Blowing device

Abstract

The utility model discloses an air blowing device, which relates to the field of household appliances, and is characterized by comprising a shell and an air collecting plate arranged on the shell, the air channel comprises an air blowing channel and a first branch air channel which are arranged independently, the air blowing channel is located on the lower side of the air collecting plate, and the first branch air channel is arranged on the upper side of the air collecting plate. According to the scheme, the branch air ducts are arranged above the air collecting plate, the branch air ducts occupy part of the space above the air collecting plate, the height occupied by the branch air ducts is overlapped with the space reserved above the air collecting plate, and therefore on the premise that the overall height limitation requirement is met, the height of the branch air ducts does not need to be continuously reduced, and the overall height limitation requirement is met. Or the size amplitude of the branch air ducts needing to be reduced is reduced, so that the performance of the branch air ducts cannot be influenced by the limitation of size change, or the influence caused by the limitation of the size is reduced.

Description

Technical Field

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

[0002] The box of the existing wind-heating heater includes a shell, an air collecting plate and a mask. The air collecting plate is arranged on the opening side of the shell, and the mask is arranged on the shell and outside the air collecting plate. An air source and an air duct are arranged inside the shell, and a heating device is arranged in the air duct to output heated hot air to the air outlet on the mask.

[0003] The air duct generally includes layered blowing duct and ventilation duct. The wind source is set as a double-layer bidirectional wind wheel, which uses forward and reverse rotation to provide airflow. When the number of blowing ports increases, the design space of the internal air duct is limited under the same shell volume. Therefore, in order to meet the increase in the number and ensure the air volume of the air duct, it is necessary to increase the number of air ducts, which leads to an increase in the required shell thickness. Utility Model Content

[0004] The utility model aims to provide a blowing device, which has the advantages of reasonably designed air duct, ensuring the air outlet performance of the whole machine, effectively reducing the height of the whole machine, and reducing the difficulty of installation.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A blowing device, comprising:

[0007] A shell and a wind collecting plate arranged on the shell;

[0008] An air duct and an air source, wherein the air source is suitable for conveying a flowing airflow into the air duct;

[0009] The air duct includes a blowing air duct and a first branch air duct which are independently arranged from each other. The blowing air duct is located at the lower side of the air collecting plate, and the first branch air duct is arranged at the upper side of the air collecting plate.

[0010] Further configuration: also includes: a mask, the mask is located on the outside of the air collecting plate relative to the shell, and the first branch air duct is located between the mask and the air collecting plate.

[0011] Further configuration: an air inlet is provided on the air collecting plate, and a gap is set between the first branch air duct and the air inlet.

[0012] It is further configured that the air duct also includes a second branch air duct, the second branch air duct is arranged on the air collecting plate, and the blowing air duct is connected to the second branch air duct.

[0013] Further configuration: the second branch air duct is located on the upper side of the air collecting plate.

[0014] It is further configured that: the inlet of the first branch air duct is arranged on the second branch air duct.

[0015] Further configuration: also includes a damper, having a first position for opening the outlet of the second branch air duct and closing the inlet of the first branch air duct, and a second position for opening the inlet of the first branch air duct and closing the outlet of the second branch air duct.

[0016] It is further configured that: the mask is provided with at least a first air outlet and a second air outlet arranged in sequence; the first branch air duct is connected to the first air outlet, and the second branch air duct is connected to the second air outlet.

[0017] It is further configured that: one of the first blowing outlet and the second blowing outlet is linearly configured; the other blowing outlet is circularly configured, elliptically configured, annularly configured, or arc-shaped.

[0018] 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.

[0019] In summary, the utility model has the following beneficial effects:

[0020] First, the wind collecting plate is one of the components of the bathroom heater, which has the function of collecting wind. Specifically, when the bathroom heater is working, the suction force generated inside causes the airflow to pass through the wind collecting plate and enter the fan. The wind collecting plate plays a role in expanding the suction range of the fan, reducing wind resistance, and better exerting the performance of the fan. Usually, the wind collecting plate is set at the opening of the bathroom heater shell, and the wind collecting plate sinks inward relative to the shell opening, so that the surface of the wind collecting plate facing the mask part has a certain height difference with the plane where the opening of the bathroom heater shell is located, so as to better play the role of the wind collecting plate. However, the bathroom heater needs to be installed on the ceiling, and the installation space on the ceiling is limited. Specifically, the height of the bathroom heater cannot exceed a certain size. In this solution, due to the additional addition of branch air ducts, the branch air ducts need to occupy a certain installation space. Because the branch air ducts are stacked in the height direction and are limited by the overall height of the bathroom heater, the size of the branch air ducts needs to be reduced. The reduction in the size of the air duct in the height direction will affect the performance of the air duct. In this solution, the branch air duct is arranged above the air collecting plate, and the branch air duct occupies part of the space above the air collecting plate, so that the height occupied by the branch air duct overlaps with the space reserved above the air collecting plate. Therefore, under the premise of meeting the overall height restriction requirement, the height of the branch air duct does not need to be further reduced, or the size of the branch air duct that needs to be reduced becomes smaller, so that the performance of the branch air duct will not be affected by the size change restriction, or the impact caused by the size restriction is reduced.

[0021] Second, by selecting the first air outlet and the second air outlet, a variety of blowing modes can be freely switched, effectively improving the user experience. 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 Schematic diagram of the structure of the first branch air duct;

[0025] Figure 4 It is a structural schematic diagram of the air collecting plate and the second branch air duct;

[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 structural schematic diagram of the side blowing of the blowing device;

[0029] Figure 8 It is a structural schematic diagram of the intermediate blowing of the blowing device.

[0030] In the figure, 100, housing; 101, ventilation port; 102, air inlet gap;

[0031] 200, face mask; 201, first air outlet; 202, second air outlet;

[0032] 210. Heating device;

[0033] 300, blowing air duct; 301, second branch air duct;

[0034] 400, wind source; 401, first blade; 402, second blade; 403, power source;

[0035] 500, ventilation duct;

[0036] 600, air collecting plate; 601, air inlet; 602, air outlet;

[0037] 710, air door;

[0038] 810, motor;

[0039] 900, first branch air duct; 901, inlet; 902, outlet. DETAILED DESCRIPTION

[0040] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0041] 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.

[0042] A blowing device, such as Figure 1 As shown, it includes a housing 100 and an air collecting plate 600. In this embodiment, the housing 100 has a receiving cavity inside and an opening on one side. The shape of the housing 100 is preferably a rectangular parallelepiped. As an alternative embodiment, the shape of the housing 100 can also be a cube, a cylinder, or a polygon. The air collecting plate 600 is arranged at the opening of the housing 100 to close the receiving cavity of the housing 100. The blowing device also includes an air duct and an air source 400. The air source 400 is suitable for conveying a flowing airflow into the air duct.

[0043] like Figure 1 and Figure 7 As shown, in this embodiment, the air duct includes a blowing air duct 300 and a first branch air duct 900 which are independently arranged, the blowing air duct 300 is located at the lower side of the air collecting plate 600, and the first branch air duct 900 is arranged at the upper side of the air collecting plate 600. The first branch air duct 900 is connected to the blowing air duct 300. As an alternative embodiment, the first branch air duct 900 is connected to the wind source 400.

[0044] There is no specific limitation on the structure of the blowing duct 300. The cross section of the blowing duct 300 is rectangular. The width direction of the blowing duct 300 is arranged along the width direction of the housing 100 to ensure the air outlet performance. The width of the blowing duct 300 is close to the width of the housing 100. As an alternative embodiment, the cross section of the blowing duct 300 along the air outlet direction is square or circular.

[0045] like Figure 1 and Figure 3 As shown, in this embodiment, one end of the first branch air duct 900 has an inlet 901 connected to the blowing air duct 300, and the other end has an outlet 902. The airflow generated by the wind source 400 can be blown out directly from the blowing air duct 300, or can enter the first branch air duct 900 through the blowing air duct 300 and blown out.

[0046] like Figure 1As shown, the blowing device also includes a mask 200, which is arranged on the housing 100 and is located on the outer side of the air collecting plate 600 relative to the housing 100. The first branch air duct 900 is located between the mask 200 and the air collecting plate 600. The air duct also includes a second branch air duct 301, which is arranged on the upper side of the air collecting plate 600, and the blowing air duct 300 is connected to the second branch air duct 301. The second branch air duct 301 is located between the mask 200 and the air collecting plate 600. The airflow generated by the wind source 400 can be blown out directly from the blowing air duct 300, and needs to be blown out after passing through the second branch air duct 301. In this embodiment, the blowing air duct 300 is connected to the second branch air duct 301, and the inlet 901 of the first branch air duct 900 is connected to the second branch air duct 301, and the airflow entering the first branch air duct 900 needs to pass through the second branch air duct 301 first. As an alternative implementation, the inlet 901 of the first branch air duct 900 is connected to the air source 400 .

[0047] The mask 200 is provided with a first blowing port 201 and a second blowing port 202 arranged in sequence along the length direction of the mask 200. To arrange in sequence means to arrange in 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, it can be arranged along the boundary shape of the mask, for example, along the length direction of the mask 200. As an alternative embodiment, the arrangement in sequence can also be arranged along the width direction of the mask 200. As an alternative embodiment, the arrangement in sequence can also be arranged along the diagonal direction of the mask 200.

[0048] One of the first blowing port 201 and the second blowing port 202 is arranged linearly; the other blowing port is arranged circularly, elliptically, annularly or arcuately. Figure 1 As shown, there is no specific limitation on the shape, size and number of the first blowing outlet 201 and the second blowing outlet 202. In this embodiment, the first blowing outlet 201 is linearly arranged. As an alternative embodiment, the first blowing outlet 201 is circularly arranged, annularly arranged or arc-shaped. As an alternative embodiment, the second blowing outlet 202 is linearly arranged. As an alternative embodiment, the second blowing outlet 202 is circularly arranged, annularly arranged or arc-shaped. In this embodiment, the circle and the ellipse are usually single closed areas. 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 open ends.

[0049] The first blowing port 201 on the mask 200 is connected to the second branch air duct 301, and the shape of the first blowing port 201 is adapted to the shape of the second branch air duct 301. The adaptation here means to be connected and adapted to each other. The shape of the first blowing port 201 and the shape of the cross section of the second branch air duct 301 can be the same or different.

[0050] The second blowing port 202 on the mask 200 is connected to the first branch air duct 900, and the shape of the outlet 902 of the first branch air duct is adapted to the shape of the second blowing port 202, and the outlet 902 is preferably circular. As an alternative embodiment, the shape of the outlet 902 can be square or polygonal. The cross section of the first branch air duct 900 is a rectangle, and the width direction of the rectangle is arranged along the width direction of the box body, and the width of the first branch air duct 900 is adapted to the width of the second branch air duct 301.

[0051] like Figure 2 and Figure 3 As shown, in this embodiment, an air inlet 601 and an air outlet 602 connected to the first air outlet 201 are provided on the air collecting plate 600 , and the air collecting plate 600 and the mask 200 are spaced apart to form an air inlet gap 102 , which is connected to the air inlet 601 .

[0052] On the basis of the above implementation manner, as a further limited implementation manner, Figure 1 , Figure 2 and Figure 3 As shown, in order to reduce the volume of the box as much as possible, preferably, the blowing duct 300 is parallel to the bottom wall of the shell 100, and the second branch duct 301 is parallel to the side wall of the shell 100. The first branch duct 900 is layered with the blowing duct 300 relative to the bottom wall of the shell 100, and the first branch duct 900 is arranged on the upper side of the air collecting plate 600. A gap is set between the bottom wall of the first branch duct 900 and the air collecting plate 600, and the air inlet 601 and the air inlet gap 102 are interconnected. Here, the formation of the gap is that the bottom of the first branch duct 900 is an arched arch, and the lower space of the arch is interconnected with the air inlet 601. As an alternative embodiment, an opening is set on the first branch duct 900, and the opening is interconnected with the air inlet 601.

[0053] 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 arranged on the first branch air duct 301.

[0054] like Figure 1 and7 As shown, the air door 710 is also included, which has a first position of opening the outlet of the second branch air duct 301 and closing the inlet of the first branch air duct 900, and a second position of opening the inlet of the first branch air duct 900 and closing the outlet of the second branch air duct 301. The specific structure of the air door is not limited. In this embodiment, the heating device 210 of the blowing device is arranged upstream of the air door. The air door is arranged in the second branch air duct 301. The air door includes a swing blade rotatably connected to the second branch air duct 301 and a motor 810, and the swing blade is driven to swing by the rotation of the motor, thereby performing the opening and closing actions.

[0055] By controlling the air door, 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 and the second blowing port 202. The damper 710 is in a position to open the outlet of the second branch air duct 301 and is relative to the inlet of the first branch air duct 900. The second branch air duct 301 on the left is in an open state, and the first blowing port 201 is blowing. Figure 8 As shown, the damper 710 is in a position to open the entrance of the first branch air duct 900 and close the outlet of the second branch air duct 301, the second branch air duct 301 is in a closed state, and the airflow is blown out from 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 embodiment, 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.

[0056] 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.

[0057] 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.

[0058] 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, comprising: A housing (100) and an air collecting plate (600) arranged on the housing (100); An air duct and an air source (400), wherein the air source is suitable for conveying a flowing airflow into the air duct; It is characterized in that the air duct includes a blowing duct (300) and a first branch air duct (900) which are independently arranged, the blowing duct (300) is located at the lower side of the air collecting plate (600), and the first branch air duct (900) is arranged at the upper side of the air collecting plate (600).

2. The blowing device according to claim 1, characterized in that: It also includes: a mask (200), wherein the mask (200) is located on the outside of the air collecting plate (600) relative to the shell (100), and the first branch air duct (900) is located between the mask (200) and the air collecting plate (600).

3. The blowing device according to any one of claims 1-2, characterized in that: The air collecting plate (600) is provided with an air inlet (601), and a gap is provided between the first branch air duct (900) and the air inlet (601).

4. The blowing device according to claim 2, characterized in that: The air duct further comprises a second branch air duct (301), the second branch air duct (301) being arranged on the air collecting plate (600), and the blowing air duct (300) and the second branch air duct (301) being connected.

5. The blowing device according to claim 4, characterized in that: The second branch air duct (301) is located on the upper side of the air collecting plate (600).

6. The blowing device according to claim 4, characterized in that: The inlet of the first branch air duct (900) is arranged on the second branch air duct (301).

7. The blowing device according to claim 6, characterized in that: It also includes a damper (710) having a first position for opening the outlet of the second branch air duct (301) and closing the inlet of the first branch air duct (900), and a second position for opening the inlet of the first branch air duct (900) and closing the outlet of the second branch air duct (301).

8. The blowing device according to any one of claims 4 to 7, characterized in that: The mask (200) is provided with at least a first air outlet (201) and a second air outlet (202) which are arranged in sequence; the first branch air duct (900) is connected to the second air outlet (202), and the second branch air duct (301) is connected to the first air outlet (201).

9. The blowing device according to claim 8, characterized in that: One of the first air blowing port (201) and the second air blowing port (202) is arranged linearly; the other air blowing port is arranged circularly, elliptically, annularly, or arcuately.

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