CN211288272U

CN211288272U - Fan guard and fan

Info

Publication number: CN211288272U
Application number: CN201922421631.1U
Authority: CN
Inventors: 何晓立; 周浩年
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-08-18
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a fan mesh enclosure, which comprises a mesh enclosure body, a fixing ring arranged on the mesh enclosure body, and a plurality of spokes which are connected with the fixing ring and are in divergent distribution; the novel wind-proof mesh enclosure is characterized in that the mesh enclosure body, the fixing ring and the spokes are integrally formed, the cross section of each spoke is in a water drop shape or an oval shape, and the long edge trend of the water drop shape or the oval shape is consistent with the flow direction of wind. The utility model has the advantages that the spokes of the fan mesh enclosure are arranged into the shape of water drops, and the larger end of the spokes faces outwards, so that the wind resistance is small and the noise is low; and effectively improve the joint strength of the spoke. Meanwhile, the whole fan mesh enclosure is an integrally formed part, so that the fan mesh enclosure is simple to process and low in cost; and do benefit to the multizone independent design of spoke, avoid the middle part that traditional metal mesh enclosure exists intensive problem very much, further reduce air-out resistance and noise. The utility model also provides a fan.

Description

Fan guard and fan

Technical Field

The utility model relates to a fan technical field especially relates to a fan screen panel and have fan of this fan screen panel.

Background

A fan, which is a tool for cooling by generating wind in hot days, is generally driven by electricity and is also called as an electric fan; the method is widely applied to places such as warehouses, workshops and restaurants of houses and industrial and mining enterprises. At present, a common fan mainly includes: fan head, fan blade, screen panel and controlling means etc..

Wherein, the screen panel mainly has following two kinds of structures: the first is a metal mesh enclosure, which is commonly used for floor fans and table fans; the metal mesh enclosure needs to be subjected to a plurality of procedures such as welding, painting, electroplating and the like, and has the advantages of high strength and the disadvantages of complex processing technology, certain environmental pollution and relatively high cost; moreover, the spokes of the metal mesh enclosure extend from the edge to the center, so that the distance between the spokes at the center is extremely small, and the wind resistance and the noise are high. The other is a plastic mesh enclosure which is commonly used for the box fan; the plastic mesh enclosure is integrally formed by plastic materials, has the advantages of simple processing and lower strength, and generally has thicker mesh enclosure spokes and large wind resistance and noise for increasing the integral strength of the plastic mesh enclosure.

Disclosure of Invention

To the defect that exists among the prior art, the utility model aims to provide a processing is simple, with low costs, windage and the little and high fan guard of intensity of noise.

The utility model also provides a fan of having above-mentioned fan screen panel.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

A fan mesh enclosure comprises a mesh enclosure body, a fixing ring arranged on the mesh enclosure body, and a plurality of spokes which are connected with the fixing ring and distributed in a divergent manner; the novel wind-proof mesh enclosure is characterized in that the mesh enclosure body, the fixing ring and the spokes are integrally formed, the cross section of each spoke is in a water drop shape or an oval shape, and the long edge trend of the water drop shape or the oval shape is consistent with the flow direction of wind.

More preferably, the cross-sectional shape of the fixing ring is a drop shape or an oval shape to increase the overall structural strength.

More preferably, the aspect ratio of the drop shape or the oval shape is not more than 4.

More preferably, the edge of screen panel body is equipped with the collar, the collar with gu connect through integrated into one piece's connecting rib or connecting plate between the fixed ring.

More preferably, the fan mesh enclosure is an air outlet mesh enclosure, and a decorative cover is integrally formed in the middle of the air outlet mesh enclosure; or, the fan screen panel is the air inlet screen panel the middle part integrated into one piece of air inlet screen panel has the mounting panel be equipped with mounting hole and spacing hole on the mounting panel.

More preferably, the number of the fixing rings is at least two, each fixing ring divides the fan mesh enclosure into different areas, and the spokes of adjacent areas are arranged in a staggered or coaxial manner.

More preferably, the fixing ring is one or more of a circular ring, an elliptical ring and a polygonal ring.

More preferably, each of the fixing rings is concentrically arranged.

A fan is characterized by comprising the fan mesh enclosure.

More preferably, the fan is a floor fan, a wall fan, a ventilation fan or a table fan.

The utility model has the advantages that:

the spokes of the fan mesh enclosure are arranged into a water-drop shape or an oval shape, and the direction of the long edge of the water-drop shape or the oval shape is consistent with the flow direction of wind, so that the wind resistance is low, and the noise is low; and effectively improve the joint strength and the overall strength of the spoke. Meanwhile, the whole fan mesh enclosure is an integrally-formed part and can be formed by die casting of materials such as plastics and the like, so that the fan mesh enclosure is simple to process and low in cost; and do benefit to the multizone independent design of spoke, avoid the middle part that traditional metal mesh enclosure exists intensive problem very much, further reduce air-out resistance and noise.

Drawings

Fig. 1 is a schematic view of a fan cover structure according to embodiment 1 of the present invention.

FIG. 2 is a cross-sectional view of the spokes of FIG. 1.

Fig. 3 is a schematic view of a fan cover structure according to embodiment 2 of the present invention.

FIG. 4 is a cross-sectional view of the spokes of FIG. 3.

Description of reference numerals:

1: screen panel body, 2: fixing ring, 3: spoke, 4: decorative cover, 5: mounting ring, 6: connecting rib, 7: mounting plate, 8: mounting hole, 9: limiting hole, 10: a second mounting ring.

3-1: first spoke, 3-2: a second spoke.

Detailed Description

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Example 1

As shown in fig. 1 and 2, a fan mesh enclosure comprises a mesh enclosure body 1, a fixing ring 2 disposed on the mesh enclosure body 1, and spokes 3 connected to the fixing ring 2 and distributed in a divergent manner; its characterized in that, screen panel body 1 fixed ring 2 with spoke 3 is the integrative piece together of shaping, the cross sectional shape of spoke 3 is the water droplet shape, and the long limit trend of water droplet shape is unanimous with the flow direction of wind. Therefore, the wind resistance is small, and the noise is low; and effectively improve the joint strength of spoke, whole fan screen panel can adopt integrated into one piece's working of plastics. Here, the drop shape means: one end is a wide arc, the other end is a narrow arc, and the two ends are in transition connection through a straight line or an arc line.

The fixing ring 2 is composed of two concentric rings, a first air outlet area is formed between the inner concentric ring and the decorative cover 4, and first spokes 3-1 are arranged in the first air outlet area; a second air outlet area is formed between the two concentric rings, and second spokes 3-2 are arranged in the second air outlet area; the first spokes 3-1 and the second spokes 3-2 are arranged in a staggered mode, so that the uniformity of air outlet is improved, and noise is reduced. In other embodiments, the concentric circular rings are replaced by concentric or non-concentric elliptical rings, polygonal rings; the number of the fixing rings can be three or more, and spokes of adjacent regions are staggered or coaxially arranged; the present embodiment is not limited.

In this embodiment, preferably, the fan mesh enclosure is an air outlet mesh enclosure, a decorative cover 4 is integrally formed in the middle of the front side of the air outlet mesh enclosure, a first mounting ring 5 is formed on the rear side edge of the air outlet mesh enclosure, and the first mounting ring 5 is connected with the outermost fixing ring 2 through an integrally formed connecting rib 6. In other embodiments, the mounting ring and the outermost fixing ring are connected by an integrally formed connecting plate, which is not limited to the embodiment.

Preferably, the spokes 3 are also drop-shaped in cross-section to further reduce wind resistance and noise of the fan.

Further preferably, the length-width ratio (L: W) of the water drop shape is not more than 4, so that the strength is ensured, and materials are saved.

Compared with the prior art, the fan mesh enclosure provided by the embodiment has the advantages of small wind resistance and low noise; and effectively improve the joint strength of the spoke. Meanwhile, the whole fan mesh enclosure is an integrally formed part, so that the fan mesh enclosure is simple to process and low in cost; and do benefit to the multizone independent design of spoke, avoid the middle part that traditional metal mesh enclosure exists intensive problem very much, further reduce air-out resistance and noise.

Example 2

As shown in fig. 3 and 4, a fan guard has a structure substantially the same as that of embodiment 1, except that:

the fan mesh enclosure is an air inlet mesh enclosure, an installation plate 7 is integrally formed in the middle of the rear side of the air inlet mesh enclosure, and installation holes 8 and limiting holes 9 are formed in the installation plate 7; the front side edge of the air inlet net cover is provided with a second mounting ring 10.

Secondly, the cross section shapes of the spokes 3 and the fixing ring 2 are elliptical.

The present embodiment provides a fan guard, which has all the technical effects of embodiment 1, and is not described herein again.

Example 3

A fan characterized by having the fan guard described in embodiment 1 and/or embodiment 2. In this embodiment, the fan is a floor fan, and in other embodiments, the fan is a wall fan, a ventilation fan, or a desk fan.

The fan provided in this embodiment has all the technical effects of embodiments 1 and 2, and is not described herein again.

It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the known art are intended to fall within the scope of the invention, which is defined by the claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.

Claims

1. A fan mesh enclosure comprises a mesh enclosure body, a fixing ring arranged on the mesh enclosure body, and a plurality of spokes which are connected with the fixing ring and distributed in a divergent manner; the novel wind-proof mesh enclosure is characterized in that the mesh enclosure body, the fixing ring and the spokes are integrally formed, the cross section of each spoke is in a water drop shape or an oval shape, and the long edge trend of the water drop shape or the oval shape is consistent with the flow direction of wind.

2. The fan guard of claim 1, wherein the cross-sectional shape of the fixing ring is a drop shape or an oval shape.

3. The fan guard of claim 2, wherein the aspect ratio of the drop shape or oval shape is not greater than 4.

4. The fan guard as claimed in claim 1, wherein a mounting ring is provided at an edge of the guard body, and the mounting ring is connected to the fixing ring by an integrally formed connecting rib or connecting plate.

5. The fan guard of claim 1, wherein the fan guard is a vent guard, and a decorative cover is integrally formed at a middle portion of the vent guard; or, the fan screen panel is the air inlet screen panel the middle part integrated into one piece of air inlet screen panel has the mounting panel be equipped with mounting hole and spacing hole on the mounting panel.

6. The fan guard of any one of claims 1-5, wherein there are at least two of the securing rings, each securing ring dividing the fan guard into different zones, the spokes of adjacent zones being offset or coaxially arranged.

7. The fan guard of claim 6, wherein the fixing ring is one or more of a circular ring, an elliptical ring, and a polygonal ring.

8. The fan guard of claim 6, wherein the retaining rings are concentrically disposed.

9. A fan having a fan guard as claimed in any one of claims 1 to 8.

10. A fan as claimed in claim 9, wherein the fan is a floor fan, wall fan, ventilation fan or table fan.