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Air conditioning machine

A technology for air conditioners and outdoor units, applied in mechanical equipment, space heating and ventilation, baseband system components, etc., can solve problems such as time-consuming and misunderstanding, and achieve the effect of suppressing power consumption

Active Publication Date: 2012-11-14
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practice, when the charge accumulated in the floating capacitor is naturally discharged due to the signal voltage when a positive or negative signal waveform is output, as Figure 13 As shown by the dotted line after the negative waveform in , it takes time before the signal voltage returns to zero
In this case, if the logic that should be sent at the next clock time is "1", no positive or negative signal voltage is sent out (zero output) on the sending side, and therefore, a negative voltage caused by the residual charge is detected on the receiving side. voltage, which can be mistaken for a logic “0”

Method used

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Experimental program
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no. 1 approach ＞

[0039] Hereinafter, an air conditioner according to a first embodiment of the present invention will be described with reference to the drawings. Air conditioner as a whole Figure 12 Shown is composed of an indoor unit 1, an outdoor unit 2, and a remote controller 3, and these components transmit signals to each other. In addition, the indoor unit 1 and the outdoor unit 2 are connected to each other by refrigerant piping (not shown). Figure 12The basic form is shown, but the number of each of the indoor unit 1, the outdoor unit 2, and the remote control device 3 may be plural as needed. However, regarding the relationship between the indoor unit 1 and the remote control device 3 , in this embodiment, a case where one remote control device 3 is connected to one indoor unit 1 is assumed and described.

[0040] figure 1 It is a circuit diagram showing a state in which the indoor unit 1 and the remote control device 3 are connected to each other via a transmission path 4 (for ...

no. 2 approach ＞

[0072] Figure 9 It is a diagram related to the air conditioner according to the second embodiment, and is a circuit diagram showing the transmission unit T in the remote control device 3 and other details, and the floating capacitance Cs between two lines of the transmission path 4 . and figure 2 The difference is that the control signal sent from the MCU 30 to the analog switch S1 is a different signal from the signal sent to the controller Tc, and the other structures are the same.

[0073] In the first embodiment, it is assumed that the indoor unit 1 and the remote control device are in a one-to-one relationship, but in the second embodiment, as Figure 10 As shown, a state in which a plurality of remote controller devices 3 are connected in parallel to one indoor unit 1 is assumed. In this case, each remote controller device 3 is provided with a discharge circuit 33 . When the discharge control of the first embodiment is performed with a plurality of remote control de...

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PUM

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Abstract

Provided is an air conditioning machine for suppressing power consumption by a discharge resistance for discharging residual charge in a transmission path. An analog switch is inserted between two discharge resistances (R5, R6), and upon transmitting AMI signals to two lines (P1, P2) of a signal transmission path (4), an MCU (30) performs discharge control so that if a high level signal voltage is output, the analog switch (S1) is turned off, and if a low level signal voltage is output, the analog switch (S1) is turned on.

Description

technical field [0001] The present invention relates to an air conditioner, and more particularly to signal transmission between devices constituting the air conditioner. Background technique [0002] Figure 12 It is a figure showing the outline of the signal transmission of the air conditioner. In the figure, signal transmission is performed between the indoor unit 1, the outdoor unit 2, and the remote controller 3, respectively. The indoor unit 1 and the remote control device 3 are usually connected by a transmission path (such as a two-core cable) 4 including two wires. Both the indoor unit 1 and the remote control device 3 include a transmitting unit T and a receiving unit R, and thus can transmit and receive with each other. Power for the remote control device 3 is supplied from a power superimposition circuit 1 p provided in the indoor unit 1 via a transmission path 4 . [0003] Figure 13 It is a diagram showing an example of a signal waveform of the AMI (Alterna...

Claims

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Application Information

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IPC IPC(8): H04L25/02F24F11/02H04B3/50H04L25/49
CPCF24F11/0009F24F2011/0068H04L25/0272H04B3/548H04B2203/5445H04B2203/5458H04B2203/547F24F11/30F24F11/56H04B3/542F24F11/88F24F11/46
Inventor 冈野贵史
Owner DAIKIN IND LTD