JPH10243532A - Bus bar structure of electric connection box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the bus bar connection structure of an electric connection box which can pressure-connect cables, ensuring enough space for cable layout without being influenced by the terminal pitch of a connector, and can increase the freedom in circuit constitution more. SOLUTION: This bus bar structure is equipped with a plurality of bus bars 1 whose male terminals 2 on one side are protruded and fixed in several terminal insertion holes 5a of a mount 5 being made specified pitches apart and in which pressure-connection parts 4 for cables are made on the other end side. In this case, the bus bars 1 in each of which the width of the pressure- connection part 4 is made larger than the width of the male terminal part 2 is made larger are arranged adjacently so as to form a group D. Moreover, a group E of bus bars and further arranged adjacently, eliminating an unnecessary part, so that it may be symmetrical with the group D bus bars, in the position opposed to the group D bus bars.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus bar structure of an electric connection box such as a junction box in which an internal circuit is composed of bus bars and electric wires.

[0002]

2. Description of the Related Art For example, there is known a junction box in which an internal circuit is constituted by a press contact terminal and an electric wire. In a general crimping terminal used for the internal circuit of this junction box, the width of the crimping portion for crimping the wire is wider than the width of the tab-shaped male terminal portion (width of the crimping portion> width of the male terminal portion). In other words, those shown in FIGS. 4 and 6 are used as pressure contact terminals provided in a connector for small current.

A press contact terminal 10 shown in FIG. 4 includes a press contact portion 11 having a slot for press-fitting an electric wire, and a pair of tab-like male terminal portions 12, 12, and a pair of male terminal portions 12, 12.
The width between them is wider than the width of the press contact portion 11.

[0004] A bent press contact terminal 20 shown in FIG.
Is a press-contact portion 21 having a slot for press-connecting the electric wire 30.
, A pitch adjusting plate portion 22 and a tab-shaped male terminal portion 23, and the widths of the portions 21, 22, and 23 are the same. Are alternately arranged in the plurality of terminal insertion holes 51, 51,... Formed at equal pitches in the connector mounting portion 50 with the bent press contact terminals 20 and the flat press contact terminals 20 'without the pitch adjusting plate portion 22. By arranging, the pitch between the press contact portions of the press contact terminals is made larger than the pitch between the terminal portions. Note that this structure is disclosed in
No. 435.

[0005]

However, in the conventional press contact terminal 10 described above, the press contact portion 1 is connected to two male terminal portions.
When the press contact terminal 10 is used for the connector mounting portion, the usage rate and space of the connector terminal are wasted. For example, as shown in FIG.
In the case of the 0-pole connector 40, as shown in FIG. 5 (b), it can be used with only 5 circuits or less, and the degree of freedom in wiring and the like was small.

[0006] Further, the other conventional press contact terminal 2 having a bent shape.
In the structure using 0 or the like, the terminal pitch of the connector mounting portion 50 cannot be changed. Therefore, if an attempt is made to increase the degree of freedom in wiring and the like, the terminal pitch of the connector mounting portion 50 is affected, and sufficient wiring of the electric wire is required. It has been difficult to secure space and increase the degree of freedom in circuit configuration.

[0007] Therefore, the present invention can secure a sufficient space for the wiring of wires without being affected by the terminal pitch of a body to be mounted such as a connector mounting portion, and can press-connect the wires by pressure. An object of the present invention is to provide a bus bar structure of an electric junction box which can further improve the degree of freedom of the electric connection box.

[0008]

According to a first aspect of the present invention, a male terminal portion at one end is protruded and fixed to each terminal insertion hole of an attached body formed at a predetermined pitch, and an electric wire is pressed against the other end. In a bus bar structure of an electric junction box provided with a plurality of bus bars each having a press contact portion to be connected, the bus bars having a press contact portion having a width larger than the width of the male terminal portion are arranged adjacently so as to form a group. It is characterized by having done.

In the busbar structure of the electric junction box, the degree of freedom in arranging busbars and electric wires constituting the internal circuit is improved, and the wiring density is increased, which affects the pitch of each terminal insertion hole of the attached body. Instead, bus bars and electric wires are routed freely. As a result, the size of the electric connection box can be reduced.

According to a second aspect of the present invention, there is provided a bus bar structure of the electric connection box according to the first aspect, wherein the bus bar group is symmetrical with respect to the right and left or front and rear at positions opposed to each other. It is characterized in that another bus bar group is further arranged adjacently.

In the bus bar structure of the electric junction box, the space between the press-contact portions is large to secure a sufficient wiring space, and it is possible to cope with any number of poles to be attached, thereby improving versatility. I do.

According to a third aspect of the present invention, there is provided a busbar structure for an electric connection box according to the first aspect, wherein at least each male terminal portion side of the busbar group is molded and integrated with the attached body. It is characterized by having

In the busbar structure of this electric connection box, it is not necessary to press-fit each male terminal of the busbar group into the attached body.
The cost can be reduced accordingly.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a bus bar structure of a junction box (electric junction box) according to an embodiment of the present invention.
Each bus bar 1 used in this bus bar structure has a tab-shaped male terminal portion 2, long and short flat plate portions 3, and a press-contact portion 4 having a wire press-fitting slot 4a for press-connecting an electric wire (not shown).
Are provided. The widths of the long and short flat plate portions 3 and the press contact portions 4 are formed to be the same width, and the flat plate portion 3 and the press contact portions 4 are formed.
(The width Ha of the male terminal portion 2 is set to be about 1/3 of the width Hb of the flat plate portion 3 and the press contact portion 4). . That is, like a bus bar group composed of a plurality of bus bars 1 having a male terminal portion 2 and a press contact portion 4 at both ends shown in FIG. The bus bar
The group is formed by punching a single conductive metal plate into a predetermined shape through a processing means such as a punch, and then bending a dotted line A portion at one end (lower side in FIG. 2) downward at right angles. The male terminal portions 2 of the bus bars 1 are respectively formed, and the press contact portions 4 of the bus bars 1 are respectively formed by bending the dotted line B portion on the other end side (upper side in FIG. 2) upward at a right angle. As shown in FIG. 2, the press contact portion 4, the flat plate portion 3, and the male terminal portion 2 of the central bus bar 1 are located on a straight line. The length of the flat plate portion 3 is increased, and the flat plate portion 3 side of the male terminal portion 2 is bent so as to face each other in an L shape and extends vertically downward.

As shown in FIG. 1, a plurality of bus bars 1 having a width Hb of the press contact portion 4 larger than the width Ha of the male terminal portion 2 are arranged adjacent to each other so as to form a bus bar group D. The bus bar group D on the left side is opposite to the bus bar group D on the right side so as to be symmetrical with respect to the bus bar group D in FIG. The group E is further arranged adjacently, and the male terminal portions 2 of the bus bar groups D and E are inserted into the terminal insertion holes 5a formed at equal pitches in the connector cavity (connector mounting portion) 5 as an attached body. Each of them is press-fitted, projected and fixed, and an electric wire (not shown) is press-connected to the slot 4a of the press-contact portion 4 on the other end side. The connector cavity 5
Are integrally provided on the upper and lower covers or at least one of the covers 6 of the electric connection box.

According to the busbar structure of the electric junction box of the above embodiment, as shown in FIG. 1, each male terminal portion 2 bent below the busbar groups D and E located on the left and right sides is connected to the connector cavity. 5 into the respective terminal insertion holes 5a. At this time, since each bus bar-1 has one press contact portion 4 for one male terminal portion 2 in terms of circuit configuration, there is no need to take useless joints, and the circuit can be freely configured using electric wires. Becomes In addition, the right busbar group D in FIG. 1 can be used in a configuration in which the left busbar group E is turned 180 ° to eliminate unnecessary portions, so that it is possible to cope with any number of connectors (connectors having the same pitch). Further, by using each bus bar group D, E composed of a plurality of bus bars 1 as one unit, the wiring space is secured and the degree of freedom in circuit configuration is improved. That is, as shown in FIG.
The distance f between each press contact portion 4 of the bus bar group D and each press contact portion 4 of the bus bar group E is not affected by the interval between the terminal insertion holes 5a of the connector cavity 5 (terminal pitch of the connector).
Is large, so that a sufficient wiring space can be secured.

As described above, the bus bars 1 having the width Hb of the press contact portion 4 larger than the width Ha of the male terminal portion 2 are arranged adjacently so as to form a group, so that the bus bars 1 constituting an internal circuit are formed.
In addition, the degree of freedom of wiring can be improved, and their wiring density can be increased, so that the bus bar-1 and the electric wires can be freely wired without being affected by the terminal pitch of the connector. . As a result, the cover of the electrical junction box
6 can be reduced in size. In addition, another bus bar group E is further disposed adjacent to the bus bar group D on the right side in FIG. 1 so as to be symmetrical with the bus bar group D, so that each bus bar group D, The space f between the press contact portions 4 of E is large, so that a sufficient wiring space can be ensured, and it is possible to cope with any number of connectors, thereby improving the versatility of the electric connection box. be able to.

FIG. 3 shows a bus bar structure of an electric junction box according to another embodiment. In this bus bar structure, each of the male terminal portions 2 and the flat plate portion 3 of the bus bar groups D and E on both the left and right sides is molded into a flat plate portion 5b of a connector cavity (connector mounting portion) 5 'as an attached body. It is integrated. As a result, in addition to having the same operation and effect as the bus bar structure of the electric connection box of the above-described embodiment, it is not necessary to press-fit each male terminal portion 2 of each bus bar group D, E into the connector cavity 5 'side. Therefore, the assembling workability can be improved by that much, and the cost can be further reduced.

According to each of the above embodiments, the connector cavity (connector mounting portion) is used as an object to be mounted. However, the above embodiments are applied to an object to be mounted such as a fuse mounting portion or a relay mounting portion. Of course, it can be applied.

[0020]

As described above, according to the bus bar structure of the electric connection box of the first aspect of the present invention, the bus bars having the width of the press contact portion larger than the width of the male terminal portion are grouped. A bus bar that constitutes an internal circuit by being placed adjacently
In addition, it is possible to improve the degree of freedom of the wiring of the electric wires and increase the wiring density thereof, so that the bus bars and the electric wires can be freely arranged without being affected by the pitch of each terminal insertion hole of the attached body. can do. As a result, the size of the electric connection box can be reduced.

According to the bus bar structure of the electric junction box of the second aspect of the present invention, the bus bars are located at opposing positions of the bus bar group.
By further arranging another bus bar group adjacent to the group so as to be symmetrical left and right or back and forth, the interval between the press contact parts can be made large and the wire wiring space can be sufficiently secured,
In addition, it is possible to cope with any number of poles to be attached, so that versatility can be improved.

According to the bus bar structure of the electric connection box of the third aspect of the present invention, at least each male terminal portion side of the bus bar group is molded and integrated with the attached body, so that the bus bar group is formed. No need to press-fit each male terminal into the body to be mounted.
The cost can be reduced accordingly.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a bus bar structure of an electric junction box according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a planar shape of a bus bar used in the bus bar structure.

FIG. 3 is a perspective view showing a bus bar structure of an electric junction box according to another embodiment.

FIG. 4 is a perspective view of a press contact terminal used in a conventional electric connection box.

FIG. 5 (a) is an explanatory diagram of a terminal pitch of a connector using the above-described conventional pressure contact terminal, and FIG. 5 (b) is an explanatory diagram of a circuit used in the connector.

FIG. 6 (a) is a perspective view of another conventional press contact terminal of a bent shape, and FIG. 6 (b) is a perspective view of a connector mounting portion of an electric connection box using the press contact terminal.

[Explanation of symbols]

 Reference Signs List 1 bus bar 2 male terminal portion 4 press contact portion 5, 5 'connector cavity (attached body) 5a terminal insertion hole D, E bus bar group Ha width of male terminal portion Hb width of press contact portion

Claims (3)

[Claims] 1. A plurality of bus bars each having a male terminal portion at one end protruding and fixed to each terminal insertion hole of an attached body formed at a predetermined pitch and forming a press-contact portion for press-connecting an electric wire at the other end side. The bus bar structure of an electric connection box, comprising: a bus bar having a width of the press contact portion larger than a width of the male terminal portion, the bus bars being arranged adjacent to each other to form a group. -Structure. 2. The busbar structure of an electric junction box according to claim 1, wherein the other busbar group is symmetrical with respect to the busbar group at a position opposite to the busbar group. And a bus bar structure of the electric junction box. 3. The busbar structure of an electric junction box according to claim 1, wherein at least each male terminal portion side of said busbar group is molded and integrated with said attached body. Busbar structure of the electrical junction box.