JP2007287418A - Joint connector, joint circuit, and manufacturing method of joint circuit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint connector, a joint circuit, and a manufacturing method of the joint circuit wherein, in particular, small-quantity large-variety joint connectors can be manufactured at a low cost. <P>SOLUTION: The joint connector has a joint circuit 10 and a mating terminal 21 which is connected to ends of a plurality of electric wires 30 capable of being connected to the joint circuit 10. The joint circuit 10 is provided with a flexible insulating board 111, a wiring pattern 112 formed in a comb-shape on one side of the flexible insulating board 111, a cover lay 113 which is formed on the wiring pattern 112 and protects the wiring pattern 112, a connection terminal 11 in which the cover lay 113 at the end of the flexible insulating board 111 is removed and is connected to the connecting terminal 21 of which the wiring pattern 112 is exposed, and a through hole 116 which disconnects the wiring pattern 112 and is formed penetrating through the flexible insulating board 111, the wiring pattern 112, and the cover lay 113. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a joint connector, a joint circuit, and a joint circuit manufacturing method used for connecting a plurality of electric wires to each other.

  Conventionally, a joint connector is known in which a large number of connection terminals connected to each electric wire are accommodated in a housing, and these connection terminals are short-circuited with a bus bar or the like to be interconnected to constitute a branch circuit. (See Patent Document 1).

Moreover, as a joint connector using a flexible printed circuit (FPC), there is known a connector used by connecting a joint terminal to an FPC and winding it around an electric wire (see Patent Document 2).
JP 2005-123100 A JP 2005-50799 A

  In the prior art, this type of joint connector has a connection terminal short-circuited using a bus bar, a dedicated terminal, an FPC, or the like. Therefore, when various types of joint connectors are required, bus bar terminals unique to each joint portion are required. For this reason, a mold for producing a bus bar is required, and there is a disadvantage that the manufacturing cost is increased particularly when the amount is small.

  As a method of solving this problem, a method of handling the board or the end face of the FPC as a card edge type male terminal without using a terminal is conceivable. However, there remains a problem that a plurality of types of boards and FPC are required. .

  The present invention has been made in view of such problems, and it is particularly desirable to provide a joint connector, a joint circuit, and a method for manufacturing a joint circuit that can be manufactured at low cost even in a small variety of products. Objective.

  A joint connector according to the present invention is a joint connector having a joint circuit and a counterpart terminal connected to ends of a plurality of electric wires connectable to the joint circuit. The joint circuit is a flexible insulating substrate. A wiring pattern formed in a comb shape or a lattice shape on one surface of the flexible insulating substrate, a coverlay for protecting the wiring pattern formed on the wiring pattern, and the flexible insulation A connection terminal portion connected to the connection terminal where the wiring pattern is exposed by removing the cover lay at an end of the substrate, and the flexible insulating substrate and the wiring that disconnect a part of the wiring pattern A through hole formed through the pattern and the cover lay is provided.

  By adopting such a configuration, a bus bar and a male terminal are not required for connection, and therefore, it can be manufactured at low cost. The circuit configuration can be easily changed by using the wiring pattern of the joint circuit as a comb and providing a through-hole in the comb-shaped wiring pattern and breaking it. Therefore, a small amount of other types of joint connectors can be manufactured at low cost.

  Moreover, the said connection terminal part may be formed in the edge part of 2 or more sides of the said joint circuit at least.

  The joint circuit according to the present invention includes a flexible insulating substrate, a wiring pattern formed in a comb shape or a lattice shape on one surface of the flexible insulating substrate, and the wiring formed on the wiring pattern. A cover lay for protecting a pattern; a connection terminal portion connected to the connection terminal from which the wiring pattern is exposed by removing the cover lay at an end of the flexible insulating substrate; and a part of the wiring pattern A through hole formed through the flexible insulating substrate, the wiring pattern, and the cover lay.

  The joint circuit manufacturing method according to the present invention includes a flexible printed circuit having a plurality of first wiring patterns extending in parallel with each other and a second wiring pattern extending in parallel with each of the plurality of first wiring patterns. Cutting out a plurality of circuits including the plurality of first patterns and at least one second wiring pattern, and disconnecting at least one of the first wiring patterns and the second wiring patterns of the plurality of cut-out circuits. And a step of forming a through hole as described above.

  According to the present invention, it is possible to provide a joint connector, a joint circuit, and a method for manufacturing a joint circuit that can be manufactured at low cost even in a small amount and a wide variety.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of a joint connector, a joint circuit thereof, and a method for manufacturing the joint circuit according to the invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is an exploded perspective view of a joint connector according to the first embodiment of the present invention before being joined. As shown in FIG. 1, the joint connector mainly includes a joint circuit 10 and a connector 20 having a connection terminal 21 (mating terminal). 2 is a plan view of the joint circuit 10, and FIG. 3 is a cross-sectional view taken along the line AA ′ of FIG.

  As shown in FIGS. 1 and 2, the joint circuit (FPC) 10 includes a flexible insulating substrate 111, a wiring pattern 112 such as a copper foil formed in a comb shape on one surface thereof, and the wiring pattern 112. And a resin cover lay 113 covering the top.

  An opening 114 is formed at one end of the cover lay 113 of the joint circuit 10, and the wiring pattern 112 is exposed. The portion of the wiring pattern 112 exposed by the opening 114 functions as the male connection terminal portion 11 connected to the female connection terminal 21. A reinforcing plate 115 is provided on the flexible insulating substrate 111 below the connection terminal portion 11.

  As shown in FIG. 2, the wiring pattern 112 includes eight first to eighth connection wiring patterns 112 a 1 to 112 a 8 formed in parallel to the connection direction to the connection terminal 21, and each of the reverse directions from the connection terminal portion 11. The connection wiring patterns 112a1 to 112a8 are formed from connection wiring patterns 112b that cross and connect with the ends of the connection wiring patterns 112a1 to 112a8, respectively. As described above, the wiring pattern 112 is exposed at the end portion, and the end portions of the first to eighth connection wiring patterns 112a1 to 112a8 function as the first to eighth connection terminal portions 11a1 to 11a8, respectively. To do.

  On the connection wiring pattern 112b, a through hole 116 is formed between the first and third connection wiring patterns 112a2 and 112a3 so as to penetrate from the flexible insulating substrate 111 to the cover lay 113. Similarly, through-holes 116 are formed between the fourth and fifth connection wiring patterns 112a4 and 112a5 and between the sixth and seventh connection wiring patterns 112a6 and 112a7 on the connection wiring pattern 112b. The wiring pattern 112 is disconnected by the through hole 116.

  Since the joint circuit 10 is configured in this way, the first to eighth connection terminal portions 11a1 to 11a8 are not electrically connected to each other, but in a predetermined combination by the through holes 116, It will be electrically connected. The combination includes the first and second connection terminal portions 11a1 and 11a2, the third and fourth connection terminal portions 11a3 and 11a4, the fifth and sixth connection terminal portions 11a5 and 11a6, and the seventh and eighth connection terminals. Parts 11a7 and 11a8. That is, the connection terminal portions 11a1 to 11a8 are connected to each other in a combination of 2 poles: 2 poles: 2 poles: 2 poles.

  As shown in FIG. 1, the connector 20 includes a plurality of connection terminals 21 fixed by caulking to the connection end of the electric wire 30, a first housing 22 that accommodates the connection terminals 21, and the first housing 22. And a second housing 23 into which the connection terminal portion 11 of the joint circuit 10 is inserted.

  As shown in FIGS. 1 and 3, the connection terminal 21 is formed by pressing a metal plate, and a slit 211 into which the connection terminal portion 11 of the joint circuit 10 is inserted is formed on the distal end side. A crimping portion 214 having crimping pieces 212 and 213 pressed from both sides is formed, and a wire crimping portion 217 in which a wire crimping portion 215 and a covered wire crimping portion 216 connected to the distal end of the wire 30 are formed on the proximal end side. It is configured with. In addition, the connection terminal 21 has an opening 218 near the center thereof.

  As shown in FIG. 3, the first housing 22 is provided with a flat insertion port 221 into which the connection terminal portion 11 of the joint circuit 10 is inserted at the distal end side, and a plurality of connection terminals 21 at the proximal end side. A terminal receiving hole 222 is formed, and a lance 223 for locking the connection terminal 121 is formed inside the first housing 22. Further, a locking projection 224 with the second housing 23 is provided on the upper surface of the first housing 22.

  As shown in FIG. 1, the second housing 23 is attached to the connection terminal portion 11 of the joint circuit 10 and is fitted to the tip of the first housing 22. In the second housing 23, a connector insertion port 231 for receiving the first housing 22 is formed on the distal end side, and a square insertion port (illustrated) for inserting the connection terminal portion 11 of the joint circuit 10 on the proximal end side. And a locking lock 232 that is locked to the locking protrusion 224 of the first housing 22 is formed on the upper surface.

[Modification of First Embodiment]
A modification of the joint connector according to the first embodiment will be described with reference to FIGS. The modification shown in FIGS. 4 to 8 differs from the first embodiment described above in that the positions and the number of through holes 116 of the joint circuit are changed.

  In the joint circuit 10a of FIG. 4, through-holes 116 are formed between the second and third connection wiring patterns 112a2 and 112a3 and between the fourth and fifth connection wiring patterns 112a4 and 112a5 on the connection wiring pattern 112b. Has been.

  Therefore, the combination of the connection terminal portions 11 electrically connected to each other includes the first and second connection terminal portions 11a1 and 11a2, the third and fourth connection terminal portions 11a3 and 11a4, and the fifth to eighth connections. Terminal portions 11a5 to 11a8. That is, the connection terminal portions 11a1 to 11a8 are connected to each other in a combination of 2 poles: 2 poles: 4 poles.

  The joint circuit 10b of FIG. 5 has through-holes 116 formed between the second and third connection wiring patterns 112a2 and 112a3 and between the fifth and sixth connection wiring patterns 112a5 and 112a6 on the connection wiring pattern 112b. Has been.

  Therefore, the combination of the connection terminal portions 11 electrically connected to each other includes the first and second connection terminal portions 11a1 and 11a2, the third to fifth connection terminal portions 11a3 to 11a5, and the sixth to eighth connections. Terminal portions 11a6 to 11a8. That is, the connection terminal portions 11a1 to 11a8 are connected to each other in a combination of 2 poles: 3 poles: 3 poles.

  In the joint circuit 10a of FIG. 6, a through hole 116 is formed between the second and third connection wiring patterns 112a2 and 112a3 on the connection wiring pattern 112b.

  Therefore, the combination of the connection terminal parts 11 electrically connected to each other is the first and second connection terminal parts 11a1 and 11a2 and the third to eighth connection terminal parts 11a3 to 11a8. That is, the connection terminal portions 11a1 to 11a8 are connected to each other in a combination of 2 poles: 6 poles.

  In the joint circuit 10a of FIG. 7, a through hole 116 is formed between the third and fourth connection wiring patterns 112a3 and 112a4 on the connection wiring pattern 112b.

  Therefore, the combination of the connection terminal parts 11 electrically connected to each other is the first to third connection terminal parts 11a1 to 11a3 and the fourth to eighth connection terminal parts 11a4 to 11a8. That is, the connection terminal portions 11a1 to 11a8 are connected to each other in a combination of 3 poles: 5 poles.

  In the joint circuit 10a of FIG. 8, a through hole 116 is formed between the fourth and fifth connection wiring patterns 112a4 and 112a5 on the connection wiring pattern 112b.

  Therefore, the combination of the connection terminal parts 11 electrically connected to each other is the first to fourth connection terminal parts 11a1 to 11a4 and the fifth to eighth connection terminal parts 11a5 to 11a8. That is, the connection terminal portions 11a1 to 11a8 are connected to each other in a combination of 4 poles: 4 poles.

  As described above, since the joint connector according to the first embodiment does not require a bus bar or a male terminal for connection, it can be manufactured at low cost. Further, by using a flexible insulating substrate for the joint circuit, the weight of the component can be reduced. In addition, since the joint circuit is comb-shaped, the circuit configuration can be easily changed by a through hole formed in the joint circuit.

[Method of Manufacturing Joint Circuit According to First Embodiment]
Next, a method for manufacturing the joint circuit 10 according to the first embodiment will be described.

  As shown in FIG. 9, first, a plurality of circuits are cut out from the flexible printed circuit 40, and the cutout circuit 50 is manufactured by removing the cover lay at the ends.

  The flexible printed circuit 40 mainly includes a flexible insulating substrate 111, a wiring pattern 112, and a cover lay 113. The wiring pattern 112 includes first to nth connection wiring patterns 112a1 to 112an extending in parallel with each other, and first to nth connection wiring patterns 112b1 extending in parallel and intersecting with the connection wiring patterns 112a1 to 112an. ~ 112bn.

  The positions where the cutting circuit 50 is cut out from such a flexible printed circuit 40 are, for example, a cutting line 41 and a cutting line 42 as shown in FIG. The cut-out line 41 is parallel to the connection wiring pattern 112a and is between the connection wiring patterns 112a (in the case of FIG. 9, between the 8th and 9th connection wiring patterns (m is a natural number)). The cut-out line 42 is parallel to the connection wiring pattern 112b and is between the center of each connection wiring pattern 112b and the connection wiring pattern 112b.

  Subsequently, the cover lay 113 at the end of each circuit cut out as described above is removed, and the small circuit 50 is manufactured. Then, through holes are provided on the connection wiring patterns 112 ′ b 1 to 112 b ′ n of the small circuit 50, and the joint circuit 10 is manufactured.

  As described above, since the joint circuit 10 is manufactured from the flexible printed circuit 40, the number of poles of the joint circuit 10 can be easily changed according to the positions of the cut lines 41 and 42. It is.

[Second Embodiment]
FIG. 10 is a cross-sectional view of a joint connector according to the second embodiment of the present invention.

  Similar to the first embodiment, the joint connector of the second embodiment mainly includes a joint circuit 10 ′ and a connector 20 ′ having a connection terminal 21 (mating terminal). Hereinafter, the configuration of the joint circuit 10 'and the first connector 22' constituting the connector, which are features of the second embodiment, will be described. FIG. 11 is a plan view of the joint circuit 10 ′.

  As shown in FIGS. 10 and 11, the joint circuit 10 ′ includes a flexible insulating substrate 111 ′, a wiring pattern 112 ′ such as a copper foil formed in a lattice shape on one surface thereof, and the wiring pattern 112 ′. And a resin cover lay 113 ′ covering the top.

  In the joint circuit 10 ′, an opening 114 ′ is formed in each of the opposing ends of one side of the cover lay 113 ′, and the wiring pattern 112 ′ is exposed. A portion of the wiring pattern 112 ′ exposed by the opening 114 ′ functions as a male connection terminal portion 11 ′ connected to the female connection terminal 21. A reinforcing plate 115 ′ is provided on the flexible insulating substrate 111 below the connection terminal portion 11 ′.

  As shown in FIG. 11, the wiring pattern 112 ′ includes eight first to eighth connection wiring patterns 112′a1 to 112′a8 formed in parallel to the connection direction to the connection terminal 21, and the connection terminal portion 11 ′. The first and second connection wiring patterns 112′b1 and 112′b2 extending in parallel and intersecting with the connection wiring patterns 112′a in the opposite directions are connected to each other.

  As described above, the wiring pattern 112 ′ is exposed at the opposite ends, and one end of the first to eighth connection wiring patterns 112 ′ a 1 to 112 ′ a 8 is the first to eighth. It functions as the connection terminal portions 11′a1 to 11a′8, and the other end functions as the ninth to sixteenth connection terminal portions 11′a9 to 11a′16.

  Reinforcing plates 115 ′ and 115 ′ are provided at the opposite ends of the flexible insulating substrate 111 ′ on the opposite side where the wiring pattern 112 ′ of the joint circuit 10 ′ is formed. The flexible joint circuit 10 ′ is bent so that the ends of the two sides are aligned in the same direction and connected to the first connector 22 ′.

  In addition, on the first connection wiring pattern 112′b1, the space between the first and second connection wiring patterns 112a′1 and 112a′2 penetrates from the flexible insulating substrate 111 ′ to the cover lay 113 ′. A formed through-hole 116 ′ is formed. Similarly, between the third and fourth connection wiring patterns 112′a3 and 112a′4 and between the fourth and fifth connection wiring patterns 112′a4 and 112′a5 on the first connection wiring pattern 112b′1. And a through hole 116 ′ is formed between the sixth and seventh connection wiring patterns 112 ′ a 6 and 112 ′ a 7.

  In addition, on the second connection wiring pattern 112′b2, between the second and third connection wiring patterns 112′a2 and 112′a3, and between the third and fourth connection wiring patterns 112′a3 and 112′a4. Through-holes 116 ′ are formed between the fifth and sixth connection wiring patterns 112′a5 and 112′a6 and between the sixth and seventh connection wiring patterns 112′a6 and 112′a7.

  Further, a through hole 116 ′ is formed between the first connection wiring pattern 112′b1 and the second connection wiring pattern 112′b2 on the second connection wiring pattern 112′a2 and the fifth connection wiring pattern 112′a5. Yes.

  Since the joint circuit 10 ′ is configured in this way, all of the first to sixteenth connection wiring patterns 11 ′ a 1 to 11 ′ a 16 are not electrically connected, but a predetermined combination by the through holes 116. Thus, it is electrically connected. The combinations are the first, ninth, and tenth connection terminal portions 11a′1, 11′a9, and 11′a10, and the second, third, and eleventh connection terminal portions 11a′2, 11′a3, and 11′a11. And the fourth, twelfth and thirteenth connection terminal portions 11a′4, 11a′12 and 11′a13, the fifth, sixth and fourteenth connection terminal portions 11a′5, 11′a6 and 11′a14, The seventh, eighth, fifteenth, and sixteenth connection terminal portions 11a′7, 11′a8, 11′a15, and 11′a16. That is, the connection terminal portions 11'a1 to 11'a16 are connected to each other in a combination of 3 poles: 3 poles: 3 poles: 3 poles: 4 poles.

  As shown in FIG. 10, the first housing 22 ′ is provided with a flat insertion port 221 ′ into which the connection terminal portion 11 ′ of the joint circuit 10 ′ is inserted in the upper and lower ends on the distal end side. A terminal housing hole 222 ′ for housing each of the plurality of connection terminals 21 is formed, and a lance 223 ′ for locking the connection terminal 121 is formed inside the first housing 22 ′.

[Modification of Second Embodiment]
With reference to FIGS. 12-14, the modification of the joint connector which concerns on 1st Embodiment is demonstrated. The modified examples shown in FIGS. 12 to 14 differ from the second embodiment described above in that the positions and the number of through-holes 116 ′ of the joint circuit are changed.

  The joint circuit 10′a of FIG. 12 includes, on the first and second connection wiring patterns 112b′1 and 112′b2, between the second and third connection wiring patterns 112′a3 and 112′a4, A through-hole 116 ′ is formed between the sixth connection wiring patterns 112′a5 and 112′a6.

  Therefore, the combination of the connection terminal portions 11 ′ electrically connected to each other includes the first to third, ninth to eleventh connection terminal portions 11′a1 to 11′a3, 11′a9 to 11′a11, Fourth, fifth, twelfth and thirteenth connection terminal portions 11'a4, 11'a5, 11'a12, 11'a13, and sixth to eighth, fourteenth to sixteenth connection terminal portions 11'a6 to 11 'a8, 11'a14 to 11'a16. That is, the connection terminal portions 11'a1 to 11'a16 are connected to each other in a combination of 6 poles: 4 poles: 6 poles.

  The joint circuit 10′b of FIG. 13 has a through hole 116 ′ between the fifth and sixth connection wiring patterns 112′a5 and 112′a6 on the first and second connection wiring patterns 112b′1 and 112′b2. Is formed.

  Therefore, the combination of the connection terminal portions 11 ′ electrically connected to each other includes the first to fifth, ninth to thirteenth connection terminal portions 11′a1 to 11′a5, 11′a9 to 11′a13, The sixth to eighth and fourteenth to sixteenth connection terminal portions 11′a6 to 11′a8 and 11′a14 to 11′a16. That is, the connection terminal portions 11'a1 to 11'a16 are connected to each other in a combination of 10 poles: 6 poles.

  The joint circuit 10′c in FIG. 14 includes, on the first connection wiring pattern 112′b1, between the third and fourth connection wiring patterns 112′a3 and 112′a4, and the fourth and fifth connection wiring patterns 112 ′. A through-hole 116 'is formed between a4 and 112'a5 and between the sixth and seventh connection wiring patterns 112'a6 and 112'a7. Similarly, on the second connection wiring pattern 112′b2, between the third and fourth connection wiring patterns 112′a3 and 112′a4, and the fifth and sixth connection wiring patterns 112′a5 and 112′a6. A through hole 116 ′ is formed between the sixth and seventh connection wiring patterns 112 ′ a 6 and 112 ′ a 7. In addition, a through hole 116 ′ is formed on the fifth connection wiring pattern 112 a ′ 5 between the first and second connection wiring patterns 112 b ′ 1 and 112 b ′ 2.

  Therefore, the combination of the connection terminal portions 11 ′ electrically connected to each other includes the first to third, ninth to eleventh connection terminal portions 11′a1 to 11′a3, 11′a9 to 11′a11, Fourth, twelfth and thirteenth connection terminal portions 11′a4, 11′a12 and 11′a13, fifth, sixth and fourteenth connection terminal portions 11′a5, 11′a6 and 11′a14, and seventh , Eighth, fifteenth, and sixteenth connection terminal portions 11′a7, 11′a8, 11′a15, and 11′a16. That is, the connection terminal portions 11'a1 to 11'a16 are connected to each other in a combination of 6 poles: 3 poles: 3 poles: 4 poles.

[Method of Manufacturing Joint Circuit According to Second Embodiment]
Next, a method for manufacturing the joint circuit 10 ′ according to the second embodiment will be described.

  As shown in FIG. 15, first, a plurality of circuits are cut out from the flexible printed circuit 40 ′, and the cover lay at the end is removed to manufacture the small circuit 50 ′.

  As shown in FIG. 15, the flexible printed circuit 40 ′ mainly includes a flexible insulating substrate 111 ′, a wiring pattern 112 ′, and a cover lay 113 ′. The wiring pattern 112 ′ includes first to nth connection wiring patterns 112′a1 to 112′an extending in parallel with each other, and each of the wiring patterns 112′a1 to 112′an extending in parallel with the connection wiring patterns 112′a1 to 112′an. The first to nth connection wiring patterns 112′b1 to 112′bn are configured.

  The positions where the cutting circuit 50 ′ is cut out from the flexible printed circuit 40 ′ are, for example, a cutting line 41 ′ and a cutting line 42 ′ as shown in FIG. 15. The cut-out line 41 ′ is parallel to the connection wiring pattern 112 ′ a and between the connection wiring patterns 112 ′ a (in the case of FIG. 15, between the 8th and 9th connection wiring patterns (m is a natural number)). The cut-out line 42 ′ is parallel to the connection wiring pattern 112b and is between the connection wiring patterns 112′b (in the case of FIG. 15, between the 2m and 3m connection wiring patterns (m is a natural number)). .

  Subsequently, the cover lay 113 ′ at the end of each circuit cut out as described above is removed, and the small circuit 50 is manufactured. Then, through holes are provided on the connection wiring patterns 112'a1 to 112'an or the connection wiring patterns 112'b1 to 112b'n of the small circuit 50, and the joint circuit 10 'is manufactured.

  Although the embodiments of the invention have been described above, the present invention is not limited to these embodiments, and various modifications, additions, substitutions, and the like can be made without departing from the spirit of the invention. For example, in the present embodiment, the through hole is a round hole, but may be a rectangle, and a method of providing the through hole may be any method that disconnects the wiring pattern, such as a drill or a punch.

It is a disassembled perspective view which shows the state before the coupling | bonding of the joint connector which concerns on 1st Embodiment of this invention. It is a top view of the joint circuit of the joint connector concerning a 1st embodiment of the present invention. It is sectional drawing by the A-A 'line | wire of FIG. 1 which shows the connection state of the joint connector which concerns on 1st Embodiment of this invention. It is a figure which shows the modification of the joint circuit of the joint connector which concerns on 1st Embodiment. It is a figure which shows the modification of the joint circuit of the joint connector which concerns on 1st Embodiment. It is a figure which shows the modification of the joint circuit of the joint connector which concerns on 1st Embodiment. It is a figure which shows the modification of the joint circuit of the joint connector which concerns on 1st Embodiment. It is a figure which shows the modification of the joint circuit of the joint connector which concerns on 1st Embodiment. It is a figure which shows the flexible printed circuit used for manufacture of the joint circuit which concerns on 1st Embodiment of this invention. It is sectional drawing of the joint connector which concerns on 2nd Embodiment of this invention. It is a top view of the joint circuit of the joint connector concerning a 2nd embodiment of the present invention. It is a figure which shows the modification of the joint circuit of the joint connector which concerns on 2nd Embodiment of this invention. It is a figure which shows the modification of the joint circuit of the joint connector which concerns on 2nd Embodiment of this invention. It is a figure which shows the modification of the joint circuit of the joint connector which concerns on 2nd Embodiment of this invention. It is a figure which shows the flexible printed circuit used for manufacture of the joint circuit which concerns on 2nd Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10,10 '... Joint circuit 11, 11' ... Connection terminal part, 111, 111 '... Flexible insulation board, 112, 112' ... Wiring pattern, 113, 113 '... Coverlay, 114, 114' ... Opening 115, 115 '... reinforcing plate, 116, 116' ... through hole, 20, 20 '... connector, 21 ... connection terminal, 211 ... slit, 212, 213 ... pressure contact piece, 214 ... pressure contact portion, 215 ... wire crimping portion 216 ... Covered wire crimping part, 217 ... Electric wire crimping part, 218 ... Opening, 22 ... First connector, 221 ... Insertion port, 222 ... Terminal receiving hole, 223 ... Lance, 224 ... Locking projection, 23 ... First 2 connectors, 231 ... connector insertion slot, 232 ... locking lock, 30 ... electric wire, 40, 40 '... flexible printed circuit, 50, 50' ... cutting circuit.

Claims (5)

A joint connector having a joint circuit and a mating terminal connected to ends of a plurality of wires connectable to the joint circuit,
The joint circuit is
A flexible insulating substrate;
A wiring pattern formed in a comb shape or a lattice shape on one surface of the flexible insulating substrate;
A coverlay for protecting the wiring pattern formed on the wiring pattern;
A connection terminal portion connected to the connection terminal from which the cover pattern of the end portion of the flexible insulating substrate is removed and the wiring pattern is exposed;
A joint connector comprising: the flexible insulating substrate that breaks a part of the wiring pattern; and a through-hole formed through the wiring pattern and the coverlay.   The joint connector according to claim 1, wherein the connection terminal portion is formed at least at an end portion of two or more sides of the joint circuit. A flexible insulating substrate;
A wiring pattern formed in a comb shape or a lattice shape on one surface of the flexible insulating substrate;
A coverlay for protecting the wiring pattern formed on the wiring pattern;
A connection terminal portion connected to the connection terminal from which the cover pattern of the end portion of the flexible insulating substrate is removed and the wiring pattern is exposed;
A joint circuit comprising: the flexible insulating substrate that disconnects a part of the wiring pattern; and a through hole formed through the wiring pattern and the coverlay.   The joint circuit according to claim 3, wherein the connection terminal portion is formed at least at an end portion of two or more sides of the joint circuit. A flexible printed circuit having a plurality of first wiring patterns extending in parallel and a second wiring pattern extending in parallel with each of the plurality of first wiring patterns, and the plurality of first patterns and at least one of the plurality of first wiring patterns. Cutting out a plurality of circuits including the second wiring pattern;
Forming a through-hole so as to disconnect at least one of the first wiring pattern and the second wiring pattern of the plurality of cut-out circuits.

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