CN104791890A - Intelligent control electric warming device based on single chip microcomputer - Google Patents
Intelligent control electric warming device based on single chip microcomputer Download PDFInfo
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- CN104791890A CN104791890A CN201510147687.6A CN201510147687A CN104791890A CN 104791890 A CN104791890 A CN 104791890A CN 201510147687 A CN201510147687 A CN 201510147687A CN 104791890 A CN104791890 A CN 104791890A
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- 238000010792 warming Methods 0.000 title abstract 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 230000002265 prevention Effects 0.000 claims description 11
- 230000000007 visual effect Effects 0.000 claims description 2
- 238000005485 electric heating Methods 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract 3
- 238000004134 energy conservation Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Control Of Resistance Heating (AREA)
Abstract
The invention discloses an intelligent control electric warming device based on a single chip microcomputer. The intelligent control electric warming device comprises an electric warming device body and a vacant combustion preventing device. The electric warming device body comprises a heating resistor. The vacant combustion preventing device comprises a single chip microcomputer, an electronic switch, a power source, a constant current source and a temperature sensor. The single chip microcomputer comprises a temperature collection module, a counting module and a control module. The temperature collection module is used for collecting temperature information of the temperature sensor. The counting module is used for calculating the preset threshold value reaching frequency of the temperature collected by the temperature collection module. The control module is used for controlling the electronic switch to be turned off when the counting module obtains the preset frequency. Due to the fact that the vacant combustion preventing device is arranged, the problem that the electric warming device is circularly heated when forgotten by a user or guarded by no users is effectively solved, losses caused by circulated heating on the electric heating device are avoided, electric energy can be saved, and energy conservation and environment protection are achieved.
Description
Technical Field
The invention relates to the field of daily life warm keeping, in particular to an intelligent control electric heater based on a single chip microcomputer.
Background
One kind of electric heater is to heat by heating water, namely a hot water bag, and is different from a traditional hot water bag, the electric hot water bag saves the trouble of adding water, can heat by only being plugged in a power supply for 10 minutes, and actually boils the water in the electric hot water bag to release heat by utilizing the hot water in the electric hot water bag. One is heat generated by chemical reaction, and the heat generated by the contact of the chemical substances in the heat-generating body is about 40 ℃. The other is to use the lithium battery function, the internal heating piece generates heat, and the USB interface is used for charging and discharging. The volume is small and exquisite, and the convenience is hand-carried, and the temperature can reach about 50 ℃.
From the heating principle of the electric hot-water bag, there are two main types of electrode type and electric heating element type:
1. the working principle of the solid electric heating cake filled with heat-insulating cotton (such as asbestos and the like) is as follows: the electric heater uses a double-temperature-control electric heat energy storage type structure to gradually release heat energy, an automatic overheat protection device and an automatic heat preservation indicating device are arranged in the electric heater, the electric heater is a small electric furnace controlled by a PTC temperature sensor switch, PTC is a temperature sensor with a positive temperature coefficient, when current passes through the electric heater, the electric heater can generate heat (the heat of the electric furnace can be conducted to the electric heater), when the temperature reaches a certain value, the resistance of the electric heater can be increased rapidly and can be regarded as disconnected, so that the electric heater stops consuming electric energy at the moment, and then the heat of the electric furnace is slowly released by means of heat.
2. The soft liquid electric heater uses new energy-storing heating agent and has fast heating temperature. The working principle of the disposable water injection is improved on the basis of the solid electric heating cake, and an electrode type heating method and dual temperature control insurance of temperature control and a thermal fuse are adopted. Under normal conditions, when the temperature of the liquid in the bag reaches 65 ℃, the temperature controller can automatically cut off the circuit and stop heating; and once the temperature controller control fails, the thermal fuse cuts off the power supply and stops heating.
Present electric heating formula electric heater can be when bag liquid temperature reaches the uniform temperature automatic cutout circuit stop heating, but because electric heater heat time is long, people often can not always be on one's side and wait for electric heater heating to accomplish, often can forget the electric heater of heating after the user leaves. This just leads to the electric heater to heat a period of time after the completion in the temperature decline, again heats, also can shorten electric heater's life when consuming the electric energy.
Disclosure of Invention
In order to solve the technical problem, the invention provides an intelligent control electric heater based on a single chip microcomputer, which comprises an electric heater body and an empty-burning prevention device, wherein the electric heater body comprises a heating resistor, and the empty-burning prevention device comprises the single chip microcomputer, an electronic switch, a power supply and a temperature sensor; wherein,
one end of the electronic switch is used for connecting an external power supply, and the other end of the electronic switch is connected with the heating resistor;
the power supply is respectively connected with the temperature sensor and the singlechip;
the single chip microcomputer comprises a temperature acquisition module, a counting module and a control module, wherein the temperature acquisition module is used for acquiring a temperature signal of the temperature sensor, the counting module is used for calculating the frequency of the temperature acquired by the temperature acquisition module reaching a preset threshold value, and the control module is used for controlling the electronic switch to be connected or disconnected when the temperature acquired by the temperature acquisition module reaches the preset threshold value and controlling the electronic switch to be kept disconnected when the count of the counting module reaches the preset threshold value.
Preferably, a circuit between the single chip microcomputer and the electronic switch is further provided with a driving module for driving the electronic switch.
Preferably, the temperature sensor is a digital temperature sensor.
Specifically, the power supply is an AC/DC power supply.
Preferably, the temperature monitoring device further comprises an alarm module, wherein the alarm module is respectively connected with the power supply and the single chip microcomputer and used for sending out an alarm signal when the temperature acquired by the temperature acquisition module reaches a preset threshold value.
Preferably, the alarm module is used for generating an alarm signal when the counting module reaches a preset number.
Preferably, the alarm signal is an audible and visual alarm signal.
Preferably, the data stored in the counting module is automatically cleared after power failure.
Preferably, the temperature monitoring device further comprises a display module which is respectively connected with the power supply and the single chip microcomputer and used for displaying the temperature information and the reminding information.
Optionally, the electronic switch is a thyristor or a relay.
The application of the invention has the following beneficial effects: according to the invention, the idle-burning prevention device is arranged, the number of times of circulating heating is judged through the counting module, and the heating power supply is cut off by controlling the electronic switch to be switched off when the number of times of heating reaches a certain amount, so that the problem of circulating heating of the electric warmer caused by forgetting or unattended operation is effectively solved, the loss of the electric warmer caused by circulating heating is avoided, the electric energy can be saved, and the electric warmer is energy-saving and environment-friendly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions and advantages of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a block diagram of a structure of an intelligent control electric heater based on a single chip microcomputer according to a first embodiment and a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, an embodiment of the invention provides an intelligent control electric heater based on a single chip microcomputer, which comprises an electric heater body and an idle-burning prevention device, wherein the electric heater body comprises a heating resistor, and the idle-burning prevention device comprises the single chip microcomputer, an electronic switch, a power supply and a temperature sensor; wherein,
one end of the electronic switch is used for connecting an external power supply, and the other end of the electronic switch is connected with the heating resistor;
the power supply is respectively connected with the temperature sensor and the singlechip; the power supply is an AC/DC power supply.
The single chip microcomputer comprises a temperature acquisition module, a counting module and a control module, wherein the temperature acquisition module is used for acquiring a temperature signal of the temperature sensor, the counting module is used for calculating the frequency of the temperature acquired by the temperature acquisition module reaching a preset threshold value, and the control module is used for controlling the electronic switch to be connected or disconnected when the temperature acquired by the temperature acquisition module reaches the preset threshold value and controlling the electronic switch to be kept disconnected when the count of the counting module reaches the preset threshold value. The electronic switch is a thyristor.
In order to accurately collect the temperature, the temperature sensor is a digital temperature sensor.
The digital temperature sensor is also called as a digital thermometer, and a temperature sensitive element, namely a temperature sensor (such as a platinum resistor, a thermocouple, a semiconductor, a thermistor and the like) is adopted to convert the change of temperature into the change of an electric signal, such as the change of voltage and current, and the change of temperature and the change of the electric signal have a certain relation, such as a linear relation, a certain curve relation and the like, the electric signal can convert an analog signal into a digital signal by using an analog-to-digital conversion circuit, namely an AD conversion circuit, and then the digital signal is sent to a processing unit, such as a single chip microcomputer or a PC (personal computer) and the like, the processing unit can link the digital signal and the temperature through internal software calculation to form a temperature value which can be displayed, such as 25.0 ℃, and then the temperature value can be displayed for people to observe through a display. Thus, the basic temperature measuring function of the digital thermometer is completed.
The temperature sensor can convert the temperature signal into an electric signal, so that the temperature-based control of the single chip microcomputer is realized.
The temperature of the electric heater is divided into a low-temperature starting temperature and a high-temperature cut-off temperature, the high-temperature cut-off temperature refers to the temperature at which the electric heater stops heating when the temperature sensor detects that the temperature reaches the high-temperature cut-off temperature, the single chip microcomputer controls the electronic switch to disconnect the circuit, and the electric heater stops heating; the low-temperature starting temperature refers to the temperature at which the electric heater starts to heat when the temperature is lower than a preset temperature, such as 20 ℃. When the temperature sensor detects that the low-temperature opening temperature is reached, the electronic switch is controlled by the single chip microcomputer to be switched on, and the electric heater starts to heat. When the temperature acquisition module gathered the temperature and reached predetermined temperature for example high temperature cutoff temperature, the count numerical value of counter adds one, reaches predetermined threshold value when the count numerical value of counter, if during three, single chip microcomputer control electronic switch keeps the disconnection, and the electricity heater no longer heats.
The temperature acquisition module is connected with the power supply and the single chip microcomputer respectively, and is used for acquiring the temperature of the power supply and the single chip microcomputer respectively.
The alarm module is used for generating an alarm signal when the counting module reaches a preset number of times.
The alarm signal is an acousto-optic alarm signal.
And the data stored by the counting module is automatically cleared after power failure.
The display module is connected with the power supply and the single chip microcomputer respectively and used for displaying temperature information and reminding information.
The application of the invention has the following beneficial effects: according to the invention, the idle-burning prevention device is arranged, the number of times of circulating heating is judged through the counting module, and the heating power supply is cut off by controlling the electronic switch to be switched off when the number of times of heating reaches a certain amount, so that the problem of circulating heating of the electric warmer caused by forgetting or unattended operation is effectively solved, the loss of the electric warmer caused by circulating heating is avoided, the electric energy can be saved, and the electric warmer is energy-saving and environment-friendly.
Example two:
referring to fig. 1, a second embodiment of the invention provides an intelligent control electric heater based on a single chip microcomputer, which comprises an electric heater body and an idle-burning prevention device, wherein the electric heater body comprises a heating resistor, and the idle-burning prevention device comprises the single chip microcomputer, an electronic switch, a power supply and a temperature sensor; wherein,
one end of the electronic switch is used for connecting an external power supply, and the other end of the electronic switch is connected with the heating resistor;
the power supply is respectively connected with the temperature sensor and the singlechip; the power supply is an AC/DC power supply.
The single chip microcomputer comprises a temperature acquisition module, a counting module and a control module, wherein the temperature acquisition module is used for acquiring a temperature signal of the temperature sensor, the counting module is used for calculating the frequency of the temperature acquired by the temperature acquisition module reaching a preset threshold value, and the control module is used for controlling the electronic switch to be connected or disconnected when the temperature acquired by the temperature acquisition module reaches the preset threshold value and controlling the electronic switch to be kept disconnected when the count of the counting module reaches the preset threshold value. The electronic switch is a relay.
Preferably, a circuit between the single chip microcomputer and the electronic switch is further provided with a driving module for driving the electronic switch.
In order to accurately collect the temperature, the temperature sensor is a digital temperature sensor.
The digital temperature sensor is also called as a digital thermometer, and a temperature sensitive element, namely a temperature sensor (such as a platinum resistor, a thermocouple, a semiconductor, a thermistor and the like) is adopted to convert the change of temperature into the change of an electric signal, such as the change of voltage and current, and the change of temperature and the change of the electric signal have a certain relation, such as a linear relation, a certain curve relation and the like, the electric signal can convert an analog signal into a digital signal by using an analog-to-digital conversion circuit, namely an AD conversion circuit, and then the digital signal is sent to a processing unit, such as a single chip microcomputer or a PC (personal computer) and the like, the processing unit can link the digital signal and the temperature through internal software calculation to form a temperature value which can be displayed, such as 25.0 ℃, and then the temperature value can be displayed for people to observe through a display. Thus, the basic temperature measuring function of the digital thermometer is completed.
The temperature sensor can convert the temperature signal into an electric signal, so that the temperature-based control of the single chip microcomputer is realized.
The temperature of the electric heater is divided into a low-temperature starting temperature and a high-temperature cut-off temperature, the high-temperature cut-off temperature refers to the temperature at which the electric heater stops heating when the temperature sensor detects that the temperature reaches the high-temperature cut-off temperature, the single chip microcomputer controls the electronic switch to disconnect the circuit, and the electric heater stops heating; the low-temperature starting temperature refers to the temperature at which the electric heater starts to heat when the temperature is lower than a preset temperature, such as 20 ℃. When the temperature sensor detects that the low-temperature opening temperature is reached, the electronic switch is controlled by the single chip microcomputer to be switched on, and the electric heater starts to heat. When the temperature acquisition module gathered the temperature and reached predetermined temperature for example high temperature cutoff temperature, the count numerical value of counter adds one, reaches predetermined threshold value when the count numerical value of counter, if during three, single chip microcomputer control electronic switch keeps the disconnection, and the electricity heater no longer heats.
The temperature acquisition module is connected with the power supply and the single chip microcomputer respectively, and is used for acquiring the temperature of the power supply and the single chip microcomputer respectively.
The alarm module is used for generating an alarm signal when the counting module reaches a preset number of times.
The alarm signal is an acousto-optic alarm signal.
And the data stored by the counting module is automatically cleared after power failure.
The display module is connected with the power supply and the single chip microcomputer respectively and used for displaying temperature information and reminding information.
The application of the invention has the following beneficial effects: according to the invention, the idle-burning prevention device is arranged, the number of times of circulating heating is judged through the counting module, and the heating power supply is cut off by controlling the electronic switch to be switched off when the number of times of heating reaches a certain amount, so that the problem of circulating heating of the electric warmer caused by forgetting or unattended operation is effectively solved, the loss of the electric warmer caused by circulating heating is avoided, the electric energy can be saved, and the electric warmer is energy-saving and environment-friendly.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The intelligent control electric warmer based on the single chip microcomputer is characterized by comprising an electric warmer body and an empty burning prevention device, wherein the electric warmer body comprises a heating resistor, and the empty burning prevention device comprises the single chip microcomputer, an electronic switch, a power supply and a temperature sensor; wherein,
one end of the electronic switch is used for connecting an external power supply, and the other end of the electronic switch is connected with the heating resistor;
the power supply is respectively connected with the temperature sensor and the singlechip;
the single chip microcomputer comprises a temperature acquisition module, a counting module and a control module, wherein the temperature acquisition module is used for acquiring a temperature signal of the temperature sensor, the counting module is used for calculating the frequency of the temperature acquired by the temperature acquisition module reaching a preset threshold value, and the control module is used for controlling the electronic switch to be connected or disconnected when the temperature acquired by the temperature acquisition module reaches the preset threshold value and controlling the electronic switch to be kept disconnected when the count of the counting module reaches the preset threshold value.
2. The intelligent control electric heater based on the single chip microcomputer according to claim 1, wherein a driving module for driving the electronic switch is further arranged on a circuit between the single chip microcomputer and the electronic switch.
3. The intelligent control electric heater based on the single chip microcomputer according to claim 1 or 2, wherein the temperature sensor is a digital temperature sensor.
4. The single-chip microcomputer-based intelligent control electric heater according to claim 3, wherein the power supply is an AC/DC power supply.
5. The intelligent control electric heater based on the single-chip microcomputer as claimed in claim 4, further comprising an alarm module, wherein the alarm module is respectively connected with the power supply and the single-chip microcomputer and is used for sending out an alarm signal when the temperature collected by the temperature collection module reaches a preset threshold value.
6. The intelligent control electric heater based on the single chip microcomputer according to claim 5, wherein the alarm module is used for generating an alarm signal when the counting module reaches a predetermined number of times.
7. The intelligent control electric heater based on the single chip microcomputer according to claim 5 or 6, wherein the alarm signal is an audible and visual alarm signal.
8. The intelligent control electric heater based on the single chip microcomputer according to claim 7, wherein the data stored in the counting module is automatically cleared after power failure.
9. The intelligent control electric heater based on the single chip microcomputer of claim 8, further comprising a display module connected with the power supply and the single chip microcomputer respectively for displaying temperature information and reminding information.
10. The intelligent control electric heater based on the single chip microcomputer according to claim 8, wherein the electronic switch is a thyristor or a relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510147687.6A CN104791890A (en) | 2015-03-31 | 2015-03-31 | Intelligent control electric warming device based on single chip microcomputer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510147687.6A CN104791890A (en) | 2015-03-31 | 2015-03-31 | Intelligent control electric warming device based on single chip microcomputer |
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| CN104791890A true CN104791890A (en) | 2015-07-22 |
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| CN201510147687.6A Pending CN104791890A (en) | 2015-03-31 | 2015-03-31 | Intelligent control electric warming device based on single chip microcomputer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105352024A (en) * | 2015-12-10 | 2016-02-24 | 深圳市珂荣信息技术有限公司 | Heating control method and heating control device of heating equipment |
| CN106403195A (en) * | 2016-10-18 | 2017-02-15 | 青岛海尔空调器有限总公司 | Control method and device for electric auxiliary heating device of air conditioner |
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| CN104202845A (en) * | 2014-09-19 | 2014-12-10 | 周晓明 | Electric water bag heating device and heating method thereof |
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2015
- 2015-03-31 CN CN201510147687.6A patent/CN104791890A/en active Pending
Patent Citations (5)
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| CN201211267Y (en) * | 2008-06-18 | 2009-03-25 | 韩旸 | Temperature adjustable electric hand warmer |
| CN201302224Y (en) * | 2008-09-16 | 2009-09-02 | 邓建威 | Intelligent micro controller unit controlled electric heating bag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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