WO2018003549A1

WO2018003549A1 - Refrigerator

Info

Publication number: WO2018003549A1
Application number: PCT/JP2017/022307
Authority: WO
Inventors: 米田　貴史; 山口　太郎; 道雄福田; 理上野
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2016-06-27
Filing date: 2017-06-16
Publication date: 2018-01-04
Also published as: JP2018004089A

Abstract

A refrigerator, provided with a door switch (37) for detecting the opening/closing of a double door for opening and closing a refrigeration compartment. The door switch (37) comprises a lead switch having a magnet (38) and a Hall IC (39). The magnet (38) and the Hall IC (39) are disposed so as to face each other on mutually facing door end surfaces of a first door (71) and a second door (72) of the double door.

Description

refrigerator

The present disclosure relates to a refrigerator, and more particularly, to a door open / close detection configuration of the refrigerator.

Generally, a refrigerator includes a refrigerator compartment, a freezer compartment, a vegetable compartment, etc. provided in the refrigerator body. In general, the refrigerating room is provided at the uppermost part of the refrigerator main body, and is configured so that many foods can be cooled and stored. In such a refrigerator, the door of the refrigerator compartment is configured with a double door so that food can be easily taken in and out. A door switch that detects opening and closing of the door is provided in the double doors (see, for example, Patent Document 1).

FIG. 18 shows a conventional refrigerator described in Patent Document 1. As shown in FIG. 18, a conventional refrigerator 100 has a refrigeration room 101 in the upper part, an ice making room (not shown) and a switching room 102 in the lower part, and a freezing room 103 and a vegetable room 104 in the lower part. ing. A double door 105 is provided at the front opening of the refrigerator compartment 101. The refrigerator 100 is configured such that opening / closing of the door 105 is detected by a door switch 107 provided in the refrigerator main body 106.

In the conventional refrigerator 100 as described in Patent Document 1, when the door 105 remains open, the door switch 107 detects the opening and closing of the door 105, and the door 105 is open. It is possible to inform the user that the state has been left, or to control the turning on and off of the ultraviolet light irradiation unit that makes food preservation good as described in Patent Document 1. Thereby, the usability and performance of the refrigerator can be improved.

However, the conventional refrigerator 100 is configured such that the door switch 107 is provided in the refrigerator main body 106 and the door 105 detects opening / closing of the door when the door 105 contacts or separates from the opening end surface of the refrigerator main body 106. For this reason, when a door switch is provided on a double door, a door switch must be provided corresponding to each of the left and right doors of the double door. Yes.

Further, since the door switch 107 has a protruding switch projection that protrudes freely from the opening end face of the refrigerator main body 106 and is noticeable to the user when the door 105 is opened, there is a problem that the aesthetic appearance of the refrigerator is impaired. is there.

This aesthetic problem can be solved at a considerable level by using the door switch 107 as a reed switch, but the lid that covers the Hall IC that is a component of the reed switch is still present on the open end face of the refrigerator main body 106. As this becomes conspicuous, the problem of aesthetics remains.

Moreover, if a reed switch is used for the door switch 107, the cost becomes higher than that of a mechanical switch. In addition, the detection of door opening / closing is likely to occur because the magnet and the Hall IC are close to each other or away from each other, so that the detection accuracy is likely to be lowered due to variations in magnetic force. For example, even if the door 107 is slightly opened, it may not be detected. For this reason, it is necessary to use a magnet having a strong magnetic force, and there is a problem that the cost is further increased.

Japanese Patent Laying-Open No. 2015-203549

The present disclosure has been made in view of such problems, and provides a refrigerator capable of detecting door opening / closing with high accuracy without deteriorating aesthetics or incurring cost increase.

Specifically, a refrigerator according to an example of an embodiment of the present disclosure includes a refrigerator main body, a refrigerator compartment provided in the refrigerator main body, a double door that opens and closes the refrigerator compartment, and a door that detects opening and closing of the double door. And a switch. The double doors have a first door and a second door, and the first door and the second door have door end surfaces that face each other. The door switch is composed of a reed switch having a magnet and a Hall IC. The magnet is provided on the door end face of the first door or the door end face of the second door, and the Hall IC is provided on the door end face where the magnet is not provided, of the door end face of the first door and the door end face of the second door. It has been. Further, the magnet and the Hall IC are arranged to face each other.

With such a configuration, the door switch does not appear on the outer surface of the refrigerator body, so that the aesthetics of the refrigerator can be improved. Further, when the door is opened and closed between the refrigerator body and the door, two door switches are required. According to such a configuration, the door switch is connected to the first door and the first door. Since the door opening / closing is detected between the two doors, only one door switch is required, and the cost can be reduced. In addition, since the magnet and the Hall IC are configured to approach or separate from each other when the door is opened and closed, the door opening and closing can be detected sharply, and the detection accuracy of the door opening and closing can be improved.

FIG. 1 is a perspective view of a refrigerator according to an example embodiment of the present disclosure. FIG. 2 is a side view of the inside of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 3 is a perspective view of a refrigerator according to the example of the embodiment of the present disclosure in a state where the double doors are opened. FIG. 4 is a perspective view showing one of the double doors of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 5 is a plan view showing a state in which the double doors of the refrigerator according to the example of the embodiment of the present disclosure are opened. FIG. 6 is a diagram for explaining a main part of the double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 7 is an enlarged cross-sectional view illustrating a door opening / closing door switch portion of the double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 8 is a diagram for explaining a door opening / closing door switch portion of the double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 9 is an exploded perspective view illustrating a door opening / closing door switch portion of the double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 10A is an external perspective view of a rotary partition provided in a double door of a refrigerator according to an example of an embodiment of the present disclosure. FIG. 10B is a diagram viewed from the back of the rotating partition of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 11 is an exploded perspective view showing a rotary partition provided in a double door of the refrigerator according to the example of the embodiment of the present disclosure. 12 is a cross-sectional view taken along line 12-12 of FIG. 10B showing a rotary partition provided on a double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 13 is a cross-sectional view taken along line 13-13 of FIG. 10B showing a rotary partition provided on a double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. 10B showing a rotary partition provided on a double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 15 is a cross-sectional view taken along line 15-15 of FIG. 10B showing a rotary partition provided in a double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 16 is a cross-sectional view taken along line 16-16 of FIG. 10B showing a rotary partition provided on a double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 17A is a diagram for describing a structure of a rotating partition portion provided in a double door of a refrigerator according to an example of an embodiment of the present disclosure. FIG. 17B is another diagram for explaining the structure of the rotating partition portion provided in the double doors of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 18 is a cross-sectional view showing a main part of a conventional double door of a refrigerator.

The refrigerator according to the example of the embodiment of the present disclosure includes a refrigerator body, a refrigerator room provided in the refrigerator body, a double door that opens and closes the refrigerator room, and a door switch that detects opening and closing of the double door. The double doors have a first door and a second door, and the first door and the second door have door end surfaces that face each other. The door switch is composed of a reed switch having a magnet and a Hall IC. The magnet is provided on the door end face of the first door or the door end face of the second door, and the Hall IC is provided on the door end face where the magnet is not provided, of the door end face of the first door and the door end face of the second door. It has been. Further, the magnet and the Hall IC are arranged to face each other.

With such a configuration, the door switch does not appear on the outer surface of the refrigerator body, so that the aesthetics of the refrigerator can be improved. In addition, with such a configuration, the door switch detects the opening / closing of the door between the first door and the second door, so two configurations that are necessary in the configuration of detecting the door opening / closing between the refrigerator body and the door are required. There is no need for a switch, and only one door switch is required, and the cost can be reduced. In addition, since the magnet and the Hall IC are configured to approach or separate from each other when the door is opened and closed, the door opening and closing can be detected sharply, and the detection accuracy of the door opening and closing can be improved.

In the refrigerator according to the example of the embodiment of the present disclosure, the door switch may be provided on the upper part of the double door.

Such a configuration can shorten the wiring routed from the upper end of the refrigerator main body to the hall IC of the door switch via the door hinge and the like, thereby reducing the cost. In addition, even if the user touches the door end face with a wet hand and the water flows down the door end face, there is no risk of water entering the Hall IC portion, and a highly reliable refrigerator can be obtained. it can.

Further, in the refrigerator according to the example of the embodiment of the present disclosure, the door switch may be provided at the lower part of the double door. In this case, the display part may be provided in any one of the 1st door and the 2nd door of a double doors provided with Hall IC of the door switch.

With such a configuration, the wiring connecting the Hall IC of the door switch and the display unit can be shortened, and the cost can be reduced by shortening the wiring, and the workability can be improved.

Further, in the refrigerator according to the example of the embodiment of the present disclosure, either one of the first door and the second door of the double door is provided with a rotating partition that closes a gap between the door end surfaces. Good. In this case, the rotating partition may have a heater for AC power supply. Moreover, the magnet of a door switch is provided in any one of the 1st door and the 2nd door in which the rotation partition was provided, and the rotation partition of the 1st door and the 2nd door of a double doors. Hall IC may be provided in the door (first door or second door) on which the body is not provided.

With such a configuration, the heater 100V wiring and the Hall IC DC wiring can be provided separately on separate doors. As a result, wiring work can be simplified, and mistakes in 100V wiring and DC wiring, which tend to occur during assembly work, can be prevented, and both reliability and productivity can be improved at the same time.

Moreover, the refrigerator by the example of embodiment of this indication is the door (1st door or 2nd door) in which the rotation partition is not provided among the 1st door of a double door and the 2nd door, The display unit may be provided, and the door IC (first door or second door) on which the display unit is provided may be provided with a hall IC of a door switch.

With such a configuration, the DC wiring to the Hall IC and the DC wiring to the display unit can be wired together, and the wiring workability can be further improved.

Further, in the refrigerator according to the example of the embodiment of the present disclosure, a metal reinforcing plate may be provided on each of the door end surfaces of the first door and the second door of the double door. In this case, an opening is provided in the reinforcing plate of the first door or the second door, in which at least the magnet of the door switch is arranged, and the magnet may be arranged in the opening.

With such a configuration, it is possible to improve the door opening / closing detection accuracy by improving the strength of the door end face and preventing a decrease in detection accuracy due to a decrease in magnetic force.

Further, in the refrigerator according to the example of the embodiment of the present disclosure, the double door is configured by filling the inside with foam heat insulating material, and the magnet and the Hall IC of the door switch may be covered with a switch protection cover, respectively. Good.

Such a configuration can greatly improve the heat insulating property of the double doors, and can prevent the foam heat insulating material that improves the heat insulating property from entering the door switch portion. Therefore, with such a configuration, high detection accuracy can be maintained while improving the heat insulation of the refrigerator.

Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the drawings. Note that the present disclosure is not limited to the following embodiments.

(Embodiment)
1 to 5 are diagrams for explaining the overall configuration of the refrigerator, FIGS. 6 to 9 are diagrams for explaining the door opening / closing detection configuration of the double doors of the refrigerator compartment, and FIGS. 10A to 17B are double doors. It is a figure explaining the structure of the rotation partition provided in the door.

(1. Overall configuration of refrigerator)
First, the overall configuration of the refrigerator 80 according to the example of the embodiment of the present disclosure will be described with reference to FIGS. FIG. 1 is a perspective view of a refrigerator according to an example embodiment of the present disclosure. FIG. 2 is a side view of the inside of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 3 is a perspective view of a refrigerator according to the example of the embodiment of the present disclosure in a state where the double doors are opened. FIG. 4 is a perspective view showing one of the double doors of the refrigerator according to the example of the embodiment of the present disclosure.

The refrigerator 80 according to the example of the embodiment of the present disclosure includes the refrigerator main body 1 having an opening at the front. As shown in FIG. 2, the refrigerator main body 1 includes a metal outer box 2, a hard resin inner box 3, and a foam insulation 4 filled between the outer box 2 and the inner box 3. Has been. The refrigerator body 1 is partitioned into a plurality of storage chambers by

partition plates

5 and 6. The plurality of storage rooms formed in the refrigerator main body 1 are configured to be openable and closable by a double door 7 and

drawer type doors

8, 9, 10, and 11. The double doors 7 and the drawer-

type doors

8, 9, 10, and 11 are configured to have a heat insulating property by a heat insulating structure similar to that of the refrigerator body 1.

The plurality of storage chambers formed in the refrigerator main body 1 includes an uppermost refrigeration chamber 84, a switching chamber 85 provided under the refrigeration chamber 84 and a temperature-switchable switching chamber 85, and an ice making chamber 86 provided beside the chamber. The freezing room 18 provided below the switching room 85 and the ice making room 86 and the lowermost vegetable room 17 are configured.

In addition, a cooling chamber 19 is provided on the rear surface of the freezer compartment 18 of the refrigerator body 1. The cooling chamber 19 includes a cooler 20 that generates cool air and a cooling fan 21 that supplies the cool air to each of a plurality of storage chambers. And are installed. Below the cooler 20, a defrosting section 22 (hereinafter referred to as a glass tube heater 22) constituted by a glass tube heater or the like is provided.

In the cooler 20, a compressor 23, a condenser (not shown), a heat radiating pipe (not shown), and a capillary tube (not shown) are annularly connected to form a refrigeration cycle. The cooling is performed by the circulation of the refrigerant compressed by the compressor 23.

The cooling fan 21 is provided above the cooler 20 and is refrigerated via a refrigerator compartment duct 24, a freezer compartment duct 25, and a vegetable compartment duct (not shown) connected to the downstream side of the cooling fan 21. Cold air is supplied to the chamber 84, the freezer compartment 18, the vegetable compartment 17, and the like. Thereby, each store room is cooled.

The refrigerator compartment 84 is arrange | positioned at the uppermost part of the refrigerator main body 1, and as shown in FIG. 2, the some shelf board 27 is provided so that attachment or detachment is possible, and the space in the refrigerator compartment 84 is divided into several space up and down. ing. Further, as shown in FIG. 2, the refrigerator compartment 84 is provided with two low-temperature storage compartments, for example, a partial freezer compartment 28 and a chilled compartment 29 in a two-tiered manner.

The refrigerator compartment 84 is cooled to a temperature that does not freeze, for example, 1 to 5 ° C., and the partial freezer chamber 28 in the refrigerator compartment is cooled to a temperature suitable for micro-freezing storage, for example, −2 to −3 ° C. The chilled chamber 29 is configured to be cooled to a temperature lower than the refrigerator compartment 84 and slightly higher than the partial freezer chamber 28, for example, around 1 ° C.

The door of the refrigerator compartment 84 is composed of the double doors 7. The double door type door 7 includes a first door 71 and a second door 72, and the first door 71 and the second door 72 are pivotally supported by the refrigerator main body 1 by a door hinge portion 83. . Like the first door 71 illustrated in FIG. 4, the first door 71 and the second door 72 are made of a resin door inner frame 31 and a door outer frame 32 made of resin like the door inner frame 31. The space surrounded by the transparent exterior plate 33 (see FIG. 6) such as a glass plate constituting the door surface is filled with a foam insulation material 34 for door such as hard foam urethane.

One door of the double door type door 7, in this embodiment, the free end side of the first door 71 having a narrow width in the left-right direction when the refrigerator 80 is viewed from the front (the side not pivotally supported by the refrigerator body 1). Further, a strip-like long and narrow rotating partition body 35 that closes a gap between the door end surfaces of the first door 71 and the second door 72 that is generated when the door is closed is provided. On the other door of the double doors 7, in the present embodiment, the wide second door 72 in the left-right direction has a display unit 36 that displays the operating state of the refrigerator 80 or the like at the bottom as shown in FIG. Is provided. Further, as shown in FIGS. 1 and 5, a door switch 37 that detects opening / closing of the door using the first door 71 and the second door 72 is incorporated in the upper part of the double door 7.

(2. Door switch configuration of the refrigerator compartment door)
Next, the configuration of the door switch for detecting the opening / closing of the double doors 7 will be described with reference to FIGS.

FIG. 6 is a diagram for explaining a main part of the double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 7 is a diagram for describing a configuration of a door opening / closing door switch portion of the double doors of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 8 is a perspective view illustrating a door opening / closing door switch portion of the double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 9 is an exploded perspective view illustrating a door opening / closing door switch portion of the double door of the refrigerator according to the example of the embodiment of the present disclosure.

6 to 9, the door switch 37 for detecting the opening / closing of the double door 7 is a reed switch. The reed switch is composed of a magnet 38 and a Hall IC 39. The magnet 38 is provided on the door end surface of the door (the first door 71 in this embodiment) on the side where the rotary partition 35 is provided, and the Hall IC 39 is on the door (the main side where the display unit 36 is provided). In the embodiment, it is provided on the door end face of the second door 72). In addition, this indication is not restricted to this structure, The magnet 38 may be provided in the door end surface of the 2nd door 72, and Hall IC39 may be provided in the door end surface of the 1st door 71. FIG.

As shown in FIG. 9, a first door reinforcing plate 40a is provided on the inner surface of the first door outer peripheral frame 32a of the first door 71, and a first opening 41a is provided in the first door reinforcing plate 40a. The magnet 38 is disposed in the first opening 41a, and the back side of the magnet 38 is covered with a resin-made first switch protective cover 42a. The magnet 38 is brought into close contact with the inner surface of the first door outer frame 32a by engaging with a locking rib 43 (see FIG. 7) provided on the inner surface of the first door outer frame 32a.

Moreover, as shown in FIG. 9, the 2nd door reinforcement board 40b is provided in the 2nd door outer periphery frame 32b inner surface of the 2nd door 72, and the 2nd opening 41b is provided in the 2nd door reinforcement board 40b. . The Hall IC 39 is screwed to the second opening 41b, and the inside of the Hall IC 3 is covered with a resin-made second switch protective cover 42b. In addition, a hole IC opening 44 is provided in a portion of the second door outer peripheral frame 32b facing the hall IC 39, and the hall IC opening 44 is covered with a detachable resin lid 45. As described above, the second door 72 is configured to be capable of exchanging and maintaining the Hall IC 39.

In addition, although the door switch 37 is provided in the upper part of the double doors 7 in this embodiment, it may be provided in the lower part of the double doors 7 near the display unit 36.

(3. Configuration of rotating partition)
Next, the structure of the rotating partition provided in the double doors 7 will be described.

FIG. 10A is an external perspective view of a rotary partition provided in a double door of a refrigerator according to an example of an embodiment of the present disclosure. FIG. 10B is a diagram viewed from the back of the rotating partition of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 11 is an exploded perspective view showing a rotary partition provided in a double door of the refrigerator according to the example of the embodiment of the present disclosure. 12 is a cross-sectional view taken along line 12-12 of FIG. 10B showing a rotary partition provided on a double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 13 is a cross-sectional view taken along line 13-13 of FIG. 10B showing a rotary partition provided on a double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. 10B showing a rotary partition provided on a double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 15 is a cross-sectional view taken along line 15-15 of FIG. 10B showing a rotary partition provided in a double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 16 is a cross-sectional view taken along line 16-16 of FIG. 10B showing a rotary partition provided on a double door of the refrigerator according to the example of the embodiment of the present disclosure. FIG. 17A is a diagram for describing a structure of a rotating partition portion provided in a double door of a refrigerator according to an example of an embodiment of the present disclosure. FIG. 17B is another diagram for explaining the structure of the rotating partition portion provided in the double doors of the refrigerator according to the example of the embodiment of the present disclosure.

As described above, the rotary partition 35 is provided on one of the left and right doors of the double doors 7 (in the present embodiment, the first door 71). Specifically, as shown in FIG. 6, the rotary partition 35 is pivotally supported on the inner surface of the first door inner frame 31 a of the first door 71 by the hinge member 46 at the upper and lower portions thereof. It is configured to rotate in conjunction with opening / closing of 71.

As shown in FIG. 13 and the like, the rotary partition 35 is formed by fitting the opening portion of the storage chamber side outer member 47 and the opening portion of the outer air side outer member 48 into the storage chamber side outer member 47 and the outside air side. A space is formed between the outer member 48 and the outer member 48. A heat insulating material 49 (see FIG. 11) made of foamed polystyrene or the like is incorporated in the upper and lower end portions of the hollow portion of the rotating partition 35, and the remaining most of the foamed heat insulating material 50 for the rotating partition such as urethane foam. Is filled.

The storage chamber side outer member 47 and the outside air side outer member 48 are both formed of a resin having low thermal conductivity. The opening edge of one of the storage chamber side outer member 47 and the outside air side outer member 48, in this embodiment, the opening edge of the storage chamber side outer member 47 is a double wall made up of an inner wall 47a and an outer wall 47b. It is configured. The double wall has a concave groove 51 between the inner wall 47a and the outer wall 47b. The other opening end edge of the storage chamber side outer member 47 and the outside air side outer member 48, in this embodiment, the opening edge portion 48a of the outer air side outer member 48, is fitted into the concave groove 51 to store the storage chamber side outer member. 47 and the outside air side outer member 48 are coupled. The height of the inner wall 47a (the height rising from the flat surface portion of the storage chamber side outer member 47) is set higher than that of the outer wall 47b.

In addition, as shown in FIG. 11, the storage chamber side outer member 47 is formed with an injection hole 52 for injecting urethane foam at a substantially central portion in the longitudinal direction, and an air vent hole 53 is formed near both ends in the longitudinal direction. ing. As shown in FIG. 14, an elastic buffer sheet 54 is attached to the side surface of the storage chamber side outer member 47 so as to close the injection hole 52 and the air vent hole 53.

In the present embodiment, the injection hole 52 formed in the storage chamber side outer member 47 is described as an example in which a hole having a predetermined diameter is formed on the same plane as the flat portion of the storage chamber side outer member 47. However, a stepped portion that is recessed from the flat portion of the storage chamber side outer member 47 to the inner space side is provided, and the injection hole 52 may be formed in the stepped portion.

In this case, the foamed urethane remaining in the vicinity of the injection hole 52 after the injection of the urethane foam can be absorbed by the stepped portion recessed to the inner space side, and the buffer sheet 54 that closes the injection hole 52 is securely attached in a flat shape. Can be attached.

Similarly, the air vent hole 53 may be provided with a stepped portion that is recessed from the flat portion of the storage chamber side outer member 47 toward the inner space, and may be formed in the stepped portion.

Further, a metal rotating partition reinforcing plate 55 is provided on the inner surface of the storage chamber side outer member 47, and is fixed to the inner surface of the storage chamber side outer member 47 by claws 56 as shown in FIG. Has been. The rotating partition reinforcing plate 55 is formed with a plurality of holes 57 distributed over almost the entire area in the longitudinal direction. Some of the plurality of holes 57 are provided to oppose the injection hole 52 and the air vent hole 53 provided in the storage chamber side outer member 47.

Furthermore, a very small gap is provided between the rotating partition reinforcing plate 55 and the inner surface of the storage chamber side outer member 47, and a part of the foam insulating material 50 for the rotating partition enters the gap. Layered.

In addition, a rotary partition magnet 58 and a dew condensation prevention heater 59 are provided on the inner surface of the outside air side outer member 48. The rotary partition magnet 58 is disposed at a position facing the gasket 71a on the inner peripheral surface of the first door 71 and the gasket 72a (see FIG. 6) on the inner peripheral surface of the second door 72.

As shown in FIG. 12, the condensation prevention heater 59 is wired in the rotary partition 35 through the shaft support portion 46 a of the hinge member 46 provided on the upper side of the rotary partition 35. As shown in FIGS. 11 and 12, a cylindrical member 60 is fitted in the shaft support portion 46 a and wired to the foamed heat insulating material filling region through the cylindrical member 60. The cylindrical member 60 has a length up to the middle in the vertical direction of the heat insulating material 49 made of foamed polystyrene provided on the upper side of the rotary partition 35. The tubular member 60 is disposed at a position overlapping the heat insulating material 49 in the vertical direction of the rotary partition 35.

The dew condensation prevention heater 59 and the rotating partition magnet 58 are attached to the inner surface of the outside air side outer member 48 with a tape 61 (see FIG. 13 and the like) in an area filled with the foaming heat insulating material 50 for the rotating partition. The outer surface is covered with a tape 61.

The upper end of the rotary partition 35 is covered with a cap 62 (see FIG. 10), and the lower end is formed between the lower opening side of the storage chamber side outer member 47 and the lower opening side of the outside air side outer member 48. It is closed by fitting.

Further, as shown in FIGS. 17A and 17B, an auxiliary is provided on either the inner surface or the vertical wall of the second door inner frame 31b of the second door 72 that faces the rotating partition free end 35a side of the rotating partition 35. A seal member 63 is provided.

Next, the function and effect of the refrigerator 80 configured as described above will be described.

In the refrigerator 80 of the present embodiment, when one of the left and right doors of the double doors 7 is opened and closed, the door switch 37 detects the opening and closing of the door. The door switch 37 is composed of a reed switch, and the magnet 38 and the Hall IC 39 are provided on the door end surfaces of the first door 71 and the second door 72 facing each other. With such a configuration, door opening / closing detection is performed between the first door 71 and the second door 72.

That is, when the door end surface of the first door 71 or the second door 72 moves relative to the other door, the opening / closing of the door is detected. Therefore, in the conventional refrigerator configured to detect the movement of the first door or the second door with respect to the refrigerator body, two door switches are required, but according to the configuration of the refrigerator 80 of the present embodiment. In this case, one door switch 37 is sufficient. Therefore, the wiring of the door switch 37 is facilitated and the cost can be reduced.

Further, the magnet 38 and the Hall IC 39 of the door switch 37 are respectively connected to the first door 71 and the second door 72 in accordance with the opening / closing of at least one of the first door 71 and the second door 72, as indicated by an arrow X in FIG. Is shifted in the direction of separation and approaching. For this reason, a magnet and Hall IC are provided opposite to the refrigerator main body and the door, respectively, and the opening and closing of the door is detected more sharply than in the conventional configuration in which the axis of each magnet and Hall IC is separated and approached substantially. can do.

Therefore, even if a magnet 38 having a slightly weaker magnetic force than that of the conventional magnet 38 is used to reduce the cost, or the manufacturing position of the magnet 38 and the Hall IC 39 is slightly displaced at the time of manufacture. In addition, it is possible to detect door opening / closing with high accuracy.

Furthermore, since the door switch 37 does not have a switch projection like a mechanical switch, the appearance of the refrigerator is not impaired.

Further, even if the door switch 37 is provided with a maintenance cover plate 45 so as to cover the Hall IC 39, the cover plate 45 covering the Hall IC 39 is provided on the door end surface, and the door end surface opens the door. When it is opened, the lid plate 45 is not conspicuous because it is not located in an easily visible place like the front face of the refrigerator compartment 84 of the refrigerator body 1. Therefore, with such a configuration, the beauty of the refrigerator can be improved.

Further, the door switch 37 is provided with a magnet 38 on the first door 71 side where the rotary partition 35 is provided and a hall IC 39 on the second door 72 side. With such a configuration, the 100 V wiring to the dew condensation prevention heater 59 provided in the rotary partition 35 and the DC wiring to the Hall IC 39 can be clearly provided on separate doors. Therefore, the wiring work can be simplified, and it is possible to prevent a mistake in wiring between the 100V wiring and the DC wiring during the assembly work.

Moreover, since the display part 36 is provided in the 2nd door 72 side, DC wiring to Hall IC39 and DC wiring to the display part 36 are put together from the door hinge part 83 to the refrigerator main body 1 side. Wiring can be made to a control unit (not shown), and workability can be further improved.

Thus, in the door switch 37 of the refrigerator 80 of the present embodiment, the first door 71 provided with 100V wiring and the characteristics of the second door 72 provided with DC wiring are used. A magnet 38 and a Hall IC 39 are provided. With such a configuration, reliability and productivity can be improved at the same time.

Further, as shown in FIG. 9, a metal first door reinforcement plate 40 a and a second door reinforcement are provided on the door end surfaces of the first door 71 and the second door 72 of the double door 7 provided with the door switch 37. Each plate 40b is provided. The first door reinforcement plate 40a is provided with a first opening 41a, and the second door reinforcement plate 40b is provided with a second opening 41b. A magnet 38 is disposed in the first opening 41a, and a Hall IC 39 is disposed in the second door reinforcing plate 40b. With such a configuration, it is possible to prevent a decrease in detection accuracy due to a decrease in magnetic force of the magnet 38 and a decrease in sensitivity of the Hall IC 39 while improving the strength of the door end surface. Therefore, with such a configuration, high door opening / closing detection accuracy can be maintained.

Further, the double door 7 provided with the door switch 37 is filled with a foam insulation material 34 for door such as urethane. Further, the magnet 38 and the Hall IC 39 of the door switch 37 are covered with a resin-made first switch protection cover 42a and a second switch protection cover 42b. With such a configuration, it is possible to prevent the foam heat insulating material 34 for the door from flowing into the magnet 38 and the Hall IC 39 portion of the door switch 37. Accordingly, it is possible to prevent a decrease in detection sensitivity caused by the foam insulation material 34 for the door entering the magnet 38 or the Hall IC 39 portion of the door switch 37, and to improve door strength and heat insulation while maintaining high door opening / closing detection performance. Can be made.

In particular, with respect to the door strength, in this embodiment, the first door 71 and the second door 72 of the double door 7 are filled with the foam foam heat insulating material 34 and the metal first door reinforcing plate. 40a and a second door reinforcing plate 40b are provided. With such a configuration, the reinforcing effect of the first door reinforcing plate 40a and the second door reinforcing plate 40b and the reinforcing effect of the foam foam heat insulating material 34 are combined, and the door strength can be greatly improved. Thereby, it can apply also to the large sized refrigerator which requires high rigidity.

In this embodiment, the door switch 37 is provided on the upper part of the double door 7. With such a configuration, the wiring routed from the refrigerator main body 1 to the Hall IC 39 through the door hinge 83 can be shortened, and the cost can be reduced by shortening the wiring. Even if the user touches the door end face with a wet hand and the water flows down the door end face, water intrusion into the Hall IC 39 portion when the door switch 37 is provided at the lower part of the door. There is no concern. Therefore, such a configuration can provide a highly reliable refrigerator.

In addition, the door switch 37 may be provided in the lower part of the double doors 7. In this case, it is desirable to provide a Hall IC 39 below the second door 72 provided with the display unit 36 and take sufficient measures to prevent water intrusion. Further, in this case, the wiring connecting the Hall IC 39 and the display unit 36 can be shortened, the cost can be reduced by shortening the wiring, and the workability can be improved at the same time.

As described above, according to the refrigerator 80 of the present embodiment, it is possible to detect door opening / closing with high accuracy without impairing aesthetics or incurring cost increases.

The refrigerator 80 of the present embodiment has the following functions and effects in addition to the functions and effects described above.

That is, the refrigerator 80 has a high heat insulating property of the rotary partition 35 provided in the double doors 7, and can reduce collision noise and vibration during rotation of the rotary partition 35.

More specifically, the rotary partition 35 pivotally supported by the first door 71 of the double door 7 of the refrigerator 80 is foamed and insulated for the rotary partition between the storage chamber side outer member 47 and the outside air side outer member 48. The material 50 is filled. Therefore, the heat insulating property is remarkably higher than that in which the conventional foamed polystyrene is used as a heat insulating material. Therefore, it is possible to strongly and effectively suppress the outside heat that tends to enter the refrigerating chamber 84 via the rotary partition 35.

The rotating partition 35 is provided with a buffer sheet 54 on the side of the storage chamber of the storage chamber side outer member 47. With such a configuration, even if the rotary partition 35 rotates to the inner surface side of the first door 71 and collides with the vertical wall surface of the first door inner frame 31a, the collision sound and vibration can be suppressed. . Therefore, it is possible to provide a refrigerator that hardly feels a collision sound and vibration even when the rotary partition 35 rotates in conjunction with the opening of the first door 71.

Further, the buffer sheet 54 is provided over the longitudinal direction of the surface of the storage chamber side outer member 47 on the refrigerator compartment 84 side. With such a configuration, since the injection hole 52 and the air vent hole 53 are covered with the buffer sheet 54, the appearance of the surface of the storage chamber side outer member 47 on the refrigerator compartment 84 side can be improved.

In addition, the rotary partition 35 may be elongated vertically, and when the foaming heat insulating material 50 for the rotary partition is filled, the storage chamber side outer member 47 and the outside air side outer member 48 are generated by the foaming pressure. It is easy for the foaming heat insulating material 50 for rotating partitions to leak out from the portion where the two are fitted.

However, in the rotary partition 35 in the present embodiment, as shown in FIG. 13 and the like, the opening edge of the storage chamber side outer member 47 is formed of a double wall made up of an inner wall 47a and an outer wall 47b. . A concave groove 51 is provided between the inner wall 47a and the outer wall 47b of the double wall. The opening edge 48 a of the outside air side outer member 48 is fitted into the concave groove 51. With such a configuration, the creeping distance from the inside of the rotating partition 35 to the outside, in other words, the distance from the inside of the rotating partition 35 to the outside through which the foamed heat insulating material 50 for the rotating partition leaks is extremely long. It will be a thing. That is, the distance by which the foaming heat insulating material 50 for the rotating partition leaks from the inside of the rotating partition 35 to the outside is the outer surface of the inner wall 47a of the storage chamber side outer member 47 and the opening edge 48a of the storage chamber side outer member 47. The distance between the contact portion with the inner surface and the distance between the contact portion between the outer surface of the opening edge 48 a of the storage chamber side outer member 47 and the inner surface of the outer wall 47 b of the storage chamber side outer member 47 is a long distance. The fitting between the concave groove 51 between the inner wall 47a and the outer wall 47b and the opening edge 48a of the outer air side outer member 48 even if either the storage chamber side outer member 47 or the outer air side outer member 48 is bent or deformed. As a result, the deformation is corrected and there is no gap.

Therefore, it is possible to reliably prevent the foaming heat insulating material 50 for the rotary partition from leaking out from the fitting portion where the storage chamber side outer member 47 and the storage chamber side outer member 47 are fitted. Thereby, the quality of the refrigerator 80 can be improved greatly. That is, the fitting portion of the rotating partition 35 where the storage chamber side outer member 47 and the storage chamber side outer member 47 are fitted together is a portion that is easy for the user to touch. For this reason, if the foamed heat insulating material protrudes, the user may have a distrust. However, according to the structure of the rotary partition 35 of the refrigerator 80 of the present embodiment, the foaming heat insulating material 50 for the rotary partition can be prevented from protruding. Therefore, distrust to the user can be wiped out, and the quality of the refrigerator can be greatly improved. That is, it is possible to prevent a deterioration in quality caused by filling the rotating partition body 35 with the foaming heat insulating material 50 for the rotating partition body, and to obtain a refrigerator with high quality while improving the heat insulating property of the rotating partition body 35. it can.

The upper and lower portions of the rotary partition 35 are pivotally connected to the first door 71 by a hinge member 46. In addition, a heat insulating material 49 made of styrene foam is provided in a portion where the hinge member 46 is installed. With such a configuration, the foamed heat insulating material 50 for the rotating partition can be prevented from entering the shaft support portion of the hinge member 46. Therefore, with such a configuration, the rotary partition 35 can rotate stably.

In particular, in the present embodiment, as shown in FIG. 11, the cylindrical member 60 has a length (rotary partition) from the shaft support portion 46 a of the hinge member 46 to at least a part of the condensation prevention heater 59. 35 in the vertical direction). The cylindrical member 60 covers at least a part of the condensation prevention heater 59. With such a configuration, even when the foam heat insulating material 50 for the rotary partition enters the portion on the hinge member 46 side through a slight gap around the outer periphery of the heat insulating material 49 made of polystyrene foam, It can prevent reliably that the foaming heat insulating material 50 for rotation partitions enters into the axial support part 46a. Therefore, with such a configuration, the rotation operation of the rotary partition 35 can be ensured.

Further, the tubular member 60 is passed through a condensation prevention heater 59 drawn into the rotary partition 35 via the shaft support portion of the hinge member 46. With such a configuration, the dew condensation prevention heater 59 cannot move such as expansion and contraction required in accordance with the rotation of the rotating partition 35 in the area filled with the foaming heat insulating material 50 for the rotating partition, but is cylindrical. Within the member 60, movement such as expansion and contraction can be performed freely. Therefore, even if the foaming heat insulating material 50 for the rotating partition is filled, it is possible to prevent disconnection due to the twisting of the condensation preventing heater 59 or the like.

Further, the rotary partition 35 is provided with a rotary partition magnet 58 attached to the inner surface of the outside air side outer member 48 and covered with a tape 61 in the area filled with the foam insulation 50 for the rotary partition. (See FIG. 13). With such a configuration, the foamed heat insulating material 50 for the rotating partition can be prevented from entering between the outside air side outer member 48 and the rotating partition magnet 58, and the magnetic force is reduced due to the entry of the foam insulating material 50 for the rotating partition. Can be prevented. Thus, when the door is closed, the rotary partition 35 can be reliably adsorbed to the magnets of the gasket 71a provided on the inner surface of the first door 71 and the gasket 72a provided on the inner surface of the second door 72. It becomes possible. Therefore, with such a configuration, the refrigerating chamber 84 can be reliably and satisfactorily sealed by the rotating partition 35, and the intrusion of outside air heat can be more effectively suppressed to improve energy saving. .

The rotating partition 35 is provided with a metal rotating partition reinforcing plate 55 on the inner surface of the storage chamber side outer member 47. With such a configuration, it is possible to prevent deformation caused by thermal contraction of the foaming heat insulating material 50 for the rotary partition, and it is possible to further improve the sealing performance when the door is closed. Thereby, energy saving can be further improved.

Further, the rotary partition 35 has a foam partition heat insulating material 50 inserted between the inner surface of the storage chamber side outer member 47 and the metal rotary partition reinforcing plate 55, so that the metal rotary partition Between the body reinforcing plate 55 and the inner surface of the storage chamber side outer member 47, a thin heat insulating layer of the foaming heat insulating material 50 for the rotating partition is formed.

With such a configuration, it is possible to prevent the low temperature in the refrigerator compartment 84 from being directly conducted to the metal rotating partition reinforcing plate 55 via the storage compartment side outer member 47 and being diffused to the outside air. Further, it is possible to prevent the heat of the rotating partition reinforcing plate 55, which slightly increases in temperature due to the influence of the heat of the dew condensation prevention heater 59, from entering the refrigerating chamber 84 via the storage chamber side outer member 47. . Therefore, the heat insulation effect by the rotating partition 35 becomes strong by both actions, and the energy saving performance can be further improved accordingly.

A plurality of holes 57 are formed in the rotary partition reinforcing plate 55 in the longitudinal direction. The plurality of holes 57 have holes facing the injection hole 52 and the air vent hole 53 of the foaming heat insulating material 50 for the rotary partition provided in the storage chamber side outer member 47. With such a configuration, it is possible to reduce the weight of the rotating partition reinforcing plate 55 while allowing injection of the foam insulating material 50 for the rotating partition from the injection hole 52 provided in the storage chamber side outer member 47. . Thereby, the rotating partition 35 itself can be reduced in weight, the rotation operation of the rotating partition 35 is stabilized, and the inertial force of the rotating partition 35 generated when the rotating partition 35 rotates is reduced. Therefore, collision noise and the like can be further reduced.

In addition, the rotary partition 35 has a square shape in the present embodiment. With such a configuration, it is possible to exert a good heat insulation effect over the entire left and right regions of the rotary partition 35, and the heat insulation effect can be enhanced.

Moreover, as shown in FIGS. 17A and 17B, an auxiliary seal member 63 made of a flexible material is provided between the rotational free end side of the rotary partition 35 and the vertical wall inner surface of the second door 72. By setting the gap, the gap T generated by the rotation trajectory of the rotary partition 35 can be closed by the auxiliary seal member 63. With such a configuration, it is possible to more reliably prevent outside air from entering from the gap between the rotary partition free end 35a and the inner surface of the door vertical wall, and further improve energy saving.

In the present embodiment, an example in which the rotary partition magnet 58 is embedded in the rotary partition 35 has been described as an example. However, this is because the storage chamber side outer member 47 and the outdoor air side outer member 48 are heated. It is assumed that it is formed of a resin having low conductivity. That is, the rotary partition magnet 58 is embedded in the rotary partition 35 in order to ensure that the gasket including the door-side rotary partition magnet 58 is attracted to the rotary partition 35 and to ensure sealing performance. However, the present disclosure is not limited to this form, and the storage compartment side outer member 47 is configured by a magnetized iron plate or the like without providing the rotary partition magnet 58 inside the rotary partition 35. Also good.

In this case, since the magnet arrangement space portion inside the rotary partition 35 can be filled with the foaming heat insulating material 50 for the rotary partition, the heat insulation can be improved and the strength of the rotary partition can be increased. Furthermore, in this case, the use of an iron plate or the like for the storage chamber side outer member 47 eliminates the need for the rotating partition reinforcing plate 55 provided on the storage chamber side outer member 47. Therefore, with such a configuration, it is possible to achieve an optimum balance of heat insulating properties, strength, and cost.

Further, in the present embodiment, the embodiment in which the heat insulating material 49 made of foamed polystyrene is provided in the vicinity of the hinge members 46 at the upper and lower ends of the rotary partition 35 has been described as an example, but the present disclosure is limited to this. It is not something. For example, a seal member formed separately or a seal member formed integrally with a rib or the like on the caps of the upper and lower end portions is disposed in the vicinity of the hinge members 46 at the upper and lower end portions of the rotary partition 35 and rotated. Urethane foam may be filled in almost the entire area inside the rotary partition 35 including the vicinity of the hinge members 46 at the upper and lower ends of the partition 35.

In this case, it is possible to obtain an effect such as an improvement in heat insulation performance by improving the filling rate of urethane foam, an improvement in strength, and a cost reduction due to the absence of the heat insulating material 49 made of polystyrene foam.

As mentioned above, although this indication was explained using an embodiment, this indication is not limited to this. That is, the embodiment disclosed this time should be considered as illustrative in all points and not restrictive. That is, the scope of the present disclosure is shown not by the above description but by the scope of claims, and is intended to include meanings equivalent to the scope of claims and all modifications within the scope.

This disclosure provides a refrigerator with high door opening / closing detection accuracy without deteriorating aesthetics and without increasing costs. Therefore, the present invention can be widely applied to refrigerators of various types and sizes such as home use and business use.

DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Outer box 3 Inner box 4

Foam insulation material

5,6 Partition plate 7

Double doors

8, 9, 10, 11 Door 83 Door hinge part 84 Refrigeration room 85 Switching room 86 Ice making room 17 Vegetable room 18 Freezing room 19 Cooling chamber 20 Cooler 21 Cooling fan 22 Defrosting unit 23 Compressor 24 Refrigeration chamber duct 25 Freezer chamber duct 26 Vegetable chamber duct 27 Shelf plate 28 Partial freezer chamber 29 Chilled chamber 31 Door inner frame 31a First door inner frame 31b Second Door inner frame 32 Door outer frame 32a First door outer frame 32b Second door outer frame 33 Transparent exterior plate 34 Foam insulation for door 35 Rotating partition 35a Rotating partition free end 36 Display unit 37 Door switch 38 Magnet 39 Hall IC
40a First door reinforcing plate 40b Second door reinforcing plate 41a First opening 41b Second opening 42a First switch protective cover 42b Second switch protective cover 43 Locking rib 44 Hall IC opening 45 Lid plate 46 Hinge member 46a Shaft support 47 Storage chamber side outer member

47a Inner wall

47b Outer wall 48 Outside air side outer member 48a Opening edge portion 49 Insulating material 50 Foam heat insulating material for rotating partition 51 Recessed groove portion 52 Injection hole 53 Air vent hole 54 Buffer sheet 55 Rotating partition reinforcing plate 56 57 hole 58 rotating partition magnet 59 dew condensation prevention heater 60 cylindrical member 61 tape 62 cap 63 auxiliary seal member 71 first door 72

second door

71a, 72a gasket

Claims

The refrigerator body,
A refrigerator compartment provided in the refrigerator body;
A double door that opens and closes the refrigerator compartment;
A door switch for detecting opening and closing of the double doors,
The double doors have a first door and a second door,
The first door and the second door have door end surfaces that face each other,
The door switch is composed of a reed switch having a magnet and a Hall IC,
The magnet is provided on the door end surface of the first door or the door end surface of the second door,
The Hall IC is provided on the door end surface where the magnet is not provided among the door end surface of the first door and the door end surface of the second door,
The refrigerator in which the magnet and the Hall IC are arranged to face each other.
The refrigerator according to claim 1, wherein the door switch is provided at an upper portion of the double door.
The door switch is provided at a lower part of the double door.
The refrigerator according to claim 1, wherein a display unit is provided on one of the first door and the second door of the double door that is provided with the Hall IC of the door switch.
One of the first door and the second door of the double doors is provided with a rotating partition that closes the gap between the door end faces,
The rotating partition has a heater for an AC power source,
The magnet of the door switch is provided on any one of the first door and the second door of the double doors provided with the rotating partition,
The refrigerator according to any one of claims 1 to 3, wherein the Hall IC is provided in the first door or the second door, which is not provided with the rotating partition.
Of the first door and the second door of the double door,
The display part is provided on the first door or the second door where the rotating partition is not provided,
The refrigerator according to any one of claims 1 to 4, wherein the hall IC of the door switch is provided on the first door or the second door provided with the display unit.
A metal reinforcing plate is provided on each of the door end surfaces of the first door and the second door of the double door,
Among the reinforcing plates, at least the magnet of the door switch is disposed, the reinforcing plate of the first door or the second door is provided with an opening,
The refrigerator according to any one of claims 1 to 5, wherein the magnet is disposed in the opening.
The double doors are configured to be filled with foam heat insulating material,
The refrigerator according to any one of claims 1 to 6, wherein the magnet and the hall IC of the door switch are each covered with a switch protection cover.