Connection structure and inverter

Patent metadata

Field	Value
Publication number	US-9565792-B2
Application number	US-201314082580-A
Country	US
Kind code	B2
Filing date	Nov 18, 2013
Priority date	Nov 19, 2012
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

Two opening through which a refrigerant runs are connected by a first connecting pipe and a second connecting pipe. One end of the first connecting pipe is connected to a first opening by a planar seal. Another end of the first connecting pipe is connected to one end of a second connecting pipe by a shaft seal. Another end of the second connecting pipe is connected to a second opening by a planar seal. An axial direction of a shaft seal is perpendicular to a plane that includes the first opening.

First claim

What is claimed is:

1. A connection structure for connecting a first opening and a second opening through which a fluid flows to rigid connecting pipes, the connection structure comprising:
a first connecting pipe, one end of the first connecting pipe being connected to the first opening by a planar seal; and
a second connecting pipe, one end of the second connecting pipe being connected to another end of the first connecting pipe by a shaft seal, another end of the second connecting pipe being connected to the second opening by a planar seal, and an axial direction of the shaft seal being perpendicular to a plane including the first opening.

2. The connection structure according to claim 1 , wherein
the first connecting pipe is a bush configured by a cylindrical section and a flange,
the cylindrical section is inserted in the first opening while the second connecting pipe is inserted in the cylindrical section through the shaft seal, and
the flange is provided on an outer periphery of the cylindrical section and contacts a periphery of the first opening through the planar seal.

3. An inverter comprising:
a housing having a first opening and a second opening;
a first connecting pipe connected to the first opening;
a second connecting pipe connected to the second opening, the first connecting pipe being connected to the second connecting pipe;
a first planar seal member disposed between a side surface of the housing and one end of the first connecting pipe;
a second planar seal member disposed in a connecting section between the side surface of the housing and another end of the second connecting pipe; and
a first shaft seal member disposed between another end of the first connecting pipe and one end of the second connecting pipe, an axial direction of the first shaft seal member being perpendicular to a plane including the first opening.

4. The inverter according to claim 3 , wherein
the first connecting pipe is a bush,
the bush is configured by a cylindrical section inserted in the first opening and a flange provided on an outer periphery of the cylindrical section,
the one end of the second connecting pipe is inserted in the cylindrical section,
the first shaft seal member are disposed between an inner peripheral surface of the cylindrical section and an outer peripheral surface of the second connecting pipe, and
the first planar seal member is disposed between the flange and the side surface of the housing.

5. The inverter according to claim 3 , wherein
the first connecting pipe and the second connecting pipe are rigid bodies.

6. The inverter according to claim 3 , wherein
the housing includes a first housing and a second housing,
the first opening through which a refrigerant flows is provided in the first housing,
the second opening through which the refrigerant flows is provided in the second housing, and
the first opening and the second opening are connected by the first connecting pipe and the second connecting pipe.

7. The inverter according to claim 3 , further comprising:
a stacked cooling unit, wherein
the stacked cooling unit has a plurality of cooling plates between which a heating unit is held and a connecting pipe connected to the adjacent cooling plates, and
the first connecting pipe is connected to a rigid tube that extends from the cooling plate located at an end of the stacked cooling unit.

8. The inverter according to claim 7 , wherein
the rigid tube and the cooling plate are made of a same material, and thickness of the cooling plate is thinner than that of the rigid tube.

9. The inverter according to claim 7 , further comprising:
a second shaft seal member disposed between an inner peripheral surface at other end of the first connecting pipe and an outer peripheral surface of the rigid tube, wherein the first shaft seal member is disposed between the inner peripheral surface at the other end of the first connecting pipe and an outer peripheral surface at the one end of the second connecting pipe.

Assignees

• Ishikawa Keitaro
• Kitami Akio
• Hamatani Takashi
• Iwata Kunihiro
• Iguchi Satoshi
• Toyota Motor Co Ltd
• Denso Corp

Inventors

• Ishikawa Keitaro
• Kitami Akio
• Hamatani Takashi
• Iwata Kunihiro
• Iguchi Satoshi

Classifications

• F16L5/12

  the pipe being cut in two pieces · CPC title

• H05K7/20927 Primary

  Liquid coolant without phase change · CPC title

• F16L21/022

  used with sleeves or nipples for pipes of the same diameter, or with reduction pieces (F16L21/025 takes precedence) · CPC title

• F28F9/26

  Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators (connecting different sections in water heaters F24H9/14 {, connecting headers with inlet or outlet fittings F28F9/0246}) · CPC title