Tower fan

Abstract

The utility model relates to the technical field of household appliances, in particular to a tower fan which comprises a shell and a wind wheel assembly, the shell is provided with a first air inlet face, a second air inlet face and an air outlet face, and the first air inlet face and the second air inlet face are arranged adjacently. The air outlet surface is arranged corresponding to the first air inlet surface or the second air inlet surface, the first air inlet surface and the second air inlet surface are both provided with air inlet grilles, the air outlet surface is provided with air outlet grilles, and the air outlet grilles are located on one side of the air outlet surface and staggered from the air inlet grilles; the wind wheel assembly is arranged in the shell, the wind wheel assembly and the inner wall of the shell are arranged in a spaced mode to form a wind passing channel, and the two air inlet grilles, the wind passing channel and the air outlet grilles jointly form an air channel allowing air to flow. The utility model aims to provide a tower fan and aims to improve the noise reduction performance of the tower fan.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of home appliances, particularly relates to a tower fan. BACKGROUND

[0002] As a kind of household appliance, tower fan is small in size, space-saving, and air supply soft, so it is very popular with people.Tower fan generally includes a shell body and is arranged on the shell body motor and cross-flow fan wheel, the rotating output shaft of motor is connected cross-flow fan wheel, simultaneously, air inlet grille and air outlet grille are also provided on shell body.Tower fan is inhaled continuously by cross-flow fan wheel rotation from air inlet grille, and then air flow is blown out from air outlet grille by the air guiding effect of shell body.

[0003] In related technology, current tower fan is basically one-way air inlet and one-way air outlet, simultaneously, air outlet is directly opposite air inlet, and the air duct formed causes airflow not to flow smoothly, which is the main reason for noise of tower fan. INVENTION CONTENTS

[0004] The main purpose of the utility model is to provide a kind of tower fan, to improve the noise reduction performance of tower fan.

[0005] To achieve the above-mentioned purpose, the tower fan includes:

[0006] Shell, the shell is provided with first air inlet face, second air inlet face and one air outlet face, the first air inlet face and the second air inlet face are adjacent, the air outlet face is set corresponding to the first air inlet face or the second air inlet face, the first air inlet face and the second air inlet face are provided with air inlet grille, and the air outlet face is provided with air outlet grille, wherein the air outlet grille is located on one side of the air outlet face and is set staggered with the air inlet grille;And

[0007] Fan wheel assembly, the fan wheel assembly is arranged in the shell and is spaced apart from the inner wall of the shell to form an air passage, two air inlet grilles, air passage and air outlet grille form an air duct for air flow.

[0008] In an embodiment of the utility model, the air inlet grille area of the second air inlet face is greater than the air inlet grille area of the first air inlet face, the air outlet face is set corresponding to the first air inlet face, and the air outlet grille is located on the side of the air outlet face away from the second air inlet face.

[0009] In an embodiment of the utility model, the air outlet grille area of the air outlet face is less than the air inlet grille area of the first air inlet face and the air inlet grille area of the second air inlet face.

[0010] In an embodiment of the utility model, the tower fan further includes a first air guide arc plate and a second air guide arc plate, the first air guide arc plate is connected to the air outlet grille and extends towards the first air inlet face, and the second air guide arc plate is connected to the air outlet grille and extends towards the second air inlet face.

[0011] In an embodiment of the utility model, the arc length of the first air guide arc plate is greater than the diameter of the wind wheel assembly, and the arc length of the second air guide arc plate is less than the diameter of the wind wheel assembly.

[0012] In an embodiment of the utility model, the first air guide arc plate is connected to one end of the air outlet grille away from the second air inlet face, and the second air guide arc plate is connected to one end of the air outlet grille close to the second air inlet face.

[0013] In an embodiment of the utility model, the first air guide arc plate includes a first arc segment and a second arc segment, the first arc segment is connected to the air outlet grille, and the second arc segment is rotatably connected to one side of the first arc segment away from the air outlet grille.

[0014] In an embodiment of the utility model, the tower fan has a high pressure state, in the high pressure state, a free end of the second arc segment and the center of the wind wheel assembly form a first boundary, the end of the second air guide arc plate away from the air outlet grille and the center of the wind wheel assembly form a second boundary, and the included angle between the first boundary and the second boundary is 30-60 degrees.

[0015] In an embodiment of the utility model, the tower fan further includes a driving motor, and the output shaft of the driving motor is connected to the second arc segment.

[0016] In an embodiment of the utility model, the wind wheel assembly includes ten wind wheels, and the ten wind wheels are sequentially stacked along the height direction of the shell.

[0017] In the technical scheme of the utility model, the shell has two air inlet faces and one air inlet face, the wind wheel assembly is arranged in the shell, when the wind wheel assembly works, air can enter from two different directions, which helps to disperse airflow, reduce the air flow pressure of a single air inlet face, and thus reduce noise; meanwhile, the staggered design of the air outlet grille relative to the air inlet grille helps to break the airflow mode of direct blowing and reduce the noise generated by direct airflow impact. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are only some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0019] Figure 1 The structural schematic diagram of the tower fan provided by the present application is shown in the figure.

[0020] Figure 2 The airflow direction schematic diagram of the tower fan provided by the present application is shown in the figure. Figure 1 The sectional view along the line A-A in the figure.

[0021] Figure 3 The airflow direction schematic diagram of the tower fan provided by the present application is shown in the figure.

[0022] Figure 4 The structural schematic diagram of the first arc segment in the open state provided by the present application is shown in the figure.

[0023] Explanation of reference numerals:

[0024] 10, shell; 10a, first air inlet surface; 10b, second air inlet surface; 10c, air outlet surface; 101, air inlet grille; 102, air outlet grille; 20, fan wheel assembly; 11, first air guide arc plate; 111, first arc segment; 112, second arc segment; 12, second air guide arc plate.

[0025] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0028] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0029] Please refer to Figure 1 And Figure 2 , the tower fan comprises:

[0030] The shell 10 is provided with a first air inlet surface 10a, a second air inlet surface 10b and an air outlet surface 10c, the first air inlet surface 10a and the second air inlet surface 10b are arranged adjacent to each other, the air outlet surface 10c is arranged corresponding to the first air inlet surface 10a or the second air inlet surface 10b, the first air inlet surface 10a and the second air inlet surface 10b are each provided with an air inlet grille 101, and the air outlet surface 10c is provided with an air outlet grille 102, wherein the air outlet grille 102 is located on one side of the air outlet surface 10c and is arranged in a staggered manner with the air inlet grille 101.

[0031] The wind wheel assembly 20 is arranged in the shell 10 and is arranged in a spaced manner with the inner wall of the shell 10 to form an air passing channel, and the two air inlet grilles 101, the air passing channel and the air outlet grille 102 jointly form an air duct for air flow.

[0032] In the technical scheme of the utility model, the shell 10 has two air inlet surfaces and one air inlet surface, the wind wheel assembly 20 is arranged in the shell 10, when the wind wheel assembly 20 works, air can enter from two different directions, which helps to disperse air flow and reduce the air flow pressure of a single air inlet surface, thereby reducing noise; at the same time, the staggered design of the air outlet grille 102 relative to the air inlet grille 101 helps to break the air flow mode of direct blowing and reduce the noise generated by direct air impact.

[0033] The inside of the shell 10 is provided with a motor, a control system, a wind wheel assembly 20 and the like, the control system is electrically connected with the wind wheel assembly 20 so as to realize the adjustment of the wind speed, the shell 10 is provided with a control panel on the air outlet surface 10c, realizing the man-machine interactive operation between the user and the tower fan, meanwhile, the control system has a wireless module, the user can use a mobile phone, a tablet computer and the like to connect the wireless module so as to realize the wireless communication function; the shell 10 has a first air inlet surface 10a and a second air inlet surface 10b, the first air inlet surface 10a and the second air inlet surface 10b are adjacently arranged, as shown in Figure 2 and Figure 3 , the second air inlet surface 10b is located at the left side of the first air inlet surface 10a, the air outlet surface 10c is arranged corresponding to the first air inlet surface 10a or the second air inlet surface 10b, which is not limited herein, so as to form an eccentric air duct, when the wind wheel assembly 20 is in a working state, air can be sucked from the first air inlet surface 10a and the second air inlet surface 10b and discharged from the air outlet surface 10c through the guiding action of the wind wheel assembly 20, wherein, because the air outlet grille 102 of the air outlet surface 10c is located at one side of the air outlet surface 10c and is arranged in a staggered manner with the air inlet grille 101, in this way, the air flow mode of direct blowing is broken, and the noise generated by the direct impact of the air flow is reduced.

[0034] Specifically, please refer to Figure 3 , the area of the air inlet grille 101 of the second air inlet surface 10b is greater than the area of the air inlet grille 101 of the first air inlet surface 10a, the air outlet surface 10c is arranged corresponding to the first air inlet surface 10a, and the air outlet grille 102 is located at the side of the air outlet surface 10c away from the second air inlet surface 10b, because the air outlet surface 10c is arranged corresponding to the first air inlet surface 10a, the second air inlet surface 10b will suck more air, which is helpful to balance the overall air duct design, avoid the generation of vortex in the air duct, ensure the stability of the gas flow, and can correspondingly reduce the working noise of the tower fan.

[0035] In an embodiment, the area of the air outlet grille 102 of the air outlet surface 10c is smaller than the area of the air inlet grille 101 of the first air inlet surface 10a and the area of the air inlet grille 101 of the second air inlet surface 10b, in this way, the area of the air outlet grille 102 is smaller than the area of the air inlet grille 101, under the same air flow, the speed of the air passing through the smaller air outlet grille 102 will increase, so that a higher dynamic pressure is generated at the air outlet surface 10c, thereby improving the wind power of the air outlet surface 10c, while ensuring that there is enough air inlet area to reduce the resistance when the air enters, thereby reducing the noise of the tower fan during operation.

[0036] Further, please refer to Figure 2 and Figure 3, the tower fan further comprises a first air guide arc plate 11 and a second air guide arc plate 12, the first air guide arc plate 11 is connected to the air outlet grille 102 and extends towards the first air inlet face 10a in a curved manner, and the second air guide arc plate 12 is connected to the air outlet grille 102 and extends towards the second air inlet face 10b in a curved manner, specifically, the curved faces of the first air guide arc plate 11 and the second air guide arc plate 12 can be adapted to the arc faces of the wind wheel assembly 20, so as to improve the air flow efficiency of the air duct, reduce the resistance, thereby reducing the noise and improving the energy efficiency of the tower fan, at the same time, the curved extension of the first air guide arc plate 11 and the second air guide arc plate 12 towards the corresponding air inlet face helps to guide the air flow of the air outlet face 10c back to the air inlet face, forming effective air circulation, above, by optimizing the air flow path, the air guide arc plate helps to reduce the noise and vibration generated by the air flow in the air duct, so that the tower fan runs more quietly and stably.

[0037] In an embodiment, the arc length of the first air guide arc plate 11 is greater than the diameter of the wind wheel assembly 20, and the arc length of the second air guide arc plate 12 is less than the diameter of the wind wheel assembly 20, the arc length of the first air guide arc plate 11 is greater than the diameter of the wind wheel assembly 20, which means that the first air guide arc plate 11 can cover a larger area, thereby more effectively guiding and dispersing the air flow out of the wind wheel assembly 20, the arc length of the second air guide arc plate 12 is less than the diameter of the wind wheel assembly 20, which means that the second air guide arc plate 12 can more accurately control the air flow to guide back to the air inlet face to form effective air circulation.

[0038] Further, the first air guide arc plate 11 is connected to one end of the air outlet grille 102 away from the second air inlet face 10b, and the second air guide arc plate 12 is connected to one end of the air outlet grille 102 close to the second air inlet face 10b, wherein the air flow guided out of the first air guide arc plate 11 is roughly divided into a first air flow and a second air flow, the first air flow is directly discharged from the air outlet face 10c, and the second air flow flows towards the second air guide arc plate 12 and forms a stable air flow circulation under the guidance of the second air guide arc plate 12, at the same time, the second air guide arc plate 12 is connected to one end of the air outlet grille 102 close to the second air inlet face 10b, which can avoid blocking the air outlet face 10c, in this way, by connecting the two air guide arc plates at different ends of the air outlet grille 102, the dispersion and concentration of the air flow can be effectively controlled, which helps to reduce the noise generated due to uneven air flow.

[0039] In an embodiment, the first air guide arc plate 11 comprises a first arc segment 111 and a second arc segment 112, the first arc segment 111 is connected to the air outlet grille 102, and the second arc segment 112 is rotatably connected to one side of the first arc segment 111 away from the air outlet grille 102, please refer to Figure 3 and Figure 4, so that by changing the rotation angle of the second arc segment 112, the air duct in the first air guide arc plate 11 can be adjusted to change the air flow rate, for example, when the second arc segment 112 rotates towards the wind wheel assembly 20, the air duct in the first air guide arc plate 11 becomes smaller, and under the condition that the flow rate is unchanged, the wind speed can be improved, and a higher dynamic pressure is generated at the air outlet surface 10c to make the user feel stronger wind force; at the same time, the second arc segment 112 is rotatably arranged to facilitate the user to take out the wind wheel assembly 20 for cleaning.

[0040] Further, please refer to Figure 3 , the tower fan has a high pressure state, in the high pressure state, the free end of the second arc segment 112 and the center of the wind wheel assembly 20 form a first boundary, the second air guide arc plate 12 away from the end of the air outlet grille 102 and the center of the wind wheel assembly 20 form a second boundary, the included angle between the first boundary and the second boundary is 174 degrees, at this time, in the case of ensuring high-speed air outlet, the free end of the second arc segment 112 and the wind wheel assembly 20 are prevented from interfering with each other.

[0041] In an embodiment, the tower fan further comprises a driving motor, the output shaft of the driving motor is connected to the second arc segment 112, the driving motor is a rotary motor, and the user can adjust the angle between the second arc segment 112 and the wind wheel assembly 20 by means of the control panel on the outer shell 10 or the wireless module, so as to adjust the air outlet surface 10c.

[0042] In an embodiment of the present application, the wind wheel assembly 20 comprises ten wind wheels, and the ten wind wheels are sequentially stacked along the height direction of the outer shell 10, thereby increasing the air outlet volume of the tower fan.

[0043] The above is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields within the technical concept of the present application is included in the patent protection scope of the present application.

Claims

1. A tower fan, characterized by, The tower fan comprises: a shell (10) provided with a first air inlet face (10a), a second air inlet face (10b) and an air outlet face (10c), the first air inlet face (10a) and the second air inlet face (10b) are adjacently arranged, the air outlet face (10c) is arranged corresponding to the first air inlet face (10a) or the second air inlet face (10b), the first air inlet face (10a) and the second air inlet face (10b) are each provided with an air inlet grille (101), the air outlet face (10c) is provided with an air outlet grille (102), wherein the air outlet grille (102) is located on one side of the air outlet face (10c) and is arranged staggered to the air inlet grille (101); and a wind wheel assembly (20) arranged in the shell (10) and spaced apart from the inner wall of the shell (10) to form an air passing channel, the two air inlet grilles (101), the air passing channel and the air outlet grille (102) jointly form an air duct for air flow.

2. A tower-fan as claimed in claim 1, characterized in that The area of the air inlet grille (101) of the second air inlet face (10b) is greater than the area of the air inlet grille (101) of the first air inlet face (10a), the air outlet face (10c) is arranged corresponding to the first air inlet face (10a), and the air outlet grille (102) is located on the side of the air outlet face (10c) away from the second air inlet face (10b).

3. The tower-fan of claim 1, wherein The area of the air outlet grille (102) of the air outlet face (10c) is smaller than the area of the air inlet grille (101) of the first air inlet face (10a) and the area of the air inlet grille (101) of the second air inlet face (10b).

4. A tower-fan as claimed in any one of claims 1 to 3, characterized in that The tower fan further comprises a first air guide arc plate (11) and a second air guide arc plate (12), the first air guide arc plate (11) is connected to the air outlet grille (102) and extends curvedly towards the first air inlet face (10a), and the second air guide arc plate (12) is connected to the air outlet grille (102) and extends curvedly towards the second air inlet face (10b).

5. A tower according to claim 4, wherein the tower is a tower fan. The arc length of the first air guide arc plate (11) is greater than the diameter of the wind wheel assembly (20), and the arc length of the second air guide arc plate (12) is smaller than the diameter of the wind wheel assembly (20).

6. A tower-fan as claimed in claim 5, wherein the fan-motor is mounted on the base-plate. The first air guide arc plate (11) is connected to one end of the air outlet grille (102) away from the second air inlet face (10b), and the second air guide arc plate (12) is connected to one end of the air outlet grille (102) close to the second air inlet face (10b).

7. The tower fan as described in claim 6, characterized in that, The first air guide arc plate (11) comprises a first arc segment (111) and a second arc segment (112), the first arc segment (111) is connected to the air outlet grille (102), and the second arc segment (112) is rotationally connected to one side of the first arc segment (111) away from the air outlet grille (102).

8. The tower fan as described in claim 7, characterized in that, The tower fan has a high pressure state, in which a free end of the second arc segment (112) forms a first boundary with a center of the wind wheel assembly (20), and the second guide wind arc plate (12) forms a second boundary with the center of the wind wheel assembly (20) away from an end of the air outlet grille (102), and an included angle between the first boundary and the second boundary is 174 degrees.

9. A tower according to claim 8, wherein the tower is a tower fan. The tower fan further comprises a driving motor, and an output shaft of the driving motor is connected to the second arc segment (112).

10. The tower-fan of claim 1 wherein, The wind wheel assembly (20) comprises ten wind wheels, and the ten wind wheels are sequentially stacked along a height direction of the shell (10).

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