Electric power supply apparatus of air condition control machine

• US 5,390,506 A
• Filed: 07/30/1993
• Issued: 02/21/1995
• Est. Priority Date: 12/09/1991
• Status: Expired due to Term

• Current Assignee: Daikin Industries Ltd
• Original Assignee: Daikin Industries Ltd
• Inventors: Shima, Kiyoshi, Yoshisaka, Keiichi, Sumida, Hisashi, Sogabe, Masaharu
• Primary Examiner(s): Tanner, Harry B.
• Application Number:
  US08/094,125
• Time in Patent Office: 571 Days
• Field of Search: 62/175, 62/230, 62/298, 62/203, 62/126, 236/51, 236/1 B, 165/22, 165/11.1
• US Class Current: 62/175
• CPC Class Codes: F24F 11/89 Arrangement or mounting of control or safety devices
• CPC Class Codes: G05D 23/1905 associated with tele control

Abstract

An air condition control unit is provided with an EEPROM previously memorizing respectively different specific numbers of indoor control units and power supply means. Further provided thereto are power supply judging means for judging whether a remote controller receives the power from another indoor control unit by monitoring power source lines, and power not-supply determining means for determining the unit of its own to be a unit which does not supply the power to the remote controller when the power supply judging means judges the remote controller receives the power. In addition, provided thereto are power supply timing means for setting a power supply timing based on the specific numbers and power supply determining means for determining the unit of its own to be a unit which supplies the power to the remote controller for making the power supply means supply the power to the remote controller when the power supply judging means judges the remote controller to be in a state that no power is supplied thereto at the power supply timing by the timing means. Consequently, the indoor control units are standardized and the power can be without failure supplied to the remote controller.

Claims

1. In an air conditioning control machine in which a plurality of air conditioning control units are connected to a single controller through wirings and air conditioning operation is controlled by sending and receiving a control signal between the controller and the air conditioning control unit, an electric power supply apparatus of the air conditioning control machine including said air conditioning control units comprising:

number memory means for previously storing different specific numbers in each air conditioning control unit;

power supply means for supplying electric power;

power supply judging means for detecting whether another air conditioning control unit is supplying electric power to the controller by monitoring the wirings;

power control means for determining to not supply electric power to the controller when the power supply judging means detects that the controller receives power;

timing means for setting a power supply time based on the specific number; and

power supply determining means for determining to supply electric power to the controller when the power supply judging means detects that the controller receives no power at the power supply time and for controlling the power supply means to supply power to the controller.

3. The electric power supply apparatus of the air conditioner according to claim 1 or 2, further comprising power supply interruption means for interrupting the power supply when an irregularity of a power source is detected by monitoring the wirings.

2. In an air conditioning control machine in which a plurality of air conditioning control units are connected to a single controller through wirings and air conditioning operation is controlled by sending and receiving a control signal between the controller and the air conditioning control unit, an electric power supply apparatus of the air conditioner including said air conditioning control units comprising:

number memory means for previously storing different specific numbers in each air conditioning control unit;

power supply means for supplying electric power;

power supply judging means for detecting whether another air conditioning control unit is supplying electric power to the controller by monitoring the wirings;

power control means for determining to not supply electric power to the controller when the power supply judging means detects that the controller receives power;

timing means for setting power supply times based on each of plural sectional numbers resulting from the division of the specific number;

fixed power supply means for controlling the power supply means to supply power to the controller at the power supply times; and

power supply determining means for determining to supply electric power to the controller when the fixed power supply means enables the power supply means with respect to all sectional numbers.

4. In an air conditioning control machine in which a plurality of air conditioning control units are connected to a single controller through wirings and air conditioning operation is controlled by sending and receiving a control signal between the controller and the air conditioning control unit, an electric power supply apparatus of the air condition control machine including said air conditioning control units comprising:

number memory means for previously storing different specific numbers in each air conditioning control unit;

power supply means for supplying electric power;

power supply judging means for detecting whether another air conditioning control unit is supplying electric power to the controller by monitoring the wirings;

first power control means for determining to not supply electric power to the controller when the power supply judging means detects that the controller receives power;

timing means for setting power supply times based on each of plural sectional numbers resulting from the division of the specific number;

fixed power supply means for controlling the power supply means to supply power to the controller at the power supply times;

power supply notice means for providing a notice signal of a set voltage when the fixed power supply means begins to supply power;

second power control means for determining to not supply electric power to the controller when a notice signal from another air conditioning control unit is detected by monitoring the wirings;

power supply interruption means for interrupting the power supply from the fixed power supply means at a predetermined time when an irregularity of a power source is detected by monitoring the wirings; and

power supply determining means for determining to supply electric power to the controller when the fixed power supply means enables a normal power supply with respect to all sectional numbers.