JP2018004089A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator capable of performing highly accurate door opening/closing detection without damaging appearance and causing increase in cost.SOLUTION: A door switch 37 is provided for detecting door opening/closing of a biparting-type door for opening/closing a refrigeration chamber. The door switch 37 is constituted by a reed switch, and a magnet 38 and a Hall IC 39 are arranged opposing to door end surfaces of a first door 71 and a second door 72 of the biparting-type door opposing to each other. Thereby, the door switch does not appear on an outside surface and appearance improves. As the magnet and the Hall IC are approaching/separated in a positionally deviated manner, so that the door opening/closing can be detected sharply, and the detection accuracy improves. Furthermore, the door switch can detect the opening/closing of each door by one reed switch, and cost can be decreased.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a refrigerator, and more particularly to a door opening / closing detection configuration of the refrigerator.

  Generally, a refrigerator includes a refrigerator compartment, a freezer compartment, a vegetable compartment, and the like, and the refrigerator compartment is provided at the top of the refrigerator main body so that many foods can be stored in a refrigerator. For this reason, the door of this refrigerator compartment makes it easy to take in and out food as a double door. And this door is provided with the door switch which detects opening and closing of a door (for example, refer patent document 1).

  FIG. 18 shows the refrigerator described in the above-mentioned Patent Document 1. This refrigerator 100 has a refrigerator room 101 in the upper part, an ice making room (not shown) and a switching room 102 in the lower part, and a freezer room 103 and vegetables in the lower part. A chamber 104 is provided. A double door 105 is provided at the front opening of the refrigerator compartment 101, and the opening / closing of the door 105 is detected by a door switch 107 provided in the refrigerator main body 106.

Japanese Patent Laying-Open No. 2015-203549

  The refrigerator described in Patent Document 1 detects the opening and closing of the door 105 and informs the user that the door 105 remains open, or makes food preservation good as described in Patent Document 1. The turning on / off of the ultraviolet light irradiation means 108 can be controlled, and the usability and performance of the refrigerator can be improved.

  However, since the door switch 109 is provided in the refrigerator main body 106 and detects whether the door 106 opens or closes when the door 106 abuts or separates from the opening end surface of the refrigerator main body 106, in the case of a double door, A door switch has to be provided corresponding to the door of this type, which causes the wiring to become complicated and increases the cost.

  Further, the door switch 107 has a problem that the aesthetic appearance is lost because the switch protrusion that can be freely protruded and projected from the opening end face of the refrigerator main body 106 is noticeable when the door 105 is opened.

  This aesthetic can be eliminated at a considerable level by using the door switch 107 as a reed switch. However, a lid that covers the Hall IC, which is a component of the reed switch, is still present on the opening end surface of the refrigerator main body 106. As a result, some aesthetic problems remain. In addition, the cost is increased compared to mechanical switches. In addition, the detection of door opening / closing is close to or away from the magnet and the Hall IC facing each other, so the detection accuracy is likely to be reduced due to variations in magnetic force. For example, even when the door 107 is slightly opened There were cases where it could not be done. Therefore, it has been necessary to use a magnet having a strong magnetic force, which has a problem of further increasing the cost.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a refrigerator capable of detecting door opening / closing with high accuracy without deteriorating aesthetics or increasing costs.

  In order to achieve the above object, according to the present invention, the door switch for detecting opening / closing of the door is constituted by a reed switch, and the magnet and the Hall IC of the reed switch face each other of the first door and the second door of the double door. It is set as the structure arrange | positioned facing the door end surface.

  As a result, the door switch does not appear on the outer surface of the refrigerator body, and the appearance is improved, and the door opening / closing is detected between the first door and the second door, so the door is opened between the refrigerator body and the door. Unlike the one that detects opening and closing, two switches are not required and only one door switch is required, and the cost can be reduced. In addition, since the magnet and the Hall IC approach or separate from each other in such a way that they are displaced by the opening and closing of the door, the opening and closing of the door can be detected sharply, and the detection accuracy improves.

  According to the above configuration, the present invention can be a low-cost refrigerator with high door opening / closing detection accuracy without deteriorating the beauty.

The perspective view of the refrigerator in Embodiment 1 of this invention Vertical section of the refrigerator Perspective view of the refrigerator with the double doors open A perspective view showing one of the double doors of the refrigerator Top view of the refrigerator with the double doors open The expanded sectional view which shows the principal part of the double door type door of the refrigerator Enlarged sectional view showing the door opening / closing door switch part of the double doors of the refrigerator The perspective view which shows the door opening / closing door switch part of the double doors of the refrigerator The exploded perspective view which shows the door opening / closing door switch part of the double doors of the refrigerator (A) Appearance perspective view of rotating partition provided on double door of the refrigerator, (b) Rear view of the rotating partition The exploded perspective view which shows the rotation partition provided in the double door type door of the refrigerator AA sectional view of Drawing 10 (b) which shows the rotation partition provided in the double doors of the refrigerator BB sectional drawing of FIG.10 (b) which shows the rotary partition provided in the double doors of the refrigerator CC sectional drawing of FIG.10 (b) which shows the rotation partition provided in the double-folding door of the refrigerator DD sectional drawing of FIG.10 (b) which shows the rotation partition provided in the double doors of the refrigerator EE sectional drawing of FIG.10 (b) which shows the rotation partition provided in the double doors type door of the refrigerator (A) Sectional drawing which shows the other example of the rotation partition part provided in the double doors of the same refrigerator, (b) Sectional drawing which shows the other example of the same Sectional drawing which shows the principal part of the conventional folding door type door of a refrigerator

  1st invention is equipped with the refrigerator main body, the refrigerator compartment provided in the said refrigerator main body, the double doors which open and close this refrigerator compartment, and the door switch which detects opening and closing of the said double doors, The said door switch is lead In addition to a switch, the reed switch magnet and the Hall IC are arranged to face the door end surfaces of the first and second doors facing each other.

As a result, the door switch does not appear on the outer surface of the refrigerator body, and the appearance is improved, and the door opening / closing is detected between the first door and the second door, so the door is opened between the refrigerator body and the door. Unlike the one that detects opening and closing, two switches are not required and only one door switch is required, and the cost can be reduced. In addition, since the magnet and the Hall IC approach or separate from each other in such a way that they are displaced by the opening and closing of the door, the opening and closing of the door can be detected sharply, and the detection accuracy improves.

  According to a second invention, in the first invention, the door switch is provided on an upper portion of the double door.

  As a result, the wiring routed from the upper end of the refrigerator main body to the hall IC of the door switch via the door hinge portion or the like can be shortened, the cost can be reduced, and the user touches the door end surface with a wet hand. Even if the water flows down the end face of the door, there is no risk of the water entering the Hall IC portion, and the reliability can be improved.

  According to a third invention, in the first invention, the door switch is provided in a lower part of a double door, and a display portion is provided on a door on the side where the Hall IC of the door switch is provided.

  Thereby, the wiring which connects Hall IC of a door switch and a display part can be shortened, and workability | operativity can be improved simultaneously with the cost reduction by shortening of wiring.

  4th invention is the side which provided the rotary partition with a 100V heater which plugs up the clearance gap between door end surfaces in one door of the said double doors in 1st-3rd invention, and provided the said rotary partition A door switch magnet is provided on the door, and a hall IC is provided on the door not provided with the rotating partition.

  This makes it possible to clearly separate the heater 100V wiring and hall IC DC wiring into separate doors, simplifying the wiring work and making mistakes in the 100V wiring and DC wiring that tend to occur during assembly work. It is possible to improve both reliability and productivity at the same time.

  According to a fifth aspect of the present invention, in the first to fourth aspects of the present invention, a display portion is provided on the door on the side not provided with the rotary partition of the sound opening type door, and the hall IC of the door switch is provided on the door provided with the display portion. The configuration is provided.

  As a result, the DC wiring to the Hall IC and the DC wiring to the display unit can be wired together, and the workability of the wiring can be further improved.

  According to a sixth invention, in the first to fifth inventions, a metal reinforcing plate is provided on each door end face of the double doors, and at least the reinforcing plate of the door on the side where the magnet is arranged. Is configured such that an opening is provided and the magnet is disposed in the opening.

  As a result, it is possible to improve the door opening / closing detection accuracy by improving the strength of the door end face while preventing a decrease in detection accuracy due to a decrease in magnetic force.

  According to a seventh invention, in the first to sixth inventions, the double door is configured by filling a foam heat insulating material, and the magnet and the Hall IC of the door switch are covered with a switch protective cover.

  As a result, the heat insulation of the double doors can be greatly improved, and the foam insulation that improves the heat insulation can also be prevented from entering the door switch part, thereby maintaining high detection accuracy while improving the heat insulation of the refrigerator. be able to.

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

(Embodiment 1)
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. 10 to 17 are rotations provided for the double doors. It is a figure explaining the structure of a partition.

(1. Overall configuration of refrigerator)
First, the overall configuration of the refrigerator will be described with reference to FIGS. 1 to 4. The refrigerator according to the present embodiment includes a refrigerator body 1 having an opening at the front. The refrigerator body 1 is composed of 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. A plurality of storage chambers are partitioned by 6 and the like. Each storage room of the refrigerator main body 1 is openable and closable by a double door 7 and drawer type doors 8, 9, 10, and 11 adopting the same heat insulation structure as the refrigerator main body 1.

  The storage room formed in the refrigerator main body 1 includes an uppermost refrigerating room 14, a switching room 15 provided under the refrigerating room 14, and an ice making room 16 provided on the side, a switching room 15, The freezer compartment 18 is provided between the ice making compartment 16 and the lowermost vegetable compartment 17.

  In addition, a cooling chamber 19 is provided on the back surface of the freezer compartment 18 of the refrigerator body 1, and a cooling device 20 that generates cold air and a cooling fan 21 that supplies the cold air to the chambers are installed in the cooling chamber 19. It is. Further, a defrosting means 22 (hereinafter referred to as a glass tube heater) constituted by a glass tube heater or the like is provided below the cooler 20.

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

  Moreover, the cooling fan 21 is provided above the cooler 20, and the refrigerator compartment 14, the freezer compartment 18, via the refrigerator compartment duct 24, the freezer compartment duct 25, and the vegetable compartment duct (not shown) connected to the downstream side thereof. Cold air is supplied to the vegetable compartment 17 and the like to cool each chamber.

  The refrigerator compartment 14 is located at the uppermost part of the refrigerator main body 1, and as shown in FIG. 3, a plurality of shelf boards 27 are detachably provided to partition the refrigerator compartment space into a plurality of upper and lower spaces, as shown in FIG. 2. Thus, two low-temperature storage chambers, for example, a partial freezer chamber 28 and a chilled chamber 29 are provided in the lower and upper layers in the lower part.

  The refrigerator compartment 14 is cooled to 1 to 5 ° C. so that it does not freeze, the partial freezer chamber 28 in the refrigerator compartment is −2 to −3 ° C. suitable for microfrozen storage, and the chilled chamber 29 is more than the refrigerator compartment 14. It is cooled to a temperature around 1 ° C., which is low and slightly higher than that of the partial freezer chamber 28.

  The door of the refrigerator compartment 14 is a double door type door 7 comprising a first door 71 and a second door 72, and is pivotally supported on the refrigerator main body 1 by a door hinge 13 respectively. As shown in FIG. 4, it is surrounded by a resin door inner frame 31, a door outer frame 32 made of resin like the door inner frame 31, and a transparent exterior plate 33 (see FIG. 4) such as a glass plate constituting the door surface. The space portion is filled with a foam insulation material 34 for doors such as hard foam urethane.

  And the strip which closes the clearance gap between the door end surfaces of the 1st door 71 and the 2nd door 7 which are produced at the free end side of the 1st door 71 whose width is narrow in this example, the 1st door 71 which is narrow in this example. A long and narrow rotating partition 35 is provided, and the other wide second door 72 is provided with a display unit 36 for displaying the operation state of the refrigerator or the like at the lower part thereof as shown in FIG. Further, as shown in FIG. 5, a door switch 37 for detecting opening / closing of the door using the first door 71 and the second door 72 is incorporated in the upper part of the door as shown in FIG. is there.

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

  6 to 9, the door switch 37 for detecting the opening / closing of the double door 7 is constituted by a reed switch, and the magnet 38 of the reed switch is the door end surface of the first door 71 provided with the rotating partition 35. The Hall IC 39 is provided on the door on the side where the display unit 36 is provided, that is, on the door end surface of the second door 72.

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

  Further, as shown in FIG. 9, the Hall IC 39 is provided with a second opening 41b in the second door reinforcing plate 40b provided on the inner surface of the second door outer peripheral frame 32b of the second door 72, and is screwed to the second opening 41b portion. However, the inside is covered with a resin-made second switch protective cover 42b. A hole IC opening 44 is also provided in a portion of the second door outer peripheral frame 32b facing the hole IC 39 so that it can be covered with a removable resin cover plate 45 so that replacement of the hall IC 39 can be performed. is there.

  The door switch 37 is provided in the upper part of the double door 7 in this embodiment, but may be provided in the lower part of the door near the display unit 36.

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

  The rotary partition 35 is provided on the first door 71 of the double doors 7 as described above. Specifically, as shown in FIG. 6, the upper and lower portions of the rotary partition 35 are pivotally supported on the inner surface of the first door inner frame 31 a of the first door 71 by the hinge member 46, and interlock with the opening and closing of the first door 71. Are configured to rotate.

  As shown in FIG. 13 and the like, the rotating partition 35 is configured to have a hollow shape by fitting the opening portion of the storage chamber side outer member 47 and the opening portion of the outside air side outer member 48, and the hollow portion A heat insulating material 49 (see FIG. 11) made of foamed polystyrene is incorporated in the upper and lower ends, and the remaining majority is filled with a foam heat insulating material 50 for rotating partitions such as urethane foam.

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. In this example, the opening edge of the storage chamber side outer member 47 is the inner wall 47a. And the opening edge 48a of the other outer air side outer member 48 is fitted into the concave groove 51 between the inner wall 47a and the outer wall 47b of the double wall, and the storage chamber side outer member 47 and the outer wall 47b. An outside air side outer member 48 is coupled. The height of the inner wall 47a is set higher than that of the outer wall 47b.

  Further, 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 in the vicinity of both ends in the longitudinal direction. As shown in FIG. 14, a buffer sheet 54 having elasticity is attached to the side surface of the storage chamber of the storage chamber side outer member 47 so as to close the injection hole 52 and the air vent hole 53.

  The injection hole 52 formed in the storage chamber side outer member 47 is described as a hole having a predetermined diameter formed on the same surface as the flat portion of the storage chamber side outer member 47 in this embodiment. A step portion that is recessed from the flat portion of the chamber-side outer member 47 to the inner space side may be provided, and the injection hole 52 may be formed in the step 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 toward the internal space, and the buffer sheet 54 that closes the air vent hole 53 is securely attached in a flat shape. be able to.

  Similarly, the air vent hole 53 may be provided with a stepped portion recessed from the flat portion of the storage chamber side outer member 47 toward the inner space, and the air vent hole 53 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. . The rotating partition reinforcing plate 55 has a large number of holes 57 distributed over the entire length thereof, and some of the holes 57 are formed in the injection holes 52 and the air vent holes 53 provided in the storage chamber side outer member 47. They are facing each other.

  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. There is no.

  Further, on the inner surface of the outside air outer member 48, a dew condensation prevention heater 59 is provided together with a rotating partition magnet 58 facing the gaskets 71a and 72a (see FIG. 6) on the inner peripheral surfaces of the first and second doors 71 and 72. It is provided.

  As shown in FIG. 12, the dew condensation prevention heater 59 is wired in the rotary partition 35 through the shaft support portion 46a of the upper hinge member 46, and the shaft support portion 46a has a heat insulating material 49 made of an upper foamed polystyrene. A tubular member 60 having a length up to the middle is fitted, and the foamed heat insulating material filling region is wired through the tubular member 60.

  The dew condensation prevention heater 59 and the rotating partition magnet 58 are attached and fixed 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. And the entire outer surface is covered with the tape 61.

  The upper end of the rotary partition 35 is covered with a cap 62 (see FIG. 10), and the lower part is closed by fitting 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. .

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

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

  In this refrigerator, when one of the double doors 7 is opened and closed, the door switch 37 detects this, and this door switch 37 is constituted by a reed switch, and the magnet 38 and the Hall IC 39 are the first door. The door opening / closing detection is performed between the first door 71 and the second door 72 because the door end surfaces of the 71 and the second door 72 face each other.

  That is, the opening / closing of the door is detected when the door end surface of the first door 71 or the second door 72 moves relative to the other door. Therefore, unlike the prior art, two door switches are not required as in the case of detecting the movement of the first door 71 or the second door 72 with respect to the refrigerator main body 1, and only one door switch 37 is required. Therefore, wiring of the door switch 37 is facilitated and cost can be reduced.

  Further, the magnet 38 and the Hall IC 39 of the door switch 37 are separated and approached in the direction in which the respective axes β are shifted as shown by the arrow X in FIG. 7, so that they are provided facing the conventional refrigerator main body and the door. It is possible to detect the opening and closing of the door more sensitively than when the levers are separated and approached while the axes of the levers are substantially coincident.

  Therefore, even if the magnet 38 has a slightly weaker magnetic force than conventional ones and costs are reduced, or even if the position of the magnet 38 or the Hall IC 39 is slightly displaced during manufacturing, the door can be opened and closed with high accuracy. Detection is possible.

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

  Moreover, even though 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 this door end surface is opened when the door is opened. Since it is not a place that is easily noticeable like the front of the refrigerator compartment opening of the refrigerator body 1, the lid plate 45 is not noticeable and the aesthetics are improved.

  Further, the door switch 37 is provided with a magnet 38 on the first door 71 side on which the rotary partition 35 is provided and a hall IC 39 on the second door 72 side, so that the condensation prevention provided on the rotary partition 35 is prevented. The 100V wiring to the heater 59 and the DC wiring to the Hall IC 39 can be clearly divided into separate doors.

  Accordingly, 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.

  Further, since the display unit 36 is provided on the second door 72 side, the DC wiring to the Hall IC 39 and the DC wiring to the display unit 36 are gathered together and the control unit (not shown) from the door hinge unit 12 to the refrigerator body 1 side. The workability can be further improved.

  Thus, the door switch 37 is provided with the magnet 38 and the Hall IC 39 by utilizing the characteristics of the first door 71 provided with 100V wiring and the second door 72 provided with DC wiring. Productivity and productivity can be improved at the same time.

Moreover, while providing the metal 1st door reinforcement board 40a and the 2nd door reinforcement board 40b in each door end surface of the double doors 7 which provided the said door switch 37, said 1st door reinforcement board 40a, 2nd The door reinforcing plate 40b is provided with the first opening 41a and the second opening 41b, and the magnet 38 and the Hall IC 39 are disposed. Therefore, the strength of the door end surface is improved and the magnetic force of the magnet 38 is decreased and the sensitivity of the Hall IC 39 is decreased. A decrease in detection accuracy can be prevented. Therefore, high door opening / closing detection accuracy can be maintained.

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

  In particular, regarding 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 heat insulating material 34 for the door and the first and second door reinforcing plates 40a and 40b made of metal. Since the reinforcing effect by the first and second door reinforcing plates 40a and 40b and the reinforcing effect by the foam foam heat insulating material 34 are combined, the door strength can be greatly improved, and high rigidity is required. It can also be used with large refrigerators.

  In this embodiment, since the door switch 37 is provided on the upper part of the double door 7, the wiring routed from the refrigerator body 1 to the Hall IC 39 through the door hinge 12 can be shortened. Cost reduction can be achieved by shortening the wiring. 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 concern about water intrusion into the Hall IC 39 as in the case where it is provided at the lower part of the door. Can be high.

  The door switch 37 may be provided below the double door 7. In this case, a hall IC 39 is provided below the second door 72 provided with the display unit 36 to take sufficient measures to prevent water intrusion.

  Thereby, the wiring which connects Hall IC39 and the display part 36 can be shortened, the cost reduction by shortening of wiring can be aimed at, and workability | operativity can be improved simultaneously.

  As described above, this refrigerator can detect door opening / closing with high accuracy without deteriorating aesthetics or incurring costs.

  Moreover, the refrigerator of this Embodiment also has the following effects.

  That is, in this refrigerator, the heat insulating property of the rotary partition 35 provided in the double doors 7 is high, and the collision sound and vibration during rotation of the rotary partition can be reduced.

  More specifically, the rotary partition 35 pivotally supported on the first door 71 of the double door 7 of the refrigerator is provided with a foam heat insulating material for the rotary partition between the storage chamber side outer member 47 and the outside air side outer member 48. Filled and configured. Therefore, the heat insulating property is remarkably higher than that using a conventional polystyrene foam as a heat insulating material. Therefore, it is possible to strongly and effectively suppress the outside air heat that tends to enter the refrigerator compartment 14 via the rotating partition 35.

  Further, since the rotating partition 35 has the buffer sheet 54 mounted on the side surface of the storage chamber of the storage chamber side outer member 47, the rotating partition 35 rotates to the inner surface side of the first door 71 and moves into the first door 71. Even if it collides with the vertical wall surface of the frame 31a, the collision sound and vibration can be suppressed. Therefore, even if the rotary partition 35 rotates in conjunction with the opening of the first door 71, it is possible to provide a refrigerator that hardly feels a collision sound or vibration.

  Further, since the buffer sheet 54 is provided along the longitudinal direction of the storage chamber side surface of the storage chamber side outer member 47, the buffer hole 54 and the air vent hole 53 are concealed so as to cover the storage chamber side surface of the storage chamber side outer member 47. Can be made clean.

  Further, the rotary partition 35 is elongated in the vertical direction, and when the foaming heat insulating material for the rotary partition is filled, the storage chamber side outer member 47 and the outside air side outer member 48 are fitted by the foaming pressure. Foam insulation for rotating partitions is likely to leak from the part.

  However, in this rotary partition 35, 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, and the other side of the concave groove 51 between the inner wall 47a and the outer wall 47b of the double wall Since the opening edge portion 48a of the outside air side outer member 48 is fitted, the creeping distance from the inside of the rotating partition 35 to the outside, in other words, the distance through which the foaming heat insulating material 50 for the rotating partition leaks is extremely large. It will be long. That is, the distance through which the foaming heat insulating material 50 for the rotary partition leaks is the distance of the contact portion between the outer surface of the inner wall 47a of the storage chamber side outer member 47 and the inner surface of the opening edge 48a of the storage chamber side outer member 47. The distance of the contact portion between the outer surface of the opening edge 48a of the side outer member 47 and the inner surface of the outer wall 47b of the storage chamber side outer member 47 is a long distance. Even if either the storage chamber side outer member 47 or the outer air side outer member 48 is bent or deformed, the concave groove 51 between the inner wall 47a and the outer wall 47b and the opening edge portion 48a of the outer air side outer member 48 Due to the fitting, the deformation is corrected and there is no gap.

  Accordingly, it is possible to reliably prevent the foaming heat insulating material 50 for the rotary partition from leaking out from the fitting fitting portion between the storage chamber side outer member 47 and the storage chamber side outer member 47. Thereby, the quality of the refrigerator can be greatly improved. That is, the fitting fitting part of the storage chamber side outer member 47 and the storage chamber side outer member 47 of the rotating partition 35 is a portion that is easy for the user to touch. However, according to the configuration of the rotating partition 35, the foamed heat insulating material can be prevented from sticking out. As a result, the distrust to the user can be wiped out, greatly contributing to improving the quality of the refrigerator. That is, it is possible to prevent a deterioration in quality caused by filling with the foamed heat insulating material 50 for the rotating partition, and to improve the heat insulating property of the rotating partition 35 and to have a high quality refrigerator.

  In addition, the rotary partition 35 is pivotally connected to the first door 71 by a hinge member 46 at the upper and lower portions thereof, and a heat insulating material 49 made of foamed polystyrene is provided on the installation portion of the hinge member 46. It is possible to prevent the foamed heat insulating material from entering the shaft support portion of the hinge member 46. Thereby, the rotation operation of the rotary partition 35 can be stabilized.

  In particular, in this embodiment, the cylindrical member 60 covers a portion from the shaft support portion 46a of the hinge member 46 to the dew condensation prevention heater 59, and therefore passes through a slight gap on the outer periphery of the heat insulating material 49 made of foamed polystyrene. Even if the foaming heat insulating material 50 for the rotary partition enters the hinge member 46 side portion, the tubular member 60 can reliably prevent the shaft support portion 46a from entering. Therefore, the rotation operation of the rotary partition 35 can be ensured.

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

  Further, in the area filled with the foam insulation 50 for the rotary partition, the rotary partition 35 is attached to the inner surface of the outside air side outer member 48 and the surface thereof is covered with the tape 61. It is possible to prevent the partition foam heat insulating material 50 from entering between the outside-air-side outer member 48 and the rotating partition magnet 58, and to prevent a decrease in magnetic force due to the entry of the foam heat insulating material. Thus, when the door is closed, the rotary partition 35 is reliably attracted to the magnets of the gaskets 71a and 71b provided on the inner surfaces of the first door 71 and the second door 72. As a result, the refrigerating chamber 14 can be reliably sealed by the rotating partition 35, and the intrusion of outside air heat can be more effectively suppressed to improve the energy saving performance.

  Further, since the rotary partition 35 has a configuration in which a metal rotary partition reinforcing plate 55 is provided on the inner surface of the storage chamber side outer member 47, deformation caused by thermal contraction of the foam heat insulating material 50 for the rotary partition can be prevented. The energy-saving property can be further improved by making the sealing property at the time of closing the door higher.

  Furthermore, the rotating partition 35 has a foamed heat insulating material 50 for the rotating partition interposed between the inner surface of the storage chamber side outer member 47 and the metallic rotating partition reinforcing plate 55, so that the rotating partition body made of metal. A thin heat insulating layer of the foam heat insulating material 50 for the rotary partition is formed between the reinforcing plate 55 and the inner surface of the storage chamber side outer member 47.

  As a result, it is possible to prevent the low temperature in the refrigerating chamber from being directly transmitted to the metal rotating partition reinforcing plate 55 via the storage chamber side outer member 47 and dissipated to the outside air, and the heat of the dew condensation prevention heater 59 can be prevented. It is possible to prevent the heat of the rotating partition reinforcing plate 55 that is slightly affected by the influence from entering the refrigerator compartment 14 via the storage compartment side outer member 47. Therefore, the heat insulation effect by the rotary partition 35 becomes strong by both the above-mentioned actions, and the energy saving performance can be further improved accordingly.

  The rotating partition reinforcing plate 55 includes a plurality of holes 57 in the longitudinal direction including a hole facing the foaming heat insulating material for rotating partition provided in the storage chamber side outer member 47 and a hole facing the air vent hole 53. Therefore, it is possible to reduce the weight of the rotating partition reinforcing plate 55 while enabling the injection of the foaming heat insulating material 50 for the rotating partition injected from the injection hole 52 provided in the storage chamber side outer member 47. As a result, the rotating partition 35 itself can be reduced in weight, the rotating operation of the rotating partition 35 can be stabilized, and the inertial force of the rotating partition 35 generated during the rotation can be reduced, so that the collision sound and the like can be reduced.

  Moreover, since the said rotation partition 35 is made into square shape, it comes to exhibit a favorable heat insulation effect over the right-and-left whole region, and can improve a heat insulation effect.

  In addition, as shown in FIGS. 17A and 17B, the flexible auxiliary seal member 63 is provided between the rotary free end side of the rotary partition 35 and the inner vertical wall of the second door 72, thereby rotating. A gap T generated by the rotation trajectory of the partition 35 can be closed by the auxiliary seal member 63. Thereby, it can prevent more reliably that external air penetrate | invades from the clearance gap between a rotating partition free end and a door vertical wall inner surface, and can improve energy-saving property further.

  In the present embodiment, the magnet 58 is embedded in the rotary partition, but this is because the storage chamber side outer member 47 and the outside air side outer member 48 are formed of a resin having low thermal conductivity. This is because of the assumption. That is, the gasket provided with the door-side magnet is securely adsorbed to the rotating partition, and the magnet 58 is embedded inside the rotating partition to ensure sealing performance, but not limited thereto, A magnetized iron plate may be used as the storage chamber side outer member without using the magnet 58 inside the rotating partition.

  In this case, the magnet arrangement space part inside the rotating partition can be filled with the foam heat insulating material, and the heat insulation can be improved and the strength of the rotating partition can be increased. Further, in this case, by using an iron plate for the storage chamber side outer member, the reinforcing plate 55 provided on the storage chamber side outer member 47 can be eliminated, and an optimum balance of heat insulation, strength and cost can be achieved.

  Further, in the present embodiment, the heat insulating material 49 made of foamed polystyrene is provided in the vicinity of the hinge members at the upper and lower ends of the rotary partition 35. However, the present invention is not limited to this. A seal member formed separately in the vicinity of the hinge members at the upper and lower ends of the body 35 or a seal member formed integrally with a rib or the like on the cap at the upper and lower ends is arranged, and the hinges at the upper and lower ends of the rotary partition 35 The specification may be such that urethane foam is filled in almost the entire area inside the rotary partition 35 including the vicinity of the member.

  In this case, it is possible to obtain effects 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 unnecessary use of the heat insulating material 49 made of polystyrene foam.

  As mentioned above, although the refrigerator concerning this invention was demonstrated using the said embodiment, this invention 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 invention is shown not by the above description but by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

  INDUSTRIAL APPLICABILITY The present invention can provide an inexpensive refrigerator with high door opening / closing detection accuracy without impairing aesthetic appearance, and can be applied to various types and sizes of refrigerators for 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 12 Door hinge part 14 Refrigeration room 15 Switching room 16 Ice making room 17 Vegetable room 18 Freezing room 19 Cooling chamber 20 Cooler 21 Cooling fan 22 Defrosting means 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 peripheral frame 32a First door outer peripheral frame 32b Second door outer peripheral frame 33 Transparent exterior plate 34 Foam insulation for door 35 Rotating partition 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 Claw 57 Hole 58 Rotary partition magnet 59 Condensation prevention heater 60 Cylindrical member 61 Tape 62 Cap 63 Auxiliary seal member 71 First door 72 Second door 71a, 72a Gasket

Claims (7)

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 switch that detects opening and closing of the double door, the door switch is constituted by a reed switch, The refrigerator in which the magnet and the Hall IC of the reed switch are arranged to face the door end surfaces of the first and second doors of the double doors facing each other. The refrigerator according to claim 1, wherein the door switch is provided at an upper portion of the double door. The refrigerator according to claim 1, wherein the door switch is provided at a lower portion of the double door and the display unit is provided on the door on the side where the Hall IC of the door switch is provided. A rotary partition with a heater for AC power supply that closes the gap between the door end faces is provided on one door of the double doors, and a door switch magnet is provided on the door on which the rotary partition is provided, and the rotary partition The refrigerator of any one of Claims 1-3 which provided Hall IC in the door of the side which is not equipped with. The refrigerator of any one of Claims 1-4 which provided the display part in the door of the side which is not equipped with the rotation partition of the double doors, and provided Hall IC of the door switch in the door provided with this display part. A metal reinforcing plate is provided on each door end face of the double doors, and an opening is provided in the door reinforcing plate on the side where the magnet of the door switch is arranged, and the magnet is arranged in the opening. The refrigerator of any one of Claims 1-5. The refrigerator according to any one of claims 1 to 6, wherein the double door is configured by filling a foam heat insulating material, and the magnet and the Hall IC of the door switch are covered with a switch protective cover.

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