CN204462905U - A kind of dual control circuit temperature - Google Patents
A kind of dual control circuit temperature Download PDFInfo
- Publication number
- CN204462905U CN204462905U CN201520049202.5U CN201520049202U CN204462905U CN 204462905 U CN204462905 U CN 204462905U CN 201520049202 U CN201520049202 U CN 201520049202U CN 204462905 U CN204462905 U CN 204462905U
- Authority
- CN
- China
- Prior art keywords
- unit
- line
- ntc
- resistance
- microprocessor
- Prior art date
- 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.)
- Active
Links
- 230000009977 dual effect Effects 0.000 title claims abstract description 27
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 230000006698 induction Effects 0.000 claims abstract description 24
- 238000005070 sampling Methods 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 27
- 239000010703 silicon Substances 0.000 claims description 27
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000011897 real-time detection Methods 0.000 abstract 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Control Of Resistance Heating (AREA)
Abstract
The utility model discloses a kind of dual control circuit temperature, comprise microprocessor, and the NTC voltage detection unit to be connected with microprocessor, 2nd NTC voltage detection unit, PTC load detecting unit, PTC voltage sampling unit, protection controllable silicon unit, work controllable silicon unit, indicator unit, push-button unit, resistance-capacitance depressurization unit, signal synchronization unit, first reference voltage unit, second reference voltage unit and reference resistance, wherein, described protection controllable silicon unit is connected with N line with the L line of ac power input end further, the L line of ac power input end is provided with fuse, dual control circuit temperature described in the utility model, multiple fault detect can be provided, the disconnection of real-time detection heater PTC line with heating function and the NTC line of induction, the faults such as short circuit, duplicate protection is provided, improve the safety in utilization of electric blanket, and whole circuit structure is succinct, easy to operate, cost is low.
Description
Technical field
The utility model relates to a kind of dual control circuit temperature, particularly relates to a kind of dual control circuit temperature for electric blanket.
Background technology
Traditional low-voltage electrical heating blanket, heating pad control circuit cardinal principle is the break-make of gauge tap, this temperature-control circuit principle is simple, but in fault detect, there is obvious deficiency, be mainly manifested in: 1, service time short (namely fever time is not grown), can not detect the very first time and cut off the electricity supply when breaking down and protect; 2, usually disposable dry cell power supply is used; can not charge; cause waste and contaminated environment; even if there is the electro-heat equipment using rechargeable battery; but easily affect battery because temperature after charging heating raises; or not enough to the protection of rechargeable battery, cause line fault, cause unnecessary property loss.
In view of this, the present inventor studies this, and develop a kind of dual control circuit temperature specially, this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of dual control circuit temperature, has the features such as various faults detects, reliability is high, easy to operate.
To achieve these goals, solution of the present utility model is:
A kind of dual control circuit temperature, comprises microprocessor, and the NTC voltage detection unit be connected with microprocessor, 2nd NTC voltage detection unit, PTC load detecting unit, PTC voltage sampling unit, protection controllable silicon unit, work controllable silicon unit, indicator unit, push-button unit, resistance-capacitance depressurization unit, signal synchronization unit, first reference voltage unit, second reference voltage unit and reference resistance, wherein, described protection controllable silicon unit is connected with N line with the L line of ac power input end further, and the L line of ac power input end is provided with fuse, described resistance-capacitance depressurization unit, signal synchronization unit, first reference voltage unit, second reference voltage unit is all connected with the L line of ac power input end, a described NTC voltage detection unit, 2nd NTC voltage detection unit is connected with the terminals of the heater NTC line of induction, the two ends of the PTC line with heating function of heater respectively with the L line of ac power input end, and PTC load detecting unit, work controllable silicon unit is connected.
As preferably, described microprocessor adopts model to be the microprocessor of HT66F018, performs relevant action after carrying out analyzing and processing according to the input signal of unit, and protection heater normally works.
As preferably, a described NTC voltage detection unit comprises interconnective electric capacity, resistance and diode, one NTC voltage detection unit one end is connected with microprocessor, the other end connects the terminals of the heater NTC line of induction, in like manner, described 2nd NTC voltage detection unit also comprises interconnective electric capacity, resistance and diode, 2nd NTC voltage detection unit one end is connected with microprocessor, the other end connects the terminals of the heater NTC line of induction, by a NTC voltage detection unit, 2nd NTC voltage detection unit detects the voltage at heater NTC line of induction two ends respectively, and detection signal is sent to microprocessor, and then detect the whether open circuit of the NTC line of induction.
As preferably, whether described PTC load detecting unit is included in the resistance between PTC line with heating function and microprocessor, disconnect for detecting PTC line with heating function, and the whether short circuit of PTC line with heating function and NTC line of induction terminals inside.
As preferably, described PTC voltage sampling unit comprises the resistance be connected between microprocessor and ac power input end N line, for realizing the voltage sample of PTC line with heating function, and then controls the temperature of heater.
As preferably, described work controllable silicon unit comprises work controllable silicon, and with work the controllable silicon resistance, the electric capacity that are connected, wherein said work controllable silicon is bidirectional triode thyristor, work controllable silicon unit is connected between microprocessor and PTC line with heating function, is come energising and the power-off of control PTC line with heating function by work silicon controlled conducting and cut-off.
As preferably; described protection controllable silicon unit comprises protection controllable silicon; and with protection the controllable silicon resistance, the electric capacity that are connected; described protection controllable silicon is connected with the fuse on ac power input end L line further; when heating wire burns out; the action of protection controllable silicon, blowout, makes heater power-off.
As preferably, described indicator unit comprises multiple LED light, and the resistance be connected with LED light, is used to indicate, the work in every state of dual control circuit temperature; Described push-button unit comprises button and resistance.
As preferably, resistance-capacitance depressurization unit comprises interconnective electric capacity, dropping resistor, diode, voltage stabilizing diode etc., resistance-capacitance depressurization unit is connected with ac power input end L line, for being the VCC voltage of 5 V by the step-down of high-voltage alternating electric rectification, is respectively microprocessor and unit is powered.
As preferably, described first reference voltage unit comprises diode, and the multiple resistance to be connected with diode, be mainly the first reference voltage that microprocessor provides 1.5V, in like manner, described second reference voltage unit also comprises diode, and the multiple resistance be connected with diode, according to different gear, for microprocessor provides the second reference voltage of different size.
As preferably, described signal synchronization unit comprises the resistance of two series connection mutually, and signal synchronization unit is connected between power input L line and microprocessor, provides reference signal for silicon control zero-cross triggers.
Above-mentioned dual control circuit temperature principle of work: enter mode of operation by button, corresponding pilot lamp is bright, heater starts heating, PTC line with heating function resistance slowly becomes large, detection signal is sent to microprocessor by PTC load detecting unit, the in-phase voltage of micro-reason device built-in voltage comparer slowly reduces, when the first voltage reference lower than the corresponding gear of end of oppisite phase time, micro-reason device control work controllable silicon cut-off, generally heat 2 sine waves more afterwards by a NTC voltage detection unit, 2nd NTC voltage detection unit detects NTC sense line voltage value, if (often heating stops 2 sine waves for 3 seconds to detect NTC voltage to be greater than corresponding gear PTC magnitude of voltage continuation heating, NTC load), if be less than setting value just enter temperature constant state.When heater temperature reaches NTC temperature control setting value because other reason or non-normal use raise, then microprocessor just controls the cut-off of work controllable silicon, stop 1 minute, heat again after 1 minute and detect NTC magnitude of voltage by a NTC voltage detection unit, the 2nd NTC voltage detection unit afterwards in 3 seconds, if be less than the second reference voltage, then the heating mode continuing to press PTC line with heating function runs.(because NTC temperature controlling point is on the high-grade temperature controlling point of PTC, only have when heater is folding or non-normal use time NTC pattern just run).
Adopt dual control circuit temperature described in the utility model, multiple fault detect can be provided, detect the fault such as disconnection, short circuit of heater PTC line with heating function and the NTC line of induction in real time, improve the safety in utilization of electric blanket, and whole circuit structure is succinct, easy to operate, cost is low.There is following several defencive function:
1, whenever (standby or duty) disconnects PTC line with heating function, and micro-reason device can be detected by PTC load detecting unit, corresponding failure lamp flicker (LED light) prompting simultaneously;
2, NTC line of induction terminals or internal break (standby or duty), microprocessor can be detected by line of induction both end voltage difference, simultaneously corresponding failure lamp flash for prompting;
3, PTC line with heating function and NTC line of induction terminals internal short-circuit, microprocessor can be detected by NTC load detecting, corresponding failure lamp flash for prompting;
4, folding defencive function: in use procedure heating pad fold the temperature of rear burst can be very high, PTC line with heating function, NTC layer burst resistance diminish, and total resistance also can diminish, and makes circuit be in constant temperature equally, can not burn out heater.
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the dual control circuit temperature module frame chart of the present embodiment;
Fig. 2 is the dual control circuit temperature schematic diagram of the present embodiment.
Embodiment
In the present embodiment, the heater 14 of described electric blanket comprises PTC line with heating function, NTC layer, be connected with NTC layer the NTC line of induction.As shown in Figure 1-2, a kind of dual control circuit temperature, comprises microprocessor 1, and the NTC voltage detection unit 2 be connected with microprocessor 1, 2nd NTC voltage detection unit 3, PTC load detecting unit 4, PTC voltage sampling unit 5, protection controllable silicon unit 6, work controllable silicon unit 7, indicator unit 8, push-button unit 9, resistance-capacitance depressurization unit 10, signal synchronization unit 11, first reference voltage unit 12, second reference voltage unit 13 and reference resistance R35, wherein, described protection controllable silicon unit 6 is connected with N line with the L line of 120V ac power input end further, and the L line of 120V ac power input end is provided with fuse F1, described resistance-capacitance depressurization unit 10, signal synchronization unit 11, first reference voltage unit 12, the L line of the equal ac power input end of the second reference voltage unit 13 is connected, a described NTC voltage detection unit 2, 2nd NTC voltage detection unit 2 is connected with the terminals of the NTC line of induction of heater 14, the two ends of heater 14PTC line with heating function respectively with the L line of ac power input end, and PTC load detecting unit 4, work controllable silicon unit 7 is connected.
Described microprocessor 1 adopts model to be the microprocessor of HT66F018, and microprocessor 1 performs relevant action after carrying out analyzing and processing according to the input signal of unit, and protection heater 14 normally works.
A described NTC voltage detection unit 2 comprises multiple interconnective electric capacity C4, resistance R24, R25, R26 and diode D4, D5, and NTC voltage detection unit 2 one end is connected with microprocessor 1, and the other end connects the terminals of the heater NTC line of induction; In like manner, described 2nd NTC voltage detection unit 3 also comprises multiple interconnective electric capacity C5, resistance R27, R28, R29 and diode D6, D7,2nd NTC voltage detection unit 3 one end is connected with microprocessor 1, the other end connects the terminals of the heater NTC line of induction, the voltage at heater NTC line of induction two ends is detected respectively by a NTC voltage detection unit 2, the 2nd NTC voltage detection unit 3, and detection signal is sent to microprocessor 1, and then detect the whether open circuit of the NTC line of induction.
Whether described PTC load detecting unit 4 is included in resistance R30, R31 between PTC line with heating function and microprocessor 1, disconnect for detecting PTC line with heating function, and the whether short circuit of PTC line with heating function and NTC line of induction terminals inside.
Described PTC voltage sampling unit 5 comprises resistance R35, R36 of being connected between microprocessor and ac power input end N line, for realizing the voltage sample of PTC line with heating function, and then controls the temperature of heater 14.
Described work controllable silicon unit 7 comprises work controllable silicon T1, and resistance R34, the R35 to be connected with work controllable silicon T1, electric capacity C6, wherein said work controllable silicon T1 is bidirectional triode thyristor, work controllable silicon unit 7 is connected between microprocessor 2 and PTC line with heating function, is come energising and the power-off of control PTC line with heating function by conducting and the cut-off of work controllable silicon T1.
Described protection controllable silicon unit 6 comprises protection controllable silicon T2; and to be connected with protection controllable silicon resistance R37, the R38 of T2, electric capacity C7; described protection controllable silicon T2 is connected with the fuse F1 on ac power input end L line further; when heating wire burns out; protection controllable silicon T2 action; blowout F1, makes heater 10 power-off.
Described indicator unit 8 comprises multiple LED light, and the resistance to be connected with LED light, be used to indicate, the work in every state of dual control circuit temperature, in the present embodiment, described LED light comprises light emitting diode L1, L2, L3, L4, and resistance R13, R14, R15, R16 of being connected with above-mentioned light emitting diode; Described push-button unit comprises button K1 and resistance R32.
Described resistance-capacitance depressurization unit 10 comprises interconnective electric capacity C1, C2, C3, dropping resistor R1, diode D1, voltage stabilizing diode ZD1, resistance-capacitance depressurization unit 10 is connected with ac power input end L line, for being the VCC voltage of 5 V by the step-down of high-voltage alternating electric rectification, be respectively microprocessor 1 and unit is powered.
Described first reference voltage unit 12 comprises diode D3, and multiple resistance R17, R18, the R19 to be connected with diode D3, be mainly the first reference voltage that microprocessor 1 provides 1.5V, in like manner, described second reference voltage unit 13 also comprises diode D2, and multiple resistance R2, R3, R4, R5, R6, R7, R8, R9, R10, the R11 to be connected with diode, according to different gear, for microprocessor 1 provides the second reference voltage of different size.
Described signal synchronization unit 11 comprises two resistance R20, R21 of mutually connecting, and signal synchronization unit is connected between power input L line and microprocessor 1, provides reference signal for silicon control zero-cross triggers.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.
Claims (10)
1. a dual control circuit temperature, is characterized in that: comprise microprocessor, and the NTC voltage detection unit be connected with microprocessor, 2nd NTC voltage detection unit, PTC load detecting unit, PTC voltage sampling unit, protection controllable silicon unit, work controllable silicon unit, indicator unit, push-button unit, resistance-capacitance depressurization unit, signal synchronization unit, first reference voltage unit, second reference voltage unit and reference resistance, wherein, described protection controllable silicon unit is connected with N line with the L line of ac power input end further, and the L line of ac power input end is provided with fuse, described resistance-capacitance depressurization unit, signal synchronization unit, first reference voltage unit, second reference voltage unit is all connected with the L line of ac power input end, a described NTC voltage detection unit, 2nd NTC voltage detection unit is connected with the terminals of the heater NTC line of induction, the two ends of heater PTC line with heating function respectively with the L line of ac power input end, and PTC load detecting unit, work controllable silicon unit is connected.
2. a kind of dual control circuit temperature as claimed in claim 1, is characterized in that: described microprocessor adopts model to be the microprocessor of HT66F018.
3. a kind of dual control circuit temperature as claimed in claim 1, it is characterized in that: a described NTC voltage detection unit comprises multiple interconnective resistance and diode, one NTC voltage detection unit one end is connected with microprocessor, and the other end connects the terminals of the heater NTC line of induction; Described 2nd NTC voltage detection unit also comprises multiple interconnective resistance and diode, 2nd NTC voltage detection unit one end is connected with microprocessor, the other end connects the terminals of the heater NTC line of induction, the voltage at heater NTC line of induction two ends is detected respectively by a NTC voltage detection unit, the 2nd NTC voltage detection unit, and detection signal is sent to microprocessor, and then detect the whether open circuit of the NTC line of induction.
4. a kind of dual control circuit temperature as claimed in claim 1, it is characterized in that: described PTC load detecting unit is included in the resistance between PTC line with heating function and microprocessor, whether disconnect for detecting PTC line with heating function, and the whether short circuit of PTC line with heating function and NTC line of induction terminals inside.
5. a kind of dual control circuit temperature as claimed in claim 1, is characterized in that: institute PTC voltage sampling unit comprises the resistance be connected between microprocessor and ac power input end N line, for realizing the voltage sample of PTC line with heating function.
6. a kind of dual control circuit temperature as claimed in claim 1, it is characterized in that: described work controllable silicon unit comprises work controllable silicon, and with work the controllable silicon resistance, the electric capacity that are connected, wherein said work controllable silicon is bidirectional triode thyristor, work controllable silicon unit is connected between microprocessor and PTC line with heating function, is come energising and the power-off of control PTC line with heating function by work silicon controlled conducting and cut-off; Described protection controllable silicon unit comprises protection controllable silicon, and the resistance, the electric capacity that are connected with protection controllable silicon, and described protection controllable silicon is connected with the fuse on ac power input end L line further.
7. a kind of dual control circuit temperature as claimed in claim 1, is characterized in that: described indicator unit comprises multiple LED light, and the resistance be connected with LED light, is used to indicate, the work in every state of dual control circuit temperature; Described push-button unit comprises button and resistance.
8. a kind of dual control circuit temperature as claimed in claim 1, it is characterized in that: resistance-capacitance depressurization unit comprises interconnective electric capacity, dropping resistor, diode, voltage stabilizing diode, resistance-capacitance depressurization unit is connected with ac power input end L line, for being the VCC voltage of 5 V by the step-down of high-voltage alternating electric rectification, be respectively microprocessor and unit is powered.
9. a kind of dual control circuit temperature as claimed in claim 1, it is characterized in that: described first reference voltage unit comprises diode, and the multiple resistance to be connected with diode, for microprocessor provides first reference voltage of 1.5V, in like manner, described second reference voltage unit also comprises diode, and the multiple resistance be connected with diode, according to different gear, for microprocessor provides the second reference voltage of different size.
10. a kind of dual control circuit temperature as claimed in claim 1, is characterized in that: described signal synchronization unit comprises two resistance of mutually connecting, and signal synchronization unit is connected between power input L line and microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520049202.5U CN204462905U (en) | 2015-01-23 | 2015-01-23 | A kind of dual control circuit temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520049202.5U CN204462905U (en) | 2015-01-23 | 2015-01-23 | A kind of dual control circuit temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204462905U true CN204462905U (en) | 2015-07-08 |
Family
ID=53669766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520049202.5U Active CN204462905U (en) | 2015-01-23 | 2015-01-23 | A kind of dual control circuit temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204462905U (en) |
-
2015
- 2015-01-23 CN CN201520049202.5U patent/CN204462905U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104360697A (en) | Power-temperature control and detection device for IGBT (insulated gate bipolar transistor) modules of three-phase inverter system | |
| CN202135341U (en) | Electrothermal controller safety circuit | |
| CN104022486A (en) | Domestic multifunctional electricity protector | |
| CN212256121U (en) | Temperature control protection device for PTC and NTC heating wire | |
| CN105490101A (en) | Protection plug with power-off tripping and overvoltage tripping functions | |
| CN210469748U (en) | Temperature control and protection device for PTC/NTC heating wire | |
| CN206100477U (en) | Switch snow melt temperature power safety control module | |
| CN204462905U (en) | A kind of dual control circuit temperature | |
| CN206135388U (en) | But automatic disconnection's energy -conserving circuit | |
| CN204441633U (en) | Possesses the protection plug of power-off tripping operation and superpressure trip avoidance function | |
| CN205690517U (en) | A kind of electric heater control circuit | |
| CN201374463Y (en) | Energy-saving socket | |
| CN201667458U (en) | Multi-functional power protection safety converter socket and corresponding plug thereof | |
| CN204349419U (en) | Power-off trip protection plug | |
| CN203968094U (en) | Energy-saving safe switch | |
| CN204465893U (en) | A kind of disconnection protection circuit | |
| CN203586388U (en) | Super-energy-saving safe intelligent heating controller | |
| CN203480335U (en) | PTC/NTC double-temperature-control control device | |
| CN207664598U (en) | Electric protection device of air conditioner controller and air conditioner | |
| CN203241841U (en) | Integrated-control flexible electric heating appliance | |
| CN201903131U (en) | Energy-saving multifunctional protector for air conditioner in machine room | |
| CN202373812U (en) | Energy-saving and consumption-reducing power socket | |
| CN104485641A (en) | Power failure self locking control circuit | |
| CN204131794U (en) | A kind of have general lighting and function of emergency illumination in the circuit for lamp control device of one | |
| CN205229863U (en) | Atmospheric control circuit based on protection of temperature humidity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: North Village Road 312055 Wang Tan Zhen Sha di Zhejiang province Shaoxing city Keqiao District Patentee after: ZHEJIANG LYVMENG HEALTH TECHNOLOGY CO.,LTD. Address before: North to the 312055 Zhejiang city of Shaoxing province Shaoxing county Wang Tan Zhen Sha Di Cun Zhen Zhong Lu Patentee before: ZHEJIANG LYUMENG LIGHT TEXTILE TECHNOLOGY CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 312000 room 0107, building 6, daqianmen community, Qianqing Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG LYVMENG HEALTH TECHNOLOGY CO.,LTD. Country or region after: China Address before: 312055 north of Middle Road, Shasha village, Wangtan Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG LYVMENG HEALTH TECHNOLOGY CO.,LTD. Country or region before: China |