JP2716881B2 - 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 a heating device, a cooling device,
The present invention relates to an air conditioner such as a cooling / heating device, a dehumidifying device, a blowing device, or a ventilation device.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Publication No. 61-7466.
In order to prevent runaway of heating equipment due to children's mischief and inconvenience when a child puts foreign matter on the front of the heater main body, there is a microphone and an ultrasonic transmitter for transmitting ultrasonic waves to the front of the heater main body. There has been proposed an indoor heating device (hereinafter referred to as a conventional technology) in which a detecting unit including a receiving unit that receives a sound wave is provided, and when the detecting unit operates, the operation of a heat source is stopped to improve safety.

[0003]

However, in the prior art, even in the absence of a child or in a home with only an adult, the detection unit operates even when approaching the heater main body when the heating capacity is changed or the like, and the heat source is not operated. Operation stops automatically. Therefore, every time the heating capacity is changed, it is necessary to operate the operation switch again and restart the heat source so that the heat source is restarted. The present invention provides an air conditioner that includes a safety device that stops the operation of an air conditioner when an object to be detected is detected by a detection unit.The air conditioner can improve usability while maintaining safety. Aim.

[0004]

According to a first aspect of the present invention, there is provided an apparatus main body having an air conditioner, a detecting unit provided in the apparatus main body for detecting an object to be detected, and an operation state of the air conditioner. It has a setting unit for setting or canceling the child lock mode that restricts the change, and when the child lock mode is set by operating the setting unit, the detection unit detects the object to be detected. When the operation of the air conditioner is stopped and the child lock mode is released by operating the setting unit, the safety of continuing the operation of the air conditioner even if the detection unit detects the object to be detected. The technical means provided with the device was employed. The invention according to claim 2 has an apparatus main body having an air-conditioning apparatus, and a detection unit provided in the apparatus main body and detecting an object to be detected, and the air conditioning is performed when the object is detected by the detection unit. A technique for stopping the operation of the equipment and stopping the operation of the air conditioning equipment, and then restarting the operation of the air conditioning equipment when the detection unit does not detect the object to be detected for a predetermined time or more. Means were adopted.

According to a third aspect of the present invention, there is provided an apparatus main body having an air conditioner, a detection unit provided in the apparatus main body for detecting an object to be detected, and a child lock for restricting a change in an operation state of the air conditioner. When the child lock mode is set by operating the setting unit, the operation of the air conditioner is performed when the detection unit detects the object to be detected. After stopping and stopping the operation of the air conditioning equipment,
The operation of the air conditioner is restarted when the detection object is not detected by the detection unit for a predetermined time or more, and the child lock mode is released by operating the setting unit. Technical means including a safety device that continues to operate the air conditioner even when an object to be detected is detected is employed.

[0006]

According to the first aspect of the present invention, when the child lock mode is set to prevent mischief of a child or the like, the detection unit is in an operating state and an object such as a child is detected. Sometimes the operation of the air conditioner is automatically stopped.
Further, when it is not necessary to set the child lock mode as in a home where a child is absent or an adult alone, that is, when the child lock mode is released, the detection unit does not operate, so the operation of the air conditioner is not performed. Never stop. According to the second aspect of the invention, when the detection unit detects an object such as a child, the operation of the air conditioner is automatically stopped. Then, after the operation of the air conditioner is stopped, if the detection unit does not detect an object such as a child for a predetermined time or more, the operation of the air conditioner automatically restarts.

According to the third aspect of the present invention, when the child lock mode is set to prevent mischief of a child or the like, the detection unit is in an operating state and an object such as a child is detected. Sometimes the operation of the air conditioner is automatically stopped. Then, after the operation of the air conditioner is stopped, if the detection unit does not detect an object such as a child for a predetermined time or more, the operation of the air conditioner automatically restarts. Further, when it is not necessary to set the child lock mode as in a home where no child is present or only an adult, that is, when the child lock mode is released, the detection unit does not detect an object to be detected. The operation of the air conditioner does not stop.

[0008]

1 to 5 show an embodiment in which a gas hot air heating device is used as an air conditioner. FIG. 1 is a diagram showing a gas hot-air heating device, and FIGS. 2 to 4 are diagrams showing a device main body of the gas hot-air heating device. The gas hot-air heating device 1 includes a device main body 3 having a built-in heating device 2, a computer 9 for controlling the heating device 2, and the like.

The heating device 2 is the air conditioning device of the present invention, and includes a convection duct 4, a convection blower 5, a gas burner 6,
It is composed of a combustion duct 7 and a gas supply pipe 8.

The convection duct 4 is incorporated in the equipment main body 3, sucks room air from an air suction port 41 opened at the back of the equipment main body 3, and opens a warm air outlet 42 opened at the lower front part of the equipment main body 3. It is a hot air passage that blows out hot air more indoors. As shown in FIG. 3, a filter 43 is attached to the air inlet 41 to prevent dust and dirt from flowing into the inside.

On the other hand, as shown in FIGS. 2 and 4, a movable louver 44 rotatably supported at the lower portion of the apparatus body 3 is attached to the hot air outlet 42. The louver 44 is driven to a fully open position, a half open position, a closed position, and the like by a gad motor 45 controlled to be energized by the computer 9 to change the degree of opening of the hot air outlet 42,
Change the direction of hot air blowing.

The convection blower 5 has a fan motor 51 whose rotation speed changes in accordance with the amount of electricity supplied, and a convection fan 52 which is driven to rotate by the fan motor 51 and generates an airflow in the convection duct 4 toward the room. It is composed of

The gas burner 6 has a structure in which a combustion plate 62 is disposed inside a combustion case 61 which is incorporated in the convection duct 4 and communicates with the convection duct 4. Is mixed with room air flowing in the convection duct 4 to heat the air. Downstream of the combustion plate 62, a spark electrode 63 for igniting a mixture of fuel gas and combustion air flowing out of the combustion plate 62 by spark discharge is provided.

The combustion duct 7 is incorporated in the equipment main body 3 and supplies the indoor air sucked through an inlet 71 opened at the back of the equipment main body 3 and the fuel gas introduced through the gas supply pipe 8 to the gas burner 6. It is an air passage. The suction port 71 is covered with the above-described filter 43.

The gas supply pipe 8 is a gas passage for supplying fuel gas to the gas burner 6, and includes two solenoid valves 81, 8
2. The governor valve 83, the proportional control valve 84, and the nozzle 85 are provided sequentially from the upstream side.

The two solenoid valves 81 and 82 are connected to the gas supply pipe 8.
The valve opens when energized (ON) and closes when energized is stopped (OFF). The governor valve 83 is
This is to make the supply pressure of the fuel gas constant.

The proportional control valve 84 changes the fuel gas supply pressure by changing the degree of opening of the gas supply pipe 8 in accordance with the amount of current supply, thereby adjusting the fuel gas supply amount. The nozzle 85 is open in the combustion duct 7, and ejects the fuel gas flowing through the gas supply pipe 8 into the combustion duct 7.

The computer 9 incorporates a timer 9a and a safety circuit 9b, and includes an operation switch 91, a child lock setting section 92, a thermocouple 93, and a temperature sensor 94.
The gad motor 45, the fan motor 51, the spark electrode 63, the solenoid valve 8
1, 82, a proportional control valve 84, and a display device (not shown) for displaying a set temperature or a room temperature are controlled to be energized. The operation switch 91 is attached to the upper surface of the equipment main body 3 as shown in FIG. 2 and sends instructions to start and stop the operation of the heating equipment 2 to the computer 9.

As shown in FIG. 2, an opening / closing lid 31 is mounted on the upper surface of the apparatus main body 3. When the opening / closing lid 31 is opened, a temperature control switch 96 for increasing the set temperature and a temperature control for decreasing the set temperature. An operation unit such as the switch 97 appears. These temperature control switches 96 and 97 constitute temperature setting means for setting a set temperature when operated separately, and when operated simultaneously, function as a child lock setting section 92 to change the set temperature in the room, A child lock mode for prohibiting a change of the heating device 2 from the operation stop state to the operation state is set. To release the child lock mode, the temperature control switches 96 and 97 may be operated again simultaneously.

The thermocouple 93 includes the combustion plate 62
To detect whether or not the gas burner 6 is abnormally burning, such as an oxygen deficiency state of the combustion flame due to an electromotive force generated by the combustion flame. The temperature sensor 94 is a temperature-sensitive element such as a thermistor attached near the suction port 71 of the combustion duct 7 and detects the temperature in the room.

The infrared sensor 95 is a detection unit according to the present invention, and is mounted on the front surface of the device body 3 and includes a light emitting element 98 and a light receiving element 99 as shown in FIG. The light emitting element 98 is composed of, for example, an infrared light emitting diode, and emits infrared light toward the front of the device main body 3. The light receiving element 99 is formed of, for example, a phototransistor, and detects infrared light reflected by a detection target such as a child, which is within a detection range of, for example, 50 cm or less of the apparatus main body 3.

The safety circuit 9b of the computer 9 is a safety device of the present invention, and performs the operation shown in the flowchart of FIG. First, it is determined whether or not the operation switch 91 is turned on (step S1). When the operation switch 91 is not turned on (No), the control in step S1 is performed, and when the operation switch 91 is turned on (Yes),
The operation of the heating device 2 is started (Step S2).

Subsequently, it is determined whether or not the temperature control switches 96 and 97 are simultaneously operated (step S3).
When not operated at the same time (No), control in step S3 is performed.

In step S3, when they are simultaneously operated (Yes), the child lock mode is set (step S4). Then, it is determined whether or not infrared rays are detected by the light receiving element 99 of the infrared sensor 95 (step S5). When infrared rays are not detected (No), it is determined whether or not the temperature control switches 96 and 97 are simultaneously operated (step S6). Not operated at the same time (N
At the time of o), the control of step S5 is performed, and when the operation is performed at the same time (Yes), the child lock mode is released (step S7). After that, the control of step S3 is performed.

In step S6, when infrared rays are detected (Yes), the operation of the heating device 2 is stopped (step S8). The timer 9a is reset to start counting (step S9). Then, it is determined whether a predetermined time (for example, 30 seconds) has elapsed since the timer 9a started counting (step S10). If the predetermined time has not elapsed (No), it is determined whether or not infrared rays are detected by the light receiving element 99 of the infrared sensor 95 (step S11). When the infrared ray is detected (Yes), the control in step S9 is performed, and the infrared ray is not detected (N
At time o), the control in step S11 is performed.

In step S10, when the predetermined time has elapsed (Yes), the operation of the heating device 2 is restarted (step S12), and the control in step S5 is performed. When the child lock mode is set when the operation switch 91 is turned on from off, the heating device 2 is not operated. In addition, when the operation switch 91 is turned off from on, the operation of the heating device 2 is immediately stopped regardless of the setting of the child lock mode.

The operation of the gas hot air heating apparatus 1 will be described with reference to FIGS. When the operation switch 91 is turned on, the operation of the heating device 2 is started. That is, the fan motor 51, the spark electrode 63, the solenoid valves 81 and 82
Is supplied with electricity, fuel gas and room air are sucked into the combustion case 61 by the suction force of the convection fan 52, combustion is started by the gas burner 6, and warm air is blown into the room from the warm air outlet 42.

At this time, when the user operates one of the temperature control switches 96 and 97, for example, for the purpose of setting the set temperature in the room, the computer 9 operates the set temperature set by the user and the temperature sensor 94. The heating capacity of the heating device 2 is controlled based on the difference from the room temperature detected in step (1). For example, the convection fan 5
2, the combustion capacity of the gas burner 6 is changed by changing the amount of gas blown out from the nozzle 85 of the gas supply pipe 8 by changing the amount of air blown or changing the amount of electricity supplied to the proportional control valve 84.

Incidentally, even if the user changes the set temperature as described above within the detection range of the light receiving element 99 of the infrared sensor 95, the computer 9 continues to operate the heating device 2 unless the child lock mode is set. The control to stop the operation of is not performed. Therefore, it is not necessary to perform a troublesome re-operation such as turning on the operation switch 91 again.

Here, when the temperature control switches 96 and 97 are simultaneously operated for the purpose of preventing an increase in the set temperature due to mischief of a child, the computer 9 sets the child lock mode. At this time, a change in the indoor set temperature by operating one of the temperature control switches 96 and 97 is prohibited.

When a child approaches the front of the device body 3,
That is, when the light enters the detection range of the light receiving element 99 of the infrared sensor 95, the infrared light emitted from the light emitting element 98 is reflected by a child and detected by the light receiving element 99. At this time, the computer 9 immediately stops the operation of the heating device 2. That is, the energization of the solenoid valves 81 and 82 is stopped to interrupt the combustion of the gas burner 6, and the energization of the fan motor 51 is stopped to stop the blowing of the warm air by the convection fan 52.

When the child moves from the front of the apparatus main body 3 to another location and goes out of the detection range of the light receiving element 99 of the infrared sensor 95, a predetermined time has elapsed, and the computer 9 sets the heating apparatus 2 Resumes operation. Therefore, it is possible to prevent the temperature of the room from being lowered by not heating the room for a long time.

(Modification) In the present embodiment, the present invention is applied to a gas hot air type heating device. However, the present invention may be applied to a heating device provided with another heat source, or a cooling device, a cooling / heating device. It may be adopted in an air conditioner such as a blower such as a dehumidifier or a fan, or a ventilator such as a ventilation fan.

As the detecting unit, in addition to the present embodiment, a non-contact type sensor such as a transmission type photoelectric switch, a proximity switch or an ultrasonic sensor, a contact type sensor such as a touch switch, a temperature-sensitive sensor for sensing body temperature. An element or an infrared camera for taking a thermal image may be used. Further, the detection unit may be provided not only on the front surface of the device main body but also on the side surface or the rear surface.

In this embodiment, the child lock is set and released by operating the temperature control switches 96 and 97 simultaneously. However, the child lock may be set and released by operating a dedicated switch. , Or by simultaneously operating other switches.

In this embodiment, the air discharged from the hot air outlet 42 is heated by mixing the combustion exhaust gas from the gas burner 6 and the indoor air. However, a heat exchanger is provided to allow the inside of the convection duct 4 to be heated. The passing air may be heated, cooled or dehumidified.

In general, when the louver 44 is located at a position different from the basic position, the louver 44 is driven to the basic position even when the operation of the other heating devices 2 is stopped. For this reason, there is a possibility that a child or the like may insert his hand into the warm air outlet 42 and be pinched by the louver 44.
When an object to be detected such as a child is detected at 9, the energization of the gad motor 45 may be stopped at the same time as the operation of the heating device 2 is stopped.

In this embodiment, both the invention of claim 1 and the invention of claim 2 are used, but either one of the invention of claim 1 or the invention of claim 2 may be used. Further, when only the invention of claim 2 is used, the setting section for setting the child lock mode becomes unnecessary.

[0039]

According to the first aspect of the present invention, when the child lock mode is set, the operation of the air conditioner is automatically stopped when an object to be detected such as a child is detected. The air conditioner can be operated in a safe state with respect to the detected object such as. Further, when the child lock mode is released, the operation of the air conditioner is not stopped, so that it is not necessary to restart the air conditioner every time a change to a different air conditioning state is performed.
Therefore, usability can be improved without impairing the safety of the safety device. According to the second aspect of the present invention, the indoor environment is prevented by not restarting the room for a long time by automatically restarting the operation of the air conditioner after a predetermined time has elapsed since the detected object such as a child has left the air conditioner. Can be prevented from deteriorating. Further, the usability can be improved without impairing the safety of the safety device.

According to the third aspect of the invention, when the child lock mode is set, the operation of the air conditioner is automatically stopped when an object to be detected such as a child is detected. The air conditioner can be operated in a safe state with respect to the detected object. Then, by automatically restarting the operation of the air conditioner after a predetermined time has passed since the detected object such as a child has left the air conditioner, it is possible to prevent the deterioration of the indoor environment caused by not air-conditioning the room for a long time. it can. Further, when the child lock mode is released, the operation of the air conditioner is not stopped, so that it is not necessary to restart the air conditioner every time a change to a different air conditioning state is performed. Therefore, usability can be improved without impairing the safety of the safety device.

[Brief description of the drawings]

FIG. 1 is a structural diagram showing an overall structure of a gas hot air type heating device.

FIG. 2 is a perspective view showing a front surface of the device main body.

FIG. 3 is a perspective view showing a rear surface of the device main body.

FIG. 4 is a side view showing a side surface of the device main body.

FIG. 5 is a flowchart illustrating an example of a main operation of the computer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gas hot air type heating device (air conditioner) 2 Heating equipment (air conditioning equipment) 3 Equipment main body 9 Computer 9b Safety circuit (safety device) 92 Child lock setting part 95 Infrared sensor (detection part) 96 Temperature control switch 97 Temperature control Switch 98 Light emitting element 99 Light receiving element

Claims (3)

(57) [Claims] 1. An apparatus main body having an air conditioner, (b) a detection unit provided in the apparatus main body for detecting an object to be detected, and a child lock mode for restricting a change in an operation state of the air conditioner. has a setting unit for performing the setting or canceling, if it is set to the child lock mode by operating the setting unit, the operation of the air-conditioning equipment upon detection of the detection object in the detection unit stop, the set
Operate the fixed section to set the child lock mode
Is released, the detection unit detects the object to be detected.
An air conditioner comprising: a safety device that keeps operating the air conditioner even if the user knows it . 2. An apparatus main body having an air conditioner, and (b) a detection unit provided in the apparatus main body and detecting an object to be detected, wherein the detection unit detects the object to be detected. A safety device for stopping the operation of the air conditioner and, after stopping the operation of the air conditioner, restarting the operation of the air conditioner when the detection unit does not detect the object to be detected for a predetermined time or more. Air conditioner. (A) a device main body having an air conditioner; and (b) a detection device provided in the device main body and detecting an object to be detected.
The change of the operation state of the sensing unit and the air conditioner is restricted.
Setting section for setting or canceling child lock mode
The child lock is operated by operating the setting unit.
If the mode is set, the detection unit
When the operation of the air conditioner is stopped when an object is detected,
A predetermined time or more after stopping the operation of the air conditioner.
The air conditioning when said at serial detection unit does not detect a test knowledge thereof
Restart the operation of the device and operate the setting unit to operate the child lock.
If the mode is that been released, the object detected by the detecting unit
A safety device that continues to operate the air conditioner even if an object is detected
An air conditioner comprising: