A new energy automobile motor testing device

Abstract

This invention discloses a testing device for a new energy vehicle motor, relating to the field of new energy vehicle technology. It includes a base plate, a transmission mechanism mounted on the base plate, a sliding pile mounted on the transmission mechanism, an undulating mechanism mounted on the sliding pile, and a motor under test mounted on the undulating mechanism. The transmission mechanism is axially mounted on the surface of the base plate. The sliding pile is movably connected to the transmission mechanism, which drives the sliding pile to move axially along the base plate. The motor under test is fixed to the end face of the undulating mechanism away from the sliding pile and moves up and down on the surface of the sliding pile with the undulating mechanism. A connecting mechanism is provided on the motor shaft of the motor under test, connecting the motor under test to a vibration mechanism to simulate the vibration experienced at the output end of the motor under test. This invention tests the motor under test by setting up a transmission mechanism, an undulating mechanism, and a vibration mechanism on the device, replacing the traditional method of measuring with a fixed motor, thus improving the realism and simulation of the test contact and making the test data more reliable.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle technology, and specifically to a new energy vehicle motor testing device. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as a power source (or use conventional vehicle fuels but adopt new on-board power devices), integrating advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technical principles, new technologies, and new structures. New energy vehicles include pure electric vehicles, range-extended electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, hydrogen engine vehicles, and other new energy vehicles. The electric motor is a very important component in the automotive industry. The operation of the electric motor enables the vehicle to move, and the performance of the electric motor directly affects the lifespan and performance of the vehicle.

[0003] Existing new energy vehicles are generally equipped with energy recovery systems, which can recover energy during vehicle coasting and braking. However, these systems place more stringent demands on the performance of the motor. Current motor testing equipment typically fixes the motor in place and performs speed stability tests and other tests to simulate the motor's rotation during vehicle coasting and braking.

[0004] However, when a car brakes, decelerates, or coasts, the motor generates electricity through the vehicle's inertia. This requires the motor to withstand external forces when it is not operating autonomously. The testing environment differs significantly from the actual usage environment, resulting in limited realism in the test. Therefore, a device is needed to improve the simulation of motor testing. Summary of the Invention

[0005] Based on this, the purpose of this invention is to provide a new energy vehicle motor testing device, which aims to solve the problem that current energy recovery systems have high requirements for motor performance, and the current testing environment cannot obtain the true data of the motor when the car is braking, decelerating, and coasting.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a new energy vehicle motor testing device, characterized in that it includes a base plate, a transmission mechanism disposed on the base plate, a sliding pile disposed on the transmission mechanism, an undulating mechanism disposed on the sliding pile, and a motor to be tested disposed on the undulating mechanism.

[0007] The transmission mechanism is axially mounted on the surface of the base plate. The sliding pile is movably connected to the transmission mechanism. The transmission mechanism drives the sliding pile to move axially along the base plate. The motor under test is fixed to the end face of the undulating mechanism away from the sliding pile and moves up and down on the surface of the sliding pile with the undulating mechanism. A connecting mechanism is provided on the motor shaft of the motor under test. The motor under test is connected to the vibration mechanism through the connecting mechanism to simulate the vibration received at the output end of the motor under test.

[0008] In summary, the new energy vehicle motor testing device proposed according to the present invention tests the motor under test by setting a transmission mechanism, an undulating mechanism, and a vibration mechanism on the device, replacing the traditional fixed engine measurement method, thereby improving the realism and simulation of the test contact and making the test data more reliable. Specifically, the testing device of the present invention includes a base plate, a transmission mechanism set on the base plate, a sliding pile set on the transmission mechanism, an undulating mechanism set on the sliding pile, and the motor under test set on the undulating mechanism; the transmission mechanism is set on the surface of the base plate along the axial direction, the sliding pile is movably connected to the transmission mechanism, the transmission mechanism drives the sliding pile to move along the axial direction of the base plate, the motor under test is fixed on the end face of the undulating mechanism away from the sliding pile, and moves up and down on the surface of the sliding pile with the undulating mechanism, the motor shaft of the motor under test is provided with a connecting mechanism, and the motor under test is connected to the vibration mechanism through the connecting mechanism to simulate the vibration of the output end of the motor under test. The design of the transmission mechanism and sliding piles effectively simulates the forward and backward displacement acceleration of the motor under test, mimicking the motion state of the motor during vehicle deceleration. The undulating mechanism moves the motor under test, simulating vehicle undulations. The vibration mechanism simulates the vibration experienced by the output end of the motor under test during vehicle braking and deceleration, as well as the vibration feedback from the road surface. All these mechanisms enhance the realism of the testing environment, making the test data more authentic and reliable.

[0009] Furthermore, the transmission mechanism includes a first motor located at one end of the base plate and a threaded rod fixed to the motor shaft of the first motor. The threaded rod is axially disposed on the base plate and passes through the sliding pile. The first motor drives the threaded rod to rotate, thereby causing the sliding pile to move along the threaded rod.

[0010] Furthermore, a threaded hole is provided in the middle of the sliding pile, penetrating its front and rear end faces. The threaded hole and the threaded rod are connected by a thread to move along the axial direction of the threaded rod. Slide tracks are provided on both sides of the threaded hole.

[0011] Furthermore, both sides of the threaded rod are provided with slide rails that conform to the shape of the slide track, and the sliding pile moves axially through the slide rails and the threaded rod.

[0012] Furthermore, the undulating mechanism includes a fixed plate disposed above the sliding pile, a rod passing through the fixed plate and connected to the sliding pile, and a first elastic element sleeved on the rod, with rods provided at the corners of the fixed plate.

[0013] Furthermore, the end face of the fixing plate away from the sliding pile is provided with a first limiting plate and a second limiting plate, and the motor to be tested passes through the first limiting plate and the second limiting plate through the motor shaft to be fixed between the first limiting plate and the second limiting plate.

[0014] Furthermore, a first hinge ring and a second hinge ring are provided between the first limiting plate and the second limiting plate. The first hinge ring and the second hinge ring are arranged around the motor under test to prevent the motor under test from falling off.

[0015] Furthermore, the end of the motor under test near the second limiting plate is provided with a connecting mechanism. The connecting mechanism includes an extension rod connected to the motor shaft of the motor under test, a fixing ring provided on the extension rod, and a connecting rod provided on the fixing ring for connecting a vibration mechanism. The connecting rods are symmetrically arranged on both sides of the fixing ring.

[0016] Furthermore, the vibration mechanism includes a support assembly and a vibration component disposed in the support assembly. The support assembly is connected to the connecting rod to support the vibration component. The support assembly includes a first fixed rod rotatably connected to the connecting rod, a second fixed rod disposed on both sides of the first fixed rod, a third fixed rod hinged to the second fixed rod, and a fourth fixed rod fixedly connected to the third fixed rod. A limit ring is connected to one end of the fourth fixed rod away from the third fixed rod, and a rotating rod is rotatably connected to the inner wall of the limit ring.

[0017] Furthermore, the vibration assembly includes a counterweight block disposed in the middle of the rotating rod and a second motor disposed at the end of the rotating rod away from the counterweight block. The second motor drives the counterweight block to rotate, thereby causing the connecting rod to vibrate, and in turn, causing the motor under test to vibrate.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a three-dimensional structural diagram of a motor testing device provided in one embodiment of the present invention;

[0021] Figure 2 A three-dimensional structural diagram of the undulation mechanism in the motor testing device.

[0022] Figure 3 This is a schematic diagram of the internal structure of the sliding pile in the motor testing device.

[0023] Figure 4 This is a schematic diagram of the structure of the fixing plate in the motor testing device;

[0024] Figure 5 This is a schematic diagram of the motor under test in the motor testing device.

[0025] Figure 6 This is a schematic diagram of the vibration mechanism in the motor testing device.

[0026] Component symbol explanation in the attached diagram:

[0027] 1. Base plate, 2. Slide rail, 3. Support block, 4. First motor, 5. Threaded rod, 6. Sliding pile, 7. Threaded hole, 8. Slide track, 9. Elevation mechanism, 901. Insert rod, 902. Fixing plate, 903. First elastic element, 904. First limiting plate, 905. First hinge ring, 906. Second hinge ring, 907. Motor under test, 908. Extension rod, 909. Second limiting plate, 910. Connecting mechanism, 101. Fixing ring, 102. Conductive slip ring, 103. Connecting rod, 104. Vibration mechanism, 105. Through groove, 401. First fixing rod, 402. Second fixing rod, 403. Third fixing rod, 404. Fourth fixing rod, 405. Limiting ring, 406. Rotating rod, 407. Counterweight block, 408. Second motor, 409. Connecting ring, 410. Second elastic element, 411. Hinge rod. Detailed Implementation

[0028] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0029] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Please see Figure 1-6 The image shows a new energy vehicle motor testing device provided in an embodiment of the present invention. The testing device includes a base plate 1, a transmission mechanism disposed on the base plate 1, a sliding pile 6 disposed on the transmission mechanism, an undulating mechanism 9 disposed on the sliding pile 6, and a motor 907 to be tested disposed on the undulating mechanism 9, wherein:

[0032] The transmission mechanism is axially disposed on the surface of the base plate 1. The sliding pile 6 is movably connected to the transmission mechanism. The transmission mechanism drives the sliding pile 6 to move axially along the base plate 1. The motor under test 907 is fixed to the end face of the undulating mechanism 9 away from the sliding pile 6 and moves up and down on the surface of the sliding pile 6 with the undulating mechanism 9. The motor shaft of the motor under test 907 is provided with a connecting mechanism 910. The motor under test is connected to the vibration mechanism 104 through the connecting mechanism 910 to simulate the vibration received at the output end of the motor under test 907.

[0033] A transmission mechanism is fixedly connected to the upper side of the base plate 1. The transmission mechanism includes a first motor 4 located at one end of the base plate and a threaded rod 5 fixed to the motor shaft of the first motor 4. A support block 3 is fixedly connected to the upper front surface of the base plate 1, and a first motor 4 is fixedly connected to the upper rear surface of the base plate 1. The output end of the first motor 4 is fixedly connected to the threaded rod 5. The front end of the threaded rod 5 is rotatably connected to the inner wall of the support block 3 through a bearing. A sliding pile 6 is also provided on the upper side of the base plate 1. A through threaded hole 7 is opened in the middle of the sliding pile 6. Two slide rails 8 are provided on the lower side of the base plate 1. The inner wall of the slide rail 8 is slidably connected to the outer wall of the slide rail 2. The slide rail 2 and the slide rail 8 are shaped accordingly. The inner wall of the threaded hole 7 is threadedly connected to the outer wall of the threaded rod 5. The first motor 4 drives the threaded rod 5 to rotate, thereby allowing the sliding pile 6 to move axially along the slide rail 2 and the threaded rod 5. An undulating mechanism 9 is provided on the upper surface of the sliding pile 6.

[0034] The undulating mechanism 9 includes a fixed plate 902 disposed above the sliding pile 6, an insert rod 901 passing through the fixed plate 902 and connected to the sliding pile 6, and a first elastic element 903 sleeved on the insert rod 901. Insert rods 901 are provided at the corners of the fixed plate 902. The lower end of the insert rod 901 is fixedly connected to the upper surface of the sliding pile 6, and the fixed plate 902 is slidably connected to the outer wall of the insert rod 901. The first elastic element 903 is fixedly connected to the lower surface of the fixed plate 902, and the lower end of the first elastic element 903 is fixedly connected to the upper surface of the sliding pile 6.

[0035] The upper surface of the fixed plate 902 is provided with a first limiting plate 904 and a second limiting plate 909. A second hinge ring 906 is fixedly connected to the upper surface of the fixed plate 902. A first hinge ring 905 is provided at the left end of the second hinge ring 906. A motor under test 907 is placed between the second hinge ring 906 and the first hinge ring 905. The left side of the motor under test 907 is in contact with the outer wall of the first limiting plate 904. A connecting mechanism 406 is fixedly connected to the output end of the motor shaft of the motor under test 907. The connecting mechanism 910 includes an extension rod 908 connected to the motor shaft of the motor under test 907, a fixed ring 101 provided on the extension rod 908, and a connecting rod 103 provided on the fixed ring 101 for connecting the vibration mechanism 104. The connecting rod 103 is symmetrically arranged on both sides of the fixed ring 101. A second limiting plate 909 is provided on the outer side of the middle part of the extension rod 908. The lower side of the second limiting plate 909 is fixedly connected to the upper surface of the fixing plate 902. The inner wall of the second limiting plate 909 does not contact the outer wall of the extension rod 908. The right end of the extension rod 908 passes through the second limiting plate 909.

[0036] Furthermore, the fixing ring 101 is a tubular structure disposed on the surface of the extension rod 908. The outer wall of the extension rod 908 is fixedly connected to the inner wall of the fixing ring 101. A conductive slip ring 102 is also fixedly connected to the outer wall of the extension rod 908. Two connecting rods 103 are respectively disposed on the upper side and the lower side of the outer wall of the fixing ring 101. A vibration mechanism 104 is disposed at the end of each of the two connecting rods 103 away from the fixing ring 101. A through groove 105 is opened on the upper surface of the fixing plate 902 at the lower side of the vibration mechanism 104.

[0037] Furthermore, the vibration mechanism 104 includes a support assembly and a vibration component disposed within the support assembly. The support assembly is connected to the connecting rod 103 to support the vibration component. The support assembly includes a first fixed rod 401 rotatably connected to the connecting rod 103, second fixed rods 402 disposed on both sides of the first fixed rod 401, a third fixed rod 403 hinged to the second fixed rod 402, and a fourth fixed rod 404 fixedly connected to the third fixed rod 403. A limit ring 405 is connected to one end of the fourth fixed rod 404 away from the third fixed rod 403. A rotating rod 406 is rotatably connected to the inner wall of the limit ring 405. The vibration component includes a counterweight 407 disposed in the middle of the rotating rod 406 and a second motor 408 disposed at one end of the rotating rod 406 away from the counterweight 407. The second motor 408 drives the counterweight 407 to rotate, thereby causing the connecting rod 103 to vibrate, which in turn drives the motor 907 under test to vibrate.

[0038] It is worth noting that the second motor 408 is also provided with a connecting ring 409 on its exterior. The second motor 408 is connected to the inner wall of the connecting ring 409. The output end of the second motor 408 is fixed to the rotating rod 406 to drive the counterweight 407 to rotate. The connecting ring 409 is also connected to the first fixed rod 401 through a second elastic element 410 and a hinge rod 411. One end of the hinge rod 411 is connected to the outer wall of the first fixed rod 401 through a torsion spring, and the lower surface of the other end is fixedly connected to the second elastic element 410. The end of the second elastic element 410 away from the hinge rod 411 is fixed to the connecting ring 409.

[0039] Specifically, the distance between the lower surface of the groove 105 and the outer wall of the extension rod 908 is greater than the sum of the lengths of the connecting rod 103 and the hinge rod 411. The length of the connecting rod 103 is greater than the sum of the lengths of the rotating rod 406 and the second motor 408. The force required for the torsion spring to deform at the connection between the hinge rod 411 and the first fixed rod 401 is less than the sum of the weights of the second motor 408, the connecting ring 409, and the limiting ring 405. This is to prevent the vibration mechanism 104 from colliding with the fixed plate 902 and falling off during vibration testing.

[0040] In use, the first hinge ring 905 and the second hinge ring 906 are separated. The motor under test 907 is placed between the second hinge ring 906 and the first hinge ring 905, and then the first hinge ring 905 and the second hinge ring 906 are fixed. The second motor 408 is a motor with a built-in electromagnetic brake. The output terminal of the second motor 408 is electrically connected to the output terminal of the conductive slip ring 102, and the output terminal of the conductive slip ring 102 is connected to the mains power. The motor under test 907 is started to operate, causing the motor under test body 907 to drive the extension rod 908 and the connecting mechanism 9 on the surface of the extension rod 908. 10. Conduct a low-speed rotation output test. Before the test, start the second motor 408 to drive the rotating rod 406 and the counterweight 407 to rotate rapidly. Due to the rapid rotation of the counterweight 407, the angular momentum is conserved, and the hinge rod 411 and the second elastic element 410 can provide some support force to the second motor 408. This will cause the rotating rod 406, the second motor 408 and other structures to maintain their orientation during rotation. This makes the entire vibration mechanism 104 a counterweight part as it follows the rotation of the extension rod 908. This makes the rotation of the extension rod 908 subject to some resistance, making it more realistic.

[0041] When simulating the effect of braking deceleration on the motor, the second motor 408 only needs to be switched off instantaneously while the extension rod 908 is rotating. Due to the presence of the brake, the second motor 408 will cause the rotating rod 406 and the counterweight 407 to stop rotating instantaneously. At this time, the effect caused by the rapid rotation of the counterweight 407 disappears. The torsion spring at the connection between the first fixed rod 401 and the hinge rod 411 is insufficient to maintain the stability of the second motor 408. As a result, the second motor 408 will be quickly thrown outward due to centrifugal force, causing it to stretch the second elastic element 410. This will cause the second motor 408 to shake violently before it stabilizes after being thrown outward rapidly. The second motor 408 drives the hinge rod 411, the second fixed rod 402, and the first fixed rod 401 to generate violent vibrations, which are transmitted to the connecting rod 103, the fixed ring 101, and the extension rod 908, generating a thrust on the rotating extension rod 908. Since the extension rod 908 is fixedly connected to the output end of the motor under test 907, the extension rod 908 does not move, but the stability of the output end of the motor under test 907 can be detected, achieving the effect of testing the stability of the motor under test 907 during braking. The test process is similar to the shaking and bumping generated by the vehicle during braking, which improves the simulation of the test.

[0042] Furthermore, the second motor 408 can be repeatedly turned on and off during the test, so that the second motor 408 drives the counterweight 407 to rotate and momentarily stops the rotation of the counterweight 407 to simulate the effect of the motor under test 907 during the car's point braking.

[0043] Furthermore, when the extension rod 908 is affected by the shaking of the second motor 408, although the extension rod 908 may not move relative to the test motor 907, the shaking force of the second motor 408 will be transmitted to the fixed plate 902 through the test motor 907, causing the fixed plate 902 to slide up and down on the surface of the insertion rod 901 under the elastic support of the first elastic element 903, simulating the up and down shaking of the car body due to inertia when the car brakes, thereby increasing the realism;

[0044] Furthermore, while starting and stopping the second motor 408, the first motor 4 can be connected to the mains power. Starting the first motor 4 drives the threaded rod 5 to rotate, causing the sliding pile 6 to slide back and forth quickly on the upper side of the base plate 1 and then decelerate. This, combined with the vibration of the fixed plate 902 and the effect of the vibration mechanism 104 on the extension rod 908, simulates the effect of inertia on the motor 907 under test when the vehicle decelerates and brakes.

[0045] Furthermore, this device can repeatedly test the motor 907 under test, thereby increasing the realism of the test.

[0046] In summary, the new energy vehicle motor testing device proposed according to the present invention tests the motor under test by setting a transmission mechanism, an undulating mechanism, and a vibration mechanism on the device, replacing the traditional fixed engine measurement method, thereby improving the realism and simulation of the test contact and making the test data more reliable. Specifically, the testing device of the present invention includes a base plate, a transmission mechanism set on the base plate, a sliding pile set on the transmission mechanism, an undulating mechanism set on the sliding pile, and the motor under test set on the undulating mechanism; the transmission mechanism is set on the surface of the base plate along the axial direction, the sliding pile is movably connected to the transmission mechanism, the transmission mechanism drives the sliding pile to move along the axial direction of the base plate, the motor under test is fixed on the end face of the undulating mechanism away from the sliding pile, and moves up and down on the surface of the sliding pile with the undulating mechanism, the motor shaft of the motor under test is provided with a connecting mechanism, and the motor under test is connected to the vibration mechanism through the connecting mechanism to simulate the vibration of the output end of the motor under test. The design of the transmission mechanism and sliding piles effectively simulates the forward and backward displacement acceleration of the motor under test, mimicking the motion state of the motor during vehicle deceleration. The undulating mechanism moves the motor under test, simulating vehicle undulations. The vibration mechanism simulates the vibration experienced by the output end of the motor under test during vehicle braking and deceleration, as well as the vibration feedback from the road surface. All these mechanisms enhance the realism of the testing environment, making the test data more authentic and reliable.

[0047] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0048] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A testing device for a new energy vehicle motor, characterized in that, It includes a base plate, a transmission mechanism disposed on the base plate, a sliding pile disposed on the transmission mechanism, an undulating mechanism disposed on the sliding pile, and a motor to be tested disposed on the undulating mechanism; The transmission mechanism is axially mounted on the surface of the base plate. The sliding pile is movably connected to the transmission mechanism. The transmission mechanism drives the sliding pile to move axially along the base plate. The motor under test is fixed to the end face of the undulating mechanism away from the sliding pile and moves up and down on the surface of the sliding pile with the undulating mechanism. A connecting mechanism is provided on the motor shaft of the motor under test. The motor under test is connected to the vibration mechanism through the connecting mechanism to simulate the vibration received at the output end of the motor under test.

2. The new energy vehicle motor testing device according to claim 1, characterized in that, The transmission mechanism includes a first motor located at one end of the base plate and a threaded rod fixed to the motor shaft of the first motor. The threaded rod is axially located on the base plate and passes through the sliding pile. The first motor drives the threaded rod to rotate, thereby causing the sliding pile to move along the threaded rod.

3. The new energy vehicle motor testing device according to claim 2, characterized in that, The sliding pile has a threaded hole in the middle that passes through its front and rear ends. The threaded hole and the threaded rod are connected by a thread to move along the axial direction of the threaded rod. Slides are provided on both sides of the threaded hole.

4. The new energy vehicle motor testing device according to claim 3, characterized in that, Both sides of the threaded rod are provided with slide rails that conform to the shape of the slide rail, and the sliding pile moves axially through the slide rails and the threaded rod.

5. The new energy vehicle motor testing device according to claim 1, characterized in that, The undulating mechanism includes a fixed plate disposed above the sliding pile, a rod passing through the fixed plate and connected to the sliding pile, and a first elastic element sleeved on the rod. The fixed plate is provided with rods at its corners.

6. The new energy vehicle motor testing device according to claim 5, characterized in that, The end face of the fixed plate away from the sliding pile is provided with a first limiting plate and a second limiting plate. The motor under test passes through the first limiting plate and the second limiting plate through the motor shaft to be fixed between the first limiting plate and the second limiting plate.

7. The new energy vehicle motor testing device according to claim 6, characterized in that, A first hinge ring and a second hinge ring are also provided between the first limiting plate and the second limiting plate. The first hinge ring and the second hinge ring are arranged around the motor under test to prevent the motor under test from falling off.

8. The new energy vehicle motor testing device according to claim 7, characterized in that, The motor under test is provided with a connecting mechanism at one end near the second limiting plate. The connecting mechanism includes an extension rod connected to the motor shaft of the motor under test, a fixing ring provided on the extension rod, and a connecting rod provided on the fixing ring for connecting a vibration mechanism. The connecting rods are symmetrically arranged on both sides of the fixing ring.

9. The new energy vehicle motor testing device according to claim 8, characterized in that, The vibration mechanism includes a support assembly and a vibration component disposed in the support assembly. The support assembly is connected to the connecting rod to support the vibration component. The support assembly includes a first fixed rod rotatably connected to the connecting rod, a second fixed rod disposed on both sides of the first fixed rod, a third fixed rod hinged to the second fixed rod, and a fourth fixed rod fixedly connected to the third fixed rod. A limit ring is connected to one end of the fourth fixed rod away from the third fixed rod, and a rotating rod is rotatably connected to the inner wall of the limit ring.

10. The new energy vehicle motor testing device according to claim 9, characterized in that, The vibration assembly includes a counterweight block located in the middle of the rotating rod and a second motor located at the end of the rotating rod away from the counterweight block. The second motor drives the counterweight block to rotate, thereby causing the connecting rod to vibrate, which in turn drives the motor under test to vibrate.

Images