JP2007064497A - Refrigeration storage box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a load of wiring work at an installation site. <P>SOLUTION: A cooler chamber 30 made of foaming resin is mounted on a unit base 20, and it is installed so as to cover an opening 14 of a top face 10A of a refrigerator body 10. A housing chamber 50 of an internal lamp 100 is indented in area facing the opening 14 in an outer bottom face of the cooler chamber 30. A drain pan 60 made of synthetic resin receiving defrost water is provided in a lower face side of a cooler 32 in the cooler chamber 30, a pair of attachment parts 67 formed with a lower hole 68 is integrally formed on the lower face, and the attachment part 67 is passed through an insertion hole 51 formed on a bottom wall 40A of the cooler chamber 30 to face a ceiling face of the housing chamber 50. The internal lamp 100 is attached to the ceiling face of the housing chamber 50 by fixing a lamp base 103 to the attachment part by a tapping screw 106. A lead wire 109 of the internal lamp 100 is connected beforehand to an electrical component box 35 provided in the cooling unit 30. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cooling storage, and more particularly to an improvement in an arrangement structure of interior lamps.

Conventionally, what was described in patent document 1 is known as an example of the panel type refrigerator used for a brown rice cold storage. In this case, the cooler and the cooling fan are accommodated in a cooler chamber formed of a foamed resin heat insulating material such as polystyrene to reduce weight, and the cooler chamber, a compressor, a condenser, etc. These refrigeration units are installed side by side on the base to form a unit. On the other hand, the refrigerator body is formed by assembling a plurality of panels, and an opening is provided on the top surface. The cooling unit described above is installed on the top surface while covering the opening in the cooler chamber, and is generated in the cooling chamber. The chilled air is circulated and supplied into the cabinet.
In order to minimize the volume during transportation of such a panel refrigerator, the cooling unit is either housed in the main body or shipped in a separate package, and the cooling unit is attached to the top surface of the main body at the installation site. It is common.
JP 2002-22344 A

Even in this type of panel refrigerator, an interior lamp for illuminating the interior is arranged, but it is necessary to secure the power supply after the interior lamp is attached to a predetermined location such as a wall surface in the interior. . For this purpose, it is usually connected to the power cable drawn from the cooling unit side. However, as described above, the cooling unit can be stored in the main unit or packaged separately during transportation. After installation on the surface, the power cable has to be passed through the cabinet and connected to the cabinet lamp, resulting in a problem of complicated wiring work at the installation site.
The present invention has been completed based on the above circumstances.

  In the first aspect of the invention, on the top surface of the storage body, a cooler chamber made of a heat insulating material and containing a cooler is installed so as to cover an opening formed in the top surface. In the cooling storage where the generated cold air is circulated and supplied into the storage, the storage facing the opening on the outer bottom surface of the cooler chamber accommodates an internal lamp that illuminates the interior. It is characterized in that the chamber is configured to be recessed.

  According to a second aspect of the present invention, in the first aspect of the present invention, a drain pan made of a synthetic resin that receives defrost water is provided on the lower surface side of the cooler in the cooler chamber. An attachment portion for attaching the interior lamp is integrally formed, and this attachment portion penetrates the bottom wall of the cooler chamber and faces the storage chamber.

According to a third aspect of the present invention, in the apparatus according to the first or second aspect, the cooler and the cooling fan are provided in a central portion on the bottom wall of the cooler chamber, while the bottom wall The air inlet and the cool air outlet are respectively opened at both ends, and the storage chamber is characterized in that it is formed on the outer bottom surface of the central portion of the bottom wall.
According to a fourth aspect of the present invention, there is provided the apparatus according to any one of the first to third aspects, wherein the cooler chamber is provided on a base together with a refrigeration apparatus including a compressor, a condenser, and the like that are circulated and connected to the cooler. It is characterized in that it is installed and unitized.

<Invention of Claim 1>
If the interior lamp is previously accommodated and installed in the accommodation room, the interior lamp is placed at a position where the interior can be illuminated through the opening as the cooler room is installed on the top surface of the storage body. The Since the cooler room itself equipped with the interior lamp is installed outside the storage such as the top surface of the storage body, when the interior lamp is powered, for example, the lead wire of the interior lamp is previously connected to the cooler room. It can be pulled out outside and connected to, for example, a power supply unit arranged on the top surface of the storage body outside the storage.
That is, the burden of wiring work at the installation site can be reduced. In addition, since the storage chamber is formed in a so-called dead space such as the outer bottom surface of the cooler chamber, it is possible to avoid an increase in space and bulk, whether it is stored in the main body or separately packed.

<Invention of Claim 2>
Along with the provision of the drain pan in the cooler chamber, the interior lamp mounting portion projecting from the lower surface of the drain pan passes through the bottom wall of the cooler chamber and faces the storage chamber. The mounting structure of the interior lamp is simply summarized, and the mounting portion is integrally formed with the drain pan, so that the number of parts can be reduced and it can be handled at low cost.

<Invention of Claim 3>
The inlet and the outlet need to be spaced apart to prevent a short cycle, and the outer bottom surface located between the inlet and the outlet becomes a relatively large dead space. By using the dead space, the accommodation chamber can be efficiently formed.
<Invention of Claim 4>
In the case where the cooler room is installed on the base together with the refrigeration unit and unitized, the interior lamp mounted in the storage room is connected to the power source provided in the cooling unit from the factory shipment stage. Therefore, the wiring work at the installation site can be simplified.

<Embodiment>
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In this embodiment, the panel type refrigerator used for brown rice cold storage etc. is illustrated.
1 and 2, reference numeral 10 denotes a refrigerator body, which is formed into a box shape with a front opening by assembling a plurality of heat insulating panels, and the inside is a storage chamber 11, which is arranged on the bottom surface. While being supported by the legs 12, a pair of left and right heat insulating doors 13 are mounted in a double door manner at the front entrance.

  A cooling unit 15 is installed on the top surface 10 </ b> A of the refrigerator body 10. As shown in FIGS. 3 and 5, the cooling unit 15 includes a refrigeration apparatus 70 including a compressor 71, an air-cooled condenser 72, and the like on one side on the unit base 20. A heat-insulating cooler chamber 30 is installed in the cooler chamber 30, and a cooler 32, a cooling fan 33, and a drain pan 60 that receives defrost water from the cooler 32 and the like are accommodated in the cooler chamber 30. Yes. On the lower surface side of the refrigeration apparatus 70, an evaporating dish 80 for storing and forcibly evaporating the drainage from the drain pan 60 is disposed, and an electrical box 35 is installed on the side of the condenser 72. The upper part is covered with an outer case 36A, 36B divided into two.

The unit base 20 is made of a metal plate, and as shown in FIG. 4, the unit base 20 is formed in a shape such that a shallow dish having a horizontally long rectangular planar shape is turned down, and a mounting plate 21 provided on the left and right side surfaces. Is fixed to the top surface 10 </ b> A of the refrigerator main body 10.
The region of the right half of the unit base 20 viewed from the back side is the installation space 22A of the refrigeration apparatus 70 and the like, and the formation region of the accommodation groove 89 in the evaporating dish 80 described later is opened at a position slightly closer to the front side. A window hole 23 is formed. The remaining area on the left side is an installation space 22B of the cooler chamber 30, and a rectangular fitting hole 24 into which the lower end of the cooler chamber 30 can be fitted is opened at the center.

The cooler chamber 30 and the internal structure thereof are as follows. The cooler chamber 30 is formed of a heat insulating material made of foamed resin such as polystyrene foam, and as shown in FIGS. 5 and 6, the cooler chamber 30 is divided into a base portion 40 and a cover 55 attached thereon. Yes.
The base 40 is formed in a rectangular box shape that is thick and has an opening on the upper surface. However, on the side surface adjacent to the refrigeration apparatus 70, a moderate mountain-shaped overhanging portion 41 is formed in the upper height range of about 2/3. One cover 55 is formed in the shape of a rectangular box that is also thick and has an opening on the lower surface. Similarly, the side surface adjacent to the refrigeration apparatus 70 projects in a gentle mountain shape like the base 40.
The bottom wall 40A of the base 40 has a front end portion (left side in FIG. 6) and a rear end portion that are opened through the outer bottom surface over the entire width, and a suction port 42 and a blowout port 43 are formed. A receiving surface 44 of the drain pan 60 is formed between the inlet 42 and the outlet 43.

The drain pan 60 is made of a synthetic resin, and as shown in FIGS. 7 and 8, the drain pan 60 is formed in a plate shape having a planar square as a whole with a peripheral wall around the entire periphery. A protrusion 61A protrudes from the bottom plate 61 of the drain pan 60 on the side adjacent to the refrigeration apparatus 70 and the rear corner (upper right corner in FIG. 7). The bottom plate 61 has a protruding end of the protrusion 61A. Is formed so as to have a downward slope from the periphery toward the same position, and a drain pipe 62 is formed downward at the protruding end.
The receiving surface 44 of the base portion 40 is formed in a concave shape so that the bottom side of the drain pan 60 fits tightly, and is formed in an inclined shape following the shape of the bottom plate 61 of the drain pan 60, and is opened at the deepest portion of the receiving surface 44. Through the insertion hole (not shown), the drain pipe 62 of the drain pan 60 protrudes to the lower surface side of the bottom wall 41 </ b> A of the overhang portion 41.
Guards 63 are integrally provided on the front and rear peripheral walls of the drain pan 60, and when the drain pan 60 is placed on the receiving surface 44, as shown in FIG. It protrudes at an upper position with the air outlet 43.

On the bottom plate 61 of the drain pan 60, the cooler 32 is supported by fitting the four corners of the lower surface to the support base 64 in the approximately 2/3 region on the front side, and the cooling fan is mounted on the remaining region on the rear side. 33 is supported by inserting the lower part thereof into the insertion part 65 from above.
The cover 55 is attached to the base 40 with the opening surfaces in close contact with each other by fitting the protrusions 46 formed on the opening surface of the base portion 40 into the concave grooves 56 formed on the opening surface thereof. At this time, the ceiling surface of the cover 55 is pressed against the upper surfaces of the cooler 32 and the cooling fan 33 so as to be firmly held.
An escape groove 47 is formed in the peripheral wall of the overhanging portion 41 of the base portion 40 so as to allow a later-described refrigerant pipe 79 to be fitted and escaped from above, and is closed by a closing plate 57 protruding from the opposing peripheral wall of the cover 55. It is like that.

  An installation structure on the refrigeration apparatus 70 side will be described. Roughly, as shown in FIG. 9, in the right installation space 22 </ b> A on the unit base 20, an evaporating dish 80 is installed on the side adjacent to the cooler chamber 30. The evaporating dish 80 is wide on the front side (upper side in FIG. 10) and protrudes to the right side, and has a narrow rear side. As shown in FIGS. 3 and 13, the evaporating dish 80 is located on the rear side in the installation space 22A. The compressor 71 is installed at a position deviating from the above, and a condenser 72 and a condenser fan 74 are attached to the front wide portion 81A of the evaporating dish 80 side by side.

In detail, the evaporating dish 80 is made of synthetic resin, and as shown in FIGS. 9 and 10, the evaporating dish 80 is formed in a dish shape with an open top surface with a peripheral wall around the periphery, and is provided with four engagement members illustrated on the left edge. While locking the pawl 82 in the locking hole 26, the front and rear two mounting plates 83 provided on the right edge are fixed on the unit base 20 by screwing.
The condenser 72 is installed on the upper surface of the front wall 84 of the evaporating dish 80. As shown in FIG. 11, the condenser 72 is formed with a bent plate 73 </ b> A bent inward at the lower ends of the left and right end plates 73, and the front ends of both bent plates 73 </ b> A serve as the upper surface of the front wall 84. Are inserted from the near side into the insertion groove 85, and the rear ends of both bent plates 73A are mounted on the support pillars 86 and locked by the elastic locking claws 86A.

A condenser fan 74 is disposed on the rear side of the condenser 72. From the wide portion 81A, a pair of left and right mounting legs 87 are raised so as to face each other with a gap therebetween, and a curved receiving surface 87A forming a part of a circle is formed over the upper surfaces of both mounting legs 87. Yes. The condenser fan 74 has a motor case 75 mounted on the receiving surface 87 </ b> A and is fixed by being pressed by a fixing member 76.
And as shown in FIG. 12, the compressor 71, the condenser 72, the dryer 77, the capillary tube 78, and the cooler 32 are circulated and connected by the refrigerant | coolant piping 79, and the refrigerating circuit is comprised.

In the rear side region of the outer bottom surface of the wide portion 81A, a plurality of housing grooves 89 facing in the left-right direction are formed at intervals, and hot gas drawn from the discharge side of the compressor 71 in the refrigerant pipe 79 is drawn. A pipe 79A is piped in a zigzag shape and fitted in the receiving groove 89 (see FIG. 17).
As shown in FIG. 9, the unit base 20 has a window hole 23 at a position corresponding to the piping region of the hot gas pipe 79 </ b> A, so that the hot gas pipe 79 </ b> A is prevented from hitting the unit base 20. ing. This prevents the hot gas pipe 79A from being damaged due to the vibration of the compressor 71 and the condenser fan 74 being transmitted from the unit base 20 to the hot gas pipe 79A.
Further, a flat L-shaped raised bottom 90 is formed from the rear position of the right edge of the narrow portion 81B to the rear edge, and an overflow groove 91 projects from the corner portion to the rear.

As shown in FIG. 13, when the evaporating dish 80 is installed on the unit base 20 together with the cooler chamber 30, the bottom wall of the protruding portion 41 of the base 40 is above the left side edge of the evaporating dish 80. At the same time, the drain pipe 62 of the drain pan 60 enters the inside of the left side wall of the evaporating dish 80.
Therefore, when the defrost water generated by the cooler 32 or the like during the defrosting operation is received by the drain pan 60, it flows down to the deepest protruding portion 61A and is then drained and stored in the evaporating dish 80 from the drain pipe 62. . Here, since the hot gas pipe 79A is provided on the outer bottom surface of the evaporating dish 80, the defrost water stored by the heat of the hot gas is heated and forcibly evaporated. Further, when the condenser fan 74 is driven, since the outside air is sucked and the condenser 72 is cooled and then passes through the upper surface of the evaporating dish 80, further evaporation is promoted.

In addition, at a position corresponding to the drain pan 62 of the drain pan 60 in the evaporating dish 80, as shown in FIG. 9 and FIG. A trap rib 93 having an approximately L shape is formed. Then, the lower end of the drain pipe 62 hangs down directly above the bottom surface of the region surrounded by the trap ribs 93, and the lower end of the drain pipe 62 is plunged into the defrosted water, thereby realizing a trap structure. Yes.
In addition, a guide rib 94 is formed to extend in parallel with the left side wall of the evaporating dish 80 from the end of the trap rib 93 on the side of the storage groove 89, and intersects the three storage grooves 89. It reaches almost the center in the front-rear direction in the formation region. Therefore, the defrost water from the drain pipe 62 is guided by the guide rib 94 and spreads over the entire region where the hot gas pipe 79A is provided. As a result, forced evaporation of defrost water is performed efficiently.

On the contrary, the hot gas flowing through the hot gas pipe 79A is efficiently heat-exchanged with the low-temperature defrost water, and can contribute to increasing the condensing capacity and thus the cooling capacity.
For example, when a large amount of brown rice is stored in August-September, the load increases due to the relatively high outside air temperature, and a high cooling capacity is required. In this regard, the new rice contains a large amount of water and has a large amount of frost on the cooler 32, and thus a large amount of defrosted water can be obtained. Therefore, the above heat exchange increases the hot gas condensing capacity, and thus the cooling capacity. It can cope with temporary improvement.

Further, since the air blown behind the condenser fan 74 is allowed to pass through the upper surface of the evaporating dish 80 to further promote the evaporation of the defrost water, the condenser is particularly filled or close to it. There is a concern that the water surface behind the fan 74 undulates and overflows, for example, from the peripheral wall 95A perpendicular to the side wall of the step portion 81C between the wide portion 81A and the narrow portion 81B of the evaporating dish 80.
As a countermeasure, the front end portion of the inclined peripheral wall 95B in the above stepped portion 81C extends flush with the peripheral wall 95B to form a wave preventing wall 96. As a result, undulation behind the wave barrier 96 is restricted, and overflow from the peripheral wall 95A in the left-right direction can be prevented. In addition, since the clearance gap is provided between the extension end of the wave preventing wall 96, and the right side wall of the evaporating dish 80, the water storage capacity of the evaporating dish 80 does not decrease. On the other hand, on the rear end side of the narrow portion 81B, the undulation is generated rather than draining from the overflow groove 91, and the defrost water is prevented from overflowing from other than the overflow groove 91.

Now, in this embodiment, the interior lamp 100 which illuminates the interior is arranged on the outer bottom surface of the cooler chamber 30.
Therefore, as shown in FIGS. 14 and 15, in the bottom wall 40 </ b> A of the base portion 40 of the cooler chamber 30, the storage chamber 50 of the interior lamp 100 is provided on the lower surface side of the central portion where the receiving surface 44 of the drain pan 60 is formed. Is drilled. In detail, the storage chamber 50 has a rectangular cross section extending over almost the entire width of the base portion 40 and is open to the lower surface.

In detail, the interior lamp 100 includes a lamp 101, a lamp socket 102, and a lamp base 103, as shown in FIG. The lamp base 103 is made of synthetic resin and is formed in a shallow rectangular box shape, and a mounting plate 104 that is bent outward at right angles from the opening edges of the front and rear side surfaces that are the long sides is formed. An insertion hole 105 for the tapping screw 106 is formed at the center of each length direction.
A cover 107 in which a strip having a predetermined width is formed in an arch shape is provided on one side in the length direction on the surface of the lamp base 103, and a mounting hole 108 for the lamp socket 102 is formed on the other side. ing. The lamp socket 102 is attached in a posture in which the opening faces the inside of the cover 107 by fitting the base 102 </ b> A into the attachment hole 108. A lead wire 109 is drawn out from the base portion 102A of the lamp socket 102, and an escape recess 110 through which the lead wire 109 passes is cut out on the end surface of the lamp base 103 where the mounting hole 108 is formed. Yes.

As shown in FIGS. 7 and 8, a pair of front and rear mounting portions 67 having a columnar shape are formed at intervals on the outer bottom surface of the drain pan 60, specifically, at a position close to the end portion on the relatively shallow side. ing. The interval between the two attachment portions 67 is equal to the interval between the two insertion holes 105 of the lamp base 103 described above. On the other hand, at the corresponding position on the receiving surface 44 of the base 40 of the cooler chamber 30, as shown in FIG. 15, an insertion hole 51 through which the mounting portion 67 of the drain pan 60 is inserted is formed on the ceiling surface of the storage chamber 50. It is formed through.
When the drain pan 60 is properly attached to the receiving surface 44, each attachment portion 67 is inserted into the corresponding insertion hole 51, and the lower surface of the attachment portion 67 almost reaches the lower end of the insertion hole 51, that is, the ceiling surface of the storage chamber 50. It is like that. A lower hole 68 into which the tapping screw 106 is screwed is formed at the center of the lower surface of the mounting portion 67.

Then, the effect | action of this embodiment is demonstrated.
The cooling unit 15 is assembled separately from the refrigerator main body 10. As an example of the assembly procedure, the hot gas pipe 79A is preliminarily arranged in a zigzag shape in the accommodation groove 89 provided on the outer bottom surface of the wide part 81A of the evaporating dish 80, and from this state, as shown in FIG. An evaporating dish 80 is attached to the unit base 20. Next, as shown in FIG. 3, the compressor 71 is attached to the space on the side of the narrow portion 81 </ b> B of the evaporating dish 80, and the condenser 72 is attached to the front end of the evaporating dish 80. In addition, a part of the refrigerant pipe 79 is piped.

  Next, the base 40 of the cooler chamber 30 is attached. A drain pan 60 is fitted into the receiving surface 44 of the base 40 in advance. Accordingly, the drain pipe 62 of the drain pan 60 protrudes from the lower surface of the bottom wall of the overhanging portion 41, and the front and rear guards 63 protrude from the upper positions of the suction port 42 and the air outlet 43, respectively. At the same time, as shown in FIG. 14, the mounting portion 67 protruding from the outer bottom surface of the drain pan 60 is inserted into the insertion hole 51 of the receiving surface 44, and the lower surface where the lower hole 68 is opened is the accommodation chamber 50. Facing the ceiling.

Then, the lamp socket 102 is fitted and fixed to the mounting hole 108 of the lamp base 103. As described above, the opening of the lamp socket 102 faces the cover 107, and the lead wire 109 drawn out from the base 102A of the lamp socket 102 is passed through the mounting hole 108 to the back side, and then passes through the relief recess 110. It is assumed that it is pulled out to the outside. From this state, the lamp base 103 is applied to the ceiling surface of the storage chamber 50 with the side on which the cover 107 is provided facing away from the evaporating dish 80, and the insertion holes 105 of both mounting plates 104 are formed on the ceiling surface. This is aligned with the attachment portion 67 of the drain pan 60 facing the insertion hole 51. Then, the tapping screw 106 is passed through the insertion holes 105 of the mounting plates 104 from below and is screwed into the lower holes 68 of the other mounting portions 67, so that the lamp base 103 is fixed to the ceiling surface of the storage chamber 50. In addition, the lamp 101 is mounted on the lamp socket 102. Thereby, the installation of the interior lamp 100 is completed, and at this time, the entire interior lamp 100 is in a state of being completely accommodated in the storage chamber 50.
Further, for example, as shown in FIG. 17, the lead wire 109 is drawn to the back side along the ceiling surface and then bent toward the suction port 42 side, and as shown in FIG. 2, the partition wall 50A between the lead wire 109 and the suction port 42 is formed. It goes around the lower end, passes through the guard 63, and is pulled out to the upper surface side of the suction port 42.

From this state, the base 40 is in a posture toward the right side when the overhanging portion 41 is viewed from the back, and the fitting protrusion 40B formed on the outer bottom surface of the base 40 is formed in the fitting hole 24 formed in the unit base 20. Closely fitted and placed in place. At this time, the drain pipe 62 of the drain pan 60 enters the inside of the trap rib 93 in the evaporating dish 80.
Next, the cooler 32 is installed on the bottom plate 61 of the drain pan 60. From this state, the compressor 71, the condenser 72, the dryer 77, the capillary tube 78, and the cooler 32 are circulated and connected by the refrigerant pipe 79 to constitute a refrigeration circuit. Portions of the refrigerant pipe 79 that are taken in and out of the cooler 32 are all inserted into the heat insulating tube 79B, and are fitted into the relief groove 47 of the base 40 as shown in FIG.
At the same time, the lead wire 109 on the interior lamp 100 side also passes through the end face of the cooler 32 and is then fitted into the escape groove 47 and pulled out to the installation space 22A side of the refrigeration apparatus 70, as shown in FIG. .

Subsequently, the cooling fan 33 is installed on the drain pan 60. Then, the cover 55 is put over the base 40. When the cover 55 is covered to the normal position, the cooler 32 and the cooling fan 33 are pressed against the ceiling surface to be firmly held, and the escape groove 47 through which the heat insulating tube 79B and the lead wire 109 are inserted is the closing plate 57. It is blocked. After that, a tape (not shown) is stuck on the joint between the base 40 and the cover 55 and sealed.
Next, a condenser fan 74 is attached to the rear side of the condenser 72 on the evaporating dish 80 and covers the upper surface and side surfaces of the condenser fan 74 from the upper surface of the condenser 72 so as to serve as a wind direction plate. (Not shown) is mounted.

In addition, the electrical box 35 is attached to the side of the installation position of the condenser 72 and the condenser fan 74 on the unit base 20. And the plug provided in the terminal of the lead wire 109 in the above-mentioned store is inserted and connected to a power outlet (not shown) provided in the electrical box 35. Further, outer cases 36A and 36B are covered and fixed to the unit base 20.
Thus, the assembly of the cooling unit 15 is completed. In this state, the air inlet 37 provided on the front plate of the first outer case 36A is located immediately before the condenser 72, and the second outer case 36B An exhaust port 38 provided in the rear plate is located behind a region extending from the compressor 71 to the narrow portion 81B of the evaporating dish 80, and the operation unit of the electrical box 35 faces the window hole 39 of the side plate. Further, the grip portions 98 provided at both front and rear ends of the evaporating dish 80 are arranged at the center portions in the width direction at the lower edges of the front plate and the rear plate.

The cooling unit 15 assembled as described above is stored in the refrigerator main body 10 or packed separately from the refrigerator main body 10 at the time of shipment.
At the installation site, after the refrigerator body 10 is installed, the cooling unit 15 is placed on the top surface 10A. For example, the cooling unit 15 is lifted by placing hands on both grips 98, and as shown in FIG. 2, the lower surface of the base 40 of the cooler chamber 30, that is, the inlet 42, the outlet 43, and the storage chamber 50 are provided in the refrigerator. The main body 10 is installed in a position corresponding to the opening 14 formed in the top surface 10A of the main body 10. Therefore, the interior lamp 100 mounted in the storage chamber 50 can also illuminate the interior of the storage chamber 11 through the opening 14.

The cooling operation is performed by driving the refrigeration apparatus 70 (the compressor 71 and the condenser fan 74) and the cooling fan 33, and as shown in FIG. In the storage chamber 11, the cooling air is sucked into the chamber 30 and cold air is generated by heat exchange while passing through the cooler 32, and the cold air is blown out from the outlet 43 to the storage chamber 11. Is cooled. During this time, the internal temperature is detected by the internal thermistor 69 provided in the guard 63 on the suction port 42 side, and depending on whether the detected temperature is higher or lower than a preset temperature, the refrigeration apparatus 70 and the cooling fan 33 are detected. Is turned on and off, so that the interior of the storage chamber 11 is maintained at a substantially set temperature.
Further, the defrosting operation is performed with an appropriate time interval, and the defrost water from the cooler 32 and the like is dropped on the drain pan 60 and then drained into the evaporating dish 80 through the drain pipe 62. The stored waste water is heated and forcedly evaporated by the heat of the hot gas flowing through the hot gas pipe 79A, as described above, and the outside air moves on the upper surface of the evaporating dish 80 as the condenser fan 74 is driven. Evaporation is further promoted by passing.

During this time, for example, each time the heat insulating door 13 is opened, the interior lamp 100 is energized, and the lamp 101 is turned on to illuminate the interior of the storage chamber 11.
In addition, when it is necessary to replace the lamp 101 due to the lamp out of the interior lamp 100 or the like, it can be easily replaced by putting the hand into the storage chamber 50 from the opening 14 of the top surface 10A of the refrigerator main body 10.

As described above, according to the present embodiment, since the storage chamber 50 is provided on the outer bottom surface of the cooler chamber 30 constituting the cooling unit 15 and the interior lamp 100 is attached thereto, the factory shipment stage. Therefore, the lead wire 109 for taking the power can be connected to the electrical box 35 provided in the cooling unit 15. Therefore, it is not necessary to perform a wiring work for taking power to the interior lamp 100 again at the installation site, and the installation work can be performed in a short time.
In addition, as a means for attaching the interior lamp 100 to the accommodation chamber 50, an attachment portion 67 is formed integrally with the drain pan 60 provided in the cooler chamber 30, and this is penetrated through the ceiling wall of the accommodation chamber 50. Since the structure is made to face 50, the mounting structure is simple and the number of parts can be reduced, so that it can be handled at low cost.

In addition, since the interior lamp 100 has a structure that is mounted so as not to protrude from the storage chamber 50, whether the cooling unit 15 is stored in the refrigerator main body 10 or separately packaged during transportation, The lamp 100 does not become an obstacle. Since the interior lamp 100 is provided outside the warehouse wall, the volume of the storage chamber 11 can be avoided from decreasing.
The inlet 42 and the outlet 43 need to be spaced apart from each other in order to prevent a short cycle, and the outer bottom surface located between the inlet 42 and the outlet 43 has a relatively large dead space. However, the storage chamber 50 can be efficiently formed by using the dead space.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) The present invention can be similarly applied to a case in which the cooler chamber is attached separately from the refrigeration apparatus, that is, not to be unitized. Even in this case, the lead wire of the interior light can be connected to the electrical box installed on the top surface of the refrigerator main body on the top surface outside the warehouse, so that the wiring work at the installation site is easy. Become.
(2) The procedure of assembling the cooling unit exemplified in the above embodiment is merely an example, and can be arbitrarily changed as necessary. Moreover, the lamp of the interior lamp and the exterior cover may be separately packaged at the time of shipment, and may be attached or assembled at the installation site.
(3) The lead wire of the interior lamp may be pulled out from the outlet side as opposed to the above embodiment. Moreover, you may make it notch and form the escape groove | channel which fits a lead wire and escapes in the lower end surface of the partition between a storage chamber and a suction inlet or a blower outlet.
(4) Further, the orientation of the cooling unit may be set such that the operation part of the electrical box is on the front, and the air supply / exhaust port for cooling air and the handle are on the left and right sides.

The front view of the refrigerator which concerns on one Embodiment of this invention Longitudinal section of cooler room Disassembled perspective view of cooling unit Unit base perspective view Exploded perspective view of cooler chamber Exploded sectional view Top view of drain pan Side view Perspective view with the evaporating dish attached to the unit base Top view of evaporating dish A perspective view of a state where a condenser and a condenser fan are attached to the evaporating dish Refrigeration circuit configuration diagram Plan view of the cooling unit before the cover of the cooler chamber is attached Partially cutaway perspective view of the cooling unit from the bottom side Exploded sectional view showing the mounting structure of the interior lamp Disassembled perspective view of interior lamp Partial bottom view of cooling unit

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Refrigerator main body (storage main body) 10A ... Top surface (of refrigerator main body 10) 14 ... Opening part 20 ... Unit base (base) 24 ... Fitting hole 30 ... Cooler room 32 ... Cooler 35 ... Electrical equipment box 40 ... Base 40A ... Bottom wall (of base 40) 42 ... Suction port 43 ... Outlet port 44 ... Receiving surface 50 ... Receiving chamber 51 ... Insertion hole 60 ... Drain pan 67 ... Mounting portion 68 ... Lower hole 70 ... Refrigeration device 71 ... Compressor 72 ... Condenser 100 ... Interior lamp 101 ... Lamp 102 ... Lamp socket 103 ... Lamp base 106 ... Tapping screw 109 ... Lead wire

Claims (4)

On the top surface of the storage body, a cooler chamber made of a heat insulating material and containing a cooler is installed so as to cover an opening formed in the top surface, and the cold air generated in the cooler chamber is stored inside In the cooling storage circulated to
The cooling storehouse | chamber characterized by the recessed part being formed in the area | region which faced the said opening part in the outer bottom face of the said cooler room | chamber, which accommodates the interior lamp which illuminates the inside of a warehouse | chamber interior and can be mounted | worn. A drain pan made of synthetic resin that receives defrost water is provided on the lower surface side of the cooler in the cooler chamber, and an attachment portion for attaching the interior lamp is integrally formed on the lower surface of the drain pan. 2. The cooling storage according to claim 1, wherein the cooling storage is disposed so as to penetrate the bottom wall of the cooler chamber and face the storage chamber. The cooler and the cooling fan are provided at the central portion on the bottom wall of the cooler chamber, while the air inlet and the cool air outlet are opened at both ends of the bottom wall, respectively. The said storage chamber is formed in the outer bottom face of the center part of the said bottom wall, The cooling storehouse of Claim 1 or Claim 2 characterized by the above-mentioned. 4. The cooling device according to claim 1, wherein the cooler chamber is unitized by being installed on a base together with a refrigeration apparatus including a compressor, a condenser and the like that are circulated and connected to the cooler. The cold storage according to crab.

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