JP2020047368A - Multiplex communication connector - Google Patents

Abstract

To provide a connector for multiplex communication capable of preventing reduction of a noise cancellation performance by preventing mounting positions of multiple ferrites from being displaced.SOLUTION: A connector for multiplex communication comprises multiple ferrites 40 in which multiple couples of through-holes 41 are provided while being disposed side by side, a pair of tab-like terminals 51 being inserted into a pair of through-holes. At a front side with respect to through-hole formation surfaces 42A and 42b each to be a surface where a pair of through-holes 41 to be coupled is formed, multiple recesses 44a with which an inclined plane 43a is formed around the front-side through-hole formation surface 42a are provided while being disposed side by side in such a recessed shape that the front-side through-hole formation surface 42a becomes a bottom face. At a rear side, multiple projections 44b with which an inclined plane 43b is formed around the through-hole formation surface 42b are provided while being disposed side by side at a rear face side of the multiple recesses 44a in such a projected shape that the rear-side through-hole formation surface 42b becomes a top face. The multiple recesses 44a and the multiple projections 44b are fitted to each other in a longitudinal direction, such that multiple couples of paired through-holes 41 are positioned and disposed relatively to each other.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a multiplex communication connector having a noise removing function.

2. Description of the Related Art Conventionally, a multiplex communication connector is used to connect communication lines arranged to control a plurality of electrical components mounted on a vehicle by communication.
In the connector for multiplex communication, ferrite is arranged inside a connector housing as a magnetic material for removing noise.

  For example, Patent Literature 1 discloses a multiplex communication connector that can obtain desired impedance characteristics by arranging a plurality of ferrite plates (ferrites) in an overlapping manner.

JP 2011-253643 A

  However, in the multiplex communication connector described in Patent Document 1, when a plurality of ferrites are accommodated in the accommodating portions of the plurality of ferrites, the plurality of ferrites are relatively displaced from each other, and the through holes of the terminals of the respective ferrites. May be relatively displaced. Then, there is a concern that noise removal performance is reduced due to friction between the terminal and the inner wall surface of the through hole, and as a result, communication reliability is reduced.

  The present invention has been made in view of the above, and an object of the present invention is to provide a multiplex communication connector that can prevent a decrease in noise removal performance by preventing displacement of mounting positions of a plurality of ferrites. I do.

  In order to solve the above-described problems and achieve the object, the multiplex communication connector according to the present invention is provided with a plurality of pairs of through holes into which a pair of tab-shaped terminals are inserted, and the pair is formed as a pair. On the front side, an inclined surface is formed around the front-side through-hole forming surface in a concave shape in which the front-side through-hole forming surface is a bottom surface with respect to the through-hole forming surface that is a surface on which the through-hole is formed. A plurality of formed recesses are provided side by side, and a plurality of protrusions are formed on the rear surface side in which an inclined surface is formed around the perforated hole forming surface in a convex shape in which the through hole forming surface on the rear surface side becomes a ceiling surface. A plurality of the recesses and the plurality of the protrusions are provided side by side on the rear surface side of the recess, and the plurality of the recesses and the plurality of the protrusions are fitted to each other before and after each other, and a plurality of pairs of the pair of through holes are relatively positioned and arranged. Thereby, a plurality of pairs of the pair of through holes are positioned with respect to the tab-shaped terminals. And having a plurality of ferrite is determined arrangement.

  In the multiplex communication connector according to the present invention, in the above invention, a pair of bus bars having a terminal connecting portion for connecting each tab-shaped terminal of the pair of tab-shaped terminals may be used. And a plurality of positioning concave portions corresponding to the plurality of convex portions on the rear surface of the ferrite so that the ferrite is positioned and arranged with respect to the pair of bus bars fixed by the terminal fixing portion. And an inner housing attached to a rear portion of the outer housing in which a connector fitting portion to be a fitting portion with a mating connector is formed.

  Further, in the multiplex communication connector according to the present invention, in the above invention, the outer housing is a front end of the plurality of ferrites fitted forward with the ferrite arranged in the positioning portion being the rearmost end in the housing direction. And a pressing surface for pressing the ferrite on the side in the housing direction.

  The multiplex communication connector according to the present invention is characterized in that the plurality of ferrites are arranged by fitting the plurality of recesses and the plurality of protrusions in front and rear of each other, thereby holding each of the plurality of ferrites. Since the plurality of ferrites can be relatively positioned and arranged without providing a plurality of ferrites, it is possible to prevent the mounting positions of the plurality of ferrites from being shifted from each other, thereby preventing the noise removal performance from being lowered.

FIG. 1 is an exploded perspective view of a multiplex communication connector according to an embodiment of the present invention. FIG. 2 is an exploded sectional view of the multiplex communication connector according to the embodiment of the present invention. FIG. 3 is a sectional view of the multiplex communication connector according to the embodiment of the present invention. FIG. 4 is a sectional view taken along line AA of the multiplex communication connector shown in FIG.

  Hereinafter, preferred embodiments of a multiplex communication connector according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is an exploded perspective view of a multiplex communication connector 1 according to an embodiment of the present invention. FIG. 2 is an exploded sectional view of the multiplex communication connector 1 according to the embodiment of the present invention. FIG. 3 is a sectional view of the multiplex communication connector 1 according to the embodiment of the present invention. FIG. 4 is a sectional view taken along line AA of the multiplex communication connector 1 shown in FIG.
The multiplex communication connector according to the first embodiment of the present invention is used, for example, for connecting a communication line arranged to control a plurality of electrical components mounted on a vehicle by communication.
The multiplex communication connector 1 has a connector housing 10 and a plurality of ferrites 40 and a pair of bus bars 50 that are incorporated inside the connector housing 10.

First, the plurality of ferrites 40 will be described.
Each ferrite 40 is a magnetic substance having a rectangular outer shape, and a plurality of pairs of through holes 41 into which a pair of tab-shaped terminals 51 of a pair of bus bars 50 to be described later are inserted are provided side by side. On the front side, the front-side through-hole forming surface 42a is inclined toward the periphery of the front-side through-hole forming surface 42a in a concave shape on the front side with respect to the through-hole forming surfaces 42a and 42b on which the holes 41 are formed. A plurality of concave portions 44a having the surface 43a are provided side by side.

  Each of the ferrites 40 has a plurality of concave portions 44a on the rear surface side, in which a convex portion 44b in which an inclined surface 43b is formed around the through hole forming surface 42b in a convex shape in which the rear side through hole forming surface 42b becomes a ceiling surface. Are provided side by side on the rear side.

  Further, each ferrite 40 has an outer edge surface 40a formed on the front surface so as to border the outer shape of the ferrite 40, and the outer edge surface 40a is pressed in a housing direction by a pressing surface 22a of the outer housing 20 described later. It is a pressed surface.

  The plurality of ferrites 40 are fitted with the plurality of concave portions 44a and the plurality of convex portions 44b before and after each other, and the plurality of pairs of through holes 41 are relatively positioned and arranged, so that the tab-shaped terminals 51 are formed. On the other hand, a plurality of pairs of through holes 41 are positioned and arranged relatively to prevent relative displacement.

Next, the pair of bus bars 50 will be described.
Each busbar 50 of the pair of busbars 50 is formed by subjecting a plate-shaped conductive member to press working or the like.
Each bus bar 50 has a plurality of tab-shaped terminals 51 and a terminal connecting portion 52 that connects the plurality of tab-shaped terminals 51.

Next, the connector housing 10 will be described.
The connector housing 10 is made of an insulating material such as a synthetic resin, and has an outer housing 20 and an inner housing 30 that is assembled to a rear portion of the outer housing 20.

  The outer housing 20 is formed with a connector fitting portion 25 that is a fitting portion with a mating connector (not shown), and a pressing surface 22a that presses the plurality of ferrites 40 in the housing direction with the inner housing 30 assembled to the rear portion. The pressed wall portion 22, the fitting portion 23 serving as a fitting portion with the inner housing 30, and an engaging portion that engages with the engaged portion 37 of the inner housing 30 in a state where the inner housing 30 has been assembled. 24.

The connector fitting portion 25 has a hood shape in which a fitting space 25a into which a mating connector is fitted is formed, and the tab-shaped terminals 51 of the pair of bus bars 50 penetrate through the bottom wall 21 forming the bottom surface of the fitting space 25a. A plurality of through holes 21a are formed.
In the connector fitting portion 25, each tab-shaped terminal 51 of the pair of bus bars 50 projects from the bottom wall 21 toward the fitting space 25a.

  The pressing wall portion 22 is a part of the bottom wall 21, and a surface facing the ferrite 40 when the inner housing 30 is assembled is a pressing surface 22 a that presses the plurality of ferrites 40 in the housing direction. .

The fitting portion 23 is a portion fitted to the inner housing 30 so as to cover the side peripheral surface of the assembled inner housing 30.
The fitting portion 23 also functions as a ferrite housing portion that forms a ferrite housing space 23a for housing a plurality of ferrites 40.

  The engagement portion 24 is provided so as to project from a rear portion of the outer housing 20. More specifically, the engagement portions 24 are provided so as to protrude from inner surfaces of both ends of the inner wall surface of the fitting portion 23 facing each other.

  The inner housing 30 includes a positioning portion 31 for positioning and positioning the ferrite 40, a ferrite holding portion 33 for holding the ferrite 40 disposed on the positioning portion 31, and a pair of terminals for fixing the respective terminal connecting portions 52 of the pair of bus bars 50. It has a terminal fixing portion 36 and an engaged portion 37 engaged with the engaging portion 24 of the outer housing 20.

  The positioning portion 31 has a plurality of protrusions 44b corresponding to the plurality of protrusions 44b on the rear surface of the ferrite 40 such that the ferrite 40 is positioned and arranged with respect to the plurality of tab-shaped terminals 51 of the pair of bus bars 50 fixed by the terminal fixing portion 36. The positioning recess 32 is provided.

  In each positioning recess 32, a through hole 32b is formed on the bottom surface, through which a pair of tab-shaped terminals 51 of a pair of bus-bars 50 fixed to a pair of terminal fixing portions 36 is inserted. A plurality of inclined surfaces 32a are formed such that the surface on which the through hole 32b is formed is the bottom surface.

  Each tab-shaped terminal 51 of the pair of bus bars 50 positioned and fixed to the inner housing 30 by each terminal fixing portion 36 is configured to protrude toward the ferrite accommodation space 23a through the through hole 32b of each positioning recess 32. .

  The ferrite 40 arranged on the positioning portion 31 is positioned and arranged so as to coincide with the center of the tab-shaped terminal 51 inserted through the center of each of the plurality of pairs of through holes 41.

  The ferrite holding portion 33 includes an enclosing wall portion 34 formed of a wall surrounding the outer peripheral surface of the ferrite 40 disposed on the positioning portion 31, and a plurality of pairs of ferrite holding pieces 35 for holding the ferrite 40 disposed on the positioning portion 31. And

  The plurality of pairs of ferrite sandwiching pieces 35 are provided so as to sandwich both side surfaces of the ferrite 40 at a plurality of locations at corresponding positions in each set of the pair of through holes 41 of the ferrite 40 arranged in the positioning portion 31. Have been.

  The pair of ferrite holding pieces 35 of each set are provided with a base end on the inner surface of the enclosing wall portion 34, and a distal end portion is bent and bent along the side surface of the ferrite 40 arranged on the positioning portion 31. I have.

The pair of terminal fixing portions 36 are portions into which the respective terminal connecting portions 52 of the pair of bus bars 50 are press-fitted.
Each terminal fixing portion 36 has a pressure inlet formed on the rear surface of the inner housing 30, and each tab-shaped terminal is inserted into a through hole 32 b of each positioning recess 32 from the back surface side of the wall where the positioning portion 31 is formed. This is a portion where the terminal connecting portion 52 is press-fitted and fixed.

  The engaged portion 37 is provided as a pair of concave portions on the side peripheral surface of the inner housing 30 so as to be engaged with the pair of engaging portions 24 of the outer housing 20.

Next, the procedure for assembling the multiplex communication connector 1 will be described.
First, the worker attaches the pair of bus bars 50 to the inner housing 30.
More specifically, the operator press-fits and fixes each terminal connecting portion 52 of the pair of bus bars 50 to the corresponding terminal fixing portion 36 of the inner housing 30.

Next, the worker arranges a plurality of ferrites 40 in the inner housing 30 in a stacked manner.
More specifically, the operator inserts the tab-shaped terminals 51 of the pair of busbars 50 that have been completely attached to the inner housing 30 into the pair of through-holes 41 of each ferrite 40 and places the ferrite disposed on the front side. The plurality of convex portions 44b provided on the rear surface of the ferrite 40 and the plurality of concave portions 44a provided on the front surface of the ferrite 40 disposed on the rear side are fitted and stacked on the inner housing 30.
In this embodiment, the rear ferrite 40 is the rearmost ferrite 40 of the plurality of ferrites 40. Therefore, the ferrite 40 is positioned by the positioning unit 31 and is positioned by the ferrite holding unit 33. Is held by
For this reason, the ferrite 40 arranged on the rear side is positioned and arranged with respect to the corresponding tab-shaped terminal 51 of the pair of bus bars 50 in which each of the plurality of pairs of through holes 41 is fixed to the terminal fixing portion 36. .

Further, the plurality of concave portions 44a and the plurality of convex portions 44b are fitted to each other before and after each other, and the plurality of pairs of through holes 41 are relatively positioned and arranged.
For this reason, as with the ferrite 40 arranged on the rear side, the ferrite 40 arranged on the front side also corresponds to the pair of busbars 50 each having a plurality of pairs of through holes 41 fixed to the terminal fixing portion 36. It is positioned and arranged with respect to the tab-shaped terminal 51.

Finally, the worker completes the assembly of the multiplex communication connector 1 by assembling the inner housing 30 to the rear portion of the outer housing 20.
More specifically, the fitting portion 23 of the outer housing 20 is fitted to the engaged portion 37 of the inner housing 30 while fitting the fitting portion 23 at the rear portion of the outer housing 20 so as to cover the side peripheral surface of the inner housing 30. Is engaged.

When the inner housing 30 is assembled to the rear portion of the outer housing 20 in this manner, the pressing surface 22a of the outer housing 20 is brought into contact with the pressed surface 40a of the ferrite 40 arranged on the front side, and the ferrite 40 laminated on the rear side. The plurality of ferrites 40 are pressed in the housing direction.
Therefore, the plurality of ferrites 40 are completely sandwiched between the pressing surface 22a of the outer housing 20 and the inclined surfaces 32a of the positioning recesses 32 of the inner housing 30 in the stacking direction, so that the ferrites 40 are completely contained in the ferrite accommodation space 23a. Fixed to

  Thereby, the plurality of ferrites 40 are placed in the ferrite accommodating space in a state where the center of each through hole 41 of the plurality of pairs of through holes 41 and the center of the tab-shaped terminal 51 inserted into each through hole 41 match. It is completely fixed in 23a.

  In the multiplex communication connector 1 according to the embodiment of the present invention, the plurality of ferrites 40 are arranged by fitting the plurality of concave portions 44a and the plurality of convex portions 44b before and after each other, so that each of the plurality of ferrites 40 is formed. The plurality of ferrites 40 can be relatively positioned and arranged without providing holding means for holding, so that it is possible to prevent the mounting positions of the plurality of ferrites from being shifted from each other, thereby preventing the noise removal performance from lowering. .

  Further, in the multiplex communication connector 1 according to the embodiment of the present invention, the ferrite 40 is fixed to the terminal by fixing the ferrite 40 to the positioning portion 31 having the plurality of positioning concave portions 32 corresponding to the plurality of convex portions 44b on the rear surface. Since the ferrites 40 are positioned and arranged with respect to the pair of bus bars 50 fixed by the portion 36, the plurality of ferrites 40 that are relatively positioned and arranged with respect to the ferrite 40 that is positioned and arranged on the positioning portion 31 are arranged on the pair of bus bars 50. It can be positioned and arranged with respect to.

In addition, the multiplex communication connector 1 according to the embodiment of the present invention includes the ferrite 40 disposed on the positioning portion 31 of the inner housing 30 as the rearmost row in the housing direction, and the frontmost side of the plurality of ferrites 40 fitted forward. By pressing the ferrite 40 in the housing direction by the pressing surface 22 a of the outer housing 20, the plurality of ferrites 40 can be sandwiched and fixed between the pressing surface 22 a and the positioning recess 32.
As described above, the multiplex communication connector 1 according to the embodiment of the present invention is configured such that the plurality of ferrites 40 are sandwiched and fixed between the pressing surface 22a and the positioning concave portion 32, so that a pair of The plurality of ferrites 40 positioned relative to the bus bar 50 can be stably fixed only by the pressing force in the housing direction by the pressing surface 22a.

  Although the multiplex communication connector 1 according to the embodiment of the present invention has two ferrites 40 as an example, the number of ferrites 40 may be plural, and may be three or more.

  In the multiplex communication connector 1 according to the embodiment of the present invention, a plurality of pairs of ferrite holding pieces 35 sandwich the ferrite 40 arranged on the positioning portion 31 as an example. The ferrite 40 held by the ferrite holding piece 35 may be a ferrite 40 other than the ferrite 40 arranged on the positioning portion 31. For example, a plurality of pairs of ferrite holding pieces 35 may hold the ferrite 40 disposed on the front side in this embodiment.

  As described above, the invention made by the inventor has been specifically described based on the embodiments of the above-described invention. However, the present invention is not limited to the above-described embodiments of the invention, and does not depart from the gist of the invention. Can be variously changed.

DESCRIPTION OF SYMBOLS 1 Multiplexing connector 10 Connector housing 20 Outer housing 21 Bottom wall 21a Through hole 22 Pressing wall 22a Pressing surface 23 Fitting part (ferrite housing part)
23a Ferrite accommodation space 24 Engagement part 25 Connector fitting part 25a Fitting space 30 Inner housing 31 Positioning part 32 Positioning concave part 32a Inclined surface 32b Through hole 33 Ferrite holding part 34 Enclosure wall part 35 Ferrite holding piece 36 Terminal fixing part 37 Contact Joint 40 Ferrite 40a Outer edge surface (pressed surface)
41 Through-hole 42a, 42b Through-hole forming surface 43a, 43b Inclined surface 44a Concave portion 44b Convex portion 50 Bus bar 51 Tab-shaped terminal 52 Terminal connection portion

Claims (3)

A plurality of pairs of through holes into which a pair of tab-shaped terminals are inserted are provided side by side, and a front side is a front side with respect to a through hole forming surface which is a surface on which the pair of through holes is formed. A plurality of concave portions in which an inclined surface is formed around the front-side through-hole forming surface in a concave shape in which the through-hole forming surface is a bottom surface are provided side by side,
On the rear surface side, a plurality of convex portions in which an inclined surface is formed around the through hole forming surface in a convex shape in which the through hole forming surface on the rear side becomes a ceiling surface are provided side by side on the rear surface side of the plurality of concave portions. ,
A plurality of the concave portions and a plurality of the convex portions are fitted to each other before and after each other, and a plurality of sets of the pair of through holes are relatively positioned and arranged. A multiplex communication connector comprising a plurality of ferrites in which a pair of through holes are positioned and arranged. A pair of terminal fixing portions for fixing the respective terminal connecting portions of a pair of bus bars having a terminal connecting portion for connecting the respective tab-shaped terminals of the pair of tab-shaped terminals, and the pair of terminal fixing portions fixed by the terminal fixing portions; A positioning portion having a plurality of positioning concave portions corresponding to the plurality of convex portions on the rear surface of the ferrite so that the ferrite is positioned and arranged with respect to a bus bar; and a connector serving as a fitting portion with a mating connector. 2. The multiplex communication connector according to claim 1, further comprising an inner housing attached to a rear portion of the outer housing in which the fitting portion is formed. 3. The outer housing,
The ferrite disposed at the positioning portion has a pressing surface that presses the ferrite at the foremost end side of the plurality of ferrites fitted forward with the ferrite as the rearmost end in the housing direction in the housing direction. The multiplex communication connector as described in the above.

Images