CAPACITOR COVER AND POWER CONVERSION DEVICE

• US 20170018355A1
• Filed: 09/30/2016
• Published: 01/19/2017
• Est. Priority Date: 04/01/2014
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Yaskawa Denki
• Original Assignee: Kabushiki Kaisha Yaskawa Denki
• Inventors: MORIHARA, Takayuki, KUBO, Yuto, NAGATOMO, Shigekatsu
• Granted Patent: US 10,109,419 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01G 2/02 Mountings
• CPC Class Codes: H01G 2/04 specially adapted for mounting on a chassis
• CPC Class Codes: H01G 2/10 Housing; Encapsulation
• CPC Class Codes: H01G 4/224 Housing; Encapsulation
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: H05K 7/1432 specially adapted for power drive units or power converters
• CPC Class Codes: H05K 7/14322 wherein the control and power circuits of a power converter are arranged within the same casing

Abstract

This disclosure discloses a capacitor cover configured to store a plurality of capacitors of a power conversion device. The capacitor cover includes a first cover including a plurality of types of first contact surfaces configured to be in contact with one side of each surface of the capacitors of plurality of types with different sizes.

Claims

1. A capacitor cover configured to store a plurality of capacitors of a power conversion device, comprising

a first cover comprising a plurality of types of first contact surfaces configured to be in contact with one side of each surface of the capacitors of plurality of types with different sizes.

2. The capacitor cover according to claim 1, further comprising

a second cover configured to be detachably attached to the first cover, the second cover comprising a plurality of types of second contact surfaces configured to be in contact with another side of the each surface of the capacitors of plurality of types with different sizes at positions corresponding to the first contact surfaces, the second cover being configured to define a first storage part for storing the capacitor between the first cover and the second cover when the second cover is attached to the first cover.

3. The capacitor cover according to claim 2, further comprising

a securing member secured to at least one of the first cover and the second cover in the first storage part so as to be positionally changed, the securing member to which one end of the capacitor is secured.

4. The capacitor cover according to claim 3,

wherein the first cover comprises the plurality of types with a different inside dimension of the first contact surfaces each having a concave shape, and

wherein the second cover comprises the plurality of types with a different inside dimension of the second contact surfaces each having a concave shape.

5. The capacitor cover according to claim 4,

wherein the first cover comprises the plurality of types with a different curvature radius of the first contact surfaces each having a cylindrical shape, and

wherein the second cover comprises the plurality of types with a different curvature radius of the second contact surfaces each having a cylindrical shape.

6. The capacitor cover according to claim 5,

wherein the first cover comprises a first stepped surface on a boundary between the two first contact surfaces each having the different curvature radius,

wherein the second cover comprises a second stepped surface on a boundary between the two second contact surfaces each having the different curvature radius, and

wherein the securing member is secured at a position of the at least one of the first cover and the second cover such that a gap with a predetermined dimension is formed between another end of the capacitor secured to the securing member and at least one of the first stepped surface and the second stepped surface.

7. The capacitor cover according to claim 6,

wherein the securing member comprises a terminal connection part having conductivity and configured so as to be electrically connected with a ground terminal disposed on the one end of the capacitor.

8. The capacitor cover according to claim 7,

wherein at least one of the first cover and the second cover comprises a hook part configured to hook a wiring of the power conversion device.

9. The capacitor cover according to claim 8, further comprising

a plurality of leg parts disposed on a plurality of positions on a peripheral edge of one cover of the first cover and the second cover, the plurality of leg parts defining a second storage part for storing a switching element of the power conversion device at a side opposite to the first storage part of the one cover.

10. A power conversion device configured to convert power, comprising:

a housing;

a capacitor cover secured to the housing, the capacitor cover comprising

a first cover comprising a plurality of types of first contact surfaces configured to be in contact with one side of each surface of the capacitors of plurality of types with different sizes; and

a plurality of capacitors stored in the capacitor cover.

11. The power conversion device according to claim 10,

wherein the capacitor is a cylindrical type capacitor configured to extend along a cylindrical axis direction in an overcurrent state, and the capacitor comprises a ground terminal which is electrically connected with a securing member of the capacitor cover at one end, and comprises a wiring terminal to which a cable wiring is connected at another end.

12. A capacitor cover configured to store a plurality of capacitors of a power conversion device, comprising

means for storing a plurality of types of the capacitors with different sizes by one type of the capacitor cover.