JP2001339856A - Apparatus for improving power operation rate of home electrical appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for improving power operation rate of home electrical appliance which can fully utilize the power up to the contracted amount of power without increasing the contracted amount of power, also can effectively reduce the number of times of shut-off operation of a main circuit breaker and a sub-circuit breaker, and thereby can improve distinctively the operation rate of home electrical appliance. SOLUTION: An apparatus for improving power operation rate of a home electrical appliance comprises a main circuit breaker which can receive supply of electrical power from an outdoor power distribution line, a plurality of sub- circuit breakers for distributing the electrical power from the main circuit breaker, and a receptacle for re-distributing the electrical power of a plurality of sub-circuit breakers. A current controlling device which can limit a current to the receptacle can be provided between the sub-circuit breaker and the receptacle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for improving the power availability of household appliances. More specifically, the present invention relates to a home appliance, and more particularly to an apparatus for improving the power availability of a relatively large-capacity appliance such as an air conditioner.

[0002]

2. Description of the Related Art FIG. 3 is a block diagram showing a power wiring of a conventional household appliance.

[0003] In the power line of the conventional consumer electronics shown in FIG. 3, is first wiring from outdoor electric pole (not shown) to the main breaker (earth leakage breaker) Icut 0 volume I _0.

[0004] First, from the main breaker Icut 0, is wired to the sub breaker box or sub-phase box Icut 0 volume 1 _1.

[0005] Second, wiring from the main breaker Icut 1 to the sub-breaker box or sub-phase box Icut 2 of the capacity I ₂ .

Third, wiring from the main breaker Icut 0 to a sub-breaker box or sub-phase box Icut 3 having a capacity of I ₃ .

[0007] Next, the sub breaker box or subphase box Icut 1 volume 1 ₁ Consumer Electronics A, household appliances B, is wired to the consumer electronics C.

Similarly, wiring is performed from the sub-breaker box or the sub-phase box Icut 2 having the capacity I ₂ to the household appliance D, the household appliance E, and the household appliance F.

Further, wiring is performed from the sub-breaker box or sub-phase box Icut 3 having the capacity I ₃ to the household appliance G, the household appliance H, and the household appliance I.

[0010] Now, the capacity 1 ₁ sub breaker box or subphase box Icut 1, sub breaker box or subphase box Icut 2 capacity I _2, 1 of the sub breaker box or sub-phase box Icut 3 capacity I ₃ If one set becomes unusable due to a large current flowing due to an accident or overload, the other two sets can be used.

On the other hand, generally, individual household appliances are not operated simultaneously. Therefore, from the viewpoint of using up to the contract power, the sum of the capacities of the respective sub-breaker boxes or sub-phase box breakers is larger than the capacity of the main breaker. That is, the relationship between the sum of the capacities of the respective sub-breaker boxes or sub-phase box breakers and the main breaker is as shown in Equation 1.

I ₀ <1 ₁ + I ₂ + I ₃ (1)

[0013]

In a general household, all household appliances in the household are not operated simultaneously. Therefore, in anticipation of such a situation, it is a fact that a household electric appliance having a breaking current or more is connected to the sub-breaker in the home.

For this reason, if the appliances that consume a relatively large amount of current are turned on at the same time, the related sub-breakers will be cut off. Also, when three sets of sub-breakers are installed as shown in FIG. 3, even if the three sets of sub-breakers each use a current less than the capacity, when the main breaker exceeds the capacity, the main breaker does not operate. It shuts off electricity, which results in the entire house being cut off.

As described above, when the main breaker is cut off, the inside of the home becomes completely dark, and all the home appliances stop operating. As a result, the operation rate of the home appliances greatly decreases. .

Therefore, in such a case, the capacity of each of the sub-breakers is increased, or the capacity of the main breaker is increased (the contract power is increased).

However, when the capacity of each sub-breaker is increased or the capacity of the main breaker is increased (contracted electric power is increased), the equipment investment costs are naturally increased, which is not economical. Further, safety concerns arise due to the increased capacity.

The present invention has been made in view of such a point, and an object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to increase the power up to the contract power amount without increasing the contract power amount. A power consumption improvement device for household appliances that can be fully used and effectively reduce the number of times that the main breaker and sub-breaker are shut off, thereby significantly improving the utilization ratio of household appliances To provide.

[0019]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a main breaker capable of receiving power from an outdoor power distribution line, a plurality of sub-breakers capable of distributing power from the main breaker, and a plurality of sub-breakers. An apparatus for improving the power utilization rate of a household appliance comprising an outlet capable of redistributing power of a sub-breaker, comprising a current control device capable of limiting a current to the outlet between the sub-breaker and the outlet. An apparatus for improving the power utilization rate of household appliances, characterized in that:

In the present invention, the current control device is preferably constructed so as to be controlled by a control signal from a load current monitoring and control device provided between the main breaker and the plurality of sub-breakers.

That is, according to the present invention, the current control device is installed at the subsequent stage of the sub-breaker, and the current passing through the current control device is constantly monitored. It is configured to limit the current to a particular household appliance connected after the device.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an apparatus for improving the power utilization rate of household appliances according to the present invention will be described.

Most non-inverter-type home appliances, such as lighting equipment and televisions, do not exhibit required performance unless a certain amount of power is used in an operating state.

On the other hand, some non-inverter household appliances, for example, electric pots, which can operate with only a long boiling time even when the power consumption is limited, can be used. is there.

On the other hand, inverter-type household appliances, which have recently been used in various fields,
For example, an inverter-type air conditioner or the like can operate even if power consumption is limited in principle, although its capacity (heat capacity of cooling and heating) is reduced.

This inverter type air conditioner consumes a lot of electric power for cooling or heating rapidly at the start of operation.

Therefore, according to the present invention, the power distribution capability of the main breaker and the plurality of sub-breakers and the operation status of household appliances connected to the respective sub-breakers are monitored.
It is configured so that the power consumption of a specific household appliance, for example, an invar air conditioner, can be effectively limited. The thus configured home electric appliance power operation rate improving device of the present invention can efficiently use the electric power up to the contract electric energy without increasing the contract electric energy, and The operation rate can be significantly improved.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a power utilization rate improving apparatus for household appliances according to the present invention will be described.

(First Embodiment) FIG. 1 is a partial wiring block diagram of an apparatus for improving the power availability of a household appliance according to a first embodiment of the present invention.

As can be seen from FIG. 1, the power utilization rate improving apparatus for household appliances according to the first embodiment of the present invention has the same basic configuration as the power wiring of the conventional household appliances shown in FIG. .

[0031] It is a feature of the power utilization rate improving apparatus of household appliances of the first embodiment of the present invention has established a current control device after the sub breaker capacity 1 _1, and individually from the current control device Are connected individually to the household appliances A, B, and C (each outlet in an actual indoor distribution line).

In FIG. 1, a load of household appliances A,
B and C may be given a weight difference. For example, the home appliances B and C can be supplied with power as required by those devices, and the current I _A flowing through the home appliance A can be limited. Moreover not constant the current I _A flowing to the consumer electronics A when the cutoff current of the sub-breaker and Icut 1, I _B + I
_C It can be changed by load fluctuation. That is, the current I _A flowing to the consumer electronics A can also be made to satisfy the two equations.

[0033] The contract power amount by the structure described above is the power utilization rate improving apparatus of household appliances of the first embodiment of _{I A <I B + I C} ............... (2 expression) invention It is possible to effectively suppress the interruption of the sub-breaker without raising the power, and thereby to efficiently use electricity up to the contract power amount.

(Second Embodiment) FIG. 2 is a wiring block diagram of a device for improving the power utilization rate of home appliances according to a second embodiment of the present invention.

As can be seen from FIG. 2, the power utilization rate improving device for household appliances according to the second embodiment of the present invention has the same basic configuration as the power wiring of the conventional household appliances shown in FIG. .

A feature of the apparatus for improving the power availability of a household appliance according to the second embodiment of the present invention is that, as shown in FIG. 2, the current controller is a current controller (load current monitor).
If, then 2 minutes with a current control device (current limiting unit), is that which is adapted to control only the current I _A to a particular consumer electronics A.

In this case, the function of the current control device itself can be incorporated in the household electric appliance A, thereby increasing its added value.

(Third Embodiment) An apparatus for improving the power availability of a household appliance according to a third embodiment of the present invention does not limit the current to a specific household appliance variably but completely. It shuts off and returns again.

For example, the television is turned off at the moment when the microwave oven is operated. When the operation of the microwave oven is completed, the television is turned on again.

In this case, there is an inconvenience that the television is temporarily invisible, but on the other hand, household appliances other than the above-mentioned inverter type air conditioner and electric pot can be controlled.

(Fourth Embodiment) An apparatus for improving the power utilization rate of a household appliance according to a fourth embodiment of the present invention sets a plurality of household appliances whose current is limited, and sets the plurality of household appliances. , And the current is sequentially limited (or cut off) when the current used increases.

For example, the refrigerator operates ON / OFF. However, even if the refrigerator is turned ON for a few minutes to several tens minutes, it does not cause a serious problem. Therefore, in the apparatus for improving the power availability of a household appliance according to the fourth embodiment of the present invention, a refrigerator or the like can be set as the household appliance for limiting (or cutting off) the current first.

Next, an invertor-type air conditioner is set as a household appliance for limiting (or cutting off) the current next to the refrigerator.

On the other hand, the current is limited (or cut off) until the end.
Set the illuminator as a household appliance that would otherwise be a problem.

Note that microcomputers and the like are used in recent air conditioners, and relatively complicated control is possible. Therefore, when the home appliance is an air conditioner using a microcomputer or the like, a so-called sequence in which the current is given to the current control device in advance as information, and the current of the refrigerator having the lower limit priority is interrupted before the air conditioner is energized. Control is also possible.

As an extension of the idea described in the preceding paragraph, a programmable distribution board system can be used instead of a conventional combination of a main breaker that can be cut off with a single current capacity and a sub-breaker at the subsequent stage.

[0047]

According to the present invention, the apparatus for improving the power utilization rate of household appliances can effectively reduce the number of times the main breaker or sub-breaker is cut off in a home other than an electrical accident without increasing the contracted power amount. Thereby, the operation rate of household appliances can be significantly improved, and is industrially useful.

[Brief description of the drawings]

FIG. 1 is a partial wiring block diagram of an apparatus for improving a power availability of a household appliance according to a first embodiment of the present invention.

FIG. 2 is a wiring block diagram of an apparatus for improving a power availability of a household appliance according to a second embodiment of the present invention.

FIG. 3 shows a block diagram of power wiring of a conventional household appliance.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Toshimitsu Sukekawa 4-10-1, Kawajiri-cho, Hitachi-shi, Ibaraki F-term in Toyoura Plant of Hitachi Cable, Ltd. F-term (reference) 5G066 KA01 KA11 KD01

Claims (2)

[Claims] A main breaker capable of receiving power from an outdoor distribution line; a plurality of sub-breakers capable of distributing power from the main breaker; and an outlet capable of redistributing power of the plurality of sub-breakers. A power utilization rate improvement device for a household appliance, wherein a current control device capable of limiting a current to the outlet is installed between the sub-breaker and the outlet. Upgrade equipment. 2. The current control device according to claim 1, wherein the current control device can be controlled by a control signal from a load current monitoring and control device provided between the main breaker and the plurality of sub-breakers. For improving the power utilization rate of household appliances.