JP3473447B2 - Relay terminal for electrical junction box and electrical junction box using the relay terminal for electrical junction box - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric connection box for electrically connecting tab terminals of a bus bar and electric components .
Use the relay terminal and an electrical connection box using the relay terminal for the electrical connection box.

[0002]

2. Description of the Related Art Conventionally, in an electric junction box for an automobile, for example, when connecting a tab terminal of a relay and a tab terminal of a bus bar for wiring, a relay terminal 4 as shown in FIG.
1 is used. This relay terminal 41 is of a so-called faston connection system, and has a flat board portion 4
A pair of upper and lower circular arc pieces 43a, 43b, 44 are provided on both sides of 2.
a and 44b extend toward the center of the substrate portion 42 so as to draw a semicircle. And each arc piece 43a, 43b, 4
A gap formed between one end of each of 4a and 44b and the substrate portion 42 is an insertion portion 49 into which a tab terminal 46 of a relay 45 as an electrical component or a tab terminal 48 of a bus bar 47 is inserted.
It is fifty.

The terminal width W2 and the terminal length L2 of the relay terminal 41 are the terminal width W1 of the tab terminal 46 of the relay 45.
And the terminal length L1. That is,
The terminal width W3 and the terminal length L3 of the bus bar 47 are also determined by the relay 4
5 is set based on the terminal width W1 and the terminal length L1 of the tab terminal 46.

[0004]

However, in recent years, the number of types of relays mounted on an electric junction box has increased due to the increase of various functions in automobiles, and the number of types of relays mounted increases. , The number of types of relay terminals used increases. Therefore, these plural types of relay terminals must be prepared respectively, and a plurality of facilities for manufacturing the plural types of relay terminals are required, which increases the facility cost. Moreover, it takes time and effort to manage these relay terminals.

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to reduce the cost and labor of management, and to connect an electrical connection box to which a tab terminal of an arbitrary size can be connected. It is to provide a relay terminal for .

[0006]

According to a first aspect of the present invention, there is provided an electric connection box in which a bus bar and electric components are accommodated.
The busbar tab terminal to the electrical equipment tab terminal.
A relay terminal for an electrical junction box used for
The pair of board portions integrated through a pair of connecting pieces each having a rectangular shape are opposed to each other, and elastic contact pieces extending from both ends of both board portions are bent inside the board portion to make the elastic contact. a pair of insertion portions of the tab terminal insertion faces disposed <br/> in pieces, the pair of connecting pieces formed into a shape that fits between the ends of the resilient contact piece, the two substrates portion identical width Make a rectangle
At the same time, the elastic contact piece has the same width as the board part,
The inner edges of the plate are integrally formed via one connecting piece,
In addition, the other connecting piece is integrally formed on the outer edge of one board part.
Connect the tip of the other connecting piece to the outer edge of the other board.
The main feature is the combined relay terminal for the electrical connection box .

[0007]

[0008] 請 Motomeko invention described in 2, the bus bars and electrical components provided within the case, the tab terminal of the tab terminal and the electrical component of the bus bar, through a relay terminal for electric connection box according to claim 1 The main point is an electrical connection box that is connected by means of electrical connections.

According to a third aspect of the present invention, in the electric connection box according to the second aspect , the tab terminal of the bus bar is the
Engage with a pair of connecting pieces of the relay terminal for the electrical junction box to make electrical contact.
The gist of the present invention is to include a restriction portion that restricts the position of the relay terminal for the connecting box .

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 2, the case 2 of the electrical junction box 1 is formed of synthetic resin into a substantially box shape having an open upper surface, and an engaging portion 3 is formed at the opening edge of the case 2. Then, the cover 4 is detachably attached to the upper opening of the case 2, and the lower end edge of the cover 4 is engaged with the locking portion 3 so that the cover 3 is locked and held on the case 2. Has become.

A mounting seat 5 is formed on the upper surface of the bottom wall of the case 2, and a bus bar 6 made of a metal plate is mounted on the mounting seat 5.
Is provided. On the tab terminal 7 in which one end of the bus bar 6 is erected , the relay terminal 1 as a relay terminal for an electric connection box is provided .
The tab terminal 9 of the relay 8 is electrically connected via 0.

As shown in FIGS. 1 and 2, the relay terminal 10 is provided with a pair of substrate portions 11 and 12 facing each other and having a rectangular shape and the same width . Elastic contact pieces 16 and 17 extend at both ends of each of the substrate portions 11 and 12, respectively. Both elastic contact pieces 16 and 17 are bent inside the board portions 11 and 12, respectively. The tip ends of the elastic contact pieces 16 and 17 are further bent inside the substrate parts 11 and 12 to form engagement parts 16a and 17a, respectively. An insertion portion 18 for mounting the tab terminal is formed on the upper portion of the relay terminal 10 by the pair of elastic contact pieces 16, and an insertion portion for mounting the tab terminal is formed on the lower portion of the relay terminal 10 by the pair of elastic contact pieces 17. 19 is formed. The terminal width of the relay terminal 10 is set to the minimum width W0.

The board portions 11 and 12 are integrated by a pair of connecting pieces 13 and 14 which are orthogonal to them. The connecting piece 13 and the board portion 12 are connected to each other by a joint portion 15 formed at the end of the connecting piece 13. Both connecting pieces 13 and 14 are plate-shaped, and have engaging portions 16a formed at the tips of the elastic contact pieces 16 and 17,
It is formed in a shape that can be accommodated between 17a.

Next, the manufacture of the relay terminal 10 will be described. FIG. 4 shows a development pattern 20 for forming the relay terminal 10. The development pattern 20 is formed by punching a metal plate with a press machine. Both board parts 11,
12 has the same width and a rectangular shape, and the elastic contact piece 1
6 and 17 have the same width as the board portions 11 and 12, and both board portions 1
The inner edges of 1 and 12 are integrally molded via a connecting piece 14,
In addition, the connecting piece 13 is integrally formed on the outer edge of the substrate portion 11.
It Here, the inner edge means the substrate portion 1 in the state of FIG.
1, 12 opposite edges. Also, with the outer edge
Means an edge opposite to the inner edge of the substrate portion 11.

First, the end portions of the elastic contact pieces 16 and 17 are engaged with the engaging portions 16 by valley-folding at the base lines L1 and L3.
a and 17a are bent and formed. Next, the elastic contact pieces 16 and 17 are bent and formed at the end portions of the substrate portions 11 and 12 by valley-folding at the base lines L2 and L4.

Subsequently, the connecting piece 1 is formed by valley-folding and bending 90 degrees at the base lines L5, L6, L7, L8.
Substrate portions 11 and 12 are arranged to face each other by 3 and 14.
Finally, the connecting piece 13 joint 1 which is bent formed first end of
The relay terminal 10 is manufactured by joining 5 to the outer edge of the substrate portion 12 by welding or the like.

When the relay terminal 10 is used to connect the relay 8 and the bus bar 6, the tab terminal 7 of the bus bar 6 is first inserted into the lower insertion portion 19 of the relay terminal 10. As a result, the tab terminal 7 of the bus bar 6 is fixed to the lower portion inside the relay terminal 10 in a state where both sides are in contact with the elastic contact pieces 17.

Next, in the upper insertion portion 18 of the relay terminal 10,
Insert the tab terminal 9 of the relay 8. As a result, the tab terminal 9 is fixed to the upper portion inside the relay terminal 10 in a state where both sides thereof are in contact with the elastic contact pieces 16. As a result,
The relay 8 and the bus bar 6 are electrically connected via the relay terminal 10 to function as an electrical component.

The terminal width of the relay terminal 10 is the minimum width W0.
However, since the board portions 11 and 12 are opened in the terminal width direction, the relay 8 having an arbitrary tab size (terminal width) can be connected. Further, the tab size of the tab terminal 7 of the bus bar 6 needs to be equal to the tab size of the relay 8. Therefore, as shown in FIG. 3, when the tab size W4 of the tab terminal 9 of the relay is larger than the minimum width W0, the upper end of the tab terminal 7 of the bus bar 6 has a space between the connecting pieces 13 and 14 of the relay terminal 10. It is preferable to form a convex portion 7a as a regulating portion to be inserted into the. The protrusion 7a and the connecting pieces 13 and 14 are engaged with each other, and the position of the relay terminal 10 can be regulated with respect to the tab terminal 7 of the bus bar 6.

As shown in FIG. 5, when the tab size W4 of the tab terminal 9 of the relay is larger than the minimum width W0, the relay terminal 10 is provided at the upper end of the tab terminal 7 of the bus bar 6.
The stepped concave portion 7b may be formed as a restriction portion that accommodates both the connecting pieces 13 and 14. The recess 7b engages with the connecting pieces 13 and 14, and the position of the relay terminal 10 can be regulated with respect to the tab terminal 7 of the bus bar 6.

Therefore, the relay terminal 10 of this embodiment has the following effects. In the relay terminal 10, the connecting pieces 13 and 14 are formed in a shape to fit between the elastic contact pieces 16 and 17, and
The terminal width directions of 1 and 12 are open. Therefore, the relay terminal 10 can be used for connecting the relay 8 having an arbitrary tab size (terminal width) and the bus bar 6.
Therefore, it suffices to prepare only one type of the relay terminal 10, and only one manufacturing apparatus is required, and thus the manufacturing cost of the relay terminal can be reduced. In addition, the relay terminal 10
Since only one type needs to be prepared, it is possible to reduce the time and labor required for the management.

When the relay terminal 10 is used for connecting the relay 8 having an arbitrary tab size (terminal width) and the bus bar 6, the insertion portions 18, 19 of the relay terminal 10 are used.
To the tab terminal inserted into either one of the
The position of the relay terminal 10 can be regulated by providing a regulating portion such as a convex portion or a concave portion that engages with both the connecting pieces 13 and 14.

A pair of substrate parts 11, 1 of the relay terminal 10
Since the two are connected in a state of facing each other by the pair of connecting pieces 13 and 14, when the tab terminal is inserted into the inserting portions 18 and 19, partial contact between the tab terminal and the inserting portions 18 and 19 may occur. Instead, it is possible to obtain a good electrical connection between the tab terminals inserted into both insertion portions 18 and 19.

Since the pair of insertion portions 18 and 19 are arranged opposite to each other at both ends of the relay terminal 10, the connection between the relay terminal 10 and the tab terminals 9 and 7 can be easily performed. Each of the above embodiments may be configured as follows.

[0026]

In addition to connecting the tab terminal 9 of the relay 8 and the tab terminal 7 of the bus bar 6 using the relay terminal 10, the relay terminal 10 includes the tab terminal 7 of the bus bar 6 and a tab of a fuse as an electrical component. Incorporate in connecting with terminals.

[0028]

According to the first aspect of the present invention, it is possible to connect tab terminals of any size while reducing the cost and labor of management. In addition, the relay end for the electrical junction box
Since the insertion parts are arranged opposite to each other on both ends of the child, electrical connection
Easy connection between box relay terminal and tab terminal
It

[0029]

According to the second aspect of the invention, the manufacturing cost of the entire electric junction box can be reduced. Claim 3
According to the invention described in (1), the position of the relay terminal for the electrical junction box can be easily regulated.

[Brief description of drawings]

FIG. 1 is a perspective view showing a relay terminal and a terminal connected thereto according to an embodiment.

FIG. 2 is a partially cutaway front sectional view showing the inside of the electric junction box.

FIG. 3 is a cross-sectional view showing a connection state between relay terminals and terminals.

FIG. 4 is a development view of a relay terminal.

FIG. 5 is a cross-sectional view showing another connection state of the relay terminal and the bus bar.

FIG. 6 is an exploded perspective view showing a conventional relay terminal and a terminal connected thereto.

[Explanation of reference numerals] 2 ... Case, 7, 9 ... Tab terminal, 7a ... Convex portion as regulating portion, 7b ... Recessed portion as regulating portion, 8 ... Relay as electrical equipment, 10 ... As relay terminal for electrical junction box relay terminals, 11, 12 ... substrate portion, 13, 14 ... connecting piece 16,
17 ... Elastic contact pieces, 18, 19 ... Insertion parts.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01R 31/06 H02G 3/16

Claims (3)

(57) [Claims] 1. An electrical contact for accommodating a bus bar and electrical components.
In the connection box, the tab terminals of the bus bar and the tab terminals of electrical components
Is a relay terminal for an electrical junction box used to connect
Then, a pair of substrate portions integrated through a pair of connecting pieces each having a rectangular shape are opposed to each other, and elastic contact pieces extending from both ends of both substrate portions are bent inside the substrate portion, and a pair of insertion portions of the tab terminal insertion faces disposed resilient contact pieces to form the pair of connecting pieces into a shape that fits between the ends of the resilient contact piece, the two substrates unit length the same width
It has a rectangular shape and the elastic contact piece has the same width as the substrate.
The inner edges of both board parts are integrated via one connecting piece.
And then connect the other connecting piece to the outer edge of the one board.
Form the body and attach the tip of the other connecting piece to the other board.
Relay terminal for electrical junction box joined to the outer edge . 2. A bus bar and electric components are provided in the case,
Claim the tab terminal of the bus bar and the tab terminal of electrical equipment
Connect via the relay terminal for the electrical junction box described in item 1.
An electric junction box that has been turned down. 3. The electrical junction box according to claim 2, wherein the tab terminal of the bus bar is a relay terminal for the electrical junction box.
Engage with a pair of connecting pieces to position the relay terminal for the electrical junction box.
An electrical junction box with a regulating part that regulates.