JP2949004B2 - Relay box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a relay box in which a relay, a fuse and the like can be housed integrally, and more particularly to a relay box in which a bus bar can be easily fixed.

[0002]

2. Description of the Related Art A relay box is often used for an automobile or the like which is limited in space because an efficient arrangement of relays and fuses is possible. Each of the relays and fuses is electrically connected to a battery or the like via the bus bar.

By the way, this type of relay box is usually mounted on an automobile with a plurality of relay boxes 50 housed in separate frames 60 as shown in FIG. The electrical connection is made as follows.

[0004] That is, as shown in FIGS. 12 and 13, a stud bolt 61 is erected on the frame body 60, and the stud bolt 61 is electrically connected to an electrical connection portion 52 of a bus bar 51 having insertion holes 53 and 72. And the terminal 71 of the connecting wire 70
The busbar 51 is fixed to the frame body 60 by tightening with a nut 62, and the busbar 51 and the connection wire 70 are electrically connected.

[0005]

In the case where the relay box is mounted alone on a vehicle, it is necessary to attach a stud bolt standing on the frame to the relay box itself.

However, the standing direction and position of the stud bolts are limited by the conditions on the vehicle, so that they cannot be set arbitrarily, and the insertion direction of the bus bar also takes into consideration the efficient arrangement of relays and the like. Then, there is a considerable limitation, and in some cases, the electrical connection of the bus bar cannot be set to the stud bolt with the bus bar inserted into the relay box body.

[0007] Therefore, an object of the present invention is to meet in- vehicle conditions.
Therefore, the stud bolt installation direction is
Even if it is restricted to the same direction as the
Formed with stud bolt inserted through electrical connection
It is an object of the present invention to provide a technology for easily realizing a relay box .

[0008]

In order to solve the above-mentioned problems, a relay box according to the present invention extends in a predetermined direction.
Terminal group to be installed and a direction orthogonal to the extension direction of the terminal group
A bar formed integrally with a bent electrical connection
Box body with subbar, socket and opening
And for connecting the electrical connection to another electrical circuit.
A stud bolt is erected, and the box body is
And a supporting member formed separately.
The bus bar extends in a direction in which the terminal group extends.
By inserting it into the box body along
The child group is accommodated in the socket, and the stud bolt is
In the same direction as the insertion direction of the bus bar.
At the opening, the electric power is supplied from inside the box body.
The support member is inserted into the hole of the
By attaching to the inner side of the
Is fixed to the box body.

[0009]

[Action] configured relay box odor as described above
The bus bar along the extension direction of the terminal
Terminals housed inside socket by inserting into body
And insert the stud bolt in the same direction as the busbar insertion direction.
At the opening, apply power from inside the box body
Insert the support member into the box body
By attaching the busbar to the box,
It is fixed to the main body, and the electrical connection portion is fixed and connected together with terminals such as a power cable by tightening with a nut.

[0010]

Embodiments will be described below with reference to the drawings. As shown in FIG. 1, the relay box comprises a main body 1 and an upper cover 2 for waterproofing which is put on the upper part of the main body 1, both of which are formed of synthetic resin.

As shown in FIG. 2, the main body 1 includes a box main body 10, a bus bar 20 mounted on the box main body 10, and a bus bar 20 connected to the box main body 10.
And a supporting member 30 attached to the supporting member 30.

A protrusion 11 and a protrusion 12 are formed on the box main body 10. The fitting position of the upper cover 2 is regulated by the protrusion 11, and the hook 2a provided on the upper cover 2 is provided with the hook 2a. Protrusion 12
, The upper cover 2 is fixed to the box body 10.

The box body 10 is provided with sockets 13 and 14 for mounting fuses and fusible links on the upper surface thereof.
An opening 15 is formed between the openings 14.

Further, the box body 10 is provided on the outer surface of one side wall 16 with a fixing portion 17 for attaching the box body 10 to a substrate or the like of a vehicle body of the automobile. As shown in FIG. 3 and FIG. 4 (a), an elongated hole 17a for inserting a fastening bolt is formed, and the box body 10 is used for fastening the bolt.
Is temporarily provided on the substrate or the like.

The temporary fixing portion 17b is a protruding portion protruding from one end of the fixing portion 17 along the side wall 16 with the fixing portion 17 as a base end. 'Is located at the upper end of the substrate C
Is located below by the thickness of.

On the other hand, as shown in FIG. 4B, a board C to which the box body 10 is to be mounted has a fitting hole having a shape and a size substantially the same as those of the front end portion 17b 'of the temporary fixing portion 17b. c is formed, and the box main body 10 is temporarily fixed to the substrate C by the following operation.

That is, as shown in FIGS. 5 (a) to 5 (c),
Insert the front end portion 17b 'of the temporary fixing portion 17b from above into the insertion hole c.
When the box body 10 is slid to the tip side of the temporary fixing portion 17b, the upper end of the tip portion 17b 'contacts the lower surface of the substrate C, and the lower surface of the fixing portion 17 contacts the upper surface of the substrate C. The main body 10 is temporarily fixed on the substrate C.

In this state, since the fastening holes c 'for fastening bolts are formed at positions on the substrate C corresponding to the elongated holes 17a, the position can be adjusted without the operator particularly supporting the box body 10 by hand. The bolt can be easily tightened without shifting.

In this embodiment, as described above,
The fixing portion 17 plays the role of the base end portion of the temporary fixing portion 17b. However, when the temporary fixing portion is provided alone in the box body 10, a base end portion whose lower surface contacts the upper surface of the substrate C is separately provided. Need to be kept.

As shown in FIG. 6, an inverted U-shaped bolt holding member 18 is fixed to one end side of the box body 10, and a bolt 19 is inserted into a concave portion 18a of the bolt holding member 18. By press-fitting the base 19a, the bolt 19 is horizontally fixed with its tip facing outward.

The bus bar 20 is connected to each of the sockets 1.
For supplying power to the terminals 3 and 14, terminal groups 21 and 22 to be inserted into the sockets 13 and 14 are formed at the upper end thereof as shown in FIG. The bus bar 20 is used as an electrical connection for supplying power from a battery at a position corresponding to the opening 15 between the terminal groups 21 and 22 and also used for fixing the bus bar 20 itself. The bent piece 23 is provided with a hole 23a through which a stud bolt 31 for terminal connection, which will be described later, is inserted.

Further, at one end of the bus bar 20, a bent piece 24 is provided as an electrical connection for supplying power to another relay box, and the bent piece 24 is provided with a terminal connection. A U-shaped groove 24a for sandwiching the bolt 19 is formed.

The support member 30 is a synthetic resin block having a stud bolt 31 protruding from the upper surface thereof. As shown in FIG. It is attached to the inner side of the wall 16.

As shown in FIGS. 8 and 9, the fixing means 40 is provided with a locking portion 4 provided on the inner side of the side wall 16.
0a, and a locked portion 40b including a slider 41b and a projection 42b provided on the side surface of the support member 30.

As shown in FIG. 8, the locking portion 40a
A pair of slide guides 41a slidably supporting the slider 41b of the locking portion 40b, and an elastic piece 42a provided between the slide guides 41a and elastically deformable on the wall surface side. At the tip of 42a,
A step 43a is formed to engage with the projection 42b of the locking portion 40b.

Therefore, when the slider 41b is fitted into the slide guide 41a from below and the support member 30 is slid upward, the elastic piece 42a is deformed toward the wall surface by being pushed by the projection 42b of the locked portion 40b. Then, as shown in FIG. 9, the projection 42b engages with the step 43a at a predetermined position, and
0 is fixed to the side wall 16. In this state, as shown in the figure, the stud bolt 31 is inserted into the hole 23a of the bent piece 23 of the bus bar, so that the terminal a of the power cable A from the battery is further connected to the stud bolt 31. When the bus bar 20 is fixed to the box main body 10 via the support member 30 and is electrically connected to the battery, the bus bar 20 is fixed to the battery.

When the bus bar 20 is mounted and fixed to the box body 10 in this manner, as shown in FIG. 7A, the bolt 19 is inserted into the U-shaped groove 24a of the bent piece 24.
When the terminal b of the power supply cable B to another relay box is inserted into the bolt 19 and fastened by the nut 19b as shown in FIG. Power will also be supplied to other relay boxes via the relay box.

The upper cover 2 comprises a box body 1
Although the sockets 13 and 14 are covered with the upper surface of the box body 10 so as not to be wet by rain or the like, as described above, the power cable A is connected to the bus bar 20 at the central portion thereof. The entire upper surface of the box body 10 cannot be covered, and as shown in FIG. 1, the upper cover 2 itself has a missing portion 2b.

For this reason, as shown in FIG. 10, a sub-cover 3 made of polyvinyl chloride is separately prepared to fit into the notch 2b, and the power cable A is passed through the sub-cover 3, and the penetrating portion is taped. By stopping, the sub cover 3 is fixed to the power cable A, and the sub cover 3 covers the terminal connection portion of the power cable A.

As shown in FIG. 11, the water entering the upper part of the box body 10 along the surface of the sub-cover 3 flows out of the relay box through the rails 15a in the box body 10, as shown in FIG. ing. Above implementation
In the example, the bus bar 20 is extended from the terminal groups 21 and 22.
By inserting it into the box body 10 along the direction
The child groups 21 and 22 are housed inside the socket 13 and
Align bolts 31 in the same direction as busbar 20 insertion direction
The box body 10 at the opening 15
Inserted into the hole 23a of the bent piece 23 which is a more electrical connection part
Then, the support member 30 is attached to the inner side of the box body 10.
By attaching the bus bar 20 to the box body 10
Because it is fixed, the stud bolt 31 depends on the in-vehicle conditions.
Is restricted to the same direction as the insertion direction of the bus bar 20
The electrical connection of the busbar, even if
The relay box with the head bolt inserted
It can be realized.

[0031]

As described above, the relay box according to the present invention has a terminal group extending in a predetermined direction and an extension of the terminal group.
Electrical connection bent in the direction perpendicular to the installation direction.
Integrated busbar, socket and opening
Box body having an electrical connection to another electrical circuit
Stud bolts for connecting to
A support member formed separately from the box body.
Relay box with busbars extending the terminal group
Terminal group by inserting into the box body along the direction
Into the socket and stud bolts on the busbar.
At the opening, align it in the same direction as the insertion
Through the hole of the electrical connection from the inside of the
By attaching the holding member to the inner side of the box body
The busbar is fixed to the box body,
The stud bolt is inserted in the upright direction by inserting the busbar
Busbar, even if restricted to the same direction
With the stud bolt inserted through the electrical connection of
It becomes possible to easily manufacture the lay box.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment according to the present invention.

FIG. 2 is an exploded perspective view of the main body unit.

FIG. 3 is a perspective view showing a fixing unit according to the embodiment.

FIG. 4 is a plan view showing a relationship between the fixing unit and a board on which a relay box is mounted.

FIG. 5 is a process chart showing a procedure of temporary fixing according to the embodiment.

FIG. 6 is an end view of the same.

FIG. 7 is a diagram showing a connection state between the above bus bar and a power supply cable to another relay box.

FIG. 8 is a perspective view showing a support member and fixing means according to the third embodiment.

FIG. 9 is a cross-sectional view showing a connection state between the bus bar and a power cable according to the third embodiment.

FIG. 10 is a diagram showing an attached state of a sub cover which covers a terminal connection portion of a power cable.

FIG. 11 is a perspective view showing a relationship between the sub cover and the rail.

FIG. 12 is a perspective view showing a conventional example.

FIG. 13 is an exploded perspective view showing a connection state of the above bus bar.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body part 2 Upper cover 2a Hook 2b Missing part 3 Sub cover 10 Box main body 11 Ridge 12 Projection 13,14 Socket 15 Opening 15a Rail 16 Side wall 17 Fixed part 17b Temporary fixing part 18 Bolt holding member 19 Bolt 20 Bus bar 21, 22 Terminal Group 23, 24 Folding Piece 30 Support Member 31 Stud Bolt 40 Fixing Means 40a Locking Part 40b Locked Part 41a Slide Guide 41b Slider 42a Elastic Piece 42b Projection

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Shinji Nakamoto 2 Takaracho, Kanagawa-ku, Yokohama-shi, Kanagawa Prefecture Nissan Motor Co., Ltd. (56) References Japanese Utility Model 5-91122 (JP, U) (58) Survey Field (Int.Cl. ⁶ , DB name) H02G 3/16 H01R 9/00

Claims (1)

(57) [Claims] A terminal group extending in a predetermined direction;
Electrical connection bent in the direction perpendicular to the extension direction of the child group
A busbar integrally formed with the
And a box body having an opening and A star for connecting the electrical connection to another electrical circuit.
The head bolt is erected and separate from the box body.
A support member formed as a body, A relay box comprising Push the bus bar along the extension direction of the terminal group
Terminal group by inserting it into the socket body.
And stud bolts are attached to the busbar.
In the opening, aligned in the same direction as the insertion direction
Insert into the hole of the electrical connection from inside the box body
The support member on the inner surface side of the box body.
By attaching the busbar to the box book
A relay box that is fixed to the body.