Air cleaning bladeless fan with variable air duct

Abstract

The utility model discloses an air cleaning bladeless fan with a variable air duct, which comprises a flow divider, at least two air outlet duct inner side shells, at least two first gears, at least two second gears and a first driver, and the flow divider is provided with at least two output ports; the driving end of the first driver is connected to one of the first gears, the two first gears are meshed with each other and distributed in a bilateral symmetry mode, the two second gears are distributed in a bilateral symmetry mode and meshed with the first gears correspondingly, and the tops of the two air outlet duct inner side shells are rotationally installed on the second gears correspondingly. According to the scheme, the problems that in the prior art, the air outlet speed and the air volume of the air purification bladeless fan are adjusted by changing the length of the air outlet ducts, and the use flexibility is not high; and when the length of the air outlet duct is increased, the air resistance and noise of air outlet may be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of air-purifying bladeless fans, in particular to an air-purifying bladeless fan with a variable air duct. Background Art

[0002] The air purifying bladeless fan is a new type of air purifying fan. In the traditional air purifying bladeless fan, the wind speed is controlled by pressing buttons, but it is easy to accidentally press the desired wind speed gear and have to adjust it again. In order to solve the above problems, a patented bladeless fan is designed. The size of the air outlet duct is changed by telescopic air outlet mechanism, and the wind speed is controlled by analog sensor. However, the existing air purifying bladeless fan is adjusted by changing the length of the air outlet duct. For some scenes that require precise control of air flow speed and quality, such as medical facilities, laboratories, etc., the air purifying bladeless fan cannot be accurately adjusted. The wind speed and air volume are not flexible. In addition, when the length of the air outlet duct is increased, the wind resistance and noise of the air outlet may increase. Utility Model Content

[0003] In view of the above-mentioned defects, the utility model proposes an air-purifier bladeless fan with a variable air duct, which aims to solve the problem that the existing method of adjusting the air outlet speed and air volume of the air-purifier bladeless fan by changing the length of the air outlet duct is not flexible in use; and when the length of the air outlet duct is increased, the wind resistance and noise of the air outlet may increase.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A variable air duct air-purifying bladeless fan, comprising an air inlet assembly, a deflector, a connecting bracket, a power assembly, a flow splitter, an outer shell of an air outlet duct, at least two inner shells of the air outlet duct, at least two first gears, at least two second gears and a first driver, wherein the flow splitter is provided with an input port and at least two output ports;

[0006] The bottom of the deflector is connected to the air inlet assembly, and the air inlet assembly is used to allow air to enter the interior of the air-purifying bladeless fan. The top of the deflector is connected to the input port of the diverter through the connecting bracket. The power assembly is arranged on the connecting bracket, and the power assembly is used to provide power to the air-purifying bladeless fan.

[0007] The bottoms of the left and right sides of the outer shell of the air outlet duct are respectively installed on the two output ports of the diverter, the two first gears, the two second gears and the first driver are all arranged on the top of the outer shell of the air outlet duct, the driving end of the first driver is connected to one of the first gears, the two first gears are meshed with each other and symmetrically distributed on the left and right, the two second gears are symmetrically distributed on the left and right, the two second gears are respectively meshed with the respective first gears, the tops of the two inner shells of the air outlet duct are respectively rotatably installed on the respective second gears, the bottoms of the two inner shells of the air outlet duct are respectively rotatably installed on the two output ports of the diverter, the outer shell of the air outlet duct and the two inner shells of the air outlet duct form two outlet ducts, and the front ends of the two sides of the outer shell of the air outlet duct and the front ends of the two inner shells of the air outlet duct form two air outlets.

[0008] Preferably, the top of the outer shell of the air outlet duct is provided with two first limiting grooves, the two output ports of the diverter are respectively provided with second limiting grooves, the tops of the two inner shells of the air outlet duct are both provided with first limiting protrusions, and the bottoms of the two inner shells of the air outlet duct are both provided with second limiting protrusions;

[0009] When the two inner shells of the air outlet duct rotate relatively, the two first limiting protrusions move in their respective first limiting grooves, and the two second limiting protrusions move in their respective second limiting grooves.

[0010] Preferably, the air intake assembly comprises an air intake grille and a chassis, the air intake grille is mounted on the chassis, the air intake grille is an annular structure, and the air intake grille and the chassis form a cavity.

[0011] Preferably, the air inlet assembly further includes a filter, and the filter is arranged inside the cavity.

[0012] Preferably, the power assembly comprises a second driver and a wind wheel, the second driver is mounted on the connecting bracket, and the wind wheel is mounted on the driving end of the second driver.

[0013] Preferably, the periphery of the connecting bracket is provided with an opening.

[0014] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0015] This solution realizes the relative rotation of the inner shells of the two air outlet ducts through the mutual cooperation of the first driver, the two first gears and the two second gears, so as to change the size of the two air outlet ducts and the width of the duct curve, thereby realizing the adjustment of the air outlet speed and air volume of the air purifier bladeless fan. Compared with the existing method of adjusting the air outlet speed and air volume of the bladeless fan by changing the length of the air outlet duct, this solution can adjust the air outlet speed and air volume of the air purifier bladeless fan according to different usage conditions, thereby improving the flexibility of the use of the air purifier bladeless fan; under the condition of the same power and the same length of the air outlet duct, the air flow path and speed can be controlled more accurately, thereby reducing the wind resistance of the air outlet, reducing the noise of the air purifier bladeless fan, and improving the purification efficiency of the air purifier bladeless fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of an air-cleaning bladeless fan with a variable air duct;

[0017] Figure 2 yes Figure 1 A partial enlarged view of the middle A area;

[0018] Figure 3 It is a partial exploded view of one embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of one embodiment of the utility model;

[0020] Figure 5 yes Figure 4 The cross-sectional view along the BB direction;

[0021] Figure 6 yes Figure 4 Cross-sectional view along CC direction;

[0022] Figure 7 It is a side view of one embodiment of the utility model;

[0023] Figure 8 yes Figure 7 Cross-sectional view along DD direction.

[0024] Among them, 1. air inlet assembly; 2. deflector; 3. connecting bracket; 4. power assembly; 5. diverter; 6. outer shell of air outlet duct; 7. inner shell of air outlet duct; 8. first gear; 9. second gear; 10. first driver; 11. air inlet grille; 12. chassis; 13. cavity; 14. filter; 30. opening; 41. second driver; 42. wind wheel; 61. first limiting slot; 51. input port; 52. output port; 71. first limiting protrusion; 72. second limiting protrusion; 100. air outlet duct; 520. second limiting slot; 1000. air outlet. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0026] In the description of the present invention, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, the meaning of "plurality" is more than two.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "splicing", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] A variable air duct air-purifying bladeless fan, comprising an air inlet assembly 1, a deflector 2, a connecting bracket 3, a power assembly 4, a flow splitter 5, an air outlet duct outer shell 6, at least two air outlet duct inner shells 7, at least two first gears 8, at least two second gears 9 and a first driver 10, wherein the flow splitter 5 is provided with an input port 51 and at least two output ports 52;

[0030] The bottom of the deflector 2 is connected to the air inlet assembly 1, and the air inlet assembly 1 is used to allow air to enter the interior of the air-purifying bladeless fan. The top of the deflector 2 is connected to the input port 51 of the diverter 5 through the connecting bracket 3. The power assembly 4 is arranged on the connecting bracket 3, and the power assembly 4 is used to provide power to the air-purifying bladeless fan.

[0031] The bottom of the left and right sides of the outer shell 6 of the air outlet duct are respectively installed on the two output ports 52 of the diverter 5, the two first gears 8, the two second gears 9 and the first driver 10 are all arranged on the top of the outer shell 6 of the air outlet duct, the driving end of the first driver 10 is connected to one of the first gears 8, the two first gears 8 are meshed with each other and symmetrically distributed on the left and right, the two second gears 9 are symmetrically distributed on the left and right, the two second gears 9 are respectively meshed with the respective first gears 8, the tops of the two inner shells 7 of the air outlet duct are respectively rotatably installed on the respective second gears 9, the bottoms of the two inner shells 7 of the air outlet duct are respectively rotatably installed on the two output ports 52 of the diverter 5, the outer shell 6 of the air outlet duct and the two inner shells 7 of the air outlet duct form two outlet ducts 100, and the front ends of the two sides of the outer shell 6 of the air outlet duct and the front ends of the two inner shells 7 of the air outlet duct form two air outlets 1000.

[0032] A variable air duct air-purifying bladeless fan of the present invention, such as Figure 1-6 As shown, in this embodiment, the inner shell 7 of the air outlet duct, the first gear 8, the second gear 9 and the output port 52 of the diverter 5 are all provided with two. By starting the power assembly 4, the entire air-purifying bladeless fan can be powered, so that the external air enters the interior of the air-purifying bladeless fan through the air inlet assembly 1, and then enters the deflector 2. The setting of the deflector 2 can make the air flow quickly to the diverter 5, and the diverter 5 has a diversion effect on the air. In this embodiment, two channels are formed inside the diverter 5, so that the air can be separated into two channels for circulation. The air flows out from the two output ports 52 of the diverter 5 and flows into the two air outlet ducts 100 respectively, and finally is discharged from the two air outlets 1000 to the outside of the air-purifying bladeless fan. When it is necessary to adjust the air outlet speed and air volume of the air-purifying bladeless fan, start the first driver 10. In this embodiment, the first driver 10 is a motor. The first driver 10 drives one of the first gears 8 to rotate, thereby driving the other first gear 8 to rotate. The two first gears 8 rotate in opposite directions. The rotation of the two first gears 8 drives the respective corresponding second gears 9 to rotate. The two second gears 9 rotate in opposite directions, thereby driving the two inner side shells 7 of the air outlet ducts to rotate relative to each other, thereby changing the size of the two air outlet ducts 100 and the width of the duct curve, and being able to adjust the air outlet speed and air volume of the air-purifying bladeless fan according to different usage conditions.

[0033] This solution realizes the relative rotation of the two inner shells 7 of the air outlet ducts through the mutual cooperation of the first driver 10, the two first gears 8 and the two second gears 9, so as to change the size of the two air outlet ducts 100 and the width of the duct curve, thereby realizing the adjustment of the air outlet speed and air volume of the air purifier bladeless fan. Compared with the existing method of adjusting the air outlet speed and air volume of the bladeless fan by changing the length of the air outlet duct, this solution can adjust the air outlet speed and air volume of the air purifier bladeless fan according to different usage conditions, thereby improving the flexibility of the use of the air purifier bladeless fan; under the condition of equal power and equal length of the air outlet duct, the path and speed of air flow can be controlled more accurately, thereby reducing the wind resistance of the air outlet, reducing the noise of the air purifier bladeless fan, and improving the purification efficiency of the air purifier bladeless fan.

[0034] Preferably, the top of the outer shell 6 of the air outlet duct is provided with two first limiting grooves 61, the two output ports 52 of the diverter 5 are respectively provided with second limiting grooves 520, the tops of the two inner shells 7 of the air outlet duct are both provided with first limiting protrusions 71, and the bottoms of the two inner shells 7 of the air outlet duct are both provided with second limiting protrusions 72;

[0035] When the two air outlet duct inner shells 7 rotate relative to each other, the two first limiting protrusions 71 move in their respective first limiting grooves 61 , and the two second limiting protrusions 72 move in their respective second limiting grooves 520 .

[0036] In this embodiment, Figure 4-6 As shown, when the two inner shells 7 of the air outlet duct rotate relative to each other, the two first limiting protrusions 71 move in their respective first limiting grooves 61, and the two second limiting protrusions 72 move in their respective second limiting grooves 520. This can effectively limit the rotation range of the inner shell 7 of the air outlet duct, thereby limiting the size of the air outlet duct 100 and preventing the air outlet duct 100 from being too large, affecting the control of the air outlet wind speed and air volume.

[0037] Preferably, the air intake assembly 1 comprises an air intake grille 11 and a chassis 12, wherein the air intake grille 11 is mounted on the chassis 12, the air intake grille 11 is annular in structure, and the air intake grille 11 and the chassis 12 form a cavity 13. Figure 7-8 As shown, since the air inlet grille 11 is annular in structure, air can enter the interior of the air-purifying bladeless fan from all sides.

[0038] Preferably, the air inlet assembly 1 further comprises a filter screen 14, and the filter screen 14 is arranged inside the cavity 13. Figure 7-8As shown, the filter 14 is a HEPA filter, and the filter 14 can filter out tiny particles in the air, thereby achieving an air purification effect.

[0039] Preferably, the power assembly 4 includes a second driver 41 and a wind wheel 42, wherein the second driver 41 is mounted on the connecting bracket 3, and the wind wheel 42 is mounted on the driving end of the second driver 41. Figure 7-8 As shown, the second driver 41 is a motor. By starting the second driver 41, the second driver 41 drives the wind wheel 42 to rotate, so that external air can be sucked into the interior of the air-purifying bladeless fan.

[0040] Preferably, the periphery of the connecting bracket 3 is provided with an opening 30. Figure 1 As shown, since the motor is mounted on the connecting bracket 3, the setting of the opening 30 is beneficial to the heat dissipation of the motor, thereby reducing the temperature of the motor.

[0041] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. An air-purifying bladeless fan with a variable air duct, characterized in that: It includes an air inlet assembly, a deflector, a connecting bracket, a power assembly, a flow splitter, an outer shell of an air outlet duct, at least two inner shells of the air outlet duct, at least two first gears, at least two second gears and a first driver, wherein the flow splitter is provided with an input port and at least two output ports; The bottom of the deflector is connected to the air inlet assembly, and the air inlet assembly is used to allow air to enter the interior of the air-purifying bladeless fan. The top of the deflector is connected to the input port of the diverter through the connecting bracket. The power assembly is arranged on the connecting bracket, and the power assembly is used to provide power to the air-purifying bladeless fan. The bottoms of the left and right sides of the outer shell of the air outlet duct are respectively installed on the two output ports of the diverter, the two first gears, the two second gears and the first driver are all arranged on the top of the outer shell of the air outlet duct, the driving end of the first driver is connected to one of the first gears, the two first gears are meshed with each other and symmetrically distributed on the left and right, the two second gears are symmetrically distributed on the left and right, the two second gears are respectively meshed with the respective first gears, the tops of the two inner shells of the air outlet duct are respectively rotatably installed on the respective second gears, the bottoms of the two inner shells of the air outlet duct are respectively rotatably installed on the two output ports of the diverter, the outer shell of the air outlet duct and the two inner shells of the air outlet duct form two outlet ducts, and the front ends of the two sides of the outer shell of the air outlet duct and the front ends of the two inner shells of the air outlet duct form two air outlets.

2. The variable air duct air-cleaning bladeless fan according to claim 1, characterized in that: The top of the outer shell of the air outlet duct is provided with two first limiting grooves, the two output ports of the diverter are respectively provided with second limiting grooves, the tops of the two inner shells of the air outlet duct are both provided with first limiting protrusions, and the bottoms of the two inner shells of the air outlet duct are both provided with second limiting protrusions; When the two inner shells of the air outlet duct rotate relatively, the two first limiting protrusions move in their respective first limiting grooves, and the two second limiting protrusions move in their respective second limiting grooves.

3. The variable air duct air-cleaning bladeless fan according to claim 1, characterized in that: The air intake assembly comprises an air intake grille and a chassis. The air intake grille is mounted on the chassis. The air intake grille is in an annular structure. The air intake grille and the chassis form a cavity.

4. The air-cleaning bladeless fan with a variable air duct according to claim 3, characterized in that: The air inlet assembly further includes a filter screen, and the filter screen is arranged inside the cavity.

5. The air-cleaning bladeless fan with a variable air duct according to claim 1, characterized in that: The power assembly includes a second driver and a wind wheel. The second driver is mounted on the connecting bracket, and the wind wheel is mounted on the driving end of the second driver.

6. The air-cleaning bladeless fan with a variable air duct according to claim 1, characterized in that: The periphery of the connecting bracket is provided with an opening.

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