CN108121381A - A kind of semiconductor chilling plate thermostatic control system for driving circuit of being spoilt based on H - Google Patents
A kind of semiconductor chilling plate thermostatic control system for driving circuit of being spoilt based on H Download PDFInfo
- Publication number
- CN108121381A CN108121381A CN201611065832.7A CN201611065832A CN108121381A CN 108121381 A CN108121381 A CN 108121381A CN 201611065832 A CN201611065832 A CN 201611065832A CN 108121381 A CN108121381 A CN 108121381A
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- China
- Prior art keywords
- temperature
- chilling plate
- semiconductor chilling
- spoilt
- control system
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1917—Control of temperature characterised by the use of electric means using digital means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
Abstract
A kind of semiconductor chilling plate thermostatic control system for driving circuit of being spoilt based on H, suitable for domain of control temperature.The system is using HT46R47 as acp chip, cooling module is heated using semiconductor chilling plate as core, using negative tempperature coefficient thermistor NTC as temperature acquisition element, by NTC, (negative tempperature coefficient thermistor carries out temperature acquisition, semiconductor chilling plate is controlled using H-bridge drive circuit, to achieve the purpose that make system to keep constant temperature.The system is safe to use, convenient, accurate, solves noise and life problems that traditional relay control is brought, can be used in the fields such as hydrotherapy instrument, medical transfusion heated at constant temperature, household electrical appliance, it is with a wide range of applications, with simple in structure, small volume, no refrigeration working medium, it is without friction, noise is small, long lifespan, easy to maintenance, start soon, control the advantages that flexible.
Description
Technical field
The present invention relates to a kind of semiconductor chilling plate thermostatic control system for driving circuit of being spoilt based on H, suitable for temperature control
Field processed.
Background technology
As the improvement of people's living standards, intelligentized liquid heating refrigeration class household electrical appliances are increasingly appearing in people
Daily life in, these products are heated mostly using heat-generating pipe or the quick resistance of FI Nas, only with heating function；Partly lead
Cold system is the new and high technology rapidly developed in recent years, and principle is exactly the altitude temperature difference effect of semi-conducting material.If not
Two kinds of semi-conducting material p-types, N-types of same polarity), galvanic couple pair is connected into, the transfer of energy just occurs when passing through DC current；Electricity
Stream just absorbs heat when flowing to corpse type element by N-type element, this end face is huyashi-chuuka (cold chinese-style noodles), when electric current flows to N-type element by p-type element
Just heat is released, this end face is hot face.If changing the polarity of direct current, same refrigerator can realize refrigeration and heating two
Kind function.
And can possess heating and refrigeration dual function using semiconductor chilling plate, but defect is traditional semiconductor refrigerating
The direction controlling of piece is completed mostly using relay, and relay belongs to mechanical switch, when frequent on or off not only
It can make a noise, but also its service life can be reduced.Therefore, it is necessary to explore a kind of efficient, noise elimination, the semiconductor system of safety
Cold control method.
The content of the invention
The present invention provides a kind of semiconductor chilling plate thermostatic control system for driving circuit of spoiling based on H, is made using HT46R47
For acp chip, cooling module is heated using semiconductor chilling plate as core, using negative tempperature coefficient thermistor NTC as
Temperature acquisition element, by NTC, (negative tempperature coefficient thermistor carries out temperature acquisition, using H-bridge drive circuit to semiconductor system
Cold is controlled, to achieve the purpose that make system to keep constant temperature.The system is safe to use, convenient, accurate, solve tradition after
The noise and life problems that electrical equipment control is brought can be used in the fields such as hydrotherapy instrument, medical transfusion heated at constant temperature, household electrical appliance,
It is with a wide range of applications.
The technical solution adopted in the present invention is：
The system is divided into MCU temperature displays, temperature control, temperature prompt, temperature acquisition and by parts such as key controls, uses
HT46R47 is heated cooling module using semiconductor chilling plate as core, uses negative temperature coefficient thermistor power as acp chip
NTC is hindered as temperature acquisition element.
In the overall system design, real time temperature adjusting is carried out by button, MCU is using Sheng group's monolithic semiconductor machine
HT46R47, operating voltage 2.2~5.5V, 2K program storage, 13 universaling I/O ports, wherein 4 AD mouthfuls available.Pass through two
Position LED subcodes pipe carries out temperature display, and buzzer sends alarm when set temperature is reached.Wherein, semiconductor refrigerating
Piece control section carries out voltage overturning using H bridges drive control circuit, so as to achieve the purpose that heat automatic control in refrigeration.
The H-bridge drive circuit is usually used in the direction controlling of direct current generator, and the system half-and-half leads H-bridge drive circuit introducing
Body cooling piece is controlled, when control signal PTC1 is high level, and PTC2 is low level, two 8550 triode Ql of left side arm
It is turned on Q2, since upper and lower two metal-oxide-semiconductors are respectively P-channel and N-channel, so any moment can only have 1 conducting, and this
When above P pipe, i.e. Q5 turn on；And on an other arm, two triodes Q3 and Q4 are not turned on, N-channel following at this time
Metal-oxide-semiconductor turns on, and 12V voltage differences are then formed at semiconductor chilling plate both ends, and cooling piece is begun to warm up (or refrigeration).Similarly, when
PTC1 is low level, and when PTC2 is high level, semiconductor chilling plate voltage is overturn at this time, originally heats or what is freezed starts on one side
Refrigeration or heating.
In the system software overall procedure, in holding state after system electrification, by system is carried out after power button first
Initialization, including being set to universaling I/O port, initial temperature acquisition and display etc., at this time shown temperature be negative temperature system
The initial temperature of number thermistor acquisition；When pressing upper and lower key and saying that trip temperature is adjusted, MCU can be than turning the temperature that be gathered of current NTC
Degree and user are automatically confirmed that by the temperature of key-press input and in the triggering of no button, and are automatically controlled according to comparative result
H-bridge drive circuit controls semiconductor chilling plate, to achieve the purpose that heating automatically or refrigeration.Heat or freeze
In the process, charactron real-time display is gathered by NTC and by MCU treated temperature value, records the situation of temperature change in real time.When
When temperature reaches design temperature, MCU stops the heating of semiconductor chilling plate by H-bridge drive circuit or refrigeration acts；At this point,
NTC is still in real-time collecting temperature, and when temperature is influenced be subject to external environment and reduces or improve, MCU drivings H-bridge circuit makes partly to lead
Body cooling piece acts, so that system maintains design temperature.
Using negative tempperature coefficient thermistor as temperature sensor, thermistor is mainly characterized by for temperature acquisition part
High to temperature control, thermal inertia is small, long lifespan, small, simple in structure, a variety of contour structures can be used, simultaneously
The system is safe to use, convenient, accurate, solves noise and life problems that traditional relay control is brought.
It is ON/OFF on/off key, UP (upward) respectively using 3 buttons using AD mouthfuls of progress key scan inputs
Key, DOWN (downward) key, can also integrate more buttons and be controlled certainly.
The beneficial effects of the invention are as follows：Control system circuit is by controlling the voltage direction of semiconductor chilling plate that can reach
To heating or the purpose of refrigeration, there is simple in structure, small volume, no refrigeration working medium, without friction, noise is small, long lifespan, repair
It is convenient, start soon, control the advantages that flexible, while the system is safe to use, convenient, accurate, solves traditional relay control
The noise and life problems brought.
Description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the overall system design block diagram of the present invention.
Fig. 2 is the H-bridge drive circuit of the present invention.
Fig. 3 is the program design of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
In Fig. 1 overall system designs, real time temperature adjusting is carried out by button, MCU is using Sheng group's monolithic semiconductor machine
HT46R47, operating voltage 2.2~5.5V, 2K program storage, 13 universaling I/O ports, wherein 4 AD mouthfuls available.Pass through two
Position LED subcodes pipe carries out temperature display, and buzzer sends alarm when set temperature is reached.Wherein, semiconductor refrigerating
Piece control section carries out voltage overturning using H bridges drive control circuit, so as to achieve the purpose that heat automatic control in refrigeration.
Such as Fig. 2, H-bridge drive circuit is usually used in the direction controlling of direct current generator, and the system introduces H-bridge drive circuit pair
Semiconductor chilling plate is controlled, when control signal PTC1 is high level, and PTC2 is low level, two 8,550 3 poles of left side arm
Pipe Ql and Q2 are turned on, since upper and lower two metal-oxide-semiconductors are respectively P-channel and N-channel, so any moment can only have 1 conducting,
And P pipes above at this time, i.e. Q5 conductings；And on an other arm, two triodes Q3 and Q4 are not turned on, N following at this time
Channel MOS tube turns on, and 12V voltage differences are then formed at semiconductor chilling plate both ends, and cooling piece is begun to warm up (or refrigeration).Together
Reason, when PTC1 is low level, and PTC2 is high level, semiconductor chilling plate voltage is overturn at this time, one for originally heating or freezing
Face starts to freeze or heat.
Such as Fig. 3, in system software overall procedure, in holding state after system electrification, it is first by after power button
System initialization, including being set to universaling I/O port, initial temperature acquisition and display etc., at this time shown temperature be negative temperature
The initial temperature of coefficient resistance acquisition；When press upper and lower key say trip temperature adjust when, MCU can than turn a current NTC be gathered
Temperature and user are automatically confirmed that by the temperature of key-press input and in the triggering of no button, and are controlled automatically according to comparative result
H-bridge drive circuit processed, controls semiconductor chilling plate, to achieve the purpose that heating automatically or refrigeration.It is heating or is freezing
During, charactron real-time display is gathered by NTC and by MCU treated temperature value, records the situation of temperature change in real time.
When temperature reaches design temperature, MCU stops the heating of semiconductor chilling plate by H-bridge drive circuit or refrigeration acts；At this point,
NTC is still in real-time collecting temperature, and when temperature is influenced be subject to external environment and reduces or improve, MCU drivings H-bridge circuit makes partly to lead
Body cooling piece acts, so that system maintains design temperature.
Using negative tempperature coefficient thermistor as temperature sensor, thermistor is mainly characterized by for temperature acquisition part
High to temperature control, thermal inertia is small, long lifespan, small, simple in structure, a variety of contour structures can be used, simultaneously
The system is safe to use, convenient, accurate, solves noise and life problems that traditional relay control is brought.
It is ON/OFF on/off key, UP (upward) respectively using 3 buttons using AD mouthfuls of progress key scan inputs
Key, DOWN (downward) key, can also integrate more buttons and be controlled certainly.
Claims (8)
1. a kind of semiconductor chilling plate thermostatic control system for driving circuit of being spoilt based on H, it is characterized in that：Described is divided into MCU temperature
It has been shown that, temperature control, temperature prompt, temperature acquisition and by parts such as key controls are spent, using HT46R47 as acp chip, is made
Cooling module is heated by the use of semiconductor chilling plate as core, using negative tempperature coefficient thermistor NTC as temperature acquisition element.
2. a kind of semiconductor chilling plate thermostatic control system of driving circuit of being spoilt based on H according to claim 1, feature
It is：In the overall system design, real time temperature adjusting is carried out by button, MCU is using Sheng group's monolithic semiconductor machine
HT46R47。
3. a kind of semiconductor chilling plate thermostatic control system of driving circuit of being spoilt based on H according to claim 1, feature
It is：In the control system, semiconductor chilling plate control section carries out voltage overturning using H bridges drive control circuit, so as to
Achieve the purpose that heat automatic control in refrigeration.
4. a kind of semiconductor chilling plate thermostatic control system of driving circuit of being spoilt based on H according to claim 1, feature
It is：The H-bridge drive circuit is usually used in the direction controlling of direct current generator, and the system introduces H-bridge drive circuit to semiconductor
Cooling piece is controlled, when control signal PTC1 be high level, PTC2 be low level when, two 8550 triode Ql of left side arm and
Q2 is turned on.
5. a kind of semiconductor chilling plate thermostatic control system of driving circuit of being spoilt based on H according to claim 1, feature
It is：The H-bridge drive circuit is since upper and lower two metal-oxide-semiconductors are respectively P-channel and N-channel, so any moment can only have 1
Conducting, and P pipes above at this time, i.e. Q5 conductings.
6. a kind of semiconductor chilling plate thermostatic control system of driving circuit of being spoilt based on H according to claim 1, feature
It is：On an other arm for the H-bridge drive circuit, two triodes Q3 and Q4 are not turned on, N-channel MOS following at this time
Pipe turns on, and 12V voltage differences are then formed at semiconductor chilling plate both ends, and cooling piece is begun to warm up (or refrigeration).
7. a kind of semiconductor chilling plate thermostatic control system of driving circuit of being spoilt based on H according to claim 1, feature
It is：In the system software overall procedure, in holding state after system electrification, by being carried out first after power button, system is initial
Change, including being set to universaling I/O port, initial temperature acquisition and display etc., at this time shown temperature for negative temperature coefficient heat
The initial temperature of quick electrical resistance collection.
8. a kind of semiconductor chilling plate thermostatic control system of driving circuit of being spoilt based on H according to claim 1, feature
It is：In the system software overall procedure, when press upper and lower key say trip temperature adjust when, MCU can than turn a current NTC be gathered
Temperature and user are automatically confirmed that by the temperature of key-press input and in the triggering of no button, and are controlled automatically according to comparative result
H-bridge drive circuit processed, controls semiconductor chilling plate, to achieve the purpose that heating automatically or refrigeration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611065832.7A CN108121381A (en) | 2016-11-28 | 2016-11-28 | A kind of semiconductor chilling plate thermostatic control system for driving circuit of being spoilt based on H |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611065832.7A CN108121381A (en) | 2016-11-28 | 2016-11-28 | A kind of semiconductor chilling plate thermostatic control system for driving circuit of being spoilt based on H |
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| Publication Number | Publication Date |
|---|---|
| CN108121381A true CN108121381A (en) | 2018-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611065832.7A Pending CN108121381A (en) | 2016-11-28 | 2016-11-28 | A kind of semiconductor chilling plate thermostatic control system for driving circuit of being spoilt based on H |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161477A (en) * | 2018-08-30 | 2019-01-08 | 北京龙基高科生物科技有限公司 | A kind of temperature-control circuit and its application based on gene sequencing |
| CN110106863A (en) * | 2019-05-22 | 2019-08-09 | 中国矿业大学(北京) | A kind of artificial stratum frigo of thermoelectric cooling |
| CN110870815A (en) * | 2018-08-30 | 2020-03-10 | 天宸(天津)生物科技有限公司 | Eye massage physiotherapy device |
| CN113110648A (en) * | 2021-03-18 | 2021-07-13 | 上海品致测控技术有限公司 | Novel temperature control system |
-
2016
- 2016-11-28 CN CN201611065832.7A patent/CN108121381A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161477A (en) * | 2018-08-30 | 2019-01-08 | 北京龙基高科生物科技有限公司 | A kind of temperature-control circuit and its application based on gene sequencing |
| CN110870815A (en) * | 2018-08-30 | 2020-03-10 | 天宸(天津)生物科技有限公司 | Eye massage physiotherapy device |
| CN110106863A (en) * | 2019-05-22 | 2019-08-09 | 中国矿业大学(北京) | A kind of artificial stratum frigo of thermoelectric cooling |
| CN110106863B (en) * | 2019-05-22 | 2020-11-06 | 中国矿业大学(北京) | Thermoelectric refrigeration artificial stratum freezer |
| CN113110648A (en) * | 2021-03-18 | 2021-07-13 | 上海品致测控技术有限公司 | Novel temperature control system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180605 |
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| WD01 | Invention patent application deemed withdrawn after publication |