JP4911141B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator, and particularly to a holding structure for a compressor that is one of cooling cycle components.

  Conventionally, the compressor, which is one of the components in the refrigerator's cooling cycle, is a relatively heavy component in the refrigerator, and is one of the devices that serve as the excitation source and sound source. It needs to be attached to the refrigerator above. Furthermore, since it is connected by copper piping etc. as a refrigeration cycle and encloses and uses refrigerant or refrigeration oil in a sealed interior, it is not only the vibration of the compressor itself but also the transportation and movement of the refrigerator, etc. The refrigeration cycle must be prevented from being damaged by external forces that are variously affected by the shaking of the house.

  If the piping is damaged, the refrigerant leaks and the performance of the cooling system cannot be maintained. In addition, refrigerators that are non-CFC-compliant with HC refrigerant use flammable refrigerant, so the refrigerant will not leak. , There is a possibility of degrading multiple safety designs that do not ignite.

  Furthermore, in recent years, refrigerators having a configuration in which a compressor is disposed at the upper part in order to increase the inner capacity of the lower part, which is easy to use, are produced and sold. In this configuration, the upper compressor may be greatly displaced in the vibration mode with the lower part as the fixed end on the floor and the upper part as the free end. There is a possibility of receiving a large external force.

  Furthermore, in recent years, many models that use inverters have become widespread, and while the entire refrigerator has been reduced in noise, higher levels of vibration and soundproofing measures are required for compressors.

  To prevent the heavy compressor from being displaced by external force and damaging piping, etc., the compressor should be firmly fixed to the refrigerator body. Conversely, if it is fixed to a rigid body, the vibration generated from the compressor will be generated. Since it cannot be suppressed, it is necessary to perform both vibration-proof support and position fixing at the same time (see, for example, Patent Document 1).

  FIG. 16 shows a configuration of a conventional refrigerator described in Patent Document 1. As shown in FIG.

  As shown in FIG. 16, a base 198 made of a metal plate is screw-fixed on a resin floor plate 204, and a compressor 203 is held via a vibration isolator 205 made of a cylindrical anti-vibration rubber.

  The base 198 has a highly rigid structure in which a plurality of metal pins 243 are fixed to the metal plate 199 by caulking vertically.

  Further, a leg 231 having a hole 233 provided at the tip is attached to the compressor 203, and a protrusion provided on the upper part of the vibration isolator 205 is fitted into the hole 233 so as to be supported for vibration isolation. Further, the pin 243 is provided with a stopper 260 so that the leg 231 does not fall off from the tip. The stopper 260 includes an E-ring that fits into a groove provided on the pin, and is provided at a position where the vibration isolator 205 and the leg 231 are not normally touched.

With this configuration, the pins that receive the compressor 203 with respect to vibrations, loads and shocks received during various transports and movements of the refrigerator, as well as moments and lateral loads applied to the compressor when the refrigerator is tilted sideways, etc. Since 243 is made of metal and has high rigidity, the compressor 203 can be firmly held, and since the pin 243 and the metal plate 199 are also fixed by caulking or the like, pin breakage can be prevented. Furthermore, since the base 198 is firmly fixed to the floor plate 204 and is made of metal and has high rigidity, the base 198 can be prevented from being broken, the compressor 203 is held, and piping damage can be prevented.
JP 2007-3182 A

  However, in the above configuration, although sufficient strength can be ensured, there are many components and many processing steps and assembly steps, so that the cost is increased and the manufacturing cost is increased. In addition, the idea of adding parts and configuring them with metal to increase rigidity and ensure strength is contrary to resource saving and increases weight. Furthermore, the influence of weight increase increases the energy used in various ways from product manufacture to distribution.

  In addition, it is difficult to secure the strength by reducing the number of parts and weight by eliminating the metal member by forming the base and pins made of metal integrally with the resin floor board. It is.

  In particular, when installing the refrigerator, the refrigerator may be greatly tilted (to the extent that the refrigerator is almost horizontal), and the compressor mounted with play with respect to the pin is greatly displaced. Thus, the entire compressor load is applied to the pin at once. As a result, the pins provided integrally with the resin floor board may not resist the impact force from the compressor, and the pins may be destroyed or the floor board provided with the pins may be damaged. However, it was a big problem in securing strength.

  The present invention has been made in view of the above problems, and is equipped with a compressor so that it can sufficiently withstand the impact of the compressor when the refrigerator is tilted, and it is also reduced in cost, weight, and resource saving. The purpose is to provide a refrigerator that contributes to commercialization.

In order to solve the above-described conventional problems, a refrigerator according to the present invention includes an outer box, an inner box, a heat insulating box formed of a heat insulating material provided between the outer box and the inner box, and the heat insulating box. A refrigerator comprising a compressor that constitutes a cooling cycle for cooling the inside, a machine room that houses the compressor in an outer portion of the heat insulation box, and a resin floor board that constitutes a floor surface of the machine room. A plurality of support walls integrally projecting with resin on the upper surface of the floor plate, and a plurality of vibration isolation bodies are disposed in an internal space surrounded by the support walls to support the vibration isolation of the compressor, A support wall faces the outer surface of the vibration isolator, and an internal space from the back surface of the floor plate to the support wall is foam-filled with the heat insulating material.

  As a result, in the normal use state of the refrigerator, the movable range of the vibration isolator is restricted by the support wall provided integrally with the floor plate in spite of the fact that the refrigerator has a reduced number of parts and weight. Since the compressor is placed on the vibration isolator, it is possible to effectively exhibit the vibration isolating performance and the sound insulating performance.

In addition, the outer surface area of the anti-vibration body supports the bearing wall against vibrations and shocks that are received during various transportation and movements of the refrigerator, as well as moments and lateral loads applied to the compressor when the refrigerator is tilted sideways. Compared to the conventional center pin alone, the impact force and load can be dispersed, and the joint with the floor plate where stress tends to concentrate is also located inside the vibration isolator. Compared to a larger cross-sectional area, impact force and load can be dispersed.
In addition, since the interior space of the bearing wall is filled with a heat insulating material, the rigidity of the bearing wall is increased, and even if the pin is broken or the headed pin attached to the tip of the pin is removed, the compressor The leg is held by the bearing wall, and the compressor can be prevented from becoming unstable.
Moreover, compared with the case where resin is filled in the internal space of the support wall, the weight can be reduced, the stability of the refrigerator body can be improved, and the vibration of the refrigerator body can be reduced.

  According to the present invention, even a refrigerator having a reduced number of parts used can prevent vibrations and noises generated by the compressor during normal use. When the refrigerator is tilted sideways, the compressor can be held sufficiently against a moment applied to the compressor, a lateral load, and the like.

Therefore, it is possible to prevent a large displacement of the compressor, absorb an impact, and prevent a gas leak due to piping damage of the cooling system.
In addition, since the interior space of the bearing wall is filled with a heat insulating material, the rigidity of the bearing wall is increased, and even if the pin is broken or the headed pin attached to the tip of the pin is removed, the compressor The leg is held by the bearing wall, and the compressor can be prevented from becoming unstable.
Moreover, compared with the case where resin is filled in the internal space of the support wall, the weight can be reduced, the stability of the refrigerator body can be improved, and the vibration of the refrigerator body can be reduced.

The invention according to claim 1 constitutes a heat insulation box made of an outer box, an inner box, a heat insulating material provided between the outer box and the inner box, and a cooling cycle for cooling the inside of the heat insulation box. A refrigerator including a compressor, a machine room that houses the compressor in an outer shell of the heat insulation box, and a resin floor board that constitutes a floor surface of the machine room, and is integrated with an upper surface of the floor board A plurality of support walls projecting from resin are provided, and a plurality of vibration isolator members are disposed in an internal space surrounded by the support wall to support the vibration isolation of the compressor. Despite being opposed to the outer surface, the internal space from the back surface of the floor plate to the support wall is a refrigerator in which the number of parts and weight used are reduced by foam filling with the heat insulating material, In the normal use state of the refrigerator, a support wall provided integrally with the floorboard The movable range of isolator is restricted, since a state in which the compressor is mounted on the isolator, it is possible to exhibit effectively vibration damping performance and sound insulation performance.

In addition, the vibration isolator is received by the support wall against vibrations and shocks that are received during transportation and movement of the refrigerator, and the moment and lateral load applied to the compressor when the refrigerator is tilted sideways. Compared to the case where only the pin located at the center of the arm is used, the impact force and load can be dispersed and the joint with the floor plate where stress is likely to concentrate is also broken compared to the pin placed inside the vibration isolator. The area can be increased, and the impact force and load can be dispersed.
In addition, since the interior space of the bearing wall is filled with a heat insulating material, the rigidity of the bearing wall is increased, and even if the pin is broken or the headed pin attached to the tip of the pin is removed, the compressor The leg is held by the bearing wall, and the compressor can be prevented from becoming unstable.
Moreover, compared with the case where resin is filled in the internal space of the support wall, the weight can be reduced, the stability of the refrigerator body can be improved, and the vibration of the refrigerator body can be reduced.

  According to a second aspect of the present invention, in the first aspect of the present invention, a plurality of pins integrally projecting from the upper surface of the floor plate are provided inside the support wall at a predetermined distance from the support wall. Although the plurality of vibration isolator members are disposed between the pins and the support wall and support the vibration isolator of the compressor, the refrigerator has a reduced number of parts and weight to be used. In the normal use state, since the movable range of the vibration isolator is restricted by a plurality of pins and support walls provided integrally with the floor plate, and the compressor is placed on the vibration isolator, It is possible to effectively exhibit vibration proof performance and sound proof performance.

  In addition, both the central pin and the surrounding support wall are used to prevent vibrations and shocks that occur when the refrigerator is transported and moved, as well as against moments and lateral loads applied to the compressor when the refrigerator is tilted sideways. Since the body is received by the support wall, the impact force and load can be distributed compared to the case where it is received only by the pin located at the center of the conventional body, and the support wall is a joint with the floor plate where stress is likely to concentrate. The design freedom is high and a large area can be secured, so that impact force and load can be dispersed.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the support wall is provided with a support portion that supports the support wall on the side opposite to the side facing the pin. Impact resistance can be improved.

  According to a fourth aspect of the present invention, in the invention of the third aspect, the support portion is taller than the pin, and further includes a notch that avoids interference with the leg. In the unlikely event that the pin breaks or the headed pin attached to the tip of the pin comes off, the legs of the compressor can be held by the support, preventing the compressor from becoming unstable. .

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the machine room is arranged on the upper part of the refrigerator body, so that a metal plate is placed on the floor plate of the conventional machine room. Compared with the case where the base which consists of this is used, a machine room can be reduced in weight by eliminating a metal plate in the floor board of a machine room, the stability of a refrigerator main body can be improved, and the vibration of a refrigerator main body can be reduced.

According to a sixth aspect of the present invention, in the invention according to any one of the first to fifth aspects, air that has been shrunk by foaming pressure at the time of urethane foaming is communicated by providing a communication hole in the support wall. At the same time, the heat insulating material is filled into the bearing wall and the filling rate of the heat insulating material in the inner space of the bearing wall is greatly improved. In the unlikely event that the pin breaks or the headed pin attached to the tip of the pin comes off, the legs of the compressor are held by the support wall, preventing the compressor from becoming unstable. be able to.

The invention according to claim 7 is the invention according to claim 6 , wherein the communication hole is provided in the upper surface portion of the support wall, so that the heat insulating material is filled up to the upper surface portion located at the tip of the support wall. Therefore, the rigidity of the bearing wall is increased, and even if the pin is broken or the headed pin attached to the tip of the pin is removed, the compressor leg is held by the bearing wall, and the compressor is It is possible to prevent instability.

The invention according to claim 8 is the heat insulating material according to claim 6 or 7 , wherein the diameter of the communication hole is 0.5 mm or more and 3.0 mm or less. Therefore, the support wall has high rigidity, suppresses vibration propagation from the compressor, and prevents noise in the machine room.

The invention according to claim 9 is the invention according to any one of claims 1 to 8 , wherein the R portion is provided on the cross-section of the root portion of the pin, so that the pin is simply processed. Since the rigidity of the pin can be increased, the vibration isolator also receives the load against the horizontal load of the compressor due to transportation of the refrigerator, etc., but it can withstand these loads and prevent breakage such as breakage of the pin part. It is possible to suppress pipe breakage and noise vibration phenomenon due to the displacement of.

A tenth aspect of the present invention is the invention according to any one of the first to ninth aspects, wherein the rigidity of the pin is increased by providing a convex portion at a portion corresponding to the back surface of the pin of the floor board. Therefore, the vibration isolator also receives the load against the horizontal load of the compressor due to transportation of the refrigerator, etc., but it can withstand these loads and prevent breakage such as pin breakage, and damage to the piping due to displacement of the compressor And noise vibration phenomenon can be suppressed.

  Furthermore, since the substantial length of the pin is increased, the rigidity of the pin can be further increased by extending the length of the headed pin and tightening the headed pin to the convex portion.

According to an eleventh aspect of the present invention, in the invention according to any one of the first to tenth aspects, the support member is embedded from the back surface projected by the pin of the floor board toward the pin. The vibration isolator also receives the load against the horizontal load of the compressor due to transportation of the refrigerator, etc., but it can withstand these loads and prevent breakage such as breakage of the pin part. Pipe breakage and noise vibration due to machine displacement can be suppressed.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of 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 embodiments described above, and detailed descriptions thereof will be 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 having a double-folded door at an upper portion, and in a heat insulating box body 101 that separates an internal space and an external space of the refrigerator 100 in a heat insulating state. A storage compartment divided into a plurality of compartments is provided.

  The storage compartment divided into a plurality of refrigerators 100 includes a refrigeration compartment 102, an ice making compartment 105, a changeover compartment 106, a vegetable compartment 103, a freezer compartment 104, and the like that can change the temperature inside the refrigerator. Called.

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

  The ice making room 105, the switching room 106, the vegetable room 103, and the freezing room 104 are each provided with a drawer heat insulating door 108, which seals the storage room so that there is no leakage of cold air.

  The heat insulating box 101 is a rectangular parallelepiped box that is formed by filling a heat insulating material such as hard foam urethane between a metal outer box and a resin inner box. The heat insulating box 101 has a function of blocking heat that tends to flow into the heat insulating box 101 from the outside atmosphere (air).

  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, it is possible to maintain the freshness of leafy vegetables for a long time, so that it becomes low temperature.

  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 ° C. or −25 ° C., for example, 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 the ice is 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 perspective view showing the refrigerator according to the first embodiment of the present invention from the back side.

  FIG. 3 is a perspective view showing the inside of the machine room of the refrigerator according to Embodiment 1 of the present invention.

  FIG. 4 is an exploded perspective view showing an attachment mode of the refrigerator compressor according to Embodiment 1 of the present invention.

  As shown in FIG. 2, a concave portion 113 is formed on the top surface portion of the refrigerator 100 so as to have a stepped downward shape toward the back surface of the refrigerator 100, and a machine room 201 is formed in the concave portion 113. ing. Normally, the machine room 201 is covered with a cover 202 to prevent noise and protect parts.

  As shown in FIGS. 3 and 4, the refrigerator 100 includes a compressor 203, a floor plate 204, a vibration isolator 205, and a headed pin 206 inside the machine room 201.

  The machine room 201 is a space in which components such as the compressor 203 and the fan 211 for cooling the compressor 203 are mainly housed on the high pressure side of the cooling cycle. The machine room 201 is formed in a state of biting into the uppermost rear region of the outer portion of the heat insulating box 101.

  Here, the aspect in which the machine room 201 is arranged at the uppermost rear of the refrigerator 100 is compared with the refrigerator in which the compressor 203 is arranged in the rearmost region of the storage room at the lowermost part of the heat insulating box 101, which has been generally used conventionally. Since the capacity of the lowermost storage room such as the vegetable room 103 can be remarkably improved and a dead space that is difficult to reach at the top of the refrigerator room 102 can be used as the machine room 201, the actual storage of the refrigerator 100 The volume can be improved.

  The compressor 203 is one of the components that form a cooling cycle that is connected in a ring shape with piping parts and encloses refrigerant or refrigeration oil inside, and compresses the refrigerant. R600a, which is a natural refrigerant, is used as a non-compliant refrigerant, and mineral oil is used as a refrigerating machine oil, for example. The chlorofluorocarbon piping parts are connected by providing a flexible portion so as not to directly receive the vibration of the compressor 203. The compressor 203 uses a type that is controlled at a variable speed by a reciprocating inverter, and the moment due to the reciprocating compression vibration is generally larger than that of other compression systems, and it is necessary to enhance the vibration isolation.

  Further, four legs 231 (one of which is not shown) are provided at the lower portion of the compressor 203 so as to protrude outward. The leg body 231 is a member for mounting the compressor 203 in the machine chamber 201, and has a hole-like engaging portion 232 that engages with a pin 243 described later at the tip. The leg body 231 has a shape in which the tip of the leg body 231 is positioned above the bottom surface of the compressor 203. This is because the compressor 203 is attached to the inside of the machine room 201 in a state as low as possible. This makes it possible to suppress the height of the machine room 201 and to widen the accommodation space inside the heat insulating box 101. It becomes. Furthermore, since the center of gravity of the compressor 203 is closer to the floor plate 204 described later, the distance between the vibration isolator 205 (including the pin 243 and the bearing wall 244) and the center of gravity of the compressor 203 is reduced, so that the compressor 203 It is possible to reduce the moment generated when the swaying.

  The floor board 204 is a resin member in which a back wall 241 is integrally provided on the back side and side walls 242 are integrally provided on both sides, and covers the entire recess 113. The floor plate 204 surrounds the machine room 201 together with the back wall 241 and the side wall 242, and is integrally provided with a pin 243 and a support wall 244. Specifically, the floor board 204 is polypropylene (PP).

  The support wall 244 is a cylindrical member that is integrally provided so as to protrude upward from the floor plate 204, and is provided at four locations on the upper surface of the floor plate 204. The support wall 244 includes a support portion 245 on the side opposite to the side facing the pin 243. That is, the support wall 244 includes a support portion 245 on the outer surface side of the support wall 244.

  The pins 243 are cylindrical members that are integrally projected on the upper surface of the floor plate 204 inside the support wall 244 at a predetermined distance from the support wall 244, and are spaced at four locations on the upper surface of the floor plate 204. Is provided. The pin 243 is inserted into the engaging portion 232 at the tip of the leg 231 provided in the compressor 203, and has a function of regulating the movable range of the compressor 203 in the horizontal direction (direction parallel to the floor plate 204). Yes.

  The support portion 245 is a rectangular plate-like member (rib), and is integrally attached to the outer peripheral surface of the support wall 244 along the vertical direction, and outward in the radial direction of the upper surface of the floor plate 204 and the support wall 244. Connected together. The support portions 245 are provided on all four support walls 244 and all extend toward the back surface of the refrigerator 100. When the refrigerator 100 is brought down for transportation by the support portion 245 of the aspect, usually, since the back surface of the refrigerator 100 is turned down, the support wall against the impact received from the compressor 203 when the refrigerator 100 is pushed down in this direction. The strength of 244 can be increased, and the shape around the support wall 244 can be simplified to improve the formability and weight of the floor plate 204.

  In addition, as a means for increasing the strength of the support wall 244 against the impact received from the compressor 203, the thickness of the support wall 244 is not limited to the support portion 245 which is the rectangular plate-shaped member (rib) described above. It is also possible simply by increasing.

  In addition, since the pin 243, the support wall 244, and the vibration isolator 205 are a cylinder or a cylindrical shape whose contact surfaces are curved surfaces, high holding durability can be ensured regardless of the direction of the external force.

  The floor plate 204, the pin 243, the support wall 244, and the support portion 245 are preferably integrally formed of resin. This is because the mounting strength of the pins 243 and the support walls 244 can be increased, and the number of parts can be reduced, and the manufacturing process can be simplified. Further, as the molding method of the floor plate 204, the pin 243, the support wall 244, and the support portion 245, an existing molding method such as vacuum molding or injection molding can be adopted.

  The vibration isolator 205 is a member for attenuating the vibration generated from the compressor 203 in the operating state, making it difficult for the refrigerator 100 to transmit the vibration of the compressor 203, and preventing the generation of sound associated therewith. In the case of this form, cylindrical rubber is employed. The vibration isolator 205 is interposed between the compressor 203 and the floor plate 204, and supports the leg body 231 of the compressor 203 from below. Further, the vibration isolator 205 has a cylindrical shape and is disposed in a state where the pin 243 is inserted, and therefore does not move even when the vibration of the compressor 203 is received. Further, the outer peripheral surface of the vibration isolator 205 is arranged in a state surrounded by the support wall 244. That is, a plurality of vibration isolator 205 is disposed inside the support wall 244 to support the vibration of the compressor 203, and the support wall 244 is opposed to the outer surface of the vibration isolator 205.

  The headed pin 206 is a member attached to the tip of the pin 243, and has a brim wider than the hole-shaped engaging portion 232 that prevents the leg 231 inserted through the pin 243 from coming out of the pin 243.

  In a normal use state of the refrigerator 100 having the above-described configuration, vibration generated by the operation of the compressor 203 is attenuated by the vibration isolator 205, so that the entire vibration of the refrigerator 100 is within an allowable range. In addition, the sound generated by the vibration is also in the allowable range. Due to the vibration of the compressor 203, the compressor 203 itself tries to slide with respect to the floor plate 204. However, the bulging protrusion on the upper surface of the vibration isolator 205 is engaged with the hole-shaped engaging portion 232 at the tip of the leg 231, and the vibration isolator 205 and the pin 243 are engaged with each other. Since 243 indirectly regulates the movable range of the compressor 203, the compressor 203 does not fall from the vibration isolator 205 or move around the floor plate 204 together with the vibration isolator 205. Further, the pin 243 can withstand the impact force generated by the shearing movement of the compressor 203, and the pin 243 continues to receive the impact force for a long period of time. Since the body 205 and the support wall 244 are also distributed and received, it is possible to sufficiently resist the impact force over a long period of time.

  Further, the impact force from the compressor 203 that is generated when the refrigerator 100 is tilted is transmitted from the engaging portion 232 to the upper portion of the pin 243, and the pin 243 tries to bend, but the deflection of the pin 243 is the vibration isolator 205. Since the support wall 244 supports the pin 243, the pin 243 does not bend greatly. Furthermore, since the impact force received by the pin 243 is dispersed and transmitted to the support wall 244 while being attenuated by the vibration isolator 205, the impact force is supported not only by the pin 243 but also by the support wall 244. It is possible to sufficiently cope with the sudden impact force.

  In the present embodiment, there is no problem even if the refrigerant is R134a, which is another refrigerant. However, for example, if a non-azeotropic refrigerant mixture is used, the composition component changes and the physical properties of the refrigerant change even if the gas leak due to pipe damage is small. Therefore, the effect of preventing gas leakage is great.

  The compressor constituting the refrigeration cycle is relatively heavy in both the reciprocating compressor and the rotary type as well as the scroll type, so long as it is a source of vibration as long as it is a source of vibration. It has the effect of. The same applies to expanders used in other refrigeration cycles such as the Stirling cycle.

  In addition, although the leg part of the compressor 203 is supported by four, it is possible to perform the function with at least three or more leg parts.

  Note that the larger the area of the support wall 244 that receives the vibration isolator 205, the more the load and impact force can be dispersed. However, since the lower part of the compressor 203 forms a cooling air passage by the compressor 203 and the fan 211 of the discharge pipe, a plurality of support walls 244 are independent of each other so that the air passage is not obstructed. It is designed not to be blocked by the bearing wall 244. Thereby, a sufficient air path is ensured, and the lower part of the compressor 203 and the discharge pipe can be air-cooled. In particular, the lower part of the compressor 203 retains and retains refrigeration oil, and preventing the rise of the refrigeration oil temperature is important for ensuring the reliability of the refrigeration cycle.

  The same effect can be obtained even if the layout of each room such as a refrigerator room or a freezer room is another combination. For example, the freezer compartment may be at the bottom and a vegetable room may be provided above the freezer compartment, or a layout in which the switching room is used as a freezer compartment, and similar effects can be obtained.

  Since the machine room 201 is arranged at the upper part of the refrigerator main body, the metal plate is eliminated from the floor plate 204 of the machine room 201 as compared with the case where a base made of a metal plate is used as the floor plate of the conventional machine room. Thus, the machine room 201 can be reduced in weight, so that the stability of the refrigerator body can be improved and the vibration of the refrigerator body can be reduced.

(Embodiment 2)
FIG. 5 is an exploded perspective view showing an attachment mode of the refrigerator compressor according to Embodiment 2 of the present invention.

  As shown in FIG. 5, a concave portion 113 is formed on the top surface portion of the refrigerator 100 so as to have a downward step shape toward the back surface of the refrigerator 100, and a machine room 201 is formed in the concave portion 113. ing. Normally, the machine room 201 is covered with a cover 202 to prevent noise and protect parts. Inside the machine room 201, a compressor 203, a floor board 204, and a vibration isolator 205 are provided.

  The machine room 201 is a space in which components such as the compressor 203 and the fan 211 for cooling the compressor 203 are mainly housed on the high pressure side of the cooling cycle. The machine room 201 is formed so as to bite into the uppermost rear region outside the heat insulating box 101.

  Here, the aspect in which the machine room 201 is arranged at the uppermost rear of the refrigerator 100 is compared with the refrigerator in which the compressor 203 is arranged in the rearmost region of the storage room at the lowermost part of the heat insulating box 101, which has been generally used conventionally. Since the capacity of the lowermost storage room such as the vegetable room 103 can be remarkably improved and a dead space that is difficult to reach at the top of the refrigerator room 102 can be used as the machine room 201, the actual storage of the refrigerator 100 The volume can be improved.

  The compressor 203 is one of the components that form a cooling cycle that is connected in a ring shape with piping parts and encloses refrigerant or refrigeration oil inside, and compresses the refrigerant. The piping parts are connected by providing a flexible portion so as not to receive vibration of the compressor 203 directly. Further, four legs 231 (one of which is not shown) are provided at the lower portion of the compressor 203 so as to protrude outward.

  The leg body 231 is a member for mounting the compressor 203 in the machine room 201, and has a hole-like engaging portion 232 that engages with a vibration isolator 205 described later at the tip. The leg body 231 has a shape in which the tip of the leg body 231 is positioned above the bottom surface of the compressor 203. This is because the compressor 203 is attached to the inside of the machine room 201 in a state as low as possible. This makes it possible to suppress the height of the machine room 201 and to widen the accommodation space inside the heat insulating box 101. It becomes. Further, since the leg body 231 is bent three-dimensionally, it is possible to increase the rigidity of the leg body 231 and suppress the amplitude of the compressor.

  The floor board 204 is a resin member in which a back wall 241 is integrally provided on the back side and side walls 242 are integrally provided on both sides, and covers the entire recess 113. The floor plate 204 surrounds the machine room 201 together with the back wall 241 and the side wall 242 and includes a support wall 244 formed integrally.

  The support wall 244 is a cylindrical member provided so as to protrude upward from the floor plate 204, and is provided at four locations on the upper surface of the floor plate 204. The support wall 244 includes a support portion 245 on the outer surface side of the support wall 244.

  The support portion 245 is a rectangular plate-like member (rib), and is integrally attached to the outer peripheral surface of the support wall 244 along the vertical direction, and outward in the radial direction of the upper surface of the floor plate 204 and the support wall 244. Connected together. The support portions 245 are provided on all four support walls 244 and all extend toward the back surface of the refrigerator 100. When the refrigerator 100 is brought down for transportation by the support portion 245 of the aspect, usually, since the back surface of the refrigerator 100 is turned down, the support wall against the impact received from the compressor 203 when the refrigerator 100 is pushed down in this direction. The strength of 244 can be increased, and the shape around the support wall 244 can be simplified to improve the formability and weight of the floor plate 204.

  The floor plate 204, the support wall 244, and the support portion 245 are preferably integrally formed of resin, which contributes to a reduction in the number of components and can simplify the manufacturing process. Further, as the molding method of the floor plate 204, the support wall 244, and the support portion 245, an existing molding method such as vacuum molding or injection molding can be adopted.

  The vibration isolator 205 is a member for attenuating vibration generated from the compressor 203 in a movable state, making it difficult to transmit the vibration of the compressor 203 to the refrigerator 100, and preventing generation of sound associated therewith. In the case of this form, cylindrical rubber is employed, and since it is not a hollow structure, it is possible to improve damping characteristics and improve vibration proofing. The vibration isolator 205 is interposed between the compressor 203 and the floor plate 204, and the tip protrusion of the vibration isolator 205 is fitted and held in the hole-like engagement portion 232 of the leg 231 of the compressor 203. ing. In addition, since the vibration isolator 205 has a cylindrical shape and is disposed in a state where the outer peripheral surface is surrounded by the support wall 244, the vibration isolator 205 does not move in the horizontal direction even when the compressor 203 receives vibration. That is, a plurality of vibration isolator 205 is disposed inside the support wall 244 to support the vibration of the compressor 203, and the support wall 244 is opposed to the outer surface of the vibration isolator 205.

  In addition, the vertical displacement of the compressor 203 is caused by a predetermined displacement because the cover 202 covering the machine room 201 is provided in the vicinity with a vibration isolating material attached to a position facing the upper side of the compressor 203. It is possible to prevent fluctuations greater than the amount.

  If the cover is firmly fixed, the propagation of sound and vibration is large, so it is desirable to suppress the displacement through a vibration isolator.

  In a normal use state of the refrigerator 100 having the above-described configuration, vibration generated by the operation of the compressor 203 is attenuated by the vibration isolator 205, so that the entire vibration of the refrigerator 100 is within an allowable range. In addition, the sound generated by the vibration is also in the allowable range.

  In addition, even if a movement of the compressor 203 itself due to vibration of the compressor 203 tries to move with respect to the floor plate 204 or a load or impact force of the compressor 203 generated when the refrigerator 100 is brought down such as during transportation, Since the vibration isolator 205 indirectly restricts the movable range of the compressor 203 by the support wall 244, the compressor 203 is not greatly displaced and does not move around the floor plate 204 together with the vibration isolator 205.

  Further, the impact force generated by the shearing movement of the compressor 203 is not received only by a thin pin or the like, but is received in a distributed manner by the wide outer surface area of the vibration isolator 205 and the wide receiving area of the support wall 244. Therefore, it is possible to sufficiently resist long-term vibration, load, and sudden impact force.

  In this embodiment, the vertical displacement of the compressor 203 is regulated by the cover 202, but the same effect can be obtained by providing a regulating member 246 that regulates the vertical displacement of the leg 231 of the compressor 203. be able to. Further, the restricting member 246 is configured by integrally molding a resin member in the direction from the back wall 241 to the compressor 203 side, thereby suppressing an increase in the number of parts.

(Embodiment 3)
Next, another aspect of the support part 245 will be described. In addition, since it is the same as that of the said Embodiment 1 and Embodiment 2 except the support part 245, the description is abbreviate | omitted.

  FIG. 6 is a main part perspective view showing the inside of the machine room of the refrigerator in the third embodiment of the present invention.

  FIG. 7 is an exploded perspective view showing an attachment mode of the refrigerator compressor in Embodiment 3 of the present invention.

  FIG. 8 is a cross-sectional view showing the vicinity of the support portion in a state where the refrigerator compressor according to Embodiment 3 of the present invention is attached.

  FIG. 9A is a cross-sectional view showing the vicinity of another supporting portion in a state in which the compressor of the refrigerator in Embodiment 3 of the present invention is attached, and FIG. 9B is in Embodiment 3 of the present invention. It is sectional drawing which shows the vicinity of the other support part in the state which attached the compressor of the refrigerator.

  In particular, as shown in FIG. 8, the support portion 245 includes a rectangular box-shaped outer frame portion 245 a and a connection portion 245 b that connects the upper portion of the outer frame and the upper portion of the support wall 244 with a gentle curve. .

  The outer frame portion 245a is a member that is disposed so as to surround the outside of the support wall 244 with a predetermined distance therebetween, and is integrally protruded from the floor plate 204. The height of the outer frame portion 245a is set higher than the pin 243. A portion of the compressor 203 through which the leg 231 passes is provided with a notch 245c.

  As a result, even if the pin 243 is broken or the headed pin 206 attached to the tip of the pin 243 is removed, the leg 231 of the compressor 203 is held by the support portion 245 and the compressor is displaced. Can be prevented from becoming unstable.

  The connection portion 245b is a portion that integrally connects the upper portion of the support wall 244 and the upper portion of the outer frame portion 245a.

  With the above configuration, a space is formed between the support wall 244 and the support portion 245.

  The support wall 244 is firmly supported from the entire outer periphery by the support portion 245 of the aspect. Therefore, the compressor 203 is not only tilted with the back surface of the refrigerator 100 down but also tilted in any direction. The strength of the bearing wall 244 can be increased with respect to the impact force received from the arm.

  The space provided between the support wall 244 and the support portion 245 is for weight reduction and improvement of resin flow moldability, and does not exclude a solid structure having no space.

  Although the pin 243, the support wall 244, and the vibration isolator 205 are damped if they are always in close contact with each other, the vibration is slightly propagated. Therefore, as shown in FIGS. It is desirable to provide a predetermined clearance between the inner surface of the vibration isolator 205 and between the outer surface of the vibration isolator 205 and the support wall 244.

  When the compressor 203 is placed on the anti-vibration body 205, the anti-vibration body 205 swells and holds in a drum shape. Therefore, it is necessary to provide a predetermined clearance including this deflection amount. As shown in FIG. 9A, the clearance can be obtained by providing a taper portion on the pin 243 and the support wall 244 so that a larger clearance is provided in the upper portion than in the lower portion. According to this, since the vibration isolator 205 can be positioned by its own weight simply by placing the vibration isolator 205, the installation state of the vibration isolator 205 can be easily maintained in a good state.

  As shown in FIG. 9B, the means for taking the clearance may be a protrusion provided on the lower part of the pin 243 and the support wall 244.

  The means for taking the clearance may be a combination in which a convex portion is provided on the lower portion of the pin 243 and a tapered portion is provided on the support wall 244, or a tapered portion is provided on the pin 243 and the lower portion of the supporting wall 244 is provided. It is good also as a combination which provides a convex part.

  In this embodiment, the means for taking the clearance is provided with a tapered portion on the pin 243 and the supporting wall 244 or a convex portion on the lower portion of the pin 243 and the supporting wall 244. You may provide a taper part in itself.

  In addition, although the said embodiment demonstrated the case where the machine room 201 was arrange | positioned at the upper back of the refrigerator 100, this invention is not limited to this. For example, the machine room 201 is not limited to the rear in the upper part of the refrigerator 100, and may be installed in any place on the top surface, for example. Moreover, the thing arrange | positioned in the lower back and center back of the refrigerator 100 may be sufficient.

  Further, the shape of the vibration isolator 205, the pin 243, and the support wall 244 can be any shape as long as it does not deviate from the description of the scope of the claims, as well as a cylinder and a cylinder.

  Further, if the support wall 244 is configured to receive the outer surface of the vibration isolator 205, the vibration isolator 205 is not a single continuous surface but a plurality of support walls (that is, the support wall is provided intermittently). The structure which hold | maintains may be sufficient.

(Embodiment 4)
Next, the pin 443 and the support wall 444, which are different embodiments of the pin 243 and the support wall 244, will be described. In addition, since it is the same as Embodiment 1 to Embodiment 3 mentioned above except the pin 443 and the support wall 444, the description is abbreviate | omitted.

  FIG. 10 is a cross-sectional perspective view of the main part showing the inside of the machine room of the refrigerator according to Embodiment 4 of the present invention.

  FIG. 11: is a principal part perspective view of the floor board in which the compressor of the refrigerator in Embodiment 4 of this invention is installed.

  FIG. 12 is an enlarged perspective view of a main part of the floor board on which the refrigerator compressor according to Embodiment 4 of the present invention is installed.

  As shown in FIGS. 10 to 12, a communication hole 460 that is a minute circular hole is provided on the upper surface of the support wall 444, and the communication hole 460 communicates from the front side to the back side of the floor plate 404. Yes. In the present embodiment, the diameter of the communication hole 460 is 1.0 mm.

  By the way, in the foaming process of the refrigerator, a heat insulating material 452 such as hard foam urethane is filled in the internal space between the resin inner box 451 and the metal outer box 450. The heat insulating material 452 is filled in the internal space of the support wall 444 from the back surface of the floor plate 404 for the purpose of ensuring the heat insulating performance of the refrigerator and improving the strength of the entire refrigerator. More specifically, the heat insulating material 452 reaches the bottom surface portion of the floor plate 404 and then enters the internal space of the support wall 444. At this time, the air contracted by the foaming pressure at the time of urethane foaming is discharged to the outside from the communication hole 460 communicating with the outside, and at the same time, the heat insulating material 452 is filled into the support wall 444. Thus, the communication hole 460 is provided in the support wall 444 as an air vent hole for improving the fluidity of the heat insulating material 452. Here, two communication holes 460 are provided for one bearing wall 444.

  In the present embodiment, the communication hole 460 has a diameter of 1.0 mm, but may be 0.5 mm or more and 3.0 mm or less for the following reason.

  Specifically, when the diameter of the communication hole 460 is smaller than 0.5 mm, the flow resistance increases, so the time until the compressed air staying inside the support wall 444 is completely discharged to the outside is increased. In short, since the heat insulating material 452 is completely solidified in the meantime, an air cavity is formed inside the support wall 444. As a result, there is a high possibility that the rigidity of the support wall 444 is lowered.

  On the other hand, if it is larger than 3.0 mm, the compressed air inside the support wall 444 is released to the outside, and at the same time, the heat insulating material 452 is also released to the outside from the communication hole 460 having a reduced flow resistance. As a result, since the urethane heat insulating material 452 is exposed to the surface of the refrigerator, there is a problem that the number of steps for removing these heat insulating materials 452 increases. Further, since the amount of urethane used is greatly reduced, the filling rate of the heat insulating material inside the refrigerator is lowered, and thus the heat insulation performance of the refrigerator itself is remarkably lowered.

  Therefore, the diameter of the communication hole 460 is preferably 0.5 mm or greater and 3.0 mm or less.

  Further, the support wall 444 is formed of, for example, a polypropylene material, and the inside of the support wall 444 has a hollow shape, but when the space is filled with urethane heat insulating material 452, for example, the support wall 444 is formed. Compared to the case where the whole (including the internal space) is molded from resin, urethane has a lower specific gravity than polypropylene. Therefore, if the heat insulation material of urethane is filled inside the support wall, the weight is reduced. As a result, the stability of the refrigerator body can be improved. Furthermore, since the center of gravity of the refrigerator body is relatively low, vibration of the entire refrigerator due to the compressor can be reduced.

  When there is no communication hole, air stays inside the support wall 444 (air accumulation occurs), and it becomes difficult for the heat insulating material to be filled in the upper surface portion of the support wall 444.

  However, by providing the communication hole 460 in the support wall 444 as in the present embodiment, the air staying inside the support wall 444 is reduced compared to the case where there is no communication hole, and the support wall 444 Since the filling rate of the heat insulating material occupying the internal space is greatly improved, the rigidity of the support wall is increased, and even if the pin is broken or the headed pin attached to the tip of the pin is removed, it is compressed The legs of the machine are held by the bearing walls, and the compressor can be prevented from becoming unstable.

  Further, since the communication hole 460 is provided on the upper surface portion of the support wall 444, the internal pressure of the support wall is higher than the external pressure of the communication hole 460, so that a differential pressure is generated. The material is guided to the upper surface portion of the support wall 444 provided with the communication hole 460. As a result, since the heat insulating material is filled to the tip of the support wall 444 that is relatively difficult to be filled with the heat insulating material (that is, the flow resistance is high), the rigidity of the support wall 444 is increased, and the pin is broken by any chance. Even if the headed pin attached to the tip of the pin is detached, the leg of the compressor can be held by the support wall, and the compressor can be prevented from becoming unstable.

  In particular, since the communication hole 460 is provided near the corner (corner) of the upper surface of the support wall 444, it becomes possible to guide the urethane heat insulating material to the corner having high flow resistance. The rigidity of the bearing wall 444 is further increased. Even if the pin is broken or the headed pin attached to the tip of the pin is removed, the compressor leg is held by the bearing wall, and the compressor is unstable. Can be prevented.

  In this embodiment, two communication holes 460 are provided for one support wall 444. However, the number of communication holes 460 is not necessarily two. For example, one or three or more communication holes 460 are provided. May be provided.

  In the present embodiment, the communication hole 460 is a circular minute hole, but may be, for example, a rectangular hole.

  FIG. 13: is principal part sectional drawing of the pin periphery of the refrigerator in Embodiment 4 of this invention.

  As shown in FIG. 13, an R portion 470 is provided in the root cross-sectional portion of the pin 443 so as to increase the pin diameter toward the pin root.

  As a result, the vibration isolator 205 comes into contact with the support wall 444 against vibrations and shocks when the refrigerator is transported and moved, and for a moment or a lateral load applied to the compressor when the refrigerator is tilted sideways. Even in this case, since the rigidity of the support wall 444 is increased, it is possible to disperse the impact force and the load as compared with the case where the bearing wall 444 is received only by the pin located at the center portion. Therefore, breakage and bending of the refrigerator piping and pins can be prevented, and safety by suppressing noise and preventing leakage of refrigerant gas can be secured.

  Thus, by providing the R portion on the cross-section of the root portion of the pin 443, it is possible to increase the rigidity of the root portion of the pin portion where stress is most likely to be concentrated. Although the vibration isolator also receives loads, it can withstand these loads, can prevent breakage such as breakage of the pin portion, and can suppress pipe breakage and noise vibration phenomenon due to displacement of the compressor.

  The pin 443 also has a communication hole as in the case of the support wall, thereby increasing the pin strength, preventing noise and pipe breakage due to pin breakage, and realizing a highly safe refrigerator.

(Embodiment 5)
Next, the pin 543 and the floor board 504 which are another aspect of the pin 243 and the floor board 204 are demonstrated. In addition, since it is the same as Embodiment 1 to Embodiment 3 mentioned above except the pin 543 and the floor board 504, the description is abbreviate | omitted.

  FIG. 14 is a cross-sectional view of a main part around the pin of the refrigerator in the fifth embodiment of the present invention.

  As shown in FIG. 14, the convex part 590 integrated with the floor board 504 is provided so that the thickness of the back side of the pin 543 of the floor board 504 may be increased. As a result, the rigidity of the pin 543 main body is increased, the strength against the load applied to the pin 543 is ensured, and damage phenomena such as cracks and breakage can be prevented. Thereby, a highly safe refrigerator can be realized.

  As described above, since the protrusion 590 is provided in the portion corresponding to the back surface of the pin 543 of the floor plate 504, the rigidity of the pin can be increased, so that the vibration isolator against the horizontal load of the compressor due to transportation of the refrigerator or the like. However, it can withstand these loads, can prevent breakage of the pin portion and the like, and can suppress pipe breakage and noise vibration phenomenon due to displacement of the compressor.

  Furthermore, since the substantial length of the pin is increased, the rigidity of the pin can be further increased by extending the length of the headed pin and tightening the headed pin to the convex portion.

  In this embodiment, the convex portion 590 is provided integrally with the floor plate 504, but the convex portion may be provided separately from the floor plate 504.

(Embodiment 6)
Next, the pin 643 and the floor board 604 which are another aspect of the pin 243 and the floor board 204 are demonstrated. Since the parts other than the pin 643 and the floor board 604 are the same as those in the first to third embodiments, the description thereof is omitted.

  FIG. 15 is a cross-sectional view of a main part around the pin of the refrigerator in the sixth embodiment of the present invention.

  As shown in FIG. 15, a screw 680 as a support member is embedded and fixed from the back side of the pin 643 of the floor plate 604 toward the pin 643, and then the heat insulating material 452 is foamed. As a result, the rigidity of the main body of the pin 643 is further increased, the strength against the load applied to the pin 643 can be secured, and damage phenomena such as cracks and breakage can be prevented. Thereby, a highly safe refrigerator can be realized.

  As described above, since the support member is embedded from the back surface projected by the pin 643 of the floor plate 604 toward the pin 643, the rigidity of the pin can be further increased, so that the horizontal load of the compressor due to transportation of the refrigerator or the like can be increased. On the other hand, the vibration isolator also receives loads, but can withstand these loads, prevent breakage such as breakage of the pin portion, and suppress pipe breakage and noise vibration phenomenon due to compressor displacement.

  In the present embodiment, the screw 680 is used as the support member. However, a member other than a screw may be used as long as the member is a metal or other material and has high rigidity.

  The present invention can prevent vibrations and noises generated by the compressor during normal use, and when the refrigerator is subjected to various vibrations, loads and impacts during transportation and movement, and when the refrigerator is tilted sideways It is possible to hold the compressor sufficiently against the moment and lateral load applied to the compressor, and not only for refrigerators for home use but also commercial refrigerators and showcases, vending It can also be used for cooling equipment such as a machine.

Front view of the refrigerator in Embodiment 1 of the present invention The perspective view which shows the refrigerator in Embodiment 1 of this invention from a back surface The perspective view which shows the machine room interior of the refrigerator in Embodiment 1 of this invention The perspective view which decomposes | disassembles and shows the attachment aspect of the compressor of the refrigerator in Embodiment 1 of this invention. The perspective view which decomposes | disassembles and shows the attachment aspect of the compressor of the refrigerator in Embodiment 2 of this invention. The principal part perspective view which shows the machine interior of the refrigerator in Embodiment 3 of this invention The perspective view which decomposes | disassembles and shows the attachment aspect of the compressor of the refrigerator in Embodiment 3 of this invention. Sectional drawing which shows the vicinity of the support part of the state which attached the compressor of the refrigerator in Embodiment 3 of this invention. (A) Sectional drawing which shows the vicinity of the other support part of the state which attached the compressor of the refrigerator in Embodiment 3 of this invention (b) The state of the state which attached the compressor of refrigerator in Embodiment 3 of this invention Sectional view showing the vicinity of another support Main part sectional perspective view which shows the machine interior of the refrigerator in Embodiment 4 of this invention The principal part perspective view of the floor board in which the compressor of the refrigerator in Embodiment 4 of this invention is installed The principal part expansion perspective view of the floor board in which the compressor of the refrigerator in Embodiment 4 of this invention is installed Sectional drawing of the principal part around the pin of the refrigerator in Embodiment 4 of this invention Sectional drawing of the principal part around the pin of the refrigerator in Embodiment 5 of this invention Sectional drawing of the principal part around the pin of the refrigerator in Embodiment 6 of this invention The perspective view which decomposes | disassembles and shows the attachment aspect of the compressor of the conventional refrigerator

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Refrigerator 101 Heat insulation box 102 Refrigeration room 103 Vegetable room 104 Freezing room 105 Ice making room 106 Switching room 107 Heat insulation door 108 Drawout heat insulation door 113 Recessed part 201 Machine room 202 Cover 203 Compressor 204 Floor board 205 Vibration isolator 206 Pin 211 Fan 231 Leg 232 Engagement part 241 Back wall 242 Side wall 243 Pin 244 Bearing wall 245 Support part 245a Outer frame part 245b Connection part 245c Notch 404 Floor plate 443 Pin 444 Bearing wall 450 Outer box 451 Inner box 452 Thermal insulation 460 R part 504 Floor board 543 Pin 544 Bearing wall 590 Protruding part 604 Floor board 643 Pin 644 Bearing wall 680 Screw (supporting member)

Claims (11)

A heat insulating box made of an outer box, an inner box, a heat insulating material provided between the outer box and the inner box, a compressor constituting a cooling cycle for cooling the inside of the heat insulating box, and the heat insulating box A refrigerator comprising a machine room that houses the compressor in an outer shell and a resin floor board that constitutes a floor surface of the machine room, wherein a plurality of supports integrally projecting from the resin on the upper surface of the floor board A floor , and a plurality of vibration isolator members are disposed in an internal space surrounded by the support wall to support the vibration isolation of the compressor, the support wall is opposed to the outer surface of the vibration isolator, and the floor plate A refrigerator in which an internal space from the back surface to the support wall is foam-filled with the heat insulating material.   Provided with a plurality of pins integrally projecting on the upper surface of the floor plate inside the support wall at a predetermined distance from the support wall, and a plurality of vibration isolator is disposed between the pins and the support wall. The refrigerator according to claim 1, wherein the compressor is supported by vibration isolation.   The refrigerator according to claim 1, wherein the support wall includes a support portion that supports the support wall on a side opposite to the side facing the pin.   The refrigerator according to claim 3, wherein the support portion is taller than the pin, and further includes a notch that avoids interference with the leg.   The said machine room is a refrigerator as described in any one of Claim 1 to 4 arrange | positioned at the upper part of the refrigerator main body.   The refrigerator according to any one of claims 1 to 5, wherein a communication hole is provided in the support wall.   The refrigerator according to claim 6, wherein the communication hole is provided in an upper surface portion of the support wall.   The refrigerator according to claim 6 or 7, wherein a diameter of the communication hole is 0.1 mm or more and 3 mm or less.   The refrigerator as described in any one of Claim 1 to 8 which provided the R part in the base part cross section of the said pin.   The refrigerator as described in any one of Claim 1 to 9 which provided the convex part in the site | part corresponded to the back surface of the said pin of the said floor board.   The refrigerator according to any one of claims 1 to 10, wherein a support member is embedded from a back surface projected by the pin of the floor board toward the pin.