KR101514031B1 - Shield Box - Google Patents

Abstract

The present invention relates to a shield box, comprising: a body with a hollow inside and one opened surface; a door to close the one opened surface of the body; a first jig which is mounted in the body to be linearly operated in a door direction and to allow a tested object to be mounted thereon; a first driving unit to linearly operate the first jig; a second jig mounted in the body to be lifted at a location corresponding to the first jig to test and calibrate the performance of the tested object; a third jig mounted to be lifted at a location facing the second jig based on the first jig to supply power to the tested object; and a lifting unit to lift the second jig and the third jig.

Description

Shield Box

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield box, and more particularly, to a shield box that can simplify the structure of a device by driving a power jig and a test jig using a guide plate and improve the connection accuracy of the power jig and the test jig will be.

In general, small wireless communication devices such as cellular phones are manufactured and manufactured, and then shipped through device performance tests.

The performance test of such wireless communication devices is performed through a wireless communication device test apparatus equipped with a shield box to minimize a measurement error caused by interference of external radio waves.

Such a conventional wireless communication device testing apparatus is provided with a fixture to which an object to be tested is mounted while moving back and forth in a shielded room having an opening and closing door. When the object to be measured is installed, the power source is supplied to the object and the object to be inspected is booted. After a certain period of time has elapsed after power is applied to the object to be inspected, various performance tests are performed by being electrically connected to the performance test instruments.

In addition to a jig on which an object to be inspected is placed, a jig for applying power to the object to be inspected and a jig electrically connected to the devices for performance testing are provided respectively on upper and lower sides of the jig on which the object to be inspected is seated.

Since the power jig and the inspection jig must be mounted in the shielded chamber, they are difficult to be coupled with the jig on which the inspection object is placed.

Conventionally, a plurality of driving devices for raising and lowering the power jig and the inspection jig, respectively, for contacting the power jig and the inspection jig with the object to be inspected are provided. That is, a plurality of driving devices for raising and lowering the power jig provided at the lower portion of the jig on which the inspection object is placed should be provided.

In order to stably drive the inspection jig and the power supply jig, at least three driving devices must be provided, which complicates the configuration of the apparatus. In addition, since at least six drive units must be operated by the same length, the control is complicated.

In addition, when one drive device fails to perform an accurate operation due to an error or a failure, the power jig and the test jig may be deformed or may be damaged in a serious case, There is a problem.

Further, when the inspection jig and the power jig are driven in a state where the jig with the object to be inspected is not mounted, mutual collision occurs, which causes deformation or breakage of the inspection jig and the power jig.

KR2011-0005040 20

The present invention provides a shield box which can simplify the structure of the apparatus by driving the power jig and the inspection jig by using guide plates and improve the connection accuracy of the power jig and the inspection jig It has its purpose.

The objects of the present invention are not limited thereto, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to another aspect of the present invention, there is provided a shield box comprising: a body having a hollow inside and having an open side; a door that closes an open side of the body; A first jig to which an object to be inspected is placed, a first driving unit that rectilinearly moves the first jig, and a second jig that is movable up and down at a position corresponding to the first jig inside the main body, And a second jig for calibrating the first jig, a third jig provided so as to be able to move up and down at a position opposite to the second jig with respect to the first jig, And a lifting portion for lifting the jig.

At this time, the elevating portion is provided on at least any one of the both side surfaces of the second jig and the third jig based on the traveling direction of the first jig, and the elevating and lowering of the second jig and the third jig A guide plate having guide grooves for guiding and a second drive unit for reciprocating the guide plate in one direction.

The guide groove may have a first guide groove inclined at a predetermined angle from the center of the guide plate toward the direction of travel of the first jig from the inner side of the main body toward the door direction, And a second guide groove formed symmetrically with the first guide groove.

In addition, the first guide groove and the second guide groove may be plural.

Further, each of the second jig and the third jig facing the guide plate may have a fixing protrusion inserted into the guide groove, respectively.

In addition, a fastening member for connecting one surface of each of the second jig and the third jig to the guide groove of the guide plate may be provided.

The second driving unit may be a cylinder or a linear actuator.

In addition, a sensor for measuring the operating state of the guide plate may be further provided at one side of the second driving unit.

In addition, a stopper for limiting a driving distance of the guide plate may be further provided in the main body.

The first jig may be integrally formed with the door.

The shield box of the present invention has the following effects.

First, the second jig and the third jig inserted in the guide grooves, which are formed symmetrically with respect to the guide plate, can be simultaneously driven through the driving of the guide plate.

Secondly, since the second jig and the third jig are simultaneously driven by using the guide plate, the number of driving devices can be greatly reduced.

Thirdly, as the number of driving devices is reduced, the structure of the device is simplified, thereby reducing the volume and manufacturing cost of the device.

Fourth, by simultaneously driving the second jig and the third jig through the guide plate, the accuracy of contact between the second jig and the third jig and the first jig can be improved.

Fifth, the second jig and the third jig can be stably moved along the guide groove formed in the guide plate, thereby minimizing the strain rate and the breakage rate of the second jig and the third jig.

Sixth, it is possible to make accurate contact between jigs by measuring the moving distance of the guide plate through the sensor.

Seventh, by limiting the driving distance of the guide plate through the stopper, it is possible to prevent the direct collision of the second and third jigs, thereby preventing deformation and breakage of the second jig and the third jig in a malfunction of the machine have.

Eighth, there is an effect that the concurrent connection rate of the second jig and the third jig can be improved by setting the inclination angle of the guide groove formed in the guide plate to correspond to the distance between the second jig and the third jig.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, And shall not be interpreted.
1 is a perspective view of a shield box according to the present invention;
2 is a perspective view of a shield box according to the present invention, excluding a main body thereof;
3 is a side view of the shield box according to the present invention, except for the main body thereof;
4A and 4B are side views showing the use of the shield box according to the present invention; And
5 is a plan view showing the use of the shield box according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Shield box configuration

FIG. 1 is a perspective view of a shield box according to the present invention, FIG. 2 is a perspective view of a shield box according to the present invention, and FIG. 3 is a side view of a shield box according to the present invention. 1 to 3, the shield box 10 according to the present invention includes a main body 100, a door 200, a first jig 300 to a third jig 500, a first drive unit 310 and a lifting unit 600.

The main body 100 is hollow and has one open side. As described above, the main body 100 may be formed in any shape as long as it is hollow and has one open side. However, it is preferable that it is formed in a hexahedron shape.

The door 200 is an apparatus that opens and closes an open side of the main body 100. The main body 100 may be rotated or opened according to the use mode or may be integrally formed with the first jig 300 to be described later and may be rotated by the first driving unit 310 provided in the main body 100, And opens and closes the opened one side of the main body 100. As shown in FIG. The driving of the door 200 will be described in more detail in the description of the first jig 300 to be described later.

The first jig 300 is provided to be inserted into and detached from the main body 100 to provide a space in which the object to be inspected 1000 such as a PCB or PBA can be placed. The first jig 300 has a groove on which a subject 1000 can be placed at one side of the center of the first jig 300. The first jig 300 includes a seating position of the object to be inspected 1000 and a combination of the second jig 400 and the third jig 500 A plurality of pins and grooves for determining the position are formed. The first jig 300 is commonly used in the art, and a detailed description thereof will be omitted.

One side of the first jig 300 facing the main body 100 provided with the door 200 is connected to the first driving unit 310 and is driven by the first driving unit 310, (200), and moves straight forward and backward. At this time, a guide rail for guiding the linear slide movement of the first jig 300 is provided in the main body 100, and the first jig 300 stably slides along the guide rail.

The first driving unit 310 is inserted into the main body 100 and moves the first jig 300 from the inside of the main body 100 to the outside through the open side of the main body 100 . The first driving unit 310 is provided on one side of the first jig 300, preferably on the other side opposite to the open side of the main body 100 to drive the first jig 300. The first driving unit 310 may be any device as long as it can move the first jig 300 and the door 200 linearly. Preferably, a cylinder or a linear actuator is used.

The second jig 400 is installed in the main body 100 so as to ascend and descend to inspect and calibrate the performance of the object to be inspected 1000. The second jig 400 is provided so as to be movable up and down by driving the guide plate 610 at a position corresponding to the position where the first jig 300 is completely inserted into the main body 100, The inspection unit provided on the second jig 400 is detachably attached to the inspection position of the inspection object 1000 placed on the second jig 300. An inspection unit such as an RF cable for RF frequency verification of the object to be inspected 1000 mounted on the first jig 300 is provided on one side of the second jig 400. At this time, the inspection unit may be equipped with various devices, terminals, cables, or the like depending on the type of inspection.

The third jig 500 is provided to be able to move up and down inside the main body 100 to supply power to the object to be inspected 1000. The third jig 500 is disposed to face the second jig 400 with respect to the first jig 300 at a position corresponding to a position where the first jig 300 is completely inserted into the main body 100 And is movable up and down by driving the guide plate 610 in the same manner as the second jig 400. At this time, a power transmission pin or the like is provided on one side of the third jig 500 to supply power to the object to be inspected 1000 that is seated on the first jig 300.

The first to third jigs 300 to 500 are commonly used in the art, and a detailed description of the structures will be omitted.

The elevating part 600 is a device for simultaneously elevating and lowering the second jig 400 and the third jig 500. The elevating part 600 includes a guide plate 610 and a second driving part 620.

The guide plate 610 is provided on at least one of both sides of each of the second jig 400 and the third jig 500, preferably both sides of the first jig 300 with respect to the traveling direction of the first jig 300. The guide plate 610 may be provided on both sides of the second jig 400 and the third jig 500 for stable lifting and lowering of the second jig 400 and the third jig 500. The guide plate 610 is formed as a flat plate as a whole and has guide grooves 611 for guiding the lifting and lowering of the second jig 400 and the third jig 500 on one side thereof.

The guide groove 611 includes a first guide groove 612 for lifting and lowering the second jig 400 and a second guide groove 613 for lifting and lowering the third jig 500.

The first guide groove 612 is formed at an upper portion with respect to a center axis of the guide plate 610 in the driving direction and is formed so as to be inclined so that the height gradually increases toward one side opened from the inside of the main body 100. That is, when the guide plate 610 advances to one side opened from the inside of the main body 100, the second jig 400 connected thereto is lowered along the first guide groove 612, and the guide plate 610 is moved downward 100, the second jig 400 connected to the second jig 400 is formed to rise along the first guide groove 612.

The second guide groove 613 is formed symmetrically with the first guide groove 612 with respect to the central axis of the guide plate 610 in the driving direction. That is, the second guide groove 613 is formed at a lower portion with respect to the central axis of the guide plate 610 in the driving direction, and is inclined so that the height gradually decreases from the inner side of the body 100 to the open side.

The first guide groove 612 and the second guide groove 613 formed in the guide plate 610 may be provided with at least two or more guide grooves 612 and 613 for stably lifting the second jig 400 and the third jig 500, It is preferable that a plurality is provided. As described above, when the first guide groove 612 and the second guide groove 613 are formed in plural, the second jig 400 and the third jig 500 can be stably lifted and lowered without fluctuation.

The fixing jig 630 may be formed on one surface of each of the second jig 400 and the third jig 500 facing the guide plate 610 and inserted into the guide groove 611. A fastening member 630 may be provided for connecting the guide groove 611 to one side of the second jig 400 and the third jig 500 in place of the fastening protrusion 630. [ The fixing protrusion 630 and the fastening member 630 can be selectively used by the user depending on the usage.

The second driving unit 620 is provided on one surface of the guide plate 610 and linearly moves the guide plate 610 in one direction. The second driving unit 620 is provided inside the other side of the main body 100 facing the open side of the main body 100 to move the guide plate 610 in a straight direction to be. The second driving unit 620 may be any device as long as it can reciprocate the guide plate 610 linearly. Preferably, a cylinder or a linear actuator is used.

A sensor 700 for measuring the operating state of the guide plate 610 may be further provided at one side of the second driving unit 620. The sensor 700 may be any sensor as long as the sensor 700 can measure the operation state of the guide plate 610, for example, the moving distance of the guide plate 610. Preferably, the sensor 700 is used.

A stopper 800 may be provided on one side of the main body 100 to limit the movement distance of the guide plate 610. [ The stopper 800 is provided on the movement path of the guide plate 610 so as to face the inner side of the main body 100, preferably one side of the guide plate 610 provided with the second drive unit 620, 610 are prevented from being driven beyond a predetermined distance.

Usage of shield box

FIGS. 4A and 4B are side views showing the use of the shield box according to the present invention, and FIG. 5 is a plan view showing a use state of the shield box according to the present invention.

First, the door 200 is opened from the main body 100. 4A and 5, when the first driving unit 310 linearly moves the door 200 and the first jig 300 to the opened state of the main body 100, The first jig 300 is exposed to the outside of the main body 100 while the door 200 is opened. At this time, the door 200 and the first jig 300 can be opened stably and slidably along the guide rails formed in the main body 100.

Next, as shown in FIG. 1, a test object 1000 such as a PCB, a PBA, or the like is placed in a groove formed in the first jig 300.

The first jig 300 is inserted into the main body 100 by sliding the first jig 300 and the door 200 in the main body 100 by moving the first jig 300 in a sliding direction , The door (200) closes the open side of the main body (100).

Next, the second jig 400 equipped with the inspection unit for inspecting the inspection object 1000 and the third jig 500 for supplying power to the inspection object 1000 are simultaneously raised and lowered. At this time, the driving of the second jig 400 and the third jig 500 is performed through the lifting unit 600. The elevating and lowering states of the second jig 400 and the third jig 500 by the elevating unit 600 will be described in more detail as follows.

The second jig 400 and the third jig 500 are spaced apart from each other by a predetermined distance above and below the first jig 300 inserted therein to prevent mutual collision when the first jig 300 moves. Lt; / RTI > At this time, it is preferable that the second jig 400 and the third jig 500 are equally spaced from each other with respect to the first jig 300.

As described above, when the first jig 300 on which the object to be inspected 1000 is placed is inserted into the body 100 and the body 100 is sealed by the door 200, The second jig 400 and the third jig 500 are moved up and down to start inspection of the object to be inspected 1000.

The guide plate 610 is advanced through the second driving unit 620 for driving the second jig 400 and the third jig 500. [

4B, when the guide plate 610 is advanced by the second driving unit 620, the first guide groove 612 of the guide plate 610 through the fixing protrusion 630 or the fastening member 630 The second jig 400 and the third jig 500 connected to the first guide groove 612 and the second guide groove 613 are raised and lowered along the inclination of the first guide groove 612 and the second guide groove 613.

The second jig 400 spaced from the upper portion of the first jig 300 is formed to be inclined so as to be lowered from the front to the rear in the direction of travel of the guide plate 610 The inspection object 1000 placed on the first jig 300 descends along the first guide groove 612 and the inspection unit provided on the second jig 400 are brought into contact with each other.

The third jig 500 spaced apart from the lower portion of the first jig 300 is formed to be inclined so as to be higher from the front toward the rear in the traveling direction of the guide plate 610 And then ascends along the second guide groove 613. As the third jig 500 rises, the object to be inspected 1000 placed on the first jig 300 and the power supply unit provided on the third jig 500 contact each other to apply power to the object 1000 do.

It is preferable that the second jig 400 and the third jig 500 are separated from each other by the same distance with respect to the first jig 300. However, The inclination angles of the first guide groove 612 and the second guide groove 613 are made to correspond to the inclination angles of the first guide groove 612 and the second guide groove 613 so that the second jig 400 and the third jig 500 simultaneously form the inspection object 1000 As shown in Fig.

In addition, since the driving of the second jig 400 and the third jig 500 can be driven through one or two driving devices, the second jig 400 and the third jig 500 can be driven, It is possible to stably drive the driving means for driving the driving means while greatly reducing the number of the driving means.

The inspection object 1000 is operated by applying power to the object to be inspected 1000 through the third jig 500 and the inspection object 1000 is inspected through the inspection unit provided in the second jig 400. [ And the RF characteristics of the antenna. At this time, since the main body 100 is in a state of being closed through the closing of the door 200, stable inspection can be performed without interference from the outside.

Next, when inspection of the object to be inspected 1000 is completed, the second driving unit 620 moves the guide plate 610 backward to the inside of the main body 100. As the guide plate 610 is retracted, the second jig 400 and the third jig 500 ascend and descend along the inclination of the first guide groove 612 and the second guide groove 613, respectively, 300).

Next, the first driving unit 310 is driven to open the door 200 and the first jig 300 is exposed to the outside of the main body 100.

Finally, the inspection object 1000 having been inspected is removed from the first jig 300, the new inspection object 1000 is inserted into the groove of the first jig 300, and the above-described process is repeatedly performed.

If the second driving unit 620 is operated due to a user's mistake or malfunction of the machine, the second jig 400 and the third jig 500 may collide with each other and may be damaged or deformed. However, since the stopper 800 is provided in the main body 100 of the shield box 10 according to the present invention, the stopper 800 prevents the guide plate 610 from being driven over a certain distance. At this time, the stopper 800 controls the movement distance of the guide plate 610 such that the second jig 400 and the third jig 500 are in contact with the object to be inspected 1000, At a position where it can be restricted to a distance that does not come into direct contact with the base plate 500. Since the second jig 400 and the third jig 500 do not directly contact with each other through the stopper 800, the second jig 400 and the third jig 500 can not be damaged or deformed due to the collision, .

Since the sensor 700 can measure the driving distance of the second driving unit 620 at one side of the second driving unit 620, The unit and the power supply unit can stably contact the object to be inspected 1000.

As described above, those skilled in the art will understand that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: Shield box
100:
200: Door
300: first jig
310:
400: second jig
500: Third jig
600:
610: guide plate
611: Guide groove
612: first guide groove
613: second guide groove
620:
630: Fixing projection (fastening member)
700: Sensor
800: Stopper
1000: object to be inspected

Claims (10)

A body having a hollow interior and an open side;
A door that closes an open side of the main body;
A first jig provided in the main body and configured to move linearly in a direction of the door and on which an object to be inspected is seated;
A first driving unit for rectilinearly moving the first jig;
A second jig provided inside the body so as to be able to move up and down at a position corresponding to the first jig to inspect and correct the performance of the object to be inspected;
A third jig provided so as to be able to move up and down at a position opposite to the second jig with respect to the first jig to supply power to the object to be inspected; And
A lifting unit for lifting the second jig and the third jig;
/ RTI > The method according to claim 1,
The elevating unit includes:
And guide grooves formed on at least one of both side surfaces of the second and third jigs, respectively, with respect to the traveling direction of the first jig, and guide grooves for guiding the second jig and the third jig up and down Guide plate; And
A second driving unit reciprocating the guide plate in one direction;
/ RTI > 3. The method of claim 2,
The guide groove
A first guide groove which is inclined at a predetermined angle from a center of the guide plate toward a direction of travel of the first jig, And
A second guide groove symmetrical to the first guide groove with respect to a center axis of the first jig in the traveling direction;
/ RTI > The method of claim 3,
Wherein the first guide groove and the second guide groove are formed in plural. 3. The method of claim 2,
And a fixing protrusion inserted into the guide groove is formed on one surface of each of the second jig and the third jig facing the guide plate. 3. The method of claim 2,
And a fastening member connecting one side of each of the second jig and the third jig to the guide groove of the guide plate. 3. The method of claim 2,
Wherein the second driving unit is a cylinder or a linear actuator. 3. The method of claim 2,
And a sensor for measuring an operation state of the guide plate is further provided at one side of the second driving unit. 3. The method of claim 2,
And a stopper for limiting a driving distance of the guide plate is further provided inside the main body. The method according to claim 1,
Wherein the first jig is integral with the door.

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