JP2005069671A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator which enables the simplification of the refrigerator manufacturing process and the easy maintenance of the refrigerator by installing a freezing unit for cooling the inside of a refrigerating chamber so that the unit can be separated from the refrigerating chamber. <P>SOLUTION: A refrigerator comprising a cabinet which is provided with a refrigerating chamber in which a refrigerated article is stored and a machinery room isolated from the refrigerating chamber and to which a door for opening/closing the refrigerating chamber is attached, and a freezing unit for supplying cold air to the refrigerating chamber, which is installed in the machinery room so that the unit can be separated from the machinery room and with which mechanisms for conducting a freezing cycle of compression, condensation, expansion and evaporation are integrated. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a refrigerator, and more particularly to a refrigerator that simplifies the manufacturing process of the refrigerator and allows easy maintenance of a refrigeration unit for cooling a refrigerator compartment.

  As shown in FIGS. 10 and 11, the conventional refrigerator has a refrigerator compartment 12 in which a refrigerator is stored, a main body 10 with a door 19 attached to the front, and an interior of the refrigerator compartment 12. In order to cool, the compressor 32, the condenser 33, the expansion valve 34, the evaporator 42, and the like are each configured to include the refrigeration unit 20 configured to be connected to the refrigerant pipe 5.

  The refrigeration unit 20 includes a compressor 32, an expansion valve 34, a condenser 33, and a condenser fan 36 for radiating the refrigerant inside the condenser 33. A circulation fan 44 that is installed in the machine room 14 that is blocked by the refrigerating chamber 12 and the partition wall 15 and circulates the air cooled while passing through the evaporator 42 and the evaporator 42 inside the refrigerating chamber 12. The low temperature part 140 including it was installed inside the refrigerator compartment 12.

  In the conventional refrigerator configured as described above, the low-temperature and low-pressure gas refrigerant is changed into the high-temperature and high-pressure gas refrigerant in the compressor 32, and the high-temperature and high-pressure gas refrigerant that has passed through the compressor 32 in the condenser 33 is high-temperature. The high-temperature and high-pressure liquid refrigerant that has passed through the condenser 33 by the expansion valve 34 is changed to a low-temperature and low-pressure liquid refrigerant, and the low-pressure and low-pressure refrigerant that has passed through the expansion valve 34 by the evaporator 42. The liquid refrigerant absorbs heat around the evaporator 42 while changing to a gaseous state. The air passing through the evaporator 42 is cooled by such a refrigeration cycle, and the cooled air cools the inside of the refrigerator compartment 12 while circulating through the inside of the refrigerator compartment 12 by the circulation fan 44.

  Hereinafter, the manufacturing process of such a conventional refrigerator will be described with reference to FIGS.

First, as shown in FIG. 12, the iron plate 13 is formed into a predetermined shape by cutting and punching using the shape processing device 60, and the formed iron plate 13 is applied to the coating device as shown in FIG. Paint by passing 70.
Next, as shown in FIG. 14, the refrigerator main body 10 is constructed by assembling the processed plurality of iron plates, and an inner case 11 made of an injection molded product or processed iron plate is formed inside the main body 10. By inserting and installing the partition wall 15 inside the main body 10, the refrigerator compartment 12 and the machine room 14 are formed inside the main body 10.

  Thereafter, as shown in FIG. 15, a foam material for heat insulation is injected into the main body 10 using a foam material injection device 80 and sufficiently heated. Next, as shown in FIG. 16, the refrigeration unit 20 is installed inside the main body 10, and a door 19 for opening and closing the refrigerating chamber 12 is attached to one side of the main body 10. finish.

  However, in such a conventional refrigerator, the high temperature part 30 (that is, the compressor 32, the expansion valve 34, and the condenser 33) of the refrigeration unit 20 is installed in the machine room 14 isolated from the refrigerator compartment 12, and the low temperature Since the unit 40 (i.e., the evaporator 42) is installed in the refrigerator compartment 12, the high temperature part 30 and the low temperature part 40 are separately manufactured in the refrigerator assembly process, and then the refrigerator compartment 12 and the machine room are prepared. Therefore, there is a problem that the manufacturing process of the refrigerator is complicated.

  In addition, when maintenance of the refrigeration unit 20 is required during manufacture or use of the refrigerator, it is difficult to separate and repair only the refrigeration unit 20 from the main body 10 of the refrigerator. There was a problem that working time and cost increased.

  The present invention has been made in view of such conventional problems, and simplifies the manufacturing process of a refrigerator by installing a refrigeration unit integral for cooling the inside of the refrigerator compartment so as to be separable from the refrigerator compartment. An object of the present invention is to provide a refrigerator capable of easily performing maintenance of the refrigerator.

  In order to achieve such an object, a refrigerator according to the present invention includes a refrigerator room in which a refrigerator is stored and a machine room that is isolated from the refrigerator room, and a door that opens and closes the refrigerator room is mounted. Refrigeration for supplying cold air to the refrigerating room, which is integrally formed with a cabinet and each mechanism for performing a refrigeration cycle of compression, condensation, expansion and evaporation, which is installed in the machine room so as to be separable from the machine room. And a unit.

  In the first embodiment of the refrigerator according to the present invention, a refrigeration unit 200 in which a compressor 210, a condenser 220, an expansion valve and an evaporator 230 are integrated is connected to a machine room 130 that is cut off from the refrigeration room 112. In order to simplify the manufacturing process of the refrigerator, when the abnormality occurs in the refrigeration unit 200 during manufacture or use of the refrigerator, only the refrigeration unit 200 can be separately separated and repaired. By doing, it has the effect that the working time and expense concerning the maintenance of a refrigerator can be reduced.

  In the first embodiment of the refrigerator according to the present invention, the cabinet 100 that forms the refrigerator compartment 112 and the machine room 130 of the refrigerator is simply manufactured by two plates, the first and second plates 110 and 120. The manufacturing process of the refrigerator is simple and the cost can be reduced.

  In the second embodiment of the refrigerator according to the present invention, the first plate 211 is bent in order to manufacture the cabinet 200, but the second plate 221 may be formed in a simple plate shape. Therefore, since the number of steps is reduced as compared with the first embodiment of the present invention, the productivity is further improved.

Hereinafter, the best mode for carrying out a refrigerator according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the first embodiment of the refrigerator according to the present invention has a refrigerator room 112 in which a refrigerator is stored and a machine room 130 formed separately from the refrigerator room 112, The cabinet 100 to which the door 119 is attached, and the mechanism that is installed in the machine room 130 so as to be separable from the machine room 130 and that integrally performs the refrigeration cycle of compression, condensation, expansion, and evaporation are integrally configured. And a refrigeration unit 200 that supplies cold air to the refrigerator compartment 112.
The cabinet 100 includes a first plate 110 bent to form an upper side wall 114 of the refrigerating chamber 112 and left and right side walls 116 of the refrigerating chamber 112 and the machine chamber 130, and the first plate 110. A second plate 120 coupled to the rear side and bent to form a rear wall 122 of the refrigerator compartment 112 and a partition wall 124 that partitions the refrigerator compartment 112 and the machine compartment 130. (See FIG. 6).
Further, the partition wall 124 has a cold air flow inlet 126 as a first hole through which cold air flows from the machine room 130 into the refrigerating room 112, and air flows from the refrigerating room 112 into the machine room 130. Air circulation ports 128 are formed as two through holes, respectively.
In addition, the first and second plates 110 and 120 have a structure in which at least two panels are bonded together, and a foam material 303 for heat insulation is interposed between the panels.
The refrigeration unit 200 is fixed to the lower surface of the partition wall 124 and communicates the machine room 130 with a first chamber 131 communicating with the outside, a cold air flow inlet 126 and an air circulation port 128 of the partition wall 124. And a casing 136 that is partitioned into a second chamber 132 that is sealed from the outside. The compressor 210 that compresses the refrigerant in the first chamber 131 and the refrigerant compressed by the compressor 210 are liquefied. A condenser 220, an expansion valve (not shown) that changes the high-temperature and high-pressure refrigerant liquefied by the condenser 220 into a low-temperature and low-pressure refrigerant, and the condenser 220 installed adjacent to the condenser 220. A condenser fan 242 for dissipating the refrigerant is installed, and the second chamber 132 absorbs ambient heat while vaporizing the low-temperature and low-pressure liquid refrigerant that has passed through the expansion valve. A generator 230 and a circulation fan 244 for supplying air around the evaporator 230 to the inside of the refrigerator compartment 112 are installed, and the condenser fan 242 and the circulation fan 244 are driven by a drive motor 240, The bottom surface of each component of the refrigeration unit 200 is supported by the base plate 133. On the other hand, a front cover 135 having a vent hole 138 is installed on the front surface of the machine chamber 130 so that external air flows into the first chamber 131.
The drive motor 240 is fixed to the casing 136, a pair of rotating shafts 246 are extended to the first chamber 131 and the second chamber 132, respectively, and the condenser fan 242 and the circulation fan 244 are Coupled to the pair of rotating shafts 246, respectively.

Hereinafter, the effect | action of the refrigerator of 1st Embodiment which concerns on this invention comprised in this way is demonstrated.
First, when the refrigeration unit 200 installed on the upper surface of the base plate 133 is inserted into the machine chamber 130 formed below the partition wall 124 of the second plate 120, the casing 136 and the partition wall 124 are separated. A second chamber 132 that is in contact with and sealed from the outside is formed, and the second chamber 132 and the refrigeration chamber 112 communicate with each other via the cold air inlet 126 and the air circulation port 128 of the partition wall 124, A circulation channel is formed.

  Next, when power is applied and operation is started, the refrigerant compressed by the compressor 210 dissipates heat in the condenser 220 and is condensed, and the condensed refrigerant flows into the evaporator 230 through the expansion valve, The heat around the evaporator 230 is absorbed. Next, the air inside the refrigerating chamber 112 flows into the second chamber 132 through the air circulation port 128 by the circulation fan 244, is cooled through the evaporator 230, and then passes through the cold air flow inlet 126. By flowing into the refrigerator compartment 112, the inside of the refrigerator compartment 112 is cooled.

  On the other hand, when maintenance of the refrigeration unit 200 is performed, the refrigeration unit 200 is easily separated from the machine room 130 of the cabinet 100 by separating the front cover 135 and pulling the base plate 133 forward.

  Hereinafter, a process of manufacturing the first embodiment of the refrigerator according to the present invention will be described with reference to FIGS.

  As shown in FIG. 2, the first panel 101 forming the inner surface of the cabinet 100 and the second panel 102 forming the outer surface are respectively supplied to the supply roller 301 and passed through the foam supply device 302. A foam material 303 is interposed between the first and second panels 101 and 102 for heat insulation. Next, the first and second panels 101 and 102 are pressed together by passing through a press device 304 and cut into an appropriate size by a cutting device 305, whereby the first and second plates 110 and 120 are cut. A panel 103 for manufacturing the above is completed.

  Thereafter, as shown in FIG. 3, a V-shaped bent groove 104 having an internal angle of right angle is formed on the panel 103 by the shape processing device 306.

  Next, as shown in FIG. 4, the panel 103 in which the two bent grooves 104 are formed is bent with reference to the bent grooves 104, so that the upper wall 114 of the refrigerator compartment 112 and the refrigerator compartment are arranged. The first plate 110 that forms the left and right side walls 116 of the machine room 130 is completed.

  Further, as shown in FIG. 5, the panel 103 in which one bent groove 104 is formed is bent with reference to the bent groove 104, so that the rear side wall 122 of the refrigerator compartment 112 and the refrigerator The second plate 120 constituting the partition wall 124 that partitions the chamber 112 and the machine chamber 130 is completed.

  Thereafter, as shown in FIGS. 6 and 7, the first and second plates 110 and 120 are assembled to each other and the refrigeration unit 200 and the door 119 are installed to complete the refrigerator manufacturing process. To do.

  Hereinafter, a second embodiment of the refrigerator according to the present invention will be described with reference to FIG. 8 and FIG. 9, but the same parts as those of the first embodiment described above are denoted by the same reference numerals, and description thereof will be omitted.

  That is, as shown in FIGS. 8 and 9, the cabinet 300 forming the appearance of the refrigerator has an upper wall 314, a rear wall 322, and a partition wall 324 that partitions the refrigerator room 112 and the machine room 130. And a pair of second plates 320 coupled to the left and right sides of the first plate 310 to form the left and right side walls 316 of the refrigerating chamber 112 and the machine chamber 130, respectively. Including.

  In addition, the first and second plates 310 and 320 are formed by bonding at least two panels as in the first embodiment, and a foam material for heat insulation is provided between the panels. Intervenes.

  Further, the first plate 310 is formed with a V-shaped bent groove 104 whose inner angle is almost a right angle. The first plate 310 is bent with reference to the bent groove 104, and the first plate 310 is bent. The second plate 320 formed in a plate shape that is not bent is fixed to the left and right sides of 310 by fastening means such as screws or welding.

It is the longitudinal cross-sectional view which showed 1st Embodiment of the refrigerator which concerns on this invention. FIG. 3 is a perspective view illustrating a process in which the first plate and the second plate of FIG. 1 are manufactured from two panels. It is the perspective view which showed the cutting process of the bending groove | channel of the 1st plate and 2nd plate of FIG. It is the perspective view which showed the bending process of the 1st plate of FIG. It is the perspective view which showed the bending process of the 2nd plate of FIG. It is the perspective view which showed the process of assembling the 2nd plate to the 1st plate of FIG. It is the perspective view which showed the state which the assembly process of the refrigerator concerning this invention was completed. It is the disassembled perspective view which showed the cabinet of 2nd Embodiment of the refrigerator which concerns on this invention. It is the perspective view which showed the cabinet which the assembly of FIG. 8 was completed. It is the schematic sectional side view which showed the conventional refrigerator. It is the schematic block diagram which showed the freezing unit with which the conventional refrigerator is equipped. It is the perspective view which showed the panel manufacturing process of the conventional refrigerator. It is the perspective view which showed the panel coating process of the conventional refrigerator. It is the perspective view which showed the assembly process of the conventional refrigerator. It is the perspective view which showed the foaming material injection | pouring process of the conventional refrigerator. It is the perspective view which showed the state which the assembly process of the conventional refrigerator was completed.

Explanation of symbols

100, 300 Cabinet 110, 310 First plate 112 Refrigeration room 119 Door 120, 320 Second plate 130 Machine room 136 Casing 200 Refrigeration unit 210 Compressor 220 Condenser 230 Evaporator 240 Drive motor 242 Condenser fan 244 Circulation fan 303 Foaming Material

Claims (12)

A cabinet having a refrigerator compartment in which refrigerated items are stored and a machine room isolated from the refrigerator compartment, and a door mounted to open and close the refrigerator compartment; and
A refrigerating unit for supplying cold air to the refrigerating chamber, which is installed in the machine room so as to be separable from the machine chamber, and is configured integrally with each mechanism for performing a refrigeration cycle of compression, condensation, expansion and evaporation The refrigerator characterized by including. The cabinet is
A first plate bent to form a space therein;
A second plate coupled to the first plate to seal one side of the internal space of the first plate and bent so as to partition the internal space of the first plate into a refrigerator room and a machine room; ,
The refrigerator according to claim 1, comprising:   The refrigerator according to claim 2, wherein a bent groove is formed in each of the bent portions of the first and second plates so that the inner angle is almost a right angle.   The first plate forms an upper side wall of the refrigeration chamber, and left and right side walls of the refrigeration chamber and the machine room, and the second plate partitions a rear side wall of the refrigeration room, the refrigeration chamber, and the machine room. The refrigerator according to claim 2, wherein a partition wall is formed.   The partition wall is formed with a first passage for allowing cold air in the machine room to flow into the refrigerating room, and a second passage for circulating air in the refrigerating room to the machine room. The refrigerator according to claim 4. The refrigeration unit is
A casing fixed to the partition wall that partitions the machine chamber into a first chamber communicating with the outside and a second chamber communicating with the first passage and the second passage of the partition wall and sealed from the outside. When,
A compressor installed inside the first chamber for compressing the refrigerant;
A condenser installed in the first chamber and liquefying the refrigerant compressed by the compressor;
An expansion valve installed in the first chamber for changing the high-temperature and high-pressure refrigerant liquefied by the condenser into a low-temperature and low-pressure refrigerant;
An evaporator that is installed inside the second chamber and absorbs ambient heat while vaporizing the low-temperature and low-pressure liquid refrigerant that has passed through the expansion valve;
A circulation fan that is installed inside the second chamber and supplies air cooled through the evaporator to the inside of the refrigerating chamber;
A drive motor fixed to the casing and driving the circulation fan;
The refrigerator of Claim 2 characterized by the above-mentioned.   The refrigerator according to claim 6, wherein a condenser fan for circulating air in the first chamber is installed in the first chamber in order to dissipate the refrigerant in the condenser.   The drive motor has a pair of rotating shafts extending toward the first chamber and the second chamber, and the circulation fan and the condenser fan are respectively connected to the pair of rotating shafts. The refrigerator according to claim 7.   The refrigerator according to claim 2, wherein a cover having a vent hole that communicates the outside with the first chamber is installed on one side of the machine room.   The refrigerator according to claim 1, wherein a base plate that supports the refrigeration unit is installed at the bottom of the machine room. The cabinet is
A first plate bent so as to form a space therein and bent so as to form an upper side wall, a rear side wall of the refrigeration chamber, and a partition wall separating the refrigeration chamber and the machine chamber; ,
A pair of second plates that are respectively fixed to both sides of the first plate, hermetically seal the internal space of the first plate, and form left and right side walls of the refrigerator compartment and the machine room;
The refrigerator of Claim 1 characterized by the above-mentioned.   The first and second plates are structured by bonding at least two panels, and a foam material for heat insulation is interposed between the two or more panels. The refrigerator according to 2 or 11.

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