阅读说明：本技术 家电设备 (Household appliance ) 是由 藤城直 壁田知宜 于 2018-01-23 设计创作，主要内容包括：电源电路(15)接受经由电源插头(101)输入的交流电力而生成内部电源。界面控制部(30)连接于操作部(32),接受内部电源而工作。界面控制部(30)基于通过操作部(32)受理的操作将动作命令提供给致动器驱动部(17)。电源探测部(18)探测是否向电源电路部(15)输入了交流电力。如步骤S110所示,如果第一微计算机(30a)在步骤S101中通过电源探测部(18)探测出交流电力未被输入,则即使由于第一平滑电容器(C1)的残留电荷而从电源电路部(15)向界面控制部(30)供给了内部电源,也使得执行预先规定的“停止处理”。(A power supply circuit (15) receives AC power input via a power plug (101) and generates an internal power supply. The interface control unit (30) is connected to the operation unit (32) and operates in response to an internal power supply. The interface control unit (30) provides an operation command to the actuator drive unit (17) based on the operation received by the operation unit (32). A power supply detection unit (18) detects whether or not AC power is input to the power supply circuit unit (15). As shown in step S110, if the first microcomputer (30a) detects in step S101 that the ac power is not input by the power supply detection unit (18), even if the internal power supply is supplied from the power supply circuit unit (15) to the interface control unit (30) due to the residual charge of the first smoothing capacitor (C1), the predetermined "stop processing" is executed.)

1. A home appliance is provided with:

a power supply circuit unit that receives AC power and generates an internal power supply;

an interface control unit connected to the operation unit, operated by receiving the internal power supply, and configured to supply an operation command to the actuator driving unit based on the operation received by the operation unit; and

a power supply detection unit that detects whether or not the AC power is input to the power supply circuit unit,

if the power supply detection unit detects that the ac power is not input, the interface control unit is caused to execute a predetermined stop process even if the internal power supply from the power supply circuit unit is supplied.

2. The home device of claim 1,

the power supply device further includes a signal wiring line that directly connects the power supply detection unit and the interface control unit without intervening another circuit and transmits a signal indicating that the ac power is not input to the interface control unit.

3. The home appliance according to claim 1, comprising:

an actuator driven by the actuator driving section; and

a power supply switch which is present between the actuator driving unit and the power supply circuit unit and transmits the internal power generated by the power supply circuit unit to the actuator driving unit when the power supply switch is turned on,

the power unit switch is turned off during execution of a standby mode in which the power of the home appliance is turned on and the actuator is stopped.

4. The home device of claim 3,

the home appliance is a portable appliance including a housing that accommodates the power circuit unit, the interface control unit, the power detection unit, the actuator, and the power switch.

5. The home appliance according to claim 3 or 4, comprising:

a power plug connected to an ac power supply that supplies the ac power;

a power supply synchronization detection unit that detects a zero crossing of the alternating-current power; and

a detection part switch for connecting and disconnecting the electrical connection between the power plug and the power synchronization detection part,

the detection unit switch is turned off during the execution of the standby mode.

6. The home device of claim 1,

further comprises a power supply synchronization detection unit for detecting a zero crossing of the AC power,

the power source detection unit includes:

a first resistor having one end receiving the ac power;

the anode of the first diode is connected to the other end of the first resistor;

a first optocoupler communicating a first current signal flowing from the cathode of the first diode; and

a second resistor, one end of which receives a control power supply and the other end of which is connected with the first optical coupler,

outputting the first current signal from between the other end and the first optocoupler,

the power synchronization detection unit includes:

a third resistor having one end receiving the ac power;

the anode of the second diode is connected to the other end of the third resistor;

a second optocoupler communicating a second current signal flowing from the cathode of the second diode; and

a fourth resistor, one end of which receives a control power supply and the other end of which is connected with the second optical coupler,

outputting the second current signal from between the other end and the first optocoupler,

the first resistor has a higher resistance value than the third resistor.

7. The home device of claim 1,

the stop processing includes operation prohibition processing in which the interface control unit does not accept an operation of the operation unit.

8. The home device of claim 1,

comprises a display part used for providing images for a user by the interface control part,

the stop processing includes any one of display stop processing of the display unit, display processing of a predetermined operation stop image on the display unit, and display processing of a predetermined plug-out time alarm screen on the display unit.

9. The home device of claim 1,

the stop processing includes a light-off processing of turning off the device power supply lamp in a case where the interface control section includes the device power supply lamp.

10. The home device of claim 1,

a communication wiring for communicating whether or not an abnormality occurs between the actuator driving section and the interface control section, and a notification unit for notifying an alarm are provided,

the stop processing includes alarm stop processing for causing the notification unit not to notify an abnormal alarm indicating that the operation received by the operation unit is not realized by the actuator driving unit.

11. The home device of claim 1,

a power supply switch that is present between the actuator driving unit and the power supply circuit unit and that transmits the internal power generated by the power supply circuit unit to the actuator driving unit when the power supply switch is turned on;

if the power supply switch is turned on from off, the power supply switch is kept on until a predetermined time elapses.

Technical Field

The present invention relates to a home appliance.

Background

Conventionally, as disclosed in, for example, japanese patent application laid-open No. 2006-246666, there is known an air conditioner that releases a residual voltage in a short time when an outlet is powered off. In this air conditioner, the residual voltage of the capacitor is discharged when the outlet is pulled out for safety purposes.

Disclosure of Invention

Problems to be solved by the invention

Home appliances such as air conditioners and dehumidifiers are provided with a power supply circuit, an actuator driving unit, and a display operation device. The power supply circuit is connected to the power plug to generate power. The actuator performs desired functions such as air conditioning and dehumidification. The actuator driving unit includes a driving circuit. The display operation device handles the operation and display of the device.

The smoothing capacitor is mostly included in at least one of the power supply circuit and the drive circuit. When the power plug is pulled out and the supply of the ac power is terminated, the smoothing capacitor has residual charge. Due to the effect of recent reduction in power consumption, a poor period in which the power supply of the display operation device continues to be turned on due to the residual voltage of the smoothing capacitor even if the power plug is pulled out may occur.

The residual voltage of the smoothing capacitor cannot compensate for such a large electric power as to drive the actuator in the normal operation. In this bad period, although the display operation device is operating, a desired actuator action cannot be achieved even if an operation is input to the display operation device. This defective period is temporary, and when the residual charge of the smoothing capacitor is reduced, it is eliminated and the state is the same as the normal power OFF (OFF). Thus, it is not desirable to treat the bad period as an abnormal occurrence such as a device failure.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a home appliance improved so as to prevent unnecessary handling of an appliance operation as an abnormality when power supply of ac power is stopped.

Means for solving the problems

The home appliance of the present invention includes:

a power supply circuit unit that receives AC power and generates an internal power supply;

an interface control unit connected to the operation unit, operated by receiving the internal power supply, and configured to supply an operation command to the actuator driving unit based on the operation received by the operation unit; and

a power supply detection unit that detects whether or not the AC power is input to the power supply circuit unit,

if the power supply detection unit detects that the ac power is not input, the interface control unit is caused to execute a predetermined stop process even if the internal power supply from the power supply circuit unit is supplied.

ADVANTAGEOUS EFFECTS OF INVENTION

When the supply of the ac power is terminated, the interface control unit can be caused to execute the stop process even if the interface control unit continues to receive the supply of the power due to the residual charge of the capacitor in the power supply circuit unit. This can prevent the device operation from being unnecessarily treated as an abnormality when the supply of the ac power is stopped.

Drawings

Fig. 1 is a sectional view of a home appliance according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of a home appliance according to an embodiment of the present invention.

Fig. 3 is a circuit block diagram of a home appliance according to an embodiment of the present invention.

Fig. 4 is a flowchart for explaining an operation of the home appliance according to the embodiment of the present invention.

Fig. 5 is a circuit diagram of a power synchronization detection unit of a home appliance according to an embodiment of the present invention.

Fig. 6 is an example of a hardware configuration diagram of the interface control unit.

(description of reference numerals)

1: a center housing; 2: a front housing; 3: a rear housing; 4: an outlet port; 5: a blower; 6: a dehumidifying device; 6 a: a compressor; 6 b: a condenser; 6 c: a pressure reducing device; 6 d: an evaporator; 7: a display operation device; 7 a: a main power switch; 8: a water storage tank; 9: a suction inlet; 10: a control device; 11: a discharge port louver drive motor; 12: a sensor; 13: an alternating current power supply; 15: a power supply circuit section; 16: a power supply switch; 17: an actuator driving section; 17 a: a drive circuit; 17 b: a second microcomputer; 18: a power source detection section; 19: a power supply synchronization detection section; 20: a detection part switch; 30: an interface control section; 30 a: a first microcomputer; 31: a display unit; 32: an operation section; 32 a: an operation switch; 41: wiring (signal wiring); 42: wiring (power supply wiring); 43: wiring (control wiring); 44: wiring (communication wiring); 45: wiring (synchronization signal wiring); 50: dedicated hardware; 51: a processor; 52: a memory; 100: a home appliance device; 101: a power plug; 141: a first resistance (third resistance); 142: a diode; 143: an optical coupler; 144: a second resistor; c1: a first smoothing capacitor; c2: a second smoothing capacitor.

Detailed Description

Fig. 1 is a sectional view of a home appliance according to an embodiment of the present invention. Fig. 2 is an exploded perspective view of a home appliance according to an embodiment of the present invention.