Blowing device

Abstract

The utility model discloses a blowing device, which relates to the field of household appliances, and is characterized in that the blowing device comprises a box body, an air duct and an air source, the box body at least comprises a mask, and the mask is provided with a first blowing port, a second blowing port and a third blowing port which are sequentially arranged; the air duct comprises an air blowing duct for conveying flowing air flow to the first air blowing opening and the third air blowing opening, and further comprises a branch air duct for conveying air flow to the second air blowing opening; the branch air duct is provided with at least two different inlets. The branch air channel is provided with at least two different inlets, and air entering from the different inlets of the branch air channel can be blown out towards the second air blowing opening in a centralized mode, so that centralized air outlet is achieved, and large-air-volume air outlet of the second air blowing opening is achieved. And moreover, through the first air blowing opening and the third air blowing opening which are sequentially formed in the two sides of the second air blowing opening, two-side air outlet is achieved, the user can freely switch multiple air blowing modes according to the requirements, and the user experience is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to a blowing device. Background Art

[0002] The air outlets of existing air-heating heaters are usually side outlets or middle concentrated outlets. Since the space of the heater box is limited, the air duct structure that can be arranged in the limited space is limited, so usually only one of the linear air outlets and circular air outlets can be selected, and different air duct structures are used for adaptation. As a result, the heaters of the prior art can only achieve air outlets on both sides or concentrated air outlets in the middle, and cannot meet the user's needs for free switching between air outlets on both sides and concentrated air outlets in the middle. Utility Model Content

[0003] The purpose of the utility model is to provide a hair dryer, which has the advantage of freely switching between multiple air outlet modes, thereby effectively improving the user experience.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A blowing device, comprising:

[0006] A box body, the box body at least comprising a mask, the mask being provided with a first blowing port, a second blowing port and a third blowing port arranged in sequence;

[0007] The air duct comprises a blowing duct for conveying flowing airflow to the first blowing port and the third blowing port respectively, and also comprises a branch air duct for conveying airflow to the second blowing port, wherein the branch air duct has at least two different inlets.

[0008] Further configuration: the first air outlet and / or the third air outlet are / is linearly configured.

[0009] Further configuration: the second air outlet is circular, elliptical, ring-shaped or arc-shaped.

[0010] It is further configured that: the branch air duct has two inlets, and the two inlets are respectively connected to different blowing air ducts.

[0011] It is further configured that: the branch air duct has an outlet, and the outlet is connected to the second blowing outlet.

[0012] It is further configured that the width of the branch air duct gradually narrows from its inlet to its outlet.

[0013] It is further configured that: at least two wind guide surfaces for guiding the flow toward the outlet are provided on the branch air duct, one end of the wind guide surface is adapted to the inlet side, and the other end is adapted to the outlet.

[0014] It is further configured that the air duct also includes a first channel configured on the first blowing port and a second channel configured on the third blowing port, and at least two different inlets of the branch air duct are respectively connected to the first channel and the second channel.

[0015] Further configuration: also includes an air collecting plate, the first channel and the second channel are arranged on the air collecting plate.

[0016] Further configuration: also includes an air door, which is arranged in the first channel and the second channel, and has a first position of opening the blowing air duct and closing the branch air duct and a second position of opening the branch air duct and closing the blowing air duct.

[0017] 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.

[0018] In summary, the utility model has the following beneficial effects:

[0019] First, since the branch air duct has at least two different inlets in the utility model, the wind entering from the different inlets of the branch air duct can be concentrated and blown out to the second air outlet, thereby centralized air outlet, so that the second air outlet can achieve large air volume outlet. In addition, by sequentially arranging the first air outlet and the third air outlet on both sides of the second air outlet, air outlet on both sides is achieved, and users can freely switch between multiple blowing modes according to their needs, effectively improving user experience.

[0020] Second, in the utility model, the width of the branch air duct gradually narrows from its inlet to its outlet, which can compress the airflow entering the branch air duct and further accelerate it to blow out to the second air outlet, thereby improving the air outlet efficiency. In particular, when applied to a heater, the heating efficiency can be further improved.

[0021] Third, in the utility model, at least two wind guide surfaces for guiding the air toward the outlet side are provided on the branch air duct. The airflows entering the branch air duct from different inlets converge at the second blowing outlet. The wind guide surfaces are more conducive to the airflow blowing out from the branch air duct and avoid mutual impact between different airflows, thereby increasing wind resistance and reducing wind speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the explosion structure of the blowing device;

[0023] Figure 2 is a schematic diagram of the air inlet path of the blowing device;

[0024] Figure 3 It is a structural schematic diagram of the branch air duct;

[0025] Figure 4 It is a schematic diagram of the structure of the air collecting plate and the first channel and the second channel;

[0026] Figure 5 is a schematic diagram of one arrangement of the heating device;

[0027] Figure 6 is a schematic diagram of another arrangement of the heating device;

[0028] Figure 7 It is a schematic diagram of the structure of the blowing device on both sides;

[0029] Figure 8 It is a schematic diagram of the structure of the central concentrated blowing of the blowing device;

[0030] Fig. 9 It is a structural schematic diagram of the left-side blowing and the middle blowing of the blowing device;

[0031] Fig.10 It is a structural schematic diagram of the right-side blowing and the middle blowing of the blowing device.

[0032] In the figure, 100, housing; 101, ventilation port; 102, air inlet gap; 103, hollow area; 200, mask; 201, first air outlet; 202, second air outlet; 203, third air outlet;

[0033] 210. Heating device;

[0034] 300, air blowing duct; 301, first channel; 302, second channel;

[0035] 400, wind source; 401, first blade; 402, second blade; 403, power source;

[0036] 500, ventilation duct;

[0037] 600, wind collecting plate; 601, air inlet; 602, first air outlet; 603, second air outlet;

[0038] 710, first air door; 720, second air door;

[0039] 810, a first motor; 820, a second motor;

[0040] 900, branch air duct; 901, air guide surface; 902, outlet; 903, arched portion; 904, recessed portion; 905, inlet. DETAILED DESCRIPTION

[0041] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0042] 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 a limitation on the present invention.

[0043] A hair dryer includes a housing, the housing includes at least a mask 200, and the mask 200 is an independently arranged shielding member. When the housing is in a stationary state, the mask 200 is used as a surface facing the user. There is no limitation on the specific shape of the mask 200. In the present embodiment, the mask 200 is a rectangular member, preferably a rectangle, having a long side direction and a wide side direction. As an alternative embodiment, the mask 200 is a square. As an alternative embodiment, the mask 200 is a circle. As an alternative embodiment, the mask 200 is a polygon.

[0044] Generally, under the conventional setting of the box, the box includes a shell 100. In this embodiment, the shell 100 has a receiving cavity inside and an opening on one side. The shape of the shell 100 is preferably a rectangular parallelepiped. As an alternative embodiment, the shape of the shell 100 can also be a cube, a cylinder, or a polygon. The mask 200 is an independent component and is detachably connected to the shell 100.

[0045] The mask 200 is provided with a first blowing port 201, a second blowing port 202 and a third blowing port 203 arranged in sequence, and the sequential arrangement refers to the arrangement along a certain direction, such as a linear direction, or according to the boundary shape of the mask. The linear direction can be a straight line direction, a broken line direction, or a curved line direction. Further arranged along the boundary shape of the mask, for example, along the length direction of the mask 200. As an alternative embodiment, the sequential arrangement can also be arranged along the width direction of the mask 200. As an alternative embodiment, the sequential arrangement can also be arranged along the diagonal direction of the mask 200. In the linear arrangement, preferably, the second blowing port 202 is located at the midpoint of the first blowing port 201 and the third blowing port 203. As an alternative embodiment, the spacing between the second blowing port 202 and the first blowing port 201 and the third blowing port 203 is not equal.

[0046] like Figure 1As shown, there is no specific restriction on the shape, size and number of the first blowing port 201, the second blowing port 202 and the third blowing port 203. In this embodiment, the first blowing port 201 and the third blowing port 203 are arranged linearly. As an alternative embodiment, the first blowing port 201 is arranged linearly, and the third blowing port 203 is arranged circularly, annularly or arc-shaped. As an alternative embodiment, the third blowing port 203 is arranged linearly, and the first blowing port 201 is arranged circularly, annularly or arc-shaped. As an alternative embodiment, the first blowing port 201 and the third blowing port 203 are arranged circularly, annularly or arc-shaped. In this embodiment, the second blowing port 202 is arranged circularly, and as an alternative embodiment, the second blowing port 202 is arranged elliptically, annularly or arc-shaped. The circle and the ellipse are usually a single closed area. The ring is usually an area composed of an outer ring and an inner ring, such as a circular ring or a rectangular ring. The arc is usually a curved segment with two ends that are not closed. As an alternative implementation, the second blowing port 202 may also be arranged linearly.

[0047] On the basis of the above implementation manner, as a further limited implementation manner, Figure 1 and Figure 7 As shown, the blowing device includes an air duct and an air source 400, and the air source 400 is suitable for conveying a flowing airflow into the air duct. It also includes a blowing duct 300 for conveying a flowing airflow to the first blowing port 201 and the third blowing port 203 respectively. There is no specific restriction on the structure of the blowing duct 300. In this embodiment, the number of the blowing ducts 300 is adapted to the first blowing port 201 and the third blowing port 203, that is, there are two blowing ducts 300, which are arranged on both sides of the length direction of the mask 200, and are connected to the first blowing port 201 and the third blowing port 203, respectively, to ensure the air outlet performance of each blowing duct 300. The cross-section of the blowing duct 300 is a rectangle, and the width direction of the rectangle is arranged along the width direction of the box body to ensure the air outlet performance, and the width of the blowing duct 300 is close to the width of the box body. As an alternative embodiment, the cross-section of the blowing duct 300 is a rectangle, and the width direction of the rectangle is arranged along the length direction of the box body. As an alternative embodiment, the cross section of the blowing duct 300 is square or circular.

[0048] like Figure 1 , Figure 3 and Figure 7As shown, in the present embodiment, the blowing device also includes a branch air duct 900 for conveying airflow to the second blowing port 202. The branch air duct 900 has at least two different inlets 905. There are two inlets 905 of the branch air duct 900, and the two inlets 905 are respectively connected to different blowing air ducts 300. The branch air duct 900 extends along the length direction of the mask 200, and the inlets 905 of the branch air duct 900 are respectively located at both ends and are respectively connected to the blowing air duct 300. The branch air duct 900 has an outlet 902, and the outlet 902 is located on the upper side of the branch air duct 900, and the outlet 902 is connected to the second blowing port 202. The shape of the outlet 902 is adapted to the shape of the second blowing port 202, preferably circular. As an alternative embodiment, the shape of the outlet 902 can be square or polygonal. The cross section of the branch duct 900 is a rectangle, the width of the rectangle is arranged along the width direction of the box, and the width of the branch duct 900 is adapted to the width of the blowing duct 300. As an alternative embodiment, one end of the branch duct 900 is adapted to the second blowing port 202, and the other end is adapted to the wind source 400.

[0049] Further, such as Figure 3 and Figure 7 As shown, the width of the branch air duct 900 gradually narrows from its inlet 905 to the outlet 902, which is conducive to accelerating the blowing of air flow and can increase the wind speed of concentrated air outlet.

[0050] At least two wind guide surfaces 901 for guiding the flow toward one side of the outlet 902 are provided on the branch air duct 900. One end of the wind guide surface 901 is adapted to the side of the inlet 905 and extends to the inlet 905, and the other end is adapted to the outlet 902. The end is preferably adapted to the center of the outlet 902 and extends upward to be flush with the outlet 902. Specifically, the wind guide surface 901 is integrally arranged with the branch air duct 900, and the shape of the wind guide surface 901 is arc-shaped, and the concave surface is arranged upward. As an alternative embodiment, the wind guide surface 901 and the branch air duct 900 are detachably arranged, and an independent wind guide component is arranged in the branch air duct 900, and the wind guide surface 901 is located on the wind guide component. As an alternative embodiment, the shape of the wind guide surface 901 is an inclined surface, and the inclined surface is arranged upward.

[0051] On the basis of the above implementation manner, as a further limited implementation manner, Figure 1 and Figure 4 As shown, the air duct also includes a first channel 301 configured on the first blowing port 201 and a second channel 302 configured on the third blowing port 203, and at least two different inlets 905 of the branch air duct 900 are connected to the first channel 301 and the second channel 302 respectively.

[0052] like Figure 2 and Figure 3As shown, in this embodiment, an air collecting plate 600 is further included, and the first channel 301 and the second channel 302 are arranged on the air collecting plate 600. The air collecting plate 600 is arranged on the housing 100 and is relatively located on the inner side of the mask 200. The air collecting plate 600 is provided with an air inlet 601, and a first air outlet 602 and a second air outlet 603 respectively connected to the first channel 301 and the second channel 302. The air collecting plate 600 is spaced apart from the mask 200 to form an air inlet gap 102, and the air inlet gap 102 is connected to the air inlet 601.

[0053] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the blowing duct 300 is arranged in an "L" shape, a part of the blowing duct 300 is arranged and parallel to the bottom wall of the housing 100, and the other part is arranged and parallel to the side wall of the housing 100. The branch duct 900 is arranged in layers with the blowing duct 300 relative to the bottom wall of the housing 100, and the branch duct 900 is arranged on the upper side of the air collecting plate 600. In order not to affect the air intake of the air inlet 601 on the air collecting plate 600, a hollow area 103 is arranged between the branch duct 900 and the air collecting plate 600, and the hollow area 103 is interconnected with the air inlet 601 and the air inlet gap 102. A part of the hollow area 103 is formed by an arched portion 903 arranged on the lower side of the branch duct 900. In order to further reduce the wind resistance, another part of the hollow area 103 is also formed by recessed portions 904 arranged on both sides of the branch air duct 900 along the width direction of the box body, and the recessed portions 904 are connected to the hollow area 103.

[0054] On the basis of the above implementation manner, as a further limited implementation manner, Figure 5 and Figure 6 As shown, the blowing device also includes a heating device 210, which is a PTC ceramic heating sheet, usually installed in the air duct using a frame. In this embodiment, two arrangements of the heating device 210 are given, referring to Figure 5 , is one of the arrangements, the heating device 210 is arranged on a portion of the blowing duct 300 parallel to the bottom wall of the housing 100, such an arrangement can reduce the total thickness of the box. As an alternative embodiment, refer to Figure 6 , which is another arrangement, the heating device 210 is disposed on a portion of the blowing duct 300 parallel to the side wall of the housing 100 .

[0055] like Figure 4 and Figure 7As shown, it also includes a damper, which is arranged in the first channel 301 and the second channel 302, and has a first position of opening the blowing air duct 300 and closing the branch air duct 900 and a second position of opening the branch air duct 900 and closing the blowing air duct 300. The specific structure of the damper is not limited. In this embodiment, the heating device 210 of the blowing device is arranged upstream of the damper. Two dampers are provided, which are respectively arranged in the first channel 301 and the second channel 302. The first damper 710 includes a first swing blade and a first motor 810 rotatably connected in the first channel 301, and the second damper 720 also includes a second swing blade and a second motor 820 rotatably connected in the second channel 302. The first swing blade and the second swing blade can close or open the first channel 301 and the second channel 302, and the swing blade is driven to swing by the rotation of the motor, thereby closing the first channel 301 and the second channel 302.

[0056] By controlling the two dampers and opening or closing one or two air outlets, you can switch between multiple blowing modes freely, effectively improving the user experience. Figure 7 As shown, taking the schematic orientation given in the figure as an example, from left to right are the first blowing port 201, the second blowing port 202 and the third blowing port 203. The first air door 710 on the left and the second air door 720 on the right are both in the position of opening the blowing air duct 300 and relative to the branch air duct 900, the blowing air duct 300 on the left and the blowing air duct 300 on the right are in the open state, and the first blowing port 201 and the third blowing port 203 are blowing. Figure 8 As shown, the first air door 710 on the left and the second air door 720 on the right are both in the position of opening the branch air duct 900 and relative to the blowing air duct 300, the blowing air duct 300 on the left and the blowing air duct 300 on the right are in the closed state, and the air flow is blown out from the second blowing port 202. Fig. 9 As shown, the left blowing duct 300 is in a closed state, and the right blowing duct 300 is in an open state, and air flows out from the second blowing port 202 and the third blowing port 203. Fig.10 As shown, the left blowing duct 300 is in an open state, and the right blowing duct 300 is in a closed state, and the airflow is blown out from the first blowing port 201 and the second blowing port 202. The user can selectively open the required air outlet using the switch according to his / her position. As an alternative implementation, the human body position can also be identified by a human body sensor, and the required air outlet can be opened according to the human body position.

[0057] On the basis of the above implementation manner, as a further limited implementation manner, Figure 1 and Figure 7As shown, the air duct also includes a ventilation duct 500, which is arranged in the housing 100 and is located on the lower side of the wind collecting plate 600. A ventilation port 101 is also provided on the housing 100, and a portion of the ventilation duct 500 is connected to the wind source 400, and a portion is connected to the ventilation port 101. In this embodiment, the wind source 400 includes a wind wheel and a power source 403 for driving the wind wheel to rotate, and the power source 403 is preferably a motor. The wind wheel has a first blade 401 and a second blade 402 with different rotation directions, and the first blade 401 and the second blade 402 correspond to the ventilation duct 500 and the blowing duct 300 respectively, and the forward rotation and reverse rotation of the wind wheel are used to provide flowing airflow to the ventilation duct 500 and the blowing duct 300 respectively. As an alternative embodiment, the wind source 400 can also be two unidirectional wind wheels, which are respectively arranged corresponding to the ventilation duct 500 and the blowing duct 300. In this embodiment, the ventilation duct 500 is layered relative to the bottom wall of the housing 100 and the blowing duct 300, and is located in the housing 100 near the bottom wall of the housing 100. As an alternative embodiment, the ventilation duct 500 is layered relative to the bottom wall of the housing 100 and the blowing duct 300, and is located in the housing 100 near the wind collecting plate 600.

[0058] The specific application scenarios and application methods of the blowing device in the above embodiment are not specifically limited. This embodiment also provides a blowing device, which is a bathroom heater or a heater. As an alternative implementation, the blowing device is a clothes drying machine or an air conditioner or a dehumidifier or a humidifier.

[0059] 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, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A blowing device, characterized in that: include: A box body, the box body at least comprising a mask (200), the mask (200) being provided with a first air blowing port (201), a second air blowing port (202) and a third air blowing port (203) arranged in sequence; The air duct comprises an air blowing duct (300) for conveying flowing airflow to a first air blowing port (201) and a third air blowing port (203) respectively, and also comprises a branch air duct (900) for conveying airflow to the second air blowing port (202), wherein the branch air duct (900) has at least two different inlets (905).

2. The blowing device according to claim 1, characterized in that: The first blowing port (201) and / or the third blowing port (203) are arranged linearly.

3. The blowing device according to claim 1 or 2, characterized in that: The second blowing port (202) is arranged in a circular shape, an elliptical shape, an annular shape, or an arc shape.

4. The blowing device according to claim 1, characterized in that: The branch air duct (900) has two inlets (905), and the two inlets (905) are respectively connected to different blowing air ducts (300).

5. The blowing device according to claim 1 or 4, characterized in that: The branch air duct (900) has an outlet (902), and the outlet (902) is connected to the second blowing port (202).

6. The blowing device according to claims 1-2 and 4, characterized in that: The width of the branch air duct (900) gradually narrows from its inlet (905) to its outlet (902).

7. The blowing device according to claim 6, characterized in that: The branch air duct (900) is provided with at least two air guide surfaces (901) for guiding air toward the outlet (902), one end of the air guide surface (901) is adapted to the inlet (905) side, and the other end is adapted to the outlet (902).

8. The blowing device according to any one of claims 1-2, 4-5, and 7, characterized in that: The air duct also includes a first channel (301) configured on the first blowing port (201) and a second channel (302) configured on the third blowing port (203), and at least two different inlets (905) of the branch air duct (900) are respectively connected to the first channel (301) and the second channel (302).

9. The blowing device according to claim 8, characterized in that: It also includes an air collecting plate (600), and the first channel (301) and the second channel (302) are arranged on the air collecting plate (600).

10. The blowing device according to claim 8, characterized in that: It also includes an air door, which is arranged in the first channel (301) and the second channel (302), and has a first position for opening the blowing air duct (300) and closing the branch air duct (900) and a second position for opening the branch air duct (900) and closing the blowing air duct (300).

11. The blowing device according to any one of claims 1-2, 4-5, 7, 9-10, 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.

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