JP2005037120A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator capable of simplifying manufacturing steps of the refrigerator, and of facilitating the maintenance of the refrigerator by attachably/detachably installing an integrated refrigerating unit to cool the inside of a refrigerating chamber to/from the refrigerating chamber. <P>SOLUTION: The refrigerator comprises a cabinet 10 to form a refrigerating chamber 12 therein, a casing 32 which is attachably/detachably installed inside the cabinet 10, seals one side of the refrigerating chamber 12, and forms a machine room 14 therein, a refrigerating unit 31 which is installed inside the machine room 14 to supply cold air to the refrigerating chamber 12 by integrating each mechanism to perform the refrigerating cycle of compression, condensation, expansion and evaporation. <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. 6 and 7, the conventional refrigerator has a refrigerator compartment 112 in which a refrigerator is stored, a main body 110 having a door 115 attached to the front, and an interior of the refrigerator compartment 112. In order to cool, the compressor 133, the condenser 134, the expansion valve 132, the evaporator 135, etc. are each comprised including the refrigerating unit 120 comprised by connecting with the refrigerant pipe 105.

  The refrigeration unit 120 includes a compressor 133, an expansion valve 132, a condenser 134, and a condenser fan 137 for dissipating heat from the refrigerant inside the condenser 134. The refrigerating chamber 112 is installed in a machine room 114 that is blocked by the partition wall 111, and includes the evaporator 135 and a circulation fan 136 that circulates air cooled while passing through the evaporator 135 into the refrigerating chamber 112. The low temperature part 140 is installed inside the refrigerator compartment 112.

  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 133, and the high-temperature and high-pressure gas refrigerant passed through the compressor 133 in the condenser 134. The high-temperature and high-pressure liquid refrigerant changed to high-temperature and high-pressure liquid refrigerant, and the high-temperature and high-pressure liquid refrigerant passed through the condenser 134 by the expansion valve 132 changed to low-temperature and low-pressure liquid refrigerant. The liquid refrigerant absorbs heat around the evaporator 135 while changing to a gaseous state. Therefore, the air passing through the evaporator 135 is cooled by such a refrigeration cycle, and the cooled air cools the inside of the refrigerating chamber 112 while circulating inside the refrigerating chamber 112 by the circulation fan 136. .

  However, in such a conventional refrigerator, the high temperature part 130 of the refrigeration unit 120 is installed in the machine room 114 separated by the refrigerator compartment 112 and the partition wall 111, and the low temperature part 140 is installed inside the refrigerator compartment 112. Therefore, the high temperature part 130 and the low temperature part 140 are separately manufactured in the assembling process of the refrigerator, and then separately installed in the refrigerator room 112 and the machine room 114. Therefore, the manufacturing process of the refrigerator is complicated. There was a problem.

  In addition, when maintenance of the refrigeration unit 120 is required during manufacture or use of the refrigerator, it is difficult to separate and repair only the refrigeration unit 120 separately from the main body 110 of the refrigerator. There was a problem that working time and cost increased.

  The present invention has been made in view of such a conventional problem, and an integrated refrigeration unit for cooling the inside of the refrigerator compartment is detachably installed from the refrigerator compartment, thereby simplifying the manufacturing process of the refrigerator. An object of the present invention is to provide a refrigerator that can be easily maintained.

  In order to achieve such an object, a refrigerator according to the present invention includes a cabinet in which a refrigerator compartment is formed, and is detachably installed in the cabinet to seal one side of the refrigerator compartment, A refrigeration that supplies cold air to the refrigerating room by integrally forming a casing that forms a machine room and a mechanism that is installed inside the machine room and that performs refrigeration cycles of compression, condensation, expansion, and evaporation. And a unit.

  In the refrigerator according to the present invention, an integrated refrigeration unit for supplying cold air to the inside of the refrigerator compartment is detachably installed from the refrigerator compartment, thereby simplifying the manufacturing process of the refrigerator and facilitating maintenance of the refrigerator. There is an effect.

Hereinafter, the best embodiment of 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 includes a cabinet 10 in which a refrigerator compartment 12 is formed and a door 15 is mounted on the front surface, and is detachable inside the cabinet 10. A refrigeration unit 31 that is installed and supplies cooling air to the refrigerating chamber 12 by integrally configuring each mechanism that performs a refrigeration cycle of compression, condensation, expansion, and evaporation is configured.

  As shown in FIG. 2, the cabinet 10 includes left and right side panels 101 that form left and right side walls of the refrigeration room 12, an upper panel 102 that forms the upper side wall of the refrigeration room 12, and the rear side of the refrigeration room 12. The cabinet 10 is manufactured by assembling the panels 101, 102, 103.

  As shown in FIG. 3, the refrigeration unit 31 is installed in the interior space of the cabinet 10 so as to be detachable from the cabinet 10 to seal the lower side of the refrigerating chamber 12, and inside the machine chamber 14 A casing 32 that forms a refrigerant, a compressor 33 that is installed on the inner bottom surface of the machine chamber 14 and compresses the refrigerant, a condenser 34 that liquefies the refrigerant compressed by the compressor 33, and the condenser 34 An expansion valve (not shown) that changes the liquefied high-temperature and high-pressure refrigerant into a low-temperature and low-pressure refrigerant; an evaporator 35 that absorbs ambient heat while vaporizing the low-temperature and low-pressure liquid refrigerant that has passed through the expansion valve; A circulation fan 36 for forcibly blowing the air cooled by the evaporator 35 to the refrigerator compartment 12, a condenser fan 37 for radiating the refrigerant in the condenser 34, the circulation fan 36 and the front A drive motor 38 for driving the condenser fan 37, a base plate 50 for supporting the respective components of such refrigeration unit 31 to the bottom surface, is configured to include a.

  The casing 32 seals the lower side of the refrigerating chamber 12 to form the bottom surface of the refrigerating chamber 12, and the air circulation port 321a through which the air inside the refrigerating chamber 12 flows into the machine chamber 14 and the machine chamber. 14 is provided with a cover plate 321 formed with a cold air flow inlet 321b through which cold air in the interior of the refrigerator 14 is supplied, and a first chamber fixed to the lower side of the cover plate 321 and communicating the machine chamber 14 with the outside. 141 and a partition wall 322 that is in communication with the air circulation port 321a and the cold air flow inlet 321b of the cover plate 321 and is partitioned into a second chamber 142 that is sealed from the outside. Meanwhile, a front cover 17 having a plurality of vent holes 18 for allowing outside air to flow into the first chamber 141 is installed on the front surface of the machine chamber 14.

  The compressor 33, the condenser 34, the expansion valve and the condenser fan 37 are installed in the first chamber 141 of the machine chamber 14, and the evaporator 35 is installed in the second chamber 142. The circulation fan 36 is installed. Here, the condenser fan 37 is arranged on the front side in the air flow direction with respect to the condenser 34, and the circulation fan 36 is on the front side in the cold air flow direction on the basis of the evaporator 35. Arranged.

  The drive motor 38 is fixed to the partition wall 322, and the rotating shaft 381 is extended from both sides toward the first chamber 141 and the second chamber 142, respectively, so that the circulation fan 36 and the condenser are provided. The fan 37 is connected to each other. On the other hand, in the present invention, the circulation fan 36 and the condenser fan 37 are not limited to a structure in which the circulation fan 36 and the condenser fan 37 are integrally driven by a single drive motor 38. It can also comprise so that it may drive with a drive motor.

  In such a refrigeration unit 31, a compressor 33, a condenser 34, an expansion valve and an evaporator 35 are integrally provided in a casing 32 detachable from the cabinet 10. Can be easily attached to and detached from the interior of the device.

Hereinafter, the operation of the refrigerator according to the first embodiment of the present invention configured as described above will be described.
First, the refrigeration unit 31 is housed and installed in the lower part inside the cabinet 10, and the casing 32 covers the lower side of the internal space of the cabinet 10 to form the refrigerator compartment 12 together with the cabinet 10. To do. At this time, the cover plate 321 serves as the bottom of the refrigerator compartment 12. The refrigerating chamber 12 and the second chamber 142 of the machine chamber 14 communicate with each other via an air circulation port 321 a and a cold air flow inlet 321 b formed in the cover plate 321.

  When a voltage is applied and the operation is started, the refrigerant compressed by the compressor 33 dissipates heat by the condenser 34 and is condensed, and the condensed refrigerant passes through an expansion valve (not shown) and is evaporated. 35. The air inside the refrigerating chamber 12 flows in the direction of the evaporator 35 through the air circulation port 321 a by the rotation of the circulation fan 36 and is cooled while passing through the evaporator 35. The air thus cooled flows into the refrigerating chamber 12 through the cold air flow inlet 321b, whereby the inside of the refrigerating chamber 12 is cooled.

  On the other hand, when the maintenance of the refrigeration unit 31 is performed, the refrigeration unit 31 is easily separated from the cabinet 10 by removing the front cover 17 and pulling the casing 32 forward.

  The first embodiment of the refrigerator according to the present invention has an advantage that the refrigerator assembly process is simple because the cabinet 10 and the refrigeration unit 31 can be separately manufactured and assembled. . In addition, since the refrigeration unit 31 can be easily separated from the cabinet 10, the refrigeration unit 31 can be easily maintained, and the working time and cost can be reduced.

Further, since the refrigeration unit 31 serves as the bottom of the refrigerator compartment 12 inside the cabinet 10, the cabinet 10 can be formed in a simple shape without a bottom.
Hereinafter, 2nd Embodiment of the refrigerator which concerns on this invention is described based on FIG.4 and FIG.5. Parts similar to those of the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 4, the second embodiment of the refrigerator according to the present invention includes a cabinet 10 in which a refrigerator compartment 12 is formed and a door 15 is mounted on the front surface. The cabinet 10 is detachable from the cabinet 10. A refrigeration unit 31 that is installed and supplies cooling air to the refrigerating chamber 12 by integrally configuring each mechanism that performs a refrigeration cycle of compression, condensation, expansion, and evaporation is configured.

  Further, as shown in FIG. 5, the refrigeration unit 31 is detachably installed in the internal space of the cabinet 10 from the cabinet 10, and forms a refrigerator compartment 12 by blocking the lower side of the cabinet 10. A casing 32 that forms the machine chamber 14 therein, a compressor 33 that is installed inside the machine chamber 14 and compresses the refrigerant, a condenser 34 that liquefies the refrigerant compressed by the compressor 33, and An expansion valve (not shown) that changes the high-temperature and high-pressure refrigerant liquefied by the condenser 34 into a low-temperature and low-pressure refrigerant, and an evaporator that absorbs ambient heat while vaporizing the low-temperature and low-pressure liquid refrigerant that has passed through the expansion valve 35, a circulation fan 36 for forcibly blowing the air cooled by the evaporator 35 to the refrigerator compartment 12, a condenser fan 37 for radiating the refrigerant in the condenser 34, and the circulation A drive motor 38 for driving the fan 36 and the condenser fan 37 simultaneously, a base plate 50 for supporting the respective components of such refrigeration unit 31 to the bottom surface, is configured to include a.

  The casing 32 forms a bottom surface of the refrigerating chamber 12 by sealing the lower side of the refrigerating chamber 12, and an air circulation port 321 a through which air inside the refrigerating chamber 12 flows into the machine chamber 14 and the machine chamber. 14, a cover plate 321 formed with a cold air flow inlet 321b through which cold air flows into the refrigerator compartment 12, and a first chamber 141 that is fixed to the lower side of the cover plate 321 and communicates the machine chamber 14 with the outside. And partition walls 322 that respectively communicate with the air circulation port 321a and the cold air flow inlet 321b of the cover plate 321 and are partitioned into second chambers 142 that are sealed from the outside. In addition, a front cover 17 in which a plurality of vent holes 18 for allowing outside air to flow into the first chamber 141 is formed on the front surface of the machine chamber 14.

  The compressor 33, the condenser 34, the expansion valve and the condenser fan 37 are installed in the first chamber 141 of the machine chamber 14, and the evaporator 35 is installed in the second chamber 142. The circulation fan 36 is installed. Here, the condenser fan 37 is disposed on the rear side in the air flow direction with respect to the condenser 34, and the circulation fan 36 is on the front side in the cold air flow direction with respect to the evaporator 35. Arranged.

  The drive motor 38 is fixed to the partition wall 322, and the rotating shaft 381 is extended from both sides toward the first chamber 141 and the second chamber 142, respectively, so that the circulation fan 36 and the condenser are provided. Each is connected to a fan 37.

  In addition, the partition wall 322 includes a front wall 322a and a rear wall 322b that are formed to extend downward from the bottom surface of the cover plate 321 and a lower portion of the front wall 322a and the rear wall 322b. A pair of bottom surface portions 322c extending from the respective end portions of the front wall 322a and the rear wall 322b and the bottom surface portions 322c are connected to each other so as to be blocked, and are inclined at a predetermined angle with respect to the cabinet 10. And an inclined portion 322d on which the drive motor 38 is installed.

  The refrigerator according to the second embodiment of the present invention configured as described above is inclined about the vertical axis of the cabinet 10 by forming an inclined portion 322d in a part of the partition wall 322 that partitions the machine room 14. Thus, there is an advantage that the drive motor 38 arranged in a simple manner can be easily installed.

  The operation and effect of the refrigerator of the second embodiment according to the present invention are substantially the same as those of the first embodiment described above.

It is the longitudinal cross-sectional view which showed 1st Embodiment of the refrigerator which concerns on this invention. It is the perspective view which showed the cabinet with which the refrigerator of FIG. 1 is equipped. It is the longitudinal cross-sectional view which showed the freezing unit with which the refrigerator of FIG. 1 is equipped. It is the longitudinal cross-sectional view which showed 2nd Embodiment of the refrigerator which concerns on this invention. It is the longitudinal cross-sectional view which showed the freezing unit with which the refrigerator of FIG. 4 is equipped. It is the schematic longitudinal cross-sectional view which showed the conventional refrigerator. It is the schematic explanatory drawing which showed the refrigerating cycle with which the refrigerator of FIG. 6 is equipped.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Cabinet 12 Refrigerating room 15 Door 17 Front cover 14 Machine room 31 Refrigeration unit 32 Casing 33 Compressor 34 Condenser 35 Evaporator 36 Circulation fan 37 Condenser fan 38 Drive motor 50 Base plate

Claims (10)

A cabinet in which a refrigerator compartment is formed,
A casing which is detachably installed in the cabinet and seals one side of the refrigerator compartment, and forms a machine room in the casing;
A refrigeration unit that is installed inside the machine room and supplies cold air to the refrigeration room by integrally configuring each mechanism that performs a refrigeration cycle of compression, condensation, expansion, and evaporation;
A refrigerator characterized by comprising. The casing is
Air that causes one side of the refrigerating chamber to be sealed to form one side of the refrigerating chamber, and that feeds cold air in the machine room to the refrigerating room and air that flows into the machine room. A cover plate in which each circulation port is formed;
A partition wall fixed to the cover plate and partitioned into a first chamber that communicates with the machine chamber with the outside and a second chamber that communicates with the cold air flow inlet and the air circulation port of the cover plate and is sealed from the outside;
The refrigerator according to claim 1, comprising:   The refrigerator according to claim 2, wherein the cover plate is formed to form a bottom surface of the refrigerator compartment below the cabinet. The refrigeration unit is
A compressor installed in the first chamber for compressing the refrigerant;
A condenser installed in the first chamber for liquefying the refrigerant compressed by the compressor;
An expansion valve that changes the high-temperature and high-pressure refrigerant liquefied by the condenser into a low-temperature and low-pressure refrigerant;
An evaporator installed in the second chamber to absorb 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 adjacent to the evaporator and supplies cold air around the evaporator to the inside of the refrigerator compartment;
A drive motor for driving the circulation fan;
The refrigerator according to claim 2, comprising:   5. The refrigerator according to claim 4, wherein a condenser fan that circulates air in the first chamber is installed in the first chamber so as to dissipate the refrigerant in the condenser.   6. The refrigerator according to claim 5, wherein the drive motor has a pair of rotating shafts extending from both sides, and the circulation fan and the condenser fan are respectively connected to the pair of rotating shafts.   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 4, wherein the partition wall is formed with an inclined portion inclined with respect to the cabinet, and the drive motor is installed in the inclined portion.   5. The refrigerator according to claim 4, wherein the condenser is disposed on a rear side in a flow direction of air by the condenser fan with reference to the condenser fan.   The refrigerator according to claim 1, further comprising a base plate that supports the refrigeration unit at a bottom of the machine room.

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