CN218235589U

CN218235589U - Air ducting and dry clothing equipment

Info

Publication number: CN218235589U
Application number: CN202221762013.9U
Authority: CN
Inventors: 吴江; 周胜利; 张涛
Original assignee: Wuxi Little Swan Electric Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2021-11-05
Filing date: 2022-07-08
Publication date: 2023-01-06
Anticipated expiration: 2032-07-08
Also published as: CN116085309A; WO2023077931A1

Abstract

The application provides an air guide device and clothes drying equipment, which comprise a housing, a volute tongue and a turnover plate; the volute tongue divides the local space of the housing into a first air outlet flow channel and a second air outlet flow channel, and the volute tongue is provided with an accommodating cavity and an opening; the first end of the turning plate extends into the accommodating cavity from the opening and can swing relative to the volute tongue, the turning plate is provided with a first limit position for opening the first air outlet flow channel and closing the second air outlet flow channel and a second limit position for closing the air outlet flow channel and opening the second air outlet flow channel, and the turning plate is switched between the first limit position and the second limit position under the action of wind power. The air guide device provided by the embodiment of the application has the advantages that under the action of the volute tongue and the turning plate, the turning plate is driven by wind power to turn along with wind to assist air flow to flow, and the air guide device has almost the same air output no matter the turning plate swings forwards or backwards, so that the performance requirement of forward and reverse rotation of the clothes drying cylinder is met.

Description

Air ducting and dry clothing equipment

The present application is based on and claims priority from chinese patent application No. 202111308010.8, application date 2021, 11/month, 05, which is incorporated herein by reference in its entirety.

Technical Field

The application relates to the technical field of clothes care, in particular to an air guide device and clothes drying equipment.

Background

The clothes drying equipment is provided with an airflow circulation passage and an impeller arranged on the airflow circulation passage, the impeller drives airflow on the airflow circulation passage to flow, the airflow in the clothes drying cylinder enters the airflow circulation passage for dehumidification and heating, and the airflow subjected to dehumidification and heating enters the clothes drying cylinder from the tail end of the airflow circulation passage again.

The clothes drying equipment generally adopts the same motor to drive the impeller and the clothes drying barrel to rotate simultaneously, and in some occasions, the clothes drying barrel needs to be capable of rotating forwards and reversely alternately, namely, the motor needs to rotate forwards and backwards, so that the impeller can rotate forwards or reversely. In the related art, referring to fig. 1, when the impeller 8 rotates forward in the volute 7, the volute tongue 7' cuts the airflow, and the impeller 8 has a larger air output. Referring to fig. 2, when the impeller 8 rotates reversely, the air output is reduced sharply, and the air output is very low, which cannot meet the requirement of drying performance.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiments of the present application are expected to provide an air guiding device and a clothes drying apparatus capable of providing a larger air output under different working conditions.

An embodiment of the present application provides an air guiding device, including:

a housing;

the volute tongue is fixedly arranged in the housing, the volute tongue divides the local space of the housing into a first air outlet flow channel and a second air outlet flow channel, and the volute tongue is provided with an accommodating cavity and an opening;

the first end of the turning plate extends into the accommodating cavity from the opening and can swing relative to the volute tongue, the turning plate swings around the first end of the turning plate, the turning plate is provided with a first limit position for opening the first air outlet flow channel and closing the second air outlet flow channel and a second limit position for closing the first air outlet flow channel and opening the second air outlet flow channel,

the flap can be pivoted under the influence of wind between the first limit position and the second limit position.

In some embodiments, the air guiding device includes an impeller rotatably disposed in the housing, and the flap is disposed on an air outlet side of the impeller.

In some embodiments, the length of the flap is greater than the distance between its point of oscillation and any one of the inner side walls of the housing; under the first extreme position, the second end of the turning plate abuts against one inner side wall of the housing, and under the second extreme position, the second end of the turning plate abuts against the other inner side wall of the housing.

In some embodiments, the air guiding device comprises a vibration damper disposed at the second end of the flap, and the second end of the flap abuts against the inner side wall of the housing through the vibration damper.

In some embodiments, the opening is disposed on a side of the volute tongue facing away from the impeller.

In some embodiments, the volute tongue is connected to the housing along an axial first end parallel to the rotation axis of the impeller, an axial second end of the volute tongue is open, the opening extends through the axial second end of the volute tongue in a direction parallel to the rotation axis of the impeller, and the first end of the flap can be snapped into the opening from one axial side of the opening.

In some embodiments, the air ducting device comprises a cover plate covering the opening.

In some embodiments, one of the cover plate and the volute tongue is provided with a clamping groove, and the other of the cover plate and the volute tongue is provided with a clamping hook which is detachably clamped and matched with the clamping groove.

In some embodiments, a first convex column is arranged at a position of the housing in the accommodating cavity, a second convex column is arranged on the inner side of the cover plate, a first shaft hole and a second shaft hole which are coaxially arranged are formed in the first end of the turning plate, the first convex column is inserted into the first shaft hole, and the second convex column is inserted into the second shaft hole.

In some embodiments, a mounting seat is provided on an exterior of the worm tongue, and the first end of the flap is mounted to the mounting seat and is capable of swinging relative to the worm tongue.

In some embodiments, the volute tongue comprises a first subsection and a second subsection along the swing axial direction of the turning plate, the first subsection is connected with the housing, the second subsection is spliced with the first subsection along the axial direction, one of the mounting seats is arranged on the first subsection, the other mounting seat is arranged on the second subsection, shaft parts are arranged on two axial sides of the first end of the turning plate, the shaft parts are rotatably arranged on the mounting seats, and the first end of the turning plate is restrained between the two mounting seats.

In some embodiments, the volute tongue has a first volute tongue portion and a second volute tongue portion at opposite ends of the volute tongue along the circumference of the impeller.

In some embodiments, the volute tongue comprises a first peripheral wall, a second peripheral wall, and a third peripheral wall, the first peripheral wall, the second peripheral wall, and the third peripheral wall being connected in series; the second peripheral wall is arranged close to the impeller and is formed into an arc-shaped section matched with the outer contour of the impeller, the first peripheral wall and the second peripheral wall respectively extend from two ends of the second peripheral wall towards the direction far away from the impeller and close to each other, the transition joint of the first peripheral wall and the second peripheral wall defines the second volute tongue portion, and the transition joint of the third peripheral wall and the second peripheral wall defines the first volute tongue portion.

In some embodiments, the first peripheral wall is angled at an acute angle to the second peripheral wall; the included angle between the third peripheral wall and the second peripheral wall is an acute angle.

In some embodiments, the casing and the volute tongue are a unitary structure.

In some embodiments, one side of the housing along the swing axial direction of the flap is open, the air inlet and the air outlet of the housing are both positioned at the open position of the housing, and the area of the open position of the housing outside the air inlet and the air outlet is used as the area to be sealed.

In some embodiments, the flow width of the first outlet air flow channel is 0.8 to 1.2 times the flow width of the second outlet air flow channel.

In some embodiments, the first and second tongue portions are identically shaped and symmetrically arranged.

The embodiment of this application still provides a clothing equipment of drying, includes:

a clothes drying cylinder;

a circulating air duct;

and the air ducting device of any embodiment of the present application, the air flow in the circulation air duct is guided to the drying cylinder through the housing.

The air ducting of this application embodiment, under the effect of snail tongue and turning over the board, and turn over the board through wind-force drive and turn over the supplementary air current flow that comes the turnover of wind, no matter turn over board forward swing or reverse swing, air ducting all has roughly about more output of air volume, that is to say, can all have great air output under different operating modes to satisfy the performance requirement of dry barrel just reversing.

According to the air guide device provided by the embodiment of the application, as the first end of the turning plate extends into the accommodating cavity, no airflow gap is formed between the worm tongue and the turning plate, and the worm tongue plays a role in shielding and protecting the first end of the turning plate, so that the probability that lint is clamped at the rotary connection part of the turning plate is reduced; the space can be fully utilized, and the structure is more compact.

Drawings

Fig. 1 is a simplified schematic diagram of an air guiding device in the related art, in which an impeller rotates forward, and dotted lines and arrows illustrate airflow flow paths;

FIG. 2 is a schematic representation of the impeller of FIG. 1 in reverse rotation, with dashed lines and arrows illustrating the airflow flow paths;

fig. 3 is a schematic structural view of an air guiding device according to an embodiment of the present application;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic view from another perspective of the structure shown in FIG. 3, wherein the impeller is rotating in the forward direction and the dashed and arrowheads illustrate the airflow flow paths;

FIG. 6 is a schematic view of the impeller of FIG. 5 shown in reverse rotation, with dashed lines and arrows illustrating the airflow flow paths;

fig. 7 is a schematic structural view of an air guiding device according to a second embodiment of the present application;

fig. 8 is a schematic view of the structure shown in fig. 7 from another perspective.

Description of the reference numerals

An air guide device 100;

a housing 1; a first boss 13; a plate body 11; side panels 12; a connecting seat 121; a through hole 121a; a first air outlet flow channel 1a;

a second air outlet flow channel 1b; an impeller 2;

a turning plate 3; a first shaft hole 3a; a second shaft hole 3b; a shaft portion 31;

a volute tongue 4; a first volute tongue portion 41; second volute tongue 42; the accommodation chamber 4a; an opening 4b; a card slot 4c; a first peripheral wall 401; a second peripheral wall 402; a third peripheral wall 403; a first subsection 4'; a second subsection 4'; a mount 43;

a cover plate 5; a second boss 51; a hook 52;

damping part 6

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

In the description of the embodiments of the present application, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

An embodiment of the present application provides an air guiding device 100, please refer to fig. 3, 4, 5, 6, 7, and 8, which includes a housing 1, a volute tongue 4, and a flap 3.

Exemplarily, the air guiding device 100 includes an impeller 2, and the impeller 2 is rotatably disposed in the housing 1; the impeller 2 is supplied with air from one axial side. The air flow source of the air guide device 100 may be an air flow generated by rotation of the impeller 2 or an air flow input to the air guide device 100 by an external power source. In the embodiment of the present application, the case where the rotation of the impeller 2 forms the air flow will be described as an example.

The volute tongue 4 is fixedly arranged in the housing 1. That is, the volute tongue 4 is located in the internal flow passage of the housing 1, and the volute tongue 4 is always kept relatively stationary with respect to the housing 1, so that the volute tongue 4 can be accurately positioned and calibrated during the assembly process. It can be understood that the position, shape, etc. of the volute tongue 4 all have a great influence on the flow characteristics of the airflow, and therefore, after the design and manufacturing shape of the volute tongue 4 is determined, the installation position of the volute tongue 4 needs to be accurate and cannot swing freely.

The volute tongue 4 divides the local space of the housing into a first air outlet flow channel 1a and a second air outlet flow channel 1b. For example, the volute tongue 4 divides the space on the air outlet side of the impeller 2 into a first air outlet flow channel 1a and a second air outlet flow channel 1b, and the volute tongue 4 is used for cutting the airflow generated by the impeller 2 when the impeller 2 rotates.

In the embodiment of the application, 2 axial air intakes of impeller, radial air-out, that is to say,

impeller

2 and 1 cooperation of housing form the centrifugal fan structure.

The opposite ends of the volute tongue 4 in the circumferential direction of the impeller have a first volute tongue portion 41 and a second volute tongue portion 42, and the first volute tongue portion 41 and the second volute tongue portion 42 are located on opposite sides of the volute tongue 4 in the circumferential direction of the impeller 2. For example, referring to fig. 5, during the forward rotation of the impeller 2, the second volute tongue portion 42 is located on the leeward side of the volute tongue 4, and the first volute tongue portion 41 is located on the windward side of the volute tongue 4 to cut the airflow. Referring to fig. 6, during the reverse rotation of the impeller 2, the first volute tongue portion 41 is located on the leeward side of the volute tongue 4, and the second volute tongue portion 42 is located on the windward side of the volute tongue 4 to cut the airflow.

Referring to fig. 5, the first volute tongue portion 41 is configured to guide the airflow to the first outlet channel 1a when the impeller 2 rotates forward, that is, when the impeller 2 rotates forward, the first volute tongue portion 41 cuts the airflow generated by the impeller 2, so that the airflow is sent out from the first outlet channel 1 a.

Referring to fig. 6, the second volute portion 42 is configured to direct the air flow to the second outlet channel 1b when the impeller 2 rotates reversely. That is, when the impeller 2 rotates in the reverse direction, the second volute tongue portion 42 cuts the airflow generated by the impeller 2, so that the airflow is sent out from the first outlet airflow passage.

In the embodiments of the present application, the forward rotation and the reverse rotation are only intended to indicate that the rotation directions of the two are opposite, and are not particularly intended to refer to specific directions. For example, in some embodiments, the counterclockwise direction in fig. 5 is defined as the forward direction, and the clockwise direction is defined as the reverse direction, and in other embodiments, the clockwise direction in fig. 5 may also be defined as the forward direction, and the counterclockwise direction may also be defined as the reverse direction.

The turning plate 3 is arranged in the housing 1, the first end of the turning plate 3 close to the volute tongue 4 is rotationally connected with the housing 1 and/or the volute tongue 4, and the turning plate 3 swings around the first end of the turning plate as a whole. The swing axis of the turning plate is parallel to the rotation axis of the impeller. The second end of flap 3 is the free end. That is, the rotation center line of the turning plate 3 is positioned on the volute tongue 4 or adjacent to the volute tongue 4, so that the turning plate 3 and the volute tongue 4 have substantially no airflow gap and can better guide airflow to flow.

It should be noted that the rotational connection between the first end of the flap 3 close to the volute tongue 4 and the housing 1 and/or the volute tongue 4 includes three conditions, the first one is: the first end of the turning plate 3 close to the volute tongue 4 is only connected with the housing 1, namely is arranged on the housing 1; and the second method comprises the following steps: the first end of the turning plate 3 close to the volute tongue 4 is only connected with the volute tongue 4, namely is arranged on the volute tongue 4; and the third is that: the first end of the turning plate 3 close to the volute tongue 4 is connected with both the housing 1 and the volute tongue 4, that is, the first end of the turning plate 3 close to the volute tongue 4 is mounted through the housing 1 and the volute tongue 4.

The turning plate 3 has a first limit position (refer to fig. 5) for opening the first outlet flow channel 1a and closing the second outlet flow channel 1b, and has a second limit position (refer to fig. 6) for closing the first outlet flow channel 1a and opening the second outlet flow channel 1b. Under the first extreme position, because turn over board 3 and closed second air-out runner 1b, consequently, the air current that flows out from first air-out runner 1a can not flow backward and get into in the second air-out runner 1b. Under the second limit position, because the turning plate 3 closes the first air outlet flow channel 1a, the air flow flowing out of the second air outlet flow channel 1b cannot flow backwards into the first air outlet flow channel 1 a.

The flap 3 is capable of being swung by the wind between a first limit position and a second limit position, for example, in the embodiment of the present application, the flap 3 is described as being swung by the wind of the impeller 2, that is, the impeller 2 is selectively rotated in the forward direction or in the reverse direction, so that the wind of the impeller 2 drives the flap 3 to switch between the first limit position and the second limit position. Namely, the turning plate 3 is driven by wind power to turn without an additional power device. Because the volute tongue 4 keeps static relative to the housing 1, the volute tongue 4 does not move, and only the turning plate 3 needs to move, the turning plate 3 can be made thinner and lighter, and can be easily turned over under the action of wind power, and the reliability is higher.

The air guide device 100 of the embodiment of the application has the advantages that under the action of the volute tongue and the turning plate, the turning plate is driven by wind power to turn over along with wind to assist air flow to flow, and the air guide device has almost the same air output no matter the turning plate swings forwards or backwards, namely, the air guide device can have large air output under different working conditions, so that the performance requirement of forward and reverse rotation of the clothes drying cylinder is met.

In the air guide device 100 according to the embodiment of the present invention, under the action of the first volute tongue portion 41, the second volute tongue portion 42 and the flap 3, when the impeller 2 rotates forward, the second volute tongue portion 42 cuts the airflow, when the impeller 2 rotates backward, the first volute tongue portion 41 cuts the airflow, and the flap 3 is driven by the wind force of the impeller 2 to rotate with the wind to assist the airflow to flow. Therefore, the air guide device 100 outputs a large air volume regardless of the forward rotation or the reverse rotation of the impeller 2.

Please refer to table 1, where table 1 is comparative experimental data of the air guiding device 100 according to an embodiment of the present application and a comparative example.

Table 1: comparative experiment data of air guide device 100 and comparative example in embodiment of the present application

In the comparative example, the air guide device shown in fig. 1 was used.

As is apparent from table 1, the air guide device 100 according to the embodiment of the present invention has almost the same air volume output regardless of the normal rotation or the reverse rotation of the impeller 2, and satisfies the performance requirements for the normal and reverse rotation of the clothes drying drum, for example.

In the related art, the air duct is switched by arranging the movable volute tongue, and the volute tongue needs to move in the housing, so that a larger safety distance needs to be kept between the volute tongue and the impeller, and the volute tongue and the impeller are prevented from interfering, so that the left and right dimensions of the housing at the mounting position of the volute tongue are larger; in addition, the volute tongue is used for cutting airflow when the impeller rotates, the volute tongue is used as a key component of the air duct, and parameters such as the distance between the volute tongue and the rotating edge of the impeller, the relative position between the volute tongue and the rotating center of the impeller and the like have great influence on the air outlet performance of the air guide device. When the volute tongue is designed as a movable part, the volute tongue may not move in place, and after the volute tongue is used for a period of time, the relative position between the volute tongue and the impeller may change, so that the air outlet performance of the air guide device may be unstable.

In the air guide device of the embodiment of the application, the volute tongue 4 is always fixed, and after the air guide device is assembled, the volute tongue 4 cannot interfere with the impeller 2, so that the distance between the volute tongue 4 and the rotation center of the impeller 2 is unchanged, and in the design and assembly processes, the distance between the volute tongue 4 and the rotation center of the impeller 2 can be smaller, so that the air guide device is compact in structure, and the air outlet performance of the air guide device can be relatively stable.

The turning plate 3 is positioned on one side of the volute tongue 4, which is far away from the impeller 2, the inner end of the turning plate 3, which is close to one side of the impeller 2, is used as a swing fulcrum, and the turning plate 3 swings around the swing fulcrum. That is, the inner end of the turning plate 3 is close to the impeller 2, the outer end of the turning plate 3 is far away from the impeller, and the volute tongue 4 is positioned between the inner end of the turning plate 3 and the impeller 2 along the flow direction of the air flow.

In the swinging process of the turning plate 3, the swinging center of the turning plate 3 is positioned at the inner end close to the impeller 2, therefore, the position of the turning plate 3 with the largest swinging linear velocity is positioned at the outer end of the turning plate 3 far away from the impeller 2, therefore, the turning plate 3 is always turned outwards, the relative position relation between the impeller 2 and the volute tongue 4 is basically not considered, the size of the housing at the positions of the impeller 2 and the volute tongue 4 is not influenced, and the housing has smaller size along the left side and the right side and compact structure.

For example, referring to fig. 6, the flow width H1 of the first outlet air flow channel 1a is 0.8 to 1.2 times the flow width H2 of the second outlet air flow channel 1b, i.e., H1= H2 (0.8 to 1.2), for example, 0.8, 0.87, 0.9, 0.95, 1.0, 1.04, 1.1, etc. That is, the volute tongue 4 is provided approximately at the middle of the housing 1 in the width direction.

In this embodiment, the flow width H1 of the first air outlet flow channel 1a and the flow width H2 of the second air outlet flow channel 1b are the same or have a smaller difference, so that almost the same air volume enters the first air outlet flow channel 1a or the second air outlet flow channel 1b no matter the impeller 2 rotates forward or backward, and the air guiding device has almost the same air volume. When the air guide device is applied to the clothes drying equipment, the air guide device can provide large air volume no matter a clothes drying cylinder of the clothes drying equipment rotates forwards or reversely, and the air volume required by clothes drying is met.

Illustratively, in some embodiments, the flow width H1 of the first outlet flow channel 1a is 8cm (centimeter) to 10cm, for example, 8cm, 8.3cm, 8.8cm, 9cm, 9.4cm, 9.5cm, 9.7cm, 10cm, and the like; the second outlet flow channel 1b has an outlet width H2 of 8cm to 10cm, for example, 8cm, 8.3cm, 8.8cm, 9cm, 9.4cm, 9.5cm, 9.7cm, 10cm, and the like. When the air guide device is used for clothes drying equipment, the width range can not only enable the air guide device to have proper air quantity meeting clothes drying performance, but also enable the structure of the air guide device to be compact.

Illustratively, the air output of the air guiding device when the impeller 2 rotates forward is a first air output, the air output of the air guiding device when the impeller 2 rotates backward is a second air output, and the first air output is 0.8 to 1.2 times of the second air output, for example, 0.8, 0.83, 0.9, 0.95, 1.0, 1.04, 1.1, 1.7, 1.2, and the like.

In this embodiment, the air guide device has almost the same air output regardless of whether the impeller 2 rotates forward or backward. When the air guide device is applied to the clothes drying equipment, the air guide device can provide large air quantity no matter the clothes drying cylinder of the clothes drying equipment rotates forwards or backwards, and the air quantity required by clothes drying is met.

Illustratively, referring to fig. 5 and 6, first volute tongue portion 41 and second volute tongue portion 42 are identically shaped and symmetrically arranged. It will be appreciated that the first volute tongue portion 41 is arranged to cut the flow of gas when the impeller 2 is rotating in the forward direction and the second volute tongue portion 42 is arranged to cut the flow of gas when the impeller 2 is rotating in the reverse direction.

It should be noted that, the symmetrical arrangement refers to: a center line L (see fig. 6) between first volute tongue portion 41 and second volute tongue portion 42 passes through the center of rotation of impeller 2, and first volute tongue portion 41 and second volute tongue portion 42 are symmetrical about this center line L.

In this embodiment, the first volute tongue portion 41 and the second volute tongue portion 42 have substantially the same ability to cut the airflow no matter whether the impeller 2 rotates in the forward direction or in the reverse direction, so that the airflow flowing performance when the airflow passes through the first volute tongue portion 41 or the second volute tongue portion 42 is almost the same, and the airflow flowing performance of the airflow guided by the air guiding device is relatively stable.

The specific structure of the flap 3 is not limited, and for example, it may be a straight plate, an arc plate, or the like.

Illustratively, the flap 3 extends from the volute tongue 4 to the air outlet side of the casing 1, so that the flap 3 can also have a flow guiding function while selectively closing the first air outlet flow channel 1a or the second air outlet flow channel 1b.

Referring to fig. 5, the length of the turning plate is greater than the distance between the swinging point and any one of the inner side walls of the housing 1, so that the second end of the turning plate 3 abuts against one of the inner side walls 12b of the housing 1 under the first limit position, at this time, the turning plate 3 shields the second air outlet flow channel 1b but does not shield the first air outlet flow channel 1a, the flow of the air flow from the first air outlet flow channel 1a is not affected, and the air flow blown out from the first air outlet flow channel 1a does not flow backward into the second air outlet flow channel 1b under the action of the turning plate 3. In the air flow flowing process, the air flow can flow along the surface of one side of the turning plate 3, and the turning plate 3 has a flow guide effect.

Referring to fig. 6, at the second limit position, the second end of the turning plate 3 abuts against the other inner side wall 12a of the housing 1. At this time, the turning plate 3 shields the first air outlet flow channel 1a, but does not shield the second air outlet flow channel 1b, so that the flow of the air flow from the second air outlet flow channel 1b is not affected, and the air flow blown out from the second air outlet flow channel 1b cannot flow backward into the first air outlet flow channel 1a under the action of the turning plate 3. In the air flow flowing process, the air flow can flow along the surface of the other side of the turning plate 3, and the turning plate 3 has a flow guide effect.

That is to say, through the rotation of the same turning plate 3, the switching control of the first air outlet flow channel 1a and the second air outlet flow channel 1b can be realized, and the structure is simple.

For example, referring to fig. 3, 4, 5 and 6, the air guiding device 100 includes a damping member 6, the damping member 6 is disposed at the second end of the turning plate 3, and the second end of the turning plate 3 abuts against the

inner side walls

12a and 12b of the housing 1 through the damping member 6.

The damping member 6 is made of a material having a damping property, such as rubber, foam, or the like. In the embodiment, when the turning plate 3 abuts against the

inner side walls

12a and 12b of the housing 1, the turning plate 3 is not directly contacted with the inner side walls of the housing 1, but is contacted with the

inner side walls

12a and 12b of the housing 1 through the vibration damping piece 6, and the vibration damping piece 6 can prevent the turning plate 3 from directly impacting the inner side walls of the housing 1, so that the generation of harsh impact sound and the influence on user experience are avoided; on the other hand, the risk of breakage of the flap 3 due to prolonged impacts is reduced.

The specific structural shape of the damping member 6 is not limited as long as the damping member has damping function and prevents the flap 3 from directly contacting the

inner side walls

12a and 12b of the housing 1.

For example, the damping element 6 is in the form of a sleeve and covers the second end of the flap 3.

For another example, the damping element 6 comprises two resilient strips, which are clamped to the second end of the flap 3. When the flap 3 abuts against one of the inner side walls 12a of the housing 1, one of the elastic pieces contacts the inner side wall 12 a. When the flap 3 abuts against the other inner side wall 12b of the housing 1, the other spring sheet contacts the inner side wall 12 b.

It should be noted that the relative position relationship between the first end of the turning plate 3 and the volute tongue 4 is not limited.

For example, in the first embodiment of the present application, referring to fig. 3 to 6, the first end of the flap 3 extends into the interior of the volute tongue 4 and can swing relative to the volute tongue 4, so that substantially no air leakage occurs between the first end of the flap 3 and the volute tongue 4, and the structure can be made compact.

Exemplarily, referring to fig. 4, the volute tongue 4 is provided with a receiving cavity 4a and an opening 4b, and the first end of the flap 3 extends into the receiving cavity 4a from the opening 4b. It should be noted that the size of the opening 4b is required to meet the requirement of the swing amplitude of the flap 3. In the embodiment, no airflow gap is formed between the volute tongue 4 and the turning plate 3, and the volute tongue 4 plays a role in shielding and protecting the first end of the turning plate 3, so that the probability that the rotating connection part of the turning plate is clamped by lint is reduced; the space can be fully utilized, and the structure is more compact.

Exemplarily, with continued reference to fig. 4, the opening 4b is provided at a side of the volute tongue 4 facing away from the impeller 2. The air current can not directly blow to opening 4b, so, can prevent that the batting from getting into and piling up in holding chamber 4a from opening 4b, prevents that the batting from blocking the normal rotation that turns over board 3.

For example, referring to fig. 4, the volute tongue 4 is connected to the housing 1 along an axial first end parallel to the rotation axis of the impeller 2, an axial second end of the volute tongue 4 is open, the opening 4b penetrates through the axial second end of the volute tongue 4 along a direction parallel to the rotation axis of the impeller 2, and the first end of the flap 3 can be clamped into the opening 4b from one axial side of the opening 4b, so that the assembly is facilitated.

For example, referring to fig. 3 and 4, the air guiding device 100 includes a cover plate 5, and the cover plate 5 covers an opening of the volute tongue 4. After the turning plate 3 is assembled, the cover plate 5 is arranged at the opening of the volute tongue 4. The cover plate 5 can prevent the lint from entering the accommodating cavity 4a from the opening of the volute tongue 4.

It will be appreciated that the shape of the cover plate 5 may be adapted to the shape of the opening of the volute tongue 4.

It should be noted that the first end of the flap 3 is not limited in the manner of assembly, and the first end of the flap 3 may be mounted on the volute tongue 4 and/or the housing 1. For example, in some embodiments, the flap 3 is mounted only on the volute tongue 4; in other embodiments, the flap 3 is mounted only on the casing 1; in still other embodiments, the volute tongue 4 and the housing 1 jointly mount the flap 3.

For example, referring to fig. 4, a first convex column 13 is disposed at a portion of the housing 1 located in the accommodating cavity 4a, and a second convex column 51 is disposed at an inner side of the cover plate 5. The inner side of the cover 5 refers to the side of the cover 5 facing the receiving cavity 4 a.

Referring to fig. 4, the first end of the turning plate 3 has a first shaft hole 3a and a second shaft hole 3b coaxially disposed. During assembly, the first convex column 13 is inserted into the first shaft hole 3a, the flap 3 is initially positioned through the matching of the first convex column 13 and the first shaft hole 3a, and then the second convex column 51 is inserted into the second shaft hole 3b during the process of covering the cover plate 5. When the cover plate 5 is covered, the two opposite ends of the turning plate 3 along the axial direction are positioned by the first convex column 13 and the second convex column 51.

It should be noted that the first convex column 13 and the second convex column 51 are located on the same straight line, and the flap 3 rotates around the straight line.

It should be noted that the first boss 13 is in clearance fit with the first shaft hole 3a, and the second boss 51 is in clearance fit with the second shaft hole 3b.

In the embodiment, the installation mode of the turning plate 3 is simple, and in the assembling process, the hand of an operator is not required to extend into the narrow accommodating cavity 4a, so that the assembling operation is facilitated.

The specific shape of the first protruding pillar 13 is not limited, and for example, the first protruding pillar may be cylindrical, prismatic, or the like, which is not limited herein. Likewise, the specific shape of the first pillar 14 is not limited, and may be, for example, a cylinder, a prism, etc., without limitation.

It should be noted that the first shaft hole 3a and the second shaft hole 3b may be communicated with each other in the axial direction, or may be spaced apart from each other in the axial direction, which is not limited herein.

The cover plate 5 and the volute tongue 4 are not limited in assembly mode, and can be detachable or not.

For example, referring to fig. 4, one of the cover plate 5 and the volute tongue 4 is provided with a slot 4c, and the other is provided with a hook 52, and the hook 52 is detachably engaged with the slot 4 c. In the assembling process, the cover plate 5 is only required to be slightly pressed on the volute tongue 4 until the clamping hook 52 is clamped into the clamping groove 4c, fastening is not required to be carried out in the modes of screws and the like, and the assembling is simple and convenient.

It can be understood that the number of the hooks 52 and the slots 4c is not limited as long as the cover 5 and the volute tongue 4 can be reliably engaged.

It is understood that, in some embodiments, all the hooks 52 may be disposed on the cover plate 5, and all the slots 4c may be disposed on the volute tongue 4; in other embodiments, all the hooks 52 may be disposed on the volute tongue 4, and all the slots 4c may be disposed on the cover plate 5; in still other embodiments, a part of the hook 52 and a part of the slot 4c are disposed on the cover plate 5, another part of the hook 52 and a part of the slot 4c are disposed on the tongue 4, the hook 52 on the cover plate 5 is engaged with the slot 4c on the tongue 4, and the slot 4c on the cover plate 5 is engaged with the hook 52 on the tongue 4.

In a second embodiment of the present application, please refer to fig. 7 and 8, a mounting seat 43 is disposed outside the volute tongue 4, and a first end of the flap 3 is mounted to the mounting seat 43 and can swing relative to the volute tongue 4. That is, the first end of the flap 3 does not extend into the interior of the volute tongue 4, so that the mounting of the flap 3 on the volute tongue 4 can be facilitated.

Illustratively, referring to fig. 7 and 8, the volute tongue 4 includes a first subsection 4' and a second subsection 4 ″ along the axial direction of the impeller 2, wherein the first subsection 4' is connected with the casing 1, for example, the first subsection 4' is an integral structure with the casing 1. The second subsection 4 "is axially spliced to the first subsection 4'.

During assembly, the second subsection 4 "is spliced to one axial side of the first subsection 4', and the screw penetrates through the second subsection 4" and is screwed into the first subsection 4'.

Illustratively, one of the mounting seats 43 is disposed on the first sub-segment 4', the other mounting seat 43 is disposed on the second sub-segment 4 ″, the axial opposite ends of the first end of the turning plate 3 are each provided with a shaft portion 31, the shaft portions 31 are rotatably disposed on the mounting seats 43, and the two mounting seats 43 restrain the first end of the turning plate 3 therebetween.

During assembly, one shaft part 31 of the turning plate 3 is inserted into the mounting seat 43 of the first subsection 4', then the second subsection 4' is axially aligned with the first subsection 4', the mounting seat 43 on the second subsection 4' is aligned with the other shaft part 31 of the turning plate 3, the mounting seat 43 on the second subsection 4' is sleeved on the corresponding shaft part 31, a screw passes through the second subsection 4' and is screwed into the first subsection 4', and the first end of the turning plate 3 is mounted and positioned by splicing the second subsection 4' with the first subsection 4', so that the structure is simple, and the assembly process is simple.

Illustratively, the volute tongue 4 includes a first peripheral wall 401, a second peripheral wall 402, and a third peripheral wall 403, the first peripheral wall 401, the second peripheral wall 402, and the third peripheral wall 403 are sequentially connected to enclose the receiving cavity 4a, and one end of the first peripheral wall 401 and one end of the third peripheral wall 403 are spaced to form the opening 4b.

The curved transition junction between the first peripheral wall 401 and the second peripheral wall 402 defines the second volute tongue portion 42, and the curved transition junction between the third peripheral wall 403 and the second peripheral wall 402 defines the first volute tongue portion 41.

The first peripheral wall 401, the second peripheral wall 402, and the third peripheral wall 403 have a constant extension in the direction of the rotation axis of the impeller 2.

The second peripheral wall 402 is disposed close to the impeller, and the second peripheral wall 402 is formed into an arc section substantially the same as the outer contour of the impeller, so that the volute tongue 4 can be disposed as close as possible to the impeller without interfering with the impeller.

It should be noted that if a large amount of air flows through the gap between the second peripheral wall 402 and the impeller, this part of the air volume will continue to circulate in the space around the impeller and will not be sent out from the housing, which will increase the energy consumption of the impeller and reduce the air output of the air guiding device.

In the embodiment of the present application, the distance between the second peripheral wall 402 and the impeller can be controlled to the minimum safe distance, so as to reduce the amount of air discharged through the gap between the second peripheral wall 402 and the impeller, and further increase the air output of the air guiding device 100. In addition, no matter whether the impeller rotates forwards or reversely, the gap between the second peripheral wall 402 and the impeller is small, and the air guiding device has large air outlet quantity.

Illustratively, the first peripheral wall 401 and the second peripheral wall 402 extend from both ends of the second peripheral wall 402 toward a direction away from the impeller and close to each other, respectively. In this embodiment, the first peripheral wall 401 extends from the first end of the second peripheral wall 402 toward the direction away from the impeller and toward the center line direction of the second peripheral wall 402, and the third peripheral wall 403 extends from the second end of the second peripheral wall 402 toward the direction away from the impeller and toward the center line direction of the second peripheral wall 402, so that the first peripheral wall 401 and the second peripheral wall 402 are formed as guide slopes.

Wherein the center line of the second peripheral wall 402 refers to a center line of symmetry of a projection of the second peripheral wall 402 in a plane projection perpendicular to the rotation axis of the impeller.

When the impeller rotates forward, the first peripheral wall 401 guides the wind to be discharged from the second outlet air flow path. When the impeller rotates in reverse, the second peripheral wall 402 guides the wind to be discharged from the first outlet air flow passage.

In addition, in this embodiment, the included angle between the first peripheral wall 401 and the second peripheral wall 402 is an acute angle, and the transition joint between the two is formed into the arc-shaped second volute tongue portion 42, so that the second volute tongue portion 42 can better cut the airflow.

The included angle between the third peripheral wall 403 and the second peripheral wall 402 is an acute angle, and the transition joint of the third peripheral wall and the second peripheral wall is formed into the arc-shaped first volute tongue portion 41, so that the first volute tongue portion 41 can better cut the airflow.

In some embodiments, the casing 1 and the volute tongue 4 are integrally formed, for example, integrally injection-molded, so that the joint between the volute tongue 4 and the casing 1 has better structural strength, and the volute tongue 4 and the casing 1 do not need to be assembled on an assembly line, thereby saving assembly time.

In other embodiments, the casing 1 and the volute tongue 4 may be separate parts and then assembled together by welding or fusing.

In the embodiment of the present application, the shape of the blades of the impeller 4 is not limited, and for example, the blades may be straight blades or curved blades with a small exit angle (less than 15 °).

The specific shape of the housing 1 can be changed adaptively according to the application.

For example, in some embodiments, the interior of the enclosure 1 forms a relatively enclosed space.

In other embodiments, referring to fig. 3 and 4, one side of the housing 1, which is used for feeding air in the axial direction of the impeller 2, is open, the air inlet and the air outlet of the housing 1 are both located at the open position of the housing 1, and the rest area of the open position of the housing 1, which is located outside the air inlet and the air outlet, is used as an area to be sealed, and the area to be sealed is covered by using some parts of a product to form a relatively sealed space. In this embodiment, the air inlet and the air outlet of the housing 1 are both located on the same side of the housing 1.

Illustratively, referring to fig. 3 and 4, the housing 1 includes a plate body 11 and a side wall 12, the plate body 11 is located on one axial side of the impeller 2, wherein the plate body 11 and the air inlet side of the impeller 2 are located on two axially opposite sides of the impeller 2. The side coamings 12 surround the edges of the panel body 11, and the panel body 11 and the side coamings 12 define an open space.

In order to facilitate other structures to close the opening of the housing 1, a plurality of connecting seats 121 are arranged on the outer side of the side enclosing plate 12, the connecting seats 121 are provided with through holes 121a, and during assembly, screws penetrate through the through holes 121a and are screwed into other structures.

The application field of the air guiding device 100 according to the embodiment of the present application is not limited. In the embodiment of the present application, the wind guiding device 100 is applied to a clothes drying apparatus as an example.

The embodiment of the application provides a clothes drying device, which comprises a box body, a clothes drying cylinder, a circulating air duct, a motor and the air guide device 100 of any embodiment of the application.

The clothes drying cylinder is arranged in the box body, and the rear end of the clothes drying cylinder is provided with an air inlet.

Illustratively, the first end of the motor shaft of the motor is used for outputting a driving force to the drying drum, for example, the first end of the motor shaft drives the drying drum to rotate through a belt. The second end of the motor shaft drives the impeller 2 to rotate. That is, the motor shaft simultaneously drives the drum and the impeller 2 to rotate.

The air flow in the circulating air duct is guided to the clothes drying cylinder through the housing 1. Specifically, the air flow in the housing 1 enters the drying cylinder through the air inlet hole. In the rotation process of the impeller 2, airflow in the housing 1 is pumped into the clothes drying cylinder, meanwhile, negative pressure is generated at the air inlet position of the impeller 2, and the airflow in the circulating air duct is supplemented into the housing 1 under the action of the negative pressure.

The circulating air duct is provided with a condensing device for cooling and dehumidifying and a heating member for heating the dehumidified gas.

The clothes drying process and principle of the clothes drying equipment are as follows: the hot drying air flow enters the dry clothes cylinder from the air outlet of the housing 1 through the air inlet hole, the hot drying air flow flows through the surface of wet clothes in the dry clothes cylinder to perform heat-moisture exchange with the wet clothes to absorb moisture in the clothes and change the moisture into the wet hot air flow, the wet hot air flow enters 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 passes through a heating element to be heated to form hot drying air flow, the hot drying air flow enters the air guide rear cover to guide the flow and then enters the dry clothes cylinder again, and the continuous and efficient drying of the clothes is realized through the circulating operation.

In some embodiments, the clothes drying apparatus includes a base, an evaporator and a condenser, the cabinet is disposed above the base, the condensing device is an evaporator of a heat pump system, the heating element is a condenser of the heat pump system, the evaporator and the condenser are disposed on the base, the evaporator and the condenser are both disposed on the circulating air duct, the evaporator is disposed upstream of the condenser along a flow direction of the air flow, and the air flow from the clothes treating cavity sequentially flows through the evaporator and the condenser and then enters the air guide rear cover.

Illustratively, the cabinet includes a left support plate, a right support plate, and a back plate connected between the left support plate and the right support plate.

The assembly relationship between the air guiding device 100 and the box is not limited, for example, in some embodiments, the air guiding device 100 is disposed on the rear side of a back plate of the box, the front side of the casing 1 is open, and the back plate closes an area to be sealed at the open position of the casing 1. The backplate is provided with the ventilation hole, and the ventilation hole is located the open department of housing 1, and the air current of housing 1 gets into the dry clothing section of thick bamboo through ventilation hole, fresh air inlet.

In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," 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 application. In this application, the schematic representations of the terms used above are not necessarily intended to refer to 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. Moreover, various embodiments or examples and features of different embodiments or examples described herein may be combined by one skilled in the art without contradiction.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An air guide device, comprising:

a housing (1);

the volute tongue (4) is fixedly arranged in the housing, the volute tongue (4) divides a local space of the housing into a first air outlet flow channel (1 a) and a second air outlet flow channel (1 b), and the volute tongue (4) is provided with an accommodating cavity (4 a) and an opening (4 b);

the first end of the turning plate (3) extends into the accommodating cavity (4 a) from the opening (4 b) and can swing relative to the volute tongue (4), the turning plate (3) swings around the first end of the turning plate, the turning plate (3) has a first limit position for opening the first air outlet flow channel (1 a) and closing the second air outlet flow channel (1 b) and a second limit position for closing the first air outlet flow channel (1 a) and opening the second air outlet flow channel (1 b), and the turning plate can swing between the first limit position and the second limit position under the action of wind power.

2. The air guiding device according to claim 1, characterized in that the air guiding device comprises an impeller (2), the impeller (2) is rotatably disposed in the casing (1), and the turning plate is disposed on an air outlet side of the impeller.

3. The air guiding device according to claim 1, characterized in that the length of the flap (3) is greater than the distance between the pivot point thereof and any one of the inner side walls of the housing (1), and in the first extreme position, the second end of the flap (3) abuts against one of the inner side walls of the housing (1), and in the second extreme position, the second end of the flap (3) abuts against the other of the inner side walls of the housing (1).

4. The air guiding device according to claim 3, characterized in that the air guiding device comprises a vibration damper (6), the vibration damper (6) is arranged at the second end of the turning plate (3), and the second end of the turning plate (3) is abutted with the inner side wall of the housing (1) through the vibration damper (6).

5. The air guiding device as recited in claim 2, characterized in that the opening (4 b) is arranged on a side of the volute tongue (4) facing away from the impeller (2).

6. The air guiding device according to claim 2, wherein the volute tongue (4) is connected to the housing (1) along an axial first end parallel to the rotation axis of the impeller (2), an axial second end of the volute tongue (4) is open, the opening (4 b) penetrates through the axial second end of the volute tongue (4) in a direction parallel to the rotation axis of the impeller (2), and the first end of the flap (3) can be snapped into the opening (4 b) from one axial side of the opening (4 b).

7. The air guiding device as recited in claim 6, characterized in that the air guiding device comprises a cover plate (5), and the cover plate (5) covers the opening of the volute tongue (4).

8. Air ducting device as claimed in claim 7, wherein one of the cover plate (5) and the volute tongue (4) is provided with a locking slot (4 c), and the other is provided with a locking hook (52), and the locking hook (52) is detachably snap-fitted with the locking slot (4 c).

9. The air guiding device as recited in claim 7, characterized in that a first convex column (13) is arranged at a position of the housing (1) in the accommodating cavity (4 a), a second convex column (51) is arranged at an inner side of the cover plate (5), a first end of the flap (3) is provided with a first shaft hole (3 a) and a second shaft hole (3 b) which are coaxially arranged, the first convex column (13) is inserted into the first shaft hole (3 a), and the second convex column (51) is inserted into the second shaft hole (3 b).

10. The air guiding device as recited in claim 1, characterized in that a mounting seat (43) is arranged outside the volute tongue (4), and the first end of the flap (3) is mounted to the mounting seat (43) and can swing relative to the volute tongue (4).

11. The air guide device according to claim 10, characterized in that, along the swing axial direction of the flap, the volute tongue (4) comprises a first subsection (4 ') and a second subsection (4 "), the first subsection (4') is connected with the casing, the second subsection (4") is spliced with the first subsection (4 ') along the axial direction, one of the installation seats (43) is arranged on the first subsection (4'), the other installation seat (43) is arranged on the second subsection (4 "), both axial sides of the first end of the flap are provided with shaft portions (31), the shaft portions (31) are rotationally arranged on the installation seats (43), and the two installation seats (43) restrain the first end of the flap therebetween.

12. The air guiding device as claimed in claim 2, wherein the volute tongue (4) has a first volute tongue portion (41) and a second volute tongue portion (42) at opposite ends in the circumferential direction of the impeller.

13. The air guiding device as recited in claim 12, wherein the volute tongue (4) comprises a first peripheral wall (401), a second peripheral wall (402) and a third peripheral wall (403), and the first peripheral wall (401), the second peripheral wall (402) and the third peripheral wall (403) are sequentially connected; the second peripheral wall (402) is arranged close to the impeller (2) and is formed into an arc-shaped section matched with the outer contour of the impeller (2), the first peripheral wall (401) and the third peripheral wall (403) respectively extend from two ends of the second peripheral wall (402) towards the direction far away from the impeller (2) and close to each other, the transition joint of the first peripheral wall (401) and the second peripheral wall (402) defines the second worm tongue portion (42), and the transition joint of the third peripheral wall (403) and the second peripheral wall (402) defines the first worm tongue portion (41).

14. The air guiding device as recited in claim 13, wherein an included angle between the first peripheral wall (401) and the second peripheral wall (402) is an acute angle; the third circumferential wall (403) and the second circumferential wall (402) form an acute angle.

15. The air guiding device as defined in any one of claims 1-14, wherein the casing (1) and the volute tongue (4) are of an integrally formed structure.

16. The air guiding device according to any one of claims 1 to 14, wherein one side of the casing (1) in the swing axial direction of the flap is open, an air inlet and an air outlet of the casing (1) are both located at the opening of the casing (1), and the remaining area of the opening of the casing (1) outside the air inlet and the air outlet serves as an area to be sealed.

17. The air guiding device as recited in any one of claims 1 to 14, wherein the flow width of the first air outlet flow channel (1 a) is 0.8 to 1.2 times the flow width of the second air outlet flow channel (1 b).

18. The wind guiding device according to any one of claims 12-14, wherein the first volute tongue portion (41) and the second volute tongue portion (42) are identical in shape and are symmetrically arranged.

19. A clothes drying apparatus, comprising:

a clothes drying cylinder;

a circulating air duct;

and the air ducting device as claimed in any one of claims 1 to 18, wherein the air flow in the circulating air duct is guided to the drying cylinder through the casing (1).