CN206540977U - Mobile phone motherboard and touch screen continuity test fixture - Google Patents

Abstract

The utility model discloses a mobile phone motherboard and touch-sensitive screen conduction test fixture, the power distribution box comprises an upper box body, lower box, detect the module, go up the faller, faller and locating plate down, faller and locating plate set up side by side under on the box, mobile phone motherboard and touch-sensitive screen two correspond to settle down on faller and locating plate and be connected through the winding displacement between the two, it sets up in the box down to detect the module, it sets up on last box and go up the faller and can move down relatively the faller and press from both sides the connection to with lower faller, then through the contact of the probe on last faller and the lower faller and contact realize switching on of mobile phone motherboard and detection module, it feeds back the test result to the touch-sensitive screen with the demonstration to detect the module to mobile phone motherboard with the. The whole jig is simple in structure and convenient to operate, can realize automatic detection on whether the mobile phone mainboard and the touch screen are conducted or not, is high in detection efficiency, and effectively reduces cost.

Description

Mobile phone motherboard and touch screen continuity test fixture

technical field

The utility model relates to the field of mobile phone testing, in particular to a fixture for testing continuity between a main board of a mobile phone and a touch screen.

Background technique

With the development trend of smart and thin mobile phones, mobile phones are required to be small and light, but also sensitive to touch, clear in display and rich in functions. Therefore, the requirements for mobile phone motherboards are getting higher and higher, and the testing work of mobile phone motherboards is correspondingly higher. The more complicated the test cycle is, the longer it will be. In order to ensure the production quality of mobile phone main boards, it is necessary to perform functional tests on each mobile phone main board, especially at present, the conduction test between the mobile phone main board and the touch screen is generally done manually, and manual testing is time-consuming, inefficient, and expensive. . In recent years, with the continuous increase of labor costs, many processing factories have insufficient recruitment, and are forced to conduct random inspections only on some mobile phone motherboards, resulting in a serious decline in the production quality of mobile phone motherboards.

Therefore, there is an urgent need for a mobile phone main board and touch screen conduction test fixture that can realize the conduction of the mobile phone main board and the touch screen, has a simple structure and is easy to operate, and has high test efficiency and low cost to overcome the above problems.

Utility model content

The purpose of the utility model is to provide a mobile phone main board and touch screen conduction test fixture that can realize automatic testing of the conduction between the main board of the mobile phone and the touch screen, has a simple structure and is easy to operate, and has high test efficiency and low cost.

In order to achieve the above object, the utility model discloses a mobile phone motherboard and touch screen conduction test fixture, including an upper box, a lower box, a detection module, an upper needle plate, a lower needle plate, and a positioning plate. The board and the positioning board are arranged side by side on the lower box body, the main board of the mobile phone and the touch screen are respectively arranged on the lower needle board and the positioning board, and the two are connected by a cable. The group is arranged in the lower box, the upper needle plate is arranged on the upper box and the upper needle plate can move relative to the lower needle plate to be in crimping contact with the lower needle plate, then through the The contact between the probes and contacts on the upper needle plate and the lower needle plate realizes the conduction between the main board of the mobile phone and the detection module, and the detection module guides the main board of the mobile phone and the touch screen. Pass the test and feed back the test results to the touch screen for display.

Compared with the prior art, the mobile phone main board and touch screen conduction test fixture disclosed by the utility model only needs to place the mobile phone main board on the lower needle plate, connect the cable, and then start the device, and the probe and contact The contact of the mobile phone makes the main board of the mobile phone electrically connected with the detection module. Through the detection module, the automatic detection of the conduction between the main board of the mobile phone and the touch screen can be realized. The automatic detection of continuity with the touch screen has high detection efficiency and reduces costs, and the entire jig has a simple structure and is easy to operate.

Preferably, the mobile phone motherboard and touch screen conduction test fixture also includes a controller, the controller is arranged in the upper box or the lower box to control the detection module and the upper needle plate Actions.

Preferably, the mobile phone motherboard and touch screen continuity test fixture further includes a driver connected to the upper needle plate, and the driver drives the upper needle plate to move linearly in the vertical direction.

Preferably, the upper needle board and the lower needle board are correspondingly provided with a first probe and a first contact, and the lower needle board is also provided with a second contact, a USB interface and a probe interface , the main board of the mobile phone and the flat cable are connected through a connector.

Preferably, the connector is arranged at the end of the cable, the connector includes a base and a second probe disposed in the base, the second probe is connected to the second The contacts are corresponding to communicate with the main board of the mobile phone and the cable.

Preferably, the connector further includes a fixed block, a floating block and a spring arranged in the base, the fixed block is fixed on the base, and the floating fast is sleeved on the fixed block and the two are matched, one end of the spring is connected to the base, the other end of the spring is connected to the floating block, and the second probe is placed in the fixed block without beyond the surface of the slider.

Preferably, the connector further includes a positioning boss, and two ends of the floating block are respectively provided with a positioning boss.

Preferably, the connector further includes positioning pins, and the positioning pins are arranged at the edge of the connector to realize accurate placement of the main board of the mobile phone.

Preferably, the lower needle plate is provided with a seating area, the main board of the mobile phone is placed in the seating area, and the shape and size of the seating area match the shape and size of the main board of the mobile phone.

Description of drawings

FIG. 1 is a three-dimensional structural schematic diagram of a mobile phone motherboard and a touch screen conduction test fixture of the present invention.

Fig. 2 is a structural schematic diagram of the main board of the mobile phone of the present invention.

Fig. 3 is a structural schematic diagram of the connection between the main board of the mobile phone and the flat cable of the present invention.

Fig. 4 is the bottom view of the lower needle plate of the utility model.

Fig. 5 is a bottom view of the upper needle plate and the lower needle plate of the utility model after pressing together.

Fig. 6 is a sectional view along the direction A-A in Fig. 5 .

FIG. 7 is a structural schematic diagram of the connector of the present invention.

Figure 8 is a cross-sectional view along the B-B direction in Figure 7.

detailed description

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1 to Fig. 8, the utility model discloses a mobile phone motherboard and touch screen conduction test fixture 100, which is used to detect whether there is normal conduction between the mobile phone motherboard 200 and the mobile phone touch screen (not shown in the figure). Only after the normal connection can the subsequent testing of other functions of the mobile phone motherboard be realized. A mobile phone motherboard and touch screen conduction test fixture 100 of the utility model includes an upper box body 10, a lower box body 20, a detection module (not shown in the figure), an upper needle plate 30, a lower needle plate 40 and a positioning plate 50 The lower needle plate 40 and the positioning plate 50 are arranged side by side on the lower box body 20, the mobile phone main board 200 and the touch screen are respectively arranged on the lower needle plate 40 and the positioning plate 50, and the two are connected by a cable 300, and the detection mode The group is arranged in the lower box body 20, the upper needle plate 30 is arranged on the upper box body 10 and the upper needle plate 30 can move relative to the lower needle plate 40 to be crimped with the lower needle plate 40, then the upper needle plate 30 and the lower needle plate The contact between the probe 60 on the needle board 40 and the contact point 70 realizes the conduction between the mobile phone main board 200 and the detection module, and the detection module performs a conduction test on the mobile phone main board 200 and the touch screen and feeds back the test result to the touch screen for display. Wherein, in order to improve the degree of automation of this jig 100, the utility model mobile phone motherboard and touch screen conduction test jig 100 also includes a controller (not shown in the figure), and the controller is arranged on the upper box body 10 or the lower box body 20 In order to control the action of detection module and upper needle plate 30. The structure and working principle of the controller and the detection module are well known in the art, so they will not be described in detail here, more specifically:

In order to realize the pressing of the upper needle plate 30 and the lower needle plate 40, the mobile phone motherboard and the touch screen conduction test fixture 100 also include a driver 80, the driver 80 is connected with the upper needle plate 30, and the driver 80 drives the upper needle plate 30 in the vertical direction Do linear motion, the moving upper needle plate 30 is pressed or separated from the lower needle plate 40. Specifically, the driver 80 is an air cylinder.

Specifically, the lower needle plate 40 is provided with a placement area 40a, the mobile phone main board 200 is placed in the placement area 40a, and the shape and size of the placement area 40a matches the shape and size of the mobile phone main board 200 . Similarly, the touch screen is placed in the placement area of the positioning board 50 , and one end of the cable 300 is fixed on the positioning board 50 . The other end of the cable 300 is a free end that can be connected to the main board 200 of the mobile phone. Wherein, in order to facilitate the accurate and effective placement of the mobile phone main board 200, the lower needle plate 40 is provided with a positioning pin 41 and a limit pin 42, and the positioning pin 41 is located in the placement area 40a, and the limit pin 42 is located at the edge of the placement area 40a , the positioning pin 41 and the limit pin 42 are used for guiding and limiting when the mobile phone main board 200 is placed, thereby effectively improving the placement efficiency of the mobile phone main board 200 . Correspondingly, the main board 200 of the mobile phone is provided with a positioning hole 201 corresponding to the positioning pin 41 . Further, in order to further improve the efficiency and accuracy when pressing down, the upper needle plate 30 is provided with a pressing down guide pin 31 which acts as a guide, and correspondingly, the lower needle plate 40 is provided with a pressing down guide pin 31. Correspondingly press down the guide hole 43. In this embodiment, in order to prevent damage to the main board 200 of the mobile phone during the pressing process, at least one boss 32 is provided on the upper needle plate 30, and the boss 32 can move elastically relative to the upper needle plate 30, thereby preventing the needle upper plate from being damaged. 30 Too fast movement or too much pressure damages the main board of the mobile phone 200.

Specifically, the upper needle board 30 and the lower needle board 40 are respectively provided with a first probe 61 and a first contact 71, and the lower needle board 40 is also provided with a second contact 72, a USB interface 44 and a probe interface. 45, before pressing, plug the data line first, then when pressing, the first probe 61 is in contact with the first contact 71, through the USB interface 44 and the probe interface 45 to realize the connection between the main board 200 of the mobile phone and the detection module. The conduction of the group and the conduction between the detection module and the touch screen.

Specifically, the main board 200 of the mobile phone and the flat cable 300 are connected through the connector 90 . Wherein, the connector 90 is arranged at the end of the cable 300, and the connector 90 includes a base 91 and a second probe 72 disposed in the base 91, the second probe 72 corresponds to the second contact 72 for communication. Mobile phone motherboard 200 and cable 300.

In order to protect the second probe 72, the second probe 72 is usually accommodated in the base 91 without being exposed. Conduction with the cable 300. Specifically, the connector 90 also includes a fixed block 92, a floating block 93, and a spring 94 disposed in the base 91. The fixed block 92 is fixed on the base 91, and the floating block 93 is sleeved on the fixed block 92. to match the settings. One end of the spring 94 is connected to the base 91 , the other end of the spring 94 is connected to the floating block 93 , and the second probe 72 is placed in the fixed block 92 and does not exceed the floating block 93 . When the connector 90 of the cable 300 is upward, and the mobile phone motherboard 200 is positioned on the cable 300 and then crimped, the floating block 93 moves downward under pressure, and at this time, the spring 94 is compressed, and the second probe in the fixed block 92 is exposed. needle 72 , so as to realize the conduction between the second probe 72 and the second contact 72 . After the test is completed, with the disappearance of the resisting force, the slider 93 moves upward under the recovery of the elastic force of the spring 94, and the second probe 72 is housed and protected again.

Specifically, in order to accurately place the mobile phone main board 200 on the cable 300 , the connector 90 further includes positioning bosses 95 , and two ends of the slider 93 are respectively provided with a positioning boss 95 . Further, the connector 90 also includes a positioning pin 96 , which is arranged on the edge of the slider 93 to realize the accurate placement of the mobile phone main board 200 . Correspondingly, corresponding alignment holes are provided on the main board 200 of the mobile phone.

In conjunction with accompanying drawings 1 to 8, the working principle of the mobile phone motherboard and touch screen conduction test fixture 100 of the present application is described in detail as follows:

First, insert the USB data cable into the USB interface 44, place the mobile phone motherboard 200 to be tested in the placement area 40a of the lower needle plate 40, and realize the connection between the mobile phone motherboard 200 and the cable 300 through the positioning boss 95 and the positioning pin 96. The alignment of the connector 90 is placed, and the touch screen is also placed in the placement area of the positioning board 50 at the same time. Then, open the power button 21 located on the lower case 20 and connect the air pressure valve, press the control buttons 22 on both sides of the lower case 20 with both hands, and under the control of the controller, the driver 80 drives the upper needle plate 30 to do Move linearly until it is crimped with the lower needle plate 40 so that the first probe 61 and the second probe 72 are in contact with the first contact 71 and the second contact 72, thereby realizing the connection between the mobile phone main board 200 and the detection module. conduction. Then, the detection module detects the conduction between the mobile phone main board 200 and the touch screen, and feeds back the test result to the touch screen through the probe interface 45 for display. When "PASS" is displayed, the mobile phone main board 200 and the touch screen are connected as Good product, otherwise it is a defective product, press the reset button 23 on the casing 20, the driver 80 resets, take off the mobile phone motherboard 200 and the touch screen, and complete the test. Wherein, the emergency stop button 24 can be pressed as required, and the driver 80 is reset in an emergency. Continuously repeating the above operations, the automatic test of the conduction between the mobile phone motherboard 200 and the touch screen can be realized,

Compared with the prior art, the mobile phone main board and touch screen conduction test fixture 100 disclosed by the utility model only needs to place the mobile phone main board 200 on the lower needle board 40, and connect the flat cable 300, and then start the device, then through the probe The contact between the needle 60 and the contact point 70 makes the main board 200 of the mobile phone electrically connected to the detection module, and the automatic detection of the conduction between the main board 200 of the mobile phone and the touch screen can be realized through the detection module, and the detection module also feeds back the detection result to the touch screen display, so as to realize the automatic detection of the conduction between the main board 200 of the mobile phone and the touch screen, the detection efficiency is high, the cost is reduced, and the whole jig has a simple structure and is easy to operate.

What is disclosed above is only the preferred embodiment of the present utility model, and of course the scope of rights of the present utility model cannot be limited with this. Therefore, the equivalent changes made according to the patent scope of the utility model still belong to the scope covered by the utility model .

Claims (9)

1. a kind of cell phone mainboard and touch-screen continuity test tool, it is characterised in that including upper box, lower box, detection module, Upper needle plate, lower needle plate and location-plate, the lower needle plate and the location-plate are arranged side by side on the lower box, cell phone mainboard with Both touch-screens correspondence is placed in the lower needle plate with being connected on the location-plate and by winding displacement therebetween, the detection mould Group is arranged in the lower box, and the upper needle plate is arranged on the upper box and the upper needle plate can relatively described lower needle plate It is moved to and is mutually crimped with the lower needle plate, then the contact by the upper needle plate with the probe on the lower needle plate with contact is realized The conducting of the cell phone mainboard and the detection module, the detection module is led to the cell phone mainboard with the touch-screen Test result simultaneously is fed back on the touch-screen to show by logical test.

2. cell phone mainboard as claimed in claim 1 and touch-screen continuity test tool, it is characterised in that also including controller, The controller is arranged in the upper box or the lower box to control the action of the detection module and the upper needle plate.

3. cell phone mainboard as claimed in claim 1 and touch-screen continuity test tool, it is characterised in that also including driver, The driver is connected with the upper needle plate, and the driver drives the upper needle plate vertically to move along a straight line.

4. cell phone mainboard as claimed in claim 1 and touch-screen continuity test tool, it is characterised in that the upper needle plate and institute State corresponding be provided with the first probe and the first contact, the lower needle plate on lower needle plate and be additionally provided with the second contact, USB interface and spy Needle interface, the cell phone mainboard and the winding displacement are connected by connector.

5. cell phone mainboard as claimed in claim 4 and touch-screen continuity test tool, it is characterised in that the connector is set In the end of the winding displacement, the connector includes pedestal and the second probe being placed in the pedestal, second probe It is corresponding with second contact to connect the cell phone mainboard and the winding displacement.

6. cell phone mainboard as claimed in claim 5 and touch-screen continuity test tool, it is characterised in that the connector is also wrapped Fixed block, rocker piece and the spring in the pedestal are included, the fixed block is fixedly arranged on the pedestal, the rocker piece set On the fixed block and the two is in the setting that matches, one end of the spring is connected with the pedestal, the spring The other end is connected with the rocker piece, and second probe is placed in the fixed block and without departing from the table of the rocker piece Face.

7. cell phone mainboard as claimed in claim 6 and touch-screen continuity test tool, it is characterised in that also including convex Platform, the two ends of the rocker piece are respectively equipped with positioning boss described in one.

8. cell phone mainboard as claimed in claim 5 and touch-screen continuity test tool, it is characterised in that also including alignment pin, The alignment pin is arranged at the edge of the connector to realize the exact placement of the cell phone mainboard.

9. cell phone mainboard as claimed in claim 5 and touch-screen continuity test tool, it is characterised in that set on the lower needle plate There is a settlement, the cell phone mainboard is placed in the settlement, and the shape size of the settlement and the mobile phone master The shape size of plate matches.