CN215777315U - Heating and heat preservation circuit, device and system - Google Patents
Heating and heat preservation circuit, device and system Download PDFInfo
- Publication number
- CN215777315U CN215777315U CN202121508679.7U CN202121508679U CN215777315U CN 215777315 U CN215777315 U CN 215777315U CN 202121508679 U CN202121508679 U CN 202121508679U CN 215777315 U CN215777315 U CN 215777315U
- Authority
- CN
- China
- Prior art keywords
- heating
- circuit
- resistor
- main control
- control chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model discloses a heating and heat-preserving circuit, a device and a system, wherein the heating and heat-preserving circuit detects the temperature in a heater in real time through a temperature detection circuit and sends the detected current temperature information to a main control chip; the main control chip compares the voltage or current parameter in the current temperature information with a preset reference voltage or current, generates a heating signal when the voltage or current parameter is smaller than the preset reference voltage or current, and sends the heating signal to a heating circuit; the heating circuit heats the water in the heater when receiving the heating signal. According to the utility model, the current temperature information of the water in the heater is detected in real time, and when the voltage or current parameter of the current temperature information does not meet the preset reference voltage or current, the water in the heater is heated to keep the temperature at a proper value, so that the water with a proper temperature can be timely provided for brewing the milk powder.
Description
Technical Field
The utility model relates to the technical field of milk powder brewing, in particular to a heating and heat-preserving circuit, a device and a system.
Background
In life, most families feed infants with formula milk powder, and the artificial milk powder brewing has a plurality of disadvantages and inconveniences. Scientific research shows that the optimal temperature of the milk for infants is about 37 ℃, the water temperature for brewing the milk powder is about 45-60 ℃, and the milk powder brewed in the temperature range does not damage the nutritional ingredients of the milk and has proper temperature. However, when the milk is infused late at night, a lot of time is needed to heat cold water to a proper temperature or cool boiled water to a proper temperature, and especially, in the waiting process late at night in winter, not only the baby is starved, but also the guardian who infuses the milk can be frozen.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a heating and heat-preserving circuit, a heating and heat-preserving device and a heating and heat-preserving system, and aims to solve the technical problem that water with proper temperature is difficult to be supplied to brewed milk powder in time in the prior art.
In order to achieve the above object, the present invention provides a heating and thermal insulating circuit, including: the temperature detection circuit comprises a main control chip, a temperature detection circuit and a heating circuit;
the main control chip is respectively connected with the temperature detection circuit and the heating circuit;
the temperature detection circuit is used for detecting the temperature in the heater in real time and sending the detected current temperature information to the main control chip;
the main control chip is used for comparing the voltage or current parameter in the current temperature information with a preset reference voltage or current, generating a heating signal when the voltage or current parameter is smaller than the preset reference voltage or current, and sending the heating signal to the heating circuit;
the heating circuit is used for heating the water in the heater when receiving the heating signal.
Optionally, the heating and temperature maintaining circuit further comprises: a reset circuit;
the reset circuit is connected with the main control chip;
the reset circuit is used for generating a reset signal when the voltage or current parameter meets a preset reference voltage or current, and sending the reset signal to the main control chip;
the main control chip is further used for generating a cut-off signal when receiving the reset signal and sending the cut-off signal to the heating circuit;
the heating circuit is also used for stopping heating the water in the heater when receiving the cut-off signal.
Optionally, the heating and temperature maintaining circuit further comprises: a water tank detection circuit;
the water tank detection circuit is connected with the main control chip;
the water tank detection circuit is used for detecting the water amount in the water tank to obtain water amount information and sending the water amount information to the main control chip;
the main control chip is further used for generating alarm information when the water amount information does not meet the preset condition, and sending the alarm information to external alarm equipment for alarming.
Optionally, the heating and temperature maintaining circuit further comprises: an overtemperature protection circuit;
the overtemperature protection circuit is connected with the main control chip;
the overtemperature protection circuit is used for generating a power-off signal when the voltage or current parameter is greater than a preset reference voltage or current so as to power off the heating and heat-preserving circuit.
Optionally, the temperature detection circuit includes: the temperature detection device comprises a temperature detection chip, a first resistor, a second resistor and a third resistor;
the first end of the first resistor is connected with a first power supply, the second end of the first resistor is connected with the first end of the temperature detection chip, the second end of the temperature detection chip is respectively connected with the first end of the second resistor and the first end of the third resistor, the second end of the third resistor is connected with the main control chip, and the second end of the second resistor is grounded.
Optionally, the heating circuit comprises: the fourth resistor, the fifth resistor, the sixth resistor, the bidirectional controllable photoelectric coupler and the bidirectional controllable silicon;
the first end of the fourth resistor is connected with the main control chip, and the second end of the fourth resistor is connected with the first end of the bidirectional controllable photoelectric coupler;
the third end of the bidirectional controllable photoelectric coupler is connected with the first end of the fifth resistor, the fourth end of the bidirectional controllable photoelectric coupler is connected with the first end of the bidirectional controllable silicon, and the second end of the bidirectional controllable photoelectric coupler is grounded;
the second end of the bidirectional controllable silicon is connected with the second end of the fifth resistor and the second end of the sixth resistor, the third end of the bidirectional controllable silicon is connected with a zero line of an external power supply, and the first end of the sixth resistor is connected with a live line of the external power supply.
Optionally, the reset circuit comprises: the photoelectric coupler comprises a seventh resistor, an eighth resistor, a ninth resistor and a photoelectric coupler;
the first end of the seventh resistor is connected with the second power supply, the second end of the seventh resistor is connected with the second end of the eighth resistor and the first end of the photoelectric coupler, the second end of the photoelectric coupler is connected with the first end of the eighth resistor and the shell, the third end of the photoelectric coupler is connected with the second end of the ninth resistor and the main control chip, the fourth end of the photoelectric coupler is grounded, and the first end of the ninth resistor is connected with the first power supply.
Optionally, the water tank detection circuit comprises: the water tank detection chip, the tenth resistor, the eleventh resistor and the first capacitor;
the first end of the water tank detection chip is connected with the second end of the tenth resistor and the first end of the eleventh resistor, the first end of the tenth resistor is connected with the first power supply, the second end of the water tank detection chip is grounded with the second end of the first capacitor, and the second end of the eleventh resistor is connected with the first end of the first capacitor and the main control chip
In order to achieve the purpose, the utility model also provides a heating and heat-preserving device which comprises the heating and heat-preserving circuit.
In order to achieve the purpose, the utility model also provides a heating and heat-preserving system which comprises the heating and heat-preserving device.
The utility model provides a heating and heat-preserving circuit, a device and a system, wherein the heating and heat-preserving circuit detects the temperature in a heater in real time through a temperature detection circuit and sends the detected current temperature information to a main control chip; the main control chip compares the voltage or current parameter in the current temperature information with a preset reference voltage or current, generates a heating signal when the voltage or current parameter is smaller than the preset reference voltage or current, and sends the heating signal to a heating circuit; the heating circuit heats the water in the heater when receiving the heating signal. According to the utility model, the current temperature information of the water in the heater is detected in real time, and the water in the heater is heated to keep the temperature at a proper value when the voltage or current parameter of the current temperature information does not meet the preset reference voltage or current, so that the water with a proper temperature can be timely provided for brewing the milk powder.
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 schematic structural diagram of a first embodiment of a heating and maintaining circuit according to the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of a heating and maintaining circuit according to the present invention;
FIG. 3 is a schematic circuit diagram of a second embodiment of the heating and maintaining circuit of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
20 | |
| 30 | |
40 | |
| 50 | Water |
60 | Overtemperature protection circuit |
| VCC1～VCC2 | First to second power supplies | OC1 | Bidirectional controllable photoelectric coupler |
| R1～R11 | First to eleventh resistors | OC2 | Photoelectric coupler |
| U1 | Temperature detection chip | U2 | Water tank detection chip |
| CH | Shell body | L、N | Live wire and zero line |
| GND | Ground connection | C1 | First capacitor |
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
It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
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.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a heating and thermal insulating circuit according to a first embodiment of the present invention.
As shown in fig. 1, in the present embodiment, the heating and maintaining circuit includes: the main control chip 10, the temperature detection circuit 20 and the heating circuit 30; the main control chip 10 is connected to the temperature detection circuit 20 and the heating circuit 30 respectively.
The main control chip 10 is a chip that controls the heating and temperature maintaining circuit. The main control chip 10 may be a single chip or other chips with the same function. The temperature detection circuit 20 is a circuit for detecting the temperature of water in the heater. The temperature detection circuit 20 includes a temperature sensor, and the water in the heater is low-temperature white water subjected to heat treatment. The temperature detection circuit 20 may be a plurality of temperature detection circuits, which respectively detect the water temperatures at different temperature positions, for example, the water inlet temperature detection circuit may detect the temperature of water at the water inlet of the heater, and the water outlet temperature detection circuit may detect the temperature of water at the water outlet of the heater. The heating circuit 30 is a circuit for heating water in the heater. When the water temperature is lower than the suitable temperature, the heating circuit 30 heats the water in the heater according to the heating instruction.
In a specific implementation, the temperature detection circuit 20 may detect the temperature in the heater in real time, and send the detected current temperature information to the main control chip 10; the main control chip 10 may compare the voltage or current parameter in the current temperature information with a preset reference voltage or current, generate a heating signal when the voltage or current parameter is smaller than the preset reference voltage or current, and send the heating signal to the heating circuit 30; the heating circuit 30 may heat the water in the heater upon receiving the heating signal.
The current temperature information is temperature information of water inside the heater at the current time. The current temperature information may be collected by a temperature sensor in the temperature detection circuit. The voltage or current parameter in the current temperature information refers to voltage information when the current temperature information is transmitted in a voltage signal or current signal mode, and the current temperature information can be displayed through the voltage information. The preset reference voltage or current is a voltage or current preset to represent a suitable water temperature. Whether the water temperature in the heater is suitable for directly brewing the milk powder can be determined by comparing the voltage or current parameter reflecting the current temperature information with a preset reference voltage or current. The heating signal is a signal for controlling the heating circuit and the water in the heater to heat.
In the present embodiment, a heating and thermal insulation circuit is provided, which detects the temperature in the heater in real time through a temperature detection circuit 20, and sends the detected current temperature information to a main control chip 10; the main control chip 10 compares the voltage or current parameter in the current temperature information with a preset reference voltage or current, generates a heating signal when the voltage or current parameter is smaller than the preset reference voltage or current, and sends the heating signal to the heating circuit 30; the heating circuit 30 heats the water in the heater upon receiving the heating signal. In the embodiment, the current temperature information of the water in the heater is detected in real time, and the water in the heater is heated to keep the temperature at a proper value when the voltage or current parameter of the current temperature information does not meet the preset reference voltage or current, so that the water with the proper temperature can be timely provided for brewing the milk powder.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a heating and thermal insulating circuit according to a second embodiment of the present invention. Based on the first embodiment of the heating and thermal insulation circuit, a second embodiment of the heating and thermal insulation circuit of the present invention is provided.
In this embodiment, the heating and temperature maintaining circuit further includes: a reset circuit 40; the reset circuit 40 is connected to the main control chip 10.
The reset circuit 40 is a circuit for controlling the heating circuit 20 to stop heating the water in the heater by the main control chip 10 when the temperature of the water in the heater reaches a set temperature. When the water temperature reaches the appropriate temperature for milk making, the temperature in the heater does not need to be heated continuously, the reset circuit 40 can generate a corresponding signal, and the heating circuit is controlled to stop heating to avoid the overhigh water temperature. For example, when the set water temperature is 60 degrees celsius, the reset circuit 40 may control the heating circuit 20 to stop heating the water in the heater when the water temperature in the heater reaches 60 degrees celsius.
In a specific implementation, the reset circuit 40 may generate a reset signal when the voltage or current parameter satisfies a preset reference voltage or current, and send the reset signal to the main control chip 10; the main control chip 10 may generate a cut-off signal when receiving the reset signal, and send the cut-off signal to the heating circuit 30; the heating circuit 30 may stop heating the water in the heater when receiving the off signal.
The reset signal is a signal generated by the reset circuit to cause the main control chip 10 to generate a cut-off signal. The off signal is a signal for controlling the heating circuit 30 to stop heating the water in the heater.
In this embodiment, the heating and temperature maintaining circuit further includes: a water tank detection circuit 50; wherein, the water tank detection circuit 50 is connected with the main control chip 10.
The tank detection circuit 50 is a circuit for detecting information on the amount of water in the tank. The water tank is a water storage device, a large amount of cold boiled water is usually stored in the water tank, the water tank and the heater can be connected through a valve, water in the water tank can flow into the heater through the valve to be heated, insulated and stored, enough water needed for brewing milk powder for several times can be stored in the heater, and the problem that water is insufficient due to the fact that the water is splashed possibly is avoided. The tank detection circuit 50 may be a circuit including a level sensor that can determine information on the amount of water in the tank by measuring the level of the water in the tank. When the water quantity in the water tank is insufficient, the guardian can be reminded to supplement the water quantity.
In a specific implementation, the water tank detection circuit 50 may detect the water amount in the water tank in real time to obtain water amount information, or certainly, may detect the water amount in the water tank by setting a certain time interval, and send the water amount information to the main control chip 10; the main control chip 10 may further generate alarm information when the water amount information does not satisfy the preset condition, and send the alarm information to an external alarm device for alarming.
Wherein, the water quantity information is the residual quantity information of water in the water tank at the current moment. The preset condition is a condition for previously setting the remaining amount of water in the water tank. The alarm information is used for alarming the water shortage in the water tank. The alarm device can alarm through voice broadcast or the modes of the indicator lamp constantly lighting, flashing and the like.
In this embodiment, the heating and temperature maintaining circuit further includes: an overtemperature protection circuit 60; the over-temperature protection circuit 60 is connected to the main control chip 10.
The overtemperature protection circuit 60 is a circuit for performing a power-off process on the heating and heat-retaining circuit when the temperature of water exceeds a predetermined temperature due to continuous heating by the heating circuit. The over-temperature protection circuit 60 may avoid damage to the circuit. For example, when the generation or transmission phase of the reset signal or the cut-off signal is failed, the heating circuit can continuously heat the water in the heater, so that the water for milk making at the proper temperature cannot be timely provided, and the heating and heat preservation circuit can be damaged.
In a specific implementation, the over-temperature protection circuit 60 may generate a power-off signal when the voltage or current parameter is greater than a preset reference voltage or current, so as to control the connection between the heating and thermal insulation circuit and an external power supply to be disconnected, thereby protecting the entire circuit.
Referring to fig. 3, in the present embodiment, the temperature detection circuit 10 includes: the temperature detection chip U1, a first resistor R1, a second resistor R2 and a third resistor R3; wherein, the first end of first resistance R1 is connected with first power VCC1, the second end of first resistance R1 with the first end of temperature detection chip U1 is connected, the second end of temperature detection chip U1 respectively with the first end of second resistance R2 and the first end of third resistance R3 are connected, the second end of third resistance R3 with main control chip 10 connects, the second end ground of second resistance R2.
The temperature detection chip U1 may be a chip for detecting the water temperature. The temperature detection chip U1 may be a chip inside the temperature sensor. The first resistor R1 is a variable resistor, and the voltage value input to the temperature detecting chip U1 can be determined by adjusting the resistance value of the first resistor R1. The second resistor R2 is a pull-up resistor, and the second resistor R2 can ensure that the output end of the temperature detection chip outputs a certain voltage value signal.
In a specific implementation, the first power VCC1 may provide a voltage to the temperature detection chip U1 through the first resistor R1, and the temperature detection chip U1 may detect current temperature information in the heater, and send the detected current temperature information to the main control chip 10 through the third resistor R3 in the form of a voltage signal.
In the present embodiment, the heating circuit 30 includes: a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a bidirectional controllable photocoupler OC1 and a bidirectional thyristor D; a first end of the fourth resistor R4 is connected to the main control chip 10, and a second end thereof is connected to a first end of the bidirectional controllable optocoupler OC 1; a third end of the bidirectional controllable photoelectric coupler OC1 is connected with a first end of the fifth resistor R5, a fourth end of the bidirectional controllable photoelectric coupler OC1 is connected with a first end of the bidirectional controllable silicon D, and a second end of the bidirectional controllable photoelectric coupler OC1 is grounded GND; the second end of the bidirectional controllable silicon D is connected with the second end of the fifth resistor R5 and the second end of the sixth resistor R6, the third end of the bidirectional controllable silicon D is connected with an external power supply zero line N, and the first end of the sixth resistor R6 is connected with an external power supply live line L.
It should be noted that the bidirectional controllable photocoupler OC1 is used for converting the electrical signal output by the main control chip 10 into an optical signal and then into an electrical signal. The bidirectional controllable photocoupler OC1 can be a photocoupler with the model number MOC 3021. The triac D is an element for detecting a zero point signal of the alternating current. The second end of the bidirectional thyristor D is connected with an external power supply live wire L, the third end of the bidirectional thyristor D is connected with an external power supply zero line N, when the alternating current passes zero, diodes which are conducted inside the bidirectional thyristor D are different, the zero point signal of the alternating current needs to be determined, the east direction of the bidirectional thyristor D is determined, and the heating assembly is connected with the alternating current to heat water in the heater. The heating component may be a heating wire.
In a specific implementation, the main control chip 10 may output a high-level heating signal or a low-level cut-off signal, which is input to the first end of the bidirectional controllable photocoupler OC1 through the fourth resistor R4, to control the on/off of the light emitting diode inside the bidirectional controllable photocoupler OC1, and further control the on/off of the bidirectional thyristor inside the bidirectional controllable photocoupler OC1, that is, the on/off between the third end and the fourth end. When switching on between the third end and the fourth end of two-way controllable optoelectronic coupler OC1, the alternating current can provide alternating current signal for triac D's first end, and then triac D can heat for the water in the heater according to the direction of switching on of the definite alternating current of zero signal.
In the present embodiment, the reset circuit 40 includes: a seventh resistor R7, an eighth resistor R8, a ninth resistor R9 and a photocoupler OC 2; wherein, the first end of seventh resistance R7 is connected with second power VCC2, the second end with eighth resistance R8 the second end and optoelectronic coupler OC 2's first end is connected, optoelectronic coupler OC 2's second end with eighth resistance R8's first end with be connected with casing CH, optoelectronic coupler OC 2's third end with ninth resistance R9's second end and main control chip 10 are connected, optoelectronic coupler OC 2's fourth end ground GND, ninth resistance R9's first end is connected with first power VCC 1.
It should be noted that, a first end of the photocoupler OC2 is connected to the second power source VCC2 through the seventh resistor R7, and when the second power source VCC2 stops supplying power, the first power source VCC1 may provide the reset signal to the control chip 10 through the ninth resistor R9.
In a specific implementation, when the heating circuit 30 is in a heating state, the second power VCC2 provides a voltage to the first terminal of the opto-coupler OC2 through the seventh resistor R7, the first terminal and the second terminal of the opto-coupler OC2 are connected, and further the third terminal and the fourth terminal of the opto-coupler OC2 are connected, and at this time, the first power VCC1 flows to the ground GND through the ninth resistor R9 and the third terminal and the fourth terminal of the opto-coupler OC 2. When the temperature of the water in the heater reaches the set appropriate temperature, the second power supply VCC2 stops supplying power, at this time, the third end and the fourth end of the photoelectric coupler OC2 are in a cut-off state, and the first power supply VCC1 provides a high-level reset signal for the main control chip 10 through the ninth point resistor R9.
In this embodiment, the water tank detection circuit 50 includes: the water tank detection chip U2, a tenth resistor R10, an eleventh resistor R11 and a first capacitor C1; wherein, the first end of the water tank detection chip U2 with the second end of the tenth resistance R10 and the first end of the eleventh resistance R11 are connected, the first end of the tenth resistance R10 with the first power VCC1 is connected, the second end of the water tank detection chip U2 with the second end ground GND of the first capacitance C1, the second end of the eleventh resistance R11 with the first end of the first capacitance C1 and the main control chip 10 are connected.
The tank detection chip U2 is a chip for detecting the remaining amount of water in the tank. The water tank detection chip U2 can detect the inside resistance of chip U2 according to the surplus adjustment water tank of water in the water tank, sends the water yield information in the water tank to main control chip 10 through the partial pressure to first power VCC 1.
In a specific implementation, the first power VCC1 is divided into two parallel branches after passing through the tenth resistor R10, one branch flows to the ground GND through the water tank detection chip U2, and the other branch flows to the main control chip 10 through the eleventh resistor R11. After the water tank detection chip U2 detects the water amount, the water amount may be divided by changing the internal resistance, for example, if the more the water amount in the water tank is set, the larger the internal resistance of the water tank detection chip U2 is, the smaller the current passing through the branch is, the larger the current passing through the eleventh resistor R11 is, the water amount information in the water tank is determined by the water amount information in direct proportion to the current magnitude information flowing to the main control chip 10, and of course, if the more the water amount in the water tank is set, the smaller the internal resistance of the water tank detection chip U2 is, and similarly, the water amount information in the water tank may be determined by the inverse proportion of the water amount information and the current magnitude information flowing to the main control chip 10. The first capacitor C1 is an isolation capacitor, and can effectively isolate the current flowing to the main control chip 10 from the ground.
In the present embodiment, a heating and thermal insulation circuit is provided, which detects the temperature in the heater in real time through a temperature detection circuit 20, and sends the detected current temperature information to a main control chip 10; the main control chip 10 compares the voltage or current parameter in the current temperature information with a preset reference voltage or current, generates a heating signal when the voltage or current parameter is smaller than the preset reference voltage or current, and sends the heating signal to the heating circuit 30; the heating circuit 30 heats the water in the heater upon receiving the heating signal. The present embodiment is through carrying out real-time detection to the current temperature information of water in the heater to the voltage or current parameter when current temperature information satisfies when predetermineeing reference voltage or electric current to the water in the heater stop heating and make it keep at suitable temperature, protect the circuit through overtemperature prote circuit 60, and detect the water yield in the water tank through water tank detection circuitry, avoid the water yield not enough, can be timely for infusing the water that the milk powder provided the temperature is suitable.
In order to achieve the above object, the present invention further provides a heating and thermal insulating device, which includes the heating and thermal insulating circuit as described above. The specific structure of the heating and heat-preserving circuit refers to the above embodiments, and since the heating and heat-preserving device adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
In order to achieve the above object, the present invention further provides a heating and thermal insulating system, which includes the heating and thermal insulating device as described above. The specific structure of the heating and heat-preserving device refers to the above-mentioned embodiments, and since the heating and heat-preserving system adopts all the technical solutions of all the above-mentioned embodiments, all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are at least achieved, and are not repeated herein. In addition, the heating and heat preservation system also comprises an infrared sensor, after the water with the proper temperature is provided for the milk powder brewing, the infrared temperature sensor can detect the temperature of the milk in the milk bottle in real time, and prompt when the temperature of the milk in the milk bottle is at the optimal temperature, so that the temperature of the milk drunk by the baby is the healthiest temperature and the safest temperature.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only 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, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should be considered to be absent and not within the protection scope of the present invention.
Claims (10)
1. A heating and thermal insulating circuit, comprising: the temperature detection circuit comprises a main control chip, a temperature detection circuit and a heating circuit;
the main control chip is respectively connected with the temperature detection circuit and the heating circuit;
the temperature detection circuit is used for detecting the temperature in the heater in real time and sending the detected current temperature information to the main control chip;
the main control chip is used for comparing the voltage or current parameter in the current temperature information with a preset reference voltage or current, generating a heating signal when the voltage or current parameter is smaller than the preset reference voltage or current, and sending the heating signal to the heating circuit;
the heating circuit is used for heating the water in the heater when receiving the heating signal.
2. The heating and soak circuit of claim 1 wherein the heating and soak circuit further comprises: a reset circuit;
the reset circuit is connected with the main control chip;
the reset circuit is used for generating a reset signal when the voltage or current parameter meets a preset reference voltage and sending the reset signal to the main control chip;
the main control chip is further used for generating a cut-off signal when receiving the reset signal and sending the cut-off signal to the heating circuit;
the heating circuit is also used for stopping heating the water in the heater when receiving the cut-off signal.
3. The heating and soak circuit of claim 2 wherein the heating and soak circuit further comprises: a water tank detection circuit;
the water tank detection circuit is connected with the main control chip;
the water tank detection circuit is used for detecting the water amount in the water tank to obtain water amount information and sending the water amount information to the main control chip;
the main control chip is further used for generating alarm information when the water amount information does not meet the preset condition, and sending the alarm information to external alarm equipment for alarming.
4. The heating and soak circuit of claim 3 wherein the heating and soak circuit further comprises: an overtemperature protection circuit;
the overtemperature protection circuit is connected with the main control chip;
the overtemperature protection circuit is used for generating a power-off signal when the voltage or current parameter is greater than a preset reference voltage or current so as to power off the heating and heat-preserving circuit.
5. The heating and maintaining circuit of claim 4, wherein the temperature sensing circuit comprises: the temperature detection device comprises a temperature detection chip, a first resistor, a second resistor and a third resistor;
the first end of the first resistor is connected with a first power supply, the second end of the first resistor is connected with the first end of the temperature detection chip, the second end of the temperature detection chip is respectively connected with the first end of the second resistor and the first end of the third resistor, the second end of the third resistor is connected with the main control chip, and the second end of the second resistor is grounded.
6. The heating and soak circuit of claim 5 wherein the heating circuit comprises: the fourth resistor, the fifth resistor, the sixth resistor, the bidirectional controllable photoelectric coupler and the bidirectional controllable silicon;
the first end of the fourth resistor is connected with the main control chip, and the second end of the fourth resistor is connected with the first end of the bidirectional controllable photoelectric coupler;
the third end of the bidirectional controllable photoelectric coupler is connected with the first end of the fifth resistor, the fourth end of the bidirectional controllable photoelectric coupler is connected with the first end of the bidirectional controllable silicon, and the second end of the bidirectional controllable photoelectric coupler is grounded;
the second end of the bidirectional controllable silicon is connected with the second end of the fifth resistor and the second end of the sixth resistor, the third end of the bidirectional controllable silicon is connected with a zero line of an external power supply, and the first end of the sixth resistor is connected with a live line of the external power supply.
7. The heat and soak circuit of claim 6 wherein the reset circuit comprises: the photoelectric coupler comprises a seventh resistor, an eighth resistor, a ninth resistor and a photoelectric coupler;
the first end of the seventh resistor is connected with the second power supply, the second end of the seventh resistor is connected with the second end of the eighth resistor and the first end of the photoelectric coupler, the second end of the photoelectric coupler is connected with the first end of the eighth resistor and the shell, the third end of the photoelectric coupler is connected with the second end of the ninth resistor and the main control chip, the fourth end of the photoelectric coupler is grounded, and the first end of the ninth resistor is connected with the first power supply.
8. The heating and maintaining circuit of claim 7, wherein the tank detection circuit comprises: the water tank detection chip, the tenth resistor, the eleventh resistor and the first capacitor;
the first end of the water tank detection chip is connected with the second end of the tenth resistor and the first end of the eleventh resistor, the first end of the tenth resistor is connected with the first power supply, the second end of the water tank detection chip is grounded with the second end of the first capacitor, and the second end of the eleventh resistor is connected with the first end of the first capacitor and the main control chip.
9. A heating and holding device, characterized in that the heating and holding device comprises a heating and holding circuit according to any one of claims 1-8.
10. A heating and holding system comprising the heating and holding apparatus of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121508679.7U CN215777315U (en) | 2021-07-02 | 2021-07-02 | Heating and heat preservation circuit, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121508679.7U CN215777315U (en) | 2021-07-02 | 2021-07-02 | Heating and heat preservation circuit, device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215777315U true CN215777315U (en) | 2022-02-11 |
Family
ID=80180384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121508679.7U Active CN215777315U (en) | 2021-07-02 | 2021-07-02 | Heating and heat preservation circuit, device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215777315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115468312A (en) * | 2022-09-07 | 2022-12-13 | 深圳市全智芯科技有限公司 | Constant temperature control device and instant water heater |
-
2021
- 2021-07-02 CN CN202121508679.7U patent/CN215777315U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115468312A (en) * | 2022-09-07 | 2022-12-13 | 深圳市全智芯科技有限公司 | Constant temperature control device and instant water heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215777315U (en) | Heating and heat preservation circuit, device and system | |
| CN105042863B (en) | A kind of detection device and method of water heater temperature | |
| CN202630236U (en) | Constant temperature control device for indoor electric heater | |
| CN110268206A (en) | Electric heater unit, corresponding heating circuit and the method for managing temperature | |
| CN104783654A (en) | Intelligent heat preservation electric kettle | |
| CN208108455U (en) | Electromagnetic heater for hot spring | |
| CN201845243U (en) | Temperature controller | |
| CN113498969A (en) | Heating and heat preservation circuit, device and system | |
| CN103616922B (en) | A kind of glass electric kettle power control module | |
| CN103576723B (en) | A kind of glass electric kettle temperature control modules | |
| CN101847022A (en) | Temperature controller | |
| CN208687998U (en) | Leveled heating water tank and water heater | |
| CN209690734U (en) | A kind of heating air control circuit | |
| CN101341795B (en) | Water heater for aquarium | |
| CN208031367U (en) | A kind of inductive thermal water bag collecting spontaneous heating and temperature display function | |
| CN103546995B (en) | Constant power electric calorifie installation | |
| CN102681570A (en) | Water dispenser control circuit and control method | |
| CN109323445A (en) | A kind of hydroelectric separation instant-heating type hot water apparatus and hot-water heating system | |
| CN206713087U (en) | A kind of electric calorifie installation control circuit | |
| CN106016438B (en) | Household water system with separate control | |
| CN108670026A (en) | Kettle with prompting function | |
| CN103744453A (en) | Inverter temperature control system and inverter output power control method based on temperature control | |
| CN108282916A (en) | Power supply high-temperature protection method, circuit and LED illuminator | |
| CN212256121U (en) | Temperature control protection device for PTC and NTC heating wire | |
| CN204600297U (en) | A kind of insulation bathtub |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |