TW201707291A - Electric connector for circuit boards - Google Patents

Abstract

The technical problem to be solved and the subject of the invention are providing an electric connector for circuit boards that can prevent a connector insertion from damaging both the protruding wall and the outer walls of a case. The technical solution to the problem is a case comprising: a bottom wall (11) opposite to the mounting surface of a circuit board, and a pair of outer walls (15) erecting from the opposite edges of the bottom wall (11). And in the electric connector for circuit boards with a protruding wall erecting from the bottom wall between a pair of outer walls (15), reinforced metal accessories comprise: a reinforced part of an upright surface of an outer wall (31), retained in an outer wall (15) and extending along an upright surface of an outer wall (15) which are opposite to the upright surface of the protruding wall (12); a reinforced part of the upright surface of the protruding wall (35), retained in the protruding wall (12) and extending along the upright surface of the protruding wall (12) which is opposite to the reinforced parts of the upright surfaces of the outer walls (31); a connection bottom part (38), extending along the bottom wall (11) and connecting both a reinforced part of an upright surface of an outer wall (31) and a side end of a bottom wall of a reinforced part of the upright surface of the protruding wall (35).

Description

Electrical connector for circuit substrate

The present invention relates to an electrical connector for a circuit board that is disposed on a mounting surface of a circuit board.

As the electrical connector for a circuit board, for example, a socket connector of Patent Document 1 is known. The socket connector of Patent Document 1 is formed by integrally molding a plurality of terminals arranged in a terminal arrangement direction in a direction parallel to a mounting surface of the circuit board, and an outer position of the terminal arrangement range arranged in the terminal arrangement direction. The reinforced metal fittings are kept in a resin outer casing. The outer casing has: a bottom wall parallel to the mounting surface; a protruding wall extending from the bottom wall toward the terminal arrangement direction; and a surrounding wall erecting the protruding wall from the bottom wall. The peripheral wall has a pair of side walls extending as an outer wall toward the terminal arrangement direction, and a pair of end walls extending toward the width direction of the connector at a right angle with respect to the terminal arrangement direction and connecting the ends of the pair of side walls to each other as an outer wall . The annular space between the protruding wall and the peripheral wall is a receiving portion formed to receive a frame-shaped fitting portion of the plug connector from the opening side of the annular space.

Reinforced metal fittings are made by bending metal sheet members The bottom plate portion extending in the width direction of the connector along the bottom wall of the outer casing; and the inner plate standing upward from the inner edge of the bottom plate portion (the side edge on the inner side in the terminal arrangement direction) in the central portion in the width direction of the connector And two outer plate portions that are erected upward from the outer edge of the bottom plate portion (the side edge on the outer side in the terminal arrangement direction) at both end regions in the width direction of the connector. The inner plate portion has an upright plate portion at a right angle to the terminal arrangement direction. The upright plate portion extends along an end surface (a surface at right angles to the terminal arrangement direction) of the end portion of the protruding wall in the terminal arrangement direction, and the plate surface thereof is exposed at the end surface. Further, the two outer plate portions are bent from the upper side into an L shape, and are not exposed on the inner surface of the end wall but are buried inside the end wall.

In the socket connector constructed as described above, the plate surface of the upright plate portion of the reinforced metal fitting is exposed at the end surface of the protruding wall, even during the insertion and removal of the connectors, even if the fitting portion of the plug connector is opposite to the socket connector When the terminal array direction is deviated from the regular fitting position, the fitting portion abuts against the plate surface of the upright plate portion, and therefore does not directly abut against the end surface of the protruding wall of the outer casing. Patent Document 1 prevents damage such as cutting of the end surface of the protruding wall as described above.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2006-331679

However, in Patent Document 1, when the fitting portion of the plug connector is displaced from the normal position in the terminal arrangement direction, when one end side in the same direction abuts against the upright plate portion exposed at the end surface of the protruding end of the socket connector, The fitting portion abuts on the other end portion and the inner surface of the end wall (the wall surface forming the receiving portion). In Patent Document 1, since the inner surface of the end wall is not covered by the reinforced metal fitting, the fitting portion of the plug connector directly contacts the inner surface of the end wall, and the inner surface is cut or the like. The damage is caused.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electrical connector for a circuit board that can prevent damage to both the protruding wall and the outer wall of the outer casing during the insertion and removal of the connector.

The electrical connector for a circuit board of the present invention is an electrical connector for a circuit board that is placed on a mounting surface of a circuit board and that is inserted into and out of the connector in a direction in which the connector is inserted at a right angle to the mounting surface. a reinforced metal fitting made of a bent metal plate member; forming a separate member with the reinforced metal fitting or a terminal formed as a part of the reinforced metal fitting; and opening the connector in the direction in which the connector is inserted and removed to form the opposite connector a receiving portion for inserting and removing, and directly or indirectly holding the outer casing of the reinforcing metal fitting and the terminal, the outer casing having: a bottom wall facing the mounting surface; and an outer wall erected from opposite edges of the bottom wall; and A protruding wall that is erected from the bottom wall between the pair of outer walls.

In the above electrical connector for a circuit board, the present invention is characterized in that the reinforced metal fitting has a reinforced portion of the outer wall and a ridge An upright surface of the wall of the upright facing outer wall extends and is retained by the outer wall; the protruding wall upright reinforcement portion extends along the vertical surface of the protruding wall opposite the outer wall upright reinforcement portion and is retained by the protruding wall; and the bottom portion is connected The outer wall vertical surface reinforcing portion and the bottom wall side end portion of the protruding wall vertical surface reinforcing portion are connected to each other along the bottom wall.

In the present invention, the upright surface of the outer wall of the outer casing exposes the reinforcing portion of the outer wall of the reinforcing metal fitting, and the vertical surface of the protruding wall of the outer casing exposes the reinforcing portion of the protruding wall of the reinforcing metal fitting. Therefore, when the fitting portion of the opposing connector is displaced from the normal fitting position toward the outer wall side during the connector insertion and removal process, the fitting portion abuts against the outer wall standing surface reinforcing portion, and therefore does not directly abut. The vertical surface of the outer wall. Further, when the fitting portion is displaced from the regular fitting position toward the projecting wall side, the fitting portion abuts against the protruding wall erecting surface reinforcing portion, and therefore does not directly abut against the vertical surface of the protruding wall. As a result, damage to both the outer wall and the protruding wall is prevented.

Further, in the present invention, the outer wall upright surface reinforcing portion and the protruding wall vertical surface reinforcing portion are integrally formed by connecting the bottom portions. Therefore, the strength between the outer wall upright reinforcing portion and the protruding wall upright surface reinforcing portion is complementary to each other, thereby enhancing the strength of the reinforcing metal fitting itself, preventing accidental deformation of the reinforcing metal fitting, and the like. As a result, the outer casing can be further firmly strengthened.

In the present invention, the reinforced metal fitting may have a protruding wall top surface reinforcing portion that extends from the opening side end portion of the protruding wall standing surface reinforcing portion and is exposed on the top surface of the protruding wall of the outer casing. The above-mentioned protruding wall top surface reinforcing portion is disposed on the reinforced metal fitting, thereby being in the connector fitting process even if the connector is opposed When the fitting portion is fitted to the top surface side of the protruding wall from the normal fitting position toward the protruding wall side, the fitting portion abuts against the protruding wall top surface reinforcing portion, and therefore does not directly abut the outer casing. The top surface of the protruding wall prevents damage to the protruding wall.

In the present invention, the reinforced metal fitting may have an outer wall top surface reinforcing portion that extends from the opening side end portion of the outer wall upright surface reinforcing portion and is exposed on the top surface of the outer wall of the outer casing. The outer wall top surface reinforcing portion is provided on the reinforcing metal fitting, whereby the fitting portion of the connector abuts from the regular fitting position toward the outer wall side to abut against the top of the outer wall during the connector fitting process. On the surface side, since the fitting portion abuts against the outer wall top surface reinforcing portion, it does not directly abut against the top surface of the outer wall of the outer casing, and damage of the outer wall can be prevented.

In the present invention, the reinforced metal fitting may have a projecting wall-side holding portion that is extended from the opening-side end portion of the protruding wall erecting surface reinforcing portion toward the bottom wall side of the outer casing by the protruding wall top surface reinforcing portion. Further, the reinforced metal fitting may have an outer wall side holding portion that is held by the outer wall top surface reinforcing portion from the opening side end portion of the outer wall standing surface reinforcing portion toward the bottom wall side of the outer casing and held by the outer wall. In this manner, the reinforced metal fitting is held by the holding portion at the protruding wall side and the holding portion at the outer wall side, whereby the reinforced metal fitting can more reliably prevent the abutting force from the fitting portion of the opposing connector. The detachment of the outer casing.

As described above, the present invention provides an outer wall upright reinforcing portion extending along an upright surface of the outer wall of the outer casing and a protruding wall upright reinforcing portion extending along the vertical surface of the protruding wall, and is provided in the reinforcing metal fitting at the connector fitting. In the process, when the fitting portion of the connector is displaced from the normal fitting position toward the outer wall side, the fitting portion abuts against the outer wall upright reinforcing portion, and abuts from the regular fitting position toward the protruding wall side. On the erected surface reinforcement. Therefore, the fitting portion does not directly abut against the vertical surface of the outer wall itself and the vertical surface of the protruding wall itself, thereby preventing damage to both the outer wall and the protruding wall. Further, the outer wall upright surface reinforcing portion and the protruding wall vertical surface reinforcing portion are integrally formed by the connection of the bottom portions, and the strengths of the reinforcing metal fittings themselves are complemented. Therefore, the strength of the reinforcing metal fitting itself can be enhanced, and the outer casing can be further firmly strengthened.

1‧‧‧Connector

24‧‧‧Connecting Department

2‧‧‧ plug connector

30‧‧‧Socket reinforced metal fittings

10‧‧‧ Shell

31‧‧‧End wall inner surface reinforcement (outer wall vertical reinforcement)

11‧‧‧ bottom wall

32‧‧‧End wall top reinforcement (outer wall top reinforcement)

11A‧‧‧ bottom hole

33‧‧‧End wall side holding portion (outer wall side held portion)

12‧‧‧Break

35‧‧‧Bend end face reinforcement (bending wall upright reinforcement)

12A‧‧‧ Signal terminal groove

36‧‧‧The top wall reinforcement

12B‧‧‧Gray section for power terminals

37‧‧‧Blinded side retaining section

14‧‧‧ side wall

38‧‧‧Connect the bottom

15‧‧‧End wall

42‧‧‧Side side fixing part (connection part)

16‧‧‧Acceptance Department

44‧‧‧Power contact wrist

20‧‧‧Socket signal terminal

43‧‧‧ Extension (base)

21‧‧‧ base

45‧‧‧Socket power terminal

22‧‧‧ Signal contact wrist

Fig. 1 is a perspective view showing a socket connector according to an embodiment of the present invention and a plug connector fitted thereto from above, showing a state before the connector is fitted.

Fig. 2(A) is a cross-sectional perspective view of a face at right angles to the connector length direction of the receptacle connector of Fig. 1, and Fig. 2(B) is a connector length with respect to the plug connector of Fig. 1. The cross-sectional perspective view of the plane at right angles indicates the cross section at the center in the longitudinal direction of the connector, the left half shows the state in which the outer casing is omitted, and the lower half of the right half shows the reinforced metal fitting held in the right half.

Fig. 3(A) is a perspective view showing the plug connector of Fig. 1 upside down, and Fig. 3(B) is a perspective view showing the outer casing of the plug connector of Fig. 3(A) omitted.

Figure 4 is a bottom plan view showing a portion of the bottom surface of the socket connector of Figure 1, with the dotted line indicating the socket signal terminal and the socket reinforcing metal fitting.

Fig. 5 is a cross-sectional view showing a surface at right angles to the connector longitudinal direction of the receptacle connector and the plug connector of Fig. 1, showing a cross section of the position of the signal terminal, and Fig. 5(A) showing the connector before fitting. State, Figure 5(B) shows the connector fitting state.

Fig. 6 is a cross-sectional view showing a surface at right angles to the connector in the width direction of the socket connector and the plug connector of Fig. 1, showing a cross section at the center in the width direction of the connector, and Fig. 6(A) showing the connector fitting. In the previous state, the sixth (B) diagram shows the connector fitting state.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

Fig. 1 is a perspective view showing a socket connector according to the present embodiment and a plug connector as a counterpart connector fitted thereto from above, showing a state before the connector is fitted. The receptacle connector 1 and the plug connector 2 of the present embodiment are electrical connectors for circuit boards that are respectively disposed on mounting surfaces of different circuit boards (not shown), and are configured to be at right angles to the mounting surface of each circuit board. The direction (the vertical direction of Fig. 1) is a connector assembly in the insertion and removal direction. In the present embodiment, the direction in which the plug connector 2 of the receptacle connector 1 is fitted, that is, the direction in which the plug connector 2 is moved downward in the first embodiment is the "connector fitting direction", and the opposite direction is set. That is, the direction of the upward direction of the first figure is "the direction in which the connector is pulled out". Moreover, the fitting direction and the insertion and removal direction of the receptacle connector 1 with respect to the opposing connector of the plug connector 2 are respectively the plug connector 2 The opposite direction of "connector fitting direction" and "connector pull-out direction".

[Configuration of the socket connector 1]

The socket connector 1 has a casing 10 having a substantially rectangular parallelepiped shape as shown in Fig. 1, and is integrally molded by a longitudinal direction of the connector (long direction of the casing 10) in one direction parallel to the mounting surface. The plurality of socket signal terminals 20 and the socket reinforcing metal fittings 30 are arranged and held by the outer casing 10. The receptacle connector 1 is placed in a posture shown in Fig. 1 and is mounted on a circuit board.

As shown in Fig. 1, the socket signal terminal 20 is in the range of the projecting wall 12 which will be described later in the longitudinal direction of the connector, and is provided in two rows which are symmetrical in the width direction of the connector. The socket-reinforced metal fitting 30 is disposed on the outer casing 10 at an outer position of the socket signal terminal 20 with respect to the longitudinal direction of the connector. As will be described later, the socket reinforced metal fitting 30 has a socket power terminal 45 as part of the socket reinforced metal fitting 30. As shown in Fig. 1, the socket power terminal 45 is located at both ends of the protruding wall 12 in the longitudinal direction of the connector, and is outside the two ranges of the array of the socket signal terminals 20.

As shown in Fig. 1, the outer casing 10 is made of an electrically insulating material such as resin, and includes a bottom surface parallel to a mounting surface of a circuit board (not shown) on a surface to be mounted, and the length direction of the connector is a bottom wall 11 extending in the longitudinal direction (see FIG. 4); a protruding wall 12 standing upward from the bottom wall 11 in the central portion of the bottom wall 11 in the width direction of the connector and extending toward the length of the connector; The wall 11 is erected to surround the four of the protruding wall 12 Corner frame-shaped surrounding wall 13. The peripheral wall 13 has a pair of side walls 14 extending as an outer wall from the edge of the bottom wall 11 opposed to each other in the width direction of the connector, and a bottom wall 11 opposed from the longitudinal direction of the connector. The rim portion is erected and connects a pair of end walls 15 of the pair of side walls 14 to each other to extend toward the connector width direction as an end wall 15 as an outer wall. A four-corner annular space that opens upward between the peripheral wall 13 and the projecting wall 12 is a receiving portion 16 for forming a fitting portion for receiving the plug connector 2.

As shown in Fig. 4 of the bottom view of the receptacle connector 1, the bottom wall 11 is a terminal position in the longitudinal direction of the connector (the left-right direction of Fig. 4), and is inserted through the connector (right angle with respect to the paper surface). The bottom hole portions 11A are arranged in the longitudinal direction of the connector (see also FIGS. 5(A) and (B)). The bottom hole portion 11A is formed when the outer casing 10 is integrally formed with the socket signal terminal 20 and the socket reinforcing metal fitting 30, and then the mold is removed downward. The bottom hole portion 11A is formed by arranging the bottom hole portions 11A at both ends in the longitudinal direction of the connector at equal intervals (see Fig. 4). The interval between the two bottom hole portions 11A located at both end regions in the longitudinal direction of the connector is narrower than the interval between the other bottom hole portions 11A (see Fig. 4). Moreover, the size of the bottom hole portion 11A at both ends in the longitudinal direction of the connector is smaller than the size of the other bottom hole portion 11A in the width direction of the connector.

5(A) and (B) of the cross-sectional view of the position of the socket signal terminal 20, when the bottom hole portion 11A is displayed from the connector length direction (the direction perpendicular to the paper surface), in the connector width direction (5th ( A) and (B) in the left-right direction of the figure) are formed in a range from a position on the outer side of the side surface of the projecting wall 12 to a position on the outer side of the inner surface of the side wall 14. That is, the bottom hole wall 11A It is a range in which the width direction of the connector is formed outside the contact arm portion 22 of the socket signal terminal 20 which will be described later. The bottom hole portion 11A formed at the position of the socket reinforcing metal fitting 30 in the longitudinal direction of the connector is also formed in a range outside the contact arm portion 33 of the socket power supply terminal 45 which will be described later of the socket reinforcing metal fitting 30. In other words, the bottom wall 11 is closed in the range of the above-mentioned contact arms 22, 44 corresponding to the width direction of the connector. Hereinafter, the socket signal terminal 20 and the outlet power source terminal 45 are collectively referred to as "socket terminals 20, 45" especially when they are not distinguished.

Further, the bottom wall 11 is at a position corresponding to the connection portion 24 of the socket signal terminal 20 and the side fixing portion 42 of the socket reinforcing metal fitting 30, and the bottom surface of the bottom wall 11 is the upper surface and the side fixing portion 42 of the connecting portion 24. The top is joined to the junction. Further, in the position of the bottom wall 11 between the connecting portions 24 and the position between the connecting portion 24 and the side fixing portion 42, the bottom surface of the bottom wall 11 is larger than the upper surface and the side fixing portion 42 of the connecting portion 24. The upper surface is further located above, and a bottom groove portion 11B is formed below the bottom surface (see also FIG. 4).

The protruding wall 12 is such that the position of the socket signal terminal 20 corresponding to the longitudinal direction of the connector causes the signal terminal groove portion 12A, and the position of the corresponding socket power supply terminal 45 is such that the power supply terminal groove portion 12B is from the side of the protruding wall 12. (The surface at right angles to the width direction of the connector) is immersed and extends in the vertical direction (see Figure 5(A), (B)). In the following, the signal terminal groove portion 12A and the power terminal groove portion 12B are collectively referred to as "terminal groove portions 12A and 12B", particularly when they are not distinguished. As shown in the fifth (A) and (B), the terminal groove portions 12A and 12B are spanned. The upright range of 12 is formed over the entire area, open at the upper end position, and the lower end position is closed by the bottom wall 11. The terminal groove portions 12A and 12B are contact arm portions 22 and 44 that accommodate the socket terminals 20 and 45. As shown in Fig. 1, the signal terminal groove portion 12A and the power terminal groove portion 12B are formed in the same groove width dimension (dimension in the connector longitudinal direction).

As shown in Fig. 1, the outer casing 10 has a higher end portion in the longitudinal direction of the connector than a portion in which the socket terminals 20, 30 are arranged. The end portion is an upper portion of the inner surface of the side wall 14 (the surface on the side of the receiving portion 16), and a side guide surface 14A that is inclined downward toward the inside in the connector width direction is formed. The side guide surface 14A guides the plug connector 2 in the connector width direction toward the receiving portion 16 during the connector fitting guiding process.

The upper end surface of the end wall 15 (the surface on the side of the receiving portion 16) is formed with an end guiding surface 15A which is inclined inward in the connector longitudinal direction in the both end regions in the connector width direction. As shown in Fig. 1, the upper edge and the lower edge of the end guiding surface 15A are located at the same height as the upper and lower edges of the side guiding surface 14A. The end guiding surface 15A guides the plug connector 2 in the connector length direction toward the receiving portion 16 in the connector fitting process.

Further, between the side guide surface 14A and the end guide surface 15A, a corner guide surface 10A which is inclined inward in the connector width direction and inward in the connector longitudinal direction is formed. As shown in Fig. 1, the upper edge and the lower edge of the end guiding surface 15A are located at the same height as the upper and lower edges of the side guiding surface 14A and the end guiding surface 15A. The corner guide surface 10A is to guide the plug connector 2 in the connector width direction and the connector length direction toward the receiving portion 16 in the connector fitting process.

Fig. 2(A) is a cross-sectional perspective view of a face at right angles to the connector longitudinal direction of the receptacle connector 1 of Fig. 1, and Fig. 2(B) is a view of the plug connector 2 with respect to Fig. 1. A cross-sectional perspective view of a face at right angles to the length of the device. The second (A) and (B) are cross-sectional views showing the outer casing at the center in the longitudinal direction of the connector, and the left half shows the state in which the outer casing is omitted, and the lower half is held at the lower position of the right half. Strengthen metal fittings. Further, in the left half of the second (A) and (B) drawings, for convenience of explanation, the distance between the terminals larger than the first figure and the distance between the terminals and the reinforcing metal fittings are shown.

Hereinafter, the configuration of the socket signal terminal 20 will be described based on the first, second (B) and fifth (A) drawings. The socket signal terminal 20 has a base portion 21 which is formed by bending a strip-shaped metal strip piece in a thickness direction, and extending toward the connector width direction along the bottom wall 11 of the outer casing; from the protruding wall 12 side of the base portion 21 a signal contact arm portion 22 whose end portion extends upward; a reverse U-shaped held portion 23 that extends upward at an end portion of the base portion 21 on the side wall 14 side and which is folded downward; and a lower end portion of the held portion 23 A connecting portion 24 that extends outward in the width direction of the connector.

As shown in Fig. 5(A), the base portion 21 extends over the range including the receiving portion 16 in the width direction of the connector, and is molded and held by the bottom wall 11 by integral molding. The base portion 21 is exposed to the inside of the receiving portion 16, and is exposed on the circuit board side in a range corresponding to the bottom hole portion 11A of the bottom wall 11. Further, the base portion 21 is formed in the longitudinal direction (connector width direction) The portion having the side of the projecting wall 12 serves as a narrow portion, and the portion on the side of the side wall 14 is a wide portion which is formed to have a wider terminal width (dimension in the longitudinal direction of the connector) than the narrow portion.

As shown in FIG. 4, the base portion 21 is positioned such that the wide portion corresponds to a large portion of the bottom hole portion 11A of the bottom wall 11 in the width direction of the connector, and the narrow portion corresponds to the bottom hole portion 11A. Other parts of the range of positioning. Further, the narrow portion and the wide portion of the base portion 21 are formed such that the terminal width thereof is larger than the bottom hole portion 11A of the bottom wall 11, and both end faces of the base portion 21 and both side edges (extending toward the width direction of the connector) The lower surface (plate surface) of the edge portion is held by the bottom wall 11. Therefore, there is no gap between the both end faces of the base portion 21 (the side end faces extending in the width direction of the connector) and the bottom wall 11, and the bottom hole portion 11A is covered by the lower surface of the base portion 21 and closes the upper end opening thereof. Further, in the range corresponding to the bottom hole portion 11A, the plate surface of the side edge portion of the base portion 21 is not required to be held by the bottom wall 11, and at least the both end faces of the base portion 21 may be held. Further, when the plate surface of the side end portion of the base portion 21 is held by the bottom wall 11, only the upper surface of the side end portion, or both the lower surface and the upper surface may be held.

The signal contact arm portion 22 is housed in the signal terminal groove portion 12A of the projecting wall 12, and is elastically displaceable in the thickness direction (connector width direction). The signal contact arm portion 22 is formed with the same wide dimension (dimension in the longitudinal direction of the connector) as the base portion 21, and is formed with an upper portion smaller than the width of the lower portion. Further, the signal contact arm portion 22 is formed by bending the upper end side portion on the free end side toward the side wall 14 to form a signal contact protrusion for contact with the plug signal terminal 60 of the plug connector 2 to be described later. 22A (see Figure 5(B)). The signal contact arm portion 22 is in a free state, and the curved top portion of the signal contact protrusion 22A is protruded from the signal terminal groove portion 12A of the casing 10 in the receiving portion 16 (see Fig. 5(A)).

As shown in FIG. 2, the held portion 23 has an inner side arm portion 23A extending upward from an end portion of the side wall 14 side of the base portion 21 along the inner surface of the side wall 14, and is continuous from the upper end of the inner side arm portion 23A. The transfer portion 23B that is folded back toward the lower side in the connector width direction from the inner arm portion 23A and the outer arm portion 23C that extends downward through the transfer portion 23B are integrally molded and held by the side wall 14.

The inner arm portion 23A exposes the plate surface toward the inside of the receiving portion 16, and forms a locking recess 23A-1 which is rectangularly recessed from the plate surface. The lock recess 23A-1 is formed, for example, by press working or the like, and its wide size (dimension in the above-described arrangement direction) is smaller than the width of the inner arm portion 23A. The lock recess 23A-1 is locked to the locked segment portion 61A-1 of the plug signal terminal 60 of the plug connector 2 to be described later, thereby maintaining the connector fitting state to prevent the connectors from being detached from each other and being locked thereto. When the segment portion 61A-1 is engaged, the contact is made conductive, and the function of the signal contact protrusion 22A may be assisted (see Fig. 5(B)).

The transfer portion 23B is convexly curved upward, and the upper surface of the transfer portion 23B is exposed from the side wall 14. The outer wrist portion 23C is not exposed from the side wall 14 but is embedded in the side wall 14 (see also FIG. 5(A)). The outer wrist portion 23C is clearly shown in Fig. 2(B), and the lower end portion is formed to be smaller than the width of the other portion (the size in the above-described arrangement direction).

The connecting portion 24 is located below the base portion 21, from the outside The lower end of the side arm portion 23C extends linearly outward in the connector width direction to substantially the same position as the outer surface of the side wall 14, and is exposed from the bottom wall 11 of the outer casing 10. The connecting portion 24 is soldered to the corresponding signal circuit portion of the circuit board.

In the present embodiment, as described above, the front end position of the connecting portion 24 in the width direction of the connector is provided at substantially the same position as the outer surface of the side wall 14, thereby preventing the size of the socket connector 1 in the connector width direction from increasing. Further, as described above, the bottom groove portion 11B is formed in the bottom wall 11 of the outer casing 10 at a position between the connecting portions 24. Therefore, at the time of soldering connection, the molten solder flows into the bottom groove portion 11B, whereby the both end faces of the connecting portion 24 (the side faces extending in the width direction of the connector) can be soldered. As a result, in the present embodiment, it is possible to avoid an increase in size of the connector in the connector width direction, and it is possible to sufficiently ensure a wide area of the solderable connection portion in the connection portion 24.

Next, the configuration of the socket-reinforced metal fitting 30 will be described based on the first and second (B) drawings. In the present embodiment, the socket-reinforced metal fitting 30 not only has the function of reinforcing the outer casing 10, but also functions as a locking metal fitting and functions as a power supply terminal, as will be described later. However, the socket reinforcing metal fitting 30 has a function as a locking metal fitting and is not required as a power supply terminal.

The socket reinforcing metal fitting 30 is formed by bending a metal plate member toward a plate thickness direction, and is a portion provided at a position of the end wall 15 from the upper side; a portion disposed at a position of the projecting wall 12; Each part of each position of 14; and a portion disposed at the position of the receiving portion 16 Big difference.

The portion of the socket-reinforced metal fitting 30 that is disposed at the position of the end wall 15 has an end wall inner surface reinforcing portion 31 extending along the inner surface of the end wall 15, and from the upper end of the inner wall reinforcing portion 31 of the end wall An end wall top surface reinforcing portion 32 that is folded back; an end wall side held portion 33 that extends downward along the outer surface of the end wall 15 via the end wall top surface reinforcing portion 32; and an inner surface of the end wall in the width direction of the connector The proximal end positions of the reinforcing portion 31 are end-fixed portions 34 extending outward from the lower end of the end wall inner surface reinforcing portion 31 toward the longitudinal direction of the connector.

The end wall inner surface reinforcing portion 31 is such that the lower half extends across the entire area of the end wall 15 in the width direction of the connector, and the upper half is in the central portion of the lower half connector width direction upward from the upper edge of the lower half Square extension. As shown in Fig. 1 and Fig. 2(B), the plate surface of the end wall inner surface reinforcing portion 31 is exposed to protrude from the inner surface of the end wall 15. The end wall top surface reinforcing portion 32 is formed in the same width dimension (dimension in the connector width direction) as the upper half portion of the end wall inner surface reinforcing portion 31, and is convexly curved upwardly from the upper half portion so that the upper end portion is convexly curved upward. The upper portion protrudes above the end wall 15. The end wall side held portion 33 is formed in the same width as the end wall top surface reinforcing portion 32, and extends continuously with the end wall top surface reinforcing portion 32 so that the plate surface protrudes from the outer surface of the end wall 15. In the present embodiment, the end wall inner surface reinforcing portion 31 and the end wall top surface reinforcing portion 32 respectively cover the inner surface of the end wall 15 and the upper surface thereof. Therefore, the inner end of the end wall 15 can be prevented during the connector insertion and removal process. The damage caused by the interference of the surface and the plug connector 2 above.

The end fixing portion 34 is as shown in Fig. 1 from the outer casing 10 The bottom wall 11 is exposed, and is soldered and fixed to the corresponding power supply circuit portion of the circuit board on the lower surface thereof. The end fixing portion 34 extends at substantially the same position as the outer surface of the end wall 15 in the longitudinal direction of the connector. In this manner, the front end position of the end fixing portion 34 is provided at substantially the same position as the outer surface of the end wall 15, thereby avoiding an increase in the size of the socket connector 1 in the longitudinal direction of the connector.

The portion of the socket-reinforced metal fitting 30 that is disposed at the position of the projecting wall 12 is as shown in Fig. 1 and has an end surface extending along a vertical surface of the projecting wall 12 (a surface at right angles to the longitudinal direction of the connector). a protruding wall end surface reinforcing portion 35; a protruding wall top surface reinforcing portion 36 which is folded downward from an upper end of the protruding wall end surface reinforcing portion 35; a protruding wall side holding portion 37 extending downward through the protruding wall top surface reinforcing portion 36; A power source that extends upward in the power supply terminal groove portion 12B of the protruding wall 12 from the extending portion 43 to be described later contacts the arm portion 44.

The protruding end surface reinforcing portion 35 and the protruding wall top surface reinforcing portion 36 are held by the protruding wall 12, and the respective plate surfaces are exposed to the same surface surface as the end surface of the protruding wall 12 and the upper surface (top surface). In the present embodiment, the protruding end surface reinforcing portion 35 and the protruding wall top surface reinforcing portion 36 respectively cover the end faces of the protruding wall 12 and the upper surface thereof. Therefore, during the insertion and removal of the connector, the end surface of the protruding wall 12 can be prevented and the upper surface thereof Damage caused by interference of the plug connector 2.

The power contact wrist portion 44 is formed in the same position as the signal contact wrist portion 22 of the socket terminal 20, and is elastically displaced in the thickness direction (connector width direction), and is a corresponding power supply contact portion provided in the plug reinforcing metal fitting 70 to be described later. The inner side plate portion 73 (see Fig. 2(A)) can be in contact with the pressure contact (see Fig. 5(B)). The power contact wrist 44 will be its own The upper end side portion on the end side is convexly curved toward the side wall 14, and the convexly bent portion is formed as a power contact projection 44A for contact with the inner side plate portion 73. The power contact wrist portion 44 is in a free state, and the curved top portion of the power supply contact projection 44A is protruded from the power terminal groove portion 12B of the outer casing 10 and positioned in the receiving portion 16. Further, when the socket reinforcing metal fitting 30 does not have a function as a power supply terminal, the power supply contact arm portion 44 is omitted.

The portion of the socket-reinforced metal fitting 30 that is disposed at the position of the side wall 14 has a side wall extending from the both ends in the width direction of the lower half of the inner wall reinforcing portion 31 of the end wall along the side wall 14 toward the longitudinal direction of the connector. a side holding portion 39; a transfer portion 40 that is folded downward from the upper edge of the holding portion 39 on the side wall side; a lock plate portion 41 that extends downward along the inner surface of the side wall 14 via the transfer portion 40; and from the side wall side The lower fixing edge of the holding portion 39 is a side fixing portion 42 that extends outward in the connector width direction.

The side wall side held portion 39 is buried and held by the side wall 14. The transfer portion 40 is convexly curved upward, and as shown in Fig. 1, the upper surface thereof is exposed to the same plane as the upper surface of the side wall 14. The lock plate portion 41 is held by the side wall 14 in a state in which the plate surface on the side of the receiving portion 16 is exposed from the inner surface of the side wall 14, and a locking concave portion 41A in which the plate surface exposed therefrom is formed in a rectangular shape is formed. Further, in the case where the socket reinforcing metal fitting 30 does not have a function as a locking metal fitting, the locking plate portion 41 may be omitted.

As shown in Fig. 1, the side fixing portion 42 is exposed from the bottom wall 11 of the casing 10, and is fixed to the lower surface of the casing 10 by soldering and soldering to the corresponding power supply circuit portion of the circuit board, and is also provided as a power supply terminal 42 to be described later. The function of the joint. The side fixing portion 42 extends in the connector width direction to substantially the same position as the outer surface of the side wall 14. In the present embodiment, as described above, the front end position of the side fixing portion 42 in the width direction of the connector is set to be substantially the same as the outer surface of the side wall 14, thereby preventing the size of the socket connector 1 in the connector width direction from increasing. Further, a position between the side fixing portion 42 adjacent to each other in the longitudinal direction of the connector and the connecting portion 24 of the socket signal terminal 20 is such that a bottom groove portion 11B is formed in the bottom wall 11 of the outer casing 10, and in the solder joint, The molten flux flows into the bottom groove portion 11B to be welded to the side end surface of the side fixing portion 42. As a result, it is possible to avoid an increase in the size of the connector in the width direction of the connector, and the connection portion 24 can secure the area of the portion to which the solder can be soldered.

The portion of the socket-reinforced metal fitting 30 that is disposed at the position of the receiving portion 16 has a length extending along the bottom wall 11 toward the connector, and the lower end portions of the connecting end wall inner surface reinforcing portion 31 and the protruding wall end surface reinforcing portion 35 are mutually Connecting the bottom portion 38 (see also FIGS. 6(A) and (B)), and extending along the bottom wall 11 toward the connector width direction, connecting the power supply contact arm portion 44 and the lower end portion of the locking plate portion 41 to each other 43. The connection bottom portion 38 and the extension portion 43 are held by the bottom wall 11 in a state where the upper surface thereof is exposed to the receiving portion 16. Further, when the socket reinforcing metal fitting 30 does not have a function as a power supply terminal, the extending portion 43 may be omitted.

The extending portion 43 extends from the lower edge of the lock plate portion toward the projecting wall 12 in the same terminal width direction as the lock plate portion 41. Further, the power contact wrist portion 44 is close to the edge of the projecting wall 12 from the extending portion 43 at the same position as the power terminal groove portion 12B of the protruding wall 12 in the longitudinal direction of the connector. The portion (the edge extending toward the longitudinal direction of the connector) extends upward. Hereinafter, the portion where the extension portion 43 and the power source contact arm portion 44 are formed is referred to as "power supply terminal 45". In the present embodiment, the power supply terminal 45 is described as an example of forming the socket-reinforced metal fitting 30. However, the power supply terminal and the socket-reinforced metal fitting may be replaced by a separate member.

The extension portion 43 is a base portion that forms the power source terminal 45. The extension portion 43 extends in the connector width direction across the range including the receiving portion 16 in the same manner as the base portion 21 of the socket signal terminal 20 (see, for example, the fifth portion (A), (B) of the base portion 21 of the socket signal terminal 20. )))). Further, as shown in Fig. 4, which is indicated by a broken line, the extending portion 43 is formed to include a range of two bottom hole portions 11A which are located at both end portions corresponding to the longitudinal direction of the connector, and both end faces and both side edges of the extending portion 43 are formed. The lower surface (plate surface) of the portion (the edge extending toward the width direction of the connector) is held by the bottom wall 11. Therefore, there is no gap between the end faces of the extending portions 43 (the side end faces extending toward the width direction of the connector) and the bottom wall 11, and the upper end openings of the two bottom hole portions 11A are borrowed from the lower surface of the extending portion 43. Covered and closed.

The receptacle connector 1 constructed as above is manufactured as follows. First, the socket signal terminal 20 and the socket reinforcing metal fitting 30 are arranged in the longitudinal direction of the connector. Next, the socket signal terminal 20 and the socket reinforcing metal fitting 30 are pushed from below by a mold (referred to as "upper mold") formed from above and by a mold formed from below (referred to as "lower mold") Press fixed. At this time, the upper mold and the lower mold are pushed and pressed into the base portion 21 of the socket signal terminal 20 and the upper and lower surfaces of the extending portion 43 of the socket reinforcing metal fitting 30.

However, when a plurality of terminals having the same terminal width are molded by one-piece molding and held by the outer casing, conventionally, when the terminals are pressed by the mold at the time of integral molding, most of the terminals are pressed by the same area. However, when the base of one of the plurality of terminals is wider than the base of the other terminal, it is pressed by the same area as the pressing area of the base of the other terminal (the area pressed by the die). When one of the base portions of the terminal portion is formed, the posture of the portion of the terminal at the time of integral molding is unstable.

In the present embodiment, the extension portion 43 of the socket-reinforced metal fitting 30 is wider than the base portion 21 of the socket signal terminal 20, but the extension portion 43 is pressed by the mold to a plurality of positions in the longitudinal direction of the connector (this embodiment) In two places, the pressing area is substantially the same as the sum total area of the two bottom hole portions 11A. Therefore, as compared with the case where the wide portion extension portion 43 is pressed in one place by the area of one bottom hole portion 11A, the number of pressing portions is increased, and the pressing area is widened, so that the socket reinforcement can be made when the integral molding is formed. The posture of the metal fitting 30 is more stable.

Further, in the present embodiment, the bottom wall 11 is closed in a region other than the bottom hole portion 11A of the plurality (two in the present embodiment) in the region corresponding to the extending portion 32, and the extension is maintained by the bottom wall 11. Part 32. Therefore, when a large pressing area at the time of integral molding is formed and a region of a substantially full area extending across the extending portion is formed in the bottom wall to ensure the stability of the terminal, the corresponding extending portion 32 can be enlarged. The strength of the outer casing 10 of the area.

Next, inject the tree into the upper and lower molds after the combination. The grease is integrally molded with the socket signal terminal 20 and the socket reinforcing metal fitting 30 and the outer casing 10, thereby being held by the outer casing 10. In the present embodiment, when the socket signal terminal 20 and the socket reinforcing metal fitting 30 are integrally displayed by the connector, the mold is pressed at a plurality of positions at substantially equal intervals, so that the resin can flow uniformly across the entire connector.

After the integral mold is formed, the upper mold and the lower mold are moved upward and downward, respectively, to be removed, thereby completing the socket connector 1. At this time, the lower mold is pulled downward, as shown in the fifth (A) and (B), the terminal groove in the connector length direction, and the terminal groove of the protruding wall 12 in the width direction of the connector. The bottom portions 11A are formed on the outer wall 11 of the portions 12A and 12B. A bottom groove portion 11B is formed at a position between the connection portion 24 of the socket signal terminal 20 and a position between the side fixing portion 42 of the socket reinforcing metal fitting 30 and the connecting portion 24.

In the present embodiment, the terminal groove portions 12A and 12B of the projecting wall 12 are formed over the entire vertical range of the projecting wall 12, and are open upward at the upper surface (top surface) of the projecting wall 12. Therefore, the upper mold is moved from above to be disposed, and the protruding wall 12 having the terminal groove portions 12A and 12B can be formed. Therefore, the terminal position in the longitudinal direction of the connector can be in the range of the terminal groove portions 12A and 12B in the width direction of the connector, in other words, in the socket terminal corresponding to the terminal groove portions 12A and 12B. The range of the contact arms 22, 44 of 20, 45 forms the bottom wall 11.

When the socket connector 1 of the mounting surface of the circuit board is mounted, the connection portion 24 of the socket signal terminal 20 or the socket is reinforced with metal When the side fixing portion 42 of the member 30 is soldered to the mounting surface, the molten flux flows between the bottom wall 11 of the casing 10 and the mounting surface toward the contact arm portions 22, 44 of the socket terminals 20, 45. However, in the present embodiment, the range corresponding to the contact arm portions 22, 44 is such that the bottom wall 11 is closed, so that the molten solder does not climb up to the surface of the contact wrist portion.

Further, although the bottom hole 11 is formed with the bottom hole portion 11A, all the bottom hole portions 11A are closed by the base portion 21 of the socket signal terminal 20 or the extension portion 43 of the socket power terminal 45, so that even if the molten solder is from the above The mounting surface side flows into the bottom hole portion 11A, and the flux is also prevented from being advanced by the bottom surface of the base portion 21 and the extending portion 43 and staying in the bottom hole portion 11A, so that the contact portion 22A is not climbed. side.

Further, when the applicator is applied to the solder joint after the connector is mounted, as in the case of the above-described soldering, the paint is prevented from climbing to the side of the contact portions 22 and 44. As a result, the flux or the paint agent is prevented from adhering to the contact arm portions 22 and 44, and the elastic displacement state of the contact wrist portions 22 and 44 or the contact state with the opposite terminal can be satisfactorily ensured.

[Configuration of Plug Connector 2]

Next, the configuration of the plug connector 2 will be described based on the first, second (A), third, and fifth figures. Fig. 3(A) is a perspective view showing the plug connector 2 of Fig. 1 upside down, and Fig. 3(B) is a perspective view showing the outer casing 50 of the plug connector 2 of Fig. 3(A) omitted. .

The plug connector 2 has a frame-shaped fitting portion suitable for the receiving portion 16 of the receptacle connector 1 (see FIG. 3(A)) by which the fitting portion is The connectors 1 and 2 are fitted into each other in the receiving portion 16. The plug connector 2 has a casing 50 having a substantially rectangular parallelepiped shape, and is integrally molded by the casing 50 in a longitudinal direction of the connector (long direction of the casing 50) parallel to a mounting surface of a circuit board (not shown). The plurality of plug signal terminals 60 and the plug reinforced metal fitting 70 are held in this arrangement.

The outer casing 50 is made of an electrically insulating material such as a resin. As shown in Fig. 1, the outer casing 50 is provided with a bottom surface that is parallel to the mounting surface of the circuit board (not shown) of the mounting target surface and extends in the longitudinal direction of the connector. The wall 51 and the peripheral wall 53 which is a fitting portion are erected downward from the bottom wall 51 (upward in the third (A) diagram). The peripheral wall 53 has two side walls 54 extending toward each other in the arrangement direction, and end portions connecting the two side walls 54 toward the connector width direction at right angles to the connector length direction (short direction of the outer casing 50) Two end walls 55 extend. The space which is surrounded by the surrounding wall 53 and which is opened below the first drawing (above in the third (A) diagram) is a receiving portion 56 for forming the protruding wall 12 of the socket connector 1 (see FIG. 3(A)). .

As shown in Figs. 1 and 3(A), the bottom wall 51 is formed with an overhanging portion 51A in which the entire side wall 54 extending in the longitudinal direction of the connector projects outward in the connector width direction. The overhanging portion 51A is positioned corresponding to the transfer portion 23B of the socket terminal 20 and the transfer portion 40 of the socket reinforcing metal fitting 30 (see FIG. 5(B) for the positional relationship with the transfer portion 23B of the socket terminal 20). As clearly shown in Fig. 3(A), the upper surface of the overhanging portion 51A is located higher than the upper surface of the connecting portion 62 of the plug signal terminal 60 and the side fixing portion 74 of the plug reinforcing metal fitting 70, which will be described later. The overhanging portion 51A having the above shape is provided, whereby the connecting portion 62 and the side fixing portion 74 are provided At the time of solder mounting, even if the molten flux flows inward in the width direction of the connector, it can be prevented from advancing by the side surface of the overhanging portion 51A (the surface at right angles to the width direction of the connector). That is, the molten solder does not flow into the position corresponding to the transfer portions 23B, 40 in the width direction of the connector.

Conventionally, the plug connector does not have a casing portion in a range corresponding to the transfer portion of the socket terminal in the width direction of the connector, and is caused by molten solder flowing into the above range during soldering connection, and the flux hardened in the above range when the connector is fitted. There will be a problem of interference with the above-mentioned transfer unit. In the present embodiment, as described above, the molten solder flows into the above range by the overhanging portion 51A of the outer casing 50. Therefore, when the connector is fitted, interference between the hardened solder and the transfer portions 23B and 40 can be prevented.

The plug signal terminal 60 is in the near center of the outer casing 50 in the longitudinal direction of the connector, and is arranged symmetrically in two rows in the width direction of the connector. The plug signal terminal 60 is formed by bending a strip-shaped metal strip piece in a thickness direction, as clearly shown in FIGS. 2(A) and 3(B), and has a U-shaped shape held on the side wall 54. The U-shaped portion 61 and the upper end of the second (A) figure of one of the wrist portions (the inner inner arm portion 61C to be described later) on the side of the receiving portion 56 from the two wrist portions of the U-shaped portion 61 (At the lower end of the third figure (B)), it extends outward in the width direction of the connector and is connected to the connecting portion 62 of the corresponding signal circuit portion of the circuit board. The plug signal terminal 60 is a U-shaped portion 61 and is held by molding integrally with the outer casing 50.

The U-shaped portion 61 is a portion in which the connector of the socket signal terminal 20 of the receptacle connector 1 contacts the wrist portion 22 and the inner wrist portion 23A in the state in which the connector is fitted, from below (in the third (A), (B) above the figure) The side wall 54 is buried in the side wall 54. The U-shaped portion 61 is clearly shown in Fig. 2(A) and has an outer wrist portion 61A extending downward along the outer surface of the side wall 54. The lower end of the outer wrist portion 61A is positioned upward in the connector width direction. The transition portion 61B that is folded back; and the inner wrist portion 61C that extends upward through the transition portion 61B. The size of the U-shaped portion 61 in the width direction of the connector is such that a number of intervals between the signal contact projection 22A larger than the socket signal terminal 20 and the inner surface of the inner wrist portion 23A opposite to the signal contact projection 22A are formed.

The outer wrist portion 61A of the U-shaped portion 61 is as shown in Fig. 1, and the plate surface is exposed from the outer surface of the side wall 54. The exposed plate surface is formed with a segmented portion formed by the upper portion of the plate surface and extending toward the width direction (connector length direction) of the outer wrist portion 61A, the locked segment The portion 61A-1 is formed to be locked with the locking recess 23A-1 of the socket terminal 20. The transfer portion 61B extends in the width direction of the connector as shown in the second (A) view, so that the lower surface of the transfer portion 61B (the upper surface of the third (A) is exposed) is exposed from the side wall 54. The inner arm portion 61C is shown in Fig. 3(A), and the plate surface on the receiving portion 56 side is exposed from the inner surface of the side wall 54, and the exposed plate surface is formed to be in contact with the connector and the socket and the socket signal. The signal of the terminal 20 contacts the corresponding signal contact portion of the protrusion 22A.

As shown in the second (A), the connecting portion 62 extends linearly outward from the upper end of the inner arm portion 61C along the bottom surface of the bottom wall 51 toward the outer side in the connector width direction, and extends out of the outer casing 50 (see also the first Figure), can be soldered to the corresponding signal circuit portion of the circuit board.

The plug reinforced metal fitting 70 is as shown in Fig. 1, corresponding The socket reinforcing metal fitting 30 of the receptacle connector 1 is provided at each end of the outer casing 10 in the longitudinal direction of the connector. The plug reinforced metal fitting 70 not only has the function of reinforcing the outer casing 50, but also has a locking function for locking with the socket reinforcing metal fitting 30, and has a power contact terminal with the power contact wrist portion 44 of the socket reinforcing metal fitting 30 as an electrically conductive power terminal. Features. However, it is not essential that the plug-reinforced metal fitting 70 has a function as a lock metal fitting and functions as a power supply terminal.

The plug reinforced metal fitting 70 is formed by bending a metal plate member in a plate thickness direction, and as shown in FIG. 2(A), has an outer plate portion 71 extending along an outer surface of the side wall 54 of the outer casing 50; from the outer side plate a lower side end portion of the portion 71 extending toward the inner side in the width direction of the connector; an inner side plate portion 73 extending upward along the inner surface of the side wall 54 via the side transfer portion 72; and an upper end portion of the inner side plate portion 73 a side fixing portion 74 that extends outward in the width direction of the connector; a connecting portion 75 that connects the two inner plate portions 73 to each other in the width direction of the connector; and a position from the lower edge of the connecting portion 75 to the outer side in the longitudinal direction of the connector An end-retracted end transfer portion 76; an end-retained portion 77 extending upward along the outer surface of the end wall 55 via the end transfer portion 76; and an end extending outward from the upper edge of the joint portion 75 toward the longitudinal direction of the connector Fixing portion 78.

The outer plate portion 71 is as shown in the second (A) view, and the plate surface is exposed from the outer surface of the side wall 54. The exposed plate surface is formed with a segment shape formed by the upper portion of the plate surface and facing the outer plate portion. The locked segment portion 71A extends in the width direction (connector length direction) of 71. The locked segment portion 71A is a locked segment formed on the outer side wrist portion 61A of the plug signal terminal 60. The position of the portion 61A-1 at the same height. The locked segment portion 71A is fitted to the receptacle connector 1, and is locked to the lock recess 41A of the socket reinforcing metal fitting 30.

The side transfer portion 72 extends in the connector width direction along the lower surface of the side wall 54 (the upper side in FIG. 3(A)), and the lower surface of the side transfer portion 72 (the upper side in FIG. 3(A)) is the side wall. 54 exposed (see Figure 3(A)). The inner side plate portion 73 is shown in Fig. 3(A), and the plate surface is exposed from the inner surface of the side wall 54, and is formed as a corresponding power source contact portion that comes into contact with the power contact wrist portion 44 of the socket reinforcing metal fitting 30 with a contact pressure.

The side fixing portion 74 is extended from the upper end of the inner side plate portion 73 (the lower end of the third (A) and (B) drawings) toward the connector width direction as shown in the second (A) view, as shown in FIG. 1 and The second (A) diagram shows that the outer casing 50 is extended and can be soldered to the corresponding circuit portion of the circuit board.

As shown in FIG. 2(A), the connecting portion 75 includes a connecting base portion 75A having a plate surface that is perpendicular to the longitudinal direction of the connector and extending in the width direction of the connector, and is bent at both ends of the connecting base portion 75A. A joint end portion 75B that extends inward in the longitudinal direction of the connector. The connecting portion 75 is embedded and held by the end wall 55.

The end transfer portion 76 extends along the lower surface of the end wall 55 (the upper side in Fig. 3(A)) toward the width direction of the connector, and the lower portion of the end transfer portion 76 (the upper portion of Fig. 3(A) is the upper side) It is exposed from the end wall 55 (see Fig. 3(A)). The end held portion 77 is held by the end wall 55, and as shown in Figs. 1 and 3(A), the plate surface is exposed from the outer surface of the end wall 55. The end fixing portion 78 is as shown in Fig. 1, from the bottom wall 51 of the outer casing 50 toward the length of the connector The protrusion is formed on the upper surface (the third (A) is a lower surface) and is soldered and fixed to the corresponding portion of the circuit board.

[Mixed action of connector]

Next, the fitting operation of the connectors 1 and 2 will be described based on the first, fifth, and sixth figures. Fig. 5 is a cross-sectional view showing a surface at right angles to the connector longitudinal direction of the receptacle connector 1 and the plug connector 2 of Fig. 1, showing a cross section of the position of the signal terminal, and Fig. 5(A) showing the connector fitting. In the previous state, the fifth (B) diagram shows the connector fitting state. Fig. 6 is a cross-sectional view showing a surface at right angles to the connector in the width direction of the socket connector and the plug connector of Fig. 1, showing a cross section at the center in the width direction of the connector, and Fig. 6(A) showing the connector fitting. In the previous state, Fig. 6(B) shows the connector fitting state.

First, the connection portion 24 of the socket signal terminal 20 of the socket connector 1 and the side fixing portion 42 of the socket reinforcement metal fitting 30 are respectively soldered to the corresponding circuit portions of the circuit board, and the ends of the socket reinforcement metal fittings 30 are fixed. The portion 34 is soldered to the corresponding portion of the circuit board, and the socket connector 1 is mounted on the circuit board. Further, the connecting portion 62 of the plug signal terminal 60 of the plug connector 2 and the side fixing portion 74 of the plug reinforcing metal fitting 70 are respectively soldered to the corresponding circuit portions of the other circuit boards, and the ends of the plug reinforcing metal fittings 70 are attached. The fixing portion 78 is soldered to the corresponding portion of the other circuit board, and the plug connector 2 is attached to the other circuit board. Further, a coating agent for preventing corrosion may be applied to each of the solder joint portions of the receptacle connector 1 and the plug connector 2 as needed.

Next, as shown in FIG. 1, FIG. 5(A) and FIG. 6(A), the socket connector 1 is in a posture in which the receiving portion 16 is opened upward, and the plug connector 2 is opened to the receiving portion 56 downward. The posture is positioned above the socket connector 1. Further, as shown in FIGS. 1 , 5 (A), and 6 (A), the socket connector 2 is moved downward, and the fitting portion of the plug connector 2 is fitted into the socket connector 1 . Within section 16.

As a result, the U-shaped portion 61 of the plug signal terminal 60 of the plug connector 2 pushes in between the signal contact projection 22A of the receptacle signal terminal 20 of the receptacle connector 1 and the locking recess 23A-1. Further, the signal contact arm portion 22 is elastically displaced inward in the connector width direction. When the projection of the U-shaped portion 61 is performed, as shown in Fig. 5(B), in the connector fitting state, the signal contact projection 22A is the contact pressure and the inner wrist portion 61C of the U-shaped portion 61 (corresponding to The signal contact portion is in contact with, and the locked segment portion 61A-1 of the outer wrist portion 61A of the U-shaped portion 61 protrudes into the locking recess portion 23A-1, and is locked in the locking recess portion 23A in the connector pulling direction. The upper edge of 1. As a result, the terminals 20, 60 of the connectors 1, 2 can be electrically connected and locked to each other.

Further, the power source contact protrusion 44A of the socket reinforcing metal fitting 30 is in contact with the inner side plate portion 73 (corresponding to the power source contact portion) of the plug reinforcing metal fitting 70 which is positioned corresponding to the power source contact arm portion 44 by the contact pressure. In the connector fitting state, the locked portion 71A of the plug reinforcing metal fitting 70 protrudes into the locking recess 41A of the socket reinforcing metal fitting 30, and can be locked in the upper edge of the locking recess 41A in the connector pulling direction. As a result, the electrical conduction reinforcing metal fittings 30, 70 are locked to each other. in this way First, the fitting and connecting operation of the connectors 1 and 2 is completed. Further, when the connector is pulled out, the plug connector 2 is lifted upward to release the terminals, and the metal fittings are locked to each other, whereby the plug connector 2 can be pulled out.

In the present embodiment, the plate surface of the end wall inner surface reinforcing portion 31 of the socket reinforcing metal fitting 30 is exposed on the inner surface of the end wall 15 of the outer casing 10, and the surface of the protruding end surface reinforcing portion 35 of the socket reinforcing metal fitting 30 is provided. It is an end surface of the projecting wall 12 exposed to the outer casing 10. Therefore, in the connector insertion and removal process, when the fitting portion of the plug connector 2 is deviated from the regular fitting position toward the end wall 15 in the longitudinal direction of the connector, the fitting portion abuts against the inner wall reinforcing portion of the end wall. The plate surface of 31 does not directly abut the inner surface of the end wall 15. Further, when the fitting portion is displaced from the regular fitting position toward the protruding wall 12 side in the longitudinal direction of the connector, the fitting portion abuts against the plate surface of the protruding end surface reinforcing portion 35, and thus does not protrude from the protruding wall. The end faces of 12 are directly abutted. As a result, damage to the end wall 15 and the projecting wall 12 can be prevented.

Further, in the present embodiment, the plate surface of the end wall top surface reinforcing portion 32 is exposed on the top surface of the end wall 15 of the outer casing 10, and the plate surface of the protruding wall top surface reinforcing portion 36 is exposed to the projecting wall 12 of the outer casing 10. The top surface. Therefore, even in the connector fitting process, even if the fitting portion of the plug connector 2 is deviated from the regular fitting position in the connector length direction toward the end wall 15 side, the fitting portion abuts against the top surface side of the end wall 15. At this time, since the fitting portion abuts against the end wall top surface reinforcing portion 32, it does not directly abut against the top surface of the end wall 15 of the outer casing 10. Further, in the connector fitting process, even if the fitting portion of the plug connector 2 is biased from the regular fitting position toward the projecting wall 12 in the longitudinal direction of the connector When the fitting is in contact with the top surface side of the projecting wall 12, the fitting portion abuts against the protruding wall top surface reinforcing portion 36, and therefore does not directly abut against the top surface of the protruding wall 12 of the outer casing 10. Damage to the end wall 15 and the projecting wall 12 can be more reliably prevented. Furthermore, it is not necessary to provide the end wall top surface reinforcing portion 32 and the protruding wall top surface reinforcing portion 36 in the socket reinforcing metal fitting 30, and only the end wall top surface reinforcing portion 32 and the protruding wall top surface reinforcing portion may be provided. One of the 36.

Further, the socket-reinforced metal fitting 30 of the present embodiment is held by the end wall 15 by the end wall-side holding portion 33, and is held by the projecting portion 37 at the projecting wall portion 37, so that the connector can be inserted and removed. It is surely prevented that the socket reinforcing metal fitting 30 is detached from the outer casing 10 by the abutting force from the fitting portion of the plug connector 2. In addition, the end wall side holding portion 33 and the protruding wall side holding portion 37 are not required to be provided in the socket reinforcing metal fitting 30, and only the end wall side held portion 33 and the protruding wall side held portion may be provided. One of the 37.

Further, in the present embodiment, the end wall inner surface reinforcing portion 31 and the protruding wall end surface reinforcing portion 35 are integrally formed by being connected to the connecting bottom portion 38, and the end wall inner surface reinforcing portion 31 and the protruding wall end surface reinforcing portion 35 are formed to each other. The relationship of the complementary strengths can increase the strength of the socket-reinforced metal fitting 30 itself, prevent accidental deformation of the socket-reinforced metal fitting 30, and the like, and can further strengthen the outer casing 10 firmly.

In the present embodiment, the end wall inner surface reinforcing portion 31 and the protruding wall end surface reinforcing portion 35 of the socket reinforcing metal fitting 30 are connected to the connection bottom portion 38 to prevent the connectors in the longitudinal direction of the connector from being deviated from each other to cause damage to the outer casing 10, and Increase the strength of the socket reinforced metal fitting 30 itself, However, the configuration of the socket reinforcing metal fitting 30 can be further changed. For example, the socket reinforced metal fitting may be provided with a side wall inner surface reinforcing portion extending along the inner surface of the side wall of the outer casing as a reinforcing portion of the inner wall of the side wall, and an inner surface reinforcing portion along the side wall. The vertical surface (side surface) of the protruding wall of the opposite outer casing extends as a protruding side surface reinforcing portion of the protruding wall vertical surface reinforcing portion of the protruding wall, and the side wall is connected by a connecting bottom extending along the bottom wall toward the width direction of the connector The lower end of the inner surface reinforcing portion and the protruding side surface reinforcing portion are mutually connected. With the above configuration, the connectors in the width direction of the connector are prevented from deviating from each other to cause damage to the outer casing, and the strength of the socket reinforcing metal fitting itself can be improved.

In the present embodiment, an example has been described in which the present invention is applied to a receptacle connector 1 having two kinds of terminals of a socket signal terminal and a socket power supply terminal. However, the present invention can also be applied to a terminal having only one type of terminal.

In the present embodiment, the description has been made on the case where the groove portion of the contact arm portion in which the terminal is accommodated is formed in the projecting wall. However, the present invention can also be applied to the case where the groove portion is formed on the side wall. At this time, the bottom wall is formed in a range in which the terminal position in the longitudinal direction of the connector includes the groove portion corresponding to the side wall.

1‧‧‧Connector

2‧‧‧ plug connector

10‧‧‧ Shell

12‧‧‧Break

15‧‧‧End wall

16‧‧‧Acceptance Department

20‧‧‧Socket signal terminal

30‧‧‧Socket reinforced metal fittings

31‧‧‧End wall inner surface reinforcement (outer wall vertical reinforcement)

32‧‧‧End wall top reinforcement (outer wall top reinforcement)

33‧‧‧End wall side holding portion (outer wall side held portion)

34‧‧‧End fixed section

35‧‧‧Bend end face reinforcement (bending wall upright reinforcement)

36‧‧‧The top wall reinforcement

37‧‧‧Blinded side retaining section

38‧‧‧Connect the bottom

50‧‧‧ Shell

51‧‧‧ bottom wall

55‧‧‧End wall

56‧‧‧Receiving Department

60‧‧‧plug signal terminal

70‧‧‧ Plug reinforced metal fittings

75‧‧‧Connecting Department

76‧‧‧End Transfer Department

77‧‧‧Ended Department

78‧‧‧End fixed part

Claims (5)

An electrical connector for a circuit board is an electrical connector for a circuit board that is disposed on a mounting surface of a circuit board at a right angle to the mounting surface and that is inserted into and removed from the connector in a connector insertion/removal direction. Having: a reinforced metal fitting made of a bent metal plate member; forming a separate member with the reinforced metal fitting or a terminal formed as a part of the reinforced metal fitting; and opening the connector in the plugging direction a receiving portion for inserting and removing, and directly or indirectly holding the outer casing of the reinforcing metal fitting and the terminal, the outer casing having: a bottom wall facing the mounting surface; and an outer wall erected from opposite edges of the bottom wall And a protruding wall erected from the bottom wall between the pair of outer walls, the reinforced metal fitting, having: an outer wall upright reinforcement portion extending along the vertical surface of the outer wall facing the standing wall of the protruding wall and retained on the outer wall; a protruding wall erecting portion extending along the vertical surface of the protruding wall opposite to the reinforcing portion of the outer wall erecting surface and holding the protruding wall; and connecting the bottom portion and extending along the bottom wall An outer wall connected to the bottom wall reinforcing rising surface side end portion and the upright side wall projecting reinforcing portions to each other. The electrical connector for a circuit board according to the first aspect of the invention, wherein the reinforced metal fitting has a protruding wall top surface that extends from an opening side end portion of the protruding wall erecting surface reinforcing portion and is exposed on a top surface of the protruding wall of the outer casing. Strengthening department. The electrical connector for a circuit board according to the first or second aspect of the invention, wherein the reinforced metal fitting has an outer wall top extending from an opening side end portion of the outer wall upright surface reinforcing portion and exposed on a top surface of the outer wall of the outer casing Surface strengthening department. The electrical connector for a circuit board according to any one of the first to third aspect, wherein the reinforced metal fitting has an opening side end portion from the protruding wall reinforced portion through the protruding wall top surface reinforcing portion The bottom wall side of the outer casing extends and is held by the projecting portion on the projecting wall side of the projecting wall. The electrical connector for a circuit board according to any one of the first to fourth aspect, wherein the reinforcing metal fitting has an opening side end portion of the reinforcing portion of the outer wall standing surface and an outer wall top surface reinforcing portion toward the outer casing. The bottom wall side extends and is held by the outer wall side of the outer wall by the holding portion.