Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Polymatech Japan Co., Ltd.

Tsuyoki Hirai

Kiyoshi Mori

Kei Nambu

Kazutaka Uekado

Hideji Kawarazaki

Tomoaki Kitano

Toshiaki Hirano

Toyoshi Kamisako

Hisakazu Sakai

Akira Naito

Provided is a refrigerator that includes a storage chamber capable of storing a preserved product, power supply unit (), oscillation circuit (), oscillation electrode () and counter electrode (), matching unit () that matches impedance, controller (), and a shield. Power supply unit () includes a first power supply part that rectifies an alternating current from a commercial alternating-current power supply and converts the alternating current into a direct current, a first ground part that serves as a reference potential of the first power supply part, a second power supply part and a third power supply part that each step down an output voltage of the first power supply part and output the stepped-down output voltage, a second ground part that serves as a reference potential of the second power supply part, and a third ground part that serves as a reference potential of the third power supply part. Oscillation circuit () is supplied with power from the second power supply part, and controller () is supplied with power from the third power supply part.

Refrigerator

The present invention provides a highly reliable and safe heating device that can uniformly heat an object to be heated and provides a refrigerator having a storage space in which frozen products as storage products can be easily thawed to a high-quality state. A heating device of the present invention includes an oscillation electrode disposed on one hand of the heating space and having an electrode surface on which an electric field concentration region is formed, a counter electrode disposed on the other hand of the heating space and having an electrode surface that faces the electrode surface of the oscillation electrode, and a high-frequency electric field forming unit for forming a high-frequency electric field applied to between the oscillation electrode and the counter electrode.

Heating device and refrigerator equipped with heating device

Provided is a refrigerator that includes the following: a storage chamber having a space to store a preserved product; an oscillator that forms high frequency power; and oscillation electrode () and counter electrode () disposed facing each other and connected to the oscillator, oscillation electrode () and counter electrode () receiving the high frequency power from the oscillator to generate an electric field in the storage chamber. Oscillation electrode () and counter electrode () are provided at interval H that is shorter than a long side dimension of oscillation electrode ().

Refrigerator comprising a dielectric heating mechanism

A refrigerator includes a cooling/heating chamber capable of cooling and heating foods. The cooling/heating chamber is divided into a heating zone that is a space where foods to be heated are placed, and a non-heating zone that is a space continuous with the heating zone where foods not to be heated are placed. The refrigerator further includes an oscillation electrode and a counter electrode that are arranged so as to face each other with the heating zone in between, and an oscillating unit that applies an AC voltage to between the oscillation electrode and the counter electrode.

A refrigerator according to the present disclosure includes at least one storage chamber and uses an electromagnetic wave to heat a stored object inside the storage chamber. A first electromagnetic wave shield is provided on a door of the storage chamber, and a second electromagnetic wave shield is provided on a housing part of the refrigerator that is in contact with the door while the door is closed. This makes it possible to provide a structure capable of exhibiting a function as an electromagnetic wave shield even for a refrigerator door in which wiring to a grounding part is difficult.

A heat-insulating housing () includes: a wall body; and an open-cell resin body () of thermosetting resin with which a heat-insulating space formed by the wall body is filled by integral foaming, the open-cell resin body including: a plurality of cells (); a cell film portion (); a cell skeleton portion (); a first through-hole () formed so as to extend through the cell film portion; and a second through-hole () formed so as to extend through the cell skeleton portion, wherein the plurality of cells communicate with one another through the first through-hole and the second through-hole.

Heat-insulating wall, and heat-insulating housing and method for producing the same

A vacuum heat insulator includes inner box (), external plate (), and gas barrier container (). Gas barrier container () includes core material (), first member () that has a box shape including a first opening portion, and second member () that tightly closes the first opening portion. Core material () is disposed inside first member (). Inner box () includes a second opening portion. Gas barrier container () is disposed inside inner box (). The second opening portion is closed by external plate (). First member () has such a shape that an outer face of first member () fits with an inner face of inner box ().

Vacuum heat insulator, heat insulation device provided with same, and method for manufacturing vacuum heat insulator

A vacuum insulation body includes an outer box (), an inner box (), open-cell urethane foam () in the insulation space () between the outer box () and the inner box (); and a vacuum outlet () in one of the outer box () and the inner box (). The urethane foam () includes a through passage () leading to the vacuum outlet (). The vacuum outlet () is sealed after the insulation space () filled with the urethane foam () is vacuum-evacuated.

Vacuum heat insulation body

To provide a novel damper for a compressor that includes a vibration isolation system that suits the low rotation speed of a compressor of a cooling apparatus. A plurality of support projections that support annular mounting portions of a compressor at multiple points are provided at an upper end portion of a cylindrical support. The plurality of support projections elastically support the compressor so that the compressor has a high center of gravity and allow the compressor to be laterally displaced by vibration. Moreover, a bellows portion that is elastically deformed while being in contact with the annular mounting portion that becomes laterally displaced is provided. The elastic deformation of the bellows portion buffers the lateral displacement of the compressor and stirs a viscous fluid that fills inside thereof to buffer the vibration.

Growing community of inventors

Shiga, Japan

Tsuyoki Hirai