CN214404113U

CN214404113U - Air guide structure and fan

Info

Publication number: CN214404113U
Application number: CN202023352502.0U
Authority: CN
Inventors: 张晓泉; 陈中兆; 刘阳清; 麦焕; 陈宇强; 刘改强
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-15
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a fan technical field, concretely relates to wind-guiding structure, fan. An air guide structure comprising: the frame body is arranged below the air outlet grille along the air flow outflow direction, and an annular flow channel is formed in the frame body; the flow deflectors are radially arranged in the annular flow passage; the flow deflectors are driven by external force to rotate by taking the radial direction of the annular flow channel as a rotation center, and the flow deflectors have a first state of closing the annular flow channel and a second state of opening the annular flow channel under a rotation preset angle. The utility model discloses in set up the water conservancy diversion piece in the below of air-out grid, the water conservancy diversion piece is rotatable in annular duct, and when the fan inoperative, the water conservancy diversion piece rotates, and the concatenation of a plurality of water conservancy diversion piece realizes the closure to annular duct, and then has prevented that the air outlet department of dust through the air-out grid from entering into the wind channel in, influences the use of fan etc..

Description

Air guide structure and fan

Technical Field

The utility model relates to a fan technical field, concretely relates to wind-guiding structure, fan.

Background

The main structure of the air circulation fan comprises a driving motor, a turbine fan, a flow guide grid and a cylindrical shell. The air circulation fan can blow out the wind spirally along a certain direction, and the wind can form spiral columnar wind after being stirred by the fan blades. The air circulation fan blows air far away and has good directionality.

The guide grid of the existing air circulation fan is arranged at the axial air outlet, when the circulation fan is in a non-working state, external dust easily enters the air channel through the guide grid, and deposits on the impeller and the fan at the downstream of the air channel, so that the service life of the fan is influenced, and the generation of noise is easily caused.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that the axial compressor wind gap department of prior art well circulation fan easily gets into the dust to a wind-guiding structure, fan are provided.

In order to solve the above problem, the utility model provides a wind-guiding structure, include: the frame body is arranged below the air outlet grille along the air flow outflow direction, and an annular flow channel is formed in the frame body; the flow deflectors are radially arranged in the annular flow passage; the flow deflectors are driven by external force to rotate by taking the radial direction of the annular flow channel as a rotation center, and the flow deflectors have a first state of closing the annular flow channel and a second state of opening the annular flow channel under a rotation preset angle.

Optionally, the frame body comprises a first frame body and a second frame body which are mutually butted;

the first frame body is provided with an annular first frame and a first middle shaft arranged in the center of the first frame;

the second frame body is provided with an annular second frame and a second middle shaft arranged in the center of the second frame;

the annular flow passage is formed between the first frame and the first middle shaft and between the second frame and the second middle shaft.

Optionally, the guide vane is configured as a fan-ring structure, and a first rotating part and a second rotating part are respectively arranged on two opposite arc sides of the guide vane;

a plurality of first rotating grooves are formed in the first middle shaft along the circumferential direction of the first middle shaft, and the second rotating part is rotatably arranged on the first rotating grooves;

a plurality of second rotating grooves are formed in the second frame along the circumferential direction of the second frame, and the first rotating portion is rotatably arranged on the second rotating grooves.

Optionally, a plurality of lateral air outlets are arranged on the circumferential surface of the second frame.

Optionally, in the airflow outflow direction, the first rotating groove is disposed below the second rotating groove.

Optionally, the flow deflector further comprises a driving assembly, a first tooth portion is arranged at a shaft end of the second rotating portion, which is far away from the body of the flow deflector, and the driving assembly drives the first tooth portion.

Optionally, the first bottom bracket is configured as a hollow structure, and the drive assembly is disposed within the first bottom bracket.

Optionally, an annular groove is formed in the second middle shaft corresponding to the first rotating groove, and the first tooth portion is accommodated in the annular groove.

Optionally, the drive assembly comprises:

the driving motor is arranged in the first middle shaft, and a gear is arranged on the driving motor;

the rotary disc is arranged between the first middle shaft and the second middle shaft, a plurality of second tooth parts are arranged on the end face, facing the second middle shaft, of the rotary disc, and the second tooth parts are meshed with the first tooth parts;

the turntable also includes a third tooth portion that meshes with the gear.

Optionally, the driving assembly further includes a connecting member disposed between the driving motor and the turntable, a rotating shaft is disposed on the connecting member in a protruding manner, and a first shaft hole and a second shaft hole for the rotating shaft to pass through are respectively disposed on the turntable and the second shaft.

Optionally, the connecting piece orientation the protrusion is provided with the stopper on the terminal surface of carousel, be provided with on the carousel with the spacing arch of stopper cooperation effect to the restriction the turned angle of carousel.

The utility model also provides a fan, include: the air guide structure described in any one of the above.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an air guide structure includes: the frame body is arranged below the air outlet grille along the air flow outflow direction, and an annular flow channel is formed in the frame body; the guide vanes are radially arranged in the annular flow passage; the guide vanes rotate by taking the radial direction of the annular flow channel as a rotation center under the driving of external force, and the plurality of guide vanes have a first state of closing the annular flow channel and a second state of opening the annular flow channel under the rotation of a preset angle.

The utility model discloses in set up the water conservancy diversion piece in the below of air-out grid, the water conservancy diversion piece is rotatable in annular duct, and when the fan inoperative, the water conservancy diversion piece rotates, and the concatenation of a plurality of water conservancy diversion piece realizes the closure to annular duct, and then has prevented that the air outlet department of dust through the air-out grid from entering into the wind channel in, influences the use of fan etc..

2. The utility model provides an in the wind-guiding structure be provided with a plurality of side direction air outlets on the global of second frame, the setting of side direction air outlet has increased the air-out angle of fan.

3. The utility model provides an among the wind-guiding structure in on the air current outflow direction, first rotating groove sets up the second rotates the below in groove. First rotation groove is less than the second and rotates the groove setting, leads to installing the water conservancy diversion piece on first rotation groove and second rotation groove towards the one end perk of second framework, when the water conservancy diversion piece is in the closure state, can be better with air current direction side direction air outlet, when the increase side direction air outlet air output, reduces because of the noise that air current and wind channel wall collision produced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of a wind guide structure according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a first state of a baffle in embodiment 1 according to the present invention;

fig. 3 is a schematic structural view of a second state of a flow deflector according to embodiment 1 of the present invention;

fig. 4 is a schematic structural diagram of a first frame body in embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a second frame body in embodiment 1 of the present invention;

fig. 6 is a schematic structural view of a flow deflector according to embodiment 1 of the present invention;

fig. 7 is a schematic view of a closed state of a baffle in embodiment 1 provided by the present invention;

fig. 8 is a schematic structural diagram of a turntable according to embodiment 1 of the present invention;

fig. 9 is a schematic structural view of an air outlet grille according to embodiment 1 of the present invention;

fig. 10 is a schematic structural view of a connecting member according to embodiment 1 of the present invention;

fig. 11 is a schematic structural diagram of a driving motor according to embodiment 1 of the present invention;

fig. 12 is a sectional view of an air guide structure according to embodiment 1 of the present invention.

Description of reference numerals:

1-air outlet grille;

2-a first frame; 21-a first frame; 22-a first medial axis; 221-a first rotating groove;

3-a second frame; 31-a second frame; 32-a second medial axis; 311-second rotation groove; 312-lateral air outlet; 321-an annular groove; 322-second shaft hole;

4-flow deflectors; 41-a first rotating part; 42-a second rotating part; 43-first tooth;

5-a drive assembly; 51-a drive motor; 52-gear; 53-a turntable; 531-second tooth; 532-third tooth; 533-first shaft hole; 534-limit projection; 54-a connector; 541-a rotating shaft; 542-a limiting block.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, 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 invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 1 to 12, the air guiding structure provided in this embodiment includes a frame disposed below an air outlet grille 1 along an airflow outflow direction, wherein an annular flow channel is formed in the frame; the guide vanes 4 are radially arranged in the annular flow passage; the guide vanes 4 are driven by external force to rotate by taking the radial direction of the annular flow passage as a rotation center, and the guide vanes 4 have a first state of closing the annular flow passage and a second state of opening the annular flow passage under a rotation preset angle.

The wind-guiding structure in this embodiment is used on the circulation fan, and the lower extreme air intake department of circulation fan sets up the fan, with the leading-in wind channel of external air current to advance the air-out grid in this embodiment and flow out to the external world. The frame body in the embodiment is used as a part of the air duct of the whole circulating fan, and an annular flow channel is formed in the frame body so as to facilitate the flow deflector to close the air duct.

In the air guide structure in this embodiment, the opening and closing of the air duct in the axial flow direction is realized in the axial flow direction of the circulation fan. Specifically, when the air duct in the axial flow direction needs to be opened, as shown in fig. 3, the guide vane 4 is driven by an external force to rotate by a certain angle, where the angle is an included angle between the vane surface of the guide vane and the fluid flow direction, when the included angle is not 90 degrees, the air duct is in an opened state, and when the included angle is 90 degrees, the guide vanes are butted together to close the annular flow passage.

The event sets up the water conservancy diversion piece in the below of air-out grid in this embodiment, and the water conservancy diversion piece is rotatable in annular wind channel, and when the fan inoperative, the water conservancy diversion piece rotates, and the concatenation of a plurality of water conservancy diversion piece realizes the closure to annular wind channel, and then has prevented that the dust from entering into the wind channel through the air outlet department of air-out grid in, influences the use of fan etc..

The frame body in this embodiment includes two parts, namely a first frame body 2 and a second frame body 3, which are butted with each other, as shown in fig. 4 and 5, which show specific structures of the first frame body 2 and the second frame body 3:

as shown in fig. 4, the first frame 2 has an annular first frame 21, an upper end of the first frame 21 is provided with a mounting groove, and the outlet grille is mounted in the mounting groove of the first frame 21. The first middle shaft 22 is arranged at the center of the first frame 21, a plurality of spokes are bridged between the circumferential surface of the first middle shaft 22 and the inner side surface of the first frame 21, the spokes in the embodiment are arranged at four positions and used as deformation, and other spokes can be used as well, so that the first middle shaft 22 can be supported and fixed.

As shown in fig. 5, the second housing 3 has an annular second frame 31, and an upper end portion of the second frame 31 is formed with a mounting hole to be fitted to a lower end surface of the first frame 21. A second middle shaft 32 is arranged in the center of the second frame 31; a plurality of spokes are bridged between the circumferential surface of the second middle axle 32 and the inner side surface of the second frame 31, the number of the spokes in the embodiment is four, and the spokes with other numbers can be used as a deformation, so that the second middle axle 32 can be supported and fixed.

Therefore, in this embodiment, an annular flow passage is formed between the inner side surface of the first frame 21 and the circumferential surface of the first central shaft 22, and between the inner side surface of the second frame 31 and the circumferential surface of the second central shaft 32, so that the airflow from the fan can pass through the annular flow passage.

Further, in the present embodiment, a plurality of lateral air outlets 312 are disposed on the circumferential surface of the second frame 31 to increase the air outlet angle of the fan.

As shown in fig. 6, a specific structure of the baffle 4 is shown, in this embodiment, the baffle 4 is configured as a fan-ring structure, a first rotating portion 41 and a second rotating portion 42 are respectively disposed on two opposite arcs of the baffle 4, and both the first rotating portion 41 and the second rotating portion 42 are of a rotating shaft structure. The sector ring structure in the embodiment is simple to process, and the sector ring structure can be spliced into a circular ring structure to better adapt to the annular flow channel, and the annular flow channel is blocked, so that the sealing performance of the annular flow channel is improved, and the dustproof effect is improved.

The guide vane 4 in this embodiment is installed on the first frame body 2 and the second frame body 3, specifically, as shown in fig. 4, a plurality of first rotating grooves 221 are formed on the first central shaft 22 along the circumferential direction thereof, the second rotating portion 42 is rotatably disposed on the first rotating grooves 221, the first rotating grooves 221 support the second rotating portion 42, and at the same time, the second rotating portion 42 can rotate in the first rotating grooves 221, so that the structure is simple, and the installation of the guide vane is convenient.

Similarly, as shown in fig. 5, a plurality of second rotating grooves 311 are formed in the second frame 31 along the circumferential direction thereof, and the first rotating portion 41 is rotatably provided in the second rotating grooves 311. The second rotating groove 311 can also support the first rotating part 41, and has a simple structure and convenient installation of the guide vane.

Further, in the present embodiment, the first rotation groove 221 is disposed below the second rotation groove 311 in the airflow outflow direction. First rotating groove 221 is less than the setting of second rotating groove, leads to installing the water conservancy diversion piece on first rotating groove 221 and the second rotating groove towards the one end perk of second framework 3, when water conservancy diversion piece 4 is in the closure state, can be better with air current direction side direction air outlet, when increasing side direction air outlet air output, reduces because of the noise that air current and wind channel wall collision produced.

In this embodiment, in order to facilitate driving of the baffle, the baffle further includes a driving assembly 5, as shown in fig. 6, a first tooth portion 43 is disposed at a shaft end of the second rotating portion 42 away from the body of the baffle 4, the driving assembly 5 drives the first tooth portion 43, and the driving assembly 5 drives the first tooth portion 43 to further drive the baffle 4.

The first middle shaft 22 in this embodiment is configured as a hollow structure, the driving assembly 5 is disposed in the first middle shaft 22, and the first middle shaft 22 is covered on the driving assembly 5, so as to provide a dust-proof effect for the driving assembly 5.

Furthermore, in the present embodiment, an annular groove 321 is disposed at the position of the second central axle 32 corresponding to the first rotating groove 221, the first tooth portion 43 is accommodated in the annular groove 321, and the first central axle 22 is covered on the annular groove 321, so that a dust-proof protection effect on the first tooth portion 43 can be achieved.

As shown in fig. 8, the driving assembly 5 includes: the driving motor 51 is arranged in the first middle shaft 22, a gear 52 is arranged on the driving motor 51, and the gear 52 is installed on a motor shaft of the driving motor 51 in an interference fit or key installation mode. The rotating disc 53 is arranged between the first middle shaft 22 and the second middle shaft 32, a plurality of second tooth parts 531 are arranged on the end face, facing the second middle shaft 32, of the rotating disc 53, and the second tooth parts 531 are meshed with the first tooth parts 43; the middle position part of carousel processes into half moon shape breach, has processed the third tooth portion 532 with gear 52 meshing in the medial surface department of breach, drives gear 52 through driving motor 51 and rotates, and gear 52 drives the carousel 53 through third tooth portion 532 and rotates, and carousel 53 drives the water conservancy diversion piece 4 through second tooth portion 531 and rotates to the realization is to the adjustment of the turned angle of water conservancy diversion piece 4.

As shown in fig. 10, the driving assembly 5 further includes a connecting member 54 disposed between the driving motor 51 and the rotating plate 53, the connecting member 54 is provided with a protruding rotating shaft 541, and the rotating plate 53 and the second middle shaft 32 are respectively provided with a first shaft hole 533 and a second shaft hole 322 for the rotating shaft 541 to penetrate through. First, the driving motor 51 is locked to the connecting member 54 by a screw, and a through hole for passing a motor shaft is formed in the connecting member 54. The second shaft hole 322 is a blind hole structure, the shaft end of the rotating shaft 541 is abutted against the blind hole, the upper end of the first middle shaft 22 is opened, and when the air outlet grille 1 is installed on the first frame body 2, the air outlet grille 1 is pressed on the driving motor, so that the connecting piece 54 is abutted against the second shaft hole 322 of the second middle shaft 32, and the fixing of the connecting piece 54 is realized. And a swivel plate 53 is rotatably mounted between the connecting member 54 and the upper end surface of the second bottom bracket 32.

As shown in fig. 8 and fig. 10, a limiting block 542 is convexly disposed on an end surface of the connecting member 54 facing the rotating disc 53, a limiting protrusion 534 cooperating with the limiting block 542 is disposed on the rotating disc 53, and after the rotating disc 53 rotates a certain angle, the limiting protrusion 534 thereon is blocked by the limiting block 543 to limit the rotation angle of the rotating disc 53.

Example 2

The present embodiment provides a fan, and in particular, a circulation fan, which includes the air guiding structure in the foregoing embodiments, and has all technical advantages thereof, which are not described herein again.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. An air guide structure, comprising:

the frame body is arranged below the air outlet grille (1) along the air flow outflow direction, and an annular flow channel is formed in the frame body;

the guide vanes (4) are radially arranged in the annular flow channel;

the flow deflectors (4) are driven by external force to rotate by taking the radial direction of the annular flow channel as a rotation center, and the flow deflectors (4) have a first state of closing the annular flow channel and a second state of opening the annular flow channel under a rotation preset angle.

2. The air guide structure according to claim 1, wherein the frame body comprises a first frame body (2) and a second frame body (3) which are butted with each other;

the first frame body (2) is provided with an annular first frame (21) and a first middle shaft (22) arranged in the center of the first frame (21);

the second frame body (3) is provided with an annular second frame (31) and a second middle shaft (32) arranged in the center of the second frame (31);

the annular flow passage is formed between the first frame (21) and the first middle shaft (22), and between the second frame (31) and the second middle shaft (32).

3. The air guiding structure as recited in claim 2, characterized in that the flow deflector (4) is constructed as a fan-ring structure, and a first rotating part (41) and a second rotating part (42) are respectively arranged on two opposite arcs of the flow deflector (4);

a plurality of first rotating grooves (221) are formed in the first middle shaft (22) along the circumferential direction of the first middle shaft, and the second rotating part (42) is rotatably arranged on the first rotating grooves (221);

the second frame (31) is provided with a plurality of second rotating grooves (311) along the circumferential direction, and the first rotating portion (41) is rotatably arranged on the second rotating grooves (311).

4. The air guide structure according to claim 3, wherein a plurality of lateral air outlets (312) are disposed on a circumferential surface of the second frame (31).

5. The air guide structure according to claim 4, wherein the first turning groove (221) is provided below the second turning groove (311) in the airflow outflow direction.

6. The air guiding structure as recited in claim 3, further comprising a driving assembly (5), wherein a first tooth portion (43) is disposed at an axial end of the second rotating portion (42) far away from the body of the guide vane (4), and the driving assembly (5) drives the first tooth portion (43).

7. The air guiding structure as defined in claim 6, characterized in that the first central shaft (22) is constructed as a hollow structure, and the driving assembly (5) is arranged in the first central shaft (22).

8. The air guiding structure as recited in claim 7, wherein an annular groove (321) is formed in the second central shaft (32) corresponding to the first rotating groove (221), and the first tooth portion (43) is received in the annular groove (321).

9. Air guiding structure as defined in any one of claims 6-8, characterized in that said drive assembly (5) comprises:

the driving motor (51) is arranged in the first middle shaft (22), and a gear (52) is arranged on the driving motor (51);

the rotating disc (53) is arranged between the first middle shaft (22) and the second middle shaft (32), a plurality of second tooth parts (531) are arranged on the end face, facing the second middle shaft (32), of the rotating disc (53), and the second tooth parts (531) are meshed with the first tooth parts (43);

the rotary plate (53) further comprises a third toothed portion (532) meshing with the gear wheel (52).

10. The air guide structure according to claim 9, wherein the driving assembly (5) further includes a connecting member (54) disposed between the driving motor (51) and the rotating disc (53), a rotating shaft (541) is disposed on the connecting member (54) in a protruding manner, and a first shaft hole (533) and a second shaft hole (322) for passing through the rotating shaft (541) are respectively disposed on the rotating disc (53) and the second central shaft (32).

11. The air guide structure according to claim 10, wherein a limiting block (542) is convexly provided on an end surface of the connecting member (54) facing the rotary plate (53), and a limiting protrusion (534) cooperating with the limiting block (542) is provided on the rotary plate (53) to limit a rotation angle of the rotary plate (53).

12. A fan, comprising:

the air guide structure according to any one of claims 1 to 11.