Bladeless fan

Abstract

This utility model discloses a bladeless fan, including a housing, a fan assembly, a purification module, and a baffle device. The housing has an air inlet, a first air outlet, and a second air outlet. The fan assembly is located inside the housing. The purification module is located inside the housing and is used to purify the air flowing from the air inlet to the first and second air outlets. The baffle device is rotatably or linearly up and down on the housing to open or close the second air outlet. This utility model can meet the requirement of large purification capacity.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a bladeless fan. Background Art

[0002] Bladeless fans have been used in areas such as homes and offices, and have achieved the functions of blowing air to cool down and purify the air in the area.

[0003] In the related art, the existing bladeless fan only has an air outlet that is always open and faces the user, and has a weak purification capability and cannot meet the demand for large purification volumes. Utility Model Content

[0004] The main purpose of the utility model is to provide a bladeless fan, aiming to meet the demand for large purification volume.

[0005] In order to achieve the above-mentioned object, the utility model proposes a bladeless fan, which is characterized by comprising:

[0006] A housing, provided with an air inlet, a first air outlet, and a second air outlet;

[0007] A fan assembly is disposed in the housing;

[0008] a purification module, disposed in the housing, and configured to purify air flowing from the air inlet to the first air outlet and the second air outlet;

[0009] The wind shielding device is arranged on the shell body so as to be rotatable or linearly movable up and down to open or close the second air outlet.

[0010] In an embodiment of the present utility model, the shell is provided with a mounting groove, the mounting groove is located on the inner side of the first air outlet, and the wind shielding device is rotatably disposed in the mounting groove.

[0011] In one embodiment of the utility model, a plurality of the second air outlets are provided, and the plurality of the second air outlets are distributed along the circumference of the shell, and a plurality of the wind shielding devices are provided, and the plurality of the wind shielding devices are distributed in the installation groove along the circumference of the shell.

[0012] In one embodiment of the utility model, two opposite groove walls of the mounting groove are provided with a lower shaft hole and an upper shaft hole; the wind shielding device comprises:

[0013] A lower shaft, one end of which is rotatably inserted into the lower shaft hole;

[0014] A baffle, connected to an end of the lower shaft away from the lower shaft hole;

[0015] An upper shaft, one end of which is connected to an end of the baffle away from the lower shaft, and the other end of which is rotatably inserted into the upper shaft hole.

[0016] In one embodiment of the utility model, when the wind shield device is in the condition of opening the second air outlet, the fan assembly is provided with a wind wheel, and on the same horizontal plane, the angle between the line between the rotation axis of the wind wheel and the rotation axis of the wind shield device and the baffle is 110° to 160°.

[0017] In an embodiment of the present invention, when the wind shielding device is disposed on the housing so as to be able to move up and down linearly, the wind shielding device is located outside the housing.

[0018] In an embodiment of the present invention, the wind shielding device is sleeved on the housing.

[0019] In one embodiment of the present invention, the fan assembly comprises:

[0020] A motor, arranged in the housing;

[0021] A wind wheel, which is transmission-connected to the motor, and the motor drives the wind wheel to rotate;

[0022] The guide vanes are arranged on the wind outlet side of the wind wheel, and are used to guide the air entering from the air inlet to the first air outlet and the second air outlet.

[0023] In an embodiment of the present invention, the fan assembly further includes a protective net, and the protective net is arranged on the wind inlet side of the wind wheel.

[0024] In an embodiment of the present utility model, the fan assembly is provided with a wind wheel, and the second air outlet is arranged close to the wind wheel.

[0025] In an embodiment of the present invention, the second air outlet is located in the radial direction of the wind wheel.

[0026] In the bladeless fan proposed in the utility model, a first air outlet and a second air outlet are arranged on the shell, wherein the first air outlet is a normally open air outlet. When a large amount of purification is required, the wind shield device can be moved in a rotating or linear up and down manner to open the second air outlet, so that the first air outlet and the second air outlet can discharge air at the same time, thereby being able to meet the demand for a large amount of purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 This is a schematic structural diagram of an embodiment of a bladeless fan of the utility model;

[0029] Figure 2 This is a cross-sectional view of an embodiment of the bladeless fan of the utility model when the wind shielding device closes the second air outlet;

[0030] Figure 3 It is a partial structural cross-sectional view of an embodiment of the bladeless fan of the utility model when the wind shielding device closes the second air outlet;

[0031] Figure 4 It is a partial structural schematic diagram of an embodiment of the bladeless fan of the utility model when the wind shielding device closes the second air outlet;

[0032] Figure 5 for Figure 4 A is a partial enlarged view of the middle;

[0033] Figure 6 It is a partial structural schematic diagram of an embodiment of the bladeless fan of the utility model when the wind shielding device opens the second air outlet;

[0034] Figure 7 for Figure 6 A partial enlarged view of point B in the middle;

[0035] Figure 8 This is a cross-sectional view of an embodiment of the bladeless fan of the utility model when the light shielding device closes the second air outlet;

[0036] Fig. 9 It is a cross-sectional view of an embodiment of the bladeless fan of the utility model when the wind shielding device opens the second air outlet;

[0037] Fig.10 It is a cross-sectional view of another embodiment of the bladeless fan of the utility model when the wind shielding device opens the second air outlet;

[0038] Fig.11 This is a structural schematic diagram of another embodiment of the bladeless fan of the utility model when the wind shielding device closes the second air outlet;

[0039] Fig.12 This is a structural schematic diagram of another embodiment of the bladeless fan of the utility model when the wind shielding device opens the second air outlet;

[0040] Fig.13 It is a cross-sectional view of another embodiment of the bladeless fan of the utility model when the wind shielding device closes the second air outlet;

[0041] Fig.14 It is a cross-sectional view of another embodiment of the bladeless fan of the utility model when the wind shielding device opens the second air outlet;

[0042] Fig.15 It is a cross-sectional view of another embodiment of the bladeless fan of the utility model;

[0043] Fig.16 It is a partial structural schematic diagram of another embodiment of the bladeless fan of the utility model.

[0044] Description of Figure Numbers:

[0045] Label name Label name 100 Bladeless fan 20 Fan components 10 case 21 Motor 11 Air Inlet 22 Wind wheel 12 First air outlet 23 Guide vanes 121 Air outlet 24 Protective net 13 Second air outlet 30 Purification module 14 Air outlet duct 40 Windshield 141 Air duct 41 Lower shaft 15 Mounting slot 42 Bezel 16 Air duct front shell 43 Upper axis 17 Air duct back shell

[0046] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0049] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their 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 at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0050] The utility model provides a bladeless fan 100, aiming to meet the demand for large purification volume.

[0051] Combined with reference Figures 1 to 15 In one embodiment of the bladeless fan 100 of the utility model, the bladeless fan 100 includes a shell 10, a fan assembly 20, a purification module 30 and a wind shield 40; the shell 10 is provided with an air inlet 11, a first air outlet 12 and a second air outlet 13; the fan assembly 20 is arranged in the shell 10; the purification module 30 is arranged in the shell 10, and the purification module 30 is used to purify the air flowing from the air inlet 11 to the first air outlet 12 and the second air outlet 13; the wind shield 40 is rotatably or linearly movable up and down and arranged on the shell 10 to open or close the second air outlet 13.

[0052] It can be understood that in the bladeless fan 100 proposed in the present invention, a first air outlet 12 and a second air outlet 13 are arranged on the shell 10, wherein the first air outlet 12 is a normally open air outlet. When a large amount of purification is required, the wind shielding device 40 can be moved in a rotating or linear up and down manner to open the second air outlet 13, so that the first air outlet 12 and the second air outlet 13 can discharge air at the same time, thereby being able to meet the demand for a large amount of purification.

[0053] In some embodiments, the first air outlet 12 can be facing a first direction of the shell 10, and the second air outlet 13 can be facing a second direction of the shell 10. When the bladeless fan 100 is in use, the first direction is towards the user, and the second direction is towards the non-user, so the first air outlet 12 is facing the user, and the second air outlet 13 is facing the non-user.

[0054] It should be noted that when it is necessary to achieve blowing air to cool down while ensuring a small purification effect, the second air outlet 13 can be closed by the wind shielding device 40. At this time, the bladeless fan 100 only opens the first air outlet 12 towards the user, and the second air outlet 13 towards the non-user direction is in a closed state, thereby achieving blowing air to cool down while ensuring a small purification effect.

[0055] In this embodiment, when the fan assembly 20 is working, it can suck air from the outside into the interior of the shell 10 through the air inlet 11, and discharge the air from the first air outlet 12 and the second air outlet 13. During this process, the incoming air can be purified by the purification module 30 to reduce impurities in the air discharged from the first air outlet 12 and the second air outlet 13, so that the bladeless fan 100 can achieve the functions of blowing air to cool down and purifying the air.

[0056] It should be noted that the purification module 30 is an existing common air purification module 30, for example, it can be at least one of a water ion generating module and a negative ion generating module, which has a good air purification effect and will not be described in detail.

[0057] In some embodiments, in order to better support the purification module 30, a base can be provided at the bottom of the shell 10, and the base can at least partially extend from the bottom of the shell 10 into the interior of the shell 10. In this way, the purification module 30 can be installed on the base to effectively support the purification module 30 through the base, thereby improving the installation reliability of the purification module 30.

[0058] In actual application, the air inlet 11 can be specifically arranged at the front side, rear side, left side, right side, top, etc. of the housing 10. In some embodiments, in order to ensure aesthetics and air intake effect, the air inlet 11 can be arranged near the bottom of the housing 10, and a plurality of air inlets 11 can be spaced apart along the circumference of the housing 10.

[0059] In some embodiments, in order to ensure the purification effect of the purification module 30 on the air, the purification module 30 can be arranged on the inner side of the air inlet 11 and arranged around the circumference of the shell 10.

[0060] In actual application, the first air outlet 12 can also be specifically set at the front side, rear side, left side, right side, top and other positions of the shell 10, as long as the first air outlet 12 is facing a first direction towards the user; similarly, the second air outlet 13 can also be specifically set at the front side, rear side, left side, right side, top and other positions of the shell 10, as long as the second air outlet 13 is facing a second direction not towards the user.

[0061] In some embodiments, the user is usually located in the front area of ​​the bladeless fan 100 when using the bladeless fan 100, so the front of the bladeless fan 100 is usually the first direction, and other directions can be collectively referred to as the second direction towards the non-user direction. In this way, the first air outlet 12 can be set on the front side of the shell 10, and the first air outlet 12 can be set close to the middle and upper parts of the shell 10. When the bladeless fan 100 is turned on, the air discharged from the first air outlet 12 can be better blown to the user, so as to achieve a better effect of blowing air and cooling down.

[0062] In some embodiments, in order to meet the demand for a larger amount of purification, a plurality of second air outlets 13 may be distributed at intervals along the circumference of the shell 10, as long as the position of the second air outlets 13 avoids the area where the user is located. For example, the second air outlets 13 may be arranged close to the middle and lower part of the shell 10.

[0063] Optionally, see Figure 1In some embodiments, since the bladeless fan 100 is usually placed on the ground for use, and the position where the user needs to cool down usually corresponds to the middle and upper part of the bladeless fan 100, by setting the first air outlet 12 above the second air outlet 13, the first air outlet 12 can be set close to the middle and upper part of the shell 10, and the second air outlet 13 can be set close to the middle and lower part of the shell 10. Such a setting is not only beautiful, but also can ensure that the air discharged from the first air outlet 12 is better blown to the position where the user needs to cool down, and ensure that the air discharged from the second air outlet 13 will not blow to the position where the user needs to cool down, thereby realizing the function of not blowing air to the user during purification.

[0064] In some embodiments, an air outlet duct 14 is provided in the shell 10, and the air inlet 11 can be connected to the first air outlet 12 through the air outlet duct 14. In this way, the air entering from the air inlet 11 can be diverted to the second air outlet 13 and the air outlet duct 14 after being purified by the purification module 30, and the air in the air outlet duct 14 is finally discharged outward from the first air outlet 12.

[0065] Optionally, the first air outlet 12 may include at least two sub-air outlets 121, and the air outlet duct 14 includes at least two sub-air outlets 141, and each sub-air outlet 141 is connected to the air inlet 11 and a sub-air outlet 121. In this way, by making the first air outlet 12 include at least two sub-air outlets 121, so that at least two sub-air outlets 121 blow air in the direction of the user, the area blowing air to the user can be expanded to enhance the effect of blowing air and cooling off.

[0066] Optionally, see Fig.16 The shell 10 may include a bottom shell, a front shell 16 of the air duct and a rear shell 17 of the air duct, wherein the fan assembly 20 and the purification module 30 are both arranged on the bottom shell, the wind shielding device 40 is arranged inside or outside the bottom shell, the front shell 16 of the air duct and the rear shell 17 of the air duct cover each other to form at least two branch air ducts 141 and at least two branch air ports 121, and the front shell 16 of the air duct and the rear shell 17 of the air duct are both arranged on the top of the bottom shell.

[0067] Optionally, see Figure 5 , Figures 6 to 10 In one embodiment of the bladeless fan 100 of the present invention, the housing 10 is provided with a mounting groove 15 , the mounting groove 15 is located on the inner side of the first air outlet 12 , and the wind shielding device 40 is rotatably disposed in the mounting groove 15 .

[0068] In this way, by rotatably installing the wind shielding device 40 in the installation slot 15, interference between the wind shielding device 40 and other structures (such as the fan assembly 20) during the rotation process can be avoided.

[0069] In actual application, the wind shielding device 40 may be completely accommodated in the mounting groove 15 of the shell 10 , or may be partially accommodated in the mounting groove 15 of the shell 10 .

[0070] Optionally, see Figures 8 to 10 In one embodiment of the bladeless fan 100 of the present invention, a plurality of second air outlets 13 are provided, and the plurality of second air outlets 13 are distributed along the circumference of the shell 10 , and a plurality of wind shielding devices 40 are provided, and the plurality of wind shielding devices 40 are distributed in the mounting groove 15 along the circumference of the shell 10 .

[0071] With such an arrangement, by distributing a plurality of wind shielding devices 40 along the axial direction of the shell 10, not only can the opening or closing of the plurality of second air outlets 13 be achieved, but also the area crossed by the wind shielding device 40 during rotation can be reduced, thereby eliminating the need to reserve a larger space inside the shell 10 for the wind shielding device 40 to rotate, and thus reducing the volume of the bladeless fan 100.

[0072] In actual application, the plurality of wind shielding devices 40 may rotate synchronously or individually.

[0073] Optionally, see Figures 5 to 7 In one embodiment of the bladeless fan 100 of the present invention, two opposite groove walls of the mounting groove 15 are provided with a lower shaft hole (not shown in the figure) and an upper shaft hole (not shown in the figure); the wind shielding device 40 includes a lower shaft 41, a baffle 42 and an upper shaft 43; one end of the lower shaft 41 is rotatably inserted in the lower shaft hole; the baffle 42 is connected to one end of the lower shaft 41 away from the lower shaft hole; one end of the upper shaft 43 is connected to one end of the baffle 42 away from the lower shaft 41, and the other end of the upper shaft 43 is rotatably inserted in the upper shaft hole.

[0074] In this arrangement, by rotatably inserting the lower shaft 41 into the lower shaft hole and rotatably inserting the upper shaft 43 into the upper shaft hole, the wind shield device 40 can be limited by the cooperation between the lower shaft 41 and the upper shaft hole, and by the cooperation between the upper shaft 43 and the upper shaft hole, so as to improve the stability of the wind shield device 40 during rotation.

[0075] In some embodiments, the baffle 42 and the upper shaft 43 and the lower shaft 41 may be an integrally formed structure, which not only ensures the connection strength between the baffle 42 and the upper shaft 43 and the lower shaft 41 but also simplifies the preparation process.

[0076] In some embodiments, a lower limit column and an upper limit column may be respectively provided on two opposite groove walls of the installation groove 15, so that a lower shaft hole is provided at the end of the lower limit column, and an upper shaft hole is provided at the end of the upper limit column.

[0077] Optionally, see Fig.10In one embodiment of the bladeless fan 100 of the utility model, when the wind shield 40 is in the condition of opening the second air outlet 13, the fan assembly 20 is provided with a wind wheel 22, and on the same horizontal plane, the angle α between the line connecting the rotation axis of the wind shield 40 and the baffle 42 is 110° to 160°. Specifically, the angle α between the line connecting the rotation axis of the wind shield 40 and the baffle 42 can be 110°, 120°, 130°, 140°, 150°, 160°, etc.

[0078] By configuring in this way, the angle α between the line connecting the rotation axis of the wind wheel 22 and the rotation axis of the wind shield device 40 and the baffle 42 is controlled to be between 110° and 160°, so that the inclined baffle 42 can play a role in guiding the wind, so that the air can be quickly discharged outward from the second air outlet 13.

[0079] Optionally, see Figures 11 to 15 In another embodiment of the bladeless fan 100 of the present invention, when the wind shielding device 40 is disposed on the housing 10 so as to be movable vertically in a straight line, the wind shielding device 40 is located outside the housing 10 .

[0080] With such arrangement, the windshield device 40 can also open or close the second air outlet 13 by moving up and down in a straight line, and by installing the windshield device 40 on the outside of the shell 10, it is easier to move the windshield device 40 up and down in a straight line.

[0081] In actual application, the windshield device 40 can be driven manually or mechanically to move up and down in a straight line.

[0082] Optionally, see Figures 11 to 15 In one embodiment of the bladeless fan 100 of the present invention, the wind shielding device 40 is sleeved on the housing 10 .

[0083] In order to meet the demand for large purification volume, a plurality of second air outlets 13 are usually arranged in the circumference of the shell 10. In this way, by sleeved on the outside of the shell 10, the wind shield device 40 can realize the function of simultaneously opening or closing the plurality of second air outlets 13.

[0084] In actual application, the cross-sectional shape of the windshield device 40 can be roughly circular, rectangular, triangular, etc., and can be specifically set according to the shape of the housing 10, as long as it matches the shape of the housing 10. Optionally, the windshield device 40 can be set as a cylindrical structure according to the shape of the housing 10.

[0085] In some embodiments, in order to improve the stability of the windshield device 40 during its straight up and down movement, a slide groove may be provided on one of the outer side of the shell 10 and the inner side of the windshield device 40, and a slider may be provided on the other side, so that the windshield device 40 can be smoothly lifted and lowered by the sliding cooperation between the slider and the slide groove.

[0086] In one embodiment, in conjunction with reference to Figures 1 to 10 , the windshield device 40 is rotatably provided on the shell 10 to open or close the second air outlet 13. Specifically, when the windshield device 40 rotates continuously in the clockwise direction, the distance between the two adjacent baffles 42 becomes smaller and smaller until it is zero. At this time, the opening degree of the second air outlet 13 is zero, and the air in the shell 10 will be blown out from the first air outlet 12 to achieve the function of blowing air and cooling down with a small purification amount. When the windshield device 40 rotates continuously in the counterclockwise direction, the distance between the two adjacent baffles 42 becomes larger and larger until all the baffles 42 are radial. At this time, the opening degree of the second air outlet 13 is the largest, and the air in the shell 10 will be discharged from the first air outlet 12 and the second air outlet 13 at the same time to achieve the function of a large purification amount.

[0087] In another embodiment, in conjunction with reference to Figures 11 to 16 , the windshield device 40 can be linearly moved up and down and is arranged on the shell 10 to open or close the second air outlet 13. Specifically, when the windshield device 40 moves downward, the windshield device 40 continuously blocks the second air outlet 13 until all the second air outlets 13 are completely blocked. At this time, the opening degree of the second air outlet 13 is zero, and the air in the shell 10 will be blown out from the first air outlet 12 to achieve the function of blowing air and cooling down with a small purification amount. When the windshield device 40 moves upward, the area of ​​the second air outlet 13 blocked by the windshield device 40 becomes smaller and smaller until the second air outlet 13 is completely unblocked. At this time, the opening degree of the second air outlet 13 is the largest, and the air in the shell 10 will be discharged from the first air outlet 12 and the second air outlet 13 at the same time to achieve the function of a large purification amount.

[0088] Optionally, see Figure 2 , Figure 3 , Fig.13 , Fig.14 In one embodiment of the bladeless fan 100 of the utility model, the fan assembly 20 includes a motor 21, a wind wheel 22 and a guide vane 23; the motor 21 is arranged on the housing 10; the wind wheel 22 is transmission-connected to the motor 21, and the motor 21 drives the wind wheel 22 to rotate; the guide vane 23 is arranged on the air outlet side of the wind wheel 22, and is used to guide the air entering from the air inlet 11 to the first air outlet 12 and the second air outlet 13.

[0089] With such an arrangement, when the motor 21 rotates, it can drive the wind wheel 22 to rotate. When the wind wheel 22 rotates, wind pressure is generated. The air inlet 11 can generate negative pressure toward the center side of the shell 10, so that the ambient air is sucked into the interior of the shell 10, and the incoming air is purified by the purification module 30. At the same time, positive pressure is generated at the first air outlet 12 and the second air outlet 13. The guide vane 23 can be used to adjust the direction of the wind blown out by the wind wheel 22, so that the air can be better guided to the first air outlet 12 and the second air outlet 13 under the guidance of the guide vane 23, so that the air inside the shell 10 is blown out from the first air outlet 12 and the second air outlet 13.

[0090] Optionally, see Figure 2 , Figure 3 , Fig.13 , Fig.14 In one embodiment of the bladeless fan 100 of the present invention, the fan assembly 20 further includes a protective net 24 , which is disposed on the air inlet side of the wind wheel 22 .

[0091] In this way, by providing a protective net 24 on the air inlet side of the wind wheel 22 , foreign matter in the air can be prevented from entering the wind wheel 22 and the motor 21 to cause damage to the wind wheel 22 and the motor 21 .

[0092] Optionally, see Figure 2 , Figure 3 , Fig.13 , Fig.14 In one embodiment of the bladeless fan 100 of the present invention, the fan assembly 20 is provided with a wind wheel 22 , and the second air outlet 13 is arranged close to the wind wheel 22 .

[0093] In this way, by arranging the second air outlet 13 close to the wind wheel 22, the airflow loss of the air discharged from the second air outlet 13 can be reduced, which can better meet the demand for a large purification volume.

[0094] It should be noted that the second air outlet 13 is disposed close to the wind wheel 22 , which specifically means that the distance between the second air outlet 13 and the wind wheel 22 is less than or equal to 10 mm.

[0095] In actual application, the second air outlet 13 may be provided corresponding to the wind wheel 22 , or may be located obliquely above or below the wind wheel 22 .

[0096] Optionally, see Figure 2 , Figure 3 , Fig.13 , Fig.14 In one embodiment of the bladeless fan 100 of the present invention, the second air outlet 13 is located in the radial direction of the wind wheel 22 .

[0097] In this way, by setting the second air outlet 13 in the radial direction of the wind wheel 22, the air sucked in by the wind wheel 22 during rotation can be discharged from the first air outlet 12 more quickly, so that the airflow loss of the air discharged from the second air outlet 13 is smaller, which can better meet the demand for large purification volume.

[0098] In some embodiments, since the wind wheel 22 has a certain axial height, in order to meet the demand for a larger purification amount, a plurality of second air outlets 13 may be distributed at intervals along the axial height of the wind wheel 22 .

[0099] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A bladeless fan, characterized in that: include: A shell body, provided with an air inlet, a first air outlet, and a second air outlet; A fan assembly is disposed in the housing; a purification module, disposed in the housing, and configured to purify air flowing from the air inlet to the first air outlet and the second air outlet; A wind shielding device is provided on the housing so as to be rotatable or linearly movable up and down to open or close the second air outlet; When the windshield device is rotatably disposed on the shell, the shell is provided with a mounting groove, the mounting groove is located on the inner side of the first air outlet, and the windshield device is rotatably disposed in the mounting groove; a plurality of second air outlets are provided, and the plurality of second air outlets are distributed along the circumference of the shell, and a plurality of windshield devices are provided, and the plurality of windshield devices are distributed in the mounting groove along the circumference of the shell; Alternatively, when the wind shielding device is disposed on the shell so as to be linearly movable up and down, the wind shielding device is located outside the shell.

2. The bladeless fan according to claim 1, characterized in that: The two opposite groove walls of the mounting groove are provided with a lower shaft hole and an upper shaft hole; the wind shielding device comprises: A lower shaft, one end of which is rotatably inserted into the lower shaft hole; A baffle, connected to an end of the lower shaft away from the lower shaft hole; An upper shaft, one end of which is connected to an end of the baffle away from the lower shaft, and the other end of which is rotatably inserted into the upper shaft hole.

3. The bladeless fan according to claim 2, characterized in that: When the wind shield is in the condition of opening the second air outlet, the fan assembly is provided with a wind wheel. On the same horizontal plane, the angle between the line between the rotation axis of the wind wheel and the rotation axis of the wind shield and the baffle is 110° to 160°.

4. The bladeless fan according to claim 1, characterized in that: When the wind shielding device is arranged on the shell body so as to be able to move up and down linearly, the wind shielding device is sleeved on the shell body.

5. The bladeless fan according to any one of claims 1 to 4, characterized in that: The fan assembly comprises: A motor, arranged in the housing; A wind wheel, which is transmission-connected to the motor, and the motor drives the wind wheel to rotate; The guide vanes are arranged on the wind outlet side of the wind wheel, and are used to guide the air entering from the air inlet to the first air outlet and the second air outlet.

6. The bladeless fan according to claim 5, characterized in that: The fan assembly also includes a protective net, which is arranged on the wind inlet side of the wind wheel.

7. The bladeless fan according to any one of claims 1 to 4, characterized in that: The fan assembly is provided with a wind wheel, and the second air outlet is arranged close to the wind wheel.

8. The bladeless fan according to claim 7, characterized in that: The second air outlet is located in the radial direction of the wind wheel.

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