A brushless motor testing device and testing method

Abstract

This invention relates to the field of brushless motor testing technology, and discloses a brushless motor testing device and method, including a device body, a testing component, and an unlocking mechanism. The device body is connected to a support rod and two sets of mounting plates. Each mounting plate has a movable block, and both sets of movable blocks are connected to racks with meshing gears. Each set of movable blocks is connected to a testing component and a torque sensor. A sliding rod is mounted on the support rod, and unlocking mechanisms are installed at both ends of the sliding rod. A connecting component is provided between the unlocking mechanism and the testing base. Two wedge blocks are connected to the sliding rod, and a push rod is connected to the movable base. This invention achieves simultaneous testing on one side and material loading and positioning on the other side through dual-station cooperation. Relying on the linkage structure of the push rod, wedge blocks, sliding rod, and unlocking component, the circuit is automatically turned on after the motor under test is positioned, and the power connector is simultaneously unlocked and disconnected after testing, avoiding test failure due to missed connections.

Description

Technical Field

[0001] This invention belongs to the field of brushless motor testing technology, specifically, it relates to a brushless motor testing device and testing method. Background Technology

[0002] Brushless motors are widely used in many fields such as smart homes, automotive electronics, and industrial automation equipment due to their advantages such as compact structure, high efficiency, and long service life. After the mass production and processing of brushless motors are completed, they need to be comprehensively tested by a special testing device to check their core indicators such as operating performance, circuit continuity, and mechanical fit accuracy. This is to screen out unqualified products and ensure the overall quality stability of the motors leaving the factory.

[0003] However, current brushless motor testing devices have low overall testing efficiency, making it difficult to meet the production capacity requirements of large-scale continuous production. At the same time, after the motor is positioned, a separate power connector needs to be plugged in, which is prone to missing or improper plugging, leading to problems such as interruption of the testing process, failure of parameter acquisition, and distortion of test results, making it difficult to ensure the stability and continuity of the testing process.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: A brushless motor testing device includes a device body, a testing component, a connecting component, and an unlocking mechanism. The device body has two testing bases mounted on it, and a brushless motor is mounted on each testing base. The device body is connected to a back plate, two sets of vertically arranged mounting plates, and a support rod. A display screen for displaying testing parameters is mounted on the back plate. A movable block is slidably mounted on each set of mounting plates. A rack is connected to each set of movable blocks, and a gear meshes between the two sets of racks. A rotating shaft is installed in the gear. A movable seat is connected to the front end of each set of movable blocks, and a testing component is mounted on the movable seat. A sliding rod is slidably mounted on the support rod, and an unlocking mechanism is mounted at both ends of the sliding rod. A connecting component for electrically connecting the brushless motor and the device body is provided between the unlocking mechanism and the testing base. A bracket is connected to the device body, and an electric push rod is mounted on the bracket. The electric push rod is connected to the bottom of one of the movable blocks. Two wedge-shaped blocks are connected to the sliding rod, and a push rod that cooperates with the wedge-shaped blocks is connected to the movable seat.

[0006] In a preferred embodiment of the present invention, two sets of mounting plates are symmetrically mounted on the equipment body, and each set of mounting plates has a vertically opening moving groove, in which a moving block is slidably mounted.

[0007] In a preferred embodiment of the present invention, a protective cover is connected between the two sets of mounting plates, a rotating shaft is installed in the protective cover, a gear is installed on the rotating shaft, and racks mesh with the gear on both the left and right sides.

[0008] In a preferred embodiment of the present invention, the detection assembly includes a drive motor, a coupling, a rotating shaft, and an elastic pad. The drive motor is mounted on the movable base. The output end of the drive motor extends downward and is connected to the coupling. The bottom end of the coupling is connected to the rotating shaft. The bottom end of the rotating shaft is connected to the elastic pad. The rotating shaft is coaxially arranged with the detection base. The detection base has a positioning groove for positioning the brushless motor.

[0009] In a preferred embodiment of the present invention, the unlocking mechanism includes a mounting base, a driving block, and a pressing block. The driving block is slidably mounted in the mounting base, and the driving block has an inclined groove. A straight groove is vertically opened inside the mounting base. The pressing block is slidably mounted in the driving block, and a first slider and a second slider are connected to both sides of the pressing block. The first slider is slidably mounted in the straight groove, and the second slider is slidably mounted in the inclined groove.

[0010] In a preferred embodiment of the present invention, a sliding rod is slidably installed in the support rod, a guide block is connected in the support rod, a guide groove adapted to the guide block is opened on the side wall of the sliding rod, the sliding rod is slidably installed in the support rod through the cooperation of the guide block and the guide groove, and mounting seats are connected to both ends of the sliding rod.

[0011] In a preferred embodiment of the present invention, a circuit board is connected to the bottom of the brushless motor, and a positioning block adapted to the positioning groove is connected to the bottom of the circuit board. The brushless motor is positioned by engaging the positioning block with the positioning groove.

[0012] In a preferred embodiment of the present invention, the connecting assembly includes a plug and a socket, the plug is installed in the mounting base, a tail cover is connected to the tail of the plug, an anti-disengagement clip is installed on the plug, and a socket is installed on the circuit board, and the plug and socket are compatible.

[0013] In a preferred embodiment of the present invention, a connecting plate is connected to the side wall of the mounting plate, a cylinder is mounted on the connecting plate, and a pressing plate for braking and decelerating the brushless motor is connected to the end of the cylinder. The pressing plate is correspondingly disposed on the side wall of the brushless motor to be tested.

[0014] The brushless motor testing method comprises the following steps: S1: Align the positioning block at the bottom of the brushless motor under test with the positioning slot of one of the test bases on the main body of the equipment to complete the positioning of the brushless motor under test. At the same time, the next brushless motor under test can be placed on another empty test base during the test. S2: The corresponding moving block is driven to move down along the moving groove of the mounting plate by the electric push rod, which drives the moving seat and the detection component to move down synchronously. S3: The moving seat moves down, causing the push rod to move down synchronously. The push rod squeezes the wedge block, causing the sliding rod to slide along the support rod. The sliding rod causes the mounting seat and the plug to move, so that the plug is connected to the socket on the circuit board of the brushless motor under test, realizing circuit conduction. The current and voltage sensors are connected to the plug through wires to collect the working current and voltage parameters of the brushless motor under test in real time. S4: The detection component continues to move down until the elastic pad presses against the upper end of the brushless motor under test, and the drive motor is started. The drive motor drives the rotating shaft and the elastic pad to rotate through the coupling, thereby driving the brushless motor under test to run synchronously. The torque sensor collects the output torque transmitted from the drive motor to the brushless motor in real time, and the current and voltage sensors collect the motor's operating current, no-load current, starting current and voltage stability parameters synchronously. All detection data are transmitted to the display screen synchronously. The core performance indicators of the brushless motor, such as output power, efficiency and stall torque, are calculated by the built-in algorithm of the device to complete the performance test. S5: After the test is completed, start the cylinder. The cylinder drives the extrusion plate to move and fit against the brushless motor under test, using friction to achieve rapid braking and deceleration. S6: Control the electric push rod to retract, driving the corresponding moving block and moving seat to move upward. The push rod on this side moves upward synchronously, releasing the pressure on the corresponding wedge block. At this time, another set of moving blocks moves downward synchronously under the transmission of gears and racks. Another set of moving seats drives the corresponding push rod to move downward, pressing another set of wedge blocks on the sliding rod, pushing the sliding rod to slide in the opposite direction along the support rod, driving the drive block to slide along the inside of the mounting seat. The drive block drives the pressing block to move downward through the cooperation of the inclined groove and the straight groove, pressing the anti-disengagement buckle of the corresponding plug to complete the unlocking. Then the plug and socket are separated, cutting off the circuit of this station. S7: After the other set of testing components moves down to the position, the corresponding push rod squeezes the wedge block and drives the sliding rod to slide towards the station, completing the automatic connection, circuit conduction and performance testing of the other set of brushless motors to be tested. The entire process is carried out in alternating dual-station operation.

[0015] Compared with the prior art, the present invention has the following advantages: This invention utilizes a dual-station linkage and rack-and-pinion synchronous transmission structure to enable simultaneous detection operations on one side of the station and material loading and positioning on the other side, thereby improving detection efficiency. By relying on the linkage structure of the push rod, wedge block, sliding rod, and unlocking component, the lifting action of the detection component is bound to the insertion and unlocking action of the power plug and socket. This allows the circuit to be automatically turned on after the motor under test is positioned, and the power connector to be unlocked and separated synchronously after the test is completed, avoiding detection failures caused by missed connections or incomplete connections.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 A 3D model of a brushless motor testing device; Figure 2 This is a rear view of a brushless motor testing device. Figure 3 This is a schematic diagram of the installation of gears and racks in a brushless motor testing device; Figure 4 A 3D diagram of the testing components of a brushless motor testing device; Figure 5 A 3D diagram of the connection components of a brushless motor testing device; Figure 6 This is an assembly diagram of the support rod and sliding rod of a brushless motor testing device; Figure 7 This is a schematic diagram of the assembly of a brushless motor and its base in a brushless motor testing device. Figure 8 This is a schematic diagram of the internal structure of the unlocking mechanism of a brushless motor testing device. Figure 9 This is a cross-sectional view of the unlocking mechanism of a brushless motor testing device.

[0018] In the diagram: 1. Equipment body; 2. Back panel; 3. Display screen; 4. Mounting plate; 41. Moving slot; 5. Moving block; 6. Rack; 7. Gear; 8. Rotating shaft; 9. Electric push rod; 10. Bracket; 11. Moving base; 12. Drive motor; 13. Rotating shaft; 131. Elastic pad; 132. Coupling; 133. Torque sensor; 134. Current and voltage sensor; 14. Detection base; 141. Positioning slot; 15. Brushless motor; 16. Circuit. Plate; 161, Positioning block; 17, Socket; 18, Support rod; 181, Guide block; 19, Sliding rod; 191, Guide groove; 20, Mounting base; 201, Straight groove; 21, Tail cover; 22, Drive block; 221, Inclined groove; 23, Pressing block; 231, First slider; 232, Second slider; 24, Plug; 241, Anti-disengagement buckle; 26, Wedge block; 27, Push rod; 28, Connecting plate; 29, Cylinder; 30, Extrusion plate; 31, Protective cover. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0020] like Figures 1 to 9As shown, a brushless motor testing device and method includes a device body 1, a detection component, a connecting component, and an unlocking mechanism. The device body 1 is equipped with a support rod 18, two detection bases 14, and two current and voltage sensors 134. A brushless motor 15 is mounted on each detection base 14. A back plate 2, two sets of vertically arranged mounting plates 4, and the support rod 18 are connected to the device body 1. A display screen 3 for displaying detection parameters is mounted on the back plate 2. A moving block 5 is slidably mounted on each set of mounting plates 4. A rack 6 is connected to each set of moving blocks 5. A gear 7 meshes between the two sets of racks 6, and a rotating shaft 8 is installed in the gear 7. Each of the moving blocks 5 is connected to a moving base 11 at its front end. A detection component is installed on the moving base 11, and a torque sensor 133 is installed on the detection component. A sliding rod 19 is slidably installed on the support rod 18. Unlocking mechanisms are installed at both ends of the sliding rod 19. A connection component for electrically connecting the brushless motor 15 and the device body 1 is provided between the unlocking mechanism and the detection base 14. A bracket 10 is connected to the device body 1. An electric push rod 9 is installed on the bracket 10. The electric push rod 9 is connected to the bottom of one of the moving blocks 5. Two wedge blocks 26 are connected to the sliding rod 19. A push rod 27 that cooperates with the wedge blocks 26 is connected to the moving base 11. In this setup, two sets of testing bases 14 form a dual-station testing structure. While one set of brushless motors 15 is being tested, the other set of brushless motors 15 is being loaded and positioned, improving testing efficiency. The back plate 2 and the display screen 3 work together to display various parameters during the testing process in real time, making it easy for staff to view them intuitively. The mounting plate 4 provides vertical sliding support for the moving block 5. The rack 6 and the gear 7 mesh together to achieve synchronous reverse linkage between the two sets of moving blocks 5. The electric push rod 9 is fixed to the equipment body 1 through the bracket 10 to provide lifting power for the moving block 5. The push rod 27 and the wedge block 26 work together to convert the vertical lifting action of the moving base 11 into the lateral displacement of the sliding rod 19, thereby driving the connecting components to complete the insertion or unlocking, realizing the synchronous linkage between mechanical action and electrical control connection.

[0021] like Figures 1 to 9 As shown, in a specific embodiment, two sets of mounting plates 4 are symmetrically mounted on the equipment body 1. Each set of mounting plates 4 has a vertically opening movable groove 41, in which a movable block 5 is slidably mounted. In this configuration, the movable groove 41 provides a sliding track for the movable block 5, ensuring that the movable block 5 drives the subsequent detection components to rise and fall, and ensuring that the detection base 14 and the detection components are always aligned.

[0022] like Figures 1 to 9As shown, a protective cover 31 is connected between the two sets of mounting plates 4. A rotating shaft 8 is installed in the protective cover 31, and a gear 7 is installed on the rotating shaft 8. Racks 6 mesh with the gear 7 on both sides. In this configuration, the protective cover 31 encloses the rotating shaft 8, gear 7, and racks 6, providing protection and preventing external dust and debris from entering the meshing parts and affecting the transmission efficiency. It also prevents workers from accidentally touching the transmission components and causing safety hazards. On the other hand, it provides a stable mounting base for the rotating shaft 8. The rotating shaft 8 serves as a rotational support for the gear 7, ensuring that the gear 7 can rotate. The gear 7 meshes with the racks 6 on both sides, converting the vertical movement of one rack 6 into the reverse vertical movement of the other rack 6, thereby achieving synchronous linkage of the two sets of moving blocks 5 rising and falling.

[0023] like Figures 1 to 9 As shown, the detection assembly further includes a drive motor 12, a coupling 132, a rotating shaft 13, and an elastic pad 131. The drive motor 12 is mounted on the movable base 11. The output end of the drive motor 12 extends downward and is connected to the coupling 132. The bottom end of the coupling 132 is connected to the rotating shaft 13, and the bottom end of the rotating shaft 13 is connected to the elastic pad 131. The rotating shaft 13 is coaxially arranged with the detection base 14, and the detection base 14 has a positioning groove 141 for positioning the brushless motor 15. In this configuration, the movable base 11 provides a mounting carrier for the detection assembly, and moves synchronously with the movable block 5 to move the detection assembly closer to or away from the brushless motor 15. The drive motor 12 provides rotational power to the rotating shaft 13. The coupling 132 acts as a flexible connection, buffering the transmission vibration between the drive motor 12 and the rotating shaft 13 to ensure smooth transmission. The rotating shaft 13 transmits torque to the end elastic pad 131, driving the motor to operate synchronously for detection.

[0024] like Figures 1 to 9 As shown, the unlocking mechanism further includes a mounting base 20, a driving block 22, and a pressing block 23. The driving block 22 is slidably installed in the mounting base 20. The driving block 22 has an inclined groove 221. A straight groove 201 is vertically opened inside the mounting base 20. The pressing block 23 is slidably installed in the driving block 22. A first slider 231 and a second slider 232 are connected on both sides of the pressing block 23. The first slider 231 is slidably installed in the straight groove 201, and the second slider 232 is slidably installed in the inclined groove 221. In this configuration, the mounting base 20 provides installation and sliding space for the drive block 22 and the pressing block 23. The drive block 22 slides laterally within the mounting base 20. The inclined groove 221 and the straight groove 201 cooperate to convert the lateral sliding of the drive block 22 into the vertical movement of the pressing block 23. The first slider 231 slides along the straight groove 201, restricting the pressing block 23 to only make vertical linear movements. The second slider 232 slides along the inclined groove 221, and drives the pressing block 23 to move up and down with the lateral displacement of the drive block 22, thus completing the subsequent unlocking action.

[0025] like Figures 1 to 9 As shown, a sliding rod 19 is slidably installed in the support rod 18, and a guide block 181 is connected to the support rod 18. A guide groove 191, adapted to the guide block 181, is formed on the side wall of the sliding rod 19. The sliding rod 19 is slidably installed in the support rod 18 through the cooperation of the guide block 181 and the guide groove 191. Mounting seats 20 are connected to both ends of the sliding rod 19. In this configuration, the support rod 18 provides lateral sliding support for the sliding rod 19, and the guide block 181 and the guide groove 191 are mutually adapted to provide guidance.

[0026] like Figures 1 to 9 As shown, furthermore, a circuit board 16 is connected to the bottom of the brushless motor 15, and a positioning block 161 adapted to the positioning groove 141 is connected to the bottom of the circuit board 16. The brushless motor 15 is positioned by engaging with the positioning groove 141 through the positioning block 161. In this configuration, the circuit board 16 is used to cooperate with the connecting components to realize the circuit connection between the brushless motor 15 and the device body 1. The positioning block 161 and the positioning groove 141 are adapted in shape and size to quickly complete the positioning and installation of the brushless motor 15, ensuring that the motor does not shift or deviate during the testing and operation process.

[0027] like Figures 1 to 9 As shown, the connecting components further include a plug 24 and a socket 17. The plug 24 is installed in the mounting base 20, and a tail cover 21 is connected to the tail of the plug 24. An anti-disengagement clip 241 is installed on the plug 24, and the socket 17 is installed on the circuit board 16. The plug 24 and the socket 17 are compatible. In this configuration, the plug 24 and the socket 17 are compatible with each other, forming an electrical control connection path between the brushless motor 15 and the device body 1, realizing stable transmission of power and detection signals. The tail cover 21 covers the tail of the plug 24, providing protection for the wiring part of the plug 24. The anti-disengagement clip 241 automatically forms an anti-disengagement locking structure after the plug 24 is inserted into the socket 17, preventing the plug 24 from accidentally coming loose during the detection process, ensuring continuous circuit conduction, and ensuring uninterrupted detection process. The lock can only be released when the pressing block 23 of the unlocking mechanism squeezes the anti-disengagement clip 241, completing the separation of the plug 24 and the socket 17.

[0028] like Figures 1 to 9 As shown, further, a connecting plate 28 is connected to the side wall of the mounting plate 4, and a cylinder 29 is mounted on the connecting plate 28. A pressing plate 30 for braking and decelerating the brushless motor 15 is connected to the end of the cylinder 29. The pressing plate 30 is correspondingly located on the side wall of the brushless motor 15 under test. In this setup, the connecting plate 28 provides a mounting base for the cylinder 29. The cylinder 29 drives the pressing plate 30 to extend or retract rapidly. After the test is completed, the cylinder 29 pushes the pressing plate 30 to adhere to the outer wall of the motor, using friction to brake the brushless motor 15.

[0029] This invention also discloses a brushless motor testing method, the steps of which are as follows: S1: Align the positioning block 161 at the bottom of the brushless motor 15 under test with the positioning slot 141 of one set of test bases 14 on the main body of the equipment 1 to complete the positioning of the brushless motor 15 under test. At the same time, during the test, the next brushless motor 15 under test can be placed on another empty test base 14. S2: The electric push rod 9 drives the corresponding moving block 5 to move down along the moving groove 41 of the mounting plate 4, causing the moving seat 11 to move down synchronously with the detection component; S3: The moving seat 11 moves down, causing the push rod 27 to move down synchronously. The push rod 27 presses the wedge block 26, causing the sliding rod 19 to slide along the support rod 18. The sliding rod 19 causes the mounting seat 20 and the plug 24 to move, so that the plug 24 is connected to the socket 17 on the circuit board 16 of the brushless motor 15 under test, realizing circuit conduction. The current and voltage sensor 134 is connected to the plug 24 through the wire, and collects the working current and voltage parameters of the brushless motor 15 under test in real time. S4: The detection component continues to move down until the elastic pad 131 presses against the upper end of the brushless motor 15 under test, and the drive motor 12 is started. The drive motor 12 drives the rotating shaft 13 and the elastic pad 131 to rotate through the coupling 132, thereby driving the brushless motor 15 under test to run synchronously. The torque sensor 133 collects the output torque transmitted from the drive motor 12 to the brushless motor 15 in real time, and the current and voltage sensor 134 collects the motor's working current, no-load current, starting current and voltage stability parameters synchronously. All detection data are synchronously transmitted to the display screen 3. The core performance indicators such as the output power, efficiency and stall torque of the brushless motor 15 are calculated by the built-in algorithm of the device to complete the performance test. S5: After the test is completed, start cylinder 29. Cylinder 29 drives the extrusion plate 30 to move and fit against the brushless motor 15 under test, using friction to achieve rapid braking and deceleration. S6: Control the electric push rod 9 to retract, driving the corresponding moving block 5 and moving seat 11 to move upward. The push rod 27 on this side moves upward synchronously, releasing the pressure on the corresponding wedge block 26. At this time, another set of moving blocks 5 moves downward synchronously under the transmission of gear 7 and rack 6. Another set of moving seats 11 drives the corresponding push rod 27 to move downward, pressing the other set of wedge blocks 26 on the sliding rod 19, pushing the sliding rod 19 to slide in the opposite direction along the support rod 18, driving the drive block 22 to slide along the inside of the mounting seat 20. The drive block 22, through the cooperation of the inclined groove 221 and the straight groove 201, drives the pressing block 23 to move downward, pressing the anti-disengagement buckle 241 of the corresponding plug 24 to complete the unlocking. Then the plug 24 separates from the socket 17, cutting off the circuit of this station. S7: After the other set of testing components moves down to the position, the corresponding push rod 27 presses the wedge block 26 to drive the sliding rod 19 to slide towards the station, completing the automatic connection, circuit conduction and performance testing of the other set of brushless motors 15 to be tested, with the entire process of dual-station alternating operation.

[0030] The implementation principle of the brushless motor testing equipment and method in this embodiment is as follows: During the downward movement of the moving base 11, the push rod 27 fixed on its side moves downward synchronously. The end of the push rod 27 continuously presses the wedge block 26 at the corresponding position on the sliding rod 19. With the help of the force transmission of the wedge inclined surface, the vertical lifting action of the moving base 11 is converted into the lateral displacement of the sliding rod 19, forcing the sliding rod 19 to slide along the support rod 18 towards the testing station. The guide block 181 on the support rod 18 and the guide groove 191 of the sliding rod 19 cooperate with each other to ensure the translation of the sliding rod 19. When the sliding rod 19 moves laterally, it simultaneously drives the displacement of the unlocking mechanism at both ends. The mounting base 20 in the unlocking component drives the plug 24 in the connecting component to move closer to the side of the brushless motor 15 until the plug 24 is inserted into the socket 17 on the circuit board 16, completing the electrical control connection between the brushless motor 15 and the equipment body 1. The current and voltage sensor 134 is connected to the plug 24 through the wire to collect the working current and voltage parameters of the brushless motor 15 under test in real time, providing data support for subsequent performance testing. Meanwhile, the detection component continues to move downwards until the elastic pad 131 at the end of the rotating shaft 13 presses against the top end face of the brushless motor 15. Then, the drive motor 12 on the moving base 11 is started. The drive motor 12 drives the rotating shaft 13 and the elastic pad 131 to rotate synchronously through the coupling 132. The brushless motor 15 is driven by friction. The torque sensor 133 at the coupling 132 collects the output torque transmitted from the drive motor 12 to the brushless motor 15 in real time. Combined with the parameters such as no-load current, starting current, and voltage stability collected by the current and voltage sensor 134, all detection data are synchronously transmitted to the display screen 3 on the back plate 2. The core performance indicators such as the output power, operating efficiency, and stall torque of the brushless motor 15 are calculated by the built-in algorithm of the equipment to complete the fully automatic performance detection of this station. During the detection at this station, the operator can simultaneously load the next brushless motor 15 on another set of empty detection bases 14, realizing the connection between the detection and loading processes.

[0031] After the current brushless motor 15 at the current workstation is inspected, the cylinder 29 on the side connecting plate 28 of the mounting base 20 is activated. The cylinder 29 drives the bottom pressing plate 30 to extend rapidly. The pressing plate 30 fits tightly against the outer shell of the brushless motor 15, braking and decelerating the motor through friction. After braking, the electric push rod 9 begins to retract, driving the current moving block 5, moving seat 11, and the entire inspection assembly to return to their original position along the moving groove 41. The elastic pad 131 at the end of the rotating shaft 13 then detaches from the surface of the brushless motor 15. During the upward movement of the moving block 5, the top rack 6 is simultaneously driven to rise. The rack 6 meshes with the gear 7 inside the protective cover 31, and the gear 7 rotates stably around the rotating shaft 8, thereby driving the rack 6 on the other side to move downward in the opposite direction. This drives another set of moving blocks 5, moving seat 11, and inspection components to move downward synchronously, directly starting the inspection process at the other workstation, realizing the mechanical linkage between the two workstations and the synchronous action of one rising and one falling.

[0032] As the currently reset movable seat 11 moves upward, the side push rod 27 moves upward synchronously, releasing the squeezing force on the corresponding wedge block 26. At this time, another set of downward-moving movable seats 11 drives the corresponding push rod 27 to move downward synchronously. The push rod 27 squeezes another set of wedge blocks 26 on the sliding rod 19, pushing the sliding rod 19 to slide laterally in the opposite direction along the support rod 18. During the reverse sliding process of the sliding rod 19, it drives the corresponding drive block 22 to slide along the inside of the mounting base 20. The inclined groove 221 opened inside the drive block 22 cooperates with the straight groove 201 on the mounting base 20 to limit the movement, driving the pressing block 23 to move downward steadily. The pressing block 23 slides vertically along the straight groove 201 through the first slider 231 and obliquely along the inclined groove 221 through the second slider 232, driving the pressing block 23 to move downward vertically. The downward-moving pressing block 23 squeezes the anti-disengagement buckle 241 on the corresponding plug 24, releasing the anti-disengagement locking structure between the plug 24 and the socket 17. Subsequently, the sliding rod 19 continues to slide in the opposite direction, causing the mounting base 20 and the plug 24 to move away from the socket 17 simultaneously, completing the electrical control separation and unlocking of this station. It can also drive the other plug 24 to be plugged into the socket 17 of the newly loaded brushless motor 15 and connected to power, realizing a closed-loop linkage of unlocking and separating one station and synchronously plugging and connecting the other station, thereby improving the efficiency of brushless motor detection.

[0033] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A brushless motor testing device, comprising a device body (1), a testing component, a connecting component, and an unlocking mechanism, characterized in that, The device body (1) is equipped with a support rod (18), two detection bases (14) and two current and voltage sensors (134). A brushless motor (15) is installed on the detection base (14). The device body (1) is connected to a back plate (2), two sets of vertically arranged mounting plates (4) and a support rod (18). A display screen (3) is installed on the back plate (2). A moving block (5) is slidably installed on each set of mounting plates (4). A rack (6) is connected to each set of moving blocks (5). A gear (7) meshes between the two sets of racks (6). A rotating shaft (8) is installed in the gear (7). A moving rod (8) is connected to the front end of each set of moving blocks (5). The device body (1) is equipped with a detection component, a torque sensor (133) is installed on the detection component, a sliding rod (19) is slidably installed on the support rod (18), an unlocking mechanism is installed at both ends of the sliding rod (19), a connecting component is provided between the unlocking mechanism and the detection base (14), a bracket (10) is connected to the device body (1), an electric push rod (9) is installed on the bracket (10), the electric push rod (9) is connected to the bottom of one of the moving blocks (5), two wedge blocks (26) are connected to the sliding rod (19), and a push rod (27) that cooperates with the wedge blocks (26) is connected to the moving seat (11).

2. The brushless motor testing equipment according to claim 1, characterized in that, Two sets of mounting plates (4) are symmetrically mounted on the equipment body (1). Each set of mounting plates (4) has a vertically opening moving groove (41), and a moving block (5) is slidably installed in the moving groove (41).

3. The brushless motor testing equipment according to claim 2, characterized in that, A protective cover (31) is connected between the two sets of mounting plates (4). A rotating shaft (8) is installed in the protective cover (31). A gear (7) is installed on the rotating shaft (8). A rack (6) meshes with the gear (7) on both the left and right sides.

4. The brushless motor testing equipment according to claim 1, characterized in that, The detection assembly includes a drive motor (12), a coupling (132), a rotating shaft (13), and an elastic pad (131). The drive motor (12) is mounted on the moving base (11). The output end of the drive motor (12) extends downward and is connected to the coupling (132). The bottom end of the coupling (132) is connected to the rotating shaft (13). The bottom end of the rotating shaft (13) is connected to the elastic pad (131). A torque sensor (133) is also connected to the bottom of the coupling (132). The rotating shaft (13) is coaxially arranged with the detection base (14). The detection base (14) has a positioning groove (141) for positioning the brushless motor (15).

5. The brushless motor testing equipment according to claim 1, characterized in that, The unlocking mechanism includes a mounting base (20), a driving block (22), and a pressing block (23). The driving block (22) is slidably installed in the mounting base (20). The driving block (22) has an inclined groove (221) in it. The mounting base (20) has a vertical groove (201) inside it. The pressing block (23) is slidably installed in the driving block (22). The pressing block (23) has a first slider (231) and a second slider (232) connected on both sides. The first slider (231) is slidably installed in the straight groove (201), and the second slider (232) is slidably installed in the inclined groove (221).

6. The brushless motor testing equipment according to claim 1, characterized in that, A sliding rod (19) is slidably installed in the support rod (18). A guide block (181) is connected in the support rod (18). A guide groove (191) adapted to the guide block (181) is opened on the side wall of the sliding rod (19). The sliding rod (19) is slidably installed in the support rod (18) through the cooperation of the guide block (181) and the guide groove (191). Both ends of the sliding rod (19) are connected to mounting seats (20).

7. The brushless motor testing equipment according to claim 1, characterized in that, The bottom of the brushless motor (15) is connected to a circuit board (16), and the bottom of the circuit board (16) is connected to a positioning block (161) that is compatible with the positioning groove (141). The brushless motor (15) is positioned by engaging the positioning block (161) with the positioning groove (141).

8. The brushless motor testing equipment according to claim 7, characterized in that, The connection assembly includes a plug (24) and a socket (17). The plug (24) is installed in the mounting base (20). A tail cover (21) is connected to the tail of the plug (24). An anti-disengagement clip (241) is installed on the plug (24). The socket (17) is installed on the circuit board (16). The plug (24) and the socket (17) are adapted to each other. A wire is connected between the plug (24) and the current and voltage sensor (134).

9. The brushless motor testing equipment according to claim 1, characterized in that, The mounting plate (4) has a connecting plate (28) connected to its side wall. A cylinder (29) is mounted on the connecting plate (28). The end of the cylinder (29) is connected to a pressing plate (30) for braking and decelerating the brushless motor (15). The pressing plate (30) is correspondingly located on the side wall of the brushless motor (15) to be tested.

10. A method for testing a brushless motor, characterized in that, The brushless motor testing device according to any one of claims 1-9, the brushless motor testing method, comprises the following steps: S1: Align the positioning block (161) at the bottom of the brushless motor (15) under test with the positioning slot (141) of one of the test bases (14) on the main body of the equipment (1) to complete the positioning of the brushless motor (15) under test. At the same time, during the test, the next brushless motor (15) under test can be placed on another empty test base (14). S2: Drive the corresponding moving block (5) to move down along the moving groove (41) of the mounting plate (4) by the electric push rod (9), and drive the moving seat (11) and the detection component to move down synchronously; S3: The moving seat (11) moves down, causing the push rod (27) to move down synchronously. The push rod (27) squeezes the wedge block (26), causing the sliding rod (19) to slide along the support rod (18). The sliding rod (19) causes the mounting seat (20) and the plug (24) to move, so that the plug (24) is connected to the socket (17) on the circuit board (16) of the brushless motor (15) under test, realizing circuit conduction. The current and voltage sensor (134) is connected to the plug (24) through the wire, and collects the working current and voltage parameters of the brushless motor (15) under test in real time. S4: The detection component continues to move down to the elastic pad (131) to press the upper end of the brushless motor (15) under test, and the drive motor (12) is started. The drive motor (12) drives the rotating shaft (13) and the elastic pad (131) to rotate through the coupling (132), thereby driving the brushless motor (15) under test to run synchronously. The torque sensor (133) collects the output torque transmitted from the drive motor (12) to the brushless motor (15) in real time. The current and voltage sensor (134) collects the working current, no-load current, starting current and voltage stability parameters of the motor synchronously. All detection data are synchronously transmitted to the display screen (3). The core performance indicators such as the output power, efficiency and stall torque of the brushless motor (15) are calculated by the built-in algorithm of the device to complete the performance test. S5: After the test is completed, start the cylinder (29). The cylinder (29) drives the extrusion plate (30) to move and fit against the brushless motor (15) under test, and use friction to achieve rapid braking and deceleration. S6: Control the electric push rod (9) to retract, drive the corresponding moving block (5) and moving seat (11) to move upward, and the push rod (27) on this side moves upward synchronously to release the pressure on the corresponding wedge block (26). At this time, another set of moving blocks (5) moves downward synchronously under the transmission of gear (7) and rack (6). Another set of moving seats (11) drives the corresponding push rod (27) to move downward, press the other set of wedge blocks (26) on the sliding rod (19), push the sliding rod (19) to slide in the opposite direction along the support rod (18), drive the drive block (22) to slide along the inside of the mounting seat (20), and drive the drive block (22) to move downward through the cooperation of the inclined groove (221) and the straight groove (201), drive the pressing block (23) to move downward, press the anti-disengagement buckle (241) of the corresponding plug (24) to complete the unlocking. Then the plug (24) separates from the socket (17) and cuts off the circuit of this station. S7: After the other set of testing components moves down to the position, the corresponding push rod (27) squeezes the wedge block (26) and drives the sliding rod (19) to slide towards the station, completing the automatic connection, circuit conduction and performance testing of the other set of brushless motors (15) to be tested, and the dual stations run alternately throughout the process.

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