CN215805333U

CN215805333U - a bladeless fan

Info

Publication number: CN215805333U
Application number: CN202122283673.0U
Authority: CN
Inventors: 李树彬; 何见标
Original assignee: Zhongshan Shuangguan Electrical Appliance Products Co ltd
Current assignee: Zhongshan Shuangguan Electrical Appliance Products Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-02-11
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses a bladeless fan, which comprises a base, a front shell and a rear shell located on the base, an air slinging cavity is formed between the front shell and the rear shell, and a space is left between the edge of the front shell and the edge of the rear shell. There is an annular air outlet gap that can discharge air forward, an air inlet is arranged in the middle of the rear shell, and an air slinger that can blow the air in the air slinger cavity out of the annular air outlet gap is arranged in the air slinging cavity, and the air slinging wheel is connected. There are drives that can drive it to turn. When the blowing wheel rotates, the outside air can be sucked into the blowing cavity, and at the same time, the air in the blowing cavity can be blown out from the annular air outlet gap, so as to realize the uniform air discharge forward.

Description

Bladeless fan

Technical Field

The utility model relates to the technical field of electric fans, in particular to a bladeless fan.

Background

The existing fan drives the blades to rotate through the motor, accelerates air pressurization through the blades and then blows air to a user, has the advantage of bringing blowing feeling to the user, but has the following defects: firstly, the rotating blades are very fast and can cause injury when being touched carelessly, so most fans adopt an outer cover to surround the blades to reduce the danger; secondly, the blade can generate larger noise in the rotating process, and interference is brought to a user.

In order to solve the above problems, bladeless fans have been gradually introduced in the market, which generate an air flow through a hidden impeller and then guide the air flow out through two air passages to cool a user. Compared with the traditional fan, the bladeless fan has low noise, and the impeller is hidden, so that the safety is good. However, the bladeless fan has the following problem that the air outlet position is single, and uniform air outlet from the whole air outlet side cannot be realized.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a bladeless fan capable of uniformly discharging air from an air outlet side.

The technical scheme adopted by the utility model for solving the technical problem is as follows:

the utility model provides a bladeless fan, includes the base, is located preceding shell and backshell on the base, it gets rid of the wind chamber to form one between preceding shell and the backshell, leave the annular air-out space that can go forward the air-out between the edge of preceding shell and the edge of backshell, the middle part of backshell is provided with the air intake, it is provided with in the wind chamber to get rid of can follow the air that gets rid of the wind intracavity the wind wheel that gets rid of that annular air-out space blew off, it is connected with and drives its pivoted driver to get rid of the wind wheel.

Preferably, the middle portion of the front housing is bulged forward so that the rear side of the front housing forms a cavity, and the driver includes a motor disposed in the cavity.

Preferably, a partition plate for shielding the concave cavity is arranged at the opening of the concave cavity, and an output shaft of the motor penetrates through the partition plate and is connected with the wind throwing wheel.

Preferably, the wind throwing wheel comprises a circular base plate and a plurality of arc wind throwing plates arranged on the rear side face of the circular base plate, and the arc wind throwing plates are uniformly arranged around the axis of the circular base plate.

Preferably, a rotating shaft mounting seat protruding backwards is arranged in the middle of the circular base plate, the outer side ends of all the arc-shaped air throwing plates are located at the edge of the circular base plate, and a space is reserved between the rotating shaft mounting seats and the inner side ends of all the arc-shaped air throwing plates, so that an air inlet cavity opposite to the air inlet is formed in the middle of the air throwing wheel.

Preferably, a plurality of air deflectors located between the wind throwing wheel and the annular air outlet gap are arranged in the wind throwing cavity, and an air outlet channel for tangential air outlet along the wind throwing wheel is formed between adjacent air deflectors.

Preferably, a grille is arranged at the air inlet.

The utility model has the beneficial effects that: when the wind wheel of getting rid of rotates, can inhale the air chamber of getting rid of with outside, will get rid of the air in air chamber simultaneously and blow off from annular air-out space, realize evenly air-out forward.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an exploded view of the present invention;

fig. 4 is a perspective view of the flail wheel.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "preferred", "less preferred", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "preferred" or "less preferred" may explicitly or implicitly include at least one such feature.

Referring to fig. 1 to 4, an embodiment of the present invention provides a bladeless fan, including a base 1, a front case 2 and a rear case 3 located above the base 1, wherein edge portions of the front case 2 and the rear case 3 are both curved forward to form a disc-shaped structure, and lower end portions of the front case 2 and the rear case 3 are both fixed to the base. Form one between preceding shell 2 and the backshell 3 and get rid of wind chamber 40, the diameter of backshell 3 is greater than the diameter of preceding shell 2, leaves annular air-out space 41 that can go forward the air-out between the edge that makes preceding shell 2 and backshell 3, and the middle part of backshell 3 is provided with air intake 31, gets rid of being provided with in the wind chamber 40 and can getting rid of the wind wheel 5 that gets rid of the air that the wind intracavity 40 was blown out from annular air-out space 41, gets rid of the wind wheel 5 and is connected with and can drive its pivoted driver 6.

When the wind throwing wheel 5 rotates, the outside air can be sucked into the wind throwing cavity 40, and meanwhile, the air in the wind throwing cavity 40 is blown out from the annular air outlet gap 41, so that forward uniform air outlet is realized.

In a preferred embodiment of the present invention, the middle portion of the front case 2 is bulged forward so that the rear side of the front case 2 forms a cavity 201, and the driver 6 includes a motor disposed in the cavity 201. Specifically, a partition plate 9 for shielding the cavity 201 is arranged at an opening of the cavity 201, the partition plate 9 is connected with the front shell 2 through a screw, the motor is fixedly installed on the partition plate 9, and an output shaft of the motor penetrates through the partition plate 9 backwards and is connected with the wind throwing wheel 5. Adopt baffle 9 to separate cavity 201 and flail wind chamber 40, can avoid outside dust to get into in the motor in cavity 201.

In a preferred aspect of the present invention, the wind slinger 5 comprises a circular base plate 51, and a plurality of arc-shaped wind slinger plates 52 provided on the rear side surface of the circular base plate 51, and the respective arc-shaped wind slinger plates 52 are uniformly arranged around the axis of the circular base plate 51.

Specifically, the middle of the circular base plate 51 is provided with a rotating shaft mounting seat 53 protruding backwards, the outer ends of all the arc-shaped air throwing plates 52 are located at the edge of the circular base plate 51, and a space is reserved between the rotating shaft mounting seats 53 at the inner ends of all the arc-shaped air throwing plates 52 so that the middle of the air throwing wheel 5 forms an air inlet cavity 501 opposite to the air inlet 31.

Further, a plurality of air-throwing cavities 40 are arranged in the air-throwing cavityA wind deflector 7 between the wind throwing wheel 5 and the annular wind outlet gap 41,the air guide plate 7 is integrally formed on the front side surface of the rear case 3 or the rear side surface of the front case 2.The inner side parts of the air deflectors 7 are arranged along the tangential direction of the wind throwing wheel 5, so that an air outlet channel 71 for discharging air along the tangential direction of the wind throwing wheel 5 is formed between the adjacent air deflectors 7. The width and the shape of each air outlet channel 71 are the same, the uniformity of air outlet can be further improved, the air outlet channels 71 can exhaust air along the tangential direction of the wind throwing wheel 5, the friction between the air deflector 7 and air flow can be reduced as far as possible, the energy loss is reduced, and the energy conversion rate of electric energy and wind energy is improved

In order to avoid larger objects from entering the air inlet 31 and causing blockage, the air inlet 31 is provided with a grid 8.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical scope of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.

Claims

1. A bladeless fan, characterized in that, comprising a base (1), a front casing (2) and a rear casing (3) positioned on the base (1), the front casing (2) and the rear casing (3) ), an air blowing cavity (40) is formed between the edges of the front shell (2) and the edge of the rear shell (3). The middle part of the shell (3) is provided with an air inlet (31), and the air blowing cavity (40) is provided with a blowing wind capable of blowing out the air in the air blowing cavity (40) from the annular air outlet gap (41). A wheel (5) is connected with a driver (6) capable of driving the wind throwing wheel (5) to rotate.

2. A kind of bladeless fan according to claim 1, is characterized in that, the middle part of described front casing (2) bulges forward so that the rear side of front casing (2) forms a cavity (201), The driver (6) includes a motor arranged in the cavity (201).

3 . The bladeless fan according to claim 2 , wherein a partition plate ( 9 ) for shielding the cavity ( 201 ) is provided at the opening of the cavity ( 201 ). 3 . The output shaft passes through the partition plate (9) and is connected with the wind throwing wheel (5).

4. A bladeless fan according to claim 1, characterized in that, the wind throwing wheel (5) comprises a circular base plate (51) and a plurality of Each arc-shaped wind-slinging plate (52) is evenly arranged around the axis of the circular base plate (51).

5. A bladeless fan according to claim 4, characterized in that a rearwardly protruding rotating shaft mounting seat (53) is provided in the middle of the circular base plate (51), and all arc-shaped wind-slinging plates ( The outer ends of 52) are all located at the edge of the circular base plate (51), and all the inner ends of the arc-shaped wind rejection plates (52) are left with space between the rotating shaft mounting seats (53) to allow the wind rejection The middle of the wheel (5) forms an air inlet cavity (501) which is directly opposite to the air inlet (31).

6 . The bladeless fan according to claim 1 , wherein a plurality of blades located between the wind slinger ( 5 ) and the annular air outlet gap ( 41 ) are provided in the air slinging cavity ( 40 ). 7 . Air deflectors (7) between adjacent air deflectors (7) form air outlet passages (71) along the tangential direction of the wind slinger (5).

7 . The bladeless fan according to claim 1 , wherein a grille ( 8 ) is provided at the air inlet ( 31 ). 8 .