JP4280243B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator configuration that reduces heat leakage from a peripheral edge of an opening of a refrigerator, particularly a heat insulating partition wall that partitions a plurality of storage rooms.

  In recent years, in the refrigerator, in order to reduce power consumption, various technical measures have been studied not only for cooling control but also for a cabinet heat insulating structure. Among them, the heat leakage from the storage room accounts for a large proportion of the leakage from the gap seal portion with the door in the front opening of the main body, and further improvement of the configuration to reduce the amount of heat leakage has been demanded. .

  The conventional configuration will be described below with reference to FIG. The storage chambers (58) and (59) provided above and below are divided by a heat insulating partition wall (55), and the bottom and ceiling of the storage chambers (58) and (59) are located at the front of the heat insulating partition wall (55). A front partition (61) that forms an opening is disposed.

  The front partition (61) includes a front partition plate (62) formed with a front surface and a dew-proof heating body attached to the rear surface, and the heat insulating partition wall provided to cover the rear surface of the front partition plate (62) ( 55) and a partition cover (63) connected to the front surface portion, and a heat insulating body made of polystyrene foam (64) filled in a space formed between the partition front plate (62) and the partition cover (63). .

  The front opening of each of the storage chambers is closed with heat insulating doors (58a) (59a). A gasket (65) is attached to the peripheral part of each door (58a) (59a), and when the door is closed, the magnet part of the gasket (65) is attracted to the front surface of the front partition plate (62) for storage. The chamber (58) (59) seals the gap between the main body and the door (58a) (59a), and the partition front plate (62) is a steel plate made of a magnetic material to adsorb the magnet part of the gasket Therefore, the internal and external temperatures of the storage chambers (58) and (59) are conducted through the front partition plate (62), and the amount of heat leakage is large.

In addition, on the back side of the front partition plate (62), the front plate surface is cooled by the heat conduction of the cool air in the storage room, and prevents condensation below the dew point temperature. Is installed as a dew-proof heater to increase the plate surface temperature, but this heat is conducted to the indoor side through the front partition plate (62), thereby adversely affecting the storage room temperature. To cope with this, a so-called double seal in which a separate seal fin (68) is installed on the storage chamber side of the gasket (65) and the tip of the seal fin (68) is brought into contact with the partition cover (63). A configuration in which heat leakage due to indoor and outdoor air circulation is blocked by a method is widely adopted (see, for example, Patent Document 1).
JP 10-259983 A

  However, since the partition cover (63) is connected and integrated with the front partition plate (62) provided with the dew-proof heater, even if the gasket (65) and the seal fin (68) are installed. Since the partition cover (63) extends to the indoor side of the seal fin (68), the external heat is transferred from the partition front plate (62) through the partition cover (63) to the storage chamber (58). ) Enters the space and decreases the cooling efficiency. Conversely, the heat of the partition cover (63), which is on the indoor side from the seal fin (68) and is cooled, is transferred to the partition front plate (62) in contact, so that the front partition plate (62) is easily cooled. In particular, when the storage room is a low-temperature freezer room (59), it is necessary to increase the dew-proof heat generation amount, which increases the amount of heat leakage and increases power consumption.

  The present invention has been made in consideration of the above points, and it is effective not only for air conduction but also for heat conduction not only through air conduction but also heat conduction through partition wall constituent members in the heat insulating partition wall portion that partitions the storage room. An object of the present invention is to provide a refrigerator that can cut power consumption and reduce power consumption with a simple configuration without increasing costs.

In order to solve the above problems, the refrigerator of the invention of claim 1 includes a plurality of storage chambers formed of heat insulating walls, a partition between the adjacent storage chambers, and a bottom plate of the upper chamber and a ceiling plate of the lower chamber. The formed heat insulating partition wall and a magnetic material that forms a storage chamber opening surface that is arranged in front of the heat insulating partition wall so as to form a front surface portion of the heat insulating partition wall and is provided with a dew-proof heater on the back surface. A front plate formed of a body metal partition front plate, a partition cover connected to a front portion of the heat insulation partition wall provided on the back surface of the partition front plate, and a heat insulator filled between the partition front plate and the partition cover A partition, a door that individually closes the front opening of each storage chamber, a gasket that is attached to the peripheral edge of the door, and the magnet portion adsorbs to the front plate surface when the door is closed; It consists of a Shiruhire attached to the door in the plate, before The front end of the bottom plate or ceiling plate of the heat insulating partition wall extends forward along the outer surface of the partition cover and abuts against a step formed on the partition cover, and the front end of the seal fin contacts the front end. It is characterized by touching.

  According to the refrigerator of the present invention, the heat of the front partition plate and the high-temperature external heat generated by the dew-proof heater are not transmitted to the storage chamber bottom plate or the ceiling plate forming the thermally insulated partition wall in a thermally separated state. Therefore, the indoor temperature can be prevented from being adversely affected, and the partition cover and the front partition plate are prevented from being cooled by the indoor cold air. It can be cut off efficiently and power consumption can be reduced with a simple configuration.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The refrigerator main body (1) which shows the schematic longitudinal cross-sectional view in FIG. 1 forms the storage space in the inside by the inner box (4) provided through the outer box (2) and the heat insulation layer (3), By dividing the front opening of the storage space with several insulated partitions (5), a plurality of independent spaces are formed in the cabinet, each of which is a refrigerator (6), ice making room (7), vegetable Cooling control is performed to a predetermined temperature range suitable for the storage temperature of food such as the room (8) and the freezing room (9).

  Opening doors such as a refrigerator compartment door (6a), an ice making compartment door (7a), and a vegetable compartment door (8a) are provided at the opening of each storage compartment, and in each door, the refrigerator compartment door (6a) The hinges attached to the top and bottom of one side of the front opening are pivotally supported by pivoting one side, but the ice making room (7a) other than the refrigeration room, the vegetable room (8a), etc. The storage room door is formed in a drawer type.

  As shown in FIG. 2, the detailed cross-sectional shape of the partition wall (5) that divides the adjacent storage room, for example, the vegetable room (8) and the freezing room (9), is the bottom plate of the upper vegetable room (8). 8b) and a ceiling plate (9b) of the lower freezer compartment (9) are formed, and a molded heat insulating material (10) of a polystyrene foam resin having a predetermined thickness is interposed between the bottom plate (8b) and the ceiling plate (9b). The heat insulating partition is configured.

  A front partition (11) is connected to the front portion of the heat insulating partition wall (5). The front partition (11) includes a partition front plate (12) made of a magnetic metal plate having lower and upper opening surfaces of the storage chambers (8) and (9), and the front partition plate (12). A partition cover (13) that is provided in a box shape so as to cover the back surface of the heat insulating partition wall (5) and has a rear portion coupled to the front portion of the heat insulating partition wall (5). The space between 13) is filled with a molded foam heat insulating material (14) similar to the heat insulating material (10).

  The partition front plate (12) is provided over almost the entire width of the storage room, and the edge (12a) in the vertical direction is bent inward to increase the strength, and is substantially U-shaped in cross section. It is said. And in the width direction of the back side central part, the refrigerant pipe through which the high-temperature refrigerant discharged from the compressor of the refrigeration cycle flows so as to be located between the upper and lower magnet parts of the adjacent gasket (15) of the door (16) is attached. This refrigerant pipe (16) is arranged over the flanges of the outer box (2) at the periphery of the front opening in addition to each partition plate, and the partition plate is thermally conducted to the steel plate surface. (12) prevents the surface from becoming dewed at low temperatures.

  The partition cover (13) is provided at the front portion of the heat insulating partition wall (5) so as to cover the bent end edge (12a) of the partition front plate (12), and the front end portion of the partition cover (13) The bottom of the vegetable compartment (8), which is the upper storage room, and a part of the front part of the ceiling surface of the lower freezer compartment (9) are formed.

  And the bottom plate (8b) of the vegetable compartment which forms the upper surface of the said heat insulation partition wall (5) extends the front end ahead along the upper surface of the said partition cover (13), and a rising rib (5a) is a partition cover It arrange | positions so that it may contact | abut to the step part (13a) formed in the front part.

  The front opening of each storage chamber is closed by heat insulating doors (8a) and (9a). A gasket (15) is attached to the periphery of each door (8a) (9a), and when the door is closed, the magnet part of the gasket (15) is attracted to the front surface of the partition front plate (12), which is a magnetic material. By doing so, the gap | interval of a storage chamber (8) (9) main body and a door (8a) (9a) is sealed.

  Thus, the seal fin (18) is placed on the indoor protrusion (17a) of the door inner plate (17) which is located on the indoor side of the gasket (15) and forms the indoor side of the vegetable compartment door (8a). Wearing. The seal fin (18) comprises an attachment portion (18a) to the protrusion (17a) of the door inner plate and a soft fin portion (18b). When the vegetable compartment door (8a) is closed, the fin portion ( The tip of 18b) is disposed so as to contact the rising rib (5a) at the front end of the heat insulating partition wall (5).

  In addition, a second fin (18c) that extends downward from the seal fin (18) to the gasket (15) side and contacts the top surface of the partition cover (13) when the door is closed is integrated from the attachment portion (18a). The second fin (18c) forms two independent seal spaces in the throat portion between the gasket (15) and the seal fin (18).

  The partition cover (13) is separated from the partition front plate (12) by the presence of two independent seal spaces formed by the gasket (15), the fin portion (18b) of the seal fin (18), and the second fin (18c). In the space with the door inner plate (17) leading to the inside of the storage chamber (8), heat transfer due to air convection is suppressed, and heat can be effectively shut off.

And especially according to the said structure, at the time of closing of a vegetable compartment door (8a), a soft fin part (18b) of a seal fin (18) front-end | tip of the heat insulation partition wall (5) which forms the baseplate (8b) of a vegetable compartment Since it contacts the rising rib (5a) at the front end, the indoor side from the bottom plate (8b) is thermally blocked from the partition cover (13), and the heat of the dew-proof heater (16) is transferred to the partition front plate (12 ) To the partition cover (13) and the temperature rises, heat is not transferred to the bottom plate (8b) side, and deterioration of the cooling capacity in the indoor space from the seal fin (18) can be prevented. Conversely, the cooling atmosphere in the vegetable compartment (8) is also thermally shut off from the heat insulating partition wall (5) and the partition cover (13), so the indoor cool air does not cool the partition cover (13). Heat transfer to the front plate (12) is also reduced, so that the partition front plate (12) can be cooled and dew can be reduced, and power consumption can be reduced by reducing heat leakage from both indoors and outdoors. Can do.

Next, another embodiment of the present invention will be described. In this embodiment, the seal fin (28) is attached to the front end of the heat insulating partition wall (25) forming the ceiling plate (19b) of the freezer compartment (9) instead of the door inner plate (27), As shown in FIG. 3 in which the same reference numerals are assigned to the same parts as in the above embodiment, the insulating partition wall (25) that forms the ceiling surface (19b) of the freezer compartment (9) disposed in the lower part of the vegetable compartment (8). Inside the door which extends the front end forward and fits the attachment portion (28a) of the seal fin (28) to the tip portion thereof, and the tip of the fin portion (28b) forms the indoor side of the freezer compartment door (19a) It is characterized by being brought into contact with the protruding portion (27a) of the plate (27).

  Further, a second fin (28c) is attached to the gasket (15) side of the seal fin (28) from the attachment portion (28a) so as to extend downward and the front end abuts against the surface of the door inner side (27) when the door is closed. The second fin (28c) forms two independent seal spaces in the throat portion between the gasket (15) and the seal fin (28).

  Even with this configuration, a double independent space is formed with respect to the gap between the main body side and the door side, so that the partition cover (23) through the ceiling plate (19b) that forms the room, as well as air conduction. The heat transfer to can also be suppressed in the same way as in the previous embodiment. However, since this configuration attaches the seal fin (28) to the main body side, it is stored as in this embodiment. The seal fin (28) is less visible from the outside when it is adopted as the structure on the ceiling plate side of the room, and the appearance is better.

  In addition, although the said Example demonstrated the structure of the heat insulation partition wall (5) or (25) part between a vegetable compartment (8) and a freezer compartment (9) as a partition plate, it is not restricted to this, A refrigerator compartment Needless to say, the present invention can also be applied to a partition wall configuration between (6) and the ice making chamber (7) and other storage chambers.

  The present invention is configured as described above, and with a simple configuration, heat conduction between the storage chamber and the external partition front plate can be achieved without increasing the number of components and complicating the configuration as a refrigeration chamber or impairing the appearance. It can be effectively cut off and heat leakage can be reduced.

  INDUSTRIAL APPLICATION This invention can be utilized for the refrigerator provided with the heat insulation partition wall which divides between storage rooms.

It is a schematic longitudinal cross-sectional view of the refrigerator which shows one Embodiment of this invention. It is an expanded sectional view which shows the detailed structure of the heat insulation partition wall part of FIG. It is sectional drawing of the same part as FIG. 2 which shows the other Example of this invention. It is a longitudinal cross-sectional view which shows the structure of the conventional partition plate part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator body 2 Outer box 5, 25 Heat insulation partition wall 5a Standing rib 6 Refrigeration room 7 Ice making room 7a Ice making room door 8 Vegetable room 8a Vegetable room door 8b Vegetable room bottom plate 9 Freezing room 9a Freezing room door 9b, 19b Freezing room ceiling board 10 Molded insulation 11 Front partition
12 Front partition plate 12a Bent edge 13, 23 Partition cover
13a Step 14 Molded foam insulation 15 Gasket
16 Refrigerant pipe 17, 27 Door inner plate 17a, 27a Projection
18, 28 Seal fin 18a, 28a Attachment 18b, 28b Soft fin
18c, 28c Second fin

Claims (2)

A plurality of storage chambers formed of heat insulating walls, a heat insulating partition wall that partitions the adjacent storage chambers and forms a bottom plate of the upper chamber and a ceiling plate of the lower chamber, and a heat insulating partition connected to the heat insulating partition wall A partition plate made of magnetic metal that forms a storage chamber opening surface that is disposed at the front portion of the wall so as to constitute a front portion of the wall and that is provided with a dew-proof heating body on the back surface. In addition, the front cover of each of the storage chambers is individually closed by a partition cover connected to a front portion of the heat insulating partition wall, a front partition formed by the partition front plate and a heat insulator filled between the partition covers. A door, a gasket that is attached to the peripheral edge of the door, and when the door is closed, the magnet portion is attached to the front plate surface of the partition , and a seal fin that is attached to the inner plate of the door from the gasket . Partition the front end of the bottom plate or ceiling plate Is brought into contact with the step portion formed on the partition cover extends forward along the bar of the outer surface, a refrigerator, characterized in that the tip of the Shiruhire was into contact with this front end. Refrigerator according to claim 1, wherein the gasket side of the installation position of Shiruhire abuts against the front end of the partition cover and door inner plate, characterized in that a second Shiruhire sealing the gap.

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