CN220813106U

CN220813106U - Drying device

Info

Publication number: CN220813106U
Application number: CN202322364107.1U
Authority: CN
Inventors: 卞国龙; 许升; 郝世龙
Original assignee: Qingdao Haier Washing Machine Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Washing Machine Co Ltd; Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-04-19
Anticipated expiration: 2033-08-31

Abstract

The utility model relates to the technical field of clothes treatment equipment, and particularly provides a drying device. Aims at solving the problems that in the prior art, the drying device is easy to generate air flow disturbance at the air supply part and noise is easy to generate. The utility model provides a drying device, which comprises a centrifugal fan, wherein the centrifugal fan comprises a shell and an impeller which is arranged in the shell in a autorotation way, the impeller comprises a chassis and a plurality of fan blades arranged on one side of the chassis, and a notch is formed in one side, close to a central shaft of the chassis, of the fan blades. Based on the above structure setting, this centrifugal fan is through setting up the incision for the air-out area of flabellum increases, and the air current can flow out rapidly, avoids gas pressure too big production noise, and then solves drying device and takes place the problem of air current disorder and noise easily at the air supply position.

Description

Drying device

Technical Field

The utility model relates to the technical field of clothes treatment equipment, and particularly provides a drying device.

Background

With the development of social economy, clothes treatment equipment with a drying function is popular, and especially in areas with high humidity, the clothes drying function of the clothes treatment equipment with the drying function meets the demands of people on the urgent drying of clothes. The drying device generally uses a heat pump to compress a refrigerant so as to pressurize and heat the refrigerant, the refrigerant is sent into a condenser to release heat, the condenser is connected with an air path in the clothes dryer to release dry air, the refrigerant enters a capillary tube from the condenser to rapidly reduce the pressure temperature and then enters an evaporator, the evaporator is also connected with a drying air path to change moist hot air into dry cold air, the operation of the refrigerant is matched with the rolling of a roller in clothes drying equipment, and the drying fan supplies air to realize the effect of drying clothes.

In the prior art, drying device is connected with the wind channel to for dryer air supply, because the wind channel back lid is to the stoving section of thick bamboo in the air supply position for spiral case position diameter is great, the wind that the fan sent is blown forward along the spiral case, takes place the air current disorder at the air supply position easily, forms the torrent, influences the amount of wind in getting into the section of thick bamboo, also takes place the noise easily, influences user experience.

There is a need in the art for a drying apparatus that solves the above-mentioned problems.

Disclosure of utility model

The utility model aims to solve the technical problems that in the prior art, the drying device is easy to generate air flow disturbance at an air supply part and noise.

The utility model provides a drying device, which comprises a centrifugal fan, wherein the centrifugal fan comprises a shell and an impeller which is arranged in the shell in a autorotation way,

The impeller comprises a chassis and a plurality of fan blades arranged on one side of the chassis, and a notch is formed in one side, close to the central shaft of the chassis, of each fan blade.

In a specific embodiment of the above drying device, the oblique edge of the notch is a straight line.

In a specific embodiment of the above drying device, the incision comprises a first cut edge and a second cut edge, wherein the length of the first cut edge is smaller than the length of the second cut edge,

The fan blade comprises a first side edge and a second side edge, wherein the first side edge is positioned at one side of the fan blade close to the central shaft of the chassis, the second side edge is positioned at one side of the fan blade far away from the chassis,

The first edge is arranged on the first side edge, the second edge is arranged on the second side edge, or

The first trimming is arranged on the second side edge, and the second trimming is arranged on the first side edge.

In the specific embodiment of the drying device, the oblique edge of the notch is an arc.

In the specific embodiment of the drying device, the oblique edge of the notch is a straight line and an arc line which is connected with the straight line and is in smooth transition.

In the specific embodiment of the drying device, the fan blade is a rectangular blade which is bent along the fan blade,

The fan blades are circumferentially arrayed along the central axis of the chassis and are integrally inclined outwards.

In the specific embodiment of the drying device, the fan blade is a right trapezoid blade which is bent along the fan blade,

The hypotenuse of right trapezoid blade is close to the center pin side of chassis.

In the specific embodiment of the drying device, the drying device also comprises an air duct and a drying box,

One side of the drying box is provided with a plurality of air inlets,

One end of the air channel is communicated with the centrifugal fan, and the other end of the air channel is communicated with the drying box through the air inlet.

In the specific embodiment of the drying device, a filter screen is arranged at one side of the air inlet close to the air duct,

The air duct is internally provided with a wind resistance detection device and a pneumatic cleaning device, wherein the wind resistance detection device is configured to detect a wind resistance value of the filter screen, and the pneumatic cleaning device is configured to clean the filter screen.

In the specific embodiment of the drying device, the air duct is also provided with a sound insulation device,

The sound insulation device is attached to the surface of the air duct.

Under the condition of adopting the technical scheme, the centrifugal fan provided by the utility model comprises a shell and an impeller which is arranged in the shell in a autorotation manner, wherein the impeller comprises a chassis and a plurality of fan blades arranged on one side of the chassis, and a notch is formed on one side of each fan blade, which is close to the central shaft of the chassis. Based on the above structure, this centrifugal fan is through setting up the incision for the air-out area of flabellum increases, and the air current can flow out rapidly, avoids gas pressure too big production noise.

Furthermore, the drying device provided by the utility model limits the inclined edge of the notch to be a straight line, so that the process difficulty is reduced, and the production efficiency is improved.

Further, the drying device provided by the utility model is limited in that the first trimming edge is arranged on the first side edge, the second trimming edge is arranged on the second side edge, or the first trimming edge is arranged on the second side edge, the second trimming edge is arranged on the first side edge, and a technician can select the shape of the incision according to the noise reduction effect.

Further, the drying device provided by the utility model further defines that the inclined edge of the notch can be an arc line or a straight line and an arc line which is connected with the straight line and is in smooth transition.

Further, the drying device provided by the utility model limits that the fan blade can be rectangular, and the whole fan blade is inclined outwards, so that the air inlet area of the fan blade is smaller than the air outlet area, and the noise of the centrifugal fan is reduced.

Furthermore, the drying device provided by the utility model limits that the fan blade can also be a right trapezoid blade, and the inclined edge of the right trapezoid blade is inclined near one side of the central shaft of the chassis, so that the wind inlet area of the blade is reduced, and the noise of the centrifugal fan is further reduced.

Further, the drying device provided by the utility model is limited with the air duct and the drying box, the drying device inputs the air blown out by the centrifugal fan into the drying box through the air duct so as to dry clothes, and the air pressure can be increased by arranging the plurality of air inlets, so that the drying capacity of the drying device is improved.

Further, the wind resistance detection device and the pneumatic cleaning device are arranged at the filter screen of the drying device, the wind resistance detection device automatically detects the wind resistance value of the current filter screen, and when the wind resistance value is smaller, the ventilation state of the current filter screen is better; when the wind resistance value is larger, the ventilation state of the current filter screen is poorer. Therefore, when the wind resistance value is larger than the threshold value, the pneumatic cleaning device is controlled to be started to clean the filter screen, and the cleanliness of the filter screen is maintained.

Further, the drying device provided by the utility model is limited with the sound insulation device, so that noise at the air duct can be reduced.

Drawings

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings, in which:

Fig. 1 is a schematic structural view of a centrifugal fan in a drying device provided by the utility model;

Fig. 2 is a schematic structural view of a first embodiment of a fan blade notch in the drying device according to the present utility model;

FIG. 3 is a schematic view of a second embodiment of a fan blade notch in a drying device according to the present utility model;

Fig. 4 is a schematic structural view of a third embodiment of a fan blade notch in the drying device according to the present utility model;

Fig. 5 is a schematic structural view of a fourth embodiment of a fan blade notch in the drying device according to the present utility model;

FIG. 6 is a schematic view of a first embodiment of a fan blade in a drying device according to the present utility model;

Fig. 7 is a schematic structural diagram of a second embodiment of fan blades in the drying device provided by the utility model.

Reference numerals:

1. A centrifugal fan; 11. an impeller; 111. a chassis; 112. a fan blade; 1121. a first side; 1122. a second side; 1123. a beveled edge; 113. a notch; 1131. a first trimming step; 1132. a second trimming step; 1133. and (5) a bevel blade.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model. Those skilled in the art can adapt it as desired to suit a particular application. For example, although the present embodiment is described in connection with a case where the drying apparatus is applied to a laundry care machine, it is apparent that the drying apparatus of the present utility model may be also applied to other devices. Such changes in the application scenario do not deviate from the basic principle of the present utility model and fall within the scope of the present utility model.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

It should be noted that, in the description of the preferred embodiment, unless explicitly stated and limited otherwise, the terms "connected" and "connected" should be interpreted broadly, for example, they may be directly connected, or indirectly connected through an intermediate medium, or may be connected internally between two elements, and these should not be interpreted as limiting the present utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only, and the specific meaning of the terms in the present utility model will be understood by those skilled in the art according to the specific circumstances.

With the development of social economy, clothes treatment equipment with a drying function is popular, and especially in areas with high humidity, the clothes drying function of the clothes treatment equipment with the drying function meets the demands of people on the urgent drying of clothes. The existing clothes drying equipment in the market generally comprises a heat pump type and a condensation type, wherein the heat pump type drying is to utilize heat pump compression to pressurize and heat a refrigerant, the refrigerant is sent into a condenser to release heat, the condenser is connected with an air path in a clothes dryer to release dry air, the pressure and the temperature of the refrigerant enter a capillary tube from the condenser to be rapidly reduced, the refrigerant enters an evaporator, the evaporator is also connected with a drying air path to change moist hot air into dry cold air, the operation of the refrigerant is matched with the tumbling of a roller in the clothes drying equipment, and the drying fan supplies air to realize the effect of drying clothes; the condensing type drying is to heat air by a heater to become dry hot air, send the dry hot air into a roller in clothes drying equipment, change the dry hot air into damp hot air after passing through clothes, guide the damp hot air into a condensing pipe to become dry cold air, send the dry cold air into the heater to heat and send the dry cold air into the roller under the action of a fan, and continuously discharge the moisture of the clothes by circulation, thereby achieving the aim of drying the clothes.

First, referring to fig. 1, fig. 1 is a schematic structural diagram of a centrifugal fan in a drying device according to the present utility model. As shown in fig. 1, the drying device provided by the utility model comprises a centrifugal fan 1, wherein the centrifugal fan 1 comprises a shell (not shown in the figure) and an impeller 11 rotatably arranged in the shell, the impeller 11 comprises a chassis 111 and a plurality of fan blades 112 arranged on one side of the chassis 111, and a notch 113 is arranged on one side of the fan blades 112 close to the central axis of the chassis 111. Based on the above structure, the centrifugal fan 1 is provided with the notch 113, so that the air outlet area of the fan blade 112 is increased, the air flow can flow out rapidly, and noise generated by overlarge air pressure is avoided.

Alternatively, referring to fig. 2 to 5, fig. 2 to 5 are schematic structural views of blade cuts in the drying device according to the present utility model. The present utility model provides a number of possible embodiments for the configuration of the slit 113.

In one possible embodiment, as shown in fig. 2, the inclined edge 1133 of the notch 113 is a straight line, so that the notch 113 is triangular, and the structure is simpler, so that the process difficulty can be reduced, and the production efficiency can be improved.

Specifically, the cutout 113 includes a first cut 1131 and a second cut 1132, wherein the length of the first cut 1131 is less than the length of the second cut 1132, and the fan blade 112 includes a first side 1121 and a second side 1122, wherein the first side 1121 is located on a side of the fan blade 112 near a central axis of the chassis 111, and the second side 1122 is located on a side of the fan blade 112 away from the chassis 111.

Alternatively, referring to fig. 2, the first cut edge 1131 may be disposed on the first side edge 1121, the second cut edge 1132 may be disposed on the second side edge 1122, or, referring to fig. 3, the first cut edge 1131 may be disposed on the second side edge 1122, and the second cut edge 1132 may be disposed on the first side edge 1121.

In other possible embodiments, referring to fig. 4, the bevel edge 1133 of the notch 113 is an arc, referring to fig. 5, the bevel edge 1133 of the notch 113 is a straight line and an arc that is connected with the straight line and transitions smoothly, and those skilled in the art can select the shape of the notch 113 according to the noise reduction requirement of the actual structure.

Alternatively, referring to fig. 6 to 7, fig. 6 to 7 are schematic structural diagrams of fan blades in the drying device provided by the utility model. The present utility model provides a number of possible embodiments for the configuration of fan blades 112.

In a first possible embodiment, as shown in fig. 6, the blades 112 are rectangular blades curved on themselves, and the blades 112 are circumferentially arrayed along the central axis of the chassis 111 and are inclined outward as a whole. In this embodiment, since the fan blades 112 are inclined outwards, the air inlet area of the fan blades 112 is reduced, and the air outlet area is increased, so that the air inlet area is smaller than the air outlet area, and the noise of the centrifugal fan 1 can be reduced.

In a second possible embodiment, as shown in fig. 7, the fan blade 112 is a right trapezoid blade curved along itself, and the bevel edge 1123 of the right trapezoid blade is near the central axis side of the chassis 111. In this embodiment, since the fan blade 112 is a right trapezoid having the inclined side 1123, the air outlet area of the fan blade 112 is increased on the premise that the air inlet area of the fan blade 112 is not changed, and the air inlet area is smaller than the air outlet area, so that the noise of the centrifugal fan 1 can be reduced.

In the preferred embodiment, the drying device provided by the utility model further comprises an air duct (not shown in the figure) and a drying box (not shown in the figure), one side of the drying box is provided with a plurality of air inlets, one end of the air duct is communicated with the centrifugal fan, the other end of the air duct is communicated with the drying box through the air inlets, so that clothes are dried, and the air pressure can be increased and the drying capacity of the drying device is improved by arranging the plurality of air inlets.

In the preferred embodiment, a filter screen is arranged on one side, close to the air duct, of the air inlet, and a wind resistance detection device and a pneumatic cleaning device are arranged in the air duct, wherein the wind resistance detection device is configured to detect a wind resistance value of the filter screen, and the pneumatic cleaning device is configured to clean the filter screen. When the drying device starts the drying module, the wind resistance detection device automatically detects the wind resistance value of the current filter screen, and it can be understood that when the wind resistance value is smaller, the ventilation state of the current filter screen is better; when the wind resistance value is larger, the ventilation state of the current filter screen is poorer. Therefore, when the distance wind resistance value is larger than the threshold value, the pneumatic cleaning device is controlled to be started to clean the filter screen, and the cleanliness of the filter screen is maintained.

In the preferred embodiment, the air duct is further provided with a sound insulation device, and the sound insulation device is attached to the surface of the air duct so as to reduce vibration of the air duct and further reduce noise at the air duct. In the preferred embodiment, the sound insulation device comprises a sound absorption part and a fixing part, the fixing part is arranged on the air duct, and the sound absorption part is arranged between the fixing part and the air duct. The sound absorbing part is internally provided with a sound absorbing material so as to reduce vibration, and the fixing part is used for fixedly connecting the sound absorbing part with the air duct to prevent the sound absorbing part from slipping and falling.

It should be noted that the above-mentioned embodiments are merely for illustrating the principles of the present utility model, and are not intended to limit the scope of the utility model, and those skilled in the art can modify the above-mentioned structure to apply the present utility model to more specific application scenarios without departing from the principles of the present utility model.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims

1. A drying device is characterized in that the drying device comprises a centrifugal fan, the centrifugal fan comprises a shell and an impeller which is arranged in the shell in a autorotation way,

2. The drying apparatus according to claim 1, wherein the oblique edge of the slit is a straight line.

3. The drying apparatus of claim 2, wherein the cutout comprises a first cut and a second cut, wherein a length of the first cut is less than a length of the second cut,

4. The drying apparatus of claim 1, wherein the beveled edge of the cutout is curved.

5. The drying apparatus according to claim 1, wherein the oblique edge of the slit is a straight line and an arc line connected to the straight line and smoothly transiting.

6. The drying apparatus according to claim 1, wherein the fan blade is a rectangular blade curved along itself,

7. The drying apparatus according to claim 1, wherein the fan blades are right trapezoid blades curved along the fan blades,

8. The drying apparatus according to claim 1, further comprising an air duct and a drying box,

One side of the drying box is provided with a plurality of air inlets,

9. The drying device according to claim 8, wherein a filter screen is arranged on one side of the air inlet close to the air duct,

10. The drying apparatus according to claim 9, wherein the air duct is further provided with a sound insulation device,

The sound insulation device is attached to the surface of the air duct.