KR20210145636A - Appratus for purifying indoor air of vehicle - Google Patents

Abstract

The present invention is to provide an air purifier for a vehicle, capable of switching the operation of a driving motor of a blower fan of the air purifier to a minimum noise mode by recognizing a vehicle's stopped state. According to the present invention, the air purifier for a vehicle, installed in the interior of a vehicle, comprises: a housing (10) which has an air intake port for sucking air in the interior of the vehicle and an air discharge port for discharging air, and is mounted in the interior of the vehicle; a filter unit (20) installed in a flow path between the air intake port and the air discharge port in the housing to purify the air; a blower fan (30) which is installed in the flow path between the air intake port and the air discharge port in the housing, and sucks air from the air intake port and discharges the air to the air discharge port; a driving motor (40) installed in the housing and driving the blower fan; and a control part (50) for controlling the operation of the driving motor by recognizing the stopped state of the vehicle.

Description

Vehicle air purifier {APPRATUS FOR PURIFYING INDOOR AIR OF VEHICLE}

The present invention relates to an air purifier for a vehicle, and more particularly, to an air purifier for a vehicle capable of recognizing a vehicle's vehicle stop state and switching the operation of a driving motor of a blower fan of the air purifier to a minimum noise mode.

In general, air flowing into the interior of the vehicle from the outside of the vehicle is filtered by the filter of the air cleaner and supplied to the interior of the vehicle, but it is difficult to completely filter out yellow dust or fine dust in the air, and it is present in the interior of the vehicle. Air pollution in the interior of the car is further aggravated by various bacteria and mold that cause a lot of bad smell. In addition, since the interior of the vehicle is relatively narrow and sealed, the air in the interior of the vehicle quickly becomes turbid, and carbon monoxide emitted by the driver and passengers is accumulated, which causes drowsy driving.

In particular, in recent years, the frequency of occurrence of yellow dust and ultrafine dust has increased and the air quality has deteriorated. As a countermeasure against this, air purifiers are provided in indoor spaces such as homes and offices, and air purifiers for vehicles and air purifiers are used. Technology for purifying the indoor air of a vehicle has been continuously developed.

For example, Korean Patent Registration No. 10-0665926 shown in FIG. 1 discloses a technology related to an indoor air purifier for a vehicle that purifies the air while controlling the amount of negative ions generated according to the degree of pollution of the indoor air of the vehicle.

In addition, Korean Patent Laid-Open No. 10-2018-0047162 shown in FIG. 2 discloses a technology related to an air purification device for a vehicle in which a filter cartridge includes a deodorizing filter, a photocatalyst, a fragrance, a filter sterilizing member, and the like.

In addition, Korean Patent Application Laid-Open No. 10-2018-0076392 shown in FIG. 3 discloses a technology related to an air purifier for a vehicle including a pre-treatment filter, an electrostatic precipitation filter, a UVLED photocatalytic filter, and the like.

In general, the prior art vehicle air purifier or air purifier as described above has a built-in armrest near the driver's seat in the vehicle interior, the ceiling of the vehicle or the back of the driver's seat and/or passenger seat, or the rear of the rear seat. ) method or attachment type, or installed in an appropriate location in the vehicle interior.

On the other hand, one of the most important factors in the quality of a passenger car is the noise level measured inside the vehicle, and while the vehicle is driving, the sound of wind, wind noise, and booming noise that collides with the exterior surface of the vehicle body. , and various noises such as tire noise generated by contact with the road surface are generated. Therefore, a relatively small noise generated inside a vehicle is often not well detected by a driver or a passenger. However, when the vehicle in motion temporarily stops or the vehicle in motion temporarily stops due to a signal stop, the ISG (idle stop & go) system activates and the engine is turned off. Even if it is, it is annoying to the ears of the driver or passengers. In particular, the vehicle air purifier or air purifier has no choice but to be installed inside the vehicle due to the characteristic of purifying the air inside the vehicle, and purifies the air while circulating the air inside the vehicle through the air purifier. The driving motor of the fan is essential, and even if a low-noise motor having a relatively low operating noise is used, it is unavoidable to generate an annoying noise to the driver or passengers due to the rotation of the blower fan.

As described above, technologies for improving the air purification ability of a vehicle air purifier or air purifier have been continuously developed, but a technology capable of reducing or removing the rotation noise of the blower fan of the vehicle air purifier has not been developed.

SUMMARY OF THE INVENTION The present invention is to solve the above problems, and an object of the present invention is to provide an air purifier for a vehicle capable of recognizing a vehicle's stationary state and switching the operation of the driving motor of the blower fan of the air purifier to the minimum noise mode. will provide However, these problems are exemplary, and the scope of the present invention is not limited thereto.

According to one embodiment of the present invention for achieving the above object, an air purifier for a vehicle mounted inside a vehicle has an air intake port for sucking air in the interior of the vehicle and an air discharge port for discharging air, a housing mounted indoors; a filter unit installed in a flow path between the air inlet and the air outlet in the housing to purify the air; a blower fan installed in a flow path between the air inlet and the air outlet in the housing, the fan sucking air from the air inlet and discharging the air to the air outlet; a driving motor installed in the housing and driving the blowing fan; and a control unit for recognizing a vehicle stop state and controlling operation of the driving motor.

In the air purification apparatus for a vehicle according to an embodiment of the present invention, when a vehicle stop recognition signal is sent to the control unit, the control unit may convert the driving of the driving motor to a minimum noise mode.

In addition, in the air purifier for a vehicle according to an embodiment of the present invention, the vehicle stop recognition signal may be generated when the vehicle is stopped and the engine is turned off by the operation of the ISG.

In addition, in the air purification apparatus for a vehicle according to an embodiment of the present invention, the vehicle stop recognition signal may be generated when the speedometer indicates "0" when the vehicle in motion is stopped.

In addition, in the air purifying apparatus for a vehicle according to an embodiment of the present invention, the controller may switch to a minimum noise mode to stop the rotation of the blower fan by stopping the operation of the driving motor.

In addition, in the air purifier for a vehicle according to an embodiment of the present invention, the controller may convert the driving motor to the lowest speed to switch to the minimum noise mode.

In addition, in the air purifier for a vehicle according to an embodiment of the present invention, the filter unit may have a filter unit replaceable.

In addition, in the air purifier for a vehicle according to an embodiment of the present invention, the air purifier for a vehicle may be mounted in the interior of the vehicle in a buried type, a built-in type, or a mounting type.

According to another embodiment of the present invention, there is provided a control method of an air purifier for a vehicle, comprising: a housing having an air intake port for sucking air in the interior of the vehicle and an air discharge port for discharging air; a filter unit installed in a flow path between the air inlet and the air outlet in the housing to purify the air; a blower fan installed in a flow path between the air inlet and the air outlet in the housing, the fan sucking air from the air inlet and discharging the air to the air outlet; a driving motor installed in the housing and driving the blowing fan; and a control unit for controlling the operation of the driving motor, the vehicle stop recognition signal when 1SG of the vehicle is in operation or when the speed of the vehicle speedometer indicates “0” creating a; when the signal generated in the vehicle stop recognition signal generating step is received by the controller, stopping the operation of the driving motor to stop the rotation of the blower fan; and when the control unit receives the driving recognition signal of the vehicle, restarting the driving of the driving motor to rotate the blowing fan.

According to another embodiment of the present invention, there is provided a control method of an air purifier for a vehicle, comprising: a housing having an air intake port for sucking air in the interior of the vehicle and an air discharge port for discharging air; a filter unit installed in a flow path between the air inlet and the air outlet in the housing to purify the air; a blower fan installed in a flow path between the air inlet and the air outlet in the housing, the fan sucking air from the air inlet and discharging the air to the air outlet; a driving motor installed in the housing and driving the blowing fan; and a control unit for controlling the operation of the driving motor, the vehicle stop recognition signal when 1SG of the vehicle is in operation or when the speed of the vehicle speedometer indicates “0” creating a; when the signal generated in the vehicle stop recognition signal generating step is received by the control unit, converting the driving motor to a minimum speed to switch to a minimum noise mode; and when the control unit receives the driving recognition signal of the vehicle, restarting the driving of the driving motor to switch to the normal driving.

According to an embodiment of the present invention made as described above, the operation of the driving motor of the blower fan of the air purifier can be switched to the minimum noise mode by recognizing the vehicle's stopped state, so that the driver or passenger feels the vehicle air purification. It is possible to remarkably reduce the operating noise of the device. Of course, the scope of the present invention is not limited by these effects.

1 is a schematic exploded perspective view of a vehicle air purifier of the prior art.
2 is a schematic cross-sectional view of a vehicle air purifier of the prior art.
3 is a schematic plan cross-sectional view of a prior art armrest-mounted vehicle air purifier.
4 is a functional block diagram of an air purifier for a vehicle according to an embodiment of the present invention.
5 is an operation flowchart of an air purifier for a vehicle according to an embodiment of the present invention.
6 is an operation flowchart of an air purifier for a vehicle in a driving mode according to an embodiment of the present invention.
7 is a schematic exploded perspective view of an air purifier for a vehicle according to an embodiment of the present invention.
8 is a cross-sectional view taken along line AA of the air purifier for a vehicle of FIG. 7 .
9 is a view showing an air flow direction in an air purifier for a vehicle according to an embodiment of the present invention.

The objects, features and advantages of the present invention described above will become more apparent through the following examples in conjunction with the accompanying drawings.

The specific structural or functional descriptions below are only exemplified for the purpose of describing embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention may be implemented in various forms and described in the present specification or application. It should not be construed as being limited to the examples.

Since the embodiment according to the concept of the present invention may have various changes and may have various forms, specific embodiments are illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiments according to the concept of the present invention to a specific disclosed form, and should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms such as first and/or second may be used to describe various elements, but the elements are not limited to the terms. The above terms are used only for the purpose of distinguishing one component from other components, for example, without departing from the scope of rights according to the concept of the present invention, a first component may be named as a second component, and similar The second component may also be referred to as the first component.

When it is said that a certain element is "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in between. will have to be understood On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle. Other expressions for describing the relationship between elements, that is, expressions such as “between” and “immediately between” or “adjacent to” and “directly adjacent to”, should be interpreted similarly.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. As used herein, terms such as “comprise” or “have” are intended to designate that the described feature, number, step, action, component, part, or combination thereof is present, and includes one or more other features or numbers, It should be understood that the existence or addition of steps, operations, components, parts or combinations thereof is not precluded in advance.

Unless defined otherwise, all terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. does not

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

4 is a block diagram of an air purifier for a vehicle according to an embodiment of the present invention, FIG. 5 is a flowchart of an operation of the air purifier for a vehicle according to an embodiment of the present invention, and FIG. 6 is an embodiment of the present invention It is an operation flow chart in the driving mode of the air purification device for a vehicle according to the following.

In the air purifier 100 for a vehicle according to an embodiment of the present invention, the housing 10 includes a blower fan 30, a driving motor 40, a filter unit 20, and a sensor unit which are internal components of the air purifier. , which accommodates an operation unit, a display unit, and the like, and has at least one air inlet 11 and at least one air outlet 12 .

The filter unit 20 accommodated in the housing is installed in the flow path between the air inlet 11 and the air outlet 12, and purifies the air circulating in the flow path.

The blower fan 30 accommodated in the housing is installed in the flow path between the air inlet 11 and the air outlet 12, and the air inside the vehicle flows in from the air inlet and discharges the air through the air outlet. do.

The driving motor 40 accommodated in the housing drives the blowing fan. The output shaft of the driving motor may be directly coupled to the rotating shaft of the blowing fan, or the driving motor may be driven through a power transmission device (not shown) such as a belt. The rotational force of the output shaft may be transmitted to the rotation shaft of the blower fan.

Air in the vehicle interior is introduced through the air intake port by the rotation of the blower fan 30 by the driving motor 40 and discharged through the air exhaust port, whereby the air in the vehicle interior repeatedly circulates through the air purifier 100 In the process of passing through the filter unit 20, the air inside the vehicle is purified. Accordingly, the filter member of the filter unit 20 needs to be replaced or cleaned at a predetermined cycle. In the filter unit 20 of the vehicle air purifier 100 of the present invention, the filter member may be of a replaceable cartridge type.

The control unit 50 accommodated in the housing 10 controls the operation of the driving motor by recognizing the vehicle's stopped state. Here, the control unit 50 may be installed on the outer surface of the housing 10 , and is installed in the interior of the vehicle away from the housing 10 to remotely operate the driving motor 40 of the blower fan 30 . can also be controlled.

The operating noise of the blower fan and the blower fan driving motor of the vehicle air purifier installed inside the vehicle is relatively quiet. It is difficult for a driver or a passenger to recognize the operating noise of the vehicle air purifier. However, since noise such as wind noise, wind noise, tire noise, or booming noise is not generated when the vehicle is stopped, the driver or passenger starts to sense the operation noise of the vehicle air purifier. Accordingly, the inventor of the present application solves the problem that, when the control unit of the vehicle air purification system recognizes the vehicle's stationary state and switches the driving motor to the minimum noise mode, the operating noise of the vehicle air purification system is annoying to the driver or passengers. I figured it could be solved.

In the air purification apparatus 100 for a vehicle according to an embodiment of the present invention, the vehicle stop recognition signal may be generated when the engine is turned off by the operation of an idle stop & go (ISG) after the vehicle in motion is stopped. ISG is also called auto stop-and-go or stop-and-go, which is a technology that turns off the engine for a while while the vehicle is stopped and then restarts the engine when starting. The application of the ISG is gradually expanding in order to reduce the soot generated from the engine of the vehicle and reduce fuel consumption.

In addition, in the vehicle air purification apparatus 100 according to an embodiment of the present invention, the vehicle stop recognition signal may be generated when the vehicle in motion is stopped and the speed of the speedometer (not shown) indicates “0”. . When the vehicle in motion is stopped due to waiting for a signal, etc., the engine is started, but the vehicle is stopped, so noise such as wind noise, tire noise, and booming noise generated while driving is not generated, so that the driver or occupant Since it is possible to better hear the operation noise of the vehicle's air purifier, the vehicle's stop recognition signal is generated.

As described above, when the vehicle stop recognition signal is generated and sent to the control unit, the operation of the driving motor 40 of the vehicle air purifier 100 is switched to the minimum noise mode.

According to the air purifier 100 for a vehicle according to an embodiment of the present invention, the minimum noise mode can be achieved by stopping the operation of the driving motor 40 to stop the rotation of the blowing fan 30 . In the case of driving on a highway or automobile-only road due to the driving characteristics of the vehicle, when the ISG operates or the vehicle speedometer indicates “0”, the vehicle enters a place where the vehicle can park or stop, such as a rest area or drowsiness shelter. In this case, since the time for which the 'vehicle stop recognition signal' according to the present invention is generated is only a fairly short time, the rotation of the blower fan 30 of the vehicle air purifier 100 is stopped during that time. Even if the air purifier 100 does not operate, a phenomenon in which the air quality in the vehicle interior deteriorates does not cause inconvenience to the driver or passengers.

In addition, when the vehicle is driving in the city, even if the vehicle stop recognition signal according to the present invention is generated relatively frequently due to signal waiting, the vehicle stop time compared to the total driving time is not very long, so the Even if the rotation of the blower fan 30 of the vehicle air purifier 100 is stopped for a period of time and the air purifier 100 does not operate, the quality of the air in the vehicle deteriorates and the driver or passengers feel uncomfortable. does not

As described above, by stopping the operation of the vehicle air purifier for a relatively short period of time compared to the total driving time of the vehicle, noise generated from the air purifier can be completely removed, thereby solving the driver's or occupant's dissatisfaction with the vehicle interior noise. it can be

On the other hand, according to the air purification apparatus 100 for a vehicle according to another embodiment of the present invention, the minimum noise mode can be achieved by converting the operation of the driving motor 40 to the lowest speed.

Here, the term "minimum speed driving of the driving motor" means that when the vehicle in motion is stopped and the speed of the speedometer indicates "0", the driver or occupant rotates the blower fan of the vehicle air purifier by the engine driving noise of the vehicle. It refers to the operation of a low-speed driving motor at a level that makes it difficult to detect noise. The minimum speed operation of the driving motor of the air purifier for a vehicle may be set differently depending on the vehicle.

In the case of driving on a highway or automobile-only road due to the driving characteristics of the vehicle, the speedometer of the vehicle indicating “0” may occur when the vehicle enters a place where the vehicle can park or stop, such as a rest area or a rest area for drowsiness. Therefore, since the time for which the 'vehicle stop recognition signal' according to the present invention is generated is only a fairly short time, the driving motor of the vehicle air purifier operates at the lowest speed during that time, so that the air purifying ability of the air purifier is reduced. Even if it decreases, there is no phenomenon that the driver or passengers feel uncomfortable due to the deterioration of the air quality inside the vehicle.

In addition, when the vehicle is driving in the city, even if the vehicle stop recognition signal is generated relatively frequently due to signal waiting, the vehicle stop time compared to the total driving time is not very long. Even if the driving motor of the purifier is operated at the lowest speed and the air purifying ability of the air purifier is reduced, there is no phenomenon in which the driver or passengers feel inconvenience due to deterioration of the air quality in the vehicle interior.

As described above, by maintaining the operation of the driving motor of the vehicle air purifier at the lowest speed for a relatively short period of time compared to the total driving time of the vehicle, the driver or occupant cannot detect the noise generated from the air purifier, so that the vehicle interior noise It is possible to resolve the complaints of drivers or passengers about

The air purifier 100 for a vehicle according to an embodiment of the present invention may be accommodated and mounted in an appropriate location inside the vehicle in a built-in manner or may be installed in an attachable manner. For example, it may be accommodated and mounted on the cover of a console box disposed next to the driver's seat of the vehicle, may be attached to an armrest near the driver's seat, may be embedded in the ceiling of the vehicle, may be mounted on the driver's seat and/or Alternatively, it may be installed in a built-in method or attached to the rear of the passenger seat. In addition, it may be attached to the rear of the rear seat seat, may be installed in a manner to be accommodated in the coaster next to the driver's seat, or may be accommodated or attached in other ways.

Next, with reference to FIG. 4, the function of the air purifier for a vehicle according to an embodiment of the present invention will be described.

The control unit 50 of the air purifier for a vehicle according to an embodiment of the present invention basically responds to the information of the indoor pollution state (PM 2.5 ultrafine dust concentration standard) transmitted from the fine dust sensor 70 in the vehicle interior. It automatically controls the air volume of the air purification according to it.

In addition, the control unit 50 of the air purifier controls the operation of the blower fan 30 by receiving the vehicle stop recognition signal, and the vehicle stop recognition signal indicates that the ISG operation signal or speedometer speed is “0”. It could be a signal.

As described above, the vehicle air purifier 100 according to the present invention is automatically operated by sensing the degree of pollution in the interior of the vehicle. is operated in the minimum noise driving mode, but the air purifier 100 for a vehicle of the present invention may be operated manually. As shown in FIG. 5 , when the operation mode of the air purifier is OFF, the operation of the air purifier is stopped, and when the operation mode is set to AUTO, as shown in FIG. 6 to be described later, the operation of the air purifier is This is done automatically. In addition, when the operation mode of the air purifier is manual, the air purifier may be operated in the first, second, or third stage by the operation of the driver or the passenger. After manually operating the air purifier for a predetermined time by the manual operation of the driver or passenger, the AUTO operation mode is executed to automatically operate the air purifier.

In the air purifier 100 for a vehicle according to an embodiment of the present invention, the vehicle may be operated in the AUTO driving mode when the vehicle is initially started, and the driving mode that was operated before turning off the vehicle is stored in the driving mode. can work

Next, an AUTO operation mode of the air purifier 100 according to an embodiment of the present invention will be described.

As shown in FIGS. 4 and 6 , the fine dust sensor 70 provided in the vehicle air purifying device 100 of the present invention detects the state of the air in the vehicle, and then displays the related state for each air state. . For example, if the amount of PM 2.5 ultrafine dust in the vehicle is less than 15 μg/㎥, it is displayed in blue (good), and when the amount of PM 2.5 ultrafine dust is 16 to 35 μg/㎥, it is displayed in green (normal). ), marked as bad (orange) when the amount of PM 2.5 ultrafine dust is 36 ~ 75 ㎍/㎥, and bad (red) when the amount of PM 2.5 ultrafine dust is 76 ㎍/㎥ or more. can be displayed Seeing the display state of fine dust in the interior of the vehicle, if necessary, the driver or passenger operates the air purifier 100 at the maximum output (eg, in the power operation mode) to improve the air quality in the vehicle interior within a short time. can make When the driver or passenger switches to the AUTO operation mode of the air purification apparatus 100 after the power operation mode is operated, the normal operation of the air purification apparatus 100 according to an embodiment of the present invention is performed. In this AUTO driving mode, when a vehicle stop recognition signal (eg, ISG or a signal generated when the vehicle speed is "0") is received by the control unit 50, the blower fan 30 of the air purifier 100 ) is operated in the minimum noise mode. In the minimum noise mode of the blowing fan 30, the operation of the driving motor 40 is stopped and the rotation of the blowing fan is stopped, or at a low speed at a level at which it is difficult for the driver or passenger to sense the rotation noise of the blowing fan of the vehicle air purifier. The lowest speed operation of the driven driving motor 40 is performed.

As shown in FIG. 7 , the air purifier 100 for a vehicle according to an embodiment of the present invention includes a filter unit 20 in a housing 10 having one or more air inlets 11 and one or more air outlets 12 . ), a blowing fan 30 , a driving motor 40 and a control unit 50 are provided. In addition, the air purifying apparatus 100 for a vehicle according to an embodiment of the present invention may further include a manipulation unit and a display unit 60 , and a fine dust sensor 70 .

8 is a cross-sectional view taken along line A-A of the vehicle air purifier 100 of FIG. 7 . As shown in FIG. 8 , the filter unit 20 is disposed below the blowing fan 30 and the driving motor 40 , and the air inlet 11 is disposed below the filter unit 20 , and the air outlet (12) may be disposed on the side of the blowing fan (30). The arrangement of each component of the air purifying device 100 of the present invention is not limited to the arrangement shown in FIGS. 7 and 8 and may be arranged in other ways, of course.

9 is a view showing an air flow direction in the vehicle air purifier 100 of FIG. 7 . As shown in FIG. 9 , the air in the vehicle interior is introduced through the air intake 11 by the suction force of the blower fan 30 , and the air introduced through the air intake 11 passes through the filter unit and then , is discharged into the vehicle interior through the air outlet 12 . As the air in the vehicle continues to pass through the filter unit 20 of the air purifier by this air circulation in the vehicle, the air in the vehicle is purified.

Next, with reference to FIG. 6, the control method of the air purifier for a vehicle of the present invention will be described.

According to another embodiment of the present invention, the housing 10 having an air inlet for sucking air in the interior of the vehicle and an air outlet for discharging air; a filter unit 20 installed in a flow path between the air inlet and the air outlet in the housing to purify the air; a blower fan (30) installed in the flow path between the air inlet and the air outlet in the housing, sucking air from the air inlet and discharging the air to the air outlet; a driving motor 40 installed in the housing and driving the blowing fan; And the control method of the air purifier 100 for a vehicle including a control unit (C) for controlling the operation of the driving motor is performed as follows.

First, in the control method of the vehicle air purifier 100 of the present invention, when 1SG of the vehicle is in operation or when the speed of the vehicle speedometer indicates "0", a vehicle stop recognition signal is generated (S10) . The ISG of a vehicle is to turn off the engine while the vehicle in motion is temporarily stopped due to waiting for a signal, and then restart the engine when starting. Not only that, but also noises such as wind noise, tire noise, and booming noise generated while driving are not generated. In addition, when the vehicle in motion is stopped due to waiting for a signal, the engine is started, but since the vehicle is stopped, noises such as wind noise, tire noise, and booming noise generated during driving do not occur. As such, when 1SG of the vehicle is in operation or when the speed of the vehicle's speedometer indicates "0", even a small noise generated in the interior of the vehicle can be easily detected by the driver or occupant. ) to generate a vehicle stop recognition signal in order to convert the operation of the driving motor 40 to the minimum noise mode.

When the vehicle stop signal generated in step S10 is received by the control unit 50, the rotation of the driving motor 40 is stopped to stop the rotation of the blower fan 30 (S20). The time when the vehicle in motion is stopped and the speedometer indicates “0” or the time when the ISG is in operation is not very long compared to the total driving time. Even if the air purifier does not operate due to this stop, it is not a problem because the quality of the air in the vehicle does not deteriorate to the extent that the driver or passengers feel uncomfortable.

Next, when the vehicle starts driving again and the operation of the ISG is stopped or the speed of the speedometer becomes “0” or higher, a driving recognition signal of the vehicle is generated (S30) and when the controller 50 receives it, the air purifier The operation of the driving motor 40 of (100) is resumed to rotate the blowing fan (30). When the vehicle resumes driving, vehicle driving noise, including wind noise, wind noise, tire noise, and booming noise, flowing outside the vehicle body while the vehicle is driving, is generated again. is in a state that is difficult for the driver or passengers to detect.

Next, operation in the minimum noise mode converted to the minimum speed operation of the driving motor 40 in the vehicle air purification apparatus 100 according to another embodiment of the present invention will be described.

In the control method of the vehicle air purifier 100 of the present invention, a vehicle stop recognition signal is generated when 1SG of the vehicle is in operation or when the speed of the vehicle speedometer indicates "0" (S10).

When the vehicle stop signal generated in step S10 is received by the control unit 50, the driving motor is converted to the lowest speed and switched to the minimum noise mode (S20). The time when the vehicle in motion is stopped and the speedometer indicates “0” or the time when the ISG is operating is not very long compared to the total driving time. Even if the air purifying ability of the air purifier is reduced due to driving inside the vehicle, it is not a problem because the quality of the air inside the vehicle does not deteriorate to such an extent that the driver or passengers feel uncomfortable.

Next, when the vehicle starts driving again and the operation of the ISG is stopped or the speed of the speedometer becomes “0” or higher, a driving recognition signal of the vehicle is generated (S30) and when the controller 50 receives it, the air purifier The operation of the driving motor 40 in (100) is switched to the normal operation mode to rotate the blowing fan 30 in the normal operation state. When the vehicle resumes driving, vehicle operation noise, including wind noise, wind noise, tire noise, and booming noise, flowing outside the vehicle body while the vehicle is driving, is generated again. It becomes difficult for the driver or passengers to detect the operation noise of the air purifier operating in the air purifier.

According to the present invention, when the vehicle in motion temporarily stops or the vehicle in motion temporarily stops due to a signal stop, etc. In order to prevent small noises such as the rotation noise of the air purifier's blower fan generated inside the vehicle from disturbing the driver's or passengers' ears, it recognizes the vehicle's stationary state and stops the operation of the driving motor of the air purifier's blower fan or minimizes noise. mode, the technical idea of the present invention can be directly applied to a vehicle cooling seat device (or a ventilation seat device).

A ventilation seat or cooling seat for a vehicle is equipped with an intake port for sucking air in the seat and an air outlet for exhausting air, and while the driver is sitting on the seat and driving, the air blower is driven by a motor to blow air into the thigh or buttocks of the driver. It is a device that removes sweat and moisture by blowing. The ventilation seat device or cooling seat device for a vehicle is similar to the rotation noise of the blower fan of the vehicle air purifier, and when the vehicle is traveling at a predetermined speed, the driver or occupant rotates the ventilation fan of the cooling seat device (ventilation seat device). Although the noise is not well recognized, the rotational noise of the ventilation fan of the cooling seat device (ventilated seat device) when the vehicle is in a stationary state is annoying to the ears of the driver or occupants. Therefore, when the present invention is applied to a vehicle cooling seat device (ventilated seat device), it is possible to significantly reduce the driving noise of the vehicle cooling seat device (ventilated seat device) felt by the driver or passenger.

Although the present invention has been described with reference to the embodiment shown in the drawings, which is only exemplary, those of ordinary skill in the art to which the present invention pertains will understand that various modifications and equivalent other embodiments are possible therefrom. will be. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

10: housing 20: filter unit
30: blow fan 40: drive motor
50: control unit 60: operation unit and display unit
70: fine dust sensor 100: air purification device

Claims (6)

In the vehicle air purifier installed in the interior of the vehicle,
a housing 10 having an air intake port for sucking air in the interior of the vehicle and an air discharge port for discharging air, the housing 10 being mounted in the interior of the vehicle;
a filter unit 20 installed in a flow path between the air inlet and the air outlet in the housing to purify the air;
a blower fan (30) installed in the flow path between the air inlet and the air outlet in the housing, sucking air from the air inlet and discharging the air to the air outlet;
a driving motor 40 installed in the housing and driving the blowing fan; and
and a control unit 50 for recognizing the vehicle's stopped state and controlling the operation of the driving motor,
When the vehicle stop recognition signal is generated and sent to the control unit 50, the control unit 50 converts the driving of the driving motor 40 to the lowest speed to switch to the minimum noise mode.
Vehicle air purifier.
According to claim 1,
The vehicle stop recognition signal is generated when the engine is turned off as the vehicle in motion is stopped by the operation of the ISG.
Vehicle air purifier.
According to claim 1,
The vehicle stop recognition signal is generated when the driving vehicle is stopped and the speed of the speedometer indicates “0”.
Vehicle air purifier.
According to claim 1,
The filter unit 20 has a replaceable filter unit.
Vehicle air purifier.
According to claim 1,
The vehicle air purifier 100 is installed in the interior of the vehicle in a buried type, built-in type, or mounted type.
Vehicle air purifier.
a housing 10 having an air inlet for sucking air in the vehicle's interior and an air outlet for discharging air; a filter unit 20 installed in a flow path between the air inlet and the air outlet in the housing to purify the air; a blower fan (30) installed in the flow path between the air inlet and the air outlet in the housing, sucking air from the air inlet and discharging the air to the air outlet; a driving motor 40 installed in the housing and driving the blowing fan; and a control unit 50 for controlling the operation of the driving motor.
generating a vehicle stop recognition signal when 1SG of the vehicle is in operation or when the speed of the vehicle's speedometer indicates "0"(S10);
When the signal generated in the vehicle stop recognition signal generating step is received by the control unit 50, converting the driving of the driving motor 40 to the lowest speed to convert to the minimum noise mode (S20); and
When the control unit 50 receives the driving recognition signal of the vehicle, restarting the driving of the driving motor 40 and switching to normal driving (S30)
A control method for an air purifier for a vehicle.

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