JP3244640B2 - Busbar structure of 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 a bus bar structure of an electric connection box such as a junction box having an internal circuit composed of a bus bar 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 smaller than the width of the tab-shaped male terminal portion (width of the crimping portion <width of the male terminal portion). I have. 4 and 6 are used as pressure contact terminals provided in the 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 was 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 and press-connect the electric wires without being affected by the terminal pitch of the object to be mounted such as a connector mounting portion. It is an object of the present invention to provide a busbar structure of an electric junction box that can further improve the degree.

[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 the 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 male terminal portion has one band-like portion having a width smaller than that of the flat plate portion extending to one end of a horizontal flat plate portion. The press contact portion is formed by bending the other end side of the flat plate portion having the same width as the flat plate portion to the opposite side to the male terminal portion at a right angle, and the male terminal The busbars are arranged adjacent to each other so as to form a group so that the interval between the portions and the interval between the flat plate portions are substantially the same, and constitute one busbar group, and the same as the one busbar group. The other busbar group configured in Characterized in that opposite arranged so as to separate the said pressure contact portions causes closeness.

In the bus bar structure of the electric junction box, the degree of freedom in arranging the bus bar and the electric wire constituting the internal circuit is improved, the wiring density is also increased, and the bus bar is not affected by the pitch of each terminal insertion hole of the attached body. Bus bars and electric wires are freely routed. As a result, the size of the electric connection box can be reduced.

In the bus bar structure of the electric junction box, the space between the press contact portions of one bus bar group and the other bus bar group is large, so that a sufficient space for the wiring of the electric wires is ensured, and the number of poles to be attached can be increased. It is possible to respond and versatility is improved.

According to a second aspect of the present invention, there is provided the busbar structure of the 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. Features.

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

[0013]

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, as shown in FIG. 2, the bus bar group includes a plurality of bus bars 1 each having a male terminal portion 2 and a press contact portion 4 at both ends, and the bus bar group is formed by forming one conductive metal plate into a predetermined shape. After punching and forming through a processing means such as a punch, a dotted line A portion of one band-shaped portion extending to one end side (lower side in FIG. 2) of the flat plate portion 3 is bent downward at right angles to each other. The male terminal portions 2 of the bus bar 1 are formed respectively, and the other end side of the flat plate portion 3 (FIG. 2)
The press-contact portions 4 of the bus bars 1 are respectively formed by bending the dotted line B portion (middle upper side) 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. 3
And the length of the flat portion 3 of the male terminal portion 2 is increased.
The sides are bent so as to face each other in an L shape and extend vertically downward.

As shown in FIG. 1, a plurality of bus bars 1 in which the width Hb of the press contact portion 4 is formed larger than the width Ha of the male terminal portion 2 are formed by separating the interval between the male terminal portions 2 and the interval between the flat plate portions 3. Are arranged adjacent to each other so as to be substantially the same as each other, and a bus bar group D is formed at a position opposed to the right bus bar group (one bus bar group) D with respect to the bus bar group D in FIG. The left busbar group (other busbar group) E is further disposed adjacently so as to form (a configuration in which the two unnecessary parts on the left front side are removed by rotating by 180 °), and a connector cavity (connector mounting portion) as an object to be mounted is provided. 5) The male terminal portions 2 of the bus bar groups D and E are respectively press-fitted and fixed in the respective terminal insertion holes 5a formed at an equal pitch of 5 and are not shown in the slots 4a of the press-contact portion 4 on the other end side. Wires are to be connected by pressure welding The connector cavity 5 is
The electric connection box is provided integrally with the upper and lower covers or at least one of the covers 6.

According to the busbar structure of the electric junction box of the embodiment described above, as shown in FIG. 1, each of the male terminal portions 2 bent below the busbar groups D and E located on the left and right sides is connected to the connector cavity 5. Press-fit each terminal insertion hole 5a. At this time, since each bus bar 1 has one press contact portion 4 with respect to one male terminal portion 2 in terms of circuit configuration, there is no need to take useless joints, and the circuit configuration can be freely performed using electric wires. Become. In addition, since 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, it is possible to correspond to any number of connectors (connectors having the same pitch). Furthermore, by using each busbar group D, E composed of a plurality of busbars 1 as one unit, it is possible to secure a space for laying wires and to improve the degree of freedom in circuit configuration. 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 in which the width Hb of the press contact portion 4 is 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 the wiring density thereof 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 size of the cover 6 of the electric connection box can be reduced. Further, another bus bar group E is further disposed adjacent to the right side bus bar group D in FIG. 1 so as to be symmetrical with respect to the bus bar group D. The space f between the portions 4 is large, so that a sufficient space for electric wiring can be ensured, and it is possible to cope with any number of connectors, thereby improving the versatility of the electric connection box.

FIG. 3 shows a bus bar structure of an electric junction box according to another embodiment. In this bus bar structure, the male terminal portions 2 and the flat plate portions 3 of the bus bar groups D and E on both the left and right sides are molded into a flat plate portion 5b of a connector cavity (connector mounting portion) 5 'as an attached body and integrated. It is. Accordingly, in addition to having the same operation and effect as the busbar 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 busbar group D, E into the connector cavity 5 'side. The assembly workability can be improved, and the cost can be further reduced.

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

[0019]

As described above, according to the bus bar structure of the electric connection box of the first aspect of the present invention, the electric connection box has one male terminal portion and one press contact portion, and the width is smaller than the width of the male terminal portion. A bus bar having a large width of the press contact portion is disposed adjacent to each other so as to form a group so that the interval between the male terminal portions and the interval between the flat plate portions are substantially the same, so that the bus bar constituting the internal circuit is formed. 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. be able to. As a result, the size of the electric connection box can be reduced.

In addition, according to the bus bar structure of the electric junction box of the first aspect of the present invention, one bus bar group and another bus bar group configured in the same manner are brought close to each other with the male terminals asymptotically. By arranging the press contact portions so as to be separated from each other, the interval between the press contact portions between the bus bar groups is large, and a sufficient wire wiring space can be 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 second aspect of the present invention, at least each of the male terminal portions of the bus bar group is molded and integrated with the body to be mounted, so that each male terminal portion of the bus bar group is formed. No need to press fit 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 crimped pressure contact terminal, and FIG. 6 (b) is a perspective view of a connector mounting portion of an electric connection box using the same pressure contact terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bus bar 2 Male terminal part 4 Pressure contact part 5, 5 'Connector cavity (attached body) 5a Terminal insertion hole D, E Bus bar group Ha Width of male terminal part Hb Width of pressure contact part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H02G 3/16 H01R 4/24

Claims (2)

(57) [Claims] 1. A plurality of busbars 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. In the bus bar structure of the electric junction box, the male terminal portion is formed by bending a single band-shaped portion having a width smaller than that of the flat plate portion extending to one end side of the horizontal flat plate portion at a right angle, and The portion is formed by bending the other end side of the flat plate portion having the same width as the flat plate portion at a right angle to the opposite side to the male terminal portion, and the interval between the male terminal portions and the interval between the flat plate portions. The busbars are arranged adjacent to each other to form a group so that the busbars are substantially the same as one busbar group, and the one busbar group and another busbar group configured similarly to the busbar group, Male terminals are asymptotically approached, and Bus bar structure of an electrical connection box according to claim to be placed opposite to the cause Hansa. 2. A busbar structure for an electric connection 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. The busbar structure of the box.