CN220019734U - Jig for detecting performance of conductive foam - Google Patents

Abstract

The utility model discloses a jig for inspecting the performance of conductive foam, which comprises a base, wherein a fixing groove for fixing an adapter plate and a sliding mechanism are arranged on the base, the sliding mechanism comprises a pressure head, and the pressure head is used for pressing the conductive foam on the adapter plate. The base is provided with the fixed slot and the sliding mechanism for fixing the adapter plate, the sliding mechanism comprises supporting blocks which are respectively arranged on the left side and the right side of the base, a supporting rod is arranged in the middle of each supporting block, the pressing head is inserted in the first guide rod, the pressing head can move left and right on the supporting rod and can also be lifted or pressed down, the conductive foam performance of different positions on the adapter plate can be conveniently detected, the production yield is improved, the production efficiency of electronic products is improved, the manufacturing cost is reduced, the competitiveness of the products is improved, and the increasingly-growing quality requirements of enterprises are met.

Description

Jig for detecting performance of conductive foam

Technical Field

The utility model relates to the technical field of detection jigs, in particular to a jig for detecting the performance of conductive foam.

Background

The conductive foam is formed by wrapping conductive cloth on a flame-retardant sponge, and after a series of treatments, the conductive foam has good surface conductivity and can be easily fixed on a device to be shielded by using an adhesive tape. Shielding materials having different cross-sectional shapes, mounting methods, UL ratings and shielding effectiveness may be selected. Along with the progress of science and technology and the promotion of living standard, intelligent wearing equipment such as wrist-watch and bracelet etc. are more and more popular, integrated function on the product is also more and more comprehensive, such as ECG monitoring electrocardiogram or NFC payment etc. function, owing to the conductive foam has high price/performance ratio, so often be used for taking on the display module of ECG function, but dress class display screen compact structure, the conductive foam size that uses on the general display module is all less, and conductive foam does not have the inspection function as the auxiliary material pan feeding, so lead to often appearing at the production later stage because the ECG function inefficacy of bubble cotton feed function abnormality leads to whole module, influence production yield and cost, thereby influence the production of electronic product, manufacturing cost also can rise by a wide margin simultaneously, and then reduced the competitiveness of this product, can't satisfy the increasingly quality requirement of enterprise.

As disclosed in chinese patent (CN 112930109 a), the fixture comprises a base plate, a product fixing component, a detecting component and a control unit, wherein the product fixing component is used for fixing an electronic product to be tested; the detection component is used for detecting whether the foam on the electronic product to be tested is stuck or not; the control unit is used for controlling the detection assembly to detect the foam adhesion on the electronic product to be tested. By utilizing the utility model, the problem that the foam is leaked or the quantity of the adhered foam is too large when the foam is adhered to the electronic product can be solved.

However, when the present inventors embodied this device, the following drawbacks were found to exist: the impedance test fixture is also an impedance test fixture, but the detection movable range is the range of the rotating bracket, and the movable range is small, so that the detection is not facilitated.

Disclosure of Invention

Based on this, it is necessary to provide a jig for inspecting the performance of conductive foam, which can inspect the conduction performance of conductive foam rapidly, and test the conduction resistance of conductive foam monomers used on a display module in multiple directions by a simple testing jig, so as to avoid quality problems of foam materials from influencing the yield of Duan Shengchan after the module.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a jig for inspecting performance of conductive foam.

The jig for inspecting the performance of the conductive foam specifically comprises:

the base is provided with a fixing groove for fixing the adapter plate and a sliding mechanism, the sliding mechanism comprises a pressing head, and the pressing head is used for pressing the conductive foam on the adapter plate.

As a preferred implementation mode of the jig for testing the performance of the conductive foam, the sliding mechanism further comprises two supporting blocks arranged on the base, a first guide rod is connected between the two supporting blocks, and the pressure head is in sliding connection with the first guide rod.

As a preferred implementation mode of the jig for testing the performance of the conductive foam, the sliding mechanism comprises sliding grooves arranged on the left side and the right side of the base, sliding supporting blocks are slidably matched with the sliding grooves, a second guide rod is connected between the sliding supporting blocks, and the pressure head is slidably connected with the second guide rod.

As a preferred implementation mode of the jig for testing the performance of the conductive foam, the sliding support block is L-shaped, and the bottom end of the sliding support block is in sliding connection with the sliding groove.

As a preferred implementation mode of the jig for testing the performance of the conductive foam, the top surface of the adapter plate is provided with a plurality of copper exposure PADs, and the conductive foam is arranged on each copper exposure PAD.

As a preferred implementation mode of the jig for testing the performance of the conductive foam, the heights of the adapter plate and the exposed copper PAD are equal to the groove depth of the fixing groove.

As a preferred implementation mode of the jig for testing the performance of the conductive foam, a void-avoiding groove for pressing the conductive foam is formed in one surface, close to the fixing groove, of the pressure head, and the depth of the void-avoiding groove is 0.25mm.

As a preferred implementation mode of the jig for testing the performance of the conductive foam, the length, width and thickness of the conductive foam are 4mm by 1mm by 0.5mm.

As a preferred embodiment of the jig for testing the performance of the conductive foam, the compression rate of the conductive foam under the pressing of the pressing head is 50%.

As a preferred implementation mode of the jig for testing the performance of the conductive foam, the base is an bakelite insulating plate.

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

the fixture for inspecting the performance of the conductive foam is characterized in that the base is provided with the fixing groove and the sliding mechanism for fixing the adapter plate, the sliding mechanism comprises the supporting blocks which are respectively arranged at the left side and the right side of the base, the supporting rod is arranged in the middle of each supporting block, the pressing head is inserted in the first guide rod, the pressing head can move left and right on the supporting rod and can also be lifted or pressed down, the performance of the conductive foam at different positions on the adapter plate can be conveniently inspected, the production yield is improved, the production efficiency of electronic products is improved, the manufacturing cost is reduced, the competitiveness of the products is improved, and the increasing quality requirements of enterprises are met.

Drawings

In order to more clearly illustrate the solution of the present utility model, a brief description will be given below of the drawings required for the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a fixture (an upper adapter plate) for inspecting performance of conductive foam according to the first embodiment;

fig. 2 is a schematic structural diagram of a jig (without an interposer) for inspecting performance of conductive foam according to the first embodiment;

fig. 3 is a schematic structural diagram of a fixture (an upper adapter plate) for inspecting performance of conductive foam according to the second embodiment;

FIG. 4 is a side view of FIG. 1;

FIG. 5 is a schematic diagram showing the structures of copper-exposed PAD11 and conductive foam according to the present utility model;

the labels in the figures are illustrated below:

base 1, keysets 2, fixed slot 3, pressure head 4, electrically conductive bubble cotton 5, supporting shoe 6, first guide arm 7, spout 8, slip supporting shoe 9, second guide arm 10, dew copper PAD11, keep away empty groove 12.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

As to the background art, the impedance test fixture is also an impedance test fixture, but the detection movable range is the range of the rotating bracket, and the movable range is small, so that the detection is not facilitated.

In order to solve the technical problem, the utility model provides a jig for detecting the performance of conductive foam.

Specifically, referring to fig. 1-2, the jig for inspecting the performance of the conductive foam specifically includes:

the base 1, be provided with fixed slot 3 and the slide mechanism that is used for fixed keysets 2 on the base 1, slide mechanism is including pressure head 4, and pressure head 4 is used for pressing the conductive foam 5 on the keysets 2.

The utility model provides a jig for checking conductive foam performance, wherein a fixing groove 3 for fixing an adapter plate 2 and a sliding mechanism are arranged on a base 1, the sliding mechanism comprises a support block 6 which is respectively designed on the left side and the right side of the base 1, a support rod is arranged in the middle of the support block 6, a pressure head 4 which is inserted in a first guide rod 7 is inserted, the pressure head 4 can move left and right on the support rod, and can also be lifted or pressed down, so that the performance of conductive foam 5 at different positions on the adapter plate 2 can be conveniently detected.

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.

It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Example 1

Referring to fig. 1-2, a jig for inspecting performance of conductive foam includes a base 1, a fixing slot 3 for fixing an adapter plate 2 is provided on the base 1, and a sliding mechanism includes a pressing head 4, where the pressing head 4 is used to press conductive foam 5 on the adapter plate 2.

Specifically, the sliding mechanism further comprises two supporting blocks 6 arranged on the base 1, a first guide rod 7 is connected between the two supporting blocks 6, and the pressure head 4 is in sliding connection with the first guide rod 7.

Through the structural design, the fixing groove 3 is formed in the central area of the base 1, the fixing groove 3 is used for embedding the PCB test adapter plate 2, the supporting blocks 6 are respectively arranged on the left side and the right side of the edge of the base 1, a supporting rod is arranged in the middle of each supporting block 6, a conductive stainless steel pressure head 4 is arranged on the supporting rod in a sliding mode, the pressure head 4 is inserted on the supporting rod and can slide left and right on the supporting rod, the performance of conductive foam 5 on the adapter plate 2 can be conveniently detected, finally, a resistance rail of a digital multimeter is adopted, one end of the multimeter is contacted with the pressure head 4 made of stainless steel, the copper exposed PAD11 on the adapter plate 2 is respectively tested at the other end of the multimeter, the test on-off resistance of the conductive foam 5 is tested, in this embodiment, the sliding mechanism adopts a sliding detection device capable of moving left and right, and the position of the conductive foam 5 is in line with the contact distance of the pressure head 4, the conductive foam 5 on the adapter plate 2 can be conveniently lifted or pressed down, the performance of the conductive foam 5 on the adapter plate can be conveniently tested, the electronic product can be conveniently manufactured, the production cost is reduced, the production cost is increased, and the production cost is improved, and the production quality is improved.

Example 2

The jig for inspecting the performance of the conductive foam provided in embodiment 1 is further optimized, specifically, as shown in fig. 3, the sliding mechanism includes sliding grooves 8 disposed on the left and right sides of the base 1, the sliding grooves 8 are slidably fitted with sliding supporting blocks 9, a second guide rod 10 is connected between the sliding supporting blocks 9, and the pressing head 4 is slidably connected with the second guide rod 10.

Specifically, the sliding support block 9 has an "L" shape, and the bottom end thereof is slidably connected to the chute 8.

Through the above structural design, this embodiment is to make further improvement to embodiment 1, in slide mechanism, be provided with spout 8 in base 1 left and right sides respectively, be provided with slide supporting shoe 9 in spout 8, slide supporting shoe 9 is used for sliding from top to bottom in spout 8, slide supporting shoe 9's upper end corresponding one side is connected with second guide arm 10, second guide arm 10 is used for sliding fit has left and right gliding pressure head 4, through this slide mechanism, this design can let pressure head 4 slide from top to bottom, pressure head 4 can be in the arbitrary position on base 1, can detect the performance of arbitrary conductive foam 5 on adapter plate 2, make this adapter plate 2 that can detect the multiple types, not be limited to adapter plate 2 of a model, can maximize the utilization jig, do not need to customize for the adapter plate 2 of different models, save the material, work efficiency has been improved.

Example 3

Further optimizing the jig for inspecting the performance of the conductive foam provided in embodiment 1 or 2, as shown in fig. 5, the top surface of the interposer 2 is provided with a plurality of copper PADs 11, and the conductive foam 5 is disposed on each copper PAD 11.

Through the above structural design, the adapter plate 2 is a testing element of the fixture, the adapter plate 2 is provided with a plurality of copper-exposed PADs 11, the copper-exposed PADs 11 are arranged on one side of the adapter plate 2 in a group, in the embodiment, the copper-exposed PADs 11 are arranged on the upper side close to the adapter plate 2, and finally the conductive foam 5 is attached to the upper copper-exposed PADs 11 and the lower copper-exposed PADs 11 of the testing adapter plate 2.

Specifically, as shown in fig. 4, the heights of the interposer 2, the copper-exposed PAD11, and the groove depth equal to the fixing groove 3.

Specifically, the side of the pressure head 4 close to the fixed groove 3 is provided with a void-avoiding groove 12 for pressing the conductive foam 5, and the groove depth of the void-avoiding groove 12 is 0.25mm.

Specifically, the length, width and thickness dimensions of the conductive foam 5 are 4mm by 1mm by 0.5mm.

Specifically, the compression ratio of the conductive foam 5 under the pressing by the indenter 4 is 50%.

Through the structural design, the length, width and thickness of the conductive foam 5 are 4mm 1mm 0.5mm, the height of the adapter plate 2 and the exposed copper PAD11 and the depth equal to the depth of the fixing groove 3 are equal, so that the conductive foam 5 is just higher than the groove surface of the fixing groove 3 by 0.5mm, when the groove depth is 0.25mm in the area where the pressure head 4 contacts the conductive foam 5, the pressure head 4 downwards presses the thickness of the conductive foam 5 by about 50%, the 50% compression rate of the conductive foam on the analog module is achieved, finally, the resistor grade of the digital multimeter is adopted, one end of the multimeter is contacted with the stainless steel pressure head 4, and the other end of the multimeter is respectively tested for testing through holes on the adapter plate 2, so that the on-resistance of the upper end and the lower ends of the conductive foam 5 is tested, the performance of the conductive foam 5 at different positions on the adapter plate 2 is conveniently detected, the production yield is improved, the production efficiency of electronic products is improved, the manufacturing cost is reduced, the competition of the products is improved, and the increasing quality requirements of enterprises are met.

Specifically, the base 1 is a bakelite insulating board.

Through the structural design, the bakelite insulating plate has good insulativity, and elements on the adapter plate 2 can be protected from electrostatic breakdown.

The application process of the jig for testing the performance of the conductive foam provided by the utility model is as follows:

the adapter plate 2 is embedded in the fixed groove 3, the pressure head 4 is controlled to slide left and right on the first guide rod 7, the conductive foam 5 on the adapter plate 2 is correspondingly pressed down and abutted, the pressure head 4 is pressed down to compress the thickness of the conductive foam 5 by about 50%, a resistance gear of a digital multimeter is adopted, one end of the multimeter is contacted with the stainless steel pressure head 4, the other end of the multimeter is respectively used for testing through holes on the adapter plate 2, the test and inspection of the on-resistance of the upper end and the lower end of the conductive foam 5 are realized, the performance of the conductive foam 5 at different positions on the adapter plate 2 is conveniently detected, the production yield is improved, the production efficiency of electronic products is improved, the manufacturing cost is reduced, the competitiveness of the products is improved, and the increasingly growing quality requirements of enterprises are met.

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 jig for inspecting the performance of the conductive foam is characterized by comprising a base (1), wherein a fixing groove (3) for fixing the adapter plate (2) and a sliding mechanism are arranged on the base (1), the sliding mechanism comprises a pressing head (4), and the pressing head (4) is used for pressing the conductive foam (5) on the adapter plate (2).

2. The jig for inspecting performance of conductive foam according to claim 1, wherein the sliding mechanism further comprises two supporting blocks (6) arranged on the base (1), a first guide rod (7) is connected between the two supporting blocks (6), and the pressing head (4) is slidably connected with the first guide rod (7).

3. The jig for inspecting performance of conductive foam according to claim 1, wherein the sliding mechanism comprises sliding grooves (8) arranged on the left side and the right side of the base (1), the sliding grooves (8) are both slidably matched with sliding support blocks (9), a second guide rod (10) is connected between the sliding support blocks (9), and the pressing head (4) is slidably connected with the second guide rod (10).

4. A jig for inspecting conductive foam according to claim 3, wherein the sliding support block (9) is shaped like an "L", and the bottom end thereof is slidably connected to the chute (8).

5. The jig for inspecting properties of conductive foam according to any one of claims 1 to 4, wherein a plurality of copper exposed PADs (11) are provided on the top surface of the interposer (2), and the conductive foam (5) is provided on each copper exposed PAD (11).

6. The jig for inspecting conductive foam performance according to claim 5, wherein the height of the adapter plate (2), the copper-exposed PAD (11) and the groove depth equal to the fixing groove (3) are equal.

7. The jig for inspecting properties of conductive foam according to claim 6, wherein a void-avoiding groove (12) for pressing the conductive foam (5) is provided on one surface of the pressing head (4) close to the fixing groove (3), and the depth of the void-avoiding groove (12) is 0.25mm.

8. The jig for inspecting properties of conductive foam according to claim 7, wherein the length, width and thickness dimensions of the conductive foam (5) are 4mm x 1mm x 0.5mm.

9. The jig for inspecting properties of conductive foam according to claim 8, wherein the compression ratio of the conductive foam (5) under the pressing by the pressing head (4) is 50%.

10. The jig for inspecting properties of conductive foam according to claim 1, wherein the base (1) is a bakelite insulation board.