CN103208704B - Keeper, band strap keeper and the assembly with electric connector thereof - Google Patents

Abstract

When connecting the flat conductor to the electrical connector from above, it is possible to reliably prevent damage to the circuit part of the flat conductor without thickening the reinforcing plate or providing the reinforcing plate itself, and to maintain a good connection state between the flat conductor and the electrical connector. Components, holders with flat conductors and their assemblies with electrical connectors. The holder (10) has: an upper support portion (11) capable of supporting the upper surface of the front end portion of the flat conductor (C), a lower support portion (12) capable of supporting a part of the lower surface of the front end portion, and The position corresponding to the edge of the front end part is the connection part (13) that connects the upper support part (11) and the lower support part (12), and the holder (10) uses the lower surface of the front end part of the flat conductor (C) The circuit portion exposed outside the area corresponding to the lower support portion (12) is connected to the electrical connector (2) from above in such a manner that it contacts the terminal (30) of the electrical connector (2).

Description

Holder, holder with flat conductor and assembly thereof with electrical connector

technical field

The invention relates to a holder mounted on a flat conductor, a holder with a flat conductor on which a flat conductor is installed, an assembly of the holder with a flat conductor and an electrical connector.

Background technique

As a connection form of a flat conductor and an electrical connector, the connection form of patent document 1 is known, for example. Patent Document 1 discloses a form in which a front end portion of a flat conductor extending in the front-rear direction is connected to an electrical connector from above. The lower surface of the front end portion of the flat conductor exposes the circuit portion, and the upper surface thereof has a reinforcing plate attached thereto. In addition, ear portions as engaging protrusions are formed on both side end edges of the reinforcing plate at positions corresponding to both side edges in the width direction of the flat conductor, and the ear portions protrude outward in the width direction of the flat conductor, Used for engaging with corresponding engaging holes of the electrical connector.

On the other hand, in the above-mentioned electrical connector, the two side ends of the housing in the above-mentioned width direction stand upright from the upper surface of the housing and hold a pair of locking members made of metal in such a manner that they face each other in the width direction. A space between the locking members is formed as a receiving space for receiving the front end portion of the above-mentioned flat conductor from above. The contact portion of the terminal is arranged on the upper surface of the housing of the electrical connector so as to protrude into the receiving space. In addition, the engaging hole for receiving the ear portion in a state where the flat conductor is connected to the electrical connector is formed in the locking member.

When the front end portion of the above-mentioned flat conductor is pressed into the receiving space of the above-mentioned electrical connector from above, the circuit portion of the flat conductor contacts the contact portion of the terminal of the electrical connector with contact pressure, and the ear portion of the reinforcing plate is pressed against the contact portion of the terminal of the electrical connector. The button shape enters the engaging hole of the locking member and engages with the engaging hole, whereby the connection state between the circuit portion of the flat conductor and the contact portion of the terminal can be maintained.

Patent Document 1: Japanese Patent No. 2622528

In Patent Document 1, when the operation of pressing the front end portion of the flat conductor into the receiving space of the electrical connector is performed, the reinforcement plate receives an operation force from above. Therefore, in order to prevent damage to the circuit portion of the flat conductor, it is necessary to thicken the reinforcing plate to ensure sufficient strength.

The stiffener is generally made thinner according to the requirements of reducing the height of the electrical connector. Therefore, the manufacturing device of the flat conductor with the stiffener is usually designed on the premise of a thinner stiffener. The aforementioned manufacturing apparatus manufactures a flat conductor with a reinforcement plate having an ear portion by punching a flat conductor to which a reinforcing plate material before forming an ear portion is attached together with the reinforcing plate material.

As described above, the manufacturing apparatus is designed on the premise of a thin reinforcing plate, and therefore, when the reinforcing plate is too thick, it is not possible to punch out the reinforcing plate raw material using this manufacturing apparatus. In order to manufacture flat conductors with reinforcements attached with thick reinforcements without using the above-mentioned manufacturing equipment, the following steps are required: First, before pasting the reinforcement, only the reinforcement The board material is punched out to produce a reinforcing board having ears, and then the reinforcing board is bonded to the flat conductor. However, high precision is required to accurately align the reinforcing plate with respect to the flat conductor and to attach it. Therefore, it is very difficult to manufacture the flat conductor with the reinforcing plate by the above-mentioned process.

Contents of the invention

In view of the above circumstances, the object of the present invention is to provide a flat conductor that can reliably prevent damage to the circuit portion of the flat conductor without particularly thickening the reinforcing plate or providing the reinforcing plate itself when connecting the flat conductor to the electrical connector from above, thereby realizing the flat conductor. A holder with a good connection state between a conductor and an electrical connector, a holder with a flat conductor, and an assembly of the holder with a flat conductor and an electrical connector.

According to the present invention, the above-mentioned technical problems can be solved by any one of the following holder of the first invention, holder with flat conductor of the second invention, and assembly of the holder with flat conductor of the third invention and an electrical connector .

<First Invention>

The holder of the present invention can mount the front end portion of the flat conductor and connect the front end portion of the flat conductor to an electrical connector arranged on the circuit board.

In the above holder, the present invention is characterized in that it has an upper support portion capable of supporting the upper surface of the front end portion of the flat conductor, a lower support portion capable of supporting a part of the lower surface of the front end portion, and The connection part that connects the upper support part and the lower support part at the position corresponding to the edge part of the front end part, and the circuit part exposed outside the area corresponding to the lower support part on the lower surface of the front end part of the above-mentioned flat conductor and the above-mentioned The terminal contacts of the electrical connector are connected to the electrical connector from above.

In the present invention, since the front end portion of the flat conductor is attached to the holder, the upper supporting portion of the holder is pressed from above when the front end portion of the flat conductor is connected to the electrical connector. Therefore, the upper support portion supports the flat conductor in surface contact with the upper surface of the flat conductor. As a result, the pressing force does not act only on the circuit part of the flat conductor, so even if the reinforcing plate of the flat conductor is not thickened but a thinner reinforcing plate is used or the reinforcing plate itself is not provided, the flat conductor can be prevented from being damaged. The circuit part is damaged. In addition, in the present invention, the upper support portion, the lower support portion, and the connecting portion are integrally made, the overall rigidity of the retainer is increased, and the strength of the retainer can be sufficiently ensured. Therefore, even if the pressing force is large, it can be reliably prevented from being damaged. The circuit part of the flat conductor is damaged.

More preferably, on the holder, at least one of the front edge position and the two side edge positions in the width direction of the flat conductor is formed with a locking portion for maintaining the state connected to the electrical connector. The part can be locked by the corresponding locking part of the electrical connector in the state where the holder is connected to the electrical connector from above in the direction of releasing the connection of the holder.

Since the locking portion of the holder is locked by the corresponding locking portion of the electrical connector from above in the pull-out direction of the holder, the connection state between the circuit portion of the flat conductor and the electrical connector can be maintained. In the present invention, since the locking portion to be engaged with the above-mentioned corresponding locking portion is formed on the holder, it is possible to form the locking portion more efficiently than the case where the locking portion is formed on the reinforcing plate of the flat conductor whose thickness is restricted. more firmly. Therefore, the connection state of the flat conductor and the electrical connector can be more reliably maintained.

Preferably, the connection portion connects the upper support portion and the lower support portion at least at a position corresponding to both side edges of the front end portion of the flat conductor, the connection portion has a first locking portion in the pulling direction, and when the flat conductor is received When an external force is applied to the direction in which the flat conductor is pulled out from the holder, that is, the rearward force, the first locking portion in the pulling out direction and the locking portion in the pulling out direction formed on both side edges of the flat conductor are locked. In this way, by providing the first engaging portion in the pulling-out direction on the connecting portion, it is possible to prevent the flat conductor from being detached from the holder toward the rear.

Preferably, on the upper support portion, the portion to be locked in the connection direction is formed as a hole penetrating in the vertical direction at a position corresponding to the terminal in the width direction of the flat conductor or on the lower surface side of the upper support portion. In the recessed portion of the opening, the connection direction locked portion receives from below the connection direction locking portion formed by protruding from a part of the terminal of the electrical connector when the holder is connected to the electrical connector. In the state where the holder is connected to the electrical connector, the connection direction locking part of the terminal of the electrical connector enters the connection direction locked part of the upper support part of the holder from below and is locked with the connection direction locked part. Therefore, the retainer is more difficult to disengage from the electrical connector.

Preferably, on the holder, an operation portion is formed on at least one of the front edge position and the two side edge positions in the width direction of the flat conductor, and the operation portion is used for connecting to the electrical connector. When the holder in the state is disconnected, an upward releasing force is generated. By applying an upward releasing force to the operating portion of the holder connected to the electrical connector to release the holder from the electrical connector, the connection between the flat conductor and the electrical connector can be easily released.

On the holder, preferably, a cover portion is formed on the front portion of the holder, and the cover portion covers the front portion of the terminal formed on the electrical connector from above when the holder is connected to the electrical connector. And the connection part connected with the circuit board by welding. In the state where the holder is connected to the electrical connector, the cover portion of the holder covers the connection portion of the terminal of the electrical connector from above, thereby preventing dust from adhering to the connection portion between the connection portion and the corresponding circuit portion of the circuit board. Therefore, a good connection state between the connecting portion and the corresponding circuit portion can be maintained.

<Second Invention>

The holder with a flat conductor of the present invention is characterized in that the front end portion of the flat conductor is attached to the holder of the first invention. In this way, a holder with a flat conductor having the characteristics of the holder of the first invention can be obtained.

<Third Invention>

The assembly of the holder with a flat conductor and the electrical connector of the present invention is characterized by including the holder with a flat conductor of the second invention and an electrical connector fitted to the holder.

Preferably, the terminal of the electrical connector has a protruding portion protruding upward, and a hole for receiving the protruding portion from below is formed in a position corresponding to the protruding portion of the terminal on the flat conductor so as to penetrate in the vertical direction. department. With such a structure, when the holder with flat conductor is connected to the electrical connector, the protruding portion of the terminal of the electrical connector enters the hole of the flat conductor from below.

Therefore, when the flat conductor is pulled backward, the protruding portion of the terminal is engaged with the inner wall surface of the hole of the flat conductor, so that the movement of the flat conductor to the rear is restricted, and the flat conductor can be prevented from falling out of the electrical connector. and the retainer towards the rear.

More ideally, on the two side edges of the flat conductor, there are locking parts in the pulling out direction, and the electrical connector has a second locking part in the pulling out direction. When the flat conductor receives an external force toward the rear, the second locking portion in the pull-out direction and the pull-out direction of the flat conductor are locked by the locking portion. In this way, the electrical connector is provided with the second locking portion in the pull-out direction, whereby the flat conductor can be prevented from accidentally slipping out from the electrical connector and the holder when the electrical connector is connected to the holder with the flat conductor.

(invention effect)

As mentioned above, in the present invention, the holder is installed at the front end portion of the flat conductor, and when the flat conductor is connected to the electrical connector, the upper support portion of the holder is pressed from above, so the pressing force does not It acts only on the circuit portion of the flat conductor, and can sufficiently secure the strength of the holder. Therefore, even if the reinforcing plate of the flat conductor is not thickened but a thinner reinforcing plate is used or the reinforcing plate itself is not provided, damage to the circuit part of the flat conductor can be prevented, thereby achieving good connection between the flat conductor and the electrical connector. state.

Description of drawings

Fig. 1 is a perspective view showing a holder with a flat conductor and an electrical connector according to a first embodiment, showing a state before connection.

2 is a perspective cross-sectional view of the flat conductor holder and the electrical connector of FIG. 1 , showing a cross section at the position of the terminal in the width direction of the flat conductor.

3 is a perspective view of the holder with a flat conductor in FIG. 1 before assembly, showing a state before assembly in which the front end portion of the flat conductor is separated from the holder, as seen from the lower side.

Fig. 4 shows the connection state of the holder with flat conductor and the electrical connector in Fig. 1, Fig. 4(A) is a perspective view, and Fig. 4(B) is a perspective view of IVB-IVB in Fig. 4(A), showing the flat conductor The section at the position of the terminal in the width direction, Fig. 4(C) is a partially enlarged view of Fig. 4(B), showing the state where the locking protrusion of the terminal of the electrical connector is locked with the locked hole of the holder .

FIG. 5 is a VV cross-sectional view of FIG. 4(A), showing a cross-section at the position of the upper surface of the flat conductor in the up-down direction as viewed from above.

6 is a perspective cross-sectional view of a front end portion of a holder with a flat conductor and an electrical connector according to a second embodiment, showing a cross section at a position of a terminal in the width direction of the flat conductor.

(Symbol Description)

1 with flat conductor holder 30 terminals

2 Connector 33A connection part

3 With Flat Conductor Holder 35 Locking Protrusions (Connection Direction Locking Part)

4 connectors 50 holders

10 holder 51 upper support part

11 Upper supporting part 52 Lower supporting part

13 link

12 Lower support part 55A locked hole (connecting direction locked part)

15A locked hole (connection direction locked part) 70 terminals

16A operation part 75 locking protrusion (connecting direction locking part)

17 Cover 76 Protrusion

18 Lock part C flat conductor

19 Locking concave part (the first locking part in the pulling direction) C1 circuit part

21A locking protrusion (the second locking part in the pulling out direction) C4 ear part (the locked part in the pulling out direction)

22A corresponds to the lock part C5 hole part

detailed description

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

<First Embodiment>

FIG. 1 is a perspective view showing a holder with a flat conductor and an electrical connector according to the present embodiment, showing a state before connection. 2 is a perspective cross-sectional view of the flat conductor holder and the electrical connector of FIG. 1 , showing a cross section at the position of the terminal in the width direction of the flat conductor. 3 is a perspective view of the holder with a flat conductor in FIG. 1 before assembly, showing a state before assembly in which the front end portion of the flat conductor is separated from the holder, as seen from the lower side. In addition, in this FIG. 3, the outline of the front end part of a flat conductor when it is attached to a holder is shown by the dashed-two dotted line.

As shown in FIG. 1 , the holder 1 with a flat conductor according to this embodiment is assembled by attaching the front end portion of the flat conductor C to the holder 10 . In this holder 1 with a flat conductor, the holder 10 is fitted from above with an electrical connector 2 (hereinafter simply referred to as "connector 2") disposed on a circuit board (not shown), so that the flat conductor C is connected to this connector 2 .

As shown in FIG. 1, the flat conductor C of this embodiment extends in such a manner that the insertion direction of the flat conductor C, that is, the front and rear direction (the right side in FIG. 3, there are circuit portions C1 exposed on the lower surface of the front end portion and arranged along the width direction of the flat conductors C. A reinforcing plate C2 made of an electrically insulating material such as resin for reinforcing the flat conductor C is attached to the upper surface of the front end portion. In the present invention, the reinforcing plate C2 is not essential.

In addition, as shown in FIG. 3 , a notch C3 is protrudingly formed on both side edges of the front end portion of the flat conductor C, and the direction adjacent to the notch C3 in front of the notch C3 is locked as the pull-out direction. part of the ear C4 (also refer to Figure 5). The side edge of the ear portion C4 protrudes in the width direction relative to other portions in the front-rear direction, and its rear edge serves as a locking concave portion 19 which is a first locking portion in the pull-out direction of the holder 10 described later. The surface 19A and the locking protrusion 21A, which is a second locking portion in the pull-out direction of the connector 2 to be described later, function as a locked portion that is locked in the rear. The notch C3 and the ear C4 are formed by punching the front end of the flat conductor C to which the reinforcement material before the notch C3 and the ear C4 is formed is punched together with the reinforcement material.

The holder 10 is formed by molding an electrical insulating material such as resin, and as shown in FIGS. 1 and 2 , the end portion of the flat conductor C is attached and supported. This holder 10 has: an upper support portion 11 constituting an upper plate covering the upper surface of the front end portion of the above-mentioned flat conductor C and capable of supporting the upper surface; a lower support portion 12 capable of supporting the upper surface; At the rear end position of the above-mentioned holder 10, the region of both side edges of the lower surface of the above-mentioned front end portion is supported; and a connecting portion 13, which connects the above-mentioned An upper support portion 11 and a lower support portion 12 . In the present embodiment, the above-described upper support portion 11 , lower support portion 12 , and connection portion 13 form a housing space 14 for housing the front end portion of the flat conductor C. As shown in FIG. The distance between the upper support portion 11 and the lower support portion 12 is slightly larger than the thickness dimension of the flat conductor C. As shown in FIG. In addition, at the position behind the locking recess 19 of the above-mentioned connecting portion 13, the distance between the inner surfaces of the two connecting portions 13 is larger than the distance between the side edges of the ear portions C4 of the flat conductor C, that is, The width dimension of the flat conductor C at the position of this ear part C4 is slightly small (refer FIG. 5).

As shown in FIG. 3 , a short square column portion 15 is formed on the front portion of the above-mentioned upper support portion 11, and the column portion 15 corresponds to the terminal 30 of the connector 2 described later in the width direction of the flat conductor C. The position protrudes downward. The square locked hole portion 15A of the column portion 15 extends in the vertical direction and is formed to penetrate the upper support portion 11. The locked hole portion 15A is used as a connector for connecting the flat conductor holder 1 to the connector 2. The connection direction locked portion of the locking protrusion 35 described later receives the above-mentioned terminal 30 from below (see FIG. 1 and FIG. 2 together). As shown in FIG. 2 , in the lower part of the inner wall surface of the locked hole 15A (the surface perpendicular to the front-rear direction), a locking projection 35 for locking the terminal 30 is formed protruding forward. fixed claw portion 15A-1 (refer to FIG. 4(C)). In the present embodiment, the locking portion in the connection direction is formed as the locked hole 15A, which is a hole penetrating in the vertical direction, but it may instead be formed as a concave portion with the upper opening closed and only the lower side open.

As shown in FIGS. 1 to 3 , a plate-shaped protruding portion 16 protrudes forward from the front portion of the upper support portion 11 , and the front half of the protruding portion 16 is formed as an operating portion 16A, which is used for When the holder 10 connected to the connector 2 is disconnected, an upward disconnecting force is generated. In this embodiment, the operation portion 16A is formed at the front edge of the holder 10, but an operation portion formed at the side edge of the holder 10 may be provided instead of the operation portion 16A or in addition to the operation portion 16A. .

In addition, at an intermediate position in the front-rear direction of the protruding portion 16, that is, at a position rearward of the operation portion 16A, a cover portion 17 is formed to protrude downward. In this state, the connecting portion 33A of the terminal 30 of the connector 2 is covered. As clearly shown in FIG. 3 , the cover portion 17 has a front cover portion 17A extending in the width direction of the flat conductor and side cover portions 17B extending rearward from both ends of the front cover portion 17A. As shown in a cross section perpendicular to the width direction in FIG. 2 , the front cover portion 17A is bent forward and downward in a crank shape at an intermediate position in the vertical direction.

As clearly shown in FIG. 3 , the lower support portion 12 is located outside the arrangement range of the circuit portion C1 in the width direction of the flat conductor C, and supports a part of the side edge region of the lower surface of the flat conductor C.

As shown in FIG. 1, at the side edge position of the holder 10 in the width direction, that is, the outer surface of the connecting portion 13, a locking portion 18 is formed protruding from the outer surface at approximately the center position in the front-rear direction. The portion 18 is used to engage a corresponding locking portion 22A, which will be described later, formed on the connector 2 from above. In addition, as shown in FIG. 3 , on the inner surface of the connecting portion 13 , a locking recess 19 for accommodating the ear portion C4 of the flat conductor C is recessed at a position near the front end of the connecting portion 13 . Among the inner wall surfaces of the locking recess 19, the rear inner wall surface (the surface perpendicular to the front-rear direction) serves as a catch that locks with the rear edge of the above-mentioned ear portion C4 of the flat conductor C when the flat conductor C is pulled rearward. The fixed surface 19A functions (also refer to FIG. 5 ). In addition, as shown in FIG. 5 , among the inner wall surfaces of the locking recess 19 , the front inner wall surface (the surface perpendicular to the front-rear direction) is formed at the same position as the rear end surface of the column portion 15 in the front-rear direction, and is aligned with the column. The rear end surface of the portion 15 defines the front end surface of the accommodation space for the flat conductor C together.

As shown in FIG. 3 , the band flat conductor holder 1 is assembled by inserting the front end portion of the flat conductor C from behind into the accommodation space 14 formed between the upper support portion 11 and the lower support portion 12 of the holder 10 (refer to arrow in Figure 3). In the process of inserting the flat conductor C into the accommodating space 14, before the ear portion C4 of the flat conductor C reaches the position of the locking recess 19 of the holder 10, the flat conductor C is connected to the side edge of the ear portion C4. The inner surface of the portion 13 abuts and elastically deforms in the thickness direction (vertical direction). Then, when the above-mentioned ear portion C4 reaches the position of the above-mentioned locking concave portion 19, the flat conductor C is released from the elastic deflection deformation, and the ear portion C4 is accommodated in the locking concave portion 19, thereby completing the flat conductor holder 1. Assemble.

In the holder 1 with a flat conductor, the rear edge of the ear portion C4 faces the locking surface 19A of the locking recess 19 (see FIG. 5 ). The rear edge of the flat conductor C will also be locked with the above-mentioned locking surface 19A, so that the flat conductor C will not fall off from the holder. In addition, since the upper surface and the lower surface of the flat conductor C can be supported by the upper support portion 11 and the lower support portion 12, the movement of the upper support portion 11 and the lower surface of the flat conductor C along its thickness direction (up and down direction) can be restricted. The distance above the clearance of the support portion 12.

As shown in FIG. 3, the lower support portion 12 supports the lower surface of the flat conductor C in the side edge region, that is, outside the range of the circuit portion C1 in the width direction of the flat conductor C. This circuit portion C1 is also exposed after the flat conductor holder 1 is assembled. In addition, as shown in FIG. 3 , the notch portion C3 of the flat conductor C is located between the above-mentioned locking recessed portion 19 and the lower support portion 12 of the holder 10 in the front-rear direction.

Next, the structure of the connector 2 will be described based on FIGS. 1 and 2 . The connector 2 is arranged on a circuit board (not shown) and connected to the tape flat conductor holder 1 from above, and has a housing 20 , a plurality of terminals 30 held by the housing 20 , and fixing fittings 40 . The housing 20 is formed by molding an electrically insulating material such as resin, and has a bottom wall 21 facing the circuit board; Two side walls 22 erected upward at both edge positions of the bottom wall 21; and a front wall 23 erected upward at the front edge position of the bottom wall 21 and connecting the two side walls 22 to each other.

The space enclosed by the bottom wall 21 , the side wall 22 and the front wall 23 is formed as a main receiving portion 24 for receiving the holder with flat conductor 1 from above. The main receiving portion 24 is located between the above-mentioned side wall 22 and the partition wall 27 close to the side wall 22 among the plurality of partition walls 27 that are arranged and formed along the terminal arrangement direction, and along the inner surface of the side wall 22 along the front-rear direction. The extended side space can receive the connecting portion 13 of the holder 10 . In addition, the two side walls 22 extend to a position further forward than the front wall 23 , and at the position in front of the front wall 23 , the concave portion opened toward the front between the side walls 22 accommodates the protruding portion of the terminal 30 described later. 33, and is formed as a sub receiving portion 25 that receives the cover portion 17 of the holder 10 from above.

The terminal holding portion 26 of the housing 20 for holding the terminal 30 is formed extending over the entire area in the front-rear direction of the housing 20 . As clearly shown in FIG. 2 , the terminal holding portion 26 consists of a groove portion 26A sunken from the upper surface of the bottom wall 21 and extending in the front-rear direction, and a slit hole communicating with the groove portion 26A and penetrating the front wall 23 in the front-rear direction. 26B formed.

In addition, on the upper surface of the bottom wall 21 , locking projections 21A are formed protruding upward at rear end portions near both ends in the terminal array direction as second locking portions in the pulling direction. The locking protrusion 21A can be locked with the rear edge of the ear portion C4 in the notch portion C3 of the flat conductor C when the holder 1 with the flat conductor is connected to the connector 2, and serves as a function for preventing the flat conductor C from facing backward. The disengaged locking part works (refer to FIG. 5 ).

The side wall 22 is formed with a corresponding locking portion 22A in the shape of an upward facing claw. Elastic displacement outward. As will be described later, the corresponding locking portion 22A is engaged with the locking portion 18 of the holder 10 when the holder 1 with a flat conductor is connected to the connector 2 . In addition, a fixing fitting holding hole 22B for press-fitting and holding a fixing fitting 40 described later is formed in the side wall 22 so as to extend in the front-rear direction and open toward the rear.

Partition walls 27 protruding rearward from the front wall 23 are formed on the front wall 23 between adjacent terminals 30 in the terminal arrangement direction and between the terminals 30 at both ends of the terminal arrangement range and the side walls 22 . The space between the adjacent partition walls 27 can receive the column portion 15 of the holder 10 .

As clearly shown in FIG. 2 , the terminal 30 is formed by punching while maintaining the flat surface of the metal plate, and has a shape extending in the front-rear direction as a whole. The terminal 30 has: a base 31 supported on the bottom of the groove of the terminal holder 26; an elastic arm 32 extending rearward from the base 31; extending forward from the base 31 to a position further forward than the front wall 23 The protruding part 33 of the base part 31 protrudes upward from the front half of the base part 31 and presses the insertion part 34 into the slit hole 26B from the front; Locking protrusion 35.

The elastic arm portion 32 extends in the groove portion 26A of the terminal holding portion 26 so as to rise upward from the groove bottom of the groove portion 26A toward the rear, and is elastically displaceable downward. A contact portion 32A protruding upward is formed at the rear end of the elastic arm portion 32. The contact portion 32A protrudes from the terminal holding portion 26, that is, the upper surface of the bottom wall 21, and contacts the circuit of the flat conductor C from below with a contact pressure. Part C1.

The protruding portion 33 is formed with a protruding connecting portion 33A facing downward in the sub-receiving portion 25 of the housing 20 , and the connecting portion 33A is connected to a corresponding circuit portion of the circuit board by welding.

The locking protrusion 35 has a front protrusion 35A and a rear protrusion 35B that are adjacent to each other in the front-rear direction and protrude upward in parallel. Locking hole 15A. The above-mentioned rear protrusion 35B is elastically displaceable in the front-back direction, and a locking claw portion 35B-1 (refer to FIG. 4(C)) is formed on its upper end to protrude rearward. The elastic displacement of the protrusion 35B is engaged with the engaged claw portion 15A- 1 (see FIG. 4(C) ) of the engaged hole portion 15A of the holder 10 .

On the other hand, the front protrusion 35A has a linear shape without any claw portion, and has a larger width dimension in the front-rear direction than the rear protrusion 35B. When the holder 1 with a flat conductor is connected to the connector 2, when the front protrusion 35A and the rear protrusion 35B enter the locked hole portion 15A of the holder 10 from below, the front protrusion 35A is located in the locked hole. In the portion 15A, there is a function of maintaining the locked state between the locking claw portion 35B-1 of the rear protrusion 35B and the locked claw portion 15A-1 of the locked hole portion 15A.

The terminal 30 is press-fitted into the terminal holding portion 26 of the housing 20 from the front, and is mounted on the housing 20 . In the terminal 30 mounted on the housing 20 , the upper edge of the press-fit portion 34 is supported by the upper inner wall surface of the slit hole 26B of the front wall 23 , and the lower edge of the base portion 31 is supported by the groove bottom of the terminal holding portion 26 .

The fixing fitting 40 is produced by punching while maintaining the flat surface of the metal plate, and has a shape extending in the front-rear direction as a whole. A press-fit protrusion (not shown) is formed at the front end of the fixing fitting 40 to be pressed into the fixing fitting holding hole 22B of the housing 20, and, as shown in FIGS. It extends downward and is fixed to the fixing portion 41 of the circuit board with solder. In addition, above the fixing portion 41 , a fitting portion for attaching to the fixing fitting holding hole 22B is formed as a concave portion opened forward. The fixing fitting is press-fitted into the fixing fitting holding hole 22B from the rear, and is installed on the housing 20 by the above-mentioned engaging portion being engaged with the rear end of the bottom wall of the fixing fitting holding hole 22B.

Next, the connection operation of the holder 1 with a flat conductor and the connector 2 will be described based on FIG. 1 , FIG. 4 , and FIG. 5 . Fig. 4 shows the connection state of the flat conductor holder 1 and the connector 2 in Fig. 1, Fig. 4(A) is a perspective view, and Fig. 4(B) is a perspective view of IVB-IVB in Fig. 4(A), showing the flat conductor The cross-section at the position of the terminal 30 in the width direction of C, Fig. 4(C) is a partial enlarged view of Fig. 4(B), showing that the locking protrusion of the terminal of the connector is locked with the locked hole of the holder status. In addition, FIG. 5 is a VV cross-sectional view of FIG. 4(A), and shows a cross-section at the position of the upper surface of the flat conductor C in the up-down direction as viewed from above.

First, the connecting portion 33A of the terminal 30 of the connector 2 and the fixing portion 41 of the fixing fitting 40 of the connector 2 are respectively connected by soldering to corresponding portions (not shown) of the circuit board. Then, as shown in FIG. 1 , the holder 1 with a flat conductor is positioned above the connector 2 in such a posture that the lower surface of the flat conductor C faces the terminal 30 of the connector 2 .

Next, the upper support portion 11 of the holder 10 is pressed downward, and the holder 1 with a flat conductor is moved downward to fit the holder 10 with the connector 2 as shown by the arrow in FIG. 1 . As a result, as shown in FIG. Also, the cover portion 17 is accommodated in the sub-receiving portion 25 of the connector 2 .

In the present embodiment, since the front end portion of the flat conductor C is attached to the holder 10, during the connecting operation of the flat conductor C and the connector 2, as described above, the upper support of the holder 10 is pressed from above. Section 11. Therefore, the upper support portion 11 supports the flat conductor C by making surface contact with the upper surface of the flat conductor C, and the pressing force does not act on the circuit portion C1 of the flat conductor C only. As a result, the circuit portion C1 of the flat conductor C can be prevented from being damaged by using a thinner reinforcing plate without increasing the thickness of the reinforcing plate C2 of the flat conductor C or by not providing the reinforcing plate itself.

In this embodiment, the upper supporting portion 11 , the connecting portion 13 extending downward from both side edges of the upper supporting portion 11 , and the lower connecting portion 13 extending from the lower edge of the connecting portion 13 toward the inner side in the width direction of the flat conductor C are arranged. The support portion 12 is integrally formed, and the connection portion 13 is perpendicular to the upper support portion 11 and the lower support portion 12 , so the overall rigidity of the holder 10 is increased, and the strength of the holder 10 itself is sufficiently ensured. In addition, in the state where the flat conductor C is attached to the holder 10, when the upper support portion 11 of the holder 10 receives the above-mentioned pressing force, the excessive downward deflection deformation of the upper support portion 11 is absorbed by the upper surface of the flat conductor C. limit. At this time, the flexurally deformed upper support portion 11 is in surface contact with the upper surface of the flat conductor C over a wide area, and the force received by the flat conductor C from the upper support portion 11 is distributed and transmitted to become uniform. Therefore, no local stress is generated on the flat conductor C. As a result, damage to the holder 10 and the circuit portion C1 of the flat conductor C can be reliably prevented.

As a result, as shown in FIG. 4(B), in the above-mentioned main receiving portion 24, the circuit portion C1 of the flat conductor C in a state connected to the connector 2 presses the contact portion of the elastic arm portion 32 of the terminal 30 from above. 32A, so that the elastic arm part 32 is elastically displaced downward, and the circuit part C1 contacts the above-mentioned contact part 32A with a contact pressure to be electrically connected. In addition, in the above-mentioned sub receiving portion 25, as shown in FIG. Therefore, dust can be prevented from adhering to the connecting portion between the connecting portion 33A of the terminal 30 and the corresponding circuit portion of the circuit board, thereby maintaining a good connection state between the connecting portion 33A and the corresponding circuit portion.

During the connection process, the locking portion 18 moves downward while pushing the corresponding locking portion 22A outward in the terminal arrangement direction. Then, in the connected state, the locking portion 18 is positioned below the corresponding locking portion 22A as shown in FIG. As a result, the connection state in which the contact pressure is maintained between the circuit portion C1 of the flat conductor C and the contact portion 32A of the terminal 30 of the connector 2 can be favorably maintained. In addition, in this embodiment, the above-mentioned locking portion 18 is formed on the holder 10. Therefore, compared with the conventional case where the locking portion is formed on a reinforcing plate of a flat conductor whose thickness is restricted, the locking portion can be formed more effectively. stronger. Therefore, the connection state of the flat conductor C and the connector 2 can be maintained more reliably.

In addition, during the connection, the front protrusion 35A and the rear protrusion 35B of the locking protrusion 35 of the terminal 30 enter into the locked hole portion 15A of the holder 10 from below. At this time, the rear protrusion 35B is formed by contacting the locking claw portion 35B-1 (see FIG. 4(C)) with the locked claw portion 15A-1 (see FIG. 4(C)) of the locked hole portion 15A. Elastic displacement towards the front. Then, when the locking claw portion 35B-1 reaches the top of the locked claw portion 15A-1, the rear projection 35B releases the elastic displacement state and returns to the rear, as shown in FIG. 4(C), the locking claw portion 35B- 1 can be locked with locked claw portion 15A- 1 upwardly in the direction in which the holder is pulled out. Therefore, the holder 1 with a flat conductor can be firmly attached to the connector 2 at the position of the terminal 30 in the terminal arrangement direction, thereby preventing the holder 1 with a flat conductor from being inadvertently disengaged from the connector 2 .

In addition, in the connected state, as shown in FIG. 5 , in addition to the locking between the locking surface 19A of the holder 10 and the rear edge of the ear portion C4 of the flat conductor C, the locking protrusion 21A of the housing 20 of the connector 2 also Located in the notch C3 of the flat conductor C, when the flat conductor C is subjected to an unexpected external force toward the rear (downward in FIG. 5 ), the rear edge of the ear portion C4 of the flat conductor C can engage with the above-mentioned locking protrusion 21A. Certainly. Therefore, in the above connected state, it is possible to prevent the flat conductor C from coming out inadvertently from the connector 2 and the holder 10 .

In this embodiment, the lower support part of the holder supports the side edge area of the flat conductor, but the area where the lower support part supports the flat conductor is not limited to this, except for the connection with the circuit part of the flat conductor. It can be supported in any area other than the area where the terminals of the device contact. For example, a lower support portion may be formed at a position capable of supporting the front edge region of the lower surface of the flat conductor instead of or in addition to the side edge region of the flat conductor. In addition, the lower support portion may be formed to extend across the entire width direction of the flat conductor to support the lower surface of the flat conductor over the entire area as in the second embodiment described later.

<Second Embodiment>

In the first embodiment, the terminal 30 of the connector 2 does not have a part to engage with the flat conductor C, but in this embodiment shown in FIG. This point is different from the first embodiment.

Next, this embodiment will be described based on FIG. 6 . 6 is a perspective cross-sectional view of the flat conductor-attached holder 3 and the connector 4 according to the present embodiment, showing a cross section at the position of the terminal 70 in the width direction of the flat conductor C. As shown in FIG. The structure of the flat conductor C of this embodiment is the same as that of 1st Embodiment except the hole part C5 mentioned later is formed. In FIG. 6 , with respect to the flat conductor C, the same symbols are assigned to the parts corresponding to those of the first embodiment. In addition, the structure of the holder of this embodiment is the same as that of 1st Embodiment except that a lower support part extends over the whole area of a holder in the said width direction. In FIG. 6 , for the holder, the part corresponding to the first embodiment is marked with "40", for example, the holder is designated as "holder 50". In addition, in FIG. 6, also about the housing 60, the terminal 70, and the fixing fitting 80, the code|symbol of "40" is attached|subjected to the part corresponding to 1st Embodiment.

As shown in FIG. 6, in the flat conductor C of this embodiment, in the state connected to the connector 4, the position corresponding to the protruding portion 76 of the terminal 70 of the connector 4 described later is such that the flat conductor is penetrated in the vertical direction. In the form C, a hole C5 for receiving the protrusion 76 from below is formed. In the present embodiment, the circuit portion C1 (not shown) of the flat conductor C is bent and formed around the hole C5 so as to avoid the hole C5. Therefore, even if the hole C5 is formed, it does not Any influence is exerted on the electrical conduction state of the circuit portion C1.

In the present embodiment, the lower support portion 52 of the holder 50 extends across the entire area of the holder 50 in the width direction of the flat conductor C at the rear of the holder 50, and the two connecting portions The lower ends are connected to each other. On the lower supporting portion 52, a ridge is formed at a position corresponding to a protrusion 76 of a terminal 70 described later of the connector 4 in a state connected to the connector 4, that is, a position corresponding to the hole C5 of the flat conductor C. The hole portion 52A penetrates in the vertical direction.

In the connector 4 of the present embodiment, the shape of the terminal holding portion 66 of the housing 60 and the shape of the rear half of the terminal 70 are different from the housing 20 and the terminal 30 of the connector 2 of the first embodiment. In addition, since the structure of the fixing metal fitting 80 is completely the same as the structure of the fixing metal fitting 40 of 1st Embodiment, description is abbreviate|omitted.

In this embodiment, unlike the first embodiment, the base portion 71 of the terminal 70 extends across the entire area of the terminal holding portion 66 in the front-rear direction, and the lower edge is supported over the entire area of the groove bottom of the terminal holding portion 66 . In addition, the elastic arm portion 72 extends forward in a curved manner from the upper edge at a position near the rear end of the base portion 71, and contacts the circuit of the flat conductor C with contact pressure by the contact portion 72A protruding upward at the front end of the elastic arm portion 72. part C1 (not shown). A protruding portion 76 protruding upward from the base portion 71 is formed at a position rearward of the elastic arm portion 72 . As shown in FIG. 6 , the protrusion 76 is formed so as to penetrate the hole 52A of the holder 50 from below and sufficiently reach the hole C5 of the flat conductor C in the vertical direction when the holder 3 with the flat conductor is connected to the connector 4 . size. In addition, a claw protruding slightly rearward is formed on the upper rear edge of the protruding portion 76 . As will be described later, the claw is engaged with the upper surface of the lower support portion 52 of the holder 50 in the above-mentioned connected state. In this embodiment, as shown in FIG. 6 , the contact portion 72A is clamped between the locking protrusion 75 and the protrusion 76 in the front-rear direction, so that the contact state between the contact portion 72A and the circuit portion C1 of the flat conductor C can be improved. Stablize.

In addition, the rear end portion of the base portion 71 of the terminal 70 is formed as a rear end press-fit portion 77 supported by press-fitting from the front into a rear end holding hole 66C formed in the rear end portion of the housing 60 described later. On the upper edge of the rear-end press-fit portion 77 , a press-fit protrusion for locking when press-fit into the rear-end holding hole 66C is formed so as to protrude upward. Similar to the first embodiment, the terminal 70 is mounted on the housing 60 by being press-fitted into the terminal holding portion 66 from the front of the housing 60 .

In this way, the rear end holding hole 66C into which the rear end pressing portion 77 is pressed is formed at the rear end portion of the bottom wall 61 of the housing 60 at a position corresponding to the terminal 70 in the terminal arrangement direction, and penetrates through the rear of the bottom wall 61 in the front-rear direction. Ends. In addition, on the above-mentioned bottom wall 61, in the range corresponding to the part between the position of the elastic arm part 72 base of the terminal 70 and the position of the rear end press-fit part 77 in the front-rear direction, the upper surface of the bottom wall 61 straddles the terminal. The entire area in the alignment direction is sunken to form a space so that the lower support portion 52 of the holder 50 can be received from above in the connected state of the holder with flat conductor 3 and the connector 4 .

The connecting operation of the holder 3 with the flat conductor and the connector 4 is except that the protrusion 76 of the terminal 70 of the connector 4 enters the hole 52A of the lower support part 52 of the holder 50 and the hole C5 of the flat conductor C. , are the same as those in the first embodiment. In this embodiment, the protruding portion 76 penetrates the hole 52A of the holder 50 and enters the hole C5 of the flat conductor C from below, and the claw portion of the protruding portion 76 is on the upper surface of the lower supporting portion 52 . The region near the rear edge of the above-mentioned hole portion 52A on the top is engaged with the upper surface.

In this embodiment, when an external force toward the rear inadvertently acts on the holder C with a flat conductor in the above-mentioned connected state, the protrusion 76 of the terminal 70 will contact the hole 52A of the holder 50 and the flat conductor C. Among the inner wall surfaces of the hole C5, the front inner wall surface is locked. Therefore, in the above connected state, it is possible to prevent the flat conductor C from coming out inadvertently from the connector 4 and the holder 50 .

In addition, in the present embodiment, on the front side of the connector 4, the locking claw portion 75B-1 of the rear protrusion 75B of the locking protrusion 75 of the terminal 70 is above the locked hole portion 55A of the holder 50. In addition to being locked by the locking claw portion 55A- 1 , the claw portion of the protruding portion 76 of the terminal 70 is also locked with the lower support portion 52 of the holder 50 at a position on the rear side of the connector 4 . As a result, a plurality of locking portions between the terminal 70 and the holder 50 are scattered over a wide range so as to be scattered at the position of the contact portion 72A sandwiching the terminal in the front-rear direction. Therefore, in the above-mentioned connected state, It is possible to more reliably prevent the holder 3 with a flat conductor from coming out upward from the connector 4 inadvertently. In this embodiment, claws are provided on the protruding portion 76 so as to prevent the holder 3 with a flat conductor from coming off upward, but if only the above-mentioned locking protrusion 75 can sufficiently prevent the holder 3 with a flat conductor from coming off, Then the above-mentioned claws are not necessary. When no claw is provided on the protrusion 76, the protrusion 76 is used only to prevent the flat conductor C from coming off backward. In addition, in this embodiment, the terminal 70 is locked with the holder 50 and the flat conductor C by the above-mentioned locking protrusion 75 and protrusion 76, but the shape for locking is not limited to this, as long as it can be compatible with the above-mentioned holder. 50 is engaged with the flat conductor C, and may be formed as a recess, for example.

In this embodiment, the protruding portion of the terminal is locked from behind by the lower support portion of the holder and the flat conductor, but instead, the protrusion can also be locked from behind by the upper support portion of the holder. For example, a recess may be formed on the lower surface of the upper supporting portion of the holder at a position corresponding to the protruding portion of the terminal, or a hole may be formed vertically through the upper supporting portion, and the protruding portion of the terminal may be further extended upward to Make it into the recess or hole. By employing such a structure, it is possible to more reliably prevent the flat conductor from coming off the connector and the holder toward the rear.

In the first embodiment and the second embodiment, the holder is shown without the shielding member attached thereto, but a metal shielding member may be attached to the holder instead. In this case, grounding can be achieved by bringing the shielding member into contact with the fixing fitting of the connector in the connected state of the holder with flat conductor and the connector, and connecting the fixing fitting to the ground circuit part of the circuit board. . In addition, instead of the shielding member described above, metal plating may be applied to the surface of the holder. Alternatively, the holder could be made of metal instead of an electrical insulator. In this case, it is necessary to adopt a structure that prevents the terminals of the connector from coming into contact with the holder, so as to avoid inadvertent electrical conduction between the terminals and the holder.

In the first embodiment and the second embodiment, all the terminals are made to have the same shape, but instead of providing various types of terminals with different shapes, and depending on the type of the terminal, it is also possible to lock the terminal to be locked from above by the holder. The portions are formed at different positions in the front-rear direction. In this way, the locking portions between the terminals and the holder can be spread over a wide range, so that the holder with a flat conductor can be more reliably prevented from slipping out of the connector inadvertently.

Claims (10)

1. A holder capable of mounting a front end portion of a flat conductor and used to connect the front end portion of the flat conductor to an electrical connector disposed on a circuit substrate, characterized in that, The holder has: an upper support portion capable of supporting the upper surface of the front end portion of the flat conductor; a lower support portion capable of supporting a part of the lower surface of the front end portion; The position corresponding to the edge part connects the upper support part and the lower support part, The holder is connected to the electrical connector from above, and the circuit portion exposed outside the area corresponding to the lower support portion of the lower surface of the front end portion of the flat conductor contacts the terminal of the electrical connector. 2. The holder according to claim 1, wherein, on the holder, there are formed on the front edge position and/or two side edge positions in the width direction of the flat conductor for maintaining connection with the electrical connector. The locking part of the state, the locking part can be locked by the corresponding locking part of the electrical connector from the direction of releasing the connection of the holding part, that is, upward, when the holding part is connected to the electrical connector. 3. The holder according to claim 1 or 2, wherein the connection portion connects the upper support portion and the lower support portion at least at positions corresponding to both side edges of the front end portion of the flat conductor, and the connection portion has a pull-out shape. The first locking part in the pulling direction is formed on both sides of the flat conductor when the flat conductor receives an external force toward the direction in which the flat conductor is pulled out from the holder, that is, the rear. The pull-out direction on the edge is locked by the locking part. 4. The holder according to claim 1 or 2, characterized in that, on the upper supporting portion, the position of the locked portion in the connection direction corresponding to the terminal in the width direction of the flat conductor is formed along the vertical direction. A through hole or a recess opened on the lower surface side of the upper supporting portion, and the portion to be locked in the connection direction protrudes from a part of the terminal received by the electrical connector from below when the holder is connected to the electrical connector. The formed connection direction locking part. 5. The holder according to claim 1 or 2, characterized in that, on the holder, an operating portion is formed at the front edge position and/or two side edge positions in the width direction of the flat conductor, and the operating portion For generating an upward releasing force when the holder in the state of being connected to the electrical connector is disconnected. 6. The holder according to claim 1 or 2, characterized in that, on the holder, a cover is formed on the front of the holder, and the cover is connected to the electrical connector when the holder The connection part formed on the front part of the terminal of the electrical connector and connected to the circuit board by soldering is covered from above in the state of the electric connector. 7. A holder with a flat conductor, characterized in that the front end portion of the flat conductor is attached to the holder according to any one of claims 1 to 6. 8. An assembly of a holder with a flat conductor and an electrical connector, characterized by comprising the holder with a flat conductor according to claim 7, and an electrical connector fitted into the holder. 9. The assembly of the band flat conductor holder and the electrical connector as claimed in claim 8, wherein the terminal of the electrical connector has a protrusion protruding upwards, on the flat conductor, at the contact with the terminal A hole for receiving the protrusion from below is formed at a position corresponding to the protrusion so as to penetrate in the vertical direction. 10. The assembly with flat conductor holder and electrical connector as claimed in claim 8 or 9, characterized in that, the two side edges of the flat conductor are formed with locked portions in the pulling out direction, and the electrical connector has a pulling-out direction. The second locking part in the pulling-out direction, when the electrical connector is connected to the holder with a flat conductor, when the flat conductor is subjected to an external force toward the rear, the second locking part in the pulling-out direction and the flat conductor The pull-out direction is locked by the locking part.