Detection tool for transparent conductive film

Abstract

The utility model discloses a detection tool for a transparent conductive film. The detection tool comprises an object placing plate; the positioning mechanism comprises an adjusting assembly and four positioning assemblies, the positions of center lines, distributed in an annular array mode, of the four positioning assemblies are fixed, each positioning assembly comprises a positioning base, a probe and an elastic piece, in the four positioning assemblies, connecting lines between probe tips are combined to form a square, and the adjusting assembly is used for adjusting the distances between the four positioning assemblies and the center lines. When the carrier concentration detection tool of the transparent conductive film is used, after a square glass sheet is placed on the object placing surface, the four positioning seats are driven by the adjusting assembly to move and adjust positions at the same time, so that the four positioning seats are in contact with the four corners of the glass sheet in an attached mode at the same time, then the tips of the probes abut against the glass sheet through the elastic pieces, and positioning is completed; operation is convenient, detection efficiency can be improved, the moving amplitudes of the four probes are consistent, it is guaranteed that connecting lines of needle tips form a square, and detection precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic detection technical field especially is related to a detection frock of transparent conductive film. BACKGROUND

[0002] Transparent conductive film is one of important components of solar cell piece, in the production process of solar cell piece, usually deposit transparent conductive film on glass sheet, cut glass sheet into square to carry out the related performance test of transparent conductive film.

[0003] In prior art, the carrier concentration of transparent conductive film deposited on glass sheet is usually detected by Hall effect detector, when operating, the glass sheet deposited with transparent conductive film is placed on the support plate, the position of four probes on the carrier is adjusted, the needle tip of four probes is abutted on the position adjacent to four corners of glass sheet, and the line combination of needle tip of four probes forms a square (in order to simplify measurement and calculation, the film to be detected is often required to be square, because square has high symmetry, four vertices of square material are completely equivalent in geometry);Then the detection connector of support plate fixed with glass to be detected is inserted into the socket of Hall effect detector, and the film on glass sheet can be detected.

[0004] However, the carrier of Hall effect detector in prior art has simple structure, when fixing glass sheet, four probes need to be operated one by one, and the position of probe needs to be adjusted, so the operation of probe is troublesome, and the detection efficiency is reduced, and in addition, because the size of glass sheet is small, the side length size is between 10mm to 15mm, and the thickness is less than 2mm, when the position of probe is adjusted and the needle tip of four probes is respectively opposite to four corners of glass sheet to lock glass sheet on the support plate, the fingers of detection personnel are easy to accidentally touch probe or glass sheet, so that the position of probe and glass sheet is deviated, finally the figure formed by the line between probe needle tip is greatly different from square, and the detection precision of transparent conductive film is affected.

[0005] Therefore, it is necessary to improve the carrier concentration detection carrier in prior art. UTILITY MODEL CONTENT

[0006] The utility model aims at overcoming the defects in prior art, and provides a detection frock of transparent conductive film which is convenient to operate and is favorable for improving detection efficiency and detection precision.

[0007] In order to realize the above technical effect, the technical scheme of the utility model is as follows: a detection frock of transparent conductive film, comprising:

[0008] A shelf, one end of which is provided with a detection connector, the shelf having a shelf surface and an adjustment surface opposite to each other along its own thickness direction, the shelf surface being used to lay a square glass plate flat;

[0009] The positioning mechanism includes an adjustment component disposed on the adjustment surface and four positioning components arranged in a ring array on the placement surface. The center line of the four positioning components arranged in the ring array is perpendicular to the placement surface and their positions are fixed. Each positioning component includes a positioning seat, a probe facing the placement surface and adjacent to the side of the positioning seat near the center line, and an elastic element that causes the probe to move closer to the placement surface. The probe is electrically connected to a detection connector. Among the four positioning components, the lines connecting the tips of the probes form a square with its center located at the center line. The adjustment component is used to adjust the distance between the four positioning components and the center line.

[0010] Preferably, in order to achieve precise positioning of the glass sheet, a positioning groove is provided on the side of the positioning seat adjacent to the center line. The positioning groove extends along the thickness direction perpendicular to the positioning seat, and the two inner sidewalls of the positioning groove extend in mutually perpendicular directions.

[0011] Preferably, in order to prevent the feet of the glass sheet from being damaged by excessive compression, an elastic buffer pad is provided on the inner side wall of the positioning groove.

[0012] Preferably, in order to prevent the glass sheet from detaching from the placement surface during the positioning process, a limiting member is provided at the end of the positioning groove away from the placement surface, and the distance between the limiting member 45 and the placement surface is equal to the thickness of the glass sheet.

[0013] Preferably, in order to ensure that the probe tip abuts against the corner of the glass plate, the side of the detection seat facing away from the placement plate is provided with a horizontal arm, the probe slides through the horizontal arm along its own length direction, the probe is provided with a convex disk located between the horizontal arm and the placement surface, and the elastic element is a compression spring with both ends abutting against the convex disk and the horizontal arm.

[0014] Preferably, for ease of positioning, the limiting member has a protrusion on the side facing away from the placement surface, and a locking strip is fixed on the probe. The probe rotates around its own axis on the cross arm. The probe's movement path includes a detection position and a locking position. In the locking position, the side of the locking strip adjacent to the placement surface abuts against the protrusion, and the distance between the probe and the placement surface is greater than the thickness of the glass sheet. In the detection position, the locking strip is separated from the protrusion, and the distance between the probe and the placement surface is less than or equal to the thickness of the glass sheet. The convex plate is located on the side of the locking strip facing away from the placement surface.

[0015] Preferably, in order to ensure that the probe is stressed uniformly, the protrusions are provided with two, which are arranged on both sides of the probe axis.

[0016] Preferably, in order to realize the same amplitude movement of the four positioning seats, the adjusting assembly comprises a screw rod, a screw sleeve and four connecting rods, the axis of the screw rod coincides with the center line, the screw rod rotates around its axis on the adjusting surface, the screw sleeve is threadedly connected with the screw rod, the four connecting rods correspond to the four positioning assemblies one by one, one end of each connecting rod is hingedly connected with the screw sleeve, and the other end is connected with the corresponding positioning seat.

[0017] Preferably, in order to drive the positioning seat to move through the connecting rod, the storage plate is further provided with a sliding port corresponding to the four connecting rods one by one, the sliding port extends along the distribution direction of the positioning seat and the center line, the sliding port is a through hole, the positioning seat is fixedly connected with a sliding plate slidingly arranged in the sliding port, and the sliding plate is connected with the end of the corresponding connecting rod.

[0018] Preferably, in order to realize stable movement of the positioning seat, one end of the sliding plate away from the positioning seat is fixedly connected with a connecting seat, and the storage plate is attached between the connecting seat and the positioning seat.

[0019] In conclusion, compared with the prior art, the detection tool of the transparent conductive film places the square glass sheet on the storage surface, drives the four positioning seats to move simultaneously through the adjusting assembly, adjusts the position, makes the four positioning seats simultaneously attach to and contact with the four corners of the glass sheet, and then uses the elastic member to make the probe needle tip abut against the glass sheet, so that positioning is completed, the operation is convenient, it is not necessary to adjust the position of the four probes one by one, the detection efficiency is improved, the movement amplitudes of the four probes are consistent, the line formed by the needle tips is a square, and the detection precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model after positioning the glass sheet;

[0021] Figure 2 is Figure 1 an exploded schematic view;

[0022] Figure 3 is Figure 1 a top view;

[0023] Figure 4 is Figure 1 an exploded schematic view from another perspective;

[0024] Figure 5 is a structural schematic view of the utility model in an idle state;

[0025] Figure 6 is Figure 5is the explosion schematic view of the utility model;

[0026] Figure 7 is the structure schematic view of the positioning assembly of the utility model;

[0027] Figure 8 is Figure 7 the explosion schematic view of the utility model;

[0028] In the drawing: 1, the article board; 11, detection connector; 12, article surface; 13, adjustment surface; 14, sliding mouth; 2, glass sheet; 3, adjustment assembly; 31, screw rod; 311, adjustment screw cap; 32, screw sleeve; 33, connecting rod; 34, central shaft; 341, positioning convex cover; 342, fixed convex plate; 4, positioning assembly; 41, positioning seat; 411, positioning through slot; 412, sliding plate; 413, connecting seat; 414, connecting column; 42, probe; 421, convex disc; 422, locking batten; 423, switching screw cap; 43, elastic member; 44, buffer clamp pad; 45, limiting member; 451, protrusion; 452, perforation; 46, cross arm. DETAILED DESCRIPTION

[0029] The specific implementation of the utility model will be further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot be used to limit the protection scope of the utility model.

[0030] As Figures 1-8 shown, the transparent conductive film detection tool of the utility model includes:

[0031] The article board 1 is provided with a detection connector 11 at one end, and the article board 1 has an article surface 12 and an adjustment surface 13 opposite along the thickness direction thereof, the article surface 12 is used for placing a square glass sheet 2, and the detection connector 11 is used for connecting with the socket of a Hall effect detector;

[0032] The positioning mechanism includes an adjustment assembly 3 arranged on the adjustment surface 13 and four positioning assemblies 4 arranged in an annular array on the article surface 12, the center line of the annular array of the four positioning assemblies 4 is perpendicular to the article surface 12 and is fixed in position, each positioning assembly 4 includes a positioning seat 41, a probe 42 facing the article surface 12 and located close to the center line on the side adjacent to the positioning seat 41, an elastic member 43 for making the probe 42 have a moving trend close to the article surface 12, the probe 42 is electrically connected with the detection connector 11, and among the four positioning assemblies 4, the connecting line between the probe tips of the probes 42 is combined to form a square with the center located on the center line, and the adjustment assembly 3 is used for adjusting the distance between the four positioning assemblies 4 and the center line.

[0033] When the detection tool is used, first, the four positioning assemblies 4 are controlled to move away from each other by the adjusting assembly 3, so that the distance between the positioning assemblies 4 and the center line increases, then the square glass sheet 2 on which the transparent conductive film is deposited is placed on the placement surface 12 of the placement plate 1, the glass sheet 2 is located between the four positioning seats 41 of the four positioning assemblies 4 and the four corners of the glass sheet 2 are opposite to the four positioning seats 41, and the transparent conductive film on the glass sheet 2 is located on the side of the glass sheet 2 away from the placement surface 12; then, the four positioning seats 41 are controlled to move towards the center line of the annular array distribution of the four positioning assemblies 4 at the same moving speed by the adjusting assembly 3, so that the positioning seats 41 abut against the four corners of the glass sheet 2, the needle tip parts of the four probes 42 abut against the four corners of the glass sheet 2 through the elastic members 43, the line connecting the contact positions of the needle tips of the four probes 42 and the center of the square formed by the line combination are located on the center line of the annular array distribution of the four positioning assemblies 4 (hereinafter referred to as the center line), and the detection connector 11 is connected with the socket of the Hall effect detector, so that the carrier concentration of the transparent conductive film on the glass sheet 2 can be detected by the Hall effect detector.

[0034] Compared with the prior art, the detection tool of the utility model can drive the four positioning assemblies 4 to move synchronously by controlling the adjusting assembly 3, so that the positioning seats 41 in the four positioning assemblies 4 can be positioned at the four corners of the glass sheet 2 on the placement surface 12 respectively, the position of each positioning assembly 4 does not need to be adjusted one by one, the operation is convenient, and the detection efficiency is improved; and the relative position between the axis of the probe 42 and the positioning seat 41 in the positioning assembly 4 is fixed, so that when the probe 42 abuts against the glass sheet 2 through the elastic member 43, the line connecting the needle tips of the four probes 42 forms a square, the center of the square is located on the center line, and the detection precision is improved.

[0035] Further improvement is that the positioning groove 411 is arranged on the side of the positioning seat 41 adjacent to the center line, the positioning groove 411 extends along the thickness direction perpendicular to the positioning seat 41, and the two inner side walls of the positioning groove 411 extend in directions perpendicular to each other.

[0036] Specifically, one side of the positioning seat 41 is attached to the placement surface 12, the thickness of the positioning seat 41, the length of the positioning groove 411 and the thickness of the glass sheet 2 are equal, the projections of the two inner side walls of the positioning groove 411 on the placement surface 12 form an included angle of 90°, so that when the positioning seat 41 moves close to the center line, the side walls of the four corners of the glass sheet 2 located between the four positioning seats 41 are sealingly attached to the two side walls of the positioning groove 411 on the four positioning seats 41, and the positioning precision of the glass sheet 2 is ensured.

[0037] Further improvement is that the inner side wall of the positioning through slot 411 is provided with a elastic buffer clamp 44. Specifically, the buffer clamp 44 is a rubber pad or a silica gel pad. After the buffer clamp 44 is arranged on the inner wall of the positioning through slot 411, when the four positioning seats 41 move close to the glass sheet 2, the elastic buffer clamp 44 slightly elastically deforms, so as to ensure that the buffer clamp 44 is sealingly connected with the four corner side walls of the glass sheet 2, thereby avoiding that the glass sheet 2 is difficult to be aligned with the inner bottom wall of the positioning through slot 411 due to burrs at the corner position of the glass sheet 2. Thus, through the elastic buffer clamp 44, the four positioning through slots 411 can be sealingly connected with the four corner side walls of the glass sheet 2 in the positioning state, and the slots are aligned with the center line of the glass sheet 2.

[0038] Further improvement is that the end of the positioning through slot 411 away from the placement surface 12 is provided with a limiting piece 45, and the distance between the limiting piece 45 and the placement surface 12 is equal to the thickness of the glass sheet 2.

[0039] Specifically, the limiting piece 45 is a limiting strip, and the two ends of the limiting piece 45 are fixed to the side of the positioning seat 41 away from the placement surface 12. The distance between the limiting piece 45 and the placement surface 12 is equal to the thickness of the glass sheet 2, so that when the corner of the glass sheet 2 is located in the positioning through slot 411, the glass sheet 2 is connected between the limiting piece 45 and the placement surface 12, thereby avoiding that the glass sheet 2 is separated from the placement surface 12 due to extrusion.

[0040] Further improvement is that the side of the detection seat away from the placement plate 1 is provided with a cross arm 46, the probe 42 slides through the cross arm 46 along the length direction of the probe 42, the probe 42 is provided with a convex disc 421 located between the cross arm 46 and the placement surface 12, and the elastic piece 43 is a compression spring with the two ends abutting against the convex disc 421 and the cross arm 46.

[0041] The side of the positioning seat 41 away from the placement surface 12 is provided with a connecting column 414 axially parallel to the center line, one end of the cross arm 46 is fixedly connected with the connecting column 414, the other end of the cross arm 46 is sealingly penetrated by the probe 42, and the end of the probe 42 away from the placement surface 12 is provided with a switching rotary cover 423. Through the compression spring with the two ends abutting against the convex disc 421 and the cross arm 46, the elastic piece 43 can apply pressure to the probe 42, so as to ensure that the needle tip of the probe 42 can abut against the corner of the glass sheet 2. The limiting piece 45 is further provided with a through hole 452 extending along the thickness direction of the limiting piece 45 and in a through hole shape, and the through hole 452 is used for the needle tip of the probe 42 to pass through.

[0042] Further improvement is that the side of the limiting member 45 opposite to the placement surface 12 is provided with a protrusion 451, the probe 42 is fixed with a locking pressing strip 422, the probe 42 rotates on the horizontal arm 46 around the axis of the probe 42, the movement path of the probe 42 includes a detection position and a locking position, in the locking position, the locking pressing strip 422 abuts on the protrusion 451 on the side of the placement surface 12 adjacent to the locking pressing strip 422, the distance between the probe 42 and the placement surface 12 is greater than the thickness of the glass sheet 2, in the detection position, the locking pressing strip 422 is separated from the protrusion 451, the distance between the probe 42 and the placement surface 12 is less than or equal to the thickness of the glass sheet 2, the convex disc 421 is located on the side of the locking pressing strip 422 opposite to the placement surface 12; the protrusion 451 is provided with two, which are arranged on both sides of the axis of the probe 42.

[0043] Specifically, the locking pressing strip 422 is fixed on the side of the convex disc 421 adjacent to the needle tip of the probe 42, the projection of the convex disc 421 on the placement surface 12 is located between the projections of the two protrusions 451 on the placement surface 12 and is separated; before positioning the glass sheet 2, the probe 42 is controlled to move away from the placement surface 12 along the axis of the probe 42 and rotate by switching the switch cap 423, so that the projections of the two ends of the locking pressing strip 422 on the placement surface 12 correspond to the positions of the projections of the two protrusions 451 on the placement surface 12, then the switch cap 423 is loosened, the probe 42 is moved to the placement surface 12 under the elastic force of the compression spring, and finally the probe 42 moves to the locking position, in which the distance between the locking pressing strip 422 and the placement surface 12 is greater than the thickness of the glass sheet 2.

[0044] Then, the four positioning assemblies 4 are controlled to move by adjusting the assembly 3, so that the four positioning seats 41 are sealingly connected with the four corners of the glass sheet 2, then the probe 42 is rotated, so that the locking pressing strip 422 on the probe 42 is separated from the protrusion 451 and moves to the detection position close to the placement surface 12, at this time, the needle tip of the probe 42 abuts on the glass sheet 2, and the distance between the probe 42 and the placement surface 12 is equal to the thickness of the glass sheet 2 (of course, if the glass sheet 2 is not placed on the placement surface 12 at this time, the distance between the probe 42 and the placement surface 12 is less than the thickness of the glass sheet 2).

[0045] Further improvement is that the adjusting assembly 3 comprises a screw rod 31, a screw sleeve 32 and four connecting rods 33, the axis of the screw rod 31 coincides with the center line, the screw rod 31 rotates around the axis thereof on the adjusting surface 13, the screw sleeve 32 is threadedly connected with the screw rod 31, the four connecting rods 33 correspond to the four positioning assemblies 4 one by one, one end of each connecting rod 33 is hingedly connected with the screw sleeve 32, and the other end is connected with the corresponding positioning seat 41; the storage plate 1 is further provided with sliding openings 14 corresponding to the four connecting rods 33 one by one, the sliding openings 14 extend along the distribution direction of the positioning seats 41 and the center line, the sliding openings 14 are through holes, the positioning seat 41 is fixedly connected with a sliding plate 412 slidingly arranged in the sliding opening 14, and the sliding plate 412 is connected with the end of the corresponding connecting rod 33; one end of the sliding plate 412 away from the positioning seat 41 is fixedly connected with a connecting seat 413, and the storage plate 1 is attached between the connecting seat 413 and the positioning seat 41.

[0046] Specifically, the adjusting surface 13 is further fixedly connected with a center shaft 34, one side of the center shaft 34 away from the storage plate 1 is provided with a positioning convex cover 341, and the other end is provided with a fixed convex plate 342 fixedly connected with the adjusting surface 13, the screw rod 31 is coaxially arranged outside the center shaft 34, and the axis of the center shaft 34 coincides with the center line; one end of the screw rod 31 away from the storage plate 1 is provided with an assembly hole matched with the positioning convex cover 341, and the other end of the screw rod 31 is further fixedly connected with an adjusting rotary cover 311; the two ends of the screw rod 31 are attached with the positioning convex cover 341 and the fixed convex plate 342 respectively, so that the screw rod 31 can rotate around the axis thereof.

[0047] After the above structure is adopted, the screw rod 31 is conveniently rotated through the adjusting rotary cover 311, the screw rod 31 is stably rotated around the axis thereof through the center shaft 34, the positioning convex cover 341 and the fixed convex plate 342, the screw sleeve 32 is moved along the center line after the screw rod 31 is rotated, the connecting seat 413 is acted on through the connecting rod 33, the positioning seat 41 is moved along the length direction of the sliding opening 14 due to the fact that the connecting seat 413 and the positioning seat 41 are attached with the adjusting surface 13 and the storage surface 12 respectively and the sliding plate 412 slides inside the sliding opening 14, the distance adjustment between the four positioning assemblies 4 and the center line is realized, the distance between the four positioning assemblies 4 is further adjusted, the glass sheet 2 on the storage surface 12 is conveniently and accurately positioned, the distance is expanded, the glass sheet 2 is placed on the storage surface 12 and the detected glass sheet 2 is taken off from the storage surface 12, and the operation is more convenient.

[0048] The preferred embodiments of the present application are described above, and it should be pointed out that, for ordinary skilled in the art, some improvements and decorations can be made without departing from the technical principles of the present application, and these improvements and decorations should also be regarded as the protection scope of the present application.

Claims

1. A testing fixture for a transparent conductive film, characterized in that, include: A shelf (1) is provided with a detection connector (11) at one end. The shelf (1) has a shelf surface (12) and an adjustment surface (13) that are opposite to each other along its own thickness direction. The shelf surface (12) is used to lay a square glass plate (2) flat. The positioning mechanism includes an adjustment component (3) disposed on the adjustment surface (13) and four positioning components (4) arranged in a ring array on the placement surface (12). The center line of the four positioning components (4) arranged in a ring array is perpendicular to the placement surface (12) and the position is fixed. Each positioning component (4) includes a positioning seat (41), a probe (42) facing the placement surface (12) and close to the center line of the positioning seat (41), and an elastic element (43) that causes the probe (42) to move closer to the placement surface (12). The probe (42) is electrically connected to the detection connector (11). Among the four positioning components (4), the connecting lines between the tips of the probes (42) form a square with the center located at the center line. The adjustment component (3) is used to adjust the distance between the four positioning components (4) and the center line.

2. The testing fixture for the transparent conductive film according to claim 1, characterized in that: The positioning seat (41) is provided with a positioning through groove (411) on the side adjacent to the center line. The positioning through groove (411) extends along the thickness direction perpendicular to the positioning seat (41), and the two inner sidewalls of the positioning through groove (411) extend in mutually perpendicular directions.

3. The testing fixture for the transparent conductive film according to claim 2, characterized in that: An elastic buffer pad (44) is provided on the inner wall of the positioning groove (411).

4. The testing fixture for the transparent conductive film according to claim 2, characterized in that: A limiting member (45) is provided at one end of the positioning groove (411) away from the placement surface (12), and the distance between the limiting member (45) and the placement surface (12) is equal to the thickness of the glass sheet (2).

5. The testing fixture for the transparent conductive film according to claim 4, characterized in that: The detection seat has a horizontal arm (46) on the side facing away from the placement plate (1). The probe (42) slides through the horizontal arm (46) along its own length direction. The probe (42) has a convex plate (421) located between the horizontal arm (46) and the placement surface (12). The elastic element (43) is a compression spring with both ends abutting against the convex plate (421) and the horizontal arm (46).

6. The testing fixture for the transparent conductive film according to claim 5, characterized in that: The limiting member (45) has a protrusion (451) on the side opposite to the placement surface (12). The probe (42) is fixed with a locking strip (422). The probe (42) rotates around its own axis on the cross arm (46). The movement path of the probe (42) includes a detection position and a locking position. In the locking position, the side of the locking strip (422) adjacent to the placement surface (12) abuts against the protrusion (451). The distance between the probe (42) and the placement surface (12) is greater than the thickness of the glass plate (2). In the detection position, the locking strip (422) is separated from the protrusion (451). The distance between the probe (42) and the placement surface (12) is less than or equal to the thickness of the glass plate (2). The convex plate (421) is located on the side of the locking strip (422) opposite to the placement surface (12).

7. The testing fixture for the transparent conductive film according to claim 6, characterized in that: Two protrusions (451) are provided, located on both sides of the axis of the probe (42).

8. The testing fixture for the transparent conductive film according to claim 1, characterized in that: The adjustment assembly (3) includes a screw (31), a screw sleeve (32) and four connecting rods (33). The axis of the screw (31) coincides with the center line. The screw (31) rotates around its own axis on the adjustment surface (13). The screw sleeve (32) is threadedly connected to the screw (31). The four connecting rods (33) correspond one-to-one with the four positioning assemblies (4). One end of each connecting rod (33) is hinged to the screw sleeve (32), and the other end is connected to the corresponding positioning seat (41).

9. The testing fixture for the transparent conductive film according to claim 8, characterized in that: The shelf (1) is also provided with a sliding opening (14) corresponding to the four connecting rods (33). The sliding opening (14) extends along the distribution direction of the positioning seat (41) and the center line. The sliding opening (14) is a through hole. The positioning seat (41) is fixedly connected to a sliding plate (412) that slides through the sliding opening (14). The sliding plate (412) is connected to the end of the corresponding connecting rod (33).

10. The testing fixture for the transparent conductive film according to claim 9, characterized in that: The sliding plate (412) has a connecting seat (413) fixed at one end away from the positioning seat (41), and the shelf (1) is attached between the connecting seat (413) and the positioning seat (41).

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