JP2023166752A - earth joint connector - Google Patents

Abstract

To provide an earth joint connector that allows attachment of a housing to an attachment target part located at an arbitrary position of a member for earthing, and can reduce the length of a wire to be routed and reduce cost and weight.SOLUTION: An earth joint connector 1 has: a housing 10 that has a connection part 11 to which a mating housing is fitted and an earth joint terminal 12 to which terminals of the mating housing are connected; and an attachment member 20 that has an earth terminal 24 extending from the earth joint terminal 12 and by which an earth part 27 is earth-connected to a member for earthing 5, and that is removably attached to an attachment target part 6 of the member for earthing 5. The housing 10 and the attachment member 20 are combined to form the earth joint connector 1.SELECTED DRAWING: Figure 1

Description

The present invention relates to an earth joint connector.

Conventionally, as an example of a joint connector with a ground terminal, there is one described in Patent Document 1. The earth joint connector described in Patent Document 1 includes a housing having a fitting cylindrical portion into which a mating housing is fitted, and a ground joint that is mounted in the fitting cylindrical portion by insert molding and to which terminals of the mating housing are connected. and a terminal.

Then, with the housing mated to the mating housing and the grounding terminal and mating terminal connected, the earth joint connector is bolted to a limited number of grounding points (earth points) in a limited number of locations on the vehicle body. Fixed. At this time, the grounding circuits (wire harnesses) of multiple auxiliary devices are combined and grounded to the vehicle body using the grounding terminal of the grounding joint connector.

Japanese Patent Application Publication No. 2006-114245

However, since the conventional ground joint connector is tightened and fixed with bolts, it is possible to connect to the ground only at limited ground points on the vehicle body. The length of the wire becomes longer, which increases cost and weight.

The present invention has been made in view of the problems of the prior art. It is an object of the present invention to provide a grounding joint that allows the housing to be attached to any part of the grounding member to which it is attached, thereby reducing the length of wires to be routed, reducing costs, and reducing weight. Our goal is to provide connectors.

An earth joint connector according to an aspect of the present invention includes a housing having a connection portion into which a mating housing is fitted, an earth joint terminal to which a terminal of the mating housing is connected, and a ground portion extending from the earth joint terminal. The grounding member has a grounding terminal that is grounded to the grounding member, and a mounting member that is detachably attached to the attached portion of the grounding member.

According to the present invention, the earth joint connector allows the housing to be attached to the attached part at any position of the earthing member, thereby reducing the length of wires to be routed, reducing cost, and reducing weight. can be provided.

1 is a schematic configuration diagram showing an example of a ground joint connector according to a first embodiment of the present invention. It is a schematic block diagram of the said earth joint connector before combination. FIG. 2 is a schematic configuration diagram of the earth joint connector seen from the side. (a) is a schematic wiring diagram of a wire harness using the above earth joint connector, and (b) is a schematic wiring diagram of a wire harness using a reference example earth joint connector. It is a schematic block diagram which shows an example of the earth joint connector of 2nd Embodiment of this invention.

EMBODIMENT OF THE INVENTION Hereinafter, the earth joint connector based on embodiment of this invention is demonstrated in detail using drawing.

FIG. 1 is a schematic configuration diagram showing an example of a ground joint connector according to a first embodiment of the present invention. FIG. 2 is a schematic configuration diagram of the earth joint connector before assembly. FIG. 3 is a schematic configuration diagram of the earth joint connector viewed from the side. FIG. 4(a) is a schematic wiring diagram of a wire harness using a ground joint connector. FIG. 4(b) is a schematic wiring diagram of a wire harness using a ground joint connector as a reference example.

As shown in FIGS. 1 and 2, the earth joint connector 1 is a joint connector with a ground terminal for each clamp, and includes a housing 10 made of synthetic resin and a clip (mounting member) 20 made of synthetic resin that functions as a clamp. It is equipped with. That is, as shown in FIGS. 1 and 3, the housing 10 and the clip 20 are formed separately and are combined to form the earth joint connector 1.

As shown in FIG. 3, the housing 10 has a fitting recess (connection part) 11 into which the mating housing 2 is fitted, and a female terminal (terminal) 3 of the mating housing 2 is inserted into the housing 10 by insert molding. and a ground joint terminal 12 to be connected.

As shown in FIGS. 1 and 2, the earth joint terminal 12 includes a conductive plate-shaped horizontal bus bar (upper connection part) 13, a conductive plate-shaped vertical bus bar 14, and a plurality of conductive rod-shaped bus bars 13. It has a tab 15. The upper surface 13a side of the horizontal bus bar 13 is exposed to the upper surface 10a of the housing 10. As shown in FIG. 3, the vertical bus bar 14 hangs down from the front end of the lower surface 13b of the horizontal bus bar 13. The plurality of tabs 15 are arranged in parallel in two stages, upper and lower, at equal intervals from the vertical bus bar 14 and its auxiliary plate portion 14a, and protrude into the fitting recess 11. The plurality of tabs 15 are formed in the shape of a square bar, and have pointed tips. A plurality of female terminals 3 of the mating housing 2 are connected to the plurality of tabs 15, respectively. Note that the female terminal 3 is crimped and connected to the core wire 4a of the electric wire 4.

As shown in FIGS. 1 and 2, a pair of inverted L-shaped engaging recesses 16, 16 are provided on the upper surface 10a of the housing 10 on both sides of the horizontal bus bar 13 of the exposed earth joint terminal 12. By engaging a pair of engagement convex portions 28, 28 of a clip 20 (described later) with the pair of engagement recesses 16, 16, the clip 20 is attached to the upper surface 10a of the housing 10 and integrated. There is.

As shown in FIG. 1, the clip 20 is detachably attached to an attachment hole (attached part) 6 of a metal panel (grounding member) 5 of a vehicle body or the like. The clip 20 connects and extends from the earth joint terminal 12 with a clip main body 21 located on the housing 10 side, an anchor part 22 that can be securely attached to the attachment hole 6 of the metal panel 5, and is connected to the metal panel 5. 5 and a ground terminal 24 connected to the ground.

As shown in FIGS. 1 and 2, the anchor part 22 is integrally formed with an inverted conical pedestal part 22a integrally formed with the clip main body 21, and a shaft part 22b from this pedestal part 22a. It has a pair of elastic locking pieces 23, 23 which are locked into and released from the mounting holes 6 of No.5.

As shown in FIG. 2, the ground terminal 24 is connected to a conductive lower bus bar 25 in the form of a plate, a conductive upright bus bar 26 that stands up from the lower bus bar 25, and diagonally downwards to the left and right from the upper end of the upright bus bar 26. It has a pair of inclined conductive bus bars 27, 27. Further, the lower bus bar 25 of the ground terminal 24, the upright bus bar 26, and the pair of inclined bus bars 27, 27 are embedded in the clip body 21 by insert molding. Further, the standing bus bar 26 of the ground terminal 24 has a bifurcated portion 26a whose lower end is connected to the lower bus bar 25, and an intermediate portion 26b extending from the clip body 21 to the shaft portion 22b.

As shown in FIGS. 1 and 2, the lower surface 25b side of the lower bus bar (lower connecting portion) 25 of the ground terminal 24 is exposed between both ends of the clip body 21 as the base end portion of the clip 20. On the lower surface 21a of the clip body 21 on both sides of the exposed lower bus bar 25, a pair of engagement protrusions 28, 28 that engage with the pair of engagement recesses 16, 16 of the housing 10 are provided. Then, with the clip 20 attached to the upper surface 10a side of the housing 10, the lower bus bar 25 as the lower connecting part of the ground terminal 24 contacts the horizontal bus bar 13 as the upper connecting part of the earth joint terminal 12, and conduction is established. It is supposed to be done.

As shown in FIG. 1, each concave tip portion (part) 27a of the pair of inclined bus bars (earth portions) 27, 27 of the ground terminal 24 is attached to the tips of the pair of elastic locking pieces 23, 23. is exposed. The ground terminal 24 is grounded to the metal panel 5 by fitting each concave tip 27a into the mounting hole 6 of the metal panel 5. As shown in FIG. 2, the tip of the elastic locking piece 23 (the tip 27a of the inclined bus bar 27) is accommodated in a housing recess 22c formed on the upper surface of the pedestal 22a.

Further, as shown in FIG. 1, the pair of elastic locking pieces 23, 23 have a metal saw blade shape on each contact surface 23a with respect to the metal panel 5 to scrape off the surface layer 5a such as paint or oxide film of the metal panel 5. It has a plurality of protrusions 29 . Note that the plurality of protrusions 29 are connected to the tip portion 27a of the inclined bus bar 27.

As shown in FIG. 4(a), the earth joint connector 1 aggregates the wire harnesses 8 connected to a plurality of auxiliary devices 7 and connects them to a metal panel 5 such as the body of a vehicle through a ground terminal 24. It is something. At this time, since the earth joint connector 1 is provided with the clip 20, it can be attached to the attachment hole 6 provided at any position of the metal panel 5. For this reason, compared to the case where bolts can only be bolted at ground points P provided at limited positions on the metal panel 5, as in the reference example ground joint connector 9 shown in FIG. 4(b), the wires to be routed are The wire length of the harness 8 can be shortened, the cost can be reduced, and the weight can be reduced.

According to the earth joint connector 1 of the first embodiment, the earth joint connector 1 can be grounded by simply fitting the anchor part 22 of the clip 20 into the mounting hole 6 of the metal panel 5 with the housing 10 and the clip 20 combined. A terminal 24 is grounded to the metal panel 5. In this way, since the earth joint connector 1 can be attached to the attachment hole 6 at any position of the metal panel 5, the wire harness 8 to be routed can be attached more easily than in the case of the reference example shown in FIG. 4(b). It is possible to further reduce the length of the electric wire, reduce the cost, and reduce the weight.

Further, when fitting the anchor portion 22 of the clip 20 into the attachment hole 6 of the metal panel 5, a plurality of metal saw blade-shaped protrusions 29 provided on each contact surface 23a of the elastic locking piece portion 23 with respect to the metal panel 5 are provided. The surface layer 5a of the metal panel 5 is scraped off. This scraping ensures that the concave tip 27a of the inclined bus bar 27 of the ground terminal 24 contacts and conducts with the metal part inside the metal panel 5, so that good ground connection performance can be obtained.

FIG. 5 is a schematic configuration diagram showing an example of a ground joint connector according to a second embodiment of the present invention.

The earth joint connector 1' of the second embodiment differs from that of the first embodiment in that it is a connector with a clamp. Note that the other configurations are similar to those of the first embodiment, so the same components are denoted by the same reference numerals and detailed explanations will be omitted.

In the earth joint connector 1' of the second embodiment, the housing 10 and the clip (mounting member) 20 are integrally formed, and the earth joint terminal 12 and the earth terminal 24 are integrally connected, which makes it different from the first embodiment. It has similar actions and effects.

Although this embodiment has been described above, this embodiment is not limited to these, and various modifications can be made within the scope of the gist of this embodiment.

That is, according to the embodiment, a metal panel such as the body of a vehicle is used as the grounding member, but a metal panel other than the vehicle, a metal pipe, or the like may be used as the grounding member.

Moreover, according to the embodiment, the attachment hole is used as the attached part of the grounding member, but the attachment hole may also be used as the attached part.

1,1' Earth joint connector 2 Mating housing 3 Female terminal (terminal)
5 Metal panel (grounding member)
5a Surface layer 6 Mounting hole (mounted part)
10 Housing 10a Top surface 11 Fitting recess (connection part)
12 Earth joint terminal 13 Horizontal bus bar (upper connection part)
16, 16 Pair of engaging recesses 20 Clip (mounting member)
21 Clip body (base end)
22 Anchor part 22b Shaft part 23, 23 Pair of elastic locking pieces 23a Contact surface 24 Earth terminal 25 Lower bus bar (lower connecting part)
27, 27 Pair of inclined bus bars 27a Tip (part)
28, 28 A pair of engaging protrusions 29 A plurality of saw blade-shaped protrusions

Claims (5)

a housing having a connecting portion into which a mating housing is fitted and an earth joint terminal to which a terminal of the mating housing is connected;
a mounting member that extends from the ground joint terminal, has a ground terminal whose ground portion is grounded to the grounding member, and is removably attached to the attached portion of the grounding member;
Earth joint connector with The attachment member is a clip that can be attached to the attached portion of the grounding member in a manner that prevents it from coming off;
The clip includes a clip main body located on the housing side, and an anchor part that is removably attached to the attached part of the grounding member,
The anchor part is integrally formed with the clip main body via a shaft part, and has a pair of elastic locking pieces that are locked in the attachment hole as the attached part,
The earth joint connector according to claim 1, wherein a part of the earth portion of the earth terminal is exposed at the tips of the pair of elastic locking pieces and is grounded to the metal panel serving as the earth member. 3. The earth joint connector according to claim 2, wherein the pair of elastic locking pieces have a plurality of saw blade-shaped protrusions that scrape off a surface layer of the earthing member on a contact surface with the earthing member. the housing and the mounting member are formed separately;
An upper connecting portion of the earth joint terminal is exposed on the upper surface side of the housing, and a pair of engaging recesses are provided in an inverted L shape on both sides of the exposed upper connecting portion,
A lower connecting portion of the ground terminal is exposed between both ends of the base end portion of the mounting member, and a pair of engaging protrusions that engage with the pair of engaging recesses are provided on both sides of the exposed lower connecting portion. A department has been established,
2. The earth joint connector according to claim 1, wherein a lower connecting part of the earth terminal contacts the upper connecting part of the earth joint terminal to establish electrical conduction when the mounting member is attached to the upper surface of the housing. The housing and the mounting member are integrally formed,
The earth joint connector according to claim 1, wherein the earth joint terminal and the earth terminal are integrally connected.

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