Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Mitsuyuki Furubayashi

Shigeru Shirai

Kazushige Nakamura

Yasuhiro Umekage

Koji Oka

Keiko Yasui

Tomohide Matsumoto

Masahiro Kawai

Kenji Terai

Takemi Oketa

Mikio Tahara

Norihiko Fujiwara

Kuniyuki Nakanishi

Yuji Ozeki

Shigeharu Nakamoto

Kouji Nakai

A heat exchanger comprises a substantially pillar sheathed heater, a substantially cylindrical case, and a spiral spring. The sheathed heater is accommodated in the case. The spring is provided so as to be wound around an outer peripheral surface of the sheathed heater. Thus, a spiral flow path is formed among an outer peripheral surface of the sheathed heater, an inner peripheral surface of the case, and the spring. The spring functions as a flow velocity conversion mechanism, a turbulent flow generation mechanism, a flow direction conversion mechanism, and an impurity removal mechanism. A water inlet and a water outlet are respectively arranged at positions eccentric from a central axis of the case on a side surface of the case.

Heat exchanger

Heat exchanger and washing apparatus comprising the same

Linear-type sheathed heaters are arranged substantially in parallel with each other in a case body. Regions near the ends of the outer peripheral surface of each of the sheathed heaters are held by elastic holding members so as to move in the axial direction. A cylindrical space is formed between the outer peripheral surface of each of the sheathed heater and the case body. A space is provided that communicates the cylindrical spaces.

Heating device and sanitary washing device using the same

A washing water inlet for receiving washing water is provided on an upper surface at one end of a case main body in a fluid heating device, and a washing water outlet for feeding heated washing water to a pump is provided on an upper surface at the other end of the case main body. A linear sheathed heater is arranged so as to penetrate the case main body. A spring is spirally wound around an outer peripheral surface of the sheathed heater. An outer peripheral surface of the sheathed heater, the spring, and an inner peripheral surface of the case main body form a flow path. The flow path is formed in a spiral shape with the length of the case main body used as its axis.

Fluid heating device and cleaning device using the same

Growing community of inventors

Yamatokoriyama, Japan

Mitsuyuki Furubayashi