Composite resin material, dielectric film, and film capacitor and combination type capacitor employing same, inverter, and electric vehicle

Patent metadata

Field	Value
Publication number	US-10457807-B2
Application number	US-201615580211-A
Country	US
Kind code	B2
Filing date	Jun 10, 2016
Priority date	Jun 11, 2015
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

A composite resin material including: a first organic resin having a phenylene ether structure; and a second organic resin having a main skeleton composed of a polyester structure, one of the first organic resin and the second organic resin forming a continuous phase, the other one thereof being present within the continuous phase, as organic resin particles having an average particle diameter of 1 μm or less.

First claim

The invention claimed is:

1. A composite resin material, comprising:
a first organic resin having a phenylene ether structure; and
a second organic resin having a main skeleton composed of a polyester structure and containing an alkoxy group,
one of the first organic resin and the second organic resin forming a continuous phase,
the other one thereof being present within the continuous phase, as organic resin particles having an average particle diameter of 1 μm or less.

2. The composite resin material according to claim 1 , further comprising a metallic element.

3. The composite resin material according to claim 1 , wherein the organic resin particles are composed of the second organic resin and have an average particle diameter of 300 nm or less.

4. The composite resin material according to claim 1 , wherein a fraction of the second organic resin relative to a total amount of 100 parts by mass of the first organic resin and the second organic resin is 1 to 75 parts by mass.

5. The composite resin material according to claim 1 , wherein the main skeleton of the second organic resin is bound to the alkoxy group by an ester bond.

6. The composite resin material according to claim 1 , wherein a molar ratio of the alkoxy group to all ester bonds present in the first organic resin and the second organic resin is 3% to 30%.

7. The composite resin material according to claim 1 , wherein a fraction of the second organic resin relative to a total amount of 100 parts by mass of the first organic resin and the second organic resin is 1 to 30 parts by mass.

8. The composite resin material according to claim 1 , further comprising an organic solvent,
wherein the organic solvent dissolves both the first organic resin and the second organic resin.

9. A dielectric film, comprising:
the composite resin material according to claim 1 .

10. The composite resin material according to claim 2 , wherein a content of the metallic element is 0.01 to 1.0 mass % relative to a total amount of the composite resin material.

11. The composite resin material according to claim 2 , wherein the metallic element includes at least one selected from Mg, Ti, Zr, and Al.

12. The composite resin material according to claim 8 , wherein a content of the organic solvent is 5 mass % or lower.

13. The composite resin material according to claim 8 , wherein the organic solvent is composed of at least one of chloroform and toluene.

14. A film capacitor, comprising:
a body member comprising a wound body or stacked body of a metallized film in which a metal film is disposed on the dielectric film according to claim 9 ; and
an external electrode disposed on the body member.

15. A combination type capacitor, comprising:
a plurality of the film capacitors according to claim 14 ; and
at least one bus bar connecting all of the plurality of the film capacitors.

16. An inverter, comprising:
a bridge circuit including switching elements; and
a capacitance member connected to the bridge circuit,
the capacitance member including the film capacitor according to claim 14 .

17. An inverter, comprising:
a bridge circuit including switching elements; and
a capacitance member connected to the bridge circuit,
the capacitance member including the combination type capacitor according to claim 15 .

18. An electric vehicle, comprising:
a power supply;
an inverter connected to the power supply;
an electric motor connected to the inverter; and
wheels driven by the electric motor,
the inverter being the inverter according to claim 16 .

19. An electric vehicle, comprising:
a power supply;
an inverter connected to the power supply;
an electric motor connected to the inverter; and
wheels driven by the electric motor,
the inverter being the inverter according to claim 17 .

Assignees

• Kyocera Corp

Inventors

• Okamura Kouki
• Imagawa Kazuki

Classifications

• C08L67/02

  Polyesters derived from dicarboxylic acids and dihydroxy compounds (C08L67/06 takes precedence) · CPC title

• C08J2471/12

  Polyphenylene oxides · CPC title

• H01G4/228

  Terminals · CPC title

• C08J2371/12

  Polyphenylene oxides · CPC title

• H02M7/48

  using discharge tubes with control electrode or semiconductor devices with control electrode · CPC title