JP2021050910A - refrigerator - Google Patents

Abstract

To enhance a degree of fixation of a pipe in a refrigerator including a heat insulation material on a back surface of an inner box forming a heat insulation box body.SOLUTION: A refrigerator according to an embodiment includes: a heat insulation box body having a storage room therein; a heat insulation material included on a back surface of an inner box forming the heat insulation box body; a pipe disposed in a portion of the back surface of the inner box where the heat insulation material does not exist; and a fixture which fixes the pipe to the portion of the back surface of the inner box where the heat insulation material does not exist. When viewed in a width direction of the heat insulation material, a portion, which holds the pipe, of the fixture overlaps with the heat insulation material.SELECTED DRAWING: Figure 2

Description

The present embodiment relates to a refrigerator.

Conventionally, the suction pipe that constitutes the refrigerating cycle of a refrigerator is piped over the entire back surface of the synthetic resin inner box that constitutes the heat insulating box, and is fixed by a claw or the like formed on the inner box. The degree of fixation of the suction pipe is enhanced by urethane foam that is injected and cured between the outer box and the inner box that constitute the heat insulating box.

However, in recent years, the heat insulating box of a refrigerator has been made thinner by using a vacuum heat insulating panel in order to expand the volume inside the refrigerator. In this case, the vacuum heat insulating panel is provided not only on the heat insulating walls on the left and right sides of the heat insulating box but also on the heat insulating wall on the back side, so that the vacuum heat insulating panel is located on the back surface of the inner box. In such a configuration, urethane foam is not provided on the heat insulating wall at the back of the heat insulating box, or urethane foam is provided only thinly, and the degree of fixation of the suction pipe cannot be enhanced by urethane foam.

Japanese Unexamined Patent Publication No. 2004-245526

The present embodiment provides a refrigerator capable of increasing the degree of fixation of a pipe even if the inner box constituting the heat insulating box is provided with a heat insulating material on the back surface.

The refrigerator according to the present embodiment includes a heat insulating box, a heat insulating material, a pipe, and a fixture. The heat insulating box has a storage chamber inside. The heat insulating material is provided on the back surface of the inner box constituting the heat insulating box body. The pipe is arranged on the back surface of the inner box where the heat insulating material does not exist. The fixture fixes the pipe to the portion of the back surface of the inner box where the heat insulating material does not exist. When viewed from the width direction of the heat insulating material, the portion of the fixture that holds the pipe overlaps the heat insulating material.

A vertical sectional view schematically showing a configuration example of a refrigerator according to the present embodiment. Cross-sectional view schematically showing a configuration example of a refrigerator Rear view of inner box (A) is a perspective view of the fixture in the open state as seen from the front surface side, and (b) is a perspective view of the fixture in the open state as viewed from the back surface side. Cross-sectional view of the fixture and the fixture mounting member Longitudinal section of fixture and fixture mounting member Enlarged view of the periphery of the fixture at the back edge of the inner box

Hereinafter, an embodiment relating to the refrigerator will be described with reference to the drawings. The refrigerator 10 illustrated in FIG. 1 is provided with a plurality of storage chambers 12, 13, 14, 15 and the like inside the heat insulating box 11 constituting the outer shell thereof. In this case, the storage room 12 is a refrigerating room, the storage room 13 is a vegetable room, the storage room 14 is an ice making room, and the storage room 15 is a freezing room. Further, the refrigerator 10 is provided with a refrigerating cycle for cooling each storage chamber. The freezing cycle has a configuration in which a compressor 16, a condenser (not shown), a refrigerating cooler 17, a refrigerating cooler 18, and the like are connected by a refrigerant pipe. Further, the refrigerator 10 includes a control device 19 that controls the overall operation of the refrigerator 10. In this case, the control device 19 is provided on the upper surface of the heat insulating wall on the ceiling of the heat insulating box 11.

As illustrated in FIG. 2, the heat insulating box 11 has vacuum heat insulating panels 23, 24, 25 and urethane foam 26 as heat insulating materials between the metal outer box 21 and the synthetic resin inner box 22. I have. In this case, the vacuum heat insulating panel 23 is provided in the heat insulating wall at the back of the heat insulating box 11, that is, on the back surface of the inner box 22. Further, the vacuum heat insulating panels 24 and 25 are provided in the heat insulating walls on the left and right sides of the heat insulating box 11, that is, on the left and right side surfaces of the inner box 22. Further, the urethane foam 26 is filled in the edge of the heat insulating wall on the back of the heat insulating box 11, that is, on the back edge of the inner box 22. The urethane foam 26 is injected and cured in a portion of the space inside the heat insulating box 11 in which the vacuum heat insulating panels 23, 24, and 25 do not exist.

In this case, the left and right rear corner portions of the inner box 22 are chamfered portions 22a that are not bent at right angles and are gently inclined. That is, the back edge of the inner box 22 is a chamfered portion 22a. The vacuum heat insulating panel 23 is arranged so as to face the region excluding the edge portion on the back surface of the inner box 22, that is, the region excluding the chamfered portion 22a. Further, a suction pipe 31 forming a part of the refrigerant pipe of the refrigeration cycle is arranged in a region facing the back edge portion of the inner box 22, that is, a region facing the chamfered portion 22a. The refrigerator 10 is a suction pipe 31 that connects the refrigerating suction pipe 31r that connects the refrigerating cooler 17 and the compressor 16 and the refrigerating cooler 18 and the compressor 16. It is provided with a refrigerating suction pipe 31f.

The refrigerator 10 according to the present embodiment is devised so as to fix the suction pipe 31 arranged at the back edge of the inner box 22 in this way. Next, the configuration for fixing the suction pipe 31 will be described in detail.
That is, the suction pipe 31 arranged at the back edge of the inner box 22 is fixed to the back edge of the inner box 22 by the fixture 100. As illustrated in FIG. 3, in this case, the suction pipe 31 is fixed at a plurality of places by a plurality of fixtures 100. The number of fixtures 100 can be changed as appropriate. As illustrated in FIG. 4, the fixture 100 has a base portion 101 that holds the suction pipe 31 and a cover portion 102 that covers the base portion 101. In this case, the fixture 100 has a so-called self-hinge structure in which the base portion 101 and the cover portion 102 are integrally and rotatably connected to each other at the hinge portion 103.

The base portion 101 has a long, substantially rectangular shape as a whole. The base portion 101 has a plurality of holding portions 110, 111, 112 extending in a direction orthogonal to the longitudinal direction thereof. The holding portion 110 is provided at a substantially central portion in the longitudinal direction of the base portion 101. The bottom of the holding portion 110 is formed in a gently curved groove shape, and holds various lines such as a power supply line and a communication line connected to the control device 19, for example.

The holding portions 111 and 112 are provided so as to sandwich the holding portions 110 at both ends of the base portion 101 in the longitudinal direction. The bottoms of the holding portions 111 and 112 are formed in a gently curved groove shape, and as illustrated in FIG. 5, the suction pipe 31 is sandwiched between the holding portions 111 and 112 from the front-rear direction with the cover portion 102. In addition to holding, the capillary pipe 32 is also held. The capillary tube 32 is a component of the refrigeration cycle and functions as a so-called decompressor. In this case, the holding portions 111 and 112 are formed shallower than the holding portions 110. Further, the holding portion 111 on the hinge portion 103 side holds one suction pipe 31 and one capillary pipe 32. The suction pipe 31 held by the holding portion 111 is, in this case, the freezing suction pipe 31f. Further, the holding portion 112 on the side opposite to the hinge portion 103 is wider than the holding portion 111, and holds two suction pipes 31 and two capillary pipes 32. In this case, the suction pipe 31 held by the holding portion 112 is a refrigerating suction pipe 31r and a freezing suction pipe 31f.

Further, the holding portions 111 and 112 are provided with temporary fixing portions 113 for temporarily fixing the suction pipe 31 and the capillary pipe 32 held inside the holding portions 111 and 112. The temporary fixing portion 113 has a thin plate shape extending inward of the holding portions 111 and 112. In this case, in the holding portion 111, a temporary fixing portion 113 is provided on one side surface of the holding portion 111. On the other hand, in the holding portion 112, temporary fixing portions 113 are provided on both side surfaces of the holding portion 112.

Further, the base portion 101 has a plurality of claw portions 114a and 114b on a portion opposite to the hinge portion 103. In this case, the claw portions 114a and 114b project from between the holding portion 110 and the holding portion 112 on the side opposite to the hinge portion 103. Further, the tip portions of the claw portions 114a and 114b project toward the hinge portion 103 side.

On the other hand, the cover portion 102 has an elongated substantially rectangular shape as a whole corresponding to the base portion 101. The cover portion 102 has a plurality of closing portions 210, 211, and 122. The closing portion 210 is provided at a substantially central portion in the longitudinal direction of the cover portion 102. The closing portion 201 is gently curved, and closes the holding portion 110 with the cover portion 102 closed to the base portion 101.

The closing portions 211 and 212 are provided so as to sandwich the closing portions 210 at both ends of the cover portion 102 in the longitudinal direction. The closing portion 211 on the hinge portion 103 side is formed in a plate shape that is inclined with respect to the longitudinal direction of the cover portion 102, and the holding portion on the hinge portion 103 side is formed in a state where the base portion 101 is closed by the cover portion 102. Block 111. The closing portion 212 on the opposite side of the hinge portion 103 is formed in a plate shape along the longitudinal direction of the cover portion 102, and is on the opposite side of the hinge portion 103 when the base portion 101 is closed by the cover portion 102. The holding portion 112 of the is closed.

Further, the cover portion 102 has a plurality of non-locking portions 115a and 115b on the surface side opposite to the base portion 101 when the cover portion 102 closes the base portion 101. The non-locking portions 115a and 115b project toward the side opposite to the hinge portion 103. Further, the cover portion 102 has holes 116a and 116b at the root portions of the non-locking portions 115a and 115b. These holes 116a and 116b are substantially rectangular holes having a size that allows the claws 114a and 114b of the base 101 to be inserted when the cover 102 is rotated toward the base 101.

When the cover portion 102 is rotated toward the base portion 101, the claw portions 114a and 114b of the base portion 101 are inserted into the holes 116a and 116b of the cover portion 102, and the tip portions of the claw portions 114a and 114b are unlocked portions. It is locked to the tips of 115a and 115b. As a result, as illustrated in FIG. 5, the base portion 101 is maintained in a state of being closed by the cover portion 102. By releasing the locked state of the claw portions 114a and 114b with respect to the non-locking portions 115a and 115b, the cover portion 102 can be rotated so as to open from the base portion 101.

As illustrated in FIG. 5, the fixture 100 configured in this way is attached to the back edge of the inner box 22 via the fixture attachment member 200. The fixture mounting member 200 is made of a heat insulating material such as EPS (Expanded Polystyrene). As illustrated in FIG. 6, the fixture mounting member 200 has a protruding portion 200a at a portion on the side where the fixture mounting member 200 is mounted on the back edge portion of the inner box 22. The fixture mounting member 200 is mounted on the back edge of the inner box 22 by fitting the protrusion 200a into the slit 22s provided on the back edge of the inner box 22. In this case, the fixture mounting member 200 is fixed to the slit 22s of the inner box 22 via an adhesive means such as double-sided tape or an adhesive. The slits 22s are provided, for example, to form a bead or the like for supporting a shelf that is detachably attached to the inside of the storage chamber.

Further, the outer shape of the fixture attachment member 200, particularly the outer shape of the portion opposite to the side attached to the slit 22s, has a shape that follows the outer shape of the back surface side of the base portion 101 of the fixture 100. Therefore, the base portion 101 of the fixture 100 is attached to the fixture attachment member 200 with almost no gap. The base portion 101 of the fixture 100 is fixed to the fixture mounting member 200 via an adhesive means such as a double-sided tape or an adhesive. At this time, as illustrated in FIG. 7, the fixture 100 is attached so that its hinge portion 103 is located on the outer side of the back edge of the inner box 22, that is, on the side opposite to the vacuum heat insulating panel 23.

Further, as illustrated in FIG. 5, the refrigerator 10 may have a protective tape 300 attached to the surface of the fixture 100. The protective tape 300 may be attached so as to cover a part of the fixture 100, for example, the end portion of the fixture 100 on the side opposite to the hinge portion 103, that is, the end portion on the vacuum insulation panel 23 side. , May be attached so as to cover the entire surface of the fixture 100.

The protective tape 300 also has a function as a heat insulating material, and prevents cold heat from being transmitted from the suction pipe 31 to the vacuum heat insulating panel via the fixture 100. Further, as shown in FIG. 2, a part of the fixture mounting member 200 and the vacuum heat insulating panel 24 on the side surface face each other, that is, a part of the vacuum heat insulating panel 24 is wrapped. In the portion where the fixture mounting member 200 and the vacuum heat insulating panel 24 on the side surface face each other, the urethane foam 26 is less and thinner than the other parts, but the vacuum heat insulating panel 24 realizes a configuration that suppresses deterioration of the heat insulating performance. Has been done.

According to the refrigerator 10 according to the present embodiment, the fixture 100 for fixing the suction pipe 31 to the back edge of the inner box 22 is provided. Here, the refrigerator 10 is configured to include the vacuum heat insulating panel 23 on the back surface of the inner box 22 constituting the heat insulating box body 11, but the portion where the vacuum heat insulating panel 23 does not exist, that is, the edge portion on the back surface of the inner box 22 Is filled with urethane foam 26. Therefore, by fixing the suction pipe 31 at the back edge of the inner box 22 with the fixture 100, the degree of fixation of the suction pipe 31 can be increased by the urethane foam 26, and the quality of the refrigerator 10 can be improved. it can.

When the suction pipe 31 comes into contact with the vacuum heat insulating panel 23, the cold heat of the refrigerant passing through the suction pipe 31 is transmitted to the vacuum heat insulating panel 23, particularly the aluminum material covering the vacuum heat insulating panel 23. Further, the cold heat is transmitted to the outer box 21 of the heat insulating box body 11 to cause dew condensation on the outer surface of the outer box 21, and the dew condensation flows down to wet the floor surface. According to the refrigerator 10 according to the present embodiment, the suction pipe 31 is firmly held by the fixture 100 at the back edge of the inner box 22 in which the vacuum heat insulating panel 23 does not exist, and is further fixed by the urethane foam 26. The degree has been increased. Therefore, it is possible to prevent the suction pipe 31 from coming into contact with the vacuum heat insulating panel 23, and it is possible to prevent the occurrence of dew condensation on the outer surface of the outer box 21.

Further, according to the refrigerator 10, a fixture attachment member 200 having a shape along the outer shape of the fixture 100 and being attached to the back edge of the inner box 22 is provided. The fixture 100 is attached to the fixture attachment member 200. According to this configuration, the fixture 100 that holds the suction pipe 31 is firmly fixed, and by extension, the degree of fixation of the suction pipe 31 can be further increased.
Further, according to the refrigerator 10, the fixture mounting member 200 is made of a heat insulating material. According to this configuration, the fixture 100, and by extension, the suction pipe 31 held by the fixture 100 can be fixed in a more insulated state.

Further, according to the refrigerator 10, the fixture 100 has a so-called self-hinge structure in which the base portion 101 and the cover portion 102 are integrally connected. In a configuration in which the base part and the cover part are provided as separate parts, when manufacturing the fixture, the work of manufacturing the base part and the cover part separately, the work of combining the manufactured base part and the cover part, etc. Is required, and the workability deteriorates. According to the fixture 100 according to the present embodiment, it is possible to obtain the fixture 100 in which the base portion 101 and the cover portion 102 are integrally connected, for example, by resin molding or the like. Therefore, the fixture 100 can be manufactured without the work of combining the base portion 101 and the cover portion 102, and the manufacturability is good.

Further, according to the refrigerator 10, the fixture 100 includes a temporary fixing portion 113 for temporarily fixing the suction pipe 31. According to this configuration, it is possible to prevent the suction pipe 31 from falling out of the fixture 100 before closing the base portion 101 with the cover portion 102, that is, before the main fixing of the suction pipe 31, and to improve workability. Can be improved.

Further, the fixture 100 is attached so that the hinge portion 103 connecting the base portion 101 and the cover portion 102 is located on the outer side at the rear edge portion of the inner box 22. In the manufacturing process of the refrigerator 10, the work of attaching the suction pipe 31 to the edge of the back surface of the inner box 22 is performed with the back surface of the inner box 22 facing up and the front surface facing down. At this time, if the hinge portion 103 of the fixture 100 is located on the outer side of the back edge of the inner box 22, the hinge portion 103 side is located below the side opposite to the hinge portion 103. Therefore, when the cover portion 102 is opened from the base portion 101, the hinge portion 103 is opened upward, and the hinge portion 103 can function as a receiving portion. As a result, the suction pipe 31 is received by the hinge portion 103 and is less likely to fall off, and the workability of the work of attaching the suction pipe 31 can be improved.

Further, according to the refrigerator 10, by attaching the protective tape 300 to the surface of the fixture 100, even if the vacuum heat insulating panel 23 comes into contact with the fixture 100, the vacuum heat insulating panel 23 is prevented from being damaged. can do. Further, it is possible to prevent the cover portion 102 from being unintentionally opened from the base portion 101, and therefore, the degree of fixation of the suction pipe 31 can be further increased.

The refrigerator according to the present embodiment includes a heat insulating box, a vacuum heat insulating panel, a suction pipe, and a fixture. The heat insulating box has a storage chamber inside. The vacuum heat insulating panel is provided on the back surface of the inner box constituting the heat insulating box body. The suction pipe is located at the back edge of the inner box. The fixture fixes the suction pipe to the back edge of the inner box. According to this configuration, even if a vacuum heat insulating panel is provided on the back surface of the inner box constituting the heat insulating box body, the urethane foam filled in the edge on the back surface of the inner box in which the vacuum heat insulating panel does not exist causes suction. The degree of fixation of the pipe can be increased.

Although a plurality of embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

In the drawing, 10 is a refrigerator, 11 is a heat insulating box, 12, 13, 14, 15 are storage rooms, 22 is an inner box, 23 is a vacuum heat insulating panel, 31 is a suction pipe, 100 is a fixture, 101 is a base part, and so on. 102 is a cover portion, 103 is a hinge portion, 113 is a temporary fixing portion, 200 is a fixture mounting member, and 300 is a protective tape.

Claims (1)

Insulated box with storage room inside and
A heat insulating material provided on the back surface of the inner box constituting the heat insulating box body, and
A pipe arranged on the back surface of the inner box where the heat insulating material does not exist,
A fixture for fixing the pipe to a portion of the back surface of the inner box where the heat insulating material does not exist,
With
A refrigerator in which a portion of the fixture holding the pipe overlaps the heat insulating material when viewed from the width direction of the heat insulating material.

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