Fluid pipe device

Patent metadata

Field	Value
Publication number	US-10190715-B2
Application number	US-201515510121-A
Country	US
Kind code	B2
Filing date	Aug 25, 2015
Priority date	Sep 10, 2014
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

A fluid pipe device is provided, which includes a pipe member forming a flow channel for flowing a fluid; a heating member for generating heat to heat the pipe member; a metal heat transfer member abutting against the heating member and conducting the heat to the pipe member; and a terminal member electrically connecting the heating member and the heat transfer member. The heat transfer member includes a first heat transfer member and a second heat transfer member, and at least one of the first heat transfer member and the second heat transfer member forms the terminal member at one portion, and the first heat transfer member is provided in the pipe member in such a way as not to be exposed inside the flow channel of the pipe member.

First claim

What is claimed is:

1. A fluid pipe device, comprising:
a pipe member forming a flow channel for flowing a fluid;
a heating member for generating heat to heat the pipe member;
a metal heat transfer member abutting against the heating member and conducting heat to the pipe member; and
a terminal member electrically connecting the heating member and the metal heat transfer member,
wherein the metal heat transfer member comprises a first heat transfer member and a second heat transfer member, and at least one of the first heat transfer member and second heat transfer member forms the terminal member at one portion, and the first heat transfer member is provided in the pipe member not to be exposed inside the flow channel of the pipe member, and
the first heat transfer member includes
a cylinder portion disposed in an axis line direction of the pipe member;
the terminal member provided in a state wherein one portion of the cylinder portion is cut and raised;
a horizontal slit provided in the cylinder portion and extending in the axis line direction; and
a concave-convex portion or a wave-shaped portion provided in an edge portion of the horizontal slit.

2. A fluid pipe device according to claim 1 , wherein the first heat transfer member is integrated with the pipe member by insert molding.

3. A fluid pipe device according to claim 1 , wherein the heating member includes a PTC element having a flat plate shape, and the first heat transfer member and/or second heat transfer member includes a portion abutting against an electrode of the PTC element formed in a flat portion.

4. A fluid pipe device according to claim 3 , wherein the PTC element is clamped by the first heat transfer member and second heat transfer member, and is held in a state urged from a second heat transfer member side.

5. A fluid pipe device comprising:
a pipe member forming a flow channel for flowing a fluid;
a heating member for generating heat to heat the pipe member;
a metal heat transfer member abutting against the heating member and conducting heat to the pipe member, the metal heat transfer member including
a first heat transfer member provided in the pipe member not to be exposed inside the flow channel of the pipe member, and including a cylinder portion arranged in an axis line direction of the pipe member, and
a second heat transfer member including
a substrate portion having a rectangular shape and disposed in a positioning space provided in the pipe member to contact the heating member;
a terminal member formed to extend from the substrate portion and electrically connecting to the heating member; and
an elastic claw provided in a state wherein one portion of the substrate portion is cut and raised, and capable of pressing the substrate portion against the heating member; and

a main member surrounding the pipe member, the heating member, the first heat transfer member, and the second transfer member.

6. A fluid pipe device comprising:
a pipe member forming a flow channel for flowing a fluid;
a heating member for generating heat to heat the pipe member; and
first and second heat transfer members made of metal and abutting against the heating member to conduct heat to the pipe member,
the first heat transfer member having a shape different from that of the second heat transfer member, and including a cylinder portion or a half-cylinder portion disposed in an axis line direction of the pipe member, and a terminal member formed from cutting and raising a portion of the cylinder portion or the half-cylinder portion, for electrically connecting to the heating member,
wherein the pipe member is arranged so that the cylinder portion or the half-cylinder portion is not to be exposed inside the flow channel of the pipe member.

7. A fluid pipe device according to claim 6 , wherein the second heat transfer member includes another terminal member connected to the heating member.

Assignees

• Nifco Inc

Inventors

• Okazaki Tsuyoshi

Classifications

• H05B3/24

  heating conductor being self-supporting · CPC title

• F16L53/35

  Ohmic-resistance heating · CPC title

• H05B3/06

  Heater elements structurally combined with coupling elements or holders · CPC title

• F15D1/001

  Flow of fluid from conduits such as pipes, sleeves, tubes, with equal distribution of fluid flow over the evacuation surface · CPC title

• H05B3/42

  non-flexible · CPC title