JP2000325719A - Filter unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter unit which has a simple structure and can be manufactured at low manufacturing cost and in which the extent of the dust removal after cleaning can easily be observed. SOLUTION: This filter unit 10 is for removing dust in a fluid, and comprises a filter 1 which is provided with a dust removal mat 1a and to be installed in the fluid, a frame 3 for slidably holding the filter 1, and a dust-removing means 2 which is for removing dust adhering to the dust removal mat 1a of the filter 1 and held by the frame 3 at a position not in contact with the fluid. The dust removing means 2 may be held slidably in the frame 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter unit, and more particularly to a filter unit used for an air-cooling structure of an information processing device.

[0002]

2. Description of the Related Art Conventionally, in information processing equipment having an air-cooled structure, a filter is used in order to suppress dust from flowing into the equipment. The filter is cleaned every time.

[0003] At this time, if a filter for collecting dust is fixed inside the apparatus, the apparatus is temporarily stopped when periodic cleaning work is performed manually, and work cannot be performed unless the exterior door is opened. At the same time, it is difficult to visually check the degree of dust removal after cleaning. Further, inside a complicated and high-density apparatus, there is a possibility that an operator may be injured during cleaning work.

Therefore, for example, in an air conditioner described in Japanese Utility Model Laid-Open Publication No. Hei 6-32926, as shown in FIG. 13, a filter provided in an indoor unit can be cleaned without removing the filter from the indoor unit. Brush 1 for removing dust adhering to filter 101 in front of filter 101
02, the connecting plate 105 is attached to the brush 102 at the rear.
A windshield sheet 104 interlocked with the above is provided, and a dust case 103 that allows air to flow into the main body while accommodating dust removed by the brush 102 is detachably attached to a lower portion.

When the brush 102 mounted on the filter 101 is slid to remove dust adhering to the filter 101, the airborne sheet 104 interlocked with the brush 102 allows the removed floating dust to enter the inside of the device. Dust removed by the brush 102 is prevented by the inflow, and falls by its own weight, and accumulates in the dust collecting case 103 mounted below the filter 101.

[0006]

However, in the above-mentioned conventional air conditioner, since the filter 101 for collecting dust is fixed inside the apparatus, the degree of dust removal after cleaning is visually checked. In addition to this, there is a problem that the structure is complicated due to the provision of the wind shield sheet 104 and the dust collecting case 103, and the manufacturing cost of the apparatus increases.

In view of the above, the present invention has been made in view of the above-mentioned problems in the conventional filter unit, and the degree of dust removal after cleaning can be easily confirmed by visual inspection. It is an object of the present invention to provide a filter unit having a low filter density.

[0008]

According to one aspect of the present invention, there is provided a filter unit for removing dust in a fluid, the filter unit including a dust removing mat, and disposed in the fluid. A filter, a frame that slidably holds the filter, and dust removing means that is held by the frame at a position not in contact with the fluid and that removes dust attached to the dust removing mat of the filter. It is characterized by being performed.

According to a second aspect of the present invention, there is provided a filter unit for removing dust in a fluid, comprising a dust removal mat, and a filter disposed in the fluid, and slidably holding the filter. And a dust removing means which is slidably held by the frame at a position not in contact with the fluid and removes dust attached to the dust removing mat of the filter.

According to a third aspect of the present invention, the dust removing means is a brush which comes into contact with dust attached to the dust removing mat of the filter, and a movement which moves the dust removing mat relative to the brush. Means.

According to a fourth aspect of the present invention, the dust removing means is configured to suction the dust attached to the dust removing mat of the filter, and to position the dust removing mat relative to the vacuum sucking means. It is characterized by a moving means for moving the object.

According to the first aspect of the present invention, since there is provided a dust removing means for removing dust attached to the dust removing mat of the filter at a position not in contact with the fluid, cleaning of the dust attached to the dust removing mat is provided. The removal operation can be performed outside the device, eliminating the need to stop the device and open the exterior door during the cleaning operation, making the cleaning operation easy and safe, and visually checking the condition of the filter after cleaning. It becomes possible.

According to the second aspect of the present invention, since a dust removing means for removing dust attached to the dust removing mat of the filter is provided at a position where it does not come into contact with the fluid, an operation of cleaning and removing dust attached to the dust removing mat is provided. It is not necessary to stop the device during cleaning work and open the exterior door, cleaning work is easy and safe, and it is possible to visually check the condition of the filter after cleaning. Become.

In addition, since the dust removing means is slidably held by the frame, the dust removed by the dust removing means can be automatically discharged to the outside of the filter unit. The performance is improved.

According to a third aspect of the present invention, as a preferred embodiment of the filter unit, a brush for contacting the dust removing means with dust attached to the dust removing mat of the filter, and the dust removing mat for the brush And the moving means for relatively moving the filter unit, the filter unit can have a simple configuration with commonly used components, and the manufacturing cost can be reduced. By increasing the number of brushes installed,
The dust removing effect can be further increased.

According to a fourth aspect of the present invention, as a preferred embodiment of the filter unit, the dust removing means is a vacuum suction means for sucking dust attached to a dust removing mat of the filter; Since the moving unit is configured to move the removing mat relatively, the dust does not scatter around the filter unit, and the dust can be collected more reliably.

[0017]

Next, a specific example of an embodiment of a filter unit according to the present invention will be described with reference to the drawings.

FIG. 1 is a view showing a first embodiment of a filter unit according to the present invention. This filter unit 10 comprises a filter 1, a brush unit 2, and a frame 3, and has an air cooling structure. It is used as a filter unit for information processing equipment and the like.

As shown in FIG. 1A, the filter 1
A rectangular dust removing mat (hereinafter, abbreviated as "mat") 1a for collecting dust, a pin 1b provided on a side surface for sliding the filter 1 with respect to the frame 3, and the filter 1 are moved. Lever 1 mounted on the front
c, and a case 1d for maintaining the entire shape of the filter 1.

The brush unit 2 includes a brush 2a having a bristle shape arranged linearly in a line to remove dust adhering to the mat 1a, and a dust collecting case 2b for receiving the dust removed by the brush 2a. It consists of.

The frame 3 is formed to have a size capable of accommodating the filter 1 and the brush unit 2 in the directions of arrows A and B, respectively, and has a slit-shaped filter guide 3a formed on a side surface thereof. Pin 1
b is inserted and guided, and filter 1
Is slidable.

FIG. 1B shows a state in which the filter unit 10 is assembled. In this state, the filter 1 is arranged in the flow of the cooling air containing dust, and the brush unit 2 is disposed.
Is held by the frame 3 at a position not in contact with the flow of cooling air.

In an information processing device or the like having an air cooling structure, when the device is operated for a long time, dust 4 adheres to the filter 1 of the filter unit 10 and the cooling efficiency is reduced. Hereinafter, a procedure for cleaning the filter 1 will be described.

During use of the filter unit 10, FIG.
As shown in (a), the pin 1b of the filter 1 is located at the end of the filter guide 3a of the frame 3. Here, when the operator holds the operation lever 1c with his / her hand and pulls out in the direction of arrow C, the pin 1b moves while being guided by the filter guide 3a, and the filter 1 starts to be pulled out.

As shown in FIG. 2B, when the filter 1 is further pulled out in the direction of arrow C, the mat 1a comes into contact with the brush 2a of the brush unit 2, and the dust 4 adhering to the mat 1a is removed. The filter 1 is pulled out while being pressed. At this time, the dust 4 removed from the mat 1a is collected in the dust collecting case 2b.

When the filter 1 is further pulled out, as shown in FIG. 2C, the pin 1b is connected to the filter guide 3a.
Has reached the other end, and the filter 1 can no longer be pulled out, and the drawing out of the filter 1 is completed.

Next, as shown in FIG. 2D, when the operator holds the operation lever 1c with his / her hand and pushes the filter 1 in the opposite direction (the direction of arrow D), the pin 1b is The filter 1 is moved by being guided by the guide 3a, the filter 1 starts to be pushed in, and the mat 1a and the brush 2 of the brush unit 2 are moved.
a comes into contact, and the filter 1 is pushed in while removing the residual dust 4 remaining on the mat 1a. At this time, mat 1
The dust 4 removed from a is collected in the dust collecting case 2b.

When the filter 1 is further pushed in, the pin 1b reaches the end of the filter guide 3a, and as shown in FIG.
Returning to the position (a), the filter 1 can no longer be pushed in, and the cleaning of the filter 1 is completed.

FIG. 3 is a view showing a second embodiment of the filter unit according to the present invention. The filter unit 11 comprises a filter 1, a brush unit 12, and a frame 3, and has an air cooling structure. It is used as a filter unit for information processing equipment and the like. In this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

As shown in FIG. 3A, also in this embodiment,
The filter 1 and the frame 3 in the first embodiment are used, and only the filter unit 12 is different from the brush unit 2.

The brush unit 12 has a bristle brush 12a linearly arranged in two rows for removing the dust 4 attached to the mat 1a, and a dust collecting case for receiving the dust 4 removed by the brush 12a. 12b. This embodiment is different from the first embodiment in that the bristle brushes 12a are arranged in two rows in a straight line, whereby the dust removing effect can be further increased.

FIG. 3B shows a state in which the filter unit 10 is assembled. In this state, the filter 1 is arranged in the flow of cooling air containing dust, and the brush unit 2 is mounted.
Is held by the frame 3 at a position not in contact with the flow of cooling air.

The procedure for cleaning the filter 1 is substantially the same as that in the first embodiment.
During use, the filter 1 is in the state shown in FIG. 4A, and when the operator holds the operating lever 1c with his hand and pulls it out in the direction of arrow E, the filter 1 starts to be pulled out.

As shown in FIG. 4 (b), when the filter 1 is further pulled out in the direction of arrow E, the mat 1a comes into contact with the brush 12a of the brush unit 12, and the dust 4 attached to the mat 1a is removed. The filter 1 is pulled out while the dust is being removed, and the removed dust 4 is collected in the dust collection case 12b. When the filter 1 is further pulled out, FIG.
As shown in (c), the pin 1b reaches the other end of the filter guide 3a, so that the filter 1 can no longer be pulled out, and the drawing out of the filter 1 is completed.

Next, as shown in FIG. 4 (d), when the filter 1 is pushed in the opposite direction (the direction of arrow F), the filter 1 starts to be pushed in, and the mat 1a and the brush of the brush unit 12 are pressed. The dust 4 is pushed into the filter 1 while removing the residual dust 4 remaining on the mat 1a, and the dust 4 removed from the mat 1a is removed by the dust collecting case 2b.
Collected in. If you push the filter 1 further,
Returning to the position of FIG. 4A, the cleaning of the filter 1 is completed.

FIG. 5 is a view showing a third embodiment of the filter unit according to the present invention. The filter unit 20 comprises a filter 21, a brush unit 22, and a frame 23.

As shown in FIG. 5A, the filter 21
Is a rectangular dust removing mat (hereinafter abbreviated as “mat”) 21 a for collecting dust, and a pin 21 erected on a side surface for sliding the filter 21 with respect to the frame 23.
b, an operation lever 21c mounted on the front surface for moving the filter 21, a case 21d for maintaining the overall shape of the filter 21, and a plate 21e disposed near the operation lever 21c for pushing the brush unit 22 in.
And a plate 21 for sliding the brush unit 22.
e is composed of springs 21f fixed to two places on the left and right sides.

The brush unit 22 includes a bristle brush 22a linearly arranged and a frame-like brush bracket 22c for removing dust adhering to the mat 21a.
And a spring 22d provided on the left and right to fix the position of the brush unit 22 with respect to the frame 23.

The frame 23 is formed in such a size that the brush unit 22 can be moved in the direction of arrow G and the one mounted on the filter 21 can be accommodated in the direction of arrow H. Frame 23
A filter guide 23a in the form of a slit is formed on the side surface of the filter 23. A pin 21b of the filter 21 is inserted into and guided by the filter guide 23a so that the filter 21 can slide with respect to the frame 23. The frame 23 has a square hole 23b for fixing the brush unit 22, and stoppers 23c and 23 for restricting the movement of the brush unit 22.
d.

In assembling the filter unit 20, as shown in FIG. 5A, the entire brush unit 22 is moved in the direction of arrow G so that the brush bracket 22c of the brush unit 22 is inserted through the filter 21.
After the filter 21 is moved to the vicinity of the plate 21e of the filter 21 and the filter 21 with the brush unit 22 is moved in the direction of the arrow H and the pin 21b of the filter 21 is inserted into the filter guide 23a of the frame 23, as shown in FIG. It is in an assembled state. Then, in this state, the filter 21 is arranged in the flow of the cooling air containing dust, and the brush unit 22 is held by the frame 23 at a position not in contact with the flow of the cooling air.

Next, a procedure for cleaning the filter 21 of the filter unit 20 having the above configuration will be described.

While the filter unit 10 is in use, FIG.
As shown in (a), the pin 21b of the filter 21 is located at the end of the filter guide 23a of the frame 23. Here, when the operator holds the operating lever 21c with his hand and pulls out in the direction of arrow I, the pin 21b
The filter 21 moves by being guided by 3a, and the filter 21 starts to be pulled out.

When the filter 21 is further pulled out,
The spring 21f comes into contact with the brush bracket 22c, and pushes out the brush unit 22. When the filter 21 is further pulled out, as shown in FIG.
c comes into contact with the stopper 23c, and the brush unit 22 cannot be pulled out. At this time, as shown in FIGS. 6B and 8, the protrusion of the spring 22 d enters the square hole 23 b and the brush unit 22 is fixed to the frame 23.

When the filter 21 is further pulled out,
As shown in FIGS. 6C and 9, the brush unit 22
Cannot be pushed out by the stopper 23c.
The protrusion of f is deformed, passes through the gap of the brush bracket 22c, the filter is pulled out in the direction of arrow I, the mat 21a and the brush 22a come into contact, and the filter 21 is removed while removing the dust 4 attached to the mat 21a. Will be drawn out.

When the filter 21 is further pulled out,
As shown in FIG. 7A, the pin 21b and the other end of the filter guide 23a come into contact with each other, so that the filter 21 can no longer be pulled out, and the drawing out of the filter 21 is completed.

Next, as shown in FIG. 7B, when the operator holds the operation lever 21c with his / her hand and pushes the filter 21 in the opposite direction (the direction of arrow J), the filter 21 It starts to be pushed in while being guided by 21b and the filter guide 23a. At this time, the brush unit 22
Does not move because it is fixed by the spring 22d and the square hole 23b. When the filter 21 is further pushed in from this state, the mat 21a and the brush 22a come into contact, and the mat 2
The filter 21 is pushed in while removing the residual dust 4 remaining in 1a.

When the filter 21 is further pushed in,
As shown in FIGS. 7C, 8 and 9, the spring 21f comes into contact with the brush bracket 22 so that the protrusion of the spring 21f is deformed and passes through the gap between the brush bracket 22c. Contact, and the brush unit 22 is pushed in conjunction with it. At this time, the protrusion of the spring 22d is released from the square hole 23b.

When the filter 21 is further pushed in,
As shown in FIG. 6A, the pin 21b comes into contact with the filter guide 23a, the filter 21 can no longer be pushed in, and the filter 21 returns to its original position. The brush unit 22 includes a brush bracket 22c and a stopper 2.
The movement stops because it comes into contact with 3d.

In the third embodiment, the brushes 22a of the brush unit 22 are linearly arranged in a line. However, in order to further increase the dust removing effect, the brushes 22a are linearly arranged in the same manner as in the second embodiment. It is also possible to arrange them in rows.

Next, an example of use of the filter unit 10 (11, 20) having the above configuration will be described with reference to FIG.

FIG. 10 shows an air cooling device.
Reference numeral 0 denotes a leveler 38a for opening a gap between a floor (not shown) and the bottom surface 38d of the housing 38, an intake port 38b as an intake port for cooling outside air, and an exhaust port 38c as a discharge port for inside air in the apparatus. And a housing 3 for mounting a unit (not shown).
8 and the filter unit 10 (11, 2
0) and a fan 39 forcibly creating a flow of air.

Next, the operation of the air cooling device 30 having the above configuration will be described.

First, as shown in FIG. 10A, a gap is opened between the floor and the bottom face 38d of the housing 38 by the leveler 38a, and the gap is formed in the gap.
0 (11, 20) is implemented. At this time, since the intake port 38b is mounted so as to entirely cover the filter unit 10 (11, 20), as shown in FIG.
Cooling air that has passed through (11, 20) and purified of dust can be sucked into the device.

When the apparatus is operated for a long time, dust 4 adheres to the filter 1a and the like of the filter unit 10 (11, 20), and the cooling efficiency is reduced. At this time, the filter unit 10 according to the present invention is used.
Since (11, 20) are mounted outside the housing 38,
As shown in FIG. 11, the cleaning operation can be performed by a simple operation such as pulling out and returning the filter in the direction of arrow K without opening the housing 38.

As shown in FIG. 12, when the filter unit 20 is used, the dust 4 can be automatically discharged to the outside of the filter unit 20.

In the above-described embodiment, the brush is used as the dust removing means for removing the dust attached to the filter mat, but the dust removing effect can be improved by increasing the number of brushes arranged. . Also,
The dust removing means is not limited to a brush, but may be a suction device using a vacuum source or the like.

[0057]

As described above, according to the first aspect of the present invention, it is possible to perform the cleaning and removing operation of the dust adhered to the dust removing mat outside the apparatus, and to stop the apparatus during the cleaning operation. Thus, it is possible to provide a filter unit which does not need to open the exterior door, makes cleaning work easy and safe, and allows the user to visually check the state of the filter after cleaning.

According to the second aspect of the present invention, it is possible to perform a cleaning and removing operation of dust adhering to the dust removing mat outside the apparatus, and it is necessary to stop the apparatus and open the exterior door during the cleaning operation. Cleaning is easy and safe, the condition of the filter after cleaning can be visually checked, and the removed dust can be automatically discharged to the outside of the filter unit. Units can be provided.

According to the third aspect of the present invention, in addition to the above-described effects, it is possible to provide a filter unit which has a simple configuration using commonly used components and has a low manufacturing cost.

According to the fourth aspect of the present invention, in addition to the above effects, it is possible to provide a filter unit capable of collecting dust more reliably without scattering dust near the filter unit. .

[Brief description of the drawings]

FIG. 1 is a view showing a first embodiment of a filter unit according to the present invention, wherein (a) is an exploded perspective view and (b) is an assembled perspective view.

FIG. 2 is an operation explanatory diagram of the filter unit of FIG. 1;

3A and 3B are views showing a second embodiment of the filter unit according to the present invention, wherein FIG. 3A is an exploded perspective view, and FIG. 3B is an assembled perspective view.

FIG. 4 is an operation explanatory view of the filter unit of FIG. 3;

5A and 5B are views showing a third embodiment of the filter unit according to the present invention, wherein FIG. 5A is an exploded perspective view, and FIG. 5B is an assembled perspective view.

FIG. 6 is an operation explanatory diagram of the filter unit of FIG. 5;

FIG. 7 is an operation explanatory diagram of the filter unit of FIG. 5;

8A and 8B are explanatory views of the operation of a spring used in the filter unit of FIG. 5 and mounted on the brush unit, wherein FIG.
Is a cross-sectional view taken along line NN in FIGS. 6 and 7,
(B) is a side view of (a).

9A and 9B are explanatory diagrams of the operation of a spring used in the filter unit of FIG. 5 and mounted on the filter, wherein FIG.
7 is a cross-sectional view taken along line MM in FIG. 7, and FIG. 8B is a side view of FIG.

FIGS. 10A and 10B are views showing an air cooling device as an example of use of the filter unit according to the present invention, wherein FIG. 10A is an exploded perspective view, and FIG.

FIG. 11 is an operation explanatory view of the filter unit of FIG. 10;

FIG. 12 is an operation explanatory view of the filter unit of FIG. 10;

FIG. 13 is a perspective view showing an example of a dust removing structure used in a conventional air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filter 1a Dust removal mat 1b Pin 1c Operation lever 1d Case 2 Brush unit 2a Brush 2b Dust collecting case 3 Frame 3a Filter guide 4 Dust 10 Filter unit 11 Filter unit 12 Brush unit 12a Brush 12b Dust collecting case 20 Filter unit 21 Filter 21a Dust removal mat 21b Pin 21c Operation lever 21d Case 21e Plate 21f Spring 22 Brush unit 22a Brush 22c Brush bracket 22d Spring 23 Frame 23a Filter guide 23b Square hole 23c, 23d Stopper 30 Air cooling device 38 Housing 38a Leveler 38b Inlet 38c Exhaust 38d bottom 39 fan

Claims (4)

[Claims] 1. A filter unit for removing dust in a fluid, comprising a dust removal mat, a filter disposed in the fluid, a frame for slidably holding the filter, and a fluid. And a dust removing unit which is held by the frame at a position where the dust removing mat does not contact the dust removing unit and removes dust attached to the dust removing mat of the filter. 2. A filter unit for removing dust in a fluid, comprising a dust removal mat, a filter arranged in the fluid, a frame for slidably holding the filter, and a fluid. And a dust removing unit that is slidably held by the frame at a position where the dust removing mat does not contact the dust removing unit and removes dust attached to the dust removing mat of the filter. 3. A brush, wherein said dust removing means is in contact with dust attached to said dust removing mat of said filter;
3. A moving means for moving the dust removing mat relative to the brush.
Filter unit as described. 4. The dust removing means comprises: vacuum suction means for sucking dust adhered to the dust removing mat of the filter; and moving means for moving the dust removing mat relatively to the vacuum sucking means. 3. The filter unit according to claim 1, wherein: