JP4727464B2 - Joint connector - Google Patents

Description

  The present invention relates to a joint connector that houses a plurality of terminals having external connection portions at both ends.

  As a conventional joint connector, one in which two bus bars each having a terminal portion are assembled in a connector housing is known (see, for example, Patent Document 1).

  As shown in FIG. 6, the joint connector disclosed in Patent Document 1 has a plurality of terminal portions 102 at both ends of two bus bars 101. The bus bar 101 has a terminal portion 102 on one side assembled in the mounting hole 104 of the opening part 103, and the opening part 103 assembled with the bus bar 101 is fitted into the housing body 105, whereby the terminal on the other side of the bus bar 101. The part 102 is assembled in the mounting hole 106 of the housing body 105.

Japanese Patent Laying-Open No. 2003-77600 (FIG. 1)

  However, the conventional joint connector disclosed in Patent Document 1 uses a bus bar 101 having terminal portions 102, that is, a plate-like conductive member in which a plurality of terminal portions 102 are provided on the same plane by pressing. In addition, a conduction path in the plate direction (lateral direction) of each bus bar 101 can be formed, but each bus bar 101 arranged vertically (in the vertical direction) or for each bus bar 101 among the plurality of terminal portions 102. Thus, it is not possible to form a conduction path for each of the selected terminal portions 102.

  In addition, since the bus bar 101 is a plate-like conductive member provided with a plurality of terminal portions 102 on the same plane, when a circuit change occurs, the bus bar 101 newly provided with the terminal portions 102 is created, or In addition to the two bus bars 101, a new bus bar 101 is added. As a result, the number of processing steps is increased and it is difficult to improve productivity.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to extend the degree of freedom of circuit formation as well as the horizontal and vertical directions of the terminals and improve productivity. It is to provide a joint connector that can be used.

1) joint connector according to the present invention includes a first connector housing which one of the mating connector mating, and a second connector housing which other mating connector fitting, said first connector housing and the second a circuit board fixed sandwiched between the connector housing, have a external connection at both ends, said first connector housing, the circuit board and the inserted into the second connector housing first connector housing and A joint connector including a plurality of terminals projecting from the external connection portion to a second connector housing , wherein the circuit board includes a plurality of terminal insertion holes through which the terminals are inserted, and the selected terminal insertion. and a printed wiring for connecting the hole with conductive path, provided so as to extend the circuit portion of the printed wiring up to the inner peripheral surface of the said terminal insertion hole, Each of the first connector housing and the second connector housing includes a partition wall having a plurality of terminal holding holes through which the terminals are inserted, and the terminals are press-fitted in pressure contact with the terminal insertion holes; A wedge-shaped projection having a taper surface in the insertion direction from the press-fit portion and a rear end side in the insertion direction from the press-fit portion and abutting against the partition wall of the connector housing. The terminal is inserted through the terminal holding hole of the partition wall of the first connector housing, the terminal insertion hole of the circuit board, and the terminal holding hole of the partition wall of the second connector housing in this order. , the press-fit portion, wherein by being pressed into the terminal insertion hole and the press-fit portion and the printed circuit are electrically connected, projecting said second of said wedge-shaped Is pressed into the terminal holding holes of the connector housing partition wall is fixed to the terminal holding hole, said the contact portion to prevent further insertion of the contact with the terminals on the partition wall of the first connector housing It is characterized by.

According to the invention described in 1) above, since it is divided into two along the mating direction with the mating connector, between one connector housing and the other connector housing, the pair of connector housings The circuit board can be easily arranged, and the terminal is inserted into the terminal insertion hole of the circuit board, so that the press-fit part is press-fitted into the terminal insertion hole and securely held, and the printed wiring on the circuit board Electrically connected to the board. Moreover, since the joint connector is divided into two parts, it can be disassembled.
Since the printed wiring board forms conduction paths corresponding to the rows and columns of the terminal insertion holes on the circuit board, a conduction circuit corresponding to the conduction path of the printed wiring board is formed independently for each terminal. be able to. Even if a circuit change occurs, the change can be easily performed according to the printed wiring board having the changed circuit. Therefore, not only the horizontal and vertical directions of the terminals but also the degree of freedom of circuit formation can be expanded and productivity can be improved.

2) The joint connector according to the present invention is the joint connector according to 1) above, wherein the first connector housing and the second connector housing are connector housings having the same shape, and the first connector The housing and the second connector housing are provided with engaging protrusions and protrusion receivers for engaging and integrating with each other.

  According to the invention described in 2) above, the circuit board can be easily arranged by engaging one connector housing and the other connector housing having the same shape with each other, and the assembly of the joint connector can be easily performed. , Increase work efficiency, improve productivity, and reduce costs,

  According to the joint connector of the present invention, it is possible to solve the problem that a conduction circuit cannot be formed in the vertical direction or an arbitrary direction, an increase in processing man-hours accompanying a circuit change, and a difficulty in improving productivity. As a result, not only the horizontal and vertical directions of the terminals but also the degree of freedom in circuit formation can be expanded and productivity can be improved.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings.

  1 is an exploded perspective view of an embodiment of the joint connector of the present invention, FIG. 2 is an external perspective view of terminals used in the joint connector shown in FIG. 1, and FIG. 3 is a plan view of a circuit board used in the joint connector shown in FIG. 4 is a longitudinal sectional view around the terminals of the joint connector shown in FIG. 1, and FIG. 5 is a perspective view showing a state where the wire harnesses are connected by the joint connector shown in FIG.

  As shown in FIG. 1, a joint connector 10 according to an embodiment of the present invention includes one connector housing 11, the other connector housing 12, a plurality of 24 terminals 13, and a circuit board 14. ing. The one connector housing 11 and the other connector housing 12 are connector housings having the same shape. Therefore, the housing of the joint connector 10 is composed of two divided connector housings 11 and 12 having the same shape with the circuit board 14 interposed therebetween.

  The connector housings 11 and 12 are made of non-conductive resin and are formed in a rectangular tube shape. The connector housings 11 and 12 have a hood portion 15 on the outer periphery, and an engagement protrusion 16 and a protrusion receiver 20 on both sides. . Further, the partition wall 21 has a total of 24 terminal holding holes 22, which is the same as the number of terminals 13, 6 in the horizontal direction and 4 in the vertical direction. The terminal holding hole 22 penetrates the partition wall 21 in the connector fitting direction. A circuit board housing part 23 is provided in the front part of the partition wall 21.

  A total of 24 terminals 13 are used, 6 in the horizontal row and 4 in the vertical row, each of which is a single unit, and is formed without being connected like a bus bar. These terminals 13 include a main body portion 24, a first external connection portion 25, and a second external connection portion 26, and are made of a conductive metal that is not easily deteriorated by heat, such as brass or iron, which is a general terminal material. It is created by pressing a plate member.

  The circuit board 14 has a total of 24 terminal insertion holes 28 in a plate-shaped board body 27, six in the horizontal direction and four in the vertical direction. The terminal insertion hole 28 is penetrated through the substrate body 27.

  As shown in FIG. 2, the terminal 13 has a main body portion 24 formed in an outer shape larger than both external connection portions 25 and 26, and a press fit portion 29 is formed on the first external connection portion 25 side. In addition, a pair of contact portions 30 and 30 that contact the partition wall 21 of the connector housings 11 and 12 are formed on the second external connection portion 26 side. Since the contact portion 30 contacts the partition wall 21, further insertion of the terminal 13 is prevented.

  The press-fit portion 29 is formed in an elliptical ring shape and can be elastically deformed in the direction of diameter reduction, and is press-fitted into the terminal insertion hole 28 by being press-fitted into the terminal insertion hole 28 of the circuit board 14. Is done. At this time, the circuit portion of the printed wiring board (see FIG. 3) 31 formed on the circuit board 14 extends into the terminal insertion hole 28, and the printed wiring board 31 and the press-fit portion 29 are electrically connected. Connected to.

  The first external connection portion 25 is formed to protrude in the shape of a shaft from the front side in the insertion direction of the main body portion 24, and the second external connection portion 26 is protruded in the shape of a shaft from the rear side in the insertion direction that is the base end side of the main body portion 24. Is formed. Two pairs of projections 25 a are provided on the first external connection portion 25 on the press fit portion 29 side. The protrusion 25a has a wedge shape having a taper surface in the insertion direction, and is press-fitted and fixed in the terminal holding hole 22 of the partition wall 21 of the connector housings 11 and 12 so as not to be removed backward (see FIG. 4).

  As shown in FIG. 3, the circuit board 14 electrically connects each of the selected terminal insertion holes 28, and the printed wiring board 31 forms a conduction path. For example, the printed wiring board 31 is electrically connected to the conduction land 32 in the rightmost terminal insertion hole 28 in the uppermost row in FIG. 3 and in the second terminal insertion hole 28 from the right in the third row from the top. An arbitrary conduction pattern is set so that the land 32 and the conduction land 32 in the third and fourth terminal insertion holes 28 from the right in the lowermost row are connected. At this time, the printed wiring board 31 can easily form a conduction path in any selected one of the terminal insertion holes 28.

  As shown in FIG. 4, in the joint connector 10, the circuit board 14 is housed in the circuit board housing part 23 of one connector housing 11 and the circuit board housing part 23 of the other connector housing 12. The engagement protrusion 16 and the protrusion receiver 20 are integrally coupled by being engaged with the protrusion receiver 20 and the engagement protrusion 16 of the other connector housing 12, and the circuit board 14 is connected to both the connector housings 11 and 12. It is pinched and fixed. The terminal 13 is press-fitted into the terminal holding hole 22 of the partition wall 21 of one connector housing 11 with the first external connection portion 25 first, and is press-fitted into the terminal insertion hole 28 of the circuit board 14, The connector housing 12 is inserted into the terminal holding hole 22 of the partition wall 21.

  At this time, in the terminal 13 before press-fitting, the outer diameter of the press-fit portion 29 is slightly larger than the inner diameter of the terminal insertion hole 28 of the circuit board 14. Then, the terminals 13 are press-fitted into the terminal insertion holes 28 of the circuit board 14, whereby the press-fit portion 29 is elastically deformed in the diameter reducing direction and is press-fitted into the terminal insertion holes 28. At this time, the circuit portion of the printed wiring board 31 extended into the terminal insertion hole 28 and the press-fit portion 29 are electrically connected. The abutment portion 30 abuts against one connector housing 11 to prevent further insertion, and the two pairs of protrusions 25a are press-fitted and fixed in the terminal holding holes 22 of the other connector housing 12 so that they cannot be removed backward. The Thereby, since the terminal 13 is reliably hold | maintained at the terminal insertion hole 28, the alignment of both the external connection parts 25 and 26 is securable.

  Then, as shown in FIG. 5, one mating connector 40 connected to one end of the wire harness W <b> 2 among the wire harnesses W <b> 1 to W <b> 3 is inserted into the hood portion 15 of one connector housing 11, and the other The other mating connector 50 connected to the other end portion of the wire harness W3 is inserted into the hood portion 15 of the connector housing 12.

  At this time, since the protrusion 25a is press-fitted and fixed in the terminal holding hole 22 of the other connector housing 12, the terminal 10 does not come back backward when the other mating connector 50 is fitted. As a result, one other-side terminal (not shown) housed in one of the other-side connectors 40 is electrically connected to the second external connection portion 26 and at the same time not shown in the other-side connector 50. The other counterpart terminal is electrically connected to the first external connection portion 25, and the other counterpart terminal is connected to the other through the one terminal 13, the printed wiring board 31 of the circuit board 14, and the other terminal 13. Connected to the other terminal. That is, when the mating connectors 40 and 50 are fitted to the joint connector 10, the wire harness W2 and the wire harness W3 are electrically connected via the printed wiring board 31 of the circuit board 14.

  As described above, according to the joint connector 10 according to an embodiment of the present invention, the press fit portion 29 is inserted into the terminal insertion hole 28 by inserting the main body portion 24 of the terminal 13 into the terminal insertion hole 28 of the circuit board 14. The hole 28 is press-fitted and securely held. The main body 24 of the terminal 13 is electrically connected to the printed wiring board 31 on the circuit board 14. Since the printed wiring board 31 forms a conduction path in either the row or the column of the terminal insertion holes 28 on the circuit board 14, a conduction circuit corresponding to the conduction path of the printed wiring board 31 is provided for each terminal 13. Can be formed independently. Even if a circuit change occurs, the change can be easily performed according to the printed wiring board 31 having the changed circuit. Thereby, not only the horizontal direction and the vertical direction of the terminal 13 but also the degree of freedom of circuit formation can be expanded and productivity can be improved.

  Further, according to the joint connector 10 according to an embodiment of the present invention, the press fit portion 29 is pressed against the terminal insertion hole 28 by inserting the main body portion 24 of the terminal 13 into the terminal insertion hole 28 of the circuit board 14. Since it is electrically connected to the printed wiring board 31 at the same time as being inserted, the electrical connection can be reliably performed only by mechanical assembly without using a joining means such as soldering.

  Moreover, according to the joint connector 10 which is one embodiment of the present invention, the engagement protrusion 16 and the protrusion receiver 20 of one connector housing 11 having the same shape, and the protrusion receiver 20 and the engagement protrusion 16 of the other connector housing 12 are provided. Since the connector board 11 is sandwiched between the connector housing 11 and the other connector housing 12, the joint connector 10 can be easily assembled and the working efficiency can be improved. Productivity can be improved and costs can be reduced. Moreover, since the joint connector is divided into two parts, it can be disassembled.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. For example, since the number of terminals is appropriately set according to the circuit configuration for each vehicle type to which the joint connector is applied, it is not limited at all.

  Moreover, as a circuit board, it may replace with the thing of the single structure shown in figure, and the thing of the several layer which laminated | stacked the several circuit board may be used. Of course, also in this case, the circuit board connecting portion is electrically connected to the printed wiring board.

It is a disassembled perspective view of one Embodiment of the joint connector of this invention. It is an external appearance perspective view of the terminal used for the joint connector shown in FIG. It is a top view of the circuit board used for the joint connector shown in FIG. It is a longitudinal cross-sectional view around the terminal of the joint connector shown in FIG. It is a perspective view which shows the state which connected the joint connector shown in FIG. 1 between wire harnesses. It is the schematic of the conventional joint connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Joint connector 11 One connector housing 12 The other connector housing 13 Terminal 14 Circuit board 16 Engagement protrusion 20 Protrusion receptacle 24 Main body part 25 1st external connection part 25a Protrusion 26 2nd external connection part 28 Terminal insertion hole 30 Contact part 29 Press-fit part 31 Printed wiring board

Claims (2)

A first connector housing that fits with one mating connector, a second connector housing that mates with the other mating connector, and the first connector housing and the second connector housing are sandwiched and fixed. and a circuit board that, possess an external connection at both ends, the said first connector housing, wherein is inserted into the circuit board and the second connector housing first connector housing and the second connector housing external connections And a plurality of terminals protruding, a joint connector comprising :
The circuit board includes a plurality of terminal insertion hole in which the pin is inserted, and a printed wiring for connecting the terminal insertion hole that is selected in the conducting path, the circuit portion of the printed wiring in the terminal insertion hole and it extends to an inner circumferential surface,
Each of the first connector housing and the second connector housing includes a partition wall having a plurality of terminal holding holes through which the terminals are inserted,
The terminal includes a press-fit portion that press-contacts the terminal insertion hole, a wedge-shaped protrusion having a tapered surface in the insertion direction from the press-fit portion, and a insertion direction from the press-fit portion. An abutting portion that abuts against the partition wall of the connector housing,
The terminal is inserted in the order of the terminal holding hole of the partition wall of the first connector housing, the terminal insertion hole of the circuit board, and the terminal holding hole of the partition wall of the second connector housing,
The press-fit part is electrically connected to the printed wiring by being press-fitted into the terminal insertion hole,
The wedge-shaped protrusion is press-fitted into the terminal holding hole of the partition wall of the second connector housing and fixed in the terminal holding hole;
The joint connector, wherein the contact portion contacts the partition wall of the first connector housing to prevent further insertion of the terminal . The first connector housing and the second connector housing are connector housings having the same shape, and an engagement protrusion for engaging and integrating the first connector housing and the second connector housing with each other. The joint connector according to claim 1, further comprising a projection receiver.

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