CN110821860A

CN110821860A - Sealing damping device and bladeless fan

Info

Publication number: CN110821860A
Application number: CN201911089804.2A
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: 2020-02-21

Abstract

The invention discloses a sealing damping device and a bladeless fan, wherein the sealing damping device is provided with an airflow generating mechanism for generating high-speed airflow; the shunting mechanism disperses and unblocks the high-speed airflow; and a filter mechanism that keeps air entering the bladeless fan clean. According to the sealing damping device, the annular sealing components are arranged on the outer side and the inner side between the airflow generating mechanism and the shunting mechanism to improve the internal sealing property of the whole machine and reduce the efficiency loss; prevent vibrations conduction, reduce complete machine noise and improve user experience.

Description

Sealing damping device and bladeless fan

Technical Field

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

Background

For a bladeless fan, air volume and air speed are important indexes for measuring product quality, and the sealing performance between an impeller assembly and parts connected with guide vanes of the impeller assembly is an important performance for influencing the efficiency of the whole machine and related product indexes.

In view of the above, it is necessary to develop a sealing and damping device 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 sealing damping device, which comprises: by providing an airflow generating mechanism for generating a high-speed airflow; the shunting mechanism disperses and unblocks the high-speed airflow; the filtering mechanism keeps the air entering the bladeless fan clean, and annular sealing components are arranged on the outer side and the inner side between the airflow generating mechanism and the flow dividing mechanism to improve the internal sealing property of the whole machine and reduce the efficiency loss; prevent vibrations conduction, reduce complete machine noise and improve user experience.

To achieve the above objects and other advantages in accordance with the present invention, there is provided a sealing shock-absorbing device including:

an airflow generating mechanism for generating a high-speed airflow;

the shunting mechanism disperses and unblocks the high-speed airflow;

a sealing assembly in the shape of a ring; and

the filtering mechanism is hollow inside and forms an accommodating space;

the filtering mechanism wraps the airflow generating mechanism, the shunting mechanism and the sealing assembly are coaxially arranged, and the sealing assembly is arranged between the airflow generating mechanism and the shunting mechanism.

Preferably, the airflow generation mechanism includes:

a power chamber in which an impeller driver is arranged;

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;

an impeller coaxially disposed below the power chamber;

the power chamber and the impeller are arranged in the drainage tube to form an annular drainage cavity, and the impeller is in transmission connection with the power output end of the impeller driver.

Preferably, at least two first guide vanes are arranged in the annular drainage cavity.

Preferably, the separation; reposition of redundant personnel mechanism includes:

a first bending member having a hollow interior;

a second curved member internally recessed and coaxially disposed on the first curved member;

at least two U-shaped notches are arranged at the upper ends of the side walls of the first bending component and the second bending component at intervals respectively to form at least two shunting ports;

the U-shaped notch of the first bending member corresponds in position to the U-shaped notch of the bending member of the second bending member.

Preferably, the lower peripheral side of said first curved member extends downwardly to form a peripheral skirt;

and a gap is formed between the peripheral skirt part and the lower edge of the first bending component to form a clamping groove, and clamping grooves which are arranged in a circumferential array are arranged at intervals on the outer side of the peripheral skirt part.

Preferably, the upper part of the side wall of the second bending component is provided with meshes which are arranged in an array;

through holes are formed in the bottom surface of the second bending component at intervals, and a buffer assembly is arranged in each through hole;

the edge of the bottom surface of the second bending component is provided with a groove.

Preferably, the first bending member and the second bending member are provided with a second guide vane at an interval;

the second guide vane is integrally formed with the first curved member and the second curved member.

Preferably, the seal assembly comprises:

the upper end surface of the first sealing ring is inwards recessed to form a first clamping groove, and the lower end of the inner ring of the first sealing ring upwards and inwards extends along the center to form a clamping jaw structure;

the upper part of the outer side of the first sealing ring is provided with bulges which are arranged in a circumferential array;

wherein the protrusion is matched with the clamping groove on the peripheral skirt portion.

Preferably, the seal assembly comprises:

and the upper part of the second sealing ring is matched with the groove of the second bending component, the lower part of the second sealing ring is at least provided with two supporting legs, and the supporting legs are connected with the upper end surface of the airflow generation mechanism.

Preferably, the seal assembly comprises:

the damping ring is arranged at the lower part of the outer side of the drainage tube;

wherein, its inner circle is equipped with at least three shock attenuation jack catch, respectively is equipped with a barb under every shock attenuation jack catch, the periphery of barb is at least partly equipped with the spring.

Preferably, the shock absorption jaw is provided with an upper jaw head and a lower jaw head, and the jaw heads are provided with triangular anti-skid protrusions;

the face of the shock absorption claw towards the shock absorption ring is provided with at least two clamping strips.

Preferably, the seal assembly comprises:

the lower end surface of the connecting ring is inwards sunken to form a connecting groove;

the lower end face of the inner circle of the connecting ring extends downwards and inwards along the center to form a connecting skirt portion.

Preferably, at least three bosses are arranged on the inner wall of the filter assembly at intervals;

wherein, the damping ring is arranged on the boss in a frame mode.

Preferably, the upper end of the filter assembly has a partial diameter smaller than the diameter of the filter assembly body to form a circular insert.

Wherein, the circular plug-in components are matched with the connecting grooves.

Furthermore, the present disclosure also discloses a bladeless fan, which includes any one of the above sealing and damping devices.

Compared with the prior art, the invention has the beneficial effects that: by providing an airflow generating mechanism for generating a high-speed airflow; the shunting mechanism disperses and unblocks the high-speed airflow; the filtering mechanism keeps the air entering the bladeless fan clean, and annular sealing components are arranged on the outer side and the inner side between the airflow generating mechanism and the flow dividing mechanism to improve the internal sealing property of the whole machine and reduce the efficiency loss; prevent vibrations conduction, reduce complete machine noise and improve user experience.

Drawings

Fig. 1 is a sectional view of a bladeless fan according to an embodiment of the present invention;

fig. 2 is a front sectional view of an air flow generating mechanism of a sealing damper device according to an embodiment of the present invention;

fig. 3 is a front view of a shunt mechanism of the sealing damper according to an embodiment of the present invention;

fig. 4 is a front sectional view of a shunt mechanism of the sealing damper according to an embodiment of the present invention;

fig. 5 is a plan view of a shunt mechanism of the sealing damper according to an embodiment of the present invention;

FIG. 6 is a top view of a first seal ring of a seal assembly of the proposed seal cushioning apparatus according to one embodiment of the present invention;

FIG. 7 is a front view of a first seal ring of a seal assembly of the proposed seal cushioning apparatus according to one embodiment of the present invention;

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

FIG. 9 is a front cross-sectional view of a second seal ring of a seal assembly of the proposed seal cushioning apparatus, according to one embodiment of the present invention;

FIG. 10 is a top view of a damper ring of a seal assembly of the proposed seal damper according to one embodiment of the present invention;

FIG. 11 is a perspective view of a damping ring of a seal assembly of the proposed seal damping device according to one embodiment of the present invention;

FIG. 12 is a front cross-sectional view of a damper ring of a seal assembly of the proposed seal damper according to one embodiment of the present invention;

FIG. 13 is a perspective view of a shock absorbing jaw of a shock absorbing collar of a seal assembly of the proposed seal shock absorber according to one embodiment of the present invention;

FIG. 14 is a perspective view of a shock absorbing jaw of a shock absorbing collar of a seal assembly of the proposed seal shock absorber according to one embodiment of the present invention;

FIG. 15 is a front cross-sectional view of a coupling ring of a seal assembly of the proposed seal damper according to one embodiment of the present invention;

fig. 16 is a front sectional view of a filter mechanism of the sealing damper device according to an 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 and 2, it can be seen that the sealing damper device includes:

an airflow generation mechanism 10 for generating a high-speed airflow;

a flow dividing mechanism 20 for dispersedly dredging the high-speed airflow;

a seal assembly 30 in the form of a ring; and

a filter mechanism 40 that keeps air entering the bladeless fan clean;

the filtering mechanism 40 wraps the airflow generating mechanism 10, the shunting mechanism 20 and the sealing assembly 30 are coaxially arranged, and the sealing assembly 30 is arranged between the airflow generating mechanism 10 and the shunting mechanism 20.

The airflow generation mechanism 10 includes:

a power chamber 110 in which an impeller driver 111 is provided;

a drainage tube 120 which is hollow inside and has both open upper and lower ends to form an upper opening and a lower opening, respectively;

an impeller 130 coaxially disposed below the power chamber 110;

wherein, the power chamber 110 and the impeller 130 are arranged in the draft tube 120 to form an annular draft tube 121, and the impeller 130 is in transmission connection with the power output end of the impeller driver 111, so that the impeller 130 is driven by the impeller driver 111 to rotate around the axis of the draft tube 120.

The impeller 130 is disposed downstream of the gas flow within the draft tube 120.

A fixing component for fixedly mounting the power chamber 110 is fixedly connected between the power chamber 110 and the drainage tube 120, and the fixing component is arranged at the upstream of the air flow in the drainage tube 120.

The fixing component is at least two first guide vanes 122 fixedly connected between the power chamber 110 and the draft tube 120, in a specific embodiment, the impeller 130 is located at a lower opening of the draft tube 120, and the first guide vanes 122 are located at an upper opening of the draft tube 120.

The first guide vane 122 can correct the flowing direction of the air flow which is driven by the impeller 130 to deflect, the deflecting direction of the impeller 130 enables the air flow to flow upwards in a vortex shape clockwise or anticlockwise, the deflecting direction of the first guide vane 122 is opposite to the deflecting direction of the impeller 130, and the air flow rotating clockwise or anticlockwise is guided by the first guide vane 122 in the opposite deflecting direction, so that the flowing direction of the corrected air flow is consistent with the axial direction of the draft tube 120, the flowing smoothness of the air flow is improved, and the generation of noise is reduced.

The shunt mechanism 20 includes:

a first bending member 210 having a hollow inside;

a second bending member 220 internally recessed and coaxially disposed on the first bending member 210;

at least two U-shaped notches are respectively arranged at the upper ends of the side walls of the first bending member 210 and the second bending member 220 at intervals so as to form at least two branch flow ports;

the U-shaped notch of the first bending member 210 corresponds to the U-shaped notch of the bending member of the second bending member 220, the first bending member 210 and the second bending member 220 are oppositely arranged to form a diversion passage, air flow in the bladeless fan body enters the diversion mechanism 20 from the inside of the body through the impeller driver 111, the first bending member 210 extends into and clings to an inner casing of the diversion passage 225, the second bending member 220 extends into and clings to an outer casing of the diversion passage 225, so that the air flow smoothly enters the diversion passage 225, the air flow is prevented from rapidly entering a long and narrow nozzle to form noise, and user experience is improved.

The lower side of the outer periphery of the first bending member 210 extends downward to form a peripheral skirt 211;

a gap is formed between the peripheral skirt 211 and the lower edge of the first bending member 210 to form a clamping groove 212, and clamping grooves 2111 arranged in a circumferential array are arranged at intervals outside the peripheral skirt 211.

The upper part of the side wall of the second bending member 220 is provided with meshes which are arranged in an array;

at least four buffer assemblies 223 are arranged on the central bottom surface of the second bending member 220 at intervals, and each buffer assembly 223 comprises a buffer through hole 2231 and a buffer rod 2232;

wherein the buffering through hole 2231 is integrally formed with the shunt 10.

The upper part of the buffer rod 2232 is in a barb shape, which can prevent the flow dividing mechanism 20 from slipping off due to the vibration of the airflow generating mechanism 10 during the operation;

at least part of the lower portion of the buffering rod 2232 is a spring, so that the vibration of the shunt mechanism 20 is further reduced, and the service life of the shunt mechanism is prolonged.

The bottom edge of the second bending member 220 is provided with a groove 221.

The first bending member 210 and the second bending member 220 are provided with a second guide vane 222 at an interval;

the second guide vane 222 is integrally formed with the first curved member 210 and the second curved member 220, so that it is convenient for a user to disassemble; the second guide vane 222 is opposite to the deflection direction of the first guide vane 122, so that the airflow is deflected again, the energy of the airflow is reduced, the wind stiffness is reduced, the wind blown out of the bladeless fan is gentle, and after the airflow enters the diversion channel, part of the airflow flows out of the diversion channel through the meshes to disperse the airflow, so that the wind power is gentle. And the user experience is improved.

In a specific embodiment, the U-shaped notches may be arranged in a manner that at least two U-shaped notches are arranged on the second member 20 side by side at intervals, or may be arranged in a circumferential array around a central axis of the second member 20; wherein the number of the first bending members 110 of the first member 10 and the second bending members 220 of the second member 20 is the same as the number of the provided U-shaped notches.

The seal assembly 30 includes:

first sealing washer 310, its upper end is inwards sunken to form first draw-in groove 311, first draw-in groove 311 with the peripheral skirt 211 of reposition of redundant personnel mechanism 20 suits, strengthens airflow generation mechanism 10 with the steadiness of reposition of redundant personnel mechanism 20, the inner circle lower extreme of first sealing washer 310 upwards inwards extends along the center and forms a jack catch structure 312, the cross-sectional area of jack catch structure 312 jack catch is by being the trend of progressively diminishing along its extending direction, makes jack catch structure 312 with airflow generation mechanism 10 closely laminates better, has guaranteed airflow generation mechanism 10 with the leakproofness between the reposition of redundant personnel mechanism 20, the production of noise abatement.

The upper part of the outer side of the first sealing ring 310 is provided with protrusions 313 arranged in a circumferential array;

the protrusion 313 is matched with the clamping groove 2111 on the peripheral skirt 211, so that the connection between the airflow generating mechanism 10 and the flow dividing mechanism 20 is tighter, and the tightness between the airflow generating mechanism 10 and the flow dividing mechanism 20 is improved.

In a specific embodiment, the positions of the locking slot 2111 and the protrusion 313 may be interchanged or used in a crossed manner.

The seal assembly 30 includes:

the upper part of the second sealing ring 320 is adapted to the groove 221 of the second bending member 220, 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 face of the airflow generating mechanism 10, and the upper part of the second sealing ring 320 can ensure the tight connection with the flow dividing mechanism 20; the upper and lower vibrations that reposition of redundant personnel mechanism 20 produced because of the vibrations conduction of airflow generation mechanism 10 are because the lower part of second sealing washer 320 the setting of supporting legs 321, supporting legs 321 can produce deformation because of vibrations, plays certain alleviating effect to vibrations, has improved reposition of redundant personnel mechanism 20's life.

The first sealing ring 310 and the second sealing ring 320 prevent the flow dividing mechanism 20 and the airflow generating mechanism 10 from directly contacting, and the first sealing ring 310 and the second sealing ring 320 block the vibration transmission of the airflow generating mechanism 10, so that the flow dividing mechanism 20 can be kept stable; the first and second seal rings 310 and 320 are preferably made of rubber.

The seal assembly 30 includes:

a damping ring 330 provided at an outer lower portion of the draft tube 120;

wherein, its inner circle is equipped with at least three shock attenuation jack catches 331, and each is equipped with an barb 332 respectively under shock attenuation jack catch 331, the periphery of barb 332 is equipped with spring 3321 at least partially, interior ring up end is equipped with at least three foraminiferous rib 333.

The shock absorption claw 331 is provided with an upper claw head 3311 and a lower claw head 3311, the claw head 3311 is provided with a triangular anti-slip boss 3312, the triangular anti-slip boss 3312 is in close contact with the outer wall of the drainage tube 120, and the shock of the airflow generation mechanism 10 is slowed down.

The damping claw 331 is provided with at least two clamping strips 3313 on the surface facing the damping ring 330, a through hole 3314 is provided above the clamping strips 3313, and the through hole 3314 is hinged with the rib part 333 with a hole. When the damping claw 331 is close to the damping ring 330, the clamping strip 3313 is pressed by the damping ring 330, and the root of the clamping strip 3313 rotates downwards until the root of the clamping strip 3313 extends into the damping ring 330 for clamping.

The seal assembly 30 includes:

a connection ring 340 having a lower end surface recessed inward to form a connection groove 341;

the lower end surface of the inner circle of the connecting ring 340 extends downwards and inwards along the center to form a connecting skirt 342.

At least three bosses 410 are arranged on the inner wall of the filter assembly 40 at intervals;

wherein, the damping ring 330 is mounted on the boss 410.

The upper end of the filter assembly 40, partially smaller in diameter than the main body of the filter assembly 40, forms a circular insert 420.

The circular insert 420 is adapted to the connection groove 341, and the connection skirt 342 is connected to the airflow generating mechanism 10, so as to ensure the stability of the airflow generating mechanism 10 in the accommodating space.

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 sealed cushioning device, comprising:

an airflow generating mechanism (10) for generating a high-speed airflow;

a diversion mechanism (20) that dispersively unblocks the high velocity air stream;

a seal assembly (30) in the form of a ring; and

a filter mechanism (40) which is hollow inside and forms an accommodating space;

the filtering mechanism (40) wraps the airflow generating mechanism (10), the shunting mechanism (20) and the sealing assembly (30) are coaxially arranged, and the sealing assembly (30) is arranged between the airflow generating mechanism (10) and the shunting mechanism (20).

2. The sealing and cushioning device according to claim 1, characterized in that said air flow generating means (10) comprise:

a power chamber (110) in which an impeller driver (111) is provided;

a drainage tube (120) which is hollow inside and has both open upper and lower ends to form an upper opening and a lower opening, respectively;

an impeller (130) disposed coaxially below the power chamber (110);

the power chamber (110) and the impeller (130) are arranged in the draft tube (120) to form an annular draft tube cavity (121), and the impeller (130) is in transmission connection with the power output end of the impeller driver (111).

3. The sealing and shock-absorbing device as claimed in claim 2, wherein at least two first guide vanes (122) are provided in the annular drainage chamber (121).

4. The seal cushioning apparatus of claim 1, wherein said separation; the flow distribution mechanism (20) includes:

a first bending member (210) having a hollow inside;

a second curved member (220) internally recessed and coaxially disposed on the first curved member (210);

at least two U-shaped notches are respectively arranged at the upper ends of the side walls of the first bending component (210) and the second bending component (220) at intervals so as to form at least two shunting ports;

the U-shaped notch of the first bending member (210) corresponds in position to the U-shaped notch of the bending member of the second bending member (220).

5. The seal cushioning apparatus of claim 4,

the lower side of the periphery of the first bending component (210) extends downwards to form a peripheral skirt part (211);

wherein, the peripheral skirt part (211) and the lower edge of the first bending component (210) are provided with a gap to form a clamping groove (212), and clamping grooves (2111) which are arranged in a circumferential array are arranged at intervals outside the peripheral skirt part (211).

6. The seal cushioning apparatus of claim 4,

the upper part of the side wall of the second bending component (220) is provided with meshes which are arranged in an array;

through holes (223) are formed in the bottom surface of the second bending component (220) at intervals, and a buffer component (224) is arranged in each through hole (223);

the edge of the bottom surface of the second bending component (220) is provided with a groove (221).

7. The seal cushioning device according to claim 1, characterized in that the first curved member (210) is provided with a second guide vane (222) spaced apart from the second curved member (220);

the second guide vane (222) is integrally formed with the first curved member (210) and the second curved member (220).

8. The seal cushioning device of claim 1, characterized in that said seal assembly (30)

The method comprises the following steps:

the upper end of the first sealing ring (310) is inwards recessed to form a first clamping groove (311), and the lower end of the inner ring of the first sealing ring (310) upwards and inwards extends along the center to form a claw structure (312);

the upper part of the outer side of the first sealing ring (310) is provided with protrusions (313) which are arranged in a circumferential array;

wherein the protrusion (313) is matched with the clamping groove (2111) on the peripheral skirt part (211).

9. The seal cushioning device of claim 1, characterized in that said seal assembly (30) comprises:

the upper part of the second sealing ring (320) is matched with the groove (221) of the second bending component (220), the lower part of the second sealing ring (320) is at least provided with two supporting legs (321), and the supporting legs (321) are connected with the upper end face of the airflow generating mechanism (10).

10. The seal cushioning device of claim 1, characterized in that said seal assembly (30) comprises:

a damping ring (330) provided at an outer lower portion of the draft tube (120);

wherein, its inner circle is equipped with at least three shock attenuation jack catch (331), and each is equipped with an barb (332) under each shock attenuation jack catch (331), the periphery of barb (332) is equipped with spring (3321) at least partially.

11. The sealing and shock absorbing device as claimed in claim 10, wherein the shock absorbing jaw (331) is provided with upper and lower jaw heads (3311), and the jaw head (3311) is provided with a triangular anti-slip protrusion (3312);

the surface of the shock absorption claw (331) facing the shock absorption ring (330) is provided with at least two clamping strips (3313).

12. The seal cushioning device of claim 1, characterized in that said seal assembly (30) comprises:

a connection ring (340) having a lower end surface recessed inward to form a connection groove (341);

the lower end surface of the inner circle of the connecting ring (340) extends downwards and inwards along the center to form a connecting skirt part (342).

13. The sealing and shock absorbing device as claimed in claim 1, wherein at least three bosses (410) are provided at intervals on the inner wall of the filter assembly (40);

wherein, the damping ring (330) is arranged on the boss (410).

14. The hermetic shock absorber device according to claim 1, wherein the upper end of the filter assembly (40) has a partial diameter smaller than the diameter of the body of the filter assembly (40) to form a circular insert (420)

Wherein the circular insert (420) is adapted to the connection groove (341).

15. A bladeless fan comprising a sealed damping device according to any one of claims 1-14.