JP2016109365A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress temperature rise in a storage container even when the door of a storage chamber is opened or closed.SOLUTION: A refrigerator includes: a storage chamber which is cooled by cool air; a door which opens or closes the front of the storage chamber; a storage container which is housed in the storage chamber to store articles to be stored; and a cold storage agent set at a position corresponding to the lower surface of the bottom part of the storage container in the storage chamber.SELECTED DRAWING: Figure 1

Description

  Embodiments of the present invention relate to a refrigerator.

  Some household refrigerators are provided with a chilled chamber partitioned by a partitioning portion in a lower part of a refrigerator compartment constituting the storage chamber. This chilled chamber also constitutes a storage chamber, and a storage container for storing stored items therein is accommodated in the chilled chamber so that it can be taken in and out in the front-rear direction. Usually, the chilled room is provided with a dedicated cold air outlet in order to set the storage temperature to be slightly lower than the temperature of the refrigerator room. With such a configuration, when the door of the refrigerator compartment is opened and closed, the air outside the refrigerator easily enters the chilled room, and the temperature in the chilled room is likely to rise.

JP 2014-62669 A

  Then, the refrigerator which can suppress the temperature rise of a storage container even if the door of a storage chamber is opened and closed is provided.

  The refrigerator of the present embodiment includes a storage room that is cooled by cold air, a door that opens and closes the front of the storage room, a storage container that is stored in the storage room and stores stored items therein, and a storage container in the storage room. A cold storage agent provided at a position corresponding to the bottom surface of the bottom portion.

A longitudinal side view showing a schematic configuration of the refrigerator according to the first embodiment. Vertical side view of chilled chamber Longitudinal front view along line X3-X3 in FIG. Enlarged vertical side view along line X4-X4 in FIG. FIG. 3 equivalent view showing the second embodiment Vertical sectional side view along line X6-X6 in FIG.

Hereinafter, a refrigerator according to a plurality of embodiments will be described with reference to the drawings. In addition, in each embodiment, the same code | symbol is attached | subjected to the substantially same component, and description is abbreviate | omitted.
(First embodiment)
First, a first embodiment will be described with reference to FIGS. In FIG. 1 which shows schematic structure of the whole refrigerator, the refrigerator main body 1 is equipped with the rectangular box-shaped heat insulation box 2 which the front surface (left side in FIG. 1) opened. The heat insulating box 2 is configured by filling a heat insulating material 5 between an outer box 3 made of steel plate and an inner box 4 made of synthetic resin. In the heat insulation box 2, a refrigerator compartment 6, a vegetable compartment 7, and a freezer compartment 8 are formed in order from the top as a plurality of storage compartments. Among these, the refrigerator compartment 6 and the vegetable compartment 7 are both storage compartments in a refrigeration temperature zone (for example, about 3 to 6 ° C.), and in this case, a partition plate 9 made of synthetic resin is provided between the refrigerator compartment 6 and the vegetable compartment 7. It is partitioned by. The lowermost freezing room 8 is a freezing temperature zone (for example, about −20 ° C.) in which the storage temperature is set lower than that of the refrigerating room 6 and the vegetable room 7. The space is partitioned by a heat insulating partition wall 10 having heat insulating properties. The freezer compartment 8 is provided with an automatic ice making machine (not shown).

  Doors 6a, 7a, 8a are provided on the front surfaces of the refrigerator compartment 6, the vegetable compartment 7, and the freezer compartment 8, respectively. Among these, the door 6a of the refrigerator compartment 6 is provided so that rotation in the front-back direction is possible via a hinge (not shown) provided on one side. A door pocket 11 is provided inside the door 6a. The door 7a of the vegetable compartment 7 is a drawer-type door that slides in the front-rear direction, and is provided with cases 12a and 12b for storing stored items inside. Similarly to the door 7a of the vegetable compartment 7, the door 8a of the freezer compartment 8 is a drawer-type door that slides in the front-rear direction, and is provided with cases 13a and 13b that accommodate stored items inside.

  A plurality of shelf plates 14 are provided inside the refrigerator compartment 6, and the interior of the refrigerator compartment 6 is divided into a plurality of stages by these shelf plates 14. An intermediate partition plate 15 for forming a chilled chamber is provided in the lower part of the refrigerator compartment 6, and a chilled chamber 16 is formed below the intermediate partition plate 15. This chilled chamber 16 also functions as a storage chamber. The chilled chamber 16 is normally set to have a storage temperature slightly lower than that of the refrigerator compartment 6 (for example, around 0 ° C.). The intermediate partition plate 15 functions as a ceiling plate of the chilled chamber 16 and also functions as a shelf at the lowest stage of the refrigerator compartment 6.

  The chilled chamber 16 is provided with a chilled case 17 constituting a storage container so as to be slidable in the front-rear direction. A handle 18 is provided at the front of the chilled case 17. The chilled case 17 accommodates a stored item (not shown). As shown in FIG. 3, a tank installation part 20 is formed on the left side of the chilled chamber 16 via a partition part 19, and a water supply tank 21 is detachably installed in the tank installation part 20. The water supply tank 21 stores water to be supplied to the automatic ice making machine.

  A cooler chamber 22 is provided behind the vegetable chamber 7 and the freezer chamber 8, and a cooler 23 is disposed in the cooler chamber 22. A cooling air circulation fan 24 is disposed above the cooler 23. A cold air passage 25 is provided from the back of the freezer compartment 8 to the back of the refrigerator compartment 6. A cold air outlet 26 communicating with the cold air passage 25 is provided at the back of the freezer compartment 8, and a part of the cold air cooled by the cooler 23 passes through the cold air passage 25 from the cold air outlet 26 to the freezer compartment. The inside of the freezer compartment 8 is cooled by the cold air. The cold air that has cooled the inside of the freezer compartment 8 is returned from the cold air return port 27 into the cooler chamber 22.

  Further, a plurality of cold air outlets 28 communicating with the cold air passage 25 are provided at the back of the refrigerator compartment 6, and a part of the cold air cooled by the cooler 23 flows upward through the cold air passage 25, It is supplied into the refrigerator compartment 6 from the cold air outlet 28, and the inside of the refrigerator compartment 6 is cooled by the cold air. The cold air that has cooled the inside of the refrigerator compartment 6 also flows into the vegetable compartment 7, cools the inside of the vegetable compartment 7, and then returns to the cooler compartment 22 through a return duct (not shown).

  A machine room 29 is formed at the rear part of the bottom of the heat insulation box 2, and a compressor 30 of a refrigeration cycle and the like are disposed therein. A control device 31 is disposed on the back of the heat insulation box 2. The control device 31 is mainly composed of a microcomputer, has a function of controlling the overall operation of the refrigerator, and functions as a control means.

  Next, the configuration in the vicinity of the chilled chamber 16 will be described with reference to FIGS. In the partition plate 9 that partitions the refrigerator compartment 6 and the vegetable compartment 7, a step portion 9a that is one step lower is formed at a portion corresponding to the lower portion of the chilled case 17, and a support member 33 is provided on the step portion 9a. Has been placed. And the cool storage agent 34 which makes a rectangular flat shape is installed on this support member 33, and the chilled case 17 is arrange | positioned so that this cool storage agent 34 may be received. Therefore, the regenerator 34 is disposed at a position corresponding to the bottom surface of the bottom of the chilled case 17. The cool storage agent 34 is, for example, a bag of water, a highly water-absorbing resin, an antiseptic, and a shape stabilizer, and repeats the phase change between the liquid phase and the solid phase due to temperature fluctuations.

  The support member 33 is provided with a plurality of convex portions 33a for forming a space portion 35 through which cool air flows between the support member 33 and the step portion 9a, and an opening portion 36 communicating with the space portion 35 is provided. A plurality are formed. The rear portion of the space portion 35 communicates with the cold air passage 25 and serves as a cold air guide port 37 for the space portion. The support member 33 is made of a material having good thermal conductivity, for example, aluminum.

  Further, a chilled chamber cold air passage 38 is provided from the back to the upper portion of the chilled chamber 16, and the chilled chamber cold air passage 38 has a plurality of upper cold air outlets 39 positioned above the chilled case 17. Is formed. These are selectively opened and closed at the portion where the rear lower inlet 38a which is the base end portion of the chilled chamber cool air passage 38 and the space cool air guide port 37 which is the rear portion of the space 35 face. A damper 40 is provided.

  When the damper 40 opens the inlet 38a, part of the cold air passing through the cold air passage 25 is supplied from the inlet 38a through the chilled chamber cold air passage 38 into the chilled case 17 from the upper cold air outlet 39 (FIG. 2). Arrow A1). When the damper 40 opens the space cool air guide port 37, a part of the cool air passing through the cool air passage 25 is supplied from the space cool air guide port 37 into the space 35 (see arrow A2 in FIG. 2). ). A temperature sensor 41 is provided at a front portion of the support member 33 so as to be positioned in the vicinity of the cool storage agent 34.

  As shown in FIG. 3, the support member 33 is provided with rail portions 43 that are positioned on both the left and right sides of the cold storage agent 34. The rail portion 43 is for guiding the chilled case 17 in the front-rear direction, and extends in the front-rear direction (see FIG. 4). On both the left and right sides of the bottom of the chilled case 17, sliding convex portions 44 (see FIG. 4) are provided which are located at portions corresponding to the rail portions 43 and project downward. V-shaped drop portions 45 are formed at predetermined portions of the left and right rail portions 43. A front rising slope 45 a is formed at the front part of the drop part 45, and a front rising slope 44 a is also formed at the front part of the sliding projection 44.

  Here, as shown in FIG. 4, the clearance between the bottom surface of the chilled case 17 and the top surface of the rail portion 43 is a, the depth of the drop 45 is b, and the height of the sliding projection 44 is c. In this case, the depth b of the drop portion 45 is set to be larger than the height c of the sliding projection 44 (c <b). Clearance a is greater than zero.

  In this case, in a state where the chilled case 17 is moved to the rear storage position shown in FIG. 1, the left and right sliding convex portions 44 are falling into the drop portions 45 in the left and right rail portions 43, A gap is formed between the tip of the sliding projection 44 and the bottom of the drop 45 (see the solid line state in FIG. 4). In this state, the bottom bottom surface of the chilled case 17 is in contact with the top surface of the regenerator 34. Then, when the user puts his / her finger on the handle 18 of the chilled case 17 and pulls the chilled case 17 forward, the sliding projection 44 climbs while sliding on the slope 45a of the corresponding drop 45, and the rail The upper surface of the portion 43 is slid (see the state of the two-dot chain line in FIG. 4). When the front ends of the left and right sliding projections 44 slide on the top surface of the rail portion 43 in this way, the bottom bottom surface of the chilled case 17 becomes higher by the height of the sliding projection 44. In this state, the cool storage agent 34 is separated from the upper surface.

  Therefore, when the sliding projection 44 slides on the rail portion 43, the sliding resistance between the chilled case 17 and the rail portion 43 is reduced, and the bottom surface of the chilled case 17 is the top surface of the regenerator 34. Therefore, the chilled case 17 can be smoothly slid forward.

  On the other hand, when the chilled case 17 is pushed forward from the state where the chilled case 17 is drawn forward, the bottom surface of the chilled case 17 is separated from the upper surface of the regenerator 34, and the sliding convex portion 44 is on the rail portion 43. Slide. When the chilled case 17 is pushed into the rear storage position, the left and right sliding convex portions 44 fall into the drop portions 45 of the corresponding rail portions 43. As a result, the bottom lower surface of the chilled case 17 comes into contact with the upper surface of the cold storage agent 34.

  Next, the operation of the portion mainly related to the chilled chamber 16 will be described. Normally, the damper 40 in the vicinity of the chilled chamber 16 opens the inlet 38a of the chilled chamber cool air passage 38, and the space cool air guide port 37 is closed. In this state, a part of the cold air passing through the cold air passage 25 passes through the chilled chamber cold air passage 38 from the inlet 38a, and is supplied into the chilled case 17 from the upper cold air outlet 39 (see arrow A1 in FIG. 2). The stored item stored in the chilled case 17 is cooled by the cold air. Accordingly, the regenerator 34 provided below the chilled case 17 is also indirectly cooled via the chilled case 17.

  On the other hand, when the temperature detected by the temperature sensor 41 provided in the vicinity of the cool storage agent 34 rises to a preset temperature by opening / closing the door 6a or the like, the control device 31 moves the damper 40 to the space cool air guide port. 37 is opened and switched to close the inlet 38a of the chilled chamber cold air passage 38. In this state, a part of the cool air passing through the cool air passage 25 flows into the space portion 35 from the space cool air guide port 37 (see arrow A2 in FIG. 2). With this cold air, the cool storage agent 34 is cooled intensively.

According to the above-described embodiment, the following operational effects can be obtained.
In the chilled chamber 16, since the cold storage agent 34 is provided at a position corresponding to the bottom surface of the bottom of the chilled case 17, when the door 6 a of the refrigerated chamber 6 in front of the chilled chamber 16 is opened and closed, warm air outside the refrigerator is chilled. Even if it enters the inside of the chilled case 16, it is possible to suppress the temperature inside the chilled case 17 from rising as much as possible, and the chilled case 17 can be quickly cooled by the cold storage agent 34 even after the door is opened and closed. In addition, in this case, since the regenerator 34 is present outside the chilled case 17, the storage capacity of the chilled case 17 can be prevented from being reduced. Furthermore, since the stored item accommodated in the chilled case 17 is placed near the bottom in the chilled case 17, it is easily cooled effectively by the cold storage agent 34.

  In the chilled chamber 16 and positioned above the chilled case 17, the upper cold air outlet 39 for blowing out cold air is provided in the chilled case 17, so that the inside of the chilled case 17 can be efficiently cooled from the upper surface. it can.

  A space 35 is provided in the chilled chamber 16 so as to be positioned below the cool storage agent 34 and through which cool air flows. According to this configuration, the cool storage agent 34 can be efficiently cooled by the cold air flowing through the space 35. In addition, in the present embodiment, since the support member 33 that supports the regenerator 34 is formed with a plurality of openings 36, the regenerator 34 is directly cooled by the cold air flowing through the space 35 through the openings 36. The cool storage agent 34 can be cooled more efficiently.

  A temperature sensor 41 provided in the vicinity of the regenerator 34, a space cool air guide port 37 for guiding cool air to the space portion 35, and a damper 40 for opening and closing the space cool air guide port 37; The damper 40 is controlled based on the temperature detected by the sensor 41. According to this configuration, when the temperature near the cool storage agent 34 increases, the vicinity of the cool storage agent 34 can be quickly cooled.

  A rail portion 43 provided in the chilled chamber 16 for guiding the chilled case 17 in the front-rear direction, and a chilled case that slides on the rail portion 43 when the chilled case 17 is slid in the front-rear direction. The sliding projection 44 that reduces the sliding resistance of the sliding projection 44, and the sliding projection 44 that is deeper than the tip of the sliding projection 44 in a state where the chilled case 17 provided on the rail portion 43 side is moved to the rear storage position. And a lower part lower surface of the chilled case 17 is in contact with the upper surface of the regenerator 34 when the sliding convex part 44 falls into the drop part 45. According to this configuration, the bottom surface of the bottom of the chilled case 17 can be kept in contact with the cool storage agent 34 in a state in which the chilled case 17 is stored in the storage position, and the chilled case 17 is well cooled from the bottom by the cool storage agent 34. It becomes possible to do.

(Second Embodiment)
A second embodiment will be described with reference to FIGS. The second embodiment is different from the first embodiment in the following points. That is, as shown in FIG. 5, the rail portion 51 that guides the chilled case 17 in the front-rear direction has a right side surface of the inner box 4 that faces the right side surface of the chilled case 17 and a left side surface of the chilled case 17. Are provided on the right side of the partitioning portion 19 facing each other. Each rail portion 51 extends in the front-rear direction as shown in FIG. Sliding convex portions 52 projecting to the side are provided at portions near the rear portions of the left and right side surfaces of the chilled case 17.

  A front rising slope 51 a is formed at the rear end of each rail part 51, and the rail part 51 is cut off behind the slope 51 a to form a drop part 53. Also, a front rising slope 52 a is formed at the front portion of each sliding projection 52.

  In this case, in a state where the chilled case 17 is moved to the rear storage position indicated by the solid line in FIG. 6, the left and right sliding projections 52 fall into the drop portions 53 behind the left and right rail portions 51. Yes. In this state, the bottom bottom surface of the chilled case 17 is in contact with the top surface of the regenerator 34. When the user puts his / her finger on the handle portion 18 of the chilled case 17 and pulls the chilled case 17 forward, the inclined surface 52a of the front portion of the sliding convex portion 52 slides on the inclined surface 51a of the corresponding rail portion 51. The sliding projection 52 slides on the upper surface of the rail portion 51 (see the state of the two-dot chain line in FIG. 6). When the left and right sliding projections 52 slide on the upper surface of the rail portion 51 in this way, the bottom lower surface of the chilled case 17 is increased by the sliding projection 52 (see d in FIG. 6). Since it becomes high, it will be in the state spaced apart from the upper surface of the cool storage agent 34.

  Therefore, when the sliding projection 52 slides on the rail portion 51, the sliding resistance between the chilled case 17 and the rail portion 51 is reduced, and the bottom surface of the chilled case 17 is the top surface of the regenerator 34. Therefore, the chilled case 17 can be smoothly slid forward.

On the other hand, when the chilled case 17 is pushed backward from the state where the chilled case 17 is drawn forward, the bottom surface of the chilled case 17 is separated from the upper surface of the regenerator 34, and the sliding convex portion 52 is on the rail portion 51. Slide. Then, when the chilled case 17 is pushed into the rear storage position, the left and right sliding convex portions 52 fall into the corresponding drop portions 53 behind the rail portions 51. As a result, the bottom lower surface of the chilled case 17 comes into contact with the upper surface of the cold storage agent 34.
Also in the second embodiment having such a configuration, it is possible to obtain the same operational effects as those of the first embodiment described above.

(Other embodiments)
In above-mentioned embodiment, although the vegetable compartment 7 showed the example located between the refrigerator compartment 6 and the freezer compartment 8, the position of the freezer compartment 8 and the vegetable compartment 7 was replaced, and the vegetable compartment 7 is located in the lowest part. It can also be configured. Moreover, although the cooler 23 showed one example, it can also be set as the structure using two, the cooler for refrigeration temperature zones, and the cooler for freezing temperature zones.

  As described above, according to the refrigerator of the present embodiment, the temperature of the storage container is maintained even when the door of the storage chamber is opened and closed by providing the cold storage agent at a position corresponding to the bottom surface of the bottom of the storage container. The rise can be suppressed.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 1 is a refrigerator body, 6 is a refrigerator room (storage room), 9 is a partition plate, 16 is a chilled room (storage room), 17 is a chilled case (storage container), 23 is a cooler, 24 is a fan, 31 Is a control device (control means), 33 is a support member, 34 is a cold storage agent, 35 is a space portion, 37 is a cold air guide port for the space portion, 38 is a cold air passage for the chilled chamber, 39 is a cold air outlet for the upper portion, and 40 is Damper, 41 is a temperature sensor, 43 is a rail part, 44 is a sliding convex part, 45 is a drop part, 51 is a rail part, 52 is a sliding convex part, and 53 is a drop part.

Claims (5)

A storage room cooled by cold air;
A door that opens and closes the front of the storage room;
A storage container that is stored in the storage chamber and stores stored items therein;
A cold storage agent provided in a position corresponding to the bottom lower surface of the storage container in the storage chamber;
Refrigerator equipped with.   The refrigerator according to claim 1, wherein the refrigerator is provided with an upper cold air outlet that is positioned above the storage container and blows cold air into the storage container.   The refrigerator according to claim 1 or 2, wherein a space portion through which cool air flows is provided in the storage chamber and below the cool storage agent. A temperature sensor provided in the storage room and in the vicinity of the cold storage agent;
A damper that opens and closes an inlet / outlet of cool air for cooling the storage container,
The refrigerator according to any one of claims 1 to 3, wherein the damper is controlled based on a temperature detected by the temperature sensor. A rail portion provided in the storage chamber for guiding the storage container in the front-rear direction;
Protruding parts for sliding that reduce sliding resistance of the storage container by sliding on the rail part when the storage container is slid in the front-rear direction provided in the storage container,
A drop portion that is deeper than the tip of the sliding projection and falls into the sliding portion in a state where the storage container is moved to the rear storage position provided on the rail side;
The refrigerator according to any one of claims 1 to 4, wherein the bottom surface of the bottom of the storage container comes into contact with the top surface of the regenerator because the sliding convex portion falls into the drop portion.

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