JPH0470924B2 - - Google Patents

Description

[Detailed description of the invention] [Field of application of the invention] The present invention is installed indoors, circulates indoor air,
The present invention relates to an air cleaner that cleans indoor air from dirt using air purifying means provided inside the main body.

[Background of the Invention] An air purifier includes a main body having an inlet and an outlet, a filter disposed inside the main body facing the inlet, and a filter installed in the main body to draw air from the inlet through the filter. A forced circulation blower is provided to exhaust air from the outlet.

The air purifier is operated indoors on a table or mounted on a wall, and purifies the indoor air by circulating it through the air purifier.

However, conventional air purifiers of this type ensure high circulation efficiency of indoor air in both cases, either on a table or on a wall.
Furthermore, insufficient consideration has been given to ensuring that operability is not impaired even when the device is mounted on a wall at a high mounting position.

[Purpose of the invention]

Therefore, an object of the present invention is to propose an air purifier that ensures high indoor air circulation efficiency when used either on a table or on a wall, and does not reduce operability even when used as a wall-mounted device, which requires installation at a higher position. It's about doing.

[Summary of the invention]

The present invention comprises a rectangular frame having an air outlet on the side and a forced circulation blower installed therein, a front cover having an inlet and detachably assembled to the flume, and a front cover that faces the inside of the inlet of the front cover. and an operating means for setting operating conditions of the blower, the indoor air sucked by the blower from the suction port is purified by the filter, and the air is blown into the room from the blowout port. In the purifier, the air outlet and the operating means are arranged on one side of the frame separately on the left and right sides, and the one side can be selectively used for tabletop use with the side facing upward, or wall-mounted with the side facing downward. The front cover and filter are sized so that almost the entire front surface of the frame is used as an inlet, so that when used on a tabletop, the side where the outlet and the operating means are arranged can be placed upward. If you install the air purifier on a tabletop near a wall, you can suck clean air through the large front cover suction port with low air resistance and the filter, and blow clean air upward to circulate it along the wall. When in use, if you install the air purifier on a wall with the side where the air outlet and operating means are located facing downward, clean air will be sucked in through the large front cover suction port with low air resistance and the filter, and clean air will be drawn in along the wall. It is characterized in that the air can be blown downward so as to circulate at the same time, and that the operating conditions can be easily set using the operating means located on the lower surface.

[Embodiments of the invention]

One embodiment of 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, and a front cover 4. An electric motor, a blade 6, a power cord 7, a smoke collecting electret filter 8, and a removing activated carbon filter 9 are incorporated into the main body. Reference numerals 10 and 11 are 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,
Reference numeral 13 denotes a main body hanging metal fitting when used for wall hanging.
The rotation of the electric motor 5 causes the blades 6 to rotate, and indoor air is sucked through the lattice-shaped suction port 14 of the front cover 4, passes through the electret filter 8 and the activated carbon filter 9, and is circulated indoors through the air outlet 15 of the frame 2. be done. Reference numeral 16 denotes an elastic seal provided to prevent air from entering around the filter. 17 is a filter replacement display window 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.
Reference numeral 19 is a handle that can be held with one hand when moving the main body. In FIG. 4, reference numeral 20 denotes a vibration isolating member that supports the electric motor 5 on the motor support portion 21 of the rear cover 3 in an anti-vibration manner. 22 is a capacitor for starting the motor, 23
is the motor control switch. The air volume switching knob 10 is attached to the shaft portion 24, and the drawstring 11 is attached to the lever portion 25.
The air volume switching knob 10 or the pull string 11 can be selectively operated. 26
is a switch support member that fixes the switch 23 to the rear cover 3. 27 is a rear cover cap. 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 disposed within the protruding frame portion 29 together with the motor support portion 21 . Reference numeral 18a indicates the shape of the back side of the cord hook 18, which is arranged on the outside of the rear cover casing 28 at the three corners of the rear cover to prevent air from flowing in through the opening for forming the cord hook 18. . 30 is a guide tube for the drawstring 11. 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 blade 6, and 33 a filter receiving portion for preventing deformation of the filters 8 and 9. 34 is a frame fixing hole for assembling the frame 2 to the rear cover 3. 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. 36 is the main body leg 12
This is the main body leg mounting rail part that is detachably fixed by sliding. FIG. 7 shows an example of how the main body 1 is installed, with B indicating use on a table and C indicating use on a wall. B is more suitable for indoor air circulation during cooling, and C is more suitable for indoor air circulation during heating. FIG. 8 shows a method for removing the main body leg pawl portion 37 of the main body leg 12 from the main body leg mounting rail portion 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. FIG. 9 shows how to hang the main body hanging bracket 13 on the wall side mounting bracket 38. In FIG. 10, D is for tabletop use, and E is for wall-mounted use, and the combination orientation of the front cover 4 with respect to the frame 2 is different. The legs 12 of the main body are used only when used on a tabletop. Drawstring 11
is what is used when wall-mounted. FIG. 11 is a diagram showing the operation procedure of the air volume switching knob 10. Turn the knob part 39 with your finger,
The display of "Off", "Strong", "Medium", and "Weak" is adjusted to match the alignment mark 41 written on frame 2. 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 guide groove portion 42 which is slidably engaged with the main body leg pawl portion 37 of the main body leg 12 and the main body leg mounting rail portion 36 of the frame 2 are clarified. In FIG. 14, the shape of the peripheral plate part 42 of the knob part 39 of the air volume switching knob 10 is a seesaw shape, with one side being a raised front plate part 42a and the other side being a front lowering plate part 42b. This has an effect similar to a snail shape with respect to the rotation of the knob part 39, and although the grip part 39 can be rotated clockwise, the structure is such that the fingers cannot easily slip due to the inclination of the plate part 42 when rotating the knob part 39 to the left. The switch 23 used in this embodiment is of both a rotary and a bull type, and by adding protection against one-way rotation in this way, damage to the switch can be prevented. FIG. 15 shows that the indoor air sucked through the front cover 4 first flows to the electret filter 8 and then to the activated carbon filter 9. The electret 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 electrostatic collection effect in addition to mechanical collection, and has the effect of collecting even extremely 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, when assembled, the electret filter 8 and activated carbon filter 9 are placed in the filter support frame 44 of the front cover 4 in the stacked order. Reference numeral 45 denotes a filter removal notch for facilitating removal from the filter support frame when the filter is inserted. FIG. 18 shows how to attach and detach the front cover 4.
As shown in FIG. 19, the front cover pawl portion 46 of the front cover 4 is engaged with and fixed to the frame pawl portion 35 of the frame 2. 47 is a frame concave groove for disengaging the pawl part, but the second
As shown in Figure 0, it is also convenient as a handle for carrying. 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. 17th
The figure shows the filter replacement display window 17 of the front cover 4.
Show details. Replace the electric filter with a new one when it becomes dirty to the same extent 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. First, the electric filter 8 is forced to ventilate, and fine dust, dirt, cigarette smoke, etc. in the air are sucked in and purified using electric and mechanical collection forces. can. electret filter 8
is disposed within the removable front cover 4 and can be easily replaced. Second, the dirt on the electric filter 8 can be seen through the filter replacement display window 17 provided on the front cover 4, and the color of the filter replacement guide label provided near the replacement display window 17 can be seen. By comparing, it is possible to judge when to replace the filter. The shape of the lattice-like suction port 14 of the front cover 4 has a zigzag shape for ventilation due to the same shape of the mold, but the filter surface is difficult to see from the front.
This has the effect that even if the filter becomes dirty, the entire surface can be seen and there is no discomfort, and the display on the filter display window 17 is easy to understand. Third
Furthermore, by forcing air through the activated carbon filter 9, odors in the air can be removed by the adsorption power of the activated carbon. In addition, electret filter 8
can remove a large amount of dust and oxidation odor from it.

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 filter 8 to hold the electret filter 8 while attaching it to the filter support frame 44 of the front cover 4. can be held. 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 can be used on a table or hung on a wall, and it would be convenient to be able to accommodate both. The present invention achieves this purpose by
As a method that can be selected with one device, the main body has a shape and structure that can be used on a table with the upper balloon, or when used on a wall, the orientation of the main body can be reversed and converted to a lower balloon. Specifically, the shapes of the frame 2 and the rear cover 3 are approximately symmetrical with respect to the center in the vertical direction. When using on a tabletop, the main body legs 12
, when using wall hanging, main body hanging bracket 1
The structure shall be compatible with the installation conditions such as the attachment of item 3. The front cover 4 has a substantially symmetrical shape with respect to the center in the vertical direction, and as shown by the engagement structure of the frame claw portion 35 and the front cover claw portion 46, the frame 2
On the other hand, even if the direction of the front cover 4 is reversed, the front cover 4 can be detachably attached, and a product suitable for use of the front cover 4 can be provided. Regarding the operation of the switch 23, the air volume switching knob 10
It is a practical operation unit when used on a table, and also serves as a display unit when used on a wall.

〔Effect of the invention〕

As described above, the present invention installs the air outlet and the operating means separately on one side of the side, and selectively enables table-top use with the side facing upward and wall-mounting with the side facing downward. The front cover and filter are sized so that the air inlet occupies almost the entire front surface of the frame, so that when used on a tabletop, the side surface where the air outlet and operating means are arranged is placed upward. If you install the air purifier on a tabletop near a wall, you can draw clean air through the front cover suction port and filter, which has a large and low air resistance, and blow clean air upward to circulate it along the wall. If you install the air purifier on the wall with the side where the air outlet and operating means are located facing downward, clean air will be sucked in through the front cover suction port and filter, which has a large and low air resistance, and will flow clean air to the wall. The air can be blown downward in a manner that it is circulated along the air, and when it is mounted on a wall and installed at a high position, the operating conditions can be easily set using the operating means located on the lower surface.

[Brief explanation of the drawing]

FIG. 1 is a front perspective view of an external appearance showing an embodiment of the present invention, and FIG. 2 is a back perspective view. FIG. 3 shows a partially cutaway front view, a partially cutaway side view, and a top view of FIG. FIG. 4 shows an exploded perspective view of the main parts. FIG. 5 shows a front view and a partially sectional side view showing the assembly structure of the rear cover that supports the electric motor, switch, and power cord. Figure 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 shows installation examples B and C in which the air cleaner of the present invention is installed indoors. B
C is for tabletop use, and C is for wall-mounted use. 8th
The figure 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 used on a wall. 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 direction of assembly is selected depending on whether it is to be used on a tabletop or when it is mounted on a wall; D is for tabletop use; E is for tabletop use; is an example of wall-mounted use. Figure 11 is an explanatory diagram of the operation of the air volume switching knob when used on a tabletop, Figure 12
The figure 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 unit legs used for tabletop use, and Fig. 14 shows a top view of the air volume switching knob and its cross-section FF.
FIG. 15 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. FIG. 17 is an enlarged perspective view of a dirt filter replacement display window, which is provided to know when to replace the filter, viewed from the front side of the front cover. 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 engaging 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 power cord can be wrapped around the cord hook provided on the rear cover. 1...Body, 2...Frame, 3...Rear cover, 4...Front cover, 5...Electric motor, 6...Blade, 7...Power cord, 8...Electric filter, 9...Activated carbon filter , 10... Air volume switching knob, 11... Drawstring, 12... Body leg, 13... Body leg hook, 14... Grid suction port, 15... Air outlet, 16... Elastic material seal, 17 ...Filter replacement display window section, 18...
... Cord hook, 19 ... Handle, 20 ... Vibration isolating member, 21 ... Motor support section, 22 ... Motor starting 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, 3
0... Guide tube, 31... Frame casing, 3
2... Orifice part, 33... Filter receiving part,
34...Frame fixing hole, 35...Frame claw part, 36...Body leg mounting rail part, 37...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, 46 ... Front cover pawl, 47 ...
Filter replacement guide label.

Claims (1)

[Scope of Claims] 1. A rectangular frame having an air outlet on its side and containing a forced circulation blower, a front cover having a suction port and detachably assembled to the flume, and the inside of the suction port of the front cover. and an operating means for setting the operating conditions of the blower, the indoor air sucked from the suction port by the blower is purified by the filter, and the indoor air is discharged from the blow-off port into the room. In the air purifier, the frame has the air outlet and the operating means separated into left and right sides on one side of the frame, and can be selectively used for tabletop use with the side facing upward or wall-mounted with the side facing downward. 1. An air purifier, comprising: an installation means that enables the air purifier to be installed, and the front cover and the filter are configured to have a size such that substantially the entire front surface of the frame serves as an inlet.