Constant temperature device of motor home heater

Abstract

The embodiment of the utility model discloses a motor home heater constant temperature device which comprises a heater, a temperature sensor, an A / D conversion module, a relay switch, a controller and a temperature setting module, and the heater comprises a cooling liquid heating box, a heating box and a heating assembly which are connected in sequence; the temperature sensor is connected with the heater and the temperature sensor, and the controller is connected with the A / D conversion module, the relay switch and the temperature setting module; the temperature sensor is used for detecting the temperature in the motor home and sending a detected temperature signal to the controller through the A / D conversion module, and the controller compares the detected temperature with a set temperature and then controls the relay switch to be turned on and turned off so as to control the heater to work; the motor home heating control system is simple in structure, low in working power in use, high in switch control precision and low in consumption.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of constant temperature heaters, and in particular to a constant temperature device for a motorhome heater. Background Art

[0002] RVs can usually be divided into self-propelled RVs and trailer RVs. Among them, trailer RVs do not have driving force themselves and rely on tractors to move. However, they have the advantages of large space design space, the tractor can be replaced as needed, and the tractor can move independently after parking at the campsite, so they are popular among people. During the use of RVs, independent heating or cooling equipment needs to be started, and the existing RV heater thermostat has a complex structure, consumes a lot of power when used. Utility Model Content

[0003] The embodiment of the present application provides a thermostat for a motorhome heater to solve the problem that the existing thermostat for a motorhome heater has a complex structure, large consumption and high power when in use.

[0004] In the first aspect, an embodiment of the present application provides a constant temperature device for a motorhome heater, comprising a heater, a temperature sensor, an A / D conversion module, a relay switch, a controller and a temperature setting module, wherein the heater comprises a coolant heating box, a heating box and a heating component connected in sequence; the temperature sensor is connected to the heater and the temperature sensor, and the controller is connected to the A / D conversion module, the relay switch and the temperature setting module; the temperature sensor is used to detect the temperature inside the motorhome and send the detected temperature signal to the controller through the A / D conversion module, and the controller compares the detected temperature with the set temperature and controls the relay switch to open and close, so as to control the operation of the heater.

[0005] In some embodiments, the coolant heating box is provided with a fin evaporator, a heating motor and a heater for heating the coolant, the heating box includes a first circulation pipe connected to the heating component and providing heat energy to the heating component, the heater is connected to the heating motor, and the fin evaporator is connected to the heating box through an evaporation pipe to provide heat energy to the first circulation pipe; the heating component includes a heat exchanger, a fan and a second circulation pipe, the second circulation pipe connects the first circulation pipe and the heat exchanger, and the heat exchanger is connected to the fan.

[0006] In some embodiments, a solenoid valve is also provided on the second circulation pipeline.

[0007] In some embodiments, a circulation pump is further provided on the second circulation pipeline.

[0008] In some embodiments, the heating box is provided with an insulation layer outside.

[0009] In some embodiments, a heat insulating layer is provided inside the coolant heating box.

[0010] In some embodiments, the temperature sensor is a thermistor temperature sensor.

[0011] In some embodiments, the relay switch is of model JQX-13F.

[0012] In some embodiments, the A / D conversion module uses a TIADS1278 model A / D converter.

[0013] In some embodiments, the temperature setting module is a button-type temperature setting module.

[0014] In the embodiment of the present application, a temperature sensor is set to detect the temperature inside the RV. The controller compares the detected temperature with the set temperature. If the detected temperature is lower than the set temperature, the relay switch is controlled to close to control the heater to provide heating. If the detected temperature is higher than the set temperature, the relay switch is controlled to open and the heater stops working, thereby realizing automatic heating control according to the temperature inside the RV. The structure is simple, the operating power is low during use, the switch control accuracy is high, and the consumption is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a thermostatic device for a motorhome heater provided in an embodiment of the present application;

[0016] Figure 2 It is a schematic diagram of the heater structure of a constant temperature device for a motorhome heater provided in an embodiment of the present application. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the present application clearer, the specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for the convenience of description, only the part related to the present application but not all the contents are shown in the accompanying drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flow charts. Although the flow chart describes each operation (or step) as a sequential process, many of the operations therein can be implemented in parallel, concurrently or simultaneously. In addition, the order of each operation can be rearranged. The process can be terminated when its operation is completed, but it can also have additional steps not included in the accompanying drawings. The process can correspond to a method, a function, a procedure, a subroutine, a subprogram, etc.

[0018] The thermostat for a motorhome heater of the embodiment of the present application is provided to avoid the problems of the conventional thermostat for a motorhome heater having a complicated structure, large consumption and high power during use.

[0019] Figure 1 This is a schematic diagram of the structure of a thermostatic device for a motorhome heater provided in an embodiment of the present application. Figure 1 The RV heater thermostat includes a heater, a temperature sensor, an A / D conversion module, a relay switch K1, a controller and a temperature setting module. The heater includes a coolant heating box 300, a heating box 200 and a heating component connected in sequence; the temperature sensor is connected to the heater and the temperature sensor, and the controller is connected to the A / D conversion module, the relay switch K1 and the temperature setting module; the temperature sensor is used to detect the temperature in the RV and send the detected temperature signal to the controller through the A / D conversion module. The controller compares the detected temperature with the set temperature and then controls the relay switch K1 to open and close to control the operation of the heater.

[0020] As mentioned above, the embodiment of the present application detects the temperature inside the RV by setting a temperature sensor, and the controller compares the detected temperature with the set temperature. If the detected temperature is lower than the set temperature, the relay switch K1 is controlled to close to control the heater to provide heating. If the detected temperature is higher than the set temperature, the relay switch K1 is controlled to disconnect and the heater stops working, thereby realizing automatic heating control according to the temperature inside the RV. The structure is simple, the working power is low during use, the switch control accuracy is high, and the consumption is low.

[0021] In some embodiments, please refer to Figure 2 The coolant heating box 300 is provided with a fin evaporator 301, a heating motor 305 and a heater 304 for heating the coolant. The heating box 200 includes a first circulation pipe 202 connected to the heating component and providing heat energy to the heating component. The heater 304 is connected to the heating motor 305. The fin evaporator 301 is connected to the heating box 200 through a steam pipe 204 to provide heat energy to the first circulation pipe 202; the heating component includes a heat exchanger, a fan and a second circulation pipe 107. The second circulation pipe 107 connects the first circulation pipe 202 and the heat exchanger, and the heat exchanger is connected to the fan.

[0022] It can be understood that a heating motor 305 and a heater 304 are provided to heat the coolant in the coolant heating box 300, and the heat is transferred to the first circulation pipe 202 in the heating box 200 through the fin evaporator 301. The first circulation pipe 202 transfers the heat to the heating component, and the heat energy is converted into warm air and warm air through the heating component to supply the interior of the RV, thereby realizing heating inside the RV. The heating power of the entire device is low and the consumption is low.

[0023] As a preferred embodiment, the heat exchanger includes a first heat exchanger 102 and a second heat exchanger 103, and the fan includes a first fan 101 and a second fan 104, so as to convert the heat energy of the second circulation pipe 107 into warm wind and warm air to supply the interior of the RV.

[0024] As a preferred embodiment, the second circulation pipeline 107 is also provided with a solenoid valve 106 and a circulation pump 105; the solenoid valve 106 controls the on-off of the second circulation pipeline 107, thereby controlling the operation of the heating component, and the circulation pump 105 is provided to ensure the normal circulation of the loops of the first circulation pipeline 202 and the second circulation pipeline 107.

[0025] As a preferred embodiment, the heating box 200 is provided with an insulation layer 201 on the outside, and the insulation layer 201 is provided to insulate the heating box 200 to avoid heat loss.

[0026] As a preferred embodiment, a heat insulating layer 302 is provided in the coolant heating box 300, and the heat insulating layer 302 is provided to insulate the coolant heating box 300 to prevent the excessive temperature from affecting other equipment inside the RV.

[0027] As a preferred embodiment, the thermal insulation layer 201 is provided with an aluminum foil bubble insulation film and fiber cotton to prevent heat loss in the heating box 200.

[0028] As a preferred implementation, the temperature sensor is a thermal resistance temperature sensor.

[0029] As a preferred implementation, the model of the relay switch K1 is JQX-13F.

[0030] As a preferred implementation, the A / D conversion module uses a TIADS1278 A / D converter.

[0031] As a preferred implementation, the temperature setting module is a button-type temperature setting module.

[0032] The above are only preferred embodiments of the present application and the technical principles used. The present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not deviate from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A thermostatic device for a motorhome heater, characterized in that: include: A heater, a temperature sensor, an A / D conversion module, a relay switch, a controller and a temperature setting module, wherein the heater comprises a coolant heating box, a heating box and a heating component which are connected in sequence; the temperature sensor is connected to the heater and the temperature sensor, and the controller is connected to the A / D conversion module, the relay switch and the temperature setting module; the temperature sensor is used to detect the temperature inside the RV and send the detected temperature signal to the controller through the A / D conversion module, and the controller compares the detected temperature with the set temperature and then controls the relay switch to open and close, so as to control the operation of the heater.

2. The thermostatic device for a motorhome heater according to claim 1, characterized in that: The coolant heating box is provided with a fin evaporator, a heating motor and a heater for heating the coolant. The heating box includes a first circulation pipe connected to the heating component and providing heat energy to the heating component. The heater is connected to the heating motor. The fin evaporator is connected to the heating box through an evaporation pipe to provide heat energy to the first circulation pipe; the heating component includes a heat exchanger, a fan and a second circulation pipe. The second circulation pipe connects the first circulation pipe and the heat exchanger, and the heat exchanger is connected to the fan.

3. The thermostatic device for a motorhome heater according to claim 2, characterized in that: The second circulation pipeline is also provided with a solenoid valve.

4. The thermostatic device for a motorhome heater according to claim 2, characterized in that: The second circulation pipeline is also provided with a circulation pump.

5. The thermostatic device for a motorhome heater according to claim 2, characterized in that: A heat preservation layer is arranged outside the heating box.

6. The thermostatic device for a motorhome heater according to claim 2, characterized in that: A heat insulation layer is arranged in the coolant heating box.

7. The thermostatic device for a motorhome heater according to claim 1, characterized in that: The temperature sensor is a thermal resistance temperature sensor.

8. The thermostatic device for a motorhome heater according to claim 1, characterized in that: The model of the relay switch is JQX-13F.

9. The thermostatic device for a motorhome heater according to claim 1, characterized in that: The A / D conversion module adopts a TIADS1278 A / D converter.

10. The thermostatic device for a motorhome heater according to claim 1, characterized in that: The temperature setting module adopts a button-type temperature setting module.

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