JP2515742Y2 - refrigerator - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for storing foods and the like.

[0002]

2. Description of the Related Art In recent years, as a refrigerator, a two-door type having a plurality of cooling chambers such as a freezing chamber and a refrigerating chamber has been mainly used so that the operating temperature can be classified according to the purpose.
Generally, in the refrigerator as described above, for example, as shown in FIG. 4, rubber having elasticity for sealing each cooling chamber in the main body 21 with each of the freezing chamber door 22 and the refrigerating chamber door 23 is used. A substantially tubular packing gasket 25 made of is attached to the peripheral portions of the freezer compartment doors 22 and the refrigerator compartment doors 23. Further, a compressor 24 for cooling each cooling chamber is installed at the rear lower end of the main body 21.
The mounting of the packing gasket 25 as described above and the structure thereof will be described below with reference to FIG. 5, which is a sectional view taken along the line BB in FIG. 4, of the packing gasket 25 arranged on the freezer compartment door 22 as an example. .

The packing gasket 25 is used for the freezer compartment door 2.
When the 2 is closed, the door sash 2 is a synthetic resin door exterior body.
7, a packing gasket mounting portion 25a having a substantially triangular cross section formed on one end side of the packing gasket 25 is press-fitted into an insertion hole 27b formed in the peripheral surface of the body 7 facing the main body 21, and the door sash 27 It is fixed to the packing gasket holding portion 27a at the peripheral edge of the.

In the tubular portion of the packing gasket 25, a magnet 28 is provided along the back side of the surface facing the flange 30a formed on the front peripheral edge of the main body exterior member 30, and a magnet having elasticity such as rubber. Cover 2
5c is covered and held. And the freezer compartment door 22
When is closed, the packing gasket 25 is in close contact with the flange 30a by the magnetic attraction between the flange 30a and the magnet 28. In this way, the main body 21 and the freezer compartment door 22 are sealed by the packing gasket 25 so that the cold air in the freezer compartment does not escape.

However, the flange 30a and the packing gasket 25 are cooled to some extent by the cold air in the freezing compartment, and when the temperature of the outside air is high and the humidity is high,
The flange 30a and the packing gasket 25
Condensation phenomenon occurs on the. Therefore, in order to prevent this dew condensation , both of the two 30
A dp condenser 29 for heating the a.25 is provided, and this dp condenser 29 is usually about 10
The temperature is set to be higher by ℃, and the flange 30a and the packing gasket 25 are warmed by the heat transfer action to bond them.
It plays the role of preventing dew .

[0006]

[Problems to be solved by the invention] However, the flange 3
0a may be a magnetic material that generates a magnetic attraction force with the magnet 28, but in consideration of economy, a steel plate mainly made of iron is used. Therefore, since iron is a material having good thermal conductivity, the flange 30a heated by the dp condenser 29 has a relatively high temperature. Therefore,
Due to the magnetic force, the magnet 28 that is in close contact has a high temperature, and the magnet cover 25 that covers the magnet 28
The temperature of c also rises, and the temperature of the packing skirt portion 25e connected to it also rises. Thus, the flange 30a and the packing skirt 25 facing the freezing chamber
Heat invades the freezing chamber from e, etc.
Heat is absorbed by the refrigerating capacity of the compressor 24. Therefore, the above configuration has a problem that extra power is required.

[0007]

In order to solve the above-mentioned problems, the refrigerator according to the first aspect of the present invention has a cooling chamber having an opening.
A main body having a door and a door that opens and closes the opening,
It has a structure that is sealed by a gasket that is placed
Transfers heat to the main body contacting part where the gasket contacts the main body
To prevent dew condensation on the contact part between the body and gasket.
A heat member is provided and the
On the back surface of the contact surface, there is a magnet that attaches the contact surface to the contact part of the main unit.
In the installed refrigerator, the above gasket
The air layer from the cooling chamber side to the magnet back side of the magnet is
A first heat insulating member having and covering, and cooling the first heat insulating member
The second disconnection that has an air layer that covers from the chamber side to the magnet back side.
It is characterized by having a double heat insulation structure that insulates heat with a heat member .

In order to solve the above-mentioned problems, a refrigerator according to a second aspect includes a main body having a cooling chamber having an opening, and
The door for opening and closing the opening is a gasket installed on the door.
It has a configuration which is more closed in bets, in the body, gaskets
Heat is transferred to the main body abutting part where the
A heat generating member is provided to prevent dew condensation on the contact area
In the refrigerator it is, the main body in the gasket
Projected to the body side at the part located on the cooling chamber side from the contact part
However, when the door is closed, it makes surface contact with the main body and
And a substantially cylindrical protruding elastic portion for blocking the
The protruding elastic part has an air vent hole that allows the air inside the protruding elastic part to pass.
Is formed, and the protruding elastic portion is in contact with the main body.
It is characterized in that the contact portion is connected through a flat portion .

[0009]

With the configuration of claim 1, heat from the heat generating member is generated.
The heat generated by the magnet heated by the
The first disconnection that covers the air layer from the chamber side to the magnet back side.
Install the heat member and the first heat insulating member from the cooling chamber side to the magnet rear surface.
A second heat insulating member having an air layer reaching the side and covering it.
It will be blocked by the double heat insulation structure. Shi
Therefore, from the back side of the magnet to the cooling chamber side of the gasket,
The heat transfer to the placement part is reduced.

According to the configuration of claim 2, when the door is closed, the upper
The substantially cylindrical protruding elastic portion makes surface contact with the main body, and
The cooling room is shut off. Therefore, by the heat generating member
Cold air in the cooling chamber hits the heated body abutting part to heat it.
Can be prevented and the temperature rise in the cooling chamber can be reduced.
It

In addition, the protruding elastic portion is
Since there is an air vent hole that allows air to pass,
The air inside the protruding elastic part is deformed through the hole.
Flow in and out, and the elastic force of the air in the protruding elastic part
Do not suppress the reaction force in the opening direction of the door when it is closed.
It can be brought into contact with the main body over a wider area.
The contact between the contact portion and the cooling chamber can be more reliably blocked.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment which is an embodiment of the refrigerator according to the present invention will be described below with reference to FIGS. As shown in FIG. 3, the refrigerator has an opening at the top of the main body 1.
A freezing room (cooling room) 2a provided and a refrigerating room 3a are installed in the lower part, and a freezing room door 2 and a refrigerating room door 3 are attached to each of the rooms 2a and 3a. Each door 2
When the chamber 3 is closed, a substantially tubular packing gasket (gasket) 5 made of rubber or the like having elasticity is provided for sealing the chambers 2a and 3a. Is provided on the peripheral surface facing the. In addition, the compressor 4 for cooling the inside of each of the chambers 2a and 3a
Is installed at the rear lower end of the main body 1.

In addition, in the refrigerator as described above, A in FIG.
As shown in FIG. 1, which is a cross-sectional view taken along arrow A, the packing gasket 5 is inserted into a through hole 7b formed in a peripheral surface of the door sash 7 that is a door exterior body made of a synthetic resin or the like facing the main body 1. The packing gasket mounting portion 5a having a substantially triangular cross section provided on the packing gasket 5 is press-fitted and held and fixed in the packing gasket holding portion 7a formed inside the insertion hole 7b.

The tubular portion of the packing gasket 5 is a contact surface with a flange (main body contact portion) 10a on the peripheral portion of the main body exterior member 10 in the main body 1 when the freezer compartment door 2 is closed. The packing contact surface 5b is formed, and is closely adhered along the back side thereof to form a magnet.
8 are held. Further, the flange 10a is made of a magnetic material so that the packing gasket 5 is in close contact with the flange 10a when the freezer compartment door 2 is closed. The magnetic material is mainly made of iron in consideration of economy. A steel plate made of, for example, is used. Thereby, the flange 10a
The magnetic attraction between the magnet 8 and the magnet 8 causes the packing gasket 5 to come into close contact with the flange 10a. In this way, the freezing compartment 2a has a closed structure by the packing gasket 5 of the freezing compartment door 2 so that the cold air in the freezing compartment 2a does not escape. In addition, packing gasket 5
Then, in order not to prevent the packing contact surface 5b from adhering to the packing skirt portion, the packing skirt portion extending from the near side to the bank portion 11a substantially parallel to the surface of the flange 10a and reaching the bank portion 11a (to the cooling chamber side from the contact portion). Positioned part)
5e is formed.

However, the flange 10a and the packing gasket 5 are cooled to some extent by coming into contact with the cold air in the freezer compartment 2a. Therefore, when the outside air is hot and humid, dew condensation occurs on the flange 10a and the packing gasket 5. So,
In order to prevent dew condensation , it is sufficient to heat both of them 10a.5, so that along the inside of the corner when the peripheral edge of the main body exterior member 10 is bent to form the flange 10a,
A dp condenser (heat generating member) 9 which is a pipe for passing the refrigerant that has been compressed by the compressor 4 and has a high temperature is provided. This dp condenser 9 is usually about 10
The temperature is set to be higher by 0 ° C., and the flange 10a and the packing gasket 5 are warmed by the heat transfer action.

On the other hand, a space surrounded by a door liner 11 which is an inner plate of the freezer compartment door 2 and a door sash 7, and a hood liner 12 which is an inner plate of the freezer compartment 2 and a main body exterior member 10. The space is filled with a heat insulating material 6 such as urethane foam. Further, the door liner 11 has a hood liner 11 so as not to impair the adhesion between the packing gasket 5 and the flange 10a when the freezer compartment door 2 is closed. Although not in contact with 12, the cold air in the freezer compartment 2a is prevented from coming into contact with the flange 10a having a high temperature as much as possible.
The bank portion 1 facing the shape of the hood liner 12
1a is integrally formed. Therefore, when the freezing compartment door 2 is closed, a narrow gap 13 for cold air contact suppression is provided between the bank portion 11a and the hood liner 12 so that the cold air in the freezing compartment is less likely to come into contact with the high temperature portion and raise the temperature. It is formed.
The liners 11 and 12 and the door sash 7 are made of synthetic resin excellent in moldability, heat insulation, insulation and lightweight.

In the refrigerator as described above, the freezer compartment 2a
The main paths of heat invasion into the inside are (1) the freezer 2 through the door sash 7 and the door liner 11.
a path through which heat invades into a, (2) a path through which the flange 10a directly exchanges heat with the cold air in the freezer 2a, and (3) a packing skirt portion 5e from the flange 10a through the back side of the magnet 8 It is conceivable that the heat is transferred to the packing skirt 5e and the heat enters from the packing skirt 5e.

In the above structure, in order to reduce heat invasion from the route (3), the packing gasket 5 is covered with a slight first air layer from the back side of the magnet 8 as in the conventional case. As described above, the first magnet cover (heat insulating member) 5c is formed, and
The second magnet cover (heat insulating member) 5 is provided so as to cover the magnet cover 5c by providing a slight second air layer from the back side.
d is formed. The covers 5c and 5d are made of the same material as the packing gasket 5.

As described above, in the refrigerator, when the packing contact surface 5b approaches the flange 10a when the freezer compartment door 2 is closed, the freezing compartment door 2 is directed toward the main body 1 by the magnetic attraction force of the flange 10a and the magnet 8. Is sucked into. At this time, the packing contact surface 5b of the packing gasket 5 provided along the peripheral surface of the freezer compartment door 2 is brought into close contact with the flange 10a by its magnetic attraction force, so that the airtightness of the freezer compartment 2a is maintained. Be done.

At this time, when the packing contact surface 5b is in close contact with the flange 10a, even if the freezer compartment door 2 is further pressed against the main body 1 with normal force, it is formed on the back surface of the second magnet cover 5d. There is a limit to the bending of the packing gasket 5 due to the reaction force due to the elastic force of the air in the airtight state and the elastic force of the packing gasket 5.
Therefore, the freezer compartment door 2 and the main body 1 can be kept at a predetermined distance, and for example, the bank portion 11a and the hood liner 12 are prevented from coming into contact with each other and being damaged or damaged. It

As described above, in the above-described structure, the air layers are provided on the back side of the magnet 8 to form the double covers 5c and 5c.
It is provided so that d may cover. Therefore, the amount of heat blocked by the double air layer increases as compared with the conventional one in which the air cover is provided on the back side of the magnet to cover the magnet layer. For this reason, the magnet 8 is transferred from the flange 10a to the packing contact surface 5b, which is heated by the heat from the dp condenser 9 as compared with the cold air in the freezer compartment 2a, and the magnet 8 that is in close contact with the back side of the packing contact surface 5b is adhered. Thus, the amount of heat reaching the packing skirt portion 5e from the back side of the magnet 8 is reduced.

Therefore, in the packing gasket 5, first, the temperature rise of the packing skirt portion 5e coming into contact with the cool air from the cold air contact suppressing gap 13 is suppressed, so that the amount of heat entering the freezing chamber 2a is reduced. The power consumption for absorbing the heat is reduced.
As a result, power saving of the refrigerator can be achieved.

Therefore, in the structure of the above-described first embodiment, the packing gasket 5 is passed or the vicinity thereof is passed.
When the total amount of heat intrusion through the above-mentioned three types of routes was measured, it was confirmed that the amount was reduced by about 10% as compared with the conventional configuration. In addition, in the said Example, although the example applied to the freezing room 2a and its freezing room door 2 was given, the said structure can be applied to another refrigerating room, a vegetable room, etc. and its door.

Next, a second embodiment which is another embodiment of the refrigerator according to the present invention will be described with reference to FIGS. In addition, about the function similar to each function of the refrigerator described in the said Example 1, the same reference number was given in the following Example 2, and those description was abbreviate | omitted. This is to reduce the heat invasion from the route (2) of the three types of routes, which are the main routes of heat invading through the packing gasket 5 or its vicinity described in the first embodiment. That is, as shown in FIG. 2 which is a cross-sectional view taken along the line AA of FIG. 3, when the freezer compartment door 2 is closed on the surface of the packing skirt 5e, the packing skirt 5e.
And a packing bellows portion (protruding elastic portion) 14 having a substantially tubular shape so as to close a space between the hood liner 12 facing the
The hood liner 12 is formed along the peripheral edge of the opening. The packing bellows portion 14 is made of the same material as the packing gasket 5.

In addition, interference with the contact between the packing contact surface 5b and the flange 10a due to the elastic force of the packing bellows 14 is avoided, and the freezer compartment door 2 is opened when the freezer compartment door 2 is closed. In order to reduce the reaction force in the direction, an air escape hole 14a that communicates with the back side space of the packing skirt portion 5e is formed.

Therefore, when the freezer compartment door 2 is closed, the contact surface of the packing bellows portion 14 with the hood liner 12 is provided with the air escape hole 14a, so that the elastic force of the air in the packing bellows portion 14 is exerted. The reaction force is not generated, and elastically deformed by the elastic force of the packing bellows portion 14. From this, the packing bellows portion 14 is provided with the air escape hole 14a,
It is possible to contact the hood liner 12 in a wider range. Therefore, the cold air from the cold air contact suppressing gap 13 is further blocked by the packing bellows portion 14, and the flange 10
It is possible to avoid reaching a.

As described above, in the second embodiment, the packing bellows portion 14 is formed so that the flange 10a and the cold air outflow preventing gap 13 are formed when the freezer compartment door 2 is closed.
And will be cut off. By the way, conventionally, due to the heat entering from the flange into the freezing compartment, in order to absorb the heat, more power is consumed in addition to the power consumption for normal cooling. However, in the above-described second embodiment, heat intrusion from the flange 10a, which is higher in temperature than the cold air in the freezer compartment 2a, is reduced, so that power consumption for absorbing the heat is reduced. As a result, power saving of the refrigerator can be achieved. In the second embodiment, the freezer compartment 2a
And the example applied to the freezer compartment door 2 was given,
The above configuration can be applied to other refrigerating rooms, vegetable rooms, and the doors.

[0028]

As described above, in the refrigerator according to the present invention, the magnet is attached to the gasket from the cooling chamber side in the gasket.
A first heat insulating member having an air layer reaching the surface side and covering the first heat insulating member;
Insulate the air layer from the cooling chamber side to the magnet back side with the heat insulating member 1
Double thermal insulation configuration with a second thermal insulation member that has and covers
It has a structure.

Thus, the back side of the magnet and the cooling chamber side are
Since it is double insulated, the gasket is installed from the back side of the magnet.
Heat transfer to the cooling chamber side
It As a result, the temperature rise in the cooling chamber due to the heat from the gasket is suppressed, and the power consumption for cooling is reduced.

The refrigerator according to claim 2 has the following features.
Cooling chamber side from the contact part of the gasket with the main body
The part that is located at
A substantially cylindrical protrusion that makes contact and shuts off the cooling chamber from the main body abutment
The protruding elastic portion is formed, and the protruding elastic portion has a protruding
There is an air vent hole that allows air in the elastic part to pass through.
The flat portion is provided between the protruding elastic portion and the contacting portion with the main body.
It is a configuration that is connected by .

As described above, when the door is closed, the main body contact portion and the cool portion are cooled.
By reliably blocking the inside of the cooling chamber by the protruding elastic portion, the temperature rise in the cooling chamber is suppressed, and the power consumption for cooling is reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part of a refrigerator according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a refrigerator according to another embodiment of the present invention.

FIG. 3 is a schematic side view of a refrigerator according to the one embodiment and another embodiment.

FIG. 4 is a schematic side view of a conventional refrigerator.

FIG. 5 is a cross-sectional view of a main part of the refrigerator.

[Explanation of symbols]

 2 Freezer compartment door (door) 2a Freezer compartment (cooling room) 5 Packing gasket (gasket) 5c 1st magnet cover (heat insulation member) 5d 2nd magnet cover (heat insulation member) 8 magnet (magnet) 9 dp condenser (heat generation member) 10a Flange (main body contact part) 14 Packing bellows part (protruding elastic part) 14a Air escape hole

Claims (2)

(57) [Scope of utility model registration request] 1. A main body having a cooling chamber having an opening,
The door for opening and closing the opening is a gasket installed on the door.
It has a structure that is sealed by a container, and
Heat is transferred to the main body abutting part where the
A heat-generating member is provided to prevent dew condensation on the contact part
In addition, the
A magnet is attached to bring the contact surface into close contact with the main body contact part.
In the refrigerator, the magnet is placed in the gasket from the cooling chamber side to the magnet back side.
And a first heat insulating member having an air layer reaching
The heat insulating member has an air layer from the cooling chamber side to the magnet back side
Also has a double insulation structure that insulates with the second insulation member that covers
Refrigerator and it said that you are me. 2. A main body having a cooling chamber having an opening, and
The door for opening and closing the opening is a gasket installed on the door.
It has a structure that is sealed by a
Heat is transferred to the main body abutting part where the
A heat generating member is provided to prevent dew condensation on the contact area
In the refrigerator, the side of the gasket that is in contact with the main body in the cooling chamber side
The part that is located at
A substantially cylindrical protrusion that makes contact and shuts off the cooling chamber from the main body abutment
The protruding elastic portion is formed, and the protruding elastic portion has a protruding
There is an air vent hole that allows air in the elastic part to pass through.
The flat portion is provided between the protruding elastic portion and the contacting portion with the main body.
Refrigerator characterized by being connected with .