JPH0828261B2 - Socket for electrical parts - 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 for an electric component such as an IC socket, and more particularly to a space for inserting a terminal of the electric component into the side of a contact held by the socket body without load. The space is designed to allow the electrical parts to be loaded and unloaded, and the movable plate provided on the socket body is moved laterally so that the terminals of the electrical components mounted on the movable plate can be inserted into the unloaded space. The present invention relates to a socket for an electric component, which is laterally moved from a space to forcibly intervene in a contact to make a contact.

[0002]

2. Description of the Related Art As a socket for this type of unloaded insertion / removal, as shown in FIG. 8, an unloaded insertion space 4 is provided on a side portion of a contact 3 held in a socket body 1, The electric plate 5 is designed to be unloaded and unloaded in the no-load insertion space 4, and the movable plate 2 provided in the socket body 1 is moved laterally to thereby move the movable plate 2.
The terminal 6 of the electric component 5 mounted on the
The terminal 6 is brought into the no-load insertion space 4 by the lateral movement from the space 4, forcibly intervening the contact 3 to make contact, and the lateral movement of the movable plate 2 in the opposite direction to carry out the no-load insertion / removal. This is known, and the lateral movement of the movable plate 2 is obtained by the turning operation of the operation lever such as the crank lever. In FIG. 8, shafts 7 and 8 are provided at the ends of the socket body 1 and the moving plate 2 which are the fulcrum and the action point of the lever, and the transmission shaft 8 is made the fulcrum by the operation of the lever.
Is rotated so that the moving plate 2 can move laterally.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the socket for electric parts, the terminals of the electric parts mounted on the moving plate are brought to the no-load insertion space and the electric parts are inserted and removed without any load. However, the moving plate and the operating lever may loosen due to vibration, etc.Therefore, before inserting the electric component, check whether the moving plate is correctly operated in the contact release state. There was a trouble that the electric parts had to be inserted after the confirmation operation. If this confirmation is neglected, if the operation of rotating the operation lever and the movement of the moving plate are incomplete and the movement to the no-load insertion space is not ensured, as shown in FIG. Since the terminal is inserted into the contact in the closed state, the terminal and the contact are deformed. Therefore, when inserting an electrical component into a socket by an automatic machine such as a robot, it is an irrational result that an operation step for confirming the contact release state, which is an unnecessary step, must be actually included.

The present invention is intended to surely solve the above problems.

[0005]

According to the present invention, as the above-mentioned means, the terminals of the electric parts mounted on the moving plate by lateral movement in one direction are formed on the contact side portion of the socket body. Contact is made by forcibly intervening between the load insertion space and the contacts, and by laterally moving in the same direction, the above terminals are moved from the contact position to the no-load insertion space to insert and remove electrical components without load. In the socket for electric parts, the electric part is not mounted between the socket body and the moving plate via a spring member that constantly urges the moving plate to the no-load insertion / removal position, that is, the contact release position. Sometimes the movable plate is always secured in the no-load insertion / removal position, and the elasticity of the spring member is set to a value that is much smaller than the total contact friction resistance of the contacts to the terminals so that the terminals forcibly intervened between the contacts do not escape. In which the electrical component is configured to securely hold the horizontally moved position to the one direction of the moving plate (contact position) when mounted Te.

[0006]

According to the above construction, when no electric component is mounted, the moving plate is prevented from moving due to the elastic force of the spring and is always urged to the unloaded insertion / removal position to secure the same position. Used for inserting and removing terminals of electrical parts without causing interference with contacts.

Therefore, the movable plate is correctly moved to the unloaded insertion / removal position (contact release position), the correspondence with the unloaded insertion space is properly obtained, and the confirmation operation is unnecessary. Also, when electric parts are mounted and the moving plate is laterally moved to the contact position against the spring, contact holding is reliably maintained by the contact friction resistance between the terminal and the contact, and the lateral movement of the moving plate in the contact release direction is prevented. Be blocked.

[0008]

Embodiments of the present invention will be described below with reference to FIGS.

Reference numeral 1 is a socket body for electric parts mounted on a wiring board or the like, and has contacts 3 arranged to be brought into contact with terminals 6 of the electric parts 5. The socket body 1 is provided with a moving plate 2 which laterally moves along the upper surface thereof.

In the socket shown in the embodiment, a moving plate 2 is placed on the upper surface of a substantially rectangular socket body 1 made of an insulating material, and a large number of holes 9 through which terminals 6 of an electric component 5 are inserted are formed on the moving plate 2 on a grid. The terminals 6 are inserted into the terminal insertion holes 9 while the electric parts 5 such as ICs are mounted on the upper surface of the moving plate 2 and the terminal no-load insertion space 4 is provided on the outer side of the contact 3. As shown in FIGS. 1A, 2A, 3A, and 4A, the tip of the terminal 6 is inserted into or unloaded from the terminal unloaded insertion space 4 through the terminal insertion hole 9. To do.

Thus, FIG. 1B, FIG. 2B, FIG. 3B, FIG. 4B
As shown in, by moving the movable plate 2 laterally in one direction from the unloaded insertion / extraction position (contact release position), the terminal 6 captured in the terminal insertion hole 9 is moved from the contact release position to the contact position. The terminal 6 is moved from the contact position to the contact release position by laterally moving the moving plate 2 in the other direction.

When the terminal 6 moves from the contact release position to the contact position, the terminal 6 forcibly intervenes between the contacts 3 in the normally closed state against the elasticity to obtain the contact pressure, and conversely the contact is made from the contact position. When the terminal 6 is moved to the release position, the terminal 6 is separated from the contact 3 and brought into the unloaded insertion space 10.

In FIG. 6, a contact operation lever 10 is provided as means for performing lateral movement operation of the moving plate 2 in one direction, and a contact release operation lever is provided as means for performing lateral movement operation in the other direction. -11 is provided. Operation lever 10 for contact
One end of the operation lever 10 is rotatably attached to the one end side surface of the socket body 1 by a support shaft 7, and one end of the operation lever 10 is pivotally connected to one end side surface of the moving plate 2 by a transmission shaft 8. The transmission shaft 8 is arranged so as to apply lateral power to the moving plate 2 in one direction when the contact operation lever 10 rotates about the support shaft 7.

Further, one end of the contact releasing operation lever 11 is rotatably attached to the other end side surface of the socket body 1 by a support shaft 12, and one end of the operation lever 11 is attached to the moving plate 2. It is pivotally connected to the side surface on the other end side by a transmission shaft 13. The transmission shaft 13 has the operation lever 11 for releasing the contact and the supporting shaft 1
The movable plate 2 is arranged so as to apply lateral power to the other direction when the movable plate 2 is rotated about the fulcrum.

7 and 5A as means for laterally moving the moving plate 2, the crank portion 15 of the crank lever 14 is interposed between the moving plate 2 and the socket body 1 at the overlapping end thereof.
The example in which the moving plate is laterally moved in one direction or the other direction through the eccentric motion of the crank portion 15 is shown. The operation lever as illustrated above is appropriately used in each of the embodiments described below.

As shown in FIGS. 1A and 1B, a coil spring 16 is interposed between the socket body 1 and the moving plate 2 in the socket for electric parts constructed as described above, and the moving plate 2 is always in the contact releasing direction. Place it so as to urge it. As shown in FIG. 1A, the coil spring 16 secures a position of the terminal 6 in the unloaded insertion space 4 when the contact of the terminal 6 is released, and the terminal 6 is used for unloaded insertion and removal of the terminal 6 at the same position.

That is, as shown in FIG. 1A, the coil spring 16 moves the moving plate 2 in one direction (rightward in the drawing) by its elastic force.
When the operation lever is not rotated and the terminal 6 of the electric component 5 does not intervene in the contact 3 of the socket body 1 (when the contact is released), The coil spring 16 always provides a no-load insertion space.
The position of the terminal 6 is secured in the space 4. In this state, the terminal 6 of the electric component 5 is loaded unloaded through the terminal insertion hole 9 of the moving plate 2 into the unloaded insertion space of the socket body 1.
Insert or remove into the space 4.

Next, as shown in FIG. 1B, the operation lever is
When the moving plate 2 is moved in the other direction (leftward in the drawing) against the coil spring 16 by the means, the terminal 6 of the electric component 5 is forcibly intervened in the normally closed contact 3 of the socket body 1 to make contact. The elasticity of the coil spring 16 is set to be much smaller than the total contact frictional resistance of the contacts 3 that hold the terminal 6, and is set to a value that does not push the terminal 6 out of the contact 3. As a result, the moving plate 2 is prevented from laterally moving in the contact releasing direction (horizontal moving to the no-load insertion / removal position) due to the contact frictional resistance between the terminal 6 and the contact 3 against the reverse elasticity of the coil spring 16. And contact is maintained.

Next, in order to release the contact between the terminal 6 and the contact 3, the operation lever is rotated to move the moving plate 2 to the position shown in FIG.
As shown in A, it may be moved laterally to the right from the state of FIG. 1B. Due to the elastic force of this coil spring 16,
As described above, the unloaded insertion / extraction position of the terminal 6 is ensured,
In this state, the electrical component 5 can be inserted / removed without any particular confirmation work.

2A and 2B, the winding spring 17 is axially supported on the end portion of the socket body 1, for example, by using the support shaft 7, and the spring end is engaged with the moving plate 2 to move the moving plate. Two
Is urged in the contact release direction. As shown in FIGS. 3A and 3B, the winding spring 17 may be pivotally supported on the end portion of the moving plate 2 and the spring end may be engaged with the socket body 1. In both cases, the same operation as described with reference to FIGS. 1A and 1B is performed to prevent the moving plate 2 from moving and to secure the contact release position.

4A and 4B, contrary to the embodiment shown in FIGS. 1A and 1B, the moving plate 2 is urged in the contact releasing direction by utilizing the pulling force of the coil spring 16, and the terminal 6 is in the unloaded insertion / extraction position. Has been secured. The coil spring 16 has one end fixed to the socket body 1 side and the other end fixed to the moving plate 2 side to obtain the above-mentioned tensile force, and as shown in FIG. 4B, the coil spring 16 is stretched against the tensile force. The contact state with the contact 3 is obtained by moving the moving plate 2 while moving.

5A, 5B and 5C show the coil spring 1 described above.
Instead of 6, the leaf spring 18 is interposed between the socket body 1 and the moving plate 2 to urge the moving plate 2 in the contact releasing direction to secure the terminal 6 in the no-load insertion space.

The leaf spring 18 has, for example, the crank portion 15 of the crank lever 14 as the operation lever, which is interposed between the movable plate 2 and the overlapping end of the socket body 1 and extends in parallel with the movable plate 2 and the central portion of the leaf spring. Is fixed to the socket body 1 side, and both ends of the leaf spring are elastically engaged with the moving plate 2 side so that the lateral movement can be obtained without generating a displacement force on the moving plate 2. The leaf spring 18 is installed so that the eccentric shaft portion of the crank portion 15 is located at the central portion of the leaf spring 18 for balancing.

The coil springs, winding springs, leaf springs, etc. are collectively referred to as spring members.

Although not shown, a spring member may be interposed between the operation lever and the socket body 1 to urge the moving plate 2 in the contact releasing direction. Even in this case, after all, an urging force in the contact releasing direction is applied to the moving plate 2 via the operation lever,
This means that the spring member is indirectly interposed between the movable plate 2 and the socket body 1, and is within the scope of the present invention as in the case where the spring member is directly interposed. Conversely, a spring member may be interposed between the operation lever and the moving plate 2 to urge the moving plate 2 in the contact releasing direction, which is also the same.

[0026]

As described above, according to the present invention, the no-load insertion space is provided on the side of the contact, and the moving plate on which the electric parts are mounted is moved laterally so that the above-mentioned no-load is passed through the moving plate. In a socket for electric parts designed to make contact and contact release between the terminals and contacts of the electric part inserted into the insertion space, the movable plate laterally moved to the contact releasing position, that is, the no-load inserting / withdrawing position is the spring. The elastic force of the member prevents the free movement and always secures the unloaded insertion / extraction position,
Secure the terminals in the no-load insertion space. Therefore, at the same position, the terminals of the electric component can be inserted and removed without causing interference with the contacts.

Since the moving plate is properly laterally moved to the contact release position by the spring member and the correspondence with the unloaded insertion space is properly obtained, the terminal and the contact are deformed by colliding with the contact at the time of inserting the terminal. The problem to be caused is eliminated exactly, and the operation for confirming whether or not the movable plate is properly moved to the contact release position is unnecessary.

The spring member interposed between the socket body and the moving plate acts as a harmful force on the moving plate to prevent the terminal of the electric component from coming out from between the contacts. By setting the relative value to the contact frictional resistance of the contacts to a value that is extremely small and does not allow the terminals forcibly intervening between the contacts to escape, the moving plate is moved by lever operation to resist the terminals against the spring member. The phenomenon of inevitable backlash when forcibly intervening between contacts is reliably prevented, the problem of misalignment between terminals and contacts due to the backlash is effectively solved, and highly reliable contact is secured.

That is, the moving plate is laterally moved against the spring member by the lever operation to eliminate the problem of backlash when the terminals are forcedly intervened between the contacts, and the moving plate is kept in the unloaded insertion / removal position by the spring member. The desired effect of the period can be fully achieved.

In addition, by setting the elastic force of the spring member, the state in which the terminals are forcibly intervened between the contacts is held by the contact frictional resistance of the contacts. Therefore, unless the terminals are forcibly intervened between the contacts, that is, Unless an electric component is mounted, the moving plate is always biased by a spring member even if it is idle due to an external force, and it is always reliably moved to the no-load insertion / removal position to form a standby state. It is possible to always perform no-load insertion of electric parts without any problem without checking the above.

[Brief description of drawings]

1A and 1B are sectional views of a socket for an electric component showing a first embodiment of the present invention, FIG. 1A is a contact released state, and FIG. 1B is a contact state.

2A and 2B are sectional views of an electric component socket showing a second embodiment, FIG. 2A is a contact released state, and FIG. 2B is a contact state.

3A and 3B are sectional views of a socket for electric parts showing a third embodiment, FIG. 3A is a contact released state, and FIG. 3B is a contact state.

4A and 4B are sectional views of a socket for an electric component showing a fourth embodiment, FIG. 4A is a contact released state, and FIG. 4B is a contact state.

5A is a plan view of an electric component socket showing a fifth embodiment, FIG. 5B is a sectional view showing the contact release state, and FIG. 5C is a sectional view showing the contact state.

FIG. 6 is a perspective view of an electric component socket illustrating an operation lever.

FIG. 7 is a perspective view of the socket showing another example of the operation lever.

FIG. 8 is a sectional view of a socket for an electric component showing a conventional example.

[Explanation of symbols]

 1 Socket body 2 Moving plate 3 Contact 4 Terminal no-load insertion space 5 Electrical parts 6 Terminal 16 Coil spring 17 Winding spring 18 Leaf spring

Claims (1)

[Claims] 1. A movable body which laterally moves along the upper surface of a socket body for connecting electrical parts is provided, and an unloaded insertion space for a terminal is provided on the outer side of each contact held in the other socket body. Insert the terminals of the electrical components mounted on the into the above no-load insertion space through the moving plate, and move the moving plate in one direction to force the above-mentioned terminals to intervene between the no-load inserting spaces to make contact. In the socket for electrical parts in which the terminal is moved from the contact position to the no-load insertion space by lateral movement in the other direction so that the no-load insertion / removal of the electrical part can be performed, the socket body and the movable plate are A spring member that constantly urges the moving plate to the no-load insertion / withdrawal position is interposed, and the elastic force of the spring member is made much smaller than the sum of the contact frictional resistances of the contacts to the terminals, and forced between the contacts. Is set to a value that does not escape the incoming has been terminals, electrical component socket, characterized in that the arrangement which holds the traverses position to the one direction of the movable plate by frictional contact resistance of the terminal and the contact.