fan

Abstract

This invention relates to a fan, comprising: a housing assembly consisting of an upper housing, a lower housing, and a rotating base; the upper housing is disposed on the lower housing, and the lower housing is disposed on the rotating base, the lower housing and the rotating base being rotatably connected; the upper housing having an air guide channel and an air outlet communicating therewith; the lower housing having an air inlet; and a first mounting cavity formed inside the lower housing; an identification device disposed on the upper housing and rotatable relative to the upper housing; a turbine disposed on the upper housing, the turbine having an air delivery channel forming inside and communicating with the air guide channel; and a control device. Through the operation of the turbine, air enters the first mounting cavity through the air inlet, is then accelerated by the turbine and enters the air guide channel, being blown outwards at high speed; the identification device identifies biometric features or facial information within the extreme air delivery range and feeds back control signals to the control device, thereby controlling the rotation angle of the rotating base to achieve intelligent adjustment of the air delivery range and avoid ineffective air delivery.

Description

Technical Field

[0001] This invention relates to the field of fan technology, and in particular to a fan. Background Technology

[0002] Currently, existing electric fans operate in a predetermined manner, with preset settings such as angular velocity and maximum rotation angle. Regardless of whether or not anyone is in front of the fan, or how many people are present, the operation remains fixed: the fan's motor operates within a preset angular velocity and angle range to deliver airflow. Furthermore, after someone leaves, and when no one was previously in front of the fan, it continues to deliver airflow in the same way without manual control or other settings, leading to energy waste and a poor user experience. Summary of the Invention

[0003] Therefore, it is necessary to provide a new type of fan that addresses the problem of energy waste caused by existing fans.

[0004] A fan includes: a housing assembly comprising an upper housing, a lower housing, and a rotating base; the upper housing being disposed on the lower housing, and the lower housing being disposed on the rotating base, the lower housing and the rotating base being rotatably connected; the upper housing having an air guide channel and an air outlet communicating with the air guide channel, the air guide channel delivering airflow to the outside through the air outlet; the lower housing having an air inlet; and a first mounting cavity formed inside the lower housing, the first mounting cavity communicating with the outside through the air inlet; an identification device disposed on the upper housing, the identification device being rotatable relative to the upper housing, the identification device being used for biometric identification to limit the fan's oscillation angle; a turbine, the turbine being at least partially located within the first mounting cavity, the turbine being disposed on the lower housing, the turbine having an air supply channel formed inside, the air supply channel communicating with the air guide channel; and a control device including a control circuit module, the control device being electrically connected to the turbine and the identification device respectively, the control device being used to receive feedback information from the identification device or user control signals to adjust the fan's operating state.

[0005] This application discloses a fan in which a turbine first operates, and external air enters the first mounting cavity through the air inlet, then enters the turbine for cyclone acceleration. The accelerated air then enters the air guide channel through the air delivery channel, and is blown out at high speed through the air outlet. The lower housing and the rotating base are rotatably connected, and the rotation of the housing assembly can increase the fan's air delivery range. By placing a recognition device on the upper housing, which can rotate relative to the upper housing, the fan can recognize biometric features or facial information within the extreme air delivery range and feed back control signals to the control device to limit the rotation angle of the rotating base. This allows the fan to limit the rotation angle of the rotating base according to the location and number of users, thereby intelligently adjusting the air delivery range and avoiding ineffective air delivery.

[0006] In one embodiment, there are two upper housings arranged opposite each other. The identification device is located between the two upper housings, with one end connected to one of the upper housings and the other end connected to the other upper housing. Because the two upper housings are arranged opposite each other, each upper housing has an air guide channel and an air outlet communicating with the air guide channel. The two air guide channels are connected only at the end near the turbine within the air supply channel. The two upper housings are independent at the end away from the turbine, and the gap between them provides space for the identification device to be installed.

[0007] In one embodiment, the identification device includes an identification module, a first housing, and a second rotating assembly. The identification module is disposed on the first housing, and the second rotating assembly is connected to both the first housing and the upper housing. The second rotating assembly includes a first motor, a first gear, and a second gear. The first motor is disposed on the first housing, the first gear is sleeved on the rotating shaft of the first motor, and the second gear is connected to one of the upper housings, meshing with the first gear. By fixing the first motor in a second mounting cavity formed inside the first housing, and then sleeved the first gear on the rotating shaft of the first motor, the first gear rotates synchronously with the rotating shaft. The second gear is fixed on one of the upper housings and remains stationary. The first gear and the second gear are then connected by meshing. When the first motor rotates, since the second gear remains stationary, the first gear rotates along the second gear, thereby driving the first housing to rotate longitudinally. The first housing can rotate longitudinally and can rotate relative to the identification module, thus increasing the identification range of the identification module. For example, when the user is lying down and close to a fan, the first housing rotates towards the ground, ensuring that the identification module has a sufficient angular range for identification, thereby improving the identification rate and reliability of the identification device.

[0008] In one embodiment, the identification module includes a face recognition camera, a pyroelectric infrared sensor, or an infrared sensor.

[0009] In one embodiment, the second gear forms a first groove, and the upper housing forms a first limiting post, which is adapted to the first groove; the second gear forms a second limiting post, and the upper housing forms a second groove, which is adapted to the second groove. By adapting the first groove to the first limiting post, during the assembly process of the second gear and the upper housing, the first limiting post in the upper housing is inserted into the first groove of the second gear, completing the initial positioning of the second gear and the upper housing. Then, by using a fastener adapted to the second groove, based on the initial positioning of the second gear and the upper housing, the second limiting post of the second gear is inserted into the second groove. Through the simple cooperation of the above components, not only is the installation simple but the structure is also simple, enabling the second gear to remain relatively stationary relative to the upper housing.

[0010] In one embodiment, there are two second limiting posts, which are elastic and spaced apart. Each second groove corresponds to one of the second limiting posts, and the distance between the two second limiting posts is less than the minimum distance between the two second grooves. Because the distance between the two second limiting posts is less than the minimum distance between the two second grooves, when inserting the second limiting post into the second groove, the distance between the two second limiting posts needs to be slightly increased to ensure smooth insertion and tight contact between the second limiting post and the upper housing, thus improving the stability of the connection between the second gear and the upper housing.

[0011] In one embodiment, a second mounting cavity is formed inside the first housing, and the second rotating assembly is at least partially located within the second mounting cavity.

[0012] In one embodiment, the upper housing includes a second housing, a third housing, and a swivel blade. The second housing and the third housing enclose the air guide channel. The air outlet includes a first air outlet and a second air outlet. The third housing forms the first air outlet and the second air outlet. The swivel blade is disposed on the third housing and is rotatable relative to the third housing, having at least a first position and a second position. The swivel blade is used to open or close the second air outlet. Because the swivel blade is rotatable relative to the third housing, when the swivel blade rotates to the first position, the second air outlet is closed; when the swivel blade rotates to the second position, the second air outlet is opened. Air in the air guide channel can be discharged through the first and second air outlets. By providing the first and second air outlets, the opening and closing of the second air outlet can be adjusted according to the fan's operating state. For example, when the fan is in warm air mode, the second air outlet is closed, and warm air is blown out through the first air outlet; when the fan is in cold air mode, the second air outlet is open, and cold air is discharged simultaneously through the first and second air outlets.

[0013] In one embodiment, a control valve is also included, which is disposed on the upper housing and connected to the oscillating vane. The control valve is used to change the position of the oscillating vane. By providing the control valve, the position of the oscillating vane relative to the third housing can be electrically adjusted, thereby changing the opening and closing of the second air outlet without manual operation.

[0014] In one embodiment, the operating state of the second air outlet can be changed by the positional relationship of the manually operated blades relative to the third housing.

[0015] In one embodiment, a heating element is further included, which is disposed on the housing assembly and located within the air guide channel. The heating element is positioned opposite to the first air outlet, and the second air outlet is located on the side away from the heating element. The heating element is electrically connected to the control device. By positioning the heating element opposite to the first air outlet, when the fan is in warm air mode, the second air outlet is closed, the heating element heats up, and the air in the air guide channel first exchanges heat with the heating element before being blown out through the first air outlet. When the fan is in cold air mode, the second air outlet is open, and the air in the air guide channel is mainly discharged through the second air outlet, avoiding obstruction by the heating element and other components, thus preventing a reduction in airflow.

[0016] In one embodiment, the control valve includes a fixed bracket, a second motor, a rotating shaft, and a linkage; the fixed bracket is disposed on the upper housing, the second motor is disposed on the fixed bracket and electrically connected to the control device, one end of the rotating shaft is sleeved on the rotating shaft of the second motor, the linkage forms a sliding groove and a third limiting post, the other end of the rotating shaft is at least partially located in the sliding groove, the vane forms a mounting hole, and the third limiting post is adapted to the mounting hole. The control valve operates as follows: When the second air outlet is closed, the swing blade is in the first position. If the fan enters cold air mode, the second motor receives a control signal from the control device and begins to rotate, thereby causing the rotating shaft to move. Since one end of the rotating shaft is located in the sliding groove of the linkage, when the rotating shaft rotates, it abuts against one end of the sliding groove and causes it to move. Because the third limiting post on the linkage is inserted into the mounting hole on the swing blade, when the linkage moves, it causes the swing blade to move, causing the swing blade to move from the first position to the second position. The second air outlet opens, and cold air is blown out from both the first and second air outlets.

[0017] In one embodiment, the purification component is disposed on the lower housing and located within the first mounting cavity. The purification component filters impurities in the air and is positioned opposite to the turbine's air intake direction. The purification component is detachably connected to the lower housing and electrically connected to the control device. The lower housing includes a lower housing body and a ventilation mesh. The ventilation mesh forms multiple air inlets and is positioned opposite to the purification component. The ventilation mesh is detachably connected to the lower housing body. By positioning the purification component relative to the turbine's air intake direction, when the fan is operating, external air enters the first mounting cavity through the multiple air inlets in the ventilation mesh. The purification component then filters impurities in the air, thereby improving air quality. The detachable connection between the ventilation mesh and the lower housing body allows for easy removal of the purification component by inserting a finger into the recessed area on the curved surface formed by the ventilation mesh and the lower housing body. This allows the user to pry the ventilation mesh off the lower housing body with slight force, thus ensuring the purification effect.

[0018] In one embodiment, a display module is also included, which is disposed on the identification device or housing assembly. The display module is used to display the current operating status information of the fan. By providing the display module, the user can understand the current operating status of the fan in real time.

[0019] In one embodiment, the control device includes a remote controller and a control circuit board. The control device further includes a remote controller for remotely changing the fan's operating state. By setting up the remote controller, a user can remotely control the fan's operating state. Attached Figure Description

[0020] Figure 1 A 3D diagram of the fan;

[0021] Figure 2 This is a cross-sectional view of the fan;

[0022] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0023] Figure 4 for Figure 2 Enlarged view of section B in the middle;

[0024] Figure 5 This is a schematic diagram showing the installation of the identification device and the upper housing;

[0025] Figure 6 This is a partially exploded view of the fan;

[0026] Figure 7 This is an exploded view of the fan.

[0027] The correspondence between the reference numerals and the component names is as follows:

[0028] 1. Housing assembly, 11. Upper housing, 111. Second housing, 112. Third housing, 113. Oscillator, 1121. First limiting post, 101. Air outlet, 1011. First air outlet, 1012. Second air outlet, 102. Mounting hole, 1001. Air guide channel, 1002. Second groove, 12. Lower housing, 121. Ventilation mesh, 122. Lower housing body, 103. First mounting cavity, 104. Air inlet (104), 13. Rotating base, 14. Control valve, 141. Fixed bracket, 142. Second motor, 143. Rotating shaft, 144. Linkage, 1441. Third limiting post, 1003. Sliding groove;

[0029] 2 Identification device, 21 Identification module, 22 First housing, 201 Second mounting cavity, 23 Rotating assembly, 231 First motor, 232 First gear, 233 Second gear, 2331 Second limiting post, 2001 First groove.

[0030] 3 turbines, 3001 air supply duct;

[0031] 4. Purification components. Detailed Implementation

[0032] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0034] Some embodiments of the fan of the present invention are described below with reference to the accompanying drawings.

[0035] like Figures 1 to 7As shown, this embodiment discloses a fan, including: a housing assembly 1, which includes an upper housing 11, a lower housing 12, and a rotating base 13. The upper housing 11 is disposed on the lower housing 12, and the lower housing 12 is disposed on the rotating base 13. The lower housing 12 and the rotating base 13 are rotatably connected. The upper housing 11 is provided with an air guide channel 1001 and an air outlet 101 communicating with the air guide channel 1001. The air guide channel 1001 delivers airflow to the outside through the air outlet 101. The lower housing 12 is provided with an air inlet 104, and a first mounting cavity 103 is formed inside the lower housing 12. The first mounting cavity 103 is connected to the fan via the air inlet 104. External connectivity; Identification device 2, mounted on the upper housing 11, rotatable relative to the upper housing 11, used for biometric identification to limit the fan's oscillation angle; Turbine 3, at least partially located within the first mounting cavity 103, mounted on the lower housing 12, forming an air supply channel 3001 internally, connected to the air guide channel 1001; Control device, including a control circuit module, electrically connected to the turbine 3 and identification device 2, used to receive feedback information from identification device 2 or user control signals to adjust the fan's operating state.

[0036] The fan disclosed in this application first operates a turbine 3, and external air enters the first mounting cavity 103 through the air inlet 104, then enters the turbine 3 for cyclone acceleration, and the accelerated air enters the air guide channel 1001 through the air delivery channel 3001, and is then blown out at high speed through the air outlet 101; the lower housing 12 and the rotating base 13 are rotatably connected, and the rotation of the housing assembly 1 can increase the air delivery range of the fan; by setting the identification device 2 on the upper housing 11 and the identification device 2 being rotatable relative to the upper housing 11, it can identify biometric features or facial information within the extreme air delivery range, and feed back control signals to the control device to limit the rotation angle of the rotating base 13, so that the fan can limit the rotation angle of the rotating base 13 according to the position and number of users, thereby achieving intelligent adjustment of the air delivery range and avoiding ineffective air delivery.

[0037] Optionally, the fan 31 is mounted on the duct assembly 33 and / or the housing assembly 1.

[0038] like Figures 4 to 6As shown, in addition to the features of the above embodiments, this embodiment further specifies that: there are two upper housings 11, which are arranged opposite to each other, and the identification device 2 is located between the two upper housings 11. One end of the identification device 2 is connected to one of the upper housings 11, and the other end of the identification device 2 is connected to the other upper housing 11. With the two upper housings 11 arranged opposite to each other, each upper housing 11 has an air guide channel 1001 and an air outlet 101 communicating with the air guide channel 1001. The two air guide channels 1001 are connected only at the end near the turbine 3 within the air supply channel 3001. The two upper housings 11 are independent at the end away from the turbine 3, and the gap between them provides space for the installation of the identification device 2.

[0039] like Figures 4 to 6 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the identification device 2 includes an identification module 21, a first housing 22 and a second rotating component 23, the identification module 21 is disposed on the first housing 22, and the second rotating component 23 is connected to the first housing 22 and the upper housing 11 respectively;

[0040] The second rotating assembly 23 includes a first motor 231, a first gear 232, and a second gear 233. The first motor 231 is mounted on the first housing 22. The first gear 232 is mounted on the rotating shaft of the first motor 231. The second gear 233 is connected to one of the upper housings 11, and the first gear 232 meshes with the second gear 233. By fixing the first motor 231 inside the second mounting cavity 201 formed inside the first housing 22, and then fitting the first gear 232 onto the rotating shaft of the first motor 231, the first gear 232 rotates synchronously with the rotating shaft. The second gear 233 is fixed on one of the upper housings 11 and remains stationary. The first gear 232 and the second gear 233 are then connected by meshing. When the first motor 231 rotates, since the second gear 233 remains stationary, the first gear 232 rotates along the second gear 233, thereby driving the first housing 22 to rotate longitudinally. The first housing 22 can rotate longitudinally and can rotate relative to the recognition module 21, thus increasing the recognition range of the recognition module 21. For example, when the user is lying down and close to the fan, the first housing 22 rotates towards the ground, thereby ensuring that the recognition module 21 has a sufficient angular range for recognition and improving the recognition rate and reliability of the recognition device 2.

[0041] Optionally, the recognition module 21 includes a face recognition camera, a pyroelectric infrared sensor, or an infrared sensor.

[0042] like Figure 1 , Figure 6 and Figure 7As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the second gear 233 forms a first groove 2001, the upper housing 11 forms a first limiting post 1121, and the first limiting post 1121 is adapted to the first groove 2001; the second gear 233 forms a second limiting post 2331, the upper housing 11 forms a second groove 1002, and the second limiting post 2331 is adapted to the second groove 1002. By adapting the first groove 2001 to the first limiting post 1121, during the assembly process of the second gear 233 and the upper housing 11, the first limiting post 1121 in the upper housing 11 is inserted into the first groove 2001 of the second gear 233, thus completing the initial limiting of the second gear 233 and the upper housing 11. Then, by adapting the fastener to the second groove 1002, based on the initial limiting of the second gear 233 and the upper housing 11, the second limiting post 2331 of the second gear 233 is inserted into the second groove 1002. Through the simple cooperation of the above components, not only is the installation simple but the structure is also simple, enabling the second gear 233 to remain relatively stationary relative to the upper housing 11.

[0043] like Figure 1 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: there are two second limiting posts 2331; the second limiting posts 2331 are elastic; the two second limiting posts 2331 are spaced apart; the second grooves 1002 are correspondingly arranged one-to-one with the second limiting posts 2331; and the interval between the two second limiting posts 2331 is less than the minimum interval between the two second grooves 1002. Because the interval between the two second limiting posts 2331 is less than the minimum interval between the two second grooves 1002, when the second limiting post 2331 is inserted into the second groove 1002, the interval between the two second limiting posts 2331 needs to be slightly widened, so that the second limiting post 2331 can be smoothly inserted into the second groove 1002, and the second limiting post 2331 is in close contact with the second groove 1002, thereby improving the stability of the connection between the second gear 233 and the upper housing 11.

[0044] like Figure 6 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further defines that: a second mounting cavity 201 is formed inside the first housing 22, and the second rotating component 23 is at least partially located inside the second mounting cavity 201.

[0045] like Figure 3 , Figure 6 and Figure 7As shown, in addition to the features of the above embodiments, this embodiment further defines: the upper housing 11 includes a second housing 111, a third housing 112 and a swivel blade 113, the second housing 111 and the third housing 112 enclose to form an air guide channel 1001, the air outlet 101 includes a first air outlet 1011 and a second air outlet 1012, the third housing 112 forms the first air outlet 1011 and the second air outlet 1012, the swivel blade 113 is disposed on the third housing 112, the swivel blade 113 is rotatable relative to the third housing 112 and has at least a first position and a second position, the swivel blade 113 is used to open or close the second air outlet 1012. The oscillating blade 113 is rotatable relative to the third housing 112. When the oscillating blade 113 rotates to the first position, the second air outlet 1012 is closed. When the oscillating blade 113 rotates to the second position, the second air outlet 1012 is opened. Air in the air guide channel 1001 can be discharged through the first air outlet 1011 and the second air outlet 1012. By setting the first air outlet 1011 and the second air outlet 1012, the opening and closing of the second air outlet 1012 can be adjusted according to the fan's operating status. For example, when the fan is in warm air mode, the second air outlet 1012 is closed, and warm air is blown out through the first air outlet 1011. When the fan is in cold air mode, the second air outlet 1012 is open, and cold air is discharged through the first air outlet 1011 and the second air outlet 1012 simultaneously.

[0046] like Figure 1 , Figure 2 and Figure 7 As shown, in addition to the features of the above embodiments, this embodiment further includes a control valve 14, which is disposed on the upper housing 11 and connected to the oscillating vane 113. The control valve 14 is used to change the position of the oscillating vane 113. By providing the control valve 14, the position of the oscillating vane 113 relative to the third housing 112 can be electrically adjusted, thereby changing the opening and closing of the second air outlet 101 without manual operation.

[0047] Optionally, the operating state of the second air outlet 101 can be changed by the positional relationship of the manual louver 113 relative to the third housing 112.

[0048] like Figure 2 , Figure 6 and Figure 7As shown, in addition to the features of the above embodiments, this embodiment further includes a heating element disposed on the housing assembly 1 and located within the air guide channel 1001. The heating element is positioned opposite to the first air outlet 1011, and the second air outlet 1012 is disposed on the side away from the heating element. The heating element is electrically connected to the control device. Because the heating element is positioned opposite to the first air outlet 1011, when the fan is in warm air mode, the second air outlet 1012 is closed, the heating element heats up, and the air in the air guide channel 1001 first undergoes heat exchange through the heating element before being blown out through the first air outlet 1011. When the fan is in cold air mode, the second air outlet 1012 is opened, and the air in the air guide channel 1001 is mainly discharged through the second air outlet 1012, avoiding obstruction by the heating element and other components, thus reducing airflow.

[0049] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further defines: the control valve 14 includes a fixed bracket 141, a second motor 142, a rotating shaft 143, and a connecting member 144; the fixed bracket 141 is disposed on the upper housing 11, the second motor 142 is disposed on the fixed bracket 141, the second motor 142 is electrically connected to the control device, one end of the rotating shaft 143 is sleeved on the rotating shaft of the second motor 142, the connecting member 144 forms a sliding groove 1003 and a third limiting post 1441, the other end of the rotating shaft 143 is at least partially located in the sliding groove 1003, the oscillating vane 113 forms a mounting hole 102, and the third limiting post 1441 is adapted to the mounting hole 102. The control valve operates as follows: When the second air outlet 101 is closed, the oscillating blade 113 is in the first position. If the fan enters the cold air mode, the second motor 142 receives a control signal from the control device and starts to rotate, thereby driving the rotating shaft 143 to move. Since one end of the rotating shaft 143 is located in the sliding groove 1003 of the linkage 144, when the rotating shaft 143 rotates, the rotating shaft 143 abuts against one end of the sliding groove 1003 and drives it to move. Since the third limiting post 1441 on the linkage 144 is inserted into the mounting hole 102 on the oscillating blade 113, when the position of the linkage 144 moves, it drives the oscillating blade 113 to move, so that the oscillating blade 113 moves from the first position to the second position, the second air outlet 101 opens, and cold air is blown out from the first air outlet 101 and the second air outlet 101.

[0050] In addition to the features of the above embodiments, this embodiment further specifies that: it also includes a purification component 4, which is disposed on the lower housing 12 and located in the first mounting cavity 103. The purification component 4 is used to filter impurities in the air. The purification component 4 is arranged opposite to the air intake direction of the turbine 3. The purification component 4 is detachably connected to the lower housing 12 and is electrically connected to the control device. The lower housing 12 includes a lower housing body 122 and a ventilation net 121. The ventilation net 121 forms a plurality of air inlets 104. The ventilation net 121 is arranged opposite to the purification component 4 and is detachably connected to the lower housing body 122. By setting the purification component 4 at a relative position in the air intake direction of the turbine 3, when the fan is working, external air enters the first mounting cavity 103 through multiple air inlets 104 in the ventilation mesh 121. Then, the purification component 4 filters impurities in the air, thereby improving air quality. The ventilation mesh 121 is detachably connected to the lower shell body 122. The specific disassembly process is as follows: there is a recess on the curved surface formed by the ventilation mesh 121 and the lower shell body 122. The user can pry the ventilation mesh 121 off the lower shell body 122 by inserting their fingers into the recess 1004 and pressing against the ventilation mesh 121 with a little force, thereby replacing the purification component 4 and ensuring the purification effect.

[0051] In addition to the features of the above embodiments, this embodiment further includes a display module, which is disposed on the identification device 2 or the housing assembly 1. The display module is used to display the current fan operating status information. By providing the display module, the user can understand the current fan operating status in real time.

[0052] In addition to the features of the above embodiments, this embodiment further specifies that: the control device includes a remote controller and a control circuit board, and the control device also includes a remote controller, which is used to change the operating state of the fan remotely. By setting the remote controller, the user can remotely control the operating state of the fan.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A fan, characterized in that, include: The housing assembly (1) includes an upper housing (11), a lower housing (12), and a rotating base (13). The upper housing (11) is disposed on the lower housing (12), and the lower housing (12) is disposed on the rotating base (13). The lower housing (12) and the rotating base (13) are rotatably connected. The upper housing (11) is provided with an air guide channel (1001) and an air outlet (101) communicating with the air guide channel (1001). The air guide channel (1001) delivers air to the outside through the air outlet (101). The lower housing (12) is provided with an air inlet (104). A first mounting cavity (103) is formed inside the lower housing (12). The first mounting cavity (103) is connected to the outside through the air inlet (104). Identification device (2), the identification device (2) is disposed on the upper housing (11), the identification device (2) is rotatable relative to the upper housing (11), the identification device (2) is used for biometric identification to limit the fan swing angle; A turbine (3) is located at least partially within the first mounting cavity (103). The turbine (3) is disposed on the lower housing (12). An air supply channel (3001) is formed inside the turbine (3). The air supply channel (3001) is connected to the air guide channel (1001). The control device includes a control circuit module. The control device is electrically connected to the heating element, the turbine (3), the identification device (2), and the purification component (4). The control device is used to receive feedback information from the identification device (2) or user control signals to adjust the fan operation status. There are two upper housings (11), which are arranged opposite to each other. The identification device (2) is located between the two upper housings (11). One end of the identification device (2) is connected to one of the upper housings (11), and the other end of the identification device (2) is connected to the other upper housing (11). The identification device (2) includes an identification module (21), a first housing (22), and a second rotating assembly (23). The identification module (21) is disposed on the first housing (22), and the second rotating assembly (23) is connected to the first housing (22) and the upper housing (11) respectively. The second rotating assembly (23) includes a first motor (231), a first gear (232), and a second gear (233). The first motor (231) is disposed on the first housing (22), the first gear (232) is sleeved on the rotating shaft of the first motor (231), and the second gear (233) is connected to one of the upper housings (11). The first gear (232) meshes with the second gear (233). The upper housing (11) includes a second housing (111), a third housing (112), and a swivel blade (113). The second housing (111) and the third housing (112) enclose the air guide channel (1001). The air outlet (101) includes a first air outlet (1011) and a second air outlet (1012). The third housing (112) forms the first air outlet (1011) and the second air outlet (1012). The swivel blade (113) is disposed on the third housing (112). The swivel blade (113) is rotatable relative to the third housing (112) and has at least a first position and a second position. The swivel blade (113) is used to open or close the second air outlet (1012). A heating element is disposed on the housing assembly (1), the heating element is located in the air guide channel (1001), the heating element is disposed opposite to the first air outlet (1011), and the second air outlet (1012) is disposed on the side away from the heating element; A control valve (14) is mounted on the upper housing (11) and connected to the oscillating vane (113). The control valve (14) is used to change the position of the oscillating vane (113). The control valve (14) includes a fixed bracket (141), a second motor (142), a rotating shaft (143), and a connecting element (144). The fixed bracket (141) is mounted on the upper housing (11), and the second motor (142) is mounted on the fixed bracket (141). On 141), the second motor (142) is electrically connected to the control device. One end of the rotating shaft (143) is sleeved on the rotating shaft of the second motor (142). The linkage (144) forms a sliding groove (1003) and a third limiting post (1441). The other end of the rotating shaft (143) is at least partially located in the sliding groove (1003). The swing blade (113) forms a mounting hole (102). The third limiting post (1441) is adapted to the mounting hole (102).

2. The fan according to claim 1, characterized in that, The second gear (233) forms a first groove (2001), and the upper housing (11) forms a first limiting post (1121), which is adapted to the first groove (2001); The second gear (233) forms a second limiting post (2331), and the upper housing (11) forms a second groove (1002). The second limiting post (2331) is adapted to the second groove (1002).

3. The fan according to claim 2, characterized in that, There are two second limiting posts (2331), each of which is elastic. The two second limiting posts (2331) are spaced apart. The second grooves (1002) are arranged in a one-to-one correspondence with the second limiting posts (2331). The distance between the two second limiting posts (2331) is less than the minimum distance between the two second grooves (1002); and / or The first housing (22) forms a second mounting cavity (201), and the second rotating assembly (23) is at least partially located in the second mounting cavity (201).

4. The fan according to claim 1, characterized in that, It also includes a purification component (4), which is disposed on the lower housing (12). The purification component (4) is located in the first mounting cavity (103). The purification component (4) is used to filter impurities in the air. The purification component (4) is disposed opposite to the air intake direction of the turbine (3). The purification component (4) and the lower housing (12) are detachably connected. The lower housing (12) includes a lower housing body (122) and a ventilation mesh (121). The ventilation mesh (121) forms a plurality of air inlets (104). The ventilation mesh (121) is disposed opposite to the purification component (4). The ventilation mesh (121) and the lower housing body (122) are detachably connected.

5. The fan according to claim 1, characterized in that, It also includes a display module, which is disposed on the identification device (2) or the housing assembly (1), and the display module is used to display the current operating status information of the wind turbine; and / or The control device includes a remote controller and a control circuit board. The control device also includes a remote controller, which is used to change the operating status of the fan remotely.

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