Blowing device

Abstract

The utility model discloses an air blowing device, and relates to the field of intelligent household equipment, and the air blowing device is characterized in that the air blowing device comprises a box body, a first blocking piece and a second blocking piece, the box body is provided with a first lower air outlet, and the first blocking piece is movably connected to the box body so that the first blocking piece can be separated and combined in a reciprocating mode relative to the position where the first lower air outlet is located; a second lower air outlet is formed in the first plugging piece; the second blocking piece is movably connected to the box body so that the second blocking piece can be separated and combined in a reciprocating mode relative to the position where the second lower air outlet is located. By means of cooperation of the first blocking piece and the second blocking piece, free switching of different modes of peripheral diffusion type air outlet and middle centralized air outlet and air outlet volume adjustment in all the modes are achieved, large air volume reversing can be achieved by omitting a swing blade structure, and more uniform air volume is provided in different directions.

Description

Technical Field

[0001] The present invention relates to the field of smart home equipment, and in particular to a hair dryer. Background Art

[0002] At present, a Chinese patent with publication number CN114060893A discloses a heater using an air guide device to discharge air in multiple directions. Figure 1-2 In the structure shown, the air guide device uses a driving mechanism to control the flap movable part of the air duct opening and closing mechanism to flip around the fixed part, thereby changing the blowing direction of the gas in the air duct between the first air guide part and the second air guide part, thereby achieving the purpose of adjusting the blowing angle of the air outlet.

[0003] In the air duct opening and closing mechanism, the movement of the flap movable parts needs to be controlled through a hinge. The hinge structure may produce friction sound or noise when swinging, affecting the user's comfort. More importantly, the use of the hinge structure may cause wear of mechanical parts. Long-term use may reduce the reliability of the flap, increasing the demand for maintenance and replacement of parts. Summary of the invention

[0004] The object of the present invention is to provide a blowing device which has the advantages of adopting a blocking design, changing the air outlet structure, and reducing noise and maintenance requirements.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A blowing device, comprising:

[0007] A box body, wherein the box body is provided with a first lower air outlet;

[0008] A first blocking member, the first blocking member is movably connected to the box body so that the first blocking member can reciprocate relative to the position of the first lower air outlet; the first blocking member is provided with a second lower air outlet;

[0009] The second blocking member is movably connected to the box body so that the second blocking member can reciprocate relative to the position of the second lower air outlet.

[0010] It is further configured that the reciprocating clutch between the first blocking member and the second blocking member is a linear movement.

[0011] It is further configured that: the orthographic projection range of the second lower air outlet is located within the orthographic projection range of the first lower air outlet.

[0012] It is further configured that: the first blocking member is located at the inner side of the first lower air outlet, and an annular air outlet is formed between the first blocking member and the first lower air outlet.

[0013] Further configuration: the first lower air outlet and / or the second lower air outlet is circular.

[0014] Further configuration: also includes: a first guide plate adapted at the first lower air outlet, the inner wall of the first guide plate is a conical surface, and the first guide plate is arranged to expand outward along the air outlet direction.

[0015] It is further configured that: a first closing plate which fits with the first guide plate is provided on the first blocking member.

[0016] Further configuration: also includes: a second guide plate adapted at the second lower air outlet, the inner wall of the second guide plate is a conical surface, and the second guide plate is gathered along the air outlet direction.

[0017] It is further configured that: a second closing plate which fits with the second guide plate is provided on the second blocking member.

[0018] Further configuration: a guide mechanism is also included, which is arranged on the box body, and at least a part of the first blocking member and the second blocking member is located on the guide mechanism.

[0019] Further configuration: the guiding mechanism comprises:

[0020] A first guide member, disposed on the box body;

[0021] The second guide member is arranged on the first blocking member and / or the second blocking member, and the second guide member is slidably connected to the first guide member so that the first blocking member and / or the second blocking member can linearly reciprocate on the first guide member.

[0022] Further configuration: an elastic member is also included, which is arranged between the box body and the first blocking member, and the expansion and contraction direction of the elastic member is the same as the direction of the movement path of the guide mechanism.

[0023] Further arrangement: it also includes: a power source for outputting a rotary motion;

[0024] The transmission structure is suitable for converting the rotary motion of the power source into the linear motion of the first blocking member.

[0025] It is further provided that: the transmission structure is a screw mechanism, at least a part of which is arranged on the output shaft of the power source, and another part of which is arranged on the first blocking member.

[0026] Further configuration: the blowing device is a bathroom heater or a heater or a clothes drying machine or an air conditioner or a dehumidifier or a humidifier.

[0027] Further configuration: the blowing device also includes:

[0028] A temperature sensor and / or a human body sensor is provided at the air outlet.

[0029] Another object of the present invention is to provide a blowing method using the above-mentioned blowing device, comprising at least the following steps:

[0030] Get the user's location information;

[0031] Different air outlet modes are selected according to different positions, and the air outlet modes include: selecting different air outlets for blowing and / or changing the size of any of the air outlets.

[0032] Further setting: the user's location information includes a horizontal distance R between the user's location and the air outlet;

[0033] If the horizontal distance R is within the first threshold range, one of the air outlets is determined to blow air; if the horizontal distance R is within the second threshold range, another air outlet is switched to blow air. Further configuration: the air outlet area of ​​the air outlet is adjusted according to the change of the user's position.

[0034] Further configuration: if the user is far away from the air outlet, the air outlet area of ​​the air outlet is reduced;

[0035] Further setting: if the user is close to the air outlet, the air outlet area of ​​the air outlet is increased.

[0036] Further configuration: the user's location information also includes the height distance between the user's location and the air outlet, and the air outlet area of ​​the air outlet is adjusted according to the change of the height distance.

[0037] Further setting: according to the increase of height distance, the air outlet area of ​​the air outlet is reduced.

[0038] Further setting: according to the reduction of the height distance, the air outlet area of ​​the air outlet is increased.

[0039] Further settings: Get the air outlet temperature and adjust the air outlet mode according to the change of air outlet temperature.

[0040] Further settings: adjust the air outlet mode according to the change of the air outlet temperature; the air outlet mode includes changing the air outlet area of ​​the air outlet.

[0041] Further setting: according to the increase of the outlet air temperature, the outlet air area of ​​the air outlet is reduced.

[0042] Further setting: as the air outlet temperature decreases, the air outlet area of ​​the air outlet is increased.

[0043] Further settings: After determining the user's location, obtain the air outlet temperature.

[0044] In summary, the present invention has the following beneficial effects:

[0045] First, the present invention improves the blowing device, eliminates the swing blade or hinge structure in the prior art, reduces the accumulation of dust and dirt, and uses the cooperation of the first blocking member and the second blocking member to switch the air outlet angle. The blocking design can usually reduce the noise generated by mechanical movement, improve the quiet performance during use, and make users more comfortable when heating. In addition, the use of mechanical parts is reduced, thereby improving the durability and reliability of the equipment and reducing the risk of maintenance and failure.

[0046] The cooperation of the first blocking part and the second blocking part in switching the air outlet angle can realize free switching of different air outlet modes and adjustment of the air outlet volume in each mode, eliminates the obstruction of the airflow by the swing blade or hinge structure, realizes large air volume reversal, and provides more uniform air volume in different directions, so that after being applied in the bathroom, it can better cover the air distribution in the bathroom.

[0047] Second, after the present invention is applied to the bathroom heater, by adding a controller, combined with a temperature sensor and a human body sensor, intelligent wind direction and thermal performance adjustment can be achieved. The controller can sense the temperature of the heater's air outlet in real time based on the signal of the temperature sensor, and the signal of the human body sensor to determine the distance between the human body and the air outlet point. With this information, the controller can intelligently adjust the thermal performance of the air-heated heater and select the appropriate air outlet direction, always keeping it within a comfortable range, and providing a more comfortable heating experience.

[0048] Third, the cooperation between the first blocking member and the second blocking member in the present invention adopts a linear movement opening and closing action, which is simpler and more compact in structure, and has technical progress and advantages in simplifying structure, improving reliability, enhancing high temperature resistance, and facilitating operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is an exploded view of the blowing device;

[0050] Figure 2 It is a schematic diagram of the connection relationship between the first blocking member, the wind collecting plate and the mask;

[0051] Figure 3 It is a schematic diagram of the connection relationship between the second blocking member, the wind collecting plate and the mask;

[0052] Figure 4 is a structural schematic diagram in which the first blocking member is in an open state and the second blocking member is in a closed state;

[0053] Figure 5 is a structural schematic diagram in which the first blocking member is in a closed state and the second blocking member is in an open state;

[0054] Figure 6It is a schematic diagram of a heating or blowing mode in which the first blocking member is in an open state and the second blocking member is in a closed state;

[0055] Figure 7 It is a schematic diagram of a heating or blowing mode in which the first blocking member is in a closed state and the second blocking member is in an open state;

[0056] Figure 8 is a schematic diagram of the ventilation mode.

[0057] In the figure, 10, box body; 20, human body sensor; 30, temperature sensor;

[0058] 100, housing; 101, wind source; 102, heating device; 103, ventilation port; 104, air outlet duct;

[0059] 200, air collecting plate; 201, upper air outlet; 202, air inlet;

[0060] 300, mask; 301, first lower air outlet;

[0061] 400, a first guide plate; 401, a first guide member;

[0062] 500, first blocking member; 501, second lower air outlet; 502, first closing plate; 503, second guide plate; 504, through hole; 600, elastic member;

[0063] 700, second blocking member; 701, second guide member; 702, second closing plate; 703, passive member; 704, hole;

[0064] 800, active parts; 900, power source. DETAILED DESCRIPTION

[0065] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0066] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0067] A blowing device, such as Figure 1 and Figure 2As shown, the box body 10 includes a housing 10. The housing 10 in this embodiment specifically includes a shell 100, an air collecting plate 200 and a mask 300. The shell 100 has an opening. The air collecting plate 200 is arranged at the opening of the shell 100. The air collecting plate 200 is detachably connected to the shell 100. The mask 300 is arranged at the opening of the shell 100. The mask 300 is arranged at an interval between the mask 300 and the air collecting plate 200. The mask 300 is located on the outside of the air collecting plate 200 relative to the shell 100, and the mask 300 is detachably connected to the shell 100 or the air collecting plate 200.

[0068] The blowing device of this embodiment also includes a wind source 101 and an air outlet duct 104. The wind source 101 and the air outlet duct 104 are arranged inside the housing 100. The air outlet duct 104 is inside the housing 100, and the wind source 101 is arranged inside the air outlet duct 104. As an alternative implementation, the wind source 101 is arranged outside the air outlet duct 104, or the wind source 101 is arranged outside the housing 100, and the wind source 101 is connected to the air outlet duct 104 through a pipeline. An air inlet 202 and an upper air outlet 201 are arranged on the air collecting plate 200. One end of the air outlet duct 104 is connected to the air inlet 202, and the other end is connected to the upper air outlet 201. When the wind source 101 is working, the air flow enters from the air inlet 202 and flows out from the upper air outlet 201. The wind source 101 is generally disposed at the most upstream position of the air outlet duct 104 or at a position close to the upstream position, so that the airflow generated by the wind source 101 is immediately delivered into the air outlet duct 104 .

[0069] In this embodiment, the wind source 101 is preferably a fan, and the air is squeezed by the rotation of the fan wheel to generate airflow into the air outlet duct 104. As an alternative embodiment, the wind source 101 can also be a blower or a fan or other pressure-type air outlet tools.

[0070] The blowing device also includes a first blocking member 500, which is movably connected to the housing 10. A first lower air outlet 301 is provided on the mask 300, and the first lower air outlet 301 is connected to the upper air outlet 201. The first blocking member 500 is located at the first lower air outlet 301 of the mask 300, and at least a portion of the first blocking member 500 can completely close the first lower air outlet 301. According to the movably connected state, the first blocking member 500 has a closed state in which it is closed by contacting with the first lower air outlet 301, and an open state in which it is opened by contacting with the first lower air outlet 301. As a preferred embodiment, in Figure 2From the perspective shown, the first blocking member 500 is in a closed state that closes the first lower air outlet 301. In this state, the first blocking member 500 is located between the wind collecting plate 200 and the mask 300, and one end of the first blocking member 500 blocks the upper air outlet 201 of the wind collecting plate 200. There is no limitation on the specific position of the other end of the first blocking member 500. In this embodiment, the other end of the first blocking member 500 is flush with the plane where the mask 300 is located. As an alternative embodiment, the first blocking member 500 protrudes outside the shell 100 relative to the plane where the mask 300 is located. As an alternative embodiment, the first blocking member 500 sinks into the shell 100 relative to the plane where the mask 300 is located. Further, the protrusion and sinking of the first blocking member 500 relative to the mask 300 refers to the protrusion or sinking of the lower end surface of the first blocking member 500 relative to the mask 300. Figure 2 From the perspective, the lower end surface of the first blocking member 500 is flush with the plane where the mask 300 is located. Figure 3 From the perspective, the lower end surface of the first blocking member 500 protrudes relative to the mask 300 .

[0071] Further, in Figure 2 In the perspective shown, the first blocking member 500 moves downward to Figure 3 In this state, the upper end of the first blocking member 500 is separated from the upper air outlet 201, so that the upper air outlet 201 is in an open state; and the lower end of the first blocking member 500 is separated from the first lower air outlet 301, so that the first lower air outlet 301 is in an open state.

[0072] As an alternative embodiment of the arrangement position of the first blocking member 500 , the first blocking member 500 is arranged on the upper side of the wind collecting plate 200 or the lower side of the mask 300 .

[0073] There is no specific limitation on the shape of the path for the first blocking member 500 to perform the opening and closing action. In this embodiment, the moving path can be a linear movement to achieve opening and closing. As an alternative embodiment, the moving path can also be a flip movement or a fan-shaped rotation movement. The flip movement or the fan-shaped rotation movement is driven by a rotary actuator.

[0074] There is no specific limitation on the linear actuator that controls the first blocking member 500 to perform linear movement. A linear actuator essentially moves an object along a straight line, usually back and forth. The linear actuator in this embodiment is a screw mechanism. As an alternative embodiment of the actuator, it can also be a linear push rod, a ball screw mechanism, a pulley mechanism, a pulley mechanism, and a gear rack mechanism.

[0075] On the basis of the above-mentioned embodiment, as a further limited embodiment, in order to better guide the airflow of the first lower air outlet 301 to the outside. The upper air outlet 201 is connected to the first lower air outlet 301 by setting a first guide plate 400. One end of the first guide plate 400 is integrally connected to the air collecting plate 200, or is detachably installed on the air collecting plate 200, and the other end extends to the mask 300 and abuts against the mask 300. As an alternative embodiment, one end of the first guide plate 400 is integrally connected to the mask 300, or is detachably installed on the mask 300, and the other end extends to the air collecting plate 200 and abuts against the air collecting plate 200.

[0076] In this embodiment, the upper air outlet 201 is preferably circular, and as an alternative embodiment, it can also be square, strip, or polygonal. The first lower air outlet 301 is preferably circular, and as an alternative embodiment, it can also be square, strip, or polygonal. The first blocking member 500 is located on the inner side of the first lower air outlet 301, and an annular air outlet is formed between the first blocking member 500 and the first lower air outlet 301.

[0077] The first guide plate 400 is annular and surrounds the outer ring of the upper air outlet 201 and the first lower air outlet 301. Preferably, the cross-section of the first guide plate 400 is a circle that matches the upper air outlet 201. The adaptation here means that the shape and size are better matched and can be connected to each other. As an alternative embodiment, the cross-section of the first guide plate 400 is a square or polygon. The cross-sectional area of ​​the upper end of the first guide plate 400 is greater than or equal to the cross-sectional area of ​​the upper air outlet 201.

[0078] The first guide plate 400 is enclosed in a cylindrical structure, and at least the inner wall of the first guide plate 400 is a conical surface. The first guide plate 400 is arranged to expand outward along the air outlet direction. Specifically, the upper end of the first guide plate 400 is the small end of the conical surface, and the lower end of the first guide plate 400 diffuses outward. The airflow is blown out from the upper air outlet 201, diffuses outward through the surface of the first guide plate 400, and forms a diffused air outlet around. Preferably, the conical surface of the first guide plate 400 is a curved surface. As an alternative embodiment, the conical surface is a straight surface, a curved surface, or a curved surface. When the airflow is blown out from the first lower air outlet 301, it is better guided out through the conical surface of the first guide plate 400.

[0079] The first blocking member 500 is provided with a first closing plate 502 that is adapted to the first guide plate 400. The adaptation here refers to the shape and size of the first closing plate 502 just fitting to the surface of the first guide plate 400. The airflow passes through the surfaces of the first guide plate 400 and the first closing plate 502 in a smooth transition, making the air flow smoother. When the two are closed, the formed fitting surface has better sealing performance. As an alternative embodiment, a portion of the first closing plate 502 is adapted to the first guide plate 400, and the first closing plate 502 partially contacts the first guide plate 400.

[0080] In this embodiment, the body constituting the first blocking member 500 is a solid component, and the first guide plate 400 is located at the outer ring of the solid component. The first blocking member 500 is provided with a second lower air outlet 501 connected to the upper air outlet 201, and the second lower air outlet 501 is provided at the lower end of the first blocking member 500, and the orthographic projection range of the second lower air outlet 501 is located within the orthographic projection range of the first lower air outlet 301. And the middle part of the first blocking member 500 has a through hole 504, one end of the through hole 504 is connected to the second lower air outlet 501, and the other end corresponds to one side of the upper air outlet 201, and can be connected to the upper air outlet 201. As an alternative embodiment of the first blocking member 500, the body constituting the first blocking member 500 is a hollow component with a closed periphery.

[0081] The blowing device further includes a second blocking member 700, which is movably connected to the housing 10, and at least a portion of the second blocking member 700 can completely close the second lower air outlet 501. According to the movably connected position, the second blocking member 700 can reciprocate toward the position of the second lower air outlet 501. The second blocking member 700 has a closed state in which it contacts the second lower air outlet 501 and closes it, and an open state in which it is opened away from the second lower air outlet 501 and opens it.

[0082] exist Figure 3 From the perspective of the second blocking member 700, the second blocking member 700 can be received in the through hole 504. The specific position of the lower end of the second blocking member 700 is not limited. In this embodiment, the second blocking member 700 is located outside the shell 100. Specifically, the second blocking member 700 is located outside the shell 100 at multiple positions, such as outside the wind collecting plate 200, outside the mask 300, or between the wind collecting plate 200 and the mask 300. At different positions, the lower end surface of the second blocking member 700 is at different distances from the second lower air outlet 501.

[0083] exist Figure 3From the perspective of the second blocking member 700, the second blocking member 700 is in a closed state to seal the second lower air outlet 501. The second blocking member 700 sinks to the outside of the housing 100 relative to the plane where the lower end of the first blocking member 500 is located, and a grille is provided at the sunken position to form an effect of shielding the inside of the second lower air outlet 501. As an alternative embodiment, the lower end of the second blocking member 700 is flush with the plane where the lower end of the first blocking member 500 is located. As an alternative embodiment, the second blocking member 700 protrudes to the outside of the housing 100 relative to the plane where the lower end of the first blocking member 500 is located.

[0084] There is no limitation on the shape of the second blocking member 700 . The body of the second blocking member 700 may be solid, or a hollow shell 100 with a closed periphery. The lower end surface of the second blocking member 700 abuts against the second lower air outlet 501 of the first blocking member 500 , and the second lower air outlet 501 may be completely closed.

[0085] Further, in Figure 3 From the perspective shown, the second blocking member 700 moves upward to Figure 5 In this state, the lower end of the second blocking member 700 is separated from the second lower air outlet 501, so that the second lower air outlet 501 is in an open state; and the upper end of the second blocking member 700 is separated from the upper air outlet 201, so that the upper air outlet 201 is in an open state.

[0086] As an alternative embodiment, the second blocking member 700 is located inside the housing 100. As an alternative embodiment, at least a portion of the second blocking member 700 is located inside the housing 100, and a portion of the second blocking member 700 is located outside the housing 100.

[0087] There is no specific limitation on the shape of the path for the second blocking member 700 to perform the opening and closing action. In this embodiment, the moving path can be a linear movement to achieve opening and closing. As an alternative embodiment, the moving path can also be a flip movement or a fan-shaped rotation movement. The flip movement or the fan-shaped rotation movement is driven by a rotary actuator.

[0088] There is no specific limitation on the linear actuator that controls the second blocking member 700 to perform linear movement. A linear actuator essentially moves an object along a straight line, usually back and forth. The linear actuator in this embodiment is a screw mechanism. As an alternative embodiment of the actuator, it can also be a linear push rod, a ball screw mechanism, a pulley mechanism, a pulley mechanism, and a gear rack mechanism.

[0089] On the basis of the above embodiment, as a further limited embodiment, in order to better blow the airflow at the upper air outlet 201 to the second lower air outlet 501, the upper air outlet 201 is connected with the second lower air outlet 501 by setting a second guide plate 503, the second guide plate 503 is located in the through hole 504 of the first blocking member 500, one end of the second guide plate 503 is integrally connected to the lower end surface of the first blocking member 500, or is detachably connected to the lower end surface of the first blocking member 500, and the other end extends to one side of the upper end surface of the first blocking member 500, and is integrally connected to the upper end surface of the first blocking member 500, or is detachably connected to the upper end surface of the first blocking member 500.

[0090] In this embodiment, the second lower air outlet 501 is preferably circular, and as an alternative implementation, it can also be square, strip, or polygonal.

[0091] The second guide plate 503 is annularly arranged around the outer ring of the first lower air outlet 301. Preferably, the shape of the second guide plate 503 around the outer ring of the first lower air outlet 301 is the shape of the through hole 504. As an alternative embodiment, the shape of the through hole 504 is square or polygonal. The second guide plate 503 is installed in the through hole 504.

[0092] When the second lower air outlet 501 is circular, the shape of the cross section of the lower end of the first guide plate 400 is a circle that matches the second lower air outlet 501. The adaptation here means that the shape and size are better matched and can be connected to each other. As an alternative embodiment, the shape of the cross section of the lower end of the first guide plate 400 is square or polygonal. Further, the cross section of the upper end of the first guide plate 400 is a circle that matches the upper air outlet 201. The adaptation here means that the shape and size are better matched and can be connected to each other. As an alternative embodiment, the shape of the cross section of the upper end of the second guide plate 503 is square or polygonal.

[0093] The second guide plate 503 is enclosed in a cylindrical structure, at least the inner wall of the second guide plate 503 is a conical surface, the second guide plate 503 is arranged together along the air outlet direction, the lower end of the second guide plate 503 is the small end of the conical surface, and the air outlet area of ​​the lower end is smaller than the air outlet area of ​​the upper air outlet 201, the airflow is blown out from the upper air outlet 201, and is gathered toward the center through the surface of the second guide plate 503 and blown out from the second lower air outlet 501. Preferably, the conical surface of the second guide plate 503 is a straight surface, an arc surface, or a curved surface. It is convenient to better concentrate and guide the airflow at the upper air outlet 201 to form a central centralized air outlet.

[0094] As an alternative embodiment in which the second blocking member 700 uses the lower end surface to contact the second lower air outlet 501 for opening and closing, the second blocking member 700 is provided with a second closing plate 702 that is adapted to the second guide plate 503 to form a second air outlet channel. The adaptation here refers to the shape and size of the second closing plate 702 just fitting to the surface of the second guide plate 503. When the two fit together, the lower end surface of the second blocking member 700 and the second lower air outlet 501 are in an unclosed state and the second lower air outlet 501 can also be sealed. Through the shape of the surface of the second guide plate 503 and the second closing plate 702, the airflow passes through the surface of the second guide plate 503 and the second closing plate 702 in a smooth transition, making the air outlet smoother. When the two are closed, the formed fitting surface has better sealing. As an alternative embodiment, a part of the second closing plate 702 fits the second guide plate 503, and the second closing plate 702 partially contacts the second guide plate 503.

[0095] In this embodiment, when the first blocking member 500 and the second blocking member 700 perform the opening and closing action through the linear actuator, they have a first state in which they leave the position of the second lower air outlet 501 to open it and simultaneously close the first lower air outlet 301, and a second state in which they come into contact with the second lower air outlet 501 to close it and simultaneously open the first lower air outlet 301.

[0096] like Figure 4 and Figure 5 As shown, the blowing device further includes a guiding mechanism, which is disposed on the box body 10 so as to enable the second blocking member 700 to move linearly toward the second lower air outlet 501 .

[0097] There is no specific limitation on the structure of the guide mechanism, as long as it can make the second blocking member 700 move in a straight line. Preferably, the guide mechanism includes a first guide member 401 and a second guide member 701. The first guide member 401 is arranged on the wind collecting plate 200, and the second guide member 701 is arranged on the second blocking member 700. When the screw drives the nut to rotate, the nut and the second blocking member 700 are restricted by the guide mechanism, so that the second blocking member 700 reciprocates linearly on the first guide member 401. In this embodiment, the first guide member 401 is a guide rod, and the second guide member 701 is a slide groove. As an alternative embodiment, the first guide member 401 is arranged on the shell 100 or the mask 300.

[0098] In this embodiment, the extension length of the screw rod extending toward the side of the first lower air outlet 301 needs to satisfy the lower end surface of the second blocking member 700 to contact the second lower air outlet 501 to close it, and at the same time, the upper end surface of the first blocking member 500 leaves the upper air outlet 201, connecting the upper air outlet 201 and the first lower air outlet 301. Therefore, the extension length of the screw rod is at least between the air collecting plate 200 and the mask 300. As an alternative embodiment, the extension length of the screw rod is at least located outside the mask 300. The linear reciprocation of the second blocking member 700 toward the side of the second lower air outlet 501 can form air outlet areas of different sizes, which can be achieved by the lower end surface of the second blocking member 700 leaving the second lower air outlet 501 and the second blocking member 700 being in different upward positions.

[0099] The blowing device also includes a power source 900, which is suitable for providing power for opening and closing actions to the first blocking member 500 and the second blocking member 700. The power for executing the first blocking member 500 and the second blocking member 700 can be set separately, or one power source 900 can be set, and the second blocking member 700 is clutch-transmitted to the first blocking member 500, and the two move together. Preferably, one power source 900 is set, and the first blocking member 500 and the second blocking member 700 are driven together through the linkage relationship. As an alternative embodiment, two power sources 900 are set, which act on the first blocking member 500 and the second blocking member 700 respectively.

[0100] In this embodiment, the power source 900 is a power source 900 that outputs a rotary motion, such as a motor. The rotary motion is output by the motor. The power source 900 is arranged on the inner side of the housing 100, and the motor is used to drive the linear actuator of the lead screw mechanism in this embodiment. As an alternative embodiment, when the linear actuator does not use a mechanism with a rotary motion, the linear actuator can be directly selected as an electric push rod or a hydraulic cylinder or an oil cylinder or an air cylinder. The power source 900 is fixedly arranged on the inner side of the housing 100. As an alternative embodiment, the power source 900 can also be arranged outside the housing 100.

[0101] In this embodiment, the blowing device also includes a transmission structure suitable for converting the rotary motion of the power source into the linear motion of the first blocking member. Specifically, the transmission structure refers to a transmission connection by a screw mechanism. The screw mechanism is located in the housing 100, and the screw mechanism includes an active member 800 and a passive member 703. The active member 800 is connected to the power source 900 by transmission, and the passive member 703 is arranged on the second blocking member 700. The active member 800 is connected to the passive member 703 by transmission. The active member 800 is a screw, and the passive member 703 is a nut. The second blocking member 700 has a hole 704 for the screw to pass through and penetrates the nut. The rotation of the power source 900 drives the screw to rotate, and the rotary motion of the screw is converted into the rotation of the nut. The nut is fixed on the second blocking member 700, so it can drive the second blocking member 700 to rotate together.

[0102] like Figure 4 As shown, the blowing device also includes an elastic member 600, which is arranged between the box body 10 and the first blocking member 500. The expansion and contraction direction of the elastic member 600 is the same as the direction of the movement path of the guide mechanism. Specifically, the elastic member 600 is arranged between the first blocking member 500 and the air collecting plate 200. The elastic member 600 is preferably a tension spring, one end of the elastic member 600 is connected to the air collecting plate 200 near the upper air outlet 201, and the other end is connected to the upper side of the first blocking member 500. As an alternative embodiment, the elastic member 600 can also be other metal springs or high temperature resistant elastic bands. Reference Figure 2 , is the initial state of the elastic member 600. When the second blocking member 700 moves downward, refer to Figure 5 , a force is applied to the first blocking member 500 away from the upper air outlet 201, so that the first blocking member 500 moves linearly toward the first lower air outlet 301, thereby opening the first lower air outlet 301, and the air flow in the air outlet duct 104 is blown toward the upper air outlet 201 to the first lower air outlet 301, and blown out from the first lower air outlet 301.

[0103] The first blocking member 500 can linearly reciprocate toward one side of the first lower air outlet 301 to form air outlet areas of different sizes, which can be achieved by moving the second blocking member 700 downward to different positions.

[0104] Based on the above implementation, as a further limited implementation, refer to Figure 1 The blowing device also includes a ventilation port 103 disposed on the housing 100 , and the wind source 101 is a bidirectional wind source 101 , that is, it has a bidirectional impeller, and at least a part of the impeller corresponds to the ventilation port 103 .

[0105] According to the above-mentioned embodiment, the different air outlets referred to are the first lower air outlet 301 and the second lower air outlet 501 .

[0106] There is no specific limitation on the specific application scenario and application method of the hair dryer of the above embodiment. The hair dryer of this embodiment is specifically applied to a bathroom heater or a space heater. As an alternative implementation mode, the hair dryer is specifically applied to a clothes drying machine or an air conditioner or a dehumidifier or a humidifier.

[0107] On the basis of the above-mentioned embodiment, as a further limited embodiment, the blowing device also includes a temperature sensor 30 and / or a human body sensor 20 and a controller. The controller is respectively connected to the temperature sensor 30 and / or the human body sensor 20 and the power source 900 in communication. The power source 900 is controlled by the controller, and the controller receives the temperature signal of the temperature sensor 30 and / or the distance signal of the human body sensor 20, and starts or shuts down the power source 900 according to the temperature signal and / or the distance signal. By adding a controller, combining the temperature sensor 30 and the human body sensor 20, intelligent wind direction and thermal performance adjustment can be achieved. The controller can sense the temperature of the heater's air outlet in real time according to the signal of the temperature sensor 30, and the signal of the human body sensor 20 to judge the distance between the human body and the air outlet point. Through this information, the controller can intelligently adjust the thermal performance of the air-heating heater and select the appropriate air outlet direction, always keeping it within a comfortable range, and providing a more comfortable heating experience.

[0108] In this embodiment, the human body sensor 20 is an infrared sensor. As an alternative embodiment, it can also be an ultrasonic sensor, a microwave radar sensor, or any combination of infrared sensors, ultrasonic sensors, and microwave radar sensors.

[0109] On the basis of the above embodiment, as a further limited embodiment, a blowing method of a blowing device at least comprises the following steps:

[0110] Obtaining the user's location information, which is used to determine the user's location;

[0111] Different air outlet modes are selected according to different positions. In this embodiment, the air outlet modes include: selecting different air outlets for blowing and / or changing the size of any of the air outlets. In this embodiment, the size of the air outlet is specifically the air outlet area of ​​the air outlet. There is no limitation on the specific form of changing the air outlet area. The air outlet can be closed by a closed component, or the shape of the air outlet itself can be reduced or expanded. A specific implementation method can refer to the closing action of the air outlet by the blocking member in the above-mentioned blowing device.

[0112] In this embodiment, the different air outlets referred to may be air outlets whose air outlet paths do not overlap, or may be air outlets in the above-mentioned blowing device, in which one air outlet is arranged on the air outlet path of another air outlet to form a certain overlapping area. By switching the positions of different blocking members, different air outlets can be opened respectively.

[0113] In this embodiment, the user's location information includes the horizontal distance R between the user's location and the air outlet; the horizontal distance R has a preset threshold. If the horizontal distance R is within a first threshold range, one of the air outlets is determined for blowing air; if the horizontal distance R is within a second threshold range, switch to another air outlet for blowing air.

[0114] Furthermore, the preset threshold refers to different horizontal distances, which can be a value or a specific value range. It can also be to define two areas, in which the range of one area meets a threshold and the range of the other area exceeds the threshold.

[0115] The blowing method in this embodiment can refer to the above-mentioned blowing device, Figure 6 , using the human body sensor 20 to detect the distance between the human body and the center of the first lower air outlet 301 or the second lower air outlet 501, the horizontal distance between the human body and the center of the first lower air outlet 301 or the second lower air outlet 501 is R;

[0116] When 0≤R≤R1, the initial state is central centralized blowing, a part of the first blocking member 500 contacts the first lower air outlet 301 to close the first lower air outlet 301, the second blocking member 700 is away from the second lower air outlet 501 to open the second lower air outlet 501, and the distance between the second blocking member 700 and the second lower air outlet 501 is h; the blowing air volume is the largest, and the thermal performance of the heater is the best;

[0117] When R1≤R≤R2, the power source 900 drives the second blocking member 700 to move a distance h3 toward the second lower air outlet 501; wherein, h3>h; in this state, a portion of the second blocking member 700 contacts the second lower air outlet 501 to close the second lower air outlet 501, and the first blocking member 500 moves away from the first lower air outlet 301 to open the first lower air outlet 301; at this time, the air outlet is switched to diffuse air outlet all around.

[0118] Furthermore, in the above-mentioned blowing method, the air outlet area of ​​the air outlet is adjusted according to the change of the user's position. For example, if the user's position is far away from the air outlet, the air outlet area of ​​the air outlet is reduced; if the user's position is close to the air outlet, the air outlet area of ​​the air outlet is increased. Specifically, in combination with the horizontal distance R, the air outlet area of ​​the air outlet is reduced according to the increase of the horizontal distance R; and the air outlet area of ​​the air outlet is increased according to the decrease of the horizontal distance R. The purpose of this setting is to control the airflow blown out by the blowing device when the human body is at a position far away from the air outlet. After passing through the air outlet with the area reduced, the airflow is compressed and blown out, and can be blown to a farther position. When the human body is close to the air outlet, the air outlet area is expanded to increase the air output.

[0119] Further, the area of ​​the air outlet can be adjusted by referring to the above-mentioned blowing device, Figure 7 When R>R2, the power source 900 drives the second blocking member 700 to move a distance h4 toward the second lower air outlet 501; wherein, h4>h3>h; the flow area of ​​the surrounding second air outlet channels increases, the air volume increases, and the thermal performance of the heater is improved, so as to better perform long-distance space heating.

[0120] As an alternative implementation, the user's location information also includes the height distance between the user's location and the air outlet, and the air outlet area of ​​the air outlet is adjusted according to the change in the height distance. For example, as the height distance increases, the air outlet area of ​​the air outlet is reduced; as the height distance decreases, the air outlet area of ​​the air outlet is increased. In actual applications, users have different heights and different distances from the air outlet. When the user is shorter or squats, the height distance increases, thereby reducing the air outlet area of ​​the air outlet, thereby blowing the airflow to a lower space.

[0121] As an alternative implementation, when the user's height is not at the same level as the air outlet, an infrared sensor can be used to measure the straight-line distance between the air outlet and the human body, which is usually inclined. The horizontal distance R or height distance is calculated using the Pythagorean theorem.

[0122] On the basis of the above-mentioned implementation manner, as a further limited implementation manner, a blowing method of a blowing device further includes, after determining the user position, obtaining the temperature under the air outlet, and adjusting the air outlet mode according to the change of the air outlet temperature.

[0123] In this embodiment, the air outlet mode is adjusted according to the change of the air outlet temperature; the air outlet mode includes changing the air outlet area of ​​the air outlet. Specifically, when the air outlet temperature increases, the air outlet area of ​​the air outlet is reduced; when the air outlet temperature decreases, the air outlet area of ​​the air outlet is increased. The purpose of this setting is also to control the airflow blown out by the blowing device when the human body is far away from the air outlet. After passing through the air outlet with a reduced area, the airflow is compressed and blown out, and can be blown to a farther position. When the human body is close to the air outlet, the air outlet area is expanded to increase the air volume.

[0124] In this embodiment, the temperature under the air outlet is obtained in real time. As an alternative embodiment, the temperature under the air outlet can also be obtained by timing, according to a specific interval duration, or according to the duration of working time.

[0125] As an alternative implementation, after determining the user's position, the outlet air temperature is obtained. The blowing method in this implementation can refer to the above-mentioned blowing device, and refer to Figure 6 , using the temperature sensor 30 to detect the temperature T at the lower side of the first lower air outlet 301 or the second lower air outlet 501;

[0126] When T≤T1, it is in the initial state, and the air is discharged centrally. A part of the first blocking member 500 contacts the first lower air outlet 301 to close the first lower air outlet 301, and the second blocking member 700 is away from the position of the second lower air outlet 501 to open the second lower air outlet 501. The distance between the second blocking member 700 and the position of the second lower air outlet 501 is h.

[0127] When T1<T<T2, the power source 900 drives the second blocking member 700 to move toward the second lower air outlet 501 by a distance h1;

[0128] When T≥T2, the power source 900 drives the second blocking member 700 to move toward the second lower air outlet 501 by a distance h2, wherein h1<h2<h;

[0129] In this embodiment, the temperature T is located at the lower side of the air outlet, and at least two are arranged along a straight line, and the average temperature is the measured temperature.

[0130] The above-mentioned embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A blowing device, characterized in that: include: A box body (10), wherein the box body (10) is provided with a first lower air outlet (301); A first blocking member (500), the first blocking member (500) being movably connected to the box body (10) so that the first blocking member (500) can reciprocate relative to the position of the first lower air outlet (301); the first blocking member (500) is provided with a second lower air outlet (501); A second blocking member (700), the second blocking member (700) is movably connected to the box body (10) so that the second blocking member (700) can reciprocate relative to the position of the second lower air outlet (501).

2. The blowing device according to claim 1, characterized in that: The reciprocating clutch of the first blocking member (500) and the second blocking member (700) is a linear movement.

3. The blowing device according to claim 1, characterized in that: The orthographic projection range of the second lower air outlet (501) is located within the orthographic projection range of the first lower air outlet (301).

4. The blowing device according to claim 3, characterized in that: The first blocking member (500) is located on the inner side of the first lower air outlet (301), and an annular air outlet is formed between the first blocking member (500) and the first lower air outlet (301).

5. The blowing device according to claim 3, characterized in that: The first lower air outlet (301) and / or the second lower air outlet (501) are circular.

6. The blowing device according to claim 1, characterized in that: Also includes: A first guide plate (400) is adapted to be located at the first lower air outlet (301), wherein the inner wall of the first guide plate (400) is a conical surface, and the first guide plate (400) is arranged to expand outwards along the air outlet direction.

7. The blowing device according to claim 6, characterized in that: The first blocking member (500) is provided with a first closing plate (502) which fits with the first guide plate (400).

8. The blowing device according to claim 1, characterized in that: Also includes: A second guide plate (503) is adapted to be located at the second lower air outlet (501), wherein the inner wall of the second guide plate (503) is a conical surface, and the second guide plate (503) is arranged to be gathered along the air outlet direction.

9. The blowing device according to claim 8, characterized in that: The second blocking member (700) is provided with a second closing plate (702) which fits with the second guide plate (503).

10. The blowing device according to any one of claims 1 to 9, characterized in that: It also comprises a guiding mechanism, which is arranged on the box body (10), and at least a part of the first blocking member (500) and the second blocking member (700) are located on the guiding mechanism.

11. The blowing device according to claim 10, characterized in that: The guiding mechanism comprises: A first guide member (401) is provided on the box body (10); The second guide member (701) is arranged on the first blocking member (500) and / or the second blocking member (700), and the second guide member (701) is slidably connected to the first guide member (401) so that the first blocking member (500) and / or the second blocking member (700) can linearly reciprocate on the first guide member (401).

12. The blowing device according to any one of claims 1 to 9 and 11, characterized in that: It also comprises an elastic member (600) which is arranged between the box body (10) and the first blocking member (500), and the expansion and contraction direction of the elastic member (600) is the same as the direction of the movement path of the guide mechanism.

13. The blowing device according to any one of claims 1 to 9 and 11, characterized in that: Also includes: A power source (900) is used to output a rotary motion; The transmission structure is suitable for converting the rotary motion of the power source (900) into the linear motion of the first blocking member (500).

14. The blowing device according to claim 13, characterized in that: The transmission structure is a screw mechanism, at least one part of which is arranged on the output shaft of the power source (900), and the other part of which is arranged on the first blocking member (500).

15. The blowing device according to any one of claims 1-9, 11 and 14, characterized in that: The blowing device is a bathroom heater, a heating device, a clothes drying machine, an air conditioner, a dehumidifier or a humidifier.

16. The blowing device according to any one of claims 1-9, 11 and 14, characterized in that: The blowing device also includes: A temperature sensor (30) and / or a human body sensor (20) are arranged at the air outlet position.

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