CN217781531U - Clothes dryer - Google Patents

Abstract

The utility model provides a clothes dryer for air-dry clothing, including cylinder, fan and spiral case. The roller is used for accommodating an article to be air-dried, and a plurality of vent holes are formed in one end face of the roller; the fan is arranged outside the roller to provide airflow for the roller; the volute cover is arranged on the vent hole; a circular air cavity is formed in the volute; an air inlet is formed in the peripheral side of the volute and communicated with the fan; one end face of the volute, which faces the roller, is provided with an air outlet, and the air outlet covers all the air vents; the axis of the air cavity is provided with a splitter column, and the splitter column divides the airflow introduced from the fan into two different parts. Two parts air current all flows along the inside wall circulation in wind chamber to in the symmetry department collision of the wind chamber department of admitting air that uses the reposition of redundant personnel post as the center, the refluence is in order forming two little benign vortexes respectively again, makes the air current pass through the gas outlet in the leading-in cylinder of a plurality of ventilation holes, with air-dry clothing, make this dryer air supply even, dry clothing efficient, the energy consumption is lower.

Description

Clothes dryer

Technical Field

The utility model relates to the technical field of electrical apparatus, in particular to clothes dryer.

Background

With the development of science and technology, various household appliances are full of people's daily life, wherein, the clothes dryer has become the common appliance in people's daily life, and it can accelerate the clothes drying process, lets people adapt to the environment that the humidity is different.

However, in the clothes dryer on the market at present, a full-arc air duct is adopted, a vortex with high strength and large characteristic size is formed inside the air duct in the clothes drying process, the vortex with large characteristic size causes serious air volume loss in the rotating and backflow processes, the uniformity of air supply is influenced, the clothes drying efficiency is poor, and the energy consumption is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a clothes dryer that air supply is even, dry clothing is efficient, the energy consumption is lower.

In order to solve the technical problem, the utility model adopts the following technical scheme:

according to an aspect of the present invention, the present invention provides a clothes dryer for air-drying clothes, including a drum, a fan, and a spiral case. The roller is used for accommodating articles to be air-dried, and a plurality of vent holes are formed in one end face of the roller; the fan is arranged outside the roller to provide airflow for the roller; the volute cover is arranged on the vent hole; a circular air cavity is formed in the volute; an air inlet is formed in the peripheral side of the volute and communicated with the fan; an air outlet is formed in one end face, facing the roller, of the volute and covers all the air vents; and a flow dividing column is arranged at the axis of the air cavity and divides the airflow introduced from the fan into two different parts.

In some embodiments, the splitter column is cylindrical, the radius of the wind cavity is R, and the radius of the splitter column is 0.2R to 0.4R.

In some embodiments, the splitter cylinder is diamond shaped, or tapered, to split the gas flow at the gas inlet into two uniform streams.

In some embodiments, the inner peripheral wall of the wind cavity protrudes inwards to form a flow guide protrusion, and the flow guide protrusion extends along the axial direction of the wind cavity; the guide bulges are distributed around the axis of the wind cavity.

In some embodiments, the guide protrusion protrudes in a radial direction of the wind cavity, and two side walls of the guide protrusion and an inner peripheral wall of the wind cavity are in smooth transition.

In some embodiments, the length of the guide protrusion extending along the radial direction of the wind cavity is 0.2R to 0.4R.

In some embodiments, the distance between the bottom ends of the two side walls of the flow guide protrusion is 0.2R-1.2R.

In some embodiments, the fan is communicated with the air cavity through an air inlet, and one of the flow guide protrusions, the flow dividing column and the air inlet are positioned on the same straight line.

In some embodiments, the shape of the flow guide projection is conical or arc-shaped.

In some embodiments, the end of the volute casing facing the roller is provided with a connecting cylinder protruding outwards, and the radius of the inner periphery of the connecting cylinder is larger than that of the air cavity; in the direction perpendicular to the wind cavity, the wind cavity is positioned in the enclosing range of the connecting cylinder; the side wall of the connecting cylinder back to the roller is abutted to the side wall of the air cavity, and the side wall of one end, facing the roller, of the connecting cylinder is provided with an opening to form the air outlet.

According to the above technical scheme, the utility model discloses following advantage and positive effect have at least:

the utility model discloses in, air-dried clothing is treated to holding in clothes dryer's the cylinder, the fan operation, in order to channel into the wind intracavity of spiral case with external air current, the air current gets into behind the wind chamber, split into two parts that flow direction is different by the reposition of redundant personnel post, the inside wall circulation in wind chamber is all followed to two parts air current, and in the symmetry department collision of the wind chamber department of admitting air that uses the reposition of redundant personnel post as the center, the rethread flows back respectively in order to form two little benign vortexes, make the air current pass through the leading-in cylinder in a plurality of ventilation holes of gas outlet follow, in order to air-dry the clothing, make this clothes dryer air supply even, dry clothing is efficient, the energy consumption is lower.

Drawings

Fig. 1 is a schematic structural diagram of a clothes drying mechanism of an embodiment of the clothes dryer of the present invention.

Fig. 2 is a left side view of the structure shown in fig. 1.

Fig. 3 is a front view of the structure shown in fig. 1.

Fig. 4 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A in fig. 2.

Fig. 5 is an exploded view of a drying mechanism of an embodiment of the dryer of the present invention.

Fig. 6 is a schematic structural diagram of a volute of an embodiment of the clothes dryer of the present invention.

Fig. 7 is a schematic view of the structure of fig. 6 from another angle.

Fig. 8 is an airflow trend diagram of an air chamber of an embodiment of the clothes dryer of the present invention.

Fig. 9 is a left side view of the volute casing of the embodiment of the clothes dryer of the present invention.

The reference numerals are illustrated below: 100. a drum; 110. a vent hole; 200. a fan; 300. a volute; 310. a wind cavity; 320. an air inlet; 330. an air outlet; 340. a flow-dividing column; 350. flow guide bulges; 351. a first flow guide bulge; 352. a second flow guide bulge; 353. a third flow guide bulge; 360. a connecting cylinder.

Detailed Description

Exemplary embodiments that embody features and advantages of the present invention will be described in detail in the following description. It is to be understood that the invention is capable of other and different embodiments, and its several details are capable of modification in various other respects, all without departing from the scope of the invention, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" 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, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

At present, with the development of science and technology, in order to facilitate people's lives, various home appliances have begun to enter people's lives, wherein clothes dryers have gradually begun to enter thousands of households. However, most of clothes dryers on the market transmit external airflow into the drum through the volute casing by the fan, when the airflow enters the volute casing, the airflow circularly circulates along the inner wall of the volute casing and finally reflows and collides at the air inlet of the volute casing, a high-speed rotary vortex with huge characteristic dimension is gradually formed in the volute casing during the circulation process of the airflow, and the reflowed airflow after circulation collides with the air inlet airflow of the air inlet, so that the flow state in the whole volute casing is complex, the turbulence is severe, the air volume loss is large, and the flow speed uniformity is poor; and the air flow in the volute forms a wind eye structure, the wind speed is gradually increased along the radial increasing direction of the volute, and the clothes drying effect is poor.

For ease of understanding and description, with reference to the stationary state of the dryer, the direction of the volute relative to the drum is hereinafter referred to as the front, and the direction away from the front is referred to as the rear; the direction of the fan relative to the volute is the lower part below, and the direction deviating from the lower part is the upper part.

Fig. 1 is a schematic structural diagram of a clothes drying mechanism of an embodiment of the clothes dryer of the present invention.

Referring to fig. 1, the present invention provides a clothes dryer including a drum 100, a blower 200, and a scroll 300. The drum 100 is used to house articles to be air-dried. The scroll 300 is covered on the front end surface of the drum 100, and the space inside the scroll 300 is communicated with the space inside the drum 100. The blower 200 is disposed outside the drum 100, the blower 200 is communicated with the volute 300, and the blower 200 guides an external air flow into the volute 300 and transmits the external air flow to the inside of the drum 100 to dry the articles inside the drum 100.

The structural combination of the drum 100, the fan 200 and the volute 300 forms a drying mechanism, and the drying mechanism can also be applied to equipment such as a washing machine, a drying and washing all-in-one machine and the like.

Fig. 2 is a left side view of the structure shown in fig. 1. Fig. 3 is a front view of the structure shown in fig. 1. Fig. 4 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A in fig. 2.

In this embodiment, the drum 100 is a cylindrical structure, and has an accommodating space therein for accommodating the belt to air-dry the laundry, the drum 100 extends along the rotation axis in the front-back direction, and the drum 100 can rotate around the rotation axis, so that the articles in the drum 100 can be uniformly air-dried. Specifically, the drum 100 is cylindrical.

A vent 110 is opened on an end surface of the drum 100 facing the volute 300, the vent 100 is communicated with an inner space of the volute 300, and then communicated with the fan 200 through the volute 300, so as to transmit the air flow in the fan 200 and the volute 300 to the inside of the drum 100.

Specifically, the ventilation holes 110 are distributed on an end surface of the drum 100 facing the scroll 300. In some embodiments, the plurality of ventilation holes 110 are evenly distributed.

Fig. 5 is an exploded view of a drying mechanism of an embodiment of the dryer of the present invention. Fig. 6 is a schematic structural diagram of a volute of an embodiment of the clothes dryer of the present invention. Fig. 7 is a schematic view of the structure shown in fig. 6 from another angle. Fig. 8 is an airflow trend diagram of the air chamber of the embodiment of the clothes dryer of the present invention.

Referring to fig. 4 to 8, in the present embodiment, an impeller is provided inside the blower 200 to transmit an air flow outside the blower 200 into an inner space of the scroll 300. Specifically, the air outlet of the fan 200 is disposed on the peripheral sidewall of the fan 200, and the air outlet of the fan 200 is communicated with the peripheral sidewall of the volute 300. A transfer passage between the fan 200 and the scroll 300 is gently transited from the peripheral sidewall of the scroll 300 along the sidewall in the left-right direction. At least one side wall of the transfer passage in the left-right direction is tangent to the peripheral side wall of the scroll 300.

In this embodiment, the volute 300 has an air chamber 310 with an arc-shaped peripheral sidewall, an air inlet 320 of the volute 300 is located at a position where the peripheral sidewall of the air chamber is connected to the fan 200, an air outlet 330 is opened at one end surface of the air chamber 310 facing the drum 100, and the air chamber 310 is communicated with the inner space of the drum 100 through the air outlet 330 and the ventilation hole 110. Specifically, the air cavity 310 is a circular structure, the peripheral side wall of the air cavity 310 is tangent to the side wall of the transmission channel, and the radius of the air cavity is R. The air outlet 330 covers the entire vent 110.

Referring to fig. 5, 6 and 7, in this embodiment, a splitter 340 is disposed at an axis of the air cavity 310, the splitter 340 can divide the air flow entering the air cavity 310 through the air inlet 320 by the fan 200 into two air flows with different flow directions, and the two air flows, after flowing along an inner wall of the air cavity 310, collide with each other at a symmetrical position of the air inlet 320 of the air cavity 310 with the splitter 340 as a center, so that the air flow does not form an air eye structure, and no obvious wind speed gradient exists in the air flow transmitted from the air outlet 330 to the air vent 110, so that the air-dried air flow received by the space inside the drum 100 is relatively uniform, and the air-drying efficiency is improved.

In some embodiments, the splitter post 340 extends along the axis of the wind chamber 310 such that the volute 300 is disposed behind the drum 100, and the rear end of the splitter post 340 can abut against the front end surface of the drum 100.

In this embodiment, the splitter column 340 is cylindrical. In order to achieve a good flow dividing effect, the radius of the flow dividing column is 0.2R-0.4R, and the air flow can be ensured to flow along the inner wall of the air cavity 310 after entering the air cavity 310. In some embodiments, the splitter column 340 is diamond shaped or tapered in the fore-aft direction. In some embodiments, the lateral edges of the splitter column 340 face the inlet 320.

In this embodiment, the inner peripheral wall of the wind chamber 310 is formed with a guide protrusion 350 protruding inward, and the guide protrusion 350 extends along the axial direction of the wind chamber so as to abut against the front and rear end surfaces of the wind chamber 310. Specifically, the guide protrusion 350 protrudes toward the axis of the wind cavity 310, and two sidewalls of the guide protrusion 350 smoothly transition with the inner peripheral wall of the wind cavity 310. The guide protrusion 350 is provided in plurality around the axis of the wind chamber 310.

In this embodiment, the length of the guide protrusion extending along the radial direction of the wind cavity is 0.2R to 0.4R. The distance between the two ends of the two side walls of the flow guide bulge 350, which are away from the flow distribution column, is 0.2R-1.2R.

Referring to fig. 6, 7 and 8, in the present embodiment, there are three guide protrusions 350. Three water conservancy diversion arch 350 interval sets up to be formed with the air trapping region between the protruding 350 of messenger's adjacent water conservancy diversion, after the air current got into the air trapping region, the structural configuration guide of air-receiving chamber 310 just can form the less benign swirl of a characteristic dimension wherein respectively, and two benign swirls can not interfere each other moreover and cause the disorder, thereby eliminate the large-scale swirl and the backward flow collision loss in traditional spiral case wind channel, increased the air supply volume.

Specifically, the flow guide protrusion 350 includes a first flow guide protrusion 351, a second flow guide protrusion 352, and a third flow guide protrusion 353. The first guide protrusion 351 is aligned with the flow dividing column 340 and the air inlet 320. The second and third flow guide protrusions 352 and 353 are disposed on two sides of the first flow guide protrusion 351. In the present embodiment, the second flow guiding protrusion 352 and the third flow guiding protrusion 353 are symmetrically disposed on the straight line connecting the first protrusion 351 and the flow dividing column 340.

After the first flow guiding protrusion 351, the second flow guiding protrusion 352 and the third flow guiding protrusion 353 are disposed, the airflow enters the air cavity 310 from the air inlet 320, flows around the circular sidewall of the air cavity 310, and is guided by the second flow guiding protrusion 352 and the third flow guiding protrusion 353 toward a sidewall of the air inlet 320, so that the airflow is turned and flows toward the upper end of the splitter column 340. When the air flow guided by the second flow guiding protrusion 352 and the air flow guided by the third flow guiding protrusion 353 contact with each other at the first flow guiding protrusion 351, the air in the two air trapping regions is affected by the two air flows and the first flow guiding protrusion 351, so that benign vortexes are formed in the air trapping regions between the first flow guiding protrusion 351 and the second flow guiding protrusion 352 and between the first flow guiding protrusion 351 and the third flow guiding protrusion 353. In the front-to-rear direction, the benign vortex between the first guide protrusion 351 and the second guide protrusion 352 rotates counterclockwise, and the benign vortex between the first guide protrusion 351 and the third guide protrusion rotates clockwise. The formation of the benign swirl in two stranded air regions can not interfere each other and cause disorder, reduces the return loss of the air flow, and increases the air output and simultaneously makes the air speed of the air flow passing through the plurality of air vents 110 more uniform.

In some embodiments, there is one flow guide protrusion 350, and one flow guide protrusion 350 is aligned with the flow dividing column 340 and the air inlet 320.

Fig. 9 is a left side view of the volute of the embodiment of the clothes dryer of the present invention.

Referring to fig. 5, 6 and 9, in the present embodiment, a connecting cylinder 360 is convexly formed at one end of the volute 300 facing the drum 100, a radius of an inner circumferential wall of the connecting cylinder 360 is greater than a radius of the air cavity 310, and in a front-to-rear direction, the air cavity 310 is located within an enclosing range of the inner circumferential wall of the connecting cylinder 360. The rear end of the connecting cylinder 360 is opened to form the air outlet 330. The rear end surface of the connecting cylinder 360 is covered on the front end surface of the drum 100, and the air outlet 330 communicates with all the air vents 110. The front side wall of the connecting cylinder 360 is in smooth transition with the inner peripheral wall of the wind cavity 310. Specifically, the inner peripheral wall of the air cavity 310 and the side wall of the guide protrusion 350 vertically abut against the front end surface of the connecting cylinder 360, and the air cavity 310 penetrates through the air guiding cylinder 360 along the front-to-back direction.

Referring to fig. 1 to 9, in the present embodiment, the fan 200 is activated to introduce an external airflow into the air chamber 310 of the volute 300 through the air inlet 320 of the volute 300. After entering the air cavity 310, the airflow is divided into two airflows with different directions by the dividing column 340, and the two airflows flow along the inner walls of the left side and the right side of the air cavity 310 respectively.

After the left airflow flows to the second flow guide protrusion 352, the left airflow flows along the lower side wall of the second flow guide protrusion 352, and after the left airflow flows out of the lower side wall of the second flow guide protrusion 352, the left airflow continues to flow along the extending direction of the lower side wall of the second flow guide protrusion 352, and in the flowing process, the airflow in the trapped air area between the first flow guide protrusion 351 and the second flow guide protrusion 352 is driven to flow along with the first flowing of the left airflow.

After the right airflow flows to the third flow guide projection 353, the right airflow flows along the side wall of the lower portion of the third flow guide projection 353, and after the airflow flows out of the side wall of the lower portion of the third flow guide projection 353, the right airflow continues to flow along the extending direction of the side wall of the lower portion of the third flow guide projection 353, and in the flowing process, the airflow in the air trapping area between the first flow guide projection 351 and the third flow guide projection 353 is driven to flow along with the first flowing of the right airflow.

And partial airflows of the left-side airflow and the right-side airflow collide with each other at the first flow guide protrusion 351, and the left-side airflow forms a benign vortex with a small characteristic dimension in the air trapping region between the first flow guide protrusion 351 and the second flow guide protrusion 352 under the influence of the air trapping region and the structure of the first flow guide protrusion 351. Under the influence of the air trapping region and the structure of the first flow guiding protrusion 351, a benign vortex with a small characteristic dimension is formed in the air trapping region between the first flow guiding protrusion 351 and the third flow guiding protrusion 353. The two benign swirls do not interfere with each other to cause disorder, thereby eliminating large-scale swirls and backflow collision loss of the conventional dryer volute 300 and increasing the air supply amount. Meanwhile, the air flow in the air cavity 310 passes through the air outlet 330, and the flow velocity of the air flow introduced into the drum 100 at each air vent 110 is relatively uniform, so that no obvious velocity gradient exists, and the drying effect is improved.

The utility model discloses in, air-dried clothing is treated to holding in clothes dryer's the cylinder 100, fan 200 operation, in the leading-in wind chamber 310 to spiral case 300 with external air current, the air current gets into behind the wind chamber 310, split post 340 and cut apart into two parts that flow direction is different, the inside wall circulation of wind chamber 310 is all followed to two parts air current, and the symmetry department collision of the wind chamber 310 department of admitting air that uses split post 340 as the center, the subdividing do not flow back in order to form two little benign vortexes, make the air current pass through gas outlet 330 from a plurality of ventilation holes 110 in leading-in cylinder 100, in order to air-dry the clothing, make this clothes dryer air supply even, dry clothing is efficient, the energy consumption is lower.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the metes and bounds of the claims, or equivalence of such metes and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A clothes dryer for air drying clothes, comprising:

the air drying device comprises a roller and a drying device, wherein the roller is used for accommodating an article to be dried, and a plurality of vent holes are formed in one end surface of the roller;

the fan is arranged outside the roller and used for providing airflow for the roller;

the volute is covered on the vent hole; a circular air cavity is formed in the volute; an air inlet is formed in the peripheral side of the volute and communicated with the fan; an air outlet is formed in one end face, facing the roller, of the volute and covers all the air vents; and a flow dividing column is arranged at the axis of the air cavity and divides the airflow introduced from the fan into two different parts.

2. The clothes dryer of claim 1, wherein the splitter column is cylindrical, the radius of the air chamber is R, and the radius of the splitter column is 0.2R to 0.4R.

3. The clothes dryer of claim 2 wherein the splitter cylinder is diamond shaped or tapered to split the air flow at the air inlet into two uniform streams.

4. The clothes dryer of claim 2, wherein a flow guide protrusion is formed on the inner peripheral wall of the air cavity in an inward protruding manner, and the flow guide protrusion extends along the axial direction of the air cavity; the guide bulges are distributed around the axis of the wind cavity.

5. The clothes dryer of claim 4, wherein the guide protrusion protrudes in a radial direction of the air chamber, and two sidewalls of the guide protrusion and an inner circumferential wall of the air chamber are smoothly transited.

6. The clothes dryer of claim 5, wherein the length of the guide protrusion extending along the radial direction of the air chamber is 0.2R to 0.4R.

7. The clothes dryer of claim 6, wherein the distance between the bottom ends of the two sidewalls of the guide protrusion is 0.2R to 1.2R.

8. The clothes dryer of claim 4 wherein one of said flow guide protrusions, said splitter cylinder and said air inlet are in a same line.

9. The clothes dryer of claim 4 wherein the shape of the flow guide projection is a cone or an arc.

10. The clothes dryer according to claim 1, wherein an end of the spiral case facing the drum is provided with a connection cylinder protruding outward, and a radius of an inner circumference of the connection cylinder is larger than a radius of the air chamber; in the direction perpendicular to the wind cavity, the wind cavity is positioned in the enclosing range of the connecting cylinder; the side wall of the connecting cylinder back to the roller is abutted to the side wall of the air cavity, and the side wall of one end, facing the roller, of the connecting cylinder is provided with an opening to form the air outlet.

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