CN217931938U

CN217931938U - Test fixture of wireless image transmission standard module

Info

Publication number: CN217931938U
Application number: CN202221868748.XU
Authority: CN
Inventors: 潘礼
Original assignee: Hangzhou Potomac Technology Co ltd
Current assignee: Hangzhou Potomac Technology Co ltd
Priority date: 2022-03-04
Filing date: 2022-07-20
Publication date: 2022-11-29
Anticipated expiration: 2032-07-20

Abstract

The utility model belongs to the technical field of the electron, a wireless picture passes test fixture of standard module is disclosed, place the circuit in the box and survey the board, the case lid upper surface has the thing platform of carrying, the platform is placed to the chip that has on the thing platform, the chip is placed and is placed the test chip on the platform, the thing platform top has the briquetting, the briquetting is pushed down in the recess of the bottom surface of back test chip place briquetting, case lid back thing platform below has the test bottom plate, the test thimble has on the test bottom plate, the surface that the thing platform was stretched out to the test thimble from the case lid, the chip is placed and is had the through-hole on the platform, place the platform when the briquetting chip and push down the back, the through-hole that the platform was placed to the test thimble stretches out from the chip, aim at every pin of test chip after the test thimble stretches out, thereby survey the switch-on with the circuit test board in test chip and the box. The test tool can comprehensively test the functional parameters of the LC6600 data transmission module, the test process is convenient and fast, the chip is not easy to damage, the test time is saved, and the working efficiency is improved.

Description

Test fixture of wireless image transmission standard module

Technical Field

The utility model belongs to the technical field of the electron, especially, relate to a test fixture of wireless picture biography standard module.

Background

The wireless image transmission module is a set of remote wireless data transmission standard module, is suitable for the application fields of security monitoring, smart cities, robots, special communication, intelligent manufacturing, smart agriculture, intelligent equipment and the like, and is very wide in application. Before products leave factory or are used, the module circuit board is required to carry out basic function tests, such as startup, short circuit, open circuit and the like. The existing testing method is to weld the chip in the PCB testing board, and then take the chip down after the test is finished, the testing mode is time-consuming and labor-consuming, the pins are easy to damage in the welding process, and the method is not suitable for a large amount of testing work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a test fixture of wireless image transmission standard module to solve current wireless image transmission standard module and lack test fixture, the welding test is wasted time and energy and the technical problem of fragile chip.

In order to achieve the above object, the utility model discloses a wireless picture passes test fixture's specific technical scheme as follows:

the utility model provides a test fixture of wireless picture standard module, includes the box, the case lid has on the box, place the circuit test board in the box, the case lid upper surface has the objective table, the chip has on the objective table and places the platform, the chip places and places the test chip on the platform, the objective table top has the briquetting, the bottom surface of briquetting just has a recess to the position of testing the chip, the recess size matches with the chip size, the briquetting pushes down back test chip and arranges in the recess, the circuit test board includes the test bottom plate of case lid back objective table below, the last test thimble that has of test bottom plate, the test thimble stretches out the surface of objective table in from the case lid, the chip places and has the through-hole on the platform, test thimble aligns with the through-hole one by one, the chip places the platform below and has the spring stand, after the briquetting pushes down, the chip places the platform and is pushed down, and the test thimble stretches out from the through-hole of chip placement platform, and the test thimble stretches out every pin of aligning of test chip to test chip is put through-through with the circuit in the box.

Further, the circuit test board is connected with a power supply and a computer.

Further, the pressing block is connected with a pressing mechanism, the pressing mechanism is used for pressing and lifting the pressing block 4, and the pressing mechanism is fixed on a support beside the objective table.

Furthermore, the pressing mechanism is provided with a fixing piece which is fixedly arranged on the bracket, the lower end of the fixing piece is provided with a hollow round sleeve, and the connecting shaft penetrates through the round sleeve and can move up and down along the vertical direction of the round sleeve; the lower end of the connecting shaft is fixedly connected with the pressing block, and the upper end of the connecting shaft is connected with the driving shaft through a connecting piece; the driving shaft is of an L-shaped right-angle rod structure, one end of the connecting piece is connected with the upper end shaft of the connecting shaft through a pin shaft, and the other end of the connecting piece is connected with the top angle shaft of the right-angle rod of the driving shaft through a pin shaft; the top end of the long rod of the driving shaft is connected with a handle, and the top end of the short rod of the driving shaft is connected with the upper end shaft of the fixing piece; when the handle is lifted, the driving shaft is turned over to drive the connecting shaft to move downwards, so that the pressing plate 4 is pressed on the chip placing table.

Further, the test chip is a wireless image transmission standard module, the wireless image transmission standard module is provided with 71 pins, the left side and the right side of the test bottom plate are respectively provided with 25 pins, and the upper end of the test bottom plate is provided with 21 pins; the left side and the right side of the corresponding chip placing table are respectively provided with 25 through holes, the upper end of the chip placing table is provided with 21 through holes, the positions of the through holes correspond to the positions of the pins of the testing bottom plate one by one, and the testing ejector pins are welded on the 71 pins of the testing bottom plate.

Furthermore, an interface slot is formed in one side of the box body, and a power supply interface, a USB interface, a network cable interface and a debugging serial port are arranged at the position of the interface slot.

Furthermore, a power indicator and a module indicator are arranged at the front end of the box body, and a power switch is arranged on the box cover.

Further, the circuit test board comprises a test bottom board U1, a base test circuit board U3 and a base external interface U2; the base external interface U2 is connected with a computer, a network switch and a power supply, the base test circuit board U3 is connected with the base external interface U2, and the test bottom board U1 is connected with the base test circuit board U3.

Further, the external interface U2 of the base comprises a power interface, a USB interface, a network cable interface, a debugging serial port, a power indicator lamp, a module indicator lamp and a 12V power line output interface at the outer shell of the box body; the base test circuit board U3 comprises a USB data line interface, a network cable interface, a debugging serial port, a 12V power input interface, a 4.0V power output interface, a 1.8V power line output interface and a data interface; the test bottom plate U1 comprises a 4.0V power supply input interface, a 1.8V power supply line input interface and a data interface; the power interface of the base external interface U2 is connected with a power adapter, the power switch is connected with the power interface, the inside of the USB interface of the base external interface U2 is connected with the USB interface of the base test circuit board U3 through a USB shielded wire, and the outside of the USB interface is connected with a computer; the debugging serial port of the base external interface U2 is internally connected with a debugging serial port of the base test circuit board U3 through a debugging serial port line, the external of the debugging serial port is connected with a computer, and a 12V power line output interface of the base external interface U2 is connected with a 12V power supply input interface of the base test circuit board U3; the data interface of the base test circuit board U3 is connected with the data interface of the test bottom board U1, and the 1.8V power output interface and the 4.0V power output interface of the base test circuit board U3 are respectively connected with the 1.8V power input interface and the 4.0V power input interface of the test bottom board U1.

The utility model discloses a test fixture of wireless picture biography standard module has following advantage: the test circuit and the data connection interface developed by the tool aiming at the LC6600 data transmission module can comprehensively test the functional parameters of the LC6600 data transmission module, the tool adopts the thimble to connect the pin of the test chip, the chip does not need to be tested after being welded, the test can be taken down after the test is finished, the test process is convenient and fast, the chip is not easy to damage, the test time is saved, and the working efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a test fixture of a wireless image transmission standard module according to the present invention;

fig. 2 is a schematic structural view of a test tool for a wireless image transmission standard module according to the present invention in a use state;

fig. 3 is a schematic structural diagram of an LC6600 data transmission module chip of the present invention;

FIG. 4 is a schematic view of the through hole structure of the chip placement table of the present invention;

FIG. 5 is a schematic diagram of a circuit testing board module according to the present invention;

the notation in the figure is: 1. a box body; 2. a box cover; 3. an object stage; 31. a chip placement table; 311. a spring post; 312. a through hole; 4. briquetting; 5. a pressing mechanism; 51. a fixing member; 52. a connecting shaft; 53. a connecting member; 54. a drive shaft; 55. a handle; 511. a circular sleeve; 6. a support; 7. slotting the interface; 71. a power interface; 72. a USB interface; 73. a network cable interface; 74. debugging a serial port; 75. a power indicator light; 76. and a module indicator light.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings.

The utility model discloses a test fixture of wireless map biography standard module carries out the test fixture of development to LC6600 data transmission module, and this chip has integrateed main functions such as data transmission, and is with low costs, the sexual valence relative altitude, can satisfy the demand of products such as customer development point pair many products, video monitoring, consequently uses very extensively, all need carry out functional test before the chip uses, the utility model discloses a one set of test fixture to this chip development.

As shown in fig. 1, the test fixture for the wireless image transmission standard module comprises a box body 1, a box cover 2 is arranged on the box body 1, a circuit test board is placed in the box body 1, a carrying platform 3 is arranged on the upper surface of the box cover 2, a chip placing platform 31 is arranged on the carrying platform 3, a test chip is placed on the chip placing platform 31, a pressing block 4 is arranged above the carrying platform 3, a groove is formed in the position, right opposite to the test chip, of the bottom surface of the pressing block 4, the size of the groove is matched with the size of the chip, the test chip is placed in the groove after the pressing block 4 is pressed down, and the effect of fixing the test chip is achieved. The pressing block 4 is connected with a pressing mechanism 5, the pressing mechanism 5 is used for pressing and lifting the pressing block 4, and the pressing mechanism 5 is fixed on a support 6 beside the objective table 3. The holder 6 is used to fix the pressing mechanism 5.

As shown in fig. 2, the pressing mechanism 5 may perform a pressing operation on the pressing block 4 in a pneumatic or manual manner. In this embodiment, the pressing mechanism 5 is manually operated, the pressing mechanism 5 has a fixing member 51, the fixing member 51 is fixedly mounted on the bracket 6, the fixing member 51 has a hollow circular sleeve 511 at the lower end, and the connecting shaft 52 passes through the circular sleeve 511 and can move up and down along the vertical direction of the circular sleeve 511. The lower end of the connecting shaft 52 is fixedly connected with the pressing block 4, and the upper end is connected with the driving shaft 54 through a connecting piece 53. The driving shaft 54 is of an L-shaped right-angle rod structure, one end of the connecting piece 53 is connected with the upper end shaft of the connecting shaft 52 through a pin shaft, and the other end of the connecting piece is connected with the top angle shaft of the right-angle rod of the driving shaft 54 through a pin shaft. The long rod top end of the driving shaft 54 is connected with the handle 55, and the short rod top end of the driving shaft 54 is connected with the upper end shaft of the fixing member 51. When the handle 55 is lifted, the driving shaft 54 is turned over, and the connecting shaft 52 is moved downward, thereby pressing the pressing plate 4 against the chip placement table 31.

A testing bottom plate is arranged below the object stage 3 on the back of the box cover 2 and is electrically connected with a circuit testing board in the box body. The test base plate is provided with test thimbles, the test thimbles extend out of the box cover 2 to the surface of the object stage 3, the chip placing table 31 is provided with through holes 312, the test thimbles are aligned with the through holes 312 one by one, spring upright columns 311 are arranged below the chip placing table 31, the spring upright columns 311 are fixedly installed on the object stage 3, test chips are placed on the chip placing table 31, after the pressing block 4 is pressed down, the test chips are sunk into grooves in the bottom surface of the pressing block 4 to be fixed, meanwhile, the chip placing table 31 is pressed down, the test thimbles extend out of the through holes 312 of the chip placing table 31, and after the test thimbles extend out, each pin of the test chips is aligned with each pin of the test chips, so that the test chips are communicated with the test chips in the box body 1. The functional parameters of the test chip can be measured after the test chip is connected with the power supply and the computer.

As shown in fig. 3, the wireless image transmission standard module tested by the test tool has 71 pins, 25 pins are respectively arranged on the left side and the right side of the test bottom plate according to the module packaging structure, and 21 pins are arranged at the upper end of the test bottom plate. As shown in fig. 4, 25 through holes 312 are provided on the left and right sides of the corresponding

chip placement stage

31, 21 through holes 312 are provided on the upper end, the positions of the through holes 312 correspond to the positions of the pins of the test board one by one, and the test pins are soldered to 71 pins of the test board.

The box body 1 is provided with an interface slot 7 on one side, the number of the interfaces can be set according to the needs in the interface slot 7, the connection between the test circuit and the external device is convenient, and a power interface 71, a USB interface 72, a network cable interface 73 and a debugging serial port 74 are arranged at the interface slot 7. The front end of the box body 1 is provided with a power indicator lamp 75 and a module indicator lamp 76. Power indicator light 75 is used to indicate the power on status and module indicator light 76 is used to indicate the module on status. The box cover 2 is provided with a power switch 8. The power switch 8 is used for connecting a power supply of the test tool.

As shown in fig. 5, which is a block diagram of a circuit testing board module, the circuit testing board in the box body includes a testing base board U1, a base testing circuit board U3, and a base external interface U2. The base external interface U2 is connected with the computer, the network switch and the power supply, the base test circuit board U3 is connected with the base external interface U2, and the test bottom board U1 is connected with the base test circuit board U3.

The base external interface U2 includes a power interface 71 at the case housing, a USB interface 72, a network cable interface 73, a debugging serial port 74, a power indicator lamp 75, a module indicator lamp 76, and a 12V power line output interface. The base test circuit board U3 comprises a USB data line interface, a network cable interface, a debugging serial port, a 12V power input interface, a 4.0V power output interface, a 1.8V power line output interface and a data interface. The test baseboard U1 comprises a 4.0V power supply input interface, a 1.8V power supply line input interface and a data interface. The power interface 71 of the base external interface U2 is connected to a power adapter to access a power supply required by the test fixture. The power switch 8 is connected to the power interface 71 and is used for turning on the power supply during testing. The USB interface 72 of the base external interface U2 is internally connected with the USB interface of the base test circuit board U3 through a USB shielded wire, and the USB interface 72 is externally connected with a computer to realize the data connection of the base test circuit board U3 and the computer. The network cable interface 73 of the base external interface U2 is connected with the network cable interface of the base test circuit board U3 through a network cable, and the outside of the network cable interface 73 is connected with a network switch through the network cable, so that the networking of the test tool is realized. The debugging serial port 74 of the base external interface U2 is connected with the debugging serial port of the base test circuit board U3 through a debugging serial port line, and the external part of the debugging serial port 74 is connected with a computer, so that the parameter setting of the computer to a test chip is realized. The 12V power line output interface of the base external interface U2 is connected with the 12V power input interface of the base test circuit board U3, so that power supply of the base test circuit board U3 is realized. The data interface of the base test circuit board U3 is connected with the data interface of the test bottom board U1, and data communication between the test bottom board U1 and the base test circuit board U3 is achieved. The 1.8V power output interface and the 4.0V power output interface of the base test circuit board U3 are respectively connected with the 1.8V power input interface and the 4.0V power input interface of the test bottom plate U1, so that power supply of the test bottom plate U1 is realized.

When in use, the wireless image transmission standard module is placed on the chip placing table 31, and the power supply is inserted into the power supply interface 71; one end of the USB data line is inserted into the USB interface 72, and the other end is inserted into the computer USB interface; one end of the network cable is inserted into the network cable interface 73, and the other end of the network cable is inserted into the network switch; one end of the serial port data line is inserted into the debugging serial port 74, and the other end is inserted into the computer serial port. After the handle 55 of the pressing mechanism 5 is pulled up and pressed down, the wireless image transmission standard module is placed in the groove for fixation, meanwhile, the pressing block 4 presses the chip placing table 31 downwards, and the thimble of the testing bottom plate at the bottom of the chip placing table 31 is ejected out of the through hole 312 to be connected with each pin of the wireless image transmission standard module. At this time, the power switch 8 is pressed, the power indicator lamp 75 is turned on, the test is started, and the module indicator lamp 76 is turned on if the module connection is normal. Module performance and parameters are viewed by the computer.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. A test tool for a wireless image transmission standard module comprises a box body (1), wherein a box cover (2) is arranged on the box body (1), a circuit test board is placed in the box body (1), a carrying platform (3) is arranged on the upper surface of the box cover (2), the object stage (3) is provided with a chip placing table (31), the chip placing table (31) is used for placing a test chip, a pressing block (4) is arranged above the objective table (3), a groove is arranged at the position of the bottom surface of the pressing block (4) opposite to the test chip, the size of the groove is matched with that of the chip, the test chip is arranged in the groove after the pressing block (4) is pressed down, it is characterized in that the circuit test board comprises a test bottom plate below a back object stage (3) of a box cover (2), the testing bottom plate is provided with a testing thimble which extends out of the box cover (2) to the surface of the objective table (3), the chip placing table (31) is provided with through holes (312), the testing thimbles are aligned with the through holes (312) one by one, a spring upright post (311) is arranged below the chip placing table (31), after the pressing block (4) is pressed down, the chip placing table (31) is pressed down, the testing ejector pins extend out of the through holes (312) of the chip placing table (31), and the testing ejector pins are aligned to each pin of the testing chip after extending out, so that the testing chip is connected with the circuit testing board in the box body (1).

2. The tool for testing the wireless image-transfer standard module according to claim 1, wherein the circuit testing board is connected with a power supply and a computer.

3. The test tool of the wireless image transmission standard module according to claim 1, wherein the pressing block (4) is connected with a pressing mechanism (5), the pressing mechanism (5) is used for pressing and lifting the pressing block (4), and the pressing mechanism (5) is fixed on a bracket (6) beside the object stage (3).

4. The test tool for the wireless image transmission standard module according to claim 3, wherein the pressing mechanism (5) is provided with a fixing piece (51), the fixing piece (51) is fixedly installed on the bracket (6), the lower end of the fixing piece (51) is provided with a hollow round sleeve (511), and the connecting shaft (52) penetrates through the round sleeve (511) and can move up and down along the vertical direction of the round sleeve (511); the lower end of the connecting shaft (52) is fixedly connected with the pressing block (4), and the upper end of the connecting shaft is connected with the driving shaft (54) through a connecting piece (53); the driving shaft (54) is of an L-shaped right-angle rod structure, one end of the connecting piece (53) is connected with the upper end shaft of the connecting shaft (52) through a pin shaft, and the other end of the connecting piece is connected with the top angle shaft of the right-angle rod of the driving shaft (54) through a pin shaft; the top end of a long rod of the driving shaft (54) is connected with a handle (55), and the top end of a short rod of the driving shaft (54) is connected with the upper end shaft of the fixing piece (51); when the handle (55) is lifted, the driving shaft (54) is turned over to drive the connecting shaft (52) to move downwards, so that the pressing block (4) is pressed on the chip placing table (31).

5. The test tool of the wireless image transmission standard module according to claim 1, wherein the test chip is the wireless image transmission standard module, the wireless image transmission standard module has (71) pins, the left side and the right side of the test bottom plate respectively have (25) pins, and the upper end of the test bottom plate has (21) pins; the left side and the right side of the corresponding chip placing table (31) are respectively provided with 25 through holes (312), the upper end of the chip placing table is provided with (21) through holes (312), the positions of the through holes (312) correspond to the positions of pins of the test bottom plate one by one, and the test thimbles are welded on (71) pins of the test bottom plate.

6. The test tool of the wireless image transmission standard module according to claim 1, wherein an interface slot (7) is formed in one side of the box body (1), and a power interface (71), a USB interface (72), a network cable interface (73) and a debugging serial port (74) are arranged at the interface slot (7).

7. The test tool of the wireless map transmission standard module according to claim 1, wherein a power indicator (75) and a module indicator (76) are arranged at the front end of the box body (1), and a power switch (8) is arranged on the box cover (2).

8. The tool for testing the wireless image transmission standard module according to claim 7, wherein the circuit test board comprises a test base plate U1, a base test circuit board U3 and a base external interface U2; the base external interface U2 is connected with a computer, a network switch and a power supply, the base test circuit board U3 is connected with the base external interface U2, and the test bottom board U1 is connected with the base test circuit board U3.

9. The test tool of the wireless image transmission standard module according to claim 8, wherein the base external interface U2 comprises a power interface (71) at a case shell, a USB interface (72), a network cable interface (73), a debugging serial port (74), a power indicator lamp (75), a module indicator lamp (76) and a 12V power line output interface; the base test circuit board U3 comprises a USB data line interface, a network cable interface, a debugging serial port, a 12V power input interface, a 4.0V power output interface, a 1.8V power line output interface and a data interface; the test bottom plate U1 comprises a 4.0V power supply input interface, a 1.8V power supply line input interface and a data interface; the power interface (71) of the base external interface U2 is connected with a power adapter, the power switch (8) is connected with the power interface (71), the inside of the USB interface (72) of the base external interface U2 is connected with the USB interface of the base test circuit board U3 through a USB shielded wire, and the outside of the USB interface (72) is connected with a computer; the inside of a network cable interface (73) of the base external interface U2 is connected with a network cable interface of the base test circuit board U3 through a network cable, the outside of the network cable interface (73) is connected with a network switch through a network cable, the inside of a debugging serial port (74) of the base external interface U2 is connected with a debugging serial port of the base test circuit board U3 through a debugging serial port line, the outside of the debugging serial port (74) is connected with a computer, and a 12V power line output interface of the base external interface U2 is connected with a 12V power supply input interface of the base test circuit board U3; the data interface of the base test circuit board U3 is connected with the data interface of the test bottom board U1, and the 1.8V power output interface and the 4.0V power output interface of the base test circuit board U3 are respectively connected with the 1.8V power input interface and the 4.0V power input interface of the test bottom board U1.