JP2007071429A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator having a compressor at its upper portion, and improved in usability while securing strength of a heat insulating housing. <P>SOLUTION: The compressor 83 is mounted at an upper rear portion of a refrigerating compartment 30, the refrigerating compartment 30 is composed of a hinged door for closing a front opening, a first freezing compartment 31, a vegetable compartment 32 and a second freezing compartment 33 composed of drawer doors are formed at its lower portion, and foam insulation 23 is filled to integrate a first partitioning wall 40 partitioning the refrigerating compartment 30 and lower storing compartments and the heat insulating housing 24, thus the layout of high efficiency for increasing a food storing height good for usability, and receiving the compressor 83 in an ineffective height of low usability can be provided, and a constitution of the partitioning wall capable of surely insulating the storing compartments of various temperature zones from heat while securing the strength of the heat insulating housing 24, can be realized. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a box structure of a refrigerator.

  In recent years, the size of refrigerators has increased due to changes in food styles, and each manufacturer has been accelerating the movement of large capacity in a space-saving manner with the same external dimensions and expanding the internal volume. In fact, 400L is becoming mainstream with 60cm width in each company. Naturally, when the internal volume is increased with the same dimensions, it is natural that the volume cannot be realized without improving the volumetric efficiency by thinning the box constituting the refrigerator main body, particularly by thinning the heat insulating material.

  In addition, with the increase in capacity, the number of doors has increased, and rooms that are frequently used have become independent, and food according to the purpose can be divided and stored separately in each storage room. There are also moves to improve usability. For example, the aim is to reduce the physical burden when putting in and out of the vegetable room that stores relatively heavy food in the upper part of the ice making room that is often used in the summer, and slightly downward.

  Conventionally, in a refrigerator that is partitioned into a plurality of storage rooms and whose front face is closed by a plurality of doors, a compressor is provided behind the lowermost storage room and the uppermost stage rotates as referred to in Patent Document 1. A refrigerated room covered with a traditional door has been proposed.

  7 and 8 show a conventional refrigerator described in Patent Document 1. FIG. FIG. 7 is a front view of a conventional refrigerator, and FIG. 8 is a longitudinal sectional view of the conventional refrigerator.

Reference numeral 1 denotes a refrigerator main body, and a freezer compartment which is a first freezer compartment provided with a refrigerator compartment 2 disposed with an open / close door at the top of the refrigerator main body 1 and a drawer door disposed below the refrigerator compartment 2. 3, a freezer room 4 that is a second freezer room provided with a drawer door disposed at the bottom of the refrigerator body 1, and a vegetable room 5 provided with a drawer door between the freezer room 3 and the freezer room 4, Consists of. The compressor 10 of the refrigeration system is installed behind the lowermost freezer compartment 4, the cooler 11 is mainly disposed in the rear region of the vegetable compartment 5, and cool air is forced to each storage room above the cooler 11. A cooling fan is installed to circulate and supply. In the freezer compartment 3, the freezer compartment 4, and the vegetable compartment 5, storage cases 7, 8, and 9 are installed, and foods suitable for the respective temperature zones can be stored.
Japanese Patent No. 3327278

  However, in the conventional configuration described above, an ice-making room, which is frequently used in the summer, a vegetable room for storing heavy drinks such as plastic bottles and bottles, and vegetables such as Chinese cabbage and radish, is easy to use. Although the layout to arrange | position can be implement | achieved, since the compressor is arrange | positioned under the refrigerator main body, it has the subject that the depth of the lowermost store room, ie, the freezer compartment, becomes narrow. Looking at lifestyles in recent years, the demand for frozen foods tends to increase, and it can be said that this layout cannot solve the shortage of storage.

  In addition, because the storage room above the refrigerator is configured with a revolving door, a large load is applied to the hinges provided at the top and bottom, so when storing heavy items such as plastic bottles and bottles on the door shelf, the weight There was a problem that the refrigerator door tends to fall due to the weight of the object.

  The present invention solves the above-mentioned conventional problems, and installs a compressor in the uppermost part of the refrigerator compartment that cannot be reached even if a general woman stretches back, dramatically increasing the capacity of the lowermost freezer room. An object of the present invention is to provide a layout configuration that can increase the storage capacity at a height position that is easy to use for general women from the lower refrigeration room to the upper part of the vegetable room.

  In addition, since the rigidity of the door support can be improved, the required heat insulation box rigidity can be maintained without a reinforcing member, and the heat insulation box can be thinned to increase the overall internal capacity. The purpose of the present invention is to provide a refrigerator that can secure the strength of the heat insulation box even when it is performed, prevents the distortion of the refrigerator body and the door from falling, and can be used safely.

  An outer box that forms the refrigerator main body, an inner box, a heat insulating box body that is filled with a foam heat insulating material between the outer box and the inner box, and has a front surface opened, and a storage chamber that is partitioned into a plurality of sections in the heat insulating box body And a refrigerator comprising a plurality of partition walls partitioning the storage chamber, a compressor of a refrigeration cycle, and a cooler, wherein the compressor is placed at the upper rear of the uppermost storage chamber, A front door of the storage chamber is constituted by a revolving door, and a drawer door is provided for closing the front opening of the storage chamber located below the uppermost storage chamber. Filled with heat insulating foam material so that the partition wall partitioning the lower storage chamber and the heat insulation box are integrated, and the uppermost storage chamber and the lower storage chamber are set in different temperature zones. It is.

  This eliminates the compressor from the rear of the lowermost storage room and allows the compressor to be stored behind the uppermost refrigeration room, increasing the food storage space, which is generally convenient and high, In addition to accommodating functional parts such as compressors in an invalid space that is not used or cannot be used, it is possible to realize a partition wall configuration that ensures the heat insulation box strength and can reliably insulate storage rooms in different temperature zones. .

  The refrigerator of the present invention has a compressor installed at the rear of the uppermost refrigeration room, which cannot be reached even if a general woman stretches, greatly increasing the capacity of the lowermost freezing room, and vegetables from the lower refrigeration room A large storage capacity can be secured at a height that is most convenient for general women up to the room. In addition, the user can provide an easy-to-use layout structure because the entire container in the warehouse can be looked down at the lower side of the refrigerator compartment by using a drawer-type door.

  In addition, since the rigidity of the hinge part of the refrigerator compartment door can be improved, the required heat insulation box rigidity can be maintained without a reinforcing member, and the heat insulation box body can be thinned to increase the overall internal capacity. Even when walling is performed, the strength of the heat insulation box can be secured, preventing distortion of the refrigerator body and falling down of the door, etc., so you can use it with confidence.

  The invention according to claim 1 is an outer box that forms a refrigerator main body, an inner box, a heat insulating box body that is filled with a foam insulating material between the outer box and the inner box, and has an open front surface, and the heat insulating box body. A refrigerator having a plurality of storage chambers, a plurality of partition walls partitioning the storage chambers, a compressor of a refrigeration cycle, and a cooler, wherein the compressor is an upper part of the uppermost storage chamber The rearmost storage room is a refrigerating room configured with a revolving door for closing the front opening, and a plurality of revolving doors for closing the front opening are provided below the refrigerating room. The partition wall which has a storage room and partitions the refrigerator compartment and the storage room below it is filled with a foam insulation so that the heat insulation box may be united, and the refrigerator compartment and the storage room below it are The room is set in different temperature zones.

  As a result, a compressor is installed in the uppermost part of the refrigerating room that cannot be reached even if a general woman stretches, and the capacity of the lowermost freezing room is dramatically increased. It is possible to secure a large storage capacity at an easy-to-use height position that can be easily reached, and to provide a layout configuration in which the invalid space is reduced to the limit.

  Moreover, since the refrigerator compartment can be used at the height of the line of sight, it is very easy to put in and out, and the ease of use by the revolving door can be improved.

  In addition, by placing a heavy object called a compressor on the top and using the support part of the revolving door as a partition wall, the partition wall that is subject to a very large load is integrally formed with the heat insulation box with foam insulation. The rigidity of a partition wall can be improved and by extension, the rigidity of a refrigerator main body can be improved. In short, it is possible to maintain the required heat insulation box rigidity without the need for reinforcing members, and ensure the strength of the heat insulation box even when the heat insulation box is thinned to increase the overall internal capacity. The refrigerator can be used with peace of mind by preventing distortion of the refrigerator body and falling doors.

  According to a second aspect of the present invention, in the first aspect of the present invention, the upper rear part of the uppermost storage chamber on which the compressor is placed is cut out of a part of the outer box, so that the top of the heat insulating box body is cut. It is comprised by the recessed part which became one step lower than the surface part.

  As a result, high-pressure parts such as a compressor are stored in an inaccessible space at the top of the refrigerating room, so that the compressor does not protrude from the top of the refrigerator body, saving space and a large storage space. Can be provided and is good in design.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the uppermost storage chamber is a refrigeration chamber and the lower storage chamber is a first freezing chamber.

  Accordingly, the most frequently used refrigeration room among the storage rooms of the refrigerator is arranged at the height of the line of sight, and the stored items in the warehouse can be looked over and the stored items can be easily taken in and out.

  In addition, by placing the freezer directly below the refrigerator compartment, it is possible to easily put in and out the stored items at an appropriate height without bending down. The increase in frozen foods and homes due to recent changes in food styles. It can meet customer needs such as freezing.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the heat insulating box is partitioned into a plurality of storage chambers by a partition wall, and the uppermost storage chamber is formed. A refrigerating room composed of a revolving door for closing the front opening, and a storage room located below the refrigerating room in order from the top composed of a drawer door for closing the front opening, a first freezer room, a vegetable room The refrigerator characterized by arrange | positioning the 2nd freezer compartment.

  Thus, the most frequently used refrigeration room among the storage rooms of the refrigerator can be arranged at the height of the line of sight, and the stored items in the cabinet can be easily looked over and the stored items can be easily taken in and out.

  In addition, by placing the freezer directly below the refrigerator compartment, it is possible to easily put in and out the stored items at an appropriate height without bending down. The increase in frozen foods and homes due to recent changes in food styles. It can meet customer needs such as freezing.

  In addition, by placing a vegetable room for storing heavy items such as Chinese cabbage and radishes slightly below, it can be taken out in an easy posture without lifting the stored items.

  The invention according to claim 5 is the invention according to claim 4, wherein the height of the first freezer compartment is lower than the height of the second freezer compartment.

  As a result, the first freezer compartment located at a height that is easy to use without bending over is used for short-term storage such as quick freezing and freezing, so the surface area of food to be frozen is increased to cool faster. In other words, the thinner the product, the better the freezing can be achieved by suppressing the deterioration of the food. On the other hand, by increasing the height of the second freezer compartment, there is a merit that a large amount of stock of frozen food can be obtained.

  The invention according to claim 6 is the invention according to claim 4 or 5, wherein the vegetable room and the second freezing room have substantially the same height.

  As a result, there is a possibility that the doors of both chambers can be shared to reduce costs. In addition, it is conceivable to share the drawer-type storage container in both chambers, and the storage container is generally a large resin molded part, so there is a large cost merit.

  The invention according to claim 7 is the invention according to any one of claims 4 to 6, further comprising a plurality of partition walls that are partitioned into a plurality of storage chambers constituting the heat insulating box, and the refrigeration. And a first partition wall that partitions the first freezer compartment and a third partition wall that partitions the first freezer compartment and the vegetable compartment, both of which are integrated with the heat insulating box. It is filled with foam insulation.

  As a result, the upper and lower storage chambers having different temperature zones can be reliably insulated. In addition, since the heat insulation box and the partition wall can be tightly sealed without any leakage of cold air or moisture and moisture, condensation and frost formation can be prevented, and the seal member can be simplified and inexpensive, and the work efficiency can be improved. A good partition wall can be constructed. Moreover, since the two partition walls integrally constructed with the foam heat insulating material are installed in the left-right direction at the front opening of the heat insulating box, the strength of the heat insulating box itself can be improved.

  The invention according to claim 8 is the invention according to any one of claims 3 to 7, wherein the first freezer compartment is set to be switchable from a refrigeration temperature zone to a refrigeration temperature zone. .

  Thereby, by using a storage room having a function that can be switched from a refrigeration temperature zone to a freezing temperature zone, the value can be improved by adding a function that can cope with changes in the lifestyle of the user.

  The invention according to claim 9 is the invention according to any one of claims 3 to 8, wherein the first freezer compartment is partitioned left and right by an insulated partition wall, and the ice making chamber is made independent. It is a feature.

  As a result, the ice making room, which is frequently used in summer, can be used directly below the refrigeration room without bending, so that ice can be taken in and out easily. In addition, since the ice making room is an independent storage room, it is possible to suppress unnecessary opening of the door and to save energy.

  Hereinafter, embodiments of a refrigerator according to the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
Embodiment 1 of the present invention will be described below with reference to FIGS. FIG. 1 is a front view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a front view of a heat insulating box with the door of the refrigerator opened according to Embodiment 1 of the present invention, and FIG. B line sectional view, FIG. 4 is a perspective view of the top surface portion of the heat insulation box of the refrigerator in the first embodiment of the present invention, FIG. 5 is an exploded perspective view of the first partition of the refrigerator in the first embodiment of the present invention. It is.

  Reference numeral 20 denotes a refrigerator main body, and the refrigerator main body 20 includes a heat insulating box body 24 in which a space including an outer box 21 and an inner box 22 is filled with a foam heat insulating material 23. The heat insulation box 24 is partitioned by a plurality of partition walls partitioned by substantially the entire width in the left-right direction and a partition wall partitioned in the vertical direction to form a plurality of storage chambers. The storage room has a structure in which a refrigeration room 30 is disposed at the top, a first freezing room 31 is disposed below the refrigeration room 30, a vegetable room 32 is disposed below, and a second freezing room 33 is disposed at the bottom. ing.

  A refrigerator compartment door 30a, a first freezer compartment door 31a, a vegetable compartment door 32a, and a second freezer compartment door 33a are provided at the front opening of each storage room, respectively, so as to hold the cold air in the respective cabinets. It is blocked. The refrigerating room door 30a is a rotary door, and is a front surface of the first partition wall 40 for heat-insulating the outer box 21, the refrigerating room 30, and the first freezing room 31 located on the top surface of the heat insulating box 24. The upper and lower hinges (not shown) provided in the upper part are held and applied with the power of a human hand, so that the hinged doors 30a can be rotationally driven to open the refrigerator compartment door 30a. The 1st freezer compartment door 31a, the vegetable compartment door 32a, and the 2nd freezer compartment door 33a are provided with a drawer-type door, and can be opened by pulling it out.

  The refrigerated room 30 is usually set at 1 to 5 ° C. with a lower limit of the temperature at which it does not freeze for refrigerated storage, and the vegetable room 32 is set to 2 ° C. to 7 ° C., which is the same or slightly higher temperature setting as the refrigerated room 30. In many cases, the freshness of leafy vegetables can be maintained for a long time as the temperature and humidity are lowered. The first freezing chamber 31 and the second freezing chamber 33 are set to about −18 ° C., which is sufficient for freezing and storing frozen foods. For example, about −30 ° C. for improving the frozen storage state. It may be set at a low temperature.

  As shown in FIG. 5, the first partition wall 40 that divides the refrigerator compartment 30 and the first freezer compartment 31 extends over substantially the entire width of the heat insulating box 24, and generally two of the upper lid 41 and the lower lid 42. Holes 43 for allowing foamed heat insulating material such as urethane to flow in are provided on the left and right and rear side surfaces of the parts fitted together. The foam insulation material 23 is attached to the inner box before foaming so that the foam insulation material 23 can flow into the first partition wall 40 at the same time when the insulation material 24 is filled with the foam insulation material. It has a solid integrated structure. Instead of allowing the foam insulation 23 to flow into the entire first partition wall 40, a configuration in which a part of the refrigerator compartment 30 and the first freezer compartment 31 can be moved back and forth may be used. In this case, for example, it is used as a cold air duct 44 for circulating cold air for cooling the refrigerator compartment 30, and is part of the cold air duct 44 between the upper lid 41 and the lower lid 42 constituting the first partition wall 40. There is a method of inserting foamed polystyrene or the like having a certain hole processed. Furthermore, in order to further improve the heat insulating performance, a highly heat insulating vacuum heat insulating material may be inserted to further reduce the thickness of the partition structure.

  The cooler room 50 provided across the back surfaces of both the vegetable room 32 and the second freezing room 33 is provided with a heat-insulated second partition wall 51 for partitioning from the inside of the cabinet. The freezer compartment 31 and the vegetable compartment 32 are partitioned by a thermally insulated third partition wall 52, and the second freezer compartment 33 and the vegetable compartment 32 are partitioned by a thermally insulated fourth partition wall 53. Since the second partition wall 51, the third partition wall 52, and the fourth partition wall 53 are parts that are usually assembled after foaming of the heat insulating box body 24, polystyrene foam is usually used as a heat insulating material. Rigid urethane foam may be used to improve performance and rigidity.

  The refrigerating room 30 is provided with a refrigerating room duct 61 for passing the cold air cooled by the cooler 60 on the back surface, and the cold air is distributed over the entire interior from a plurality of discharge holes (not shown). The cold air passage is simply insulated with foamed polystyrene or the like, and has a role of insulating the inside of the cabinet. On the other hand, a plurality of shelves 62 for organizing and storing stored items without overlapping are provided in the cabinet, and a part of the shelves 62 can be moved up and down. At the bottom, a specific low temperature chamber 63 is provided, and a drawer container 64 is provided so that fresh meat and fish can be stored deliciously. In addition, the refrigerator compartment door 30a is provided with a plurality of pockets 65 on the inner side thereof so that beverages such as plastic bottles and milk cartons, and medium bottles such as seasonings can be efficiently stored and stored.

  The vegetable compartment 32 is provided with a vegetable compartment storage container 70 for mainly organizing and storing vegetables such as leaf vegetables, root vegetables and fruits, and the upper surface is opened. The vegetable compartment storage container 70 is supported by rails installed in the cabinet so that the vegetable compartment storage container 70 moves together by moving the front vegetable compartment door 32a in the front-rear direction. In particular, a simple partition is provided on the front side of the container 70 for the vegetable compartment to form a compartment, so that the plastic bottle and vegetables can be placed vertically, and the vegetable compartment door 32a is only slightly opened. It is considered that it can be taken out.

  The first freezer 31 is provided with a container for organizing and storing food, and the upper surface is opened. The container is supported by rails in the cabinet so that the container moves together by moving the front first freezer compartment door in the front-rear direction. A first freezer compartment duct 72 for passing cold air cooled by the cooler 60 is provided on the back surface, and cold air is distributed from the plurality of discharge holes (not shown) to the entire interior. The air passage is simply insulated and has the role of insulating the inside of the warehouse.

  Some of the first freezer compartment 31 has a space for generating and storing ice, and some of them have an automatic ice making device 66 having a function of automatically making ice. Furthermore, a fifth partition wall 54, which is a thermally insulated partition for dividing the first freezer compartment into left and right, is formed so that the first partition wall 40 and the third partition wall 52 are in close contact with the upper and lower end surfaces. However, it can be made independent as an ice making chamber 34 for generating and storing ice. In that case, in addition to the first freezing chamber 31, the compartment next to the ice making chamber 34 can be configured as a chamber having a function of switching the temperature from the refrigeration temperature zone to the freezing temperature zone. In that case, the first freezer compartment duct 72 incorporates a sensor mechanism (not shown) for managing the internal temperature of the first freezer compartment 31 and a damper 73 for adjusting the amount of cold air for temperature switching. Store.

  The second freezer compartment 33 is provided with a freezer compartment storage container 71 for organizing and storing food, and the upper surface is opened. The freezer compartment container 71 is supported by rails in the cabinet so that the second freezer compartment door 33a in the front is moved in the front-rear direction so that the freezer compartment container 71 is also moved together.

  In the cooler chamber 50, a fin-and-tube cooler 60, which is representative of the cooler chamber 50, extends in the vertical direction across the second freezing chamber 33 and the vegetable chamber 32, including the rear region of the second partition wall 51. It arrange | positions vertically and is arrange | positioned so that the arrangement ratio of the area | region of the 2nd freezer compartment 33 may become larger than the arrangement ratio of the area | region of the vegetable compartment 32. FIG. In the upper space of the cooler 60, a cooling fan 74 that blows cold air cooled by the cooler is disposed in the refrigerator compartment 30, the second freezer compartment 33, and the vegetable compartment 32 by a forced convection method. A freezer compartment air passage (not shown) for sending cold air for cooling the freezer compartment 33 and a freezer compartment air passage (not shown) are provided. In the lower space of the cooler 60, a radiant heater 78 made of glass tube is provided as a defrosting device for melting frost and ice adhering to the cooler 60 and the cooling fan 74 during cooling.

  On the bottom surface of the heat insulation box 24, an evaporating dish 86 for storing moisture when the frost attached to the cooler 60 is melted and a condenser 87 for a refrigeration cycle are arranged. A condensing fan (not shown) for forced circulation for improving the efficiency of the condensing capacity and the evaporating capacity can also be installed.

  The top surface portion of the heat insulation box 24 is provided with a stepped recess toward the back of the refrigerator, and is composed of a first top surface portion 80 and a second top surface portion 81. A notch 84 having a space for mounting the compressor 83 is formed in the first top surface 80 of the outer box 21 formed of a metal steel plate or the like, and the back surface, the left and right side surfaces, and the compressor are formed in the notch 84. A recess 82 is formed in such a manner that a resin component 85 formed with a second top surface portion 81 on which 83 is placed is fitted. The compressor 83 is installed by placing an elastic body 88 such as rubber or resin in the middle of the fixing portion of the compressor 83 provided on the second top surface portion 81 in order to prevent vibration propagation to the heat insulating box 24. It is desirable to do. The inner box 22 that forms the inside of the refrigerator is curved along the shape of the resin component 85 on the inner side of the refrigerator, and the inner box 22 protrudes to the inner side in the vicinity of the uppermost stage of the refrigerator compartment 30. Further, a foam heat insulating material 23 is injected between the outer box 21 and the inner box 22 to insulate the refrigerator compartment 30 and the recess 82. In order to improve the strength of the recess 82 in which the compressor 83 is placed by inserting a notch 84 into the first top surface 80 of the outer box 21, the end surface of the outer box 21 that generally forms the notch 84 is used. It is desirable to reinforce by bending inside or providing a reinforcing member (not shown) around the periphery. In addition to the compressor 83, components on the high-pressure side of the refrigeration cycle such as a dryer (not shown) for removing moisture can be accommodated. Therefore, the compressor 83 is not arranged in the lowermost storage chamber region of the heat insulating box 24 that has been generally used conventionally.

  As described above, the compressor 83 of the refrigeration cycle does not exist in the rear region of the second freezer compartment 33, and the refrigerator compartment duct 61 for sending cold air to the refrigerator compartment 30 behind the refrigerator compartment 30, the first freezer compartment. The 1st freezer compartment duct 72 for sending cold air to the 1st freezer compartment 31 and the damper 73 as needed are accommodated behind 31. In addition, the cooler chamber 50 is arranged behind the vegetable chamber 32 and the second freezer chamber 33, and the uppermost stage of the refrigerator compartment 30 that houses the compressor 83 in the recess 82 protrudes most. The lower portion is arranged so as to penetrate the rear region of the second partition wall 51 so as not to increase the thickness in the depth direction as much as possible, and is arranged in a straight line in the vertical direction with substantially the same thickness.

  Thereby, the depth of the 2nd freezer compartment 33 from the indoor side back surface of the 2nd freezer compartment door 33a comprised by drawer to the 2nd partition wall 51 used as the front wall of cooler room 50, vegetable compartment door 32a The depth in the vegetable room 32 from the indoor back surface to the second partition wall 33 which becomes the front wall of the cooler chamber 50, the front surface of the first freezer compartment duct 72 from the indoor back surface of the first freezer door 31a. The depth in the 1st freezer compartment 31 to a wall is formed substantially equally. Furthermore, the depth from the indoor side rear surface of the refrigerator compartment door 30a to the front wall of the refrigerator compartment duct 61 is formed to be substantially equal.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the refrigeration cycle operation will be described. The refrigeration cycle is operated by a signal from a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 83 dissipates heat in the condenser 87 to be condensed and liquefied, and is reduced in pressure while exchanging heat with a capillary tube (not shown) to become a low-temperature and low-pressure liquid refrigerant. It reaches the cooler 60.

  By the operation of the cooling fan 74, heat is exchanged with the air in each storage chamber, the refrigerant in the cooler 60 evaporates, and supply of low-temperature cold air is controlled by a damper device or the like. Cooling is performed so that the temperature can be maintained. The refrigerant exiting the cooler 60 is sucked into the compressor 83 through the suction pipe.

  Since the compressor 83 is accommodated in a recess 82 formed by cutting out the top surface of the outer box 21, the rear portion of the heat insulating box 24 can be saved in space because there is no protrusion of the compressor from the outside. On the other hand, the heat insulating box 24 may be distorted and deformed. Moreover, since the front part of the heat insulation box 24 is equipped with the rotary door which accommodates heavy goods, such as a PET bottle and bottles, inside the refrigerator compartment door 30a which comprises the front surface of the refrigerator compartment 30, a hinge installation location There is a possibility that a strain stress is applied such that the heat insulation box 24 is twisted from the top surface or the first partition wall 40, and the refrigerator door 30a is lowered. In addition, the vegetable compartment storage container 70 and the freezer compartment storage container 71 whose upper surfaces are opened when the refrigerator compartment 30 is pulled out are drawn together at the bottom of the refrigerator compartment 30, so that the container under the line of sight is easily viewed from above. When the food is stored in the container, that is, when it is pulled out, a large load is applied to the place where the rail is attached or the front bottom portion of the heat insulation box 24, and the heat insulation box 24 is distorted. There is a possibility of deformation, and distortion due to aging tends to increase.

  For this reason, in the configuration in which the compressor 83 is disposed behind the heat insulation box 24 and the refrigerator compartment door 30a is disposed forward and a large load is applied to the front and rear, the foam insulation 23 is provided on the partition wall that partitions the heat insulation box 24. Filling and connecting the heat insulation box 24 and the first partition wall 40 with the foam heat insulating material 23 is strong with respect to vertical and horizontal distortion stresses, and the number of components is small. realizable. Further, in addition to the first partition wall 40, the third partition wall 52 is integrated with the heat insulating box body 24 by the foam heat insulating material 23 in the same configuration as described above, and a plurality of partition walls are integrated to form a heat insulating box. The strength of the body 24 can be increased, and there is also an advantage that it is possible to surely insulate the storage chambers having different temperature zones.

  For the first time by realizing the above configuration, the compressor 83 is disposed on the top surface portion of the heat insulating box 24 and is not installed in the rear region of the second freezing chamber 33, and the cooler chamber 50 is disposed in the second freezing chamber 33. The cooler 60 and the cooling fan 74 are provided within the height range of the second freezer compartment 33 and the vegetable compartment 32, and the cooler 60 is extended in the height direction so that the depth dimension is increased. By shortening, the thickness of the cooler chamber 50 can be reduced to reduce the ineffective space that does not contribute to the internal volume, and the internal volume of one storage chamber can be reduced by making the depth dimensions of each container substantially the same. Therefore, the storage capacity can be increased and the usability can be dramatically improved.

  In particular, in recent years, the upper tier above the waist where the most frequently used refrigeration room 30 can be opened and removed in front of the user from the viewpoint of the user's usage frequency, ease of freshness management, ergonomic usability, etc. In the middle, the vegetable room 32 for taking in and out of heavy objects and the health-oriented vegetable compartment is easy to use, and there is a stock room that does not come in and out for a long period of time, and the freezer room 33 that requires consideration for dropping during handling is at the bottom. The layout of the refrigerator is the mainstream, but in this layout, it is a drawback that the storage capacity of the lowermost freezer compartment 33 cannot be secured by the arrangement of the machine room including the compressor 83. According to this embodiment, the depth of the second freezing chamber 33 at the lowest stage can be expanded in the same manner as the vegetable chamber 32, and the ice making chamber 34 that is frequently used in summer and is worried about odor transfer is provided in the refrigerator main body 2. By the provided independently in the middle, it is possible to provide a further refrigerator usability is enhanced well storage efficiency.

  These storage capacity and storage effect can be enjoyed even if the first freezer room 31, the second freezer room 33, and the vegetable room 32 are not drawer-type storage rooms. If it is a room, its utility is even greater. That is, as the depths of the second freezing room 33 and the vegetable room 32 both increase, the drawer allowance of the freezing room storage container 71 and the vegetable room storage container 70 can be increased depending on the selection of the rail, and the user can store the storage container. You can efficiently put in and take out the items while looking over the interior, and you can manage them hygienically with less forgotten use. When selecting rails, the effect can be further enjoyed by adopting high-quality bearing-type rails with high slidability and types of rails that have intermediate rails and can be extended to the outside of the warehouse. . Further, if the lengths of the rails are made substantially the same, the entire rail and a part of the components can be shared, so that the manufacturing cost can be reduced.

  The height of the first freezer compartment 31 is smaller than that of the second freezer compartment 33 for freezing and short-term storage. Freezing requires that the form of the food to be stored be thinned in order to freeze the food faster, and conversely, by increasing the height of the second freezer compartment 33, the merit of having a large capacity of frozen food stock, etc. There is. Furthermore, since the height near the first freezer compartment 31 is located near the center of the refrigerator main body 20, it is generally very easy to use. In this place, the ice making room 34 that is frequently used in summer. By adding a function that can respond to changes in the user's lifestyle, the value can be improved by providing the storage room with a function that can be switched from a refrigeration temperature zone to a freezing temperature zone. it can.

  Further, the second freezer compartment 33 and the vegetable compartment 32 have substantially the same height, and the second freezer compartment door 33a and the vegetable compartment door 32a have substantially the same height, whereby the second freezer compartment door 33a. And the component parts of the vegetable compartment door 32a can be shared, and the manufacturing cost can be reduced. When it is necessary to provide a difference in heat insulation between the second freezer compartment door 33a and the vegetable compartment door 32a due to the difference in temperature, the wall thickness of the hard urethane used as a heat insulation material is different, and the heat insulation door is completed as a finished product. However, if the surface condensation of the second freezer compartment door 33a does not occur on the basis of the wall thickness of the vegetable compartment door 32a, it can be used as a complete insulated door. In this case, material cost and management The entire manufacturing cost including the cost and man-hour cost can be greatly reduced. Furthermore, since it is the same door in terms of market service, inventory management becomes easy.

  For example, if a highly heat-insulating vacuum heat insulating material is used for the second freezer compartment door 33a, the difference in wall thickness with the vegetable compartment door 32a can be absorbed while maintaining the heat insulation performance, and the outer shape of the heat insulation door can be shared. This makes it easy to assemble in the manufacturing process.

  In addition, it is conceivable to share the freezer compartment storage container 70 and the vegetable compartment storage container 71 by making the heights of the second freezer compartment 33 and the vegetable compartment 32 substantially the same. The cost merit is great because it is a resin injection molded product.

  On the other hand, in the present embodiment, the compressor 83 is accommodated in the recess 82 formed in the back portion of the first top surface portion 80 of the heat insulation box 24 and is placed behind the uppermost portion of the refrigerator compartment 30 which is the uppermost storage chamber. It is configured to be located, and the rear of the uppermost part of the refrigerator compartment 30 is an area where the frequency of use was extremely low because it was originally difficult for the user to reach, and this area was a substantially invalid space. Even if the compressor is disposed, the storage capacity is not substantially infringed, and the effect of eliminating the compressor 83 from the rear region of the lowermost second freezer compartment 33 can be maximized, and the entire refrigerator. Can improve the overall usability in a well-balanced manner.

  As described above, in the present embodiment, a configuration has been proposed in which the overall convenience of the refrigerator is effectively improved in consideration of the balance of the entire refrigerator. However, regarding the arrangement configuration of the compressor 83, the second freezing chamber 33 and the vegetable chamber 32 at the bottom are provided. And if it arrange | positions other than the back area | region of the 1st freezer compartment 31, since the objective regarding a usability improvement will be achieved, it will not be restricted to this Embodiment, For example, if the height as a refrigerator permits, a heat insulation box It is also conceivable that the compressor 83 is placed on the first top surface portion 80 of the body 24.

  In the present embodiment, the pull-out vegetable compartment 32 is at the top and the second freezer compartment 33 is at the bottom, but the pull-out second freezer compartment 33 is at the top in the opposite arrangement. The same effect can be obtained even when the vegetable compartment 32 is at the bottom.

  In addition, as shown in FIG. 6, the storage room below the refrigerator compartment 30 is divided into left and right parts, and both rooms are partitioned by an insulated vertical partition wall 101. One storage room is a vegetable room 102, and the other storage room is a room. Regarding the layout in which the freezing chamber 103 is used and each front opening is closed with a revolving door, the compressor 83 does not exist at the lowermost stage of both chambers. Therefore, the same effect can be obtained.

  As described above, in the refrigerator according to the present invention, the compressor is placed behind the top surface of the heat insulation box, and the partition wall integrally formed with the heat insulation box improves the rigidity of the heat insulation box body and is easy to use. It is possible to widen the storage space with a good height, so that it can be widely applied to uses such as commercial refrigerators and freezers that are similar box bodies.

Front view of the refrigerator in Embodiment 1 of the present invention The front view of the heat insulation box of the state which opened the door of the refrigerator in Embodiment 1 of this invention BB sectional view of FIG. The perspective view of the top | upper surface part of the heat insulation box of the refrigerator in Embodiment 1 of this invention The disassembled perspective view of the 1st partition wall of the refrigerator in Embodiment 1 of this invention Front view of the refrigerator in Embodiment 1 of the present invention Front view of a conventional refrigerator Vertical section of a conventional refrigerator

Explanation of symbols

DESCRIPTION OF SYMBOLS 20 Refrigerator main body 21 Outer box 22 Inner box 23 Foam heat insulating material 24 Heat insulation box 30 Refrigerating room 31 1st freezer room 32 Vegetable room 33 2nd freezer room 34 Ice making room 30a Refrigerating room door 31a First freezer room door 32a Vegetable room door 33a 2nd freezer room door 40 1st partition wall 52 3rd partition wall 53 4th partition wall 54 5th partition wall 60 Cooler 80 1st top surface part 81 2nd top surface part 82 Concave part 83 Compressor 84 Notch part

Claims (9)

  An outer box that forms the refrigerator main body, an inner box, a heat insulating box body that is filled with a foam heat insulating material between the outer box and the inner box, and has a front surface opened, and a storage chamber that is partitioned into a plurality of sections in the heat insulating box body And a refrigerator comprising a plurality of partition walls partitioning the storage chamber, a compressor of a refrigeration cycle, and a cooler, wherein the compressor is placed at the upper rear of the uppermost storage chamber, The storage room is a refrigerating room composed of a revolving door for closing the front opening, and has a plurality of reserving rooms composed of drawer doors for closing the front opening under the refrigerating room, and the refrigerating room The partition wall that divides the storage room and its lower storage chamber is filled with foam heat insulating material so that the heat insulation box is integrated, and the cold storage room and the lower storage room are set in different temperature zones. A refrigerator characterized by.   The upper rear of the uppermost storage chamber on which the compressor is placed is configured by a recess formed by cutting out a part of the outer box and being one step lower than the top surface of the heat insulating box. Item 10. The refrigerator according to Item 1.   The refrigerator according to claim 1 or 2, wherein the uppermost storage room is a refrigeration room and the lower storage room is a first freezing room.   The heat insulation box is partitioned into a plurality of storage chambers, and the uppermost storage chamber is a refrigerating chamber composed of a revolving door for closing a front opening, and the storage chamber located below the refrigerating chamber is a front surface. The refrigerator according to any one of claims 1 to 3, wherein a first freezer compartment, a vegetable compartment, and a second freezer compartment are arranged in order from the top constituted by a drawer door for closing the opening. .   The refrigerator according to claim 4, wherein a height of the first freezer compartment is configured to be lower than a height of the second freezer compartment.   The refrigerator according to claim 4 or 5, wherein the vegetable compartment and the second freezer compartment have substantially the same height.   A plurality of partition walls partitioned into a plurality of storage chambers constituting the heat insulation box, a first partition wall partitioning the refrigeration chamber and the first freezing chamber, and the first freezing chamber; It has a 3rd partition wall which divides a vegetable compartment, and it filled with the foam heat insulating material so that all might become united with the said heat insulation box, It is any one of Claim 4 to 6 characterized by the above-mentioned. refrigerator.   The refrigerator according to any one of claims 3 to 7, wherein the first freezer compartment is set to be switchable from a freezing temperature zone to a refrigerated temperature zone.   The refrigerator according to any one of claims 3 to 8, wherein the first freezer compartment is divided into left and right by a thermally insulated partition wall and the ice making compartment is made independent.

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