JP2006012717A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable to connect both of a flat wiring material and discrete wires to a circuit board or the like with the use of a common connector. <P>SOLUTION: The connector is composed of a wiring material side connector C1 integrally holding with a housing 20 the discrete wires 3 each with a terminal 5 mounted and the flat wiring material 6 with conductors 6a exposed at a terminal end, and a substrate side connector C2 holding counterpart terminals 12B corresponding to the terminals 5 and counterpart terminals 12A corresponding to the conductors 6a in a housing 10. The housing 20 holds each wire 3, 6 so that the discrete wires 3 are arrayed in a row and that row is aligned on the flat wiring material 6 in parallel with each other. On the other hand, the housing 10 holds the terminals 12B in an alignment corresponding to the terminals 5, and the terminals 12A in an alignment corresponding to the conductors 6a. Furthermore, it is so structured that each terminal 12B comes in contact with a terminal 5 each discrete wire 3 and each terminal 12A in contact with each conductor 6a of the flat wiring material 6 by insertion-coupling of the both housings 10, 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention provides a connector that enables a flat wiring member such as a flat cable, a ribbon electric wire, and an FPC (Flexible Printed Circuit) having flat conductors arranged side by side to be electrically connected to a circuit board or the like with a common connector. It is about.

  Conventionally, circuit boards are electrically connected to each other via a wiring material. As the wire type of the wiring material used, a flat wiring material such as a discrete wire, a flat cable, a ribbon electric wire, or an FPC (Flexible Printed Circuit) is generally used, and is used properly according to the purpose of use. For example, discrete wires are used when the operating voltage is high, and flat wiring materials are often used when it is required to route a large number of signal lines together in a small space.

  By the way, when the circuit boards are electrically connected to each other through the wiring material, there are many cases in which both the flat wiring material and the discrete wire are actually connected to the common circuit board. In general, a connector is provided for each type of material and connected to a circuit board.

  However, when connecting a wiring material to a circuit board using a connector for each type of wiring material in this way, it is necessary to design and manufacture the connector for each wiring material, and the design burden is large. There is also a complexity in terms of management of the connector housing. Furthermore, work such as connection of the wiring material to the circuit board must be performed for each wiring material, and workability is poor.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to connect both a flat wiring material and a discrete wire to a circuit board or the like using a common connector.

  In order to solve the above-described problems, a connector according to claim 1 of the present invention includes a plurality of storage portions capable of storing the first terminals of discrete wires each having a first terminal attached to a terminal portion, and a terminal portion. A first housing having a housing portion capable of housing the end portion of the flat wiring member with the conductor exposed to the outside, and storing the first terminal and the flat wiring material in the housing portion, respectively. A first connector integrally holding a plurality of discrete wires and a flat wiring member by the first housing; a second housing that can be fitted to the first housing; and the first terminal fitted to the second housing. And a second connector holding a third terminal that can be fitted to the conductor of the flat wiring member, and the first housing includes the plurality of discs. While holding the discrete wire and the flat wiring material so that the line is aligned in a row and the row and the flat wiring material are parallel to each other, the second housing is Holding the second terminal in an array corresponding to the first terminal housed in the first housing and holding the third terminal in an array corresponding to the conductor of the flat wiring member housed in the first housing; When the two housings are fitted to each other, the second terminal is fitted to the first terminal mounted on the discrete wire, and the third terminal is fitted to the conductor of the flat wiring member. is there.

  According to such a connector, for example, when the second connector is mounted on the circuit board as a mounting type connector, the first housing of the first connector and the second housing of the second connector are fitted and the two connectors are connected. Each discrete wire is electrically connected to the on-board circuit via the first terminal and the second terminal, while each conductor of the flat wiring member is electrically connected to the on-board circuit via the third terminal. It will be. Therefore, both the discrete wire and the flat wiring member can be collectively connected to the circuit board using the common second connector.

  In this connector, the first terminal has a tab-shaped contact piece at the tip thereof, while the second terminal and the third terminal each have a common connection portion including a contact piece and a support piece, The tab-shaped contact piece of the first terminal and the conductor of the flat wiring member are sandwiched between the contact piece and the support piece, and when the first housing and the second housing are fitted to each other, The tab-like contact piece of one terminal is inserted between the contact piece of the second terminal and the support piece so that the contact pieces come into contact with each other, while the end portion of the flat wiring member is the contact piece of the third terminal and the support piece It is preferable that the conductor is configured to be in contact with the contact piece.

  According to such a configuration, since at least the main part (connection part) of the second terminal and the third terminal on the second connector side is shared, the design burden of the second and third terminals is reduced. There are benefits. In addition, since the terminal housing chamber of the second housing can be shared, the housing structure of the second housing can be simplified.

  In this case, if the second terminal and the third terminal have a common shape (Claim 3), not only the design burden of the second and third terminals can be reduced, but also the mold can be shared. And there is an advantage that the assembly workability is improved.

  The connector according to claim 2 or 3, wherein the second housing has a plate-like support member that can be attached to and detached from the main body portion, and an end portion of the flat wiring member is provided on the support member. The flat wiring member and the support member are integrally inserted into the second housing in a stacked state, so that the exposed portion of the conductor protrudes in the connector connecting direction, and the protruding portion is supported by the support member. The flat wiring member is configured to be held in a state, and a terminal support portion having the same shape as the protruding portion of the support member is provided at a location corresponding to the storage portion of the first terminal. 2 configured to support the tab-like contact pieces of the first terminals held by the housing in a state of protruding in the connector connecting direction, and the first housing and the second housing The tab-like contact piece of the first terminal and the terminal support portion are integrally inserted between the contact piece and the support piece of the second terminal, and the end portion of the flat wiring member It is preferable that the support member and the support member are integrally inserted between the contact piece and the support piece of the third terminal.

  According to this configuration, the contact pieces of the first terminals can be prevented from being deformed and the contact pieces of the second terminals can be brought into contact with the first terminals more reliably. Similarly, with respect to the flat wiring material, it is possible to prevent the terminal portion from being deformed and the like so that the contact pieces of the respective third terminals are brought into contact with the respective conductors of the flat wiring material.

  5. The connector according to claim 1, wherein the first housing holds the first terminals such that an arrangement pitch of the first terminals is equal to an arrangement pitch of the conductors of a flat wiring material, The second housing holds the second and third terminals so that both the arrangement of the second terminals and the arrangement of the third terminals are equal to the arrangement pitch of the flat wiring members, and can be fitted into the second housing. By fitting the third housing of the third connector, in which the flat wiring material is arranged and held in a direction perpendicular to the arrangement direction of the conductors by the third housing, the flat wiring of each third connector is fitted. It is preferable that the second terminal and the third terminal can be brought into contact with the conductor of the material, respectively.

  According to this configuration, the first connector holding the discrete wire and the flat wiring material, or the third connector holding the plurality of flat wiring materials can be connected using the common second connector. A reasonable connector configuration.

  According to the connectors according to claims 1 to 5 of the present invention, it is possible to connect both the discrete wires and the flat wiring material to the circuit board or the like together using a common connector. Accordingly, it is not necessary to design a connector for each wiring member as in the case of using separate connectors for each of the discrete wire and the flat wiring member, and the design burden of the connector is reduced. Moreover, the management burden of the connector housing or the like as a part is reduced. Further, since the connection work of the discrete wire and the flat wiring material to the circuit board or the like can be performed by a single work, the workability is improved.

  Embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic perspective view for explaining an embodiment of a connector according to the present invention, in which a part of a terminal and the like is drawn out. In this figure, C2 is a board-side connector (second connector), which is fixed in a mounted state on the surface of the circuit board P. Reference numeral C1 denotes a wiring material side connector (first connector) which integrally holds two types of wiring materials, that is, a discrete wire 5 and a flat wiring material 6 as wiring materials, and connects these wiring materials to the circuit board P. It is configured.

  The board-side connector C2 has a connector housing 10 (hereinafter abbreviated as “housing 10”) that is elongated in the width direction and includes a fitting recess 10a for the wiring material-side connector C1.

  As shown in FIGS. 2 and 3, the housing 10 has a large number of terminal storage chambers 13 formed in parallel in the width direction (left and right direction in FIG. 2) and in two upper and lower stages. As shown in the figure, the upper and lower terminal storage chambers 13 are alternately provided in a state shifted from each other by a half pitch, whereby the terminal storage chambers 13 are arranged in a staggered pattern as a whole housing.

  Each terminal storage chamber 13 stores a terminal. Of these terminal storage chambers 13, the terminal 12 </ b> A (third terminal) housed in the lower stage and the terminal 12 </ b> B (second terminal) housed in the upper stage are both flexible connecting pieces 14 a ( Female terminal having a U-shaped common connecting portion consisting of a contact piece) and a lower support piece 14b on the front side (the left end in FIG. 3). A portion 14c is provided. And it is each accommodated with respect to each terminal storage chamber 13 by being inserted from the rear side of the housing 10, and each leg part 14c is soldered to the fixing land of the circuit board P, so that each circuit (pattern) on the board is provided. Electrically connected. Of these terminals 12A and 12B, the terminal 12B housed in the upper terminal housing chamber 13 has a leg portion 14c that is longer than the terminal 12A housed in the lower stage. Can be soldered.

  Fixing brackets 15A and 15B for fixing the board-side connector C2 (housing 10) to the circuit board P are inserted into both ends of the housing 10 in the width direction.

  These fixing brackets 15A and 15B have legs 16 as shown in FIGS. 1, 2, and 4 (only the fixing bracket 15A is shown), and these legs 16 are soldered to the circuit board P. Thus, the housing 10 is fixed to the circuit board P.

  Each fixing bracket 15A, 15B has a hook 17a at its front end and is integrally formed with a locking piece 17 (see FIG. 4) which can be flexed and displaced in the width direction within the housing 10, and is fitted with a connector. At the same time, the engaging piece 17 is configured to be engaged with a housing 20 described later of the wiring member side connector C1 to lock both the connectors in the fitted state. That is, these fixing brackets 15A and 15B have a structure having a connector locking function.

  Note that the locking pieces 17 of the fixing brackets 15A and 15B are offset vertically as shown in FIG. This is a contrivance for compactly fitting the fixing brackets 15A and 15B in the housing 10, and as a result, space saving in the width direction of the board-side connector C2 is achieved as will be described later.

  On the other hand, the wiring member side connector C1 includes a connector housing 20 that is elongated in the width direction (hereinafter abbreviated as the housing 20), as shown in FIGS. The housing 20 has a two-stage upper and lower structure, and a plurality of terminal storage chambers 22 (first terminal storage portions) are provided in parallel in the width direction on the upper stage, and the terminals 5 attached to the distal ends of the discrete wires 3. (First terminal) is stored in each terminal storage chamber 22. On the other hand, in the lower stage, an elongated insertion hole 23 (a storage portion for a flat wiring material) is formed in the width direction penetrating in the front-rear direction (connector connection direction), and the end portion of the flat wiring material 6 is combined with a retainer 25 described later. The insertion hole 23 is inserted.

  On the front side of the housing 20, that is, the front end surface in the connector connecting direction, a pair of tongue-like support portions 24 a and 24 b are provided correspondingly to the upper terminal storage chamber 22. Of these support portions 24 a and 24 b, the upper support portion 24 a (terminal support portion) is integrally formed with the housing 20. On the other hand, as shown in FIG. 5, the lower support portion 24b is provided separately from the main body portion of the housing 20, and is a retainer 25 (support member) that is configured to be detachable from the main body portion. ) Is inserted into the main body portion. For convenience of explanation, the “retainer 25” is a name that is removed from the main body portion of the housing 20, and is called a “support portion 24b” when it is attached to the main body portion. One of the symbols is shown and the other symbol is shown in parentheses.

  These support portions 24a and 24b support the end portions of the electric wires held by the housing 20 from the lower side in a state where the end portions protrude from the main body portion of the housing 20 in the connector connecting direction. Specifically, the upper support portion 24a supports the later-described contact piece 5b of the terminal 5 that is mounted on the discrete wire 3 and stored in each terminal storage chamber 22, and is provided on the upper surface of the support portion 24a. 5 and 6A, a plurality of support grooves 26 that open upward and communicate with the inside of the terminal storage chamber 22 are arranged in parallel in the width direction. In addition, a protrusion 27 for preventing the contact piece 5b of the terminal 5 from floating up is provided on the front end wall 26a of each support groove 26 so as to protrude rearward (leftward in FIG. 6).

  On the other hand, the lower support portion 24b (retainer 25) supports the end portion of the flat wiring member 6 inserted into the insertion hole 23, and has a flat support for supporting the flat wiring member 6 on its upper surface. A pair for constraining the wiring member 6 in the left-right direction (width direction) and the surface 32, the projections 33, 36 for restraining the wiring member 6 in the front-rear direction (the front projection 33, the rear projection 36). The side protrusions 35 and a pair of presser portions 34 for preventing the tip end of the flat wiring member 6 from being lifted up are provided.

  Of these support portions 24a and 24b, the side surface of the upper support portion 24a has a locking surface corresponding to the fixing bracket 15B (hook 17a) of the board-side connector C2 on the side surface as shown in FIGS. A portion 28 is integrally formed, and a locking portion 28 (shown in FIG. 11) corresponding to the fixing bracket 15A (hook 17a) is integrally formed on the side surface of the lower support portion 24a (retainer 25). Yes.

  The discrete wire 3 is, for example, a single wire in which a coating (insulating layer) is formed on the outer periphery of a stranded wire, and the terminal 5 is attached to the tip thereof as described above.

  As shown in FIG. 7A, the terminal 5 is a male terminal provided with an electric wire holding portion 5a for holding the discrete wire 3 and a tab-like contact piece 5b provided on the tip side thereof.

  A pair of wire barrels 42 and a pair of insulation barrels 44 standing on both sides of the bottom plate 40 of the terminal 5 are provided side by side in the electric wire holding portion 5a.

  The contact piece 5b includes a connecting portion 47 that extends in the front-rear direction continuously to the bottom plate 40, and a pair of unit contact pieces 46a that are elongated in parallel in the front-rear direction and are parallel to the barrels 42, 44. 46b and a U-shaped cross section. A hook 48 for locking the terminal 5 to the housing 20 is integrally formed at the base end of each unit contact piece 46a, 46b.

  As shown in the figure, the terminal 5 is attached to the discrete wire 3 by removing the coating at the end portion of the discrete wire 3 so that the conductor 3a is exposed to the outside, and the wire barrel 42 is attached to the portion of the conductor 3a. The insulation barrel 44 is respectively crimped to the covering portion on the rear side. Here, the wire barrel 42 is firmly crimped (clamped) so that the tip of the wire barrel 42 bites into the conductor 3a in order to ensure conduction performance and holding power. On the other hand, the insulation barrel 44 holds the discrete wire 3 from the outside of the covering portion so that the tips thereof face each other, and is crimped so that the crimped portion becomes flat. Specifically, as shown in FIG. 8A, the crimp width w (crimping molding width) is sufficiently larger than the crimp height h (crimping molding height), and the crimp height h is the diameter of the discrete wire 3. An insulation barrel 44 is pressure-bonded to the discrete wire 3 so as to be smaller than d (see FIG. 8B). Thereby, the whole electric wire holding part 5a including the discrete wire 3 is made flat.

  The terminals 5 attached to the distal ends of the discrete wires 3 are stored in the terminal storage chambers 22 as described above. The terminal 5 is stored in the terminal storage chamber 22 as shown in FIG. 7B. The terminal 5 faces sideways, that is, the crimp height h of the insulation barrel 34 is in the terminal storage chamber as shown in FIGS. In this state, the terminals 5 are turned sideways so as to face the arrangement direction (width direction) of the terminals 22, and the terminals 5 are inserted into the terminal storage chamber 22 from the rear of the housing 20 in this state. Specifically, while the terminal 5 is inserted into the terminal storage chamber 22, the tip (contact piece 5b) protrudes forward from the terminal storage chamber 22 and is inserted into the support groove 26 of the support portion 24a, and further the tip of the contact piece 5b. The terminal 5 is inserted into the housing 20 until it comes into contact with the front end wall 26 a of the support groove 26. In this way, as shown in FIG. 6B, the protrusion 27 formed on the front end wall 26a of the support groove 26 is inserted between the unit contact pieces 46a and 46b of the contact piece 5b, and each unit The hooks 48 formed on the contact pieces 46 a and 46 b engage with the edge of the outlet (front side opening) of the terminal storage chamber 22. As a result, the contact piece 5b of the terminal 5 is exposed to the outside in a state of protruding in the connector connecting direction, and the terminal 5 is connected to the housing 20 together with the discrete wire 3 with the protrusion 27 constraining the tip of the contact piece 5b in the vertical direction. Stored and held in

  Note that the terminal storage chamber 22 of the housing 20 has a symmetrical cross-sectional shape in the vertical and horizontal directions, and the terminal 5 is in either the left or right orientation, that is, the holding surface side of the discrete wire 3 in the terminal 5 is the terminal storage chamber 22. The terminal 5 can be inserted even in a state where one side or the other side of the arrangement direction is directed (see FIG. 9). Further, as shown in the figure, the support portion 24a also appropriately restrains the displacement in the vertical direction of the contact piece 5b even when the terminal 5 is inserted in any of the above directions with respect to the terminal storage chamber 22, The protrusions 27 and the like are formed so that the height position of the unit contact pieces 46a and 46b located on the upper side can be kept constant. As a result, the terminal 5 is inserted into the terminal storage chamber 22 in any direction. Even in this case, the counterpart terminal 12 can reliably contact either one of the unit contact pieces 46a and 46b.

  On the other hand, the flat wiring member 6 is composed of, for example, a flat cable in which a plurality of flat conductors are arranged at a constant pitch in the width direction, and each end of the flat conductor 6a (hereinafter referred to as a conductor 6a) is processed as shown in FIG. ) Are exposed to the outside, and notches 8 corresponding to the side protrusions 35 of the retainer 25 (support portion 24b) are formed at both ends of the end portion in the width direction. Further, a reinforcing plate 7 that serves both for preventing bending and positioning is laminated and fixed on the back side of the flat wiring member 6, that is, on the side opposite to the exposed side of the conductor 6 a.

  The flat wiring member 6 is inserted into the housing 20 as follows. First, with the exposed surface of the conductor 6 a facing upward, the wiring member 6 is inserted into the insertion hole 23 from the rear side of the housing 20, and the exposed portion of the conductor 6 a is pulled out to the front of the housing 20. The end portion is overlapped with the retainer 25 (shown by a broken line in FIG. 6A). Specifically, by inserting the reinforcing plate 7 between the front and rear projections 33 and 36 while inserting the end of the flat wiring member 6 between the both pressing portions 34 and the support surface 32 of the retainer 25, the flat wiring member 6 is flat. The end portion of the wiring member 6 is superposed on the support surface 32 of the retainer 25. In this state where the flat wiring member 6 is superposed on the retainer 25b, the reinforcing plate 7 is restrained front and rear and left and right by the front and rear projections 33 and 36 and the side projection 35, whereby the flat wiring member 6 is front and rear, right and left. In addition, the holding portion 34 prevents the end portion from being lifted.

  In this state, the retainer 25 is inserted integrally with the flat wiring member 6 into the insertion hole 23 of the housing 20 from the rear side (rear protrusion 36 side). 6B, the hook 37 formed on the back surface of the retainer 25 is inserted into the locking hole 30 formed in the main body portion of the housing 20, so that the retainer 25 is attached to the main body portion. The support portion 24b of the housing 20 is formed by engaging with each other, that is, the end portion of the flat wiring member 6 is parallel to this row below the row of discrete wires 3 (terminals 5) as shown in FIG. Are held in line.

  In this way, the flat wiring member is inserted into the housing 20 with the exposed portion of the terminal conductor 6a protruding from the main body portion of the housing 20 in the connector connecting direction and supported from below by the support portion 24b. Is done.

  Although not shown in detail, in this wiring material side connector C1, the arrangement pitch of the terminals 5 is equal to the arrangement pitch of the conductors 6a of the flat wiring material 6, and each conductor of each terminal 5 and the flat wiring material 6 is provided. The housing 20 and the like are configured so as to be shifted by a half pitch with respect to the width direction, whereby the terminals 5 and the conductors 6a of the flat wiring material 6 are arranged in a staggered manner as the whole wiring material side connector. And about the housing 10 of the board | substrate side connector C2 used as the other party, the upper stage terminal 12B corresponding to the said terminal 5, and the lower stage terminal 12A corresponding to the arrangement | sequence of the conductor 6a of the flat wiring material 6 are respectively shown. The upper and lower terminal storage chambers 13 are formed so that they can be arranged. As a result, the connecting portions of the upper and lower terminals 12A and 12B are arranged at the same pitch as the conductor 6a of the flat wiring member 6, and the upper and lower terminals 12A and 12B are arranged. The arrangement of 12B is a staggered arrangement with a half-pitch shift in the width direction.

  In the configuration of the connectors C1 and C2 as described above, in order to connect the discrete wire 3 and the flat wiring member 6 to the circuit board P, respectively, as shown in FIGS. 11 (a), 12 (a), and 13 (a). Then, the wiring material side connector C1 is opposed to the fitting concave portion 10a of the board side connector C2, and the support portions 24a and 24b of the wiring material side connector C1 are inserted into the fitting concave portion 10a from the tip side. Specifically, of the upper and lower terminals 12 housed in the board-side connector C2, the upper support portion 24a of the wiring member-side connector C1 is provided between the connecting flexible piece 14a and the support piece 14b of the upper terminal 12B. Similarly, the housings of both connectors C1, C2 are fitted together while the lower support portion 24b of the wiring material side connector C1 is inserted between the connecting flexure piece 14a and the support piece 14b of the lower terminal 12A. In this way, when the housing 20 is inserted, the locking piece 17 of the board-side connector C2 is pushed outward and the connectors C1 and C2 are brought into a completely fitted state as shown in FIG. 13 (b). Thus, the hook 17a of the locking piece 17 engages with the locking portion 28 of the housing 20, and as a result, both the connectors C1 and C2 are locked in the fitted state.

  When the connectors C1 and C2 are in a completely fitted state in this way, as shown in FIG. 11 (b), the mating terminal 12B is in contact with the contact piece 5b of the terminal 5 attached to each discrete wire 3. The connecting bending pieces 14a are in contact with each other. To be precise, the connecting bending pieces 14a of the mating terminal 12B are in contact with the unit contact pieces 36a (or 36b) located on the upper side of the unit contact pieces 36a and 36b. By this contact, each discrete line 3 is connected to the circuit of the circuit board P via the corresponding counterpart terminal 12B. Further, as shown in FIG. 12 (b), each of the conductors 6a of the flat wiring member 6 comes into contact with the connecting flexible piece 14a of the mating terminal 12A. Each is connected to the circuit of the circuit board P via the corresponding counterpart terminal 12A.

  At this time, the contact piece 5b of the terminal 5 is supported by the terminal support portion 24a, and the terminal portion of the flat wiring member 6 is supported by the terminal support portion 24b from the side opposite to the contact side of the connecting bending piece 14a. Even when the terminal 5 and the conductor 6a are sandwiched (fitted) between the connecting bending piece 14a and the support portion 14b, deformation of the terminal 5 (contact piece 5b) and the flat wiring member 6 (terminal portion) is effectively prevented. As a result, each connecting bending piece 14a comes into reliable contact with the terminal 5 and the conductor 6a.

  According to the connector according to the present invention as described above, it is possible to connect the wiring members of different wire types of the discrete wire 3 and the flat wiring member 6 to the circuit board P using the common board-side connector C2. . Therefore, there is no need to design and manufacture a connector for each wiring material as in the case of using individual connectors for each of the discrete wire and the flat wiring material, and the burden of design of the connector is reduced and the connector as a part is reduced. The burden of managing the housing is also reduced. In addition, the connection work of the discrete wire 3 and the flat wiring material 6 to the circuit board P can be performed by a single work of connecting the wiring material side connector C1 to the board side connector C2 as described above. There is an advantage that workability such as connection of the wiring material to P is improved.

  In this embodiment, the discrete wire 3 and the flat wiring are connected by connecting the wiring material side connector C1 holding both the discrete wire 3 and the flat wiring material 6 to the board side connector C2 mounted on the circuit board P. The material 6 is electrically connected to the circuit board P. For example, by using the following wiring material side connector C3 (third connector) holding the flat wiring material 6 in two upper and lower stages, the substrate Both flat wiring members 6 can be connected to the circuit board P using the side connector C2 as it is.

  14 and 15 are diagrams for explaining the configuration of the wiring material side connector C3 that holds the flat wiring material 6 in two upper and lower stages. In addition, since the configuration of the wiring material side connector C3 is basically the same as the configuration of the wiring material side connector C1, in the following description, parts common to the wiring material side connector C1 described above are denoted by the same reference numerals. Detailed description is omitted.

  The housing 20 (third housing) of the wiring material side connector C3 is not provided with the terminal accommodating chamber 22, and as shown in FIG. The retainer 25 having the same configuration is inserted into each insertion hole 23. Then, as in the case of the wiring material side connector C1, the flat wiring material 6 and the retainer 25 are integrally inserted into the respective insertion holes 23 as shown in FIG. 15B. The two flat wiring members 6 are arranged in two upper and lower stages in parallel with each other, and the exposed portion of the conductor 6a is supported by the support portions 24a and 24b constituted by the retainers 25 and is held by the housing 20. ing.

  In this wiring material-side connector C3, the housing 20 and the like are configured such that the upper and lower flat wiring materials 6 are held in the width direction by being shifted by a half pitch of the arrangement of the conductors 6a. The arrangement of 6a is a staggered arrangement as a whole of the wiring material side connector.

  According to such a configuration of the wiring material side connector C3, the connector C3 is opposed to the fitting concave portion 10a of the board side connector C2, and the portions of both support portions 24a and 24b are inserted into the fitting concave portion 10a from the tip side. Of the two upper and lower terminals 12A and 12B housed in the board-side connector C2, the upper part of the wiring member side connector C3 is held between the connecting piece 14a and the support piece 14b of the upper terminal 12B. While the flat wiring member 6 is inserted, the lower flat wiring member 6 of the wiring member-side connector C1 is inserted between the connecting flexible piece 14a and the support piece 14b of the lower terminal 12A. At this time, since the upper and lower terminals 12A and 12B of the board-side connector C2 are both arranged at the same pitch as the conductor 6a of the flat wiring member 6 as described above, the upper wiring member 6 of the wiring member-side connector C3 The connecting flexible piece 14a of the upper terminal 12B of the board-side connector C2 with respect to each conductor 6a is connected to the lower terminal of the board-side connector C2 with respect to each conductor 6a of the lower flat wiring material 6 of the wiring material-side connector C3. The 12A connecting bending pieces 14a come into contact with each other, and the flat wiring member 6 is connected to the circuit on the circuit board P through the corresponding counterpart terminals 12A and 12B.

  As described above, according to the connector of the above embodiment, not only when the discrete wires 3 and the flat wiring material 6 are connected to the circuit board P, but also when the two flat wiring materials 6 are connected to the circuit board P, the board is used. The side connector C2 can be used as it is. Therefore, there is an advantage that the use of the wiring material to the circuit board P can be expanded with a rational connector configuration in which the board-side connector C2 is shared.

  In addition, according to the connector of the said embodiment, there also exist the following characteristics.

  First, regarding the holding structure of the terminal 5 in the wiring material side connector C1, the crimp height h of the insulation barrel 34 is smaller than the crimp wide w (smaller than the diameter d of the discrete wire 3) as described above. The terminal 5 is mounted on the discrete wire 3 and is further housed in the housing 20 in a state where the terminal 5 is placed sideways so that the crimp height h of the insulation barrel 34 faces the direction in which the terminal housing chambers 22 are arranged. In other words, the wiring material side connector C1 is configured so that the terminal 5 is accommodated in the housing 20 in a state where the terminals 5 are arranged in the direction of the crimp height h of the insulation barrel 34. 5 can be effectively narrowed in pitch, and as a result, it can be used without a complicated terminal structure. The terminal 5 can be accommodated in the housing 20 in Tsu preparative conductor 6a and an equal pitch of the wiring member 6. In other words, conventionally, the insulation barrel of the terminal is crimped so as to be held from the outside of the sheath while maintaining the cross-sectional shape of the discrete wire, and therefore, the restriction due to the crimp width of the insulation barrel is set when setting the pitch between the terminals. It is easy to receive and narrow pitch is difficult. On the other hand, according to the configuration of the wiring material side connector C1 as described above, since the terminals 5 are arranged in the direction of the crimp height h of the insulation barrel 34, there is a restriction due to the crimp width w when setting the pitch between the terminals. In addition, since the insulation barrel 34 is crimped to the discrete wire 3 in a flat state where the crimp height h is smaller than the crimp width w, the occupied space in the terminal arrangement direction is effectively reduced. As a result, a narrow pitch of the terminal arrangement is achieved. Accordingly, the terminals 5 can be accommodated in the housing 20 in a state of being arranged at the same pitch as the conductors 6a of the flat wiring member 6 without adopting a complicated terminal structure.

  Further, in this wiring material side connector C1, as shown in FIG. 9, the terminal 5 is in either the left or right direction, that is, the holding surface side of the discrete wire 3 of the terminal 5 is one side in the arrangement direction of the terminal storage chambers 22. Alternatively, since the housing 20 is formed so that the terminal 5 can be stored in the terminal storage chamber 22 regardless of which side of the other side is facing, it is possible to improve workability when assembling the wiring material side connector C1. In addition, it is possible to effectively prevent erroneous work.

  Further, by utilizing the point that the contact piece 5b of the terminal 5 has a U-shaped cross section provided with the pair of unit contact pieces 36a and 36b as described above, a protrusion 27 is provided on the support portion 24 to provide unit contact. The contact piece 5b is constrained in the vertical direction by being inserted between the pieces 36a and 36b to prevent the contact piece 5b from being lifted up. When the connector is fitted, the connection flexible piece 14a of the mating terminal 12 and the support piece 14a are supported. The contact piece 5b can be inserted smoothly and reliably between the piece 14b and the contact piece 5b can be brought into contact with the connecting bending piece 14a. Therefore, the contact reliability between the terminals can be improved.

  On the other hand, the board-side connector C2 has the following effects. That is, in the board-side connector C2, the locking pieces 17 are provided on the fixing brackets 15A and 15B, respectively, and these locking pieces 17 are configured to be engaged with the housing 20 of the wiring material-side connector C1. In this embodiment, as shown in FIG. 2, as a result of the respective locking pieces 17 being offset vertically, there is an effect that space saving of the board-side connector C2 is achieved. More specifically, in the housing 10 of the board-side connector C2, as shown in the figure, the arrangement of the upper terminal storage chambers 13 is shifted to the left with respect to the arrangement of the lower terminal storage chambers 13, and this shift Accordingly, the locking piece 17 of the lower terminal storage chamber 13 is provided in the left fixing bracket 15A, and the locking piece 17 of the upper terminal storage chamber 13 is provided in the locking piece 17 of the right fixing bracket 15B. Is provided. That is, due to the lateral displacement of the terminal storage chamber 13 as described above, the upper terminal storage chamber 13 is arranged at the right end of the housing 10, and the lower terminal storage chamber 13 is arranged at the left end of the housing 10. Each has a dead space. Therefore, in the wiring material side connector C1, the locking piece 17 is provided in each of the fixing brackets 15A and 15B so that the locking piece 17 is positioned in the dead space, thereby sufficiently securing the bending allowance of the locking piece 17. However, both the fixing brackets 15A and 15B can be accommodated in the housing in a compact manner. Therefore, space saving of the board side connector C2 is achieved in this respect.

  The board-side connector C2 and the wiring material-side connector C1 described above are examples of the embodiment of the connector according to the present invention, and specific configurations thereof can be appropriately changed without departing from the gist of the present invention. is there.

  For example, in the above-described embodiment, the present invention is applied as a connector configuration when the discrete wire 3 and the flat wiring member 6 are connected to the circuit board P. Of course, the discrete wires and the flat wiring members are connected to each other. The present invention can also be applied as a connector configuration or a connector configuration for connecting a discrete wire and a flat wiring member.

  Moreover, in the said embodiment, although the arrangement | sequence of the terminal 5 of the wiring material side connector C1 is made into the same pitch as the conductor 6a of the flat wiring material 6, it does not necessarily need to follow this and you may make it arrange with a different pitch. However, according to the configuration in which the terminals 5 are arranged at the same pitch as the conductor 6a of the flat wiring member 6, as described with reference to FIGS. 14 and 15, the wiring member side connector holding the flat wiring member 6 in two upper and lower stages. There is an advantage that it is possible to connect C3 using a common board-side connector C2.

  In the embodiment, terminals having common U-shaped connecting portions (connecting bending pieces 14a and supporting portions 14b) are used as the terminals 12A and 12B of the board-side connector C2. You may use the terminal which has a connection part of a mutually different shape as 12B. However, if the common configuration as in the embodiment is adopted, the design burden of the terminals 12A and 12B can be reduced, and the shape of the terminal storage chamber 13 in the housing 10 is also made common. There is a merit that manufacturing becomes easy. In this case, it is preferable that the terminals 12A and 12B have a common shape when possible.

  In this embodiment, the “discrete wire” may be a single core wire, a stranded wire, a round wire, a square wire, or any other independent form of electric wire, and may or may not have a conductive plating treatment or the like. is there.

It is a perspective view (partially exploded view) which shows the connector which concerns on this invention. It is sectional drawing of a board | substrate side connector. It is sectional drawing of a board | substrate side connector ((a) is the sectional view on the AA line of FIG. 2, (b) is sectional drawing on the BB line of FIG. 2). It is a perspective view which shows the fixing metal fitting inserted in the board | substrate side connector. It is a figure which shows the housing of a wiring material side connector ((a) is the perspective view which looked at the housing main body and the insertion retainer to this from the rear side of the housing main body, (b) is the perspective view which looked at the housing main body from the front side. It is a figure). It is sectional drawing which showed the housing of a wiring material side connector, the terminal arrived at this (attached to a discrete wire), a flat wiring material, and a retainer ((a) is a terminal, a flat wiring material, and a retainer in a housing. (B) shows a state in which the terminal, the flat wiring member, and the retainer are inserted into the housing before being inserted. It is a perspective view which shows the discrete wire | line and the terminal with which the terminal is mounted | worn ((a) is before mounting | wearing, (b) is the state after mounting | wearing). (A) is a cross-sectional schematic diagram which shows the crimping | compression-bonding part of an insulation barrel among the terminals with which the discrete wire was mounted | worn, (b) is a cross-sectional schematic diagram which shows the discrete wire before terminal mounting. It is a longitudinal cross-sectional view (The figure explaining the direction of the terminal accommodated in the terminal storage chamber) of the support part in a wiring material side connector. It is a schematic plan view showing the end portion of the flat wiring material. It is the longitudinal cross-sectional view (longitudinal sectional view in the terminal storage chamber part of a wiring material side connector) explaining the connection process of a board | substrate side connector and a wiring material side connector ((a) is the state before a connection, (b) is Each shows the connection completion status). It is a longitudinal cross-sectional view (longitudinal cross-sectional view in the terminal storage chamber wall part of a wiring material side connector) explaining the connection process of a board | substrate side connector and a wiring material side connector ((a) is a state before a connection, (b). Indicates the connection completion status). It is a plane sectional view explaining the connection process of a board | substrate side connector and a wiring material side connector (flat sectional view in the flat wiring material support part of a wiring material side connector) ((a) is the state before a connection, (b) Indicates the connection completion status). It is the perspective view and perspective exploded view which show the other example of the wiring material side connector which can be connected to a board | substrate side connector. It is a longitudinal cross-sectional view which shows the wiring material side connector of FIG. 14 ((a) is an exploded view, (b) is an assembly drawing.).

Explanation of symbols

C1 Wiring material side connector (first connector)
C2 Board side connector (second connector)
P Circuit board 3 Discrete wire 5 Terminal (first terminal)
6 Flat wiring material 6a Flat conductor 10, 20 Connector housing 12A Terminal (third terminal)
12B terminal (second terminal)

Claims (5)

A plurality of storage portions capable of storing the first terminals of the discrete wires having the first terminals attached to the end portions; and storage portions capable of storing the end portions of the flat wiring members having the conductors exposed to the outside at the end portions. A first connector having a plurality of discrete wires and a flat wiring member integrally held by the first housing by storing the first terminal and the flat wiring member in the storage portion, respectively. A second housing that can be fitted to the first housing, and a second terminal that can be fitted to the first terminal and a third terminal that can be fitted to the conductor of the flat wiring member. A second connector held,
The first housing holds the discrete wires and the flat wiring members so that the plurality of discrete wires are arranged in a row and the rows and the flat wiring members are arranged in a direction perpendicular to the rows in a state of being parallel to each other. While
The second housing holds the second terminal in an arrangement corresponding to the first terminal accommodated in the first housing and has an arrangement corresponding to the conductor of the flat wiring member accommodated in the first housing. Hold 3 terminals,
When the two housings are fitted to each other, the second terminal is fitted to the first terminal mounted on the discrete wire, and the third terminal is fitted to the conductor of the flat wiring member. Characteristic connector. The connector according to claim 1,
The first terminal has a tab-shaped contact piece at the tip thereof, while the second terminal and the third terminal each have a common connecting portion having a contact piece and a support piece, The tab-shaped contact piece of the first terminal and the conductor of the flat wiring material are sandwiched between the support piece and the support piece,
When the first housing and the second housing are fitted to each other, the tab-shaped contact piece of the first terminal is inserted between the contact piece and the support piece of the second terminal, and the contact pieces come into contact with each other, A connector characterized in that an end portion of a flat wiring member is inserted between a contact piece and a support piece of a third terminal so that the conductor comes into contact with the contact piece. The connector according to claim 2,
The connector characterized in that the second terminal and the third terminal have a common shape. The connector according to claim 2 or 3,
The second housing has a plate-like support member that can be attached to and detached from the main body portion, and the flat wiring material and the support member are placed in a state where the end portion of the flat wiring material is stacked on the support member. By being inserted into the second housing integrally, the exposed portion of the conductor protrudes in the connector connecting direction, and the flat wiring member is held in a state where the protruding portion is supported by the support member. In addition, a terminal support portion having the same shape as the protruding portion of the support member is provided at a location corresponding to the storage portion of the first terminal, and the tab of each first terminal held by the second housing by the terminal support portion. Configured to support the contact piece in the state of protruding in the connector connection direction,
When the first housing and the second housing are fitted to each other, the tab-like contact piece of the first terminal and the terminal support portion are integrally inserted between the contact piece and the support piece of the second terminal. On the other hand, the connector is characterized in that the end portion of the flat wiring member and the support member are integrally inserted between the contact piece and the support piece of the third terminal. The connector according to claim 1, wherein:
The first housing holds the first terminals such that the arrangement pitch of the first terminals is equal to the arrangement pitch of the conductors of the flat wiring member,
The second housing holds the second and third terminals so that both the arrangement of the second terminals and the arrangement of the third terminals are equal to the arrangement pitch of the flat wiring members, and can be fitted into the second housing. By fitting the third housing of the third connector holding the flat wiring member in a direction orthogonal to the arrangement direction of the conductors by the third housing into the second housing, each flat of the third connector is fitted. A connector characterized in that the second terminal and the third terminal can contact each of the conductors of the wiring material.

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