CN212134506U

CN212134506U - Electric connection testing device

Info

Publication number: CN212134506U
Application number: CN202020585053.5U
Authority: CN
Inventors: 徐宁; 高其伟
Original assignee: OFilm Microelectronics Technology Co Ltd
Current assignee: Jiangxi OMS Microelectronics Co Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-12-11
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses an electricity connection testing arrangement, include: the device comprises a base, an image acquisition unit, an object carrying unit, a pressing unit and a display unit, wherein the base is provided with a working surface, and a first light transmission part is arranged on the working surface; the image acquisition unit is arranged on the base and is positioned below the working surface corresponding to the first light transmission part; the object carrying unit is arranged on the working surface and comprises an object carrying platform and a limiting seat, a first placing groove for placing a test piece is arranged on the limiting seat, a second placing groove for placing the test piece to be tested is arranged on the object carrying platform, and the first placing groove and the second placing groove are communicated with each other; the bottom of the first placing groove is provided with a second light-transmitting part corresponding to the first light-transmitting part at a position close to the opening side; the pressing unit is connected with the base, is positioned on the base and is positioned on one side of the carrying unit, which is far away from the base; the image acquisition unit is used for acquiring images through the first light transmission part and the second light transmission part. Therefore, the circuit components are placed in the base, a large amount of space is saved, and the objective table is only about one third of the traditional design.

Description

Electric connection testing device

Technical Field

The utility model belongs to the technical field of the electronic product test and specifically relates to a test device is connected to electricity.

Background

In the related art, when a conductive structure of a flexible material (such as a flexible screen) needs to be tested, a flexible FPC is generally required to be fixed below a cylinder, and the flexible material is placed between the FPC and a cylinder pressure head, so that the electrical connection state information of the flexible material and the FPC and the like can be acquired through an image acquisition unit arranged below the flexible FPC, and then the test is realized. But the existing test scheme is inconvenient to clamp and very difficult to debug, and the indentation of the product is easy to occur because the air cylinder pressure head is generally made of a round hard material, and meanwhile, the placing area is usually arranged in a single side leaning position based on a flexible material, so that the instability of the test is increased. In addition, manual test fixture is bulky, be similar to small-size board, and staff's transport is inconvenient, can only fixed point operation, and the material loading mesa is too high, leads to staff's operation inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an electrical connection testing device, which is small and convenient to operate.

According to the utility model discloses electricity connection testing arrangement, include: the device comprises a base, an image acquisition unit, an object carrying unit, a pressing unit and a display unit, wherein the base is provided with a working surface, and a first light transmission part is arranged on the working surface; the image acquisition unit is arranged on the base and is positioned below the working face corresponding to the first light transmission part; the object carrying unit is arranged on the working surface and comprises an object carrying table and a limiting seat, a first placing groove used for placing at least a test piece is arranged on the limiting seat, a second placing groove used for placing a piece to be tested is arranged on the object carrying table, the first placing groove and the second placing groove are communicated with each other, and the distance between the groove bottom of the first placing groove and the working surface is smaller than the distance between the groove bottom of the second placing groove and the working surface; the bottom of the first placing groove is provided with a second light-transmitting part corresponding to the first light-transmitting part at a position close to the opening side; the pressing unit is connected with the base, is positioned on the base and is positioned on one side of the carrying unit, which is far away from the base; the pressing unit is provided with a pressing head corresponding to the second light transmission part; the image acquisition unit is used for acquiring images of the piece to be tested and the test piece through the first light transmission part and the second light transmission part so as to acquire the connection state of the piece to be tested and the test piece.

According to the utility model discloses electricity connection testing arrangement adjusts objective table to suitable position, makes the electric connection portion of waiting to test the piece relative with the test piece, thereby the pressure head of pushing down the unit will wait to test the piece and compress tightly with the test piece and make both can stabilize the electric conductance and lead to, and the image acquisition unit can gather the cooperation information of waiting to test the piece and test the piece accurately in the transparent region of second, the below in first transparent region. The test piece is placed on the limiting seat on the base, and circuit components such as the circuit board can be placed inside the base, so that a large amount of space is saved, and the objective table is only about one third of the traditional design.

In some embodiments, the display unit is disposed on the base, and the display unit is electrically connected to the image capturing unit to display the image captured by the image capturing unit. From this, with this image information transmission to display element, display element can show the cooperation image of test piece and awaiting measuring the piece in real time to adjust the position that the pressure head pushed down in real time according to the cooperation image, thereby guarantee to debug after survey the test piece and await measuring stable electricity between the piece and being measured and be connected.

In some embodiments, the device further comprises a first motion platform connected with the image acquisition unit to drive the image acquisition unit to move horizontally or move up and down. From this, first motion platform can have the slide rail that can adjust along these three directions of base length direction, width direction, direction of height to make the image acquisition unit all adjust at above-mentioned three degrees of freedom, realize accurate counterpoint.

In some embodiments, the carrier unit includes a second motion platform connected to the carrier to move the carrier along two horizontal directions orthogonal to each other. From this, the objective table can move in the horizontal direction to adjust the position of waiting to test the piece, make it and test piece can accurate counterpoint.

In some embodiments, the hold-down unit comprises a drive cylinder, the drive cylinder being a pneumatic or hydraulic cylinder; the automatic lifting device is characterized in that an inverted U-shaped portal frame is arranged on the base, longitudinal beams of the portal frame are arranged on two sides of the loading unit and are respectively connected with the base, the driving cylinder is connected with a cross beam of the portal frame, and the driving cylinder is connected with the pressure head to drive the pressure head to move up and down. Like this, through pneumatic cylinder or cylinder drive pressure head lift or fall to lift upwards in order to release the extrusion of treating the test piece before the test or after the test, to await measuring the accurate back of counterpointing of test piece and test piece downstream in order to support and lean on the top of waiting to test piece and the electric connection department of test piece, guarantee the stability of test in-process electric current.

In some embodiments, the electrical connection portion of the test piece is a gold finger, and the gold finger is arranged on one side of the test piece away from the bottom of the first placing groove; the electric connection part of the piece to be tested is arranged on one side, close to the bottom of the second placing groove, of the piece to be tested, and the electric connection part of the piece to be tested corresponds to the golden finger. From this, the test piece can come location fit through the golden finger with the test piece that awaits measuring, makes the cooperation of awaiting measuring the test piece and test piece more reliable and stable, and FPC places the position and has high accuracy spacing, prevents that the pressure head from pushing down the material during and rocking.

In some embodiments, the indenter uses a gum stick. Therefore, the pressure head adopts a round rod made of the gel, and can avoid crushing the piece to be tested while ensuring enough pressing force.

In some embodiments, the indenter has a hardness of: shore hardness: 70-80 degrees. Therefore, the hardness of the pressure head is moderate, the test piece to be tested is prevented from being damaged by too hard pressure, and too soft pressing force is insufficient.

In some embodiments, the depth of the first placement groove matches the sum of the thicknesses of the test piece and the test piece to be tested. Therefore, the part of the to-be-tested piece, which is superposed on the testing piece, is flush with the surface of the limiting seat, the surface of the to-be-tested piece is prevented from protruding or sinking on the surface of the limiting seat, and the testing is more convenient.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a three-dimensional split of a testing device according to an embodiment of the present invention.

Fig. 2 is a partially enlarged schematic view of the region C in fig. 1.

Fig. 3 is a perspective view of a testing device according to an embodiment of the present invention.

Fig. 4 is a left side view of a testing device according to an embodiment of the present invention.

Fig. 5 is a front view of a testing device according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of an initial state of a testing device according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a test piece of the testing device according to an embodiment of the present invention in an attached state.

Fig. 8 is a schematic diagram of a loading state of a testing device according to an embodiment of the present invention.

Fig. 9 is a schematic diagram of an operation state of the testing apparatus according to an embodiment of the present invention.

Reference numerals:

the testing device 100, the testing part 200, the electrical connection part 201 of the testing part 200, the device 300 to be tested, the electrical connection part 301 of the device 300 to be tested,

a base 10, a first light transmission part 11,

the image-acquisition unit 20 is provided with,

the carrier unit 30, the carrier table 31, the second placing groove 311, the second moving platform 32,

a stopper 41, a first placing groove 411, a second light-transmitting portion 412,

a pressing unit 50, a pressing head 51, a driving cylinder 52, a gantry 53,

a display unit 60, a first motion platform 70 and a working surface b.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

A test device 100 for testing a test piece 300 according to an embodiment of the present invention is described below with reference to fig. 1 to 9.

As shown in fig. 1 to 5, a testing device 100 for testing a test piece 300 according to an embodiment of the present invention includes: the device comprises a base 10, an image acquisition unit 20, a carrying unit 30, a connecting unit 40 and a pressing unit 50.

The base 10 has a working surface b, and the working surface b is provided with a first light transmission portion 11. The image pickup unit 20 is disposed on the base 10 and below the first light transmission portion 11 corresponding to the working surface b. The carrying unit 30 is arranged on the working surface, the carrying unit 30 comprises a carrying platform 31 and a limiting seat 41, a first placing groove 411 for placing at least the test piece 200 is arranged on the limiting seat 41, a second placing groove 311 for placing the test piece 300 to be tested is arranged on the carrying platform 31, the first placing groove 411 and the second placing groove 311 are communicated with each other, wherein the distance between the groove bottom of the first placing groove 411 and the working surface b is smaller than the distance between the groove bottom of the second placing groove 311 and the working surface b; the bottom of the first placement groove 411 has a second light-transmitting portion 412 corresponding to the first light-transmitting portion 11 at a position close to the open side. The pressing unit 50 is connected with the base 10 and is located on one side of the carrying unit 30 away from the base 10; the pressing unit 50 has a pressing head 51 corresponding to the second light transmission portion 412.

The device comprises a first placing groove 411, a to-be-tested device 300, an image acquisition unit 20 and a second light transmission part 412, wherein the to-be-tested device 300 extends into the first placing groove 411 to be superposed on the testing device 200, a pressure head 51 is used for pressing against the area where the to-be-tested device 300 and the testing device 200 are superposed, so that an electric connection part 201 of the testing device 200 is jointed with an electric connection part 301 of the to-be-tested device 300, and the image acquisition unit 20 is used for acquiring images of the to-be-tested device 300 and the testing device 200 through the first light transmission.

The test piece 200 is placed in the first placing groove 411 of the limiting seat 41, the top surface of the test piece 200 is substantially flush with the bottom of the second placing groove 311, the test piece 300 to be tested is placed in the second placing groove 311 of the stage 31, the part of the test piece 300 to be tested, which is provided with the electric connecting part 301, extends and is overlapped above the test piece, the area where the test piece 300 to be tested and the test piece 200 are electrically connected with each other is opposite to the first light-transmitting part 11 and the second light-transmitting part 412, and the matching condition of the two can be collected by the image collecting unit 20.

According to the utility model discloses testing arrangement 100 adjusts objective table 31 to suitable position, makes the electric connection portion of waiting to test piece 300 relative with test piece 200, and test piece 200 is located waiting to test piece 300 below, thereby the pressure head 51 of pushing down unit 50 will wait to test piece 300 and test piece 200 and compress tightly and make both can stabilize the electric conduction, and the cooperation information of waiting to test piece 300 and test piece 200 can be gathered accurately to the image acquisition unit in the below of second printing opacity portion 412. The test piece 200 is placed on the limiting seat 41 on the base 10, so that circuit components such as a circuit board and the like can be completely placed inside the base 10, a large amount of space is saved, and the objective table 31 is only about one third of the traditional design.

The stage 31 may be an acrylic plate, and the first light-transmitting portion 11 may be a light-transmitting hole or a transparent region that enables the image pickup unit 20 to pick up an image. The position limiting base 41 can fix and position the testing device 200, and the device 300 to be tested can be an electronic product, such as a flexible screen, which needs to be electrically tested.

In some embodiments, the display unit 60 is disposed on the base 10, and the display unit 60 is electrically connected to the image capturing unit 200 to display the image captured by the image capturing unit 20, so that the operator can adjust the positions of the object stage 31 and the image capturing unit 20 according to the displayed image. Therefore, the image acquisition unit 20 sends the image information to the display unit 60, and the display unit 60 can display the matching image of the test piece 200 and the test piece 300 to be tested in real time, so as to adjust the pressing position of the pressing head 51 in real time according to the matching image, thereby ensuring stable electric connection between the test piece 200 and the test piece 300 to be tested after debugging.

In some embodiments, the testing device 100 further comprises a first motion platform 70, wherein the first motion platform 70 is connected to the image capturing unit 20 to drive the image capturing unit 20 to move horizontally or up and down. Therefore, the first moving platform 70 may have a slide rail that can be adjusted along three directions, i.e., the length direction, the width direction, and the height direction of the base 10, so that the image capturing unit 20 can be adjusted in all of the three degrees of freedom, and accurate alignment is achieved.

Of course, the present invention is not limited thereto, and the image capturing unit 20 can also be fine-tuned by using a simple clamp.

In some embodiments, the carrier unit 30 includes a second motion platform 32, and the second motion platform 32 is connected to the carrier 31 to move the carrier 31 along two horizontal directions orthogonal to each other. Specifically, the second motion stage 32 may be an XY stage, i.e., capable of sliding the stage 31 in the longitudinal direction of the base 10 and the width direction of the base 10. Therefore, the stage 31 can move in the horizontal direction to adjust the position of the object 300 to be tested, so that the object can be accurately aligned with the test object 200.

In some embodiments, the hold-down unit 50 includes a drive cylinder 52, the drive cylinder 52 being a pneumatic or hydraulic cylinder; the base 10 is provided with an inverted U-shaped portal frame 53, the longitudinal beams of the portal frame 53 are respectively connected with the base 10 at two sides of the loading unit 30, the driving cylinder 52 is connected with the cross beam of the portal frame 53, and the driving cylinder 52 is connected with the pressure head 51 to drive the pressure head 51 to move up and down. In this way, the hydraulic cylinder or the air cylinder drives the ram 51 to lift up or fall down, so as to lift up to release the extrusion of the to-be-tested piece 300 before or after the test, and move down to abut against the top of the electric connection part of the to-be-tested piece 300 and the test piece 200 after the to-be-tested piece 300 and the test piece 200 are accurately aligned, thereby ensuring the stability of the current in the test process.

In some embodiments, the first placement groove 411 communicates with the second placement groove 311, and a portion of the bottom wall of the first placement groove 411 near the second placement groove 311 is formed as the second light-transmitting portion 412. Therefore, after the to-be-tested piece 300 is placed in the second placing groove 311, the golden finger of the to-be-tested piece 300 extends out of the main body part and extends into the upper part of the second light transmission part 412 of the first placing groove 411, accurate alignment can be achieved by one-time placement, and the contact area between the to-be-tested piece 300 and the to-be-tested piece 200 can be located in the second light transmission part 412, so that image collection is facilitated.

The electrical connection portion 201 of the test piece 200 is a gold Finger (FPC) disposed on one side of the test piece 200 away from the bottom of the first placing groove 411; the electric connection portion 301 of the to-be-tested device 300 is disposed on one side of the to-be-tested device 300 close to the bottom of the second placement groove, and the electric connection portion 301 of the to-be-tested device 300 is disposed corresponding to the golden finger. From this, test piece 200 and waiting to test piece 300 can come the location fit through the golden finger, make the cooperation of waiting to test piece 300 and test piece 200 more reliable and stable, and the golden finger is placed the position and is had the high accuracy spacing, prevents that the pressure head 51 from pushing down the material during and rocking.

The image acquisition unit 20 may be a high-definition CCD lens, a product with a large number of electrical connection portions 301 of the to-be-tested object 300 should employ a dual high-definition CCD lens, and a single high-definition CCD lens may be employed with a moderate number of electrical connection portions 301 of the to-be-tested object 300.

In some embodiments, the ram 51 is a gum stick. The Yuli rubber is named polyurethane resin or polyurethane, is an elastomer between plastic and rubber, and has the good performances of wear resistance, chemical corrosion resistance, high elasticity, tearing resistance, radiation resistance, shock absorption, buffering and the like. Therefore, the pressure head 51 is a round rod made of the super glue, and the piece 300 to be tested can be prevented from being extruded and damaged while enough pressing force is ensured.

In some embodiments, the indenter 51 has a hardness of: shore hardness: 70-80 degrees. Therefore, the hardness of the indenter 51 is moderate, so that the test piece 300 to be tested is prevented from being damaged by too hard pressure, and too soft pressing force is insufficient.

In some embodiments, the depth of the first placement groove 411 matches the sum of the thicknesses of the test piece 200 and the test piece 300. That is, the thickness of the region where the test piece 300 and the test piece 200 are stacked on each other to be electrically connected, that is, the sum of the thicknesses of both the test piece 200 and the test piece 300, is consistent with the depth of the first placement groove 411. Therefore, the part of the to-be-tested piece 300, which is superposed on the testing piece 200, is flush with the surface of the limiting seat 41, so that the surface of the to-be-tested piece 300 is prevented from protruding or sinking on the surface of the limiting seat 41, and the testing is more convenient.

The operation of the testing device 100 according to the embodiment of the present invention is described in detail below with reference to fig. 6 to 9.

As shown in fig. 6, in an initial state, the driving cylinder 52 (e.g., an air cylinder) and the indenter 51 are in an upward position, as shown in fig. 7, the test piece 200 is in an attached state, the test piece 200 is located in the first placing groove 411 of the limiting seat 41, the electrical connection portion 201 of the test piece 200 is upward, as shown in fig. 8, in a loading state, the test piece 300 is placed in the second placing groove 311, the electrical connection portion 301 of the test piece 300 faces downward and is adapted to the golden finger of the test piece 200, the position of the indenter 51 is adjusted to ensure that the indenter 51 is centered in the golden finger of the test piece 300, the high-definition CCD lens is adjusted in a direction to align to the first golden finger of the electrical connection portion 301 of the test piece 300, and if the material is long (the material is warped), the first position alignment of the dual high-definition; as shown in fig. 9, in the working state, the air cylinder drives the pressing head 51 to move downwards, and the pressing head 51 presses the to-be-tested piece 300, so that the electric connection part 301 of the to-be-tested piece 300 is in good contact with the electric connection part 201 of the test piece 200.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electrical connection testing device, comprising:

the base is provided with a working surface, and a first light transmission part is arranged on the working surface;

the image acquisition unit is arranged on the base and is positioned below the working face corresponding to the first light transmission part;

the object carrying unit is arranged on the working surface and comprises an object carrying table and a limiting seat, a first placing groove for placing a test piece is formed in the limiting seat, a second placing groove for placing a to-be-tested piece is formed in the object carrying table, the first placing groove and the second placing groove are communicated with each other, and the distance between the bottom of the first placing groove and the working surface is greater than the distance between the bottom of the second placing groove and the working surface; the bottom of the first placing groove is provided with a second light-transmitting part corresponding to the first light-transmitting part at a position close to the opening side;

the pressing unit is connected with the base and is positioned on one side, away from the base, of the carrying unit, and the pressing unit is provided with a pressing head arranged corresponding to the second light transmission part;

the image acquisition unit is used for acquiring images of the piece to be tested and the test piece through the first light transmission part and the second light transmission part so as to acquire the connection state of the piece to be tested and the test piece.

2. The electrical connection testing device of claim 1, further comprising:

the display unit is arranged on the base and electrically connected with the image acquisition unit so as to display the image acquired by the image acquisition unit.

3. The electrical connection testing device of claim 1, further comprising a first motion platform connected to the image capturing unit to drive the image capturing unit to move horizontally or up and down.

4. The electrical connection testing device of claim 1, wherein the carrier unit comprises a second motion platform coupled to the carrier to move the carrier in two horizontal directions orthogonal to each other.

5. The electrical connection testing device of claim 1, wherein the press-down unit comprises a driving cylinder, the driving cylinder being a pneumatic or hydraulic cylinder; the automatic lifting device is characterized in that an inverted U-shaped portal frame is arranged on the base, longitudinal beams of the portal frame are arranged on two sides of the loading unit and are respectively connected with the base, the driving cylinder is connected with a cross beam of the portal frame, and the driving cylinder is connected with the pressure head to drive the pressure head to move up and down.

6. The electrical connection testing device of claim 1, wherein the electrical connection portion of the testing piece is a gold finger disposed on a side of the testing piece away from a bottom of the first placement groove; the electric connection part of the piece to be tested is arranged on one side, close to the bottom of the second placing groove, of the piece to be tested, and the electric connection part of the piece to be tested corresponds to the golden finger.

7. The electrical connection testing device of any one of claims 1-6, wherein the indenter is a lyocell stick.

8. The electrical connection testing device of claim 7, wherein the indenter has a hardness of: shore hardness: 70-80 degrees.

9. The electrical connection testing device according to claim 1, wherein a depth of the first placement groove matches a sum of thicknesses of the test piece and the piece to be tested.