JPH08296953A - Refrigerator - Google Patents

Abstract

PURPOSE: To prevent a duct cover from being projected into a refrigerator, increase an effective inner volume of the refrigerator and make a preferable outer appearance of the refrigerator in which an inner wall surface of the refrigerator is provided with the duct cover covering a duct forming member. CONSTITUTION: A recessed part 34 is formed at an inner wall surface of a refrigerator in an outward direction. A duct forming member 33 is stored in the recessed part 34 and then a duct cover 30 is installed flat at the inner wall surface of the refrigerator. A damper device for supplying and adjusting cold air against a duct 32 formed of the duct forming member 33 under an arrangement in which a buffle plane of a damper plate is directed to the refrigerator and a cold air discharging port is positioned outside the refrigerator. The duct 32 is communicated with the cold air discharging port of the damper device, thereby the duct cover can be made in a manner that its lower-most part in contact with the damper device is prevented from being projected into the refrigerator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having a duct cover on the inner wall surface of a refrigerator.

[0002]

2. Description of the Related Art Conventionally, refrigerators having a duct cover on the inner wall surface of the refrigerator have been provided. 8 to 11 show a conventional structure of this, in which a duct cover 2 is provided on the inner wall surface portion inside the refrigerator (in this case, the refrigerating compartment 1). As shown in FIG. 9, the duct cover 2 covers a duct forming member 4 which forms, for example, two ducts 3, and the duct forming member 4 is pressed against the inner wall surface of the deep inside of the refrigerating chamber 1. For example, 3
It is attached by an individual screw 5 (see FIG. 8) and projects inward of the refrigerating compartment 1.

Further, as shown in FIG. 10, a damper device 6 for adjusting the supply of cold air is provided in the innermost portion of the lowermost portion of the refrigerating chamber 1 with respect to the duct 3. This damper device 6
Although not shown in detail, the damper plate 7 is operated by a gas pressure that changes according to the temperature of the refrigerating compartment 1 or an operation of a motor.
To open and close the opening / closing port 9 connected to the cooler chamber (not shown) by the passage 8 shown in FIG.
When the temperature of the refrigerating compartment 1 is equal to or higher than a predetermined temperature, the cold air is supplied, and when the temperature is equal to or lower than the predetermined temperature, the supply of the cold air is shut off.

In the damper device 6, however, a baffle surface 10 which comes into contact with and separates from the opening / closing port 9 of the damper plate 7 is directed to the outside of the refrigerator at the innermost portion of the cold storage chamber 1, and the cold air discharge port 1 is provided.
1 is provided so as to be located inside the refrigerator, and the duct 3 is connected to the cold air discharge port 11 thereof. Therefore, the duct forming member 4 and the duct cover 2 are both the lowermost part 4
a and 2a are projected to the inside of the refrigerator in accordance with the position of the cool air discharge port 11, and this is a projecting portion on the damper device 6 in the refrigerator.

Further, on the rear surface of the refrigerating compartment 1, the lead wire 1 for connecting the damper device 6 and the power circuit board 12 (see FIG. 10) arranged on the upper rear surface outside the refrigerator.
3 (see FIG. 9) are arranged along the duct 3. The duct forming member 4 is vertically overlapped and joined to the damper device 6, and in this state, the damper device 6 is tightened by a screw 14 (see FIG. 11) advanced from the front inside the refrigerator. It has been fixed.

[0006]

In the case of the above-mentioned conventional apparatus, since the duct cover 2 projects inward of the refrigerating chamber 1, the effective internal volume for storing the articles in the refrigerator is reduced, and the appearance is also reduced. However, there is a problem in that it gives a feeling of pressure to the user and is not preferable.

Further, the lowermost portion 2a of the duct cover 2 also protrudes inward of the refrigerating chamber 1, which reduces the effective inner volume in the refrigerator and is not preferable in appearance, as described above. Had.

Further, the refrigerating chamber 1 in which the lead wire 13 is arranged
The back surface of the is a portion to be filled with the heat insulating material 15. Since the heat insulating material 15 is generally filled in by being poured in the state of the undiluted solution and foaming, the lead wire 13 is When moved, the duct cover 2 is displaced from the back side position to another position on the back surface of the refrigerating chamber 1 as shown by an arrow and a chain double-dashed line in FIG. 1 has a problem that the wall surface portion of the refrigerating compartment 1 is deformed by being applied.

With respect to the problem of this deformation, conventionally, assuming that the lead wire 13 is displaced, a reinforcing plate such as an iron plate is attached to the heat insulating material 15 side (inner box rear surface) of the partial area. As a result, the cost of the refrigerator was increased.

The present invention has been made in view of the above circumstances. Therefore, an object of the present invention is to provide a refrigerator which can increase the effective internal volume in the refrigerator and can be preferable in terms of appearance, and at the same time, the reed. It is an object of the present invention to provide a refrigerator that can solve the problem of deformation of the wall surface in the refrigerator due to the wires without requiring a special reinforcing plate.

[0011]

In order to achieve the above object, in a refrigerator according to the present invention, firstly, a duct forming member for forming a duct for supplying cold air into the refrigerator, and this duct forming member. And a duct cover for covering the inside of the refrigerator, and a concave portion formed by recessing outward on the inner wall surface portion of the refrigerator, and the duct forming member is housed in the concave portion to form the duct cover. It is characterized in that it is provided in a flat shape on the inner wall surface portion in the refrigerator.

Secondly, in the refrigerator of the present invention, the duct cover has an engaging portion at an edge portion thereof, and the concave portion of the inner wall surface of the refrigerator has an engaging portion. It is characterized in that the duct cover is attached by locking the locking portion to.

Thirdly, the refrigerator of the present invention is provided with a damper device for adjusting the supply of cool air to the duct formed by the duct forming member.
It is characterized in that the baffle surface of the damper plate is directed toward the inside of the refrigerator, the cold air discharge port is provided outside the refrigerator, and the duct is connected to the cool air discharge port of the damper device.

Fourthly, the refrigerator of the present invention is characterized in that a lead wire housing portion for housing a lead wire arranged along the duct is formed in the recess of the inner wall surface of the refrigerator. Fifthly, the refrigerator of the present invention is characterized in that the heat dissipation pipe of the refrigeration cycle is arranged in the heat insulating wall at a position avoiding the back side of the concave portion of the inner wall surface of the inside of the refrigerator.

[0015]

According to the first means, the duct forming member is housed in the recess of the inner wall surface of the inside of the refrigerator, and the duct cover is provided flat on the inner wall surface of the inside of the refrigerator. It does not project into the refrigerator.

According to the second means, since the duct cover is attached to the inner wall surface of the inside of the refrigerator by locking the end portions by the locking portion and the locked portion, the duct cover is slightly deformed. Even if there is, it can be corrected and mounted in close contact with the inner wall surface of the refrigerator. According to the third means, since the cool air discharge port of the damper device is located outside the refrigerator, both the duct forming member and the duct cover can be provided without taking the form of projecting the lowermost portion to the inside of the refrigerator. .

According to the fourth means, since the lead wire is housed in the lead wire housing portion, it is not moved by the foaming pressure of the heat insulating material. According to the fifth means
The heat radiating pipe of the refrigeration cycle is arranged in a large thickness portion of the heat insulating wall, avoiding the back side of the concave portion of the inner wall surface of the refrigerator.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, FIG. 2 shows a main body cabinet 21 of the refrigerator, which includes an outer box 22 and an inner box (see FIG.
The innermost box 23 for the refrigerating room and the innermost box 2 for the freezing room in the middle
(Only 4 is shown), the heat insulating material 25 is filled in by being injected and foamed in the state of undiluted solution.

Refrigerating room 2 constituted by the inner box 23 for the refrigerating room
The rack 6 is provided with a plurality of shelves 27, and a chilled partial chamber 28 and a water supply tank chamber 29 for an ice maker are provided at the bottom. In addition, a duct cover 30 is provided in the central portion of the back of the refrigerating compartment 23. The duct cover 30 is for supplying cold air sent from a cooler room (not shown) to the refrigerating room 26, and has cold air outlets 31 corresponding to the respective stages of the shelves 27, and has a rear surface portion. As shown in FIG. 1, a duct forming member 33 forming a plurality of vertically extending ducts 32 is attached.

On the other hand, the inner box 23 forming the inner wall surface of the refrigerating chamber 26 is formed with a recess 34, and the duct forming member 33 is housed in the recess 34 so that the duct cover 30 itself is provided. It is attached so as to form a flat shape. FIG.
5 and 5 show a mounting structure of the duct cover 30 to the inner box 23. As is apparent from FIGS. 4 and 5, the end portion of the duct cover 30 is locked with an extra contact portion 30a. For example, four elastic claw portions 35 are formed at the inner box 23, and the same number of claw receiving concave portions 36 as locked portions are formed on both side edges of the concave portion 34 in the inner box 23. The elastic claw portions 35 are locked to the respective 36. or,
A mounting hole 37 is formed at one location in the central portion of the duct cover 30. From this mounting hole 37 to the inner box 23, one screw 3 is attached.
8 is screwed in and tightened, and thus the duct cover 30 is attached to the inner box 23.

The duct forming member 33 makes the recess 34 of the inner box 23 shallow (the heat insulating material 25 of the main body cabinet 21).
The thickness T1 (see FIG. 1) is made smaller than the thickness T2 (see FIG. 9) of the conventional duct forming member 4 in order to keep the thickness of the remaining heat insulating wall due to The width W2 of the conventional duct forming member 4 is made larger to ensure the necessary ventilation cross-sectional area of the duct 32. In this relationship, the width W3 of the duct cover 30 is the same as the width W4 of the conventional duct cover 2. It has been set larger.

A damper device 39 is provided at the bottom of the lowermost portion (chilled partial chamber 28) of the refrigerating chamber 26 shown in FIG. 3 with respect to the duct 32. This damper device 3
Although not shown in detail in FIG. 9, the damper plate 40 is operated by gas pressure or motor operation which changes according to the temperature of the refrigerating chamber 26, and a cooler chamber (not shown) by a passage 41 shown in FIGS. 3 and 6. The opening / closing port 42 connected to the (1) is opened / closed, whereby the cold air is supplied when the temperature of the refrigerating chamber 26 is equal to or higher than a predetermined temperature, and the supply of the cold air is interrupted when the temperature is equal to or lower than the predetermined temperature.

This damper device 39 is used for the damper plate 4
The baffle surface 43, which comes into contact with and separates from the opening / closing port 42 of 0, faces the inside of the refrigerator, and the cool air discharge port 44 is located outside the refrigerator, and is provided in the innermost portion of the lowermost portion of the refrigerating chamber 26. The duct 32 communicates with the outlet 44. In this relationship,
Both the duct forming member 33 and the duct cover 30 are such that the lowermost portions 33a and 30b do not project to the inside of the refrigerator like the conventional duct forming member 4 and the duct cover 2.

The duct forming member 33 is joined to the damper device 39 so as to overlap in the front-rear direction. In this state, the damper device 39 is fixed by tightening the screw 45 advanced from the front inside the refrigerator. ing.

Further, in FIG. 1, a rear (outside of the cabinet) small recess 46 as a lead wire storage portion formed on the side of the storage portion of the duct forming member 33 of the recess 34 of the inner box 23.
Is also shown, and several lead wires 48 for connecting the damper device 39 and the power supply circuit board 47 (see FIG. 3) arranged on the upper rear side outside the cabinet along the duct 32 are inserted into the wire. It is tied with a vinyl band, etc., and then stored and arranged.

In addition, in the heat insulating wall of the main body cabinet 21, a part of the condenser of the refrigeration cycle is provided at the back side positions of both side end portions having large thickness, avoiding the back side of the recess 34 of the inner box 23. The heat radiation pipe 49 is provided. In addition, FIGS. 2 to 4 show an interior lamp cover 50 for illuminating the refrigerating compartment 26 provided at the uppermost portion of the duct cover 30.

By the way, in the case of the configuration as described above,
The duct cover 30 has the duct forming member 33 located on the back side thereof housed in the recess 34 formed in the inner box 23 forming the inner wall surface of the refrigerating chamber 26 and attached to the inner box 23. The cover 30 itself is flatly attached to the inner wall surface of the refrigerating chamber 26, and does not project into the refrigerator unlike the conventional duct cover 2. Thus, it is possible to increase the effective internal volume provided for storing the articles in the refrigerator, and it is possible to avoid giving a feeling of pressure to the user in terms of appearance, which is preferable.

Further, in the case of the above construction, the duct cover 30 is fixed to the inner box 23 by engaging the end portions with the elastic claw portions 35 which are the locking portions and the claw receiving concave portions 36 which are the locked portions. Since it is attached, even if the edge portion is likely to be deformed, it can be corrected by the engagement and attached. Therefore, the duct cover 30 can be attached in a close contact state without floating from the inner wall surface portion of the refrigerating chamber 26, which is more preferable in appearance. Moreover, in this case, the attachment is performed by the elastic claw portion 35 and the claw receiving concave portion 3
Since the locking with 6 is mainly performed and the screw 38 is attached only at one place, the work can be facilitated, and further, the number of the screws 38 to be used can be reduced and the cost can be reduced.

In addition, the claw receiving concave portion 36 is formed in a so-called undercut shape, and although it is difficult to form it on the flat portion of the inner box 23, by forming it in the concave portion 34, It can be easily formed in combination with the molding of the recess 34 (generally vacuum molding). Further, in that case, the die cutting or the like can be easily performed by using a nesting die or the like that slides toward the central portion of the recess 34.

The damper device 3 for controlling the supply of cool air to the duct 32 formed by the duct forming member 33.
As for No. 9, the baffle surface 43 of the damper plate 40 is arranged so that the cold air discharge port 44 is positioned outside the cold store and the duct 32 is communicated with the cold air discharge port 44 of the damper device 39. As a result, the duct forming member 33 and the duct cover 30 are both attached to the lowermost portions 33a, 3
0b can be the same as the conventional duct forming member 4 and the duct cover 2 without any protrusion to the inside of the refrigerator. Therefore, the lowermost portion 30b of the duct cover 30 can also be configured so as not to project inward of the refrigerating chamber 26, whereby the effective internal volume in the refrigerator can be further increased and the appearance can be further improved. it can.

It should be noted that the duct forming member 33 is joined to the damper device 39 in the front-rear direction without being overlapped and joined in the vertical direction like the conventional duct forming member 4. In this state, the damper device 39 is tightened by the screw 45 advanced from the front inside the refrigerator. Therefore, the tightening force of the screw 45 effectively acts to strengthen the joining of the duct forming member 33. Therefore, even if the front and rear mounting positions vary, they can be tightly joined to each other, and it is possible to prevent the supply of cold air from leaking without requiring an extra sealing material.

Further, a small concave portion 46 as a lead wire accommodating portion is formed in the concave portion 34 of the inner box 23, and a damper device 39 portion along the duct 32 and a power source arranged on the upper portion of the rear surface outside the cabinet. Lead wire 4 for connecting to the circuit board 47 part
Since the lead wire 48 is housed and arranged, the lead wire 48 is not moved by the foaming pressure of the heat insulating material 25. Therefore, the lead wire 48 is kept at a position hidden by the duct cover 30 and the duct cover 30 is kept.
It is not necessary to deform the wall surface of the outer refrigerating chamber 26, and this can be achieved without requiring a reinforcing plate as in the conventional one, so that the cost of the refrigerator can be reduced. it can.

Further, in this case, since the small recess 46 can be formed within the depth of the recess 34 of the inner box 23, the small recess 4 can be formed.
It is possible to avoid that 6 is formed so as to project into the refrigerator, so that it is possible to increase the effective internal volume in the refrigerator and to avoid impairing the effect that is preferable in appearance. it can.

In addition, in the heat insulating wall of the main body cabinet 21, a part of the condenser of the refrigerating cycle is provided at the back side positions of both end portions having large thickness, avoiding the back side of the recess 34 of the inner box 23. Since the heat radiation pipe 49 is provided, it is possible to more reliably prevent the heat influence of the heat radiation pipe 49 from reaching the inside of the refrigerator in the portion where the thickness of the heat insulating wall is large.

In contrast to the above, FIG. 7 shows a second embodiment of the present invention, in which a small recess 50 as a lead wire accommodating portion which replaces the small recess 46 is adjacent to the recess 34 of the inner box 23. The small recess 46 is formed in the portion (covered by the duct cover 30).
It shows the one formed in the front (inside the refrigerator) opposite to the above. Even in this case, the lead wire 48 is housed and arranged in the small recess 50, so that the lead wire 48 is attached to the heat insulating material 2.
As described above, it is no longer possible to move under the foaming pressure of 5. Therefore, similarly to the above, the problem of the deformation of the wall surface portion of the refrigerating chamber 26 due to the lead wire 48 can be solved without requiring a special reinforcing plate or the like. In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and may be appropriately modified and implemented without departing from the scope of the invention.

[0036]

The refrigerator of the present invention is as described above and has the following effects. First, a duct forming member that forms a duct for supplying cool air to the inside of the refrigerator and a duct cover that covers the duct forming member inside the refrigerator are provided, and an inner wall surface of the inside of the refrigerator is concave outward. Since the duct forming member is housed in this recess and the duct cover is provided flat on the inner wall surface of the inside of the compartment, the duct cover is prevented from protruding into the inside of the compartment. As a result, the effective internal volume in the refrigerator can be increased and the appearance can be improved.

Secondly, the duct cover has an engaging portion at the end edge portion thereof, and the concave portion of the inner wall surface of the interior has an engaged portion, and the engaging portion is engaged with the engaged portion. By installing the duct cover, it is possible to mount the duct cover in a close contact state without floating from the inner wall surface of the inside of the refrigerator, which makes the appearance more preferable and facilitates the mounting work. Also, the cost can be reduced.

Thirdly, a damper device for controlling the supply of cold air to the duct formed by the duct forming member is provided, and the damper device is equipped with a baffle surface of the damper plate directed toward the inside of the refrigerator to cool the air. By providing the discharge port so that it is located outside the refrigerator and connecting the duct to the cool air discharge port of the damper device, the duct cover can be configured so that the lowermost portion does not project into the refrigerator. The effective internal volume can be further increased, and the appearance can be further improved.

Fourthly, by forming a lead wire accommodating portion for accommodating the lead wires arranged along the duct in the concave portion of the inner wall surface of the inside of the refrigerator, the lead wires are moved by receiving the foaming pressure of the heat insulating material. As a result, the problem of deformation of the wall surface in the refrigerator due to the lead wire can be solved without requiring a special reinforcing plate.

Fifth, by disposing the heat radiating pipe of the refrigeration cycle in the heat insulating wall at a position avoiding the back side of the recess of the inner wall surface of the inside of the refrigerator, it is possible to prevent the heat influence of the heat radiating pipe from reaching the inside of the refrigerator. It can be surely prevented.

[Brief description of drawings]

FIG. 1 is a transverse sectional view taken along the line AA of FIG. 2 showing a first embodiment of the present invention.

FIG. 2 is a cutaway perspective view of a refrigerator compartment of a refrigerator.

FIG. 3 is a vertical sectional side view of a refrigerator compartment of a refrigerator.

FIG. 4 is a perspective view of a duct cover portion.

5 is an enlarged cross-sectional view taken along the line BB of FIG.

FIG. 6 is an enlarged vertical side view of a damper device portion.

FIG. 7 is a partial equivalent view of FIG. 1 showing a second embodiment of the present invention.

FIG. 8 is a perspective view of a refrigerating compartment of a refrigerator showing a conventional example.

9 is an enlarged cross-sectional view taken along the line CC of FIG.

FIG. 10 is a view corresponding to FIG.

FIG. 11 is a view corresponding to FIG.

[Explanation of symbols]

23 is a refrigerating compartment inner box, 25 is a heat insulating material, 26 is a refrigerating compartment (inside the compartment), 30 is a duct cover, 30b is the lowermost part of the duct cover, 32 is a duct, 33 is a duct forming member, 34 is a recess, 35 Is an elastic claw (locking part), 36 is a claw receiving recess (locked part), 39 is a damper device, 40 is a damper plate, 4
3 is a baffle surface, 44 is a cool air discharge port, 46 is a small recess (lead wire storage part), 48 is a lead wire, 49 is a heat radiation pipe,
Reference numeral 50 denotes a small recess (lead wire storage portion).

Claims (5)

[Claims] 1. A duct forming member for forming a duct for supplying cold air to the inside of the refrigerator, and a duct cover for covering the duct forming member inside the refrigerator, and an outer wall surface of the inside of the refrigerator. A refrigerator comprising a recess formed by recessing, the duct forming member being housed in the recess, and the duct cover being provided flat on an inner wall surface of the refrigerator. 2. The duct cover has a locking portion at the edge,
The refrigerator according to claim 1, wherein the recess of the inner wall surface of the refrigerator has a locked portion, and the locking portion is locked to the locked portion, and the duct cover is attached. 3. A damper device for adjusting the supply of cool air to a duct formed by a duct forming member, wherein the baffle surface of the damper plate is directed toward the inside of the refrigerator, and the cool air discharge port is provided. Provided with an arrangement located outside the refrigerator,
The refrigerator according to claim 1, wherein the duct is connected to the cool air discharge port of the damper device. 4. The refrigerator according to claim 1, wherein a lead wire accommodating portion for accommodating a lead wire arranged along the duct is formed in the recess of the inner wall surface of the refrigerator. 5. The refrigerator according to claim 1, wherein the heat dissipation pipe of the refrigeration cycle is arranged in the heat insulating wall at a position avoiding the back side of the recess of the inner wall surface of the inside of the refrigerator.