JPH0443898A - Air blower - Google Patents

Abstract

PURPOSE: To facilitate the cleaning of an impeller and a blower interior by installing a door panel of a size covering the impeller opening part, in a blower cleanout door. CONSTITUTION: A door is provided with a door panel 64 of a size covering an impeller opening part, a blower supporting means 100 attached to this door panel 64, and a supporting means 120 supporting the door panel 64 on a blower housing 20, respectively. This blower supporting means 100 situates an impeller 12 in the blower housing 20 when the door panel 64 coveres the impeller opening part, supporting a blower assembly 11. The supporting means 100 rotates the door panel 64 in a space between a closed position wherein the blower wheel 12 is situated in the blower housing 20 for operation, and an open position in which the blower wheel is swung outward the blower housing through the impeller opening for easy cleaning of the impeller and the blower interior.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates generally to a blower cleaning door assembly for a dryer, and specifically includes a swinging door for mounting a blower assembly;
The present invention relates to a dryer blower in which a blower assembly including a blower swings out of the dryer housing when the door is opened to facilitate cleaning. The present invention is also applicable to blowers used in blowers and other industrial equipment where it is necessary to have easy access to the inside of the blower to collect lint and other foreign matter.

(Background of the Invention) The blowers used in dryers (laundries) are radial type blowers, in which the blades are arranged in a radial arrangement. This type of blower typically self-cleans and removes any lint or threads contained in the dryer air stream. However, in order to increase its efficiency, radial type fans need to be rotated at higher rpm than, for example, backward tilt type fans. In this case, the noise of the blower becomes high, so a dryer equipped with a blower with low noise is desired.

Backward tilt blowers are generally quieter than radial blowers. Because it has higher efficiency than a radial blower, a backward tilt blower can rotate at a slower speed and still deliver the same amount of air. However, the leading edge of this blower appears to be more likely to trap lint and threads than a radial blower. Laundries use detergents and wash water additives that leave a sticky residue on the blower, which tends to increase lint build-up.

Lint that accumulates on the blower can cause the blower to become unbalanced, cause undesirable vibrations, and shorten its service life. Traditionally, cleaning lint from a blower has involved the inconvenience of accessing it through a small cleaning door. These cleaning doors are typically located at the bottom of the blower housing to facilitate the removal of nuts, bolts, and other foreign objects that may be drawn into the blower housing. However, due to the size and position of these cleaning doors, cleaning is not performed properly, which results in further worsening of the imbalance of the blower.

Therefore, for blowers including backward-tilting blowers, the desired location can be easily accessed and cleaned as often as necessary.
Therefore, it has been desired to extend the service life and reduce the downtime.

(Summary of the Invention) The present invention provides a blower cleaning door assembly that allows quick and convenient access to the blower to facilitate cleaning, prevents unbalanced operation of the blower, and extends the service life of the blower. I will provide a.

In summary, the blower cleaning door of the present invention is designed for use with a dryer or other blower having a blower housing with a blower opening and a blower assembly including the blower and a motor. be done. The blower cleaning door includes a door panel sized to cover the blower opening. A blower support is attached to the door panel to support the blower assembly. A door panel is pivotally connected to the blower housing and is closed to seal the blower opening and position the blower for operation within the blower housing, or to swing the blower.
It is opened for easy cleaning through the blower opening.

As mentioned above, the blower cleaning door according to the present invention facilitates access to the blower, thereby facilitating cleaning of the blower and the inside of the blower, thereby minimizing unbalanced operation of the blower and extending its service life. It can be extended.

The invention will now be described with reference to illustrated embodiments.

(Description of Embodiments) As shown in Figure 1.2, the blower cleaning door of the present invention has ten
Indicated by The blower assembly 11 includes a blower wheel I2 and a part 14. The assembly has a motor 14 and a blower 12, the motor 14 being securely mounted outside the door 10, its shaft 15 passing through the door, and the blower 12 being mounted directly on the shaft 15 inside the door. . In the preferred embodiment, the door 10 is designed to be installed in an industrial sized dryer 16, which includes a blower housing 20 having a blower opening 22. However, since this door can also be used with blowers for other industrial equipment where lint and other foreign matter accumulate, it is necessary to provide easy access to the blower and the inside of the blower.

The door 10 is pivotally connected to the blower housing sink 20.

In this way, the door lO is closed so as to seal the blower opening 22.
can be closed to position the fan 12 for operation (see FIG. 2), and the door can be easily opened to clean the fan 12 (see FIG. 1). Since the blower 12 can be easily accessed, it can be easily cleaned. This accessibility allows the blower to be cleaned frequently and thoroughly, extending the useful life of the blower assembly 11 and reducing downtime. Furthermore,
Foreign objects such as nuts, bolts, etc. can be easily removed from within the blower housing. The dryer 16 is equipped with an interlock switch (not shown) to prevent the blower from rotating when the door is opened.

Figure 3.4 shows details of the blower housing 20. The housing 20 includes a front panel 24, a rear panel 26, a top panel 30, a bottom panel 32, and two side panels 34.
including. Front panel 24 includes four edges with outwardly directed flanges 36. Similarly, rear panel 26 includes four edges with outwardly facing flanges 40.

The panels 24 , 26 , 30 , 32 , 34 together form a box-shaped blower chamber 42 . The chamber 42 is subdivided into two compartments, a blower chamber 44 (on the left in FIGS. 1-3) and a blower discharge chamber 46 (on the right in FIGS. 1-3). The blower chamber 44 has the door 1
When closed, the blower 12 is accommodated. The blower 12 is attached to the inner end of a motor shaft 15, and the shaft is attached to the front panel 2.
It passes through the blower opening 22 at 6 and enters the blower chamber 44 . Air enters the blower chamber 44 through the inlet opening 50 in the rear panel 26 and passes through the vortex element at the blower inlet. Preferably, both openings 22.50 are circular and have approximately the same diameter. The diameter of the opening 22 needs to be sufficiently larger than the diameter of the blower 12 so that the blower can rotate to enter and leave the blower chamber 44 while the door 10 is being opened and closed.

The air discharged from the blower 12 is then transferred to the blower discharge chamber 4.
6 and exit through exit 54 in top panel 30. Preferably, outlet 54 is a rectangular opening. This opening typically connects to an outlet duct (not shown). At this point, some of the air is preferably recirculated back to the dryer and ±
50-70% of the heat is recovered and the remaining air is discharged via an exhaust duct and a lint collector (not shown).

Looking at the details of blower assembly 11, the assembly includes blower wheel 12 and motor 14, as described above. Blower I
2 is attached to the motor shaft 15.

Motor 14 is of conventional type and includes a support base 60.

The blower 12 includes a blade wheel 6I having a backwardly inclined quality, in which the leading edge of the blade tip points in the rotating direction and the trailing edge points in the counter-rotating direction. This type of blower has higher efficiency than commonly used radial blowers and is quieter because it delivers the same amount of air at a lower speed.

Referring to FIGS. 5-7, door lO is isolated from dryer 16 and blower assembly 11 and includes a door panel 64 sized to cover blower opening 22. Referring to FIGS. Door panel 64 is essentially rectangular and includes a far straight left side 66, a straight top side 70 and a bottom side 72, as shown in FIG. The sides 66, 70, 72 have edge flanges 74, 76 respectively.
．． 80, said edge flange extending outwardly or away from the dryer 12 when the door is installed and closed. Door panel 64 also includes a proximal side 82 with three edges 84, 86, 90. This side has sharp edges, but the three edges or chamfered corners provide a large gap when the door is pivoted open, allowing easy access to the blower for cleaning. One edge 84 is centered on side 82, parallel to side 66, and has a length approximately half the length of side 6, while the other two edges 86.90 are at approximately 45°. extending inwardly from both ends of edge 84 at an angle of .

The proximal side (edge) 84.86.90 includes an outwardly extending edge flange 92.94.96.

The blower support 100 is attached to the exterior of the door panel 64 that supports the blower motor 14. Blower support 100 includes a motor platform 102 extending perpendicularly outwardly from door panel 64 . Motor platform 102 is sized to securely support motor 14 and includes two vertically curved sides 104. For example, two support brackets 106 extending a distance of approximately 415 the height of the door panel.
is welded to the blower support platform 102 to hold it in place.

To mount blower assembly 11 on blower support 100, motor 12 is placed on motor platform 102 and secured thereto, for example, by bolts (not shown) passing through motor base 61 and slots 110 in the platform. When the motor 12 is properly installed, the motor shaft 15 passes through the shaft opening 112 in the door panel 64 to connect the blower 12 to the shaft 15 on the opposite side of the door panel 64. A shaft seal (not shown) surrounds the shaft 15 on the motor side of the panel 64 and includes the hole 11 surrounding the shaft opening 112.
It is fixed to the panel by bolts (not shown) passing through 6.

The door 10 is rotatably attached to the blower housing 20 by two hinge rods 120. The hinge rod is connected to the top side 70 and the bottom side 72 and is in particular welded to the edge flange 76.80. A portion of the hinge rod 120 extends beyond the far side 66 of the panel 64. The outer end of hinge rod 120 has a pivot opening 122. Hinge rod 120 is aligned with a short shaft 124 and bolt 126 attached to blower housing 20 (see FIG. 3) for pivotally mounting door 10 in the blower housing.

It is important that the blower opening 22 is sealed when the door 10 is in the closed operating position.

For this purpose, a circular door seal 130 is secured to the edge of the opening 22 (see FIG. 3). This seal 13
0 is preferably a pressure sensitive adhesive sponge tape. Additionally, three over-center quick release fasteners 132 may be attached to the front panel 24 of the blower housing.

Three fastening pads 134 are mounted on the door panel 62 (see FIG. 6). When door IO is closed, fastener 1
32 tightens the door with a fastening pad 134 to securely hold the door in the closed operating position as shown in FIG.

As is clear from the above, the blower cleaning door of the present invention allows access to the blower in a few seconds, facilitates cleaning of the blower, and thus prevents unbalanced operation of the blower and extends its service life. can do.

The present invention is not limited to the above description, and various changes can be made within the scope of the present invention.

[Brief explanation of drawings]

Figure 1 is a top view of the blower cleaning door assembly installed in the blower housing and rotated open for cleaning; Figure 2 is a top view of the blower cleaning door assembly, with the door assembly closed for blower operation; Figures similar to the Figures: Figure 3 is a front view of the door assembly of Figure 2; Figure 4 is a side view of the door assembly of Figure 2; FIG. 5 is an enlarged plan view of the door assembly separated from the blower and blower housing; FIG. 6 is a front view of the door assembly of FIG. 5; FIG. 7 is a side view of the door assembly of FIG. 5. It is. 10...Blower cleaning door 11...Blower assembly 12...Blower wheel 14...
- Motor 16... Dryer 20... Blower housing 22... Blower opening 24... Front panel 26
...Rear panel 30...Top panel 32...
・Bottom panel 36.40...Flange 42...
・Blower chamber 44...Blower chamber 46...Blower discharge chamber 50...Inlet opening 54...Outlet
60...Support base 64...Door panel 66.70.72...Side portion 74.76.80...Edge flange 92.94.96...Edge flange 100...Blower support 102...Motor platform 110...Slot 120...Hinge shaft 130
...Door seal 132...Quick detachable fastener 134...Tightening pant FIG, 5

Claims (1)

[Claims] 1. A blower including a blower housing having a blower opening, a blower assembly including a blower and a motor, and a blower cleaning door, wherein the door has a blower opening. a door panel having a size to cover the air blower housing, a blower support means attached to the door panel, and a pivot means for pivotally connecting the door panel to the blower housing, and the blower support means is configured such that the door panel is connected to the blower opening. a closed position in which the blower wheel is positioned within the blower housing for operation when the blower housing is covered to support the blower assembly;
pivoting the door panel between the blower and an open position in which the blower is rotated through the blower opening and out of the blower housing to facilitate cleaning of the interior of the blower; A blower characterized by: 2. The blower according to claim 1, further comprising sealing means for sealing the blower opening when the door panel is closed. 3. The blower support means includes a motor platform extending perpendicularly outward from the outside of the door panel, and the motor is mounted on the motor platform.
The air blower according to claim 2. 4. The blower of claim 3, wherein the door panel has a shaft opening, the motor has a shaft passing through the shaft opening, and the blower is mounted on the shaft inside the door panel. 5. The blower of claim 4, wherein said sealing means comprises a sealing strip fixed around said blower opening. 6. The blower of claim 5 including quick release fastening means for removably fastening said door panel in the closed position. 7. In a combination of a blower cleaning door, a blower housing having a blower opening, and a blower assembly, the blower assembly is installed on the blower cleaning door, and the blower and the motor are connected to each other. the blower cleaning door includes a door panel sized to cover the blower opening, blower support means attached to the door panel, and pivot means for pivotally connecting the door panel to the blower housing. , the blower support means positions the blower within the blower housing to support the blower assembly when the door panel covers the blower opening, and the pivot means supports the blower assembly for operation. a closed position in which the windmill is located within the blower housing, and a closed position in which the windmill is pivoted to the outside of the blower housing through the blower opening to facilitate cleaning of the blower and the interior of the blower; The combination body is characterized in that the door panel is rotated between an open position and an open position. 8. The combination of claim 7, wherein the blower cleaning door includes sealing means for sealing the blower opening when the door panel is closed. 9. The blower support means includes a motor platform extending perpendicularly outwardly from the outside of the door panel, and the motor is mounted on the motor platform.
The combination according to claim 8. 10. The door panel of claim 9, wherein the door panel has a shaft opening, the motor has a shaft passing through the shaft opening, and the blower is mounted on the shaft adjacent to the inside of the door panel. combination body. 11. The combination of claim 10, wherein said sealing means comprises a sealing strip secured around the edge of said blower opening. 12. The combination of claim 11 including quick release fastening means for removably fastening said door panel in the closed position. 13. In a combination of a blower housing having a blower opening, a blower cleaning door pivotally mounted on the blower housing, and a blower assembly installed on the blower cleaning door, the blower a door panel sized for a cleaning door to cover the blower opening; a blower support means attached to the panel for supporting the blower assembly; and a pivot for pivotally connecting the door panel to the blower housing. means, the pivot means being arranged in a closed position in which the blower is located within the blower housing for operation and in a closed position in which the blower is located in the blower opening to facilitate cleaning of the blower and the blower interior. The combination is characterized in that the door panel is pivoted between an open position and an open position in which the door panel is pivoted through the opening to the outside of the blower housing. 14. The combination of claim 13, wherein the blower cleaning door includes sealing means for sealing the blower opening when the door panel is closed. 15. The combination of claim 14, wherein the blower support means includes a motor platform extending perpendicularly outwardly from the outside of the door panel, and wherein the motor is mounted on the motor platform. 16. The door panel has an axle opening, the motor has an axle passing through the axle opening, and the blower is mounted on the axle adjacent the inside of the door panel. combination body. 17. The combination of claim 16, wherein said sealing means comprises a sealing strip extending around an edge of said blower opening. 18. The combination of claim 17 including quick release fastening means for removably fastening said door panel in the closed position.