KR970004340B1 - Cooling accumulative type refrigerator for automobile - Google Patents

Abstract

The regenerative cool air refrigerator for an automobile is capable of continually operating a compressor during the day to perform a regenerative cool air operation for a phase-change material and of making the refrigerator in a cool state with the regenerative cool air during the night. The regenerative cool air refrigerator comprises: a regenerative cool air chamber in which the phase-change material is contained, having a circulating hole connected to the lower portion of an evaporator on the one side thereof and a connecting hole connected to the lower portion of a refrigerating chamber on the other side thereof; a regenerative cool air duct for connecting a regenerative cool air hole of an evaporating chamber and the regenerative cool air chamber; discharge and intake dampers for opening/closing a discharge hole and an intake hole formed on a separating wall; a connecting damper for opening/closing the connecting hole; and a regenerative cool air damper for opening/closing the regenerative cool air hole.

Description

Refrigerated Car Refrigerator

The accompanying drawings are schematic diagrams of the present invention.

* Description of the symbols for the main parts of the drawings *

100: refrigerator compartment 110: partition wall

200: evaporation chamber 210: circulation fan

300: cold storage chamber 310: phase change material

320: cold storage duct 400: compressor

430: evaporator H1: discharge port

H2: suction port H3: cold storage port

H4: Connection port H5: Circulation port

D1: discharge damper D2: suction damper

D3: Cold storage damper D4: Connection damper

The present invention relates to a refrigerator, and in particular, to provide a cold storage chamber communicating with the refrigerating chamber and the evaporation chamber and having a phase change material to supply cold air of the evaporation chamber to the refrigerating chamber when the refrigerating chamber is a high temperature, and to supply cold air to the refrigerating chamber when the refrigerating chamber is a low temperature. Thus, when the phase change material of the cold storage chamber is completed the cold storage is related to a cold storage automotive refrigerator to maintain the refrigerator compartment temperature by the cold storage in the state in which the evaporator is stopped operating.

The present invention is also suitable for a vehicle that operates the compressor of a refrigeration cycle device while the vehicle is running, alternately refrigerating and refrigerating the refrigerating compartment and the refrigerating compartment with an evaporator and stopping the operation of the compressor in the stopped state. It relates to a refrigerator for an automobile.

In general, refrigerators utilizing the principle of a refrigeration cycle apparatus are carried out continuously in a cycle of compression and condensation and expansion and evaporation. On the other hand, the cycle stops when the refrigerating compartment of the refrigerator is sufficiently cooled and otherwise operates. At this time, the operation noise of the compressor is particularly serious in the above process, and if the refrigerator is used in a living space such as a bedroom or a living room, inconvenience caused by the noise is serious.

On the other hand, these days, there is a case where a small refrigerator is mounted on a car and used. At this time, a heat exchange occurs in the evaporator by driving a compressor with the power of the car for refrigeration. However, when the car was parked, the compressor consumed a lot of battery power as it continued to operate the compressor.

An object of the present invention has been made in view of the above point, in particular, by continuing to operate the compressor during the day time to accumulate the phase-change material and to refrigerate the refrigerator by the cold storage during the night time significantly reducing the number of operation of the compressor at night It is to provide a car-cooled refrigerator for preventing the noise.

Another object of the present invention is to provide a refrigerator in which an electric vehicle is drastically reduced in power consumption by continuously operating a compressor while driving an automobile to accumulate phase change material, stopping a compressor operation during a parking time, and refrigerating the refrigerator by storing the refrigerator.

The present invention for achieving the above object comprises a refrigerating chamber and the evaporator chamber having a refrigerating chamber and an evaporator and a circulation fan at the boundary of the partition wall, one side forms a circulation port in communication with the lower part of the evaporation chamber and the other side is in communication with the lower part of the refrigerating chamber. A cold storage chamber having a phase change material formed with a connector, a cold storage duct connecting the cold storage chamber perforated directly above the circulation fan of the evaporation chamber and the cold storage chamber, and a discharge hole for opening and closing the discharge port and the suction port perforated in the partition wall. And a damper and a suction damper, a connection damper for opening and closing the connection port, and a storage cooling damper for opening and closing the storage cooling port.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The accompanying drawings are a system diagram of the present invention, wherein the refrigerating chamber 100 and the evaporation chamber 200 are formed at the boundary of the separation wall 110 and the evaporator 200 is provided with an evaporator 430 and a circulation fan 210. In a state in which a refrigeration cycle is configured with the compressor 400, the condenser 410, and the capillary tube 420, a circulation port H5 connected to the lower portion of the evaporator is formed on one side and connected to the lower side of the refrigerating chamber 100 on the other side. A cold storage chamber 300 having a connector H4 is provided to fill the cold storage chamber 300 with an aqueous sodium chloride solution or an aqueous calcium chloride solution contained in a sealing pack such as a phase change material 310. Meanwhile, the cold storage port H3 is drilled in the evaporation chamber 200 directly above the circulation fan 210, and the cold storage port H3 and the cold storage chamber 300 are connected to the cold storage duct 320. In addition, a discharge damper (D1) and a suction damper (D2) for opening and closing the discharge and suction inlet (H1) (H2) formed in the upper and lower portions of the separating wall 110, and the storage cooling damper (H3) for opening and closing it Provide (D3). In addition, the connector (H4) is provided with a connection damper (D4) for opening and closing it, and in the refrigerating chamber (300) measures the temperature thereof, when the cold storage is completed, close the refrigerating damper (D3) and open the connection damper (D4). At the same time, the temperature sensor 330 for stopping the operation of the compressor 400 and driving the circulation fan 210 is installed.

Referring to the refrigeration process of the present invention configured as described above are as follows.

First, when the temperature of the refrigerating chamber 100 sensed by the temperature sensor 130 rises above a predetermined temperature, a microcomputer (not shown), which is a control unit, operates the compressor 400 to configure a refrigeration cycle. At the same time, the discharge damper (D1) and the suction damper (D2) are opened, the cold storage damper (D3) and the suction damper (D2) are opened, the cold storage damper (D3) and the connection damper (D4) are closed, and the circulation fan (210). By operating the heat exchange occurs in the evaporator 430 while the cold air circulates like a solid arrow, the process of supplying cold air to the refrigerating chamber 100 is repeated. Thus, when the temperature of the refrigerating chamber 10 sensed by the temperature sensor 130 falls below a certain temperature, the microcomputer closes the discharge and suction dampers D1 and D2 while the refrigeration cycle device is in operation, and the cold storage damper D3. After opening the cold air is supplied to the cold storage chamber 300 through the cold storage port (H3) and the cold storage duct 320 in the direction of the dotted arrow and then circulated to the evaporator 430 via the circulation port (H5). In this process, the phase change material 310 is cooled and cooled. At this time, the connection damper D4 and the discharge and suction dampers D1 and D2 are closed.

In addition, when the temperature of the refrigerating chamber 100 sensed by the temperature sensor 130 during the time of cold storage rises above a certain temperature, the microcomputer closes the cold storage damper D3 in the same manner as the refrigeration process in the operation state of the refrigeration cycle device to cool the cold storage. Stop and open the discharge and suction dampers (D1) and (D2) to supply the cool air on the cooler side to the refrigerating chamber. When the temperature of the refrigerating chamber falls below a predetermined temperature, the refrigerating is performed by closing the suction and discharge dampers D1 and D2 and opening the cold storage damper D3. As described above, when the cold storage and the refrigeration are alternately performed, the cold storage of the phase change material 310 of the cold storage chamber 30 is completed. When the cold storage is completed as described above, the temperature sensor 330 checks this and informs the microcomputer of the refrigerator. When the cold storage is confirmed, the microcomputer stops the operation of the compressor 400 and discharges the damper D1 and the connection damper ( D4) is opened and the cold storage damper D3 and the suction damper D2 are closed.

When the circulation fan 210 is operated in the above state, the cold air of the refrigerating chamber 100 is introduced into the refrigerating chamber 300 through the connector H4 and then circulated in a cooled state by exchanging heat with the phase change material 310. It is discharged to the discharge port H1 through the sphere H5 and the evaporation chamber 200 to circulate the refrigerating chamber 100. Thus, even when the compressor 400 is stopped and there is no heat exchange action of the evaporator, the phase change material 310 that has been cooled can maintain the temperature of the refrigerating chamber at a desired low temperature by the heat exchange action.

As described above, according to the present invention alternately refrigeration and cold storage, and when the cold storage is completed, as the heat exchanger to the cold storage in the state in which the compressor is in operation, the compressor is continuously operated while the vehicle is running to supply the freezer cold air as well as to cool the phase change material. And when parking the refrigerator by using the cold storage to cool the refrigerator has the effect of reducing the electrical consumption of the battery.

In addition, as the refrigerator is continuously operated during the day to cool the phase change material and the temperature is maintained by the storage at night, the refrigerator installed in the room does not generate noise due to the operation of the compressor at night.

Claims (1)

In the evaporation chamber having a refrigerating chamber, an evaporator, and a circulation fan at the boundary of the dividing wall, one side forms a circulation port communicating with the lower part of the evaporation chamber, and the other side forms a connection port communicating with the lower part of the refrigerator compartment, and an aqueous solution of calcium chloride therein. Or a cold storage chamber hermetically containing sodium chloride aqueous solution, a cold storage duct connecting the cold storage chamber perforated directly above the circulation fan of the evaporation chamber and the cold storage chamber, a discharge damper for opening and closing the discharge port and the suction port perforated in the dividing wall. And a damper, a connection damper for opening and closing the connection port, and a cold storage damper for opening and closing the storage cooling port.