet with and the contact that go up to be provided with; this braking plate is echelon with the activation temperature that is arranged on all the other two bimetallic actuators on the connecting plate and distributes; differ 2-5 ℃ between each; wherein the activation temperature of this overtemperature protection bimetallic braking plate is the highest; the described sheet that is dynamically connected is installed in the below of static connection sheet and is arranged on contact switch contacts of corresponding formation mutually on contact and the static connection sheet on the sheet that is dynamically connected; this switch contacts is independently controlled same circuit and can be subjected to being coupled of switch arm; the upper surface of this transmission porcelain rod and this overtemperature protection metal braking plate connect, and the lower surface of this transmission porcelain rod connects with the sheet that is dynamically connected.
After adopting this kind technical scheme; owing to be provided with an irritated controlling organization that has independent switch; after linked switch loses effectiveness; open high to the activation temperature of the overtemperature protection bimetallic braking plate of this allergy controlling organization when corresponding in the temperature of liquid electric heater; but this braking plate is moment sense temperature distortion just; thereby promote the action of transmission porcelain rod; make independent switch disconnect; cut off circuit; played once more protectiveness and disconnected, solved well because of other several bimetallic actuators and after action, can not cut off the potential safety hazard that circuit produces.
As a further improvement on the present invention, the described sheet that is dynamically connected has faying surface and contact contact-making surface, and wherein faying surface is overlapped on an end of the reed of moving, and this faying surface constitutes vertical the connection with the contact contact-making surface.Because in actual the use, a lot of braces adopt the structure of elastic reset to connect contact, and elasticity can reduce or disappear gradually, cause finally can not resetting, thereby reduced useful life, the sheet that will be dynamically connected in the further improvement of the present invention has been arranged to a fixedly all-in-one-piece and do not rely on the structure of its elastic reset, thus the useful life of having improved this thermally-responsive controls.
As a further improvement on the present invention, three overtemperature protection bimetallic actuators on the connecting plate are circular-arc distribution, its effect be make the bimetallic brake(-holder) block be subjected to thermal effect more even.
Description of drawings
Fig. 1 is the stereochemical structure partial sectional view of the thermally-responsive controls embodiment of liquid electric heater of the present invention.
Fig. 2 is the diagrammatic sketch that the thermally-responsive controls of liquid electric heater conceals connecting plate among Fig. 1.
Fig. 3 is the general structure decomposing schematic representation of the thermally-responsive controls of liquid electric heater among Fig. 1.
Fig. 4 is that the thermally-responsive controls of liquid electric heater conceals the diagrammatic sketch of moulding shell and connecting plate among Fig. 1.
Fig. 5 is the circuit connecting wire road schematic diagram of the thermally-responsive controls of liquid electric heater among Fig. 1.
Fig. 6 is the schematic perspective view of sheet of being dynamically connected among Fig. 3.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the present invention relates to a kind of thermally-responsive controls of liquid electric heater, comprising: mould shell 11; Be fixedly mounted on the connecting plate of moulding on the shell 18 and be installed in three overtemperature protection bimetallic braking plates on the connecting plate (18a, 18b, 18c); Be installed in the transmission porcelain rod (7,8) of moulding through hole 111 that shell 11 both sides are provided with and through hole 112 respectively and be installed in the insulation board 9 moulded on the shell and the transmission porcelain rod 10 by the through hole 91 on this insulation board 9; Be installed in switch arm 13 and watt shape spring leaf 14 moulded on the shell; Be installed in the bimetallic actuator 12 of the boil water of moulding the shell afterbody, the bimetallic brake 12 of this boil water is corresponding with the steam channel of liquid electric heater; Being fixed on the L utmost point static connection sheet of moulding on the shell 1 riveted joint has contact (1a 1b), is fixed on the L utmost point of moulding on the shell and is dynamically connected that riveted joint has contact 1a ' on the sheet 2, and contact (1a, 1a ') is formed a K switch 3; Be fixed on the L utmost point of moulding on the shell and move that riveted joint has contact 3a on the reed 3, be fixed on that riveted joint has contact 3a ' on the L utmost point static contact of moulding on the shell 4, contact (3a, 3a ') is formed a K switch 1; Being fixed on the N utmost point of moulding on the shell riveted joint of moving on the reed has contact (5a 5b), is fixed on that riveted joint has contact 5a ' on the N utmost point static contact of moulding on the shell, and contact (5a, 5a ') is formed a K switch 2; (18a, 18b 18c) are circular-arc distribution to wherein said three overtemperature protection bimetallic braking plates on connecting plate, and correspondence is provided with three contactor K1, K2 and K3, and its K1, K2 are linked switches, and K3 is an independent switch; The upper surface of wherein said transmission porcelain rod 7 and overtemperature protection bimetallic braking plate 18a connect, and the lower surface of this transmission porcelain rod connects with the reed 3 of moving; The upper surface of described transmission porcelain rod 8 and overtemperature protection bimetallic braking plate 18b connect, and the lower surface of this transmission porcelain rod connects with the reed 5 of moving; The upper surface of described transmission porcelain rod 10 and overtemperature protection bimetallic braking plate 18c connect, and the lower surface and the brace 2 of this transmission porcelain rod connect; Contact (1b, 5b) by with connector on electric loop coupling be connected with external power source; Described cross thermo bimetal's braking plate 18c, static connection sheet 1 and the contact on static connection sheet 1 of sheet 2 and riveting that is dynamically connected (1a, 1b) and the contact 1a ' of riveting on the sheet 2 that is dynamically connected, transmission porcelain rod 10 is common to constitute the temperature-sensitive controlling organizations.
As shown in Figure 6, this sheet 2 that is dynamically connected has faying surface 21 and contact contact-making surface 22, and wherein faying surface 21 is overlapped on an end of the reed 3 of moving, and this faying surface 21 constitutes vertical the connection with contact contact-making surface 22.
The thermally-responsive controls of described liquid electric heater is installed in the heating board bottom of liquid electric heater; three overtemperature protection bimetallic braking plates are fully contacted with the surface of heating board; make that the temperature of heating board can be by this three overtemperature protection bimetallic braking plates perception exactly, liquid electric heater also should have a steam channel to make the water vapour in the container can successfully be sent to the bimetallic actuator place that is installed in the boil water of moulding the shell afterbody.
When normal the use, to the liquid electric heater of thermally-responsive controls of the present invention be housed, be placed in the supporting power connector base of the present invention on, add entry or other solidliquid mixture in the liquid electric heater, the closed switch key that is connected with switch arm, the closing of circuit liquid electric heater enters into operating state, after water in the container of liquid electric heater or other food boil, water vapour sprays to the position of the bimetallic actuator that boil water is installed along the passage that is provided with, the heat of water vapour can make the bimetallic actuator of boil water beat, the thrust that produces passes to switch arm, the switch arm rotating certain angle, the reed of moving that is positioned at the switch arm shift fork can drive two pairs of contacts with the switch arm rotation to be separated, and promptly opens K switch 1 and K2 synchronously, and liquid electric heater quits work.
If careless entry or other solidliquid mixture of in the container of liquid electric heater, not adding, the closed switch key that is connected with switch arm, the closing of circuit liquid electric heater enters into operating state, owing to there is not water just can not produce water vapour, the heat that can not experience water vapour of the bimetallic actuator of boil water, the bimetallic actuator of boil water can not beated, and can't produce thrust and pass to switch arm.The i.e. disconnection that the bimetallic actuator of boil water can not control circuit in this case.Owing to be provided with the overtemperature protection bimetallic actuator; meeting this moment sense temperature; can beat being heated to certain hour; the thrust that produces is sent to the L utmost point reed of moving along transmission porcelain rod; the N utmost point is moved on reed and the L utmost point brace B; owing to lift the face and the L utmost point reed of moving under the shift fork of switch arm; the N utmost point reed lower surface of moving closely contacts; the thrust that produces makes the switch arm rotating certain angle; the reed of moving that is positioned at the switch arm shift fork can drive two pairs of contacts with the switch arm rotation to be separated, and promptly opens K switch 1 and K2 synchronously, and liquid electric heater quits work; meanwhile, K switch 3 also will be opened.
When non-normal working, as because of liquid electric heater in use for some time, be connected switch key on the liquid electric heater or housing and produce distortion, make and deposit between switch key and housing
In bigger frictional force, or it is careless when using, liquid electric heater is put the rotation that certain angle has taken place on the base, the switch key that connects switch arm is during by situations such as foreign matter block, no matter in the container of liquid electric heater whether water is arranged, the action of switch key is suppressed, and unless cisco unity malfunction is human intervention.Under unmanned situation, if in the container water is arranged, then water will dryout
And enter dry-fire condition; If anhydrous in the container, then directly enter dry-fire condition.In such cases; rising along with temperature; three overtemperature protection bimetallic actuators are understood sense temperature at this moment; can beat being heated to certain hour; the thrust that produces is sent to the L utmost point reed of moving along transmission porcelain rod; the N utmost point is moved on reed and the L utmost point brace B; owing to lift the face and the L utmost point reed of moving under the shift fork of switch arm; the N utmost point reed lower surface of moving closely contacts; the thrust that produces can not make repressed switch arm rotating certain angle; the reed of moving that is positioned at the switch arm shift fork so can not rotate with switch arm and drive two pairs of contacts separation, promptly can not open K switch 1 and K2 synchronously.Meanwhile, the independent switch K3 of setting of the present invention will open, and cuts off circuit, and liquid electric heater quits work, and has ensured the generation of potential safety hazard.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other multi-form variation or change on the basis of the above description
Moving, for example more increase a bimetallic actuator or with switch contacts with mode equivalent substitutions such as sensitive switches etc., and these belong to the conspicuous variation that spirit of the present invention amplified out or change and still are among protection scope of the present invention.
Claims (3)
1. the thermally-responsive controls of a liquid electric heater comprises: the bimetallic actuator of moulding shell and being installed in the connecting plate moulded on the shell, overtemperature protection bimetallic actuator, transmission porcelain rod, the reed of moving, static contact, switch arm, boil water; Described switch arm is installed in and moulds on the shell by being arranged on the rotating shaft that approaches to mould the shell centre position; this switch arm one end has two shift forks; the other end is tail end and the bimetallic actuator that boil water is installed; wherein be separately installed with two overtemperature protection bimetallic actuators on the connecting plate; and by the excellent reed of moving of transmission porcelain thereunder is set; and then rotating switch arm open circuit quits work; two contacts on the move reed and the static contact of described two overtemperature protection bimetallic actuators below are corresponding respectively and constitute the switch contacts of the mutual interlock that control circuit opens and closes; it is characterized in that: independently temperature-sensitive controlling organization of row is set on the described connecting plate; this mechanism comprises overtemperature protection bimetallic braking plate; the heat transfer bar magnet; sheet and static connection sheet are dynamically connected; the end of sheet of wherein being dynamically connected is provided with contact; the two ends of static connection sheet are respectively arranged with contact; described braking plate is with the activation temperature that is arranged on all the other two bimetallic actuators on the connecting plate that echelon distributes and brake temperature is the highest; the described sheet that is dynamically connected is installed in the below of static connection sheet and is arranged on the contact and the mutual switch contacts of corresponding formation of one of them contact on the static connection sheet of sheet one end that is dynamically connected; the keying of described switch contacts and control thermally-responsive controls same circuit corresponding with described overtemperature protection bimetallic braking plate; the upper surface of described transmission porcelain rod and this overtemperature protection bimetallic actuator connect; the lower surface of this transmission porcelain rod connects with the sheet that is dynamically connected, and the described overtemperature protection bimetallic braking plate that is arranged on the connecting plate passes through this transmission porcelain rod control circuit separately.
2. the thermally-responsive controls of liquid electric heater according to claim 1, it is characterized in that: the described sheet that is dynamically connected has faying surface and contact contact-making surface, and wherein faying surface is overlapped on an end of the reed of moving, and this faying surface and contact contact-making surface constitute vertical the connection.
3. the thermally-responsive controls of a kind of liquid electric heater according to claim 1 and 2, it is characterized in that: three overtemperature protection bimetallic actuators on the described connecting plate are circular-arc distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010213457 CN101859663A (en) | 2010-06-25 | 2010-06-25 | Heat sensitive controller of liquid electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010213457 CN101859663A (en) | 2010-06-25 | 2010-06-25 | Heat sensitive controller of liquid electric heater |
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| Publication Number | Publication Date |
|---|---|
| CN101859663A true CN101859663A (en) | 2010-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010213457 Pending CN101859663A (en) | 2010-06-25 | 2010-06-25 | Heat sensitive controller of liquid electric heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299847A (en) * | 2014-10-23 | 2015-01-21 | 浙江达威电子有限公司 | Temperature controller |
Citations (6)
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|---|---|---|---|---|
| JP2001308572A (en) * | 2000-04-20 | 2001-11-02 | Denso Corp | Cooling system |
| CN1368666A (en) * | 2002-01-14 | 2002-09-11 | 邵志成 | Temp controller, electric connector and electric water heater |
| CN1805623A (en) * | 2005-12-30 | 2006-07-19 | 杨宁恩 | Safety protector for electric heating container |
| CN101246790A (en) * | 2003-01-16 | 2008-08-20 | 奥特控制有限公司 | Improvements relating to the control of electric heating elements |
| CN101629758A (en) * | 2008-07-19 | 2010-01-20 | 浙江家泰电器制造有限公司 | Liquid heating ware overheating protection controller assembly |
| CN201812745U (en) * | 2010-06-25 | 2011-04-27 | 乐清市新锐温控有限公司 | Thermosensitive controller of liquid electric heater |
-
2010
- 2010-06-25 CN CN 201010213457 patent/CN101859663A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001308572A (en) * | 2000-04-20 | 2001-11-02 | Denso Corp | Cooling system |
| CN1368666A (en) * | 2002-01-14 | 2002-09-11 | 邵志成 | Temp controller, electric connector and electric water heater |
| CN101246790A (en) * | 2003-01-16 | 2008-08-20 | 奥特控制有限公司 | Improvements relating to the control of electric heating elements |
| CN1805623A (en) * | 2005-12-30 | 2006-07-19 | 杨宁恩 | Safety protector for electric heating container |
| CN101629758A (en) * | 2008-07-19 | 2010-01-20 | 浙江家泰电器制造有限公司 | Liquid heating ware overheating protection controller assembly |
| CN201812745U (en) * | 2010-06-25 | 2011-04-27 | 乐清市新锐温控有限公司 | Thermosensitive controller of liquid electric heater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299847A (en) * | 2014-10-23 | 2015-01-21 | 浙江达威电子有限公司 | Temperature controller |
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Owner name: YUEQING XINRUI TEMPERATURE CONTROL CO., LTD. Free format text: FORMER OWNER: WENZHOU KANGZHIJIAN ELECTRONICS TECHNOLOGY CO., LTD. Effective date: 20101124 |
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Free format text: CORRECT: ADDRESS; FROM: 325600 XIAXIANYANG VILLAGE, HONGQIAO TOWN, LEQING CITY, ZHEJIANG PROVINCE TO: 325608 XIAXIANYANG VILLAGE, HONGQIAO TOWN, LEQING CITY, ZHEJIANG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20101124 Address after: Xian Yang village of Hongqiao town of Yueqing city in Zhejiang province 325608 Applicant after: Yueqing Xinrui Temperature Control Co., Ltd. Address before: Xian Yang village of Hongqiao town of Yueqing city in Zhejiang province 325600 Applicant before: Wenzhou Kangzhijian Electronics Technology Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101013 |