JP4707490B2 - Refrigerator - Google Patents

Description

  The present invention relates to a refrigerator, and more particularly, to a refrigerator having a packing that suppresses cold air in a cooling chamber from leaking out of the refrigerator.

  2. Description of the Related Art A packing that is provided between a cooling body main body and a door and suppresses cooling air in a cooling chamber from leaking outside the storage is conventionally known.

For example, in Japanese Patent Laid-Open No. 10-160331 (Patent Document 1), a door body, a gasket provided on the peripheral edge of the door on the cooling chamber side, which suppresses cold air in the cooling chamber from leaking to the outside, and a cooling chamber The refrigerator door provided with the packing which has the inflow suppression part which suppresses that the cool air flows into the said gasket is disclosed. The said packing is fixed by engaging with a door main body.
JP-A-10-160331

  Since the packing of patent document 1 is provided by engaging with the back member of a door, it cannot control that cool air is transmitted to the back member itself. By passing through the back member of the door, the cool air in the cooling chamber is likely to leak out of the cabinet.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a cooler in which leakage of cold air is suppressed.

Cooling box according to the present invention includes: a refrigerator body having a cooling chamber, a door openable and closable with respect to the opening of the refrigerator body, provided we are in the cooling compartment side of the door in the closed state of the door, a back member having a projection projecting into the cooling chamber side to the inner circumferential side of the opening, are found provided on the periphery of the door, the front-rear direction of the refrigerator body portion located on the outer peripheral side of the opening in the refrigerator body in comprising those in the first packing to contact, and a second packing provided to engage the rear member at said first inner periphery of the packing. The second packing is provided on the inner peripheral side of the first packing on the outer peripheral side with respect to the engaging portion that engages the tip of the protruding portion of the back member, and on the outer peripheral side of the opening in the refrigerator main body. A first portion that abuts the positioned portion in the front-rear direction of the cooler main body, a second portion on the inner peripheral side of the first portion and the engaging portion, and an inner peripheral side of the second portion and the back member The contact prevents the cool air in the cooling chamber from flowing into the gap formed between the second portion and the protrusion, and the portion that contacts the first portion in the cooling body in the front-rear direction is referred to as the first packing and the front-rear direction. It is characterized in that it is retracted to the back side of the cooling chamber rather than the part that abuts. Preferably, a slit portion that divides the back member into an inside and an outside at a portion where the second packing is engaged is provided along the circumferential direction of the back member.

According to the said structure, it can suppress that the cool air in a cooling chamber flows into the clearance gap between the part engaged with the back surface member in a 2nd packing, and a back surface member. Moreover, since the back member is divided into the inner side and the outer side by the slit portion, it is possible to prevent cold air from leaking along the back member. Therefore, it can suppress that the cool air in a cooling chamber leaks out of a warehouse.

  In the above refrigerator, a seal member having a thermal conductivity lower than that of the back member is preferably provided in a portion where the slit portion is provided.

Accordingly, it is possible to suppress the cold air in the cooling chamber from leaking out of the cabinet, and it is possible to suppress the foam from leaking out from the slit portion when the foam heat insulating material is provided in the door.
In the refrigerator, the second portion of the second packing is preferably provided so as to face the cooling chamber.

  ADVANTAGE OF THE INVENTION According to this invention, it can suppress that the cool air in a cooling chamber leaks out of a warehouse.

  Below, the embodiment of the refrigerator based on this invention is described. Note that the same or corresponding portions are denoted by the same reference numerals, and the description thereof may not be repeated.

  In the present specification, the “refrigerator” is a concept including all of “refrigerator”, “freezer” and “refrigerator”.

  FIG. 1 is a diagram showing a refrigerator according to one embodiment of the present invention. With reference to FIG. 1, the refrigerator 1 according to the present embodiment includes a refrigerator main body 100 and a door 200. The door 200 is provided so that it can be opened and closed with respect to the opening of the refrigerator main body 100. A cooling chamber 150 is formed between the refrigerator main body 100 and the door 200.

  The door 200 includes a front member 210 made of a metal such as resin or stainless steel and located on the front side of the cooling chamber, and a back member 220 made of resin or the like and located on the cooling chamber side. A heat insulating material 230 made of urethane foam or the like is provided between the front member 210 and the back member 220.

  2 is a view of the door of the refrigerator shown in FIG. 1 as viewed from the direction of the arrow DR1. Referring to FIG. 2, packing 300 is provided on the back side of door 200 to prevent the cool air in the cooling chamber from leaking out of the cabinet. The packing 300 includes a first packing 310 and a second packing 320. The second packing 320 is provided on the inner peripheral side of the first packing 310. The second packing 320 has a hard portion 321 made of polypropylene, styrene, or the like, and a soft portion 322 made of elastomer, vinyl chloride, or the like. The soft portion 322 includes a first portion 322A located on the outer peripheral side of the door 200 with respect to the hard portion 321 and a second portion 322B located on the inner peripheral side of the door 200 with respect to the hard portion 321.

  In the example shown in FIG. 2, the four sides of the second packing 320 are provided separately, and a slight gap is formed in the corner portion. For example, the second portion is formed by welding the soft portion 322 in the corner portion. The second packing 320 may be assembled to the back member 220 after the packing 320 has a frame shape. Further, when viewed from the direction shown in FIG. 2, a part of the first packing 310 and a part of the second packing 320 may be provided so as to overlap each other.

  FIG. 3 is an enlarged view of the III-III cross section in FIG. Referring to FIG. 3, a protrusion 221 is formed on the back member 220, and a slit 222 that divides the back member 220 into an inside and an outside is formed in the protrusion 221. Further, a heat insulating material 231 is provided so as to close the slit portion 222. The heat insulating material 231 functions as a “seal member” that suppresses leakage of the foamed resin from the slit portion 222 when foaming the resin between the front member 210 and the back member 220 to form the heat insulating material 230. . The thermal conductivity of the heat insulating materials 230 and 231 is lower than the thermal conductivity of the back member 220. Further, the second packing 320 is attached to the door 200 by engaging the hard portion 321 of the second packing 320 with the protruding portion 221 of the back member 220. That is, the second packing 320 is provided so as to cover the slit portion 222.

  As described above, by providing the slit portion 222 in the back member 220, it is possible to prevent the cool air in the refrigerator from leaking out of the refrigerator through the back member 220. Further, as described above, by providing the second packing 320 on the slit portion 222, the slit portion 222 can be made invisible even when the door 200 is opened.

  The first portion 322 </ b> A in the soft portion 322 of the second packing 320 is attached to the hard portion 321 of the second packing 320. The first portion 322A seals between the hard portion 321 and the refrigerator main body 100.

  The second portion 322 </ b> B in the soft portion 322 of the second packing 320 is attached to the hard portion 321 of the second packing 320. And the 2nd part 322B suppresses that the cool air in a cooling chamber flows into the clearance gap between the hard part 321 and the back surface member 220. FIG. Further, by providing the second portion 322B as shown in FIG. 3, the unevenness in the vicinity of the protruding portion 221 of the back member 220 can be hidden. Therefore, it can suppress that the external appearance of the refrigerator 1 is impaired by installation of the protrusion part 221. FIG.

  FIG. 4 is a diagram illustrating an example of the shape of the slit portion 222 formed in the protruding portion 221 of the back member 220. In the example shown in FIG. 4, the slit portion 222 is provided over substantially the entire circumference of the protruding portion 221. The back member 220 divided into the inner side and the outer side by the slit part 222 is connected at the corner parts (four places) of the protruding part 221.

  FIG. 5 is a view showing another example of the shape of the slit portion 222 formed in the protruding portion 221 of the back member 220. In the example shown in FIG. 5, the slit portion 222 is configured by a plurality of long holes arranged in the circumferential direction of the back member 220. Such a slit portion 222 can also prevent the cool air in the refrigerator from leaking out of the refrigerator through the back member 220.

  The above contents are summarized as follows. That is, the refrigerator 1 according to the present embodiment includes a refrigerator main body 100 having a cooling chamber, a door 200 that can be opened and closed with respect to the opening of the refrigerator main body 100, and a cooling chamber side of the door 200. A back member 220 provided, a first packing 310 provided at the peripheral edge of the door, and a second packing 320 provided by being engaged with the back member 220 on the inner peripheral side of the first packing 310, A slit portion 222 that divides the back member 220 into an inner side and an outer side at a portion where the second packing 320 is engaged is provided along the circumferential direction of the back member 220.

  According to the above configuration, the back member 220 is divided by the slit portion 222, so that it is possible to prevent cold air from leaking through the back member 220. Therefore, it can suppress that the cool air in a cooling chamber leaks out of a warehouse. Moreover, since the slit part 222 can be concealed by the second packing 320 by providing the slit part 222 in the portion where the second packing 320 is engaged, the appearance of the back surface of the door 200 is suppressed from being damaged. .

  In the refrigerator 1, a heat insulating material 231 as a “seal member” having a lower thermal conductivity than that of the back member 220 is preferably provided in a portion where the slit portion 222 is provided.

  Thereby, it is possible to prevent the cool air in the cooling chamber from leaking out of the chamber, and to prevent the foam from leaking out from the slit portion 222 when the heat insulating material 230 that is a foam is provided.

  Note that the installation of the heat insulating material 231 can be omitted. In this case, for example, the heat insulating material 231 is foamed in a state where the slit portion 222 is closed with a tape or the like.

  The packing 300 described above is typically used in a freezer compartment of a refrigerator. For example, in a Stirling refrigerator using a Stirling refrigerator, the temperature of the freezer compartment is particularly low, so it is particularly important to suppress the leakage of cold air. However, the packing 300 may be used in a compressor-type refrigerator. Moreover, the packing 300 may be used in a refrigerator compartment.

  Although the embodiments of the present invention have been described above, the embodiments disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is the figure which showed the refrigerator which concerns on one embodiment of this invention. It is the figure which looked at the door of the refrigerator shown in FIG. 1 from arrow DR1 direction. It is the figure which expanded and showed the III-III cross section in FIG. It is the figure which showed an example of the shape of the slit part formed in the back surface member of a door. It is the figure which showed the other example of the shape of the slit part formed in the back surface member of a door.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Cooling chamber, 100 Cooling chamber main body, 150 Cooling chamber, 200 Door, 210 Front member, 220 Back member, 221 Protruding portion, 222 Slit portion, 230, 231 Heat insulating material, 300 packing, 310 First packing, 320 Second packing , 321 Hard part, 322 Soft part, 322A First part, 322B Second part.

Claims (4)

A refrigerator body having a cooling chamber;
A door provided to be openable and closable with respect to the opening of the cooling body,
Before Symbol are found provided on the cooling chamber side of the door, the back member having a projection projecting into the cooling chamber side to the inner peripheral side of the opening in the closed state of the door,
Wherein is found provided on the periphery of the door, the first packing abutting in the longitudinal direction of the refrigerator body portion located on the outer peripheral side of the opening in the refrigerator main body,
A second packing provided to be engaged with the back member on the inner peripheral side of the first packing ;
The second packing is provided on an inner peripheral side of the first packing at an outer peripheral side with respect to an engaging portion that engages with a tip of the protruding portion of the back member, A first portion that contacts the portion located on the outer peripheral side of the opening in the front-rear direction of the cooler main body, and a second portion on the inner peripheral side of the first portion and the engaging portion,
Due to the contact between the inner peripheral side of the second part and the back member, it is suppressed that the cool air in the cooling chamber flows into a gap part formed between the second part and the protruding part,
The cooler, wherein a portion of the cooler main body that is in contact with the first portion in the front-rear direction is retreated to the back side of the cooling chamber from a portion that is in contact with the first packing in the front-rear direction .   The refrigerator according to claim 1, wherein a slit portion that divides the back member into an inner side and an outer side at a portion where the second packing is engaged is provided along a circumferential direction of the back member.   The refrigerator according to claim 2, wherein a seal member having a thermal conductivity lower than that of the back member is provided at a portion where the slit portion is provided. The refrigerator according to any one of claims 1 to 3 , wherein the second portion of the second packing is provided so as to face the cooling chamber.

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