KR20050111685A - Intake unit and method for controlling the intake unit - Google Patents

Abstract

According to an aspect of the present invention, there is provided an intake unit device including a housing and an intake door rotated within the housing to select an intake mode, the apparatus comprising: sensing means for sensing an outside air state and a signal from the sensing means to determine an outside air state; A control unit for transmitting a control signal, a filter unit consisting of a plurality of sub-filters each having a different function, and a filter unit selecting means for selecting a sub filter through which an intake air flows through the operation of the intake door. It is an object of the present invention to provide an intake unit device.

Description

Intake unit and method for controlling the same {Intake unit and method for controlling the intake unit}

The present invention relates to an intake unit device for injecting outside air or circulating indoor air to be discharged to a vehicle interior, and more particularly, through intake mode and filter selection mode, which are appropriately selected, to prevent contamination of indoor air by occupants. It relates to an intake unit device that can prevent and filter odors and dust at the same time according to the state of the outside air introduced.

Typically, in the vehicle air conditioner, outside air or indoor air of the vehicle is introduced into the interior of the vehicle via an intake unit having a fan blower. That is, a fan blower driven by a motor is disposed at the lower end of the intake unit to form a negative pressure inside the lower end of the intake unit housing, thereby introducing air, and introducing the introduced air into another air conditioning device such as a heater core and / or an Eva core. The evaporator is flowed through and heated and / or cooled to complete the air conditioning process to maintain the air at the proper temperature desired by the operator.

As an example of the prior art, Japanese Laid-Open Patent Publication No. 1993-293165 discloses a vehicle deodorizer for removing dust and odors. Here, the incoming air passes through the dust filter and then flows out through an adsorbent having a photocatalyst.

As another example, Korean Patent Laid-Open Publication No. 1997-0032972 discloses an indoor air purifier for an automobile having a dust filter, an odor removing filter, etc., through which incoming air sequentially flows.

On the other hand, as shown in Fig. 1, Japanese Laid-Open Patent Publication No. Hei 7-275626 uses the power generated from the drive source 5 to filter 4 from a rotating roll on one side via a power transmission means 1 such as a reduction gear. An air conditioner filter is disclosed which eliminates frequent cleaning and maintenance by moving to the other side 2.

According to the prior art as described above, the air flowing into the intake unit takes the structure of permeating only one of the filters, that is, the filter for filtering odor and dust, or the filter for filtering odor and dust. However, it must have passed through all filters sequentially arranged in the flow direction of the incoming air irrespective of the state of the air, that is, the smell, the presence of dust and the strength and weakness of the incoming air. As a result, even if only one of the smell and dust is filtered or both the smell and the dust is filtered, regardless of the state of the incoming air unconditionally undergoes the filtration process unnecessarily filtered air is also subjected to unnecessary filtration process In the air intake unit, and broadly in the air conditioning system, the response of the operator to the reaction is significantly reduced.

In addition, according to the prior art, when the sensing means provided to detect the smell or dust by unilaterally maintaining the intake mode in the circulation mode irrespective of the strength of the smell or dust, CO ₂ discharged due to the passenger breathing In addition, there was a problem inevitably accompanied by indoor air pollution and steaming of the window.

An object of the present invention is to provide an intake unit device capable of providing a comfortable indoor environment of a vehicle by providing a filter unit having various sub-filters and appropriately selecting the sub-filters according to the state of inflowing air.

Another object of the present invention is to provide a filter unit that can be appropriately filtered according to the air condition, thereby maintaining the intake mode in the outside state, except in certain cases where odor deodorization is not possible, such as exhaust gas. It is to provide an intake unit device that can prevent contamination and prevent fog of the windshield.

A further object of the present invention is to provide a method for controlling the intake unit device according to the present invention.

In order to achieve the above object, according to an aspect of the present invention, in the air intake unit device having a housing, an intake door for selecting an intake mode that is rotated in the housing to switch the internal and external air, detecting an air pollution state And a controller configured to receive a signal from the sensing means, determine a state of external air pollution, and send a control signal, a filter unit including a plurality of sub-filters each having a different function, and an operation of the intake door. Provided is an intake unit device comprising: filter portion selecting means for selecting a sub-filter through which the intake air permeates.

According to another aspect of the present invention, the filter portion selecting means includes a motor for rotating the filter portion and a power transmission element for transmitting power generated from the motor to the filter portion or the filter selection plate. An intake unit device is provided.

According to another aspect of the invention, the power transmission element is a gear wheel, the periphery of the filter portion is formed a gear portion, the gear wheel is connected to one end of the motor and is engaged with the gear portion of the filter portion An intake unit device is provided.

According to another aspect of the invention, the power transmission element is a belt, one side of the belt is in contact with at least one side of the periphery of the filter portion to transfer the power generated from the motor to the filter portion Provide unit devices.

According to yet another aspect of the present invention, the filter portion selecting means comprises: a filter selection plate disposed upstream of the intake air flowing into the filter portion, the filter selection plate having an opening, a motor for rotating the filter selection plate, and the motor from the motor. And a transmission element for transmitting the generated power to the selection plate.

According to another aspect of the invention, the power transmission element is a gear wheel, a gear portion is formed in the periphery of the filter selection plate, the gear wheel is connected to one end of the motor to match the gear portion of the filter selection plate. Provided is an intake unit device characterized in that it is bitten.

According to another aspect of the invention, the power transmission element is a belt, one side of the belt is in contact with at least one side of the periphery of the filter selection plate to transfer the power generated from the motor to the filter unit Provide an intake unit device.

According to yet another aspect of the present invention, a plurality of sub-filters of the filter unit are provided integrally.

According to yet another aspect of the present invention, a plurality of sub-filters of the filter unit are provided separately and provide an intake unit device.

According to another aspect of the present invention, at least one of the plurality of sub-filters of the filter unit is provided with an intake unit device, characterized in that formed by the bypass opening.

According to another aspect of the present invention, the plurality of sub-filters of the filter unit are selected when the signal detected from the sensing means is a strong odor, a combination filter selected when a large dust and an odor, and a fine dust. It provides a filter, and the intake unit device, characterized in that formed by the bypass opening.

According to yet another aspect of the present invention, there is provided a method of controlling an intake unit device having a housing, an intake door rotated within the housing to select an intake mode, comprising: sensing means for sensing an air pollution state; A controller for receiving a signal from the sensing means to determine an air pollution condition and sending a control signal, a filter unit including a plurality of sub-filters each having a different function, and a sub-filter through which intake air flows through operation of the intake door And a filter unit selecting means for selecting a signal, and transmitting the signal by detecting the presence or absence of odor and dust of the outside air, and the detection means, by the controller, based on the transmitted signal. Selecting a selection mode of the filter unit, in accordance with the selected mode And actuating said intake door and said filter portion selecting means.

According to another aspect of the present invention, the intake mode is composed of an external air mode and a circulation mode, and at least one of the filter unit selection mode includes a bypass mode. do.

According to another aspect of the present invention, the intake mode is composed of an outdoor mode and a circulation mode, and the filter unit selection mode filters the filtration mode selected when the sensing means detects a strong smell, large dust and odors. A method of controlling an intake unit device, comprising a mode, a mode for filtering fine dust, and a bypass mode.

Hereinafter, an auxiliary air conditioner for a vehicle according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

2A and 2B show schematic cross-sectional views showing a state in which an intake unit device according to the present invention is provided in a vehicle and an intake unit device. Intake unit device 200 according to an embodiment of the present invention is rotated in the intake unit housing 210, the intake unit housing 210, the intake door 220 for selecting the intake mode, to detect the air pollution state The sensor unit 110 for receiving a signal from the sensing means 110, the controller 110 to determine the external air pollution state and transmits a control signal, each of the filter unit 240 consisting of a plurality of sub-filters for different functions And a filter part selecting means for selecting a sub filter through which the intake air flows through the operation of the intake door 220.

As shown in FIG. 2A, the sensing means 110 is mounted in the first half of the vehicle, for example, may be mounted downstream of the radiator grille. The sensing means 110 may be composed of an odor sensor capable of detecting the presence and absence of odor and a dust sensor capable of detecting the presence or absence of dust and a large or small amount of dust particles, which may be mounted separately or It may be formed integrally. As described above, after each component is provided, a signal of an external pollution state such as smell, presence or absence of dust, and the like detected by the sensing means 110 is transmitted to the controller 100. The controller 100 determines the external pollution state based on the signal from the sensing means 110 and transmits a control signal to select the mode of the intake door and the selection mode of the filter unit, for example, the position of the intake door and the smell and dust. By selecting the sub filter for and operating the intake door and the filter part selecting means, the operating state of the intake unit is controlled.

As shown in FIG. 2B, an intake door 220 that is selectively rotatable around the door shaft 221 is disposed at the upper end of the intake unit housing 210. An intake mode is selected according to the position of the intake door 220. For example, an intake mode may be selected. For example, an intake mode may be selected. MODE) can be provided. In particular, in one embodiment of the present invention as described later, the intake mode is set to the circulating mode because it is difficult for the filter unit to continuously deodorize the strong odor when the sensing means 110 detects a strong odor. . The fan blower 230 is disposed at the lower end of the intake unit housing 210. The fan blower 230 is rotated by the operation of the motor 231 disposed in the lower portion so that air is introduced into the intake unit housing 210. In order to circulate the bet inside the vehicle, the intake door 220 moves to the position indicated by the dotted line in the figure to block the outside air. On the other hand, the intake door 220 is arranged to close the inlet inlet when the outdoor air is to be introduced. That is, by the suction force generated by the operation of the fan blower 230, the outside air is introduced or circulated inside the intake door 220 according to the position selection of the intake door 220. At this time, the air flowing through the filter unit 240 disposed upstream of the lower end of the intake unit housing 210.

A filter selection plate 241 is disposed between the intake door 220 and the filter unit 240, and the filter selection plate 241 includes an opening 242, and the intake door 220 is opened through the opening 242. Air passing through the filter unit 240 is introduced. The filter selection plate 241 may be provided integrally with the intake unit housing 210 or as a separate component.

As shown in FIG. 2C, the filter unit 240 according to an embodiment of the present invention functions in accordance with various external air pollution states according to different functions, for example, depending on the strength and weakness of an odor or large and small dust particles. It consists of a plurality of sub-filters different. The plurality of sub-filters may be integrally formed to form a single filter unit, and as shown in FIG. 4, several individual sub-filters may be mounted in the frame of the filter unit 440, but the filter unit The structure of 240 or 440 is not limited to these embodiments.

The plurality of sub-filters 240a, b, and c may be configured in various forms. According to an embodiment of the present invention, the first sub-filter 240a is selected when the sensing means 110 detects a strong smell. The second sub filter 240b is a combination filter for filtering large dusts and odors, and the third sub filter 240c is composed of a filter for filtering fine dusts. The configuration of the filter is not limited to this. On the other hand, at least one or more of the plurality of sub-filters constituting the filter unit 240 is a bypass opening 240d through which the air introduced through the intake door 220 can directly flow without passing through a separate physical component. It may be provided. That is, when the filter unit is selected by the operation of the filter unit selecting means, at least one of the plurality of modes may be a bypass mode, and the plurality of modes may be selected from the filtering mode selected when the sensing means detects a strong smell. It may be configured as a mode for filtering dust and odor, a mode for filtering fine dust, and a bypass mode.

Filter portion 220 according to an embodiment of the present invention as shown in Figure 2c is provided with a gear portion on the outer periphery, that is, the peripheral portion, the gear portion may be configured in the form of a separate outer frame formed with gear teeth (齒) It may be. The gear part formed at the outer periphery of the filter part 220 is engaged with a power transmission element, for example, a gear wheel 251, connected to one end of the motor 250 as one component of the filter part selecting means. Based on the signal transmitted from the controller 100, the motor 250 operates to properly rotate the filter unit 240 so that the desired sub filter and the opening 242 of the filter selection plate 241 coincide with each other. Therefore, the air introduced through the opening 242 of the filter selection plate 241 flows into the lower end of the intake unit through the selected sub filter.

On the other hand, although not shown in the drawings, the power transmission element as one component of the filter portion selecting means may be a belt, for example, a V-belt and a pulley, which is used to connect the rotational elements spaced apart and transmit power. . Accordingly, the power generated by the motor is transmitted to the filter unit 220 via the V-belt through a pulley formed at one end of the motor, and the periphery of the filter unit is a pulley having a belt groove having a shape corresponding to the contact cross section of the belt. It might work. In this case, the periphery of the filter portion may be a frame formed separately as described above. The air passing through the intake door flows out toward the discharge port via the appropriately selected sub-filter through the lower end of the intake unit housing.

As shown in FIG. 3A and FIG. 3B, according to another embodiment of the present invention, the filter unit 340 may have a plurality of sub-filters 340a, b, c), the plurality of sub-filters may be integrally formed, or may be formed separately and combined with each other. This may take a variety of configurations similar to the plurality of sub-filters 240a, b, and c, and at least one of the plurality of sub-filters constituting the filter unit 340 may be intake without going through a separate physical component. It is not limited to the drawing shown in one embodiment, such as may include a bypass opening 340d through which the air introduced through the door 320 can directly flow.

The filter selection means includes a filter selection plate 341 disposed upstream of the intake air flowing into the filter unit 340, a motor 350 for rotating the filter selection plate 341, and power generated from the motor 350. A power transmission element 351 for delivery to the filter selection plate 341.

In FIG. 3B, gear teeth are formed at the outer periphery of the filter selection plate 341, wherein the outer periphery of the filter selection plate 341 is a gearwheel 351 as a power transmission element attached to one end of the motor 350. ) Is engaged. As the motor 350 operates, the gearwheel 351 rotates, and the filter selection plate 341 engaged with the gearwheel 351 rotates to match the opening 342 with the area of the selected subfilter. Therefore, the air passing through the intake door 320 is discharged through the lower portion of the intake unit housing 310 via the selected sub filter through the opening 342. In addition, in another embodiment of the present invention, the power transmission element may consist of a belt, for example a V-belt and a pulley. In this case, the filter selection plate acts as a pulley and receives power through a pulley and a belt mounted at one end of the motor, so that the opening of the filter selection plate matches the desired sub filter based on the signal received from the controller. Rotate Thus, the air passing through the intake door is discharged through the lower portion of the intake unit housing via the selected sub filter through the opening.

According to the intake unit device of the present invention described above, by setting the intake door and filter sub-filters according to the air pollution state, the intake mode is placed in the circulation mode and remains through the filtration filter when a strong odor is introduced. Strong odors, etc., and in other cases, the intake mode is set to the outside air, and the incoming air passes through an appropriate sub-filter to filter out weak odors or dusts. It is possible to significantly eliminate the deterioration of the vehicle interior environment and the window fog caused by the occupants' breathing, which have been a problem in the conventional intake unit device which always maintains the circulation mode.

In addition, the filter unit of the intake unit device according to the present invention includes one or more bypass openings so that the incoming air passes through the bypass openings when the incoming air is detected in a good condition, that is, outside air with little dust and odor, from the sensing means. By doing so, it is possible to improve the responsiveness by introducing high quality outdoor air into the room without separate filtration.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. . Accordingly, the protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a schematic view showing a filter unit according to the prior art,

2a is a schematic configuration diagram of an intake unit device according to the present invention;

Figure 2b is a schematic cross-sectional view of the intake unit according to an embodiment of the present invention,

Figure 2c is a schematic cross-sectional view of the filter portion and filter selection means of the intake unit according to an embodiment of the present invention,

3A is a schematic cross-sectional view of an intake unit according to another embodiment of the present invention;

Figure 3b is a schematic cross-sectional view of the filter portion and filter selection means of the intake unit according to another embodiment of the present invention,

Figure 4 is a schematic cross-sectional view of the filter unit of the intake unit according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100 controller 110 detection means

200 ... Intake unit 210 ... Intake unit housing

220 ... intake door 230 ... fan blower

240 ... Filter 250 ... Motor

Claims (8)

A housing 210; An intake unit device having an intake door for selecting an intake mode 220 that rotates within the housing and switches internal and external air. Sensing means for detecting a pollution state of the outside air (110); A controller (100) for receiving a signal from the sensing means to determine an external air pollution state and to transmit a control signal; A filter unit 240 including a plurality of sub filters each having a different function; And a filter part selecting means for selecting sub filters (240a, b, c) through which the intake air flows through the operation of the intake door. The method of claim 1, wherein the filter portion selection means, A filter selection plate 241 disposed upstream of the intake air flowing into the filter portion and having an opening; A motor 250 for rotating the filter unit; And a power transmission element for transmitting the power generated from the motor to the filter portion (240) or the filter selection plate (241). The intake unit according to claim 2, wherein the power transmission element is a gear wheel, and a periphery of the filter part is formed, the gear wheel being connected to one end of the motor and engaging with the gear part of the filter part. Device. 3. The intake unit device according to claim 2, wherein the power transmission element is a belt, and one side of the belt is in contact with at least one side of the periphery of the filter part to transmit power generated from the motor to the filter part. The intake unit apparatus according to any one of claims 1 to 4, wherein the plurality of sub-filters of the filter unit are formed separately and mounted. The intake unit device according to any one of claims 1 to 4, wherein at least one of the plurality of sub-filters of the filter portion is formed by a bypass opening portion. The filter of claim 1, wherein the plurality of sub-filters of the filter unit are selected from a filter selected when the signal sensed by the sensing means is a strong odor, a combination filter selected when a large dust and an odor are included. An intake unit device, characterized in that formed by a filter and a bypass opening selected in the case of fine dust. A method of controlling an intake unit device having a housing, an intake door rotated within the housing to select an intake mode, A filter unit comprising a sensing means for sensing a pollution state of the outside air, a controller for receiving a signal from the sensing means, determining a pollution state of the outside air, and transmitting a control signal, a plurality of sub-filters each having a different function; Preparing a filter part selecting means for selecting a sub filter through which the intake air flows according to the operation of the intake door; Transmitting a signal by sensing the presence and strength of the smell and dust of the outside air and the strength and weakness of the sensing means; Selecting, by the controller, the selection mode of the intake mode and the filter unit based on the transmitted signal; Operating the intake door and the filter means selecting means in accordance with the selected mode.