TWI592621B - Refrigerator - Google Patents

Description

refrigerator

The present invention relates to a refrigerator, and more particularly to a construction of a door of a refrigerator.

In the conventional refrigerator door, for example, the pull-out door system is composed of a front plate and a rear plate which are disposed with a space therebetween, and the vacuum heat insulating material is disposed between the front plate and the rear plate to improve the pulling. Thermal insulation between the outlets. The front plate and the rear plate are configured such that the left and right end portions of the pull-out door collide with each other or partially overlap each other to surround the entire storage compartment without a gap. Further, a refrigerator (for example, refer to Patent Document 1) which is provided inside the left and right portions of the left and right sides of the pull-out type door is provided, and in order to improve the heat insulating performance of the storage room, the inside of the storage room is provided to be large. Protruding the left and right protrusions.

Further, a refrigerator (see, for example, Patent Document 2) is proposed. The refrigerator is a split door, and the protruding portion is provided on a left and right protruding portion of the inner panel of the door, and further, a door that is suspended from the left and right protruding portions is provided. The bag makes the storage capacity in the storage room larger.

[Prior patent documents] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2014-66386

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2014-20572

However, the protruding portions of the door of the refrigerator disclosed in Patent Document 1 and Patent Document 2 are intended to improve the heat insulating performance of the storage compartment and increase the storage capacity in the storage compartment, and are not intended to improve the strength of the door of the refrigerator. Here, as a method of enlarging the internal volume of the refrigerator without increasing the installation size of the refrigerator, there is a method of reducing the thickness of the heat insulating material constituting a part of the casing of the refrigerator. At this time, in the refrigerator disclosed in Patent Document 1 and Patent Document 2, when the thickness of the heat insulating material of the door is gradually reduced, the door is deformed due to the decrease in the strength of the door, and the magnetic pad and the refrigerator provided in the door are provided. There is a gap between the bodies, and there is a problem of cold air leakage.

The present invention has been made in order to solve the problems as described above, and an object thereof is to provide a refrigerator in which the heat insulating material of the door is made thin and the strength of the door is not lowered.

The refrigerator of the present invention has a casing having an opening as an opening, and a door that opens and closes an opening of the front surface of the casing; the door has an outer panel; and the inner panel is configured to be disposed with the outer panel a heat insulating material disposed between the outer panel and the inner panel; the magnetic pad being mounted over an outer edge of the opening side of the inner panel; the left protruding portion being closer to the inner side than the magnetic pad Further, the left side of the inner panel protrudes toward the opening side in the height direction; and the right side protruding portion is closer to the inner side than the magnetic pad, and protrudes from the right side of the inner panel toward the opening side in the height direction; on the left side The protruding portion and the inside of the right protruding portion are provided with reinforcing members in the height direction.

According to the present invention, by providing the reinforcing member in the right side wall portion and the left side wall portion of the inner panel of the door, it is possible to obtain a refrigerator in which the heat insulating material of the door is thinned and the strength of the door is not lowered.

1‧‧‧

1a‧‧‧

1b‧‧‧

2‧‧‧ inner board

3‧‧‧Inside plate projection

3a‧‧‧Inside plate projection

3b‧‧‧Inside plate projection

4‧‧‧Reinforcing components

5‧‧‧Ethyl foam amine

6‧‧‧ Hinges

7‧‧‧Hands

8‧‧‧ magnetic pad

9‧‧‧ cabinet

10‧‧‧ gap

11‧‧‧ door thickness

12‧‧‧Adhesive members

13‧‧‧ claw

14‧‧‧ rib

15‧‧‧Inside plate height

16‧‧‧Vacuum insulation components

17‧‧‧glass surface material

18‧‧‧ Frame gap

100‧‧‧ refrigerator

Fig. 1 is a schematic perspective view of a refrigerator according to a first embodiment of the present invention.

Fig. 2 is an exploded perspective view showing the door of the first embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view showing a door according to a first embodiment of the present invention.

Fig. 4 is an enlarged view of a portion surrounded by a broken line in Fig. 3.

Fig. 5 is a view showing an example in which the reinforcing member according to the first embodiment of the present invention is fixed to the inner panel projecting portion.

Fig. 6 is a view showing an example in which the reinforcing member according to the first embodiment of the present invention is fixed to the inner panel projecting portion.

Fig. 7 is a schematic view showing a modification of the door.

Fig. 8 is a view showing a calculation example of the relationship between the thickness of the heat insulating material and the strength of the door.

Fig. 9 is an exploded perspective view showing the door of the second embodiment of the present invention.

Figure 10 is an enlarged cross-sectional view of the end of the door.

Fig. 11 is a view showing a calculation example of the relationship between the protruding height of the inner panel and the strength of the door according to the second embodiment of the present invention.

Fig. 12 is an exploded perspective view showing the door of the third embodiment of the present invention.

Figure 13 is an enlarged cross-sectional view of the end of the door.

Fig. 14 is an exploded perspective view showing the door of the fourth embodiment of the present invention.

Figure 15 is an enlarged cross-sectional view of the end of the door.

Hereinafter, an embodiment of the refrigerator 100 of the present invention will be described with reference to the drawings. Further, the form of the figure is an example and is not intended to limit the inventors. In addition, the same reference numerals are attached to the same drawings in the respective drawings, which are common to the patent specifications. Further, in the following drawings, the relationship between the sizes of the respective constituent elements is different from the actual one.

First embodiment

Fig. 1 is a schematic perspective view of a refrigerator according to a first embodiment of the present invention. As shown in Fig. 1, the refrigerator 100 includes a case body 9 that is open at the front, and a split door 1a and a door 1b that close the opening of the case 9. The door 1a and the door 1b are opened and closed with the hinge 6 as a central axis by pulling or pushing the handle 7 provided at the lower portion. Further, the case where the respective doors 1a and 1b are not particularly distinguished is referred to as a door 1.

Fig. 2 is an exploded perspective view showing the door of the first embodiment of the present invention. As shown in Fig. 2, the door 1 is formed in the order of the glass surface material 17, the frame edge gap 18, the inner plate 2, and the magnetic pad 8 from the front side of the refrigerator 100. The handle 7 is disposed at a lower portion of the frame gap 18. The reinforcing member 4 is provided on the side of the inner panel 2. Further, the glass surface material 17 corresponds to the "outer plate" of the present invention.

Fig. 3 is a schematic cross-sectional view showing a door 1 according to a first embodiment of the present invention. As shown in Fig. 3, the foamed urethane 5 is surrounded by the glass surface material 17 to surround the front side, the inner side 2 surrounds the rear side, and the left and right sides are surrounded by the frame gap 18. The inner panel protruding portion 3a and the inner panel protruding portion 3b projecting toward the opening in the height direction of the refrigerator 100 are provided on the inner side of the magnetic pad 8 and on the left and right sides of the inner panel 2. The reinforcing member 4 to be described later is provided on the inner panel protruding portion 3a and the foamed amine Between ethyl acetate 5 . Similarly, the reinforcing member 4 is disposed between the inner panel projection 3b and the foamed urethane 5. Further, the case where the inner panel protruding portions 3a and the inner panel protruding portions 3b are not particularly distinguished is referred to as an inner panel protruding portion 3.

Here, if the thickness between the glass surface material 17 and the inner panel 2 is taken as the door thickness (thickness of the heat insulating material) 11, since the strength of the door 1 is obtained from the second moment of the section of the door, the thickness of the door is The cube of 11 is proportional. The heat insulating material is composed of foamed urethane 5 and a vacuum heat insulating member 16 to be described later, and the thickness of the heat insulating material is, for example, 15 to 20 mm. This is because the thickness of the foamed urethane 5 is set to 5 mm and the thickness of the vacuum heat insulating member 16 is set to 10 to 15 mm in the case where the foamed urethane 5 is not based on the heat insulating property. The insulation performance of the door 1 can be ensured.

Further, the inner panel protruding portion 3a corresponds to the "left side protruding portion" of the present invention. Moreover, the inner panel protruding portion 3b corresponds to the "right side protruding portion" of the present invention.

Fig. 4 is an enlarged view of a portion surrounded by a broken line in Fig. 3. As shown in Fig. 4, the reinforcing member 4 is adhered to the inner panel projecting portion 3b via the adhesive member 12. The reinforcing member 4 is embedded in the foamed urethane 5 and is reinforcing the strength of the door 1. The reinforcing member 4 is composed of a flat plate-shaped metal plate having a large bending elasticity, and has a thickness of, for example, 1 mm to 2 mm. As the adhesive member 12, an adhesive is used. However, as long as the reinforcing member 4 can be fixed to the inner panel protruding portion 3b, the second moment of the section becomes large, and since the strength of the door 1 is improved, a double-sided tape or a hot-melt adhesive can be used. .

Fig. 5 and Fig. 6 are views showing an example in which the reinforcing member 4 according to the first embodiment of the present invention is fixed to the inner panel projecting portion 3b. As shown in FIG. 5, the reinforcing member 4 can be replaced by the above-mentioned adhesive member 12, by The claw shape 13 provided on the inner panel protruding portion 3b is fitted and fixed. Moreover, as shown in Fig. 6, the rib 14 provided on the inner panel projecting portion 3b can be press-fitted and fixed. In this manner, by fixing the reinforcing member 4 to the inner panel protruding portion 3b by the claw shape 13 and the rib 14, the second moment of the section becomes large, and the strength of the door 1 is improved.

Fig. 7 is a schematic view showing a modification of the door 1. As shown in FIGS. 1 and 7, when the door 1 is opened, the handle 7 which is substantially perpendicular to the hinge 6 is pulled in the direction indicated by the arrow. At this time, in the case where the strength of the door 1 is weak, or when the door 1 does not include the reinforcing member 4, the door 1 is deformed, and a gap 10 is generated between the magnetic pad 8 and the case 9. As a result, a malfunction such as a leak of cold air in the refrigerator 100 occurs.

Fig. 8 is a view showing a calculation example of the relationship between the door thickness 11 (thickness of the heat insulating material) and the strength of the door 1. As shown in Fig. 8, in the case where the door 1 does not include the reinforcing member 4, the displacement of the door 1 when the thickness of the heat insulating material is 20 mm is regarded as 1. Here, as the thickness of the heat insulating material increases from 20 mm, the displacement of the door 1 decreases. Therefore, when the door 1 does not include the reinforcing member 4, when the thickness of the heat insulating material is made thin, the strength of the door 1 is lowered.

As described above, since the refrigerator 100 is provided with the reinforcing member 4 in the inner panel projecting portion 3, the strength of the door 1 is increased, and since the door 1 is prevented from being bent, it is possible to prevent a problem such as leakage of cold air in the refrigerator 100.

Further, in the first embodiment, the inner panel projecting portion 3b has been described. However, the present invention is not limited thereto, and since the inner panel projecting portion 3a has the same structure as the inner panel projecting portion 3b, the inner panel projecting portion 3a can be said. It is also the same as the inner panel projection 3b. This is also the same in the second to fourth embodiments to be described later.

Second embodiment

Since the basic configuration of the refrigerator 100 of the second embodiment is the same as that of the refrigerator 100 of the first embodiment, the difference from the first embodiment of the second embodiment will be mainly described. The difference between the second embodiment and the first embodiment is that the reinforcing member 4 is not provided, and the strength of the inner panel projecting portion 3 is increased to increase the strength of the door 1.

Fig. 9 is an exploded perspective view showing the door 1 of the second embodiment of the present invention. As shown in Fig. 9, the door 1 is constructed in the order of the glass surface material 17, the frame edge gap 18, the inner plate 2, and the magnetic pad 8 from the front side of the refrigerator 100. The handle 7 is disposed at a lower portion of the frame gap 18.

Figure 10 is an enlarged cross-sectional view of the end of the door 1. As shown in Fig. 10, the inner panel projecting height 15 which is the height of the inner panel projecting portion 3b is three times or more higher than the thickness 11 of the heat insulating material. As shown above, the strength of the door 1 is proportional to the cube of the door thickness 11 according to the second moment of the section of the door. In order to enlarge the inner volume of the refrigerator 100, the door thickness 11 is gradually thinned, and the strength of the door 1 is gradually lowered (refer to Fig. 8). Therefore, instead of making the door thickness 11 thicker, by setting the inner panel projecting height 15 which is the height of the inner panel projecting portion 3b to be more than three times higher than the thickness 11 of the heat insulating material, the second moment of the cross section of the door 1 is changed. Large, increase the strength of the door 1. Further, the inner panel projecting height 15 of the height of the inner panel projecting portion 3b is set to be four times the thickness 11 of the heat insulating material in order to maintain the storage capacity of the storage bag attached to the door 1.

Fig. 11 is a view showing a calculation example of the relationship between the inner panel protruding height 15 and the strength of the door 1 according to the second embodiment of the present invention. Assuming that the thickness of the heat insulating material is 20 mm, it will be 3 times 60 mm as the reference for the inner panel protruding height 15, and the displacement of the door 1 when the inner panel protruding height 15 is 60 mm is set to 1. Here, as the inner panel protruding height 15 increases from 60 mm, the displacement of the door 1 decreases. Therefore, if the inner panel protruding height 15 is decreased more than 60 mm, the strength of the door 1 is lowered.

As described above, by setting the inner panel protruding height 15 which is the height of the inner panel projecting portion 3 to be more than three times higher than the door thickness 11, the strength of the door 1 is increased, since the bending of the door 1 can be suppressed, so that the inside of the refrigerator 100 can be prevented. Badness such as cold air leakage.

Third embodiment

Since the basic configuration of the refrigerator 100 according to the third embodiment is the same as that of the refrigerator 100 of the first embodiment, the difference from the first embodiment of the third embodiment will be mainly described. The heat insulating material of the third embodiment and the first embodiment is composed of foamed urethane 5 and a vacuum heat insulating member 16.

Fig. 12 is an exploded perspective view showing the door 1 of the third embodiment of the present invention. As shown in Fig. 12, the door 1 is formed in the order of the glass surface material 17, the frame gap 18, the vacuum heat insulating member 16, the inner plate 2, and the magnetic pad 8 from the front side of the refrigerator 100. The handle 7 is disposed at a lower portion of the frame gap 18. The reinforcing member 4 is provided on the side of the inner panel 2.

Figure 13 is an enlarged cross-sectional view of the end of the door 1. As shown in Fig. 13, the foamed urethane ethyl ester 5 and the vacuum heat insulating member 16 are disposed between the inner panel 2 and the glass face material 17. The vacuum heat insulating member 16 has a heat insulating property of about 10 times that of the foamed urethane 5 . That is, if the vacuum heat insulating member 16 is used as a heat insulating material and the heat insulating property of the door 1 is to be maintained, the thickness of the heat insulating material can be made as compared with the case where only the foamed urethane 5 is used as the heat insulating material. 11 thin to about 1/10. In addition, In order to ensure heat insulation performance, the vacuum heat insulating material 16 needs to set the coverage of the door 1 to 65% or more. Further, the foamed urethane 5, the foamed urethane 5 and the vacuum heat insulating member 16 correspond to the "insulation material" of the present invention.

As described above, the door thickness 11 is thinned by the high heat insulating performance of the vacuum heat insulating member 16, and since the strength of the door 1 is weak, it is necessary to reinforce the door 1. Therefore, as in the first embodiment, the reinforcing member 4 is provided in the inner panel protruding portion 3b of the door 1, and the strength of the door 1 is increased.

As described above, as the heat insulating material, not only the foamed urethane 5 but also the vacuum heat insulating member 16 is used, and the refrigerator 100 is provided with the reinforcing member 4 by the inner panel protruding portion 3, and the strength of the door 1 is increased because it can be suppressed. Since the door 1 is bent, it is possible to prevent malfunction such as leakage of cold air in the refrigerator 100.

Fourth embodiment

Since the basic configuration of the refrigerator 100 of the fourth embodiment is the same as that of the refrigerator 100 of the second embodiment, the difference from the second embodiment of the fourth embodiment will be mainly described. The different point heat insulating material according to the fourth embodiment and the second embodiment is composed of foamed urethane 5 and a vacuum heat insulating member 16.

Fig. 14 is an exploded perspective view showing the door 1 of the fourth embodiment of the present invention. As shown in Fig. 14, the door 1 is formed in the order of the glass surface material 17, the frame edge gap 18, the vacuum heat insulating member 16, the inner plate 2, and the magnetic pad 8 from the front side of the refrigerator 100. The handle 7 is disposed at a lower portion of the frame gap 18.

Figure 15 is an enlarged cross-sectional view of the end of the door 1. As shown in Fig. 15, the foamed urethane 5 and the vacuum heat insulating member 16 are disposed between the inner panel 2 and the glass face material 17. Vacuum insulation member 16 has foamed urethane 5 About 10 times the thermal insulation performance. That is, if the vacuum heat insulating member 16 is used as a heat insulating material and the heat insulating property of the door 1 is to be maintained, the thickness of the heat insulating material can be made as compared with the case where only the foamed urethane 5 is used as the heat insulating material. 11 thin to about 1/10.

Therefore, since the strength of the door 1 becomes weak, it is necessary to reinforce the door 1. Therefore, as in the second embodiment, the inner panel projecting height 15 of the inner panel projecting portion 3b is set to be three times or more higher than the door thickness 11, thereby improving the strength of the door 1.

From the above, as the heat insulating material, not only the foamed urethane 5 but also the vacuum heat insulating member 16 is used, and the inner panel protruding height 15 which is the height of the inner panel projecting portion 3b is set to be larger than the thickness of the heat insulating material. When the height of the door 11 is three times or more, the strength of the door 1 is increased, and since the door 1 is restrained from being bent, it is possible to prevent a problem such as leakage of cold air in the refrigerator 100.

Further, the present invention will be described with reference to the first to fourth embodiments described above, but the first to fourth embodiments of the present invention may be directly combined.

1a‧‧‧

1b‧‧‧

6‧‧‧ Hinges

7‧‧‧Hands

9‧‧‧ cabinet

100‧‧‧ refrigerator

Claims (7)

A refrigerator having: a casing having an opening as an opening; and a door opening and closing the opening of the front of the casing; the door having an outer panel; and an inner panel disposed to face the outer panel The heat insulating material is disposed between the outer panel and the inner panel; the magnetic pad is installed around the outer edge of the opening side of the inner panel; the left protruding portion is closer to the inner side than the magnetic pad, and The left side of the inner panel protrudes toward the opening side in the height direction; and the right side protruding portion is closer to the inner side than the magnetic pad, and protrudes from the right side of the inner panel toward the opening side in the height direction; at the left side protrusion portion And the inside of the right side protrusion part has a reinforcement member in the height direction. The refrigerator according to claim 1, wherein the reinforcing member is composed of a flat metal plate. A refrigerator according to claim 1 or 2, wherein the heat insulating material has a thickness of 15 to 20 mm. A refrigerator according to claim 1 or 2, wherein the heat insulating material is a vacuum heat insulating material having a coverage of 65% or more. A refrigerator having: a box having an opening as an opening; and a door opening and closing the opening of the front of the box; The door has: an outer panel; the inner panel is disposed opposite to the outer panel; the heat insulating material is disposed between the outer panel and the inner panel; and the magnetic pad is mounted over the inner panel An outer edge of the opening side; the left protruding portion is closer to the inner side than the magnetic pad, and protrudes from the left side of the inner plate toward the opening side in the height direction; and the right protruding portion is closer to the inner side than the magnetic pad, and The right side of the inner panel protrudes toward the opening side in the height direction; the height of the left side protruding portion and the right side protruding portion is three times or more the thickness of the heat insulating material. The refrigerator of claim 5, wherein the heat insulating material has a thickness of 15 to 20 mm. A refrigerator according to claim 5 or 6, wherein the heat insulating material is a vacuum heat insulating material having a coverage of 65% or more.