Electric circuit module as well as power converter and vehicle-mounted electric system that include the module

An electric circuit module, comprising:

• an electric apparatus;
• a heat dissipating member that dissipates heat generated by the electric apparatus;
• a fixing tool that fixes the electric apparatus;
• and
• a pressurizing tool that presses the fixing tool;
• wherein:
• electric circuit parts in the electric apparatus are enclosed by a package;
• a plurality of wires electrically connected to the electric circuit parts extend externally from the interior of the package;
• a heat dissipating surface is provided on a surface of the package;
• the fixing tool fixes the electric apparatus to the heat dissipating member, the pressing force received from the pressurizing tool being used to press the electric apparatus against the heat dissipating member so that the heat dissipating surface is brought into surface contact with a surface of the heat dissipating member;
• the pressurizing tool is formed by a laminate member in which an expandable and contractible member and a metallic member are laminated so that the pressurizing tool follows thermal expansion and contraction of the heat dissipating member, the electric apparatus, or the fixing tool in the pressing direction while maintaining the force to press the fixing tool;
• and
• the heat dissipating surface is pressed against the surface of the heat dissipating member and brought into surface contact with the surface of the heat dissipating member when the fixing tool is pressed by the pressurizing tool and then the electric apparatus is pressed by the fixing tool.

An electric circuit module, comprising:

• a laminate body;
• and
• heat dissipating members that are disposed at both ends of the laminating body in the laminating direction and clamp the laminating body;
• wherein:
• the laminating body comprises
• electric apparatus that are disposed at both ends in the laminating direction and mounted on surfaces of the heat dissipating members,
• fixing tools disposed on sides, opposite to the heat dissipating members, of the electric apparatus,
• electrically conductive members that are disposed on sides, opposite to the electric apparatus, of the fixing tools and electrically connected to the corresponding electric apparatus, and
• an insulating member that is disposed on sides, opposite to the fixing tools, of the electrically conductive members and clamped between the electrically conductive members so as to provide electrical insulation between the electrically conductive members;
• electric circuit parts in the electric apparatus are enclosed by a package;
• a plurality of wires electrically connected to the electric circuit parts extend externally from the interior of the package;
• a heat dissipating surface is provided on a surface of the package;
• the insulating member is made of an electrically insulative member having elasticity, the insulating member and the electrically conductive members constituting a pressurizing tool;
• the pressurizing tool presses the fixing tools, elastic force of the insulating member being transmitted to the electrically conductive members, the electrically conductive members then pressing the fixing tools;
• the fixing tool fixes the electric apparatus to the heat dissipating member, the pressing force received from the pressurizing tool being used to press the electric apparatus against the heat dissipating member so that the heat dissipating surface is brought into surface contact with a surface of the heat dissipating member;
• and
• the heat dissipating surface is pressed against the surface of the heat dissipating member and brought into surface contact with the surface of the heat dissipating member when the fixing tool is pressed by the pressurizing tool and then the electric apparatus is pressed by the fixing tool.

An electric circuit module, comprising:

• a laminate body;
• and
• heat dissipating members that are disposed at both ends of the laminating body in the laminating direction and clamp the laminating body;
• wherein:
• the laminating body comprises
• electric apparatus that are disposed at both ends in the laminating direction and mounted on surfaces of the heat dissipating members,
• fixing tool disposed on side, opposite to the heat dissipating members, of the electric apparatus, and
• a pressurizing tool that is disposed on sides, opposite to the electric apparatus, of the fixing tools and presses the fixing tools toward the heat dissipating members;
• electric circuit parts in the electric apparatus are enclosed by a package;
• a plurality of wires electrically connected to the electric circuit parts extend externally from the interior of the package;
• a heat dissipating surface is provided on a surface of the package;
• the fixing tool fixes the electric apparatus to the heat dissipating member, the pressing force received from the pressurizing tool being used to press the electric apparatus against the heat dissipating member so that the heat dissipating surface is brought into surface contact with a surface of the heat dissipating member;
• the pressurizing tool is formed by a laminate member in which an expandable and contractible member and a metallic member are laminated so that the pressurizing tool follows thermal expansion and contraction of the heat dissipating members, the electric apparatus, or the fixing tools in the pressing direction while maintaining the force to press the fixing tools;
• and
• the heat dissipating surface is pressed against the surface of the heat dissipating member and brought into surface contact with the surface of the heat dissipating member when the fixing tool is pressed by the pressurizing tool and then the electric apparatus is pressed by the fixing tool.

An electric circuit module, comprising:

• a laminate body;
• and
• a block-like heat dissipating member that accommodates the laminate body;
• wherein:
• coolant flow passages are provided in parallel along the heat dissipating member in the longitudinal direction;
• a recess is provided parallel to the coolant flow passages between the coolant flow passages for the heat dissipating member in the longitudinal direction, the recess accommodating the laminate body;
• the laminate body comprises
• electric apparatus that are disposed at both ends in the laminating direction and mounted on surfaces of the recess along the coolant flow passages,
• a fixing tool that is disposed on sides, opposite to the heat dissipating member, of the electric apparatus, and
• a pressurizing tool that is disposed on sides, opposite to the electric apparatus, the pressurizing tool pressing the fixing tool toward the heat dissipating member;
• electric circuit parts in the electric apparatus are enclosed by a package;
• a plurality of wires electrically connected to the electric circuit parts extend externally from the interior of the package;
• a heat dissipating surface is provided on a surface of the package;
• the pressurizing tool is formed by a laminate member so that the pressurizing tool follows thermal expansion and contraction of the heat dissipating members, the electric apparatus, or the fixing tools in the pressing direction while maintaining the force to press the fixing tools;
• the pressurizing tool comprises
• electrically conductive members that are electrically connected to the corresponding electric apparatus and disposed on surfaces, opposite to the electric apparatus, of the fixing tools, and
• an insulating member that is made of an electrically insulative member having elasticity, the insulating member providing electrical insulation between the electrically conductive members, and being disposed on sides, opposite to the fixing tool, of the electrically conductive members and clamped between the electrically conductive members;
• the pressurizing tool transmits elastic force of the insulating member to the electrically conductive members, the electrically conductive members then pressing the fixing tool;
• the fixing tool fixes the electric apparatus on the surface of the recess that is formed along the coolant flow passages;
• the fixing tool uses pressing force received from the pressurizing tool to press the electric apparatus against on the surface of the recess that is formed along the coolant flow passages so that the heat dissipating surface is brought into surface contact with the surface of the recess;
• and
• the heat dissipating surface is pressed against the surface of the recess that is formed along the coolant flow passages and brought into surface contact with the surface of the recess that is formed along the coolant flow passage when the fixing tool is pressed by the pressurizing tool and then the electric apparatus is pressed by the fixing tool.

An electric circuit module, comprising:

• a laminate body;
• and
• heat dissipating members that are disposed at both ends of the laminating body in the laminating direction and clamp the laminating body;
• wherein:
• the laminating body comprises
• electric apparatus that are disposed at both ends in the laminating direction and mounted on surfaces of the heat dissipating members,
• fixing tools disposed on sides, opposite to the heat dissipating members, of the electric apparatus,
• electrically conductive members that are disposed on sides, opposite to the electric apparatus, of the fixing tools and electrically connected to the corresponding electric apparatus, and
• an insulating member that is disposed on sides, opposite to the fixing tools, of the electrically conductive members and clamped between the electrically conductive members so as to provide electrical insulation between the electrically conductive members;
• electric circuit parts in the electric apparatus are enclosed by a package;
• a plurality of wires electrically connected to the electric circuit parts extend externally from the interior of the package;
• a heat dissipating surface is provided on a surface of the package;
• the insulating member is made of an electrically insulative member having elasticity;
• the electrically conductive members cause currents to flow in diametrically opposite directions;
• the fixing tool fixes the electric apparatus to the heat dissipating member, the pressing force received from the insulating member through the electrically conductive member being used to press the electric apparatus against the heat dissipating member so that the heat dissipating surface is brought into surface contact with surface of the heat dissipating member;
• and
• the heat dissipating surface is pressed against the surface of the heat dissipating member and brought into surface contact with the surface of the heat dissipating member when the fixing tool is pressed by the insulating member through the electrically conductive member and then the electric apparatus is pressed by the fixing tool.