KR200443270Y1 - Dual compressor in show case - Google Patents

Abstract

The present invention relates to a showcase refrigerator having a double compression and condensation structure, and more particularly, a relatively small main compressor (and main condenser) and a server compressor (and server condenser) instead of a large compressor used in a conventional large showcase refrigerator. By constructing two independent refrigeration systems by dividing into two, each of the main and server compressors share a certain portion, so the compression efficiency is excellent to compress the refrigerant, and in particular, the compressor by sequentially starting the main compressor and the server compressor during initial operation The present invention relates to a showcase refrigerator that can drastically reduce breakdown and noise caused by excessive compression.

The present invention consists of a compressor, a condenser, a capillary tube, and an evaporator. In particular, in a showcase refrigerator / freezer that sequentially starts a compressor and a condenser into a main part and a server part, the main part is installed at the lower side of the refrigerator to compress the refrigerant circulated from the evaporator. A main refrigeration comprising a compressor (110a), a main condenser (120a) for condensing while dissipating the refrigerant compressed by the main compressor, and a cooling fan (122a) for forcibly heat-exchanging heat radiated from the main condenser with outside air system; A server compressor (110b) installed under the refrigerator and compressing refrigerant circulated from the evaporator, a server condenser (120b) condensing while condensing the refrigerant compressed by the server compressor, and heat radiated from the server condenser A server refrigeration system comprising a cooling fan 122b for forced heat exchange with air; And an operation control unit 124 for sequentially starting the main refrigeration system and the server refrigeration system after a predetermined time delay or in response to a change in the storage room temperature of the showcase.

According to the present invention, showcase refrigeration and low noise, extended life, low replacement cost, flexible and sequential operation, very high compression efficiency and power efficiency, and elasticity to cope with one compressor failure Freezers may be provided.

Showcase, refrigerator, compressor, double

Description

Showcase Refrigeration and Freezer with Double Compression and Condensation {DUAL COMPRESSOR IN SHOW CASE}

1 is a perspective view showing a machine room structure of a conventional refrigerator.

Figure 2 is a perspective view showing a double compression and condensation structure of the showcase refrigerator and freezer according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

110a: main compressor 110b: server compressor

120a: main condenser 120b: server condenser

122a, 122b: cooling fan 124: operation control unit

The present invention relates to a showcase refrigerator and freezer having a double compression and condensation structure, and more specifically, a relatively small main compressor (and main condenser) and a server compressor (instead of the large compressor used in the conventional large showcase refrigerator and freezer). And the server condenser), divided into two independent binary system, each main and server compressor each share a certain portion to compress the refrigerant is excellent, especially in the initial operation of the main compressor and server compressor The present invention relates to showcase refrigerators and freezers that can significantly reduce failure and noise caused by excessive compression of a compressor by sequentially starting.

In general, refrigeration refers to maintaining an object at a temperature lower than the ambient temperature by artificially removing heat from an object or space and maintaining such a low temperature.

Refrigerators using such a refrigeration is a home appliance that is installed inside the refrigeration system so that the cool air generated therefrom is supplied to the storage compartment to maintain the freshness of various foods for a long time. The refrigerator maintains the internal temperature of the refrigerator at a low temperature by changing the state of the refrigerant through the refrigeration system to allow heat exchange.

The refrigeration system is a compression, condensation, expansion and evaporation process is carried out continuously, the component for achieving this process is a compressor for compressing the refrigerant to a high temperature and high pressure, the refrigerant of the high temperature and high pressure to remove heat from the refrigerant of the low temperature and high pressure It consists of a condenser, a capillary tube that depressurizes the high pressure refrigerant to evaporation pressure, and an evaporator that absorbs external heat as the refrigerant is vaporized through the capillary tube.

The compressor, the condenser, the capillary tube, and the evaporator are all connected in series through the refrigerant tube to form a closed circuit, and the refrigerant circulates through the refrigerant tube by the driving force of the compressor.

The refrigeration system configured as described above is sent to the condenser as the refrigerant is a high temperature and high pressure vapor state by the operation of the compressor, the condenser releases the heat of the refrigerant to the outside through heat exchange with the outside to release the refrigerant at low temperature and high pressure The refrigerant condensed at low temperature and high pressure passes through a capillary tube with a small diameter and is evaporated under pressure and enters the evaporator. In the evaporator, the refrigerant is vaporized to absorb heat from the outside of the refrigerator, such as a refrigerator. The inside of the refrigerator, such as a refrigerator is cooled, and the refrigerant heat-exchanged at a low temperature and low pressure is circulated back to the compressor.

1 is a perspective view showing the structure of a conventional refrigerator and a machine room of a refrigerator, wherein a refrigerator having a refrigeration system as described above is provided with an evaporator 11 that is a component of a refrigeration system on a rear surface of the main body 10. The upper side of the evaporator 11 is provided with a blowing fan (11a) for circulating the cold air heat exchanged in the evaporator 11, the lower machine chamber 20 of the main body 10 is a compressor that is a component of the refrigeration system 30 and a condenser are installed, and a cooling fan for forcibly cooling them is provided between the compressor 30 and the condenser.

As such, in the past, a large-size showcase refrigerator / freezer was used with a large-capacity compressor having a large capacity. The large-size compressor consumes a lot of power, is very expensive, has a serious noise during operation, and shows the temperature or the situation of the showcase. The service life is short due to the impossibility of flexible operation control. In particular, when one large compressor breaks down, the entire showcase must be shut down, and the showcase cannot be used in the shop until after the A / S is completed. There was a problem that caused.

The present inventors divide the conventional large compressor into a main compressor and a server compressor, and dually configure the compressor in a sequential startup or elastic operation according to the storage temperature, operating environment, refrigeration capacity, set time delay, and the like. Significantly extends the life, and even if one compressor fails, the compression process can be carried out with the other compressor, which does not interfere with the operation even during after-sales service, replacement costs are low, especially during the initial operation of the refrigerator Rather than overcompressing the compressor, the two main and server compressors, which operate sequentially, resulted in the development of showcase refrigerators and freezers that greatly improved the compression efficiency compared to the power used.

The present invention is devised to solve the above-mentioned problems, the purpose of the present invention is low noise, extended life, low replacement cost, elastic and sequential operation is very high compression efficiency and power efficiency, It is to provide a showcase refrigerator and freezer that can flexibly cope with a compressor failure.

The present invention is devised to achieve the above object, the present invention is composed of a compressor, a condenser, a capillary tube, an evaporator, in particular in the showcase refrigerator and freezer for starting the compressor and the condenser in the main part and the server part sequentially, A main compressor (110a) installed at a lower side to compress the refrigerant circulated from the evaporator, a main condenser (120a) condensing while condensing the refrigerant compressed by the main compressor, and heat radiated from the main condenser A main refrigeration system comprising a cooling fan (122a) for forced heat exchange with; A server compressor (110b) installed under the refrigerator and compressing refrigerant circulated from the evaporator, a server condenser (120b) condensing while condensing the refrigerant compressed by the server compressor, and heat radiated from the server condenser A server refrigeration system comprising a cooling fan 122b for forced heat exchange with air; And an operation control unit 124 for sequentially starting the main refrigeration system and the server refrigeration system after a predetermined time delay or in response to a change in the storage room temperature of the showcase.

Preferably, the operation control unit 124 operates the main refrigeration system first during the initial operation of the refrigerator, and then sequentially operates the server refrigeration system after a predetermined time delay, and the environment of the refrigerator does not require the operation of the compressor. If not, turn off the compressor on the main refrigeration system and the compressor on the server refrigeration system at the same time.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The 'showcase refrigerator and freezer' described herein should be interpreted as a broad concept refrigerator including a refrigerated frozen showcase, a commercial (kitchen) refrigerated freezer, and the like.

Figure 2 is a perspective view showing a double compression and condensation structure of the showcase refrigerator and freezer according to an embodiment of the present invention.

Referring to Figure 2, the showcase refrigerator and freezer according to an embodiment of the present invention is installed under the refrigerator to compress the refrigerant circulated from the evaporator, and the heat dissipating the refrigerant compressed by the main compressor A main condenser 120a for condensing and a cooling fan 122a for forcibly exchanging heat radiated from the main condenser with external air; A server compressor (110b) installed under the refrigerator and compressing refrigerant circulated from the evaporator, a server condenser (120b) condensing while condensing the refrigerant compressed by the server compressor, and heat radiated from the server condenser A cooling fan 122b for forced heat exchange with air; And an operation control unit 124 for sequentially starting the main compressor and the condenser, and the server compressor and the condenser according to the change in the storage room temperature of the showcase.

In other words, the showcase refrigerator / freezer of the present invention is dualized into a main compression / condensation unit and a server compression / condensation unit, and a compression unit and a condensation unit are configured. More specifically, the server refrigeration system including the server compression unit and the server condensation unit separately from the main refrigeration system including the main compression unit and the main condensation unit, the refrigeration system was configured as an independent binary system. Since the main refrigeration system and the server refrigeration system are configured independently including individual capillaries and evaporators, even when one system fails, the other system can operate normally to function as a refrigerator.

The main compressor 110a compresses the refrigerant circulated from the evaporator and forcibly circulates the compressed refrigerant toward the main condenser 120a. The main condenser 120a condenses while radiating the refrigerant compressed by the main compressor 110a. The cooling fan 122a is provided to face the main condenser 120a so as to forcibly heat-exchange heat radiated from the main condenser 120a with the outside air. That is, when the main compressor 110a and the condenser 120a operate, the cooling fan 122a operates to cool the heat radiated from the main condenser 120a by heat exchange with external air.

On the other hand, the server compressor (110b) also compresses the refrigerant circulated from the evaporator, and forcibly circulated the compressed refrigerant toward the server condenser (120b). The server condenser 120b condenses while radiating the refrigerant compressed by the main compressor 110b. The cooling fan 122b is provided to face the main condenser 120b so as to forcibly heat-exchange heat radiated from the main condenser 120b with the outside air.

The operation control unit 124 performs a function of operating and controlling the main compressor / condenser (and the main refrigeration system including the same) and the server compressor / condenser (and the server refrigeration system including the same) installed in a binary manner as described above. . For example, the main compressor / condenser and the server compressor / condenser may be sequentially controlled after a predetermined time delay or according to a change in the storage room temperature and the refrigeration environment of the showcase. Preferably, the operation control unit 124 is configured to operate the main compressor and the condenser first during the initial operation of the refrigerator, and then sequentially operate the server compressor and the condenser after a predetermined time delay or when the predetermined refrigeration capacity is exceeded. . In the related art, only one large compressor was installed and used. In this case, the initial excessive compression operation of the large compressor during initial refrigerator operation imposes a heavy load on the compressor, thereby reducing the life of the compressor. However, according to the present invention, by sequentially starting the relatively compact main compressor / condenser and the server compressor / condenser, it is possible to prevent excessive operation of the compressor to significantly reduce the failure rate. Meanwhile, when the environment of the refrigerator does not require the operation of the compressor, the operation control unit 124 may stop the operation of the main / server compressor and the condenser at the same time.

Although the present invention has been illustrated and described with reference to specific preferred embodiments, the present invention is not limited to the above-described embodiments, and the present invention is not limited to the technical spirit of the present invention. Various changes and modifications will be possible to those skilled in the art. Thus, for example, it will be apparent to one skilled in the art that the showcase refrigerator and freezer shown in the drawings may be modified or modified without departing from the spirit and scope of the present invention, and the present invention is limited only by the claims that follow.

According to the present invention, showcase refrigeration and low noise, extended life, low replacement cost, flexible and sequential operation, very high compression efficiency and power efficiency, and elasticity to cope with one compressor failure Freezers may be provided.

Claims (2)

In a showcase refrigerator and freezer, which is composed of a compressor, a condenser, a capillary tube, and an evaporator, and sequentially starts the compressor and the condenser into a main part and a server part, A main compressor (110a) installed under the refrigerating and freezer to compress the refrigerant circulated from the evaporator, a main condenser (120a) condensing while dissipating the refrigerant compressed by the main compressor, and heat radiated from the main condenser Main refrigeration and freezing system including a cooling fan 122a for forced heat exchange with the outside air; A server compressor (110b) installed under the refrigerator and a freezer to compress the refrigerant circulated from the evaporator, a server condenser (120b) condensing while condensing the refrigerant compressed by the server compressor, and heat radiated from the server condenser. Server refrigeration and freezing system including a cooling fan 122b for forced heat exchange with the outside air; And In the initial operation of the refrigerating and freezer, the main compressor 110a and the main condenser 120a are operated first, and then the main refrigerating and freezing system and the server refrigerating and freezing system are sequentially operated after a predetermined time delay or according to the change of the storage room temperature of the showcase An operation control unit 124 for activating the main control unit 124, wherein the operation control unit 124 operates the main refrigerating / freezing system first during the initial operation of the refrigerating / freezer, and then operates the server refrigerating / freezing system after a predetermined time delay. Showcase refrigerators and freezers, characterized in that the compressor of the main refrigeration and freezing system and the compressors of the server refrigeration and freezing system are simultaneously stopped when the operation of the refrigerator and the freezer does not require the operation of the compressor. delete

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