JPH0438446Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fuse attachment mechanism for attaching a slow blow fuse of a relay box mainly used in automobiles and the like.

[Prior Art] Slow-blow fuses conventionally used for wiring inside automobiles are usually connected to electric wires by bolting, rather than by inserting connectors, because a relatively large current flows through them. It is.
In order to fix this slow-blow fuse in an automotive relay box, a method is adopted, for example, in which a fuse block incorporating a slow-blow fuse with an electric wire bolted to a terminal is fitted into the relay box. Therefore, this fuse block not only requires extra space and cost, but also has the drawback that when the slow blow fuse breaks, it requires considerable effort to replace it.

[Purpose of the invention] The purpose of the invention is to make it possible to incorporate a slow blow fuse without using a fuse block by utilizing the corner space inside the relay box, and to easily remove and install it from the outside. It is an object of the present invention to provide a fuse mounting mechanism for a relay box.

[Summary of the invention] The gist of the invention to achieve the above objectives is as follows:
Two mounting bolts that tighten the two insertion terminals of the slow-blow fuse and the connection terminals connected to these move forward and backward under the guide frame for inserting the slow-blow fuse, which is provided at a corner in the relay box. the direction of the corner 2 forming the corner portion;
This fuse mounting mechanism for a relay box is characterized in that the fuse mounting mechanism is formed at an angle of approximately 45 degrees with respect to the two side walls, and windows are provided in these two side walls for inserting the mounting bolts.

[Embodiments of the invention] The invention will be described in detail based on illustrated embodiments.

Figures 1 to 3 show a box-shaped relay box 1 that accommodates a large number of connection terminals.
A slow blow fuse 2 is removably incorporated into the. That is, a guide frame part 3 for inserting the slow blow fuse 2 is provided integrally with the relay box 1 at a corner part A of the relay box 1 formed of an insulating material such as a synthetic resin, and this guide frame part The side wall 3 is oriented at approximately 45 degrees to the side walls 1a and 1b of the relay box.

Below the guide frame part 3, two nuts 5a,
5b is stored. These nuts 5a, 5
b is fixed unrotatably, and nuts 5a, 5
Bus bar terminals 6a, 6b connected to the insertion terminals 2a, 2b of the slow blow fuse 2 are located on the outside of b.
are arranged, and insertion terminals 2a, 2b are inserted between each nut 5a, 5b and bus bar terminals 6a, 6b. Then, the busbar terminals 6a, 6b are inserted into the busbar terminals 6a, 6b by means of mounting bolts 7a, 7b screwed into the nuts 5a, 5b, respectively, through the through holes drilled in each busbar terminal 6a, 6b and the insertion terminals 2a, 2b. The terminals 2a and 2b are
They are each tightened and electrically connected via washers 8.

The direction of movement of the two mounting bolts 7a and 7b is as follows:
Side wall 1 forming corner A of relay box 1
The angle is approximately 45 degrees with respect to a and 1b, and side wall 1
Mounting bolts 7a, 7b are inserted into a, 1b respectively, and windows 9a, 9 are provided for inserting a driver.
b is open. Also, as shown in Figure 5,
The lid 10 attached to the relay box 1 has an extending portion 11 for closing the windows 9a and 9b.
are protruding from the side walls 1a and 1b of the relay box 1.
A recessed groove portion 12 for guiding and holding the edge of the extending portion 11 is formed in the groove portion 12 .

In the above configuration, if the slow blow fuse 2 breaks and needs to be replaced, the lid body 10
, insert a screwdriver through the windows 9a, 9b, twist and remove the mounting bolts 7a, 7b, and then the slow blow fuse 2 can be pulled upward as it is. When installing a new slow-blow fuse 2 as a replacement, insert the slow-blow fuse 2 into the guide frame 3 so that the through holes provided in the insertion terminals 2a, 2b can be inserted into the respective nuts 5a, 5b and Busbar terminals 6a, 6b
Since it is positioned to match the through hole of
Install the mounting bolts 7a and 7b with nuts 5a and 7b, respectively.
5b, the insertion terminals 2a, 2b and the busbar terminals 6a, 6b are tightened and electrically connected.

[Effects of the invention] As explained above, the fuse mounting mechanism of the relay box according to the invention makes use of the corner space inside the relay box to allow the slow-blow fuse to be removably installed. This eliminates the need for a separate fuse block, which saves space and cost for installing a slow blow fuse. Also,
The direction of movement of the two mounting bolts that secure the slow-blow fuse is approximately 45 degrees to the side wall that forms the corner, so insert a screwdriver through the window in the side wall to tighten the slow-blow fuse. It becomes possible to easily perform removal and installation.

[Brief explanation of the drawing]

The drawings show an embodiment of the fuse mounting mechanism of the relay box according to the present invention, in which Fig. 1 is a plan view of the relay box, Fig. 2 is a front view thereof, Fig. 3 is a left side view, and Fig. 4 is a main view. A partial sectional view and FIG. 5 are perspective views of the lid body. Code 1 is the relay box, 1a and 1b are the side walls,
2 is a slow blow fuse, 3 is a guide frame portion, 4 is an insulating wall, 5a, 5b are nuts, 6a, 6b are bus bar terminals, 7a, 7b are mounting bolts, 9a, 9
b is a window portion, 10 is a lid body, 11 is an extension portion, and 12 is a groove portion.

Claims (1)

[Claims for Utility Model Registration] 1. Two insertion terminals of the slow-blow fuse and a connection terminal connected thereto below a guide frame for inserting the slow-blow fuse provided at a corner in the relay box. The advancing and retreating directions of the two mounting bolts that tighten the
2. A fuse mounting mechanism for a relay box, characterized in that the angle of the fuse is set at an angle of 100 degrees, and windows for inserting the mounting bolts are provided in these two side walls. 2. A fuse mounting mechanism for a relay box according to claim 1, wherein a nut screwed into the mounting bolt is fixed in advance below the guide frame. 3. The relay box fuse attachment mechanism according to claim 1, wherein the lid of the relay box is provided with an extension that closes the window.