Fuse structure with power disconnection light indicating function

• US 8,164,411 B2
• Filed: 01/06/2010
• Issued: 04/24/2012
• Est. Priority Date: 01/06/2010
• Status: Active Grant

• Current Assignee: Wen-Ho Cheng, Wen-Tsung Cheng
• Original Assignee: Wen-Ho Cheng, Wen-Tsung Cheng
• Inventors: Cheng, Wen-Tsung, Cheng, Wen-Ho
• Primary Examiner(s): Vortman, Anatoly
• Application Number:
  US12/652,961
• Publication Number:
  US 20110163839A1
• Time in Patent Office: 839 Days
• Field of Search: 337/198, 337/241, 337/242, 337/265, 337/266
• US Class Current: 337/266
• CPC Class Codes: H01H 85/0417 with parallel side contacts
• CPC Class Codes: H01H 85/32 Indicating lamp structurally associated with the protective device

Abstract

A fuse structure includes a casing, a fuse component and a light emitting element having pins. The casing includes a top plate, a containing space disposed below the top plate and two openings formed on the top plate. The fuse component includes two electrically conductive plates and a fuse filament, and each electrically conductive plate has a conducting portion protruded from an upper end of the electrically conductive plate, and the conducting portions are inserted into the two openings respectively. The top plate includes two compressing portions protruded from the bottom of the top plate and arranged alternately with the two conducting portions, such that an interval is formed between an external edge of each compressing portion and an internal edge of each corresponding conducting portion, and the pins of the light emitting element are clamped in the interval.

Claims

1. A fuse structure with a power disconnection light emitting function, comprising:

a casing, having a top plate, a containing space disposed below the top plate, and two openings formed in the top plate and interconnected to the containing space;

a fuse component, installed in the containing space, and including two electrically conductive plates, and a fuse filament coupled between the two electrically conductive plates, and each electrically conductive plate having a conducting portion protruded from an upper end of the electrically conductive plate, and each conducting portion having a concave forked opening formed thereon, such that each conducting portion is fork-shaped and has two forked horns, and the two conducting portions are inserted into the two openings respectively; and

a light emitting element disposed inside the containing space, having two anode and cathode pins;

wherein two compressing portions are protruded from the bottom of the top plate and extended into the containing space, and the two compressing portions are disposed adjacent to the two conducting portions respectively, such that an interval is formed between each compressing portion and a corresponding conducting portion, and each pin of the light emitting element are clamped in the interval, and

wherein the casing further has a first position aligning portion protruded from the bottom of the top plate and extended into the containing space, the fuse component further has a second position aligning portion concaved on the upper end of one electrically conductive plate, and the first and the second position aligning portions are aligned in positions corresponding to each other.

2. The fuse structure with a power disconnection light emitting function as recited in claim 1, wherein the casing is made of a translucent material.

3. The fuse structure with a power disconnection light emitting function as recited in claim 1, wherein only the middle of the casing disposed at a position corresponding to the light emitting element is made of a translucent material.

4. The fuse structure with a power disconnection light emitting function as recited in claim 1, wherein the casing further includes two side plates extended from the bottom of the top plate, and the containing space is formed between the two side plates.

5. The fuse structure with a power disconnection light emitting function as recited in claim 4, wherein the two electrically conductive plates of the fuse component include a plurality of positioning holes, a plurality of recesses are formed at corresponding positions on external surfaces of the two side plates, and a plurality of protrusions formed on internal surfaces of the two side plates and extended into the positioning holes respectively.

6. The fuse structure with a power disconnection light emitting function as recited in claim 1, wherein each conducting portion has a concave notch formed on one forked horn adjacent to a bottom edge of the opening.

7. The fuse structure with a power disconnection light emitting function as recited in claim 1, wherein the light emitting element is a light emitting diode.

8. The fuse structure with a power disconnection light emitting function as recited in claim 1, wherein each pin of the light emitting element is deformed in the interval to form an L-shape.