TWI766039B - Electrical connectors for circuit boards - Google Patents

Abstract

An object of the present invention is to provide an electrical connection for a circuit board that can more reliably lock the connectors to each other and that can favorably reduce the influence of noise between two terminal rows and between the terminal row and the outside of the connector. device. A means for solving the problem is an electrical connector for a circuit board, wherein the locking member (30) is located between two terminal rows in the connector width direction at right angles to the terminal arrangement direction, and is inserted into the connector. In the pulling direction, it is located in a range including at least the contact portion of the terminal (20) and the object terminal (60) in contact, and in the terminal arrangement direction, it extends over the range including the terminal arrangement range, and the housing member (40) is provided along the A side plate portion (42) extending in the terminal arrangement direction over the range including the range of the terminal arrangement, facing the outer surface of the housing (10); (30) and the aforesaid casing member (40) are electrically connected through the pushing portion (45).

Description

Electrical connectors for circuit boards

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

In such an electrical connector, it is desired that the electrical connector and the counterpart connector to be fitted and connected to each other have a locking function for maintaining the fitted state of the connectors. In addition, when the electrical connector is used for high-speed signal transmission, it is required to minimize the influence of the noise radiated from the terminal of the electrical connector on the outside, and the noise received by the terminal from the outside. influence.

Patent Document 1 discloses a receptacle connector as a connector for a circuit board provided with a metal locking member (GCL member) having a locking function. In this receptacle connector, the longitudinal direction of the housing is used as the terminal arrangement direction, and a plurality of terminals forming two terminal rows are arranged and held in the housing. The locking member is arranged in the terminal arrangement direction between the two terminal rows and is arranged to extend over a range including the terminal arrangement range to separate the two terminal rows. The locking member is formed at both end portions in the terminal arrangement direction, and is formed with a locking member (connecting portion) made of metal provided in a plug connector (electrical connector for a circuit board as a counterpart connector) to be locked. department. The locked member has a width direction of the connector (Short-side direction of the casing) The two locked arm portions that are elastically displaced are soldered to the corresponding circuit portions of the circuit board on which the plug connector is mounted.

The locking portion of the locking member is fastened in the connector-fitted state, enters between the locking arm portions of the locking member, and is engaged with the protrusion-shaped locking portion formed on the locking arm portion. That is, the locking member and the locked member have a locking structure (herein, referred to as [simple locking structure]) that enables the connector to be pulled out by applying a pull-out force greater than or equal to the locking force (locking force). ]). The aforementioned locked member is soldered to the corresponding circuit portion of the circuit board.

Also, in the receptacle connector, as described above, the locking member extends in the terminal arrangement direction to space the two terminal rows apart, and the locking member prevents crosstalk between the two terminal rows.

[Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2017-103119

However, as described above, in Patent Document 1, the locking member of the receptacle connector and the locked member of the plug connector have a simple locking structure. However, compared with the locking structure (herein, referred to as "complete locking structure") in which the connector can be pulled out by moving one of the locking member in the locked state and the locked member to the unlocked position, locking force Small. Therefore, in order to make sure the locked state of the connectors to each other, it is desirable to adopt a fully locked configuration.

In addition, the receptacle connector of Patent Document 1 does not have a metal shell member, so there is no metal on the outer side (the side opposite to the side where the locking member is located) of each terminal row in the connector width direction. member. As a result, in the aforementioned receptacle connector, even if the crosstalk between the two terminal rows can be prevented, in each terminal row, the noise radiated from the terminal is easily leaked to the outside of the connector, and the terminal is also easily affected by the connection. effects of external noise. That is, there is a possibility that the above-mentioned receptacle connector and the electronic equipment or the like adjacent to it will exert a bad influence on each other.

The present invention has been developed in view of such a situation, and its subject is to provide a more reliable locking state of the connectors, and to satisfactorily reduce the contact between the two terminal rows and between the terminal row and the outside of the connector. Electrical connectors for circuit boards that are affected by noise between them.

The electrical connector for a circuit board of the present invention is arranged on the mounting surface of the circuit board, and is pluggably connected to the electrical connector for the circuit board of the counterpart connector. A casing made of an electrical insulating material extending in one direction as a longitudinal direction; a plurality of terminals made of metal arranged and held in the casing by forming two rows of terminal rows with the longitudinal direction as the terminal arrangement direction; arranged in the casing The accommodating portion of the body, along the terminal arrangement direction, can be in a locking position that can prevent the withdrawal of the counterpart connector and a lock that allows the withdrawal of the counterpart connector. A metal locking member that moves between release positions; a metal pushing portion that pushes the locking member toward the locking position; and a metal casing member attached to the casing.

With regard to the electrical connector for a circuit board, the present invention is characterized in that the locking member is fastened in the connector width direction, located between two terminal rows, and located in the connector insertion/removal direction including at least the terminal. At least a part of the range, and in the terminal arrangement direction, extending over the range including the terminal arrangement range, the outer shell member is along the outer surface of the housing, extending in the terminal arrangement direction throughout the range including the terminal arrangement range The side plate part; and the connecting part which can be connected to the corresponding circuit part of the circuit board, the locking member and the shell member are electrically connected through the pushing part.

In the present invention, since the locking member made of metal is provided between the two terminal rows, and the locking member is electrically connected to the housing member that grounds the circuit board via the pushing portion, even if the terminal is used In the transmission of high-speed signals, crosstalk between the two terminal rows can also be prevented by the aforementioned locking member. Also, there is a side plate portion of the housing member on the outer side of each terminal row in the connector width direction (on the side opposite to the side where the locking member is located), and the terminal row is shielded from the outside by the side plate portion. Therefore, the leakage of noise radiated from the terminals of each terminal row to the outside of the connector and the intrusion of noise from the outside of the connector can be favorably prevented by the side plate portion. As a result, the situation that the electrical connector and the adjacent electronic equipment and the like have a bad influence on each other's signal transmission will disappear.

Also, the aforementioned locking member is formed so that when the connector is pulled out When the connector is moved from the locked position to the unlocked position, a so-called complete locking structure is formed in a state where the connector can be pulled out. Compared with the conventional simple locking structure, the locking strength is higher. Therefore, the locked state can be maintained more reliably.

In the present invention, the pushing portion may be formed integrally with the housing member. In this way, the number of parts can be reduced and the manufacturing cost can be suppressed by forming the pusher portion and the casing member integrally and providing the pusher portion as a separate member from the casing member. In addition, when the connector is manufactured, by attaching the housing member to the housing, the push portion is also attached at the same time, so the process of attaching the push portion to the housing can be omitted, so that the connector can be Manufacturing is simplified.

In the present invention, it is preferable that the locking member is made of a metal plate, and the plate surface at right angles to the plate thickness direction is arranged parallel to the plate surface of the side plate portion of the casing member facing the outer surface of the case. In this way, by arranging the locking member made of metal plate, noise shielding can be performed over a wide range on the aforementioned plate surface of the locking member, and the size of the locking member in the connector width direction is formed so that the locking Due to the thickness dimension of the member, the enlargement of the connector in the connector width direction can be avoided.

In the present invention, as described above, since the locking member made of metal is provided between the two terminal rows, and the locking member is electrically connected to the housing member via the urging portion, even if the terminal is used for high speed The transmission of the signal can also be prevented by the aforementioned locking member between the two terminal rows. crosstalk between. Since the terminal row is shielded from the outside by the side plate portion of the housing member, the noise radiated from the terminals of each terminal row can be well prevented from leaking to the outside of the connector and noise from the outside of the connector by the side plate portion. Intrusion, the situation that the electrical connector and its adjacent electronic equipment have a bad influence on each other's signal transmission will disappear. In addition, since the locking member is formed in a so-called complete locking structure, the locking strength can be increased compared with the conventional simple locking structure, so that the locked state can be maintained more reliably.

1: socket connector

2: Plug connector

10: Socket side shell

11: Bottom wall

11B: Bottom hole

11BS: Bottom hole for signal terminal

11BP: Bottom hole for power terminal

11C: Bottom recess

11CS: Bottom recess for signal terminal

11CP: Bottom recess for power terminal

12: Protruding Wall

12A: Central Island

12A-1: Front support part

12A-2: Rear lock release position side restriction portion (lock release position side restriction portion)

12A-3, 12C-3: Lock position side limiter

12A-4, 12B-3, 12C-4: Limit surface

12B: Anterior island

12B-2: Front lock release position side limiter (lock release position side limiter)

12C: Rear island

12C-1: Upper Wall

12C-2: Rear support part

12D: Longitudinal groove

12E: Side

13: Zhou Wall

14: Sidewall

14A: Side recess

14B: Installation Department

15: End Wall

15A: End recess

16: Receiving Department

17: Locking fastener accommodating groove (accommodating part)

17A: Bottom groove

17B: Front end wall groove (end wall groove)

17C: Rear end wall groove (end wall groove)

17B-1, 17C-1: Limit surface

17D: Protruding wall groove

17D-1: Front Projecting Wall Hole (Projecting Wall Hole)

17D-2: Rear protruding wall hole portion (protruding wall hole portion)

20: Socket terminal

20S: Socket signal terminal

20P: socket power terminal

21S: Base

22S: Contact arm

22AS: Contact part

23S: Retained Department

23AS: Locking part (inner foot part)

23BS: Locking part (outer foot part)

23BP: Locking part

24S: Connection part

30: Locking fastener (locking member)

31A: Front large recess

31B: Rear large recess

31A-1, 31B-1: Front edge

32A: Small recess in front

32B: Rear small recess

33A: Front locking projection (locking projection)

33B: Rear locking projection (locking projection)

34A: Front supported part (supported part)

34B: Rear supported part (supported part)

34A-1, 34B-1: Transverse

34A-2, 34B-2: Longitudinal

35: Pushed

36: Lock release operation part

40: Shell components

41: Upper board

42: Side panel

42A: Installation groove

42B: Connection part

43: Inner end plate

44: Outer end plate

45: Pusher

45A, 45B: elastic sheet

45A-1, 45B-1: Front end piece

45C: Containment Department

46: End Mounting Tab

47: Contact sheet

50: Plug side housing

51: Bottom wall

53: Zhou Wall

54: Sidewall

55: End Wall

55A: end groove

56: Receiving Department

60: Plug terminal (terminal)

60S: Plug signal terminal

60P: plug power terminal

61S: Connection part

62S: Retained Department

62AS: touch foot

62BS: Lock feet

62B-1S, 62B-1P: Lock step part

70: Locked fasteners

70A: Protrusion

71: Base

71A: Connector

72: Rising Department

73: Inside locked part (locked part)

74: Outside locked part (locked part)

76: Side panel

B1, B2: circuit board

P: Jig

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

FIG. 2 is a perspective view showing the receptacle connector and the plug connector of FIG. 1 upside down, and is a perspective view showing a posture of fitting the plug connector from below.

3 is a cross-sectional view of a plane at right angles to the terminal arrangement direction of the receptacle connector and the plug connector of FIG. 1, showing the cross-section of the position of the signal terminals in the terminal arrangement direction.

FIG. 4 is a perspective view showing a posture of holding the locking fastener of the receptacle connector of FIG. 1 to the receptacle connector of FIG. 1 .

5 is a cross-sectional view of the receptacle connector of FIG. 1 at right angles to the connector width direction, showing a cross section of the position of the locking fastener in the connector width direction.

Fig. 6(A) is a cross-sectional view of the receptacle connector and the plug connector in a locked state at right angles to the connector width direction, and (B) is an enlarged view of the right half of (A).

7(A) is a cross-sectional view of the receptacle connector and the plug connector in the unlocked state at right angles to the connector width direction, and FIG. 7(B) is an enlarged view of the right half of (A).

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

FIG. 1 is a perspective view of a receptacle connector 1 of the present embodiment and a plug connector 2 to which the receptacle connector is fitted from above, showing a state before the connectors are fitted. FIG. 2 is a perspective view showing the receptacle connector 1 and the plug connector 2 of FIG. 1 upside down and showing the plug connector 2 from below.

The plug connector 1 of the present embodiment and the plug connector 2 serving as the counterpart connector of the receptacle connector 1 are respectively arranged on different circuit boards B1 and B2 (in FIGS. The electrical connectors for circuit boards on the mounting surface shown in Figure 1) are constructed so that the direction at right angles to the surfaces of the circuit boards B1 and B2 (the up-down direction (Z-axis direction) in FIG. 1 ) is used as the connector assembly as the insertion and removal direction. body. Regarding the receptacle connector 1 , the connector fitting direction to the plug connector 2 is upward (Z1 direction) in FIG. 1 , and the connector extraction direction is downward (Z2 direction) in FIG. 1 . In addition, regarding the plug connector 2, the connector fitting direction to the receptacle connector 1 is downward in FIG. 1 . (Z2 direction), the connector extraction direction is upward in FIG. 1 (Z1 direction). In addition, in the present embodiment, the plug connector 2 is described as the counterpart connector, but when viewed from the plug connector 2, the receptacle connector 1 becomes the counterpart connector.

The receptacle connector 1 is shown in FIG. 1 and has: a receptacle side housing 10 having a substantially rectangular parallelepiped shape; the length direction of the receptacle side housing 10 is used as the terminal arrangement direction (X-axis direction), and the receptacle side housing The body 10 is arranged and held in two rows by a plurality of socket terminals 20; a locking fastener 30 as a locking member extending along the aforementioned longitudinal direction and held in the aforementioned socket-side housing 10; to cover the outer casing member 40 of the peripheral wall of the socket side housing 10 . The receptacle connector 1 is mounted on the circuit board B1 in a posture as shown in FIG. 1 .

The socket-side housing 10 is made of, for example, an electrical insulating material such as resin, and extends in a direction parallel to the mounting surface of the circuit board B1 as a longitudinal direction (terminal arrangement direction). The socket-side housing 10 has a bottom wall 11 (refer to FIG. 2 ) that is parallel to the aforementioned mounting surface; in FIG. 1 , a protrusion that rises upward (Z1 direction) from the bottom wall 11 and extends in the terminal arrangement direction and a frame-shaped peripheral wall 13 that rises upward from the bottom wall 11 and surrounds the protruding wall 12 . The peripheral wall 13 has: a pair of side walls 14 extending in the terminal arrangement direction (X-axis direction); The ends of the side walls 14 are connected to each other by a pair of end walls 15 . An annular space open upward between the protruding wall 12 and the peripheral wall 13 is formed as a receiving portion 16 serving as a receiving portion 16 for receiving the peripheral wall 53 serving as a fitting portion of the plug connector 2 .

The above-mentioned socket side housing 10 is in the form of holding the socket terminal 20, the locking fastener 30, and the housing member 40. However, in order to understand this form, before the socket side housing 10 is further described, first, the socket terminals 20, The locking clip 30 and the housing member 40 are locked.

The plurality of socket terminals 20 have socket signal terminals 20S and socket power terminals 20P. As shown in FIGS. 1 to 3 , the terminal row of the receptacle connector 1 consists of a terminal row on the Y1 side and a terminal row on the Y2 side, and the two rows of terminal rows are separated in the connector width direction (Y-axis direction). They are arranged at predetermined intervals and in parallel along the terminal arrangement direction (X-axis direction). The respective terminal rows are composed of a plurality of socket signal terminals 20S arranged at equal intervals, and sockets arranged on both sides of the arrangement range of the socket signal terminals 20S in a manner of being formed in the same row as the socket signal terminals 20S. The power supply terminal 20P is constituted.

The socket signal terminal 20S and the socket power terminal 20P are produced by bending a strip-shaped sheet obtained by punching a metal plate in the direction of the plate thickness as shown in FIGS. 1 to 3 . As shown in FIG. 3 , the socket signal terminal 20S has: a base portion 21S (also refer to FIG. 2 ) extending in the width direction of the connector; at one end of the base portion 21S, a contact arm portion 22S ( 1); from the other end of the base 21S to extend into an inverted U-shaped held portion 23S (see also FIG. 1); and from the held portion 23S toward the connector width direction outside (in FIG. 3, for the right The socket signal terminal 20S on the left side is a connecting portion 24S (refer to FIG. 2 ) extending in the Y1 direction, and the socket signal terminal 20S on the left side is in the Y2 direction). In the socket signal terminal 20S, the base portion 21S and the held portion 23S are integrated with the bottom wall 11 and the side wall 14 of the socket side housing 10 , respectively. Die shaping is maintained.

The contact arm portion 22S is accommodated in a longitudinal groove portion 12DS formed in the protruding wall 12 of the socket side housing 10, which will be described later, and is elastically deformable in the plate thickness direction of the contact arm portion 22S, in other words, in the connector width direction. . At the upper end of the contact arm portion 22S, a contact portion 22AS is formed protruding outward in the connector width direction, and is located in the receiving portion 16 for contacting the plug signal terminal 60S provided in the plug connector 2 as a counterpart terminal. As shown in FIG. 3 , the held portion 23S having an inverted U shape (see also FIG. 1 ) is the inner leg portion 23AS located on the inner side in the width direction of the connector among the two leg portions. A locking portion 23BS for locking with the aforementioned plug signal terminal 60S is protruded from the upper portion of the board. Also, as shown in FIG. 3 , the connecting portion 24S is directed from the lower end (upper end in FIG. 2 ) of the outer leg portion 23BS located on the outer side in the connector width direction among the two leg portions of the held portion 23S toward the connector width direction. The outer side extends out of the socket side housing 10 and is soldered to the corresponding circuit portion (not shown) of the circuit board B1.

The basic structure of the socket power terminal 20P is the same as that of the socket signal terminal 20S, and is formed in the same shape as the socket signal terminal 20S when viewed in the terminal arrangement direction. As shown in FIGS. 1 and 2 , in the socket power supply terminal 20P, the part corresponding to the socket signal terminal 20S is shown by assigning the symbol [P] instead of [S]. The socket power terminal 20P is different from the socket signal terminal 20S in that it has a larger size in the terminal width direction (terminal arrangement direction) and has two locking portions 23BP than the socket signal terminal 20S. The locking portion 23BP has the same shape as the locking portion 23BS of the socket signal terminal 20S, and is at the same height as the locking portion 23BS. The two locking portions are arranged in the width direction of the terminal.

Next, referring also to FIG. 4 , the structure of the locking clasp 30 will be described. FIG. 4 is a perspective view showing the attitude of holding the locking fastener 30 of the receptacle connector 1 of FIG. 1 in the receptacle connector of FIG. 1 . The lock fastener 30 extends in the terminal arrangement direction (X-axis direction), and moves to the upper right by receiving a lock release operation toward the upper right (X1 direction) in FIG. 4 , as will be described later. In this embodiment, the upper right (X1 direction) in FIG. 4 , that is, the forward direction of the movement direction of the lock catch 30 when the lock is released is referred to as “forward”, and the lower left (X2 direction) in FIG. 4 is referred to as “forward”. called [rear].

The lock fastener 30 is produced by cutting a rod-shaped metal member extending in the front-rear direction (terminal arrangement direction). As shown in FIG. 3 , the locking fastener 30 is located at the central position of the socket connector 1 in the width direction of the connector, in other words, between the two terminal rows, and in the connector insertion and extraction direction, at the position including the socket signal terminals A portion of the range of 20. In addition, the locking fastener 30 is formed larger than the socket housing 10 in the front-rear direction, and includes a terminal arrangement range in the front-rear direction. Furthermore, the locking fastener 30 can also be formed in a dimension including the entire range of the socket signal terminal 20 in the connector insertion and extraction direction.

The locking clip 30 is attached to the front half of the locking clip 30, and is formed with a large concave portion 31A in the front that is recessed into a square shape from the side surfaces on both sides (surfaces at right angles to the Y-axis direction) at a position close to the front end, and a large concave portion 31A in the front. The rear position of the large front concave portion 31A is recessed into an L-shaped small front concave portion 32A from both side surfaces. In addition, the rear half of the locking clip 30 is formed with a large recessed portion at the rear that is recessed into a square shape from the side surfaces on both sides at a position close to the rear end. 31B, and a small rear concave portion 32B that is recessed into an L-shape from both side surfaces at a position in front of the large rear concave portion 31B. The front large concave portion 31A and the rear large concave portion 31B (collectively referred to as [large concave portions 31A, 31B] when no distinction is required) are formed in the same shape as each other except for the positions of the locking convex portions 33A, 33B described later in the front-rear direction Outside, the rest are open upwards. Further, the front small concave portion 32A and the rear small concave portion 32B (collectively referred to as [small concave portions 32A, 32B] when no distinction is required) are formed in the same shape as each other, except for the supported portions 34A, 34B described later in the front-rear direction , the rest are open upwards. The small concave portions 32A and 32B are formed in the front-rear direction and the up-down direction, and the large concave portions 31A and 31B are formed to be small.

In addition, the locking clip 30 has the large recesses 31A and 31B which protrude rearward from the upper part of the front edge parts 31A-1 and 31B-1 (edges extending in the vertical direction) among the edges forming the large recesses 31A and 31B. The inner locking protrusions 33A, 33B (front locking protrusion 33A, rear locking protrusion 33B). The locking protrusions 33A and 33B each have an upper edge that slopes downward as it goes to the rear, and a lower edge that extends in a direction at right angles to the up-down direction (the front-rear direction) and is formed into a hook shape, and can be connected with the device. The plug connector 2 is locked by a locking fastener 70 serving as a target locking fastener (see FIGS. 6(A) and (B) ).

Further, the lock fastener 30 has horizontal portions 34A-1 and 34B-1 that serve as upper edge portions and vertical portions 34A-2 and 34B-2 that serve as front edge portions from among the edge portions forming the small concave portions 32A and 32B. Inverted L-shaped supported parts 34A and 34B (front supported part 34A, rear supported part 34B) are formed. The supported portions 34A and 34B are for engaging the corresponding portions (the front support portion 12A- 1 and the rear support portion 12C- 2 to be described later) of the socket-side housing 10 in the downward direction. The portion that prevents the locking fastener 30 from falling off from the socket side housing 10 downward.

The lateral portions 34A- 1 and 34B- 1 of the supported portions 34A and 34B also have a function of abutting against the locking position side restricting portions 12A- 3 and 12C- 3 of the socket-side housing 10 , which will be described later, as receiving The function of the restricted portion on the locked position side of the restriction of the locking fastener 30 moving backward (see also FIGS. 5 and 6(A) and (B)). In addition, the vertical portions 34A- 2 and 34B- 2 of the supported portions 34A and 34B also have a function of abutting against the lock release position side restricting portions 12B- 2 and 12C- 4 of the socket-side housing 10 , which will be described later. , as a function of a restricted portion on the unlocked position side receiving the restriction of the locking clip 30 moving forward (see also FIGS. 7(A) and (B) ).

In addition, the lock fastener 30 further includes a pushed portion 35 extending upward at the rear end position and a lock release operation portion 36 extending upward at the front end position. The pushed portion 35 is in contact with the push portion 45 of the casing member 40 described later, and receives a push force (elastic force) from the push portion 45 toward the rear, that is, toward the lock position described later. The lock release operation portion 36 is located further forward than the lock protrusions 33A, 33B, the pushed portion 35, etc., that is, on the side of the lock release position, and receives the lock release toward the front when the lock release operation is performed, as will be described later. operating force.

As shown in FIGS. 1 and 2 , the case member 40 is produced by punching a metal plate into a predetermined shape and then bending it in the plate thickness direction. As shown in FIG. 1 , the housing member 40 includes: an upper plate portion 41 covering the upper surfaces of both end walls 15 of the socket side housing 10 and the ends of the side walls 14 in the terminal arrangement direction; Both end edges of the upper plate portion 41 are bent downward at a right angle, extend in the terminal arrangement direction, cover the side wall 14, and are held on the socket side The side plate portion 42 of the housing 10; the end edges of the side plate portion 42 in the terminal arrangement direction are bent inward in the width direction of the connector to cover the end wall surfaces of the end walls 15 (surfaces at right angles to the terminal arrangement direction) Inner end plate portion 43 (refer to FIG. 2 ); at the position close to both ends of the upper plate portion 41 in the connector width direction, the side edge of the upper plate portion 41 (the side edge extending in the connector width direction) faces downward The outer end plate portion 44 is extended from the inner end plate portion 43 after being bent at a right angle and extends to cover the outer end plate portion 43 ; The housing member 40 also functions as a shielding member.

The upper plate portion 41 covers the upper end portion 41A of the end wall 15 and the side surface portions 41B covering the ends of the two side walls 14 , and is roughly U-shaped when viewed from above. Two end mounting pieces 46 that are bent downward and extend to the lower part of the end wall 15 are formed from the side edge (the side edge extending in the connector width direction) of the end portion 41A on the inner side in the terminal arrangement direction. Also, from the inner side edge in the connector width direction (the side edge extending in the terminal arrangement direction) on the inner side of the side surface portion 41B, a contact piece 47 is formed which is bent downward and extends to a position close to the upper end of the side wall 14 .

The side plate portion 42 extends along the outer surface of the side wall 14 and extends over the entire area of the side wall 14 in the terminal arrangement direction. That is, the side plate portion 42 is provided so as to include the terminal arrangement range in the terminal arrangement direction. The side plate portion 42 is outside the terminal arrangement range in the terminal arrangement direction, and the lower edge portion is cut to form a mounting groove portion 42A for press-fitting to a corresponding portion (the mounting portion 14B described later) of the socket side housing 10, On both outer sides of the mounting groove portion 42A, connecting portions 42B that are fixed to corresponding circuit portions of the circuit board B1 by soldering are formed. By welding the connection portion 42B, the housing member 40 is electrically connected land.

The two inner end plate portions 43 extend toward the inside of the connector width direction to an intermediate position in the same direction, specifically, to the side edges (those extending in the vertical direction) of the end wall groove portions 17B and 17C of the end wall 15 to be described later. edge), and the front ends (inner ends) are spaced apart from each other. The pushing portion 45 is formed by two elastic pieces 45A, 45B that are folded back from the inner end of the respective inner end plate portion 43 toward the outside in the connector width direction and then further folded back toward the inside in the connector width direction. The elastic pieces 45A, 45B are attached to the upper part of the front end portion (inner edge) thereof, and have front end pieces 45A-1, 45B-1 ( Please also refer to FIG. 6(A), FIG. 7(A)). The front end piece 45A-1 of the elastic piece 45A is opposed to the inner end edge of the other elastic piece 45B, and the front end piece 45B-1 of the elastic piece 45B is connected to the lower position of the front end piece 45A-1 and extends to be opposite to the other end piece 45A-1. The inner end edges of the one elastic piece 45A face each other. Moreover, below these front-end pieces 45A-1 and 45B-1, the accommodating part 45C for accommodating the rear-end part of the locking clip 30 is formed.

Return to the description of the socket-side housing 10 . As shown in FIG. 2, the bottom wall 11 of the socket-side housing 10 has a bottom hole 11B and a bottom recess 11C symmetrical to a center line extending in the terminal arrangement direction (X-axis direction) through the center in the connector width direction. And at the same position as the corresponding socket terminals 20, a plurality of them are arranged at equal intervals in the terminal arrangement direction, and the bottom hole portion 11B is located near the center in the connector width direction (Y-axis direction). The bottom groove portion 17A adjacent to the lock fastener accommodating groove portion 17 to be described later penetrates in the up-down direction, and the bottom recess portion 11C has a width of the connector. The bottom hole portion 11B is adjacent to the bottom hole portion 11B in the direction, is recessed from the bottom surface (the upper surface in FIG. 2 ) of the bottom wall 11 , and is open to the outside in the connector width direction. The plurality of bottom hole portions 11B have bottom hole portions 11BS for signal terminals located at positions corresponding to the socket signal terminals 20S, and bottom hole portions 11BP for power terminals located at positions corresponding to the socket power terminals 20P. The plurality of bottom recesses 11C have: bottom recesses 11CS for signal terminals located at positions corresponding to the socket signal terminals 20S; and bottom recesses 11CP for power terminals located at positions corresponding to the socket power terminals 20P. The width dimension (dimension in the terminal arrangement direction) of the bottom hole portion 11BP for power terminals and the bottom concave portion 11CP for power terminals (dimensions in the terminal arrangement direction) is larger than that of the bottom hole portion 11BS for signal terminals and the bottom concave portion 11CS for signal terminals, respectively. The bottom hole portion 11B accommodates a part of the base portion 21S of the socket terminal 20 , and the bottom concave portion 11C accommodates the connection portion 24 of the socket terminal 20 .

As shown in FIG. 1, the protruding wall 12 is formed with a vertical groove portion 12D recessed from the side surface 12E of the protruding wall 12 and extending through the vertical direction at a position corresponding to the socket terminal 20 in the terminal arrangement direction. A plurality of terminals are formed in a row in the terminal arrangement direction. The plurality of vertical groove portions 12D have: a signal terminal vertical groove portion 12DS located at a position corresponding to the socket signal terminal 20S; The width dimension is larger than that of the signal terminal vertical groove portion 12DS.

The side wall 14 is formed on the upper part of the inner surface (the wall surface forming the receiving portion 16 ) of the side wall 14 on both outer sides of the terminal arrangement range, and a side concave portion 14A recessed from the inner surface is formed. The side concave portion 14A is used to accommodate the contact piece 47 of the housing member 40 . In addition, the side walls 14 are on both outer sides of the terminal arrangement range, A mounting portion 14B that is press-fitted into the mounting groove portion 42A of the case member 40 is formed, and the mounting portion 14B is formed to protrude from the outer surface of the lower portion of the side wall 14 .

The end wall 15 is formed with recesses from the inner surface of the end wall 15 (the wall surface forming the receiving portion 16 ) at the positions on both sides of the end wall grooves 17B and 17C in the connector width direction of the end wall grooves 17B and 17C of the locking fastener receiving groove 17 to be described later. End recess 15A extending in the up-down direction. The end recess 15A is used to accommodate the end mounting piece 46 of the housing member 40 .

In addition, in the socket-side housing 10, the locking clip accommodating groove 17 for accommodating the function accommodating portion of the locking clip 30 is located at the central position in the connector width direction, and extends at right angles to the connector width direction. It is slit-shaped, and extends and forms over the entire area of the socket-side housing 10 in the terminal arrangement direction. As shown in FIG. 5 , the locking clasp receiving groove 17 is formed in a symmetrical shape (left-right symmetry in FIG. 5 ) along the terminal arrangement direction.

5 is a cross-sectional view of the receptacle connector 1 of FIG. 1 at right angles to the connector width direction, showing a cross section of the position of the locking fastener 30 in the connector width direction. In this FIG. 5, the right side becomes the front, and the left side becomes the rear. The locking clip accommodating groove 17 is formed by communicating with the grooves or holes of each part for receiving the locking clip 30 .

As shown in FIG. 5, the locking clip receiving groove 17 has: a bottom groove 17A (refer to FIG. 2) for receiving the lower part of the locking clip 30; The groove portion 17B; the rear end wall groove portion 17C for receiving a part of the rear end side portion of the locking clip;

As shown in FIG. 2 , the bottom groove portion 17A penetrates and extends in the same direction along the entire area of the bottom wall 11 in the terminal arrangement direction. The bottom groove portion 17A is a region corresponding to the receiving portion 16 in the terminal arrangement direction, that is, a region between the protruding wall 12 and the end wall 15 , which penetrates vertically and communicates with the receiving portion 16 . As shown in FIG. 5 , the front end wall groove portion 17B is connected to the end wall 15 located in the front (right end side in FIG. 5 ) in the terminal arrangement direction, and extends in the up-down direction and in the wall thickness direction (terminal arrangement) of each end wall 15 . The rear end wall groove portion 17C extends in the vertical direction from the end wall 15 located at the rear (the left end side in FIG. 5 ) in the terminal arrangement direction and extends in the wall thickness direction (terminal side of the terminal) of each end wall 15 arrangement direction) through. The upper inner wall surface of the front end wall groove portion 17B and the upper inner wall surface of the rear end wall groove portion 17C (surfaces at right angles to the up-down direction) are respectively abutted on the upper edge of the locking clip 30 to restrict the locking clip 30 from going upward. The movement restriction surfaces 17B-1 and 17C-1 function.

The protruding wall groove portion 17D penetrates the lower portion of the protruding wall 12 in the front-rear direction, and communicates with the bottom groove portion 17A. The protruding wall groove portion 17D has a front protruding wall hole portion 17D- 1 penetrating the protruding wall 12 in the vertical direction at a position near the front end of the protruding wall 12 , and a front protruding wall hole portion 17D- 1 at a position near the rear end of the protruding wall 12 . The protruding wall 12 penetrates the rear protruding wall hole portion 17D-2 in the vertical direction. As shown in FIG. 5 , the front protruding wall hole portion 17D-1 and the rear protruding wall hole portion 17D-2 are formed in a T-shape in cross-section, and the front protruding wall hole portion 17D-1 accommodates the front of the locking fastener 30. In the support portion 34A, the rear protruding wall hole portion 17D- 2 accommodates the rear supported portion 34B of the lock fastener 30 .

As shown in FIG. 5 , the protruding wall 12 is formed with: a central island-shaped portion 12A located between the front protruding wall hole portion 17D-1 and the rear protruding wall hole portion 17D-2 at the central position in the terminal arrangement direction; The front front island portion 12B of the front protruding wall hole portion 17D-1; and the rear rear island portion 12C located behind the rear protruding wall hole portion 17D-2.

The central island-shaped portion 12A has a front support portion 12A- 1 and a rear lock release position side restricting portion 12A- 2 protruding forward and rearward, respectively, at the lower portion. Further, the front island portion 12B has an upper wall portion 12B-1 extending forward from the upper portion, and a front unlocking position side restricting portion 12B-2 protruding rearward from the lower portion, and the overall cross-sectional shape is formed in a crank shape. Further, the rear island portion 12C has an upper wall portion 12C-1 extending rearward from the upper portion, and a rear support portion 12C-2 protruding forward from the lower portion, and the overall cross-sectional shape is formed so that the front island portion 12B is broken. Crank shape in which the face shape is reversed left and right. The upper inner wall surfaces of the central island-shaped portion 12A, the front island-shaped portion 12B, and the rear island-shaped portion 12C (surfaces at right angles to the up-down direction) serve as abutment against the upper edges of the locking clips 30 to restrict the locking clips 30 respectively. The upward movement restriction surfaces 12A-4, 12B-3, and 12C-4 function.

The front protruding wall hole portion 17D-1 is formed into a T-shape as a whole by narrowing the lower portion by protruding the front support portion 12A-1 and the front lock release position side restricting portion 12B-2 by approaching in the terminal arrangement direction. In addition, the rear protruding wall hole portion 17D-2 is formed into a T-shape as a whole by narrowing the lower portion by protruding the rear support portion 12C-2 and the rear lock release position side restricting portion 12A-2 by approaching in the terminal arrangement direction. .

As shown in FIG. 5, in this embodiment, the front support The portion 12A-1 is locked to the front supported portion 34A of the locking clip 30, and the rear support portion 12C-2 is locked to the rear supported portion 34B of the locking clip 30 to prevent the locking clip 30 from passing from the socket side housing 10. It functions as a support part that falls off downward.

The front end portion of the upper portion of the central island portion 12A is in contact with the lateral portion 34A-1 of the front supported portion 34A of the locking clasp 30, and serves as a front locking position that restricts the locking clasp 30 from moving rearward in the terminal arrangement direction. The restricting portion 12A-3 functions. The upper front end portion of the rear island portion 12C is in contact with the lateral portion 34B-1 of the supported portion 34B of the locking fastener 30, and the rear locking position is restricted as the restriction locking fastener 30 moves rearward in the terminal arrangement direction. Section 12C-3 functions.

The receptacle connector 1 of the structure described above is assembled in the following manner. First, the receptacle side housing 10 is integrally molded with a plurality of receptacle terminals 20 (receptacle signal terminals 20S and receptacle power supply terminals 20P) arranged in two rows, thereby arranging and holding the receptacle terminals 20 in the receptacle side housing 10 . As a result, a part of the base portion 21S of the socket terminal 20 is held by the bottom wall 11 , and the held portion 23 of the socket terminal 20 is held by the side wall 14 . Moreover, the contact arm portion 22 is accommodated in the longitudinal groove portion 12D of the protruding wall 12 so as to be elastically displaceable, and the connecting portion 24 is exposed in the bottom concave portion 11C of the bottom wall 11 .

Next, the housing member 40 is attached to the socket-side housing 10 from above. At this time, the mounting portion 14B of the side wall 14 of the socket-side housing 10 is press-fitted into the mounting groove portion 42A of the side plate portion 42 of the case member 40 . Moreover, the contact piece 47 is accommodated in the side concave portion 14A of the side wall 14 , and the end mounting piece 46 is accommodated in the end concave portion 15A of the end wall 15 .

In the present embodiment, since the pusher portion 45 is formed as a part of the casing member 40, the number of parts can be reduced compared to the case where the pusher portion is provided as a separate member from the casing member, and the production can be suppressed. cost. In addition, when the connector is manufactured, by attaching the housing member 40 to the socket-side housing 10, the snap portion 45 is also mounted at the same time, so the process of attaching the snap portion to the socket-side housing 10 can be omitted. Simplifies the manufacture of the connector. However, it is not absolutely necessary to form the pusher portion and the housing member integrally, and the pusher portion may be used as another part different from the shell member when the necessity of suppressing the manufacturing cost of the connector and simplifying the manufacturing process is low. The spring push member is set.

Moreover, the lock clasp 30 is accommodated in the lock clasp accommodating groove portion 17 from below the socket-side housing 10 as described below. At this time, the supported portions 34A and 34B of the locking fastener 30 are positioned at the same positions as the protruding wall hole portions 12D- 1 and 12D- 2 of the socket-side housing 10 in the terminal arrangement direction, respectively. Below the socket side housing 10 . Then, the locking clip 30 is moved upward, and the supported parts 34A and 34B are inserted into the protruding wall hole parts 17D-1 and 17D-2, respectively.

In addition, when the locking clip 30 is accommodated, the locking clip 30 moves upward in the locking clip accommodating groove 17, and the front end pieces 45A-1 and 45B- 1 is pressed forward to elastically deform the elastic pieces 45A and 45B forward. Then, when the lateral parts 34A-1 and 34B-1 of the supported parts 34A and 34B of the lock fastener 30 are moved to the upper side of the front support part 12A-1 and the rear support part 12C-2, respectively, the elastic pieces The restoring force of 45A and 45B pushes the pushed portion 35 back toward the rear. its knot As a result, the locking clasp 30 reaches the locked position. At this time, the lateral portions 34A- 1 and 34B- 1 of the supported portions 34A and 34B of the lock fastener 30 abut against the locking position side restricting portions 12A- 3 and 12C- 3 of the socket-side housing 10 from the front, respectively. Thus, the movement of the locking clasp 30 toward the rear is restricted, and the locking clasp is surely maintained in the locked position.

As a result, at the locking position, the respective lateral portions 34A-1 and 34B-1 of the supported portions 34A and 34B come to directly above the front support portion 12A-1 and the rear support portion 12C-2. Therefore, as shown in FIG. 5 , the respective lateral portions 34A-1 and 34B-1 are supported by the front support portion 12A-1 and the rear support portion 12C-2 in such a way that they can be locked downward, preventing the locking clip 30 from passing from the socket-side housing. Body 10 falls off. In addition, the locking protrusions 33A and 33B of the locking clip 30 protrude rearward from the front end wall and the rear protruding wall 12 of the socket-side housing 10 , respectively, and are located in the receiving portion 16 . In this way, the locking clip 30 and the housing member 40 are attached to the receptacle side housing 10 , thereby completing the receptacle connector 1 .

In this way, the locking fastener 30 is located at the [locking position (FIG. 5 and FIG. 6(A), (B) by receiving the pushing force toward the rearward from the pushing portion 45 of the housing member 40 to prevent the plug connector 2 from being pulled out ) in the position shown)]. In addition, as described later, when the lock release operation is performed, the lock fastener 30 reaches the [lock release position] ( The position shown in Fig. 7(A), (B)). In this way, the locking fastener 30 can move in the front-rear direction (terminal arrangement direction) between the locking position and the unlocking position. That is, when the connector is pulled out, the lock fastener 30 is formed so that the connector can be pulled out only after receiving the operation of moving from the lock position to the lock release position. The so-called complete locking structure in this state has higher locking strength than the conventional simple locking structure. Therefore, the locked state can be maintained more reliably.

In the present embodiment, as shown in FIG. 5 , since the lock fastener receiving groove 17 of the socket side housing 10 has a left-right symmetrical shape, even if the posture shown in FIG. The lock catch 30 can also be accommodated in the lock catch accommodating groove portion 17 . In this case, the unlocked position restricting portions 12B-2 and 12A-2 function as support portions, and the support portions 12A-1 and 12C-2 function as unlocked position restricting portions.

In the present embodiment, the urging portion 45 of the housing member 40 , which urges the biased portion 35 of the locking fastener 30 backward, is in direct contact with the biased portion 35 . As a result, the locking fastener 30 and the housing member 40 are in direct contact with each other. It is electrically connected through the pushing portion 45 . Moreover, the case member 40 is grounded to the circuit board B1 by the connection part 42B. Therefore, even if the receptacle connector 1 is used for high-speed signal transmission, crosstalk between the two terminal rows of the receptacle terminals 20 is prevented by the locking fasteners 30 located between the two terminal rows. Further, in the present embodiment, the side plate portion 42 of the housing member 40 exists on the outer side of each terminal row in the connector width direction (Y-axis direction) (the side opposite to the side where the locking clip 30 is located), and the two terminal rows It is shielded from the outside by the side plate portion 42 . Therefore, the leakage of noise emitted from the socket terminals 20 of the two terminal rows to the outside of the connector and the intrusion of noise from the outside of the connector can be well shielded by the side plate portion 42 . As a result, the situation in which the receptacle connector 1 and the adjacent electronic equipment (not shown) and the like adversely affect each other's signal transmission is eliminated.

Here, as a form of signal transmission when the receptacle connector 1 is used for high-speed signal transmission, for example, a so-called differential signal transmission can be mentioned. Sending form, pseudo-coaxial form, etc. In the differential signal transmission form, in one or both terminal rows, some of the terminals of the plurality of socket signal terminals 20S may be used not as signal terminals but as ground terminals. For example, from the terminal on one end side of the terminal row to the terminal on the other end side, the terminal type is set so that the order of the ground terminal, the signal terminal, and the signal terminal is included, and a pair of adjacent signal terminals transmits a high-speed difference. moving signal. As a result, the pair of signal terminals are adjacent to the ground terminals located on both sides of the pair of signal terminals in the terminal arrangement direction, the locking fasteners 30 located on the inner side in the width direction of the connector, and the outer side in the width direction of the connector. A state in which the side plate portion 42 of the casing member 40 is surrounded and shielded. That is, when the receptacle connector 1 is viewed along the Z2 direction, a pair of signal terminals are tied in the terminal arrangement direction, surrounded by adjacent ground terminals, and in the connector width direction, by the locking fasteners. 30 and the side plate portion 42 surround the periphery.

Also, in the pseudo-coaxial form, as in the differential signal transmission form described above, some of the terminals of the plurality of jack signal terminals 20S are used as ground terminals. To the terminals on the other end, set the types of terminals in the order including the ground terminal and the signal terminal. As a result, a signal terminal is adjacent to the ground terminals located on both sides of the signal terminal, the locking fasteners 30 located on the inner side in the width direction of the connector, and the shell member 40 located on the outer side in the width direction of the connector in the terminal arrangement direction. The state in which the side plate portion 42 is surrounded and shielded forms a pseudo-coaxial structure. That is, when the receptacle connector 1 is viewed along the Z2 direction, the signal terminals are tied in the terminal arrangement direction, surrounded by adjacent ground terminals, and in the connector width direction, It is surrounded by the locking fastener 30 and the side plate portion 42 .

In this way, even in the case where the receptacle connector 1 adopts a differential signal transmission form, a pseudo-coaxial form, etc., a structure in which the signal terminals are substantially shielded can be achieved, crosstalk can be prevented, and the radiation emitted from the signal terminals can be well shielded. Noise leaks to the outside of the connector, noise penetrates from the outside of the connector, and the like.

As mentioned above, the push portion can also be used as a push member that is provided separately from the casing member. In this case, the push member needs to lock the push portion of the fastener and the outer end plate of the casing member in advance. Both sides are electrically connected.

In the present embodiment, the locking fastener 30 is produced by cutting a rod-shaped metal member, but instead of this method, the locking fastener can also be formed by, for example, real stamping, bending, and bending of a metal plate member. processing, etc. to be produced. In the case where the locking fastener is made of a metal plate member, the locking fastener has its plate surface (the surface at right angles to the plate thickness surface) arranged so as to form a right angle with respect to the width direction of the connector. In this way, by arranging the locking member, noise shielding can be performed over a wide range on the aforementioned plate surface of the locking member, and the size of the locking member in the width direction of the connector is formed as the locking member Therefore, the size of the connector in the connector width direction can be reduced.

Next, the structure of the plug connector 2 will be described with reference to FIGS. 1 , 2 , 6 , and 7 . The plug connector 2 has: a plug-side housing 50 having a substantially rectangular parallelepiped shape; the length direction of the plug-side housing 50 is used as the terminal arrangement direction, and the plug-side housing 50 is arranged and held in two rows as a pair. A plurality of plug terminals 60 like terminals; and two locked fasteners 70 held by end walls 55 described after the aforementioned plug-side housing 50. The plug connector 2 is manufactured by integrally molding the plug-side housing 50 to hold the plurality of plug terminals 60 and the locked fasteners 70 . The plug connector 2 is arranged and mounted on the circuit board B2 in the posture shown in FIG. 2 , and as shown in FIG. 1 , is fitted and connected to the receptacle connector 1 in an upside-down reversed posture.

The plug-side housing 50 is made of an electrical insulating material such as resin, and extends in a direction parallel to the mounting surface of the circuit board as a longitudinal direction (terminal arrangement direction). The plug-side housing 50 has a bottom wall 51 (see FIG. 1 ) parallel to the above-mentioned mounting surface, and a peripheral wall as a frame-shaped fitting portion rising upward from the bottom wall 51 as shown in FIG. 2 . 53. The peripheral wall 53 has: a pair of side walls 54 extending in the terminal arrangement direction (X-axis direction); The ends of the side walls 54 are connected to each other by a pair of end walls 55 . A space surrounded by the peripheral wall 53 and open upward (Z2 direction) in FIG. 2 is formed as a receiving portion 56 for receiving the protruding wall 12 of the receptacle connector 1 . In addition, the end wall 55 is formed with an end groove 55A penetrating in the terminal arrangement direction (X-axis direction) and the vertical direction (Z-axis direction) at the center position in the connector width direction (Y-axis direction). As shown in FIG. 2, the end groove portion 55A is connected to the inner side wall surface facing each other in the connector width direction and the lower portion of each other at the inner position in the terminal arrangement direction (position on the receiving portion 56 side).

The above-mentioned plug side housing 50 is in the form of holding the plug terminal 60 and the locked clasp 70, but in order to understand this form, it will be described in further detail. Before the plug side housing 50, the plug terminal 60 and the locked fastener 70 will be described first.

The plug terminal 60 is produced by bending a strip-shaped piece obtained by punching a metal plate in the plate thickness direction. As shown in FIGS. 1 to 3 , the plug terminals 60 are integrally molded on each side wall 54 of the plug side housing 50 and held, and are arranged at equal intervals with the longitudinal direction of the side walls 54 serving as the terminal arrangement direction. In the present embodiment, the plurality of plug terminals 60 have plug signal terminals 60S and plug power terminals 60P arranged to correspond to the socket signal terminals 20S and the socket power terminals 20P, respectively. That is, on both outer sides of the arrangement range of the plug signal terminals 60S, one plug power supply terminal 60P is disposed each.

As shown in FIG. 3 , the plug signal terminal 60S has: a linear connecting portion 61S extending outward in the width direction of the connector at substantially the same height as the bottom wall 51 of the plug side housing 50 ; and the connecting portion 61S It is continuous and curved downward (upward in FIG. 2 ), extends into a U-shape (inverted U-shape in FIG. 2 ), and is buried and held by the held portion 62S of the side wall 54 .

The U-shaped held portion 62S has its inner leg in the width direction of the connector formed as a contact leg 62AS for contacting with the receptacle terminal 20 of the receptacle connector 1, and the outer leg is formed as a contact leg 62AS. The locking leg portion 62BS for locking the socket terminal 20 described above. The contact leg portion 62AS extends along the inner surface of the side wall 54 (the surface forming the receiving portion 56 ), and is exposed to the receiving portion 56 so that the plate surface of the contact leg portion 62AS is formed to be the same surface as the inner surface of the side wall 54 . . In addition, the locking leg portion 62B extends along the outer surface of the aforementioned side wall 54, so that the plate surface of the locking leg portion 62BS It is exposed so as to form the same surface as the outer surface of the side wall 54 . A locking step portion 62B-1S for locking with the locking portion 23AS of the receptacle signal terminal 20S of the receptacle connector 1 is formed on the exposed plate surface of the locking leg portion 62BS.

The basic structure of the plug power terminal 60P is the same as that of the plug signal terminal 60S, and is formed in the same shape as the plug signal terminal 60S when viewed in the terminal arrangement direction. As shown in FIGS. 1 and 2 , in the plug power supply terminal 60P, the portion corresponding to the plug signal terminal 60S is shown by assigning the symbol [P] instead of [S]. The plug power terminal 60P is different from the plug signal terminal 60S in that the size in the terminal width direction (terminal arrangement direction) is larger than that of the plug signal terminal 60S. The locking step portion 62B-1P is formed to have the same height as the locking step portion 62B-1S of the plug signal terminal 60S.

As shown in FIGS. 1 and 2 , the locked fasteners 70 are disposed on both sides of the end groove portion 55A in the connector width direction, and are held on the end wall 55 by integral molding. These locked fasteners 70 are formed in symmetrical shapes with each other in the connector width direction, and are formed by bending a metal plate member in the plate thickness direction. As shown in FIG. 2, each of the locked fasteners 70 has a base portion 71 (refer to FIG. 1) extending along the bottom surface of the plug-side housing 50; In FIG. 1, it is a rising part 72 standing up; from the upper part of the rising part 72, it protrudes inward in the connector width direction, that is, the protrusion part 70A which protrudes toward the end groove part 55A; and the connector width from the base part 71 The end portion on the outer side in the direction rises upward, and the side plate portion 76 faces the rising portion 72 in the connector width direction. When the locked fastener 70 is viewed in the direction of terminal arrangement, the base 71, The upright portion 72 and the side plate portion 76 are formed in a substantially U-shape.

The base portion 71 has a connecting portion 71A extending outward in the terminal arrangement direction and the connector width direction. As shown in FIGS. 1 and 2 , the connecting portion 71A extends toward the outside of the plug-side housing 50 and is soldered to a corresponding circuit portion (not shown) on the mounting surface of the circuit board B2 . Furthermore, in this embodiment, as shown in FIG. 1 , the bottom surface (upper surface in FIG. 1 ) of the base portion 71 is exposed from the bottom surface of the plug-side housing 50 so as to cover the entire area thereof. Therefore, the base portion 71 except for Parts other than the aforementioned connecting portion 71A can also be welded to the corresponding portion of the mounting surface.

The protruding portion 70A protrudes from the inner wall surface 55A-1 of the end groove portion 55A (the surface at right angles to the connector width direction) and is located at the end in a state where the locked fastener 70 has been held by the end wall 55 of the plug-side housing 50. inside the groove portion 55A. The inner end of the protruding portion 70A in the terminal arrangement direction is formed as the inner locked portion 73 , and the outer end of the projection 70A in the terminal arrangement direction is formed as the outer locked portion 74 .

In addition, the plate surface of the side plate portion 76 is exposed from the side surface of the end wall 55 of the plug-side housing 50 (the surface at right angles to the connector width direction), and protects the side surface of the end wall 55 . In addition, the side plate portion 76 is in the connector-fitted state, and the plate surface exposed from the side surface of the end wall 55 is in contact with the contact piece 47 of the housing member 40 of the receptacle connector 1 to be electrically connected.

As shown in FIG. 6(A) , in the present embodiment, the outer locked portion 74 of the locked fastener 70 located in the front (right in FIG. 6(A) ) is a front locking convex portion of the locking fastener 30 33A is locked, and the inner locked portion 73 of the locked fastener 70 located at the rear (leftward in FIG. 6(A) ) is connected to the locked fastener. The rear locking protrusion 33B of 30 is locked. Therefore, in this embodiment, the inner locked portion 73 of the locked fastener 70 located in the front and the outer locked portion 74 of the locked fastener 70 located in the rear are not used. In addition, as described above, the locking clip 30 can be installed in a posture in which the posture shown in FIG. 5 is reversed left and right. In this case, the inner locked portion 73 of the locked clip 70 located in the front and The outer locked portion 74 of the rear locked fastener 70 is used as the locked portion.

Next, referring back to FIGS. 1 , 2 , 6 and 7 , the connector fitting operation of the receptacle connector 1 and the plug connector 2 will be described. First, the receptacle connector 1 and the plug connector 2 are respectively mounted on the corresponding circuit boards B1 and B2 by soldering. Next, as shown in FIG. 1 , the receptacle connector 1 is set so that the receiving part 16 faces upward, and the plug connector 2 is set so that the receiving part 56 (refer to FIG. 2 ) is oriented above the receptacle connector 1 . pose below.

Next, while maintaining the posture of FIG. 1, the plug connector 2 is lowered, the protruding wall 12 of the receptacle connector 1 is inserted into the receiving portion 56 of the plug connector 2 from below, and the peripheral wall 53 of the plug connector 2 is removed from the The upper part enters into the receiving portion 16 of the receptacle connector 1 . As a result, the contact leg portion 62A of the plug terminal 60 of the plug connector 2 is brought into contact with the contact portion 22A of the receptacle terminal 20 of the receptacle connector 1 by contact pressure. In addition, the side plate portions 76 of the locked fasteners 70 of the plug connector 2 are in contact with the corresponding contact pieces 47 of the housing members 40 of the receptacle connector 1 by contact pressure.

In addition, during the connector mating process, the locked portions 74 and 73 of the two locked fasteners 70 provided in the plug connector 2 abut against the locked portions 74 and 73 respectively. The upper edges (inclined edges) of the locking protrusions 33A, 33B of the locking fastener 30 at the fixed position are oriented toward the front in the terminal arrangement direction (Fig. 6(A), (B) the right side) with the pressing force. When the locking protrusions 33A and 33B receive the aforementioned pressing force, the locking clip 30 moves forward and reaches the unlocking position (see FIGS. 7(A) and (B) ). At this time, the movement of the locking clasp 30 is allowed by the elastic deformation (compression) of the pushing portion 45 of the locking clasp 30 pressed by the pushing portion 35 .

As described above, when the locking clasp 30 reaches the unlocking position, the plug connector 2 is allowed to descend further. Also, as shown in FIG. 6(A), if the front (right side in FIG. 7(A) ) is locked, the outer side locked portion 74 of the locked fastener 70 and the rear side (the left side in FIG. 6(A) ) are locked When the inner locked portion 73 of the fastener 70 reaches a position lower than the locking protrusions 33A, 33B of the locking fastener 30, the locking protrusions 33A, 33B are released from the aforementioned pressing force. As a result, the pusher portion 45 is returned to the rear, the elastic deformation amount is reduced, and it returns to the initial locked position. As shown in FIG. 6(A), the locking protrusions 33A, 33B returning to the locked position enter and are located above the corresponding locked portions 74, 73, respectively, and the locked portions 74, 73 can be directed toward the connector. The pull-out direction (upward) is locked to be in a locked state. In this way, the terminals 20 and 60 are connected to each other, the contact piece 47 and the side plate portion 76 are connected to each other, and the locking fasteners 30 and 70 are locked to each other, whereby the connector fitting operation is completed.

Next, the connector pull-out operation will be described with reference to FIGS. 7(A) and (B). When the plug connector 2 in the state of being mated with the connector of the receptacle connector 1 is pulled out, as shown in FIG. 7(B), the jig P is inserted into the locking fastener 30 of the receptacle connector 1 from above. Lock release operation portion 36 and housing The release operation is performed between the outer end plate portions 44 of the member 40 . The jig P has a plate-shaped portion whose plate thickness is the front-rear direction, and its plate thickness is larger than the distance between the lock release operation portion 36 and the outer end plate portion 44 . Therefore, when the jig P is inserted from above and the lock release operation portion 36 receives the forward pressing force from the jig P as the release operation force, the elastic pieces 45A and 45B of the push portion 45 of the casing member 40 The resilient portion 35 of the locking clip 30 is pressed to elastically deform forward. In this way, the lock fastener 30 moves forward against the rearward urging force from the casing member 40 and reaches the unlocked position. At this time, the longitudinal portions 34A- 2 and 34B- 2 of the supported portions 34A and 34B of the lock fastener 30 abut against the lock release position side restricting portions 12B- 3 and 12A- 2 of the socket-side housing 10 from the rear, respectively. Thereby, the movement of the lock fastener 30 toward the front is restricted, and the lock fastener is surely maintained at the unlocked position.

When the locking clasp 30 reaches the unlocking position, as shown in FIGS. 7(A) and 7(B) , the locking protrusions 33A, 33B and the locked portions 74 and 73 of the locked clasp 70 of the plug connector 2 are able to communicate with each other. The locked state is released. Then, by lifting the plug connector 2 in the connector pulling direction (upward), the plug connector 2 can be easily pulled out and the connector pulling operation is completed.

In the present embodiment, the lock release operation portion 36 of the lock clasp 30 is located further forward (on the side of the lock release position) than the push portion 45. Therefore, when the lock release operation is performed, the lock clasp 30 is driven by the spring push. The thrust force (rearward force) of the portion 45 and the lock release operation force (forward force) counteracting the thrust force receive the pulling force in the front-rear direction, so there is no Flexural deformation in directions perpendicular to the front-rear direction (up-down direction and connector width direction) is likely to occur. As a result, the lock catch 30 can be smoothly moved to the unlocked position, and the locked state of the lock projections 33A, 33B and the locked portions 74, 73 of the plug connector 2 can be surely released. In addition, it is possible to prevent the lock clasp 30 itself from being damaged due to the flexural deformation of the lock clasp 30 . In addition, it is not necessary to increase the size of the locking clasp 30 in the direction perpendicular to the terminal arrangement direction to ensure the strength of the locking clasp 30 itself in order to prevent flexural deformation, so that the enlargement of the connector can be avoided. .

In the present embodiment, the aforementioned lock release operation is performed using a jig, but it is not always necessary to use a jig. For example, the lock release operation may be performed with fingers, for example, by grasping the lock release operation portion 36 and pulling it forward. .

In this embodiment, as the locking member, the locking clip 30 of a metal member is used, but instead of this structure, for example, a material such as resin may be used to form the locking member.

1‧‧‧Socket Connector

2‧‧‧Plug Connector

10‧‧‧Socket side housing

12‧‧‧Protruding wall

12D‧‧‧Vertical groove

12DS‧‧‧Vertical groove

12DP‧‧‧Vertical groove

12E‧‧‧Side

13‧‧‧The Wall

14B‧‧‧Installation

14A‧‧‧Side recess

14‧‧‧Sidewall

15‧‧‧End Wall

15A‧‧‧End recess

16‧‧‧Receiving Department

17C‧‧‧End wall groove

20‧‧‧Socket terminal

20P‧‧‧socket power terminal

20S‧‧‧Socket signal terminal

22AS‧‧‧contact part

22S‧‧‧contact arm

23S‧‧‧Retained Department

23AS‧‧‧Locking part

23BS‧‧‧Locking part

23BP‧‧‧Locking part

24S‧‧‧Connection

30‧‧‧Locking fastener (locking member)

35‧‧‧Pushing part

36‧‧‧Lock release operation part

40‧‧‧Shell components

41‧‧‧Top plate

41B‧‧‧Side Section

42‧‧‧Side plate

42B‧‧‧Connection

42A‧‧‧Installation groove

44‧‧‧Outer end plate

45A-1‧‧‧Front end piece

45B-1‧‧‧Front end piece

45‧‧‧Pushing part

45A‧‧‧Elastic Sheet

45C‧‧‧Containment Department

45B‧‧‧Elastic Sheet

46‧‧‧End Mounting Tab

47‧‧‧Contact

50‧‧‧Plug side housing

51‧‧‧Bottom wall

55A‧‧‧End groove

60‧‧‧Plug Terminal

60S‧‧‧plug signal terminal

60P‧‧‧Plug Power Terminal

61S‧‧‧Linear connection

70‧‧‧Locked fasteners

71A‧‧‧Connection

71‧‧‧Base

76‧‧‧Side panel

B1‧‧‧Circuit board

Claims (3)

An electrical connector for a circuit board, which is arranged on the mounting surface of the circuit board and is pluggable and connected to a counterpart connector, comprising: A housing made of an insulating material; With the longitudinal direction as the terminal arrangement direction, a plurality of metal terminals arranged in two rows of terminal rows and held in the housing; Arranged in the housing part of the housing, along the terminals The alignment direction is a metal locking member that can move between a locking position capable of preventing the withdrawal of the counterpart connector and a lock release position allowing the withdrawal of the counterpart connector; moving the locking member toward the locking position A push-pulling part made of metal for pushing; and a casing member made of metal mounted on the casing, characterized in that: the locking member is connected in the width direction of the connector, between the two rows of terminal rows, and between the two rows of terminals. The connector is located in a range including at least a part of the terminals in the insertion and removal direction of the connector, and in the terminal arrangement direction, it extends over the range including the arrangement of the terminals. The side plate portion extending over the range including the terminal arrangement range in the arrangement direction; and the connecting portion that can be connected to the corresponding circuit portion of the circuit substrate, the locking member and the housing member are electrically connected through the pushing portion. The electrical connector for a circuit board according to claim 1, wherein the pushing portion and the housing member are integrally formed. The electrical connector for a circuit board according to claim 1 or 2, wherein the locking member is made of a metal plate, and the plate surface at right angles to the plate thickness direction thereof is arranged so as to be aligned with the plate surface of the side plate portion of the casing member. parallel.

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