JP2910550B2 - Mini fuse cassette - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mini-fuse cassette, and more particularly, to a mini-fuse mounted thereon to form a circuit including a mini-fuse. The present invention relates to a mini fuse cassette that can be mounted on a panel.

[0002]

2. Description of the Related Art In recent years, circuits for electric equipment of automobiles have
A small fuse (mini fuse 1) as shown in FIG. 8 is used. In the mini-fuse 1, a fusing portion 3 is insert-molded in a synthetic resin base 2, and a pair of terminal plates 4A and 4B connected to the fusing portion 3 protrude outside the base 2. Also, on both sides of the base 2,
Each has a pair of concave grooves 5a and 5b. The dimensions of the base 2 of the mini fuse 1 are about 9 mm in length, about 11 mm in width, and about 4 mm in thickness.

The above mini-fuse is shown in FIGS. 9A and 9B.
As shown in FIG. 1, a bus bar (shown in FIG. 1) mounted on a mini-fuse mounting portion 9 formed integrally with a casing 8 of an electric connection box such as a junction box or a relay box, and having terminal plates 4A and 4B housed in the electric connection box. ), Etc., so that they are incorporated in the circuit. The mini-fuse mounting portion 9 has an insertion hole 10 for inserting the terminal plates 4A and 4B.
Lock projections 11A and 11B are provided on both sides of the mini-fuse 1 to lock the base 2 of the mini fuse 1 by the lock projections 11A and 11B.

The minifuse 1 mounted on the minifuse mounting section 9 is removed using a fuse puller 13 as shown in FIG. This fuse puller 13
A pair of projections 13 is provided on the other end of a pair of arms 13b and 13c, one end of which is connected by a connection 13a.
d, 13e. When the mini-fuse 1 is removed, the projections 13d and 13e are connected to the base 2 of the mini-fuse 1.
The base 2 is sandwiched between the arm portions 13a and 13b so as to engage with the concave grooves 5a and 5b provided on both sides of the mini-fuse, and is pulled out from the mini-fuse mounting portion 9.

[0005]

However, when the mini-fuse mounting portion 9 is provided integrally with the casing 8 of the electric connection box as described above, only a limited number of mini-fuses can be connected. It is not possible to cope with a case where a circuit including a mini-fuse is further required due to differences in vehicle types, specifications, and the like.

Conventionally, a fuse puller is mounted at or near one of a plurality of electrical junction boxes (usually near a main junction box or relay box), and each time a fuse is extracted, the fuse puller is removed. , It was necessary to go to the place of attachment, and the work was complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and enables an additional circuit (optional circuit) including a mini-fuse to be added as needed when a vehicle type or specification is different. In addition, the purpose of the present invention is to improve the workability of the operation of extracting the fuse.

[0008]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a first aspect of the present invention, wherein a mounting portion which can be locked to an electric connection box is projected from one side of a housing provided with a mini-fuse mounting portion.
A fuse puller mounting portion for detachably mounting a fuse puller for a mini-fuse is protruded on the other side surface of the housing. The mounting portion protrudes from a side surface of the housing and has an L-shaped guide portion, and the guide portion. A connecting portion connecting the upper portion of the connecting portion, a locking piece protruding from the connecting portion, and a locking projection provided at a tip of the locking piece, and the shape of the mounting portion is inserted into a through hole of a vehicle body panel. The present invention provides a mini-use cassette characterized in that it has a configuration in which a locking clamp is attached and is configured to be selectively attachable to the electric junction box or the vehicle body panel.

[0009]

The mini-fuse cassette according to the first aspect of the present invention has a housing mounted on an electric connection box such as a junction box or a relay box, or a mounting portion provided on a member to be mounted such as a clamp member for connecting a junction connector or the like to a vehicle body panel. Can be attached to an electric connection box or the like by locking the attachment portion provided in the vehicle, a circuit including a mini-fuse can be added as necessary according to the type and specification of the vehicle.

In the mini-fuse cassette according to the first aspect, the work of removing the mini-fuse mounted on the mini-fuse mounting portion can be performed by the fuse puller mounted on the fuse puller mounting portion.

[0011]

Next, the present invention will be described in detail with reference to the embodiments shown in the drawings. A mini-fuse cassette 15 according to an embodiment of the present invention shown in FIGS. 1 to 3 has a housing 16 having a rectangular cross section and two mini-fuse mounting portions 17A,
17B is provided. In addition, the mounting portion 18 is provided on one side surface 16a of the housing 16 and the other side surface 1a is provided.
6b, a fuse puller mounting portion 19 is provided.

The mini-fuse mounting portions 17A and 17B
Penetrates the housing 16 in the up-down direction of FIG.
Insert holes 20a and 20b for inserting terminal plates 4A and 4B (see FIG. 8) of the mini-fuse 1 are provided. In addition, insertion holes 20 are provided above the mini-fuse mounting portions 17A and 17B.
press-fit pieces 21a, 21 opposing each other with the width a, 20b sandwiched in the width direction.
1b is provided. The distance between the press-fit pieces 21a and 21b is set to be substantially equal to the thickness of the base 2 of the mini fuse 1. On the other hand, terminals (not shown) connected to electric wires connected to other electrical components are mounted below the mini-fuse mounting portions 17A and 17B.

The mini-fuse 1 mounted on the mini-fuse mounting portions 17A, 17B is inserted from above so that the terminal plates 4A, 4B are inserted into the insertion holes 20a, 20b, respectively. It is fixed by press-fitting between 21a and 21b. In this state, the respective terminal boards 4A and 4B are connected to the above-mentioned terminals (not shown).

The mounting portion 18 is provided on the side surface 16 of the housing 16.
a guide portions 22A and 22B having an L-shaped cross-section and extending in the vertical direction, a connecting portion 23 connecting above the guide portions 22A and 22B, and a lock piece 24 protruding downward from a central portion of the connecting portion 23. It has. A lock projection 24a is provided at the tip of the lock piece 24. This mounting part 18
As described later, the lock piece 24 is connected to a casing 3 of an electric connection box such as a junction box or a relay box.
0, and the mounting portion 4 of the clamp member 40.
By being engaged with the lock frame portion 34 provided in the casing 4, the casing 30 and the mounting portions 31 and 44 of the clamp member 40 are locked.

The fuse puller mounting portion 19 has first to third outer walls 26a, 26b,
26c is provided in a U-shape, and the first outer wall 2
A partition wall 27 is provided to partition between the outer wall 6a and the third outer wall 26c. Between the first side wall 26a and the partition wall 27 and the third side wall 2
6c and the partition wall 27, insertion holes 28 into which the arm portions 13b and 13c of the mini fuse puller 13 are inserted.
a, 28b are formed. The partition wall 27 has inclined surfaces 27a and 27b on the upper side in the figure, and claws 13d and 13e of the arm portions 13b and 13c of the fuse puller 13 on the lower side.
Are locking portions 27c and 27d.

In this fuse puller mounting portion 19, the respective arm portions 13b and 13c are inserted into insertion holes 28a and 28b, respectively.
When the fuse puller 13 is inserted so as to be inserted into the arm, the claws 13d and 13e come into contact with the inclined surfaces 27a and 27b, and the arms 13b and 13c expand outward with the connecting portion 13a as a fulcrum. When the claw portions 13d and 13e get over the partition wall 27, the interval between the arm portions 13b and 13c is reduced, and the claw portions 13d and 13e are locked by the locking portions 27c and 27d. Is held within.

On the other hand, when taking out the fuse puller 13 from the fuse puller mounting portion 19, the arm portion 13d,
What is necessary is just to pinch the upper end of 13e, expand the space | interval between the claw parts 13d and 13e, and pull out.

As described above, since the mini-fuse cassette 15 of this embodiment is provided with the fuse puller mounting portion 19 for detachably mounting the mini-fuse fuse puller 13, the mini-fuse 1 mounted on the mini-fuse cassette 15 is provided. If you need to remove the fuse puller 1
3 can be promptly taken out to perform the extraction operation, and the workability of the extraction operation can be improved.

The mini-fuse cassette 15 of the present embodiment having the above structure is fixed to a mounting portion 31 provided on the outer periphery of a casing 30 of an electric connection box such as a junction box or a relay box as shown in FIGS. Is done.

The mounting portion 31 provided on the casing 30 of the electric junction box has parallel guide plate portions 32A and 32B extending in the vertical direction in the figure and projecting portions 33A and 33B protruding from the outer surface of the casing 30. The first portion 34a extending in the width direction in the drawing and the first and second portions 34b in the vertical direction are provided at the distal ends of the protruding portions 33A and 33B.
34c is provided with a U-shaped lock frame portion 34c,
The lower end surface of the first portion 34a of the lock frame 34 in the drawing constitutes a lock surface 34d.

When mounting the mini-fuse cassette 15, the mounting portion 17 of the mini-fuse cassette 15 is inserted into the mounting portion 31 of the casing 30, as shown by an arrow A in FIG. At this time, the guide portions 22A and 22B of the mounting portion 18 of the mini-fuse cassette 15 are
A, 32B and second portions 34b, 34c of lock frame 34
Between the two. Mini fuse cassette 15
The lock piece 24 goes over the first portion 34a of the lock frame portion 34, the lock projection 24a engages with the lock surface 34d, and the mini-fuse cassette 15 is fixed to the casing 30.

When it is necessary to increase the number of circuits including mini-fuses due to differences in vehicle types and specifications, the mini-fuse cassette is mounted on the mounting portion 31 provided outside the electric connection box such as a junction box or a relay box as described above. Fifteen
Is attached, and the degree of freedom in responding to circuit design changes is improved.

If the structure and dimensions of the mounting portion 18 of the mini-fuse cassette 15 are the same as those of the mounting portion 37 of the well-known junction connector 36 as shown in FIG. The junction connector 36 and the mini-fuse cassette 15 of this embodiment can be freely selected and mounted on the mounting portion 31 provided in the electric connection box, and the degree of freedom in circuit design change and the like can be further improved. . The junction connector 36
Is for fitting a male connector 36B connected to an electric wire 38 into a female connector 36A accommodating a bus zoom (not shown) constituting a branch circuit.
Is provided with a mounting portion 37.

The mini-fuse cassette 1 of this embodiment
5 can be fixed to the through-hole 41a provided in the vehicle body panel 41 by using the known clamp member 40 shown in FIG.

The clamp member 40 has a mounting portion 44 on one side of the base 43 and a clamp portion 45 on the other side for mounting in the through hole 41a.

The mounting portion 44 has the same shape as the mounting portion 31 provided on the casing 30 of the electric junction box, and the same elements are denoted by the same reference numerals.

On the other hand, the clamp portion 45 has a shaft portion 46 projecting from the base portion 43, and a barbed insertion portion 47 is provided at the tip of the shaft portion 46. Also, the clamp part 40
A plurality of arms 48 project radially from the base 43 and have a spherical portion 48a at the tip.

The mini fuse cassette 15 is mounted on the vehicle body panel 4.
In the case of mounting to the mini fuse cassette 15, first, the mounting portion 44 of the clamp member 40 is locked to the mounting portion 18 of the mini fuse cassette 15, and the clamp member 40 is fixed to the mini fuse cassette 15.
Are attached together. Next, the insertion portion 4 of the clamp member 40
7 is inserted into the through hole 41 a of the vehicle body panel 41. Spherical part 4 provided at the rear end part 47a of the insertion part 47 and the front end of the arm part 48
8a is clamped between the body panel 41 and the clamp member 40 to which the mini fuse cassette 15 is attached.
Fixed to 1.

In this case, the mounting portion 18 of the mini fuse cassette 15 is connected to the junction connector 3 shown in FIG.
By setting the same structure and dimensions as the mounting portion 37 of No. 6, the clamp member 40 can be shared between the mini-fuse cassette 15 and the junction connector 36, and the cost can be reduced.

It should be noted that the present invention is not limited to the above embodiment, and various modifications are possible. For example, in the above embodiment, the fuse puller mounting portion 19 is
6 is provided on one side surface 16b, but is provided on the other side surface 16b.
A fuse puller mounting portion 19 may be provided at c and 16d. If three types of mini-fuse cassettes 15 are provided on the side surfaces 16b, 16c, and 16d for mounting positions of the fuse puller mounting portion 19, the fuse puller 13 can be easily taken out according to the location where the mini-fuse cassette 15 is mounted. By attaching the one provided with the fuse puller mounting portion 19 at the position, the workability of extracting the mini fuse 1 can be further improved.

[0031]

As is apparent from the above description, the mini-fuse cassette according to the first aspect of the present invention includes an electric connection box such as a junction box and a relay box, and a clamp member for connecting a junction connector and the like to a vehicle body panel. By locking the mounting portion provided on the housing to the mounting portion provided on the mounted member, the mounting member can be mounted on an electric connection box or the like. Therefore, if it is necessary to increase the number of circuits including mini fuses depending on the type of vehicle, specifications, etc.,
By attaching this mini-fuse cassette to an electric junction box or a vehicle body panel, a circuit including a mini-fuse can be formed, and the degree of freedom in circuit design change and the like can be improved.

The mini-fuse cassette according to the first aspect of the present invention includes a fuse puller mounting portion for detachably mounting a fuse puller. Therefore, when the mini-fuse mounted on the mini-fuse mounting portion is removed, the fuse puller is removed. The mini-fuse can be quickly removed using the fuse puller attached to the mounting section, eliminating the need to go to another location for the fuse puller each time the mini-fuse is removed. Can be.

[Brief description of the drawings]

1A is a front view showing a mini fuse according to an embodiment of the present invention, FIG. 1B is a plan view of FIG. 1A, and FIG. 1C is a plan view of FIG.

FIG. 2 is a partial schematic cross-sectional view taken along line II-II of FIG.

FIG. 3 is a partial schematic cross-sectional view taken along line III-III of FIG.

FIG. 4 is a partial schematic view showing a mounting portion provided on a casing of the electric junction box.

FIG. 5 is a partial schematic cross-sectional view taken along line VV of FIG.

FIG. 6 is a schematic perspective view showing a junction connector.

FIG. 7A is a plan view showing a clamp member, and FIG.
FIG. 2 is a front view of FIG.

FIG. 8A is a front view showing a mini fuse, and FIG.
3 is a left side view of FIG.

FIG. 9 (A) is a front view showing a mini-fuse mounting portion provided on a casing of a conventional electric junction box, and FIG. 9 (B) is (A)
It is sectional drawing in the line of IX-IX of FIG.

FIG. 10 is a perspective view showing a mini fuse puller.

[Explanation of symbols]

 1 Mini Fuse 13 Fuse Puller 15 Mini Fuse Cassette 16 Housing 17A, 17B Mini Fuse Mounting Portion 18 Mounting Portion 19 Fuse Puller Mounting Portion 27 Partition Wall

Claims (1)

(57) [Claims] 1. A housing provided with a mini-fuse mounting part.
At one side, a mounting part that can be locked to the electric junction box is projected
At the same time, the other side of the housing
Fuse puller for detachable fuse puller
The mounting part protrudes from the side of the housing.
A guide section having an L-shaped cross section and an upper portion of the guide section are connected.
A connecting portion to be connected, a lock piece protruding from the connecting portion,
And a locking projection provided at the tip of the locking piece.
The shape of the mounting part is inserted and locked in the through hole of the vehicle body panel
It has a shape to which a clamp can be attached, and has the above electrical connection box
Or a structure that can be selectively attached to the body panel.
A mini use cassette characterized by the following .