JP2008116158A - Ventilation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily usable ventilation device automatically and periodically removing dirt and dust sticking to a filter for cleaning it and informing a user thereof. <P>SOLUTION: This ventilation device is provided with a fan 3 taking outside air into the interior, a motor 4 rotationally driving the fan 3, a filter 6 arranged between a decorative frame 5 and an air intake 2, and a shutter 8 capable of introducing/blocking air flow from the air intake 2. By the vibration in periodically opening/closing the shutter 8, dust on the filter 6 is removed, while the motor 4 is rotated in the reverse direction for automatically discharging dropped dust to the outside. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a ventilator equipped with a filter for purifying air from the outside used in general households.

  In recent years, it is desirable to constantly ventilate due to the improvement of the airtightness of houses, and there is an increasing need for ventilators that supply mechanically purified air to obtain a stable ventilation volume not only for exhaust but also for supply air. Yes.

  Conventionally, as this type of ventilator, a ventilator attached to an indoor wall surface is known (see, for example, Patent Document 1).

  Hereinafter, the ventilation apparatus will be described with reference to FIG.

  As shown in the drawing, a pipe 104 is mounted in an opening 103 provided in a wall 102 of a house 101, and a frame 107 having an impeller 105 and an electric motor 106 is fixed in the pipe 104 via an elastic member 108. ing. A grill 110 in which a shutter 109 is inscribed is mounted on the impeller 105 side of the frame 107.

In this configuration, when it is desired to purify the air supplied from the outdoor 112 to the indoor 113, a filter 114 is provided between the grill 110 and the shutter unit 109.
JP-A-5-99466

  In such a conventional ventilator, dust and dirt contained in the air from the outdoors 112 are purified by the filter 114 and supplied to the indoor 113, so that the filter 114 is clogged when operated for a long time. Then, since the air supply amount is reduced, there is a problem that the filter 114 must be periodically cleaned.

  The present invention solves such a conventional problem, and is an easy-to-use ventilator that automatically removes dust and dust periodically attached to the filter, cleans it, and regenerates the dust collecting performance of the filter. The purpose is to provide.

  It also informs the user during automatic cleaning, that is, regeneration of the filter's dust collection performance, and automatically cleans, that is, the filter's dust collection performance, when the user must be sleeping and quiet. The purpose is to provide an easy-to-use ventilator that does not regenerate.

  In order to achieve the above object, a ventilator according to the present invention is incorporated into a vent for taking outside air into the room, a fan for taking outside air into the room from the vent, a motor for rotating the fan, and the vent. A filter that collects dust in the air, and filter regeneration means that removes the dust collected by the filter from the filter.

  Another means includes a control unit that controls the rotational drive of the motor, and as the filter regeneration means, the control unit reversely rotates the motor at regular time intervals.

  Further, another means is provided with an operation time counting unit that counts the operation time of the motor, and the control unit rotates the motor in the reverse direction when the count value of the operation time counting unit exceeds a predetermined value.

  Further, another means is provided with a vibration part for vibrating the filter, and the control part repeats the vibration of the filter by the vibration part once or a plurality of times before rotating the motor in the reverse direction.

  In another means, the vibration of the filter by the vibration unit is performed by stopping the operation of the motor by the control unit.

  Another means is provided with a shutter provided between the filter and the ventilation port, which can open and close the flow of air from the ventilation port, and vibrates the filter by opening and closing the shutter by a control unit.

  Another means is that the shutter is provided between the filter and the ventilation opening so that a part of the shutter hits the filter when the shutter is opened.

  According to another means, a protrusion is provided on a part of the shutter so as to hit the filter when the shutter is opened.

  According to another means, an opening through which air can flow even when the shutter is closed is provided below the shutter.

  According to another means, a valve is provided in the opening so as to be closed when outside air flows in a direction in which the outside air enters the room.

  Another means is that, when the filter is regenerated to remove dust collected by the filter from the filter, the control unit changes the rotational drive direction of the motor for a certain time and also changes the rotational speed.

  By these means, dust and dust attached to the filter can be dropped by vibration, and the control unit can rotate the motor in the direction to release the room air to the outside, so that the user can put the dust and dust dropped outdoors. An easy-to-use ventilator that can be cleaned automatically without removing the filter and cleaning is obtained.

  According to another means, the control unit is provided with a clock function so that the vibration of the vibration unit and the cleaning operation are not performed during a predetermined time period.

  By this means, since automatic cleaning is not performed during a predetermined time period such as a night time when the user is sleeping, a ventilation device that is easy to use and does not disturb the user's sleep due to noise due to automatic cleaning Can provide.

  Another means is to display a cleaning operation on the display section during filter regeneration for removing dust collected by the filter from the filter.

  According to another means, a sounding part is provided in the main body, and the sounding part is sounded during filter regeneration for removing dust collected by the filter from the filter.

  According to another means, when the filter regeneration operation for removing dust collected by the filter from the filter is performed a predetermined number of times or more, the filter maintenance display is performed on the display unit.

  According to another means, when the filter regeneration for removing the dust collected by the filter from the filter is performed a predetermined number of times or more, the sounding portion provided in the main body is sounded.

  By these means, it is possible to inform the user that automatic cleaning is in progress, so that the reason for the sound from the ventilator can be understood, and a user-friendly ventilator that does not cause discomfort to the user can be provided.

  According to the present invention, it is possible to provide an easy-to-use ventilation device that can automatically clean the filter periodically and regenerate the dust collection performance of the filter.

  In addition, automatic cleaning during the time when the user is sleeping at night, that is, the dust collection performance of the filter is not regenerated, so that the user's sleep is not disturbed by the noise of the automatic cleaning. Can provide some ventilator.

  In addition, during automatic filter cleaning, the user can be informed that the filter is in the process of regenerating the dust collection performance of the filter. It is possible to provide a ventilation device that is effective in not giving a pleasant feeling.

  According to the first aspect of the present invention, there is provided a ventilation port for taking outside air into the room, a fan for taking outside air into the room from the ventilation port, a motor for driving the fan to rotate, and the air taken from the ventilation port. And a filter regeneration means for removing the dust collected by the filter from the filter. The collected dust is removed from the filter and the filter dust is collected. It is possible to regenerate the collecting performance and improve usability.

  In addition, a control unit for controlling the rotational drive of the motor is provided, and as the filter regeneration means, the control unit reversely rotates the motor at regular time intervals, and dust and dirt attached to the filter at regular time intervals are externally removed. The dust collected and removed is removed from the filter, and the collection performance for collecting the dust on the filter can be regenerated, thereby improving the usability.

  In addition, an operation time counting unit that counts the operation time of the motor is provided, and the control unit reversely rotates the motor when the count value of the operation time count unit exceeds a predetermined value, and counts the operation time. Thus, it has an effect that the cleaning operation can be efficiently performed when dust and dust adhere to the filter to some extent.

  In addition, a vibration unit for vibrating the filter is provided, and the control unit repeats the vibration of the filter by the vibration unit once or a plurality of times before rotating the motor in the reverse direction. After being reliably dropped by vibration, it can be discharged to the outside, and the usability is improved.

  Also, the vibration of the filter by the vibration unit is performed by stopping the motor operation by the control unit, and vibration is generated at the start and stop of rotation due to repeated operation and stop by the motor, and dust and dirt on the filter are caused by vibration. It has the effect that it can be reliably dropped and the dust collecting performance of the filter can be regenerated.

  Further, a shutter provided between the filter and the ventilation port and capable of opening and closing an air flow from the ventilation port is provided, and the filter is vibrated by opening and closing the shutter by a control unit. It has an effect that dust can be reliably dropped by vibration and the dust collecting performance of the filter can be regenerated.

  The shutter is provided between the filter and the vent so that a part of the shutter hits the filter when the shutter is in an open state. It has the effect | action that the dust and dust which adhered by applying a part can be dropped reliably.

  In addition, a protrusion is provided on a part of the shutter so that it contacts the filter when the shutter is in an open state. Has the effect of dropping.

  In addition, an opening that allows air to flow even when the shutter is closed is provided at the lower part of the shutter, so that dust and dust that has fallen from the filter can be efficiently discharged from the opening.

  In addition, a valve that is closed when external air flows in the direction in which the outside air enters the room is provided in the opening, and has an effect that the outside air is not blown when the operation is stopped.

  Further, at the time of filter regeneration of the dust collection performance of the filter that removes the dust collected by the filter from the filter, the control unit changes the rotation driving direction of the motor for a certain time and also changes the rotation speed, It has the effect | action that the dust and dust which adhered to the filter, and the dust and dust which fell from the filter can be discharged | emitted more reliably outside.

  In addition, the control unit is provided with a clock function so that the filter does not vibrate or regenerate the filter during a predetermined time period. Has the effect of not being disturbed.

  In addition, a display unit is provided to display a cleaning operation display on the display unit at the time of regeneration of the dust collecting performance for removing dust collected by the filter from the filter. It has the effect of knowing that it is in a cleaning operation.

  In addition, a sound generation unit is provided in the main body, and the sound generation unit is squeezed at the time of regeneration of the dust collecting performance of the filter that removes dust collected by the filter from the filter. Immediately it is understood that the ventilation device is in a cleaning operation.

  In addition, when the filter regeneration operation for removing the dust collected by the filter from the filter is performed a predetermined number of times or more, the filter maintenance display is performed on the display unit. It has the effect of knowing when to clean the filter.

  In addition, when the filter regeneration operation for removing dust collected by the filter from the filter is performed a predetermined number of times or more, the sounding portion provided in the main body is sounded. It has the effect of knowing the time of care.

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

(Embodiment 1)
As shown in FIGS. 1 and 2, the main body 1 provided with the ventilation port 2 of the ventilation device 30 is attached to an opening 27 provided on an outer wall 23 of a house (not shown). Inside the main body 1 is mounted a motor 4 that rotationally drives a fan 3 that takes the air of the outdoor 25 into the indoor 26 via the ventilation port 2, and improves the appearance of the ventilator 30 on the front surface on the indoor 26 side. A decorative frame 5 is provided with a ventilation slit 22 for the purpose, and a filter 6 for purifying air from the outside in a detachable manner. The shutter 8 capable of opening and closing the air flow from the ventilation port 2 is attached to the main body 1 between the filter 6 and the ventilation port 2 so that a part of the shutter 8 hits the filter 6 when the shutter 8 is opened.

  Below the shutter 8, there are provided an opening 10 through which air can flow even when the shutter is closed, and a valve 11 that closes the opening 10 when air flows from the outdoor 25 to the indoor 26.

  In the lower part of the decorative frame 5, the display unit 13 including the cleaning operation display 14 and the care display 16, the operation switch 28 for stopping the operation of the ventilation device 30, and the number of cleaning operations when the cleaning of the filter 6 is finished. A reset switch 29 for resetting the count is provided.

  In the lower part of the main body 1, there is a control unit 7 that controls a shutter drive unit 20 that opens and closes the shutter 8 by input of the operation switch 28 and a motor drive unit 21 that controls the rotation of the motor 4. Further, the control unit 7 has a counting unit 9 that counts operation time, a clock function unit 12 that counts time, and a cleaning frequency counting unit 31, and displays on the display unit 13 during cleaning operation and maintenance operation. The sounding by the sound generator 17 is also controlled.

  On the outdoor 25 side of the opening 27, a hood 24 that prevents rain from entering the house is attached.

  With the above configuration, the operation of the present invention will be described with reference to the flowchart of FIG.

  The ventilator 30 starts operation when the commercial power is turned on in step 41.

  In step 42, if the operation is set by the operation switch 28 to set whether the user operates or stops the ventilation device 30, the control unit 7 controls the shutter driving unit 20 to open the shutter 8 and The motor drive unit 21 is also controlled to rotate the motor 4 so that the fan 3 takes the air in the outdoor 25 into the indoor 26. In addition, when the motor is stopped, the motor 4 is stopped, and the shutter 8 is also closed so that air from the outdoor 25 does not enter.

  Step 43 is a part for determining whether the ventilator 30 is in an operating state or a stopped state. If it is in operation, go to Step 45 and start the operation time count of the count unit 9 of the control unit 7; The operation time count of the count unit 9 of the going control unit 7 is stopped, and the operation state setting of step 42 is resumed.

  Step 46 is a part for determining whether the count of the count unit 9 of the control unit 7 is S1 or more. If it is S1 or more, the process proceeds to Step 47.

  The cleaning operation interval S1 set at this time is set to the number of days that dust or dust accumulates in the filter 6 in the normal operation, for example, about 30 days, which is about one month. The operation interval of the cleaning operation, that is, the regeneration operation of the dust collecting performance of the filter that removes the dust collected by the filter 6 from the filter 6 may be about 30 days. Here, as a cleaning operation, that is, as a filter regeneration means, the control unit 7 may reversely rotate the motor 4 at regular time intervals of about 30 days to regenerate the dust collection performance of the filter 6.

  Step 47 is a part for determining whether or not the user is sleeping. If the user is not sleeping, the process proceeds to step 48. If the user is sleeping, the process returns to the driving state setting of step 42. Whether or not the user is sleeping is determined by the clock function unit 12 of the control unit 7, and a normal sleep time is set, for example, from 10:00 PM to 6:00 AM as the sleep time.

  In step 48, the control unit 7 sounds the sounding unit 17 and displays the cleaning operation display 14 on the display unit 13 so that the user can understand the vibration by the shutter 8 and the cleaning operation, that is, the regeneration operation of the dust collection performance of the filter 6. Lights up.

  In step 49, the control unit 7 controls the motor drive unit 21 to stop the motor 4 in order to perform a cleaning operation.

  Steps 50 to 54 are operations for dropping dust and dirt on the filter 6 by the vibration of the shutter 8. The OFF time of the shutter 8 is determined in step 51, the ON time is determined in step 53, and the repetition is performed in step 54. The number of times is determined. At this time, the shutter ON / OFF times t1 and t2 are set to a short time for effectively generating vibration, for example, 1 second or less, and the number of repetitions X is set to 1 or more, for example, 10 times. Further, during this operation, the shutter 8 is opened and a part of the shutter 8 is attached to the main body, for example, at a position where the tip of the shutter 8 hits the filter 6, so that dust and dust on the filter 6 can be efficiently dropped.

  Steps 55 and 56 are a cleaning operation, that is, a regeneration operation of the dust collection performance of the filter 6. In step 55, the control unit 7 controls the motor drive unit 21 so that air flows from the indoor 26 to the outdoor 25. Is rotated reversely to the normal time for t3 in step 56. At this time, the cleaning operation time t3 for rotating the motor in the reverse direction is set to a time during which dust or dust that has fallen from the filter 6 due to the vibration of the shutter 8 can be discharged from the opening 10 below the shutter 8 to the outdoor 25, for example, 1 minute or more. The In addition, since the valve 11 is attached to the opening 10 so as to open when air flows from the indoor 26 to the outdoor 25, it opens during the cleaning operation, and when the operation is stopped and the shutter 8 is closed, the valve 11 from the outdoor 25 is opened. Even if there is a wind, the valve 11 closes, so no outside wind enters.

  In step 57, the cleaning operation display 14 that has been informed is turned off and the sounding unit 17 is turned off.

  Step 58 is a portion for determining the number of times of performing the cleaning operation, that is, the regeneration operation of the dust collecting performance of the filter 6.

  The number of times Y that is set at this time is the number of cleaning operations that require cleaning such as cleaning of the filter 6. For example, if S1 is set for 30 days, which is about 1 month, it is set to 6 times, which is about 6 months.

  Step 59 is a step of notifying the user of the maintenance of the filter 6, lighting the maintenance display 16 and causing the sounding part 17 to ring.

  Step 60 is a step in which the ventilation device 30 is stopped until the filter 6 has been cleaned.

  Step 61 is a step in which it is determined whether or not the count number of the cleaning frequency counting unit 31 of the control unit 7 has been reset by the reset switch 29 provided at the lower part of the decorative frame 5. The display 16 is turned off, the sounding unit 17 stops ringing, and the operation state before step 63 is returned to. If not, the operation stop state in step 60 is continued.

  In this way, after the counting unit 9 that counts the operation time of the control unit 7 counts up, the control unit 7 opens and closes the shutter 8 to generate vibration, and a part of the shutter 8 hits the filter 6 so that it adheres. Then, the control unit 7 controls the motor drive unit 21 to rotate the motor 4 in the reverse direction to perform normal cleaning operation to change the air flow by the fan 3 from the indoor 26 to the outdoor 25. Since dust and dust that have fallen down are discharged to the outdoor 25, the filter 6 can be automatically and reliably cleaned, and the usability is improved.

  Further, an opening 10 that allows air to flow even when the shutter 8 is closed below the filter 6 and a valve 11 that closes when air enters from the outdoor 25 are provided in the opening 10, so that the shutter 8 can be efficiently closed. Dust and dust that have fallen from the filter 6 can be discharged to the outside, and even when the ventilator 30 is stopped, the outside wind does not enter from the outside, improving usability.

  Further, the control unit 7 turns on the cleaning operation display 14 of the display unit 13 and the sounding unit 17 during vibrations due to opening and closing of the shutter 8 and cleaning operation, that is, during the regeneration operation of the filter that regenerates the dust collection performance of the filter 6. When the user is informed that automatic cleaning is being performed by sounding or when cleaning is required by cleaning the filter several times, lighting of the sweeping cleaning display 16 on the display unit 13 and the sounding unit 17 Since the user is notified by the ringing, the usability is improved.

  In addition, during the time when the user normally sleeps by the clock function unit 12 of the control unit 7, the vibration by the shutter and the cleaning operation, that is, the regeneration operation of the dust collecting performance of the filter 6 is not performed, so that the user is noisy. This will improve the usability.

(Embodiment 2)
The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 4, the control unit 34 provided in the lower part of the main body 1 controls the rotation speed and the rotation direction of the motor 37 by the motor drive unit 36 that controls the motor 37 that rotationally drives the fan 3. The control unit 34 has an energization time counting unit 35 that counts the energization time.

  With the above configuration, the operation of the present invention will be described with reference to the flowchart of FIG. Steps that perform the same operations as those in Embodiment 1 are denoted by the same steps, and detailed description thereof is omitted.

  Step 70 is a part for determining whether or not the time during which the ventilation device 33 is energized is S2 or more.

  Steps 71 to 75 are steps in which vibration is generated at the start and stop of rotation due to repeated operation and stop by the motor 37, and dust and dust on the filter 6 are dropped by the generated vibration. In step 72, the motor 37 is stopped. The operation time of the motor 37 is determined in step 74, and the number of times is determined in step 75. At this time, t1 and t2 which are ON / OFF times of the motor 37 are set to a short time for effectively generating vibration, for example, 1 second or less, and the number of repetitions X is set to 1 time or more, for example, 10 times.

  Steps 76 to 80 are cleaning operations, that is, a regeneration operation of the dust collection performance of the filter 6. In step 76, the motor 37 and the control unit 34 control the motor drive unit 36, so that the weak operation of reverse rotation of the normal operation is performed. In step 78, the reverse rotation is set to strong operation. Step 77 and step 79 set the time of weak operation and strong operation, respectively, and the set times t7 and t8 are set to 5 to 10 seconds, for example, the wind speed changes by rotation. Step 80 determines the number of times Z of the weak and strong driving repetition Z in the reverse rotation of the motor 37, and the time that the dust and dust that has fallen from the filter 6 can be put out to the outdoor 25 is, for example, about 10 times that is 1 minute or more. Is set.

  In this way, after the energization time counting unit 35 that counts the energization time of the control unit 34 counts up, the control unit 34 turns on and off the motor 37 to generate vibrations and remove dust and dust from the filter 6. Then, since the control unit 34 controls the motor driving unit 36 to rotate the motor 37 in the reverse direction to repeat the strong and weak operation, the filter 6 can be automatically cleaned periodically, and the wind speed changes due to the strong and weak operation. Thus, it is possible to efficiently discharge dust and dust to the outdoor 25, so that usability is improved.

(Embodiment 3)
The same parts as those in the first or second embodiment are denoted by the same reference numerals and detailed description thereof is omitted.

  As shown in FIG. 6, the shutter 38 that can open and close the flow of air from the ventilation port 2 is attached to the main body 1 between the filter 6 and the ventilation port 2. The shutter 38 is provided with a protruding portion 39 corresponding to the filter 6 when the shutter 38 is opened.

  In the above configuration, when the shutter 38 is opened and closed, the protruding portion 39 hits the filter 6, so that the dust and dirt adhering to it efficiently fall. Even in the shutter open state during normal operation, the portion corresponding to the filter 6 is reduced, so that the air resistance is reduced and the efficiency of the motor 4 is improved.

  In this way, dust and dust attached to the filter 6 can be efficiently dropped, the dust collecting performance of the filter 6 can be regenerated, and the efficiency of the motor 4 can be improved, so that energy saving and usability are improved.

  Since it is possible to provide an easy-to-use ventilation device that can automatically clean the filter and automatically regenerate the dust collection performance of the filter with a simple configuration, it can also be applied to equipment for equipment equipped with the ventilation device.

Sectional drawing of the ventilation apparatus of Embodiment 1 of this invention Front view of the ventilation device Flow chart showing operation of the ventilator Sectional drawing of the ventilation apparatus of Embodiment 2 of this invention Flow chart showing operation of the ventilator Sectional drawing of the ventilation apparatus of Embodiment 3 of this invention Cross-sectional view of a conventional ventilation device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Ventilation port 3 Fan 4 Motor 5 Makeup frame 6 Filter 7 Control part 8 Shutter 9 Count part 10 Opening part 11 Valve 12 Clock function part 13 Display part 14 Cleaning operation display 16 Maintenance display 17 Sound generation part 34 Control part 37 Motor 38 Shutter 39 Projection

Claims (16)

A ventilation port for taking outside air into the room, a fan for taking outside air into the room from the ventilation port, a motor for rotating the fan, and a filter for collecting dust in the air taken from the ventilation port, A ventilation device comprising filter regeneration means for removing dust collected by the filter from the filter. The ventilator according to claim 1, further comprising a control unit that controls rotational driving of the motor, wherein the control unit reversely rotates the motor at regular time intervals as filter regeneration means. The ventilating apparatus according to claim 2, further comprising an operation time counting unit that counts an operation time of the motor, wherein the control unit reversely rotates the motor when a count value of the operation time counting unit is equal to or greater than a predetermined value. The ventilation device according to claim 2 or 3, wherein a vibration unit that vibrates the filter is provided, and the control unit repeats the vibration of the filter by the vibration unit once or a plurality of times before rotating the motor in the reverse direction. The ventilator according to claim 4, wherein the vibration of the filter by the vibration part is performed by stopping the operation of the motor by the control part. The ventilator according to claim 4, wherein a shutter is provided between the filter and the ventilation port and capable of opening and closing an air flow from the ventilation port, and the filter is vibrated by opening and closing the shutter by a control unit. The ventilator according to claim 6, wherein the shutter is provided between the filter and the ventilation opening so that a part of the shutter hits the filter when the shutter is opened. The ventilator according to claim 6, wherein a protrusion is provided on a part of the shutter so as to hit the filter when the shutter is opened. The ventilator according to any one of claims 4 and 6 to 8, wherein an opening that allows air to flow even when the shutter is closed is provided below the shutter. The ventilator according to claim 9, further comprising a valve that is closed when air flows in the opening in a direction in which outside air enters the room. The ventilator according to any one of claims 2 to 9, wherein when the filter is regenerated to remove dust collected by the filter from the filter, the control unit changes the rotation driving direction of the motor for a certain period of time and also changes the rotation speed. The ventilation device according to any one of claims 2 to 11, wherein a clock function is provided in the control unit, and the vibration of the filter or the regeneration of the filter by the vibration unit is not performed during a predetermined time period. The ventilation device according to any one of claims 1 to 12, wherein a display unit is provided, and a cleaning operation display is displayed on the display unit during filter regeneration in which dust collected by the filter is removed from the filter. The ventilation device according to any one of claims 1 to 13, wherein a sound generation unit is provided, and the sound generation unit is caused to ring during filter regeneration in which dust collected by the filter is removed from the filter. The ventilation according to any one of claims 1 to 14, wherein when the filter regeneration operation for removing dust collected by the filter from the filter is performed a predetermined number of times or more, the filter maintenance display is performed on the display unit. apparatus. The ventilator according to any one of claims 1 to 15, wherein a sounding portion provided in the main body is sounded when a filter regeneration operation for removing dust collected by the filter from the filter is performed a predetermined number of times or more.

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