JP2011237115A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator capable of preventing the heat of a dew-proofing pipe from entering the refrigerator by radiating it to the outside of the refrigerator using a magnet holding part.SOLUTION: The refrigerator includes a refrigerator body 21 and a door. The door includes a gasket 40 which is adsorbed to a peripheral edge 41a of a front side opening 44 of the refrigerator body 21. The gasket 40 includes a fitting part 49 that is fitted to the door, a magnet holding part 48 which has a magnet 47 inside and is adsorbed to the peripheral edge 41a, and a flexible part 50 for connecting the fitting part 49 to the magnet holding part 48 in shrinkable manner. A fin 51 that extends to the outside of the refrigerator is formed at the magnet holding part 48 in a heat radiation structure that prevents the external heat from entering into the refrigerator.

Description

  The present invention relates to a refrigerator in which a magnet gasket with a built-in magnet is attached to the periphery on the back side of a door.

  Conventionally, in this type of refrigerator, the magnetic force of the magnet gasket is strengthened with a simple configuration, and the heat conduction performance is improved to improve the cooling capacity and the ability to prevent dew condensation outside the cabinet (for example, Patent Document 1). reference).

  FIG. 5 shows a conventional refrigerator described in Patent Document 1. As shown in FIG. As shown in the figure, the refrigerator body forms a storage space inside by the inner box 4 provided via the outer box 2 and the heat insulating layer 3, and the front opening of the storage space is divided by several heat insulating partition walls. A plurality of independent spaces are formed in the cabinet, and the refrigerator compartment 6 and other storage rooms are formed.

  The figure is a cross-sectional view of the main part of the refrigerator compartment door 9, with a magnet gasket 11 attached, and sealing the gap between the flange 2a formed on the periphery of the front opening of the outer box 2 and the periphery on the back side of the door 9. The inside of the refrigerator compartment 6 and the outside are thermally cut off, and heat leakage is prevented together with the heat insulating material 3 filled between the inner and outer boxes on the wall surface of the main body.

  Further, on the back side of the flange 2a of the outer box 2, as a heating source for preventing the flange, a part of which is exposed on the inside 6 side, from being cooled and condensed by cooling in the refrigerator compartment 6, A high-temperature refrigerant pipe 12 that is a part of the condenser constituting the refrigeration cycle is provided.

  The magnet gasket 11 has a cross-sectional shape composed of a magnet holding portion 13 for holding a magnet 17, an attachment portion 15 on the door inner plate 14 side, and a thin bag-like portion 16 that connects these in a stretchable manner, and is a soft synthetic resin. Is extruded into a long string.

  The magnet holding part 13 is not a bag shape, but a magnet gasket 11 that has a substantially U-shaped cross section with the side surface of the main body serving as an adsorbing part open, and adsorbs the outer surface 17a of the magnet directly to the flange part 2a. It has a ditch | groove 17c and it can suppress that the heat | fever outside a warehouse is conducted to the magnet 17 from the collar part 2a of an outer box, and penetrate | invades into the inside 6 side.

JP 2005-188840 A

  However, in the above conventional configuration, the magnet 17 of the magnet gasket 11 forms the concave groove 17c on the surface and suppresses the heat conduction that absorbs the heat of the dew prevention pipe 12 from the outside to the inside, but the heat is There was a risk of dissipating heat through the inside of the magnet into the refrigerator compartment 6. The heat of the dew proof pipe 12 is conducted to the inner side of the ridge 2a regardless of the concave groove 17c, and to the magnet of the magnetic powder material having a relatively high thermal conductivity exposed from the bag-like portion. Therefore, there was a problem that it did not contribute much to the energy saving effect.

The present invention solves the above-mentioned conventional problems, and aims to provide a refrigerator that radiates heat from a dew proof pipe to the outside by a magnet holding portion and prevents entry into the warehouse. It is.

  In order to solve the above-described conventional problems, the refrigerator of the present invention includes a refrigerator main body, a door, and the door includes a gasket that adsorbs to a peripheral edge portion of a front opening of the refrigerator main body, and the gasket is attached to the door. In the refrigerator comprising: a mounting portion to be attached; a magnet holding portion that holds a magnet inside and is attracted to the peripheral edge portion; and a flexible portion that connects the mounting portion and the magnet holding portion in a telescopic manner. In this, a fin extending outside the box is formed.

  As a result, heat from the outside of the cabinet, for example, heat radiated from the dew-proof pipe, travels around the periphery and enters the magnet from the magnet holding member, and the heat obtained by the magnet is dissipated outside the cabinet by the fins. Heat intrusion can be prevented.

  The refrigerator of this invention can suppress the heat | fever which penetrate | invades from the outside through a gasket, and can reduce the power consumption of a refrigerator.

Front view of the refrigerator in Embodiment 1 of the present invention Sectional drawing of the refrigerator in Embodiment 1 of this invention The expanded sectional view of the door gasket part in Embodiment 1 of this invention Sectional view of the gasket of the present invention Expanded sectional view of the conventional door gasket

  1st invention has a refrigerator main body, a door, and the said door has a gasket adsorb | sucked to the peripheral part of the front-surface opening part of the said refrigerator main body, The said gasket hold | maintains a magnet in the attachment part attached to the said door In the refrigerator having a magnet holding part that is attracted to the peripheral edge part and a flexible part that connects the attachment part and the magnet holding part in a telescopic manner, the magnet holding part is formed with a fin extending outside the box. As a result, the gasket is heated from the dew-proof pipe through the iron plate of the outer box of the refrigerator body, and the gasket holds the magnet so that heat is transferred to the magnet part with good heat transfer and the heat is about to enter the chamber from the magnet. The fins formed in the part can radiate the heat of the magnet to the outside of the box, suppress the heat intrusion into the box, and exhibit an energy saving effect.

  According to a second aspect of the present invention, in the first aspect of the present invention, when the gap is formed between the fin and the peripheral portion with the door closed, the fin ensures a heat dissipating area where the fin contacts the air. Can be ensured.

  According to a third invention, in the first or second invention, the heat radiation capacity is further improved by further increasing the heat radiation area of the fin by providing a plurality of fins.

Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the same reference numerals are given to the same configurations as those of the conventional example or the above-described embodiments, and detailed description thereof will be omitted.
The present invention is not limited to the embodiments.

(Embodiment 1)
1 is a front view of a refrigerator according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view of the refrigerator according to Embodiment 1 of the present invention.

  In FIG. 1, the refrigerator main body 21 has a refrigerated room 22, an ice making room 23, a switching room 24, a freezing room 25, and a vegetable room 26 in order from the top. An operation unit 27 is disposed in the vicinity of the center of the refrigerator compartment door 22a of the refrigerating chamber 22, and an operation board (not shown) is formed inside the operation part 27. Is provided with an illuminance sensor (not shown) as illuminance detection means. The illuminance sensor 36 can be specifically configured by using an optical sensor having a photodiode or phototransistor as a base element.

  In the figure, the heat insulating box body of the refrigerator main body 21 is foamed in a space between the outer box 41 and the inner box 42, an outer box 41 mainly using a steel plate, an inner box 42 molded of a resin such as ABS. It is comprised with the foaming heat insulating materials 43, such as hard foaming urethane with which it fills, and it heat-insulates with the circumference | surroundings and is heat-insulated into the some storage chamber by the partition wall. A refrigerating room 22 is provided at the top, a switching room 24 or an ice making room 23 is provided side by side at the bottom of the refrigerating room, a freezing room 25 is disposed at the bottom of the switching room 24 and the ice making room 23, and a vegetable room 26 is disposed at the bottom. In addition, a door is formed in the front opening of the refrigerator main body in order to partition outside air from the front of each storage room.

  The refrigerator compartment 22 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it does not freeze for refrigerated storage, and the lowermost vegetable compartment 26 is set to 2 ° C. to 7 ° C., which is the same or slightly higher temperature setting as the refrigerator compartment 22. In addition, the freezer compartment 25 is set in a freezing temperature zone and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. or − It may be set at a low temperature of 25 ° C.

  The switching chamber 24 is not only refrigerated set at 1 ° C to 5 ° C, vegetables set at 2 ° C to 7 ° C, and frozen at a temperature set usually at -22 ° C to -15 ° C. It is possible to switch to a preset temperature range between the freezing temperature ranges. The switching room 24 is a storage room provided with an independent door arranged in parallel with the ice making room 23, and is often provided with a drawer-type door.

  In the present embodiment, the switching chamber 24 is a storage room including the temperature range of refrigeration and freezing. However, the refrigeration is performed by the refrigeration room 22 and the vegetable room 26, and the freezing is performed by the freezing room 25. A storage room specialized for switching only the temperature zone in the middle of freezing may be used. Moreover, the storage room fixed to refrigeration may be sufficient as the demand for frozen foods has increased in recent years, for example, frozen food.

  The ice making chamber 23 makes ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerator compartment, and an ice storage container (not shown) arranged in the lower part of the room. To store).

  The top surface of the heat insulating box has a stepped recess in the rear direction of the refrigerator. A machine room is formed in the stepped recess, and the compressor 28 and water are removed from the machine room. Houses high-pressure components of the refrigeration cycle such as a dryer (not shown). That is, the machine room in which the compressor 28 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 22.

  In this embodiment, the matters relating to the main part of the invention described below are of the type in which a compressor room is provided by providing a machine room in the rear region of the lowermost storage room of a heat insulation box that has been generally used conventionally. You may apply to the refrigerator main body 21. FIG.

A cooling chamber 29 for generating cold air is provided on the back surface of the freezer compartment 25 and is partitioned from an air passage. Between these air passages, a cool air carrying air passage to each chamber having heat insulation properties, and each storage chamber is insulated. A rear partition wall configured to partition is configured. In addition, a partition plate for separating the freezing chamber discharge air passage and the cooling chamber 29 is provided. A cooler 30 is disposed in the cooling chamber. In the upper space of the cooler 30, cold air cooled by the cooler 30 by a forced convection method is transferred to a refrigerator room, a switching room, an ice making room, a vegetable room, and a freezer room. A cooling fan 31 for blowing air is disposed.

  Further, a radiant heater 32 made of glass tube is provided in the lower space of the cooler 30 for defrosting the frost and ice adhering to the cooler 30 and its surroundings at the time of cooling. A drain pan for receiving defrosted water, a drain tube penetrating from the deepest part to the outside of the warehouse is configured, and an evaporating dish is configured outside the downstream side of the warehouse.

  FIG. 3 is a cross-sectional view of a main part in the first embodiment of the present invention. FIG. 4 is a sectional view of the gasket. FIG. 3 is a cross-sectional view in which the opening of the refrigerator compartment 22 is sealed with a gasket 40 attached to the refrigerator compartment door 22a.

  Further, the outer box 41 of the refrigerator main body 21 forms a tightly bent shape at a position that becomes the peripheral edge 41a of the outer box 41 constituting the front opening 44, and further forms a folded portion 41b. And the inner box 42 is inserted in the folding | returning part 41b.

  Further, on the back side of the peripheral portion 41a, as a heating source for preventing the surface of the peripheral portion 41a from being cooled by the cooling in the refrigerator compartment 22 between the folded portion 41b and the outer box 41, a refrigeration cycle is used. A connected dewproof pipe 45 is provided. Then, the space between the outer box 41 and the inner box 42 is filled and foamed with a foam heat insulating material 43 such as hard foam urethane.

  A door outer plate 53 and a door inner plate 46 forming the refrigerator compartment door 22a are provided, and the door inner plate 46 is formed with a mounting groove 46a for attaching the gasket 40. The gasket 40 includes a magnet holding portion 48 that holds the magnet 47 therein, an attachment portion 49 that is inserted and attached to the attachment groove 46a, and a thin-walled flexible member that connects the attachment portion 49 and the magnet holding portion 48 in a telescopic manner. The unit 50 is configured. The magnet holding portion 48 has a substantially rectangular cross section.

  The substantially vertical surface portion 48b of the magnet holding portion 48 formed so as to rise in a substantially vertical direction with respect to the attracting surface portion 48a of the magnet holding portion 48 that is attracted to the peripheral edge portion 41a by magnetic force is provided with a fin 51, and the base 51a of the fin 51 is provided. It is formed integrally with the magnet holding part 48, and the free end part 51b is formed to extend outward from the refrigerator.

  Of each surface of the magnet holding portion 48 formed in a substantially rectangular shape, a fin 51 is formed on a substantially vertical surface portion 48b that is the surface closest to the dew prevention pipe 45.

  Further, a gap 52 serving as an air layer is formed between the fin 51 and the peripheral edge 41a.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, as described above, the surface of the peripheral edge portion 41 a is cooled by the cooling in the refrigerator compartment 22 in the peripheral edge portion 41 a of the front opening of the refrigerator compartment 22 configured in the refrigerator main body 21. In order to prevent the cooled peripheral edge portion 41a from condensing, the heat of the dew-proof pipe 45 serving as a heat source embedded in the peripheral edge portion 41a is thermally conducted to the metal peripheral edge portion 41a and is in close contact with the peripheral edge portion 41a of the gasket 40. Is transmitted to the magnet holding part 48.

At this time, the fin 51 formed in the magnet holding portion 48 closest to the dew prevention pipe 45 conducts heat of the dew prevention pipe 45 from the base portion 51a to the free end portion 51b to provide a gap provided around the fin 51. The heat radiation area of the fin 51 is secured by the part 52 and the heat of the dew proof pipe 45 is radiated. Accordingly, heat conduction to the magnet 47 can be suppressed, and external heat absorbed into the refrigerator compartment 22 through the gasket 40 can be reduced.

  In addition, since the plurality of fins 51 form gaps 52 between the fins 51 in the substantially vertical surface portion 48b to further increase the heat radiation area for dissipating the heat of the dew prevention pipe 45, further into the refrigerator compartment 22. It is possible to reduce heat absorption.

  The gasket 40 is formed by extrusion molding with a soft synthetic resin material, and the fins 51 are integrally molded. In addition to the refrigerating chamber 22, the gasket 40 is also provided for the ice making chamber 23, the switching chamber 24, the freezing chamber 25, the peripheral portion 41a of the vegetable chamber 26, and the dew-proof pipe 45 embedded between partition walls (not shown). Constitutes the fin 51 in the same manner as described above, and can reduce heat absorption into the room.

  In addition, as described in the refrigerator compartment 22, the dew-proof pipe 45 may be provided only in the peripheral portion 41a of the freezer room 25 and the ice making room 23 where the room is cooled to a low temperature, and the dew-proof pipe 45 is embedded. You may form the fin 51 only in the part of the gasket 40 corresponding to the peripheral part 41a. As a result, the heat penetration of the dew proof pipe 45 into the cabinet can be reduced.

  As described above, the refrigerator according to the present invention can be applied to, for example, a magnet gasket of a household or commercial refrigerator.

21 Refrigerator body 22a Refrigeration room door 40 Gasket 41a Peripheral part 44 Front opening part 47 Magnet 48 Magnet holding part 49 Mounting part 50 Flexible part 51 Fin 52 Gap part

Claims (3)

The refrigerator main body, the door, and the door have a gasket that adsorbs to the peripheral edge of the front opening of the refrigerator main body, the gasket holds the magnet inside and adsorbs to the peripheral edge A refrigerator comprising: a magnet holding part that performs, and a flexible part that connects the attachment part and the magnet holding part in a telescopic manner, wherein the magnet holding part is formed with a fin extending out of the refrigerator. . The refrigerator according to claim 1, wherein a gap is formed between the fin and the peripheral edge with the door closed. The refrigerator according to claim 1 or 2, wherein a plurality of fins are formed.