JPS5829888Y2 - Fuse box structure - Google Patents

Description

[Detailed description of the invention] This invention relates to a fuse box structure in which a plug-in fuse, in which a fuse element with a stamped fuse strip is integrally attached to a housing, is removably set in a fuse block. A fuse box that can be opened and closed by having a cover with a snot that engages with the head flange of a plug-in fuse set in the block and a retaining part that corresponds to a locking part at the side end of the fuse block. It is related to the structure.

Traditionally, fuse assemblies are one of the safety devices for electrical equipment, but conventional glass tube fuses are large and occupy a large space, making it difficult to install them in narrow spaces such as the engine room of a car. There are some drawbacks, the number of clamp parts is large, and the cost is high.
It had the disadvantage that it was difficult to install and remove, and it also had the disadvantage of shorting out.

To deal with this, recently a pair of panel-shaped conductive metal fuse elements 1, 1 are stamped with a fuse strip 2, and the fuse 2 is installed in a housing 4 having a head flange 3, as shown in FIG. An integrated so-called plug-in fuse 5 was developed, formed into an extremely mini-sized and compact chip, and used as a clip terminal connector 7.7 of a fuse block 6 as shown in FIG.・
Fuse assemblies that can be inserted and integrated into

Therefore, it occupies a small space, a large number of fuses can be set, the monitor circuit can be made independent, it is useful for weight reduction, it is safe, does not cause short circuits, and has the excellent advantages of reducing costs by not requiring terminals. It is becoming popular rapidly.

However, although it has the above-mentioned excellent advantages, it has come to cause the following problems.

That is, since the plug-in fuse 5 is extremely mini-sized, once it is set and fitted into the fuse block 6, the fitting is held fairly firmly in order to maintain the set state. Plug-in fuse 5
Since the head flange 3 of the fuse block 6 is tightly connected to the clip terminal connector 7 of the fuse block 6, there is a problem in that it is extremely difficult to replace the fuse 2 due to breakage, or to remove it for checking at the start of work. ,
In particular, it is extremely painful to pull it out with your fingertips, such as during rainy weather or winter, and in some cases it is impossible.

Furthermore, a plug-in fuse 5 is provided for removal with fingertips.
The large distance between them has the disadvantage of restricting size reduction, and also makes it impossible to create mini-sized plug-in fuses that can be held together with a fingertip.

The purpose of this invention was to solve the problems with the newly developed plug-in fuse mentioned above, by interposing a cover on the set face of the fuse block, and attaching the plug-in fuse to the fuse block through the slit of the cover. It is an object of the present invention to provide an excellent fuse box structure that can be set and removed with a single touch and can fully utilize the advantages of the plug-in fuse.

The structure of this invention in accordance with the above purpose is that a cover is interposed on the setting surface of the fuse block, and the retaining part is engaged with the side end locking part of the fuse block to fix it, and in this state, the plug is plugged. Each of the plug-in fuses is fitted into the clip terminal connector of the fuse block through a slit made in the cover, and at this time, the head flange of the plug-in fuse is placed on the slit and in surface contact with the cover. When inspecting, replacing, etc., by opening the cover from the fuse block, the plug-in fuse can be pulled out with a single touch, which not only improves operability, but also reduces size, makes it more compact, and makes the circuit independent. The gist of this is that it was designed to be planned.

Next, an embodiment of this invention will be described below based on the drawings from FIG. 3 onwards.

Note that parts having the same features as those in FIGS. 1 and 2 will be described with the same reference numerals.

Of course, there may be differences in design such as size.

In the embodiment shown in Figures 3a to 3e, the plug-in fuse 5 is substantially the same as the new development shown in Figure 1 above, with a fuse strip 2 stamped on a pair of fuse elements 1,1. The fuse block 6 also serves as a fuse holder and is connected to each clip terminal connector and terminal electrical components via lead wires (not shown).

Accordingly, as an embodiment, it is installed in a predetermined part of the engine room of a car, and is used as a headlamp, side flasher, etc.
This fuse set is compatible with electrical components such as lamps and room lamps.

An elbow type racket 8 is fixed to one end of the fuse block 6 in the longitudinal direction, and a hook 9 as a locking portion is protruded from the other side.

On the other hand, a panel-shaped cover 10 having an area slightly larger than the area of the upper surface of the fuse block 6 has one end connected to the hinge 11.
It is rotatably supported on the upper end of the bracket 8 via the bracket 8, and the other end is provided with a hook 12 as a retaining portion so as to be able to be engaged with the hook 9, and a handle portion 13.

Further, as shown in FIG. 3a, the housing 4 of each plug-in fuse 5 can be inserted into the cover 10 at a portion corresponding to the clip terminal connector that faces the fuse block 6 in the closed state, and the head flange 3 is inserted into the cover 10. A locking slit 14, 14, . . . is provided.

As shown in FIG. 3e, the housing 4 of the plug-in fuse 5 has a slight clearance with respect to the slit 14, so that the plug-in fuse 5 can be easily removed from the cover 10.

In the above configuration, the cover 10 is closed to the fuse block 6 via the hinge 11 of the bracket 8, and the hook 12 of the handle portion 13 at the end is connected to the hook 9 of the fuse block 6. It locks using elasticity.

Then, connect the plug-in fuse 5゜5... marked with the corresponding amperage to each of the sleeves) 14.14... to its fuse element 1, 1...・
, insert the housing 4゜4... and attach the head flanges 3, 3... to the sleeve) 14.
If you press strongly on the edge of the housing 4
, 4... is the clip terminal connector 7゜7...
Insert it into... and tighten it.

In the embodiments shown in Figures 31.3d and 36, clearance is provided between the clip terminal connector 7, the cover 10, and the head flange 3 of the plug-in fuse 5 for convenience of illustration. There may be such a clearance, but they may be brought into close contact with each other so that there is no such clearance.

Therefore, when replacing the plug-in fuse 5 in the event of a fuse breakage, or when checking the fuse at the time of initial inspection, the cover 1 is changed from the state shown in Figure 3a to the state shown in Figure 3C.
Open the handle part 13 of 0 outward using its elasticity,
When the hooks 12 and 9 are released and the handle portion 13 is released from the fuse block 6 via the hinge 11 as shown by the arrow, the sleeve of the cover 10).14.
Head flanges 3, 3 that lock onto the edges of 14...
Plug-in fuses 5, 5 through the engagement of...
When it is pulled out to a predetermined height, it is easy to inspect it closely to see if there is any breakage in the fuses 2, 2, etc., and then pull it out with your fingers or tweezers. In case of replacement, pull out the plug-in fuse 5 from the cover 10, insert a new plug-in fuse 5, and then check the plug-in fuse 5.
, 5... as appropriate, clip the terminal connector 7.7
..., the cover 10 is simultaneously closed through the pushing operation, and the hook parts 12 and 9 are engaged through the handle part 13 to complete the reset in one touch.

In the embodiments shown in FIGS. 4a, 4b, and 4c, the cover 10' is of a removable type without hinge engagement, has both handle portions 13, 13, and hooks 12 on both sides.
, 9° 12.9 engagement type, one handle part 13 is released and the hooks 12, 9 are released to the extent of inclination, and the plug-in fuses 5, 5...
... may be pulled out, or both handle portions 13 and 13 may be opened in parallel and pulled out.

Of course, the reset after checking may be done in the same manner as in the previous embodiment.

Although the embodiment shown in FIG. 5 is a hingeless type, the fuse block 6 is closed by engaging the hook 12' of the cover 10'' with the hook 9 at one end of the fuse block 6. In this embodiment, it can be opened and closed freely, and it can also be attached and detached.

Furthermore, the embodiment shown in FIG. 6 is a twin type of the embodiments shown in FIGS. 3a to 3e, and is suitable for a large-scale integrated fuse box. The covers 10"', 10"' can be opened and closed freely.

Therefore, it is not necessary to increase the amount of opening/closing inclination of the cover 10'' for a large-sized fuse block 6.

As mentioned above, according to this invention, in a fuse box structure in which a plug-in fuse, in which a mini-sized fuse element and housing are integrated, is set in a fuse block, instead of the conventional glass tube-in-type fuse,
A locking portion is provided at the side end of the fuse block, and the end of the force bar also has an end portion that engages with the locking portion, and the head flange is locked to the cover and plugged in. By providing a slit through which the fuse element and housing of the fuse can be inserted, each plug-in fuse can be fitted and set into the clip terminal connector of the fuse block through the slit of the cover without any hindrance.
For replacement or inspection, each plug-in fuse can be easily pulled out from the clip terminal connector with one touch by removing the engaging part of the cover and opening it to the fuse block, so replacement and inspection can be done smoothly. .

Therefore, there is no need to directly grasp the head flange of each plug-in fuse with your fingertips, regardless of whether it is rainy or winter, and the pull-out operation can be performed quickly and easily with one touch.
This has the advantage of improving efficiency.

In addition, as mentioned above, the plug-in fuse can be easily pulled out, so the size of the head flange, that is, the plug-in fuse, is not affected. Therefore, the set interval for pinching with fingers can be narrowed, and the number of stacks can be increased. In addition, the plug-in fuse itself can be miniaturized, and the fuse block can be correspondingly miniaturized, resulting in lighter weight and independent fuse circuits for all electrical components. There are also benefits.

It goes without saying that this invention is not limited to automobiles.

[Brief explanation of drawings]

Fig. 1 is a partially sectional perspective view of a plug-in fuse, Fig. 2 is a side view of a fuse box based on the prior art, and Fig. 3a and subsequent figures are examples of this invention.
, 3B, 3C, and 3D are front, plan, open, and side views of one embodiment, respectively, and FIG. 3E is an FF cross-sectional view of FIG. 3B. Also, Figures 43.4b and 4c are plane views of another embodiment,
FIG. 5 is an explanatory front view of another embodiment, and FIG. 6 is an explanatory diagram of still another embodiment. 2...Fuse strip, 1...Fuse element, 4...Housing, 5...Plug-in fuse, 6...Fuse block ,9
...Locking part, 12'... Engagement part, 10
゜10', 10", 10"'...Cover, 3
・・・－・・・Head flange, 4・・・・・・Slit.

Claims (1)

[Scope of Claim for Utility Model Registration] A fuse box structure in which multiple units of plug-in fuses are set in a fuse block, including a fuse element provided with a fuse strip, a housing that integrates the fuse element downwardly, and a plurality of plug-in fuse units. A locking portion is attached to a side end of the block, and a cover having a retaining portion for the locking portion can be opened and closed with respect to the fuse block. The fuse box structure is characterized in that the cover is provided with a plurality of rows of insertion slits for locking the head flange of the housing of the plug-in fuse.