CN106637872B - Clothes dryer - Google Patents

Clothes dryer Download PDF

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Publication number
CN106637872B
CN106637872B CN201610067234.7A CN201610067234A CN106637872B CN 106637872 B CN106637872 B CN 106637872B CN 201610067234 A CN201610067234 A CN 201610067234A CN 106637872 B CN106637872 B CN 106637872B
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China
Prior art keywords
fan
drying
volute
opening
motor
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CN201610067234.7A
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Chinese (zh)
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CN106637872A (en
Inventor
李怡锦
成荣锋
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Qingdao Jiaonan Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
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Qingdao Jiaonan Haier Washing Machine Co Ltd
Haier Smart Home Co Ltd
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Publication of CN106637872A publication Critical patent/CN106637872A/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28—Air properties
    • D06F2103/34—Humidity
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28—Air properties
    • D06F2103/36—Flow or velocity
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/44—Current or voltage
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/16—Air properties
    • D06F2105/24—Flow or velocity
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • D06F58/08—Driving arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements

Abstract

The invention provides a clothes dryer, which comprises a drying roller, a roller motor for driving the drying roller to rotate and a drying fan for providing drying air for the drying roller, wherein the drying fan comprises a volute, a fan arranged in the volute and a drying motor for driving the fan to rotate, the roller motor and the drying motor are the same motor, the motor is a forward and reverse rotation motor, the forward and reverse rotation of the drying roller and the forward and reverse rotation of the fan are driven, and the air volume provided by the fan under the two conditions of forward and reverse rotation is equivalent. The drying roller can rotate forward and backward to shake and disperse clothes in the drying roller more effectively, so that the drying efficiency is higher, and the drying is more uniform.

Description

Clothes dryer
Technical Field
The invention relates to a clothes dryer, and belongs to the field of clothes dryers.
Background
The general circulation mode of the dryer is as follows: the drying fan is driven by the motor to rotate, so that air in the clothes dryer flows up to form air in the air channel. Wind at normal temperature is heated to become dry hot wind, and then enters the drying roller to contact with damp clothes in the drum and take away moisture on the clothes until the clothes in the drum are dried, so that the effective circulation of the wind has great influence on the working efficiency of the clothes dryer, and the wind is formed by enabling the air to enter the wind path to start circulation after the fan 12 of the drying fan 1 rotates in the volute 11 to generate wind pressure.
Referring to fig. 1 and 2, the drying drum and the fan of the drying fan 1 of the conventional clothes dryer rotate in one direction, the direction of the effective airflow provided is a single direction, the shape of the fan blades of the drying fan 1 and the volute 11 are designed based on the involute principle, and the rotation direction of the fan 12 rotates towards the direction close to the volute tongue of the volute (the rotation direction of the fan is shown as counterclockwise rotation). Because the drying drum unidirectional rotation for the clothing intertwine in the drum, can't tremble the expansion completely, lead to drying efficiency lower, the degree of consistency of drying does not reach the ideal state, and the dry clothing is inhomogeneous.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a clothes dryer, wherein a drying roller and a drying fan of the clothes dryer can rotate forwards and backwards to improve the drying efficiency and the clothes drying uniformity.
In order to solve the technical problems, the invention adopts the technical scheme that:
the clothes dryer comprises a drying roller, a roller motor for driving the drying roller to rotate and a drying fan for providing drying air for the drying roller, wherein the drying fan comprises a volute, a fan arranged in the volute and a drying motor for driving the fan to rotate;
the volute of the drying fan comprises a first shell and a second shell, the second shell comprises a bottom plate and a side panel arranged on one side surface of the bottom plate, the side panel comprises a similar circular contour formed by connecting a plurality of sections of gradually-opened contours, an opening is arranged on the similar circular contour, two straight plates are respectively arranged outwards on two sides of the opening and are respectively tangent with the similar circular contours on two sides of the opening to form a U-shaped contour, and the two straight plates are communicated with the opening to form a volute air outlet; the fan is located within the quasi-circular profile.
Furthermore, the first shell and the second shell are buckled in the axial direction of the fan to form a volute, an air inlet in the axial direction of the fan is formed in the first shell, and an air outlet is formed in the radial direction of the fan in the volute.
Furthermore, the second shell of the drying fan volute comprises a bottom plate and a side panel arranged on one side face of the bottom plate, the side panel comprises a circular outline, an opening is formed in the circular outline, two straight plates are outwards arranged on two sides of the opening respectively and are tangent to the circular outlines on two sides of the opening to form a U-shaped outline, the two straight plates are communicated with the opening to form a volute air outlet, and the fan is located in the circular outline and is located at the center of the circular outline.
Furthermore, a U-shaped outline matched with the second shell is arranged on the first shell of the drying fan volute.
Furthermore, this clothes dryer is for the clothes dryer that has the condensation function, still includes condenser and condensation fan, and the condensation fan provides cooling cold wind for the condenser, and the condensation fan includes the spiral case, sets up fan and the drive fan pivoted condensation motor in the spiral case, and the condensation motor is same motor with cylinder motor, drying motor, and the amount of wind that the condensation fan just provided under the two kinds of circumstances of just reversing along with drying motor is just reversing.
Furthermore, the volute of the condensing fan comprises a first shell and a second shell, the two parts are buckled in the axial direction of the fan to form the volute, an air inlet in the axial direction of the fan is formed in the first shell, and an air outlet is formed in the volute in the radial direction of the fan.
Furthermore, the second shell of the condensing fan volute comprises a bottom plate and a side panel arranged on one side surface of the bottom plate, the side panel comprises a similar circular contour formed by connecting a plurality of sections of gradually-opened contours, an opening is arranged on the similar circular contour, two straight plates are outwards arranged on two sides of the opening respectively and are tangent with the similar circular contours on two sides of the opening to form a U-shaped contour, and the two straight plates are communicated with the opening to form a volute air outlet; the fan is located within the quasi-circular profile.
Furthermore, the second shell of the condensing fan volute comprises a bottom plate and a side panel arranged on one side of the bottom plate, the side panel comprises a circular outline, an opening is formed in the circular outline, two straight plates are outwards arranged at the opening and are tangent to the circular outlines on two sides of the opening to form a U-shaped outline, a volute air outlet is formed between the two straight plates, and the fan is located in the circular outline and located at the center of the circular outline.
Further, the first shell of the condensing fan volute is provided with a U-shaped profile matched with the second shell.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
The clothes dryer comprises a drying fan and a drying roller, wherein an air outlet of the drying fan is communicated with an air inlet of the drying roller through an air duct. The drying fan comprises a volute, a fan and a drying motor for driving the fan to rotate, the drying roller and the drying fan can rotate forwards and reversely and are driven by the same motor, and cost is saved. Because the drying drum can rotate positively and negatively, the clothes in the drying drum can be shaken effectively, the drying is more uniform, and the drying efficiency is higher.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view of a drying fan and a condensing fan installed in a clothes dryer in the prior art.
Fig. 2 is a schematic view illustrating an installation of a drying fan in a dryer according to the related art.
Fig. 3 is a schematic view of a prior art condenser fan installed in a dryer.
Fig. 4 is a schematic view of the installation of the drying fan in the dryer of the present invention.
Fig. 5 is an enlarged schematic view C of fig. 4.
Fig. 6 is a schematic view of the installation of the condensing fan in the dryer in the present invention.
Fig. 7 is an enlarged schematic view B of fig. 6.
Fig. 8 is a schematic view of the installation of the drying fans in the clothes dryers according to the fourth and sixth embodiments of the present invention.
Fig. 9 is an enlarged schematic view D of fig. 8.
1. Drying fan 11, volute 12, fan 2, condensing fan 21, volute 22, fan 3, drying fan 31, volute 32, fan 33, gap 34, gap 4, condensing fan 41, volute 42, fan 5, condenser.
Detailed Description
Because the drying roller of the existing clothes dryer can only rotate in one direction, the shaking degree of clothes in the roller is limited, and in order to ensure that the shaking degree of clothes is better, improve the drying efficiency and improve the drying uniformity, the fan of the clothes dryer, the drying roller and the drying fan 3 can rotate forward and backward, and the air quantity provided by the fan during forward and backward rotation is equal.
Example one
Some clothes dryers are direct-exhausting type clothes dryers, indoor air of a room where the clothes dryer is located is sucked into a drying fan 3 of the clothes dryer through an air inlet of the clothes dryer, heated through a heating device arranged in a drying air channel, enters a drying roller of the clothes dryer through the drying air channel, dries clothes in the drying roller, and then is discharged out of the clothes dryer through an air outlet of the clothes dryer, and clothes drying is achieved through the circulation of the actions. The clothes dryer can be the clothes dryer, the clothes dryer comprises a drying roller, a roller motor for driving the drying roller to rotate and a drying fan for providing drying air for the drying roller, the drying fan comprises a volute, a fan arranged in the volute and a drying motor for driving the fan to rotate, the roller motor and the drying motor are the same motor, the motor is a forward and reverse rotation motor, the drying roller is driven to rotate forward and reverse, the fan rotates forward and reverse, and the air volume provided by the fan under the two conditions of forward and reverse rotation is equivalent.
The volute of the drying fan of the clothes dryer comprises a first shell and a second shell, the two parts are buckled in the axial direction of the fan to form the volute, a bell mouth-shaped air inlet in the axial direction of the fan is formed in the first shell, and an air outlet is formed in the radial direction of the fan in the volute. The second shell of the drying fan volute comprises a bottom plate and a side panel arranged on one side face of the bottom plate, the side panel comprises a circular outline, an opening is formed in the circular outline, two straight plates are outwards arranged on two sides of the opening respectively and are tangent to the circular outlines on two sides of the opening to form a U-shaped outline, a volute air outlet is formed between the two straight plates, and the fan is located in the circular outline and located in the center of the circular outline. The first shell of the drying fan volute is provided with a U-shaped outline matched with the second shell.
Example two
Some clothes dryers are heat pump clothes dryers, including drying drum, drum motor driving the drying drum to rotate and drying fan providing drying air for the drying drum, the drying fan and the drying drum are communicated through a closed circulation air duct, and a heat exchanger is arranged in the circulation air duct between the drying fan air outlet and the drying drum air inlet. The drying fan comprises a volute, a fan arranged in the volute and a drying motor driving the fan to rotate, the roller motor and the drying motor are the same motor, the motor is a forward and reverse rotation motor, the drying roller is driven to rotate forward and reverse, the fan rotates forward and reverse, and the air volume provided by the fan under the two conditions of forward and reverse rotation is equivalent.
The volute of the drying fan of the clothes dryer comprises a first shell and a second shell, the two parts are buckled in the axial direction of the fan to form the volute, a bell mouth-shaped air inlet in the axial direction of the fan is formed in the first shell, and an air outlet is formed in the radial direction of the fan in the volute. The second shell of the drying fan volute comprises a bottom plate and a side panel arranged on one side face of the bottom plate, the side panel comprises a circular outline, an opening is formed in the circular outline, two straight plates are outwards arranged on two sides of the opening respectively and are tangent to the circular outlines on two sides of the opening to form a U-shaped outline, a volute air outlet is formed between the two straight plates, and the fan is located in the circular outline and located in the center of the circular outline. The first shell of the drying fan volute is provided with a U-shaped outline matched with the second shell.
EXAMPLE III
Some clothes dryers are clothes dryers with a condensation function, and a condenser and a condensation fan are further arranged in the clothes dryers.
The clothes dryer comprises a drying roller, a roller motor for driving the drying roller to rotate, a drying fan 3, a condenser 5 and a condensing fan 4, wherein an air outlet of the drying fan 3 is communicated with an air inlet of the drying roller through an air duct.
The drying roller, the condenser 5 and the drying fan 3 are sequentially communicated through an air channel to form a drying circulating air channel, and the condensing fan 4 provides cooling cold air for the condenser 5. The air of the drying circulating air channel is isolated from the cooling cold air passing through the condenser 5.
As shown in fig. 4 and 5, the drying blower 3 includes a volute 31, a fan 32, and a drying motor for driving the fan to rotate, and a central axis of the volute 31 is coaxial with a central axis of the fan 32. The volute 31 and the fan 32 are both symmetrical structures.
The volute 31 of the drying fan 3 includes a first housing and a second housing, the two housings are buckled in the axial direction of the fan to form a volute, a bell mouth-shaped air inlet is arranged on the first housing in the axial direction of the fan, and an air outlet is arranged on the volute in the radial direction of the fan. The bell mouth type air inlet is characterized in that the diameter of one end, facing the fan, of the air inlet is small, and the diameter of one end, facing away from the fan, of the air inlet is large and is similar to a bell mouth.
The second casing of the drying fan volute 31 comprises a bottom plate and a side panel arranged on one side of the bottom plate, the side panel comprises a circular outline, an opening is arranged on the circular outline, two straight plates are outwards arranged on two sides of the opening respectively, the two straight plates are tangent to the circular outline on two sides of the opening respectively to form a U-shaped outline, a volute air outlet is formed between the two straight plates, and the fan 32 is located in the U-shaped outline and located at the center of the circular outline.
The first shell of the drying fan volute is provided with a U-shaped outline matched with the second shell.
The fan 32 of the drying fan 3 has straight blades extending along the radial direction of the fan, and the blade surface of the blade is parallel to the central axis of the fan 32, i.e., the rotation axis.
Referring to fig. 6 and 7, the condensing fan 4 includes a volute 41, a fan 42, and a condensing motor for driving the fan to rotate, a central axis of the volute 41 is coaxial with a central axis of the fan 42, and both the volute 41 and the fan 42 are of a symmetrical structure.
The volute 41 of the condensing fan 4 includes a first casing and a second casing, the two parts are buckled together along the axial direction of the fan to form a volute, the first casing is provided with a bell mouth-shaped air inlet along the axial direction of the fan, and the volute is provided with an air outlet along the radial direction of the fan.
The second housing of the volute 41 of the condensing fan 4 comprises a bottom plate and a side panel arranged on one side of the bottom plate, the side panel comprises a circular outline, an opening is arranged on the circular outline, two straight plates are respectively arranged outwards on two sides of the opening, the two straight plates are respectively tangent with the circular outlines on two sides of the opening to form a U-shaped outline, the two straight plates are communicated with the opening to form a volute air outlet, and the fan is positioned in the circular outline and is positioned at the center of the circular outline.
The volute 41 of the condensing fan 4 has a U-shaped profile on the first housing which fits the second housing. The fan 42 of the condensing fan 4 has straight blades extending along the radial direction of the fan 42, and the blade surface is parallel to the central axis of the fan 42.
The condensing fan of the present invention is different from the condensing fan of the existing clothes dryer having a condenser and a condensing fan, and in the existing clothes dryer, as shown in fig. 3, the design of the shape of the fan blade of the condensing fan 2 and the volute 21 is based on the principle of involute, and the direction is consistent with the rotating direction of the fan 22.
And a heating device is arranged in a drying circulating air channel between the condenser and the drying fan.
In order to reduce the complexity of the clothes dryer equipment and reduce the energy consumption, the condensing motor, the roller motor and the drying motor are the same motor, so that the drying roller, the fan of the drying fan and the fan of the condensing fan can rotate together in the same direction.
The clothes dryer comprises a drying fan, a drying roller, a condenser and a condensing fan, wherein an air outlet of the drying fan is communicated with an air inlet of the drying roller through an air duct. The drying roller, the condenser and the drying fan are sequentially communicated through an air channel to form a drying circulating air channel, and the condensing fan provides cooling cold air for the condenser. The drying fan comprises a volute and a fan, a central shaft of the volute is coaxial with a central shaft of the fan, the condensing fan comprises a volute and a fan, the central shaft of the volute is coaxial with the central shaft of the fan, and the condensing motor, the roller motor and the drying motor are the same motor, so that the load degree of equipment is reduced, and the energy consumption is reduced. The drying roller, the fan of the drying fan and the fan of the condensing fan can rotate positively and negatively, and the drying roller can rotate positively and negatively, so that clothes in the drying roller can be shaken effectively, drying is more uniform, and drying efficiency is higher. The drying fan provides power for drying circulating air entering and exiting the drying roller, and the condensing fan provides cooling cold air for the condenser, so that the damp and hot drying circulating air coming out of the drying roller is cooled and dehumidified at the condenser. The shapes of the volute and the fan blades of the drying fan and the condensing fan are symmetrical, the drying fan can effectively provide power to circulate the gas in the drying roller through the drying circulating air channel when the drying roller rotates forwards and backwards, and the condensing fan can effectively provide power to enable the air with lower temperature outside the clothes dryer to flow to the condenser. The clothes dryer can not provide effective air quantity for two rotation directions due to the fact that the drying fan and the condensing fan in the existing clothes dryer are designed to rotate forwards and reversely in an involute mode.
Example four
The difference between this embodiment and the first, second or third embodiment is that:
as shown in fig. 8 and 9, the second casing of the volute 31 of the drying fan 3 includes a bottom plate and a side panel installed on one side of the bottom plate, the side panel includes a similar circular contour formed by connecting a plurality of sections of involute contours, an opening is formed on the similar circular contour, two straight plates are respectively arranged outwards on two sides of the opening, the two straight plates are respectively tangent to the similar circular contour on two sides of the opening to form a U-shaped contour, and the two straight plates are communicated with the opening to form a volute air outlet; the fan 32 is located within the quasi-circular profile, and the central axis of the fan 32 is located on the side of the quasi-circular profile center away from the air outlet. That is, the gap 33 between the volute 31 and the fan 32 gradually increases from the bottom of the U-shaped profile toward the air outlet, so that a better air pressure can be formed to improve the flow rate of the circulating air.
EXAMPLE five
The difference between this embodiment and the third embodiment is that:
the second shell of the volute 41 of the condensing fan 4 comprises a bottom plate and a side panel arranged on one side surface of the bottom plate, the side panel comprises a similar circular contour formed by connecting a plurality of sections of gradually opened contours, an opening is arranged on the similar circular contour, two straight plates are outwards arranged on two sides of the opening respectively and tangent to the similar circular contours on two sides of the opening to form a U-shaped contour, and the two straight plates are communicated with the opening to form an air outlet of the volute 41; the fan 42 is located within the quasi-circular profile and the central axis of the fan 42 is located on the side of the centre of the quasi-circular profile remote from the outlet. That is, the gap between the volute 41 and the fan 42 gradually increases from the bottom of the U-shaped profile to the air outlet, so that a better air pressure can be formed to improve the flow rate of the circulating air.
EXAMPLE six
The difference between this embodiment and the third embodiment is that:
as shown in fig. 8 and 9, the second casing of the volute 31 of the drying fan 3 includes a bottom plate and a side panel installed on one side of the bottom plate, the side panel includes a similar circular contour formed by connecting a plurality of sections of involute contours, an opening is formed on the similar circular contour, two straight plates are respectively arranged outwards on two sides of the opening, the two straight plates are respectively tangent to the similar circular contour on two sides of the opening to form a U-shaped contour, and the two straight plates are communicated with the opening to form a volute air outlet; the fan 32 is located within the quasi-circular profile, and the central axis of the fan 32 is located on the side of the quasi-circular profile center away from the air outlet. That is, the gap 33 between the volute 31 and the fan 32 gradually increases from the bottom of the U-shaped profile toward the air outlet, so that a better air pressure can be formed to improve the flow rate of the circulating air. The gap 33 is the smallest gap between the scroll casing 31 and the fan 32, and the gap 34 is the gap between the scroll casing 31 and the fan 32 adjacent to the air outlet, and the gap gradually increases from the gap 33 to the gap 34.
The second shell of the volute 41 of the condensing fan 4 comprises a bottom plate and a side panel arranged on one side surface of the bottom plate, the side panel comprises a similar circular contour formed by connecting a plurality of sections of gradually opened contours, an opening is arranged on the similar circular contour, two straight plates are outwards arranged on two sides of the opening respectively and tangent to the similar circular contours on two sides of the opening to form a U-shaped contour, and the two straight plates are communicated with the opening to form an air outlet of the volute 41; the fan 42 is located within the quasi-circular profile and the central axis of the fan 42 is located on the side of the centre of the quasi-circular profile remote from the outlet. That is, the gap between the volute 41 and the fan 42 gradually increases from the bottom of the U-shaped profile to the air outlet, so that a better air pressure can be formed to improve the flow rate of the circulating air.
The embodiments in the above embodiments can be further combined or replaced, and the embodiments are only used for describing the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various changes and modifications made to the technical solution of the present invention by those skilled in the art without departing from the design idea of the present invention belong to the protection scope of the present invention.

Claims (8)

1. The clothes dryer comprises a drying roller, a roller motor for driving the drying roller to rotate and a drying fan for providing drying air for the drying roller, wherein the drying fan comprises a volute, a fan arranged in the volute and a drying motor for driving the fan to rotate, the roller motor and the drying motor are the same motor,
the method is characterized in that: the motor is a positive and negative rotation motor and drives the drying roller to rotate positively and negatively and the fan to rotate positively and negatively, and the air volume provided by the fan under the two conditions of positive and negative rotation is equivalent;
the volute of the drying fan comprises a first shell and a second shell, the two parts are buckled in the axial direction of the fan to form the volute, an air inlet in the axial direction of the fan is formed in the first shell, an air outlet is formed in the radial direction of the fan in the volute, and the air inlet is a bell-mouth-shaped air inlet which is small in diameter and large in diameter and faces towards one end of the fan and deviates from the end of the fan;
the second shell comprises a bottom plate and a side panel arranged on one side surface of the bottom plate, the side panel comprises a similar circular contour formed by connecting a plurality of sections of gradually-opened contours, an opening is arranged on the similar circular contour, two straight plates are outwards arranged on two sides of the opening respectively and tangent to the similar circular contour on two sides of the opening to form a U-shaped contour, and the two straight plates are communicated with the opening to form a volute air outlet; the fan is located in the similar circular outline, the central shaft of the fan is located on one side, away from the air outlet, of the center of the similar circular outline, and the gap between the volute and the fan is gradually increased from the bottom of the U-shaped outline to the air outlet.
2. The clothes dryer of claim 1, wherein:
the second shell of the drying fan volute comprises a bottom plate and a side panel arranged on one side face of the bottom plate, the side panel comprises a circular outline, an opening is formed in the circular outline, two straight plates are outwards arranged on two sides of the opening respectively and are tangent to the circular outlines on the two sides of the opening to form a U-shaped outline, the two straight plates are communicated with the opening to form a volute air outlet, and the fan is located in the circular outline and located at the center of the circular outline.
3. The clothes dryer of claim 2, wherein: the first shell of the drying fan volute is provided with a U-shaped outline matched with the second shell.
4. The clothes dryer according to any one of claims 1 to 3, characterized in that: the clothes dryer is a clothes dryer with a condensing function, and also comprises a condenser and a condensing fan, wherein the condensing fan provides cooling cold air for the condenser,
the condensing fan comprises a volute, a fan arranged in the volute and a condensing motor for driving the fan to rotate, the condensing motor, the roller motor and the drying motor are the same motor,
the condensing fan rotates positively and negatively along with the drying motor, and the air volume provided under the two conditions of positive and negative rotation is equivalent.
5. The clothes dryer of claim 4, wherein:
the volute of the condensing fan comprises a first shell and a second shell, the two parts are buckled in the axial direction of the fan to form the volute, an air inlet in the axial direction of the fan is formed in the first shell, and an air outlet is formed in the radial direction of the fan in the volute.
6. The clothes dryer of claim 5, wherein:
the second shell of the condensing fan volute comprises a bottom plate and a side panel arranged on one side surface of the bottom plate, the side panel comprises a similar circular contour formed by connecting a plurality of sections of gradually opened contours, an opening is arranged on the similar circular contour, two straight plates are outwards arranged on two sides of the opening respectively and tangent to the similar circular contour on two sides of the opening to form a U-shaped contour, and the two straight plates are communicated with the opening to form a volute air outlet; the fan is located within the quasi-circular profile.
7. The clothes dryer of claim 5, wherein: the second shell of the condensing fan volute comprises a bottom plate and a side panel arranged on one side of the bottom plate, the side panel comprises a circular outline, an opening is formed in the circular outline, two straight plates are outwards arranged at the opening and are tangent to the circular outlines on two sides of the opening to form a U-shaped outline, a volute air outlet is formed between the two straight plates, and the fan is located in the circular outline and located at the center of the circular outline.
8. The clothes dryer according to claim 6 or 7, characterized in that: the first shell of the condensing fan volute is provided with a U-shaped profile matched with the second shell.
CN201610067234.7A 2015-10-28 2016-01-29 Clothes dryer Active CN106637872B (en)

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CN106637872A (en) 2017-05-10
US20190203406A1 (en) 2019-07-04
EP3369858B1 (en) 2022-03-02
JP2018531754A (en) 2018-11-01
EP3369858A1 (en) 2018-09-05
KR20180074764A (en) 2018-07-03
EP3369858A4 (en) 2018-10-17

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