CN110748509A

CN110748509A - Flow dividing device and bladeless fan

Info

Publication number: CN110748509A
Application number: CN201911088632.7A
Authority: CN
Inventors: 俞浩
Original assignee: Dreame Technology Shanghai Co Ltd
Current assignee: Dreame Technology Shanghai Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-02-04

Abstract

The invention discloses a flow dividing device and a bladeless fan, wherein the flow dividing device comprises: a flow divider; the air flow is divided and dredged; an airflow generator for generating a high-speed airflow; a seal assembly in the shape of a ring; and a support member closely coupled to the sealing assembly; wherein, the shunt, airflow generator, coaxial setting between seal assembly and the supporting member, the shunt is located airflow generator's top, seal assembly is located the shunt with airflow generator between, the supporting member will seal assembly parcel. The flow dividing device enables air flow passing through the flow dividing channel to be smooth and uniform, and prevents the air flow from leaking outwards to generate noise.

Description

Flow dividing device and bladeless fan

Technical Field

The invention relates to the field of bladeless fans, in particular to a flow dividing device and a bladeless fan.

Background

The existing bladeless fan generates airflow through the airflow generator, the airflow is upwards and freely guided into the nozzle to be emitted outwards, and the airflow can generate turbulence in the flow divider, so that noise is generated.

Accordingly, there is a need for a flow divider and a bladeless fan to solve the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a flow divider and a bladeless fan, wherein the flow divider for dividing and dredging air flow, an air flow generator for generating high-speed air flow, a sealing assembly and a supporting member are arranged; the flow divider, the airflow generator, the sealing assembly and the supporting member are coaxially arranged to fix the flow dividing device in the bladeless fan; the flow divider comprises a first member which is hollow inside and a second member which is concave inside and is coaxially arranged on the first member; the upper end of the second component is provided with at least two annular flow dividing ports, the first component and the second component are arranged oppositely to form a flow dividing space to guide airflow to the flow dividing channels, so that the airflow passing through the flow dividing channels is smooth and uniform, and the airflow is prevented from leaking outwards to generate noise.

To achieve the above objects and other advantages in accordance with the present invention, there is provided a flow divider and a bladeless fan comprising:

a flow divider; the air flow is divided and dredged;

an airflow generator for generating a high-speed airflow;

a seal assembly in the shape of a ring; and

the supporting component is tightly connected and matched with the sealing component;

wherein, the shunt, airflow generator, coaxial setting between seal assembly and the supporting member, the shunt is located airflow generator's top, seal assembly is located the shunt with airflow generator between, the supporting member will seal assembly parcel.

Preferably, the flow divider includes:

a first member having a hollow interior; and

a second member recessed therein and coaxially disposed over the first member;

the upper end of the second component is provided with at least two annular flow dividing ports, and the first component and the second component are oppositely arranged to form a flow dividing space.

Preferably, the first member is provided with a first curved member which wraps around the second member;

the first curved member extends downwardly to form a connecting member.

Preferably, the second member is provided with a second bending member, the bottom of the second bending member is provided with a groove, and a flow blocking column is arranged in the groove.

Preferably, the outer side of the supporting member extends downwards along the axial direction to form an outer flange;

the inner side of the supporting component extends downwards along the axial direction to form an inner flange, and the lower end of the inner flange is connected with a supporting skirt part;

the upper part of the supporting skirt part and the inner side of the supporting component form a clamping groove.

Preferably, the seal assembly comprises:

the upper end and the lower end of the first sealing ring extend inwards along the center of the first sealing ring and are not contacted with each other, so that a clamping jaw structure is formed;

the upper part of the outer side of the first sealing ring is provided with T-shaped buckle structures which are arranged in a circumferential array;

the lower part of the outer side of the first sealing ring is connected with a lower flange, and a certain gap is formed between the lower flange and the first sealing ring to form a groove;

the longitudinal part of the T-shaped buckle structure and the first sealing ring are integrated into a whole; the clamping groove is matched with the T-shaped buckling structure on the first sealing ring, and the lower portion of the supporting skirt portion is at least partially overlapped with the groove of the first sealing ring.

Preferably, the seal assembly comprises:

the lower bottom surface of the flow divider is provided with a groove which is matched with the upper part of the second sealing ring;

the lower part of the second sealing ring is provided with at least two supporting legs, and the supporting legs are connected with the upper end face of the airflow generator.

Preferably, the periphery of the annular shunt opening is provided with an annular sealing ring.

Preferably, the airflow generator comprises:

a power chamber providing kinetic energy for generating a high velocity air stream;

an impeller coaxially disposed below the power chamber;

the drainage tube is hollow inside and the upper end and the lower end of the drainage tube are both opened so as to form an upper opening and a lower opening respectively;

the power chamber and the impeller are arranged in the drainage tube, and an annular drainage cavity is formed.

Furthermore, the present disclosure also discloses a bladeless fan including any one of the above flow dividing devices.

Compared with the prior art, the invention has the beneficial effects that: the air flow is divided and dredged by arranging a flow divider, an air flow generator for generating high-speed air flow, a sealing assembly and a supporting member; the flow divider, the airflow generator, the sealing assembly and the supporting member are coaxially arranged to fix the flow dividing device in the bladeless fan; the flow divider comprises a first member with a hollow interior and a second member with a recessed interior and coaxially disposed over the first member; the upper end of the second component is provided with at least two annular flow dividing ports, the first component and the second component are arranged oppositely to form a flow dividing space to guide airflow to the flow dividing channels, so that the airflow passing through the flow dividing channels is smooth and uniform, and the airflow is prevented from leaking outwards to generate noise.

Drawings

FIG. 1 is a perspective view of a bladeless fan according to one embodiment of the present invention;

FIG. 2 is a perspective view of a proposed flow diverter, according to one embodiment of the present invention;

FIG. 3 is a perspective view of a proposed splitter apparatus according to one embodiment of the present invention;

FIG. 4 is a top view of a first curved member of the flow diverter according to one embodiment of the present invention;

FIG. 5 is a top view of a second curved member of the proposed flow splitter in accordance with an embodiment of the present invention;

FIG. 6 is an elevational cross-sectional view of a proposed flow diverter, according to one embodiment of the present invention;

fig. 7 is a front sectional view of a proposed support member according to an embodiment of the present invention;

FIG. 8 is a cross-sectional view of a first seal ring of a proposed seal assembly according to one embodiment of the present invention;

FIG. 9 is a perspective view of a first seal ring of the proposed seal assembly according to one embodiment of the present invention;

FIG. 10 is a cross-sectional view of a first seal ring of a proposed seal assembly according to one embodiment of the present invention

FIG. 11 is a partial cross-sectional view of a bladeless fan according to one embodiment of the present invention;

figure 12 is a cross-sectional view of a proposed airflow generator in accordance with one embodiment of the present invention.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification.

In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.

Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

According to an embodiment of the present invention, as shown in fig. 1, it can be seen that the flow dividing device comprises:

a flow divider 10; the air flow is divided and dredged;

an airflow generator 20 for generating a high-speed airflow;

a seal assembly 30 having an annular shape; and

a support member 40 in close fitting engagement with the seal assembly;

wherein, coaxial setting between shunt 10, airflow generator 20, seal assembly 30 and the bracing member 40, shunt 10 is located airflow generator 20's top, seal assembly 30 is located shunt 10 with airflow generator 20 between, bracing member 40 will seal assembly 30 wraps up.

Referring now to fig. 2, 3, it can be seen that the flow diverter 10 comprises:

a first member 110 having a hollow interior; and

a second member 120 internally recessed and coaxially disposed over said first member;

as shown in fig. 5, at least two annular diversion ports 121 are formed at the upper end of the second member 120, and the first member 110 is disposed opposite to the second member 120 to form a diversion space.

Referring now to fig. 4, the first member 110 is provided with a first curved member 111, the first curved member 111 wrapping the second member 120;

the first bending member 111 extends downward to form a connection part 113.

The second member 120 is provided with a second bending member 111, and referring to fig. 6, the bottom of the second bending member 111 is provided with a groove 123, and a flow blocking column 124 is arranged in the groove. The air flow in the bladeless fan body enters the flow divider 10 from the inner side of the body through the air flow generator 20, the flow divider 10 is separated into at least two annular ports 121 in a flow dividing channel, the annular flow dividing ports 121 extend into and are tightly attached to the flow dividing channel 50, the air flow smoothly enters the flow dividing channel 50, the air flow is prevented from rapidly entering a long and narrow nozzle to form noise, and user experience is improved.

Referring now to FIG. 7, the outer side of the support member 40 extends axially downward to form an outer flange 410;

an inner flange 420 is formed by extending the inner side of the supporting member 40 downwards along the axial direction, and the lower end of the inner flange 420 is connected with a supporting skirt 430;

the upper portion of the support skirt 430 forms a catch 431 with the inner side of the support member 40.

The seal assembly 30 includes:

referring now to fig. 8 and 9, it can be seen that, the first sealing ring 310, the upper and lower ends of the first sealing ring 310 extend inwards along the center of the first sealing ring 310 without contacting, forming a jaw structure 311;

the upper part of the outer side of the first sealing ring 310 is provided with T-shaped buckling structures 314 which are arranged in a circumferential array;

a lower flange 3122 is connected to the lower portion of the outer side of the first sealing ring 310, and a gap is provided between the lower flange 312 and the first sealing ring 310 to form a groove 313;

wherein, the longitudinal part of the T-shaped buckle structure 314 and the first sealing ring 310 are integrated into a whole; the locking groove 431 is adapted to the T-shaped locking structure 314 of the first sealing ring 310, and the lower portion of the supporting skirt 430 at least partially overlaps the groove 313 of the first sealing ring 310.

The seal assembly 30 includes:

as can be seen from fig. 10 and 11, the second sealing ring 320 has a groove 125 on the lower bottom surface of the flow divider 10, which is adapted to the upper portion of the second sealing ring 320;

the lower part of the second sealing ring 320 is provided with at least two supporting legs 321, the supporting legs 321 are connected with the upper end surface of the airflow generator 20, and the upper part of the second sealing ring 320 can ensure the tight connection with the diverter 10; the flow divider 10 vibrates up and down due to the vibration of the airflow generator 20, and the supporting legs 321 are arranged on the lower portion of the second sealing ring 320, so that the supporting legs 321 deform due to vibration, the vibration is relieved to a certain extent, and the service life of the flow divider 10 is prolonged. .

Wherein the first sealing ring 310 is configured to seal a gap between the flow generator 20 and the outside of the flow diverter 10, and the second sealing ring 320 is configured to seal a gap between the flow generator 20 and the inside of the flow diverter 10; the supporting member 40 is connected with the first sealing ring 310 to realize that the sealing and damping device is fixed in the bladeless fan.

Referring now to fig. 1, the annular tap opening 121 is provided with an annular sealing ring 331 around its periphery.

The shape of subchannel 50 is changeable, has a plurality of angles, though annular subchannel 121 stretches into and hugs closely in subchannel 50, but still can be because of the multi-angle of subchannel 50 produces the gap, follows the air current that annular subchannel 121 got into returns in the organism of bladeless fan, causes the problem that the air current intensity of jet-out is not enough, still can cause the noise, annular subchannel 121's periphery is equipped with annular seal ring 331, has the multi-angle, inboard with annular subchannel 121 closely laminates, the outside with subchannel 50 closely laminates, can effectively block gaseous backward flow, prevents that the air flow from diffusing all around, has not only improved the intensity of air, has still reduced the noise, further improves user experience degree.

In a specific embodiment, the arrangement of the annular diversion ports 121 may be that at least two of the annular diversion ports 121 are arranged on the second member 120 side by side at intervals, or may be arranged in a circumferential array around the central axis of the second member 120; wherein the number of the first bending members 111 of the first member 110 and the second bending members 122 of the second member 120 is the same as the number of the annular diversion ports 121.

Referring now to fig. 12, it can be seen that the airflow generator 20 includes:

a power house 210 that provides kinetic energy for generating a high-speed airflow; an impeller driver 250 is provided in the power chamber 210.

And an impeller 230 coaxially arranged below the power chamber, wherein a power output end of the impeller driver 250 is in transmission connection with the impeller 230, so that the impeller 230 is driven by the impeller driver 250 to rotate around the axis of the draft tube 220.

A drainage tube 220 which is hollow inside and has both open upper and lower ends to form an upper opening and a lower opening, respectively; the upper opening corresponds to the connection part 113 of the flow divider 10, but since the first sealing ring 310 is located between the flow divider 10 and the airflow generator 20, the upper opening of the drainage tube 220 is not in direct contact with the connection part 113, thereby further reducing the vibration transmission of the airflow generator 20.

Wherein the power chamber 210 and the impeller 230 are disposed in the draft tube 220 and form an annular draft tube 240.

In a specific embodiment, the air flow is accelerated by the impeller 230 in the airflow generator 20, and a negative pressure is generated in the annular flow-guiding cavity 240 due to the rotation of the impeller, and the air flow flows upward along the annular flow-guiding cavity 240, enters the flow divider 10, flows out of the annular flow-dividing port 121 into the flow-dividing channel 50, and is discharged out of the bladeless fan.

The number of apparatuses and the scale of the process described herein are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. A flow diversion apparatus, comprising:

a flow divider (10); the air flow is divided and dredged;

an airflow generator (20) for generating a high-speed airflow;

a seal assembly (30) having an annular shape; and

a support member (40) in close fitting engagement with the seal assembly (30);

wherein, coaxial setting between shunt (10), airflow generator (20), seal assembly (30) and the bracing member (40), shunt (10) are located airflow generator (20)'s top, seal assembly (30) are located shunt (10) with airflow generator (20) between, bracing member (40) will seal assembly (30) parcel.

2. A shunt device according to claim 1, wherein the shunt (10) comprises:

a first member (110) which is hollow inside; and

a second member (120) internally recessed and coaxially disposed over said first member (110);

the upper end part of the second component (120) is provided with at least two annular flow dividing ports (121), and the first component (110) and the second component (120) are oppositely arranged to form a flow dividing space.

3. A shunt device according to claim 2 wherein the first member (110) is provided with a first curved member (111), the first curved member (111) enveloping the second member (120);

the first bending member (111) extends downward to form a connection part (113).

4. A shunt device according to claim 2, wherein the second member (120) is provided with a second curved member (122), and the bottom of the second curved member (122) is provided with a recess in which a flow blocking post (124) is provided.

5. A shunt device according to claim 1 wherein the support member (40) extends axially outwardly downwardly to form an outer flange (410);

the inner side of the supporting member (40) extends downwards along the axial direction to form an inner flange (420), and the lower end of the inner flange (420) is connected with a supporting skirt part (430);

the upper portion of the support skirt (430) and the inner side of the support member (40) form a catch (431).

6. A shunt device according to claim 5 wherein the seal assembly (30) comprises:

the upper end and the lower end of the first sealing ring (310) extend inwards along the center of the first sealing ring (310) and are not contacted with each other, so that a clamping jaw structure (311) is formed;

the upper part of the outer side of the first sealing ring (310) is provided with T-shaped buckling structures (314) which are arranged in a circumferential array;

the lower part of the outer side of the first sealing ring (310) is connected with a lower flange (312), and a certain gap is formed between the lower flange (312) and the first sealing ring (310) to form a groove (313);

wherein the longitudinal part of the T-shaped buckle structure (314) and the first sealing ring (310) are integrated; the clamping groove (431) is matched with a T-shaped buckling structure (314) on the first sealing ring (310), and the lower part of the supporting skirt part (430) is at least partially overlapped with a groove (313) of the first sealing ring (310).

7. A shunt device according to claim 5 wherein the seal assembly (30) comprises:

the lower bottom surface of the flow divider (10) is provided with a groove (125) which is matched with the upper part of the second sealing ring (320);

the lower part of the second sealing ring (320) is provided with at least two supporting legs (321), and the supporting legs (321) are connected with the upper end face of the airflow generator (20).

8. A device according to claim 2, wherein the annular flow-dividing opening (121) is provided with an annular sealing ring (331) around its periphery.

9. The flow dividing device of claim 1, wherein the airflow generator (20) comprises:

a power chamber (210) providing kinetic energy for generating a high velocity air stream;

an impeller (230) coaxially disposed below the power chamber (210);

a drainage tube (220) which is hollow inside and has both open upper and lower ends to form an upper opening and a lower opening respectively;

wherein the power chamber (210) and the impeller (230) are disposed within the draft tube (220) and form an annular draft tube cavity (240).

10. A bladeless fan, comprising a flow divider according to any one of claims 1-9.