Bladeless fan

Abstract

The utility model discloses a bladeless fan which comprises a shell, a fan assembly, a purification module, a first wind shielding device and a second wind shielding device. The shell is provided with an air inlet, a first air outlet and a second air outlet; the fan assembly is arranged in the shell; the purification module is arranged in the shell and used for purifying air flowing from the air inlet to the first air outlet and the second air outlet; the first air blocking device is movably arranged on the shell so as to open or close the first air outlet; the second air blocking device is movably arranged on the shell so as to open or close the second air outlet. According to the technical scheme, the requirement for large purification amount can be met during purification.

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] Traditional bladeless fans have a small air output and cannot meet large purification volume requirements. 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 during purification.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a bladeless fan, 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] A first wind shielding device, movably disposed on the housing to open or close the first air outlet;

[0010] The second wind shielding device is movably disposed on the shell to open or close the second air outlet.

[0011] In an embodiment of the present utility model, the shell is further provided with an air outlet duct, the air outlet duct connects the air inlet and the first air outlet, and the first wind shielding device is arranged on the inner side of the first air outlet.

[0012] In one embodiment of the present invention, the housing comprises:

[0013] A housing, provided with the air inlet, the first air outlet and the second air outlet;

[0014] An inner shell is arranged inside the outer shell and encloses the outer shell to form the air outlet duct. The first wind shielding device moves relative to the outer shell and has a first position and a second position.

[0015] Wherein, when the first wind shielding device is in the first position, the first air outlet is opened, and the first wind shielding device forms a part of the air outlet duct; when the first wind shielding device is in the second position, the first air outlet is closed.

[0016] In one embodiment of the utility model, the first air outlet includes at least two sub-air outlets, the air outlet duct connects the air inlet and at least two of the sub-air outlets, and the first wind shielding device includes at least two wind shielding structures, each of the wind shielding structures is arranged on the inner side of one of the sub-air outlets, and is used to open or close one of the sub-air outlets.

[0017] In one embodiment of the present invention, the wind shielding structure comprises:

[0018] A first driving part, disposed on the housing;

[0019] The first movable door is transmission-connected to the first driving unit, and the first driving unit drives the first movable door to rotate so that the first movable door opens or closes the corresponding air distribution outlet.

[0020] In an embodiment of the present invention, the housing is provided with at least two first limiting grooves, and each of the first movable doors rotates in one of the first limiting grooves.

[0021] In one embodiment of the present invention, the first driving unit comprises:

[0022] A first motor is disposed in the housing;

[0023] A first gear, transmission-connected to the first motor;

[0024] a transmission gear meshing with the first gear;

[0025] A first rotating shaft, one end of which is connected to the transmission gear, and the first rotating shaft is extended along the height direction of the shell; the first movable door is connected to the first rotating shaft to rotate with the first rotating shaft.

[0026] In one embodiment of the utility model, the end of the transmission gear away from the first rotating shaft is provided with a first limiting hole, the housing is provided with a first limiting column, and the first limiting column is inserted into the first limiting hole;

[0027] And / or, a second limiting hole is provided at the end of the first rotating shaft away from the transmission gear, and a second limiting column is provided on the housing, and the second limiting column is inserted into the second limiting hole.

[0028] In an embodiment of the present utility model, a collector is provided in the shell, and the collector is arranged on the air inlet side of the fan assembly.

[0029] In an embodiment of the present invention, the second wind shielding device can be movably disposed on the collector to open or close the second air outlet.

[0030] In one embodiment of the present invention, the second wind shielding device comprises:

[0031] A second driving unit, provided on the current collector;

[0032] The second movable door is transmission-connected to the second driving unit, and the second driving unit drives the second movable door to rise and fall, so that the second movable door opens or closes the second air outlet.

[0033] In an embodiment of the present utility model, the collector is provided with a second limiting groove, and the second movable door is lifted and lowered in the second limiting groove.

[0034] In one embodiment of the present invention, the second driving unit includes:

[0035] A second motor, disposed on the current collector;

[0036] A second gear part, drivingly connected to the second motor, and the second motor drives the second gear part to rotate;

[0037] The rack is provided on the second movable door and is spirally extended from bottom to top along the circumference of the second movable door. The rack is meshed with the second gear part.

[0038] In one embodiment of the utility model, the collector is provided with a limiting protrusion, the second movable door is provided with a track, the extension direction of the track is consistent with the extension direction of the rack, and the track is spaced apart from the rack, and the limiting protrusion is slidably matched with the track.

[0039] In one embodiment of the present invention, the second gear portion comprises:

[0040] A second gear, transmission-connected to the second motor;

[0041] a lower gear meshing with the second gear;

[0042] a second rotating shaft, one end of which is connected to the lower gear;

[0043] An upper gear is connected to an end of the second rotating shaft away from the lower gear, and the rack is meshed with the upper gear.

[0044] In one embodiment of the utility model, the end of the lower gear away from the second rotating shaft is provided with a third limiting hole, the current collector is provided with a third limiting column, and the third limiting column is inserted into the third limiting hole;

[0045] And / or, a fourth limiting hole is provided at the end of the upper gear away from the second rotating shaft, and the current collector is provided with a fourth limiting column, and the fourth limiting column is inserted into the fourth limiting hole.

[0046] In an embodiment of the present invention, the fan assembly is provided with a wind wheel, and the second air outlet is arranged close to the wind wheel and is located in the radial direction of the wind wheel.

[0047] In the bladeless fan proposed by the utility model, a first air outlet and a second air outlet are arranged on the shell, and a first wind shield device for opening or closing the first air outlet and a second wind shield device for opening or closing the second air outlet are provided. In this way, in the purification mode, the first air outlet can be opened by the first wind shield device, and the second air outlet can be opened by the second wind shield device, so that the first air outlet and the second air outlet can discharge air at the same time, realizing a large air outlet volume, and the wind speed is relatively low at this time, thereby being able to meet the demand for a large purification volume.

[0048] In the fan mode, the first air outlet can be opened by the first wind shielding device, and the second air outlet can be closed by the second wind shielding device, so that the airflow can be discharged from the narrow first air outlet at the front side to achieve long-distance high-speed blowing. When the first air outlet is closed by the first wind shielding device and the second air outlet is opened by the second wind shielding device, the second air outlet can be made to discharge air to provide air for a long distance and achieve the function of cooling.

[0049] In addition, when the bladeless fan is in an idle state, the first air outlet can be closed by the first wind shield device, and the second air outlet can be closed by the second wind shield device, so that all air outlets can be in a closed state, thereby preventing external dust from entering the air outlet duct of the shell from the first air outlet and the second air outlet, thereby preventing external dust from causing secondary pollution to the air flowing through the air outlet duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] 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.

[0051] Figure 1 This is a schematic structural diagram of an embodiment of a bladeless fan of the utility model;

[0052] Figure 2 It is a partial structural schematic diagram of an embodiment of the bladeless fan of the utility model;

[0053] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0054] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0055] Figure 5 This is a cross-sectional view of an embodiment of the bladeless fan of the utility model when the first wind shielding device closes the first air outlet;

[0056] Figure 6 It is a cross-sectional view of an embodiment of the bladeless fan of the utility model when one wind shield structure closes one air outlet and the other wind shield structure opens one air outlet;

[0057] Figure 7 It is a planar cross-sectional view of an embodiment of the bladeless fan of the utility model when the second wind shielding device opens the second air outlet;

[0058] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0059] Fig. 9 It is a planar cross-sectional view of an embodiment of the bladeless fan of the utility model when the second wind shielding device closes the second air outlet;

[0060] Fig.10 for Fig. 9 A partial enlarged view of point D in the middle;

[0061] Fig.11 This is a three-dimensional cross-sectional view of an embodiment of the bladeless fan of the utility model when the first wind shielding device closes the first air outlet and the second wind shielding device opens the second air outlet;

[0062] Fig.12 This is a three-dimensional cross-sectional view of an embodiment of the bladeless fan of the utility model when the first wind shielding device closes the first air outlet and the second wind shielding device closes the second air outlet;

[0063] Fig.13 It is a partial structural schematic diagram of an embodiment of the bladeless fan of the utility model when the second wind shielding device opens the second air outlet;

[0064] Fig.14 It is a partial structural schematic diagram of an embodiment of the bladeless fan of the utility model when the second wind shielding device closes the second air outlet;

[0065] Fig.15 It is a partial structural cross-sectional view of an embodiment of the bladeless fan of the utility model when the second movable door is in the process of rising;

[0066] Fig.16 This is a partial structural schematic diagram of an embodiment of the bladeless fan of the utility model when the second movable door rises to close the second air outlet.

[0067] Description of Figure Numbers:

[0068]

[0069]

[0070] 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

[0071] 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.

[0072] 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.

[0073] 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.

[0074] The utility model provides a bladeless fan 100, which aims to achieve the function of not blowing air toward a user during purification.

[0075] Combined with reference Figures 1 to 10In 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, a first wind shield device 40 and a second wind shield device 50; 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 first wind shield device 40 can be movably arranged in the shell 10 to open or close the first air outlet 12; the second wind shield device 50 can be movably arranged in the shell 10 to open or close the second air outlet 13.

[0076] It can be understood that in the bladeless fan 100 proposed in the utility model, a first air outlet 12 and a second air outlet 13 are arranged on the shell 10, and a first wind shield device 40 for opening or closing the first air outlet 12 and a second wind shield device 50 for opening or closing the second air outlet 13 are provided. In this way, in the purification mode, the first air outlet 12 can be opened by the first wind shield device 40, and the second air outlet 13 can be opened by the second wind shield device 50, so that the first air outlet 12 and the second air outlet 13 can discharge air at the same time, achieving a large air outlet volume, and the wind speed is relatively low at this time, thereby being able to meet the demand for a large purification volume.

[0077] In the fan mode, the first air outlet 12 can be opened by the first wind shielding device 40, and the second air outlet 13 can be closed by the second wind shielding device 50, so that the airflow can be discharged from the narrow first air outlet 12 at the front side, so as to achieve long-distance high wind speed blowing. When the first air outlet 12 is closed by the first wind shielding device 40 and the second air outlet 13 is opened by the second wind shielding device 50, the second air outlet 13 can be made to discharge air, so as to provide air for a long distance and achieve the function of cooling.

[0078] In addition, when the bladeless fan 100 is in an idle state, the first air outlet 12 can be closed by the first wind shield device 40, and the second air outlet 13 can be closed by the second wind shield device 50, so that all the air outlets can be in a closed state, thereby preventing external dust from entering the air outlet duct of the shell 10 from the first air outlet 12 and the second air outlet 13, so as to prevent external dust from causing secondary pollution to the air flowing through the air outlet duct.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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; 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.

[0085] In some embodiments, in order to meet the demand for a larger purification volume, a plurality of second air outlets 13 may be distributed at intervals along the circumference of the shell 10 . Optionally, the second air outlets 13 may be disposed near the middle and lower portion of the shell 10 .

[0086] In actual application, the first windshield device 40 can be moved by rotation, horizontal movement, lifting, etc. to open or close the first air outlet 12. Specifically, the first windshield device 40 can also be driven manually or mechanically.

[0087] In actual application, the second windshield device 50 can also be moved by rotation, horizontal movement, lifting, etc. to open or close the second air outlet 13. Specifically, the second windshield device 50 can be driven manually or mechanically.

[0088] Optionally, see Figure 2 , Figure 5 , Figure 6In one embodiment of the bladeless fan 100 of the present invention, the housing 10 is further provided with an air outlet duct 17 , the air outlet duct 17 connects the air inlet 11 and the first air outlet 12 , and the first wind shielding device 40 is provided on the inner side of the first air outlet 12 .

[0089] With such arrangement, the air entering from the air inlet 11 can be guided to the first air outlet 12 through the air outlet duct 17 so as to be blown smoothly from the first air outlet 12. In addition, by arranging the first wind shielding device 40 on the inner side of the first air outlet 12, it can be avoided that the first wind shielding device 40 occupies the space outside the shell 10, resulting in a large overall volume of the whole machine.

[0090] Optionally, see Figure 2 , Figure 5 , Figure 6 In one embodiment of the bladeless fan 100 of the utility model, the shell 10 includes an outer shell 10a and an inner shell 10b; the outer shell 10a is provided with an air inlet 11, a first air outlet 12 and a second air outlet 13; the inner shell 10b is arranged in the outer shell 10a, and is enclosed with the outer shell 10a to form an air outlet duct 17, and the first wind shielding device 40 is movable relative to the outer shell 10a, and has a first position and a second position; wherein, when the first wind shielding device 40 is in the first position, the first air outlet 12 is opened, and the first wind shielding device 40 forms a part of the air outlet duct 17; when the first wind shielding device 40 is in the second position, the first air outlet 12 is closed.

[0091] In this way, by arranging an inner shell 10b inside the outer shell 10a, an air outlet duct 17 connecting the air inlet 11 and the first air outlet 12 can be formed, thereby facilitating the formation of the air outlet duct 17 inside the shell 10; in addition, when the first wind shielding device 40 moves to the first position, the first air outlet 12 can be opened. At this time, the first wind shielding device 40 can form a part of the air outlet duct 17 to smoothly guide the air flowing through the air outlet duct 17 to the first air outlet 12; when the first wind shielding device 40 moves to the second position, the first air outlet 12 can be closed.

[0092] Optionally, see Figure 5 , Figure 6 In one embodiment of the bladeless fan 100 of the present invention, the first air outlet 12 includes at least two sub-air outlets 121, the air outlet duct 17 connects the air inlet 11 and the at least two sub-air outlets 121, and the first wind shielding device 40 includes at least two wind shielding structures 40a, each wind shielding structure 40a is arranged on the inner side of an air outlet 121, and is used to open or close an air outlet 121.

[0093] With such a configuration, by making the first air outlet 12 include at least two sub-air outlets 121, the blowing area can be expanded in the fan mode to enhance the effect of blowing air and cooling off; at the same time, by respectively controlling the opening and closing of at least two sub-air outlets 121 through at least two wind shielding structures 40a, only one of the sub-air outlets 121 can be opened, or all of the sub-air outlets 121 can be opened, thereby enhancing the flexibility of use and improving the user's satisfaction.

[0094] Optionally, see Figure 3 In one embodiment of the bladeless fan 100 of the utility model, the wind shielding structure 40a includes a first driving part 41 and a first movable door 42; the first driving part 41 is arranged on the shell 10; the first movable door 42 is transmission-connected to the first driving part 41, and the first driving part 41 drives the first movable door 42 to rotate so that the first movable door 42 opens or closes the corresponding air outlet 121.

[0095] With such a configuration, when it is necessary to close the air outlet 121, the first driving unit 41 can be used to drive the corresponding first movable door 42 to rotate to the first position. At this time, the first movable door 42 will be located on the inner side of the corresponding air outlet 121 to block the air outlet 121, thereby playing the function of closing the air outlet 121; and when it is necessary to open the air outlet 121, the first driving unit 41 can be used to drive the corresponding first movable door 42 to rotate to the second position. At this time, the first movable door 42 will be located on one side of the corresponding air outlet 121, thereby playing the function of opening the air outlet 121.

[0096] In actual application, the first driving part 41 can be directly a rotating motor to directly drive the first movable door 42 to rotate through the rotating motor; or, the first driving part 41 can also be a structure in which a rotating motor cooperates with a gear, or a structure in which a rotating motor cooperates with a screw nut, both of which can drive the first movable door 42 to switch between the first position and the second position to open or close the air outlet 121.

[0097] Optionally, see Figure 4 In one embodiment of the bladeless fan 100 of the present invention, the housing 10 is provided with at least two first limiting grooves 14 , and each first movable door 42 rotates in a first limiting groove 14 .

[0098] With such arrangement, by making the first movable door 42 rotate in the first limiting groove 14 , the stability of the first movable door 42 during the rotation process can be improved, and the position displacement of the first movable door 42 during the rotation process can be prevented.

[0099] Optionally, see Figure 3In one embodiment of the bladeless fan 100 of the utility model, the first driving unit 41 includes a first motor 411, a first gear 4121, a transmission gear 4122 and a first rotating shaft 4123; the first gear 4121 is transmission-connected to the first motor 411; the transmission gear 4122 is meshed with the first gear 4121; one end of the first rotating shaft 4123 is connected to the transmission gear 4122, and the first rotating shaft 4123 is extended along the height direction of the shell 10; the first movable door 42 is connected to the first rotating shaft 4123 to rotate with the first gear unit 412.

[0100] With such arrangement, when the first motor 411 rotates, it can drive the first gear 4121 to rotate. The rotation of the first gear 4121 can drive the transmission gear 4122, the first rotating shaft 4123 and the first movable door 42 to rotate synchronously. In this way, the first movable door 42 can be connected to the outer axial surface of the first rotating shaft 4123 to increase the connection area between the first movable door 42 and the first rotating shaft 4123, thereby improving the installation reliability of the first movable door 42.

[0101] In this embodiment, the first gear 4121, the transmission gear 4122 and the first rotating shaft 4123 can form a first gear part 412. When the first motor 411 rotates, it can drive the first gear part 412 to rotate. Under the rotation of the first gear part 412, the first movable door 42 can be driven to rotate smoothly.

[0102] In some embodiments, the first gear 4121 may be directly sleeved on the output shaft of the first motor 411 , so that the first motor 411 can smoothly drive the first gear 4121 to rotate.

[0103] In some embodiments, the first rotating shaft 4123, the transmission gear 4122 and the first movable door 42 may be an integrally formed structure, which not only ensures the connection strength between the first rotating shaft 4123, the transmission gear 4122 and the first movable door 42, but also simplifies the preparation process.

[0104] Optionally, see Figure 3 In one embodiment of the bladeless fan 100 of the present invention, a first limiting hole 4122a is provided at the end of the transmission gear 4122 away from the first rotating shaft 4123, and the housing 10 is provided with a first limiting column 15, which is inserted into the first limiting hole 4122a.

[0105] With such arrangement, during the synchronous rotation of the transmission gear 4122, the first rotating shaft 4123 and the first movable door 42, the transmission gear 4122 can be limited with the cooperation of the first limiting column 15 and the first limiting hole 4122a to improve the stability of the transmission gear 4122, the first rotating shaft 4123 and the first movable door 42 during the rotation process.

[0106] Optionally, see Figure 3 In one embodiment of the bladeless fan 100 of the present invention, a second limiting hole 4123a is provided at the end of the first rotating shaft 4123 away from the transmission gear 4122, and the housing 10 is provided with a second limiting column 16, which is inserted into the second limiting hole 4123a.

[0107] With such arrangement, during the synchronous rotation of the transmission gear 4122, the first rotating shaft 4123 and the first movable door 42, the first rotating shaft 4123 can also be limited with the cooperation of the second limiting column 16 and the second limiting hole 4123a, which can also improve the stability of the transmission gear 4122, the first rotating shaft 4123 and the first movable door 42 during the rotation process.

[0108] Optionally, see Figures 7 to 9 In one embodiment of the bladeless fan 100 of the present invention, a collector 60 is provided in the housing 10 , and the collector 60 is provided on the air inlet side of the fan assembly 20 .

[0109] In this way, the collector 60 can be set so that the air entering from the air inlet 11 can be quickly collected to the fan assembly 20, so that the air can be quickly discharged to the first air outlet 12 and the second air outlet 13 under the power of the fan assembly 20, which can reduce the loss of airflow.

[0110] In some embodiments, the collector 60 is arranged between the purification module 30 and the fan assembly 20, so that the air entering from the air inlet 11 can first be purified by the purification module 30, and the purified air then flows to the fan assembly 20 through the collector 60. This can prevent air with impurities from contaminating the collector 60 and the fan assembly 20, and can reduce the subsequent cleaning and maintenance costs.

[0111] In some embodiments, to facilitate maintenance of the collector 60, the collector 60 can be detachably mounted in the housing 10 by means of screws, buckles, etc. Similarly, to facilitate maintenance of the fan assembly 20, the fan assembly 20 can also be detachably mounted in the housing 10 by means of screws, buckles, etc.

[0112] Optionally, see Figures 7 to 9 In one embodiment of the bladeless fan 100 of the present invention, the second wind shielding device 50 can be movably disposed on the collector 60 to open or close the second air outlet 13.

[0113] In this configuration, by making the second windshield device 50 movably mounted on the collector 60, during the assembly process, the second windshield device 50 can be first mounted on the collector 60, and then the collector 60 and the second windshield device 50 can be mounted together in the housing 10, which makes it easier to install the second windshield device 50. At the same time, the collector 60 can effectively support the second windshield device 50, which can improve the installation reliability of the second windshield device 50.

[0114] Optionally, see Figures 13 to 16 In one embodiment of the bladeless fan 100 of the utility model, the second wind shielding device 50 includes a second driving unit 51 and a second movable door 52; the second driving unit 51 is arranged on the collector 60; the second movable door 52 is transmission-connected to the second driving unit 51, and the second driving unit 51 drives the second movable door 52 to rise and fall, so that the second movable door 52 opens or closes the second air outlet 13.

[0115] With such arrangement, when the second air outlet 13 needs to be closed, the second movable door 52 can be driven to rise to the third position by the second driving unit 51, at which time the second movable door 52 will be located inside the second air outlet 13 to block the second air outlet 13, thereby playing the role of closing the second air outlet 13; and when the second air outlet 13 needs to be opened, the second movable door 52 can be driven to fall to the fourth position by the second driving unit 51, at which time the second movable door 52 will be staggered with the second air outlet 13 in the height direction of the housing 10, thereby playing the role of opening the second air outlet 13. In addition, in order to meet the demand for a large purification volume, a plurality of second air outlets 13 are usually distributed at intervals in the circumferential direction of the housing 10. Therefore, the second movable door 52 can be driven to rise and fall by the second driving unit 51, so that the second movable door 52 can open a plurality of second air outlets 13 at one time or close a plurality of second air outlets 13 at one time.

[0116] In actual application, the second driving unit 51 can be directly a linear motor to directly drive the second movable door 52 to rise and fall through the linear motor; or, the second driving unit 51 can also be a structure in which a rotating motor cooperates with a gear rack 513, or a structure in which a rotating motor cooperates with a screw nut, both of which can drive the second movable door 52 to switch between the third position and the fourth position to open or close the second air outlet 13.

[0117] In actual application, the second movable door 52 can be a flat plate structure or an arc plate structure, and can be designed according to the shape of the shell 10 .

[0118] Optionally, see Figure 8 , Fig.10 , Fig.15In one embodiment of the bladeless fan 100 of the present invention, the collector 60 is provided with a second limiting groove 61, and the second movable door 52 is lifted and lowered in the second limiting groove 61.

[0119] With such arrangement, by making the second movable door 52 rise and fall in the second limiting groove 61 of the collector 60 , the stability of the second movable door 52 during the rising and falling process can be improved, and the position displacement of the second movable door 52 during the rising and falling process can be prevented.

[0120] It should be noted that the notch of the second limiting groove 61 is set toward the top of the collector 60. When the second movable door 52 is in the condition of opening the second air outlet 13, the second movable door 52 can be completely accommodated in the second limiting groove 61. When the second air outlet 13 needs to be closed, the second driving unit 51 can drive the second movable door 52 to rise, so that at least part of the second movable door 52 extends from the notch of the second limiting groove 61 to outside the second limiting groove 61, so as to achieve the effect of closing the second air outlet 13.

[0121] Optionally, see Figures 13 to 16 In one embodiment of the bladeless fan 100 of the utility model, the second driving unit 51 includes a second motor 511, a second gear unit 512 and a rack 513; the second motor 511 is arranged on the collector 60; the second gear unit 512 is transmission-connected to the second motor 511, and the second motor 511 drives the second gear unit 512 to rotate; the rack 513 is arranged on the second movable door 52, and is spirally extended from bottom to top along the circumference of the second movable door 52, and the rack 513 is meshed with the second gear unit 512.

[0122] With such arrangement, when the second motor 511 rotates, it can drive the second gear portion 512 to rotate. With the cooperation of the second gear portion 512 and the rack 513, it can drive the second movable door 52 to be raised and lowered while rotating, that is, it can drive the second movable door 52 to be lifted and lowered in a spiral manner. Compared with the linear lifting method, this can make the second movable door 52 be lifted and lowered more smoothly.

[0123] It should be noted that the second gear portion 512 includes but is not limited to a gear structure, as long as it can be connected to the second motor 511 in transmission and mesh with the rack 513 .

[0124] Optionally, see Fig.15 In one embodiment of the bladeless fan 100 of the utility model, the collector 60 is provided with a limiting protrusion 62, and the second movable door 52 is provided with a track 521. The extension direction of the track 521 is consistent with the extension direction of the rack 513, and the track 521 is spaced apart from the rack 513. The limiting protrusion 62 slides with the track 521.

[0125] With such arrangement, when the second movable door 52 is driven to perform spiral lifting and lowering with the cooperation of the second motor 511, the second gear portion 512 and the rack 513, the limiting protrusion 62 on the collector 60 can slidably cooperate with the track 521 on the second movable door 52, that is, the second movable door 52 can be limited with the cooperation of the limiting protrusion 62 and the track 521, which can improve the stability of the second movable door 52 during the spiral lifting and lowering process.

[0126] In actual application, the limiting protrusion 62 can be a protrusion structure such as a convex point or a convex block.

[0127] In some embodiments, in order to enable the second movable door 52 to stay in the state of opening the second air outlet 13 more stably during the lifting process, a first positioning groove can be provided at the top of the track 521, and the first positioning groove is connected to the track 521. In this way, when the second movable door 52 is in the condition of opening the second air outlet 13, the limiting protrusion 62 can be inserted into the first positioning groove, so that the second movable door 52 can stay in the state of opening the second air outlet 13 more stably.

[0128] Similarly, in order to enable the second movable door 52 to stay in the state of closing the second air outlet 13 more stably during the lifting process, a second positioning groove can be provided at the bottom of the track 521, and the second positioning groove is connected to the track 521. In this way, when the second movable door 52 is in the condition of closing the second air outlet 13, the limiting protrusion 62 can be inserted into the second positioning groove, so that the second movable door 52 can stay in the state of closing the second air outlet 13 more stably.

[0129] Optionally, see Fig.13 , Fig.14 , Fig.16 In one embodiment of the bladeless fan 100 of the present invention, the second gear portion 512 includes a second gear 5121, a lower gear 5122, a second rotating shaft 5123 and an upper gear 5124; the second gear 5121 is transmission-connected to the second motor 511; the lower gear 5122 is meshed with the second gear 5121; one end of the second rotating shaft 5123 is connected to the lower gear 5122; the upper gear 5124 is connected to one end of the second rotating shaft 5123 away from the lower gear 5122, and the rack 513 is meshed with the upper gear 5124.

[0130] With such arrangement, when the second motor 511 rotates, it can drive the second gear 5121 to rotate. The rotation of the second gear 5121 can drive the lower gear 5122, the second rotating shaft 5123 and the upper gear 5124 to rotate synchronously. Finally, the second movable door 52 is driven to spirally rise and fall through the engagement of the upper gear 5124 with the rack 513. In this way, the second motor 511 can be installed below the second movable door 52, making the distribution of the overall structure more compact, and being able to make full use of the space inside the shell 10, thereby reducing the volume of the bladeless fan 100.

[0131] In some embodiments, the second gear 5121 may be directly sleeved on the output shaft of the second motor 511 , so that the second motor 511 can smoothly drive the second gear 5121 to rotate.

[0132] In some embodiments, in order to ensure the strength of the second rotating shaft 5123, reinforcing ribs may be provided on the outer axial surface of the second rotating shaft 5123 to enhance the strength of the second rotating shaft 5123 and reduce the risk of deformation or even breakage of the second rotating shaft 5123.

[0133] In some embodiments, the second rotating shaft 5123 and the lower gear 5122 and the upper gear 5124 can be an integrally formed structure, which can not only ensure the connection strength between the second rotating shaft 5123 and the lower gear 5122 and the upper gear 5124, but also simplify the preparation process.

[0134] Optionally, see Fig.16 In one embodiment of the bladeless fan 100 of the present invention, a third limiting hole 5122a is provided at the end of the lower gear 5122 away from the second rotating shaft 5123, and the collector 60 is provided with a third limiting column 63, and the third limiting column 63 is inserted into the third limiting hole 5122a.

[0135] With such arrangement, during the synchronous rotation of the lower gear 5122, the second rotating shaft 5123 and the upper gear 5124, the lower gear 5122 can be limited with the cooperation of the third limiting column 63 and the third limiting hole 5122a to improve the stability of the lower gear 5122, the second rotating shaft 5123 and the upper gear 5124 during the rotation process.

[0136] Optionally, see Fig.16 In one embodiment of the bladeless fan 100 of the present invention, a fourth limiting hole 5124a is provided at the end of the upper gear 5124 away from the second rotating shaft 5123, and the collector 60 is provided with a fourth limiting column 64, which is inserted into the fourth limiting hole 5124a.

[0137] With such arrangement, during the synchronous rotation of the lower gear 5122, the second rotating shaft 5123 and the upper gear 5124, the upper gear 5124 can also be limited with the cooperation of the fourth limiting column 64 and the fourth limiting hole 5124a, which can also improve the stability of the lower gear 5122, the second rotating shaft 5123 and the upper gear 5124 during the rotation process.

[0138] Optionally, see Figure 7 , Fig. 9 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 .

[0139] 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.

[0140] 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.

[0141] 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 .

[0142] Optionally, see Figure 7 , Fig. 9 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 .

[0143] 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.

[0144] 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 .

[0145] Optionally, see Figure 7 , Fig. 9 In some embodiments, the fan assembly 20 may also include a third motor 21 and a guide vane 23, the motor is arranged inside the housing 10; the wind wheel 22 is transmission-connected to the motor, and the motor drives the wind wheel 22 to rotate; the guide vane 23 is arranged on the air outlet side of the wind wheel 22, and the guide vane 23 is used to guide the air entering from the air inlet 11 to the air outlet duct 14 and the second air outlet 13.

[0146] With such arrangement, when the third 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 air outlet duct 14 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.

[0147] Optionally, see Figure 2 and Figure 5 In some embodiments, the fan assembly 20 further includes a protective net 24 , which is disposed on the wind inlet side of the wind wheel 22 .

[0148] 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 third motor 21 to cause damage to the wind wheel 22 and the third motor 21 .

[0149] 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 housing, 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 first wind shielding device, movably disposed on the housing to open or close the first air outlet; A second wind shielding device is movably disposed on the housing to open or close the second air outlet; A current collector is provided in the housing, and the current collector is provided on the air inlet side of the fan assembly; The second wind shielding device can be movably arranged on the collector to open or close the second air outlet; The second wind shielding device comprises: A second driving unit, provided on the current collector; The second movable door is transmission-connected to the second driving unit, and the second driving unit drives the second movable door to rise and fall, so that the second movable door opens or closes the second air outlet.

2. The bladeless fan according to claim 1, characterized in that: The shell is also provided with an air outlet duct, which connects the air inlet and the first air outlet, and the first wind shielding device is arranged on the inner side of the first air outlet.

3. The bladeless fan according to claim 2, characterized in that: The housing comprises: A housing, provided with the air inlet, the first air outlet and the second air outlet; An inner shell is arranged inside the outer shell and encloses the outer shell to form the air outlet duct. The first wind shielding device moves relative to the outer shell and has a first position and a second position. Wherein, when the first wind shielding device is in the first position, the first air outlet is opened, and the first wind shielding device forms a part of the air outlet duct; when the first wind shielding device is in the second position, the first air outlet is closed.

4. The bladeless fan according to claim 3, characterized in that: The first air outlet includes at least two air outlets, the air outlet duct connects the air inlet and at least two of the air outlets, and the first wind shielding device includes at least two wind shielding structures, each of which is arranged on the inner side of one of the air outlets and is used to open or close one of the air outlets.

5. The bladeless fan according to claim 4, characterized in that: The windshield structure comprises: A first driving part, disposed on the housing; The first movable door is transmission-connected to the first driving unit, and the first driving unit drives the first movable door to rotate so that the first movable door opens or closes the corresponding air distribution outlet.

6. The bladeless fan according to claim 5, characterized in that: The housing is provided with at least two first limiting grooves, and each of the first movable doors rotates in one of the first limiting grooves.

7. The bladeless fan according to claim 5, characterized in that: The first driving unit comprises: A first motor is disposed in the housing; A first gear, transmission-connected to the first motor; a transmission gear meshing with the first gear; A first rotating shaft, one end of which is connected to the transmission gear, and the first rotating shaft is extended along the height direction of the shell; the first movable door is connected to the first rotating shaft to rotate with the first rotating shaft.

8. The bladeless fan according to claim 7, characterized in that: The end of the transmission gear away from the first rotating shaft is provided with a first limiting hole, the housing is provided with a first limiting column, and the first limiting column is inserted into the first limiting hole; And / or, a second limiting hole is provided at the end of the first rotating shaft away from the transmission gear, and a second limiting column is provided on the housing, and the second limiting column is inserted into the second limiting hole.

9. The bladeless fan according to claim 1, wherein: The current collector is provided with a second limiting groove, and the second movable door is lifted and lowered in the second limiting groove.

10. The bladeless fan according to claim 1, wherein: The second driving unit comprises: A second motor, disposed on the current collector; A second gear part, drivingly connected to the second motor, and the second motor drives the second gear part to rotate; The rack is provided on the second movable door and is spirally extended from bottom to top along the circumference of the second movable door. The rack is meshed with the second gear part.

11. The bladeless fan according to claim 10, characterized in that: The collector is provided with a limiting protrusion, and the second movable door is provided with a track. The extension direction of the track is consistent with the extension direction of the rack and is spaced from the rack. The limiting protrusion is slidably matched with the track.

12. The bladeless fan according to claim 10, characterized in that: The second gear portion includes: A second gear, transmission-connected to the second motor; a lower gear meshing with the second gear; a second rotating shaft, one end of which is connected to the lower gear; An upper gear is connected to an end of the second rotating shaft away from the lower gear, and the rack is meshed with the upper gear.

13. The bladeless fan according to claim 12, wherein: The end of the lower gear away from the second rotating shaft is provided with a third limiting hole, the current collector is provided with a third limiting column, and the third limiting column is inserted into the third limiting hole; And / or, a fourth limiting hole is provided at the end of the upper gear away from the second rotating shaft, and the current collector is provided with a fourth limiting column, and the fourth limiting column is inserted into the fourth limiting hole.

14. The bladeless fan according to any one of claims 1 to 8, characterized in that: The fan assembly is provided with a wind wheel, and the second air outlet is arranged close to the wind wheel and located in the radial direction of the wind wheel.

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