JP2501987Y2 - Screw-type fusible link mounting structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a mounting structure of a screw-type fusible link, which can improve space efficiency in particular and can easily perform wiring connection work. And a mounting structure for a screw-type fusible link.

[Conventional technology]

4 and 5 show a conventional wiring box to which a fusible link is attached (Actual No. 63-127055).
A plurality of relay mounting housings 2, 2 ... And a plurality of fusible link mounting housings 3 are respectively formed on the upper surface of the wiring box body 1. The fusible link mounting housing 3 is a screw-type fuse. It includes a bull link mounting housing 3a and a terminal fitting type fusible link mounting housing 3b.

In addition, a corner outer wall 4 that is inclined with respect to the outer wall of the wiring box body 1 is formed at a corner of the wiring box body 1. The corner outer wall 4 includes the corner outer wall 4 and the outer wall 4. A projecting portion 5 having an outer wall orthogonally extending to the corner of the wiring box body 1
Are formed. The screw-type fusible link mounting housing 3a is wired at a position on the upper surface of the wiring box body 1 corresponding to the protruding portion 5, and the screw-mounting fusible link mounting housing 3a is mounted on both surfaces of the protruding portion 5. The nut members 6 are provided at predetermined positions below the housing 3a for mounting the fusible link.
a and 6b are fixed. Further, on one nut member 6a portion of the projecting portion 5, a chain terminal 7 whose end portion is branched to each terminal fitting type fusible link mounting housing 3b is arranged.

The fusible link 8 is a screw-type fusible link 8 when high current characteristics of about 60 to 100 A are required.
The terminal fitting type fusible link 8 is used when a low current characteristic of about 30 to 50 A is sufficient.

Further, on the lower surface side of the screw-type fusible link 8, as shown in FIG. 6, there are two legs 9a, 9 for electrical connection.
b is formed so as to project, and screw holes 10a and 10b for tightening are formed in the foot portions 9a and 9b, respectively.

In such a conventional wiring box, the screw-type fusible link mounting housing 3a has the screw-type fusible link 8 mounted thereon, and the legs 9a and 9b thereof are projected through the lower surface of the housing 3a. Located on both sides of section 5. Then, in a state where the screw hole 10a of the one foot portion 9a is aligned with the one nut member 6a of the projecting portion 5, the bolt 12 is screwed together with the round terminal 11a of the predetermined wiring through the chain terminal 7.
The foot portion 9a, the chain terminal 7 and the round terminal 11a are respectively connected by being screwed into a.
Further, a round terminal 11b of a wire connected to the load side is connected to the other foot 9b by screwing the bolt 12 into the other nut member 6b.

[Problems to be solved by the device]

However, in the conventional attachment structure of the screw-type fusible link, when the foot portions 9a and 9b of the screw-type fusible link 8 are tightened with the bolts 12, the protrusions 5 have a certain extent on both sides thereof. Since it is necessary to secure a working space, it is necessary to mount the wiring box body 1 at a position where there is no part of the vehicle body on both sides of the protruding portion 5 when mounting the wiring box body 1 on a vehicle such as an automobile. However, there is a problem that a desired auxiliary device cannot be mounted in the vicinity of the protruding portion 5, and space efficiency when mounting the wiring box body 1 is extremely poor.

In addition, a screw-type fusible link mounting housing
Since 3a is arranged so as to be inclined with respect to the wiring box body 1,
The fusible link 8 requires a large mounting space, which causes a problem that the wiring box main body 1 is increased in size.

The present invention has been made in view of the above-mentioned points, and provides a screw-type fusible link mounting structure capable of downsizing a wiring box body and easily performing wiring connection work even in a small space. The purpose is to do.

[Means for solving the problem]

In order to achieve the above object, the present invention inserts a fusible link into a fusible link mounting housing of a wiring box body, and fastens a leg of the fusible link and a terminal of a predetermined wiring with a bolt. In the mounting structure of the screw-type fusible link to be connected, the fusible link mounting housing is formed separately from the wiring box body,
An opening for receiving the fusible link mounting housing is formed by cutting out from the side wall to the upper wall of the wiring box body,
A fixing frame body is provided upright at the end edge of the opening on the side wall side, a locking portion for the fixing frame body is provided in the fusible link mounting housing, and the fusible link is horizontally inserted into the fusible link. It is characterized in that the bull link mounting housing can be horizontally inserted from the side opening of the fixing frame into the opening of the wiring box body.

[Action]

According to the present invention, the fusible link is horizontally mounted on the screw-type fusible link mounting housing arranged in the main body of the wiring box, and the terminals of the predetermined wiring are tightened by the bolts. Since the bull links and terminals are connected to each other and it is not necessary to tighten the bolts from the side of the wiring box body, mount the wiring box body on a vehicle, etc., and install auxiliary equipment around the wiring box body. Even when they are arranged, at least a work space in one direction can be secured, the space efficiency at the time of mounting can be remarkably improved, and the wiring connection work can be easily performed. Furthermore, since the wiring is pulled out along the wiring box body, the wiring does not project from the lower side of the wiring box body, and the space in the height direction can be reduced.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

FIGS. 1 to 3 show an embodiment of a wiring box to which a screw-type fusible link according to the present invention is mounted. The upper surface of the wiring box body 1 has a plurality of relay mounting housings 2 and a plurality of relay mounting housings 2. Fusible link mounting housing 3
The fusible link mounting housing 3 includes a screw-type fusible link mounting housing 3a and a terminal fitting type fusible link mounting housing 3b.

Further, in this embodiment, as shown in FIG. 2, a tightening opening 13 and a terminal opening 14 are provided at the corners of the wiring box main body 1, respectively.
In the part, a fixing frame body 15 that opens to the side of the wiring box body 1
Are integrally fixed. Inside the fixing frame body 15, the screw-type fusible link mounting housing 3a is mounted.
Is inserted so that its insertion surface is located laterally,
By engaging projections (locking portions) 16 projectingly formed on both side surfaces of the screw-type fusible link mounting housing 3a with the edge portions of the fixing frame body 15, the screw-type fusible The link mounting housing 3a is fixed to the inside of the fixing frame body 15.

In addition, each foot of the screw-type fusible link 8 is provided inside the housing 3a for mounting the screw-type fusible link.
A partition plate 17 for partitioning 9a and 9b is arranged in the lateral direction,
The screw holes 10a, 1 of the legs 9a, 9b on the upper and lower surfaces of the partition plate 17
Nut members 6a and 6b are fixed to the positions corresponding to 0b, respectively.

Further, on the lower surface side of the wiring box main body 1, one end 7b has the terminal fitting type fusible link mounting housing.
A chain terminal 7 branched to 3b is provided, and the other end 7a of the chain terminal 7 is bent in a crank shape and extends from the terminal opening 14 to the upper surface side of the wiring box body 1, It is arranged in the upper nut member 6a.

 Next, the operation of this embodiment will be described.

In this embodiment, the screw-type fusible link mounting housing 3a is mounted with the screw-type fusible link 8 such that its legs 9a and 9b are located above and below the partition plate 17. Then, with the screw hole 10a of the upper leg portion 9a aligned with the upper nut member 6a of the partition plate 17, the bolt 12 is screwed into the nut member 6a via the chain terminal 7 to form the foot portion. 9a and the chain terminal 7 are connected to each other. Further, with the screw hole 10b of the lower leg portion 9b aligned with the lower nut member 6b of the partition plate 17, from the lower side of the wiring box body 1 together with the round terminal 11 of the wiring connected to the load side. By screwing the bolt 12 into the nut member 6b, the foot portion 9b and the round terminal 11 are connected to each other.

Therefore, in this embodiment, since the bolts 12 can be tightened from the upper and lower direction of the wiring box body 1, the wiring box body 1 is mounted on a vehicle or the like and the wiring box body 1 is supplemented around the wiring box body 1. Even if the vessels etc. are arranged,
At least, a work space in one direction can be secured, the space efficiency at the time of mounting can be remarkably improved, and the wiring connection work can be easily performed. Further, since the wiring is pulled out along the wiring box body 1, the wiring does not project from the lower side of the wiring box body 1, and the space in the height direction can be reduced. Further, since the screw-type fusible link mounting housing 3a is arranged along the corner of the wiring box body 1, the mounting space of the screw-type fusible link mounting housing 3a is small, and the wiring box body 1 The size can be reduced.

[Effect of device]

As described above, in the mounting structure of the screw-type fusible link according to the present invention, the terminal of the predetermined wiring is bolted with the fusible link horizontally mounted in the screw-type fusible link mounting housing. Since the connection is done by tightening and it is not necessary to perform the bolt tightening work from the side of the wiring box body, if the wiring box body is mounted on a vehicle, etc., and accessories are placed around the wiring box body. However, at least a work space in one direction can be secured, the space efficiency at the time of mounting can be significantly improved, and the wiring connection work can be easily performed. Further, since the wiring is pulled out along the wiring box main body, the wiring does not project from the lower side of the wiring box main body, and there is an effect that the space in the height direction is small.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of a part of FIG. 1, FIG. 3 is a longitudinal sectional view of a fusible link portion, and FIG. 4 is a conventional wiring. FIG. 5 is a perspective view showing the box body, FIG. 5 is a longitudinal sectional view of a fusible link portion, and FIG. 6 is a perspective view of the fusible link. 1 ... Wiring box body, 3 ... Fusible link mounting housing, 6 ... Nut member, 8 ... Fusible link, 9 ... Foot, 10 ... Screw hole, 11 ... Round terminal, 12 …
… Bolts, 13 …… tightening openings, 14 …… terminal openings, 15
…… Fixing frame, 17 …… Partition plate.

Claims (1)

(57) [Scope of utility model registration request] 1. A screw-type fusible in which a fusible link is inserted into a fusible link mounting housing of a wiring box main body, and a foot portion of the fusible link and a terminal of a predetermined wiring are tightened and connected by bolts. In the link mounting structure, the fusible link mounting housing is formed separately from the wiring box body, and an opening into which the fusible link mounting housing is inserted is cut out from a side wall to an upper wall of the wiring box body. The fixing frame is erected on the edge of the opening on the side wall side, the housing for mounting the fusible link is provided with a locking portion for the fixing frame, and the fusible link is inserted horizontally. The fusible link mounting housing thus mounted can be horizontally inserted into the opening of the wiring box main body from the side opening of the fixing frame body. Mounting structure of the clause.