A flow dividing device and a bladeless fan

Abstract

The present invention discloses a flow diversion device and a bladeless fan, the flow diversion device comprises: a flow diverter, which diverts and dredges the airflow; an airflow generator, which is used to generate high-speed airflow; a sealing component, which is annular; and a supporting member, which is tightly connected and matched with the sealing component; wherein the flow diverter, the airflow generator, the sealing component and the supporting member are coaxially arranged, the flow diverter is located above the airflow generator, the sealing component is located between the flow diverter and the airflow generator, and the supporting member wraps the sealing component. The flow diverter device of this case makes the airflow through the diverter channel smooth and uniform, and prevents the airflow from leaking outward and generating noise.

Description

Technical Field

[0001] The invention relates to the field of bladeless fans, and in particular to a flow splitter and a bladeless fan. Background Art

[0002] In existing bladeless fans, after the airflow is generated by the airflow generator, the airflow is freely guided upward to the nozzle and emitted outward. The airflow will generate turbulence in the diverter, thereby generating noise.

[0003] In view of this, it is necessary to develop a flow splitter and a bladeless fan to solve the above problems. Summary of the invention

[0004] In view of the deficiencies existing in the prior art, the object of the present invention is to provide a diverter device and a bladeless fan, which are provided with a diverter for diverting and clearing the airflow, an airflow generator for generating high-speed airflow, a sealing assembly and a supporting member; the diverter, the airflow generator, the sealing assembly and the supporting member are coaxially arranged to fix the diverter device in the bladeless fan; the diverter includes a first member, which is hollow inside and a second member, which is recessed inside and coaxially arranged on the first member; wherein, at least two annular diverter ports are provided on the upper end of the second member, and the first member and the second member are arranged opposite to each other to form a diverter space to guide the airflow to the diverter channel, so that the airflow through the diverter channel is smooth and uniform, and the airflow is prevented from leaking outward to generate noise.

[0005] In order to achieve the above-mentioned purpose and other advantages according to the present invention, a flow dividing device and a bladeless fan are provided, comprising:

[0006] A flow divider is used to divide and dredge the air flow;

[0007] An airflow generator for generating high-speed airflow;

[0008] a sealing assembly in the form of an annulus; and

[0009] A supporting member, which is tightly connected and matched with the sealing assembly;

[0010] The diverter, the airflow generator, the sealing assembly and the supporting member are coaxially arranged, the diverter is located above the airflow generator, the sealing assembly is located between the diverter and the airflow generator, and the supporting member wraps the sealing assembly.

[0011] Preferably, the diverter comprises:

[0012] A first member having a hollow interior; and

[0013] A second member, which is recessed inside and coaxially disposed on the first member;

[0014] The upper end of the second component is provided with at least two annular diversion openings, and the first component and the second component are arranged opposite to each other to form a diversion space.

[0015] Preferably, the first member is provided with a first curved member, and the first curved member wraps the second member;

[0016] The first curved member extends downward to form a connecting part.

[0017] Preferably, the second component is provided with a second curved component, and the bottom of the second curved component is provided with a groove, and a baffle column is provided inside the groove.

[0018] Preferably, the outer side of the support member extends axially downward to form an external flange;

[0019] The inner side of the support member extends axially downward to form an inner flange, and the lower end of the inner flange is connected to a support skirt;

[0020] The upper part of the supporting skirt and the inner side of the supporting member form a slot.

[0021] Preferably, the sealing assembly comprises:

[0022] A first sealing ring, wherein upper and lower ends of the first sealing ring extend inwardly along the center of the first sealing ring without contacting each other, forming a claw structure;

[0023] The upper portion of the outer side of the first sealing ring is provided with T-shaped buckle structures arranged in a circumferential array;

[0024] The lower portion of the outer side of the first sealing ring is connected to a lower flange, and a certain gap is provided between the lower flange and the first sealing ring to form a groove;

[0025] Among them, the longitudinal part of the T-shaped snap-fit ​​structure is integrated with the first sealing ring; the snap-fit ​​groove is adapted to the T-shaped snap-fit ​​structure on the first sealing ring, and the lower part of the supporting skirt at least partially overlaps with the groove of the first sealing ring.

[0026] Preferably, the sealing assembly comprises:

[0027] A second sealing ring, wherein the bottom surface of the diverter has a groove adapted to fit the upper portion of the second sealing ring;

[0028] At least two supporting feet are provided at the lower part of the second sealing ring, and the supporting feet are connected to the upper end surface of the airflow generator.

[0029] Preferably, an annular sealing ring is provided on the periphery of the annular diversion port.

[0030] Preferably, the airflow generator comprises:

[0031] A power chamber, which provides kinetic energy for generating high-speed airflow;

[0032] An impeller is coaxially arranged below the power chamber;

[0033] The drainage tube is hollow inside and open at both ends to form an upper opening and a lower opening respectively;

[0034] Wherein, the power chamber and the impeller are arranged in the drainage pipe to form an annular drainage cavity.

[0035] Furthermore, the present invention also discloses a bladeless fan, which includes any of the aforementioned diversion devices.

[0036] Compared with the prior art, the present invention has the following beneficial effects: a diverter for diverting and unblocking airflow, an airflow generator for generating high-speed airflow, a sealing assembly and a supporting member are provided; the diverter, the airflow generator, the sealing assembly and the supporting member are coaxially arranged to fix the diverting device in the bladeless fan; the diverter includes a first member, which is hollow inside, and a second member, which is recessed inside and coaxially arranged on the first member; wherein at least two annular diverting ports are provided at the upper end of the second member, and the first member and the second member are arranged opposite to each other to form a diversion space to guide the airflow to the diversion channel, so that the airflow passing through the diversion channel is smooth and uniform, and the airflow is prevented from leaking outward to generate noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A perspective view of a bladeless fan according to an embodiment of the present invention;

[0038] Figure 2 A perspective view of a flow divider according to an embodiment of the present invention;

[0039] Figure 3 A perspective view of a separation device of a flow splitter according to an embodiment of the present invention;

[0040] Figure 4 A top view of a first curved member of a flow splitter according to an embodiment of the present invention;

[0041] Figure 5 A top view of a second curved member of a flow splitter according to an embodiment of the present invention;

[0042] Figure 6 A front cross-sectional view of a flow divider according to an embodiment of the present invention;

[0043] Figure 7 A front cross-sectional view of a support member according to an embodiment of the present invention;

[0044] Figure 8 A cross-sectional view of a first sealing ring of a sealing assembly according to an embodiment of the present invention;

[0045] Fig. 9 A three-dimensional diagram of a first sealing ring of a sealing assembly according to an embodiment of the present invention;

[0046] Fig.10 A cross-sectional view of a first sealing ring of a sealing assembly according to an embodiment of the present invention

[0047] Fig.11 A partial cross-sectional view of a bladeless fan according to an embodiment of the present invention;

[0048] Fig.12 FIG. 4 is a cross-sectional view of an airflow generator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0049] The present invention will be further described in detail below in conjunction with the accompanying drawings, and the above-mentioned and other objects, features, aspects and advantages of the present invention will become more obvious, so that those skilled in the art can implement them according to the description.

[0050] In the drawings, the shapes and dimensions may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or like components.

[0051] In the following description, words such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are defined relative to the structure shown in the drawings. In particular, "height" is equivalent to the dimension from top to bottom, "width" is equivalent to the dimension from left to right, and "depth" is equivalent to the dimension from front to back. They are relative concepts and may change accordingly according to their different positions and different usage states. Therefore, these or other directions should not be interpreted as restrictive terms.

[0052] Terms related to attachment, coupling, and the like (eg, "connected" and "attached") refer to either a fixed or attached relationship between structures, either directly or indirectly, and either movable or rigid attachments or relationships, unless expressly stated otherwise, of the structures to one another through intermediate structures.

[0053] According to one embodiment of the present invention, Figure 1 As shown in FIG. 1 , it can be seen that the diversion device includes:

[0054] The flow divider 10 divides and dredges the air flow;

[0055] An airflow generator 20, which is used to generate a high-speed airflow;

[0056] a sealing assembly 30 which is annular; and

[0057] A support member 40, which is tightly connected and matched with the sealing assembly;

[0058] The diverter 10 , the airflow generator 20 , the sealing assembly 30 and the supporting member 40 are coaxially arranged, the diverter 10 is located above the airflow generator 20 , the sealing assembly 30 is located between the diverter 10 and the airflow generator 20 , and the supporting member 40 wraps the sealing assembly 30 .

[0059] Reference now Figure 2 , Figure 3 It can be seen that the diverter 10 comprises:

[0060] A first member 110 having a hollow interior; and

[0061] A second member 120, which is recessed inside and coaxially disposed on the first member;

[0062] Among them, Figure 5 As shown, at least two annular diversion openings 121 are provided at the upper end of the second component 120 , and the first component 110 and the second component 120 are arranged opposite to each other to form a diversion space.

[0063] Reference Figure 4 , the first member 110 is provided with a first curved member 111, and the first curved member 111 wraps the second member 120;

[0064] The first curved member 111 extends downward to form a connecting component 113 .

[0065] The second member 120 is provided with a second curved member 111. Figure 6 The bottom of the second curved member 111 is provided with a groove 123, in which a baffle column 124 is provided. The air flow in the bladeless fan body enters the diverter 10 from the inner side of the body through the airflow generator 20, and is separated into at least two annular ports 121 in the diverter channel of the diverter 10. The annular diverter port 121 extends into and is closely attached to the diverter channel 50, so that the air flow enters the diverter channel 50 smoothly, avoiding the air flow from quickly entering the narrow nozzle to form noise, thereby improving the user experience.

[0066] Now refer to Figure 7The outer side of the support member 40 extends axially downward to form an outer flange 410;

[0067] The inner side of the support member 40 extends axially downward to form an inner flange 420 , and the lower end of the inner flange 420 is connected to a support skirt 430 ;

[0068] The upper portion of the supporting skirt 430 and the inner side of the supporting member 40 form a slot 431 .

[0069] The sealing assembly 30 comprises:

[0070] Now refer to Figure 8 , Fig. 9 It can be seen that the first sealing ring 310, the upper and lower ends of the first sealing ring 310 extend inward along the center of the first sealing ring 310 without contacting each other, forming a claw structure 311;

[0071] The upper portion of the outer side of the first sealing ring 310 is provided with T-shaped buckle structures 314 arranged in a circumferential array;

[0072] The lower portion of the outer side of the first sealing ring 310 is connected to a lower flange 3122, and a certain gap is provided between the lower flange 312 and the first sealing ring 310, forming a groove 313;

[0073] Among them, the longitudinal part of the T-shaped snap structure 314 is integrated with the first sealing ring 310; the snap groove 431 is adapted to the T-shaped snap structure 314 on the first sealing ring 310, and the lower part of the support skirt 430 at least partially overlaps with the groove 313 of the first sealing ring 310.

[0074] The sealing assembly 30 comprises:

[0075] Depend on Fig.10 , Fig.11 It can be obtained that the second sealing ring 320, the lower bottom surface of the diverter 10 has a groove 125, which is adapted to the upper part of the second sealing ring 320;

[0076] The lower part of the second sealing ring 320 is provided with at least two supporting feet 321, and the supporting feet 321 are connected to the upper end surface of the airflow generator 20. The upper part of the second sealing ring 320 can ensure its close connection with the diverter 10; the diverter 10 is subjected to the vibration transmission of the airflow generator 20. Due to the setting of the supporting feet 321 at the lower part of the second sealing ring 320, the supporting feet 321 will be deformed due to the vibration, which has a certain effect of alleviating the vibration and improving the service life of the diverter 10. .

[0077] Among them, the first sealing ring 310 is used to seal the gap between the airflow generator 20 and the outer side of the diverter 10, and the second sealing ring 320 is used to seal the gap between the airflow generator 20 and the inner side of the diverter 10; the supporting structure 40 is connected to the first sealing ring 310 to realize that the sealing shock absorbing device is fixed in the bladeless fan.

[0078] Reference now Figure 1 An annular sealing ring 331 is provided on the periphery of the annular diversion port 121 .

[0079] The shape of the diverter channel 50 is changeable and has multiple angles. Although the annular diverter port 121 extends into and fits tightly against the diverter channel 50, gaps will be generated due to the multiple angles of the diverter channel 50. The air flow entering from the annular diverter port 121 returns to the body of the bladeless fan, causing the problem of insufficient intensity of the ejected air flow and may also cause noise. An annular sealing ring 331 is provided on the periphery of the annular diverter port 121. The annular sealing ring 331 has multiple angles, and the inner side fits tightly against the annular diverter port 121, and the outer side fits tightly against the diverter channel 50, which can effectively block gas reflux and prevent the air flow from spreading around, which not only improves the strength of the air, but also reduces noise, further improving the user experience.

[0080] In a specific embodiment, the arrangement of the annular diversion openings 121 can be that at least two of the annular diversion openings 121 are arranged side by side with intervals on the second component 120, or they can be arranged in a circular array around the central axis of the second component 120; wherein the number of the first curved components 111 of the first component 110 and the second curved components 122 on the second component 120 is consistent with the number of the annular diversion openings 121 provided.

[0081] Reference now Fig.12 It can be seen that the airflow generator 20 includes:

[0082] The power chamber 210 provides kinetic energy for generating high-speed airflow; an impeller driver 250 is disposed in the power chamber 210 .

[0083] The impeller 230 is coaxially arranged below the power chamber, and the power output end of the impeller driver 250 is transmission-connected to the impeller 230 , so that the impeller 230 is driven by the impeller driver 250 to rotate around the axis of the drainage tube 220 .

[0084] The drainage tube 220 is hollow inside and open at both ends to form an upper opening and a lower opening respectively; the upper opening corresponds to the connecting component 113 of the diverter 10, but because the first sealing ring 310 is located between the diverter 10 and the airflow generator 20, the upper opening of the drainage tube 220 is not in direct contact with the connecting component 113, further reducing the vibration transmission of the airflow generator 20.

[0085] The power chamber 210 and the impeller 230 are disposed in the drainage pipe 220 to form an annular drainage chamber 240 .

[0086] In a specific embodiment, the air flow is accelerated under the action of the impeller 230 in the airflow generator 20, and the rotation of the impeller generates negative pressure in the annular drainage chamber 240. The air flow flows upward along the annular drainage chamber 240, enters the diverter 10, flows out from the annular diversion port 121 into the diversion channel 50, and is discharged from the bladeless fan.

[0087] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention will be obvious to those skilled in the art.

[0088] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A flow diversion device, characterized in that: include: A flow divider (10) is used to divide and dredge the air flow; An airflow generator (20) for generating a high-speed airflow; a sealing assembly (30) which is annular; and A supporting member (40) which is tightly connected and matched with the sealing assembly (30); The flow splitter (10), the airflow generator (20), the sealing assembly (30) and the supporting member (40) are coaxially arranged, the flow splitter (10) is located above the airflow generator (20), the sealing assembly (30) is located between the flow splitter (10) and the airflow generator (20), and the supporting member (40) wraps the sealing assembly (30); The airflow generator (20) comprises: A power chamber (210) which provides kinetic energy for generating high-speed airflow; An impeller (230) is coaxially disposed below the power chamber (210); The drainage tube (220) is hollow inside and has upper and lower ends open to form an upper opening and a lower opening respectively; Wherein, the power chamber (210) and the impeller (230) are arranged in the drainage pipe (220) to form an annular drainage chamber (240); The outer side of the support member (40) extends axially downward to form an outer flange (410); The inner side of the support member (40) extends axially downward to form an inner flange (420), and the lower end of the inner flange (420) is connected to a support skirt (430); The upper portion of the support skirt (430) and the inner side of the support member (40) form a slot (431).

2. The flow dividing device according to claim 1, characterized in that: The diverter (10) comprises: A first member (110) having a hollow interior; and A second member (120) having a recessed interior and coaxially disposed on the first member (110); The upper end of the second component (120) is provided with at least two annular flow diversion openings (121), and the first component (110) and the second component (120) are arranged opposite to each other to form a flow diversion space.

3. The flow dividing device according to claim 2, characterized in that: The first member (110) is provided with a first curved member (111), and the first curved member (111) wraps the second member (120); The first curved member (111) extends downward to form a connecting component (113).

4. The flow dividing device according to claim 2, characterized in that: The second component (120) is provided with a second curved component (122), and a groove is provided at the bottom of the second curved component (122), and a baffle column (124) is provided inside the groove.

5. The flow dividing device according to claim 1, characterized in that: The sealing assembly (30) comprises: A first sealing ring (310), wherein upper and lower ends of the first sealing ring (310) extend inwardly along the center of the first sealing ring (310) without contacting each other, forming a claw structure (311); The upper portion of the outer side of the first sealing ring (310) is provided with T-shaped buckle structures (314) arranged in a circumferential array; The lower portion of the outer side of the first sealing ring (310) is connected to a lower flange (312), and a certain gap is provided between the lower flange (312) and the first sealing ring (310), forming a groove (313); Wherein, the longitudinal portion of the T-shaped buckle structure (314) and the first sealing ring (310) are integrated; The snap groove (431) is adapted to the T-shaped snap-fit ​​structure (314) on the first sealing ring (310), and the lower portion of the supporting skirt (430) at least partially overlaps with the groove (313) of the first sealing ring (310).

6. The flow dividing device according to claim 1, characterized in that: The sealing assembly (30) comprises: a second sealing ring (320); the bottom surface of the flow divider (10) has a groove (125) adapted to fit the upper portion of the second sealing ring (320); At least two supporting feet (321) are provided at the lower part of the second sealing ring (320), and the supporting feet (321) are connected to the upper end surface of the airflow generator (20).

7. The flow dividing device according to claim 2, characterized in that: An annular sealing ring (331) is provided on the periphery of the annular diversion port (121).

8. A bladeless fan, characterized in that: It comprises the flow dividing device according to any one of claims 1 to 7.

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