JPS63205115A - Air cleaner - Google Patents

Abstract

PURPOSE:To prevent generation of fine powder of an activated charcoal by constituting the deodorizing part of an air cleaner consisting of a dust removing part and a deodorizing part with a mixture of activated charcoal and a fibrous element. CONSTITUTION:In an air passage of an air cleaner, a filter block 16 capable of dust removing and deodorization is provided. In the filter block 16, a wavy filter for dust removal 32 bent in zigzag form is arranged in a protective casing 36. On one side of the filter for dust removal 32, a deodorizing part 21 in which activated charcoal 33 and fiber 32 split like cotton are mixed is provided. The deodorizing part 21 is covered with a protective material 35, and is held between the filter for dust removal 32 and the protective material 35. Consequently, the activated charcoal 21 does not move by vibration, and the pieces of the charcoal do not rub each other into powder, which is not scattered to the outside, because the deodorizing part 21 is a mixture of activated charcoal and a fibrous element.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an air purifier used for home use, vehicle installation, etc.

[Background technology]

BACKGROUND ART Air purifiers using activated carbon as an air purifying member that adsorbs odors and toxic gases in the air are known. However, in such air purifiers, when the filter containing activated carbon is handled or when it is mounted on a vehicle, the activated carbon rubs against each other due to vibration and wears out, and the resulting activated carbon powder is released to the outside. It had the disadvantage of scattering.

For this reason, the activated carbon fine powder has caused problems in handling the air purifier and caused clogging of other air source application members.

Therefore, the following air purifier was developed by Special Publication Publication No. 52-419.
It is disclosed in Publication No. 05. That is, an air source applicable fiber layer is arranged on both sides of the surface of an air purifying member such as activated carbon, and a pressing means such as a leaf spring is provided which acts to press the air purifying member via this air source applicable fiber layer. This is an air purifier that eliminates uneven distribution of air purifying members due to vibration and prevents wear of the air purifying members due to vibration. However, since this air purifier is provided with a pressing means, the number of parts increases, the number of man-hours for assembly increases, the structure becomes complicated, and the cost becomes high.

[Purpose of the invention]

This invention was made in view of these circumstances, and there is little risk of generation of activated carbon fine powder, and
The aim is to provide a low-cost air purifier.

[Disclosure of the invention]

In order to achieve the above object, the present invention includes an air passage and a blowing means for forcing air to pass through the air passage, and the air passage is provided with a means for removing dust from the air passed through the air passage. An air purifier is provided with a dust removing part and a deodorizing part for deodorizing, the deodorizing part being made of a mixture of activated carbon and fibrous material. It is said that

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

Figures 1 to 3 show one of the air purifiers according to the present invention.
Hail examples. As shown in the figure, this air purifier includes a main body case 1 made of resin. A suction port 2 is provided on the front surface of the main body case 1 over the entire length. A top plate 3 is provided on the upper surface of the main body case 1 and is inclined so that the front side is lower. This top plate 3 serves as an operation panel, and has a push button IO9 of a switch 9, and a knob 1 of a pull string (not shown) that is linked to this push button IO.
1. A timer 121 and an energizing lamp 13 are provided, respectively. Further, a part is provided with an air outlet 4, and a frame 5 having an air outlet grid 5a at the opening thereof is removably fitted into the air outlet 4. A small opening is provided on one side of the frame 5, and an aromatic case 7 containing an aromatic agent is placed in this opening. A grill plate 8 is provided on the front of the main body case 1 so as to cover the suction port 2.
is provided. On the back of the main case L, there is a hanging tool 1.
5 is provided. When this air purifier is installed by hanging, the top and bottom in the figure are turned upside down, and in this state, the hanging tool 15 is attached to a receiving metal fitting (not shown) provided on a wall surface, etc. It is designed so that it can be hooked to. Inside the main body case l, a fan casing 6 is provided at the rear, and a filter block storage chamber 14 is provided at the front. The fan casing 6 is the main body case 1
Peripheral wall portion 191 provided integrally with rear wall 1 of main body case 1
a and a partition plate 30. Middle partition plate 30
is provided with a bell-mouth-shaped fan suction port 30a. The fan suction port 30a opens toward the suction port 2, and is provided with a fan suction port grid 31 that prevents fingers or the like from being inserted into the fan casing 6. Inside the fan casing 6, a motor 20 and a fan 18 constituting air blowing means are provided. The motor 20 is fixed to the main body case 1, and the fan 18 is connected to the motor 2.
It is fixed to the output shaft of 0. The air sucked from the suction port 2 by the fan 18 is transferred to the filter block storage chamber 1.
4 and exits from the air outlet 4 through an air passage R passing through the fan casing 6. The switch 9 starts and stops the motor 20, the timer 12 sets the rotation time of the motor 20, and the energizing lamp 13 indicates whether or not the motor is energized by emitting light. The filter block storage chamber 14 has a peripheral wall 1b of the main body case serving as an outer wall.
It is surrounded by a double peripheral wall portion including an inner wall 30b and a partition plate 30 serving as a bottom wall. The inner wall 30b of the filter block accommodating chamber 14 is integrated with the partition plate 30, and the filter block 16 is fitted therein. The filter block 16 is located in the filter block storage chamber 14
A protrusion (rib) 30C is provided on the front surface of the partition plate 30 so that the filter block 16 does not completely block the fan suction port 30a when the filter block 16 is fitted into the filter block 30. A grill plate 8 is attached to the front end of the peripheral wall 1b. To attach the grill plate 8, the locking protrusion 39 provided at the upper end of the grill plate 8 is hooked into the locking recess 40 provided in the main body case 1, and the lower end of the grill plate 8 is attached to the main body case l with screws 41. This is done by being stopped. In the filter block 16, as shown in FIG. 4, a wave-shaped dust removal filter 32 bent in a zigzag shape is arranged within a frame-shaped protector 36. The protector 36 is made of paper, nonwoven fabric, or the like. As the dust removal filter 32, a breathable material such as nonwoven fabric is used. Activated carbon 3 is placed on one side of the dust removal filter 32.
A deodorizing section (deodorizing member) 21 is disposed in which a mixture of fibers 34 and fibers 34 opened into a cotton shape are mixed. As the fibers to be mixed with activated carbon, synthetic fibers such as polyester and rayon are preferably used. This is because such synthetic fibers have a small diameter and are easily entangled in a cotton-like manner. Further, when a liquid deodorizer (deodorant) or the like is retained, the retention property is excellent. However, natural fibers may also be used.

This deodorizing section 21 is covered with a holding material 35 and is held between the dust removal filter 32 and the holding material 35. Holding material 3
5 is made of a breathable material such as filter paper or nonwoven fabric;
Both sides of the dust removal filter 32 and the tip portions of the curved portions (peak portions and bottom portions) are fixed by thermal welding, adhesive bonding, or the like. It should be noted that since it is originally difficult for air to pass through the tip of the curved part of the dustproof filter 32, the pressure loss of the air blown by the air blowing means does not particularly increase due to welding, adhesion, etc. to the holding material 35. The protector 36 includes a dust removal filter 32 and a holding material 3.
5 is fixed with resin adhesive or the like. Protector 3
On both sides of 6, there is a protrusion (long end) 36a that protrudes forward.
is provided, and when the filter block 16 is installed in the filter block storage chamber 14 and the grill plate 8 is fixed to the front surface of the main body cover 1, the front end of the protrusion 36a abuts the grill plate 8 and the filter block 1'' 6 positioning is performed. When replacing the filter block 16, it is preferable to pinch this protrusion 36a and pull it out. A pre-filter 17 is arranged on the front surface of the filter block 16.
and the dust removal filter 32 constitute a dust removal section. The pre-filter 17 removes relatively large dust such as wire rings, and the dust removal filter 32 removes fine dust (particulate dust) such as cigarette smoke.

In this air purifier, when the switch 9 is turned on, the motor 20 rotates and the fan 18 rotates.

Then, dirty air passes through the grill plate 8, is sucked in from the suction port 2, and passes through the pre-filter 17 and filter block 16. Large dust particles are removed by the pre-filter 17, fine dust particles are removed by the dust removal filter 32, and then deodorized by the deodorization section 21. The clean air that has passed through the filter block 16 is sucked into the fan casing 6 and then blown out from the air outlet 4 by the daily rotation (centrifugal force) of the fan.

This air purifier is equipped with a deodorizing section that contains a mixture of activated carbon and fibers, so the activated carbon does not move due to vibrations, etc., and the activated carbon rubs against each other and wears out, resulting in fine activated carbon powder. There is no chance of it being scattered outside. Moreover, since there is no need to provide a pressing means or the like, the number of man-hours required for assembling three parts does not increase, and the structure does not become complicated and the cost does not become high.

In addition, in the above embodiment, along the wave-shaped dust removal filter,
Although the deodorizing section is provided in a corrugated shape, it does not necessarily have to be this way, and may be provided in a planar shape by sandwiching the deodorizing section between a planar dustproof filter and a planar holding material. It may be. However, if the activated carbon is provided in a corrugated manner, the contact area of the activated carbon with the air becomes larger, resulting in a greater deodorizing effect. The activated carbon or fiber body of the deodorizing section may be impregnated with a liquid deodorizing agent (deodorizing agent). Then, when the air passes through the deodorizing section, the deodorizing agent also removes foreign odors in the air. This deodorizer chemically decomposes ammonia, fish, and other rotten odors that cannot be deodorized with activated carbon.
It is preferable to use a neutralizing agent because the deodorizing effect can be further improved. Such deodorizing agents include, for example, extract components extracted from thorn, lilac, Chinese forsythia, holly osmanthus, Chinese trumpet, Japanese butterbur, Japanese japonica, Japanese japonica, mountain mustard, asparagus, and the like. The liquid deodorizer may be impregnated into an impregnating member such as foamed polyurethane and provided separately from the mixture of activated carbon and fibers in the deodorizing section, but if it is provided integrally, the structure of the air purifier will be affected. becomes simple. If a filter block equipped with a dust removal filter and a deodorizing section is used as in the above embodiment, dust removal and deodorization can be performed with one filter block, so it is not necessary to replace the dust removal section and the deodorization section. becomes simple and easy to handle.

Another example of the filter block is one having the structure shown in FIG. This filter block 45
A dust removal filter 43 bent in a zigzag manner is arranged at the front part of a frame-shaped protector 42 made of paper, nonwoven fabric, etc., and a deodorizing section (deodorizing body) 44 is arranged at the rear part. The dust removal filter 43 is fixed to the protector 42 with a resin adhesive or the like. As shown in the sixth unevenness, the deodorizing section 44 is composed of a holding body 37. which has protrusions 37a and 38a on all sides.
Between 38 and 38, activated carbon 33 and a fiber body 34 opened into cotton
The protrusions 37a and 38a of both holders 37 and 38 are fixed to each other with adhesive or the like.

That is, a mixture of activated carbon 33 and fibrous body 34 is housed in a bag-like body made of both holders 37 and 38.

The holders 37 and 38 are made of a breathable material such as nonwoven fabric or filter paper. The deodorizing part 44 is fixed to the protector 42 by bending the protruding parts (fixed parts) 37a and 38a of both holders 37 and 38 with adhesive or the like.

〔Effect of the invention〕

An air purifier according to the present invention includes an air passage and a blowing means for forcing air through the air passage, and the air passage includes:
This air purifier is equipped with a dust removal section that removes dust from the air passed through the air purifier, and a deodorization section that deodorizes the air, the deodorization section being made of a mixture of activated carbon and fibrous material. Therefore, there is little risk of generation of activated carbon fine powder, and the cost is low.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the air purifier according to the present invention, Fig. 2 is a longitudinal sectional view of the embodiment, Fig. 3 is an exploded perspective view of the embodiment, and Fig. 4 is the embodiment. FIG. 5 is a cross-sectional view of the filter block in another embodiment of the air purifier according to the present invention, and FIG. FIG. 6 is a structural explanatory diagram of the deodorizing section of the same filter block. 17... Prefilter 18... Fan 20...
・Motor 21, 44... Deodorizing section 32, 43...
Dust removal filter 33...Activated carbon 34...Fiber
R...Airway agent Patent attorney Takehiko Matsumoto Figure 1 Figure 2 ρ Figure 4x Figure 6 4 minutes

Claims (5)

[Claims] (1) A ventilation passage and a blowing means for forcibly passing air through the ventilation passage are provided, and the ventilation passage includes a dust removal section that removes dust from the air passed through the ventilation passage, and a deodorization section that deodorizes the air. 1. An air purifier, characterized in that the deodorizing section is made of a mixture of activated carbon and fibrous material. (2) The air purifier according to claim 1, wherein the dust removal section includes a wave-shaped dust removal filter, and the deodorization section is held on one side of the dust removal section. (3) The air purifier according to claim 1 or 2, wherein the deodorizing section is sandwiched between a dust removal filter provided in the dust removal section and a breathable holder. (4) The air purifier according to any one of claims 1 to 3, wherein the deodorizing part is formed by mixing activated carbon and a fibrous body in a bag-like body made of a breathable material. . (5) Claim 1 in which the deodorizing section also contains a deodorizing agent that deodorizes odors that cannot be removed with activated carbon.
The air purifier according to any one of paragraphs to paragraphs 4 to 4.