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

• US 10,457,807 B2
• Filed: 06/10/2016
• Issued: 10/29/2019
• Est. Priority Date: 06/11/2015
• Status: Active Grant

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: Okamura, Kouki, Imagawa, Kazuki
• Primary Examiner(s): Islam, Muhammad S
• Application Number:
  US15/580,211
• Publication Number:
  US 20180148574A1
• Time in Patent Office: 1,236 Days
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: C08G 65/002 from unsaturated compounds unsaturated oxiranes C08G65/14
• CPC Class Codes: C08J 2367/02 Polyesters derived from dicarboxylic acids and dihydroxy compounds; C08J2367/06 takes precedence
• CPC Class Codes: C08J 2371/12 Polyphenylene oxides
• CPC Class Codes: C08J 2467/02 Polyesters derived from dicarboxylic acids and dihydroxy compounds C08J2467/06 takes precedence
• CPC Class Codes: C08J 2471/12 Polyphenylene oxides
• CPC Class Codes: C08J 5/18 Manufacture of films or sheets
• CPC Class Codes: C08L 2203/20 use in electrical or conductive gadgets
• CPC Class Codes: C08L 67/02 Polyesters derived from dicarboxylic acids and dihydroxy compounds C08L67/06 takes precedence
• CPC Class Codes: C08L 71/12 Polyphenylene oxides
• CPC Class Codes: C08L 71/123 not modified by chemical after-treatment
• CPC Class Codes: H01G 4/14 Organic dielectrics
• CPC Class Codes: H01G 4/18 of synthetic material, e.g. derivatives of cellulose H01G4/16 takes precedence
• CPC Class Codes: H01G 4/228 Terminals
• CPC Class Codes: H01G 4/33 Thin- or thick-film capacitors thin- or thick-film circuits H01L27/00; capacitors without a potential-jump or surface barrier specially adapted for integrated circuits, details thereof, multistep manufacturing processes therefor H01L28/40
• CPC Class Codes: H01G 4/38 Multiple capacitors, i.e. structural combinations of fixed capacitors
• CPC Class Codes: H01G 4/40 Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations
• CPC Class Codes: H02M 7/48 using discharge tubes with control electrode or semiconductor devices with control electrode
• CPC Class Codes: H02M 7/5387 in a bridge configuration
• CPC Class Codes: H02P 27/06 : using dc to ac converters or inverters H02P27/05 takes precedence
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries

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.

Claims

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 μ

m 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.