WO2019037526A1

WO2019037526A1 - Air guide structure and fan

Info

Publication number: WO2019037526A1
Application number: PCT/CN2018/091656
Authority: WO
Inventors: 罗汉兵; 曹林; 潘文康; 劳承云; 朱露露; 张帅; 毛晓盼
Original assignee: 格力电器（武汉）有限公司; 珠海格力电器股份有限公司
Priority date: 2017-08-22
Filing date: 2018-06-15
Publication date: 2019-02-28
Also published as: CN107524636B; JP6853385B2; JP2020519812A; CN107524636A

Abstract

An air guide structure and a fan having same. The air guide structure comprises a frame (1) and multiple air guide plates (2) disposed in the frame (1). The two ends of each air guide plate (2) in the length direction thereof are connected to the frame (1). The end of at least one air guide plate (2) in the width direction thereof is provided with a bent portion (3) bent in the air incoming direction.

Description

Wind guiding structure and fan

Related application

The present application claims priority to Chinese Patent Application Serial No. No. No. No. No. No. No. No. No.

Technical field

The present application relates to the field of living electrical appliances, and in particular to a wind guiding structure and a fan.

Background technique

Tower fan is a new type of fan that has been popular in the market recently. Due to its unique column shape, it is beautiful and has a small footprint. The wind generated by the cross-flow fan is more natural and soft, and is favored by most consumers. The outlet of the existing tower fan is located in front of the fuselage, and the grille strip at the air outlet is a vertical strip structure arranged from top to bottom, and the outlet grille is fixedly arranged, relying on the tower fan relative to the base thereof. The rotation of the present invention realizes that in the product design process, the inventor of the present invention finds that since the width direction of the grille strip is disposed along the front side of the air outlet, the wind entering the air inside the casing from the air inlet at the rear of the fuselage is bypassed and disposed on the machine. The cross-flow vane in the center of the shell is blown out through the volute and then from the air outlet, so that the flow of the airflow before reaching the air outlet is toward the front side of the tower fan along the inertia, and the airflow to be blown out of the air outlet is subjected to the vertically arranged grille strip. The obstacle hinders the collision with the grille strip, causing a large loss of kinetic energy, resulting in a small wind speed, a short supply air distance, and a poor user experience.

Summary of the invention

Therefore, the technical problem to be solved by the present application is to overcome the defects in the prior art that the wind speed of the fan is small and the air supply distance is short due to the unreasonable structure of the grille, thereby providing a favorable wind speed and air supply distance. Wind guiding structure.

Further provided is a fan having the above air guiding structure.

The technical solutions adopted in this application are as follows:

An air guiding structure, comprising a frame body, and a plurality of air guiding plates disposed in the frame body, the two ends of the air guiding plate being respectively connected to the frame body along the length direction thereof, at least one of the air guiding bodies One end of the plate in the width direction thereof has a bent portion bent toward the wind direction.

The bent portion is disposed tangential to the incoming wind.

The bent portion of the wind deflector disposed near the upwind direction is bent more than the wind deflector disposed near the downwind direction.

The degree of bending of the bent portion of the plurality of air deflectors gradually decreases from a side close to the upwind direction to a side close to the downwind direction.

The other end of the air deflector along its width direction is a lead-out portion adjacent to the bent portion, and the extending direction of the lead-out portion is perpendicular to a vertical plane facing the air guiding structure.

A plurality of the air deflectors extend in the same direction.

A rib that is disposed across the wind deflector is also included.

The air deflector is fixedly disposed on the frame.

The side of the frame away from the bent portion has an expanded structure.

The side of the frame adjacent to the bent portion has a retaining portion for accommodating adjacent members.

A fan includes: a casing having an air outlet; a fan disposed in the casing to ventilate in a tangential direction of the fan; and the air guiding structure, wherein the frame is mounted on the fan At the air outlet, the bent portion is disposed toward the inside of the casing, and an extending direction of the wind deflector is aligned with an axial direction of the fan.

The fan is a tower fan, and the fan is a cross flow fan.

The casing has a cylindrical shape, and an air outlet surface formed by the air outlet has a circular arc surface, and the other end of the air deflector along a width direction thereof is a lead portion adjacent to the bent portion, and the outlet The portion is disposed perpendicular to a vertical plane passing through the center of the circular arc surface and tangential to the circular arc surface.

A base is also provided, disposed below the housing, the housing being reciprocally rotatable relative to the base.

The technical solution of the present application has the following advantages:

The air guiding structure provided by the present application comprises a frame body and a plurality of air guiding plates disposed in the frame body. The two ends of the air guiding plate along the length direction thereof are respectively connected to the frame body, and at least one air guiding plate is along the same One end in the width direction has a bent portion bent toward the wind direction. When the wind source and the air guiding structure are not disposed opposite each other, the air flow blows the wind guiding structure from the side of the air guiding structure, and the air flow blown by the wind source first In contact with the bent portion, the bent portion of the air deflector is bent toward the direction of the wind, and the angle between the bent portion and the wind direction of the wind is reduced, so that the collision loss caused when the airflow is in contact with the bent portion is reduced, which is advantageous. Maintain the kinetic energy of the airflow, increase the airflow speed, increase the air supply distance, and enhance the user experience.

2. The air guiding structure provided by the present application, the bending part is arranged tangentially to the wind, can minimize the collision loss generated when the airflow is in contact with the bending part, and gradually leads the airflow out of the air outlet.

3. The air guiding structure provided by the present application has a degree of bending of the bent portion of the wind deflector disposed near the windward direction, which is greater than a bending degree of the bent portion of the wind deflector disposed near the downwind direction, because The bending part of the wind plate can reduce the kinetic energy loss of the airflow, but at the same time, the adjustment effect of the air deflector on the air outlet direction is also reduced, so that the wind is severely biased to one side along the bent portion, in order to correct the wind direction, it is necessary to The bending degree of the bent portion of the partial air deflector is reduced, and since the wind source is located laterally of the air guiding structure, such as a volute fan, the air volume at the downwind direction is greater than the wind volume at the upwind direction, and the decrease is closer to the lower portion. The degree of bending of the bent portion of the air deflector provided by the wind direction can avoid reducing the air volume close to the upwind direction when the original air volume is small, and ensuring the uniformity of the air between the plurality of air deflectors as much as possible, and can effectively Correcting the direction of the wind, the corrected wind direction is obviously returned to the front of the wind guiding structure, which not only ensures the air volume, the air supply speed and the air supply distance, but also corrects the wind direction and the wind volume. Wind between the two Balance, significantly improved effect of wind of the air guide structure.

4. The air guiding structure provided by the present application, the bending degree of the bent portions of the plurality of air deflectors gradually decreases from the side close to the upwind direction to the side close to the downwind direction, since the air volume is from the upwind side to the downwind side. The stronger the wind, the smaller the wind deflecting portion of the deflector is, the smaller the bending degree is, the smaller the impact loss can be, the wind direction can be corrected, and the bending portion of the wind deflector is more reasonable.

5. The air guiding structure provided by the present application, the other end of the air guiding plate along the width direction thereof is a deriving portion adjacent to the bending portion, and the extending direction of the deriving portion is perpendicular to a vertical plane facing the air guiding structure, and the air flow is After the curved portion is gently guided to the lead-out portion, in order to allow the consumer located in front of the air guiding structure to feel the positive airflow, it is necessary to further correct the wind direction through the lead-out portion, but if the lead-out portion is directed toward the bent portion Relative bending, although more favorable for correcting the direction of the wind, the impact loss of this arrangement is too large, so the lead-out portion of the wind deflector is disposed perpendicular to the vertical plane facing the wind guiding structure, while ensuring the air volume. Further correct the direction of the wind.

6. The air guiding structure provided by the present application has an outer expansion structure on a side of the frame away from the bending portion, and the outer expansion structure is advantageous for increasing the air outlet angle of the air guiding structure.

7. The fan provided in the present application comprises a casing having an air outlet, a fan disposed in the casing, and a wind guiding structure disposed at the air outlet, wherein the frame of the air guiding structure is installed at the air outlet, and the bending portion is oriented The inside of the casing is arranged such that the wind exits along the tangential direction of the fan, and the extending direction of the wind deflector is consistent with the axial direction of the fan, so that the wind guiding structure can effectively reduce the impact loss of the wind, and can better correct the wind. The direction of the wind makes the fan's air supply wind speed high, the air supply distance is far, and the wind direction is positive, which improves the product experience.

DRAWINGS

In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the specific embodiments or the description of the prior art will be briefly described below, and obviously, the attached in the following description The drawings are some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without any creative work.

Figure 1 is a front elevational view of the air guiding structure provided in the first embodiment of the present application;

Figure 2 is a cross-sectional view taken along line A-A of the air guiding structure shown in Figure 1;

Figure 3 is a top cross-sectional view of the tower fan provided in the first embodiment of the present application;

4 is a wind tunnel experimental test chart of the wind guiding structure in the prior art;

Figure 5 is a side view of the air duct experiment of the air guiding structure provided in Figure 1.

Description of the reference signs:

1-frame; 2-air deflector; 3-bend; 4-outlet; 5-extension; 6-rib; 7-receiving; 8-shell; 9-crossflow fan.

Detailed ways

The technical solutions of the present application are clearly and completely described in the following with reference to the accompanying drawings. It is obvious that the described embodiments are a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description and the simplified description, and does not indicate or imply that the device or component referred to has a specific orientation, in a specific orientation. Construction and operation are therefore not to be construed as limiting the application. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meanings of the above terms in the present application can be understood in the specific circumstances for those skilled in the art.

Further, the technical features involved in the different embodiments of the present application described below may be combined with each other as long as they do not constitute a conflict with each other.

Embodiment 1

1 is a front view of the air guiding structure provided in the first embodiment of the present application; FIG. 2 is a cross-sectional view of the air guiding structure shown in FIG. 1 along the AA direction; FIG. 3 is a tower provided in the first embodiment of the present application. A top view of the fan. As shown in FIG. 1-3, the air guiding structure provided in this embodiment includes a frame body 1 and a plurality of air guiding plates 2 disposed in the frame body 1, and the air guiding plates 2 are respectively connected at two ends along the length direction thereof. On the frame 1, each end of each of the air deflectors 2 in the width direction thereof has a bent portion 3 bent toward the wind direction. When the wind source and the air guiding structure are not disposed opposite each other, the air flow is guided from the wind. The side of the structure is blown by the wind guiding structure, and the airflow blown by the wind source is first brought into contact with the bent portion 3, and the bent portion 3 of the wind deflector 2 is bent toward the windward direction to reduce the bending portion 3 and the wind direction. The angle of the collision causes the collision loss generated when the airflow is in contact with the bending portion 3, which is beneficial to maintaining the kinetic energy of the airflow, increasing the airflow speed, increasing the air supply distance, and improving the user experience.

4 is a wind tunnel experimental test diagram of the wind guiding structure in the prior art; FIG. 5 is a side view of the air duct experiment of the air guiding structure provided in FIG. 1 , as shown in FIG. 4-5 , the darker the color in the figure represents The larger the air volume is, the comparison between FIG. 4 and FIG. 5 shows that the air deflector with the bent portion has a larger air volume at the air outlet than the ordinary air deflector, and the wind direction does not deviate significantly.

The frame body 1 is vertically arranged in a curved rectangular shape, and a plurality of air deflectors 2 are vertically disposed in the frame body 1. The frame body 1 is further provided with arc-shaped reinforcing ribs 6 disposed perpendicularly to the wind deflector 2, The wind structure has a total of six air deflectors 2, and the degree of bending of the bent portion 3 of each wind deflector 2 gradually decreases from the side close to the upwind direction to the side close to the downwind direction, and the first one close to the upwind side The bent portion 3 of the wind deflector 2 is tangent to the direction of the incoming wind, and the degree of bending of the bent portion 3 of the third wind deflector 2 from the side close to the upwind direction to the fold of the fourth deflector 2 The degree of bending of the bent portion 3 is the largest.

The side close to the upwind direction is the side of the air outlet structure close to the wind source, and the side close to the downwind direction is the side of the air outlet structure away from the wind source.

The other end of the wind deflector 2 in the width direction thereof is a lead-out portion 4 adjacent to the bent portion 3, and the lead-out portion 4 is perpendicular to a vertical plane passing through the center of the circular arc surface and tangential to the circular arc surface It is provided that the airflow is smoothly guided to the lead-out portion 4 through the bent portion 3, and the wind direction is further corrected while ensuring the air flow amount, so that the consumer located directly in front of the air guiding structure can feel the positive wind.

The two frame sides of the frame body 1 disposed along the length direction further have an outer expansion structure 5 away from the side of the bending portion 3, and extend outwardly toward both sides of the air guiding structure, respectively, to expand the wind angle, the two frame sides The side closer to the bent portion 3 also has a retaining portion 7 that extends toward the wind deflector 2 for allowing other components located adjacent to the wind guiding structure to prevent installation interference.

The embodiment further provides a fan, specifically a tower fan. As shown in FIG. 3, the arrow in FIG. 3 indicates the flow direction of the airflow, and the tower fan includes a casing 8 having an air outlet, which is disposed in the casing 8. The flow fan 9 is provided with a wind guiding structure at the air outlet, and a base. The housing 8 has a cylindrical shape and is reciprocally rotatable relative to the base. The air outlet has a circular arc surface, and the frame 1 of the air guiding structure is installed at the air outlet. The extending direction of the wind deflector 2 coincides with the axial direction of the cross flow fan 9, the bent portion 3 is disposed toward the inside of the casing 8, and the bent portion 3 is bent toward the side of the volute, and the side close to the upwind direction is close to the volute On one side, the side close to the downwind direction is near the side of the volute tongue, and the extending direction of the lead portion 4 is perpendicular to the center of the arc surface, and the vertical plane tangential to the arc surface is perpendicular to each other, that is, the lead portion 4 is guided The front of the wind structure is set.

The air deflector 2 is fixedly disposed with the frame body 1, and the fan is swept by the rotation of the casing 8 relative to the base.

As an alternative embodiment of the first embodiment, the fan is a centrifugal fan, and the extending direction of the air guiding plate is consistent with the axial direction of the centrifugal fan and is horizontally disposed.

As an alternative embodiment of the first embodiment, the number of air deflectors of the air guiding structure can be designed according to the size of the air outlet and the density of the air guiding plate.

As an alternative embodiment of the first embodiment, the plurality of air deflectors include an air deflector that is not provided with a bent portion.

As an alternative embodiment of the first embodiment, the bending degree of the bent portions of the plurality of air deflectors generally decreases from the side close to the upwind direction to the side close to the downwind direction, but does not gradually decrease.

As an alternative embodiment of the first embodiment, the angle of intersection of the rib and the wind deflector is an acute angle or an obtuse angle.

As an alternative embodiment of the first embodiment, the shape of the frame body is adapted to the shape of the air outlet of the housing, and may be circular or other irregular shape.

As an alternative embodiment of the first embodiment, each frame side of the frame of the air guiding structure is provided with an outer expansion structure.

As an alternative embodiment of the first embodiment, both ends of the air deflector are rotatably connected to the frame.

It is apparent that the above-described embodiments are merely illustrative of the examples, and are not intended to limit the embodiments. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Obvious changes or variations resulting therefrom are still within the scope of protection created by this application.

Claims

An air guiding structure comprising a frame body (1) and a plurality of air guiding plates (2) disposed in the frame body (1), wherein the air guiding plate (2) is along a length thereof The two ends are respectively connected to the frame body (1), and at least one of the air guiding plates (2) has a bent portion (3) bent toward the wind direction in one end direction in the width direction thereof.
The air guiding structure according to claim 1, characterized in that the bent portion (3) is disposed tangentially to the incoming wind.
The air guiding structure according to claim 1 or 2, characterized in that the bending portion (3) of the wind deflector (2) disposed close to the upwind direction is bent more than the guide disposed near the downwind direction Wind board (2).
The air guiding structure according to any one of claims 1 to 3, characterized in that the bending portion (3) of the plurality of air guiding plates (2) is bent from a side close to the upwind direction The side to the downwind direction gradually decreases.
The air guiding structure according to any one of claims 1 to 4, characterized in that the other end of the wind deflector (2) along its width direction is an extension adjacent to the bent portion (3) In the portion (4), the extending direction of the lead-out portion (4) is perpendicular to a vertical plane facing the wind guiding structure.
The air guiding structure according to any one of claims 1 to 5, characterized in that a plurality of the air deflectors (2) extend in the same direction.
The air guiding structure according to any one of claims 1 to 6, characterized by further comprising a reinforcing rib (6) disposed across the air deflector (2).
The air guiding structure according to any one of claims 1 to 7, characterized in that the wind deflector (2) is fixedly disposed on the frame body (1).
The air guiding structure according to any one of claims 1 to 8, characterized in that the side of the frame (1) away from the bent portion (3) has an expanded structure (5).
The air guiding structure according to any one of claims 1 to 9, characterized in that the side of the frame body (1) close to the bent portion (3) has a yielding portion for accommodating adjacent parts. (7).
A fan, comprising:

a housing (8) having an air outlet;

a fan disposed in the casing (8) and capable of venting in a tangential direction of the fan;

The air guiding structure according to any one of claims 1 to 10, wherein the frame body (1) is mounted at the air outlet, and the bent portion (3) is disposed toward the inside of the casing (8) The extending direction of the wind deflector (2) is consistent with the axial direction of the fan.
A fan according to claim 11, wherein said fan is a tower fan and said fan is a cross flow fan (9).
The fan according to claim 12, wherein the casing (8) has a cylindrical shape, and an air outlet surface formed by the air outlet is a circular arc surface, and the air guiding plate (2) is along a width direction thereof. The other end is a lead-out portion (4) adjacent to the bent portion (3), and the lead-out portion (4) is vertical with respect to the center of the circular arc surface and tangent to the circular arc surface The plane is set vertically.
A fan according to any of claims 11-13, further comprising a base disposed below the housing (8), the housing (8) being reciprocally rotatable relative to the base.