JP6317929B2 - Flat cable with connector and flat cable - Google Patents

Description

  The present invention relates to a flat cable with a connector provided with a connector connected to a mating connector, and the flat cable.

  A flat cable having a plurality of flat conductors is formed by connecting a connection terminal to the flat conductor, and housing these connection terminals in a terminal housing chamber formed in a connector housing and partitioned by a partition wall. Is done. Then, by connecting the connector to the counterpart connector, the connection terminal of the counterpart connector and the connection terminal connected to the flat conductor are electrically connected.

  In addition, in the flat cable with a connector, a part of the partition wall of the connector housing is removed, and a retainer having a partition wall is inserted from the rear end of the connector housing, and the housing is formed on both sides of the insulation covering portion between adjacent flat conductors of the flat cable. There is known a technique in which the tip of the partition wall and the tip of the partition wall of the retainer are brought into contact in a pressurized state (see Patent Document 1).

Japanese Patent No. 3977183

  According to the flat cable with a connector described in Patent Document 1, it is not necessary to provide a slit formed in the flat cable in order to avoid interference with the partition wall. This prevents a problem that the flat conductor is exposed at the slit portion and current leaks between adjacent flat conductors.

  However, since this flat cable with a connector requires a retainer which is a separate part, the cost increases due to an increase in the number of parts.

  Moreover, in this flat cable with a connector, housings and retainers corresponding to various flat cables having different flat conductor width dimensions must be separately prepared, and the total number of housing and retainer product numbers increases. This increases the manufacturing cost.

  This invention is made | formed in view of the situation mentioned above, The objective is providing the flat cable with a connector which can aim at cost reduction, ensuring the favorable leak-proof performance, and its flat cable. It is in.

In order to achieve the above-described object, a flat cable with a connector according to the present invention is characterized by the following (1) and (2).
(1) A flat cable with a connector with a connector attached to the end of the flat cable,
The flat cable has a plurality of conductors arranged in parallel and an insulating material covering the periphery of the arranged conductors,
The connector includes a plurality of cavities that are arranged in a row and that accommodate connection terminals that are conductively connected to the conductor at an end of the flat cable, and a partition that partitions the adjacent cavities,
In the flat cable, a slit in which the partition wall is disposed is formed between the conductors having different width dimensions adjacent to each other, and the edge of the conductor adjacent to each other in the slit has the smaller width dimension. The edge of the conductor is covered with the insulating material, the edge of the conductor having the larger width dimension is exposed ,
The smaller one of the width dimensions of the conductors adjacent to each other is smaller than the width dimension of the cavity,
A flat cable with a connector.
(2) The plurality of cavities have the same width dimension.
A flat cable with a connector as described in (1) above.

In the flat cable with a connector configured as described in (1) above, for example, a cavity having the same width dimension as compared with the case where a connector having a retainer or a connector having a cavity having a different width according to the width of the flat conductor is used Therefore, it is possible to reduce the number of parts and reduce the cost by simplifying the shape. In addition, the cavities are partitioned by the partition walls, and at least one of the edges of the conductors adjacent to each other in the slit of the flat cable in which the partition walls are disposed is covered with an insulating material. Current leakage can be suppressed.
Furthermore , in the flat cable with a connector having the configuration ( 1 ), the edge of the narrow conductor among the edges of the conductors adjacent to each other in the slit is covered with the insulating material. In manufacturing this flat cable, it is only necessary to form a slit by punching a wide conductor among adjacent conductors. For this reason, compared with the case where a narrow conductor is punched out of adjacent conductors to form a slit, the dimension of the slit can be designed with more flexibility.

In order to achieve the above-described object, the flat cable according to the present invention is characterized by the following (3).
(3) a plurality of conductors arranged in parallel;
An insulating material covering the periphery of the conductors arranged, and
A slit is formed between the conductors having different width dimensions adjacent to each other, and the edge of the conductor having the smaller width dimension among the edges of the conductors adjacent to each other in the slit is covered with the insulating material. The edge of the conductor having the larger width dimension is exposed ,
A flat cable characterized by that.

  In the flat cable having the configuration (3), since at least one of the edges of the conductors adjacent to each other in the slit of the flat cable is covered with the insulating material, current leakage between the conductors adjacent to each other is suppressed. be able to.

  ADVANTAGE OF THE INVENTION According to this invention, the flat cable with a connector which can aim at cost reduction, ensuring the favorable leak-proof performance, and its flat cable can be provided.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a perspective view of a flat cable with a connector according to the present embodiment. FIG. 2 is a horizontal sectional view of the connector portion of the flat cable with connector. FIG. 3 is an enlarged perspective view of the flat cable with connector as viewed from the terminal insertion portion side of the connector. FIG. 4 is a horizontal sectional view of a connector portion of a flat cable with a connector according to a comparative example. FIG. 5 is an enlarged perspective view of the flat cable with connector according to the comparative example as viewed from the terminal insertion portion side of the connector. FIG. 6 is a horizontal cross-sectional view of the connector portion of the flat cable with connector according to the first modification. FIG. 7 is a horizontal cross-sectional view of the connector portion of the flat cable with connector according to the second modification. FIG. 8 is a horizontal cross-sectional view of the connector portion of the flat cable with connector according to Modification 3.

  Hereinafter, an example of an embodiment according to the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a flat cable with a connector according to the present embodiment. FIG. 2 is a horizontal sectional view of the connector portion of the flat cable with connector. FIG. 3 is an enlarged perspective view of the flat cable with connector as viewed from the terminal insertion portion side of the connector.

  As shown in FIGS. 1 and 2, the flat cable 10 with a connector according to the present embodiment includes a connector 11 and a flat cable 12.

  The connector 11 has a housing 20 molded from a synthetic resin such as plastic, for example, and the front side of the housing 20 is a connection portion 21 connected to the mating connector. The rear side of the housing 20 is a terminal insertion portion 22. The housing 20 is formed with a plurality of flat cable connection portions 23 in the vertical direction (three steps in this example). The flat cable connection portion 23 has a plurality of (three in this example) cavities 24A, 24B, and 24C, and these cavities 24A, 24B, and 24C are arranged in the lateral direction. Connection terminals 41A, 41B, and 41C, which will be described later, are inserted into the cavities 24A, 24B, and 24C from the terminal insertion portion 22 on the rear side of the housing 20. In the flat cable connecting portion 23 of the housing 20, partition walls 25 are formed between the cavities 24 </ b> A, 24 </ b> B, and 24 </ b> C adjacent to each other in the lateral direction, and the cavities 24 </ b> A and 24 </ b> B adjacent in the lateral direction are formed by these partition walls 25. 24C are partitioned. The cavities 24A, 24B, and 24C have the same width dimension W. As described above, the housing 20 of the connector 11 is a general-purpose connector having the partition walls 25 and cavities 24A, 24B, and 24C having the same width W formed by the partition walls 25.

  On the other hand, the flat cable 12 has a plurality (three in this example) of flat conductors 31A, 31B, and 31C. The flat cable 12 is configured by affixing an insulating film (insulating material) 32 made of an insulating resin from the front and back surfaces of the flat conductors 31A, 31B, 31C arranged in parallel. The arranged flat conductors 31 </ b> A, 31 </ b> B, and 31 </ b> C are covered with an insulating film 32. The flat cable 12 has insulating properties between the flat conductors 31A and 31B, between the flat conductors 31B and 31C, outside the flat conductor 31A on one side and outside the flat conductor 31C on the other side. An insulating part 33 in which the films 32 are bonded together is provided.

  As shown in FIG. 2, the flat conductors 31A, 31B, 31C constituting the flat cable 12 have different width dimensions WA, WB, WC. Specifically, the width dimension WB of the central flat conductor 31B adjacent to the flat conductor 31A is made smaller than the width dimension WA of the flat conductor 31A on one side, and the other side adjacent to the flat conductor 31B. The width dimension WC of the flat conductor 31C of the part is made larger than the width dimension WA of the flat conductor 31A of the one side part. Thus, in this flat cable 12, the flat conductor 31B having the smallest width dimension is arranged at the center. That is, the width dimensions WA, WB, and WC of these flat conductors 31A, 31B, and 31C have the following relationship.

  WB <WA <WC

  The width dimension WA of the flat conductor 31A on one side is substantially the same as the width dimension W of the cavities 24A, 24B, and 24C. The flat conductor 31B having the minimum width dimension WB has a width dimension WB smaller than the width dimension W of the cavities 24A, 24B, and 24C. Further, the flat conductor 31C having the maximum width dimension WC has a width dimension WC larger than the width dimension W of the cavities 24A, 24B, 24C.

  A plurality of slits 35 </ b> A and 35 </ b> B are formed at the end of the flat cable 12. These slits 35 </ b> A and 35 </ b> B are formed at positions corresponding to the partition walls 25 of the housing 20 on one side of the flat cable 12. The slits 35A and 35B have a width dimension slightly larger than the thickness dimension of the partition wall 25 of the housing 20, and the partition wall 25 of the housing 20 is inserted into the slits 35A and 35B. Further, at the end of the flat cable 12, a notch 36 is formed on the other side to avoid interference with the housing 20. As described above, the flat cable 12 is provided with the insertion portions 37A, 37B, and 37C that can be inserted into the cavities 24A, 24B, and 24C by forming the slits 35A and 35B and the notch portions 36.

  In the insertion portion 37A, the edge portion on the opposite side to the insertion portion 37B is an insulating portion 33 in which the insulating film 32 is bonded and the flat conductor 31A is covered, and at the edge portion on the adjacent insertion portion 37B side, The flat conductor 31A is exposed.

  In the insertion part 37B, the edge part on the adjacent insertion part 37A side is an insulating part 33 in which the insulating film 32 is bonded and the flat conductor 31B is covered. Similarly, the edge on the adjacent insertion part 37C side The portion is an insulating portion 33 in which the insulating film 32 is bonded and the flat conductor 31B is covered.

  In the insertion portion 37C, the flat conductor 31C is exposed at the edge portion on the adjacent insertion portion 37B side, and similarly, the flat conductor 31C is exposed at the edge portion opposite to the insertion portion 37B.

  The flat cable 12 is provided with connection terminals 41A, 41B, and 41C on one end side thereof. These connection terminals 41A, 41B, and 41C are provided in the insertion portions 37A, 37B, and 37C in the flat cable 12. The connection terminals 41 </ b> A, 41 </ b> B, and 41 </ b> C have a terminal portion 42 and a caulking portion 43. The terminal part 42 is electrically connected by inserting the tab terminal part of the connection terminal of the mating connector. The caulking portion 43 has a plurality of blades 43a, and these blades 43a are inserted into the insertion portions 37A, 37B, and 37C of the flat cable 12 and caulked to be electrically connected to the flat conductors 31A, 31B, and 31C. Connected. Note that the connection terminals 41A, 41B, and 41C are connected to the insertion portions 37A, 37B, and 37C of the flat cable 12 in addition to piercing that stabs the blade 43a and caulking, for example, crimping, pressure welding, and ultrasonic welding. Alternatively, there is a connection technique such as resistance welding.

  These connection terminals 41A, 41B, and 41C are held in the cavities 24A, 24B, and 24C by being inserted into the cavities 24A, 24B, and 24C from the terminal insertion portion 22 side of the housing 20. . Thereby, the flat cable 10 with a connector in which the housing 20 of the connector 11 is attached to the flat cable 12 is formed.

  In this flat cable with connector 10, when the mating connector is connected to the connection portion 21 of the connector 11, the terminal portion 42 of the connection terminal 41 </ b> A, 41 </ b> B, 41 </ b> C and the tab terminal portion of the connection terminal of the mating connector are connected. It is electrically connected and the flat conductors 31A, 31B, 31C of the flat cable 12 can be energized.

  Here, in the flat cable with connector 10 according to the present embodiment, as shown in FIG. 3, the edge of one flat conductor 31B of the flat conductor 31A and the flat conductor 31B adjacent to each other at the location where the slit 35A is formed is An insulating portion 33 is formed, and an edge portion of one flat conductor 31B of the flat conductor 31B and the flat conductor 31C adjacent to each other at a position where the slit 35B is formed is the insulating portion 33. Accordingly, when the flat conductors 31A, 31B, 31C are energized, current leakage between the adjacent flat conductors 31A, 31B and between the flat conductors 31B, 31C is suppressed.

  FIG. 4 shows a flat cable 10A with a connector according to a comparative example in which the flat conductor 31B and the flat conductor 31C adjacent to each other are exposed at the location where the slit 35B is formed. As shown in FIG. 5, when using a general-purpose connector in which the width dimension W of the cavities 24A, 24B, and 24C is set in the same position in advance, the flats adjacent to each other in the part where the partition wall 25 does not enter in the slit 35B. The exposed portions of the conductors 31B and 31C may be in close proximity. As a result, current may leak between the flat conductors 31B and 31C adjacent to each other when the flat conductors 31A, 31B, and 31C are energized.

  As described above, according to the flat cable with connector 10 according to the present embodiment, for example, compared with the case of using a connector having a retainer or a connector having cavities with different width dimensions according to the width dimension of the flat conductor. And since the connector 11 which has the cavities 24A, 24B, and 24C of the same width W like the general purpose connector is used, the cost reduction by reduction of a number of parts and simplification of a shape can be achieved. The cavities 24A, 24B, and 24C are partitioned by the partition wall 25, and the edge of the flat conductor 31A adjacent to each other in the slit 35A of the flat cable 12 in which the partition wall 25 is disposed, the edge of the flat conductor 31B, and the slit 35B. At least one of the edge of the flat conductor 31B and the edge of the flat conductor 31C adjacent to each other is an insulating portion 33 covered with an insulating film 32. Thereby, current leakage between the flat conductor 31A and the flat conductor 31B adjacent to each other and between the flat conductor 31B and the flat conductor 31C can be suppressed.

  That is, according to the flat cable 10 with a connector according to the present embodiment, it is possible to reduce costs while ensuring good leakage resistance.

  Further, in the flat cable with connector 10 according to the present embodiment, among the edges of the flat conductors 31A, 31B, 31C adjacent to each other in the slits 35A, 35B, the edge of the narrow flat conductor 31B is formed by the insulating film 32. Covered. In manufacturing the flat cable 10, the wide flat conductors 31A, 31C among the adjacent flat conductors 31A, 31B, 31C may be punched to form the slits 35A, 35B. For this reason, compared with the case where a narrow conductor is punched out of adjacent conductors to form a slit, the dimension of the slit can be designed with more flexibility. In addition, the structure which covers the edge part of the narrow flat conductor 31B with the insulating film 32 is not an essential structure for this invention. The edge of the wide conductor can be covered with an insulating material.

  Next, a flat cable with a connector according to a modification will be described.

(Modification 1)
FIG. 6 is a horizontal cross-sectional view of the connector portion of the flat cable with connector according to the first modification.

  As shown in FIG. 6, in this flat cable with connector 10B, the width dimensions WA, WB, WC of the flat conductors 31A, 31B, 31C of the flat cable 12 have the following relationship.

  WA <WB <WC

  The flat cable 12 is provided with insertion portions 37A, 37B, and 37C that can be inserted into the cavities 24A, 24B, and 24C by forming slits 35A and 35B and a notch 36.

  In the insertion portion 37A, the edge on the side of the adjacent insertion portion 37B is an insulating portion 33 in which the insulating film 32 is bonded and the flat conductor 31A is covered. Similarly, the edge on the opposite side to the insertion portion 37B The portion is an insulating portion 33 in which the insulating film 32 is bonded and the flat conductor 31A is covered.

  In the insertion portion 37B, the flat conductor 31B is exposed at the edge portion on the adjacent insertion portion 37A side, and the edge portion on the insertion portion 37C side is covered with the insulating film 32 and covered with the flat conductor 31B. This is part 33.

  In the insertion portion 37C, the flat conductor 31C is exposed at the edge portion on the adjacent insertion portion 37B side, and similarly, the flat conductor 31C is exposed at the edge portion opposite to the insertion portion 37B.

(Modification 2)
FIG. 7 is a horizontal cross-sectional view of the connector portion of the flat cable with connector according to the second modification.

  As shown in FIG. 7, in this flat cable with connector 10C, the width dimensions WA, WB, WC of the flat conductors 31A, 31B, 31C of the flat cable 12 have the following relationship.

  WA <WB <WC

  The flat cable 12 is provided with insertion portions 37A, 37B, and 37C that can be inserted into the cavities 24A, 24B, and 24C by forming slits 35A and 35B and a notch 36.

  In the insertion portion 37A, the edge on the side of the adjacent insertion portion 37B is an insulating portion 33 in which the insulating film 32 is bonded and the flat conductor 31A is covered. Similarly, the edge on the opposite side to the insertion portion 37B The portion is an insulating portion 33 in which the insulating film 32 is bonded and the flat conductor 31A is covered.

  In the insertion portion 37B, the flat conductor 31B is exposed at the edge portion on the adjacent insertion portion 37A side, and similarly, the flat conductor 31B is exposed at the edge portion on the insertion portion 37C side.

  In the insertion portion 37C, the edge portion on the side of the adjacent insertion portion 37B is an insulating portion 33 in which the insulating film 32 is bonded and the flat conductor 31C is covered, and at the edge portion on the opposite side to the insertion portion 37B, The flat conductor 31C is exposed.

(Modification 3)
FIG. 8 is a horizontal cross-sectional view of the connector portion of the flat cable with connector according to Modification 3.

  As shown in FIG. 8, in this flat cable with connector 10D, the width dimensions WA, WB, WC of the flat conductors 31A, 31B, 31C of the flat cable 12 have the following relationship.

  WA = WC <WB

  The flat cable 12 is provided with insertion portions 37A, 37B, and 37C that can be inserted into the cavities 24A, 24B, and 24C by forming only the slits 35A and 35B.

  In the insertion portion 37A, the edge on the side of the adjacent insertion portion 37B is an insulating portion 33 in which the insulating film 32 is bonded and the flat conductor 31A is covered. Similarly, the edge on the opposite side to the insertion portion 37B The portion is an insulating portion 33 in which the insulating film 32 is bonded and the flat conductor 31A is covered.

  In the insertion portion 37B, the flat conductor 31B is exposed at the edge portion on the adjacent insertion portion 37A side, and similarly, the flat conductor 31B is exposed at the edge portion on the insertion portion 37C side.

  In the insertion portion 37C, the edge on the side of the adjacent insertion portion 37B is an insulating portion 33 in which the insulating film 32 is bonded and the flat conductor 31C is covered. Similarly, the edge on the opposite side to the insertion portion 37B The portion is an insulating portion 33 in which the insulating film 32 is bonded and the flat conductor 31C is covered.

  In the case of the flat cables 10B to 10D with connectors according to the first to third modifications, for example, as compared with the case where a connector having a retainer or a connector having a cavity with a different width according to the width of the flat conductor is used. Since the connector 11 having the cavities 24A, 24B, and 24C having the same width W is used as a general-purpose connector, the number of parts can be reduced and the cost can be reduced by simplifying the shape. The cavities 24A, 24B, and 24C are partitioned by the partition wall 25, and the edge of the flat conductor 31A, the edge of the flat conductor 31B, and the slit 35B adjacent to each other in the slit 35A of the flat cable 12 in which the partition wall 25 is disposed. At least one of the edge of the flat conductor 31B and the edge of the flat conductor 31C adjacent to each other is an insulating portion 33 covered with an insulating film 32. Thereby, current leakage between the flat conductor 31A and the flat conductor 31B adjacent to each other and between the flat conductor 31B and the flat conductor 31C can be suppressed.

  In addition, although the said embodiment demonstrated taking the case of the thing provided with the flat cable which has three flat conductors, the flat cable may have two flat conductors or four or more flat conductors.

  Moreover, in the said embodiment, although the flat cable which bonded the insulating film from the front and back to the arranged flat conductor was illustrated, as a flat cable, the coating | cover consisting of insulating resin is arranged around the arranged flat conductor. It may be extruded.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

Here, the features of the above-described flat cable with a connector according to the present invention and the embodiments of the flat cable are briefly summarized and listed in the following (1) to (3), respectively.
(1) A flat cable (10, 10B, 10C, 10D) with a connector in which a connector (11) is attached to an end of the flat cable (12),
The flat cable has a plurality of conductors arranged in parallel (flat conductors 31A, 31B, 31C) and an insulating material (insulating film 32) covering the periphery of the arranged conductors,
The connectors are arranged in a row and adjacent to a plurality of cavities (24A, 24B, 24C) in which connection terminals (41A, 41B, 41C) that are conductively connected to the conductors at the ends of the flat cable are accommodated. A partition wall (25) partitioning the cavity,
In the flat cable, slits (35A, 35B) in which the partition walls are arranged are formed between the conductors adjacent to each other, and at least one edge of the edges of the conductors adjacent to each other in the slit Is covered by the insulating material,
A flat cable with a connector.
(2) Of the edges of the conductors adjacent to each other in the slit, the edge of the narrow conductor is covered with the insulating material.
(1) The flat cable with a connector according to (1).
(3) a plurality of conductors (flat conductors 31A, 31B, 31C) arranged in parallel;
An insulating material (insulating film 32) covering the periphery of the conductors arranged,
A slit (35A, 35B) is formed between the conductors adjacent to each other, and at least one of the edges of the conductors adjacent to each other in the slit is covered with the insulating material,
A flat cable characterized by that.

10, 10B, 10C, 10D Flat cable with connector 11 Connector 12 Flat cable 24A, 24B, 24C Cavity 25 Bulkhead 31A, 31B, 31C Flat conductor (conductor)
32 Insulating film (insulating material)
35A, 35B Slit 41A, 41B, 41C Connection terminal

Claims (3)

A flat cable with a connector with a connector attached to the end of the flat cable,
The flat cable has a plurality of conductors arranged in parallel and an insulating material covering the periphery of the arranged conductors,
The connector includes a plurality of cavities that are arranged in a row and that accommodate connection terminals that are conductively connected to the conductor at an end of the flat cable, and a partition that partitions the adjacent cavities,
In the flat cable, a slit in which the partition wall is disposed is formed between the conductors having different width dimensions adjacent to each other, and the edge of the conductor adjacent to each other in the slit has the smaller width dimension. The edge of the conductor is covered with the insulating material, the edge of the conductor having the larger width dimension is exposed ,
The smaller one of the width dimensions of the conductors adjacent to each other is smaller than the width dimension of the cavity,
A flat cable with a connector. The plurality of cavities have the same width dimension;
The flat cable with a connector according to claim 1. A plurality of conductors arranged in parallel;
An insulating material covering the periphery of the conductors arranged, and
A slit is formed between the conductors having different width dimensions adjacent to each other, and the edge of the conductor having the smaller width dimension among the edges of the conductors adjacent to each other in the slit is covered with the insulating material. The edge of the conductor having the larger width dimension is exposed ,
A flat cable characterized by that.

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