CN213598270U - Fan front cover - Google Patents
Fan front cover Download PDFInfo
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- CN213598270U CN213598270U CN202022299340.2U CN202022299340U CN213598270U CN 213598270 U CN213598270 U CN 213598270U CN 202022299340 U CN202022299340 U CN 202022299340U CN 213598270 U CN213598270 U CN 213598270U
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- fan
- cover body
- edge
- grid
- suction surface
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Abstract
The utility model relates to the field of fans, in particular to a fan front cover, which comprises a cover body, wherein a plurality of grid pieces are arranged on the cover body, the grid pieces are arranged at equal intervals by taking the central axis of the cover body as the center of a circle, each grid piece comprises a front edge, a suction surface and a rear edge, the two sides of each suction surface are respectively connected with the front edge and the rear edge, the front edge, the rear edge and the suction surfaces are all arc-shaped, the front edge is positioned at the front side of the cover body, and the rear edge is positioned at the rear side of the cover; the one end that the effectual grid kept away from the cover body axis extends to the suction surface of adjacent censer piece along the leading edge of grid, the axial direction of grid, and the overflow, the backward flow that the one end that the grid kept away from the cover body axis produced when improving the fan operation, and then noise when reducing the fan operation improves the efficiency of fan.
Description
Technical Field
The utility model belongs to the technical field of the fan and specifically relates to a fan front shroud is related to.
Background
The fan is one of household appliances commonly used in life and is mainly used for cooling. The front cover and the rear cover of the fan in the prior art are both in a grid shape formed by connecting iron wires or plastic strips, and the front cover and the rear cover are basically the same in shape and mainly play a role in safety protection. One end of the axle center of the front cover principle of the existing fan is easy to overflow and reflux when the fan operates, and further the working efficiency of the fan is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.
The utility model provides a fan front cover, includes the cover body, is provided with a plurality of bars piece on the cover body, and a plurality of bars piece uses the axis of the cover body to set up as the centre of a circle equidistant, and the bars piece includes leading edge, suction surface, trailing edge, and the both sides of suction surface are connected with leading edge, trailing edge respectively, and leading edge, trailing edge, suction surface all are arc, and the leading edge is located the front side of the cover body, and the trailing edge is located the rear side of the cover body.
Furthermore, the cross section of the suction surface is arc-shaped.
Furthermore, the cover body also comprises a top head and a circular frame, two ends of the grid sheet are respectively connected with the outer side of the top head and the inner side of the circular frame, and the connecting end of the grid sheet and the top head is smaller than the connecting end of the grid sheet and the circular frame.
Furthermore, a plurality of clamping grooves are formed in the front side of the round frame, and each groove is located in the front side of the grid without the sheet.
Furthermore, the rear side of top is provided with the recess, and the edge in the recess is provided with a plurality of lug, and the axis that a plurality of lug used the top is equidistant setting as the centre of a circle.
Furthermore, a convex ring is arranged in the groove, and the circle center of the convex ring is the same as that of the convex block.
Furthermore, a boss is further arranged at the center of the groove, and a round hole is formed in the boss.
Further, the edge of the front side of the plug is provided with a chamfer.
Compared with the prior art, the beneficial effects of the utility model are that:
a fan front cover is provided with a plurality of grid pieces, wherein the grid pieces are arranged at equal intervals by taking a central axis of a cover body as a circle center, so that the wind of a fan can flow out through the intervals of the grid pieces conveniently; through the cooperation use of front edge, suction surface, trailing edge, suction surface all are arc, and the front edge is located the front side of the cover body, and the trailing edge is located the rear side of the cover body, and the effectual one end that makes the bars piece keep away from the cover body axis extends along the front edge of bars piece, the axial direction of bars piece to the suction surface of adjacent deletion piece, and the overflow, the backward flow that the one end produced that the bars piece kept away from the cover body axis when improving the fan operation, and then the noise when reducing the fan operation, improve the efficiency of fan.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is another schematic structural view of the present invention;
fig. 4 is another schematic structural diagram of the present invention.
In the figure: the device comprises a cover body 1, a grid plate 2, a front edge 3, a suction surface 4, a rear edge 5, a top 6, a round frame 7, a clamping groove 8, a groove 9, a bump 10, a convex ring 11, a boss 12, a round hole 13 and a chamfer 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-4, in an embodiment of the present invention, a front cover of a fan, includes a cover body 1, a plurality of grid pieces 2 are disposed on the cover body 1, the plurality of grid pieces 2 are disposed at equal intervals using a central axis of the cover body 1 as a circle center, the grid pieces 2 include a front edge 3, a suction surface 4 and a rear edge 5, two sides of the suction surface 4 are respectively connected with the front edge 3 and the rear edge 5, the front edge 3, the rear edge 5 and the suction surface 4 are all arc-shaped, the front edge 3 is located at a front side of the cover body 1, and the rear edge 5 is located at a rear side of the cover body.
A front cover of a fan is provided with a plurality of grid pieces 2, wherein the grid pieces 2 are arranged at equal intervals by taking the central axis of a cover body 1 as the center of a circle, so that the wind of the fan can flow out through the intervals of the grid pieces 2 conveniently; through the cooperation use of leading edge 3, suction surface 4, trailing edge 5, suction surface 4 all is arc, leading edge 3 is located the front side of the cover body 1, trailing edge 5 is located the rear side of the cover body 1, the effectual one end that makes grid piece 2 keep away from the axle wire of the cover body 1 extends to the suction surface 4 of adjacent deletion piece along the leading edge 3 of grid piece 2, the axial direction of grid piece 2, the overflow, the backward flow that the one end produced of grid piece 2 keep away from the axle wire of the cover body 1 when improving the fan and operating, and then reduce the noise when the fan operates, improve the efficiency of fan.
In this embodiment, the cross section of the suction surface 4 is arc-shaped; the cross section of the suction surface 4 is set to be circular arc shape, so that the wind of the fan can flow out conveniently.
In this embodiment, the cover body 1 further includes a top 6 and a circular frame 7, two ends of the grid 2 are respectively connected with the outer side of the top 6 and the inner side of the circular frame 7, and the connecting end of the grid 2 and the top 6 is smaller than the connecting end of the grid 2 and the circular frame 7; the setting of top 6, circle frame 7 is convenient for the installation, the use of fan front shroud.
In this embodiment, the front side of the circular frame 7 is provided with a plurality of slots 8, and each slot 9 is located on the front side of the grid without the sheet 2; through the setting of draw-in groove 8, the effectual stability of strengthening circle frame 7, and the installation of the fan front shroud of being convenient for.
In this embodiment, a groove 9 is formed in the rear side of the plug 6, a plurality of bumps 10 are arranged at the edge of the groove 9, and the plurality of bumps 10 are arranged at equal intervals by taking the central axis of the plug 6 as the center of a circle; the strength of the structure of the plug 6 is effectively enhanced by the arrangement of the convex blocks 10.
In this embodiment, a convex ring 11 is arranged in the groove 9, and the center of the convex ring 11 is the same as the center of the convex block 10; the strength of the plug 6 is improved by the provision of the protruding ring 11.
In this embodiment, a boss 12 is further disposed at the center of the groove 9, and a circular hole 13 is disposed in the boss 12; through the cooperation of boss 12, round hole 13, be convenient for install the pivot of the flabellum of fan in round hole 13.
In this embodiment, a chamfer 14 is provided at the edge of the front side of the plug 6; by arranging the chamfer 14, the use safety is improved, and the phenomenon that the edge of the top head 6 is too sharp to scratch a user is effectively prevented.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (8)
1. The utility model provides a fan front cover, its characterized in that, includes the cover body, is provided with a plurality of bars piece on the cover body, and a plurality of bars piece uses the axis of the cover body as equidistant setting of centre of a circle, and the bars piece includes leading edge, suction surface, trailing edge, and the both sides of suction surface are connected with leading edge, trailing edge respectively, and leading edge, trailing edge, suction surface all are arc, and the leading edge is located the front side of the cover body, and the trailing edge is located the rear side of the cover body.
2. The front cover for a fan as claimed in claim 1, wherein the suction surface has a circular arc-shaped cross-section.
3. The front cover for a fan as claimed in claim 1, wherein the cover body further comprises a top and a circular frame, both ends of the grill are respectively connected to the outside of the top and the inside of the circular frame, and the connecting end of the grill to the top is smaller than the connecting end of the grill to the circular frame.
4. The front cover for a fan as claimed in claim 3, wherein the front side of the circular frame is provided with a plurality of slots, and each slot is located on the front side of the grill-free plate.
5. The front cover for a fan as claimed in claim 3, wherein a groove is formed at a rear side of the plug, and a plurality of protrusions are formed at an edge of the groove and spaced at equal intervals around a central axis of the plug.
6. The front cover for a fan as claimed in claim 5, wherein a convex ring is provided in the groove, and the center of the convex ring is the same as the center of the convex block.
7. The front cover for a fan as claimed in claim 5, wherein a boss is further provided at a center of the recess, and a circular hole is provided in the boss.
8. The front cover for a fan as claimed in claim 5, wherein an edge of the front side of the top head is provided with a chamfer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022299340.2U CN213598270U (en) | 2020-10-15 | 2020-10-15 | Fan front cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022299340.2U CN213598270U (en) | 2020-10-15 | 2020-10-15 | Fan front cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213598270U true CN213598270U (en) | 2021-07-02 |
Family
ID=76591928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022299340.2U Active CN213598270U (en) | 2020-10-15 | 2020-10-15 | Fan front cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213598270U (en) |
-
2020
- 2020-10-15 CN CN202022299340.2U patent/CN213598270U/en active Active
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