JP2003074952A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner capable of eliminating the generation of an electric accident and obtaining the improvement of reliability by surely preventing a cleaning agent from flowing from the mounting unit of a sensor into an electric parts assembly integrated continuously with the mounting unit. SOLUTION: The air conditioner is equipped with a unit main body 1, receiving a heat exchanger 9 therein and provided with a fore suction port 7 opposed to the heat exchanger, and a connected assembly 22, attached to the lower part of the fore suction port for the unit main body and connected integrally with an electric parts assembly 20 provided with an indicating unit 19 or the like and a sensor mounting unit 21 equipped with a room temperature sensor 35 or the like, while the connected assembly is continuously provided at the side end of the sensor mounting unit at the outside of the side end unit of the electric parts assembly and the electric parts assembly as well as the sensor mounting unit are provided in parallel while deviating the positions of the units in the horizontal direction of them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner composed of an indoor unit and an outdoor unit, and more particularly, to an electric component collecting unit equipped with an indoor unit and provided with a display unit and a room temperature sensor. The present invention relates to an improvement of a connecting assembly in which the provided sensor mounting portions are integrally connected.

[0002]

2. Description of the Related Art An air conditioner composed of an indoor unit and an outdoor unit is widely used. In the indoor unit, a main body is provided with a suction port and a blowout port, and a heat exchanger, a blower and the like are housed inside the main unit.

The suction port is opened on the front surface of the main body and is provided so as to face the heat exchanger. At the lower part of the main body of the suction port, a connecting assembly in which the electric component collecting portion and the sensor mounting portion are integrated is provided.

FIG. 5 is a perspective view of a conventional connecting assembly A. As shown in FIG.

This connection assembly A is an electric component base b.
The sensor base c is connected to one side of the electric component base. The electric component base b and the sensor base c are connected to each other via a wrap portion d where the upper end corners of the electric component base b in the figure wrap.

The electric component base b is provided with a control board e which occupies most of the area of the electric component base b, and the electric parts constituting the display section f, the light receiving section g, the forced operation switch section h, etc. Is installed.

[0007] The display section f is provided with an infrared signal transmitted from a wireless remote controller (hereinafter, referred to as a remote controller) attached to the outside of the indoor unit, a command to start and stop the operation, a room temperature set by the user, and the like. Displays the air volume, wind direction, and other settings related to operation.

The light receiving unit g receives an infrared signal transmitted from a remote controller and sends a reception signal to a control unit (not shown) for display on the display unit f. The forced operation switch section h is for forcibly controlling the operation in a state where the remote control cannot be used.

From the state where the display part f, the light receiving part g, and the forced operation switch part h are attached to the electric part base b, a necessary part is covered with a cover not shown here to form the electric part collecting part B. .

Further, a room temperature sensor i for detecting a room temperature and a humidity sensor j for detecting a room temperature are attached to the sensor base c, which guides a part of the room air sucked from the suction port. The sensor mounting portion C is configured.

[0011]

By the way, over a long period of use, dust adheres to the heat exchanger and solidifies to cause a decrease in heat exchange efficiency. Therefore, a work is performed in which a part of the main body panel is removed to expose the suction port and the heat exchanger, and a cleaning detergent is applied to the heat exchanger to remove the attached dust.

As described above, on the front surface of the main body on the lower side of the suction port, the connecting assembly A in which the electric component collecting portion B and the sensor mounting portion C are integrated is provided, and the sensor mounting portion C is provided with the indoor air. Is designed to guide you.

That is, a part of the cleaning detergent may be applied to the sensor mounting portion C as well. Then, the cleaning detergent flows down to the lower side of the sensor mounting portion C, and the sensor base c
There is a risk that it will flow into the electric component collecting portion B via the lap portion d between the electric component base b and the electric component base b.

If the cleaning detergent may flow into the control board e attached to the electric part base b even if the amount is very small, the contacts are short-circuited not only in the control board e but also in the display section f and other electric parts. However, the occurrence of electrical accidents is unavoidable.

On the other hand, the work of applying the cleaning detergent to the heat exchanger is not only performed by a specialist, but may be performed by the user by purchasing a commercially available detergent. At this time, even if a cleaning detergent is applied to the sensor mounting portion C, a structure that never flows into the electric component collecting portion B must be adopted.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a cleaning detergent applied to a heat exchanger to the sensor mounting portion even if the cleaning detergent flows to the sensor mounting portion. It is intended to provide an air conditioner that is configured to reliably prevent the electric component from flowing into an electrical component collecting portion that is integrally provided with the air conditioner, eliminates the occurrence of an electrical accident, and can improve reliability. .

[0017]

In order to satisfy the above object, as a first means of the present invention, a heat exchanger is housed inside,
An air conditioner main body having a suction port facing the heat exchanger, and an electric component collecting part having a display part and the like, which is attached to a lower part of the suction port of the air conditioner main body and a room temperature sensor, etc. The sensor assembly includes a connecting assembly integrally connected to the sensor mounting portion, wherein the connecting assembly continuously connects the side end portion of the sensor mounting portion to the outside of the side end portion of the electrical component collecting portion to provide electrical connection. The component collecting portion and the sensor mounting portion are arranged side by side in a laterally offset manner.

In the second means, the air conditioner main body covers at least the upper part of the electrical component collecting portion along the lower end edge of the suction port, and receives the fluid dropped from the heat exchanger. Equipped with parts.

By adopting the means for solving such a problem, even if the cleaning detergent applied to the heat exchanger may flow to the sensor mounting portion, the cleaning detergent is continuously connected to the sensor mounting portion. It surely prevents it from flowing into the installed electrical parts collection, eliminating the occurrence of electrical accidents,
Improved reliability can be obtained.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the exterior of an indoor unit that constitutes an air conditioner. The unit main body (air conditioner main body) 1 is composed of a front panel 1a and a rear plate 1b, has a laterally long shape whose width direction is extremely long in the vertical direction, and the front panel 1a is curved toward the front side. Is protruding.

The front panel 1a is provided with a movable panel 2 in a part thereof. The movable panel 2 is supported by an opening / closing drive mechanism (not shown) and is flush with the front panel 1a when the operation is stopped, but is controlled to project to the front side when the operation is performed.

The front panel 1 is provided below the movable panel 2.
A decorative plate 3 made of a translucent material forming a part of a is provided across the width direction of the unit main body 1. Further, on the lower side of the decorative plate 3, two blowout louvers 4a and 4b are provided in parallel. These outlet louvers 4a and 4b open and close outlets (not shown) and set the outlet direction of heat exchange air according to operating conditions.

FIG. 2 shows the movable panel 2 and the decorative plate 3.
FIG. 3 is a perspective view showing the inside of the indoor unit with the unit removed from the unit main body 1. An upper suction port 6 into which the grill 5 is fitted is opened at the upper part of the unit body 1. A front suction port 7 is opened in a portion of the unit body 1 where the movable panel 2 is opened and closed.

The electrostatic precipitator 8 can be seen almost in the center of the front suction port 7. This electrostatic precipitator 8 is composed of a charging side electrode and a dust collecting side electrode, and the charging side electrode gives an electric charge to dust in the air, and then attracts the charged dust at the dust collecting side electrode, It is designed to remove dust.

The electric dust collector 8 is arranged on the front side of the heat exchanger 9, and a part of the heat exchanger 9 can be seen in the lower portion of the electric dust collector 8 and the left side portion in the drawing. This heat exchanger 9
Is composed of a front heat exchanger portion and a rear heat exchanger portion, and has a substantially inverted V shape in a side view. What can be seen in the figure is a part of the front side heat exchanger part, and the rear side heat exchanger part is hidden by the front side heat exchanger part and the electrostatic precipitator 8 and cannot be seen at all.

A two-way valve cover 10 is arranged in parallel on the right side of the electric dust collector 8 in the figure. The two-way valve cover 10 is for covering the two-way valve provided in the connection pipe between the front heat exchanger portion and the rear heat exchanger portion that constitute the heat exchanger 9.

An electric parts box 11 for accommodating electric parts is provided at a further lateral portion of the two-way valve cover 10.
The electrical components in the electrical component box 11 are components for controlling the electrostatic precipitator 8 and components for driving and controlling the blower arranged between the front and rear heat exchanger parts of the heat exchanger 9.

On the left side of the electric dust collector 8 of the front suction port 7, a partition bar 12 is installed over the upper and lower parts. A short circuit opening 13 whose details are omitted is provided below the front suction port 7 on the left side of the partition bar 12 in the drawing.

Front panel 1 facing the lower part of the electrostatic precipitator 8
The portion a is formed integrally with the back surface by bending and is referred to as a receiving wall portion 14. The leading edge of the receiving wall portion 14 extends to a portion very close to the heat exchanger 9.

The receiving wall portion 14 on the right side of the partition bar 12
A sensor opening 15 is provided on the front surface for introducing and guiding indoor air to a sensor mounting portion described later. A push button 17 of a forced operation switch section 16 is provided in a protruding manner on the front panel 1a portion on the lower side of the sensor opening 15, and a light receiving section 18 and a display section 19 are exposed side by side on the lower side of the push button 17. is doing.

The push button 17 of the forced operation switch unit 16 is provided at a position covered by the movable panel 2, and the light receiving unit 18 and the display unit 19 are provided at a position covered by the decorative plate 3. .

The forced operation switch section 16 is for forcibly controlling the operation when the remote control is in an unusable state. The light receiving unit 18 receives an infrared signal transmitted from a remote controller, sends a reception signal to a control unit (not shown), and relates to display on the display unit 19.

The above-mentioned display unit 19 is operated by an infrared signal transmitted from a wireless remote controller (hereinafter, referred to as a remote controller) attached to the outside of the indoor unit, commands for starting and ending the operation, room temperature set by the user, and the like. Displays the air volume, wind direction, and other settings related to operation.

FIG. 3 is a perspective view showing the unit body 1 with the front panel 1a further removed from the state of FIG. The forced operation switch unit 16 and the light receiving unit 18 described above.
The display part 19 and the display part 19 constitute an electrical component collecting part 20, and the electrical component collecting part 20 and the sensor mounting part 21 are integrally set as a connecting assembly 22. The connecting assembly 22 is integrally molded with the rear plate 1b and is attached to a front drain pan 23 that receives drain water from the front heat exchanger section.

The sensor opening 15 provided in the receiving wall portion 14 is opened so as to face the front surface of the sensor mounting portion 21, and the receiving wall portion 14 is connected to the connecting assembly 2.
It will be extended from the upper part of 2 to the position close to the front surface of the heat exchanger 9.

FIG. 4 is an enlarged perspective view of the connection assembly 22. This is because an electric component base 25 forming a part of the electric component collecting portion 20 having a lateral dimension extremely large as compared with a vertical dimension, and an electric component base 25 outward from one end of the electric component base 25. The sensor base 26 is integrally connected and constitutes a part of the sensor mounting portion 21.

That is, the electrical component collecting portion 20 and the sensor mounting portion 21 are arranged side by side in a laterally offset manner, and the sensor base 26 is provided so as to be displaced above the electrical component base 25 as a whole. The upper end of the sensor base 26 projects from the upper end of the electric component base 25.

A control board 28 is provided over almost the entire surface of the electric component base 25, and a light receiver 29 is attached to one side of the control board. A laterally long light emitting display body 30 and a plurality of indicator lamps 31 are attached to a side portion of the light receiver 29, and a switch cover 32 is provided above the light receiver 29.

The photodetector 29 is covered with a photoreceptive filter (not shown), which constitutes the photodetector 18 described in FIG. The light receiving filter is for transmitting only the infrared signal transmitted from the remote controller and for excluding other light rays.

The periphery of the light emitting display body 30 and the indicator lamp 31 is covered with a cover body 33, and the display unit 1 is covered with these.
9 are configured. The exposed portions of the light emitting display body 30 and the indicator lamp 31 are configured to be exposed as they are from the front panel 1a, so that it is easy to confirm the respective displays.

The switch cover 32 covers a forced operation switch (not shown), and these elements constitute the forced operation switch section 16. Push button 17 described above
The forced operation switch can be operated via the switch cover 32 by pressing and pushing.

On the other hand, the sensor base 26 is provided with a room temperature sensor 35 for detecting the temperature of the indoor air and a humidity sensor 36 for detecting the humidity from the indoor air. The mounting positions of these sensor detectors are further above the upper end of the electric component base 25 and are exposed so as to be efficiently exposed to room air.

In the indoor unit of the air conditioner constructed in this way, the movable panel 2 closes the front suction port 7 when the operation is stopped, and dust is introduced into the unit main body 1 from this suction port. There is no intrusion. The outlet is also closed by two outlet louvers 4a and 4b.

When the operation switch of the remote controller is turned on, the opening / closing drive mechanism operates to move the movable panel 2 to the front side, so that the front suction port 7 is opened. The room air is guided into the unit body 1 through the upper suction port 6 and the front suction port 7, passes through an air filter (not shown), and dust contained in the room air is captured.

The electric dust collector 8 operates to completely trap the dust that has not been trapped by the air filter. Therefore, the purified air is guided to the heat exchanger 9 and the heat exchange action is performed. The heat-exchanged air is guided from the outlet to the louvers 4a and 4b and blown out into the room, so that an efficient air conditioning operation is performed. A part of the room air sucked into the main body 1 from the front suction port 7 is guided to the inside through the sensor opening 15, and the room temperature sensor 35 and the humidity sensor 3 are connected.
6 and then flows along the heat exchanger 9.

The room temperature sensor 35 detects the room temperature from the room air, the humidity sensor 36 detects the humidity from the room air, and sends respective detection signals to the control section. Based on the detection signals of the sensors 35 and 36 and the detection signals of other sensors, the control unit sends necessary control signals to predetermined components to perform optimum air conditioning operation.

When the operation switch of the remote controller is turned off to end the air conditioning operation, the operation of the compressor, the blower, and the electrostatic precipitator 8 is stopped, and the opening / closing drive mechanism moves the movable panel 2 backward to move the front suction port 7 Closes.

During long-term use, dust adheres to the heat exchanger 9 and solidifies, which lowers the heat exchange efficiency. Therefore, the movable panel 2 is removed, and cleaning detergent is applied to the heat exchanger 9 to remove dust.

As described above, when the movable panel 2 is removed, the form shown in FIG. 2 is obtained. Further, since the dust collecting side electrode of the electrostatic precipitator 8 is also removable, it may be removed if necessary.

From this state, cleaning detergent is applied to the heat exchanger 9. Cleaning detergents usually consist of high-pressure liquid, which is foamed and ejected when the ejection button is pressed. As the foamy cleaning detergent flows down from the heat exchanger 9, the attached dust is peeled off.

A part of the foam-like cleaning detergent flowing down from the heat exchanger 9 is received by the receiving wall portion 14, and further flows down from this front surface along the lower portion of the front panel 1a. Therefore,
At least the electric component collecting portion 20 is not covered with the foamy cleaning detergent.

Some foam-like detergents are used in the sensor opening 1
It is jetted from the inside of 5 and falls on the room temperature sensor 35 and the humidity sensor 36 of the sensor mounting portion 21. Then, it flows down directly from these sensors 35, 36.

Here, since the electrical component collecting portion 20 is provided laterally displaced with respect to the sensor mounting portion 21,
The foam cleaning detergent flows down directly from the sensor mounting portion 21. Therefore, the cleaning detergent does not enter the electric component collecting portion 20, and the occurrence of an electrical short circuit accident can be reliably prevented.

In any case, even if the cleaning detergent applied to the heat exchanger 9 may flow to the sensor mounting portion 21,
It is possible to reliably prevent the cleaning detergent from flowing into the electrical component collecting portion 20 that is integrally provided with the sensor mounting portion 21.

[0055]

As described above, according to the present invention, it is premised that the sensor mounting portion and the electrical component collecting portion are integrally connected to each other, and even if the cleaning detergent is applied to the sensor mounting portion, the cleaning is performed. It is a structure that reliably prevents the detergent from flowing into the electric component collecting portion, and has an effect that the occurrence of an electrical accident can be eliminated, and the reliability can be improved.

[Brief description of drawings]

FIG. 1 is an external perspective view of an indoor unit of an air conditioner, showing an embodiment of the present invention.

FIG. 2 is a perspective view of the interior of the indoor unit with the movable panel removed, showing the embodiment.

FIG. 3 is a perspective view of the interior of the indoor unit with the front panel removed, showing the embodiment.

FIG. 4 is a perspective view of a coupling assembly showing the same embodiment.

FIG. 5 is a perspective view of a conventional connection assembly.

[Explanation of symbols]

9 ... Heat exchanger, 7 ... Front suction port, 1 ... Unit body (air conditioner body), 19 ... Display, 20 ... Electrical component collecting section, 35 ... Room temperature sensor, 21 ... Sensor mounting part, 22 ... Connection assembly, 14 ... Receiving wall part.

Claims (2)

[Claims] 1. An air conditioner main body having a heat exchanger accommodated therein and having a suction port facing the heat exchanger, and the air conditioner main body being attached to a lower portion of the suction port of the main body.
A connecting assembly is provided that integrally connects an electric component collecting portion including a display portion and a sensor mounting portion including a room temperature sensor, wherein the connecting assembly is outside the side end portion of the electric component collecting portion. An air conditioner characterized in that a side end portion of the sensor mounting portion is continuously provided on one side, and the electric component collecting portion and the sensor mounting portion are laterally displaced from each other. 2. The air conditioner body includes a receiving wall portion that covers at least an upper portion of the electric component collecting portion along a lower end edge of the suction port and receives a fluid dropped from the heat exchanger. An air conditioner characterized by that.