CN115787270A - Air duct system, roller assembly, clothes drying equipment and control method - Google Patents
Air duct system, roller assembly, clothes drying equipment and control method Download PDFInfo
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- CN115787270A CN115787270A CN202211526139.0A CN202211526139A CN115787270A CN 115787270 A CN115787270 A CN 115787270A CN 202211526139 A CN202211526139 A CN 202211526139A CN 115787270 A CN115787270 A CN 115787270A
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- 238000001035 drying Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009423 ventilation Methods 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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Abstract
The invention provides an air duct system, a roller assembly, clothes drying equipment and a control method, relates to the technical field of clothes drying equipment, and solves the technical problem of uneven drying caused by air inlet in a single direction of a heat pump clothes dryer in the prior art. The air duct system comprises a circulating air duct and an air duct switching device arranged on the circulating air duct and used for changing the flow direction of air flow, wherein a first air opening and a second air opening which are communicated with the roller are formed in the circulating air duct, and the air flow in the circulating air duct can enter the roller from the first air opening and flow out from the second air opening or enter the roller from the second air opening and flow out from the first air opening through the air duct switching device. Usually first wind gap and second wind gap set up respectively in the place ahead and the rear of cylinder, can change the air current flow direction through wind channel auto-change device, let hot-blast both can follow cylinder the place ahead and get into the rear and come out, also can follow cylinder rear and get into the place ahead and come out, enable the drying roller underwear thing stoving degree of consistency better, promote stoving speed.
Description
Technical Field
The invention relates to the technical field of clothes drying equipment, in particular to an air duct system, a roller assembly, clothes drying equipment and a control method.
Background
When clothes are dried in the heat pump clothes dryer, hot air generally enters from the front or the back of the drum, hot and wet air after heat and moisture exchange with the clothes exits from the back or the front of the drum, and the hot air entering the drum has high temperature, small moisture content and stronger moisture absorption capacity; the temperature of the air leaving the roller is low, the moisture content is large, and the moisture absorption capacity is poor.
Because the air inlet and the air outlet of a drum of a common heat pump clothes dryer are relatively fixed, clothes at an air inlet of the drum are dried faster, and clothes at an air outlet of the drum are dried slower, especially when more clothes exist, the clothes are not rolled smoothly in the drum, so that the drying uniformity is poor, the clothes at an inlet part of the drum are always completely dried, and the water content of the clothes at the air outlet part of the drum is higher. Because the dryness degree detection device of the heat pump clothes dryer is arranged at the air inlet of the roller, the drying unevenness often causes the drying judgment error, namely, when the clothes at the rear part of the roller are not dried, the drying judgment device judges the drying.
In order to avoid the situation, some technologies can compensate the drying judgment temperature, and the aim is to enable the clothes dryer to run for a longer time and avoid the drying judgment in advance, but the clothes at the air inlet part of the drum is inevitably dried, so that the wrinkles of the clothes are more and the drying quality is poor.
Disclosure of Invention
The invention aims to provide an air duct system, a roller assembly, clothes drying equipment and a control method, and aims to solve the technical problem of uneven drying caused by single-direction air inlet of a heat pump clothes dryer in the prior art 。 The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the above object, according to a first aspect of the embodiments of the present invention, the present invention provides an air duct system, including a circulating air duct and an air duct switching device disposed on the circulating air duct for changing a flow direction of an air flow, wherein:
and a first air opening and a second air opening which are communicated with the roller are formed on the circulating air duct, and the air flow in the circulating air duct can enter the roller from the first air opening and flow out from the second air opening or enter the roller from the second air opening and flow out from the first air opening through the air duct switching device.
As an optional embodiment of the present invention, the circulating air duct includes a fan air-out channel, a first roller connecting air duct, a second roller connecting air duct, and a fan air-in channel, the air duct switching device is disposed at a connection position of the fan air-out channel, the first roller connecting air duct, the second roller connecting air duct, and the fan air-in channel, the first roller connecting air duct is configured with the first air opening, and the second roller connecting air duct is configured with the second air opening.
As an optional implementation manner of the present invention, the air duct switching device includes a main body and a switching component disposed inside the main body, the switching component has a first switching position and a second switching position, the switching component in the first switching position enables the fan outlet channel to communicate with the first drum to connect to the air duct so that the air flow can enter the drum through the first air opening, and the switching component in the second switching position enables the fan outlet channel to communicate with the second drum to connect to the air duct so that the air flow can enter the drum through the second air opening.
As an optional embodiment of the present invention, the body portion is provided with four connecting ports respectively communicated with the fan air outlet channel, the first drum connecting air channel, the second drum connecting air channel and the fan air inlet channel, and the four connecting ports form a cross-shaped four-way structure.
As an optional embodiment of the present invention, the switching assembly includes a wind plate and a reversing driving member, the wind plate is rotatably disposed in the body portion, and the reversing driving member is drivingly connected to the wind plate and can drive the wind plate to rotate in the body portion to the first switching position or the second switching position.
As an optional implementation manner of the present invention, the air duct switching device includes a three-way switching structure, the blower air outlet channel, the first drum connecting air duct, and the second drum connecting air duct, and the first drum connecting air duct, the second drum connecting air duct, and the blower air inlet channel are all connected by the three-way switching structure, and the blower air outlet channel and the blower air inlet channel can be switched to be communicated with the first drum connecting air duct or the second drum connecting air duct by the corresponding three-way switching structure.
As an optional implementation manner of the present invention, the air channel switching device includes a two-way switching valve, and one of the two-way switching valves is respectively disposed between the fan air outlet channel and the first drum connecting air channel, between the fan air outlet channel and the second drum connecting air channel, between the fan air inlet channel and the first drum connecting air channel, and between the fan air inlet channel and the second drum connecting air channel.
According to a second aspect of the embodiments of the present invention, there is provided a drum assembly, including a drum and the air duct system, wherein air is supplied into the drum through a first air opening or a second air opening of the air duct system to dry clothes in the drum.
As an optional embodiment of the present invention, two ventilation openings are disposed on the drum and are communicated with the inside of the drum, wherein one ventilation opening is communicated with the first air opening, and the other ventilation opening is communicated with the second air opening.
According to a third aspect of an embodiment of the present invention, there is provided a clothes drying apparatus including a drum assembly, which is the above-described drum assembly.
As an optional embodiment of the invention, the clothes drying equipment comprises a heat pump clothes dryer or a heat pump washing and drying all-in-one machine.
According to a fourth aspect of the embodiments of the present invention, there is provided a control method of a clothes drying apparatus for controlling the clothes drying apparatus described above, including the steps of:
s1, starting a drying program of a clothes dryer;
s2, controlling the air channel switching device to enable air flow in the circulating air channel to enter the roller through the first air port and flow out through the second air port;
s3, after the operation is carried out for a preset time, controlling the air channel switching device to enable the air flow in the circulating air channel to enter the roller from the second air port and flow out from the first air port;
and S4, repeating the steps S2-S3 until the drying program is finished.
The air duct system comprises a circulating air duct and an air duct switching device which is arranged on the circulating air duct and used for changing the flow direction of air flow, wherein a first air opening and a second air opening which are communicated with a roller are formed in the circulating air duct, and the air flow in the circulating air duct can enter the roller from the first air opening and flow out from the second air opening or enter the roller from the second air opening and flow out from the first air opening through the air duct switching device. Usually first wind gap and second wind gap set up respectively in the place ahead and the rear of cylinder, that is to say, can change the air current flow direction through wind channel auto-change over device, let hot-blast both can get into the rear from cylinder the place ahead and come out, also can get into the place ahead from the cylinder rear and come out, solve the inhomogeneous problem of drying that heat pump dryer unidirectional air inlet leads to.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a first system of air intake method of a roller controlled by an air duct switching device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second system of air intake modes of a roller controlled by an air duct switching device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a third system of air intake method of a roller controlled by an air duct switching device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a fourth system of air intake method of a roller controlled by an air duct switching device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a fifth system of air intake method of a roller controlled by an air duct switching device according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a sixth system of a roller air intake mode controlled by an air duct switching device according to an embodiment of the present invention.
Reference numerals are as follows: 1. a fan air outlet channel; 2. the first roller is connected with the air duct; 3. the second roller is connected with the air duct; 4. a fan air inlet channel; 5. a fan; 6. a drum; 7. a body portion; 8. a wind plate; 9. a first tee joint switching structure; 10. a second tee joint switching structure; 11. a first two-way switching valve; 12. a second two-way switching valve; 13. a third two-way switching valve; 14. a fourth two-way switching valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1 to 6, the present invention provides an air duct system, which includes a circulating air duct and an air duct switching device disposed on the circulating air duct for changing the flow direction of an air flow, wherein a first air opening and a second air opening communicated with a roller 6 are formed on the circulating air duct, and the air flow in the circulating air duct can enter the roller 6 from the first air opening and flow out from the second air opening or enter the roller 6 from the second air opening and flow out from the first air opening through the air duct switching device.
When clothes are dried in the heat pump clothes dryer, hot air generally enters from the front or the rear of the drum 6, therefore, the first air opening and the second air opening in the embodiment are respectively arranged at the rear and the front of the drum 6, namely, the air flow direction can be changed through the air channel switching device, hot air can enter from the front of the drum 6 and then come out from the rear, and hot air can enter from the rear of the drum 6 and then come out from the front, so that the heat pump clothes dryer and the heat pump washing and drying all-in-one machine can be applied.
Specifically, the circulating air duct in this embodiment includes a fan air-out channel 1, a first drum connecting air duct 2, a second drum connecting air duct 3, and a fan air-in channel 4, where the fan air-out channel 1 is communicated with an air outlet of the fan 5, the fan air-in channel 4 is communicated with an air inlet of the fan 5, a first air port is configured on the first drum connecting air duct 2, a second air port is configured on the second drum connecting air duct 3, a vent communicated with the first air port and the second air port is also provided on the drum 6, and the air duct switching device is disposed at a connection portion of the fan air-out channel 1, the first drum connecting air duct 2, the second drum connecting air duct 3, and the fan air-in channel 4.
In a specific implementation process of the embodiment of the present invention, as shown in fig. 1 and fig. 2, the air duct switching device includes a body portion 7 and a switching assembly disposed inside the body portion 7, where the switching assembly has a first switching position and a second switching position, the switching assembly in the first switching position enables the fan air outlet channel 1 to communicate with the first roller connecting air duct 2 so that the air flow can enter the roller 6 through the first air opening, and the switching assembly in the second switching position enables the fan air outlet channel 1 to communicate with the second roller connecting air duct 3 so that the air flow can enter the roller 6 through the second air opening.
In the exemplary embodiment, the body portion 7 is provided with four connecting ports, which are respectively communicated with the fan air outlet channel 1, the first roller connecting air channel 2, the second roller connecting air channel 3 and the fan air inlet channel 4, and the four connecting ports form a cross-shaped four-way structure.
The switching assembly in this embodiment includes a wind plate 8 and a reversing driving component, the wind plate 8 is rotatably disposed in the main body 7, and the reversing driving component is drivingly connected to the wind plate 8 and can drive the wind plate 8 to rotate in the main body 7 to a first switching position or a second switching position.
As an alternative embodiment of the present invention, the reversing driving component includes a connecting shaft and a reversing power component, one end of the connecting shaft is mounted on the wind plate 8, and the other end of the connecting shaft can penetrate through the body portion 7 and is connected with the reversing power component arranged outside the body portion 7, and the reversing power component can be a driving motor, that is, the reversing power component can drive the connecting shaft to rotate when rotating, and can drive the wind plate 8 to rotate from the first switching position to the second switching position through the connecting shaft, and can also drive the wind plate 8 to rotate from the second switching position to the first switching position through the connecting shaft.
Referring to fig. 1 and 2, the drum 6 is connected with the fan 5 through a circulating air duct, an air duct switching device is arranged on the circulating air duct between the drum 6 and the fan 5, ventilation openings are respectively arranged in front of and behind the drum 6, the first air opening is communicated with the ventilation opening in the rear of the drum 6, and the second air opening is communicated with the ventilation opening in the front of the drum 6.
In the first drying mode shown in fig. 1, the air duct switching device is adjusted to make the air plate 8 in the first switching position, so that AB is conducted and DC is conducted, and at this time, hot air enters the drum 6 from the rear of the drum 6, and leaves from the front of the drum 6 after exchanging heat and humidity with the laundry in the drum 6. The circulating air flow direction is as follows: fan 5 (air outlet) → fan air outlet channel 1 → air duct switching device AB end → first roller connecting air duct 2 → vent opening behind roller 6 → vent opening in front of roller 6 → second roller connecting air duct 3 → air duct switching device DC end → fan air inlet channel 4 → fan 5 (air inlet), completing a cycle.
At the moment, hot air enters from the rear of the roller 6, leaves from the front of the roller 6, and clothes in the rear half space of the roller 6 are subjected to heat and moisture exchange with hot air with higher temperature and stronger moisture absorption capacity, so that the drying speed is higher; the clothes in the front half space of the roller 6 exchange heat and moisture with air with lower temperature and poorer moisture absorption capacity, and the drying speed is lower.
In the drying process, after the above-mentioned mode (the wind plate 8 is in the first switching position) is operated for a period of time, the dryness of the clothes in the drum 6 will be uneven to some extent, at this time, the wind channel switching device is adjusted, as shown in the second drying mode shown in fig. 2, so that the AD is conducted, the BC is conducted, at this time, the hot wind enters the drum 6 from the front of the drum 6, and leaves from the rear of the drum 6 after performing heat and moisture exchange with the clothes in the drum 6. The circulating air flow direction is as follows: fan 5 (air outlet) → fan air outlet channel 1 → air duct switching device AD end → second drum connecting air duct 3 → ventilation opening in front of drum 6 → ventilation opening in rear of drum 6 → first drum connecting air duct 2 → air duct switching device BC end → fan air inlet channel 4 → fan 5 (air inlet), completing a cycle.
At the moment, hot air enters from the front of the roller 6, leaves from the rear of the roller 6, and clothes in the space of the front half part of the roller 6 and hot air with higher temperature and stronger moisture absorption capacity are subjected to heat and moisture exchange, so that the drying speed is higher; the clothes in the rear half space of the drum 6 are subjected to heat and moisture exchange with air with lower temperature and poorer moisture absorption capacity, and the drying speed is lower.
In a complete drying process, the clothes in the drying roller 6 can be dried with good uniformity by switching the drying mode I and the drying mode II for multiple times, and the drying speed is increased.
In addition, the air duct switching device in the present invention may be implemented by a plurality of three-way switching valves or a plurality of two-way switching valves.
As shown in fig. 3 and 4, the air duct switching device in this embodiment includes two three-way switching structures, the three-way switching structure is a three-way switching valve, which is respectively a first three-way switching structure 9 and a second three-way switching structure 10, the fan air outlet channel 1 in the circulating air duct, the first roller connecting air duct 2 and the second roller connecting air duct 3, and the first roller connecting air duct 2 are connected through the first three-way switching structure 9, the second roller connecting air duct 3 and the fan air inlet channel 4 are connected through the second three-way switching structure 10, the fan air outlet channel 1 can be switched to be communicated with the first roller connecting air duct 2 or the second roller connecting air duct 3 through the first three-way switching structure 9, and the fan air inlet channel 4 can be switched to be communicated with the second roller connecting air duct 3 or the first roller connecting air duct 2 through the second three-way switching structure 10.
In the drying mode shown in fig. 3, hot air enters drum 6 from the rear of drum 6, exchanges heat and moisture with laundry in drum 6, and leaves drum 6 from the front. The circulating air flow direction is as follows: the blower 5 (air outlet) → the blower air outlet channel 1 → the first three-way switching structure 9EF end → the first roller connecting air duct 2 → the vent opening behind the roller 6 → the vent opening in front of the roller 6 → the second roller connecting air duct 3 → the second three-way switching structure 10JH end → the blower air inlet channel 4 → the blower 5 (air inlet), completing one cycle.
In the drying mode shown in fig. 4, hot air enters drum 6 from the front of drum 6, exchanges heat and moisture with laundry in drum 6, and leaves drum 6 from the rear. The circulating air flow direction is as follows: the blower 5 (air outlet) → the blower air outlet channel 1 → the first three-way switching structure 9EG end → the second drum connecting air duct 3 → the vent in front of the drum 6 → the vent in rear of the drum 6 → the first drum connecting air duct 2 → the second three-way switching structure 10IH end → the blower air inlet channel 4 → the blower 5 (air inlet), completing one cycle.
In a complete drying process, the drying mode shown in fig. 3 and the drying mode shown in fig. 4 are switched for a plurality of times, so that the clothes in the drying drum 6 can be dried with good uniformity, and the drying speed is increased.
As shown in fig. 5 and 6, the air duct switching device in this embodiment includes four two-way switching valves, and two-way switching valves are respectively disposed between the fan air outlet channel 1 and the first roller connecting air duct 2, between the fan air outlet channel 1 and the second roller connecting air duct 3, between the fan air inlet channel 4 and the first roller connecting air duct 2, and between the fan air inlet channel 4 and the second roller connecting air duct 3.
Specifically, the four two-way switching valves are a first two-way switching valve 11, a second two-way switching valve 12, a third two-way switching valve 13, and a fourth two-way switching valve 14, respectively. A first two-way switching valve 11 is arranged between the fan air outlet channel 1 and the first roller connecting air channel 2, a second two-way switching valve 12 is arranged between the fan air outlet channel 1 and the second roller connecting air channel 3, a third two-way switching valve 13 is arranged between the fan air inlet channel 4 and the first roller connecting air channel 2, and a fourth two-way switching valve 14 is arranged between the fan air inlet channel 4 and the fourth roller 6 connecting air channel.
In the drying mode shown in fig. 5, hot air enters drum 6 from the rear of drum 6, exchanges heat and moisture with laundry in drum 6, and leaves drum 6 from the front. The circulating air flow direction is as follows: the blower 5 (air outlet) → the blower air outlet passage 1 → the first two-way switching valve 11 → the first drum connecting air passage 2 → the vent opening at the rear of the drum 6 → the vent opening at the front of the drum 6 → the second drum connecting air passage 3 → the fourth two-way switching valve 14 → the blower air inlet passage 4 → the blower 5 (air inlet), completing one cycle.
In the drying mode shown in fig. 6, hot air enters drum 6 from the front of drum 6, exchanges heat and moisture with laundry in drum 6, and leaves drum 6 from the rear. The circulating air flow direction is as follows: the blower 5 (air outlet) → the blower air outlet passage 1 → the second two-way switching valve 12 → the second drum connecting duct 3 → the vent opening in the front of the drum 6 → the vent opening in the rear of the drum 6 → the first drum connecting duct 2 → the third two-way switching valve 13 → the blower air inlet passage 4 → the blower 5 (air inlet), completing one cycle.
In a complete drying process, the drying mode shown in fig. 5 and the drying mode shown in fig. 6 are switched for a plurality of times, so that the clothes in the drying drum 6 can be dried with good uniformity, and the drying speed is increased.
The hot air is not limited to entering the drum 6 from behind the drum 6 or entering the drum 6 from in front of the drum 6. The purpose is through the wind channel auto-change over device that sets up, and it is out that hot-blast both can get into the rear from 6 the place ahead of cylinder, also can get into the place ahead from 6 rear of cylinder and come out, solves the current pump dryer live heat pump washing and drying all-in-one of heat and dries the clothing equipment because single direction air inlet and lead to drying inhomogeneous problem.
According to another aspect of the present invention, there is provided a roller 6 assembly comprising a roller 6 and the air duct system described above.
The front and the rear of the roller 6 are respectively provided with a vent communicated with the inside of the roller, wherein the vent at the rear (or the front) of one roller 6 is communicated with the first air port, and the vent at the front (or the rear) of the roller 6 is communicated with the second air port. And then the air is supplied into the roller 6 through the first air opening or the second air opening on the air duct system so as to dry the clothes in the roller 6.
In addition, the invention also provides a clothes drying device which comprises the roller 6 assembly.
As an optional embodiment of the invention, the clothes drying equipment comprises a heat pump clothes dryer or a heat pump washing and drying all-in-one machine. The roller 6 is connected with the fan 5 through a circulating air duct, and an air duct switching device is arranged on the circulating air duct between the roller 6 and the fan 5, so that the air inlet direction of the roller 6 is switched.
The drying control method is mainly used for controlling the clothes drying equipment and comprises the following steps:
s1, starting a drying program of a clothes dryer;
s2, controlling the air duct switching device to enable air flow in the circulating air duct to enter the roller 6 through the first air opening and flow out through the second air opening;
s3, after the operation is carried out for the preset time, controlling the air channel switching device to enable the air flow in the circulating air channel to enter the roller 6 from the second air port and flow out from the first air port;
and S4, repeating the steps S2-S3 until the drying program is finished.
That is to say, in a complete drying process, switch many times between the preceding air-out mode of the air inlet in the place ahead of cylinder 6 rear and the air-out mode of the air inlet rear of the place ahead through controlling the wind channel auto-change over device to make the clothing stoving degree of consistency in letting drying cylinder 6 better, promote stoving speed.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. An air duct system, comprising a circulating air duct and an air duct switching device disposed on the circulating air duct for changing the flow direction of an air flow, wherein:
and a first air opening and a second air opening which are communicated with the roller are formed on the circulating air duct, and the air flow in the circulating air duct can enter the roller from the first air opening and flow out from the second air opening or enter the roller from the second air opening and flow out from the first air opening through the air duct switching device.
2. The air duct system according to claim 1, wherein the circulating air duct includes a fan outlet channel, a first roller connecting air duct, a second roller connecting air duct, and a fan inlet channel, the air duct switching device is disposed at a joint of the fan outlet channel, the first roller connecting air duct, the second roller connecting air duct, and the fan inlet channel, the first roller connecting air duct is configured with the first air opening, and the second roller connecting air duct is configured with the second air opening.
3. The air duct system according to claim 2, wherein the air duct switching device includes a main body and a switching component disposed inside the main body, the switching component has a first switching position and a second switching position, the switching component in the first switching position enables the fan outlet channel to communicate with the first roller connecting air duct so as to enable the air flow to enter the roller through the first air opening, and the switching component in the second switching position enables the fan outlet channel to communicate with the second roller connecting air duct so as to enable the air flow to enter the roller through the second air opening.
4. The air duct system according to claim 3, wherein the body portion is provided with four connecting ports respectively communicated with the fan air outlet channel, the first roller connecting air duct, the second roller connecting air duct and the fan air inlet channel, and the four connecting ports form a cross-shaped four-way structure.
5. The air duct system according to claim 3, wherein the switch assembly comprises a damper rotatably disposed within the body portion and a reversing drive member drivingly coupled to the damper and configured to rotate the damper within the body portion to the first switch position or the second switch position.
6. The air duct system according to claim 2, wherein the air duct switching device includes a three-way switching structure, the fan air-out channel, the first roller connecting air duct and the second roller connecting air duct, and the first roller connecting air duct, the second roller connecting air duct and the fan air-in channel are all connected by the three-way switching structure, and the fan air-out channel and the fan air-in channel can be switched to be communicated with the first roller connecting air duct or the second roller connecting air duct by the corresponding three-way switching structure.
7. The air duct system according to claim 2, wherein the air duct switching device comprises a two-way switching valve, and one of the two-way switching valve is disposed between the fan outlet channel and the first roller connecting air duct, between the fan outlet channel and the second roller connecting air duct, between the fan inlet channel and the first roller connecting air duct, and between the fan inlet channel and the second roller connecting air duct.
8. A roller assembly, comprising a roller and the air duct system according to any one of claims 1 to 7, wherein air is supplied into the roller through the first air opening or the second air opening of the air duct system to dry the clothes in the roller.
9. The roller assembly according to claim 8, wherein the roller is provided with two ventilation openings communicating with the interior thereof, one of the ventilation openings communicating with the first tuyere and the other ventilation opening communicating with the second tuyere.
10. A clothes drying apparatus comprising a roller assembly, wherein the roller assembly is the roller assembly of claim 8 or 9.
11. The clothes drying apparatus of claim 10, wherein the clothes drying apparatus comprises a heat pump clothes dryer or a heat pump washing and drying all-in-one machine.
12. A method for controlling a clothes drying apparatus according to claim 10 or 11, comprising the steps of:
s1, starting a drying program of a clothes dryer;
s2, controlling the air channel switching device to enable the airflow in the circulating air channel to enter the roller from the first air port and flow out from the second air port;
s3, after the operation is carried out for a preset time, controlling the air channel switching device to enable the air flow in the circulating air channel to enter the roller from the second air port and flow out from the first air port;
and S4, repeating the steps S2 to S3 until the drying program is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211526139.0A CN115787270A (en) | 2022-11-30 | 2022-11-30 | Air duct system, roller assembly, clothes drying equipment and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211526139.0A CN115787270A (en) | 2022-11-30 | 2022-11-30 | Air duct system, roller assembly, clothes drying equipment and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115787270A true CN115787270A (en) | 2023-03-14 |
Family
ID=85444225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211526139.0A Pending CN115787270A (en) | 2022-11-30 | 2022-11-30 | Air duct system, roller assembly, clothes drying equipment and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115787270A (en) |
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2022
- 2022-11-30 CN CN202211526139.0A patent/CN115787270A/en active Pending
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