JP2019135444A - refrigerator - Google Patents

Abstract

To provide a refrigerator that helps a user see various information and reduces power consumption.SOLUTION: A refrigerator 1 includes: heat insulating door bodies 21, 22 attached to a front opening of a refrigerator body 11; front plates 21B, 22B that is transparent and non-conductive and installed at a front face of the door body; and an electrostatic capacitance type operation input part 51 that is installed on a back side of the front plate in the door body receives an operation input by a touch operation from a front side of the front plate.SELECTED DRAWING: Figure 1

Description

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

  In recent years, refrigerators having a front plate made of a glass plate or a transparent plastic plate colored for decoration on the front surface of the door have appeared. In such a refrigerator, a capacitance type operation input unit for inputting a cooling function selection or setting operation is arranged on the back side of the front plate.

  In such a refrigerator, if the front plate is a conductive member, the electrostatic capacity is absorbed by the conductive member, so that no electrostatic capacity is generated and operation input cannot be performed.

JP 2004-198058 A

  The present invention has been made in view of the above problems of the prior art, and in a refrigerator having a door with an operation input unit installed on the back side of the front plate, a refrigerator capable of reliably performing capacitive operation input. The purpose is to provide.

  The refrigerator of the embodiment is installed on the back side of the front plate in the door body, the door body attached to the front opening of the refrigerator body, the non-conductive front plate installed on the front surface of the door body. A wireless communication unit that performs wireless communication of information, and a conductive member is not disposed at a position facing the wireless communication unit on the back surface of the front plate, and the conductive member is not disposed. A conductive member is disposed at a position different from the position, and the wireless communication unit is disposed at a position near one of the left and right side walls of the refrigerator body, and the conductive member is disposed on the refrigerator body. It is arrange | positioned in the position close | similar to the other side wall.

The front view of the refrigerator of embodiment. The perspective view of the door open state of the refrigerator of embodiment. The expansion perspective view of the refrigerator compartment part of the refrigerator of embodiment. The perspective view from the back surface of the right front board in the refrigerator of embodiment.

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

  The refrigerator 1 of the embodiment shown in FIG. 1 includes a cabinet 11 that is a refrigerator body. As shown in FIG. 2, the cabinet 11 includes a refrigeration room 12, a vegetable room 13, a switching room 14 that can switch the set temperature in the cabinet, and a freezing room 15 from the top. 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 refrigerator compartment 12, a pair of left and right doors 21 and 22 are opened and closed with hinged portions 31 and 32 at the left end and the upper and lower ends of the right end respectively. It is attached to do. The vegetable compartment 13, the switching compartment 14, the freezer compartment 15, and the ice making compartment 16 are provided with drawer-type doors 23, 24, 25, and 26, respectively. Although not shown in the drawing, the refrigeration evaporator for cooling the refrigerator compartment 12 and the vegetable compartment 13 is arranged on the back of the vegetable compartment 13. Although not shown, a freezing evaporator for cooling the switching chamber 14, the freezing chamber 15, and the ice making chamber 16 is arranged. Furthermore, on the back side of the vegetable compartment 13, a control unit comprising 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 21 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. 22 (hereinafter referred to as a right door) has a hinge portion (hereinafter referred to as a right hinge portion) 32 on the right side. In FIG. 1, the left and right hinge parts 31, 32 are covered with caps 33, 34, respectively.

  As shown in FIG. 3, the left hinge portion 31 of the left door 21 includes a hinge shaft and a hinge receiving portion, and shaft holes are respectively opened on the upper surface and the lower surface of the left end portion of the left door 21. A pair of upper and lower plate-like 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 refrigerator compartment 12, respectively, and hinge shafts protrude from the pair of upper and lower hinge receiving portions, respectively. The shaft hole of the left door 21 is engaged with the pair of upper and lower hinge shafts so that 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 a lead wire 41 to be described later is inserted into the shaft hole and the hinge shaft, and the hinge receiver It is pulled out from the opening part 31a in the upper part of the part. 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 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. These lead wires 44 and 46 on the cabinet 11 side are connected to the control unit with the inside of the cabinet 11 facing up. On the other hand, the ground wire 43 is connected to the ground wire 47 of the cabinet 11, and an end portion of the ground wire 47 is connected to a conductor portion of the cabinet 11 to ground floating charges of the operation input unit 51 described later to the cabinet 11 side.

  Both the left door 21 and the right door 22 have colored transparent glass front plates 21B and 22B attached to the openings of the inner plates 21A and 22A that open to the front surface, and urethane inside the inner plates 21A and 22A. It is a structure filled with a non-conductive heat insulating material. The degree of coloring of the front plates 21B and 22B is such that the filler such as a 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 in the lighting state of the LED display lamp for transparently displaying the operation button name, the cooling function name, the cooling intensity, etc., which will be described later, and the 7-segment LED display device for transparently displaying the numerical value changing such as the temperature value. It is also the darkness that can be seen.

  On the right end of the left door 21, that is, in the portion facing and close to the left end of the right door 22 in the closed state, a rotating partition 61 for maintaining a sealed state with the right door 22 in the door closed state. Is provided. Inside the rotary partition 61, a dew condensation prevention heater 62 for preventing dew condensation is incorporated. The lead wire 41 for feeding power to the dew condensation prevention heater 62 is drawn upward 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 connected to the main body side lead wire 44 installed on the cabinet 11 side. The connector 45 is connected.

  A conductor sheet 63 is attached to a part or the whole of the rear surface side of the front plate 21B of the left door 21. This is because the magnet plate cannot be attracted from the front side because the front plate 21B is made of glass and is therefore non-conductive. By attaching the conductor sheet 63, the magnet sheet can be attracted from the front side of the front plate 22B. As a result, it becomes possible to attach a note or the like to the front plate 21B.

  In order to attract the magnet, the left door 21 is at least on the surface with a conductive heat insulating material (vacuum heat insulating material covered with a conductive metal film such as aluminum in the inner plate 21A. Can be substituted for the conductor sheet 63 by filling the front surface with a 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 a touch operation from the front of the front plate 22B is attached. The operation input unit 51 detects an infrared light receiving unit 52 for detecting an environmental condition around the refrigerator, a home button 53, a touch on the home button 53, and transmits an operation button name, a cooling function name, a cooling intensity, and the like. An LED indicator lamp 54 for displaying and a 7-segment LED display device 55 for transparently displaying changing numerical values such as temperature values are provided. Then, power is supplied to the infrared light receiving unit 52, the LED indicator lamp 54, the 7-segment LED display device 55 and the like of the operation input unit 51, and the touch position detection signal and the light reception intensity signal of the infrared light receiving unit 52 are taken out. A lead wire 42 and a ground wire 43 are connected to the operation input unit 51. These lead wire 42 and ground wire 43 are connected to the lead wire 46 on the cabinet 11 side, ground wire 47 and connector 48 at the right hinge portion 32.

  In addition, a wireless communication unit 70 for performing wireless transmission and reception of information is installed at an appropriate position of the right door 22, in the lower right part of the right door 22 in this embodiment, at a position behind the front plate 22 </ b> B. Yes. The lead wire 71 of the wireless communication unit 70 is drawn 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 hinge portions 31 and 32, so that the dew condensation prevention heater 62 is passed through the lead wire 41. Electromagnetic waves generated when energized can be prevented from having an adverse effect of placing noise on the lead wire 42 connected to the operation input unit 51, and the reliability of the control operation can be increased.

  Since the light distribution characteristic of the LED indicator lamp 54 is strongly emitted immediately before, the light of the transmissive display is strong in the central portion and weak in the surroundings, and the brightness is nonuniform. Therefore, as shown in FIG. 4, for the purpose of uniformly leveling the intensity of 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 a peripheral portion 54-. The coloring degree is stronger (darker) than 2.

  On the other hand, in the 7-segment LED display device 55, the amount of light emitted from the LED of each segment is small, so that the transmitted light becomes weak. Therefore, in order to avoid this and make the display appear bright from the front side, the coloring degree 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 the other portions ( Thin).

  Further, various information and characters on the front plate 22B, for example, operation button names such as “refrigeration”, “freezing”, “ice making”, “freezing”, and the display window 56 for transparently displaying the control operation name are also included. The degree of coloring is lower than that of the portion so that characters are clearly displayed from the front side of the front plate 22B.

  In addition, the control part for cooling control of the refrigerator of this Embodiment is a general thing, and it is not specifically limited, For example, a compressor, an operation panel, a dew condensation prevention heater, the inside of an ice making room | chamber interior, etc. An ice making device, a refrigerator compartment fan, a freezer compartment fan, and a defrost heater are connected to and controlled by this control unit.

(Example of change)
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. In addition, the LED indicator lamp and the 7-segment LED display device do not necessarily have to be equipped together, and can be selectively equipped.

  In addition, as the simplest door structure, a left-opening or right-opening single door is arranged in front of the refrigerator compartment. A conductive front plate is attached, and a capacitance type operation input unit that receives an operation input by a touch operation on the front plate can be installed in the door body.

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

  As another modification, the door body is composed of two pieces, a left door body and a right door body that are opened and closed in a hinged manner at the hinge portions at the left and right ends. A transparent and non-conductive front plate and a capacitance type 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 and transparent In addition, a front plate provided with a conductive portion may be installed, and an operation input unit may not be installed on the back surface of the front plate, and a simpler configuration than that of the above-described embodiment may be used. Thereby, the magnet sheet can be attracted to the front plate provided with the conductive portion, and the memo can be attached to the front plate of the front plate, which improves convenience.

  Furthermore, the wireless communication unit 70 can be installed not in the door body but in a suitable place in the storage space in the cabinet 11 so that information can be wirelessly communicated through the door body. In that case, a location that does not obstruct wireless communication through the front plate of the door body without installing a conductive heat insulating material that absorbs communication radio waves at least at a position facing the wireless communication unit 70 of the door body. It can be set as the structure which installs the heat insulating material which has electroconductivity. Further, with respect to 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. No conductive heat-insulating material that absorbs communication radio waves is installed at a position facing the wireless communication unit 70, and conductive heat-insulating material is installed at a location that does not hinder wireless communication through the front plate of the door body. Can be configured.

DESCRIPTION OF SYMBOLS 1 Refrigerator 11 Cabinet 12 Refrigerating 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 part 32a Opening part 41, 42 Lead wire 43 Ground wire 51 Operation input Unit 52 infrared receiving unit 54 LED indicator 55 7 segment LED display 61 rotating partition 62 dew condensation prevention heater 70 wireless communication unit

Claims (3)

A door body attached to the front opening of the refrigerator body;
A non-conductive front plate installed on the front surface of the door body;
A wireless communication unit that is installed on the back side of the front plate in the door body and performs wireless communication of information;
No conductive member is disposed at a position facing the wireless communication unit on the back surface of the front plate,
The conductive member is disposed at a position different from the position where the conductive member is not disposed,
The wireless communication unit is arranged at a position close to one of the left and right side walls of the refrigerator body,
The said electroconductive member is arrange | positioned in the position near the other side wall of the said refrigerator main body, The refrigerator characterized by the above-mentioned. A plurality of the door bodies are provided,
The refrigerator according to claim 1, wherein the wireless communication unit and the conductive member are arranged in different door bodies.   The refrigerator according to claim 1, wherein the conductive member is a metal.