Circuit board testing device and circuit board testing method

Abstract

The present invention discloses a circuit board testing device and a circuit board testing method. The circuit board testing device comprises: a test bench; a first-type circuit board access part, which is arranged on the outer surface of the test bench for accessing the first-type circuit board to be tested; a second-type circuit board access part, which is arranged on the outer surface of the test bench for accessing the second-type circuit board to be tested; a communication unit, which connects the first-type circuit board access part and the second-type circuit board access part, sends a detection signal to the first-type circuit board access part and the second-type circuit board access part, and receives a feedback signal; a storage unit, which stores the standard signal values ​​of the first-type circuit board and the second-type circuit board; a comparison unit, which compares the feedback signal received by the communication unit with the standard signal values ​​of the first-type circuit board and the second-type circuit board stored in the storage unit to form a comparison result; and a display unit, which is arranged on the outer surface of the test bench to display the comparison result.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board detection, and in particular to a circuit board testing device and a circuit board testing method. Background Art

[0002] The circuit boards of current intelligent pressure treatment instruments are mainly tested manually, usually by directly using a multimeter to test the voltage and current between two measuring points on the circuit board to determine whether the circuit board is qualified. This method has the disadvantage of low testing efficiency. For mass-produced circuit boards, a large number of people are required to conduct manual testing, and the results are manually operated and judged. In the case of long-term work, due to the large amount of manual operation, the probability of quality problems is very high.

[0003] In the inspection of circuit boards, how to ensure that the equipment meets user requirements while reducing labor intensity, reducing labor costs, and improving production efficiency has become an urgent problem that technical personnel in this field need to solve. Summary of the invention

[0004] In view of the defects in the prior art, the purpose of the present invention is to provide a circuit board testing device and a circuit board testing method. The circuit board testing device and the circuit board testing method can test multiple circuit boards at the same time, thereby improving the detection speed of the circuit boards. The circuit board testing device can detect accurately and comprehensively, which can effectively reduce the defective rate of products and improve the quality of products.

[0005] According to one aspect of the present disclosure, a circuit board testing device is provided, the circuit board testing device comprising: a test bench; a first-type circuit board access portion, arranged on the outer surface of the test bench, for accessing the first-type circuit board to be tested; a second-type circuit board access portion, arranged on the outer surface of the test bench, for accessing the second-type circuit board to be tested; a communication unit, connecting the first-type circuit board access portion and the second-type circuit board access portion, the communication unit being used to send a detection signal to the first-type circuit board access portion and the second-type circuit board access portion, and receiving a feedback signal from the first-type circuit board access portion and the second-type circuit board access portion; a storage unit, storing standard signal values ​​of the first-type circuit board and the second-type circuit board; a comparison unit, comparing the feedback signal from the first-type circuit board access portion and the second-type circuit board access portion received by the communication unit with the standard signal values ​​of the first-type circuit board and the second-type circuit board stored in the storage unit, to form a comparison result; a display unit, arranged on the outer surface of the test bench, the display unit being used to display the comparison result.

[0006] In a circuit board testing device according to one aspect of the present disclosure, the first-type circuit board insertion portion and the second-type circuit board insertion portion are disposed on an upper surface of the test bench.

[0007] In a circuit board testing device according to one aspect of the present disclosure, the circuit board testing device also includes: a bracket extending from the upper surface of the test bench in a vertical direction; a first upper cover for covering the first type of circuit board access portion to form a closed space; a first moving mechanism movably connected to the bracket, one end of the first moving mechanism being connected to the first upper cover, and the other end being connected to a first handle for driving the first upper cover to move in a vertical direction; a second upper cover for covering the second type of circuit board access portion to form a closed space; a second moving mechanism movably connected to the bracket, one end of the second moving mechanism being connected to the second upper cover, and the other end being connected to a second handle for driving the second upper cover to move in a vertical direction.

[0008] In a circuit board testing device according to one aspect of the present disclosure, the circuit board testing device further includes a third type circuit board access portion, which is disposed on an outer surface of the test bench for accessing a third type circuit board to be tested.

[0009] In the circuit board testing device according to one aspect of the present disclosure, the third type circuit board access portion is disposed on a side of the test bench.

[0010] In a circuit board testing device according to one aspect of the present disclosure, the first type of circuit board is a main control circuit board, the second type of circuit board is a battery switching circuit board, and the third type of circuit board is a communication circuit board.

[0011] In a circuit board testing device according to one aspect of the present disclosure, the display unit includes an indicator light and a display panel arranged on the test bench, wherein when the comparison result is that the circuit board to be tested is faulty, the display panel displays corresponding fault information.

[0012] In a circuit board testing device according to one aspect of the present disclosure, the circuit board testing device further includes a self-test unit, which is used to perform a self-test on an internal testing environment of the circuit board testing device before testing the first type of circuit board and / or the second type of circuit board.

[0013] According to one aspect of the present disclosure, a circuit board testing method is provided, comprising the following steps: burning a test program in a circuit board to be tested; connecting the circuit board to be tested to a corresponding connecting portion of the circuit board testing device; the circuit board testing device tests the connected circuit board to be tested, wherein when multiple circuit boards to be tested are connected, the circuit board testing device tests the multiple circuit boards to be tested simultaneously; and a display unit of the circuit board testing device displays the test result.

[0014] In a circuit board testing method according to one aspect of the present disclosure, in the step of the circuit board testing device testing the connected circuit board to be tested, the circuit board testing device puts the circuit board to be tested into multiple test states, and collects the same voltage, current and / or level logic under the multiple test states.

[0015] Compared with the prior art, in the circuit board testing device and the circuit board testing method provided by the embodiment of the present invention, since the circuit board testing device includes the first type of circuit board access part and the second type of circuit board access part, the first type of circuit board and the second type of circuit board can be tested at the same time, thereby improving the detection speed of the circuit board. The circuit board testing device can accurately detect the existence of problems such as sweating, short circuit, component damage, comprehensive high power consumption, and solder leakage in the circuit board, thereby reducing the defective rate of the product. In addition, the fault information can also be displayed through the display unit, making the maintenance of defective products simple. The maintenance personnel only need to accurately locate the defective problem from the fault information, thereby improving the maintenance efficiency. Furthermore, in the process of testing the circuit board using the circuit board testing device, no manual intervention is required, the test is very comprehensive, and the quality of the product can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of a circuit board testing device according to an embodiment of the present invention;

[0018] Figure 2 is a side view of a circuit board testing device according to an embodiment of the present invention;

[0019] Figure 3 The figure is a schematic diagram of module connection of a circuit board testing device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0021] Described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner.In the following description, many specific details are provided so as to provide a full understanding of embodiments of the present invention.However, it will be appreciated by those skilled in the art that without one or more of the specific details, or adopting other methods, components, materials, etc., technical solutions of the present invention can also be put into practice.In some cases, known structures, materials or operations are not shown or described in detail to avoid blurring the present invention.

[0022] According to the main concept of the present invention, the circuit board testing device of the present invention includes: a test bench; a first-type circuit board access part, which is arranged on the outer surface of the test bench and is used for accessing the first-type circuit board to be tested; a second-type circuit board access part, which is arranged on the outer surface of the test bench and is used for accessing the second-type circuit board to be tested; a communication unit, which connects the first-type circuit board access part and the second-type circuit board access part, and the communication unit is used to send a detection signal to the first-type circuit board access part and the second-type circuit board access part, and receive a feedback signal from the first-type circuit board access part and the second-type circuit board; a storage unit, which stores standard signal values ​​of the first-type circuit board and the second-type circuit board; a comparison unit, which compares the feedback signal from the first-type circuit board access part and the second-type circuit board received by the communication unit with the standard signal values ​​of the first-type circuit board and the second-type circuit board stored in the storage unit to form a comparison result; a display unit, which is arranged on the outer surface of the test bench, and the display unit is used to display the comparison result.

[0023] The technical content of the present invention is further described below in conjunction with the drawings and embodiments.

[0024] Please also see Figures 1 to 3 , Figure 1 A schematic diagram showing the three-dimensional structure of a circuit board testing device according to an embodiment of the present invention is shown. Figure 2 A side view of a circuit board testing device according to an embodiment of the present invention is shown; Figure 3The module connection diagram of a circuit board test device according to an embodiment of the present invention is shown. In a preferred embodiment of the present invention, the circuit board test device mainly includes a test bench 1, a first type circuit board access part 21, a second type circuit board access part 22, a communication unit 3, a storage unit 4, a comparison unit 5 and a display unit 6.

[0025] Specifically, the first type circuit board access portion 21 is provided on the outer surface of the test bench 1 for accessing the first type circuit board to be tested. The second type circuit board access portion 22 is provided on the outer surface of the test bench 1 for accessing the second type circuit board to be tested. Figure 1 In the illustrated embodiment, the first type circuit board access portion 21 and the second type circuit board access portion 22 are disposed on the upper surface of the test bench 1. The first type circuit board may be a main control circuit board, and the second type circuit board may be a battery switching circuit board, but is not limited thereto.

[0026] Furthermore, if Figure 3 As shown, the communication unit 3 is connected to the first type circuit board access part 21 and the second type circuit board access part 22. The communication unit 3 is used to send a detection signal to the first type circuit board access part 21 and the second type circuit board access part 22, and receive a feedback signal from the first type circuit board access part 21 and the second type circuit board access part 22. More specifically, a detection program can be pre-written in the first type circuit board and the second type circuit board, and then the circuit board testing device first attempts to communicate with the first type circuit board and the second type circuit board to be detected through the communication unit 3. When the communication unit 3 successfully establishes communication, the first type circuit board and the second type circuit board to be detected enter a predetermined mode, and then the communication unit 3 collects relevant output information of the first type circuit board and the second type circuit board to be detected.

[0027] The storage unit 4 stores standard signal values ​​of the first type of circuit board and the second type of circuit board. The standard signal values ​​of the first type of circuit board and the second type of circuit board may refer to the range of standard signal values ​​of the first type of circuit board and the second type of circuit board, respectively. Data within the range of the standard signal value represents qualified data, and data outside the range of the standard signal value represents fault data.

[0028] The comparison unit 5 is connected to the communication unit 3 and the storage unit 4. The comparison unit 5 compares the feedback signal received by the communication unit 3 from the first type circuit board access part 21 and the second type circuit board access part 22 with the standard signal value of the first type circuit board and the second type circuit board stored in the storage unit 4 to form a comparison result. In one embodiment of the present invention, when the data received from the first type circuit board or the second type circuit board being tested is judged to be fault data after comparison, a fault code is formed according to the corresponding test content, wherein the fault code details the details of the fault of the first type circuit board or the second type circuit board being tested.

[0029] The display unit 6 is disposed on the outer surface of the test bench 1. The display unit 6 is connected to the comparison unit 5 and is used to display the comparison result. Figure 1 In the illustrated embodiment, the display unit 6 includes a plurality of indicator lights 61 and a display panel 62 disposed on the test bench 1. The plurality of indicator lights 61 can be used to indicate the current state of the first type of circuit board or the second type of circuit board being tested, for example, the first type of circuit board or the second type of circuit board being tested passes the test, the first type of circuit board or the second type of circuit board being tested fails the test, or the first type of circuit board or the second type of circuit board being tested is in a testing state, etc. When the comparison result of the comparison unit 5 is that the circuit board to be tested is faulty (i.e., the first type of circuit board or the second type of circuit board being tested fails the test), the display panel 62 displays the corresponding fault information. In addition, in other embodiments of the present invention, the display unit 6 may include only a display panel to display various types of information during the testing process.

[0030] Further, in Figures 1 to 3 In the illustrated embodiment, the circuit board testing device further includes a third type circuit board access portion 23. The third type circuit board access portion 23 is disposed on the outer surface of the test bench 1 and is used for accessing the third type circuit board to be tested. Figure 1 and Figure 2 In the illustrated embodiment, the third type circuit board access portion 23 is disposed on the side of the test bench 1. The third type circuit board is a communication circuit board, such as a 4G circuit board.

[0031] Further, in Figures 1 to 3 In the illustrated embodiment, the circuit board testing device further includes: a bracket 71 , a first upper cover 72 , a first moving mechanism, a first handle 73 , a second upper cover 74 , a second moving mechanism, and a second handle 75 .

[0032] like Figure 1 and Figure 2 As shown, the bracket 71 extends from the upper surface of the test bench 1 in the vertical direction. The first upper cover 72 is used to cover the first type of circuit board access part 21 to form a closed space. The first moving mechanism is movably connected to the bracket 71, wherein one end of the first moving mechanism is connected to the first upper cover 72, and the other end is connected to the first handle 73, which is used to drive the first upper cover 72 to move in the vertical direction. The second upper cover 74 is used to cover the second type of circuit board access part 22 to form a closed space. The second moving mechanism is movably connected to the bracket 71, wherein one end of the second moving mechanism is connected to the second upper cover 74, and the other end is connected to the second handle 75, which is used to drive the second upper cover 74 to move in the vertical direction.

[0033] Furthermore, in an optional embodiment of the present invention, the circuit board testing device further includes a self-test unit. The self-test unit is used to perform a self-test on the internal test environment of the circuit board testing device before testing the first type of circuit board and / or the second type of circuit board. More specifically, in order to ensure that the circuit board testing device itself is in good condition before each test, the circuit board testing device is self-tested before each test of the circuit board to detect whether the internal test environment of the circuit board testing device is normal, thereby ensuring that each test is accurate.

[0034] Furthermore, the present invention also provides a circuit board testing method. Specifically, the circuit board testing method comprises the following steps:

[0035] Step S100: Burning a test program into the circuit board to be tested.

[0036] Step S200: Connect the circuit board to be tested to the corresponding connection part of the circuit board testing device. Figure 1 and Figure 2 The first type of circuit board access part 21 in the circuit board, or the second type of circuit board to be tested is connected to Figure 1 and Figure 2 The second type circuit board access part 22 in the.

[0037] Step S300: the circuit board testing device tests the connected circuit board to be tested.

[0038] Specifically, in this step, the circuit board testing device first communicates with the circuit board to be tested through its communication unit. When the communication is successfully established, the circuit board to be tested is allowed to enter a predetermined test state. Among them, the circuit board testing device puts the circuit board to be tested into multiple test states, and collects the same voltage, current and / or level logic under multiple test states, so as to more comprehensively detect the circuit board to be tested and reduce the defective rate. Furthermore, the circuit board testing device collects the feedback signal of the circuit board to be tested, and compares it with the standard signal value stored in the storage unit to form a comparison result.

[0039] Furthermore, in an embodiment of the invention, when multiple circuit boards to be tested are connected (for example, a first type of circuit board and a second type of circuit board are connected at the same time), the circuit board testing device tests the multiple circuit boards to be tested at the same time.

[0040] Step S400: The display unit of the circuit board testing device displays the test result. In the embodiment of the present invention, when the data received from the first type of circuit board or the second type of circuit board being tested is determined to be fault data after comparison, a fault code is formed according to the corresponding test content, wherein the fault code details the details of the fault of the first type of circuit board or the second type of circuit board being tested.

[0041] Furthermore, in one embodiment of the present invention, the circuit board testing method includes a self-test step, that is, the internal testing environment of the circuit board testing device is self-tested by the self-test unit before testing the first type of circuit board and / or the second type of circuit board (before step S200). More specifically, preferably, in order to ensure that the circuit board testing device itself is in good condition before each test, the circuit board testing device is self-tested before each test of the circuit board to detect whether the internal testing environment of the circuit board testing device is normal, thereby ensuring that each test is accurate.

[0042] In summary, in the circuit board testing device and the circuit board testing method provided by the embodiment of the present invention, since the circuit board testing device includes the first type of circuit board access part and the second type of circuit board access part, the first type of circuit board and the second type of circuit board can be tested at the same time, thereby improving the detection speed of the circuit board. The circuit board testing device can accurately detect problems such as sweating, short circuit, component damage, comprehensive high power consumption, and solder leaks on the circuit board, thereby reducing the defective rate of the product. In addition, the fault information can also be displayed through the display unit, making the repair of defective products simple. The maintenance personnel only need to accurately locate the defective problem from the fault information, thereby improving the maintenance efficiency. Furthermore, in the process of testing the circuit board using the circuit board testing device, no manual intervention is required, the test is very comprehensive, and the quality of the product can be effectively improved.

[0043] Although the present invention has been disclosed as above with optional embodiments, it is not intended to limit the present invention. Those skilled in the art of the present invention may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A circuit board testing device, characterized in that: The circuit board testing device comprises: Test bench; A first-type circuit board access portion is provided on the outer surface of the test bench and is used for accessing the first-type circuit board to be tested; A second type circuit board access portion is provided on the outer surface of the test bench and is used for accessing the second type circuit board to be tested; a communication unit connected to the first type circuit board access portion and the second type circuit board access portion, the communication unit being used to send a detection signal to the first type circuit board access portion and the second type circuit board access portion, and to receive a feedback signal from the first type circuit board access portion and the second type circuit board access portion; A storage unit storing standard signal values ​​of the first type of circuit board and the second type of circuit board; a comparing unit, which compares the feedback signals received by the communication unit from the first type circuit board access part and the second type circuit board access part with the standard signal values ​​of the first type circuit board and the second type circuit board stored in the storage unit to form a comparison result; A display unit, disposed on an outer surface of the test bench, and configured to display the comparison result; The display unit includes an indicator light and a display panel arranged on the test bench, wherein when the comparison result is that the circuit board to be tested is faulty, the display panel displays corresponding fault information; The circuit board testing device further comprises a self-test unit, which is used to perform a self-test on an internal testing environment of the circuit board testing device before testing the first type of circuit board and / or the second type of circuit board.

2. The circuit board testing device according to claim 1, characterized in that: The first type circuit board access portion and the second type circuit board access portion are arranged on the upper surface of the test bench.

3. The circuit board testing device according to claim 2, characterized in that: The circuit board testing device also includes: A bracket extending vertically from the upper surface of the test bench; A first upper cover, used to cover the first type of circuit board access portion to form a closed space; A first moving mechanism is movably connected to the bracket, one end of the first moving mechanism is connected to the first upper cover, and the other end is connected to a first handle for driving the first upper cover to move in a vertical direction; A second upper cover, used to cover the second type circuit board access portion to form a closed space; The second moving mechanism is movably connected to the bracket, one end of the second moving mechanism is connected to the second upper cover, and the other end is connected to a second handle for driving the second upper cover to move in a vertical direction.

4. The circuit board testing device according to claim 1, characterized in that: The circuit board testing device further comprises a third type circuit board access portion, which is arranged on the outer surface of the test bench and is used for accessing the third type circuit board to be tested.

5. The circuit board testing device according to claim 4, characterized in that: The third type circuit board access portion is arranged on a side of the test bench.

6. The circuit board testing device according to claim 4, characterized in that: The first type of circuit board is the main control circuit board, the second type of circuit board is the battery switching circuit board, and the third type of circuit board is the communication circuit board.

7. A circuit board testing method, characterized in that: The steps include: Burn the test program into the circuit board to be tested; Connecting the circuit board to be tested to a corresponding connecting portion of the circuit board testing device according to any one of claims 1 to 6; The circuit board testing device detects the connected circuit board to be tested, wherein when multiple circuit boards to be tested are connected, the circuit board testing device detects the multiple circuit boards to be tested simultaneously; The display unit of the circuit board testing device displays the detection result.

8. The circuit board testing method according to claim 7, characterized in that: In the step of the circuit board testing device testing the connected circuit board to be tested, the circuit board testing device puts the circuit board to be tested into multiple test states, and collects the same voltage, current and / or level logic under the multiple test states.

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