CN219122259U - Vertical resistance test fixture - Google Patents
Vertical resistance test fixture Download PDFInfo
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- CN219122259U CN219122259U CN202223411604.4U CN202223411604U CN219122259U CN 219122259 U CN219122259 U CN 219122259U CN 202223411604 U CN202223411604 U CN 202223411604U CN 219122259 U CN219122259 U CN 219122259U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model discloses a vertical resistance test fixture, which comprises an upper copper block and a lower copper block, wherein working areas are arranged on the surfaces of the opposite sides of the upper copper block and the lower copper block, the working areas are used for accommodating conductive double-sided adhesive tapes, and insulating areas are arranged on the outer sides of the working areas; the vertical resistance test jig provided by the utility model can prevent the upper copper block from conducting electricity in other areas except the working area when the upper copper block and the lower copper block are contacted through the insulating area, and in particular, once the upper copper block and the lower copper block are required to be contacted, the conducting double-sided adhesive is firstly adhered to the working area, then the upper copper block and the lower copper block are closed, and at the moment, the insulating area can isolate the contact surface of the upper copper block and the lower copper block, so that the upper copper block and the lower copper block cannot be in contact short circuit, and the problem of resistance data distortion is solved.
Description
Technical Field
The utility model relates to the technical field of resistance testing devices, in particular to a vertical resistance testing jig.
Background
The FPC of the mobile phone display module is usually connected to the backlight iron frame in a copper exposure way by sticking a conductive double-sided adhesive mode, so as to realize grounding. The vertical resistance of the conductive double-sided adhesive is an important index for measuring the performance of the conductive double-sided adhesive. The method for measuring the resistivity of the conductor is to force current to flow through the sample through one pair of leads, and measure the voltage drop of the current through the other pair of leads to determine the resistance of the sample with known geometric dimensions, and the fixture plays a role of fixing the conductor in the measuring process.
For example, patent document with application number of cn201922139299.X discloses a vertical resistance test fixture, which is provided with a lower fixture and an upper fixture, so that an operator can directly place a test conductor on a lower test carrier or an upper test carrier when the conductor resistance measurement is required, then the upper fixture slides along a guide post to clamp the test conductor in cooperation with the lower test carrier, then the resistance test can be performed, the whole operation process is simple, and the phenomenon of clamping caused by misoperation can be avoided.
However, the above operation has limitations when the test conductor is short-circuited, because the jig, after the test of the conductive double-sided adhesive, makes it difficult to separate the upper and lower copper sides due to the strong adhesion of the conductive double-sided adhesive (refer to fig. 1, the test conductor in the prior art includes an upper copper block (1) and a lower copper block (2), the conductive double-sided adhesive is stuck between the upper copper block (1) and the lower copper block (2), after the test is finished, the upper copper block (1) and the lower copper block (2) need to be separated, but the conductive double-sided adhesive is strong, but cannot be separated quickly), because there is no good adhesion point, that is, the upper and lower copper blocks need to be firmly fixed to solve the problem, but after the positions of the upper and lower copper blocks are fixed, when the conductive double-sided adhesive is stuck, sometimes the phenomenon that the conductive double-sided adhesive is pressed down due to the fact that the conductive double-sided adhesive is too much pressed (the error of the test method in general) occurs, once the upper and lower copper blocks are close to each other, the upper and lower copper blocks are easy to contact with each other, and the upper and lower copper blocks are easy to form a distortion.
Disclosure of Invention
Aiming at the technical defects, the utility model aims to provide a vertical resistance test fixture to solve the problems that the surface contact phenomenon of an upper copper block and a lower copper block easily occurs once the upper copper block and the lower copper block are close to each other, the contact short circuit of the upper copper surface and the lower copper surface is obtained, and the resistance data distortion is caused due to the error of a test method in the background art.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a vertical resistance test fixture, which comprises an upper copper block and a lower copper block, wherein working areas are arranged on the surfaces of the opposite sides of the upper copper block and the lower copper block, the working areas are used for accommodating conductive double-sided adhesive tapes, and insulating areas are arranged on the outer sides of the working areas;
the insulating region can isolate the contact surface of the upper copper block and the lower copper block when the upper copper block and the lower copper block are close to each other.
Preferably, insulating glue is sprayed in the insulating area, and the insulating area is arranged around the working area.
Preferably, the upper copper block comprises an upper main body, the working area is arranged in a central area of one side surface of the upper main body, which is close to the lower copper block, a wire insertion hole for accommodating a conductive wire is formed in the side wall of the upper main body, a locking piece is detachably connected to the surface edge of the upper main body at a position corresponding to the wire insertion hole, and the locking piece is used for fixing the conductive wire.
Preferably, the surface of the upper main body is provided with a plurality of handle holes, one handle hole is communicated with the plug wire hole, the four corner positions of the upper main body are provided with protruding blocks, and all the protruding blocks are symmetrically arranged in pairs relative to the central area of the upper main body.
Preferably, the lower copper block comprises a lower main body, a boss is arranged on one side surface of the lower main body, which is close to the upper copper block, the working area is arranged in a central area of one side surface of the boss, which is close to the upper copper block, a wire insertion hole is also formed in the side wall of the lower main body, and a locking piece is also connected to the surface edge of the lower main body.
Preferably, the surface of the lower main body is provided with a plurality of mounting holes, and all the mounting holes are respectively and symmetrically arranged about the central area of the lower main body.
Preferably, the area of the working region is not smaller than the area of the insulating region.
Preferably, a plurality of guide posts are arranged on the surface of the boss, and guide grooves are formed in positions, corresponding to the guide posts, of the surface of the upper copper block.
Preferably, all the guide posts are disposed in the insulating region.
Preferably, the guide post is obliquely arranged towards the side close to or far from the working area.
The utility model has the beneficial effects that: according to the vertical resistance test jig provided by the utility model, when the upper copper block and the lower copper block are contacted through the insulating region, other regions except the working region cannot conduct electricity, and when the vertical resistance test jig is implemented, once the upper copper block and the lower copper block are required to be contacted, the conducting double-sided adhesive tape is firstly stuck on the working region, and then the upper copper block and the lower copper block are closed, at the moment, the contact surface of the upper copper block and the lower copper block can be isolated through the insulating region, so that the upper copper block and the lower copper block cannot generate contact short circuit, and the problem of resistance data distortion is solved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic diagram of the structure of the present utility model when the upper copper block is separated from the lower copper block.
Fig. 3 is a schematic view of the working area structure on the upper copper block of the present utility model.
Fig. 4 is a schematic view of the structure of the lower copper block in the present utility model.
Fig. 5 is a schematic overall structure of a second embodiment of the present utility model.
Reference numerals illustrate: 1-feeding copper blocks; 2-lower copper block; 3-working area; 4-insulating regions;
11-an upper body; 12-plug wire holes; 13-locking member; 111-handle holes; 112-bump; 21-a lower body; 22-boss; 211-mounting holes; 221-a guide groove; 222-pilot column.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As described in the background art, due to the error of the testing technique, the phenomenon of contact between the upper and lower copper blocks easily occurs once the upper and lower copper blocks are close to each other, so that the upper and lower copper surfaces are in contact short circuit, and the problem of resistance data distortion is caused.
In order to solve the technical problem, the utility model provides a vertical resistance test fixture.
Specifically, referring to fig. 1-5, the vertical resistance test fixture specifically includes: the copper block comprises an upper copper block 1 and a lower copper block 2, wherein working areas 3 are formed on the surfaces of one opposite side of the upper copper block 1 and the lower copper block 2, the working areas 3 are used for accommodating conductive double-sided adhesive tapes, and insulating areas 4 are formed on the outer sides of the working areas 3;
the insulating region 4 can isolate the contact surface of the upper copper block 1 and the lower copper block 2 when the upper copper block 1 and the lower copper block 2 are close to each other.
According to the vertical resistance test jig provided by the utility model, when the upper copper block 1 and the lower copper block 2 are contacted through the insulating region 4, other regions except the working region 3 cannot conduct electricity, and when the vertical resistance test jig is specifically implemented, once the upper copper block 1 and the lower copper block 2 are required to be contacted, conducting double sides are firstly adhered to the working region 3, then the upper copper block 1 and the lower copper block 2 are closed, at the moment, the contact surface (the contact surface mainly refers to the contact surface except the working region 3) of the upper copper block 1 and the lower copper block 2 can be isolated through the insulating region 4, so that the problem of resistance data distortion is solved, and the upper copper block 1 and the lower copper block 2 cannot be in contact short circuit.
In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
Example 1
Referring to fig. 1-5, a vertical resistance test fixture comprises an upper copper block 1 and a lower copper block 2, wherein working areas 3 are respectively arranged on the surfaces of opposite sides of the upper copper block 1 and the lower copper block 2, the working areas 3 are used for accommodating conductive double-sided adhesives, and insulating areas 4 are arranged on the outer sides of the working areas 3; the insulating region 4 can isolate the contact surface of the upper copper block 1 and the lower copper block 2 when the upper copper block 1 and the lower copper block 2 are close to each other.
According to the vertical resistance test jig provided by the utility model, when the upper copper block 1 and the lower copper block 2 are contacted through the insulating region 4, other regions except the working region 3 cannot conduct electricity, and when the vertical resistance test jig is specifically implemented, once the upper copper block 1 and the lower copper block 2 are required to be contacted, conducting double sides are firstly adhered to the working region 3, then the upper copper block 1 and the lower copper block 2 are closed, at the moment, the contact surface (the contact surface mainly refers to the contact surface except the working region 3) of the upper copper block 1 and the lower copper block 2 can be isolated through the insulating region 4, so that the problem of resistance data distortion is solved, and the upper copper block 1 and the lower copper block 2 cannot be in contact short circuit.
The insulation area 4 in embodiment 1 is further optimized, and the optimized insulation area 4 is that insulation glue is sprayed in the insulation area 4, and the insulation area 4 is arranged around the working area 3.
Since the insulating region 4 is formed in a plurality of ways, such as attaching an insulating tape or attaching a plastic block (such ways are prone to the problem of tape falling or the thickness of the plastic block is increased to increase the thickness required for conductive double-sided adhesion), a preferable way is provided here, and the insulating region is formed by spraying an insulating adhesive to a thickness of about 10um.
At the same time, the insulating area 4 surrounds the working area 3, so that the contact surfaces except the working area 3 are insulated when the upper copper block 1 is attached to the lower copper block 2.
For the further optimization of the upper copper block 1 in embodiment 1, the optimized upper copper block 1 comprises an upper main body 11, a working area 3 is arranged in a central area of one side surface of the upper main body 11, which is close to the lower copper block 2, a wire insertion hole 12 for accommodating a conductive wire is formed in the side wall of the upper main body 11, a locking piece 13 is detachably connected to the surface edge of the upper main body 11 at a position corresponding to the wire insertion hole 12, and the locking piece 13 is used for fixing the conductive wire.
The working area 3 is arranged in the central area of the upper main body 11, which is close to one side surface of the lower copper block 2, so that the upper main body 11 can be fully matched with the working area 3 on the lower copper block 2 after being stuck with the conductive double-sided adhesive tape, and the working area 3 cannot be dislocated (the conductive double-sided adhesive tape can be stuck on the working area 3 of the upper main body 11 and also can be stuck on the working area 3 of the lower copper block 2, so that the position of the working area 3 on the upper main body 11 is arranged in the central area of the upper main body 11, the force application is more balanced when the upper copper block 1 and the lower copper block 2 are separated later conveniently, and the force application direction is not inclined when the separation is caused because the conductive double-sided adhesive tape is too close to the edge.
In this embodiment, the locking member 13 may be a locking bolt.
The upper copper block 1 arranged in this way is simple and convenient to fix the conductive wire only by the locking piece 13, and compared with the conductive clip in the prior art, the phenomenon that the conductive wire falls off suddenly can not occur during fixing.
In order to make the separation of the upper copper block 1 and the lower copper block 2 after the completion of the test more convenient, the structure of the upper main body 11 is further optimized, the optimized upper main body 11 has a structure that the surface of the upper main body 11 is provided with a plurality of handle holes 111, one of the handle holes 111 is communicated with the wire insertion hole 12, the four corner positions of the upper main body 11 are provided with the protruding blocks 112, and all the protruding blocks 112 are respectively and symmetrically arranged in pairs relative to the central area of the upper main body 11.
After the upper copper block 1 and the lower copper block 2 are attached, the conductive double sides between the upper copper block 1 and the lower copper block 2 are adhered, so that the upper copper block 1 and the lower copper block 2 are more laborious in detachment, the handle hole 111 is formed, an operator can manually insert the handle hole 111 to hold, and the upper copper block 1 and the lower copper block 2 can be rapidly separated through the operation.
In this embodiment, the specific size of the working area 3 may be 25.4mm by 25.4mm.
The upper copper block 1 is used in the following manner in combination with the figures 1-5: the copper wire of the direct current power impedance tester is inserted into the plug wire hole 12 on the side wall of the upper main body 11, and then the locking bolt (namely the locking piece 13) is rotated, so that the copper wire is closely contacted with the upper main body 11 and is not separated, and then the conductive double-sided adhesive test operation can be performed.
After the conductive double-sided adhesive is tested, the upper copper block 1 and the lower copper block 2 are required to be separated for the next sample test, and at this time, the handle hole 111 can be used as an acting point, so that a tester can conveniently separate the upper copper block from the lower copper block.
For the lower copper block 2 in embodiment 1, the optimized lower copper block 2 comprises a lower main body 21, a boss 22 is arranged on the surface of the lower main body 21, which is close to the upper copper block 1, a working area 3 is arranged in the central area of the boss 22, which is close to the surface of the upper copper block 1, a wire insertion hole 12 is also formed in the side wall of the lower main body 21, and a locking piece 13 is also connected to the surface edge of the lower main body 21.
The lower copper block 2 thus arranged can reduce the contact with the upper body 11 by means of the boss 22, further reducing the risk of short circuits.
In order to prevent the lower body 21 from shaking during the separation of the upper copper block 1 and the lower copper block 2, it is preferable that the surface of the lower body 21 is provided with a plurality of mounting holes 211, and all the mounting holes 211 are symmetrically arranged about the central area of the lower body 21.
The lower body 21 needs to be fixed before the test, that is, a fixing member such as a bolt or a pin is inserted into the mounting hole 211 so that the lower body 21 is fixed to the table.
As shown in connection with fig. 1-5, the lower copper block 2 is used in the following manner: the copper wire of the direct current power impedance tester is inserted into the plug wire hole 12 on the side wall of the lower main body 21, and then the locking bolt (namely the locking piece 13) is rotated, so that the copper wire is closely contacted with the lower main body 21 and is not separated, and then the conductive double-sided adhesive test operation can be performed.
After the conductive double-sided adhesive is tested, the upper copper block 1 and the lower copper block 2 are required to be separated for the next sample test, and at this time, the lower main body 21 is fixed on the workbench, so that the lower main body 21 cannot move along with the upper main body 11, and the upper copper block 1 and the lower copper block 2 can be separated more fully.
Further, the area of the working region 3 is not smaller than the area of the insulating region 4.
The arrangement is to prevent the problem that the area of the working area 3 is small, so that the conductive double-sided adhesive bonding in the working area 3 is insufficient due to the limitation of the insulating area 4 when the upper copper block 1 and the lower copper block 2 are bonded, and the authenticity of test data is affected.
Example 2
The upper copper block 1 and the lower copper block 2 are further optimized on the basis of embodiment 1, and the optimized upper copper block 1 and lower copper block 2 are specifically provided with a plurality of guide posts 222 on the surface of the boss 22, and guide grooves 221 are formed on the surface of the upper copper block 1 at positions corresponding to the guide posts 222.
Since embodiment 1 is based on manual operation, once the force is applied unevenly, the risk of crushing the insulating glue is easy to occur, so that when the upper body 11 moves towards the boss 22, the guiding post 222 is inserted into the guiding groove 221, so that the plugging position of the upper body 11 is more accurate, and then the phenomenon that one side of the upper body 11 is inclined when the upper body is separated does not occur.
All the guide posts 222 are disposed in the insulating region 4. This is so arranged that the guide posts 222 do not affect the position of the conductive double-sided adhesive in the working area 3.
Example 3
Further optimized for the guide post 222 on the basis of embodiment 2, the guide post 222 is disposed obliquely toward the side close to or away from the working area 3.
Because the upper copper block 1 and the lower copper block 2 are easy to shake during manual operation, and the insulating glue is easy to scratch once the upper copper block 1 shakes, if the guide post 222 is made longer, the conductive double-sided adhesive in the working area 3 is easy to influence during lamination, so the guide post 222 is obliquely arranged towards one side close to or far away from the working area 3, the upper copper block 1 and the lower copper block 2 can not shake left and right when being close to each other, and meanwhile, the guide post 222 is made shorter.
When in use, the lower main body 21 is fixed firstly, namely, the fixing parts such as bolts or pins are inserted into the mounting holes 211, so that the lower main body 21 is fixed on a workbench, then the conductive double-sided adhesive is stuck in the working area 3 on the boss 22, and then the upper copper block 1 is pressed, so that the working area 3 on the upper copper block 1 is in adhesive contact with the conductive double-sided adhesive. And then the anode copper wire and the cathode copper wire of the direct current power supply resistance tester are respectively inserted into the plug wire holes 12 on the upper copper block 1 and the lower copper block 2, and the locking bolts are tightened. Then a 1KG weight is placed on the upper surface of the upper copper block 1 to activate the conductive double-sided adhesive force. At this point, the resistance reading can be seen on the DC power resistance tester.
After the test is finished, the copper wire and the locking bolt are disassembled, the handle hole 111 on the upper copper block 1 is grasped by hands and used as an acting point, so that a tester can conveniently separate the upper copper block from the lower copper block by force, the upper copper block and the lower copper block can be easily separated, and the next test sample can be replaced.
Compared with the prior art, the vertical resistance test fixture provided by the utility model can prevent the upper copper block 1 from conducting electricity in other areas except the working area 3 when the upper copper block 1 and the lower copper block 2 are contacted through the insulating area 4, and in the specific implementation, once the upper copper block 1 and the lower copper block 2 are required to be contacted, the conducting double-sided adhesion is firstly carried out on the working area 3, and then the upper copper block 1 and the lower copper block 2 are closed, at this time, the insulating area 4 can isolate the contact surface of the upper copper block 1 and the lower copper block 2 (the contact surface mainly refers to the contact surface except the working area 3), so that the upper copper block 1 and the lower copper block 2 cannot generate contact short circuit, and the problem of resistance data distortion is caused.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
It is apparent that the above-described embodiments are only some embodiments of the present utility model, but not all embodiments, and the preferred embodiments of the present utility model are shown in the drawings, which do not limit the scope of the patent claims. This utility model may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the utility model are directly or indirectly applied to other related technical fields, and are also within the scope of the utility model.
Claims (10)
1. The vertical resistance test jig is characterized by comprising an upper copper block (1) and a lower copper block (2), wherein working areas (3) are formed in the surfaces of one opposite sides of the upper copper block (1) and the lower copper block (2), the working areas (3) are used for accommodating conductive double-sided adhesives, and insulating areas (4) are formed in the outer sides of the working areas (3);
the insulating area (4) can isolate the contact surface of the upper copper block (1) and the lower copper block (2) when the upper copper block (1) and the lower copper block (2) are close to each other.
2. The vertical resistance test fixture according to claim 1, wherein insulating glue is sprayed in the insulating area (4), and the insulating area (4) is arranged around the working area (3).
3. The vertical resistance test fixture according to claim 1 or 2, wherein the upper copper block (1) comprises an upper main body (11), the working area (3) is arranged in a central area of one side surface of the upper main body (11) close to the lower copper block (2), a wire insertion hole (12) for accommodating a conductive wire is formed in the side wall of the upper main body (11), and a locking piece (13) is detachably connected to the surface edge of the upper main body (11) at a position corresponding to the wire insertion hole (12), and the locking piece (13) is used for fixing the conductive wire.
4. A vertical resistance testing jig according to claim 3, wherein the surface of the upper body (11) is provided with a plurality of handle holes (111), one of the handle holes (111) is communicated with the wire insertion hole (12), the four corner positions of the upper body (11) are provided with protruding blocks (112), and all the protruding blocks (112) are symmetrically arranged in pairs with respect to the central area of the upper body (11).
5. A vertical resistance test fixture as claimed in claim 1 or 4, wherein the lower copper block (2) comprises a lower main body (21), a boss (22) is arranged on one side surface of the lower main body (21) close to the upper copper block (1), the working area (3) is arranged in a central area of the boss (22) close to one side surface of the upper copper block (1), a wire insertion hole (12) is also formed in the side wall of the lower main body (21), and a locking piece (13) is also connected to the surface edge of the lower main body (21).
6. The vertical resistance test fixture according to claim 5, wherein the surface of the lower body (21) is provided with a plurality of mounting holes (211), and all the mounting holes (211) are symmetrically arranged about the central area of the lower body (21) in pairs.
7. A vertical resistance test fixture according to claim 1, characterized in that the area of the working area (3) is not smaller than the area of the insulating area (4).
8. The vertical resistance test fixture according to claim 5, wherein a plurality of guide posts (222) are provided on the surface of the boss (22), and guide grooves (221) are provided on the surface of the upper copper block (1) at positions corresponding to the guide posts (222).
9. The vertical resistance testing jig according to claim 8, wherein all the guide posts (222) are disposed in the insulating region (4).
10. A vertical resistance testing jig according to claim 9, wherein the guide posts (222) are inclined toward a side close to or far from the working area (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223411604.4U CN219122259U (en) | 2022-12-19 | 2022-12-19 | Vertical resistance test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223411604.4U CN219122259U (en) | 2022-12-19 | 2022-12-19 | Vertical resistance test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219122259U true CN219122259U (en) | 2023-06-02 |
Family
ID=86534479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223411604.4U Active CN219122259U (en) | 2022-12-19 | 2022-12-19 | Vertical resistance test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219122259U (en) |
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2022
- 2022-12-19 CN CN202223411604.4U patent/CN219122259U/en active Active
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