JP2001176589A - Connector for flat circuit unit and structure for connecting flat circuit unit with the connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to connect a flat circuit unit with a connector surely and easily with a connector without using excessive parts. SOLUTION: A recess 57 is formed on an upper surface of a lower housing 52 of a connector 50, and a protrusion 58 is formed on a lower surface of an upper housing 53. A terminal of a flat circuit unit 40 is placed on the upper surface of the lower housing 52, a conductor 42 of a conductor-exposed portion 43 is spanned over the recess 57, and a selvage 44 with an insulator 41 being left is engaged with an engagement protrusion 62. Under such condition, the housing 53 is covered and locked, thereby fitting the protrusion 58 into the recess 57, and while pushing the conductor 42 into the recess 57, sandwiching the conductor 42 with the recess 57 and the protrusion 58. As a result, the conductor 42 comes into contact tightly with another conductor 70 at the side of the lower housing 52.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for connecting a flat circuit body such as a flexible flat cable (FFC) or a flexible printed circuit (FPC) to a circuit or wiring on the other side, and a flat connector to the connector. The present invention relates to a connection structure of a circuit body.

[0002]

2. Description of the Related Art Generally, when electrical connection between circuits is performed using a flat circuit body, a connector is attached to a terminal portion of the flat circuit body, and this connector is connected to a mating connector. Alternatively, a connector (= corresponding to the connector) for connecting the flat circuit body to the counterpart circuit is provided, and the flat circuit body is directly connected to the connector.

FIG. 7 shows a conventional example of a structure in which a flat circuit body is connected to a connector in order to make the former connection, and FIG. 8 shows a flat circuit to a connector in order to make the latter connection. The conventional example of the structure which connected the body is shown. 7 is disclosed in Japanese Utility Model Laid-Open No. 6-17163, and FIG. 8 is disclosed in Japanese Patent Application Laid-Open No. 8-148204. In FIGS. 7 and 8, (a) shows a state in the middle of connection. (B) shows the state after connection.

[0004] In the connection structure shown in FIG.
The connecting portion 5 is formed by fixing the reinforcing plate 4 along the conductor 2 at the end of the flat circuit body 3 from which the connecting portion 5 is projected. 8, the conductor 2 is brought into close contact with the contact 9 in the connector 6.

In the connection structure shown in FIG. 8, a terminal of a flat circuit body 13 having a conductor 12 protruding from an insulator 11 is connected to
The connecting portion 15 is formed by fixing the reinforcing plate 14 along the conductor 12, the connecting portion 15 is inserted into the insertion hole 17 of the connector 16, and the conductor 1 is
2 is brought into close contact with the conductor 20 of the connector 16.

[0006]

In the above-mentioned conventional structure, the flat circuit bodies 3 and 13 are thin, and the flat circuit bodies 3 and 13 come off simply by inserting the terminal portions into the connectors 6 and 16 as they are. Are arranged on the back side of the conductors 2 and 12 and assembled to the connectors 6 and 16, and the contact 9 and the conductor 2 are
The contact pressure against zero is ensured. In addition, the contact pressure is increased by the spring 19 in the example of FIG.

As described above, in the conventional connection structure, extra members, that is, the reinforcing plates 4, are required to prevent the flat circuit bodies 3, 13 from coming off, respectively, as compared with the case where ordinary electric wires are connected. 14 and a spring 19 are used. Therefore, there is a problem that the number of parts increases, the structure becomes complicated, and the cost increases.

The present invention has been made in consideration of the above circumstances, and enables a flat circuit body to be reliably connected without using an extra part such as a reinforcing member or a spring, and to further simplify the connection. And a connection structure of a flat circuit body to the connector.

[0009]

According to a first aspect of the present invention, there is provided a connector for a flat circuit body for connecting a terminal part of a flat circuit body, wherein a lower housing having an upper surface formed as a surface on which the terminal part of the flat circuit body is mounted. An upper housing that is placed on the upper surface of the lower housing and locked with the lower housing to sandwich a terminal portion of the flat circuit body mounted on the upper surface of the lower housing. On the upper surface of the lower housing including the inner surface of the concave portion, a plurality of recesses extending in a direction crossing the concave portion and corresponding to the conductors of the flat circuit body are formed. When the conductors are arranged in parallel with each other and the upper housing is locked on the lower housing on the lower surface of the upper housing, Each of the conductors of the exposed conductor portion, which fits into the recess of the housing and is thereby bent and pushed into the recess while being bent, is arranged on the upper surface of the lower housing and the inner surface of the recess. It is characterized in that a projection is provided to be in close contact with the conductor.

In order to connect the terminal portion of the flat circuit body to the connector of the present invention, first, a conductor exposed portion is formed on the terminal portion of the flat circuit body, and the conductor exposed portion is placed on the upper surface of the lower housing. At this time, the conductors of the conductor exposed portion are placed so as to correspond to the conductors arranged on the upper surface of the lower housing, and the conductors are bridged over the recesses on the upper surface of the lower housing. Next, the upper housing is put on the lower housing and locked. Then, the convex portion on the lower surface of the upper housing fits into the concave portion of the lower housing, and the conductor of the conductor exposed portion is pushed into the concave portion while being pressed by the convex portion, and the conductor of the flat circuit body side is brought into contact with the lower housing side. Adhere to conductor. This completes the electrical connection.

Thus, the conductor on the flat circuit body side is
The convex portion of the upper housing is pressed into the concave portion of the lower housing while being forcibly bent, thereby bringing the conductor on the flat circuit body side into close contact with the conductor on the lower housing side. , Can be electrically connected to the connector.

According to a second aspect of the present invention, there is provided the connector for a flat circuit body according to the first aspect, wherein a locking portion for locking a tip of a terminal portion of the flat circuit body is provided on an upper surface of the lower housing. It is characterized by having.

According to the connector of the present invention, when the terminal of the flat circuit body is placed on the upper surface of the lower housing, the tip of the terminal is locked by the locking portion provided on the upper surface of the lower housing, so that the flat circuit body is flat. The circuit body can be temporarily fixed. Therefore, when the upper housing is next placed on the upper surface of the lower housing, and the conductor of the flat circuit body is pushed into the recess of the lower housing by the convex portion on the upper housing side, it is possible to prevent the flat circuit body from shifting or coming off. Thus, the conductor of the flat circuit body can be securely brought into close contact with the conductor on the lower housing side.

According to a third aspect of the present invention, there is provided a connector for a flat circuit body according to the first or second aspect, wherein the connector is located between the conductor of the flat circuit body in the concave portion of the lower housing and the convex portion of the upper housing. A feature is provided in which a groove and a projection that fit together are provided.

In the connector of the present invention, when the lower housing and the upper housing are locked, the grooves and the projections are fitted between the conductors, so that lateral displacement of the conductors and insulation between the conductors can be ensured. .

According to a fourth aspect of the present invention, there is provided the connector for a flat circuit body according to any one of the first to third aspects, wherein the lower housing and the upper housing are made of resin so as to be integrally connected by a hinge. It is characterized by being integrally molded.

In the connector of the present invention, since the lower housing and the upper housing are integrally formed via the hinge, they can be manufactured and handled as a single component.

According to a fifth aspect of the present invention, there is provided the connector for a flat circuit body according to the first aspect, wherein the conductor is integrated with the lower housing during resin molding of the lower housing. .

In the connector according to the present invention, the conductor on the lower housing side is integrated in advance when the lower housing is formed, so that the connector and the flat circuit body can be electrically connected without using terminals as separate members. it can.

According to a sixth aspect of the present invention, there is provided a flat circuit body having a plurality of strip-shaped conductors embedded in parallel inside a flat insulator, and the terminal of the flat circuit body is connected to the connector. In the structure, the housing of the connector is constituted by a lower housing and an upper housing, and a concave portion extending in a direction intersecting with a conductor of the flat circuit body is formed on an upper surface of the lower housing on which a terminal portion of the flat circuit body is mounted. On the upper surface of the lower housing including the inner surface of the concave portion, a conductor extending in a direction crossing the concave portion and corresponding to each conductor of the flat circuit body is disposed, while an insulator is provided at a terminal portion of the flat circuit body. Removed and exposed conductor inside to form a conductor exposed part,
Further, a lug portion formed of a non-removed portion of the insulator is formed on the distal end side, and the terminal portion of the flat circuit body is placed on the upper surface of the lower housing, so that the lug portion is provided on the upper surface of the lower housing. And each conductor of the conductor exposed portion is bridged over the concave portion, and each conductor is brought into contact with a conductor arranged on the upper surface of the lower housing. In this state, the upper surface of the upper surface of the lower housing is Cover the housing,
By locking the lower housing and the upper housing, the convex portion provided on the lower surface of the upper housing is fitted into the concave portion of the lower housing, whereby each conductor in the conductor exposed portion of the flat circuit body bridged over the concave portion is fitted. The conductors of the flat circuit body and the conductor on the lower housing side are strongly adhered to each other by pressing each of the conductors in the conductor exposed portion between the recesses and the projections while pressing the conductors into the recesses.

In the connection structure according to the present invention, the conductor of the flat circuit body is pushed into the recess of the lower housing while being forcibly bent at the projection on the upper housing side, and is formed at the tip of the flat circuit body. Since the ear is locked to the locking portion on the upper surface of the lower housing, the flat circuit body can be electrically connected to the connector while being securely prevented from coming off. In addition, since the engagement of the ears can prevent the conductor from shifting when the conductor is pushed into the recess by the projection, the connection operation can be facilitated and assured.

According to a seventh aspect of the present invention, there is provided a connection structure of the flat circuit body to the connector according to the sixth aspect, wherein the groove and the projection provided on the opposing surfaces of the lower housing and the upper housing are formed by the flat circuit body. It is characterized in that lateral displacement of the conductors is prevented by fitting each other between the conductors in the conductor exposed portions.

According to the structure of the present invention, the grooves and the protrusions are fitted to each other between the conductors of the flat circuit body to prevent the conductors from laterally shifting, so that the conductors can be reliably insulated.

[0024]

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

FIG. 1 is a perspective view of the connector of the embodiment before connection of the flat circuit body, FIG. 2 is a side view showing a state where the terminal of the flat circuit body is mounted on the housing of the connector, and FIG. FIG. 4 is a partially sectional side view showing a state where a flat circuit body is connected to the connector.

This connector 50 is for connecting a terminal portion of a flat circuit body 40 in which a plurality of strip-shaped conductors 42 are embedded in parallel inside a flat insulator 41. FIG.
As shown in FIG.
It comprises a lower housing 52 and an upper housing 53. The upper housing 53 is formed to have a size that fits into the cutout on the upper rear half of the lower housing 52, is connected to the lower housing 52 by a hinge 56 at the front end, and is integrally formed of resin as a whole.

The lower housing 52 has a hood 54 at the front end for receiving the distal end of the mating connector. On the upper surface of the portion on which the upper housing 53 is placed, the terminal of the flat circuit body 40 is placed. A flat flat-circuit-mounting surface 55 is formed, which is one step lower than the flat-circuit 40 in width. The upper housing 53 is placed on the flat circuit body mounting surface 55 of the lower housing 52 by being covered by the flat circuit body mounting surface 55 of the lower housing 52 and locked by the lower housing 52 and the lock portions 59 and 60. The terminal portion of the flat circuit body 40 is sandwiched.

The lock portions 59 and 60 are located far from the hinge 56, and near the hinge 56, an engaging convex portion 64 and an engaging concave portion 65 fitted to each other for preventing the upper housing 53 from floating. Is provided.

The flat circuit body mounting surface 55 of the lower housing 52 is provided with a trapezoidal concave portion 57 having a trapezoidal cross section extending in a direction (lateral direction) intersecting the longitudinal direction of the flat circuit body 40 mounted on the mounting surface 55. Have been. The mounting surface 5 of the lower housing 52 including the inner surface of the concave portion 57 is provided.
5 is provided with a conductor 70 extending in a direction (front-back direction) crossing the recess 57.

A plurality of conductors 70 are arranged in parallel in correspondence with the conductors 42 of the flat circuit body 40, and are integrated with the housing 51 when the housing 51 is formed.
That is, the housing 51 is insert-molded in a state where the conductor 70 is arranged at a predetermined position in the mold. One end of the conductor 70 is extended into the hood 54 to constitute a contact of the connector 50.

The lower surface of the upper housing 53 (FIG. 1)
When the upper housing 53 is put on the upper surface of the lower housing 52 and locked, the projection 58 having a trapezoidal cross section fits into the recess 57 of the lower housing 52.
Is provided.

Further, on the front side of the concave portion 57 of the flat circuit body mounting surface 55 of the lower housing 52, a locking convex portion (locking portion) 62 for locking the tip of the terminal portion of the flat circuit body 40 is provided. A projection 63 is provided on the lower surface of the upper housing 53 with a locking recess 63 into which the locking projection 62 fits. Also, a groove 68 and a protrusion 67 that fit together are provided on the top surface of the convex portion 58 of the upper housing 53 and the bottom surface of the concave portion 57 of the lower housing 52. The locking projection 62, the locking recess 63, the groove 68, and the projection 67
Are provided corresponding to positions between the conductors 42 of the flat circuit body 40 and positions outside the conductors 42 at both ends.

In order to connect the terminal portion of the flat circuit body 40 to the connector 50, first, the conductor exposed portion 43 in which the insulator 41 is removed and the internal conductor 42 is exposed is provided at the terminal portion of the flat circuit body 40. And an ear portion 44 formed of a non-removed portion of the insulator 41 is further formed on the distal end side.

Next, as shown in FIGS. 2 and 3, the terminal portion of the flat circuit body 40 thus formed is connected to the flat circuit body mounting surface 55 of the lower housing 52 of the connector 50.
To be inserted from behind. Then, the ear portion 44 at the tip of the flat circuit body 40 is hooked on the locking convex portion 62 on the upper surface of the lower housing 52, and each conductor 42 of the conductor exposed portion 43 is bridged over the concave portion 57, and each conductor 42 is It is brought into contact with the conductor 70 arranged on the upper surface of the lower housing 52.

In this state, the upper housing 53 is put on the upper surface of the lower housing 52, and the lower housing 52 and the upper housing 53 are locked by the lock portions 59 and 60. Thereby, as shown in FIG. 4, the convex portion 58 provided on the lower surface of the upper housing 53 is fitted into the concave portion 57 of the lower housing 52, and each conductor 42 of the conductor exposed portion 43 bridged over the concave portion 57 is curved. The conductor 42 of the flat circuit body 40 and the conductor 70 on the lower housing 52 side are strongly adhered by pressing the conductor 42 of the flat circuit body 40 and the conductor 42 of the conductor exposed portion 43 between the recess 57 and the projection 58 while pressing the conductor 42 into the recess 57. , A reliable electrical connection can be achieved.

When the upper housing 53 is put on and locked, the ears 44 at the tip of the flat circuit body 40 are previously locked to the locking projections 62, so that the positional displacement of the conductor 42 is prevented by the temporary fixing effect. The conductor 42 can be pushed into the recess 57 while maintaining the proper position. The lower housing 52 and the upper housing 53
Locking convex portion 62 and locking concave portion 63 provided on the opposing surface of
Since the groove 67 and the protrusion 68 fit each other, the conductor 4
2 can be prevented, and the conductors 42 can be reliably insulated.

In this connection state, the conductor 42 of the flat circuit body 40 is pushed into the recess 57 of the lower housing 52 while forcibly bending the conductor 42 by the projection 58 on the upper housing 53 side. The upper and lower ears 44 of the flat circuit body 40 are
The flattened circuit body 40 can be reliably prevented from coming off since the flattened circuit body 40 is locked to the locking projection 62.

Moreover, since it is only necessary to lock the upper housing 53 by mounting the terminal portion of the flat circuit body 40 on the lower housing 52, the connection work can be simplified, and additional parts such as auxiliary members and springs are required. Cost can be reduced by reducing the number of parts. Further, since the lower housing 52 and the upper housing 53 are integrated by the hinge 56 and the conductor 70 is also integrated at the time of molding, the lower housing 52 and the upper housing 53 can be manufactured and handled as a single component, and a separate terminal is required. Nor.

The conductor 70 may be configured by disposing a press plate after the housing 51 is formed. Alternatively, a film may be formed on the surface by plating or the like.

Further, in the above example, the case where the hood portion 54 is provided on the front side of the connector 50 and fitted to the mating connector 75 to connect the wiring and the circuit is shown. As shown in FIG. 5, the connector 50 may be formed directly on a part of a component 77 such as an auxiliary device for a vehicle, and the flat circuit body 40 may be directly connected. In such a case, components corresponding to the mating connector can be omitted.

Further, as shown in FIG.
0, the connector 50 is provided on both sides,
By conducting between the connectors 50 on both sides, the pair of flat circuit bodies 40 can be connected to each other. In this case, instead of adopting a structure of mating male and female connectors,
Flat circuit body 4 using only one relay connector 80
A connection between zeros can be made.

[0042]

As described above, according to the first aspect of the present invention, the conductor on the side of the flat circuit body is pushed into the concave portion of the lower housing while being forcibly bent by the convex portion of the upper housing. Since it can be in close contact with the conductor on the upper surface of the lower housing including the inner surface, it is possible to electrically connect to the connector while reliably preventing the flat circuit body from coming off. In particular, simply connecting the lower housing and the upper housing without using extra members such as reinforcing members and springs allows the flat circuit body to be securely connected to the connector while preventing the flat circuit body from coming off. And the cost can be reduced by reducing the number of parts.

According to the second aspect of the present invention, the flat circuit body can be temporarily fixed by locking the tip of the terminal portion of the flat circuit body to the locking portion on the upper surface of the lower housing. The conductor does not shift when the housing is covered. In addition, since the end of the terminal portion is locked, it is possible to reliably prevent displacement or removal when the conductor is pushed into the concave portion by the convex portion, and the conductor of the flat circuit body is securely connected to the conductor on the lower housing side. Can be adhered to.

According to the third aspect of the present invention, the groove and the projection are fitted between the conductors of the flat circuit body,
Lateral displacement of the conductors can be prevented, and insulation between the conductors can be ensured.

According to the fourth aspect of the present invention, since the lower housing and the upper housing are integrally formed via the hinge, they can be manufactured and handled as a single part.

According to the fifth aspect of the present invention, since the conductor on the lower housing side is integrated beforehand when the lower housing is molded, the connector and the flat circuit body are electrically connected without using a terminal as a separate member. can do. Therefore, the number of parts is reduced and the handling becomes easy because the terminals are not separately used.

According to the sixth aspect of the present invention, the conductor of the flat circuit body is pushed into the recess of the lower housing while forcibly bending the conductor at the projection on the upper housing side. Since the formed ear portion is locked to the locking portion on the upper surface of the lower housing, the flat circuit body can be electrically connected to the connector while being securely prevented from coming off. In addition, the displacement of the conductor when the conductor is pushed into the recess by the projection can be prevented by the engagement of the ears, so that the connection operation can be facilitated and assured. Therefore, the flat circuit body can be securely connected to the connector by simply locking the lower housing and the upper housing without using an extra member such as a reinforcing member or a spring. It is possible to reduce costs by reducing the number of parts.

According to the seventh aspect of the present invention, the grooves and the protrusions are fitted to each other between the conductors of the flat circuit body to prevent lateral displacement of the conductors, thereby ensuring insulation between the conductors. Can be.

[Brief description of the drawings]

FIG. 1 is a perspective view of a connector and a flat circuit body according to an embodiment of the present invention before connection.

FIG. 2 is a side view showing a state where a terminal portion of a flat circuit body is placed on an upper surface of a lower housing of the connector.

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is a partially sectional side view showing a state where a flat circuit body is connected to the connector.

FIG. 5 is a partially sectional side view showing an example in which the connector is directly mounted on a component such as an auxiliary machine for a vehicle.

FIG. 6 is a partially sectional side view showing a state in which flat circuit bodies are connected to each other using a relay connector provided with the connector at both ends.

7A and 7B are cross-sectional views illustrating an example of a conventional connection structure between a flat circuit body and a connector, wherein FIG. 7A is a diagram illustrating a state before connection, and FIG. 7B is a diagram illustrating a state after connection.

8A and 8B are cross-sectional views showing another example of a conventional connection structure between a flat circuit body and a connector, wherein FIG. 8A is a view showing a state before connection, and FIG. 8B is a view showing a state after connection. .

[Explanation of symbols]

 Reference Signs List 40 Flat circuit body 41 Insulator 42 Conductor 43 Conductor exposed part 44 Ear part 50 Connector 51 Housing 52 Lower housing 53 Upper housing 55 Flat circuit body mounting surface 56 Hinge 57 Concave part 58 Convex part 59, 60 Lock part 62 Lock convex part (Locking part) 67 Projecting part 68 Groove part 70 Conductor

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5E023 AA04 AA18 BB08 BB09 BB23 BB29 CC04 DD26 DD28 EE19 GG03 GG09 GG11 GG14 HH01 HH08 HH13 HH16 HH17 HH18 HH30 5E077 BB05 BB23 BB32 GG23 JJ23 GG23

Claims (7)

[Claims] 1. A flat circuit body connector for connecting a terminal part of a flat circuit body, comprising: a lower housing having an upper surface serving as a surface on which the terminal part of the flat circuit body is mounted; An upper housing that sandwiches a terminal portion of the flat circuit body placed on the upper surface of the lower housing by being locked with the lower housing, and a conductor exposed portion of the flat circuit body is provided on the upper surface of the lower housing. A concave portion to be bridged is formed, and a plurality of conductors extending in a direction crossing the concave portion and corresponding to conductors of the flat circuit body are arranged in parallel on the upper surface of the lower housing including the inner surface of the concave portion. When the upper housing is locked onto the lower housing on the lower surface of the upper housing, the lower housing fits into the concave portion of the lower housing. A convex portion that presses each conductor of the conductor exposed portion bridged over the concave portion into the concave portion while bending the conductor, and makes each conductor adhere to a conductor disposed on the upper surface of the lower housing and the inner surface of the concave portion. A connector for a flat circuit body, comprising: 2. The connector for a flat circuit body according to claim 1, wherein a locking portion for locking a tip of a terminal portion of the flat circuit body is provided on an upper surface of the lower housing. Connector for flat circuit. 3. The connector for a flat circuit body according to claim 1, wherein the groove is located between the conductor of the flat circuit body and fitted in the recess of the lower housing and the protrusion of the upper housing. And a connector for a flat circuit body, wherein the connector is provided with a protrusion. 4. The connector for a flat circuit body according to claim 1, wherein said lower housing and said upper housing are integrally formed of resin in a form integrally connected by a hinge. A connector for a flat circuit body. 5. The connector for a flat circuit body according to claim 1, wherein the conductor is integrated with the lower housing during resin molding of the lower housing. Connectors. 6. A connection structure of a flat circuit body to a connector, wherein a terminal portion of a flat circuit body having a plurality of strip-shaped conductors embedded in parallel inside a flat insulator is connected to the connector. Is formed of a lower housing and an upper housing, a concave portion extending in a direction intersecting with the conductor of the flat circuit body is formed on an upper surface of the lower housing on which the terminal portion of the flat circuit body is mounted, and an inner surface of the concave portion is formed. On the upper surface of the lower housing, a conductor extending in a direction crossing the recess and corresponding to each conductor of the flat circuit body is disposed. On the other hand, an insulator is removed at a terminal portion of the flat circuit body to remove the inside of the flat circuit body. A conductor-exposed portion exposing the conductor is formed, and a lug portion made of a non-removed portion of the insulator is further formed on the distal end side of the conductor-exposed portion. By mounting on the upper surface of the lower housing, the ear portion is locked by the locking portion provided on the upper surface of the lower housing, and each conductor of the conductor exposed portion is bridged over the concave portion, and each conductor is connected to the lower housing. By contacting the conductor disposed on the upper surface of the lower housing, and in this state, covering the upper housing on the upper surface of the lower housing, and locking the lower housing and the upper housing,
The convex portion provided on the lower surface of the upper housing is fitted into the concave portion of the lower housing, whereby each conductor in the conductor exposed portion of the flat circuit body bridged over the concave portion is pushed into the concave portion, and the concave portion and the convex portion are pressed. A structure for connecting a flat circuit body to a connector, characterized in that the conductors of the flat circuit body and the conductor on the lower housing side are strongly adhered to each other by sandwiching each conductor in the conductor exposed portion with the conductor. 7. The connection structure of a flat circuit body to a connector according to claim 6, wherein the groove and the protrusion provided on the opposing surface of the lower housing and the upper housing are formed by a conductor of a conductor exposed portion of the flat circuit body. A connection structure for connecting a flat circuit body to a connector, wherein the conductors are fitted to each other to prevent lateral displacement of the conductor.