CN111335000A - Clothes drying device and control method thereof - Google Patents

Abstract

The invention discloses a clothes drying device and a control method of the clothes drying device, and relates to the technical field of clothes processing equipment. The clothes drying device comprises a box body and a compressor arranged in the box body, and further comprises a fan, wherein the fan is configured to enable gas in the box body to flow through the compressor and be extracted. In the clothes drying device, the damp and hot air in the box body can be discharged out of the box body through the fan, so that the damp and hot air can be prevented from condensing at the display panel, and other positions in the box body can be prevented from condensing into water drops. And the damp and hot air passes through the compressor in the process of being discharged, so that the effect of cooling the compressor can be achieved, a fan is prevented from being additionally arranged in the box body, and the cost of the whole machine is favorably reduced.

Description

Clothes drying device and control method thereof

technical field

The present invention relates to the technical field of clothes processing equipment, and in particular, to a clothes drying device and a control method of the clothes drying device.

Background technique

Clothes drying devices such as clothes dryers generally use a heat pump system to dry clothes. The heat pump system has a complete air path to evaporate the moisture of wet clothes through high temperature air. During the operation of the dryer, due to the coordination problem of the drum and other structures, a part of the hot and humid steam will escape from the drum. Due to the temperature difference between the inside and outside, the hot and humid steam condenses into water on the relatively low temperature display screen and the surface of the box. The water vapor on the display screen causes the display to be unclear, and the long-term high humidity environment affects the performance of the computer board. Condensed water running down on the box can soak the floor.

At present, in the prior art, an exhaust fan is generally added at the display panel, and the hot and humid steam is exhausted through the fan. However, this solution adds an additional fan, which increases the cost of the whole machine, and the exhaust fan can only prevent the condensation of water vapor at the display panel, and cannot improve the condensation of water vapor in other parts of the box.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a clothes drying device, which can prevent the hot and humid air from condensing on the box or the display panel without increasing the cost.

For this purpose, the present invention adopts the following technical solutions:

A clothes drying device includes a box body and a compressor disposed in the box body, the clothes drying device further includes a fan, and the fan is configured to enable gas in the box to flow through the compression machine and pull out.

Wherein, the clothes drying device further includes:

a controller, connected with the fan, for controlling the fan to work in an intermittent manner.

Wherein, the clothes drying apparatus further includes a detection component connected to the controller, and the detection component is configured to detect humidity, temperature and/or water level in the box.

Wherein, the detection component includes a humidity sensor, a temperature sensor and/or a liquid level gauge.

Wherein, the clothes drying device further includes a detection component and a drainage pump, the detection component is connected to the controller, the detection component is used for detecting the start and stop of the drainage pump, and the controller controls the fan Start and stop synchronously with the drainage pump.

Wherein, the clothes drying device is a clothes dryer or an all-in-one washing and drying machine.

Another object of the present invention is to provide a control method of a clothes drying device, which can prevent hot and humid air from condensing on the cabinet or the display panel without increasing the cost.

For this purpose, the present invention adopts the following technical solutions:

A control method of a clothes drying device, the air in a box is drawn out by a fan, and the air flows through a compressor.

Wherein, the fan is controlled to work in an intermittent manner according to changes in humidity, temperature and/or water level in the box.

Wherein, when the temperature, humidity and/or water level in the box is higher than a first preset value, the fan is started; when the temperature, humidity and/or water level in the box is lower than a second preset value , the fan stops working, wherein the first preset value is greater than the second preset value.

Beneficial effects: The present invention provides a clothes drying device and a control method of the clothes drying device. In the clothes drying device, by setting a fan, the humid and hot air in the box can be discharged out of the box, which can not only prevent the humid and hot air from condensing at the display panel, but also avoid condensation in other places in the box to form water droplets. In addition, the hot and humid air passes through the compressor in the process of discharging, which can play the role of cooling the compressor, avoid additional fans in the box, and help reduce the cost of the whole machine.

Description of drawings

Fig. 1 is the change curve of temperature, humidity and dew point temperature with time when the gas of the clothes drying device provided by the present invention is drawn out of the box;

Fig. 2 is a flow chart of a control method of a clothes drying device provided by the present invention.

in:

a. Variation curve of the humidity of the gas extracted outside the box with time; b. Variation curve of the temperature of the gas extracted outside the box with time; c. Variation curve of the dew point temperature of the gas extracted outside the box with time.

Detailed ways

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

This embodiment provides a clothes drying device, and the clothes drying device may be a clothes dryer or an all-in-one washing and drying machine. In this embodiment, a clothes dryer is used as an example for introduction.

The clothes dryer includes a box and a drum and a heat pump assembly disposed in the box. A circulating air duct is formed between the heat pump assembly and the drum. The heat pump assembly generates high-temperature air, and the high-temperature air enters the drum to heat the clothes and evaporate the moisture in the clothes to obtain moist and hot air. The moist and hot air passes through the heat pump assembly to form dry high-temperature air, which continues to enter the drum to dry the clothes.

Among them, the heat pump assembly includes a compressor, a condenser and an evaporator. When the heat pump assembly is operating, the compressor will heat up. In order to ensure the working efficiency of the heat pump assembly, a fan is also installed in the dryer. The fan is installed adjacent to the compressor. When the fan is working, the air outside the box is drawn into the box to reduce the temperature of the compressor.

During the operation of the dryer, some of the hot and humid air in the box will condense into water on the side wall of the box and the display panel of the dryer, and the condensed water will affect the work of the display panel and other components. The side wall of the box slides down, which will wet the bottom plate and affect the user's experience.

In the prior art, an additional fan is generally added near the display panel, and the hot and humid air is blown away from the accessories of the display panel by the fan, thereby preventing the hot and humid air from condensing into water on the display panel. However, this solution not only increases the cost of the dryer, but also needs to modify the internal structure of the dryer, and the additional fan only acts on the hot and humid air near the display panel, but cannot relieve the condensation of water vapor in other parts of the cabinet.

In order to solve the above problem, in this embodiment, the fan located near the compressor is reversely arranged, so that when the fan is working, the gas in the box is drawn out of the box, so as to realize the discharge of hot and humid air, and avoid the condensation of hot and humid air in the box. into water. In addition, since the fan is arranged close to the compressor, when the gas flows out of the box, it passes near the compressor, which also has the effect of cooling the compressor.

In this embodiment, by improving the setting of the original fan in the dryer, the fan can realize the discharge of hot and humid air on the basis of cooling the compressor, which has dual functions and does not increase the cost of the dryer.

When the fan is working, the hot and humid air is discharged out of the box, and at the same time, a negative pressure is generated in the box, and the air outside the box automatically enters the box under the action of the pressure difference. In this process, the problems inside the box will be reduced, which will have a certain impact on the heating efficiency of the heat pump assembly.

In order to reduce the influence of the operation of the fan on the operation of the heat pump assembly, in this embodiment, the clothes dryer further includes a controller, and the controller is electrically connected to the fan to control the start and stop of the fan, and to make the fan work intermittently.

Specifically, when the working state of the dryer tends to be stable, that is, when the temperature and/or humidity in the drum is within a certain range, the working efficiency of the dryer is the highest. In this state, the moisture in the clothes begins to separate out, and enters the air to form hot and humid air. When the dryer is in this stable state, the fan starts to discharge the hot and humid air in the box to prevent water vapor from condensing into water. The water vapor is saturated to ensure the drying effect of the dryer.

When the temperature and/or humidity in the drum is lower than a certain range, less moisture is released from the clothes in the drum, and the fan can stop working at this time, thereby reducing the influence of overwork of the fan on the drying efficiency of the clothes.

With the operation of the fan, the change curve of the humidity of the gas outside the box with time a, the change curve b of the temperature of the gas outside the box with time, and the change curve of the dew point temperature of the gas outside the box with time c As shown in Figure 1, the abscissa in Figure 1 is time, and the unit is s, and the ordinate is temperature, and the unit is °C. With the extension of the working time of the fan, the humidity of the gas drawn out of the box gradually decreases, and the temperature and dew point temperature gradually increase and become stable.

To achieve accurate fan start and stop, the dryer also includes a detection component. The detection component may be a humidity sensor for detecting humidity in the box. The humidity sensor transmits the humidity information detected in the box to the controller. A preset humidity value is stored in the controller. When the received humidity signal is greater than the first preset value, the water vapor content in the hot and humid air is large, which is easy to condense into water. Hot and humid air from the body is expelled. With the start of the fan, the humidity value in the box gradually increases, and when the received humidity signal is less than the second preset value, the controller controls the fan to stop working. Wherein, the first preset value is greater than the first preset value, and both are corresponding humidity values. The first preset value and the first preset value may be set according to specific parameters of the dryer, and the preset values set by different models of dryers may be different.

In other embodiments, the on and off of the fan can also be controlled by detecting the temperature and water level in the box. When the water analysis efficiency of the clothes in the dryer is high, the corresponding temperature in the box is high. Therefore, the opening of the fan can be controlled by detecting the temperature change in the box. At this time, the detection component can be a temperature sensor, and the corresponding The first preset value and the second preset value set in the controller are preset temperature values.

Similarly, when the water analysis efficiency of the clothes in the dryer is high, more water is generated by drying the clothes in the cabinet. Therefore, the turning on of the fan can be controlled by detecting the water level in the cabinet. In this case, the detection component may be a liquid level gauge, and the first preset value and the second preset value set in the corresponding controller are preset liquid level heights.

The detection component can also detect the working state of the drainage pump, and the controller controls the start and stop of the fan through the working state of the drainage pump. Specifically, when the detection component detects that the drain pump is turned on, it sends an electrical signal to the controller, and the controller controls the fan to turn on according to the received electrical signal. When there is a lot of water in the clothes in the box, there is more water accumulated in the box, the dryer is in a stable working state, and there is more moisture in the humid and hot air in the box. At this time, turning on the fan can prevent water vapor from condensing. When the detection component detects that the drain pump is stopped, the detection component sends an electrical signal to the controller, and the controller controls the fan to stop working to prevent the fan from affecting the drying efficiency of the heat pump component.

In other embodiments, the controller may also integrate the changes of at least two of temperature, humidity and water level to control the start and stop of the fan, the principle of which is the same as that described above, and will not be repeated here.

As shown in FIG. 2 , the present embodiment also provides a method for controlling a clothes drying device. The air in the box is drawn out by controlling the fan to be turned on, and the air flows through the compressor. When the fan is started, it can not only discharge the hot and humid air in the box to prevent water vapor from condensing into water in the box, but also play the role of cooling the compressor, so as to ensure the normal operation of the heat pump assembly.

In order to prevent the fan from working for a long time and affecting the drying efficiency of the heat pump assembly, the fan can control the start and stop of the fan according to the changes in the humidity, temperature and/or water level in the cabinet, so as to effectively reduce the effect of overwork of the fan on the dryer.

In this embodiment, it is similar to control the distance between start and stop of the fan based on humidity, temperature or water level, and the humidity is used as an example for description here.

When the dryer is working, it detects changes in the humidity of the air in the box in real time, and compares the detected humidity with the first preset value preset in the program. When the detected humidity is greater than the first preset value, the The water vapor content is high, and it is easy to be pre-condensed into water. At this time, the fan is turned on to discharge the hot and humid air in the box. During this process, the water vapor and hot and humid air in the box gradually decrease, the humidity decreases, and the probability of water vapor condensing into water is reduced. When the humidity in the box is lower than the second preset value, the fan stops working. In other embodiments, the start and stop of the fan may also be synchronized with the drain pump in the dryer.

The above contents are only preferred embodiments of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific embodiments and application scope. limits.

Claims (9)

1. A clothes drying device, comprising a box body and a compressor arranged in the box body, wherein the clothes drying device further comprises a fan, and the fan is configured to enable the Gas flows through the compressor and is extracted. 2. The clothes drying device according to claim 1, wherein the clothes drying device further comprises: a controller, connected with the fan, for controlling the fan to work in an intermittent manner. 3. The laundry drying device according to claim 2, wherein the laundry drying device further comprises a detection component, the detection component is connected with the controller, and the detection component is configured to detect the Humidity, temperature and/or water level inside the enclosure. 4. The clothes drying apparatus according to claim 3, wherein the detection component comprises a humidity sensor, a temperature sensor and/or a liquid level gauge. 5. The clothes drying device according to claim 2, wherein the clothes drying device further comprises a detection component and a drain pump, the detection component is connected to the controller, and the detection component is used for detecting When the drain pump starts and stops, the controller controls the fan to start and stop synchronously with the drain pump. 6 . The clothes drying device according to claim 1 , wherein the clothes drying device is a clothes dryer or an all-in-one washing and drying machine. 7 . 7. A method for controlling a clothes drying device, characterized in that the gas in the box is drawn out by a fan, and the gas flows through a compressor. 8 . The method for controlling a clothes drying device according to claim 7 , wherein the fan is controlled to work intermittently according to changes in humidity, temperature and/or water level in the box. 9 . 9. The method for controlling a clothes drying device according to claim 8, wherein when the temperature, humidity and/or water level in the box are higher than a first preset value, the fan is started; When the temperature, humidity and/or water level in the box is lower than a second preset value, the fan stops working, wherein the first preset value is greater than the second preset value.

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