JPH1172240A - Air conditioner or air purifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the danger of injury or electric shock by a needle type radiation electrode. SOLUTION: An air conditioner or an air purifier is formed of a main body casing and a front cover. An ion generating unit is provided near an outlet port, provided on the surface of the casing made of a resin. Holes 19 are provided on the casing or a lid body 17, attached to the casing, and a radiation electrode 20 for generating negative ion is positioned so as to be opposed to the internal surface of the holes 19 and is grounded by a spring type conduction piece 23, contacted to the casing body or the lid body 17 around the holes 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to incorporating an ion generator for generating negative ions into an air conditioner or an air purifier.

[0002]

2. Description of the Related Art It has been known that negative ions have a good effect on the human body, and they are used for improving physiological effects and for medical therapy. Further, as shown in Japanese Patent Publication No. 7-23777 as a conventional example, a needle-shaped radiating electrode for generating ions is provided on the surface of an air conditioner to generate negative ions and positive ions alternately, thereby measuring the amount of negative ions in the room. It was adjusted by a sensor.

[0003]

In this conventional example, a needle-shaped radiation electrode for generating ions is exposed on the surface of the housing, so that there is a danger that a child will play a hand by mischief. Since the radiation electrode has a potential of -8 kv, there is a danger of electric shock if it comes into contact.

[0004]

The present invention focuses on this point and solves the above-mentioned drawbacks. In particular, the present invention is characterized in that an ion generating portion is provided near an air outlet provided on the surface of a resin housing, and The generating unit is provided with a hole in the housing or a lid attached to the housing, and a radiation electrode for generating negative ions is positioned facing an inner surface of the hole, and the housing or the lid around the hole is provided. Are grounded by a spring-like conductive piece that comes into contact with the inner surface.

[0005]

The high voltage generating circuit 31 for boosting a commercial power supply of AC 100 V, 50 Hz or 60 Hz to DC of about 8 kV has a radiation electrode 20 made of a pointed aluminum plate or a needle. The operation of the ion generator 16 is controlled by the control device 25 by the relay 33 provided between the high voltage generating circuit 32 and the power supply.
The negative ions are protected by the holes 7 and the negative ions are emitted into the room from the holes 19, but the operation of the ion generator 16 is good at the beginning of operation, but the holes 19 have a gap of about 3 mm to prevent electric shock and injury. In order to prevent the lid 17 from taking a negative charge after a lapse of time and a relative potential difference from the radiation electrode 20 to become small and a negative ion to be hardly generated, a hole 19 is formed. The provision of the spring-like conductive pieces 23 on the inner surface of the nearby lid 17 can easily and stably generate negative ions, and at the same time, prevent electric shock and injury to the fingertips.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes an indoor unit of a separate type air conditioner, wherein a casing is formed by a main body casing 2 and a front cover 3 at the front. An open panel 5 having a horizontally elongated slit-shaped suction port 4 is provided from the center of the front cover 3 to the upper part thereof. A horizontally long outlet 6 is provided on the bottom surface of the front cover 3 from below the suction port 4, and an upper suction port 7 is provided on the upper surface of the front cover 3 in order to compensate for an opening area short of the suction port 4.

A fin tube type heat exchanger 8 is provided inside the suction ports 4 and 7 which is horizontally long and bent in multiple stages in the vertical direction.
A cross-flow fan 9 for blowing air is disposed at the rear of the heat exchanger 8. A drain unit 10 integrally formed of a resin foam material is provided below the heat exchanger 8 to receive dew water and blow air from a fan 9 to an outlet 6.
It also functions as an air guide that leads to the air.

Reference numeral 11 denotes an electrostatic air cleaning unit of about +2.
A discharge counter electrode 12 connected to a kv DC power supply and having a large number of holes 12a formed in an aluminum plate, and a needle-like electrode 13a having a needle tip positioned substantially at the center of the hole 12a and having a height of about -2k.
v. a discharge electrode 13 connected to a DC power supply, and invisible dust or cigarette smoke in the air is charged by the discharge electrode 13 and captured by the discharge counter electrode 12; It is attached to the upper space between the container 8 and the front panel 3.

A mesh-shaped pre-filter 14 made of resin is provided between the suction port 4 and the heat exchanger 8 or between the suction port 4 and the air cleaning unit 11 to capture relatively large dust in the air. On the right side of the outlet 6, there is provided a display unit 15 for displaying the operation state of the air conditioner by a lamp or the like, and further on the right side of the display unit 15, an ion generation unit 16 is provided.
The display section 15 displays a display hole 18 formed in the cover 17 of the front panel 3 by means of a lamp or the like positioned opposite to the back of the cover 17 to indicate operation stop or the like. The front cover 3 is formed of a resin such as polystyrene. The ion generator 16 is opposed to the back surface of the hole 19 provided in the lid 17 and has a radiation electrode 20 for generating ions.
Is positioned, and negative ions are emitted from the hole 19, and the released ions are diffused into the room by the air blown from the outlet 6.

The radiating electrode 20 is needle-shaped and generates a negative ion when a potential of about -8 kV is applied. If the tip of the needle is accidentally touched with a fingertip, the fingertip is injured and the fingertip is injured. Although there is a danger, each of the holes 19 on the front face is provided in a size that does not allow a fingertip to enter, so that the fingertip does not contact the radiation electrode 20.

The hole 19 is not required to be inserted by a fingertip, and may be provided with many slit-shaped long holes, or a number of circular small holes, such as a small hole. The radiation electrode 20 is a high-pressure unit 2 for generating ions.
Three holes are provided from 2 to the hole 19.

Reference numeral 23 denotes a conductive piece which contacts the back surface of the lid 17 in the vicinity of the hole 19, and is an electrical box for accommodating electric parts such as the main body casing 2 and a printed circuit board for grounding the inside of the lid 17. When the cover 17 is fixed to the front cover 3 and attached to the front cover 3, the cover 17 can be easily attached due to its spring property and pressed against the inner surface of the cover 17 after the attachment, so that the contact can be surely made. The other end of the conductive piece 23 has a male terminal shape and is connected to a ground terminal (not shown) in the electrical component box 24 by a lead wire or the like.
Or the heat exchanger 8 or the like to make the potential of the conductive piece 23 zero.

When the lid 17 is not grounded, the entire lid 17 takes a negative charge as the operation time elapses, and the relative potential difference between the lid 17 and the radiation electrode 20 becomes smaller, so that negative ions are less likely to be generated. Since the lid 17 is made of a non-conductive resin material, the negative ions generated at the radiation electrode 20 can be emitted into the room through the relatively small holes 19. Is formed of a grounded conductive material, the charge is deprived by the lid 17 and negative ions cannot pass through the hole 19.

Referring to the block diagram of the control circuit based on FIG. 6, a control unit 25 such as a microcomputer for operating and stopping the air conditioner and controlling the ion generator 16 is a wireless remote controller (FIG. 6). (Not shown), an operation unit 26, an ion sensor 27, a temperature sensor 28, a humidity sensor 29 and the like are connected to the input side, and the output side is connected to the display unit 15
And the power supply to the fan motor 30, the control unit 31 of the outdoor unit, and the high voltage generation circuit 32 of the ion generator 16 are turned on.
It is connected to a relay 33 that turns off and a relay 36 that turns on and off the power supply to the high-pressure unit 35 of the air cleaning device 34.

The display unit 15 includes an ion lamp 39 in which a number of diodes are arranged in a bar graph in addition to an operation stop lamp 37 and a timer lamp 38.
The magnitude of the current ion amount measured at 7 is displayed in an easy-to-understand manner for the user. In the present embodiment, the ion lamp 39 has five horizontally arranged diodes arranged in a straight line.
7 indicates the presence of about 2,000 ions / cc in the vicinity.
This indicates the presence of 000 ions / cc.

The ion generating section 16 has an alternating current of 100 v50.
The radiating electrode 20 made of a pointed aluminum plate or a needle is connected to the high voltage generating circuit 31 for boosting the commercial power of Hz or 60 Hz to DC of about 8 kv so that the radiating electrode 20 has a potential of about -8 kv. The operation of the ion generator 16 is controlled by the controller 25 by the relay 33 provided between the high voltage generating circuit 32 and the power supply. The radiation electrode 20 is protected by the lid 17 and Although the ions are emitted into the room, the initial stage of the operation of the ion generator 16 is good, but the hole 19 has only a gap of about 3 mm to prevent electric shock and injury. In order to prevent the entire lid 17 from being negatively charged and the relative potential difference from the radiation electrode 20 being reduced to make it difficult to generate negative ions, a hole 19 is formed.
By providing the spring-like conductive piece 23 on the inner surface of the lid 17 near the above, negative ions can be stably generated, and at the same time, electric shock and injury to the fingertip can be prevented.

The air cleaning device 34 has an AC voltage of 100 V.
Power supply of about +2 kv and about -2 kv by high voltage unit 35
And is supplied to the air cleaning unit 11 and is operated and stopped by the control device 25 by the relay 36 provided between the high-pressure unit 35 and a power supply.

[0018]

As described above, according to the present invention, an ion generator is provided in the vicinity of an air outlet provided on the surface of a resin housing, and the ion generator is attached to the housing or a lid attached to the housing. A hole is provided, and a radiation electrode for generating negative ions is located opposite the inner surface of the hole to ground the inner surface of the housing or lid around the hole, thereby preventing electric shock and injury to the fingertip. Things. Also, since the grounding is performed by the spring-like conductive piece that contacts the inner surface of the housing or the lid, negative ions are generated stably.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a schematic sectional view of the same.

FIG. 3 is a schematic sectional view of the air cleaning unit.

FIG. 4 is a sectional view of the main part.

FIG. 5 is a front view of the main part.

FIG. 6 is a block diagram of the control circuit.

[Explanation of symbols]

 Reference Signs List 4 inlet 6 outlet 9 fan 15 display 16 ion generator 20 radiation electrode 23 conductive piece

Claims (2)

[Claims] An ion generator is provided in the vicinity of an air outlet provided on the surface of a resin housing, wherein the ion generator has a hole in the housing or a lid attached to the housing and an inner surface of the hole. An air conditioner or an air purifier characterized in that a radiation electrode for generating negative ions is positioned opposite to the above, and an inner surface of a housing or a lid around the hole is grounded. 2. The grounding device according to claim 1, wherein the conductive member is in contact with the inner surface of the housing or the lid.
An air conditioner or air purifier as described.