JPH11290443A - Deodorizing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent odor generated in heating deodorizing agent for regeneration. SOLUTION: An inlet valve 6 and an outlet valve 12 are provided in a main ventilation passage 5 to communicate an intake port 2 and a discharge port 3 with each other. As a blow fan 7 is rotated in deodorizing operation, the valves 6 and 12 are opened to send air to the ventilation passage 5. In heat- regenerating operation of deodorizing agent 10, the blow fan 7 is stopped, the valves 6 and 12 are closed, and deodorizing agent 10 is sealed in a space in the ventilation passage 5. As deodorizing agent 10 is heated by a magnetron 17, odor components are removed from deodorizing agent 10 in an initial stage of heating without leaking outside, and as heating is continued till oxidation decomposition of the odor components becomes dominant, an odor level is lowered. Regeneration of the deodorizing agent 10 can thus be conducted without leaking odor outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing apparatus using a deodorizing material which can be regenerated by heating.

[0002]

2. Description of the Related Art In addition to being used as a single unit, a deodorizer is often used as an air washer in combination with a dust collector or the like, and further incorporated into a cooling machine or a heating machine. As a deodorizing device, a device using a deodorizing material that adsorbs odor components such as activated carbon is the most common. However, if the adsorption of the odor components is saturated, the effect of removing the odor is lost.

On the other hand, various odor components adsorbed on the deodorizing material by heating the deodorizing material by using a deodorizing material obtained by mixing an adsorbent such as zeolite and an oxidation catalyst (this is called "adsorbate") Oxidative decomposition of odorless components to remove them from deodorants (Japanese Patent Application Laid-Open No.
227420). According to this, since the deodorizing material can be reused repeatedly, there is an advantage that it is not necessary to replace the deodorizing material.

[0004]

However, in such oxidative decomposition of odor components, at a relatively low temperature in the early stage of heating, desorption of the adsorbate from the deodorizing material is more dominant than decomposition of the adsorbate by oxidative decomposition. Therefore, there is a problem that odor is generated.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a deodorizing apparatus which prevents generation of odor at the time of heating and regenerating a deodorizing material.

[0006]

Means for Solving the Problems A first deodorizing apparatus according to the present invention, which has been made to solve the above problems, comprises: a) a ventilation path connecting an intake port and an exhaust port; and b) the ventilation path. A) a deodorizing material disposed within; c) a heating means for heating the deodorizing material; d) a blowing means for blowing air into the ventilation path; and e) the upstream and downstream sides of the deodorizing material. A first and a second valve capable of closing a ventilation path, and during the deodorizing operation, the first and second valves are opened to allow air to flow through the ventilation path by the ventilation means,
During the regeneration treatment of the deodorizing material, the deodorizing material is heated by the heating means, and the first and second valves are closed to isolate the deodorizing material from the outside of the ventilation path.

[0007] The second deodorizing device according to the present invention comprises the first deodorizing device.
In the deodorizing device, the first and second valves include a valve stop formed on an inner wall of the ventilation path, and a valve plate urged in a valve stop direction by an elastic member such as a spring. When blowing by the blowing means stops, the valve plate abuts against the valve stop by the biasing force of the elastic member to close the ventilation path, and when blowing is performed, a force is applied to the valve plate in a direction opposite to the biasing direction. It is characterized by opening the ventilation path.

[0008] A third deodorizing device according to the present invention is the first or second deodorizing device, wherein the first and second deodorizing devices are different from each other.
Is provided with an odor detecting means in the ventilation path closed by the valve.

A fourth deodorizing apparatus according to the present invention comprises: a) a ventilation path connecting an intake port provided below and an exhaust port provided above, and b) disposed in the ventilation path. Deodorizing material, c) heating means for heating the deodorizing material, d) blowing means for selectively blowing upward or downward in the ventilation path, e) from the air inlet during the deodorizing operation. Control means for controlling air blowing means to circulate air upward toward an exhaust port and to blow air gently downward during regeneration processing of the deodorizing material.

In a fifth deodorizing apparatus according to the present invention, in the fourth deodorizing apparatus, a first odor detecting means is provided in a ventilation path from the intake port to the deodorizing material; A second odor detecting means is provided in a ventilation path to the deodorizing material, and the control means controls the blowing means based on detection signals of the first and second odor detecting means. .

A sixth deodorizing apparatus according to the present invention is characterized in that in any one of the first to fifth deodorizing apparatuses, a temperature detecting means is provided in close contact with or near the deodorizing material. I have.

In a seventh deodorizing apparatus according to the present invention, in the sixth deodorizing apparatus, the heating means includes a magnetron, and the deodorizing material prevents leakage of microwaves generated from the magnetron and prevents air from leaking. The flow is disposed in a cavity formed to pass therethrough.

An eighth deodorizing apparatus according to the present invention is the above-mentioned seventh deodorizing apparatus, wherein the temperature detecting means is a microwave shielding member which is a hollow body continuous from the cavity to the deodorizing material; And a temperature sensor inserted into the shielding member.

According to a ninth deodorizing device of the present invention, in any one of the first to eighth deodorizing devices, a pressure absorbing portion having a variable volume is provided in a space in a ventilation path near the deodorizing material. It is characterized by.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment According to the Present Invention
In the deodorizing apparatus, during the deodorizing operation, the first and second valves are opened, and the outside air sucked from the air inlet by the blowing means is discharged to the outside from the air outlet after passing through the deodorizing material. Since the odor component contained in the sucked outside air is adsorbed by the deodorizing material, the air from which the odor is removed can be obtained from the exhaust port. On the other hand, during the heating and regeneration operation of the deodorizing material, the ventilation passages are closed by the first and second valves, respectively, and the deodorizing material is sealed in the space inside the ventilation passage and cut off from the air outside the ventilation passage. In the initial stage of heating, desorption is more dominant than oxidative decomposition of the adsorbate (odor component) in the deodorizing material, so the odor component is released as it is, but is isolated from the outside air as described above. Therefore, the odor component remains near the deodorizing material. And when the temperature of the deodorizing material rises and oxidative decomposition becomes more dominant than desorption, the odor component is reduced by the decomposition,
Eventually, the odor components are almost completely decomposed.

As described above, in the first deodorizing apparatus according to the present invention, the ventilation passage containing the deodorizing material is closed at the time of heating for regenerating the deodorizing material. Leakage can be prevented and generation of offensive odor can be prevented.

In the deodorizing apparatus according to the present invention, the first and second valves are opened only if the blowing means is driven during the deodorizing operation, and the driving of the blowing means is stopped during the heating and regeneration operation of the deodorizing material. As long as the first and second valves are closed. For this reason, there is no need to directly or electrically control the opening and closing operations of the first and second valves, and the configuration can be simple and inexpensive.

In the third deodorizing device according to the present invention,
Based on the odor level detected by the odor detection means,
The heating regeneration operation can be continued until the odor level of the air in the enclosed space is sufficiently reduced. Therefore, the deodorizing material can be reliably regenerated.

Further, in the fourth deodorizing apparatus according to the present invention,
The air flow containing the odor component that rises in the direction of the exhaust port in the ventilation path due to being heated is pushed back downward by the blowing by the blowing means, so that the air containing the odor component is near a predetermined range in the ventilation path. Stop. According to this configuration, since a member such as a valve for physically closing the ventilation path is not required, the cost can be further reduced.

In this configuration, if the force for pushing back the air containing the odor component is too strong (that is, the air volume is too large),
Backflow air leaks out of the air inlet. Conversely, if the force for pushing back the air containing the odor component is too weak (that is, the air volume is too small), the air containing the odor component leaks from the exhaust port.
Therefore, in the fifth deodorizing device according to the present invention, when the odor level detected by the first odor detecting means on the intake port side exceeds the odor level detected by the second odor detecting means, the air flows backward. Therefore, the driving of the blowing means is weakened to reduce the air volume. Conversely, when the odor level of the second odor detecting means on the exhaust port side is higher than the odor level of the first odor detecting means, the driving of the blowing means is increased to increase the air volume. Thereby, air can be reliably retained near the deodorizing material.

In the sixth deodorizing apparatus according to the present invention,
The heating means can be controlled based on the temperature detected by the temperature detecting means so as to maintain the temperature suitable for heating and regeneration of the deodorizing material. Therefore, the regeneration of the deodorizing material can be efficiently and sufficiently performed, and the abnormal heating of the deodorizing material can be avoided.

Further, in the seventh deodorizing apparatus according to the present invention,
Since the deodorizing material is microwave-heated by a magnetron disposed separately, there is no need to provide a heating wire or the like in contact with the deodorizing material, and there are few failures such as disconnection. Furthermore, in the eighth deodorizing apparatus according to the present invention, a temperature sensor (for example, a thermocouple)
Microwaves leaking out of the cavity through the cavity can be minimized.

In the ninth deodorizing device according to the present invention,
Because the pressure absorbing portion absorbs the pressure of the air whose volume has been heated and expanded, for example, the closed valve may be opened by the pressure, or the air in the ventilation passage may be inflated regardless of the control of the ventilation. It can be prevented from flowing out of the exhaust port.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing the appearance of the deodorizing apparatus of the present embodiment, FIG.
FIG. 3 is an operation state diagram at the time of the deodorizing operation, and FIG. 4 is a flowchart showing the control at the time of the heating and regenerating operation of the deodorizing material.

In FIG. 1, an intake port 2 is provided at a lower portion of the front surface of a housing 1. External air sucked from the intake port 2 is internally deodorized and discharged from an exhaust port 3 on the upper surface.
An operation panel 4 provided with an operation switch and a display lamp is provided on an upper part of the front surface of the housing 1. You can check the operation.

The internal configuration of the deodorizing device will be described with reference to FIG. In this deodorizing device, a blower fan 7 driven to rotate by a fan motor 8 from the intake port 2 side to the exhaust port 3 side is provided inside a ventilation path 5 connecting the intake port 2 and the exhaust port 3. An inlet valve 6, a cavity 9 containing a deodorizing material 10, a sterilization filter 11, and an outlet valve 12 are provided. A pressure absorbing portion 13 formed of a bellows body is formed on a side wall between the cavity 9 and the outlet valve 12 so as to protrude.

A magnetron 17 is provided on the side wall of the cavity 9 as a heating means. The cavity 9 has a partition made of a metal plate having a large number of holes of a predetermined diameter so that microwaves do not leak from the inside. I have. For this, those generally used in microwave ovens and the like can be used. A thermocouple 15 that is microwave-shielded by a metal cylinder 16 from the outside of the cavity 9 is inserted into the deodorizing material 10 so that the temperature of the deodorizing material 10 can be monitored. Further, an odor sensor 18 is mounted above the cavity 9 in the ventilation path 5.
Are input to the control unit 14 together with the detection signal of the thermocouple 15.

As shown in FIG. 2, the inlet valve 6 and the outlet valve 12 each include two valve plates that share a shaft fixed to the side wall of the ventilation passage 5, and the valve plates are wound around the shaft. It is biased by a spring (not shown), and is closed by being pressed against a valve stop formed in the ventilation path 5.

The control unit 14 includes a control circuit including a microcomputer and a drive circuit for the fan motor 8 and the magnetron 17.
8, and controls the operation of the magnetron 17 and the blower fan 7 according to a predetermined processing procedure described later.

The deodorizing material 10 is formed, for example, by molding a base such as a metal oxide which absorbs microwaves and generates heat so that air flows through the base, such as a honeycomb, and adsorbents such as zeolite and oxidizing platinum or the like. The mixture of the catalyst and the catalyst is supported on the substrate.

First, the operation of the deodorizing apparatus having the above configuration during the deodorizing operation will be described with reference to FIG. When the blower fan 7 is rotated in a predetermined rotation direction by the control of the controller 14, the outside air sucked from the intake port 2 is sent upward through the ventilation path 5, and the inlet pressure is butterflyed by the wind pressure to open. I do. After passing through the deodorizing material 10 and the sterilization filter 11, the outside air pushes open the outlet valve 12 and is discharged from the exhaust port 3. Odor components contained in the outside air are adsorbed by the deodorizing material 10,
Further, since fine suspended matters and the like are captured by the sterilization filter 11, clean air from which odor has been removed is discharged from the exhaust port 3. Further, the wind sent by the blower fan 7 is strong on the outer peripheral side and weak on the inner peripheral side. However, as shown in FIG. 3, since the thickness of the deodorizing material 10 at the central portion is thin, The air flow generated on the wall surface side of the ventilation path 5 passes through the deodorizing material 10 without being interrupted.

Next, the operation of the deodorizing material 10 during heating and regeneration will be described with reference to FIGS. At this time, the blower fan 7 is stopped. As a result, as shown in FIG.
And the outlet valve 12 is closed, and the deodorizing material 10 is isolated from the outside air in the ventilation path 5. The control unit 14 monitors the temperature of the deodorizing material 10 based on a detection signal from the thermocouple 15, and determines whether the monitored temperature is equal to or higher than the reference temperature T0 (step S1). The reference temperature T0 is set to a temperature at which oxidative decomposition of odor components is smoothly performed as described below.
For example, about 300 ° C. is appropriate. When the monitored temperature is lower than the reference temperature T0, the magnetron 17 is driven (step S2), and when the monitored temperature is higher than the reference temperature T0, the driving of the magnetron 17 is stopped (step S2).
3). By such control, the temperature rapidly rises in the early stage of heating, and when the temperature reaches the reference temperature T0, the temperature is maintained in the vicinity.

Thereafter, the control unit 14 controls the odor sensor 18
The odor level is monitored based on the detection signal from, and it is determined whether the odor level is equal to or less than the reference value (step S4). Until the heating temperature is sufficiently increased, the oxidative decomposition reaction hardly occurs or is extremely weak.
The elimination of the odor component from the deodorizing material 10 is more dominant than the oxidative decomposition of the 0 adsorbate. For this reason, the air containing the odor component released from the deodorizing material 10 fills the closed ventilation path 5. As the temperature rises, the air expands and the gas pressure inside increases, but the rise in pressure is absorbed by the expansion of the bellows body of the pressure absorbing portion 13, so that
The closing of the outlet valve 12 is reliably maintained.

For the above-mentioned reason, the odor level of the air in the closed space temporarily rises at the beginning of heating, and it is usually determined in step S3 that the odor level is higher than the reference value. Next, it is determined whether the timer set time set by the user or automatically set as the heating regeneration operation time has expired (step S5). Until the timer set time ends, the process returns to step S1, and the above steps S1 to S1
Step 5 is repeated. As described above, at first, the odor level is high because the desorption of the adsorbate from the deodorizing material 10 is more dominant, but if the oxidative decomposition becomes dominant over the desorption of the adsorbate due to the continuation of heating, the closed space The odor level inside gradually decreases. When the odor level falls below the reference value ("Y" in step S4), it is determined that the adsorbate has been sufficiently decomposed, and the driving of the magnetron 17 is stopped (step S6). Even if the odor level does not fall below the reference value, if the timer set time has elapsed (“Y” in step S5), the magnetron 17
Is stopped.

During the heating and regeneration operation, the temperature of the air in the closed space rises to nearly 100 ° C., and the high-temperature air comes into contact with the sterilization filter 11 so that the sterilization filter 11 can be used during the deodorization operation. Ticks attached to the
Bacteria and the like die.

After the magnetron 17 is stopped in step S6, the blower fan 7 is rotated "strong" by the control unit 14 (step S7). As a result, the inlet valve 6 and the outlet valve 12 are opened in the same manner as in the deodorizing operation, and the intake port 2 is opened.
The outside air sucked from passes through the deodorizing material 10 to take heat,
It is discharged from the exhaust port 3. When the predetermined cooling time has ended (“Y” in step S8), the blower fan 7 is stopped (step S9).

The blower fan 7 in the above step S7
It is also possible to wait for the deodorizing material 10 to cool naturally without performing the drive. In this case, until the predetermined cooling time has elapsed, even if the user performs the operation of starting the deodorizing operation,
It is better not to accept this. With this configuration, it is possible to prevent the high-temperature air heated by the deodorizing material 10 from being discharged from the exhaust port 3 by rotating the blower fan 7 while the deodorizing material 10 is at a high temperature. Furthermore, after detecting that the monitor temperature of the thermocouple 15 has dropped below a predetermined temperature, the thermocouple 15 may return to a state in which the deodorizing operation can be started. When the deodorizing material 10 is regenerated as described above, the deodorizing material 10 can again adsorb odor components.

Next, a deodorizing apparatus according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a configuration diagram of the deodorizing apparatus of the present embodiment, and FIG. 6 is a flowchart showing control during the heating and regeneration operation of the deodorizing material. The appearance of this deodorizing device can be the same as the example shown in FIG.

As shown in FIG. 5, in this deodorizing device, a deodorizing material 10 is placed inside the ventilation path 5 connecting the intake port 2 and the exhaust port 3 from the intake port 2 side to the exhaust port 3 side. The stored cavity 9, the sterilization filter 11, and the blower fan 7
Are provided. On the side wall between the cavity 9 and the blower fan 7, a pressure absorbing portion 13 formed of a bellows body is formed so as to protrude. That is, in this configuration, there is no valve for sealing the ventilation passage 5.

A first odor sensor 181 is provided between the intake port 2 and the cavity 9 in the ventilation path 5, and a second odor sensor 182 is provided between the blower fan 7 and the exhaust port 3. The detection signals of the two odor sensors 181 and 182 are input to the control unit 14 together with the detection signal of the thermocouple 15.

During the deodorizing operation, when the blower fan 7 is rotated in a predetermined rotation direction (the rotation direction at this time is referred to as "forward rotation") under the control of the control unit 14, the outside air sucked from the intake port 2 is ventilated. It is sent upward in the road 5, and the deodorizing material 10
After passing through the sterilizing filter 11, the air is discharged from the exhaust port 3 (see the solid arrow in FIG. 5). The odor components contained in the outside air are adsorbed by the deodorizing material 10, and fine suspended matters and the like are trapped by the sterilization filter 11, so that clean air from which the odor has been removed is discharged from the exhaust port 3.

Next, the operation of the deodorizer 10 during the heating and regeneration operation will be described with reference to FIGS. At this time, the blower fan 7 is rotated "weakly" in the direction opposite to the normal rotation by the control unit 14 (step S11). As a result, an airflow is generated in the ventilation path 5 that moves gently downward from above, which is opposite to that during the deodorizing operation (see the dotted arrow in FIG. 5). Thereafter, the control unit 14 monitors the temperature of the deodorizing material 10 based on the detection signal from the thermocouple 15, and determines whether the monitored temperature is equal to or higher than the reference temperature T0 (step S1).
2). When the monitored temperature is lower than the reference temperature T0, the magnetron 17 is driven (step S13), and when the monitored temperature is higher than the reference temperature T0, the driving of the magnetron 17 is stopped (step S14). By such control, the temperature rapidly rises in the early stage of heating, and when the temperature reaches the reference temperature T0, the temperature is maintained in the vicinity.

Thereafter, the control unit 14 monitors the respective odor levels S1 and S2 based on the detection signals from the first and second odor sensors 181 and 182, and makes a difference (S2-S1) between the odor levels equal to or more than the reference value. Is determined (step S15). Until the heating temperature is sufficiently increased, the oxidative decomposition reaction hardly occurs or is extremely weak, so that the odor component is more predominantly separated from the deodorizing material 10 than the adsorbate of the deodorizing material 10 is oxidatively decomposed. It is. Therefore, the odor component released from the deodorizing material 10 is released into the air. Since the temperature of the air containing the odor component is high, the air tends to rise in the ventilation passage 5, but as described above,
Is pushed back downward by the wind force, and stays around the cavity 9.

If the wind power is too strong and the air containing the odor component is pushed to the position of the first odor sensor 181, S
Since 1> S2, "N" is determined in step S15, and the driving force of the blower fan 7 is reduced (step S1).
7). If it is not possible to down more than that point, the rotation of the blower fan 7 may be temporarily stopped. Conversely, when the wind power is too weak and the air containing the odor component reaches the position of the second odor sensor 182, S2> S1, so that it is determined as "Y" in step S15, and the driving force of the blower fan 7 is increased. (Step S16). That is, by controlling the rotation speed of the blower fan 7, the air containing the odor component is
It is configured to stay between the odor sensor 181 and the second odor sensor 182.

At this time, the internal gas pressure rises due to the rise in temperature, but the rise in pressure is absorbed by the expansion of the bellows of the pressure absorbing portion 13, so that the leakage of air containing odorous components can be prevented. Is more effectively prevented.

Next, it is determined whether the timer set time set by the user or automatically as the heating regeneration operation time has expired (step S18). Until the timer set time ends, the process returns to step S12, and the processes of steps S12 to S18 are repeated. As described above, initially, the odor level is high because the desorption of the adsorbate from the deodorizing material 10 is more dominant. The ambient odor level gradually decreases. And
When the timer set time has elapsed (“Y” in step S18), the driving of the magnetron 17 is stopped (step S19). Thereafter, the blower fan 7 is turned to “strong” rotation (step S20), and when a predetermined cooling time is completed (“Y” in step S21), the rotation of the blower fan 7 is stopped (step S22). When the deodorizing material 10 is regenerated as described above, the deodorizing material 10 can again adsorb odor components.

The above embodiment is merely an example, and it is apparent that changes and modifications can be made within the spirit of the present invention.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a deodorizing apparatus according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of the deodorizing apparatus according to the first embodiment (operational state diagram at the time of a deodorizing material heating / regenerating operation).

FIG. 3 is an operation state diagram during a deodorizing operation in the deodorizing apparatus according to the first embodiment.

FIG. 4 is a control flowchart at the time of a heating and regeneration operation of a deodorizing material in the deodorizing apparatus according to the first embodiment.

FIG. 5 is a configuration diagram of a deodorizing device according to a second embodiment of the present invention.

FIG. 6 is a control flowchart at the time of a deodorizing material heating / regenerating operation in the deodorizing apparatus according to the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 ... Intake port 3 ... Exhaust port 5 ... Ventilation path 6 ... Inlet valve 7 ... Ventilation fan 9 ... Cavity 10 ... Deodorizing material 11 ... Bacteria removal filter 12 ... Outlet valve 13 ... Pressure absorption part 14 ... Control part 15 ... Thermocouple 16 ... metal cylinder 17 ... magnetron 18 ... odor sensor

Claims (9)

[Claims] A) a ventilation path connecting an intake port and an exhaust port; b) a deodorizing material provided in the ventilation path; c) heating means for heating the deodorizing material; Air blowing means for blowing air into the ventilation path; and e) first and second valves capable of closing the ventilation path at upstream and downstream sides of the deodorizing material, respectively. And opening the second valve to allow air to flow through the ventilation path by the blowing means,
In the regeneration treatment of the deodorizing material, the deodorizing material is heated by the heating means, and the first and second valves are closed to isolate the deodorizing material from the outside of the ventilation path. apparatus. The first and second valves include a valve stop formed on an inner wall of the ventilation path and a valve plate urged by an elastic member in the valve stop direction. When the blowing is stopped, the valve plate abuts against the valve stop by the urging force of the elastic member to close the ventilation passage, and when the ventilation is performed, a force is applied to the valve plate in a direction opposite to the urging direction, and the ventilation passage is formed. The deodorizing device according to claim 1, wherein the device is opened. 3. The deodorizing apparatus according to claim 1, further comprising an odor detecting means in an air passage closed by the first and second valves. 4. A ventilation path connecting an intake port provided below and an exhaust port provided above, b) a deodorizing material disposed in the ventilation path, and c) heating the deodorizing material. Heating means, d) blowing means for selectively blowing air upward or downward in the ventilation path, e) circulating air upward from the intake port to the exhaust port during deodorizing operation. And a control means for controlling the blowing means to blow air gently downward during the regeneration processing of the deodorizing material. 5. A first odor detection means is provided in a ventilation path from the intake port to the deodorizing material, and a second odor detection means is provided in a ventilation path from the exhaust port to the deodorizing material. 5. The control device according to claim 4, wherein the control unit controls the blowing unit based on detection signals of the first and second odor detecting units.
The deodorizing device according to 1. 6. The deodorizing apparatus according to claim 1, wherein a temperature detecting means is provided in close contact with or near the deodorizing material. 7. The heating device includes a magnetron, and the deodorizing material is disposed in a cavity formed to prevent microwaves generated from the magnetron from leaking and to allow an air flow to pass therethrough. Claim 6
The deodorizing device according to 1. 8. The temperature detecting means comprises a microwave shielding member which is a hollow body continuous from the cavity to the deodorizing material, and a temperature sensor inserted in the shielding member. Item 8. A deodorizing device according to Item 7. 9. The deodorizing apparatus according to claim 1, wherein a pressure absorbing portion having a variable volume is provided in a space in an air passage near the deodorizing material.