Fuse link assembly and layout method therefor

• US 6,759,938 B2
• Filed: 04/25/2002
• Issued: 07/06/2004
• Est. Priority Date: 04/27/2001
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Yamada, Hiroaki, Nakamura, Tsuyoshi, Matsumura, Norio, Ohtsuka, Haruhito
• Primary Examiner(s): Vortman, Anatoly
• Application Number:
  US10/131,079
• Publication Number:
  US 20020167390A1
• Time in Patent Office: 803 Days
• Field of Search: 337/161, 337/162, 337/164, 337/189, 337/229, 337/255, 337/293, 337/295, 337/264, 337/290, 296/23
• US Class Current: 337/161
• CPC Class Codes: H01H 2085/0555 Input terminal connected to a plurality of output terminals, e.g. multielectrode
• CPC Class Codes: H01H 85/044 General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified H01H85/046 - H01H85/048 take precedence

Abstract

A fuse circuit (11) having a plurality of terminals (22, 23) provided on a common joint plate (21) and a fuse circuit (11′) having a plurality of terminals (22′, 23′) provided on a common joint plate (21′) are incorporated into a housing (12), thereby constituting a fuse link assembly (10). The plurality of fuse circuits (11, 11′) are provided with circuit connection portions (27, 27′) which share a power input portion. The fuse circuits (11, 11′) are incorporated into the housing (12) in parallel. As a result, the number of circuits is increased, by means of only enlargement of widthwise direction Y which is easy to increase while enlargement of longitudinal direction X stemming from packaging of circuits is minimized.

Claims

1. A fuse link assembly comprising:

at least two fuse circuits, each having a plurality of terminals, a common joint plate and a circuit connection portion, the terminals being arranged longitudinally in a chain manner and connected to the joint plate with fusible portions; and

a housing in which the fuse circuits are mounted;

wherein

the at least two fuse circuits are mounted in the housing so as to extend generally in parallel with each other; and

the at least two fuse circuits share a power input portions,

wherein the at least two fuse circuits are separated by a gap measured in a direction generally orthogonal to the direction of extension.

2. The fuse link assembly according to claim 1, wherein each of the plurality of terminals are configured to be easily removable in accordance with a presence of circuits to be connected to the terminals.

3. The fuse link assembly according to claim 1, wherein the housing on which the fuse circuits are mounted is configured so as to be directly connectable to a relay box main body.

5. The fuse link assembly according to claim 1, wherein the plurality of terminals on one of said at least two fuse circuits comprises at least a first terminal and a second terminal, wherein said first and second terminals are of different structural configurations.

6. The fuse link assembly according to claim 5, wherein said first terminal comprises a male terminal.

7. The fuse link assembly according to claim 5, wherein said second terminal comprises a screw terminal.

8. The fuse link assembly according to claim 1, wherein said plurality of terminals on one of said at least two fuse circuits are arranged substantially in the same plane, which extends substantially in parallel to the direction of extension of said fuse circuits.

9. The fuse link assembly according to claim 1, wherein said plurality of terminals on one of said at least two fuse circuits are generally arranged in two separate planes, arranged substantially parallel to each other and to the direction of extension of said fuse circuits.

10. The fuse link assembly according to claim 1, wherein said at least two fuse circuits are connected through a fusible element.

11. The fuse link assembly according to claim 1, wherein said at least two fuse circuits are connected through an ALT circuit.

12. The fuse link assembly according to claim 1, wherein said at least two fuse circuits are connected through a fusible element and an ALT circuit.

13. The fuse link assembly according to claim 1, wherein said at least two fuse circuits are electrically connected in series with respect to said power input portion.

14. The fuse link assembly according to claim 1, wherein said circuit connection portions of said at least two fuse circuits extend toward each other, generally orthogonally from the direction of extension of said fuse circuits.

15. The fuse link assembly according to claim 1, further comprising fastening means for simultaneously connecting said at least two fuse circuits to each other, at said circuit connection portions, and to said housing.

16. The fuse link assembly according to claim 1, wherein:

said at least two fuse circuits comprises a first fuse circuit and a second fuse circuit;

said first fuse circuit further comprises a proximal end connected to said power input portion, and a distal end connected to said second fuse circuit via said circuit connection portion; and

said second fuse circuit further comprises a proximal end connected to said first fuse circuit via said circuit connection portions, and a distal end arranged generally near said proximal end of said first fuse circuit.

17. The fuse link assembly according to claim 16, wherein said first and second fuse circuits, along with said circuit connection portions of said first and second fuse circuits, forms a generally U-shaped connection.

4. A layout method for a fuse link assembly comprising the steps of:

providing at least two fuse circuits, each having a plurality of terminals and a common joint plate, the terminals being be arranged longitudinally in a chain manner and connected to the joint plate with fusible portions;

providing with a circuit connection portion sharing a power input portion;

fastening the circuit connection portion together; and

mounting the fuse circuits in the housing to extend generally in parallel with each other,

wherein, when the fuse circuits are mounted in the housing, they are separated by a gap measured in a direction generally orthogonal to the direction of extension.

18. A fuse link assembly comprising:

a first fuse circuit;

a second fuse circuit; and

a housing;

wherein;

said first and second fuse circuits each comprise a common joint plate, a plurality of terminals successively extending from said common joint plate along a direction of extension of said common joint plate, and a circuit connection portion arranged at one end of said common joint plate;

said plurality of terminals are connected to said first and second fuse circuits via fusible elements;

said first and second fuse circuits are offset from each other so as to generally extend in parallel directions, said parallel directions being in two separate planes.

19. The fuse link assembly according to claim 18, wherein:

said first fuse circuit further comprises a proximal end connected to a power input portion, and a distal end connected to said second fuse circuit via said circuit connection portion; and

said second fuse circuit further comprises a proximal end connected to said first fuse circuit via said circuit connection portions, and a distal end arranged generally near said proximal end of said first fuse circuit.

20. The fuse link assembly according to claim 19, wherein said first and second fuse circuits, along with said circuit connection portions of said first and second fuse circuits, forms a generally U-shaped connection.

21. A fuse link assembly comprising:

at least two fuse circuits, each having a plurality of terminals, a common joint plate and a circuit connection portion, the terminals being arranged longitudinally in a chain manner and connected to the joint plate with fusible portions; and

a housing in which the fuse circuits are mounted;

wherein

the at least two fuse circuits are mounted in the housing so as to extend generally in parallel with each other; and

the at least two fuse circuits share a power input portion,

wherein the plurality of terminals on one of said at least two fuse circuits comprises at least a first terminal and a second terminal, wherein said first and second terminals are of different structural configurations.

22. The fuse link assembly according to claim 21, wherein said first terminal comprises a male terminal.

23. The fuse link assembly according to claim 21, wherein said second terminal comprises a screw terminal.

24. A fuse link assembly comprising:

at least two fuse circuits, each having a plurality of terminals, a common joint plate and a circuit connection portion, the terminals being arranged longitudinally in a chain manner and connected to the joint plate with fusible portions; and

a housing in which the fuse circuits are mounted;

wherein

the at least two fuse circuits are mounted in the housing so as to extend generally in parallel with each other; and

the at least two fuse circuits share a power input portion,

wherein said plurality of terminals on one of said at least two fuse circuits are generally arranged in two separate planes, arranged substantially parallel to each other and to the direction of extension of said fuse circuits.

25. A fuse link assembly comprising:

at least two fuse circuits, each having a plurality of terminals, a common joint plate and a circuit connection portion, the terminals being arranged longitudinally in a chain manner and connected to the joint plate with fusible portions; and

a housing in which the fuse circuits are mounted;

wherein

the at least two fuse circuits are mounted in the housing so as to extend generally in parallel with each other; and

the at least two fuse circuits share a power input portion,

wherein said at least two fuse circuits are connected through a fusible element.

26. A fuse link assembly comprising:

at least two fuse circuits, each having a plurality of terminals, a common joint plate and a circuit connection portion, the terminals being arranged longitudinally in a chain manner and connected to the joint plate with fusible portions; and

a housing in which the fuse circuits are mounted;

wherein

the at least two fuse circuits are mounted in the housing so as to extend generally in parallel with each other; and

the at least two fuse circuits share a power input portion,

wherein said at least two fuse circuits are connected through a fusible element and an ALT circuit.

27. A fuse link assembly comprising:

at least two fuse circuits, each having a plurality of terminals, a common joint plate and a circuit connection portion, the terminals being arranged longitudinally in a chain manner and connected to the joint plate with fusible portions; and

a housing in which the fuse circuits are mounted;

wherein

the at least two fuse circuits are mounted in the housing so as to extend generally in parallel with each other; and

the at least two fuse circuits share a power input portion, wherein;

said at least two fuse circuits comprises a first fuse circuit and a second fuse circuit;

said first fuse circuit further comprises a proximal end connected to said power input portion, and a distal end connected to said second fuse circuit via said circuit connection portion; and

said second fuse circuit further comprises a proximal end connected to said first fuse circuit via said circuit connection portions, and a distal end arranged generally near said proximal end of said first fuse circuit.

28. The fuse link assembly according to claim 27, wherein said first and second fuse circuits, along with said circuit connection portions of said first and second fuse circuits, forms a generally U-shaped connection.