Fuse assembly with a capability of indicating a fusing state by light

• US 7,839,258 B2
• Filed: 08/06/2008
• Issued: 11/23/2010
• Est. Priority Date: 08/06/2008
• Status: Active Grant

• Current Assignee: Wen-Ho Cheng, Wen-Tsung Cheng
• Original Assignee: Wen-Ho Cheng, Wen-Tsung Cheng
• Inventors: Cheng, Wen-Ho, Cheng, Wen-Tsung
• Primary Examiner(s): Vortman; Anatoly
• Application Number:
  US12/186,666
• Publication Number:
  US 20100033293A1
• Time in Patent Office: 839 Days
• Field of Search: 337/241, 337/266, 337/242, 337/265
• US Class Current: 337/242
• CPC Class Codes: H01H 85/0417 with parallel side contacts
• CPC Class Codes: H01H 85/147 Parallel-side contacts
• CPC Class Codes: H01H 85/32 Indicating lamp structurally associated with the protective device

Abstract

A fuse assembly capable of indicating whether the fuse is blown or not includes a fuse body formed therein with an accommodating space. The accommodating space is provided with two conductive terminals connected to each other via a metallic fuse. A light-emitting diode is inserted into an accommodating hole of the fuse body, thereby electrically connecting two electrodes of the light-emitting diode to the two conductive terminals. By the above arrangement, the light-emitting diode can be lighted up when the fuse body is blown.

Claims

1. A fuse assembly comprising;

a fuse body formed therein with an accommodating space, a side surface of the fuse body being provided with an accommodating hole;

two conductive terminals accommodated in the accommodating space of the fuse body, an elastic contacting arm being formed on a side surface of each conductive terminal; and

a light-emitting diode inserted into the accommodating hole of the fuse body to be disposed on the two elastic contacting arms, as the two contacting arms are elastic when the light-emitting diode is disposed in the accommodating hole the two contacting arms can be bent slightly to sandwich the light-emitting diode between a top surface of the fuse body and the contacting arms so that a top surface of the light-emitting diode abuts the underside of the top surface of the fuse body, thereby electrically connecting the light-emitting diode to the two conductive terminals.

2. The fuse assembly according to claim 1, wherein the top surface of the fuse body is provided with two troughs, the bottom surface of the fuse body is provided with an open trough, the accommodating space is in communication with the two troughs, the open trough and the accommodating hole.

3. The fuse assembly according to claim 2, wherein the two troughs of the fuse body are arranged in a straight line.

4. The fuse assembly according to claim 1, wherein the two conductive terminals are made of a metallic piece, the two conductive terminals are connected to each other via a metallic fuse and pass through the open trough of the fuse body.

5. The fuse assembly according to claim 1, wherein the side surface of the fuse body is formed with a convex surface, and the convex surface is provided with the accommodating hole.