JP2757121B2 - Socket connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a socket connector, and more particularly, to a socket connector for connecting a board on which a memory module or the like is mounted (called a memory module board or the like) to a main board at a predetermined insertion angle. After that, the memory module board or the like is turned to electrically connect the contacts of the memory module board or the like to the contacts of the socket connector in a press-contact state, and the memory module board or the like is held in the socket connector at the conductive connection position. It is about.

[0002]

2. Description of the Related Art A conventional socket connector is disclosed, for example, in Japanese Patent Publication No. 3-504180. In the socket connector disclosed herein, the engagement and holding of the memory module board and the like with the socket connector are performed by forming an engagement recess in the memory module board and the like, and connecting the memory module board and the like to the insulator body of the socket connector. This has been accomplished by mounting a metal latch that engages with the mating recess and engaging the latch with the engaging recess in an elastic manner.

In another type of socket connector, a latch is formed integrally with an insulator body, and the latch is elastically engaged with a memory module substrate or the like.

[0004]

However, in the above-mentioned type in which the metal latch is attached to the insulator, the memory module substrate or the like is made of a metal when the fitting is inserted into the socket connector of the memory module substrate or the like. Since it is inserted in contact with the latch, the contact portion with the latch, such as the memory module substrate, is cut off. For this reason, in order to prevent the memory module substrate and the like from being scraped, the shape of the latch must be devised, and the shape of the latch becomes complicated. There has been a problem that the process of assembling the socket connector becomes complicated and causes an increase in cost.

[0005] The detachment operation of the memory module from the socket connector must be performed by pushing and spreading the metal latch, which is elastically engaged with the engaging concave portion of the memory module substrate or the like, by hand. For this reason, there is a problem that the hand becomes painful at the time of the detaching operation.

On the other hand, in the type in which the latch is formed integrally with the insulator of the socket connector, the force for engaging and holding is set to be larger as the number of cores of the memory module substrate or the like increases. Must be done, so if the latch is too small, it will deform. In order to avoid this, the size of the latch may be increased, but this has a problem that it is against the demand for downsizing the socket connector.

The present invention has been proposed in view of the above-mentioned problems of the prior art, and provides a socket connector capable of reducing the size of a latch mechanism and improving the operability when detaching a memory module substrate or the like. The purpose is to do.

[0008]

According to the present invention, after a memory module substrate or the like is inserted into a socket connector at a predetermined insertion angle, the memory module substrate or the like is turned to contact the memory module substrate or the like. Is electrically connected to the contacts of the socket connector in a press-contact state, and at the conductive connection position, a latch provided on the socket connector is engaged with the memory module substrate or the like to hold the memory module substrate or the like on the socket connector. In the socket connector, the latch is integrally formed with a side leg of an insulator forming the socket connector main body, and a spring portion elastically urged in an engagement direction of the memory module substrate or the like; And an engagement portion for engaging and holding at a conductive connection position, and the engagement with the memory module substrate or the like. And a detachment operation unit for detaching the memory module substrate and the like by releasing the engagement with the memory module substrate and the like, and further, on an elastically deforming side of the spring unit, an auxiliary fitting for assisting elastic return of the spring unit is provided. It is provided in the insulator, and the engaging concave portion is formed at the tip of the spring portion.
The auxiliary fitting is formed in a hairpin shape, and
Part and the side leg part, the
Press the spring part against the tip of the straight part facing the spring part
Pressing portion is formed, and at the tip of the pressing portion, the engaging recess is provided.
An engaging portion that fits inside and engages with the spring portion is integrally formed.
Thus , a socket connector characterized by performing the above-described operations is obtained.

[0009]

According to the present invention having the above structure, a memory module board or the like is inserted into the socket connector at a predetermined angle, and at this time, the memory module is elastically deformed while the spring portion of the latch formed integrally with the insulator is elastically deformed. Accepts a substrate or the like. Then, the memory module substrate or the like is turned to electrically connect the terminals of the memory module substrate or the like to the contacts of the socket connector in a press-contact state. When the memory module substrate is in the posture of the conductive connection position, the engaging portion of the latch engages with the memory module substrate or the like to fix and hold the memory module substrate or the like. At this time, since the elastic return of the engaging portion is assisted by the auxiliary metal fitting, the memory module substrate and the like can be securely locked. Therefore, it is not necessary to increase the size of the engaging portion to increase the urging force. When the memory module board or the like is removed from the socket connector, the release operation portion of the latch formed integrally with the insulator is pushed and spread by hand, and the spring portion is elastically deformed to remove the memory module board or the like from the socket connector. be able to.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 1 to 4, the insulator of the socket connector 1 according to the embodiment of the present invention includes a base 10 for fixing and holding the first contact C1 and the second contact C2 at a predetermined pitch interval.
0 has side leg portions 11 which are bent at right angles from both side ends. The distance between the opposing sides 11 is determined by the width of the memory module board or the like connected to the socket connector 1.

As best seen in FIGS. 1 and 3, the side legs 11 are provided with latches on the side opposite to the side legs 11. This latch is located on the side leg 11 of the insulator.
And a spring portion 12 extending in parallel in a separated state. The spring portion 12 has a base portion 10 on the side leg portion 11 of the insulator.
And the tip side is a free end, and the base 1
It is configured to have flexibility around 0.

An engaging portion 1 is provided at the free end of the spring portion 12.
4 are formed so as to protrude inward (memory module substrate or the like). The engaging portion 14 is engaged with an edge of a side surface of a memory module substrate or the like described later to engage and hold the memory module substrate or the like with the socket connector 1.

On the upper surface of the engaging portion 14, when the memory module substrate or the like fitted and connected to the socket connector is disengaged, the engaging portion 14 is pushed out in the opening direction against the elasticity of the spring portion 12. Is formed.
The detachment operation portion 16 is a concave streak extending in the longitudinal direction so as to be hooked by a finger.

As best seen in FIG. 3, the side legs 11
Has a gap 15 formed in parallel with the spring portion 12.
Then, as shown in FIGS. 3 and 4, in the space 15,
An auxiliary fitting 20 having a hairpin shape and having a spring property is loaded from the bent portion side, and one straight portion 21 and the other straight portion 23 of the auxiliary fitting 20 are pushed into the gap 15. The distal end side of one linear portion 21 of the auxiliary fitting 20 is bent outward at an obtuse angle, and a pressing portion 21a for pressing the spring portion 12 from the inside is formed at the distal end. Furthermore,
An engaging portion 22 is formed at the tip of the pressing portion 21a,
The engaging portion 22 is engaged with the engaging concave portion 17 formed at the tip of the spring portion 12. Further, the auxiliary fitting 2 is provided in the space 15.
0, the auxiliary fitting 20 shown by a two-dot chain line in FIG.
A protruding piece 18 is formed to bring the auxiliary fitting 20 into a preloaded state as shown by a solid line from the free state. Thus, the auxiliary fitting 20 can be used in a range where a strong urging force is generated.

The auxiliary fitting 20 loaded in the gap 15 in this way is set so that the pressing portion 21a comes into contact with the spring portion 12, and when the spring portion 12 is pressed, It has an elastic force to push the spring portion 12 back to its original position.

A soldering portion 24 for fixing and connecting the socket connector 1 to the main board is formed at the tip of the other linear portion 23 of the auxiliary fitting 20. In FIG. 5, 6
0 is a main board.

FIG. 6 shows a case where a memory module board 50 or the like is mounted on the socket connector 1 according to the embodiment of the present invention. Inserted. At this time, the memory module board 50 or the like is inserted into the socket connector 1 with no insertion force. Such a zero insertion force (ZI
F) The structure is the same as the conventional one, and therefore, the shapes of the contacts C1 and C2 of the socket connector 1 shown in FIG. 1 correspond to the ZIF structure.

Next, when the memory module board 50 or the like inserted into the socket connector 1 is rotated in the direction of arrow B about the tip in FIG. The one contact C1 and C2 are electrically connected. FIG. 7 shows a state where the connection of the memory module board 50 and the like to the socket connector 1 is completed.

Next, an operation for removing the memory module substrate 5 from the socket connector 1 will be described. This causes the detachment operation sections 16 on both sides in FIG. 7 to be pushed outward by hand. Then, the spring portion 12 is elastically deformed in a direction in which the spring portion 12 expands against the elastic force of the spring portion itself and the auxiliary fitting 20, and the engaging portion 14 and the memory module substrate 5
0 is released, and in this state, the memory module board 50 or the like can be removed from the socket connector.

[0020]

As described above, according to the present invention, when the memory module board or the like fitted and connected to the socket connector is inserted into the socket connector, the latch which is the contact portion to the socket connector is the same as the insulator. Since it is made of a material made of a resin material or the like and is integrally formed with the insulator, the memory module substrate and the like are not cut and damaged when the memory module substrate and the like are inserted and removed.

Further, according to the present invention, at the time of removing operation of the memory module substrate or the like, it is only necessary to push and unfold the release operation portion of the latch, so that the operability is good and the hand becomes painful at the time of operation. There is no.

Further, in the present invention, the elasticity of the spring portion of the latch is performed by the cooperation of the elastic force of the spring portion itself and the elastic force of the auxiliary fitting, so that the latching effect is high and the holding force of the memory module substrate or the like is high. Therefore, the size of the latch mechanism can be reduced. Further, the present application
According to the invention, the engagement recess formed at the tip of the spring portion of the latch is provided.
In the end of the straight part facing the spring part of the auxiliary bracket.
The formed engaging portion is fitted, whereby the spring portion and the sub
Are engaged and connected with each other,
Overload (for example, mating without inserting the board to the specified position)
Or misoperation when detaching the substrate.
(Try to remove the board without performing the operation to spread the latch.
Can increase the breaking strength of the latch part)
You.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a socket connector according to an embodiment of the present invention.

FIGS. 2A and 2B are explanatory views showing a socket connector according to an embodiment of the present invention, wherein FIG.
(B) is a front view showing a part.

FIG. 3 is a partial plan sectional view of a part of the socket connector according to the embodiment of the present invention.

FIG. 4 is an enlarged cross-sectional view taken along line HH in FIG. 2;

FIG. 5 is a sectional view taken along line DD in FIG. 2;

FIG. 6 is a perspective view showing a state in which a memory module board or the like is inserted into a socket connector according to an embodiment of the present invention.

FIG. 7 is a perspective view showing a state where a memory module substrate and the like are fitted and connected to a socket connector according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Socket connector 10 Insulator base part 11 Insulator side leg part 12 Spring part 14 Engaging part 16 Detachment operation part 18 Projection piece 20 Auxiliary fitting 50 Memory module board etc. 60 Main board

Claims (2)

(57) [Claims] After inserting a memory module board or the like into a socket connector at a predetermined insertion angle, the memory module board or the like is turned to conduct a contact of the memory module board or the like to a contact of the socket connector in a press-contact state. A socket connector of a type in which a latch provided on a socket connector is engaged with the memory module board or the like at the conductive connection position to hold the memory module board or the like on the socket connector. A spring portion integrally formed with a side leg portion of an insulator forming a main body and elastically biased in an engagement direction of the memory module substrate or the like; Disengagement of the engagement portion, the memory module substrate, etc., and the engagement portion to release the memory module. And a detachment operation portion for disengagement Joule substrate or the like, the elastic deformation side of the spring portion, the auxiliary fitting for assisting the elastic return of the spring portion is provided in the insulator, the spring At the tip of the part
An engagement recess is formed, and the auxiliary fitting is a hairpin.
And formed between the spring portion and the side leg portion.
And a tip of a straight portion facing the spring portion of the auxiliary fitting.
A pressing portion for pressing the spring portion is formed on the side, and the pressing portion is
Into the engagement recess at the tip of
A socket connector, wherein the engaging portion is formed integrally . 2. A projecting piece for preloading the auxiliary fitting.
Is formed on the insulator.
The socket connector according to claim 1, wherein