JP2018066537A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator suppressing heat exchange between the inside and the outside of the refrigerator at a door throat part, and including a more excellent heat insulation box body.SOLUTION: A refrigerator includes: a gasket 42 fitted to a door 8 and closely contact with a front surface opening part of a storage chamber; and a soft material 44 provided in a heat insulation box body. The gasket 42 includes: a magnet holding part 53 integrated with a magnet; a fitting part 54 engaged with a groove formed on the door 8; a flexible part 55 connecting the fitting part 54 and the magnet holding part 53 in an expandable/contractable manner; and a magnet lower bag-like part 56 formed between the magnet holding part 53 and the flexible part 55 while being in contact with the lower part of the magnet holding part 53. A gasket protruding part 45 is provided while being positioned at the inside of the door with respect to a reference surface of a magnet contact surface 51 closely contact with the heat insulation box body, so that an independent air layer can be formed by the gasket 42, the soft material 44, the heat insulation box body and a heat insulation door and heat exchange between the inside of the refrigerator and the outside of the refrigerator can be suppressed.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a refrigerator provided with a gasket with improved heat insulation.

The shape of the refrigerator gasket has been devised so as to ensure heat insulation with the heat insulation box and long-term durability. (For example, see Patent Document 1)
Hereinafter, the conventional refrigerator will be described with reference to the drawings.

  FIG. 4 is a cross-sectional view of a conventional refrigerator gasket.

  The gasket 130 includes a magnet holding part 131 with a built-in magnet, a mounting part 132 that engages with a groove provided in the heat insulating door, a flexible part 133 that freely connects the mounting part 132 and the magnet holding part 131, and a magnet. A magnet lower bag-shaped portion 134 formed between the magnet holding portion 131 and the flexible portion 133 in contact with the lower portion of the holding portion 131, and a ring protruding in the direction of the storage chamber connected to the flexible portion 133 by the connecting portion. An inner circumferential bag-shaped portion 136 having a shape, and the center of the inner circumferential bag-shaped portion 136 in the front-rear direction is located on the door side with respect to the reference surface of the magnet contact surface that is in close contact with the heat insulating box. Due to the above-described positional relationship, the deformation amount of the inner circumferential side bag-like portion 136 that is compressed when the door is closed can be reduced, and the heat insulation box, the heat insulation door hermeticity and the long-term durability can be ensured.

JP 2014-238211 A

  However, even the refrigerator having the conventional gasket has a problem that it is difficult to make the gasket, the heat insulating wall, and the heat insulating door come into contact with each other and to prevent the cold air leakage.

  The present invention solves the above-described conventional problems, and by forming an air layer in the space of the gasket, the soft material, the heat insulation box and the heat insulation door, the heat exchange between the inside and the outside of the warehouse is suppressed, and is more excellent. An object of the present invention is to provide a refrigerator including an insulated box.

  In order to solve the above conventional problems, the refrigerator of the present invention includes an inner box, an outer box, and a heat insulating box formed by a heat insulating material filled between the inner box and the outer box, An openable and closable door provided on the front surface of the storage chamber in the heat insulation box, a gasket provided on the door and in close contact with the front opening of the storage chamber, and a soft material provided in the heat insulation box, The gasket includes a magnet holding portion with a built-in magnet, a mounting portion that engages with a groove provided in the door, a flexible portion that freely connects the mounting portion and the magnet holding portion, and a lower portion of the magnet holding portion. A magnet lower bag-like part formed between the magnet holding part and the flexible part in contact with the magnet, and the gasket convexity is located on the inner side of the door with respect to the reference surface of the magnet contact surface in close contact with the heat insulating box. It has a part.

  Thereby, an independent air layer can be formed by the gasket, the soft material, the heat insulating box, and the heat insulating door in the space where the inside and the outside of the warehouse communicate with each other, and heat exchange between the inside and the outside of the warehouse can be suppressed.

  The refrigerator of the present invention can form an independent air layer with a gasket, a soft material, a heat insulating box and a heat insulating door, and can suppress heat exchange between the inside and the outside of the warehouse, thus providing a refrigerator with improved energy saving. can do.

The perspective view of the refrigerator in Embodiment 1 of this invention Vertical section of the refrigerator The A section enlarged view in FIG. 2 of the refrigerator Sectional view of a conventional refrigerator gasket

  The invention according to claim 1 is an insulating box formed by an inner box, an outer box, a heat insulating material filled between the inner box and the outer box, and a storage chamber in the heat insulating box. A door provided on the front surface that can be opened and closed; a gasket that is provided on the door and is in close contact with the front opening of the storage chamber; and a soft material that is provided in the heat insulation box. The gasket includes a magnet. A magnet holding portion, a mounting portion that engages with a groove provided in the door, a flexible portion that freely connects and retracts the mounting portion and the magnet holding portion, and a magnet holding portion in contact with a lower portion of the magnet holding portion; A magnet lower bag-shaped portion formed between the flexible portion, and a gasket convex portion located on the inner side of the door with respect to the reference surface of the magnet contact surface that is in close contact with the heat insulating box, Gasket, soft material, heat insulation box and heat insulation In separate can form an air layer, it is possible to suppress the heat exchange compartment within and outside-compartment, it is possible to provide a refrigerator with improved energy efficiency.

  According to a second aspect of the present invention, in the first aspect of the invention, the soft material is configured to approach or abut against the gasket convex portion, so that the gasket, the soft material, and the heat insulating box can be more reliably provided. In addition, an independent air layer can be formed by the heat insulating door, and heat exchange between the inside and the outside of the warehouse can be suppressed.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the inner flat surface of the soft material is positioned closer to the door convex portion than the mounting portion, The space with the door convex part can be reduced, and an independent air layer formed by the gasket convex part with the gasket, soft material, heat insulating box and heat insulating door can be easily formed, and heat exchange between the inside and outside of the box is suppressed. be able to.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects of the present invention, the gasket convex portion is formed in a bag shape or a fin, so that the gasket can be reliably configured with a simple structure. An independent air layer can be formed by the soft material, the heat insulating box, and the heat insulating door, and heat exchange between the inside and the outside of the box can be suppressed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
1 and 2 are diagrams for explaining the overall configuration of the refrigerator according to Embodiment 1 of the present invention, and FIG. 3 is a partially enlarged view of the throat portion at the periphery of the opening of the refrigerator (enlarged view of A portion in FIG. 2).

In the figure, the refrigerator main body 1 is composed of a metal outer box 2, a hard resin inner box 3, and a foam heat insulating material 4 filled between the outer box 2 and the inner box 3. A plurality of storage chambers are partitioned by the plates 5, 6 and the like. Each storage room of the refrigerator main body 1 is openable and closable by a double door 7 and drawer type doors 8, 9, 10, and 11 adopting the same heat insulation structure as the refrigerator main body 1.

  The storage room formed in the refrigerator main body 1 includes an uppermost refrigerating room 14, a switching room 15 provided under the refrigerating room 14, and an ice making room 16 provided on the side, a switching room 15, The freezer compartment 18 is provided between the ice making compartment 16 and the lowermost vegetable compartment 17.

  In addition, a cooling chamber 19 is provided on the back surface of the freezer compartment 18 of the refrigerator body 1, and a cooling device 20 that generates cold air and a cooling fan 21 that supplies the cold air to the chambers are installed in the cooling chamber 19. It is. Further, a defrosting means 22 composed of a glass tube heater or the like is provided below the cooler 20.

  The cooler 20 includes a compressor 23, a condenser (not shown), a heat radiating pipe (not shown), and a capillary tube (not shown) connected in a ring shape to form a refrigeration cycle. Then, cooling is performed by circulation of the refrigerant compressed by the compressor 23.

  Moreover, the cooling fan 21 is provided above the cooler 20, and the refrigerator compartment 14, the freezer compartment 18, via the refrigerator compartment duct 24, the freezer compartment duct 25, and the vegetable compartment duct (not shown) connected to the downstream side thereof. Cold air is supplied to the vegetable compartment 17 and the like to cool each chamber.

  The refrigerator compartment 14 is located at the uppermost part of the refrigerator main body 1 and is provided with a plurality of detachable shelves 27 to divide the refrigerator compartment space into a plurality of upper and lower spaces, and as shown in FIG. A low-temperature storage room, for example, a partial freezer room 28 and a chilled room 29 are provided in two layers.

  The refrigerator compartment 14 is cooled to 1 to 5 ° C. so that it does not freeze, the partial freezer chamber 28 in the refrigerator compartment is −2 to −3 ° C. suitable for microfrozen storage, and the chilled chamber 29 is more than the refrigerator compartment 14. It is cooled to a temperature around 1 ° C., which is low and slightly higher than that of the partial freezer chamber 28.

  FIG. 3 is a partially enlarged view of the throat portion at the periphery of the opening of the refrigerator main body 1 formed by the drawer-type doors 8, 9, 10, 11 and the inner box 3. As an example, the portion A in FIG. 2 is enlarged. FIG.

  The throat 47 in the opening of the refrigerator body 1 is insulated by the gasket 42 attached to the periphery of the drawer-type door 8 being in contact with the magnet contact surface 51 of the outer box of the refrigerator body 1. In order to reduce the space 49 between the door 8 and the interior flat surface 46 and improve the heat insulation, the door 8 is provided with a door protrusion 48.

  The gasket 42 includes a magnet holding portion 53 with a built-in magnet, a mounting portion 54 that engages with a groove provided in the door 8, a flexible portion 55 that freely connects the mounting portion 54 and the magnet holding portion 53, and a magnet. A magnet lower bag-like portion 56 formed between the magnet holding portion 53 and the flexible portion 55 is provided in contact with the lower portion of the holding portion 53.

  A bag-shaped gasket convex portion 45 is formed integrally with the gasket 42 in order to close the space 49.

  The gasket convex portion 45 is disposed on the inner side of the door with respect to the reference surface (vertical surface) of the magnet contact surface 51 that is in close contact with the heat insulating box.

The soft material 44 is adhered and attached to the inner box inner surface 43 facing the door protrusion 48 in the throat 47 of the opening of the refrigerator main body 1. The soft material 44 is a flexible and heat insulating material such as polyethylene foam, and is configured to approach or abut against the gasket convex portion 45 when the door is closed.

  In addition, the inside plane B of the soft material 44 is configured to be positioned closer to the inside plane D side of the door convex portion 48 than the horizontal plane C of the mounting portion 54.

  The operation and action of the refrigerator configured as described above will be described below.

  The drawer-type door 8 is pulled out when the user takes out the stored food inside or stores the food inside, and is then closed.

  The gasket 42 attached to the periphery of the drawer-type door 8 is in contact with the magnet contact surface 51 of the outer box of the refrigerator body 1, thereby preventing cold air from leaking from the space 49 of the throat 47 to the outside air 52 side. .

  At this time, it is formed integrally with the gasket 42, and is opposed to the bag-shaped gasket convex portion 45 disposed on the inner side of the door with respect to the reference surface (vertical surface) of the magnet contact surface 51 and the door convex portion 48. The throat 47 is blocked from the flow of cool air by the soft material 44 which is attached to the inner surface 43 of the inner box and is attached to the gasket convex portion 45 so as to approach or come into contact therewith. That is, between the space 49 in the warehouse and the outside air 52, in addition to the heat insulating effect (sealing effect) by the gasket 42, the gasket convex portion 45 and the soft material 44 are independently blocked in the throat 47 as described above. As a result of the formed space, a more excellent heat insulating effect (sealing effect) can be exhibited. Thereby, the refrigerator provided with the heat insulation box which suppresses the heat exchange between the inside and the outside of the warehouse and has more excellent heat insulating properties can be provided.

  And since the gasket convex part 45 is arrange | positioned and arrange | positioned inside a door with respect to the reference surface (vertical surface) of the magnet contact surface 51 closely_contact | adhered with a heat insulation box, the gasket 42, the soft material 44, and the heat insulation box In addition, an independent air layer can be easily formed by the heat insulating door, and heat exchange between the inside and the outside of the warehouse can be reliably suppressed.

  Further, the soft material 44 is attached and attached to the inner box inner surface 43 facing the door convex portion 48 in the throat 47 of the opening of the refrigerator body 1 and has a flexible and heat insulating property such as polyethylene foam. Since it is configured to approach or abut against the gasket convex portion 45 when the door is closed, an independent air layer can be reliably formed, and heat exchange between the inside and the outside can be suppressed.

  In addition, since the inner plane B of the soft material 44 is configured to be located closer to the inner plane D of the door convex portion 48 than the horizontal plane C of the mounting portion 54, the width (height) of the throat 47 by the soft material 44 is configured. Dimension) can be reduced, and heat exchange between the internal space 49 and the outside air 52 can be more reliably suppressed.

  In the present embodiment, the gasket protrusion 45 has a bag shape, but may be formed of a soft fin, a seal sash, or the like.

  Further, in the present embodiment, the gasket convex portion 45 is described as being formed integrally with the gasket 42, but it may be formed separately and provided in the door convex portion 48 in the throat 47.

  In the present embodiment, the pull-out door 8 has been described. However, the present invention is not limited to this, and the same effects can be obtained with respect to other pull-out doors.

  As described above, the refrigerator according to the present invention can form an independent air layer in the door throat portion and suppress heat exchange between the inside and the outside of the refrigerator. Applicable.

DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Outer box 3 Inner box 4 Foam heat insulating material 5, 6 Partition plate 7 Double doors 8, 9, 10, 11, 12 Door 14 Refrigeration room 15 Switching room 16 Ice making room 17 Vegetable room 18 Freezing room 19 Cooling room 20 cooler 21 cooling fan 22 defrosting means 23 compressor 24 refrigerator compartment duct 25 freezer compartment duct 27 shelf 28 partial freezer chamber 29 chilled chamber 42 gasket 43 inner box inner surface 44 soft material 45 gasket convex portion 46 inner plane 47 Throat 48 Door convex part 49 Space 51 Magnet contact surface 52 Outside air 53 Magnet holding part 54 Mounting part 55 Flexible part 56 Magnet lower bag-like part

Claims (4)

A heat insulating box formed by an inner box, an outer box, a heat insulating material filled between the inner box and the outer box, and an openable / closable door provided on the front surface of the storage chamber in the heat insulating box. A gasket provided on the door and in close contact with the front opening of the storage chamber; and a soft material provided in the heat insulation box, wherein the gasket is provided on the door and a magnet holding part containing a magnet. A mounting portion that engages with the groove, a flexible portion that freely connects and retracts the mounting portion and the magnet holding portion, and a lower portion of the magnet holding portion that is formed between the magnet holding portion and the flexible portion. A refrigerator having a gasket convex portion located on the inner side of the door with respect to a reference surface of a magnet contact surface that is in close contact with the heat insulating box. The refrigerator according to claim 1, wherein the soft material is configured to approach or abut against the gasket convex portion. The refrigerator according to claim 1 or 2, wherein the inner flat surface of the soft material is configured to be positioned closer to the door convex portion than the mounting portion. The refrigerator according to any one of claims 1 to 3, wherein the gasket convex portion is formed in a bag shape or a fin.

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