PCBA testing device

Abstract

The utility model discloses a PCBA (Printed Circuit Board Assembly) testing device, comprising a testing substrate which comprises a testing area and an indicating area; a plurality of probes are arranged in the test area and are arranged corresponding to a plurality of test points of the PCBA board to be tested; the object placing assembly is arranged above the testing area, the object placing assembly can move in a compressed mode in the direction perpendicular to the testing substrate, and the object placing assembly is used for placing a PCBA board to be tested; the driving assembly is used for enabling the object placing assembly to be far away from or close to the test substrate so as to enable the plurality of test points of the PCBA board to be tested to be far away from or contact with the plurality of probes; the light guide unit comprises a plurality of light guide assemblies, and the light guide assemblies are arranged in one-to-one correspondence with the indicator lamps on the back faces of the PCBA boards to be tested and used for guiding light of the indicator lamps on the back faces of the PCBA boards to be tested to the indication area. According to the utility model, the light guide unit is arranged, so that the state of the indicating lamp on the back surface of the PCBA board can be detected.

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 indicator light status on the PCBA board is detected. When the test device is testing, the indicator lights on the front of the PCBA board are easy to observe, but the indicator lights on the back of the PCBA board are difficult to observe, and it is impossible to determine whether the indicator lights are in good condition. 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, which can realize the observation of the on and off conditions of the indicator light arranged on the back of the PCBA board.

[0004] According to the first embodiment of the utility model, the PCBA testing device includes:

[0005] The test substrate comprises a test area and an indication area; a plurality of probes are arranged in the test area, corresponding to a plurality of test points of the PCBA board to be tested;

[0006] A storage component is arranged above the test area, the storage component can be compressed and moved in a direction perpendicular to the test substrate, and the storage component is used to place the PCBA board to be tested;

[0007] A driving component, used to move the placement component away from or close to the test substrate, so that the multiple test points of the PCBA board to be tested are away from or in contact with the multiple probes;

[0008] The light guide unit includes a plurality of light guide components, and the plurality of light guide components are arranged in one-to-one correspondence with the plurality of indicator lights on the back of the PCBA board to be tested, and is used to guide the light of the indicator lights on the back of the PCBA board to be tested to the indication area.

[0009] The PCBA testing device according to the embodiment of the utility model has at least the following gain effects:

[0010] After the light guide unit is set, the indicator light located at the back of the PCBA board that is inconvenient to observe is transmitted to the indicator area position that is easy to observe through multiple light guide components in the light guide unit, and displayed. At the same time, each light guide component is set one-to-one with the indicator light on the back of each PCBA board to be tested, so the on and off status of each light is displayed independently, avoiding the problem that it is difficult to specifically judge the status of a single indicator light when multiple indicator lights of the same color are set close to each other. The PCBA test device of the embodiment of the utility model is helpful for detecting the status of the indicator light on the back of the PCBA board, can realize the observation of the on and off status of the indicator light set on the back of the PCBA board, and makes the detection process simpler while improving the detection accuracy.

[0011] According to some embodiments of the utility model, the light guide component is an optical fiber, and multiple optical fibers are arranged in a one-to-one correspondence with multiple indicator lights on the back of the PCBA board to be tested, and the first end of each optical fiber is close to a corresponding indicator light, and the second end is extended to the indication area.

[0012] According to some embodiments of the present utility model, the test substrate is provided with:

[0013] The first fixing holes having the same number as the indicator lights on the back of the PCBA board to be tested are arranged in the test area, and the plurality of the first fixing holes are arranged in a one-to-one correspondence with the plurality of the indicator lights; the first fixing holes are used to fix the first end of the optical fiber;

[0014] The second fixing hole is arranged in the indicating area, and the second end of the optical fiber passes through the second fixing hole and is extended to the indicating area; the second fixing hole is used to fix the second end of the optical fiber.

[0015] According to some embodiments of the present invention, the PCBA testing device further includes a display screen disposed on the testing substrate.

[0016] According to some embodiments of the present invention, the PCBA testing device further includes a power input unit, and an external power supply device can supply power to the PCBA board to be tested through the power input unit.

[0017] According to some embodiments of the present invention, the power input unit has a positive input terminal and a negative input terminal, and a protection capacitor is arranged between the positive input terminal and the negative input terminal.

[0018] According to some embodiments of the present invention, the PCBA testing device further includes a switch unit for performing a power on / off operation of the PCBA board to be tested.

[0019] According to some embodiments of the present utility model, the storage assembly includes:

[0020] An elastic support component is arranged on the test substrate;

[0021] A placement plate is arranged on the test substrate and located above the test area, 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.

[0022] 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.

[0023] According to some embodiments of the present utility model, the drive assembly includes:

[0024] Press plate;

[0025] The support driving assembly is used to drive the pressing plate to move away from or approach the testing substrate.

[0026] 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

[0027] 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:

[0028] Figure 1 This is a schematic diagram of the structure of a PCBA testing device according to an embodiment of the utility model;

[0029] Figure 2 Schematic diagram of the back side of the test substrate.

[0030] Reference numerals:

[0031] Test substrate 100, test area 110, display screen 120, display screen FPC holder 121, switch unit 130, power input unit 140, first fixing hole 150, second fixing hole 160,

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

[0033] Press plate 300,

[0034] Light guide assembly 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 Figure 1 to Figure 2 As shown, Figure 1 The PCBA testing device of the first embodiment of the utility model, Figure 2 This is a schematic diagram of the back side of the test substrate 100. The PCBA test device includes the test substrate 100, a storage component, a driving component and a light guide unit;

[0041] The test substrate 100 includes a test area 110 and an indication area; a plurality of probes are arranged in the test area 110, corresponding to a plurality of test points of the PCBA board to be tested;

[0042] A storage component is disposed above the test area 110. The storage component can be compressed and moved in a direction perpendicular to the test substrate 100. The storage component is used to place the PCBA board to be tested;

[0043] A driving component, used to move the placement component away from or close to the test substrate 100, so that multiple test points of the PCBA board to be tested are away from or in contact with multiple probes;

[0044] The light guide unit includes a plurality of light guide components 400, which are arranged one by one corresponding to the indicator lights on the back of the PCBA boards to be tested, and are used to guide the light of the indicator lights on the back of the PCBA boards to be tested to the indication area.

[0045] The PCBA board to be tested is placed above the storage component, and the storage component is arranged above the test area 110 of the test substrate 100. When the driving component drives the storage component downward to approach the test substrate 100, the PCBA board to be tested placed above the storage component contacts with multiple probes on the test area 110 of the test substrate 100, and the PCBA board can be tested at this time; when the driving component drives the storage component upward away from the test substrate 100, the PCBA board to be tested placed above the storage component is separated from the multiple probes on the test area 110 of the test substrate 100, and the PCBA board cannot be tested at this time. In the light guide unit, the number of light guide components 400 is consistent with the number of indicator lights on the back of the PCBA board to be tested, and each light guide component 400 can transmit the on and off status of the indicator light on the back of the PCBA board to be tested to the indication area position, so the status of the indicator light on the back of the PCBA board to be tested can be observed at the indication area position.

[0046] After the light guide unit is set, the indicator light located at the back of the PCBA board that is inconvenient to observe is transmitted to the indicator area position that is easy to observe through multiple light guide components 400 in the light guide unit, and displayed. At the same time, each light guide component 400 is set one-to-one with the indicator light on the back of each PCBA board to be tested, so the on and off status of each light is displayed independently, avoiding the problem that it is difficult to specifically judge the status of a single indicator light when multiple indicator lights of the same color are set close to each other. The PCBA test device of the embodiment of the utility model is helpful for detecting the status of the indicator light on the back of the PCBA board, can realize the observation of the on and off status of the indicator light set on the back of the PCBA board, and makes the detection process simpler while improving the detection accuracy.

[0047] In some embodiments, the PCBA board to be tested is an earphone charging box PCBA board. Some earphone charging boxes have many lighting effects, including a status light or atmosphere light that is displayed when the charging box cover is opened or closed or when the earphones are put in or taken out. There is a disinfection light such as a UVC lamp that works after the earphones are put into the charging box, and an indicator light that displays the charging status on the outside of the charging box. Some of these lighting effects are set on the front of the earphone charging box PCBA board, and some are set on the back of the earphone charging box PCBA board.

[0048] In some embodiments, according to some embodiments of the present invention, the light guide component 400 is an optical fiber, and multiple optical fibers are arranged one-to-one corresponding to the indicator lights on the back of multiple PCBA boards to be tested. The first end of each optical fiber is close to a corresponding indicator light, and the second end is extended to the indication area.

[0049] In this embodiment, the multiple light guide components 400 in the light guide unit use multiple optical fibers. The optical fiber is made of quartz or polymer materials, has a skin-core structure with different refractive indices, is a chemical fiber that can conduct light due to the total reflection of the cortex, and has a good light guiding effect. Specifically, the optical fiber can be a tail optical fiber, one end of the tail optical fiber is facing the light source, and the tail of the other end can see the color and brightness of the light of the object to be tested. For example, one end of the tail optical fiber is set near the lamp to be tested. When the lamp to be tested is not turned on, the other end of the tail optical fiber can see the color of the transparent optical fiber itself, and when the lamp to be tested is turned on, the other end of the tail optical fiber can see the color of the lamp to be tested and other specific light status. In addition, the use of optical fibers in the light guide component 400 can also avoid the problem of glare when looking directly at the light.

[0050] In some embodiments, the light guide assembly 400 can also be a plurality of light guide plates. The light guide plate is made of optical grade acrylic or PC sheet material, and then a high-tech material with an extremely high refractive index and no light absorption is used to print light guide points on the bottom surface of the optical grade acrylic sheet material by laser engraving, V-shaped cross grid engraving, and UV screen printing technology. The optical grade acrylic sheet material is used to absorb the light emitted from the lamp and stay on the surface of the optical grade acrylic sheet material. When the light hits each light guide point, the reflected light will diffuse to various angles, and then destroy the reflection condition and be emitted from the front of the light guide plate. Through various light guide points of different densities and sizes, the light guide plate can emit light evenly. Specifically, the light guide plate can be a long strip light guide plate.

[0051] In some embodiments, the position of the test area 110 on the test substrate 100 is set corresponding to the position where the PCBA board is placed, and the indication area can be any position except the test area 110.

[0052] In some embodiments, the test substrate 100 is provided with first fixing holes 150 and second fixing holes 160, which are the same in number as the indicator lights on the back of the PCBA board to be tested;

[0053] The first fixing holes 150, which are the same in number as the indicator lights on the back of the PCBA to be tested, are arranged in the test area 110, and the plurality of first fixing holes 150 are arranged in one-to-one correspondence with the plurality of indicator lights; the first fixing holes 150 are used to fix the first end of the optical fiber;

[0054] The second fixing hole 160 is disposed in the indicating area, and the second end of the optical fiber passes through the second fixing hole 160 and is extended to the indicating area; the second fixing hole 160 is used to fix the second end of the optical fiber.

[0055] The first fixing hole 150 is provided in the test area 110 on the test substrate 100 and is arranged at the position corresponding to each indicator light on the back of the PCBA board to be tested. The first end of each optical fiber is fixed at a corresponding first fixing hole 150 and receives the light emitted by the indicator light on the back of the PCBA board above the first fixing hole 150. The second fixing hole 160 is provided in the indication area on the test substrate 100, and the second end of the optical fiber passes through the second fixing hole 160 and is placed in the indication area on the test substrate 100. There can be one or more second fixing holes 160. When there is only one second fixing hole 160, the second ends of all optical fibers pass through the second fixing hole 160. However, it is necessary to mark the indicator light corresponding to each optical fiber to prevent test errors. The second fixing holes 160 that are consistent with the number of indicator lights on the back of the PCBA board to be tested can also be provided. In this case, each second fixing hole 160 corresponds to passing through the second end of an optical fiber, which is convenient for observing each indicator light.

[0056] In some embodiments, the PCBA test device further includes a display screen 120 disposed on the test substrate 100. The display screen 120 is a test-related device disposed on the test substrate 100, which is connected to a corresponding probe through a wire, and specifically, the probe is connected to a display screen FPC seat 121 through a wire. When there is a display screen 120 control test point on the PCBA board to be tested, a corresponding display test can be performed when the test point contacts the probe to detect whether the display screen 120 displays corresponding content. The display screen 120 can be a display touch screen, specifically, it can be an LCD display touch screen.

[0057] In some embodiments, the PCBA test device further includes a power input unit 140, and an external power supply device can supply power to the PCBA board to be tested through the power input unit 140. The power input unit 140 is a test-related device disposed on the test substrate 100, which is connected to a corresponding probe through a wire. The PCBA board to be tested has a charging-related test point, and a charging-related test can be performed when the test point contacts the probe.

[0058] In some embodiments, the power input unit 140 has a positive input terminal and a negative input terminal, and a protection capacitor is disposed between the positive input terminal and the negative input terminal. The protection capacitor can prevent surges from occurring and protect the circuit from working safely and stably.

[0059] In some embodiments, the PCBA test device further includes a switch unit 130 for performing a power on / off operation of the PCBA board to be tested. The switch unit 130 is a test-related device disposed on the test substrate 100, which is connected to a corresponding probe through a wire. The switch unit 130 may be a power on / off button.

[0060] In some embodiments, the test substrate 100 is provided with an LCD display touch screen, a power input unit 140, and a power on / off button. The PCBA board to be tested is the PCBA board of the earphone charging box. The power supply device connected to the power input unit 140 is set to the power-on voltage of the earphone charging box, which can be specifically 3.8 V. When the driving component drives the storage component downward to approach the test substrate 100, the PCBA board to be tested placed above the storage component contacts with a plurality of probes on the test area 110 of the test substrate 100. At this time, the PCBA board can be tested, and the LCD display touch screen displays the display content of the original display screen on the earphone charging box. By touching the LCD display touch screen, the indicator light of the earphone charging box can be turned on or off. At the indicator area of ​​the test substrate 100, the color and light status of the indicator light can be observed through the second end of the extended optical fiber.

[0061] In some embodiments, the storage assembly includes an elastic support assembly and a storage plate 210;

[0062] An elastic support assembly is disposed on the test substrate 100;

[0063] The placement plate 210 is disposed on the test substrate 100 and located above the test area 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 100 through an elastic support component.

[0064] When the elastic support component is compressed in a direction perpendicular to the test substrate 100, the placement plate 210 approaches the test substrate 100, and the test points on the PCBA board to be tested on the placement plate 210 contact the probes on the test substrate 100; when the elastic support component recovers from the compressed state in a direction perpendicular to the test substrate 100, the placement plate 210 moves away from the test substrate 100, and the test points on the PCBA board to be tested on the placement plate 210 are disconnected from the probes on the test substrate 100.

[0065] 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 probe on the lower test substrate 100. In some embodiments, a hole is provided on the placement plate 210 outside the PCBA board placement area 211 to be tested, and the hole is a reserved position for the display touch screen provided on the test substrate 100, so as to facilitate touch operation on the display touch screen.

[0066] 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, which improves the structural stability, facilitates installation and maintenance, is more flexible, and has the advantage of repeated use.

[0067] 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 100. 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 and moved in a direction perpendicular to the test substrate 100, and avoid the test point on the PCBA board to be tested on the placement plate 210 after pressing down and the probe position on the test substrate 100 not corresponding.

[0068] In some embodiments, the drive assembly includes a platen 300 and a support drive assembly;

[0069] Press plate 300;

[0070] The support driving assembly is used to drive the pressing plate 300 to move away from or approach the testing substrate 100 .

[0071] When the support driving assembly drives the pressing plate 300 to approach the test substrate 100, the pressing plate 300 presses down the storage assembly, so that the test point on the PCBA board to be tested on the storage plate 210 contacts the probe on the test substrate 100 after the elastic support assembly is compressed; when the support driving assembly drives the pressing plate 300 away from the test substrate 100, the pressing plate 300 moves away from the storage assembly, so that the elastic support assembly recovers from the compressed state, and the test point on the PCBA board to be tested on the storage plate 210 disconnects from the probe on the test substrate 100. The support driving assembly can be a support rod, and the pressing plate 300 slides up and down along the support rod, which can be specifically two supporting cylinders, and the pressing plate 300 has openings on both sides and is penetrated on the supporting cylinders, and the pressing plate 300 slides up and down along the two supporting cylinders. The support driving assembly can also be a cylinder structure, driving the pressing plate 300 to move up and down. The pressing plate 300 is a transparent plate, and the front of the PCBA board to be tested can still be observed when pressing down. In some embodiments, a round handle is also provided on the pressing plate 300.

[0072] 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.

[0073] 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 substrate comprises a test area and an indication area; a plurality of probes are arranged in the test area, corresponding to a plurality of test points of the PCBA board to be tested; A storage component is arranged above the test area, the storage component can be compressed and moved in a direction perpendicular to the test substrate, and the storage component is used to place the PCBA board to be tested; A driving component, used to move the placement component away from or close to the test substrate, so that the multiple test points of the PCBA board to be tested are away from or in contact with the multiple probes; The light guide unit includes a plurality of light guide components, and the plurality of light guide components are arranged in one-to-one correspondence with the plurality of indicator lights on the back of the PCBA board to be tested, and is used to guide the light of the indicator lights on the back of the PCBA board to be tested to the indication area.

2. The PCBA testing device according to claim 1, characterized in that: The light guide component is an optical fiber, and a plurality of the optical fibers are arranged in one-to-one correspondence with the indicator lights on the back of the plurality of PCBA boards to be tested. The first end of each of the optical fibers is close to a corresponding indicator light, and the second end is extended to the indication area.

3. The PCBA testing device according to claim 2, characterized in that: The test substrate is provided with: The first fixing holes having the same number as the indicator lights on the back of the PCBA board to be tested are arranged in the test area, and the plurality of the first fixing holes are arranged in a one-to-one correspondence with the plurality of the indicator lights; the first fixing holes are used to fix the first end of the optical fiber; The second fixing hole is arranged in the indicating area, and the second end of the optical fiber passes through the second fixing hole and is extended to the indicating area; the second fixing hole is used to fix the second end of the optical fiber.

4. The PCBA testing device according to claim 1, characterized in that: The PCBA testing device also includes a display screen arranged on the testing substrate.

5. The PCBA testing device according to claim 1, characterized in that: The PCBA testing device further comprises a power input unit, and an external power supply device can supply power to the PCBA board to be tested through the power input unit.

6. The PCBA testing device according to claim 5, characterized in that: The power input unit has a positive input terminal and a negative input terminal, and a protection capacitor is arranged between the positive input terminal and the negative input terminal.

7. The PCBA testing device according to claim 1, characterized in that: The PCBA testing device further comprises a switch unit for performing a power on / off operation of the PCBA board to be tested.

8. The PCBA testing device according to claim 1, characterized in that: The storage component comprises: An elastic support component is arranged on the test substrate; A placement plate is arranged on the test substrate and located above the test area, 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; The support driving assembly is used to drive the pressing plate to move away from or approach the testing substrate.

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