CN101345160B - Double-pole single-throw type temperature controller - Google Patents
Double-pole single-throw type temperature controller Download PDFInfo
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- CN101345160B CN101345160B CN2008101205677A CN200810120567A CN101345160B CN 101345160 B CN101345160 B CN 101345160B CN 2008101205677 A CN2008101205677 A CN 2008101205677A CN 200810120567 A CN200810120567 A CN 200810120567A CN 101345160 B CN101345160 B CN 101345160B
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- housing
- terminal
- push rod
- bimetal leaf
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Abstract
The invention provides double-pole single throw typed temperature controller, comprising a first shell, a second shell which is laminated on the first shell, and a dual-metal sheet; the double-pole single throw typed temperature controller is characterized in that the double-pole single throw typed temperature controller also comprises a driving rod; the bottom end of the driving rod is adjacent to the dual-metal sheet and the top end thereof is adjacent to a second contact pair; furthermore, the middle position of the driving rod is provided with a lateral external convex part which is adjacent to a first contact pair; furthermore, under the driving of the dual-metal sheet, the top end of the driving rod and the external convex part at the middle part respectively lead the first contact pair and the second contact pair to be pushed away and separated simultaneously. Compared with the prior art, the double-pole single throw typed temperature controller connects out a two-step circuit which requires to be synchronously turned on or turned off by two temperature controller shells which are laminated with each other, and adopts only one dual-metal sheet to sense the temperature; furthermore, one driving rod is used for controlling the closing and opening of the contact pairs in the first shell and the second shell simultaneously, thus leading the circuits in the two shells to be turned on or turned off simultaneously and ensuring the synchronization of the two circuits.
Description
Technical field
The present invention relates to a kind of thermostat, this thermostat is applied on the equipment or electrical equipment of realization double-pole single-throw (D.P.S.T.) control modes such as solar water heater, air-conditioning, household electrical appliance and Aero-Space.
Background technology
Existing temperature controller switch configuration is generally single-pole single-throw(SPST, single-pole double throw and double-pole single-throw (D.P.S.T.), and wherein, single-pole double throw i.e. a switch control set of circuits, and this group circuit is controlled one group of normally-closed contact, and along with the rising of temperature, this group normally-closed contact breaks off; In case when application of temperature dropped to specific reset temperature, the contact can automatically reset to its normally off.Single-pole double throw is basic identical with single-pole single-throw(SPST, but this group circuit is controlled two groups of contacts, and auxiliary contact were closed when normally-closed contact broke off, and circuit is connected; Auxiliary contact broke off when normally-closed contact resetted, and circuit breaks off.
And double-pole single-throw (D.P.S.T.) and above-mentioned two kinds of switching configurations are different, and it is meant that a switch controls two groups of circuit, and set of circuits is controlled one group of contact, when temperature rises, and two groups of contacts or closed simultaneously, or break off simultaneously.In case when application of temperature dropped to specific reset temperature, the contact can automatically reset to its reset condition.Therefore, in practical application,, generally use a slice bimetal leaf temperature-sensitive and control the two-stage switch, reach the purpose of controlling two groups of independent circuits simultaneously in order to guarantee the synchronism of two-stage circuit.But; Mostly employed mode is the push rod of two-stage switch is conflicted respectively abreast on same bimetal leaf in the prior art; Promptly on same bimetal leaf, have two contact points that offset with different push rods, these two contact points may cause bimetal leaf when kick takes place, and flash because of discontinuity equalization; Or be to produce to wave; The result who brings thus is the synchronism that can not well guarantee two-stage circuit, may produce time-delay between the two, causes damage to electric equipment.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of can effectively avoid bimetal leaf to flash or wave and make that life of product is long, the double-pole single-throw type temperature controller of good stability to above-mentioned prior art present situation.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: this double-pole single-throw type temperature controller includes
First housing, it is right that this first housing includes first contact, and said first contact is to being electrically connected with two binding posts that are exposed to outside said first housing respectively;
Second housing is superimposed upon on said first housing, and it is right that this second housing includes second contact, and said second contact is to being electrically connected with two binding posts in addition that are exposed to outside said second housing respectively;
Bimetal leaf is arranged in described first housing;
It is characterized in that: also include drive rod; The contiguous described bimetal leaf in the bottom of this drive rod; Contiguous described second contact, top is right; And it is right that this drive rod has contiguous described first contact of side direction male part at medium position, and can be under the driving of bimetal leaf, the top of drive rod with respectively first contact is separated backing down, second contact simultaneously in the male part at middle part;
Described drive rod can include first push rod that is arranged in first housing and second push rod that is arranged in second housing; Said first push rod is the hollow stem with axis hole; The axis hole aperture of the diameter of described second push rod and said first push rod is suitable; This second push rod is located in the axis hole of said first push rod, and described first push rod is concordant with the bottom of second push rod and to be resisted against the center curvature face of said bimetal leaf simultaneously inner.Through two push rods that connect together each other, guarantee concentricity, make that when bimetal leaf generation kick synchronism has been improved to breaking off simultaneously or closure in the contact in first housing and second housing.
Described first contact is to including first moving contact, first fixed contact; Said first housing be externally connected to the first terminal, second terminal, wherein, described first moving contact is fixedly connected on an end of one first reed; The other end of this first reed links to each other with said the first terminal; Said first fixed contact is fixedly connected on said second terminal, is under the initial reset state at said bimetal leaf, and said first fixed contact contacts conducting with first moving contact; Said bimetal leaf be in said first fixed contact and first moving contact under the reverse kick state on the top of said first push rod instead with separating disconnection down.
Described second contact is to including second moving contact, second fixed contact; Said second housing be externally connected to the 3rd terminal, the 4th terminal, wherein, described second moving contact is fixedly connected on an end of one second reed; The other end of this second reed links to each other with said the 3rd terminal; Said fixed contact is fixedly connected on said the 4th terminal, is under the initial reset state at said bimetal leaf, and said second fixed contact contacts conducting with second moving contact; Be under the reverse kick state at said bimetal leaf, said second fixed contact separates disconnection with second moving contact on the top of said second push rod instead with descending.
For fixing bimetal leaf, and can let the bimetal leaf temperature-sensitive sensitive, said first lower part of frame is connected with the temperature-sensitive end cap, forms a cavity between this end cap and said first housing, and described bimetal leaf is contained in this cavity.
For the ease of calandria is installed, described end cap below also is connected with the 3rd housing, and the 3rd housing includes five terminal and the 6th terminal that is communicated with external circuits, and, on described five terminal, the 6th terminal, also be connected with conductive contact film respectively.
Described end cap external fixation is provided with the PTC thermistor, is used for transmitting heat to bimetal leaf, and the conductive contact film on this thermistor and said five terminal, the 6th terminal offsets respectively and generates heat through described external circuits conducting.
Compared with prior art; The invention has the advantages that: will need the two-stage circuit of synchronous conducting or disconnection to pick out through mutual superposition two thermostat housings together; Only adopt a slice bimetal leaf temperature sensor, and, the right closed or disconnection in contact in first housing and second housing controlled simultaneously through a drive rod; Make the interior circuit of two housings reach synchronously and be switched on or switched off, guarantee the synchronism of two circuit.Particularly; Adopt two pusher structures, promptly the push rod in one of them thermostat housing is a hollow stem, and the push rod in another thermostat housing is for can be located in the solid hopkinson bar in this hollow stem; Two push rods can keep concentricity preferably; When bimetal leaf generation kick is moved, can guarantee that two push rods move simultaneously, conducting or disconnection when realizing two-stage circuit.And, because two push rods are set-located with one heart, and have only a kick contact point between the bimetal leaf, whole thermostat product in the course of the work, bimetal leaf is difficult for flashing, not waving, and makes that the life-span of thermostat is long, good stability.
Description of drawings
Fig. 1 is the perspective view of the embodiment of the invention;
Fig. 2 is the user mode cutaway view (bimetal leaf is under the initial reset state) of the embodiment of the invention;
Fig. 3 is the user mode cutaway view (bimetal leaf is taking place under the reverse kick state) of the embodiment of the invention.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Like Fig. 1～shown in Figure 3, be a preferred embodiment of the present invention:
This double-pole single-throw type temperature controller; Include first housing 1 that adopts the bakelite material respectively and be superimposed upon second housing 2 on first housing; Be connected with temperature-sensitive end cap 11 in the bottom of first housing 1; Forming the bimetal leaf 3 that a cavity 12, has auto-reset function between this end cap 11 and first housing 1 is contained in this cavity 12.
Of the present inventionly be contemplated that basically: design a kind of drive rod; The contiguous bimetal leaf 3 in the bottom of this drive rod; Contiguous second contact, top is right; It is right that this drive rod has contiguous first contact of side direction male part at medium position, and under the driving of bimetal leaf, the top of drive rod and middle part male part can be simultaneously separated to, second contact first contact respectively to backing down.Can when kick takes place bimetal leaf 3, can back down first contact simultaneously as long as satisfy, just can reach the purpose that the two-stage circuit in first housing 1 and second housing 2 is switched on or switched off synchronously right with second contact.
Consider the feasibility of actual production; Described drive rod can be two first push rod 13 and second push rods 21 that are provided with one heart; Wherein, first housing 1 have first contact to first push rod 13, this first contact is to comprising first moving contact 14, first fixed contact 15; The outside rivet of first housing 1 is connected with the first terminal 16, second terminal 17; First moving contact 14 is fixedly connected on an end of first reed 18, and the other end of first reed 18 links to each other with the first terminal 16, and first fixed contact 15 is fixedly connected on second terminal 17;
And; First push rod 13 is for having the hollow stem of axis hole; The axis hole aperture of the diameter of second push rod 21 and first push rod 13 is suitable; This second push rod 21 is located in the axis hole of first push rod 13, and first push rod 13 is concordant with the bottom of second push rod 21 and to be resisted against the center curvature face of bimetal leaf 3 simultaneously inner.
Be under the initial reset state at bimetal leaf 3; The top of first push rod 13 and second push rod 21 close on respectively be arranged on first contact formed by first fixed contact 15 and first moving contact 14 to and second contact formed by second fixed contact 23 and second moving contact 22 right; First fixed contact 15 contacts conducting with first moving contact 14, and second fixed contact 23 contacts conducting with second moving contact 22;
Be under the reverse kick state at bimetal leaf 3, between first fixed contact 15 and first moving contact 14, between second fixed contact 23 and second moving contact 22 respectively simultaneously on the top of first push rod 13, second push rod 21 instead with separating disconnection down.
Below the end cap 11 of first housing 1, also be connected with the 3rd housing 4; The 3rd housing 4 is connected on the base plate 7; Include five terminal the 41 and the 6th terminal 42 that is communicated with external circuits, and, on five terminal the 41, the 6th terminal 42, also be connected with conductive contact film 5 respectively.End cap 11 external fixation are provided with a PTC thermistor 6, and PTC thermistor 6 is to adopt ceramic material to process, and have high temperature resistantly, and intensity is high, and is not yielding, and perfect heat-dissipating is safe and reliable through low voltage operating.Bimetal leaf 3 through end cap 11 from thermistor 6 at last temperature-sensitive, thermistor 6 through with sub the 41, the 6th terminal 42 of five terminal on conductive contact film 5 offset respectively and generate heat through the external circuits conducting.
Top at second housing 2 also has top cover 8, plays certain dustproof and sealing function.
The basic functional principle of present embodiment:
After giving 6 energisings of PTC thermistor; The heat that thermistor 6 produces is passed to bimetal leaf 3; The action of direction kick takes place in bimetal leaf 3 after having arrived uniform temperature; Thereby first push rod 13 and second push rod 21 are up promoted simultaneously, and back down first contact simultaneously to right with second contact, the circuit in first housing 1 and second housing 2 breaks off simultaneously;
After 6 outages of PTC thermistor; By the time thermistor 6 natural heat dissipations are after uniform temperature; Bimetal leaf 3 automatically replies, and first push rod 13 and second push rod 21 fall after rise simultaneously, at this moment; First contact to second contact to breaking off simultaneously again, first housing 1 recloses with second housing, 2 interior circuit.
Adopt the thermostat of present embodiment structure to have low-power consumption, do not have dry sound, shockproof and characteristics that mechanical performance is strong, safe and reliable, time precision is high.Make the thermistor heating through low-voltage, thereby make the action of bimetal leaf kick, break off through low-voltage, natural heat dissipation makes the bimetal leaf kick be returned to initial condition.The thermostat of this product carries working stability, and time precision is high, and is the life-span long (product useful life more than 10,000 times), safe and reliable.
In addition, in the present embodiment, the binding post that first housing and second housing comprise all adopts the thick brass of 0.8mm; First reed and second reed then adopt the thick import beryllium-bronze of 0.25mm, and both weld together, and contact resistance is little; When big electric current passed through, caloric value was less, and good heat dissipation effect.Simultaneously, adopting diameter is the major diameter bimetal leaf of 19mm, when the control uniform temp; The bimetal leaf deformation radian that diameter is big more is big more, and the distance that two contacts are backed down increases, when bearing great current and high voltage; Can not produce the arcing phenomenon, guarantee the life-span of product.
Thermostat of the present invention can the multiple different mode of connection, can control six at most simultaneously and advance six and go out, control multiple circuit, multiple devices, broken one-in-and-one-out and two in the past advance two go out to control the on-off circuit device the rule duty, filled up the blank in domestic this field.
Claims (6)
1. a double-pole single-throw type temperature controller includes
First housing (1), it is right that this first housing (1) includes first contact, and said first contact is to being electrically connected with two binding posts that are exposed to outside said first housing (1) respectively;
Second housing (2) is superimposed upon on said first housing (1), and it is right that this second housing (2) includes second contact, and said second contact is to being electrically connected with two binding posts in addition that are exposed to outside said second housing (2) respectively;
Bimetal leaf (3) is arranged in described first housing (1);
It is characterized in that: also include drive rod; The contiguous described bimetal leaf (3) in the bottom of this drive rod; Contiguous described second contact, top is right; And it is right that this drive rod has contiguous described first contact of side direction male part at medium position, and can be under the driving of bimetal leaf (3), the top of drive rod with respectively first contact is separated backing down, second contact simultaneously in the male part at middle part;
Described drive rod includes and is arranged on first push rod (13) in first housing (1) and is arranged on second push rod (21) in second housing (2); Said first push rod (13) is for having the hollow stem of axis hole; The axis hole aperture of the diameter of described second push rod (21) and said first push rod (13) is suitable; This second push rod (21) is located in the axis hole of said first push rod (13); And described first push rod (13) is concordant with the bottom of second push rod (21) and to be resisted against the center curvature face of said bimetal leaf (3) simultaneously inner.
2. double-pole single-throw type temperature controller according to claim 1; It is characterized in that: described first contact is to including first moving contact (14), first fixed contact (15); Said first housing (1) be externally connected to the first terminal (16), second terminal (17), wherein, described first moving contact (14) is fixedly connected on an end of one first reed (18); The other end of this first reed (18) links to each other with said the first terminal (16); Said first fixed contact (15) is fixedly connected on said second terminal (17), is under the initial reset state at said bimetal leaf (3), and said first fixed contact (15) contacts conducting with first moving contact (14); Said bimetal leaf (3) be in said first fixed contact (15) and first moving contact (14) under the reverse kick state on the top of said first push rod (13) instead with separating disconnection down.
3. double-pole single-throw type temperature controller according to claim 1; It is characterized in that: described second contact is to including second moving contact (22), second fixed contact (23); Said second housing (2) be externally connected to the 3rd terminal (24), the 4th terminal (25), wherein, described second moving contact (22) is fixedly connected on an end of one second reed (26); The other end of this second reed (26) links to each other with said the 3rd terminal (24); Said second fixed contact (23) is fixedly connected on said the 4th terminal (25), is under the initial reset state at said bimetal leaf (3), and said second fixed contact (23) contacts conducting with second moving contact (22); Be under the reverse kick state at said bimetal leaf (3), said second fixed contact (23) separates disconnection with second moving contact (22) on the top of said second push rod (21) instead with descending.
4. according to claim 1,2 or 3 described double-pole single-throw type temperature controllers; It is characterized in that: the bottom of said first housing (1) is connected with temperature-sensitive end cap (11); Form a cavity (12) between this end cap (11) and said first housing (1), described bimetal leaf (3) is contained in this cavity (12).
5. double-pole single-throw type temperature controller according to claim 4; It is characterized in that: described end cap (11) below also is connected with the 3rd housing (4); The 3rd housing (4) includes five terminal (41) and the 6th terminal (42) that is communicated with external circuits; And, on described five terminal (41), the 6th terminal (42), also be connected with conductive contact film (5) respectively.
6. double-pole single-throw type temperature controller according to claim 5; It is characterized in that: described end cap (11) external fixation is provided with a PTC thermistor (6), and the conductive contact film (5) on this thermistor (6) and said five terminal (41), the 6th terminal (42) offsets respectively and generates heat through described external circuits conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101205677A CN101345160B (en) | 2008-08-20 | 2008-08-20 | Double-pole single-throw type temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101205677A CN101345160B (en) | 2008-08-20 | 2008-08-20 | Double-pole single-throw type temperature controller |
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| Publication Number | Publication Date |
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| CN101345160A CN101345160A (en) | 2009-01-14 |
| CN101345160B true CN101345160B (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101205677A Expired - Fee Related CN101345160B (en) | 2008-08-20 | 2008-08-20 | Double-pole single-throw type temperature controller |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134579A (en) * | 2014-07-28 | 2014-11-05 | 常州常胜精密电子有限公司 | Multi-switch temperature protector |
| GB201500342D0 (en) * | 2015-01-09 | 2015-02-25 | Strix Ltd | Apparatus for heating food |
| CN106783389B (en) * | 2017-03-24 | 2020-06-26 | 东莞市楷亿电子科技有限公司 | Thick-film heating plate contact type dry-heating-preventing temperature controller and dry-heating-preventing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2333085Y (en) * | 1998-05-12 | 1999-08-11 | 龙口市汽车风扇离合器厂 | Automotive thermal double-metal temp. control switch |
| CN2358549Y (en) * | 1998-12-31 | 2000-01-12 | 佛山市城区华立温控器厂 | Ceramic kick type thermoregulator |
| CN201247733Y (en) * | 2008-08-20 | 2009-05-27 | 朱英年 | Double-pole single-throw type temperature controller |
-
2008
- 2008-08-20 CN CN2008101205677A patent/CN101345160B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2333085Y (en) * | 1998-05-12 | 1999-08-11 | 龙口市汽车风扇离合器厂 | Automotive thermal double-metal temp. control switch |
| CN2358549Y (en) * | 1998-12-31 | 2000-01-12 | 佛山市城区华立温控器厂 | Ceramic kick type thermoregulator |
| CN201247733Y (en) * | 2008-08-20 | 2009-05-27 | 朱英年 | Double-pole single-throw type temperature controller |
Non-Patent Citations (1)
| Title |
|---|
| JP平11-329187A 1999.11.30 |
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| CN101345160A (en) | 2009-01-14 |
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