CN216622504U - Measure tool of multiple size specification sample surface resistance - Google Patents

Abstract

The utility model discloses a jig for measuring surface resistance of samples with various dimensions, which comprises a base, wherein the base is provided with a group of copper blocks through a groove formed in the top of the base, the base is connected with a bedplate on the top of the base through a pin, a group of first square holes and second square holes are symmetrically formed in the bedplate, a first boss and a second boss on the top of each copper block are respectively positioned at the inner sides of the first square hole and the second square hole, each copper block is provided with a wire through plug wire holes in two sides of the copper block, and the top of the base is symmetrically provided with wire grooves; the sample surface resistance measuring tool of the utility model is composed of a base, a bedplate and a copper block, when measuring the surface resistance of samples with various sizes, only corresponding bosses are needed to be added on the copper block, and corresponding square holes are added on the bedplate, thus being suitable for measuring the surface resistance of samples with various sizes, thereby not needing to purchase a tool matched with the sample size, and reducing the expenditure for measuring the surface resistance of the sample.

Description

Measure tool of multiple size specification sample surface resistance

Technical Field

The application relates to a display module assembly test field especially relates to a measure multiple dimensions sample surface resistance's tool.

Background

The mobile phone display module is attached with a conductive copper foil for shielding the influence of IC electromagnetic signals on the mobile phone; the FPC steel sheet reinforcement upper paste of the mobile phone display module is adhered with a conductive double-sided paste for grounding and electrostatic conduction. The surface resistance is an important parameter of the conductive copper foil and the conductive double-sided adhesive, and the use performance of the conductive copper foil and the conductive double-sided adhesive is influenced. Different items have different requirements on the sample testing size of the surface resistance, some have low requirements on the surface resistance, and the measured sample has larger size and larger surface resistance; and some have high requirements on surface resistance, the measured sample size is smaller, and the requirements on surface resistance are smaller.

The Chinese patent of the utility model discloses a surface resistance test fixture and a test method, the surface resistance test fixture comprises an insulation positioning seat, two test electrodes which are fixed on the insulation positioning seat at intervals and are used for contacting with a conductive gasket, a pressing piece which is arranged on the insulation positioning seat and applies pressure to the insulation positioning seat and the test electrodes, and two contact connecting pieces which are respectively inserted or wound on the test electrodes and are externally connected with a low resistance tester through connecting wires; the two test electrodes are mutually insulated on the insulating positioning piece; the contact connector is in electrical contact with the test electrode.

However, the surface resistance test fixture is generally a sample with a large measurement size, and is not suitable for a sample with a small measurement size, so that a special fixture for measuring a sample with a small measurement size needs to be purchased, and the surface resistance test fixture is not practical.

Disclosure of Invention

The utility model aims to: the utility model provides a measure tool of multiple size specification sample surface resistance, solved the tool of measuring surface resistance on the market, generally be the great sample of measurement size, be unsuitable for the less sample of measurement size to this needs purchase the tool of the less sample of measurement size specially, thereby does not have the problem of practicality. The sample surface resistance measuring tool of the utility model is composed of a base, a bedplate and a copper block, when measuring the surface resistance of samples with various sizes, only corresponding bosses are needed to be added on the copper block, and corresponding square holes are added on the bedplate, thus being suitable for measuring the surface resistance of samples with various sizes, thereby not needing to purchase a tool matched with the sample size, and reducing the expenditure for measuring the surface resistance of the sample.

The technical scheme of the utility model is as follows: the utility model provides a measure multiple size specification sample surface resistance's tool, includes the base, the base is seted up some recesses through its top and is equipped with a set of copper billet, the base is connected through the pin with the platen at its top, a set of first square hole and second quad slit have been seted up to the inside symmetry of platen, and the first boss at copper billet top, second boss are located the inboard of first square hole and second quad slit respectively, the copper billet is equipped with the wire through the plug wire hole of its both sides, the wire casing has been seted up to the top symmetry of base, and the partly inboard that is located the wire casing in the wire outside, the opposite side of wire casing is equipped with fixed component.

As a preferred embodiment of the jig for measuring the surface resistance of the samples with various dimensions, the groove is communicated with the wire slot, and one end of the wire, which is close to the base, is connected to the inside of the wire inserting hole along the wire slot.

As a preferred embodiment of the jig for measuring the surface resistance of samples with various dimensions, the specification of the groove is adapted to the specification and the dimension of the copper block, and the copper block is located inside the groove.

As a preferred embodiment of the jig for measuring surface resistance of samples with various dimensions, the top of the base is provided with a first pin hole in a rectangular array, the inside of the platen is provided with a second pin hole in a rectangular array, and the position of the first pin hole corresponds to the position of the second pin hole.

As a preferred embodiment of the jig for measuring the surface resistance of the samples with various dimensions, the number of the pins is four, and the pins pass through the second pin holes and extend into the first pin holes.

As a preferred embodiment of the jig for measuring the surface resistance of the samples with various dimensions, provided by the utility model, a group of first square holes is symmetrically formed in the bedplate, a group of second square holes is symmetrically formed in the bedplate, and a first boss and a second boss are fixedly mounted at the top of the copper block; the top end of the first boss penetrates through the first square hole and extends to the outer side of the bedplate, and the top end of the second boss penetrates through the second square hole and extends to the outer side of the bedplate.

As a preferred embodiment of the jig for measuring the surface resistance of the samples with various dimensions, provided by the utility model, a threaded hole is formed in the top of the copper block and communicated with the wire inserting hole, a bolt is connected with the inner thread of the threaded hole in a threaded manner, and the bottom end of the bolt is attached to the outer wall of a wire in the wire inserting hole.

As a preferred embodiment of the jig for measuring surface resistance of samples with various dimensions, the fixing member comprises an arc-shaped fixing block, the opposite sides of the wire casing are both provided with built-in grooves, the arc-shaped fixing block is slidably arranged in the built-in grooves, the side wall of the inner cavity of the built-in grooves is connected with the back of the arc-shaped fixing block through a telescopic spring, and the opposite sides of the arc-shaped fixing block are both fixedly connected with an insulating jacket.

As a preferred embodiment of the jig for measuring the surface resistance of the samples with various dimensions, provided by the utility model, the bottom of the arc-shaped fixed block is fixedly connected with a sliding block, a sliding groove matched with the sliding block is formed in the bottom wall of the inner cavity of the built-in groove, and the sliding block is slidably arranged in the sliding groove.

As a preferable embodiment of the jig for measuring the surface resistance of the samples with various dimensions, the top end parts of the opposite sides of the arc-shaped fixed blocks are rounded.

Compared with the prior art, the utility model has the beneficial effects that:

1. the sample surface resistance measuring tool of the utility model is composed of a base, a bedplate and a copper block, when measuring the surface resistance of samples with various sizes, only corresponding bosses are needed to be added on the copper block, and corresponding square holes are added on the bedplate, thus being suitable for measuring the surface resistance of samples with various sizes, thereby not needing to purchase a tool matched with the sample size, and reducing the expenditure for measuring the surface resistance of the sample.

2. The wire fixing device comprises a wire fixing component, a wire fixing component and an arc-shaped fixing block, wherein the wire fixing component is arranged on the arc-shaped fixing block, the arc-shaped fixing block is arranged on the arc-shaped fixing block, and the arc-shaped fixing block is arranged on the arc-shaped fixing block.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a three-dimensional explosion structure of a jig for measuring surface resistance of samples with various dimensions according to the present invention;

FIG. 2 is a schematic perspective view of a fixture for measuring surface resistance of samples of various dimensions according to the present invention;

FIG. 3 is a schematic perspective view of a base according to the present invention;

FIG. 4 is a perspective view of a platen according to the present invention;

FIG. 5 is a schematic perspective view of a copper block according to the present invention;

FIG. 6 is a schematic plan view of the fixing member of the present invention;

wherein: 1. a base; 2. a platen; 3. a copper block; 4. a fixing member; 401. a built-in groove; 402. an arc-shaped fixed block; 403. an insulating jacket; 404. a tension spring; 405. a sliding groove; 406. a slider; 5. a groove; 6. a wire slot; 7. a first pin hole; 8. a first square hole; 9. a second square hole; 10. a second pin hole; 11. a first boss; 12. a second boss; 13. a threaded hole; 14. a pin; 15. a wire; 16. a wire insertion hole.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to specific conditions, and the conditions used in the experiments are not specifically mentioned.

Example 1

As shown in fig. 1 to 2, a jig for measuring surface resistance of samples with various dimensions comprises a base 1, a groove 5 is formed in the top of the base 1, a group of copper blocks 3 are arranged in the groove 5, the base 1 is connected with a bedplate 2 at the top of the base 1 through pins 14, a group of first square holes 8 and second square holes 9 are symmetrically formed in the bedplate 2, a first boss 11 and a second boss 12 at the top of each copper block 3 are respectively located on the inner sides of the first square holes 8 and the second square holes 9, a wire 15 is arranged on each copper block 3 through wire insertion holes 16 on two sides of each copper block 3, a wire slot 6 is symmetrically formed in the top of the base 1, a part of the outer side of each wire 15 is located on the inner side of the wire slot 6, and a fixing member 4 is arranged on the opposite side of each wire slot 6.

When measuring the copper foil attached to the mobile phone display module or the surface resistance of the conductive double-sided adhesive sample:

generally, the surface resistance of the copper foil or the conductive double-sided adhesive is required to be less than or equal to 0.2 omega within the size range of 25.4mm by 25.4 mm.

When a larger sample is measured according to the specification, a sample with the size of 40mm × 25.4mm is taken and attached to the first boss 11, the sample is properly pressed to be fully contacted with the first boss 11, the positive and negative clamps of the resistance tester are respectively used for clamping the corresponding leads 15, and a proper range is selected, so that the surface resistance of the sample can be measured (the distance between the two first bosses 11 is 25.4-26mm, the surface resistance range measured by the sample is 25.4mm × 25.4mm, and the testing requirements are met);

and if the surface resistance of the copper foil or the conductive double-sided adhesive is required to be measured according to the bridging resistance under special conditions, the contact area is measured to be 4mm by 4 mm.

When measuring according to the specification, taking a sample with the size of 14mm by 4mm, attaching the sample on the second boss 12, and properly pressing the sample to make the sample fully contact with the second boss 12; the corresponding wires 15 are respectively clamped by the positive clamp and the negative clamp of the resistance tester, and the surface resistance of the sample can be measured by selecting a proper measuring range (the size of the second lug boss 12 is 4mm by 4mm, which meets the test requirement).

If the surface resistance of samples with other dimensions needs to be measured, only corresponding bosses are needed to be added on a group of copper blocks 3, and corresponding square holes are needed to be added on the bedplate 2, so that multiple purposes of one jig can be realized, and the development quantity and the cost of the jig are saved.

Example 2

As an optimization of embodiment 1, as shown in fig. 3 to 5, in this embodiment, the groove 5 is communicated with the wire slot 6, and one end of the wire 15 close to the base 1 is connected inside the wire insertion hole 16 along the wire slot 6; the specification of the groove 5 is adapted to the specification and the size of the copper block 3, and the copper block 3 is positioned in the groove 5; the top of the base 1 is provided with first pin holes 7 in a rectangular array, the inside of the bedplate 2 is provided with second pin holes 10 in a rectangular array, and the positions of the first pin holes 7 correspond to the positions of the second pin holes 10; the number of the pins 14 is four, and the pins 14 pass through the second pin holes 10 and extend to the inside of the first pin holes 7.

In the embodiment, a group of first square holes 8 is symmetrically formed in the bedplate 2, a group of second square holes 9 is symmetrically formed in the bedplate 2, and a first boss 11 and a second boss 12 are fixedly mounted at the top of the copper block 3; the top end of the first boss 11 passes through the first square hole 8 and extends to the outer side of the bedplate 2, and the top end of the second boss 12 passes through the second square hole 9 and extends to the outer side of the bedplate 2; threaded hole 13 is seted up at the top of copper billet 3, and threaded hole 13 is linked together with plug wire hole 16, and threaded hole 13's inside threaded connection has the bolt, and the bottom portion of bolt and the outer wall of wire 15 in plug wire hole 16 laminate mutually.

In the utility model, the sample surface resistance measuring tool is composed of the base 1, the bedplate 2 and the copper block 3, and the surface resistance of samples with various sizes can be measured by only adding corresponding bosses on the copper block 3 and corresponding square holes on the bedplate 2, so that the tool can be suitable for measuring the surface resistance of samples with various sizes, and the tool matched with the sample size does not need to be purchased, thereby reducing the expenditure for measuring the surface resistance of the sample.

Example 3

As an optimization of embodiment 2, as shown in fig. 6, the fixing member 4 includes an arc-shaped fixing block 402, the opposite sides of the wire chase 6 are both provided with an internal groove 401, the arc-shaped fixing block 402 is slidably disposed inside the internal groove 401, the side wall of the inner cavity of the internal groove 401 is connected with the back of the arc-shaped fixing block 402 through a telescopic spring 404, and the opposite sides of the arc-shaped fixing block 402 are both fixedly connected with an insulating jacket 403; the bottom fixedly connected with sliding block 406 of arc fixed block 402 has seted up the sliding tray 405 that suits with sliding block 406 on the diapire of built-in groove 401 inner chamber, and sliding tray 406 slidable mounting is in the inside of sliding tray 405, and the top portion of arc fixed block 402 opposite side is the fillet.

In the utility model, the fixing component 4 is used for fixing the wire 15 in the wire slot 6, the arc-shaped fixing block 402 is supported by the telescopic spring 404 and is deviated by the sliding block 406 and the sliding groove 405, so that the problems that the service life and the test result of the wire 15 are influenced by the abrasion of the wire 15 caused by the bending of the wire 15 at the inlet of the wire slot 6 and the friction between the wire 15 and the right-angle side of the wire slot 6 can be avoided, the top end angle of the arc-shaped fixing block 402 is set to be a round angle, the friction between the wire 15 in the clamping process and the arc-shaped fixing block 402 can be avoided, and the insulating jacket 403 on the inner side of the arc-shaped fixing block 402 can protect the wire 15 so as to prevent the wire 15 from being seriously extruded.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the utility model and do not limit the scope of the utility model. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.

Claims (10)

1. The utility model provides a measure tool of multiple size specification sample surface resistance, includes base (1), its characterized in that: the base (1) is provided with a group of copper blocks (3) through a groove (5) formed in the top of the base, the base (1) is connected with a bedplate (2) at the top of the base through a pin (14), a group of first square holes (8) and second square holes (9) are symmetrically formed in the bedplate (2), a first boss (11) and a second boss (12) at the top of the copper blocks (3) are respectively located on the inner sides of the first square holes (8) and the second square holes (9), the copper blocks (3) are provided with wires (15) through wire inserting holes (16) in the two sides of the copper blocks, wire grooves (6) are symmetrically formed in the top of the base (1), one part of the outer sides of the wires (15) is located on the inner sides of the wire grooves (6), and fixing members (4) are arranged on the opposite sides of the wire grooves (6).

2. The jig for measuring the surface resistance of the samples with various dimensions as claimed in claim 1, wherein the groove (5) is communicated with the wire slot (6), and one end of the wire (15) close to the base (1) is connected to the inside of the wire insertion hole (16) along the wire slot (6).

3. The jig for measuring the surface resistance of samples with various dimensions and specifications as claimed in claim 1, wherein the dimensions of the groove (5) are adapted to the dimensions of the copper block (3), and the copper block (3) is positioned inside the groove (5).

4. The jig for measuring the surface resistance of the samples with various dimensions and specifications as claimed in claim 1, wherein the top of the base (1) is provided with a first pin hole (7) in a rectangular array, the inside of the bedplate (2) is provided with a second pin hole (10) in a rectangular array, and the position of the first pin hole (7) corresponds to the position of the second pin hole (10).

5. The jig for measuring the surface resistance of the samples with various dimensions as claimed in claim 1, wherein the number of the pins (14) is four, and the pins (14) pass through the second pin holes (10) and extend to the inside of the first pin holes (7).

6. The jig for measuring the surface resistance of the samples with various dimensions and specifications as claimed in claim 1, wherein a group of first square holes (8) is symmetrically formed in the bedplate (2), a group of second square holes (9) is symmetrically formed in the bedplate (2), and a first boss (11) and a second boss (12) are fixedly mounted at the top of the copper block (3); the top end of the first boss (11) penetrates through the first square hole (8) and extends to the outer side of the bedplate (2), and the top end of the second boss (12) penetrates through the second square hole (9) and extends to the outer side of the bedplate (2).

7. The jig for measuring the surface resistance of the samples with various dimensions and specifications as claimed in claim 1, wherein a threaded hole (13) is formed in the top of the copper block (3), the threaded hole (13) is communicated with the wire insertion hole (16), a bolt is connected to the inside of the threaded hole (13) in a threaded manner, and the bottom end of the bolt is attached to the outer wall of a wire (15) in the wire insertion hole (16).

8. The jig for measuring the surface resistance of the samples with various dimensions and specifications as claimed in claim 1, wherein the fixing member (4) comprises an arc-shaped fixing block (402), built-in grooves (401) are formed in opposite sides of the wire casing (6), the arc-shaped fixing block (402) is slidably arranged in the built-in grooves (401), the side wall of the inner cavity of the built-in grooves (401) is connected with the back of the arc-shaped fixing block (402) through a telescopic spring (404), and insulating jackets (403) are fixedly connected to opposite sides of the arc-shaped fixing block (402).

9. The jig for measuring the surface resistance of the samples with various dimensions and specifications as claimed in claim 8, wherein a sliding block (406) is fixedly connected to the bottom of the arc-shaped fixing block (402), a sliding groove (405) adapted to the sliding block (406) is formed in the bottom wall of the inner cavity of the built-in groove (401), and the sliding block (406) is slidably mounted inside the sliding groove (405).

10. The apparatus for measuring surface resistance of samples with various dimensions as claimed in claim 8, wherein the top end of the arc-shaped fixing block (402) at the opposite side is a rounded corner.

Images