JP2003065593A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that since pressure loss in the initial stage and increase in the pressure loss due to adhesion of dirt, dust, etc., are significant in a collecting filter shown by conventional technique, an air amount reduction and surging occur due to mounting of the filter on an air conditioner body, therefore, marked deterioration in quality such as performance, noise, splashing of dew, etc., is caused. SOLUTION: The pressure loss in the initial stage and the increase in the pressure loss due to the adhesion of dirt, dust, etc., are reduced by the collecting filter having an absorption surface of dust and dirt on a face along air flow at the downstream side of the air flow. Also, deodorizing capacity of the collecting filter is drawn out by making use of deodorizing operation of plasma generated by charged part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having an air cleaning function.

[0002]

2. Description of the Related Art FIG. 9 is a view showing an air conditioner provided with a charging section and a collecting filter on the downstream side of the charging section. In FIG. 9, 1 is an air conditioner main body, 2 is an air inlet, and 3 is an air conditioner. 4 is a pre-filter, 4 is a charging part composed of a reference electrode 5 and a counter electrode 6 shown in FIG. 4, and is fixed to the air conditioner body 1, and 7 is assembled and fixed to the air conditioner body 1.
A collector filter attached to a chassis member (not shown), 10 is a heat exchanger fixed to the air conditioner main body 1, 11 is a blower whose rotation shaft is fixed to the air conditioner main body 1, 12 Is an air outlet.

FIG. 10 is a detailed view of a collecting filter 7a composed of a dust collecting filter 8a and a deodorizing filter 9a made of a mesh material having fine meshes in the vertical direction of the prior art.

Next, the operation will be described. In FIG. 9, the outside air is sucked from around the air conditioner 1 by the flow of air formed by the blower 11, and passes through the air suction port 2, the pre-filter 3, the charging unit 4, the collecting filter 7a, and the heat exchanger 10. The air is blown out from the air outlet 12 into the room.

The air flow in the collecting filter 7a portion corresponds to the air flow from the surface of the paper surface corresponding to the front surface of the air conditioner 1 to the back surface of the paper surface which is the back surface of the air conditioner 1 in FIG.

A positive voltage is applied to the reference electrode 5 and a negative voltage is applied to the counter electrode 6. In the air conditioner configured as described above, large dust and the like is removed from the air containing dust and the like by the pre-filter 3. However, a substance having a small particle size, such as cigarette smoke, passes through the prefilter 3 and flows into the charging unit 4. An electric field is generated in the charging unit 4, and the dust is charged and collected by the dust collecting filter 8a of the collecting filter 7a. Further, the odor component contained in the outside air is sucked into the air conditioner 1 through the air suction port 2 and passes through the pre-filter 3, and then is adsorbed by the deodorizing filter 9a of the collecting filter 7a.

[0007]

In the prior art, the collecting filter faces the air flow at a right angle, and therefore has a problem that the pressure loss is large from the initial stage and the dust is adsorbed to cause a rapid increase in the pressure loss in a short time.

The role of the charging section in the prior art is as follows:
To improve the dust collection performance by facilitating adsorption to the dust collection filter arranged on the downstream side of the charging unit by collecting dust at the charging unit itself, or by charging dust etc. at the charging unit, Alternatively, when the dust-collecting filter is an electret filter, the charging life of the dust-collecting filter is improved by the electric field generated at the charging portion, and the effect on the deodorizing filter is not described.

Further, no effective measures have been taken to prevent electric shock at the charging portion and abnormal discharge due to adhesion of dust or the like to the charging portion.

The present invention has been made in order to solve the above problems, and reduces the initial pressure loss of the collection filter and the increase of pressure loss due to the adhesion of dust and the like, and reduces the air flow and the flow failure. It is an object of the present invention to provide an air conditioner in which the adverse effect on blower performance is improved by improving the stability phenomenon.

Another object is to improve the deodorizing performance by decomposing the odorous components adsorbed on the collecting filter and to extend the deodorizing effect period of the collecting filter.

Further, the present invention provides an air conditioner that can be used safely by including a switch, a detection mechanism and a display mechanism for preventing electric shock at the charging section and preventing abnormal discharge due to adhesion of dust and the like to the charging section. With the goal.

[0013]

[Means for Solving the Problems]

In the air conditioner according to the present invention, the shape of the collecting filter has a shape having a dust adsorbing surface on the surface along the air flow in order to reduce an initial pressure loss and an increase in pressure loss due to adhesion of dust and the like. .

Further, by decomposing the odorous component adsorbed on the collecting filter by the plasma generated from the charging portion, the deodorizing performance is improved and the deodorizing effect period of the collecting filter is extended.

Further, a pre-filter and an opening / closing detection mechanism for the air inlet grill are provided to prevent electric shock at the charging portion, and energization to the charging portion is stopped when the air inlet grill is open.
Furthermore, the grill of the charging part has a grill pitch so that the fingers do not directly touch the electrodes.

And a detection mechanism and a display mechanism for preventing an abnormal discharge due to the adhesion of dust and dust to the charging portion, for detecting the dirt condition of the collecting filter, and when the collecting filter is dirty, a filter replacement display It is characterized by displaying a lamp.

Further, it is characterized in that the degree of contamination of the charging section is judged, and when the charging section is contaminated, the energization of the charging section is stopped and a maintenance indication is displayed. Further, it is characterized in that the charging section is a mechanism which can be detached from the air conditioner body for easy maintenance.

Further, by controlling the energization to the charging section by the external operation switch, it is possible to switch between the air-cleaning independent operation and the simultaneous operation of the air-cleaning operation and the cooling, dehumidifying or heating operation. .

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 1 shows a cross-sectional view of an air conditioner body 1 according to an embodiment of the present invention. FIG. 2 is a front view of the air conditioner body 1 according to the embodiment of the present invention. 1 and 2, 1 is an air conditioner main body, 2 is an air inlet, 3 is a prefilter, 4 is a protruding electrode 5, a counter electrode 6 and a charging portion grill 19 having a grill pitch of 12 mm or less. The charging unit is detachable from the air conditioner body 1. 7 is a collection filter, 10 is a heat exchanger, 11 is a blower, 12 is an air outlet, 13 is an air cleaning filter, 14
Is an air inlet grill open / closed detection switch, 15 is a filter mounting detection switch, 16 is a filter replacement display lamp, 1
Reference numeral 7 is a charging section maintenance indicator lamp, and 18 is a sensor for detecting contamination of indoor air.

FIG. 3 shows a collection filter 7 according to the present invention.
It is a detailed view of b. The drawing shows a collection filter similar to a honeycomb, and the front and back sides on the paper surface are the air flow direction, and this collection filter 7b has an adsorption surface installed along the air flow direction, that is, in the direction parallel to the air flow. The suction surface is configured to adsorb dust. The collecting filter 7 is installed on the downstream side of the air flow of the charging section as shown in FIG. Therefore, unlike the collection filter that holds the adsorption surface at a right angle to the air flow as shown in FIG.
It reduces the initial pressure loss and the increase in pressure loss with respect to the intake air flow due to the adhesion of dust and the like.

The inside of the charging section 4 is shown in FIG. 4, a negative voltage is applied to the reference electrode 5 and a voltage close to the ground is applied to the counter electrode 6, and in the air conditioner configured as described above, dust and the like are contained. In the air, relatively large dust and the like are collected by the pre-filter 3, those having a small particle size are collected by the air cleaning filter 13, and odorous components are collected by the collecting filter 7b.
Is adsorbed on. In the charging section 4, plasma is generated by applying a voltage of about several KV in a pulse shape, and the generated plasma decomposes the odorous component adsorbed by the collection filter 7b.

The deodorizing effect of plasma will be described with reference to FIG. In the charging unit 4, a high voltage can be instantaneously applied by applying a voltage of about 4 KV or about 8 KV in a pulse shape, and the electric field near the discharge electrode can be increased, so that gas molecules are ionized and a plasma state is effectively formed. Can be made. A plasma state, which is a kind of corona discharge generated in the charging section 4, is formed. In other words, the high-speed electrons ejected from the charging section 4 ionize the gas molecules to change oxygen and moisture in the air and form radicals in a highly reactive form. Deodorization is performed by the radicals decomposing harmful gas or malodorous components in the air. Since radicals disappear in a few seconds, sufficient performance cannot be achieved by decomposition in air alone, so adsorbents such as activated carbon, titanium oxide catalysts and zeolites are placed in the latter stage for physical and chemical adsorption. As a result, the odorous molecules are adsorbed, and the plasma is applied to the harmful gas and decomposed in a state of being captured. Since the adsorbed malodorous substance is decomposed by reacting with radicals, the concentration of the adsorbed malodorous substance is reduced, so that the deodorizing performance of the collection filter 7b can be regenerated and the deodorizing life is extended. Even if an adsorbent, which is a kind of chemical agent having a chemical action, is applied to or added to the collecting filter to adsorb a malodorous substance, a collecting filter 7b having a long deodorizing life is obtained by a radical substance like activated carbon or zeolite. Is possible.

FIG. 7 shows the collection filter regeneration effect with respect to the distance between the reference electrode 5 and the counter electrode 6, and in the present embodiment, it is 15 mm according to the corresponding JIS voltage safety standard.
The above distance is required. On the other hand, when considering the regenerating effect, when the thickness is 25 mm or more, the regenerating effect becomes small and the life of deodorization is significantly reduced.
Is the upper limit.

The structure of the air cleaning filter 13 will be described with reference to FIG. In the figure, an air purifying filter 13, which is finer than the pre-filter, is arranged in the gap between the pre-filter 3 and the heat exchanger 10.

Next, the operation of the air cleaning filter 13 will be described. When the dust contained in the outside air is sucked into the air conditioner body 1 through the air suction port 2 and passes through the pre-filter 3 and then is not adsorbed by the collection filter 7a and passes through,
The air purifying filter 13 is caught by a fine mesh and is physically adsorbed. In addition, an electric field is generated in the charging unit 4 and the dust is charged, and when passing through without being adsorbed by the collection filter 7a, it is attracted and collected by the attractive force of the static electricity with the air cleaning filter 13.

A structure for attaching and detaching the charging unit 4 and the air conditioner body 1 will be described with reference to FIG. The claw is integrated with the air conditioner main body 1 and bends up and down by contact with another object. In the figure, the hole is provided on the lower surface of the charging unit 4, and the shaft is integrally provided on the side surface of the charging unit 4.

Next, the operation will be described with reference to FIGS. 6 (a) and 6 (b). At the time of mounting, as shown in FIG. 8, the charging part 4 is hooked on the air conditioner body 1 by the shaft, while the charging part 4 is pushed inward by the finger. Therefore, the claw is once deformed to the lower part by contact with the hole, and then the charging unit 4 and the air conditioner body 1 are fixed by the claw.

At the time of removal, as shown in FIG. 7, when the charging portion 4 is pulled forward by a finger, the above-mentioned claw is once deformed to the lower part due to the contact with the hole, so that the charging portion 4 is released from the above-mentioned nail and further by the finger. The shaft is released from the air conditioner body 1 by pulling the charging unit 4 in the upper right direction, and the removal of the charging unit 4 is completed.

As described above, the charging section 4 is attached to the air conditioner main body 1 with its axis, and the charging section 4 is pressed against the air conditioner main body 1 with the finger to complete the mounting, while the charging section 4 is pulled with the finger. Removal of the charging unit 4 is completed by pulling it away from the air conditioner body 1. Therefore, it has been shown that the charging unit 4 can be attached to and detached from the air conditioner body 1 by a simple operation of pushing or pulling the charging unit 4 with a finger.

Next, the collection filter 7b will be described.
In FIG. 1 and FIG. 2, the air sucked by the blower 11 is an air suction port 2, a prefilter 3, an air cleaning filter 13, a charging unit 4, a collecting filter 7b, a heat exchanger 10.
And blows out into the room from the air outlet 12. FIG. 9 shows the deodorizing performance characteristic with respect to the filter thickness of the collection filter 7 and the air volume characteristic at the same rotation speed of the blower 11 and shows data for selecting an appropriate thickness of the collection filter 7b. The lower limit of 5 mm in the thickness of the collection filter 7 is a dimension in which the deodorizing effect cannot be obtained unless the thickness of the passing air is more than this, while the upper limit of 20 mm requires a reduction in the air flow rate of about 5%. The air conditioner body 1 after the deodorization specification is secured.
It is selected for the purpose of suppressing the size of.

In order to prevent an electric shock at the charging section 4, the energization to the charging section 4 is stopped when the grill of the air suction opening 2 is opened by the air suction opening grill open / close detection switch 14.

Since the grill of the charging unit 4 has a thickness of about 3 mm, if the grill pitch is less than or equal to the thickness of the finger, the finger cannot enter the charging unit 4 and the reference can be directly applied. It was decided to satisfy a diameter of 12 mm, which is the thickness of a finger to be protected by electrical equipment, at a pitch such that the electrode 5 or the counter electrode 6 cannot be touched. This prevents inadvertent use of the air conditioner, care of the charging part, and electric shock at the charging part 4 when the filter is replaced.

Further, when the pre-filter 3 is not attached by the filter attachment detection switch 15, the energization of the charging portion 4 is stopped, so that the pre-filter 3 must always remove dust in the air before the air flow is charged. Since it reaches the portion 4, it prevents dust and the like from adhering to the charging portion 4 and causing abnormal discharge.

The air conditioner body 1 is installed in FIG.
The microcomputer 20 showing the input / output response operation as shown in FIG. When the number of dust particles in the indoor air is counted by the input from the indoor air contamination detection sensor 18 in FIG. 2 and the cumulative number of dust particles exceeds the specified value, or when the operating time of the air conditioner exceeds the specified time. , FIG. 2 or FIG.
The filter replacement indicator lamp 16 or the charging portion care indicator lamp 17 of 4 is displayed. Further, any one or more of the voltage value, the current value, and the resistance value of the charging section is measured, and if any of them exceeds the specified range, the energization to the charging section 4 is stopped as the output of the microcomputer 20. The charging portion maintenance indicator lamp 17 is displayed as shown in FIG. 14, for example.

Further, in the example of the remote controller for controlling the operation of the air conditioner main body 1 shown in FIG. 11, the external switch indicated by 21 in the figure controls the energization of the charging section 4 to generate plasma and generate a collecting filter. At the same time, it is possible to switch between the air-cleaning independent operation capable of efficiently deodorizing and the simultaneous operation of the air-cleaning operation and the cooling, dehumidifying or heating operation.

As described above, according to the present invention, since the collecting filter having the dust adsorbing surface on the surface along the air flow on the downstream side of the air flow of the charging section is provided, the initial pressure loss and dust are reduced. It is possible to reduce an increase in pressure loss due to adhesion of dust or the like.

Further, in the present invention, since the collecting filter contains at least one of activated carbon, a photocatalyst such as titanium oxide, zeolite, and an attachment agent having a deodorizing effect,
The deodorizing performance is improved by activated carbon, a photocatalyst such as titanium oxide, zeolite, and an adhering agent having a deodorizing effect in the collection filter
Furthermore, due to the effect of decomposing the odorous components adsorbed on the collection filter by the plasma generated from the charging section, it is possible to realize an air conditioner that extends the period in which the deodorizing performance of the collection filter is halved.

Further, in the present invention, an air conditioner in which the thickness of the collecting filter is set to about 5 mm to 20 mm and set to appropriate values in both performances of deodorization and air flow, and further the size expansion of the air conditioner is suppressed. Can be realized.

Further, in the present invention, the air cleaning filter for collecting dust and the like of the air by static electricity or physical adsorption is arranged on the windward side of the heat exchanger. Therefore, conventionally, the charged dust has contaminated the heat exchanger behind the flow, but in the present invention, the dust in the air is collected by the clean filter before it reaches the charging section, so the heat transfer of the heat exchanger Realize an air conditioner that prevents performance deterioration.

By restricting the distance between the electrodes of the charging portion, which is arranged with the distance between the reference electrode and the counter electrode being 25 mm or less in the charging portion, adhesion of dust and the like to the charging portion is suppressed and abnormal discharge of the charging portion is prevented. Achieve a better air conditioner.

Furthermore, the grill pitch is set to 1 in the charging section.
It has a structure of 2 mm or less so that the finger cannot directly touch the electrode, and the open / close detection mechanism of the air intake grill is provided, so careless when using an air conditioner, when cleaning the charging part, or when changing the charging part Achieve an air conditioner with electric shock prevention.

Since the charging part has a structure that can be easily removed from the main body of the air conditioner and can be washed with water, it is possible to provide an air conditioner that can be easily maintained by product users.

A detection mechanism that enables the opening and closing of the air inlet grill of the air conditioner and detects the opening and closing of the air inlet grill is provided. When the air inlet grill is open, energization to the charging unit is stopped. Since it is equipped with a mechanism, it realizes an air conditioner that prevents electric shock at the charging part and keeps it safe.

A detection mechanism for detecting the installed state of the prefilter or the air cleaning filter provided on the windward side of the charging section is provided, and a mechanism for stopping the energization of the blower when the prefilter or the air cleaning filter is not installed is provided. Since the air conditioner is provided, an air conditioner in which abnormal discharge due to adhesion of dust or the like to the charging portion is prevented is realized.

An external operation switch for energizing the charging portion is provided, and the energization is controlled to enable the air-cleaning independent operation by the switch, and the plasma is operated by the external operation switch during the cooling, dehumidifying or heating operation. To realize an air conditioner that can be operated at the same time as the air cleaning operation using the air conditioner and can also select the air cleaning independent operation using the plasma.

By providing a mechanism for counting the energization time of the air conditioner, a mechanism for counting the energization time of the charging section, a mechanism for detecting dirt on the air, or a mechanism for detecting the voltage value, current value or resistance value of the charging section. An air conditioner that prevents abnormal operation of the charging part by detecting dirt accumulated on the charging part is realized.

An air conditioner for maintaining the cleanliness of an air conditioner is provided, which is provided with a display mechanism for notifying maintenance / replacement time of the prefilter and the air cleaning filter.

It is possible to provide a clean air conditioner for the convenience of the product user who is provided with a display mechanism for notifying the time to clean or replace the charging part and to maintain the air cleaning performance for a long time.

When it is time to clean or replace the charging part, forcibly stopping the energization of the charging part can prevent abnormal discharge of the charging part, so that a safe air conditioner for product users can be provided. It is possible to provide.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an air purifying filter of the present invention, a charging section including a reference electrode and a counter electrode, and an air conditioner provided with a collecting filter on the downstream side of the charging section.

FIG. 2 is a front view showing an air cleaning filter of the present invention, a charging unit including a reference electrode and a counter electrode, and an air conditioner provided with a collecting filter on the downstream side of the charging unit.

FIG. 3 is a perspective view of a collection filter according to the present invention.

FIG. 4 is a detailed exploded view of the charging section in the present invention.

FIG. 5 is an explanatory diagram of adsorption of a malodorous component by plasma generation according to the present invention.

FIG. 6 (a) of the charging section of the present invention to the main body of the air conditioner
Diagram when attached and removed (b)

FIG. 7 is a diagram when the charging section of the present invention is removed from the air conditioner body.

FIG. 8 is a view of the charging section of the present invention when mounted on the air conditioner body.

FIG. 9 is a characteristic diagram with respect to the collection filter thickness of the present invention.

FIG. 10 is a characteristic diagram with respect to the distance between the reference electrode and the counter electrode of the present invention.

FIG. 11 is a diagram of an external operation switch according to the present invention.

FIG. 12 is an input / output diagram of the air pollution, display by air conditioner energization time, voltage, current, and resistance value of the charging section, and energization mechanism of the present invention.

FIG. 13 is a flow chart showing the display of the dirt of the air, the air conditioner energization time, the voltage, the current, and the resistance value of the charging section of the present invention, and the operation mechanism of the energization mechanism.

FIG. 14 is a view showing the replacement of the filter of the charging section of the present invention and the maintenance time display.

FIG. 15 is a cross-sectional view showing a conventional air conditioner including a charging unit including a reference electrode and a counter electrode, and a collecting filter including a dust collecting filter or a deodorizing filter on the downstream side of the charging unit.

FIG. 16 is a perspective view of a collection filter including a dust collection filter and a deodorizing filter disclosed in the related art.

[Explanation of symbols]

1 air conditioner body, 2 air suction port, 3 pre-filter, 4 charging part, 5 reference electrode, 6 counter electrode, 7 collecting filter, 8 dust collecting filter, 9 deodorizing filter, 10 heat exchanger, 11 blower, 1
2 air outlets, 13 air cleaning filters, 14
Air inlet grill open / closed detection switch, 15 filter mounting detection switch, 16 filter replacement indicator lamp,
17 charging section maintenance indicator lamp, 18 indoor air dirt detection sensor, 19 charging section grill, 20 charging section dirt condition detecting means, 21 external operation switch.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B03C 3/28 B03C 3/40 A 3/38 B 3/40 3/68 Z 3/74 D 3/68 3/82 3/74 F24F 1/00 371A 3/82 371Z F24F 1/00 B03C 3/14 A (72) Inventor Yoshihiro Tanabe 2-3-3 Marunouchi, Chiyoda-ku, Tokyo Sanryo Electric Co., Ltd. (72 ) Inventor Hidetoshi Nakagawa 2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo Sanryo Electric Co., Ltd. F term (reference) 3L051 BA01 BA05 BB02 BB06 BC05 4C080 AA05 BB02 BB05 CC01 HH05 JJ06 KK08 LL10 MM02 MM04 MM05 QQ4 QA20 4D03 BB12 BC06 BC11 CA01 CA18 CA19 CA20 EA08 EA11 EA22 EA24 EA27

Claims (14)

[Claims] 1. An air conditioner that heats or cools air taken in from a room by a heat exchanger and blows it out into a room. The air conditioner comprises a reference electrode and a counter electrode for applying plus or minus to the reference electrode. A charging filter provided on the upstream side of the heat exchanger is provided with a collecting filter having a dust and odor adsorbing surface on a surface along the air flow on the downstream side of the air flow in the charging section. Air conditioner. 2. An air conditioner that heats or cools air sucked from a room by a heat exchanger and blows the air into the room, the air conditioner comprising a reference electrode and a counter electrode for applying plus or minus to the reference electrode. While generating a plasma by applying a pulse voltage to the charging portion to the charging portion provided on the upstream side of the heat exchanger, on the downstream side of the air flow at the charging portion, activated carbon, a photocatalyst such as titanium oxide, zeolite and At least one of the deodorizing adhesives
An air conditioner characterized by having a collecting filter containing one of them. 3. An air conditioner that heats or cools air taken in from a room by a heat exchanger and blows it out into a room, the air conditioner comprising a reference electrode and a counter electrode for applying plus or minus to the reference electrode. The thickness of the collecting filter provided on the downstream side of the air flow in the charging section is set to about 5 mm to 20 mm with respect to the charging section provided on the upstream side of the heat exchanger. The air conditioner according to any one of 1. 4. In an air conditioner that heats or cools air sucked from the room by a heat exchanger and blows the air into the room, an air purifying filter that collects dust and odor of air by static electricity or physical adsorption is used as the heat exchanger. The air conditioner according to any one of claims 1 to 3, wherein the air conditioner is arranged on the upstream side of the air flow. 5. An air conditioner that heats or cools air taken in from a room by a heat exchanger and blows it out into a room. The air conditioner comprises a reference electrode and a counter electrode for applying plus or minus to the reference electrode. The air conditioner according to any one of claims 1 to 4, wherein a distance between the reference electrode and the counter electrode in the charging portion is 25 mm or less with respect to the charging portion provided on the upstream side of the heat exchanger. Machine. 6. An air conditioner that heats or cools air taken in from a room by a heat exchanger and blows it out into a room. The air conditioner comprises a reference electrode and a counter electrode for applying plus or minus to the reference electrode. The air conditioner according to any one of claims 1 to 5, wherein a pitch of the grill covering the charging portion is 12 mm or less with respect to the charging portion provided on the upstream side of the heat exchanger. 7. An air conditioner that heats or cools air taken in from a room with a heat exchanger and blows it out into a room, the air conditioner comprising a reference electrode and a counter electrode for applying plus or minus to the reference electrode. An air conditioner having a structure in which the charging portion provided on the upstream side of the heat exchanger can be easily detached from the air conditioner body by pushing or pulling. 8. An air conditioner that heats or cools air taken in from a room by a heat exchanger and blows it out into a room, the air conditioner comprising a reference electrode and a counter electrode for applying plus or minus to the reference electrode. A detection mechanism for detecting the opening and closing of the air intake grill of the air conditioner is provided for the charging section provided on the upstream side of the heat exchanger, and energization to the charging section is stopped when the air intake grill is open. The air conditioner according to claim 1, further comprising a mechanism. 9. An air conditioner which heats or cools air taken in from a room by a heat exchanger and blows it out into a room, the air conditioner comprising a reference electrode and a counter electrode for applying plus or minus to the reference electrode. For the charging part provided on the upstream side of the heat exchanger, a detection mechanism is installed to detect the installed state of the prefilter or air cleaning filter installed on the windward side of the charging part, and the prefilter or air cleaning filter is installed. An air conditioner equipped with a mechanism that stops the energization of the blower when it is not present. 10. An air conditioner that heats or cools air sucked from a room by a heat exchanger and blows the air into the room, wherein the air flow is composed of a reference electrode and a counter electrode for applying plus or minus to the reference electrode. It has a charging part provided on the upstream side of the heat exchanger, an external operation switch for energizing the charging part is provided, and an air-cleaning independent operation is possible with the external operation switch, and cooling, dehumidification or heating operation is performed. An air conditioner that can be operated at the same time as an air cleaning operation using an external operation switch when 11. An air conditioner that heats or cools air taken in from a room by a heat exchanger and blows it out into a room, which comprises a reference electrode and a counter electrode for applying a plus or a minus to the reference electrode, wherein the air flow is A mechanism that has a charging unit provided on the upstream side of the heat exchanger and that counts the energization time of the air conditioner, the mechanism that counts the energization time of the charging unit, the air contamination detection mechanism, or the voltage value or current of the charging unit. An air conditioner that is equipped with a mechanism for detecting a resistance value or a resistance value to detect dirt accumulated on a charged portion. 12. An air conditioner that heats or cools air taken in from a room with a heat exchanger and blows it out into a room, which comprises a reference electrode and a counter electrode for applying a plus or a minus to the reference electrode, An air conditioner having a charging unit provided on the upstream side of a heat exchanger and having a display mechanism for notifying maintenance or replacement time of a prefilter and an air cleaning filter. 13. An air conditioner that heats or cools air taken in from a room with a heat exchanger and blows it out into a room, the air conditioner comprising a reference electrode and a counter electrode for applying plus or minus to the reference electrode. An air conditioner having a charging section provided on the upstream side of a heat exchanger and having a display mechanism for notifying maintenance or replacement time of the charging section. 14. An air conditioner which heats or cools air sucked from a room by a heat exchanger and blows the air into the room, the air conditioner comprising a reference electrode and a counter electrode for applying a plus or a minus to the reference electrode. An air conditioner that has a charging section provided on the upstream side of a heat exchanger and forcibly stops energization of the charging section when it is time to clean or replace the charging section.