Refrigeration – Automatic control – Refrigeration producer
Patent
1998-04-27
2000-04-25
Tanner, Harry B.
Refrigeration
Automatic control
Refrigeration producer
622284, 236 51, 307 39, F24F 1102
Patent
active
060530014
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION
This invention relates to a control apparatus for controlling a total amount of the power consumption by decreasing an ability of the operation of an air conditioner so that total power will not exceed a predetermined value, when power of home use is increased.
BACKGROUND OF THE INVENTION
Typical control apparatuses of the type mentioned above, called demand controllers, for example, are disclosed in Japanese Patent Unexamined Publication (KOKAI) Nos. 5-164376/93, 7-55225/95, and 5-95629/93. The control apparatuses disclosed in these publications are all constructed such that a signal requesting a demand (reduction of power) is supplied to an air conditioner from the control apparatus through a wire or line.
In case a signal requesting a demand is supplied to an air conditioner through a line, the work for wiring a signal line is accompanied. In consideration of an outward appearance of the wiring, it is customary that such a signal line is wired while the work for constructing a new house is undergoing, and it is rare that a demand control apparatus is installed after the completion of construction of a new house and installation of the demand control apparatus after the new house is completed is prohibited.
In view of the above problem, the present invention provides a control apparatus like a demand controller which can be installed after a completion of construction of a new house, in which a radio wave communication hardly attenuated in the wall and an infrared signal capable of easily communicating with an air conditioner without a need of a provision of any additional device are used in combination.
DISCLOSURE OF THE INVENTION
According to the present invention, there is provided an apparatus for controlling an air conditioner capable of obtaining power from at least one of a plurality of power delivery lines connected to an individual circuit breaker, wherein the apparatus comprises a demand control unit for converting a restriction signal for restricting an electric current flowing to the circuit breaker so as not to exceed a target current value into a radio signal composed of a predetermined format and then transmitting the same, and a control unit for performing a modification in a way to reduce power consumption of the air conditioner when the restriction signal from the demand control unit is judged to be effective due to a coincidence of the format.
With the above-mentioned construction, there can be obtained a control apparatus of a demand control without a need of a provision of a signal line.
In another aspect of the invention, there is also provided an apparatus for controlling an air conditioner capable of obtaining power from at least one of a plurality of power delivery lines connected to an individual circuit breaker, wherein the apparatus comprises a demand control unit for converting a restriction signal for restricting an electric current flowing to the circuit breaker so as not to exceed a target current value, into a radio signal composed of a predetermined format and then transmitting the same, a restriction signal converter for converting the restriction signal from the demand control unit into an infrared signal and transmitting the same when the restriction signal from the demand control unit is judge to be effective due to a coincidence of the format, a remote controller for transmitting a drive signal for controlling operation of the air conditioner with use of an infrared signal, and a control unit for performing a modification with respect to the signal from the restriction signal converter in a way to reduce power consumption of the air conditioner by judging the infrared signal transmitted from the remote controller and the infrared signal transmitted from the restriction signal converter both to be effective.
With the above-mentioned construction, it becomes possible to control the air conditioner by interrupting into the signal from the remote controller of the air conditioner without a need of a provision of a signal line.
In
REFERENCES:
patent: 5207071 (1993-05-01), Ozu et al.
patent: 5390206 (1995-02-01), Rein et al.
patent: 5462225 (1995-10-01), Massara et al.
patent: 5595342 (1997-01-01), McNair et al.
Fujinaka Kazuhito
Fujisawa Toru
Hirose Hiroshi
Ishihara Manabu
Isobe Tomonori
Sanyo Electric Co,. Ltd.
Tanner Harry B.
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