JPH1169466A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow infrared ray signals passed through a light receiving window to more surely reach a photodetector by applying a light diffusing agent for irregularly reflecting infrared rays on the photodetector side surface of the light receiving window. SOLUTION: The infrared rays of remote control signals 4 from an operation instruction signal transmitter sent to an air conditioner main body 1 are passed through the light receiving window 2 provided on the front surface lower part of the air conditioner main body 1 and made to reach the photodetector 3 provided inside the air conditioner main body 1 facing the light receiving window 2. However, in the case that the incident angle of the sent signals is not appropriate like the infrared rays of the remote control signals 5 from the operation instruction signal transmitter, there is the case that they can not accurately reach the photodetector 3 and the probability of becoming a reception error becomes high. In this case, by applying the light diffusing agent on the side of the photodetector 3 of the light receiving window 2, the infrared ray signals are irregularly reflected between the light receiving window 2 and the photodetector 3. Since they are irregularly reflected in such a manner, the remote control signals 4 and 5 are received by the photodetector 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner, and more particularly, to an improvement in a light receiving unit for a remote control signal of an air conditioner.

[0002]

2. Description of the Related Art In a conventional air conditioner, a light receiving portion of a remote control signal is provided with a light receiving window only for transmitting infrared rays, and the remote control signal can pass through the light receiving window and be received by a light receiving element. .

[0003]

The conventional air conditioner is
With the above configuration, when the transmission angle of the remote control signal is changed, the light receiving element may not be able to reach the light receiving element accurately, and the probability of receiving error is high. Also,
At the same time, the fluorescent light noise penetrated through the light receiving window, thereby blocking the remote control signal, and the probability of receiving errors was high.

The present invention has been made to solve the above problems, and has as its object to improve the light receiving sensitivity of a remote control signal receiving section of an air conditioner.

[0005]

An air conditioner according to the present invention comprises an air conditioner main body, an operation instruction signal transmitting means for transmitting an operation instruction signal to the main body, and an infrared ray of the operation instruction signal provided in the main body. A light-receiving window for transmitting infrared light, a light-receiving element provided in the main body opposite to the light-receiving window, for receiving infrared light, and a light diffusing agent applied to the light-receiving element side surface of the light-receiving window to diffusely reflect infrared light. Things.

[0006] Further, an air conditioner main body, operation instruction signal transmitting means for transmitting an operation instruction signal to the main body, a light receiving window provided in the main body and transmitting infrared light of the operation instruction signal,
A light receiving element that is provided in the main body to face the light receiving window and receives infrared light, and is provided so as to cover a part of the light receiving window,
And a light shielding agent for shielding external light.

A light diffusing agent applied to the light receiving element side surface of the light receiving window to diffusely reflect infrared rays, and a light shielding agent provided so as to cover a part of the light receiving window and shielding external light. It is.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. 1 and 2 are views showing an example of an embodiment of the present invention. FIG. 1 is an overall perspective view of an air conditioner.
FIG. 2 is a perspective view of a main part of the air conditioner.

In the figure, infrared rays of a remote control signal (front) 4 from an operation instruction signal transmitting means sent to the air conditioner main body 1 pass through a light receiving window 2 provided at a lower portion of the front of the air conditioner main body 1. Air conditioner body 1 facing light receiving window 2
Reaches the light receiving element 3 provided inside the device.

However, when the incident angle of the transmitted signal, such as the infrared ray of the remote control signal (side part) 5 from the driving instruction signal transmitting means, is not appropriate, it may not be possible to reach the light receiving element 3 accurately. Although there is a high probability of a reception error, an infrared signal is irregularly reflected between the light receiving window 2 and the light receiving element 3 by applying a light diffusing agent to the light receiving element 3 side of the light receiving window 2.

The remote control signal is transmitted to the light receiving element 22 by irregularly reflecting the infrared signal between the light receiving window 2 and the light receiving element 3.
, And the light receiving element 3 can receive the remote control signals 4 and 5.

Embodiment 2 FIG. Hereinafter, another example of the embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a diagram showing another example of the embodiment of the present invention, and is a perspective view of a main part of an air conditioner. As shown in FIG. 3, the upper part of the light receiving window 2 of the air conditioner main body 1 is covered with a light shielding agent 7 to cancel the fluorescent lamp noise 6 installed above the air conditioner main body 1, and input from below. The remote control signals 4 and 5 to be received can be received while reducing the influence of the fluorescent light noise 6.

In the above embodiment, the air conditioner body 1
The upper part of the light receiving window 2 is covered with the light shielding agent 7,
Of course, it is not limited to the upper part. In addition, although the fluorescent lamp noise 6 is shown as the external noise, the present invention is not limited to this.

Embodiment 3 By applying a light diffusing agent to the light receiving element 3 side of the light receiving window 2 to diffusely reflect an infrared signal between the light receiving window 2 and the light receiving element 3, and covering the upper part of the light receiving window 2 with the light shielding agent 7, It is possible to make it easier for the light receiving element 2 to receive the remote control signal 4.

[0015]

According to the air conditioner of the present invention, by applying a light diffusing agent which diffuses infrared rays to the light receiving element side surface of the light receiving window, the infrared signal passing through the light receiving window reaches the light receiving element more reliably. Can be done.

Further, by providing a light shielding agent for shielding external light in a part of the light receiving window, even when external light is received, the external light is shielded by the light receiving window, so that the reception performance of the remote control signal can be improved.

Further, a light diffusing agent for irregularly reflecting infrared rays is applied to the light receiving element side surface of the light receiving window, and a light shielding agent for blocking external light is provided on a part of the light receiving window, thereby further receiving a remote control signal. Performance can be improved.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of the present invention, and is an overall perspective view of an air conditioner.

FIG. 2 is a view showing an embodiment of the present invention, and is a perspective view of a main part of an air conditioner.

FIG. 3 is a view showing an embodiment of the present invention, and is a perspective view of a main part of an air conditioner.

[Explanation of symbols]

1 air conditioner body, 2 light receiving window, 3 light receiving element, 4
Remote control signal (front), 5 Remote control signal (side), 6
Fluorescent light noise, 7 light shielding agent.

Claims (3)

[Claims] 1. An air conditioner main body, an operation instruction signal transmitting means for transmitting an operation instruction signal to the main body, a light receiving window provided in the main body and transmitting infrared light of the operation instruction signal, A light-receiving element provided in the main body facing the light-receiving element and receiving the infrared light; and a light diffusing agent applied to a surface of the light-receiving window on the light-receiving element side and diffusely reflecting the infrared light. Air conditioner. 2. An air conditioner main body, an operation instruction signal transmitting means for transmitting an operation instruction signal to the main body, a light receiving window provided in the main body and transmitting infrared light of the operation instruction signal, A light receiving element that is provided in the main body to face and receives the infrared light; and a light shielding agent that is provided so as to cover a part of the light receiving window and shields external light. Air conditioner. 3. The air conditioner according to claim 1, further comprising a light shielding agent provided to cover a part of the light receiving window and shielding external light.