CN109853201B

CN109853201B - Clothes dryer and air duct assembly for same

Info

Publication number: CN109853201B
Application number: CN201711243967.2A
Authority: CN
Inventors: 朱传绪; 孔凡实; 熊明; 周鹏; 宋隆霖; 余冰冰
Original assignee: Wuxi Little Swan Co Ltd
Current assignee: Wuxi Little Swan Electric Co Ltd
Priority date: 2017-11-30
Filing date: 2017-11-30
Publication date: 2020-06-16
Anticipated expiration: 2037-11-30
Also published as: WO2019104856A1; CN109853201A

Abstract

The invention discloses a clothes dryer and an air duct assembly for the same, wherein the clothes dryer comprises: the shell assembly comprises a clothes drying cavity and an air inlet communicated with the clothes drying cavity; the air channel assembly is arranged on the shell assembly and comprises an airflow channel and a nozzle; the fan is arranged on the shell assembly and used for driving the airflow in the airflow channel to be sprayed out from the nozzle; the nozzle is arranged at the air inlet and sprays airflow towards the clothes drying cavity, and at least one section of cross section area of the nozzle is gradually reduced in the spraying direction of the airflow. According to the clothes dryer provided by the embodiment of the invention, better jet flow and drainage effects can be achieved, and wrinkles can be prevented from being generated and partial wrinkles can be removed.

Description

Clothes dryer and air duct assembly for same

Technical Field

The invention relates to the technical field of clothes treatment equipment, in particular to a clothes dryer and an air duct assembly for the clothes dryer.

Background

The dryer includes a drum type dryer, a cabinet type dryer, and the like. When the drum-type clothes dryer works, the problems of abrasion, wrinkles, knotting and the like easily occur to clothes, and the noise is large during the work. Although the cabinet type clothes dryer can prevent the generation of wrinkles in the clothes drying process, the cabinet type clothes dryer is better than the drum type clothes dryer, the wrinkle removing capability also has a space for improving, and in addition, the clothes drying efficiency of the cabinet type clothes dryer is also lower.

Document US8484861B2 discloses a cabinet dryer having a large air inlet to introduce a large amount of hot air into the drying cavity, but the air speed of the hot air is low, the drying speed is slow, and the ability of removing wrinkles from the clothes is still to be improved. Accordingly, there is a need for improvement.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the clothes dryer provided by the invention has the advantages of high clothes drying efficiency, good clothes drying effect and particularly good crease-resist effect.

The invention further provides an air duct assembly for the clothes dryer.

A clothes dryer according to an embodiment of a first aspect of the present invention includes: the shell assembly comprises a clothes drying cavity and an air inlet communicated with the clothes drying cavity; the air channel assembly is arranged on the shell assembly and comprises an airflow channel and a nozzle; the fan is arranged on the shell assembly and used for driving the airflow in the airflow channel to be sprayed out from the nozzle; the nozzle is arranged at the air inlet and faces the clothes drying cavity to spray air flow, and at least one section of cross section area of the nozzle is gradually reduced in the spraying direction of the air flow.

According to the clothes dryer provided by the embodiment of the invention, the air channel assembly is arranged on the shell assembly, the nozzle of the air channel assembly is arranged at the air inlet, and at least one section of cross section area of the nozzle is gradually reduced in the ejection direction of the air flow, so that better jet flow and drainage effects can be achieved, the clothes drying efficiency of the clothes dryer can be improved, the clothes in the clothes dryer can be blown by the high-speed air flow, wrinkles can be prevented from being generated, and partial wrinkles can be removed, so that the clothes drying effect is improved.

According to one embodiment of the invention, a gap is present between the outlet of the nozzle and the air inlet.

According to a further embodiment of the invention, the area of the outlet of the nozzle is smaller than the area of the air inlet.

According to a further embodiment of the present invention, the housing assembly includes an air outlet, and the air outlet and the air inlet are communicated through a flow guiding channel.

Optionally, the air duct assembly and the housing assembly define the drainage channel.

According to one embodiment of the invention, the air duct assembly further comprises an air inlet, and the air inlet is communicated with the fan.

Optionally, a heating module is arranged in the air flow channel, and the heating module is located between the air inlet and a nozzle adjacent to the air inlet in the air flow moving direction.

According to one embodiment of the invention, the air duct assembly comprises: a body portion defining at least a portion of the airflow passageway therein and having at least one of the nozzles, the body portion and the housing assembly defining at least a portion of the drainage passageway.

Optionally, a side of the body portion facing the housing assembly has a recess defining with the housing assembly at least a portion of the drainage channel.

According to a further embodiment of the present invention, the air duct assembly further comprises: a branch portion connected with the main body portion and defining a remaining portion of the airflow passage therein, and having at least one of the nozzles.

Optionally, the main body portion is arranged at the rear portion of the clothes drying cavity, the branch portion is arranged at the top of the clothes drying cavity, a hanging rod for hanging clothes is arranged in the clothes drying cavity, and the nozzles on the main body portion and the branch portion are located on two sides of the hanging rod.

In some examples, the cross-sectional area of the air inlet is larger than the cross-sectional area of the outlet of the nozzle, and the outlet of the nozzle is located in the middle of the air inlet in the orthographic projection of the plane of the air inlet.

In some examples, a ratio of a cross-sectional area B of the intake vent excluding an area occupied by the nozzle to a cross-sectional area a of an outlet of the nozzle is 2 to 50.

In some examples, the cross-sectional area of the nozzle decreases from the inlet of the nozzle to the outlet of the nozzle in the direction of the gas flow, and the ratio of the cross-sectional area C of the inlet of the nozzle to the cross-sectional area a of the outlet of the nozzle is 20 or less.

In some examples, the air duct assembly includes a plurality of the nozzles, and a wind shielding rib is provided in the plurality of the nozzles in an air flow direction near an inlet of the nozzle of the fan.

In some examples, the air duct assembly includes a plurality of the nozzles, the plurality of nozzles being arranged in series in a direction of flow of the gas, and the cross-sectional area of the gas flow passage gradually decreases in the direction of flow of the gas.

According to one embodiment of the invention, the housing assembly comprises: a housing; the inner container is arranged in the shell and provided with the clothes drying cavity, and the air duct assembly is arranged between the shell and the inner container and between the shell and the inner container to define the drainage channel.

According to the air duct assembly for the clothes dryer in the embodiment of the second aspect of the invention, the air duct assembly is provided with the air flow channel, the air inlet and the nozzle are respectively communicated with the air flow channel, and at least one section of cross section area of the nozzle is gradually reduced in the ejecting direction of the air flow.

According to the embodiment of the invention, the air duct assembly for the clothes dryer is applied to the clothes dryer, so that better jet flow and drainage effects can be achieved, the clothes drying efficiency of the clothes dryer can be improved, the clothes in the clothes dryer can be blown by high-speed air flow, wrinkles can be prevented from being generated, and partial wrinkles can be removed, so that the clothes drying effect is improved.

According to one embodiment of the invention, the air duct assembly comprises: a main body portion defining at least a portion of the airflow passage therein, the main body portion having the air inlet and at least one of the nozzles.

Optionally, the cross-sectional area of the nozzle gradually decreases from the inlet of the nozzle to the outlet of the nozzle in the airflow direction, and the ratio of the cross-sectional area C of the inlet of the nozzle to the cross-sectional area a of the outlet of the nozzle is less than or equal to 20.

Optionally, the number of the nozzles is multiple, and a wind blocking rib is arranged at an inlet of the nozzle close to the wind inlet in the airflow direction in the multiple nozzles.

Optionally, the nozzle comprises a plurality of nozzles, and the plurality of nozzles are arranged in sequence along the gas flow direction, and the cross-sectional area of the gas flow channel gradually decreases along the gas flow direction.

According to another embodiment of the invention, the clothes dryer is provided with a clothes drying cavity and an air inlet communicated with the clothes drying cavity, the nozzle is arranged at the air inlet, and a gap exists between the outlet of the nozzle and the air inlet.

Optionally, the cross-sectional area of the air inlet is larger than that of the outlet of the nozzle, and the ratio of the cross-sectional area B of the area of the air inlet excluding the nozzle to the cross-sectional area a of the outlet of the nozzle is 2-50.

Optionally, the outlet of the nozzle is located in the middle of the air inlet in the orthographic projection of the plane of the air inlet.

Optionally, the clothes dryer has an air outlet communicated with the clothes drying cavity, and the air duct assembly is adapted to be mounted on a housing assembly of the clothes dryer and defines a flow guide channel communicated with the air inlet and the air outlet with the housing assembly.

A clothes dryer according to an embodiment of a third aspect of the present invention includes: the shell assembly comprises a clothes drying cavity and an air inlet communicated with the clothes drying cavity; the air channel assembly is arranged on the shell assembly and comprises an airflow channel and a nozzle; the fan is arranged on the shell assembly and used for driving the airflow in the airflow channel to be sprayed out from the nozzle; and a gap is formed between the outlet of the nozzle and the air inlet.

According to the clothes dryer provided by the embodiment of the invention, the air channel assembly is arranged on the shell assembly, the nozzle of the air channel assembly is arranged at the air inlet, and a gap is formed between the outlet of the nozzle and the air inlet, so that better jet flow and drainage effects can be achieved, the clothes drying efficiency of the clothes dryer can be improved, the clothes in the clothes dryer can be blown by high-speed air flow, wrinkles can be prevented from being generated, part of wrinkles can be removed, and the clothes drying effect is improved.

Optionally, the housing assembly includes an air outlet, and the air outlet and the air inlet are communicated through a flow guide channel.

Optionally, the housing assembly comprises: a housing; the inner container is arranged in the shell and provided with the clothes drying cavity, and the air duct assembly is arranged between the shell and the inner container and between the shell and the inner container to define the drainage channel.

A clothes dryer according to an embodiment of a fourth aspect of the present invention includes: the shell assembly comprises a clothes drying cavity and an air inlet communicated with the clothes drying cavity; the air channel assembly is arranged on the shell assembly and comprises an airflow channel and a nozzle; the fan is arranged on the shell assembly and used for driving the airflow in the airflow channel to be sprayed out from the nozzle; the area of the outlet of the nozzle is smaller than that of the air inlet.

According to the clothes dryer provided by the embodiment of the invention, the air channel assembly is arranged on the shell assembly, the nozzle of the air channel assembly is arranged at the air inlet, and the outlet area of the nozzle is smaller than the area of the air inlet, so that better jet flow and drainage effects can be achieved, the clothes drying efficiency of the clothes dryer can be improved, the clothes in the clothes dryer can be blown by high-speed air flow, wrinkles can be prevented from being generated, part of wrinkles can be removed, and the clothes drying effect is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a dryer according to an embodiment of the present invention at one viewing angle;

FIG. 2 is an exploded view of a dryer according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a dryer according to an embodiment of the present invention at another viewing angle;

FIG. 4 is a schematic structural view of a duct assembly of a dryer according to an embodiment of the present invention;

FIG. 5 is a side view of a duct assembly of a dryer according to an embodiment of the present invention;

fig. 6 is a rear view of a dryer according to an embodiment of the present invention;

FIG. 7 is a sectional view taken along line I-I of FIG. 6;

FIG. 8 is an enlarged view of section II shown in FIG. 7;

FIG. 9 is an enlarged view of section III shown in FIG. 7;

fig. 10 is a simulation analysis diagram of a nozzle of a dryer according to an embodiment of the present invention.

Reference numerals:

the clothes dryer 100 is provided with a dryer,

the shell assembly 10, the shell 11, the side plate 111, the top plate 112, the bottom plate 113, the inner container 12, the air inlet 121, the air outlet 122, the clothes drying cavity 123, the frame 13, the hanging rod 14 and the door body 15,

the air-moving device (20) is provided with a blower,

an air duct assembly 30, an air flow channel 301, an air inlet 302, a nozzle 303, an inlet 3031, an outlet 3032, a wind shielding rib 3033, a drainage channel 304, a main body part 31, a baffle 311, a concave part 312, a branch part 32,

the module 40 is heated.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, 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", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A dryer 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 10.

As shown in fig. 1 to 10, a dryer 100 according to one embodiment of the present invention includes: a housing assembly 10, a fan 20 and an air duct assembly 30. The housing assembly 10 includes a drying chamber 123 and an intake vent 121 communicating with the drying chamber 123. The air duct assembly 30 is provided to the housing assembly 10 and the air duct assembly 30 includes an air flow passage 301 and a nozzle 303. The fan 20 is disposed on the housing assembly 10 for driving the air flow in the air flow channel 301 to be sprayed out from the nozzle 303. Further, the nozzle 303 is disposed at the air inlet 121 and sprays the air flow toward the clothes drying chamber 123, and at least a section of the cross-sectional area of the nozzle 303 is gradually reduced in the spraying direction of the air flow.

During operation, the nozzle 303 locally emits relatively high-speed jet air, so that a negative pressure area is formed in the area around the nozzle 303, and air flow around the air inlet 121 is driven to flow along the direction of jet flow to form drainage air, so that the air volume at the position of the air inlet 121 is increased.

According to the clothes dryer 100 of the embodiment of the invention, the air duct assembly 30 is arranged on the shell assembly 10, the nozzle 303 of the air duct assembly 30 is arranged at the air inlet 121, and at least one section of cross section area of the nozzle 303 is gradually reduced in the ejecting direction of the air flow, so that better jet flow and drainage effects can be achieved, the clothes drying efficiency of the clothes dryer 100 can be improved, the clothes in the clothes dryer 100 can be blown by the high-speed air flow, wrinkles can be prevented from being generated, and partial wrinkles can be removed, so that the clothes drying effect is improved.

Optionally, the nozzle 303 has an inlet 3031 and an outlet 3032, the inlet 3031 of the nozzle 303 is communicated with the airflow channel 301, and a gap exists between the outlet 3032 of the nozzle 303 and the inlet 121, so as to drive the airflow around the inlet 121 to flow in the direction of the jet flow, so as to form a negative pressure region in the gap region between the outlet 3032 of the nozzle 303 and the inlet 121.

Optionally, the nozzle 303 has an inlet 3031 and an outlet 3032, the inlet 3031 of the nozzle 303 is communicated with the airflow channel 301, and the area of the outlet 3032 of the nozzle 303 is smaller than that of the air inlet 121, so that better jet flow and drainage effects can be achieved.

The dryer 100 according to still another embodiment of the present invention includes: a housing assembly 10, an air duct assembly 30 and a fan 20.

Specifically, the housing assembly 10 includes a drying cavity 123 and an air inlet 121 communicating with the drying cavity 123, the air duct assembly 30 is disposed on the housing assembly 10, the air duct assembly 30 includes an air flow channel 301 and a nozzle 303, and the fan 20 is disposed on the housing assembly 10 for driving the air flow in the air flow channel 301 to be ejected from the nozzle 303. A gap exists between the outlet 3032 of the nozzle 303 and the intake vent 121.

According to the clothes dryer 100 of the embodiment of the invention, the air duct assembly 30 is arranged on the shell assembly 10, the nozzle 303 of the air duct assembly 30 is arranged at the air inlet 121, and a gap exists between the outlet 3032 of the nozzle 303 and the air inlet 121, so that good jet flow and drainage effects can be achieved, the clothes drying efficiency of the clothes dryer 100 can be improved, and the clothes in the clothes dryer 100 can be blown by high-speed air flow, wrinkles can be prevented from being generated, and partial wrinkles can be removed, so that the clothes drying effect is improved.

The dryer 100 according to another embodiment of the present invention includes: a housing assembly 10, an air duct assembly 30 and a fan 20.

Specifically, the housing assembly 10 includes a drying cavity 123 and an air inlet 121 communicating with the drying cavity 123, the air duct assembly 30 is disposed on the housing assembly 10, the air duct assembly 30 includes an air flow channel 301 and a nozzle 303, and the fan 20 is disposed on the housing assembly 10 and is configured to drive the air flow in the air flow channel 301 to be ejected from the nozzle 303; the area of the outlet 3032 of the nozzle 303 is smaller than the area of the intake vent 121.

According to the clothes dryer 100 of the embodiment of the invention, the air duct assembly 30 is arranged on the shell assembly 10, the nozzle 303 of the air duct assembly 30 is arranged at the air inlet 121, and the area of the outlet 3032 of the nozzle 303 is smaller than that of the air inlet 121, so that better jet flow and drainage effects can be achieved, the clothes drying efficiency of the clothes dryer 100 can be improved, and the clothes in the clothes dryer 100 can be blown by high-speed air flow, wrinkles can be prevented from being generated, and partial wrinkles can be removed, so that the clothes drying effect is improved.

Some embodiments of a dryer 100 according to embodiments of the present invention are described in detail below with reference to fig. 1 to 10.

According to one embodiment of the present invention, the housing assembly 10 includes an air outlet 122, the air outlet 122 and the air inlet 121 are communicated through the diversion channel 304, and both the air inlet 121 and the air outlet 122 are communicated with the clothes drying cavity 123.

During operation, nozzle 303 department jets out higher speed efflux wind locally, can form the negative pressure zone in nozzle 303 surrounding area like this, thereby it flows along fluidic direction to drive air current around the air intake 121, in order to form drainage wind, thereby the amount of wind of air intake 121 position has been increased, can also lead to the air current in the drainage channel 304 to be drained simultaneously, drainage channel 304 also forms the negative pressure zone, consequently, need outside supplementary aeration air current, some air current in the dry clothing chamber 123 flows into this drainage channel 304 through air outlet 122, realize the inside and outside circulation of air current, thereby guarantee the balance of atmospheric pressure.

In a preferred embodiment, the air outlet 122 is located below the air inlet 121, so as to guide the air circulation more effectively and increase the air volume.

In some examples, the air duct assembly 30 and the housing assembly 10 define a flow-directing passage 304 therebetween, and the air inlet 121 and the air outlet 122 are respectively in communication with the flow-directing passage 304.

As shown in fig. 2, 7-9, in some specific examples, the housing assembly 10 includes: shell 11 and inner bag 12, inner bag 12 locate in shell 11 and have dry clothing chamber 123, and wind channel assembly 30 locates between shell 11 and inner bag 12 and prescribes a limit to drainage channel 304 with inner bag 12, and the casing assembly 10 of dryer 100 simple structure, compactness, the equipment is easy to through setting up shell 11 and inner bag 12, can prescribe a limit to for wind channel assembly 30 and place the space, thereby improves space utilization.

According to one embodiment of the present invention, the duct assembly 30 further includes an air inlet 302, the air inlet 302 being in communication with the fan 20. When the fan 20 is operated, external air can be introduced into the air flow channel 301 to form a high-speed air flow, and then the air flow in the air flow channel 301 is driven to be ejected from the nozzle 303 to provide power for the air flow.

As shown in fig. 9, in some examples, a heating module 40 is disposed in the air flow channel 301, and can heat the air flow, so as to provide the heated air flow into the clothes drying cavity 123, thereby performing the functions of drying the clothes and removing wrinkles.

In some specific examples, the heating module 40 is located between the air inlet 302 and the nozzle 303 adjacent to the air inlet 302 in the air flow direction. For example, the heating module 40 is disposed in the air flow channel 301 and adjacent to the air inlet 302, so as to ensure that each nozzle 303 can eject hot air, thereby drying the clothes and removing wrinkles.

In some examples, the air duct assembly 30 further includes: the wrinkle removing effect can be further improved by a steam generator (not shown), whereby the high-temperature steam sprayed from the nozzle 303.

As shown in fig. 3-9, according to one embodiment of the present invention, the air duct assembly 30 includes: the main body part 31, the main body part 31 has at least one part of the air flow channel 301 defined therein, and the main body part 31 has the air inlet 302 and at least one nozzle 303, the main body part 31 and the housing assembly 10 define the diversion channel 304 or a part of the diversion channel 304, the structure is simple, and the assembly is convenient.

In some examples, a side of the body portion 31 facing the housing assembly 10 has a recess 312, the recess 312 and the housing assembly 10 defining at least a portion of the drainage channel 304. Specifically, the main body 31 has a baffle 311 extending along the circumferential direction thereof, and the baffle 311 is connected with the housing assembly 10 in a sealing manner, so that the main body 31 and the housing assembly 10 can define a relatively sealed drainage channel 304 to prevent air leakage.

According to a further embodiment of the present invention, the air duct assembly 30 further comprises: a branch part 32, the branch part 32 defining the remaining part of the air flow passage 301 therein, and the branch part 32 having at least one nozzle 303, the air flow being directed to different orientations of the drying cavity 123 by adjusting the position of the branch part 32.

Alternatively, the branch parts 32 include two branch parts 32, one ends of the two branch parts 32 are respectively connected with one end of the main body part 31, and each branch part 32 has a nozzle 303, and by adjusting the orientation of the branch part 32 and the position of the nozzle 303 on the branch part 32, the flow rate of the high-temperature air flow entering the drying cavity 123 can be adjusted, thereby improving the drying efficiency and the drying effect of the dryer 100.

As shown in fig. 7 to 9, in some examples, the main body 31 is provided at the rear of the drying chamber 123, and the branch 32 is provided at the top of the drying chamber 123, thereby forming a high-speed air flow at the rear and top of the drying chamber 123 to blow the laundry.

Further, a hanging rod 14 for hanging clothes is provided in the clothes drying cavity 123, and the nozzle 303 of the main body 31 and the nozzle 303 of the branch 32 are located at the front and rear sides of the hanging rod 14.

Therefore, a part of air flow can be led out from the air flow channel 301 of the main body part 31 and guided to the top and the front of the clothes drying cavity 123, so that the front and the back of the clothes can be blown with hot air by the jet air from back to front and the jet air from front to back in the clothes drying cavity 123, the clothes can be dried in a hanging state, the hot air at the front and the back of the clothes can blow the clothes to swing, the front and the back of the clothes can be blown with air, wrinkles are prevented from being generated, meanwhile, partial wrinkles can be removed, and the drying uniformity is improved.

As shown in fig. 8, in some examples, each nozzle 303 has an inlet 3031 and an outlet 3032, the cross-sectional area of the inlet 121 is larger than the cross-sectional area of the outlet 3032 of the nozzle 303, the outlet 3032 of the nozzle 303 is located in the middle of the inlet 121 in the orthographic projection of the plane of the inlet 121, and the dimension of the outlet 3032 of the nozzle 303 in the up-down direction is smaller than the dimension of the inlet 121 in the up-down direction.

Therefore, the nozzle 303 is arranged at the air inlet 121 to form a venturi effect with the air inlet 121, and when high-speed airflow is sprayed out of the nozzle 303, a negative pressure area is formed in the surrounding area of the nozzle 303, so that the surrounding airflow at the air inlet 121 is driven to flow along the direction of jet flow to form drainage air, the air quantity at the position of the air inlet 121 is increased, and a better jet flow and drainage effect is achieved.

According to the venturi effect principle, since the cross-sectional area B of the air inlet 121 excluding the area occupied by the nozzle 303 affects the wind speed of the drainage wind and indirectly affects the total wind volume of the jet wind, in order to achieve better jet and drainage effects, the ratio of the cross-sectional area B (B1+ B2) of the area occupied by the nozzle 303 excluding the area in the air inlet 121 to the cross-sectional area a of the outlet 3032 of the nozzle 303 is 2 to 50, for example, the B/a of the two can be 2, 20, 40 or 50, and the like, thereby achieving better jet and drainage effects.

Alternatively, the cross-sectional area of the nozzle 303 gradually decreases from the inlet 3031 to the outlet 3032 in the flow direction of the gas flow, and the ratio C/A of the cross-sectional area C of the inlet 3031 of the nozzle 303 to the cross-sectional area A of the outlet 3032 of the nozzle 303 is less than or equal to 20, so that a better jet effect can be achieved.

Preferably, the nozzle 303 includes a plurality of nozzles, and a wind shielding rib 3033 is provided at an inlet 3031 of the nozzle 303 near the air inlet 302 among the plurality of nozzles 303.

In some examples, the wind shielding rib 3033 is in arc transition connection with the inner wall surface of the nozzle 303, the wind shielding rib 3033 can play a role in shunting, when the airflow in the airflow channel 301 passes through the wind shielding rib 3033, a part of the airflow changes in direction and is emitted through the nozzle 303, the other part of the airflow continues to flow forwards, and the proportion of the airflow to be shunted can be adjusted by adjusting the height and the direction of the wind shielding rib 3033, so that the purpose of controlling the air volume of each nozzle 303 to be uniform is achieved.

In some examples, the air duct assembly 30 includes a plurality of nozzles 303, the plurality of nozzles 303 are sequentially arranged in a gas flow direction, and a cross-sectional area of the gas flow passage 301 is gradually reduced in the gas flow direction.

In the example shown in fig. 7, the gas flow passage 301 includes a longitudinal passage extending in the up-down direction and a lateral passage extending in the front-rear direction, the cross-sectional area of the longitudinal passage gradually decreases in the up-down direction from bottom to top, and the cross-sectional area of the lateral passage gradually decreases in the front-rear direction from rear to front, thereby better distributing the flow rate of the gas ejected from each nozzle 303.

Referring to fig. 1 to 10, the operation of the cabinet type dryer 100 according to an embodiment of the present invention will be described in detail.

As shown in fig. 1 and 2, a cabinet type dryer 100 according to an embodiment of the present invention includes: a housing assembly 10, a fan 20 and an air duct assembly 30. The shell assembly 10 comprises a shell 11, a frame 13, an inner container 12 and a door body 15, wherein the shell 11 comprises a top plate 112, a bottom plate 113 and three side plates 111, the top plate 112 is mounted at the top of the frame 13, the bottom plate 113 is mounted at the bottom of the frame 13, the three side plates 111 are respectively mounted at the left side, the right side and the rear side of the frame 13, and the shell 11 is provided with a chamber with an open front side. The inner container 12 is installed in the cavity of the housing 11 and has a clothes drying cavity 123 with an open front side, four air inlets 121 and an air outlet 122, the air outlet 122 is located below the four air inlets 121, and a hanging rod 14 for hanging clothes is arranged in the clothes drying cavity 123. The door body 15 is movably mounted to the frame 13 between an open position and a closed position to open and close the front-side opening of the drying chamber 123.

As shown in fig. 2 to 9, the air duct assembly 30 is disposed between the inner container 12 and the outer shell 11 and includes a main body portion 31 and two branch portions 32, the main body portion 31 extends along a vertical direction (a vertical direction as shown in fig. 2) and is disposed at a rear portion of the inner container 12, one side of the main body portion 31 facing the inner container 12 is provided with a concave portion 312, a drainage channel 304 is defined between the concave portion 312 of the main body portion 31 and the inner container 12, the drainage channel 304 is respectively communicated with the air inlet 121 and the air outlet 122 on the inner container 12, the main body portion 31 is provided with an air inlet 302 and two nozzles 303 spaced along a length direction thereof, the air inlet 302 is adapted to be communicated with the fan 20, each nozzle 303 faces the air inlet 121 on the rear portion of the inner container 12, one end of each of the two branch portions 32 is respectively communicated to an upper end of the main body portion.

As shown in fig. 7-9, each nozzle 303 has an inlet 3031 and an outlet 3032, the cross-sectional area of the nozzle 303 gradually decreases from the inlet 3031 of the nozzle 303 to the outlet 3032 of the nozzle 303 in the gas flow direction, and the ratio of the cross-sectional area of the inlet 3031 of the nozzle 303 to the cross-sectional area of the outlet 3032 of the nozzle 303 is 20 or less. The cross-sectional area of the air inlet 121 is larger than that of the outlet 3032 of the nozzle 303, the outlet 3032 of the nozzle 303 is positioned in the middle of the air inlet 121 in the orthographic projection of the plane of the air inlet 121, and the ratio of the cross-sectional area of the air inlet 121 except the nozzle 303 to the cross-sectional area of the outlet 3032 of the nozzle 303 is 2-50. Wherein, the rest nozzles 303 except the nozzle 303 farthest from the air inlet 302 are provided with wind shielding ribs 3033, and the wind shielding ribs 3033 extend towards the air flow channel 301 to realize the flow dividing effect.

The heating module 40 is disposed in the air flow channel 301 and adjacent to the air inlet 302 for heating with air flow, thereby providing heated air flow into the clothes drying cavity 123 for drying clothes and removing wrinkles.

As shown in fig. 10, simulation analysis is performed on the air duct assembly 30, and it is found that a relatively high-speed jet air is emitted locally at the nozzle 303, and the local air speed can be as high as 20-40 m/s, so that a negative pressure region is formed around the outlet 3032 of the nozzle 303, and thus the air flow around the air inlet 121 on the inner container 12 is driven to flow forward along the jet direction to form a flow guiding air, so that the air volume at the air inlet 121 is increased.

Meanwhile, because of the venturi effect, the airflow outside the airflow channel 301 and in the space inside the baffle 311 (i.e., the drainage channel 304) is drained, and the whole drainage channel 304 also becomes a negative pressure region, so that external supplementary airflow is needed, and part of the airflow in the clothes drying cavity 123 flows into the drainage channel 304 through the air outlet 122 on the inner container 12, so that the internal and external circulation of the airflow is realized, and the balance of the air pressure is ensured.

The clothing can be accomplished the stoving under the state of hanging, and wind channel assembly 30 can produce the high temperature efflux wind of higher velocity of flow, can blow the clothing swing, when preventing the fold production, can also get rid of partial fold, and the homoenergetic is hit the wind around the clothing simultaneously, has increased the homogeneity of stoving.

An air duct assembly 30 for a clothes dryer according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 10.

As shown in fig. 1 to 10, the air duct assembly 30 for a clothes dryer according to the embodiment of the present invention has an air flow passage 301, an air inlet 302, and at least one nozzle 303, wherein the air inlet 302 and the nozzle 303 are respectively communicated with the air flow passage 301, and at least a cross-sectional area of the nozzle 303 is gradually reduced in an ejection direction of an air flow.

According to the air duct assembly 30 for the clothes dryer of the embodiment of the invention, when the air duct assembly is applied to the clothes dryer 100, good jet flow and drainage effects can be achieved, the clothes drying efficiency of the clothes dryer 100 can be improved, and the air flow blows the clothes in the clothes dryer 100 at high speed, so that wrinkles can be prevented from being generated and partial wrinkles can be removed, and the clothes drying effect can be improved.

According to one embodiment of the present invention, the air duct assembly 30 includes: a main body portion 31, at least a portion of the air flow passage 301 being defined within the main body portion 31, and the main body portion 31 having an air inlet 302 and at least one nozzle 303.

According to a further embodiment of the present invention, the air duct assembly 30 further comprises: a branch part 32, the branch part 32 being connected with the main body part 31 and defining a remaining part of the air flow passage 301 therein, and the branch part 32 having at least one nozzle 303, the air flow being guided to different orientations of the drying cavity 123 by adjusting the position of the branch part 32.

As shown in fig. 7 to 9, in some examples, the main body 31 is provided at the rear of the drying cavity 123, a portion of the branch part 32 is provided at the top of the drying cavity 123 and one end of the branch part 31 is connected to the main body 31, thereby forming high-speed air flows at the rear and top of the drying cavity 123 to blow the laundry.

In some examples, the cross-sectional area of the nozzle 303 gradually decreases from the inlet 3031 of the nozzle 303 to the outlet 3032 of the nozzle 303 in the flow direction of the gas flow, and the ratio C/a of the cross-sectional area C of the inlet 3031 of the nozzle 303 to the cross-sectional area a of the outlet 3032 of the nozzle 303 is less than or equal to 20, so that a better jet effect can be achieved.

In some examples, the nozzle 303 includes a plurality of nozzles, and a wind shielding rib 3033 is provided in the plurality of nozzles 303 near an inlet 3031 of the nozzle 303 of the air inlet 302 in the airflow direction.

In some specific examples, the wind shielding rib 3033 is in arc transition connection with the inner wall surface of the nozzle 303, the wind shielding rib 3033 can play a role in shunting, when wind in the airflow channel 301 passes through the wind shielding rib 3033, a part of the wind changes in direction and is emitted through the nozzle 303, the other part of the wind continues to flow forwards, and the proportion of the shunted wind can be adjusted by adjusting the height of the wind shielding rib 3033, so that the purpose of controlling the wind volume of each nozzle 303 to be uniform is achieved.

In some examples, the nozzle 303 includes a plurality of nozzles 303, and the plurality of nozzles 303 are sequentially arranged in the gas flow direction, and the cross-sectional area of the gas flow channel 301 is gradually reduced in the gas flow direction, so as to better distribute the gas flow rate ejected from each nozzle.

According to a further embodiment of the present invention, the dryer 100 has a drying chamber 123 and an intake opening 121 communicating with the drying chamber 123, the nozzle 303 is provided at the intake opening 121, and a gap exists between an outlet 3032 of the nozzle 303 and the intake opening 121.

According to the venturi effect principle, since the cross-sectional area of the air inlet 121 excluding the nozzle 303 affects the wind speed of the drainage wind and indirectly affects the total wind volume of the jet wind, in order to achieve better jet and drainage effects, the ratio B/a of the cross-sectional area B of the area of the air inlet 121 excluding the nozzle 303 to the cross-sectional area a of the outlet 3032 of the nozzle 303 is 2-50, thereby achieving better jet and drainage effects.

In some examples, the outlet 3032 of the nozzle 303 is located in the middle of the intake vent 121 in an orthographic projection of the plane of the intake vent 121. That is to say, the nozzle 303 is arranged at the air inlet 121 to form a venturi effect with the air inlet 121, and when high-speed airflow is ejected from the nozzle 303, a negative pressure region is formed in the surrounding area of the nozzle 303, so that the surrounding airflow at the air inlet 121 is driven to flow along the direction of jet flow to form drainage air, and thus the air volume at the position of the air inlet 121 is increased, and a better jet flow and drainage effect is achieved.

In some examples, the dryer 100 has an air outlet 122 communicating with the drying cavity 123, and the air duct assembly 30 is adapted to be mounted to the housing assembly 10 of the dryer 100 and defines a flow guide channel 304 communicating with the air inlet 121 and the air outlet 122 with the housing assembly 10.

When the jet flow air conditioner works, high-speed jet flow air is emitted from the part of the nozzle 303, the local air speed can be as high as 20-40 m/s, and thus a negative pressure area is formed around the outlet 3032 of the nozzle 303, so that the air flow around the air inlet 121 on the inner container 12 is driven to flow forwards along the jet flow direction to form drainage air, and the air volume at the position of the air inlet 121 is increased. Meanwhile, because of the venturi effect, the airflow in the drainage channel 304 is drained, and the whole drainage channel 304 also becomes a negative pressure region, so that external supplementary airflow is needed, and part of the airflow in the clothes drying cavity 123 flows into the drainage channel 304 through the air outlet 122 on the inner container 12, so that internal and external circulation of the airflow is realized, and thus, the balance of the air pressure is ensured.

Other configurations and operations of the dryer 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 invention. In this specification, the schematic representations of the terms used above do not necessarily 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.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A clothes dryer (100), characterized by comprising:

the clothes drying device comprises a shell assembly (10), wherein the shell assembly (10) comprises a clothes drying cavity (123) and an air inlet (121) communicated with the clothes drying cavity (123);

the air duct assembly (30) is arranged on the shell assembly (10), and the air duct assembly (30) comprises an air flow channel (301) and a nozzle (303);

the fan (20) is arranged on the shell assembly (10) and used for driving the airflow in the airflow channel (301) to be sprayed out from the nozzle (303);

the nozzle (303) is arranged at the air inlet (121) and sprays airflow towards the clothes drying cavity (123), at least one section of cross-sectional area of the nozzle (303) is gradually reduced in the spraying direction of the airflow, and a gap exists between an outlet (3032) of the nozzle (303) and the air inlet (121).

2. The laundry dryer (100) of claim 1, characterized in that the area of the outlet (3032) of the nozzle (303) is smaller than the area of the air inlet (121).

3. The laundry dryer (100) of claim 1, characterized in that the housing assembly (10) comprises an air outlet (122), the air outlet (122) and the air inlet (121) being in communication through a drainage channel (304).

4. The clothes dryer (100) of claim 3 wherein said air duct assembly (30) and said housing assembly (10) define said drain channel (304).

5. The clothes dryer (100) of claim 1 wherein said air duct assembly (30) further includes an air inlet (302), said air inlet (302) being in communication with said fan (20).

6. The laundry dryer (100) of claim 5, characterized in that a heating module (40) is provided in the air flow channel (301), said heating module (40) being located between the air inlet (302) and a nozzle (303) adjacent to the air inlet (302) in the direction of air flow movement.

7. The laundry dryer (100) of claim 3, characterized in that said air duct assembly (30) comprises: a body portion (31), at least a portion of the airflow passage (301) being defined within the body portion (31), and the body portion (31) having at least one of the nozzles (303), the body portion (31) and the housing assembly (10) defining at least a portion of the drainage passage (304).

8. The laundry dryer (100) of claim 7, characterized in that a side of the main body portion (31) facing the housing assembly (10) has a recess (312), the recess (312) and the housing assembly (10) defining at least a portion of the drainage channel (304).

9. The laundry dryer (100) of claim 7, characterized in that the air duct assembly (30) further comprises: a branch portion (32), the branch portion (32) being connected to the main body portion (31) and defining a remaining portion of the airflow passage (301) therein, and the branch portion (32) having at least one of the nozzles (303).

10. The laundry dryer (100) of claim 9, characterized in that the main body portion (31) is provided at a rear portion of the drying chamber (123), the branch portion (32) is provided at a top portion of the drying chamber (123),

a hanging rod (14) for hanging clothes is arranged in the clothes drying cavity (123), and the nozzle (303) on the main body part (31) and the nozzle (303) on the branch part (32) are positioned on two sides of the hanging rod (14).

11. The laundry dryer (100) of claim 1, characterized in that the cross-sectional area of the air inlet (121) is larger than the cross-sectional area of the outlet (3032) of the nozzle (303), and the outlet (3032) of the nozzle (303) is located in the middle of the air inlet (121) in the orthographic projection of the plane in which the air inlet (121) is located.

12. The laundry dryer (100) of claim 1, characterized in that a ratio of a cross-sectional area B of the air intake (121) excluding an area occupied by the nozzle (303) to a cross-sectional area a of an outlet (3032) of the nozzle (303) is 2-50.

13. The laundry dryer (100) of claim 1, characterized in that the cross-sectional area of the nozzle (303) decreases gradually from the inlet (3031) of the nozzle (303) to the outlet (3032) of the nozzle (303) in the air flow direction, and the ratio of the cross-sectional area C of the inlet (3031) of the nozzle (303) to the cross-sectional area a of the outlet (3032) of the nozzle (303) is less than or equal to 20.

14. The clothes dryer (100) of any of claims 1-13 wherein said air duct assembly (30) includes a plurality of said nozzles (303), and wherein a wind blocking rib (3033) is provided in a plurality of said nozzles (303) adjacent to an inlet (3031) of the nozzle (303) of said fan (20) in an air flow direction.

15. The laundry dryer (100) of any one of claims 1-13, characterized in that the air duct assembly (30) comprises a plurality of said nozzles (303), said plurality of nozzles (303) being arranged one after the other in the direction of the flow of the air, the cross-sectional area of the air flow channel (301) being gradually smaller in the direction of the flow of the air.

16. Laundry dryer (100) according to claim 3 or 4, characterized in that said housing assembly (10) comprises:

a housing (11); and

the inner container (12) is arranged in the shell (11) and is provided with the clothes drying cavity (123), and the air duct assembly (30) is arranged between the shell (11) and the inner container (12) and defines the drainage channel (304) with the inner container (12).

17. An air duct assembly (30) for a clothes dryer is characterized in that the air duct assembly (30) is provided with an air flow channel (301), an air inlet (302) and at least one nozzle (303), the air inlet (302) and the nozzle (303) are respectively communicated with the air flow channel (301), at least one section of cross section area of the nozzle (303) is gradually reduced in the ejecting direction of air flow,

the clothes dryer (100) is provided with a clothes drying cavity (123) and an air inlet (121) for communicating the clothes drying cavity (123), the nozzle (303) is arranged at the air inlet (121), and a gap exists between an outlet (3032) of the nozzle (303) and the air inlet (121).

18. Air duct assembly (30) for a clothes dryer according to claim 17, characterized in that said air duct assembly (30) comprises: a main body portion (31), at least a portion of the air flow channel (301) being defined within the main body portion (31), and the main body portion (31) having the air inlet (302) and at least one of the nozzles (303).

19. The air duct assembly (30) for a clothes dryer according to claim 18, wherein said air duct assembly (30) further comprises: a branch portion (32), the branch portion (32) being connected to the main body portion (31) and defining a remaining portion of the airflow passage (301) therein, and the branch portion (32) having at least one of the nozzles (303).

20. The air duct assembly (30) for a dryer according to any of claims 17-19, wherein the cross-sectional area of the nozzle (303) decreases gradually from the inlet (3031) of the nozzle (303) to the outlet (3032) of the nozzle (303) in the air flow direction, and the ratio of the cross-sectional area C of the inlet (3031) of the nozzle (303) to the cross-sectional area a of the outlet (3032) of the nozzle (303) is less than or equal to 20.

21. The air duct assembly (30) for a clothes dryer according to any one of claims 17 to 19, wherein the nozzle (303) comprises a plurality of nozzles, and a wind blocking rib (3033) is provided in the plurality of nozzles (303) near an inlet (3031) of the nozzle (303) of the air inlet (302) in the air flow direction.

22. The air duct assembly (30) for a clothes dryer according to any one of claims 17-19, wherein the nozzle (303) comprises a plurality of nozzles, and the plurality of nozzles (303) are arranged in sequence along the air flow direction, and the cross-sectional area of the air flow channel (301) is gradually reduced along the air flow direction.

23. Air duct assembly (30) for a clothes dryer according to claim 17, characterized in that the cross-sectional area of the air inlet opening (121) is larger than the cross-sectional area of the outlet opening (3032) of the nozzle (303),

the ratio of the cross-sectional area B of the area of the air inlet (121) except the nozzle (303) to the cross-sectional area A of the outlet (3032) of the nozzle (303) is 2-50.

24. Air duct assembly (30) for a clothes dryer according to claim 17 or 23, characterized in that the outlet (3032) of the nozzle (303) is located in the middle of the air inlet (121) in an orthographic projection of the plane of the air inlet (121).

25. Air duct assembly (30) for a dryer according to claim 17 or 23, characterized in that the dryer (100) has an air outlet (122) communicating with the drying chamber (123),

the air duct assembly (30) is suitable for being mounted on a shell assembly (10) of the clothes dryer (100) and defines a drainage channel (304) communicated with the air inlet (121) and the air outlet (122) with the shell assembly (10).