JP3710743B2 - Cooling storage - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooling storage in which a cooling unit is stored in a drawer form.
[0002]
[Prior art]
Conventionally, in order to facilitate the assembly and maintenance of the cooling unit, a refrigerator has been proposed in which the entire unit can be pulled out from the front side of the housing. As an example, one disclosed in Japanese Utility Model Publication No. 7-35972, which is filed by the present applicant, is known, and this will be briefly described with reference to FIG.
On one side surface of the refrigerator main body 2 in which a plurality of drawer-type refrigerated boxes 1 are mounted, a cooling chamber 3 is formed overhanging on the upper side. The cooling chamber 3 communicates with the interior of the warehouse, and an entrance / exit 3A is formed in the front wall. A storage space 4 is provided below the cooling chamber 3. One cooling unit 5 is provided with a condenser unit 7 comprising a condenser 7A, a compressor, etc. on a substrate 6, and a cooling chamber lid 8 for closing the inlet / outlet port 3A of the cooling chamber 3 on the upper surface of the condenser 7A. Is installed, and a cooler 9 is attached to the back side thereof. The entire cooling unit 5 is stored in the storage space 4 on the condensing unit 7 side, the cooler 9 is inserted into the cooling chamber 3 through the inlet / outlet 3A, and the inlet / outlet 3A is closed by the cooling chamber lid 8.
[0003]
[Problems to be solved by the invention]
By the way, in the thing of the said conventional structure, since the cooler 9 is attached to the back surface of the cooling chamber lid | cover 8 in the cantilever form, there exists a possibility that it may incline by own weight depending on the condition of attachment. If it does so, the position of the cooler 9 in the cooling chamber 3 will shift and the flow path etc. will change slightly, cold air circulation will worsen and cooling performance will fall, or the cooler 9 will be arranged in the bottom part of the cooling chamber 3. This causes a problem that the cooling unit 5 is difficult to put in and out of contact with the drain pan.
Therefore, in order to prevent the cooler 9 from being inclined, the cooling chamber lid 8 to which the cooler 9 is attached is made larger, a portion where the cooler 9 is attached to the cooling chamber lid 8, or the cooling chamber lid 8 is connected to the condenser 7A. It is conceivable that the upper supporting portion has a more robust structure, but these all lead to an increase in the weight of the cooling unit 5 and cannot be easily handled due to the difficulty of taking in and out.
The present invention has been completed against the background as described above, and an object thereof is to prevent the tilt of the cooler with a simple structure.
[0004]
[Means for Solving the Problems]
As a means for achieving the above object, the invention of claim 1 is a cooling system in which a cooler is housed on the side of a body housing stored items and communicated with the inside of the body so that cold air can be taken in and out. And a storage space in which a condensing unit that constitutes a refrigeration cycle is accommodated between the chamber and the cooler, and a cooling chamber that closes an inlet / outlet opened to the cooling chamber from the condensing unit side A lid is protruded, the cooler is attached to the back side of the cooling chamber lid, and the condenser is stored in the storage space so that the cooler can be pulled out from the entrance to the cooling chamber, in cooling storage which is adapted doorway is closed by the cooling chamber cover, with the support member is provided on the cooler, on the ceiling side of the cold 却室 is hanging the support member slidably supported That the rail member, said formed along the out direction of the cooler, and the rail member may be in a width perpendicular to the loading and unloading direction of the cooler, the cooler and the ceiling surface of the cooling chamber It is characterized in that it is arranged so as to close the gap between the two .
[0005]
According to a second aspect of the present invention, in the first aspect, the support member is formed in a shape that makes a line contact or a point contact with the rail member along a direction in which the cooler is put in and out. It has the characteristics.
The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, the support member is provided on the front end side in the insertion direction of the cooler .
[0006]
[Action and effect of the invention]
<Invention of Claim 1>
The cooler is taken in and out of the cooling chamber while sliding in a state in which the support member provided therein is suspended and supported by the rail member, and is stored in a fixed posture in the cooling chamber. Since the cooler is held at a fixed position in the cooling chamber, a cooling air flow path and the like can be secured in a predetermined manner to improve the cooling performance, and the refrigerant pipe can be prevented from being bent. In addition, there is no possibility that the cooler interferes with other parts at the time of taking in and out, and the operation of taking in and out can be performed smoothly.
If there is a gap between the ceiling surface of the cooling chamber and the cooler, when the cooling operation is performed together with the driving of the cooling fan, the above-mentioned gap does not pass through the cooler when the internal air sucked from inside the main body passes through the cooler. There is a risk of a short cycle passing through and into the body.
In this respect, according to the present invention, the clearance between the ceiling surface of the cooling chamber and the cooler is closed by the rail member, and the above short cycle is prevented, so that the cooling efficiency is improved.
[0007]
<Invention of Claim 2>
The frictional resistance between the support member and the rail member can be kept small, and the cooling unit can be taken in and out more smoothly.
<Invention of Claim 3>
Since the projecting end side of the cooler is received, the load applied to the rail member can be kept small. On the other hand, the distance that the support member can be received by the rail member can be utilized to the maximum, and can be taken in and out more stably .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
1 and 2, reference numeral 10 denotes a main body of the refrigerator, which is formed in a horizontally long box shape opened on the front surface, and a refrigeration chamber 11 for storing foods is configured therein (see FIG. 4). The front opening is provided with a double door 12 and is supported by legs 13 provided at the four corners of the bottom.
The cooling unit 25 is detachably accommodated on the left side as viewed from the front of the main body 10.
[0009]
Specifically, a rectangular parallelepiped bulging portion 15 is formed on the upper side of the left side portion of the main body 10 so as to protrude from a position retracted from the front surface, and the inside thereof is a cooling chamber 16. A heat insulating material 17 is filled in the wall surface constituting the main body 10 including the bulging portion 15 (see FIG. 4), and heat insulation against the outside is ensured. An entrance / exit 18 is formed in the front wall of the cooling chamber 16, and a storage space 19 is formed on the lower surface side of the cooling chamber 16. The storage space 19 and the cooling chamber 16 form a condenser 29, a compression chamber. A cooling unit 25 including a machine 27, a cooler 35 (evaporator), and the like is housed in a freely retractable manner.
[0010]
A receiving plate 20 is stretched on the bottom surface of the storage space 19, and the substrate 26 of the cooling unit 25 can be placed on the receiving plate 20. The substrate 26 is formed in a U-shape with its left and right side edges bent, and a handle 26A is formed on the front edge thereof. The board 26 is pushed straight onto the receiving plate 20 from the front, and the pushing is stopped when the handle 26A comes into contact with the screw receiving piece 21 formed on the front edge of the receiving plate 20 so that the pushing is stopped. The board 26 is fixed at a predetermined position by being fastened with screws 32.
[0011]
The cooling unit 25 is divided into a part that is accommodated in the storage space 19 and a part that is accommodated in the cooling chamber 16, and these are arranged in a stacked manner on the substrate 26. As a portion to be stored in the storage space 19, a compressor 27 is disposed on the back side, a condenser fan 28 is disposed on the front side thereof, and a condenser 29 is disposed on the most front side. These correspond to the condensing unit 30 of the present invention. An auxiliary handle 26 </ b> B is also formed on the front edge of the upper surface of the condenser 29.
[0012]
An L-shaped bracket 33 is attached to the front end side of the upper surface of the condenser 29, and a lower end portion of the cooling chamber lid 34 for closing the inlet / outlet 18 of the cooling chamber 16 at the rising portion of the L-shaped bracket 33. Is fixed.
A cooler 35 that can be taken in and out of the cooling chamber 16 is attached to the back surface of the cooling chamber lid 34 via a bracket 36. The cooler 35 is housed and provided in a casing 37. As shown in FIG. 4, the bottom surface of the casing 37 and the lower portion of the surface opposite to the refrigerator compartment 11 are opened to collect air. An upper portion of the surface on the refrigerator compartment 11 side is opened to form an air outlet 39, and a cooling fan 40 is provided in front of the outlet 39.
[0013]
A refrigerant pipe 42 is circulated between the cooler 35 and the above-described condensing unit 30 to form a refrigeration cycle. Among the above-described pipes 42, pipes that are taken in and out of the cooler 35 are encapsulated with a heat insulating material tube, and are drawn out from the left edge portion of the cooling chamber lid 34 to the side. When the cooler 35 is accommodated in the cooling chamber 16, the drawn portion 42 </ b> A fits into the relief groove 18 </ b> A on the side edge of the inlet / outlet 18 of the cooling chamber 16 and is released.
[0014]
A drain pan 43 for receiving defrosted water or the like is provided on the bottom surface in the cooling chamber 16. A heat insulating packing 44 is attached to the periphery of the entrance / exit 18 on the front wall of the cooling chamber 16. A pair of mounting bolts 45 project from both upper and lower edges of the front wall, and an insertion hole 46 for the mounting bolt 45 is opened in the cooling chamber lid 34.
In addition, as shown in FIG. 4, a cold air guide plate 47 is provided in an inclined position between the cooling chamber 16 and the refrigerator compartment 11, and a return plate 48 is suspended from the lower surface of the guide plate 47. A return path 49 is provided to guide the internal air to the intake 38 side of the cooler 35.
[0015]
A support bracket 50 is provided on the upper surface of the casing 37 of the cooler 35, and a rail 55 is provided on the ceiling surface 16 </ b> A of the cooling chamber 16.
As shown in detail in FIG. 5, the support fitting 50 is formed of a stainless steel plate as a raw material, has a short channel shape as a whole, and the upper edges of the left and right side plates 51 are bent downward and obliquely downward. Further, the tip of the tip is hemmed (border processing with the end portion folded back) to form a contact edge 52.
The support fitting 50 is fixed to the front end position in the insertion direction on the upper surface of the casing 37 of the cooler 35 by welding or the like.
[0016]
One rail 55 is provided with a pair of left and right. The rail 55 is also made of a stainless steel plate, and has a length that reaches almost the far end from a position slightly entered from the entrance 18 of the cooling chamber 16, as shown in FIG. Further, as shown in detail in FIG. 5, one edge of the horizontal mounting portion 56 is bent at a right angle downward, and further, the lower edge is bent at a right angle to form a receiving portion 58.
The left and right rails 55 are arranged in such a posture that the receiving portions 58 face each other, and are arranged at intervals so that the left and right contact edges 52 of the support metal fitting 50 can be placed on the receiving portions 58. Is fixed to the ceiling surface 16 </ b> A of the cooling chamber 16 by fastening with a screw 59.
In addition, guides 60 are formed at the front edges of the receiving portion 58 and the hanging portion 57 of the rail 55 so as to be inclined downward or outward.
[0017]
A top plate 72 is stretched on the upper surface of the main body 10 including the bulging portion 15, and a side panel 73 and a rear panel 74 are stretched to cover the side surfaces and the rear surface of the cooling chamber 16 and the storage space 19. Furthermore, a front panel 75 is mounted on the front surface of the cooling chamber 16 and the storage space 19 so as to be swingable.
In the lower part of the front panel 75, an outside air inlet 76 is formed to cool the condensing unit 30, and an exhaust port 77 is formed in the left side of the upper part as viewed from the front, and in the side panel 73 and the rear panel 74. ing.
[0018]
The present embodiment has the structure as described above, and the operation thereof will be described subsequently.
When the cooling unit 25 is stored, the front panel 75 is opened and the substrate 26 is placed on the receiving plate 20 and pushed in. The cooler 35 and the condensing unit 30 are connected to the cooling chamber 16 and the storage space. 19 and stored separately.
Specifically, the cooler 35 is inserted into the cooling chamber 16 from the entrance 18 and when a predetermined amount is inserted, the left and right contact edges 52 of the support fitting 50 are placed on the receiving portions 58 of the left and right rails 55. Here, even if the front end side in the insertion direction of the cooler 35 is slightly inclined downward or the head is swung left and right, the contact edge 52 of the support fitting 50 hits the guide 60 and is guided there, thereby the cooler 35. The rider rides on the receiving portion 58 while the posture is corrected.
[0019]
When further pushed in, both contact edges 52 of the support fitting 50 slide while being supported by being suspended by the receiving portions 58 of the rails 55, and the cooler 35 is held in a predetermined horizontal posture to enter the cooling chamber 16. Inserted.
At the end of the insertion, when the mounting bolt 45 protruding from the front wall of the cooling chamber 16 is inserted into the insertion hole 46 of the cooling chamber lid 34 and pushed into a predetermined position, the lead-out portion 42A of the pipe 42 is released as the relief groove 18A. The cooling chamber lid 34 comes into contact with the front wall of the cooling chamber 16 via the heat insulating packing 44 and a nut (not shown) is screwed to the protruding end of the mounting bolt 45 that penetrates the cooling chamber lid 34. Then, the cooling chamber lid 34 hermetically closes the entrance 18 of the cooling chamber 16. Further, the substrate 26 is fixed to the receiving plate 20 as described above, whereby the cooler 35 is accommodated in the cooling chamber 16, while the condensing unit 30 is accommodated in the storage space 19. Finally, the front panel 75 is closed, and the storage of the cooling unit 25 is completed.
[0020]
When the condensing unit 30 and the cooling fan 40 are driven along with the cooling operation, the air in the refrigerator compartment 11 passes through the return path 49 and the lower intake of the cooler 35 as shown by the arrow in FIG. After being sucked from 38 and converted into cold air, it is blown out from the cooling fan 40 through the upper surface of the guide plate 47 to the ceiling surface side of the refrigerator compartment 11, that is, cold air is circulated and supplied to the refrigerator compartment 11.
At this time, a part of the air sucked from the refrigerator compartment 11 does not pass through the cooler 35 and is seen from the front of the cooler 35 and the cooling chamber 16 as shown by the arrow of the chain line in FIG. There is a risk that a short cycle may occur in which the space rises between the left side walls 16B and returns into the refrigerating chamber 11 through the gap between the upper surface of the cooler 35 and the ceiling surface 16A of the cooling chamber 16. However, a rail 55 is attached to the ceiling surface 16A of the cooling chamber 16 and functions so as to close a gap with the upper surface of the cooler 35, thereby preventing the short cycle as much as possible.
[0021]
When the cooling unit 25 is taken out for maintenance or the like, after opening the front panel 75, the nut that fixes the cooling chamber lid 34 is removed, and the screw 32 that is holding the substrate 26 is also removed. Then, the cooling unit 25 is pulled out by placing the hand on the upper and lower handles 26A, 26B.
During this time, as in the case of insertion, the cooler 35 slides on both of the contact edges 52 of the support fitting 50 while being suspended and supported by the receiving portions 58 of the rails 55, and cools while maintaining a predetermined horizontal posture. It is smoothly drawn out from the entrance 18 of the chamber 16.
[0022]
As described above, in this embodiment, the following many advantages can be obtained.
The support bracket 50 is supported by being suspended by the rail 55 so that it is tilted downward, and the swinging is also regulated by the hanging portion 57 of both rails 55, so that the cooler 35 is fixed in the cooling chamber 16. Is stored and stored. Therefore, the cooling air flow path and the like can be ensured to improve the cooling performance, and the refrigerant pipe 42 can be prevented from being bent. Furthermore, it is possible to prevent the defrosting heater provided in the cooler 35 from approaching the heat insulating portion and deteriorating the heat insulating portion, or to prevent defrost water from concentrating and flowing in one place during the defrosting.
[0023]
When the cooling unit 25 is put in and taken out, there is no possibility that the cooler 35 interferes with other parts such as the drain pan 43, and the taking in and out operation is performed smoothly.
Since the contact edge 52 of the support fitting 50 is placed on the receiving portion 58 of the rail 55 and slides in line contact along the direction of taking in and out, the frictional resistance between the support fitting 50 and the rail 55 is kept small, The cooling unit 25 can be taken in and out more easily.
Since the support metal fitting 50 is provided on the front end side in the insertion direction of the cooler 35, the distance that the support metal fitting 50 can be received by the rail 55 can be utilized to the maximum, and more stable insertion and removal can be expected. On the other hand, since the cantilever projecting end is suspended, the load applied to the rail 55 can be kept small.
[0024]
The support metal fitting 50 has a shape in which the upper edges of the left and right side plates 51 are bent obliquely downward on the outside and the contact edge 52 is provided at the tip thereof, so that the bent portion functions as a spring. For example, the cooling unit 25 A cushioning effect against an impact in the up and down direction can be obtained when transporting in a state where the container is stored.
In addition, since the rail 55 closes the gap between the upper surface of the cooler 35 and the ceiling surface 16A of the cooling chamber 16, the air in the cabinet returns to the refrigerator compartment 11 through the gap without passing through the cooler 35. Such a short cycle is prevented as much as possible, and the cooling efficiency in the refrigerator compartment 11 can be enhanced.
[0025]
<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) In the above embodiment, the refrigerator of the type in which the cooling chamber and the storage space are arranged up and down is illustrated, but the present invention is provided with the cooling chamber and the storage space arranged side by side on the base of the condensing unit. The present invention can be similarly applied to a refrigerator having a structure in which a cooling chamber lid is set up and a cooler is attached to the back surface thereof.
[Brief description of the drawings]
FIG. 1 is a front view of a refrigerator according to an embodiment of the present invention. FIG. 2 is a partially cutaway perspective view of a state before storing a cooling unit. FIG. ] Cross-sectional view from the front [Fig. 5] Partial enlarged front view showing the suspension support structure of the cooler [Fig. 6] Perspective view of the conventional example [Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Main body 11 ... Refrigeration room 16 ... Cooling room 16A ... Ceiling surface 18 (of the cooling room 16) ... Entrance / exit 19 ... Storage space 25 ... Cooling unit 26 ... Substrate 29 ... Condenser 30 ... Condensing unit 34 ... Cooling room lid 35 ... Cooler 37 ... casing 50 ... support fitting (support member) 52 ... contact edge 55 ... rail (rail member) 58 ... receiving part

Claims (3)

On the side of the main body where the stored items are stored, there is a condensing unit which constitutes a refrigeration cycle between the cooling chamber in which the cooler is stored and which is connected to the inside of the main body so that cool air can be taken in and out. A storage space to be stored is juxtaposed, and a cooling chamber lid that closes an inlet / outlet opened to the cooling chamber protrudes from the condensation unit side, and the cooler is provided behind the cooling chamber lid. In the cooling storage that is attached so that the condenser unit is stored in the storage space, the cooler is retractable from the entrance into the cooling chamber, and the entrance is closed by the cooling chamber lid.
Wherein with the support member is provided on the cooler, on the ceiling side of the cold 却室 is rail member for supporting hanging the support member to slidably, is formed along the out direction of the cooler And
The rail member is located within a width orthogonal to the direction of taking in and out of the cooler, and is disposed so as to close a space between the ceiling surface of the cooling chamber and the cooler. .   The said storage member is formed in the shape which carries out the line contact or point contact along the withdrawing / inserting direction of the said cooler with respect to the said rail member, The cooling storehouse of Claim 1 characterized by the above-mentioned.   The said storage member is provided in the front end side of the insertion direction in the said cooler, The cooling storehouse of Claim 1 or Claim 2 characterized by the above-mentioned.

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