CN104217897A - Spring-type power failure restoration temperature control switch capable of controlling two kinds of circuits - Google Patents

Spring-type power failure restoration temperature control switch capable of controlling two kinds of circuits Download PDF

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Publication number
CN104217897A
CN104217897A CN201410398239.9A CN201410398239A CN104217897A CN 104217897 A CN104217897 A CN 104217897A CN 201410398239 A CN201410398239 A CN 201410398239A CN 104217897 A CN104217897 A CN 104217897A
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China
Prior art keywords
leading truck
metal shell
ceramic
contact
spring
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Granted
Application number
CN201410398239.9A
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Chinese (zh)
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CN104217897B (en
Inventor
刘鹏
卢子忱
马永红
郑劝文
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Nanjing Shaoxing Electronics Co., Ltd.
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Dongguan Kain Electronic Science & Technology Co Ltd
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Publication of CN104217897A publication Critical patent/CN104217897A/en
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Abstract

Disclosed is a spring-type power failure restoration temperature control switch capable of controlling two kinds of circuits. The temperature control switch comprises a metal shell, two connection terminals and a metal end cap fixed to the metal shell, a ceramic guide frame heating element arranged between the metal end cap and the metal shell, a ceramic push rod movably and penetratingly arranged on the ceramic guide frame heating element, a bimetallic strip in contact with the ceramic push rod, a movable spring provided with a movable contact and a static contact piece provided with a static contact. When the temperature of loads reaches a set value, the bimetallic strip is heated to kick, the movable contact and the static contact are separated to open the circuits, and the ceramic guide frame heating element is energized to emit heat so as to enable the bimetallic strip and the temperature control switch circuit to be kept under the disconnected state. The bimetallic strip can restore only by deenergization so as to enable the temperature control switch circuit to be closed, and the ceramic guide frame heating element circuit is opened. The temperature control switch can control two kinds of load circuits at the same time and has power failure protection and power failure restoration functions.

Description

Can control the spring-piece type power-off restoration temperature detect switch (TDS) of two kinds of circuit
[technical field]
The present invention relates to the temperature control equipment of electric equipment products, particularly relate to one and can control two kinds of load circuits simultaneously, and have the spring-piece type power-off restoration temperature detect switch (TDS) of controlling two kinds of circuit of power-off protection and power-off restoration function concurrently.
[background technology]
At present, various electric equipments are widely used in people's life, for people's life offers convenience.The safety in utilization of electric equipment, particularly electroheat equipment is product design and produces the major issue that will consider.While producing fault due to the components and parts of power consumption equipment or electronic circuit, can cause equipment heating and temperature rise, in the time that temperature exceedes normal value, can cause equipment fault, thereby affect the normal use of equipment.For this reason, general electrical equipment or electronic equipment are equipped with temperature switch or thermostat, to make deenergization in the time that device temperature exceedes normal value, and protection device security.But existing tool formula kick thermostat only has basic power-off protection function, and can only carry out temperature control to single load circuit, thereby its use is limited to.On the other hand, many these class thermostats are automatically reset according to temperature height, and some equipment is automatically reset not eliminating in potential faults situation, thus exist again fault may and potential safety hazard.
[summary of the invention]
The present invention is intended to address the above problem, and a kind of two kinds of different load circuits of can simultaneously controlling are provided, and has power-off protection and power-off restoration function concurrently, the spring-piece type power-off restoration temperature detect switch (TDS) of controlling two kinds of circuit simple in structure, safe and reliable.
For achieving the above object, the invention provides a kind of spring-piece type power-off restoration temperature detect switch (TDS) of controlling two kinds of circuit, it is characterized in that, this temperature detect switch (TDS) comprises metal shell, can connect two binding posts of two kinds of circuit, metal end, pottery leading truck heater, bimetal leaf, spring plate and static contact, wherein, two binding posts are fixed on metal shell bottom, metal end is fixed on the opening end of metal shell, between metal end and metal shell, be provided with ceramic leading truck heater, on pottery leading truck heater, activity has placed ceramic push rod, the two ends of pottery push rod contact with bimetal leaf and spring plate respectively, one end of spring plate is provided with moving contact, the other end of spring plate contacts with the electrode of ceramic leading truck heater, in metal shell, be also fixed with static contact, this static contact is provided with the fixed contact corresponding with the moving contact of spring plate, one end away from fixed contact of this static contact contacts with the electrode of ceramic leading truck heater, and
In the time that load temperature reaches set point, the described bimetal leaf kick of being heated, promoting ceramic push rod moves, described moving contact is separated with fixed contact and disconnect temperature switch circuit, after temperature switch circuit disconnects, described ceramic leading truck heater makes bimetal leaf maintain off-state because be communicated with heating with spring plate and static contact, and make temperature switch circuit in off-state, only have after power supply disconnection, pottery leading truck heater stops heating, when temperature drops to normal value, bimetal leaf resets, make moving contact and fixed contact closure and make temperature switch circuit conducting, and disconnect ceramic leading truck heater circuit.
Spring plate comprises the shell fragment main body of U-shaped and the contact flat spring being extended to form to opposite side by the bending part of shell fragment main body, one end of shell fragment main body and metal shell riveted joint are fixing, its free end is provided with moving contact, and the free end of contact flat spring contacts with the electrode of ceramic leading truck heater.
One end of static contact is provided with fixed contact, and its other end forms bending, and the end of this bending one end contacts with the electrode of ceramic leading truck heater.
Metal shell is hollow column, and its opening end end is provided with outwardly convex edge, metal shell bottom be provided with two be symmetric for installing the groove of binding post.
Be fixed with two binding posts that can connect two kinds of circuit in metal shell bottom, two binding posts are symmetricly set in two grooves of metal shell bottom, and one end of two binding posts and metal shell riveted joint are fixing, and the other end extends to outside metal shell.
Pottery leading truck heater comprises ceramic leading truck, be located at heating film and the electrode being connected with heating film on ceramic leading truck, described ceramic leading truck is circular plate body, its side relative with metal end is provided with the concave surface of accommodating described bimetal leaf, and the edge of ceramic leading truck is provided with the L shaped step of the ring-type involutory with metal shell.
Contribution of the present invention is, it efficiently solves existing thermostat can only control single load, function singleness, the problem such as service efficiency is low.Temperature detect switch (TDS) of the present invention can be controlled two kinds of different load circuits simultaneously, therefore can effectively improve the service efficiency of temperature detect switch (TDS), saves production cost.The present invention is owing to being provided with and electrode contact or the spring plate separating and the static contact of ceramic leading truck, and conducting or disconnection that it can simple and reliable mechanical structure realizes ceramic leading truck heating circuit, make thermostat reaction sensitiveer, works more reliable.The present invention, except having the basic power-off protection function of temperature detect switch (TDS), also has power-off restoration function, is therefore conducive to eliminate in time potential faults, and has greatly improved the fail safe that electric equipment uses.The features such as the present invention also has simple in structure, and volume is little, reliable operation.
[brief description of the drawings]
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the A of Fig. 1 is to structure cutaway view.
Fig. 3 is that the B of Fig. 1 is to structure cutaway view.
Fig. 4 is ceramic leading truck structural representation of the present invention.
Fig. 5 is spring plate structural representation of the present invention.
Fig. 6 is static contact structural representation of the present invention.
[embodiment]
The following example is further explanation of the present invention, and the present invention is not constituted any limitation.
Consult Fig. 1~Fig. 3, the spring-piece type power-off restoration temperature detect switch (TDS) of controlling two kinds of circuit of the present invention comprises metal shell 10, multiple binding post 20, metal end 30, ceramic leading truck heater 40, bimetal leaf 50, spring plate 60 and static contact 70.
As shown in FIG. 1 to 3, described metal shell 10 is copper hollow column, and its one end is uncovered, and this opening end end is provided with outwardly convex edge 11, for connecting ceramic leading truck heater 40.Be provided with two in metal shell 10 bottoms for installing the groove 12 of binding post, these two grooves 12 are symmetrically distributed on the center line of metal shell 10 bottoms.
As shown in Figure 1, be fixed with two binding posts 20 in metal shell 10 bottoms, they can connect respectively two kinds of different load circuits.Two binding posts 20 are arranged in two grooves 12 of metal shell bottom, and two binding posts 20 are fixing by rivet and metal shell riveted joint.One end of this binding post 20 and metal shell 10 riveted joints are fixing, and the other end extends to outside metal shell.Two kinds of different load circuits can be connected with two binding posts 20 respectively by conventional method.As Fig. 2, Fig. 3, be provided with the metal end 30 of aluminium matter at the opening end of metal shell 10, this metal end 30 is screwed on metal shell 10.
In Fig. 2, Fig. 3, be provided with ceramic leading truck heater 40 between metal end 30 and metal shell 10, it is switched in the time that overtemperature disconnects for temperature detect switch (TDS) and generates heat, and makes bimetal leaf 50 and temperature switch circuit maintain off-state.As shown in Figure 2 to 4, this pottery leading truck heater 40 comprises ceramic leading truck 41, is located at heating film 42 and the electrode 43 being connected with heating film on ceramic leading truck.Described ceramic leading truck 41 is circular plate bodys corresponding with the opening end shape of metal shell 10, a pottery leading truck side relative with metal end 30 is provided with the concave surface 411 of accommodating described bimetal leaf, the edge of pottery leading truck 41 is provided with the L shaped step 412 of the ring-type involutory with metal shell, and it is involutory connection of opening end with metal shell by the L shaped step 412 of this ring-type.Be provided with heating film 42 at the lower surface of ceramic leading truck 41, on heating film 42, be provided with two fan-shaped electrodes 43.At ceramic leading truck, 41 central authorities are provided with the centre bore 413 that wears ceramic push rod 44 use.In the centre bore 413 of ceramic leading truck, be equipped with actively ceramic push rod 44, one end of this pottery push rod 44 contacts with described bimetal leaf 50, and the other end contacts with spring plate 60.
As shown in Figure 2 and Figure 3, between metal end 30 and ceramic leading truck heater 40, be provided with bimetal leaf 50, this bimetal leaf 50 is located in the concave surface 411 of ceramic leading truck, and contact with described ceramic push rod 44, it promotes ceramic push rod 44 for temperature distortion in the time that load temperature exceedes set point and moves to opposite side.
In Fig. 2, Fig. 3, the other end of described ceramic push rod 44 contacts with spring plate 60, and as shown in Figure 5, it comprises shell fragment main body 61 and the contact flat spring 62 of U-shaped to these spring plate 60 structures, and wherein, one end of shell fragment main body 61 is link, and the other end is free end.As Fig. 2, the link of shell fragment main body 61 is fixed on metal shell 10 bottoms with rivet 64 riveted joints, and the free end of shell fragment main body 61 is provided with moving contact 63.At the bending part of shell fragment main body 61, to opposite side bifurcated and extend to form contact flat spring 62, the free end end of contact flat spring 62 forms U-shaped bending, to increase and the contact area of the electrode 43 of ceramic leading truck heater.Contact flat spring 62 is contacted and is conducted electricity by the end of its U-shaped bending and the electrode 43 of ceramic leading truck heater.
As Fig. 2, Fig. 3, in metal shell 10, be also provided with static contact 70, these static contact 70 structures as shown in Figure 6, this static contact 70 is fixed on metal shell 10 inwalls, its one end is provided with the fixed contact corresponding with the moving contact 63 of described spring plate 71, the other end away from fixed contact 71 of static contact 70 forms bending, and the end of this bending one end is provided with little U-shaped bending, and static contact 70 is contacted and conducted electricity by the U-shaped bending of its end and the electrode 43 of ceramic leading truck heater.
Operation principle of the present invention as shown in Figure 2 and Figure 3.In the time that load temperature reaches set point; described bimetal leaf 60 kick of being heated, promotes ceramic push rod 41 and moves to opposite side, and the other end of ceramic push rod 41 promotes spring plate 60 and moves; described moving contact 63 is separated and disconnecting consumers circuit with fixed contact 71, load is carried out to power-off protection.Now; the contact flat spring 62 of spring plate and one end of static contact 70 contact with the electrode 43 of ceramic leading truck heater; make ceramic leading truck heater 40 heating powers; this heating temp makes bimetal leaf 50 maintain off-state always; and make temperature switch circuit in off-state, play the power-off protection effect to load.In the case, only, after having got rid of the fault of load completely and power supply is disconnected, just make ceramic leading truck heater 40 stop heating, when temperature drops to normal value, bimetal leaf 50 resets, and makes moving contact 63 make temperature switch circuit conducting with fixed contact 71 closures.Now, the electrode 43 of the contact flat spring 62 of spring plate and one end of static contact 70 and ceramic leading truck heater is separated, and has therefore disconnected ceramic leading truck heater circuit, has realized power-off protection and power-off restoration function to load simultaneously.
Although the present invention is disclosed by above embodiment, protection scope of the present invention is not limited to this, is not departing under the condition of the present invention's design, and distortion, the replacement etc. that above each member is done all will fall within the scope of claim of the present invention.

Claims (6)

1. can control the spring-piece type power-off restoration temperature detect switch (TDS) of two kinds of circuit for one kind, it is characterized in that, this temperature detect switch (TDS) comprises metal shell (10), can connect two binding posts (20) of two kinds of circuit, metal end (30), pottery leading truck heater (40), bimetal leaf (50), spring plate (60) and static contact (70), wherein, two binding posts (20) are fixed on metal shell (10) bottom, metal end (30) is fixed on the opening end of metal shell (10), between metal end (30) and metal shell (10), be provided with ceramic leading truck heater (40), the upper activity of pottery leading truck heater (40) has placed ceramic push rod (44), the two ends of pottery push rod (44) contact with bimetal leaf (50) and spring plate (60) respectively, one end of spring plate is provided with moving contact (63), the other end of spring plate (60) contacts with the electrode (43) of ceramic leading truck heater, in metal shell (10), be also fixed with static contact (70), this static contact is provided with the fixed contact corresponding with the moving contact of spring plate (71), one end away from fixed contact of this static contact (70) contacts with the electrode (43) of ceramic leading truck heater, and
In the time that load temperature reaches set point, described bimetal leaf (60) kick of being heated, promote ceramic push rod (41) mobile, described moving contact (63) is separated with fixed contact (71) and disconnect temperature switch circuit, after temperature switch circuit disconnects, described ceramic leading truck heater (40) makes bimetal leaf (50) maintain off-state because be communicated with heating with spring plate (60) and static contact (70), and make temperature switch circuit in off-state, only have after power supply disconnection, pottery leading truck heater (40) stops heating, when temperature drops to normal value, bimetal leaf (50) resets, make moving contact (63) make temperature switch circuit conducting with fixed contact (71) closure, and disconnect ceramic leading truck heater circuit.
2. the spring-piece type power-off restoration temperature detect switch (TDS) of controlling two kinds of circuit as claimed in claim 1, it is characterized in that, described spring plate (60) comprises the shell fragment main body (61) of U-shaped and the contact flat spring (62) being extended to form to opposite side by the bending part of shell fragment main body (61), one end of shell fragment main body (61) and metal shell (10) riveted joint are fixing, its free end is provided with moving contact (63), and the free end of contact flat spring (62) contacts with the electrode (43) of ceramic leading truck heater.
3. the spring-piece type power-off restoration temperature detect switch (TDS) of controlling two kinds of circuit as claimed in claim 1, it is characterized in that, one end of described static contact (70) is provided with fixed contact (71), its other end forms bending, and the end of this bending one end contacts with the electrode (43) of ceramic leading truck heater.
4. the spring-piece type power-off restoration temperature detect switch (TDS) of controlling two kinds of circuit as claimed in claim 1, it is characterized in that, described metal shell (10) is hollow column, its opening end end is provided with outwardly convex edge (11), metal shell bottom be provided with two be symmetric for installing the groove (12) of binding post.
5. the spring-piece type power-off restoration temperature detect switch (TDS) of controlling two kinds of circuit as claimed in claim 4, it is characterized in that, be fixed with two binding posts (20) that can connect two kinds of circuit in metal shell (10) bottom, two binding posts (20) are symmetricly set in two grooves (12) of metal shell bottom, one end of two binding posts (20) and metal shell (10) riveted joint are fixing, and the other end extends to outside metal shell.
6. the spring-piece type power-off restoration temperature detect switch (TDS) of controlling two kinds of circuit as claimed in claim 1, it is characterized in that, described ceramic leading truck heater (40) comprises ceramic leading truck (41), be located at heating film (42) and the electrode (43) being connected with heating film on ceramic leading truck, described ceramic leading truck (41) is circular plate body, its side relative with metal end (30) is provided with the concave surface (411) of accommodating described bimetal leaf, the edge of pottery leading truck (41) is provided with the L shaped step of the ring-type involutory with metal shell (412).
CN201410398239.9A 2014-08-13 2014-08-13 It can control the spring-piece type power-off restoration temperature detect switch (TDS) of two kinds of circuits Active CN104217897B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN110400721A (en) * 2019-07-01 2019-11-01 舟山市海大科学技术研究院有限责任公司 A kind of hydraulic pressure switch
CN111095466A (en) * 2017-09-14 2020-05-01 肖特(日本)株式会社 Thermal sensitive granular temperature fuse

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US20060082432A1 (en) * 2004-06-10 2006-04-20 Toshiharu Hayashi Manual-reset thermostat
CN202917391U (en) * 2011-11-14 2013-05-01 东莞市凯一电子科技有限公司 Temperature protection device
CN202434422U (en) * 2012-01-04 2012-09-12 东莞市凯恩电子科技有限公司 Jump-type temperature protector
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CN203179792U (en) * 2013-01-23 2013-09-04 东莞森萨特电子技术有限公司 Automatic reset type bimetallic sheet temperature controller with PTC power off
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN111095466A (en) * 2017-09-14 2020-05-01 肖特(日本)株式会社 Thermal sensitive granular temperature fuse
CN110400721A (en) * 2019-07-01 2019-11-01 舟山市海大科学技术研究院有限责任公司 A kind of hydraulic pressure switch

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