WO2017156780A1

WO2017156780A1 - Radio-frequency detection apparatus

Info

Publication number: WO2017156780A1
Application number: PCT/CN2016/076764
Authority: WO
Inventors: 聂林红
Original assignee: 深圳市艾励美特科技有限公司
Priority date: 2016-03-18
Filing date: 2016-03-18
Publication date: 2017-09-21
Also published as: CN107850625A; CN107850625B

Abstract

A radio-frequency detection apparatus, comprising a PCB circuit board (10), a probe carrier board (20) and a test board (30). The PCB circuit board (10) is provided on the probe carrier board (20). The test board (30) is located under the probe carrier board (20). The probe carrier board (20) is provided with several probes (40). The top of the probes (40) are connected to the PCB circuit board (10). One end of the PCB circuit board (10) is connected to a radio-frequency line unit (60). The radio-frequency line unit (60) is connected between the PCB circuit board (10) and a radio-frequency detection instrument (50). Signal transmission between the PCB circuit board (10) and the radio-frequency detection instrument (50) is accomplished by means of the radio-frequency line unit (60). Several PCB board interfaces (11) are provided on the PCB circuit board (10). One end of each radio frequency line (61) is correspondingly connected to the PCB board interfaces (11). A circuit-wiring portion (70) is provided on the PCB circuit board (10). The circuit-wiring portion (70) is connected between the probes (40) and the PCB board interfaces (11).

Description

Radio frequency detecting device

Technical field

The invention relates to a detecting device, in particular to a device for performing radio frequency detection on a radio frequency module and a radio frequency component in an electronic product.

Background technique

Radio Frequency (RF) is an abbreviation for Radio Frequency, which refers to the electromagnetic frequency that can be radiated into space, ranging from 300KHz to 300GHz. RF radio frequency is RF current, which is an abbreviation of high frequency AC change electromagnetic wave. An alternating current that changes less than 1000 times per second is called a low-frequency current, and a frequency of more than 10,000 times is called a high-frequency current, and a radio frequency is such a high-frequency current. Radio frequency technology is mostly used in wireless communication products, such as network base stations, mobile phones, notebooks, etc. In electronic theory, current flows through the conductor, and a magnetic field is formed around the conductor; alternating current passes through the conductor, and an alternating electromagnetic field is formed around the conductor. , called electromagnetic waves. When the electromagnetic wave frequency is lower than 100khz, the electromagnetic wave will be absorbed by the surface and cannot form an effective transmission. However, when the electromagnetic wave frequency is higher than 100khz, the electromagnetic wave can propagate in the air and be reflected by the ionosphere at the outer edge of the atmosphere to form a long-distance transmission capability. We refer to high-frequency electromagnetic waves with long-distance transmission capability as radio frequencies; radio frequency technology is widely used in the field of wireless communications.

RF modules or RF components in products such as mobile phones, notebooks, and tablets are the core components of such electronic products, which directly determine the product quality of related electronic products. Therefore, the detection of the RF portion of the product is extremely extreme during production inspection. Significance.

There are also some RF detection tools on the market, but there are still many shortcomings in the use of these RF detection tools. Now they are described as follows: First, the RF probe of the detection tool is large, and the clamping fixture requires a large space. Trouble; Secondly, the RF probe has low clamping accuracy and cannot meet the high-precision requirements. When the RF probe is large, the connection needs to connect a large number of RF lines, which is disorderly. In addition, the probe is connected to the RF line for a long time, and the line loss is large, which affects the test. The effect is that, at present, the position of the probe corresponding to the PCB needs to be avoided, and the space that the PCB board can be manipulated is reduced, which is the main disadvantage of the prior art.

Summary of the invention

The invention provides a radio frequency detecting device, wherein the radio frequency probe part can be made small according to requirements, the installation space can be greatly saved, and the mounting precision of the radio frequency probe is improved, and the high precision requirement can be met. In addition, the radio frequency probe RF line of the invention is on the PCB. When the circuit board completes the routing and walks to the end of the PCB board, it is connected to the instrument equipment through the RF signal interface in an orderly manner, and the routing of the wiring is reasonable. Finally, the RF signal interface of the present invention is located at the end of the PCB, which can shorten the RF Line length, reducing line loss, enhancing test results, facilitating transfer and maintenance, and this is the main purpose of the present invention.

The technical solution adopted by the present invention is: a radio frequency detecting device comprising a PC circuit board, a pin carrier board and a test board, wherein the PC circuit board is disposed on the needle carrier board, and the test board is located on the needle carrier board Below the needle carrier is provided with a plurality of probes, the probe top being connected to the PC circuit board. At the time of testing, the RF module or the RF component to be detected is first placed on the test board, and then the needle carrier is docked with the test board. At this moment, a plurality of the probes are in contact with the test board. After the corresponding position of the tested product, connect and transfer the signal. The signal is transmitted to a radio frequency detection instrument through the PC circuit board, and the detection result is fed back to the relevant inspector in real time.

A radio frequency line unit is connected to one end of the PC circuit board. The radio frequency line unit is connected between the PC circuit board and the radio frequency detecting instrument, and the signal transmission between the PC circuit board and the radio frequency detecting instrument is completed by the radio frequency line unit. The radio frequency line unit includes a plurality of radio frequency lines. The PC circuit board is provided with a plurality of PCT board interfaces, and one end of each of the RF lines is correspondingly connected to the PCT board interface. A plurality of the RF lines can be arranged in parallel with each other. In a specific implementation, the top of the probe is connected to the PC circuit board chip, and the probe is integrally disposed in the needle carrier, and the probe passes through the needle carrier.

Providing a circuit trace portion on the PC circuit board, the circuit trace portion being connected between the probe and the PCT board interface, and the trace portion of the circuit is completed between the probe and the PCT board interface Signal transmission. A shielding structure is arranged around the wiring portion of the circuit to achieve the purpose of shielding signal interference.

The RF line is a high frequency connection line, and the two ends of the RF line are respectively provided with a high frequency connection line interface, wherein the high frequency connection line interface at one end of the RF line is connected to the PCT board interface, and the other end of the RF line The high frequency connection line interface is connected to the device interface on the radio frequency detecting instrument, and an uploading plate is further disposed on the bottom surface of the needle carrier board.

The probe includes a probe body, a probe connector, a docking pin, a probe core, and an insulating shielding portion, wherein the probe body is bored in the needle carrier, and the probe body has a lumen perforation. The probe connector is disposed on the top of the probe body, and the probe connector is connected to the circuit trace portion, and the docking pin and the probe core are disposed in the cavity through hole of the probe body Wherein the butt core is connected between the probe connector and the top of the probe core, the probe core is passed under the perforation of the inner cavity, and the insulating shield is circumferentially disposed on the butt core And surrounding the probe core to achieve an insulation shielding, the insulating shielding portion comprising a first insulating shielding portion, a second insulating shielding portion and a third insulating shielding portion, wherein the first insulating shielding portion is circumferentially disposed on the butting Needle core And surrounding the top of the probe core, the second insulating shielding portion and the third insulating shielding portion are disposed around the upper and lower ends of the probe core, and the probe core passes through the through hole of the inner cavity. The sleeve is provided with a main body sleeve, and the top of the main body sleeve is inserted at the bottom of the probe body.

The invention has the beneficial effects that the probe of the invention can be organically combined with the electronic PCB board, the RF line part is routed through the PCB board, the PCB board is beautiful and practical, the wiring mode is reasonable, and the RF probe clamping precision of the invention is further The technical solution of the present invention provides a more free space mode for the line layout, and at the same time, the RF line portion of the present invention is routed through the PCB board, which can greatly save the cost.

DRAWINGS

Figure 1 is a schematic perspective view of the present invention.

Figure 2 is a schematic cross-sectional view of the present invention.

Figure 3 is a schematic cross-sectional view of the probe of the present invention.

detailed description

As shown in FIGS. 1 to 3, a radio frequency detecting device includes a PCB circuit board 10, a card carrier board 20, and a test board 30, wherein the PCB circuit board 10 is disposed on the needle carrier board 20, and the test board 30 Located below the needle carrier 20, a plurality of probes 40 are disposed in the needle carrier 20, and the top of the probe 40 is connected to the PCB circuit board 10.

When the test is performed, the RF module or the RF component to be detected is first placed on the test board 30, and then the needle carrier 20 is docked with the test board 30. At this moment, a plurality of the probes 40 are in contact with the test board 30. The tested product A on the test board 30 is connected to the corresponding position and is switched.

The signal is transmitted through the PCB circuit board 10 to a radio frequency detecting instrument 50, and the detection result is fed back to the relevant inspector in real time.

The traditional detection equipment is completed by simple wiring when transmitting signals, that is, it is directly connected between the probe tail and the radio frequency detecting instrument by using a plurality of signal lines, and the signal transmission method needs to connect a large number of radio frequency lines. It is disorderly. In addition, the connected RF line is long and the line loss is large, which will greatly affect the test results.

A radio frequency line unit 60 is connected to one end of the PCB circuit board 10.

The RF line unit 60 is connected between the PCB circuit board 10 and the RF detecting instrument 50, and the signal transmission between the PCB circuit board 10 and the RF detecting instrument 50 is completed by the RF line unit 60.

The RF line unit 60 includes a plurality of RF lines 61.

In a specific implementation, the PCB circuit board 10 is provided with a plurality of PCT board interfaces 11, and one end of each of the RF lines 61 is correspondingly connected to the PCT board interface 11.

A plurality of the RF lines 61 may be disposed in parallel with each other.

In a specific implementation, the top of the probe 40 is attached to the PCB circuit board 10, and the probe 40 is integrally disposed in the needle carrier 20, and the probe 40 passes through the needle carrier 20 .

A circuit trace portion 70 is disposed on the PCB circuit board 10, and the circuit trace portion 70 is connected between the probe 40 and the PCT board interface 11, through which the trace portion 70 is completed at the probe 40 Signal transmission between the PCT board interface 11.

A shield structure is arranged around the circuit trace portion 70 to achieve the purpose of shielding signal interference.

In the specific implementation, the RF line 61 is a high frequency connection line, and the two ends of the RF line 61 are respectively provided with a high frequency connection line interface 62, wherein the high frequency connection line interface 62 at one end of the RF line 61 is The PCT board interface 11 is connected.

The high frequency connection interface 62 at the other end of the RF line 61 is coupled to the device interface 51 on the RF detection instrument 50.

In the specific implementation, the loading plate 21 is further disposed on the bottom surface of the needle carrier 20.

As shown in FIG. 3, in a specific implementation, the probe 40 includes a probe body 41, a probe connector 42, a butt core 43, a probe core 44, and an insulating shield portion, wherein the probe body 41 The needle body 20 is bored in the needle carrier 20, and the probe body 41 has a lumen perforation.

The probe connector 42 is disposed on top of the probe body 41 while the probe connector 42 is coupled to the circuit trace portion 70.

The docking core 43 and the probe core 44 are disposed in the cavity bore of the probe body 41, wherein the docking core 43 is coupled to the probe connector 42 and the top of the probe core 44. The probe core 44 is passed under the perforation of the lumen.

The insulating shield portion is disposed around the mating core 43 and the probe core 44 to achieve an insulating shield.

In the specific implementation, the insulating shield portion 45 includes a first insulating shield portion 451, a second insulating shield portion 452, and a third insulating shield portion 453. The first insulating shielding portion 451 is disposed around the butting core 43 and the top of the probe core 44. The second insulating shield portion 452 and the third insulating shield portion 453 are disposed around the upper and lower ends of the probe core 44.

The probe core 44 is sleeved with a main body sub-case 46 from a portion penetrating below the inner cavity perforation, and the top of the main body sub-case 46 is inserted at the bottom of the probe main body 41.

In a specific implementation, the radio frequency signal transmitting port B on the tested product A is under the probe 40, and when the probe 40 contacts the radio frequency signal transmitting port B, the communication and switching signals can be immediately performed.

Claims

A radio frequency detecting device comprising a PC circuit board, a pin carrier board and a test board, wherein the PC circuit board is disposed on the needle carrier board, and the test board is located below the needle carrier board, the needle carrier board A plurality of probes are disposed, the top of the probe is connected to the PC circuit board, and one end of the PC circuit board is connected with a radio frequency line unit, and the radio frequency line unit is connected between the PC circuit board and the radio frequency detecting instrument, The RF line unit completes signal transmission between the PC circuit board and the RF detection instrument. The PC circuit board is provided with a plurality of PCT board interfaces, and one end of each of the RF lines is correspondingly connected to the PCT board interface. A circuit trace portion is disposed on the circuit board, and the circuit trace portion is connected between the probe and the PCT board interface.
A radio frequency detecting device according to claim 1, wherein the probe comprises a probe body, a probe connecting seat, a docking pin, a probe pin, and an insulating shielding portion, wherein the probe body is worn Provided in the needle carrier, the probe body has a cavity through hole, the probe connector is disposed on the top of the probe body, and the probe connector is connected to the circuit trace portion, the docking pin and The probe core is disposed in the lumen bore of the probe body, wherein the docking pin is coupled between the probe connector and the top of the probe core, the probe core is from the lumen Passing under the perforation, the insulating shielding portion is disposed around the mating core and the probe core, and the probe core is sleeved with a main body sleeve from a portion penetrating below the inner cavity perforation, the main body The top of the sleeve is inserted at the bottom of the probe body.
A radio frequency detecting device according to claim 2, wherein the insulating shield portion comprises a first insulating shield portion, a second insulating shield portion, and a third insulating shield portion, wherein The first insulating shielding portion is disposed around the butting core and the top of the probe core, and the second insulating shielding portion and the third insulating shielding portion are circumferentially disposed at upper and lower ends of the probe core.
A radio frequency detecting device according to claim 1, wherein the radio frequency line unit comprises a plurality of radio frequency lines, and the plurality of radio frequency lines are arranged in parallel with each other.
A radio frequency detecting device according to claim 1, wherein the top of the probe is connected to the PC circuit board.
A radio frequency detecting device according to claim 1, wherein a shielding structure is disposed around the circuit trace portion.
The radio frequency detecting device of claim 1 , wherein the radio frequency line is a high frequency connecting line, and two ends of the radio frequency line are respectively provided with a high frequency connecting line interface, wherein the high end of the radio frequency line is high. The frequency connection interface is connected to the PCT board interface, and the high frequency connection line interface at the other end of the RF line is connected to the device interface on the radio frequency detection instrument.
A radio frequency detecting device according to claim 1, wherein an uploading plate is further disposed on a bottom surface of the needle carrier.