NON-REDUCIBLE LOW TEMPERATURE SINTERABLE DIELECTRIC POWER ELECTRONIC CAPACITOR MODULE FOR VEHICLE

• US 20140376157A1
• Filed: 08/14/2013
• Published: 12/25/2014
• Est. Priority Date: 06/25/2013
• Status: Active Grant

• Current Assignee: Samhwa Capacitor Co., Ltd.
• Original Assignee: Samhwa Capacitor Co., Ltd.
• Inventors: OH, Young Joo, YOON, Jung Rag, LEE, Kyung Min, YOO, Young Min
• Granted Patent: US 9,373,444 B2
• Time in Patent Office: Days
• US Class Current: 361/434
• CPC Class Codes: H01G 2/04 specially adapted for mounting on a chassis
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A power electronic capacitor module for vehicle that may reduce the number of solderings by inserting and thereby mounting a capacitor between a single pair of bus bars and thereby may simplify an assembly process. The power electronic capacitor module for vehicle may include a single pair of bus bars disposed to be separate from each other and each having an external electrode support member; an insulating support frame formed to expose the external electrode support member and wrap around a single pair of bus bars and thereby support the bus bars; and a capacitor element having a single pair of external electrodes and inserted between a single pair of bus bars to thereby be supported by the bus bars or the external electrode support members and electrically connect the external electrodes to the external electrode support members.

Claims

1. A power electronic capacitor module for vehicle, comprising:

a single pair of bus bars disposed to be separate from each other and each having an external electrode support member;

an insulating support frame formed to expose the external electrode support member and wrap around a single pair of bus bars and thereby support the bus bars; and

a capacitor element having a single pair of external electrodes and inserted between a single pair of bus bars to thereby be supported by the bus bars or the external electrode support members and electrically connect the external electrodes to the external electrode support members.

2. The power electronic capacitor module of claim 1, wherein a single pair of bus bars is disposed on one side and another side of the insulating support frame, respectively, and is integrally formed with at least one terminal board for inputting and outputting an electrical signal at the respective ends thereof.

3. The power electronic capacitor module of claim 1, wherein each of a single pair of bus bars selects and thereby uses one of an embossing support member, a curved support member, and a truncated support member.

4. The power electronic capacitor module of claim 3, wherein the embossing support member is protruded from a surface of one side or another side of the bus bar using an embossing method among press molding processes to thereby be connected to the external electrode of the capacitor element and support the capacitor element.

5. The power electronic capacitor module of claim 3, wherein the curved support member is protruded from a surface of one side or another side of the bus bar in a state in which ends of one side and another side are connected to the bus bar, to thereby be connected to the external electrode of the capacitor element and support the capacitor element.

6. The power electronic capacitor module of claim 3, wherein the truncated support member is protruded from a surface of one side or another side of the bus bar in a state in which ends of one side and another side are connected to the bus bar, to thereby be connected to the external electrode of the capacitor element and support the capacitor element.

7. The power electronic capacitor module of claim 1, wherein a heat sink pipe is used for each of a single pair of bus bars, and the heat sink pipe connects a truncated support member to an end of one side and is formed with at least one hole to be filled with metal powders in a lengthwise direction.

8. The power electronic capacitor module of claim 1, wherein

the insulating support frame is formed using an injection method,

the injection method uses an insert injection method or a transfer molding method, and

when forming the insulating support frame using the injection method, a receiving space for receiving the capacitor element is formed between a single pair of bus bars.

9. The power electronic capacitor module of claim 1, wherein the insulating support frame is formed to wrap around at least one of one side surface and another side surface of the bus bar, or is formed to wrap around an end of another side of the bus bar.

10. The power electronic capacitor module of claim 1, wherein a material of the insulating support frame selects and thereby uses one of polyamide 66 (PA66), polyethylene terephthalate (PET), polycarbonate (PC), modified polyphenylene oxide (mPPO), polyphenylene sulfide (PPS), polyether ether ketone (PEEK), liquid crystal polymer (LCP), and polyoxymethylene (POM).

11. The power electronic capacitor module of claim 1, wherein the capacitor element uses a multi-layer ceramic capacitor (MLCC) or a surface mount device (SMD) type film capacitor.

12. The power electronic capacitor module of claim 1, wherein the capacitor element is electrically connected to the external electrode support member or is connected to the external electrode support member and a soldering portion by an elastic force provided to the external electrode support member.

13. The power electronic capacitor module of claim 1, wherein the capacitor element is sealed by a molding member formed on the capacitor element, and the molding member is formed within the insulating support frame to seal the capacitor element.

14. The power electronic capacitor module of claim 13, wherein a material of the molding member uses an epoxy molding compound (EMC).

15. A power electronic capacitor module for vehicle, comprising:

a plurality of bus bars separate from each other to be mutually horizontal, and each having a plurality of external electrode support members arranged thereon;

an insulating support frame formed to expose the plurality of external electrode support members and wrap around the plurality of bus bars and thereby support the bus bars;

a plurality of capacitor elements, each having a single pair of external electrodes, and inserted between the plurality of bus bars to thereby be supported by the external electrode support members and be electrically connected to the external electrode support members; and

a molding member formed within the insulating support frame to seal the plurality of capacitor elements,

wherein the insulating support frame is formed using an insert injection method, and the plurality of external electrode support members is spaced apart from the plurality of bus bars in a lengthwise direction of each bus bar, respectively, and thereby two-dimensionally arranged.

16. The power electronic capacitor module of claim 15, wherein at least one of the plurality of bus bars is formed in a shape of ‘

∩

’

, and a plurality of external electrode support members is formed on each of one side and another side thereof.

17. The power electronic capacitor module of claim 15, wherein the capacitor element is electrically connected to the external electrode support member or is connected to the external electrode support member and a soldering member by an elastic force provided to the external electrode support member.

18. A power electronic capacitor module for vehicle, comprising:

a plurality of bus bars separate from each other to be mutually horizontal, and each having a plurality of external electrode embers arranged thereon;

an insulating support frame formed to expose the plurality of external support members and wrap around the plurality of bus bars and thereby support the bus bars;

a plurality of capacitor elements, each having a single pair of external electrodes, and inserted between the plurality of bus bars to thereby be supported by the external electrode support members and be electrically connected to the external electrode support members; and

a molding member formed within the insulating support frame to seal the plurality of capacitor elements,

wherein the insulating support frame is formed using an insert molding method, and the plurality of external electrode support members is spaced apart from the plurality of bus bars in a lengthwise direction of each bus bar and a widthwise direction orthogonal to the lengthwise direction of each bus bar, respectively, and thereby is three-dimensionally disposed.

19. The power electronic capacitor module of claim 18, wherein at least one of the plurality of bus bars is formed in a shape of ‘

∩

’

, and a plurality of external electrode support members is formed on each of one side and another side thereof.

20. The power electronic capacitor module of claim 18, wherein the capacitor element is electrically connected to the external electrode support member or is connected to the external electrode support member and a soldering portion by an elastic force provided to the external electrode support member.