TWM469657U - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector for an electronic card.

Generally, the electrical connector of the inserted electronic card is provided with a detection switch to detect whether the electronic card is inserted. For example, the Taiwan Patent Publication No. TW201223033 (corresponding to the Chinese Patent Publication No. CN102480068, US Patent Publication No. US20120129370, Japanese Patent Publication No. JP2012114089) discloses a drawer type card connector whose detection switch is provided by a switch terminal provided on the insulative housing, and The switch piece is integrally formed with the shielding shell. The switch piece is horizontally cantilevered on one side of the shielding shell and is elastically displaced to form an electrical connection with the switch terminal. After the tray is inserted, the switch piece is pushed to separate from the switch terminal to form an open circuit, thereby detecting whether the tray is placed.

However, since the switch piece is horizontally cantilevered and integrally formed with the shield case, the structure is complicated and it is less easy to manufacture. If the switch piece is elastically tired or defective, the entire shield case must be disposed of, which increases the manufacturing cost. In addition, the insulating body is provided with a conductive terminal and a switch terminal at the same time, since the conductive terminal must be located at a specific position to correspond to the conduction of the electronic card Pad, and the switch terminal must correspond to the switch piece, so that the conductive terminal is separated from the switch terminal by a distance, and the insulating body needs a larger area in order to cover the range of the conductive terminal and the switch terminal, but in the trend of thinning, the insulating body area Large and thin, that is, easy to produce warp and reduce production yield.

Accordingly, it is an object of the present invention to provide an electrical connector having an easy to manufacture detection switch and having a better production yield.

Another object of the present invention is to provide an electrical connector having a modularly manufactured detection switch and a card ejection unit.

Therefore, the novel electrical connector comprises a terminal block, a shielding shell, a switch unit and a card ejecting unit. The terminal block includes an insulating plate and a plurality of conductive terminals disposed on the insulating plate. The shielding shell has a cover portion and defines an accommodating space having an entrance and an exit together with the terminal block. The switch unit is located on a side parallel to the plug-in direction of the terminal block, and includes a first insulating seat, a detecting terminal and a conductive sheet. The first insulating seat has a first stop surface. The detecting terminal is fixed to the first insulating seat and has a spring arm extending from the first insulating seat. The end of the elastic arm extends toward the inside of the accommodating space and can be pushed by the object accommodated in the accommodating space to change The contact state of the conductive sheet. The card withdrawal unit includes a lever module and a push rod. The lever module is located on the opposite side of the inlet and outlet and includes a second insulating seat, a shaft member and a lever member. The second insulating seat and the first insulating seat together define a push rod receiving groove. The shaft member has a base portion disposed on the second insulating seat and a shaft portion extending from the base portion and projecting the second insulating seat toward the cover portion. The lever member has an operating portion, an abutting portion and a A shaft hole between the operating portion and the abutting portion. The shaft hole is inserted into the shaft portion, and the lever member is pivoted about the shaft portion to be rotatable between a receiving position and an pushing position. The push rod is reciprocally movable along the insertion direction and partially accommodated in the push rod receiving groove, and has an abutting end that can abut the operating portion and a first insulating seat and the second insulating seat. The protrusion between the two. The push rod can be slid by an external force to push the operating portion to rotate the lever member from the receiving position to the pushing position, and when the lever member returns to the receiving position, the protruding portion is subjected to the first blocking The stop is blocked so that the push rod does not move further in the direction outside the entrance.

The electrical connector of the present invention, wherein the second insulating seat has a second stopping surface opposite to the first blocking surface, and the protruding portion is rotated when the lever member is rotated to the pushing position Blocked by the second stop surface.

The electrical connector of the present invention, wherein the shielding housing further has a blocking wall extending from the cover portion, and the operating portion is provided together with the pushing rod to push the lever member to the pushing position The abutting end of the push rod is blocked by the blocking wall.

The electrical connector of the present invention, wherein the shielding housing further has a blocking wall extending from the cover portion, the second insulating seat having a second blocking opposite to the first stopping surface a stop surface, when the push rod pushes the lever member to the push position, the operating portion and the pushing end of the push rod are blocked by the stop wall and the protruding portion of the push rod is blocked by the second stop surface stop.

The electrical connector of the present invention, wherein the detecting terminal further has an insulating sleeve covering the end of the elastic arm.

The electrical connector of the present invention, wherein the shielding shell is further A first sidewall, a second sidewall and a spacer unit extending parallel to the plugging direction. The first side wall and the second side wall are respectively connected to opposite sides of the cover portion. The spacing unit is located between the first side wall and the second side wall and is opposite to the first side wall to partition the accommodating space from a mounting area adjacent to the first side wall and an adjacent side wall Card area. The first insulating seat and the push rod are located in the mounting area, and the end of the elastic arm of the detecting terminal extends into the card insertion area.

The electrical connector of the present invention, wherein the conductive sheet is formed by a portion of the spacer unit.

In the electrical connector of the present invention, the elastic arm of the detecting terminal abuts against the conductive sheet when it is not subjected to an external force.

The electrical connector of the present invention, wherein the first insulating seat and the second insulating seat respectively have a step portion to define the push rod receiving groove and cooperate with the first side wall to limit the push rod to limit The push rod moves linearly along the insertion direction.

In the electrical connector of the present invention, the push rod further has a force receiving portion, and the force receiving portion and the abutting end are respectively located at two ends of the push rod and are used for pushing a needle.

The function of the new type, the terminal block, the switch unit and the card-removing unit are separately arranged, which is not only easy to produce and install, but also avoids warpage. The detecting terminal is fixed to the first insulating seat, and the detecting terminal can be stably fixed and is not easy to loose. Furthermore, the push rod of the card ejecting unit has a protruding portion that can be restrained between the first insulating seat and the second insulating seat, so that when the push rod moves in the plugging direction, it does not come out of the shielding case.

100‧‧‧Electrical connector

324‧‧‧Weld Department

10‧‧‧ accommodating space

33‧‧‧Conductor

101‧‧‧ entrances and exits

4‧‧‧Retirement unit

102‧‧‧Installation area

40‧‧‧Pushing rod receiving slot

103‧‧‧ card area

5‧‧‧Leverage Module

1‧‧‧ terminal block

51‧‧‧Second insulation seat

11‧‧‧Insulation board

511‧‧‧second stop surface

12‧‧‧Electrical terminals

512‧‧‧

2‧‧‧shading shell

52‧‧‧ shaft parts

21‧‧‧ Covering Department

521‧‧‧ base

22‧‧‧First side wall

5211‧‧‧ bottom

23‧‧‧ second side wall

522‧‧‧Axis

24‧‧‧Interval unit

53‧‧‧ lever parts

25‧‧ ‧ retaining wall

531‧‧‧Operation Department

3‧‧‧Switch unit

532‧‧‧Remove the Ministry

31‧‧‧First insulation seat

533‧‧‧Axis hole

311‧‧‧First stop surface

6‧‧‧Put

312‧‧‧

61‧‧‧Right

32‧‧‧Detection terminal

62‧‧‧Protruding

321‧‧‧ Fixed Department

63‧‧‧ Force Department

322‧‧‧Bounce arm

7‧‧‧Tray

323‧‧‧Insulating sleeve

71‧‧‧Perforation

8‧‧‧Electronic card

80‧‧‧ needle

9‧‧‧Circuit board

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a perspective view showing a preferred embodiment of the present electrical connector mounted on a circuit board; Is an exploded perspective view showing the components of the preferred embodiment and its combination with an electronic card; FIG. 3 is a further exploded view of FIG. 2; FIG. 4 is another perspective view of FIG. 3; 1 is a flip view, and the terminal block of the preferred embodiment and the circuit board are not shown, illustrating that a lever member of the preferred embodiment is in a receiving position; FIG. 6 is a view similar to FIG. The lever member of the preferred embodiment is located at a pushing position; FIG. 7 is an exploded perspective view showing a first insulating seat, a detecting terminal, a second insulating seat and a shaft member of the preferred embodiment, and the first FIG. 8 is another perspective view of FIG. 7; FIG. 9 is a bottom view showing a switch unit of the preferred embodiment in an open state; FIG. 10 is a similar view. Figure 9 is a view showing the switch unit of the preferred embodiment being normally closed Off; FIG. 11 is a partial view of Figure 2, the preferred embodiment described embodiment the lever member is located at the storage location; and Figure 12 is a view similar to Figure 11 illustrating the lever member of the preferred embodiment in the push position.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 1 through 5, a preferred embodiment of the present electrical connector 100 is mounted to a circuit board 9 for electrically connecting an electronic card 8, such as an SLM card. The preferred embodiment comprises a terminal block 1, a shielding housing 2, a switching unit 3, a card ejection unit 4 and a tray 7.

The terminal block 1 includes an insulating plate 11 and a plurality of conductive terminals 12 disposed on the insulating plate 11. The conductive terminal 12 is fixed to the insulating plate 11 by means of insert molding, and is soldered and fixed to the circuit board 9.

The shielding housing 2 has a cover portion 21, a first side wall 22, a second side wall 23, a spacing unit 24 and a blocking wall 25. The shielding case 2 is soldered and fixed to the circuit board 9 and together with the terminal block 1 defines an accommodating space 10 having an inlet and outlet 101. The cover portion 21 is opposed to and spaced apart from the terminal block 1. The first side wall 22, the second side wall 23 and the spacing unit 24 are connected to the cover portion 21 and extend parallel to a plugging direction A, respectively. The first side wall 22 and the second side wall 23 are respectively connected to opposite sides of the cover portion 21, and the spacing unit 24 is located between the first side wall 22 and the second side wall 23 and is biased against the first side wall 22 to accommodate the receiving space 10 The mounting area 102 of an adjacent first side wall 22 and the card insertion area 103 of an adjacent second side wall 23 are separated. The retaining wall 25 is bent by the cover portion 21 with respect to the side of the inlet and outlet 101, and is biased against the first side wall 22 at the rear side of the mounting portion 102.

Referring to FIG. 2, FIG. 5 to FIG. 8, the switch unit 3 is located on the side parallel to the parallel connection direction A of the terminal block 1, and includes a first insulating seat 31, a detecting terminal 32 and a conductive sheet 33. The first insulating seat 31 is located in the mounting area 102 and has a first stopping surface 311. The detecting terminal 32 is fixed to the first insulating seat 31 and has a fixing portion 321 , an elastic arm 322 , an insulating sleeve 323 and two welding portions 324 . In the embodiment, the detecting terminal 32 is fixedly coupled to the first insulating seat 31 in a buried molding manner, and the fixing portion 321 is embedded in the first insulating seat 31. The elastic arm 322 extends from the fixing portion 321 and extends from the first stopping surface 311 to the first insulating seat 31 and the end of the elastic arm 322 extends toward the inside of the accommodating space 10, that is, into the card insertion area 103. The insulating sleeve 323 covers the end of the elastic arm 322. The two soldering portions 324 are respectively extended in opposite directions by the fixing portions 321 and expose the first insulating holder 31 to be soldered to the circuit board 9. In the present embodiment, the conductive sheet 33 is formed by a portion of the spacer unit 24, and is electrically connected to the circuit board 9 by the shield housing 2. However, in another embodiment (not shown), the conductive sheets may be separately formed in a terminal form and fixed to the first insulating holder 31.

The card ejecting unit 4 includes a lever module 5 and a push rod 6. The lever module 5 is located on the opposite side of the inlet and outlet 101 and includes a second insulating seat 51, a shaft member 52 and a lever member 53. The second insulating seat 51 is substantially L-shaped and has a second stopping surface 511 opposite to the first stopping surface 311 and defines a push rod receiving groove 40 together with the first insulating seat 31. In this embodiment, the first insulating seat 31 and the second insulating seat 51 respectively have a step portion 312, 512 to define the push rod receiving groove 40 and cooperate with the first side wall 22 to limit the push rod 6 to limit the push rod 6 Moves linearly along the insertion direction A. Of course, the first insulating seat 31 and the second The insulating seat 51 can also form a U-shaped groove wall (not shown) to define the push rod receiving groove 40, and can also limit the push rod 6. However, in this embodiment, the first insulating seat 31 and the first insulating portion 51 of the second insulating seat 51 and the first side wall 22 of the shielding housing 2 together limit the push rod 6, thereby reducing the first insulating seat 31 and the first The two insulating seats 51 form a width required for one side of the U-shaped groove wall, and the width of the entire connector 100 can be reduced. The shaft member 52 has a base portion 521 disposed on the second insulating seat 51 and a shaft portion 522 extending from the base portion 521 and projecting toward the cover portion 21 to project the second insulating seat 51. Specifically, the shaft member 52 is fixedly coupled to the second insulating seat 51 in a buried molding manner, and the base portion 521 is embedded in the second insulating seat 51 and exposed away from the bottom surface 5211 of the shaft portion 522 to be soldered and fixed to the circuit board 9. Since the base portion 521 extends laterally and both ends are bent toward each other, the bottom surface 5211 having a larger area can be increased to increase the welding area, so that the connection between the shaft member 52 and the circuit board 9 is more stable. The lever member 53 has an operating portion 531, an abutting portion 532, and a shaft hole 533 between the operating portion 531 and the abutting portion 532. The shaft hole 533 is inserted into the shaft portion 522 such that the lever member 53 is pivoted about the shaft portion 522 and is rotatable between a receiving position (shown in FIG. 5) and an pushing position (shown in FIG. 6). The push rod 6 can be reciprocated in the plugging direction A and partially accommodated in the push rod receiving groove 40, that is, in the mounting area 102, and has an abutting end 61 that can abut against the operating portion 531, and a first insulating seat 31. a protruding portion 62 between the second insulating seat 51 and a force receiving portion 63. The force receiving portion 63 and the abutting end 61 are respectively located at both ends of the push rod 6 and are used for pushing a needle 80 against.

The tray 7 is used to support the electronic card 8 to be inserted into the card insertion area 103, and has a through hole 71 corresponding to the position of the push rod 6 for the needle 80 to penetrate.

Referring to FIG. 5, FIG. 9, and FIG. 11, the detecting terminal 32 can be received. The object in the accommodating space 10 is pushed to change the contact state with the conductive sheet 33. In this embodiment, the object accommodated in the accommodating space 10 and pushing the detecting terminal 32 is the tray 7. Moreover, the electronic card 8 (see FIG. 2) is inserted into the accommodating space 10 by the tray 7 together in the plugging direction A, and the insulating sleeve 323 of the detecting terminal 32 is pushed by the tray 7 toward the second insulating seat 51 and The elastic arm 322 is driven away from the conductive sheet 33, and the state in which the detecting terminal 32 is in contact with the conductive sheet 33 is changed to a separated state. That is, the detecting terminal 32 and the conductive sheet 33 are changed from the electrical connection state to the open state, thereby detecting whether the electronic card 8 is placed in the accommodating space 10.

Further, when the electronic card 8 is placed in the accommodating space 10 together with the tray 7, the tray 7 pushes the urging portion 532 of the lever member 53 so that the lever member 53 is at the accommodating position, and at the same time, the operating portion 531 of the lever member 53 The push rod 6 is moved so that the force receiving portion 63 of the push rod 6 approaches the side of the entrance and exit 101. Further, at this time, the protruding portion 632 of the push rod 6 is blocked by the first stopper surface 311 of the first insulating seat 31, so that the push rod 6 does not move further outward than the inlet and outlet 101.

Referring to Fig. 6, Fig. 10 and Fig. 12, the push rod 6 is slid by an external force to push the operating portion 531 to rotate the lever member 53 from the accommodating position to the pushing position. During the rotation of the lever member 53, the urging portion 532 pushes the tray 7, so that the tray 7 and the electronic card 8 are partially withdrawn from the accommodating space 10 for the user to take. Further, when the push rod 6 pushes the lever member 53 to the push position, the operating portion 531 together with the abutting end 61 of the push rod 6 is blocked by the blocking wall 25 of the shielding case 2 and the protruding portion 62 of the push rod 6 is subjected to The second stop surface 511 of the second insulating seat 51 is blocked, so that the push rod 6 does not move out of the shield case 2. Of course, the push rod 6 can only be blocked by the blocking wall 25 or the second stopping surface 511 to reach the blocking push rod 6 The effect of removing the outside of the shielding case 2, together with the two, can strengthen the force of the blocking. In the present embodiment, the pusher 6 is pushed by the force of the pusher 6 by the needle 80.

As shown in FIG. 10, when the tray 7 is withdrawn from the accommodating space 10 and the external force applied to the insulating sleeve 323 is released, the elastic arm 322 of the detecting terminal 32 returns to the original position and abuts against the conductive sheet 33. In other words, when the elastic arm 322 of the detecting terminal 32 is not subjected to an external force, it abuts against the conductive sheet 33, so that the switching unit 3 is a normally closed switch. In the present embodiment, the insulating sleeve 323 is used to prevent the metal arm 322 from directly contacting the metal support frame (not shown) on the tray 7 to affect the detection result. If the tray 7 used does not have a metal component, the insulating sleeve 323 may be omitted.

It can be seen from the foregoing description that the switch unit 3 can form a module for production and installation, and the card ejecting unit 4 can also form a module for production and installation, so that the terminal block 1, the switch unit 3 and the card ejecting unit 4 can be separately manufactured. It is assembled on the circuit board 9, which is easy to produce and install. Further, the first insulating base 31 and the second insulating base 51 are spaced apart from each other by the insulating plates 11 of the terminal block 1, and the respective areas are small, which is not only easy to manufacture but also avoids warpage. Furthermore, the detecting terminal 32 is embedded and fixed in the first insulating seat 31, so that the detecting terminal 32 can be stably fixed and is not easily loosened.

In summary, the terminal block 1, the switch unit 3, and the card ejecting unit 4 of the present embodiment are separately provided, which is not only easy to produce and install, but also avoids warpage. The detecting terminal 32 is fixed to the first insulating seat 31, and the detecting terminal 32 can be stably fixed and is not easily loosened. Furthermore, the push rod 6 of the card ejecting unit 4 has a projection that can be restrained between the first insulating seat 31 and the second insulating seat 51. When the pusher 6 is moved in the insertion direction A, the portion 62 does not come out of the shield case 2.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made in accordance with the scope of the present patent application and the contents of the patent specification, All remain within the scope of this new patent.

100‧‧‧Electrical connector

5‧‧‧Leverage Module

1‧‧‧ terminal block

51‧‧‧Second insulation seat

11‧‧‧Insulation board

511‧‧‧second stop surface

12‧‧‧Electrical terminals

522‧‧‧Axis

2‧‧‧shading shell

53‧‧‧ lever parts

21‧‧‧ Covering Department

531‧‧‧Operation Department

22‧‧‧First side wall

532‧‧‧Remove the Ministry

23‧‧‧ second side wall

533‧‧‧Axis hole

24‧‧‧Interval unit

6‧‧‧Put

25‧‧ ‧ retaining wall

61‧‧‧Right

31‧‧‧First insulation seat

62‧‧‧Protruding

311‧‧‧First stop surface

63‧‧‧ Force Department

32‧‧‧Detection terminal

7‧‧‧Tray

322‧‧‧Bounce arm

71‧‧‧Perforation

33‧‧‧Conductor

8‧‧‧Electronic card

4‧‧‧Retirement unit

9‧‧‧Circuit board

40‧‧‧Pushing rod receiving slot

Claims (10)

An electrical connector includes: a terminal block including an insulating plate and a plurality of conductive terminals disposed on the insulating plate; a shielding case having a cover portion and defining a door and an inlet with the terminal block a accommodating space; a switch unit is located on a side of the terminal block parallel to a plugging direction, and includes a first insulating seat, a detecting terminal and a conductive piece, the first insulating seat has a first stop The detecting terminal is fixed to the first insulating seat and has a spring arm extending from the first insulating seat, and the end of the elastic arm extends toward the inside of the accommodating space and can be pushed by the object accommodated in the accommodating space. Changing a contact state with the conductive sheet; and a card ejection unit including a lever module on the opposite side of the inlet and outlet, and including a second insulating seat, a shaft member and a lever member, the second insulating seat and the The first insulating seat collectively defines a push rod receiving groove, the shaft member has a base portion disposed on the second insulating seat, and a shaft portion extending from the base portion and protruding toward the cover portion to protrude the second insulating seat. The lever member has an operating portion, a a pushing portion and a shaft hole between the operating portion and the abutting portion, wherein the shaft hole is inserted into the shaft portion, so that the lever member is pivoted with the shaft portion, and can be in a receiving position and an pushing position Rotating between, and a push rod movable in the plugging direction and partially received in the push rod receiving groove, and having an abutting end that can abut the operating portion and a first insulating seat and the second insulating seat a protruding portion, the push rod is slidably pushed by an external force to push the operating portion, the lever member is rotated from the receiving position to the pushing position, and when the lever member returns to the receiving position, the protruding portion The extension is blocked by the first stop surface so that the push rod does not move further outward than the entrance and exit. The electrical connector of claim 1, wherein the second insulating seat has a second stop surface opposite the first stop surface, and the protrusion is rotated when the lever member is rotated to the push position The extension is blocked by the second stop surface. The electrical connector of claim 1, wherein the shielding housing further has a retaining wall extending from the cover portion, the push rod pushing the lever member to the push position, the operation The abutting end of the part together with the push rod is blocked by the retaining wall. The electrical connector of claim 1, wherein the shielding housing further has a blocking wall extending from the cover portion, the second insulating seat having a first surface opposite to the first blocking surface a second stop surface, when the push rod pushes the lever member to the push position, the operating portion and the pushing end of the push rod are blocked by the retaining wall and the protruding portion of the push rod is subjected to the second stop Face stop. The electrical connector of claim 1, wherein the detecting terminal further has an insulating sleeve covering the end of the elastic arm. The electrical connector of any one of claims 1 to 5, wherein the shielding housing further has a first side wall, a second side wall and a spacing unit extending parallel to the insertion direction, the first side wall and The second side wall is respectively connected to opposite sides of the cover portion, and the spacing unit is located between the first side wall and the second side wall and is opposite to the first side wall to separate the accommodating space area The mounting portion of the first side wall and the card insertion area adjacent to the second side wall, the first insulating seat and the push rod are located in the mounting area, and the end of the elastic arm of the detecting terminal extends into the card insertion area. The electrical connector of claim 6, wherein the conductive sheet is formed by a portion of the spacer unit. The electrical connector of claim 7, wherein the elastic arm of the detecting terminal abuts against the conductive piece when the object received in the receiving space is pushed. The electrical connector of claim 6, wherein the first insulating seat and the second insulating seat respectively have a stepped portion to define the push rod receiving groove and cooperate with the first side wall to limit the push rod, To limit the linear movement of the push rod in the insertion direction. The electrical connector of claim 9, wherein the push rod further has a force receiving portion, the force receiving portion and the abutting end are respectively located at two ends of the push rod and are used for pushing a needle.