JP5607890B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator in which the temperature in one refrigerated storage room is made different between the upper and lower parts. In particular, the present invention relates to a refrigerator having a refrigerated storage room that is long in the vertical direction.

  A refrigerator having a refrigerated storage chamber is disclosed in, for example, Patent Document 1, but generally cool air is blown out from above the back duct into the refrigerated storage chamber and dropped downward to cool the refrigerated storage chamber. Is common.

JP 2001-153525 A

  And especially in a refrigerated storage room that is long in the vertical direction, the upper part and the lower part of the refrigerated storage room are made to have different temperature zones, and the upper part is suitable for wine, for example, about 10 ° C to 12 ° C. As the temperature zone, it is desired to provide a refrigerator that is extremely easy to use by setting the lower part to a normal refrigeration temperature zone of about 5 ° C., for example.

SUMMARY OF THE INVENTION Accordingly, the present invention aims to provide a refrigerator that is truly easy to use by cooling the first and second refrigerated storage rooms and making the temperature in the first refrigerated storage room different between the upper and lower parts. And

Therefore, the present invention includes at least a first refrigerated storage chamber formed in the heat insulation box and a second refrigeration storage chamber formed in the heat insulation box, and the temperature in the first refrigeration storage chamber is in the upper and lower parts. in a different refrigerators,
Top in communication with the rear air path above the rear air path and said first refrigerated storage compartment on the back side of the first refrigerated storage compartment in the air path forming member which is attached to the inside front of the heat insulation box Forming an air path,
Cool air generated by a cooler disposed in a cooling chamber communicating with the back air passage is raised in the back air passage by a blower ,
Cold air formed in the lower top air passage position of the rear air path at an intermediate position in the vertical of the first refrigerated storage compartment is lowered a portion of said cool air rose the rear air passage it returns to the cooler through the air outlet port and a return air path formed in the air passage forming body bottom is supplied to the first refrigerated storage compartment via the air outlet,
The remaining portion of the cold air that has risen in the rear air passage is guided to the top air passage, and then supplied to the second refrigerated storage chamber and returned to the cooler .

In the present invention, the cold air generated by the cooler disposed in the cooling chamber is secondly passed through the rear air passage formed on the back surface of the first refrigerated storage chamber and the top air passage formed above. Therefore, the space above the first refrigerated storage chamber can be indirectly cooled and the second refrigerated storage chamber can be cooled by the rear air passage and the top air passage. Moreover, the temperature of the space below the cold air outlet in the first refrigerated storage chamber can be made lower than the temperature of the space above the cold air outlet, and the temperature in the first refrigerated storage chamber Can be made different between above and below the cold air outlet, and a refrigerator that is truly easy to use can be provided. Therefore, for example, by setting the upper part as a temperature zone suitable for wine or the like and the lower part as a normal refrigeration temperature zone, it is possible to provide a refrigerator that is extremely easy to use.

It is a perspective view of a refrigerator-freezer. It is a front view of the main body in the state where each door of the refrigerator-freezer was removed. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is a perspective view of the main body of the refrigerator-freezer which carries out a longitudinal cross-section. It is a perspective view of a main part which shows the state before fixing a lower vertical partition after fixing an upper vertical partition and a horizontal partition to an inner box. It is a perspective view of a main part which shows the state after fixing a lower vertical partition after fixing an upper vertical partition and a horizontal partition to an inner box. It is the simplified front view of the main body of the state which put the cooler in the inner box before attaching a lower wind path formation body. It is the simplified front view of the main body for explanation of each air passage. It is the simplified front view of the main body of the state which attached the upper wind path formation body and the lower wind path formation body. It is a vertical right side view of a cooling chamber. It is DD sectional drawing of FIG. It is EE sectional drawing of FIG. It is FF sectional drawing of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1 to FIG. 6, first, a main body 2 (heat insulating box) of a refrigerator 1 as a cooling storage is separated by a steel plate outer box 3 having an opening on the front surface, and an interval in the outer box 3. The inner box 4 made of a synthetic resin material having an opening on the front surface, and a foamed polyurethane heat insulating material 5 filled and foamed between the outer box 3 and the inner box 4. Yes.

  Before filling and foaming the foamed polyurethane heat insulating material 5, as shown in FIG. 7, the upper vertical partition 8 that divides the space into left and right parts at the top of the inner box 4 and the space up and down at the left part. The horizontal partition 9 divided and partitioned is fixed to the inner box 4, and the upper vertical partition 8 and the horizontal partition 9 together with the jig disposed in the inner box 4 firmly support the inner box 4 from the inside. The foamed polyurethane heat insulating material 5 is filled and foamed between the outer box 3 and the inner box 4 in the state of supporting in this way.

  After filling the polyurethane foam heat insulating material 5, the compressor 13 and the condenser blower 14 constituting the refrigeration cycle are disposed in the machine chamber 12 at the lower back side of the main body 2, and the condenser 15 is disposed below the bottom surface of the main body 2. In the cooling chamber 10 formed by recessing the inner front surface of the inner box 4 so as to straddle the back of the lower refrigerator compartment 20 lower part and the left freezer compartment 21 lower part on the right in the vertical direction. A cooler 16 which is an evaporator is disposed.

And the top surface which communicates with the said back upper air path 50 above the right refrigerator compartment 20 between the upper air path formation body 7 which forms the back upper air path 50 between the inner boxes 4, and the inner box 4. The top surface air passage forming body 6 that forms the air passage 51 is fixed to the inner box 4. Further, the mounting plate 23 in which the blower 17 is disposed in the opening, and the heat insulating material 24 fixed to the mounting plate 23 so as to form a rear air passage 26 with a space in the upper portion of the mounting plate 23. And a lower air passage forming body 27 formed by integrating a front cover 25 fixed to the front surface of the heat insulating material 24 is fixed to the inner box 4, and then the lower vertical partition 28 is attached to the horizontal partition 9. It fixes to the upper vertical partition 8 and the inner box 4 through the connection air path formation body 42 which is a part (refer FIG. 8).

In this way, the space in the inner box 4 is divided into left and right by the upper vertical partition 8 and the lower vertical partition 28 each provided with a heat insulating material, and the left space thus partitioned left and right in this way. Is divided into upper and lower parts by a horizontal partition 9 having a heat insulating material inside, and is roughly divided into three parts , a refrigeration room 20 which is a right first refrigerated storage room, and a second refrigerated storage in the upper left part. A refrigerator compartment 22 which is a chamber and a freezer compartment 21 at the lower left are formed.

  And the door body 35 by which the upper right lower part was rotatably supported by the front opening part of the right refrigerator compartment 20 is arrange | positioned, and the left upper and lower parts are also each in the left refrigerator compartment 22 and the freezer compartment 21 front opening part. Door bodies 36 and 37 that are rotatably supported are disposed. As shown in FIG. 5, the door body 35, which is a heat insulating door body corresponding to the right refrigerator compartment 20, has, for example, three transparent glasses 32 having an air layer therebetween, and surrounds them with a spacer interposed therebetween. And a frame 33 made of aluminum that is airtight, and a handle 34 is formed at the front left end of the frame 33. A door heater 39, which is a transparent film heater that generates heat when energized, is bonded to the front surface of the middle glass 32, and the back surface of the front glass 32 is painted black.

  A defrosting heater 41 such as a glass tube heater for melting the frost attached to the cooler 16 is provided below the cooler 16 and formed on the inner front surface of the inner box 4 as shown in FIG. The cooling chamber 10 is formed so as to be recessed to substantially the same length as the thickness before and after the cooler 16, and the inner box 4 on the right side of the cooler 16 has a height substantially equal to the thickness before and after the cooler 16. The barrier wall 11 is formed so as not to enter from the right side of the cooler 4. Further, a refrigeration return air passage 45 communicating with the cooling chamber 10 from the lower right side is formed by denting the inner box 4 next to the right side shielding wall 11 of the cooler 16.

  Therefore, when the blower 17 is operated, the cool air generated by the cooler 16 rises in the cooling chamber 10, is sucked by the blower 17, passes through the blower 17, and enters the rear air passage 26. And the through-hole (damper 47 is formed in the up-down direction) through the passage 48 formed by the mounting plate 23 and the heat insulating material 24 and the connection air passage forming body 42 arranged in the right refrigerator compartment 20. 49) is led to the ascending rear upper air passage 50 and the top air passage 51 formed by the upper air passage forming body 7 and the inner box 4 (see FIG. 10). At this time, the damper 47 disposed in the connection air passage formation body 42 opens or closes the cold air circulation passage by connecting or blocking the rear air passage 26 and the rising rear upper air passage 50. Specifically, the damper 47 has a damper motor operated by a control device based on an output signal of a right refrigerator temperature sensor that detects the temperature of the right refrigerator compartment 20, and the rear air passage 26 and the ascending rear surface. The cold air circulation path is opened and closed by communicating with or shutting off the air path 50.

  The top air passage 51 communicates with an introduction through-hole 52 formed in the upper part of the upper vertical partition 8, and the cold air is refrigerated from the top air passage 51 through the introduction through-hole 52. The blow-off communication port 53 is provided in the upper and lower intermediate positions on the left side surface of the upper vertical partition 8 by being slightly lowered in the vertical air passage 54 formed in the upper vertical partition 8 while being supplied into the chamber 22. Then, it is supplied into the left refrigerator compartment 22. Therefore, by forming the vertical air passage 54 in the upper vertical partition 8, there is no need for a special structure for forming the air passage, and the internal volume can be increased.

  Further, the cool air rising in the rear upper air passage 50 for ascending descends the lower rear air passage 55 formed in the upper air passage forming body 7 and communicates with the lower air upper air passage 55 (rear upper air flow). It is formed in the passage 55.) It is supplied into the right refrigerator compartment 20 through 56 and descends in the refrigerator compartment 20. Furthermore, it is supplied into the left refrigerator compartment 22 through the blowout communication port 53 and descends in the refrigerator compartment 22, but since there is a horizontal partitioning body 9, there is a communication facility established in the lower part of the upper vertical partitioning body 8. Is supplied into the right refrigerator compartment 20 through the through-hole 59 and descends in the refrigerator compartment 20.

  Therefore, in the right refrigeration chamber 20, food or the like placed on the placement shelf 40 having a plurality of openings supported by the support portion 38 of the lower vertical partition 28 and the support portion 63 of the inner box 4 can be refrigerated. . In addition, the through-hole 59 and the said blower outlet 56 through which the cool air of the lower left refrigerator compartment 22 passes are opened by the substantially same height level in the upper-lower positional relationship.

  For this reason, the space of the refrigerator compartment 20 below the cold air outlet 56 and the through hole 59 for communication established at the lower part of the upper vertical partition 8 is the refrigerator compartment 20 above the cold air outlet 56 and the through hole 59. The temperature in the upper space can be lowered, and the upper space is indirectly cooled by circulating cold air in the upper rear air passage 50 and the top air passage 51 without directly supplying cold air. For example, as a temperature range of about 10 ° C. to 12 ° C., cold air can be supplied to the lower space to set a normal refrigeration temperature range of about 5 ° C., for example. Accordingly, in the right refrigerator compartment 20, wine is placed on the mounting shelf 18 supported by the support portion 19 of the upper vertical partition 8 and the support portion 63 of the inner box 4 above the cold air outlet 56 and the through-hole 59. By placing it, the wine can be stored at a suitable temperature.

  Then, the cold air supplied into the right refrigerator compartment 20 descends and enters the return air passage 45 from the refrigerator compartment 20 through the outlet 60 formed in the lower air passage formation body 27, and the shielding wall. 11 from the right side of the cooler 16 so as not to enter the cooler 16, and then circulates through the defroster heater 41 disposed below the cooler 16 so as to return to the cooler 16 from below. It is burned.

  Note that the lower end of the outlet 60 is formed to be located above the lower end of the cooler 16, so that when the blower 17 is stopped, even if the cold cold air generated by the cooler 16 is lowered, the refrigeration is performed. This prevents the return air passage 45 from entering the right refrigeration chamber 20 through the outlet 60 and prevents the space in the refrigeration chamber 20 located below the cooler 16 from being overcooled. can do.

  As described above, the air is blown from the lower part of the left refrigeration room 22 into the right refrigeration room 20 through the communication through-hole 59 formed in the lower part of the upper vertical partition 8, and the inside of the right refrigeration room 20 is discharged. Since it descends and descends in the return air passage 45 from the outlet 60 located on the right outer side of the cooler 16 and returns to the cooler 16 from the bottom, the left refrigerator compartment 22 and the right refrigerator compartment The temperature difference with the storage space below 20 cold air outlets 56 can be reduced, and the temperature difference between the upper and lower sides of the left refrigerator compartment 22 can be reduced.

  Further, since the cold air is supplied from the lower part of the left refrigeration room 22 into the right refrigeration room 20 through the communication through hole 59 formed in the lower part of the upper vertical partition 8, a dedicated cold air return duct is provided. Is no longer necessary. In this case, if the temperature of the left refrigeration chamber 22 increases, the temperature of the right refrigeration chamber 20 also increases, so that no special air volume control is required, and the number of parts is reduced.

  On the other hand, the cool air rises in the cooling chamber 10, passes through the blower 17, and enters the rear air passage 26. In the lower air passage formation body 27, the thickness of the heat insulating material 24 at the back of the right refrigerator compartment 20. Then, the thickness of the heat insulating material 24 on the back side of the freezer compartment 21 is reduced, and the cold air rises and descends in the rear air passage 26 formed behind the thinned heat insulating material 24, and the lower air passage forming body. 27 is supplied into the freezer compartment 21 through a plurality of air outlets 61 formed at predetermined intervals in the air and is used for freezing (see FIG. 11). The lowermost outlet 61 is supplied into the lowermost storage container 64 through a duct 62.

As described above, the lower air passage forming body 27 that forms the back air passage 26 is formed of the heat insulating wall body, and the thickness of the heat insulating material 24 of the lower air passage forming body 27 on the back of the right refrigerator compartment 20 is set. By configuring the rear air passage forming body 27 behind the freezer compartment 21 to be thicker than the heat insulating material 24 (see FIG. 5) , Even if the cooler 16 is disposed in the lower part of the back surface across the freezer compartment 21, it is possible to prevent dew from being generated on the side of the refrigerator compartment 20 of the lower air passage formation body 27.

  The cold air supplied into the freezer compartment 21 through the plurality of air outlets 61 is stored in the storage container 64 supported by the support portion 63 formed on the side wall of the inner box 4 and the support portion 38 of the lower vertical partition 28. It is used for freezing the food in the container and descends from around the storage container 64 as indicated by an arrow, and the lowermost storage container 64 is located between the lower surface of the lowermost storage container 64 and the bottom surface of the inner box 4. This is configured to return to the cooler 16 from below via a freezing return air passage 65 through the back of the air.

  Further, as shown in FIG. 6, a water supply tank 68 in which water for ice making is stored is placed on the horizontal partition 9 of the left refrigerator compartment 22, and the water supplied from the water supply tank 68. An ice making machine 69 for making ice is provided in the upper part of the freezer compartment 21. 67 is a tank heater provided on the back side of the upper surface of the horizontal partitioning body 9 so that the water in the water supply tank 68 is not frozen. An ice storage box 66 is a container for storing ice made in the ice making machine 69.

  As described above, the defrosting heater 41 is provided below the cooler 16, and the cool air from the right refrigerator compartment 20 enters the return air passage 45 from the outlet 60 and descends and moves around. Although it is configured to return from the lower right of the cooler 16, as shown in FIG. 12, the rear lower part of the lower air passage forming body 27 in front of the defrosting heater 41 is cut out over the entire left and right direction to cool it. An air passage 70 through which the cool air returning to the vessel 16 passes is formed, and the lower air passage forming body 27 is disposed in front of the defrosting heater 41 from the rear of the air passage 70 to the defrosting heater 41 in the left-right direction. The hanging piece 71 formed integrally with the front cover 23 or separately is suspended downward.

  The hanging piece 71 is formed of a synthetic resin material, and an aluminum tape that is a heat reflecting body 72 having good heat reflectivity is attached to at least the side surface of the hanging piece 71 facing the cooler 16. Specifically, the side surface of the front cover 23 facing the cooler 16, the side surface of the drooping piece 71 facing the cooler 16, the front surface of the hanging piece 71, and the rear lower portion of the lower airflow path forming body 27 that forms the airflow path 70. The heat reflector 72 is affixed to the upper surface, the surface of the inner box 4 forming the cooling chamber 10, and the like. A dew receiving tray 73 that receives dew dripping from the cooler 16 is provided on the bottom surface of the cooling chamber 10. Not only the case where the heat reflector 72 is stuck on at least the side surface of the drooping piece 71 facing the cooler 16, a heat reflecting layer may be formed.

  Without this air passage 70, when the cooler 16 is frosted, the lower right portion of the cooler 16 is blocked with frost, and the right refrigerator compartment 20 cannot be cooled. Since the return of the cool air to 16 can be ensured reliably, the inside of the refrigerator compartment 20 can be cooled stably. Further, when the defrost heater 41 is energized for defrosting, the drooping piece 71 blocks heat from the defrost heater 41, so that upward heat convection occurs and warm air rises. Defrosting time can be shortened. Further, since the heat reflector 72 attached to the hanging piece 71 reflects heat from the defrosting heater 41, heat leakage to the right refrigerator compartment 20 and freezer compartment 21 can be reliably prevented.

  The structure for mounting the lower vertical partition 28 in the inner box 4 will be described below. First, the U-shaped sealing material 74 made of a soft urethane foam material is removed from the front surface of the lower vertical partition 28. Arranged around the upper, rear and lower surfaces.

  First, as shown in FIGS. 13 to 15, the lower vertical partition 28 includes a right frame 29, a left frame 31, and a heat insulating material 30 filled between the right frame 29 and the left frame 31. Consists of

  Then, as shown in FIG. 13 which is a DD sectional view of FIG. 3, the horizontal direction formed on the right side surface of the left frame 31 on the flange 29 </ b> A extending in the horizontal direction formed at the lower left side of the right frame 29. A flange 31A extending from above is overlapped from above, extending downward from the flange 29A to form an extension 29B below the right frame 29, and extending downward from the flange 31A to extend below the left frame 31 31B is formed, and recessed part S1 is formed in the lower vertical partition 28 lower surface. In addition, a protruding guide portion 4A, which is a guide portion having a constant width extending in the front-rear direction, is formed at the left and right intermediate positions on the bottom surface of the inner box 4 so as to protrude upward. Then, in a state where the sealing material 74 is housed in the recess S1, the protruding guide portion 4A is accommodated in the recess S1 so that the extending portions 29B and 31B overlap the left and right side surfaces of the protruding guide portion 4A from the outside. Thus, the lower vertical partition 28 can be fixed to the inner box 4 by fitting from above.

  Moreover, although the lower surface of the upper vertical partition 8 is inclined downward as it goes backward, similarly, the upper surface of the lower vertical partition 28 is also inclined downward as it goes backward, and is a cross-sectional view taken along line EE in FIG. As shown in FIG. 14, a horizontally extending flange 29 </ b> C formed on the upper left side of the right frame 29 is overlapped from above on an upper surface 31 </ b> C obtained by bending the upper part of the left frame 31 to the right. The upper part of the right side frame 29 extends above 29C to form an extension part 29D. And the recessed part formed in the lower surface of the right end part of the horizontal partition 9 so that the extension part 29D of the upper part of the right frame 29 may partially overlap inside the extension part 8A of the right frame of the upper vertical partition 8 The upper part of the lower vertical partition 28 can be fixed to the horizontal partition 9 by fitting the upper part of the lower vertical partition 28 via the sealing material 74 disposed on the flange 29AC in S2.

  Further, as shown in FIG. 15 which is a FF cross-sectional view of FIG. 3, the vertical formed on the rear left portion of the right frame 29 on the flange 31 </ b> E extending in the vertical direction formed on the rear right portion of the left frame 31. A flange 29E extending in the direction is overlapped from the outside and extends rearward from the flange 29E to form an extension 29F at the rear of the right frame 29, and extends rearward from the flange 31E to extend to the rear of the left frame 31. A protruding portion 31F is formed, and a recess S3 is formed on the rear surface of the lower vertical partition 28. On the other hand, the left and right sides of the front surface of the lower air passage forming body 27 are arranged so that the left and right positions are continuous with the protruding guide portion 4A formed so as to protrude in the front-rear direction so as to extend in the left and right intermediate positions on the bottom surface of the inner box 4. A vertically long protruding guide portion 27A extending in the vertical direction at the intermediate position is formed to protrude forward. Then, in a state where the sealing material 74 is housed in the recess S3, the projecting guide portion 27A is housed in the recess S3 so that the extension portions 29F and 31F overlap the left and right side surfaces of the projecting guide portion 27A from the outside. Thus, the rear part of the lower vertical partition 28 is fixed to the lower air passage forming body 27.

  As described above, as shown in FIGS. 7 and 8, the protruding guide portion 4A on the bottom surface of the inner box 4 is fitted with the sealing material 74 interposed in the recess S1 on the lower surface of the lower vertical partition 28. The lower vertical partition 28 is slid and moved while being guided by the projecting guide portion 4A to the rear, and the seal member 74 is interposed in the recess S2 at the right end portion of the horizontal partition 9. When the lower vertical partition 28 is moved rearward while being restricted by the horizontal partition 9 in the left-right direction, the concave portion S3 is formed in the recess S3 formed on the rear surface of the lower vertical partition 28 with the seal material 74 interposed. Since S <b> 3 and the protruding guide portion 27 </ b> A of the lower air passage forming body 27 are fitted, the lower vertical partition 28 is stored in the inner box 4.

  Thereafter, screws 75 are inserted into mounting holes 28B provided in the upper and lower mounting pieces 28A on the front and lower sides of the lower vertical partition 28, and the lower vertical partition 28 is fixed to the upper vertical partition 8 and the inner box 4. .

  And by attaching the sealing material 74 to the outer periphery of the lower vertical partition 28, the cold air leak of the left freezer compartment 21 and the right refrigerator compartment 22 can be prevented reliably. Further, the sealing surface of the inner box 4 incorporating the lower vertical partition 28 and the lower air passage forming body 27 is formed in a convex shape, and the sealing surface of the lower vertical partition 28 is formed in a concave shape so that the sealing material 74 cannot be seen. At the same time, positioning in the left-right direction when the lower vertical partition 28 is incorporated can be performed.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the various embodiments described above without departing from the spirit of the present invention. It encompasses alternatives, modifications or variations.

DESCRIPTION OF SYMBOLS 1 Refrigerating refrigerator 2 Main body 7 Upper air path formation body 10 Cooling chamber 14 Blower 16 Cooler 20 Refrigeration room 26 Back surface air path 27 Lower air path formation body 45 Return air path 50 Back surface upper air path 55 for raising Back upper air path for descending 56 Cold air outlet 60 Outlet

Claims (1)

Includes at least a second refrigerated storage compartment in which the first refrigerated storage chamber formed heat insulating box body is formed on the heat-insulating main body, the temperature of the first cold storage compartment is different in upper and lower portions refrigerator Because
Top in communication with the rear air path above the rear air path and said first refrigerated storage compartment on the back side of the first refrigerated storage compartment in the air path forming member which is attached to the inside front of the heat insulation box Forming an air path,
Cool air generated by a cooler disposed in a cooling chamber communicating with the back air passage is raised in the back air passage by a blower ,
Cold formed in the lower top air passage position of the rear air path at an intermediate position in the vertical of the first refrigerated storage compartment is lowered a portion of said cool air rose the rear air passage it returns to the cooler through the air outlet port and a return air path formed in the air passage forming body bottom is supplied to the first refrigerated storage compartment via the air outlet,
The refrigerator is characterized in that the remaining portion of the cold air rising in the rear air passage is guided to the top air passage, and then supplied to the second refrigerated storage chamber and returned to the cooler .

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