JP6937890B2 - refrigerator - Google Patents

Description

The present invention relates to a refrigerator having a double door that closes the opening of the storage chamber.

The refrigerator has a structure having a double door that closes the opening of the storage chamber formed in the refrigerator body. The double door type is composed of a refrigerating room left door and a refrigerating room right door, and a partition member for closing a gap provided between the refrigerating room left door and the refrigerating room right door. The partition member has a heat transfer member and a heating portion such as a heater that heats the heat transfer member in order to prevent dew formation on the surface due to the temperature difference between the outside air and the inside of the refrigerator compartment. In a refrigerator, the surface temperature is adjusted by changing the heating by the heating unit at an hourly rate according to the room temperature and humidity of the place where the refrigerator is installed, thereby improving energy saving.

For example, in the refrigerator disclosed in Patent Document 1, the heat transfer member is made of synthetic resin, and the heating portion is linearly arranged along the longitudinal direction of the heat transfer member. The heating portion has a configuration in which a plurality of portions having different calorific values are formed by one heater, and the calorific value of the central portion is larger than that of both end portions in the longitudinal direction of the partition member.

Further, in the refrigerator disclosed in Patent Document 2, when the temperature distribution in the refrigerating chamber is divided into an upper region, an intermediate region, and a lower region in the height direction, the upper region becomes a relatively high temperature state, and the intermediate region region. Is a configuration in which the calorific value is adjusted based on a relatively low temperature state and a relatively medium temperature state in the lower region. Specifically, in this refrigerator, the heater in the middle region is formed in a dense zigzag shape to make the unit calorific value relatively large, and the heater in the lower region is formed in a slightly rough zigzag shape. The unit calorific value is relatively medium, and the unit calorific value is relatively small by forming the heater in the upper region in a straight shape.

Japanese Patent No. 5919582 Japanese Unexamined Patent Publication No. 2015-148366

By the way, the partition member is installed with a gap between the top surface and the bottom surface of the refrigerating chamber so that the partition member can rotate smoothly. Therefore, the gaskets provided along the peripheral edges of the left door of the refrigerator compartment and the right door of the refrigerator compartment protrude from the side surface portion of the gasket toward the gap portion, and the gap portions provided above and below the partition member are provided in the refrigerator. A fin portion that closes from the outer surface side is provided. The left and right fins overlap when the left door of the refrigerator compartment and the right door of the refrigerator compartment are closed to close the gap.

Since this fin portion is directly exposed to the cold air of the refrigerating chamber flowing from the gap portion, the temperature tends to be lower than that of the surface of the partition member. Further, a portion adjacent to the fin portion of the gasket 6 is provided with a magnetic material holding portion for holding a magnetic material such as a magnet that brings the partition member into close contact with the magnetic force. Since the magnetic material has a larger heat capacity than the gasket, the temperature does not easily rise even when the cooling in the refrigerator is stopped, and in particular, the temperature of the portion close to the refrigerator compartment does not easily rise. Therefore, at the root portion of the fin portion adjacent to the magnetic material, the temperature does not easily rise due to the influence of the magnetic material, and dew is likely to occur. That is, in the refrigerators disclosed in Patent Documents 1 and 2, it is necessary to perform extra heating in the heating portion so as not to generate dew on the root portion of the fin portion, which may result in inferior energy saving.

The present invention has been made to solve the above problems, and it is possible to raise the temperature of the root portion of the fin portion without performing extra heating in the heating portion, and suppress the occurrence of dew condensation. It is intended to provide a refrigerator that can be used.

The refrigerator according to the present invention has a refrigerator main body having an opening at the front surface and having at least one storage chamber, a double door left and right door portion that opens and closes the opening of the storage chamber so as to be openable and closable, and the left and right door portions. A partition member for closing the first gap provided at the boundary from the storage chamber side and a gasket provided along the peripheral edge of the left and right door portions are provided, and the partition member is a concave frame member. It has a front plate that closes the opening surface of the frame member and a heating portion that heats the front plate, and is arranged with a second gap between the top surface and the bottom surface of the storage chamber. The gasket is provided on the magnetic material holding portion in which the side surface portion is adjacent to the first gap portion and the magnetic material for adhering the front plate is inserted, and the gasket is provided on the side surface portion of the magnetic material holding portion. A hollow structure portion in which a hollow portion is formed along the height direction of the storage chamber, and a fin that is in close contact with the front plate and the storage chamber to close the second gap portion when the left and right door portions are closed. The hollow structure portion is provided from one end edge of the side surface portion of the magnetic material holding portion in the height direction toward the first gap portion, and the fin portion is the hollow portion. It protrudes from the structural portion toward the first gap portion.

According to the present invention, since the hollow structure portion provided on the side surface portion of the magnetic material holding portion functions as a heat insulating layer, the temperature of the root portion of the fin portion can be adjusted without performing extra heating in the heating portion of the partition member. It can be increased and the occurrence of dew can be suppressed.

It is a front view of the refrigerator which concerns on embodiment of this invention. It is a rear view which is the left door of the refrigerating room of the refrigerator which concerns on embodiment of this invention, and shows the state which removed the gasket. FIG. 1 is a cross-sectional view showing only the front side portion of the refrigerator, which is a view taken along the line III-III in part A shown in FIG. FIG. 3 is a cross-sectional view taken along the line IV-IV shown in FIG. FIG. 3 is a cross-sectional view taken along the line VV shown in FIG. FIG. 1 is a perspective view showing a state in which the left door of the refrigerating room is closed and the right door of the refrigerating room is opened in the part A shown in FIG. It is explanatory drawing which shows typically the structure of the hollow structure part of the refrigerator which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each figure, the same or corresponding parts are designated by the same reference numerals, and the description thereof will be omitted or simplified as appropriate. In addition, the shape, size, arrangement, etc. of the configurations shown in each figure can be appropriately changed within the scope of the present invention.

Embodiment.
First, the overall structure of the refrigerator 100 of the present embodiment will be described with reference to FIG. FIG. 1 is a front view of a refrigerator according to an embodiment of the present invention. As shown in FIG. 1, the refrigerator 100 is provided in front of a refrigerator main body 1 having an opening on the front surface and having a plurality of storage chambers partitioned by a plurality of partition plates, and a refrigerator main body 1 provided in front of the refrigerator main body 1. It is composed of a door that can be opened and closed to open and close the opening of each storage room. The refrigerator body 1 is formed with a space sealed by a resin inner box inside the refrigerator 100 and a steel plate outer box outside the refrigerator 100. A vacuum heat insulating material is installed inside the inner box and the outer box, and is filled with a foam heat insulating material such as urethane foam. Although not shown, the compressor, cooling fan, and the like that make up the refrigeration cycle are housed on the back side of the refrigerator body 1.

As an example, the multi-stage storage room is composed of a refrigerating room 10, an ice making room 11, a small freezing room 12, a vegetable room 13, and a freezing room 14 in this order from the top. Each storage room is distinguished by a settable temperature zone (set temperature range). For example, the refrigerating room 10 has a temperature of about 3 ° C., the ice making room 11, the small freezing room 12 and the freezing room 14 have a temperature of about -12 ° C. 18 ° C. and the vegetable compartment 13 can be set to about 5 ° C. The configuration of the multi-stage storage chamber is not limited to the configuration shown in the figure. Further, the set temperature of each storage room is not limited to this, and the setting can be appropriately changed according to the installation location and the contents.

The refrigerating room 10 is frequently used and is arranged at the uppermost stage where the user can take it in and out without bending down. The front opening of the refrigerator compartment 10 is provided with double doors 10a, which are double doors and are composed of the left door 2 of the refrigerator compartment and the right door 3 of the refrigerator compartment. The refrigerator compartment left door 2 and the refrigerator compartment right door 3 are rotatably supported by hinges that support the door rotation shafts, respectively. The boundary between the refrigerating compartment left door 2 and refrigerating compartment right door 3, in order to enable the opening and closing of the refrigerating compartment left door 2 and refrigerating compartment right door 3, the gap portion S ₁ is provided. Although not shown, on the upper side of the left door 2 of the refrigerator compartment, a temperature sensor that measures the temperature of the installation location and the humidity of the installation location are used to realize optimum operation according to the installation environment. It is equipped with a humidity sensor that measures the temperature. For example, in the refrigerator 100, since the amount of heat leakage is fixed, the refrigerating capacity is adjusted according to the ambient temperature by varying the speed of the compressor or the speed of the cooling fan by inverter control. doing. The temperature sensor and the humidity sensor are not limited to the upper side of the left door 2 of the refrigerator compartment, and may be provided at other places.

A drawer-type ice making chamber door 11a is provided at the front opening of the ice making chamber 11. A drawer-type small freezing room door 12a is provided at the front opening of the small freezing room 12. A drawer-type vegetable compartment door 13a is provided at the front opening of the vegetable compartment 13. A drawer-type freezing chamber door 14a is provided at the front opening of the freezing chamber 14. Although not shown, door gaskets for preventing the outflow of indoor cold air are attached to the ice making room door 11a, the small freezing room door 12a, the vegetable room door 13a, and the freezing room door 14a along the inner peripheral edge. Has been done.

Next, the configurations of the refrigerating room left door 2 and the refrigerating room right door 3 in the present embodiment will be described in detail with reference to FIGS. 2 to 7. FIG. 2 is a rear view showing the left door of the refrigerator compartment according to the embodiment of the present invention, in which the gasket is removed. FIG. 3 is a cross-sectional view showing only the front side portion of the refrigerator, which is a view taken along the line III-III in the part A shown in FIG. FIG. 4 is a cross-sectional view taken along the line IV-IV shown in FIG. FIG. 5 is a cross-sectional view taken along the line VV shown in FIG. FIG. 6 is a perspective view showing a state in which the left door of the refrigerator compartment is closed and the right door of the refrigerator compartment is opened, which is the part A shown in FIG. FIG. 7 is an explanatory view schematically showing the configuration of the hollow structure portion of the refrigerator according to the embodiment of the present invention.

As shown in FIG. 2, the refrigerating room left door 2 is filled inside surrounded by a door outer frame 4 made of sheet metal, an inner plate 5 made of synthetic resin, and a door outer frame 4 and an inner plate 5. It has a heat insulating material such as urethane foam, and a gasket 6 provided along the peripheral edge of the inner plate 5. Since the refrigerating room right door 3 has the same configuration as the refrigerating room left door 2, the same reference numerals are given and the description thereof will be omitted.

In addition, the refrigerating compartment left door 2, as shown in FIGS. 3 to 6, the gap portion S ₁ provided at the boundary of the refrigerating compartment left door 2 and refrigerating compartment right door 3 closes the refrigerating chamber 10, A partition member 7 that blocks the flow of air between the inside of the refrigerating chamber 10 and the outside air is attached. The partition member 7 is hinged to the left door 2 of the refrigerator compartment and rotates in conjunction with the opening / closing operation of the left door 2 of the refrigerator compartment. Specifically, when the refrigerating chamber left door 2 is open, the partition member 7 rotates toward the inner plate 5 side of the refrigerating chamber left door 2. On the other hand, the partition member 7, as shown in FIGS. 4 and 5, when a state where the refrigerating compartment left door 2 closed, toward the gap portion S ₁ of the refrigerating compartment left door 2 and refrigerating compartment right door 3 rotates to close the the clearance portion S _1.

As shown in FIGS. 3 and 4, the partition member 7 includes a concave frame member 70, a front plate 71 that closes the opening surface of the frame member 70, and a cover member 72 for attaching the front plate 71 to the frame member 70. And a heating portion 73 for heating the front plate 71, and a heat insulating material 74 filled inside the frame member 70.

The frame member 70 is made of synthetic resin and is formed vertically along the height direction of the refrigerating chamber 10 as shown in FIGS. 3 and 6. The front plate 71 is made of, for example, a metal plate. The front plate 71 is formed vertically so as to close the opening surface of the frame member 70, and is attached to the frame member 70 by a cover member 72 made of synthetic resin. Front plate 71, the center in the width direction is the refrigerating compartment left door 2 and refrigerating compartment substantially coincides with the center of the gap portion S ₁ provided at the boundary between the right door 3. When the refrigerating chamber left door 2 and the refrigerating chamber right door 3 are closed, the front plate 71 is brought into close contact with the gasket 6 by the magnetic force of the magnetic body 61a incorporated in the gasket 6.

The heating unit 73 is arranged inside the frame member 70 to heat the front plate 71. When the inside of the refrigerator 100 is cooled, dew may occur on the front plate 71 of the partition member 7 due to the temperature difference from the outside air. In the refrigerator 100, in order to prevent the occurrence of dew, the front plate 71 is heated by the heating unit 73 to keep the temperature of the surface of the front plate 71 at or above the dew point temperature.

As an example, the heating unit 73 has a structure in which a resistance wire such as a nichrome wire is placed over the entire aluminum foil extending in the height direction of the refrigerating chamber 10. The heat of the front plate 71 heated by the heating unit 73 is transferred to the gasket 6. The heating unit 73 generates heat by controlling the energization time to be changed, for example, for 5 seconds out of 10 seconds, depending on the ambient temperature and the ambient humidity detected by the temperature sensor and the humidity sensor. The heat insulating material 74 is made of, for example, Styrofoam, and is provided so that the heat of the heating unit 73 is not transferred to the refrigerating chamber 10.

Further, as shown in FIG. 3, the partition member 7 is provided with a guide member 75 having a guide groove 75a joined to the upper end portion and the lower end portion of the frame member 70 by a joining member 76 such as a screw. On the other hand, as shown in FIGS. 3 and 5, guide parts 20 having a guide protrusion 21 that can be fitted with the guide groove 75a are provided on the ceiling surface and the bottom surface of the refrigerating chamber 10. When the refrigerating chamber left door 2 is opened and closed, the partition member 7 rotates as the guide groove 75a moves along the guide protrusion 21. The partition member 7 is provided with _{a gap S2 of, for example, about 2} to 5 mm between the upper and lower guide parts 20 so that the partition member 7 can rotate smoothly.

Next, the structure of the gasket 6 attached to the left door 2 of the refrigerator compartment will be described. Since the gasket attached to the right door 3 of the refrigerator compartment has the same configuration as the gasket 6 of the left door 2 of the refrigerator compartment, the same reference numerals are given and the description thereof will be omitted as appropriate.

The gasket 6 is made of vinyl chloride, for example, and suppresses cold air from leaking from the refrigerating chamber 10 to the outside of the left and right door portions 10a. As shown in FIGS. 4 and 5, the gasket 6 is fitted with a fitting portion 60 fitted into the groove portion 50 formed in the inner plate 5 and a magnetic body holding portion 61 having a hollow structure into which the magnetic body 61a is inserted. It is composed of a flexible portion 62 that flexibly connects the joint portion 60 and the magnetic material holding portion 61. Magnetic holding unit 61 is a horizontally long rectangular shape in the width direction of the refrigerator 100, provided to be adjacent the side surface portion in the gap portion S ₁ which is provided between the refrigerating compartment left door 2 and refrigerating compartment right door 3 Has been done. The magnetic body 61a is, for example, a magnet and has substantially the same shape as the magnetic body holding portion 61. The thickness of the magnetic body 61a in the depth direction of the refrigerator 100 is about 4 mm. As shown in FIG. 4, a packing 63 is provided between the gasket 6 and the inner plate 5 of the left door 2 of the refrigerating chamber to prevent the cold air in the refrigerating chamber 10 from flowing into the gasket 6. There is.

Further, as shown in FIGS. 4 to 7, the gasket 6 is provided on the side surface portion 82 of the magnetic material holding portion 61, and the hollow structure portion 8a is formed along the height direction of the refrigerating chamber 10. 8 is provided. Hollow structural part 8, as shown in FIGS. 6 and 7, the stretching wall 80 is extended toward the gap portion S ₁ from the inner edge in the height direction of the side surface portion 82 of the magnetic holding unit 61, the It is composed of a connecting wall 81 that connects the outer edge of the side surface portion 82 in the height direction and the extending wall 80. That is, the hollow portion 8a of the hollow structure portion 8 is formed by a range surrounded by the side surface portion 82 of the magnetic material holding portion 61, the extending wall 80, and the connecting wall 81. The stretched wall 80 and the connecting wall 81 may be integrally molded with the magnetic material holding portion 61, or may be molded as separate bodies and then welded to the side surface portion 82 of the magnetic material holding portion 61. The hollow portion 8a of the hollow structure portion 8 is formed in a triangular shape as an example, but is not limited thereto. The hollow structure portion 8 may be provided by appropriately changing the shape of the connecting wall 81 so as to form a hollow portion having a quadrangular or circular shape, for example.

As shown in FIG. 7, the hollow structure portion 8 is provided with a closing portion 83 that closes both end faces of the refrigerating chamber 10 in the height direction. When both end faces of the refrigerating chamber 10 in the height direction of the hollow structure portion 8 are open, an updraft is generated inside the hollow due to heat generated by the heating portion 73, and the internal air is replaced. That is, the hollow structure portion 8 can prevent the updraft generated by the heat generated by the heating portion 73 by closing both end surfaces of the refrigerating chamber 10 in the height direction with the closing portions 83. Therefore, the hollow structure portion 8 can prevent the replacement of the internal air due to the updraft, and can effectively raise the surface temperature. However, the hollow structure portion 8 is not limited to a configuration that closes both end faces of the refrigerating chamber 10 in the height direction. For example, only one end face may be closed, or both end faces may be open faces.

Further, as shown in FIGS. 2, 5, 6 and 7, the gasket 6 of the left door 2 of the refrigerating chamber protrudes from the extension wall 80 constituting the hollow structure portion 8 toward the right door 3 of the refrigerating chamber. fin portion 9a for closing the gap portion S ₂ respectively provided between the partition member 7 and the upper and lower guide parts 20 are provided above and below. On the other hand, the gasket 6 of the right door 3 of the refrigerating chamber also protrudes from the extension wall 80 constituting the hollow structure portion 8 toward the left door 2 of the refrigerating chamber, and is provided between the partition member 7 and the upper and lower guide parts 20, respectively. fin portion 9b for closing the gap portion S ₂ are provided above and below. Left and right fin portions 9a, 9b are overlapped when closed and the refrigerating compartment left door 2 and the refrigerating compartment right door 3, in the configuration for closing the gap portion S ₂ provided between the partition member 7 and the guide parts 20 be. The fin portion that closes the gap between the partition member 7 and the lower guide part 20 is not shown.

Fin portion 9a, 9b is because it is directly exposed to cool air of the refrigerating compartment 10 to flow through the gap portion S _2, the temperature tends to lower than the surface of the partition member 7. Further, since the magnetic body 61a has a larger heat capacity than the gasket 6, the temperature does not easily rise even when the cooling in the refrigerator is stopped, and the temperature of the portion close to the refrigerating chamber 10 does not rise easily. Therefore, at the roots of the fin portions 9a and 9b adjacent to the magnetic body 61a, the temperature does not easily rise due to the influence of the magnetic body 61a, and dew is likely to occur. In the conventional refrigerator, the temperature of the heating portion 73 is raised so that dew does not occur at the root portions of the fin portions 9a and 9b, but there is a problem that the energy saving performance is inferior.

Therefore, as described above, the gasket 6 of the refrigerator 100 according to this embodiment are provided to be adjacent the side surface portion 82 in the gap portion S _1, magnetic 61a to closely contact the front plate 71 has been inserted magnetic and the holding portion 61, provided on a side face portion 82 of the magnetic retaining portion 61, a hollow structure portion 8 in which the hollow portion 8a is formed along the height direction of the refrigerating compartment 10, the gap portion S ₁ from the hollow structure portion 8 It has fin portions 9a and 9b protruding toward. Therefore, in this refrigerator 100, since the hollow structure portion 8 provided on the side surface portion 82 of the magnetic body holding portion 61 functions as a heat insulating layer, the fin portion does not need to be excessively heated by the heating portion 73 of the partition member 7. The temperature of the root portion of 9a and 9b can be raised, and the occurrence of dew can be suppressed.

Further, in the refrigerator 100, the hollow structure portion 8 also functions as a reinforcing portion of the root portions of the fin portions 9a and 9b. Therefore, in the refrigerator 100, when the left and right door portions 10a are opened and closed, the lower end portions of the fin portions 9a (9b) shown as the B portions in FIG. It is possible to suppress the situation of rubbing and damaging.

Further, the hollow structure portion 8 of the refrigerator 100 according to this embodiment, the stretching wall 80 is extended toward the gap portion S ₁ from one edge in the height direction of the side surface portion 82 of the magnetic holding unit 61, the It has a connecting wall 81 that connects the other end edge of the side surface portion 82 in the height direction and the extension wall 80. The hollow portion 8a of the hollow structure portion 8 is formed by a range surrounded by the side surface portion 82 of the magnetic material holding portion 61, the extending wall 80, and the connecting wall 81. That is, since the refrigerator 100 according to the present embodiment has a hollow structure portion 8 having a simple structure, it does not require much labor for processing and can contribute to the improvement of productivity.

Further, the hollow structure portion 8 of the refrigerator 100 according to the present embodiment is provided with a closing portion 83 that closes both end surfaces of the refrigerating chamber 10 in the height direction. Therefore, the refrigerator 100 can prevent the updraft generated by the heat generated by the heating unit 73 and prevent the replacement of the internal air due to the updraft, so that the surface temperature of the hollow structure portion 8 can be effectively raised. Can be done.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the configuration of the above-described embodiments. For example, the left and right door portions 10a of the double door type are not limited to the configuration provided in the refrigerating chamber 10, and may be provided in other storage chambers. Further, the partition member 7 is not limited to the configuration attached to the left door 2 of the refrigerating room, and may be attached to the right door 3 of the refrigerating room. In short, the present invention includes a range of design changes and application variations normally performed by those skilled in the art, as long as the technical idea is not deviated.

1 Refrigerator body, 2 Refrigerator room left door, 3 Refrigerator room right door, 4 Door outer frame, 5 Inner plate, 6 Gasket, 7 Partition member, 8 Hollow structure part, 8a Hollow part, 9a, 9b fin part, 10 Refrigerator room 10a Left and right doors, 11 ice-making room, 11a ice-making room door, 12 small freezer room, 12a small freezer room door, 13 vegetable room, 13a vegetable room door, 14 freezer room, 14a freezer room door, 20 guide parts, 21 guides Projection, 50 groove, 60 fitting, 61 magnetic material holding part, 61a magnetic material, 62 flexible part, 63 packing, 70 frame member, 71 front plate, 72 cover member, 73 heating part, 74 heat insulating material, 75 Guide member, 75a guide groove, 76 joint member, 80 extension wall, 81 connection wall, 82 side surface part, 83 blockage part, 100 refrigerator, S ₁ , S ₂ gap part.

Claims (4)

A refrigerator body with an opening on the front and at least one storage chamber,
The left and right doors with double doors that open and close the opening of the storage room can be opened and closed.
A partition member that closes the first gap provided at the boundary between the left and right doors from the storage chamber side, and
A gasket provided along the peripheral edge of the left and right door portions is provided.
The partition member has a concave frame member, a front plate that closes the opening surface of the frame member, and a heating portion that heats the front plate, and is between the top surface and the bottom surface of the storage chamber. Arranged with a second gap,
The gasket is
A magnetic material holding portion provided with a side surface portion adjacent to the first gap portion and into which a magnetic material for adhering the front plate is inserted.
A hollow structure portion provided on the side surface portion of the magnetic material holding portion and a hollow portion formed along the height direction of the storage chamber, and a hollow structure portion.
It has a fin portion that comes into close contact with the front plate and the storage chamber and closes the second gap portion when the left and right door portions are closed.
The hollow structure portion is provided from one end edge of the magnetic material holding portion in the height direction of the side surface portion toward the first gap portion.
A refrigerator in which the fin portion protrudes from the hollow structure portion toward the first gap portion. The hollow structure is
And stretched wall is stretched toward the first gap portion from one end edge in the height direction of the side surface portion of the magnetic retaining portion and the other end edge and the stretching wall in the height direction of the front SL side portions It has a connecting wall for connecting, and when the left and right doors are closed, it is in close contact with at least one of the front plate and the storage chamber.
The refrigerator according to claim 1, wherein the hollow portion is formed by a range surrounded by the side surface portion, the extending wall, and the connecting wall. The refrigerator according to claim 1 or 2, wherein the hollow structure portion is provided with closing portions that close both end surfaces of the storage chamber in the height direction. The refrigerator according to any one of claims 1 to 3, wherein the hollow portion of the hollow structure portion is formed in a triangular shape.

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