JPS61257252A - Air conditioner - Google Patents

Abstract

PURPOSE:To increase dust collection efficiency and to make an air conditioner excellent in design properties by making the air passage part of a dust collection unit set in an upstream from a heat exchanger nearly parallel to the air flow direction wherein an anode body is joined to a cathode plate and making the thickness direction of the main body orthogonal with the direction of an ionic wind. CONSTITUTION:In relation to an air conditioner collecting the dust while causing the wind by utilizing a potential difference, an air passage 2 is formed toward an underside from the topside of the inside of a main body 1 and a suction port 2a is opened in the topside wall of the main body 1 and a discharge port 2b is opened in the under part of a front wall and air is discharged to an space formed in the inside of a main body frame 1A which is partitioned by a heat insulating member 3 via a coil 4 for the heat exchange and a blowing fan 5. A face 6 provided with the cathode plate and the anode plate is formed in an upper space. In such a way, the passage part of the upstream side from the heat exchanger set in the following air passage can be made nearly parallel to the front face of the main body which is nearly parallel for the air flow direction joining the anode body to the cathode plate and the dust collection is efficient and the space is made broad.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an air conditioner equipped with a dust collection function, and particularly to an air conditioner that collects dust while generating wind using a potential difference.

(Prior art) Generally, air conditioners and dust collectors are commercially available separately, and each is equipped with a blower fan, a drive motor, a dust collection filter, etc. However, for example, some air conditioners for commercial use Some air conditioners have a dust collector attached to the suction part of the air conditioner, integrating the two, as seen in the Air Conditioner. In this case,
The dust collector protrudes from the front of the air conditioner body by the thickness thereof, or the thickness of the entire air conditioner body becomes large, which does not meet the recent trend of miniaturization of equipment and is inferior in design. Furthermore, if a set of filters is used as a dust collector, the ventilation resistance increases in proportion to the amount of dust collected by the filter, which is disadvantageous in maintaining the performance of the air conditioner.

Therefore, the present inventor has already proposed an electric dust collection system with extremely low ventilation resistance (Japanese Patent Application No. 59-1
04757), that is, a high voltage is applied to a pair of cathode plates and an anode body to positively charge dust in the air, thereby causing the dust to adhere to the cathode plate and collect the dust. be.

(Problems to be Solved by the Invention) By the way, the distance from the anode body as the charging part to the downstream end of the cathode plate as the dust collection part (hereinafter referred to as run-up distance) usually needs to be at least 50 to 60 mm. If you want to obtain high dust collection efficiency, about 100 mm is necessary. Therefore, when such an electric dust collector is attached to the front of the air conditioner main body, the thickness of the main body increases, which is disadvantageous in terms of space, and the design is also poor.

The present invention has been made in view of the above-mentioned conventional situation, and it integrates the above-mentioned electric dust collector into an air conditioner, which secures the run-up distance without increasing the thickness of the air conditioner body, and thereby improves the dust collection. To provide an air conditioner with high dust efficiency while avoiding increasing the size of the main body, and also to provide an air conditioner with excellent design that looks good especially from the front.

Means for Solving the Problems and Their Effects> For this reason, the present invention provides an air passageway upstream of a heat exchanger that is substantially parallel to the air flow direction connecting the anode body and the cathode plate. The part is formed approximately parallel to the front surface of the air conditioner main body.

As a result, a sufficient run-up distance can be secured, so high dust collection efficiency can be obtained without increasing the thickness of the main body or making it larger, and since no extra thickness is required, the front of the main body protrudes. You can create a good-looking air conditioner without any problems.

<Example> Hereinafter, an example of the present invention will be described in detail based on the drawings.

A thin air conditioner main body 1 that is attached to a wall or the like in a room has an air passage 2 formed so that the air inside the main body 1 flows from the upper side to the lower side as shown by the arrow in FIG. 1, for example. ing. That is, an inlet (air inlet) 2 is provided on the upper wall of the main body 1.
a, and a discharge port (air outlet) 2b at the bottom of the front wall.
is opened to form an air passage 2 approximately parallel to the vertical longitudinal direction of the main body 1, and the air flowing in through the suction port 2a is
The configuration is such that the air is discharged from the outlet 2b through a heat exchange coil 4 as a heat exchanger and a blower fan 5, which are disposed in a space partitioned by a heat insulating member 3 and formed within the main body frame IA.

Here, the main body frame IA is a box with an open front, and the front is covered by a face 6 (6a, 6b). The face 6 includes a pair of cathode plates and an anode body, which will be described later, inside and has an upper space (an upper wall of the main body 1).
The intake port 2a is formed in the air passage 2, a face component member 6a is provided which also functions as an inlet of the air passage 2, and is detachably attached to the upper part of the front surface of the main body 1, and a discharge port 2b is provided at the lower part of the front surface of the main body 1. and a face component 6b that is attached to the main body frame IA with a gap of a predetermined width between it and the coil 4. The gap between the face component 6b and the coil 4 is formed to have approximately the same width as the air passage 2 formed by the face component 6a, and similarly functions as the air passage 2.

Incidentally, the coil 4 is installed with its direction of arrangement being somewhat inclined as shown in the figure. This makes the width of the heat exchanger particularly small in the thickness direction.

Further, the dust collection unit installed in the face component 6a will be described in detail with reference to FIG. 2 as well. The face component 6a includes a pair of cathode plates 7 that face each other in parallel with the wall of the air passage 2, a counter-same electrode plate 8 between the opposing cathode plates 7, and an inlet from the cathode plate 7. An ionization wire (anode body) 9 for positively ionizing dust in the air is disposed on the side 2a.

Further, as shown in FIG. 1, a transformer 10 as a high voltage applying means for generating a DC high voltage from an AC power source and applying it between the cathode plate 7 and the ionization wire 9 is provided in the main body frame IA. , the transformer 10. Cathode plate7. The counter cathode 8 and the ionization line 9 constitute a dust collection unit.

Next, the effect will be explained.

Now, for example, the voltage of the cathode plate 7 is -7 kV, and the ionization line 9 is
When the counter cathode 8 is grounded (Ov), the area around the ionized wire 9 becomes plasma with a potential difference of 20 kV with the cathode plate 7, and the anions are collided and absorbed by the ionized wire 9, and the positive Ions are connected to a pair of cathodes 1Ii7
Go straight between. At this time, due to the viscosity of the air, the surrounding air is pulled together, and the pair of cathode plates 7 are pulled from the ionization wire 9.
becomes the wind in the direction of the resultant vector. That is, the arrow (
As shown in FIG. 1), the air flows in the direction in which air is drawn into the main body 1 from the upper wall of the main body 1 of the air conditioner. Note that at this time, if the ventilation fan 5 is turned on and used together with the dust collection unit, the amount of ventilation can of course be further increased.

On the other hand, dust particles are also cationized by the ionization beam 9 or collide with ionized air cations to become cations (at this time, large dust particles become dielectric). Therefore, when the dust enters the pair of negatively charged cathode plates 7, it is attracted to the cathode plates 7. In addition, the dust mainly in the central portion that tries to pass through without being attracted is attracted by being pressed against the cathode plate 7 by the plane electric field between the opposing cathode 8 and the cathode plate 7 with an applied voltage of -7 kV. As a result, the dust is collected on the cathode plate 7.

In this way, the dust and air positively charged by the ionization wire 9 are attracted to the cathode plate 7, and the dust is attracted to the cathode plate 7.
At the same time, air flows between the cathode plates 7 so as to be particularly attracted by the dust, and is discharged to the side opposite to the ionization line 9, thereby continuously creating a ventilation state.

As a result, indoor air flows through the pair of cathode plates 7 and 7 along the air passage 2 through the inlet 2a opened in the upper wall of the air conditioner main body l.
It passes through the heat exchange coil 4 and the blowing fan 5, and then is discharged again from the discharge port 2b, and this circulation is repeated. At this time, ionized dust in the passing air is adsorbed and collected by the pair of cathode plates 7, thereby purifying the air.

In particular, in the present invention, the air passage 2 on the upstream side of the heat exchange coil 4 is arranged in a direction perpendicular to the thickness direction of the main body 1, in other words, in a direction perpendicular to the thickness direction of the main body 1, so that the wind direction of the ion wind is in the longitudinal direction. Since it is formed so that it is substantially parallel to , a sufficient run-up distance (for example, about 100 mm) can be secured. For this reason,
A dust collection unit with high dust collection capacity can be integrally attached to the air conditioner body 1 without increasing the size of the body 1.

In addition, since the air passage 2 is formed in the direction perpendicular to the thickness direction of the main body, even if a dust collection unit with a long run-up distance is installed, the thickness of the main body 1 will not be increased more than necessary, resulting in a neat and tidy structure. An air conditioner with good appearance and excellent design can be created.

In addition, since the intake port 2a is provided on the top surface of the main body 1 instead of on the front surface, the front surface can be clearly seen by the user. It is also possible to further improve the design of the air conditioner by adding illustrations or the like to this blank board.

Furthermore, in this embodiment, since the face component 6a is configured to be freely attached and detached, cleaning performance is also excellent.

In this embodiment, the suction port 2a is provided on the upper wall surface of the main body 1, but the invention is not limited to this, and it may be provided on either the left or right side wall surface or the lower wall surface.

Further, although the discharge port 2b is formed at the lower part of the face 6, the present invention is not limited thereto, and may be formed, for example, at the lower wall surface of the main body 1.

Furthermore, it is clear that a wire mesh may be attached to the suction port 2a.

In addition, although the ionized wire 9 was used as the anode body in this embodiment, it is not necessarily limited to this, and any material that can discharge by applying a voltage is sufficient, for example, a needle or plate with a sharp tip can be used. good.

Further, although the ionized wire 9 is arranged in the depth direction with respect to the main body 1, it may be arranged in the width direction, and in this case, the cathode plate 7 and the counter electrode plate 8 are also placed in the same direction.

<Effects of the Invention> As explained above, according to the present invention, in an air conditioner of a system that removes dust while generating wind using a potential difference, the air passage portion where the dust collection unit is disposed upstream of the heat exchanger. is formed so that it is approximately parallel to the direction of air flow connecting the anode body and the cathode plate, and the direction of the ion wind is perpendicular to the thickness direction of the body. To provide an air conditioner that can secure a sufficient run-up distance without causing any adverse effects, has high dust collection efficiency, is advantageous in terms of space, and is excellent in design.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional configuration diagram of an air conditioner according to the present invention, and FIG. 2 is a diagram illustrating a dust collection unit applied to the same air conditioner. 1...Air conditioner body 2...Air passage 2a...
・Suction port 4... Heat exchange coil 7... Cathode plate 8... Opposing cathode 9... Ionization wire 10.
...Trans patent applicant Misawa Homes Co., Ltd. agent Patent attorney Fujio Sasashima Figure 1

Claims (1)

[Claims] An anode body that ionizes dust-containing air is placed in the air passage formed in the air conditioner body upstream of the heat exchanger, and a pair of cathode plates that are disposed opposite to each other in parallel on the downstream side of the anode body. ,
In an air conditioner equipped with a dust collection unit comprising the pair of cathode plates and a high voltage application means for applying a high voltage to the anode body, the air flow direction connecting the anode body and the cathode plate is in the direction of the air conditioner body. An air conditioner characterized in that the dust collection unit is arranged in a direction perpendicular to the thickness direction.