Connector

Abstract

To implement stable connection.SOLUTION: A connector 3 comprises a housing 5 and a plurality of terminals 6 arranged in a width direction W, each of which has a fixation part 62, an extension part 63, and a connection part 64. Each connection part 64 comprises a connection base part 65, a first arm part 66, and a second arm part 67. The first arm part 66 includes a support part 66b and a sub arm part 66c consisting of a first sub arm part 66A and a second sub arm part 66B. The first sub arm part 66A has a first contact part 66Ap; the second sub arm part 66B has a second contact part 66Bp. The second arm part 67 has a pressing part 67p that protrudes toward a predetermined position between the first contact part 66Ap and the second contact part 66Bp. Each connection part 64 is configured so that when a partner connection body 4 is inserted between the first arm part 66 and the second arm part 67, the pressing part 67p presses the partner connection body 4 and at least one of the first contact part 66Ap and the second contact part 66Bp becomes conductive with the partner connection body 4.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present disclosure relates to a connector structure. [Background technology]

[0002] Prior art connectors include one that connects a film wire to a board without a flip, and that allows the film wire to be inserted into the connector housing with a small force at first and a large force only at the end to secure the film wire in place. This prevents the contact pins on the film wire from being damaged or broken, while also allowing the film wire to be inserted into the correct position on the terminal and stably securing the film wire (see, for example, Patent Document 1). Patent Document 1 discloses a film wire connector in which multiple terminals are inserted and secured in a housing, and when a film wire is inserted into an insertion section of the housing, the contact pins of the film wire come into close contact with the contact sections of the terminals (see FIG. 12). The terminals of the connector have the contact section formed on one side, and a seesaw member that seesaws around a center portion is integrally formed with the terminal at a position opposite the contact section, and the seesaw movement of the seesaw member caused by the film wire stabilizes the secured state of the film wire. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special table 2008-504645 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the connector of Patent Document 1, the seesaw member is formed so that the pressure applying portion faces the contact portion of the terminal, and if the position of the pressure applying portion and the terminal becomes misaligned due to some influence, such as an error in terminal installation, or if a force is generated that separates the contact pin of the film wire and the contact portion of the terminal due to prying or the like, stable conduction may not be achieved.

[0005] In view of the above problems, the present disclosure aims to provide a connector that can achieve a more stable connection. [Means for solving the problem]

[0006] In order to solve the above problem, the connector according to this embodiment includes a housing having an insertion section with a predetermined width into which a mating connector having a plurality of mating terminals arranged thereon can be inserted, and a base section positioned a predetermined distance apart in the insertion direction, which is the direction in which the mating connector is inserted from the insertion section, and a plurality of terminals, each having a fixed section with one end fixed to the base, an extension section with one end connected to the fixed section and the other end extending in a reverse insertion direction, which is the opposite direction to the insertion direction, and a connection section with one end connected to the extension section and the other end extending in the reverse insertion direction, which is conductive with the mating terminal, and arranged in the width direction, which is the direction of the width of the housing. Each connection section of the plurality of terminals includes a connection base section extending from the other end of the extension section in a cross direction that intersects the insertion direction and the width direction, a first arm section extending from one end of the connection base on the cross direction side in the reverse insertion direction, and a second arm section extending from the other end of the connection base on the cross direction side in the reverse insertion direction. The first arm section extends from a predetermined position on the extension side of the first arm section. Cross directionThe connector has a sub-arm consisting of a support portion extending toward the second arm portion, a first sub-arm portion extending in the reverse insertion direction from the end portion on the extending side of the support portion, and a second sub-arm portion extending in the insertion direction from the end portion, a first contact portion protruding from the first sub-arm portion toward the second arm portion, and a second contact portion protruding from the second sub-arm portion toward the second arm portion, and the second arm portion has a pressing portion protruding toward a predetermined position between the first contact portion and the second contact portion, and each connection portion of the multiple terminals is configured so that when a mating connector is inserted between the respective first arm portion and second arm portion via the insertion portion, the pressing portion presses the mating connector, and at least one of the first contact portion and the second contact portion is conductive with the mating connector. [Effects of the Invention]

[0007] According to the connector of this embodiment, a stable connection can be achieved. [Brief explanation of the drawings]

[0008] [Figure 1] Figure 1 is an oblique view showing a printed circuit board 1 and a mating connector 4 according to this embodiment, where A is a diagram showing the state before the mating connector 4 is inserted into the connector 3, and B is a diagram showing the state after the mating connector 4 has been inserted into the connector 3. [Figure 2] Figure 2 shows a flexible wiring board 9, where A is a plan view, B is a cross-sectional view taken along the line XX, which shows an enlarged view of the vicinity of electrode 9a, C is a front view of the end seen from the electrode 9a side, and D is an enlarged view of area Y. [Figure 3] 3A is a plan view of FIG. 1A, and FIG. 3B is a cross-sectional view taken along the line ZZ. [Figure 4] FIG. 4 is an exploded perspective view of the printed circuit board 1. As shown in FIG. [Figure 5] 5A and 5B are diagrams for explaining the positional relationship between the terminal 6 and the guide 53, in which FIG. 5A is an enlarged view of an area V in FIG. 3B, and FIG. 5B is a schematic diagram seen from the insertion portion 51 side for explaining the arrangement in the width direction W. [Figure 6] FIG. 6 is a perspective view of the terminal 6. As shown in FIG. [Figure 7]Figure 7 is a diagram defining formal areas to explain the configuration of terminal 6A, where A shows the elements that make up the entire terminal 6A, B shows the elements that make up contact portion 61, C shows the elements that make up fixed portion 62, D shows the elements that make up extension portion 63, E shows the elements that make up connection portion 64, and F shows the elements that make up first arm portion 66. [Figure 8] FIG. 8 is a diagram for explaining the terminal 6A, where A is a perspective view and B is a plan view. [Figure 9] FIG. 9 is a diagram for explaining the terminal 6B, where A is a perspective view and B is a plan view. [Figure 10] FIG. 10 is a diagram showing the state in which the mating connector 4 is inserted in FIG. 5A. [Figure 11] FIG. 11 is a perspective view of a case where a plurality of terminals 6 are configured to have the same shape. [Figure 12] FIG. 12 is a diagram for explaining a conventional connector. DETAILED DESCRIPTION OF THE INVENTION

[0009] The following describes embodiments of the present disclosure. Two In the following description, components having the same functions are denoted by the same reference numerals, and redundant description will be omitted.

[0010] Figure 1 is an oblique view showing a printed circuit board 1 and a mating connector 4 according to this embodiment, where A is a diagram showing the state before the mating connector 4 is inserted into the connector 3, and B is a diagram showing the state after the mating connector 4 has been inserted into the connector 3.

[0011] (Matching connector 4) As shown in FIG. 1, the mating connector 4 according to this embodiment includes a flexible wiring board 9 and a mating insertion portion 8. FIG. 2 illustrates the flexible wiring board 9, with A being a plan view, B being a cross-sectional view taken along the line XX, and showing an enlarged view of the vicinity of the electrode 9a, C being a front view of the end portion viewed from the electrode 9a side, and D being an enlarged view of region Y. The flexible wiring board 9 according to this embodiment is a thin wiring board made of, for example, polyimide as a base material. The flexible wiring board 9 has flexibility sufficient to bend 180 degrees from the center so that both ends in the longitudinal direction are aligned, or even greater flexibility. In this embodiment, as shown in FIG. 2B, the flexible wiring board 9 includes a first layer 91A and a second layer 91B, which are integrally bonded to each other with a predetermined adhesive. However, the flexible wiring board 9 is not limited to this configuration. For example, the flexible wiring board 9 may be simply formed by stacking two layers instead of being integral. The first layer 91A has a plurality of wirings 9A arranged in the width direction of the flexible wiring board 9 (the left-right direction in FIG. 2A ), and one end of each wiring 9A is provided with an elongated electrode 9a for electrical connection to the connector 3. The wirings 9A are covered with an insulating layer 9C for insulation. The second layer 91B, like the first layer 91A, has a plurality of wirings 9B ( FIG. 2B ) arranged in the width direction of the flexible wiring board 9, and one end of each wiring 9B is provided with an elongated electrode 9b for electrical connection to the connector 3. The wirings 9B are covered with an insulating layer 9D for insulation. The plurality of electrodes 9a and 9b are arranged so as to be shifted from their opposing positions in the width direction of the flexible wiring board 9. With this arrangement, the plurality of electrodes 9a and 9b, which are terminals, are arranged in a staggered pattern across the surface on the first layer 91A side and the surface on the second layer 91B side, as shown in FIG. 2D . The electrodes 9a and 9b serve as terminals of the mating connector 4, and therefore in this embodiment, they are also referred to as "mating terminals."

[0012] Flexible wiring board 9 has electrodes that can be connected to other devices or equipment at the end opposite to electrodes 9a and 9b. These electrodes are not shown in Figures 1 to 3, and the length of flexible wiring board 9 is shown as being limited to a portion.

[0013] As shown in Fig. 1A, the mating connector 4 has a mating insertion section 8 at the end of the flexible wiring board 9 on the side of the electrodes 9a and 9b, which facilitates the insertion operation into the connector 3. The mating insertion section 8 mainly comprises an insertion guide 8a, a claw section 8b, a lever 8c, and a secondary locking mechanism 8d. A is The plan view of FIG. 1A ; B is Z 3A and 3B, the insertion guide 8a has a generally box-like hollow shape into which the flexible wiring board 9 can be inserted. Specifically, as shown in FIGS. 3A and 3B, the insertion guide 8a has side walls 8a1 and 8a2 standing on both sides of the flexible wiring board 9 and a top wall 8a1 and a bottom wall 8a2 on the top of the flexible wiring board 9. Face The insertion guide 8a has a generally box-like shape with an upper cover 8a3 that covers the upper surface of the flexible wiring board 9 and a lower cover 8a4 that covers the underside of the flexible wiring board 9. The insertion guide 8a has an opening 8a5 on the side opposite the electrodes 9a and 9b and an opening 8a6 on the side of the electrodes 9a and 9b. The side walls 8a1 and 8a2 extend further toward the electrodes 9a and 9b than the upper cover 8a3 and the lower cover 8a4 so as to cover both ends of the flexible wiring board 9 in the width direction. This gives the insertion guide 8a a hollow box-like shape, allowing the electrodes 9a and 9b to be exposed when the flexible wiring board 9 is placed inside the insertion guide 8a. The insertion guide 8a has a width (length in the left-right direction in FIG. 3A ) that is slightly shorter than the width of the opening of the insertion portion 51 of the housing 5. The heights of the side walls 8a1 and 8a2 are configured to be slightly shorter than the height of the insertion portion 51 so that the side walls 8a1 and 8a2 can be inserted into the opening of the insertion portion 51. The inserting ends of the side walls 8a1, 8a2 are tapered to facilitate insertion into the connector 3. As a result, the insertion guide 8a makes it easy to position the inserting portion 51 in the width direction and up and down direction (height direction), and makes it easy to insert the mating connecting body 4 into the connector 3.

[0014] As shown in FIG. 1, the mating insertion portion 8 has two claws 8b on its upper cover 8a3 for mating (primary locking) with locking holes 5c1 provided in the housing 5 of the connector 3. The mating claws 8b fit into the locking holes 5c1, preventing misalignment of the mating connector 3 and mating connector 4. The mating insertion portion 8 has a secondary locking mechanism 8d on its upper cover 8a3 for more secure mating of the connector 3 and mating connector 4. Assuming that the printed circuit board 1 is stationary, as shown in FIG. 3B, the mating connector 4 is moved toward the connector 3 of the printed circuit board 1 (the same direction as the insertion direction P described below) to insert the mating insertion portion 8 of the mating connector 4 into the insertion portion 51 of the connector 3, thereby mating the connector 3 and the mating connector 4. Positioning portions 8e (FIG. 1A) are provided on the side walls 8a1 and 8a2 near the ends opposite the tapered ends. The positioning portion 8e restricts the insertion movement of the flexible wiring board 9 into the connector 3 so that it does not move more toward the base portion 52 (FIG. 3B) than expected. This prevents, for example, damage to the terminals 6 in the connector 3 and the flexible wiring board 9. After the claw portion 8b is fully engaged with the locking hole 5c1, the secondary locking mechanism 8d is pushed in the insertion direction P, causing parts of the protrusions (not shown) on both ends of the secondary locking mechanism 8d to slip under the lever 8c. This prevents the lever 8c from being pushed downward (toward the lower cover 8a4). Therefore, the primary lock cannot be released, and the secondary lock (secondary lock) is completed. This movement not only functionally informs the user that the connector 3 and the mating connector 4 are securely engaged, but also visually and consciously. The upper cover 8a3 is provided with a lever 8c (FIG. 1) connected to the claw portion 8b. By moving the secondary locking mechanism 8d in the reverse insertion direction P' described later, the secondary lock is released, and the lever 8c becomes operable downward (toward the lower cover 8a4). Go to At this time, the engagement (primary locking) between the claw portion 8b and the lock hole 5c1 is released.

[0015] (Printed Circuit Board 1) Fig. 4 is an exploded perspective view of the printed circuit board 1. As shown in Fig. 4, the printed circuit board 1 mainly comprises a printed wiring board 2 and a connector 3 into which a mating connector 4 can be inserted.

[0016] (Printed wiring board 2) The printed wiring board 2 has a base material of, for example, glass epoxy resin, and has an upper surface 2a electrically connected to electrodes 9a and 9b of the mating connector 4 (hereinafter, " Continuity The plurality of electrodes 21A and 21B are arranged in the horizontal direction (the direction of width W3 in FIG. 3; hereinafter, also referred to as "width direction W") of the printed wiring board 2 so that the plurality of electrodes 21A and 21B can be aligned in a staggered manner. The plurality of electrodes 21A and 21B are arranged so as to be displaced (shifted) in the width direction W from positions where they face each other. As a result, the plurality of electrodes 21A and 21B are arranged in a staggered manner on the top surface 2a of the printed wiring board 2. The printed wiring board 2 has two holes 22 into which the fixing device 7 can be inserted via holes 54 of the connector 3.

[0017] (Connector 3) As shown in FIG. 4, the connector 3 has a housing 5 and a plurality of terminals 6 as main components.

[0018] The housing 5 is a molded product made of a thermoplastic resin such as ABS as a base material, and in this embodiment, is mounted on the upper surface 2a of the printed wiring board 2. The housing 5 in this embodiment has upstanding side walls 5a and 5b, and an upper surface 5c and a lower surface 5d that cover portions of the side walls. The housing 5 has a hollow box shape with an insertion portion 51, which is located at the front side in FIG. 4, and a base portion 52, which is located at the rear side. The insertion portion 51 is provided at one end of the housing 5 and has a rectangular opening having a width W3 (FIG. 3A) through which the mating connector 4 can be inserted. The base portion 52 has a rectangular opening having the same width W3 as the opening of the insertion portion 51, located a distance D3 from the opening of the insertion portion 51 in the direction in which the mating connector 4 is inserted (hereinafter also referred to as the "insertion direction P"). A plurality of terminals 6 are inserted into the hollow box-shaped interior of the housing 5, and the terminals 6 are press-fitted and fixed to the lower surface 5d of the housing 5. Details of the terminals 6 will be described later.

[0019] The housing 5 has two lock holes 5c1 near the center of the insertion portion 51 on the top surface 5c, into which the claws 8b of the mating insertion portion 8 are fitted. As shown in FIG. 3, the housing 5 has a plurality of guide portions 53 extending (hereinafter simply referred to as "extending") from the base portion 52 toward the insertion portion 51 (hereinafter also referred to as the "reverse insertion direction P'") within the hollow housing 5. FIG. 5 illustrates the positional relationship between the terminals 6 and the guides 53. FIG. 5A is an enlarged view of region V in FIG. 3B, and FIG. 5B is a schematic view from the insertion portion 51 side illustrating the arrangement in the width direction W. To facilitate understanding of the structure, FIG. 5A illustrates one terminal 6 and one guide portion 53. FIG. 5B illustrates two terminals 6 (terminals 6A and 6B) and three guides 53 arranged in the vertical direction. In Fig. 5B, the guide portions 53 are shown hatched to distinguish between the terminals 6 and the guides 53. As shown in Fig. 5, the guides 53 are thin, flat plates that stand upright in a horizontally elongated state. The guide portions 53 are provided with cutout portions 53A into which the mating connectors 4 can be inserted. The multiple guide portions 53 each have the same configuration, and as shown in Fig. 5B, the guide portions 53 and the terminals 6 are arranged alternately in the width direction W (left-right direction in Fig. 5B) within the housing 5.

[0020] (Terminal 6) As shown in FIG. 4, the multiple terminals 6 are arranged in the width direction W of the connector 3 and comprise multiple terminals 6A that are electrically connected to the electrodes 21A, and multiple terminals 6B that are arranged in the width direction W of the connector 3 and are electrically connected to the electrodes 21B. FIG. 6 is a perspective view of the terminals 6. In FIG. 6, only six of the multiple terminals 6 are shown, and the other terminals 6 are not shown. The connector 3 has the same number of terminals 6 as the total number of electrodes 21A and 21B. The multiple terminals 6 are arranged in the width direction W of the housing 5. , the first terminal Terminal 6A and , the second terminal The terminals 6A and 6B are arranged alternately.

[0021] (Terminal 6A) FIG. 7 is a diagram defining formal regions for explaining the configuration of terminal 6A, where A shows the elements that make up the entire terminal 6A, B shows the elements that make up contact portion 61, C shows the elements that make up fixed portion 62, D shows the elements that make up extension portion 63, E shows the elements that make up connecting portion 64, and F shows the elements that make up first arm portion 66. FIG. 8 is a diagram for explaining terminal 6A, where A is a perspective view and B is a plan view. As shown in FIG. 7A, terminal 6A is composed of contact portion 61, fixed portion 62, extension portion 63, and connecting portion 64, which are connected to each other and have a thin plate shape formed as a single unit by, for example, punching. Terminal 6A has a base material made of a conductive material such as copper.

[0022] As shown in FIG. 7B, the contact portion 61 is composed of a joint portion 61a that electrically joins with the electrode 21A on the printed wiring board 2, a leg portion 61b that extends upward from one end of the joint portion 61a in the reverse insertion direction P' (to the right in FIG. 7B) to adjust the length of the contact portion 61, and a contact end portion 61c that extends from the leg portion 61b in the reverse insertion direction P' and has a predetermined height that is longer than the width of the extension of the leg portion 61b.

[0023] As shown in Fig. 7C, the fixed portion 62 is a thin, flat plate connected to the contact portion 61 and fixes the terminal 6 to the housing 5. The fixed portion 62 is composed of a fixed base portion 62a and a fixed extension portion 62b. The fixed base portion 62a has a substantially rectangular flat plate shape, and its side in the insertion direction P (the left side in Fig. 7C) connects to the contact end portion 61c, and its lower end has a fixed end 62a1 (see Fig. 8B) that is press-fitted and fixed to the base portion 52 of the housing 5. The fixed extension portion 62b forms a substantially rectangular flat plate that extends from the upper surface 5c side of the fixed base 62a toward the upper surface 5c with a width shorter than that of the fixed base 62a.

[0024] As shown in FIG. 7D , the extension portion 63 is a thin, flat plate connected to the fixed portion 62 and adjusts the pressure on the connection portion 64 generated by the insertion of the flexible wiring board 9. The extension portion 63 has an extension base 63a and extension ends 63b, 63c provided at both ends thereof. The extension end 63b of the extension portion 63 is connected to one end of the fixed extension portion 62b of the fixed portion 62 and extends in the reverse insertion direction P'. The extension base 63a extends a predetermined length from the other end of the extension end 63b toward the lower surface 5d (downward in FIG. 7D ). The extension end 63c extends a predetermined length in the reverse insertion direction P' from the end of the extension base 63a on the lower surface 5d side. In this embodiment, the region of the extension portion 63 where the extension direction is changed by the extension base portion 63a and the extension end portion 63b is referred to as the "bent portion 63X." Furthermore, the region of the portion where the extension direction is changed by the extension base portion 63a and the extension end portion 63c is referred to as the "bent portion 63Y." The extension portion 63 is connected to the connection portion 64. When the flexible wiring board 9 of the mating connector 4 is inserted into the connection portion 64, the extension portion 63 is displaced as follows: In response to a force in the insertion direction P, the extension base portion 63a rotates around the bent portion 63X as a fulcrum (displaces clockwise in FIG. 8B), and in conjunction with this movement, the bent portion 63Y and the extension end portion 63c rotate in the insertion direction P. (Fixed part 62 The extending end 63c is displaced in a direction (the direction in which the connecting portion 64 approaches the extending end 63c) and displaced accordingly. In response to a force in a direction (the up-down direction in FIG. 8B; hereinafter also referred to as the "crossing direction I") that intersects both the insertion direction P and the width direction W at a substantially right angle, the extending end 63c rotates with the bent portion 63Y as a fulcrum. That is, when the force in the crossing direction I is on the upward side (toward the upper surface 5c), the extending end 63c is displaced counterclockwise in FIG. 8B, and when the force in the crossing direction I is on the downward side (toward the lower surface 5d), the extending end 63c is displaced clockwise. As a result, the extension end 63c is displaced in the cross direction I. At the same time, connection portion 64 is also displaced. Therefore, extension portion 63 adjusts the pressure applied to connection portion 64 by flexible wiring board 9 due to the spring force of bent portions 63X, 63Y. Bent portions 63X, 63Y can accommodate, for example, deviations in contact position and angle due to misalignment caused by the press-fit posture of terminal 6 into housing 5, or manufacturing errors of the terminals, and can reduce the insertion force required to insert flexible wiring board 9 into connection portion 64, contributing to improved reliability by preventing damage.

[0025] The connecting portion 64 has a thin plate shape with one end connected to the extending end portion 63c of the extending portion 63 and the other end extending in the reverse insertion direction P'. As will be described later, the connecting portion 64 is configured to be electrically connected to the mating connecting body 4 when the mating connecting body 4 is inserted into the connector 3.

[0026] (Connection 64) As shown in FIG. 7E, the connection part 64 is made up of a connection base part 65, a first arm part 66, and a second arm part 67.

[0027] The connecting base 65 extends in the cross direction I from the extending end 63c of the extending portion 63 to form a substantially rectangular flat plate.

[0028] As shown in FIG. 7F , the first arm 66 is composed of a main arm 66a, a support portion 66b, and a sub-arm 66c. The main arm 66a extends linearly from the upper surface 5c of the connection base 65 in the cross direction I toward the reverse insertion direction P' to form an elongated flat plate. The main arm 66a has a shape that tapers toward the extension direction. The support portion 66b extends from a predetermined position on the extension side of the main arm 66a (in FIG. 7F , this is shown as the end of the main arm 66a, but is not limited to this position) toward the second arm 67 in the cross direction I (toward the lower surface 5d), a distance that is shorter than the extension length of the first arm 66, and serves as a fulcrum for the seesaw motion of the sub-arm 66c. As shown in FIG. 7F , the sub-arm 66c is composed of a first sub-arm 66A extending from the end of the extending side of the support portion 66b in the reverse insertion direction P′, and a second sub-arm 66B extending from the end of the extending side of the support portion 66b in the insertion direction P. The extension length LA ( FIG. 8 ) of the first sub-arm 66A is shorter than the extension length LB of the second sub-arm 66B. As a result, the spring constant of the second sub-arm 66B is lower than that of the first sub-arm 66A, and when the flexible wiring board 9 is inserted, the second sub-arm 66B undergoes a larger displacement than the first sub-arm 66A. This makes it possible to reduce the insertion force required to insert the flexible wiring board 9 into the mating connector 4.

[0029] 8, the first sub-arm 66A has a first contact point 66Ap that protrudes toward the second arm 67 in the crossing direction I (toward the lower surface 5d). The first contact point 66Ap is configured to be electrically connectable to an electrode of the flexible wiring board 9 when the mating connector 4 is inserted into the connector 3. The first sub-arm 66A extends from the end on the insertion section 51 side toward the second arm 67 in the crossing direction I. Main arm 66a side The first protrusion 66Ao has a first protrusion 66Ao that protrudes toward the upper surface 5c. At least a part of the first protrusion 66Ao faces the adjacent guide 53, and they overlap in the width direction W with a predetermined gap (FIG. 5). This restricts the movement of the first protrusion 66Ao in the width direction W. The tip position of the protruding end of the first protrusion 66Ao is , main arm 66a The first arm 66 is positioned a length t1 closer to the sub-arm 66c (toward the lower surface 5d) than to the upper surface 5c in the crossing direction I (FIG. 7E). The first arm 66 has a spring property, so that it moves in the crossing direction I when the flexible wiring board 9 is inserted. When an upward force (toward the upper surface 5c) is applied to the first arm 66, the first arm 66 moves upward (toward the upper surface 5c). The main arm 66a The extension end of the first sub-arm 66A is located on the upper surface 5c side by a length t1 from the first protrusion 66Ao, and therefore functions as a clearance that allows the seesaw movement of the sub-arm 66c. The extension end of the first sub-arm 66A is inclined in the cross direction I as it moves from the first contact point 66Ap toward the reverse insertion direction P'. Main arm 66a side (upper surface 5c side) The second gradient section It has an arrangement portion 66As.

[0030] As shown in FIG. 8, the second sub-arm 66B has a second contact point 66Bp that protrudes toward the second arm 67 in the cross direction I (toward the lower surface 5d). The second contact point 66Bp is configured to be electrically connectable to an electrode of the flexible wiring board 9 when the mating connector 4 is inserted into the connector 3. The second sub-arm 66B extends from the end of the extension side (the base 52 side) to , main arm 66a(The second protrusion 66Bo has a second protrusion 66Bo that protrudes toward the upper surface 5c. At least a portion of the second protrusion 66Bo faces the adjacent guide portion 53, and the second protrusions 66Bo overlap with each other in the width direction W with a predetermined gap therebetween (FIG. 5). This restricts the movement of the second protrusion 66Bo in the width direction W. and the main arm portion 66a are Located at a predetermined distance Main arm 66a 8, a recess 66H is provided at a position facing the second protrusion 66Bo to avoid contact with the second protrusion 66Bo. The end of the extending side (base 52 side) of the second sub-arm 66B is inclined in the cross direction I as it moves from the second contact point 66Bp toward the reverse insertion direction P'. Main arm 66a side (upper surface 5c side) The third gradient section It has a sloped portion 66Bs.

[0031] The second arm 67 extends from the lower side (lower surface 5d side) of the connection base 65 in the intersecting direction I toward the reverse insertion direction P' to form an elongated flat plate. The second arm 67 has a tapered shape, extending in the reverse insertion direction P' up to a position midway in the extension direction, and then extending such that its tip tilts toward the upper surface 5c as it extends in the reverse insertion direction P'. This increases the spring constant of the second arm 67. The first arm 66 has a seesaw structure consisting of a linear main arm 66a, a support portion 66b, and a sub-arm 66c, and has a lower spring constant than the second arm 67. The end of the connection base 65 on the extension end 63c side (left side in FIG. 8B) is connected to the extension end 63c. This connection position is a predetermined position between the upper end (upper surface 5c side) and the lower end (lower surface 5d side) of the connection base 65 in the cross direction I. In Fig. 8, this position is provided in the center, but is not limited to this.

[0032] As shown in FIG. 8B, the second arm 67 has a pressing portion 67p on its extending side. The pressing portion 67p protrudes toward a predetermined position on the sub-arm 66c between the first contact point 66Ap and the second contact point 66Bp. In this embodiment, the pressing portion 67p is positioned opposite a portion (G) of the second sub-arm 66B. Preferably, the position of this G is determined so that the moments acting on the first contact point 66Ap and the second contact point 66Bp are balanced, taking into consideration the seesaw structure formed by the sub-arm 66c, the lengths of L Ap and L Bp (described later) ( FIG. 7F ), and the position of the pressing portion 67p. Due to this positional relationship, even if the flexible wiring board 9 is twisted and a force acts to separate the first contact portion 66Ap and the electrode of the flexible wiring board 9, a pressing force acts between the second contact portion 66Bp and the electrode of the flexible wiring board 9 (contact pressure is ensured), and good electrical contact is maintained between the terminal 6 and the flexible wiring board 9. As for the position of G, it can be considered to set it at a position closer to the second contact portion 66Bp than the center position between the first contact portion 66Ap and the second contact portion 66Bp. The pressing portion 67p presses the flexible wiring board 9 of the inserted mating connector 4. The insertion portion 51 side of the second arm portion 67 (extension side of second arm portion 67) The end of the inclined portion 67a is inclined in a direction away from the sub-arm portion 66c (toward the lower surface 5d) as it moves toward the insertion portion 51 (the reverse insertion direction P' side) from the pressing portion 67p. The first gradient sectionThe second arm 67 has a sloped portion 67s, at least a portion of which faces the adjacent guide portion 53 and overlaps with the adjacent guide portion 53 in the width direction W with a predetermined gap therebetween (FIG. 5). This restricts movement of the end of the second arm 67 on the insertion portion 51 side in the width direction W. The pressing portion 67p and the first contact portion 66Ap are spaced apart in the transverse direction I by a length t2, and the pressing portion 67p and the second contact portion 66Bp are spaced apart in the transverse direction I by a length t3 (FIG. 7E). In this embodiment, t2 and t3 are set to be slightly shorter than the thickness of the flexible wiring board 9 to enable insertion of the flexible wiring board 9 and to ensure an appropriate pressing force by the pressing portion 67p and an appropriate contact pressure between the first contact portion 66Ap and the second contact portion 66Bp and the flexible wiring board 9. However, t2 and t3 are not limited thereto and may be set to other lengths as long as they increase the contact pressure with the flexible wiring board 9. In this case, for example, t2 and t3 may be configured to be 0 (zero) or a negative value.

[0033] (terminal 6B) 9A and 9B are diagrams for explaining terminal 6B, where A is a perspective view and B is a plan view. As shown in Fig. 9, terminal 6B is composed of a contact portion 61B, a fixing portion 62, an extension portion 63, and a connecting portion 64B.

[0034] Contact portion 61B does not have parts corresponding to leg portion 61b and contact end portion 61c of contact portion 61 (Figure 7B), but is configured in a shape similar to joint portion 61a, and is electrically connected to electrode 21B on printed wiring board 2.

[0035] The fixed portion 62 and the extending portion 63 of the terminal 6B have the same shapes as the fixed portion 62 and the extending portion 63 of the terminal 6A.

[0036] The connecting portion 64B has the same configuration as the connecting portion 64 of the terminal 6A. However, the connecting portion 64B has the same shape as the connecting portion 64 of the terminal 6A, and is configured to be connected to the extending portion 63 of the terminal 6B in a state in which the connecting portion 64B is inverted (rotated 180 degrees) about the axis of the insertion direction P. Due to this inversion, the terminal 6B has a pressing portion 67p on the upper surface 5c side, and a first contact portion 66Ap and a second contact portion 66Bp on the lower surface 5d side.

[0037] The terminals 6 are inserted into the housing 5 and press-fitted to be fixed, thereby completing the assembly of the connector 3. The first terminal is In each terminal 6A, the first contact portions 66Ap are arranged in overlapping positions in the width direction W, the second contact portions 66Bp are arranged in overlapping positions in the width direction W, and the pressing portions 67p are arranged in overlapping positions in the width direction W. The connector 3 is The second terminal is In each terminal 6B, the first contact portions 66Ap are arranged in overlapping positions relative to the width direction W, the second contact portions 66Bp are arranged in overlapping positions relative to the width direction W, and the pressing portions 67p are arranged in overlapping positions relative to the width direction W.

[0038] (Mounting of connector 3 to printed wiring board 2) The process of mounting the connector 3 on the printed wiring board 2 to obtain the printed circuit board 1 is performed, for example, by the following steps (see FIG. 4): Apply solder paste to the electrodes 21A and 21B of the printed wiring board 2. Apply solder paste to the terminals 6A of the connector 3. and printed wiring board 2 The terminal 6B of the connector 3 is opposed to the electrode 21A. and printed wiring board 2 The electrodes 21B are then placed opposite each other, and the holes 54 of the housing 5 are aligned with the holes 22 of the printed wiring board 2. A fixing tool 7 is inserted from above (upper surface 5c) to fix the printed wiring board 2 and the connector 3 together. In this state, a heat treatment is performed using a reflow furnace or the like to complete the electrical connection between the terminals 6 and the printed wiring board 2, and the printed circuit board 1 is obtained.

[0039] (Insertion of the mating connector 4 into the connector 3) 10 is a diagram of the state in which the mating connector 4 is inserted in FIG. 5A. To facilitate understanding, FIG. 10 adds only an image of the flexible wiring board 9 to FIG. 5A. The printed circuit board 1 having the connector 3 is fixed (in a stationary state), and the mating connector 4 is inserted in the insertion direction. P The case where insertion is performed by moving the flexible wiring board 9 (as shown in FIG. 3B) will be described as an example. As described above, the height of the side wall 8a1 of the mating insertion portion 8 is configured to be slightly shorter than the height of the insertion portion 51, and the tip of the flexible wiring board 9 is inserted so as to be guided to a position just between the first contact portion 66Ap and the pressing portion 67p in the cross direction I. If any part of the tip of the flexible wiring board 9 is inserted slightly above (toward the upper surface 5c) or below (toward the lower surface 5d) the position between the first contact portion 66Ap and the pressing portion 67p in the cross direction I, , terminals 6A and 6B are Since the gradient portions (gradient portions 66As, 67s, and 66Bs) are included, Terminals 6A and 6B are The behavior is as follows. When the tip of flexible wiring board 9 comes into contact with sloped portion 66As, first arm 66 moves upward (toward upper surface 5c) if the tip of flexible wiring board 9 comes into contact with terminal 6A, and moves downward (toward lower surface 5d) if the tip of flexible wiring board 9 comes into contact with terminal 6B. At the same time, second contact portion 66Bp Is it the main arm 66a? The sub-arm 66c tilts away from the first contact point 66Ap (in other words, is in main arm 66a When flexible wiring board 9 is further inserted in the insertion direction P and the tip of flexible wiring board 9 comes into contact with sloped portion 67s, second arm 67 moves downward (toward bottom surface 5d) if the tip of flexible wiring board 9 comes into contact with terminal 6A, and moves upward (toward top surface 5c) if the tip of flexible wiring board 9 comes into contact with terminal 6B. When flexible wiring board 9 is further inserted in the insertion direction P and the tip of flexible wiring board 9 comes into contact with sloped portion 66Bs, second arm 67 moves downward (toward bottom surface 5d) if the tip of flexible wiring board 9 comes into contact with terminal 6B, and second arm 67 moves upward (toward top surface 5c) if the tip of flexible wiring board 9 comes into contact with sloped portion 66Bs. is in main arm 66a The sub-arm 66c is tilted so as to approach the first contact point 66Ap Is it the main arm 66a? (Sub-arm portion 66c is tilted so as to move away from terminal 6.) In other words, this structure makes it difficult for terminal 6 to buckle when flexible wiring board 9 is inserted into terminal 6.

[0040] 10, the tip of flexible wiring board 9 is stably inserted close to connection base 65. The mating connecting part 4 is inserted into the connector 3 to a predetermined position by the locking mechanism between locking hole 5c1 of housing 5 and claw 8b of mating insertion part 8, and by restriction of movement in the insertion direction P by positioning part 8e. By moving secondary locking mechanism 8d in the insertion direction P, secondary locking is activated, and insertion of mating connecting part 4 is completed.

[0041] In the connector 3 according to this embodiment, when the mating connector 4 is inserted between the sub-arm 66c and the second arm 67, the mating connector 4 is pressed by the pressing portion 67p. This causes the electrodes 9a and 9b to come into contact with the opposing first and second contact portions 66Ap and 66Bp, respectively, generating a reaction force to the pressing force. Focusing on one wiring and electrode, such as the wiring 9A and electrode 9a, the flexible wiring board 9 has a double-sided supported beam configuration, with one surface supported by the first and second contact portions 66Ap and 66Bp and the other surface pressed by the pressing portion 67p. In other words, because the pressing portion 67p is not positioned opposite the first or second contact portions 66Ap and 66Bp, the pressing force from the pressing portion 67p is not concentrated on one of the contact portions. This reduces the insertion force required for the flexible wiring board 9. This reduces damage to the flexible wiring board 9, and the first contact portion 66Ap and the electrode 9a ,9b and the second contact portion 66Bp. electrode 9a, Improved reliability of connection with 9b.

[0042] First arm 66 has a so-called seesaw structure with support portion 66b and sub-arm 66c, and has a lower spring constant than second arm 67. This is because, when flexible wiring board 9 is inserted, displacement toward first arm 66 (sub-arm 66c) is greater than toward second arm 67, and this seesaw structure also reduces the insertion force on flexible wiring board 9, preventing damage to flexible wiring board 9.

[0043] The adoption of a seesaw structure improves the reliability of the connection. That is, the moment generated by the pressing force applied to the first contact portion 66Ap and the length LAp (FIG. 7F) from the support portion 66b to the first contact portion 66Ap is balanced with the moment generated by the pressing force applied to the second contact portion 66Bp and the length LBp (FIG. 7F) from the support portion 66b to the second contact portion 66Bp. In this case, even if electrical continuity between one of the first contact portion 66Ap and the second contact portion 66Bp is insufficient, electrical continuity is possible through the other contact portion, which is expected to improve the reliability of the connection with the mating connector 4.

[0044] The reliability of connection to the first contact portion 66Ap and the second contact portion 66Bp can be ensured by ensuring an appropriate pressing force by the pressing portion 67p due to the structure of the second arm portion 67. Therefore, there is no need to provide a separate component for ensuring the pressing force in order to ensure connection to the electrodes 9a, 9b of the flexible wiring board 9.

[0045] The first terminal is Terminal 6A and , the second terminal By arranging the terminals 6B alternately, the direction in which the flexible wiring board 9 is pressed alternately from the upper side and the lower side when viewed from the width direction W, and good contact is maintained even when a force such as a tilt is applied to the flexible wiring board 9.

[0046] The above describes an embodiment of the present disclosure. With the above configuration, when the mating connector 4 is inserted between the first arm portion 66 and the second arm portion 67 of each of the connection portions 64 of the multiple terminals 6 via the insertion portion 51, the pressing portion 67p presses the mating connector 4, and at least one of the first contact portion 66Ap and the second contact portion 66Bp is electrically connected to the mating connector 4. This allows for stable connection.

[0047] [Variations] FIG. 11 is a perspective view of a case where multiple terminals 6 are configured with the same shape. Instead of the multiple terminals 6 configured with terminals 6A and 6B shown in FIG. 6, the connector 3 of this embodiment may use multiple terminals 6' configured with only one terminal (terminal 6B in FIG. 11) as shown in FIG. 11. In this case, the mating connection body 4 is prepared by mounting, for example, the wire 9B and electrode 9b of the wires 9A and 9B and the electrodes 9a and 9b shown in FIG. 2. That is, the mating connection body 4 is prepared by mounting a flexible wiring board (flexible wiring board 9', not shown) with wiring and electrodes provided on only one surface. Even in this case, the mating connector 4 uses the first contact portion 66Ap and the second contact portion 66Bp as fulcrums, and when pressure is applied by the pressing portion 67p, a reaction force is generated in the mating connector 4 due to a pressing force sufficient to establish electrical continuity between at least the first contact portion 66Ap and the second contact portion 66Bp, due to the moment balancing effect similar to that of the double-end supported beam described above, enabling electrical continuity with the mating connector 4. In this case, even if electrical continuity with one of the first contact portion 66Ap and the second contact portion 66Bp is insufficient, electrical continuity is possible through the other contact portion, which is expected to improve the reliability of the connection with the mating connector 4.

[0048] The above describes the embodiments and modified examples of the present disclosure. In the present embodiment, the number of terminals 6 is described using an example in which the number of terminals 6A and the number of terminals 6B are the same (23 each). However, this is merely an example, and the total number of terminals 6 may be changed depending on the wiring of the flexible wiring board 9. Furthermore, the number of terminals 6A and the number of terminals 6B do not necessarily have to be the same, and may be adjusted as appropriate depending on the layout of the flexible wiring board 9. In the present embodiment, the flexible wiring board 9 is wired approximately horizontally to the printed circuit board 1. However, if the flexible wiring board 9 is wired approximately perpendicular to the printed circuit board 1, the housing 5 may be mounted approximately perpendicular to the printed circuit board 1. It goes without saying that the printed circuit board and the mating connector described in the present embodiment can be modified as appropriate without departing from the spirit of the present disclosure. [Explanation of symbols]

[0049] 1 printed circuit board 2 printed wiring board 2a Top surface 2b Bottom surface 21A,21B Electrode 22 Hole 3 Connector 4 Mating connector 5 Housing 5a, 5b Side walls 5c Top 5c1 Lock hole 5d Bottom surface 51 Insertion part 52 Base 53 Guide 53A Notch 54 Hole 6,6A,6B Terminal 61,61B Contact part 62 Fixed part 62a Fixed base 62b Fixed extension part 62a1,62a2 End part 63 Extended portion 63a Extended base 63b,63c Extended end 63X,63Y Bent part 64,64B Connection part 65 Connection base 66 1st arm 66a Main arm 66A 1st secondary arm part 66Ap 1st contact part 66As Slope part 66Ao 1st protrusion part 66b Support part 66B 2nd secondary arm part 66Bp Second contact point 66Bs Gradient section 66Bo 2nd protrusion 66c Secondary arm 66H Recess 67 Second arm 67p Pressing section 67s Gradient section 7 Fixture 8 Mating insertion part 8a Insertion guide 8a1, 8a2 Side wall 8a3 Upper cover 8a4 Lower cover 8a5,8a6 Opening 8b Claw 8c Lever 8d Secondary locking mechanism 8e Positioning portion 9,9' Flexible wiring board 9a,9b electrode 9A,9B wiring 91A 1st layer 91B 2nd layer 9C, 9D Insulation layer D3,LA,LAp,LB,LBp,t1,t2,t3,W3 Length I Cross direction P Insertion direction P' Reverse insertion direction W Width direction

Claims

1. a housing having an insertion section having a predetermined width into which a mating connection body having a plurality of mating terminals arranged thereon can be inserted, and a base section positioned a predetermined distance apart in an insertion direction in which the mating connection body is inserted from the insertion section; a plurality of terminals arranged in a width direction of the housing, each terminal having a fixed portion having one end fixed to the base, an extension portion having one end connected to the fixed portion and the other end extending in a reverse insertion direction opposite to the insertion direction, and a connection portion having one end connected to the extension portion and the other end extending in the reverse insertion direction and capable of conducting with the mating terminal; A connector comprising: Each connection portion of the plurality of terminals is a connection base portion extending from the other end of the extension portion in a direction intersecting the insertion direction and the width direction; a first arm portion extending in the reverse insertion direction from one end of the connection base portion in the crossing direction; a second arm portion extending in the reverse insertion direction from the other end of the connection base portion in the crossing direction, The first arm portion is a support portion extending from a predetermined position on the extension side of the first arm portion toward the second arm portion in the intersecting direction; a sub-arm portion including a first sub-arm portion extending in the reverse insertion direction from an end portion of the extension side of the support portion, and a second sub-arm portion extending in the insertion direction from the end portion; a first contact portion protruding from the first sub-arm portion toward the second arm portion; a second contact portion protruding from the second sub-arm portion toward the second arm portion; and the second arm portion has a pressing portion that protrudes toward a predetermined position between the first contact portion and the second contact portion, Each connection portion of the plurality of terminals is configured such that, when the mating connector is inserted between the first arm portion and the second arm portion via the insertion portion, the pressing portion presses the mating connector, and at least one of the first contact portion and the second contact portion is electrically connected to the mating connector. connector.

2. 2. The connector of claim 1, wherein the extension portion has at least one of a first bend portion that allows at least a portion of the extension portion to be displaced in a direction toward the fixed portion, and a second bend portion that allows at least a portion of the extension portion to be displaced in the intersecting direction.

3. The connector according to claim 2 , wherein the extension portion is connected to the connection portion at a position between the one end and the other end of the connection base portion.

4. the housing has a plurality of guide portions extending from the base portion in the reverse insertion direction, the plurality of guide portions are arranged such that the guide portions and the terminals alternate in the width direction; Each of the guide portions has a notch into which the mating connector can be inserted when the mating connector is inserted between the first arm portion and the second arm portion via the insertion portion. The connector according to claim 1 .

5. The connector of claim 4, wherein the end portion of the extended side of the second arm portion has a first slope portion that moves away from the secondary arm portion as it moves toward the reverse insertion direction starting from the pressing portion, and at least a portion of the end portion overlaps with the adjacent guide portion in the width direction.

6. The connector according to claim 1 , wherein a length of the extension in the first sub-arm is shorter than a length of the extension in the second sub-arm.

7. 7. The connector according to claim 1, wherein at least a portion of the pressing portion faces any portion of the second sub-arm portion.

8. the first sub-arm further includes a first protrusion protruding from an end portion on the insertion portion side toward the first arm portion, At least a part of the first protrusion overlaps with the adjacent guide portion in the width direction, and an end portion on the protrusion side is located closer to the sub-arm portion than an end portion of the first arm portion opposite to the sub-arm portion side. The connector according to claim 4.

9. the second sub-arm further includes a second protruding portion protruding from the end portion on the extension side toward the first arm, At least a portion of the second protrusion overlaps with the adjacent guide portion in the width direction, and is positioned a predetermined distance away from the first arm portion. The connector according to claim 4.

10. The first arm portion has a recessed portion at a position facing the second protruding portion. The connector of claim 9.

11. an end portion of the first sub-arm portion on the extension side has a second slope portion that slopes toward the first arm portion as it moves from the first contact portion toward the reverse insertion direction; an end portion of the second sub-arm portion on the extension side has a third slope portion that slopes toward the first arm portion as it moves from the second contact portion toward the reverse insertion direction; The connector according to claim 1 .

12. a housing having an insertion section with a predetermined width into which a mating connector having a plurality of mating terminals arranged in a staggered pattern across one surface and the other surface can be inserted, and a base section positioned a predetermined distance apart in an insertion direction in which the mating connector is inserted from the insertion section; a plurality of terminals arranged in a width direction of the housing, each terminal having a fixed portion having one end fixed to the base, an extension portion having one end connected to the fixed portion and the other end extending in a reverse insertion direction opposite to the insertion direction, and a connection portion having one end connected to the extension portion and the other end extending in the reverse insertion direction and capable of conducting with the mating terminal; A connector comprising: the plurality of terminals are a plurality of first terminals and a plurality of second terminals alternately arranged in the width direction, Each connection portion of the plurality of first terminals is a connection base portion extending from the other end of the extension portion in a direction intersecting the insertion direction and the width direction; a first arm portion extending in the reverse insertion direction from one end of the connection base portion in the crossing direction; a second arm portion extending in the reverse insertion direction from the other end of the connection base portion in the crossing direction, The first arm portion is a support portion extending from a predetermined position on the extension side of the first arm portion toward the second arm portion in the intersecting direction; a sub-arm portion including a first sub-arm portion extending in the reverse insertion direction from an end portion of the extension side of the support portion, and a second sub-arm portion extending in the insertion direction from the end portion; a first contact portion protruding from the first sub-arm portion toward the second arm portion; a second contact portion protruding from the second sub-arm portion toward the second arm portion; and the second arm portion has a pressing portion that protrudes toward a predetermined position between the first contact portion and the second contact portion, each of the connection portions of the plurality of second terminals is connected to the extension portion of the second terminal in a state in which the connection portion has the configuration of the connection portion of the first terminal and is inverted about the insertion direction as an axis; Each connection portion of the plurality of terminals is configured such that, when the mating connector is inserted between the first arm portion and the second arm portion via the insertion portion, the pressing portion presses the mating connector, and at least one of the first contact portion and the second contact portion is electrically connected to the mating connector. connector.

13. The plurality of first terminals are the first contact portions are arranged at positions overlapping each other in the width direction, the second contact portions are arranged at positions overlapping each other in the width direction, The pressing portions are arranged at positions overlapping each other in the width direction, The plurality of second terminals are the first contact portions are arranged at positions overlapping each other in the width direction, the second contact portions are arranged at positions overlapping each other in the width direction, The pressing portions are arranged at positions overlapping each other in the width direction. The connector of claim 12.

Images