KR100461308B1 - An apparatus for removing the foreign substance from the air filter for air conditioner of a vehicle - Google Patents

Abstract

The present invention relates to a debris removal device for an air filter for an air conditioner of a vehicle, and more particularly, an air filter is installed in the middle of a blowing duct for introducing wind into the air conditioner of a vehicle, and the debris removal mechanism is connected to the air filter. The foreign material suction mechanism is installed at the lower end of the air filter, while a pressure sensor is installed before and after the air filter of the blower duct, and the pressure sensor, the air conditioner operation switch and the blow control switch are connected to the electronic control unit. The electronic control unit processes the electrical signals applied from the pressure sensor, the air conditioner operation switch, and the blower control switch, and is configured to selectively operate the foreign substance removal mechanism and the foreign substance suction mechanism according to the result. The apparatus of the present invention having such a structure detects when foreign matter is caught more than necessary in the air filter of the automobile air conditioner, so that the foreign matter removing mechanism removes the foreign matter of the air filter and removes the foreign substance by suction. The air blown from the air conditioner is always kept clean.

Description

{An apparatus for removing the foreign substance from the air filter for air conditioner of a vehicle}

The present invention relates to a debris removal device for an air filter for an air conditioner of an automobile, and in particular, for removing the debris from the air filter for filtering the debris of the wind blown from the air conditioner for the air conditioner of the car to ensure that always clean air conditioning air blowing It relates to an air filter debris removal device.

In general, the blowing mechanism of an air conditioner installed in a vehicle is provided with an evaporator constituting a cooling device of the air conditioner in the middle of a blowing duct in which air is sucked from the outside so that the air sucked by the blower is cooled through the evaporator and then discharged into the room. It is supposed to be.

As described above, the air passing through the evaporator in the blower duct becomes indoor air (outer) or outdoor air according to the selection of the air source, and these air contains various foreign matters including dust, and these foreign matters remain together with the air. It will be introduced into the room.

Therefore, the air in the vehicle interior is contaminated due to the inflow of various foreign substances contained in the air, which may adversely affect the occupant. The air duct is generally installed in the air duct to prevent the inflow of foreign substances.

On the other hand, foreign matters continue to accumulate on the surface of the air filter, and after a certain period of time, causing a decrease in the air permeability of the air filter, periodic filter replacement is required.

However, even though the air filter needs to be replaced periodically, the average driver often runs the vehicle without knowing whether the air filter is attached, and the air duct is installed inside the crash pad. There was a problem that can not easily know whether.

Therefore, it is easy to miss the replacement time of the air filter, there is a problem such as deterioration of the performance of the air conditioner according to the reduction of the discharge air volume, deterioration of the filtering performance of the air filter, odor generation in the contaminated air filter.

Therefore, the present invention has been invented to solve the above problems, when the foreign matter accumulated in the air filter installed in the air duct for the air conditioner more than a predetermined value is automatically removed to improve the foreign matter removal performance of the air filter It is an object of the present invention to provide an air filter foreign matter removal device for air conditioners.

The apparatus of the present invention for achieving the above object is, the air filter is installed in the middle of the air blowing duct for introducing air to the air conditioner of the vehicle, the foreign matter removing mechanism is connected to the air filter, the lower end of the air filter There is a foreign material suction mechanism is installed, while a pressure sensor is installed before and after the air filter of the blowing duct, the pressure sensor, the air conditioner operation switch and the blow control switch is connected to the electronic control unit, the pressure sensor and the air conditioner The electronic control unit processes the electrical signals applied from the operation switch and the air blowing control switch, and is configured to selectively operate the foreign substance removing mechanism and the foreign substance suction mechanism according to the result.

In the foreign material removal device of the present invention having such a structure, the foreign material removal mechanism detects the foreign matter in the air filter of the automobile air conditioner by accumulating more than a predetermined value, the foreign material removal mechanism removes the foreign material of the air filter, and the foreign material suction mechanism sucks the removed foreign matter. By removing it, it is possible to obtain an effect of keeping the air blown from the air conditioner at all times clean.

1 is a layout view showing the overall configuration of the foreign matter removal apparatus according to the present invention,

Figure 2 is a block diagram showing a foreign matter suction mechanism of the foreign matter removal apparatus according to the present invention,

3 is a cross-sectional view taken along the line 'A-A' of FIG.

Figure 4 is a perspective view showing the configuration of the air filter frame and the guide rail,

Figure 5 is a perspective view showing a plate gear and a brush connected to the plate gear for removing the foreign matter of the air filter while moving up and down along the guide rail while forming a foreign material removal mechanism according to the present invention.

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

1: Blowing duct 3: Air filter

5: foreign substance removal mechanism 7; Foreign substance suction device

9: pressure sensor 11: pressure sensor

13 air conditioner operation switch 15 air blowing control switch

17: electronic control unit 19: filter frame

21: guide rail 23: plate gear

25: drive motor 27, 29, 31: gear

33: fixed bar 35: brush

37: Hopper 39: Motor

41: foreign material inhaler 43: pipe

45: foreign material filter 47: blower

49: air supply box

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In the air filter foreign matter removal device for an air conditioner of an automobile according to the present invention, an air filter (3) is installed in the middle of a blowing duct (1) for introducing air into the air conditioner of the vehicle, and the foreign matter removal mechanism ( 5) is connected, the foreign material suction mechanism (7) is installed at the lower end of the air filter (3), while the pressure sensor (9, 11) before and after the air filter (3) installed in the blowing duct (1) Each of the pressure detecting sensors 9 and 11, the air conditioner operation switch 13, and the air blowing control switch 15 are electrically connected to the electronic control unit 17. The suction mechanism 7 is characterized in that the operation is controlled by the electrical signal output from the electronic control unit 17.

In particular, the debris removal mechanism 5 is provided with a guide rail 21 in the filter frame 19, the air filter 3 is installed, the plate gear 23 in the guide rail 21 is to slide up and down The drive motor 25 is connected to the plate gear 23 via a plurality of gears 27, 29, and 31, while the drive motor 25 is connected to the electronic control unit 17. In addition, one side of the plate gear 23 is characterized in that the brush (35) for scraping the foreign matter on the air filter (3) is freely rotated around the fixed bar (33).

In addition, the foreign matter suction mechanism 7 is provided with a hopper 37 for collecting the foreign matter separated from the air filter 3 on the bottom surface of the blowing duct 1 in front of the air filter 3, the hopper 37 ) Is connected to the foreign material inhaler 41 which is driven by the motor 39 to suck the foreign matter through the pipe 43, the foreign material intake 41 is characterized in that the foreign material filter 45 is connected. .

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

1 and 2 are diagrams illustrating a connection configuration of the foreign matter removing apparatus according to the present invention. As shown in these drawings, the apparatus according to the present invention includes a blowing duct (1) for introducing wind into an air conditioner of an automobile (1). In the middle of the air filter (3) is installed, the foreign matter removing mechanism (5) is connected to the air filter (3), the foreign material suction mechanism (7) is installed on the lower end of the air filter (3), Pressure sensors 9 and 11 are provided before and after the air filter 3 installed in the air blowing duct 1, respectively, and the pressure sensors 9 and 11, the air conditioner operation switch 13 and the air blowing control switch ( 15 is electrically connected to the electronic control unit 17, and the foreign substance removing mechanism 5 and the foreign substance suction mechanism 7 are also electrically connected to the electronic control unit 17.

Accordingly, the foreign matter removing mechanism 5 and the foreign matter suction mechanism 7 are selectively disposed in accordance with electrical signals applied from the pressure detecting sensors 9 and 11, the air conditioner operation switch 13, and the air blowing control switch 15. It is supposed to work.

Meanwhile, as illustrated in FIGS. 1, 4, and 5, the debris removing mechanism 5 includes a guide rail 21 installed in a filter frame 19 in which an air filter 3 is installed. The plate gear 23 is embedded in the 21 to slide up and down, and the drive motor 25 is connected to the plate gear 23 through a plurality of gears 27, 29, and 31. The drive motor 25 is connected to the electronic control unit 17, and the brush 35 which scrapes foreign substances on the air filter 3 while freely rotating about the fixing bar 33 on one side of the plate gear 23. ) Is installed.

On the other hand, the foreign material suction mechanism (7) is provided with a hopper (37) for collecting the foreign matter separated from the air filter (3) on the bottom surface of the blowing duct (1) just in front of the air filter (3), the hopper 37 ) Is connected to the foreign material inhaler 41 which is driven by the motor 39 to suck the foreign matter through the pipe 43, the foreign material intake 41 has a structure in which the foreign material filter 45 is connected.

In the foreign matter removing apparatus of the present invention having the structure as described above, when the blower 47 connected to the blowing duct 1 is operated, the air of the indoor or outdoor air of the vehicle is transferred to the cooling device of the air conditioner through the air supply box 49. After being introduced and cooled, it is introduced into the interior of the vehicle. At this time, various foreign substances contained in the air passing through the air blowing duct 1 are filtered by the air filter 3.

As the air filter 3 filters the foreign matter in the air, foreign matter accumulates in the air filter 3, and as the foreign matter accumulates, the air pressure before and after the air filter 3 varies.

On the other hand, the front and rear air pressure of the air filter 3 is detected by the pressure sensors 9 and 11, if the front and rear air pressure of the air filter 3 differs by about 30% or more, the electronic control unit 17 In addition to generating a warning signal to the warning light 53 installed on the instrument panel 51, the drive motor 25 of the foreign material removal mechanism (5) is operated.

When the driving motor 25 is operated, the gears 27, 29, 31 connected to the motor 25 are rotated, and the plate gear 23 engaged with the final gear 31 is guide rail ( 21) to move up and down.

Accordingly, the fixed bar 33 installed on the guide rail 21 also moves up and down with the guide rail 21, and the brush 35 rotatably installed on the fixed bar 33 is provided. Moving the air filter (3) is to shake off the accumulated foreign matter.

On the other hand, the brush 35 is to move up and down along the filtration surface of the air filter (3) to shake off the foreign matter, the rotation of the drive motor 25 for transmitting power to the brush 35 will repeat the forward and reverse rotation. It should consist of a stepper motor.

As such, the brush 35 moves up and down along the air filter 3 to remove foreign substances about three times, and the foreign substances falling in the process are formed on the bottom surface of the air duct 1. Will fall.

After the removal of the foreign matter by the brush 35 is completed, the driving of the motor 25 in the foreign substance removal mechanism 5 is stopped, and instead, the motor 39 of the foreign substance suction mechanism 7 is driven and the foreign substance inhaler ( 41) is activated.

At this time, the suction pressure generated by the foreign substance inhaler 41 is transmitted to the hopper 37 through the pipe 43 to suck the foreign substances dropped on the hopper 37 and injects the foreign substance filter 45 to filter the air. Discharge.

Of course, the foreign material filter 45 has a built-in filtration filter and the like can be removed to remove the filtered foreign matter.

When this series of processes is completed, the debris removal operation of the air filter is stopped. Since the debris removal process of the air filter can perform normal debris filtration again, the debris of the air supplied to the room through the air conditioner is always You can filter cleanly.

As described above, in the case of the foreign matter removing device according to the present invention, when an air filter is installed in the middle of a blowing duct for supplying air to an air conditioner of a vehicle, the air filter falls below a predetermined value by detecting the filtration pressure of the air filter. There is a foreign matter removal mechanism that can directly touch the air filter to shake off the dust of the air filter, and by removing the foreign matter shaken off by the foreign matter removal mechanism through the foreign matter suction mechanism, the air supplied to the air conditioner of the vehicle is always By allowing the air filter in a clean state to be filtered, the problem that the indoor air of the vehicle becomes turbid by foreign matters when the air conditioner is operated can be prevented from occurring.

In addition, it is possible to obtain the advantage that one air filter can be effectively used for a long time.

Claims (3)

An air filter (3) is installed in the middle of the air blowing duct (1) for introducing air to the air conditioner of the vehicle, the foreign matter removing mechanism (5) is connected to the air filter (3), the lower end of the air filter (3) The foreign material suction mechanism 7 is installed in the chamber, and pressure sensors 9 and 11 are provided before and after the air filter 3 installed in the blower duct 1, respectively. , The air conditioner operation switch 13 and the air blowing control switch 15 are electrically connected to the electronic control unit 17, so that the foreign substance removing mechanism 5 and the foreign substance suction mechanism 7 are outputted from the electronic control unit 17. Air filter foreign matter removal device for an air conditioner of a vehicle, characterized in that the structure is configured to control the operation by the electrical signal. According to claim 1, The foreign material removal mechanism 5 is provided with a guide rail 21 in the filter frame 19, the air filter 3 is installed, the plate gear 23 in the guide rail 21 It is built to be slidable up and down, and the drive motor 25 is connected to the plate gear 23 through a plurality of gears (27, 29, 31), while the drive motor 25 is an electronic control unit ( 17 is connected to the vehicle, characterized in that the brush (35) is provided on one side of the plate gear 23 to freely rotate around the fixed bar 33 to scrape off the foreign matter on the air filter (3) Air filter debris removal device for air conditioners. According to claim 1, The foreign material suction mechanism (7) is provided with a hopper 37 for collecting the foreign matter separated from the air filter (3) on the bottom surface of the blowing duct (1) just in front of the air filter (3), The hopper 37 is driven by the motor 39 is connected to the foreign material inhaler 41 to suck the foreign matter through a pipe 43, the foreign material intake 41 is connected to the foreign material filter 45 Air filter foreign matter removal device for an air conditioner of a vehicle, characterized in that.