CN219862018U

CN219862018U - Rear cover assembly and clothes drying equipment

Info

Publication number: CN219862018U
Application number: CN202321054558.9U
Authority: CN
Inventors: 巫志远; 马德荣; 牟秋启; 商勇; 谢邦明
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2023-05-05
Filing date: 2023-05-05
Publication date: 2023-10-20
Anticipated expiration: 2033-05-05

Abstract

The embodiment of the utility model provides a rear cover assembly and clothes drying equipment, wherein the rear cover comprises a cover shell, an air duct is arranged in the cover shell, and the air duct comprises a first air supply subarea and a second air supply subarea; the air duct switching mechanism comprises a driving mechanism and a baffle assembly, wherein the driving mechanism is directly or indirectly connected with the baffle assembly and drives the baffle assembly to selectively open or close the second air supply subarea; the detection switch is arranged in the rear cover and is at least used for detecting the position of the baffle assembly moving to the position of closing the second air supply subarea. The rear cover assembly provided by the embodiment of the utility model increases the air inlet amount in a targeted manner for the areas where clothes are difficult to dry, so that the difference of the drying degrees among different parts is reduced, and the uniformity of the drying effect is improved. The detection switch detects the position of the baffle assembly moving to the position of closing the second air supply subarea, determines the opening or closing state of the second air supply subarea, accurately positions the opening state of the air duct, and improves the working reliability of the rear cover assembly.

Description

Rear cover assembly and clothes drying equipment

Technical Field

The utility model relates to the technical field of clothes care, in particular to a rear cover assembly and clothes drying equipment.

Background

In the rotating process of the clothes drying cylinder of the clothes dryer, clothes close to the cylinder wall of the clothes drying cylinder can rotate along with the cylinder wall in a range of a larger central angle, and the clothes wrapped at the center close to the rotating axis are not easy to shake off and dry. In the related art, in order to increase the air inlet amount in the area where clothes are difficult to dry easily, the clothes are dried in a differential mode better, the driving mechanism is used for controlling the baffle to switch the air channel, the air supply to different parts of the clothes drying cylinder is realized, the uniformity of the drying effect is improved, but in the differential drying process, whether the air channel is switched in place cannot be accurately judged, the problem that part of clothes are too long or too short in drying time occurs, and the working reliability of the clothes dryer is reduced.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

Disclosure of Invention

Accordingly, the embodiment of the utility model is expected to provide a rear cover assembly and a clothes drying device, which accurately detect the switching state of the air duct and increase the working reliability of the rear cover assembly.

In order to achieve the above object, the technical solution of the embodiment of the present utility model is as follows:

a rear housing assembly, comprising:

the rear cover comprises a cover shell, wherein an air duct is arranged in the cover shell and comprises a first air supply subarea and a second air supply subarea;

the air duct switching mechanism comprises a driving mechanism and a baffle assembly, wherein the driving mechanism is directly or indirectly connected with the baffle assembly and drives the baffle assembly to selectively open or close the second air supply subarea;

the detection switch is arranged in the rear cover and is at least used for detecting the position of the baffle assembly moving to the position of closing the second air supply subarea.

In some embodiments, the detection switch has a contact disposed at a first preset position of the rear cover, the first preset position being a position where the shutter assembly moves to close the second supply sub-area, so that the contact can be touched when the shutter assembly moves to the first preset position.

In some embodiments, the housing includes a back plate and a side wall disposed along an edge of the back plate, and the drive mechanism, the baffle assembly, and the detection switch are all disposed on a same side of the back plate.

In some embodiments, the rear cover includes a spacer rib, the spacer rib is curvedly disposed in the air duct, a circumferential inner surface of the spacer rib defines the first air supply sub-area, a first end of the spacer rib is disposed between a second end of the spacer rib and defines an inlet of the first air supply sub-area, a circumferential outer surface of the spacer rib and an inner surface of the sidewall define the second air supply sub-area, and a first end of the spacer rib and/or a second end of the spacer rib is disposed spaced from the corresponding sidewall and defines an inlet of the second air supply sub-area.

In some embodiments, the detection switch is disposed on the spacer bar; and/or the detection switch is arranged on the side wall.

In some embodiments, the spacer rib comprises an arc-shaped sub rib and two guide ribs arranged at two ends of the arc-shaped sub rib, the two guide ribs extend along two ends of the arc-shaped sub rib towards directions close to each other, and at least one guide rib is provided with the detection switch.

In some embodiments, the baffle assembly includes at least a first baffle and a second baffle, the first end of the spacer rib is spaced apart from the sidewall to form a first inlet of the second supply sub-zone, the second end of the spacer rib is spaced apart from the sidewall to form a second inlet of the second supply sub-zone, the first baffle is configured to open or close the first inlet, and the second baffle is configured to open or close the second inlet.

In some embodiments, the baffle assembly includes at least a first baffle detachably abutting a first end of the spacer rib and a second baffle detachably abutting a second end of the spacer rib, the direction of oscillation of the first baffle being opposite to the direction of oscillation of the second baffle.

In some embodiments, the rear cover includes a partition portion, the partition portion divides the area enclosed by the surface of the back plate of the side wall into at least the air duct and the electric control part placement area, the electric control part placement area and the air duct are separately arranged, and the driving mechanism is arranged in the electric control part placement area.

An embodiment of the present utility model provides a clothes drying apparatus, including:

a laundry dryer drum having a laundry treatment chamber;

a rear plate;

a control device;

and the rear cover assembly is characterized in that the rear plate is arranged between the rear cover and the clothes drying cylinder, the cover is pressed on the rear plate and is in sealing fit with the rear plate, and the control device is used for determining that the second air supply subarea is in a closed state or an open state according to the information of the detection switch.

In some embodiments, the laundry dryer drum is provided with a first air inlet area in communication with the first air supply sub-area, a second air inlet area in communication with the second air supply sub-area, the second air inlet area surrounding the periphery of the first air inlet area.

In some embodiments, the drying mode of the drying apparatus comprises:

first clothes drying mode: the air duct switching mechanism closes the inlet of the second air supply subarea, and the clothes treatment cavity is used for supplying air from the first air inlet area;

second clothes drying mode: the air duct switching mechanism opens an inlet of the second air supply subarea, and the clothes treatment cavity is used for supplying air from the first air inlet area and the second air inlet area.

According to the rear cover assembly provided by the embodiment of the utility model, the air supply state of the rear cover is switched through the air duct switching mechanism, so that the selective air inlet of different parts of the clothes treatment cavity is realized, and the air inlet quantity can be increased in a targeted manner for the area where clothes are difficult to dry easily, so that the difference of the drying degrees among different parts is reduced, and the uniformity of the drying effect is improved. The detection switch detects the position of the baffle assembly moving to the position of closing the second air supply subarea, and determines the opening or closing state of the second air supply subarea, so that the opening state of the air duct is accurately positioned, the control of the air supply state of the rear cover is increased, and the drying problem caused by the uncertain air supply state due to the fact that the air duct switching mechanism is not in place in operation is solved.

Drawings

Fig. 1 is a schematic structural view of a clothes drying apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a rear hood assembly according to an embodiment of the present utility model, wherein the rear hood is in a second air supply state;

FIG. 3 is another schematic structural view of the rear cover assembly, wherein the rear cover is in a first air-supplying state;

fig. 4 is a schematic view of the structure of fig. 2 from another perspective.

Description of the reference numerals

1-a clothes drying cylinder; 1 a-a laundry treatment chamber; 11-a barrel rear cover; 12-a barrel body; 11 a-a first air intake zone; 11 b-a second air intake zone;

2-a rear cover assembly;

21-a rear cover; 211-a housing; 2111-backboard; 2112-sidewalls; 212-spacer ribs; 2121-arc-shaped sub-ribs; 2122-deflector bars; 212 a-a first end; 212 b-a second end; 21 a-an electric control part placement area; 21 b-a first supply air sub-area; 21 c-a second supply sub-zone; 21c' -first inlet; 21c "-a second inlet; 213-volute tongue;

22-a driving mechanism; 23' -a first baffle; 23 "-a second baffle; 24-driving piece; 25-connecting piece; 26-detecting a switch; 26 a-contacts;

3-back plate.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments of the present utility model and the technical features of the embodiments may be combined with each other, and the detailed description in the specific embodiments should be interpreted as an explanation of the gist of the present utility model and should not be construed as unduly limiting the present utility model.

In the description of the embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second" may include one or more such features, either explicitly or implicitly; in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" means two or more.

Referring to fig. 2 to 4, an embodiment of the present utility model provides a rear cover assembly 2 for a clothes drying apparatus.

Referring to fig. 1, an embodiment of the present utility model provides a clothes drying apparatus, which includes a box, a circulation duct, an impeller, a clothes drying cylinder 1 disposed in the box, a rear plate 3 disposed behind the clothes drying cylinder 1, a control device, and a rear cover assembly 2 according to any embodiment of the present utility model.

The laundry dryer drum 1 has a laundry treatment chamber 1a for placing laundry, and the front side of the laundry dryer drum 1 is open and defines a laundry putting opening. Illustratively, the laundry dryer cartridge 1 includes a body 12 and a rear cover 11, the rear cover 11 covering the rear end of the body 12.

The circulation duct communicates with the laundry treating chamber 1a to form an air flow circulation flow path, that is, an air flow circulates in the laundry treating chamber 1a.

The rear cover assembly 2 includes a rear cover 21, an air duct switching mechanism, and a detection switch 26.

The front side of the back cover 21 is open, the back plate 3 is arranged between the back cover 21 and the clothes drying cylinder 1, the back cover 21 comprises a cover shell 211, the cover shell 211 is arranged on the back plate 3 of the box body and forms sealing fit with the back plate 3, and therefore the probability of outward air leakage of air flow from the matching position of the back cover 21 and the clothes drying cylinder 1 is reduced.

Illustratively, a sealing member is attached to a surface of the rear cover 21, which contacts the rear plate 3, so that the sealing performance of the mating part of the rear cover 21 and the rear plate 3 is better.

The specific material of the seal is not limited, and includes, for example, but is not limited to, felt.

The housing 211 has therein an air duct which is located on the circulation duct and communicates with the laundry treating chamber 1a, that is, the air flow of the circulation duct flows through the inside of the rear cover assembly 2. I.e. the rear housing 21 is used for guiding the flow of the circulating air flow of the clothes drying apparatus.

The impeller is rotatably mounted in the air duct, and the rear cover 21 is air-fed from the front side in the axial direction of the impeller, and air-discharged in the circumferential direction of the impeller, that is, the cooperation of the impeller and the air duct, approximately forms a centrifugal fan structure.

The clothes drying equipment is provided with a condensing device for cooling and dehumidifying, a fan and a heating element for heating dehumidified gas on the circulating air channel, wherein the wind wheel is used for enabling air flow in the circulating air channel to form directional flow.

The clothes drying process and principle of the clothes drying equipment are as follows: the drying hot air flow enters the clothes treatment cavity 1a from the downstream of the circulating air duct, in the clothes treatment cavity 1a, the drying hot air flow flows through the surface of wet clothes to perform heat-moisture exchange with the wet clothes, moisture in the clothes is absorbed to become wet hot air flow, the wet hot air flow enters the upstream of the circulating air duct, a condensing device in the circulating air duct condenses and dehumidifies to form low-temperature drying air flow, the low-temperature drying air flow is heated by a heating piece to form drying hot air flow, and the drying hot air flows through the air duct of the rear cover 21 to enter the clothes treatment cavity 1a again, so that the continuous high-efficiency drying of the clothes is realized.

The air duct comprises a first air supply subarea 21b and a second air supply subarea 21c, wherein the first air supply subarea 21b and the second air supply subarea 21c are in blocking arrangement, and the blocking arrangement means that the first air supply subarea 21b and the second air supply subarea 21c cannot mutually blow by, air flow entering the first air supply subarea 21b cannot flow into the second air supply subarea 21c, and air flow entering the second air supply subarea 21c cannot enter the first air supply subarea 21b.

The air duct switching mechanism is provided on the rear cover 21, and includes a driving mechanism 22 and a shutter assembly, the driving mechanism 22 being directly or indirectly connected to the shutter assembly and driving the shutter assembly to selectively open or close the second air supply sub-area 21c.

The specific structure of the driving mechanism 22 is not limited, and the driving mechanism 22 is an electric motor, for example.

It should be noted that, the selective opening or closing of the second air supply sub-area 21c means that the rear cover 21 has at least two air supply states, i.e., a first air supply state and a second air supply state, and the air duct switching mechanism can switch the rear cover 21 between the two air supply states.

In the first air-blowing state, the air flow in the duct is blown out from the first air-blowing sub-area 21b, and the second air-blowing sub-area 21c has little air volume.

In the second air-blowing state, the air flow in the duct is blown out from the first air-blowing sub-area 21b and the second air-blowing sub-area 21c.

As can be seen from the above, the air blowing amount of the first air blowing sub-area 21b in the first air blowing state is larger than that in the second air blowing state.

It can be understood that the first air supply subarea 21b and the second air supply subarea 21c are used for supplying air to different parts of the clothes drying cylinder 1, so that the air supply to different parts in the clothes drying cylinder 1 can be selectively supplied and the air supply quantity of different parts can be adjusted according to actual conditions, so as to adjust the clothes drying speed at different parts.

A detection switch 26 is provided in the rear cover 21, at least for detecting a position where the shutter assembly moves to close the second air supply sub-area 21c.

The control device is used for determining that the second air supply subarea 21c is in an off state or an on state according to the information of the detection switch 26.

Specifically, the driving mechanism 22 drives the shutter assembly to move to a position closing the second air supply sub-area 21c, the detection switch 26 detects the position information, the control device receives the information of the detection switch 26, determines that the second air supply sub-area 21c is in a closed state and is completely closed, and determines that only the first air supply sub-area 21b supplies air at the moment. The driving mechanism 22 drives the baffle assembly to move to open the second air supply subarea 21c, the detection switch 26 detects that the baffle assembly does not close the second air supply subarea 21c, and the control device can determine that the second air supply subarea 21c is in an open state according to the information of the detection switch 26, so that it is determined that both the first air supply subarea 21b and the second air supply subarea 21c supply air at the moment.

It will be appreciated that when the clothes drying apparatus needs to send air only from the first air supply sub-area 21b, the driving mechanism 22 drives the baffle assembly to close the second air supply sub-area 21c, so that the control device cannot accurately determine whether the baffle assembly completely closes the second air supply sub-area 21c or when the baffle assembly completely closes the second air supply sub-area 21c, and the detection switch 26 can detect the position information of the baffle assembly closing the second air supply sub-area 21c, so that the control device is convenient to determine whether the second air supply sub-area 21c is completely closed or still in an open state, is convenient to determine the real-time air supply state of the rear cover 21, and increases the accuracy of air duct switching.

It is to be understood that the default air supply state of the rear cover 21 when the clothes drying apparatus is turned on may be any one of the first air supply state and the second air supply state; that is, each time the clothes drying apparatus is turned on, the rear cover 21 is restored to the default air supply state. Alternatively, the rear cover 21 sets the air-blowing state at the end of the last laundry drying program to the current initial air-blowing state.

When the detection switch 26 is used for starting the clothes drying equipment, the control device can judge the initial air supply state of the clothes drying equipment according to the information detected by the detection switch 26, so that the air supply state is convenient to adjust to dry clothes in a targeted mode.

According to the rear cover assembly 2 provided by the embodiment of the utility model, the air supply state of the rear cover 21 is switched through the air duct switching mechanism, so that the selective air supply of different parts of the clothes treatment cavity 1a is realized, and the air supply quantity can be increased in a targeted manner for the areas where clothes are difficult to dry easily, so that the difference of the drying degrees among different parts is reduced, and the uniformity of the drying effect is improved. The detection switch 26 detects the position of the baffle assembly moving to the position of closing the second air supply subarea 21c, and determines the opening or closing state of the second air supply subarea 21c, so that the real-time air supply state of the rear cover 21 is accurately positioned, the accuracy of switching the air duct of the rear cover 21 is increased, the possibility of overlong or too short clothes drying time caused by uncertain air supply state is reduced, and the working reliability and the working efficiency of the rear cover assembly 2 are improved.

In some embodiments, referring to fig. 1, a rear cover 11 of a clothes drying drum 1 is provided with a first air supply and a first air inlet area 11a and a second air inlet area 11b. The first air inlet area 11a communicates the first air supply sub-area 21b with the laundry treating chamber 1a, that is, the air flow sent from the first air supply sub-area 21b enters the laundry treating chamber 1a through the first air inlet area 11 a. The second air inlet area 11b communicates the second air supply sub-area 21c with the laundry treating chamber 1a, that is, the air flow sent from the second air supply sub-area 21c enters the laundry treating chamber 1a through the second air inlet area 11b.

The specific arrangement of the first and second air supply sub-areas 21b and 21c is not limited, and may be, for example, left-right arrangement, up-down arrangement, or the like.

Illustratively, the second supply air sub-area 21c surrounds the first supply air sub-area 21b. Accordingly, the second air intake zone 11b surrounds the first air intake zone 11 a.

In the first air-blowing state, the rear cover 21 is placed in the first air-blowing state, the laundry treating chamber 1a is blown in from the first air-blowing area 11a, and almost no air is blown into the laundry treating chamber 1a from the second air-blowing area 11b.

In the second air-blowing state, the rear cover 21 is placed in the laundry treating chamber 1a to be blown in from the first air-intake area 11a and the second air-intake area 11b.

Specifically, when the humidity of the laundry in the first air inlet area 11a corresponding to the laundry treatment chamber 1a is higher than that of the laundry in other parts, the air duct switching mechanism may be operated, so that the air flow is sent out only from the first air supply sub-area 21b, and at this time, the air inlet amount of the first air inlet area 11a is higher, so that the fast drying of the laundry in the first air inlet area 11a can be accelerated. When the humidity difference of the clothes at each position in the clothes treatment cavity 1a is not large, the air duct switching mechanism can be operated, so that the air flow is simultaneously sent out from the first air supply subarea 21b and the second air supply subarea 21 c; when the clothes are attached to the inner wall of the clothes treatment cavity 1a, air flows into the first air inlet area 11a through the first air supply subarea 21b and into the second air inlet area 11b through the second air supply subarea 21c, the air flow of the first air inlet area 11a meets the air flow of the second air inlet area 11b, and the air flow of the second air inlet area 11b is extruded by the air flow of the first air inlet area 11a to deflect towards the inner wall of the clothes treatment cavity 1a, so that the contact efficiency of the clothes attached to the inner wall of the clothes treatment cavity 1a and the air flow in the clothes treatment cavity 1a is improved, and the clothes attached to the inner wall of the clothes treatment cavity 1a are dried.

When the detection switch 26 detects that the baffle assembly closes the position information of the second air supply sub-area 21c, the control device judges that the second air supply sub-area 21c is in a completely closed state, only the first air supply sub-area 21b supplies air, the first air inlet area 11a supplies air, and clothes at the first air inlet area 11a are dried, so that after the set drying time of the clothes at the first air inlet area 11a is met, the air channel switching mechanism can be switched to an air supply state or closed equipment. Similarly, when the detection switch 26 detects that the baffle assembly does not close the position information of the second air supply sub-area 21c, the control device determines that the second air supply sub-area 21c is in an open state, the first air supply sub-area 21b and the second air supply sub-area 21c supply air, the first air inlet area 11a and the second air inlet area 11b supply air, and the clothes at the first air inlet area 11a and the second air inlet area 11b are dried, so that after the set drying time of the clothes at the first air inlet area 11a and the second air inlet area 11b is met, the air duct switching mechanism can be enabled to switch the air supply state or close the equipment; thereby reducing the probability of the problems of overlong or too short drying time and increasing the reliability of differential drying of the clothes drying equipment.

The material of the detection switch 26 is not limited, and may be a micro switch, or may be a mechanical switch such as other trigger switch and button, for example, the detection switch 26 may be a micro switch, and has small volume, light weight, strong heat resistance and long service life.

The detection method of the detection switch 26 is not limited. In some examples, referring to fig. 2, the detection switch 26 has a contact 26a, where the contact 26a is disposed at a first preset position of the rear cover 21, and the first preset position is a position where the shutter assembly moves to close the second air supply sub-area 21c, so that the contact 26a can be touched when the shutter assembly moves to the first preset position.

That is, when the driving mechanism 22 drives the shutter assembly to move to the first preset position, the shutter assembly touches the contact 26a, and the control device obtains information of touching the contact 26a of the detection switch 26, so as to determine that the second air supply sub-area 21c is in the completely closed state.

The detection switch 26 may be a normally closed switch or a normally open switch, when the detection switch 26 is a normally closed switch and the baffle assembly touches the contact 26a, the detection switch 26 is in an off state, and the control device determines that the second air supply subarea 21c is completely closed according to the off state of the detection switch 26; when the detection switch 26 is a normally open switch and the baffle assembly touches the contact 26a, the detection switch 26 is in a conducting state, and the control device determines that the second air supply sub-area 21c is completely closed according to the conducting state of the detection switch 26.

The driving mechanism 22 is directly or indirectly connected to the baffle assembly, or the driving mechanism 22 is directly connected to the baffle assembly, or the driving mechanism 22 is indirectly connected to the baffle assembly, in some examples, referring to fig. 2 and 3, the air duct switching mechanism includes a transmission member 24, and a power output shaft of the driving mechanism 22 drives the baffle assembly to swing through the transmission member 24. The transmission piece 24 can realize transmission with larger center distance, and has long transmission distance, large travel, convenient processing and manufacturing and low cost.

In some examples, the power take-off shaft of the drive mechanism 22 and the axis of rotation of the baffle assembly are disposed in parallel to provide a smoother transmission.

In some examples, referring to fig. 2 and 3, the housing 211 includes a back plate 2111 and a side wall 2112 disposed along an edge of the back plate 2111, and the driving mechanism 22, the baffle assembly, and the detection switch 26 are all located on the same side of the back plate 2111, so that the size of the back cover 21 in the front-rear direction is not increased, and the overall structure of the back cover 21 is more compact.

In some examples, referring to fig. 2, the baffle assembly is located on the same side of the drive mechanism 22 such that the drive mechanism 22 does not move the baffle assembly within the back cover 21, nor does the drive mechanism 22 collide with the baffle assembly to affect the air supply to the back cover 21, and to facilitate placement of the drive structure adjacent the side walls 2112, making the overall structure of the back cover 21 more compact.

In some examples, referring to fig. 2 and 3, the rear cover 21 includes spacing ribs 212, and the spacing ribs 212 are disposed in a curved manner within the air duct.

Specifically, the rear ends of the spacer ribs 212 are fixedly connected to the back plate 2111, for example, by welding or the like, or may be integrally formed.

The circumferential inner surface of the spacer rib 212 defines a first supply air sub-area 21b, and the first end 212a and the second end 212b of the spacer rib 212 are spaced apart and define an inlet of the first supply air sub-area 21b. The first end 212a and the second end 212b of the spacer rib 212 are both adjacent to the impeller, and the air flow from the impeller enters the first air supply sub-area 21b from the inlet of the first air supply sub-area 21b.

The circumferentially outer surface of the spacer rib 212 and the inner surface of the side wall 2112 define a second blower sub-area 21c, and the first end 212a of the spacer rib 212 and/or the second end 212b of the spacer rib 212 are spaced from the corresponding side wall 2112 and define an inlet to the second blower sub-area 21c.

In this embodiment, the spacer ribs 212 are arranged such that the second air supply sub-area 21c substantially surrounds the first air supply sub-area 21b, and the structure is simple. When the rear cover 21 is mounted on the rear plate 3, the spacer rib 212 is also abutted against the rear plate 3 so that the first and second air supply sub-areas 21b and 21c do not blow-by each other.

The installation position of the detection switch 26 on the rear cover 21 is not limited. In some embodiments, the detection switch 26 is disposed on the spacer rib 212; and/or the detection switch 26 is provided on the side wall 2112.

In this way, when the shutter assembly moves to close the inlet of the second air supply sub-area 21c, the detection switch 26 can accurately acquire the closing information of the second air supply sub-area 21c, and the detection accuracy of the detection switch 26 is increased.

The number of the detection switches 26 is not limited, and may be one or a plurality.

The spacer ribs 212 are curved in profile to reduce the flow resistance of the air flow.

In some embodiments, referring to fig. 2 and 3, the spacer rib 212 includes an arc-shaped sub-rib 2121 and two guide ribs 2122 disposed at two ends of the arc-shaped sub-rib 2121, the two guide ribs 2122 extend along two ends of the arc-shaped sub-rib 2121 towards directions approaching each other, and the detection switch 26 is disposed on at least one guide rib 2122.

The deflector bar 2122 directs the airflow from the impeller mounting region into the first and/or second supply sub-regions 21b, 21c, while the arcuate sub-bar 2121 reduces airflow resistance. For example, when the duct switching mechanism is switched to the first air supply state, the air flow from the impeller mounting area flows along the guide rib 2122 toward the first air supply sub-area 21b, and the arc-shaped sub-rib 2121 reduces the resistance when the air flow flows into the first air supply sub-area 21b.

The detection switch 26 is arranged on at least one guide rib 2122, and can be that only one guide rib 2122 is provided with the detection switch 26, and can also be that two guide ribs 2122 are provided with the detection switch 26, the detection switch 26 is arranged close to the baffle assembly, so that the position information of the baffle assembly for closing the second air supply subarea 21c is more conveniently obtained, and the detection switch 26 is arranged on two guide ribs 2122, so that the detection accuracy can be increased.

It should be noted that the inlet of the second air supply sub-area 21c may be only one, for example, in some embodiments, the first end 212a of the spacer rib 212 is spaced from the side wall 2112 to form an inlet, and the second end 212b of the spacer rib 212 is connected to the side wall 2112; or the second end 212b of the spacer rib 212 is spaced from the side wall 2112 to form an inlet, and the first end 212a of the spacer rib 212 is connected to the side wall 2112.

The number of inlets of the second air supply sub-area 21c may be two. Illustratively, a first end 212a of the spacer rib 212 is spaced from the sidewall 2112 by a first inlet 21c' that forms the second supply sub-area 21c, and a second end 212b of the spacer rib 212 is spaced from the sidewall 2112 by a second inlet 21c″ that forms the second supply sub-area 21c. That is, in this embodiment, the number of inlets of the second air supply sub-area 21c is two. The air inlet form can enable the air flow in the air duct to enter the second air supply subarea 21c from the first inlet 21c' and the second inlet 21c ", so that the air flow can conveniently enter the second air supply subarea 21c quickly, and the uniformity of the air distribution of the second air supply subarea 21c is improved.

The number of baffle assemblies is not limited and may be two or more. In some examples, the baffle assembly includes at least a first baffle 23' and a second baffle 23 ", the first baffle 23' for opening or closing the first inlet 21c ' and the second baffle 23" for opening or closing the second inlet 21c ".

For example, when the first baffle 23 'closes the first inlet 21c' and the second baffle 23 "closes the second inlet 21 c", airflow enters the first supply sub-area 21b and the rear cover assembly 2 supplies only air from the first supply sub-area 21b.

For example, when the first baffle 23 'opens the first inlet 21c' and the second baffle 23 "opens the second inlet 21 c", airflow enters both the first and second air supply sub-areas 21b, 21c, and the rear cover assembly 2 supplies air to both the first and second air supply sub-areas 21b, 21c.

In some examples, referring to fig. 2 and 3, one end of the first baffle 23 'is detachably abutted against the first end 212a of the spacer rib 212, one end of the second baffle 23 "is detachably abutted against the second end 212b of the spacer rib 212, and the swinging direction of the first baffle 23' is opposite to the swinging direction of the second baffle 23", that is, during the movement of the baffle assembly driven by the driving mechanism 22, the first baffle 23 'and the second baffle 23 "swing reversely, so that the first baffle 23' and the second baffle 23" do not contact during the movement, thereby influencing the switching of the air supply state of the rear cover assembly 2; in addition, the first inlet 21c 'and the second inlet 21c″ can be simultaneously opened or closed, and the first baffle 23' and the second baffle 23″ abut against the spacer rib 212 to perform a limiting function, and also do not affect the air flow entering the first air supply sub-area 21b.

When the rear cover 21 is in the second air supply state, the first and second dampers 23 'and 23″ open the first and second inlets 21c' and 21c″ of the second air supply sub-area 21c, and the first and second dampers 23 'and 23″ are arranged substantially along the direction in which the air flow flows to reduce the resistance of the first and second dampers 23' and 23″ to the air flow.

When the rear cover 21 needs to be switched from the second air supply state to the first air supply state, the power output shaft of the driving mechanism 22 rotates a certain angle in the counterclockwise direction in fig. 3, drives the transmission member 24 to rotate a same angle in the counterclockwise direction in fig. 3, the first baffle plate 23 'connected with the transmission member 24 can also rotate a same angle in the counterclockwise direction in fig. 3, the first baffle plate 23' rotates reversely to the second baffle plate 23 ", that is, the second baffle plate 23″ rotates a same angle in the clockwise direction in fig. 3, so that one end of the first baffle plate 23 'abuts against the side wall 2112, the other end abuts against the first end 212a of the spacer rib 212, the first inlet 21c' of the second air supply sub-area 21c is closed, one end of the second baffle plate 23″ abuts against the side wall 2112, the other end abuts against the second end 212b of the spacer rib 212, the second inlet 21c″ of the second air supply sub-area 21c is closed, and the air flow is guided to the inlet of the first air supply sub-area 21b. The state after the switch is shown in fig. 2.

In this embodiment, the first baffle 23' and the second baffle 23″ occupy a smaller space, have a smaller flow resistance to the air flow, and can switch the air supply state only by swinging a smaller angle.

In some examples, referring to fig. 2 and 3, the air duct switching mechanism further includes a connecting member 25, the first baffle 23 'is connected to form a linkage unit by the connecting member 25, and the driving mechanism 22 directly or indirectly drives the linkage unit to move, that is, the first baffle 23' and the second baffle 23″ move together. In this way, the first baffle 23' and the second baffle 23″ can be driven by a single driving mechanism 22 to move so that the rear cover 21 has different air supply states, the number of the driving mechanisms 22 is reduced, the cost is reduced, only one driving is required to be controlled, and the control mode is simple.

The shape of the connecting member 25 is not limited, and in some examples, referring to fig. 3, the connecting member 25 is linear; in other examples, referring to FIG. 2, the connector 25 is arcuate to reduce resistance to movement.

In some embodiments, referring to fig. 2 and 3, the rear cover 21 includes a partition portion, the partition portion partitions the area enclosed by the side wall 2112 on the surface of the back plate 2111 into at least an air duct and an electric control component placement area 21a, the electric control component placement area 21a and the air duct are separately disposed, and the driving mechanism 22 is disposed in the electric control component placement area 21a.

It should be noted that the separation is not completely isolated, and it is understood that the air flow in the air duct does not flow through the electrical control placement area 21a.

The space in the rear cover 21 is at least divided into an air duct and an electric control part placement area 21a by the dividing part, and the driving mechanism 22 is arranged in the electric control part placement area 21a, in this embodiment, the driving mechanism 22 is not arranged at the back side of the back plate 2111, so that the size of the rear cover 21 along the front-rear direction is not increased by the driving mechanism 22, and the overall structure of the rear cover 21 is more compact; the rear cover 21 protects the driving mechanism 22, so that other external objects are prevented from rubbing the driving mechanism 22, and the driving mechanism 22 is not required to be additionally provided with a protective cover for protection; meanwhile, the die investment cost can be saved, and the assembly process is reduced, so that the assembly is simpler.

In some embodiments, referring to fig. 2, a portion of the partition protrudes toward the air channel to form a volute tongue 213. The volute tongue 213 is of arcuate streamline design to facilitate cutting and to direct airflow.

In some embodiments, the clothes drying apparatus includes a first clothes drying mode and a second clothes drying mode.

First clothes drying mode: the air duct switching mechanism closes the inlet of the second air supply subarea 21c, the rear cover 21 is in a first air supply state, and the clothes treatment cavity 1a is used for supplying air from the first air inlet area 11 a;

second clothes drying mode: the duct switching mechanism opens the inlet of the second air supply sub-area 21c, and the rear cover 21 is in the second air supply state, and the laundry treating chamber 1a is supplied with air from the first air inlet area 11a and the second air inlet area 11b.

When the difference of the humidity of the clothes at each position in the clothes treating cavity 1a is not large, the air duct switching mechanism moves to enable the rear cover 21 to be in the second air supply state, the rear cover 21 relatively uniformly outputs air, and the clothes treating cavity 1a is supplied with air from the first air inlet area 11a and the second air inlet area 11b, so that each position has almost the air quantity, and the clothes are uniformly dried.

When the humidity of the laundry in the first air inlet area 11a corresponding to the laundry treatment chamber 1a is higher than that of the laundry in other parts, the air duct switching mechanism moves to enable the rear cover 21 to be in the first air supply state, and at this time, the rear cover 21 only outputs air from the first air supply sub-area 21b, and the laundry treatment chamber 1a only supplies air from the first air inlet area 11a, and at this time, the air volume corresponding to the first air inlet area 11a is much higher than that in the second clothes drying mode, so that the drying speed of the laundry in the first air inlet area 11a can be increased.

It should be noted that, in the same clothes drying procedure, there may be only one clothes drying mode, for example, the clothes are not obviously knotted, wrapped in the clothes drying drum 1, and the clothes are dried uniformly, so that the clothes drying device always operates in the first clothes drying mode. For another example, during the first half of the time, the first clothes drying mode is operated, and during the second half of the time, the second clothes drying mode is operated; or, in the first half period, the second clothes drying mode is operated, and in the second half period, the first clothes drying mode and the second clothes drying mode are switched to and fro until the drying program is finished.

In the description of the present utility model, a description of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In the present utility model, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments or examples described in the present utility model and the features of the various embodiments or examples may be combined by those skilled in the art without contradiction.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A rear housing assembly, comprising:

2. The back cover assembly of claim 1, wherein the detection switch has a contact disposed at a first preset position of the back cover, the first preset position being a position where the baffle assembly moves to close the second supply sub-area such that the contact can be activated when the baffle assembly moves to the first preset position.

3. The back cover assembly of claim 1, wherein the housing includes a back plate and a side wall disposed along an edge of the back plate, and the drive mechanism, the baffle assembly, and the detection switch are all disposed on a same side of the back plate.

4. A rear housing assembly according to claim 3, wherein the rear housing comprises spacer ribs curvedly disposed within the duct, the circumferential inner surfaces of the spacer ribs defining the first supply sub-zone, the first ends and second ends of the spacer ribs being spaced apart and defining the inlet of the first supply sub-zone, the circumferential outer surfaces of the spacer ribs and the inner surfaces of the side walls defining the second supply sub-zone, the first ends of the spacer ribs and/or the second ends of the spacer ribs being spaced apart from the corresponding side walls and defining the inlet of the second supply sub-zone.

5. The back cover assembly of claim 4, wherein the detection switch is disposed on the spacer bar; and/or the detection switch is arranged on the side wall.

6. The back cover assembly according to claim 4, wherein the spacing rib comprises an arc-shaped sub rib and two guide ribs arranged at two ends of the arc-shaped sub rib, the two guide ribs extend along two ends of the arc-shaped sub rib towards directions close to each other, and the detection switch is arranged on at least one guide rib.

7. The back cover assembly of claim 4, wherein the baffle assembly includes at least a first baffle and a second baffle, the first end of the spacer rib being spaced from the sidewall to form a first inlet of the second supply air sub-area, the second end of the spacer rib being spaced from the sidewall to form a second inlet of the second supply air sub-area, the first baffle being configured to open or close the first inlet, and the second baffle being configured to open or close the second inlet.

8. The back cover assembly of claim 4, wherein the baffle assembly includes at least a first baffle detachably abutting a first end of the spacer rib and a second baffle detachably abutting a second end of the spacer rib, the direction of oscillation of the first baffle being opposite the direction of oscillation of the second baffle.

9. A rear housing assembly according to claim 3, wherein the rear housing comprises a partition dividing the side wall into at least the air duct and the electric control component placement area in a region surrounded by the surface of the back plate, the electric control component placement area and the air duct are separately arranged, and the driving mechanism is arranged in the electric control component placement area.

10. A clothes drying apparatus, comprising:

a laundry dryer drum having a laundry treatment chamber;

a rear plate;

a control device;

and the rear cover assembly according to any one of claims 1-9, wherein the rear plate is arranged between the rear cover and the clothes drying cylinder, the cover is pressed on the rear plate and is in sealing fit with the rear plate, and the control device is used for determining that the second air supply subarea is in a closed state or an open state according to the information of the detection switch.

11. The garment drying apparatus of claim 10, wherein the garment dryer cylinder is provided with a first air intake zone in communication with the first air supply sub-zone, a second air intake zone in communication with the second air supply sub-zone, the second air intake zone surrounding the periphery of the first air intake zone.

12. Laundry drying apparatus according to claim 11, wherein the laundry drying mode of the laundry drying apparatus comprises: