WO2022143147A1

WO2022143147A1 - Control method and device of laundry treatment apparatus, controller, and laundry treatment apparatus

Info

Publication number: WO2022143147A1
Application number: PCT/CN2021/137831
Authority: WO
Inventors: 高科科; 汤奇雄; 张肃; 龚纯
Original assignee: 广东美的白色家电技术创新中心有限公司; 美的集团股份有限公司
Priority date: 2020-12-30
Filing date: 2021-12-14
Publication date: 2022-07-07

Abstract

A control method and control device (320) of a laundry treatment apparatus (100'), a controller (30), and the laundry treatment apparatus (100'). The control method of the laundry treatment apparatus (100') comprises: when a laundry treatment apparatus (100') is in a drying mode, controlling the electric heating amount of an electric heating module (10) of the laundry treatment apparatus (100') to be greater than the heating amount of a heat pump system during the entire drying cycle; acquiring the exhaust air temperature of the heat pump system, and comparing the exhaust air temperature with a first safe temperature value of the heat pump system; and when the exhaust air temperature is greater than the first safe temperature value, adjusting the state of the electric heating module (10) and/or the heat pump system until the exhaust air temperature is not greater than the first safe temperature value.

Description

Control method, device and controller for laundry treatment equipment and laundry treatment equipment

priority information

This application claims the priority of the Chinese patent application with the application number 202011626949.4 and the title of "Control Method, Device, Controller and Clothes Treatment Equipment for Clothes Treatment Equipment", which was submitted to the State Intellectual Property Office of China on December 30, 2020 and rights and interests, and also claim the priority rights and rights and interests of the Chinese patent application with the application number 202023340915.7 and titled "Clothing Treatment Equipment", which was submitted to the State Intellectual Property Office of China on December 30, 2020, the entire contents of which are incorporated by reference in in this application.

technical field

The present invention relates to the technical field of household appliances, and in particular, to a control method, device, and controller of a clothes treatment device, and a clothes treatment device.

Background technique

This section provides merely background information related to the present disclosure and is not necessarily prior art.

The drying time required by the laundry processing device to dry the laundry depends on the heating power of the laundry processing device. Increasing the heating power of the laundry processing device can greatly help shorten the drying time. At present, there are three heating and drying methods for clothes processing equipment with drying function: 1) heating and drying methods of electric heating; 2) heating and drying methods of heat pump systems (including compressors and heat exchange devices); 3) heat pumps are The main drying heat source is combined with electric heating as a drying method as an auxiliary drying heat source.

In order to shorten the drying time, if only the heat pump system is used to dry the clothes, the cost will increase, which is difficult for users to accept. Instead, the clothes are only dried by electric heating, and the drying time required for drying the clothes has reached the limit. , the drying time cannot be further shortened. Therefore, the existing clothes treatment equipment generally adopts a drying method in which a heat pump is used as the main drying heat source and electric heating is used as an auxiliary drying heat source.

As shown in FIG. 1 , the clothes treatment device 100 ′ adopts a drying method in which the heat pump 10 ′ is used as the main drying heat source and the electric heating 20 ′ is used as the auxiliary drying heat source, and the heating power of the heat pump 10 ′ is dominant (the proportion of heating power> 50%, usually accounts for more than 70%), and the electric heating 20' is used as an auxiliary heat source (the proportion of electric heating power is <50%, usually less than 30%). The proportion of the electric heating power should not be too high, which is mainly limited by the exhaust temperature of the heat pump 10'. The electric heating power provided by the electric heating 20' is too high or the exhaust temperature of the heat pump 10' increases. As a result, the heat pump 10' has a shutdown failure.

At present, in order to reduce the phenomenon of shutdown failure of the heat pump 10 ′ due to the increase of the exhaust gas temperature, the cooling fan 30 ′ is generally used to cool the heat pump 10 ′ in the prior art, which increases the equipment cost and the drying system to a certain extent. structural complexity.

SUMMARY OF THE INVENTION

The present invention aims to at least to a certain extent solve the technical problem that the laundry treatment equipment cannot take into account the drying cost and the drying time.

In order to achieve the above object, a first aspect of the present invention provides a control method of a clothes treatment device, the control method includes: according to the clothes treatment device being in a drying mode, during the entire drying cycle, controlling the electric heating module of the clothes treatment device. The electric heating capacity is greater than the heating capacity of the heat pump system of the clothes treatment equipment; the exhaust gas temperature of the heat pump system is obtained, and the exhaust gas temperature is compared with the first safe temperature value of the heat pump system; The state of the heating module and/or the heat pump system until the exhaust gas temperature is not greater than the first safe temperature value.

In the clothes treating apparatus of the present invention, the electric heating capacity of the electric heating module is set to be larger than the heating capacity of the heat pump system, the burden of the heat pump system is reduced, and a low-displacement heat pump system can be used, thereby reducing the cost of the entire drying system, and at the same time , taking into account the influence of the increase in the electric heating amount on the exhaust gas temperature of the heat pump system, and reducing the phenomenon of failure of the heat pump system due to the increase in the exhaust gas temperature.

In addition, the control method of the above-mentioned laundry treatment device according to the present invention may also have the following additional technical features:

According to one embodiment of the present invention, adjusting the state of the electric heating module and/or the heat pump system until the exhaust gas temperature is not greater than the first safe temperature value according to the exhaust gas temperature being greater than the first safe temperature value includes: controlling the electric heating module to turn off until the exhaust gas temperature is not greater than the first safe temperature value. The air temperature is not greater than the second safe temperature value; the electric heating module is controlled to be turned on again and the electric heating power of the electric heating module is greater than the heating power of the heat pump system, wherein the second safe temperature value is smaller than the first safe temperature value.

According to an embodiment of the present invention, adjusting the state of the electric heating module and/or the heat pump system until the exhaust gas temperature is not greater than the first safe temperature value according to the exhaust gas temperature being greater than the first safe temperature value includes: controlling the electric heating of the electric heating module The power is gradually reduced until the exhaust gas temperature is not greater than the second safe temperature value; the electric heating power of the electric heating module is controlled to gradually increase until the electric heating power of the electric heating module is greater than the heating power of the heat pump system, wherein the second safe temperature value is smaller than the first safe temperature value. Safe temperature value.

According to an embodiment of the present invention, the control method further includes: calculating the accumulated working time of the electric heating module according to the required heat in the drying mode and the electric heating power of the electric heating module; controlling the electric heating module to continue to work for the accumulated working time until drying Mode ends.

According to an embodiment of the present invention, the control method further includes: calculating the cumulative working time of the electric heating module according to the required heat in the drying mode and the electric heating power of the electric heating module; controlling the electric heating module in combination with the exhaust temperature of the heat pump system to Cumulative working time in interval working mode or PID control mode.

According to an embodiment of the present invention, adjusting the state of the electric heating module and/or the heat pump system until the exhaust gas temperature is not greater than the first safe temperature value according to the exhaust gas temperature is greater than the first safe temperature value, further comprising: controlling the compressor of the heat pump system The power of the heat pump is gradually reduced until the exhaust gas temperature is not greater than the second safe temperature value; the power of the compressor controlling the heat pump system is gradually restored to the normal power value, wherein the second safe temperature value is smaller than the first safe temperature value.

A second aspect of the present invention also provides a control device for a clothes treatment device, the control device is configured to execute the control method for the clothes treatment device according to the first aspect of the present invention, and the control device includes: a control module for according to whether the clothes treatment device is in Drying mode, in the whole drying cycle, the electric heating amount of the electric heating module that controls the clothes treatment equipment is greater than the heating amount of the heat pump system of the clothes treatment equipment; the comparison module is used to obtain the exhaust temperature of the heat pump system and compare the exhaust gas temperature and the first safe temperature value of the heat pump system; the control module is further configured to adjust the state of the electric heating module and/or the heat pump system until the exhaust gas temperature is not greater than the first safe temperature value according to the exhaust temperature greater than the first safe temperature value.

A third aspect of the present invention further provides a controller, the controller includes a memory and a control device according to the second aspect of the present invention, the memory stores instructions, and when the control device executes the instructions, the clothes according to the first aspect of the present invention are implemented The control method of the processing device.

A fourth aspect of the present invention also provides a clothes treatment device, the clothes treatment device includes: a clothes dryer for accommodating clothes; a heat pump system, the heat pump system includes a compressor and a heat exchange device, and the heat exchange device and the clothes dryer are connected to each other. The heating air duct is connected; the electric heating module, the electric heating module is arranged in the heating air duct of the clothes dryer; the temperature sensor is arranged on the discharge side of the compressor to monitor the discharge temperature of the compressor, and the monitored discharge The air temperature is sent to a controller, which is a controller according to the third aspect of the present invention.

According to an embodiment of the present invention, the displacement of the compressor is not greater than 8.2cc, and the electric heating power threshold of the electric heating module is 300W-1600W.

According to an embodiment of the present invention, the heat pump system further includes a mounting seat, the compressor is arranged on the mounting seat, and the cooling fan of the compressor is not arranged on the mounting seat.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

FIG. 1 is a schematic structural diagram of a clothing treatment device in the prior art;

2 is a schematic structural diagram of a clothes dryer according to an embodiment of the present invention;

3 is a structural block diagram of a controller according to an embodiment of the present invention;

FIG. 4 is a flowchart of a control method of a laundry treatment apparatus according to an embodiment of the present invention;

FIG. 5 is a flowchart of a control method of a laundry treatment apparatus according to a first embodiment of the present invention;

FIG. 6 is a flowchart of a control method of a laundry treatment apparatus according to a second embodiment of the present invention;

FIG. 7 is a structural block diagram of a control apparatus of a laundry treatment apparatus according to an embodiment of the present invention.

Among them, the reference numerals are as follows:

100', clothes treatment equipment; 10', heat pump; 20', electric heating; 30', cooling fan;

100, clothes dryer; 101, clothes dryer; 102, heating air duct; 103, fan;

10. Electric heating module;

21, compressor; 22, condenser; 23, evaporator; 24, throttle device; 25, temperature sensor;

30, controller; 310, memory; 320, control device;

320, a control device; 321, a control module; 322, a comparison module.

Detailed ways

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art. It should be noted that the control method of the clothing treatment device of the present invention is not only limited to a clothes dryer for drying clothes, but also applicable to other clothes treatment devices, such as an all-in-one washer and dryer, and this adjustment belongs to the control of the clothes treatment device of the present invention. The scope of protection of the method.

As shown in FIG. 2 and FIG. 3 , in order to clearly describe the control method, device, controller and clothes treatment device of the clothes treatment device provided by the present invention, the clothes treatment device provided by the fourth aspect of the present invention will be described in detail below. In the embodiment of the fourth aspect of the present invention, in order to facilitate the description of the technical solutions and technical effects provided by the present invention, the following description takes the clothes processing equipment as a clothes dryer 100 as an example. The clothes dryer 100 mainly includes a clothes dryer 101, a heating air Road 102, fan 103, electric heating module 10, heat pump system, temperature sensor 25 and controller 30, wherein the heat pump system includes compressor 21, condenser 22, evaporator 23 and throttling device 24, temperature sensor 25 is arranged in the compressor On the exhaust side of the machine 21, the clothes dryer 101 is used to hold clothes and rotate under the drive of a motor (not shown in the figure), and the electric heating module 10 and the heat pump system are used to pass into the clothes dryer 101 after it is turned on. Hot air, the fan 103 is communicated with the heating air duct 102 of the drying drum 101, and is used to blow hot air into the drying drum 101 after being turned on. The temperature sensor 25 is used to monitor the exhaust temperature in the heat pump system, and will monitor The obtained exhaust gas temperature is sent to the controller 30, and the controller 30 controls the electric heating module 10 and the working mode of the heat pump system according to the exhaust gas temperature in the heat pump system, wherein the controller 30 is the controller 30 according to the third aspect of the present invention , the controller 30 includes a memory 310 and a control device 320, the memory 310 stores instructions, and when the control device executes the instructions, the control method of the laundry treatment apparatus according to the first aspect of the present invention can be implemented.

The clothes treating apparatus of the present invention is used to set the electric heating amount of the electric heating module 10 to be larger than the heating amount of the heat pump system in the whole drying cycle, thereby reducing the cost of the whole drying system, and at the same time, taking into account the electric heating amount Increasing the effect on the exhaust temperature of the heat pump system reduces the phenomenon of failure of the heat pump system due to the increase in exhaust temperature. In addition, the clothes treatment device provided by the embodiment of the present application does not require a cooling fan at the compressor 21 of the heat pump system, and does not require a cooling fan to cool down the compressor 21, thereby reducing the cost of the cooling fan and increasing the equipment cost and the structure of the drying system phenomenon of complexity. Specifically, the heat pump system further includes a mounting seat (not shown in the figure), the compressor 21, the condenser 22, the evaporator 23 and the throttling device 24 are all arranged on the mounting seat, and the compressor 21 is not provided on the mounting seat. The cooling fan, the heat pump system proposed in the embodiment of the present application, firstly reduces the space occupied by the compressor 21 and the entire heat pump system by reducing the displacement of the compressor 21, and secondly, by eliminating the cooling fan of the compressor 21, reducing the entire space occupied by the compressor 21 The volume of the heat pump system and the space occupied by the dryer 100 .

Further, a switchable heat dissipation hole (not shown in the figure) is provided on the mounting seat at the position of the compressor 21, and a switchable heat dissipation plate (not shown in the figure) is provided at the heat dissipation hole, and the heat dissipation hole is used for clothes treatment. The device is in a closed state during normal operation. When the exhaust gas temperature of the compressor 21 is greater than the first safe temperature, the heat dissipation effect of the compressor 21 can be improved by opening the heat dissipation holes.

In order to achieve the effect that the electric heating power of the electric heating module 10 is greater than the heating power of the heat pump system, according to the embodiment of the present application, the displacement of the compressor 21 is not larger than 8.2cc, and the electric heating power threshold of the electric heating module 10 is 300W-1600W , it should be noted that the displacement of the compressor 21 is set to not more than 8.2cc, and the electric heating power threshold of the electric heating module 10 is set to 300W-1600W, just to achieve the electric heating power greater than the heating power of the heat pump system. The preferred embodiment does not limit the displacement of the compressor 21 and the electric heating power threshold of the electric heating module 10. On the premise that the electric heating power is greater than the heating power of the heat pump system, the displacement of the compressor 21 may also be Setting to other suitable displacement, and setting the electric heating power threshold of the electric heating module 10 to other suitable power thresholds belong to the protection scope of the embodiments of the present application.

That is to say, the embodiment of the present application adopts a high-power electric heating module 10, and the electric heating module 10 is installed in the heating air duct 102 of the clothes dryer 100. The electric heating module 10 may adopt a honeycomb structure or surround the heating air duct. The inner wall of the electric heating module 102 is tiled to improve the heating efficiency of the electric heating module 10. In addition, in order to reduce the influence of the electric heating module 10 on the compressor 21, the embodiment of the present application also proposes to set the electric heating module 10 in the heating air In the duct 102 away from the compressor 21, and the heating air duct 102 is provided with a heat dissipation hole (not shown in the figure) between the electric heating module 10 and the compressor 21, when the exhaust temperature of the compressor 21 is too high When the heat dissipation hole is opened, the electric heating module 10 can be dissipated by opening the heat dissipation holes, so as to reduce the influence of the heat generated by the electric heating module 10 on the compressor 21 .

The instructions stored in the memory will be described in detail below through a method for controlling a clothes treating apparatus according to the first aspect of the present invention.

As shown in FIG. 4 and in conjunction with FIG. 2 , according to an embodiment of the first aspect of the present invention, the first aspect of the present invention provides a control method for a clothes treatment device, the control method includes: S410 , according to whether the clothes treatment device is drying In the mode, the electric heating capacity of the electric heating module 10 of the clothes treatment device is controlled to be greater than the heating capacity of the heat pump system of the clothes treatment device; S420, the exhaust temperature of the heat pump system is acquired, and the exhaust temperature is compared with the first safe temperature value of the heat pump system ; S430, adjust the state of the electric heating module 10 and/or the heat pump system until the exhaust gas temperature is not greater than the first safe temperature value according to the exhaust gas temperature being greater than the first safe temperature value.

In this embodiment, the clothes treating apparatus of the present invention is used to set the electric heating capacity of the electric heating module 10 to be greater than the heating capacity of the heat pump system, thereby reducing the cost of the entire drying system, and at the same time, taking into account the increase in the electric heating capacity The effect on the exhaust temperature of the heat pump system reduces the phenomenon of failure of the heat pump system due to the increase of the exhaust temperature.

According to an embodiment of the present invention, step S430 specifically includes: controlling the electric heating module 10 to be turned off until the exhaust gas temperature is not greater than the second safe temperature value; controlling the electric heating module 10 to be turned on again and the electric heating power of the electric heating module 10 is greater than that of the heat pump system The heating power, wherein the second safe temperature value is smaller than the first safe temperature value.

In this embodiment, as shown in FIG. 5 and in conjunction with FIG. 2 , the control method of the clothes treatment device performs the following steps: S502 , the clothes dryer 100 turns on the clothes drying mode, and the fan 103 runs; S504 , the electric heating module 10 operates with high power run, the heat pump system runs with low power; S506, determine whether the exhaust gas temperature of the heat pump system is greater than the first safe temperature value; when the exhaust gas temperature is not greater than the first safe temperature value, continue to perform step S504, when the exhaust gas temperature is greater than the first safe temperature Safe temperature value, go to step S508, the electric heating module 10 stops running, and the heat pump system runs with low power; S510, judge whether the exhaust gas temperature of the heat pump system is greater than the second safe temperature value; when the exhaust gas temperature is greater than the second safe temperature value, Continue to execute step S508, when the exhaust gas temperature is not greater than the second safe temperature value, execute step S512, control the electric heating module 10 to restart and the electric heating power of the electric heating module 10 is greater than the heating power of the heat pump system.

In the embodiment of the present application, the exhaust temperature of the heat pump system is reduced by controlling the electric heating module 10 to stop running, so as to control the exhaust temperature of the heat pump system within a safe temperature range. This embodiment can quickly reduce the temperature of the heat pump system. In this way, the phenomenon that the heat pump system is damaged due to high temperature is reduced, and at the same time, the heat pump system is always in the running state to dry the clothes, thereby shortening the total drying time of the drying system.

According to an embodiment of the present invention, step S430 specifically includes: controlling the electric heating power of the electric heating module 10 to gradually decrease until the exhaust gas temperature is not greater than the second safe temperature value; controlling the electric heating power of the electric heating module 10 to gradually increase until the electric heating The electric heating power of the module 10 is greater than the heating power of the heat pump system, wherein the second safe temperature value is smaller than the first safe temperature value.

In this embodiment, as shown in FIG. 6 and in conjunction with FIG. 2 , the control method of the clothes treatment device performs the following steps: S602 , the clothes dryer 100 turns on the clothes drying mode, and the fan 103 runs; S604 , the electric heating module 10 operates with high power run, the heat pump system runs at low power; S606, determine whether the exhaust gas temperature of the heat pump system is greater than the first safe temperature value; when the exhaust gas temperature is not greater than the first safe temperature value, continue to perform step S604, when the exhaust gas temperature is greater than the first safe temperature value, go to step S608, control the electric heating power of the electric heating module 10 to gradually decrease, and the heat pump system operates at low power; S610, determine whether the exhaust gas temperature of the heat pump system is greater than the second safe temperature value; when the exhaust gas temperature is greater than the first Second safe temperature value, continue to execute step S608, when the exhaust gas temperature is not greater than the second safe temperature value, execute step S612, control the electric heating power of the electric heating module 10 to gradually increase until the electric heating power of the electric heating module 10 is greater than that of the heat pump system heating power.

The embodiment of the present application reduces the exhaust temperature of the heat pump system by reducing the operating power of the electric heating module 10, so as to control the exhaust temperature of the heat pump system within a safe temperature range. In this drying mode, the electric heating module 10 and the heat pump system are always in the running state to dry the clothes, thereby shortening the total drying time of the drying system. In addition, it can reduce the frequent starting and stopping of the electric heating module 10. negative impact.

According to an embodiment of the present invention, step S430 further includes: controlling the power of the compressor 21 of the heat pump system to gradually decrease until the exhaust gas temperature is not greater than the second safe temperature value; controlling the power of the compressor 21 of the heat pump system to gradually return to normal power value, wherein the second safe temperature value is less than the first safe temperature value.

In this embodiment, by reducing the power of the compressor 21, the exhaust gas temperature of the compressor 21 can be rapidly reduced until the exhaust gas temperature of the compressor 21 is lower than the set second safe temperature value, thereby reducing the exhaust gas temperature Excessive damage to the heat pump system. Further, controlling the operating power of the compressor 21 and controlling the state of the electric heating module 10 are performed at the same time, thereby accelerating the cooling speed of the heat pump system, reducing the downtime of the electric heating module 10, and enabling the electric heating module 10 to return to normal as soon as possible. working mode, thereby reducing the total drying time of drying mode.

According to an embodiment of the present invention, the control method of the laundry treatment device further includes: calculating the accumulated working time of the electric heating module 10 according to the required heat in the drying mode and the electric heating power of the electric heating module 10; controlling the electric heating module 10 to continuously The work accumulates the working hours until the drying mode ends.

In this embodiment, when the electric heating power of the electric heating module 10 is small, for example, when the electric heating power of the electric heating module 10 is less than 1000W, the electric heating module 10 will not damage the electric heating module 10 if it continues to work. The heating module 10 continues to work for a cumulative working time until the drying mode ends. The heating mode has a relatively long working time, but has high safety and reliability, which can reduce the negative impact caused by frequent startup and shutdown of the electric heating module 10 .

According to an embodiment of the present invention, the cumulative working time of the electric heating module 10 is calculated according to the required heat in the drying mode and the electric heating power of the electric heating module 10; the electric heating module 10 is controlled to work at intervals in combination with the exhaust temperature of the heat pump system Mode or PID control mode work cumulative working time.

In this embodiment, when the electric heating power of the electric heating module 10 is relatively large, such as when the electric heating power of the electric heating module 10 is greater than 1000W, the electric heating module 10 will be damaged if the electric heating module 10 continues to work, and the damage to the heat pump system and the The clothes dryer 100, at this time, controls the electric heating module 10 in combination with the exhaust gas temperature of the heat pump system to work in the interval working mode or the PID control mode for the accumulated working time, which can not only improve the working reliability of the electric heating module 10, but also reduce the electric heating The electric heating of the module 10 has an influence on the exhaust gas temperature of the heat pump system. The working time of this heating mode is relatively short, but the safety and reliability are relatively low.

In addition, the electric heating module 10 works in the interval working mode or the PID control mode in combination with the exhaust gas temperature of the heat pump system, taking the exhaust gas temperature of the heat pump system as a reference, when the exhaust gas temperature of the heat pump system increases, the electric heating module 10 The electric heating power of the heat pump is gradually reduced through the PID control mode (proportional-integral-derivative control), or the electric heating module 10 stops running within an appropriate time, so as to restore the exhaust temperature of the heat pump system to a safe temperature range. When the exhaust gas temperature of the heat pump system decreases, the electric heating power of the electric heating module 10 is gradually increased through PID control, thereby reducing the total working time of the drying mode and satisfying the user's requirement for the drying time.

It should be noted that the first safe temperature value set in this embodiment is the critical temperature value at which the heat pump system fails, the second safe temperature value is the temperature value when the heat pump system is in a normal working state, and the first safe temperature value is Greater than the second safe temperature value, further, when the exhaust gas temperature in the heat pump system is greater than the second safe temperature value and less than the first safe temperature value, the controller 30 of this embodiment will issue a high temperature alarm signal to let customers know and take action. Reasonable safety measures to reduce the phenomenon of high temperature damage to the heat pump system.

Further, when the exhaust temperature of the heat pump system is greater than the first safe temperature value, the controller 30 in the clothes dryer 100 also controls the motor of the clothes dryer 101 to speed up the operation, or controls the operation power of the fan 103 to increase, so as to increase the speed of operation. The circulation efficiency of the hot air in the heating air duct 102 reduces the phenomenon that a large amount of hot air accumulates on the discharge side of the compressor 21 .

As shown in FIG. 7 in conjunction with FIG. 2 and FIG. 3 , the second aspect of the present invention further provides a control device 320 for a laundry treatment device corresponding to the control method for a laundry treatment device in the first aspect of the present invention. The control device 320 Including: a control module 321 for controlling the electric heating amount of the electric heating module 10 of the clothes treatment device to be greater than the heating amount of the heat pump system of the clothes treatment device in the whole drying cycle according to the clothes treatment device being in the drying mode; the comparison module 322 , used to obtain the exhaust gas temperature of the heat pump system, and compare the exhaust gas temperature with the first safe temperature value of the heat pump system; the control module 321 is also used to adjust the electric heating module 10 and/or the electric heating module 10 according to the exhaust gas temperature greater than the first safe temperature value or the state of the heat pump system until the exhaust gas temperature is not greater than the first safe temperature value.

In this embodiment, the clothes treating apparatus of the present invention is used to set the electric heating amount of the electric heating module 10 to be greater than the heating amount of the heat pump system, thereby reducing the cost of the entire drying system, and at the same time, taking into account the increase in electric heating power The effect on the exhaust temperature of the heat pump system reduces the phenomenon of failure of the heat pump system due to the increase of the exhaust temperature.

According to an embodiment of the present invention, the control module 321 is further configured to control the electric heating module 10 to be turned off until the exhaust gas temperature is not greater than the second safe temperature value; to control the electric heating module 10 to be turned on again and the electric heating power of the electric heating module 10 is greater than that of the heat pump The heating power of the system, wherein the second safe temperature value is smaller than the first safe temperature value.

According to an embodiment of the present invention, the control module 321 is further configured to control the electric heating power of the electric heating module 10 to gradually decrease until the exhaust gas temperature is not greater than the second safe temperature value; control the electric heating power of the electric heating module 10 to gradually increase until the electric heating The electric heating power of the heating module 10 is greater than the heating power of the heat pump system, wherein the second safe temperature value is smaller than the first safe temperature value.

According to an embodiment of the present invention, the control device 320 further includes a calculation module, which calculates the accumulated working time of the electric heating module 10 according to the required heat in the drying mode and the electric heating power of the electric heating module 10; the control module 321 is also used for controlling The electric heating module 10 continues to work for the accumulated working time until the drying mode ends.

According to an embodiment of the present invention, the control module 321 is further configured to control the power of the compressor 21 of the heat pump system to gradually decrease until the exhaust gas temperature is not greater than the second safe temperature value; control the power of the compressor 21 of the heat pump system to gradually return to normal value, wherein the second safe temperature value is less than the first safe temperature value.

The optional embodiments of the embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical idea of the embodiments of the present invention, the The technical solution undergoes a variety of simple modifications, and these simple modifications all belong to the protection scope of the embodiments of the present invention. For example, the control method of the clothes treating apparatus of the present invention judges whether the heat pump system is normal through the temperature of the exhaust gas monitored by the temperature sensor 25, but it does not limit the protection scope of the control method of the clothes treating apparatus of the present invention. For example, the clothes treating apparatus of the present invention The control method can also judge whether the heat pump system is normal by the temperature of the hot air in the heating air duct 102, and this adjustment belongs to the protection scope of the control method of the clothing treatment device of the present invention.

In addition, it should be noted that each specific technical feature described in the above-mentioned specific implementation manner may be combined in any suitable manner under the circumstance that there is no contradiction. To avoid unnecessary repetition, various possible combinations are not further described in this embodiment of the present invention.

Those skilled in the art can understand that all or part of the steps in the method of the above embodiments can be completed by instructing the relevant hardware through a program, and the program is stored in a memory 310 and includes several instructions to make a (which can be a single-chip microcomputer, chip, etc.) or a control device 320 (such as a processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned memory 310 includes: U disk, removable hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

A control method of a clothes treatment device, characterized in that the control method comprises:

According to the clothes treatment device being in the drying mode, the electric heating amount of the electric heating module of the clothes treatment device is controlled to be greater than the heating amount of the heat pump system of the clothes treatment device in the whole drying cycle;

obtaining the exhaust gas temperature of the heat pump system, and comparing the exhaust gas temperature with the first safe temperature value of the heat pump system;

According to the exhaust gas temperature being greater than the first safe temperature value, the state of the electric heating module and/or the heat pump system is adjusted until the exhaust gas temperature is not greater than the first safe temperature value.
The control method of a laundry treatment apparatus according to claim 1, wherein the state of the electric heating module and/or the heat pump system is adjusted according to the exhaust gas temperature being greater than the first safe temperature value Until the exhaust gas temperature is not greater than the first safe temperature value includes:

controlling the electric heating module to be turned off until the exhaust gas temperature is not greater than a second safe temperature value;

controlling the electric heating module to be turned on again and the electric heating power of the electric heating module is greater than the heating power of the heat pump system,

Wherein, the second safe temperature value is smaller than the first safe temperature value.
The control method of a laundry treatment apparatus according to claim 1, wherein the state of the electric heating module and/or the heat pump system is adjusted according to the exhaust gas temperature being greater than the first safe temperature value Until the exhaust gas temperature is not greater than the first safe temperature value includes:

controlling the electric heating power of the electric heating module to gradually decrease until the exhaust gas temperature is not greater than a second safe temperature value;

controlling the electric heating power of the electric heating module to gradually increase until the electric heating power of the electric heating module is greater than the heating power of the heat pump system,

Wherein, the second safe temperature value is smaller than the first safe temperature value.
The control method of the laundry treatment device according to claim 1, wherein the control method further comprises:

Calculate the cumulative working time of the electric heating module according to the required heat of the drying mode and the electric heating power of the electric heating module;

The electric heating module is controlled to continue working for the accumulated working time until the drying mode ends.
The control method of the laundry treatment device according to claim 1, wherein the control method further comprises:

Calculate the cumulative working time of the electric heating module according to the required heat of the drying mode and the electric heating power of the electric heating module;

The electric heating module is controlled to operate in an interval operation mode or a PID control mode for the accumulated operation time in combination with the exhaust gas temperature of the heat pump system.
The control method of a laundry treatment apparatus according to claim 1, wherein the state of the electric heating module and/or the heat pump system is adjusted according to the exhaust gas temperature being greater than the first safe temperature value Until the exhaust gas temperature is not greater than the first safe temperature value also includes:

gradually reducing the power of the compressor controlling the heat pump system until the exhaust gas temperature is not greater than a second safe temperature value;

the power of the compressor controlling the heat pump system is gradually restored to a normal power value,

Wherein, the second safe temperature value is smaller than the first safe temperature value.
A control device for a clothes treatment device, wherein the control device is configured to execute the control method for the clothes treatment device according to claim 1, and the control device comprises:

a control module, configured to control the electric heating amount of the electric heating module of the clothes treatment device to be greater than the heating amount of the heat pump system of the clothes treatment device in the whole drying cycle according to the clothes treatment device being in the drying mode;

a comparison module, configured to acquire the exhaust gas temperature of the heat pump system, and compare the exhaust gas temperature with the first safe temperature value of the heat pump system;

The control module is further configured to adjust the state of the electric heating module and/or the heat pump system according to the exhaust gas temperature being greater than the first safe temperature value until the exhaust gas temperature is not greater than the first safe temperature value temperature value.
A controller, characterized in that, the controller comprises a memory and a control device of the laundry treatment apparatus according to claim 7, wherein instructions are stored in the memory, and when the control device executes the instructions, The control method of the laundry treating apparatus of claim 1.
A clothes treatment device, characterized in that the clothes treatment device comprises:

clothes dryers, for holding laundry;

a heat pump system, the heat pump system includes a compressor and a heat exchange device, the heat exchange device communicates with the heating air duct of the clothes dryer;

an electric heating module, which is arranged in the heating air duct of the clothes dryer;

A temperature sensor, arranged on the discharge side of the compressor, used for monitoring the discharge temperature of the compressor, and sending the monitored discharge temperature to a controller, the controller according to claim 8 the controller.
The clothes treating apparatus according to claim 9, wherein the displacement of the compressor is not greater than 8.2cc, and the electric heating power threshold of the electric heating module is 300W-1600W.
The clothes treating apparatus according to claim 9, wherein the heat pump system further comprises a mounting seat, the compressor is disposed on the mounting seat, and the heat dissipation of the compressor is not disposed on the mounting seat fan.