CN218240101U - Conductive film detection tooling and detection system - Google Patents

Abstract

The utility model relates to a conductive film detects frock and detecting system relates to detection device technical field, includes: the device comprises a bottom plate, a first electrode and a second electrode, wherein the bottom plate is provided with a placing area for placing a conductive film to be tested; the clamping piece is movably arranged on the bottom plate and used for releasably clamping the conductive film; the flexible conductive piece is arranged on the clamping piece and provided with a contact surface used for being in electrified contact with the conductive film, and the power supply circuit is provided with a power supply interface and is electrically connected with the flexible conductive piece to supply power to the flexible conductive piece.

Description

Conductive film detection tooling and detection system

technical field

The present disclosure relates to the technical field of detection devices, in particular, to a conductive film detection tool and a detection system.

Background technique

Two-dimensional transparent conductive films are widely used in transparent electrodes, flat panel displays, touch screens, smart wear and other fields due to their high conductivity and good light transmission. With the continuous improvement of product quality requirements, it is necessary to conduct incoming inspection of the electrical performance parameters of the film.

Most of the existing electrical performance testing technologies for thin-film materials use four-probe testers to test them, but the thickness of the two-dimensional transparent conductive film is very small, and the probes of the four-probe tester can easily puncture the film, making it wrong. In addition, the four-probe test method is a contact point test, and its limitations cannot reflect the overall condition of the material.

Utility model content

The purpose of the present disclosure is to provide a conductive film detection tool and detection system, which can solve the above problems.

In order to achieve the above object, the present disclosure provides a conductive thin film detection tool, including: a bottom plate with a placement area for placing the conductive thin film to be tested; The conductive film; the flexible conductive part is arranged on the clamping part and has a contact surface for electrical contact with the conductive film, and the power supply circuit is provided with a power interface and electrically connected with the flexible conductive part to supply power to the flexible conductive part.

Optionally, a bracket is provided on the bottom plate, and the clamping member is a pressing plate connected to the bracket that can move up and down, and the flexible conductive member is fixed on the lower surface of the pressing plate, so that the conductive film can be fixed by the flexible conductive member when moving downward. on the bottom plate.

Optionally, there is a main chute on the bracket, and guide limit rods are respectively provided on both sides of the main chute, a limit plate is provided above the guide limit rod, and a main slide plate part and a position on the side edge of the pressure plate are formed. The sub-slide parts on both sides of the main slide part, the main slide part can slidably extend into the main chute, the sub-slide part has a limit hole, and the guide limit rod can be slidably inserted into the limit hole.

Optionally, there are two clips, the two clips are symmetrically arranged on opposite sides of the placement area, and the flexible conductive parts of the two clips are connected in series in the power supply circuit.

Optionally, the conductive film detection tool further includes a travel switch for switching on and off the power supply circuit, and when the clamping member moves down to the bottom plate, it contacts the travel switch to conduct the power supply circuit.

Optionally, the conductive film detection tool also includes a travel switch for switching on and off the power supply circuit. An installation box with the bottom board as the top cover is provided under the bottom plate. The travel switch is arranged in the installation box and is located below the pressure plate. There is a wire slot. The power supply circuit includes a power interface, a power switch and a conductive wire. There are two conductive wires corresponding to the two clamping parts. The conductive wire is included in the edge of the installation box for connecting the power interface and the travel switch in series. The first conductive section and the second conductive section exposed outside the installation box are used to connect the limit switch and the flexible conductive piece in series. The second conductive section is drawn from the bottom plate and passes through the wire slot and passes through the top of the pressure plate to connect with the flexible conductive piece. The power switch is connected in series with the first conductive segment of one of the conductive wires, and the power switch and the power interface are arranged at intervals on the bottom plate or the side edge of the installation box.

Optionally, the flexible conductive member is a conductive adhesive strip, which is bonded to the bottom of the clamping member.

Optionally, the placement area is a placement groove formed on the base plate, and a hollow area is provided in the placement slot, and the placement groove and the hollow area form a stepped hole, so that in a compressed state, the clamping member and the base plate The upper surface is in contact, and the flexible conductive member and the stepped surface of the stepped hole jointly clamp the conductive film.

The present disclosure also provides a detection system, including the above-mentioned conductive film detection tool, and a thermal imaging device, the thermal imaging device is used to detect thermal imaging of the conductive film fixed on the conductive film detection tool.

Optionally, a resistance testing device is also included, and the resistance testing device is used to measure the resistance value of the conductive film at the power interface located at the side of the bottom plate.

In the above technical solution, the conductive film is fixed on the bottom plate through the clamping parts, and the flexible conductive part with the contact surface is in contact with the conductive film. On the one hand, the non-destructive positioning of the conductive film can be realized, and on the other hand, the conductive film can be energized. In this way, various detection methods such as thermal imaging of the conductive film detected by a thermal imaging device can be used to realize the property detection of the conductive film after electrification.

Other features and advantages of the present disclosure will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the description, together with the following specific embodiments, are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the attached picture:

Fig. 1 is the structural representation of the conductive film detection tool described in the utility model;

Fig. 2 is a cross-sectional view of the conductive film detection tool of the present invention.

Explanation of reference signs

1. Base plate; 11. Placement slot; 12. Hollow area; 13. Installation box; 21. Guide limit rod; 22. Handle; 23. Linkage rod; 24. Clamping piece; 25. Bracket; 3. Flexible Conductive parts; 4. Power interface; 5. Power switch; 6. Cable slot; 7. Conductive wire; 8. Travel switch; 9. Conductive film.

detailed description

Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

In this disclosure, unless stated to the contrary, the orientation words used such as "upper, lower, left, and right" generally refer to the orientation in the drawing, and "inside and outside" refer to the outline relative to the part or structure itself. inside and outside. In addition, it should be noted that the terms used, such as "first, second", etc., are used to distinguish one element from another, and do not have sequence or importance. In addition, in the description with reference to the drawings, the same symbols in different drawings represent the same elements.

As shown in Figures 1-2, the present disclosure provides a conductive film detection tool, including: a bottom plate 1, for example, can be placed horizontally, and has a placement area for placing the conductive film 9 to be tested, and the conductive film 9 is placed flat In the region, the conductive film 9 is usually a two-dimensional transparent conductive film; the clamping part 24 is movably arranged on the base plate 1 for releasably clamping the conductive film 9, and the clamping part 24 fixes the conductive film 9 on the base plate 1 On: the flexible conductive member 3 is arranged on the clamping member 24 and has a contact surface for electrical contact with the conductive film 9, the conductive film 9 is fixed on the bottom plate 1 by the clamping member 24, and the flexible conductive member with the contact surface Part 3 is in contact with conductive film 9. On the one hand, non-destructive positioning of conductive film 9 can be realized. On the other hand, it can be realized as energization for conductive film 9, and conductive film 9 can be detected non-destructively. The tester performs point contact, the contact area is small, and the conductive film 9 is easily punctured; and the power supply circuit is provided with a power interface 4 and is electrically connected with the flexible conductive member 3 to supply power to the flexible conductive member 3, and the power interface 4 is connected to the external power supply. The flexible conductive member 3 supplies power to the conductive film 9 to heat the conductive film 9, detects the heat generation of the conductive film 9, intuitively presents defects such as position, shape and size, and reflects the uniformity of the film formation of the conductive film 9.

As an optional embodiment, as shown in Figure 1-2, a bracket 25 is provided on the base plate 1, the clamping member 24 is a pressing plate connected to the bracket 25 that can move up and down, and the flexible conductive member 3 is fixed on the pressing plate. Lower surface, so that the conductive film 9 can be fixed on the base plate 1 by the flexible conductive member 3 when moving downward, that is, in this embodiment, the clamping member 24 is used to move up and down relative to the base plate 1 to form a positioning device with the base plate 1 The conductive film 9 is positioned in the same way, wherein, in actual use, the pressing plate can be moved upward when placing the conductive film 9, the conductive film 9 is placed, the pressing plate is moved down, and the conductive film 9 is pressed by the flexible conductive member 3. , the pressing plate is plate-shaped, so the flexible conductive element 3 arranged at the bottom of the pressing plate also has a contact area.

Optionally, there is a main chute on the bracket 25, and the bracket 25 is composed of two opposite support plates, a main chute is formed between the two support plates, and guide limit rods 21 are respectively arranged on both sides of the main chute. , the main chute and the guide limit rod 21 are used to limit the pressure plate, so that the pressure plate moves up and down along the main chute and the guide limit rod 21, so as to avoid the left and right shaking of the pressure plate; the guide limit rod 21 is vertically arranged, and the guide limit rod The top of 21 is provided with a limiting plate, which is used to limit the height of the pressing plate. One side edge of the pressing plate is formed with a main sliding plate portion and sub-sliding plate portions located on both sides of the main sliding plate portion. The main sliding plate portion can slidably extend into the main sliding plate. The groove has a limit hole on the part of the sliding plate, and the guide limit rod 21 is slidably inserted into the limit hole. In other variants, slide rails can also be provided on the inner sides of the two side walls of the main chute, and sliders that are slidably connected to the slide rails are provided on both sides of the main slide portion of the pressing plate. The sliders not only play the role of sliding connection, It can also play a position-limiting role, so that the pressing plate will not shake from side to side. In this embodiment, the guide and position-limiting rod 21 may not be provided.

Pressing plate can be moved up and down by manual or electric mode, and manual mode is: the top of the part that press plate is positioned at main chute vertically arranges linkage bar 23, and the top of linkage bar 23 is provided with handle 22, and handle 22 is connected with linkage. The top of the moving rod 23 is hinged, and the pressing plate is moved up and down by pulling the handle 22; the electric method is: install a cylinder or an electric telescopic rod on the top of the part of the pressing plate located in the main chute, and install a mounting bracket on the bottom plate 1 for installation. The cylinder or the electric telescopic rod drives the pressure plate to move up and down through the telescopic rod of the cylinder or the electric telescopic rod.

Optionally, two clamping pieces 24 are provided, and the two clamping pieces 24 are arranged symmetrically on opposite sides of the placement area to fix the conductive film 9 in the placement area on the bottom plate 1, and the two clamping pieces 24 flexible conductive parts 3 are connected in series in the power supply circuit to form a loop, and the conductive film 9 is arranged between two flexible conductive parts 3 in the power supply circuit to detect the resistance of the conductive film 9, and the conductive film 9 connects the two flexible conductive parts The parts 3 are connected in series to conduct the power supply circuit, and when the flexible conductive part 3 is separated from the conductive film, the power supply circuit is disconnected.

In the process of taking the product to be tested, it is very easy to touch the flexible conductive part 3 and cause an electric shock. For safety reasons, the conductive film detection tool also includes a travel switch 8 for turning on and off the power supply circuit, so as to disconnect the power supply circuit when it is not necessary. . As an embodiment, it can be designed that when the clamping member 24 moves down to the bottom plate 1, it contacts the travel switch 8 to conduct the power supply circuit, the travel switch 8 is connected in series with the power supply circuit, and the travel switch is pressed when the pressure plate is at the bottom 8. The power supply circuit is in the conduction state at this time, and supplies power to the conductive film 9. When the pressure plate moves upward and away from the travel switch 8, the travel switch 8 is disconnected, and the power supply circuit is disconnected at this time to prevent electric shock. This design is to take into account that only when the conductive film 9 is positioned, there is a need for a power-on test, and there is no need for other pick-and-place processes, so the safety in the process of removing the conductive film 9 can be effectively solved.

Optionally, as shown in Figure 2, the conductive film detection tool also includes a travel switch 8 for switching the power supply circuit, the bottom of the bottom plate 1 is provided with an installation box 13 with the bottom plate 1 as the top cover, and the travel switch 8 is arranged on the installation Inside the box 13 and located below the pressure plate, its top passes through the bottom plate 1 so that the pressure plate can be in contact with the travel switch 8, the inner side of the bracket 25 is provided with a clamping groove 6, the wire inlet end of the clamping groove 6 extends to the base plate 1, and the power supply circuit It includes a power interface 4, a power switch 5 and a conductive wire 7. Two conductive wires 7 are provided corresponding to the two clamping parts 24 respectively. The conductive wire 7 includes a built-in edge of the installation box 13 for connecting the power interface 4 and the travel switch in series. 8 and the second conductive section exposed outside the installation box 13 for connecting the limit switch 8 and the flexible conductive member 3 in series, the first conductive section can fix the conductive wire 7 by setting a threading groove on the side wall of the installation box 13, Or a plurality of semicircular snap rings are arranged at intervals to fix the first conductive segment to prevent the first conductive segment from moving in the installation box 13, and the second conductive segment is drawn from the bottom plate 1 and passes through the wire clamping groove 6 and from the top of the pressure plate Through the connection with the flexible conductive part 3, the outlet end of the clamping groove 6 is located on the path of the upward movement of the pressure plate, the conductive wire 7 is flexible, and the connection between the top of the pressure plate and the flexible conductive part 3 will not hinder the movement of the pressure plate, and the power switch 5 In series with the first conductive section of one of the conductive wires 7, the power switch 5 and the power interface 4 are arranged at intervals on the side edge of the bottom plate 1 or the installation box 13. When the power switch 5 and the power interface 4 are arranged on the side edge of the bottom plate 1 , the side edge of the base plate 1 is provided with mounting holes, and the power switch 5 and the power interface 4 are installed in the mounting holes. The terminals of the power switch 5 and the power interface 4 are through holes for the conductive wire 7 to pass through.

In addition, in this embodiment, the power supply circuit is composed of circuits corresponding to the clamping parts 24 on both sides. One side is the conductive wire 7 starting from the power interface 4, and connecting the power switch 5, the travel switch 8 and the flexible conductive part 3 in series in sequence. The other side does not need to set the power switch 5, and the rest are the same, and then the flexible conductive elements 3 on both sides are connected through the conductive film 9 to form a loop, so as to conduct the entire power supply circuit.

The bottom plate 1, the support 25 and the pressing plate are made of insulating bakelite or other insulating solid plates to prevent conduction when in contact with the conductive film 9 and the flexible conductive member 3.

Optionally, the placement area can be a placement groove 11 formed on the bottom plate 1, the conductive film 9 is placed in the placement groove 11, the placement groove 11 prevents the conductive film from moving after placement, and is convenient for positioning. The placement groove 11 is provided with a hollow Area 12, to prevent the conductive film 9 from transferring heat to the base plate 1 after being energized and heating to cause false detection, the placement groove 11 and the hollow area 12 form a stepped hole, so that the clamping member 24 is in contact with the upper surface of the base plate 1 in a compressed state , the flexible conductive member 3 and the stepped surface of the stepped hole clamp the conductive film 9 together. In other forms of implementation, the placement area can also be set as a through hole, and a ring-shaped placement plate is arranged in the center of the inner side around the through hole, and the conductive film 9 is placed on the placement plate.

Optionally, the flexible conductive member 3 can be a conductive adhesive strip, which is bonded to the bottom of the clamping member 24. The conductive adhesive strip has a certain thickness, protrudes from the bottom of the pressing plate and contacts the conductive film 9, and the pressing plate moves to the bottom , its bottom can only be flush with the upper surface of the placement groove 11, and the conductive film 9 is placed in the concave placement groove 11, so the conductive adhesive strip must have a certain thickness to extend into the placement groove 11 and the conductive film 9. Contact thereby compresses the conductive film 9. In other forms of implementation, the sub-slider part of the pressing plate can also be folded down to form a Z-shape with the main slider part, and the sub-slider part can directly extend into the placement groove. At this time, the conductive adhesive strip can be Flat conductive strips.

The present disclosure also provides a detection system, including a conductive film detection tool, and a thermal imaging device, which is an infrared thermal imager or an infrared scanning imager, and the thermal imaging device is used to detect the conductive film 9 fixed on the conductive film detection tool Thermal imaging, to detect the uniformity of heating, and intuitively present the location, shape and size of defects and other bad phenomena. The infrared thermal imager does not contact the conductive film 9 during detection, so it will not damage the conductive film 9, so it is non-destructive And comprehensive inspection.

As an optional embodiment, it also includes a resistance testing device, which is a multimeter or an automatic resistance measuring instrument, and the resistance testing device is used to measure the resistance value of the conductive film 9 at the power interface 4 at the side of the base plate 1, which can accurately To test the resistance value, there is no need to screen-print electrodes on the film, and it is a non-destructive test, which will not cause any damage or waste to the film, so as to test the electrical properties of the conductive film 9 .

In actual use, as shown in Figure 1-2, first move the pressure plate upwards through the handle 22 to separate from the bottom plate 1, so that the space between the pressure plate and the bottom plate 1 that can accommodate the conductive film 9 is exposed, and the conductive film 9 is laid flat until it is placed In the area, the edge is located on the stepped hole, and the pressure plates on both sides are moved down sequentially to compress the conductive film 9, so that the conductive film 9 is fixed on the bottom plate 1; at this time, turn on the power switch 5 to make the power supply circuit in a connected state, and use the resistance test The device measures the resistance value at the power interface 4, thereby detecting the electrical properties of the conductive film 9; after measuring the resistance value, turn off the power switch 5, then connect an external power line at the power interface 4, and turn on the power switch 5 to conduct the power supply circuit At this time, the power supply circuit is energized for the conductive film 9, and the conductive film 9 is heated. The thermal imaging of the conductive film 9 is detected by a thermal imaging device, and the uniformity of heating is detected, and the position, shape and size of the defect are intuitively displayed.

The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure. These simple modifications all belong to the protection scope of the present disclosure.

In addition, it should be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner if there is no contradiction. The combination method will not be described separately.

In addition, various implementations of the present disclosure can also be combined in any way, as long as they do not violate the idea of the present disclosure, they should also be regarded as the content disclosed in the present disclosure.

Claims (10)

1. The utility model provides a conductive film detects frock which characterized in that includes:

a base plate (1) having a placement area for placing a conductive film (9) to be tested;

-a clamping member (24) movably arranged on the base plate (1) for releasably clamping the conductive film (9);

a flexible conductive member (3) disposed on the clamping member (24) and having a contact surface for electrical contact with the conductive film (9), an

And the power supply circuit is provided with a power interface (4) and is electrically connected with the flexible conductive piece (3) to supply power to the flexible conductive piece (3).

2. The conductive film detection tool according to claim 1, wherein a support (25) is arranged on the bottom plate (1), the clamping member (24) is a pressing plate which is connected to the support (25) in a vertically movable manner, and the flexible conductive member (3) is fixed to the lower surface of the pressing plate, so that the conductive film (9) can be fixed to the bottom plate (1) through the flexible conductive member (3) when moving downwards.

3. The conductive film detection tool according to claim 2, wherein the bracket (25) has a main sliding groove, two sides of the main sliding groove are respectively provided with a guide limiting rod (21), a limiting plate is arranged above the guide limiting rod (21), one side edge of the pressure plate is formed with a main sliding plate portion and sub sliding plate portions located at two sides of the main sliding plate portion, the main sliding plate portion slidably extends into the main sliding groove, the sub sliding plate portion has a limiting hole, and the guide limiting rod (21) is slidably inserted into the limiting hole.

4. The conductive film detection tool according to any one of claims 1 to 3, wherein two clamping members (24) are provided, the two clamping members (24) are symmetrically arranged on two opposite sides of the placement area, and the flexible conductive members (3) of the two clamping members (24) are connected in series in the power supply circuit.

5. The conductive film detection tool according to claim 1, further comprising a travel switch (8) for switching on and off the power supply circuit, wherein the clamping member (24) contacts with the travel switch (8) when moving downwards to the bottom plate (1) to switch on the power supply circuit.

6. The conductive film detection tool according to claim 2, further comprising a travel switch (8) for switching on and off the power supply circuit, an installation box (13) taking the bottom plate (1) as a top cover is arranged below the bottom plate (1), the travel switch (8) is arranged in the installation box (13) and is positioned below the pressure plate, the inner side of the bracket (25) is provided with a wire clamping groove (6), the power supply circuit comprises a power interface (4), a power switch (5) and a conducting wire (7), the conducting wire (7) is provided with two clamping pieces (24) which respectively correspond to the two clamping pieces, the conducting wire (7) comprises a first conducting section which is arranged at the edge of the installation box (13) in a built-in mode and is used for connecting the power interface (4) and the travel switch (8) in series, and a second conducting section which is exposed outside the installation box (13) and is used for connecting the travel switch (8) and the flexible conducting piece (3) in series, the second conductive segment is led out from the bottom plate (1) and penetrates through the wire clamping groove (6) and penetrates through the top of the pressing plate to be connected with the flexible conductive piece (3), the power switch (5) is connected in series with the first conductive segment of one of the conductive wires (7), the power switch (5) and the power interface (4) are arranged on the side edge of the bottom plate (1) or the installation box (13) at intervals.

7. The conductive film detection tool as claimed in claim 1, wherein the flexible conductive member (3) is a conductive adhesive tape adhered to the bottom of the clamping member (24).

8. The conductive film detection tool according to any one of claims 1 to 3, wherein the placement area is a placement groove (11) formed on the bottom plate (1), a hollow area (12) is formed in the placement groove (11), the placement groove (11) and the hollow area (12) form a stepped hole, so that in a compression state, the clamping piece (24) is in contact with the upper surface of the bottom plate (1), and the flexible conductive piece (3) and the stepped surface of the stepped hole clamp the conductive film (9) together.

9. A detection system is characterized by comprising

The conductive film inspection tool of any one of claims 1-8, and

and the thermal imaging device is used for detecting thermal imaging of the conductive film (9) fixed on the conductive film detection tool.

10. A detection system according to claim 9, further comprising resistance testing means for measuring the resistance value of the conductive film (9) by means of a power supply interface (4) located at the side of the base plate (1).

Images