Connecting structure of choke coil

• US 6,919,789 B2
• Filed: 03/17/2003
• Issued: 07/19/2005
• Est. Priority Date: 03/17/2003
• Status: Expired due to Fees

• Current Assignee: Innotrans Technology Co., Ltd.
• Original Assignee: SZ Fong Electronics Co., Ltd.
• Inventors: Lin, Kuo-Liang
• Primary Examiner(s): Donovan, Lincoln
• Assistant Examiner(s): Poker, Jennifer A.
• Application Number:
  US10/388,515
• Publication Number:
  US 20040183641A1
• Time in Patent Office: 855 Days
• Field of Search: 336/198, 336/65, 336/192, 336/209, 336/212, 336/213, 336/61, 336/182, 336/184, 336/219
• US Class Current: 336/198
• CPC Class Codes: H01F 27/06 Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
• CPC Class Codes: H01F 27/324 Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
• CPC Class Codes: H01F 37/00 Fixed inductances not covered by group H01F17/00

Abstract

A connecting structure of choke coil, comprises a coil base composed of two halves forming an accommodating area within the two halves, and a coiling area beyond the two halves, and a corresponding symmetric connecting section extended from a solid section each on both sides of the coiling area, such that the coil base is installed onto a housing and constitutes an insulation with the housing to prevent a high-voltage electric leakage and comply with the requirements of high-voltage electric leakage tests.

Claims

1. A connecting structure of choke coil, comprising:

a coil base, composed of two halves;

an accommodating area disposed within said two halves;

a coiling area disposed outside said two halves;

a pair of corresponding connecting sections, each extending parallel to a plane between the two halves and extending from a first solid section on both sides of said coiling area;

thereby said coil base being installed onto a housing and insulated with said housing to prevent a high-voltage electric leakage and comply with a high-voltage electric leakage test.

2. The connecting structure of choke coil of claim 1, wherein said connecting section has a hole.

3. The connecting structure of choke coil of claim 1, having a second solid section on both sides of the accommodating area and at least one reinforced rib formed between the first solid section, the second solid section and the connecting section.

4. The connecting structure of choke coil of claim 3, wherein said reinforced rib has a connecting area.

5. The connecting structure of choke coil of claim 4, wherein said connecting area has a protrusion.

6. The connecting structure of choke coil of claim 4, wherein said connecting area has an opening and a blocking section at both ends of the opening.

7. The connecting structure of choke coil of claim 4, wherein said solid section of the connecting area has a buffer area corresponding to a restricting section.

8. The connecting structure of choke coil of claim 4, further comprising a coupling member disposed in said connecting area for structurally connecting said coil base to the housing.

9. The connecting structure of choke coil of claim 8, wherein said coupling member is polygonal and has threads inside.

10. The connecting structure of choke coil of claim 8, wherein said coupling member is integrally formed with said coil base by injection and wrapped in the interior of said coil base.

11. The connecting structure of choke coil of claim 8, wherein said coupling member comprises a restricting section and a coupling section, and said restricting section and coupling section each has threads at their internal edges.

12. The connecting structure of choke coil of claim 11, wherein said restricting section has a circumference larger than the circumference of said coupling section.

13. The connecting structure of choke coil of claim 1, further comprising a movable component has a threaded external surface.