JP2988352B2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner capable of generating a confirmation sound by a buzzer provided in an indoor unit every time a wireless signal according to various control contents is received from a remote controller. Things.

[0002]

2. Description of the Related Art Today's air conditioners are provided with a remote controller for remotely controlling an indoor unit. The remote controller is used to turn on / off operation, heating operation, cooling operation, dehumidifying operation, air volume control, and the like.
Various controls such as temperature setting can be performed. Then, every time the indoor unit receives a control signal from the remote controller, a beep or a beeping sound is generated to inform the remote controller operator that the indoor unit has received the control signal. By listening to this sound, the operator of the remote controller can confirm the reception on the indoor unit side.

FIG. 3 is a perspective view of the indoor unit 1 and a remote controller 21. A suction port 2, an air outlet 3,
A rotatable flap 4, a light receiving window 5 for receiving a wireless signal from the remote controller 21, a buzzer 6 for generating a sound each time a wireless signal is received from the remote controller 21, and the like are provided. On the other hand, on / off operation, heating operation, cooling operation,
Various operation buttons 22 such as switching operation modes such as dehumidification operation, temperature setting, air volume setting, and timer setting, and a display unit 23 for displaying various setting contents are provided. The remote controller 21 is provided with a light emitting element such as a light emitting diode, and transmits a control signal from the light emitting element to the light receiving window 5 of the indoor unit 1.
And the CPU of the indoor unit 1 generates a buzzer sound upon reception. As the wireless signal, an electromagnetic wave, an ultrasonic wave, or the like is used in addition to the optical signal.

[0004] Since the buzzer sound is not always comfortable for the user, it is required to select a use mode that does not generate a buzzer sound. FIG. 4 shows a block diagram of a configuration satisfying such needs. In this indoor unit 1, the CPU 31
Each time it receives various signals from 1, it unilaterally outputs a signal for driving the buzzer 6 to the setting switch 32. This setting switch 32 is for mechanically setting an alternative selection setting of generating a sound in advance by the buzzer 6 or not generating a sound. Set it.

In the configuration shown in FIG. 4, a signal for driving the buzzer 6 is always sent to the setting switch 32 from the CPU 31 every time a signal is received from the remote controller 21, and whether or not the buzzer 6 is actually driven is determined. Depends on the selection setting of the setting switch 32. That is, when the setting switch 32 is set to the side that generates a sound, the buzzer 6 is driven each time a signal is received from the remote controller 21 to generate a sound. However, if the setting switch 32 is set so as not to generate a sound, even if a signal is sent from the CPU 31 to the setting switch 32, the signal is cut off on the setting switch 32 side and the buzzer 6 is not driven, and the sound is not generated. Not generated. Normally, at the time of factory shipment, the setting switch 32 is selected and set in a state in which a sound is generated, but the setting state is visually inspected.

[0006]

However, in the above-mentioned conventional indoor unit 1, there is a problem that only one kind of sound of the buzzer 6 is used, and it is not possible to cope with the installation environment of the apparatus or the user's preference. It is also a preference of the user to selectively set whether or not to generate a sound. However, if an abnormality occurs somewhere in the indoor unit 1 and the CPU 31 is configured to drive the buzzer 6, the setting may be performed. Switch 32
Is set to the silent state, the buzzer 6 cannot be driven even when the CPU 31 drives the buzzer 6 to notify the abnormality, and there is a problem that the abnormality cannot be notified to the user.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and an object of the present invention is to enable use of a plurality of buzzer sounds, and to provide a buzzer sound suitable for an installation environment of a device and a user's preference. It is an object of the present invention to provide an air conditioner that can select the air conditioner. It is another object of the present invention to provide an air conditioner that can generate a buzzer sound even in an abnormal condition.

[0008]

The air conditioner according to the present invention is characterized in that the indoor unit 1 can generate a buzzer sound every time various signals from the remote controller 21 are received. A buzzer 6 for generation and a buzzer sound selection circuit 12 for selecting and setting this buzzer 6 to one of a plurality of sounds
And control means 11 for reading the selection setting state of the buzzer sound selection circuit 12 and driving the buzzer 6 .
The buzzer sound selection circuit 12 has a plurality of sounds and a silent state.
Is also selectable, and the control means 11 is
When the sound state is selected, the buzzer 6 is not driven.
On the other hand, when the indoor unit 1 is abnormal, the buzzer sound selection circuit
Drives the buzzer 6 regardless of the setting of 12
It is characterized in that.

[0009]

According to the air conditioner of the first aspect, a plurality of sounds are generated by the buzzer sound selection circuit 12 according to the selection setting.
It is possible to make it sound more and silence at the same time
It becomes selectable. Moreover, according to the above configuration, the indoor unit 1
When an abnormality occurs, the control means 11 sets the buzzer sound selection time.
The buzzer 6 is driven regardless of the setting of the road 12
Move and make it ring.

[0011]

[0012]

Next, an embodiment of an air conditioner according to the present invention will be described in detail with reference to the drawings. Note that the overall configuration of the air conditioner is the same as the configuration shown in FIG. 3, and thus the gist of the invention will be described in detail.

FIG. 1 is a block diagram showing a case where sound is generated by a conventional buzzer 6 corresponding to FIG.
The buzzer sound selection circuit 12 is connected to the output port P ₁ and the input port P ₂ . By the selection setting of the buzzer sound selection circuit 12, three types of "high sound", "normal sound" and "silence state" can be selected and set. The CPU 11 recognizes the state of the selected buzzer sound selection circuit 12, and stores the setting data in the storage unit. CPU11 reading the selected setting data buzzer sound selection circuit 12 outputs the signal to the output port P ₃ or the output port P ₄ in accordance with the selected setting data. A resistor R ₂ is provided between the output port P ₃ and the buzzer 6.
There resistor R ₁ is interposed between the is interposed, also the output port P ₄ and the buzzer 6. These two resistors R ₂ , R
_{1 is} a resistance for setting the pitch of the sound of the buzzer 6. And the output port P ₃ is a port for the treble output, output port P ₄ is a port for normal sound output. Thus, the CPU 11 operates the buzzer sound selection circuit 1
Reads the state of the second selection set, in case of generating a high sound by the buzzer 6, the signal sent to the output port P _3, and sends a signal to the output port P ₄ would normally sound.
If the buzzer sound selection circuit 12 has selected and set “silence state”, the CPU 11 does not send a signal to any of the output ports P ₃ and P ₄ . Further, if an abnormality occurs in the indoor unit 1, even if the selection setting of the buzzer sound selection circuit 12 is any of “silent state”, “treble”, and “normal sound”, the CP
U11 is adapted to notify the abnormality so as to sound the buzzer by sending a signal to the output port P ₃ or the output port P ₄ to the user.

FIG. 2 is a flow chart showing a case where the buzzer 6 is sounded. First, the CPU 11 reads the selection setting state of the buzzer sound selection circuit 12 in step S1. Next, in step S2, if the state of the buzzer sound selection circuit 12 has not been read a plurality of times,
If there is no change to the previous state 3, if the timing of issuing a buzzer sound proceeds to step S5, the buzzer sound state "treble" or a "normal sound" to the output port P ₃ or the output port P ₄ A signal is output and the buzzer 6 is driven. On the other hand, if there is a change in the setting state of the setting switch 32 in step S3, for example, if there is a selection setting from “treble” to “normal sound”, the process proceeds to step S4, and the current reading is read. Remember. Then, similarly to the above step S5, the process proceeds to step S6, and outputs a signal to select the output port P ₄ is for normal sound, thereby sounding the normal sound by the buzzer 6.

At the time of shipment from the factory, the setting switch 32 is selected and set to, for example, "normal sound", and the inspection is performed by the CPU 11 reading the state of the setting switch 32 and reading the data in the storage unit of the transfer destination of the data. By confirming, it is possible to perform confirmation mechanically, so that a so-called human error can be avoided. Therefore, it can always be shipped with a constant quality. In addition, since the sound of the buzzer 6 can be selected from a treble sound and a normal sound, the user's device environment,
You can select the buzzer sound that matches your taste.

In the above embodiment, the sound generated by the buzzer 6 is two kinds of "high sound" and "normal sound". However, three sounds can be added by adding "low sound" or more sounds. May be added. Also, the buzzer sound may be large or small, large or medium or small.

[0017]

Effects of the Invention] According to the air conditioner of the first aspect, Rutotomoni can be sounded from the buzzer a plurality of sound by the selection setting of the buzzer sound selection circuit, together silence also selected
Will be possible. Therefore, the equipment installation environment and user preferences
You can select a buzzer sound that matches your needs. And indoors
If an error occurs in the machine, the control means
Drive the buzzer regardless of the road selection setting
Thus, the user can be notified of the abnormality.

[0018]

[Brief description of the drawings]

FIG. 1 is a block diagram of a control circuit according to an embodiment of the present invention.

FIG. 2 is a flowchart of a control operation according to the embodiment of the present invention.

FIG. 3 is a perspective view of an indoor unit and a remote controller according to the present invention.

FIG. 4 is a block diagram of a conventional control circuit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Indoor unit 6 Buzzer 11 CPU (control means) 12 Buzzer sound selection circuit 21 Remote control

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-145972 (JP, A) JP-A-6-117680 (JP, A) JP-A-4-68549 (JP, A) (58) Field (Int.Cl. ⁶ , DB name) F24F 11/02 105

Claims (1)

(57) [Claims] An air conditioner capable of generating a buzzer sound on the indoor unit (1) side each time various signals are received from a remote control (21), a sound generating buzzer (6).
A buzzer sound selection circuit (12) for selecting and setting the buzzer (6) to one of a plurality of sounds; and a control for reading the selection setting state of the buzzer sound selection circuit (12) and driving the buzzer (6). Means (11), and the buzzer sound is provided.
The selection circuit (12) selects and sets a silent state in addition to a plurality of sounds.
And the control means (11) is silent.
When the state is selected, the buzzer (6) is not driven.
On the other hand, when the indoor unit (1) is abnormal, the buzzer sound is selected.
Buzzer regardless of the selection setting of circuit (12)
An air conditioner characterized by driving (6) .