JP5338216B2 - refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator comprising a unit protecting a cooler and other components from impact shock from the external in carrying and assembling a cooling unit. <P>SOLUTION: The damage of the cooling unit can be suppressed as this refrigerator includes the cooling unit 200 having the cooler 212 constituting a cooling cycle, a suction pipe 215 connected with the cooler 212, a heating source 213 for removing frost attached to the cooler 212, a housing 214 receiving the cooler 212 and the heating source 213, and an air blower 211 introducing the outside air into the housing 214; an inner box 121 made of resin and disposed inside the refrigerator 100 to define a refrigerating compartment, mounted with the cooling unit 200; an outer box 122 disposed outside the inner box 121 at a prescribed distance; and a heat insulating material 123 filled between the inner box 121mounted with the cooling unit 200 and the outer box 122. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a refrigerator, and more particularly to a cold-cooled refrigerator in which air cooled by a cooler is blown into a cabinet by a blower, and the air in the cabinet is sucked and cooled again.

  Conventionally, refrigerators placed in a humid environment often employ an intercooling type so that frost hardly adheres in the refrigerator. During this period, the refrigerator is not directly cooled by the cooler, which is a component of the circulating cooling means (cooling cycle), but the cooler is provided in the cooling chamber provided independently inside the refrigerator. It is a type of refrigerator that cools the air in the refrigerator by forcibly blowing the air cooled in the cooling chamber into the refrigerator and circulating the air.

  Specifically, the intercooling refrigerator includes a cooling chamber on the back side inside the refrigerator, and the cooling chamber has a cooling device, a blower for blowing air, and a heating source for removing frost generated in the cooling device. Etc. are provided. A duct for returning the air in the refrigerator compartment to the cooling chamber is provided on the side of the cooling chamber.

In the conventional cooling chamber, a cooler and the like are arranged from the front of the refrigerator, and piping and electric wiring are required on the back side of the refrigerator, which requires a great deal of labor. Therefore, Patent Document 1 describes an invention related to a refrigerator that can save labor in assembling the refrigerator by unitizing a cooler and other parts in advance outside the refrigerator and attaching the unit to the refrigerator.
JP 2003-121066 A

  However, although the invention described in the above-mentioned conventional patent document 1 can sufficiently contribute to labor saving in the assembling process of the refrigerator, the cooler and other parts are unitized in an exposed state. There is a possibility that the cooler and other parts are damaged during the stage of transporting the unit and during the assembly work of attaching the unit to the refrigerator body. In particular, the cooler is provided with a large number of thin plate-like fins, and the fins are highly likely to be bent or damaged by impact.

  The present invention solves the above-described conventional problems, and is a refrigerator including a unit in which a cooler and the like are integrated, and the cooler against an impact from the outside when the unit is transported or assembled. It aims at providing a refrigerator provided with a unit which can protect and other parts.

  In order to achieve the above conventional problems, the refrigerator of the present invention includes a cooler constituting a cooling cycle, a suction pipe connected to the cooler, and a heating source for defrosting frost adhering to the cooler. A cooling unit having a housing that houses the cooler and the heating source, a blower that circulates the cool air cooled by the cooler into a storage chamber, and a resin that is disposed inside the refrigerator and forms a storage chamber An inner box to which the cooling unit is attached, an outer box disposed at a predetermined distance outside the inner box, an inner box to which the cooling unit is attached, and the outer box And a heat insulating material filled between the two.

  As a result, a cooler, a heat source, and the like can be assembled and welded outside the refrigerator, so that workability is greatly improved, and the occurrence of defects in the welded portion can be suppressed. Moreover, since the assembled cooler and heating source are housed inside the housing, it is possible to protect components such as the cooler from external impacts when transporting the cooling unit. . Furthermore, when the cooling unit is attached to the inner box of the refrigerator, it is not necessary to protect the cooler excessively, and the cooling unit can be easily assembled, so that the workability in the refrigerator assembly can be greatly improved. It becomes possible.

  The refrigerator of this invention can provide a refrigerator provided with the unit which can protect a cooler and other components with respect to the impact from the outside at the time of conveyance or an assembly.

The invention according to claim 1 houses a cooler, a suction pipe connected to the cooler, a heating source for defrosting frost adhering to the cooler, the cooler and the heating source. A cooling unit having a housing and a blower that circulates cool air cooled by the cooler into a storage chamber, and a resin inner box that is disposed inside a refrigerator and forms a storage chamber, the cooling unit being attached An inner box, an outer box disposed at a predetermined distance outside the inner box, and a heat insulating material filled between the inner box and the outer box to which the cooling unit is attached. Bei example, the housing, the the front plate spread like disposed on the front cover and the heat source and the cooler, a back plate disposed on the back extends in the same manner as the front plate, and the front plate back A side wall disposed between the front plate and the front plate. The pipe to be directed inwardly abutting with the first support member to be projected, the back plate includes a second support member which is protruded inwardly directed abutting the pipe where the cooler has As a result, a cooler, a heat source, and the like can be assembled and welded outside the refrigerator, so that workability is greatly improved and the occurrence of defects in the welded portion can be suppressed. Moreover, since the assembled cooler and heating source are housed inside the housing, it is possible to protect components such as the cooler from external impacts when transporting the cooling unit. . Furthermore, when the cooling unit is attached to the inner box of the refrigerator, it is not necessary to protect the cooler excessively, and the cooling unit can be easily assembled, so that the workability in the refrigerator assembly can be greatly improved. It becomes possible. In addition, after installing the cooling unit in the inner box, when placing a jig against the foaming pressure when filling and foaming the insulation between the outer box and the inner box, By abutting against the front plate, the back plate can be supported via a relatively durable cooler pipe. Although the back plate receives the pressure generated during filling and foaming, the back plate is restrained from being deformed, and deformation of the cooler disposed inside the housing can be suppressed by deformation of the back plate .

The invention according to claim 2 houses a cooler, a suction pipe connected to the cooler, a heating source for defrosting frost adhering to the cooler, the cooler and the heating source. A cooling unit having a housing and a blower that circulates cool air cooled by the cooler into a storage chamber, and a resin inner box that is disposed inside a refrigerator and forms a storage chamber, the cooling unit being attached An inner box, an outer box disposed at a predetermined distance outside the inner box, and a heat insulating material filled between the inner box and the outer box to which the cooling unit is attached. The housing includes a front plate that is disposed on the front surface and extends so as to cover the cooler and the heating source, a back plate that is disposed on the rear surface and extends in the same manner as the front plate, and the front plate and the back plate. a side wall disposed between the consists, the front plate, said blower A first bulging portion that extends along the flow path of the generated cool air and contacts the fin of the cooler, and the back plate extends along the flow path of the cool air and extends to the fin of the cooler. By providing a second bulging portion that comes into contact, after attaching the cooling unit to the inner box, a refrigerator for resisting the foaming pressure when filling and foaming the heat insulating material between the outer box and the inner box is refrigerator. When the jig is placed inward, the bulging portion extending along the flow path of the cold air widely contacts the fins of the cooler extending in the same direction by bringing the jig into contact with the front plate. It becomes possible to support the back plate via the. Therefore, although the back plate receives the pressure generated during filling and foaming, the back plate is prevented from being deformed, and deformation of the cooler and the like disposed inside the housing can be suppressed by deformation of the back plate.

According to a third aspect of the present invention, in the second aspect of the present invention, the cooler has a reinforcing fin that is in contact with the first bulging portion or the second bulging portion and is longer than the other fins. By providing, since the 1st bulge part and the 2nd bulge part contact | abut to a reinforcement | strengthening fin, it becomes possible to resist a pressure more firmly and to support a backplate.

The invention according to claim 4 accommodates a cooler, a suction pipe connected to the cooler, a heating source for defrosting frost adhering to the cooler, the cooler and the heating source. A cooling unit having a housing and a blower that circulates cool air cooled by the cooler into a storage chamber, and a resin inner box that is disposed inside a refrigerator and forms a storage chamber, the cooling unit being attached An inner box, an outer box disposed at a predetermined distance outside the inner box, and a heat insulating material filled between the inner box and the outer box to which the cooling unit is attached. The housing is disposed on the front surface and spreads so as to cover the cooler and the heating source; a side wall integrally provided on the periphery of the front plate; and the front plate disposed on the back surface. back plate and consists spread in the same manner as the side walls, the junction between the back plate The back plate is provided with a flange that comes into contact with the back plate, and the back plate has a flat portion that comes into contact with the flange and the surface at the joint with the side wall, so that the housing is in contact with the surface. Since they are joined and assembled, it is possible to obtain a casing without leaking cold air without attaching a flexible sealing member to the joint portion. Therefore, it is possible to reduce the time and labor for assembling the cooling unit, and it is possible to reduce the component cost.

According to a fifth aspect of the present invention, in the second aspect of the invention, the frozen ice is a resin that comes into contact with the fins by attaching a soundproofing material so as to cover the outer surface of the second bulging portion. The icing ice and the soundproofing material are in contact with each other without contacting the second bulging portion constituted by the above, and the generation of abnormal noise can be reduced in a wider area.

The invention according to claim 6 is the invention according to claim 5 , wherein the soundproofing material is urethane foam, so that it can be obtained at a low cost and works more effectively as a cushioning material against frozen ice. Thus, rubbing noise can be absorbed, and the generation of abnormal noise can be further reduced.

  Next, an embodiment of the refrigerator according to the present invention will be described with reference to the drawings. The same reference numerals are given to the same configurations as those of the conventional example or the embodiment described above, and a detailed description thereof will be given. Omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a front view of the refrigerator according to Embodiment 1 of the present invention.

  As shown in FIG. 1, a refrigerator 100 according to the present embodiment is a refrigerator 100 including a double door and includes a storage compartment partitioned into a plurality of heat insulating boxes 101.

  The storage compartment divided into a plurality of the refrigerator 100 has a refrigeration compartment 102, an ice making compartment 105, an ice making compartment 105, and a switching compartment 106, a vegetable compartment 103, which can change the temperature inside the compartment, according to its function (cooling temperature). Also called the freezer compartment 104 or the like.

  At the front opening of the refrigerator compartment 102, a rotary heat insulating door 107 filled with a heat insulating material 123 such as urethane is provided.

  The ice making chamber 105, the switching chamber 106, the vegetable chamber 103, and the freezing chamber 104 are each provided with a heat insulating plate 108, thereby sealing the storage chamber so that there is no leakage of cold air.

  The heat insulating box 101 is a rectangular parallelepiped box formed by filling a heat insulating material 123 such as hard foamed urethane between a metal outer box 122 and a resin inner box 121. The heat insulating box 101 insulates the inside of the heat insulating box 101 from the ambient temperature existing outside the refrigerator 100.

  The refrigerator compartment 102 is a storage compartment maintained at a low temperature that does not freeze for refrigerated storage. The lower limit of the specific temperature is usually set at 1 to 5 ° C.

  The vegetable room 103 is a storage room that is set to a temperature that is equal to or slightly higher than that of the refrigerator compartment 102. Specifically, it is set at 2 ° C to 7 ° C. In addition, the freshness of leafy vegetables can be maintained for a long time as the set temperature in the vegetable compartment 103 is lowered in the temperature range.

  The freezer compartment 104 is a storage compartment set in a freezing temperature zone. Specifically, although it is normally set at −22 to −18 ° C. for frozen storage, it may be set at a low temperature of −30 or −25 ° C., for example, in order to improve the frozen storage state.

  The ice making chamber 105 is a storage chamber in which an ice making machine (not shown) is provided, and ice is made by the ice making machine and stored.

  The switching chamber 106 can be switched from a refrigeration temperature zone to a freezing temperature zone according to the use by an operation panel attached to the refrigerator 100.

  FIG. 2 is a longitudinal sectional view of the refrigerator in the first embodiment of the present invention, and shows a state cut along the line AA in FIG.

  As shown in FIG. 2, the top surface portion of the heat insulating box 101 is formed with a recess 113 so as to be stepped down toward the back surface of the refrigerator 100, and the first top surface portion 111 and the first surface portion lowered by one step. A second top surface portion 112. In addition to the compressor 114 and the like, the recess 113 mainly stores high-pressure side components that constitute the circulation cooling means. That is, the recess 113 in which the compressor 114 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 102.

  Therefore, the compressor 114 is not disposed in the rear region of the lowermost storage chamber of the heat insulating box 101 that has been generally used conventionally.

  Here, the circulation cooling means is a device for realizing a cooling cycle, and an annular pipe through which the refrigerant circulates, a compressor in the middle of the pipe path, a condenser (Condenser), It is an apparatus provided with an expansion valve (Expansion valve) and a cooler (Evaporator). The circulating cooling means has a function of forcibly transferring heat from one space to the other space by releasing heat with a condenser and absorbing heat with the cooler. It is possible to cool the inside of the refrigerator by arranging the condenser outside the refrigerator.

  A partition wall 116 is disposed between each of the freezer compartment 104, the vegetable compartment 103, the switching room 106 (ice making room 105), and the refrigerator compartment 102. Since the partition wall 116 is a part that is assembled to the heat insulating box 101 after the heat insulating box 101 is foamed, expanded polystyrene is usually used as the heat insulating material 123.

  In order to improve the heat insulation performance and the rigidity of the entire refrigerator 100, a space for forming the partition wall 116 is provided in the inner box of the heat insulation box 101, and the inside of the heat insulation box 101 is filled with rigid foamed urethane as the heat insulating material 123. At the same time, the partition wall 116 may be formed by filling the space with rigid foamed urethane. In this case, since the space for welding the cooler 212 and the pipe 247 becomes narrower, the effect of the present invention is further exhibited. Furthermore, the partition structure may be further thinned by using a highly heat insulating vacuum heat insulating material 123 as the partition wall 116.

  The refrigerator 100 according to the present invention is a cold-cooled refrigerator 100, and includes a cooling unit 200, a duct 117 through which air cooled by the cooling unit 200 passes, a cooling unit 200 and a duct 117 in addition to the above-described components. A decorative board 115 is provided for covering and covering so as not to touch the human eye.

  The decorative plate 115 is a resin panel that covers the inner side of the heat insulating box 101 and includes a discharge port for discharging air (cold air) blown through the duct 117.

  The duct 117 is a space for guiding the air cooled by the cooling unit 200 to each storage chamber, and a damper 171 is provided in the middle of the duct 117 in order to adjust the air guide amount.

  Next, the cooling unit 200 will be described in detail.

  FIG. 3 is a perspective view showing an appearance of the cooling unit of the refrigerator in the first embodiment of the present invention.

  FIG. 4 is an exploded perspective view showing the cooling unit of the refrigerator in the first embodiment of the present invention.

  As shown in FIG. 3 and FIG. 4, the cooling unit 200 is a device that sucks air from below and cools it inside the cooling unit 200, and forcibly blows the cooled air. 214. The housing 214 includes a lid body 243 and a back plate 260. A cooler 212 and a heating source 213 are disposed inside the housing 214, and a suction tube 215 is disposed on the rear surface of the housing 214.

  The blower 211 is a device that can forcibly blow the air cooled by the cooler 212 inside the casing 214 to the outside of the casing 214, and is provided on an inclined portion 241 provided at the upper part of the front surface of the casing 214. It is attached. In this embodiment, an axial fan is employed as the blower 211, but the present invention is not limited to this, and an arbitrary blower 211 such as a sirocco fan may be employed.

  The casing 214 includes a thin rectangular box-shaped portion that is hermetically sealed except for a part of the suction port 242 provided at the bottom, the inclined portion 241 to which the blower 211 is attached, and the like in the box-shaped portion. Air sucked from the suction port 242 opening downward is blown out of the housing 214 by the blower 211. The casing 214 includes a front plate 250 to which the blower 211 is attached, a back plate 260, and a side wall 270. In the case of the present embodiment, the front plate 250 and the side wall 270 are integrally formed to constitute a lid 243.

  The suction pipe 215 is a tubular member that connects the cooler 212 and the compressor 114, and is a suction pipe. The suction pipe 215 is attached while being wound around the back surface of the cooling unit 200 until the cooling unit 200 is attached to the inner box 121. In addition, after the cooling unit 200 is attached, the suction pipe 215 is extended and connected to the compressor 114.

  FIG. 5 is a perspective view showing cooling unit 200 with the lid removed from the refrigerator casing in the first embodiment of the present invention.

  As shown in FIG. 5, a cooler 212, an accumulator 217, and a heating source 213 are provided inside the housing 214.

  The cooler 212 is a member that constitutes a circulating cooling means, and is a cooler 212 that absorbs the heat of the air around the cooler 212 and evaporates the refrigerant in the cooler 212 to cool the air. The cooler 212 includes a pipe 247 through which the refrigerant passes and fins 248 attached to the outside of the pipe 247. Further, the cooler 212 includes reinforcing fins (not shown) that are longer than the other fins 248 and have high structural strength.

  In the present embodiment, a fin-and-tube heat exchanger is used as the cooler 212, but the present invention is not limited to this, and corrugated fins and flat tubes are employed. Any heat exchanger such as a heat exchanger can be applied.

  The heating source 213 is a heater for defrosting frost adhering to the surface of the cooler 212 when the cooler 212 comes into contact with humid air, and heats the cooler 212 only when necessary. The heating source 213 is a bar-shaped device arranged over the entire width of the cooler 212. In the case of this embodiment, a glass tube heater is used as the heating source 213, but other heaters may be used.

  The accumulator 217 is a component having a function of separating the evaporated gaseous refrigerant from the liquid refrigerant and directing only the gaseous refrigerant to the compressor 114.

  FIG. 6 is a perspective view showing the lid of the refrigerator according to Embodiment 1 of the present invention from the back.

  The lid 243 is a shallow tray-shaped member that includes the front plate 250 and the side wall 270. The lid 243 is integrally provided with a side wall 270 on three sides of the front plate 250, and a suction port 242 is formed below the side wall 270. As shown in FIG. 6, the front plate 250 includes a first support member 251, a first support column 252, a first bulging portion 253, and a closing member 254 (see FIG. 9).

  The first support member 251 is a member whose front end abuts against the pipe 247 of the cooler 212 and is integrally protruded from the back surface of the front plate 250 toward the back. The first support member 251 is a thin plate-like member that is narrower than the interval between the fins 248 and extends in the cold air flow direction. The first support member 251 has a function of keeping the distance between the front plate 250 and the pipe 247 constant.

  The first support column 252 is a member that protrudes integrally from the back surface of the front plate 250 toward the back, and is disposed at a position that does not interfere with the pipe 247 and the fin 248 of the cooler 212. The first support column 252 is a cylindrical member whose width is narrower than the interval between the fins 248. The first support column 252 is in contact with the second support column 262 projecting from the back plate 260 and has a function of keeping the distance between the front plate 250 and the back plate 260 constant.

  The first bulging portion 253 is a portion in which a part of the front plate 250 bulges back (see FIG. 8A), and has a shape extending along the cold air flow direction. The first bulging portion 253 has a function of improving the structural strength of the front plate 250, and the first bulging portion 253 and the fins 248 of the cooler 212 are linearly contacted along the flow direction of the cold air. A function of keeping a constant distance between the front plate 250 and the cooler 212 is provided. In particular, the first bulging portion 253 is in contact with a reinforcing fin (not shown).

  FIG. 7 is a perspective view showing the back plate of the refrigerator according to Embodiment 1 of the present invention from the front.

  As shown in FIG. 7, the back plate 260 includes a second support member 261, a second support column 262, and a second bulge portion 263.

  The second support member 261 is a member whose tip is in contact with the pipe 247 of the cooler 212, and is a member that protrudes integrally from the back surface of the back plate 260 toward the front. The second support member 261 is a thin plate-like member that is narrower than the interval between the fins 248 and extends in the cold air flow direction. The second support member 261 has a function of keeping the distance between the back plate 260 and the pipe 247 constant. The second support member 261 is disposed so as to be on the same line as the first support member 251 in the front-rear direction. Accordingly, the distance between the front plate 250 and the back plate 260 can be kept constant via the pipe 247 without giving a couple force to the pipe 247 to bend the pipe 247.

  The second support column 262 is a member that protrudes integrally from the front surface of the back plate 260 toward the front, and is disposed at a position that does not interfere with the pipe 247 and the fin 248 of the cooler 212. The second support column 262 is a columnar member whose width is narrower than the interval between the fins 248. The second support column 262 is disposed at a position in contact with the first support column 252 protruding from the front plate 250.

  FIG. 8A is a cross-sectional view of the front plate of the refrigerator in the first embodiment of the present invention, and FIG. 8B is a cross-sectional view of the back plate of the refrigerator in the first embodiment of the present invention.

  The second bulging portion 263 is a portion in which a part of the back plate 260 bulges forward (see FIG. 8B), and has a shape extending along the cold air flow direction. The second bulging portion 263 has a function of improving the structural strength of the back plate 260, and the second bulging portion 263 and the fin 248 of the cooler 212 are linearly contacted along the flow direction of the cold air. A function of keeping the distance between the back plate 260 and the cooler 212 constant is provided. In particular, the second bulging portion 263 is arranged so as to ride on the same line in the front-rear direction as the first bulging portion 253, and the reinforcing fin (not shown) provided in the cooler 212 is connected to the first bulging portion 253. It is interposed between the second bulging portion 263. Accordingly, the distance between the front plate 250 and the back plate 260 can be kept constant via the first bulging portion 253, the reinforcing fin 249, and the second bulging portion 263.

  FIG. 9 is a perspective view showing the lower part of the lid of the refrigerator in the first embodiment of the present invention.

  As shown in FIG. 9, an opening 255 is provided on the lower side of the front plate 250, and a closing member 254 that can freely open and close the opening 255 is provided.

  The opening 255 is a portion of the front plate 250 that forms a notch-shaped opening provided to directly support the back plate 260 through the opening 255 from the front of the cooling unit 200. The openings 255 are provided on both sides of the lower end of the front plate 250 (the right-side opening 255 is not shown). This position corresponds to the end side of the heating source 213.

  The closing member 254 is a plate-like member that closes the opening 255 so as to be openable and closable, and is a member that is integrally extended from one side of the opening 255, that is, from the front plate 250. In the case of the present embodiment, there are two cutting portions extending upward from the lower end of the front plate 250, and a portion sandwiched between the two cutting portions is the closing member 254. A groove is provided so as to connect the upper ends of the two cut portions. Therefore, the thickness of the front plate 250 is reduced at the groove portion, and the closing member 254 can be caused like a hinge.

  As described above, the opening 255 can be opened and closed by the closing member 254. Therefore, when the cooling unit 200 is transported or attached, the closing member 254 is closed to protect the inner heating source 213, and the heat insulating material is used. When filling and foaming, it is possible to open the closing member 254 and receive the jig in the opening 255. In addition, when the filling and foaming of the heat insulating material is finished, it is possible to close the closing member 254 and prevent leakage of cold air.

  FIG. 10 is a cross-sectional view showing a joint portion between the refrigerator lid and the back plate according to Embodiment 1 of the present invention.

  As shown in FIG. 10, a flange 271 extends outwardly from the distal end edge of the side wall 270 provided in the lid 243. On the other hand, the back plate 260 is provided with a flat portion 272 at a portion where the tip of the side wall 270 contacts.

  As described above, since the flange 271 is provided on the side wall 270 provided on the lid 243, even if the side wall 270 receives pressure due to filling foaming, it can sufficiently resist. Further, since the joint portion between the side wall 270 and the back plate 260 is joined by a surface, it is possible to prevent the leakage of cold air from the joint portion without using a separate sealing member for the joint portion, and the housing 214 can be manufactured at low cost. It becomes possible to form.

  FIG. 11 is a view showing the cooling unit of the refrigerator according to Embodiment 1 of the present invention from the back.

  As shown in FIG. 11, a reinforcing member 265 is attached to the back surface portion of the cooling unit 200.

  The reinforcing member 265 is a strip-shaped member extending over substantially the entire width of the cooling unit 200. In the present embodiment, the reinforcing member 265 is an iron plate. By the reinforcing member 265, deformation of the back plate 260 when subjected to foaming pressure is suppressed as much as possible, and the cooler 212 and the heating source 213 disposed inside the casing 214 are protected from damage and deformation. Is possible.

  In this embodiment, the reinforcing member 265 is a strip-shaped member that extends over substantially the entire width direction of the cooling unit 200, but it does not necessarily extend over substantially the entire width direction of the cooling unit 200. In particular, the reinforcing member 265 may be provided only in a portion where the deformation amount of the back plate 260 when receiving the foaming pressure is large.

  Next, the assembly manufacturing process of the refrigerator 100 provided with the said structure is demonstrated.

  First, separately from the main body of the refrigerator 100, the cooling unit 200 is manufactured in advance. Specifically, the cooler 212, the accumulator 217, and the like are attached to the back plate 260, and the suction pipe 215 and other pipes are connected by welding or the like. At this time, the suction pipe 215 has a length that can be connected to the compressor 114 in a state where the cooling unit 200 is attached, and the suction pipe 215 is coiled so as not to obstruct the operation of attaching the cooling unit 200. It is in a state wound around.

  On the other hand, the blower 211 is attached to the lid 243.

  Next, the lid body 243 is assembled to a predetermined place of the back plate 260. At this time, the conducting wire extending from the blower 211 is passed through the hole of the back plate 260.

  As described above, since the cooling unit 200 can be manufactured separately from the main body of the refrigerator 100, it is possible to easily connect the cooler 212, the accumulator 217, the suction pipe 215, and other pipes. Is possible. In addition, it is possible to suppress the occurrence of manufacturing problems such as poor welding, and it is possible to improve the reliability of the refrigerator 100 and the yield.

  FIG. 12 is a perspective view showing the cooling unit attached to the inner box of the refrigerator according to Embodiment 1 of the present invention by cutting out a part of the inner box.

  As shown in FIG. 12, a separately manufactured cooling unit 200 is attached to the inner box 121.

  Next, the outer box 122 and the inner box 121 are arranged at predetermined positions, and the heat insulating material 123 is filled and foamed between the outer box 122 and the inner box 121.

  FIG. 13 is a cross-sectional view showing the cooling unit when the heat insulating material of the refrigerator according to Embodiment 1 of the present invention is filled and foamed.

  FIG. 14 is a cross-sectional view showing the cooling unit in another cross section when the refrigerator heat insulating material according to Embodiment 1 of the present invention is filled and foamed.

  As shown in FIGS. 13 and 14, when filling and foaming the heat insulating material 123, a jig 273 is disposed inside the inner box 121 to resist the pressure (arrow) received from the heat insulating material 123. 250 or the like. Further, a part of the jig 273 passes directly through the opening 255 where the closing member 254 is opened, and is in direct contact with the back plate 260. In addition, the jig 273 is in contact with the corresponding portion of the first support 252 of the front plate 250.

  Thereby, since the back plate 260 is supported directly and indirectly through the first support column 252 and the second support column 262 so as to resist the pressure received from the heat insulating material 123, the deformation of the back plate 260 is prevented. Is suppressed as much as possible. Therefore, deformation and damage to the cooler 212 and the heating source 213 arranged inside the housing 214 can be suppressed.

  Further, a metal strip-shaped reinforcing member 265 is attached to the back surface of the back plate 260 and ribs are raised, so that deformation of a portion not supported by the jig 273 is also suppressed. In addition, since the first support member 251 supports the back plate 260 via the pipe 247 and the second support member 261 of the cooler 212, the deformation of the back plate 260 is further suppressed.

  As described above, according to the present embodiment, since cooling unit 200 can be manufactured separately from the main body of refrigerator 100, piping can be easily welded. Moreover, since the cooler 212 and the heat source 213 are accommodated in the housing 214, the cooling unit 200 can protect the inside from an impact when the cooling unit 200 is transported or attached to the refrigerator 100 main body. It becomes possible.

  Furthermore, the heat insulating material 123 is filled and foamed after the cooling unit 200 is attached to the inner box 121. At this time, the cooling unit 200 is sandwiched between the pressure during filling and foaming and the drag of the jig 273. However, even in this case, the cooling unit 200 is crushed because the distance between the front plate 250 and the back plate 260 is directly regulated by the first support column 252 and the second support column 262. It is suppressed. Furthermore, since the back plate 260 can be directly held by the jig 273 through the front plate 250, the cooling unit 200 can be sufficiently protected. Furthermore, since the front plate 250 or the back plate 260 and the relatively high strength portion of the cooler 212 are in contact with each other, the cooling unit 200 is not crushed even in the portion between the columns.

(Embodiment 2)
FIG. 15 is a perspective view showing the back plate of the refrigerator according to the second embodiment of the present invention from the front.

  In the present embodiment, the difference from the first embodiment is that the third support column is provided on the back plate. Therefore, the different points will be mainly described. Detailed description of the same configuration as that of the first embodiment will be omitted.

  As shown in FIG. 15, the third support column 300 is a member that protrudes integrally from the front surface of the back plate 260 toward the front, and is disposed at a position that does not interfere with the pipe 247 and the fin 248 of the cooler 212. Yes. The third support column 300 is a columnar member whose width is narrower than the interval between the fins 248. The third support column 300 protrudes from the cooler 212 in the substantially vertical center.

  More specifically, the third support column 300 protrudes from the second support column 262 at a predetermined interval in the left-right direction at the place where the cooler 212 is disposed on the front surface of the back plate 260. ing. Here, the height of the third support column 300 is higher than the height of the second support column 262, and the tip end of the third support column 300 is in contact with the back surface of the lid 243.

  Thereby, the first support column 252 provided on the lid 243 abuts with the central second support column 262 protruding from the back plate 260 in a butted state, and the third support column 262 provided in the left-right direction of the second support column 262. The support 300 is in direct contact with the back surface of the lid 243, and when the lid 243 is attached to the back plate 260, the operator is in a state where the first support 252 and the second support 262 are in contact with each other. It is only necessary to confirm the location, and it is not necessary to confirm the butted state of a plurality of locations (that is, the third strut 300 does not need to confirm the butted state of the struts). There is no deterioration in workability when attaching to the plate 260.

  Further, since the back plate 260 is supported not only by the second support column 262 but also by the third support column 300 so as to resist the pressure received from the heat insulating material 123, the deformation of the back plate 260 in the vicinity of both right and left ends is prevented. Suppressed as much as possible. Therefore, deformation and damage in the vicinity of both the left and right ends of the cooler 212 and the heating source 213 disposed inside the housing 214 can be suppressed.

  The back plate 260 is made of ABS. As a result, deformation of the back plate 260 itself due to heat generated when filling and foaming the heat insulating material 123 can suppress the deformation amount by increasing the deflection temperature (thermal deformation temperature) of the load as compared with PP. Compared with the deformation when used, the deformation can be further suppressed, and the deformation and damage of the cooler 212 and the heating source 213 arranged inside the housing 214 can be further suppressed.

  In the present embodiment, the third support column projecting from the back plate 260 is two in total in the left-right direction of the second support column. One or two or more may be used.

(Embodiment 3)
In the present embodiment, what is different from the second embodiment is the height of the column provided on the back plate, and therefore, the different points will be mainly described. Detailed description of the same configuration as in the first and second embodiments is omitted. In the description of the present embodiment, the description will be made without using the drawings.

  The fourth strut (not shown) is a member that projects integrally from the front surface of the back plate 260 toward the front, and is disposed at a position that does not interfere with the pipe 247 and the fin 248 of the cooler 212. The fourth support column is a columnar member that is narrower than the interval between the fins 248. Note that the fourth support column protrudes substantially at the center of the cooler 212 in the vertical direction.

  More specifically, three fourth support columns project from the place where the cooler 212 is disposed on the front surface of the back plate 260 at predetermined intervals in the left-right direction. Here, the heights of the three fourth columns are substantially the same, and the tips of the fourth columns are in direct contact with the back surface of the lid 243.

  As a result, the fourth support column comes into direct contact with the back surface of the lid body 243, and when attaching the lid body 243 to the back plate 260, the operator does not need to confirm the abutting state of the support columns. Thus, workability when the lid 243 is attached to the back plate 260 does not deteriorate.

  Further, since the back plate 260 is supported through the three fourth support columns so as to resist the pressure received from the heat insulating material 123, deformation in the vicinity of the left and right ends of the back plate 260 is suppressed as much as possible. The Therefore, deformation and damage in the vicinity of both the left and right ends of the cooler 212 and the heating source 213 disposed inside the housing 214 can be suppressed.

  In addition, by making the height of the three fourth support columns substantially the same, workability when attaching the lid 243 to the back plate 260 is improved, and at the same time, the back plate can be more reliably pressed. Further, deformation and damage near the center of the back plate 260 can be further suppressed.

  That is, in the present embodiment, as shown in the second embodiment, the back plate 260 is not provided with two kinds of support columns (second support column and third support column) having different heights. By projecting a fourth column having a single height, the tip of the fourth column is in direct contact with the back surface of the lid 243.

  In the present embodiment, the fourth struts protruding from the back plate 260 are three in total in the left-right direction of the back plate 260, but are not necessarily three, for example, one or three It is good also as above.

(Embodiment 4)
FIG. 16: is a perspective view which shows the backplate of the refrigerator in Embodiment 4 of this invention from the front.

  In the present embodiment, the difference from the second embodiment is that a soundproof material is wound around the second column and the third column provided on the back plate, and a soundproof material is attached to the second bulge portion. Therefore, the difference will be mainly described. Detailed description of the same configuration as that of the second embodiment will be omitted.

  As shown in FIG. 16, the back plate 260 includes a second column 262, a third column 300, and a second bulge portion 263 (not shown).

  The second support column 262 is a member that protrudes integrally from the front surface of the back plate 260 toward the front, and is disposed at a position that does not interfere with the pipe 247 and the fin 248 of the cooler 212. The second support column 262 is a columnar member whose width is narrower than the interval between the fins 248. The second support column 262 is disposed at a position in contact with the first support column 252 protruding from the front plate 250.

  As shown in FIG. 16, the third support column 300 is a member that protrudes integrally from the front surface of the back plate 260 toward the front, and is disposed at a position that does not interfere with the pipe 247 and the fin 248 of the cooler 212. Yes. The third support column 300 is a columnar member whose width is narrower than the interval between the fins 248. The third support column 300 protrudes from the cooler 212 in the substantially vertical center.

  More specifically, the third support column 300 protrudes from the second support column 262 at a predetermined interval in the left-right direction at the place where the cooler 212 is disposed on the front surface of the back plate 260. ing. Here, the height of the third support column 300 is higher than the height of the second support column 262, and the tip end of the third support column 300 is in contact with the back surface of the lid 243.

  Thereby, the first support column 252 provided on the lid 243 abuts with the central second support column 262 protruding from the back plate 260 in a butted state, and the third support column 262 provided in the left-right direction of the second support column 262. The support 300 is in direct contact with the back surface of the lid 243, and when the lid 243 is attached to the back plate 260, the operator is in a state where the first support 252 and the second support 262 are in contact with each other. It is only necessary to confirm the location, and it is not necessary to confirm the butted state of a plurality of locations (that is, the third strut 300 does not need to confirm the butted state of the struts). There is no deterioration in workability when attaching to the plate 260.

  Further, since the back plate 260 is supported not only by the second support column 262 but also by the third support column 300 so as to resist the pressure received from the heat insulating material 123, the deformation of the back plate 260 in the vicinity of both right and left ends is prevented. Suppressed as much as possible. Therefore, deformation and damage in the vicinity of both the left and right ends of the cooler 212 and the heating source 213 disposed inside the housing 214 can be suppressed.

  When the refrigerator is operating, it is necessary to defrost frost adhering to the surface of the cooler 212 when the cooler 212 comes into contact with humid air, and the heating source 213 disposed below the cooler 212. Is heated. That is, defrosting is started. At this time, when the heating source 213 is heated, the back plate 260 disposed behind the heating source 213 is thermally expanded and deformed (moved) in the forward direction. On the other hand, icing may occur between the second column 262 and the fin 248, between the second column 262 and the pipe 247, or between the second bulge portion 263 and the fin 248. That is, when the heating source 213 is heated, when the second strut 262 and the second bulging portion 263 made of resin are deformed (moved) forward by thermal expansion, the second strut 262 and the second swollen portion are formed. The protruding portion 263 and the frozen ice may rub against each other, and abnormal noise may be generated.

  Here, in the present embodiment, the urethane foam 400 is wound around the second support column 262 as a soundproof material so as to cover the outer periphery. Specifically, the urethane foam 400 is wound so as to cover the outer peripheral surface over substantially the entire region of the second support column 262 in the height direction.

  Thereby, the frozen ice does not come into contact with the second support 262 made of resin, and the frozen ice and the urethane foam 400 come into contact with each other, so that the generation of abnormal noise can be reduced.

  Further, by using urethane foam 400 as a soundproofing material, it can be obtained at a low cost, and more effectively acts as a buffering material against frozen ice, and can absorb rubbing noise, thereby reducing the occurrence of abnormal noise. .

  Moreover, the urethane foam 400 is affixed so that the 2nd bulging part 263 (not shown) may be covered. Specifically, the urethane foam 400 is affixed over substantially the entire area in the vertical direction of the second bulging portion 263.

  As a result, the frozen ice does not come into contact with the second bulging portion 263 made of resin that comes into contact with the fins 248, and the frozen ice and the urethane foam 400 come into contact with each other. Generation of abnormal noise can be reduced.

  Further, the urethane foam 400 is wound around the third support column 300 in the same manner as the second support column 262.

  Further, the urethane foam 400 is attached in the vertical direction in the left-right direction near the upper portion of the region where the cooler 212 of the back plate 260 is installed, and also on the left end and the right end where the cooler 212 is installed.

  In the present embodiment, the urethane foam 400 is wound so as to cover the outer peripheral surface over almost the entire area in the height direction of the second support column 262. However, the urethane foam is provided in the vicinity of the front end surface of the second support column 262. If the same effect is obtained without winding the urethane foam, the urethane foam does not have to be wound around the front end surface.

  In this embodiment, urethane foam is used as the soundproofing material. However, for example, a vinyl tube or a silicon tube may be used.

  In the present embodiment, the urethane foam 400 is wound around all of the second support column 262 and the third support column 300 so as to cover the outer peripheral surface. There is no need to wrap around.

  As described above, the refrigerator according to the present invention includes a cooling unit capable of resisting the pressure generated during filling and foaming of the heat insulating material, and thus is applicable to various types and sizes of refrigerators for home use and business use. it can.

Front view of the refrigerator in Embodiment 1 of the present invention The longitudinal cross-sectional view of the refrigerator in Embodiment 1 of this invention The perspective view which shows the external appearance of the cooling unit of the refrigerator in Embodiment 1 of this invention. The perspective view which decomposes | disassembles and shows the cooling unit of the refrigerator in Embodiment 1 of this invention. The perspective view which shows the cooling unit which removed the cover body from the housing | casing of the refrigerator in Embodiment 1 of this invention. The perspective view which shows the cover body of the refrigerator in Embodiment 1 of this invention from back The perspective view which shows the backplate of the refrigerator in Embodiment 1 of this invention from the front (A) Sectional view of the front plate of the refrigerator in Embodiment 1 of the present invention (b) Sectional view of the backplate of the refrigerator in Embodiment 1 of the present invention The perspective view which shows the lower part of the cover body of the refrigerator in Embodiment 1 of this invention. Sectional drawing which shows the junction part of the cover body and backplate of the refrigerator in Embodiment 1 of this invention. The figure which shows the cooling unit of the refrigerator in Embodiment 1 of this invention from the back The perspective view which cuts off a part of inner box and shows the cooling unit attached to the inner box of the refrigerator in Embodiment 1 of this invention Sectional drawing which shows the cooling unit when the heat insulating material of the refrigerator in Embodiment 1 of this invention is filled and foamed. Sectional drawing which shows the cooling unit in another cross section when the heat insulating material of the refrigerator in Embodiment 1 of this invention is filled and foamed. The perspective view which shows the backplate of the refrigerator in Embodiment 2 of this invention from the front The perspective view which shows the backplate of the refrigerator in Embodiment 4 of this invention from the front

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Refrigerator 101 Heat insulation box 102 Refrigeration room 103 Vegetable room 104 Freezer room 105 Ice making room 106 Switching room 107 Heat insulation door 108 Heat insulation board 111 1st top surface part 112 2nd top surface part 113 Recessed part 114 Compressor 115 Decorative plate 116 Partition wall 117 Duct 121 Inner Box 122 Outer Box 123 Heat Insulating Material 171 Damper 200 Cooling Unit 211 Blower 212 Cooler 213 Heating Source 214 Housing 215 Suction Pipe 217 Accumulator 241 Inclined Part 242 Suction Port 243 Lid 247 Pipe 248 Fin 249 Reinforcement Fin 250 Front Plate 251 1st support member 252 1st support | pillar 253 1st bulging part 254 obstruction | occlusion member 255 opening part 260 back plate 261 2nd support member 262 2nd support | pillar 263 2nd bulging part 265 reinforcement member 270 side wall 271 flange 272 plane 273 jig 300 third strut 400 urethane foam (soundproofing material)

Claims (6)

Cooled by the cooler, a suction pipe connected to the cooler, a heating source for defrosting frost adhering to the cooler, a housing for housing the cooler and the heating source, and the cooler A cooling unit having a blower for circulating cold air into the storage chamber, a resin inner box disposed inside the refrigerator to form the storage chamber, the inner box to which the cooling unit is attached, and the inner box e Bei the outer box which is arranged at a predetermined distance outward, and a heat insulating material is filled between the outer box and the inner cooling unit is mounted said box, wherein the housing includes a front A front plate that is arranged to extend so as to cover the cooler and the heating source, a back plate that is arranged on the back surface and extends in the same manner as the front plate, and a side wall that is arranged between the front plate and the back plate And the front plate is in contact with the pipe of the cooler. It includes a first support member projecting toward the said back plate, refrigerator to pipe the cooler has Ru with a second support member which is protruded inwardly directed abutting. Cooled by the cooler, a suction pipe connected to the cooler, a heating source for defrosting frost adhering to the cooler, a housing for housing the cooler and the heating source, and the cooler A cooling unit having a blower for circulating cold air into the storage chamber, a resin inner box disposed inside the refrigerator to form the storage chamber, the inner box to which the cooling unit is attached, and the inner box An outer box disposed at a predetermined distance on the outside, and a heat insulating material filled between the inner box and the outer box to which the cooling unit is attached, and the casing is provided on the front surface. A front plate that is arranged and spreads so as to cover the cooler and the heating source, a back plate that is arranged on the back surface and spreads in the same manner as the front plate, and a side wall that is arranged between the front plate and the back plate, consists, the front plate, the flow path of the cold air generated by the blower Extends along, with the first bulging portion which abuts on the fins of the cooler, the back plate, extends along a flow path of the cold air, with the second bulge abuts the fins of the cooler refrigerators that. The refrigerator according to claim 2 , wherein the cooler is provided with a reinforcing fin that is in contact with the first bulging portion or the second bulging portion and is longer than the other fins. Cooled by the cooler, a suction pipe connected to the cooler, a heating source for defrosting frost adhering to the cooler, a housing for housing the cooler and the heating source, and the cooler Cold air storage room
A cooling unit having a fan to be circulated therein, a resin inner box disposed inside the refrigerator to form a storage chamber, and an inner box to which the cooling unit is attached, and a predetermined outside of the inner box An outer box that is disposed at a distance of, and a heat insulating material that is filled between the inner box to which the cooling unit is attached and the outer box. a front plate extending to cover the condenser and said heat source, and a side wall erected integrally with the peripheral edge of the front plate, a back plate disposed on the back extends in the same manner as the front plate, made of the sidewall comprises abutting flanges by the back plate and the surface at the junction between the back plate, the back plate, the flange and refrigerator to Ru with a flat portion in contact with the surface at the junction between the side wall . The refrigerator of Claim 2 which affixed the soundproof material so that the outer surface of said 2nd bulging part might be covered. The refrigerator according to claim 5 , wherein the soundproofing material is urethane foam.