CN203839282U - Two output type manual power interruption reset temperature controlled switch - Google Patents
Two output type manual power interruption reset temperature controlled switch Download PDFInfo
- Publication number
- CN203839282U CN203839282U CN201420170513.2U CN201420170513U CN203839282U CN 203839282 U CN203839282 U CN 203839282U CN 201420170513 U CN201420170513 U CN 201420170513U CN 203839282 U CN203839282 U CN 203839282U
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- insulator
- lead
- out terminal
- fixed contact
- tds
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Abstract
The utility model discloses a two output type manual power interruption reset temperature controlled switch which is provided with a bimetallic strip. The free end of the bimetallic strip is provided with a push rod which is vertical to the bimetallic strip. The other end of the push rod is connected with a first elastic sheet. Two side surfaces of the first elastic sheet which are opposite to the free end are provided with a movable contact. A first fixed contact corresponding to the movable contact is arranged on one end of a first output terminal. A second fixed contact corresponding to the movable contact is arranged on one end of a second output terminal. The other ends of the first output terminal and the second output terminal are output ends for connecting a first load circuit and a second load circuit separately. The output end of the first output terminal is provided with a PTC heating element. The PTC heating element is in electrical connection with the first elastic sheet through a second elastic sheet. According to the utility model, by arranging the PTC heating element, after the load circuits are disconnected due to overtemperature and overload, the load circuit only can be reset through the manual method, so the temperature controlled switch two output current working reliability and electricity load safety can be ensured.
Description
[technical field]
The utility model relates to temperature detect switch (TDS), particularly relates to a kind of manual power-off restoration temperature detect switch (TDS) of two-way output.
[background technology]
Temperature detect switch (TDS) is widely used in various electronic equipments, for the temperature of electronic equipment is controlled in prescribed limit.When the temperature of electronic equipment reaches design temperature, the closing of contact of temperature detect switch (TDS) or disconnection and realize the break-make of circuit, thus realize the normal work of temperature protection and electronic equipment.Disinfection cabinet for example, existing disinfection cabinet is all generally to use the thermostat of relay and single channel output as circuit controling switch, by the closed and disconnected of relay, realize the switching of circuit function, its typical circuit structure is as shown in Figure 1: the input of relay K J1 is connected with power supply by time timer S1, one of them lead-out terminal of relay K J1 and the first load circuit 20, as the heating wire being connected in parallel is connected with the sterilisation circuit that blower fan forms; Another lead-out terminal of relay K J1 and the second load circuit 30, insulation or cooling circuit connect, as connected electric hot tray.Stop heating when making the first load circuit 20 heating disinfections to uniform temperature, on the second load circuit 30, be serially connected with the thermostat S2 of a single channel output.Under normal operation, thermostat S2 disconnects, and relay K J1 connects the first load circuit, and heating wire and blower fan are normally worked, and electric hot tray is not worked.When electric-heating-wire-heating is during to design temperature, thermostat S2 is closed, and relay K J1 connects No. second load circuit 30, and electric hot tray is started working, and heating wire and blower fan quit work.After electric hot tray work certain hour, can cut off whole circuit power by time timer S1, to prevent that thermostat S2 is malfunctioning or to automatically reset and again make the first load circuit 20 connect.Existing sort circuit structure, its synchronization only needs a wherein road operating circuit normally to work, and when temperature reaches design temperature, circuit need remain under the state of the second load circuit 30, if utilize relay K J1 to control, it not only needs setup times timer S1, also needs thermostat S2 is set, thereby makes wiring that comparatively trouble is installed.In addition,, after ambient temperature reduces, existing sort circuit structure can make thermostat S2, relay K J1 automatically reset to reset condition, is communicated with the first load circuit, thereby cannot meets user demand.
[summary of the invention]
The utility model is intended to address the above problem, and a kind of two-way output of having is provided, and thermostat can not automatically reset repeatedly, thereby can keep stablize the manual power-off restoration temperature detect switch (TDS) that serviceability and the simple two-way of easy-to-connect are exported.
For achieving the above object, the utility model provides a kind of manual power-off restoration temperature detect switch (TDS) of two-way output, it is characterized in that, this temperature detect switch (TDS) is provided with bimetal leaf, free end at bimetal leaf is provided with perpendicular push rod, the other end at described push rod is connected with the first shell fragment, in the both side surface relative with free end of described the first shell fragment, be provided with moving contact, first fixed contact corresponding with described moving contact is located at the end, one end of the first lead-out terminal, second fixed contact corresponding with described moving contact is located at the end, one end of the second lead-out terminal, the other end of described the first lead-out terminal and the second lead-out terminal is output, it is respectively used to connect the first load circuit and the second load circuit, on the output of described the first lead-out terminal, be provided with PTC heater, this PTC heater is electrically connected to described the first shell fragment through the second shell fragment,
When the working temperature of load is during in normal range (NR), described moving contact is connected and the first load circuit is normally worked with the first fixed contact contact, and now PTC heater is not worked; When the working temperature that load detected when bimetal leaf reaches set point, bimetal leaf promotes described moving contact and contacts and the second load circuit is normally worked with the second fixed contact, simultaneously PTC heater and the first load circuit conducting and persistent fever, because making described moving contact, its high resistance contacts with the second fixed contact always, while only having hand off power circuit, described bimetal leaf resets and moving contact is contacted and conducting with the first fixed contact.
Described the first lead-out terminal and the second lead-out terminal are sheet metal or metallic plate, between the first lead-out terminal and the second lead-out terminal, be provided with the first insulator that makes it electricity isolation, described the first lead-out terminal is located at respectively in the both side surface that the first insulator is relative with the second lead-out terminal.
One end of described the second lead-out terminal extends to the outside of the first insulator, and this end is provided with described the second fixed contact towards a side surface of the first lead-out terminal; The two ends of described the first lead-out terminal extend to respectively the outside of the first insulator, and its end surfaces relative with described the second fixed contact is provided with described the first fixed contact, and its other end is fixedly connected with described PTC heater.
Between described the first lead-out terminal and bimetal leaf, be provided with the second insulator, one end of described bimetal leaf and the second insulator are affixed, the free end of its other end for extending to the one end that is provided with the first fixed contact and the second fixed contact, is provided with vertical with it push rod in this free end end.
Described PTC heater is connected with the second shell fragment by buckle, and the other end of described the second shell fragment is electrically connected to described the first shell fragment.
Between described the second lead-out terminal and described buckle, be provided with the 3rd insulator, the outer surface at described PTC heater is withheld in one end of described buckle, and the other end of this buckle is placed on the 3rd insulator and is connected with the second shell fragment.
Described buckle is one-body molded by the first connecting portion, second connecting portion vertical with the first connecting portion, three connecting portion vertical with the second connecting portion, described the first connecting portion is withheld the outer surface with described PTC heater, and described the 3rd connecting portion is placed in the outer surface of described the 3rd insulator.
In the outside of described buckle, be provided with the 4th insulator, the link of described buckle and the second shell fragment is pressed together between described the 3rd insulator and the 4th insulator.
Described the first insulator, the second insulator and the 4th insulator are insulating ceramic film, and described the 3rd insulator is mica sheet, and described push rod is porcelain tube.
Useful contribution of the present utility model is, it efficiently solves the problems referred to above.The utility model makes load circuit because of after overtemperature overload disconnects by PTC heater is set, and only has and just can make manually load circuit reset, thereby guaranteed the functional reliability of temperature detect switch (TDS) two-way output current and with the fail safe of electric loading.Than prior art, the utility model just can realize by a temperature detect switch (TDS) function that relay, thermostat and time set timer could be realized together time, therefore can reduce components and parts cost, and simplify circuit wiring difficulty, reduces the fault point.The features such as the utility model has also overcome in prior art likely automatically reset potential safety hazard repeatedly when fault is not eliminated of thermostat, and the utility model also has simple in structure, easy to install, reliable operation simultaneously, cost-saving.
[accompanying drawing explanation]
Fig. 1 is the circuit structure diagram that existing disinfection cabinet is controlled by relay.
Fig. 2 is temperature switch circuit schematic diagram of the present utility model.
Fig. 3 is structural representation of the present utility model.
[embodiment]
The following example is to further explanation of the present utility model and supplements, the utility model is not constituted any limitation.
As shown in Figure 2 and Figure 3, the manual power-off restoration temperature detect switch (TDS) of two-way output of the present utility model has two-stage output, can connect two-way operating circuit, realizing the temperature of two-way operating circuit controls, it can be applicable to the application places of multiple two-stage output, and it has the simple feature of wiring, and has the function of hand-reset, thereby make performance more stable, use safer convenience.
The manual power-off restoration temperature detect switch (TDS) of two-way output of the present utility model comprises bimetal leaf 11, the first shell fragment 13, the second shell fragment 17, the first lead-out terminal 14, the second lead-out terminal 15 and PTC heater 16.
Described the first lead-out terminal 14 is for connecting the first load circuit 20, and described the second lead-out terminal 15 is for connecting the second load circuit 30.Described the first lead-out terminal 14 and the second lead-out terminal 15 are sheet metal or sheet metal.Take direction shown in Fig. 3 as example, and described the second lead-out terminal 15 is located at the top of described the first lead-out terminal 14, between the first lead-out terminal 14 and the second lead-out terminal 15, is provided with the first insulator 181.This first insulator 181 is insulating ceramic film, and its shape can arrange as required.The both side surface up and down of described the first lead-out terminal 14 and the second lead-out terminal 15 and this first insulator 181 affixed by known modes such as riveted joint, welding.For ease of wiring, connect, one end of described the second lead-out terminal 15 extends to the outside of the first insulator 181, and the downside surface of this end is provided with the second fixed contact 151.The two ends of described the first lead-out terminal 14 extend to respectively the outside of the first insulator 181, and the uper side surface of one end that it is corresponding with described the second fixed contact 151 is provided with the first fixed contact 141, and the uper side surface of its other end is fixedly connected with PTC heater 16.
As shown in Figure 3, at the middle part downside surface of described the first lead-out terminal 14, be provided with the second insulator 182, this second insulator 182 is insulating ceramic film, and its shape can arrange as required.Downside surface at this second insulator 182 is connected with described bimetal leaf 11.Described bimetal leaf 11 can be selected known bimetal leaf 11, and the downside surface of described the second insulator 182 can be fixed in its one end by known mode, and its other end extends horizontally to the outside of the second insulator 182 and forms free end.The fixed contact of the free end of this bimetal leaf 11 and the first lead-out terminal 14 and the second lead-out terminal 15 is positioned at the same side of the second insulator 182, and the free end of this bimetal leaf 11 is positioned at the outside of fixed contact.Free end at this bimetal leaf 11 is fixed with vertical push rod 12, for connecting the first shell fragment 13.In the present embodiment, described push rod 12 is porcelain tube.
Described the first shell fragment 13 is sheet metal, and the top of described push rod 12 is fixed in its one end, and its other end is free end, and this free end extends to the space between the first fixed contact 141 and the second fixed contact 151.Free-ended upper and lower both side surface at the first shell fragment 13 is equipped with moving contact 131, by moving up and down of push rod 12, just can make this moving contact 131 connect from different fixed contact contacts respectively, thus the different operating circuit of conducting.
For realizing power-off restoration function, described PTC heater 16 is connected with described the first shell fragment 13 by the second shell fragment 17.Specifically, at the uper side surface of described the second lead-out terminal 15, be provided with the 3rd insulator 183, described PTC heater 16 is connected with the second shell fragment 17 by buckle 19, and the other end of described the second shell fragment 17 is electrically connected to described the first shell fragment 13.The first connecting portion 191, the second connecting portion 192 and the 3rd connecting portion 193 that described buckle 19 is connected by one form, and wherein the second connecting portion 192 is vertical with the first connecting portion 191 and the 3rd connecting portion 193 respectively.The first connecting portion 191 of described buckle 19 is withheld the upper surface with described PTC heater 16 by known mode, as being fixed by corresponding connector.Between the 3rd connecting portion 193 of described buckle 19 and the second lead-out terminal 15, be provided with the 3rd insulator 183, the 3rd connecting portion 193 of described buckle 19 is placed in the upper surface of the 3rd insulator 183, and is connected with described the second shell fragment 17.Described the 3rd insulator 183 is mica sheet, and described the second shell fragment 17 is sheet metal.In addition, above described the 3rd connecting portion 193, be also provided with the 4th insulator 184, between the link pressing of described buckle 19 and the second shell fragment 17 and described the 3rd insulator 183 and the 4th insulator 184.In the present embodiment, described the 4th insulator 184 is insulating ceramic film.
By this, described bimetal leaf 11, PTC heater 16, the first shell fragment 13, the second shell fragment 17, the first lead-out terminal 14, the second lead-out terminal 15, the first insulator 181, the second insulator 182, the 3rd insulator 183 and the 4th insulator 184 have just formed the manual power-off restoration temperature detect switch (TDS) of two-way output of the present utility model by encapsulation.
Fig. 2 shows the utility model for the example of disinfection cabinet.The first shell fragment 13 is connected with power supply, and the first lead-out terminal 14 is connected with the first load circuit 20, the sterilisation circuit being comprised of heating wire in parallel and blower fan.The second lead-out terminal 15 is connected with the second load circuit 30, as the insulation at electric hot tray place in Fig. 2 or cooling circuit connection.Under normal condition, described moving contact 131 contacts and conducting the first load circuit 20 with described the first fixed contact 141, now PTC heater 16 short circuits, and the end of the e in Fig. 2 is communicated with c end, and heating wire and blower fan are normally worked, and electric hot tray place circuit disconnects.When heating wire heating power is during to design temperature, described bimetal leaf 11 is bent upwards and makes on push rod 12 to move, thereby moving contact 131 is connected with described the second fixed contact 151 contacts, conducting the second load circuit 30, be that e in Fig. 2 end is held and is communicated with d, electric hot tray is normally worked, and heating wire is connected in series with PTC heater 16 with after fan parallel-connection.Due to the resistance of PTC heater 16 resistance much larger than heating wire, so the electric current of flowing through on heating wire and blower fan is minimum, can be considered and does not work, and PTC heater 16 because of electricly produce a large amount of heats.The heat that PTC heater 16 produces makes the bimetal leaf 11 crooked state that always keeps up, and makes moving contact 131 keep contacting and being connected with the second fixed contact 151 always, and can not be reset to the first fixed contact 141, is not connected.Now, only have hand off power supply just can make PTC heater 16 because of power down stop heating, when it is cooled to uniform temperature because of power down, described bimetal leaf 11 just can reset, and moving contact 131 and the contact of the first fixed contact 141 are connected and realize the reset of whole circuit.If people is for cutting off the electricity supply, just described PTC heater 16 constantly generates heat, and make circuit remain on electric hot tray work, the idle state of heating wire and blower fan.Therefore, by temperature detect switch (TDS) 10 of the present utility model, just can realize the function of time timer S1 of the prior art, relay K J1 and thermostat S2, by a device, replace three devices, thereby can make wiring more simple and convenient, and can reduce the cost of product.In addition, when temperature detect switch (TDS) 10 of the present utility model only has manual power-off, just can reset, so stability is higher, more can meets the functional requirement of product.
Although the utility model is disclosed by above embodiment, but scope of the present utility model is not limited to this, do not departing under the condition of the utility model design, the similar or equivalent element that above each member can be understood with affiliated technical field personnel is replaced.
Claims (9)
1. the manual power-off restoration temperature detect switch (TDS) of two-way output, it is characterized in that, this temperature detect switch (TDS) (10) is provided with bimetal leaf (11), free end at bimetal leaf (11) is provided with perpendicular push rod (12), the other end at described push rod (12) is connected with the first shell fragment (13), in the both side surface relative with free end of described the first shell fragment (13), be provided with moving contact (131), first fixed contact (141) corresponding with described moving contact (131) is located at the end, one end of the first lead-out terminal (14), second fixed contact (151) corresponding with described moving contact (131) is located at the end, one end of the second lead-out terminal (15), described the first lead-out terminal (14) is output with the other end of the second lead-out terminal (15), it is respectively used to connect the first load circuit (20) and the second load circuit (30), on the output of described the first lead-out terminal (14), be provided with PTC heater (16), this PTC heater (16) is electrically connected to described the first shell fragment (13) through the second shell fragment (17),
When the working temperature of load is during in normal range (NR), described moving contact (131) is connected and the first load circuit (20) is normally worked with the first fixed contact (141) contact, and now PTC heater (16) is not worked, when the working temperature that load detected when bimetal leaf (11) reaches set point, bimetal leaf (11) promotes described moving contact (131) and contacts and the second load circuit (30) is normally worked with the second fixed contact (151), simultaneously PTC heater (16) is with (20) conducting of the first load circuit and persistent fever, because making described moving contact (131), its high resistance contacts with the second fixed contact (151) always, while only having hand off power circuit, described bimetal leaf (11) resets and moving contact (131) is contacted and conducting with the first fixed contact (141).
2. the manual power-off restoration temperature detect switch (TDS) that two-way as claimed in claim 1 is exported, it is characterized in that, described the first lead-out terminal (14) is sheet metal or metallic plate with the second lead-out terminal (15), between the first lead-out terminal (14) and the second lead-out terminal (15), be provided with the first insulator (181) that makes it electricity isolation, described the first lead-out terminal (14) is located at respectively in the both side surface that the first insulator (181) is relative with the second lead-out terminal (15).
3. the manual power-off restoration temperature detect switch (TDS) that two-way as claimed in claim 2 is exported, it is characterized in that, one end of described the second lead-out terminal (15) extends to the outside of the first insulator (181), and this end is provided with described the second fixed contact (151) towards a side surface of the first lead-out terminal (14); The two ends of described the first lead-out terminal (14) extend to respectively the outside of the first insulator (181), its end surfaces relative with described the second fixed contact (151) is provided with described the first fixed contact (141), and its other end is fixedly connected with described PTC heater (16).
4. the manual power-off restoration temperature detect switch (TDS) that two-way as claimed in claim 3 is exported, it is characterized in that, between described the first lead-out terminal (14) and bimetal leaf (11), be provided with the second insulator (182), one end of described bimetal leaf (11) and the second insulator (182) are affixed, the free end of its other end for extending to the one end that is provided with the first fixed contact (141) and the second fixed contact (151), is provided with vertical with it push rod (12) in this free end end.
5. the manual power-off restoration temperature detect switch (TDS) that two-way as claimed in claim 4 is exported, it is characterized in that, described PTC heater (16) is connected with the second shell fragment (17) by buckle (19), and the other end of described the second shell fragment (17) is electrically connected to described the first shell fragment (13).
6. the manual power-off restoration temperature detect switch (TDS) that two-way as claimed in claim 5 is exported, it is characterized in that, between described the second lead-out terminal (15) and described buckle (19), be provided with the 3rd insulator (183), the outer surface at described PTC heater (16) is withheld in one end of described buckle (19), and the other end of this buckle (19) is placed in the 3rd insulator (183) and is above connected with the second shell fragment (17).
7. the manual power-off restoration temperature detect switch (TDS) that two-way as claimed in claim 6 is exported, it is characterized in that, described buckle (19) is one-body molded by the first connecting portion (191), second connecting portion (192) vertical with the first connecting portion (191), three connecting portion (193) vertical with the second connecting portion (192), described the first connecting portion (191) is withheld the outer surface with described PTC heater (16), and described the 3rd connecting portion (193) is placed in the outer surface of described the 3rd insulator (183).
8. the manual power-off restoration temperature detect switch (TDS) that two-way as claimed in claim 7 is exported, it is characterized in that, in the outside of described buckle (19), be provided with the 4th insulator (184), the link of described buckle (19) and the second shell fragment (17) is pressed together between described the 3rd insulator (183) and the 4th insulator (184).
9. the manual power-off restoration temperature detect switch (TDS) that two-way as claimed in claim 8 is exported, it is characterized in that, described the first insulator (181), the second insulator (182) and the 4th insulator (184) are insulating ceramic film, described the 3rd insulator (183) is mica sheet, and described push rod (12) is porcelain tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420170513.2U CN203839282U (en) | 2013-12-24 | 2014-04-09 | Two output type manual power interruption reset temperature controlled switch |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860935 | 2013-12-24 | ||
| CN201320860935.8 | 2013-12-24 | ||
| CN201420170513.2U CN203839282U (en) | 2013-12-24 | 2014-04-09 | Two output type manual power interruption reset temperature controlled switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203839282U true CN203839282U (en) | 2014-09-17 |
Family
ID=51517091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420170513.2U Expired - Fee Related CN203839282U (en) | 2013-12-24 | 2014-04-09 | Two output type manual power interruption reset temperature controlled switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203839282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985598A (en) * | 2013-12-24 | 2014-08-13 | 东莞市凯恩电子科技有限公司 | Two-path output manual outage reset temperature controlled switch |
| CN109727811A (en) * | 2019-03-01 | 2019-05-07 | 中山市勤峰电器有限公司秋浦分公司 | A kind of hand-reset temperature limiter and the temperature adjustment stick for using it |
-
2014
- 2014-04-09 CN CN201420170513.2U patent/CN203839282U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985598A (en) * | 2013-12-24 | 2014-08-13 | 东莞市凯恩电子科技有限公司 | Two-path output manual outage reset temperature controlled switch |
| CN109727811A (en) * | 2019-03-01 | 2019-05-07 | 中山市勤峰电器有限公司秋浦分公司 | A kind of hand-reset temperature limiter and the temperature adjustment stick for using it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20160409 |