CN114027763A - Drying assembly and dish washing machine - Google Patents
Drying assembly and dish washing machine Download PDFInfo
- Publication number
- CN114027763A CN114027763A CN202111390794.3A CN202111390794A CN114027763A CN 114027763 A CN114027763 A CN 114027763A CN 202111390794 A CN202111390794 A CN 202111390794A CN 114027763 A CN114027763 A CN 114027763A
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- CN
- China
- Prior art keywords
- airflow
- included angle
- fan blade
- blades
- drying assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001035 drying Methods 0.000 title claims abstract description 40
- 238000004851 dishwashing Methods 0.000 title abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000007605 air drying Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/48—Drying arrangements
- A47L15/486—Blower arrangements
Abstract
The invention discloses a drying component and a dish washing machine, wherein the drying component comprises an air duct, a rotatable turbulence fan blade is arranged at an air outlet of the air duct, and an air flow included angle is formed between the turbulence fan blade and the air flow direction; the airflow angle is switched between an attachment included angle and a separation included angle along with the rotation of the turbulence fan blades; the included angle of the airflow is an attachment included angle, so that the airflow forms an airflow boundary layer on the turbulence fan blade through viscosity; the included angle of the airflow is a separation included angle, so that the boundary layer of the airflow overcomes the viscosity to separate from the turbulent flow fan blade, and a body-separating vortex discharged from the air outlet is formed. The drying assembly provided by the invention utilizes the turbulence fan blades to realize that a large amount of drying airflow swirls to accelerate drying under the condition of not greatly reducing the airflow pressure.
Description
Technical Field
The invention belongs to the field of drying, and particularly relates to a drying assembly and a dish washing machine.
Background
The dish washer is used to automatically clean tableware such as dish, chopsticks, dish, knife and fork. With the automation of housework, dishwashers are increasingly popular for domestic use.
In order to realize higher-level drying of the existing dish washing machine, an air inlet fan is usually designed outside an inner container for drying. The fan passes through the heating body to generate hot air, so that the washed tableware is dried.
But dish washer inner bag cross-section is square, and fan air outlet is little and only one design usually on the inner bag lateral wall, has great cover dead angle, and is far away from the fan and by the tableware drying effect of the multiple hindrance of other tableware relatively poor, influences the save of tableware, breeds the bacterium easily. And because the dish washer uses hot-blast drying, the hot-blast air that blows out is mostly steady air current, and the tableware temperature that is close to the air outlet is higher, and easy department accelerates the tableware ageing.
Disclosure of Invention
The invention provides a drying component and a dish washing machine, which are used for solving the technical problem of uneven drying in the background technology.
In order to achieve the purpose, the specific technical scheme of the drying component and the dish washing machine is as follows:
a drying assembly comprises an air duct, wherein a rotatable turbulence fan blade is arranged at an air outlet of the air duct, and an air flow included angle is formed between the turbulence fan blade and the air flow direction; the airflow angle is switched between an attachment included angle and a separation included angle along with the rotation of the turbulence fan blades; the included angle of the airflow is an attachment included angle, so that the airflow passes through the adhesion on the turbulence fan blade to form an airflow boundary layer; the included angle of the airflow is a separation included angle, so that the boundary layer of the airflow overcomes the viscosity to separate from the turbulent flow fan blade, and a body-separating vortex discharged from the air outlet is formed.
Furthermore, the turbulence fan blades are arranged along the width direction of the air duct.
Furthermore, the centers of two ends of the turbulence fan blade are provided with rotating shafts which are rotatably connected to the side wall of the air duct.
Further, the rotating shaft and the airflow direction are vertically arranged.
Furthermore, the turbulent fan blade comprises at least two blades arranged on the rotating shaft along the radial direction.
Further, the width of the blade decreases away from the axis of rotation to form a tip.
Furthermore, a flow guide block is arranged on one side, close to the upstream of the air duct, of the turbulence fan blade, and extends from one side of the axis of the turbulence fan blade to the other side of the axis of the turbulence fan blade, so that air flow pressure difference is generated on two sides of the axis of the turbulence fan blade, and the turbulence fan blade rotates.
Furthermore, the flow guide block is positioned at the edge of the air duct.
Furthermore, the surface of the flow guide block forms an inclined flow guide surface, and the flow guide surface is gradually far away from the inner wall of the air duct along with the approach of the turbulence fan blade.
A dishwasher, comprising the drying component.
The drying component and the dish washing machine have the following advantages that:
1. by utilizing the viscosity of airflow and the rotation of the turbulence fan blades, an airflow boundary layer is formed when the airflow viscosity is enough to be attached to the surfaces of the turbulence fan blades; when the viscosity of the airflow is not enough to attach to the surface of the turbulence fan blade, the airflow boundary layer is separated from the turbulence fan blade to form a body-removing vortex; under the condition of not greatly reducing the air flow pressure, a large amount of vortex air flow of drying air flow is realized, and the drying is accelerated;
2. through the flow guide block, pressure difference is formed on two sides of the turbulence fan blade, so that the turbulence fan blade can rotate spontaneously and maintain under the action of air flow, the matching of the rotating speed of the turbulence fan blade and the air flow is ensured, and a motor is not required to be additionally arranged to drive the turbulence fan blade to rotate.
Drawings
FIG. 1 is a schematic view of the structure of the inner container of the present invention;
FIG. 2 is a cross-sectional view of the liner of the present invention;
FIG. 3 is a schematic view of the drying assembly of the present invention (with the housing partially hidden);
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is an enlarged view of the portion B of FIG. 3;
FIG. 6 is a cross-sectional view of a drying assembly of the present invention;
FIG. 7 is an instantaneous fluid state 1 of the turbulator blade of the present invention;
FIG. 8 is an instantaneous fluid state 2 of the turbulator blade of the present invention;
FIG. 9 is an instantaneous fluid state 3 of the turbulator blade of the present invention;
FIG. 10 shows an instantaneous fluid state 4 of the turbulator blade of the present invention;
FIG. 11 shows an instantaneous fluid state 5 of the turbulator blade of the present invention;
FIG. 12 is an instantaneous fluid state 6 of the turbulator blade of the present invention;
FIG. 13 is an instantaneous fluid state 7 of the turbulator blade of the present invention;
in the figure, alpha is an airflow included angle between the fan blade and the airflow direction.
The notation in the figure is:
1. a housing; 11. an air duct; 12. an air inlet; 13. an air outlet; 2. a fan; 3. a heating element; 4. a turbulence fan blade; 41. a rotating shaft; 42. a blade; 5. an air flow boundary layer; 6. removing the body and swirling; 7. a flow guide block; 71. a flow guide surface; 8. an inner container.
Detailed Description
For a better understanding of the objects, structure and function of the invention, a drying assembly and a dishwasher according to the invention will be described in more detail with reference to the accompanying drawings.
As shown in fig. 1-5, the drying assembly of the present invention is used for air drying an article. The drying assembly comprises a shell 1, wherein the shell 1 is installed on the outer wall of the equipment inner container 8 to blow air into the inner container 8, and therefore air drying of articles in the inner container 8 is achieved.
Specifically, an air duct 11 is formed in the housing 1. The air duct 11 is L-shaped for the space of the apparatus. The air inlet 12 of the air duct 11 is provided with a fan 2. The fan 2 is a centrifugal fan 2, so the air inlet 12 of the air duct 11 is located on the side of the housing 1, and the air flow is sucked into the air duct 11 by the rotation of the fan 2.
The air duct 11 is provided with a heating element 3 at the downstream of the fan 2, the heating element 3 is a heating sheet forming a through hole, and the through hole is connected in series in the air duct 11. The heating sheet converts electric energy into heat energy, heats air flow flowing through the air duct 11, and forms hot air.
The wind channel 11 is provided with a rotatable turbulence fan blade 4 at the downstream of the heating body 3, and the turbulence fan blade 4 is arranged along the width direction of the wind channel 11 to enlarge the disturbance range.
As shown in fig. 6 to 13, the airflow flows through the turbulence fan blade 4 along with the airflow, and due to the viscosity of the fluid, the airflow flows through the surface of the turbulence fan blade 4 to form the airflow boundary layer 5. An air flow included angle alpha is formed between the air flow direction and the turbulent flow fan blade 4. The included angle alpha of the airflow is changed along with the rotation of the turbulent fan blades 4. Generally, the included angle alpha of the airflow is between 45 degrees and 90 degrees, the airflow boundary layer 5 is formed on the turbulence fan blade 4 through viscosity, the included angle alpha of the airflow is between 90 degrees and 45 degrees, the viscosity is not enough to enable the airflow boundary layer 5 to be continuously attached to the surface of the turbulence fan blade 4, the airflow boundary layer 5 is separated from the surface of the turbulence fan blade 4 through the viscosity, and a large number of small-sized stripping vortices 6 are formed and enter the inner container 8 along the air outlet 13 of the air duct 11. Thus, along with the rotation of the rotational flow fan blade, the airflow boundary layer 5 on the turbulent flow fan blade 4 is repeatedly formed and separated to form a separation vortex 6.
Wherein, 45 degrees to 90 degrees are the range of attachment angles, 90 degrees to 45 degrees are the range of detachment angles, the corresponding included angle alpha of the air flow in the range of the attachment angles is the attachment angle, and the included angle alpha of the air flow in the range of the detachment angles is the detachment angle. When the airflow included angle alpha is an attachment included angle, airflow forms an airflow boundary layer 5 on the turbulence fan blade 4 through viscosity; when the airflow included angle alpha is a separation included angle, the airflow boundary layer 5 is separated from the turbulent flow fan blade 4 to form a separation vortex 5. The airflow angle alpha is switched between the attachment included angle and the detachment included angle along with the rotation of the turbulence fan blade 4, so that the detachment vortex 5 is generated repeatedly, and the detachment vortex 5 enters the equipment inner container 8. Because the stripping vortex 5 rotates and advances, each moment does not designate a specific direction, which is beneficial to the hot air flow to cover more dishware and strengthen the drying effect.
The range of the attachment angle and the range of the detachment angle are based on Newton's law of viscosity, and therefore the weight and temperature of the fluid should be adjusted accordingly, and the present invention will not be described in detail.
In order to ensure the turbulent flow effect, the centers of the two ends of the turbulent flow fan blade 4 are provided with rotating shafts 41, and the rotating shafts 41 are rotatably connected to the side walls of the air duct 11. Generally, the rotating shaft 41 and the airflow direction are vertically arranged to effectively change the airflow included angle α, but a certain included angle may be formed between the rotating shaft 41 and the vertical position, and the airflow included angle α may be mainly changed.
The spoiler blade 4 includes at least two blades 42 radially disposed on the rotating shaft 41. To facilitate the detachment of the air boundary layer 5, the two blades 42 are preferably symmetrically arranged. The width of the blade 42 is reduced with the distance from the rotating shaft 41 to form a tip, so that the turbulent fan blade 4 is in a shuttle shape, an oval shape and the like.
In order to make the fan blade rotate, a driving motor can be arranged, but it is difficult to ensure that the turbulent fan blade 4 and the fan 2 are matched with each other. Therefore, in general, a convex flow guide block 7 is arranged in the air duct 11, and the flow guide block 7 is located on one side of the turbulent fan blade 4 away from the air outlet 13, that is, located at the upstream of the flow guide block 7. The flow guide block 7 extends from one side of the axis of the turbulent fan blade to the other side, and the flow guide surface 71 blocks part of air volume of the turbulent fan blade 4, so that the airflow dynamic pressure of the turbulent fan blade 4 along the two sides of the axis is different, the airflow dynamic pressure at the top surface of the flow guide block 7 is higher, and the turbulent fan blade 4 can rotate spontaneously in the airflow of the fan 2 and maintain to rotate all the time.
In order to reduce the air quantity blocked by the guide block 7, the guide block 7 is positioned at the edge of the air duct 11. And the surface of the guide block 7 forms an inclined guide surface 71, and the guide surface 71 gradually gets away from the inner wall of the air duct 11 along with approaching the turbulent fan blade 4 so as to reduce the wind resistance.
The axis, i.e., the center line of the rotating shaft, may be fixed, rotatable, integral, or separable, but the axes of the rotating shafts need to be maintained in a relative arrangement.
Thereby produce through vortex fan blade 4 and take off the body vortex, the stable air current that directly blew off of contrast ordinary fan 2, the vortex air current is favorable to hot-air to cover more tablewares, strengthens the stoving effect to guarantee that the tableware is heated evenly.
In addition, the application also discloses a dish washing machine, which comprises the drying component. The hot air blown out by the drying component dries the tableware in the dishwasher liner 8. The drying component of the application can be used for other equipment for air drying articles, such as a dryer and the like besides being used for a dishwasher.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A drying assembly comprises an air duct and is characterized in that a rotatable turbulence fan blade is arranged at an air outlet of the air duct, and an airflow included angle is formed between the turbulence fan blade and the airflow direction; the airflow angle is switched between an attachment included angle and a separation included angle along with the rotation of the turbulence fan blades; the included angle of the airflow is an attachment included angle, so that the airflow forms an airflow boundary layer on the turbulence fan blade through viscosity; the included angle of the airflow is a separation included angle, so that the boundary layer of the airflow overcomes the viscosity to separate from the turbulent flow fan blade, and a body-separating vortex discharged from the air outlet is formed.
2. The drying assembly of claim 1, wherein the turbulator blades are disposed along a width direction of the air channel.
3. The drying assembly of claim 1, wherein the turbulence fan blades are provided with a rotating shaft at the center of the two ends thereof, and the rotating shaft is rotatably connected to the side wall of the air duct.
4. The drying assembly of claim 3, wherein the axis of rotation is perpendicular to the direction of airflow.
5. The drying assembly of claim 3, wherein the turbulator blades comprise radially disposed blades on the shaft, at least two of the blades being disposed.
6. The drying assembly of claim 5, wherein the width of the blade decreases away from the axis of rotation to form a tip.
7. The drying assembly of claim 1, wherein a flow guide block is disposed on one side of the turbulator blades adjacent to the upstream side of the air duct, and the flow guide block extends from one side of the axis of the turbulator blades to the other side of the axis of the turbulator blades, so as to generate an air flow pressure difference on both sides of the axis of the turbulator blades, thereby rotating the turbulator blades.
8. The drying assembly of claim 7, wherein the deflector block is located at an edge of the tunnel.
9. The drying assembly of claim 7, wherein the surface of the baffle forms an inclined baffle surface that gradually moves away from the inner wall of the air duct as the baffle surface approaches the turbulating fan blades.
10. A dishwasher, characterized by comprising a drying assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111390794.3A CN114027763A (en) | 2021-11-23 | 2021-11-23 | Drying assembly and dish washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111390794.3A CN114027763A (en) | 2021-11-23 | 2021-11-23 | Drying assembly and dish washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114027763A true CN114027763A (en) | 2022-02-11 |
Family
ID=80145158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111390794.3A Pending CN114027763A (en) | 2021-11-23 | 2021-11-23 | Drying assembly and dish washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114027763A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020040534A1 (en) * | 2000-06-28 | 2002-04-11 | The Procter & Gamble Company | System and process for drying a shoe |
| KR20030059651A (en) * | 2002-01-03 | 2003-07-10 | 엘지전자 주식회사 | Centrifugal fan of vacuum cleaner |
| US20140321968A1 (en) * | 2013-04-29 | 2014-10-30 | Airbus Helicopters Deutschland GmbH | Blade rotary assembly with aerodynamic outer toroid spoiler for a shrouded propulsion rotary assembly |
| CN113413111A (en) * | 2021-07-22 | 2021-09-21 | 珠海格力电器股份有限公司 | Flow guide device, fan assembly and dish washing machine |
-
2021
- 2021-11-23 CN CN202111390794.3A patent/CN114027763A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020040534A1 (en) * | 2000-06-28 | 2002-04-11 | The Procter & Gamble Company | System and process for drying a shoe |
| KR20030059651A (en) * | 2002-01-03 | 2003-07-10 | 엘지전자 주식회사 | Centrifugal fan of vacuum cleaner |
| US20140321968A1 (en) * | 2013-04-29 | 2014-10-30 | Airbus Helicopters Deutschland GmbH | Blade rotary assembly with aerodynamic outer toroid spoiler for a shrouded propulsion rotary assembly |
| CN113413111A (en) * | 2021-07-22 | 2021-09-21 | 珠海格力电器股份有限公司 | Flow guide device, fan assembly and dish washing machine |
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