CN111041796A

CN111041796A - Drying air duct noise reduction structure, heat pump washing and drying integrated machine and dryer

Info

Publication number: CN111041796A
Application number: CN201911396125.XA
Authority: CN
Inventors: 袁阿辉; 周鑫林; 陈坦; 刘剑; 熊瑞
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-04-21

Abstract

The invention relates to a noise reduction structure of a drying air duct, a heat pump washing and drying integrated machine and a dryer; the noise reduction structure comprises a noise reduction structure, a drying box body and an air duct; a drying cavity is formed in the drying box body, and the silencing structure is arranged at the front end of the drying box body and is positioned at an air inlet of the drying cavity; the silencing structure reduces the wind noise of the gas flowing through the silencing structure and entering the drying cavity; the air duct is arranged at the air outlet of the drying box body; the noise reduction structure of the drying air duct provided by the invention can effectively reduce the wind noise of the heat pump washing and drying integrated machine or the dryer during drying or dewatering, reduce the sound power of the whole machine, improve the user experience and enable the product to have better competitiveness.

Description

Drying air duct noise reduction structure, heat pump washing and drying integrated machine and dryer

Technical Field

The invention relates to the technical field of noise reduction of an air duct of a washing and drying integrated machine, in particular to a noise reduction structure of a drying air duct, a heat pump washing and drying integrated machine and a dryer.

Background

The existing heat pump washing and drying integrated machine comprises a washing machine roller, a fan and a drying box body module; when the heat pump washing and drying integrated machine is used for drying, the fan is started firstly, and air generated by starting the fan is blown into the roller through the air duct; the air in the roller is discharged into an assembly box for containing the compressor through an air outlet of the roller, and is heated by the compressor to generate hot air; the hot air returns to the roller through the fan and the air duct to dry the clothes; in the whole process, the fan is started to operate to generate noise, the wind enters the roller from the wind channel to generate noise, the wind enters the drying box body from the roller to generate wind noise, and the wind can generate air noise in the assembly box; therefore, in order to improve user experience, the technical problem of urgently overcoming the wind noise of the heat pump washing and drying integrated machine is also solved.

In the prior art, most of the existing schemes are researched aiming at inlets and outlets of a fan, an air duct and an air duct, but the noise is also generated when the air in a washing machine or a clothes dryer enters a drying box body, and the research is not found yet; for example: chinese patent No. CN207892898U discloses a low-noise fan, which discloses a scheme that a sound-absorbing cotton structure is additionally arranged at an air inlet of the fan, so that the low-noise fan can absorb the gas sound at the air inlet of the fan; can not be directly applied to the heat pump washing and drying integrated machine and the dryer.

Disclosure of Invention

The invention aims to solve the problem of high wind noise of the heat pump washing and drying integrated machine and the dryer.

The invention mainly aims to provide a noise reduction structure of a drying air duct, which specifically comprises the following scheme:

a noise reduction structure of a drying air duct comprises a noise reduction structure, a drying box body and an air duct; a drying cavity is formed in the drying box body, and the silencing structure is arranged at the front end of the drying box body and is positioned at an air inlet of the drying cavity; the silencing structure reduces the wind noise of the gas flowing through the silencing structure and entering the drying cavity; the wind channel sets up in the air outlet department of stoving box body.

Furthermore, the noise reduction structure also comprises a fan, and the fan is arranged at the rear end of the drying box body and is positioned in the drying cavity; the air inlet of the fan is provided with a noise reduction plate which is transversely arranged in the drying cavity, so that the wind noise of the gas flowing through the noise reduction plate and entering the fan is reduced; one end of the air duct is connected with an air outlet of the fan.

Further, the silencing structure comprises a shell structure and a plurality of silencing boxes; a silencing cavity is formed in the shell structure; the upper end surface and the lower end surface of the silencing box are respectively sealing surfaces, and a plurality of silencing holes are formed in the side surface of the silencing box; a plurality of silencing boxes are arranged in the silencing cavity side by side along the vertical direction, and dislocation intervals are formed at the air inlet and the air outlet along the vertical direction between the adjacent silencing boxes, so that silencing holes in the dislocation intervals of the air inlet can be made to enter the silencing boxes and flow out of the silencing boxes through the silencing holes of the air outlet.

Furthermore, the front end of the silencing box is fixedly arranged at the air inlet of the silencing cavity through a fixing plate; the rear end of the silencing box is fixedly arranged at the air outlet of the silencing cavity through a fixing plate; one end of the shell structure is fixedly connected with the drying box body through a bolt, and the other end of the shell structure can be connected with a rear air duct of the washing and drying integrated machine or the drying machine through a corrugated hose.

Further, the noise reduction plate is a perforated plate, and the perforated plate comprises a first perforated plate and a second perforated plate; the first perforated plate and the second perforated plate are arranged in the drying cavity side by side in a direction perpendicular to the flowing direction of the air and are positioned at an air inlet of the fan.

Furthermore, the first perforated plate and the second perforated plate are clamped in a U-shaped groove in the inner wall of the drying box body; the first perforated plate and the second perforated plate reduce wind noise of the gas through resonance sound absorption.

Furthermore, a plurality of through holes are arranged on the perforated plate, and the diameter of each through hole is smaller than 1 mm; and/or the perforation rate is less than 5% of the total perforated plate.

Furthermore, a heating assembly is arranged in the drying cavity, and the other end of the air channel is communicated with a roller of the washing and drying integrated machine or the dryer; the air enters the drying cavity through the silencing structure to be heated, and enters the air channel through the fan, so that the air enters the roller to be dried.

The invention also aims to provide a heat pump washing and drying integrated machine, which specifically comprises the following scheme:

the heat pump washing and drying integrated machine comprises a drying air duct noise reduction structure, wherein the drying air duct noise reduction structure is the above drying air duct noise reduction structure.

Another object of the present invention is to provide a dryer, which comprises the following steps:

the utility model provides a dryer, falls the structure of making an uproar including the stoving wind channel, the structure of making an uproar falls in the stoving wind channel be the aforesaid fall the structure of making an uproar in the stoving wind channel.

Aiming at the noise at the positions of the air inlet of the air duct and the fan behind the existing heat pump washing and drying integrated machine or the dryer, the invention provides the noise reduction structure of the drying air duct, which can effectively reduce the wind noise of the heat pump washing and drying integrated machine or the dryer during drying or dehydration, reduce the sound power of the whole machine, improve the user experience and enable the product to have better competitiveness.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a front view of a noise reduction structure of a drying duct provided in embodiment 1 of the present invention;

fig. 2 is a top view of a noise reduction structure of a drying duct provided in embodiment 1 of the present invention;

fig. 3 is a partial cross-sectional view of a noise reduction structure of a drying duct provided in embodiment 1 of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a partial cross-sectional view of a noise reduction structure of a drying duct provided in embodiment 1 of the present invention;

fig. 6 is a front view of a noise cancellation structure provided in embodiment 1 of the present invention;

fig. 7 is a bottom view of a noise-deadening structure provided in embodiment 1 of the present invention;

fig. 8 is a sectional view of a noise suppressing structure provided in embodiment 1 of the present invention;

fig. 9 is a schematic structural view of a sound-deadening box provided in embodiment 1 of the present invention.

In the figure: 1. a sound deadening structure; 11. screw holes; 12. a silencing box; 121. a silencing hole; 122. a lower end face; 13. an air inlet; 14. an air outlet; 15. a housing structure; 16. a fixing plate; 17. a fixing plate; 2. drying the box body; 3. a fan; 4. an air duct; 5. a first perforated plate; 6. a second perforated plate.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or quantity or location.

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.

Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

Example 1

As shown in fig. 1 to 9, the present invention provides a noise reduction structure of a drying air duct, which can be applied to an existing heat pump washing and drying integrated machine or dryer, for reducing noise in a drying box body or an air duct; the noise reduction structure specifically comprises a noise reduction structure 1, a drying box body 2 and an air duct 4; a drying cavity is formed in the drying box body 2, and a heating assembly is arranged in the drying cavity and used for providing heat exchange energy for the drying cavity so as to heat gas flowing through the drying cavity; further, the air duct 4 is arranged at the air outlet of the drying box body 2, one end of the air duct 4 is communicated with the drying cavity, and the other end of the air duct 4 can be communicated with the roller; furthermore, the silencing structure 1 is arranged at the front end of the drying box body 2 and is positioned at an air inlet of the drying cavity, so that the wind noise of the gas flowing through the silencing structure 1 and entering the drying cavity can be effectively reduced; in the above scheme, through install amortization structure additional in the air intake department of stoving box body to effectively reduce the noise in the stoving cavity, and then reduce the noise of cylinder air outlet department.

Preferably, as shown in fig. 1 to 9, the noise reduction structure further includes a fan 3, and the fan 3 is disposed at the rear end of the drying box body 2 and is located in the drying cavity; the fan 3 is mainly used for improving the pressure difference in the drying cavity, so that the gas in the drying cavity can enter the air channel 4 through the rotation of the fan 3; further, a noise reduction plate is arranged at the air inlet of the fan 3, and the noise reduction plate is arranged in the drying cavity along a transverse direction (the transverse direction can be understood as perpendicular to the flowing direction of the air in the drying cavity), so that the wind noise of the air flowing through the noise reduction plate and entering the fan 3 is reduced, and the flowing direction of the air is shown by an arrow p in fig. 1; one end of the air duct 4 is connected with an air outlet of the fan 3; in the above scheme, the noise reduction plate is added at the air inlet of the fan 3 to reduce the wind noise entering the air duct effectively.

In the scheme, the noise reduction structure is designed at the joint of the rear air duct of the heat pump washing and drying integrated machine or the dryer, so that the wind noise in the rear air duct is reduced when the conventional heat pump washing and drying integrated machine or dryer dehydrates at a high speed and the wind noise in the drying box body is transmitted, the wind noise can be effectively reduced, and the product experience is improved; in addition, according to the scheme provided by the invention, the noise at the air inlet of the fan is reduced by adding the noise reduction plate at the air inlet of the fan.

Preferably, as shown in fig. 1 to 9, the muffling structure adopts a honeycomb type multi-channel muffling cavity; specifically, the sound-deadening structure 1 includes a case structure 15 and a plurality of sound-deadening boxes 12; wherein, a silencing cavity is formed in the shell structure 15 and is used for accommodating the silencing box 12; specifically, as shown in fig. 9, the upper end surface and the lower end surface 122 of the silencing box 12 are sealing surfaces, and a plurality of silencing holes 121 are formed in the side surfaces around the silencing box 12; further, as shown in fig. 8, a plurality of silencing boxes 12 are arranged side by side in the silencing cavity along the vertical direction (the vertical direction can be understood as the direction of gas entering the silencing cavity), and a staggered interval is formed between adjacent silencing boxes 12 along the vertical direction at both the gas inlet 13 and the gas outlet 14, and the staggered interval enables gas to enter the silencing cavity through the silencing holes 121 on the surface of the staggered interval of the silencing boxes 12 and enter the adjacent silencing boxes 12 along both sides in the silencing boxes 12 when the gas enters the silencing cavity through the gas inlet 13; at the same time, the offset distance causes the air to flow out of the muffling opening 121 on the surface of the offset distance of the muffling box 12 at the air outlet 14 after the air is offset by the mutual impact of the muffling boxes 12.

In the scheme, the silencing device is provided with the multiple silencing boxes, the silencing boxes are arranged in the silencing cavity at intervals, the front and the back of each silencing box are sealed, and gas and sound waves are transmitted through the silencing holes in the side edges of the silencing boxes, so that the gas simultaneously enters the multiple silencing boxes, and the gas is impacted and counteracted with each other to achieve the silencing effect; the noise elimination structure is used for the rear air duct part of the heat pump washing and drying integrated machine or the dryer, and can solve the problem that gas in the roller directly and quickly enters the compressor placing box through the corrugated pipe.

Preferably, as shown in fig. 1 to 9, the front end of the silencing box 12 is fixedly arranged at the air inlet 13 of the silencing chamber through a fixing plate 16, and the rear end of the silencing box 12 is fixedly arranged at the air outlet 14 of the silencing chamber through a fixing plate 17; the outer side of the port of the shell structure 15 is provided with a screw hole 11, so that one end of the shell structure 15 can be fixedly connected with the drying box body 2 through a bolt; the other end of the shell structure 15 can be connected with a rear air duct of the washing and drying integrated machine or the dryer through a corrugated hose; further, the silencing box 12 is a hollow cavity structure with two closed ends, the periphery of the silencing box is a cuboid structure with small holes, two ends of the silencing box 12 are respectively fixed on the

fixing plates

16 and 17, the

fixing plates

16 and 17 are fixed in the silencing cavity, air in the rear air duct enters the silencing box 12 from the small holes on the peripheral surface of the silencing box 12 at the air inlet end 13, the purpose of noise reduction is achieved through gas shunting and mutual impact, and the schematic gas flow diagram is shown as arrows in fig. 8.

Preferably, as shown in fig. 1 to 9, the noise reduction plate is a perforated plate comprising a first perforated plate 5 and a second perforated plate 6; specifically, the first perforated plate 5 and the second perforated plate 6 are perpendicular to the flowing direction of the gas, arranged in the drying cavity side by side and positioned at the air inlet of the fan 3; specifically, since the air inlet of the fan 3 cannot be completely blocked, otherwise the fan will be burnt; therefore, in order to reduce the noise at the air inlet, the invention adopts the double-layer micro-perforated plate for silencing.

Preferably, as shown in fig. 1 to 9, the first perforated plate 5 and the second perforated plate 6 are clamped in a U-shaped groove formed in the inner wall of the drying case 2, so that the first perforated plate 5 and the second perforated plate 6 can reduce wind noise of gas by resonance sound absorption, and are directionally installed and removed.

Preferably, as shown in fig. 1 to 9, the perforated plate is provided with a plurality of perforations, and the diameter of each perforation is less than 1 mm; further, the perforation rate is less than 5% of the entire perforated plate, i.e., the perforation coverage over the entire perforated plate is less than 5%, which is designed to optimize the noise reduction efficiency of the perforated plate.

Preferably, as shown in fig. 1 to 9, a heating assembly is disposed in the drying chamber, the heating assembly may include a heating system, the heating system includes a compressor, an evaporator and a condenser, and a specific heating process of the heating system may be understood as an existing air conditioning heating system; further, the other end of the air duct 4 is communicated with a roller of the washing and drying integrated machine or the dryer, so that hot air in the air duct 4 can enter the roller for drying; in the scheme, gas enters the drying cavity through the silencing structure 1 to be heated, and enters the air channel 4 through the fan 3, so that the gas enters the roller to be dried, and the drying purpose is achieved; because the fan is started, noise and gas sound emitted by the fan can be transmitted out from the air inlet of the fan 3; in the scheme provided by the invention, two perforated plates are added at the air inlet of the fan 3, the perforated plates reduce the transmission of sound energy through resonance sound absorption, and a first perforated plate 5 and a second perforated plate 6 are clamped in a U-shaped groove of a drying box body; through solving current cylinder air outlet, stoving box body, the big problem of fan air intake noise, reduction complete machine wind that can be very big is made an uproar, promotes the product quality and experiences.

Example 2

Correspondingly, in combination with the scheme, the invention also provides a heat pump washing and drying integrated machine which comprises a drying air duct noise reduction structure, wherein the drying air duct noise reduction structure is the drying air duct noise reduction structure; by adopting the noise reduction structure of the drying air duct, the noise of the heat pump washing and drying integrated machine is lower, and the experience of the heat pump washing and drying integrated machine can be effectively improved.

Example 3

Correspondingly, in combination with the scheme, the invention also provides a dryer, which comprises a drying air duct noise reduction structure, wherein the drying air duct noise reduction structure is the drying air duct noise reduction structure; by adopting the noise reduction structure of the drying air channel, the noise of the dryer is smaller, and the experience of the dryer can be effectively improved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A noise reduction structure of a drying air duct is characterized by comprising a noise reduction structure (1), a drying box body (2) and an air duct (4); a drying cavity is formed in the drying box body (2), and the silencing structure (1) is arranged at the front end of the drying box body (2) and is positioned at an air inlet of the drying cavity; the silencing structure (1) reduces the wind noise of the gas flowing through the silencing structure (1) and entering the drying cavity; the air duct (4) is arranged at the air outlet of the drying box body (2).

2. The noise reduction structure of the drying air duct according to claim 1, characterized in that the noise reduction structure further comprises a fan (3), and the fan (3) is arranged at the rear end of the drying box body (2) and is positioned in the drying cavity; a noise reduction plate is arranged at an air inlet of the fan (3) and is transversely arranged in the drying cavity, so that the wind noise of the gas flowing through the noise reduction plate and entering the fan (3) is reduced; one end of the air duct (4) is connected with an air outlet of the fan (3).

3. A drying air duct noise reduction structure according to claim 1 or 2, characterized in that the noise reduction structure (1) comprises a casing structure (15) and a plurality of noise reduction boxes (12); a silencing cavity is formed in the shell structure (15); the upper end surface and the lower end surface of the silencing box (12) are respectively sealing surfaces, and a plurality of silencing holes are formed in the side surface of the silencing box (12); the plurality of silencing boxes (12) are arranged in the silencing cavity side by side in the vertical direction, and staggered intervals are formed between every two adjacent silencing boxes (12) in the vertical direction at the air inlet (13) and the air outlet (14), so that air can enter the silencing boxes (12) through silencing holes in the staggered intervals at the air inlet (13) and can flow out of the silencing boxes (12) through silencing holes in the air outlet (14).

4. The noise reduction structure of the drying air duct according to claim 3, wherein the front end of the silencing box (12) is fixedly arranged at the air inlet (13) of the silencing cavity through a fixing plate (16); the rear end of the silencing box (12) is fixedly arranged at an air outlet (14) of the silencing cavity through a fixing plate (17); one end of the shell structure (15) is fixedly connected with the drying box body (2) through a bolt, and the other end of the shell structure (15) can be connected with a rear air duct of the washing and drying integrated machine or the drying machine through a corrugated hose.

5. The drying duct noise reduction structure according to claim 2, wherein the noise reduction plate is a perforated plate comprising a first perforated plate (5) and a second perforated plate (6); first perforated plate (5) with the gaseous flow direction of second perforated plate (6) perpendicular to sets up side by side in the stoving cavity, and be located the air intake department of fan (3).

6. The noise reduction structure of the drying air duct according to claim 5, characterized in that the first perforated plate (5) and the second perforated plate (6) are clamped in a U-shaped groove on the inner wall of the drying box body (2); the first perforated plate (5) and the second perforated plate (6) reduce wind noise of the gas through resonance sound absorption.

7. The noise reduction structure of the drying duct according to claim 5 or 6, wherein the perforated plate is provided with a plurality of perforations, and the diameter of each perforation is less than 1 mm; and/or the perforation rate is less than 5% of the total perforated plate.

8. The noise reduction structure of the drying air duct according to claim 2 or 5, wherein a heating component is arranged in the drying cavity, and the other end of the air duct (4) is communicated with a roller of the washing and drying integrated machine or the dryer; the gas enters the drying cavity through the silencing structure (1) to be heated, and enters the air channel (4) through the fan (3) to enter the roller to be dried.

9. A heat pump washing and drying integrated machine comprises a drying air duct noise reduction structure, and is characterized in that the drying air duct noise reduction structure is the drying air duct noise reduction structure of any one of claims 1 to 8.

10. A dryer comprising a noise reduction structure of a drying duct, wherein the noise reduction structure of the drying duct is the noise reduction structure of the drying duct according to any one of claims 1 to 8.