JPH04176316A - Deodorizer - Google Patents

Abstract

PURPOSE:To perform efficient deodorization, to easily and rapidly regenerate a deodorant, to considerably porlong the deodorizer life and to maximize the capacity of the deodorant by switching the current applying direction to an electronic heat-exchange means. CONSTITUTION:An electronic heat-exchange means 2 in which heat is absorbed or released by the current applying direction is provided in a housing 1. Parallel fins 3 are connected to the heat-exchange means 2, and an air passage 1c extending from an air suction port 1a to an air blowoff port 1b is formed between the fins 3. An air-permeable malodor adsorbent 5 (e.g. activated carbon) is placed in the passage 1c. The current applying direction to the heat-exchange means 2 is switched by a current applying direction switching means 72 (e.g. cigar lighter plug). Consequently, deodorization is efficiently performed, the deodorant is easily and rapidly regenerated, the deodorizer life is considerably prolonged, and the capacity of the deodorant is maximized.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a deodorizing device, and particularly to a deodorizing device that has excellent deodorizing performance and can extend the life of an odor absorbing material.

[Prior Art] Traditionally, many odor deodorizing devices for the interior of a vehicle or refrigerator are made by storing granular activated carbon or the like as an odor adsorbent either as is or formed into a filter shape in a case with ventilation holes. Some use forced air circulation with fans.

In addition, Japanese Utility Model Application Publication No. 64-28935 discloses a method in which a deodorizing agent that exhibits a deodorizing effect in the presence of water is applied to cooling fins, and the cooling fins are cooled with an electronic cooling device to eliminate condensed water. An air purifier adapted to supply an odor agent is disclosed.

[Problems to be Solved by the Invention] By the way, as adsorbent materials such as activated carbon are used, their adsorption capacity decreases, so depending on the environment in which they are used, their lifespan is extremely short and it is not easy to regenerate them. Or, in the case of small devices, the entire device is replaced with a new one. Furthermore, although it is known that activated carbon and the like exhibit better adsorption ability when kept at low temperatures, it is rare to use a deodorizing device in a sufficiently low temperature environment.

The present invention solves these problems by making it possible to easily regenerate the deodorizer and greatly extend the life of the device. The purpose is to provide an odor device.

"Means for Solving the Problems" To explain in detail the present invention, the deodorizing device includes a housing 1
(FIGS. 1 and 2) is provided with an electronic heat exchange means 2 whose heat absorption and heat radiation are switched depending on the current direction, and parallel fins 3 connected to the electronic heat exchange means 2. Between the air inlet 1a and the air outlet 1b
An energization switching means 72 for switching the direction of energization to the electronic heat exchange means 2, in which an air-permeable odor absorbing material 5 is arranged.
It has been established.

[Function] In the deodorizing device configured as described above, during deodorization, the energization switching means 72 causes the electronic heat exchange means 2 to be energized to the endothermic side. As a result, the temperature of the fins 3 connected to the heat exchange means 2 is lowered, and the temperature of the odor absorbing material 5 disposed between these fins 3 is also lowered to reduce the odor substances in the air flowing through the air flow path 1c. is efficiently adsorbed and deodorized quickly.

When regenerating the smelly adsorbent 5, the electronic heat exchange means 2 is energized on the heat generating side. As a result, the temperature of the fins 3 and the odor absorbing material 5 disposed between them rises, and the odor substances adsorbed by the fins are dissipated into the clean air flowing through the air flow path 1c and regenerated.

In this way, by switching the direction of electricity to the electronic heat exchange means 2, efficient deodorizing action and simple and quick regeneration can be achieved.

[First Embodiment] Fig. 1 shows a rear perspective view of the deodorizing device with the top lid raised, Fig. 2 shows a longitudinal section of the device, and Fig. 3 shows a rear perspective view of the device with the top lid closed.

The housing 1 of the device is a flat box with an upright front surface (left side in Figure 2) and an inclined rear surface, and has a slit-shaped air inlet 1a and an air outlet 1b on the rear and front surfaces, respectively. is formed. The top surface and the rear surface of the housing 1 form an upper lid 13, which can be rotated upward and opened around the top of the front surface (FIG. 1).

Inside the housing 1, an electronic heat exchanger 2 (details of which will be described later) is disposed in a horizontal position at the center of the upper and lower sides. The fins 3.4 extend inside the housing 1 in the longitudinal direction. Therefore, between the fins 3.4, there is an air suction port 1a.
An air passage 1c leading to the air outlet 1b is formed, and the rotation of a fan 71 provided in the front part of the housing 1 causes the air inlet 1a to flow toward the air outlet 1b as shown by the white arrow in FIG. Air flows through the air channels 1c and 1d.

The structure of the electronic heat exchanger 2 and the upper and lower fins 3.4 is as shown in FIG. 4, and the heat exchanger 2 utilizes the Peltier effect. That is, the fins 3.4 are actually divided into front and rear parts, and P-type and N-type semiconductors are sandwiched alternately on the left and right between the base electrodes of each fin 3.4 to form front and rear blocks. are connected in series at one end side, and current is applied between current-carrying electrodes 73 and 74 at the other end side. However,
If current is applied in the positive direction at this time, the fins 3 are cooled and absorb heat, and the fins 4 are heated and radiate heat. When the current flow is switched in the opposite direction, the heat absorption and heat dissipation of the fins 3.4 are reversed.

The air flow path IC formed between the fins 3 is provided with wire meshes 75 and 76 at the front and rear openings (Fig. 2).
The inside is filled with granular activated carbon 5.

Energization and switching of energization to the fan 71 and the electronic heat exchanger 2 is performed by the energization terminal 14 provided on the front bottom of the housing 1 and the cigarette lighter plug 72 provided in the storage space at the rear of the housing 1. The energizing circuit is shown in FIGS. 5 and 6. Figure 5 shows energized terminal 1
4, for example, when the deodorizing device is set at a predetermined position in the car, the energizing terminal 14 on the housing 1 side
is electrically connected to an energizing terminal (not shown) provided on the vehicle body side, and the fan motor 711 and the electronic heat exchanger 2 are energized in the positive direction from the on-vehicle battery 77. Also, when the deodorizing device is taken out of the vehicle and the cigarette lighter plug 72 is inserted into the cigarette lighter, the fan motor 7
11 and the electronic heat exchanger 2 are energized in the opposite direction.

In the deodorizing device having the above structure, when the deodorizing device is installed at a predetermined position in the vehicle, the electronic heat exchanger 2 is energized in the positive direction as described above, and the fins 3 absorb heat to cool the activated carbon 5. In this state, when the fan 71 rotates, the air containing odor inside the vehicle is introduced from the air suction port 1a into the air flow path IC, and the cooled activated carbon 5 efficiently adsorbs and removes the odor, resulting in clean air. Air is supplied into the vehicle from the air outlet 1b.

When regenerating the activated carbon 5, remove the deodorizing device from the vehicle,
When the cigarette lighter plug 72 is inserted into the cigarette lighter, the fins 3 radiate heat and heat the activated carbon (about 50° C.). Therefore, the fan 71 rotates (in this case, reversely)
The clean air outside the vehicle flows through the air flow path IC from the air outlet 1b.
When introduced into the heated carbon 5, odor substances are more efficiently removed from the heated activated carbon 5, and the activated carbon 5 is quickly regenerated.

As described above, according to the deodorizing device of the present invention, activated carbon can be easily and easily regenerated, so the device life can be greatly extended, and the cooled activated carbon can effectively deodorize. It will be done.

There is a concern that if the temperature of the cooled activated carbon falls below the dew point, water will condense on the activated carbon surface and the adsorption effect will decrease, but many of the malodorous components are water-soluble substances such as lower fatty acids and ammonia, Since the deodorizing effect can be obtained by dissolving in the deodorizing effect, there is no risk that the deodorizing effect will be significantly reduced.

"Second Embodiment" As the odor adsorbent, minerals such as zeolite, porous ceramics, etc. can be used instead of activated carbon.

Further, the carrier may be used with a chemical substance attached thereto so as to neutralize and deodorize odor components. Furthermore, instead of the granular material, as shown in FIG.
1 and provided with a number of vent holes 52 (FIG. 8) throughout may also be used. In this case, as shown in the figure, various odors can be deodorized by arranging adsorbents that target basic, neutral, and acidic odors sequentially from the front to the rear of the sintered block. Replacement can be done easily.

[Third Embodiment] As shown in Fig. 9, outside air and inside air ducts 81, 82 are connected before and after the deodorizing device, and dampers 83, 84 are used to switch the airflow during deodorization and regeneration. For example, there is no need to take the deodorizing device out of the vehicle during regeneration. In this case, the switching of energization to the electronic heat exchanger 2 is performed using a switch or the like.

In the first embodiment, the wire meshes 75 and 76 were provided to prevent the granular activated carbon from spilling out, but the wire meshes may be used instead by forming a part of the housing 1 into a shape that prevents the granular activated carbon from spilling.

The fins 4 forming the air flow path 1d without activated carbon do not need to have the same shape as the fins 3, and may have any shape as long as they can dissipate heat particularly efficiently.

The fan 71 does not need to be an axial fan, and there is no need to provide a fan as long as sufficient airflow can be obtained.

[Effects of the Invention] As described above, according to the deodorizing device of the present invention, a quick deodorizing effect can be obtained, and the odor adsorbent can be easily regenerated, and the life of the device can be significantly extended. .

[Brief explanation of drawings]

1 to 6 show a first embodiment of the present invention.
The figure is a rear perspective view of the device with the top lid open, Figure 2 is a vertical sectional view of the device, Figure 3 is a rear perspective view of the device with the top lid closed, Figure 4 is a perspective view of the main parts of the device, and Figure 5 , FIG. 6 is an electric circuit diagram, FIGS. 7 and 8 show a second embodiment of the present invention, FIG. 7 is a perspective view of an activated carbon block, and FIG. 8 is an enlarged perspective view of section A in FIG. 7. , FIG. 9 is a schematic horizontal sectional view of an apparatus showing a third embodiment of the present invention. 1...Housing 1a...Air inlet 1b...Air outlet 1c...Air flow path 2...Electronic heat exchanger (electronic heat exchange means) 3...
Fin 5...Activated carbon (smell adsorbent) 72...Cigarette lighter plug (energization switching means>'/2 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6\72 Figure 7 Figure 8 Figure 9 Figure C371

Claims (1)

[Claims] An electronic heat exchange means that switches between heat absorption and heat radiation depending on the current direction is provided in the housing, and parallel fins connected to the electronic heat exchange means are provided, and a passage between these fins is provided from the air intake port to the air outlet. A deodorizing device comprising an air flow path, a breathable odor adsorbent disposed in the air flow path, and an energization switching means for switching the direction of energization to the electronic heat exchange means. Device.