JP5300647B2 - refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator capable of reducing power consumption by improving cooling performance by reducing amounts of warm air and cold air flowing around in-storage components exposed to the outside air, while keeping sealability of a door. <P>SOLUTION: This refrigerator has a heat insulating housing opened at its front face, an internal partitioning section 5 having a metallic partition outer plate 51 at its front side and dividing the inside of the heat insulating housing, and the door 7 for opening and closing the divided front opening section, and a gasket 20 having a magnet 21 and a door inner face seal member 25 are disposed on an inner wall of the door 7. The door inner face seal member 25 is composed of a body section 26 mounted at an inner side of the door 7, and a plurality of seal pieces 30 suspended from the body section 26 at prescribed intervals. When the door 7 is closed, at least the seal piece 30 of the most depth section is positioned at a depth side with respect to the metallic partition outer plate 51 of the internal partitioning section 5, and a clearance gap g is formed between lower ends of the plurality of seal pieces 30 and a top face of the internal partitioning section 5. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a refrigerator, and more particularly, to a refrigerator in which external heat is prevented from entering the interior from the vicinity of a door.

  Refrigerators usually divide the inside of a heat-insulated box whose front is opened by a plurality of compartment partitions, and are provided with an openable and pull-out type door at the front opening, and a storage room and a freezer in the area surrounded by these A vegetable compartment is formed, and a metal partition outer plate for adsorbing and sealing a magnet provided on the door gasket is provided on the front opening side of the internal partition.

  In such a refrigerator, when the door is closed, a gap is formed between the upper and lower doors, and the metal partition outer plate is exposed. In addition, since the cool air in the warehouse leaks to the outside through the interior partition, there is a problem that the cooling performance inside the warehouse is lowered and the power consumption is increased.

  A conventional refrigerator is provided with a shielding plate formed by integrally molding a hard plastic and a soft plastic on the upper wall surface and the lower wall surface inside the door cabinet, and the front end portion of the shielding plate made of soft plastic closes the door. Sometimes, the inner wall surface of the partition plate inside the warehouse and the inner wall surface deeper than the landfill position of the hot gas pipe, to improve cooling performance and reduce power consumption (for example, Patent Document 1).

JP-A-10-122730 (5th page, FIG. 1)

  According to the refrigerator of Patent Document 1, the tip of the shielding plate made of soft plastic moves while sliding on the upper and lower partition plates when closing the door. There has been a problem that abnormal noise is generated or the braking action by sliding contact causes a decrease in the adhesion force of the magnetic packing provided on the door to the partition plate, resulting in poor sealing of the door.

  Such a problem becomes more serious due to variations in the assembly state during mass production of the refrigerator, and in some cases, the leading edge of the shielding plate is caught on the front surface of the partition plate, making it impossible to completely close the door. May occur.

  The present invention has been made in order to solve the above-described problems, and reduces the amount of warm air and cold air flowing in the vicinity of the inner member that touches the outside air while maintaining the sealing performance of the door, thereby reducing the cooling performance. The purpose is to provide a refrigerator that can improve power consumption and reduce power consumption.

A refrigerator according to the present invention opens and closes a heat insulating box having a front surface opened, an internal partition having a metal partition outer plate on the front side and dividing the heat insulating box, and the partitioned front opening. A door and a gasket having a magnet on the inner wall of the door and a door inner surface sealing member, and the door inner surface sealing member is attached to the inner side of the door, and a predetermined amount from the main body portion. When the door is closed, at least the innermost seal piece is positioned on the back side of the metal partition outer plate of the internal partition part, and the plurality of seal pieces are suspended at intervals. A gap is formed between the lower end of the seal piece and the upper surface of the inner partition, and the door inner surface sealing member is made of hard plastic and is attached to the door and the inner side of the mounting Insulated space was formed A body portion consisting Lumpur projection, which is constituted by forming integrally a plurality of sealing pieces insulation space suspended at a predetermined interval from the main body consists of soft plastic is formed.

  According to the present invention, it is possible to reduce warm air and cold air flowing through the inside member that comes into contact with the outside air, so that the cooling performance is high and power consumption can be reduced, and abnormal noise is generated when the door is opened and closed. A refrigerator can be obtained.

It is explanatory drawing of the freezer compartment of the refrigerator which concerns on Embodiment 1 of this invention, and its periphery. It is explanatory drawing of the principal part of FIG. It is a perspective view of the warehouse inner surface sealing member of FIG. It is explanatory drawing of the principal part of the freezer compartment of the refrigerator which concerns on Embodiment 2 of this invention. It is explanatory drawing of the principal part of the freezer compartment of the refrigerator which concerns on Embodiment 3 of this invention. It is a perspective view of the warehouse inner surface sealing member of FIG. It is explanatory drawing of the principal part of the freezer compartment of the refrigerator which concerns on Embodiment 4 of this invention.

[Embodiment 1]
FIG. 1 is an explanatory diagram of a freezer compartment and its surroundings of a refrigerator according to Embodiment 1 of the present invention, and FIG. 2 is an enlarged view of a main part of FIG.
As shown in FIG. 1, a refrigerator main body 1 made of a heat insulating box is integrally formed with a back plate 2, left and right side plates (not shown) filled with a heat insulating material 3, and the back plate 2. A freezer compartment 6 having a front opening is provided between the upper and lower internal partition parts 4 and 5, and a drawer-type door 7 filled with a heat insulating material 3 is provided in the front opening. ing. In addition, for example, a refrigerator room and a vegetable room having drawer-type doors 8 and 9 are provided above and below the freezer room 6 (hereinafter, the freezer room 6 will be mainly described).

  12 is a cool air passage provided in the back plate 2 with a partition wall 13 between the freezer compartment 6, and an evaporator 14 is installed in the partition wall 13, and a cool air outlet 15 a that opens above and below the evaporator 14 and A cold air return port 15b is provided. Reference numeral 16 denotes a blower provided in the cold air passage 12 so as to face the cold air outlet 15a. A drain receiver 17 is provided at the lower part of the evaporator 14 and is connected to a drain joint 18 via a packing to collect moisture generated by defrosting of the evaporator 14 and discharge it to the outside of the refrigerator main body 1. Reference numeral 19 denotes a case which is accommodated in the freezer compartment 6 so as to be freely inserted and removed, and accommodates stored items to be cooled.

  On the upper and lower sides of the inner wall surface of the door 7, there are provided projecting portions 71 and 72 extending horizontally toward the inner side in the vertical direction (hereinafter referred to as the width direction) of the drawing, The gasket 20 is provided at the lower part of the projecting part 72, and the door inner surface sealing member 25 is attached to the lower projecting part 72.

  In the freezer compartment 6 configured as described above, the cold air cooled by the evaporator 14 passes through the cold air passage 12 by the blower fan 16 and is sent into the freezer compartment 6 from the cold air outlet 15a as indicated by an arrow. A part of the cool air sent into the freezer compartment 6 flows into the case 19 and cools the stored items in the case 19. The cool air circulates in the entire freezer compartment 6 and then flows into the cool air return port 15 b and returns to the lower side of the evaporator 14.

Next, the door 7 and the internal partition parts 4 and 5 will be described with reference to FIG. In addition, since the internal partition parts 4 and 5 are the same structures, the internal partition part 5 is demonstrated below.
The internal partition section 5 includes a metal partition outer plate 51 having a U-shaped cross section made of a magnetic material disposed in the width direction on the front side (door 7 side), and one end at the top and bottom of the flange 51a of the metal partition outer plate 51. And the heat insulating material 3 filled in the space surrounded by the metal partition outer plate 51 and the plastic partition outer plates 52a and 52b.

  Reference numeral 20 denotes a gasket that is press-fitted and fixed in a concave groove 73 provided in the width direction at the upper and lower portions of the projecting portions 71 and 72 provided on the inner wall of the door 7, and is made of, for example, polyvinyl chloride. A magnet 21 is provided that is attracted to the metal partition outer plate 51 of the internal partition 5 when the door 7 is closed.

  Reference numeral 25 denotes a door inner seal material that is long in the width direction. As shown in FIG. 3, a main body portion 26 made of hard plastic and a plurality of seal pieces 30a, 30b, 30c, 30d made of soft plastic (hereinafter simply referred to as 30). In some cases. The main body 26 is formed in a substantially C shape and is fitted and fixed to the protruding portion 72 of the door 7, and the protruding portion heat insulating space 29 is formed inside the mounting portion 27. In addition, the seal protrusion 30 has a quadrangular section for holding the shape of the seal piece 30.

And in the lower part of the main-body part 26, the some seal piece 30a-30d suspended at the substantially equal interval in the front-back direction is provided, and seal piece heat insulation space 31a, 31b, between these seal pieces 30a-30d, 31c (hereinafter, these may be simply referred to as 31) is formed.
As shown in FIG. 2, the inner surface sealing material 25 configured as described above is fitted and fixed to the protruding portion 72 of the door 7.

Next, the operation of the present embodiment configured as described above will be described.
When the door 7 of the freezer compartment 6 is closed, the magnet 21 provided on the gasket 20 is attracted and adhered to the metal partition outer plate 51 of the internal partition 5 to ensure the airtightness of the freezer compartment 6.

At this time, the seal piece 30 of the door inner surface seal member 25 hangs down to the inner partition part 5 side, and the seal piece 30a located deepest among these is at least from the end of the flange 51a of the metal partition outer plate 51. It is located on the back side (for example, the back side about twice the width in the front-rear direction of the flange 51a of the metal partition outer plate 51). At this time, a seal piece heat insulating space 31d is formed between the seal piece 30d located closest to the door 7 and the gasket 20.
Further, the lower end portion of the seal piece 30 faces a gap g (for example, about 3 mm) that does not come into contact with the upper surface of the internal partition 5, and the counter flow path 32 is formed by the gap g.

Then, when the door 7 is closed, the air present in the seal piece heat insulating space 31 formed by the seal piece 30 of the door inner surface seal member 25 is transmitted from the gasket 20 or the metal partition outer plate 51 of the partition piece 5 or the like. It is warmed by heat, becomes warm air, passes above the counter flow path 32, and flows into the freezer compartment 6. On the other hand, in place of this warm air, the cool air in the freezer compartment 6 flows under the convection channel 32 and flows into the seal piece heat insulating space 31 to cool the metal partition outer plate 51.
In the refrigerator, this change in warm air and cold air affects the cooling efficiency.

  In the present embodiment, the seal piece 30a located on the back side of the door inner surface seal member 25 is located on the back side of the flange 51a of the metal partition outer plate 51, for example, about twice the width in the front-rear direction of the flange 51a. Since it is made to be close to the metal partition outer plate 51 that is separated from the outside air, the air in the seal piece heat insulating spaces 31d and 31c that are easy to warm is placed on the back side of the flange 51a of the metal partition outer plate 51. The warm air flowing into the freezer compartment 6 from the counter flow path 32 can be reduced by cooling with air (cold air) in 31b.

  Moreover, since the cooling effect | action of the metal partition outer plate 51 by the cold air which flowed out from the freezer compartment 6 reduces, generation | occurrence | production of the dew condensation of the part which touches the external air of the metal partition outer plate 51 can be suppressed. In addition, although the figure showed the case where the four sealing pieces 30 of the door inner surface sealing member 25 were provided, said effect can further be heightened by increasing this.

  Further, since the protruding portion heat insulating space 29 is formed by the seal protruding portion 28 of the door inner surface sealing member 25, the outside air heat transmitted from the gasket 20, the metal partition outer plate 51, etc. is insulated from the rear seal pieces 31b, 31a. By propagating to the space 29, the outside heat transferred to the freezer compartment 6 can be reduced.

  Further, when the door 7 is closed, a gap g (for example, about 3 mm) that has a certain margin between the lower end portion of the seal piece 30 of the door inner surface seal member 25 and the upper surface of the internal partition portion 5. Even if the gap g between the seal piece 30 and the upper surface of the internal partition 5 varies due to a large amount of stored items stored in the case 19 or due to variations during mass production of the refrigerator, the door When closing 7, the seal piece 30 does not come into contact with the internal partition 5, and therefore the adsorbability of the magnet 21 provided on the gasket 20 to the metal partition outer plate 51 is not impaired. Moreover, there is no occurrence of abnormal noise or wear due to contact friction.

  Further, since the seal piece 30 of the door inner surface seal member 25 is made of soft plastic and has flexibility, even if the door 7 is closed, the seal piece 30 itself is not damaged. Since it is elastically deformed and absorbs an impact at the time of contact, it is possible to prevent damage to the seal piece 30 and the internal member.

[Embodiment 2]
FIG. 4 is an explanatory diagram of the freezer compartment of the refrigerator and its surroundings according to Embodiment 2 of the present invention. Parts having the same or similar functions as those in the first embodiment are denoted by the same reference numerals.
In this embodiment, in the warehouse inner surface seal member 25 attached to the protruding portion 72 of the door 7 of the first embodiment, the lower end portions of the seal pieces 30a to 30d are connected by a thin seal plate 33 made of the same material as this, The sealed heat insulating spaces 34a, 34b, and 34c are formed between the seal pieces 30a to 30d, and convection is generated by a gap g (for example, about 3 mm) formed between the seal plate 33 and the upper surface of the internal partition 5. A path 32a is formed.

  And it was divided from the freezer compartment 6 in the area which the projection part 72 of the door 7, the gasket 20, the door inner surface sealing member 25, the sealing plate 33, the metal partition outer plate 51, and the plastic partition outer plate 52a contact or approach each other. A gasket heat insulation space 35 is formed.

  The operation and effect of the present embodiment are almost the same as those of the first embodiment, but when the door 7 is closed, the seal plate 33 is provided on the seal piece 30 of the door inner surface seal member 25. Since the fluid resistance of the convection channel 32a increases and the flow velocity of the warm air flowing through the convection channel 32a is reduced, the amount of warm air in the gasket heat insulation space 35 flowing into the freezer compartment 6 can be reduced.

  Further, the heat transmitted from the gasket heat insulation space 35 through the seal plate 33 is kept in the seal piece heat insulation spaces 34c, 34b, 34a and the protrusion heat insulation space 29, thereby reducing the heat conducted to the freezer compartment 6. Can do. In addition, although the figure showed the case where three seal piece heat insulation spaces 34a-34c formed by the seal piece 30 and the seal plate 33 were provided, the above effect is further enhanced by increasing this number. be able to.

[Embodiment 3]
FIG. 5 is an explanatory view of the freezer compartment of the refrigerator according to Embodiment 3 of the present invention and the main parts around it. Parts having the same or similar functions as those in the first embodiment are denoted by the same reference numerals.
In this embodiment, as shown in FIG. 6, the seal piece 36 of the door inner surface seal member 25 attached to the protrusion 72 of the door 7 of the first embodiment is replaced with the seal piece 36a on the back side and the seal on the door 7 side. The piece 36d is formed in a substantially L shape by bending its lower end inwardly, and the seal pieces 36b and 36c provided between them are formed in a substantially inverted T shape, and the tips of the adjacent seal pieces 36a to 36d are formed. A slit-shaped slight gap g ₁ (for example, a gap of about 1 mm) is provided between the portions.

In other words, slits are provided along the seal pieces 30a to 30d between the seal pieces 30a to 30d of the seal plate 33 according to the second embodiment. It is called part 38.
Seal piece insulation spaces 37a to 37c are formed between the seal pieces 36a to 36d, and the seal piece 36d on the door 7 side of the gasket 20 and the door inner surface seal member 25 is formed as in the second embodiment. Gasket heat insulating space 35 is formed between the two and the gap g formed between the seal partitioning portion 28 of the door inner surface sealing member 25 and the upper surface of the internal partitioning portion 5. 32b is formed.

  The operation and effect of the present embodiment are almost the same as those of the first embodiment. Further, when the door 7 is closed, a seal partitioning portion 38 is provided on the seal piece 36 of the door inner surface seal member 25. Therefore, the fluid resistance of the wall surface increases, the flow rate of warm air in the counter flow path 32b is reduced, and the amount of warm air in the heat insulating space 35 flowing out to the freezer compartment 6 can be reduced.

A part of the warm air toward the heat-insulating space 35 into the freezer compartment 6 a convection path 32b through the upper flows through the gap g ₁ of the seal delimiting portion 38 to seal pieces insulation space 37 a - 37 c, which seal strip By staying in the heat insulating spaces 37a to 37c, the heat transmitted to the freezer compartment 6 can be further reduced. Although the figure shows a case where four seal pieces 36 are provided, the above effect can be further enhanced by increasing this number.

[Embodiment 4]
FIG. 7 is an explanatory diagram of the freezer compartment of the refrigerator according to Embodiment 4 of the present invention and the main parts around it. Parts having the same or similar functions as those in the first embodiment are denoted by the same reference numerals.
In the present embodiment, a gasket protrusion 40 having a rectangular cross section extending substantially horizontally toward the inner side of the gasket 20 provided in the lower portion of the inner wall of the door 7 is provided.

The gasket protrusion 40 is formed with a plurality of heat insulating spaces 42a, 42b, 42c that are partitioned by partition pieces 41a, 41b, and when the gasket 20 is press-fitted and fixed in the concave groove 73 of the door 7, The door-side upper surface is in contact with or pressed against the lower surface of the protrusion 72.
And when the door 7 is closed, the gasket protrusion 41 located in the innermost part of the gasket protrusion 40 is located behind the flange 51a of the metal partition outer plate 51 (for example, the flange 51a). It is located more than twice the width in the front-rear direction).

Further, a gap g (for example, about 3 mm) that does not come into contact with the lower surface 43 of the gasket protruding portion 40 is formed between the lower surface 43 of the gasket protruding portion 40 and the upper surface of the internal partitioning portion 5 when the door 7 is closed. A convection channel 32c is formed by the gap g.
Further, the gasket 20 including the gasket protruding portion 40, the metal partition outer plate 51 of the internal partition 5 and the plastic partition outer plate 52a are in contact with or in close proximity to each other so that the gasket is partitioned from the freezer compartment 6. A heat insulating space 44 is formed.

  According to the present embodiment, since the gasket protrusion 40 is provided integrally with the gasket 20, the structure is simple, and the fluid resistance of the counter flow path 32 c is increased by the lower surface 43 of the gasket protrusion 40. The flow rate of the warm air flowing through 32c can be reduced, and the amount of warm air in the gasket heat insulating space 44 flowing into the freezer compartment 6 can be reduced.

  Moreover, the heat transmitted from the outside air and the gasket heat insulation space 44 to the gasket protrusion 40 can be reduced to the gasket heat insulation spaces 42a to 42c of the gasket protrusion 40, thereby reducing the heat transmitted to the freezer compartment 6, Furthermore, it is possible to suppress the occurrence of condensation on the metal partition outer plate 51 of the inner partition part 5 that is touched by outside air. Although FIG. 7 shows a case where the two partition pieces 41a and 41b are provided on the gasket protrusion 40, the sealing performance is further improved and the heat insulating effect can be further enhanced by increasing the number of the partition pieces 41a and 41b.

  Further, since the gasket protrusion 40 is configured to maintain a clearance g (for example, about 3 mm) between the lower surface of the gasket 7 and the interior partition 5 when the door 7 is closed, Even if this gap g varies due to the large amount of stored items stored in it or due to variations in the assembly state during mass production of the refrigerator, when the door 7 is closed, the lower surface 43 of the gasket protruding portion 40 is separated from the interior partition portion. Therefore, not only does the magnet 21 provided on the gasket 20 have an adsorbing property on the metal partition outer plate 51, but also abnormal noise due to contact friction, wear, etc. It does not occur.

  In addition, since the gasket protrusion 40 is made of polyvinyl chloride or the like so as to have flexibility, the gasket protrusion 40 itself is elastically deformed even if it hits the internal member when the door 7 is closed. The impact of contact can be absorbed and damage to the gasket 20 and the internal member can be prevented.

In the above description, the case in which the door inner surface sealing member 25 or the gasket 20 having the gasket protrusion 40 is provided in the lower part of the inner wall of the door 7 of the freezer compartment 6 is shown. You may provide in both lower parts.
Moreover, although the C-shaped attachment part 27 was provided in the main-body part 26 of the door inner surface sealing member 25, and this attachment part 27 was fitted and fixed to the protrusion part 72 of the door 7, it showed the case of attaching, May be attached to the inner wall of the door 7.

Moreover, although the case where the gasket 20 which has the door inner surface sealing member 25 or the gasket protrusion part 40 was provided in the door 7 of the freezer compartment 6 of the freezer was shown in said description, storage rooms and vegetable rooms other than the freezer compartment 6 were shown. These may also be provided on the door.
Moreover, in the above description, the case where the drawer inner door 7 is provided with the warehouse inner surface sealing member 25 or the gasket 20 having the gasket protrusion 40 is shown, but these may be provided on the openable door.

  DESCRIPTION OF SYMBOLS 1 Refrigerator main body, 5 inside partition part, 51 metal partition outer plate, 6 freezer compartment, 7 door, 71, 72 protrusion part, 20 gasket, 21 magnet, 25 door inner surface sealing member, 26 main body part, 27 attachment part, 28 Seal projection part, 29 Projection part heat insulation space, 30, 36 Seal piece, 31, 37 Seal piece heat insulation space, 32-32c Counter flow path, 33 Seal plate, 40 Gasket projection part, 41 Gasket surface, 41a, 41b Partition piece, 42 Insulated space, 43 bottom surface.

Claims (7)

A heat insulating box having an opening on the front surface, an internal partition having a metal partition outer plate on the front side and partitioning the heat insulating box, and a door for opening and closing the partitioned front opening, A gasket having a magnet and a door inner surface sealing member are provided on the inner wall of the door,
The door inner surface sealing member is constituted by a main body portion attached to the inner side of the door and a plurality of seal pieces hanging from the main body portion at a predetermined interval,
When the door is closed, at least the innermost seal piece is located on the back side of the metal partition outer plate of the internal partition, and the lower ends of the plurality of seal pieces and the upper surface of the internal partition configured such that a gap is formed between the,
The door inner surface sealing member is made of a hard plastic, and a main body portion is formed of a mounting portion to the door and a seal projection provided inside the storage portion of the mounting portion to form a heat insulating space; A refrigerator characterized by being integrally formed with a plurality of sealing pieces that are suspended at a predetermined interval and formed with a heat insulating space . A heat insulating box having an opening on the front surface, an internal partition having a metal partition outer plate on the front side and partitioning the heat insulating box, and a door for opening and closing the partitioned front opening, A gasket having a magnet and a door inner surface sealing member are provided on the inner wall of the door,
The door inner surface sealing member is constituted by a main body portion attached to the inner side of the door and a plurality of seal pieces hanging from the main body portion at a predetermined interval,
When the door is closed, at least the innermost seal piece is located on the back side of the metal partition outer plate of the internal partition, and the lower ends of the plurality of seal pieces and the upper surface of the internal partition configured such that a gap is formed between the,
A refrigerator, wherein lower end portions of a plurality of seal pieces of the door inner surface seal member are integrally connected with a seal plate made of soft plastic . The lower end portion of the plurality of seal segments of the door inner surface sealing member, refrigerator of claim 1 Symbol mounting, characterized in that integrally connected to a sealing plate made of soft plastic. Of the plurality of seal pieces of the door inner surface seal member, lower end portions of the seal pieces at both ends are bent inward to form a substantially L shape, and the lower end portions of the seal pieces provided between the seal pieces at both ends Is formed in a substantially T shape, and a slit-like gap is provided between the lower end portions of adjacent seal pieces.
The refrigerator according to claim 1 . The counter flow path is formed by a gap formed between a lower end portion or a seal plate of a seal piece of the door inner surface seal member and an upper surface of the internal partition portion. The refrigerator according to crab. 6. A protruding portion that protrudes to the inside of the cabinet is provided on the inner wall surface of the door, and an attachment portion provided on a main body portion of the door inner surface sealing member is fitted and attached to the protruding portion. The refrigerator in any one of. A heat insulating box with an opening on the front surface, an internal partition having a metal partition outer plate on the front side and partitioning the heat insulating box, a door for opening and closing the partitioned front opening, and a magnet on the inner side And having a gasket attached to the door,
Provided with a gasket protrusion portion having a rectangular cross section in which a plurality of heat insulation spaces are formed by partitioning pieces on the inner side of the gasket,
When the door is closed, the innermost gasket surface of the gasket protrusion is located on the back side of the metal partition outer plate of the internal partition, and the lower surface of the gasket protrusion and the internal partition A refrigerator in which a gap is formed between the upper surface of the refrigerator and a convection channel is formed by the gap.

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