EP3276277B1 - Dispositif de nettoyage de filtre pour un climatiseur et climatiseur équipé dudit dispositif de nettoyage de filtre - Google Patents
Dispositif de nettoyage de filtre pour un climatiseur et climatiseur équipé dudit dispositif de nettoyage de filtre Download PDFInfo
- Publication number
- EP3276277B1 EP3276277B1 EP17155600.4A EP17155600A EP3276277B1 EP 3276277 B1 EP3276277 B1 EP 3276277B1 EP 17155600 A EP17155600 A EP 17155600A EP 3276277 B1 EP3276277 B1 EP 3276277B1
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- EP
- European Patent Office
- Prior art keywords
- brush
- filter
- comb shaped
- shaped member
- cleaning device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004140 cleaning Methods 0.000 title claims description 160
- 239000000428 dust Substances 0.000 claims description 92
- 239000013618 particulate matter Substances 0.000 claims description 66
- 238000000926 separation method Methods 0.000 claims description 31
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 description 9
- 230000001143 conditioned effect Effects 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 6
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- 230000000717 retained effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
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- 230000000007 visual effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/90—Cleaning of purification apparatus
Definitions
- the present invention relates to filter cleaning devices for air conditioners, particularly so-called duct-type air conditioners and to air-conditioners having such filter cleaning devices.
- Air conditioners are common in different buildings, particularly in commercial premises such as offices and hotels. In those premises often air conditioners of the so-called duct-type are employed.
- Duct-type air conditioners are understood as air conditioners of which the indoor unit is connected to an air ducting hidden behind a false ceiling or a false wall. In many cases, also the indoor unit is completely or partly hidden behind the false ceiling or the false wall. An example of such an air conditioner is shown in figure 1 .
- Such duct-type air conditioners 1 generally comprise air ducting 6, 7 located behind a false ceiling U or a false wall.
- One air ducting 6 leads to an exit grating 8 or exit terminal in a space to be conditioned such as an office, a corridor, a meeting room or a hotel room.
- Another air ducting 7 leads to an inlet grating 9 or inlet terminal which may either be located within the space to be conditioned or outside that space.
- the air ducting 7 may alternatively be connected to a ducting network supplying air centrally to a plurality of indoor units.
- the air conditioner 1 has an indoor unit comprising a casing having an inlet 2 to which the air ducting 7 is connected and an outlet 3 to which the air ducting 6 is connected.
- a heat exchanger 4 is located within the casing downstream of the inlet 2 and downstream of one or more fans 5. Yet, the heat exchanger 4 may also be located upstream of the fan/-s 5.
- a filter 12 having opposite filter surfaces 13, 14 is disposed upstream of the heat exchanger 4 and in many cases located at or near the inlet 2.
- the filter 12 has the purpose of removing particulate matter such as dust and fibers from the air flow to avoid the parts of the air conditioner, particularly the heat exchanger 4, from being soiled and clogged.
- the filter 12 requires regular cleaning to avoid clogging of the filter. Such clogging of the filter may result in an increased resistance to the air flow which requires a higher load on the fan/-s. Hence, clogging of the filter can reduce the efficiency of the air conditioner.
- filter cleaning devices which are able to automatically clean the filter.
- One system uses a suction force for cleaning the filter, wherein a suction device is communicated with a suction nozzle moving along the filter surface, whereby the particulate matter adhering to the filter surface is removed by the suction force applied via the suction nozzle.
- Two examples of those devices are disclosed in WO 2007/040276 A1 and WO 2016/009351 A1 .
- these devices are, on the one hand, perceived to be relatively complicated and hence expensive and, on the other hand, perceived to either not sufficiently remove the particulate matter or to require a relatively high suction force which may lead to damaging of the filter.
- filter cleaning devices have been proposed using a mechanical cleaning member, such as a brush.
- a mechanical cleaning member such as a brush.
- the particulate matter removed from the filter by the brush is collected and retained in a dust box.
- One type of those filter cleaning devices moves the filter along a fixed mechanical cleaning member for removing the particulate matter.
- Those devices however require a specific configuration of the filter, such as having a continuous belt shape or a large space into which the filter is moved before being returned to its original position.
- EP 2 119 979 A1 discloses an example of such device. This device particularly employs a rotatable brush.
- EP 211-9979 A1 suggests a comb shaped member engaged with the brush and particularly its bristles scrapping off the adhering particulate matter for transfer to a dust box.
- JP 2013 053846 A discloses an indoor equipment unit and an air conditioner, configured to appropriately inform the user of the time for cleaning the indoor equipment unit including a dust box.
- the indoor equipment unit includes an air filter for collecting dust that flows in together with indoor air through an intake part into a casing, an indoor fan for sucking the indoor air through the intake part into the casing, a dust removing part of removing the dust adhering to the air filter, a driving part for moving the dust removing part along the air filter, and a determination part for determining the cleaning time of the dust removing part on the basis of the current value supplied to the driving part or a driving time when the dust removing part removes dust from the air filter while moving.
- the inventors considered the use of a brush rotated by a motor in opposite directions. Yet, it turned out that cleaning or removing of particulate matter adhering to the brush or its bristles by one comb shaped member is not sufficient when the brush rotates in opposite directions.
- a filter cleaning device having a brush rotated by a motor in opposite directions and a corresponding air conditioner which are capable of improving the removal of particulate matter adhering to the brush.
- a filter cleaning device having the features of claim 1 and an air conditioner having such filter cleaning device as defined in claim 14 are suggested.
- the filter cleaning device for an air conditioner comprises a filter to be passed through by an air flow and having a filter surface.
- the filter surface defines a width and a length of the filter.
- the filter may have two filter surfaces on opposite sides of the filter in the direction of the air flow.
- the filter can be flat and/or longitudinal.
- the filter can in principle be of any kind as long as it is configured to remove particulate matter, particularly dust and fibers, from the air flow flowing through the filter, and to be used in combination with an air conditioner.
- the filter can comprise a frame holding a mesh made of for example plastic material or metallic material.
- the filter cleaning device comprises a brush as a cleaning member contactable with the filter surface for removing particulate matter from the filter surface, wherein the brush has a cylindrical shape (is substantially cylindrical).
- the brush is preferably rotatably mounted so as to be continuously rotatable about a cylinder axis (the cylinder axis of the cylinder).
- continuously rotatable is to be understood in that the brush can be rotated clockwise and/or counterclockwise without any abutment or limitation of the rotation angle.
- the filter cleaning device comprises a motor configured to rotate the brush in opposite directions.
- the motor may be an electric motor, particularly a stepping motor.
- the filter cleaning device comprises a first comb shaped member engaged with the brush.
- the comb shaped members are to be understood as members having a plurality of teeth extending from a body. Adjacent teeth are separated by a recess.
- the comb shaped members may be configured as disclosed in EP 2 119 979 A1 the content of which is incorporated herein by reference.
- the first and second comb shaped members may be formed integral and being connected by a common comb body.
- the first and second comb shaped members each have a length direction parallel to the axis of rotation of the brush and a width direction. The width direction is perpendicular to the length direction and parallel to the axis of rotation of the brush.
- the first comb shaped member and the second comb shaped member are inclined away from each other in a cross-sectional view perpendicular to the axis of rotation of the brush.
- the first and second comb shaped members are angled so that their width directions intersect outside the diameter of the brush.
- the projection of the width direction of the first comb shaped member and the projection of the width direction of the second comb shaped member intersect outside the diameter of the brush.
- the first comb shaped member and the second comb shaped member may be disposed symmetrically in a cross-sectional view perpendicular to the axis of rotation of the brush with respect to a line perpendicularly intersecting with the axis of rotation of the brush.
- the projection of the width direction of the first comb shaped member and the projection of the width direction of the second comb shaped member intersect on said line.
- a filter cleaning device which enables sufficient cleaning of the brush to remove particulate matter adhering to the brush even when the brush rotates in opposite directions.
- the first comb shaped member is configured to remove particulate matter from the brush when the brush is rotating in a first direction and the second comb shaped member is configured to remove particulate matter from the brush when the brush is rotating in a second direction opposite to the first direction.
- the first comb shaped member is angled with its width direction with respect to a first tangent on a circle having a common center axis with the axis of rotation of the brush at a positive angle and the second comb shaped member is angled with its width direction with respect to a second tangent on the circle and said second tangent being perpendicular to the first tangent, said second comb shaped member being at a negative angle from said second tangent.
- the first and second comb shaped members are angled with respect to the axis of rotation of the brush in order to provide for an appropriate removal of particulate matter therefrom independent of the rotational direction of the brush.
- the absolute value of the positive angle and the negative angle is the same. Accordingly, the first comb shaped member and the second comb shaped member are disposed symmetrically in a cross-sectional view perpendicular to the axis of rotation of the brush with respect to a line perpendicularly intersecting with the axis of rotation of the brush.
- the first comb shaped member is inclined away from the axis of rotation in a direction towards the first rotating direction and the second comb shaped member is inclined away from the axis of rotation in a direction towards the second rotating direction.
- the brush and particularly the bristles reliably enter the recesses between the teeth of the comb shaped members and any particulate matter adhering to the brush or its bristles is scrapped away by the comb shaped members.
- a first rotatable separation roller extending parallel to the axis of rotation of the brush is disposed upstream of the first comb shaped member in the first rotating direction and a second rotatable separation roller extending parallel to the axis of rotation of the brush is disposed upstream of the second comb shaped member in the second rotating direction.
- the separation rollers in order to transfer the loosened particulate matter from the brush and the comb shaped members.
- the separation rollers create an air flow moving the particulate matter away from the brush and the comb shaped members and/or centrifuge any particulate matter adhering to the separation rollers away from the separation rollers. Accordingly, the particulate matter can reliably be transferred to the dust box.
- the first separation roller is configured to rotate in a direction opposite to the first rotating direction and the second separation roller is configured to rotate in a direction opposite to the second rotating direction.
- first and second separation roller are driven by the motor also rotating the brush.
- the brush is configured to be reciprocally and translationally movable along the filter surface.
- the brush may span the filter surface in a direction of the width of the filter and/or is movable along the length of the filter.
- the brush may be disposed on one of the opposite sides of the filter so as to engage with one of the filter surfaces during cleaning operation.
- the cleaning member that is the brush
- removing the particulate matter from the filter can be effected more efficiently because the brush can be moved along the filter more quickly and the particulate matter is brushed away from the filter surface due to the rotational movement of the brush.
- the mechanical forces applied to the filter surface are reduced as compared to a brush slid along the filter surface. Therefore, the risk of damaging the filter can be reduced.
- the brush moves along the length of the filter in opposite directions, wherein the direction of rotation of the brush is changed when changing the direction along the length of the filter (direction of movement). Accordingly, removing particulate matter from the filter can be achieved most effectively.
- the motor is configured to respectively rotate the brush in the direction of movement of the brush along the filter surface.
- “In the direction of movement” is to be understood in this context in that the brush is rotated against the rotation direction which would be imparted to the brush when moving the brush along the filter surface with the brush in contact with the filter surface by friction.
- the brush is rotated so that the upstream side of the brush is rotated against the filter surface whereas the downstream side rotates away from the filter surface. For example, the brush rotates clockwise if it is moved to the right and the brush rotates counterclockwise if it is moved to the left.
- particulate matter is scrapped or brushed away from the filter surface rather than being brushed and pressed into the filter surface.
- removing of particular matter from the filter surface is very efficient.
- the filter cleaning device may further comprise a dust box for receiving particulate matter removed from the filter by the brush and removed from the brush by the first and second comb shaped members and the third and fourth comb shaped members described below.
- the dust box may be movable together with the brush along the length of the filter. Further, the dust box may be arranged below the brush in a direction of gravity, whereby the particulate matter removed from the filter by the brush falls into the dust box by gravity. In a particular embodiment, the dust box may be arranged at an axial end of the brush.
- particulate matter removed from the filter by the brush and removed from the brush by the comb shaped members can easily be collected in the dust box.
- the particulate matter falls into the dust box automatically by gravity when being removed and loosened from the brush.
- the brush has a body and a plurality of bristles radially extending from the body.
- optional reinforcing ribs of the filter may be accommodated by a larger bending of the bristles.
- the use of bristles in combination with the comb shaped members provides for a very effective loosening of any particulate matter adhering to the brush in that the separate bristles path through the recesses between teeth of the comb shaped members so that the particulate matter is scrapped away from the bristles.
- a third comb shaped member and a fourth comb shaped member, each engaged with the brush, are provided in order to cope with this problem.
- the third and fourth comb shaped members have a different function than the first and second comb shaped members.
- the first and second comb shaped members described above are configured to gather the dust from the brush, that is scratch the dust from the bristles of the brush.
- the third and fourth comb shaped members form an obstacle to the bristles of the brush, wherein the bristles are bent upon rotation of the brush when engaging with the third and fourth comb shaped members.
- the third and fourth comb shaped members are active depending on the rotational direction of the brush.
- the third comb shaped member is only active in a first direction of rotation and the force of the comb shaped member is only active in a second direction of rotation of the brush.
- the third and fourth comb shaped members each have a length direction parallel to the axis of rotation of the brush and a width direction.
- the third comb shaped member is directed toward the first comb shaped member and the fourth comb shaped member is directed toward the second comb shaped member.
- the arrangement of the first and second comb shaped members and the third and fourth comb shaped members is the opposite, whereby effective scattering of the dust into the dust box may be achieved by the third and fourth comb shaped members and scratching of the remaining dust is still obtained by means of the first and second comb shaped members.
- the projections of the width directions of the third and fourth comb shaped members intersect.
- the projections of the width directions of the third and fourth comb shaped members may intersect outside the diameter of the brush.
- the projections of the width directions of the third and fourth comb shaped members intersect on the same side as the projections of the width directions of the first and second comb shaped members relative to the center axis (axis of rotation) of the brush.
- the third comb shaped member and the fourth comb shaped member may be disposed symmetrically in a cross-sectional view perpendicular to the axis of rotation of the brush with respect to a line perpendicularly intersecting with the axis of rotation of the brush.
- the projection of the width direction of the third comb shaped member and the projection of the width direction of the fourth comb shaped member intersect on said line.
- the point of intersection of the projections of the width directions of the third and fourth comb shaped members is the same as that of the projections of the width directions of the first and second comb shaped members.
- the third comb shaped member is inclined toward the axis of rotation of the brush in a direction of the first rotating direction and the fourth comb shaped member is inclined toward the axis of rotation in a direction of the brush toward the second rotating direction.
- an air conditioner particularly a duct-type air conditioner, having such filter cleaning device is suggested. Even though the use with a duct-type air conditioner is preferred, the present filter cleaning device may also be applied to other air conditioners in which a filter requires regular cleaning.
- FIGS 2 to 4 generally show a filter cleaning device 10 according to one example.
- the filter cleaning device comprises a casing 11.
- the casing 11 has a casing inlet 60 and a casing outlet 61.
- air flows through the casing 11 from the casing inlet 60 to the casing outlet 61 passing the filter 12.
- the filter cleaning device 10 may be mounted to existing air conditioners such as the one depicted in figure 1 , wherein the existing filter 12 is first removed from the existing indoor unit and a filter cleaning device 10 is attached to the inlet 2 of the existing casing at a flange 62.
- the filter cleaning device 10 as described herein may already be integrated into the casing of an indoor unit of an air conditioner at the time of production of the air conditioner.
- a control box 66 is attached to one side of the casing 11 and configured to control the cleaning operation of the filter 12 described later.
- the filter 12 contained in the filter cleaning device 10 is longitudinal and flat having a length L and a width W.
- the length L is larger than the width W, whereby the filter 12 is longitudinal.
- the lengths L and the width W are both much larger than the thickness/height, whereby the filter 12 is flat.
- the filter 12 comprises a frame 63 of plastic material, which is molded about a mesh 64 made of plastic material, metal or other suitable material.
- One longitudinal reinforcing rib 15 and a plurality of transverse reinforcing ribs 65 are provided in order to stabilize the mesh 64 over the length and widths of the filter 12.
- the filter has a first filter surface 13 facing the inlet 60 and a second filter surface 14 facing the outlet 61.
- the first and second filter surfaces 13, 14 can be best seen in figure 6 .
- the filter cleaning device 10 further comprises a cleaning unit 67 configured to clean the filter 12 and particularly its mesh 64.
- the cleaning unit 67 comprises cleaning member unit 67a and a counter surface unit 67b.
- the cleaning member unit 67a has a mechanical cleaning member 16 in the form of a brush 17.
- the brush 17 consists of a body 20 from which a plurality of separate bristles 21 extend in a radial direction.
- the brush 17 has a cylindrical shape and is rotatable about an axis of rotation 19, which corresponds to the center axis of the cylinder.
- the axis of rotation 19 is preferably parallel to the filter surface 13.
- the axis of rotation 19 of the brush 17 is disposed in a distance to the filter surface 13 which is smaller than the diameter of the brush to ensure contact of the brush 17 with the filter surface 13. Yet, the distance is according to the example larger than the diameter of the body 20 to prevent any damaging of the filter by the brush 17.
- the brush 17 is basically supported at both its axial ends 18 by supports 43a, 43b forming a support unit.
- the supports 43 rotatably support or retain the brush 17.
- the lower support 43b is embodied as a dust box 28.
- the lower support 43b has a bottom 100 and sidewalls 101 surrounding the bottom, whereby the dust box 28 is formed (see figure 14 ).
- the upper support 43a and the lower support 43b of the support unit are respectively provided with two wheels 45a, b.
- the wheels 45a of the upper support 43a are rotatably fixed to the upper support 43a or an upper portion of a wall 88 of a housing 30 connecting the supports 43a, 43b, respectively.
- the housing 30 connects to the side walls 100 of the dust box 28 and provides for a shielding effect as described in more detail below.
- the wheels 45a are rotatable about an axis of rotation 69.
- the wheels 45b of the lower support 43b are rotatably and pivotably fixed to the lower support 43b or a lower portion of the wall 88 of the housing 30.
- the wheels 45b are rotatably fixed to a pivot arm 71 about an axis of rotation 69 and the pivot arm 71 is pivotably fixed to the lower support 43b or a lower portion of the wall 88 of the housing 30 about a pivot 70.
- a spring (as an example of the second elastic member) 47 is fixed at one of its opposite ends to the pivot arm 41 of one wheel 45b and the other one of its opposite ends to the pivot arm of the other wheel 45b. Accordingly, the wheels 45b are urged towards each other about the pivots 70.
- the wheels 45a at the top are engaged with a longitudinal top guide rail 44a (guide) extending in a length direction of the filter 12 along the filter cleaning device 10.
- the support unit is movably guided between the guide rails 44a, 44b and hence movable along the length of the filter 12 or its filter surface 13, respectively.
- the filter 12 and consequently also the guide rails 44a, 44b can be relatively long. As a consequence, bending of the guide rails 44a, 44b may occur with the result that the distance D (see figure 12 with respect to the counter surface unit 67b) parallel to the filter surface 13 and between opposite guide rails 44a, 44b at the top and bottom is not constant over the lengths of the guide rails 44a, 44b.
- the wheels 45b of the lower support 43b are urged towards each other by the spring 47 about the pivots 70. Accordingly, the wheels 45b are urged towards a position in which their distance D to the wheels 45a at the upper support 43a is the largest.
- the brush 17 is rotatably supported in the support unit.
- the support unit serves to move the brush 17 along the filter surface 13.
- the support unit is driven.
- a rack 72 (see figure 13 ) is provided extending along the filter 12 in parallel to the guide rails 44a, 44b.
- the support unit comprises a motor 46 (see figure 14 ) which may be a stepping motor.
- the motor 46 is attached to the upper support 43a, thus avoiding any possible contact with condensate accumulating at the bottom of the filter cleaning device.
- the motor 46 is with its axis connected to a first gear 73 rotatably attached to the upper support 43a.
- the first gear 73 meshes with a second gear 74 again meshing with a third gear 75.
- the second and third gear 74 and 75 are rotatably attached to the upper support 43a.
- the third gear 75 meshes with the rack 72.
- the motor 46 rotates the first gear 73, whereby the second gear 74 and the third gear 75 are rotated.
- the rotational force is transmitted via the gears 73 to 75 to the rack 72.
- the rack 72 converts the rotational force into a translational force, whereby the support unit and, hence, the brush 17 rotatably supported therein, are moved along the rack 72 and thereby along the filter 12.
- Figure 13 additionally shows a fourth gear 76 again meshing with the rack 72.
- a centrally arranged fifth gear 77 meshes with the fourth gear 76 to transfer the rotation to a sixth gear 78.
- the axis of rotation 19 of the brush 17 is fixed to the axis of rotation of the sixth gear 78. Accordingly, upon operation of the motor 46 and movement of the support unit along the rack 72, the movement of the support unit along the rack 72 results in rotation of the fourth gear 76 meshing with the rack 72. As a consequence, the translational movement of the support unit along the rack 72 is converted into a rotational movement. This rotation is transferred via the centrally arranged fifth gear 77 to the sixth gear 78 thereby rotating the brush 17.
- the fourth gear 76 is rotated clockwise whereby the centrally arranged fifth gear 77 is rotated counterclockwise and the sixth gear 78 again rotates clockwise. If the support unit moves in figure 13 to the left, the fourth gear 76 is rotated counterclockwise whereby the centrally arranged fifth gear 77 is rotated clockwise and the sixth gear 78 again rotates counterclockwise.
- the brush 17 is rotated in opposite directions and depending on the direction of movement of the support unit. In particular, the brush 17 is always rotated in the direction of movement. In other words, the upstream side of the brush 17 is always rotated against the filter surface 13 whereas the downstream side of the brush 17 is always rotated away from the filter surface 13.
- the cleaning member unit 67a may be moved to a parking position shown in figures 5 and 6 during non-cleaning operation of the cleaning unit. It is preferred that the cleaning unit does not overlap with the filter surfaces 13, 14 of the filter 12 in this parking position as seen in a plan view such as in the cross section of figure 6 or in a front view as shown in figure 5 . Thus it can be prevented that any portion of the filter 12 is blocked by the cleaning unit during non-cleaning operation, that is during air conditioning operation. Thus, the cleaning unit does not represent any obstruction to the air flow flowing through the filter 12 and the whole filter surface 13, 14 may be used.
- the cleaning unit further comprises a first comb shaped member 48 and a second comb shaped member 49 which are respectively engaged with the brush 17 and particularly the bristles 21 (see figure 16 ).
- the comb shaped members 48 and 49 extend parallel to the axis of rotation 19 of the brush 17 along the whole or at least a substantial part of the axial lengths of the brush 17.
- the comb shaped members 48 and 49 have a length along the axial direction and a width perpendicular thereto (seen in the cross-sectional view in figure 16c ).
- the comb shaped members 48 and 49 further have in their width direction a free edge 99 respectively engaged with the bristles 21 of the brush 17.
- the opposite edge of the comb shaped members 48 and 49 is respectively connected or integrally formed with a comb body 97. As shown in figure 15 , the comb body 97 is fixed to the housing 30 or more particularly the back wall 88 of thereof.
- the comb shaped members 48 and 49 are respectively formed along the length direction with a plurality of teeth 102 separated by recesses.
- the comb shaped members are configured of a plurality of merlons and crenels.
- the teeth 102 extend in the width direction from the comb body 97.
- the cross-sectional line A-A extends through one of the teeth 102.
- the two comb shaped members 48 and 49 are respectively angled or inclined with their width direction in opposite directions, that is away from each other. To put it differently, the comb shaped members 48 and 49 are inclined in different directions with respect to an axis of symmetry 103. In particular, the teeth 102 are angled or inclined as described above.
- the comb shaped members 48 and 49 are respectively arranged symmetrically to the line of symmetry 103. As shown, the comb shaped members 48 and 49 are angled by a positive angle ⁇ + and a negative angle ⁇ - , respectively.
- the first comb shaped member 48 is angled clockwise at a negative angle ⁇ - and the second comb shaped member 48 is angled counterclockwise at a positive angle ⁇ + with their width direction.
- the width direction is preferably drawn as a centerline in the cross-section in figure 16c ) at that position of the comb shaped members having the largest thickness perpendicular to the width direction WD and the length direction LD. Accordingly, if the brush 17 is rotated clockwise in figure 16c ), the comb shaped member 48 is inclined towards the direction of rotation of the brush 17. If the brush 17 is rotated counterclockwise, the comb shaped member 49 is inclined towards the direction of rotation of the brush 17. Accordingly, it can be effectively achieved that the bristles 21 of the brush 17 and to the recesses between the teeth 102 so that any particulate matter can be scrapped of the bristles 21.
- the dust may adhere to the comb shaped members 48 and 49 promoting the formation of dust lumps which stick to the comb shaped members 48 and 49 and/or are difficult to be removed from the dust box 28.
- two additional comb-shaped members 104, 105 are provided.
- the comb shaped members 104 and 105 are provided in the proximity of the opening 31 from which the brush 17 projects.
- the comb shaped members 104 and 105 also engage with the bristles 21 of the brush 17.
- the comb shaped members 104 and 105 extend parallel to the axis of rotation 19 of the brush 17 along the whole or at least a substantial part of the axial lengths of the brush 17.
- the comb shaped members 104 and 105 have a length along the axial direction and a width perpendicular thereto (seen in the cross-sectional view in figure 17 ).
- the comb shaped members 104 and 105 further have in their width direction a free edge 106 respectively engaged with the bristles 21 of the brush 17.
- the opposite edge of the comb shaped members 48 and 49 is respectively connected or integrally formed with the housing 30 forming the dust box 28.
- the comb shaped members 104 and 105 are respectively formed along the length direction with a plurality of teeth separated by recesses.
- the comb shaped members are configured of a plurality of merlons and crenels.
- the comb shaped members 104 and 105 may have a plate-shaped with a straight edge engaging with the bristles 21.
- the comb shaped members 104 and 105 are respectively angled or inclined with their width direction in opposite directions towards each other. To put it differently, the comb shaped members 104 and 105 are inclined in different directions with respect to an axis of symmetry 103.
- the projections of the width directions of the comb shaped members 104 and 105 intersect at the point of intersection 108 on the line of symmetry 103. Also the projections 107 of the width directions of the comb shaped members 48 and 49 intersect in the same point of intersection 108 on the line of symmetry 103.
- the free edges 99 of the comb shaped members 48 and 49 and the free edges 106 of the comb shaped members 104 and 105 face each other.
- the comb shaped members 48 and 49 and the comb shaped members 104 and 105 are directed towards each other, respectively.
- the brush 17 may rotate in opposite directions and depending on the movement of the support unit.
- the first comb shaped member 48 serves for removing or loosening the particulate matter from the bristles 21, whereas if the brush rotates counterclockwise, the second comb shaped member 49 provides for this effect.
- a very effective cleaning of the bristles 21 may be affected no matter in which direction the brush 17 rotates.
- the fourth comb shaped member 105 is active and functions in the same manner as the third comb shaped member 104 as described above. Also and as described earlier, the second comb shaped member 49 is active and takes over the function of the first comb shaped member 48.
- first and second separation roller 53 and 54 are provided wherein the first separation 53 is associated to the first comb shaped member 48 and the second separation roller 54 is associated to the second comb shaped member 49.
- Both separation rollers 53, 54 extend parallel to the axis of rotation 19 of the brush 17.
- the separation rollers 53, 54 are respectively provided in order to remove the particulate matter loosened by the comb shaped members 48, 49 from the bristles 21 away from the brush 17 so that the particulate matter falls into or towards the bottom 100 of the dust box 28 by gravity.
- the separation rollers 53, 55 are rotated in the same direction as the brush 17.
- the separation rollers 53, 55 is there a centrifuge particulate matter coming into contact with the separation rollers away from the brush 17 and the comb shaped members 48, 49 or at least create an air flow blowing the loosened particulate matter away.
- the separation rollers 53 and 54 are located on an outer side of the comb shaped members 48, 49 with respect to the axis of rotation 19 of the brush 17, respectively.
- two seventh gears 79 are provided meshing with the centrally arranged fifth gear 77. These seventh gears 79 are respectively attached to the axes of rotation of the first and second separation rollers 53 and 54 at their axial ends. As the sixth gear 78 also the seventh gears 79 will be rotated automatically by movement of the support unit along the rack 72 and rotation of the fourth gear 76. The axial ends of the separation rollers 53 and 54 opposite to the seventh gears 79 are rotatably accommodated in the collars 98 at the bottom of the support unit (lower support 43b) as shown in figure 14 .
- both seventh gears 79 are rotated counterclockwise, whereas both seventh gears 79 are rotated clockwise when the support unit moves to the left. Accordingly also in this case, the motor 46 is used to rotate the first and second separation rollers 53, 54 in the same direction as the brush 17.
- the support unit further comprises the housing 30 and a partition 68.
- the housing 30 together with the partition 68 forms a chamber accommodating the brush 17. That chamber is communicated with the dust box 28 in which particulate matter brushed off the filter 12 or its filter surface is retained before being removed by a vacuum source as explained later.
- the housing 30 together with the partition 68 further defines an opening 31 through which a portion of the brush 17 extends (see figure 9 ). Thereby it is ensured that the brush protrudes from the housing 30 and is capable of contacting and brushing the filter surface 13. Further, the housing 30 prevents particulate matter removed from the filter by the brush from being distributed throughout the filter cleaning device.
- the housing 30 shields the dust box 28 and prevents particulate matter already collected in the dust box from being sucked from the dust box during the air conditioning operation.
- the relatively small opening 31 enables to reduce exchange of air at the dust box 28, when removing the particulate matter from the dust box using a vacuum source. Thus, building up a relatively high under pressure is simplified.
- a suction section 32 as shown in figures 6 , 8 and 9 is provided for removing the dust accumulated in the dust box 28 from the dust box.
- the suction section 32 comprises an outlet 37.
- the outlet 37 which may be a circular opening, has a center axis 38.
- the outlet 37 is communicated with the dust box 28 via a cleaning path 80 having a cleaning opening 81 (see figure 14 ) opening into the dust box 28.
- the suction section 32 further comprises a suction opening 33 fixed to the casing 11 of the filter cleaning device.
- a fitting extends from the casing 11 and forms the suction opening 33 at the inside of the casing 11,
- the fitting further has an exhaust opening 82 at the outside of the casing 11.
- the suction opening 33 and the exhaust opening 82 may be both circular.
- the center axis of at least the suction opening 33 is congruent with the center axis 38 of the outlet 37.
- a suction socket 42 may be communicated to the suction opening 33 via a hose 83 connected to the exhaust opening 82 at one end and to the suction socket 42 at the other end.
- the suction socket 42 may be configured to receive a fitting and/or a hose of a common vacuum cleaner and may be accessible in the false ceiling U or a false wall without the necessity to remove a part of the ceiling or a wall. Further, it may as well be conceivable to dispose the suction socket 42 outside the room to be conditioned via the air conditioner. Thus, cleaning personal is enabled to remove dust from the dust box 28 without having to enter the room to be conditioned such as the hotel room or a meeting room.
- the cleaning unit moves towards the left in figure 8 until it reaches the parking position mentioned above.
- the outlet 37 is communicated with the suction opening 33, whereby the dust box 28 is communicated via the cleaning opening 81, the cleaning path 80, the outlet 37 to the suction opening 33 and, hence, to the exhaust opening 82.
- a sealing member 34 is provided at an area 35 surrounding the outlet 37 and/or an area 36 surrounding the suction opening 33.
- the sealing 34 is sandwiched and pressed between the area 35 and the area 36 and the outlet 37 is communicated with the suction opening 33.
- the stepping motor 46 is controlled by the control box 66.
- the control is configured to move the cleaning unit towards the left (in the direction of the parking position) at least one additional distance (one or more steps of the stepping motor). Accordingly a relatively tight and reliable seal can be achieved.
- a shroud 84 may be provided surrounding the outlet 37 or the suction opening 33. Upon reaching the parking position, the shroud 84 enters into the suction opening 33 and engages with an inner circumferential surface of the suction opening 33, thereby achieving a sealing effect.
- the shroud 84 may, hence, dispense the sealing function and merely provide for centering the outlet 37 relative to the suction opening 33.
- the shroud 84 may have a tapering 85 towards the suction opening 33, whereby upon engagement of the shroud 84 in the suction opening 33 a self-centering effect is obtained.
- a lid 39 is fixed to the casing 11 as best shown in figures 7 and 8 . More particular, the lid 39 in this example is rotatably fixed to the casing 11 about the rotation axis 85.
- the lid 39 is comprised of a covering 86 forming a cavity 41 and an actuating arm 40. The covering 86 and the cavity 41 are located on one side relative to the axis 85 and the actuating arm 40 is located on the other side relative to the axis 85.
- the lid 39 is urged about the axis 85 counterclockwise by a leg spring 87 (third elastic member). In particular and with reference to the following description of its function, the lid 39 is urged towards an opening position.
- the left end of the housing 30 or any other part of the cleaning unit comes in contact (engages) with the actuating arm 40. Accordingly, the cleaning unit pushes the actuating arm 40 in a clockwise direction about the axis 85. Thereby the covering 86 is rotated toward the housing 30 against the force of the leg spring 87. In the parking position, shown in figures 5 and 6 , the covering 86 closes the opening 31 of the housing 30 and the cavity 41 accommodates that portion of the brush 17 protruding from the opening 31. Lid 39 is, thus, capable of preventing any particulate matter accumulated in the dust box 28 from leaving the dust box 28 and the housing 30 during air conditioning operation.
- closing of the opening 31 by the lid 39 also provides for a more effective cleaning of the dust box 28 as compared to a non-sealed opening.
- a higher under pressure may be built up within the dust box 28 leading to a more effective or more complete cleaning of the dust box 28 by the vacuum cleaner.
- the cleaning unit further comprises the counter surface unit 67b.
- the counter surface unit 67b comprises a counter surface 22 (see figures 11 and 12 ).
- the counter surface 22 is formed by the outer surface 25 of a cylinder 26.
- the cylinder 26 is rotatably supported in a supporting unit formed by an upper support 43c and a lower support 43d connected by a back wall 88.
- the support unit is configured very similar to that of the cleaning member unit 67a and comprises two upper wheels 45c and to lower wheels 45d wherein the wheels 45c, 45d and their connection are embodied in the same manner as described with respect to the cleaning member unit 67a and as shown in figure 10 . Accordingly and in order to avoid repetition these elements are not described in more detail at this stage.
- motor 46 is also provided in the support unit ( figure 11 ) .
- the motor 46 is with its axis connected to eighth gear 94 meshing with a ninth gear 95 again meshing with a tenth gear 96 meshing with the rack 72.
- the support unit of the counter surface unit 67b is moved along the rack 72 upon operation of the motor 46 in the same manner as the support unit of the cleaning member unit 67a and further description is omitted.
- the cylinder 26 comprises a cylinder axis 27 which is at the same time the axis of rotation of the cylinder 26.
- the cylinder 26 has at its center in the axial direction an annular groove 24.
- the annular groove 24 accommodates the longitudinal reinforcing rib 15 of the filter 12. Thereby it can be ensured that the outer surface 25 of the cylinder reliably pushes the mesh 64 of the filter 12 against the bristles 21 of the brush 17 and closes the mesh 64 at the filter surface 14 in order to prevent particulate matter from being pressed through the mesh 64.
- a plurality of such annular grooves 24 can be provided if a plurality of longitudinal reinforcing ribs 15 is provided.
- the cylinder 26 is hollow.
- the cylinder 26 can be produced from half shells 89.
- the half shells 89 are each half circular in cross section and, thus, a half cylindrical.
- the half shells may be at one end be connected by a living or integral hinge.
- the axis of rotation 27 may be integrally formed with one of the half shells 89.
- two coaxial protrusions may extend from the axial end of the half shells in an axial direction.
- the cylinder 26 may be injection molded from plastic material.
- the half shells 89 are rotated about the living hinge and fixed together by latches 90 at one of the half shells 89 and corresponding hooks 91 at the other one of the half shells 89.
- latches 90 at one of the half shells 89 and corresponding hooks 91 at the other one of the half shells 89.
- the half shells may be formed separately and then be fixed together without the use of a living hinge.
- the filter 12 may along its length not to be completely flat but bend in a direction towards the counter surface unit 67b and/or the cleaning member unit 67a or even wavy. Accordingly, it could happen that either the brush 17 comes out of contact with the filter surface 13 reducing cleaning efficiency or that the brush 17 is pushed into the filter surface 13 to heavily with the risk of damaging the filter. To cope with this problem, the cylinder 26 and hence the counter surface 21, formed by the outer surface 25 of the cylinder 26, is urged towards the filter surface 14.
- the axis of rotation 27 of the cylinder 26 is guided in a long hole 92 (also see figure 15 ).
- the longitudinal direction of the long hole 92 extends in a direction perpendicular to the filter surface 14. Accordingly, the cylinder 26 may move in a direction perpendicular to the filter surface 14.
- a leg spring 23 (as an example of a first elastic member) is provided in order to urge the cylinder 26 in a direction towards the filter surface 14. More particularly, the axis of rotation 27 of the cylinder 26 is rotatably fixed to a carriage 93.
- the carriage 93 is translationally movable in the long hole.
- the movability of the cylinder 26 in a direction perpendicular to the filter surface 14 accommodates changes in the distance of the filter surface 14 to the outer surface 25 due to unevenness of the filter 12 along its length. Accordingly the filter is always reliably pressed against the rotating brush 17 or more particularly its bristles 21 at a relatively constant force so that a high cleaning efficiency may be achieved without the risk of damaging the filter.
- the cleaning member unit 67a and the counter surface unit 67b are respectively formed independent and separate from each other. More particularly, the support units are formed separately. Accordingly, the filter cleaning device 10 may have a relatively low width (or height) being substantially dependent on the width of the filter 12. However in alternative embodiments, the support units may also be connected above and/or below the frame 63 of the filter 12. This would provide for the advantage that only one motor 46 would be required for both units 67a, 67b.
- the cleaning unit including the brush 17 and the counter surface 22 is positioned in the parking position shown in figures 2 to 6 .
- the control considers whether cleaning operation is required.
- different parameters and can trigger that cleaning operation is required.
- the cleaning operation is performed in a predetermined time interval.
- a sensor may be provided capable of measuring a degree of particulate matter on the filter such as a sensor capable of measuring a flow resistance of air flowing through the filter. The output of this sensor may be used by the control to trigger the cleaning operation.
- other para meters may be used for this purpose.
- the control in the control box 66 cooperates with the control of the air conditioner to temporarily stop the air conditioning operation.
- the motors 46 are activated.
- the cleaning member unit 67a and the counter surface unit are moved from the left to the right along the filter surfaces 13, 14 respectively, wherein the rotational force of the motors 46 is transferred via the gears 73 to 75 to the rack 72 and the gears 94 to 96 to the rack 72.
- the brush 17 is rotated, wherein the translational movement of the support unit of the cleaning member unit 67a along the rack 72 is converted and transmitted via the gears 76, 77 and 78 to the axis of rotation 19 of the brush 17, thereby rotating the brush 17 clockwise.
- the bristles 21 brush particular matter from the filter surface 14 away from the filter surface 14 whereby the particulate matter is transferred by the brush 17 through the opening 31 into the housing 30 and subsequently falls into the dust box 28 by gravity.
- the particulate matter is scrapped away from the bristles 21 by the first comb shaped member 48.
- the first separation roller 53 being rotated by the gear 79 in a counterclockwise direction ensures that the particulate matter scrapped away from the bristles 21 by the first comb shaped member 48 is moved away from the bristles 21.
- the thus separated particulate matter will then fall into the dust box 28 or particularly towards its bottom 100 by gravity and will be collected at the bottom 100 of the dust box 28 (lower support 43b).
- the counter surface 22 formed by the outer surface 25 of the cylinder 26 is moved together with the brush 17 along the filter 12 being in contact with the opposite filter surface 14.
- a line connecting the axis of rotation 27 and the axis of rotation 19 is perpendicular to the filter surfaces 13, 14.
- the counter surface 22 supports the filter 12 at the side of the filter surface 14 so as to keep the mesh 64 in contact with the bristles 21 of the brush 17.
- the counter surface 22 may compensate for any deviations of the filter 12 from an evenly flat shape in that it may move perpendicular to the filter surfaces 13, 14 within the long hole 92.
- the bristles 21 are engaged with the filter surface 13 at a relatively constant pressure/force along the length of the filter. Accordingly, an efficient and reliable cleaning can be performed without the risk of damaging the filter.
- the counter surface 22 particularly the cylinder 26 is not actively driven or rotated, but rotates because of its frictional contact with the filter surface 14.
- the cylinder 26 hence rotates in the same direction as the brush 17, that is clockwise. Due to the rotation of the counter surface and its curved shape, the contact area and the friction between the contact area and the filter surface 14 is relatively low so that any damaging of the filter 12 by the counter surface 22 can reliably be prevented.
- the rotation direction of the motors 46 is switched. This can for example be triggered by the cleaning unit moving against a limit switch, thereby switching the motors 46. Yet, also other control mechanisms are conceivable. Switching the rotational direction of the motors 46 changes the rotational direction of all gears 33 to 79 and 94 to 96. Accordingly, the brush 17 is rotated counterclockwise as are the separation rollers 53 and 54. During the movement to the left, the cylinder 26 is again rotated by frictional engagement with the filter surface 14, however, now counterclockwise. During movement in this direction, the second comb shaped member 49 and the second separation roller 54 are active for scrapping the particulate matter from the bristles 21 and move the scrapped of particulate matter away from the bristles 21 for being collected in the dust box 28.
- the cleaning unit is again moved to the parking position. During this movement and as previously indicated, the housing 30 of the cleaning unit engages with/comes into contact with the actuating arm 40 thereby pivoting the lid 39 around the axis 85 in a clockwise direction, whereby the covering 86 closes the opening 31 in the housing 30. If the cleaning unit has reached the parking position which may be indicated to the control by the use of a sensor or a limit switch, the motors 46 are activated to perform at least one more step towards the parking position in order to press the sealing 34 and securely communicate the outlet 37 and the suction opening 33. Subsequently, the cleaning operation is finished.
- the cleaning personal in the premises in which the filter cleaning devices are mounted may in a regular interval then plug a fitting of the vacuum cleaner into the suction socket 42 and thereby apply a sucking force to the suction opening 33, whereby particulate matter accumulated at the bottom 100 of the dust box 28 is sucked from the dust box 28 via the cleaning opening 81, the cleaning path 80, the outlet 37, the suction opening 33, the exhaust opening 82, the hose 83 and the suction socket 42 into the vacuum cleaner.
- a visual indicator such as a light at the suction section 42, which could indicate to the cleaning personal that emptying the dust box 28 is required (for example a red light for cleaning and a green light for non-cleaning requirement).
- sensors outputting information on the amount of particulate matter accumulated in the dust box 28 can be used. This information can be outputted to the network or used to control the visual indicator.
- the suction section 42 is disposed outside the space to be conditioned, whereby the cleaning personal does not need to enter this space for emptying the dust box 28.
- the filter cleaning device described above provides for a very efficient system overcoming the problems adhering to the prior art to at least to some extent.
- Filter cleaning device 10 Casing 11 Filter 12 Filter surface 13, 14 Width of the filter w Length of the filter L Longitudinal reinforcing rib 15
- Cleaning member 16 Brush 17 Axial end of the brush 18 Axis of rotation (cylinder axis) 19 Body 20 Bristles 21 Counter surface 22 First elastic member 23 Annular groove 24 Outer surface 25 Cylinder 26 Axis 27 Dust box 28 Direction of movement 29 Housing 30 Opening 31 Suction section 32 Suction opening 33 Sealing 34 Area surrounding the outlet 35 Area surrounding the suction opening of the casing 36 Outlet 37 Center axis 38 Lid 39 Actuating arm 40 Cavity 41 Suction socket 42 Support 43 a-d Guide 44 a-d Wheel 45 a-d Motor 46
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Claims (14)
- Dispositif de nettoyage de filtre pour un climatiseur (1), notamment un climatiseur de type à conduit, le dispositif de nettoyage de filtre comprenant :- un filtre (12) que doit traverser un flux d'air et ayant une surface de filtre (13) ;- une brosse (17) pouvant être mise en contact avec la surface de filtre (13) pour enlever des matières particulaires de la surface de filtre, dans lequel la brosse a une forme cylindrique ; et- un moteur (46) configuré pour faire tourner la brosse dans des directions opposées;- un premier organe en forme de peigne (48) en prise avec la brosse ; et- un deuxième organe en forme de peigne (49) en prise avec la brosse,- dans lequel les premier et deuxième organes en forme de peigne ont chacun une direction de longueur parallèle à l'axe de rotation de la brosse et une direction de largeur, dans lequel le premier organe en forme de peigne et le deuxième organe en forme de peigne sont inclinés à l'opposé l'un de l'autre dans une vue en coupe perpendiculaire à un axe de rotation (19) de la brosse,
caractérisé en ce que le dispositif de nettoyage de filtre comprend en outre un troisième organe en forme de peigne (104) en prise avec la brosse (17) et un quatrième organe en forme de peigne (105) en prise avec la brosse (17), dans lequel les troisième et quatrième organes en forme de peigne ont chacun une direction de longueur parallèle à l'axe de rotation (19) de la brosse et une direction de largeur. - Dispositif de nettoyage de filtre selon la revendication 1, dans lequel le premier organe en forme de peigne (48) est coudé avec sa direction de largeur (WD) par rapport à une première tangente (50) sur un cercle (52) ayant un axe central commun avec l'axe de rotation (19) de la brosse (17) sur un angle positif (α+) et le deuxième organe en forme de peigne (49) est coudé avec sa direction de largeur (WD) par rapport à une seconde tangente (51) sur le cercle et ladite seconde tangente étant perpendiculaire à la première tangente, ledit deuxième organe en forme de peigne étant sur un angle négatif (α-) par rapport à ladite seconde tangente.
- Dispositif de nettoyage de filtre selon la revendication 2, dans lequel la valeur absolue de l'angle positif (α+) et de l'angle négatif (α-) est la même.
- Dispositif de nettoyage de filtre selon l'une quelconque des revendications précédentes, dans lequel le premier organe en forme de peigne (48) est incliné à l'opposé de l'axe de rotation (19) de la brosse (17) dans une direction vers la première direction de rotation et le deuxième organe en forme de peigne (49) est incliné à l'opposé de l'axe de rotation dans une direction de la brosse (17) vers la seconde direction de rotation.
- Dispositif de nettoyage de filtre selon l'une quelconque des revendications précédentes, dans lequel un premier rouleau de séparation rotatif (53) s'étendant parallèle à l'axe de rotation (19) de la brosse (17) est disposé en amont du premier organe en forme de peigne (48) dans la première direction de rotation et un second rouleau de séparation rotatif (54) s'étendant parallèle à l'axe de rotation de la brosse est disposé en amont du deuxième organe en forme de peigne (49) dans la seconde direction de rotation.
- Dispositif de nettoyage de filtre selon la revendication 5, dans lequel le premier rouleau de séparation (53) est configuré pour tourner dans une direction opposée à la première direction de rotation et le second rouleau de séparation (54) est configuré pour tourner dans une direction opposée à la seconde direction de rotation.
- Dispositif de nettoyage de filtre selon la revendication 5 ou 6, dans lequel les premier et second rouleaux de séparation (53, 54) sont entraînés par le moteur (46).
- Dispositif de nettoyage de filtre selon l'une quelconque des revendications précédentes, dans lequel la brosse (17) est configurée pour être mobile en va-et-vient et en translation le long de la surface de filtre (13).
- Dispositif de nettoyage de filtre selon la revendication 8, dans lequel le moteur (46) est configuré pour faire tourner respectivement la brosse dans la direction de déplacement (29) de la brosse (17) le long de la surface de filtre (13).
- Dispositif de nettoyage de filtre selon l'une quelconque des revendications précédentes, comprenant en outre une boîte à poussière (20) pour recevoir des matières particulaires enlevées du filtre (12) par la brosse (17).
- Dispositif de nettoyage de filtre selon l'une quelconque des revendications précédentes, dans lequel la brosse (17) a un corps (20) et une pluralité de poils (21) s'étendant radialement depuis le corps.
- Dispositif de nettoyage de filtre selon l'une quelconque des revendications précédentes, dans lequel le troisième organe en forme de peigne (104) est dirigé vers le premier organe en forme de peigne (48) et le quatrième organe en forme de peigne (105) est dirigé vers le deuxième organe en forme de peigne (49).
- Dispositif de nettoyage de filtre selon l'une quelconque des revendications précédentes, dans lequel le troisième organe en forme de peigne (104) est incliné vers l'axe de rotation (19) de la brosse (17) dans une direction de la première direction de rotation et le quatrième organe en forme de peigne (105) est incliné vers l'axe de rotation dans une direction de la brosse (17) vers la seconde direction de rotation.
- Climatiseur, notamment climatiseur de type à conduit, le climatiseur ayant un dispositif de nettoyage de filtre (10) selon l'une quelconque des revendications précédentes.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2017303171A AU2017303171B2 (en) | 2016-07-28 | 2017-07-25 | Filter cleaning device for an air conditioner and air conditioner having such filter cleaning device |
CN201780046113.7A CN109790999B (zh) | 2016-07-28 | 2017-07-25 | 过滤器清洁设备和空气调节器 |
US16/321,121 US20190178527A1 (en) | 2016-07-28 | 2017-07-25 | Filter cleaning device for an air conditioner and air conditioner having such filter cleaning device |
PCT/JP2017/026853 WO2018021305A1 (fr) | 2016-07-28 | 2017-07-25 | Dispositif de nettoyage de filtre pour climatiseur et climatiseur comportant ledit dispositif de nettoyage de filtre |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16181787 | 2016-07-28 |
Publications (2)
Publication Number | Publication Date |
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EP3276277A1 EP3276277A1 (fr) | 2018-01-31 |
EP3276277B1 true EP3276277B1 (fr) | 2020-04-08 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17155600.4A Active EP3276277B1 (fr) | 2016-07-28 | 2017-02-10 | Dispositif de nettoyage de filtre pour un climatiseur et climatiseur équipé dudit dispositif de nettoyage de filtre |
Country Status (5)
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US (1) | US20190178527A1 (fr) |
EP (1) | EP3276277B1 (fr) |
CN (1) | CN109790999B (fr) |
AU (1) | AU2017303171B2 (fr) |
WO (1) | WO2018021305A1 (fr) |
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CN112578081B (zh) * | 2020-12-04 | 2023-02-03 | 太原海纳辰科仪器仪表有限公司 | 一种用于医院实验室用自动移动式环境监测用报警装置 |
CN112923454B (zh) * | 2021-02-08 | 2022-01-25 | 深圳恒隆世纪技术工程有限公司 | 一种无尘室智能化通风过滤装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0632926U (ja) | 1992-09-18 | 1994-04-28 | 株式会社富士通ゼネラル | 空気調和機 |
KR20030083185A (ko) | 2002-04-19 | 2003-10-30 | 엘지전자 주식회사 | 덕트형 공기조화기 |
KR100511979B1 (ko) | 2003-03-13 | 2005-09-02 | 엘지전자 주식회사 | 덕트형 공기조화기 |
CN1625065A (zh) * | 2003-12-05 | 2005-06-08 | 皇家飞利浦电子股份有限公司 | 一种用于无线通信***的接收机 |
JP4418427B2 (ja) * | 2005-07-04 | 2010-02-17 | 三菱重工業株式会社 | 室内機ユニットおよび空気調和機 |
JP5194349B2 (ja) | 2005-10-06 | 2013-05-08 | パナソニック株式会社 | 空気調和機 |
JP4523578B2 (ja) | 2006-12-11 | 2010-08-11 | ダイキン工業株式会社 | 空気調和機のフィルタ清掃機構 |
JP2008175485A (ja) * | 2007-01-19 | 2008-07-31 | Mitsubishi Heavy Ind Ltd | 室内機ユニット及び空気調和装置 |
JP4433079B2 (ja) * | 2008-02-28 | 2010-03-17 | ダイキン工業株式会社 | 空気調和機 |
CN103727648B (zh) * | 2008-09-09 | 2017-04-12 | 大金工业株式会社 | 过滤器清扫单元以及空调机 |
JP2011043293A (ja) * | 2009-08-21 | 2011-03-03 | Daikin Industries Ltd | 空気調和装置の室内ユニット |
JP5563047B2 (ja) * | 2012-11-12 | 2014-07-30 | 三菱重工業株式会社 | 室内機ユニットおよび空気調和機 |
GB201412453D0 (en) | 2014-07-14 | 2014-08-27 | Payne Robert A | An air conditioning filter cleaner and associated multiple filter cleaning system |
CN105299765B (zh) * | 2015-11-30 | 2018-06-01 | 美的集团武汉制冷设备有限公司 | 除尘装置及挂壁式空调器 |
-
2017
- 2017-02-10 EP EP17155600.4A patent/EP3276277B1/fr active Active
- 2017-07-25 WO PCT/JP2017/026853 patent/WO2018021305A1/fr active Application Filing
- 2017-07-25 US US16/321,121 patent/US20190178527A1/en not_active Abandoned
- 2017-07-25 AU AU2017303171A patent/AU2017303171B2/en active Active
- 2017-07-25 CN CN201780046113.7A patent/CN109790999B/zh active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
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CN109790999A (zh) | 2019-05-21 |
CN109790999B (zh) | 2020-12-01 |
AU2017303171A1 (en) | 2019-01-24 |
WO2018021305A1 (fr) | 2018-02-01 |
EP3276277A1 (fr) | 2018-01-31 |
AU2017303171B2 (en) | 2019-10-17 |
US20190178527A1 (en) | 2019-06-13 |
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