JP5262001B2 - Dust remover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To regenerate its main filter by knocking off dusts sticking onto the outer circumferential face thereof by virtue of the centrifugal force of the rotating main filter, the force of wind blowing from a centrifugal fan, and a brush. <P>SOLUTION: The dust collector consists of: a main filter 10 rotated by a motor 6; a centrifugal fan 9 rotating in synchronism with the main filter 10; a casing 15 equipped with a tongue 14 and an air passage expanding in the direction of the rotation of the centrifugal fan 9; and a linear brush 12 sliding over and contacting with the main filter 10, wherein the dusts 11 sticking onto the outer circumferential face of the main filter 10 are knocked off by virtue of the centrifugal force of the rotating main filter 10, the force of wind blowing from the centrifugal fan 9, and the linear brush 12, thereby regenerating the mainfilter 10. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a dust removing apparatus that stably separates and removes dust contained mainly in the atmosphere over a long period of time.

  Conventionally, this type of ventilation unit uses a filter to collect dust in the air when supplying air, but if dust accumulates on this filter and becomes clogged, the pressure loss increases and the ventilation air volume decreases. It was necessary to change or clean the filter regularly. Therefore, a removal method using centrifugal force is known as means for removing clogging of a filter without taking time (see, for example, Patent Document 1).

  Hereinafter, the removal method will be described with reference to the dust removing device of FIG. 8 is connected to a substantially cylindrical filter 102 and a motor 103, and includes a suction port 104 and a discharge port 105. The filter 102 is rotatable. When dust in the atmosphere or gas is collected, the dust 106 is collected on the outer peripheral surface of the filter 102 by allowing the gas containing the dust 106 flowing in from the suction port 104 to flow from the outside to the inside of the filter 102. The purified gas flows out from the discharge port 105. And when removing the clogging of the filter 102, the dust adhering to the outer peripheral surface of the filter 102 is wiped off by rotating the filter 102 and utilizing centrifugal force.

  Another conventional exhaust treatment system is known as a removal method using a brush as means for removing clogging of a filter without taking time (for example, see Patent Document 2).

Hereinafter, the removal method will be described with reference to the dust removing device of FIG. A dust removing device 101 in FIG. 9 is provided with a brush 107 that is slidably in contact with the filter 102 and a motor 103 on the inner peripheral side of a substantially cylindrical filter 102, and includes a suction port 104 and a discharge port 105. Is free to rotate. When collecting dust in the atmosphere or gas, the dust 106 is collected on the inner peripheral surface of the filter 102 by allowing the gas containing the dust 106 flowing in from the suction port 104 to flow from the inside to the outside of the filter 102. Then, the purified gas flows out from the discharge port 105. When removing the clogging of the filter 102, the dust attached to the inner peripheral surface of the filter 102 is removed by rotating the brush 107 and using the sweeping force.
Japanese Patent Application Laid-Open No. 11-57365 (5th page, FIG. 1) Japanese Patent Laid-Open No. 06-114225 (page 4, FIG. 1)

  As described above, in the conventional dust removing apparatus as shown in Patent Document 1, the centrifugal force applied to each fine dust is a slight force, and it is difficult to completely remove the dust attached to the filter only by the centrifugal force. Therefore, if dust gradually accumulates on the filter and becomes clogged, there is a problem that the pressure loss increases and the ventilation air volume decreases, and there is a problem that maintenance is required, such as periodic replacement or cleaning of the filter. In order to prevent clogging, there is a demand for a dust removing device having filter clogging removal means that has a high filter regeneration effect. Further, since the removed dust is widely scattered in the centrifugal direction on the lower surface of the dust removing device, there is a problem that it takes time to collect and discard the dust.

  Moreover, in the conventional dust removal apparatus as shown in Patent Document 2 as another means for solving this problem, dust is rubbed into the surface of the filter by the pressure contact force of the brush slidingly contacting the filter, When dust accumulates gradually and becomes clogged, there is a problem that pressure loss increases and the air volume of ventilation decreases, and there is a problem that maintenance is required such as periodically replacing or cleaning the filter. In addition, when coarse coarse dust flows in, there is a problem that not only the brush can easily get entangled but also reduce the dust removal power of the brush, but also the filter is clogged immediately and the dust adhesion efficiency of fine dust is reduced. There was a problem that maintenance was required such as replacement or cleaning. Further, since the brush is always in sliding contact with the filter, there is a problem that an excessive torque is applied at the time of starting the rotation, and there is a problem that the torque is reduced at the time of starting the rotation. In addition, since the brush is rotating while being in sliding contact with the filter, there is a problem that noise is generated when the brush rotates, and there is a problem of reducing noise when the brush is operated.

  The present invention solves such a conventional problem, and by providing a centrifugal blower blade on the inside of a substantially cylindrical filter and sliding a brush on the outside of the filter, dust adhered to the filter is filtered. Remove the dust without rubbing it on the surface, collect the removed dust in one place without scattering, and remove coarse coarse dust with the sub filter, so the dust removal power of the brush does not decrease and the fine dust of the main filter As the dust adhesion efficiency does not decrease, the user can reduce the labor and cost of maintenance, provide a dust removal device that reduces the noise generated during dust removal without applying excessive torque during rotation startup. Objective.

In order to achieve the above object, the system of the present invention includes an outer shell, an outdoor vent that communicates with the outside in the outer shell, an indoor vent that communicates indoors, and a driving unit that is driven by the control unit. A main filter formed in a substantially cylindrical shape that is rotated by the driving means, a centrifugal fan that rotates in synchronization with the main filter and discharges indoor air to the outside, and the centrifugal fan. A casing that has a tongue portion that is the closest part to the centrifugal air blowing blade on the outside of the air blowing blade, and a movable casing that slides in contact with the casing after the main filter is rotated. A sweeping means provided with a means for adhering to the outer peripheral surface of the main filter by the centrifugal force due to the rotation of the main filter, the blowing force of the centrifugal blowing blade, and the sweeping means Dust and flicked, as a movable unit, a rotary unit and a wind receiving plate to the discharge side of the casing, sweeping means by wind for the wind receiving plate is subjected is that sliding contact with the main filter.

  Thereby, rotation can be started with low torque, and the dust adhering to the main filter can be reliably removed.

In addition, the other means include an outer shell, an outdoor vent that communicates with the outside in the outer shell, an indoor vent that communicates with the indoor, a driving unit that is driven by the control unit, and a rotating unit that is rotated by the driving unit. A main filter formed in a substantially cylindrical shape, a centrifugal blower blade for rotating the main filter in synchronization with the main filter and discharging indoor air to the outside, and an outer side of the centrifugal blower blade A casing having a tongue that is closest to the centrifugal air blowing blade and having an air passage spread in the direction of rotation of the centrifugal air blowing blade, and a sweeping means comprising a movable means that comes into sliding contact after the main filter rotates is provided flicked dust adhering to the outer peripheral surface of the main filter by the centrifugal force and the blowing force of the centrifugal blower vanes by the rotation of the main filter and said sweeping means, a movable hand As, after recognizing the control unit has increased the number of revolutions of the drive means, in which sliding contact with the linear motion to the main filter by sweeping means reciprocating drive unit.

  Thereby, rotation can be started with low torque, and the dust adhering to the main filter can be reliably removed.

In addition, the other means include an outer shell, an outdoor vent that communicates with the outside in the outer shell, an indoor vent that communicates with the indoor, a driving unit that is driven by the control unit, and a rotating unit that is rotated by the driving unit. A main filter formed in a substantially cylindrical shape, a centrifugal blower blade for rotating the main filter in synchronization with the main filter and discharging indoor air to the outside, and an outer side of the centrifugal blower blade A casing having a tongue that is closest to the centrifugal air blowing blade and having an air passage spread in the direction of rotation of the centrifugal air blowing blade, and a sweeping means comprising a movable means that comes into sliding contact after the main filter rotates is provided flicked dust adhering to the outer peripheral surface of the main filter by the centrifugal force and the blowing force of the centrifugal blower vanes by the rotation of the main filter and said sweeping means, a movable hand As, the control means recognizes the rotational speed of the drive means is increased, in which sweeping means slides over the rotational movement to the main filter by the rotational driving unit.

  Thereby, rotation can be started with low torque, and the dust adhering to the main filter can be reliably removed.

  According to the present invention, the centrifugal force generated by the rotation of the main filter and the centrifugal blower blades cause the airflow to flow in the direction that promotes the centrifugal force, and the dust adhering to the outer peripheral surface of the main filter is rubbed against the filter by the sweeping force of the sweeping means. Therefore, it is possible to provide a dust removing device that reliably removes dust adhering to the main filter.

According to the first aspect of the present invention, there is provided an outer shell, an outdoor vent that communicates with the outside in the outer shell, an indoor vent that communicates with the indoor, a driving device driven by the control device, A main filter formed in a substantially cylindrical shape that is rotated by means, a centrifugal air blowing blade that rotates in synchronization with the main filter and discharges indoor air to the outside, and the centrifugal air blowing blade. A casing having a tongue that is the closest part to the centrifugal blower blade on the outside and having an air passage spread in the rotational direction of the centrifugal blower blade, and a movable means that comes into sliding contact after the main filter rotates. The sweeping means is provided, and the centrifugal force generated by the rotation of the main filter, the blowing force of the centrifugal blower blades, and the dust attached to the outer peripheral surface of the main filter by the sweeping means are removed. And, as the movable means includes a rotating portion and a wind receiving plate to the discharge side of the casing, for sweeping means slides over the main filter by wind to the wind receiving plate receives, from the rotation of the main filter is increased sufficiently Because it is in sliding contact, the main filter that is generated at the start of rotation and the sliding contact start torque of the sweeping means rotate without rotation, and the dust collected by the main filter is centrifuged by the centrifugal force generated by the rotation of the main filter and the centrifugal fan blade. The airflow flows in the direction that promotes the force, and the dust adhering to the outer peripheral surface of the main filter is wiped off without rubbing the filter by the sweeping force of the sweeping means, so the dust adhering to the main filter is surely low torque Remove and regenerate the main filter.

According to the second aspect of the present invention, there is provided an outer shell, an outdoor vent that communicates with the outside in the outer shell, an indoor vent that communicates with the indoor, a driving unit that is driven by a control unit, A main filter formed in a substantially cylindrical shape that is rotated by means, a centrifugal air blowing blade that rotates in synchronization with the main filter and discharges indoor air to the outside, and the centrifugal air blowing blade. A casing having a tongue that is the closest part to the centrifugal blower blade on the outside and having an air passage spread in the rotational direction of the centrifugal blower blade, and a movable means that comes into sliding contact after the main filter rotates. The sweeping means is provided, and the centrifugal force generated by the rotation of the main filter, the blowing force of the centrifugal blower blades, and the dust attached to the outer peripheral surface of the main filter by the sweeping means are removed. And, as the movable means, the control means recognizes the rotational speed of the drive means is increased, since the sweeping means slides over a linear motion to the main filter by reciprocating drive unit, the rotation of the main filter is increased sufficiently Therefore, the main filter that is generated at the start of rotation and the sliding contact start torque of the sweeping means rotate without being applied, and the dust collected by the main filter collects the centrifugal force generated by the rotation of the main filter and the centrifugal fan blade. The airflow flows in the direction that promotes centrifugal force, and the dust attached to the outer peripheral surface of the main filter is removed without rubbing against the filter by the sweeping force of the sweeping means. It has the effect of reliably removing and regenerating the main filter.

According to a third aspect of the present invention, there is provided an outer shell, an outdoor-side vent hole communicating with the outside in the outer shell, an indoor-side vent port communicating with the indoor, a driving means driven by the control means, and the drive A main filter formed in a substantially cylindrical shape that is rotated by means, a centrifugal air blowing blade that rotates in synchronization with the main filter and discharges indoor air to the outside, and the centrifugal air blowing blade. A casing having a tongue that is the closest part to the centrifugal blower blade on the outside and having an air passage spread in the rotational direction of the centrifugal blower blade, and a movable means that comes into sliding contact after the main filter rotates. The sweeping means is provided, and the centrifugal force generated by the rotation of the main filter, the blowing force of the centrifugal blower blades, and the dust attached to the outer peripheral surface of the main filter by the sweeping means are removed. And, as the movable means, the control means recognizes the rotational speed of the drive means is increased, since the sweeping means slides over the main filter and rotary motion by the rotary drive unit, the rotation of the main filter is increased sufficiently Therefore, the main filter that is generated at the start of rotation and the sliding contact start torque of the sweeping means rotate without being applied, and the dust collected by the main filter collects the centrifugal force generated by the rotation of the main filter and the centrifugal fan blade. The airflow flows in the direction that promotes centrifugal force, and the dust attached to the outer peripheral surface of the main filter is removed without rubbing against the filter by the sweeping force of the sweeping means. It has the effect of reliably removing and regenerating the main filter.

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

( Reference form 1)
The configuration of the main body will be described with reference to FIGS. FIG. 1 is a front view of a dust removing apparatus according to Reference Embodiment 1 of the present invention, FIG. 2 is a perspective sectional view of a WW ′ section of FIG. 1, FIG. 3 is a sectional view of a circular brush parallel to a shaft, and FIG. It is sectional drawing of the circular brush perpendicular | vertical to a shaft.

  1 and 2, the outer shell 1 has an outdoor-side vent 2 that sucks outdoor air when supplying outdoor air and an indoor-side vent 3 that supplies outdoor air indoors. It is a member to do. Inside the main body 4 are a main body base 5, a motor 6 as drive means, a control device 7 for controlling the motor 6, a motor base 8 for fixing the motor 6 to the main body base 5, and a shaft 6 a of the motor 6. The fixed centrifugal fan 9, the main filter 10 fixed to the outer diameter side of the centrifugal fan 9, the linear brush 12 as a sweeping means for sweeping off the dust 11 attached to the main filter 10, and the linear brush 12 as a main body A brush base 13 fixed to the base 5, a casing 15 that forms a tongue portion 14 that is the closest part to the centrifugal fan 9, and a centrifugal fan 9 that is fixed to the main body base 5 and sucked when the centrifugal fan 9 operates. A fan suction port 16 serving as a mouth and a circular brush 17 serving as a leakage preventing means fixed to the fan suction port 16 are provided.

  A detailed description will be given with respect to the attachment of each component built in the main body 4. A motor base 8 is firmly attached to the main body base 5 made of a material such as a sheet metal by screws or welding, and the motor 6 that is driven by an AC or DC applied voltage is firmly attached to the motor base 8 by screws or the like. It is attached. A control device 7 for controlling whether or not to apply a voltage to the motor 6 is installed in a space outside the casing 15 with respect to the centrifugal fan 9. A centrifugal fan 9 is fixed to the shaft 6a of the motor 6 with a screw or the like so as to reliably transmit the rotational torque of the motor 6, and the main filter 10 is wound around the outer diameter side of the centrifugal fan 9 so as to have a cylindrical shape. In the axial direction of the shaft 6a, it is sandwiched and fixed to the centrifugal fan 9 by a side plate side filter retainer 18a and a main plate side filter retainer 18b. Here, the centrifugal fan 9 is, for example, a resin or metal fan having a diameter of 170 mm, a fan width of 45 mm, and a rotation MAX of 1300 rpm, and the main filter 10 is, for example, a resin or metal such as PP or PET, or a film. A medium performance filter or a high performance filter configured to collect dust of about 10 μm.

  In FIG. 3, the side plate side filter retainer 18a has a concave cross section having a recess in the axial direction of the shaft 6a, and the recess of the concave cross section is parallel to the axial direction of the shaft 6a at the fan suction port 16. The circular brush 17 fixed to is accommodated. The brush base 13 is firmly attached to the main body base 5 by screws or welding, and the linear brush 12 is tilted so as not to be parallel to the axial direction of the shaft 6a and is fixed by screws or the like so as to contact the main filter 10. ing. The flow path formed by the brush base 13 and the casing 15 constitutes a dust discharge flow path 19 serving as a flow path for discharging the dust 11 removed by the straight brush 12.

  The outer shell 1 will be described. The sub-filter 20 is fixed to the outdoor-side vent 2, the fan suction port 16 fixed to the main body base 5 and the indoor-side vent 3 are connected so that air does not leak, and the indoor-side vent 3 is a duct or the like ( It is connected to an indoor air supply and ventilation device (not shown). Here, the sub-filter 20 is, for example, a coarse filter made of metal having a mesh pitch of about 3 mm and intended to prevent inflow of coarse dust such as insects and fibers contained in outdoor air.

  Next, the operation in the first embodiment will be described. When an indoor air supply and ventilation device (not shown) is operated for indoor ventilation purposes, outdoor air flows into the main body 4 while removing coarse dust 11 by the sub-filter 20, and a fan suction port 16 serving as a fixed body. Since the clearance between the centrifugal fan 9 and the rotating body does not become a ventilation path with the circular brush 17, after removing the dust 11 with the main filter 10 which is the only ventilation path inside the main body 4 and the indoor side vent 3, the indoor side ventilation The air passes through the mouth 3, a duct and the like (not shown) and an air supply and ventilation device (not shown), and is supplied indoors as fresh air. At this time, there is no voltage applied from the control device 7 to the motor 6, and the centrifugal fan 9 to which the main filter 10 connected to the motor 6 is fixed does not operate due to the rotational torque of the motor 6.

  When the air supply and ventilation device (not shown) is continuously operated, the dust 11 adheres to the main filter 10 and the sub filter 20. After operating the air supply ventilator (not shown) for a certain period of time, for example, the air supply ventilator (not shown) is stopped after a day of operation for a certain period of time, and dust 11 adhering to the main filter 10 and the sub filter 20 is removed. The maintenance mode for removing and regenerating the main filter 10 and the sub filter 20 is operated.

  In the maintenance mode, the air supply and ventilation device (not shown) does not operate, so that the inflow of air into the room is eliminated. The centrifugal fan 9 to which the voltage is applied from the control device 7 to the motor 6 and the main filter 10 is fixed rotates by the rotational torque of the motor 6. At this time, the centrifugal force generated by the rotation of the main filter 10 and the blowing force from the indoor side vent 3 to the outdoor side 2 generated by the rotation of the centrifugal fan 9, that is, from the inside to the outside of the main filter 10 The dust 11 attached to the main filter 10 is completely removed from the main filter 10 without being rubbed into the main filter 10 by the wind pressure to the main filter 10 and the sweeping force of the linear brush 12 that is in sliding contact with the main filter 10. The filter 10 can be regenerated.

  The dust 11 removed by the straight brush 12 as the sweeping means is blocked from flowing into the casing 15 by the tongue 14 whose pressure is increased by the operation of the centrifugal fan 9 and passes through the dust discharge passage 19 to the outside. As a result, the dust 11 does not flow into the casing having a high pressure. That is, the swept dust is prevented from flowing into the casing having a high pressure.

  Here, the material of the linear brush 12 is, for example, a soft and thin animal type such as nylon of 0.1 mm or goat and weak waist, and the planted with high density is excellent in the effect of shielding the gap and is main. The resistance load when the filter 10 rotates is also small, and the width of the linear brush 12 is preferably equal to or larger than the fan width of the centrifugal fan 9.

  Further, when the blade 9a is parallel to the axis of the shaft 6a, the linear brush 12 is installed with an inclination of 5 to 20 ° with respect to the shaft 6a. By tilting the linear brush 12, pressure fluctuations generated between the blades 9 a of the centrifugal fan 9 do not interfere with each other at the same timing. Therefore, amplification and resonance are prevented, and pressure fluctuations and interference generated by the linear brush 12. Energy can be dispersed, interference noise can be reduced, and noise can be reduced.

  This effect depends on the linear brush 12 and the blade 9a, and it is important that the relative angle between the linear brush 12 and the blade 9a is 5 to 20 °. For example, the blade 9a is in the axis of the shaft 6a. If they are not mounted in parallel, the same effect can be obtained even if the straight brush 12 is mounted in parallel to the shaft 6a. Here, since the straight brush 12 does not uniformly contact the circular main filter 10 when tilted by 20 ° or more, it is necessary to change the length of the hair of the straight brush 12. Moreover, although the same effect of reducing interference noise can be obtained by configuring the straight brush 12 to be other than a straight line, it is necessary to change the length of the hand in this case as well, so that manufacturing and quality control are costly.

  As a material of the circular brush 17, as in the case of the linear brush 12, for example, nylon and goats such as nylon and goats, which are soft and thin, have a low waist, and the planted with a high density is effective in shielding the gap. It is excellent and the resistance load when the main filter 10 rotates is also small and suitable, and the circular brush 17 fits into the recess of the concave cross section of the side plate side filter retainer 18a as shown in FIG. If the hair side surface of the circular brush 17 is in contact with the wall surface without contacting the lower surface of the concave cross section of the side plate side filter retainer 18a, the dust 11 is not short-circuited to the fan suction port 16 and when the main filter 10 is rotated. Further, since the contact resistance is small, the rotation starting torque of the motor 6 can be suppressed.

  FIG. 4 is a cross-sectional view of a circular brush that is perpendicular to the shaft. Dust 11 is another means that can short-circuit the fan suction port 16 and can suppress the rotation starting torque of the motor 6. As shown in FIG. 4, the side plate side filter retainer 18 a has a concave cross section having a depression on the radially outer peripheral side of the centrifugal fan 9, and the recess of the concave section has a shaft of the shaft 6 a in the fan suction port 16. Even if the circular brush 17 fixed so as to be perpendicular to the direction is accommodated, the dust 11 is not short-circuited to the fan suction port 16 and the same effect of suppressing the rotation starting torque of the motor 6 is obtained. It is done.

  Coarse dust 11 attached to the sub-filter 20 attached to the outdoor vent 2 is discarded to the outside air by the blowing force from the indoor vent 3 to the outdoor vent 2 generated by the rotation of the centrifugal fan 9. By removing the dust, the coarse dust 11 adhering to the sub-filter 20 can be completely removed and the sub-filter 20 can be regenerated.

  As described above, according to the first embodiment, the dust 11 collected by the main filter 10 is subjected to the centrifugal force by the rotation of the main filter 10, the blowing force of the centrifugal fan 9, and the sweeping force by the linear brush 12 as the sweeping means. Thus, the dust 11 attached to the main filter 10 can be reliably removed and the main filter can be regenerated, and the removed dust 11 does not flow into the casing 15 but flows into the dust discharge passage 19. It has the effect of not diffusing inside, can suppress the increase of interference noise due to the pressure fluctuation of the centrifugal fan 9 that occurs when the linear brush 12 is in sliding contact with the main filter 10, and prevents the inflow of coarse dust into the outdoor vent 2. Since the sub filter 20 prevents the main filter 10 from being clogged with coarse dust, the pressure loss of the main filter 10 increases. It can be suppressed, the short circuit of the dust 11 is eliminated, and the dust adhesion efficiency of the main filter 10 is improved, and the sliding contact resistance between the circular brush 17 and the blade side plate is reduced. Further, it is possible to improve the dust adhering efficiency of the main filter 10 because of low torque and no short circuit of the dust 11.

(Embodiment 1 )
The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. The configuration of the main body will be described with reference to FIGS.

FIG. 5 is a front view of a dust removing device in which the movable means in the first embodiment of the present invention is a wind receiving operation device, and FIG. 6 is a front view of the dust removing device in which the movable means in the first embodiment of the present invention is a linear gear portion. FIG. 7 is a front view of a dust removing device in which the movable means according to Embodiment 1 of the present invention is a rotational drive unit.

  In FIG. 6, the brush base 13 is provided with a wind receiving movable device 23 provided with a rotating portion 21 and a wind receiving plate 22 as movable means. The wind receiving movable device 23 can rotate around the rotating portion 21 with respect to the brush base 13 by the rotating portion 21 of the wind receiving movable device 23.

  The dust discharge channel 19 that serves as a channel through which the dust 11 removed by the straight brush 12 is discharged has a structure in which a dust reservoir 24 that stores the dust 11 that has been removed is provided.

Next, the operation in the first embodiment will be described.

  The linear brush 12 is not in contact with the main filter 10 by its own weight except in the maintenance mode. In the maintenance mode, the centrifugal fan 9 to which the voltage is applied from the control device 7 to the motor 6 and the main filter 10 is fixed is rotated by the rotational torque of the motor 6, and the indoor ventilation generated by the rotation of the centrifugal fan 9 is performed. A blowing force is generated from the mouth 3 through the casing 15 to the outdoor side air vent 2. At this time, since the linear brush 12 is not in sliding contact with the main filter 10, the rotating mechanical torque of the motor 6 can be reduced. When the force of the wind receiving plate 22 receiving the blowing force becomes larger than the weight of the linear brush 12, the wind receiving movable device 23 rotates around the rotating portion 21 and the linear brush 12 slides on the main filter 10.

  As a result, the centrifugal force generated by the rotation of the main filter 10 and the blowing force from the indoor side air vent 3 to the outdoor side air vent 2 generated by the rotation of the centrifugal fan 9 are in sliding contact with the main filter 10. Due to the sweeping force of the linear brush 12, the dust 11 adhering to the main filter 10 can be completely removed from the main filter 10, and the main filter 10 can be regenerated. The removed dust 11 is blocked from flowing into the casing 15 by the tongue 14 whose pressure is increased by the operation of the centrifugal fan 9, passes through the dust discharge channel 19, and accumulates the dust 11 in the dust reservoir 24. Can do. That is, the swept dust is prevented from flowing into the casing having a high pressure.

  FIG. 6 shows another means that can reduce the rotating mechanical torque of the motor 6 without the linear brush 12 slidingly contacting the main filter 10 when the motor 6 starts rotation.

  In FIG. 6, the linear gear portion 25 is a portion that is attached to the linear brush 12 as a movable means and is movable with respect to the brush base 13. The brush motor 26 controlled by the control device is a portion fixed to the brush base 13. In the maintenance mode, immediately after the voltage is applied from the control device 7 to the motor 6, the linear brush 12 is not in sliding contact with the main filter 10, so that the rotating mechanical torque of the motor 6 can be reduced. The brush motor 26 determines that the rotation of the motor 6 has increased. For example, in the case of an AC motor, if the input of the motor falls below a certain input by the control device, that is, the slip of the AC motor decreases and the target rotation In the case of a direct current motor, when it is determined that the number of inputs has been reached, when it is determined that the rotation signal of the motor has reached the target number of rotations, a voltage is applied to the brush motor 26 by the control device to rotate the motor. The linear brush 12 is brought into sliding contact with the main filter 10 by the linear brush 12 attached to the linear gear portion 25 that is linearly movable by the brush motor 26.

  This time, the target rotation speed is, for example, 800 rpm, and the air volume is 50 m 3 / h. As a result, the centrifugal force generated by the rotation of the main filter 10 and the blowing force from the indoor side ventilation port 3 to the outdoor side ventilation port 2 generated by the rotation of the centrifugal fan 9, that is, from the inside to the outside of the centrifugal fan 9. The dust 11 attached to the main filter 10 is completely removed from the main filter 10 by the wind pressure to the main body 10 and the sweeping force of the linear brush 12 that is in sliding contact with the main filter 10, and the main filter 10 can be regenerated. .

  FIG. 7 shows another means that can reduce the rotating mechanical torque of the motor 6 without the linear brush 12 slidingly contacting the main filter 10 when the motor 6 starts rotation.

  In FIG. 7, the rotation drive unit 27 is a part that is attached to the linear brush 12 as a movable means and is movable with respect to the brush base 13. The brush motor 26 controlled by the control device is a portion fixed to the brush base 13. In the maintenance mode, immediately after the voltage is applied from the control device 7 to the motor 6, the linear brush 12 is not in sliding contact with the main filter 10, so that the rotating mechanical torque of the motor 6 can be reduced. The brush motor 26 determines that the rotation of the motor 6 has increased. For example, in the case of an AC motor, if the input of the motor falls below a certain input by the control device, that is, the slip of the AC motor decreases and the target rotation In the case of a direct current motor, when it is determined that the number of inputs has been reached, when it is determined that the rotation signal of the motor has reached the target number of rotations, a voltage is applied to the brush motor 26 by the control device to rotate the motor. The linear brush 12 is slidably contacted with the main filter 10 by the linear brush 12 attached to the rotation drive unit 27 that is rotatable by the brush motor 26.

  This time, the target rotation speed is, for example, 800 rpm, and the air volume is 50 m 3 / h. As a result, the centrifugal force generated by the rotation of the main filter 10 and the blowing force from the indoor side air vent 3 to the outdoor side air vent 2 generated by the rotation of the centrifugal fan 9, that is, from the inside of the centrifugal fan 9 to the outside. The dust 11 adhered to the main filter 10 is completely removed from the main filter 10 by the wind pressure and the sweeping force of the linear brush 12 that is in sliding contact with the main filter 10, and the main filter 10 can be regenerated.

As described above, according to the first embodiment, since the linear brush 12 comes into sliding contact after the rotation of the main filter 10 has sufficiently increased, the sliding contact starting torque generated between the main filter 10 and the linear brush 12 when the rotation is started. The dust 11 that rotates without being applied and is collected by the main filter 10 is reduced in torque to the main filter 10 by the centrifugal force generated by the rotation of the main filter 10, the blowing force of the centrifugal fan 9, and the sweeping force of the linear brush 12. The attached dust 11 can be reliably removed, and the dust 11 removed by the linear brush 12 can be collected in one place of the dust reservoir 24 in the dust discharge channel 19.

  INDUSTRIAL APPLICABILITY The dust removal apparatus of the present invention is useful for collecting and purifying floating dust when supplying outdoor air for ventilation and air conditioning of buildings. Further, the present invention can be applied to an air conditioner or an air purifier that is used while circulating indoor air.

The front view which shows the dust removal apparatus of the reference form 1 of this invention The perspective sectional view in the WW 'section which shows the dust removal device of reference form 1 of the present invention Sectional drawing of the circular brush which becomes parallel with the shaft of the dust removal apparatus of the reference form 1 of this invention Sectional drawing of the circular brush perpendicular | vertical to the shaft of the dust removal apparatus of the reference form 1 of this invention The front view which made the movable means of the dust removal apparatus of Embodiment 1 of this invention the wind receiving operation apparatus. The front view which made the movable means of the dust removal apparatus of Embodiment 1 of this invention the linear gear part. The front view which made the movable means of the dust removal apparatus of Embodiment 1 of this invention the rotational drive part. Cross sectional view showing a conventional dust removing device Cross sectional view showing a conventional dust removing device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer 2 Outdoor vent 3 Indoor vent 6 Motor 7 Controller 9 Centrifugal fan 10 Main filter 11 Dust 12 Linear brush 13 Brush base 14 Tongue 15 Casing 16 Fan inlet 17 Circular brush 18a Side plate filter holder 19 Dust Discharge flow path 20 Sub filter 21 Rotating part 22 Wind receiving plate 23 Wind receiving movable device 24 Dust reservoir 25 Linear gear part 26 Brush motor 27 Rotation driving part

Claims (3)

The outer shell, the outer vent in communication with the outdoors, the indoor vent in communication with the indoor, the driving means driven by the control means, and the substantially cylindrical shape rotated by the driving means A main air filter, a centrifugal blower blade for rotating the main filter in synchronism with the main filter and discharging indoor air to the outside, and a close proximity of the centrifugal blower blade to the outside of the centrifugal blower blade A casing having a tongue portion serving as a portion and having an air passage spread in the rotational direction of the centrifugal air blowing blade, and a sweeping means having a movable means that comes into sliding contact after the main filter rotates, the main filter The centrifugal force due to the rotation of the blade, the blowing force of the centrifugal air blowing blade and the dust attached to the outer peripheral surface of the main filter by the sweeping means,
As the movable means includes a rotating portion and a wind receiving plate to the discharge side of the casing, the wind receiving plate filtration apparatus sweeping means you characterized in that sliding contact with the main filter by wind experienced by. The outer shell, the outer vent in communication with the outdoors, the indoor vent in communication with the indoor, the driving means driven by the control means, and the substantially cylindrical shape rotated by the driving means A main air filter, a centrifugal blower blade for rotating the main filter in synchronism with the main filter and discharging indoor air to the outside, and a close proximity of the centrifugal blower blade to the outside of the centrifugal blower blade A casing having a tongue portion serving as a portion and having an air passage spread in the rotational direction of the centrifugal air blowing blade, and a sweeping means having a movable means that comes into sliding contact after the main filter rotates, the main filter flicked dust adhering to the outer peripheral surface of the main filter by said sweeping means and the centrifugal force and the blowing force of the centrifugal blower vanes by the rotation of the movable means, the control means After recognizing the rotational speed of the drive means is increased, the filtration apparatus you characterized in that sliding contact with the linear motion to the main filter by sweeping means reciprocating drive unit. The outer shell, the outer vent in communication with the outdoors, the indoor vent in communication with the indoor, the driving means driven by the control means, and the substantially cylindrical shape rotated by the driving means A main air filter, a centrifugal blower blade for rotating the main filter in synchronism with the main filter and discharging indoor air to the outside, and a close proximity of the centrifugal blower blade to the outside of the centrifugal blower blade A casing having a tongue portion serving as a portion and having an air passage spread in the rotational direction of the centrifugal air blowing blade, and a sweeping means having a movable means that comes into sliding contact after the main filter rotates, the main filter flicked dust adhering to the outer peripheral surface of the main filter by said sweeping means and the centrifugal force and the blowing force of the centrifugal blower vanes by the rotation of the movable means, the control means After recognizing the rotational speed of the drive means is increased, the filtration apparatus you characterized by sweeping means slides over the rotational movement to the main filter by the rotational driving unit.

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