CN2588102Y

CN2588102Y - Filter cover for axial flow fan

Info

Publication number: CN2588102Y
Application number: CN 02244623
Authority: CN
Inventors: 刘永言
Original assignee: XIWANG ELECTRONIC INST CHENGDU
Current assignee: Chengdu Hope Electronic Institute Co., Ltd.
Priority date: 2002-11-04
Filing date: 2002-11-04
Publication date: 2003-11-26
Anticipated expiration: 2012-11-04

Abstract

The utility model discloses a filter cover for an axial flow fan. The utility model is composed of outer shells and filter sheets, wherein, four corners of each outer shell are provided with mounting holes, and the end face edge at the circumference is provided with a convex boss and a groove; the inner part of an outer shell frame is provided with fixed strips of the filter sheets; two V-shaped inclined U-shaped grooves are formed on the fixed strips, and are used for fixing the end heads of the filter sheets; the two outer shells are positioned and oppositely arranged by the convex boss and the groove; the filter sheets form plane shapes, and two end heads of each filter sheet are respectively arranged in the inclined opposite U-shaped grooves in the two outer shell frames which are oppositely arranged so that W-shaped arrangement is formed. The filter area of the filter cover is larger than the sectional area of air intake, and the utility model has the advantages of low wind resistance, convenient disassembly and cleanness, and good ventilating filter effect.

Description

The axial-flow blower filter cap

The utility model relates to air filter, particularly the axial-flow blower filter cap.

Common in the past axial-flow blower only has anti-wind shelling cover usually, is used for protecting blower fan and prevents that staff from running into injured.When needs filter cleaning air, a kind of plane filter cap of operated by rotary motion, the actual wind area of crossing of this blower fan filtering cover is far smaller than air-admitting surface, windage is bigger, therefore air quantity is little, and wind speed is low, in some air requirements, occasion that wind speed is bigger air filter housing is not set.

It is big that the purpose of this utility model provides a kind of filter area, the axial-flow blower filter cap that windage is little.

To achieve these goals, the utility model is made up of shell and filter sheet, and first scheme is that the shell outer has mounting hole for four jiaos, and the filter sheet fixed strip is arranged in the shell frame, and two U-groove bevels that are in the shape of the letter V and are arranged in the fixed strip, is used for fixing the termination of filter sheet; The filter sheet bending shape that is in the shape of the letter V, its two ends is respectively charged in the adjacent fixed strip U-groove bevel, is arranged in the plane, and is concordant with shell frame face.Alternative plan is that the shell outer has mounting hole, boss and groove for four jiaos, and the filter sheet fixed strip is arranged in the shell frame, and two U-groove bevels that are in the shape of the letter V and are arranged in the fixed strip, is used for fixing the termination of filter sheet; Two shells are located in opposite directions to dress with boss and groove, and it is plane that filter sheet is, and its two ends is respectively charged in opposite directions in the U-groove bevel tiltedly right in the two shell frames of dress, becomes the arrangement of W shape.Third party's case is that the shell outer has mounting hole for four jiaos, and an end face of shell inwardly has edge in the protrusion, is used for fixing filter sheet; Filter sheet is bent into the W word shape, and its bending line is in a plane; Filter sheet is packed in the shell, edge in bending line plane one end face to shell protrudes, and the other end is concordant with the end face of shell.

Because the utility model adopted dismountable filter sheet that favours the air intake direction, so incoming air area increases greatly, and windage is very little, installation, cleaning, easy to maintenance.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is first and second scheme shell plan view of the utility model

Fig. 2 is the C-C drawing in side sectional elevation of Fig. 1

Fig. 3 is the reverse view of Fig. 1

Fig. 4 is the D portion enlarged view of Fig. 2

Fig. 5 is the B portion enlarged view of Fig. 2

Fig. 6 is the A portion enlarged view of Fig. 2

Fig. 7 is first and second scheme shell stereogram of the utility model

Fig. 8 is the A portion enlarged view of Fig. 7

Fig. 9 is the B portion enlarged view of Fig. 7

Figure 10 is the utility model first scheme assembling form schematic representation

Figure 11 is the drawing in side sectional elevation of Figure 10

Figure 12 is the utility model first scheme assembling form stereogram

Figure 13 is the utility model alternative plan assembling form schematic representation

Figure 14 is the drawing in side sectional elevation of Figure 13

Figure 15 is the utility model alternative plan assembling form stereogram

Figure 16 is the utility model third party case assembling form schematic representation

Figure 17 is the drawing in side sectional elevation of Figure 16

Figure 18 is the utility model third party case assembling form stereogram

As Figure 10, Figure 11, shown in Figure 12, the utility model first scheme is made up of square shell 1, filter sheet 2, has fixed strip 3, four jiaos mounting hole 4 to be arranged in the front of shell 1.Design has item 3 in part 1 frame, and two U-groove bevel (see figure 4)s that are in the shape of the letter V and are arranged in the item 3, is used for fixing the termination of part 2; The part 2 bendings shape that is in the shape of the letter V, its two ends are respectively charged in the adjacent item 3U shape groove, are arranged in the plane, and be concordant with shell 1 frame face.When using this filter cap, with the close axial-flow blower of the one side that part 2 is installed, the mounting hole 4 aiming axis flow fan mounting holes on the shell are tightened screw and are got final product.

As Figure 13, Figure 14, shown in Figure 15, alternative plan is formed, in the front of shell 1 fixed strip 3 is arranged by two square shells 1, filter sheet 2, four jiaos have mounting hole 4, the periphery of shell 1 has boss and groove, boss and groove are symmetrical distribution (seeing Fig. 1-9), item 3 is arranged in part 1 frame, two U-groove bevels that are in the shape of the letter V and are arranged in the item 3, be used for fixing the termination of part 2; Two part 1 usefulness boss and groove location are in opposite directions to dress, and part 2 is plane, and its two ends is respectively charged in opposite directions in the U-groove bevel tiltedly right in two part 1 frames of dress, becomes W shape to arrange.When using this filter cap, only need with two in opposite directions to the part 1 mounting hole 4 aiming axis flow fan mounting holes of dress, tighten screw and get final product.

As Figure 16, Figure 17, shown in Figure 180, third party's case is made up of square shell 1, filter sheet 2, at shell 1 four jiaos mounting hole 4 is arranged, an end face of part 1 inwardly have protrude in along 5, be used for fixing part 2.Part 2 is bent into the W word shape, and its bending line is in a plane; Part 2 is packed in the part 1, and along 5, the other end was concordant with the end face of shell in part 2 bending line planes one end face to shell protruded.When using this filter cap, with the close axial-flow blower of the one side that part 2 is installed, the mounting hole 4 aiming axis flow fan mounting holes on the shell 1 are tightened screw and are got final product.

More than the fixed hole of each scheme be the structure that has counterbore, use the corresponding fixedly screw head of two screws of blower fan of counterbore at two diagonal angles usually, and the hole at two other diagonal angle penetrates long spiro nail blower fan and filter cap is fixed on the tank wall of equipment together.The user is convenient in such installation (has the screw at two diagonal angles blower fan) under the situation that needn't break blower fan, pulls down filter cap and cleans the cleaning filter cap, very convenient.

Filter sheet pastes modes such as according with the filtration gauze and constitutes by the rigid plastics net slice or on steel wire, can not be too closely knit, in case windage is too big, and possess certain stiffness, and be difficult for the passing of time distortion.The filter sheet that only uses a filter cap shell is wanted accurately in doubling postforming grade size.

The axial-flow blower filter cap of above structure is long-pending because of the section that the actual filtration area is far longer than the blower fan air intake, and the windage that filter cap is caused is very low, can not influence ventilation effect, and filter cap can pull down easily and clean, clean, and helps the user and safeguards.The profile of filter cap and structure are convenient to be installed on all unidimensional axial-flow blowers, no matter be that new deisgn product and existing procucts improve, can utilize this filter cap.This filter cap is installed on the axial-flow blower of electronic product will be improved the turbidity test of electronic product greatly, product reliability is improved greatly.

Claims

1. axial-flow blower filter cap, it is made up of shell and filter sheet, it is characterized in that: four jiaos of described shell have mounting hole, and the filter sheet fixed strip is arranged in the shell frame, and the fixed strip design has two U type grooves that are in the shape of the letter V and, and is used for fixing the termination of filter sheet; The filter sheet bending shape that is in the shape of the letter V, its two ends is respectively charged in the adjacent fixed strip U type groove, is arranged in the plane, and is concordant with shell frame face.

2. axial-flow blower filter cap, it is made up of two shells and filter sheet, it is characterized in that: four jiaos of described shell have mounting hole, and the filter sheet fixed strip is arranged in the shell frame, and two U type grooves that are in the shape of the letter V and are arranged in the fixed strip, are used for fixing the termination of filter sheet; Two shells are in opposite directions to dress, and it is plane that filter sheet is, and its two ends is respectively charged in opposite directions in the U-groove bevel tiltedly right in the two shell frames of dress, becomes the W type to arrange.

3. axial-flow blower filter cap according to claim 2 is characterized in that: end surface side is along having boss and groove around the described shell, and one-tenth is symmetrical arranged, and makes accurate positioning when in opposite directions two shells of adorning being assembled.

4. axial-flow blower filter cap, it is made up of shell and filter sheet, it is characterized in that: described shell has mounting hole for four jiaos, an end face of shell inwardly have protrude in the edge, be used for fixing filter sheet; Filter sheet is bent into the W word shape, and its bending line is in a plane; Filter sheet is packed in the shell, edge in bending line plane one end face to shell protrudes, and the other end is concordant with the end face of shell.