JP7154683B2 - electrical connector for circuit board - Google Patents

Description

The present invention relates to electrical connectors for circuit boards.

An electrical connector for a circuit board comprises a fixed housing attached to a circuit board and a contact portion of a terminal connected to the mating connecting body so as to allow the mating connection with the mating connecting body to be displaced from a normal position. and a movable housing movable with respect to the fixed housing. An example of this is the connector disclosed in Patent Document 1.

The connector of Patent Document 1 is formed by side walls and end walls so that the shape in the direction perpendicular to the surface of the circuit board (the direction of connection with the mating connector and the height direction of the connector) forms a rectangular frame shape. It has a fixed housing (outer housing) whose longitudinal direction is the direction in which the side wall extends, and a movable housing (inner housing) arranged in the inner space of the fixed housing. A plurality of terminals are arranged across both housings in the longitudinal direction. The movable housing is located in substantially the same range as the fixed housing in the height direction, faces the fixed housing in the connector width direction (perpendicular to the longitudinal direction), and is spaced therebetween in the connector width direction. have That is, the movable housing is spaced apart from both side walls of the fixed housing in the width direction of the connector. The movable housing is formed with two upwardly opening receiving grooves extending in the longitudinal direction to receive the mating connector, and a central wall is formed between the two receiving grooves. The outer surfaces of both side walls positioned outside of the housing are opposed to the corresponding side walls of the stationary housing and are spaced apart from each other.

A terminal spans between respective side walls of the stationary housing on each side of the central wall of the movable housing.

The above terminal is formed by bending a long belt-like metal member, and by connecting an inverted U-shaped portion located on the outer side in the width direction of the connector and a U-shaped portion located on the inner side, each lateral S-shape is formed as a whole. It has an outer leg, an intermediate leg, and an inner leg, the outer leg and the intermediate leg are connected at the upper end by a bent portion to form an inverted U shape, and the intermediate leg and the inner leg are connected by the lower horizontal arm. and form a U-shape. A bent connection portion is provided from the lower end of the outer leg, and a contact portion is provided on the upper end side of the inner leg.

The outer leg is inserted from above into a fixing groove formed in the fixed housing, and the projection provided on the side edge of the outer leg bites into the wall surface of the fixing groove to hold the outer leg fixedly. . A fixed-side terminal groove for receiving the intermediate leg is formed in the inner surface of the fixed housing, and the intermediate leg is movable within the fixed-side terminal groove when it is elastically deformed.

A horizontal arm connecting the lower ends of the intermediate leg and the inner leg passes through the gap, passes through the bottom surface of the movable housing, and reaches the lower portion of the movable side terminal groove formed in the central wall of the movable housing. ing. The terminal has a vertical elastic portion bent from the horizontal arm portion and extending upward, and the vertical elastic portion is accommodated in the movable side terminal groove so as to be elastically deformable in the movable side terminal groove. ing. The movable-side terminal groove communicates with the receiving groove, and a contact portion provided at the upper end of the longitudinal elastic portion of the terminal and protruding toward the receiving groove is positioned so as to protrude into the receiving groove. This contact portion is in elastic contact with the corresponding portion of the mating connector inserted into the receiving portion.

Thus, in the connector of Patent Document 1, when the mating connecting body is inserted into the receiving groove of the movable housing, or in the connected state after insertion, if the mating connecting body deviates from the normal position, the terminals are displaced. The elastic deformation causes the movable housing to move relative to the fixed housing by the amount of displacement, thereby avoiding the influence of this displacement.

When the displacement is in the vertical direction, that is, in the insertion/extraction direction of the mating connector, the horizontal arm portion of the terminal elastically bends. , respectively absorb the deviation.

Patent No. 4969838

In the above-mentioned Patent Document 1, the horizontal arm portion of the terminal is positioned in a region near the movable housing in the width direction of the connector with respect to the movable housing that receives the mating connector, and the intermediate leg is positioned away from the movable housing in the width direction of the connector. is provided. When the displacement is in the lateral direction, the amount of movement of the movable housing due to the displacement is not significantly different regardless of the position of the intermediate leg in the width direction of the connector. However, when the displacement is in the vertical direction, the amount of elastic deflection of the horizontal arm becomes greater when the horizontal arm is positioned away from the movable housing. Therefore, it is possible to cope with a large deviation in the vertical direction. However, in Patent Literature 1, as described above, the horizontal arm portion is positioned close to the movable housing, and a large amount of elastic deflection cannot be ensured. This means that the amount of deviation that can be absorbed in the vertical direction becomes small.

SUMMARY OF THE INVENTION In view of such circumstances, the present invention provides an electrical connector for a circuit board that can ensure a large amount of movement of the movable housing against displacement in the vertical direction while maintaining the amount of movement of the movable housing against displacement in the lateral direction. The challenge is to

In the electrical connector for circuit board according to the present invention, a connection portion for connection to the circuit board is formed on one end side of the terminal in the longitudinal direction of the terminal, and a contact portion for contact with the mating connector is formed on the other end side of the terminal. a fixed housing that is attached to a circuit board via the terminals; and a fixed housing that is formed as a separate member from the fixed housing and attached to the fixed housing. and a movable housing in which the contact portions of the terminals are arranged.

In such a circuit board electrical connector, in the present invention, the terminal includes a fixed-side held portion held by a fixed housing, a movable-side held portion held by a movable housing, and a fixed-side held portion and a movable terminal. and an elastic portion provided between the side held portions, the elastic portion extending from the fixed side held portion at an upper position of the fixed housing in a direction having a component parallel to the surface of the circuit board. a lateral elastic portion extending downward from the lateral elastic portion to the circuit board, extending upward through the curved portion, and against the lateral elastic portion in the connector width direction parallel to the surface of the circuit board and perpendicular to the terminal arrangement direction; and a curved elastic portion located on the side of the movable housing.

In the present invention, the lateral elastic portion of the terminal extends from the fixed side held portion (upper position of the fixed housing) toward the movable housing in a direction having a component parallel to the surface of the circuit board. In other words, the lateral elastic portion is positioned apart from the movable housing in the width direction of the connector. Therefore, the lateral elastic portion is largely elastically deformed with respect to the vertical movement of the movable housing. As a result, the amount of deviation that can be absorbed in the vertical direction increases. Further, the curved elastic portion is located on the movable housing side with respect to the lateral elastic portion in the connector width direction, but the amount of elastic deflection of the curved elastic portion in the direction parallel to the surface of the circuit board is It is determined by the vertical dimension of the curved elastic portion, and does not change depending on the position in the width direction of the connector. Therefore, the amount of deviation that can be absorbed by the curved elastic portion in the direction parallel to the surface of the circuit board is ensured without being affected by the position of the curved elastic portion.

In the present invention, the lateral elastic portion of the terminal may be positioned vertically at the same position as the upper end of the fixed housing. By locating the lateral elastic portion in this manner, the lateral elastic portion does not protrude upward from the fixed housing, so that the risk of a finger or the like coming into contact with the lateral elastic portion from the outside is greatly reduced.

In the present invention, the fixed-side held portion of the terminal may be embedded in the fixed housing. Since the fixed-side held portion is embedded in the fixed housing in this manner, it is possible to prevent fingers from touching the fixed-side held portion from the outside, and the fixed-side held portion can be prevented from touching the fixed side held portion by the fixed housing. It can increase the holding power.

In the present invention, the movable-side held portion may be embedded in the movable housing. Since the movable-side held portion is embedded in the movable housing in this way, it is possible to prevent fingers from touching the movable-side held portion from the outside, and the movable-side held portion can be prevented by the movable housing. It can increase the holding power.

In the present invention, the contact portion of the terminal may be formed by an extension portion from the movable-side held portion, and may be positioned in contact with the wall surface of the movable housing. Since the contact portion is positioned in contact with the wall surface of the movable housing in this manner, the contact portion can sufficiently withstand the contact pressure between the mating connector and the mating connector when the connector is fitted.

In the present invention, in the terminal, the movable-side held portion may be positioned higher than the fixed-side held portion. With this configuration, the bending arm length of the curved elastic portion extending in the vertical direction can be set long, so that the amount of elastic deformation of the curved elastic portion in the direction parallel to the surface of the circuit board can be increased. can.

In the present invention, the fixed-side held portion of the terminal may be integrally formed with the fixed housing, and the movable-side held portion may be integrally formed with the movable housing. By integrally molding the terminals with the fixed housing and the movable housing in this manner, the holding force of the terminals by the fixed housing and the movable housing can be increased. Further, if the integral molding of the fixed-side held portion and the fixed housing and the integral molding of the movable-side held portion and the movable housing are performed in one step, the connector can be easily manufactured. In addition, manufacturing costs can be reduced.

According to the present invention, as described above, the lateral elastic portion of the terminal extends from the fixed-side held portion of the terminal held by the fixed housing toward the movable housing in a direction having a component parallel to the surface of the circuit board. Since the lateral elastic part is positioned apart from the movable housing positioned inside the fixed housing, the distance from the lateral elastic part to the movable housing increases, so that the movable housing is moved vertically due to deviation from the normal position, the lateral elastic portion can be largely elastically deformed, and a large allowance for deviation can be ensured. Moreover, regardless of the position of the curved elastic portion in the width direction of the connector, the amount of elastic deformation caused by displacement in the direction parallel to the surface of the circuit board does not change. With this arrangement, a predetermined amount of elastic deformation can be ensured regardless of the position of the lateral elastic portion.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an external perspective view of a connector assembly having a plug connector according to an embodiment of the present invention and a receptacle connector matingly connected thereto, Fig. 1(A) before mating connection and Fig. 1(B) The state after mating connection is shown. It is a cross-sectional perspective view showing the inside of both connectors of FIG. 1, FIG. 2(A) is before mating connection corresponding to FIG. The state after the corresponding mating connection. FIG. 2 is an external perspective view of a connector assembly in which FIG. 1(A) is turned upside down; FIG. 2 is an external perspective view showing both connectors of FIG. 1 with respective housings omitted; FIG. 5A is a cross-sectional view at the positions of signal terminals of both connectors of FIG. 1, FIG. 5A is before mating connection corresponding to FIG. This is the state after connection. Fig. 6(A) is a cross-sectional view of the positions of the holding metal fittings and the held metal fittings of both connectors of Fig. 1, Fig. 6(A) is before mating connection corresponding to Fig. 1(A), and Fig. 6(B) is Fig. 1(B). This is the state after mating connection corresponding to . 7(A) is an external perspective view showing a plug connector in the manufacturing process, FIG. 7(B) is an external perspective view showing a single reinforcing metal fitting material with a carrier, and FIG. 7(C) is an external perspective view showing FIG. ), and FIG. 7(D) is an enlarged view showing a state in which the connecting portion of FIG. 7(C) is removed. FIG. 8A is a perspective view showing a state in which a receiving side housing and a fixing metal fitting with a carrier are integrally molded in the manufacturing process of the receptacle connector; FIG. 8(B) is shown in an upside-down posture with respect to FIG. 8(A). FIG. 9A is a perspective view showing a state in which the receptacle terminal material is accommodated in the receiving side housing of FIG. 8 during the manufacturing process of the receptacle connector, and FIG. 9A is shown in a posture corresponding to FIG. , and FIG. 9(B) are shown in a posture corresponding to FIG. 8(B). FIG. 10A is a perspective view showing a state in which the terminal material of FIG. 9 and a board-side housing are integrally molded in the manufacturing process of the receptacle connector, and FIG. 10A is shown in a posture corresponding to FIG. 9A; 10(B) is shown in a posture corresponding to FIG. 9(B).

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the accompanying drawings.

1A and 1B are external perspective views of a connector assembly having a plug connector and a receptacle connector to be fitted and connected according to the present embodiment, FIG. ) shows the state after mating connection. 2A and 2B are cross-sectional perspective views showing the inside of both connectors of FIG. 1, FIG. It is a state after fitting connection corresponding to (B). FIG. 3 is an external perspective view of the connector assembly in which FIG. 1(A) is turned upside down. FIG. 4 is an external perspective view showing both connectors of FIG. 1 with their respective housings omitted. In FIG. 4, in both connectors, the signal terminal group, the power supply terminal, and various other metal fittings are shown at positions in which the intervals in the terminal arrangement direction are larger than those actually provided in the connector for convenience of explanation. is indicated.

In this embodiment, a plug connector 1 as an electrical connector for a circuit board is arranged on the mounting surface of a connector assembly circuit board (not shown), and a plug connector 1 is arranged on the mounting surface of another circuit board (not shown). A connector assembly is constituted by a receptacle connector 2 as an electrical connector for a circuit board. Both connectors are inserted/extracted in a posture in which the mounting surfaces of the circuit board and the other circuit board are parallel to each other, with the connector insertion/extraction direction being a direction perpendicular to the mounting surface (vertical direction). Specifically, as shown in FIGS. 1A and 1B, a receptacle connector 2 as a mating connector (mating connector) is fitted and connected from above the plug connector 1. there is Although the receptacle connector 2 is the mating connector of the plug connector 1 in this embodiment, it goes without saying that the plug connector 1 is the mating connector of the receptacle connector 2 .

The plug connector 1 includes a plug housing 10 extending with one direction parallel to the mounting surface of the circuit board as its longitudinal direction, and plug signal terminals 40 and a plug power supply arranged and held in the plug housing 10 with the longitudinal direction being the terminal arrangement direction. A terminal 50 (hereinafter simply referred to as "plug terminals 40, 50" when there is no need to distinguish between the two) and holding metal fittings 60 held by the plug housing 10 on both sides of the terminal arrangement range in the terminal arrangement direction. It has a contact fitting 70 and a fixing fitting 80 . The plug housing 10 comprises a fixed housing 20 attached to the circuit board via the plug terminals 40 and 50, and a movable housing 30 formed as a separate member from the fixed housing 20 and movable with respect to the fixed housing 20. have.

In this embodiment, the plug connector 1 is made symmetrical in the width direction of the connector, which is the lateral direction parallel to the surface of the circuit board and perpendicular to the longitudinal direction. Fixed housings 20 made of an electrically insulating material are provided on both sides of the lower half of the movable housing 30 in the width direction of the connector and at positions spaced from the movable housing 30 as separate members from the movable housing 30 . It has a plate shape extending in the longitudinal direction, and is formed so that the plate surface is arranged at right angles to the width direction of the connector. The fixed housings 20 on both sides of the movable housing 30 are also formed as separate members.

As seen in FIGS. 1A and 1B, the fixed housing 20 includes a plate-like intermediate portion 21 extending over a range including the movable housing 30 in the terminal arrangement direction and facing the side surface of the movable housing 30, and the It has connected portions 22 projecting outward in the terminal arrangement direction from both ends of the lower portion of the intermediate portion 21 . As can be seen in FIGS. 2A and 2B, the intermediate portion 21 integrally holds fixed-side held portions 44 and 52 which are formed at one ends of plug terminals 40 and 50 which will be described later. It forms a fixed side holding portion. In addition, the two fixed housings 20 are connected to each other at both end positions in the terminal arrangement direction by means of fixing metal fittings 80 which will be described later.

As can be seen in FIGS. 2A and 2B, the movable housing 30 is made of an electrically insulating material like the fixed housing 20, and has a fitting portion 31 forming the upper half and a lower half. and a strut portion 32 (see also FIGS. 5A and 5B).

2(A) and 2(B), the fitting portion 31 is in the shape of a rectangular tube with an open bottom, and receives the receptacle connector 2 by a peripheral wall consisting of a side wall 31A and an end wall 31B and a bottom wall 31C. A receiving portion 33 forming a concave space is formed. The fitting portion 31 holds the plug terminals 40 and 50 with the inner, upper and outer surfaces of the side wall 31A extending in the terminal arrangement direction and the bottom wall 31C. Receptacle terminals 120 and 130 provided on the receptacle connector 2 and plug terminals 40 and 50 are brought into contact with each other and electrically connected.

As can be seen in FIG. 1A, the end wall 31B is formed with an end hole opening upward and extending over substantially the entire area of the end wall 31B in the vertical direction. The end hole portion 31B-1 accommodates a later-described holding portion 62 of the holding metal fitting 60 (see also FIGS. 6A and 6B). Further, the end wall 31B has an end groove portion 31B-2 extending over substantially the entire length of the end wall 31B in the vertical direction at a position outside the end hole portion 31B-1 in the terminal arrangement direction and at the center position in the width direction of the connector. It is The end groove portion 31B-2 opens upward and penetrates in the terminal arrangement direction (the wall thickness direction of the end wall 31B). are communicated in the terminal arrangement direction.

As seen in FIG. 2A, the column portion 32 of the movable housing 30 extends downward from the bottom wall 31C of the fitting portion 31 at the center position in the width direction of the connector, and extends downward from the bottom wall 31C of the fitting portion 31 to accommodate the terminals of the receiving portion 33 in the terminal arrangement direction. A vertical central wall portion 32A extending over the entire length in the arrangement direction, and longitudinal end wall portions 32B extending in the width direction of the connector provided integrally with the vertical central wall portion 32A at both ends of the vertical central wall portion 32A in the terminal arrangement direction. have. Such a movable housing 30 is a fixed housing positioned outside the receiving portion 33 in the width direction of the connector by the vertical center wall portion 32A and the vertical end wall portions 32B of the strut portion 32 below the bottom wall 31C. 20, a side open space 34 extending laterally from the vertical central wall portion 32A is formed. As can be seen in FIG. 1A, at positions near both ends in the connector width direction at the bottom of the vertical end wall portion 32B, the end face of the vertical end wall portion 32B (with respect to the terminal arrangement direction) is located directly above the regulated portion 32C, which will be described later. A protruding portion 32B-1 is formed protruding from the plane perpendicular to the upper side. The protruding portions 32B-1 are located on both sides of an end protruding portion 63 of a holding metal fitting 60, which will be described later, and the protruding top surface thereof is positioned slightly outward from the end protruding portion 63 in the terminal arrangement direction. (See also FIG. 7(D)).

As shown in FIG. 1(A), the lower ends of the vertical end wall portions 32B are provided with regulated portions 32C extending outward in the terminal arrangement direction at positions near both ends in the width direction of the connector. The two regulated portions 32C are positioned below a connecting portion 82, which will be described later, of a fixing metal fitting 80 that connects the two fixed housings 20, and the upper surface of the regulated portions 32C is close to the lower surface of the connecting portion 82. When the movable housing 30 attempts to move upward beyond the allowable amount, the regulated portion 32C abuts on the connecting portion 82 and the movement is regulated.

The column portion 32 extends downward from the bottom wall 31C of the fitting portion 31 forming the receiving portion 33 to the vicinity of the surface of the circuit board. When received, the entire movable housing 30 is movable in the width direction of the connector, the longitudinal direction, and further in the vertical direction.

As shown in FIGS. 1A and 1B, in the plug connector 1, the plug terminals 40 and 50 are arranged in two rows, and each row has a plurality of (four in this embodiment) plug terminals. A signal terminal 40 and one plug power supply terminal 50 adjacent to the plug signal terminal 40 are arranged at regular intervals.

As shown in FIGS. 2A, 2B, 4, 5A, and 5B, the plug signal terminal 40 has a belt-like shape over its entire length, except for an inward inverted U-shaped portion 42, which will be described later. It is made by bending a thin flat metal strip of equal width in the direction of its plate thickness. The plunging inverted U-shaped portion 42 is slightly wider than the other portions. Therefore, the dimension in the direction (terminal arrangement direction) perpendicular to the plate thickness direction is the terminal width. When the plug connector 1 is viewed in the terminal arrangement direction, the plug signal terminals 40 are composed of a signal connection portion 41 formed at one end located below and a plunge reverse U formed at the other end located above. It has a substantially horizontal S-shaped signal elastic portion 43 between it and the character-shaped portion 42 . The plug signal terminals 40 are provided in pairs so as to be symmetrical in the connector width direction, and a plurality of pairs are arranged in the terminal arrangement direction.

The signal connection portion 41 extends outward in the connector width direction so as to be positioned on the upper surface of the circuit board. The plug signal terminal 40 also has a fixed-side held portion 44 that bends at a portion adjacent to the signal connection portion 41 and extends upward. The fixed-side held portion 44 is embedded in the fixed housing 20 and held by integral molding with the fixed housing 20 . That is, the fixed housing 20 forms a fixed side holding portion for the fixed side held portion 44 . The signal connection portion 41 is positioned below the bottom surface of the fixed housing 20 and extends outward in the width direction of the connector along the bottom surface.

On the other hand, the plunging inverted U-shaped portion 42 is positioned above the fixed-side held portion 44 and extends in an inverted U-shape along the inner surface, upper surface, and outer surface of the side wall 31A of the movable housing 30. It is tangential to the side, top and outer surfaces. As seen in FIG. 5(A), two vertically extending arms of the projecting inverted U-shaped portion 42, i.e., an inner arm extending along the inner surface and an outer arm extending along the outer surface. The arm portions are formed as a signal inner contact portion 42A and a signal outer contact portion 42B which contact the receptacle signal terminal 120 of the receptacle connector 2 on the plate surface exposed from the side wall 31A. 4A and 4B, a lower end portion 42A-1 of the signal inner contact portion 42A and a lower end portion (free end portion) 42B-1 of the signal outer contact portion 42B are movable. It is embedded in the bottom wall 31C of the housing 30. As shown in FIG. In this way, the thrusting inverted U-shaped part 42 is held by integral molding with the side wall 31A and the bottom wall 31C, and the thrusting inverted U-shaped part 42 as a whole forms a movable side held part.

Further, an upper curved portion 42C connecting the upper ends of the signal inner contact portion 42A and the signal outer contact portion 42B is convexly curved upward. The inner upper surface, which is the inner side, forms a surface substantially at the same level as the upper surface of the side wall 31A, and serves as a guide introduction surface for the receptacle connector 2. As shown in FIG.

In this embodiment, the projecting inverted U-shaped portion 42 extends along the inner, upper, and outer surfaces of the side wall 31A and is positioned in contact with the inner, upper, and outer surfaces. , the signal inner contact portion 42A and the signal outer contact portion 42B can sufficiently withstand the contact pressure when they come into contact with the receptacle signal terminal 120 of the receptacle connector 2 .

As can be seen in FIG. 5A, the signal elastic portion 43 has a horizontal elastic portion 43A extending straight inward in the connector width direction from the fixed side held portion 44 at the upper end position of the fixed housing 20. and a substantially U-shaped curved elastic portion 43B positioned inward of the lateral elastic portion 43A in the connector width direction, i.e., on the movable housing 30 side, and connecting the lateral elastic portion 43A and the signal inner contact portion 42A. , and has a substantially horizontal S shape as a whole. The curved elastic portion 43B is composed of an inner straight portion 43B-1 extending straight downward from the lower end portion 42A-1 of the signal inner contact portion 42A and bent at the inner end of the lateral elastic portion 43A in the connector width direction. and a lower end curved portion 43B-3 that is convexly curved downward and connects the lower ends of the inner straight portion 43B-1 and the outer straight portion 43B-2. is doing.

The lateral elastic portion 43A is elastically displaceable in the vertical direction, and elastically bends when the movable housing 30 moves in the vertical direction. Therefore, when the movable housing 30 is fitted with the receptacle connector 2 at the receiving portion 33 thereof and the movable housing 30 is vertically displaced from the normal position with respect to the fixed housing 20, the transverse elastic portion The deviation is absorbed by elastic displacement in the vertical direction of 43A, and so-called floating is achieved. In addition, in the present embodiment, the horizontal elastic portion 43A is located at the same position as the upper end of the fixed housing 20 in the vertical direction and does not protrude upward from the fixed housing 20, so there is a risk that a finger or the like may touch the horizontal elastic portion 43A from the outside. can be very low.

In the present embodiment, the lateral elastic portion 43A extends parallel to the mounting surface of the circuit board, but it is not essential that the lateral elastic portion 43A extends parallel to the mounting surface. may be That is, the lateral elastic portion 43A may extend with a component parallel to the mounting surface of the circuit board. Also, in the present embodiment, the lateral elastic portion 43A is parallel to the mounting surface over its entire length. Only a portion in the longitudinal direction may be parallel to the mounting surface, and the other portion may be inclined with respect to the mounting surface. Further, in the present embodiment, the lateral elastic portion 43A is positioned at the same position as the upper end of the fixed housing 20. Alternatively, for example, the lateral elastic portion 43A may be positioned slightly below the upper end of the fixed housing 20, that is, near the upper end. (upper position).

As can be seen from FIGS. 5A and 5B, the curved elastic portion 43B is substantially contained within the side open space 34 of the movable housing 30. As shown in FIG. The inner straight portion 43B-1 of the curved elastic portion 43B extends along the vertical central wall portion 32A forming a part of the column portion 32 of the movable housing 30, but is connected to the vertical central wall portion 32A. They are spaced apart in the width direction. Thus, the curved elastic portion 43B can be elastically displaced (elastically deformed) in the connector width direction within the side open space 34 when the plug signal terminal 40 receives an external force. Therefore, when the movable housing 30 is mated with the receptacle connector 2 at its receiving portion 33, if the movable housing 30 is displaced from the normal position with respect to the fixed housing 20, for example, in the width direction of the connector, the bending elasticity is increased. The displacement is absorbed by the elastic displacement of the portion 43B, and so-called floating is achieved. 5A and 5B, the curved elastic portion 43B of the right plug signal terminal 40 is compressed in the left-right direction, and the Elastic displacement is generated so that the curved elastic portion 43B of the plug signal terminal 40 is expanded in the same direction.

In this embodiment, the lateral elastic portion 43A of the plug signal terminal 40 extends inward in the connector width direction from the fixed side held portion 44 (upper end position of the fixed housing 20) in parallel with the surface of the circuit board. . That is, the lateral elastic portion 43A is positioned away from the movable housing 30 in the connector width direction. Therefore, the lateral elastic portion 43A is elastically deformed greatly with respect to the vertical movement of the movable housing 30. As shown in FIG. As a result, the amount of deviation that can be absorbed in the vertical direction increases.

In addition, the curved elastic portion 43B is located on the movable housing 30 side with respect to the lateral elastic portion 43A in the connector width direction, but it is located in the direction parallel to the surface of the circuit board (connector width direction and terminal arrangement direction). The amount of elastic deflection of the curved elastic portion 43B is determined by the vertical dimension of the curved elastic portion 43B, and does not change depending on the position in the width direction of the connector. Therefore, the amount of deviation that can be absorbed by the curved elastic portion 43B in the direction parallel to the surface of the circuit board is ensured without being affected by the position of the curved elastic portion 43B.

In addition, in this embodiment, since the curved elastic portion 43B is positioned below the thrust inverted U-shaped portion 42, the bending arm length (the dimension in the vertical direction) of the curved elastic portion can be set long. The amount of elastic deformation of the curved elastic portion 43B in the direction parallel to the surface of the circuit board can be increased.

As can be seen in FIGS. 5A and 5B, the plug power terminal 50 is formed by bending a flat metal strip having a substantially uniform width along its entire length and bending it in its thickness direction. The plug power supply terminal 50 has the same shape as the plug signal terminal 40 and is arranged at the same position when viewed from the terminal arrangement direction. As can be seen in FIG. 4, the plug power terminal 50 is formed to have a larger dimension (width dimension) in the terminal arrangement direction than the plug signal terminal 40, and a plurality of power supply elastic portions 53, which will be described later, are provided. The configuration is different from that of the plug signal terminal 40 in that it is divided into small elastic portions, and the configuration is the same as that of the plug signal terminal 40 in other respects. In the present embodiment, the plug power terminal 50 will be described with a focus on differences from the plug signal terminal 40, and parts common to the plug signal terminal 40 will be added to the reference numerals of the plug signal terminal 40 by adding "10". , and description thereof is omitted.

The plug power terminal 50 has a power elastic portion 53 between a power connection portion 51 and a thrust inverted U-shaped portion 52 and connecting them. The power supply elastic portion 53, in other words, the lateral elastic portion 53A and the curved elastic portion 53B are divided into a plurality of (four in the present invention) fine elastic portions 54 by slits formed at a plurality of positions in the terminal arrangement direction. It is The arrangement pitch dimensions of the plurality of fine elastic portions 54 are all equal and smaller than the arrangement pitch dimension of the plurality of plug signal terminals 40 . The arrangement pitch dimension of the plurality of fine elastic portions 54 is smaller than the arrangement pitch dimension of receptacle power supply terminals 130 provided in the receptacle connector 2, which will be described later. In the plug power terminal 50, it is the power elastic portion 53 that is formed separately. It is a member.

In the present embodiment, the arrangement pitch dimensions of the plurality of fine elastic sections 54 are all equal, but instead of this, some or all of the plurality of fine elastic sections 54 may have different arrangement pitch dimensions. Further, in the present embodiment, the adjacent fine elastic portions 54 are separated from each other over the entire longitudinal direction, but instead of this, they may be connected at a part thereof in the longitudinal direction.

In this embodiment, the gaps between the plurality of fine elastic sections 54 in the power supply elastic section 53 are narrower than the gaps between the plurality of signal elastic sections 43 in the plug signal terminals, and the fine elastic sections 54 are narrower by that amount. can be increased, or the cross-sectional area of each fine elastic portion 54 can be increased. As a result, the cross-sectional area of the power-supply elastic portion 53, that is, the total cross-sectional area of the plurality of fine elastic portions 54 is increased, so that a larger amount of current can flow. Moreover, as a result of reducing the array pitch dimension of the fine elastic portions 54, the width of each fine elastic portion 54 itself can also be reduced, and the elasticity of the power supply elastic portion 53 equal to or greater than that of the signal elastic portion 43 can be ensured. .

Further, in the present embodiment, the thrusting inverted U-shaped portion 52 is not divided in the terminal arrangement direction, and the power supply inner contact portion 52A and the power supply outer contacting portion 52B of the thrusting inverted U-shaped portion 52 are not divided in the terminal arrangement direction. Since it has one contact surface that is continuous in the direction, regardless of the arrangement pitch dimension of the plug signal terminals 40, the number of the fine elastic portions 54 can be increased or the cross-sectional area of each fine elastic portion 54 can be increased. can pass a large current. In addition, the number of receptacle power terminals 130 to be described later can be selected as mating terminals regardless of the number of fine elastic portions 54, and a large amount of elasticity can be ensured regardless of the number of receptacle power terminals 130.

In addition, since the plug power terminal 50 has a substantially uniform width over the entire length, the width dimension (dimension in the terminal arrangement direction) of the plug power terminal 50 is not increased locally, and the width dimension as a whole is suppressed. The width can be effectively used, and the elasticity of the power supply elastic portion 53 can be secured.

Furthermore, since the plug power terminals 50 have the same shape as the signal terminals when viewed from the terminal arrangement direction, when the plug connector 1 is manufactured, the plug signal terminals 40 and the plug power terminals 50 are bent. Metal fittings can be shared. Further, since the plug power terminals 50 are arranged at the same positions as the signal terminals when viewed from the terminal arrangement direction, the signal elastic part 43 and the power supply elastic part 53 are arranged at the same position when viewed from the terminal arrangement direction. As a result, the plug signal terminals 40 and the plug power terminals 50 are likely to be elastically deformed due to floating in the plug connector 1 as a whole.

As seen in FIGS. 4 and 6A and 6B, the holding metal fitting 60 is formed by bending a metal plate member in the plate thickness direction, and extends straight in the vertical direction to the movable housing 30. a fixed mounting portion 61; a substantially U-shaped holding portion 62 which is connected to the upper end of the mounting portion 61 and clamps and holds a held plate portion 142A of a held metal fitting 140 of the receptacle connector 2, which will be described later; The lower end of the mounting portion 61 has an end projecting portion 63 that is bent outward in the terminal arrangement direction and projected from the movable housing 30 . The holding metal fitting 60 is held by being molded integrally with the movable housing 30 and also functions as a reinforcing metal fitting that reinforces the movable housing 30 .

As shown in FIGS. 6A and 6B, the mounting portion 61 is embedded in the vertical end wall portion 32B of the movable housing 30 so as to extend vertically, and is integrated with the vertical end wall portion 32B. It is fixedly attached to the longitudinal end walls 32B by molding. As seen in FIG. 4 , the upper end of the mounting portion 61 is bent inward in the terminal arrangement direction and connected to the lower portion of the holding portion 62 . That is, the holding portion 62 is located inside the mounting portion 61 in the terminal arrangement direction.

The holding portion 62 has a pair of elastic pinching pieces 62A whose plate surfaces face each other in the connector width direction, extend upward, and are elastically displaceable in the connector width direction. As can be seen in FIGS. 6A and 6B, the pair of elastic pinching pieces 62A are positioned near the upper end of the elastic pinching pieces 62 so as to hold the held plate portion 142A of the receptacle connector 2 in the connector width direction. It has a clamping portion 62A-1 for clamping and holding (in the plate thickness direction of the held plate portion 142A). Specifically, the pair of elastic pinching pieces 62A are inclined inward in the connector width direction so as to approach each other as they go upward, and the elastic pinching pieces 62A are inclined inward in the connector width direction at positions near the upper ends of the elastic pinching pieces 62A. The projecting pinching portions 62A-1 (see FIGS. 6A and 6B) are formed, and are inclined outward in the width direction of the connector so as to separate from each other as they go upward. As shown in FIG. 6(B), the pair of elastic clamping pieces 62A clamp and hold the held plate portion 142A of the receptacle connector 2 in the connector-fitted state, thereby holding the plug terminals 40, 50 together. and receptacle terminals 120 and 130 provided on the receptacle connector 2 are kept in contact with each other.

As shown in FIGS. 1A and 1B, the end projecting portion 63 projects from the lower end surface (surface perpendicular to the terminal arrangement direction) of the vertical end wall portion 32B of the movable housing 30. , in the space formed between the two restricted portions 32C of the movable housing 30 in the connector width direction (see also FIG. 7(D)).

As seen in FIG. 4, the abutting metal fittings 70 are positioned below the holding metal fittings 60 and outward in the terminal arrangement direction, and are provided on both sides of the holding metal fittings 60 in the connector width direction. The abutment fitting 70 is formed by bending a strip-shaped metal plate member into a crank shape in the plate thickness direction, and is embedded in the regulated portion 32C of the movable housing 30 in an inverted L shape when viewed in the terminal arrangement direction. The embedded portion 71 that is held, the contact portion 72 that is bent at the lower end of the embedded portion 71 and extends outward in the connector width direction, and the upper end of the embedded portion 71 (the end facing inward in the connector width direction). ) extending inward in the width direction of the connector. The abutment fitting 70 is held by the regulated portion 32</b>C of the movable housing 30 in this way, and thus functions as a reinforcing fitting that reinforces the movable housing 30 .

As seen in FIG. 3, the contact portion 72 has its lower portion (upper portion in FIG. 3) protruding slightly from the bottom surface (upper surface in FIG. 3) of the regulated portion 32C. The lower surface of the abutting portion 72 exposed from the bottom surface of the regulated portion 32C (the upper surface in FIG. 3) is exposed to the circuit board when the movable housing 30 moves downward (upward in FIG. 3) toward the circuit board. It forms a contact surface 72A that can contact the surface of . The side projecting portion 73 projects from the inner surface of the upper portion of the regulated portion 32C in the connector width direction at a position lower than the end projecting portion 63 of the holding metal fitting 60, and extends from the inner surface of the movable housing 30 in the connector width direction. It is positioned in the space formed between the two regulated portions 32C (see also FIG. 7(D)).

In this embodiment, the abutment surface 72A of the abutment portion 72 of the abutment fitting 70 is exposed on the bottom surface of the movable housing 30, so that when the receptacle connector 2 is pushed into the movable housing 30 with a strong force, , the contact surface 72A of the contact fitting 70, not the movable housing 30, contacts the circuit board. Therefore, the movable housing 30 itself does not come into contact with the circuit board, and as a result damage to the movable housing 30 is prevented. Further, in the present embodiment, the contact surface 72A of the contact portion 72 is a plate surface (rolled surface) of the metal plate member, so that the movable housing 30 moves in a direction parallel to the circuit board to move the same. When absorbing the deviation in the direction, the contact portion 72 can smoothly come into sliding contact with the surface of the circuit board at the contact surface 72A.

As shown in FIGS. 1A and 4, the fixing metal fitting 80 is positioned so as to overlap with the holding metal fitting 60 and the abutting metal fitting 70 in the terminal arrangement direction. The fixing metal member 80 is formed by bending a metal plate member in the plate thickness direction. , connecting portions 82 extending in the connector width direction and connecting the embedded portions 81 to each other, and fixing portions 83 bent at the lower ends of the respective embedded portions 81 and extending outward in the connector width direction. The fixing metal fitting 80 is held by the connected portion 22 of the fixed housing 20 in this way, and thus functions as a reinforcing metal fitting that reinforces the fixed housing 20 .

As seen in FIG. 4, the embedded portion 81 includes a vertical plate portion 81A having a plate surface perpendicular to the connector width direction, and a horizontal plate portion 81A bent at the upper edge of the vertical plate portion 81A and extending inward in the connector width direction. and a plate portion 81B. The vertical plate portion 81A is entirely embedded in the connected portion 22 of the fixed housing 20 . As can be seen in FIG. 1A, the horizontal plate portion 81B has its upper surface located at substantially the same height as the upper surface of the connected portion 22, and is the inner portion (inner half portion) in the terminal arrangement direction. is embedded in the intermediate portion 21 of the fixed housing 20, while the outer portion (outer half portion) in the terminal arrangement direction is exposed from the upper surface of the connected portion 22 to be connected. It is embedded in the portion 22 .

Further, as seen in FIG. 1A, the connecting portion 82 has a plate surface perpendicular to the vertical direction, and connects the outer halves of the horizontal plate portion 81B of the embedded portion 81 to each other. ing. The upper surface of the connecting portion 82 is located at substantially the same height as the upper surface of the connected portion 22 . Also, the connecting portion 82 is positioned at the same height as the end projecting portion 63 of the holding metal fitting 60 . The fixed portion 83 is located below the bottom surface of the fixed housing 20 and at the same height as the connection portions 41 and 51 of the plug terminals 40 and 50, and is fixed to the corresponding portion of the circuit board by soldering. ing.

The fixing fitting 80 having such a structure connects the two fixed housings 20 together, and is soldered to the circuit board at the fixing portion 83 so as to fix these fixed housings 20 to the circuit board. It's becoming

Next, manufacturing steps of the plug connector 1 will be described with reference to FIGS. 7(A) to 7(D). First, in a mold (not shown), the carrier-attached plug signal terminal material P1 (see FIG. 7(A)) and the carrier-attached plug power terminal material P2 (see FIG. 7(A)) are placed in the terminal arrangement direction. , and a reinforcing metal fitting material P3 (see FIGS. 7(A) and (B)) with a carrier in which a holding metal fitting 60, an abutment metal fitting 70 and a fixing metal fitting 80 are integrally arranged is arranged in the plug terminal material in the terminal arrangement direction. Arranged outside P1 and P2. Here, the plug signal terminal material P1 and the plug power terminal material P2 are collectively referred to as "plug terminal materials P1 and P2" as required.

As can be seen in FIG. 7A, the carriers are connected to the connecting portions 41, 51 in the plug terminal blanks P1, P2. As can be seen in FIGS. 7A and 7B, in the reinforcing metal fitting material P3, the carrier is attached to the outer edge of the connecting portion 82 of the fixing metal fitting 80 (two side edges extending in the connector width direction, in the terminal arrangement direction). outer edge). Further, as seen in FIG. 7C, in the reinforcing metal fitting material P3, the end projecting portion 63 of the holding metal fitting 60, the side projecting portion 73 of the abutting metal fitting 70, and the connecting portion 82 of the fixing metal fitting 80 are formed. are connected by a connecting portion P3A, and the holding metal fitting 60, the abutting metal fitting 70 and the fixing metal fitting 80 are integrated. The connecting portion P3A is located at the same position as the end projecting portion 63 and the connecting portion 82 in the vertical direction and above the side projecting portion 73 . As seen in FIG. 7(C), the connecting portion P3A has side arm portions P3B extending on both sides in the connector width direction, and is connected to the side protruding portion 73 by the side arm portions P3B. ing. The side arm portion P3B is formed with a stepped portion having a step in the vertical direction, so that the end projecting portion 63 and the connecting portion 82 having different heights can be connected to the side projecting portion 73. It's becoming

Next, with the plug terminal materials P1 and P2 and the reinforcing metal fitting material P3 arranged in the mold, a molten electrical insulating material (resin or the like) is injected into the mold and solidified to form the fixed housing 20 and the movable housing. Mold 30. As a result, as shown in FIG. 7A, the plug terminal materials P1 and P2 and the reinforcing metal fitting material P3 are integrally molded with the movable housing 30, and the reinforcing metal fitting material P3 is also integrally molded with the fixed housing 20. . In the present embodiment, the fixed housing 20 and the movable housing 30 are molded at the same time, but instead, they may be molded at different timings.

Next, the plug terminals 40 and 50 are formed by cutting and removing the carriers from the plug terminal blanks P1 and P2, respectively. Further, the carrier and the connecting portion P3A are cut off from the reinforcing metal fitting material P3 to form the holding metal fitting 60, the abutting metal fitting 70 and the fixing metal fitting 80. As shown in FIG. When the connecting portion P3A is removed by cutting, the connecting portion P3A is cut off from the holding metal fitting 60 with a cutting margin, as indicated by the dashed line in FIG. It is formed as part 63 . In addition, the side arm P3B of the connecting portion P3A is cut off from the abutting fitting 70 with a cut margin, and the cut margin is formed as a side protruding portion 73. As shown in FIG. As a result, as shown in FIG. 7D, the end projecting portion 63 and the side projecting portion 73 are positioned so as to approach each other without contact.

In addition, in this embodiment, since the two side protruding portions 73 of the abutment fitting 70 are positioned below the connecting portion 82 of the fixing fitting 80, the movable housing 30 is parallel to the circuit board. Since the two side protruding portions 73 do not come into contact with the connecting portion 82 even when moving in the same direction, the side protruding portion 73 and the connecting portion 82 can be reliably prevented from being damaged.

Further, in this embodiment, the end projecting portion 63 of the holding metal fitting 60 and the connecting portion 82 of the fixing metal fitting 80 are positioned at the same height. However, as can be seen in FIG. 1A, on both sides of the end projecting portion 63 in the connector width direction, the end surfaces of the vertical end wall portions 32B of the movable housing 30 (surfaces perpendicular to the terminal arrangement direction) are provided. A protruding portion 32B-1 is provided which protrudes slightly outward from the end projecting portion 63 in the terminal arrangement direction. Therefore, even if the movable housing 30 moves greatly toward the connecting portion 82, the projecting portion 32B-1 comes into contact with the connecting portion 82, and the projecting end portion 63 does not contact the connecting portion 82. no. As a result, damage to the end projecting portion 63 and the connecting portion 82 can be reliably prevented.

Thus, the plug connector 1 is completed by cutting and removing the carrier from the plug terminal materials P1 and P2, and cutting and removing the carrier and the connecting portion P3A from the reinforcing metal fitting material P3.

In this embodiment, by cutting and removing the connection portion P3A in a state in which one metallic reinforcing metal fitting material P3 is held by the fixed housing 20 and the movable housing 30, the holding metal fitting 60, the abutting metal fitting 70 and the fixing metal fitting are removed. Since the metal fittings 80 are formed at the same time, the accuracy of the relative positions of the holding metal fittings 60, the abutting metal fittings 70 and the fixing metal fittings 80 is improved. In addition, since the reinforcing metal fitting material P3 is made of metal, the cut surface has a smooth surface with excellent cutting powder compared to the case of cutting, for example, a resin material containing glass fiber, and almost no cutting powder is generated. Processing becomes simple.

Next, the configuration of the receptacle connector 2 will be described. As seen in FIGS. 1 to 3, the receptacle connector 2 has a longitudinal direction (the same direction as the longitudinal direction of the plug connector 1) parallel to the mounting surface of another circuit board (not shown). An extending receptacle housing 90, receptacle signal terminals 120 and receptacle power terminals 130 arranged and held in the receptacle housing 90 with the longitudinal direction as the terminal arrangement direction (hereinafter, when there is no need to distinguish between the two, simply referred to as "receptacle terminals 120, 130"). ”), and held metal fittings 140 and fixing metal fittings 150 held by the receptacle housing 90 on both sides of the terminal arrangement range in the terminal arrangement direction.

The receptacle housing 90 includes a receiving side housing 100 that accommodates receiving inverted U-shaped portions 121 and 131 of the receptacle terminals 120 and 130 described later and receives the plug connector 1, and the receiving inverted U-shaped portions 121 and 131 described later. The receiving side housing 100 and the board side housing 110 are divided into a board side housing 110 which holds the receptacle terminals 120 and 130 at a portion near the connecting portions 124 and 134 of the terminal and is attached to the other circuit board. is molded into

The receiving side housing 100 is made symmetrical in the width direction of the connector, which is the width direction parallel to the surface of the other circuit board and perpendicular to the lengthwise direction. As can be seen in FIG. 3, the receiving housing 100 has a rectangular parallelepiped shape as a whole and is composed of a peripheral wall consisting of side walls 101 and end walls 102, a bottom wall 103 (see FIG. 1A), and a central wall 104. have.

As can be seen in FIG. 3, the central wall 104 extends in the terminal arrangement direction at the central position in the width direction of the connector in the space within the peripheral wall. A square annular space between the central wall 104 and the peripheral wall forms a fitting recess 105 that allows the fitting portion 31 of the movable housing 30 of the plug connector 1 to enter. In FIGS. 1 and 2, the receptacle connector 2 is positioned above the plug connector 1 and is shown in a state immediately before mating with the plug connector 1, so that the bottom wall 103 is positioned at the top and mated. The recess 105 opens downward.

As seen in FIG. 6A, the receiving side housing 100 is formed with a terminal accommodating portion 106 for accommodating the receptacle terminals 120 and 130 . The terminal accommodating portion 106 has a substantially inverted U shape, an outer groove portion 106A formed in the side wall 101, an inner groove portion 106B formed in the central wall 104, and a bottom portion so as to communicate the outer groove portion 106A and the inner groove portion 106B. and a bottom groove portion 106C formed in the wall 103. As shown in FIG.

Further, as shown in FIG. 8B, the bottom wall 103 of the receiving side housing 100 is formed with a bottom concave portion 103A recessed from the bottom surface of the bottom wall 103 in the shape of a square frame. The bottom recess 103A includes side recesses 103A-1 extending over the terminal array range in the terminal array direction at positions near both side edges in the connector width direction (positions near the outer surface of the side wall 101), and side recesses 103A-1 extending in the connector width direction. and an end recess 103A-2 extending between both ends of the side recess 103A-1. The side recess 103A-1 communicates with an outer groove 106A formed in the side wall 101. As shown in FIG.

As shown in FIG. 1(A), the board-side housing 110 has a rectangular frame shape conforming to the shape of the bottom recess 103A (see FIG. 8(B)) of the receiving-side housing 100, and extends in the terminal arrangement direction. It has two extending side walls 111 and an end wall 112 extending in the width direction of the connector and connecting the ends of the two side walls 111 to each other. The board-side housing 110 fits into the bottom recess 103A with the side walls 111 housed in the side recesses 103A-1 of the bottom recess 103A and the end walls 112 housed in the end recesses 103A-2 of the bottom recess 103A. The entire substrate-side housing 110 is accommodated. As will be described later, the substrate-side housing 110 is integrally molded with the receiving-side housing 100, and thus the receptacle terminals 120 and 130 are also integrally molded. , 133 are held.

In this embodiment, the receptacle housing 90 is divided into the receiving side housing 100 and the board side housing 110. Therefore, when the setting of the height dimension of the entire receptacle housing 90 is changed, the height of the board side housing 110 is changed. It is possible to deal with it by changing the dimensions. For example, in the present embodiment, the board-side housing 110 has a height dimension that allows the entire board-side housing 110 to be accommodated in the bottom recess 103A of the receiving-side housing 100. When it is desired to increase the height dimension, the receiving side housing 100 is not changed, but another type of board side housing having a larger height dimension is prepared so as to be integrated with the receiving side housing 100. It can be easily dealt with by molding.

Further, of the receiving side housing 100 and the board side housing 110, the receiving side housing 100 accommodates the contact portions of the receptacle terminals 120 and 130, so the structure is complicated and the required dimensional accuracy is high. On the other hand, the board-side housing 110, which only partially holds the receptacle terminals 120 and 130, has a simple structure and does not require high dimensional accuracy. Therefore, as described above, by changing only the substrate-side housing 110 to another substrate-side housing having a different height dimension without changing the receiving-side housing 100, an increase in manufacturing cost can be suppressed.

The receptacle signal terminals 120 and the receptacle power terminals 130 are made to have the same shape, and are arranged at equal intervals in the terminal arrangement direction according to the arrangement pitch dimension of the plug signal terminals 40 . In this embodiment, four receptacle signal terminals 120 and three receptacle power terminals 130 are provided.

As shown in FIG. 4, the receptacle signal terminal 120 is made by bending a thin metal flat strip piece in a strip shape over its entire length in its plate thickness direction. As shown in FIGS. 5A and 5B, the receptacle signal terminal 120 has an inverted U-shaped reception inverted U-shaped portion 121 accommodated in the terminal accommodating portion 106 of the reception side housing 100, and A transition portion 122 that is continuous with the lower end of a signal outer arm portion 121C (to be described later) of the two arms extending in the vertical direction of the receiving inverted U-shaped portion 121 and that is bent so as to be folded upward, and a signal outer arm portion. A held arm portion 123 located outside 121C in the width direction of the connector and extending straight upward through the transition portion 122 and then extending in a crank shape, and the upper end of the held arm portion 123 is bent. and a signal connection portion 124 extending outward in the width direction of the connector.

The receiving inverted U-shaped portion 121 includes a base portion 121A extending in the connector width direction within the bottom groove portion 106C, and a signal inner side portion extending downward in the inner groove portion 106B from the inner end portion of the base portion 121A in the connector width direction. It has an arm portion 121B and a signal outer arm portion 121C that extends downward in the outer groove portion 106A from the outer end portion of the base portion 121A in the connector width direction and is connected to the transition portion 122 described above. The signal inner arm portion 121B and the signal outer arm portion 121C are elastically displaceable in their plate thickness direction (connector width direction).

The signal inner arm portion 121B has a signal inner contact portion 121B-1 that is convexly curved outward in the connector width direction at a position near the lower end thereof. The signal outer arm portion 121C has a signal outer contact portion 121C-1 that is convexly curved inward in the connector width direction at a position near its lower end (almost the same position as the signal inner contact portion 121B-1 in the vertical direction). have. The curved top portions of the signal inner contact portion 121B-1 and the signal outer contact portion 121C-1 project from the inner groove portion 106B and the outer groove portion 106A, respectively, and are positioned within the fitting recess 105. As shown in FIG. As shown in FIG. 5B, when the receiving inverted U-shaped portion 121 receives the projecting inverted U-shaped portion 42 of the plug connector 1 from below in the connector mated state, the signal inner contact portion 121B- 1 is the signal inner contact portion 42A of the plunge reverse U-shaped portion 42, and the signal outer contact portion 121C-1 is elastically contacted with the signal outer contact portion 42B of the plunge reverse U-shaped portion 42. contact and become electrically conductive.

As shown in FIGS. 5A and 5B, the held arm portion 123 is positioned with a gap in the connector width direction between it and the signal outer arm portion 121C. It is accommodated in the groove portion 106A. The upper half of the held arm portion 123 is formed as a crank-shaped crank portion 123A, and is held by the receptacle housing 90 by integral molding with the crank portion 123A. The vertically extending lower half of the held arm portion 123 (the portion excluding the crank portion 123A) is elastically displaceable in the plate thickness direction (connector width direction) (see FIG. 5B). reference).

Signal connections 124 extend along the bottom surface (top surface in FIGS. 1, 2 and 5) of receiving housing 100, as seen in FIGS. is soldered to a signal circuit section (not shown).

Since the receptacle power supply terminal 130 is made in the same shape as the receptacle signal terminal 120 as described above, its configuration will be omitted by adding "10" to each part of the receptacle signal terminal 120. . At this time, regarding the name of each part, "for signal" shall be read as "for power supply".

In this embodiment, three receptacle power supply terminals 130 provided in the receptacle connector 2 are positioned corresponding to one plug power supply terminal 50 of the plug connector 1 (see FIG. 4). The power contact portions 131B-1 and 131C-1 of the power terminal 130 come into contact with the power contact portions 52A and 52B of the one plug power terminal 50, respectively.

As shown in FIG. 1A, the metal fittings 140 to be held are held one by one by integral molding at both ends of the receptacle connector 2 in the terminal arrangement direction. As shown in FIG. 4, the held metal fittings 140 positioned at the other end are provided offset from the central position of the receptacle connector 2 in the width direction of the connector. These two held metal fittings 140 are made by bending a metal plate member in its plate thickness direction so that they have a shape that is symmetrical with respect to the center of the receptacle connector 2 when viewed in the vertical direction. It is

As shown in FIG. 4, the metal fitting 140 to be held is a plate-shaped member embedded in the end wall 102 and the bottom wall 103 of the receiving side housing 100 with a plate surface perpendicular to the terminal arrangement direction. a plate-like held portion 142 positioned in the center of the receiving side housing 100 in the connector width direction with the plate surface perpendicular to the connector width direction; and the upper edge of the mounting portion 141. and a fixing portion 143 extending outward in the terminal arrangement direction in a crank shape from (lower edge in FIG. 3). The held metal fitting 140 also functions as a reinforcing metal fitting that reinforces the receiving-side housing 100 by being held by the receiving-side housing 100 .

As shown in FIGS. 6A and 6B, the held portion 142 is embedded in the bottom wall 103 at its upper end, and is located outside the terminal arrangement direction of the two vertically extending side edges. The located outer edge is embedded in the side wall 101 (see FIG. 3). As shown in FIGS. 6A and 6B, the portions other than the upper end portion and the outer edge portion stand upright from the bottom wall 103 and extend at both ends of the fitting recess 105 in the terminal arrangement direction. located in space. The portion positioned within the fitting recess 105 is a held plate portion 142A held by being pressed by a pair of elastic pinching pieces 62A of the holding fitting 60 provided on the plug connector 1 in the connector fitted state. (see FIG. 6(B)).

As seen in FIG. 3, the fixing portion 143 extends outward in the terminal arrangement direction from the lower portion of the end wall 102 at an outer position in the connector width direction, and is bent downward and outward in the terminal arrangement direction to form a crank. extending in the shape of The tip portion of the fixing portion 143 extending outward in the terminal arrangement direction is located at the same height as the connection portions 124 and 134 of the receptacle terminals 120 and 130, and is fixed by soldering to corresponding portions of another circuit board. It has become so.

As shown in FIG. 4, the fixture 150 has a shape similar to the above-described held fixture 140 with the portion of the mounting section 141 on the inner side in the connector width direction and the held section 142 omitted. It is made by bending a metal plate member of 1 in the plate thickness direction. As seen in FIG. 3, the fixing bracket 150 is integrally formed with the end wall 102 at an outer position on the side opposite to the fixing portion 143 of the held bracket 140 in the width direction of the connector. As seen in FIG. 4, the fixture 150 has a mounting portion 151 that extends vertically and is embedded in the end wall 102, and extends outward in the terminal arrangement direction from the upper end of the mounting portion 151 (lower end in FIG. 3). and a fixing portion 152 extending like a crank. The fixing portion 152 has the same shape as the fixing portion 143 of the metal fitting 140 to be held and is positioned at the same height as the fixing portion 143, so that it can be soldered and fixed to the corresponding portion of another circuit board. It has become. By being held by the end wall 102 of the receiving-side housing 100 , the fixing metal fitting 150 also functions as a reinforcing metal fitting that reinforces the receiving-side housing 100 .

Next, manufacturing steps of the receptacle connector 2 will be described with reference to FIGS. 8 to 10. FIG. First, a reinforcing metal fitting material P4 with a carrier is arranged in a mold (not shown). In the reinforcing metal fitting material P4, one carrier is collectively connected to the held metal fitting 140 via the belt-shaped piece P4A and to the fixing metal fitting 150 via the belt-shaped piece P4B. When the reinforcing metal fitting material P4 is placed in the mold, the strips P4A and P4B are in a straight shape extending in the terminal arrangement direction, and the fixing portion 143 of the held metal fitting 140 and the fixing portion 152 of the fixing metal fitting are not yet formed.

Next, a molten electrical insulating material (resin or the like) is injected into the mold and solidified to form the receiving side housing 100 . As a result, the reinforcing metal fitting material P4 is integrally formed with the receiving side housing 100. As shown in FIG.

Next, as shown in FIGS. 8A and 8B, the portions of the strips P4A and P4B extending from the receiving side housing 100 in the terminal arrangement direction are bent in the plate thickness direction in a crank shape, A fixing portion 143 of the held metal fitting 140 and a fixing portion 152 of the fixing metal fitting are formed. At this time, the positions at which the extending portions of the strips P4A and P4B are bent (positions in the extending direction (terminal arrangement direction) of the extending portions) are determined according to the height dimension of the substrate housing 110. FIG. In the present embodiment, as shown in FIGS. 8A and 8B, the strips P4A and P4B are bent in the extending direction at positions near the receiving side housing 100, thereby 152 are formed.

As described above, in this embodiment, by providing the reinforcing metal fitting material P4 with the long strips P4A and P4B, the height of the board-side housing 110 can be changed according to the setting of the overall height dimension of the receptacle housing 90. When the dimensions are to be changed, the strips P4A and P4B are bent at positions corresponding to the height dimension of the board-side housing 110 after the change (positions in the longitudinal direction of the strips P4A and P4B) to form the fixing portion. 143, 152 can be formed. Therefore, according to the present embodiment, the held metal fittings 140 and the fixing metal fittings 150 provided for a plurality of types of connectors having different heights can be made of one type of material, thereby suppressing an increase in manufacturing cost accordingly.

Next, the inverted U-shaped receiving portions 121 and 131 of the receptacle terminal material P5 with carrier are inserted into the terminal accommodating portion 106 of the receiving side housing 100 on the bottom wall 103 side of the receiving side housing 100 (Fig. 9A). It is accommodated from the lower side (the upper side in FIG. 9(B)). In the receptacle terminal material P5, all the receptacle terminals 120 and 130 are collectively connected to one carrier through strips P5A. When the receiving inverted U-shaped portions 121 and 131 of the receptacle terminal material P5 are accommodated in the receiving side housing 100, the strip P5A has a straight shape extending in the width direction of the connector, and the receptacle terminals 120 and 130 are connected. Portions 124 and 134 have not yet been formed.

Next, as shown in FIGS. 9A and 9B, the portion of the strip P5A extending from the receiving side housing 100 in the terminal arrangement direction is bent in the plate thickness direction in a crank shape to form a receptacle terminal. Connections 124, 134 of 120, 130 are formed. At this time, the position at which the extending portion of the strip P5A is bent (position in the extending direction of the extending portion (connector width direction)) is determined according to the height dimension of the substrate housing 110. FIG. In this embodiment, as shown in FIGS. 9A and 9B, the connecting portions 124 and 134 are bent by bending the strip P5A in the extension direction at a position near the receiving side housing 100. formed.

As described above, in this embodiment, by providing the receptacle terminal material P5 with the long strip P5A, the height of the board-side housing 110 can be changed according to the setting of the height of the entire receptacle housing 90. is to be changed, the narrow strip P5A is bent at a position corresponding to the height dimension of the board-side housing 110 after the change (longitudinal position of the narrow strip P5A) to connect the connecting portions 124, 134 can be formed. Therefore, according to the present embodiment, the receptacle terminals 120 and 130 provided in a plurality of types of connectors having different heights can be made from one type of material, thereby suppressing an increase in manufacturing cost.

Next, as seen in FIGS. 10A and 10B, the board-side housing 110 (shown only in FIG. 10B) is integrally formed with both the receiving-side housing 100 and the receptacle terminal material P5. As a result, the board-side housing 110 holds the receptacle terminals 120 and 130 with the side wall 111 accommodated in the side recess 103A-1 (see FIG. 8B) of the receiving-side housing 100. Hold (see also FIG. 5(A)). The receptacle connector 2 is completed by cutting the strips P4A and P4B of the reinforcing metal fitting material P4 and the narrow strip P5A of the receptacle terminal material P5 at predetermined longitudinal positions to separate the respective carriers. In this embodiment, the board-side housing 110 is integrally formed not only with the receptacle terminal material P5 but also with the receiving-side housing 100. Therefore, not only the strength of the receptacle housing 90 itself but also the receptacle terminals 120 and 130 The holding force between the receptacle housing 90 can be improved.

Next, the fitting operation of the plug connector 1 and the receptacle connector 2 will be described with reference to FIGS. 5 and 6. FIG.

First, the plug connector 1 and the receptacle connector 2 are attached to corresponding circuit boards (not shown). Specifically, in the plug connector 1, the connection portions 41 and 51 of the plug terminals 40 and 50 are soldered to the corresponding circuit portion of the circuit board, and the fixing portion 83 of the fixing fitting 80 is soldered to the corresponding portion of the circuit board. be. In the receptacle connector 2, the connecting portions 124 and 134 of the receptacle terminals 120 and 130 are connected by soldering to corresponding circuit portions of other circuit boards, and the fixing portion 143 of the held metal fitting 140 and the fixing portion 152 of the fixing metal fitting 150 are connected to each other by soldering. are soldered to their circuit board counterparts.

In this state, as shown in FIGS. 5(A) and 6(A), the receptacle connector 2 is placed above the plug connector 1 so that the fitting recess 105 opens downward just before mating. stance. After that, the receptacle connector 2 is lowered together with the other circuit board to which the receptacle connector 2 is attached (see arrows in FIGS. 5(A) and 6(A)). As the receptacle connector 2 is lowered, the fitting portion 31 of the movable housing 30 of the plug connector 1 enters the fitting recess 105 of the receptacle connector 2 from below, and the center wall 104 of the receptacle connector 2 is pushed into the fitting recess 105 of the receptacle connector 2. It enters the receiving portion 33 of the movable housing 30 from above (see FIG. 5(B)). As a result, the plug connector 1 and the receptacle connector 2 are brought into a connector-fitting state in the normal positions shown in FIGS. 5(B) and 6(B).

In the connector fitting process, when the receptacle connector 2 is pushed into the movable housing 30 of the plug connector 1 from above, the movable housing 30 is subject to elastic displacement of the lateral elastic portions 43A, 53A of the plug terminals 40, 50. to move down. In this embodiment, since the abutment portion 72 of the abutment fitting 70 is exposed on the bottom surface of the movable housing 30, the abutment portion 72 of the abutment fitting 70 abuts against the circuit board instead of the bottom surface of the movable housing 30. The contact surface 72A contacts the mounting surface of the circuit board. As a result, the movable housing 30 does not come into contact with the circuit board, and damage to the movable housing 30 is prevented.

In the connector-fitted state, the thrusting inverted U-shaped portions 42, 52 of the plug terminals 40, 50 enter the receiving inverted U-shaped portions 121, 131 of the receptacle terminals 120, 130 from below, and the receiving inverted U-shaped portions are formed. The contact portions 121B-1, 121C-1, 131B-1 and 131C-1 of the portions 121 and 131 are pressed in the width direction of the connector. Under such a clamping state, the signal contact portions 121B-1 and 121C-1 of the receptacle signal terminal 120 are brought into contact with the signal contact portions 42A and 42B of the plug signal terminal 40 with contact pressure, and The power contact portions 131B-1 and 131C-1 of the receptacle power terminal 130 are brought into contact with the power contact portions 52A and 52B of the plug power terminal 50 with contact pressure (see FIG. 5B). As a result, receptacle terminals 120 and 130 and plug terminals 40 and 50 are electrically connected.

Further, as shown in FIG. 6B, in the connector mated state, the held plate portion 142A of the held metal fitting 140 of the receptacle connector 2 is held by the pair of elastic pinching pieces of the holding metal fitting 60 of the plug connector 1. It enters between 62A from above, and is held by being pinched in the connector width direction (plate thickness direction of held plate portion 142A) by pinching portions 62A-1 of the pair of elastic pinching pieces 62A. As a result, the contact positions between the plug terminals 40, 50 and the receptacle terminals 120, 130 are well maintained.

In this embodiment, the holding metal fitting 60 and the held metal fitting 140 are positioned outside the terminal arrangement range, and the pair of elastic pinching pieces 62A of the holding metal fitting 60 press the held plate portion 142A of the held metal fitting 140. It is designed to hold. Thus, the holding metal fittings 60 and the held metal fittings 140 are provided near the ends of the connectors 1 and 2 in the terminal arrangement direction. In other words, when viewed in the vertical direction, the vertical axis (axis extending in the vertical direction) passing through the central positions of the connectors 1 and 2, and the horizontal axis (the connector width direction) passing through the central positions of the connectors 1 and 2 in the terminal arrangement direction ) are located sufficiently far from each of the As a result, it is possible to sufficiently withstand unintentional torque generated around the vertical axis and around the horizontal axis to maintain the contact state between the terminals.

The receptacle connector 2 is not necessarily fitted to the plug connector 1 at a regular position in the terminal arrangement direction, connector width direction, and vertical direction. Since the receptacle connector 2 is attached to a circuit board and the field of view of the plug connector 1 is blocked by this circuit board, it is likely to be fitted at a position deviated from the normal position. In this embodiment, the displacement between the connectors 1 and 2 is absorbed by the movable housing 30 moving in the direction of displacement under the elastic displacement of the elastic portions 43 and 53 of the plug terminals 40 and 50. . Specifically, the displacement in the vertical direction is mainly absorbed by the elastic displacement of the lateral elastic portions 43A, 53A of the elastic portions 43, 53. As shown in FIG. Moreover, deviations in the terminal arrangement direction and the connector width direction are absorbed by the elastic displacement of the curved elastic portions 43B, 53B of the elastic portions 43, 53, respectively.

1 Plug Connector 60 Holding Metal 2 Receptacle Connector 61 Mounting Portion 10 Plug Housing 62 Holding Portion 20 Fixed Housing 62A Elastic Clamping Piece 30 Movable Housing 63 End Protruding Portion 31 Fitting Portion 70 Contacting Metal Fitting 33 Receiving Portion 72 Contacting Portion 40 Plug signal terminal 72A Contact surface 41 Signal connection part 73 Side projecting part 42 Push-in inverted U-shaped part (movable side held part) 80 Fixing bracket 42A Signal inner contact part 90 Receptacle housing 42B Signal outer contact part 100 Receiving side housing 43 Signal elastic portion 110 Board side housing 43A Lateral elastic portion 120 Receptacle signal terminal 43B Curved elastic portion 121B-1 Signal inner contact portion 44 Fixed side held portion 121C-1 Signal outer contact portion 50 Plug power supply Terminal 124 Signal connection portion 51 Power supply connection portion 130 Receptacle power supply terminal 53 Power supply elastic portion 131B Power contact portion 53A Lateral elastic portion 140 Metal fitting to be held 53B Curved elastic portion 142A Plate portion to be held 54 Fine elastic portion 150 Fixing metal fitting

Claims (6)

A terminal having a connection portion for connecting to a circuit board on one end side in the longitudinal direction of the terminal and a contact portion for contacting a mating connector on the other end side of the terminal, and a housing for holding a plurality of the terminals in an array. wherein the housing is a fixed housing attached to the circuit board through the terminals, and the housing is formed as a separate member from the fixed housing, and the contact portions of the terminals are arranged so as to be movable with respect to the fixed housing. A circuit board electrical connector having a movable housing comprising:
The terminal extends vertically and includes a fixed-side held portion held by the fixed housing, a movable-side held portion held by the movable housing, and between the fixed-side held portion and the movable-side held portion. and an elastic portion provided;
The elastic portion extends in a direction having a component parallel to the surface of the circuit board from the upper end of the fixed-side held portion at the same position as the upper end of the fixed housing in the vertical direction, and has lateral elasticity capable of elastic displacement in the vertical direction. extending downward from the lateral elastic portion to the circuit board, extending upward through the curved portion, and movable with respect to the lateral elastic portion in the connector width direction parallel to the surface of the circuit board and perpendicular to the terminal arrangement direction. An electrical connector for a circuit board, comprising: a curved elastic portion located on the housing side and capable of elastic displacement in a direction parallel to a surface of the circuit board. 2. The electrical connector for a circuit board according to claim 1, wherein the fixed side held portion of the terminal is embedded in the fixed housing. 3. The electrical connector for a circuit board according to claim 1, wherein the movable-side held portion of the terminal is embedded in the movable housing. 4. The terminal according to any one of claims 1 to 3, wherein the contact portion is formed by an extension portion from the movable-side held portion and is positioned in contact with a wall surface of the movable housing. 3. The electrical connector for circuit boards according to claim 1. 5. The electrical connector for a circuit board according to claim 1, wherein the movable side held portion of the terminal is positioned higher than the fixed side held portion. 6. The terminal is held by integral molding of the fixed side held portion with the fixed housing and the movable side held portion with the movable housing, respectively. The electrical connector for circuit boards according to 1.

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