CN218062833U

CN218062833U - Electric fan screen cover assembly

Info

Publication number: CN218062833U
Application number: CN202220990404.XU
Authority: CN
Inventors: 吴基安
Original assignee: Foshan Nanhai Yl Electric Appliance Co ltd
Current assignee: Foshan Nanhai Yl Electric Appliance Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-12-16
Anticipated expiration: 2032-04-27

Abstract

The utility model provides an electric fan mesh enclosure assembly, which relates to the technical field of electric fans and comprises a front frame, a rear frame, annular ribs and curved ribs, wherein the annular ribs are respectively arranged along the radial intervals between a first frame and a first central plate, and between a second frame and a second central plate, and a first annular part, a plurality of second annular parts and a third annular part which are mutually corresponding and have sequentially increased circumferential diameters are respectively formed on the front frame and the rear frame; the curve rib is in first annular portion, a plurality of second annular portion and the third annular portion of radially arranging the setting on preceding frame and back frame to be connected with the annular rib, aim at solving the problem that the wind current loss of pressure leads to the wind current not concentrated, the noise is big. Compared with the prior art, the air guide performance of the fan blade for generating the air flow is improved, the resistance of the mesh enclosure to the air outlet of the fan blade is effectively reduced, the loss of the air outlet is reduced, the noise is reduced, and the air volume and the air exhaust distance of the air exhaust are increased.

Description

Electric fan screen cover assembly

Technical Field

The utility model relates to an electric fan technical field, in particular to electric fan screen panel subassembly.

Background

The fan guard is a protective cover mounted on the fan, and plays a role in preventing hands and feet of people or other foreign matters from touching the fan blades when the fan blades rotate at a high speed.

Most of the existing electric fan mesh enclosures adopt hollow mesh enclosures, so that wind current can flow through the middle of the mesh enclosure and wind current around the mesh enclosure can flow through the side edges of the hollow mesh enclosures, and the method can reduce noise, but wind power is scattered and not concentrated; still a screen panel has the wall thickness structure, but this structure can't concentrate the direction to the wind current, and the wind current is in disorder, leads to the screen panel vibrations, shakes and produces great noise.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric fan screen panel subassembly aims at solving the problem that the loss of pressure of the wind current leads to the wind current not to concentrate, and the noise is big.

In order to achieve the above object, the utility model provides an electric fan screen assembly, include: a front frame including a first bezel and a first center plate; a back frame including a second bezel and a second center panel; the centers of the first frame, the first center plate, the second frame and the second center plate are on the same central axis; the front frame and the rear frame are detachably connected through the first frame and the second frame; the annular ribs are respectively arranged along the radial intervals between the first frame and the first central plate and between the second frame and the second central plate, and a first annular part, a plurality of second annular parts and a third annular part which correspond to each other in the front-back direction and are sequentially increased in circumferential diameter are respectively formed on the front frame and the rear frame; the curved ribs are arranged in the first annular part, the plurality of second annular parts and the third annular part on the front frame and the rear frame in a radial manner and are connected with the annular ribs; the number of the curved ribs is increased from the first annular part to the plurality of second annular parts and third annular parts in sequence; the curved ribs are bent in the first annular part and the second annular parts towards the clockwise direction or the anticlockwise direction; the curved ribs in the third annular portion are bent in a direction opposite to the direction of bending of the curved ribs in the first annular portion and the plurality of second annular portions.

Furthermore, a plurality of connecting ribs which are vertically bent are arranged between the outer peripheral edge of the third annular part on the rear frame and the inner peripheral edge of the second frame, and the bending direction of the connecting ribs is consistent with that of the curved ribs in the third annular part on the rear frame.

Further, the front frame and the rear frame are both in a circular arch shape, the thickness of the front frame is H1, the thickness of the rear frame is H2, and H2 is greater than H1.

Further, the width of the first annular portion in the radial direction is greater than the width of a third annular portion, the width of the third annular portion in the radial direction is greater than the width of a single second annular portion, and the total width of the two second annular portions is greater than the width of the first annular portion.

Further, the curved ribs in the second annular portions are consistent in number and are correspondingly connected.

Further, be equipped with screw post and back-off strip on the first frame, be equipped with connecting hole and back-off groove on the second frame, the screw post with the connecting hole passes through the screw and links to each other, the back-off strip with back-off groove lock joint links to each other.

Furthermore, the first central plate is provided with a fan blade shaft hole and a decoration panel mounting hole, and the second central plate is provided with a motor mounting hole.

The utility model provides an electric fan screen panel subassembly, compare in prior art, form mutual correspondence and the first annular portion that the diameter increases in proper order through annular rib on preceding frame and after-frame, a plurality of second annular portion and third annular portion, the curve rib is the radiation and arranges the setting wherein and the quantity of curve rib scales up in proper order from first annular portion to a plurality of second annular portion and third annular portion, thereby let the flabellum produce the wind-guiding performance of distinguished and admirable and improve, effectively reduced the screen panel to the flabellum resistance of going out wind and reduced the loss of air-out, the noise has been reduced, the amount of wind of airing exhaust and the distance of airing exhaust have been increased.

Drawings

FIG. 1 is a front view of a front frame;

FIG. 2 is a rear view of the front frame;

FIG. 3 is a front view of the rear frame;

fig. 4 is a rear view of the rear frame.

[ description of reference ]

10-a front frame; 11-a first frame; 111-screw post; 112-an inverted strip; 12-a first midplane; 121-blade shaft holes; 122-decorative panel mounting holes;

20-a rear frame; 21-a second frame; 211-connection holes; 212-undercut groove; 22-a second centre plate; 221-motor mounting holes; 23-connecting ribs;

30-annular ribs; 40-curved ribs; 50-a first annular portion; 51-a second annular portion; 52-third annular portion.

Detailed Description

The present invention will be described in detail with reference to the following specific examples.

In the present application, when directional terms are used, they are used for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the scope of the invention in any way.

In the present invention, unless otherwise expressly specified or limited, when terms such as "disposed on," "connected to," or "connected to" are present, these terms 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 skilled in the art according to specific situations.

As shown in fig. 1-4 in combination, a fan guard assembly includes a front frame 10, a rear frame 20, an annular rib 30, and a curved rib 40.

The front frame 10 includes a first rim 11 and a first center plate 12, and the rear frame 20 includes a second rim 21 and a second center plate 22; the centers of the first side frame 11, the first center plate 12, the second side frame 21 and the second center plate 22 are on the same central axis, the front frame 10 and the rear frame 20 are detachably connected through the first side frame 11 and the second side frame 21, and a containing cavity for installing fan blades is formed inside the front frame 10 and the rear frame 20 after the front frame 10 and the rear frame 20 are assembled.

The annular ribs 30 are respectively arranged along the radial intervals between the first frame 11 and the first central plate 12, and between the second frame 21 and the second central plate 22, and form a first annular portion 50, a plurality of second annular portions 51 and a third annular portion 52 which are respectively corresponding to each other in the front-back direction and have sequentially increased circumferential diameters on the front frame 10 and the rear frame 20.

The curved ribs 40 are arranged in a radial shape in the first annular portion 50, the plurality of second annular portions 51 and the third annular portion 52 on the front frame 10 and the rear frame 20, and are connected with the annular ribs 30; the number of curved ribs 40 increases from the first annular portion 50 to a number of second and third

annular portions

51, 52. The number of curved ribs 40 in the second annular portions 51 is consistent and correspondingly connected. Wherein, annular rib 30 and curved rib 40 are as an organic whole structure with front frame 10 and rear frame 20 respectively, wholly adopt stereoplasm PVC material system, can effectively improve the wind-guiding performance of screen panel and the holistic toughness strength of screen panel.

The curved ribs 40 are bent in the first annular part 50 and the plurality of second annular parts 51 towards the clockwise direction or the anticlockwise direction, so that the bending direction of each curved rib 40 is the same as the rotating direction of the fan blades, and the pressure loss of the air flow is favorably reduced, and the noise is further reduced.

The curved ribs 40 in the third annular portion 52 are bent in the opposite direction to the curved ribs 40 in the first annular portion 50 and the plurality of second annular portions 51, thereby increasing the area through which the air flows, and thus increasing the air output.

In the radial direction, the width of the first annular portion 50 is greater than the width of the third annular portion 52, and the width of the third annular portion 52 is greater than the width of the single second annular portion 51. And the total width of the two second annular portions 51 is greater than the width of the first annular portion 50.

Compared with the prior art, the air-conditioning device can reduce the pressure loss of air flow, reduce noise, increase air output and air supply distance, and has firmer structure.

In this embodiment, a plurality of connecting ribs 23 are disposed between the outer peripheral edge of the third annular portion 52 on the rear frame 20 and the inner peripheral edge of the second frame 21, the bending direction of the plurality of connecting ribs 23 is consistent with the bending direction of the curved ribs 40 in the third annular portion 52 on the rear frame 20, an air guiding portion is formed on the rear frame 20, and by the arrangement of the plurality of connecting ribs 23, an irregular wind flow can uniformly flow along the length direction of the plurality of connecting ribs 23, so that the wind flow direction is consistent, wind concentration can be achieved, and noise can be reduced.

In the above embodiment, the front frame 10 and the rear frame 20 are both in a circular arch shape, the thickness of the front frame 10 is H1, the thickness of the rear frame 20 is H2, and H2 > H1, so that a containing cavity for installing fan blades is formed after connection.

In this embodiment, the first frame 11 is provided with a screw post 111 and an inverted strip 112, the second frame 21 is provided with a connecting hole 211 and an inverted groove 212, the screw post 111 is connected with the connecting hole 211 through a screw, and the inverted strip 112 is connected with the inverted groove 212 in a fastening manner. Wherein, first frame 11 is the circular platform cyclic annularly, and screw post 111 and back-off strip 112 encircle the inboard surface setting of first frame 11, and second frame 21 is the ring form, and back-off strip 112 and back-off groove 212 directly set up on the terminal surface of second frame 21, are convenient for cooperate screw post 111 and the connection of back-off strip 112 when being connected with first frame 11.

In this embodiment, the first center plate 12 is provided with a blade shaft hole 121 and a decorative panel mounting hole 122, and the second center plate 22 is provided with a motor mounting hole 221.

The utility model provides an electric fan mesh enclosure subassembly, compare in prior art, form first annular portion 50 that corresponds each other and the diameter increases in proper order on preceding frame 10 and rear frame 20 through annular rib 30, a plurality of second annular portion 51 and third annular portion 52, curve rib 40 is the radiation shape and arranges the setting wherein and curve rib 40's quantity scales up in proper order from first annular portion 50 to a plurality of second annular portion 51 and third annular portion 52, thereby let the flabellum produce the wind-guiding performance of distinguished and admirable and improve, effectively reduced the mesh enclosure to the resistance of flabellum play wind and reduced the loss of air-out, the noise has been reduced, the amount of wind of airing exhaust and the distance of airing exhaust have been increased.

The features of the embodiments and embodiments described above may be combined with each other without conflict.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A fan guard assembly, comprising:

a front frame including a first bezel and a first center plate;

a back frame including a second bezel and a second center panel;

the centers of the first frame, the first center plate, the second frame and the second center plate are on the same central axis;

the front frame and the rear frame are detachably connected through the first frame and the second frame;

the annular ribs are respectively arranged along the radial intervals between the first frame and the first central plate and between the second frame and the second central plate, and a first annular part, a plurality of second annular parts and a third annular part which correspond to each other in the front-back direction and are sequentially increased in circumferential diameter are respectively formed on the front frame and the rear frame;

the curved ribs are arranged in the first annular part, the plurality of second annular parts and the third annular part on the front frame and the rear frame in a radial manner and are connected with the annular ribs;

the number of the curved ribs is increased from the first annular part to the plurality of second annular parts and third annular parts in sequence;

the curved ribs are bent towards the clockwise direction or the anticlockwise direction in the first annular part and the plurality of second annular parts;

the curved ribs in the third annular portion are bent in a direction opposite to the direction of bending of the curved ribs in the first annular portion and the plurality of second annular portions.

2. The electric fan guard assembly as defined in claim 1, wherein a plurality of connecting ribs are provided between an outer peripheral edge of the third annular portion of the rear frame and an inner peripheral edge of the second rim, the connecting ribs being vertically bent in a direction corresponding to a bending direction of the curved ribs in the third annular portion of the rear frame.

3. The electric fan guard assembly as defined in claim 1 or 2 wherein said front frame and said rear frame are each dome shaped, said front frame having a thickness H1 and said rear frame having a thickness H2, said H2 > said H1.

4. The electric fan shroud assembly in accordance with claim 1 wherein said first annular portion has a width in the radial direction greater than a width of a third annular portion, said third annular portion having a width in the radial direction greater than a width of a single said second annular portion, the total width of the two second annular portions being greater than the width of the first annular portion.

5. The electric fan guard assembly as defined in claim 1 wherein said plurality of said second annular portions have a uniform number of said curvilinear ribs and are correspondingly connected.

6. The electric fan guard assembly as defined in claim 1, wherein the first frame has a screw post and a reverse bar, the second frame has a connection hole and a reverse groove, the screw post is connected to the connection hole by a screw, and the reverse bar is connected to the reverse groove.

7. The fan guard assembly as defined in claim 1, wherein said first central panel has fan blade shaft openings and fascia mounting openings, and said second central panel has motor mounting openings.