JP2007120918A - Freezer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a freezer capable of cooling a lowermost case even when a cold air return opening to a cooler is structurally positioned at an upper portion with respect to a lowermost portion in a storage, in the freezer having the cases for storing food and the like in several stages. <P>SOLUTION: A cold air guide member 13 is mounted on a backside upper portion of the lowermost case 9 disposed at a lowermost stage of the storage 17, and a part between a partitioning plate 15 and the lowermost case 9 is closed, thus the backside cold air 24 flowing between the upper case 8 and the partitioning plate 15 does not enter into the lowermost case, a short-circuit route of the cold air returning to the cold air return opening 12 does not formed, and the inside of lowermost case 9 can be sufficiently cooled. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a freezer having a cooler, a blower, and the like, and more particularly to cooling of the lowermost stage in the storage.

  In a conventional freezer, for example, “a refrigerator body filled with a heat insulating material between an outer box and an inner box, a cooler provided on the inner surface of the inner box, a cooler cover covering the front of the cooler, In this configuration, the cooling air is circulated by cooling the food in the refrigerator after the cool air cooled by the cooler is supplied to the refrigerator by the fan. Then, it is a cold air circulation that returns from the cold air inlet ”(for example, see Patent Document 1).

JP-A-62-237267 (page 1, lower left column, page 2, upper right column, Fig. 1)

The above-described conventional freezer has the following problems.
(1) Structurally, the cool air return port to the cooler is located above the lowest part in the storage. For this reason, there is a problem that the cold air is sucked into the cold air return port from the middle without being lowered to the lowermost container, and the lower part in the storage is not lowered to a predetermined temperature.

(2) If the wire shelf is a plate-like shelf or container in order to improve the storage of food, etc. in the storage, the cool air blown into the storage will gradually drop from the top. Therefore, there is a problem that the food on the shelf or in the container cannot be cooled well as it goes to the lower part of the storage. In other words, there is a problem that the temperature distribution in the storage is not uniform.
(3) Further, the lower surface of the lowermost container is affected by heat leakage due to outside air, and the temperature becomes high. Therefore, in order to keep the lowermost container at a predetermined temperature or lower, there is a problem that the temperature of the upper container is excessively lowered and the power consumption is increased.

  The present invention has been made to solve the above-described problems. The first object is to provide a structure in which the cool air return port to the cooler is located above the lowest part in the storage. A freezer capable of cooling the food in the lowermost container in the storage is obtained. In addition, the second purpose is to make the temperature distribution in the storage uniform even when the wire-type shelf network is a plate-like shelf board or container in order to improve the storage of food and the like in the storage. A freezer that can be obtained.

  The freezer according to the present invention is formed on the back wall portion side of the inner box, a cooler chamber in which a cooler is installed, and a storage that is formed on the front side of the inner box and stores a plurality of storage containers such as foods. A cool air circulation configured to supply and circulate the cool air generated by the cooler in the cooler chamber from the top to the bottom, which is made of a heat insulating material and partitions the inner box into a cooler chamber and the storage; In the freezer equipped with a blower for operation, a cold air guide member for closing the space between the container and the partition plate and guiding the cold air into the container is disposed at the upper back of the container disposed at the lowest stage of the storage. is there.

  By attaching a cold air guide member to the lowermost container in the storage, the present invention can guide the cold air sucked into the cold air return port from the middle without descending to the lowermost container into the lowermost container. The inside of the container can be sufficiently cooled.

Embodiment 1 FIG.
1 is a vertical sectional view of a freezer according to Embodiment 1 of the present invention, FIG. 2 is an external view of an upper container 8 according to Embodiment 1 of the present invention, and FIG. 3 is a diagram of the lowermost container 9 according to Embodiment 1 of the present invention. It is an external view.
In FIG. 1, reference numeral 1 denotes a freezer main body. The freezer main body 1 holds the inside of the storage 17 at a predetermined temperature or lower and can store frozen foods for a long period of time. The freezer body 1 includes an outer box 2 that forms an outer shell, an inner box 3 that forms a storage 17 inside the outer box 2, a foam insulation 14 that is interposed between the outer box 2 and the inner box 3, and the freezer body 1. The door 4 is configured to be openable and closable on the front surface, the compressor 5 is installed at the lower back of the freezer body 1 constituting the refrigeration cycle, and the cooler 6 is attached to the back wall portion side of the inner box 3. . Furthermore, the inner box 3 has a partition plate 15 made of a heat insulating material (for example, a styrofoam material) or the like that partitions the storage 17 formed on the front side of the inner box 3 and the cooler chamber 16 formed on the back wall side. A cold air return port 12 for returning the cold air to the cooler 6 is provided below the partition plate 15. A cool air circulation blower 7 is provided above the cooler 6 to supply and circulate the cool air generated by the cooler 6 from the top to the bottom of the storage 17. A cold air outlet a10 and a cold air outlet b11 are formed in the fan grill 21 attached to the front surface of the cool air circulation blower 7. And in the storage 17, the shelf 18, the upper container 8 arranged in a plurality of stages, and the lowermost container 9 molded with a thermoplastic resin (for example, PP) are arranged in the lowermost part in the storage 17 (note that In this embodiment, all the containers arranged on the upper part of the lowermost container 9 are referred to as the upper container 8). Further, a shelf front slit 18 a serving as a cold air passage is formed at the front of the shelf 18, and a cool air guide member 13 is provided at the upper back of the lowermost container 9.

  In FIG. 2, a bottom slit 8a is formed at the front bottom of the upper container 8, a bottom slit 8b is formed at the rear bottom, and a back slit 8c is formed at the back. In FIG. 3, the lowermost container 9 is also formed with a bottom slit 9 a at the front bottom of the lowermost container 9 and a bottom slit 9 b at the rear bottom, similar to the upper container 8, but a slit is formed at the back of the lowermost container 9. It has not been.

Next, the flow of cold air will be described.
In the freezer configured as described above, the cool air generated by the cooler 6 is blown forward from the cool air circulation blower 7 from the cool air outlet a10 of the fan grill 21 as shown by the arrows in FIG. The front cold air 22 (indicated by the solid line arrow) is supplied to the upper front portion of the upper container 8 through the partial slit 18a. Further, from the cold air outlet b11, rear cool air 23 (shown by a broken line arrow) is blown out to the upper rear portion of the upper container 8, and is cooled so as to wrap food stored in the upper container 8. The front cool air 22 and the rear cool air 23 that have entered the upper container 8 are discharged from the bottom slit 8a, the bottom slit 8b, and the back slit 8c, and supply the cool air in order to the upper container 8 disposed in the lower stage of the container. However, the cool air blown out from the rear slit 8c does not completely enter the upper container 8 disposed in the lower stage of the container, and the rear cool air 24 (between the upper container 8 and the partition plate 15 disposed in the lower stage of the container. Distributed as a dash-dotted arrow). In this way, the front cool air 22 and the rear cool air 23 are supplied from the upper part of each upper container 8, are discharged from the bottom slit 8a, the bottom slit 8b, and the rear slit 8c, and cool the inside of each container in order from the top. To go.

The rear cool air 24 that flows between the upper container 8 and the partition plate 15 disposed at the upper part of the lowermost container 9 is placed in the lower upper container 9 at the upper rear surface of the lowermost container 9 disposed at the lowermost stage in the storage 17. A cold air guide member 13 is attached to guide the air to the lowermost container 9 by the cold air guide member 13. In addition, as shown in FIG. 3, since no slit is formed on the back surface of the lowermost container 9, cold air flows to the bottom of the lowermost container 9. Thereafter, the cold air that has passed through the bottom slit 9 a and the bottom slit 9 b of the lowermost container 9 is returned to the cooler 6 from the cold air return port 12 through the bottom cold air passage 20. This is repeated so that the temperature of all the containers arranged in the storage 17 is uniformly cooled below a predetermined temperature.
In addition, each upper container 8 and lowermost container 9 has a concave and convex shape formed on the bottom of the container as shown in FIG. 4, so even when food or the like is stored, a cold air passage is secured in the recess 25 at the bottom of the container. Since the cold air passes through the bottom slit 8a and the bottom slit 8b of the upper container 8, and the bottom slit 9a and the bottom slit 9b of the lowermost container 9, the food stored in the bottom of the container can be sufficiently cooled. .

  Further, for example, in the lowermost container 9 disposed at the lowermost stage in the storage 17, even when the bottom slit 9a and the bottom slit 9b of the lowermost container 9 are closed by food stored in the lowermost container 9, The front cool air 22 and the rear cool air 23 discharged from the bottom slit 8a and the bottom slit 8b of the upper container 8 disposed at the upper part of the lowermost container 9 cool the inside of the lowermost container 9, and the front upper part of the lowermost container 9 From the door 4 and the lowermost container 9, passes through the bottom cool air passage 20, and is returned to the cooler 6 from the cool air return port 12. That is, since the cool air guide member 13 is provided and the lowermost container 9 has no rear slit, the interior of the lowermost container 9 can be sufficiently cooled without returning to the cool air return port 12 through the short circuit path.

  Further, for example, in the lowermost container 9 arranged at the lowermost stage in the storage 17, even when the inside of the lowermost container 9 is full due to food stored in the lowermost container 9, Although the front cool air 22 and the rear cool air 23 discharged from the bottom slit 8a and the bottom slit 8b of the upper container 8 arranged do not enter the lower container 9, the upper part of the lower container 9 and the door 4 and the lower container 9 through the bottom cool air passage 20 and returned to the cooler 6 from the cool air return port 12. That is, since the cool air guide member 13 is provided, the upper, front, and bottom portions of the lowermost container 9 are cooled without returning to the cool air return port 12 through the short circuit path, so that the lowermost container 9 can also be cooled. Details of the cold air guide member 13 that performs such a function will be described with reference to FIGS.

5 and 6 are an attachment perspective view and a longitudinal sectional view of the cold air guide member 13 according to Embodiment 1 of the present invention.
As shown in FIG. 5, the cold air guide member 13 includes a hard portion 13a and a soft portion 13b formed by extrusion molding of vinyl chloride, and the hard portion 13a has a flange on the upper back of the lowermost container 9 at the front and rear. An attachment portion is formed, and a fin shape is formed in the soft portion 13b to guide cold air. Since this fin-shaped portion is soft, it can be brought into close contact with the partition plate 15 by surface contact, and the back cool air 24 flowing between the upper container 8 and the partition plate 15 can be guided into the lowermost container 9. Further, as shown in FIG. 6, a claw 9c is formed on the back wall of the lowermost container 9, and the hard portion 13a of the cold air guide member 13 is attached so as to engage with the claw 9c.

7 and 8, when the cold air guide member 13 is integrally formed on the back upper part of the lowermost container 9, the lowermost container 9 is hard molded with a thermoplastic resin (for example, PP). Since the partition plate 15 and the cold air guide member 13 are rigid, they are in line contact. However, as shown in FIG. 7, from the dimension A of the gap between the cold air guide member 13 and the partition plate 15, the front of the lowermost container 9 and the door 4 By increasing the size B of the gap and the size C of the bottom cold air passage 20, cold air is guided to the gap between the front of the lower container 9 and the door 4 and the bottom cold air passage 20, which have a small air passage resistance. 9 can be sufficiently cooled.
Even when the lower container 9 is filled with food stored in the lower container 9, the upper, front and bottom portions of the lower container 9 are cooled by the above dimensional relationship, so the lower container The inside of the container 9 can also be cooled.

  As described above, in the first embodiment, the space between the lowermost container 9 and the partition plate 15 is closed on the rear upper part of the lowermost container 9 disposed at the lowermost stage of the storage 17, so that cold air is contained in the lowermost container 9. Since the cool air guide member 13 for guiding the air to the rear is disposed, there is no short circuit path in which the back cool air 24 flowing between the upper container 8 and the partition plate 15 returns to the cool air return port 12 without entering the lower container 9. The inside of the lowermost container 9 can be sufficiently cooled.

  The cold air guide member 13 includes a hard portion 13a and a soft portion 13b formed by extrusion molding of vinyl chloride, and an attachment portion that holds the flange on the back of the lowermost container 9 back and forth is formed on the hard portion 13a. Since the soft portion 13b is formed with a fin shape that guides cold air, the hard portion 13a can securely attach the cold air guide member 13 to the lowermost container 9, and the fin portion of the soft portion 13b is separated from the partition plate. 15 can be brought into close contact by surface contact, and cold air can be effectively guided to the lowermost container 9.

  Further, since a bottom slit 9a and a bottom slit 9b are formed at the bottom of the lowermost container 9, cold air is taken in from the upper part of the lowermost container 9, discharged from the bottom slit 9a and the bottom slit 9b of the lowermost container 9. The cool air can be returned from the cool air return port 12 to the cooler 6 through the bottom cool air passage 20 at the bottom of the lower container 9, and the inside of the lowermost container 9 can be sufficiently cooled.

  In addition, a bottom slit 8a and a bottom slit 8b are formed at the bottom of the upper container 8 arranged in a plurality of stages above the lowermost container 9, and a rear slit 8c is formed at the back, so that the cold air taken in from the upper part of the upper container 8 is The cool air can be supplied to the upper container 8 that is discharged from the slit and disposed in the lower stage of the upper container 8 in order, and can be cooled so that the temperature distribution in the storage 17 becomes uniform.

Embodiment 2. FIG.
9 and 10 are views showing Embodiment 2 of the present invention, and are an enlarged view of a main part of a partition plate 15 that partitions the storage 17 and the cooler chamber 16 and a sectional view thereof. In the first embodiment, the hard portion 13a of the cool air guide member 13 is attached to the rear flange portion of the lowermost container 9, and the soft portion 13b of the cool air guide member 13 is partitioned when the lowermost container 9 is stored in the storage 17. Although the cold air is led into the lowermost container 9 so as to be in close contact with the plate 15, in this embodiment, the cold air guide member 13 is integrally formed with the partition plate 15 as shown in FIGS. 9 and 10. The guide plate 15a having a fin shape for guiding cold air to the partition plate 15 is formed so that when the lowermost container 9 is stored, the guide plate is brought into close contact with the flange portion at the upper back of the lowermost container 9 by surface contact. Cool air is introduced into the lowermost container 9.

  Even with such a configuration, as in the first embodiment, the backside cold air 24 flowing between the upper container 8 and the partition plate 15 does not enter the lowermost container 9 and returns to the cold air return port 12, and the short circuit path is eliminated. The inside of the lower container 9 can be sufficiently cooled. Further, since the cool air guide member 13 is integrally formed with the partition plate 15, the number of parts can be reduced.

Embodiment 3 FIG.
In the first and second embodiments described above, the case where the upper container 8 and the lowermost container 9 are stored in the storage 17 has been described. However, the present invention can be applied to a case where a plurality of shelf boards are arranged instead. Is done. In that case, for example, slits (not shown) are provided on the front and rear of each shelf plate, respectively, and the shelf plate arranged at the bottom of the storage 17 is closed between the shelf plate and the partition plate 15 to cool the air. A cold air guide member for guiding the shelf plate below is arranged. By doing in this way, the cold air taken in from the upper part of the shelf board can be discharged from the slit, and the cold air can be sequentially supplied to the lower shelf board of the shelf board so that the temperature distribution in the storage 17 is uniform. can do.

It is a freezer longitudinal cross-sectional view in Embodiment 1 of this invention. It is an upper stage external appearance figure in Embodiment 1 of this invention. It is an outermost container external view in Embodiment 1 of this invention. It is sectional drawing of the upper stage container and lowermost stage container in Embodiment 1 of this invention. It is a cold air guide member attachment perspective view in Embodiment 1 of this invention. It is a cold air guide member attachment longitudinal cross-sectional view in Embodiment 1 of this invention. It is a lowest stage container arrangement | positioning in Embodiment 1 of this invention. It is a cold air guide part integral formation longitudinal cross-sectional view in Embodiment 1 of this invention. It is a partition plate principal part enlarged view in Embodiment 2 of this invention. It is a partition plate longitudinal cross-sectional view in Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Freezer main body, 2 Outer box, 3 Inner box, 4 Door, 5 Compressor, 6 Cooler, 7 Cooling air circulation fan, 8 Upper container, 8a Bottom slit, 8b Bottom slit, 8c Rear slit, 9 Bottom container, 9a bottom slit, 9b bottom slit, 9c claw, 10 cold air outlet a, 11 cold air outlet b, 12 cold air return port, 13 cold air guide member, 13a hard part, 13b soft part, 14 foam insulation, 15 partition plate, 15a guide plate, 16 cooler room, 17 storage, 18 shelf plate, 18a shelf front slit, 20 bottom cold passage, 21 fan grill, 22 front cold, 23 rear cold, 24 back cold, 25 recess.

Claims (8)

A cooler chamber formed on the back wall side of the inner box and provided with a cooler; and
A storage that is formed on the front side of the inner box and stores a plurality of storage containers for food, etc.
A partition plate made of a heat insulating material and partitioning the inner box into a cooler chamber and the storage;
In a freezer comprising a cool air circulation blower for supplying and circulating cool air generated by a cooler in the cooler chamber from above to below in the storage,
A freezer comprising a cold air guide member for closing the space between the container and the partition plate and guiding cold air into the container at an upper part of the back of the container disposed at the lowest stage of the storage.   The cold air guide member includes a hard portion and a soft portion formed by extrusion molding of vinyl chloride, and an attachment portion is formed in the hard portion to hold the flange at the upper back of the container back and forth. 2. The freezer according to claim 1, wherein a fin shape is formed to guide cold air.   A container in which the fin-shaped portion of the soft part of the cold air guide member is brought into close contact with the partition plate by surface contact, and the cold air flowing between the partition plate and each container from the upper part in the storage is disposed at the lowest stage of the storage The freezer according to claim 2, wherein the freezer is guided to the side.   The freezer according to claim 1, wherein the cold air guide member is formed integrally with the partition plate.   A fin-shaped guide plate for guiding cold air to the partition plate is formed, the guide plate is brought into surface contact with the flange at the upper back of the lowermost container, and the cool air flowing between the partition plate and each container from the upper part in the storage The freezer according to claim 4, wherein the container is guided to the lowermost container side.   A slit is formed in the bottom of the lowermost container, and the cold air generated in the cooler chamber is supplied and circulated from the top by the cool air circulation blower, and the cold air is taken in from the top of the container and discharged from the bottom slit. The freezer according to claim 1, wherein the cool air is returned to the cooler through the cool air passage.   A slit is formed in the bottom and back of each container arranged in a plurality of stages on the upper part of the lowermost container, the cold air taken in from the upper part of each container is discharged from the slit, and the cold air is supplied to the lower container in order. The freezer according to any one of claims 1 to 6, wherein: A cooler chamber formed on the back wall side of the inner box and provided with a cooler; and
A storage that is formed on the front side of the inner box and includes a plurality of shelves,
A partition plate made of a heat insulating material and partitioning the inner box into a cooler chamber and the storage;
In a freezer comprising a cool air circulation blower for supplying and circulating cool air generated by a cooler in the cooler chamber from above to below in the storage,
A slit is formed in each shelf plate, and a cold air guide member for closing the space between the shelf plate and the partition plate and guiding cool air below the shelf plate is disposed on the shelf plate arranged at the bottom of the storage A freezer characterized by that.

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