CN203894282U - Signal switching structure of probe type detection device - Google Patents

Abstract

The utility model is a signal transfer structure of a probe-type detection device arranged between the detection platform of the detection device and the computer machine. It is provided with closely arranged positioning perforations on a transfer plate, and each positioning perforation can be Each is fixed with a hollow transfer terminal; one end of the transfer terminal is a contact end for contacting and transmitting signals to the computer, and the other end is a plug end connected to its hollow interior for a The signal line is plugged in; one end of the signal line is electrically connected to the detection platform, and the other end is a pin whose outer diameter is slightly smaller than the inner diameter of the adapter terminal, and the pin is bent so that it can be inserted into the adapter from the plug end After the terminal is connected, the elasticity generated by its bending can quickly and firmly complete the insertion, thereby overcoming the major shortcoming of the existing technology that the signal line must be welded one by one to connect the signal line to the transfer terminal.

Description

Signal transfer structure of probe type detection device

technical field

The utility model relates to a signal transfer structure applied to a probe-type detection device, which is used to transmit the circuit signal measured by the detection device to a computer machine for analysis through the signal transfer structure. the

Background technique

General printed circuit boards, semiconductor packaging components, wafers and other products need to be inspected by a dedicated probe-type inspection device after they are manufactured, so as to confirm the yield and impedance of the product and maintain product quality. The probe-type detection device mainly uses closely arranged fine probes to contact the conductive circuits on the circuit board in the product respectively, and then measures the electrical characteristics transmitted by each probe through a computer machine to judge the circuit on the circuit board. Whether the electrical characteristics meet the specifications. the

Since today's portable electronic products such as smart phones emphasize easy portability, their functions are increasingly powerful, so that the circuit layout of the portable electronic product circuit board is often so fine that it is necessary to use a magnifying glass to view one by one; , also caused difficulties in the manufacture of the probe-type detection device. the

As shown in Figure 1, the existing probe-type detection device includes a detection table 1, which is provided with closely arranged fine probes 2, and each probe 2 protrudes from the upper end surface of the detection table 1, and is connected with the detection table 1. The circuit layout of the circuit board 3 to be tested is corresponding, and the bottom of the probe 2 is respectively connected to a signal wire 4, and all the signal wires are respectively electrically connected to the transfer terminals 6, which are also arranged in a fine arrangement on a signal transfer board 5, and then The test signal is transmitted to the computer machine 7 through each transfer terminal 6 on the signal transfer board 5 for interpretation. the

Under the requirements of precise signal transmission, the body of the general signal transfer board is about 100X100mm, and the number of transfer terminals arranged on the transfer board is usually 4096. Arranging 4096 transfer terminals in an area of 10 cm square is already a It is not easy, but in the prior art, when the aforementioned signal wires are to be electrically connected to each transfer terminal, manual welding must be adopted to connect each signal wire to the transfer terminals one by one, which not only has difficult processing, lengthy assembly hours, The manufacturing speed is slow, the cost is increased, and the manual welding is easy to damage the eyesight and cause a major loss of misjudgment, which affects the accuracy of the detection. It is necessary to improve the structural design. the

In view of this, the inventor has accumulated many years of research and practical experience in related fields, and specially created a signal transfer structure to solve the problem of the difficulty in welding the transfer terminals and signal lines on the existing signal transfer board. the

Utility model content

The purpose of this utility model is to provide a signal transfer structure applied to a probe-type detection device. The transfer terminal and the signal line of the signal transfer structure are inserted and fixed with each other in the form of a hollow terminal and a pin. Moreover, the contact pin is bent to generate elasticity, and can be quickly and firmly inserted into the hollow terminal to complete the electrical connection operation, which solves the shortcomings of difficult welding between the transfer terminal and the signal line and lengthy assembly time. the

In order to achieve the above object, the utility model provides a signal transfer structure of a probe type detection device, the signal transfer structure is arranged between the detection platform of the detection device and the computer machine, so that the circuit signal measured by the detection device It can be transmitted to a computer machine for analysis through a signal transfer structure; among them:

The signal transfer structure is provided with finely arranged positioning perforations on a transfer plate, and a hollow transfer terminal is fixed in each positioning perforation;

The two ends of the adapter terminal protrude from the upper end surface and the lower end surface of the adapter plate respectively. One end of the adapter terminal is a contact end for contacting and transmitting signals to the computer machine, and the other end is connected to the adapter terminal. The hollow inner plug end for a signal line to plug in;

One end of the signal line is electrically connected to the detection platform, and the other end of the signal line is a pin with an outer diameter smaller than the inner diameter of the transfer terminal, and the pin is bent so that it can be inserted into the transfer terminal from the plug-in end, by The elasticity generated by its bending can quickly and firmly plug in. the

Since the transfer terminals are hollow, the pins of the signal wires can be directly inserted into the transfer terminals to complete the electrical connection, thus overcoming the major deficiency in the prior art that the signal wires can be connected to the transfer terminals by welding one by one. In addition, the contact pin is bent and has elasticity, and can be quickly inserted into the transfer terminal to complete the electrical connection operation, and it is also difficult for the contact pin to loosen from the transfer terminal. the

The implementation of each element is further described below:

During implementation, the transfer terminal is formed by winding a metal sheet, and its outer edge is provided with at least one clamping protruding ring larger than or equal to the inner diameter of the positioning through hole, so that the transfer terminal can be firmly clamped in the positioning perforation through the clamping protruding ring. , so that the transfer terminal is not easy to loosen from the through hole. the

During implementation, the end of the contact end of the transfer terminal is in the shape of a closed round cap, and protrudes from the lower end surface of the transfer plate, so as to be electrically connected with the computer to transmit the signal to the computer. the

During implementation, the finely arranged positioning perforations on the transfer plate are arranged horizontally and vertically, the transfer plate is about 100×100mm, and the number of perforations is about 4000-4200. the

During implementation, one end of the signal line electrically connected to the detection table is a telescopic probe, and the telescopic probe is electrically connected to the pin through a wire, so that the signal measured by the detection device passes through the telescopic probe of the signal line. The pins, wires, pins, and transfer terminals on the transfer board are transmitted to the computer machine for interpretation by operators. the

During implementation, the telescopic probe includes a limiting cylinder electrically connected to the wire, an elastic element disposed in the limiting cylinder, and a thimble disposed in the limiting cylinder and constantly protruding from the limiting cylinder by the elastic top of the elastic element , the tip of the thimble can be contacted by the probe of the detection device to transmit the signal. When assembling, the telescopic probe can also provide an elastic holding force so that the probe always protrudes from the upper end surface of the test table, so that the probe can easily contact the circuit layout of the circuit board to be tested, and the circuit board to be tested is placed on the test table Finally, the weight of the circuit board to be tested will cause the probe and the thimble of the telescopic probe to displace downward, so that the elastic element will be compressed downward to prevent the probe from being deformed by the weight of the circuit board. the

Compared with the prior art, the utility model has the following advantages:

1. The transfer terminal on the transfer board is hollow, so that the pins of the signal line can be inserted into the transfer terminal, which overcomes the lack of welding one by one in the prior art to connect the signal line to the transfer terminal. the

2. The contact pin is bent and flexible, and can be quickly inserted into the transfer terminal to complete the electrical connection operation, and it is also difficult for the contact pin to loosen from the transfer terminal. the

3. The telescopic probe of the signal line can also provide an elastic holding force so that the probe always protrudes from the upper end surface of the test table, so that the probe can easily contact the circuit layout of the circuit board to be tested. the

Below according to technical means of the present utility model, enumerate and be suitable for the embodiment of the present utility model, and cooperate accompanying drawing to illustrate as follows:

Description of drawings

Figure 1: Schematic diagram of the existing probe-type detection device;

Figure 2: Schematic diagram of the location of the signal transfer structure of the present invention;

Figure 3: The three-dimensional appearance diagram of the adapter plate of the present utility model;

Figure 4: The three-dimensional appearance diagram of the signal transfer structure of the present utility model;

Figure 5: Schematic diagram of the structure of the signal transfer structure of the present invention. the

Explanation of reference signs: 1-signal transfer structure; 2-detection platform; 3-computer machine; 4-probe; 5-circuit board; 10-transfer plate; 11-positioning perforation; 21-contact end; 22-plug end; 23-holding convex ring; 30-signal line; 31 pin; 32-telescopic probe; 321-limiting cylinder; 322-elastic element; wire. the

Detailed ways

As shown in Figure 2, the signal transfer structure 1 of a probe-type detection device of the present invention is arranged between the detection platform 2 of the detection device and the computer machine 3, so that the circuit signal measured by the detection device can pass through The signal conversion structure 1 is transmitted to the computer machine 3 for analysis. The detection table 2 is provided with closely arranged fine probes 4, each probe 4 protrudes from the upper end surface of the detection table 2, and corresponds to the circuit layout of the circuit board 5 to be tested. In the illustration, only two probes are used. needle as an example. the

As shown in FIG. 2 , the signal transfer structure 1 is provided with finely arranged positioning through holes 11 on a transfer plate 10 , and a hollow transfer terminal 20 can be fixed in each positioning through hole 11 . As shown in FIG. 3 , the finely arranged positioning perforations 11 on the adapter plate 10 are arranged horizontally and vertically. The adapter plate 10 is about 100×100 mm in size, and the number of the through holes 11 is about 4000-4200. the

As shown in Figures 2 to 5, when assembled, the two ends of the transfer terminal 20 respectively protrude from the upper and lower end surfaces of the transfer board 10, and one end is a contact end 21 for contacting and transmitting signals to the computer machine. 3. The other end is a plug-in end 22 connected to the hollow interior for a signal line 30 to plug in. the

One end of the signal line 30 is a pin 31, and the other end is a telescopic probe 32. The outer diameter of the pin 31 is smaller than the inner diameter of the adapter terminal 20, and it is bent so that it can be inserted into the adapter terminal 20 from the insertion end 22. Finally, through the elasticity generated by its bending, the insertion can be quickly and firmly completed, which overcomes the major deficiency in the prior art that the signal line can be connected to the transfer terminal by welding one by one. the

The telescopic probe 32 of the signal line 30 is electrically connected to the probe 4 on the detection platform 2, and the telescopic probe 32 is electrically connected to the described pin 31 through a wire 33, so that the signal measured by the detection device is passed through the signal. The telescopic probe 32 of the line 30, the wire 33, the pin 31, and the transfer terminal 20 on the transfer board 10 are transmitted to the computer machine 3 for the operator to interpret. the

The telescopic probe 32 includes a limit cylinder 321 electrically connected to the wire 33, an elastic element 322 disposed in the limit cylinder 321, and a constant protrusion set in the limit cylinder 321 by the elastic top of the elastic element 322. The thimble 323 of the limit cylinder 321, the tip of the thimble 323 can be contacted by the probe 4 on the detection platform 2 to transmit a signal. the

As shown in Figure 4, the transfer terminal 20 is formed by winding a metal sheet, and its outer edge is provided with at least one clamping protruding ring 23 greater than or equal to the inner diameter of the positioning through hole 11, and the end of the contact end 21 is a closed round cap shape; the transfer terminal 20 can be clamped in the positioning through hole 11 by the clamping convex ring 23, so that the transfer terminal 20 is not easy to loosen from the through hole 11. the

With the above-mentioned structure, the transfer terminal 20 is hollow, so that the pin 31 of the signal line 30 can be inserted into the transfer terminal 20, which overcomes the major deficiency in the prior art that the signal line 30 must be welded one by one to connect the signal line 30 to the transfer terminal. In addition, the contact pin 31 is bent and elastic, and can be quickly inserted into the transfer terminal 20 to complete the electrical connection operation, and the contact pin 31 is not easy to loosen from the transfer terminal 20 . the

In addition, as shown in Figure 2 and Figure 5, during assembly, the telescopic probe 32 can also provide an elastic holding force to make the probe 4 constantly protrude from the upper end surface of the detection table 2, so that the probe 4 is convenient to connect with the circuit of the circuit board 5 to be tested. The layouts are in contact. After the circuit board 5 to be tested is placed on the testing table 2, the weight of the circuit board 5 to be tested will cause the probe 4 and the thimble 323 of the telescopic probe 32 to move downward, so that the elastic element 322 will be compressed downward. , to prevent the probe 4 from being deformed by the weight of the circuit board 5 . the

However, the above implementation description and the accompanying drawings illustrate preferred embodiments of the present utility model, and are not intended to limit the present utility model. Therefore, anyone who is similar or identical to the structure, device, feature, etc. of the present utility model shall belong to the creation purpose of the present utility model and within the scope of the patent application. the

Claims (6)

1. the signal converting of probe-type pick-up unit structure, this signal converting structure installation, between the monitor station and computer board of pick-up unit, makes the measured circuit signal of pick-up unit be constructed and to be transferred to computer board for analysis by signal converting; It is characterized in that:

This signal converting is configured in the positional punch that fine and closely woven arrangement is set on a transfer panel, in each positional punch, fixes respectively for a conversion terminal that is hollow form;

Described conversion terminal two ends are stretched on respectively upper surface and the lower surface of transfer panel, conversion terminal wherein one end is contact jaw for contact and signal transmission to computer board, the other end is the inserted terminal that is communicated in the hollow interior of this conversion terminal, for a signal wire connecting;

Described signal wire wherein one end is electrically connected on monitor station, and the signal wire other end is the contact pin that external diameter is less than conversion terminal internal diameter, and this contact pin is bending and can inserts conversion terminal by inserted terminal.

2. the signal converting of probe-type pick-up unit as claimed in claim 1 structure, it is characterized in that: this conversion terminal is a sheet metal coil winding forming, its outer rim is at least provided with a bulge loop that holds that is more than or equal to positional punch internal diameter, and conversion terminal can be rigidly held in positional punch by holding bulge loop.

3. the signal converting of probe-type pick-up unit as claimed in claim 2 structure, is characterized in that: the end of the contact jaw of this conversion terminal is the round cap shape of sealing.

4. the signal converting of probe-type pick-up unit as claimed in claim 1 structure, is characterized in that: on described transfer panel, the positional punch of fine and closely woven arrangement is transverse and longitudinal arrangement.

5. the signal converting of the probe-type pick-up unit as described in any one in claim 1 to 4 structure, is characterized in that: one end that this signal wire is electrically connected on monitor station is a pogo pin, and this pogo pin is electrically connected on described contact pin by a wire.

6. the signal converting of probe-type pick-up unit as claimed in claim 5 structure, it is characterized in that: this pogo pin comprises a position-limiting drum, that is electrically connected on wire and is arranged on flexible member and in position-limiting drum and is arranged in position-limiting drum and is subject to flexible member elasticity to hold the thimble of constant protrusion position-limiting drum, and this thimble top contacts with signal transmission for the probe of pick-up unit.