JPS60132616A - Air purifier for automobile - Google Patents

Abstract

PURPOSE:To remove dirty air in an automobile with good efficiency by excellently performing the recirculation of air in the compartment of the automobile, by providing a suction port to the upper surface of a main body case while providing emitting ports to both left and right side surfaces. CONSTITUTION:Air taken into a main body case from the intake port 2 thereof is successively passed through a prefilter 15 and a dust removing filter 14 to remove coarse and fine dusts therein and deodorized by a deodorizing filter 13 to be emitted from emitting orifices 3 provided to both left and right sides of the wind tunnel of a sirocco fan 9. When this air purifier is arranged on the parcel chef cover of an automobile, air emitted from the emitting orifices 3 provided to both sides is directly impinged to a rear window and, thereafter, the recirculation force of air to the front seat side of the automobile becomes strong and air is recirculated throughout the compartment of the automobile. As a result, dust removing and deodorizing effects are enhanced.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an air cleaner for an automobile that is installed on a parcel chef cover in an automobile and removes dust and odor from the interior space of the automobile and sends out fresh air. It is something.

[Background technology]

Conventional air cleaners for automobiles use a dielectric filter as a dust removal filter, and are configured to cause a glow discharge on the entire surface of the dielectric filter to generate anions. Glow discharge is performed by increasing the voltage of the battery in the automobile to 6000 to 8000 V using a step-up transformer, and using a flat plate electrode with a wire electrode as a positive terminal and a negative terminal at both ends. Dirty air inside the vehicle passes through this discharge space, and the dust is charged with negative ions and attached to the dielectric filter, thereby removing the dust. Deodorization is achieved by constructing a filter with activated carbon attached immediately after the dielectric filter, and utilizing the odor adsorption effect of activated carbon.

Regarding air circulation, dirty air from inside the car is sucked in through the front of the air purifier installed on the Basel Chef cover inside the car, and after passing through the dust removal filter and deodorizing filter in the air purifier, it is released inside the car. The rotating force of the fan discharges air above and behind the air cleaner to circulate the air inside the car.

Figure 1 shows the air flow due to air circulation.

In the figure, 51 is a Basel chef cover, 52 is an air cleaner, 53 is a rear seat, 54 is a rear window, 55
56 is the upper part of the trunk, 56 is the front seat, 57 is the console box, 58 is 70/toe window, and 59 is the hood. .

In this way, the air purifier 52 is connected to the Basel chef cover 5.
1, the air cleaner 52 sucks in dirty air from inside the car from the front and discharges it toward the top of the air cleaner 52 or toward the rear of the rear window 54, creating an air flow from the rear window to the roof. and generates circulating air inside the car. In this way, when the air purifier 52 is configured to suck in from the front upward or discharge from the rear, the discharged air flows along the ceiling in the direction of the front seat 56, so that the hot air of smoke such as cigarettes flows near the ceiling of the air purifier 52. When the air approaches the air purifier 52, the air tries to be sucked in, but when it approaches the air purifier 52, it interferes with the discharged air, causing circulation to flow backwards. As a result, the efficiency of purifying the air inside the car was poor.

[Purpose of the invention]

This invention allows for good air circulation within the vehicle interior.
To provide an air cleaner for a car that can efficiently remove dirty air inside a car.

[Disclosure of the invention]

The in-vehicle air purifier of the present invention has a suction port on the top surface of the main body case and discharge ports on both left and right sides. The impeller of the fan is arranged to rotate around a vertical axis.

Due to the direction of rotation of the impeller, the direction of air discharged from one of the left and right outlets is diagonally backward, but the direction of air from the other outlet is diagonally forward. A deflection blade that changes the direction of the wind from diagonally forward to diagonally backward is provided within the discharge port.

With this configuration, when the Basel chef cover is installed, the air blown out from the left and right outlets will not hit the rear window once and flow toward the front seats, which will improve the air circulation in the car. This improves the cleaning effect.

Embodiment An embodiment of the present invention is shown in FIGS. 2 to 9. In the figure, reference numeral 1 denotes a main body case, which has a grid-shaped suction port 2 on almost the entire top surface, and a grid-shaped discharge port 3.4 on both sides. The main body case 1 is constructed by fixing an upper case 5 and a lower case 6 with decorative screws 7 and square nuts 8. An impeller 10 of a sirocco fan 9 is housed in the lower part of the main body case 1. A fan cover 12 having a bell mouth 11 is placed above the impeller 10, on which a deodorizing filter 13 and a dust removing filter 14 are placed, and further a pre-filter 15 is arranged.

The motor 16 of the sirocco fan 9 is fixed to the lower case 6 with four embedded nuts 17 and bolts 18. A fan washer 17 is inserted into the output shaft 16a of the motor 16, and the impeller 10 is press-fitted onto the output shaft 16a and fixed with a flat washer 18 and a nut 19.

An Archimedean spiral wind tunnel wall 20 is configured inside the lower cover 6, and a wind tunnel wall 21 provided on the lower surface of the fan cover 12
(FIG. 7) to form a wind tunnel that accommodates the impeller 10. The wind tunnel wall 20.21 has tongue portions 20a r 21a that open to the discharge ports 3, 4 on both the left and right sides of the main body case 1. The impeller 10 rotates counterclockwise 9, but the impeller 1
In the discharge port 4 on the side where the 00 rotation direction is rearward (right side in FIG. 6), a deflection tool 22 whose discharge direction is diagonally rearward is provided protruding from the case 6, and is fitted into the deflection blade 22. A deflection blade 22' is provided to protrude from the fan cover 12.

A discharge port grid fitting groove is formed in the discharge port 3.4 of the lower case 6, and the discharge port grids 3' and 4' are fitted into this groove. The fan cover 12 is fixed to the lower case 6 by providing holes for tapping screws on the outside of the wind tunnel wall 20 of the lower case 6, and screwing in four tapping screws from the upper surface of the fan cover 12. In addition, the wind tunnel wall 20 of the lower case 6 is designed to have the width of the main body cooper 1 and the wind tunnel wall 20 in order to make the central part of the main body case 1 as short as possible and to produce as much air volume as possible.
are formed on the same plane at the center of the main body case 1.

The lattices of the outlet gratings 3' and 4' of the left and right outlets 3 and 4 have an inclination angle α of about 7° to 15° on the outside with respect to the horizontal plane. In addition, a fragrance case 23 is provided at the left and right discharge ports 3.degree. 4, and an air freshener is placed inside the case 23, so that the discharged air spreads a refreshing scent inside the car.

The deodorizing filter 13 is made of a filter case made of punched metal filled with a carbon fiber and granular activated carbon, and has a central hole 13a in the center into which the lid 12a of the fan cover 12 fits. The dust removal filter 14 is made up of F paper which is folded into a corrugated shape so as to accommodate a wide surface area, and a filter frame provided around the outer periphery of the F paper.

The air blowing capacity of the sirocco fan 9 is switched to two levels of strength and weakness. This means is achieved by inserting a voltage dividing resistor 24 in series with the motor 16. The voltage dividing resistor 24 is fixed to a voltage dividing resistor mounting plate 25 made of a metal plate such as iron.
It is attached so as to close the notch opening 26 formed in the wind tunnel wall 20 of the case 6, and the wind tunnel wall 20 and the partial pressure resistor mounting plate 25 are
so that they are approximately on the same plane. 27 is an iron piece for holding down the lead wire 28 of the motor 16. Lead wire 2 in the wind tunnel
8, a part of the bottom of the wind tunnel is made into four parts, and a lead wire 28 is passed through this recess and is held down by an iron piece 27.

29 is a printed circuit board that houses a light emitting diode 30 for displaying magnetic flux (-1 digit).
It lights up when the power is turned on normally, but it does not light up when the terminal is connected in reverse.

The air sucked in from the suction port 2 of the operating body Cooper 1 is filtered to remove coarse dust by a pre-filter 15, and then passed through the dust removal filter 1.
After fine dust is removed in Step 4, it is deodorized by the deodorizing filter 13, and Sirocco 7779 (Q) is discharged from the left and right outlets 3.4 through the wind tunnel 3. Since the rotation of the impeller 10 is counterclockwise, the discharge direction is diagonally backward, as shown by the arrow Q in FIG.
It faces diagonally forward as shown by ', but it turns diagonally backward as shown by arrow R guided by the deflection wing 22.

Therefore, when this 40 ft air cleaner is installed on the parcel chef cover 51 of an automobile as shown in FIGS. 8 and 9, the air discharged from the discharge ports 3.4 on both sides directly hits the rear window 54. Since the discharged air directly hits the rear window 54 in this manner, the air circulation force towards the front seat 56 of the automobile is strengthened, and the air is circulated throughout the interior of the automobile as shown by the arrow in FIG. 9. Therefore, dust removal and deodorization efficiency are improved. The air circulation at this time is shown in a side sectional view as shown in FIG.

That is, the air discharged from the left and right discharge ports 3 and 4 so as to hit the rear window 54 travels along the left and right door windows to the upper part of the front seat 56 and the console box 57. Here, since there is a left and right air flow, the air passes near the center of the car and above the rear seat 53, reaches above the air cleaner 4°, and is sucked in from the suction port 2 on the top surface of the air cleaner. As hot air such as cigarette smoke rises, a portion of the air sucked into the air cleaner 40 passes through the rear window 54.
However, this air is also sucked in from the suction port 2 on the top surface of the air cleaner 40. Therefore, cigarette dust and odor are efficiently cleaned. The suction port 2 is provided on the top surface,
Therefore, the opening area can be formed larger than that provided on one other surface, and it is easier to suck in dirty air. The impeller 10 has a large diameter, is thin, and rotates around a vertical axis, and a large suction port 2 is provided on the top surface of the main body case 1 to remove dust from a large area. By using the removal filter 14, it is possible to provide discharge ports 3.4 for uniform discharge on both the left and right sides. That is, the dust removal filter 14 can be expanded to approximately the same cross-sectional area as the main body case 1, improving the dust removal ability, and the above-mentioned circulation ability can be improved by blowing from both sides.

The outlet grid 3' is tilted downward at an angle of 7° to 15° from the horizontal plane, which prevents interference between the intake air and the outlet air when installed in an automatic vehicle, and improves the interior of the vehicle. improves air circulation, thereby increasing dust removal ability.

The voltage dividing resistor 24 for fan speed switching is connected to the voltage dividing resistor mounting plate 2.
5 and is installed facing the wind tunnel of the lower case 6, it is cooled by the discharged air and temperature rise is prevented. Although the partial pressure resistor mounting plate 25 is disposed so as to be exposed to the discharge air, there is no problem of pressure loss of the discharge air because the partial pressure resistance mounting plate 25 is provided on substantially the same plane as the wind tunnel wall 20.

FIGS. 10 and 11 show modified examples of the filter used in the present invention. The filter 31 in this example is made by bending F paper 32, which serves as a dust removal filter, into a wave shape to form a filter frame 31.
3, and the bottom of the filter frame 33 is covered with a wire mesh or
/ Filter paper 3 is provided with a ventilation wall 34 made of metal, etc.
A deodorizing agent 35 is filled between the two. The filter frame 33 is connected to the r paper 32 and the ventilation wall 34. It is molded simultaneously with the deodorant 35. The ventilation wall 34 may be formed integrally with the filter frame 33 from the same material.

When the filter 31 is configured in this way, a larger space can be taken up for providing the p paper 32 serving as the dust removal filter, compared to a case where the dust removal filter and the deodorizing filter are formed separately. Therefore, the development surface St of p paper 32
By doing so, you can obtain an air purifier with low pressure loss, good air volume characteristics, and high dust removal ability.

FIGS. 12 and 13 show other modifications of the filter. This filter 36 has a deodorizer 35 placed on both sides of a sheet of paper 32, and the upper portion of the P paper 32 where the deodorizer 35 is placed is covered with a breathable material 37 such as a sponge. The other configurations are similar to the filter 31 in FIGS. 10 and 11.

With this configuration as well, the space for providing the deodorizing filter can be omitted, and therefore the area in which the F paper 32 for dust removal is developed can be increased, thereby making it possible to obtain an air cleaner with low pressure loss and high dust removal ability.

〔Effect of the invention〕

The air cleaner for an automobile according to the present invention has the advantage that air circulation inside the automobile is good and dirty air inside the automobile can be efficiently removed.

[Brief explanation of drawings]

Fig. 1 is a vertical side view of a car equipped with a conventional air purifier, Fig. 2 is a perspective view of an embodiment of the present invention, Fig. 3 is a cutaway plan view thereof, and Fig. 4 is a cutaway front view thereof. , FIG. 5 is a cutaway side view of the same, FIG. 6 is a plan view of the lower case, and FIG. 7 is a bottom view of the fan cover.
Fig. 8 is a vertical cross-sectional side view of a car equipped with the car air cleaner of the same embodiment, Fig. 9 is a cross-sectional plan view thereof, Fig. 10 is a plan view of a modified example of the filter, and Fig. 11 is its Xl- Xl
A line sectional view, FIG. 12 is a plan view of another modification of the filter,
FIG. 13 is a sectional view of the shoe-xIIIti. 1...Main body case, 2...Suction port, 3.4...Discharge port, 3'...Discharge port grid, 9...Sirocco fan, 10...Blade*weight, tx...・Bellmouth, 12...
・Fan power/< -113...Deodorizing filter, 14・
...Dust removal filter, 15...Pre-filter, 16...
- Motor, 20.21 ... Wind tunnel wall, 22 ... Deflection blade, 24 ... Partial pressure resistance, 25 ... Partial pressure resistance mounting plate, 2
6...Notch opening

Claims (3)

[Claims] (1) A sirocco fan having a main body case having a suction port on the top surface and a discharge port on both sides, and an impeller installed approximately in the center of the main case and rotating around the vertical axis 9;
A filter is installed in the air passage in the main body case, and a filter is provided in the discharge port on the side where the rotation direction of the impeller faces rearward of the main body case among the two discharge ports. An air purifier for automobiles equipped with deflection blades positioned diagonally at the rear of the case. (2) An opening is provided in the wind tunnel wall of the sirocco fan in the vicinity of the discharge port, the opening is closed and a partial pressure resistor mounting plate is provided, and the partial pressure for switching the air volume of the sirocco fan is provided. The air cleaner for an automobile according to claim 1, wherein a resistor is attached to the partial pressure resistor mounting plate by protruding from the opening. (3) A patent in which the discharge port is provided with a discharge port grid consisting of a plurality of horizontally extending grids, and each of the grids is tilted downward at 7° to 15° to the outside of the discharge port with respect to the horizontal direction. An air cleaner for an automobile according to claim (1).