JP7286144B2 - electrical connector - Google Patents

Description

The present invention relates to electrical connectors. In particular, in an electrical connector for electrically connecting a pair of printed circuit boards arranged facing each other, in order to maintain the mated state of an electrical connector mounted on one printed circuit board and an electrical connector mounted on the other printed circuit board. relates to the structure of an electrical connector with a locking function.

A board-to-board connector that electrically connects one printed board and the other printed board that are arranged to face each other is called, for example, a board-to-board connector (BtoB connector).

Such a board-to-board connector has a locking function for maintaining the mating state of the electrical connector mounted on one printed board and the electrical connector mounted on the other printed board.

In addition, since such a board-to-board connector is required to have a low profile in the direction in which the one electrical connector and the other electrical connector are mated, the mated state of the one electrical connector and the other electrical connector is required. An electrical connector is disclosed that can maintain the height of the electrical connector and achieve a low profile in the direction in which one electrical connector and the other electrical connector are mated (see, for example, Patent Document 1).

JP 2018-45992 A

8A and 8B are perspective views showing the configuration of an electrical connector according to the prior art, FIG. 8A is a diagram of a state in which one electrical connector and the other electrical connector are arranged to face each other, and FIG. It is a state figure which reversed the upper and lower sides of (A).

9A and 9B are diagrams showing the configuration of an electrical connector according to the prior art, FIG. 9A is a perspective view of a lock fitting provided on one electrical connector, and FIG. 9B is a latch provided on the other electrical connector. It is a perspective view of metal fittings.

10A and 10B are longitudinal sectional views showing the configuration of a conventional electrical connector, FIG. 10A is a state in which one electrical connector and the other electrical connector are locked, and FIG. FIG. 4 is a state diagram in which the electrical connector and the other electrical connector are unlocked;

8A and 8B of the present application correspond to FIGS. 1 and 2 of Patent Document 1. FIG. 9A and 9B of the present application correspond to FIGS. 3A and 5A of Patent Document 1. FIG. Furthermore, FIG. 10 of the present application corresponds to FIG. 7 of Patent Document 1. FIG.

Referring to FIG. 8, the prior art electrical connector has one electrical connector (hereinafter referred to as receptacle) 8 and the other electrical connector (hereinafter referred to as plug) 9 facing each other. The receptacle 8 is mounted on one printed circuit board (not shown). The plug 9 is mounted on the other printed circuit board (not shown).

Referring to FIG. 8, by fitting plug 9 toward receptacle 8, one printed circuit board (not shown) can be electrically connected to the other printed circuit board (not shown).

Referring to FIG. 8, the receptacle 8 has a plate-like housing 81 and a plurality of bellows-shaped contacts 82. As shown in FIG. The housing 81 is formed in a rectangular shape. Moreover, the housing 81 has a rectangular pedestal portion 81d protruding from the central portion (see FIG. 8A).

Referring to FIG. 8, a plurality of contacts 82 are arranged in two rows inside housing 81 . Also, the plurality of contacts 82 are arranged to face each other with the pedestal portion 81d therebetween. A part of the contact 82 is exposed from the bottom surface of the housing 81 (see FIG. 8B) and can be soldered to one printed circuit board (not shown). That is, the receptacle 8 is a surface-mounted connector that can be soldered to the surface of the printed circuit board.

Also, referring to FIG. 8, the receptacle 8 is provided with a shell 84 consisting of a lock fitting 83 and a shield member. The lock fitting 83 is formed by folding a metal deployment plate (not shown) into mountain folds and valley folds (see FIG. 9A).

Further, referring to FIG. 9A, the lock fitting 83 has an operation portion 831 formed on one end side. Further, the lock fitting 83 forms a slide portion 832 continuously extending from the operation portion 831 toward the other end side in a strip shape. The slide portion 832 tightly bends a metal development plate (not shown) in mountain folds and valley folds.

Referring to FIG. 8A, the operating portion 831 protrudes from one end of the shell 84 via a pair of snake springs 84s, 84s, which are formed on one end of the shell 84 and will be described later. Referring to FIG. 8B, the slide portion 832 is slidably held on the bottom surface of the housing 81 while extending through the housing 81 . The lock fitting 83 can move in the direction of X1-X2 in the drawing with respect to the housing 81. As shown in FIG.

Referring to FIG. 8A, the shell 84 has a rectangular body portion 84b and a pair of snake springs 84s. A pair of snake springs 84s, 84s are formed on one end side of the body portion 84b. The body portion 84 b covers the peripheral wall of the housing 81 . Also, the main body portion 84b has an opening at the center so as not to come into contact with the plurality of contacts 82. As shown in FIG.

Referring to FIG. 8 , the pair of snake springs 84 s and 84 s apply force in the direction in which the operating portion 831 protrudes from one end of the shell 84 . By pushing the operation part 831 against the pair of snake springs 84s, 84s, the lock fitting 83 can be retracted with respect to the housing 81. As shown in FIG. By releasing the operation portion 831 , the lock fitting 83 can be advanced with respect to the housing 81 .

Referring to FIG. 8, the plug 9 comprises a plate-like housing 91 and a plurality of bellows-shaped contacts 92. The housing 91 is formed in a rectangular shape. Further, the housing 91 has a recess 91c at its center, into which the pedestal 81d can be introduced (see FIG. 8(B)).

Referring to FIG. 8, a plurality of contacts 92 are arranged in two rows outside the housing 91 . Also, the plurality of contacts 92 are arranged to face each other with the concave portion 91c therebetween. A part of the contact 92 is exposed from the bottom surface of the housing 91 (see FIG. 8A) and can be soldered to the other printed circuit board (not shown). That is, the plug 9 is a surface-mounted connector that can be soldered to the surface of the printed circuit board.

Both ends of the contact 92 can contact ground contacts provided on the shell 84 .

8, the plug 9 has a pair of latch fittings 93, 93 secured to opposite ends of the housing 91. As shown in FIG. Referring to FIG. 9B, the latch fitting 93 has a slit-shaped notch 93s cut from above. The slide portion 832 can be introduced from the plate thickness direction into the notch portion 93s. A pair of claw portions 93n and 93n are formed on both sides of the notch portion 93s.

Referring to FIG. 9A, the lock fitting 83 has a pair of first hooks h1 and h1 arranged in front and behind the slide portion 832 . Also, the slide portion 832 has a pair of second hooks h2 and h2 arranged between a pair of first hooks h1 and h1.

Referring to FIG. 10, the first hook h1 can be engaged with the claw 93n of the latch fitting 93. As shown in FIG. Referring to FIG. 8 or 10, the base portion 81d has a pair of hook-shaped claw pieces 81n, 81n provided at the bottom. The second hook portion h2 can be engaged with the claw piece 81n of the base portion 81d.

Referring to FIG. 10, when the plug 9 is moved toward the receptacle 8, the corner of the claw 93n contacts the corner of the first hook h1, and the corner of the claw 81n contacts the second hook. By coming into contact with the corner h2, the locking metal fitting 83 can be moved in the direction of X1 in the drawing against the biasing force of the snake spring 84s (see FIG. 10B).

10, the plug 9 is further moved toward the receptacle 8, and when the tip surfaces of the claw portion 93n and the claw piece 81n come close to the bottom surface of the cutout portion of the lock fitting 83, the housing 81 is closed. On the other hand, the lock fitting 83 can be returned in the direction of X2 in the drawing (see FIG. 10(A)). As a result, the first hook h1 can be engaged with the claw 93n, and the second hook h2 can be engaged with the claw 81n.

From the state shown in FIG. 10(A), when the operating portion 831 is pushed in the direction of X1 in the drawing, the lock fitting 83 can be moved to the state shown in FIG. can be released.

It is stated that the electrical connector according to Patent Document 1 can maintain the mated state of the receptacle and the plug, and can achieve a low profile in the mating direction of the receptacle and the plug.

However, referring to FIG. 8, in the electrical connector according to Patent Document 1, the operation portion 831 of the lock fitting 83 protrudes outside the connector main body, so that if a finger or the like carelessly touches the operation portion 831, the lock will be released. I'm worried about

Further, referring to FIG. 10, a pair of claw pieces 81n, 81n are engaged with a pair of second hooks h2, h2, thereby suppressing bending (lifting) of the central portion of the plug 9. Since the claw piece 81n is formed of synthetic resin for the second hook h2, there is a concern that the claw piece 81n may be damaged.

An electrical connector that has a locking function to maintain the mating state of an electrical connector mounted on one printed circuit board and an electrical connector mounted on the other printed circuit board, and is designed to prevent accidental release of the locked state. There is a demand for an electrical connector that can suppress this and also reliably maintain the mated state of one electrical connector and the other electrical connector. And the above can be said to be the subject of the present invention.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electrical connector capable of suppressing inadvertent release of the locked state and capable of reliably maintaining the mated state. .

The present inventor provided the first electrical connector with a slide button for releasing the locked state of the first electrical connector and the second electrical connector, and arranged the operation surface of the slide button on one surface of the first housing of the first electrical connector. By arranging them substantially flush with each other, it is thought that careless operation of the slide button can be suppressed, and based on this, the following new electrical connector has been invented.

(1) An electrical connector according to the present invention is an electrical connector for electrically connecting a first electrical connector mounted on one printed circuit board and a second electrical connector mounted on the other printed circuit board, wherein the first electrical connector comprises a flat plate-like rectangular first housing having a recess in the center for receiving the second electrical connector, a plurality of first contacts arranged along the inner wall of the recess, and a plurality of hooks. a band-shaped lock fitting provided on one end side and arranged movably longitudinally in the interior of the first housing with the plurality of hooks exposed from the bottom surface of the recess; a slide button freely held and connected to one end of the lock fitting; and a slide button disposed inside the first housing for urging the lock fitting to move in one direction via the slide button. and an urging member, wherein the second electrical connector has an outer shape that can be fitted into the recess, and has a flat plate-like rectangular base that protrudes from a central portion so as to be able to come close to or abut on the bottom surface of the recess. 2 housings, a plurality of second contacts arranged along side edges of the second housing and connectable with the first contacts, and a latch member disposed within the base and engageable with the barbs. , and the operation surface of the slide button is arranged substantially flush with one surface of the first housing.

(2) The latch member is preferably made of a U-shaped bent metal plate into which the hook can be inserted.

(3) It is preferable that the first housing is arranged on the side opposite to the slide button and has an unlocking hole for inserting a tool to move the lock fitting in the other direction.

In the electrical connector according to the present invention, the first electrical connector is provided with a slide button for releasing the locked state of the first electrical connector and the second electrical connector, and the operation surface of the slide button is located on one side of the first housing of the first electrical connector. By arranging it substantially flush with the surface of the slide button, it is possible to suppress careless operation of the slide button.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the structure of the electrical connector by one Embodiment of this invention, FIG.1(A) is a state figure in which the 1st electrical connector and the 2nd electrical connector were fitted, FIG.1(B) is a 1st electrical connector. FIG. 4 is a state diagram before the electrical connector and the second electrical connector are mated; FIG. 2 is a perspective view in which the front and back surfaces of FIG. 1 are reversed, FIG. 2A is a diagram showing a state in which the first electrical connector and the second electrical connector are fitted together, and FIG. 2 is a state diagram before the electrical connectors are mated; FIG. FIG. 2 is a perspective exploded view showing the configuration of the first electrical connector, and is a state view of the first electrical connector viewed from the surface side; FIG. 2 is a perspective exploded view showing the configuration of the first electrical connector, and is a state view of the first electrical connector as seen from the back side; 5(A) is a perspective view of the second electrical connector viewed from the back side, and FIG. 5(B) is a perspective view of the second electrical connector viewed from the back side. FIG. 1 is an exploded view; FIG. 6(A) is a longitudinal sectional view showing the configuration of the electrical connector according to the embodiment, FIG. 6(A) is a state diagram before the first electrical connector and the second electrical connector are fitted together, and FIG. 6(B) is a first FIG. 6(C) shows a state in which the electrical connector and the second electrical connector are being fitted together, and FIG. 6C is a state diagram where the first electrical connector and the second electrical connector are fitted together. 7(A) is a plan view of the electrical connector, and FIGS. 7(B) to 7(F) are diagrams showing the configuration of the electrical connector according to the embodiment, and FIGS. It is a state change diagram shown in a cross-sectional view. FIG. 8A is a perspective view showing the configuration of an electrical connector according to the prior art, FIG. 8A is a state diagram in which one electrical connector and the other electrical connector are arranged to face each other, and FIG. It is a state diagram in which the top and bottom are reversed. 9(A) is a perspective view of a locking metal fitting provided on one electrical connector, and FIG. 9(B) is a perspective view of a latch metal fitting provided on the other electrical connector; FIG. is. FIG. 10A is a longitudinal sectional view showing the configuration of an electrical connector according to the prior art, FIG. 10A is a state in which one electrical connector and the other electrical connector are locked, and FIG. is a state diagram in which the electrical connector is unlocked.

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated with reference to drawings.
[Configuration of electrical connector]
First, the configuration of an electrical connector according to one embodiment of the invention will be described.

(overall structure)
1 to 5, an electrical connector 100 according to one embodiment of the present invention can electrically connect a first electrical connector (hereinafter referred to as receptacle) 10 and a second electrical connector (hereinafter referred to as plug) 20. .

Referring to FIG. 1, the receptacle 10 is mounted on one printed circuit board 1p. The plug 20 is mounted on the other printed circuit board 2p. For example, one printed board 1p can use a hard rigid board. A soft flexible substrate (FPC) can be used for the other printed circuit board 2p.

Referring to FIG. 1B, by fitting the plug 20 toward the receptacle 10, the electrical connector 100 according to the embodiment can electrically connect one printed circuit board 1p and the other printed circuit board 2p. .

(Structure of first electrical connector)
Next, the configuration of the receptacle 10 according to the embodiment will be described. 1 to 4, the receptacle 10 includes a flat rectangular first housing 1, a plurality of bellows-shaped first contacts 3, and a box-shaped shell 5 made of a shield member.

Referring to FIG. 1(B) or FIG. 3, the first housing 1 has a rectangular recess 11 opening in the center. A plug 20 can be fitted into the concave portion 11 (see FIG. 1(A)).

Referring to FIG. 1B, the multiple first contacts 3 are arranged in two rows along the inner wall of the recess 11 . Also, the plurality of first contacts 3 are arranged to face each other with the concave portion 11 therebetween. A part of the first contact 3 is exposed from the bottom surface of the first housing 1 (see FIG. 2) and can be soldered to one printed circuit board 1p. In other words, the receptacle 10 is a surface-mounted connector that can be soldered to the surface of the printed circuit board.

Referring to FIG. 3 or 4, the first contact 3 includes a signal first contact 3s and a power supply first contact 3p. The first contacts 3s for signals are arranged in the central portion. The power supply first contacts 3p are arranged at both ends of the plurality of signal first contacts 3s.

Referring to FIG. 1, shell 5 covers the peripheral wall of first housing 1 . Also, the shell 5 has an opening in the center so as not to come into contact with the plurality of first contacts 3 (see FIG. 3 or 4). The shell 5 also has a pair of ground springs 5s, 5s extending toward the central opening. A pair of ground springs 5 s and 5 s can maintain the state in which the shell 5 covers the peripheral wall of the first housing 1 .

Referring to FIGS. 1 to 6, the receptacle 10 further includes a strip-shaped lock fitting 71, a slide button 72, and a snake spring 73 as a biasing member.

Referring to FIG. 3 or 4, the lock fitting 71 is formed by bending a strip-shaped metal development plate (not shown) into a U shape. The lock fitting 71 has a plurality of L-shaped hooks formed at one end of one side of opposing plate pieces (see FIG. 6). These hooks consist of a pair of first hooks 711 and 711 and three second hooks 712 (see FIG. 6).

Referring to FIG. 1(B) or FIG. 2, the lock fitting 71 is configured such that a pair of first hooks 711 and 711 and three second hooks 712 are exposed from the bottom surface of the recess 11 (see FIG. 1(B)). )), and is arranged movably longitudinally in the interior of the first housing 1 .

1 to 4 or 6, the slide button 72 is movably held inside the first housing 1. As shown in FIG. Also, the slide button 72 is connected to one end of the lock fitting 71 . By operating the slide button 72 , the lock fitting 71 can be moved, and by biasing the slide button 72 with the snake spring 73 , the lock fitting 71 can be moved.

3 or 4 and 6, the snake spring 73 is arranged inside the first housing 1 . The snake spring 73 applies force to move the lock fitting 71 in one direction via the slide button 72 . It can also be said that the snake spring 73 applies force to keep the receptacle 10 and the plug 20 locked. Instead of the snake spring 73, a compression coil spring (not shown) can be used as the biasing member.

1 or 3 and 6, the slide button 72 has a plurality of pleats on its operation surface 72s. The slide button 72 can be moved by operating the operation surface 72s with a fingertip or the like.

1 or 3 and 6, in the receptacle 10 according to the embodiment, the operation surface 72s of the slide button 72 is arranged substantially flush with one surface of the first housing 1, so that the slide button 7 can be Careless operation can be suppressed.

(Structure of first housing)
Next, the configuration of the first housing 1 according to the embodiment will be described. Referring to FIGS. 1 to 4 or 6, the first housing 1 is preferably made of insulating synthetic resin. A desired shape of the first housing 1 can be obtained by molding an insulating synthetic resin.

Referring to FIG. 1(B) or FIGS. 4 and 6, the first housing 1 has a pair of hook-shaped claws 11n, 11n formed at both ends of the bottom surface of the recess 11. As shown in FIG. As shown in FIG. 6C, the claw portion 11n is normally engaged with the first hook portion 711. As shown in FIG. As shown in FIG. 6(A) or FIG. 6(B), when the lock fitting 71 is moved in the direction of X1 in the drawing with respect to the first housing 1, the engagement between the claw portion 11n and the first hook portion 711 is disengaged. can be released.

1 or 3 and 4 or 6, the first housing 1 has an unlocking hole 12h. The hole 12h is arranged on the side opposite to the slide button 72. As shown in FIG. Referring to FIG. 6(C), the other end of the lock fitting 71 enters directly below the hole 12h. 6(C), by inserting a tool T such as a flat-blade screwdriver into the hole 12h, the lock fitting 71 can be moved in the direction of X1 in the drawing, and the locked state of the receptacle 10 and the plug 20 can be released.

(Structure of lock fitting)
Next, the configuration of the lock fitting 71 according to the embodiment will be described. 3 or 4 and 6, the lock fitting 71 has a pair of first hook portions 711, 711 arranged in front and rear in the longitudinal direction. Also, the lock fitting 71 has three second hooks 712 arranged between a pair of first hooks 711 and 711 .

Referring to FIG. 6, the first hook 711 can be engaged with the pawl 11n. The second hook portion 712 can be engaged with a later-described latch member 6 provided on the plug 20 . The action of the second hook portion 712 and the latch member 6 will be described later.

(Configuration of second electrical connector)
Next, the configuration of the plug 20 according to the embodiment will be described. 1 or 2 and 5 , the plug 20 includes a flat rectangular second housing 2 , a plurality of bellows-shaped second contacts 4 , and a plurality of latch members 6 .

1 or 2 and 5, the second housing 2 forms a rectangular profile that can be fitted into the recess 11 of the first housing 1. As shown in FIG. The second housing 2 has a square base 21 protruding from the center. The base portion 21 can come close to or abut on the bottom surface of the concave portion 11 with its tip surface.

1 or 2 and 5, the plurality of second contacts 4 are arranged in two rows along the side edge of the second housing 2. As shown in FIG. Also, the plurality of second contacts 4 are arranged to face each other with the base portion 21 therebetween. A part of the second contact 4 is exposed from the bottom surface of the second housing 2 (see FIG. 1) and can be soldered to the other printed circuit board 2p. That is, the plug 20 is a surface-mounted connector that can be soldered to the surface of the printed circuit board.

Referring to FIG. 5, the second contact 4 includes a second contact 4s for signal and a second contact 4p for power. The signal second contacts 4s are arranged in the central portion. The power supply second contacts 4p are arranged at both ends of the plurality of signal second contacts 4p.

Referring to FIG. 1B, when plug 20 is fitted toward receptacle 10, first contact 3 and second contact 4 can be electrically connected.

Further, referring to FIG. 5, a pair of ground contacts 4g are arranged at both ends of the second contact 4. As shown in FIG. A portion of the ground contact 4g is soldered to the other printed circuit board 2p (see FIG. 1).

Referring to FIG. 1B, when the plug 20 is fitted toward the receptacle 10, the ground contact 4g can be brought into contact with the ground spring 5s (see FIG. 3 or 4). As a result, the grounds of one printed circuit board 1p and the other printed circuit board 2p can be set to the same potential.

Referring to FIG. 5B, the latch member 6 is made of a U-shaped bent metal plate. These latch members 6 are press-fitted from the bottom surface of the second housing 2 with the bottom side leading (see FIG. 1). These latch members 6 are arranged inside the base portion 21 .

The operation of these latch members 6 will be described later, but the latch member 6 can introduce the second hook portion 712 inside the U-shaped bent metal plate (see FIG. 3 or FIG. 5). The latch member 6 can then engage with the second hook 712 .

(Configuration of second housing)
Next, the configuration of the second housing 2 according to the embodiment will be described. 1 or 2 and 5, the second housing 2 is preferably made of insulating synthetic resin. A desired shape of the second housing 2 can be obtained by molding an insulating synthetic resin.

Referring to FIG. 2(B) or FIG. 5, the second housing 2 has a slit-like groove 21h formed from the tip surface of the base portion 21. As shown in FIG. A second hook portion 712 can be introduced into the groove 21h (see FIG. 3 or 4). After the second hook portion 712 is introduced into the groove 21h, the second hook portion 712 can be introduced into the latch member 6 by moving the lock fitting 71 in one direction.

[Function of electrical connector]
Next, while describing the operation of the electrical connector 100 according to the embodiment, the action and effect of the electrical connector 100 will be described.

First, referring to FIG. 7B, the base portion 21 formed in the plug 20 and the bottom surface of the recessed portion 11 formed in the receptacle 10 are arranged to face each other. Next, from the state shown in FIG. 7(B), the plug 20 is moved toward the receptacle 10 (see FIG. 7(C)).

In the state shown in FIG. 7C, the corners of the second housing 2 are in contact with the corners of the slide button 72 . Next, from the state shown in FIG. 7(C), the plug 20 is further moved toward the bottom surface of the recess 11 of the receptacle 10 (see FIG. 7(D)).

In the state shown in FIG. 7(D), the plug 20 is restrained by the recess 11 of the receptacle 10, so the slide button 72 is moved in the direction of X1 in the drawing against the biasing force of the snake spring 73. . By moving the slide button 72, the lock fitting 71 can be moved in the direction of X1 in the drawing (see FIG. 6A).

Next, from the state shown in FIG. 7(D), the plug 20 is further moved toward the bottom surface of the recess 11 of the receptacle 10 (see FIG. 7(E)). In the state shown in FIG. 7(E), the plug 20 is restrained by the concave portion 11 of the receptacle 10, so the slide button 72 is further moved in the direction of X1 in the drawing against the biasing force of the snake spring 73. Let By moving the slide button 72, the lock fitting 71 can be further moved in the direction of X1 in the drawing (see FIG. 6B).

In the state shown in FIG. 6(B) or FIG. 7(E), a pair of second hooks 712 and 712 are in the groove 21h of the base portion 21 . Next, from the state shown in FIG. 7(E), the plug 20 is further moved toward the bottom surface of the recess 11 of the receptacle 10 (see FIG. 7(F)).

In the state shown in FIG. 6(B) or FIG. 7(E), the tip surface of the base portion 21 is close to or in contact with the bottom surface of the recess portion 11 . In the state shown in FIG. 6(B) or FIG. 7(E), part of the second housing 2 bites into the slide button 72 and is biased by the snake spring 73 to move the slide button 72 to X2 in the figure. direction can be restored (see FIG. 6(F)).

In the state shown in FIG. 6(C) or FIG. 7(F), the return of the slide button 72 causes the lock fitting 71 to move in the direction of X2 in the figure. In the state shown in FIG. 6(C) or FIG. 7(F), the multiple second hooks 712 are engaged with the latch member 6 . That is, the receptacle 10 and the plug 20 are locked.

In the state shown in FIG. 6(C) or FIG. 7(F), since the plurality of second hooks 712 are engaged with the latch member 6, the plurality of first contacts 3 and the plurality of second contacts 4 are connected. It is possible to suppress swelling of the central portion of the second housing 2 due to the connection.

By operating the slide button 72 from the state shown in FIG. 6(C) or FIG. 7(F) to move in the direction of X1 in the drawing, the locked state of the receptacle 10 and the plug 20 can be released.

While the operating portion of the lock fitting according to the prior art was external to the connector body, the operating portion of the lock fitting according to the present invention is internal to the connector body and the operation surface of the slide button is located on the first housing. Since it is arranged substantially flush with one surface, it is possible to prevent the locked state from being released carelessly.

In the conventional electrical connector, the synthetic resin claw provided on the plug engages with the metal hook provided on the receptacle, thereby suppressing the bending (lifting) of the central portion of the plug. However, in the electrical connector according to the present invention, since the metallic hook portion and the metallic latch member are engaged with each other, the bending (lifting) of the central portion of the plug can be reliably suppressed.

Furthermore, in the electrical connector of the present invention, the unlocking hole for inserting a tool to move the lock fitting in the other direction is opened on the side opposite to the slide button, so that the locked state may be released inadvertently. can be suppressed.

The electrical connector according to the present invention can also use compression coil springs instead of snake springs. Also, the lock fitting and the slide button may be integrally configured. Further, plate pieces having a plurality of hook portions formed thereon may be overlapped by close contact bending for reinforcement.

Although the electrical connector according to the present invention has been disclosed in an embodiment suitable for a board-to-board connector, the electrical connector according to the present invention can be applied to a wire-to-board connector that electrically connects a wire and a printed circuit board. Be expected.

REFERENCE SIGNS LIST 1 first housing 1p one printed circuit board 2 second housing 2p other printed circuit board 3 first contact 4 second contact 6 latch member 10 receptacle (first electrical connector)
11 recess 20 plug (second electrical connector)
21 base portion 71 lock fitting 72 slide button 73 snake spring (biasing member)
100 electrical connector

Claims (3)

An electrical connector (100) for electrically connecting a first electrical connector (10) mounted on one printed circuit board ( 1p ) and a second electrical connector (20) mounted on the other printed circuit board (2p) ,
Said first electrical connector (10) comprises:
a flat plate-like rectangular first housing ( 1 ) having a concave portion (11) opened in the center thereof, into which the second electrical connector (20) can be substantially fitted;
a plurality of first contacts (3) arranged along the inner wall of the recess (11) ;
A locking metal fitting (71) formed by bending a strip-shaped development plate made of metal into a U shape, and a plurality of L-shaped hooks (711 and 712) formed on one side in the width direction of opposing plate pieces. A band - shaped lock fitting ( 71 ) and
a slide button (72) movably held inside the first housing (1) and connected to one longitudinal end of the lock fitting (71) ;
A biasing member (73) disposed inside the first housing (1) and biasing the lock fitting (71) in one direction (X2) via the slide button (72). and
Said second electrical connector (20) comprises:
a flat plate-like rectangular second housing (2 ) having an outer shape that can be fitted into the recess (11 ) and protruding from the central portion a base (21) that can come close to or abut on the bottom surface of the recess (11); ,
a plurality of second contacts ( 4 ) arranged along a side edge of the second housing (2) and connectable with the first contacts (3) ;
a latch member (6) disposed inside the base (21) and capable of engaging with the hooks (711 and 712);
The electrical connector, wherein the operation surface of the slide button (72) is substantially flush with one surface of the first housing (1) in the plate thickness direction . 2. The electrical connector according to claim 1, wherein said latch member (6) is made of a U-shaped bent metal plate into which a plurality of said hooks (711, 712) can be introduced. The first housing (1) is arranged on the side opposite to the slide button (72), and a tool is inserted to engage the lock fitting (71) at the other end in the longitudinal direction to 3. The electrical connector according to claim 1, further comprising an unlocking hole (12h) for moving the connector 71) in the other direction (X1).

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