CN115378517A - 5G communication product mainboard testing arrangement - Google Patents

5G communication product mainboard testing arrangement Download PDF

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Publication number
CN115378517A
CN115378517A CN202210999637.0A CN202210999637A CN115378517A CN 115378517 A CN115378517 A CN 115378517A CN 202210999637 A CN202210999637 A CN 202210999637A CN 115378517 A CN115378517 A CN 115378517A
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CN
China
Prior art keywords
plate
test
front door
testing
communication product
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Granted
Application number
CN202210999637.0A
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Chinese (zh)
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CN115378517B (en
Inventor
张翔峰
汪时涛
黄利华
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Zhongshan Boceda Electronic Technology Co ltd
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Zhongshan Boceda Electronic Technology Co ltd
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Priority to CN202210999637.0A priority Critical patent/CN115378517B/en
Publication of CN115378517A publication Critical patent/CN115378517A/en
Application granted granted Critical
Publication of CN115378517B publication Critical patent/CN115378517B/en
Priority to PCT/CN2023/105744 priority patent/WO2024037238A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00Screening of apparatus or components against electric or magnetic fields
    • H05K9/0069Methods for measuring the shielding efficiency; Apparatus therefor; Isolation container for testing

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The invention discloses a 5G communication product mainboard testing device which is compact in structure, good in shielding performance and high in testing efficiency. The electric control test box comprises a test box component, wherein an electric control bottom cavity and a test shielding cavity located in the electric control bottom cavity are arranged in the test box component, a test clamp bottom plate is arranged at the bottom of the test shielding cavity, a plugging mechanism is arranged on the rear side of the test clamp bottom plate, a chute pressing mechanism is arranged above the test clamp bottom plate, a front door component is arranged at the front end of the test box component, a push-pull driving device connected with the front door component is arranged in the electric control bottom cavity, a test carrier module is fixed at the rear end of the front door component, the front door component is in sealing fit with the test box component under the driving of the push-pull driving device, and the test carrier module extends into the test shielding cavity along with the front door component. The invention is applied to the technical field of network equipment design and manufacture.

Description

5G communication product mainboard testing arrangement
Technical Field
The invention relates to a testing device, in particular to a testing device for a 5G communication product mainboard.
Background
The fifth generation communication technology, 5G for short, has higher reliability and lower time delay, can meet the specific requirements of industries such as intelligent manufacturing and automatic driving, widens the development space of the fusion industry, and supports the innovative development of the economy and the society. Meanwhile, the range of the required test of the product is wider and higher, and therefore, the test of the 5G communication product is stricter. The radio frequency testing process is generally the most complex and most influential process in a wireless communication equipment production line, and is also generally the bottleneck of the production line. The radio frequency test station is generally composed of a test instrument, a shielding box, test software and the like, and can be generally divided into a calibration test, a comprehensive test, an antenna test and the like, wherein the passing rate of a certain test station or certain test stations is low; the reduction of output will lead to the sharp increase of production line bottleneck and production cost, and the reason for this is roughly divided into: product design or material reasons, test problems (misdetection problems), environmental factors such as radio frequency interference and the like, and uncertain test problems. The antenna is a very important part, the performance of the antenna directly influences the communication performance of a product, and the performance of the antenna of the product is tested in a mode of testing the whole machine of the product, but the mode is complex in testing and consumes time and labor after the antenna is defective, so that the testing of the antenna of the mainboard of the product is particularly important.
Communication product mainboard testing arrangement on the present market mostly is the shielded cell that the bevel connection opened and shut or top cap open and shut, and inside anchor clamps are changed the difficulty, and anchor clamps are general integration, and the commonality is relatively poor, and it is higher to change the cost. If adopt traditional mode to uncap, not only waste time and energy, production work efficiency is lower, also has the potential safety hazard simultaneously. In addition, some production lines need to separate the shielding box from the wire body, which does not meet the requirement of automation operation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a 5G communication product mainboard testing device which is compact in structure, good in shielding performance and high in testing efficiency.
The technical scheme adopted by the invention is as follows: the test box assembly comprises a test box assembly, wherein an electric control bottom cavity and a test shielding cavity positioned in the electric control bottom cavity are arranged in the test box assembly, a test clamp bottom plate is arranged at the bottom of the test shielding cavity, a plugging mechanism is arranged on the rear side of the test clamp bottom plate, a chute pressing mechanism is arranged above the test clamp bottom plate, a front door assembly is arranged at the front end of the test box assembly, a push-pull driving device connected with the front door assembly is arranged in the electric control bottom cavity, a test carrier module is fixed at the rear end of the front door assembly, the front door assembly is in sealing fit with the test box assembly under the driving of the push-pull driving device, the test carrier module extends into the test shielding cavity along with the front door assembly, a 5G communication product mainboard placed in the test carrier module is positioned under the chute pressing mechanism, and the plugging mechanism is positioned right behind the 5G communication product mainboard.
Further, the chute pressing mechanism comprises an air cylinder mounting plate, two thin air cylinders, two fixing plates, a Contraband type moving plate and a pressing plate, the air cylinder mounting plate is mounted between two side walls of the upper end of the test box assembly, the two thin air cylinders are mounted on two sides of the air cylinder mounting plate, the two fixing plates are respectively mounted on two side walls of the upper end of the test box assembly, straight groove guide rails are arranged on the inner sides of the fixing plates, two ends of the Contraband type moving plate are mounted in the two straight groove guide rails in an adaptive manner, the rear end of the Contraband type moving plate is connected with the two thin air cylinders, straight vertical groove grooves are formed in the front and rear ends of the straight groove guide rails, arc-shaped inclined groove grooves are formed in the front and rear ends of the Contraband type moving plate, driven wheels are arranged around the pressing plate, the driven wheels are matched with the straight vertical groove and the arc-shaped inclined groove, the driven wheels penetrate through the arc-shaped inclined groove and extend into the straight vertical groove, and a plurality of pressing columns are arranged at the lower end of the pressing plate; and a linear transverse guide rail and a guide wheel matched with the linear transverse guide rail are arranged between two arc-shaped inclined rail grooves at the same end of the Contraband type moving plate, and the guide wheel is fixed in the straight groove guide rail through a pin.
Furthermore, the test box subassembly includes the box body, the both ends of box body all are provided with the transport handle, the upper end of box body is provided with the upper cover plate, the upper cover with the box body adopts the hasp to connect the closure, the front end of box body is provided with qianmen rectangle opening, qianmen rectangle open-ended periphery is provided with rectangle annular groove one, the front end both sides of box body all are provided with the protection grating ware, the rear end of box body is provided with the communication filtering interface ware.
Furthermore, the electric control bottom cavity comprises a top plate, the push-pull driving device comprises two air cylinder installation seats, a driving air cylinder, a push-pull connecting block and two guide rods, the two air cylinder installation seats are respectively installed at the front end and the rear end below the top plate, the driving air cylinder is installed between the two air cylinder installation seats, the two guide rods are symmetrically installed at the two sides of the driving air cylinder, the push-pull connecting block is connected with the driving air cylinder, and the two guide rods and the push-pull connecting block are both connected with the lower end of the front door assembly.
Furthermore, the front door assembly comprises a front door plate, a front door pressing plate and a movable drawing plate, a rectangular annular groove II is formed in the back of the front door plate, a rectangular sealing block matched with a rectangular opening of the front door is formed in the inner periphery of the rectangular annular groove II, a rectangular annular block matched with the rectangular opening of the front door is formed in the periphery of the rectangular annular groove II, conductive cotton is attached to the inner portions of the rectangular annular groove I and the rectangular annular groove II, hook blocks are arranged at two ends of the front door plate, the upper end of the front door pressing plate is fixed between the two hook blocks, elastic pressing wheels are mounted in two sides of the upper end of the front door pressing plate, the two elastic pressing wheels are respectively located in the two hook blocks, the middle of the lower end of the front door pressing plate is connected with the connecting block, and two sides of the lower end of the front door pressing plate are respectively connected with the two guide rods; the movable drawing plate is fixed to the bottom of the rectangular sealing block, movable sliding rails are arranged at two ends of the bottom of the movable drawing plate, and sliding rail sliding blocks matched with the movable sliding rails are arranged at two ends of the bottom plate of the test fixture.
Furthermore, the test carrier module comprises a lower support plate, a main printed circuit board and a pin point aligning template, wherein the lower support plate is installed on the movable drawing plate, the main printed circuit board is installed on the lower support plate, the pin point aligning template is installed on the main printed circuit board, the pin point aligning template is provided with a plurality of radio frequency pin through holes, the 5G communication product mainboard is installed on the pin point aligning template, and the radio frequency pins on the 5G communication product mainboard penetrate through the radio frequency pin through holes to be communicated with the main printed circuit board.
Further, the plug mechanism comprises a motor mounting plate, a driving motor, two linear guide rails, a driving rod, a moving block, a plug mounting seat, a fine adjustment seat and an RJ45 connector, wherein the motor mounting plate is mounted at the rear side of the bottom plate of the test fixture, the driving motor is mounted in the middle of the motor mounting plate, the two linear guide rails are symmetrically mounted on two sides of the motor mounting plate, the moving block is mounted between the two linear guide rails in an adaptive mode and is connected with the driving motor through the driving rod, the plug mounting seat is mounted at the front end of the moving block, the fine adjustment seat is mounted at the top of the plug mounting seat, the RJ45 connector is mounted at the top of the fine adjustment seat, and a connector of a 5G communication product mainboard is inserted under the driving of the driving motor.
Furthermore, the plug installation seat comprises a base plate and a longitudinal plate, the base plate and the longitudinal plate are both provided with waist-shaped countersunk holes, the moving block and the fine adjustment seat are both provided with threaded holes, the plug installation seat is fixed on the threaded holes after penetrating through the waist-shaped countersunk holes of the base plate through bolts, and the fine adjustment seat is fixed on the threaded holes after penetrating through the waist-shaped countersunk holes of the longitudinal plate through bolts.
Furthermore, the box body comprises a box frame body which is formed by sealing and splicing aluminum plates, and a shielding layer and a wave-absorbing material layer are sequentially arranged on the outer layer of the box frame body; and two ends of the bottom of the box body are provided with positioning bottom plates.
Furthermore, the lower end of the top plate is also provided with a U-shaped plate, the U-shaped plate is provided with a control plate and an electromagnetic valve, one end of the top plate is provided with a pressure regulating valve, and the rear end of the top plate is provided with a DB25 female head extending into the testing shielding cavity.
The beneficial effects of the invention are: 1. the design of the test carrier module is adopted, and the test carrier module can enter and exit the test shielding cavity along with the front door assembly, so that the test carrier module is convenient to replace and can be adapted to products of different models, the universality is higher, the later maintenance and debugging are also convenient, and in addition, compared with the traditional shielding box with an opening and closing type bevel opening or a top cover, the structure has the advantages that the product taking and placing are more convenient and faster, and the production efficiency is effectively improved; 2. the structural design of the chute pressing mechanism can effectively save the internal space of the test box assembly, so that the overall structure is compact, and products with larger sizes can be tested; 3. the push-pull driving device in the electric control bottom cavity is adopted to drive the front door assembly and the test box assembly to open or close the door, so that the shielding performance of the test shielding cavity is not interfered by the push-pull driving device, and the test effect is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded schematic view of the present invention;
FIG. 3 is a rear view of the present invention;
FIG. 4 is a bottom view within the electrically controlled bottom chamber;
FIG. 5 is a schematic view of the test box assembly;
FIG. 6 is a schematic structural view of the front door assembly, the test carrier module and the plugging mechanism;
FIG. 7 is a top view of the front door assembly, the test carrier module, and the plugging mechanism;
FIG. 8 is an exploded schematic view of the front door assembly;
FIG. 9 is an exploded schematic view of the chute hold down mechanism;
FIG. 10 is a schematic structural view of the plugging mechanism;
FIG. 11 is an enlarged schematic view of the portion of FIG. 5A;
fig. 12 is an enlarged schematic view of a portion of fig. 6B.
Detailed Description
As shown in fig. 1 to 12, in this embodiment, the present invention includes a test box assembly 1, an electrical control bottom cavity 2 and a test shielding cavity 3 located in the electrical control bottom cavity 2 are disposed in the test box assembly 1, a test fixture bottom plate 4 is disposed at the bottom of the test shielding cavity 3, a plugging mechanism 5 is disposed at the rear side of the test fixture bottom plate 4, a chute pushing mechanism 6 is disposed above the test fixture bottom plate 4, a front door assembly 7 is disposed at the front end of the test box assembly 1, a push-pull driving device 8 connected to the front door assembly 7 is disposed in the electrical control bottom cavity 2, a test carrier module 9 is fixed at the rear end of the front door assembly 7, the front door assembly 7 is driven by the push-pull driving device 8 to be in sealing fit with the test box assembly 1, the test carrier module 9 extends into the test shielding cavity 3 along with the front door assembly 7, and a 5G communication product motherboard disposed in the test carrier module 9 is located right below the chute pushing mechanism 6, and the plugging mechanism 5G communication product motherboard is located right behind the 5G communication product motherboard.
In this embodiment, the chute pressing mechanism 6 includes an air cylinder mounting plate 61, two thin air cylinders 62, two fixing plates 63, contraband type moving plates 64 and a lower pressing plate 65, the air cylinder mounting plate 61 is mounted between two side walls of the upper end of the test box assembly 1, the two thin air cylinders 62 are mounted on two sides of the air cylinder mounting plate 61, the two fixing plates 63 are respectively mounted on two side walls of the upper end of the test box assembly 1, the inner sides of the fixing plates 63 are provided with straight groove guide rails 631, two ends of the Contraband type moving plate 64 are mounted in the two straight groove guide rails 631 in an adaptive manner, the rear end of the Contraband type moving plate 64 is connected to the two thin air cylinders 62, the front and rear ends of the straight groove guide rails 631 are provided with straight vertical guide rail grooves 632, the front and rear ends of the Contraband type moving plate 64 are provided with arc inclined rail grooves, the periphery of the lower pressing plate 65 is fixed with moving wheel seats, each moving wheel seat is provided with a driven wheel 66, when different products need to be replaced, the upper cover plate 13, the moving plate is loosened, the moving plate 65 is replaced, the lower ends of the moving plate and the lower pressing plate 641 penetrates through the straight groove guide rails 66 and the lower ends of the driven wheel posts 641, and the straight guide rails are provided with the arc inclined guide rails 632, and the linear guide rails 641; a linear transverse guide rail 642 and a guide wheel 68 matched with the linear transverse guide rail 642 are arranged between the two arc-shaped inclined rail grooves 641 at the same end of the Contraband type moving plate 64, the guide wheel 68 is fixed in the straight groove guide rail 631 through a pin, the guide wheel 68 enables the Contraband type moving plate 64 to move more smoothly between the two straight groove guide rails 631, compared with the existing box body with the same external dimension, the design structure has large internal space, a product with a larger dimension can be tested, and the specific operation process is as follows: the thin cylinder 62 drives the Contraband type moving plate 64 to move in the straight groove guide rail 631, four driven wheels 66 in the lower pressing plate 65 are pressed downwards under the matching constraint of the arc-shaped inclined rail groove 641 and the straight line vertical guide rail groove 632, the driven wheels 66 move to the tail ends of the tracks of the arc-shaped inclined rail groove 641 and the straight line vertical guide rail groove 632, so that the pressing columns 67 in the lower pressing plate 65 press products, and the pressing height of the lower pressing plate 65 can be accurately controlled through the designed track length, so that the pressing force is well controlled.
In this embodiment, the test box assembly 1 includes a box body 11, carrying handles 12 are disposed at two ends of the box body 11, an upper cover plate 13 is disposed at an upper end of the box body 11, the upper cover and the box body 11 are connected by a lock 14 and are closed and conductive to form a shielding test environment of the test shielding cavity 3, a front door rectangular opening 15 is disposed at a front end of the box body 11, the front door rectangular opening 15 is large in space and can be used for multiple communication products to enter the test box assembly 1, a rectangular annular groove 16 is disposed on a periphery of the front door rectangular opening 15, protection grating devices 17 are disposed on two sides of the front end of the box body 11, the protection grating devices 17 can prevent injury accidents caused by misoperation of workers, a communication filter interface 18 and a plurality of radio frequency interfaces 19 are disposed at a rear end of the box body 11, the communication filter interface 18 and the radio frequency interfaces 19 both extend into the test shielding cavity 3, the communication filter interface 18 includes a DB9 interface, an RJ45 interface, a USB interface, and the like, each interface is designed by an EMI filter processing circuit, and the frequency band of the communication filter interface is greater than 80 MHz and greater than 80 MHz.
In this embodiment, the electrically controlled bottom cavity 2 includes a top plate 21, the push-pull driving device 8 includes two cylinder installation seats 22, a driving cylinder 23, a push-pull connection block 24 and two guide rods 25, the two cylinder installation seats 22 are respectively installed at the front end and the rear end below the top plate 21, the driving cylinder 23 is installed between the two cylinder installation seats 22, the two guide rods 25 are symmetrically installed at the two sides of the driving cylinder 23, the push-pull connection block 24 is connected with the driving cylinder 23, and both the two guide rods 25 and the push-pull connection block 24 are connected with the lower end of the front door assembly 7.
In this embodiment, the front door assembly 7 includes a front door panel 71, a front door pressing plate 72 and a movable drawing plate 73, a rectangular annular groove two 74 is provided on the back of the front door panel 71, a rectangular sealing block 75 adapted to the front door rectangular opening 15 is formed on the inner periphery of the rectangular annular groove two 74, a rectangular annular block 76 adapted to the rectangular annular groove one 16 is formed on the outer periphery of the rectangular annular groove two 74, conductive cotton is attached to both the rectangular annular groove one 16 and the rectangular annular groove two 74, a double-layer groove design is adopted here, and conductive cotton is attached, so that the test box assembly 1 achieves overall closed conductive continuity, and the isolation of the test box assembly 1 is ensured; the front door plate 71 is provided with clamping hook blocks 711 at two front ends, the upper end of the front door pressing plate 72 is fixed between the two clamping hook blocks 711, elastic pressing wheels 721 are respectively installed in two sides of the upper end of the front door pressing plate 72, the two elastic pressing wheels 721 are respectively positioned in the two clamping hook blocks 711, the middle of the lower end of the front door pressing plate 72 is connected with the push-pull connecting block 24, and two sides of the lower end of the front door pressing plate 72 are respectively connected with the two guide rods 25; the movable drawing plate 73 is fixed at the bottom of the rectangular sealing block 75, the two ends of the bottom of the movable drawing plate 73 are provided with movable slide rails 731, and the two ends of the bottom plate 4 of the test fixture are provided with slide rail slide blocks 41 matched with the movable slide rails 731.
In this embodiment, the test carrier module 9 includes a lower carrier plate 91, a main pcb 92 and a pin point alignment template 93, the lower carrier plate 91 is installed on the movable pulling plate 73, both ends of the lower carrier plate 91 are provided with bar holes and fixed on the movable pulling plate 73 through bolts, the position of the movable pulling plate 73 is finely adjusted by the position of the bolts installed through the bar holes in this design, and different products need to be replaced the test carrier module 9, and also can be replaced only by unfastening the bolts, which is convenient and fast, the main pcb 92 is installed on the lower carrier plate 91, the pin point alignment template 93 is installed on the main pcb 92, the pin point alignment template 93 is provided with a plurality of rf pin through holes 94,5G communication product main boards installed on the pin point alignment template 93, and the rf pins on the 5G communication product main boards pass through the rf pin through holes 94 to be conducted with the main pcb 92.
In this embodiment, the plugging mechanism 5 includes a motor mounting plate 51, a driving motor 52, two linear guide rails 53, a driving rod 54, a moving block 55, a plugging mounting seat 56, a fine tuning seat 57 and an RJ45 connector 58, where the motor mounting plate 51 is mounted on the rear side of the test fixture base plate 4, the driving motor 52 is mounted in the middle of the motor mounting plate 51, the two linear guide rails 53 are symmetrically mounted on two sides of the motor mounting plate 51, the moving block 55 is mounted between the two linear guide rails 53 in an adaptive manner, the moving block 55 is connected to the driving motor 52 through the driving rod 54, the plugging mounting seat 56 is mounted at the front end of the moving block 55, the fine tuning seat 57 is mounted at the top of the plugging mounting seat 56, and the RJ45 connector 58 is mounted at the top of the fine tuning seat 57 and is inserted into a connector of a 5G communication product main board under the driving of the driving motor 52.
In this embodiment, the plug mounting seat 56 includes a base plate and a longitudinal plate, the base plate and the longitudinal plate are both provided with a waist-shaped countersunk hole 561, the moving block 55 and the fine adjustment seat 57 are both provided with threaded holes, the plug mounting seat 56 passes through the waist-shaped countersunk hole 561 of the base plate and then is fixed on the threaded holes through bolts, the fine adjustment seat 57 passes through the waist-shaped countersunk hole 5611 of the longitudinal plate and then is fixed on the threaded holes through bolts, and the design can finely adjust the upper, lower, left and right positions of the RJ45 connector 58 through the position where the waist-shaped countersunk hole 561 is fixed on the threaded holes, so that the plug mounting seat can also be adapted to products of different model sizes.
In this embodiment, the box body 11 comprises a box frame body formed by sealing and splicing aluminum plates, and a shielding layer and a wave-absorbing material layer are sequentially arranged on the outer layer of the box frame body, so that the design structure effectively improves the environmental interference, and ensures that the isolation degree of the box body 11 is greater than 80dB when the communication frequency band is 800MHz-6 GHz; and two ends of the bottom of the box body 11 are provided with positioning bottom plates 10.
In this embodiment, the lower end of the top plate 21 is further provided with a u-shaped plate 26, the u-shaped plate 26 is provided with a control plate 27 and an electromagnetic valve 28, one end of the top plate 21 is provided with a pressure regulating valve 29, and the rear end of the top plate 21 is provided with a DB25 female 210 extending into the testing shielding cavity 3.
In this embodiment, the front of box body 11 is provided with start button, start button pass through the control panel with drive actuating cylinder electric connection, the front lower extreme of box body 11 is provided with DC 24V power connection and power button.
The working process of the invention is as follows: the present invention is started by pressing the front start button, the bottom driving cylinder 23 drives the push-pull connection block 24 and the guide rod 25 to separate the front door assembly 7 from the test box assembly 1, the device product to be tested is placed on the test carrier module 9, the test carrier module 9 is gently sent into the interior of the test box assembly 1 under the drive of the driving cylinder 23 and the guide rod 25, when the front door panel 71 is attached to the front end of the box body 11, the interior is pushed by the two thin cylinders 62 at the rear side to press down the device product to be tested through the lower press plate 65, the driving motor 52 drives the RJ45 connector 58 to insert into the device product to be tested and electrically connected with the communication filter interface 18 at the rear end through the RJ45 connector 58, the electric control signal required by the device product to be tested is connected to the computer through the communication filter interface 18, when the test operation starts, the computer control instrument connects the antenna probe to transmit and receive signals to complete the test of the automatic collection of the whole radio frequency index data of the device product to be tested, when the test operation is performed, when the test is completed, the test, the operation is completed, the driving motor 52 drives the plug mechanism 5 to return, the inner lower press plate 65 to retract through the rear side cylinder 62 and retract and to constrain the straight line to be matched with the rail guide rail groove of the front door assembly 23 and the rail assembly 23 to drive the test box assembly to complete the test vehicle assembly to complete the separation process of the test vehicle assembly 1, and the test vehicle assembly to complete the test process of the test operation of the test vehicle assembly 1.
The hardware automatic auxiliary measuring device capable of repeatedly carrying out consistent radio frequency electric field space radiation type measurement is used for simulating the radio frequency index condition close to the communication between an actual user and a communication base station and better reflecting whether the radio frequency index of the tested mobile phone meets the factory radio frequency index inspection requirement or not.
In conclusion, the invention adopts a special box body structure, a high-performance wave-absorbing material and a stable test carrier, so that the box body has good shielding performance in a communication frequency band (800 MHz-6 GHz), and the product test is ensured to be carried out in an interference-free environment. And better reflecting whether the radio frequency index of the tested product meets the delivery radio frequency index inspection requirement.
The invention is applied to the technical field of network equipment design and manufacture.
While the embodiments of the present invention have been described in terms of practical embodiments, they are not to be construed as limiting the meaning of the present invention, and modifications of the embodiments and combinations with other embodiments will be apparent to those skilled in the art in light of the present description.

Claims (10)

1. The utility model provides a 5G communication product mainboard testing arrangement which characterized in that: the test box assembly comprises a test box assembly (1), wherein an electric control bottom cavity (2) and a test shielding cavity (3) located in the electric control bottom cavity (2) are arranged in the test box assembly (1), a test clamp bottom plate (4) is arranged at the bottom of the test shielding cavity (3), a plugging mechanism (5) is arranged on the rear side of the test clamp bottom plate (4), a chute pressing mechanism (6) is arranged above the test clamp bottom plate (4), a front door assembly (7) is arranged at the front end of the test box assembly (1), a push-pull driving device (8) connected with the front door assembly (7) is arranged in the electric control bottom cavity (2), a test carrier module (9) is fixed at the rear end of the front door assembly (7), the front door assembly (7) is driven by the push-pull driving device (8) to be in sealing fit with the test box assembly (1), the test carrier module (9) follows the front door assembly (7) to extend into the test shielding cavity (3), and a 5G communication product placed in the test carrier module (9) is located under the chute pressing mechanism (6) and a communication mechanism (5G) is located behind the plugging mechanism.
2. The device for testing the mainboard of a 5G communication product according to claim 1, wherein: the chute pressing mechanism (6) comprises an air cylinder mounting plate (61), two thin air cylinders (62), two fixing plates (63), a Contraband type moving plate (64) and a lower pressing plate (65), the cylinder mounting plate (61) is arranged between two side walls at the upper end of the test box assembly (1), the two thin cylinders (62) are arranged at two sides of the cylinder mounting plate (61), the two fixing plates (63) are respectively arranged at two side walls at the upper end of the test box assembly (1), the inner sides of the fixed plates (63) are provided with straight groove guide rails (631), the two ends of the Contraband type moving plate (64) are arranged in the two straight groove guide rails (631) in a matching way, and the rear end of the Contraband type moving plate (64) is connected with the two thin cylinders (62), the front end and the rear end of the straight groove guide rail (631) are respectively provided with a straight line vertical guide rail groove (632), arc-shaped inclined rail grooves (641) are arranged at the front and the back of two ends of the Contraband type moving plate (64), driven wheels (66) are arranged on the periphery of the lower pressure plate (65), the driven wheel (66) is matched with the linear vertical guide rail groove (632) and the arc-shaped inclined rail groove (641), and the driven wheel (66) passes through the arc-shaped inclined rail groove (641) and extends into the linear vertical guide rail groove (632), the lower end of the lower pressing plate (65) is provided with a plurality of pressing columns (67); a linear transverse guide rail (642) and a guide wheel (68) matched with the linear transverse guide rail (642) are arranged between two arc-shaped inclined rail grooves (641) at the same end of the Contraband type moving plate (64), and the guide wheel (68) is fixed in the straight groove guide rail (631) through a pin.
3. The device for testing the mainboard of a 5G communication product according to claim 1, wherein: the testing box assembly (1) comprises a box body (11), carrying handles (12) are arranged at two ends of the box body (11), an upper cover plate (13) is arranged at the upper end of the box body (11), the upper cover and the box body (11) are connected and closed through a lock catch (14), a front door rectangular opening (15) is arranged at the front end of the box body (11), a rectangular annular groove I (16) is formed in the periphery of the front door rectangular opening (15), protection grating devices (17) are arranged on two sides of the front end of the box body (11), and a communication filtering connector (18) is arranged at the rear end of the box body (11).
4. The apparatus of claim 3, wherein the test board comprises: the electric control bottom cavity (2) comprises a top plate (21), the push-pull driving device (8) comprises two air cylinder installation seats (22), a driving air cylinder (23), a push-pull connecting block (24) and two guide rods (25), the two air cylinder installation seats (22) are respectively installed at the front end and the rear end below the top plate (21), the driving air cylinder (23) is installed between the two air cylinder installation seats (22), the two guide rods (25) are symmetrically installed on two sides of the driving air cylinder (23), the push-pull connecting block (24) is connected with the driving air cylinder (23), and the two guide rods (25) and the push-pull connecting block (24) are connected with the lower end of the front door assembly (7).
5. The device for testing the mainboard of a 5G communication product according to claim 4, wherein: the front door assembly (7) comprises a front door panel (71), a front door pressing plate (72) and a movable drawing plate (73), a rectangular annular groove II (74) is formed in the back of the front door panel (71), a rectangular sealing block (75) matched with a front door rectangular opening (15) is formed in the inner periphery of the rectangular annular groove II (74), a rectangular annular block (76) matched with the rectangular annular groove I (16) is formed in the periphery of the rectangular annular groove II (74), conductive cotton is attached to the inner parts of the rectangular annular groove I (16) and the rectangular annular groove II (74), clamping hook blocks (711) are arranged at two front ends of the front door panel (71), the upper end of the front door pressing plate (72) is fixed between the two clamping hook blocks (711), elastic pressing wheels (721) are mounted in two sides of the upper end of the front door pressing plate (72), the two elastic pressing wheels (721) are respectively located in the two clamping hook blocks (711), the middle of the lower end of the front door pressing plate (72) is connected with the push-pull connecting block (24), and two sides of the lower end of the front door pressing plate (72) are respectively connected with the two guide rods (25); the movable drawing plate (73) is fixed at the bottom of the rectangular sealing block (75), movable sliding rails (731) are arranged at two ends of the bottom of the movable drawing plate (73), and sliding rail sliding blocks (41) matched with the movable sliding rails (731) are arranged at two ends of the bottom plate (4) of the test fixture.
6. The device for testing the mainboard of a 5G communication product according to claim 5, wherein: the test carrier module (9) comprises a lower carrier plate (91), a main printed circuit board (92) and a pin point aligning template (93), wherein the lower carrier plate (91) is installed on the movable drawing plate (73), the main printed circuit board (92) is installed on the lower carrier plate (91), the pin point aligning template (93) is installed on the main printed circuit board (92), the pin point aligning template (93) is provided with a plurality of radio frequency pin through holes (94), a 5G communication product mainboard is installed on the pin point aligning template (93), and a radio frequency pin on the 5G communication product mainboard penetrates through the radio frequency pin through holes (94) to be communicated with the main printed circuit board (92).
7. The apparatus of claim 6, wherein the test board comprises: the plugging mechanism (5) comprises a motor mounting plate (51), a driving motor (52), two linear guide rails (53), a driving rod (54), a moving block (55), a plugging mounting seat (56), a fine adjustment seat (57) and an RJ45 connector (58), wherein the motor mounting plate (51) is mounted on the rear side of the test fixture base plate (4), the driving motor (52) is mounted in the middle of the motor mounting plate (51), the two linear guide rails (53) are symmetrically mounted on two sides of the motor mounting plate (51), the moving block (55) is mounted between the two linear guide rails (53) in an adaptive mode, the moving block (55) is connected with the driving motor (52) through the driving rod (54), the plugging mounting seat (56) is mounted at the front end of the moving block (55), the fine adjustment seat (57) is mounted on the top of the plugging mounting seat (56), the RJ45 connector (58) is mounted on the top of the fine adjustment seat (57), and a connector of a 5G communication main board is inserted under the driving of the driving motor (52).
8. The device for testing the motherboard of a 5G communication product according to claim 7, wherein: plug mount pad (56) include bed plate and vertical board, the bed plate with vertical board all is equipped with waist type counter sink (561), movable block (55) with fine tuning seat (57) all are equipped with the screw hole, plug mount pad (56) pass through the bolt the waist type counter sink (561) after-fixing of bed plate is on the screw hole, fine tuning seat (57) pass through the bolt the waist type counter sink (561) after-fixing of vertical board is on the screw hole.
9. The device for testing the mainboard of a 5G communication product according to claim 2, wherein: the box body (11) comprises a box frame body which is formed by sealing and splicing aluminum plates, and a shielding layer and a wave-absorbing material layer are sequentially arranged on the outer layer of the box frame body; and two ends of the bottom of the box body (11) are provided with positioning bottom plates (10).
10. The device for testing the mainboard of a 5G communication product according to claim 4, wherein: the U-shaped plate is characterized in that a U-shaped plate (26) is further arranged at the lower end of the top plate (21), a control plate (27) and an electromagnetic valve (28) are mounted on the U-shaped plate (26), a pressure regulating valve (29) is arranged at one end of the top plate (21), and a DB25 female head (210) extending into the testing shielding cavity (3) is arranged at the rear end of the top plate (21).
CN202210999637.0A 2022-08-19 2022-08-19 5G communication product mainboard testing arrangement Active CN115378517B (en)

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