Multipath output driving board detection method

Abstract

The invention discloses a multipath output driving board detection method, which comprises the following steps that a single-pole double-throw switch is turned on, and a driving board transmits a control signal to a motor based on a PWM driving signal to control the motor to perform positive and negative rotation and shutdown; in the process, if a light-emitting fault lamp exists, the driving board breaks down. According to the invention, the detection efficiency of the single multi-path output power driving board can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of detection, specifically a method for detecting multi-output driver boards. Background Technology

[0002] Currently, the motors used in weaponry, such as fans and pumps, have been upgraded from traditional DC motors to brushless DC motors. Brushless DC motors offer higher efficiency, generate less unnecessary heat, and are more suitable for long-term operation; they also eliminate the mechanical wear of carbon brushes, resulting in a longer service life. However, brushless DC motors require electronic commutation. To ensure miniaturization and weight reduction, the current requirement is for a single driver to drive multiple motors simultaneously. Therefore, the power drive board of this type of driver needs to be tested during the manufacturing process to improve the product qualification rate.

[0003] However, most of the power drive boards used in current drivers perform single-output detection. If multiple outputs are involved, multiple tests are required, which takes a relatively long time and is inefficient. Summary of the Invention

[0004] The purpose of this invention is to provide a method for detecting a multi-output driver board, comprising the following steps:

[0005] 1) Arrange the driver board testing fixture; the driver board testing fixture includes a driver board, a switching power supply module, a horn-shaped adapter board, a toggle switch, a single-pole double-throw switch, and a fault light;

[0006] Connect the driver board testing fixture to the three-phase cable of the motor;

[0007] 2) Turn on the toggle switch, use the switching power supply module to convert the 220VAC mains power to 24VDC, and input it to the driver board through the cable;

[0008] 3) Use the horn-shaped adapter board to provide n sets of 6-channel PWM drive signals to the driver board; n represents the number of motors connected to the driver board;

[0009] 4) When the single-pole double-throw switch is turned on, the driver board transmits control signals to the motor based on the PWM drive signal, controlling the motor to rotate forward and backward and stop;

[0010] If a fault light illuminates during this process, the driver board is faulty.

[0011] Furthermore, the drive board testing fixture is fixed inside the housing using Phillips head countersunk screws, Phillips head combination screws, Phillips head combination screws, Phillips head combination screws, single-ended hexagonal studs, Phillips head combination screws, and single-ended hexagonal studs.

[0012] Furthermore, the housing is made of DC-63 aluminum profile.

[0013] Furthermore, the steps for arranging the driver board testing fixture include:

[0014] Connect the driver output to the Hall sensor and phase line of each motor in sequence; and connect a fault light and a single-pole double-throw switch between the driver and each motor.

[0015] Connect the driver input terminal to the toggle switch and the switching power supply module in sequence;

[0016] Connect the horn-shaped adapter board to the driver board.

[0017] Furthermore, the cable is equipped with a waterproof cable connector.

[0018] The technical effect of this invention is beyond doubt; this invention can effectively improve the detection efficiency of a single multi-output power driver board. Attached Figure Description

[0019] Figure 1 For testing multi-output driver boards;

[0020] Figure 2 Wiring diagram for driver board testing fixture;

[0021] In the diagram: Serial number 1: M4×8 Phillips head countersunk screw;

[0022] Serial number 2: Cross-head combination screw M4×6;

[0023] Item No. 3: Power socket;

[0024] Serial number 4: M3×8 cross-head combination screw;

[0025] Item No. 5: Alligator clips;

[0026] Serial number 6: Horn-shaped adapter plate;

[0027] Serial number 7: Double-layered motherboard I;

[0028] Serial No. 8: Double-layer motherboard II;

[0029] Serial number 9: Waterproof cable connector;

[0030] Serial number 10: Rubber shock-absorbing pad;

[0031] Serial number 11: DC-63 aluminum profile housing;

[0032] Serial number 12: Toggle switch;

[0033] Serial number 13: M3×8 cross-head combination screw;

[0034] Serial No. 14: 42 series brushless DC motor;

[0035] Serial number 15: Single-headed hexagonal stud;

[0036] Serial number 16: Electrical assembly of the main control board of the mechanism drive;

[0037] Serial number 17: Switching power supply module;

[0038] Serial number 18: Cross-head combination screw M3×8;

[0039] Serial number 19: Single-headed hexagonal stud. Detailed Implementation

[0040] The present invention will be further described below with reference to embodiments, but it should not be construed that the scope of the present invention is limited to the following embodiments. Various substitutions and modifications made based on ordinary technical knowledge and common practices in the art without departing from the above-described technical concept of the present invention should be included within the scope of protection of the present invention.

[0041] Example 1:

[0042] A method for detecting a multi-output driver board includes the following steps:

[0043] 1) Arrange the driver board testing fixture; the driver board testing fixture includes a driver board 16, a switching power supply module 17, a horn-shaped adapter board 6, a toggle switch 12, a single-pole double-throw switch, and a fault light;

[0044] Connect the driver board testing fixture to the three-phase cable of the motor;

[0045] 2) Turn on the toggle switch 12, use the switching power supply module 17 to convert the 220VAC mains power to 24VDC, and input it to the driver board through the cable;

[0046] 3) Use the horn-shaped adapter board 6 to provide n sets of 6-channel PWM drive signals to the driver board; n represents the number of motors connected to the driver board;

[0047] 4) When the single-pole double-throw switch is turned on, the driver board transmits control signals to the motor based on the PWM drive signal, controlling the motor to rotate forward and backward and stop;

[0048] If a fault light illuminates during this process, the driver board is faulty.

[0049] The drive board testing fixture is fixed inside the housing 11 by Phillips head countersunk screws 1, Phillips head combination screws 2, Phillips head combination screws 4, Phillips head combination screws 15, single-headed hex studs 15, Phillips head combination screws 18, and single-headed hex studs 19.

[0050] The housing 11 is a DC-63 aluminum profile housing.

[0051] The steps for setting up the driver board testing fixture include:

[0052] Connect the driver output to the Hall sensor and phase line of each motor 14 in sequence; and connect a fault light and a single-pole double-throw switch between the driver and each motor.

[0053] Connect the driver input terminal to the toggle switch 12 and the switching power supply module 17 in sequence;

[0054] Connect the horn-shaped adapter board 6 to the drive board.

[0055] The cable is equipped with a waterproof cable connector 9.

[0056] Example 2:

[0057] A method for detecting a multi-output driver board includes the following steps:

[0058] 1) Arrange the driver board testing fixture; the driver board testing fixture includes a driver board 16, a switching power supply module 17, a horn-shaped adapter board 6, a toggle switch 12, a single-pole double-throw switch, and a fault light;

[0059] Connect the driver board testing fixture to the three-phase cable of the motor;

[0060] 2) Turn on the toggle switch 12, use the switching power supply module 17 to convert the 220VAC mains power to 24VDC, and input it to the driver board through the cable;

[0061] 3) Use the horn-shaped adapter board 6 to provide n sets of 6-channel PWM drive signals to the driver board; n represents the number of motors connected to the driver board;

[0062] 4) When the single-pole double-throw switch is turned on, the driver board transmits control signals to the motor based on the PWM drive signal, controlling the motor to rotate forward and backward and stop;

[0063] If a fault light illuminates during this process, the driver board is faulty.

[0064] Example 3:

[0065] A method for testing a multi-output driver board, with the same technical content as in Embodiment 2, wherein the driver board testing fixture is fixed inside the housing 11 by means of a cross-slot countersunk screw 1, a cross-slot combination screw 2, a cross-slot combination screw 4, a cross-slot combination screw 15, a single-headed hexagonal stud 15, a cross-slot combination screw 18, and a single-headed hexagonal stud 19.

[0066] Example 4:

[0067] A method for detecting a multi-output driver board, the technical content of which is the same as any one of embodiments 2-3, wherein the housing 11 is a DC-63 aluminum profile housing.

[0068] Example 5:

[0069] A method for testing a multi-output driver board, with the same technical content as any one of embodiments 2-4, includes the following steps for arranging the driver board testing fixture:

[0070] Connect the driver output to the Hall sensor and phase line of each motor 14 in sequence; and connect a fault light and a single-pole double-throw switch between the driver and each motor.

[0071] Connect the driver input terminal to the toggle switch 12 and the switching power supply module 17 in sequence;

[0072] Connect the horn-shaped adapter board 6 to the drive board.

[0073] Example 6:

[0074] A method for detecting a multi-output driver board, the technical content of which is the same as any one of embodiments 2-5, wherein the cable is provided with a waterproof cable connector 9.

[0075] Example 7:

[0076] A method for testing a multi-output driver board, with the same technical content as any one of embodiments 2-6, wherein one end of the alligator clip 5 is connected to the output terminal of the switching power supply module 17 via a wire, and the other end is directly clamped to the power input terminal or a specific test point of the driver board 16 under test, for providing convenient and reliable power or signal connection.

[0077] Example 8:

[0078] A method for testing a multi-output driver board, with the same technical content as any one of embodiments 2-7, wherein one end of the double-layer female connector I7 and the double-layer female connector II8 is welded or fixed to the driver board 16 under test, and the other end is connected to the corresponding plug (such as a pin header) on the horn-shaped adapter board 6 to form a reliable board-to-board connection.

[0079] Example 9:

[0080] A method for detecting a multi-output driver board, with the same technical content as any one of embodiments 2-8, wherein a rubber damping pad 10 absorbs and isolates vibrations, preventing vibrations from being directly transmitted to the housing 11 of the fixture and the internal precision electronic components (such as driver boards, busbars, etc.). The rubber damping pad 10 is installed at the bottom of the DC-63 aluminum profile housing (11), located between the housing and the mounting platform, and supports the entire fixture through its own elastic deformation, separating the housing from the external mounting surface.

[0081] Example 10:

[0082] A method for testing a multi-output driver board, with the same technical content as any one of embodiments 2-9. During the testing process of the multi-output driver board, the power path is: mains power → power socket 3 → switching power supply module 17 → alligator clip 5 → driver board under test 16.

[0083] The signal path is: horn-shaped adapter board 6 → double-layer busbar I7 / double-layer busbar II 8 → driver board under test 16 → three-phase cable) → motor 14.

[0084] The control and status path is as follows: Toggle switch 12 and single-pole double-throw switch control the on / off state of the entire system and the direction of motor rotation; fault lights are used to indicate the status of the drive board.

[0085] Example 11:

[0086] The multi-output driver board testing method involves a switching power supply module, a standard main control board, two single-pole double-throw switches, a drive signal adapter board, and several connecting cables.

[0087] The detection method for this multi-output driver board is described below, based on the attached diagram:

[0088] 1. Serial number 17 switching power supply module converts the 220VAC mains power to 24VDC (select according to the driver voltage level), and the converted power is input to the driver board under test through the cable;

[0089] 2. During testing, connect the 28VDC power supply to the driver board under test, and connect the number 6 horn-shaped adapter board to the driver board under test to provide the driver board with 2 sets of 6-channel PWM drive signals.

[0090] 3. Connect the three-phase cable to the driver board under test to output the three-phase voltage to standard motor 1 and motor 2;

[0091] 4. Move the two single-pole double-throw switches on the drive board detection fixture panel to control the motor to rotate forward, reverse, and stop by giving control commands.

[0092] This multi-channel driver board detection method is not only applicable to the detection of 2-channel output driver boards, but can also be derived to detect more driver boards, including control command input, motor phase wire and position signal detection wiring harnesses.

Claims

1. A method for detecting a multi-output driver board, characterized in that, Includes the following steps: Step 1) Arrange the driver board testing fixture; the driver board testing fixture includes a driver board (16), a switching power supply module (17), a horn-shaped adapter board (6), a toggle switch (12), a single-pole double-throw switch, and a fault light; Connect the driver board testing fixture to the three-phase cable of the motor; Step 2) Turn on the toggle switch (12) and use the switching power supply module (17) to convert the 220VAC mains power to 24VDC and input it to the driver board through the cable; Step 3) Use the horn-shaped adapter board (6) to provide n sets of 6-channel PWM drive signals to the drive board; n represents the number of motors connected to the drive board; Step 4) Turn on the single-pole double-throw switch. The driver board transmits control signals to the motor based on the PWM drive signal to control the motor to rotate forward and backward and stop. If a fault light illuminates during this process, the driver board is faulty.

2. The multi-output driver board detection method according to claim 1, characterized in that: The drive board testing fixture is fixed inside the housing (11) by cross-slot countersunk screws (1), cross-slot combination screws (2), cross-slot combination screws (4), cross-slot combination screws (15), single-headed hexagonal studs (15), cross-slot combination screws (18), and single-headed hexagonal studs (19).

3. The multi-output driver board detection method according to claim 2, characterized in that: The housing (11) is a DC-63 aluminum profile housing.

4. The multi-output driver board detection method according to claim 1, characterized in that, The steps for setting up the driver board testing fixture include: Connect the driver output terminal to the Hall sensor and phase line of each motor (14) in sequence; and connect a fault light and a single-pole double-throw switch between the driver and each motor. Connect the driver input terminal to the toggle switch (12) and the switching power supply module (17) in sequence; Connect the horn-shaped adapter plate (6) to the drive board.

5. The multi-output driver board detection method according to claim 1, characterized in that, The cable is equipped with a waterproof cable connector (9).

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