JP2006159103A - Air purification unit - Google Patents

Abstract

An object of the present invention is to provide an air purification unit used in an air conditioner that can visually confirm that the filter unit is correctly inserted when the filter unit is inserted into a holding unit.
A holding unit has a configuration in which a lid portion and a receiving portion are overlapped, and the lid portion forms a lattice as an air inlet, and the receiving portion is overlapped with the lattice of the lid portion. The filter frame 5 has a grid 12 that is shaped to overlap with the grid 8 of the lid part 2 of the holding unit 4 and the grid 9 of the receiving part 3 so that the filter unit 7 is inserted in the correct position. Thus, an air purification unit capable of visually confirming that the operation has been performed is obtained.
[Selection] Figure 1

Description

  The present invention relates to an air purification unit that is provided in an air flow path of an air conditioner or the like, removes dust contained in air to be air conditioned, and purifies air.

  Conventionally, as an example of this type of air purification unit, an electric dust collection unit including a holding unit and a dust collection unit is known (see, for example, Patent Document 1).

  The electric dust collection unit will be described below with reference to FIG.

  As shown in the figure, the dust collection unit 101 and the holding unit 108 have differently shaped lattices, and the dust collection unit 101 includes an intake grill portion 102, a filter frame 106, and a filter 105, and the holding unit 108 includes a filter cover 107. The dust collection unit 101 is attached to the holding unit 108 to constitute an air purification unit.

  Moreover, an electrostatic precipitator provided with sound wave generation means is known as an example of a conventional air purification unit (see, for example, Patent Document 2).

  The electric dust collection unit will be described below with reference to FIG.

  As shown in the figure, the sound wave generating means 113 is provided on the side surface portion 112 of the dust collection unit box 111 containing the discharge electrode 110, and the dust collection filter 114 is provided on the most downstream side of the dust collection unit 115 in the air blowing direction. The counter electrode 116 is grounded.

  Further, a filter frame provided with a filter fixing means is known as an example of a conventional filter frame (see, for example, Patent Document 3).

  Hereinafter, the filter frame will be described with reference to FIG.

As shown in the figure, the frame 121 has a frame 118 that surrounds the side edge of the filter member 117, a filter support 119 that supports one end surface of the filter member, and a cross section formed on the filter member side of the frame. It comprises a substantially U-shaped filter fitting part 120 and holds the filter member 117 at a predetermined position.
JP 2003-10731 A ([0014], FIG. 1, FIG. 3, FIG. 11) Japanese Unexamined Patent Publication No. 2003-103196 ([0016], FIG. 2) JP-A-7-77352 ([0013], FIGS. 1 to 4)

  In such a conventional electrostatic dust collecting unit, there is a problem that the mounting state before and after the filter unit is inserted into the holding unit cannot be sufficiently visually confirmed, and the mounting position when the filter unit is inserted and after the insertion. Is required to be visually confirmed.

  In addition, other conventional electric collectors collect dust by accelerating the agglomeration effect by irradiating sound waves on the front region of the filter, but there is a problem that sound waves are emitted to the outside, and the sound waves are emitted to the outside. There is a demand for an air purification unit with a structure that is difficult to escape.

  Also, in the conventional filter frame, the height of the external rib surrounding the filter side edge is constant, so there is a problem that the tip side is caught and difficult to insert when inserting the filter frame, and the filter frame has a structure that improves insertability Is required.

  Further, there is a problem that the filter frame resonates with the operation of the air conditioner to generate noise, and there is a demand for a reliable mounting structure in which the filter frame does not resonate.

  The present invention solves such a conventional problem, and when the filter unit is inserted and after the insertion, the positional relationship before and after the insertion can be visually confirmed, and the sound wave is prevented from escaping outside. An object of the present invention is to provide an air purification unit that can improve the purification efficiency, improve the operability when the filter unit is attached / detached, and can be reliably attached / detached without generating noise due to resonance.

  In order to achieve the above object, the air purifying unit of the present invention is detachable from a horizontally long holding unit in which a lid portion and a receiving portion having orthogonal grids are overlapped and an insertion port provided in the holding unit. The filter unit is housed, and the filter unit includes a see-through honeycomb filter and a filter frame including a lattice supporting the honeycomb filter, and all or part of the lattice of the lid and the receiving portion of the holding unit. In addition, the filter frame has a configuration in which the lattice overlaps.

  By this means, when the filter unit is inserted and after the insertion, the positional relationship before and after the insertion can be visually confirmed, and an air purification unit can be obtained.

  Another means is that an ultrasonic unit for supplying ultrasonic waves is provided upstream of the honeycomb filter, and the cross section of the lid portion of the holding unit has a curved shape.

  By this means, it is possible to obtain an air purification unit capable of improving the air purification efficiency by preventing sound waves from escaping to the outside.

  According to another means, the receiving unit of the holding unit includes a slide surface that supports the filter frame, and the lid of the holding unit has a space between the honeycomb filter housed in the filter frame.

  By this means, an air purification unit that can improve the operability when the filter unit is attached and detached can be obtained.

  In addition, the other means is to increase the depth dimension of the lid portion relative to the depth dimension of the receiving portion of the holding unit, so that the insertion opening of the filter unit faces obliquely downward and the opening height of the insertion opening is The structure is large.

  By this means, an air purification unit that can improve the operability when the filter unit is attached and detached can be obtained.

  Another means is that the filter frame is provided with an outer peripheral rib surrounding the honeycomb filter and a claw for fixing both ends of the honeycomb filter, and the height of the outer peripheral rib on the front end side at the tip of the claw is lowered.

  By this means, an air purification unit that can improve the operability when the filter unit is attached and detached can be obtained.

  Further, the other means is configured such that inclined ribs corresponding to the inclined insertion ports are provided in the receiving portion of the holding unit.

  By this means, an air purification unit that can improve the operability when the filter unit is attached and detached can be obtained.

  Further, another means is that the inclined rib of the receiving portion of the holding unit has a sharp inclined rib at the distal end portion on the back side, and the distal end portion of the filter unit is placed between the inclined rib provided at the distal end of the lid portion. It is set as the structure which pinched | interposed.

  By this means, the operability at the time of attaching / detaching the filter unit can be improved, and an air purification unit that can be attached / detached reliably without generating noise due to resonance is obtained.

  Further, the other means is configured such that a convex portion is formed at a lower portion on the handle side of the filter frame, and the filter unit including the convex portion is sandwiched between the receiving portion and the lid portion of the holding unit.

  By this means, the operability at the time of attaching / detaching the filter unit can be improved, and an air purification unit that can be attached / detached reliably without generating noise due to resonance is obtained.

  ADVANTAGE OF THE INVENTION According to this invention, it can confirm easily that the filter unit was inserted completely visually and can provide the air purification unit which has the effect which suppresses the increase in the wind resistance by a grating | lattice.

  In addition, it is possible to provide an air purification unit having an effect of improving the dust collection performance by enhancing the effect of agglomerating dust.

  In addition, the operability during and during the insertion of the filter unit can be improved.

  Moreover, the play of the honeycomb filter due to the vibration of the air purification unit can be suppressed.

  The invention according to claim 1 of the present invention is a horizontally long holding unit in which a lid portion and a receiving portion having orthogonal grids are overlapped, and a filter that is detachably stored from an insertion port provided in the holding unit. The filter unit comprises a filter frame having a see-through honeycomb filter and a grid that supports the honeycomb filter, and the filter unit is provided on all or part of the grid of the lid and the receiving unit of the holding unit. The grid of the frame overlaps, and when the filter unit is inserted from the insertion port of the holding unit, the filter frame grid can be seen through the honeycomb filter housed in the filter unit. Can be inserted while aligning the position, and then the horizontal frame of the filter frame By aligning the horizontal grid lifting unit, an effect that can be visually confirmed that can be reliably accommodated.

  Further, the invention according to claim 2 is provided with an ultrasonic unit for supplying ultrasonic waves upstream of the honeycomb filter, and a cross section of the lid portion of the holding unit is curved, and is transmitted from the ultrasonic unit. The ultrasonic waves are reflected inside the curved lid portion and collected inside while changing the traveling angle, and have the effect of increasing the agglomeration force of the air dust.

  According to a third aspect of the present invention, the receiving portion of the holding unit has a slide surface that supports the filter frame, and the lid portion of the holding unit has a space between the honeycomb filter housed in the filter frame. The filter frame can be moved while in contact with the sliding surface of the receiving part, and since the space part of the lid part is provided in front of the honeycomb filter housed in the filter frame, the surface of the honeycomb filter can be When it is pulled out without being damaged, it has the effect that it can be handled with the attached dust held.

  In the invention according to claim 4, the depth of the lid is made longer than the depth of the receiving portion of the holding unit, so that the insertion port of the filter unit is directed obliquely downward and the opening of the insertion port is opened. The height is large and the insertion port of the holding unit is widened, so the operability when inserting the filter unit is improved and the appearance from the front of the holding unit does not change and the design is not impaired. Have

  In the invention according to claim 5, the filter frame is provided with an outer peripheral rib surrounding the honeycomb filter and a claw for fixing both ends of the honeycomb filter, and the height of the outer peripheral rib on the tip side at the tip is lower than the claw. Thus, the outer peripheral rib on the front end side of the filter frame does not contact the insertion port of the holding unit when the filter unit is inserted, and the operability during insertion can be improved.

  Further, the invention according to claim 6 is provided such that the receiving portion of the holding unit is provided with an inclined rib corresponding to the inclined insertion port, and the filter unit is arranged in a direction in accordance with the insertion port of the holding unit obliquely downward. In addition to being able to be inserted, the honeycomb filter can be inclined and arranged with respect to the wind direction, so that the area of collision of floating dust with the filter medium can be increased, and the dust collection efficiency is increased.

  According to the seventh aspect of the present invention, the inclined rib of the receiving portion of the holding unit has a steep inclined rib at the distal end portion on the back side, and between the distal end rib provided at the distal end of the lid portion, It has a configuration in which the tip is sandwiched, and has an effect of securely fixing the tip of the filter unit and suppressing the detachment and displacement of the honeycomb filter due to vibration.

  Further, the invention according to claim 8 is configured such that a convex portion is formed at a lower portion on the handle side of the filter frame, and the filter unit including the convex portion is sandwiched between the receiving portion and the lid portion of the holding unit. When the filter unit is almost stowed in the holding unit, the convex part runs over the receiving part of the holding unit, so that it can be felt that the stowage is completed and the honeycomb filter is securely fixed. It has the effect of preventing the filter unit from rattling or coming off due to vibration.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIGS. 1 to 6, the holding unit 4 includes a lid portion 2 having a lattice 8 whose section is curved in a convex shape, and a receiving portion 3 having a plate-like lattice 9. The electrical component storage part 10 is formed in this. The lattice 9 of the receiving portion 3 has a shape that overlaps with the lattice 8 of the lid portion 2. The filter unit 7 detachably provided on the holding unit 4 has a lattice 12 that overlaps at least a part of the lattice 8 of the lid portion 2 and the lattice 9 of the receiving portion 3 after the filter unit 7 is inserted. The filter frame 5 has a honeycomb shape and the honeycomb filter 6 has a honeycomb shape and allows the lattice shape of the filter frame 5 to be confirmed through the ventilation holes 15. The filter unit 7 can be detachably stored in the space portion 26 through the insertion port 16 of the holding unit 4.

  The ultrasonic unit 11 is housed in an electrical component housing section 10 provided at one end of the holding unit 4, and the lid section 2 is gently curved so as to surround the honeycomb filter 6 in a dome shape.

  In addition, the depth dimension difference between the lid portion 2 and the receiving portion 3 is provided so that the insertion port 16 of the filter unit 7 is opened in the inclined direction on the front surface of the holding unit 4 and the opening height of the insertion port 16 is large. It is said.

  In the above configuration, when the filter unit 7 is attached to the holding unit 4 attached to an air conditioner (not shown), the ultrasonic wave is supplied from the ultrasonic unit 11 provided on the holding unit 4 onto the honeycomb filter 6. The ultrasonic wave is reflected inward by the dome-shaped curved wall 21 and is difficult to escape to the outside, and the effect of agglomerating dust contained in the air is increased, and the dust collection performance can be improved.

  Next, when the filter unit 7 is attached to the holding unit 4, as shown in FIG. 4, the vertical lattice 12a of the filter frame 5 is easily adjusted from the insertion port 16 so as to be aligned with the vertical lattice 8a of the holding unit 4. Since it can be inserted, it serves as a guideline when the filter unit 7 is inserted. Further, it can be easily confirmed visually that the filter unit 7 is completely inserted when the horizontally long lattice 12b of the filter frame 5 is overlapped with the horizontally long lattice 8b of the holding unit 4. Moreover, since the resistance of the wind can be suppressed by superposition of the respective lattices, a decrease in the air volume can be prevented and the dust collection performance can be improved.

  Further, the lid portion 2 has a space portion 26 between the filter unit 7 and the filter frame 5 can be inserted in contact with the slide surface 27 of the receiving portion 3, so that the surface of the honeycomb filter 6 is not damaged. The filter performance can be maintained.

  In this embodiment, a honeycomb filter is used, but a corrugated filter having air holes and allowing the lattice shape on the downstream side of the filter to be visually observed may be used.

(Embodiment 2)
As shown in FIG. 7 to FIG. 9, the insertion dimension of the filter unit 7 is reduced by shortening the depth dimension by a gap 25 with respect to the lid 2 so that the handle 5 a side of the receiving part 3 of the holding unit is inserted into the back. 16 is opened obliquely downward to increase the opening area. Further, the filter frame 5 is provided with an outer rib 14 surrounding the honeycomb filter 6 and a claw 13 for fixing both ends of the honeycomb filter 6, and the height of the outer peripheral rib 14 a on the front end side of the claw 13 is lowered. Further, the receiving unit 3 of the holding unit 4 is provided with an inclined rib 17 so that the filter unit 7 inserted from the insertion port 16 can easily enter along the inclined rib 17 from obliquely below. Further, the inclined rib 17 of the receiving portion 3 is provided with a steep inclined rib 18 at the tip portion, so that the filter unit 7 is sandwiched between the tip rib 20 provided at the tip portion of the lid portion 2. Further, the convex portion 22 is provided at the lower portion of the filter frame 5 on the handle 5a side, and when the filter unit 7 is inserted, the convex portion 22 rides on the inclined rib 17 of the receiving portion 3 and moves upward, so that the lid portion 2 It is set as the structure pinched | interposed between the rear-end rib ribs 19.

  In the above configuration, the operability when the filter unit 7 is inserted can be improved by increasing the height direction of the insertion port 16 of the filter unit 7 and increasing the opening area.

  Further, by lowering the height of the distal outer peripheral rib 14a on the distal end side than the claw 13 of the filter frame 5, the distal outer peripheral rib 14a on the distal end side of the filter frame 5 contacts the insertion port 16 of the filter unit 7 during insertion. By making it difficult to perform, operability at the time of insertion can be improved.

  In addition, since the filter unit 7 can be inserted obliquely from below along the inclined rib 17 provided in the receiving portion 3 of the holding unit 4, the filter unit 7 can be accommodated in the insertion direction from the wide insertion port 16. The operability of inserting and holding can be improved. Furthermore, since the honeycomb filter 6 can be inclined with respect to the wind direction, the area where dust in the air collides with the filter medium can be increased, and the dust collection efficiency can be increased.

  Further, since the inclined rib 17 of the receiving portion 3 of the holding unit 4 is formed with a steep inclined rib 18 whose inclination angle is increased at the distal end, the filter unit 7 is provided at the distal end of the lid portion 2. In addition to being securely fixed by being sandwiched between the leading end ribs 20, it is possible to suppress detachment and displacement due to vibration.

  Further, when the filter unit 7 is inserted, the convex portion 22 provided at the lower part on the handle 5a side is moved upward on the inclined rib 17 of the receiving portion 3, so that it can be realized that the storing operation is completed, Since it is sandwiched between the inclined rib 17 and the rear end rib 19 of the lid portion 2, it is possible to secure the filter unit 7 and prevent rattling and detachment due to vibration.

  In the present embodiment, the heights of the front end side outer peripheral ribs 14a of the filter frame 5 are all lowered, but only the both end sides of the front end side outer peripheral ribs 14a are lowered to protect the honeycomb filter 6. May be.

  Needless to say, the claw 13 provided on the filter frame 5 for hooking the honeycomb filter 6 can provide the same effect even if provided on the front and back instead of the left and right.

  The filter unit can be attached and detached by forming a drawer-type filter unit that is installed in other air-conditioning equipment such as a ventilation fan, and superimposing the lattice shape that becomes the opening of the filter frame with the lattice shape that becomes the air supply port of the air-conditioning equipment It can also be applied to applications that reliably perform visual inspection.

1 is a front view of an air purification unit according to Embodiment 1 of the present invention. (B) Front view of holding unit of air purification unit (b) Front view of filter unit of air purification unit Rear view of holding unit of air purification unit Perspective view of the air purification unit before insertion of the filter unit Front view of the filter frame of the air purification unit Front view of honeycomb filter of the same air purification unit Perspective view of main part of filter frame of air purification unit Sectional drawing of the air purification unit of Embodiment 2 of this invention Partial perspective view of the air purification unit before insertion of the filter unit (A) Cross-sectional view of a filter unit of a conventional air purification unit (b) Front view of the filter unit (c) Front view of the holding unit An exploded perspective view of another conventional air purification unit An exploded perspective view of a filter unit of another conventional air purification unit

Explanation of symbols

2 Lid 3 Receiving unit 4 Holding unit 5 Filter frame 6 Honeycomb filter 7 Filter unit 8 Grid 8a Vertical grid (lattice)
8b Horizontally long lattice (lattice)
9 lattice 9a vertical lattice (lattice)
9b Horizontally long lattice (lattice)
11 Ultrasonic unit 12 Grid 12a Vertical grid (lattice)
12b Horizontally long lattice (lattice)
13 claw 14 outer peripheral rib 14a front end side outer peripheral rib 16 insertion slot 17 inclined rib 18 steep inclined rib 20 front end rib 22 convex portion 26 space portion 27 slide surface

Claims (8)

It has a horizontally long holding unit with a lid and a receiving part with orthogonal grids and a filter unit that is detachably housed from an insertion port provided in this holding unit, and this filter unit can be seen through An air purification unit comprising a honeycomb frame and a filter frame having a lattice supporting the honeycomb filter, wherein the lattice of the filter frame overlaps all or part of the lattice of the lid portion and the receiving portion of the holding unit . The air purification unit according to claim 1, wherein an ultrasonic unit for supplying ultrasonic waves is provided on the upstream side of the honeycomb filter, and the cross section of the lid of the holding unit is curved. 2. The air purification unit according to claim 1, wherein the receiving portion of the holding unit includes a slide surface that supports the filter frame, and the lid portion of the holding unit has a space between the honeycomb filter housed in the filter frame. . 2. The height of the insertion opening of the filter unit is increased while the insertion opening of the filter unit is directed obliquely downward by increasing the depth of the lid with respect to the depth of the receiving portion of the holding unit. Air purification unit. 5. The air purification unit according to claim 3, wherein the filter frame is provided with an outer peripheral rib surrounding the honeycomb filter and a claw for fixing both ends of the honeycomb filter, and the height of the outer peripheral rib on the front end side at the front end is lower than the claw. The air purification unit according to claim 4, wherein the receiving portion of the holding unit is provided with an inclined rib corresponding to the inclined insertion port. The inclined rib of the receiving portion of the holding unit has a steep inclined rib at the tip portion on the back side, and the tip portion of the filter unit is sandwiched between the tip rib provided at the tip of the lid portion. The air purification unit described. The air purification unit according to claim 6, wherein a convex portion is formed at a lower portion on the handle side of the filter frame, and the filter unit including the convex portion is sandwiched between the receiving portion and the lid portion of the holding unit.

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