WO2021088677A1

WO2021088677A1 - Bladeless fan and assembly method therefor

Info

Publication number: WO2021088677A1
Application number: PCT/CN2020/123891
Authority: WO
Inventors: 俞浩
Original assignee: 追觅科技(上海)有限公司
Priority date: 2019-11-08
Filing date: 2020-10-27
Publication date: 2021-05-14

Abstract

A bladeless fan and an assembly method therefor, the bladeless fan comprising: a filter device (10) having a hollow interior and forming an accommodation space (150); a base (20) arranged directly under the filter device (10); a spray head device (30) arranged directly above the filter device (10); and an airflow-generating device (40) arranged in the accommodating space (150) formed by the filter device (10), wherein the spray head device (30), the airflow-generating device (40), the filter device (10) and the base (20) are sequentially and coaxially arranged from top to bottom, and the spray head device (30) is detachably connected to the filter device (10). The spray head device (30) is fixedly connected to the filter device (10), such that a user cannot disassemble and assemble the spray head device without tools, the overall integrity is high, and installation by the user is not needed.

Description

Bladeless fan and assembling method thereof

Technical field

The invention relates to the field of bladeless fans, in particular to a bladeless fan and an assembly method thereof.

Background technique

The nozzle device of the existing bladeless fan is independently detachable, and the design of the nozzle device and the filter device cannot be realized; although the detachable bladeless fan can be easily installed by the installer, the user can also disassemble it, but due to the user’s The level of professionalism is not high, and there are potential safety risks.

In view of this, it is necessary to develop a bladeless fan and its assembly method to solve the above-mentioned problems.

Summary of the invention

In view of the shortcomings in the prior art, the purpose of the present invention is to provide a bladeless fan and an assembly method thereof. The filter device is provided with a hollow interior to form an accommodation space; a base is provided on the filter. Directly below the device; a spray head device, which is arranged directly above the filter device; and an air flow generating device; it is arranged in the containing space formed by the filter device; wherein the spray head device, the air flow generating device, the filter device and The base is arranged coaxially from top to bottom, and the spray head device and the filter device are fixedly connected, so that the user cannot disassemble the spray head device without tools. The overall integration is large, and the user does not need to install it by themselves, which improves safety.

In order to achieve the above objects and other advantages according to the present invention, a bladeless fan is provided, which includes:

The filter device is hollow inside to form an accommodation space;

A base, which is arranged directly below the filtering device;

A spray head device, which is arranged directly above the filter device; and

Air flow generating device; which is arranged in the containing space formed by the filtering device;

The spray head device, the air flow generating device, the filter device and the base are arranged coaxially from top to bottom in sequence, and the spray head device and the filter device are connected by a thread.

Preferably, the filtering device includes:

A filter frame, which is arranged on the innermost layer of the filter device;

A filter structure, which is concentrically sleeved outside the filter frame;

Wherein, at least two sets of the filtering structure surround the filtering frame, and at least two sets of connecting components are provided at the intersection of the two filtering structures. When the filtering structure passes through the connecting components, it is removably When installed on the filter frame, the two filter structures can be detachably connected through the connecting assembly.

Preferably, the filter frame includes at least two sets of arch-shaped frames, and two of the arch-shaped frames are wrapped together to form a receiving space at the concave surface of the arch-shaped frame;

At least two sets of clamping components are provided at the joining interface of the two arch-shaped frames;

Wherein, the number of filter frames is consistent with the number of said filter structures, and each group of said filter structures is removably mounted on a corresponding group of said arch-shaped frames.

Preferably, the base includes:

Fixed layer, which is set at the bottom of the bladeless fan;

A rotating layer, which is located above the fixed layer;

Wherein, the rotating layer and the fixed layer are arranged coaxially, a transmission component is arranged in the rotating layer, and at least one set of control components and support components are arranged between the rotating layer and the fixed layer.

Preferably, the transmission assembly further includes a stepper motor and a gear set;

Wherein, the gear set includes a large gear and a small gear, the stepping motor is installed on the small gear, and the large gear is installed on the rotating shaft of the rotating layer.

Preferably, the control component includes;

A central Hall element, which is on the same straight line as the stepping motor and the rotating shaft;

The edge Hall element, whose rotation axis is the center, is at 1/2 of the maximum rotation angle on one side.

Hall magnets are respectively arranged under the central Hall element and the edge Hall element.

Preferably, a trigger switch is installed on the base.

Preferably, the spray head device includes:

A shunt device, which is provided with at least two shunt channels;

Nozzle front shell;

The back shell of the nozzle, the shape and size of which match the front shell of the nozzle;

Wherein, the flow dividing device is arranged in the air flow channel formed by the combination of the front shell of the spray head and the rear shell of the spray head.

Preferably, the shunting device includes:

The first member is hollow inside; and

The second member is recessed inside and is coaxially erected on the first member,

Wherein, the second member is provided with at least two annular diversion ports, the first member wraps the second member, the first member is matched with the second member, and the first member and the A shunt space is formed between the second members.

Preferably, the surface of the nozzle front shell facing the nozzle rear shell is provided with nozzle protrusions.

A nozzle groove is provided on the surface of the nozzle rear shell facing the nozzle front shell;

Wherein, the nozzle groove matches the nozzle protrusion.

Preferably, the air flow generating device includes:

The drainage tube has a hollow interior and both upper and lower ends are open to form an upper opening and a lower opening respectively;

The power chamber is spaced and coaxially arranged in the drainage tube to form an annular drainage cavity between the drainage tube and the power chamber.

Preferably, the annular drainage cavity is provided with a rotating impeller arranged coaxially with the drainage tube, the power chamber is provided with an impeller drive, and the power output end of the impeller drive is in transmission connection with the rotating impeller .

Furthermore, this case also provides an assembling method for assembling the bladeless fan according to any one of the foregoing, which is characterized in that it comprises the following steps:

Step S1, the nozzle device is installed directly above the filter device;

Step S2, installing a detachable connecting component between the spray head device and the filter device;

Step S3, approach the filter assembly of the filter device in the radial direction to the filter frame until it covers the detachable connection.

Compared with the prior art, the present invention has the following beneficial effects: a filter device is provided with a hollow inside to form an accommodation space; a base is provided directly below the filter device; a spray head device is provided on the filter device And the air flow generating device; which is arranged in the containing space formed by the filtering device; wherein the nozzle device, the air flow generating device, the filtering device and the base are arranged coaxially from top to bottom, the nozzle device and the filtering device The detachable connection between the two makes it impossible for the user to disassemble and assemble the spray head device without the help of tools. The overall integration is relatively large, and the user does not need to install it by themselves, which improves safety.

Description of the drawings

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

Figure 2 is a perspective view of a filter device according to an embodiment of the present invention;

Fig. 3 is a perspective view of a separation device of a filter device according to an embodiment of the present invention;

Figure 4 is a perspective view of a filter frame of a filter device according to an embodiment of the present invention;

5 is a top view of a part of the filtering structure of the filtering device according to an embodiment of the present invention;

Fig. 6 is a perspective view of a clamping assembly according to an embodiment of the present invention;

Fig. 7 is a perspective view of a base according to an embodiment of the present invention;

Figure 8 is a perspective view of a separation device for a base according to an embodiment of the present invention;

Fig. 9 is a front view of a rotating layer proposed according to an embodiment of the present invention;

Fig. 10 is a bottom view of a rotating layer proposed according to an embodiment of the present invention;

Figure 11 is a front cross-sectional view of a base proposed according to an embodiment of the present invention;

Figure 12 is a top view of a base according to an embodiment of the present invention;

Figure 13 is a front cross-sectional view of a bladeless fan proposed according to an embodiment of the present invention;

FIG. 14 is a flowchart of a method for controlling a base according to an embodiment of the present invention;

15 is a flowchart of a method for controlling a base according to an embodiment of the present invention;

Figure 16 is a perspective view of a bladeless fan proposed according to an embodiment of the present invention;

Figure 17 is a perspective view of a separating device for the front shell of the spray head and the rear shell of the spray head according to an embodiment of the present invention;

Figure 18 is a perspective view of a shunt device according to an embodiment of the present invention;

Fig. 19 is a perspective view of a separation device of a shunt device according to an embodiment of the present invention;

Figure 20 is a top view of a shunt device according to an embodiment of the present invention;

Figure 21 is a front cross-sectional view of a shunt device according to an embodiment of the present invention;

Fig. 22 is a top view of a second component of a shunt device according to an embodiment of the present invention;

FIG. 23 is a front cross-sectional view of the supporting member of the shunt device according to an embodiment of the present invention;

Figure 24 is a front cross-sectional view of the first sealing ring of the shunt device according to an embodiment of the present invention;

FIG. 25 is a perspective view of the first sealing ring of the shunt device according to an embodiment of the present invention;

Figure 26 is a front cross-sectional view of the second sealing ring of the shunt device according to an embodiment of the present invention;

Fig. 27 is a front view of the nozzle front shell of the flow dividing device according to an embodiment of the present invention;

28 is a top sectional view of a separation device of the nozzle front shell and the nozzle rear shell of the flow dividing device according to an embodiment of the present invention;

29 is a top sectional view of the nozzle front shell and the nozzle rear shell of the flow dividing device according to an embodiment of the present invention;

Fig. 30 is a perspective view of a liner structure of a flow dividing device according to an embodiment of the present invention;

FIG. 31 is a top view of the liner structure of the flow dividing device according to an embodiment of the present invention;

Fig. 32 is a top view of a lining plate of a flow dividing device according to an embodiment of the present invention;

Fig. 33 is a front view of a liner of a flow dividing device according to an embodiment of the present invention;

Fig. 34 is a perspective view of a deflector of a shunt device according to an embodiment of the present invention;

35 is a perspective view of a separating device for a deflector of a flow dividing device according to an embodiment of the present invention;

Figure 36 is a front cross-sectional view of an airflow generating device according to an embodiment of the present invention;

Fig. 37 is a partial cross-sectional view of a fixing assembly of a flow generating device according to an embodiment of the present invention;

Figure 38 is a front cross-sectional view of an airflow generating device according to an embodiment of the present invention;

Fig. 39 is a top view of an air flow generating device according to an embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings, and the foregoing and other objectives, features, aspects and advantages of the present invention will become more apparent, so that those skilled in the art can implement them with reference to the text of the description.

In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used in all the drawings to indicate the same or similar parts.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are defined relative to the configuration shown in the drawings In particular, "height" is equivalent to the size from top to bottom, "width" is equivalent to the size from left to right, and "depth" is equivalent to the size from front to back. They are relative concepts, so they may be based on It changes accordingly in different positions and different usage states. Therefore, these or other positions should not be interpreted as restrictive terms.

Terms related to attachment, coupling, etc. (for example, "connection" and "attachment") refer to the relationship in which these structures are directly or indirectly fixed or attached to each other through intermediate structures, and the movable or rigid attachment or relationship, unless Other ways are clearly stated.

According to an embodiment of the present invention in conjunction with the illustrations in Figs. 1 and 2, it can be seen that the bladeless fan includes:

The filter device (10) is hollow inside to form an accommodation space (150);

A base (20), which is arranged directly below the filtering device (10);

A spray head device (30), which is arranged directly above the filter device (10); and

An air flow generating device (40); which is arranged in the containing space formed by the filtering device (10);

The nozzle device (30), the air flow generating device (40), the filter device (10) and the base (20) are arranged coaxially from top to bottom, the nozzle device (30) and the filter device (10) It is a detachable connection;

As shown in FIG. 3, it can be seen that the filtering device 10 includes:

The filter frame 120 is arranged on the innermost layer of the filter device 10;

The filter structure 110 is concentrically sleeved outside the filter frame 120;

Wherein, at least two sets of the filter structure 110 surround the filter frame 120, and at least two sets of connecting components 130 are provided at the intersection of the two filter structures 110. When the filter structure 110 passes through the connecting components When the filter 130 is removably installed on the filter frame 120, the filter structures 110 are detachably connected by the connecting assembly 130.

In a specific embodiment, the spray head device 30 is specifically threadedly connected with the filter frame 120 of the filter device 10, and the filter structure 110 is close to the filter frame 120 to wrap the threaded connection.

The filter frame 120 includes at least two sets of arch-shaped frames 125, and two of the arch-shaped frames 125 are wrapped together to form a receiving space 150 at the concave surface of the arch-shaped frame 125;

At least two sets of clamping components 130 are provided at the joining interface of the two arch-shaped frames 125;

The number of the filter frames 125 is the same as the number of the filter structures 110, and each group of the filter structures 110 is removably mounted on a corresponding group of the arched frames 125.

The arched frame 125 is now explained in detail according to FIGS. 4 and 5. The arched frame 125 has two straight sides 121 and two curved ends 122, and the straight sides 121 are parallel to the arch. The longitudinal axis of the arch-shaped frame 125, and the curved end 122 is perpendicular to the longitudinal axis of the arch-shaped frame 125.

Each of the curved ends 122 is connected with an end flange 1221, and the end flange 1221 joins the curved end 122 on the outer circumference of the curved end 122 and runs along the arched frame 125.的radially bulge outward;

Each straight side 121 is connected with a side flange 1211, and the side flange 1211 joins the straight side 121 on the outer periphery of the straight side 121 and runs along the arched frame 125.的radially bulge outward;

The side flange 1211 is connected to the end of the end flange 1221 at its end to form a ridge around the edge of the arched frame 125, and the filter structure 110 is provided on the ridge. In the space surrounded by ridges.

Now referring to FIG. 1, the filter structure 110 shown includes a filter mesh 111, and each group of the filter mesh 111 and the filter frame 120 are provided with a guide for guiding the filter mesh 111 to be installed in the radial direction of the filter frame 120 Or removed guide structure 123.

Both ends of the filter screen 111 are connected with a filter screen skirt 112, and the filter screen skirt 112 combines the filter screen 111 on the inner circumference of the filter screen 111 and runs along the filter screen 111. When the filter screen 111 is removably installed on a corresponding set of the arched frame 125, the filter screen skirt 112 and the end flange 1221 at least partially overlap .

The guiding structure 123 includes:

At least two guide ribs 1231, which are provided on the end flange 1221; and

At least two guide portions 1232, which are provided on the filter skirt 112 and are opposite to the guide ribs 1231,

Wherein, the extending direction of the guide rib 1231 is consistent with the installation direction of the filter screen 111, and the guide part 1232 is matched with the guide rib 1231.

Referring now to FIG. 6, the card connection assembly 130 includes:

The clip strip 131, the left and right sides of which are attached to the joint interface of the two arch-shaped frames 125;

At least one chucking table 132, which is placed at the end of the chucking bar 131, both ends of the chucking table 132 protruding from the chucking bar 131 and erected on the two arch-shaped frames 125; and,

At least one hook 133, which is located on the surface of the clip strip 131 facing the accommodating space, the hook 133 is U-shaped, and the cross-sectional area of both ends of the hook 133 gradually decreases along the protruding direction, The hook 133 fixes the clip 131 on the arched frame 125.

A locking assembly 140 is provided between the filter frame 120 and the filter assembly 110 for selectively engaging the two.

In a preferred embodiment, the guide rib 1231 and the end flange 1221 are integrally formed, and the guide rib 1231 is provided with a chamfer at the edge of the end flange 1221, the purpose of which is to prevent The guiding rib 1231 and the guiding portion 1232 cause wear during use. 5 again, at least two guiding blocks 12321 are formed on the filter skirt 112. In a preferred embodiment, the two guiding blocks 12321 are symmetrically distributed with respect to the locking hole 421, and the guiding part 1232 is formed at the corresponding edge of the guide block 12321. The width of the guide portion 1232 gradually increases outward from the intersection of the filter screen skirt 112 and the filter screen 111 to form a horn-shaped guide portion from the inside to the outside. The cross section of the arched frame 125 is semicircular or fan-shaped, and the shape of the filter 111 matches the arched frame 125, so the shape of the guide block 12321 is the same as the shape of the filter skirt 112 Consistent, the guide ribs 1231 fit with the outer edge of the guide block 12321, and the guide ribs 1231 fit with the inner edge of the guide block 12321, the purpose of which is to keep the filter 111 away from or When approaching the arched frame 125, the butt joint installation is smoother and more stable.

Between the filter skirt 112 and the end flange 1221 is provided a locking component 140 for selectively clamping the two, and the locking skirt 141 of the locking component 140 protrudes from the surface of the locking plate And it protrudes from the locking hole 1121 to achieve the effect of locking and tightening, and its purpose is to further strengthen the filter mesh 111 on the arched frame 125. When the filter screen 111 approaches the filter frame 120, the locking assembly 140 is pressed by the filter screen skirt 112, and the root of the locking assembly 140 rotates downwards until the locking The highest part of the skirt 140 extends into the locking hole 1121 until it is locked; when the filter 111 is far away from the filter frame 120, the user only needs to press the locking skirt 141 to push the filter 111 to the proper position.

With reference to Figures 7 and 8, the base 20 includes:

The fixed layer 230 is arranged at the bottom of the bladeless fan;

The rotating layer 220 is located above the fixed layer 230;

Wherein, the rotating layer 220 and the fixed layer 230 are arranged coaxially, the rotating layer 220 is provided with a transmission component 250, and at least one set of control components 260 and supports are provided between the rotating layer 220 and the fixed layer 230. Component 270.

The upper end surfaces of the fixed layer 230 and the rotating layer 220 are provided with a straight partition 221 and a circumferential partition 231 spaced apart;

Wherein, the straight partition 221 is radially formed from the center of the fixed layer 230 and the rotating layer 220 in the radial direction;

The circumferential partition 231 is concentric circles in the radial direction;

The straight partitions 221 and the circumferential partitions 231 are arranged to cross in the same plane to form a net-shaped partition. While ensuring the strength of the structure, the partition saves materials and provides a certain degree of waterproofing. effect.

A base baffle 210 is provided on the periphery of the fixed layer 230 and the rotating layer 220;

Wherein, the base baffle 210 wraps the fixed layer 230 and the rotating layer 220, the base baffle 210 is provided with a switch button 211, and the surface of the fixed layer 220 facing the ground is provided in a circular array The arranged supporting legs are used to support the bladeless fan without direct contact with the ground, so that the bladeless fan is more stable.

Referring now to FIGS. 9, 10 and 11, the transmission assembly 250 further includes a stepper motor 251 and a gear set;

The gear set includes a large gear 252 and a small gear 253, the stepping motor 251 is mounted on the small gear 253, and the large gear 252 is mounted on the rotating shaft 1232 of the rotating layer 220.

The big gear 252 is provided with a support column 273, the support column 273 is provided with at least part of a spring, the end of which is a smooth round head, the support column 241 is provided with a part of the spring that can be generated by the driving device 250 The vibration in the axial direction moves up and down in the axial direction to alleviate the vibration in the axial direction caused by the driving device 250.

The surface of the large gear 252 of the gear set facing the fixed layer 230 is provided with smooth grooves 274 arranged in a circular array;

The close arrangement and smooth transition between the smooth grooves 274 can ensure the smoothness of the rotation of the rotating layer 220;

The smooth groove 274 is matched with the end of the support column 273, and the smoothness of the smooth round head and the smooth groove reduces the degree of wear of the support column 273 when the driving device 251 is working. , Increase the service life; the cooperation of the smooth groove 274 and the support column 273 also fixes the direction of the bladeless fan to a certain extent, so that it cannot slide at will; two of the smooth grooves 274 The smooth transition between the two ensures that the bladeless fan will not be stuck during the rotation.

Referring now to FIG. 13, a base surface 263 is provided above the rotating layer 220;

The base surface 263 is coaxially arranged with the rotating layer 220 and the shape is consistent with the shape of the rotating layer 220.

The edge of the base surface 263 is tightly combined with the bottom edge of the filter device 10 of the bladeless fan; an air inlet space 261 is formed between the base surface 263 and the base 20, and the base surface 263 is formed between the base 20 and the base 20. An intake space 261, so the filter device 10 of the bladeless fan does not directly contact the base 20, and the outside air flow enters through the intake space 261, because the driving device 251 is partially exposed to the intake space 261. Under the action of the air flow, part of the heat generated by the driving device 251 can be taken away, the temperature can be reduced, and the working efficiency of the driving device 251 can be improved.

With reference to Figure 11 and Figure 12, it can be seen that the control component 260 includes;

The central Hall element 261 is on the same straight line as the stepping motor 251 and the rotating shaft 1232;

The edge Hall element 240 has the rotation axis 1232 as the center and is at 1/2 of the maximum rotation angle on one side.

Hall magnets 262 are respectively arranged under the center Hall element 261 and the edge Hall element 240.

Preferably, a Hall magnet 262 is respectively provided below the initial positions of the central Hall element 261 and the edge Hall element 240. When the central Hall element 261 and the edge Hall element 230 are located in the Hall When the magnet 220 is above, the main control chip of the whole machine can receive the signal and issue instructions.

In a specific embodiment, the fan oscillating mechanism has the function of correcting the step loss of the stepping motor 251 through the central hall element 261, and when the central hall element 261 detects a magnetic signal, it is regarded as the pinion gear 120 is at the center of the fan-shaped track. The edge Hall element 240 has the function of eliminating the failure of the shaking head function. When the edge Hall element 240 detects a magnetic signal, it is regarded as the pinion 253 at the edge of the fan-shaped track. The main control chip of the whole machine can output different instructions according to the signals of different Hall elements in the control assembly 260, thereby avoiding failure and improving the accuracy of shaking the head.

The supporting assembly 270 includes a plane bearing 272 and a bearing seat 271;

Wherein, the plane bearing 272 is arranged on the lower end surface of the rotating layer 220, and the bearing seat 271 is arranged on the upper end surface of the fixed layer 220.

A trigger switch 211 is installed on the base 20, and the trigger switch 211 is used to detect whether the spray head device 30 is installed to control the start of the whole machine.

Referring now to Figures 14 and 15, the method steps of the Hall element controlling the rotation of the bladeless fan are as follows:

Step S1, the stepping motor 251 of the transmission assembly 250 is activated to drive the rotating layer 220 to drive the fan to rotate;

Further, in step S2, the transmission assembly 250 rotates for 1500 steps;

Further, in step S3, whether the central Hall element 261 of the control assembly 260 detects a magnetic signal;

Further, in step S4, when the central hall element 261 of the control assembly 260 detects a magnetic signal, step 5 is entered, and the stepping motor 251 of the transmission assembly 250 continues to rotate for 1000 steps; when the control is performed in step 4 When the central hall element 261 of the assembly 260 does not detect a magnetic signal, step S5 is entered. Since the central hall element 261 does not detect a magnetic signal, the stepping motor 251 continues to advance until the edge of the control assembly 260 The Hall element 240 detects the magnetic signal to avoid the failure of the shaking head function;

Further, in step S6, the execution cycle program is entered to realize the control and use of the fan shaking head mechanism.

The cycle program includes the following steps:

Step P1, the stepping motor 251 reverses;

Further, in step P2, the stepping motor 251 reversely rotates for 1500 steps;

Further, in step P3, the central Hall element 261 detects a magnetic signal;

Further, in step P4, the stepping motor 251 continues to rotate for 1500 steps before entering;

Step P5, the stepping motor 251 reverses again;

Further, in step P6, the stepping motor 251 continues to rotate for 1500 steps;

Further, in step P7, the central Hall element 261 detects a magnetic signal;

Further, in step P8, the stepping motor 251 continues to rotate for 1000 steps;

Step P9, steps P1 to P8 are repeated, and the cycle program is executed cyclically to realize the head-shaking motion of the fan head-shaking mechanism.

As shown in FIG. 16, FIG. 17, and FIG. 18, the spray head device 30 includes:

The shunt device 310 is provided with at least two shunt channels;

Nozzle front shell 360;

The nozzle rear shell 370, the shape and size of which match the nozzle front shell 360;

Wherein, the flow dividing device 210 is arranged in the air flow channel 372 formed by the combination of the front shell 360 of the spray head and the rear shell 370 of the spray head.

Referring now to FIG. 19, FIG. 20, FIG. 21, and FIG. 22, the shunt device 310 includes:

The first member 311 is hollow inside to form a connecting space 31111;

The first member 311 and the first member 311 wrap the second member 312. At least four supporting parts 3112 are provided around the outer periphery of the first member 311, which are used to erect the flow dividing device inside the bladeless fan body. The first member 311 extends downward to form a connecting part 3113. With reference to FIG. 16, it can be seen that the connecting part 3113 is used to connect the airflow generating device 40 of the bladeless fan, so that the air flow in the body smoothly enters the branch flow.装置30。 Device 30.

The second member 312 is recessed inside and coaxially erected on the first member 311,

Wherein, the second member 312 is provided with at least two annular diversion ports 3121 as shown in FIG. 18. The annular diversion ports 3121 extend into and closely adhere to the air flow channel 372, so that the air flow smoothly enters the air flow channel 372 and avoids air flow. Quickly enter the long and narrow nozzle to create noise and improve user experience.

The first member 311 wraps the second member 312, the first member 311 fits the second member 312, and a shunt space is formed between the first member 311 and the second member 312 .

The bottom of the second member 312 is recessed downward to form a bottom groove 3123;

As shown in FIG. 20, a bottom bump 3124 is provided in the bottom groove 3123;

The bottom edge of the second member 312 is provided with a bottom edge groove 350.

In specific embodiments, at least four support seats 3126 are provided above the bottom protrusion 3124, and the support seats 241 are used to support the spray head front shell 360 and the spray head rear shell 370, reducing the number of the spray head front shell 360 and the spray head rear shell. The abrasion of the shell 370 and the diverting device 310 further increases its service life.

The shape of the air flow channel 372 is changeable and has multiple angles. Although the annular diversion port 210 extends into and closely adheres to the air flow channel 372, gaps are generated due to the multiple angles of the air flow channel 372. The air flow entering from the annular splitting port 3121 returns to the body of the bladeless fan, causing the problem of insufficient intensity of the injected air flow, and may also cause noise. A sealing ring 323 is provided on the periphery of the annular splitting port 210, which has Multi-angle, the inner side is tightly attached to the annular splitter 3121, and the outer side is tightly attached to the air flow channel 372, which can effectively block the backflow of gas and prevent the air from spreading around, which not only improves the strength of the air, but also reduces the noise. Further improve user experience.

In a specific embodiment, the arrangement of the annular diversion ports 3121 may be such that at least two of the annular diversion ports 3121 are arranged side by side on the second member 20 at intervals, or it may be arranged around the second member 312. The central axis of the spool is arranged in a circular array; wherein, the number of the first member 311 and the second member 312 is the same as the number of the ring-shaped diverter 3121 provided.

As shown in Figs. 24 and 25, the shunt device 310 includes:

The first sealing ring 321 is arranged on the outside of the flow dividing device;

The second sealing ring 322 is arranged on the inner side of the shunting device;

The annular sealing ring 323 is arranged on the periphery of the annular diversion port 3121.

Wherein, the first sealing ring 321 is used to seal the gap between the air flow generating device 20 and the outside of the flow divider 10, and the second sealing ring 322 is used to seal the air flow generating device 20 and the flow divider 10 The gap between the inner sides of the fan 10; the supporting member 340 is connected with the first sealing ring 321 to realize the sealing and shock absorption device fixed in the bladeless fan.

The first sealing ring 321 and the second sealing ring 322 make the flow dividing device 310 and the air flow generating device 20 not directly contact, and the first sealing ring 321 and the second sealing ring 322 can generate the air flow. The vibration transmission of the device 20 is blocked, so that the shunt device 310 can remain stable; the first sealing ring 321 and the second sealing ring 322 are preferably made of rubber.

The upper and lower ends of the first sealing ring 321 extend inwardly along the center of the first sealing ring 321 and do not touch, forming a claw structure 3211;

The upper part of the outer side of the first sealing ring 321 is provided with a T-shaped buckle structure 3214 arranged in a circular array;

The outer lower part of the first sealing ring 321 is connected to a lower flange 3212, and a certain gap is provided between the lower flange 3212 and the first sealing ring 321 to form a groove 3213.

The T-shaped buckle structure 3214 is adapted to the groove 3431, and the lower part of the supporting skirt 343 and the groove 3213 of the first sealing ring 321 at least partially overlap; wherein, the T-shaped The longitudinal part of the buckle structure 3214 is self-integrated with the first sealing ring 321, and the outer side of the first sealing ring 321 is designed as a T-shaped buckle structure 3214 at the upper part and a groove 3213 at the lower part so that the The cross combination of the first sealing ring 321 and the supporting member 340 ensures the stability of the first sealing ring 321.

As shown in FIG. 26, the lower part of the second sealing ring 322 is provided with at least two supporting feet 3221;

The upper part of the second sealing ring 322 fits with the bottom edge groove 350, the supporting foot 3221 is connected with the upper end surface of the airflow generating device 20, and the upper part of the second sealing ring 322 can ensure its Close connection with the flow divider 10; the vertical vibration of the flow dividing device 310 due to the vibration conduction of the air flow generating device 20 is due to the arrangement of the supporting feet 3221 at the lower part of the second sealing ring 322, the The supporting leg 3221 will be deformed due to vibration, which will relieve the vibration to a certain extent, and increase the service life of the shunt device 310.

Referring now to FIG. 23, the shunt device 310 includes:

The support member 340 has an outer flange 341 extending downward in the axial direction from its outer side;

The inner side of the supporting member 340 extends downward in the axial direction to form an inner flange 342, and the lower end of the inner flange 342 is connected to a supporting skirt 343;

The upper part of the supporting skirt 343 and the inner side of the supporting member 340 form a slot 3431.

Wherein, the groove 3431 is adapted to the T-shaped buckle structure 3214 on the first sealing ring 321, and the lower part of the supporting skirt 343 is at least partially connected to the groove 3213 of the first sealing ring 321 Overlapping, the upper end surface of the supporting member 340 is fixedly connected to the shunting device 310, further stabilizing the shunting device 310, and also making the shunting device 310 and the first sealing ring 321 and the second sealing ring 322 and The airflow generating devices 20 are tightly combined, which improves the sealing performance and shock absorption performance of the sealed shock absorption device.

In a specific embodiment, the first sealing ring 321 and the second sealing ring 322 and the buffer assembly 120 can each have a shock absorption function, and can be freely combined or used alone; the first sealing ring 321 and The second sealing ring 322 can be freely selected from the upper and lower sides to closely contact the flow dividing device 310 and the air flow generating device 20, or one side of the first sealing ring 321 and the second sealing ring 322 are tightly contacted. Contacting the flow dividing device 310 and the air flow generating device 20 for sealing; the first sealing ring 321 can also choose to be directly connected to the bladeless fan and the flow dividing device 310 without a supporting member 340.

Referring now to FIG. 27, it can be seen that the nozzle front shell 360 and/or the nozzle rear shell 370 are provided with nozzles 361 at intervals so that the air flow channel 372 as shown in FIG. 17 communicates with the outside through the nozzles 361.

Wherein, the nozzles 361 are symmetrically distributed on the nozzle front shell 360 and/or the nozzle rear shell 370.

The nozzle front shell 360 and the nozzle rear shell 370 each include two vertical sections 364 and a curved section 363;

Wherein, the curved section 363 connects the upper ends of the two vertical sections 364, and the lower ends of the two vertical sections 364 extend downwardly and inwardly to form a hollow inner protrusion to enclose In the form of winding, an accommodation space is formed. The accommodation space is used to store the shunting device 310 of the bladeless fan to save structural space. It can also make the shunting device 310 and the nozzle front shell 360 closely fit to ensure the air The flow enters the rear shell 370 of the nozzle smoothly.

The curved section 363 connects the two vertical sections 364, and the connection between the curved section 363 and the vertical section 364 is provided with a blocking member 373; the curved section 363 is connected to the vertical section 364. A blocking baffle 373 is provided at the connection of the straight section 364. The blocking baffle 373 is integrally formed with the curved section 363 and the vertical section 364. The blocking baffle 373 can effectively prevent the airflow from being transmitted to The top end of the nozzle solves the problem that the air flow runs in a ring shape in the curved section 363, causing the air flow to collide, causing the air flow to be unevenly distributed in the channel, thereby affecting the uniformity of the air jet.

As shown in FIG. 28 and FIG. 29, the surface of the nozzle front shell 360 facing the nozzle rear shell 370 is provided with nozzle protrusions 371.

The surface of the nozzle rear shell 370 facing the nozzle front shell 360 is provided with a nozzle groove 365;

Wherein, the nozzle groove 365 matches the nozzle protrusion 371 to form a concave-convex structure 391.

A concave-convex structure 390 is provided between the nozzle front shell 360 and the nozzle rear shell 370, the surface of the nozzle front shell 360 facing the nozzle rear shell 370 is provided with protrusions 371, and the nozzle rear shell 370 faces the entire surface. The surface of the nozzle front shell 360 is provided with a groove 365, wherein the groove 365 matches the protrusion 371, and the concave-convex structure 390 is assembled with glue to strengthen the nozzle front shell 360. The airtightness with the nozzle back shell 370.

Wherein, in a specific embodiment, the setting positions of the protrusion 371 and the groove 365 can be interchanged or used crosswise.

Referring now to Figures 30 and 31, the nozzle front shell 360 is provided with a liner structure 380;

Wherein, the liner structure 380 at least partially overlaps the nozzle front shell 360.

As shown in Figure 32 and Figure 33, the liner structure 380 includes:

The liner 381 is formed by the intersection of one end of the left liner plate 3811 and the right liner plate 3812, forming a V-shape as a whole;

At the intersection of the left liner board 1311 and the right liner board 1312, air outlets 3815 are provided at intervals;

The number, shape and position of the air outlet 3815 and the nozzle 361 are consistent.

In a specific embodiment, when the outside air flow enters the interior of the bladeless fan through the lower filter device 20 of the bladeless fan, the internal driving device drives the air flow to flow upwards into the nozzle front shell 360 and the rear of the nozzle. In the air flow channel 372 formed by the shell 370, when the air flow flows into the air flow channel 372 from the flow dividing device 310, the air flow will rush toward the curved section 363 due to the greater wind force of the air flow. The blocking baffle 373 blocks the air flow and returns it downward into the vertical section 364, so that the energy loss of the air flow is reduced. The air flow is in the vertical section 364. Collision occurs inside, the air stream is ejected from the nozzle 361; only the air stream is discharged from the bladeless fan with strong wind force, the nozzle 361 is preferably rectangular and the nozzles 361 are arranged at intervals The two vertical sections 364 make the air flow smoother when discharging the bladeless fan, and its structure is simple, easy to install, reducing wear during disassembly or installation, and improving its performance. Service life.

Since the lining plate 381 is provided in the vertical section 364 of the nozzle front shell 360, which is V-shaped, the air flow enters from the large V-shaped opening and exits from the small opening. The lining plate 381 avoids the problem of howling and noise caused by the unsmooth air flow caused by the roughness and frizz of the nozzle front shell 360.

Because the angle of the lining plate 381 is smaller than the angle of the nozzle front shell 360, the internal space of the airflow channel 372 becomes smaller. When the airflow enters the airflow from the lower filter device 10 of the bladeless fan at extreme speed When the passage 372 is passed, a pressure difference is generated, which makes the flow of air discharged from the bladeless fan become stronger and accelerates the discharge of the air flow.

As shown in FIGS. 34 and 35, the deflector 382 is located in the deflector air duct 383 formed by the left liner 3811 and the right liner 3812, and the deflector air duct 383 is connected to the nozzle 361 through;

The deflector 382 includes a front deflector 3821 and a rear deflector 3822;

The surface of the front diversion portion 3821 facing the rear diversion portion 3822 is provided with a diversion groove 38211;

The surface of the diversion rear portion 3822 facing the diversion front portion 3821 is provided with a diversion flange 38221;

Wherein, the diversion flange 13221 is used in conjunction with the diversion groove 13211. Preferably, the shown diversion front portion 3821 and the diversion rear portion 3822 are solid; because the diversion plate 382 The interior is hollow and formed by splicing the front diversion part 3821 and the rear diversion part 3822 to generate a gap and generate noise. If the baffle 382 is a solid body, the generation of noise can be reduced.

The cross section of the baffle 382 is in the shape of a drop, and the baffle 382 is connected to the front of the nozzle 361 through the liner 381;

Wherein, the long axis of the cross section of the deflector 382 is collinear with the central axis of the air outlet 3815;

Referring now to FIG. 33, at least two hooks 3813 are provided between the air outlets 3815, and the cross-sectional area of the hooks 3813 gradually decreases along the direction in which they protrude; the hooks 3813 are formed between A card slot 3817, wherein the card slot 3817 is matched with the spacing structure 362 between the nozzles 361 that are arranged at intervals in pairs, wherein the card slot 3817 is spaced from the nozzles 361 that are arranged at intervals. The spacer structure 362 is adapted so that the lining plate 381 is fixed to the nozzle front shell 310 by the locking structure 3814, and at the same time, the lining plate 381 is further fixed to improve its stability and increase the lining plate. The service life of 381.

The air flow generating device 40 includes:

Referring now to Figure 36, the drainage tube 440 is hollow inside and both upper and lower ends are open to form an upper opening and a lower opening respectively;

The power chamber 470 is spaced and coaxially arranged in the drainage tube 440 to form an annular drainage cavity 450 between the drainage tube 440 and the power chamber 470.

The annular drainage chamber 450 is provided with a rotating impeller 420 coaxially arranged with the drainage tube 440, and the power chamber 470 is provided with an impeller driver 430. The power output end of the impeller driver 430 is connected to the rotating impeller. 420 is connected in transmission, so that the rotating impeller 420 rotates around the axis of the drainage tube 440 under the drive of the impeller driver 430

A fixing assembly for fixing the power chamber 470 is fixedly connected between the power chamber 470 and the drainage tube 440, and the fixing assembly is arranged upstream of the airflow in the drainage tube 440.

The fixed component is at least two guide vanes 441 fixed between the power chamber 470 and the draft tube 440. In a specific embodiment, the rotating impeller 420 is located at the lower opening of the draft tube 440. The guide vane 441 is located at the upper opening of the draft tube 440.

The guide vane 441 can correct the flow direction of the airflow deflected after being driven by the rotating impeller 420. The deflection direction of the rotating impeller 420 makes the airflow flow clockwise or counterclockwise in a vortex shape. The deflection direction of the 441 is opposite to the deflection direction of the rotating impeller 420, and the airflow rotating clockwise or counterclockwise is guided by the guide vane 441 in the opposite deflection direction, so that the corrected airflow direction is the same as that of the airflow. The axial direction of the drainage tube 440 is consistent, which improves the smoothness of air flow and reduces the generation of noise.

37, the guide vane 441 includes an introduction section 4411 and an exit section 4412 that are sequentially arranged along the flow direction of the airflow. The radius of curvature of the introduction section 4411 is set such that the flow direction of the airflow before correction is the same as that of the introduction section. The tangent direction at the entrance of 4412 is the same, and the radius of curvature of the introduction section 4411 is smaller than the radius of curvature of the exit section 4412. The introduction section 261 and the exit section 262 are in a smooth transition, which further solves the problem of inadequate air flow. The problem of smoothness and noise.

The lower opening of the drainage tube 440 is sequentially formed along a direction opposite to the flow direction of the airflow:

The tapered section 411 has a cross-sectional diameter that gradually decreases in the direction opposite to the air flow direction, and the tapered section 410 has a cross-sectional diameter that gradually expands in the direction opposite to the air flow direction; the drainage tube 440 The overall cross-sectional area first gradually decreases along the flow direction of the airflow and then gradually expands. The widening section 411 has the advantage of enlarging the air intake. A large amount of airflow gathers in the widening section 411. The intersection of the tapered section 410 and the tapered section 411 is the place where the interface diameter is the smallest. Before entering the diverging section 411 or when entering the diverging section 411, the airflow movement follows the principle of "when the fluid moves in the tube, the flow velocity is large at a small section, and the flow velocity is small at a large section", so the airflow continues to accelerate. When it reaches the narrow throat, the velocity has exceeded the speed of sound. However, the transonic fluid no longer follows the principle of "higher velocity at small cross-sections and low velocity at large cross-sections" when moving, but on the contrary, the larger the cross-section, the faster the velocity, which increases the flow velocity of the airflow entering the splitter 310. , Improve user experience.

As shown in FIG. 38 and FIG. 39, the air flow generating device 40 includes:

The support ring 480 has an inner circle extending downward in the axial direction to form an inner skirt 481;

The upper end surface of the support ring 480 is provided with at least three first cylindrical grooves 482 at intervals. The first cylindrical grooves 482 protrude from the support ring 480. The first cylindrical grooves 482 are connected to the support ring 480. The support ring 480 is self-contained.

The lower end surface of the support ring 480 is in close contact with the upper end surface of the support structure 461, and the support structure 461 further supports the airflow generating device 40, thereby further strengthening the airflow generating device 40 stability.

The air flow generating device 40 includes:

The shock absorber 460, the shock absorber 460 is a cylindrical groove;

Wherein, the damping member 460 has a diameter smaller than that of the first cylindrical groove 482, and is sleeved in the first cylindrical groove 482, and the number thereof is equal to the number of the first cylindrical groove 482. Unanimous.

The outer peripheral skirts 497 arranged in a circumferential array are arranged at intervals around the casing of the airflow generator 20;

At least three shock-absorbing feet 4911 are provided on the lower end surface of the outer peripheral skirt 497, and the cross-sectional area of the shock-absorbing feet 4911 is gradually decreasing along the extending direction;

Wherein, the damping foot 4911 is sleeved in the damping member 490, and the number thereof is the same as that of the damping member 490.

The shock-absorbing foot 4911 is tightly combined with the shock-absorbing member 490 and the first cylindrical groove 482, and the shock-absorbing foot 4911 is tightly coupled with the shock-absorbing member 490 and the first cylindrical groove 482 As a result, the lateral vibration generated by the airflow generating device 40 in the working process is reduced, and the stability of the airflow generating device 40 in the lateral direction is stabilized.

In a specific embodiment, the method for assembling the bladeless fan includes the following steps:

Step S1, the base 20 is fixedly installed directly under the filter frame 120 of the filter device 10;

Step S2, installing the air flow generating device 40 in the containing space of the filtering device 10;

Step S3, the installation of each component in the spray head device 30 is completed;

Step S4, a detachable connection part is provided between the spray head device 30 and the filter device 10;

In step S5, the filter assembly 110 of the filter device 10 is approached to the filter frame 120 in the radial direction until it covers the detachable connection.

The number of equipment and the processing scale described here are used to simplify the description of the present invention. The applications, modifications and changes to the present invention are obvious to those skilled in the art.

Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. For those skilled in the art, it can be easily Additional modifications are implemented, so without departing from the general concept defined by the claims and equivalent scope, the present invention is not limited to the specific details and the legends shown and described here.

Claims

A bladeless fan, characterized in that it comprises:

The filter device (10) is hollow inside to form an accommodation space (150);

A base (20), which is arranged directly below the filtering device (10);

A spray head device (30), which is arranged directly above the filter device (10); and

An air flow generating device (40); which is arranged in the containing space formed by the filtering device (10);

The nozzle device (30), the air flow generating device (40), the filter device (10) and the base (20) are arranged coaxially from top to bottom, the nozzle device (30) and the filter device (10) There is a detachable connection between them.
The bladeless fan according to claim 1, wherein the filtering device (10) comprises:

A filter frame (120), which is arranged on the innermost layer of the filter device (10);

A filter structure (110), which is concentrically sleeved outside the filter frame (120);

Wherein, at least two sets of the filtering structure (110) surround the filtering frame (120), and at least two sets of connecting components (130) are provided at the intersection of the two filtering structures (110). When the filter structure (110) is removably installed on the filter frame (120) through the connecting assembly (130), the filter structures (110) are separable through the connecting assembly (130).式地连接。 Style ground connection.
The bladeless fan according to claim 2, wherein the filter frame (120) includes at least two sets of arch-shaped frames (125), and the two arch-shaped frames (125) are wrapped together to form The receiving space (150) at the concave surface of the arch-shaped frame (125);

At least two sets of clamping components (130) are provided at the joining interface of the two arch-shaped frames (125);

Wherein, the number of filter frames (125) is consistent with the number of said filter structures (110), and each group of said filter structures (110) is removably mounted to a corresponding group of said arched frames (125) Above.
The bladeless fan according to claim 1, wherein the base (20) comprises:

The fixed layer (230) is arranged at the bottom of the bladeless fan;

A rotating layer (220), which is located above the fixed layer (230);

Wherein, the rotating layer (220) is arranged coaxially with the fixed layer (230), the rotating layer (220) is provided with a transmission assembly (250), the rotating layer (220) and the fixed layer (230) At least one set of control assembly (260) and support assembly (270) are provided in between.
The bladeless fan according to claim 4, wherein the transmission assembly (250) further comprises a stepping motor (251) and a gear set;

Wherein, the gear set includes a large gear (252) and a small gear (253), the stepping motor (251) is installed on the small gear (253), and the large gear (252) is installed on the rotating Layer (220) on the axis of rotation (1232).
The bladeless fan according to claim 4, wherein the control assembly (260) comprises;

A central Hall element (261), which is on the same straight line as the stepping motor (251) and the rotating shaft (1232);

The edge Hall element (240), the rotation axis (1232) of which is the center, is at 1/2 of the maximum rotation angle on one side.

Hall magnets (262) are respectively arranged under the central Hall element (261) and the edge Hall element (240).
The bladeless fan according to claim 1, wherein a trigger switch (211) is installed on the base (20).
The bladeless fan according to claim 1, wherein the nozzle device (30) comprises:

A shunt device (310), which is provided with at least two shunt channels;

Nozzle front shell (360);

The nozzle rear shell (370), the shape and size of which match the nozzle front shell (360);

Wherein, the flow dividing device (210) is arranged in the air flow channel (372) formed by the combination of the front shell (360) of the spray head and the rear shell (370) of the spray head.
The bladeless fan according to claim 7, wherein the flow dividing device (310) comprises:

The first member (311) is hollow inside; and

The second member (312) is recessed inside and coaxially erected on the first member (311),

The first member (311) is matched with the second member (312), and a shunt space is formed between the first member (311) and the second member (312).
The bladeless fan according to claim 7, characterized in that, the second member (312) is provided with at least two ring-shaped diversion ports (3121), and the first member (311) wraps the second member (312),
The bladeless fan according to claim 7, characterized in that a nozzle protrusion (371) is provided on the surface of the nozzle front shell (360) facing the nozzle rear shell (370).
The bladeless fan according to claim 11, characterized in that a nozzle groove (365) is provided on the surface of the nozzle rear shell (370) facing the nozzle front shell (360);

Wherein, the nozzle groove (365) matches the nozzle protrusion (371).
The bladeless fan according to claim 1, wherein the air flow generating device (40) comprises:

Drainage tube (440), which is hollow inside and both upper and lower ends are open to form an upper opening and a lower opening respectively;

The power chamber (470) is spaced and coaxially arranged in the drainage tube (440) to form an annular drainage cavity (450) between the drainage tube (440) and the power chamber (470).
The bladeless fan according to claim 12, characterized in that the annular drainage cavity (450) is provided with a rotating impeller (420) arranged coaxially with the drainage tube (440), and the power chamber ( An impeller drive (430) is provided in 470), and the power output end of the impeller drive (430) is drivingly connected with the rotating impeller (420).
An assembling method for assembling the bladeless fan according to any one of claims 1 to 14, characterized by comprising the following steps:

Step S1, the nozzle device (30) is installed directly above the filter device (10);

Step S2, installing a detachable connecting component between the spray head device (30) and the filter device (10);

In step S3, the filter assembly (110) of the filter device (10) is approached to the filter frame (120) in the radial direction until it covers the detachable connection.