US20200208878A1

US20200208878A1 - Method and device for controlling fan heater, fan heater, and storage medium

Info

Publication number: US20200208878A1
Application number: US16/623,354
Authority: US
Inventors: Qing Wang; Jin Luo; Rulin WU; Chengbo TAN
Original assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Priority date: 2017-06-29
Filing date: 2018-04-23
Publication date: 2020-07-02
Also published as: WO2019001117A1; EP3633287B1; CN107289634A; JP2020521930A; EP3633287A1; EP3633287A4

Abstract

The present disclosure provides a method for controlling a fan heater, including: sampling an indoor temperature at a preset interval (S100); comparing the sampled indoor temperature with a preset temperature to obtain a temperature control signal (S200); and adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal (S300). The present disclosure further provides a fan heater, a device for controlling a fan heater, and a storage medium.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS

The present disclosure is a Continuation Application of PCT Application with No. PCT/CN2018/084092, filed on Apr. 23, 2018, which claims the priority of Chinese Patent Application with No. 201710531620.1, entitled “METHOD AND DEVICE FOR CONTROLLING FAN HEATER, FAN HEATER, AND STORAGE MEDIUM”, filed on Jun. 29, 2017, which is hereby incorporated by reference in its entirety.

FIELD

The present disclosure relates to the field of fan heater, and in particular, to a method and a device for controlling a fan heater, a fan heater, and a storage medium.

BACKGROUND

A fan heater, a kind of heating device, normally includes a housing, a fan, a heater, a controller, etc. Its working principle is that the flow wind generated by the fan forces and brings the heat generated by the heater out, which produces a heating effect.
However, the current fan heater is used to adjust the indoor temperature through only controlling the power of the heater. The adjusting mode has the problems of slow temperature rise rate, poor control precision, and frequent heating manipulations.

SUMMARY

Embodiments of the present disclosure provides a method for controlling a fan heater, which aims to speed up the temperature rise rate, improve the control precision, and reduce the manipulation frequency.
Embodiments of the present disclosure provide a method for controlling a fan heater, the method includes the following operations:
sampling an indoor temperature at a preset interval;
comparing the sampled indoor temperature with a preset temperature to obtain a temperature control signal; and
adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal.
In one embodiment, the operation of “comparing the sampled indoor temperature with a preset temperature to obtain a temperature control signal” includes:
obtaining a difference value by subtracting the sampled indoor temperature from the preset temperature value; and
converting the difference value into the temperature control signal.
In one embodiment, the operation of “adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal” includes:
controlling the fan to rotate at a high speed and controlling the heater to heat at a high power, in response to a determination that the difference value is greater than a first preset difference.
In one embodiment, the first preset difference is 5 degrees Celsius, the high speed is in a range of 1800 rpm to 2300 rpm, and the high power is in a range of 1800 watts to 2200 watts.
In one embodiment, the operation of “adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal” includes:
controlling the fan to rotate at a low speed and controlling the heater to heat at a high power, in response to a determination that the difference value is between a first preset difference and a second preset difference.
In one embodiment, the first preset difference is 5 degrees Celsius, the second preset difference is 3 degrees Celsius, the low speed is in a range of 900 rpm to 1600 rpm, and the high power is in a range of 1800 watts to 2200 watts.
In one embodiment, the operation of “adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal” includes:
controlling the fan to rotate at a low speed and controlling the heater to heat at a low power, in response to a determination that the difference value is less than a second preset difference and greater than zero.
In one embodiment, the second preset difference is 3 degrees Celsius, the low speed is in a range of 900 rpm to 1600 rpm, and the low power is in a range of 900 to 1600 watts.
In one embodiment, the operation of “adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal” includes:
controlling the fan to stop operating after the sampled indoor temperature reaches the preset temperature value, and controlling the heater to stop operating after a preset time duration.
The present disclosure provides a device for controlling a fan heater, the device includes a memory, a processor, and a program for controlling the fan heater stored on the memory and executable on the processor, the program, when executed by the processor, implements the operations of the method as described above.
The present disclosure provides a fan heater including a housing, a heater, a fan assembly, and a device for controlling the fan heater as described above. The heater, the fan assembly and the device for controlling the fan heater are all disposed in the housing.
The present disclosure further provides a storage medium, the storage medium stores a program for controlling a fan heater, the program, when executed by a processor, implements the operations of the method for controlling the fan heater as described above.
Embodiments of the present disclosure, a temperature control signal is obtained by comparing an indoor temperature with a preset temperature. The rotate speed of the fan and the power of the heater are simultaneously adjusted according to the temperature control signal, for accelerating the temperature rise rate and realizing the constant temperature control more accurately, to reduce the heating manipulation frequency and improving the control performance.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings in the following description are only some embodiments of the present disclosure.

FIG. 1 is a flow chart of a method for controlling a fan heater according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of the fan heater according to an embodiment of the present disclosure; and

FIG. 3 is an electric control structural view of the fan heater according to an embodiment of the present disclosure.

DESCRIPTION OF REFERENCE NUMERALS


Label	Name	Label	Name

K1	Power switch	XP	Plug
K2	Dump switch	10	Control board
K3	Temperature limiter		20	Driving board
PTC	Heater	30	Housing
GM	Shaded pole motor	40	Fan
GS	Synchronous motor	50	Heater
RT	Thermistor	60	Device for controlling a fan heater

DETAILED DESCRIPTION OF THE DISCLOSURE

Embodiments of the present disclosure will be clearly and completely described in the following with reference to the accompanying drawings. The embodiments to be described are only a part rather than all of the embodiments of the present disclosure.
It is to be understood that, all of the directional instructions in the embodiments of the present disclosure (such as top, bottom, left, right, front, rear . . . ) can only be used for explaining relative position relations, moving condition of the elements under a first form (referring to figures), and so on, if the first form changes, the directional instructions changes accordingly.
The present disclosure provides a method for controlling a fan heater. It is easy to understand that the method is used for controlling heating of the fan heater.
In an embodiment of the present disclosure, as shown in FIG. 1, the method for controlling the fan heater, including:
S100, sampling an indoor temperature at a preset interval;
S200, comparing the sampled indoor temperature with a preset temperature to obtain a temperature control signal; and
S300, adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal.
It should be noted that a fan and a heater are installed in the fan heater. In this embodiment, the heater uses a positive temperature coefficient heating sheet. The temperature is sampled by a thermistor that is placed at the air inlet of the fan heater. The heater is configured to heat the air, and the fan is configured to accelerate the convection of the hot air generated by the heater, so that the distribution of indoor temperature is uniform and the temperature rise is accelerated.
In operation S200, the level of the indoor temperature is determined by comparing the temperature value with the preset temperature value. In the present embodiment, the heater has two power positions, and the fan also has two speed positions. It is easy to understand that in order to further improve the control accuracy, the number of working positions of the heater and the number of working positions of the fan can be increased.
When the indoor temperature is low, the heater is controlled to operate at a high power position, and the fan is controlled to operate at a high speed position. With the gradual increase of the indoor temperature, the working positions of the heater and the fan can be adjusted. Through the cooperation of the heater and the fan, rapid heating and constant temperature control can be achieved.
Embodiments of the present disclosure, an indoor temperature value is compared with a preset temperature to obtain a temperature control signal, and a power of a heater and a rotate speed of a fan are adjusted according to the temperature control signal. As such, the temperature rise rate is accelerated, and more precise temperature control is achieved, to reduce the heating manipulation frequency and improving control performance.
In one embodiment, the operation of “comparing the sampled indoor temperature with a preset temperature to obtain a temperature control signal” includes:
obtaining a difference value by subtracting the sampled indoor temperature from the preset temperature value; and converting the difference value into the temperature control signal.
In the present embodiment, it is a subtracting method to determine the level of the indoor temperature. In addition, other comparison methods may be used for determining the level of the indoor temperature, for example, dividing the sampled indoor temperature by the preset temperature value and determining the level of the indoor temperature by the quotient obtained after the division.
In one embodiment, the operation of “adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal” includes:
controlling the fan to rotate at a high speed and controlling the heater to heat at a high power, in response to a determination that the difference value is greater than a first preset difference.
In the present embodiment, the first preset difference is 5 degrees Celsius, the high speed is in a range of 1800 rpm to 2300 rpm, and the high power is in a range of 1800 watts to 2200 watts. It should be noted that when the difference value is greater than 5 degrees Celsius, it indicates that the indoor temperature is low and heating is urgently needed. At this time, the fan of the fan heater works at the high power position, and the heater also works at the high power position.
In one embodiment, the operation of “adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal” includes:
controlling the fan to rotate at a low speed and controlling the heater to heat at a high power, in response to a determination that the difference value is between a first preset difference and a second preset difference.
In the present embodiment, the first preset difference is 5 degrees Celsius, the second preset difference is 3 degrees Celsius, the low speed is in a range of 900 rpm to 1600 rpm, and the high power is in a range of 1800 watts to 2200 watts. When the difference value is between 3 degrees Celsius and 5 degrees Celsius, it indicates that the indoor temperature is raised and the environmental comfort is improved. At this time, the rotate speed of the fan should be appropriately reduced and then the fan is operated at a low speed, which reduces fan noise and reduces undesirable interference to people.
In on embodiment, the operation of “adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal” includes:
controlling the fan to rotate at a low speed and controlling the heater to heat at a low power, in response to a determination that the difference value is less than a second preset difference and greater than zero.
In the present embodiment, the second preset difference is 3 degrees Celsius, the low speed is in a range of 900 rpm to 1600 rpm, and the low power is in a range of 900 to 1600 watts. When the difference value is within 3 degrees Celsius, it indicates that the indoor temperature is close to the preset temperature value, no need for rapid heating, and the temperature needs to be fine-tuned. At this time, the heating power of the heater is reduced, and then the heater is operated at a low power, and the fan is operated at a low speed, to reduce the energy consumption, and improving the constant temperature control capability.
In one embodiment, the operation of “adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal” includes:
controlling the fan to stop operating after the sampled indoor temperature reaches the preset temperature value, and controlling the heater to stop operating after a preset time duration.
It should be noted that when the fan rotates, vibration noise will be generated. After the sampled indoor temperature reaches the preset temperature value, the fan power supply is turned off to stop the fan to reduce noise.
The present disclosure provides a device for controlling a fan heater, the device includes a memory, a processor, and a program for controlling the fan heater stored on the memory and executable on the processor, the program, when executed by the processor, implements the operations of the method as described above.
Referring to FIG. 2, the present disclosure provides a fan heater. The fan heater includes a housing 30, a heater 50, a fan assembly 40, and a device for controlling the fan heater as described above. The heater 50, the fan assembly 40 and the device for controlling the fan heater are all disposed in the housing 30. The specific structural function of the fan heater control device refers to the above embodiments.
In the present embodiment, referring to FIG. 3, the fan heater includes a control board 10 and a driving board 20 connected to the control board 10. The control board 10 is connected to the temperature sensing head, and the temperature sensing head is used for sampling temperature. The control board 10 is provided with a memory and a processor in which a computer program is stored, the computer program, when executed by the processor, implements the operations of the method for controlling the fan heater as described above.
The driving board 20 is also connected with a plug XP, a power switch K1, a dump switch K2, and a temperature limiter K3. One end of the power switch K1 is connected to the plug XP, and the other end of the power switch K1 is connected to one end of the dump switch K2. The other end of the dump switch K2 is connected to the driving board 20 via the temperature limiter K3.
One end of the heater PTC (i.e., the heater 50 in FIG. 2) of the fan heater is connected to the driving board 20, and the other end is connected to the plug XP. One end of the synchronous motor GS of the fan heater is connected to the driving board 20, and the other end of the synchronous motor GS is connected to the plug XP. One end of the shaded pole motor GM of the fan heater is connected to the driving board 20, and the other end of the shaded pole motor GM is connected to the plug XP. The synchronous motor GS is configured to control the swing of the air outlet of the fan heater, and the shaded pole motor GM is configured to control the rotation of the fan.
The present disclosure further provides a storage medium, the storage medium stores a program for controlling a fan heater, the program, when executed by a processor, implements the operations of the method for controlling the fan heater as described above.
The above embodiments can be implemented by means of software plus a necessary general hardware platform, and can also be implemented by hardware, but in many cases, the former is a better implementation. Embodiments of the present disclosure, which is essential or contributes to the related art, may be embodied in the form of a software product. The computer software product is stored on a storage medium (such as a ROM/RAM, a magnetic disk, an optical disk) as described above, which includes a number of instructions to cause a terminal device (which may be a cell phone, computer, server, air conditioner, or network device, etc.) to perform the methods as described in various embodiments of the present disclosure.

Claims

1. A method for controlling a fan heater, the method comprising:

sampling an indoor temperature at a preset interval;

comparing the sampled indoor temperature with a preset temperature to obtain a temperature control signal; and

adjusting a power of a heater and a rotate speed of a fan according to the temperature control signal.

2. The method of claim 1, wherein the comparing of the sampled indoor temperature with the preset temperature to obtain a temperature control signal further comprises:

obtaining a different value by subtracting the sampled indoor temperature from the preset temperature value; and

converting the difference value into the temperature control signal.

3. The method of claim 2, wherein the adjusting of the power of the heater and the rotate speed of the fan according to the temperature control signal further comprises:

controlling the fan to rotate at a high speed and controlling the heater to heat at a high power, in response to a determination that the difference value is greater than a first preset difference.

4. The method of claim 3, wherein the first preset difference is 5 degrees Celsius, the high speed is in a range of 1800 rpm to 2300 rpm, and the high power is in a range of 1800 watts to 2200 watts.

5. The method of claim 2, wherein the adjusting of the power of the heater and the rotate speed of the fan according to the temperature control signal further comprises:

controlling the fan to rotate at a low speed and controlling the heater to heat at a high power, in response to a determination that the difference value is between a first preset difference and a second preset difference.

6. The method of claim 5, wherein the first preset difference is 5 degrees Celsius, the second preset difference is 3 degrees Celsius, the low speed is in a range of 900 rpm to 1600 rpm, and the high power is in a range of 1800 watts to 2200 watts.

7. The method of claim 2, wherein the adjusting of the power of the heater and the rotate speed of the fan according to the temperature control signal further comprises:

controlling the fan to rotate at a low speed and controlling the heater to heat at a low power, in response to a determination that the difference value is less than a second preset difference and greater than zero.

8. The method of claim 7, wherein the second preset difference is 3 degrees Celsius, the low speed is in a range of 900 rpm to 1600 rpm, and the low power is in a range of 900 watts to 1600 watts.

9. The method of claim 1, wherein the adjusting of the power of the heater and the rotate speed of the fan according to the temperature control signal further comprises:

controlling the fan to stop operating after the sampled indoor temperature reaches the preset temperature, and controlling the heater to stop operating after a preset time duration.

10. A device for controlling a fan heater, the device comprises:

a memory, a processor, and a program for controlling the fan heater stored on the memory and executable on the processor, the program, when executed by the processor, causes the processor to:

sample an indoor temperature at a preset interval;

compare the sampled indoor temperature with a preset temperature to obtain a temperature control signal; and

adjust a power of a heater and a rotate speed of a fan according to the temperature control signal.

11. The device of claim 10, wherein the comparing of the sampled indoor temperature with a preset temperature to obtain a temperature control signal further comprises:

converting the difference value into the temperature control signal.

12. The device of claim 11, wherein the adjusting of the power of the heater and the rotate speed of the fan according to the temperature control signal further comprises:

13. The device of claim 12, wherein the first preset difference is 5 degrees Celsius, the high speed is in a range of 1800 rpm to 2300 rpm, and the high power is in a range of 1800 watts to 2200 watts.

14. The device of claim 11, wherein the adjusting of the power of the heater and the rotate speed of the fan according to the temperature control signal further comprises:

controlling the fan to rotate at a high speed and controlling the heater to heat at a low power, in response to a determination that the difference value is between a first preset difference and a second preset difference.

15. The device of claim 14, wherein the first preset difference is 5 degrees Celsius, the second preset difference is 3 degrees Celsius, the low speed is in a range of 900 rpm to 1600 rpm, and the high power is in a range of 1800 watts to 2200 watts.

16. The device of claim 11, wherein the adjusting of the power of the heater and the rotate speed of the fan according to the temperature control signal further comprises:

17. A fan heater, comprising:

a housing, a heater, a fan, and a device for controlling the fan heater disposed in the housing,

wherein the device comprises a memory, a processor, and a program for controlling the fan heater stored on the memory and executable on the processor, the program, when executed by the processor, causes the processor to:

sample an indoor temperature at a preset interval;

18. The fan heater of claim 17, wherein the comparing of the sampled indoor temperature with the preset temperature to obtain the temperature control signal further comprises:

converting the difference value into the temperature control signal.

19. The fan heater of claim 18, wherein the adjusting of the power of the heater and the rotate speed of the fan according to the temperature control signal further comprises:

20. A storage medium, wherein the storage medium stores a program for controlling a fan heater, the program, when executed by a processor, causes the processor to:

sample an indoor temperature at a preset interval;