Double-air-duct fan

Abstract

An air duct structure is mainly improved, the double-air-duct structure comprising a first air outlet mesh enclosure and a second air outlet mesh enclosure is specifically adopted, the first air outlet mesh enclosure is arranged in a fan head with the air outlet direction as the standard and arranged behind fan blades in a butt joint mode, and meanwhile the rotation angle of the first air outlet mesh enclosure is set to be the same as that of the fan blades. Secondly, a second air outlet mesh enclosure is arranged, the second air outlet mesh enclosure comprises a first air guide radian, the air outlet direction serves as the standard, the second air outlet mesh enclosure is installed behind the first air outlet mesh enclosure, meanwhile, the first air guide radian and the radian of the first air outlet mesh enclosure are arranged in the opposite directions, and then in order to improve the mute effect, the second air outlet mesh enclosure is installed behind the first air outlet mesh enclosure; an air outlet channel is arranged in the central area of the first air outlet mesh enclosure and the central area of the second air outlet mesh enclosure, and in order to further improve the air outlet effect, a second air guide radian is arranged on the side face of the second air outlet mesh enclosure, and the air outlet device has the advantages of being diversified in air outlet path, large in air outlet amount and coverage range and low in air outlet noise.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a double-duct fan. Background Art

[0002] Electric fan, also known as fan or blower, is a household appliance that uses an electric motor to drive the blades to rotate to accelerate the circulation of air. It is mainly used for cooling down and circulating air.

[0003] At present, the fans on the market, that is, the existing technology, are mainly single-duct fans. Structurally, the air volume is increased by simply accumulating the number of ducts. The air outlet path is too single, the air volume and coverage are small, and the air outlet noise is large. Therefore, improvements are needed. Utility Model Content

[0004] The main purpose of the utility model is to provide a dual-duct fan, aiming to solve the technical problems of the prior art fans having a single air outlet path, small air outlet volume and coverage, and large air outlet noise.

[0005] To achieve the above object, the utility model provides a dual-duct fan, comprising:

[0006] Fan head;

[0007] The fan blades are arranged in the fan head, are started by the motor and are used to rotate to generate wind;

[0008] A first air outlet mesh cover, based on the air outlet direction, is arranged in the fan head and is butt-jointedly arranged behind the fan blades, and the rotation angle of the first air outlet mesh cover is the same as that of the fan blades;

[0009] The second air outlet mesh cover includes a first air guide curvature. Based on the air outlet direction, the second air outlet mesh cover is installed behind the first air outlet mesh cover. Meanwhile, the first air guide curvature is arranged in the opposite direction to the curvature of the first air outlet mesh cover.

[0010] Furthermore, the central areas of the first air outlet mesh cover and the second air outlet mesh cover are provided with air outlet channels for improving the mute effect.

[0011] Furthermore, the second air outlet grille includes a second air guiding arc arranged on the side and used for improving the air outlet effect.

[0012] Furthermore, the fan head includes an air inlet grille arranged at the rear end.

[0013] Furthermore, the fan head comprises a front shell arranged at the front end, the middle part of the front shell is hollow, and a digital tube circuit board and a display lens for digital display function are correspondingly arranged at the hollow position of the middle part.

[0014] Furthermore, a supporting component for supporting the fan head is arranged on a side of the fan head.

[0015] Furthermore, the supporting component includes a left bracket and a right bracket, and the left bracket and the right bracket are respectively hinged to the sides of the fan head.

[0016] Furthermore, the supporting component also includes a base for further supporting the left bracket and the right bracket.

[0017] Furthermore, a switch for adjusting the air volume is provided on the surface of the base.

[0018] Furthermore, the switch is a knob, and the wind speed can be adjusted steplessly by rotating the knob.

[0019] The technical solution of the present utility model mainly improves the air duct structure, specifically adopts a double air duct structure including a first air outlet mesh cover and a second air outlet mesh cover, the first air outlet mesh cover is based on the direction of air outlet, is arranged in the fan head and is connected to and arranged behind the fan blades, and the rotation angle setting of the first air outlet mesh cover is the same as that of the fan blades, secondly, a second air outlet mesh cover is provided, the second air outlet mesh cover includes a first air guide arc, based on the direction of air outlet, the second air outlet mesh cover is installed behind the first air outlet mesh cover, and at the same time, the first air guide arc is arranged in the opposite direction to the arc of the first air outlet mesh cover, and then, in order to improve the silent effect, the central area of ​​the first air outlet mesh cover and the second air outlet mesh cover is provided with an air outlet channel, and in order to further improve the air outlet effect, a second air guide arc is provided on the side of the second air outlet mesh cover, finally, it also includes a digital display function, a stepless air volume adjustment function and an air outlet angle adjustment function, the present utility model has the beneficial technical effects of diverse air outlet paths, large air outlet volume and coverage range, and small air outlet noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the fan blades, the first air outlet mesh cover and the second air outlet mesh cover;

[0023] Figure 4 It is a schematic diagram of the planar structure of the fan blades, the first air outlet mesh cover and the second air outlet mesh cover.

[0024] The above drawings include the following reference numerals:

[0025] 1. Fan head; 11. Front shell; 12. Inlet air grille; 2. Fan blade; 21. Motor; 3. First outlet air grille; 4. Second outlet air grille; 41. First air guiding arc; 42. Second air guiding arc; 5. Air outlet channel; 6. Digital tube circuit board; 7. Display lens; 8. Support component; 81. Left bracket; 82. Right bracket; 83. Base; 9. Switch. Detailed implementation mode

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0029] The present invention provides a double-duct fan.

[0030] In the embodiments of the present invention, as Figures 1 to 4As shown, the dual-duct fan includes a fan head 1 and blades 2 arranged in the fan head 1, the blades 2 are started by a motor 21 and are used to rotate to create wind, and a first air outlet mesh cover 3 is arranged in the fan head 1 of the dual-duct fan. Specifically, based on the direction of air outlet, the first air outlet mesh cover 3 is arranged in the fan head 1 and docked behind the blades 2. In addition, the rotation angle of the first air outlet mesh cover 3 is set to be the same as that of the blades 2. A second air outlet mesh cover 4 is also provided, and the second air outlet mesh cover 4 includes a first air guide curvature 41. Based on the direction of air outlet, the second air outlet mesh cover 4 is installed behind the first air outlet mesh cover 3. At the same time, the first air guide curvature 41 is set in the opposite direction to the curvature of the first air outlet mesh cover 3.

[0031] It needs to be explained that the curvature of the first air outlet mesh cover 3 is preferably set to a larger slope and needs to be the same as the rotation angle of the fan blade 2, so as to increase the air output. In addition, the curvature of the second air outlet mesh cover 4 is set opposite to that of the first air outlet mesh cover 3, so that the wind is blown out specifically from the vertical direction, which is used to further increase the air output.

[0032] In this embodiment, the central area of ​​the first air outlet mesh cover 3 and the second air outlet mesh cover 4 is provided with an air outlet channel 5 for improving the quiet effect, and air is discharged through the opened air outlet channel 5 with a stable wind speed.

[0033] In this embodiment, the second air outlet mesh cover 4 includes a second air guide curvature 42 arranged on the side and used to improve the air outlet effect. The second air guide curvature 42 is specifically arranged around the periphery of the fan head 1. The number of the second air guide curvature 42 is not limited, and at least one is provided. In a more preferred embodiment, the second air guide curvature 42 is arranged around the side of the fan head 1 at intervals.

[0034] In the present embodiment, the fan head 1 includes an air inlet mesh cover 12 arranged at the rear end. It can be understood that the air inlet mesh cover 12 essentially assumes the function of the rear cover of the fan head 1. In some other embodiments, components similar to the air inlet mesh cover 12 and the rear cover can be provided at the same time. As it is slightly redundant, it will not be described in detail as a preferred embodiment of the present utility model.

[0035] In this embodiment, the fan head 1 includes a front shell 11 arranged at the front end, the middle part of the front shell 11 is hollow, and a digital tube circuit board 6 and a display lens 7 for digital display function are correspondingly arranged at the hollow position in the middle. This structure is used to display the information parameters of the utility model. This is part of the prior art and will not be elaborated on.

[0036] In this embodiment, a supporting component 8 for supporting the fan head 1 is disposed on the side of the fan head 1 .

[0037] Specifically, the support member 8 includes a left bracket 81 and a right bracket 82. The left bracket 81 and the right bracket 82 are respectively hinged to the side of the fan head 1. In some other embodiments, the left bracket 81 and the right bracket 82 can have a certain connection relationship to further enhance the stability of the support.

[0038] Preferably, the support member 8 further includes a base 83 for further supporting the left bracket 81 and the right bracket 82. The base 83 is used to enhance the bottom support force of the left bracket 81 and the right bracket 82, thereby making the daily use of the present invention more stable.

[0039] Specifically, a switch 9 for adjusting the air volume is provided on the surface of the base 83.

[0040] Further, in the preferred embodiment, the switch 9 is a knob, and the wind speed is steplessly adjusted by rotating the knob. Preferably, a guiding structure for prompting air volume switching is provided on the side of the knob. In addition, in some other embodiments, the switch 9 of the present invention can adopt a form of stepwise adjustment, which is part of the prior art and will not be elaborated here.

[0041] The following content is the working principle description of the present invention:

[0042] The design point of the present invention mainly lies in the double air duct structure. Specifically, a double air duct structure including a first air outlet grille 3 and a second air outlet grille 4 is adopted. The slope of the first air outlet grille 3 is large and the same as the rotation angle of the fan blade 2, increasing the air volume. The second air outlet grille 4 includes a first air guiding arc 41 and a second air guiding arc 42. The specific definition of the arc is as follows: the first air guiding arc 41 of the second air outlet grille 4 is opposite to the arc of the first air outlet grille 3, so that the air volume blows vertically, increasing the air volume. At the same time, there is a second air guiding arc 42 on the side of the second air outlet grille 4, forming an air outlet channel 5 with the display part in the center. The second air guiding arc and the air outlet channel 5 have better air outlet effect and are quieter.

[0043] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural transformations made under the inventive concept of the present invention by using the description and drawings of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A dual-duct fan, characterized in that, include: Fan head; The fan blades are arranged in the fan head, are started by the motor and are used to rotate to generate wind; A first air outlet mesh cover, based on the air outlet direction, is arranged in the fan head and is butt-jointedly arranged behind the fan blades, and the rotation angle of the first air outlet mesh cover is the same as that of the fan blades; The second air outlet mesh cover includes a first air guide curvature. Based on the air outlet direction, the second air outlet mesh cover is installed behind the first air outlet mesh cover. Meanwhile, the first air guide curvature is arranged in the opposite direction to the curvature of the first air outlet mesh cover.

2. The dual-duct fan according to claim 1, characterized in that: The central areas of the first air outlet mesh cover and the second air outlet mesh cover are provided with air outlet channels for improving the mute effect.

3. The double-duct fan according to claim 1, characterized in that: The second air outlet grille includes a second air guiding arc arranged on the side and used for improving the air outlet effect.

4. The dual-duct fan according to claim 1, wherein: The fan head includes an air inlet grille arranged at the rear end.

5. The dual-duct fan according to claim 1, characterized in that: The fan head comprises a front shell arranged at the front end, the middle part of the front shell is hollow, and a digital tube circuit board and a display lens for a digital display function are correspondingly arranged at the hollow position of the middle part.

6. The dual-duct fan according to claim 1, wherein: A supporting component for supporting the fan head is arranged on the side of the fan head.

7. The dual-duct fan according to claim 6, characterized in that: The supporting component comprises a left bracket and a right bracket, and the left bracket and the right bracket are respectively hinged on the sides of the fan head.

8. The dual-duct fan according to claim 7, wherein: The supporting component also includes a base for further supporting the left bracket and the right bracket.

9. The double-duct fan according to claim 8, characterized in that: A switch for adjusting the air volume is arranged on the surface of the base.

10. The double-duct fan according to claim 9, characterized in that: The switch is a knob, and the wind speed can be adjusted steplessly by rotating the knob.

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