CN201039935Y - Dual light indicating circuit for heat preservation function - Google Patents
Dual light indicating circuit for heat preservation function Download PDFInfo
- Publication number
- CN201039935Y CN201039935Y CNU2007200498506U CN200720049850U CN201039935Y CN 201039935 Y CN201039935 Y CN 201039935Y CN U2007200498506 U CNU2007200498506 U CN U2007200498506U CN 200720049850 U CN200720049850 U CN 200720049850U CN 201039935 Y CN201039935 Y CN 201039935Y
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- CN
- China
- Prior art keywords
- heater
- tds
- indicator lamp
- temperature
- switch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses a bi-light indicating circuit with heating function which comprises a power switch, a heater connected between the firing line and the earth line and a temperature controlled switch connected between the heater and the firing line. The two ends of the heater are in parallel connection with an indicator light branch with the impedance value 40 times more than or equal to the heater impedance value. The red indicating light branch is formed in series by the impedance and an indicator light. The two ends of the temperature controlled switch are in parallel connection with the indicator light branch with the impedance value 40 times more than or equal to the electrical heating impedance value and the indicator light branch is formed in series by the impedance and an indicator light. An option switch is arranged between the temperature controlled switch and the heater. One terminal of the option switch is directly communicated with the heater and the other terminal is connected with a heating temperature limiter then communicated with the heater. The utility model has simple line, low cost, indication of different state of the heater easily and clearly as well as having heating function.
Description
Technical field
The utility model relates to a kind of two lamp indicating circuits that are used for firing equipment, particularly a kind of two lamp indicating circuits with heat insulation function.
Technical background
Hot-water bottle, soy bean milk making machine, coffee pot, electric cooker etc. are used to add the domestic electric heating equipment of hot water and food, water that it heats or food can't be eaten sometimes at once, perhaps eaten at once, water that these heat and food, after often placing a period of time, can turn cold with firing equipment, and should not directly eat.For making these foods after heating, can remain suitable temperature, to take at any time for the user, these heating equipments need have heat insulation function.Common heating equipment often needs to use circuit board or computer plate to realize preservation and controlling in order to realize heat insulation function, and its circuit structure complexity, cost are higher.
200520062190.6 number Chinese patent discloses a kind of pair of lamp indicating circuit, it includes power switch, is connected in the heater between live wire and the ground wire, is connected in the temperature detect switch (TDS) between heater and the live wire; The two ends of its heater are parallel with the red led branch road of resistance value more than or equal to 40 times heater resistance value, this red led props up the route impedance and a red led is in series, the temperature detect switch (TDS) two ends are parallel with the green indicating lamp branch road of a resistance value more than or equal to 40 times of electrical heating resistance values, and this green indicating lamp props up the route impedance and a green indicating lamp is in series.This two lamp indicating circuits that are used for firing equipment, its circuit letter, cost are low, and indicating operating status legibly, have the excellent popularization prospect; Yet it does not have heat insulation function, can not the food in the heating equipment that use it be incubated.
If, described pair of lamp indicating circuit of above-mentioned patent improved, under the situation of not using circuit board, make it have heat insulation function, it will better be applicable to electric heating equipment so, can have better market prospects.
The utility model content
It is a kind of simple in structure and have two lamp indicating circuits of heat insulation function that the purpose of this utility model is to provide.Two lamp indicating circuits of heat insulation function have power switch, are connected in the heater between live wire and the ground wire, are connected in the temperature detect switch (TDS) between heater and the live wire; The two ends of its heater are parallel with the indicator lamp branch road of resistance value more than or equal to 40 times heater resistance value, this indicator lamp props up the route impedance and an indicator lamp is in series, the temperature detect switch (TDS) two ends are parallel with the indicator lamp branch road of a resistance value more than or equal to 40 times of electrical heating resistance values, this indicator lamp props up the route impedance and an indicator lamp is in series, between its temperature detect switch (TDS) and the heater selector switch is installed, a terminal of selector switch directly is communicated with heater, and another terminal is communicated with heater after connecting the insulation temperature limiter again.
Stir selector switch, when temperature detect switch (TDS) directly was communicated with heater, its circuit and No. 200520062190.6 Chinese patents were identical, have its repertoire.Can indicate with different indicator lamps when quitting work in heater work.
Stir selector switch, when temperature detect switch (TDS) is communicated with heater behind the temperature limiter by being incubated again, in parallel with the green indicating lamp branch road again after temperature detect switch (TDS) and the series connection of insulation temperature limiter.At this moment, when temperature was higher than the design temperature that is incubated temperature limiter, insulation temperature limiter meeting automatic disconnection quit work heater; And when temperature was lower than the design temperature of insulation temperature limiter, the insulation temperature limiter again can auto-closing, and heater is task again, thereby temperature is raise once more, and it is by the switching of warmer, the work of control heater, thus realize heat insulation function.
Therefore, two lamp indicating circuits of heat insulation function described in the utility model, circuit is simple, the low different conditions that indicates heater that can either be simple and clear of cost, has heat insulation function again.
Description of drawings
Fig. 1 is a kind of schematic diagram of two lamp indicating circuits of heat insulation function;
Fig. 2 is a kind of schematic diagram of two lamp indicating circuits of heat insulation function;
Fig. 3 is a kind of schematic diagram of two lamp indicating circuits of heat insulation function;
Fig. 4 is a kind of schematic diagram of two lamp indicating circuits of heat insulation function.
The specific embodiment
When selecting switch 4 and terminal x closure, when temperature detect switch (TDS) 2 was directly linked to each other with heater 3, heater 3 used in the time of can be by normal heating.When selecting switch 4 and terminal y closed, with heater 3 be connected behind the temperature detect switch (TDS) 2 series connection insulation temperature limiters 9 this moment again, when temperature is higher than the design temperature that is incubated temperature limiter 9, the 9 meeting automatic disconnections of insulation temperature limiter, heater 3 is quit work, and when temperature is lower than the design temperature of insulation temperature limiter 9, insulation temperature limiter 9 again can auto-closing, heater 3 is task again, thereby make temperature in inferior rising, it is by the switching of insulation temperature limiter 9, the work of control heater 3, make temperature constant, realize heat insulation function.
The power end of circuit can connect high-temperature protector 7, and when temperature detect switch (TDS) 2 damaged, high-temperature protector can tripping when heater 3 is overheated, thereby when temperature detect switch (TDS) 2 damages, circuit is shielded.
Can connect the warning circuit that has sound-producing device in the circuit, temperature required when being heated to, temperature detect switch (TDS) disconnects, and when heater quit work, warning circuit was connected, its sound-producing device sounding alarm.It is by the sounding reminding user, and the user is easier in time to learn.The described warning circuit that has sound-producing device is a prior art, and it can be that temperature detect switch (TDS) disconnects the back and the thumper circuit 10 of conducting sounding, as Fig. 2; Also can be according to whether electric current being arranged and the integrated horn circuit 11 of sounding in the circuit, as Fig. 3.
Claims (5)
1. two lamp indicating circuits of heat insulation function are provided with power switch (1), are connected in the heater (3) between live wire (L) and the ground wire (N), are connected in the temperature detect switch (TDS) (2) between heater (3) and the live wire (L); The two ends of heater (3) are parallel with the indicator lamp branch road of resistance value more than or equal to 40 times heater resistance value, this indicator lamp props up route impedance (R1) and is in series with an indicator lamp (5), temperature detect switch (TDS) (2) two ends are parallel with the indicator lamp branch road of a resistance value more than or equal to 40 times of electrical heating resistance values, this indicator lamp props up route impedance (R2) and is in series with an indicator lamp (6), it is characterized in that: between temperature detect switch (TDS) (2) and the heater (3) selector switch (4) is installed, a terminal (x) of selector switch (4) directly is communicated with heater, and another terminal (y) is communicated with heater (3) after connecting insulation temperature limiter (9) again.
2. two lamp indicating circuits of heat insulation function according to claim 1, it is characterized in that: the resistance value of the indicator lamp branch road in parallel with heater (3) is 50 times of heater resistance value, is 50 times of heater resistance value with the resistance value of temperature detect switch (TDS) (2) indicator lamp branch road in parallel.
3. two lamp indicating circuits of heat insulation function according to claim 1 is characterized in that: be in series with a commutation diode (8) in the indicator lamp branch road in parallel with temperature detect switch (TDS) (2).
4. two lamp indicating circuits of heat insulation function according to claim 1, it is characterized in that: the power end of circuit is connected with high-temperature protector (7).
5. two lamp indicating circuits of heat insulation function according to claim 1, it is characterized in that: be connected with the warning circuit that has sound-producing device in the circuit, warning circuit is communicated with warning when temperature detect switch (TDS) disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200498506U CN201039935Y (en) | 2007-03-30 | 2007-03-30 | Dual light indicating circuit for heat preservation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200498506U CN201039935Y (en) | 2007-03-30 | 2007-03-30 | Dual light indicating circuit for heat preservation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201039935Y true CN201039935Y (en) | 2008-03-26 |
Family
ID=39251638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200498506U Expired - Fee Related CN201039935Y (en) | 2007-03-30 | 2007-03-30 | Dual light indicating circuit for heat preservation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201039935Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349507A (en) * | 2013-07-12 | 2013-10-16 | 陈奇奇 | Water dispenser with voice prompt |
-
2007
- 2007-03-30 CN CNU2007200498506U patent/CN201039935Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103349507A (en) * | 2013-07-12 | 2013-10-16 | 陈奇奇 | Water dispenser with voice prompt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20130330 |