CN220754341U - Heating protection circuit, heater and heating system - Google Patents
Heating protection circuit, heater and heating system Download PDFInfo
- Publication number
- CN220754341U CN220754341U CN202322321333.1U CN202322321333U CN220754341U CN 220754341 U CN220754341 U CN 220754341U CN 202322321333 U CN202322321333 U CN 202322321333U CN 220754341 U CN220754341 U CN 220754341U
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- temperature
- protection circuit
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 230
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 238000001514 detection method Methods 0.000 claims description 16
- 239000008236 heating water Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 238000003303 reheating Methods 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses a heating protection circuit, a heater and a heating system. The heating protection circuit includes: the device comprises a power supply module, a first heating protection module and a second heating protection module; the first heating protection module is used for detecting the water outlet temperature, and the circuit is disconnected when the water outlet temperature is greater than or equal to a first set temperature; the second heating protection module is connected with the power supply module through the deconcentrator, and is also connected with the first heating protection module and disconnected when the temperature of the discharged water is greater than or equal to a second set temperature; the power supply module is used for providing alternating current power supply for the heating protection circuit; wherein the second set temperature is greater than the first set temperature. The first heating protection module or the second heating protection module is disconnected to break the whole heating protection circuit so as to achieve the effect of realizing the heating protection effect.
Description
Technical Field
The utility model relates to the technical field of heating, in particular to a heating protection 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, the current water heating device generally has the characteristics of large electric heating power and rapid heat generation and high temperature, so that surrounding components are easily damaged when overheated, but some water heating devices in the prior art lack an overheat protection device, are easy to generate safety problems, and therefore, the heating device needs to be subjected to temperature protection.
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 heating device in the prior art lacks temperature protection and is easy to generate safety problems.
The technical scheme adopted for solving the technical problems is as follows: there is provided a heating protection circuit including: the device comprises a power supply module, a first heating protection module and a second heating protection module; the first heating protection module is connected with the second heating protection module, and is used for detecting the water outlet temperature, disconnecting the heating protection circuit when the water outlet temperature is greater than or equal to a first set temperature, and resetting and communicating the heating protection circuit when the water outlet temperature is less than the set temperature; the second heating protection module is connected with the power supply module through a deconcentrator, is also connected with the first heating protection module, and is used for detecting the water outlet temperature, and the heating protection circuit is disconnected when the water outlet temperature is greater than or equal to a second set temperature; the power supply module is used for providing alternating current power supply for the heating protection circuit; wherein the second set temperature is greater than the first set temperature.
The utility model further provides that the method further comprises the following steps: the heating control device comprises a main control chip, a heating module and a heating control module; the main control chip is connected with the other end of the heating control module and is used for controlling the heating control module to be turned on and off; the heating module is respectively connected with one end of the power supply module and one end of the heating control module, and is used for heating water flow; the heating control module is used for controlling the opening and closing of the heating module.
The utility model further provides that the method further comprises the following steps: the water outlet temperature detection sensor is connected with the main control chip and is used for detecting the water outlet temperature and sending detection signals to the main control chip when the water outlet temperature is higher than a third set temperature.
According to a further arrangement of the utility model, the third set temperature is less than the first set temperature.
According to a further arrangement of the utility model, the first heating protection module comprises: from reset temperature controller and first contactor, the second heating protection module includes: manually resetting the temperature controller; one end of the manual reset temperature controller is connected with the normally closed switch of the first contactor through the deconcentrator, and the other end of the manual reset temperature controller is connected with one end of the self-reset temperature controller; the other end of the self-resetting temperature controller is connected with the coil of the first contactor.
According to a further arrangement of the utility model, the heating control module comprises: a second contactor and a third contactor; the normally open switch of the second contactor and the normally open switch of the third contactor are respectively connected with the heating module; the coil of the second contactor and the coil of the third contactor are respectively connected with the coil of the first contactor, and the coil of the second contactor and the coil of the third contactor are also connected with the main control chip through a first connector.
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: such as the heating protection circuit described above.
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 protection circuit, a heater and a heating system. According to the utility model, the temperature of the water outlet can be detected through the first heating protection module and the second heating protection module, and when the temperature of the water outlet is higher than a certain temperature, the first heating protection module or the second heating protection module can be disconnected to break the whole heating protection circuit so as to switch off the heater, so that the effect of realizing the heating protection effect is achieved.
Drawings
Fig. 1 is a schematic diagram of a principle structure of a heater according to an embodiment of the present utility model.
Fig. 2 is a schematic block diagram of a heating protection circuit according to an embodiment of the present utility model.
Fig. 3 is a schematic diagram of a specific circuit structure of a heating protection circuit according to an embodiment of the present utility model.
Reference numerals illustrate: 10. a power module; 20. a first heating protection module; 30. a second heating protection module; 40. a wire divider; 50. a main control chip; 60. a heating control module; 70. a heating module; 71. a first heating assembly; 72. a second heating assembly; 80. a PCB board; u1, a first chip; A. a water inlet; B. a water outlet; KM1, a first contactor; KM2, a second contactor; KM3, third contactor; CN1, first connector; CN2, second connector; CN3, third connector; ATCO, self-resetting thermostat; TCO and manual reset temperature controller; 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.
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.
In many domestic scenarios, such as water heaters, kitchens and bathrooms, floor heating and hot water storage tanks, etc., hot water is an essential resource. However, existing water flow heating devices typically feature high electric heating power, rapid heating and high temperatures. These characteristics make it easy to damage surrounding components once overheating occurs. Meanwhile, some prior art water flow heating devices lack overheat protection devices, which may cause potential safety hazards. Therefore, it is necessary to protect the heating device from the temperature.
In order to solve the problems of the prior art, the present utility model provides a heating protection circuit and a heater, and the following description will refer to fig. 1-3 in conjunction with the specific embodiments. The heating protection circuit and the heater can be applied to water flow heating.
Referring to fig. 1, the present application provides a heater, which has a water inlet a and a water outlet, and further includes a heating protection circuit. When water flow heating is needed, water flow can enter the water inlet A for heating and flow out of the water outlet B, so that the water flow is heated.
Referring to fig. 2 in combination, the present application further provides a heating protection circuit for performing heating protection, which includes: a power supply module 10, a first heating protection module 20, and a second heating protection module 30; the first heating protection module 20 is connected with the second heating protection module 30, and the first protection module is used for detecting the water outlet temperature, disconnecting the heating protection circuit when the water outlet temperature is greater than or equal to a first set temperature, and resetting and communicating the heating protection circuit when the water outlet temperature is less than the set temperature. The second heating protection module 30 is connected with the power module 10 through a deconcentrator 40, the second heating protection module 30 is further connected with the first heating protection module 20, the second heating protection module 30 is used for detecting a water outlet temperature, and the heating protection circuit is disconnected when the water outlet temperature is greater than or equal to a second set temperature; the power module 10 is used for providing alternating current power for the heating protection circuit; wherein the second set temperature is greater than the first set temperature. The power module 10 may be a three-phase four-wire ac power supply.
Specifically, a plurality of heating protection modules are disposed in the heating protection circuit, that is, the first heating protection module 20 and the second heating protection module 30 can both detect the water outlet temperature, and when the water outlet temperature is higher than a certain temperature, the first heating protection module 20 or the second heating protection module 30 can be disconnected to break the whole heating protection circuit to close the heater, so that the heater can stop working to achieve the effect of realizing heating protection.
Also, since the first and second heating protection modules 20 and 30 have threshold temperatures preset in advance, that is, the first and second set temperatures, the user can set the threshold temperatures according to actual conditions. The first set temperature and the second set temperature are two different set temperatures, and the second set temperature is greater than the first set temperature, so that when the first heating protection module 20 is damaged and the circuit cannot be disconnected in time, the water flow temperature is increased, the second heating protection module 30 can also disconnect the circuit to protect the heater, and the effect of multiple protection on the heating of the heater can be achieved through the heating protection circuit.
Further, referring to fig. 1, the first heating protection module 20 and the second heating protection module 30 are connected to the vicinity of the water outlet B through detection pipes, so as to detect the outlet water temperature of the water flow.
Further, the heating protection circuit may further implement a heating function of the water flow, and in a possible implementation manner, the heating protection circuit further includes: the main control chip 50, the heating module 70, the heating control module 60 and the outlet water temperature detection sensor RT1; the main control chip 50 is connected with the other end of the heating control module 60, and the main control chip 50 is used for controlling the opening and closing of the heating control module 60; the heating module 70 is respectively connected with one end of the power module 10 and one end of the heating control module 60, and the heating module 70 is used for heating water flow; the heating control module 60 is used for controlling the on and off of the heating module 70; the water outlet temperature detection sensor RT1 is connected with the main control chip 50, and the water outlet temperature detection sensor RT1 is configured to detect a water outlet temperature and send a detection signal to the main control chip 50 when the water outlet temperature is greater than a third set temperature. The main control chip 50 may be a chip with a model number of APM 32.
Specifically, in this application, in addition to providing the first and second heat protection modules 20 and 30 to form a dual heat protection, another heavy heat protection is provided. That is, the outlet water temperature is detected by the outlet water temperature detecting sensor RT1, and the detected outlet water temperature is sent to the main control chip 50 connected to the outlet water temperature detecting sensor RT1, and when the outlet water temperature is greater than or equal to the third preset temperature, the main control chip 50 controls the heating control module 60 to be turned off so as to turn off the heating module 70. Thus, triple heating protection is formed in the heating protection circuit, and the effect of fully protecting the heater is achieved.
Moreover, the third set temperature is lower than the first set temperature, that is, the arrangement of the outlet water temperature detection sensor RT1 forms a first reheating protection in the heating and protecting circuit, and the first heating and protecting module 20 and the second heating and protecting module 30 form a second reheating protection and a third reheating protection in the heating and protecting circuit, respectively.
Wherein, the first heating protection module 20 resets and re-communicates with the heating protection circuit when detecting that the outlet water temperature is lower than the first set temperature; however, after the second heating protection module 30 turns off the heating protection circuit, even if the outlet water temperature is again less than the second set temperature, the second heating protection module 30 will not be turned on again to the heating protection circuit, but maintains the off state of the heating protection circuit, and requires the user to manually reset to be turned on again to re-turn on the heating protection circuit. That is, the first heating protection module 20 may be automatically reset, and the second heating protection module 30 may be manually reset.
Referring to fig. 2 and 3 in combination, a detailed circuit structure of the heating protection circuit is described below. As shown in fig. 3, in one possible embodiment, the main control chip 50 is disposed on a PCB board 80 and connected to the first connector CN1, the second connector CN2, and the third connector CN3, respectively. The first heat protection module 20 includes: from temperature controller ATCO and first contactor KM1 that resets, second heating protection module 30 includes: manually resetting TCO of the temperature controller; one end of the manual reset temperature controller TCO is connected with a normally closed switch of the first contactor KM1 through the deconcentrator 40, and the other end of the manual reset temperature controller TCO is connected with one end of the self-reset temperature controller ATCO; the other end of the self-resetting temperature controller ATCO is connected with a coil of the first contactor KM 1. The heating control module 60 includes: a second contactor KM2 and a third contactor KM3; the normally open switch of the second contactor KM2 and the normally open switch of the third contactor KM3 are respectively connected with the heating module 70; the coil of the second contactor KM2 and the coil of the third contactor KM3 are respectively connected with the coil of the first contactor KM1, and the coil of the second contactor KM2 and the coil of the third contactor KM3 are also connected with the main control chip 50 through a first connector CN 1.
For the heating module 70, the heating module 70 includes: a first heating assembly 71 and a second heating assembly 72; the first heating component 71 is connected with a normally open switch of the second contactor KM2 to realize the control of the second contactor KM2 on the first heating component 71; the second heating component 72 is connected with a normally open switch of the third contactor KM3, so as to control the second heating component 72 by the third contactor KM 3. Therefore, the second contactor KM2 and the third contactor KM3 are used to control the first heating component 71 and the second heating component 72 to be turned on or turned off, respectively, and the heating module 70 is configured to implement the step heating function of the heating protection circuit.
The first heating component 71 is a heating component with a power of 3KW, the second heating component 72 is a heating component with a power of 6KW, and the heating protection circuit can realize the stepped heating of 3KW, 6KW and 9 KW. 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 protection circuit, and are all connected with the first chip U1 through the second connector CN2, and send detection signals to the first chip U1.
Specifically, for the circuit structure of the whole heating protection circuit, the first connector CN1 is connected with the main control chip 50, the first connector CN1 is also connected with the coil of the second contactor KM2 and the coil of the third contactor KM3, the coil of the second contactor KM2 and the coil of the third contactor KM3 are also connected in parallel to the coil of the first contactor KM1, the normally closed switch of the first contactor KM1 is arranged on the main way of the normally open switch of the second contactor KM2 and the normally open switch of the third contactor KM3, and the normally open switch of the second contactor KM2 and the normally open switch of the third contactor KM3 also control whether the first heating component 71 and the second heating component 72 can be connected into the heating protection circuit, respectively; the normally closed switch of the first contactor KM1 is also connected with the other end of the manual reset temperature controller TCO, and one end of the manual reset temperature controller TCO is connected with the self-reset temperature controller ATCO. The normally open switch of the second contactor KM2 and the normally open switch of the third contactor KM3 form one end of the heating control module 60, and the coil of the second contactor KM2 and the coil of the third contactor KM3 form the other end of the heating control module 60.
In this way, after the power module 10 is connected to the ac power supply, for the first reheating protection of the heating protection circuit, the outlet water temperature detection sensor RT1 may detect the outlet water temperature, when the outlet water temperature is greater than or equal to the third set temperature, the outlet water temperature detection sensor RT1 may send a detection signal to the main control chip 50, and at this time, the main control chip 50 may send a signal to the coil of the second contactor KM2 and the coil of the third contactor KM3, so as to disconnect the normally open switch of the second contactor KM2 and the normally open switch of the third contactor KM3, disconnect the heating protection circuit, so that the first heating component 71 and the second heating component 72 stop the heating operation, and no longer connect the heating protection circuit. After stopping the heating operation, when the outlet water temperature detection sensor RT1 detects that the outlet water temperature is again smaller than the third set temperature, the main control chip 50 further controls the second contactor KM2 and the third contactor KM3 to be in reset communication with the heating protection circuit, and then controls and starts the operation of the first heating component 71 and the second heating component 72.
For the second reheating protection of the heating protection circuit, sometimes, the situation that the main control chip 50 cannot control the contactor may occur in the circuit, so that when the temperature of the effluent water is higher than the third set temperature and is continuously increased during use, when the temperature of the effluent water is higher than or equal to the first set temperature, the first reheating protection module 20, that is, the self-resetting temperature controller ATCO and the second reheating protection of the first contactor KM1, will be started, and when the temperature of the effluent water is detected to be higher than or equal to the first set temperature, the self-resetting temperature controller ATCO will send a signal to the coil of the first contactor KM1 to disconnect the normally closed switch of the first contactor KM1 disposed on the main circuit of the heating module 70, so that the first heating component 71 and the second heating component 72 stop working and do not access the heating protection circuit. After stopping the heating operation, when the ATCO detects that the outlet water temperature is again smaller than the first set temperature, the ATCO further controls the first reset communication heating protection circuit, and further controls and starts the operation of the first heating component 71 and the second heating component 72.
For the third reheating protection of the heating protection circuit, the situation that the main control chip 50 and the first heating protection module 20 cannot work normally and cannot perform normal heating protection may further occur in the circuit, so that the temperature of the discharged water may be continuously increased above the first set temperature when the heating protection circuit is used. Therefore, when the water outlet temperature is greater than or equal to the second set temperature, the second heating protection module 30 is started to perform third reheating protection of the manual reset temperature controller TCO, and at this time, when the water outlet temperature is greater than or equal to the second set temperature, the manual reset temperature controller TCO is disconnected to disconnect the heating protection circuit, so that the first heating component 71 and the second heating component 72 stop working and are not connected to the heating protection circuit any more. And after stopping heating work, manual reset temperature controller TCO can not carry out automatic re-setting communication circuit again, needs the manual of user to press and resumes the intercommunication.
Based on the same utility model structure, the utility model also provides a heating system, which comprises the heater. 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.
In this way, through the setting of heating protection circuit, the heater reaches heating system can realize the rivers heating to rivers to and the triple heating protection of rivers heating, can reach the security that improves rivers heating and can protect by automatic disconnection circuit, need not the effect of special personnel's guard.
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 heat protection circuit for performing heat protection, comprising:
the device comprises a power supply module, a first heating protection module and a second heating protection module;
the first heating protection module is connected with the second heating protection module, and is used for detecting the water outlet temperature, disconnecting the heating protection circuit when the water outlet temperature is greater than or equal to a first set temperature, and resetting and communicating the heating protection circuit when the water outlet temperature is less than the set temperature;
the second heating protection module is connected with the power supply module through a deconcentrator, is also connected with the first heating protection module, and is used for detecting the water outlet temperature, and the heating protection circuit is disconnected when the water outlet temperature is greater than or equal to a second set temperature;
the power supply module is used for providing alternating current power supply for the heating protection circuit;
wherein the second set temperature is greater than the first set temperature.
2. The heat protection circuit of claim 1, further comprising: the heating control device comprises a main control chip, a heating module and a heating control module;
the main control chip is connected with the other end of the heating control module and is used for controlling the heating control module to be turned on and off;
the heating module is respectively connected with one end of the power supply module and one end of the heating control module, and is used for heating water flow;
the heating control module is used for controlling the opening and closing of the heating module.
3. The heat protection circuit of claim 2, further comprising: the water outlet temperature detection sensor is connected with the main control chip and is used for detecting the water outlet temperature and sending detection signals to the main control chip when the water outlet temperature is higher than a third set temperature.
4. A heating protection circuit according to claim 3, wherein the third set temperature is less than the first set temperature.
5. The heat protection circuit of claim 4, wherein the first heat protection module comprises: from reset temperature controller and first contactor, the second heating protection module includes: manually resetting the temperature controller;
one end of the manual reset temperature controller is connected with the normally closed switch of the first contactor through the deconcentrator, and the other end of the manual reset temperature controller is connected with one end of the self-reset temperature controller;
the other end of the self-resetting temperature controller is connected with the coil of the first contactor.
6. The heat protection circuit of claim 5, wherein the heat control module comprises: a second contactor and a third contactor;
the normally open switch of the second contactor and the normally open switch of the third contactor are respectively connected with the heating module; the coil of the second contactor and the coil of the third contactor are respectively connected with the coil of the first contactor, and the coil of the second contactor and the coil of the third contactor are also connected with the main control chip through a first connector.
7. A heater having a water inlet and a water outlet, further comprising: a heating protection circuit according to any one of claims 1 to 6.
8. A heating system comprising the heater of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322321333.1U CN220754341U (en) | 2023-08-28 | 2023-08-28 | Heating protection circuit, heater and heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322321333.1U CN220754341U (en) | 2023-08-28 | 2023-08-28 | Heating protection circuit, heater and heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220754341U true CN220754341U (en) | 2024-04-09 |
Family
ID=90559221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322321333.1U Active CN220754341U (en) | 2023-08-28 | 2023-08-28 | Heating protection circuit, heater and heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220754341U (en) |
-
2023
- 2023-08-28 CN CN202322321333.1U patent/CN220754341U/en active Active
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