JP2904495B2 - Connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a method of connecting a lid to a base so as to achieve uniform access over the entire connection surface while resisting repulsion of the connection surface. Connection device.

(Prior Art and Problems Thereof) In recent years, it has been particularly desired to improve the environmental electromagnetic performance of electronic devices.

Therefore, the design is performed with a certain limit imposed on the radiation amount of the electromagnetic wave from the electronic device and the susceptibility of the device to failure due to the penetration of the external electromagnetic wave.

In any of the above, it is an important means to block the internal and external electromagnetic fields by covering the electronic circuit provided on the base of the conductor with the lid of the conductor.

Conventionally, the biggest problem in such a case has been how to reduce the leakage of the electromagnetic field at the connection between the base and the lid. An effective countermeasure against such a problem is to provide a groove in one or both of the base and the lid and to connect the two after embedding an elastic conductor in the groove. As the conductor having elasticity, a braid of a conductor, a conductive rubber, or the like is used, and many are commercially available.

When the above method is applied to a large-sized device such as a test head of an LSI tester, the elasticity of the conductor having elasticity is several tens kg (for example, 45 kg), and connection is not easy.

The method of screwing the lid to the base not only requires skill and time to screw, but also the surrounding area where the lid and the base are to be connected has different approach distances at the start of screwing (at least three screws). (If one screw is not used, one plane is not determined), the lid is tilted, and a diagonal force is applied to the screw and its surroundings, causing their deterioration and destruction. This fear is
This leads to further deterioration of workability.

(Object of the Invention) Accordingly, an object of the present invention is to provide a connection device which is easy to work without deterioration of a connection portion when connecting a base and a lid against elastic force.

(Summary of the Invention) In one embodiment of the present invention, a lid (second device) is prepared on a base (first device) having a flat surface on which an electronic circuit is mounted so that the flat surface serves as a connection surface. . The connection portion defines a rectangle around the connection surface, and secures four angles perpendicular to the connection surface on the base along four sides thereof. Each angle has two projections, which are rotated around the axis by cylindrical rollers whose axis is parallel to the connecting surface and perpendicular to one of the corresponding four sides.

The lid has four horizontal movement angles corresponding to the four angles, and the cover is provided with two horizontal movement angles.
One groove couples to the corresponding protrusion. When the horizontal movement angle is displaced horizontally to the connection surface, the distance between the base and the lid changes.

One of the horizontal movement angles is moved horizontally by a handle provided on the lid.

Also, the circular plate provided on the lid has a vertical projection on its periphery, which rotates around a vertical axis. The vertical projections on the circular plate are adapted to be connected to grooves provided in the horizontal movement angle, and all the horizontal movement angles move in the connection plane. Therefore, the connection state between the base and the lid on the four sides of the connection surface is all the same, and the degree of proximity is the same.

An elastic conductor is interposed between the connecting portions to fill a gap between the base and the lid to prevent leakage of electromagnetic waves.

(Embodiment of the Invention) FIG. 1 shows a test head of an integrated circuit (IC) measuring apparatus having a connection device according to an embodiment of the present invention.

The lid 1 is made of aluminum sheet metal and has an opening / closing door 5 at the center of the upper surface for accessing the device to be measured. When the door 5 is closed by the lock lever 7, a commercially available spring gasket is inserted between the door 5 and the lid 1 to prevent leakage of electromagnetic waves. Lid 1
A lid attaching / detaching lever 3 is provided on one of the four side surfaces. The lid 1 is placed on the base 10 and rotated by 180 ° in the direction of arrow A, whereby the lid 1 and the base 10 are connected. Is done. To remove the lid 1 from the base 10, the lever 3 is rotated 180 ° in the direction opposite to the arrow A to release the lock, and then the two are released. The attachment and detachment of the lid may be performed by bringing the lever 3 into contact with the stopper pin 42.

The base 10 is a test head main body, and four lid fixing angles 12 are welded or riveted to the upper surface. The cross-section of the angle 12 is U-shaped with an opening on top, each having two rollers 14. The roller 14 is provided on the upper ridge of the angle 12 at right angles to the plate surface, and has a metal outer ring mounted on a horizontal axis on the upper surface of the base with a polyacetal bearing.

Four plastic lid guides 16 are provided at the outer corners of the angle 12, and the lower surface of the lid 1 and the base 10 are provided.
Guide when positioning the upper surface of the abutment. Made of slippery material such as polyacetal. Although the center of the upper surface of the base 10 is also the center of the lower surface of the lid, the substrate 20 on which the device to be measured is to be mounted is disposed.

2 and 3 are attached to the lid, and by the rotation of the lever 3, along the upper surface of the base 10, a horizontal drive angle 22 made of sheet metal which moves in the direction of → in the figure, and moves in the direction of each side. One horizontal driven angle 24 is shown. The only difference between the horizontal drive angle 22 and the horizontal driven angle 24 is that the horizontal drive angle 22 has a coupling mechanism with the lever 3, and the operation is the same. Both the horizontal drive angle 22 and the horizontal driven angle 24 are slidably supported on the lid 1, and the supporting method is shown in FIG.

When the lid 3 is placed on the base 10 with the lever 3 on the stopper pin 42 side, each roller 14 is inserted into the vertical portion 26 of the first groove of each of the horizontal drive angle 22 and the horizontal driven angle 24.

As the lever 3 is rotated toward the stopper pin 41, the horizontal drive angle 22 and the horizontal driven angle 24 rotate in the directions of the arrows, and the rollers 14 move up the slopes 28 of the respective first grooves (the lid 1 is mounted on the base). 10) and stops at the horizontal section 30.

In order to ensure the stop, the horizontal portion 30 may be configured to be slightly lower than horizontal.

In the stopped state, the spring gasket 32 buried in the outer periphery of the lid 1 is compressed on the outer upper surface of the U-shaped angle in FIG.

The horizontal drive angle 22 and the horizontal driven angle 24 have a horizontal flange 34 with a second groove towards the center of the lid 1 and a vertical roller (rotating about a vertical axis) on a horizontal disk 40. 43 and the second groove are connected. The second groove is provided to extend inward in the horizontal direction perpendicular to the respective horizontal drive angle 22 and horizontal driven angle 24, and is provided with a horizontal disk 40.
The vertical roller 43 is provided at a depth at which the vertical roller 43 does not come off due to the rotation.

The center of the horizontal disk 40 is hollowed out so as not to interfere with the substrate 20 and the mounted components on the base 10. Further, the horizontal disk 40 is supported by eight support rollers 44 arranged on the fixed horizontal plate A of the lid 1 (not shown), so that it is smoothly rotated around its center by the bias of the horizontal drive angle 22. The support roller 44 may be a cylindrical roller or a continuous roller. The material used is polyacetal or metal.

In FIG. 2, the horizontal drive angle 22 and the support mechanism of the horizontal driven angle 24 are omitted.

FIG. 3 shows how the horizontal drive angle 22 moves as the lever 3 rotates. In FIG. 3 (a), the lever 3, its shaft 50, and the block 52 are integrated, and the shaft 3 is fixed to the lid 1 by the shaft 50. The block 52 has a driving roller 53 which is parallel and eccentric to the shaft 50 and is fixed to the shaft. The drive roller 53 is fitted with a polyacetal square bearing 54, and the square bearing 54
Is slidably sandwiched between vertical blocks 56, also made of polyacetal. Vertical block 56 is horizontal drive angle 22
It is fixed to.

Therefore, the rotation of the lever 3 causes the square bearing 54 to rotate
The horizontal drive angle moves left and right with respect to the lid 1 while rotating around 50 with respect to the lid 1.

The horizontal drive angle 22 and the horizontal driven angle 24 are supported on the lid 1 by support rollers 60 and 62 from above, below, front and back. In FIG. 3A, the upper two support rollers 60
Although only two support rollers 62 are shown, two support rollers (not shown) are provided on the lower side and the back side. The horizontal driven angle 24 is similarly supported.

3 (b), (c) and (d) show the lid 1 (that is, the support roller 62) and the horizontal drive angle with the rotation of the lever 3.
The change of the positional relationship between 22, vertical block 56, and square bearing 54 is shown.

The positions of the levers 3 in (b), (c) and (d) of FIG.
The rotated position (vertical position) is the stopper pin 41.

(Effects of the Invention) As described in detail above, according to the present invention, since the connection portion of both devices to be connected is kept at a uniform gap, an elastic body is inserted between the connection portions. Even in such a case, the connection is made against the repulsive force of the elastic body without generating abnormal stress on the connection guide and the like. Therefore, a connection with good electromagnetic wave blocking performance can be achieved. Also, connection can be made only by lever rotation. Extremely easy.

[Brief description of the drawings]

FIG. 1 is an isometric view of a test head for an IC tester for performing connection using one embodiment of the present invention, and FIG. 2 is a diagram showing the operation of a horizontal drive lever and a horizontal driven lever provided on a lid 1 of FIG. FIG. 3 is a schematic diagram for explaining the operation, and FIG. 3 is a detailed diagram showing the operation of the horizontal drive lever. 1: Lid 3: Lever 10: Base 12: Angle 14: Roller 16: Lid guide 20: Substrate 22: Horizontal drive angle 24: Horizontal driven angle 26: Vertical part of first groove 28: Slope of first groove Part 30: Horizontal part of the first groove 32: Spring gasket 34: Horizontal flange 40: Horizontal disk 43: Vertical roller 44: Support roller 50: Shaft 52: Block 53: Drive roller 54: Square bearing 56: Vertical block 58 : Upper surface of horizontal drive lever 22 60, 62: Support roller

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H05K 9/00 H05K 5/03

Claims (5)

(57) [Claims] 1. A first engaging portion provided on a first device and a second engaging portion supported by the second device so as to be slidable in a horizontal direction, and for engaging with the first engaging portion. A plurality of angles having two engaging portions; and a connecting means for connecting the plurality of angles, wherein the first and second engaging portions are engaged with each other to form the first and second devices. Is connected via an elastic member provided along a connection surface thereof, wherein the second engagement portion is a groove provided in each of the angles, and the groove is provided with the first and the second grooves. The first engaging portion includes a protruding portion that can be inserted into the groove portion; and At least one of the angles allows the angle to be manipulated from outside the second device. The second device is placed on the first device such that the connection surfaces of the first device and the second device are aligned, and the lever is operated. The second device moves relative to the first device in a direction perpendicular to the connection surface as the plurality of angles are interlocked and the protrusion moves up or down the inclined portion of the groove. A connection device, characterized in that: 2. The connecting means is a plate rotatably supported on a connecting surface of the first device and provided with a plurality of third engaging portions thereon, wherein the angle is the third angle. For engaging with the engaging portion of
The connection device according to claim 1, further comprising an engagement portion. 3. The connection device according to claim 1, wherein the groove has a horizontal portion further extending from the inclined portion in a horizontal direction with respect to the connection surface. 4. The connection device according to claim 1, wherein the protrusion has a roller. 5. The semiconductor device according to claim 1, wherein the first device is a test head of a semiconductor test system, and the second device is a shield head.
5. A case according to claim 1, wherein the case is a case.
The connection device according to claim 1.