JP2010212054A - Low profile type electric connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a low profile type electric connector preventing the locked state of a shell in a conventional electric connector from loosing with the elapse of time. <P>SOLUTION: The low profile type electric connector 1 includes a shell A2 fixed to a sidewall portion of a circumference of a connector housing, and a shell B3 fixed so as to cover an upper flat portion of the connector housing. In the shell A, there is provided a lock spring 2a having a contact portion at a top end portion bent and extended in U shape from a body of the shell A. In the shell B3, there is provided a lock spring holding portion 3d combined with a fixing portion, which acts as a position fixing portion in an inserting and drawing direction, by being bent and extended in U shape from a body of the horizontal shell B intersecting perpendicularly to the inserting and drawing direction and by being engaged with the sidewall portion of the connector housing, and also acts as a lock spring holding portion being a wall further extended from the top end of the position fixing portion, and makes contact so as to prevent escape to a horizontal direction intersecting perpendicularly to the inserting and drawing direction in engaging the lock spring. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a male electrical connector with a low profile and a cable in a notebook personal computer (hereinafter referred to as PC).

  2. Description of the Related Art Conventionally, a low-profile electric connector with a cable that is surface-mounted on a printed circuit board with high density has been known to improve contact reliability and profile (see Patent Document 1). In addition, it realizes a reliable lock state and conduction state while realizing miniaturization and low profile, and even if the plug is repeatedly inserted and removed, there is little damage to each member, and the fitting position of the receptacle and plug is shifted. A device that realizes a high lock state even in such a case (Patent Document 2) is known.

JP 2004-55463 A JP 2006-100240 A

  However, in the conventional electrical connector, the connection of the contact is weakened, or the fitting shell that covers the connector housing has a lock spring, but the engagement force of the lock spring may be deteriorated over time. The electrical connector according to the present invention has been proposed in order to solve such a problem.

  The gist of the electrical connector according to the present invention for solving the above-mentioned problems and achieving the object is a low-profile electrical connector with a cable, in which a metal shell is surrounded on substantially the entire surface of the connector housing as a measure against EMI. A male electrical connector, wherein the shell is a thin and flat connector housing fixed mainly to the surrounding side wall portion and surrounding the shell A, and is fixed to the upper flat portion of the connector housing. The shell A includes a contact portion that is in sliding contact with the engagement contact portion of the female connector shell of the mating counterpart along the vertical direction that is the insertion / extraction direction, from the shell A main body portion. A lock spring is provided at the distal end that is bent and extended in a U-shape, and the shell B is bent in a U-shape from a horizontal main body portion of the shell B perpendicular to the insertion / extraction direction. A wall that is provided and engages with a side wall portion of the connector housing to become a position fixing portion in the insertion / extraction direction, and is a wall extending in the insertion / extraction direction further from the tip of the position fixing portion, and is inserted / extracted when the lock spring is fitted This is that a lock spring holding portion serving as a fixing portion serving as a lock spring holding portion that comes into contact so as to prevent escape in a horizontal direction orthogonal to the direction is provided. The engagement contact portion and the contact portion are both concave portions formed by crushing with a mold.

  According to the electrical connector of the present invention, the male electrical connector is fixed to the connector housing in the insertion / removal direction by the fixing portion / lock spring holding portion in the shell B of the male electrical connector. The connector can be pulled out from the mating female connector. Further, since the lock spring of the shell A is pressed by the fixing portion / lock spring holding portion so as to prevent the shell A from being bent in the horizontal direction perpendicular to the insertion / extraction direction during fitting, The lock strength with the engagement contact portion is maintained strong. Further, in the contact portion, the concave portions are shifted and brought into contact with each other, and the corner portion of one concave portion is brought into contact with the other concave portion, thereby ensuring electrical connection.

It is an exploded assembly figure (A) and (B) of the low profile type electric connector 1 concerning the present invention. It is a perspective view of the low profile type electrical connector 1 of the same invention. They are a rear view (A), a plan view (B), a front view (C), a sectional view (D) along the XX ship, and a side view (E) of the low-profile electrical connector 1. It is a bottom view of the low-profile electrical connector 1. The front view (A) and the side view (B) of the state which attached the pull tab 10 to the same low profile type electrical connector 1. FIG. They are a perspective view (A) and a sectional view (B) of the female electrical connector 5. It is sectional drawing of the state which assembled the coaxial cable 7 along the YY line in FIG. 3 (B).

  The low-profile electrical connector according to the present invention is divided into two types of shells A and B, in which a metal shell for EMI countermeasure surrounding the connector housing to be electrically shielded is divided into a side wall portion and an upper flat surface. When the lock spring of the shell A comes into contact with the shell of the female connector of the mating counterpart, the shell B prevents the lock spring from escaping outside in the direction perpendicular to the insertion / extraction direction. It is to press the wall surface of the inside. The shell B also serves to fix the position of the shell B so that the shell B does not come off in the insertion / removal direction when the shell B is fixed to the connector housing. Thereby, a pull-out pull tab for detaching from the mating female electrical connector is attached to the shell B. Furthermore, in order to ensure the electrical connection between the shells, the recesses are shifted and engaged.

  As shown in FIG. 1, a low profile electrical connector 1 with a flat coaxial cable according to the present invention is a male type in which a metal shell A2 and a shell B3 are surrounded by a substantially entire surface of a connector housing 4 as a measure against EMI. It is an electrical connector.

  The shell A2 of the low-profile electrical connector 1 is made of, for example, phosphor bronze and a metal having a thickness of about 0.15 mm, and the connector housing 4 having a thin plate shape mainly includes the side wall portions 4a, It is fitted and fixed to 4b, 4c, 4d to surround it. The shell B3 is made of, for example, a metal made of stainless steel and having a thickness of about 0.2 mm, and is fixed so as to cover the upper flat portion 4e of the connector housing 4. The strength of the shell B3 is made stronger than the strength of the shell A2.

  The shell A2 is in sliding contact with the engagement contact portion 5b (see FIG. 7) of the shell 5a of the female electrical connector 5 (see FIGS. 6 and 7) of the mating partner along the vertical direction that is the insertion / extraction direction. There is provided a lock spring 2a having a portion 2b at a tip portion which is bent and extended in a U shape from the shell A main body portion. As shown in FIG. 7, the contact portion 2b is a concave portion formed by crushing a part of the tip end portion of the shell A2 with a mold. The engaging contact portion 5b is also a recess formed by crushing with a mold at a position where the engaging portion of the contact portion 2b is exercised.

  The other lock spring 2c also engages with the engagement recess of the mating counterpart shell 5 and locks. Further, the engagement hole 2d engages with the engagement protrusion 4e of the connector housing 4 to fix the shell A2.

  The shell B3 is bent and extended in a U-shape from the horizontal main body 3a of the shell B3 orthogonal to the insertion / extraction direction, and is engaged with the side wall portions 4a, 4d of the connector housing 4 so as to be positioned in the insertion / extraction direction. It becomes a fixed portion 3b, and is a wall extending in the insertion / removal direction from the tip of the position fixing portion 3b so as to prevent escape in the horizontal direction perpendicular to the insertion / removal direction when the lock spring 2a is fitted. Fixing / combining lock spring holding portions 3d serving as the lock spring holding portions 3c that come into contact are provided at two locations. In addition, an engaging portion 3e that prevents attachment / detachment in the insertion / extraction direction is provided on the side wall opposite to the fixing portion / lock spring holding portion 3d.

  As shown in FIGS. 1A and 1B, a plurality of contacts 1a are integrally formed on the connector housing 4, and as shown in FIG. 7, the contacts 1a are flat and flexible coaxial cables. 7 is soldered to the ground bar 8 and the core wire 7a. Reference numeral 9 denotes an insulating cover made of synthetic resin. The shell A2 is attached to the contact housing 4 after the shell A2 is attached first. The state shown in FIG. 2 is a state in which the low-profile electrical connector 1 in which the shells A2 and B3 are assembled to the connector housing 4 is viewed obliquely.

  Further, as shown in FIGS. 5A and 5B, the shell B3 is provided with slits 3f at both left and right ends thereof, and a single belt-like shape is formed by using both the slits 3f and 3f. The detachable pull tab 10 is inserted into the slits 3f and 3f from one end side thereof, and both ends of the pull tab 10 are attached to the upper portion as a knob portion.

  The pull tab 10 can be attached to the connector housing 4 by the cooperation of the position fixing portion 3b of the U-shaped portion of the fixing portion / lock spring holding portion 3d of the shell B3 and the engaging portion 3e. This is because B3 is fixed in the insertion / extraction direction.

  6A and 6B, the female electrical connector 5 which is a mating counterpart is a connector which is surface-mounted on the printed circuit board 6, and a plurality of contacts 5c are provided together with the connector housing 5d. It has been. One end portion 5e of the contact 5c is soldered to the circuit portion of the printed circuit board 6, and the other end portion 5f is brought into sliding contact with the contact 1a of the male electrical connector 1 to be mated, and is electrically connected.

  The connector housing 5d is provided with a metal shell 5a so as to surround the peripheral edge thereof, and is electrically shielded. The female electrical connector 5 is mounted on the printed circuit board 6, and the low profile electrical connector 1 is attached to the female electrical connector 5 from above in a state where the printed circuit board 6 is horizontal. .

  When the low-profile electrical connector 1 configured as described above is fitted to and attached to the female electrical connector 5 on the printed circuit board 6 as shown in FIG. 7, the shell 5a of the female electrical connector 5 is attached. And the contact portion 2b of the lock spring 2a of the shell A2 of the low profile electrical connector 1 are in sliding contact with each other in the insertion / extraction direction. Since this lock spring 2a is U-shaped and has an elastic force, the distance a between the supporting base portion and the contact portion 2b is longer than in the case of other lock springs 2c, so that it is pushed by the reaction force of the engagement contact portion 5b. Try to move backwards horizontally.

  On the other hand, the lock spring holding portion 3c of the shell B3 that is stronger in strength comes into contact with the wall surface of the lock spring 2a that rises in a U-shape and pushes it back. As a result, the locked state between the engagement contact portion 5b and the contact portion 2b is stably maintained. Further, the engagement contact portion 5b and the contact portion 2b come into contact with each other with a concave portion, and one corner portion thereof comes into contact with the concave portion, and there is a wiper action to ensure electrical conduction.

  When the shell 5a and the shell A2 are electrically connected, the ground in the circuit on the printed circuit board 6 and the shell A2 and the shell B3 are electrically connected via the shell 5a. 1 and 5 are electrically shielded as a whole.

  The low profile electrical connector 1 of the present invention is implemented by providing the lock spring holding portion 3d serving as the fixing portion in the EMI countermeasure shell, but is not limited to this, and can be applied to the fitting portion of the shield shell in other electrical connectors. Is.

1 electrical connector, 1a contact,
2 Shell A, 2a Lock spring,
2b contact part, 2c lock spring,
2d engagement hole,
3 Shell B, 3a body part,
3b Position fixing part, 3c Lock spring holding part,
3d Locking spring holding part also serving as a fixing part,
3e engagement part, 3f slit,
4 Connector housing,
4a, 4b, 4c, 4d side wall,
4e engaging protrusion,
5 female electrical connector, 5a shell,
5b engagement contact part, 5c contact,
5d connector housing, 5e one end,
5f other end,
6 Printed circuit board,
7 Coaxial cable, 7a Core wire,
8 Grand bar,
9 Insulation cover,
10 Pull tab.

Claims (2)

An electrical connector having a metal shell surrounded on substantially the entire surface of the connector housing,
The shell is composed of a shell A that is fixed to and surrounds the connector housing mainly on the peripheral side wall portion, and a shell B that is fixed and surrounds the upper flat portion of the connector housing.
In the shell A, a contact portion that is slidably contacted with the engagement contact portion of the shell of the female connector of the mating partner along the vertical direction that is the insertion / extraction direction is bent and extended in a U shape from the shell A main body portion. A lock spring is provided at the tip,
The shell B is bent and extended in a U shape from a horizontal main body portion of the shell B orthogonal to the insertion / extraction direction, and engages with a side wall portion of the connector housing to become a position fixing portion in the insertion / extraction direction. The lock is a wall that is further extended in the insertion / removal direction from the tip of the position fixing portion and serves as a lock spring holding portion that comes into contact with the lock spring so as to prevent escape in a horizontal direction perpendicular to the insertion / removal direction when the lock spring is fitted. A dual-purpose lock spring holder is provided,
Low profile electrical connector characterized by The engagement contact and the contact portion are both concave portions formed by crushing with a mold,
The low-profile electrical connector according to claim 1.

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