JPH0142308Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] The present invention relates to the structure of a connector (or socket) used for connecting LSI packages or circuit boards, etc., and in particular, the invention relates to the structure of a connector (or socket) used for connecting LSI packages or circuit boards, etc. The present invention relates to a type of connector that connects or disconnects by moving in a specific direction.

[Prior art]

An example of this type of connector is the one shown in FIG. Figure 1 shows the case where an LSI package 2 is connected to a circuit board 1, and a cover insulator 6 having a guide hole 5 formed therethrough can be slid onto a housing or base insulator 4 in which a socket contact 3 is incorporated. The pin contact 7 of the LSI package 2 is inserted into the guide hole 5 and moved together with the cover insulator 6 in the direction of the arrow 8 to bring it into contact with the socket contact 3. Specifically, the contact between the socket contact 3 and the pin contact 7 is as shown in FIG. As shown, the pin contact 7 is inserted from the side, and the pin contact 7 slides therein while pushing the pair of contact portions 9, 9 outwardly.

[Problems with conventional technology]

When the pin contact 7 is inserted and removed from the side between the pair of contact parts 9 and 9 of the socket contact 3 as described above, the amount of lateral movement is taken as the horizontal axis and the insertion/extraction force is taken as the vertical axis. As shown in the graph, the third
It will look like the figure. However, in FIG. 3, the directions of the forces during insertion and removal are opposite, so the graph is shown with the positive and negative signs reversed. In other words, although it cannot be definitively stated depending on the diameter of the pin contact 7 and various dimensions of the socket contact 3, the peak value F _P of the insertion force is the same as the removal force.
It is considerably larger than F _N , almost twice as large. Also, if the contact force is P and the coefficient of friction between pin contact 7 and socket contact 3 is μ, then F _N =
It becomes 2μP. Therefore, a large force is required to insert the pin contact 7 from the side between the contact portions 9 of the socket contact 3, and it is therefore difficult to increase the number of pins in this type of connector.

[Purpose of invention]

Therefore, an object of the present invention is to provide an axis-perpendicular movable connector that requires less force for connection or disconnection, and that can easily be made to have a large number of cores.

Another object of the present invention is to achieve the above object with a structure that is easy to assemble.

[Structure of the idea]

According to the present invention, a base insulator incorporating a conductive contact is slidably combined with a cover insulator having a pin insertion hole formed therethrough, and a conductive connecting pin is inserted through the pin insertion hole. In the connector, the cover is moved together with the cover insulator in a direction perpendicular to the pin axis and slid onto the springy contact portion of the contact, thereby bringing the contact into contact with the connecting pin. a preload pin that is moved by an insulator in substantially the same plane as the connecting pin to predisplace the contact portion of the contact to a position when the connecting pin slides;
The connection pin and the preload pin are each movable to a position away from the contact portion of the contact, and the positional relationship between the two is set such that at least one of the pins is in a position corresponding to the contact portion, and A split-type axis-perpendicular movement connector is obtained, in which the cover insulator is divided into a plurality of pieces in a direction perpendicular to the direction of movement of the cover insulator.

〔Example〕

4 and 5 show an embodiment of the present invention. In this embodiment, a base insulator (hereinafter referred to as "base") 12 is placed and fixed on the top surface of a printed board 11, and a base insulator (hereinafter referred to as "base") 12 is superimposed on the top surface of the base 12 so as to be slidable in the directions of arrows _A1 and _A2 . Cover insulator (hereinafter abbreviated as "cover")
13, and conductive socket contacts 14 each inserted into a large number of through holes 111 formed in a matrix in the printed board 11. The base 12 has a large number of through holes 12
1 in a matrix. The cover 13 has a penetrating pin insertion hole 131 corresponding to the cavity 121 of the base 12. The contact 14 is
As shown in FIG. 6, it has a part 141 that is driven into the printed board 11, a spring part 142 that projects from the top surface of the printed board, and a guide part 143 that is additionally integrally formed with the spring part 142. . As can be seen from FIG. 7, the spring portion 42 is attached to the base 12
The guide portion 143 is positioned in the empty space 121 so as to face the direction A ₂ in which the cover 13 can slide. Pins (hereinafter referred to as "preload pins") 15 protruding from the lower surface of the cover 13 are fixedly held in the vicinity of the pin insertion holes 131, respectively. Now, when the cover 13 is superimposed on the base 12 as shown in FIG. 7, the preload pin 15 is inserted into the relief part 122 of the base 12, and as a result, it faces the guide part 143 in the directions of arrows _A1 and _A2 . do. Next, the cover 13 is slightly slid in the direction of arrow _A1 . At this time, the preload pin 15 is guided by the guide part 143 and the spring part 1
42, and as shown in FIG. 8, the distance between the parallel contact portions 144 at the tips of the spring portions 142 is increased. Note that the guide portion 143 of the contact 14
extends toward the base of the spring portion 142, the amount of outward expansion when the preload pin 15 is inserted is suppressed to be smaller than the similar amount of expansion of the parallel contact portion 144, and therefore the contact 1
High-density packaging is possible by reducing the mutual spacing between the elements 4 and 4.

The LSI package 16 is attached to the upper surface of the cover 13 of the connector thus assembled.
At this time, the pin contact, that is, the connection pin 17 of the LSI package 16 is inserted into the pin insertion hole 131. It is assumed that the connecting pin 17 passes through the pin insertion hole 131 and reaches the relief part 122 of the base 12. According to this structure, the connection pin 17 can be inserted almost without resistance. Note that the diameter of the connecting pin 17 is substantially the same as the diameter of the preload pin 15. Next, referring to FIG. 9, move the cover 13 with the arrow
When moved in the _A2 direction, the connecting pin 17 is carried into the spring part 142 of the contact 14, while the preload pin 15 is carried out from the spring part 142. Therefore, instead of the preload pin 15, the connection pin 17 comes into contact with the parallel contact portion 144 of the contact 14. To release the connection, simply move the cover 13 in the direction of arrow _A1 . In that case, use the preload pin 1 instead of the connecting pin 17.
5 contacts the parallel contact portion 144 of the contact 14.

Both when establishing and disconnecting the connection between the connecting pin 17 and the contact 14, the parallel contact portion 144 of the contact 14 is in the state of being pushed open in advance, so the force required for this operation is small.

By the way, although the force required for the connection work and the release work is small, the work of first inserting the preload pin 15 into the spring part 142, that is, the spring part 1
The operation of pushing 42 open requires relatively large force. Therefore, in the case of a connector with a large number of cores, it becomes difficult to move the cover 13, which hinders the increase in the number of cores. That is, there is a problem in the work of assembling it as a connector.

Therefore, as can be seen from FIGS. 4 and 5, the insulator parts of the connector, that is, the base ₁₂ and cover 13, are divided into several blocks in the direction B, which is perpendicular to the directions of arrows A1 _{and A2} . There is. According to this, when the preload pin 15 is first inserted into the spring portion 142, by moving the cover 13 one or several blocks at a time difference, the movement can be performed with a relatively small force. Therefore, it is possible to easily obtain a connector with a large number of contacts, for example, a connector with several thousand contacts. When connecting or disconnecting the connection, cover 1
3 can be moved with a small force as described above, so all blocks may be moved at the same time. Note that the base 12 may be a single piece.

In order to drive the above-mentioned connector, the tenth to
The moving jig shown in FIG. 12 is used. This moving jig includes a fixed frame 18 and a movable frame 19. The fixed frame 18 is positioned around the connector by fitting pins 21 press-fitted into the four corners into the through holes 111 of the printed board 11. Movable frame 19
is an arrow mark attached to the top surface of the fixed frame 18 with a screw 22.
It can be installed so that it can slide only in the A ₁ and A ₂ directions.

First, the socket contact 14 as described above is
When inserting the preload pin 15 into the movable frame 19, the movable piece 23 is assembled. The movable piece 23 is elongated in the direction of arrows A ₁ and A ₂ (that is, the direction in which the preload pin 15 and the connection pin 17 are inserted into and removed from the socket contact 14).
It is removably fitted into the movable frame 19 upwardly.
On the lower surface of the movable piece 23, there are arrows A ₁ ,
A Engaging portions 231 and 232 that engage in _two directions are provided. Furthermore, pins 181 and 191 are provided at corresponding positions on one end surface of the fixed frame 18 and the movable frame 19 in the direction of arrow B.

Now, when the handle 24 is engaged with the pins 181 and ₁₉₁ as shown in FIG. The block corresponding to 23 is pushed and moved in the direction of arrow _A1 by the engaging portion 231 of the movable piece 23. The movement of the cover block at this time is restricted by the stopper 132 engaging the base 12. The block whose movement has been completed is indicated by the symbol 13-1 in FIG. Next, the movable piece 23 is removed from the movable frame 19 and made to correspond to the next cover block 13-2, and the same operation as described above is performed. Thereafter, by repeating similar operations, the entire cover 13 is moved in the direction of arrow _A1 . As a result, all the preload pins 15 mentioned above are inserted into the socket contacts 14 with a small force. In addition, in the above, movable frame 1
Although the lever action of the handle 24 is used to slide the handle 9, other driving means may be used.

In this state, the LSI package 16 having the connection pins 17 is attached to the top surface of the cover 13. Thereafter, instead of the movable piece 23, the entire movable plate 25 is fitted into the movable frame 19 from above, as shown in FIGS. 13 to 15. The overall movable plate 25 corresponds to all cover blocks. Then, move the handle 24 described above in the opposite direction, that is, in the direction of arrow C ₂ , and move the cover 13 on all blocks simultaneously in the direction of arrow A _2.
move in the direction. As a result, LSI package 1
The connection pin 17 of No. 6 is inserted into the socket contact 14, and the preload pin 15 is removed from the socket contact 14. Cover 13 at this time
Movement of the base 12 is restricted by the stopper 133 engaging the base 12.

[Effect of idea]

As explained above using the embodiments, the axis-perpendicular movable connector according to the present invention requires less force to disconnect and disconnect, and also allows the work of initially aligning the preload pin with the contact to be performed with less force. , a very large number of cores (for example, several thousand cores) is also possible.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional example of an axis-perpendicular movable connector when in use, Fig. 2 is a perspective view also showing the connection principle, Fig. 3 is a graph showing the insertion/extraction force, and Fig. 4 is an implementation of the present invention. Fig. 5 is an external perspective view showing an embodiment of the present invention in a partially exploded state; Fig. 6 is a perspective view of a used socket contact; Figures 7 to 9 show the connection principle, in which a is a plan view and b
10 is a sectional side view, FIG. 10 is a plan view showing the process of initially aligning the preload pin with the contact, FIG. 11 is a sectional view taken along the line XI-XI in FIG. 10, and FIG. 12 is a diagram showing an example of the operating mechanism. Front view of section only, No. 13
The figure is a plan view showing the connection/disconnection work with the connection target, FIG. 14 is a sectional view taken along the - line in FIG. 13,
FIG. 15 is a front view of only the main parts showing an example of the operating mechanism. 11... Printed board, 12... Base insulator, 13... Cover insulator, 14...
...Socket contact, 15...Preload pin, 16...LSI package, 17...Connection pin, 18...Fixed frame, 19...Movable frame, 23...
Movable piece, 24...handle, 25...entire movable plate.

Claims (1)

[Scope of utility model registration request] A cover insulator with a pin insertion hole formed through it is slidably combined with a base insulator incorporating a conductive contact, and the conductive connecting pin inserted through the pin insertion hole is inserted at right angles to the pin axis. In the connector, the connector is moved together with the cover insulator in a direction such that the connector slides on the springy contact portion of the contact, thereby bringing the contact into contact with the connecting pin. a preload pin that is moved substantially in the same plane as the connecting pin and predisplaces the contact portion of the contact to a position in which the connecting pin slides; The cover insulator is movable to a position away from the contact part, and the positional relationship between the two is set so that at least one of the cover insulators is in a position corresponding to the contact part, and furthermore, the cover insulator is perpendicular to the direction of movement of the cover insulator. A split-type axis-perpendicular movable connector characterized by being divided into multiple pieces in the direction of movement.