Blower device of an air conditioning system for a vehicle with electric dust collector and control method thereof

Abstract

A blower device (1000) of an air conditioning system for a vehicle, comprising: a blower box (100) including a duct part (110) with an inside air inlet (111) and an outside air inlet (112), an air-blowing part (120) connected to an inlet of an air-conditioning box, and a connecting part (130) for connecting the duct part (110) to the air-blowing part (120), wherein the connecting part (130) has an insertion part (131) from which a specific area is hollowed out; an inside and outside air conversion door (200) arranged in the duct part (110) of the blower box (100) for opening and closing the inside air inlet (111) and the outside air inlet (112); a blower (300) arranged in the air-blowing part (120) of the blower box (100) is arranged to forcibly blow air;an electric dust collector (400) located at the connecting part (130) of the blower box (100);and a cover (500) for opening and closing the insertion part (131) of the blower box (100), wherein the blower device (1000) of the air conditioning system for the vehicle has an electric charger unit (420) attached to the blower box (100) separately from the electric dust collector (400), and the electric dust collector (400) has a filter unit (410) for collecting dust charged with electricity by the electric charger unit (420) and a high-voltage supply unit (430) for applying high voltage to the electric charger unit (420) and the filter unit (410).

Description

[Technical Field]The present invention relates to a blower device of an air conditioning system for a vehicle having an electrostatic precipitator and a control method thereof, and more particularly to a blower device of an air conditioning system for a vehicle including an electric dust collector inserted into a fitting part of the blower box and capable of being opened and closed by a cover so as to enhance the comfort of the vehicle through an electric dust collecting filter without changing the existing blower box and supplying the electric current to a filter unit of the dust collector after checking the approach of a driver so as to prevent dust collected in the filter unit from being supplied to the interior of the vehicle when being removed from the filter unit, and a control method thereof.[Background art]An air conditioner for a vehicle is a device that draws in inside air and outside air of a vehicle and cools or heats the drawn air by a heat exchanger and blows heat-exchanged air into the interior of the vehicle, so as to keep the interior of the vehicle at an appropriate temperature in the summer or winter season or secure the front and rear view fields of a driver by removing frost from the windows of the vehicle in the rainy season or in the winter.Meanwhile, the interior of the vehicle is easily soiled because it is small and sealed, and is more soiled due to particulate matter and various pollutants in urban areas. Particularly, because of a continuous increase in a spread rate of vehicles and an increase in time in which people are in vehicles, studies have been made to obtain comfort in the interior of the vehicle.As an example showing the cleaning of the interior of a vehicle, KR 10 2004 097 758 A discloses an air cleaner for a vehicle that sterilizes microorganisms collected during an air cleaning operation so as to flow cleaner air into the interior of the vehicle. As shown in FIG. 1, the air cleaner for a vehicle includes: a box 50 having a suction opening 51 and an outflow opening 52; a first filter 60 attached behind the suction opening 51 to collect foreign materials or dust; an electrostatic dust collector 70 for adsorbing fine dust by electric discharge; a second filter 90 attached in front of the outflow opening 52 of the box 50 and coated with a photocatalyst to decompose organic material and sterilize harmful microorganisms; and an ultraviolet lamp 80 attached between the electrostatic dust collector 70 and the second filter 90 to activate the photocatalyst of the second filter 90.Such an air cleaner for a vehicle sterilizes harmful microorganisms by using the photocatalyst activated by the ultraviolet rays of the ultraviolet lamp and removes causes of malodors due to decomposition of organics. The air introduced through the suction port 51 of the box 50 is filtered while passing through the first filter 60. The first filter 60 mainly filters coarse dust. The first filtered air flows into the electrostatic dust collector 70, and when electricity is supplied by the power supply unit 73, particulate matter charged by an electric charging unit 71 is adsorbed to a dust collecting electrode 72. Therefore, the particulate matter passing through the first filter is removed by the electrostatic dust collector 70. While the air passing through the electrostatic dust collector 70 flows to the second filter 90, microorganisms included in the air, such as germs or mold, are sterilized by ultraviolet rays emitted from the ultraviolet lamp 80. Therefore, from the air discharged through the discharge port 52 of the box 50, purified air from which dust and harmful microorganisms have been removed is obtained.That is, the air cleaner for the vehicle uses filters of various types in which particulate matter is collected, or the air cleaner uses the filters and an ultraviolet lamp for sterilization.However, the filters for collecting particulate matter are divided into a filter for filtering particles above a certain diameter using a dust filter, a filter for collecting germs, mold and malodor-generating factors using an activated carbon filter, and a filter for collecting dust after discharging electricity, so that dust has specific electric charge. The first and second filters must be replaced with new filters because of the removal of dust by dust collection. However, the third electrostatic dust collector type filter does not need to be replaced with a new one, and can effectively remove even small particles.FIG. 2 illustrates dust collection of the electrostatic dust collector 70, which is the electrostatic dust collector type filter. In FIG. 2, the electrostatic dust collector 70 includes: an electric charging unit 71 having a discharge plate 71a and a discharge pin 71b for charging dust (D) with electricity by corona discharge; and a dust collecting electrode 72 for collecting the dust (D') charged by the electric charging unit 71.However, the electrostatic dust collector illustrated in FIG. 2 generates electromagnetic noise and ozone at a tip end portion of the electric discharge pin due to electric charge by corona discharge. Since electromagnetic noise could interfere with the operation of various devices in the vehicle and ozone is harmful to human bodies, the electrostatic dust collector needs additional means for removing electromagnetic noise and ozone.JP 2012 236 437 A discloses an air conditioner for a vehicle, wherein a lower guide part supports a filter element in a mounting position and an upper guide part adjusts the height of the filter element and allows it to be inclined upward and rearward in the mounting direction during mounting and dismantling.KR 10 2004 0 080 321 A discloses a vehicle air filter designed as an integral unit, having two filter elements, a unit for generating an electrical potential, an activated carbon filter element and a power supply unit.[Technical Problem]Accordingly, the present invention has been made in an effort to solve the above-mentioned problems occurring in the related art, and it is an object of the present invention to provide a blower device of an air conditioning system for a vehicle that includes an electric dust collector that is inserted into an insertion part of a blower box and is capable of being opened and closed by a cover so as to effectively enhance comfort of the vehicle by an electric dust collecting filter without changing the existing blower box.It is another object of the present invention to provide a blower device of an air conditioning system for a vehicle in which an electric dust collector capable of preventing generation of ozone harmful to human bodies and collecting particulate matter can be easily detachably attached to a blower box and that allows a user to easily inspect and easily replace the filter with a new one.It is another object of the present invention to provide a method of controlling an electric dust collector for a vehicle that supplies electric power to a filter unit of the electric dust collector after checking the approach of a driver, so as to prevent dust collected in the filter unit from being supplied to the inside of the vehicle when being removed from the filter unit, thereby further enhancing comfort of a passenger.[Technical Solution]A blower device according to the invention is defined in claim 1, a control method according to the invention of an electric dust collector of a blower device is defined in claim 11, preferred embodiments being specified in more detail in the respective dependent claims.To achieve the above objects, the present invention provides a blower device of an air conditioning system for a vehicle, including: a blower box having a duct part having an inside air inlet and an outside air inlet, an air blowing part connected to an inlet of an air conditioning box, and a connection part for connecting the duct part to the air blowing part, the connection part having an insertion part from which a certain area is hollowed; an inside and outside air conversion door disposed in the duct part of the blower box to open and close the inside air inlet and the outside air inlet; a blower disposed in the air blowing part of the blower box to forcibly blow air; an electric dust collector disposed at the connection part of the blower box through the insertion part; and a cover for opening and closing the insertion part of the fan box. The electric dust collector is inserted into the insertion part of the blower box and is capable of being opened and closed by the cover, thereby enhancing the comfort of the vehicle by the electric dust collecting filter without changing the existing blower box.In addition, the blower device of the air conditioning system for the vehicle includes an electric charger unit separately attached to the blower box, and the electric dust collector includes a filter unit for collecting dust charged by the electric charger unit and a high voltage supply unit for applying high voltage to the electric charger unit and the filter unit.Preferably, the high voltage supply unit has a connector for connecting electric power to the vehicle in the normal operation state.Preferably, the cover has a hollowed opening from which a certain portion is hollowed so that the high voltage supply unit of the electric dust collector protrudes outward from the blower box. That is, in a state in which the insert member is closed because the high voltage supply unit is exposed to the outside through the hollowed opening, the electric dust collector can be fixed without changing the existing blower box, and it is easy to connect the high voltage supply unit to electric power.Preferably, the blower device of the air conditioning system for the vehicle includes a fixing part formed on the blower box or the cover so that the blower box and the cover are fixed to each other.Preferably, the blower device of the air conditioning system for a vehicle includes: a coupling hole formed on one side of the blower box; a protrusion part formed on one side of the cover to correspond to the coupling hole; and a fixing part formed on the other side of the blower box or the cover, so that the blower box and the cover are fixed to each other by the fixing part when the protrusion part of the cover rotates on an axis of a portion where the protrusion part is inserted into the coupling hole.Preferably, the filter unit in conjunction with the electric dust collector includes: a filter case; and a filter member formed in such a manner that a plurality of dust collecting plates each having conductive surfaces are laminated in a plurality of layers and formed so that air can move in the filter case. The electric supercharger unit includes: an electric supercharger housing; a first electrode part fixed in the electric supercharger housing; and a second electrode part fixed in the electric supercharger housing to be spaced apart from the first electrode part inside the electric supercharger housing.Preferably, the first electrode part has a plurality of through holes in a flat plate of a conductive material, and the second electrode part includes: a frame; and an electric charging pin protruding from the frame to the center of the through holes of the first electrode part.Preferably, the high voltage supply unit may apply high voltage to another high voltage using device mounted in the vehicle. That is, the high voltage supply unit can simplify the configuration of vehicle parts by applying high voltage to units requiring high voltage, for example, an anion generator, as well as can be used for the electric dust collector.In another aspect of the present invention, there is provided a control method of an electric dust collector of a blower device of an air conditioning system for a vehicle, including the steps of: determining approach of a driver; and supplying electric power to a filter unit when it is determined in the approach determination step that the driver approaches the vehicle, so that the dust collected at the filter unit is prevented from being supplied to the inside of the vehicle because the dust collected at the filter unit is detached from the filter unit.Further, after the step of supplying electric power to a filter unit, the control method of the electric dust collector for the vehicle further includes: checking a running state and a stopped state of the vehicle, and cutting off the power supply to the filter unit when it is checked in the step of checking a running state that the vehicle has been stopped after the running.Preferably, the approach determining step determines that the driver is approaching the vehicle when a key sensor disposed in the vehicle is sensed.Preferably, the approaching determination step determines that the driver is approaching the vehicle when a vehicle door is opened.[Advantageous Effects]As described above, the blower device of the air conditioning system for the vehicle according to the present invention includes the electric dust collector that is inserted into the insertion part of the blower box and is capable of being opened and closed by the cover, so as to effectively enhance the comfort of the vehicle by an electric dust collecting filter without any change of the existing blower box.In particular, the blower device of an air conditioning system for a vehicle according to the present invention has several advantages in that the electric dust collector is capable of preventing generation of ozone harmful to human bodies and collecting particulate matter, can be easily detachably attached to a blower box, and allows a user to easily inspect the filter and easily replace it with a new one.Moreover, the blower device includes the method of controlling the electric dust collector for a vehicle that supplies electric power to a filter unit of the electric dust collector after checking the approach of a driver, so as to prevent dust collected in the filter unit from being supplied to the inside of the vehicle when being removed from the filter unit, thereby enhancing the comfort of a passenger.[Description of Drawings]FIG. 1 is a configuration diagram of an electric dust collector according to the related art. FIG. 2 is a schematic diagram for showing dust collection of an electrostatic dust collector. FIG. 3 is a perspective view, FIG. 4 is an exploded perspective view, and FIG. 5 is a sectional view of a blower device of an air conditioning system for a vehicle according to an embodiment not according to the present invention. FIG. 6 is a perspective view and FIG. 7 is a partially cut-away perspective view of an electric dust collector of the blower device of the air conditioning system for the vehicle according to the non-inventive embodiment. FIG. 8 is a perspective view showing a filter unit of the blower device of the air conditioning system. FIG. 9 is a perspective view showing a first electrode unit of the blower device of the air conditioning system. FIG. 10 is a perspective view showing a second electrode unit of the blower device of the air conditioning system. FIG. 11 is a perspective view showing another electric dust collector of the blower device of the air conditioning system. FIG. 12 is an exploded view and FIG. 13 is a sectional view of a blower device of an air conditioning system for a vehicle according to a preferred embodiment of the present invention. FIGS. 14 and 15 are views of a blower device of an air conditioning system for a vehicle according to another preferred embodiment of the present invention. FIGS. 16 and 17 are flowcharts of a control method of an electric dust collector for a vehicle according to a preferred embodiment of the present invention. FIG. 18 is a flowchart of a control method of an electric dust collector for a vehicle according to another preferred embodiment of the present invention. FIG. 19 is a flowchart of a control method of an electric dust collector for a vehicle according to another preferred embodiment of the present invention.< Of Reference Numerals in Drawings>1000 A blower device of an air conditioning system for a vehicle 100 Blower box 101 Coupling opening 110 Duct part 111 Inside air inlet 112 Outside air inlet 120 Air blowing part 130 Connection part 131 Insertion part 200 Inside and outside air conversion door 300 Blower 400 Electric dust collector 410 Filter unit 411 Filter housing 412 Filter member 420 Electric charger unit 421 Electric charger housing 422 First electrode part 422 aThrough opening 423 Second electrode part 423 aFrame 423 bElectric charging pin 430 High voltage supply unit 431 Connector 500 Cover 501 Hollowed opening 510 Fixing part 520 Protrusion part S 10~S 40 Steps in the electric dust collector control method for a vehicle[Preferred Embodiments]Hereinafter, reference will now be made in detail to a blower device 1000 of an air conditioning system for a vehicle having an electric dust collector 400 and a control method of the electric dust collector according to the preferred embodiments of the present invention with reference to the accompanying drawings.FIG. 3 is a perspective view, FIG. 4 is an exploded view, and FIG. 5 is a sectional view of a blower device of an air conditioning system for a vehicle according to an embodiment not according to the present invention.The blower device 1000 of the air conditioning system for the vehicle according to the non-inventive embodiment includes a blower box 100, an inside and outside air conversion door 200, a blower 300, an electric dust collector 400, and a cover 500.The blower box 100 includes the inside and outside air conversion door 200, the blower 300, and the electric dust collector 400 therein, and includes a duct part 110, an air blowing part 120, and a connection part 130.The duct part 110 has an inside air inlet 111 and an outside air inlet 112, and the inside air and outside air conversion door 200 is disposed in the duct part 110. The inside air inlet 111 is hollowed so that inside air of the vehicle flows in, and the outside air inlet 112 is hollowed so that outside air flows in.The blower 300 is disposed in the air blowing part 120 and is connected to an inlet of an air conditioning case (not shown).The connection part 130 is to connect the air blowing part 120 to the lead part 110, and the electric dust collector 400 is disposed in the connection part 130. In this example, the connection part 130 includes an insertion part 131 from which a certain portion is hollowed so that the electric dust collector 400 is inserted and detachably fastened.The inside and outside air conversion door 200 is disposed in the duct part 110 of the blower box 100, and rotates while curving around a drive shaft so as to selectively open and close the inside air inlet 111 and the outside air inlet 112. FIG. 5 shows a state in which the inside and outside air conversion door 200 allows the outside air to flow inward, and the inflow of the inside air is marked with dotted lines.The blower 300 is disposed in the air blowing part 120 of the blower box 100 to forcibly blow the air. When the air flows in through the inside air inlet 111 or the outside air inlet 112, the blower 300 blows the air toward an inlet of the air conditioner case. In this example, air blown to the inlet of the air conditioner case exchanges heat through heat exchangers disposed inside the air conditioner case, and is blown into the interior of the vehicle to control the interior temperature of the vehicle.The electric dust collector 400 is located at the connection part 130 of the blower box 100 through the insertion part 131, and a detailed configuration of the electric dust collector 400 will be described as follows.The cover 500 is to open and close the insertion part 131 of the fan box 100, and has a fixing part 510 to be fixed to the fan box 100. That is, the blower device 1000 of the air conditioning system for the vehicle according to the non-inventive embodiment has several advantages in that the electric dust collector 400 can be easily attached and detached and the filter can be easily replaced with a new one because the insertion part 131 of the blower box 100 can be opened and closed by the cover. In addition, the blower device 1000 of the air conditioning system for the vehicle according to the non-inventive embodiment can effectively enhance the comfort of the vehicle through an electric dust collecting filter without changing the existing blower box 100.FIG. 6 is a perspective view and FIG. 7 is a partial perspective sectional view of an electric dust collector of the blower device of the air conditioning system for the vehicle according to the non-inventive embodiment, FIG. 8 is a perspective view showing a filter unit of the blower device of the air conditioning system, FIG. 9 is a perspective view showing a first electrode unit of the blower device of the air conditioning system, FIG. 10 is a perspective view showing a second electrode unit of the blower device of the air conditioning system, and FIG. 11 is a perspective view showing another electric dust collector of the blower device of the air conditioning system. The electric dust collector 400 includes an electric charger unit 420, a filter unit 410, and a high voltage supply unit 430.The electric charger unit 420 charges dust with electricity, and includes an electric charger case 421, a first electrode part 422 and a second electrode part 423.The electric supercharger housing 421 is an outer member for constituting the electric supercharger unit 420. The first electrode part 422 has a plurality of through holes 422 aformed in a flat plate of a conductive material. The second electrode part 423 includes a frame 423 aand a plurality of electric charging pins 423 bprotruding from the frame 423 ato the center of the through holes 422 aof the first electrode part 422. The first electrode part 422 and the second electrode part 423 charge dust with electricity when a positive electrode and a negative electrode are applied. More specifically, when the first electrode part 422 receives high positive voltage and the second electrode part 423 receives high negative voltage, the electric charging pin 423 bis located at the center of the through hole 422 aof the first electrode part 422 so that an electric field from the electric charging pin 423 bto the inner circumferential surface of the through hole 422 abreeks up actively fine dust that passes through the first electrode part 422 and the second electrode part 423 with electricity. The filter unit 410 includes a filter housing 411 and a filter member 412. The filter housing 411 supports the filter member 412. The filter member 412 is formed in such a manner that a plurality of dust collecting plates each having conductive surfaces (formed by applying, coating or attaching a conductive material) are laminated in a plurality of layers and formed so that air can move in the filter case 411. In this example, the filter member 412 is formed to transfer applied electric current from the high voltage supply unit 430 to the conductive surface.That is, dust charged with electricity by the electric charger unit is collected at the filter member 412.The high voltage supply unit 430 supplies high voltage to the electric charger unit 420 and the filter unit 410. In this example, a connector 431 for connecting electricity to the vehicle in the normal operation state is formed. In this example, the blower device of the air conditioner case for the vehicle according to the present invention has a hollowed opening 501 formed in such a manner that a certain portion of the cover 500 is hollowed so that the high voltage supply unit 430 protrudes out of the blower case 100. Accordingly, the blower device of the air conditioner case for the vehicle according to the present invention can easily connect a power supply to the high voltage supply unit 430 without changing the existing blower case 100.The high voltage supply unit 430 may supply high voltage to the electric charger unit 420 and the filter unit 410 and apply high voltage to other units using high voltage. In other words, the high voltage supply unit can simplify the configuration of vehicle parts by applying high voltage to units requiring high voltage, for example, an anion generator, as well as can be used for the electric dust collector 400.In FIG. 11, the electric dust collector 400 has the above-mentioned structure, and includes the electric supercharger filter housing 411 and the electric supercharger housing 421 which are integrally formed.Meanwhile, FIG. 12 is an exploded perspective view and FIG. 13 is a cross-sectional view of a blower device of an air conditioning system for a vehicle according to a preferred embodiment of the present invention. In FIGS. 12 and 13 illustrating the air conditioning system for the vehicle according to a preferred embodiment of the present invention, an electric charger unit 420 is mounted in a blower box 100, and an electric dust collector includes: a filter unit 410 for collecting dust charged by the electric charger unit 420; and a high voltage supply unit 430 for applying high voltage to the electric charger unit 420 and the filter unit 410. In this example, the electric charger unit 420 includes a first electrode part 422 and a second electrode part 423. The electric supercharger housing 421 may be the blower box 100 or may be fixed on the blower box 100. The first electrode part 422 and the second electrode part 423 have the above-mentioned features.Further, FIGS. 14 and 15 are views of a blower device of an air conditioning system for a vehicle according to another preferred embodiment of the present invention. FIGS. 14 and 15 illustrate an example in which four fastening parts 510 are formed and fastened on the cover 500. In FIGS. 14 and 15, a coupling hole 101 is formed on one side of the fan box 100, a protrusion part 520 is formed on one side of the cover 500 in communication with the coupling hole 101, and the fixing parts 510 are formed on the other side of the fan box 100 or the cover 500, so that the fan box 100 and the cover 500 are fixed to each other by the fixing part 510 when the protrusion part 520 of the cover rotates on an axis of a portion where the protrusion part 520 is inserted into the coupling hole 101. Specifically, FIG. 14 illustrates an example in which the coupling hole 101 is formed on the left side of the blower box 100, and the protrusion part 520 corresponding to the coupling hole 101 is formed on the left side of the cover 500. In addition, FIG. 15 illustrates an example in which the coupling hole 101 is formed at the upper portion of the blower box 100, the protrusion part 520 corresponding to the coupling hole 101 is formed at the upper portion of the cover 500, and the fixing part 510 is formed at the other side of the cover 500. The fastening part 510 may take a hook-like one or one of various types of fastening, and may take one of various fastening means formed at least on the blower box 100 or the cover 500.FIGS. 16 and 17 are flowcharts of a control method of an electric dust collector for a vehicle according to a preferred embodiment of the present invention, FIG. 18 is a flowchart of a control method of an electric dust collector for a vehicle according to another preferred embodiment of the present invention, and FIG. 19 is a flowchart of a control method of an electric dust collector for a vehicle according to another preferred embodiment of the present invention.The control method of the electric dust collector for the vehicle according to the present invention relates to a method of controlling the electric dust collector 400 included in the above-mentioned blower device 1000 of the air conditioning system for the vehicle, and includes a step (S 10) of determining the approach of a driver and a step (S 20) of supplying electric power to the filter unit.The approaching determination step (S 10) is the step of determining whether or not the driver approaches the vehicle in a state where the vehicle is stopped or stopped. That is, the approaching determination step (S 10) is the step of sensing that the driver approaches the vehicle to drive the vehicle. The approaching determination step (S 10) is executed before the driver starts the engine after entering the vehicle, namely, before the air conditioning system starts the operation.As shown in FIG. 18, the approaching determination step (S 10) includes the steps of: (S 11) determining that the driver approaches the vehicle when a key sensor provided in the vehicle has been sensed; and (S 12) determining that the driver approaches the vehicle when a vehicle door has been opened as shown in FIG. 19.The step (S 20) of supplying electric power to a filter unit is a step of supplying electric power to a filter unit (410) when it is determined in the approaching determination step (S 10) that the driver approaches the vehicle. The step (S 20) of supplying electric power to a filter unit continues while the vehicle is running.In other words, the control method of the electric dust collector for the vehicle according to the present invention determines the approach of the driver before the vehicle is started, namely before the air conditioning system (the air blowing part 120) is operated, and supplies electric current to the filter unit 410 of the electric dust collector 400, so that the dust collected at the filter unit 410 may be in an attached state. Because the air blowing part 120 is operated before electric power is supplied to the filter unit 410, the dust collected to the filter unit 410 is detached from the filter unit so as not to be supplied to the inside of the vehicle, so that the control method of the electric dust collector can increase the comfort of a passenger.Further, the control method of the electric dust collector for the vehicle according to the present invention includes the step of checking a running state (S 30), and the step of cutting off the power supply to the filter unit (S 40).The step of checking a running state (S 30) is the step of checking a running state and a stopped state of the vehicle after the step of supplying electric power to a filter unit (S 20). The running state and the stopped state of the vehicle may be checked by a startup state or RPM information of the vehicle, and the step of checking a running state (S 30) may be executed by an electronic control unit (ECU).The step of cutting off the power supply to the filter unit (S 40) is the step of cutting off electric power supplied to the filter unit when it is checked in the running state checking step (S 30) that the vehicle has stopped after traveling.After the step of cutting off the power supply to the filter unit (S 40) when the driver leaves the vehicle (it may be checked by a state of the locked vehicle door), the approach determination step (S 10) is performed again.In other words, the control method of the electric dust collector for the vehicle according to the present invention determines the approach of the driver before the air blowing part 120 is operated after the driver gets in, supplies electric power to the filter unit 410 of the electric dust collector 400, and then cuts off the power supply to the filter unit 410 when the vehicle is stopped after running, so as to prevent the dust caught in the filter unit 410 of the electric dust collector 400 from being supplied to the inside of the vehicle, thereby enhancing the comfort of the vehicle.Although the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it should be noted by those skilled in the art that the present invention is not limited to the embodiments and various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined in the following claims.

Claims

A blower device (1000) of an air conditioning system for a vehicle, comprising: a blower box (100) including a duct part (110) having an inside air inlet (111) and an outside air inlet (112), an air blowing part (120) connected to an inlet of an air conditioning box, and a connection part (130) for connecting the duct part (110) to the air blowing part (120), the connection part (130) having an insertion part (131) from which a certain area is hollowed; an inside and outside air conversion door (200) disposed in the duct part (110) of the blower box (100) to open and close the inside air inlet (111) and the outside air inlet (112); a blower (300) disposed in the air blowing part (120) of the blower box (100) to forcibly blow air; an electric dust collector (400) located at the connection part (130) of the blower box (100); and a cover (500) for opening and closing the insertion part (131) of the blower box (100), wherein the blower device (1000) of the air conditioning system for the vehicle includes an electric charger unit (420) mounted on the blower box (100) separately from the electric dust collector (400), and the electric dust collector (400) includes a filter unit (410) for collecting dust charged with electricity by the electric charger unit (420), and a high voltage supply unit (430) for applying high voltage to the electric charger unit (420) and the filter unit (410).The blower device (1000) according to claim 1, wherein the cover (500) has a hollowed opening (501) from which a certain area is hollowed so that the high voltage supply unit (430) of the electric dust collector (400) protrudes outward from the blower box (100).The blower device (1000) according to claim 2, wherein the blower device (1000) of the air conditioning system for the vehicle includes a fixing part (510) formed on the blower box (100) or the cover (500) such that the blower box (100) and the cover (500) are fixed to each other.The blower device (1000) according to claim 2, wherein the blower device (1000) of an air conditioning system for the vehicle further comprises: a coupling hole (101) formed on one side of the blower box (100); a protrusion part (520) formed on one side of the cover (500) to correspond to the coupling hole (101); and a fixing part (510) formed on the other side of the blower box (100) or the cover (500), such that the blower box (100) and the cover (500) are fixed to each other by the fixing part (510) when the protrusion part (520) of the cover (500) rotates on an axis of a portion where the protrusion part (520) is inserted into the coupling hole (101).The blower device (1000) according to claim 1, wherein the filter unit (410) includes: a filter case (411); and a filter member (412) formed in such a manner that a plurality of dust collecting plates each having conductive surfaces are laminated in layers and formed so that air can move in the filter case (411).The blower device (1000) according to claim 1, wherein the electric supercharger unit (420) includes: an electric supercharger housing (421); a first electrode part (422) mounted in the electric supercharger housing (421); and a second electrode part (423) mounted in the electric supercharger housing (421) to be spaced apart from the first electrode part (422) inside the electric supercharger housing (421).The blower device (1000) according to claim 6, wherein the first electrode part (422) has a plurality of through holes (422a) formed in a flat plate of a conductive material.The blower device (1000) according to claim 7, wherein the second electrode part (423) includes: a frame (423a); and a plurality of electric charging pins (423b) protruding from the frame (423a) toward the center of the through holes (422a) of the first electrode part (422).The blower device (1000) according to claim 1, wherein the high voltage supply unit (430) has a connector (431) for connecting electric power to a vehicle in the normal operation state.The blower device (1000) according to claim 1, wherein the high voltage supply unit (430) applies high voltage to another high voltage using device mounted in the vehicle.A control method of an electric dust collector (400) of a blower device (1000) of an air conditioning system for a vehicle, comprising the steps of: (S10), determining approach of a driver; (S20), when it is determined in the approaching determination step (S10) that the driver approaches the vehicle, supplying electric power to a filter unit (410) after the electric power supply step (S20), further comprising the steps of: (S30) checking a running state and a stopped state of the vehicle, and (S40) cutting off the power supply to the filter unit (410) when it is checked in the running state checking step (S30) that the vehicle has stopped after the driving.The control method according to claim 11, wherein the approaching determination step (S10) determines that the driver approaches the vehicle when a key sensor provided in the vehicle has been sensed.The control method according to claim 12, wherein the approaching determination step (S10) determines that the driver approaches the vehicle when a vehicle door is opened.

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