Error wiring detector for air conditioner
A detection device, air conditioner technology, applied in the direction of measuring devices, emergency protection circuit devices, measuring electricity, etc., can solve problems such as overheating of wires
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Embodiment 1
[0033] figure 1 It is a power supply wiring diagram including a miswiring detecting device for an air conditioner according to Embodiment 1 of the present invention, figure 2 is a power supply wiring diagram of an air conditioner including a miswiring detection device showing details of an electric signal detection device, image 3 It is a power supply wiring diagram of the wrong wiring detection device of the air conditioner including the details of the signal detection device and the determination device, Figure 4 wiring diagram diagram for wiring the power supply, Figure 5 It is a waveform diagram of the detection signal of the electrical signal detection device.
[0034] figure 1 Among them, 1 is the primary power supply for single-phase AC, 2 is the grounding resistance between the N-phase of the primary power supply and the ground, 3 is the ground point, 4 is the power wiring from the primary power supply, and 5 is the socket for the air conditioner. 6 is the pl...
Embodiment 2
[0076] Image 6 It is a power supply wiring diagram including the miswiring detecting device of the air conditioner according to Embodiment 2 of the present invention. In Embodiment 1, the electric signal detection device composed of a photocoupler was shown, but in this embodiment, the electric signal detection device is composed of a resistor or a capacitor.
[0077] Image 6 In, for example 1 image 3 The same parts or corresponding parts are marked with the same symbols, and their explanations are omitted. In the electrical signal detection device 18, 59 is a voltage detection circuit for detecting the voltage of the resistor 25 connected between the L phase and E, and 60 is a voltage detection circuit for detecting the voltage of the resistor 32 connected between the N phase and E. Other than that, the electrical signal detection device 18 is the same as the first embodiment.
[0078] In this configuration, when a voltage is applied between the L phase and E, the volt...
Embodiment 3
[0081] Figure 7 It is a power supply wiring diagram including a miswiring detection device for an air conditioner according to Embodiment 3 of the present invention. As shown in Embodiment 2, when the resistors 25 and 32 are used in the electrical signal detection device, since resistance value = insulation resistance value, in order to satisfy various safety standards based on electrical equipment and electrical components (electrical appliances) Management law and IEC, UL, CSA, TUV, BSI and other foreign electrical safety standards, etc.) must be connected to a relatively large resistance value. Due to the disadvantages of noise deterioration, capacitors 22 and 29 are used instead of resistors. 25, 32.
[0082] The resistance value is reduced by connecting a capacitor, or the insulation resistance can be ensured without connecting a resistor, and the safety standard can be satisfied by obtaining an appropriate capacitance value by calculation.
[0083] In addition, since ...
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