JP2023001726A - Power supply circuit member and bus bar - Google Patents

Abstract

To provide a power supply circuit member and a bus bar that enable external wires to be easily branch-connected later without releasing fastening at opposite ends.SOLUTION: The power supply circuit member includes a bus bar 10 that has fastening parts 11, 12 at opposite ends, and a housing 30 that houses the bus bar. The bus bar has a first bent part 13, a second bent part 14, and a linear part 16 between the opposite bent parts. Wire connection terminal pieces 21, 22 that can be connector-connected with external wires W1, W2 are provided in a projecting manner at a side edge part of the linear part. Connector housing parts 51, 52 that accommodate the wire connection terminal pieces to form connectors 26, 27 are formed in the housing.SELECTED DRAWING: Figure 1

Description

The present invention relates to power supply circuit members and busbars.

In a wire harness to be routed in a vehicle, when a branch wire conductor is branched and connected in the middle of a trunk conductor constituting the wire harness, a terminal portion having a pressure contact slot is provided at the end of the branch wire conductor, and the terminal portion is Some are connected to trunk conductors by pressure contact (see, for example, Patent Document 1).

On the other hand, in an electric connection box mounted on a vehicle, a bus bar is widely used as a main line conductor constituting a power supply circuit or the like. When a power supply circuit is composed of busbars, the terminal section formed at one end of the busbar is screwed to the fastening target member on the power supply side, and the terminal section formed at the other end of the busbar is screwed to the fastening target member on the load side. It is common practice to do

By the way, when branching and connecting an external electric wire to the bus bar that constitutes the power supply circuit, it is difficult to adopt the pressure contact method shown in Patent Document 1, and generally, the end of the bus bar is When the terminal portion is fastened to the fastening target member with a screw, the terminal portion provided at the end of the electric wire is also fastened together with the same screw.

Japanese Utility Model Publication No. 6-28727

However, when branching and connecting an external electric wire to a busbar whose both ends have already been fastened with screws to the fastening target members, the screws that have already been used for fastening are removed once, and then the external electric wires are reconnected. It is troublesome work to fasten the terminals together with the same screw.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and an object of the present invention is to enable a bus bar whose fastening portions at both ends have already been fastened to fastening target members without releasing the fastening. To provide a power supply circuit member and a bus bar capable of branching and connecting external electric wires.

In order to achieve the above object, a power supply circuit member and a bus bar according to the present invention are characterized by the following (1) to (4).
(1) A bus bar made of a band plate and having fastening portions for attachment target members at both ends in the extending direction;
a resin housing that is formed along the extending shape of the bus bar and accommodates the bus bar;
A power circuit member comprising:
The bus bar has a first bent portion and a second bent portion bent in a plane parallel to the plate surface of the band plate, and a straight portion between the first bent portion and the second bent portion. has
A wire connection terminal portion capable of connector connection with an external wire is provided on a side edge portion of the bus bar in the straight portion,
Power circuit component.

According to the power supply circuit member having the above configuration (1), since the wire connection terminal portion capable of being connected to an external electric wire is provided between the fastening portions at both ends of the bus bar, the fastening portions at both ends can be fastened. The external electric wire can be branched and connected to the bus bar without releasing the . Therefore, even if the power supply circuit needs to be branched later, it can be easily realized by simply connecting the external electric wire to the electric wire connection terminal portion provided on the bus bar. In addition, since the bus bar has a plurality of bent portions, by adjusting the positions where the bent portions are formed, it is possible to realize the wiring of the bus bar according to the variations of the objects to be fastened. Adjustment of the position of the wire connection terminal portion provided on the portion is also facilitated.

(2) As the wire connection terminal portion, a wire connection terminal piece protrudes from a side edge portion of the bus bar in the straight portion,
The housing is formed with a connector housing portion that accommodates the wire connection terminal piece and forms a connector that can be fitted with a connector of the external wire.
The power supply circuit member according to (1) above.

According to the power supply circuit member having the above configuration (2), the connector housing portion accommodates the wire connection terminal piece provided on the bus bar to form a connector for connection with an external wire. Disconnection can be safely and easily performed, and safety can be ensured by protecting the wire connection terminal piece from being exposed to the outside when not in use.

(3) the first bent portion and the second bent portion are bent at right angles in opposite directions when viewed from the straight portion;
The wire connection terminal piece protrudes in a direction perpendicular to an extending direction of the straight portion from a side edge portion of the bus bar in the straight portion,
The terminal of the connector of the external electric wire is detachably attached to the electric wire connection terminal piece in a direction perpendicular to the extending direction of the straight portion.
The power supply circuit member according to (2) above.

According to the power supply circuit member having the above configuration (3), the direction in which the external electric wire connected to the electric wire connection terminal piece of the busbar can be set in the direction perpendicular to the straight portion between the bent portions. Mutual interference with electric wires can be suppressed as much as possible. In addition, since the external electric wire connector-connected to the electric wire connection terminal piece of the busbar can be extended in a direction parallel to the extending direction of the busbar extending from the bent portion to the end portion, the wiring area of the busbar and the external electric wire can be made compact. can be accommodated. In addition, even in a state in which an external electric wire is not connected, the wire connection terminal piece extends from the straight portion between the bent portions of the busbar to the direction along the extending direction of the busbar between the end portion and the bent portion of the busbar. Since it protrudes, if the portion of the busbar extending from the bent portion toward the end portion is regarded as a "sleeve", the wire connection terminal piece will be hidden inside the sleeve. It is difficult to get in the way of

(4) It consists of a band plate, and has fastening portions for attachment target members at both ends in the extending direction,
Having a first bent portion and a second bent portion bent in a plane parallel to the plate surface of the strip plate, and a straight portion between the first bent portion and the second bent portion,
A wire connection terminal piece capable of being connected to an external wire is projected from a side edge portion of the band plate in the straight portion,
Busba.

According to the bus bar having the configuration of (4) above, since the wire connection terminal piece capable of being connected to an external electric wire is projected between the fastening portions at both ends of the bus bar, the fastening portions at both ends are released. External electric wires can be branch-connected to the bus bar without having to do so. Therefore, even if the power supply circuit needs to be branched later, it can be easily realized by simply connecting an external wire to the wire connection terminal piece provided on the bus bar. In addition, since the bus bar has a plurality of bent portions, by adjusting the positions where the bent portions are formed, it is possible to realize the wiring of the bus bar according to the variations of the objects to be fastened. Adjustment of the position of the wire connection terminal portion provided in the portion is also facilitated.

According to the present invention, it is possible to easily branch-connect an external electric wire later without canceling the fastening even to a bus bar whose fastening portions at both ends have already been fastened to fastening target members, and the power supply circuit can be retrofitted. can be easily expanded.

The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following detailed description of the invention (hereinafter referred to as "embodiment") with reference to the accompanying drawings. .

1A and 1B are explanatory diagrams according to an embodiment of the present invention, in which (a) is a perspective view showing a state in which an external electric wire is to be connected to a power circuit member according to the embodiment afterward, and (b) is the power source. It is an exploded perspective view of a circuit member. FIG. 2 is a perspective view showing a state in which an external electric wire is connected to the power circuit member according to the embodiment of the present invention by retrofitting. FIG. 3 is a cross-sectional view showing a state in which an external electric wire is connected to the power circuit member according to the embodiment of the present invention by retrofitting.

Specific embodiments relating to the present invention will be described below with reference to each drawing.

FIG. 1(a) is a perspective view showing a state in which an external electric wire is to be connected to a power supply circuit member according to an embodiment of the present invention, and FIG. 1(b) is an exploded perspective view of the power supply circuit member. 2 is a perspective view showing a state in which an external electric wire is connected to the power circuit member by post-installation, and FIG. 3 is a sectional view of the power circuit member.

As shown in FIG. 1, the power supply circuit member 1 according to the present embodiment includes a bus bar 10 made of a highly conductive metal having fastening portions 11 and 12 for attachment target members at both ends in the extending direction, and an extending shape of the bus bar 10. and a resin housing 30 that is formed along and accommodates the bus bar 10 . The housing 30 is composed of an upper cover 30A and a lower cover 30B which are halved in the thickness direction of the band plate that constitutes the busbar 10 and are united.

The bus bar 10 is formed in a strip shape, and has a first bent portion 13 and a second bent portion 14 bent in a plane parallel to the plate surface of the band plate, and a portion between the bent portions 13 and 14. It has a straight portion 16 . The first bent portion 13 and the second bent portion 14 are bent at right angles in opposite directions when viewed from a straight portion 16 located between the bent portions 13 and 14 .

The portions extending from the bent portions 13 and 14 toward the fastening portions 11 and 12 at both ends are configured as straight portions 15 and 17 parallel to each other. In addition, at positions near the fastening portions 11 and 12 of the straight portions 15 and 17 extending toward the fastening portions 11 and 12 at both ends, right-angled bends for directing the fastening portions 11 and 12 at both ends to the opposite outward direction are provided. Sections 18, 19 are provided. The fastening portions 11 and 12 at both ends are configured as terminal portions in which mounting holes 11a and 12a for screwing are formed.

In addition, the bus bar 10 has two wire connection terminal strips (wire terminals) that can be connected to the external wires W1 and W2 in a side edge portion of the straight portion 16 between the first bent portion 13 and the second bent portion 14 . connection terminal portions) 21 and 22. The wire connection terminal pieces 21 and 22 are protruding from the side edges with a proper gap between them.

The wire connection terminal pieces 21 and 22 protrude in a direction perpendicular to the extending direction of the straight portion 16 between the first bent portion 13 and the second bent portion 14 . That is, the wire connection terminal pieces 21 and 22 protrude in a direction parallel to the straight portion 15 extending from the first bent portion 13 toward the fastening portion 11 at one end.

Therefore, as shown in FIG. 3, the terminals 101 and 102 of the connectors C1 and C2 of the external wires W1 and W2 are connected to the wire connection terminal pieces 21 and 22 at the first bent portion 13 and the second bent portion. It is detachable in the direction perpendicular to the extending direction of the linear portion 16 between the portions 14 (direction of arrow S in FIGS. 1(a) and 3).

The housing 30 is formed so as to accommodate each part of the busbar 10 along the extending shape of the busbar 10, as shown in FIG. 1(a). That is, the housing 30 has first and second bending portions 13, 14, straight portions 16, 15, 17 and right angle bending portions 18, 19 of the bus bar 10, respectively. bent portions 33, 34, straight portions 35, 36, 37, and right-angled bent portions 38, 39 are provided. Moreover, portions 31 and 32 for pulling out the fastening portions 11 and 12 at both ends of the bus bar 10 are provided.

In order to construct the housing 30 having such a shape, as shown in FIG. Parts 31A, 32A, 33A, 34A, 35A, 36A, 37A, 38A, and 39A are provided for configuration, and lower cover 30B is provided with 31B, 32B, 33B, 34B, 35B, 36B, 37B, 38B, and 39B. It is

Further, the upper cover 30A and the lower cover 30B are provided with engaging portions 41A and 41B for locking each other when the bus bar 10 is accommodated between them and the housing 30 is constructed.

The housing 30 also includes connector housing portions 51 and 52 that accommodate the wire connection terminal pieces 21 and 22 of the bus bar 10 and form connectors 26 and 27 that can be fitted to the connectors C1 and C2 of the external wires W1 and W2. is provided. To form the connector housing portion 51, the upper cover 30A and the lower cover 30B are provided with connector housing forming portions 51A and 51B for accommodating the wire connection terminal piece 21 therebetween. In order to configure the connector housing portion 52, the upper cover 30A and the lower cover 30B are provided with connector housing components 52A and 52B for accommodating the wire connection terminal piece 22 therebetween.

As shown in FIG. 1(a), the power supply circuit member 1 completed by accommodating the busbars 10 in the housing 30 includes the bent portions 13, 14, the straight portions 15, 16, 17 and the right angle portions of the busbars 10, as shown in FIG. There are provided portions 3, 4, 5, 6, 7, 8 and 9 corresponding to the bends 18 and 19 respectively.

According to the power supply circuit member 1 configured as described above, the wire connection terminal piece (wire connection terminal portion) 21 capable of connector connection with the external wires W1 and W2 is provided between the fastening portions 11 and 12 at both ends of the busbar 10. 22 are provided, the external electric wires W1 and W2 can be branch-connected to the bus bar 10 without releasing the fastening of the fastening portions 11 and 12 at both ends. Therefore, even if the power supply circuit needs to be branched later, it can be easily realized by simply connecting the external wires W and W2 to the wire connection terminal pieces 21 and 22 provided on the bus bar 10 with connectors. In addition, since the busbar 10 has a plurality of bent portions 13 and 14, by adjusting the positions at which the bent portions 13 and 14 are formed, the busbar 10 can be routed according to variations of fastening objects. At the same time, the positions of the wire connection terminal pieces 21 and 22 provided on the straight portion 16 between the bent portions 13 and 14 can be easily adjusted.

Further, in the power supply circuit member 1 having the above configuration, the wire connection terminal pieces 21 and 22 provided on the bus bar 10 are housed in the connector housing portions 51 and 52, so that they are connected to the connectors C1 and C2 of the external wires W1 and W2. connectors 26 and 27 are formed. Therefore, the external wires W1 and W2 can be connected and disconnected safely and easily, and when not in use, the wire connection terminal pieces 21 and 22 can be protected from being exposed to the outside, ensuring safety. can do.

Further, according to the power supply circuit member 1 having the above configuration, as shown in FIGS. Since it can be set in a direction perpendicular to the straight portion 16 between 13 and 14, mutual interference between the bus bar 10, that is, the power supply circuit member 1 and the external wires W1 and W2 can be suppressed as much as possible.

Also, the external electric wires W1 and W2 connector-connected to the electric wire connection terminal pieces 21 and 22 of the bus bar 10 are extended in a direction parallel to the extending direction of the bus bar 10 extending from the first bent portion 13 to one of the fastening portions 11. can be done. Therefore, the wiring area of the bus bar 10, that is, the power supply circuit member 1 and the external electric wires W1 and W2 can be accommodated compactly. Moreover, as shown in FIG. 1A, even when the external wires W1 and W2 are not connected, the wire connection terminal pieces 21 and 22 are not connected to the straight portion 16 between the bent portions 13 and 14 of the bus bar 10. Since it protrudes in a direction along the extending direction of the busbar 10 between the end (fastening portion 11) and the bending portion (first bending portion 13) of the busbar 10, the bending portion (first bending portion 13) ) toward the end (fastening portion 11) of the busbar 10 as a “sleeve”, the wire connection terminal pieces 21 and 22 are hidden inside the sleeve. This makes it less likely to get in the way when wiring the busbar.

It should be noted that the present invention is not limited to the above-described embodiments, and can be modified, improved, etc. as appropriate. In addition, the material, shape, size, number, location, etc. of each component in the above-described embodiment are arbitrary and not limited as long as the present invention can be achieved.

Here, the features of the power supply circuit member and the busbar according to the embodiment of the present invention described above are summarized and listed briefly in [1] to [4] below.
[1] A bus bar (10) made of a band plate and having fastening portions (11, 12) for attachment target members at both ends in the extending direction;
a resin housing (30) formed along the extending shape of the bus bar (10) and accommodating the bus bar (10);
A power supply circuit member (1) comprising
The bus bar (10) includes a first bent portion (13) and a second bent portion (14) bent in a plane parallel to the plate surface of the band plate, and the first bent portion (13). and a straight portion (16) between the second bends (14);
Wire connection terminal portions (21, 22) capable of connector connection with external wires (W1, W2) are provided on the side edges of the bus bar (10) in the straight portion (16),
A power circuit member (1).

[2] As the wire connection terminal portions (21, 22), wire connection terminal pieces (21, 22) project from side edges of the bus bar (10) in the straight portion (16),
The housing (30) accommodates the wire connection terminal pieces (21, 22) to form connectors (26, 27) that can be fitted with the connectors (C1, C2) of the external wires (W1, W2). connector housing portions (51, 52) are formed;
The power supply circuit member (1) according to the above [1].

[3] The first bent portion (13) and the second bent portion (14) are bent perpendicularly in opposite directions when viewed from the straight portion (16),
The wire connection terminal pieces (21, 22) protrude from the side edges of the bus bar (10) in the straight portion (16) in a direction perpendicular to the extending direction of the straight portion (16),
The terminals (101, 102) of the connectors (C1, C2) of the external wires (W1, W2) are arranged perpendicularly to the extending direction of the linear portion with respect to the wire connection terminal pieces (21, 22). It is considered to be detachable,
The power supply circuit member (1) according to [2] above.

[4] Consists of a band plate, and has fastening portions (11, 12) for attachment target members at both ends in the extending direction,
A first bent portion (13) and a second bent portion (14) bent in a plane parallel to the plate surface of the strip plate, and the first bent portion (13) and the second bent portion ( 14) and a straight portion (16) between
Wire connection terminal strips (21, 22) capable of being connected to external wires (W1, W2) are protruding from side edges of the band plate in the straight portion (16),
Busba.

Reference Signs List 1 power supply circuit member 10 bus bar 11, 12 fastening portion 13 first bent portion 14 second bent portion 15, 16, 17 straight portion 18, 19 right angle bent portion 21, 22 wire connection terminal piece (wire connection terminal portion)
26, 27 connector 30 housing 30A upper cover 30B lower cover 51, 52 connector housing portion W1, W2 external electric wires C1, C2 external electric wire connectors 101, 102 external electric wire connector terminals

Claims (4)

a bus bar made of a band plate and having fastening portions for attachment target members at both ends in the extending direction;
a resin housing that is formed along the extending shape of the bus bar and accommodates the bus bar;
A power circuit member comprising:
The bus bar has a first bent portion and a second bent portion bent in a plane parallel to the plate surface of the band plate, and a straight portion between the first bent portion and the second bent portion. has
A wire connection terminal portion capable of connector connection with an external wire is provided on a side edge portion of the bus bar in the straight portion,
Power circuit component. As the wire connection terminal portion, a wire connection terminal piece protrudes from a side edge portion of the bus bar in the straight portion,
The housing is formed with a connector housing portion that accommodates the wire connection terminal piece and forms a connector that can be fitted with a connector of the external wire.
The power supply circuit member according to claim 1. The first bent portion and the second bent portion are bent at right angles in opposite directions when viewed from the straight portion,
The wire connection terminal piece protrudes in a direction perpendicular to an extending direction of the straight portion from a side edge portion of the bus bar in the straight portion,
The terminal of the connector of the external electric wire is detachably attached to the electric wire connection terminal piece in a direction perpendicular to the extending direction of the straight portion.
3. The power circuit member according to claim 2. It consists of a band plate, and has a fastening portion for the member to be attached at both ends in the extending direction,
Having a first bent portion and a second bent portion bent in a plane parallel to the plate surface of the strip plate, and a straight portion between the first bent portion and the second bent portion,
A wire connection terminal piece capable of being connected to an external wire is projected from a side edge portion of the band plate in the straight portion,
Busba.

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