Bladeless fan

Abstract

The utility model discloses a bladeless fan. The bladeless fan comprises a main body part, a fan assembly and an air guide part, the fan assembly is arranged in the main body part and comprises two first air outlets which are arranged oppositely; the air guide part surrounds the main body part, the air guide part and the main body part are integrally arranged, two air guide cavities are formed in the air guide part, and the two air guide cavities communicate with the corresponding first air outlets correspondingly; the air guide part is provided with a second air outlet communicated with the air guide cavity, the second air outlet is provided with a plurality of cut-off walls arranged at intervals, the cut-off walls extend to the air guide cavity from the second air outlet, and when the air flow flows into the air guide cavity from the first air outlet, the cut-off walls sequentially cut off part of the air flow. According to the utility model, the air guide part surrounds the main body part and is integrated with the main body part, so that the convenience of production and disassembly is improved, the structure at the part is more compact and attractive, and the use experience of a user can be greatly improved; and the upper, middle and lower air outlet volumes of the second air outlet can be uniform through the arranged intercepting wall, so that the air outlet efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bladeless fans, and in particular relates to a bladeless fan. Background Art

[0002] With the development of economy and the progress of society, various electrical appliances have entered people's lives, among which bladeless fans have been widely used as a kind of air supply device. Most of the existing bladeless fans are low suction and upward blowing mode, in which the motor at the bottom of the bladeless fan inhales air from the bottom, generates vertical wind flow through the motor, and transmits it to the air outlet shell above the vertical motor, and then guides the wind flow to the horizontal direction and discharges it from the air outlet shell; the existing bladeless fans have relatively complex structures, which are not easy to disassemble and assemble, and the vertical distance of the wind flow discharged by the motor at the bottom is far, resulting in uneven air volume in the upper, middle and lower parts of the air outlet shell. Summary of the invention

[0003] The purpose of the utility model is to provide a bladeless fan which can solve the above problems.

[0004] To achieve the above-mentioned purpose, the present invention provides a bladeless fan, comprising:

[0005] Main body;

[0006] A fan assembly is disposed inside the main body, and the fan assembly includes two first air outlets disposed back to back; and

[0007] An air guide portion, surrounding the main body and integrally arranged with the main body, the air guide portion is provided with two air guide cavities, and the two air guide cavities are respectively connected to the corresponding first air outlet;

[0008] The air guide portion is provided with a second air outlet connected to the air guide cavity, and the second air outlet is provided with a plurality of interception walls arranged at intervals, the interception walls extend from the second air outlet to the air guide cavity, and when the airflow flows into the air guide cavity from the first air outlet, each of the interception walls intercepts part of the airflow in turn.

[0009] Optionally, the extension length of the intercepting wall decreases successively along the air inlet direction.

[0010] Optionally, the intercepting wall is arranged to be inclined toward the air inlet direction.

[0011] Optionally, the two air guiding cavities are connected at one end away from the first air outlet.

[0012] Optionally, the fan assembly includes:

[0013] Centrifugal wind wheel;

[0014] a volute, fixedly connected to the main body, the centrifugal wind wheel is arranged on the volute, and the volute has a third air outlet; and

[0015] The guide pipe, the first air outlet is a port of the guide pipe, and the third air outlet is connected to the guide pipe from a side wall of the guide pipe.

[0016] Optionally, the inner wall of the guide tube is provided with a diversion wall corresponding to the third air outlet.

[0017] Optionally, it further includes a first driving assembly and a connecting seat;

[0018] The connecting seat is arranged below the main body, and the first driving component is arranged inside the main body and can drive the main body to rotate up and down on the connecting seat.

[0019] Optionally, the connecting seat comprises a supporting arm, two connecting arms are arranged at intervals at the upper end of the supporting arm, an arc-shaped opening corresponding to the connecting arms is vertically opened on the upper edge of the main body, and the connecting arm extends into the interior of the main body along the arc-shaped opening and is rotatably connected to the volute;

[0020] The first driving assembly includes a first motor, which is fixedly connected to the main body and is transmission-connected to the volute through a transmission structure.

[0021] Optionally, the support arm is arranged to be inclined toward the rear end of the main body.

[0022] Optionally, it further includes a second driving assembly and a supporting seat;

[0023] The support seat comprises a connecting rod, a vertical arm is provided at the lower end of the supporting arm, and the vertical arm is rotatably connected to the connecting rod;

[0024] The second driving assembly includes a second motor, which is vertically arranged inside the vertical arm, and a shaft of the second motor is fixedly connected to the connecting rod.

[0025] Compared with the prior art, the beneficial effects of the utility model are: by the way that the air guide part surrounds the main body and is arranged integrally with the main body, the convenience of production and disassembly is improved, and the structure therein can be made more compact and beautiful, which can greatly improve the user experience; by setting the interception wall, the upper, middle and lower air outlets of the second air outlet can be uniform, thereby improving the air outlet efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is an explosion diagram of the utility model.

[0028] Figure 2 It is a top view of the utility model.

[0029] Figure 3 For along Figure 2 Sectional view along line AA.

[0030] Figure 4 For along Figure 2 Sectional view along the midline BB.

[0031] In the figure: a main body 100, an air guide portion 200, an air guide cavity 210, a second air outlet 220, a interception wall 221, a fan assembly 300, a centrifugal wind wheel 310, a vortex casing 320, a third air outlet 321, a guide pipe 330, a first air outlet 331, a diverter wall 332, a first drive assembly 400, a first motor 410, a transmission structure 420, a connecting seat 500, a support arm 510, a connecting arm 511, a vertical arm 520, a second motor 600, a supporting seat 700, a connecting rod 710, and a bottom shell 720. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the embodiments of the present invention, it should be understood that if there are directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, inside, outside, etc., the directions or positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of describing the embodiments of the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0035] In the embodiments of the present invention, unless otherwise clearly specified and limited, if there are terms such as "installed", "connected", "connected", "fixed", etc., they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0036] like Figures 1 to 4 As shown, an embodiment of the utility model provides a bladeless fan, including a main body 100, an air guide portion 200, a fan assembly 300, a first drive assembly 400, a connecting seat 500, a second drive assembly and a support seat 700.

[0037] The air guide portion 200 surrounds the main body 100 and is integrally arranged with the main body 100. Specifically, the shape of the air guide portion 200 is preferably a hollow ellipse. The front end of the main body 100 is a control area, and the rear end of the main body 100 is provided with an air inlet. The air guide portion 200 is arranged close to the front end of the main body 100. Specifically, the lower end of the air guide portion 200 is integrally connected with the lower end of the main body 200, so that the air guide portion 200 forms a gap around the main body 100. More specifically, The main body 100 and the air guide part 200 both include a front cover and a rear cover, wherein the front cover on the main body 100 and the front cover on the air guide part 200 are integrally formed, and the rear cover on the main body 100 and the rear cover on the air guide part 200 are integrally formed, and the front cover and the rear cover of the two are combined to form the main body 100 and the air guide part 200; this structural method is conducive to production and convenient for disassembly and assembly, and can make the structure of the main body 100 and the air guide part 200 more compact and beautiful, which can greatly improve the user experience.

[0038] Furthermore, the fan assembly 300 is arranged inside the main body 100. Specifically, the main body 100 has a accommodating cavity, and the fan assembly 300 is installed in the accommodating cavity. More specifically, the fan assembly 300 includes two first air outlets 331 arranged back to back. Further, two air guide cavities 210 are provided on the air guide portion 200, and the two air guide cavities 210 are respectively connected to the corresponding first air outlet 331. Preferably, the two air guide cavities 210 are connected at one end away from the first air outlet 310, so that negative pressure is formed at the tail end of the two air guide cavities 210 to ensure the air outlet volume and air outlet speed at the tail end.

[0039] Furthermore, the air guide portion 200 is provided with a second air outlet 220 connected to the air guide cavity 210, and the second air outlet 220 is provided with a plurality of intercepting walls 221 arranged at intervals, and the intercepting walls 221 extend from the second air outlet 220 to the air guide cavity 210, dividing the second air outlet 220 and the air guide cavity 210 into multiple sections. It should be understood that the size of the intercepting walls 221 is adapted to the air guide cavity 210, and when the airflow flows into the air guide cavity 210 from the first air outlet 310, each of the intercepting walls 221 intercepts part of the airflow in turn, so that the upper, middle and lower air outlets of the second air outlet 220 can be uniform; when the second air outlet 220 discharges air to the outside, the gap formed by the air guide portion 200 around the main body 100 can also form a negative pressure to increase the wind speed.

[0040] In one embodiment, in order to enable each of the intercepting walls 221 to intercept part of the wind flow, the extension length of the intercepting wall 221 decreases successively along the wind inlet direction. Specifically, the extension length of the intercepting wall 221 does not exceed half of the width of the air guide cavity 210. Furthermore, the difference in the extension length of the intercepting wall 221 is irregular, and the extension length of the intercepting wall 221 located upstream is greater than that of the intercepting wall 221 located downstream. It should be noted that since the wind flow discharged to the tail end of the air guide cavity 200 becomes smaller, for this reason, the extension lengths of the intercepting walls 221 at the tail end are preferably the same to ensure the air output.

[0041] In one embodiment, the intercepting wall 221 is tilted toward the air inlet direction to correct the wind direction so that the wind can flow out vertically from the second air outlet 220 and can be discharged more smoothly from the second air outlet 220, thereby reducing noise.

[0042] In one embodiment, the fan assembly 300 includes a centrifugal wind wheel 310, a vortex shell 320 and a guide tube 330. The centrifugal wind wheel 310 has the advantages of gathering wind and high wind pressure, and can increase the air output; the vortex shell 320 is fixedly connected to the main body 100, and the centrifugal wind wheel 310 is arranged on the vortex shell 320. The vortex shell 320 has a third air outlet 321; the first air outlet 331 is a port of the guide tube 330, and the third air outlet 321 is connected to the guide tube 330 from the side wall of the guide tube 330. 0, that is, the centrifugal wind wheel 310 drives the surrounding air to form a wind flow, and the wind flow is discharged to the guide pipe 330 through the third air outlet 321, and two wind flows are formed and discharged from the port of the guide pipe 330 to the air guide cavity 210 respectively; specifically, the guide pipe 330 is horizontally arranged at the third air outlet 321, that is, the air outlet direction of the guide pipe 330 is perpendicular to the air outlet direction of the third air outlet 321; more specifically, the guide pipe 330 and the volute 320 are integrally formed to ensure the stability of the structure.

[0043] In one embodiment, the inner wall of the guide tube 330 is provided with a diverter wall 332 corresponding to the third air outlet 321, and the diverter wall 332 is conical. The airflow discharged from the third air outlet 321 is evenly diverted to the two first air outlets 331 through the diverter wall 332, thereby ensuring that the air volume on the two air guide cavities 210 is the same, and the diverter wall 332 makes the airflow smoother and can reduce noise.

[0044] In one embodiment, the connecting seat 500 is disposed below the main body 100, and the first driving component 400 is disposed inside the main body 100, that is, on the accommodating cavity, and can drive the main body 100 to rotate up and down on the connecting seat 500, that is, to achieve up and down shaking of the head to adapt to different usage scenarios.

[0045] In some specific embodiments, in order to enable the first driving component 400 to drive the main body 100 to rotate up and down on the connecting seat 500, specifically, the connecting seat 500 includes a support arm 510, wherein two connecting arms 511 are spaced apart at the upper end of the support arm 510, and an arc-shaped opening 110 corresponding to the connecting arm 511 is vertically opened on the main body 100, specifically, the two arc-shaped openings 110 are located on both sides of the air inlet opened at the rear end of the main body 100; further, the connecting arm 511 extends into the interior of the main body 100 along the arc-shaped opening 110 and is rotatably connected to the volute 320; further, the first driving component 400 includes a first motor 410, and the first motor 410 is fixedly connected to the main body 100, and is transmission-connected to the volute 320 through a transmission structure 420. Specifically, a rotating shaft is fixed on the volute 320, the connecting arm 511 is rotatably connected to the rotating shaft, and the transmission structure 420 includes a driving gear and a driven gear, the driving gear is installed on the shaft of the first motor 410, and the driven gear is installed on the rotating shaft. The driving gear and the driven gear are meshingly connected, so that the first motor 410 can drive the volute 320 to drive the main body 100 and the air guide part 200 to shake up and down.

[0046] In one embodiment, the support arm 510 is tilted toward the rear end of the main body 100 to avoid the main body 100 and the air guide 200 , and has better stability and a more compact and beautiful structure.

[0047] In one embodiment, the support seat 700 includes a connecting rod 710, and a vertical arm 520 is provided at the lower end of the support arm 510, and the vertical arm 520 is rotatably connected to the connecting rod 710 through a bearing; further, the second driving assembly includes a second motor 600, and the second motor 600 is vertically arranged inside the vertical arm 520, and the shaft of the second motor 600 is fixedly connected to the connecting rod 710, that is, the second motor 600 can drive the connecting seat 500 to rotate on the connecting rod 710, thereby driving the main body 100 and the air guide part 200 to shake left and right to adapt to different usage scenarios.

[0048] The support base 700 further includes a bottom shell 720, and the bottom shell 720 is fixed to the lower end of the connecting rod 710 so that the bladeless fan can stand on the ground.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bladeless fan, characterized in that: include: Main body; A fan assembly is arranged inside the main body, and the fan assembly includes two first air outlets arranged back to back; as well as An air guide portion, surrounding the main body and integrally arranged with the main body, the air guide portion is provided with two air guide cavities, and the two air guide cavities are respectively connected to the corresponding first air outlet; The air guide portion is provided with a second air outlet connected to the air guide cavity, and the second air outlet is provided with a plurality of interception walls arranged at intervals, the interception walls extend from the second air outlet to the air guide cavity, and when the airflow flows into the air guide cavity from the first air outlet, each of the interception walls intercepts part of the airflow in turn.

2. A bladeless fan according to claim 1, characterized in that: The extension length of the intercepting wall decreases successively along the air inlet direction.

3. A bladeless fan according to claim 1, characterized in that: The intercepting wall is arranged to be inclined toward the air inlet direction.

4. A bladeless fan according to claim 1, characterized in that: The two air guide cavities are connected at one end away from the first air outlet.

5. A bladeless fan according to any one of claims 1 to 4, characterized in that: The fan assembly comprises: Centrifugal wind wheel; a volute, fixedly connected to the main body, the centrifugal wind wheel is arranged on the volute, and the volute has a third air outlet; and The guide pipe, the first air outlet is a port of the guide pipe, and the third air outlet is connected to the guide pipe from a side wall of the guide pipe.

6. A bladeless fan according to claim 5, characterized in that: The inner wall of the guide tube is provided with a flow dividing wall corresponding to the third air outlet.

7. The bladeless fan according to claim 5, characterized in that: It also includes a first drive assembly and a connecting seat; The connecting seat is arranged below the main body, and the first driving component is arranged inside the main body and can drive the main body to rotate up and down on the connecting seat.

8. The bladeless fan according to claim 7, characterized in that: The connecting seat comprises a supporting arm, two connecting arms are arranged at intervals at the upper end of the supporting arm, an arc-shaped opening corresponding to the connecting arm is vertically opened on the upper edge of the main body, and the connecting arm extends into the interior of the main body along the arc-shaped opening and is rotatably connected with the volute; The first driving assembly includes a first motor, which is fixedly connected to the main body and is transmission-connected to the volute through a transmission structure.

9. A bladeless fan according to claim 8, characterized in that: The support arm is arranged to be inclined toward the rear end of the main body.

10. The bladeless fan according to claim 8, characterized in that: Also includes a second drive assembly and a support seat; The support seat comprises a connecting rod, a vertical arm is provided at the lower end of the supporting arm, and the vertical arm is rotatably connected to the connecting rod; The second driving assembly includes a second motor, which is vertically arranged inside the vertical arm, and a shaft of the second motor is fixedly connected to the connecting rod.

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