JPH054226Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electrical connection device, and more particularly to a device for electrically connecting different pin contacts.

[Conventional technology]

Conventionally, it includes a socket contact formed by providing a socket part with a fitting hole at the tip of a flexible elastic piece,
A pin contact with a smaller diameter is inserted into the fitting hole of the socket part, and then the pin contact is moved laterally to bend the flexible elastic piece and come into strong contact with the socket part. There are devices for establishing an electrical connection between a socket contact and a pin contact (for example, Japanese Patent Laid-Open Nos. 58-106774 and 1982-105986). This has the advantage that the force required to insert the pin contact into the fitting hole of the socket portion is extremely small, and the contact pressure between the contacts can be increased.

[Problems to be solved by the invention] However, the device disclosed in the above publication is only capable of connecting one pin contact to the built-in socket contact, and there is no connection between the pin contacts. cannot get electrical connection.

Therefore, the purpose of the present invention is to provide an electrical connection between different pin contacts, requiring less force to insert the pin contacts, and increasing the contact pressure between the pin contacts and the socket contacts. Our goal is to provide electrical connection devices that can

In addition to the above objects, another object of the present invention is to provide an electrical connection device in which contact between a pin contact and a socket contact is made elastic.

[Means for solving problems]

According to the present invention, in a device for electrically connecting different pin contacts to each other, two insulating housings are opposed to each other in a first direction, and a conductive housing is arranged between the two housings. The socket contact has two socket portions facing the two housings on a one-to-one basis, and a connecting portion connecting the two socket portions. The housing is relatively movable in a second direction perpendicular to the first direction, and has pin guide holes each facing the socket, and the socket has a tip end facing the socket. The two housings each have a holding plate that rotatably engages with each of the two housings, and a contact spring piece that contacts the pin contact on one side in the second direction, and the two housings are connected to the second housing. A pin pressing wall that presses the pin contact is provided on one side in the direction, and a gap between the contact spring piece and the pin pressing wall is changed when the two housings move relatively in the second direction. The electrical connection device is characterized in that the pin contact and the contact spring piece are brought into contact with and separated from each other by rotating the socket contact in the first and second directions.

[Effect]

According to this, when the two housings are displaced from each other, the contact spring piece of the socket contact is displaced to a position where it does not face the pin guide hole of the housing. Therefore, when the pin contact is inserted into the pin guide hole in this state, the insertion can be completed without the pin contact sliding on the contact spring piece. After that, when the two housings are slid to correct the misalignment, the pin contact is pushed by the pin pressing wall of the housing and moves, and the contact spring piece of the socket contact is placed in a position facing the pin guide hole. move,
As a result, the pin contact contacts the contact spring piece. Eventually, the pin contact becomes sandwiched between the pin pressing wall of the housing and the contact spring piece.

〔Example〕

1 to 7 show an embodiment of the electrical connection device of the present invention. The illustrated electrical connection device (hereinafter referred to as a "connector") 1 is used to mount a first circuit board 3 made of an LSI package onto a second circuit board 5 made of a printed board. The first and second circuit boards 3 and 5 each hold a large number of conductive pin contacts 7 and 8 fixedly arranged in a regular arrangement.

The connector 1 includes an upper housing 10 and a lower housing 12 that face each other in the vertical direction. These housings 10, 12 are made of an insulator. A space S is formed inside the combined upper and lower housings 10 and 12. In the space S, a large number of conductive socket contacts 15 are regularly arranged in three rows.

The socket contact 15 has a pair of socket portions 17 for receiving the pin contacts 7 and 8, as also shown in FIG. A pair of socket parts 17
has a pair of holding plates 21 arranged on the same axis and a pair of contact spring pieces 23 whose plate surfaces are oriented at right angles to the holding plates 21.

The holding plate 21 and the contact spring piece 23 are connected by a connecting part 25. The connecting portion 25 includes a first connecting plate 27 that connects a pair of holding plates 21, and a pair of second connecting plates 29 that are bent at right angles from two sides of the first connecting plate 27. ing. Contact spring pieces 23 extend from each of the second connecting plates 29 in opposite directions. These contact spring pieces 23 have contact portions 31 at their tips for contacting the respective pin contacts 7 and 8.

The contact portion 31 projects in an arc shape toward a position corresponding to the axis of the holding plate 21 . This contact part 3
1 is in contact with pin contacts 7 and 8. Also,
A circular arc portion 33 is formed at the tip of the holding plate 21 . Such a socket contact 15 is formed by bending a press-cut plate material.

Note that both contact spring pieces 23 are configured to face oppositely to each other when viewed from the axis of the holding plate 21.

On the other hand, a large number of pin guide holes 35 are formed in the upper and lower housings 10 and 12 of the connector 1, respectively, for receiving the pin contacts 7 and 8. These pin guide holes 35 are formed at positions facing the socket portions 17 of the socket contacts 15 on a one-to-one basis.

The socket contact 15 connects the arcuate portion 33 at the tip of the holding plate 21 to the upper and lower housings 10 and 12.
The pin guide hole 35 is inserted into a groove 36 formed inside the pin guide hole 35 and in the vicinity of the pin guide hole 35. That is, the arc portion 33 is rotatably engaged within the groove portion 36.

Furthermore, the upper and lower housings 10, 12
A pin pressing wall 37 is formed extending along the pin guide hole 35. In this way, the pin contacts 7 and 8 inserted into the pin guide hole 35 are held between the contact portion 31 of the contact spring piece 23 and the pin pressing wall 37.

The connector 1 also includes a frame 40 that is assembled to the outer circumferential sides of the upper and lower housings 10 and 12, as shown in FIGS. 3 to 5.
Inside this frame 40, the upper housing 1
0 is movable in the direction of arrow 42 shown in FIGS. 3 and 4 or in the opposite direction (ie, in the lateral direction). Further, a drive cam 44 inserted through a side hole in the frame body 40 is opposed to one side of the upper housing 10, and can be rotated by a lever 46 connected thereto. Thus, when the drive cam 44 is rotated by the lever 46, the upper housing 10 is moved in the direction of the arrow 42, that is, in the lateral direction, in accordance with the cam surface of the drive cam 44.

Now, as shown in FIG. 7, when the upper and lower housings 10 and 12 are misaligned, the socket contact 15 is tilted and the pin contact 7,
8 can be easily inserted into the pin guide hole 35. That is, when the axes of the pin guide hole 35 and the socket contact 15 are shifted from each other,
When each pin contact 7, 8 is inserted into each pin guide hole 35, they can be inserted between the contact spring piece 23 and the pin pressing wall 37 with very little force.
At this time, each pin contact 7, 8 is still facing the contact portion 31 of the contact spring piece 23 at a distance.

Next, push down the lever 46 to remove the upper housing 10.
When the pin contacts 7 and 8 are moved in the direction of the arrow 42, the pin contacts 7 and 8 are also pushed by the pin pressing wall 37 and carried in the same direction. As the upper housing 10 is fed in the direction of arrow 42, the socket contact 15
is gradually raised so that its axis is perpendicular, and the contact portion 31 comes into contact with the pin contacts 7 and 8. After this, the pin contacts 7, 8 are pressed by the pin pressing wall 37 without being deformed. Finally, as shown in FIG. 1, the axis of the holding portion 21 and the axes of the pin contacts 7, 8 substantially coincide with each other, thus providing a reliable and stable connection. It goes without saying that when the pin contacts 7 and 8 are removed, the operation is reverse to that described above.

Next, connect the pin contacts 7 and 8 to the pair of contact spring pieces 2.
Let's find the force relationship in the process of inserting the contact part 31 into the contact part 31 using FIG. From the moment balance condition, the force acting on is P・l=F・L (1). However, here, F is the force received from the edge of the circular arc portion 33. On the other hand, the force W required to drive each pin contact 7, 8 is as follows: W=P-F (2). Substituting equation (1) into equation (2), W=P-l/L・P=(1-l/L)P...(3) According to this, if l is increased relative to L,
It can be seen that W has a small value with respect to P. Therefore, the force required to drive the housing for insertion and removal can be made very small.

[Effect of idea]

As explained above using the embodiments, according to the electrical connection device of the present invention, different pin contacts can be electrically connected, the force required for inserting the pin contacts is small, and the pin contact A sufficiently large contact pressure can be maintained between the socket contact and the socket contact.

Further, since the pin contacts are pressed by the opposing pressing walls, deformation of the small diameter pin contacts can be prevented.

[Brief explanation of the drawing]

The drawings show an embodiment of the electrical connection device of the present invention. Figure 1 is a partially sectional front view showing the state of connection between a pin contact and a socket contact, Figure 2 is a perspective view of the socket contact used, and Figure 3 is a diagram showing the overall configuration of the electrical connection device in its used state. 4 is a front partial sectional view showing the overall configuration of the electrical connection device, and FIG.
6 is a side sectional view of FIG. 4, FIG. 7 is a partially sectional front view showing the state in which the pin contact is inserted into the housing, and FIG. 8 is an explanatory view of the operation. 1... Connector, 3... First circuit board, 5...
Second circuit board, 7, 8... pin contact, 10
... Upper housing, 12 ... Lower housing,
15... socket contact, 21... retaining plate,
23...Contact spring piece, 25...Connecting portion, 29...
Connection plate, 31... Contact portion, 33... Arc portion, 36
... Groove portion, 40 ... Frame body, 44 ... Drive cam.

Claims (1)

[Scope of utility model registration request] A device for electrically connecting different pin contacts to each other, including two insulating housings facing each other in a first direction and a conductive socket contact disposed between the two housings. , the socket contact has two socket parts facing the two housings on a one-to-one basis, and a connecting part connecting the two socket parts, and the two housings are connected to the first socket. The sockets are relatively movable in a second direction perpendicular to the direction of the housing, each having a pin guide hole facing the socket, and the socket has a tip end facing each of the two housings. a retaining plate that rotatably engages, and a contact spring piece that contacts the pin contact on one side in the second direction, and the two housings have a contact spring piece on one side in the second direction, It has a pin pressing wall that presses the pin contact, and when the two housings move relative to each other in the second direction, the distance between the contact spring piece and the pin pressing wall is changed, and the socket An electrical connection device characterized in that the pin contact and the contact spring piece are brought into contact with and separated from each other by rotating the contact in the first and second directions.