CN216927009U - Testing device and testing equipment for mobile phone PCB - Google Patents

Abstract

The utility model discloses a testing device and testing equipment for a mobile phone PCB, wherein the testing device comprises a horizontal mounting base, and the mounting base is provided with: an in-out tray, the upper surface of which is formed with a containing area for placing a mobile phone PCB; a probe card located above the height of the in-out tray; the plurality of test probes are vertically fixed on the adapter plate on the probe plate; the patch panel has wires arranged thereon for transmitting electrical signals to the plurality of test probes, and a USB port is connected through the electrically connected wires. Therefore, the mobile phone PCB to be tested is placed in the containing area on the in-out tray, the in-out tray moves to the position under the probe plate, the probe plate is controlled to move downwards, so that the test probe on the probe plate is aligned with the needle point on the mobile phone PCB, and finally test data of the test probe is collected and analyzed through the USB interface by test software on an external PC terminal.

Description

Testing device and testing equipment for mobile phone PCB

Technical Field

The utility model relates to the technical field of PCB testing, in particular to a testing device and testing equipment for a mobile phone PCB.

Background

The PCB board is called a printed circuit board, is an important electronic component, is not only a support body of an electronic component, but also a provider of electrical connection of the electronic component, is also called a "printed" circuit board because it is manufactured by adopting an electronic printing technology, and is widely used for a series of electronic products such as a computer main board, a mobile phone main board, a PAD main board and the like. Printed circuit board need test its circuit break-make and functional integrity after production is accomplished, and present test equipment adopts the design of pushing down formula mostly, utilizes actuating mechanism to drive the probe and pushes down the test promptly, but present test equipment takes place the problem that the probe can't be aligned with the needle point on the PCB board easily in the test process, influences test work, leads to the test result not accurate enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a testing device for a mobile phone PCB and testing equipment applying the testing device, which can solve at least one of the problems.

According to one aspect of the present invention, the present invention provides a testing device for a PCB of a mobile phone, the testing device comprising a horizontal mounting base, wherein the mounting base is arranged with: an in-out tray configured to be movable back and forth relative to the mounting base, and an accommodation area for placing a mobile phone PCB is formed on an upper surface of the in-out tray; a probe card configured to be movable up and down with respect to the mounting base and positioned above the height of the access tray; the test probes are vertically fixed on the adapter plate on the probe plate, and probes of the test probes penetrate through the probe plate and extend out of the lower end of the probe plate; the patch panel is provided with wires for transmitting electrical signals to the plurality of test probes, and a USB port is connected through the electrically connected wires.

Therefore, the mobile phone PCB to be tested is placed in the containing area on the in-out tray, the in-out tray is moved to the position under the probe plate, the probe plate is controlled to move downwards until the probe of the test probe on the probe plate is aligned with the needle point on the mobile phone PCB, the USB port on the adapter plate is in line connection with the external PC end, and therefore test software on the external PC end collects and analyzes test data of the test probe, the test precision is high, and the test effect is good.

As an embodiment of the present invention, the probe board is further provided with a scanning camera, a through hole is formed at a corresponding position on the probe board, and a lens of the scanning camera illuminates the outside of the probe board from above the through hole.

From this, when business turn over tray removes to the probe card under, scanning camera will see through the through-hole and carry out the automatic scanning to the two-dimensional code number on the cell-phone PCB in the accommodation area on the business turn over tray this moment to the test software that makes things convenient for outside PC to serve carries out corresponding test data to this cell-phone PCB and types, and intelligent degree is high.

In an embodiment of the present invention, a circuit protector for protecting wiring is mounted on the interposer. For protecting the wiring on the patch panel from overloads and short circuits.

As an embodiment of the present invention, a protruding positioning portion is formed on a lower end surface of the probe card, and a slot portion is provided on an upper surface of the in-out tray at a position corresponding to the positioning portion. Therefore, the action that the probe board is close to the in-out tray is more stable and reliable, and the probe of the test probe on the probe board is further ensured to be aligned with the probe point on the mobile phone PCB.

As an embodiment of the present invention, a protruding contact portion is further formed on a lower end surface of the probe card to control a distance between the probe card and an in-out tray. Because the test probe is physical contact with the last pinpoint (solder joint) of cell-phone PCB board, probably leave the pit on the pinpoint, with the distance between accurate control probe board and the business turn over tray through design contact portion, from this, after contact portion bottom and the business turn over tray contacted, just the probe that shows test probe on the probe board and the last pinpoint of cell-phone PCB board just aim at this moment, prevents that test probe's probe from excessively oppressing the pinpoint.

As an embodiment of the utility model, the side part of the probe card is provided with an air blowing assembly for dissipating heat of the mobile phone PCB in the accommodating area in a testing stage. Therefore, the mobile phone PCB in the testing process is cooled through the blowing assembly, the situation that the mobile phone PCB is heated continuously to cause overheating of devices on the mobile phone PCB is avoided, and the reliability of the mobile phone PCB is prevented from being influenced.

As an embodiment of the present invention, the in-out tray is mounted on a substrate, and a pair of sliding rails arranged in a mirror image manner are connected to the lower part of the substrate; a sliding groove body is arranged on the mounting base, the sliding groove body is connected with the sliding rail in a clamping manner, and the sliding groove body is in sliding fit with the sliding rail; the mounting base is also provided with a rotatable pulley, and the pulley is in sliding fit with the lower rail surface of the sliding rail; and a push-pull cylinder is arranged on the mounting base, and the output end of the push-pull cylinder is connected with the in-out tray. Therefore, the in-out tray on the automatic control substrate can move back and forth relative to the mounting base through the push-pull air cylinder, so that the moving accuracy of the in-out tray is realized, and the in-out tray can be accurately stopped under the probe card.

As an embodiment of the present invention, two sides of the probe card are respectively connected with a lifting cylinder, and the lifting cylinders are fixedly arranged on the mounting base. Therefore, the up-and-down motion of the probe board is automatically controlled by the lifting cylinder, the 'soft landing' of the probe of the test probe on the pin point of the PCB of the mobile phone can be realized, and the probe board keeps moving at a constant speed, so that the impact force of the probe of the test probe on the pin point is further reduced.

According to another aspect of the utility model, the utility model also provides a test device for the mobile phone PCB, which comprises the test device and a device box body, wherein the test device is hidden in the device box body; the front part of the equipment box body is provided with a cover body which can be opened and closed, a control button panel is arranged on the cover body, and the cover body is also provided with a passage opening through which the in-out tray can freely pass; and an openable access door is arranged at the top of the equipment box body.

From this, come the testing arrangement in the automatic control equipment box through the control button panel on the lid and carry out test work, degree of automation, intellectuality are high, can guarantee continuous detection moreover, improve work efficiency.

In some embodiments, a connecting piece which enables the cover body and the equipment box body to be relatively folded or unfolded is arranged between the cover body and the equipment box body, one of the cover body and the test box body is provided with an elastic clamping piece, and the other is correspondingly provided with a hook.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram illustrating a testing apparatus for a mobile phone PCB according to a first embodiment of the present invention;

FIG. 2 is a schematic top view showing the access tray;

FIG. 3 is a schematic top view showing a probe card;

fig. 4 is a schematic view showing a probe card in a downward viewing angle;

FIG. 5 is a schematic diagram showing the testing apparatus in a rear perspective;

FIG. 6 is a schematic structural diagram showing a testing apparatus for PCB board of handset according to the second embodiment of the utility model;

FIG. 7 is an enlarged partial schematic view of portion A of FIG. 6;

in the figures, the various reference numbers are:

10-mounting base, 20-in-out tray, 30-probe board, 40-substrate, 50-equipment box, 110-lifting cylinder, 210-accommodating area, 220-slot part, 310-test probe, 320-adapter plate, 330-circuit protector, 340-USB port, 350-scanning camera, 360-through hole, 370-positioning part, 380-contact part, 390-blowing component, 410-sliding rail, 420-sliding slot body, 430-pulley, 440-push-pull cylinder, 510-cover body, 520-control button panel, 530-access door, 540-connecting piece, 550-elastic clamping piece and 560-hook.

Detailed Description

In order to more clearly illustrate the utility model, the utility model is further described below in connection with preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the utility model.

The first embodiment is as follows:

because printed circuit board need test its circuit break-make and functional integrality after production is accomplished, and present test equipment adopts the design of pushing down formula, utilizes actuating mechanism to drive the probe and pushes down the test promptly, but present test equipment takes place the problem that the probe can't be aligned with the needle point on the PCB board easily in the test process to influence test work, and then lead to the test result to be accurate inadequately.

In order to solve this technical problem, as shown in fig. 1, 2, 3 and 4, the present invention provides:

a testing device for a PCB of a mobile phone comprises a horizontal mounting base 10, wherein the mounting base 10 is provided with:

an access tray 20 configured to be movable back and forth with respect to the mounting base 10, and an accommodation area 210 for placing a mobile phone PCB is formed on an upper surface of the access tray 20;

a probe card 30 configured to be movable up and down with respect to the mounting base 10, and the probe card 30 is located above the height of the access tray 20; and

a plurality of test probes 310, the plurality of test probes 310 being vertically fixed to an interposer 320 on the probe card 30, probes of the test probes 310 passing through the probe card 30 and protruding out of a lower end of the probe card 30;

the patch panel 30 is provided with wiring for transmitting electrical signals to the plurality of test probes 310, and a USB port 340 is connected through the electrically connected wiring.

When the test device is used, a mobile phone PCB to be tested is placed in a containing area on an in-out tray, wherein the shape and design of the containing area are matched with the mobile phone PCB so as to ensure that the mobile phone PCB placed in the containing area is not loosened and deviated, and then the in-out tray is moved to be under a probe board; at the moment, the probe board is controlled to move downwards at a constant speed until the probe of the test probe on the probe board is aligned with the needle points on the mobile phone PCB, wherein the number and the installation position of the test probe on the probe board are matched with the number and the position of the needle points on the mobile phone PCB, and the corresponding adjustment can be carried out according to different mobile phone models; the USB port on the adapter plate is connected with an external PC end line so as to facilitate the test software on the external PC end to acquire and analyze the test data of the test probe; it is noted that, since the claimed test apparatus focuses on the hardware architecture portion, the software system portion regarding collecting and how to analyze the test probe test data will not be described herein too much.

In general, each mobile phone PCB after leaving the factory is marked with a corresponding number, such as a two-dimensional code number, in order to facilitate the test software on the external PC terminal to perform corresponding test data entry on the mobile phone PCB which is continuously tested, in this embodiment, the probe card 30 is further provided with a scanning camera 350, and a through hole 360 is formed at a corresponding position on the probe card 30, and the lens of the scanning camera 350 is directed out of the probe card 30 from above the through hole 360, and thus, when the in-out tray moves to the position under the probe board, the two-dimension code number on the mobile phone PCB is just positioned under the through hole, and the scanning camera is in signal connection with the external PC end, so that the scanning camera on the probe board automatically scans the two-dimension code number on the mobile phone PCB in the accommodating area on the in-out tray through the through hole, and feeds back the number information of the mobile phone PCB measured at the moment to the external PC end.

Since the wiring is disposed on the adapter board, and in order to prevent the wiring from being overloaded and short-circuited, the adapter board 320 is provided with a circuit protector 330 for protecting the wiring, which is a standard component in the present embodiment.

Further, in order to make the action of the probe board 30 approaching the in-out tray 20 more stable and reliable, so as to ensure that the probe head of the test probe 310 on the probe board 30 is aligned with the needle point on the PCB of the mobile phone, for this reason, a protruding positioning portion 370 is formed on the lower end surface of the probe board 30, and a slot portion 220 is provided on the upper surface of the in-out tray 20 corresponding to the positioning portion 370, so that when the in-out tray 20 stops under the probe board 30, the probe board 30 is controlled to move down to the positioning portion 370 to be inserted into the slot portion 220, so that the positioning portion 370 and the slot portion 220 can be inserted and matched.

Further, a contact portion 380 is formed on a lower end surface of the probe card 30 to control a distance between the probe card 30 and the in-out tray 20, and the contact portion 380 has a length shorter than that of the positioning portion 370. Because the test probe is in physical contact with a pin point (welding point) on the mobile phone PCB, a pit can be left on the pin point, and therefore, the distance between the probe board and the in-out tray needs to be accurately controlled, so that after the bottom end of the contact part is contacted with the in-out tray, the probe of the test probe on the probe board is just aligned with the pin point on the mobile phone PCB, and the probe of the test probe is prevented from excessively pressing the pin point.

Further, the lateral part of probe card 30 is equipped with blowing subassembly 390 for dispel the heat to the cell-phone PCB board in the accommodation region at the test stage, blowing subassembly's structure is generalized, generally by blowing head, trachea, air supply, solenoid valve etc. constitute, at the test stage, blowing head of blowing subassembly is towards the cell-phone PCB board in the accommodation region, from this, alright dispel the heat to the cell-phone PCB board in the test process through blowing subassembly, prevent that cell-phone PCB board from continuously rising temperature and making the device on it overheated, avoid influencing the reliability of cell-phone PCB board.

As to a specific implementation manner of the in-out tray capable of moving back and forth relative to the mounting base, in an embodiment of the present embodiment, as shown in fig. 5, such technical means are adopted: the in-out tray 20 is arranged on a base plate 40, and a pair of slide rails 410 which are arranged in a mirror image mode are connected to the lower portion of the base plate 40; a sliding groove body 420 is arranged on the installation base 10, the sliding groove body 420 is connected with the sliding rail 410 in a clamping manner, and the sliding groove body 420 is in sliding fit with the sliding rail 410; the mounting base 10 is further provided with a rotatable pulley 430, and the pulley 430 is in sliding fit with the lower rail surface of the sliding rail 410; a push-pull cylinder 440 is disposed on the mounting base 10, and an output end of the push-pull cylinder 440 is connected to the in-out tray 20.

From this, through the extension or the withdrawal of control push-and-pull cylinder output for the relative mounting base of business turn over tray that the base plate drove on it carries out the seesaw, and in order to ensure push-and-pull cylinder displacement's reliability, can select to install the sensor on push-and-pull cylinder, can move to the relevant position with accurate ground control push-and-pull cylinder output, thereby ensure that business turn over tray can stop under the probe card.

As to a specific implementation mode in which the probe card can move up and down relative to the mounting base, in one embodiment of the present embodiment, the following technical means are adopted: two sides of the probe board 30 are respectively connected with a lifting cylinder 110, and a main body part of the lifting cylinder 110 is fixedly arranged on the mounting base 10, and the lifting cylinder 110 automatically controls the up-and-down movement of the probe board 30, so that the 'soft landing' of the probe of the test probe on the pin point of the mobile phone PCB can be realized, and the probe board keeps moving at a constant speed, thereby further reducing the impact force of the probe of the test probe on the pin point.

Example two:

in order to perform continuous testing operation and improve the degree of automation and intelligence, as shown in the figure, the utility model also provides:

as shown in fig. 6 and 7, a testing apparatus for a PCB of a mobile phone includes the testing device, and further includes an apparatus box 50 for hiding the testing device therein; the front part of the equipment box body 50 is provided with a cover body 510 which can be opened and closed, the cover body 510 is provided with a control button panel 520, and the cover body 510 is also provided with a passage opening through which the in-out tray 20 can freely pass; the top of the equipment box 50 is provided with an openable access door 530.

The control button panel comprises but is not limited to a power switch button electrically connected with a power supply, a start button, an emergency stop switch button, a scanning camera start button electrically connected with a scanning camera, a heat dissipation button electrically connected with a blowing assembly, an in-out tray in-out control button electrically connected with a push-pull cylinder, a probe board up/down control button electrically connected with a lifting cylinder and the like, and a PLC (programmable logic controller), a power supply, a USB (universal serial bus) adapter, an electromagnetic valve and the like are correspondingly arranged in the equipment box body.

Further, a connecting piece 540 which enables the cover 510 and the equipment box 50 to be relatively folded or unfolded is arranged between the cover 510 and the equipment box 50, one of the cover 510 and the test box 50 is provided with an elastic clamping piece 550, and the other is correspondingly provided with a hook 560. After the cover body is folded with the equipment box body, the cover body is fixed on the equipment box body through the matching of the elastic clamping piece and the hook, the cover body is prevented from being accidentally lifted in the testing process, and the external environment can be prevented from interfering the testing work of the testing device in the equipment box body after the cover body is accidentally lifted.

Therefore, the testing device in the equipment box body is automatically controlled to perform testing work through the control button panel on the cover body, the automation and intelligence degree is high, continuous detection can be guaranteed, and the working efficiency is improved; in addition, if faults occur in the test process, corresponding fault troubleshooting can be carried out by opening the cover body and/or the access door, so that the maintenance work is facilitated.

It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.

Claims (10)

1. The utility model provides a testing arrangement of cell-phone PCB board, testing arrangement includes a horizontal mounting base, its characterized in that, arranged on the mounting base:

an in-out tray configured to be movable back and forth relative to the mounting base, and an accommodation area for placing a mobile phone PCB is formed on an upper surface of the in-out tray;

a probe card configured to be movable up and down with respect to the mounting base and positioned above the height of the access tray; and

the test probes are vertically fixed on the adapter plate on the probe plate, and probes of the test probes penetrate through the probe plate and extend out of the lower end of the probe plate;

the patch panel is provided with wires for transmitting electrical signals to the plurality of test probes, and a USB port is connected through the electrically connected wires.

2. The device for testing the PCB of the mobile phone as claimed in claim 1, wherein the probe board is further provided with a scanning camera, and a through hole is formed at a corresponding position on the probe board, and a lens of the scanning camera illuminates outside the probe board from above the through hole.

3. The device for testing the PCB of the mobile phone as claimed in claim 1, wherein a circuit protector for protecting wiring is installed on the adapter plate.

4. The device for testing the PCB of the mobile phone as claimed in claim 1, wherein the lower end surface of the probe card is formed with a protruding positioning part, and the upper surface of the in-out tray is provided with a slot part corresponding to the positioning part.

5. The device for testing the PCB of the mobile phone as claimed in claim 4, wherein the lower end surface of the probe card is further formed with a protruding contact part for controlling the distance between the probe card and the in-out tray.

6. The device for testing the PCB of the mobile phone as claimed in claim 1, wherein the lateral part of the probe card is provided with a blowing component for dissipating heat of the PCB of the mobile phone in the accommodating area during the testing stage.

7. The device for testing the PCB of the mobile phone as claimed in claim 1, wherein the access tray is installed on a base plate, and a pair of slide rails arranged in a mirror image manner are connected to the lower part of the base plate; a sliding groove body is arranged on the mounting base, the sliding groove body is connected with the sliding rail in a clamping manner, and the sliding groove body is in sliding fit with the sliding rail; the mounting base is also provided with a rotatable pulley, and the pulley is in sliding fit with the lower rail surface of the sliding rail; and a push-pull cylinder is arranged on the mounting base, and the output end of the push-pull cylinder is connected with the in-out tray.

8. The device for testing the PCB of the mobile phone as claimed in claim 1, wherein two sides of the probe board are respectively connected with a lifting cylinder, and the lifting cylinders are fixedly arranged on the mounting base.

9. A test device for a mobile phone PCB, which comprises the test device of any one of claims 1 to 8, and is characterized by further comprising a device box body for hiding the test device therein; the front part of the equipment box body is provided with a cover body which can be opened and closed, a control button panel is arranged on the cover body, and the cover body is also provided with a passage opening through which the in-out tray can freely pass; and an openable access door is arranged at the top of the equipment box body.

10. The device for testing the PCB of the mobile phone as claimed in claim 9, wherein a connecting piece is arranged between the cover body and the device box body to enable the cover body and the device box body to be relatively folded or unfolded, one of the cover body and the test box body is provided with an elastic clamping piece, and the other is correspondingly provided with a hook.

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