CN102456507A - Temperature controller - Google Patents
Temperature controller Download PDFInfo
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- CN102456507A CN102456507A CN2010105185383A CN201010518538A CN102456507A CN 102456507 A CN102456507 A CN 102456507A CN 2010105185383 A CN2010105185383 A CN 2010105185383A CN 201010518538 A CN201010518538 A CN 201010518538A CN 102456507 A CN102456507 A CN 102456507A
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Abstract
The invention provides a temperature controller, which comprises a pedestal, a left terminal, a right terminal, two elastic pieces, two moving contacts, two fixed contacts, a fixed connecting plate, a cover plate, two operating rods and two bimetallic strips, wherein the pedestal is provided with a top surface and a bottom surface which are opposite to each other; the top surface is provided with two grooves, a center groove positioned between the two grooves and through grooves positioned between the grooves and the center groove in a sunken way; the left and right terminals are fixed on the bottom surface; the two elastic pieces are provided with a fixed end and a free end respectively; the fixed ends are fixed in the grooves and connected with the left and right terminals respectively; the two moving contacts are fixed at the free ends respectively; the two fixed contacts contact the moving contacts respectively; the fixed connecting plate is fixed at the center groove, and is provided with two fixing holes in which the fixed contacts are fixed respectively; the cover plate covers the pedestal, and is provided with two recesses corresponding to the two through grooves and two through holes passing through the two recesses respectively; the two operating rods are arranged in the two through holes respectively; the two bimetallic strips are arranged in the two recesses respectively, and are molded at different heating temperatures; and the left terminal, the right terminal, the two elastic pieces and the fixed connecting plate are connected in series, thereby realizing a dual protection function.
Description
Technical field
The present invention relates to a kind of thermostat, relate to a kind of duplex thermostat especially.
Background technology
China's Mainland patent CN200910096918.X discloses a kind of Kick type temperature controller, is applied on the dryer, comprises ceramic shell, top cover, sheet metal, contact are right in pairs.
Be provided with in the ceramic shell and be used to back down the slidably push rod that the contact is used.
Sheet metal is arranged in the cavity that housing and top cover form and is inboard near top cover in pairs, an end of push rod and in pairs the center curvature face inside of sheet metal offset.
The contact is to comprising moving contact and the fixed contact that is placed in the housing cavity volume, under the effect of sheet metal in pairs, makes the contact to closed or break off; Under moving contact and the contacted state of fixed contact; External electric heating loop conducting this moment, when moving contact separated with fixed contact, this moment, external electric heating loop was broken off.
Conducting strip comprises that two are flat shape and first reed that is superimposed up and down and second reed; Second reed is positioned at the inboard of first reed; When sheet metal generation kick in pairs; Second reed and push rod directly offset, and first reed and second reed are fixedly linked at an end of corresponding moving contact position.
Under the normal temperature, sheet metal is in the initial reset state in pairs, and moving contact contacts with fixed contact, circuit turn-on.Under heating resistor no power state, but sense on the limiting temperature that extraneous operating ambient temperature is elevated to sheet metal in pairs in limited time when the top cover of temperature-sensitive, in pairs sheet metal generation kick; Sheet metal promotion push rod moves upward in pairs; Push rod backs down the conducting strip of being made up of first reed and second reed, thereby moving contact is separated with fixed contact, and the first terminal and second terminal open circuit; Circuitry cuts, dryer quits work; When temperature reduced, kick took place in sheet metal once more in pairs, is returned to initial condition, and push rod moves downward under the deadweight effect.Conducting strip falls simultaneously and makes moving contact and fixed contact closed again, and circuit recloses, but the dryer operate as normal.
Because conducting strip is the duplex spring chip architecture of being made up of first reed and second reed; So under the prerequisite that guarantees the thermostat operate as normal; Increased the energising cross-sectional area of conducting strip; Improved the bearing capacity of conducting strip, made the thermostat maximum can bear the electric current of 50A, guaranteed that thermostat can connect high power load.
But, because dryer only uses single thermostat, thus when temperature surpassed sheet metal in pairs bear the limit time, sheet metal can be burnt out in pairs, so, dryer just can't have been realized circuit interruption.
Industry can increase a thermostat usually again in order to deal with problems, and normally realizes circuit interruption to guarantee dryer; But if the sensitivity of two thermostats differs; Also can cause dryer can't normally realize circuit interruption, and the setting of two thermostats, not only install inconvenient; And increased area, but also increased expense.
Therefore, be necessary to design a kind of new thermostat, to improve above-mentioned defective.
Summary of the invention
The purpose of this invention is to provide a kind of thermostat with double protection.
The object of the invention is realized through following technical scheme: a kind of thermostat; Comprise a pedestal; Have the end face and the bottom surface that are oppositely arranged; Be concaved with two grooves in said end face, the central recess between said two grooves, and the groove between a said groove and said central recess; One left terminal is fixed in said bottom surface; One right terminal is fixed in said bottom surface; Two shell fragments, each shell fragment have a stiff end and a free end respectively, and each stiff end is fixed in each groove and connects said left terminal and said right terminal respectively; Two moving contacts, each moving contact is individually fixed in said free end; Two fixed contacts contact said moving contact respectively; Certain fishplate bar is fixed in said central recess, has two fixing holes, and each fixed contact is individually fixed in each fixing hole; One cover plate is placed on the said pedestal, has corresponding two grooves of two recess and runs through two through holes of said two recess respectively; Two actuating struts are installed in respectively in said two through holes; And two bimetal leafs, being installed in respectively in said two recess, the moulding heating temperature of two bimetal leafs is different; The connected mode of said left terminal, said right terminal, said two shell fragments and said location-plate is series connection.
Further, comprise that a public terminal connects the said fishplate bar of deciding.
Further, described two bimetal leafs are expanded by heating type bimetal leaf.
Further, comprise that an outer protecting cover is placed on the said pedestal, said cover plate is outside said between protecting cover and the said pedestal.
Further, described two shell fragments are symmetrical set.
Thermostat of the present invention has following advantage:
(1) connected mode through left terminal, right terminal, two shell fragments and location-plate is set to series connection; And the heating temperature of two bimetal leafs is different; If one of them bimetal leaf is burnt out or was lost efficacy; Also have another bimetal leaf can guarantee that thermostat normally realizes circuit interruption, so thermostat has double protection.
(2) owing on the pedestal two shell fragments are set, four contacts, two actuating struts and two bimetal leafs, to realize double protection functions, not only compact conformation is easy for installation, and has reduced area, but also has reduced expense.
Description of drawings
Fig. 1: be the three-dimensional exploded view of thermostat of the present invention;
Fig. 2: be the three-dimensional combination figure of thermostat of the present invention.
The implication of each Reference numeral sees the following form among the figure:
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described further:
Shown in Fig. 1 to 2, thermostat of the present invention comprises a pedestal 1, three terminal 2, two shell fragments 3, four contacts 4, certain fishplate bar 5, one cover plates 6, two actuating struts 7, two bimetal leafs 8, one outer protecting covers 9, and most rivet 10.
Wherein, Said pedestal 1 is processed by pottery; Have the end face 11 and the bottom surface 12 that are oppositely arranged; Be concaved with two grooves 13 and the central recess 14 between said two grooves 13 in said end face 11, and be provided with the groove 15 between said groove 13 and said central recess 14, said groove 13, said groove 15 and said central recess 14 are connected.
Said three terminals 2 comprise a left terminal 21, one right terminal 22 and a public terminal 23.Wherein, said left terminal 21 is fixed in said bottom surface 12, and said right terminal 22 also is fixed in said bottom surface 12, and said public terminal 23 also is fixed in said bottom surface 12, and is positioned at the centre of said left terminal 21 and said right terminal 22.
Each shell fragment 3 in said two shell fragments 3 has a stiff end 31 and a free end 32 respectively.Each stiff end 31 is fixed in each groove 13 through a rivet 10 and connects said left terminal 21 and said right terminal 22 through this rivet 10 respectively.Each free end 32 is suspended from each groove 15.Two shell fragments 3 are symmetrical set.
Said four contacts 4 comprise two moving contacts 41 and two fixed contacts 42.Wherein, said two moving contacts 41 are individually fixed in said free end 32, and said two fixed contacts 42 contact said moving contact 41 respectively.
Saidly decide fishplate bar 5 and be fixed in said central recess 14 through a rivet 10, have two fixing holes 51, each fixed contact 42 is individually fixed in each fixing hole 51.Saidly decide fishplate bar 5 and also be connected with said public terminal 23 through said rivet 10.The connected mode of said location-plate 5 and said left terminal 21, said right terminal 22 and said two shell fragments 3 is series connection.
Said cover plate 6 is placed on the said pedestal 1, has two recess, 61 corresponding two grooves 15 and runs through two through holes 62 of said two recess 61 respectively.
Said two actuating struts 7 are processed by pottery, are installed in respectively in said two through holes 62, and the corresponding top that is positioned at above-mentioned shell fragment 3.
Said two bimetal leafs 8 are installed in respectively in said two recess 61, and be positioned at above-mentioned actuating strut 7 directly over, said two bimetal leafs 8 are expanded by heating type bimetal leaf, and the moulding heating temperature of said two bimetal leafs 8 is different.
Said outer protecting cover 9 is processed by pottery, is placed on the said pedestal 1, and said cover plate 6 is outside said between protecting cover 9 and the said pedestal 1, and two rivets 10 are fixed together said outer protecting cover 9, said cover plate 6 and said pedestal 1.
The operation principle of thermostat of the present invention is: under the normal temperature, said two bimetal leafs 8 are in the initial reset state, and said moving contact 41 contacts circuit turn-on with said fixed contact 42.After protecting cover 9 temperature-sensitives are heated outside said, inner two bimetal leafs, 8 expanded by heating distortion, will said two actuating struts 7 said two shell fragments 3 of promotions downwards; Thereby said two shell fragments 3 are moved down, realize that said moving contact 41 decide contact 42 and breaks off with said, because of said two bimetal leafs, 8 moulding heating temperatures difference; For example the heating temperature of a bimetal leaf 8 is 100 ℃, and the heating temperature of another bimetal leaf 8 is 150 ℃, when temperature reaches 100 ℃; Heating temperature is that 100 ℃ bimetal leaf 8 does not break off; When temperature surpasses 100 ℃ even when reaching 150 ℃, heating temperature is that 100 ℃ bimetal leaf 8 is burnt out or lost efficacy, and can realize breaking off but another heating temperature is 150 ℃ a bimetal leaf 8; Thereby can guarantee that thermostat normally realizes circuit interruption; So thermostat has the dual security protection effect, and temperature control is accurate, is active in one's movements.
Owing to said two shell fragments 3 are set, said four contacts 4, said two actuating struts 7 and said two bimetal leafs 8 on the said pedestal 1; To realize double protection functions; With the compared with techniques of using two thermostats in the prior art, not only compact conformation is easy for installation; And reduced area, but also reduced expense.
To sum up, thermostat of the present invention has following advantage:
(1) connected mode through left terminal, right terminal, two shell fragments and location-plate is set to series connection; And the heating temperature of two bimetal leafs is different; If one of them bimetal leaf is burnt out or was lost efficacy; Also have another bimetal leaf can guarantee that thermostat realizes that normally circuit interruption does, so thermostat has double protection.
(2) owing on the pedestal two shell fragments are set, four contacts, two actuating struts and two bimetal leafs, to realize double protection functions, not only compact conformation is easy for installation, and has reduced area, but also has reduced expense.
It is emphasized that: above only is preferred embodiment of the present invention; Be not that the present invention is done any pro forma restriction; Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. a thermostat is characterized in that, comprising:
One pedestal has the end face and the bottom surface that are oppositely arranged, is concaved with two grooves in said end face, the central recess between said two grooves, and the groove between a said groove and said central recess;
One left terminal is fixed in said bottom surface;
One right terminal is fixed in said bottom surface;
Two shell fragments, each shell fragment have a stiff end and a free end respectively, and each stiff end is fixed in each groove and connects said left terminal and said right terminal respectively;
Two moving contacts, each moving contact is individually fixed in said free end;
Two fixed contacts contact said moving contact respectively;
Certain fishplate bar is fixed in said central recess, has two fixing holes, and each fixed contact is individually fixed in each fixing hole;
One cover plate is placed on the said pedestal, has corresponding two grooves of two recess and runs through two through holes of said two recess respectively;
Two actuating struts are installed in respectively in said two through holes; And
Two bimetal leafs are installed in respectively in said two recess, and the moulding heating temperature of two bimetal leafs is different;
The connected mode of said left terminal, said right terminal, said two shell fragments and said location-plate is series connection.
2. thermostat according to claim 1 is characterized in that: comprise that further a public terminal connects the said fishplate bar of deciding.
3. thermostat according to claim 1 is characterized in that: said two bimetal leafs are expanded by heating type bimetal leaf.
4. thermostat according to claim 1 is characterized in that: comprise that further an outer protecting cover is placed on the said pedestal, said cover plate is outside said between protecting cover and the said pedestal.
5. thermostat according to claim 1 is characterized in that: said two shell fragments are symmetrical set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105185383A CN102456507A (en) | 2010-10-25 | 2010-10-25 | Temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105185383A CN102456507A (en) | 2010-10-25 | 2010-10-25 | Temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102456507A true CN102456507A (en) | 2012-05-16 |
Family
ID=46039572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105185383A Pending CN102456507A (en) | 2010-10-25 | 2010-10-25 | Temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102456507A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367036A (en) * | 2013-07-04 | 2013-10-23 | 江苏扬工动力机械有限公司 | Temperature control switch |
| CN104992878A (en) * | 2015-07-24 | 2015-10-21 | 佛山市川东磁电股份有限公司 | Multifunctional ceramic dual temperature controller and electric heating container using same |
| CN107704017A (en) * | 2017-10-10 | 2018-02-16 | 佛山市天朋温控器有限公司 | A kind of stator for being used to fix multiple bimetal strip thermostats |
| CN108175287A (en) * | 2018-01-18 | 2018-06-19 | 广东小豚电器科技有限公司 | A kind of two-phase open circuit electrothermal tube temperature controller assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4108725A1 (en) * | 1991-03-18 | 1992-09-24 | Inter Control Koehler Hermann | Thermal switching unit for electrical heater - has regulator and switching stage based upon bimetallic disc elements |
| JPH0525642U (en) * | 1991-09-13 | 1993-04-02 | 旭計器株式会社 | Thermostat |
| CN2624763Y (en) * | 2003-05-15 | 2004-07-14 | 杨宁恩 | Safety protector for electric heating container |
| CN101510483A (en) * | 2009-03-20 | 2009-08-19 | 朱英年 | Kick type temperature controller |
| CN201820706U (en) * | 2010-10-25 | 2011-05-04 | 何爱嫣 | Temperature controller |
-
2010
- 2010-10-25 CN CN2010105185383A patent/CN102456507A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4108725A1 (en) * | 1991-03-18 | 1992-09-24 | Inter Control Koehler Hermann | Thermal switching unit for electrical heater - has regulator and switching stage based upon bimetallic disc elements |
| JPH0525642U (en) * | 1991-09-13 | 1993-04-02 | 旭計器株式会社 | Thermostat |
| CN2624763Y (en) * | 2003-05-15 | 2004-07-14 | 杨宁恩 | Safety protector for electric heating container |
| CN101510483A (en) * | 2009-03-20 | 2009-08-19 | 朱英年 | Kick type temperature controller |
| CN201820706U (en) * | 2010-10-25 | 2011-05-04 | 何爱嫣 | Temperature controller |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367036A (en) * | 2013-07-04 | 2013-10-23 | 江苏扬工动力机械有限公司 | Temperature control switch |
| CN104992878A (en) * | 2015-07-24 | 2015-10-21 | 佛山市川东磁电股份有限公司 | Multifunctional ceramic dual temperature controller and electric heating container using same |
| CN107704017A (en) * | 2017-10-10 | 2018-02-16 | 佛山市天朋温控器有限公司 | A kind of stator for being used to fix multiple bimetal strip thermostats |
| CN108175287A (en) * | 2018-01-18 | 2018-06-19 | 广东小豚电器科技有限公司 | A kind of two-phase open circuit electrothermal tube temperature controller assembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |