JP5878817B2 - Connection structure of flat circuit body - Google Patents

Description

  According to the present invention, a plurality of conductor patterns in a connection terminal portion of a flat circuit body such as an FPC (Flexible Printed Circuit) or an FFC (Flexible Flat Cable) arranged in a plane at a predetermined arrangement pitch is provided as the flat circuit. The present invention relates to a connection structure for a flat circuit body that is conductively connected to a plurality of contact patterns provided on the surface of a circuit board at the same arrangement pitch as a conductor pattern in the body.

FIG. 16 shows a conventional example of a connection structure of flat circuit bodies.
The connection structure of the flat circuit body is disclosed in Patent Document 1 below.

  In the connection structure of the flat circuit body in Patent Document 1 below, the conductor pattern 111 in the connection terminal portion 101 of the flat circuit body 100 is connected to the contact pattern 311 provided on the surface of the circuit board 300 via the board connector 200. Make a conductive connection.

  In Patent Document 1, a resin housing 220 of the board connector 200 is fitted into a housing positioning hole 320 formed through the circuit board 300 so that the board connector 200 is connected to the contact pattern 311 on the circuit board 300. Position it at a position corresponding to.

  The board connector 200 is provided with a circuit body housing portion 202 that fits and connects the connection terminal portion 101 of the flat circuit body 100 on one side surface 201. In addition, on the side surface opposite to the side surface 201 of the board connector 200, board connection terminals 211 to be soldered to the contact pattern 311 are arranged.

  In the resin housing 220, the end of the substrate connection terminal 211 is connected so that each conductor pattern 111 of the connection terminal portion 101 fitted and connected to the circuit body housing portion 202 is electrically connected to the end portion of the substrate connection terminal 211. The part shape and the like are set.

  Further, in Patent Document 2 below, without using the board connector 200 as in Patent Document 1, the conductor pattern on the flat circuit body is brought into press contact with the contact pattern on the circuit board, so that the conductor pattern and the contact point are contacted. A connection structure of a flat circuit body for conducting a conductive connection with a pattern is disclosed.

  In the case of the connection structure of the flat circuit body in Patent Document 2, the flat circuit body is folded back in the longitudinal direction of the circuit body, and the covering layer on the outer surface side of the folded portion is removed to expose the conductor pattern on the outer surface side of the folded portion. I am letting. And the conductor pattern exposed to the folding | turning part is press-contacted to the contact pattern on a circuit board by fixing the housing | casing (In patent document 2, the housing 27) which supports a folding | turning part to a circuit board.

Japanese Patent Laid-Open No. 11-195869 JP 2001-351705 A

  However, in the case of the connection structure of the flat circuit body in Patent Document 1, a troublesome soldering operation is required for the circuit board, and there is a problem that productivity is poor.

  Moreover, in the case of the connection structure of the flat circuit body in Patent Document 2, the conductor pattern is pressed against the contact pattern by utilizing the bending rigidity of the folded portion of the flat circuit body itself. Therefore, when the bending rigidity of the flat circuit body itself changes, the contact pressure between the conductor pattern and the contact pattern changes, and there is a possibility that stable conductive connection cannot be obtained.

  Accordingly, an object of the present invention is to solve the above-mentioned problems, and does not require laborious soldering work on the circuit board, and a plurality of conductor patterns on the flat circuit body and a plurality of contact patterns on the circuit board. An object of the present invention is to provide a connection structure of a flat circuit body that can simplify the conductive connection with the circuit. Furthermore, the object of the present invention is to provide a stable contact pressure for any of a plurality of conductor patterns on the flat circuit body without being affected by the bending rigidity of the flat circuit body itself even if the bending rigidity of the flat circuit body itself changes. An object of the present invention is to provide a flat circuit body connection structure that can be conductively connected to a plurality of contact patterns on a circuit board.

The above-described object of the present invention is achieved by the following configuration.
(1) A conductor pattern in a connection terminal portion of a flat circuit body in which a plurality of conductor patterns are arranged in a plane at a predetermined arrangement pitch is mounted on the surface of the circuit board at the same arrangement pitch as the conductor pattern in the flat circuit body. A connection structure of a flat circuit body that is conductively connected to a plurality of contact patterns,
A circuit body support frame for locking the flat circuit body so that the conductor pattern of the connection terminal portion is exposed on the lower surface;
A pressing member main body bottom surface is fitted into the upper portion of the circuit body support frame so as to face the surface of the circuit board, the circuit body provided with a bottom portion of the pressing member main body movably toward said circuit board The flat circuit body mounted on the circuit body support frame, comprising: a contact member; and a resilient member that urges the circuit body contact member toward the lower surface of the circuit body support frame. A circuit body pressing member that presses the connection terminal portion toward the circuit board by the circuit body contact member;
A board fixing part fixed to the surface of the circuit board; and a support frame fitting part formed integrally with the board fixing part and capable of fitting the circuit body support frame. A support frame receiving member having a pressing member positioning portion for positioning the circuit body pressing member so that the circuit body contact member presses the connection terminal portion against the circuit board;
It comprise said that a state in which the conductor pattern of the connecting terminal portion of the flat circuit body is pressed against the contact patterns by the circuit body pressing member, and the conductive trace and the contact pattern is electrically connected connecting structure of the flat circuit body characterized by that.

(2) The pressing member body includes a flat bottom surface that presses the flat circuit body along the surface of the circuit board,
The circuit body abutting member is flat so that the back surface of the flat circuit body can be pressed in a straight strip shape across the connection terminal portion of the flat circuit body in a state where the bottom surface of the pressing member body is inserted. The flat circuit body connection structure according to (1), wherein the flat circuit body is in contact with the back surface of the circuit body.

  According to the configuration of (1) above, the conductive connection between the conductor pattern in the connection terminal portion of the flat circuit body and the contact pattern on the circuit board is connected to the circuit body support frame that holds the flat circuit body. In addition, the circuit body support frame on which the circuit body pressing member has been mounted is fitted and mounted on the support frame receiving member fixed to the circuit board, and the conductor pattern of the flat circuit body is changed to the contact pattern. This is realized by directly pressing and touching.

  This eliminates the need for troublesome soldering work on the circuit board, and facilitates the conductive connection between the plurality of conductor patterns on the flat circuit body and the plurality of contact patterns on the circuit board.

  Also, according to the configuration of (1) above, the pressing of the conductor pattern of the flat circuit body against the contact pattern on the circuit board does not depend on the bending rigidity of the flat circuit body itself, but is incorporated in the circuit body pressing member. This is done by forcibly pressing the flat circuit body against the circuit board by the circuit body abutting member.

  Therefore, even if the bending rigidity of the flat circuit body itself changes due to a change in specifications, etc., all of the multiple conductor patterns on the flat circuit body have a stable contact pressure without being affected by the bending rigidity of the flat circuit body itself. Conductive connection can be made to a plurality of contact patterns on the substrate.

  According to the configuration of (2) above, the connection terminal portion of the flat circuit body locked to the circuit body support frame is pressed against the surface of the circuit board by the bottom surface of the pressing member body mounted on the circuit body support frame. Therefore, the entire connection terminal portion is laminated on the surface of the circuit board. A part of the conductor pattern in the connection terminal portion laminated on the surface of the circuit board is pressed against the contact pattern on the circuit board by the circuit body contact member, but the portion pressed by the circuit body contact member is flat. Since it is a straight strip that crosses the connection terminal portion of the circuit body and the pressing area is narrow, a sufficient pressing force can be secured per unit area even with a small urging force.

  Therefore, it is possible to reduce the size of the connection structure by reducing the size of the elastic member, and to ensure stable conduction performance by securing a stable pressing force.

  According to the connection structure of the flat circuit body according to the present invention, the conductive connection between the conductor pattern in the connection terminal portion of the flat circuit body and the contact pattern on the circuit board is achieved by pressing the conductor pattern directly against the contact pattern. Realize.

  This eliminates the need for troublesome soldering work on the circuit board, and facilitates the conductive connection between the plurality of conductor patterns on the flat circuit body and the plurality of contact patterns on the circuit board.

  Further, according to the flat circuit body connection structure of the present invention, the pressing of the conductor pattern of the flat circuit body against the contact pattern on the circuit board does not depend on the bending rigidity of the flat circuit body itself; This is done by forcibly pressing the flat circuit body against the circuit board by the built-in circuit body abutting member.

  Therefore, even if the bending rigidity of the flat circuit body itself is changed, the plurality of conductor patterns on the flat circuit body are not affected by the bending rigidity of the flat circuit body itself. The contact pattern can be conductively connected.

  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. .

1 is an external perspective view of an embodiment of a flat circuit body connection structure according to the present invention. It is a front view of the connection structure of the flat circuit body shown in FIG. It is AA sectional drawing of FIG. It is an enlarged view of the B section of FIG. It is a disassembled perspective view of the component which implement | achieves the connection structure of the flat circuit body shown in FIG. It is a front view of the circuit body pressing member shown in FIG. It is CC sectional drawing of FIG. It is DD sectional drawing of FIG. It is an enlarged view of the E section of FIG. It is explanatory drawing of the assembly process of the circuit body press member shown in FIG. It is an arrow line view from the arrow F direction of the flat circuit body shown in FIG. It is a perspective view which shows the state before fitting and mounting a circuit body pressing member to the circuit body support frame of one Embodiment which latched the flat circuit body. It is an enlarged view of the G section of FIG. It is explanatory drawing of the process of fixing a support frame receiving member to the circuit board shown in FIG. It is a perspective view which shows the state before mounting | wearing the support frame receiving member of one Embodiment fixed to the circuit board with the circuit body support frame with which the circuit body press member is mounted | worn. It is a perspective view which shows the connection structure of the conventional flat circuit body.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a flat circuit body connection structure according to the present invention will be described in detail with reference to the drawings.

  1 to 15 show an embodiment of a connection structure for a flat circuit body according to the present invention. FIG. 1 is an external perspective view of the connection structure for a flat circuit body according to an embodiment of the present invention. 1 is a front view of the connection structure of the flat circuit body shown in FIG. 1, FIG. 3 is a sectional view taken along line AA in FIG. 2, FIG. 4 is an enlarged view of a portion B in FIG. FIG. 6 is a front view of the circuit body pressing member shown in FIG. 5, FIG. 7 is a sectional view taken along the line CC in FIG. 6, and FIG. FIG. 9 is an enlarged view of a portion E in FIG. 7, FIG. 10 is an explanatory view of an assembly process of the circuit body pressing member shown in FIG. 6, and FIG. 11 is an arrow F direction of the flat circuit body shown in FIG. FIG. 12 is a perspective view showing a state before the circuit body pressing member is fitted and attached to the circuit body support frame of the embodiment in which the flat circuit body is locked. 13 is an enlarged view of a portion G in FIG. 12, FIG. 14 is an explanatory view of a process of fixing the support frame receiving member to the circuit board shown in FIG. 5, and FIG. 15 is a support frame receiver of an embodiment fixed to the circuit board. It is a perspective view which shows the state before mounting | wearing the member with the circuit body support frame in which the circuit body press member is mounted | worn.

  The circuit board 10 used in the flat circuit body connection structure of this embodiment is a substantially rectangular printed circuit board as shown in FIGS. 5 and 14, and a plurality of contacts on a surface of one side at a predetermined arrangement pitch. Pattern 11 is arranged. The contact pattern 11 is a conductor portion that conductively connects a conductor pattern 22 of a connection terminal portion 21 of the flat circuit body 20 described later.

  The circuit board 10 is a multilayer circuit board, and although not shown, a circuit pattern and an electronic circuit are formed in an intermediate layer.

  Further, in the circuit board 10 according to the present embodiment, escape holes 12 through which circuit body support portions of a circuit body support frame 30 to be described later are inserted are formed at four positions around a region A1 where a plurality of contact patterns 11 are arranged. Has been.

  As shown in FIG. 5, in the flat circuit body connection structure of this embodiment, the flat circuit body 20 connected to the circuit board 10 is an FPC or FFC in which a plurality of conductor patterns are arranged in a plane at a predetermined arrangement pitch. . As shown in FIGS. 5 and 11, the flat circuit body 20 is provided with a connection terminal portion 21 on one surface in the length direction (a lower surface in FIG. 5) 20 a. In the connection terminal portion 21, a plurality of conductor patterns 22 are arranged at the same arrangement pitch as the contact pattern 11 on the circuit board 10. Each conductor pattern 22 is a conductor portion exposed on the surface 20a on one side so as to be conductively connected to the contact pattern 11.

  Further, a locking hole 23 is provided on one end side of the flat circuit body 20 to be locked to a circuit body support frame described later.

In the case of the present embodiment, as shown in FIG. 5, one end side of the flat circuit body 20 is formed by bending a bottom surface arrangement region 24a and a side surface arrangement region 24b in order from one end side. The bottom surface arrangement region 24a is a rectangular region disposed on the bottom surface portion of the circuit body support frame 30 described later. The side surface arrangement region 24b is a rectangular region arranged along one side surface of the circuit body support frame 30 described later.
The connection terminal portion 21 described above is provided on the lower surface of the bottom surface arrangement region 24a.

  In the connection structure of the flat circuit body of this embodiment, the conductor pattern 22 in the connection terminal portion 21 of the flat circuit body 20 is mounted on the surface of the circuit board 10 at the same arrangement pitch as the conductor pattern 22 in the flat circuit body 20. The plurality of contact patterns 11 are electrically connected.

  As shown in FIGS. 1 to 5, the flat circuit body connection structure of the present embodiment includes a circuit body support frame 30, a circuit body pressing member 40, and a support frame receiving member 50.

  The circuit body support frame 30 has a rectangular tube shape in which a circuit body pressing member 40 described later can be fitted and mounted from above, and the upper surface and the lower surface are opened. Further, the circuit body support frame 30 includes circuit body locking pieces 31 for locking one end side of the flat circuit body 20 at two positions on both ends of the front edge side of the lower surface.

  The circuit body locking piece 31 includes a plate piece 31a extending along the lower surface from both ends of the front edge side of the lower surface of the circuit body support frame 30, and a locking pin 31b projecting on the plate piece 31a. Prepare.

  The locking pin 31b protrudes upward from the upper surface of the bent piece 31a. The locking pin 31 b is a pin (projection) that fits into the locking hole 23 formed through the bottom surface arrangement region 24 a of the flat circuit body 20.

  As shown in FIGS. 12 and 13, the circuit body support frame 30 of the present embodiment is connected by engaging the locking holes 23 of the flat circuit body 20 with the locking pins 31 b of the circuit body locking pieces 31. The flat circuit body 20 is locked so that the conductor pattern 22 of the terminal portion 21 is exposed on the lower surface of the circuit body support frame 30.

  As shown in FIGS. 6 to 10, the circuit body pressing member 40 includes a pressing member main body 41, a circuit body abutting member 42, and a resilient member 43.

  The pressing member main body 41 is fitted and mounted on the upper part of the circuit body support frame 30 so that the bottom surface 41 a faces the surface of the circuit board 10. As shown in FIG. 7, the pressing member main body 41 is disposed flush with a substantially rectangular parallelepiped main body block 44 that can be fitted and mounted on the circuit body support frame 30 from above, and a bottom surface 44 a of the main body block 44. And a pressing plate 45.

  As shown in FIGS. 6 to 8, the main body block 44 includes a contact member recess 441, a pressing plate recess 442, and a pressing plate locking hole 443.

  The contact member recess 441 is a recess that houses the circuit body contact member 42 and the elastic member 43. The contact member recess 441 has a cross section shown in FIG. 7, and is recessed in the approximate center of the width dimension W <b> 1 of the bottom surface 44 a of the main body block 44. Further, as shown in FIG. 8, the contact member recess 441 is formed so as to extend along the arrangement direction of the contact pattern 11 of the circuit board 10 (the direction of the arrow Y1 in FIG. 14). Further, as shown in FIG. 10B, the contact member recess 441 includes spring accommodating portions 47a having deep recesses at both ends in the extending direction. The spring accommodating portion 47 a is a portion that accommodates the elastic member 43.

  The presser plate recess 442 is a recess that accommodates the presser plate 45, and is provided closer to the bottom surface 44 a of the main body block 44 than the contact member recess 441. The pressing plate recess 442 accommodates the pressing plate 45 such that the lower surface 45 a of the pressing plate 45 is flush with the bottom surface 44 a of the main body block 44. Therefore, as shown in FIG. 8, the bottom surface 41a of the pressing member main body 41 of the present embodiment includes a bottom surface 44a and a bottom surface 45a that are aligned with each other. A bottom surface 41a composed of the bottom surface 44a and the lower surface 45a is a flat surface and serves as a surface for pressing the flat circuit body 20 along the surface of the circuit board 10.

  In other words, the pressing member main body 41 includes a flat bottom surface 41 a that presses the flat circuit body 20 along the surface of the circuit board 10.

  The holding plate locking hole 443 is a hole for locking the holding plate 45 mounted in the holding plate recess 442, and is provided on both opposing side portions on the lower side of the main body block 44 as shown in FIGS. Has been.

  The circuit body abutting member 42 is accommodated in the abutting member recess 441 so as to be able to advance and retreat toward the circuit board 10.

  As shown in FIG. 10, the circuit body abutting member 42 includes a plate-like portion 421 that extends along the direction in which the plurality of contact patterns 11 are arranged, and a pair that extends from both ends of the upper edge of the plate-like portion 421. The sliding shaft part 422 is provided.

  As shown in FIG. 10A, the plate-like portion 421 is provided with a pressing portion 421 a that presses the flat circuit body 20 against the circuit board 10 at the lower edge. As shown in FIG. 10A, the pressing portion 421a is set such that the length L1 in the direction in which the contact patterns 11 are arranged is smaller than the length L2 on the upper edge side. The plate-like portion 421 has abutting shoulder portions 421b on both sides of the pressing portion 421a by making the length L1 of the pressing portion 421a smaller than the length L2 on the upper edge side.

The pair of sliding shaft portions 422 are slidably inserted into the spring accommodating portion 47a.
The circuit body abutting member 42 can be advanced and retracted toward the circuit board 10 when the pair of sliding shaft portions 422 are slidably inserted into the spring accommodating portion 47a.

  The elastic member 43 is a compression coil spring, and is inserted into the spring accommodating portion 47a together with the sliding shaft portion 422 in a state of being fitted to the sliding shaft portion 422 as shown in FIG. By this, it accommodates in the spring accommodating part 47a. The elastic member 43 urges the circuit body abutting member 42 toward the lower surface side of the circuit body support frame 30 (in the direction of arrow Y2 in FIG. 10C).

  The pressing plate 45 is a plate material that is attached to the pressing plate recess 442. The pressing plate 45 includes an abutting member insertion slit 451 and a block connection protrusion 452.

  The contact member insertion slit 451 is a slit through which the pressing portion 421a of the circuit body contact member 42 is inserted. The length of the contact member insertion slit 451 is set so that the pressing portion 421a can be inserted, but the shoulder portion 421b of the circuit body contact member 42 cannot be inserted. The pressing plate 45 is attached to the pressing plate recess 442 to prevent the circuit body contact member 42 from coming off.

  The block connecting projection 452 is provided with a pressing plate locking hole of the main body block 44 when the pressing plate 45 is attached to the pressing plate recess 442 and the lower surface 45a of the pressing plate 45 is flush with the bottom surface 44a of the main body block 44. 443 engages. When the block connecting projection 452 is engaged with the pressing plate locking hole 443, the pressing plate 45 is fixed to the main body block 44, and a flat bottom surface 41 a in the pressing member main body 41 is formed.

  The circuit body pressing member 40 described above is changed from the state shown in FIG. 10A to the pair of sliding shaft portions 422 of the circuit body contact member 42 as shown in FIG. 10B. A bullet member 43 is attached. Next, as shown in FIG. 10C, the circuit body abutting member 42 to which the elastic member 43 is attached is inserted and attached to the abutting member recess 441 of the main body block 44, and then the pressing plate for the main body block 44 is used. By fitting and attaching the pressing plate 45 to the recess 442, the assembled state shown in FIGS.

  In the circuit body pressing member 40 that has been assembled, the circuit body abutting member 42 is prevented from coming off from the abutting member recess 441 of the main body block 44 by the pressing plate 45 as described above, so that the circuit board 10 It is attached to the bottom part of the pressing member main body 41 so as to be able to advance and retreat. The pressing portion 421a of the circuit body abutting member 42 is inserted through the bottom surface 41a of the pressing member main body 41 and protrudes toward the circuit board 10 side. When the assembled circuit body pressing member 40 is inserted into and mounted on the circuit body support frame 30 to which the flat circuit body 20 is attached as shown by an arrow Y3 in FIG. The pressing portion 421a protruding from 41a is pressed against the back surface of the flat circuit body 20. The pressing portion 421 a that is in contact with the flat circuit body 20 presses the back surface of the flat circuit body 20 toward the circuit board 10 in a straight strip shape that crosses the connection terminal portion 21 of the flat circuit body 20.

  As shown in FIGS. 5 and 14, the support frame receiving member 50 includes a board fixing portion 51 that is fixed to the surface of the circuit board 10, and a support frame fitting portion 52.

  In the case of the present embodiment, as shown in FIG. 14, the board fixing portion 51 is fixed to the lower case 60 that accommodates and holds the circuit board 10 from the back side thereof, and is fixed to the lower case 60. It will be in the state fixed to the surface of.

  The support frame fitting portion 52 has a rectangular tube structure in which the circuit body support frame 30 can be fitted, and is integrally formed with the substrate fixing portion 51.

  As shown in FIG. 15, the support frame fitting portion 52 has a pressing member positioning portion 521. As shown in FIG. 15, the pressing member positioning portion 521 is configured such that when the circuit body support frame 30 to which the circuit body pressing member 40 is attached is inserted into the support frame fitting portion 52, as shown in FIG. The circuit body pressing member 40 is fixed by locking the upper surface 40 b of the circuit body pressing member 40.

  More specifically, the pressing member positioning portion 521 engages the upper surface 40b of the circuit body pressing member 40 so that the pressing portion 421a of the circuit body abutting member 42 is connected to the connection terminal as shown in FIGS. The circuit body pressing member 40 is positioned so that the portion 21 is pressed against the circuit board 10.

  3 and 4, when the pressing portion 421a is in a state of pressing the connection terminal portion 21 against the circuit board 10, the bottom surface 41a that is the bottom surface of the circuit body pressing member 40 faces the flat circuit body 20. In contact with each other, the flat circuit body 20 is pressed onto the circuit board 10 in a laminated state. At this time, the circuit body locking piece 31 provided in the circuit body support frame 30 is inserted into the escape hole 12 provided in the circuit board 10, and the circuit body locking piece 31 is provided on the bottom surface 41a. Contact with the flat circuit body 20 is not hindered.

  As described above, the connection structure of the flat circuit body of the present embodiment uses the circuit body support frame 30, the circuit body pressing member 40, and the support frame receiving member 50 to connect the connection terminal portion 21 of the flat circuit body 20. The conductor pattern 22 and the contact pattern 11 are conductively connected by pressing the conductor pattern 22 to the contact pattern 11 by the circuit body pressing member 40.

  According to the configuration of the embodiment described above, the conductive connection between the conductor pattern 22 in the connection terminal portion 21 of the flat circuit body 20 and the contact pattern 11 on the circuit board 10 locks the flat circuit body 20. The circuit body pressing member 40 is fitted and mounted on the circuit body supporting frame 30, and the circuit body supporting frame 30 having been mounted on the circuit body pressing member 40 is attached to the support frame receiving member 50 fixed to the circuit board 10. This is realized by fitting and mounting and bringing the conductor pattern 22 of the flat circuit body 20 into direct contact with the contact pattern 11.

  This eliminates the need for troublesome soldering work on the circuit board 10 and simplifies the conductive connection between the plurality of conductor patterns 22 on the flat circuit body 20 and the plurality of contact patterns 11 on the circuit board 10. it can.

  Further, according to the configuration of the embodiment described above, the pressing of the conductor pattern 22 of the flat circuit body 20 against the contact pattern 11 on the circuit board 10 does not depend on the bending rigidity of the flat circuit body 20 itself. This is done by forcibly pressing the flat circuit body 20 against the circuit board 10 by the circuit body abutting member 42 incorporated in the circuit body pressing member 40.

  Therefore, even if the bending rigidity of the flat circuit body itself changes due to a specification change or the like, all of the plurality of conductor patterns 22 on the flat circuit body 20 have a stable contact pressure without being affected by the bending rigidity of the flat circuit body itself. Thus, the plurality of contact patterns 11 on the circuit board 10 can be conductively connected.

  Furthermore, according to the configuration of the embodiment described above, the connection terminal portion 21 of the flat circuit body 20 locked to the circuit body support frame 30 is provided with the circuit body support frame as shown in FIGS. It is pressed against the surface of the circuit board 10 by the bottom surface 41 a of the pressing member main body 41 mounted on the circuit board 30. Therefore, the entire connection terminal portion 21 is stacked on the surface of the circuit board 10. A part of the conductor pattern 22 in the connection terminal portion 21 laminated on the surface of the circuit board 10 is pressed against the contact pattern 11 on the circuit board 10 by the circuit body abutting member 42. The portion pressed by 42 is a straight strip that crosses the connection terminal portion 21 of the flat circuit body 20, and the pressing area is narrow. Therefore, even with a small urging force, a sufficient pressing force can be ensured per unit area.

  Therefore, it is possible to reduce the size of the connection structure by reducing the size of the elastic member 43, and to ensure stable conduction performance by securing a stable pressing force.

  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.

  For example, in the connection structure of the flat circuit body of the present invention, the support frame fitting portion 52 is the circuit body so that the pressing portion 421a of the circuit body abutting member 42 presses the connection terminal portion 21 against the circuit board 10. The mechanism for positioning the pressing member 40 is not limited to the configuration of the embodiment. For example, the pressing member positioning portion 521 provided in the support frame fitting portion 52 does not have a structure in which the circuit body pressing member 40 is directly locked, and the pressing member positioning portion 521 is connected to the circuit via the circuit body supporting frame 30. The body pressing member 40 may be positioned. In that case, a means for preventing the circuit body pressing member 40 from coming off is required in the circuit body support frame 30.

  Further, the structure for supporting the pressing member main body 41 of the circuit body pressing member 40 so as to be able to advance and retreat to the circuit board 10 side is not limited to the above embodiment, and the shape of the circuit body abutting member 42 and the elasticity to be used. The shape and the like of the member 43 can be appropriately modified and improved.

DESCRIPTION OF SYMBOLS 10 Circuit board 11 Contact pattern 20 Flat circuit body 21 Connection terminal part 22 Conductor pattern 30 Circuit body support frame 40 Circuit body press member 41 Holding member main body 41a Bottom surface 42 Circuit body contact member 43 Elastic member 50 Support frame receiving member 51 Substrate Fixed part 52 Support frame fitting part 521 Press member positioning part

Claims (2)

A plurality of conductor patterns arranged on the surface of the circuit board at the same arrangement pitch as the conductor pattern in the flat circuit body, with the conductor pattern in the connection terminal portion of the flat circuit body arranged in a plane at a predetermined arrangement pitch. It is a connection structure of a flat circuit body that is conductively connected to a contact pattern,
A circuit body support frame for locking the flat circuit body so that the conductor pattern of the connection terminal portion is exposed on the lower surface;
A pressing member main body bottom surface is fitted into the upper portion of the circuit body support frame so as to face the surface of the circuit board, the circuit body provided with a bottom portion of the pressing member main body movably toward said circuit board The flat circuit body mounted on the circuit body support frame, comprising: a contact member; and a resilient member that urges the circuit body contact member toward the lower surface of the circuit body support frame. A circuit body pressing member that presses the connection terminal portion toward the circuit board by the circuit body contact member;
A board fixing part fixed to the surface of the circuit board; and a support frame fitting part formed integrally with the board fixing part and capable of fitting the circuit body support frame. A support frame receiving member having a pressing member positioning portion for positioning the circuit body pressing member so that the circuit body contact member presses the connection terminal portion against the circuit board;
And wherein the that in the state in which the conductor pattern of the connecting terminal portion of the flat circuit body is pressed against the contact patterns by the circuit body pressing member, and the conductor pattern and the contact pattern is electrically connected connecting structure of the flat circuit body characterized by that. The pressing member body includes a flat bottom surface that holds the flat circuit body along the surface of the circuit board,
The circuit body abutting member is flat so that the back surface of the flat circuit body can be pressed in a straight strip shape across the connection terminal portion of the flat circuit body in a state where the bottom surface of the pressing member body is inserted. The flat circuit body connection structure according to claim 1, wherein the flat circuit body connection structure is in contact with a back surface of the circuit body.

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