CN115468312A - Constant temperature control device and instant water heater - Google Patents
Constant temperature control device and instant water heater Download PDFInfo
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- CN115468312A CN115468312A CN202211098718.XA CN202211098718A CN115468312A CN 115468312 A CN115468312 A CN 115468312A CN 202211098718 A CN202211098718 A CN 202211098718A CN 115468312 A CN115468312 A CN 115468312A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 167
- 238000010438 heat treatment Methods 0.000 claims abstract description 61
- 238000001514 detection method Methods 0.000 claims abstract description 50
- 230000033228 biological regulation Effects 0.000 claims abstract description 28
- 239000008236 heating water Substances 0.000 claims description 38
- 230000002457 bidirectional effect Effects 0.000 claims description 16
- 230000001960 triggered effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 239000004065 semiconductor Substances 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/219—Temperature of the water after heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/174—Supplying heated water with desired temperature or desired range of temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/37—Control of heat-generating means in heaters of electric heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/395—Information to users, e.g. alarms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
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- Chemical & Material Sciences (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Temperature (AREA)
Abstract
The invention discloses a constant temperature control device and an instant water heater, wherein the constant temperature control device comprises a temperature detection circuit, a heating regulation and control circuit and a main control circuit. The main control circuit is respectively connected with the temperature detection circuit and the heating regulation and control circuit. The invention detects the water temperature of the water outlet through the temperature detection circuit and outputs a temperature detection signal to the main control circuit; the feedback end of the main control circuit receives the temperature detection signal, and outputs a water temperature control signal after calculating the deviation value between the temperature value corresponding to the temperature detection signal and the set temperature value so as to control the heating regulation and control circuit to work, and further control the water temperature of the water outlet to be constant at the set temperature value, so that the constant temperature control of the water temperature of the water outlet is realized, the complexity of regulating the water temperature is reduced, and the operation is simpler and more convenient.
Description
Technical Field
The invention relates to the technical field of instant water heaters, in particular to a constant temperature control device and an instant water heater.
Background
Along with the increasing living standard of people, the comfort requirement of people on family life is higher and higher. Thus, a variety of water heaters have come along. At present, an instant water heater generally does not have a constant temperature control function, the instant water heater starts to heat when being powered on, the temperature of water is completely controlled by the size of water flow, and when hands are washed or bathed, a user is required to continuously adjust the water temperature to reach the temperature suitable for the user, and the operation process is complex.
Disclosure of Invention
The invention mainly aims to provide a thermostatic control device, aiming at solving the problem that the existing water heater does not have a thermostatic control function.
In order to achieve the above object, the present invention provides a thermostatic control device applied to an instantaneous water heater, where the instantaneous water heater includes a heating water path and a water outlet connected to the heating water path, and the thermostatic control device includes:
the temperature detection circuit is used for detecting the water temperature of the water outlet and outputting a temperature detection signal;
the heating regulation and control circuit is used for controlling the heating power of the heating waterway to regulate the water temperature of the water outlet when in work;
the main control circuit, main control circuit's feedback end with temperature detection circuit connects, main control circuit's control end with heating regulation and control circuit connects, main control circuit is used for receiving the temperature detection signal, and will the temperature value that temperature detection signal corresponds and the deviation value of setting for the temperature value calculate to output temperature control signal control heating regulation and control circuit work, in order to control the temperature of delivery port is invariable the setting for the temperature value.
In an embodiment, the thermostatic control device further includes a water temperature setting circuit, the water temperature setting circuit is connected to the controlled end of the main control circuit, and the water temperature setting circuit is configured to set a set temperature value of the water outlet.
In one embodiment, the water temperature setting circuit comprises a bidirectional encoder, and the bidirectional encoder is used for setting a set temperature value of the water outlet and outputting a temperature setting signal;
the main control circuit is also used for acquiring the set temperature value of the water outlet according to the temperature setting signal.
In an embodiment, the heating regulation and control circuit includes a bidirectional thyristor, a first end of the bidirectional thyristor is connected to the heating water path, a second end of the bidirectional thyristor is connected to an ac power supply, a trigger end of the bidirectional thyristor is connected to the main control circuit, and the bidirectional thyristor is configured to conduct a loop between the ac power supply and the heating water path when receiving the water temperature control signal, so as to drive the heating water path to operate.
In one embodiment, the thermostat control device further comprises:
the alarm circuit is connected with the main control circuit and is used for outputting a first alarm signal when in work;
the main control circuit is further used for outputting an alarm control signal when the temperature value corresponding to the temperature detection signal is larger than the temperature protection threshold value so as to control the alarm circuit to work.
In one embodiment, the alert circuit includes:
the buzzer is used for outputting a first alarm signal when working; and
the first switch circuit and the buzzer are connected between a power supply and the ground in series, a controlled end of the first switch circuit is connected with the main control circuit, and the first switch circuit is used for being conducted when the alarm control signal is received so as to control the buzzer to work.
In one embodiment, the thermostat control device comprises:
and the controlled end of the display circuit is connected with the main control circuit, and the display circuit is used for displaying the set temperature value.
In one embodiment, the thermostat control device comprises:
and the key assembly is connected with the main control circuit and used for outputting a trigger signal to control the startup or shutdown of the constant temperature control device when being triggered.
In one embodiment, the master control circuit includes:
the memory is used for storing the set temperature value of the water temperature setting circuit before power failure;
and the microcontroller is connected with the memory and used for reading the set temperature value from the memory after being electrified and controlling the heating regulation and control circuit to work so as to heat the water temperature of the water outlet to the set temperature value.
The invention also provides an instant water heater, which comprises a heating water path, a water outlet connected with the heating water path and the constant temperature control device.
According to the technical scheme, the heating power of the heating water path is controlled through the heating regulation and control circuit so as to regulate the water temperature at the water outlet of the instant water heater and realize the constant temperature control of the water temperature at the water outlet. Particularly, the temperature detection circuit detects the water temperature of the water outlet of the instant water heater, the temperature detection signal is output to the main control circuit, the main control circuit calculates the deviation value between the temperature value corresponding to the temperature detection signal and the set temperature value and outputs a water temperature control signal to control the heating regulation and control circuit to work, and then the water temperature of the water outlet is controlled to be the set temperature value constantly, so that the constant temperature control of the water temperature of the water outlet is realized, the complexity of regulating the water temperature is reduced, and the operation is simpler and more convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in 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 for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a general block diagram of one embodiment of a thermostat control device of the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of a thermostat control device of the invention;
FIG. 3 is a schematic structural diagram of a thermostat control device according to yet another embodiment of the invention;
FIG. 4 is a schematic structural view of another embodiment of a thermostat control device according to the present invention;
FIG. 5 is a circuit diagram of an embodiment of an alarm circuit of the thermostat control device of the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a constant temperature control device 91, and the constant temperature control device 91 is applied to an instant water heater 90.
At present, the instantaneous water heater 90 starts to heat when being powered on, and the temperature of water is controlled by adjusting the water flow, so that the water temperature needs to be continuously adjusted to reach the satisfactory temperature when people wash hands or bathe, and the operation process is very complex.
In order to solve the above problems, referring to fig. 1 and 3, in an embodiment of the present invention, the tankless water heater 90 includes a heating water path 40 and a water outlet connected to the heating water path 40, and the thermostatic control device 91 can control the water temperature at the water outlet when the tankless water heater 90 is used, so as to facilitate easy adjustment of the water temperature when a user washes hands or takes a bath.
In this embodiment, the thermostat control device 91 includes:
the temperature detection circuit 10 is used for detecting the water temperature of the water outlet and outputting a temperature detection signal by the temperature detection circuit 10;
the heating regulation and control circuit 30 is used for controlling the heating power of the heating waterway 40 when in work so as to regulate the water temperature of the water outlet;
the main control circuit 20, the feedback end of the main control circuit 20 with the temperature detection circuit 10 is connected, the control end of the main control circuit 20 with the heating regulation and control circuit 30 is connected, the main control circuit 20 is used for receiving the temperature detection signal, and calculating the temperature value corresponding to the temperature detection signal and the deviation value of the set temperature value, and outputting the water temperature control signal to control the heating regulation and control circuit 30 to work, so as to control the water temperature of the water outlet to be constant at the set temperature value.
Wherein, the temperature detection circuit 10 can adopt any temperature detection circuit 10 capable of detecting the water temperature at the water outlet. In this embodiment, the temperature detection circuit 10 can be implemented by a thermistor. The thermistor is a sensor resistor, and the resistance value of the thermistor changes with the change of temperature, unlike a general fixed resistor. The thermistor is a semiconductor, and its resistance value sharply decreases with an increase in temperature and exhibits nonlinearity. The resistance value of the thermistor changes by about 10 times as much as the lead thermal resistance when the temperature changes are the same, and therefore, it can be said that the thermistor is particularly sensitive to temperature changes. The temperature characteristic of a semiconductor is that the semiconductor conducts carriers (electrons and holes), and the number of carriers in the semiconductor is much smaller than that of free electrons in a metal, so that the resistivity of the semiconductor is large. As the temperature increases, the number of carriers participating in conduction in the semiconductor increases, so that the conductivity of the semiconductor increases and the resistivity decreases. Therefore, the water temperature at the water outlet is detected through the thermistor, and the accuracy of data can be improved. In practical application, most temperature detection devices are only provided with one thermistor and can only detect the temperature at a certain moment, and the measured water temperature has errors and cannot better reflect the water temperature at the water inlet because the water temperature at the water outlet can change along with the change of time and environment. Therefore, the temperature detection circuit 10 in this embodiment can be provided with a plurality of thermistors for detecting the water temperature at the water outlet, so as to improve the accuracy of data.
The heating control circuit 30 may be implemented by any heating control circuit 30, such as a relay, an optical coupler, etc., for controlling the heating power of the heating water path 40. In practical application, the heating power of the heating water path 40 can be controlled through the heating control circuit, so as to adjust the water temperature at the water outlet.
It should be noted that the heating water circuit 40 includes an electromagnetic heating section or a microwave heating section. Wherein, the electromagnetic heating section comprises a water pipe 41 and an internal heating body 42, and the electromagnetism acts on the internal heating body 42, namely the electromagnetic heating section is similar to the electromagnetic water boiling; the microwave in the microwave heating section can act on water molecules for heating, and can heat without the heating body 42, but the microwave acts on metal to melt and explode, so the water pipe 41 of the microwave heating section can be a ceramic or plastic water pipe 41, or a small water tank can be arranged, and the small water tank needs to adopt a ceramic inner container.
The main control circuit 20 can be implemented by a microcontroller 21 such as a single chip microcomputer or an FPGA. The main control circuit 20 is configured to receive the temperature detection signal, and calculate a deviation value between a temperature value corresponding to the temperature detection signal and a set temperature value, so as to control the heating regulation and control circuit 30, and further control the water temperature at the water outlet to be constant at the set temperature value.
In practical application, after the instantaneous water heater 90 is turned on, the water temperature at the water outlet is detected by the temperature detection circuit 10 and the water temperature detection signal is transmitted to the main control circuit 20, when the temperature value corresponding to the temperature detection signal is smaller than the set temperature value, the main control circuit 20 is required to calculate the deviation value between the temperature value corresponding to the temperature detection signal and the set temperature value, wherein the calculation includes calculation of proportion, integral and differential, so as to output a water temperature control signal to control the heating regulation and control circuit 30 to work, and further control the heating power of the heating water path 40, that is, the heating power of the heating water path 40 is increased, so that the water temperature is increased to reach the set temperature value; similarly, when the temperature value corresponding to the temperature detection signal is greater than the set temperature value, the main control circuit 20 is required to calculate the deviation value between the temperature value corresponding to the temperature detection signal and the set temperature value, so as to output the water temperature control signal to control the heating regulation and control circuit 30 to operate, and further control the heating power of the heating water path 40, that is, reduce the heating power of the heating water path 40, so as to reduce the water temperature to reach the set temperature value, thereby realizing the constant temperature control of the water temperature at the water outlet at the set temperature value.
According to the technical scheme, the heating power of the heating water path 40 is controlled through the heating regulation and control circuit 30, so that the water temperature of the water outlet of the instant water heater 90 is regulated, and the constant temperature control of the water temperature of the water outlet is realized. Specifically, the temperature detection circuit 10 detects the water temperature at the water outlet of the instantaneous water heater 90, and outputs a temperature detection signal to the main control circuit 20, and the main control circuit 20 calculates the deviation value between the temperature value corresponding to the temperature detection signal and the set temperature value and outputs a water temperature control signal to control the heating regulation and control circuit 30 to operate, so as to control the water temperature at the water outlet to be constant at the set temperature value, thereby realizing the constant temperature control of the water temperature at the water outlet. According to the invention, the temperature value of the water outlet is detected by the temperature detection circuit 10 and fed back to the main control circuit 20, the main control circuit 20 controls the heating regulation and control circuit 30 to control the heating water path 40, so that a user can realize that the water temperature is constant at a set temperature value without continuously regulating the water temperature when using water, and the operation is simpler and more convenient.
Referring to fig. 2, in an embodiment, the thermostatic control device 91 further includes a water temperature setting circuit 50, the water temperature setting circuit 50 is connected to the controlled end of the main control circuit 20, and the water temperature setting circuit 50 is configured to set a set temperature value of the water outlet.
The water temperature setting circuit 50 can be implemented by any water temperature setting circuit 50 capable of adjusting the set water temperature. In practical application, a user needs a hotter water temperature, i.e., a set temperature value of the water outlet can be set through the water temperature setting circuit 50, and the water temperature is adjusted to reach the temperature needed by the user.
Further, the water temperature setting circuit 50 includes a bidirectional encoder, and the bidirectional encoder is configured to set a set temperature value of the water outlet and output a temperature setting signal; the main control circuit 20 is further configured to obtain a set temperature value of the water outlet according to the temperature setting signal.
This embodiment adopts the two-way encoder to set for the temperature value of delivery port, and during the wrench movement two-way encoder, the contact switch-on of two-way encoder and output temperature set signal to main control circuit 20, and main control circuit 20 can accurately discern the wrench movement direction of two-way encoder according to the temperature set signal to output temperature control signal control heating regulation and control circuit 30 control heating water route 40 work, reach the set for temperature value with the temperature of control delivery port.
Referring to fig. 3, in an embodiment, the heating regulation and control circuit 30 includes a TRIAC, a first end of the TRIAC is connected to the heating water path 40, a second end of the TRIAC is connected to an ac power source 92, a trigger end of the TRIAC is connected to the main control circuit 20, and the TRIAC is configured to conduct a loop between the ac power source 92 and the heating water path 40 to drive the heating water path 40 to operate when receiving the water temperature control signal.
In the embodiment, the bidirectional triode thyristor TRIAC is used for controlling the on-off of the loop between the alternating current power supply 92 and the heating water path 40 so as to control the heating power of the heating water path 40. It should be noted that the TRIAC is a one-way conductive switch, and can replace two thyristors with opposite polarities connected in parallel, and only one trigger circuit is needed. The trigger mode of the TRIAC is similar to that of the TRIAC, and can be triggered by a direct current signal, an alternating current phase signal or a pulse signal, unlike the case where the trigger signal is a negative voltage, the TRIAC can still be triggered. Therefore, the bidirectional triode thyristor TRIAC can be conducted in two directions and can be triggered in both positive and negative half cycles, full-wave power control can be performed, and the heating effect is improved. Therefore, the TRIAC can control the ac power more conveniently than the TRIAC.
Referring to fig. 2 and 4, in an embodiment, the thermostat control device 91 further includes:
an alarm circuit 70, wherein the alarm circuit 70 is connected to the main control circuit 20, and the alarm circuit 70 is configured to output a first alarm signal when in operation;
the main control circuit 20 is further configured to output an alarm control signal when the temperature value corresponding to the temperature detection signal is greater than the temperature protection threshold value, so as to control the alarm circuit 70 to operate.
In practical application, when the temperature detection circuit 10 is disconnected or short-circuited, the temperature value corresponding to the temperature detection signal received by the main control circuit 20 is greater than the temperature protection threshold, that is, an alarm control signal is output to the alarm circuit 70, and the alarm circuit 70 is controlled to operate, so as to notify a user that a relevant measure such as power failure needs to be taken in time.
Further, the alarm circuit 70 includes:
a buzzer 72, the buzzer 72 being configured to output a first alarm signal when in operation; and
the first switch circuit 71, the first switch circuit 71 and the buzzer 72 are connected in series between a power supply and the ground, a controlled end of the first switch circuit 71 is connected with the main control circuit 20, and the first switch circuit 71 is configured to be turned on when receiving the alarm control signal to control the buzzer 72 to work.
Referring to fig. 4, the first switch circuit 71 includes a first resistor R1, a second resistor R2, a third resistor R3, and a first switch tube Q1, and the specific connection relationship refers to fig. 4, where the first resistor R1 and the second resistor R2 are used for current limiting, the third resistor R3 is used for pull-down, the first switch tube Q1 may be a triode or an MOS transistor, and the main control circuit 20 controls the first switch tube Q1 to be turned on or off by outputting a high-low level signal, that is, controls the first switch circuit 71 to be turned on or turned off.
In this embodiment, when the temperature detecting circuit 10 is turned off or short-circuited, the main control circuit 20 controls the first switch circuit 71 to be turned on, and further controls the buzzer 72 to operate to output the first alarm signal, so as to notify the user that the temperature detecting circuit 10 is out of order and take relevant measures in time, so as to prevent the user from being scalded due to continuous heating of the heating water path 40.
Referring to fig. 2, in an embodiment, the thermostatic control device 91 comprises:
the display circuit 80, the controlled end of the display circuit 80 with the master control circuit 20 is connected, the display circuit 80 is used for showing the set temperature value.
The display circuit 80 may be any display circuit 80 that can display a set temperature value. In this embodiment, the display circuit 80 can be an LED display screen to display the set temperature value set by the user, so that the user can know the set temperature value conveniently. The LED display screen is a device which is composed of small LED module panels and is used for displaying various information such as characters, images, videos and the like. Compared with an LCD display screen, the LED display screen has small volume, low power consumption and more energy conservation and environmental protection.
In this embodiment, the display circuit 80 is connected to the main control circuit 20, and the main control circuit 20 controls the display circuit 80 to operate according to the water temperature setting signal outputted by the water temperature setting circuit 50, so as to display the set temperature value, which is convenient for the user to know the set temperature value.
Referring to fig. 2, in an embodiment, the thermostatic control device 91 comprises:
the key assembly 60 is connected with the main control circuit 20, and the key assembly 60 is used for outputting a trigger signal to control the start or the shutdown of the thermostatic control device 91 when being triggered.
In the present embodiment, the key assembly 60 may be implemented by the key assembly 60 such as a push button switch. In practical applications, a user may press a button switch, which outputs a trigger signal to control the thermostat control device 91 to start up; when the thermostat 91 is in the on state, the user can press the button switch again, that is, the thermostat 91 can be controlled to be off, and the user can control the thermostat 91 by simply pressing the button switch, which is very convenient.
Referring to fig. 2, in an embodiment, the main control circuit 20 includes:
the memory 22, the memory 22 is used for storing the set temperature value of the water temperature setting circuit 50 before power failure;
and the microcontroller 21 is connected with the memory 22, and the microcontroller 21 is used for reading the set temperature value from the memory 22 after being powered on and controlling the heating regulation and control circuit 30 to work so as to heat the water temperature at the water outlet to the set temperature value.
The microcontroller 21 may be any type of microcontroller 21 that can control the heating water circuit 40, such as STM32, 80C51; the memory 22 may be any type of chip having a memory function, such as 24C02.
In this embodiment, the memory 22 may store a set temperature value of the water temperature setting circuit 50 before power failure, and the microcontroller 21 may directly read the set temperature value from the memory 22 after power on, that is, the microcontroller 21 may heat the water temperature to the set temperature value without setting the temperature again by the user, so as to implement intelligent control.
The invention also provides an instant water heater 90, wherein the instant water heater 90 comprises a heating water path 40, a water outlet connected with the heating water path 40 and the constant temperature control device 91; the specific structure of the thermostatic control device 91 refers to the above-mentioned embodiments, and since the instant water heater 90 adopts all the technical solutions of all the above-mentioned embodiments, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are achieved, and no further description is given here.
In this embodiment, the thermostat 91 is connected to the heating water circuit 40 of the tankless water heater 90. Detect the temperature of delivery port and output temperature detection signal to main control circuit 20 through temperature detection circuit 10, main control circuit 20 outputs the temperature control signal to heating regulation and control circuit 30 according to the temperature value that temperature detection signal corresponds and the temperature value of setting for, controls the heating power of heating water route 40, constantly adjusts the temperature of delivery port in order invariably to be in the temperature value of setting for, realizes thermostatic control delivery port temperature, and operates more portably.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a thermostatic control device is applied to instant heating type water heater, its characterized in that, instant heating type water heater is including heating water route and connection the delivery port in heating water route, thermostatic control device includes:
the temperature detection circuit is used for detecting the water temperature of the water outlet and outputting a temperature detection signal;
the heating regulation and control circuit is used for controlling the heating power of the heating waterway to regulate the water temperature of the water outlet when in work;
the main control circuit, main control circuit's feedback end with temperature detection circuit connects, main control circuit's control end with heating regulation and control circuit connects, main control circuit is used for receiving the temperature detection signal, and will the temperature value that temperature detection signal corresponds and the deviation value of setting for the temperature value calculate to output temperature control signal control heating regulation and control circuit work, in order to control the temperature of delivery port is invariable the setting for the temperature value.
2. The thermostatic control device of claim 1, further comprising a water temperature setting circuit, wherein the water temperature setting circuit is connected to the controlled end of the main control circuit, and the water temperature setting circuit is used for setting a set temperature value of the water outlet.
3. A thermostatic control device according to claim 2, wherein said water temperature setting circuit includes a bi-directional encoder for setting a set temperature value of said water outlet and outputting a temperature setting signal;
the main control circuit is also used for acquiring the set temperature value of the water outlet according to the temperature setting signal.
4. The thermostatic control device according to claim 1, wherein the heating regulation and control circuit comprises a bidirectional thyristor, a first end of the bidirectional thyristor is connected with the heating water path, a second end of the bidirectional thyristor is connected with an alternating current power supply, a trigger end of the bidirectional thyristor is connected with the main control circuit, and the bidirectional thyristor is used for conducting a loop between the alternating current power supply and the heating water path to drive the heating water path to work when receiving the water temperature control signal.
5. A thermostat control device as claimed in claim 1, wherein the thermostat control device further comprises:
the alarm circuit is connected with the main control circuit and is used for outputting a first alarm signal when in work;
the main control circuit is further used for outputting an alarm control signal when the temperature value corresponding to the temperature detection signal is larger than the temperature protection threshold value so as to control the alarm circuit to work.
6. The thermostat control device of claim 4, wherein the alarm circuit comprises:
the buzzer is used for outputting a first alarm signal when working; and
the first switch circuit and the buzzer are connected between a power supply and the ground in series, a controlled end of the first switch circuit is connected with the main control circuit, and the first switch circuit is used for being conducted when the alarm control signal is received so as to control the buzzer to work.
7. A thermostat control device as claimed in claim 1, wherein the thermostat control device comprises:
and the controlled end of the display circuit is connected with the main control circuit, and the display circuit is used for displaying the set temperature value.
8. A thermostat control device as claimed in claim 1, wherein the thermostat control device comprises:
and the key assembly is connected with the main control circuit and used for outputting a trigger signal to control the startup or shutdown of the constant temperature control device when being triggered.
9. The thermostat control device of claim 1, wherein the master circuit comprises:
the memory is used for storing the set temperature value of the water temperature setting circuit before power failure;
and the microcontroller is connected with the memory and is used for reading the set temperature value from the memory after being electrified and controlling the heating regulation and control circuit to work so as to heat the water temperature of the water outlet to the set temperature value.
10. A tankless water heater comprising a heating water circuit and a water outlet connected to said heating water circuit and a thermostatic control device according to any one of claims 1 to 9.
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| CN202211098718.XA CN115468312A (en) | 2022-09-07 | 2022-09-07 | Constant temperature control device and instant water heater |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515595Y (en) * | 2001-09-17 | 2002-10-09 | 徐正华 | Instant heating water tank |
| CN202445862U (en) * | 2011-11-25 | 2012-09-26 | 陈晓明 | Panel device for rapid tea making machine |
| CN205333197U (en) * | 2015-12-21 | 2016-06-22 | 杭州电缆股份有限公司 | Online conductor preheating temperature measures digital display unit |
| CN106403307A (en) * | 2016-11-28 | 2017-02-15 | 博罗县堡斯莱电器有限公司 | Instant electric water heater and control method thereof |
| CN106440392A (en) * | 2016-11-23 | 2017-02-22 | 张洛宁 | Instantaneous-heating type electromagnetic water heater capable of automatically regulating temperature |
| CN109812904A (en) * | 2019-02-19 | 2019-05-28 | 奥克斯空调股份有限公司 | A kind of humidifier |
| WO2021140251A1 (en) * | 2020-01-10 | 2021-07-15 | #34Sarpedon Jessy | Heating system and method |
| CN215777315U (en) * | 2021-07-02 | 2022-02-11 | 旭宝乐科技(深圳)有限公司 | Heating and heat preservation circuit, device and system |
-
2022
- 2022-09-07 CN CN202211098718.XA patent/CN115468312A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515595Y (en) * | 2001-09-17 | 2002-10-09 | 徐正华 | Instant heating water tank |
| CN202445862U (en) * | 2011-11-25 | 2012-09-26 | 陈晓明 | Panel device for rapid tea making machine |
| CN205333197U (en) * | 2015-12-21 | 2016-06-22 | 杭州电缆股份有限公司 | Online conductor preheating temperature measures digital display unit |
| CN106440392A (en) * | 2016-11-23 | 2017-02-22 | 张洛宁 | Instantaneous-heating type electromagnetic water heater capable of automatically regulating temperature |
| CN106403307A (en) * | 2016-11-28 | 2017-02-15 | 博罗县堡斯莱电器有限公司 | Instant electric water heater and control method thereof |
| CN109812904A (en) * | 2019-02-19 | 2019-05-28 | 奥克斯空调股份有限公司 | A kind of humidifier |
| WO2021140251A1 (en) * | 2020-01-10 | 2021-07-15 | #34Sarpedon Jessy | Heating system and method |
| CN215777315U (en) * | 2021-07-02 | 2022-02-11 | 旭宝乐科技(深圳)有限公司 | Heating and heat preservation circuit, device and system |
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