CN111795490A

CN111795490A - Wind-guiding structure, wind channel subassembly and tuber pipe formula internal unit

Info

Publication number: CN111795490A
Application number: CN202010548572.9A
Authority: CN
Inventors: 李家旭; 刘为爽; 王萍; 梁郁龙
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-10-20

Abstract

The application provides a wind-guiding structure, wind channel subassembly and tuber pipe formula internal unit. The air guide structure comprises a windward part, wherein the windward part comprises a curved surface, and when airflow impacts the curved surface, the curved surface guides and changes the flowing direction of the airflow. The windward part with the curved surface is adopted to play a role in guiding and changing the airflow direction of the air duct, and the local air volume can be changed, so that the local air volume can be improved.

Description

Wind-guiding structure, wind channel subassembly and tuber pipe formula internal unit

Technical Field

The application belongs to the technical field of air duct type internal machines, and particularly relates to an air guide structure, an air duct component and an air duct type internal machine.

Background

Most of the existing air pipe type internal machines use a fan blade and a volute as a flow guide component, and no matter the air pipe type internal machines are blowing type internal machines or suction type internal machines, when the fan blade rotates, airflow is introduced into a volute cavity body due to the rotation of the fan blade, so that air supply is realized. However, the volute is located in the cuboid shell of the air duct machine, when the fan blade rotates, the front part of the volute blocks part of air introduced into the volute, and in the process of air induction, part of air volume flows into the edges or corners of the cuboid cavity, so that the air volume introduced into the volute is not ideal.

Disclosure of Invention

Therefore, the technical problem that this application will be solved lies in providing a wind-guiding structure, wind channel subassembly and tuber pipe formula internal combustion engine, can increase the amount of wind of local position.

In order to solve the above problem, the present application provides an air guide structure, including:

the windward part comprises a curved surface, and when airflow strikes the curved surface, the curved surface guides and changes the flowing direction of the airflow.

Preferably, the curved surface comprises an arcuate cylindrical surface.

Preferably, the arc-shaped cylindrical surface is provided with a rib and/or a groove, and the extending direction of the rib and/or the groove is the same as the extending direction of the arc segment corresponding to the cross section of the cylindrical surface.

Preferably, the width of the rib or the groove is 8-15mm, and the height of the rib or the depth of the groove is 2-3 mm.

Preferably, the protruding ribs or the grooves are provided in plurality and arranged in parallel at intervals.

Preferably, the number of said ribs or said grooves is 8-15.

Preferably, the air guide structure is an arc-shaped plate structure.

According to another aspect of the present application, there is provided an air duct assembly including the air guide structure as described above.

According to still another aspect of the present application, there is provided an air duct type internal unit, including the air guide structure as described above or the air duct assembly as described above.

Preferably, the air pipe type inner machine comprises a fan; the air guide structure is an arc-shaped plate, at least four arc-shaped plates are arranged on the periphery of the fan respectively, and air flow passing through the fan is guided.

Preferably, the central angle of the windward side arc line segment of the cross section of the arc plate is 50-100 degrees.

The application provides a wind-guiding structure includes: a windward portion; the windward portion includes a curved surface that guides and changes a flow direction of the airflow when the airflow strikes the curved surface. The windward part with the curved surface is adopted to play a role in guiding and changing the airflow direction of the air duct, and the local air volume can be changed, so that the local air volume can be improved.

Drawings

Fig. 1 is a schematic structural view of an air guiding structure according to an embodiment of the present application;

fig. 2 is another schematic structural view of an air guiding structure according to an embodiment of the present application;

fig. 3 is a schematic radian view of a wind guide structure according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an air duct type indoor unit according to an embodiment of the present application.

The reference numerals are represented as:

1. an arc-shaped plate; 11. a groove; 12. a rib; 13. an arc segment; 2. a heat exchanger; 3. a cross-flow fan; 4. an air outlet; 5. and (4) an air return opening.

Detailed Description

Referring to fig. 1 to 4 in combination, according to an embodiment of the present application, a wind guiding structure includes:

The windward part with the curved surface is arranged, the direction of airflow impacting the curved surface is guided and changed by the curved surface, the air quantity at a local position can be improved, for example, the air quantity at the local position is increased or reduced, so that the air quantity introduced into a volute by partial equipment such as an air pipe type internal machine can be improved, and the use efficiency of the equipment is improved.

In some embodiments, the curved surface comprises an arcuate cylindrical surface.

The arc-shaped cylindrical surface is part of the outer peripheral surface of the cylinder, and the curved surface of the arc-shaped cylindrical surface structure is adopted, so that a better drainage effect can be realized, the smooth transition performance of the arc-shaped cylindrical surface is exerted, the airflow direction is changed, and the wind resistance is reduced.

In some embodiments, the arc-shaped cylindrical surface is provided with a rib 12 and/or a groove 11, and the extending direction of the rib 12 and/or the groove 11 is the same as the extending direction of the arc-shaped line segment 13 corresponding to the cross section of the cylindrical surface.

The convex edge 12 and the groove 11 are arranged on the cylindrical surface, and the arrangement directions of the convex edge 12 and the groove 11 are the same as the extension direction of the arc line section 13 corresponding to the cross section of the arc cylindrical surface, so that the arc flow track is better played, and the function of increasing the local air volume is achieved; and under the same air volume requirement, the rotating speed of the fan can be reduced, and the noise of the internal machine is reduced.

The convex ribs 12 can be arranged on the arc-shaped cylindrical surface with the convex curved surface, or the grooves 11 can be arranged on the arc-shaped cylindrical surface with the concave curved surface, or the convex ribs 12 and the grooves 11 can be simultaneously arranged on one of the two curved surfaces, and the simultaneous arrangement can be regular interval arrangement.

In some embodiments, the width of the rib 12 or groove 11 is 8-15mm, and the height of the rib 12 or the depth of the groove 11 is 2-3 mm. Optionally, the ribs 12 or the grooves 11 are provided in plurality and arranged in parallel at intervals. Alternatively, the number of ribs 12 or grooves 11 is 8-15.

The depth and width of the convex edge 12 and the groove 11 and the corresponding number are limited in a specific range, so that the flow guide effect of the convex edge 12 and the groove can be best exerted, if the width exceeds the range, the corresponding number is less, the good flow guide effect is not achieved, and if the width is less than the range, the number is more, the integral resistance of the air flow is increased, and the flow guide effect is influenced.

In some embodiments, the air guiding structure is an arc plate 1 structure.

The arc-shaped plate 1 is directly adopted as an air guide structure, so that the air guide structure is simple to manufacture and convenient to install.

In some embodiments, the air duct type internal unit comprises a fan; the air guide structure is an arc-shaped plate 1, the number of the arc-shaped plates 1 is at least four, the four arc-shaped plates are arranged around the fan respectively, and air flow passing through the fan is guided.

The fan comprises a cross-flow fan 3, as shown in fig. 4, a plurality of arc-shaped plates 1 are arranged around the cross-flow fan 3, for example, a convex arc-shaped plate 1 is arranged at the windward side of a volute of the cross-flow fan 3, and a concave arc-shaped plate 1 is arranged at one side of the volute, so that an air guide track can be formed, and the air flow sent by the heat exchanger 2 is guided into the volute as much as possible, so as to achieve the effect of increasing the air volume.

In some embodiments, the central angle of the windward arc segment 13 of the arc cross section is 50-100 °, preferably 60 °.

If the angle of the central angle exceeds the range, the included angle formed by the intersection of the connecting line between the arc top and the end point of the arc line section 13 and the direction of the airflow is too large, so that the airflow flow is unstable, the airflow is difficult to be guided to change to a proper position, and the airflow is not beneficial to guiding and playing an opposite role; conversely, if the angle of the central angle is smaller than the above range, the angle is too small, which causes resistance and prevents the dispersed air flow from being directed.

The following describes in detail the air duct type internal machine having the air guide structure.

A heat exchanger 2 and a cross-flow fan 3 are arranged in a traditional air pipe type internal machine, and air flow sent from an air return opening 5 of the heat exchanger 2 is sent out from an air outlet 4 of the cross-flow fan 3. An arc-shaped plate is arranged at the position, opposite to the cross flow fan 3, of the volute of the heat exchanger 2, the convex surface of the arc-shaped plate is a windward surface, and an arc-shaped plate with a concave windward surface is arranged on the side edge of the volute.

Through the drainage effect of the convex windward arc plate 1, the airflow can flow to the position near the induced air port of the volute along the convex track of the arc plate 1, the induced air amount entering the volute in unit time is increased, and similarly, the concave windward arc plate 1 arranged on the side edge of the volute guides the air which should flow to the corner of the cavity and the wall of the cavity to the position near the induced air port of the volute, and the induced air amount entering the volute in unit time is increased. In addition, for the air suction type air duct machine, the convex windward arc-shaped plate 1 can prevent induced wind from directly blowing the volute, and the risk of condensation of the volute is reduced.

And to the formula of blowing air conditioner of other forms, the arc 1 plays the effect of increase amount of wind equally, and the spiral case is direct blows to evaporimeter one side from air outlet 4 induced air, can obtain bigger amount of wind under the same internal machine rotational speed, satisfies under certain performance requirement, has reduced internal fan rotational speed, has reduced the internal machine noise.

To the unsmooth degree of arc 1, can adopt its central angle that corresponds to describe, because this application can add arc 1 in traditional wind tubular indoor unit, the chord length that can select to use arc 1 is the same with the width of the spiral case of wind tubular indoor unit, chooses for use the central angle to reach preferred drainage effect for 60 this moment, leads the air that the fan was drawn to the spiral case induced air opening as far as possible. However, the central angle of the convex windward arc plate can also be selected to be larger than 60 degrees so as to realize better flow guiding effect.

The arc can be directly fixed in the corresponding position by screws, the surface of the arc is provided with a transverse groove 11 and/or an arched convex edge 12, so that the air guide is facilitated, the pressure of the air directly blown onto the arc can be dispersed, and under the same pressure, the pressure of the air in the small groove 11 is large, so that the air flow on the arc 1 is accelerated, and the effect of facilitating the air guide is achieved.

The depth and the width of the groove 11 are also specified, the depth is 2-3mm, the width is 8-15mm, the too deep depth of the groove 11 can cause the strength of the arc-shaped plate to be insufficient, the arc-shaped plate is easy to damage, and if the depth is too shallow, the flow guiding function of the arc-shaped groove can not be well played; if the width is too wide, if the width exceeds 20mm, the drainage function of the groove 11 cannot be well played, the purpose of guiding the airflow to the volute air guiding opening more by utilizing the arc is violated, so that the number of the grooves 11 is less, the arc-shaped flow guiding function cannot be well played, and similarly, if the width is too narrow, if the width is less than 5mm, the number of the grooves 11 is correspondingly increased, the integral resistance of the airflow in the groove 11 is increased, the flow guiding function of the air conditioner can also be influenced, and the production and processing cost is high. For curved plates, the thickness of the curved plate 1/3 can also be optimized according to the depth of the groove 11, and the number of the curved grooves is optimized to be 8-15.

The specific structure of the arc-shaped plate is not limited to the arc-shaped plate, and the arc-shaped plate can also be a similar arc-shaped structure, or a structure which uses different structures to guide the flow of the volute induced-draft type internal machine according to the flow of a wind field, the specific structure is determined according to different internal machines, and the structure and the size can be adjusted to give priority to actual conditions.

It is easily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims

1. An air guide structure, comprising:

2. The air guide structure according to claim 1, wherein the curved surface includes an arc-shaped cylindrical surface.

3. The air guide structure according to claim 2, characterized in that the arc-shaped cylindrical surface is provided with a rib (12) and/or a groove (11), and the extending direction of the rib (12) and/or the groove (11) is the same as the extending direction of the arc-shaped line segment (13) corresponding to the cross section of the cylindrical surface.

4. The air guiding structure as defined in claim 3, wherein the width of the rib (12) or the groove (11) is 8-15mm, and the height of the rib (12) or the depth of the groove (11) is 2-3 mm.

5. The air guide structure according to claim 3, wherein the ribs (12) or the grooves (11) are provided in plural and are arranged in parallel at intervals.

6. The air guiding structure as defined in claim 5, wherein the number of the ribs (12) or the grooves (11) is 8-15.

7. The air guiding structure as recited in claim 1, wherein the air guiding structure is an arc-shaped plate (1) structure.

8. An air duct assembly comprising the air guide structure of any one of claims 1 to 7.

9. An air duct type indoor unit, comprising the air guide structure according to any one of claims 1 to 7 or the air duct assembly according to claim 8.

10. The air duct type indoor unit according to claim 9, wherein the air duct type indoor unit comprises a fan; the air guide structure is an arc-shaped plate (1), at least four arc-shaped plates are arranged on the periphery of the fan respectively, and air flow passing through the fan is guided.

11. The air duct type indoor unit according to claim 10, wherein the central angle of the windward side arc segment (13) of the arc-shaped plate cross section is 50-100 degrees.