KR890001329B1 - Refrigerator - Google Patents

Abstract

A refrigerator includes a freezing compartment (6) and a refrigerating compartment (7) having a duct (13) passing through an insulation layer (4) of the rear wall. A cold air chamber (26) which is formed as an approx. enclosure is provided on the upper portion of the refrigerating compartment with an insulating partition (23). The cold air chamber is arranged with clearances between the side walls of the chamber and those of the refrigerating compartment, as well as between the bottom of the chamber and the insulating partition. Cold air from the cooler is fed into the refrigerating chamber through the holes (27) formed on the partition via cold air passageways (50) prepared outside of the chamber.

Description

Refrigerator

1 is a perspective view showing the opening and closing door of the refrigerator.

2 is an enlarged side cross-sectional view of the upper part of the refrigerator compartment.

3 is a perspective view of a low temperature room.

4 is an exploded perspective view of the low temperature room

5 is a perspective view showing a part of the upper part of the refrigerating chamber.

6 is a cross-sectional view taken along the line A-A 'in FIG.

7 is a cross-sectional view taken along the line B-B 'of FIG.

8 is a cross-sectional view taken along the line C-C 'of FIG.

* Explanation of symbols for main parts of the drawings

1: refrigerator 2: outer case

3: inner case of freezer and refrigerator compartment 5: partition wall

6: interior room 7: refrigeration room

8: vegetable chamber 14: discharge port

15: damper the thermostat 16: recessed part

17: temperature sensing unit 18: baffle tube

19: damper case 23: bottom plate

24: low temperature room case 25: mounting plate

26: low temperature room 28: upper wall

29, 30, 37, 38: left and right side walls 39: rear wall

40: inclined portion 41: engagement hook

43: rotary lid 44: fan-shaped left and right side walls

50: cold air passage 51: inlet

54: manual damper 55: damper plate

67: fitting hook 69: inlet gutter

72: hook hook

The present invention relates to a refrigerator for cooling a room by supplying cold air in a storage compartment, to form a substantially enclosed space in the storage compartment, to simplify the configuration of the cold air passage that indirectly cools the inside, and to improve temperature control. Ham is the focus.

Conventionally, in this type of refrigerator, a damper thermostat which senses the temperature in the refrigerating compartment and automatically opens and closes the cold air discharge port to the refrigerating compartment is usually installed on the upper wall of the interior chamber.

In the refrigerating chamber, cooling is usually maintained at about +3 占 폚 to +5 占 폚 under the control of the damper thermostat.

Here, foods that require relatively low-temperature cooling, such as growth and fresh fish, such as 0 ° C to -5 ° C, are conventionally provided with a dish-shaped container in front of the damper thermostat, and damped into the container from the upper opening of the container. The cold air passing through the summer stat is led upward and introduced in a relatively large amount to form a low temperature space and to store the above-mentioned food in this container.

However, in such a configuration, since the food is directly exposed to a large amount of cold air, there is a risk that the quality is degraded by drying. For this reason, it is considered to form a generally closed space in the refrigerating compartment to prevent such drying, to form a cold air passage on the outside, and to supply the cold air to the cold air passage to cool the inside indirectly, but the cold air is approximately uniform in the cold air passage. In order to cool the above-mentioned space without smearing through the above-mentioned space, there was a drawback in that the workability due to the assembly manufacturing was complicated as a complicated duct structure.

An object of the present invention is to simplify the configuration of the cold air passage of the refrigerator which indirectly cools the inside by forming a substantially enclosed space in the storage compartment and at the same time make the temperature controllability good.

In order to reduce the conventional disadvantages, the present invention provides a low temperature room that is substantially sealed in a refrigerating chamber that is opened in front of the refrigerator, insulates other storage compartments with the low temperature chamber, and insulates it with a heat insulating separator, between the refrigerating chamber and both walls of the cold chamber. In the following, a cold air passage is formed to supply cold air to the cold air passage, and at the same time, a cold air passage for introducing the cold air into the other storage space described above is described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing the opening / closing doors 9 and 10 of the refrigerator 1 in a state where the refrigerator 1 has a heat insulating material 4 between the inner case 3 of the synthetic resin of the outer case 2 of the steel sheet. The inside of the refrigerator 1 is partitioned up and down by the partition wall 5, and a freezer compartment 6 is cooled at a freezing temperature and a refrigerating compartment 7 is maintained above the freezing point. have.

In the lower part of the refrigerating chamber 7, a substantially enclosed vegetable chamber 8 is formed, and each of the opening and closing doors 9, 10, 11 is provided.

2 is an enlarged side cross-sectional view of the upper part of the refrigerating chamber 7, in a refrigeration cycle installed in a cooling chamber (not shown) formed inside the heat insulating material 12 filled in the wall 5 or on the rear surface of the freezing chamber 6. Air cooled by an included cooler (not shown) is accelerated by a blower (not shown), guided by a duct 13 passing through the heat insulating material 4 to the refrigerating chamber 7, and the refrigerating chamber 7 ) Is introduced from the discharge port 14 formed in the back wall of the inner case 3 near the partition wall 5, and in the penetration 16 formed slightly downward from the discharge port 14, the damper dustus. The tart 15 was stored. It is a damper demolition state that I stored and stored. The damper thermostat 15 has a temperature sensing unit 17 for sensing a temperature in the refrigerating chamber 7 and a baffle pipe 18 for inclining upwardly inclined upon opening to open and close the discharge port 14. The discharge port 14 is opened at the set upper limit temperature in (7), the discharge port 14 is closed at the lower limit temperature, and the inside of the refrigerating chamber 7 is automatically adjusted to a substantially constant temperature. The damper case 19 is mounted on the upper wall of the refrigerating chamber 7 so as to cover the damper thermostat 15 to cool the heat insulating material formed in the plastic case, and communicates with the duct 13 inside the baffle pipe 18. Part of the cold air directed toward the inclined upper part by colliding with the air hole 21 and the baffle pipe discharged from the discharge port 14 through which the space 20 and the space 20 communicate with the refrigerating chamber 7 on both sides. It has an induction duct 22 which guides it as it is.

An upper portion of the inside of the refrigerating chamber 7, which is the front of the damper case 19, and immediately below the partition wall 6, a base plate 25 accommodated in the bottom plate 23, the low temperature chamber case 24, and the low temperature chamber case 24. The low temperature chamber 26 which is generally sealed from the back is formed, the bottom plate 23 is filled with a heat insulating material therein, and a plurality of perforations 27 are provided. In addition, the left and right sides 29 and 30 of the low temperature case 24 are spaced apart from each other with the inner case 3 as the eighth degree, and the lower edges of the left and right side walls 29 and 30 are again the legs 65. The upper wall 28 and the partition wall 5 are also spaced apart from the bottom plate 23 by the upper wall 28, so that the upper wall 28, the left and right side walls 29, 30 on the outside of the case 24. And a series of cold air passages 50 are formed between each of the bottom plates 23. An inlet 51 is formed in a portion corresponding to the front of the induction duct 22 of the damper case 19 at the center of the rear plate 31 located behind the upper wall 28, whereby the induction duct is formed. The cold air discharged from the gas flows into the cold air passage 50 and flows forward through the upper wall 28 by the force at the time of discharge, and is classified into left and right.

Since the cold air is at a low temperature, the specific gravity is heavy, and then flows along the left and right side walls 29 and 30, and some flow into the lower surface of the mounting plate 35 and flow into the refrigerating chamber 7 from the perforation 27. Due to the flow of cold air, the inside of the low temperature chamber 26 is cooled indirectly from the bottom of the upper wall 28 and the left and right side walls 29 and 30 and the bottom plate 25. Thereby, drying is prevented because it is not directly affected by the cold air stored therein. Here, the cold air introduced into the cold air passage 50 is discharged from the cold air controlled to be opened and closed by the damper thermostat 15 that operates according to the temperature of the cold compartment 7, even when the cold air is returned to the cold compartment 7. There is no supercooling inside.

This is because if the temperature of the refrigerating chamber 7 decreases for some reason, the damper thermostat 15 closes the cold air discharge port 14 and the cold air supply itself in the cold air passage 50 stops.

The cold air flowing in the refrigerating chamber 7 returns to the cooling chamber not shown in the inlet 52 together with the cold air as the first time in the refrigerating chamber 7, so that a return passage for the cold air passing through the cold air passage 50 is opened. It does not necessarily need to be formed.

In addition, the upper four corners are formed with a fitting hole 66, the front portion is formed with a fitting hook (67) protruding in both sides, the engaging hook (67) integrally extending inwardly the hand hook portion (68) Formed. The cold compartment case 24 includes a rear plate 31 which forms a rear surface with the upper wall 28 and the left and right side walls 29 and 30 and a closed front surface 32 protruding outward from the above-described face walls on both the upper and both sides. (33) and (34), and is open to the front downward.

The closing plate 32 is formed with a locking plate 64 protruding upward, and four legs 65 protruding downward are formed at the lower edges of the left and right side walls 29 and 30. The rail 35 bent inward is formed, and the mounting plate 25 is supported by the sliding material on the rail 35 and stored in the low temperature chamber case 24. Placement plate 25 has a handle portion 36 at the front edge, left and right side walls 37, 38 and a back wall 39, and a slope 40 at the front and rear sides. And engaging hooks 41 protruding on both sides at rear ends thereof. The engagement hook 41 is formed at the tip of the elastic piece so as to have elasticity in the left and right direction, and has a shape inclined inward from the front side to the deep side.

The low temperature chamber case 24 is formed with projections 42 inclined toward the front in the left and right side walls 29 and 30, and the engaging plate 25 is generally pulled out from the low temperature chamber case 24. 41) abuts against the projection 42 to prevent the fall by excessive withdrawal.

The operation of attaching the mounting plate 25 into the low temperature chamber case 24 first involves inserting the mounting plate 25 along the rail 35, so that the engagement hook 41 abuts on the projection 42. It is very easy to mount because it is achieved by sliding each inclined surface by pushing-in, and engaging ring 41 repositions inward and rides over.

The lower opening of the cold compartment case 24 is closed by housing the mounting plate 25, but the front opening is closed by the rotary lid 43.

The rotary lid 43 is made of a transparent resin and is generally formed of a fan-shaped left and right side wall 44 and a cross section having a generally arc-shaped front surface 45.

In the center of the fan-shaped left and right side wall 44, projections 46 projecting outward are formed, and the projections 46 are formed on the left and right side walls 29 of the low-temperature case 24 in front of the projections 42 ( The hole 47 formed in 30 is engaged with the rotating material.

At this time, the front surface 45 is located in the front opening of the low temperature chamber case 24 and closes the opening. Further, the front surface 45 protrudes inward and is located in front of the inclined portion 40 of the mounting plate 25. A projection 48 is formed. Accordingly, the inclined portion 40 abuts on the protrusion 48 by pulling the mounting plate 25 in front of the self, and again the protrusion 48 is raised along the inclined portion 40 so that the rotary lid 43 is shown in FIG. 2. As the clockwise direction is rotated, the front surface 45 is moved upward, and the mounting plate 25 is drawn out, and at the same time, the front opening of the cold compartment case 24 can be easily opened to easily take in and out of the article.

Since the center of the rotating lid 43 is positioned forward from the imaginary protrusion 46, when the mounting plate 25 is inserted into the low temperature chamber case 24 again, the protrusion 48 is lowered along the inclined portion 40. Since the rotary lid 43 rotates in the counterclockwise direction in FIG. 2, the rotary lid 43 closes the front opening of the low temperature chamber case 24.

Therefore, in the low-temperature chamber 26, the delivery of the article can be easily taken out by placing the mounting plate 25 in front of him, and the rotary lid 43 is opened and closed in conjunction with the mounting plate 25. I can reduce the trouble of opening and shutting.

In front of the upper wall 28 of the cold compartment case 24, a curved surface portion 28a is formed so as not to be supported when the front surface 45 of the rotary lid 43 moves upward.

The front 45 of the rotary lid 43 does not interfere with the delivery of food stored under the curved portion 28a when opened.

At both bottom walls of the inner case 3 at predetermined intervals below the partition wall 5, recessed recesses 69 are formed in front and rear, and the blocking plate 33 is continuously disposed above the front part of the recessed recess 69. A concave indentation 70 conforming to the cross-sectional shape of 34 is formed.

The recessed part 71 is formed in the lower part of the front part of the indentation trough 69, and the L-shaped latch hook 72 protruding forward is protruded in the front part of the lower surface of the partition wall 5. As shown in FIG.

The left and right ends of the bottom plate 23 are mounted on both side walls of the inner table 3 in a state where the legs 65 of the low temperature chamber case 24 are inserted into the fitting holes 66 of the bottom plate 23 from above, and both are combined. It is inserted and engaged from the front into the concave inlet 69 extending in the front and back, and the fitting hook 37 is fitted into the concave portion 710 of the compression wall of the inner case 3 and is mounted in the refrigerating chamber 7.

At this time, the back plate 31 of the low temperature chamber case 24 is located in front of the damper case 19 so as to partition the upper space from the bottom plate 23 and the inner surface of both side walls of the inner case 3. Is facing.

In addition, the closing plate 32 abuts on the lower surface of the partition wall 5 so that the retaining plate 64 is engaged and fixed from the front to the locking hook 72 on the lower surface of the partition wall 5, and the blocking plate 33, ( 34 abuts the front surface of the penetration part 7 of the inner surface of the inner side of the inner side 3, and the space above the bottom plate 23 becomes a partition back and forth except the front opening of the low temperature chamber case 24. As shown in FIG.

In addition, the lower edges of the left and right side walls 29 and 30 of the low temperature chamber case 24 are spaced from the bottom plate 23 by the legs 65 and the upper wall 28 is also spaced from the partition wall 5. Therefore, the upper wall 28, the left and right side walls 29, 30 and the rest plate 25 of the low temperature chamber case 24 and the inner wall 23, the inner case 23 and the bottom plate 23 around the lower surface The cold air passage 50 is formed in between.

An inlet 51 is formed in a portion corresponding to the front of the induction duct 22 of the damper case 19 at the substantially center portion of the rear plate 31 located behind the upper wall 28, whereby the induction duct is formed. The cold air discharged from the (22) flows into the cold air passage (50), flows forward through the upper wall (28), and then splits left and right, and passes through the left and right side walls (29) (30), a part of which goes to the lower surface of the mounting plate (25). It flows in and flows down into the refrigerating chamber (7) from the perforation (27).

By the flow of cold air, the inside of the low temperature chamber 26 is indirectly cooled from the top wall 28 and the left and right side walls 29 and 30 and the bottom surface of the mounting plate 25.

This prevents the drying of articles stored therein. Since the cold air introduced into the cold air passage 50 is passed through the damper thermostat 15, even if this is returned to the cold room 7, the inside of the cold room 7 is not supercooled.

In addition, the cold air in the refrigerating chamber 7 is returned from the suction port 52 to a cooling chamber not shown.

A shaft 53 protrudes from the upper wall 28 of the cold compartment case 24, and a manual damper 54 is freely driven in the horizontal direction in the cold air passage 50. The passive damper 54 is generally located at the center of the damper plate 55 in front of the inlet 51 at one end and the operation plate 56 through which the blocking plate 32 penetrates forward in multiple stages. Has)

By arbitrarily making this passive damper 54 arbitrary, the amount of cold air which flows into the cold air passage 50 can be changed suitably.

That is, when storing articles which need to be stored at relatively low temperatures (for example, about -5 ° C) such as growth and fresh fish, the introduction port 51 may be opened as the damper plate 55.

In the case of articles other than those described above, for example, articles stored at about 0 ° C, the inside of the low temperature chamber 26 can be cooled to an appropriate temperature by half opening or closing the introduction port 51.

In addition, since the heat insulating material exists in the bottom plate 23, the low temperature chamber 26 is hardly affected by the temperature of the refrigerating chamber 7 (for example, about + 3 ° C), and independent temperature control is possible.

At the end of the curved portion 28a of the upper wall 28 of the low temperature chamber case 24, a stone wall 60 is formed which protrudes upwards and extends from side to side to reach the bottom surface of the partition wall 5, The upper wall 28 itself is also inclined upwardly as a whole.

Therefore, since the cold air discharged forward from the inlet 51 is distributed left and right without biasing the front part of the low temperature chamber 26, only the front part is not supercooled.

In addition, since cold air does not reach the curved surface portion 28a, freezing pillars and the like do not occur on the lower surface of the curved surface portion 28a, so that an accident such as the rotary lid 43 is supported is prevented and operates smoothly.

Even more immediately after exiting the inlet 51, the cold air flows to the left and right, so as to flow to the left and right side walls 29 and 30 substantially uniformly, and the inside is cooled evenly.

An opening 63 is formed in the vicinity of the shaft 53 of the stone wall 60 to allow the operation of the passive damper 54, and the damper plate 55 is formed from the shaft 53 of the manual damper 54 by the opening 63. The part on the side is always pushed upwards.

The upper edge of the inlet 51 is integrally formed with a contact plate 61 extending forwardly at a distance from the upper wall 28, and the damper plate 55 is engaged with the contact plate 61 below. The upper surface of the damper plate 55 always slides on the lower surface of the damper plate 55 freely.

Here, the damper plate 55 forms an arc shape substantially the same as a rotating circle, and is substantially the same shape as the inlet 51.

In addition, at the lower edge of the inlet 51, a protruding wall 62 is formed immediately behind the damper plate 55 and protrudes upward. As a result, the upper part of the damper plate 55 is sealed by press-contact with the contact plate 61, and the lower part is sealed by the protruding wall 62, so that cold air is prevented from leaking. The amount of cold air from 51 can be reliably controlled.

A part of the cold air discharged from the discharge port 14 of the duct 13 flows out from the left and right windows 21 and flows below the space portion behind the back plate 31 of the low temperature chamber case 21 to circulate in the refrigerating chamber 7. Cool the room.

From the damper thermostat 15, the adjustment shaft 57 extends forward through the damper case 19, and the spigot 58 is picked up at a portion located on the outer surface of the damper case 19 at the tip of the shaft 57. ) Is mounted.

Here, the bottom plate 23 or the back plate 31 is in front of the damper case 19, that is, the house is shaped to hide the faucet 58 from the front, so that the adjustment of the set temperature of the damper thermostat 15 This is impossible.

For this reason, the house has integrally formed the operation part 58a extended downward from the bottom plate 23 in the spigot 58, and improves operability.

The assembling of the low temperature chamber case 24 and the bottom plate 23 is easily achieved by inserting the bottom plate 23 into the inlet trough 69 and holding the handrest portion 68 in the refrigerator compartment 7 when combined. .

On the contrary, when detaching from the refrigerating compartment 7, it can be detached by grasping the hand part 68 and pulling it in front of him to release each engagement.

According to the present invention as described above, the cold air passage outside the cold chamber is formed between the inner wall surface of the refrigerating chamber, and since the cold air passing through the cold air passage is introduced into the cold-jail chamber from the air hole, the special duct member and the return duct for the cold air passage. The duct structure, which becomes unnecessary, is very simplified, the number of parts is omitted, and the cost is low. In addition, a series of cold air flows in the cold air passage can be achieved by the natural flow of cold air with a heavy specific gravity.

In particular, in the insulating partition member, the low temperature chamber is not affected by the temperature from the refrigerating chamber, so that the low temperature chamber can be indirectly cooled, and the low temperature chamber is cooled without staining from the left and right sides and the bottom surface. There will be advantages such as no wrong temperature and no unreasonable occurrence.

Claims (1)

By supplying cold air into the refrigerating compartment 7 opened in the front and cooling the inside of the refrigerating compartment 7, the cold compartment 26 installed in the upper part of the electrical refrigerating compartment 7 and substantially sealed, and the electrical refrigerating chamber below therefrom ( The heat-insulating film is positioned between the member 23 and the member 23, and between the left and right side walls 29 and 30 of the low temperature chamber 26 of electricity and the inner case 3 of the refrigerating chamber 7 of electricity. In forming a predetermined interval between the low temperature chamber 26 and the heat insulating partition member 23, the series of cold air passages 50 are formed outside the electrical low temperature chamber 26 and the cold air passage 50 is formed. ) To supply cool air from the cooler, and to allow the cool air that has passed through the cool air passage 50 to flow into the electrical refrigerating chamber 7 below from the through hole 27 formed in the electrical insulating partition member 23. Refrigerator characterized by.

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