PCBA testing device

Abstract

The utility model discloses a PCBA (Printed Circuit Board Assembly) testing device, comprising a testing module which comprises a power supply access unit, a wireless charging unit, a programmable power supply and a switching unit; the switching unit is provided with a power supply access end, a wired test connection end and a wireless test connection end, the wireless test connection end is connected with the input end of the wireless charging unit, the power supply access end is connected with the power supply access unit, and the switching unit is used for switching the connection states of the power supply access end, the wired test connection end and the wireless test connection end; the programmable power supply, the output end of the wireless charging unit and the wired test connection end are all connected with test probes; the object placing assembly is arranged above the plurality of test probes and is used for placing a PCBA board to be tested; and a driving assembly. According to the utility model, switching between a wired charging function test and a wireless charging function test of the PCBA board can be realized without repeatedly plugging and unplugging a charging wire.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic manufacturing testing, in particular to a PCBA testing device. Background Art

[0002] PCBA (Printed Circuit Board Assembly) refers to the assembly of printed circuit boards. When performing functional tests on PCBA boards, the wired charging function and wireless charging function of the PCBA board are tested to see if they are intact. When switching between the wired charging function test and the wireless charging function test, it is often necessary to repeatedly plug and unplug the charging cable. The frequent plugging and unplugging can easily cause line loss and poor contact. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a PCBA test device that can switch between the wired charging function test and the wireless charging function test of the PCBA board without repeatedly plugging and unplugging the charging cable.

[0004] The PCBA testing device according to the embodiment of the utility model includes:

[0005] The test module comprises a power access unit, a wireless charging unit, a programmable power supply and a switching unit; the switching unit has a power access terminal, a wired test connection terminal and a wireless test connection terminal, the wireless test connection terminal is connected to the input terminal of the wireless charging unit, the power access terminal is connected to the power access unit, and the switching unit is used to switch the connection state between the power access terminal and the wired test connection terminal and the wireless test connection terminal; the programmable power supply, the output terminal of the wireless charging unit and the wired test connection terminal are all connected with a test probe; a plurality of the test probes are arranged corresponding to a plurality of test points of a PCBA board to be tested; the programmable power supply is used to provide a working voltage for the PCBA board to be tested;

[0006] A storage component is arranged above the plurality of test probes and is used for placing the PCBA board to be tested;

[0007] A driving component is used to make the storage component approach or move away from the multiple test probes, so that the multiple test points of the PCBA board to be tested are connected to or disconnected from the multiple test probes.

[0008] The PCBA testing device according to the embodiment of the utility model has at least the following gain effects:

[0009] The switching unit can switch the connection status between its power access terminal and the wired test connection terminal and the wireless test connection terminal, thereby realizing the switching between the wired charging function test and the wireless charging function test of the PCBA board; when the wired charging function test is required, the power access terminal of the switching unit is controlled to be connected to the wired test connection terminal and disconnected from the wireless test connection terminal, so that the test probe connected to the wired test connection terminal is connected to the power access unit, and the power access unit performs wired charging on the PCBA board to be tested through the test probe; when the wireless charging function test is required, the power access terminal of the switching unit is controlled to be connected to the wireless test connection terminal and disconnected from the wired test connection terminal, so that the wireless charging unit is connected to the power access unit, the power access unit supplies power to the wireless charging unit, and the wireless charging unit performs wireless charging on the PCBA board to be tested through the test probe. The PCBA test device of the embodiment of the utility model can realize the switching between the wired charging function test and the wireless charging function test of the PCBA board to be tested by setting a switching unit. There is no need to switch the charging mode by repeatedly plugging and unplugging the charging cable, which reduces the number of plugging and unplugging times, reduces line loss, and prolongs the life of the test device to a certain extent. At the same time, it improves stability. In addition, it makes the test operation more convenient, simple and efficient.

[0010] According to some embodiments of the present invention, an input end of the power access unit is connected to an external power source, and an output end of the power access unit is connected to the power access end.

[0011] According to some embodiments of the present utility model, the switching unit includes a three-speed switching switch, and the three-speed switching switch has a first pin, a second pin and a third pin; the first pin is used as the wired test connection terminal; the second pin is used as the power access terminal; and the third pin is used as the wireless test connection terminal.

[0012] According to some embodiments of the present utility model, the wireless charging unit includes:

[0013] A wireless charging device, whose input terminal is connected to the wireless test connection terminal;

[0014] The wireless charging coil assembly is arranged close to the wireless charging device, and the output end of the wireless charging coil assembly is connected to the test probe.

[0015] According to some embodiments of the present invention, the controlled end of the programmable power supply is connected to a control module, and the control end of the programmable power supply is connected to the test probe; the control module is used to control the voltage of the programmable power supply.

[0016] According to some embodiments of the utility model, the test module also includes a test substrate, and the power access unit, the switching unit, the wireless charging unit, the programmable power supply and the plurality of test probes are all arranged on the test substrate; the plurality of test probes are arranged corresponding to the plurality of test points of the PCBA board to be tested.

[0017] According to some embodiments of the present invention, the power access unit, the switching unit, the wireless charging unit and the programmable power supply are all arranged on the back side of the test substrate.

[0018] According to some embodiments of the present utility model, the storage assembly includes:

[0019] An elastic support component is arranged on the test substrate;

[0020] A placement plate is arranged above the plurality of test probes on the test substrate and is used to place the PCBA board to be tested; the placement plate can be compressed and moved along a direction perpendicular to the test substrate by the elastic support component.

[0021] According to some embodiments of the present invention, the elastic support assembly is a plurality of positioning spring columns, and the plurality of positioning spring columns are used together to support the storage plate.

[0022] According to some embodiments of the present utility model, the drive assembly includes:

[0023] Press plate;

[0024] A support driving assembly is used to drive the pressing plate to move away from or approach the testing probe.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 This is a schematic diagram of the structure of a PCBA testing device according to an embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of the back side of the test substrate;

[0029] Figure 3 This is a circuit connection diagram for the test module.

[0030] Reference numerals:

[0031] Test substrate 110, power access unit 120, wireless charging device 131, wireless charging coil assembly 132, programmable power supply 140, switching unit 150,

[0032] The storage plate 210, the PCBA board placement area 211 to be tested, the positioning spring column 220,

[0033] The pressing plate 310, the supporting driving assembly 320,

[0034] Control module 400. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present utility model, if there is a description of first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present utility model, it should be noted that, unless otherwise clearly stated, terms such as limitation, setting, installation, connection, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model based on the specific content of the technical solution.

[0039] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described below are only part of the embodiments of the present utility model, not all of the embodiments.

[0040] See also Figures 1 to 3 As shown, Figure 1 The PCBA testing device of the embodiment of the utility model is: Figure 2 is a schematic diagram of the back side of the test substrate 110, Figure 3 The circuit connection diagram of the test module is shown in FIG. 1 . The PCBA test device of the embodiment of the utility model includes a test module, a storage component and a drive component;

[0041] The test module includes a power access unit 120, a wireless charging unit, a programmable power supply 140 and a switching unit 150; the switching unit 150 has a power access terminal, a wired test connection terminal and a wireless test connection terminal, the wireless test connection terminal is connected to the input terminal of the wireless charging unit, the power access terminal is connected to the power access unit 120, and the switching unit 150 is used to switch the connection state between the power access terminal and the wired test connection terminal and the wireless test connection terminal; the output terminal of the programmable power supply 140, the wireless charging unit and the wired test connection terminal are all connected with a test probe; a plurality of test probes are arranged corresponding to a plurality of test points of the PCBA board to be tested; the programmable power supply 140 is used to provide a working voltage for the PCBA board to be tested;

[0042] A storage component is arranged above a plurality of test probes and is used to place the PCBA board to be tested;

[0043] The driving component is used to make the storage component approach or move away from the multiple test probes, so that the multiple test points of the PCBA board to be tested are connected or disconnected with the multiple test probes.

[0044] The switching unit 150 can switch the connection status between its power access terminal and the wired test connection terminal and the wireless test connection terminal, thereby realizing the switching between the wired charging function test and the wireless charging function test of the PCBA board; when the wired charging function test is required, the power access terminal of the switching unit 150 is controlled to be connected to the wired test connection terminal and disconnected from the wireless test connection terminal, so that the test probe connected to the wired test connection terminal is connected to the power access unit 120, and the power access unit 120 performs wired charging on the PCBA board to be tested through the test probe; when the wireless charging function test is required, the power access terminal of the switching unit 150 is controlled to be connected to the wireless test connection terminal and disconnected from the wired test connection terminal, so that the wireless charging unit is connected to the power access unit 120, the power access unit 120 supplies power to the wireless charging unit, and the wireless charging unit performs wireless charging on the PCBA board to be tested through the test probe.

[0045] The PCBA board to be tested is placed on top of the storage component, and the storage component is arranged above multiple test probes, and the multiple test probes are arranged corresponding to multiple test points of the PCBA board to be tested. When the driving component drives the storage component downward to approach the test base probe, the PCBA board to be tested placed on the storage component contacts the test probe, and the PCBA board to be tested can be tested at this time; when the driving component drives the storage component upward away from the test probe, the PCBA board to be tested placed on the storage component is separated from the test probe, and the PCBA board cannot be tested at this time.

[0046] The PCBA test device of the embodiment of the utility model can realize the switch between the wired charging function test and the wireless charging function test of the PCBA board to be tested by setting the switching unit 150. There is no need to switch the charging mode by repeatedly plugging and unplugging the charging cable, which reduces the number of plugging and unplugging times, reduces line loss, and prolongs the life of the test device to a certain extent. At the same time, it improves stability. In addition, it makes the test operation more convenient, simple and efficient.

[0047] In some embodiments, the PCBA board to be tested may be an earphone charging box PCBA board.

[0048] In some embodiments, the input end of the power access unit 120 is connected to an external power source, and the output end of the power access unit 120 is connected to the power access end. The power access unit 120 is used to supply power for the charging test process after connecting to the external power source; when a wired charging function test is required, the external power source performs wired charging on the PCBA board to be tested through the power access unit 120; when a wireless charging function test is required, the external power source supplies power to the wireless charging unit through the power access unit 120, and the wireless charging unit supplies power to the PCBA board to be tested for wireless charging. The power access unit 120 can be a charging cable, specifically, a USB charging cable, a Type-C charging cable, a Lightning charging cable, and a Micro USB charging cable. The external power source can be a charging device, specifically, a charging device such as a computer and an adapter. In some embodiments, one end of the charging cable is connected to the charging device, and the other end is connected to the power access end of the switching unit 150. The selection of the specific charging cable can be adapted to the charging device to achieve a better charging effect.

[0049] like Figure 2 As shown in FIG. 3 , in some embodiments, the switching unit 150 includes a three-speed switch, and the three-speed switch has a first pin, a second pin, and a third pin; the first pin is used as a wired test connection terminal; the second pin is used as a power supply access terminal; and the third pin is used as a wireless test connection terminal. The three-speed switch has three gears, and the gears can be switched by toggling the switch, which is easy and quick to operate.

[0050] like Figure 2As shown in Figure 3, in some embodiments, the first pin of the three-speed switch is connected to a test probe for wired charging function test, corresponding to the wired charging test point on the PCBA board to be tested, the second pin is connected to the charging device through the charging cable, and the third pin is connected to the wireless charging unit. When the three-speed switch is in the first gear, that is, the switch is turned to the position of the first pin, at this time, the second pin is connected to the first pin and disconnected from the third pin, the charging device is connected to the test probe through the switch, and the PCBA board to be tested is directly charged by wire; when the three-speed switch is in the second gear, that is, the switch is turned to the position of the second pin, at this time, the second pin is disconnected from the first pin and the third pin, and it is in a suspended state at this time, the charging device is not connected, and wired and wireless charging are not performed; when the three-speed switch is in the third gear, that is, the switch is turned to the position of the third pin, at this time, the second pin is connected to the third pin and disconnected from the first pin, the charging device is connected to the wireless charging unit through the switch, and the wireless charging unit can wirelessly charge the PCBA board to be tested after it works.

[0051] like Figure 2 As shown in FIG. 3 , in some embodiments, the wireless charging unit includes a wireless charging device 131 and a wireless charging coil assembly 132 ;

[0052] A wireless charging device 131, whose input terminal is connected to the wireless test connection terminal;

[0053] The wireless charging coil assembly 132 is disposed close to the wireless charging device 131 , and an output end thereof is connected to a test probe.

[0054] The wireless charging unit can wirelessly charge the PCBA board to be tested. The output end of the wireless charging coil assembly 132 is connected to a test probe for wireless charging function testing, corresponding to the wireless charging test point on the PCBA board to be tested. Specifically, the wireless charging coil assembly 132 is connected to two test probes for wireless charging function testing. The wireless charging coil assembly 132 is arranged close to the wireless charging device 131. When the wireless charging device 131 is connected to the charging device and starts working, the wireless charging coil assembly 132 is driven to charge the PCBA board to be tested. The above-mentioned wireless charging device 131 can be a wireless charger, specifically, it can be an electromagnetic induction wireless charger.

[0055] like Figure 3As shown, in some embodiments, the controlled end of the programmable power supply 140 is connected to the control module 400, and the control end of the programmable power supply 140 is connected to a test probe; the control module 400 is used to control the voltage of the programmable power supply 140. The control end of the programmable power supply 140 is connected to a test probe corresponding to the battery test voltage on the PCBA board to be tested. After the programmable power supply 140 is connected, it can simulate the battery voltage to make the PCBA board to be tested work normally. The controlled end of the programmable power supply 140 is connected to the control module 400, and the control module 400 can set the programmable power supply 140 to output different voltage values ​​as the battery voltage of the PCBA board to be tested. Further, the control module 400 can also read the voltage value and current value of the programmable power supply 140 during the wired or wireless charging process to observe whether there is an abnormality in the charging process. The above-mentioned programmable power supply 140 can be a common 2306 programmable power supply or a 66319D programmable power supply. The above-mentioned control module 400 can be specifically a computer.

[0056] In some embodiments, the programmable power supply 140 can be connected to a computer via a GPIB cable, and the tools in the computer can control the programmable power supply 140, manually set different voltages to power the PCBA board to be tested, and during the wired or wireless charging test, read the current value and voltage value on the programmable power supply 140, that is, the current value and voltage value of the battery of the PCBA board to be tested during the charging process, and record the test data.

[0057] In some embodiments, the test module further includes a test substrate 110, on which a power access unit 120, a switching unit 150, a wireless charging unit, a programmable power supply 140 and a plurality of test probes are all disposed; the plurality of test probes are disposed corresponding to a plurality of test points of the PCBA board to be tested. The test substrate 110 facilitates the fixed arrangement of the plurality of units of the test module and also facilitates the arrangement of the test probes. In some embodiments, as Figure 1 As shown in FIG. 2 , the power access unit 120 may also be disposed next to the test substrate 110 to facilitate connection to a charging device; the programmable power supply 140 may also be disposed next to the test substrate 110 to facilitate connection to the control module 400 .

[0058] In some embodiments, the power access unit 120, the switching unit 150, the wireless charging unit and the programmable power supply 140 are all disposed on the back of the test substrate 110. Disposing multiple units of the test module on the back of the test substrate 110 can save space, centralize the arrangement, and reasonably wire. Figure 2 As shown, the power access unit 120 can also be arranged next to the test substrate 110 to facilitate connection with a charging device; the programmable power supply 140 can also be arranged next to the test substrate 110 to facilitate connection with the control module 400.

[0059] like Figure 1 and 2As shown, in some embodiments, the power access unit 120, the switching unit 150 and the wireless charging unit of the test module are all arranged inside the box, and the test substrate 110 is the box cover, which is detachably connected to the box. Specifically, it can be disassembled and assembled through a hinge structure and a snap-on structure.

[0060] like Figure 1 As shown, in some embodiments, the storage assembly includes an elastic support assembly and a storage plate 210;

[0061] An elastic support assembly is disposed on the test substrate 110;

[0062] The placement plate 210 is disposed above the multiple test probes on the test substrate 110 and is used to place the PCBA board to be tested; the placement plate 210 can be compressed and moved in a direction perpendicular to the test substrate 110 through an elastic support component.

[0063] When the elastic support assembly is compressed in a direction perpendicular to the test substrate 110, the placement plate 210 approaches the test substrate 110, and the test points on the PCBA board to be tested on the placement plate 210 contact the test probes on the test substrate 110; when the elastic support assembly is restored from the compressed state in a direction perpendicular to the test substrate 110, the placement plate 210 moves away from the test substrate 110, and the test points on the PCBA board to be tested on the placement plate 210 are disconnected from the test probes on the test substrate 110. In some embodiments, a PCBA board placement area 211 to be tested is provided on the placement plate 210 for placing the PCBA board to be tested, and its position is set corresponding to the position of the test probes on the test substrate 110 below.

[0064] like Figure 1 As shown, in some embodiments, the elastic support assembly is a plurality of positioning spring columns 220, and the plurality of positioning spring columns 220 are used together to support the storage plate 210. The positioning spring column 220 is a common industrial component, which is mainly composed of a positioning cylinder, a spring and a sleeve to form a spring positioning structure. Through the precise positioning cylinder and reliable spring force, high-precision positioning can be achieved during up and down compression, thereby improving structural stability, facilitating installation and maintenance, being more flexible, and having the advantage of repeated use.

[0065] like Figure 1 As shown, in some embodiments, the elastic support assembly is four positioning spring columns 220, which are arranged between the four corners of the placement plate 210 and the test substrate 110. The four positioning spring columns 220 are arranged at the four corners of the placement plate 210, which can better ensure that the placement plate 210 will not be horizontally offset when it is compressed in a direction perpendicular to the test substrate 110, and avoid the test points on the PCBA board to be tested on the placement plate 210 and the test probe positions on the test substrate 110 not corresponding to each other after pressing down.

[0066] like Figure 1 As shown, in some embodiments, the drive assembly includes a pressure plate 310 and a support drive assembly 320;

[0067] Pressing plate 310;

[0068] The support driving assembly 320 is used to drive the pressing plate 310 away from or close to the test probe.

[0069] The test probe may be arranged on the test substrate 110. When the support driving component 320 drives the pressing plate 310 to approach the test substrate 110, the pressing plate 310 presses down the storage component, so that the test point on the PCBA board to be tested on the storage plate 210 contacts the test probe on the test substrate 110 after the elastic support component is compressed; when the support driving component 320 drives the pressing plate 310 away from the test substrate 110, the pressing plate 310 moves away from the storage component, so that the elastic support component recovers from the compressed state, and the test point on the PCBA board to be tested on the storage plate 210 disconnects from the test probe on the test substrate 110. The support driving component 320 may be a support rod, and the pressing plate 310 slides up and down along the support rod. Specifically, it may be two support cylinders, and the pressing plate 310 has openings on both sides and is penetrated on the support cylinders, and the pressing plate 310 slides up and down along the two support cylinders. The support driving component 320 may also be a cylinder structure, which drives the pressing plate 310 to move up and down. The pressing plate 310 is a transparent plate, and the front of the PCBA to be tested can still be observed when pressing down. In some embodiments, a handle is also provided on the pressing plate 310, and the pressing plate 310 can be driven to press down by pressing down the handle.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0071] Although the embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, the present invention is not limited to the above embodiments. Those skilled in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and purpose of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A PCBA testing device, characterized in that: include: The test module comprises a power access unit, a wireless charging unit, a programmable power supply and a switching unit; the switching unit has a power access terminal, a wired test connection terminal and a wireless test connection terminal, the wireless test connection terminal is connected to the input terminal of the wireless charging unit, the power access terminal is connected to the power access unit, and the switching unit is used to switch the connection state between the power access terminal and the wired test connection terminal and the wireless test connection terminal; the programmable power supply, the output terminal of the wireless charging unit and the wired test connection terminal are all connected with a test probe; a plurality of the test probes are arranged corresponding to a plurality of test points of a PCBA board to be tested; the programmable power supply is used to provide a working voltage for the PCBA board to be tested; A storage component is arranged above the plurality of test probes and is used for placing the PCBA board to be tested; A driving component is used to make the storage component approach or move away from the multiple test probes, so that the multiple test points of the PCBA board to be tested are connected to or disconnected from the multiple test probes.

2. The PCBA testing device according to claim 1, characterized in that: The input end of the power access unit is connected to an external power source, and the output end of the power access unit is connected to the power access end.

3. The PCBA testing device according to claim 1, characterized in that: The switching unit includes a three-speed switch having a first pin, a second pin and a third pin; the first pin is used as the wired test connection terminal; the second pin is used as the power supply access terminal; and the third pin is used as the wireless test connection terminal.

4. The PCBA testing device according to claim 1, characterized in that: The wireless charging unit comprises: A wireless charging device, whose input terminal is connected to the wireless test connection terminal; The wireless charging coil assembly is arranged close to the wireless charging device, and the output end of the wireless charging coil assembly is connected to the test probe.

5. The PCBA testing device according to claim 1, characterized in that: The controlled end of the programmable power supply is connected to the control module, and the control end of the programmable power supply is connected to the test probe; the control module is used to control the voltage of the programmable power supply.

6. The PCBA testing device according to claim 1, characterized in that: The test module also includes a test substrate, and the power access unit, the switching unit, the wireless charging unit, the programmable power supply and the plurality of test probes are all arranged on the test substrate; the plurality of test probes are arranged corresponding to the plurality of test points of the PCBA board to be tested.

7. The PCBA testing device according to claim 6, characterized in that: The power access unit, the switching unit, the wireless charging unit and the programmable power supply are all arranged on the back side of the test substrate.

8. The PCBA testing device according to claim 6 or 7, characterized in that: The storage component comprises: An elastic support component is arranged on the test substrate; A placement plate is arranged above the plurality of test probes on the test substrate and is used to place the PCBA board to be tested; the placement plate can be compressed and moved along a direction perpendicular to the test substrate by the elastic support component.

9. The PCBA testing device according to claim 8, characterized in that: The elastic support assembly is a plurality of positioning spring columns, and the plurality of positioning spring columns are used together to support the storage plate.

10. The PCBA testing device according to claim 1, characterized in that: The drive assembly comprises: Press plate; A support driving assembly is used to drive the pressing plate to move away from or approach the testing probe.

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