KR20230044986A - Dust collecting apparatus for vehicles - Google Patents

Abstract

The present invention relates to a dust collection device for a movement means, which is very simply maintained, comprising: a brake dust intake unit; a tire dust and road fine dust intake unit; an iron dust collection case including an iron dust collection plate; a first connection hose for connecting a first outlet and a first inlet; a second connection hose for connecting a second outlet and a second inlet; and a filter unit.

Description

Dust collector for transportation {DUST COLLECTING APPARATUS FOR VEHICLES}

The present invention relates to a dust collector for means of transportation, and more particularly, to improve the fine dust environment for pedestrians by reducing non-exhaust fine dust from means of transportation generating dust and additionally collecting re-fugitive dust from roads in connection with a driving system. It relates to a dust collector for a means of transportation.

Republic of Korea Patent Registration No. 10-2012910, a prior art, is a non-exhaust fine dust collector using the flow of actual fluid and triboelectricity. It includes an air pipe mounted on the vehicle, and a dust collector mounted on the vehicle at the outlet of the air pipe to collect the fine dust of the first polarity by being charged with a second polarity opposite to the fine dust.

However, the prior art collects the dust introduced from the wheel house using an electrifying body, which is difficult to maintain and cannot collect dust on the road where triboelectricity does not work, so it is far from improving the environment of roads and sidewalks. This technology has limitations in purifying re-fugitive dust because it is far away and the re-fugitive dust on the road has lost the adhesion of the collecting electrode.

Republic of Korea Patent Registration No. 10-202136771, a prior art, relates to a dust collector for collecting fine dust accumulated on the road surface of a car, non-exhaust fine dust generated by automobile tires, brake pads, disc pads, and other friction, Capture rate of fine dust accumulated on the road surface, non-exhaust fine dust generated by vehicle tires, brake pads, disc pads, and friction by using a Wormshurst machine that induces static electricity by receiving driving force from a car's rotating body It is a fine dust collector using the driving force of a car that can improve

However, the prior art simply operates with driving force in the direction of travel of the vehicle, and a design excluding air resistance is applied to reduce the efficiency of the vehicle. has a downside.

Another prior art is a brake fine dust filter under study by Volkswagen and MANN+HUMMEL, which is expected to be of great help in aesthetics as it can prevent wheels from getting dirty due to dust as well as effective collection of fine dust do. In addition, this fine dust filter aims to remove up to 80% of the fine dust generated from the brakes, and it is not too difficult from the management point of view because the filter can be replaced when replacing the brake pads.

However, the form of attaching the filter directly to the brake pads that Volkswagen is researching has a negative effect on heat dissipation in the case of disc brakes, and drum brakes are starting to be used again as the electric vehicle era comes, but the above research proceeds without drum brakes It has the downside of being anachronistic.

Another prior art is Korean Patent No. 10-1511663 "Dust Dust Collector for Car Wheels", which has a separate structure to block water in case moisture enters the device due to rain. However, since the structure includes a sensing center, a water discharge door member, an actuator, etc., the device is complicated and the installation cost is high.

The present invention has been made to solve the problems of the prior art, and the present invention is a structure that has a positive effect on air resistance, and reduces non-exhaust fine dust of vehicles, such as motorcycles and electric carts, in which dust is generated, as well as automobiles. Additionally, an object of the present invention is to provide a dust collector for means of transportation that improves the fine dust environment of pedestrians by collecting re-fugitive dust on the road in conjunction with a driving system.

In order to achieve the above object, the dust collector for means of transportation according to the present invention has a first inlet formed on one side and a first outlet having a smaller size than the first inlet on the opposite side facing the first inlet. A brake dust suction part having a shape in which the moving passage narrows while going from the first suction port to the first discharge port and installed at a position where dust spreads when the brake is operated among parts surrounding the wheel with an empty inside, and one side A second inlet is formed, and a second outlet having a smaller size than the second inlet is formed on the opposite side facing the second inlet, and the inside is empty, on the back side of the wheel where dust and re-fugitive dust due to tire friction are diffused. A tire dust and road fine dust inlet having a shape in which the moving passage is narrowed while going from the second inlet to the second outlet, and the inside is empty, a first inlet is provided on the side portion, and a second inlet is provided on the lower surface It is provided with a case body having an exhaust port on the upper surface and installed inside the case body, the upper end is coupled to the case body, the upper and lower middle parts are concave inward, and the side part has a curved pipe shape so that the inside is narrowed, and the lower end is An iron dust collection case configured to be spaced apart from the lower surface of the case body and including an iron powder collecting plate made of a magnet, a first connection hose connecting the first outlet and the first inlet, A second connection hose connecting the second outlet and the second inlet and overlapping the outer surface of the iron dust collection case are installed to block the exhaust port, thereby filtering fine dust in the air coming out through the exhaust port, and filtering the outside of the vehicle. It is configured to include a filter unit connected to the air breather through.

In addition, as a ramjet structure installed to communicate with the second connection hose and the iron dust collection case, the introduced air passes before entering the iron dust collection case,

The ramjet structure has an outer tube with a middle portion convex outward to form a jar shape, and an inner space installed in the inner space of the jar-shaped part of the outer tube and having a shape in which the diameter increases and then decreases along the air flow direction. As a sieve, the outer surface of the inner body is installed at a distance from the inner surface of the outer tube body to form an air flow passage in the inner portion of the outer tube body surrounding the inner body A ramjet structure including an inner body It is preferable to include more.

In addition, it is preferable to further include a first blowing fan installed in the middle of the first connection hose and a second blowing fan installed in the middle of the second connection hose.

In addition, it is preferable that the first blowing fan is configured to operate only during low-speed driving.

Preferably, the second blowing fan is configured to be operated when driving at low speed or when recognizing a pedestrian by a driving system camera.

In addition, the brake may be a drum brake, a through hole may be formed on an outer surface of the drum brake, and the first suction port of the brake dust suction part may be configured to communicate with the through hole of the drum brake.

As described above, according to the dust collector for means of transportation according to the present invention, the aerodynamic efficiency of the means of transportation equipped with the present invention is increased by using the Coanda effect, the Venturi effect, and the ramjet structure, thereby providing a positive effect on fuel efficiency.

In addition, the separation of the dust inlet into a part for inhaling dust with strong magnetism and a part for inhaling dust with little magnetism has a positive effect on the performance and lifespan of the HEPA filter used in the present invention.

Since dust with strong magnetic properties passes through the magnet inside the cylindrical structure using the Coanda effect, the dust collection efficiency is increased, and maintenance is very simple due to the structure that is separated when replacing the filter.

In addition, in conjunction with the driving system, it recognizes when there is a pedestrian on the pedestrian road and determines the probability that dust will flow into the pedestrian's trachea due to the road environment. It has the advantage of being able to provide a pedestrian road in the environment, and stably collecting dust by operating the propeller when the vehicle is moving at a low speed or the air intake is insufficient.

In addition, unlike the prior art, which requires the installation of a separate water blocking means, the present invention adopts an aerodynamic design, so even if moisture enters the device without the need for a separate device, the moisture is dried due to the driving wind, and additionally waterproof. It has the advantage that moisture does not adversely affect the performance of the filter by using a HEPA filter supported.

1 is an overall configuration diagram of a dust collector for moving means according to the present invention.
Figure 2 is a perspective view showing a cargo truck equipped with a dust collector for means of transportation according to the present invention.
3a and 3b are perspective views illustrating a brake dust suction unit and a tire dust and road fine dust suction unit of the dust collector for means of transportation according to the present invention.
Figures 4a and 4b is a perspective view and a front view showing the iron dust collection case of the dust collector for means of transportation according to the present invention.
5a and 5b are a perspective view and a front view showing a ramjet tank of a dust collector for a means of transportation according to the present invention.
6a and 6b are flow charts showing the operation process of the blowing fan according to the present invention.

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

1 is a device configuration diagram showing a dust collector for means of transportation according to the present invention, and FIG. 2 is a perspective view showing a vehicle in which the dust collector for means of transportation according to the present invention is installed.

The dust collector for means of transportation according to the present invention includes a brake dust suction unit 100, a tire dust and road fine dust suction unit 200, an iron dust collection case 300, a first connection hose 400, and a second connection hose 500, a filter unit 600, a ramjet structure 800, a first blowing fan 900, and a second blowing fan 1000.

3A and 3B show the brake dust suction unit 100 and the tire dust and road fine dust suction unit 200 together, of which the smaller one is the brake dust suction unit 100 and the larger one is the tire dust and It is the road fine dust suction part 200. The reason why the size of the brake dust intake unit 100 and the tire dust and road fine dust intake unit 200 is different is that the tire dust and the road fine dust spread in a wider range than the brake dust, so the dust and fine dust are relatively large. This is because the dust intake needs to be wide.

Both the brake dust suction unit 100 and the tire dust and road fine dust suction unit 200 are hollow structures with holes formed on each of a pair of facing surfaces, as shown in FIGS. 3A and 3B, and contain dust. The first inlet 110 and the second inlet 210, which are holes through which air is first introduced, are formed the widest, and the width of the passage through which the air entering from the first inlet 110 and the second inlet 210 passes gradually increases. When viewed from the side to be reduced, it is configured in the shape of an isosceles trapezoid, and the first outlet 120 and the second outlet 220 are formed as circular holes much smaller than the first inlet 110 and the second inlet 210.

The reason why the first inlet 110 and the second inlet 210 have a structure in which the area is initially wide and gradually narrows is to increase the suction force by the Venturi effect. The Venturi effect is according to Bernoulli's law. In fluid mechanics, when the fluid flowing through a pipe encounters a narrower part, the speed increases and the pressure decreases to conserve mechanical energy. It has the effect of strengthening the suction power of the air flowing into it.

The brake dust suction unit 100 is for inhaling dust generated during brake operation, and as shown in FIG. 1, the disc brake 10 is located above the disc brake 10, which is a position where dust spreads the most during brake operation. ) and slightly apart, one is provided.

1 is expressed based on the fact that the braking device is a disc brake, and when the drum brake is mounted on the vehicle, as shown in FIG. It is preferable to attach the brake dust suction part 100 to the outer circumferential surface of the drum brake 20 so that the ball engages and communicates with the first suction port 110 of the brake dust suction part 100. In this way, it is possible to solve the disadvantage of the drum brake structure that it is difficult to discharge dust generated from the brake.

As shown in FIG. 2, one or two tire dust and road fine dust suction units 200 are installed at the rear of the wheel among the wheel housing covers.

In the iron dust collection case 300, an iron powder collecting plate 320 for the purpose of collecting iron powder, which is the main component of brake dust, is installed, and the Coanda effect is achieved due to the curved shape of the iron powder collecting plate 320. It is aimed at strengthening the suction function by raising it.

The iron dust collection case 300 has an empty inside, a case body 310 having a first inlet 311 on the side surface, a second inlet 312 on the lower surface, and an exhaust port 313 on the upper surface. And, the upper end is coupled to the case body 310, the upper and lower middle parts are concave inward, and the side part has a curved pipe shape so that the inside is narrowed, and the lower end is configured to be spaced apart from the lower surface of the case body 310, and the magnet It is configured to include an iron powder collecting plate 320 as a material.

The inner space of the iron powder collecting plate 320 has a structure that narrows and then widens again along the direction of air movement, and has a structure in which the surface has a curved shape to cause a Coanda effect.

In this specification, the up, down, left, and right directions of the iron dust collection case 300 are determined based on the fact that the exhaust port is formed on the upper surface of the case body 310 for convenience in writing the specification, and the iron dust collection case 300 lies horizontally when mounted. Of course, it can also be erected vertically.

The first connection hose 400 connects the first outlet 120 and the first inlet 311, and the second connection hose 500 connects the second outlet 220 and the second inlet 312. am.

A widely expanded space is formed in the middle of the first connection hose 400 so that the first blowing fan 900 can be installed, and the first blowing fan 900 operated by an electric signal is installed in this space, A widely expanded space is formed in the middle of the second connection hose 500 so that the second blowing fan 1000 can be installed, and the second blowing fan 1000 operated by an electric signal is installed in this space. When the second blowing fan 1000 has a propeller with a larger diameter than the first blowing fan 900 and it is necessary to forcibly increase the air suction power, the first blowing fan 900 and/or the second blowing fan 1000 ) is operated automatically or manually.

The reason why the first blowing fan 900 and the second blowing fan 1000 are installed is that the wind does not blow enough to suck dust when the vehicle moves at a low speed.

The ramjet structure 800 is installed to communicate with the second connection hose 500 and the iron dust collection case 300, and the introduced air passes through before entering the iron dust collection case 300. It is composed of an inner body 820.

The outer tube body 810 of the ramjet structure 800 has a pot shape with a middle portion convex outward, and both ends have a tube shape with a constant diameter, and the inner body 820 of the ramjet structure 800 has an outer It is installed in the inner space of the pot-shaped part of the tube body 810 and has a shape in which the diameter increases and then decreases along the air flow direction, and the outer surface of the inner body 820 is spaced apart from the inner surface of the outer tube body 810. An air flow passage is formed in the inner part of the outer tube 810 surrounding the inner body 820 so that the air introduced into the ramjet structure 800 passes through the air flow passage around the inner body 820 and exits do.

The ramjet structure 800 uses the ram effect applied to a conventional ramjet engine, and compresses and releases air to increase the air flow rate to improve the suction performance of the tire dust and road fine dust intake unit 200. .

The filter unit 600 overlaps the outer surface of the iron dust collection case 300 and is installed to block the exhaust port 313, thereby filtering fine dust in the air escaping through the exhaust port 3131 and an air breather exposed to the outside of the vehicle. It is connected to 700 to discharge clean air that has passed through the filter unit 600.

The filter unit 600 in this embodiment is a HEPA filter capable of filtering out fine dust.

As shown in FIG. 2 , the air breather 700 is provided on the side surface of the vehicle body located behind the wheel, and the filter unit 600 installed therein can be replaced through the air breather 700 .

The operation of the dust collector for moving means according to the present invention configured as described above will be described as follows.

The reason why the brake dust intake unit 100 and the tire dust and road fine dust intake unit 200 have a structure in which the cross-sectional area gradually narrows is to increase the suction power by Bernoulli's law and the Venturi effect, and to inhale tire dust and road fine dust. Air sucked into the unit 200 is sucked in by the ramjet structure 800 and becomes stronger.

The air introduced by the brake dust suction unit 100 contains a large amount of iron powder, which is the main component of brake dust. When the iron dust collection case 300 is introduced into the case body 310 through the first inlet 311 formed on the side surface of the iron dust collection case 300, the air containing iron powder hits the iron powder collecting plate 320 blocking the air flow. As it flows downward along the curved surface of the iron powder collecting plate 320 formed concavely and concavely, the iron powder contained in the air adheres to the iron powder collecting plate 320 whose surface is made of a magnet. At this time, due to the Coanda effect, which means that the fluid flows along the curvature of the curved surface, the air entering the first inlet 311 flows along the surface of the iron powder collecting plate 320, thereby increasing the effect of collecting iron powder in the air. further improved

Since the air entering the first inlet 311 can only escape through the gap between the lower end of the iron powder collecting plate 320 and the bottom surface of the case body 310, the air entering the first inlet 311 can pass through the case body ( 310) enters through the second inlet 312 formed on the lower surface and joins air flowing upward, and the upper and lower middle portions are narrowed and then widened, so that the suction power is increased by the Venturi effect and the Coanda effect.

That is, the air entering the first inlet 311 and the air entering the second inlet 312 are joined at the inlet side of the iron powder collecting plate 320, and the inner circumferential surface of the iron powder collecting plate 320 is formed by the Coanda effect. It flows along, and due to the Coanda effect, the amount of air flowing inside the iron dust collection case 300 is greatly increased.

The air flowing upward past the iron powder collecting plate 300 escapes through the exhaust port 313 formed on the upper surface of the iron dust collection case 300, and the filter unit 600 that is in contact with the exhaust port 313 removes the air from the air. Fine dust and dust are filtered out, and clean air is discharged through the air breather 700.

The dust sucked in from the second inlet 210 is tire dust and rescattered dust and is not magnetic, so it does not go through a path where it changes its course by hitting a magnet, but goes directly to the air breather 700 through the filter unit 600, which is a HEPA filter. will go

On the other hand, the first blowing fan 900 and the second blowing fan 1000 do not operate normally but operate only when the vehicle is traveling at low speed, and the process of determining whether they operate is the same as the flowchart shown in FIG. 6A.

As shown in FIG. 6B, exceptionally, when the camera of the driving system recognizes that there is a pedestrian right next to the vehicle, the rotational speed of the second blowing fan 1000 increases to inhale re-fugitive dust and fine dust on the road. Suppresses adverse effects on the trachea of pedestrians due to the movement of vehicles.

As described above, the present invention has been described only with preferred specific examples, but it is clear to those skilled in the art that various changes and modifications are possible within the scope of the technical spirit of the present invention based on the specific examples described above, and these variations and modifications are within the scope of the appended claims.

100: brake dust intake 110: first intake
120: first outlet
200: tire dust and road fine dust intake
210: second inlet 220: second outlet
300: iron dust collection case 310: case body
311: first inlet 312: second inlet
313: exhaust port 320: iron powder collection plate
400: first connection hose 500: second connection hose
600: filter unit 700: air breather
800: ramjet structure 810: outer tube
820: inner body 830: air flow passage
900: first blowing fan 1000: second blowing fan

Claims (6)

A first inlet is formed on one side, and a first outlet smaller in size than the first inlet is formed on the opposite side facing the first inlet, and the inside is empty, and the dust diffuses when the brake is operated among the parts surrounding the wheel. a brake dust suction unit installed at a position where the moving passage narrows while going from the first suction port to the first discharge port;
A second inlet is formed on one side, and a second outlet smaller in size than the second inlet is formed on the opposite side facing the second inlet, and the inside is empty, and dust and re-fugitive dust caused by tire friction are diffused. a tire dust and road fine dust intake unit installed behind the wheel and having a shape in which the moving passage narrows while going from the second intake port to the second outlet;
A case body having an empty interior, having a first inlet on the side surface, a second inlet on the lower surface, and an exhaust port on the upper surface, installed inside the case body and having an upper end coupled to the case body, and upper and lower middle portions An iron dust collection case comprising an iron powder collecting plate made of a magnet as a material and configured to be spaced apart from the lower surface of the case body, the lower end of which has a curved pipe shape so that the inside is narrowed into the inside of the case;
a first connection hose connecting the first outlet and the first inlet;
a second connection hose connecting the second outlet and the second inlet; and
It is installed on the outer surface of the iron dust collection case to block the exhaust port, thereby filtering fine dust in the air coming out through the exhaust port, and including a filter unit connected to an air breather leading to the outside of the vehicle. Dust collector for means of transportation. According to claim 1,
A ramjet structure installed to communicate with the second connection hose and the iron dust collection case so that the introduced air passes before entering the iron dust collection case,
The ramjet structure has an outer tube with a middle portion convex outward to form a jar shape, and an inner space installed in the inner space of the jar-shaped part of the outer tube and having a shape in which the diameter increases and then decreases along the air flow direction. As a sieve, the outer surface of the inner body is installed at a distance from the inner surface of the outer tube body to form an air flow passage in the inner portion of the outer tube body surrounding the inner body A ramjet structure including an inner body Dust collector for means of transportation, characterized in that it further comprises. According to claim 1 or 2,
The dust collector for moving means further comprising a first blowing fan installed in the middle of the first connection hose and a second blowing fan installed in the middle of the second connection hose. According to claim 3,
The first blowing fan is configured to operate only during low-speed driving. According to claim 3,
The second blowing fan is configured to be operated when driving at low speed or when a pedestrian is recognized by a driving system camera. According to claim 1 or 2,
The brake is a drum brake, a through hole is formed on an outer surface of the drum brake, and the first suction port of the brake dust suction part is configured to communicate with the through hole of the drum brake.

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