JP2012243475A - Attachment part of joint connector onto wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attachment part that can easily fix a joint connector to the outer circumference of a wire harness main line.SOLUTION: In an attachment part: a fixing base in a box shape with an open upper face, which has a joint connector housing part, is provided; and a band passing frame is projected from the lower face of the fixing base so that a fastening band passing through the band passing frame is wound around the outer circumference of a wire harness so as to be fastened and fixed. In addition, an outlet for an electric wire connected to the joint connector is provided at one of peripheral walls of the housing part, fixing claws projecting from upper portions of inner faces of at least two peripheral walls among the other peripheral walls are provided, and a clearance smaller than the thickness of the joint connector is provided between the fixing claws and the bottom wall of the housing part, so that the peripheral of the joint connector pushed forward into the clearance while bending the fixing claws is positioned and fixed by the fixing claws.

Description

  The present invention relates to a joint connector mounting component to a wire harness, and more specifically, a joint that mounts and fixes a joint connector that accommodates an electric wire to be spliced by branching from a wire group of a wire harness routed to an automobile on the outer peripheral surface of the wire harness. It relates to connector mounting parts.

  Conventionally, as this type of joint connector, as shown in FIG. 7A in JP 2009-170289 A, a joint connector 50 connected to the end of an electric wire 53 is mounted on the outer peripheral surface of a wire harness 51, and an adhesive tape 52 is wound and fixed from the outer surface of the joint connector 50 to the outer peripheral surface of the wire harness 51.

  The joint connector 50 is reduced in thickness and size as shown in FIGS. 7B and 7C. The joint connector 50 accommodates a joint bus bar 60 projecting from a tab-like terminal 60a in a housing 55. A terminal 61 connected to the terminal of 53 is fitted and connected to the tab-shaped terminal 60 a, and a lance 57 is cut and raised on the outer wall of the housing 55, and the lance 57 is locked to the terminal 61. The joint connector 50 may be referred to as a splice part.

JP 2009-170289 A

The joint connector 50 is small and thin. For example, in a joint connector in which four to eight wires 53 are connected and spliced, the vertical and horizontal dimensions are 22 to 25 mm × 12 to 20 mm, and the thickness is about 5 to 5 mm. It is about 6 mm.
When multiple joint connectors are mounted on the same circumference at intervals in the circumferential direction of the outer periphery of the wire harness and fixed with adhesive tape, the positioning and fixing work is extremely difficult because the joint connectors are small and thin. There is a problem that the efficiency is deteriorated and the mounting accuracy is liable to be deteriorated.

  The present invention has been made in view of the above problems, and it is an object of the present invention to provide a joint connector mounting component that can easily and accurately mount and fix a small and thin joint connector on the outer periphery of a wire harness with a circumferential interval. Yes.

  In order to solve the above-described problems, the present invention includes a box-shaped fixed base having an upper surface opening provided with a joint connector receiving portion, and a band-passing frame is provided on the lower surface of the fixed base so as to pass through the band-passing frame. A fastening band is wound around the outer periphery of the wire harness so as to be fastened and fixed, and a wire outlet connected to the joint connector is provided on one side of the peripheral wall of the housing part, and at least two peripheral walls of the other peripheral walls A fixing claw protruding from the upper surface of the inner surface of the housing portion, a gap less than the thickness of the joint connector is formed between the fixing claw and the bottom wall of the housing portion, and the fixing claw is bent to A joint connector mounting component for a wire harness, characterized in that the peripheral edge of the joint connector pushed into the gap can be positioned and fixed by the fixing claw. It is.

As described above, since the joint connector mounting component of the present invention has the band-passing frame projecting from the lower surface of the fixed base for receiving and fixing the joint connector, the band portion of the fastening band is passed through the band-passing frame, and the fastening is performed. Since the band is fastened and fixed to the outer periphery of the wire harness, even if the joint connector is small, it can be easily attached to the outer periphery of the required position of the wire harness, and workability can be improved.
In addition, when a plurality of joint connectors are arranged in parallel on the same circumference of the wire harness, it is only necessary to sequentially pass the band portion of one fastening band, so that work efficiency can be improved and finishing accuracy can be maintained. it can.

The joint connector housed in the housing portion of the fixed base of the present invention has the same configuration as the small and thin joint connector shown in FIG. That is, a joint bus bar in which a plurality of terminal portions are branched in the housing is accommodated, a wire terminal connected to a tab-like terminal is inserted into the housing, and the tab-like terminal is connected to the terminal portion of the joint bus bar. At the same time, the terminal of the wire end is locked by a lance cut and raised in the housing. The joint connector is preferably housed in the housing part of the mounting part of the present invention so that the lance side is the bottom wall side of the housing part. With this configuration, there is an advantage that the notch between the lances is not exposed to the outside and the insertion of the external interference material from the notch can be prevented.
In addition, the joint connector accommodated in the accommodating part of the fixed base of this invention is not limited to the said shape.

  In addition, the fastening band that passes the band part through the band through frame that protrudes from the lower surface of the fixed base is made of a general-purpose resin molded product. The band part protrudes from the fastening part main body, and the band part is sawtooth-like locked. A groove is provided, a through hole that penetrates the band part is provided in the fastening part main body, and a locking piece protruding from the inner surface of the through hole is inserted and locked into the locking groove of the band part to fasten and fix the band part. It is configured.

The fixing claw protruding from the receiving portion of the fixed base of the present invention is provided at a position to be pressed against the upper surface of the peripheral edge of the housing of the joint connector that receives the lower surface thereof, and protrudes from the protruding upper portion of the fixing claw. Inclined so as to be thinned toward the end, making it easy to bend, and
It is preferable to leave a peripheral wall on both sides of the wire outlet and to lock both ends of the joint connector on the wire connection side.
By setting the fixing claw to the above-described shape, the fixing claw can be pressed and fixed only by inserting the joint connector into the housing portion. Moreover, it can prevent that a joint connector pulls out from an accommodating part by the tension | pulling from an electric wire connection side by leaving a surrounding wall on both sides which pinch | interpose an outlet.

The housing portion of the fixed base is rectangular, and the one joint connector having a quadrangular shape is accommodated in the housing portion. Of the peripheral walls surrounding the housing portion, a back peripheral wall facing the pull-out port, and the back side It is preferable that the fixing claw is provided at an intermediate position between the peripheral walls on both sides of the peripheral wall.
As described above, when the fixing claws are provided on the three sides excluding the peripheral wall provided with the outlet, the joint connector to be inserted into the accommodating portion can be stably positioned and held.

  When there is a stepped protrusion on one side of the joint connector housing, a recess for fitting with the stepped protrusion is provided on the lower surface of the fixing claw pressed against the stepped protrusion. The joint connector can be positioned and held more reliably by fitting the stepped protrusion into the recess.

  Further, the present invention includes a plurality of the mounting parts, the band portions of the fastening band are sequentially inserted in the band-passing frames provided in the respective mounting parts, and the plurality of mounting parts are arranged in the circumferential direction on the outer peripheral surface of the wire harness. A joint connector mounting structure for a wire harness installed and mounted is provided.

Furthermore, the present invention is a method for forming the joint connector mounting structure, wherein the band portion of the fastening band is sequentially passed through the band-passing frame of the mounting component, and the band portion is wound around the outer peripheral surface of the wire harness and fastened. After fixing a plurality of mounting parts to the outer peripheral surface of the wire harness in a state of being arranged in the circumferential direction,
There is provided a joint connector mounting method to a wire harness in which a joint connector connected to a wire terminal branching from a main line of the wire harness is inserted and fixed to the mounting component on a one-to-one basis.

  As described above, the joint connector mounting part of the present invention is fixed to the outer peripheral surface of the wire harness through the band portion, and the joint connector connected to the branch line of the wire harness is attached to the fixed mounting part of each joint connector. When the insertion is fixed, there is an advantage that the wire harness fixing work of the joint connector becomes easy.

As described above, the attachment component of the joint connector to the wire harness according to the present invention is provided with the band-passing frame on the lower surface of the fixed base, the band portion of the fastening band is passed through the band-passing frame, and a plurality of attachment components A plurality of joint connectors can be easily attached in parallel in the same circumferential direction by sequentially passing the band portion through the banding frame and fastening the fastening band on the outer periphery of the wire harness.
In addition, the joint connector can be held and fixed with a fixing claw simply by inserting the joint connector into the housing part of the mounting part, and the joint connector can be assembled to the mounting part with a single touch.

The state which attached the joint connector to the attachment component of embodiment of this invention, and was mounted in the outer periphery of a wire harness is shown, (A) is sectional drawing of an axis perpendicular direction of a wire harness, (B) is the perspective view which shows the upper part of FIG. FIG. The attachment parts are shown, (A) is a perspective view, (B) is a side view, (C) is a sectional view, and (D) is a perspective view of a fixing claw. It is a schematic sectional drawing which shows the state which accommodates the joint connector in the accommodating part of an attachment component. It is a perspective view of a fastening band. The joint connector is shown, (A) is an exploded perspective view, (B) is a sectional view, and (C) is a bottom view. It is a top view of the modification of an attachment component. (A) (B) (C) is drawing which shows a prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the embodiment shown in FIGS. 1 to 5, as shown in FIG. 1, four joint connector mounting parts 1 are arranged on the same circumference at intervals of 90 degrees on the outer circumference of the main line of the wire harness 51 to be routed in the automobile. (1A to 1D) are mounted via the fastening band 2 at intervals.

  The mounting component 1 shown in FIG. 2 is a resin molded product, and includes a box-shaped fixed base 7 having an upper surface opening provided with a receiving portion 6 of the joint connector 3. The fixed base 7 has peripheral walls 7b to 7e projecting from four sides of a rectangular bottom wall 7a, and the bottom wall 7a and the peripheral walls 7b to 7e surround the accommodating portion 6 which is a rectangular shallow recess. A wide wire outlet 8 is provided at the center of the peripheral wall 7b, leaving the peripheral wall 7b on both sides of the wire outlet 8 to prevent the joint connector 3 accommodated in the accommodating portion 6 from coming out of the electric wire outlet 8. .

The remaining three peripheral walls 7c to 7e, that is, the inner peripheral wall 7d facing the electric wire outlet 8, the peripheral walls 7c and 7e on both sides sandwiching the peripheral wall 7d, from the inner surface upper part of the three peripheral walls toward the accommodating portion 6 Projecting fixed claws 9 (9A, 9B, 9C) are provided in a projecting manner.
As shown in FIG. 2 (D), these fixed claws 9 have their upper surfaces protruding from the tip surfaces of the peripheral walls 7c to 7e, and provided with inclined surfaces 9s that gradually become thinner on the protruding side. The lower surfaces of the fixed claws 9A and 9B are flat horizontal surfaces, and the fixed claws 9C are provided with stepped recesses 9h for fitting side edge stepped portions 3a of the joint connector 3 to be described later.

  As shown in FIG. 3, the dimension (h) between the bottom surface 9 u on the protruding side of the three fixed claws 9 (9 </ b> A to 9 </ b> C) and the bottom wall 7 a of the housing portion 6 is the same as the thickness (t) of the joint connector 3. Or it is about 1-2 mm small. Thus, the joint connector 3 is slightly bent when inserted, and the peripheral edge portion of the joint connector 3 inserted between the fixed claw 9 and the bottom wall 7a is pushed down. Further, the side edge step portion 3a of the joint connector 3 is fitted into the stepped recess 9h, thereby preventing the position shift of the joint connector 3.

A U-shaped band-passing frame 10 is projected on the lower surface of the bottom wall 7 a of the fixed base 7 so that the band portion 20 of the fastening band 2 is passed through the band-passing frame 10.
A fastening band of a general-purpose resin molded product is used as the fastening band 2, and as shown in FIG. 4, a band portion 20 is projected from the fastening portion main body 21, and a serrated locking groove 20 a is formed in the band portion 20. The fastening portion main body 21 is provided with a through hole 21a penetrating the band portion 20, and the locking piece 21b protruding from the inner surface of the through hole 21a is inserted and locked into the locking groove 20a of the band portion 20 to lock the band portion. 20 is fastened and fixed.

  The joint connector 3 housed in the housing portion 6 of the fixed base 7 has the same configuration as the small and thin joint connector shown in FIG. That is, as shown in FIGS. 5A to 5C, a joint bus bar 26 in which a plurality of tab-like terminal portions 26a are branched from the continuous base portion 26b in one side of the housing 25 is accommodated. The joint connector 3 used in the present embodiment is for eight poles in which eight branch lines of electric wires 53 branched from the trunk line of the wire harness 51 are spliced with one joint connector 3. Accordingly, the number of terminal portions 26a provided in the joint bus bar 26 is eight, and a terminal accommodating chamber 25a into which the terminal portions 26a are inserted is provided in the housing 25 by partitioning with a partition wall. A lance 25b is cut and raised in a housing 25 which is an outer wall of the terminal accommodating chamber 25a.

  At the other end of the housing 25, an electric wire insertion port 25c to each terminal accommodating chamber 25a is provided. As shown in FIG. 5B, the female terminal 55 is connected to the exposed wire core wire by peeling off the insulation coating of the end of the electric wire 53, and the female terminal 55 is inserted through the electric wire insertion port 25c. The tab-like terminal portion 26a of the bus bar 26 is fitted and connected, and the eight electric wires 53 are connected to each other and are spliced. In addition, the female terminal 55 of the electric wire 53 is locked by the lance 25b to prevent the fitting from coming off.

  Next, the fixing process of the mounting part 1 to the outer periphery of the wire harness 51 and the mounting process of the joint connector 3 to the mounting part 1 will be described.

First, before inserting the joint connector 3 into the accommodating portion 6 provided on the fixing base 7 of the attachment component 1, the attachment component 1 is fixed to the outer peripheral surface of the wire harness 51 at 90 ° intervals using the fastening band 2.
Specifically, four attachment parts 1 (1A to 1D) and one fastening band 2 are prepared, and the fastening band 2 is attached to the band-passing frame 10 protruding from the lower surface of the fixed base 7 of each attachment part 1. The band part 20 is sequentially passed, and the four attachment parts 1 are supported by one band part 20.

  Thus, after passing the band part 20, the fastening band 2 is wound around the outer periphery of the wire harness 51, the band part 20 is passed through the through hole 21 a of the fastening part main body 21, and the band part 20 is sawtooth-like locked. The locking piece 21 b is inserted into and locked in the groove 20 a to fix the fastening band 2 to the outer peripheral surface of the wire harness 51. At that time, the four attachment parts 1 passed through the band part 20 are fastened and fixed in a state of being arranged at intervals of approximately 90 degrees. Each attachment component 1 is in a state where the upper surface opening of the housing portion 6 is located outward and the wire outlet 8 is located on one side.

  As described above, after the four attachment parts 1 are arranged on the outer circumferential surface of the wire harness 51 at intervals on the same circumference, the four joint connectors 3 (3 </ b> A to 3 </ b> A) respectively connected to branch lines branched from the wire harness 51. 3D) is inserted into the accommodating part 6 of the attachment part 1 on a one-to-one basis.

When the joint connector 3 is inserted into the housing portion 6, the joint connector 3 is inserted while being inclined from the upper portion of the housing portion 6 toward the rear peripheral wall 7 d with the wire connection side of the joint connector 3 facing the wire outlet 8 side. At the time of the insertion, the lance 25b of the joint connector 3 is directed downward and is in a direction to contact the bottom wall 7a. In the insertion process, the protruding sides of the fixed claws 9A and 9C on both sides are bent upward and inserted, the insertion side tip of the joint connector 3 is abutted against the inner surface of the rear peripheral wall 7d, and the fixed claws 9B and bottom It is located between the walls 7a. When this state is reached, the end surface of the joint connector 3 on the wire connection side is abutted against the inner surface of the peripheral wall 7b, and the joint connector 3 is accommodated in contact with the bottom wall 7a. Is in contact with the inner surfaces of the peripheral walls 7b to 7e, and the upper surface of the peripheral edge is pressed and fixed from above by the fixing claws 9A, 9B, 9C. Further, since the lance 25b of the joint connector 3 faces downward and is in contact with the bottom wall 7a, it does not interfere with the external interference material, and the lance 25b is pressed in the locking direction by the bottom wall 7a. Can be achieved reliably.
As described above, the joint connector 3 at the end of the electric wire 53 branched from the trunk line of the wire harness 51 can be accommodated in the accommodating part 6 of the attachment component with almost one touch, and can be accommodated and fixed by the fixing claws 9.

  Moreover, after fixing the attachment component 1 (1A-1D) to the outer periphery of the wire harness 51, as shown in FIG. 1, the joint connector 3 (3A-3D) connected to the electric wire 53 is inserted into the attachment component 1A-1D. doing. Each attachment component 1 is arranged on the wire harness 51 at an optimal angular position for each joint connector 3, and the assembly workability between the joint connector 3 and the attachment component 1, and the assembly operation between the attachment component 1 and the wire harness 51. Can enhance both sex.

The present invention is not limited to the above-described embodiment, and as shown in FIG. 6, the auxiliary frame portion 13 that protrudes by inclining the fixing claw 9 from the upper surface of the entire length of the peripheral walls 7c, 7d, 7e toward the central portion is provided. Then, the fixing claw 9 may protrude from the center of the auxiliary frame portion 13.
In this case, the joint connector 3 inserted into the accommodating portion 6 can be positioned and fixed more reliably.

Further, the size and shape of the accommodating portion 6 provided in the attachment component may be changed in accordance with the joint connector, and for example, the attachment component 1 may be reduced in size so that the 6-pole joint connector can be just fitted into the accommodation portion 6. Mounting parts for accommodating the 6-pole joint connector and the 8-pole joint connector are separately provided, and a plurality of attachment parts having different sizes can be connected by a single fastening band and attached to the outer periphery of the wire harness. Good.
Furthermore, the number of attachment parts 1 to be juxtaposed on the same circumference of the wire harness using one fastening band is not limited to four, and may be 1 to 3, 5 or more.
Moreover, you may fix to the outer periphery of a wire harness through a fastening belt in the state which accommodated each joint connector in the accommodating part of each attachment component.

DESCRIPTION OF SYMBOLS 1 (1A-1D) Attachment part 2 Fastening band 3 Joint connector 6 Accommodating part 7 Fixed base 7a Bottom wall 7b-7e Perimeter wall 8 Electric wire outlet 9 (9A, 9B, 9C) Fixing claw 9s Inclined surface 10 Band through frame 20 Band Part 21 Fastening part main body 25 Housing 26 Joint bus bar 51 Wire harness 53 Electric wire

Claims (4)

  A box-shaped fixed pedestal with an opening on the upper surface provided with a joint connector housing is provided. A band-through frame projects from the lower surface of the fixed pedestal, and a fastening band passing through the band-through frame is wound around the outer periphery of the wire harness and fastened. Fixing that can be fixed and provided with an outlet for an electric wire connected to the joint connector on one side of the peripheral wall of the housing portion, and that protrudes from the upper part of the inner surface of the peripheral wall of at least two sides of the other peripheral walls to the housing portion A claw is protruded, a gap equal to or less than the thickness of the joint connector is formed between the fixed claw and the bottom wall of the housing portion, and a peripheral edge portion of the joint connector that is pushed into the gap by bending the fixed claw A joint connector mounting component to a wire harness, characterized in that it can be positioned and fixed by the fixing claw. The fixed claw is provided at a position to press the upper surface of the peripheral edge of the housing of the joint connector that accommodates the lower surface of the fixed claw, and is inclined and bent so that the upper part on the protruding side of the fixed claw is thinned toward the protruding end. Easy and
The joint connector attachment component to the wire harness according to claim 1, wherein a peripheral wall is left on both sides of the wire outlet and the both ends of the joint connector on the wire connection side are locked.   A plurality of mounting parts according to claim 1 or 2, wherein the band part of the fastening band is sequentially inserted into the banding frame provided in each mounting part, and the plurality of mounting parts are provided on the outer peripheral surface of the wire harness. Joint connector mounting structure for wire harnesses installed side by side in the circumferential direction. The joint connector mounting structure forming method according to claim 3, wherein the band part of the fastening band is sequentially passed through the band-passing frame of the attachment part, and the band part is wound around the outer peripheral surface of the wire harness and fastened. After fixing a plurality of mounting parts to the outer peripheral surface of the wire harness in a state of being arranged in the circumferential direction,
A joint connector attaching method to a wire harness, in which a joint connector connected to an electric wire terminal branched from a trunk line of the wire harness is inserted and fixed to the attachment part on a one-to-one basis.

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