JP6980862B2 - refrigerator - Google Patents

Description

The embodiment relates to a refrigerator having a front plate on the front surface of the door.

In recent years, refrigerators equipped with a colored glass plate or a transparent plastic plate on the front of the door for decoration have appeared. In such a refrigerator, a wireless communication unit that performs wireless communication of information is arranged on the back side of a front plate or the like.

In such a refrigerator, there is a problem that the wireless communication unit may be adversely affected by the dew condensation prevention heater for preventing dew condensation.

Japanese Unexamined Patent Publication No. 2004-198058

The present invention has been made in view of the above-mentioned problems of the prior art, and provides a refrigerator provided with a wireless communication unit installed on the back side of a front plate or the like, in which the wireless communication unit can be reliably operated. The purpose.

The refrigerator of the embodiment is between the double door left and right door bodies attached to the front opening of the refrigerator body, the non-conductive front plate installed on the front surface of the door body, and the left and right door bodies. A rotary partition that maintains a sealed state, a dew condensation prevention heater provided on the rotary partition, a first lead wire that supplies power to the dew condensation prevention heater, and the back side of the front plate of the door body, or the said. A wireless communication unit installed in a storage room of the refrigerator body and performing wireless communication of information, and a second lead wire for supplying power to the wireless communication unit are provided, and the first lead wire and the said wire are provided in the door body. It is characterized in that it is arranged at a position where it does not overlap with the second lead wire, and the wireless communication unit is arranged on the rotation shaft side of the door body.

Front view of the refrigerator of the embodiment. The perspective view of the refrigerator door open state of embodiment. An enlarged perspective view of a refrigerator compartment portion of the refrigerator of the embodiment. The perspective view from the back surface of the right front plate in the refrigerator of embodiment.

Hereinafter, embodiments will be described in detail with reference to the figures.

The refrigerator 1 of the embodiment shown in FIG. 1 includes a cabinet 11 which is a refrigerator main body. As shown in FIG. 2, the cabinet 11 is composed of a refrigerating chamber 12, a vegetable compartment 13, a switching chamber 14 capable of switching the set temperature in the refrigerator, and a freezing chamber 15 from the upper stage. An ice making chamber 16 is provided on the left side of the switching chamber 14.

As shown in FIGS. 2 and 3, in order to cover the front opening of the refrigerating chamber 12, a pair of left and right doors 21 and 22 open and close at the left end and the upper and lower sides of the right end in a double-door manner with hinges 31 and 32, respectively. It is installed so that it can be used. Further, the vegetable room 13, the switching room 14, the freezing room 15, and the ice making room 16 are provided with drawer-type doors 23, 24, 25, and 26, respectively. Although not shown on the back surface of the vegetable compartment 13, a refrigerating evaporator for cooling the refrigerating chamber 12 and the vegetable compartment 13 is arranged, and the same applies to the back surfaces of the switching chamber 14 and the freezing chamber 15. Although not shown, a refrigerating evaporator for cooling the switching chamber 14, the freezing chamber 15, and the ice making chamber 16 is arranged. Further, on the back surface of the vegetable compartment 13, a control unit including a microcomputer for controlling the refrigerator 1 is also arranged.

The pair of left and right doors 21 and 22 are double doors, and the door on the left side (hereinafter referred to as the left door) 21 has a hinge portion (hereinafter referred to as the left hinge portion) 31 on the left side and the door on the right side. The 22 (hereinafter referred to as a right door) 22 has a hinge portion (hereinafter referred to as a right hinge portion) 32 on the right side portion. In FIG. 1, the left and right hinge portions 31 and 32 are covered with caps 33 and 34, respectively.

As shown in FIG. 3, the left hinge portion 31 of the left door 21 is composed of a hinge shaft and a hinge receiving portion, and shaft holes are opened on the upper surface and the lower surface of the left end portion of the left door 21, respectively. A pair of upper and lower plate-shaped hinge receiving portions are provided at the left front end portion of the ceiling surface of the cabinet 11 and the left end portion of the lower end of the refrigerating chamber 12, respectively, and the hinge shafts protrude from each of the upper and lower pair of hinge receiving portions. Then, the shaft hole of the left door 21 is engaged with the pair of upper and lower hinge shafts, and the left door 21 is rotatable. Further, the hinge shaft engaged with the shaft hole at the upper part of the left end portion of the left door 21 has a cylindrical shape, and the lead wire 41 described later is inserted into the shaft hole and the hinge shaft to receive the hinge. It is pulled out from the opening 31a at the top of the portion. The right hinge portion 32 of the right door 22 has the same configuration, and the lead wire 42 and the ground wire 43 are drawn out from the opening portion 32a. The lead wires 41 and 42 are connected to the lead wires 44 and 46 on the cabinet 11 side at the left and right hinge portions 31 and 32, respectively. The lead wires 44 and 46 on the cabinet 11 side crawl inside the cabinet 11 and are connected to the control unit. On the other hand, the ground wire 43 is connected to the ground wire 47 of the cabinet 11, the end of the ground wire 47 is connected to the conductor portion of the cabinet 11, and the floating charge of the operation input portion 51 described later is grounded to the cabinet 11 side.

For both the left door 21 and the right door 22, colored transparent glass front plates 21B and 22B are attached to the openings of the inner plates 21A and 22A that open to the front, and urethane-like urethane is attached to the inside of the inner plates 21A and 22A. The structure is filled with a non-conductive heat insulating material. The degree of coloring of the front plates 21B and 22B is such that the filling material such as the heat insulating material on the back side of the front plates 21B and 22B cannot be seen from the outside in a state of receiving external light. Moreover, light is transmitted from the front side when the operation button name, cooling function name, cooling intensity, etc., which will be described later, are transmitted through the LED indicator lamp, and the 7-segment LED display device, which transmits and displays changing numerical values such as temperature values, are lit. It is also the darkness that can be seen.

At the right end of the left door 21, that is, a portion that is close to and faces the left end of the right door 22 in the closed state, a rotary partition body 61 for maintaining a sealed state with the right door 22 is provided in the closed state. It is provided. A dew condensation prevention heater 62 for preventing dew condensation is built in the rotary partition body 61. The lead wire 41 for supplying power to the dew condensation prevention heater 62 is pulled out from the opening 31a of the left hinge portion 31 through the back side of the front plate 21A of the left door 21, and is led to the main body side lead wire 44 installed on the cabinet 11 side. It is connected by the connector 45.

Further, a conductor sheet 63 is attached to a part or all of the back surface side of the front plate 21B of the left door 21. This is because the front plate 21B is made of glass and is therefore non-conductive, so that the magnet sheet cannot be attracted from the front side. By attaching the conductor sheet 63, the magnet sheet can be attracted from the front side of the front plate 22B. This makes it possible to attach a memo or the like to the front surface of the front plate 21B.

The left door 21 has a conductive heat insulating material inside the inner plate 21A (a heat insulating material in which the vacuum heat insulating material is coated with a conductive metal film such as aluminum, and at least on the surface thereof so that the magnet can be attracted. Can be substituted for the conductor sheet 63 by filling the structure with a conductive heat insulating material) and covering the front surface with the front plate 21B.

On the back side of the front plate 22B of the right door 22, a capacitance type operation input unit 51 for operating the refrigerator by touch operation from the front of the front plate 22B is attached. The operation input unit 51 detects a touch to the infrared light receiving unit 52, the home button 53, and the home button 53 for detecting the environmental state around the refrigerator, and transmits the operation button name, the cooling function name, the cooling intensity, and the like. An LED indicator lamp 54 for displaying and a 7-segment LED display device 55 for transmitting and displaying a changing numerical value such as a temperature value are provided. Then, for supplying power to the infrared light receiving unit 52, the LED indicator lamp 54, the 7-segment LED display device 55, etc. of the operation input unit 51, and for extracting the touch position detection signal, the light receiving intensity signal of the infrared light receiving unit 52, and the like. The lead wire 42 and the ground wire 43 are connected to the operation input unit 51. The lead wire 42 and the ground wire 43 are connected to the lead wire 46 and the ground wire 47 on the cabinet 11 side by a connector 48 at the right hinge portion 32.

Further, a wireless communication unit 70 for wirelessly transmitting and receiving information is installed at an appropriate position of the right door 22, in the lower right portion of the right door 22 in this embodiment, at a position on the back side of the front plate 22B. There is. The lead wire 71 of the wireless communication unit 70 is pulled out together with the lead wire 42 of the control operation unit 51.

In this way, the lead wire 41 to the dew condensation prevention heater 62 and the lead wire 42 to the operation input unit 51 are passed through the left and right separate hinge portions 31 and 32, so that the dew condensation prevention heater 62 is passed through the lead wire 41. It is possible to prevent the electromagnetic wave generated when energization from having an adverse effect of placing noise on the lead wire 42 connected to the operation input unit 51, and it is possible to improve the reliability of the control operation.

Since the light distribution characteristic of the LED indicator lamp 54 is strongly emitted in the immediately preceding direction, the transmitted light is strong in the central portion and weak in the surroundings, resulting in uneven brightness. Therefore, as shown in FIG. 4, for the purpose of uniformly equalizing the intensity of the transmitted light, the corresponding portion 54-1 of the front plate 22B corresponding to the front of the installation position of the LED indicator lamp 54 is the peripheral portion 54-. The degree of coloring is stronger (darker) than 2.

On the other hand, in the 7-segment LED display device 55, the transmitted light is weakened because the amount of light emitted from the LEDs in each segment is small. Therefore, in order to avoid this and make the display look brighter from the front side, the degree of coloring of the corresponding portion 55-1 of the front plate 22B corresponding to the front of the installation position of the 7-segment LED display device 55 is lower than that of the other portions ( (Thin).

Further, the display window 56 for transparently displaying various information and characters on the front plate 22B, such as operation button names such as "refrigerate", "freeze", "ice making", and "quick freeze", and control operation names, is also used. The degree of coloring is lower than that of the portion so that the characters are clearly displayed from the front side of the front plate 22B.

The control unit for cooling control of the refrigerator of the present embodiment is general and is not particularly limited, but for example, a compressor, an operation panel, a dew condensation prevention heater, and an inside of an ice making chamber. An ice making device, a refrigerating room fan, a freezing room fan, and a defrosting heater are connected to and controlled by this control unit.

(Change example)
In the above embodiment, the left door 21 is provided with a dew condensation prevention heater and the right door 22 is provided with an operation input unit, but this combination may be reversed. Further, it is not always necessary to equip both the LED indicator lamp and the 7-segment LED display device, and it is possible to selectively equip them.

In addition, as the simplest door structure, a single door that opens to the left or opens to the right is placed in front of the refrigerator compartment, and the structure of this door is a non-colored transparent door on the front of the heat insulating door body. It is possible that a conductive front plate is attached and a capacitance type operation input unit that accepts operation input by touch operation of the front plate is installed in the door body.

Then, in the case of such a refrigerator, a capacitance type touch operation is performed by drawing out a ground wire for grounding the floating charge of the operation input unit from the operation input unit and connecting it to the conductive member on the refrigerator body side. Will be able to be performed stably.

As another example of modification, the door body consists of two pieces, a left door body and a right door body that open and close in a double-door manner at the hinges at the left and right ends, and one of the left and right door bodies A transparent, non-conductive front plate and a capacitive operation input unit that accepts operation input by touch operation from the front side of the front plate are installed, and the other of the left and right door bodies is colored transparent. It is also possible to install a front plate provided with a conductive portion and not to install an operation input unit on the back surface of the front plate, so that the configuration is simpler than that of the above embodiment. As a result, the magnet sheet can be attracted to the front plate provided with the conductive portion, and the memo can be attached to the front surface of the front plate, which improves convenience.

Further, the wireless communication unit 70 can be installed at an appropriate place in the storage space inside the cabinet 11 instead of inside the door body so that information can be wirelessly communicated through the door body. In that case, a conductive heat insulating material that absorbs communication radio waves is not installed at least at a position facing the wireless communication unit 70 of the door body, and a place that does not interfere with wireless communication through the front plate of the door body. A heat insulating material having conductivity can be installed in the door. Further, for the left and right door bodies 21 and 22 of the double door type, the wireless communication unit 70 can be installed in the door body or the storage room on the side where the operation input unit 51 is not installed, and in that case, at least the door body. Do not install a conductive heat insulating material that absorbs communication radio waves at the position facing the wireless communication unit 70, and install a conductive heat insulating material at a place that does not interfere with wireless communication through the front plate of the door body. Can be configured to.

1 Refrigerator 11 Cabinet 12 Refrigerator room 21 Left door 21A Inner plate 21B Front plate 22 Right door 22A Inner plate 22B Front plate 31 Left hinge part 32 Right hinge part 31a Opening 32a Opening 41, 42 Lead wire 43 Earth wire 51 Operation input Part 52 Infrared light receiving part 54 LED indicator light 557 Segment LED display device 61 Rotating partition 62 Dew condensation prevention heater 70 Wireless communication part

Claims (3)

Double-door left and right door bodies attached to the front opening of the refrigerator body,
The non-conductive front plate installed on the front of the door body,
A rotating partition that maintains the sealed state between the left and right door bodies, and
The dew condensation prevention heater provided on the rotary partition and
The first lead wire that supplies power to the dew condensation prevention heater,
A wireless communication unit installed on the back side of the front plate of the door body or in the storage room of the refrigerator body to perform wireless communication of information.
A second lead wire that supplies power to the wireless communication unit,
An operation input unit installed on the back side of the front plate of the door body and accepting operations from the front side of the front plate.
A third lead wire for supplying power to the operation input unit is provided.
In the door body, the first lead wire, the second lead wire, and the third lead wire are arranged at positions where they do not overlap.
The wireless communication unit is arranged on the rotation shaft side of the door body .
The operation input unit is arranged on the free end side of the door body and above the wireless communication unit.
A refrigerator characterized in that the second lead wire that supplies power to the wireless communication unit is wired along the third lead wire that supplies power to the operation input unit. The refrigerator according to claim 1, wherein the first lead wire, the second lead wire, and the third lead wire are arranged on different door bodies. The first lead wire, the second lead wire, and the third lead wire are characterized in that they are drawn out via their respective rotating portions attached so as to open and close the left and right door main bodies. The refrigerator according to claim 2.

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