JP2003194367A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To detect whether a cold cathode tube type ultraviolet lamp is switched on or not, via a simple structure. <P>SOLUTION: A body 1 incorporates a refrigeration cycle comprising a compressor 24, an evaporator 22, a condenser 23 and a blower 12. The cold cathode tube type planar germicidal lamp 27 having an ultraviolet ray emission surface 27k and a visible light emission surface 27m irradiates air suctioned through front air inlets 6 and 7 with ultraviolet rays 27i to sterilize it. A photosensor 35 detects visible light 27j emitted from the visible light emission surface 27m to detect whether the planar germicidal lamp 27 is switched on or not. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for irradiating air with ultraviolet rays from an ultraviolet lamp to sterilize bacteria contained in the air.

[0002]

2. Description of the Related Art Heretofore, as a UV lamp for irradiating bacteria contained in room air, a hot cathode tube type has been used which heats a filament to emit thermoelectrons and emits UV rays. As a method for detecting whether or not this hot-cathode tube type ultraviolet lamp is turned on, as described in Japanese Utility Model Laid-Open No. 7-42087 (H05B 37/03 G01K 7/00), between filaments at both ends. If the filament and the resistor are not connected to the resistor and voltage is applied between the resistor and the photoisolator, a current flows through the resistor to the photoisolator, and conversely, the filament is disconnected. Is broken,
Since no current flows through the photo isolator, it is possible to detect whether or not the ultraviolet lamp is lit by detecting this current.

However, in the above structure, if the circuit for detection is broken, it may not be detected even if the ultraviolet lamp is turned on. Further, since the hot cathode tube type lamp has a fast filament deterioration and a short lamp life, in recent years, a cold cathode tube type ultraviolet lamp capable of emitting electrons and emitting ultraviolet rays by glow discharge from an electrode has been used. It has started to be done. Since this cold-cathode tube lamp does not have a filament, it cannot detect lighting by the above-mentioned detection method.Therefore, as another lamp lighting detection method, the current flowing in the lamp drive circuit or the electrode voltage is detected. The way to do is taken. However, when the current is detected, there is no significant difference between the current when the lamp is lit and the current when the lamp is short-circuited and the lamp is not lit because the resistance of the lamp is low. Since a cold-cathode tube type lamp does not light up unless a high voltage is applied to the electrodes, especially when it does not light up due to its life, the open-circuit voltage of the lighting power supply becomes about 4 kV, so both short-circuiting and opening are accurate. For good detection, there is a problem that the detection configuration becomes complicated and the cost becomes high.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide an air conditioner capable of detecting whether or not a cold cathode tube type ultraviolet lamp is turned on with a simple structure.

[0005]

According to the present invention, a refrigerating cycle including an evaporator, a condenser, a compressor, a blower and the like is built in a main body, and air sucked from an intake port is dehumidified by the refrigerating cycle. An air passage blown out from an exhaust port, an ultraviolet lamp for irradiating air with ultraviolet rays in the air passage to sterilize, an operation control unit for controlling the operation of the main body, and the ultraviolet lamp controlled by the operation control unit. And a lamp lighting power source for lighting the ultraviolet lamp, the ultraviolet lamp is formed in a planar shape, ultraviolet rays are emitted from one surface, visible light is emitted from the other surface, and visible light emitted from the other surface is detected. It is characterized in that a lamp detecting means for detecting whether or not the ultraviolet lamp is turned on is provided.

With the above structure, when the operation control section is operated, the blower is driven and air is taken into the main body from the intake port, and this air is dehumidified by the evaporator and at the same time, Bacteria are sterilized by the ultraviolet rays emitted from one surface of the ultraviolet lamp and blown out from the exhaust port. When the ultraviolet lamp is turned on, the lamp detection means detects visible light emitted from the other surface of the ultraviolet lamp, and when the ultraviolet lamp is not turned on, the lamp detection means detects. Therefore, it is possible to reliably detect with a simple configuration that the ultraviolet lamp is not lit due to its life or short circuit.

Further, when the lamp detecting means detects non-lighting of the ultraviolet lamp, the operation control unit stops the power supply from the lamp lighting power source to the ultraviolet lamp. When the tube type ultraviolet lamp is used, a voltage of about 1 kV is required to turn it on, and when the lamp is not turned on for the life of the lamp, the open voltage of the lighting power source, about 4 kV, is applied to the electrode of the ultraviolet lamp. The high voltage is not left as it is and the safety is improved.

Further, since it is characterized in that a display section for indicating the operating state of the main body is provided and the display section indicates that the ultraviolet lamp is not lit, the user can display the ultraviolet lamp by this display. You can recognize that it is not lit due to the life or short circuit, and you can quickly respond to troubles.

Further, when the lamp detecting means detects the non-lighting of the ultraviolet lamp, the means for notifying the non-lighting of the ultraviolet lamp by sound or voice is provided. When the lamp goes out, for example, a warning beeping sound or a voice "lamp does not light up" is emitted, so that the user can recognize by sound that the ultraviolet lamp does not light up. You can quickly respond to troubles.

Further, a lamp board on which the lamp lighting power source is mounted is provided, and the ultraviolet lamp is attached with the other surface side from which visible light is emitted contacting one surface of the lamp board. Since the lamp board and the ultraviolet lamp are integrated, the number of parts such as lead wires and connectors can be reduced. Further, by contacting the surface of the lamp substrate with which visible light is emitted, ultraviolet rays are not applied to the lamp substrate, so that the lamp substrate and electronic components mounted on the substrate are deteriorated. There is nothing to do. Further, since the one surface side where the ultraviolet rays are emitted is exposed, the lamp substrate and the ultraviolet lamp can be integrated without reducing the ultraviolet irradiation area.

Further, since the lamp detecting means is mounted on the lamp board, the distance between the lamp detecting means and the ultraviolet lamp is shortened, so that the visible light emitted from the ultraviolet lamp is surely secured. Can be detected.

Further, since the photocatalytic filter is disposed at a position facing the one surface of the ultraviolet lamp, the photocatalytic layer of the photocatalytic filter is excited by the ultraviolet light emitted from the one surface of the ultraviolet lamp, It is possible to oxidize and decompose the malodorous components of the air sucked from the intake port, and in addition to the bactericidal effect of the ultraviolet lamp, deodorant and the growth of mold can be prevented.

Further, since there is provided a storage case in which a slit capable of ventilation is formed and in which the lamp substrate, the ultraviolet lamp, and the light deodorizing filter are stored, the lamp substrate and the ultraviolet ray are provided. The three parts of the lamp and the light deodorizing filter can be unitized, which facilitates installation and maintenance.

Further, since the slit is formed by cutting and raising it in the shape of armor, the ultraviolet light emitted from the ultraviolet lamp is blocked by the slit, and the ultraviolet light leaks to the outside of the storage case. Can be prevented.

Further, since the ultraviolet lamp is arranged on the side of the intake port, bacteria and malodorous components contained in the air sucked from the intake port are absorbed in the evaporator and the condenser. Since it is removed upstream, the evaporator,
It is possible to prevent bacteria and malodorous components from adhering to the surface of the condenser.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to the drawings using a dehumidifier as an example.

FIG. 1 is a perspective view of a main body of the dehumidifier according to the present invention seen obliquely from the front, FIG. 2 is a perspective view of the dehumidifier when a front cover is removed, and FIG. 3 is a side sectional view of the dehumidifier. Figure, Figure 4
Is a top cross-sectional view of the dehumidifier, FIG. 5 is an explanatory view showing the basic configuration and principle of the flat sterilization lamp, and FIG. 6 shows a flat sterilization lamp, a photocatalyst filter, and a lamp substrate in the storage case of the dehumidifier. FIG. 7 is a longitudinal sectional view when stored, FIG. 7 is a rear sectional view of FIG. 6, FIG. 8 is a lateral sectional view of FIG. 6, FIG. 9 is an enlarged view of a main part of FIG. 6, and FIG. FIG. 11 is a block diagram showing the control circuit of FIG. 11, and FIG. 11 is a flowchart showing the operation of this embodiment.

Reference numeral 1 denotes an air conditioner body which is formed to be shorter in the left-right direction than in the front-rear direction, and the outer surface of the body 1 is composed of a left case 2, a right case 3 and a bottom plate 4 made of synthetic resin. .

Reference numeral 5 denotes a removable front cover which is made of transparent or translucent synthetic resin and is mounted above the front side of the main body 1. The front cover 5 is formed in an arc shape, It is attached so as to cover a part of the left and right side surfaces from the front surface.

Reference numerals 6 and 7 denote narrow front air intakes formed between both sides of the front cover 5 and the left case 2 and the right case 3 for sucking air in the room.

Reference numeral 8 denotes a rear intake port of a grill structure provided on the rear surface of the main body 1 for taking in the air in the room, and further connected to the rear intake port 8 to the right case 3 and a side intake port 9 of the grill structure. Are formed. By providing the intake ports at three positions on the front and rear surfaces of the main body 1 and on one side surface side, it is possible to install them in a narrow space such as a gap between the side wall of the press fit and the futon or a gap between furniture and furniture. Also, all three intake ports are not blocked, and it is possible to prevent the dehumidification ability from decreasing due to the decrease in the intake amount.

Reference numeral 10 denotes a V-shaped filter which is detachably arranged under the front cover 5 and is capable of removing dust in the air sucked from the front inlets 6 and 7. There is.

Reference numeral 11 denotes a fan casing which surrounds the motor 13 and the blades 14 of the centrifugal blower 12. The fan casing 11 has an upward casing 15 and a downward casing 16.
And are integrally formed. The opening of the upward casing 15 communicates with the upper outlet 17 formed on the upper surface of the main body 1, and the opening of the downward casing 16 is formed below the left case 2. It communicates with the air outlet 18. Therefore, when the centrifugal blower 12 rotates, the air taken in from the front inlets 6 and 7, the rear inlet 8, and the side inlet 9 is dehumidified and heated by an evaporator 22 and a condenser 23 described later. After that, the air is blown out from the upper outlet 17 and the lower outlet 18.

Reference numeral 19 is a louver that deflects the air blown out from the upper outlet 17 from the front side to the rear side of the main body 1, and pivot shafts (not shown) formed at both ends of the louver are provided in the upper outlet 19. It is rotatably mounted by being pivotally supported on the side wall surface.

Reference numeral 20 denotes an opening / closing shutter which opens and closes the lower outlet 18 up and down. When the opening / closing shutter 20 is open, the sucked air is blown out from both the lower outlet 18 and the upper outlet 17. When closed, it can be blown out from the upper outlet 17.

Reference numeral 21 is a partition plate that partitions the main body 1 into an upper part and a lower part. On the upper part of the partition plate 21, the evaporator 22, the condenser 23 and the centrifugal blower 12 are sequentially arranged from the right case 3. There is.

Reference numeral 24 denotes the evaporator 22 and the condenser 23.
And the like, which constitute a refrigeration cycle, the compressor 24 is arranged on the rear side of the lower portion of the main body 1.

Reference numeral 25 denotes a drainage tank which is detachably accommodated under the front surface of the main body 1. The drainage tank 25 is formed in a box shape with an opening at the upper side, and the condensed water generated in the evaporator 22 is stored in the drainage tank 25. It is designed to be stored. A float (not shown) that floats as the condensed water rises is rotatably supported on the upper side wall of the drain tank 25.

Reference numeral 26 denotes a handle portion which is formed on the front surface of the drainage tank 25 by being recessed upward from the bottom so that the drainage tank 25 can be pulled out forward.

Reference numeral 27 denotes a flat sterilization lamp which is formed in a flat shape and emits ultraviolet rays. The flat sterilization lamp 27 emits ultraviolet rays having a wavelength of 253.7 nm which maximizes the sterilization effect from one surface side to the other surface side. To 452 nm visible light. The plane sterilization lamp 27 is arranged on the front intake ports 6 and 7 side together with a photocatalyst filter 29 described later.

FIG. 5 shows the basic structure and principle of the flat sterilization lamp 27. The flat surface sterilization lamp 27 has one surface side made of UV transparent glass (value soda glass) 27a through which ultraviolet rays pass, and the other surface side transmits visible light without passing through ultraviolet rays and has a phosphor 27b applied on the inner surface side. It is made of normal soda glass 27c, inside of which mercury vapor and argon gas are enclosed, and discharge electrodes 27 are provided on both sides.
d and 27e are arranged. The discharge electrodes 27d, 27
When a voltage of about 1 kV is applied to e, glow discharge occurs, and electrons 27f flowing between the discharge electrodes 27d and 27e collide with argon atoms 27g and mercury atoms 27h. Mercury atom 2
The ultraviolet ray 27i generated by colliding with 7h passes through the UV transparent glass 27a on the one surface side, and hits the light emitting body 27b on the soda glass 27c side on the other surface side to generate visible light 27j. That is, in the flat sterilization lamp 27, the UV transparent glass 27a side serves as an ultraviolet light emitting surface 27k, and the soda glass 27c side serves as a visible light emitting surface 27m.

Reference numeral 28 denotes a storage case for storing the flat sterilization lamp 27, and the side walls on both sides of the storage case 28 have
A plurality of outer slits 28a that are cut and raised in the shape of armor toward the outside are formed so that ventilation is possible. The plane sterilization lamp 27 is housed so that the visible light emitting surface 27m can be seen from a vertically long opening 28b formed on the front side of the housing case 28. Then, the visible light 27j is applied to the front cover 5 side through the opening 28b, and the ultraviolet light 27i is applied toward the inside of the storage case 28. Since the outer slit 28a is formed in the shape of armor, it is configured such that it blocks ultraviolet rays 27i and does not leak to the outside of the storage case 28.

Reference numeral 29 denotes a photocatalytic filter having a honeycomb structure made of an inorganic powder such as titanium dioxide. The photocatalytic filter 29 is attached to the bottom surface of a box-shaped reflection plate 30 having an upper opening made of aluminum, and It is housed in the housing case 28 together with the box-shaped reflector 30 so as to face the ultraviolet light emitting surface 27k. In the photocatalyst filter 29, the photocatalyst layer is excited by the ultraviolet rays 27i emitted from the ultraviolet ray emitting surface 27k to oxidize and decompose odorous components such as ammonia to deodorize. The adsorbed odorous components are oxidatively decomposed and regenerated, so that they can be used semipermanently without replacement.

Reference numeral 30a denotes inner slits which are cut and raised inward toward the inner wall of the side wall and the bottom surface of the box-shaped reflector 30. The inner slits 30a are formed in plural, and the outer slits 28a and 28a are formed. Similarly, by blocking the ultraviolet rays 27i emitted from the ultraviolet ray emitting surface 27k, the storage case 2
8 does not leak outside. The box-shaped reflector 3
The inner slits 30a on the side walls on both sides of 0 are formed in the same range as the outer slits 28a when the box-shaped reflecting plate 30 is housed in the storage case 28, and therefore pass through the storage case 28. The air is flowing smoothly.

Reference numeral 31 is a lamp board on which electronic parts such as a lamp lighting power source 32 for lighting the flat sterilization lamp 27 are mounted, and is housed in a board housing chamber 30b provided above the housing case 28, and the board is housed in the board housing chamber 30b. It is fixed with a screw 34 together with a lid 33 that closes the opening of the storage chamber 30b. Further, as shown in FIG. 9, the flat surface sterilization lamp 27 is attached by contacting the visible light emitting surface 27m with one surface of the lamp substrate 31, bending the discharge electrodes 23d and 23e into an L shape, and soldering. Has been. Then, on the side wall 27n of the flat sterilization lamp 27, the flat sterilization lamp 27 is provided.
The detection means for detecting the presence or absence of lighting by detecting the visible light 27j, that is, the photo sensor 35 is attached in close proximity. Visible light 2 emitted from the visible light emitting surface 27m
Since 7j is reflected by the lamp substrate 31 and penetrates from the side wall 27n of the flat surface sterilization lamp 27, even if the photosensor 35 is attached to the side wall 27n of the flat surface sterilization lamp 27, whether or not the flat surface sterilization lamp 27 is turned on. Can be detected.

With these configurations, the photosensor 35 detects the visible light 27j emitted from the visible light emitting surface 27m, so that the flat surface sterilization lamp 27 is detected.
It is possible to easily detect whether or not the lamp is turned on, and it is possible to easily supply power from the lamp lighting power supply 32 to the discharge electrodes 27d and 27e without providing a separate lead wire. Further, since the visible light emitting surface 27m is in contact with one surface of the lamp substrate 31, the ultraviolet light 27i is emitted by the lamp substrate 31, the photo sensor 35, and the lamp lighting power source 32.
Since it is not irradiated to electronic parts such as
Since the deterioration due to i can be prevented and the ultraviolet light emitting surface 27k from which the ultraviolet light 27i is emitted is exposed, the ultraviolet irradiation area is reduced and the sterilizing ability is not deteriorated. The lamp board 31, the planar sterilization lamp 27, and the light deodorizing filter 29 are housed in the housing case 28 to form a unit, which facilitates installation and maintenance.

Reference numeral 36 denotes an opening 28 of the storage case 28.
a lens arranged so as to cover the side b,
Reference numeral 6 denotes visible light 2 emitted from the visible light emitting surface 27m.
7j can be deflected to irradiate the front cover 5.

Reference numeral 37 is a handle that is rotatably provided on the upper portion of the main body 1 and is foldably stored in a recess 38 formed on the upper surface of the main body 1. The handle 37 is raised and held by hand. It becomes possible to move 1.

Reference numeral 39 denotes an operating portion provided above the front surface of the main body 1. The operating portion 39 has a power switch 40 for driving and stopping the main body 1, and a lighting switch for the flat sterilization lamp 27 described later. 50, a full lamp 41 for notifying that the drainage tank 25 is full, and a display section 42 for displaying the lighting state of the planar sterilization lamp 27 and the operation setting and operating state of the main body 1 on a liquid crystal screen. Further, the operation section 39 is provided with an informing means for informing that the flat surface sterilization lamp 27 is not turned on, that is, a speaker 43 for emitting sound and voice.

Next, the control circuit of this embodiment will be described with reference to FIG.

Reference numeral 44 denotes the compressor 24 and the centrifugal blower 12
Or a control means for controlling the flat sterilization lamp 27 or the like, that is, a microcomputer (hereinafter abbreviated as a microcomputer)
The microcomputer 44 is attached to the control circuit attachment plate 45 arranged below the operation section 39.

Reference numeral 46 denotes a display circuit for displaying the liquid crystal screen of the display section 41. The display circuit 46 outputs a signal from the microcomputer 44 when the signal for turning on the power switch 40 is input to the microcomputer 44. It is designed to be driven by the output.

Reference numeral 47 is a motor 13 of the centrifugal blower 12.
Is a motor drive circuit for driving the motor, and operates based on the set value of the operating state set on the display unit 41.

Reference numeral 48 denotes a compressor drive circuit for driving the compressor 24. The compressor drive circuit 48 outputs a drive signal for the operation time set on the display section 42 so that the compressor 24 is operated. Has become.

Reference numeral 49 is a float detecting sensor which detects the operation of the float by operating the float when the drain tank 25 is filled with the dehumidified water. When the float detecting sensor 49 detects the signal, a signal is sent to the microcomputer 44. It is input so that the operation of the main body 1, that is, the compressor 24 and the motor 13 are temporarily stopped, and the full lamp 41 is turned on by the output of the microcomputer 44 to inform the user. .

The user sees the lighting of the full water lamp 41, places his / her hand on the handle portion 26, takes out the drainage tank 25 from the inside of the main body 1, and removes the drainage tank 25.
After draining the water in the main body 1, the drainage tank 25 is mounted again in the main body 1 to eliminate the full-filled state, and the main body 1 is again closed.
The dehumidifying operation is started.

Reference numeral 50 is a lighting switch for lighting the planar sterilization lamp 27. When the lighting switch 50 is turned on, a signal is input to the microcomputer 43 and the microcomputer 44
Outputs a signal to the lamp lighting power source 32, and the lamp lighting power source 32 applies a voltage of about 1 kV to the discharge electrodes 27d and 27e of the flat panel sterilization lamp 27 to light the lamp.

Reference numeral 51 is a voice circuit for generating an alarm sound and a voice from the speaker 43, and when the signal from the photo sensor 35 is no longer input to the microcomputer 44,
That is, when the plane sterilization lamp 27 is not lit, a signal is output from the microcomputer 44 to the audio circuit 51, and the speaker 43 does not illuminate the plane sterilization lamp 27. The alarm sound and voice of "" are emitted. At this time, the microcomputer 44 outputs a signal to the display unit 42 to display that the flat panel sterilization lamp 27 is not turned on, and also stops the signal output to the lamp lighting power source 32, so that the discharge electrodes 27d and 27e are discharged. Moreover, the high voltage of about 4 kV of the open voltage of the lamp lighting power source 32 is prevented from being applied.

Then, the user can surely recognize that the plane sterilization lamp 27 is not turned on by the display of the display section 42 and the alarm sound and voice from the speaker 43, and the trouble is solved. Can respond quickly.

Next, the operation of the above configuration will be described.

When the power switch 40 is turned on and the operation is set on the display section 42, the blower 12 and the compressor 24 are operated,
The indoor air flows through the front intake ports 6, 7, as shown by the arrows in FIG.
It is sucked through the rear intake port 8 and the side intake port 9. When the lighting switch 50 is turned on, the plane sterilization lamp 27
Is lit, and when the air mainly sucked in through the front intake ports 6 and 7 enters the storage case 28 through the outer slit 28a and the inner slit 30a and passes through the storage case 28,
The bacteria contained in the air are sterilized by the ultraviolet rays 27i emitted from the ultraviolet ray emitting surface 27k of the flat sterilization lamp 27, and the malodorous components are deodorized by the photocatalytic filter 29. Then, the sterilized and deodorized air is transferred to the evaporator 22.
After being dehumidified as it passes through, the condenser 23 is heated and the dry warm clean air is blown out from the upper outlet 17 and the lower outlet 18. Since the flat sterilization lamp 27 and the photocatalyst filter 29 are arranged at the front air inlets 6 and 7, bacteria and malodorous components contained in the sucked air are
It is removed upstream of the evaporator 22 and the condenser 23, and the evaporator 2
2. It is possible to prevent bacteria and malodorous components from adhering to the surface of the condenser 23.

By the way, by passing through the evaporator 22, the water removed from the room air flows through the drain hole (not shown) to the drain tank 25, and when the drain tank 25 is filled with the dehumidified water. The float detection sensor 49 that detects the operation of the float and detects the operation of the float is filled with water, and the operation is stopped, and the full lamp 41 is turned on to notify the user.

The user sees the lighting of the full water lamp 41,
The drainage tank 25 is taken out of the main body 1 by holding the handhold portion 26. Then, after draining the water in the drain tank 1, the drain tank 25 is mounted in the main body 1 again. As a result, the full water state is canceled and the dehumidifying operation is started again.

Next, an embodiment of the present invention having the above structure will be described with reference to the flowchart of FIG.

When the power switch 40 of the operation unit 39 is turned on (S1), a menu screen for setting the operation state of the main body 1 is displayed on the liquid crystal screen of the display unit 41, and when the operation state is set, the operation of the main body 1 is started. Yes (S2).

Next, when the lighting switch 50 is turned on (S
3), a signal is output from the microcomputer 44 to the lamp lighting power supply 32, and the lamp lighting power supply 32 outputs the planar sterilization lamp 2
A voltage of about 1 kV is applied to the discharge electrodes 27d and 27e of No. 7 to turn them on (S4).

Next, since the photo sensor 35 does not detect the visible light 27j when the flat sterilization lamp 27 does not light up due to the life or short circuit (S5), the microcomputer 44 is used.
Stops the signal output to the lamp lighting power supply 32, stops the power supply from the lamp lighting power supply 32 to the discharge electrodes 27d and 27e (S6), and causes the display unit 42 to display "Do not light" (S7). ).

Next, the alarm speaker 43 emits a warning beep and a sound "The lamp does not light up."

As described above, when the plane sterilization lamp 27 is turned on, the photosensor 35 detects the visible light 27j emitted from the visible light emitting surface 27m of the plane sterilization lamp 27, and the plane sterilization is performed. When the lamp 27 does not light up, the photo sensor 35 does not detect the visible light 27j, and therefore it is possible to reliably detect with a simple configuration that the planar sterilization lamp 27 does not light up due to life or short circuit. effective.

When the plane sterilization lamp 27 is not turned on, the microcomputer 44 causes the lamp lighting power source 32 to be turned on.
When the cold cathode tube type planar sterilization lamp 27, which requires a voltage of about 1 kV for its lighting voltage, is not lit for a long time by stopping the power supply to the planar sterilization lamp 27 from the lamp lighting power source 32. Since a high voltage of about 4 kV of open voltage is applied to the discharge electrodes 27d and 27e, the discharge electrodes 27d and 27e of the flat sterilization lamp 27 will not be left in a state in which a high voltage is applied, which is safe. There is an effect that the property can be improved.

When the plane sterilization lamp 27 is not lit, the display section 42 displays "Does not illuminate." Therefore, the user can use the display to display the life or short circuit of the plane sterilization lamp 27. It is possible to recognize that it is not lit due to reasons such as the above, and it is possible to quickly respond to trouble resolution.

Furthermore, when the flatbed sterilization lamp 27 is not turned on, the speaker 43 emits an alarm sound and a sound "the lamp does not turn on." It is possible to recognize that the sterilization lamp 27 is not lit due to a life, a short circuit, or the like, and it is possible to quickly solve the trouble.

Further, since the planar sterilization lamp 27 is mounted with the visible light emitting surface 27m for emitting the visible light 27j in contact with the surface of the lamp substrate 31, the lamp substrate 31 and the planar sterilization lamp 27 are attached. Can be integrated, and the number of parts such as lead wires and connectors can be reduced.
In addition, since the ultraviolet rays 27i are not applied to the lamp substrate 31, the lamp substrate 31, the lamp lighting power source 32 mounted on the substrate, and the photo sensor 3 are mounted.
The electronic parts such as 5 are not deteriorated, and by exposing the ultraviolet light emitting surface 27k side, the lamp substrate 31 and the ultraviolet lamp 27 can be integrated without reducing the ultraviolet irradiation area. There is an effect.

Further, since the photosensor 35 is mounted on the lamp board 31, the distance between the photosensor 35 and the plane sterilization lamp 27 is shortened, and the visible light 27i of the plane sterilization lamp 27 is reliably detected. The effect is that you can.

The photocatalytic filter 29 is provided at a position facing the ultraviolet light emitting surface 27k of the flat sterilization lamp 27.
Since the photocatalytic layer of the photocatalytic filter 29 is excited by the ultraviolet rays 27i emitted from the ultraviolet ray emitting surface 27k of the ultraviolet lamp 27, the malodorous components of the air sucked from the front inlets 6 and 7 are removed. It can be oxidized and decomposed, and in addition to the sterilizing effect of the flat sterilization lamp 27, there is an effect that deodorization and mold growth can be prevented.

Further, since the lamp substrate 31, the flat surface sterilizing lamp 27 and the light deodorizing filter 29 are housed in the housing case 28, the lamp substrate 31, the flat surface sterilizing lamp 27 and the light deodorizing filter 29 are stored. Of 3
The two parts can be made into a unit, which has the effect of facilitating installation and maintenance.

Further, the outer slit 2 of the storage case 28
Since 8a is cut and raised like an armor, ultraviolet rays 27i emitted from the flat sterilization lamp 27 are blocked by the outer slits 28a, and the ultraviolet rays 27i do not leak to the outside of the storage case 28. There is.

Further, since the plane sterilization lamp 27 is arranged on the side of the front air inlets 6 and 7, the front air inlets 6,
Bacteria and malodorous components contained in the air sucked from 7 are removed upstream of the evaporator 22 and the condenser 23. Therefore, bacteria and malodorous components are removed from the surfaces of the evaporator 22 and the condenser 23. There is an effect that the adhesion can be prevented.

[0069]

According to claim 1 of the present invention, a cold cathode tube type ultraviolet lamp for sterilizing by irradiating air with ultraviolet rays is formed in a flat shape, and ultraviolet rays are emitted from one surface and visible light is emitted from the other surface. Since the lamp detection means that emits light and detects the visible light emitted from the other surface to detect whether or not the ultraviolet lamp is lit, when the ultraviolet lamp is lit,
If the lamp detecting means detects visible light emitted from the other surface of the ultraviolet lamp and the ultraviolet lamp does not light up, the lamp detecting means does not detect it, so the ultraviolet lamp lights up due to life or short circuit. That is, it is possible to reliably detect that there is no such problem with a simple configuration.

According to the second aspect of the present invention, when the lamp detecting means detects non-lighting of the ultraviolet lamp, the operation control unit stops the power supply from the lamp lighting power source to the ultraviolet lamp. When a cold cathode type ultraviolet lamp that requires a voltage of about 1 kV is used and the lamp does not light due to its life, the open voltage of the lighting power source, a high voltage of about 4 kV is applied to the electrodes of the ultraviolet lamp. Since it is not left as it is, the safety can be improved.

According to the third aspect of the present invention, since the display section for indicating the operating state of the main body is provided and the display section indicates that the ultraviolet lamp is not turned on, the user can display the ultraviolet ray by this display. It is possible to recognize that the lamp has not been lit due to the life of the lamp, short circuit, etc., and it is possible to take quick action to resolve the trouble.

According to claim 4 of the present invention, when the lamp detecting means detects non-lighting of the ultraviolet lamp, the notifying means is provided for notifying by sound or voice that the ultraviolet lamp is not turned on. When the ultraviolet lamp is no longer lit, for example, an alarm sound "pi-pi" or a voice "lamp does not illuminate." Is emitted, and the user recognizes by sound that the ultraviolet lamp is not lit. It has the effect of enabling quick response to trouble solving.

According to a fifth aspect of the present invention, since the ultraviolet lamp is mounted by contacting the other surface for emitting visible light with one surface of the lamp substrate on which the lamp lighting power source is mounted, By integrating with the ultraviolet lamp, the number of parts such as lead wires and connectors can be reduced. Also, since the lamp substrate is not irradiated with ultraviolet rays, the lamp substrate and electronic components mounted on the substrate are not deteriorated, and the one surface side where the ultraviolet rays are emitted is exposed. Therefore, it is possible to integrate the lamp substrate and the ultraviolet lamp without reducing the ultraviolet irradiation area.

According to the sixth aspect of the present invention, since the lamp detecting means is mounted on the lamp substrate, the distance between the lamp detecting means and the ultraviolet lamp is shortened, and the visible light emitted from the ultraviolet lamp is reduced. There is an effect that it can be surely detected.

According to the seventh aspect of the present invention, since the photocatalytic filter is arranged at a position facing the one surface of the ultraviolet lamp, the photocatalytic layer of the photocatalytic filter is excited by the ultraviolet light emitted from the one surface of the ultraviolet lamp. Then
The odorous components in the sucked air can be oxidized and decomposed, and in addition to the bactericidal effect of the ultraviolet lamp, deodorant and mold growth can be prevented.

According to the eighth aspect of the present invention, since the ventilation slit is formed and the housing for accommodating the lamp substrate, the ultraviolet lamp and the light deodorizing filter is provided, the lamp substrate, The three parts of the ultraviolet lamp and the light deodorizing filter can be unitized, and the effects such as easy installation and maintenance can be obtained.

According to claim 9 of the present invention, since the slit is formed by cutting and raising it in the shape of armor, the ultraviolet light emitted from the ultraviolet lamp is blocked by the slit, and the ultraviolet light is emitted to the outside of the storage case. There is an effect that it is possible to suppress the leakage of oil.

According to the tenth aspect of the present invention, since the ultraviolet lamp is arranged on the side of the intake port, bacteria and malodorous components contained in the air sucked from the intake port are condensed in the evaporator and the condensation unit. Since it is removed on the upstream side of the vessel, it is possible to prevent bacteria and malodorous components from adhering to the surfaces of the evaporator and the condenser.

[Brief description of drawings]

FIG. 1 is an external perspective view of a main body of a dehumidifier according to the present invention as seen obliquely from the front.

FIG. 2 is a perspective view of the dehumidifier when a front cover is removed.

FIG. 3 is a side sectional view of the dehumidifier.

FIG. 4 is a top sectional view of the dehumidifier.

FIG. 5 is an explanatory diagram showing the basic configuration and principle of the flat sterilization lamp.

FIG. 6 is a vertical cross-sectional view when a flat sterilization lamp, a photocatalytic filter, and a lamp substrate are stored in a storage case of the dehumidifier.

7 is a rear cutaway view of FIG.

8 is a cross-sectional view of FIG.

9 is an enlarged view of a main part of FIG.

FIG. 10 is a block diagram showing a control circuit of this embodiment.

FIG. 11 is a flowchart showing the operation of this embodiment.

[Explanation of symbols]

1 body 22 Evaporator 23 condenser 24 compressor 12 blower 6, 7 Front intake 8 Rear intake port 9 Side intake 17 Upper outlet 18 Upper outlet 27 Flat sterilization lamp (ultraviolet lamp) 44 Microcomputer (operation control unit) 32 lamp lighting power supply 27k UV emitting surface (one side) 27m visible light emitting surface (other surface) 35 Photo sensor (lamp detection means) 42 Display 43 speaker (informing means) 31 lamp board 29 Photocatalytic filter 28a outer slit 28 storage cases

Continued front page    (72) Inventor Hideo Sasao             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Akira Matsumoto             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Hachio Otani             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F-term (reference) 3K073 AA37 AA39 AA49 AA50 AA85                       BA24 BA28 CD06 CD08 CF02                 3L051 BC03                 3L061 BA01 BC05 BD03

Claims (10)

[Claims] 1. A blower path having a refrigeration cycle including an evaporator, a condenser, a compressor, a blower, etc. built in the main body, and dehumidifying air sucked from an intake port by the refrigeration cycle, and then blowing out from an exhaust port. An ultraviolet lamp for irradiating air with ultraviolet rays in the air passage for sterilization, an operation control section for controlling the operation of the main body, and a lamp lighting power source for lighting the ultraviolet lamp controlled by the operation control section. Prepare,
The ultraviolet lamp is formed in a flat shape, emits ultraviolet light from one surface, emits visible light from the other surface, and detects visible light emitted from the other surface to detect whether or not the ultraviolet lamp is turned on. An air conditioner provided with means. 2. The operation control unit stops the power supply from the lamp lighting power source to the ultraviolet lamp when the lamp detecting unit detects that the ultraviolet lamp is not lit. Air conditioner. 3. The air conditioner according to claim 1 or 2, wherein a display section for indicating an operating state of the main body is provided, and the display section indicates that the ultraviolet lamp is not turned on. 4. The informing means for informing by sound or voice that the ultraviolet lamp is not turned on when the lamp detecting means detects non-lighting of the ultraviolet lamp. The air conditioner according to claim 2. 5. A lamp board to which the lamp lighting power source is mounted is provided, and the ultraviolet lamp is attached with the other surface side of which the visible light is emitted contacting one surface of the lamp board. The air conditioner according to any one of claims 1 to 4. 6. The air conditioner according to claim 5, wherein the lamp detecting means is mounted on the lamp board. 7. The air conditioner according to claim 1, wherein a photocatalytic filter is arranged at a position facing one surface of the ultraviolet lamp. 8. The air conditioner according to claim 7, further comprising: a storage case having a slit through which air can be ventilated and in which the lamp substrate, the ultraviolet lamp, and the light deodorizing filter are stored. . 9. The air conditioner according to claim 8, wherein the slit is formed by cutting and raising it in the shape of armor. 10. The air conditioner according to claim 1, wherein the ultraviolet lamp is arranged on the intake port side.