JPS59217430A - Air cleaning machine - Google Patents

Abstract

PURPOSE:To simplify the detection of timing for exchanging a filter by a constitution wherein the dust collecting filter is arranged so as to face to the inside of a suction port on a force cover and a filter exchange indicating means is provided on the opposing surface of the filter. CONSTITUTION:Indoor air is sucked from the latticed suction port 14 of the force cover 4 and is passed through a smoke arresting electric filter 8 and an active carbon filter 9, thereafter, is returned into a room from the blow-off port 15 of the filter 2. The force cover 4 is provided with the filter exchange indicating window 17 and a filter exchange indicating label is adhered on the periphery of the window 17. According to this method, the exchange timing of the filter 8 is decided by a timing when the filter 8 has been contaminated into the same degree as the color of the label. Thus, the exchange timing of the filter may be determined easily and the handling convenience of the machine may be improved.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an air purifier that is installed indoors, circulates indoor air, and purifies indoor air of dirt using an air purifying means provided within the main body. .

[Prior art]

Conventionally, there have been air cleaners for this purpose, such as high-pressure charging, electrostatic precipitator cleaners with electrode plate precipitators, or air purifiers using a pressure-drop mechanical filter. The former can be reused after cleaning, but the equipment is expensive and has high pressure parts, making maintenance difficult. The latter has a large pressure loss.

In other words, since the ventilation fold is large, there are drawbacks such as a large blower and loud operating noise.

Another problem with air cleaners is that they require a means to indicate when to clean or replace them from a maintenance perspective. Pressure drop type dust collection filters can be detected by the pressure difference between the front and rear of the filter due to the eye block, but the low pressure drop type filter described in this invention has small pressure changes and can be detected using the same method. I can't.

[Purpose of the invention]

SUMMARY OF THE INVENTION In view of the above drawbacks, the present invention provides an air cleaner that is easy to use and allows users to easily know when to replace the filter.

[Summary of the invention]

The gist of the present invention is that a low-pressure horizontal electret dust collection filter that sucks dust particles using electrical and mechanical collection forces is arranged so that air can flow facing the suction port of the front cover. Another feature is that a filter replacement display means is provided on the surface of the front cover facing the dust collection filter.

[Embodiments of the invention]

An embodiment according to the present invention will be described with reference to FIGS. 1 to 3.

The main external components of the main body 1 are a frame 2, a rear cover 3,
It consists of a front cover 4. The main body includes an electric motor, blades 6, power cord 7, smoke collecting electret filter 8, and an activated carbon filter 9 for removal. 10.
Reference numeral 11 denotes an air volume switching knob and a pull string for controlling the rotation of the electric motor 5. 12 is the main body leg when used on a tabletop, 1
3 is a metal fitting for hanging the main body when in use. Electric motor 5
As the blades 6 rotate, indoor air is sucked through the lattice-shaped suction port 14 of the front cover 4, passes through the electret dust collection filter 8 and the activated carbon filter 9, and is discharged through the air outlet 15 of the frame 2. circulated indoors. Reference numeral 16 denotes an elastic seal provided to prevent air from entering around the filter. 17 is a filter replacement display window section which is a feature of the present invention. Reference numeral 18 denotes a cord hook that can be wrapped around the power cord 7 when there is excess length.

19 is a handle that can be held with one hand when moving the main body. In FIG. 4, reference numeral 2o denotes a thread-proofing member that supports the motor 5 on the motor support portion 21 of the rear cover 3 in a vibration-proof manner. 22 is a capacitor for starting the motor, and 23 is a motor control switch. The air volume switching knob 10 is attached to the shaft portion 24, and the drawstring 11 is attached to the shaft portion 24.
is engaged with the lever portion 25, and can be selectively operated using either the air volume switching knob 1o or the pull string 11. 2
6 is a switch support member that fixes the switch 23 to the rear cover 3. 27 is a rear cover gap.

In FIG. 5, the internal shape of the rear cover 3 is clarified. 28 is a rear cover casing for rectifying and blowing out the wind, and 29 is a protruding frame portion that firmly supports the motor support portion 21. The handle 19 is arranged in the protrusion frame part 29 together with the motor support part 21.

18a indicates the shape of the back side of the cord hook 18"rs
b. The rear cover 3 is arranged on the outside of the rear cover casing 28 at the corner to prevent air from flowing in through the opening for forming the cord hook 18.
1 guide tube. In FIG. 6, reference numeral 31 indicates a frame casing for rectifying the discharge flow of the blades 6, 32 a suction orifice portion of the blades 6, and 33 a filter receiver portion for preventing deformation of the filters 8 and 9. 34 is the frame 2 and the rear cover 3
There is a frame fixing hole for assembly. Reference numeral 35 denotes a frame pawl portion that engages the front cover 4 with the frame 2 in a detachable manner. They are arranged symmetrically with respect to the top, bottom, left and right of the frame. Reference numeral 36 denotes a rail portion for attaching the main body leg 12 to the main body leg 12 in a slidable and removable manner. Figure 7 shows an example of how the main unit 1 is installed (sewn indicates tabletop use, (C) indicates wall-mounted use, (B) indicates use for indoor air circulation during cooling, and (C) indicates use for indoor air circulation during heating). Appropriate. Figure 8 shows the main body 111.
41112 shows how to remove the main body leg claw part 37 from the rail part 36 of the frame 2. It can be removed by pushing it with your fingers, and when attaching it, you simply push it in along the rail. Figure 9 shows wall mounting bracket 3.
8 shows how to hang the metal fitting 13 on the main body. In FIG. 10, the case where the device is used on a tabletop is shown, and the symbol (■) is a case where it is used on a wall, and the orientation of the front cover 4 in relation to the frame 2 is different. The legs 12 of the main body are used only when used on a tabletop.

The drawstring 11 is used when hanging on the wall. FIG. 11 is a diagram showing the operation procedure for the air volume switching knob 1o. Turn the knob 39 with your finger, and set the display panel 4o's "Off", "Strong", "Medium", and "Weak" indications to the alignment marks written on the frame 2. 41. FIG. 12 explains that the air volume switching knob 10 has a display function by operating the pull string 11.

In FIG. 13, details of the main body leg fitting portion 37 of the main body leg 12 and the main body leg attachment of the frame 2 are shown in detail of the guide groove portion 42 which is slidably engaged with the rail portion 36. In FIG. 14, the shape of the peripheral plate part 42 of the knob part 39 of the air volume switching knob 1o is a seesaw shape in which the excavated soil is the plate part 428 on one side and the front element is the plate part 42b on the other side. .

This has an effect similar to the shape of a duck when rotating the knob 39, and rotates clockwise, but rotates counterclockwise due to the inclination of the plate 42 by the fingers. There is. The switch 23 used in this embodiment is a rotary and pull type switch, and by adding protection for one-way rotation in this way, damage to the switch can be prevented. 1st
In Figure 5, the indoor air sucked through the front cover 4 is
It is shown that the water first flows to the electret filter 8 and then to the activated carbon filter 9. The electret dust filter 8 has the function of subjecting polypropylene fibers, which are polymeric materials, to a charging process at the time of manufacture, and electrically attracting passing dust particles to the fiber layer and collecting them. Since it is a fiber layer filter, it has the above-mentioned electrolytic effect in addition to mechanical collection, and has the effect of collecting even very small smoke particles of about 0.5 μm. The activated carbon filter 9 removes odors from the air through the adsorption action of activated carbon particles. As shown in FIG. 16, an electret passenger filter 8 and an activated carbon filter 1 are installed in the filter support frame 44 of the front cover 4.
They are placed in the stacking order of Ilter 9. Reference numeral 45 denotes a filter removal notch for facilitating removal from the filter support frame when replacing the filter. 18th
The figure shows how to attach and detach the front cover 4. As shown in FIG. 19, the front cover first part 46 of the front cover 4 is engaged with and fixed to the frame fitting part 35 of the frame 2. 47
The frame concave groove is used to release the hook, but it is also convenient as a carrying handle, as shown in Figure 20. The handle 19 explained in FIG. 2 can be used as shown in FIG. 21. Similarly, the cord hanging explained in FIG. 2 can be used as shown in FIG. 22.

FIG. 17 shows the filter replacement display window 17 of the front cover 4.
Show details. Replace the electret filter with a new one when it becomes dirty to the same degree as the color of the filter replacement guide label written around the window.

The air cleaner according to the present invention has the following effects. 1st
The electret multiplier filter 8 is forced to ventilate fine particles such as L;>, l"sL;>, cigarette smoke, etc. in the air, which can be sucked in and extinguished using electrical and mechanical collection power.Electret The dust filter 8 is disposed inside the removable front cover 4 and can be easily replaced.Secondly, the dirt on the electret dust filter 8 can be removed from the filter replacement display window 17 provided on the front cover 4. It is possible to judge when it is time to replace the dust filter by comparing the color with the color of the filter replacement guide label provided near the replacement display window 17. The color changes due to adhesion of smoke, but this can be done by placing a fruit filter close to the back side of the inlet of the front cover 4.The lattice-shaped inlet of the front cover 4 The shape of the opening 14 is similar to that of the mold, and has a zigzag shape to allow ventilation, but it has the characteristic that the filter surface is difficult to see from the front.

This has the effect of making the display on the filter display window 17 easier to read even if the filter is dirty, since the entire surface can be seen and the user does not feel uncomfortable. Thirdly, by forcing air through the activated carbon filter 9, the ions in the air can be removed by the adsorption power of the activated carbon. Further, even if a large amount of 6;vLr adheres to the electret filter 8 and produces an oxidized odor, it can be removed.

The activated carbon filter 9 has a layered shape in which activated carbon particles are covered with polypropylene fibers, etc., and takes advantage of its bending strength compared to the electret multiplier filter 8 to hold down the electret multiplier filter 8 while attaching the filter to the front cover 4. It can be held on the support frame 44.

The fourth advantage is that the filter has a high collection efficiency, and the circulating air volume and speed are large, in order to be effective as an air purifier. It is important that the blowout flow circulates the indoor air well. From this point of view, a flow that is sucked in from the front and blown out uniformly upward or downward is suitable. In addition, due to the flexibility of installation in a room, it is convenient to be able to use it on a table or on a wall. The present invention has achieved this objective by creating a shape and structure that allows you to select from a single device, from using the main body on a tabletop with an upper balloon, to wall-mounted use by reversing the direction of the main body and converting it to a lower balloon. are doing. Specifically, frame 2,
The shape of the rear cover 3 is approximately symmetrical with respect to the center in the vertical direction. When used on a table, the main body legs 12 are attached, and when used on a wall, the main body hanger is attached with metal fittings 13, etc., so that the structure corresponds to the installation conditions. The front cover 4 has a substantially symmetrical shape with respect to the center in the vertical direction, and the direction in which the front cover 4 is assembled with respect to the frame 2 is reversed, as shown by the engagement structure of the frame claw portion 35 and the front cover first portion 46. However, the front cover 4 can be attached detachably, and a product suitable for use of the front cover 4 can be provided. Regarding the operation of the switch 23, it is also practically convenient that the air volume switching knob 10 is the operation part when used on a tabletop, and the wall-mounted part is used as a display part when used.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to provide an air cleaner that is easy to handle and allows you to easily know when to replace the filter.

[Brief explanation of the drawing]

1. FIG. 1 is a top perspective view of an external appearance showing an embodiment of the present invention, and FIG. 2 is a back perspective view. Third
The figure shows a partially broken pressure surface view, a partially broken side view, and a top view of FIG. 1. FIG. 4 shows an exploded perspective view of the main parts. FIG. 5 shows a front view and a partial side view showing the assembly structure of the rear cover that supports the electric motor, switch, and power cord. FIG. 6 shows a front view, a cross-section AA side view, and a top view of the frame, which is the main component, as seen from the rear side. Fig. 7 is an installation example (B) when the air purifier of the present invention is installed indoors;
(C) is shown. (B) is for tabletop use, and 0 is for wall-mounted use. FIG. 8 is an explanatory perspective view showing how to remove the main body legs from the main body when used on a tabletop, and FIG. 9 is an explanatory view showing how to hang the main body metal fittings on the metal fittings attached to the wall when using the wall hanging. FIG. 10 is a perspective view showing that when assembling the front cover that is detachably fixed to the front side of the main body, the combination direction can be selected depending on whether it is for tabletop use or wall hanging. Examples of use include tabletop use and (g) wall hanging. FIG. 11 is an explanatory diagram of the operation of the air volume switching knob when used on a tabletop, and FIG. 12 is an explanatory diagram of the operation of the air volume switching cord when used on a wall. FIG. 13 shows a top view and a cross-sectional side view of the main body leg used for tabletop use, and FIG. 14 shows a top view of the air volume switching knob and its cross-section FF. 1st
FIG. 5 is an exploded perspective view showing the combined filter and air flow. FIG. 16 shows an explanatory diagram of how to insert the filter into the front cover. Figure 17 is from the front side of the front cover.
An enlarged perspective view of a dirty filter replacement display window provided to let you know when it is time to replace the filter. FIG. 18 is a perspective view illustrating the procedure for removing the front cover from the main body. FIG. 19 shows a sectional view of the pawl retaining portion of FIG. 18. FIG. 20 is an explanatory perspective view showing that the groove on the side of the main body shown in FIG. 19 is used as a handle for carrying. FIG. 21 is an explanatory perspective view showing that the handle provided on the rear cover allows the device to be held with one hand. FIG. 22 is an explanatory perspective view showing that the excess length of the stain source cord can be wrapped around the cord hook provided on the rear cover. ■...Body, 2...Frame, 3...Rear cover,
4...Front cover, 5...Electric motor, 6...Blade, 7
...power cord, 8...electret dust collection filter, 9...activated carbon filter, 10% - air volume switching knob, 11...pull string, 12...body legs,
13...The main body of fried chicken is metal fittings. 14... Grid suction port, 15... Air outlet, 16...
・Elastic material seal, 17... Filter replacement display window, 18... Cord hook, 19... Hand, 20...
- Vibration isolation member, 21... Motor support part, 22... Electric start capacitor, 23... Motor control switch, 24... Shaft part, 25... Lever part, 26... Switch support member, 27... Rear cover cap, 28.
・・Rear cover casing, 29・Protrusion frame portion, 30・
...Guide tube, 31...Frame casing, 32...
・Orifice part, 33...Filter receiving part, 34...
・Frame fixing hole, 35...Frame claw part, 36・
...The main body leg is attached to the rail part, 37...The main body leg claw part,
38...Wall side mounting bracket, 39...Knob part, 40...
...Display panel, 41... Alignment mark, 42... Guide groove section, 43... Peripheral plate section, 44... Filter support frame, 45... Filter removal notch section, 46...
・First part of front cover, 47...7th filter removal part! In figure 1? Figure Mei, /θ figure (ρ) (E) number 12 Figure 113 Figure 75 Figure 117 Figure Mei /15' figure 2θ figure ￥21 figure

Claims (1)

[Claims] 1. In the main body structure, which has an inlet and an outlet, and is combined with a blower for forced circulation inside, a dust filter is arranged so that air flows facing the inside of the front cover inlet,
An air purifier characterized in that a filter replacement display means is provided on the surface of the front cover facing the dust collection filter.