WO2024037238A1

WO2024037238A1 - 5g communication product mainboard testing device

Info

Publication number: WO2024037238A1
Application number: PCT/CN2023/105744
Authority: WO
Inventors: 张翔峰; 汪时涛; 黄利华
Original assignee: 中山市博测达电子科技有限公司
Priority date: 2022-08-19
Filing date: 2023-07-04
Publication date: 2024-02-22
Also published as: CN115378517A; CN115378517B

Abstract

Disclosed is a 5G communication product mainboard testing device which has a compact structure, good shielding performance and high testing efficiency. The present invention comprises a test box assembly. An electric control bottom cavity and a test shielding cavity located in the electric control bottom cavity are provided in the test box assembly. A test fixture bottom plate is provided at the bottom of the test shielding cavity. A plugging mechanism is provided on the rear side of the test fixture bottom plate. An inclined groove downward pressing mechanism is provided above the test fixture bottom plate. A front door assembly is provided at the front end of the test box assembly. A push-pull driving device connected to the front door assembly is provided 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 driven by the push-pull driving device to sealably attach to the test box assembly, and the test carrier module extends into the test shielding cavity along with the front door assembly. The present invention is applied to the technical field of network equipment design and manufacturing.

Description

A 5G communication product motherboard testing device

Technical field

The invention relates to a testing device, in particular to a 5G communication product mainboard testing device.

Background technique

The fifth generation communication technology, referred to as 5G, has higher reliability and lower latency. It can meet the specific needs of industrial applications such as intelligent manufacturing and autonomous driving, broaden the development space of integrated industries, and support economic and social innovation and development. At the same time, the scope of testing required for products is wider and higher. Therefore, the testing of 5G communication products is more stringent. The radio frequency testing process is usually the most complex and influential process in the wireless communication equipment production line, and is usually the bottleneck of the production line. RF test stations usually consist of test instruments, shielding boxes, test software, etc., and can usually be divided into calibration tests, comprehensive tests, antenna tests, etc. The pass rate of one or some test stations is low; Reduced output will lead to production line bottlenecks and sharp increases in production costs. The reasons can be roughly divided into: product design or material reasons, testing problems (mismeasurement problems), radio frequency interference and other environmental factors, and testing uncertainty. question. The antenna is a very important component. The performance of the antenna directly affects the communication performance of the product. The performance of the antenna of the product is tested through the whole product test. However, in this way, after the antenna is defective, the inspection It is relatively complex and time-consuming, so the product motherboard antenna test is particularly important.

Most communication product motherboard test devices on the market are shielding boxes with oblique openings or top covers. It is difficult to replace the internal fixtures. The fixtures are generally integrated, have poor versatility, and are expensive to replace. If the traditional method is used to open the lid, it is not only time-consuming and labor-intensive, the production efficiency is low, but also there are safety risks. In addition, some production lines also need to separate the shielding box from the line body, which does not meet the requirements for automated operations.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a 5G communication product mainboard testing device with compact structure, good shielding performance and high testing efficiency.

The technical solution adopted by the present invention is: the present invention includes a test box assembly. The test box assembly is provided with an electrically controlled bottom cavity and a test shielding cavity located in the electrically controlled bottom cavity. The test shielding cavity The bottom of the test fixture is provided with a test fixture bottom plate. The rear side of the test fixture bottom plate is provided with a plug-in and pull-out mechanism. The upper part of the test fixture bottom plate is provided with a chute pressing mechanism. The front end of the test box assembly is provided with a front door assembly. The electronically controlled bottom cavity is provided with a push-pull driving device connected to the front door assembly. The test carrier module is fixed at the rear end of the front door assembly. The front door assembly is sealed and fitted with the test box assembly driven by the push-pull drive device. The test carrier module follows the The front door assembly extends into the test shielding cavity, and at this time, the 5G communication product mainboard placed in the test carrier module is located directly below the chute pressing mechanism, and the plug-and-pull mechanism is located on the 5G communication product mainboard. directly behind.

Further, the chute pressing mechanism includes a cylinder mounting plate, two thin cylinders, two fixed plates, an U-shaped moving plate and a lower pressing plate. The cylinder mounting plate is installed between the two side walls of the upper end of the test box assembly. Two thin cylinders are installed on both sides of the cylinder mounting plate, and the two fixed plates are installed on both sides of the upper end of the test box assembly. Straight groove guide rails are provided on the inside of the fixed plates, so The two ends of the U-shaped moving plate are adapted to be installed in the two straight groove guide rails, and the rear end of the U-shaped moving plate is connected to the two thin cylinders. The front and rear ends of the straight groove guide rail Both ends are equipped with linear vertical guide rail grooves, and arc-shaped inclined rail grooves are provided at both ends of the U-shaped moving plate. Followed wheels are provided around the lower platen, and the driven wheels are in contact with the linear vertical guide rail grooves and The arc-shaped inclined rail grooves are all matched, and the driven wheel passes through the arc-shaped inclined rail groove and extends into the linear vertical guide rail groove. The lower end of the lower pressure plate is provided with several pressure pillars; A linear horizontal guide rail and a guide wheel matching the linear horizontal guide rail are provided between the two arc-shaped inclined rail grooves at the same end of the U-shaped moving plate. The guide wheel is fixed to the straight groove guide rail through a pin. Inside.

Further, the test box assembly includes a box body. Both ends of the box body are provided with carrying handles. The upper end of the box body is provided with an upper cover. The upper cover is connected to the box body. It is closed by locking connection. The front end of the box body is provided with a rectangular opening of the front door. The periphery of the rectangular opening of the front door is provided with a rectangular annular groove. Both sides of the front end of the box body are provided with protective gratings, so The rear end of the box body is provided with a communication filter interface.

Further, the electronically controlled bottom cavity includes a top plate, and the push-pull driving device includes two cylinder mounting seats, a driving cylinder, a push-pull connecting block and two guide rods, and the two cylinder mounting seats are respectively installed on the At the front and rear ends under the top plate, the driving cylinder is installed between the two cylinder mounting seats. The two guide rods are symmetrically installed on both sides of the driving cylinder. The push-pull connection block is connected to the driving cylinder. The two guide rods and the push-pull connecting block are connected to the lower end of the front door assembly.

Further, the front door assembly includes a front door panel, a front door pressure plate and a movable extraction plate. There is a rectangular annular groove 2 on the back of the board. The inner periphery of the rectangular annular groove 2 forms a rectangular sealing block that matches the rectangular opening of the front door. The periphery of the rectangular annular groove 2 forms a rectangular shape matching the rectangular annular groove 1. Ring block, the first rectangular ring groove and the second rectangular ring groove are both attached with conductive cotton inside, the front two ends of the front door panel are provided with hook blocks, and the upper end of the front door pressure plate is fixed on the two Between the hook blocks, elastic pressure wheels are installed on both sides of the upper end of the front door pressure plate. The two elastic pressure wheels are respectively located in the two hook blocks. The middle of the lower end of the front door pressure plate is The push-pull connecting block is connected, and both sides of the lower end of the front door pressure plate are connected to the two guide rods respectively; the movable pumping plate is fixed to the bottom of the rectangular sealing block, and the two ends of the bottom of the movable pumping plate are arranged There is a moving slide rail, and the two ends of the test fixture base plate are provided with slide rail blocks that are adapted to the moving slide rail.

Further, the test carrier module includes a download board, a main printed circuit board and a pin point alignment template. The download board is installed on the movable pumping board, and the main printed circuit board is installed on the download board. On the top, the pin-point alignment template is installed on the main printed circuit board. The pin-point alignment template is provided with several RF pin through holes. The 5G communication product main board is installed on the pin-point alignment template, and the 5G communication product main board is installed on the pin-point alignment template. The RF pins on the product's main board pass through the RF pin through holes and are connected to the main printed circuit board.

Further, the plug-in mechanism includes a motor mounting plate, a driving motor, two linear guide rails, a driving rod, a moving block, a plug-in mounting base, a fine-tuning base and an RJ45 connector. The motor mounting plate is installed on the test fixture. On the rear side of the base plate, the drive motor is installed in the middle of the motor mounting plate, two linear guide rails are symmetrically installed on both sides of the motor mounting plate, and the moving block is adapted to be installed between the two linear guide rails. And the moving block is connected to the driving motor through a driving rod, the plug-in mounting base is installed on the front end of the moving block, the fine-tuning seat is installed on the top of the plug-in mounting base, and the RJ45 connection The device is installed on the top of the fine-tuning seat, and is inserted into the connector of the 5G communication product motherboard driven by the driving motor.

Further, the plug-in mounting base includes a base plate and a longitudinal plate. Both the base plate and the longitudinal plate are provided with waist-shaped countersunk holes. The moving block and the fine-tuning seat are both provided with threaded holes. The plug-in mounting base is fixed on the threaded hole by bolts passing through the waist-shaped countersunk hole of the base plate, and the fine-tuning seat is fixed on the threaded hole after passing through the waist-shaped countersunk hole of the longitudinal plate by bolts. .

Further, the box body includes a box frame made of aluminum plates that are sealed and spliced together. The outer layer of the box frame is sequentially provided with a shielding layer and a wave-absorbing material layer; both ends of the bottom of the box body are provided with positioning base plate.

Further, the lower end of the top plate is also provided with a molded plate. A control panel and a solenoid valve are installed on the molded plate. 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 protruding valve. Test the DB25 female connector of the shielded cavity.

The beneficial effects of the present invention are: 1. Since the present invention adopts the design of the test carrier module, and the test carrier module can follow the front door assembly in and out of the test shielding cavity, it is convenient to replace the test carrier module; It can be adapted to different models of products, has high versatility, and is also convenient for later maintenance and debugging. In addition, compared with the traditional oblique opening or top cover opening and closing shielding box, this structure makes product access more convenient and faster, effectively improving production efficiency; 2. The structural design of the chute pressing mechanism can effectively save the internal space of the test box assembly, making the overall structure compact and capable of testing larger-sized products; 3. The push-pull drive device in the electronically controlled bottom cavity is used to drive the front door assembly Open or close the door with the test box assembly to ensure that the shielding performance of the test shielding cavity is not interfered by the push-pull drive device and improve the test effect.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is an explosion schematic diagram of the present invention;

Figure 3 is a rear view of the present invention;

Figure 4 is a bottom view of the electronic control bottom cavity;

Figure 5 is a schematic structural diagram of the test box assembly;

Figure 6 is a schematic structural diagram of the front door assembly, test vehicle module and plug-in mechanism;

Figure 7 is a top view between the front door assembly, the test carrier module and the plug-in mechanism;

Figure 8 is an exploded view of the front door assembly;

Figure 9 is an exploded schematic diagram of the chute pressing mechanism;

Figure 10 is a schematic structural diagram of the plug-in mechanism;

Figure 11 is an enlarged schematic diagram of part A in Figure 5;

FIG. 12 is an enlarged schematic view of part B in FIG. 6B.

Detailed ways

As shown in Figures 1 to 12, in this embodiment, the present invention includes a test box assembly 1. The test box assembly 1 is provided with an electrically controlled bottom cavity 2 and a test device located in the electrically controlled bottom cavity 2. Shielding cavity 3, the bottom of the test shielding cavity 3 is provided with a test fixture bottom plate 4, the back side of the test fixture bottom plate 4 is provided with a plug-in and pull-out mechanism 5, and a chute lower plate is provided above the test fixture bottom plate 4 Pressure mechanism 6, The front end of the test box assembly 1 is provided with a front door assembly 7. The electric control bottom cavity 2 is provided with a push-pull driving device 8 connected to the front door assembly 7. The rear end of the front door assembly 7 is fixed with a test chamber assembly 7. Carrier module 9. The front door assembly 7 is driven by the push-pull drive device 8 and is sealed and fitted to the test box assembly 1. The test carrier module 9 follows the front door assembly 7 and extends into the In the test shielding cavity 3, the 5G communication product mainboard placed in the test carrier module 9 is located directly below the chute pressing mechanism 6, and the plug-in and pull-out mechanism 5 is located on the 5G communication product mainboard. Directly behind.

In this embodiment, the chute pressing mechanism 6 includes a cylinder mounting plate 61, two thin cylinders 62, two fixed plates 63, an U-shaped moving plate 64 and a lower pressing plate 65. The cylinder mounting plate 61 is installed on Between the two side walls of the upper end of the test box assembly 1, two thin cylinders 62 are installed on both sides of the cylinder mounting plate 61, and the two fixing plates 63 are respectively installed on both sides of the upper end of the test box assembly 1. , the inner sides of the fixed plate 63 are provided with straight groove guide rails 631, the two ends of the U-shaped moving plate 64 are adapted to be installed in the two straight groove guide rails 631, and the rear of the U-shaped moving plate 64 The two ends are connected to the two thin cylinders 62, the front and rear ends of the straight groove guide rail 631 are provided with straight vertical guide rail grooves 632, and the two ends of the U-shaped moving plate 64 are provided with arc-shaped inclined rail grooves 641 , the lower pressure plate 65 is fixed with screws around the movable wheel base, and each movable wheel base is provided with a driven wheel 66. When a different product needs to be replaced, only the upper cover 13 needs to be opened, and the screws of the movable wheel base are loosened, that is, The lower pressure plate 65 can be replaced. The driven wheel 66 is adapted to both the linear vertical guide groove 632 and the arc inclined rail groove 641, and the driven wheel 66 passes through the arc inclined rail groove 641. And extends into the linear vertical guide groove 632, the lower end of the lower pressure plate 65 is provided with several pressure columns 67; a straight line is provided between the two arc-shaped inclined rail grooves 641 located at the same end of the U-shaped moving plate 64 The transverse guide rail 642 and the guide wheel 68 that are adapted to the linear transverse guide rail 642 are fixed in the straight groove guide rail 631 through pins. The guide wheel 68 makes the U-shaped moving plate 64 move between two straight grooves. The movement between the guide rails 631 is smoother. Compared with the existing boxes of the same outer size, this design structure has a larger internal space and can test larger-sized products. The specific operation process is: the thin cylinder 62 drives the U-shaped moving plate 64 in The four driven wheels 66 in the lower pressure plate 65 move in the straight groove guide rail 631 and press down under the cooperation constraints of the arc-shaped inclined rail groove 641 and the linear vertical guide rail groove 632. The driven wheels 66 move to the arc-shaped guide rail 631. The rail end of the inclined rail groove 641 and the straight vertical guide rail groove 632 allows the pressure column 67 in the lower pressure plate 65 to compress the product. Here, the height of the lower pressure plate 65 can be accurately controlled through the designed track length, thereby controlling Good pressure.

In this embodiment, the test box assembly 1 includes a box body 11 , and the box body 11 Both ends are provided with carrying handles 12, and the upper end of the box body 11 is provided with an upper cover 13. The upper cover and the box body 11 are connected and conductive using locks 14 to form a test shielded cavity 3. A shielded test environment. The front end of the box body 11 is provided with a front door rectangular opening 15. The front door rectangular opening 15 is large in space and can be used for a variety of communication products to enter the inside of the test box assembly 1. The periphery of the front door rectangular opening 15 A rectangular annular groove 16 is provided. Protective gratings 17 are provided on both sides of the front end of the box body 11. The protective gratings 17 can prevent injuries caused by misoperation by workers. The rear end of the box body 11 A communication filter interface 18 and several radio frequency interfaces 19 are provided. The communication filter interface 18 and the radio frequency interface 19 both extend into the test shielding cavity 3. The communication filter interface 18 includes a DB9 interface. , RJ45 interface, USB interface, etc. Each interface adopts EMI filter processing circuit design, and its isolation is greater than 80dB in the communication frequency band of 800MHz~6GHz.

In this embodiment, the electronically controlled bottom cavity 2 includes a top plate 21, and the push-pull driving device 8 includes two cylinder mounting seats 22, a driving cylinder 23, a push-pull connection block 24 and two guide rods 25. Two The cylinder mounting seats 22 are respectively installed at the front and rear ends under the top plate 21. The driving cylinder 23 is installed between the two cylinder mounting seats 22. The two guide rods 25 are symmetrically installed on the driving cylinder. On both sides of the cylinder 23, the push-pull connection block 24 is connected to the drive cylinder 23, and the two guide rods 25 and the push-pull connection block 24 are connected to the lower end of the front door assembly 7. This design will The structure of the driving cylinder 23 plus two guide rods 25 makes the front door assembly 7 enter and exit smoothly, and is suitable for use with automation. The driving cylinder is in the electronically controlled bottom cavity 2 and does not affect the internal testing environment of the test shielding cavity 3.

In this embodiment, the front door assembly 7 includes a front door panel 71 , a front door pressure plate 72 and a movable extraction plate 73 . A rectangular annular groove 74 is provided on the back of the front door panel 71 . The inner periphery of the rectangular annular groove 74 is A rectangular sealing block 75 is formed that matches the rectangular opening 15 of the front door. The periphery of the rectangular annular groove 74 forms a rectangular annular block 76 with the rectangular annular groove 16. The rectangular annular groove 16 and the rectangular annular groove 16 Conductive cotton is attached to the inside of the annular groove 274. A double-layer groove design is adopted here, and conductive cotton is attached to enable the test box assembly 1 to achieve overall airtight conductive continuity and ensure the isolation of the test box assembly 1; as described The front two ends of the front door panel 71 are provided with hook blocks 711. The upper end of the front door pressure plate 72 is fixed between the two hook blocks 711, and elastic pressure plates are installed on both sides of the upper end of the front door pressure plate 72. wheel 721, and the two elastic pressure wheels 721 are respectively located in the two hook blocks 711, so The middle of the lower end of the front door pressure plate 72 is connected to the push-pull connection block 24, and both sides of the lower end of the front door pressure plate 72 are connected to the two guide rods 25 respectively; the movable pumping plate 73 is fixed to the rectangular seal At the bottom of the block 75 , moving slide rails 731 are provided at both ends of the bottom of the movable pumping plate 73 , and slide rail blocks 41 matching the moving slide rails 731 are provided at both ends of the test fixture bottom plate 4 .

In this embodiment, the test carrier module 9 includes a download board 91, a main printed circuit board 92 and a pin point alignment template 93. The download board 91 is installed on the movable pumping plate 73. Both ends of the plate 91 are provided with strip holes and are fixed on the movable pumping plate 73 through bolts. This design can fine-tune the position of the download plate 91 on the movable pumping plate 73 through the positions of the bolts installed in the strip holes. , and the test carrier module 9 needs to be replaced for different products, it can be replaced simply by undoing the bolts, which is convenient and fast. The main printed circuit board 92 is installed on the download board 91, and the pin points are The bit template 93 is installed on the main printed circuit board 92. The pin point alignment template 93 is provided with a plurality of RF pin through holes 94. The 5G communication product main board is installed on the pin point alignment template 93, and the 5G communication product main board The RF pins pass through the RF pin through holes 94 to communicate with the main printed circuit board 92 .

In this embodiment, the plug-in and pull-out 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 plug-in and pull-out mounting base 56, a fine adjustment base 57 and an RJ45 connector 58 , the motor mounting plate 51 is installed on the rear side of the test fixture bottom plate 4, the driving motor 52 is installed in the middle of the motor mounting plate 51, and two linear guide rails 53 are symmetrically installed on the motor mounting plate 51. On both sides, the moving block 55 is adapted to be installed between the two linear guide rails 53, and the moving block 55 is connected to the driving motor 52 through the driving rod 54, and the plug-in mounting base 56 is installed on the The front end of the moving block 55, the fine-tuning seat 57 is installed on the top of the plug-in mounting seat 56, the RJ45 connector 58 is installed on the top of the fine-tuning seat 57, and is inserted under the drive of the driving motor 52 The connector of the motherboard of 5G communication products.

In this embodiment, the plug-in mounting base 56 includes a base plate and a longitudinal plate. Both the base plate and the longitudinal plate are provided with waist-shaped countersunk holes 561 . The moving block 55 and the fine-tuning seat 57 Both are provided with threaded holes. The plug-in and pull-out mounting seats 56 pass through the waist-shaped countersunk holes 561 of the base plate with bolts and then are fixed on the threaded holes. The fine-adjusting seats 57 pass through the waist of the longitudinal plate with bolts. The countersunk hole 5611 is then fixed on the threaded hole. This design allows the upper, lower, left, and right positions of the RJ45 connector 58 to be fine-tuned by fixing the waist-type countersunk hole 561 in the threaded hole, thereby also adapting to products of different models and sizes.

In this embodiment, the box body 11 includes a box frame made of aluminum plates that are sealed and spliced together. The outer layer of the frame is provided with a shielding layer and a wave-absorbing material layer in sequence. This design structure effectively improves environmental interference and ensures that the isolation of the box body 11 reaches greater than 80dB when the communication frequency band is 800MHz-6GHz; as described Positioning bottom plates 10 are provided at both ends of the bottom of the box body 11 .

In this embodiment, a profiled plate 26 is also provided at the lower end of the top plate 21. A control panel 27 and a solenoid valve 28 are installed on the profiled plate 26. One end of the top plate 21 is provided with a pressure regulating valve 29. The rear end of the top plate 21 is provided with a DB25 female connector 210 extending into the test shielding cavity 3 .

In this embodiment, a start button is provided on the front of the box body 11. The start button is electrically connected to the drive cylinder through a control board. A DC 24V power connector is provided on the lower end of the front of the box body 11. and power button.

The working flow of the present invention is: press the front start button to start the present invention, 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, and place the device product to be tested on the test carrier On the module 9, the test carrier module 9 is driven by the drive cylinder 23 and the guide rod 25 and is gently sent into the interior of the test box assembly 1. When the front door panel 71 is attached to the front end of the box body 11, the interior is moved from the rear two sides. A thin cylinder 62 pushes through the lower pressure plate 65 to press down the device product under test. The drive motor 52 drives the RJ45 connector 58 to insert the device product under test, and is electrically connected to the back-end communication filter interface 18 through the RJ45 connector 58. Connect the electronic control signals required for the device under test to the controlling computer through the communication filter interface 18. When starting the test work, the computer control instrument connects to the antenna probe to transmit and receive signals to complete the entire communication with the device under test. Test for automatic collection of radio frequency index data. When the test is completed, the drive motor 52 drives the plug-in and pull-out mechanism 5 times back to the origin. The internal lower pressure plate 65 is retracted by the rear thin cylinder 62 and passes through the arc inclined rail groove 641 and the linear vertical guide groove. 632 cooperates with each other to constrain the rise, and the bottom drive cylinder 23 drives the front door assembly 7 to separate from the test box assembly 1 again, and then the staff removes the tested device product from the test carrier module 9, and the entire testing process ends.

Therefore, the present invention is a hardware automated auxiliary measurement device that can repeatedly perform consistent radio frequency electric field spatial radiation measurements. It is used to simulate the radio frequency index situation close to the actual communication between the user and the communication base station, and better reflects the characteristics of the tested mobile phone. Whether the radio frequency index meets the factory radio frequency index inspection requirements.

In summary, the present invention adopts a special box structure, high-performance absorbing materials and a stable test vehicle, so that the box has good shielding performance in the communication frequency band (800MHz-6GHz), ensuring product testing in an interference-free environment. environment. Better reflect whether the RF indicators of the tested product meet the factory requirements Radio frequency index inspection requirements.

The invention is applied in the technical field of network equipment design and manufacturing.

Although the embodiments of the present invention are described in practical solutions, they do not limit the meaning of the present invention. For those skilled in the art, modifications to the embodiments and combinations with other solutions will be obvious based on this description. .

Claims

A 5G communication product mainboard testing device, characterized in that: it includes a test box assembly (1), and an electronically controlled bottom cavity (2) is provided in the test box assembly (1) and located in the electronically controlled bottom cavity The test shielding cavity (3) of (2), the bottom of the test shielding cavity (3) is provided with a test fixture bottom plate (4), and the rear side of the test fixture bottom plate (4) is provided with a plug-in and pull-out mechanism (5 ), a chute pressing mechanism (6) is provided above the bottom plate (4) of the test fixture, a front door assembly (7) is provided at the front end of the test box assembly (1), and the electronically controlled bottom cavity (2 ) is provided with a push-pull driving device (8) connected to the front door assembly (7). A test carrier module (9) is fixed at the rear end of the front door assembly (7). The front door assembly (7) Driven by the push-pull drive device (8), it is sealed and fitted with the test box assembly (1), and the test carrier module (9) follows the front door assembly (7) and extends into the test shielding cavity. body (3), and at this time, the 5G communication product motherboard placed in the test carrier module (9) is located directly below the chute pressing mechanism (6), and the plug-in and pull-out mechanism (5) is located Directly behind the main board of the 5G communication product; the chute pressing mechanism (6) includes a cylinder mounting plate (61), two thin cylinders (62), two fixed plates (63), a U-shaped moving plate (64) and Lower the pressing plate (65), the cylinder mounting plate (61) is installed between the two side walls of the upper end of the test box assembly (1), and two thin cylinders (62) are installed on both sides of the cylinder mounting plate (61). On the other side, the two fixed plates (63) are respectively installed on both side walls of the upper end of the test box assembly (1). Straight groove guide rails (631) are provided on the inside of the fixed plates (63). The U-shaped Both ends of the moving plate (64) are adapted to be installed in the two straight groove guide rails (631), and the rear end of the U-shaped moving plate (64) is connected to the two thin cylinders (62), The straight groove guide rail (631) is provided with straight vertical guide rail grooves (632) at the front and rear ends, and the U-shaped moving plate (64) is provided with arc-shaped inclined rail grooves (641) at the front and rear ends. Driven wheels (66) are provided around the pressure plate (65), and the driven wheels (66) are adapted to the linear vertical guide groove (632) and the arc inclined rail groove (641), and all 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 pressure plate (65) is provided with several pressure columns (67). ; A linear transverse guide rail (642) and a guide wheel (642) adapted to the linear transverse guide rail (642) are provided between the two arc-shaped inclined rail grooves (641) located at the same end of the U-shaped moving plate (64). 68), the guide wheel (68) is fixed in the straight groove guide rail (631) through pins.
A 5G communication product mainboard testing device according to claim 1, characterized in that: the test box assembly (1) includes a box body (11), and both ends of the box body (11) are provided with There is a carrying handle (12), and an upper cover (13) is provided at the upper end of the box body (11). The upper cover and the box body (11) are connected and closed using a lock (14). The front end of the box body (11) is provided with a rectangular front door opening (15). The periphery of the front door rectangular opening (15) is provided with a rectangular annular groove (16). Both sides of the front end of the box body (11) are A protective grating (17) is provided, and a communication filter interface (18) is provided at the rear end of the box body (11).
A 5G communication product mainboard testing device according to claim 2, characterized in that: the electronically controlled bottom cavity (2) includes a top plate (21), and the push-pull driving device (8) includes two cylinders installed seat (22), driving cylinder (23), push-pull connecting block (24) and two guide rods (25). The two cylinder mounting seats (22) are respectively installed at the front and rear ends under the top plate (21). , the driving cylinder (23) is installed between the two cylinder mounting seats (22), the two guide rods (25) are symmetrically installed on both sides of the driving cylinder (23), and the push-pull connection The block (24) is connected to the driving cylinder (23), and the two guide rods (25) and the push-pull connecting block (24) are connected to the lower end of the front door assembly (7).
A 5G communication product mainboard testing device according to claim 3, characterized in that: the front door assembly (7) includes a front door panel (71), a front door pressure plate (72) and a movable extraction plate (73). The back side of the door panel (71) is provided with a rectangular annular groove (74), and the inner periphery of the rectangular annular groove (74) forms a rectangular sealing block (75) that matches the rectangular opening (15) of the front door. The periphery of the second annular groove (74) forms a rectangular annular block (76) with the first rectangular annular groove (16), and the interiors of the first rectangular annular groove (16) and the second rectangular annular groove (74) are attached There is conductive cotton, and hook blocks (711) are provided at both ends of the front door panel (71). The upper end of the front door pressure plate (72) is fixed between the two hook blocks (711), and the upper end of the front door pressure plate (72) is fixed between the two hook blocks (711). Elastic pressure wheels (721) are installed on both sides of the upper end of the front door pressure plate (72). The two elastic pressure wheels (721) are respectively located in the two hook blocks (711). The front door pressure plate (721) The middle of the lower end of the front door pressure plate (72) is connected to the push-pull connecting block (24), and both sides of the lower end of the front door pressure plate (72) are connected to the two guide rods (25) respectively; the movable pumping plate (73) Fixed to the bottom of the rectangular sealing block (75), the two ends of the bottom of the movable pumping plate (73) are provided with moving slide rails (731), and the two ends of the test fixture bottom plate (4) are provided with the moving slide rails (731). The slide rail slider (41) matches the slide rail (731).
A 5G communication product mainboard testing device according to claim 4, characterized in that: The test carrier module (9) includes a download board (91), a main printed circuit board (92) and a pin point alignment template (93). The download board (91) is installed on the movable pumping board (73) on the main printed circuit board (92), the pin point alignment template (93) is installed on the main printed circuit board (92), and the pin point alignment template (93) is installed on the download board (91). The bit template (93) is provided with several RF pin through holes (94). The 5G communication product mainboard is installed on the pin point alignment template (93), and the RF pins on the 5G communication product main board pass through the RF pin through holes (94). Connected to the main printed circuit board (92).
A 5G communication product mainboard testing device according to claim 5, characterized in that: the plug-in and pull-out mechanism (5) includes a motor mounting plate (51), a driving motor (52), two linear guide rails (53), Driving rod (54), moving block (55), plug-in mounting seat (56), fine-tuning seat (57) and RJ45 connector (58), the motor mounting plate (51) is installed on the test fixture bottom plate (4 ), the drive motor (52) is installed in the middle of the motor mounting plate (51), and two linear guide rails (53) are symmetrically installed on both sides of the motor mounting plate (51). The block (55) is adapted to be installed between the two linear guide rails (53), and the moving block (55) is connected to the driving motor (52) through the driving rod (54), and the plug-in mounting base (55) 56) is installed on the front end of the moving block (55), the fine-tuning seat (57) is installed on the top of the plug-in mounting seat (56), and the RJ45 connector (58) is installed on the fine-tuning seat (56). 57), and insert the connector of the 5G communication product motherboard driven by the drive motor (52).
A 5G communication product mainboard testing device according to claim 6, characterized in that: the plug-in mounting base (56) includes a base plate and a longitudinal plate, and both the base plate and the longitudinal plate are provided with waist-shaped The countersunk hole (561), the moving block (55) and the fine-tuning seat (57) are both provided with threaded holes, and the plug-in mounting seat (56) passes through the waist-shaped countersunk head of the base plate through bolts. The fine adjustment seat (57) is fixed on the threaded hole after passing through the waist-shaped countersunk hole (561) of the longitudinal plate through bolts.
A 5G communication product motherboard testing device according to claim 2, characterized in that: the box body (11) includes a box frame made of aluminum plates sealed and spliced, and the outer layer of the box frame is sequentially provided with shielding layer and wave-absorbing material layer; positioning bottom plates (10) are provided at both ends of the bottom of the box body (11).
A 5G communication product mainboard testing device according to claim 3, characterized in that: The lower end of the top plate (21) is also provided with a profiled plate (26). A control panel (27) and a solenoid valve (28) are installed on the profiled plate (26). One end of the top plate (21) is provided with a Pressure regulating valve (29), the rear end of the top plate (21) is provided with a DB25 female head (210) that extends into the test shielding cavity (3).