JPS6038569A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides, in a refrigerator having two condensers arranged in series, the heating capacity obtained by the first condenser by adjusting the air volume of the second condenser with an air-cooled condenser. Regarding a refrigerator that can be adjusted.

Conventionally, as this type of refrigerator, the one shown in FIG. 1 is known. In FIG. 1, 1 is a compressor, 3 is a first condenser, 3 is a second condenser equipped with a blower, 4 is an expansion valve, and 4 is an evaporator.

Next, the operation will be explained. The refrigerant compressed in the compressor 1 is condensed in the first condenser 1 and the second condenser 3, reduced in pressure by the expansion valve S, evaporated in the evaporator 6, and returned to the 1 compressor 1 to form a refrigerator.

Usually, in the evaporator, cold water or cold air is extracted and used for cooling. Further, in the first condenser, hot water or hot air is taken out and used for heating.

Conventional refrigerators control the capacity of the compressor according to the cooling load.
In order to cope with the load, the heating capacity from the first condenser was taken out at random.

This invention was made in order to eliminate the above-mentioned conventional drawbacks, and provides a refrigerator in which the second condenser is provided with a plurality of blowers or a variable airflow blower, and the heating capacity can be adjusted by adjusting the airflow of the blower. is intended to provide.

Hereinafter, embodiments of the refrigerator of the present invention will be described with reference to the drawings. FIG. 2 is a refrigerant circuit diagram showing the configuration of one embodiment of the present invention. When explaining the configuration of FIG. 2, the same parts as in FIG. Only the parts that are different from Figure 1 will be described.

As is clear from comparing this Figure 2 with Figure 1,
In the figure, a plurality of blowers are provided in the second condenser J, and the other configurations are the same as in FIG. 1.

Next, the operation of the refrigerator of this invention will be explained. The refrigerant compressed in the compressor 1 is condensed in the second condenser 3, which is equipped with a first condenser and a blower, is depressurized by the first expansion valve S, is evaporated in the evaporator 6, and is returned to the compressor 1 to be used in the refrigerator. Configure.

When the cooling capacity obtained by the evaporator 6 becomes excessive for the cooling load, the capacity of the compressor is controlled. The condensing capacity obtained at this time is distributed to the first condenser J and the second condenser J, but the heating capacity obtained in the first condenser is lower than the heating capacity before controlling the capacity of the compressor. Therefore, it becomes too small for the heating load.

At this time, by stopping the necessary number of blowers among the plurality of blowers provided in the second condenser 3, the first condenser λ
and the distribution ratio of condensing capacity to the second condenser 3 can be changed.

In other words, by stopping the necessary number of blowers,
It becomes possible to keep the heating capacity obtained from the first condenser constant.

In the above embodiment, a plurality of air blowers are provided in the second condenser 3 and the required number of blowers are stopped to adjust the air volume and distribute the condensing capacity between the first condenser and the second condenser 3. Although the rate was changed, the same effect can be obtained by providing a variable air volume blower instead of providing a plurality of blowers.

As described above, according to the refrigerator of the present invention, since the second condenser is used as an air-cooled condenser and its air volume is adjusted, the distribution ratio of condensing capacity between the first condenser and the second condenser can be adjusted. Since the heating capacity can be changed, the heating capacity obtained from the first condenser can be arbitrarily adjusted.

[Brief explanation of the drawing]

FIG. 1 is a refrigerant circuit diagram of a conventional refrigerator, and FIG. 2 is a refrigerant circuit diagram of an embodiment of the refrigerator of the present invention. K...Compressor, K...First condenser, 3...Second condenser, D...Blower, S...Expansion valve, 6...Evaporator. Note that the same reference numerals in the drawings indicate the same parts or parts corresponding to I-i. Agent Masuo Oiwa (and 2 others) 1ffi 3 Otsuo 2 Diagram

Claims (1)

[Claims] A refrigerator having two condensers arranged in series, wherein one of the two condensers arranged in series is an air-cooled condenser, and this air-cooled condenser is provided with an air volume adjustment means. refrigerator.