CN220673949U - Heating circuit, heater and heating system - Google Patents

Abstract

The utility model discloses a heating circuit, a heater and a heating system. The heating circuit includes: the device comprises a main control module, a first heating module, a second control module, a second heating module and a power supply module; the power supply module is respectively and electrically connected with the first heating module and the second heating module; the main control module is respectively and electrically connected with the first control module and the second control module; the first control module is respectively and electrically connected with the main control module and the first heating module; the second control module is respectively and electrically connected with the main control module and the second heating module; the first heating module and the second heating module are respectively used for generating heat to heat water flow, wherein the heating temperature of the second heating module is greater than that of the first heating module. The water flow heating of control different gears can be realized through the heating circuit, and the heating temperature of water flow is accurately controlled, so that the effect of controlling the water flow to be heated to proper temperature and time is achieved.

Description

Heating circuit, heater and heating system

Technical Field

The utility model relates to the technical field of heating, in particular to a heating circuit, a heater and a heating system.

Background

In many domestic situations, such as water heater, kitchen and toilet, floor heating, hot water storage tank, etc., hot water is needed, and water flow is often needed to be heated.

However, in the current technology of heating water flow, a temperature is usually used for heating, in some situations, users need to precisely control the heating of water flow in some situations, that is, different temperatures are used for heating water flow, so that the current heating device for heating by using a temperature obviously cannot meet the needs of such users.

Accordingly, the prior art has yet to be improved and developed.

Disclosure of Invention

The utility model aims to solve the technical problems that the heater in the prior art cannot heat water flow at different temperatures.

The technical scheme adopted for solving the technical problems is as follows: there is provided a heating circuit comprising: the device comprises a main control module, a first heating module, a second control module, a second heating module and a power supply module; the power supply module is respectively and electrically connected with the first heating module and the second heating module, and is used for providing alternating current power supply for the heating circuit; the main control module is respectively and electrically connected with the first control module and the second control module, and is used for selectively opening or closing the first control module and also used for selectively opening or closing the second control module; the first control module is respectively and electrically connected with the main control module and the first heating module, and is used for starting the first heating module; the second control module is respectively and electrically connected with the main control module and the second heating module, and is used for starting the second heating module; the first heating module and the second heating module are respectively used for generating heat to heat water flow, wherein the heating temperature of the second heating module is greater than that of the first heating module.

According to the utility model, the main control module is a first chip, the first control module is a first contactor, and the second control module is a second contactor; the coil of the first contactor is connected with the first chip through a connector, and the normally open switch of the first contactor is connected with the first heating module; the coil of the second contactor is connected with the first chip through a connector, and the normally open switch of the second contactor is connected with the first heating module.

The utility model further provides that the method further comprises the following steps: the coil of the third contactor is connected with the coil of the first contactor and the coil of the second contactor respectively; the normally open switch of the third contactor is connected with the normally open switch of the first contactor and the normally open switch of the second contactor respectively.

The utility model further provides that the method further comprises the following steps: a mechanical temperature controller protection switch; the other end of the mechanical temperature controller protection switch is connected with the coil of the third contactor.

The utility model further provides that the method further comprises the following steps: and one end of the temperature breaker is connected with the normally open switch of the third contactor through a deconcentrator, and the other end of the temperature breaker is respectively connected with the coil of the third contactor and the coil of the second contactor.

The utility model further provides that the method further comprises the following steps: the temperature detection sensor is electrically connected with the main control module, and is used for detecting the temperature of water outlet and sending detection signals to the main control module.

Based on the same inventive concept, the utility model also provides a heater, which is provided with a water inlet and a water outlet, and further comprises: a heating circuit as described above; the heating circuit is used for heating the water flow input from the water inlet and output from the water outlet.

Based on the same inventive concept, the utility model also provides a heating system comprising the heater.

The beneficial effects are that: the utility model discloses a heating circuit, a heater and a heating system. The main control module in the heating circuit is respectively and electrically connected with the first control module and the second control module, the first control module is respectively and electrically connected with the main control module and the first heating module, and the first control module is used for starting the first heating module; the second control module is respectively and electrically connected with the main control module and the second heating module, and the second control module is used for starting the second heating module. Thus, the main control module can correspondingly control the first control module and the first control module to be opened and closed. The heating circuit can realize heating control of three gears, water flow heating of different gears can be controlled through the heating circuit, and the effect of precisely controlling the heating temperature of water flow and controlling the time of water flow heating to a proper temperature is achieved.

Drawings

Fig. 1 is a schematic block diagram of a heating circuit according to an embodiment of the present utility model.

Fig. 2 is a specific circuit configuration diagram of a heating circuit according to an embodiment of the present utility model.

Fig. 3 is a schematic diagram of an external structure of a heating structure according to an embodiment of the present utility model.

Fig. 4 is a sectional view of the heating structure of fig. 3 in the P direction of the first heating module and the second heating module.

Fig. 5 is an enlarged view of a portion of the first heating module depicted in fig. 4.

Fig. 6 is an enlarged view of a portion of the second heating module depicted in fig. 4.

Fig. 7 is a schematic structural diagram of a heating system according to an embodiment of the present utility model.

Reference numerals illustrate: 10. a main control module; 20. a first control module; 30. a first heating module; 40. a second control module; 50. a second heating module; 60. a power module; 70. a PCB board; 100. a heater; 200. a blower; 300. a control panel; 400. a domestic hot water switching valve; 500. an external circulation pump; 600. a solar energy device; A. a water inlet; B. a water outlet; KM1, a first contactor; KM2, a second contactor; KM3, third contactor; u1, a first chip; CN1, first connector; CN2, second connector; CN3, third connector; ATCO, mechanical thermostat protection switch; TCO, temperature breaker; RT1, a temperature detection sensor; RT2, liquid refrigerant temperature sensor; RT3, gas refrigerant temperature sensor; RT4, a water inlet temperature sensor; RT5, a total outlet water temperature sensor; TB, deconcentrator.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

In the following description reference is made to "some embodiments" which describe a subset of all possible embodiments, but it will be understood that "some embodiments" may be the same subset or different subset of all possible embodiments and may be combined with each other without conflict to make the objects, technical solutions and advantages of the present utility model clear and clear, the present utility model will be further described in detail below with reference to the accompanying drawings and by way of example. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The water flow heating technology of (2) generally adopts only a single temperature for heating, and cannot meet the requirement of some users on accurate water temperature control. In certain situations, a user may need to use different water temperature heats according to different needs. Therefore, to meet these specific requirements, new techniques need to be introduced to achieve multi-temperature heating control. For example, when a user wants to eat rice at night to take a bath, in the current common electric water heater, the situation that the water temperature is not heated after eating rice or the water is heated for a long time and the temperature is kept and reduced is often caused, and the user cannot use the electric water heater in the most comfortable water temperature. There is a need for a heater that can precisely control the heating temperature to control the time that the water stream is heated to the proper temperature.

In order to solve the problems of the prior art, the present utility model provides a heating circuit, a heater, and a heating system, which are described below with reference to the specific embodiments and fig. 1-5. The heating circuit, the heater and the heating system can be applied to water flow heating.

Referring to fig. 1 in combination, the present utility model provides a heating circuit, which includes: the device comprises a main control module 10, a first control module 20, a first heating module 30, a second control module 40, a second heating module 50 and a power module 60; the power module 60 is electrically connected to the first heating module 30 and the second heating module 50, respectively, and the power module 60 is configured to provide an ac power for the heating circuit; the main control module 10 is electrically connected with the first control module 20 and the second control module 40 respectively, the main control module 10 is used for selectively opening or closing the first control module 20, and the main control module 10 is also used for selectively opening or closing the second control module 40; the first control module 20 is electrically connected with the main control module 10 and the first heating module 30, respectively, and the first control module 20 is used for starting the first heating module 30; the second control module 40 is electrically connected to the main control module 10 and the second heating module 50, respectively, and the second control module 40 is used for starting the second heating module 50; the first heating module 30 and the second heating module 50 are respectively configured to generate heat to heat water, where the heat generating temperature of the second heating module 50 is greater than the heat generating temperature of the first heating module 30.

Specifically, the first heating module 30 and the second heating module 50 are disposed in the heating circuit, and both heating modules can heat the water flow. And the first control module 20 and the second control module 40 can be controlled to be turned on and off by the main control module 10, the first control module 20 can correspondingly control the first heating module 30 to be turned on and off, and the second control module 40 can correspondingly control the second heating module 50 to be turned on and off. The heat generation temperature of the second heating module 50 and the heat generation temperature of the first heating module 30 are different. The power supply module 60 is a three-phase four-wire ac power supply.

In this way, the main control module 10 can correspondingly control the first control module 20 and the first control module 20 to be turned on and turned off. The heating circuit can realize heating control of three gears, namely the main control module 10 independently starts the first control module 20 to independently heat the water flow of the lowest temperature gear which is independently heated by the first heating module 30; the main control module 10 independently starts the second control module 40 to heat the water flow of the intermediate temperature gear which is independently heated by the second heating module 50; the main control module 10 simultaneously starts the first control module 20 and the second control module 40 to heat the water flow of the highest temperature gear which is heated by the first control module 20 and the second heating module 50 simultaneously.

Therefore, a user can control the water flow with different gears to heat through the heating circuit, and the effect of precisely controlling the heating temperature of the water flow to control the time of heating the water flow to a proper temperature is achieved.

Further, in one possible implementation manner, the heating circuit further includes a temperature detection sensor RT1, the temperature detection sensor RT1 is electrically connected to the main control module 10, and the temperature detection sensor RT1 is configured to detect a temperature of the water and send a detection signal to the main control module 10.

Specifically, in the heating circuit, the temperature detection sensor RT1 is provided at the outlet of the water flow to detect the outlet water temperature. The heating gear can be adjusted by the outlet water temperature.

For example, when the temperature detection sensor RT1 detects that the outlet water temperature is less than the set value within the set time, the temperature detection sensor RT1 may send a detection signal to the main control module 10, and the main control module 10 may send a signal to adjust the heating gear of the heating circuit; or when the temperature detection sensor RT1 detects that the outlet water temperature is greater than the set value within the set time, the heating gear of the heating circuit can be adjusted down by the main control module 10.

The specific circuit structure of the heating circuit will be described with reference to fig. 1 and 2.

Further, in one possible implementation manner, the main control module 10 is a first chip U1, the first control module 20 is a first contactor KM1, and the second control module 40 is a second contactor KM2; the coil of the first contactor KM1 is connected with the first chip U1 through a first connector CN1, and a normally open switch of the first contactor KM1 is connected with the first heating module 30; the coil of the second contactor KM2 is connected to the first chip U1 through a first connector CN1, and the normally open switch of the second contactor KM2 is connected to the first heating module 30.

Further, in one possible implementation, the heating circuit further includes: third contactor KM3, mechanical temperature controller protection switch ATCO, temperature circuit breaker TCO and temperature detection sensor RT1. The coil of the third contactor KM3 is connected with the coil of the first contactor KM1 and the coil of the second contactor KM2 respectively; the normally closed switch of the third contactor KM3 is connected to the normally open switch of the first contactor KM1 and the normally open switch of the second contactor KM2, respectively. The other end of the mechanical temperature controller protection switch ATCO is connected with a coil of the third contactor KM 3. One end of the temperature breaker TCO is connected to the normally closed switch of the third contactor KM3 through the deconcentrator TB, and the other end of the temperature breaker TCO is connected to the coil of the third contactor KM3 and the coil of the second contactor KM2, respectively.

Specifically, the first chip U1 is a chip with a model APM32, and the first chip U1 is disposed on the PCB 70 as the main control module 10; also, a second connector CN2 and a third connector CN3 are further provided on the PCB board 70. The temperature detection sensor RT1 is connected with the main control chip through the second connector CN2, so that the temperature detection sensor RT1 can detect the outlet water temperature and send a detection signal to the first chip U1. In addition, a liquid refrigerant temperature sensor RT2, a gas refrigerant temperature sensor RT3, a water inlet temperature sensor RT4 and a total water outlet temperature sensor RT5 are also provided in the heating circuit, and are all connected with the first chip U1 through the second connector CN2, and send detection signals to the first chip U1.

Further, the function of the step heating is achieved in the present application by the arrangement of the contactors, specifically, the first and second contactors KM1 and KM2 are used to control the on or off of the first and second heating modules 30 and 50, respectively.

The first heating module 30 is a heating module with a power of 3KW, and the second heating module 50 is a heating module with a power of 6 KW. The first heating module 30 is directly connected with the normally open switch of the first contactor KM1, so that the first heating module 30 can be started by closing the normally open switch of the first contactor KM 1; the second heating module 50 is directly connected to the normally open switch of the second contactor KM2, so that closing the normally open switch of the second contactor KM2 can start the second heating module 50.

Moreover, the coil of the first contactor KM1 is also connected to the first chip U1 through the first connector CN 1; the coil of the second contactor KM2 is also connected to the first chip U1 via the second connector CN 2. In this case, the first chip U1 controls the on and off of the first and second heating modules 30 and 50 by controlling the first and second contactors KM1 and KM 2.

Therefore, in the heating circuit, heating of three gear positions can be realized: 1. independently turning on heating of the first heating module 30 with 3KW power; 2. independently turning on the heating of the second heating module 50 with 6KW power; 3. and simultaneously, the heating of the first heating module 30 and the second heating module 50 with 9KW power is started.

And, the first chip U1 may turn on heating by receiving the detection signal of the temperature detection sensor RT1. For example, when the temperature of the water is less than the set value and the temperature detection sensor RT1 detects the water temperature within the set time, the first chip U1 may regulate the heating module to heat. Firstly, the first chip U1 controls the first contactor KM1 to close a normally open switch thereof, so that after the first heating module 30 is started to enter a first-gear heating operation set time, the temperature detection sensor RT1 continues to detect the values of the water outlet temperature and the set temperature; if the set temperature cannot be reached yet, the first chip U1 controls the first contactor KM1 to close the normally open switch thereof to close the first heating module 30, controls the second contactor KM2 to close the normally open switch thereof to open the second heating module 50 to enter the second-gear heating, and operates until the set time is reached, and the water outlet temperature is acquired through the temperature detection sensor RT 1; if the set temperature cannot be reached after the first chip U1 is restarted, the normally open switch of the first contactor KM1 and the normally open switch of the second contactor KM2 are controlled to be simultaneously opened, so that the first heating module 30 and the second heating module 50 are simultaneously opened to enter a third gear for heating operation to reach the set temperature.

In this way, the heating operation of a plurality of gears can be realized, and the heating temperature which is not achieved by the normal heating system can be realized by the combined heating mode of the first heating module 30 and the second heating module 50.

In addition, a protection module is further arranged in the heating circuit in the application, and the third contactor KM3, the mechanical temperature controller protection switch ATCO and the temperature circuit breaker TCO jointly form the protection module so as to protect the whole heating circuit.

Specifically, the normally closed switch of the third contactor KM3 is connected to the normally open switch of the first contactor KM1 and the normally open switch of the second contactor KM2, respectively, and the normally closed switch of the third contactor KM3 forms a main path in parallel connection with the normally open switch of the first contactor KM1 and the normally open switch of the second contactor KM2, that is, the normally closed switch of the third contactor KM3 may be turned off to close the first heating module 30 and the second heating module 50.

Moreover, the coil of the third contactor KM3 is connected to the mechanical temperature controller protection switch ATCO, and when the temperature of the water heated by the water temperature is too high or other emergency occurs, the mechanical temperature controller protection switch ATCO may transmit a signal to the coil of the third contactor KM3 to disconnect the normally closed switch of the third contactor KM3 to close the first heating module 30 and the second heating module 50.

In addition, the setting of temperature circuit breaker TCO in the protection module also plays the overheated guard action, the one end of temperature circuit breaker TCO passes through the deconcentrator with the normally closed switch of third contactor KM3 is connected, the other end of temperature circuit breaker TCO with mechanical temperature controller protection switch ATCO is connected. The temperature circuit breaker TCO will be used to break the circuit for the temperature in the heating circuit and to break the circuit when the temperature exceeds a predetermined threshold, thereby preventing the fire or other safety problems caused by the overheating of the equipment and achieving the effect of protecting the heating circuit.

Based on the same inventive concept, the utility model also provides a heater 100, wherein the heater 100 is provided with a water outlet B and a water inlet A, and the heater 100 further comprises the heating circuit. As shown in fig. 3, 4, 5 and 6, the water flow to be heated enters from the water inlet a and is heated and then is output from the water outlet B. The first heating module 30 is specifically composed of 3 heating strips with power of 1 KW; likewise, the second heating module 50 is composed of 3 heating strips with a power of 2 KW.

Based on the same inventive structure, the present utility model also provides a heating system including the heater 100 described above.

The heating system can be a heating system such as a water heater, a kitchen and bathroom, a ground heating system, a heat storage water tank and the like. The heating system is described herein as a heating system of a water heater. Particularly as shown in fig. 7.

The heating system comprises a fan 200 arranged outdoors, a control panel 300 arranged indoors, the heater 100, a household hot water switching valve 400, an external circulating pump 500 and a solar device 600.

When the user heats the water temperature in the heating system, the control panel 300 can control the heating. And the fan 200 can be started to heat when defrosting is needed or the temperature of the water outlet is insufficient.

It is to be understood that the utility model is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.

Claims (8)

1. A heating circuit for performing water flow heating, comprising:

the device comprises a main control module, a first heating module, a second control module, a second heating module and a power supply module;

the power supply module is respectively and electrically connected with the first heating module and the second heating module, and is used for providing alternating current power supply for the heating circuit;

the main control module is respectively and electrically connected with the first control module and the second control module, and is used for selectively opening or closing the first control module and also used for selectively opening or closing the second control module;

the first control module is respectively and electrically connected with the main control module and the first heating module, and is used for starting the first heating module;

the second control module is respectively and electrically connected with the main control module and the second heating module, and is used for starting the second heating module;

the first heating module and the second heating module are respectively used for generating heat to heat water flow, wherein the heating temperature of the second heating module is greater than that of the first heating module.

2. The heating circuit of claim 1, wherein the main control module is a first chip, the first control module is a first contactor, and the second control module is a second contactor;

the coil of the first contactor is connected with the first chip through a connector, and the normally open switch of the first contactor is connected with the first heating module;

the coil of the second contactor is connected with the first chip through a connector, and the normally open switch of the second contactor is connected with the first heating module.

3. The heating circuit of claim 2, further comprising: the coil of the third contactor is connected with the coil of the first contactor and the coil of the second contactor respectively;

the normally open switch of the third contactor is connected with the normally open switch of the first contactor and the normally open switch of the second contactor respectively.

4. A heating circuit according to claim 3, further comprising: a mechanical temperature controller protection switch; the other end of the mechanical temperature controller protection switch is connected with the coil of the third contactor.

5. A heating circuit according to claim 3, further comprising: and one end of the temperature breaker is connected with the normally open switch of the third contactor through a deconcentrator, and the other end of the temperature breaker is respectively connected with the coil of the third contactor and the coil of the second contactor.

6. The heating circuit of claim 1, further comprising: the temperature detection sensor is electrically connected with the main control module, and is used for detecting the temperature of water outlet and sending detection signals to the main control module.

7. A heater having a water inlet and a water outlet, further comprising: a heating circuit as claimed in any one of claims 1 to 6;

the heating circuit is used for heating the water flow input from the water inlet and output from the water outlet.

8. A heating system comprising the heater of claim 7.