JP2006086083A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive connector of which the working processes are few. <P>SOLUTION: On the side where a contact tail 8a of one of bodies 22 of the connector 20 is exposed, a wire retaining block 30 which has formed a cable guide hole 31 which guides the core wire 40a of a cable 40 to the corresponding contact tail 8a is arranged and installed, and the bodies 22 and the wire retaining block 30 are joined by interposing an engaging means 23 between this wire retaining block 30 and the bodies 22. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an improvement in a connector that can electrically connect one printed wiring board and the other printed wiring board and can also electrically connect one printed wiring board and a cable.

   Conventionally, as a connector for electrically connecting one printed wiring board on which an electronic circuit is formed and the other printed wiring board on which an electronic circuit is also formed, it is arranged on the surface of the printed wiring board. A so-called surface mount type connector is known.

    FIG. 10 is a conceptual cross-sectional view of the surface mount type connector 1 described above.

    The connector 1 includes a plug 3 disposed on one printed wiring board 2 and a receptacle 5 disposed on the other printed wiring board 4.

  Among them, the plug 3 is composed of a plurality of plug-side contacts 6 having an L-shaped cross section and arranged at a predetermined pitch along the depth direction of the drawing, and a plug body 7 for supporting them. Further, the contact tail 6a of the plug-side contact 6 is electrically connected to a corresponding printed wiring pattern (not shown) formed on the upper surface of the printed wiring board 2 through a fixing means such as solder.

  Similarly, the receptacle 5 is composed of a plurality of receptacle-side contacts 8 having an L-shaped cross section disposed at a predetermined pitch along the depth direction of the drawing, and a receptacle body 9 that supports the receptacle 5. The contact tail 8a of the side contact 8 is electrically connected to a corresponding printed wiring pattern (not shown) formed on the lower surface of the printed wiring board 4 through fixing means such as solder.

  According to such a connector 1, as shown by the arrow A, when the receptacle body 9 is inserted into the fitting hole 7a formed in the plug body 7, as shown in FIG. A pair of corresponding receptacle contacts 8 are inserted and held between the pair of receptacle contacts 8, whereby an electrical connection between the pair of plug-side contacts 6 and the corresponding pair of receptacle-side contacts 8 is achieved. Thus, electrical connection between the electronic circuit of one printed wiring board 2 and the electronic circuit of the other printed wiring board 4 is achieved.

  In FIG. 11, reference numeral 9 a denotes engagement protrusions formed on both side surfaces of the receptacle body 9, and the engagement protrusions 9 a engage with engagement holes 7 b formed on both sides of the plug body 7. 7 and 9 are designed to prevent both sides from coming together.

  On the other hand, when the connector 1 described above is used for electrical connection between one printed wiring board 2 and a cable, the wire holding block 10 is connected to the receptacle body 9 as shown in FIG. Is disposed on the upper surface.

  As described above, when the wire holding block 10 is disposed on the upper surface of the plug body 7, conventionally, after connecting the core wire 11a of the corresponding cable 11 to each contact tail 8a of the receptacle-side contact 8 with solder or the like, The receptacle body 9 is subjected to secondary molding such as injection molding, whereby the wire holding block 10 is formed on the upper surface of the plug body 7.

  Thus, when the receptacle body 9 to which the cable 11 corresponding to each contact tail 8a is connected through the wire holding block 10 is fitted into the plug body 7, one of the connectors 1 through the connector 1 in which the wire holding block 10 is formed is inserted. Electrical connection between the printed wiring board 2 and the corresponding cable 11 is achieved.

  By the way, according to the conventional connector 1 described above, when the connector 1 is used for the connection of the printed wiring board to the cable, the receptacle body 9 is subjected to secondary molding such as injection molding, whereby the wire holding block 10 is plugged. Since it has to be formed above the body 7, the number of processing steps for the connector 1 is large, and this causes a cost increase.

  In view of the above-described circumstances, an object of the present invention is to provide an inexpensive connector with few processing steps.

  In order to solve the above-described problems, in the present invention, a plug having a contact tail that can be connected to the wiring pattern of one printed wiring board is connected to the wiring pattern of the other printed wiring board. A receptacle in which contacts having possible contact tails are disposed on the body, and the plug and the receptacle are coupled to electrically connect the wiring pattern of the one printed wiring board and the wiring pattern of the other printed wiring board. A cable guide hole for guiding a gable core wire to the corresponding contact tail on the exposed side of the contact tail of one of the plug-side body and the receptacle-side body A wire holding block formed with The wire holding block between yer holding block and the body was set to be interposed engagement means for coupling to said body.

  According to the connector described above, a wire holding block in which a cable guide hole for guiding a cable core wire to a corresponding contact tail is formed in one of a plug-side body and a receptacle-packet-side body constituting the connector. In addition, an engaging means is interposed between the wire holding block and the body, and the wire holding block and the body are coupled via the engaging means. When joining, the body is subjected to secondary molding such as injection molding, so there is no need to form the wire holding block on the body, and the wire holding block can be easily joined to the body. Can be provided at low cost.

   Hereinafter, an embodiment of a connector according to the present invention will be described in detail.

   FIG. 1 is a conceptual sectional view showing a receptacle 21 of a connector 20 according to the present invention, and the same parts as those in FIG.

   In the receptacle 21 of the connector 20, one of the engagement means 23 is arranged at the center of the receptacle body 22 that supports the plurality of receptacle-side contacts 8 having an L-shaped cross section on the side where the contact tail 8 a is exposed. The engaging convex portion 24 is formed so as to protrude integrally with the receptacle body 22.

  FIG. 2 is a cross-sectional view of the cable holding block 30 that is detachably attached to the side of the receptacle body 22 where the contact tail 8a is exposed.

  On the lower surface 30a of the cable holding block 30, an engagement recess 25 is formed integrally with the engagement protrusion 24 formed on the contact tail 8a side of the receptacle body 22 shown in FIG. Yes.

  A cable guide hole 31 is formed on the upper surface 30b of the cable holding block 30 to guide the core wire of the cable described later to each contact tail side.

  The guide hole 31 includes a large-diameter portion 31a for guiding the tip of the cable sheath and a small-diameter portion 31b for guiding the core wire. The small-diameter portion 31b reaches an extended position of a contact tail (not shown). It is open.

  In FIG. 1, reference numeral 22 a denotes engagement protrusions formed on both side surfaces of the receptacle body 22.

   Next, the operation of the connector 20 described above will be described, and the configuration will be described in more detail.

   FIG. 3 is a sectional view showing an example in which the connector 20 according to the present invention is used for electrical connection between a printed wiring board and a printed wiring board, and the same parts as those in FIG. 10 are denoted by the same reference numerals.

   Here, as in the prior art, the contact tail 6a of the plug 3 is electrically connected to a corresponding printed wiring pattern (not shown) formed on one printed wiring board 2 through a fixing means such as solder. .

   On the other hand, the contact tail 8a of the receptacle 21 is also electrically connected to a corresponding printed wiring pattern (not shown) formed on the lower surface of the other printed wiring board 4 through fixing means such as solder.

  When the receptacle body 22 is fitted into the fitting hole 7a of the plug body 7 as indicated by an arrow A in FIG. 3, the plug-side contacts 6 correspond to a pair of receptacle contacts 8 as shown in FIG. Thus, electrical connection between the pair of plug-side contacts 6 and the corresponding pair of receptacle-side contacts 8 is achieved, and the electronics of one printed wiring board 2 are connected via the connector 20. Electrical connection between the circuit and the electronic circuit of the other printed wiring board 4 is achieved.

  Further, the engagement protrusions 22a formed on both side surfaces of the receptacle body 22 engage with the engagement holes 7b formed on both sides of the plug body 7, so that the body 7 and 22 are prevented from coming off after the connection. Yes.

  On the other hand, when the connector 20 described above is used to electrically connect one printed wiring board 2 and a cable, the contact tail 8a is exposed in the receptacle body 22 of the receptacle 21, as shown in FIG. As shown by the arrow B, the cable holding block 30 is inserted with the lower surface 30a facing the side.

  Then, as shown in FIG. 6, the engagement convex portion 24 constituting one of the engagement means 23 formed on the receptacle body 22 is the other of the engagement means 23 formed on the lower surface 30 a of the cable holding block 30. Is fitted into the engaging convex portion 25, and both are firmly coupled.

  When the cable holding block 30 is coupled to the receptacle body 22 in this manner, the downstream end of the small diameter portion 31b of each cable guide hole 31 formed in the cable holding block 30 faces each contact tail 8a side, The rear end of the contact tail 8a is exposed.

  As described above, after the cable holding block 30 is coupled to the receptacle body 22, the cable 40 is inserted into the cable guide hole 31 of the cable holding block 30 as shown by the arrow C, and the contact tail 8a corresponding to the core wire 40a of the cable 40 7 is fixed by fixing means such as solder 50, etc., as shown in FIG. 7, the receptacle 21 in which the core 40a of each cable 40 is electrically connected to the corresponding contact tail 8a via the cable holding block 30 is completed.

  Thereafter, when the receptacle 21 connected to each cable 40 via the cable holding block 30 is inserted into the fitting hole 7a of the plug body 7 as shown by an arrow A, as shown in FIG. Each plug-side contact 6 is fitted and sandwiched between a corresponding pair of receptacle contacts 8, thereby achieving electrical connection between the pair of plug-side contacts 6 and the corresponding pair of receptacle-side contacts 8. The electrical connection between the electronic circuit of one printed wiring board 2 and the cable 40 is achieved through the connector 20.

  FIG. 9 is a conceptual perspective view of the connector 20 in which electrical connection between the electronic circuit of one printed wiring board 2 and the cable 40 is intended, and the same parts as those in FIG.

  In FIG. 9, reference numeral 60 denotes a positioning boss for the printed wiring board, and 61 denotes a mounting bracket.

    In the above embodiment, the cable 40 is connected to the receptacle 21 via the cable holding block 30. However, the present invention is not limited to the above embodiment, and the cable holding block 30 is coupled to the plug 3 side. The contacts on the plug 3 side and the cable 40 may be connected via the cable holding block 30.

  As described above, the connector of the present invention can electrically connect one printed wiring board and the other printed wiring board and can also electrically connect one printed wiring board and a cable. Suitable for connectors.

FIG. 1 is a conceptual sectional view showing one of connectors according to the present invention. FIG. 2 is a conceptual cross-sectional view of the wire holding block of the connector according to the present invention. FIG. 3 is a conceptual cross-sectional view showing an example in which the connector according to the present invention is used for a board-to-board connection. FIG. 4 is a conceptual cross-sectional view showing an example in which the connector according to the present invention is used for a board-to-board connection. FIG. 5 is a conceptual cross-sectional view showing the assembly process of the connector according to the present invention. FIG. 6 is a conceptual cross-sectional view showing the assembly process of the connector according to the present invention. FIG. 7 is a conceptual cross-sectional view showing an example in which the connector according to the present invention is used for connecting a board to a cable. FIG. 8 is a conceptual cross-sectional view showing an example in which the connector according to the present invention is used for connecting a board to a cable. FIG. 9 is a conceptual perspective view of FIG. FIG. 10 is a conceptual cross-sectional view showing a state in which a conventional connector is used for board-to-board connection. FIG. 11 is a conceptual cross-sectional view showing a state in which a conventional connector is used for board-to-board connection. FIG. 12 is a conceptual cross-sectional view showing a state in which a conventional connector is used for a board-to-cable connection.

Explanation of symbols

2. One printed wiring board
3 ... plug 4 ... other printed wiring board 6, 8 ... contact 6a, 8a ... contact tail
DESCRIPTION OF SYMBOLS 7 ... Plug side body 20 ... Connector 21 ... Receptacle 22 ... Receptacle side body 23 ... Engagement means 24 ... Engagement convex part 25 ... Engagement concave part 31 ... Cable guide hole 30 ... Wire holding block 40 ... Cable 40a ... Core wire

Claims (2)

A plug in which a contact having a contact tail connectable on the wiring pattern of one printed wiring board is disposed in the body, and a contact having a contact tail connectable on the wiring pattern of the other printed wiring board is disposed in a botini. In a connector having a receptacle, and connecting the plug and the receptacle to electrically connect the wiring pattern of the one printed wiring board and the wiring pattern of the other printed wiring board,
A wire holding block in which a cable guide hole for guiding a gable core wire to the corresponding contact tail is formed on the exposed side of the contact tail of either the plug-side body or the receptacle-side body. And an engaging means for coupling the wire holding block to the body between the wire holding block and the body.
The engagement means includes an engagement convex portion formed on the body side and an engagement concave portion formed on the wire holding block side and fitted to the engagement convex portion. The connector described.

Images