TWM469489U - Testing assembly and electrical testing device - Google Patents

Description

Test component and its electrical detecting device

The present invention relates to an electrical testing technique, and more particularly to a test component for a flexible circuit board and an electrical detecting device thereof.

Flexible Printed Circuit (FPC), also known as soft board, is a process of etching a flexible copper foil substrate, and finally leaving the required lines as a medium for electronic product signal transmission. In general, FPCs are often mounted on electronic components, such as integrated circuit chips, resistors, capacitors, connectors, etc., so that electronic products can perform their intended functions; due to FPC's flexibility and three-dimensional wiring, etc. Under the trend of technology-based electronic products that emphasize lightness, shortness, and flexibility, their development will make the related electronics industry more vigorous.

In order to ensure the yield of FPC products, after the FPC is made, it is usually subjected to electrical testing to screen out defective products and find defects in the process. At present, most of the FPC electrical test equipment on the market is a single-chip manual test machine. In operation, the FPC to be tested is manually placed into the test equipment one by one and the alignment is completed, and then the FPC to be tested is manually determined. After electrically connecting with the test system of the test tool, the test system determines whether there is an open circuit or a short circuit on the line on the FPC to be tested, so as to screen out the defective product.

However, in the case where the aforementioned test tool can only be manually tested for a single piece of FPC at a time, the production cost is high due to the low work efficiency; and the manual connection of the FPC to the test system is electrically connected. Under the circumstance, it is easy for the tester to exert different degrees of wear on the electrical connection end (such as the probe) of the test system, or loose contact failure, which indirectly affects the judgment result of the electrical test. Contrary to the doubts in the test.

Moreover, the manual testing method described above is to press the bonding pad on the FPC through the probe head to achieve electrical connection, so that the alignment adjustment needs to be performed multiple times in the process, so that the probe is damaged by the partial line. Open circuit or short circuit; in addition, for various circuit designs with different wire gaps, the probes in the probe head also need to be adjusted accordingly. It can be understood that this connection mechanism is applicable to FPCs of various different line design specifications. Poor detection convenience.

Therefore, the creator has the necessity of improving the electrical test equipment for the use of soft boards, and has been actively researching and improving the electrical test fixtures with his years of experience in creative design and professional manufacturing in related fields. Under the careful consideration of the conditions of all parties, this work was finally developed.

In view of the shortcomings of the prior art, the present invention proposes a test component and an electrical detecting device thereof, thereby improving the convenience, efficiency and accuracy of the electrical test of the flexible printed circuit board.

In order to achieve the above objectives, the present invention adopts the following technical means: a test component comprising a test cable and a conductive rubber connector. The detection cable includes a plurality of first conductors arranged at intervals and an insulating layer covering the first conductors, wherein opposite ends of the first conductors are exposed to the insulating layer; the conductive rubber connector and The test cable is stacked on the other side. The conductive rubber connector includes a plurality of second conductors arranged at intervals and a soft rubber layer covering the second conductors. The opposite ends of the second conductors are exposed to the soft rubber. The layers are connected to the first conductors.

According to the above test assembly, the present invention further provides an electrical detection device comprising a base, a test assembly and a lifting mechanism. The base has a test platform for an object to be tested; the test component is vertically disposed above the test platform and includes a detection cable and a conductive rubber connection connected to the detection cable The lifting mechanism is disposed on the base to control the test component to be lifted and lowered relative to the test platform, and is in contact with the object to be tested.

This creation has at least the following beneficial effects: the test component of this creation is used for inspection. The measuring cable is matched with the conductive rubber connector, which can be directly pressed onto the object to be tested, and matched with various wire lines having different wire gaps without damaging the wire of the object to be tested (such as a flexible printed circuit board), greatly improving The efficiency of electrical testing.

The above description of the present invention and the following description of the embodiments are provided to illustrate and explain the principles of the present invention, and to provide further explanation of the scope of the patent application of the present invention.

1‧‧‧Electrical testing device

10‧‧‧ Pedestal

11‧‧‧Test platform

111‧‧‧ Positioning structure

12‧‧‧Support frame

13‧‧‧ pivot structure

20‧‧‧Test components

21‧‧‧Detection cable

211‧‧‧First conductor

212‧‧‧Insulation

22‧‧‧Electrical rubber connector

221‧‧‧second conductor

222‧‧‧Soft layer

30‧‧‧ Lifting mechanism

31‧‧‧ Limit Board

310‧‧‧Limited holes

311‧‧‧First side panel

312‧‧‧ second side panel

32‧‧‧ Connecting rod assembly

321‧‧‧Press

322‧‧‧ activities

322a‧‧‧ first end

322b‧‧‧second end

323‧‧‧ Lifting rod

40‧‧‧Analysis host

S‧‧‧Articles to be tested

S1‧‧‧ wire line

Figure 1 is an architectural diagram of the electrical test system of the present invention.

FIG. 2 is a schematic view showing the state of use of the electrical detecting device of the present invention.

Figure 3 is a perspective view of the conductive rubber connector of the present invention.

FIG. 4 is a schematic diagram of an implementation aspect of a test component of the present invention.

FIG. 5 is a schematic diagram of another embodiment of the test component of the present invention.

The present disclosure discloses a novel test component and an electrical detection device loaded with the test component; when the electrical test device is electrically tested, the test component can be directly pressed onto the object to be tested, and The various conductor lines with different wire gaps are matched to achieve an electrical interconnection between the analysis host and the object to be tested, thereby improving the problem that the existing electrical test fixture cannot be adjusted in time for different wire gap arrangements.

In the preferred embodiment of the present invention, the object to be tested refers to a flexible printed circuit board to be tested (a bare board not equipped with electronic components), but this creation does not limit this. The "test component and its electrical detection device" will be further described in detail below with reference to the accompanying drawings and the embodiments.

[First Embodiment]

Please refer to FIG. 1 , which is a structural diagram of an electrical test system according to a first embodiment of the present invention. The electrical test system of the present invention includes an electrical detecting device 1 and an analysis host 40. The electrical detecting device 1 further includes a base 10, a test component 20 and a lifting device. The mechanism 30, wherein the test component 20 can cooperate with the analysis host 40 to measure the electrical characteristics of an object to be tested S (such as a flexible printed circuit board). It is worth noting that the present invention is directed to different types of articles S to be tested, and it is not necessary to replace the test component 20.

Please refer to FIG. 2 for a schematic view of the state of use of the electrical detecting device according to the first embodiment of the present invention. As shown, the base 10 is substantially L-shaped from the side, specifically including a test platform 11 and a support frame 12 mounted on the test platform 11, and the test platform 11 and the support frame 12 are substantially mutually vertical.

In the specific embodiment, the test platform 11 can place the object to be tested S thereon; and in order to increase the accuracy of the electrical test, the test platform 11 is provided with a plurality of positioning structures on the surface opposite to the test component 20. 111, such as a positioning pin, a positioning pin, etc., but the creation is not limited thereto. When the electrical measurement is to be performed, the object S to be tested can be accurately positioned on the surface of the test platform 11 by the positioning holes 111 corresponding to the plurality of positioning through holes (not shown) preset thereon. At the location to be tested.

The support frame 12 can be integrally formed with the test platform 11 or assembled to the test platform 11 in an assembled manner, but the present invention does not limit its assembly manner. Specifically, one end of the support frame 12 is connected to the test platform 11 , and the other end is extended to form a pivot structure 13 , and the lifting mechanism 30 is pivoted thereon for controlling the test component 20 relative to the surface of the test platform 11 . Lifting.

Please refer to FIG. 3 and FIG. 4 , wherein FIG. 3 is a schematic diagram of an embodiment of the test component of the present invention, and FIG. 4 is a perspective view of the conductive rubber connector of the present invention. In the present embodiment, the test component 20 is composed of one of the detection wires 21 and a conductive rubber connector 22 stacked one on another, and the structure is arranged to provide a glue layer between the detection wire 21 and the conductive rubber connector 22 ( Such as thermosetting glue), as a combination of the two.

The detecting cable 21 includes a plurality of first conductors 211 arranged at intervals and an insulating layer 212 covering the first conductors 211, and the first conductors 211 are exposed to the insulating layer 212 at opposite ends. When the application is created, the layout design of the first conductors 211 can be adjusted according to the test requirements.

The first conductor 211 of this embodiment is, for example, a metal wire, and the material thereof may include gold, Silver, copper, nickel, aluminum, chromium or any combination of the above materials, but the present invention is not limited thereto; the insulating layer 212 of the present embodiment is made of an insulating material covering the first conductors 211 (metal wires). The insulating material is, for example, polyamine (PI) or polyethylene terephthalate (PET), but the present creation is also not limited thereto.

Referring to FIG. 4, the improved design of the electrical test component 20 is to use a conductive rubber connector 22 including a plurality of second conductors 221 arranged at intervals and covering the second conductors 221. A soft rubber layer 222, and the opposite ends of the second conductors 221 are also exposed to the soft rubber layer 222. When the application is created, one end of the conductive rubber connector 22 is in contact with the first conductor 211 in the detecting wire 21, and the other end is in contact with the wire line S1 of the object S to be tested, thereby providing the detecting wire 21 The electrical and signal connections between the object S to be tested are connected to facilitate the analysis of the host 40.

The second conductor 221 of this embodiment is, for example, a metal wire, and the material thereof may include gold, silver, copper, nickel, aluminum, chromium or any combination of the above materials, but the present invention is not limited thereto; the soft glue of this embodiment The layer 222 is made of a rubber material covering the second conductors 221 (metal wires), but the present invention is also not limited thereto, wherein the size of the first conductors 211 is the same as the size of the second conductor 221, and The second conductors 221 are connected in a one-to-one manner, respectively.

It is further to be noted that the insulating test layer 212 covering the first conductors 211 and the soft rubber layer 222 covering the second conductors 221 have a buffer when the external test force is impacted or impacted. Efficacy, so that after the external force collision or impact disappears, it can return to the initial state without external force. Accordingly, the first conductors 211 and the second conductors 221 are less prone to deformation due to stress, so that the test assembly 20 retains its original function under repeated use for a long period of time.

Referring to FIGS. 1 and 2, the lifting mechanism 30 includes a limiting plate 31 and a link assembly 32. The limiting plate 31 is fixed to one side of the support frame 12, and the connecting rod assembly 32 is assembled to one end of the supporting frame 12, and the connecting rod assembly 32 also passes through the limiting plate 31 and the test group. The piece 20 is formed to be fixed. In this embodiment, the limiting plate 31 is substantially L-shaped from the side, specifically, the first side plate 311 and the second side plate 312, wherein the first side plate 311 is fixed to the side of the support frame 12 The second side plate 312 is connected to the end of the first side plate 311 and has a limiting hole 310, so that the connecting rod assembly 32 can be more accurately along a vertical line (not shown) passing through the limiting hole 310. Displacement.

In more detail, the link assembly 32 includes a pressing rod 321, a movable member 322, and a lifting rod 323. The movable member 322 is bent at one end, and the movable member 322 is curved, specifically, a half-moon connecting member, but the present invention is not limited thereto, and the movable member 322 has a first end 322a and a second end 322b connectable to other components, and the first end 322a is pivotally coupled to the pressing rod 321; the lifting rod 323 is pivotally coupled to the movable member 322 at one end The two ends 322b are connected, and the other end is fixed to the detecting cable 21 of the test component 20 through the limiting hole 310 of the limiting plate 31.

In order to make it easier for those skilled in the art to understand the advantages and effects of the creation, the operation mode of the electronic detection device of the present invention will be described in detail below, so that various modifications can be made without departing from the spirit of the creation. And changing to perform or apply the electrical detection device.

First, the tester accurately positions the object to be tested S on the test platform 11 so that the wire line S1 and the test component 20 correctly correspond; then, the tester pulls the pressure bar 321 downward, and the pressure bar 321 is displaced from the initial position. At the same time as the operation position, the lifting rod 323 is driven by the movable member 322 to move the test assembly 20 toward the object S to be tested, so that the exposed second conductor 221 of the conductive rubber connector 22 accurately contacts the wire of the object S to be tested. Line S1.

After the electrical connection is completed, the analysis host 40 can measure the electrical characteristics of the object S to be tested to determine whether the object S to be tested meets the requirements; after the test is completed, the tester pulls the pressure bar 321 upwards, and the pressure bar 321 While being displaced from the operating position to the initial position, the lifting rod 323 is driven via the movable member 322 to move the test assembly 20 away from the object S to be tested.

[Second embodiment]

Please refer to FIG. 5 , which is a schematic diagram of another embodiment of the test component of the present invention. As shown in the figure, although the detecting cable 21 of the present embodiment is designed in accordance with the wire line S1 of the object S to be tested of different specifications, the size of the first conductor 211 and the second conductor 221 of the conductive rubber connector 22 are The dimensions do not match. It should be noted that, in the test component 20 of the present embodiment, one of the first conductors 211 of the detecting cable 21 can also be connected to the N second conductors 221 of the conductive rubber connector 22 in a one-to-many manner, N being an integer. . Thus, the test component 20 of the present invention is suitable for the gaps of the wire lines S1 of various sizes on the object S to be tested of different specifications for smooth detection.

In summary, compared with the conventional electrical test fixture, the test component and the electrical detection device for the electrical test have at least the following effects:

1. The test component of the creation uses the detection cable with the conductive rubber connector, which can be directly pressed onto the object to be tested and matched with various wire lines with different wire gaps without destroying the object to be tested (such as soft printing). The circuit line of the circuit board greatly improves the efficiency of the electrical test.

2. According to the first point, although the first conductor in the detection cable does not conform to the size of the second conductor in the conductive rubber connector, the electrical connection between the two conductors can be completed in a one-to-many connection. , greatly improve the reliability and convenience of electrical testing.

3. When the creation is applied, the tester can easily control the up and down movement of the test component to touch the wire line on the object to be tested by simply pulling the pressure bar up and down, without any need for manual electrical testing. The accuracy of the electrical test.

Although the embodiments of the present disclosure are as above, they are not intended to limit the creation. Those who have ordinary knowledge in the field of the present invention can make various changes and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application.

1‧‧‧Electrical testing device

10‧‧‧ Pedestal

111‧‧‧ Positioning structure

20‧‧‧Test components

30‧‧‧ Lifting mechanism

40‧‧‧Analysis host

Claims (11)

A test assembly comprising: a test cable comprising a plurality of first conductors arranged at intervals and an insulating layer covering the first conductors, wherein opposite ends of the first conductors are exposed to the insulating layer; a conductive rubber connector stacked on the detection cable, the conductive rubber connector comprising a plurality of second conductors arranged at intervals and a soft rubber layer covering the second conductors, the relatives of the second conductors Both ends are exposed to the soft layer and connected to the first conductors. The test assembly of claim 1, wherein the first conductive systems respectively connect one of the second conductors in a one-to-one manner. The test component of claim 1, wherein the first conductive systems respectively connect N of the second conductors in a one-to-many manner, and N is an integer. An electrical detection device includes: a pedestal having a test platform for an object to be tested; a test component detachably disposed above the test platform and including a detection cable and the detection row a conductive rubber connector connected to the wire; and a lifting mechanism disposed on the base for controlling the test component to be lifted and lowered relative to the test platform and in contact with the object to be tested. The electrical detection device of claim 4, wherein the base further comprises a support frame mounted on the test platform, the lifting mechanism being coupled to the support frame. The electrical detection device of claim 5, wherein the lifting mechanism comprises a limiting plate and a connecting rod assembly, the limiting plate is fixed to one side of the supporting frame, and the connecting rod assembly is disposed on the supporting frame One end of the connecting rod assembly passes through the limiting plate and is connected to the testing component. The electrical detection device of claim 6, wherein the support frame further includes a pivoting structure, the link assembly includes: a pressing rod, one end of the pressing rod is pivotally disposed on the pivoting structure; a movable member having a curved shape and having a first end and a second end, the first end connecting the pressing rod; and a lifting rod, one end of the lifting rod being connected to the second end, the lifting rod The other end is connected to the test component. The electrical detecting device of claim 4, wherein the detecting cable comprises a plurality of first conductors arranged at intervals and an insulating layer covering the first conductors, wherein opposite ends of the first conductors are exposed In the insulating layer. The electrical detecting device of claim 8, wherein the object to be tested is a flexible printed circuit board and has a plurality of test contacts, the conductive rubber connector comprising a plurality of second conductors arranged at intervals and covering the second a soft rubber layer of the conductor, the opposite ends of the second conductor are exposed to the soft rubber layer, and the first conductor for electrically connecting the detection cable and the conductive rubber connector are stacked on the first conductor and the conductive conductor These test contacts of a flexible printed circuit board. The electrical detecting device of claim 9, wherein the first guiding systems respectively connect one of the second conductors in a one-to-one manner. The electrical detection device of claim 9, wherein the first guiding systems respectively connect N of the second conductors in a one-to-many manner, and N is an integer.