CN203325801U - Thermistor-based deenergizing, cooling and resetting type temperature controller - Google Patents

Thermistor-based deenergizing, cooling and resetting type temperature controller Download PDF

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Publication number
CN203325801U
CN203325801U CN2013203146010U CN201320314601U CN203325801U CN 203325801 U CN203325801 U CN 203325801U CN 2013203146010 U CN2013203146010 U CN 2013203146010U CN 201320314601 U CN201320314601 U CN 201320314601U CN 203325801 U CN203325801 U CN 203325801U
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CN
China
Prior art keywords
spring
thermistor
leading truck
short
long
Prior art date
Application number
CN2013203146010U
Other languages
Chinese (zh)
Inventor
余敏虎
Original Assignee
长沙市新东南电器科技有限公司
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Priority to CN2013203146010U priority Critical patent/CN203325801U/en
Application granted granted Critical
Publication of CN203325801U publication Critical patent/CN203325801U/en

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Abstract

The utility model discloses a thermistor-based deenergizing, cooling and resetting type temperature controller, which comprises a housing, a movable reed arranged at the middle part of the housing, a movable contact arranged on the movable reed, a static contact and a static contact piece both in contact with the movable contact, a ceramic thermistor heating sheet connected with the static contact piece, a 2T terminal, a long spring, a short rivet, a short spring and a long rivet. The long spring, the short rivet, the short spring and the long rivet are arranged on the 2T terminal and are connected with the 2T terminal. The 2T terminal is connected with the movable reed through the long spring and the short rivet and is also connected with the static contact piece through the short spring and the long rivet. A ceramic thermistor is connected with a guide rack through a heat-conductive and electricity-conductive sheet. A bimetallic strip is arranged on the guide rack and the middle part of the bimetallic strip is provided with an actuating strut. The actuating strut is guided in direction through a hole arranged at the middle part of the guide rack. The upper part of the actuating strut is in contact with the movable contact. The terminal is connected with the static contact piece through the long rivet. The upper part of the long rivet is in fixed contact with the heat-conductive and electricity-conductive sheet.

Description

The cooling thermostat that resets of thermistor outage
Technical field
The utility model relates to the thermostat field, particularly the cooling thermostat field that resets of thermistor outage.
Background technology
At present, some household electrical appliance utensils are equipped with the homing position type thermostat of cutting off the electricity supply, for the overtemperature protection of household electrical appliance utensil.When household electrical appliance utensil excess Temperature or dry combustion method, new ceramics thermistor thermostat is action protection voluntarily, and permanent open circuit, only cut off the electricity supply, and the ceramic thermal resistance thermostat could conducting.This thermostat is to connect the ceramic thermal resistance heater at spring terminal, after switching on power, the household electrical appliance utensil is started working, as while overtemperature, dry combustion method occurring, surpass the temperature of setting, the bimetal leaf counteragent of thermostat inside, and promote the ceramic bar action, the moving contact on the promotion shell fragment leaves with fixed contact and is connected.Now, the electric current ceramic thermal resistance heater of flowing through.Because the thermistor heater is the high resistance device.Resistance is far longer than the resistance of household electrical appliance utensil heater block, and institute is far longer than household electrical appliance utensil temperature because of thermistor heater heating temp.Make the household electrical appliance heat generating components in stopping heated condition.And thermistor heater persistent fever, and heat is passed to bimetal leaf, and make bimetal leaf continue to keep the tripping state, disconnect all the time the connection of dynamic and static contact, only have deenergization, just can stop.Thermistor heater cooling is lowered the temperature bimetal leaf simultaneously, recovers shape under the normal temperature state, moving contact under the effect of spring leaf elastic force, the reinstatement state.
Traditional PTC thermostat heater, need to use the metal electrode conduction and could realize being connected with lead terminal.In use, the easy oxidation in metallic conduction position, cause dynamic and static contact surface oxidation in chamber, and thermostat in use has not conducting phenomenon many.The cooling thermostat that resets of traditional thermal resistance outage, because space in cavity is little, the leading truck structure arranges complexity, causes leading truck accessory assembling difficulty high, unstable product quality.Pass logical product in use, the selection of material non-refractory, easily aging, useful life is short, and temperature applicable range is little, effectively working temperature is the 50-120 degree.
The utility model content
(1) technical problem that will solve
The purpose of this utility model is to solve that traditional thermal resistance outage is cooling resets that the thermostat temperature applicable range is little, the leading truck structure arranges complexity, causes leading truck accessory assembling difficulty high, the problem of unstable product quality.
(2) technical scheme
The utility model
Housing is set, the aluminium lid that can be interlocked with housing, be arranged on the movable contact spring at housing middle part, be arranged on the moving contact on movable contact spring, the fixed contact contacted with moving contact, static contact, the thermistor be connected with static contact, the 2T terminal with and the long spring of upper connection, short rivet and short spring, long rivet, wherein the 2T terminal is by long spring, short rivet and movable contact spring UNICOM, the 2T terminal is by short spring, long rivet and static contact UNICOM, connect leading truck by the conductive and heat-conductive sheet on the thermistor fever tablet, be provided with bimetal leaf on leading truck, the bimetal leaf middle part is provided with actuating strut, actuating strut is by being arranged on the hole guiding at leading truck middle part, actuating strut top contacts with moving contact.
Preferably, the thermistor fever tablet is ceramic thermal resistance.
Preferably, leading truck is crimped on described thermistor fever tablet, leading truck has the periphery butt of carrier for bimetal disk, the leading truck middle part has the hole of for actuating strut, locating, passing through, the leading truck bottom is provided with the convex flat platform, and the convex flat platform is provided with the hole that supplies long spring and short spring to fix, locate.
Preferably, long spring and short spring are volute spring.
Preferably, housing, actuating strut and leading truck are made by 95 potteries.
Preferably, the conductive and heat-conductive sheet is made by silver strip.
(3) beneficial effect
The utility model solves that the outage of traditional thermal resistance is cooling resets that the thermostat temperature applicable range is little, the leading truck structure arranges complexity, causes leading truck accessory assembling difficulty high, the problem of unstable product quality.Can make the cooling thermostat temperature applicable upper limits that resets of thermistor outage extend to 220 ℃, simultaneously, because use novel leading truck, can reduce the product quality problem caused because of the assembly technology problem.
The accompanying drawing explanation
Fig. 1 is the front section view of the cooling thermostat that resets of thermistor outage in the utility model embodiment;
Fig. 2 is the reverse side cutaway view of the cooling thermostat that resets of thermistor outage in the utility model embodiment;
Fig. 3 is the leading truck structure chart of the cooling thermostat that resets of thermistor outage in the utility model embodiment;
In figure: the long rivet of 1-, 2-moving contact, 3-static contact, 4-aluminium lid, 5-actuating strut, 6-bimetal leaf, the 7-thermistor, 8-leading truck, the long spring of 9-, 10-fixed contact, 11-housing, the 12-movable contact spring, 13-2T terminal, 14-short rivet, the short spring of 15-, 16-conductive and heat-conductive sheet.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described further.Following examples are only for the utility model is described, but are not used for limiting scope of the present utility model.
Fig. 1, Figure 2 shows that the structure chart of the cooling thermostat that resets of the utility model thermistor outage, Figure 3 shows that the leading truck structure chart of the cooling thermostat that resets of thermistor outage in this new embodiment.
Embodiment
The utility model includes ceramic shell 11, is arranged on the spring leaf 12 at ceramic shell 11 middle parts, and moving contact 2 contacts that are riveted on spring leaf 12 are riveted on the fixed contact 10 on static contact 3, form a UNICOM.Be connected short rivet 14 with 2T terminal 13, spring leaf 12 connects long spring 9 its silver strips of taper, thermistor 7 connects other end silver strip and connects the short spring 15 of taper, its lower static contact 3, long rivet 1, another terminal 13 UNICOMs.Can when beating, temperature controlled pair of gold plaque 6 promote insulating bar 5 like this, be 2, quiet 10 contacts disconnect, use thermistor 7 to form loop, and the evolution of heat is in time conducted to ceramic leading truck 8, and then to be that two gold plaques 6 keep cutting off moving 2, state is left in quiet 10 contacts, until manually cut away power supply, reply original state.The spring leaf 12 of structure and thermostat arrangement is and is connected in parallel with static contact 3.
When reality is used, by terminal 13, switching on power, open appliance mains switch, the moving contact 2 in thermostat and fixed contact 10 are connected the power supply of whole circuit, and thermostat is arranged on the heat generating components of electrical equipment, under the heat effects of heat generating components, aluminium lid 4, two gold plaques 6 heat up gradually, and bimetal leaf 6 is when bearing rated temperature, actuating strut 5 is pushed in bimetal leaf 6 immediate skips, makes moving contact 2 leave fixed contact 10 with advancing to cut off the electricity supply.And now thermistor 7 switches on power and starts heating, heat is passed to ceramic leading truck 8 and bimetal leaf 6, keeps bimetal leaf 6 trippings to push the state that actuating strut moving contact 2 leaves fixed contact 10 and has guaranteed system safety.Power supply to be turned off, thermistor 7 stops heating, bimetal leaf 6 reinstatement states, the actuating strut 5 made return moving contact 2 under the effect of spring leaf elastic force contacts with fixed contact 10, and system returns original state.
Above execution mode is only for illustrating the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that do not break away from spirit and scope of the present utility model; can also make a variety of changes and modification, therefore all technical schemes that are equal to also belong to protection category of the present utility model.

Claims (6)

1. the cooling thermostat that resets of thermistor outage, comprise housing (11), the aluminium lid (4) be interlocked with housing (11), be arranged on the movable contact spring (12) at housing (11) middle part, be arranged on the moving contact (2) on movable contact spring (12), the fixed contact (10) contacted with moving contact (2), static contact (3), the thermistor (7) be connected with static contact (3), 2T terminal (13) with and the long spring (9) of upper connection, short rivet (14) and short spring (15), long rivet (1), wherein 2T terminal (13) is by long spring (9), short rivet (14) and movable contact spring (12) UNICOM, 2T terminal (13) is by short spring (15), long rivet (1) and static contact (3) UNICOM, it is characterized in that: thermistor fever tablet (7) is upper connects leading truck (8) by conductive and heat-conductive sheet (16), be provided with bimetal leaf (6) on leading truck (8), bimetal leaf (6) middle part is provided with actuating strut (5), actuating strut (5) is by being arranged on the hole guiding at leading truck (12) middle part, actuating strut (5) top contacts with moving contact (2).
2. the cooling thermostat that resets of thermistor outage according to claim 1, is characterized in that, described thermistor fever tablet (7) is ceramic thermal resistance.
3. the cooling thermostat that resets of thermistor according to claim 1 outage, it is characterized in that, described leading truck (8) is crimped on described thermistor fever tablet, leading truck has the periphery butt of carrier for bimetal leaf (6), the leading truck middle part has the hole of locating, passing through for actuating strut (5), the leading truck bottom is provided with the convex flat platform, and the convex flat platform is provided with the hole that supplies long spring (9) and short spring (15) to fix, locate.
4. the cooling thermostat that resets of thermistor outage according to claim 1, is characterized in that, described long spring and short spring are volute spring.
5. the cooling thermostat that resets of thermistor outage according to claim 1, is characterized in that, described housing (11), actuating strut (5) and leading truck (8) are made by 95 potteries.
6. the cooling thermostat that resets of thermistor outage according to claim 1, is characterized in that, described conductive and heat-conductive sheet (16) is made by silver strip.
CN2013203146010U 2013-06-03 2013-06-03 Thermistor-based deenergizing, cooling and resetting type temperature controller CN203325801U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203146010U CN203325801U (en) 2013-06-03 2013-06-03 Thermistor-based deenergizing, cooling and resetting type temperature controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203146010U CN203325801U (en) 2013-06-03 2013-06-03 Thermistor-based deenergizing, cooling and resetting type temperature controller

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CN203325801U true CN203325801U (en) 2013-12-04

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104051188A (en) * 2014-07-07 2014-09-17 佛山市通宝华龙控制器有限公司 Short-circuited prevention power failure resetting type snap action thermostat
CN104217897A (en) * 2014-08-13 2014-12-17 东莞市凯恩电子科技有限公司 Spring-type power failure restoration temperature control switch capable of controlling two kinds of circuits
CN104217895A (en) * 2014-08-13 2014-12-17 东莞市凯恩电子科技有限公司 Spring-type power failure restoration temperature control switch capable of controlling multiple load circuits
CN104269323A (en) * 2014-08-13 2015-01-07 东莞市凯恩电子科技有限公司 Outage reset temperature-control switch capable of controlling multiple load circuits
CN104269324A (en) * 2014-08-13 2015-01-07 东莞市凯恩电子科技有限公司 Outage reset temperature-control switch capable of controlling two load circuits
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
WO2021003971A1 (en) * 2019-07-09 2021-01-14 浙江达威电子股份有限公司 Temperature control device for cup body of high-speed blender

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104051188A (en) * 2014-07-07 2014-09-17 佛山市通宝华龙控制器有限公司 Short-circuited prevention power failure resetting type snap action thermostat
CN104051188B (en) * 2014-07-07 2015-06-17 佛山市通宝华龙控制器有限公司 Short-circuited prevention power failure resetting type snap action thermostat
CN104217897A (en) * 2014-08-13 2014-12-17 东莞市凯恩电子科技有限公司 Spring-type power failure restoration temperature control switch capable of controlling two kinds of circuits
CN104217895A (en) * 2014-08-13 2014-12-17 东莞市凯恩电子科技有限公司 Spring-type power failure restoration temperature control switch capable of controlling multiple load circuits
CN104269323A (en) * 2014-08-13 2015-01-07 东莞市凯恩电子科技有限公司 Outage reset temperature-control switch capable of controlling multiple load circuits
CN104269324A (en) * 2014-08-13 2015-01-07 东莞市凯恩电子科技有限公司 Outage reset temperature-control switch capable of controlling two load circuits
CN104269324B (en) * 2014-08-13 2017-11-10 骆伟法 It can control the power-off restoration temperature detect switch (TDS) of two kinds of load circuits
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
WO2021003971A1 (en) * 2019-07-09 2021-01-14 浙江达威电子股份有限公司 Temperature control device for cup body of high-speed blender

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GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131204

Termination date: 20150603