Temperature fuse

• US 5,923,240 A
• Filed: 06/09/1998
• Issued: 07/13/1999
• Est. Priority Date: 06/10/1997
• Status: Expired due to Fees

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Endo, Takayoshi, Nakamura, Goro
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): Vortman, Anatoly
• Application Number:
  US09/093,615
• Time in Patent Office: 399 Days
• Field of Search: 337/158, 337/268, 337/159, 337/290, 337/401, 337/413, 337/414, 337/416, 337/403, 337/404, 337/405, 337/407, 337/408, 337/409
• US Class Current: 337/405
• CPC Class Codes: H01H 1/585 and piercing the wire insulation
• CPC Class Codes: H01H 37/043 Mountings on controlled apparatus
• CPC Class Codes: H01H 37/761 with a fusible element forming part of the switched circuit H01H37/767 takes precedence

Abstract

A temperature fuse for use in an electric circuit provided in an automobile or the like. The temperature fuse includes a pressure-contact terminal having a pressure-contact blade, a temperature opening and closing member having one end connected electrically to the pressure-contact terminal, a signal wire connecting terminal connected electrically to the other end of the temperature opening and closing member, and an insulating case for receiving therein the pressure-contact terminal and the temperature opening and closing member in such a manner that at least the pressure-contact blade and the signal wire connecting terminal are exposed outwardly from the insulating case.

Claims

1. A temperature fuse comprising:

a pressure-contact terminal including a pressure-contact blade for cutting through a cover of a wire and contacting a core of the wire;

temperature opening and closing means having one end connected electrically to said pressure-contact terminal;

a signal wire connecting terminal connected electrically to another end of said temperature opening and closing means and extending parallel to said temperature opening and closing means; and

an insulating case for receiving therein said pressure-contact terminal and said temperature opening and closing means in such a manner that at least said pressure-contact blade and said signal wire connecting terminal are exposed from said insulating case.

2. The temperature fuse as set forth in claim 1, wherein said temperature opening and closing means is formed of a low fusing-point metal member which is fused due to its ambient temperature.

3. The temperature fuse as set forth in claim 1, wherein an electric wire hold portion which is opposed to and in parallel to a pressure-contact portion of said pressure-contact terminal including the pressure-contact blade is disposed on the outside of said insulating case.

4. A temperature fuse comprising:

a pressure-contact terminal including a plate, a pressure-contact portion, and a blade, the blade extending substantially perpendicularly from the plate;

a holding terminal including a plate and a wire holding portion spaced from and parallel to the pressure-contact portion, the wire holding portion extending substantially perpendicular from the holding terminal plate, the holding terminal plate including a first side and a second side;

temperature opening and closing means having one end electrically connected to the pressure-contact terminal plate and another end electrically connected to the first side of the holding terminal plate;

a signal wire connecting terminal extending from the second side of the holding terminal plate; and

a insulating case for receiving therein the pressure-contact terminal and the temperature opening and closing means in such a manner that at least said pressure-contact blade and the signal wire connecting terminal are exposed from the insulating case.

5. The temperature fuse as set forth in claim 4, wherein the temperature opening and closing means is formed of a low fusing-point metal member which is fused due to its ambient temperature.

6. The temperature fuse as set forth in claim 4, wherein the electric wire holding portion is disposed on the outside of the insulating case.

7. A temperature fuse comprising:

a pressure-contact terminal including a plate and a blade for cutting through a cover of a wire and contacting a core of the wire;

a holding terminal including a plate and a wire holding portion, the holding terminal plate including a first side and a second side;

temperature opening and closing means having one end electrically connected to the pressure-contact terminal plate and another end electrically connected to the first side of the holding terminal plate;

a signal wire connecting terminal extending from the second side of the holding terminal plate so that the signal wire connecting terminal extends parallel to the temperature opening and closing means.

8. The temperature fuse as set forth in claim 7, wherein said temperature opening and closing means is formed of a low fusing-point metal member which is fused due to its ambient temperature.