JP3824017B1 - refrigerator - Google Patents

Abstract

In a refrigerator in which a compressor is positioned above a drawer-type door, collision noise generated when an electric element and a compression element inside the compressor come into contact with an airtight container is reduced.
At least one of a plurality of storage compartment doors defined in a refrigerator main body 100 having an open front surface is a drawer-type door, and at least a contact portion of the drawer-type door with a heat insulating box. Part or the center of gravity of the drawer door is located below the compressor 110, and the drawer-type door is provided with a buffer mechanism that reduces the impact force when the door is closed. The force is relaxed and the frequency of occurrence of collision noise of parts inside the compressor is reduced.
[Selection] Figure 1

Description

  The present invention relates to a refrigerator in which a drawer-type storage chamber is provided in a lower part of a compressor.

  Conventional refrigerators generally have a machine room formed in the rear rear region of the storage room disposed at the bottom, and a compressor for a refrigeration cycle is accommodated in the machine room. In this case, the storage space of the lowermost storage room is invaded by the machine room and the storage volume is reduced, and the storage space has a complicated shape excluding the protruding part of the machine room and has good storage properties. It was not.

  For the purpose of solving such problems related to conventional storage properties, a recessed portion is provided so that the upper back of the uppermost storage chamber of the heat insulation box is lowered, and the compressor of the refrigeration cycle is provided in the recessed portion. There has been proposed a refrigerator that houses components on the high-pressure side such as (see, for example, Patent Document 1).

  FIG. 12 shows a longitudinal sectional view of a conventional refrigerator described in Patent Document 1. As shown in FIG.

  As shown in FIG. 12, the heat insulating box 1 includes a refrigerator compartment 2, a freezer compartment 3, and a vegetable compartment 4 in order from the top, and a refrigerator compartment rotary door 5 is provided at the front opening of the refrigerator compartment 2. . In addition, the freezer compartment 3 and the vegetable compartment 4 located in the lower part from the center of the heat insulating box 1 are a drawer type freezer compartment drawer door 6 and a vegetable compartment drawer door 7 that can be easily taken out in consideration of storability and usability. Is provided. A plurality of storage shelves 8 are provided in the refrigerator compartment 2, and storage containers 9 a and 9 b having an open top shape are attached to the freezer compartment 3 and the vegetable compartment 4. The storage containers 9a and 9b are supported on rails (not shown) in the front-rear direction so as to be movable in the front-rear direction by rollers.

  The recessed part 10 provided in the heat insulation box 1 is a place where the top back part over the outer box upper surface 11 and the outer box back surface 12 is depressed so that the uppermost back part of the refrigerator compartment 2 is lowered. The left and right sides of the recess 10 are closed by the left and right walls of the heat insulating box 1 and open upward and to the back. The open portion of the recess 10 includes an upper plate 13 and a back plate 14 that is substantially perpendicular to the upper plate 13. The concave cover 15 is covered. The recess cover 15 is detachably fixed to the heat insulating box 1 with screws or the like.

  The compressor 16 and the condenser 17, which are components of the refrigeration cycle, are arranged so as to be accommodated in the recess 10 together with the machine room fan 18, and are covered with a recess cover 15 including the upper plate 13 and the back plate 14. Yes.

Here, the compressor 16 generally used in a refrigerator has a configuration in which an electric element and a compression element integral with the electric element are elastically supported in a sealed container (not shown). That is, the electric element and the compression element can move within a predetermined range within the sealed container.
JP 2001-99552 A

  However, in the conventional configuration described above, the compressor 16 is disposed on the top surface of the heat insulating box 1 so that the drawer doors such as the freezer compartment drawer door 6 and the vegetable compartment drawer door 7 are all lower than the compressor 16. Will be located.

  For this reason, in particular, since the drawer-type door stores a large amount of stored items and becomes heavy, the impact force accompanying the closing of the door increases. Thus, when the door is closed in a state where the stored items are loaded on the pull-out door, the amplitude due to the vibration generated in the refrigerator body is amplified because the compressor 16 is positioned above the pull-out door. As a result, the electric element and the compression element inside the compressor 16 and the sealed container come into contact with each other, and there is a problem that a collision sound is generated.

  This invention solves the said conventional subject, and it aims at providing the refrigerator which reduced the occurrence frequency of the collision sound inside a compressor.

In order to solve the above-described conventional problems, a refrigerator according to the present invention includes a plurality of storage chambers that are partitioned in a vertical direction in a heat insulating box having a front surface opened, and a freezer disposed in a top surface portion of the heat insulating box. and cycle compressor been made to have a a door formed on a front surface of the storage compartment, said compressor are those electric element and the compression element is elastically fixed by vibration isolation member in a sealed container The storage chamber has a drawer door in a plurality of storage chambers excluding the uppermost storage chamber, and the width dimension in the left-right direction of the uppermost drawer door among the plurality of drawer doors is the heat insulating box For the pull-out door of the storage chamber below the storage chamber provided with the uppermost pull-out door, the self-closing function and deceleration when the door closes are performed. And a damper that reduces the impact force when closing the door Ete, those wherein the damper so as to act only during the self-closure function is operating to suppress an internal collision noise of the compressor.

  As a result, in a refrigerator in which the compressor is positioned above the door, even when the door is closed in a state where the stored items are loaded on the pull-out door, the impact generated in the refrigerator is reduced.

  Since the refrigerator of the present invention reduces the impact generated in the refrigerator when the drawer-type door is closed, it is possible to reduce the frequency of occurrence of collision noise inside the compressor and reduce the noise of the refrigerator. It can be reduced and the reliability can be improved.

The invention according to claim 1 is a plurality of storage chambers that are partitioned in the vertical direction in a heat insulation box having an open front surface, a compressor of a refrigeration cycle disposed on a top surface portion of the heat insulation box, It is one that chromatic and formed on the front surface of the storage compartment door, the compressor are those electric element and the compression element is elastically fixed by vibration isolation member in a sealed container, wherein the storage chamber is uppermost and it has a pull-out door storage compartment of a plurality of stages except the storage compartment of a width dimension in the left-right direction of the uppermost drawer-type door of the plurality of drawer type door than the width in the lateral direction of the heat insulation box For the pull-out door of the storage chamber below the storage chamber having the uppermost pull-out door, the self-closing function and the impact force when closing the door by reducing the speed when the door is closed A damper for relaxing the front of the damper It is intended to suppress the internal collision noise of the compressor so as to act only during the self-closure function is operating.

As a result, the impact generated in the refrigerator when the door is closed is alleviated, and in a refrigerator in which the compressor is positioned above the door, the door is opened with the stored items loaded on the pull-out door. Even when closed, it is possible to reduce the frequency of occurrence of collision noise inside the compressor.
In addition, because the compressor is farthest from the installation part with the floor of the refrigerator, the drawer located below the compressor is placed on the top surface of the heat insulating box where vibration is most easily amplified. By providing a shock-absorbing mechanism that acts only while the self-closing function is operating on the door, the impact that occurs in the refrigerator when the door is closed is mitigated. Occurrence frequency can be reduced.

Invention of Claim 2 is equipped with the fixing member with which the invention of Claim 1 was equipped with the fixing member with which the lowermost part of the said heat insulation box was equipped and which suppresses the movement with respect to an installation surface, and a refrigerator is with respect to a floor surface. Since it is fixedly installed without moving, the bottommost locking member of the refrigerator is the fixed end and the top is the free end, so when the center of gravity of the drawer door is located below the compressor, the heat insulation box Even in the case where the increase in the amplitude above becomes more prominent, the impact generated in the refrigerator when the door is closed is alleviated, and the frequency of occurrence of collision noise in the compressor can be reduced.

The invention according to claim 3 is the invention according to claim 1 or 2 , wherein a plurality of drawer doors located in the uppermost stage in the storage room having the drawer doors are provided in the left-right direction. is there.

  As a result, the uppermost pull-out door where the impact force when closing the door has the largest effect on the swinging of the compressor installation surface is at least the farthest from the lower installation surface of the refrigerator. By making it shorter than the full width in the left-right direction, it is possible to reduce the loading capacity of the stored items stored in the storage room, compared to a drawer-type storage room formed over the full width in the left-right direction of the refrigerator. The impact generated in the refrigerator when the door is closed is alleviated, and the occurrence frequency of collision noise inside the compressor can be reduced.

  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)
1 is a side sectional view of a refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a front view of the refrigerator according to Embodiment 1 of the present invention. FIG. 3 is a main part configuration diagram of the compressor according to Embodiment 1 of the present invention. FIG. 4 is a main part configuration diagram of the rail member according to the first embodiment of the present invention. FIG. 5 is a main part configuration diagram of the rail member according to the first embodiment of the present invention. 6 is a cross-sectional view taken along line AA in FIG. 5 according to Embodiment 1 of the present invention. FIG. 7 is a main part configuration diagram of the rail member according to the first embodiment of the present invention.

  In the figure, a compressor 110 is fixed to the refrigerator main body 100 via an anti-vibration rubber 102 at the upper rear of the refrigerator main body 100 made of a heat insulating box.

  Moreover, the leg 101 which is a fixing member which suppresses the movement with respect to the floor surface which is an installation surface of a refrigerator is provided in the lowest part of the front side of a refrigerator.

  The refrigerating room 104 is a storage room in a refrigerating temperature zone that is partitioned on the upper stage of the refrigerator main body 100, and a rotary door 104 a is formed on the front surface of the refrigerating room 104.

  The vegetable compartment 105 is a refrigeration temperature zone storage compartment defined in the middle of the refrigerator main body 100, and a drawer-type door 105 a is formed in front of the vegetable compartment 105.

  The freezer compartment 106 is a freezing temperature zone storage compartment defined in the lower stage of the refrigerator main body 100, and a drawer-type door 106 a is formed on the front surface of the freezer compartment 106.

  The ice making chamber 107 is a storage room in a freezing temperature zone formed in the middle of the refrigerator main body 100 and having a width dimension in the left-right direction smaller than the width dimension of the refrigerator main body 100, and is drawn out to the front of the ice making chamber 107. An expression door 107a is formed.

  The switching chamber 108 is a storage chamber that is formed in the middle stage of the refrigerator main body 100 and that can switch a wide temperature from a refrigeration temperature zone to a refrigeration temperature zone that has a width dimension in the left-right direction smaller than the width dimension of the refrigerator main body 100. A drawer-type door 108 a is formed on the front surface of the switching chamber 108.

  The ice making chamber 107 and the switching chamber 108 are arranged so as to form a buffer mechanism for devising the arrangement configuration of the drawer doors, and are located adjacent to the uppermost stage in the storage room having the drawer doors of the refrigerator. It is located in the place most distant from the leg 101 which is a fixing member with which the installation surface of the refrigerator main body was equipped. Thus, when the width dimension H1, H2 in the left-right direction of the drawer doors 107a, 108a located in the uppermost stage in the drawer door is made smaller than the width dimension H0 in the left-right direction of the box, the door is closed. It is a shock absorbing mechanism that reduces impact.

  The doors 104a, 105a, 106a, 107a, and 108a are generally in close contact with the peripheral edge of the front opening of the refrigerator main body 100 with elastic sealing materials 104b, 105b, 106b, 107b, and 108b such as gaskets that contain magnets. It is comprised so that a contact seal may be carried out in the form which carries out.

  The compressor 110 mainly includes a sealed container 111, an electric element 112, a compression element 113, and a vibration isolating member 114. The electric member 112 and the compression element 113 are integrally configured, and the vibration isolating member 114 is interposed therebetween. And elastically fixed in a sealed container.

  The rail member 120 is disposed to face both side surfaces of the door 105a and the door 106a, and mainly includes an operation rail 121, an intermediate rail 122, and a fixed rail 123. The operation rail 121 can move horizontally along with the door 105a and the door 106a. The intermediate rail 122 is a rail connecting the operating rail 121 and the fixed rail 123, and is connected to both the operating rail 121 and the fixed rail 123 so as to be horizontally movable. The fixed rail 123 is fixed to the refrigerator main body 100 so that the door 105a and the door 106a can be moved horizontally.

  The self-closing function unit 130 mainly includes a guide rail 131, an inclined member 132, a link mechanism 133, and an elastic body 134, and is installed in the vicinity of the rear of the fixed rail 123. The guide rail 131 is connected to a release end of a damper 140 that is a buffer mechanism that relieves an impact force when the door is closed, and is fixed to the fixed rail 123. Here, a groove 131a having an opening at the damper 140 side end is formed on the side wall of the guide rail 131, and a groove 131b having both ends closed is formed on the upper wall of the guide rail 131. Further, a groove 131c having an upper opening is formed near the end of the front side wall of the guide rail 131, and a groove 131d having both ends closed is formed on the lower wall of the guide rail 131.

  The inclined member 132 is rotatably connected to the end of the damper 140 at the first connecting portion 132a, and the first connecting portion 132a is guided by the groove 131a so as to be horizontally movable. Further, two protrusions 132b and 132c are formed on the upper portion of the inclined member 132. These two protrusions 132b and 132c protrude from the upper wall of the guide rail 131, and are fitted into the groove 131b to move in the horizontal direction. . Further, a second connecting portion 132d protruding downward is formed below the first connecting portion 132a, and the lower end of the second connecting portion 132d penetrates a groove 131d formed on the lower wall of the guide rail 131. ing.

  The link mechanism 133 is mainly configured by a plate 133a and a roller 133b, and the plate 133a is fixed downward with respect to the side wall of the operation rail 121. The roller 133b is a cylindrical body member rotatably disposed at the lower end of the plate 133a, and is positioned between the two protrusions 132b and 132c in the installed state.

  The elastic body 134 connects the outer rear end of the damper 140 and the lower end of the second connecting portion 132 d of the inclined member 132.

  The damper 140 is a rectilinear damper disposed at the rearmost part of each section and connected to the rear end of the guide rail 131, and mainly includes a damper main body 141 and an operation shaft 142.

  The damper main body 141 has a structure in which a piston is disposed in a cylindrical casing and filled with silicon oil 143, and its operation is switched in two stages with respect to such a load. Specifically, when a high load is generated as a load, the first operation increases the operation load of the damper 140, and when the load decreases, the second operation decreases the operation load of the damper 140 (see FIG. Not shown).

  The operating shaft 142 is a shaft connected to the piston of the damper main body 141, and the front end thereof is connected to the first connecting portion 132 a of the inclined member 132.

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

  First, the arrangement structure of the drawer doors is devised as a buffer mechanism, and the lateral dimensions of the drawer doors 107a and 108a located at least in the uppermost stage in the storage chamber provided with the drawer doors are the box body. Since the width dimension is smaller than the horizontal dimension of the refrigerator, the load of the storage items stored in the storage chambers of the drawer doors 107a and 108a is larger than that of the storage room having the drawer door formed over the entire width of the refrigerator in the horizontal direction. Since the amount can be greatly reduced, the impact force generated in the refrigerator when the door is closed is small. Thus, by devising the arrangement configuration of the drawer doors, the impact force is alleviated, and the frequency of occurrence of collision noise inside the compressor can be reduced.

  Next, in the drawer door provided with the damper 140 as a buffer mechanism, the fully closed doors 105a and 106a are gradually moved forward by being pulled by a human hand. At this time, the link mechanism 133 moves forward together with the doors 105a and 106a. As a result, while the roller 133b is in contact with the protrusion 132b, the operating shaft 142 connected to the first connecting portion 132a of the inclined member 132 moves forward, and the elastic body 134 connected to the second connecting portion 132d is also stretched. It is.

  When the doors 105a and 106a move further forward, the self-closing function unit 130 stops due to the action of the tilted inclined member 142.

  Next, when the fully opened doors 105a and 106a are gradually moved backward by being pushed by a human hand, the roller 133b comes into contact with the protrusion 132c, and the inclination of the inclined member 132 is released. Due to the elastic force, the link mechanism 133 moves backward together with the inclined member 132 connected to the operating shaft 142, so that the doors 105 a and 106 a perform a self-closing operation while being decelerated by the damper 140.

  Thereafter, the doors 105a and 106a having the deceleration effect are brought into a fully closed state by gently abutting against the refrigerator main body 100 while being decelerated.

  Like this Embodiment, it is the refrigerator which is suppressing the movement with respect to a floor surface by the leg 101 being provided in the lowest part of the front side of a refrigerator, Comprising: The compressor 110 is above the refrigerator main body 100. When arranged, the amplitude of the vibration caused by the impact generated when the doors 105a and 106a are closed is amplified as the distance from the leg 101 which is the fixed end increases, and is most amplified especially in the upper portion where the compressor 110 is located. And has a large amplitude.

  At least the pull-out doors 105a and 106a are in contact with the refrigerator main body 100 below the compressor 110 (for example, in this embodiment, the contact portions of the elastic seal members 105b and 106b of the pull-out doors). In the compressor 110, the hermetic container 111, the electric element 112, and the compression element 113 are elastically fixed by the amplified amplitude. In the case of the present embodiment, the doors 105a and 106a come into contact with the refrigerator main body 100 while decelerating and the impact is alleviated, so that the vibration generated in the refrigerator main body 100 is also reduced. The frequency of collisions occurring inside the compressor 110 is reduced.

  Furthermore, the damper 140 has a structure in which its operation is switched in two stages with respect to the load, and the doors 105a and 106a accelerated by a human hand are greatly decelerated by the first operation of the damper 140. Thereafter, the decelerated doors 105a and 106a are slowly closed by the second operation of the damper 140. Here, in the first operation, even if the viscosity of the silicone oil 143 decreases with a temperature change, the minimum necessary deceleration effect can be obtained when the load is large.

  That is, unlike the normal damper, the damper 140 according to the present embodiment can achieve the minimum deceleration effect even under the same conditions as compared with the case where the deceleration effect is significantly reduced as the viscosity of the silicone oil 143 decreases. When the ambient temperature is high and the viscosity of the silicone oil 143 is small, for example, when selling at a store where the power is not turned on, the minimum deceleration effect can be obtained, so that the doors 105a and 106a are slowed down while the doors 105a and 106a are decelerated. Since the impact is relieved by coming into contact with 100, vibration generated in the refrigerator main body 100 is also reduced, and the frequency of collision occurring inside the compressor 110 is reduced.

  As described above, the refrigerator according to the present embodiment includes the refrigerator compartment 105 and the freezer compartment 106 that are defined in the refrigerator main body 100 having an open front surface, the compressor 110 of the refrigeration cycle provided in the refrigerator main body 100, and vegetables. A drawer-type door 105a formed on the front surface of the chamber 105, a drawer-type door 106a formed on the front surface of the freezing chamber 106, a self-closing function unit 130 for self-closing the door 105a and the door 106a, and a self-closing function It is composed of the doors 105a and the dampers 140 that act on the doors 106a only while the section 130 is in operation, and the amplitude of vibration caused by the impact generated when the doors 105a and 106a are closed is amplified at the upper part where the compressor 110 is located. In addition, since the damper 140 is disposed on the door 105a and the door 106a located below the compressor 110, the impact is alleviated. Vibration is also reduced resulting in 100, it is possible to reduce the frequency of collisions that occur within the compressor 110.

  Further, for the drawer doors 107a and 108a located at the uppermost stage in the storage room provided with the drawer door, the damper 140 is not used as a buffer mechanism, and the width dimensions H1 and H2 in the left and right directions are the right and left sides of the box. Although the arrangement configuration smaller than the width dimension H0 in the direction is used, it is stored in the storage chambers of the drawer doors 107a and 108a as compared with the storage room provided with the drawer door formed over the entire width in the left-right direction of the refrigerator. Therefore, the impact force generated in the refrigerator when the door is closed is small, and the impact force associated with the closing of the door can be mitigated. Thus, by devising the arrangement configuration of the drawer doors by subdividing in the left-right direction, the impact force is alleviated, and the frequency of occurrence of collision noise inside the compressor can be reduced.

  At the same time, the subdivision of the drawer doors can also improve the usability of each pull-out storage room. Therefore, the storage room that requires a relatively small amount of storage can be placed on the upper side. In addition to the suppression, it is also an effective means that can improve the user-friendliness.

  Furthermore, the damper 140 performs a first operation that obtains a high deceleration effect when the closing speed of the door 105a and the door 106a is fast and a second operation that obtains a low deceleration effect when the closing speed of the door 105a and the door 106a is slow. Even if the refrigerator is stopped and the inside of the refrigerator is at room temperature, the impact generated in the refrigerator is alleviated when the door is closed. The frequency of occurrence of collision noise can be reduced.

  In addition, in this Embodiment, although the leg 101 which is a fixing member which suppresses the movement with respect to the floor surface which is an installation surface of a refrigerator shall be provided in the lowest part of the front side of a refrigerator, it is in the lowest part of a refrigerator. Fixing equipped with a lock device that suppresses movement to a caster that can move horizontally, and an adjuster function that can be adjusted in length so that the refrigerator main body 100 and the floor surface are fixed on the front side. It may be a member. That is, as a safety measure in the event of an earthquake or the like, in a refrigerator of the type in which the refrigerator is fixed to the floor and the lower surface side and there is no fixing member on the upper side, the amplitude due to the impact when closing the door as in the present invention is higher. In this type of refrigerator, if a shock absorber like the present invention is provided in this type of refrigerator, the generation of impact noise will be significant. There is an effect that it is reduced.

  In the present embodiment, the damper 140 is provided as one of the buffer mechanisms. However, for example, a protrusion is provided on the drawer rail so that the impact force can be reduced when the protrusion is overcome when the door is closed. A shock absorber can be relieved with a simple structure by providing a shock absorbing member on the rail in such a structure, and the shock absorbing member can be provided at a low price without adversely affecting the reliability of the shock absorbing member. By providing, the refrigerator which reduced generation | occurrence | production of the impact sound of a compressor can be provided.

  In this embodiment, the damper 140 is provided as one of the buffer mechanisms. However, for example, it may be a stopper that stops once at a position when the door is closed, and a large impact force is directly transmitted to the refrigerator main body. In addition, it is possible to provide a refrigerator that reduces the generation of impact noise of the compressor while avoiding the danger of pinching the user's fingers and hands by stopping at a certain position once. .

(Embodiment 2)
FIG. 8 is a sectional side view of a main part of the refrigerator in the second embodiment of the present invention. FIG. 9 is a front view of the refrigerator in the second embodiment of the present invention. FIG. 10 is a front view of the refrigerator body according to Embodiment 2 of the present invention. FIG. 11 is a side sectional view of the refrigerator according to the second embodiment of the present invention.

  In the figure, a compressor 110 is fixed to the refrigerator main body 300 via an anti-vibration rubber 102 at the upper rear of the refrigerator main body 300.

  Here, the refrigerator main body 300 is partitioned into a plurality of spaces, and a refrigerator room 310 is formed in the upper stage of the refrigerator main body 300, a vegetable room 320 is formed in the middle stage, and a freezer compartment 330 is formed in the middle and lower stages.

  In the refrigerator compartment 310, a rotary door device 311 and a drawer type door device 312 are formed. The door device 312 located at the top of the storage room with a drawer type door has an impact when the door is closed by making the width dimension h1 in the left-right direction smaller than the width dimension h0 in the left-right direction of the box. It has a function of a buffer mechanism that relaxes.

  The door device 312 is a vertically long drawer-type door, and mainly serves as a door 313, a container 314, rail members 130a and 130b, and a buffer mechanism. A damper 340 is provided.

  The door 313 is a plate having a vertically long shape, and a plurality of containers 314 for storing stored items are arranged on the inner surface thereof in the vertical direction. In this embodiment, the door 313 has a height of 900 mm and a width. It was 240 mm.

  In addition, a handle 315 is formed on the front surface of the door 313. In this embodiment, the handle 315 is formed on the side of the adjacent refrigerator compartment 310.

  Here, the door device 312 is provided with three rail members from the allowable load in the present embodiment.

  Two first rail members 130a are disposed at the upper part of the inner wall of the refrigerator compartment 310 and at the lower part of the refrigerator compartment 310 that forms a diagonal to the first rail member 130a. It is attached behind 130a. In addition, one second rail member 130b is disposed in the lower part of the inner wall of the refrigerator compartment 310, and the damper 340 is not attached.

  The vegetable compartment 320 is formed in the middle of the refrigerator main body 300, and a drawer-type door device 321 is formed.

  The freezer compartment 330 includes a first freezer compartment 331 formed in the lower part of the vegetable compartment 320 and a second freezer compartment 332 formed on the side of the vegetable compartment 320 and the first freezer compartment 331.

  In the second freezer compartment 332, a vertically long drawer-type door device 333 is formed. The door device 333 mainly includes a door 334, a container 335, a first rail member 130a, a second rail member 130b, The damper 340 is configured.

  The door 334 is a plate having a vertically long shape with the vertical direction as a longitudinal direction, and a plurality of containers 335 for storing stored items are arranged on the inner surface thereof in the vertical direction. In this embodiment, the size of the door 334 is large. The height was 900 mm in the vertical direction and the width in the horizontal direction was 240 mm.

  In addition, a handle 336 is formed on the front surface of the door 334. In this embodiment, the handle 336 is formed on the adjacent first freezer compartment 331 side.

  Here, the door device 333 is provided with four rail members in this embodiment.

  A total of two first rail members 130a are disposed on the inner wall upper portion of the second freezing chamber 332 and the inner wall lower portion that forms a diagonal with the upper portion.

  Two second rail members 130b are diagonally arranged on the inner wall of the second freezer compartment so as to face the first rail member 130a, respectively.

  The operation | movement and effect | action are demonstrated below about the door apparatus comprised as mentioned above.

  First, when closing the opened door device 312, the door 313 is pushed by a human hand and gradually moves backward, while decelerating from the position where the operating rail 131 and the mechanism part 134 a are connected. Performs a self-closing operation.

  Here, in view of the load resistance of the first rail member 130a and the second rail member 130b, in the present embodiment, a total of three first rail members 130a and second rails 130b are disposed, but this inner damper 340 is attached. Two first rail members 130a are provided, one on each of the upper part of the inner wall of the refrigerating chamber 310 and the lower portion of the refrigerating chamber 310 that forms a diagonal with the first rail member 130a. The imaginary line connecting the operation rails 131 and the gravity center position B are close to each other, and the door device 312 performs stable self-closing without a vertical / left-right shaking operation caused by the drag of the damper 340 at the time of self-closing while decelerating. In addition, it is hardly affected by the movement of the gravity center position B due to increase / decrease of the load load or bias of the load place, and a stable self-closing operation is possible. Thus, by installing the damper 340 so that the line connecting the damper 340 is near the center of gravity B of the door device, the self-closing operation can be further stabilized.

  In addition, in the actual use state, the door device 312 disposed on the upper portion of the refrigerator main body 300 operates near the lower portion of the handle 315. Even in this case, the rail member 130a is disposed near the operation portion. Therefore, it is difficult to be affected by the bias of the load when the door 313 is pushed by a human hand, and a stable self-closing operation is possible.

  Similarly, the door device 333 provided with a total of four rail members also performs stable self-closing without shaking motion in the vertical and horizontal directions. In addition, a stable self-closing operation is possible without being affected by load fluctuations or load biases with respect to the movement of the center of gravity position B due to increase / decrease of the load load or bias of the load location.

  In addition, in the actual use state, the door device 334 disposed at the lower portion of the refrigerator main body 300 operates near the upper portion of the handle 336. Even in this case, the rail member 130a is disposed near the operation portion. Therefore, it is difficult to be affected by the load bias when the door 334 is pushed by a human hand, and a stable self-closing operation is possible.

  As described above, the door devices 312 and 333 according to the present embodiment have the center of gravity of the drawer-type door devices 312 and 333 below the compressor 110, so that the amplitude due to the impact when the door is closed is upward. Because of the amplification, there is a concern about the generation of impact sound when the compressor is installed above, but since the damper 340 provides a deceleration effect, it is quietly brought into contact with the refrigerator main body 300 in a decelerated state. Closed.

  Furthermore, in this embodiment, in addition to the damper 340 as a buffer mechanism, the drawer-type door device 312 closes the door by making the width dimension h1 in the left-right direction smaller than the width dimension h0 in the left-right direction of the box. Since it has a function of a shock absorbing mechanism that relieves shock when hitting, even if the width dimension is small, the vertical dimension is relatively large, so even if the storage capacity of the storage room with a pull-out door increases, The impact force when closing the door is suppressed.

  As described above, according to the present embodiment, when the compressor 110 is disposed above the refrigerator main body 300, the amplitude of vibration caused by the impact generated when the door is closed is amplified at the upper portion where the compressor 110 is located. However, since the door devices 312 and 333 are brought into contact with the refrigerator main body 300 while decelerating and the impact is alleviated, vibration generated in the refrigerator main body 300 is also reduced, and the frequency of collisions occurring inside the compressor 110 is reduced. Will do.

  As described above, the refrigerator according to the present embodiment includes the damper 340 that acts on the door devices 312 and 333 only while the self-closing operation is performed. Even if the amplitude is amplified at the upper portion where the compressor 110 is located, the damper 340 is disposed in the door devices 312 and 333 whose center of gravity is located below the compressor 110, so the impact is mitigated. Vibration generated in the refrigerator main body 300 is also reduced, and the frequency of collisions occurring inside the compressor 110 can be reduced.

  As described above, the refrigerator according to the present invention can be applied to commercial refrigerators and vending machines because the door is configured with a damper to absorb the impact and suppress the impact sound of the compressor internal components.

Side sectional view of the refrigerator according to Embodiment 1 of the present invention. Front view of the refrigerator in Embodiment 1 of the present invention Main part block diagram of the compressor in Embodiment 1 of this invention The principal part block diagram of the rail member in Embodiment 1 of this invention The principal part block diagram of the rail member in Embodiment 1 of this invention Sectional view along the AA line in FIG. 5 of the refrigerator according to Embodiment 1 of the present invention. The principal part block diagram of the rail member in Embodiment 1 of this invention Main part sectional side view of the refrigerator in Embodiment 2 of this invention Front view of the refrigerator in Embodiment 2 of the present invention Front view of refrigerator main body in Embodiment 2 of the present invention Side sectional view of the refrigerator in the second embodiment of the present invention. Longitudinal sectional view of a refrigerator according to the prior art

Explanation of symbols

100, 300 Refrigerator body 104, 310 Refrigeration room 104a Door 105, 320 Vegetable room 105a Door 106, 330 Freezing room 106a Door 110 Compressor 130 Self-closing function part 140, 340 Damper 313 Door 334 Door

Claims (3)

A plurality of storage chambers defined in the vertical direction in the heat insulating box with the front opened, a compressor of a refrigeration cycle disposed on the top surface of the heat insulating box, and a door formed on the front of the storage chamber be one that have the bets, the compressor are those electric element and the compression element is elastically fixed by vibration isolation member in a sealed container, wherein the storage chamber is stored in a plurality of stages except the storage compartment of the uppermost The room has a pull-out door, and the width dimension in the left-right direction of the uppermost drawer-type door among the plurality of pull- out doors is smaller than the width dimension in the left-right direction of the heat insulation box, and For the drawer-type door of the storage room below the storage room with the drawer-type door, it has a self-closing function and a damper that reduces the impact force when the door is closed by decelerating when the door is closed, The self-closing function of the damper is operating Refrigerator suppress internal collision noise of the compressor so as to act only. The refrigerator according to claim 1 , further comprising a fixing member that is provided at a lowermost portion of the heat insulating box and suppresses movement relative to an installation surface. The refrigerator according to claim 1 or 2 , wherein a plurality of drawer doors located in the uppermost stage in the storage room having the drawer doors are provided in the left-right direction.

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