Electric automobile generator frequency converter speed regulation experiment device

Abstract

The invention belongs to the technical field of frequency converter speed regulation, and particularly relates to an electric automobile generator frequency converter speed regulation experiment device which comprises a frequency converter body, a control panel and a display screen are arranged on the front side of the frequency converter body, a plug is inserted into one side of the frequency converter body, and a detection line is arranged on one side of the plug. The frequency converter main body is also provided with a winding assembly used for accommodating the detection line. The winding assembly comprises a winding roller rotationally arranged on one side of the frequency converter body, and limiting discs are fixedly connected to the two sides of the winding roller. By utilizing the winding assembly and the clamping displacement assembly, after the speed regulation experiment is finished, the detection wire for the speed regulation experiment can be wound on the winding roller, so that the situation that the detection wire is arranged on the periphery of the frequency converter main body in a disordered state, so that the detection wire is easy to wind and is not beneficial to subsequent reuse is avoided, and meanwhile, the detection wire is convenient to use. And the process of manually storing the detection line by personnel is also omitted, so that labor is saved.

Description

Technical Field

[0001] The present invention belongs to the technical field of variable frequency speed regulation of electric vehicle generators, and specifically relates to an experimental device for variable frequency speed regulation of an electric vehicle generator. Background Art

[0002] An electric vehicle generator is the main power source of an electric vehicle. Its function is to supply power to all electrical equipment and charge the battery while the engine is running normally. The experimental device for variable frequency speed regulation of an electric vehicle generator is mainly used to simulate the operating state of an electric vehicle generator under different working conditions, and adjust the speed of the generator through a frequency converter to study key indicators such as its speed regulation performance, efficiency, and stability.

[0003] The patent with the publication number CN203519796U discloses an experimental device for variable frequency speed regulation of a multi-purpose vehicle generator, which is composed of a three-phase asynchronous motor, a movable frame, a bottom plate, and an electrical control box; a three-phase asynchronous motor, a right support seat, a left support seat, a transverse moving screw, and an electrical control box are installed on the bottom plate; a moving nut left and right positioning bushing is sleeved on the transverse moving screw, a V-shaped support plate, a left support, and a right support are installed on the fixed frame, upper beams are fixedly connected to the tops of the left and right supports, and a pressing screw device is arranged at the middle position of the upper beam; a generator positioning pressing plate is sleeved on the surface of the left support. The beneficial effects of this patent are: solving the disadvantages of large volume, high price, and poor versatility in the existing experimental device for variable frequency speed regulation of generators, reducing the manufacturing cost, not only being able to detect the performance of the generator by testing the power generation state and performance of the generator, but also being convenient for users to perform wiring operations and facilitating users to learn and master the knowledge of vehicle generators.

[0004] However, the above technical solution still has the following deficiencies in actual application:

[0005] It is necessary to connect to the vehicle generator using a detection line and then conduct an adjustment experiment. Usually, for the convenience of use, the detection line has a certain length. When the speed regulation experiment is over, the detection line may be placed around the main body of the frequency converter in a messy state, prone to tangling and other situations, which is not conducive to subsequent reuse, and it is also laborious for personnel to store the detection line. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the present invention proposes an experimental device for variable frequency speed regulation of an electric vehicle generator.

[0007] The technical solution adopted by the present invention to solve its technical problems is: an experimental device for variable-frequency speed regulation of an electric vehicle generator inverter, including an inverter main body, a control panel and a display screen are arranged on the front side of the inverter main body, a plug is inserted on one side of the inverter main body, a detection line is arranged on one side of the plug, and a winding component for storing the detection line is also arranged on the inverter main body;

[0008] The winding component includes a winding roller rotatably arranged on one side of the inverter main body, and limiting disks are fixedly connected to both sides of the winding roller;

[0009] A clamping displacement component for pulling the plug out of the jack is also arranged on the inverter main body;

[0010] The clamping displacement component includes a mounting block fixedly connected to one side of the inverter main body, a slider is slidably connected to the lower end surface of the mounting block, an electric push rod I is fixedly connected to the lower end surface of the slider, a lifting rod is fixedly connected to the piston end of the electric push rod I, adjusting blocks are slidably connected to both sides of the lifting rod, and a clamping block is rotatably arranged on one side of the lower end of the adjusting block.

[0011] Preferably, an electric push rod II is fixedly connected to one side of the lower end surface of the mounting block, and the piston end of the electric push rod II is fixedly connected to one side of the slider.

[0012] Preferably, a bidirectional threaded rod is rotatably arranged at both ends of the lifting rod, both sides of the bidirectional threaded rod are threadedly connected to the adjusting block, a motor II is fixedly connected to one end of the lifting rod, and the output end of the motor II is fixedly connected to one end of the bidirectional threaded rod.

[0013] Preferably, a motor III is fixedly connected to one side of the lower end of the adjusting block, and the output end of the motor III is fixedly connected to one side of the clamping block.

[0014] Preferably, a motor I is fixedly connected to one side of the inverter main body, and the output end of the motor I is fixedly connected to the winding roller.

[0015] Preferably, a sliding column II is slidably connected to one side of the inverter main body, a connecting block is fixedly connected to one end of the sliding column II, and pressing rollers are rotatably arranged at both ends of the connecting block.

[0016] Preferably, a spring II is sleeved on one end of the sliding column II, one end of the spring II is fixedly connected to the connecting block, and the other end is fixedly connected to the inverter main body.

[0017] Preferably, a winding anti-jamming component is also arranged on the inverter main body;

[0018] The winding anti-jamming component includes a sprocket I and a sprocket II rotatably arranged on one side of the inverter main body, chains are meshed with both the sprocket I and the sprocket II, a crank is fixedly connected to one side of the sprocket I, and one end of the crank is rotatably arranged on the inverter main body.

[0019] Preferably, a support plate is fixedly connected to one side of the inverter body, and a sliding column 1 is inserted and slidably connected on both sides of the inner wall of the support plate hole. One end of the sliding column 1 is fixedly connected to a limit plate, and one end of the sliding column 1 is sleeved with a spring 1, one end of the spring 1 is fixedly connected to the limit plate, and the other end is fixedly connected to the inner wall of the support plate hole.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The electric vehicle generator inverter speed regulation experiment device described in the present invention utilizes a winding assembly and a clamping displacement assembly to wind up the detection line used for the speed regulation experiment on a winding roller after the speed regulation experiment is completed, thereby avoiding the detection line being placed in a relatively messy state around the inverter body, which is prone to entanglement and is not conducive to subsequent reuse. At the same time, it also saves the process of manual storage of the detection line by personnel, which is more labor-saving.

[0022] 2. The electric vehicle generator inverter speed regulation experimental device described in the present invention utilizes a winding anti-stuck component. During the winding process, the crank also rotates continuously, and its end will continuously contact the detection line at the hole of the support plate and squeeze the detection line. The detection line will vibrate and will not separate from the hole of the support plate. Since the detection line continues to vibrate when winding, the detection line is not easy to get stuck and will separate from the stuck position due to its own shaking, thereby avoiding the detection line from getting stuck during the winding process due to entanglement with peripheral equipment, thereby affecting normal winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the winding roller;

[0026] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0027] Figure 4 This is a schematic diagram of a three-dimensional structure of an electric push rod;

[0028] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure at the lifting rod;

[0030] Figure 7It is a schematic three-dimensional structure diagram at the crank;

[0031] Figure 8 is Figure 7 a partial enlarged view of part C in

[0032] In the figure: 1. Inverter main body; 2. Mounting block; 3. Detection line; 4. Winding roller; 5. Electric push rod 1; 6. Plug; 7. Motor 1; 8. Sprocket 1; 9. Chain; 10. Crank; 11. Support plate; 12. Sprocket 2; 13. Slide column 1; 14. Spring 1; 15. Limit plate; 16. Electric push rod 2; 17. Lifting rod; 18. Adjusting block; 19. Motor 2; 20. Bidirectional threaded rod; 21. Motor 3; 22. Clamping block; 23. Slide column 2; 24. Spring 2; 25. Connecting block; 26. Pressing roller; 27. Control panel; 28. Display screen; 29. Slide block; 30. Limit disk. Specific embodiments

[0033] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1-8 , the present invention provides a technical solution: an experimental device for speed regulation of an electric vehicle generator inverter, including an inverter main body 1, a control panel 27 and a display screen 28 are arranged on the front side of the inverter main body 1, a plug 6 is inserted on one side of the inverter main body 1, a detection line 3 is arranged on one side of the plug 6, and a winding assembly for winding the detection line 3 is further arranged on the inverter main body 1;

[0035] The winding assembly includes a winding roller 4 rotatably arranged on one side of the inverter main body 1, and limit disks 30 are fixedly connected to both sides of the winding roller 4;

[0036] A clamping and displacement assembly for pulling the plug 6 out of the jack is further arranged on the inverter main body 1;

[0037] The clamping and displacement assembly includes a mounting block 2 fixedly connected to one side of the inverter main body 1, a slide block 29 is slidably connected to the lower end surface of the mounting block 2, an electric push rod 1 5 is fixedly connected to the lower end surface of the slide block 29, a lifting rod 17 is fixedly connected to the piston end of the electric push rod 1 5, adjusting blocks 18 are slidably connected to both sides of the lifting rod 17, and a clamping block 22 is rotatably arranged on one side of the lower end of the adjusting block 18.

[0038] In this embodiment, as Figures 1-6 shown, an electric push rod 2 16 is fixedly connected to one side of the lower end surface of the mounting block 2, and the piston end of the electric push rod 2 16 is fixedly connected to one side of the slide block 29.

[0039] Both ends of the lifting rod 17 are rotatably provided with a bidirectional threaded rod 20. Both sides of the bidirectional threaded rod 20 are threadedly connected to the adjusting block 18. One end of the lifting rod 17 is fixedly connected to a second motor 19, and the output end of the second motor 19 is fixedly connected to one end of the bidirectional threaded rod 20.

[0040] One side of the lower end of the adjusting block 18 is fixedly connected to a third motor 21, and the output end of the third motor 21 is fixedly connected to one side of the clamping block 22.

[0041] One side of the main body 1 of the frequency converter is fixedly connected to a first motor 7, and the output end of the first motor 7 is fixedly connected to the winding roller 4.

[0042] One side of the main body 1 of the frequency converter is slidably connected to a second sliding column 23. One end of the second sliding column 23 is fixedly connected to a connecting block 25. Both ends of the connecting block 25 are rotatably provided with a pressure roller 26.

[0043] One end of the second sliding column 23 is sleeved with a second spring 24. One end of the second spring 24 is fixedly connected to the connecting block 25, and the other end is fixedly connected to the main body 1 of the frequency converter.

[0044] Specifically, the electric vehicle generator is the main power source of the electric vehicle. Its function is to supply power to all electrical equipment and charge the battery when the engine is running normally. The electric vehicle generator frequency converter speed regulation experimental device is mainly used to simulate the operating state of the electric vehicle generator under different working conditions, and adjust the speed of the generator through the frequency converter to study its key indicators such as speed regulation performance, efficiency, and stability.

[0045] When the existing automobile generator frequency converter speed regulation experimental device is in use, it is necessary to connect it to the automobile generator by using the detection line 3 and then carry out the adjustment experiment. Usually, for the convenience of use, the detection line 3 has a certain length. When the speed regulation experiment is over, the detection line 3 may be placed around the main body 1 of the frequency converter in a relatively messy state, prone to entanglement and other situations, which is not conducive to subsequent reuse. And it is also quite laborious for personnel to store the detection line 3.

[0046] Therefore, to solve the above problems, when this embodiment is in use, when it is necessary to carry out a speed regulation experiment on the electric vehicle generator, one end of the detection line 3 is connected to the electric vehicle generator frequency converter, and the plug 6 is inserted into the jack on the main body 1 of the frequency converter. Then, use the control panel 27 to carry out a speed regulation experiment on the electric vehicle generator, and the experimental results will be displayed on the display screen 28.

[0047] After a speed regulation experiment is completed, the electric push rod 5 drives the lifting rod 17 to descend, so that the two clamping blocks 22 are located on both sides of the plug 6. Then, by driving the rotation of the bidirectional threaded rod 20 with the second motor 19, the two adjusting blocks 18 are driven to slide on the lifting rod 17 and approach each other, and the plug 6 can be clamped by the clamping blocks 22. Then, the electric push rod 16 drives the slider 29 to slide on the mounting block 2, so that the clamping blocks 22 drive the plug 6 to move out of the jack. Then, the third motor 21 drives the clamping blocks 22 to rotate, so that the plug 6 rotates by ninety degrees. Then, the electric push rod 5 continues to drive the plug 6 to descend, so that the plug 6 moves towards the gap between the winding roller 4 and the pressure roller 26. The plug 6 will squeeze the pressure roller 26, and the second sliding column 23 slides on the main body 1 of the frequency converter, and the second spring 24 is compressed until one end of the detection line 3 is clamped between the winding roller 4 and the pressure roller 26. At this time, by driving the rotation of the winding roller 4 with the first motor 7, the detection line 3 can be wound. The detection line 3 will always be in close contact with the winding roller 4 due to the pressure roller 26 until the detection line 3 is completely wound on the winding roller 4. Thus, after the speed regulation experiment is completed, the detection line 3 is prevented from being placed around the main body 1 of the frequency converter in a relatively messy state, which is prone to entanglement and is not conducive to subsequent reuse. At the same time, the process of manually storing the detection line 3 by personnel is also omitted, which is relatively labor-saving.

[0048] In this embodiment, as Figure 1 , Figure 7 , Figure 8 shown, a winding anti-jamming component is further provided on the main body 1 of the frequency converter;

[0049] The winding anti-jamming component includes a first sprocket 8 and a second sprocket 12 rotatably arranged on one side of the main body 1 of the frequency converter. The first sprocket 8 and the second sprocket 12 are meshed with each other. One side of the first sprocket 8 is fixedly connected with a crank 10, and one end of the crank 10 is rotatably arranged on the main body 1 of the frequency converter.

[0050] One side of the main body 1 of the frequency converter is fixedly connected with a support plate 11. Both sides of the inner wall of the hole of the support plate 11 are inserted and slidably connected with a first sliding column 13. One end of the first sliding column 13 is fixedly connected with a limiting plate 15. One end of the first sliding column 13 is sleeved with a first spring 14. One end of the first spring 14 is fixedly connected with the limiting plate 15, and the other end is fixedly connected with the inner wall of the hole of the support plate 11.

[0051] Specifically, in the above embodiment, although the detection line 3 can be wound and stored, during the winding process of the detection line 3, it may be entangled with the surrounding equipment, resulting in the detection line 3 being jammed during the winding process and affecting the normal winding. Therefore, to solve this problem, the working principle of this embodiment is as follows:

[0052] Whenever the detection line 3 is used, the detection line 3 is first passed through the hole of the support plate 11, and the detection line 3 is between the two limit plates 15. The limit plates 15 will fit tightly with the surface of the detection line 3 under the action of the spring 14. During the winding process, since the winding roller 4 continues to rotate, the sprocket 2 12 will also rotate, and drive the sprocket 1 8 and the crank 10 to rotate under the action of the chain 9. When the crank 10 rotates, its end will continuously contact the detection line 3 at the hole of the support plate 11 and squeeze the detection line 3. In addition, since the detection line 3 is The detection line 3 is limited by two limit plates 15, so even if the crank 10 continuously squeezes the detection line 3, the detection line 3 will be reset under the action of the spring 14, so the detection line 3 will vibrate and will not separate from the hole of the support plate 11. Since the detection line 3 continues to vibrate when it is wound, the detection line 3 is not easy to be stuck and will be separated from the stuck position due to its own shaking, thereby avoiding the detection line 3 from being entangled with peripheral equipment during the winding process, causing the detection line 3 to be stuck during the winding process, affecting the normal winding.

[0053] Working principle: When it is necessary to conduct a speed regulation experiment on the electric vehicle generator, one end of the detection line 3 is connected to the electric vehicle generator inverter, and the plug 6 is inserted into the socket on the inverter body 1, and then the control panel 27 is used to conduct a speed regulation experiment on the electric vehicle generator, and the experimental results will be displayed on the display screen 28; when a speed regulation experiment is completed, the electric push rod 1 5 is used to drive the lifting rod 17 to descend, so that the two clamping blocks 22 are on both sides of the plug 6, and then the motor 2 19 drives the bidirectional threaded rod 20 to rotate, so that the two adjustment blocks 18 are driven to slide on the lifting rod 17 and approach each other, and the clamping block 22 can be used to clamp the plug 6, and then the electric push rod is used The second slide block 16 drives the slider 29 to slide on the mounting block 2, so that the clamping block 22 drives the plug 6 to move out of the socket, and then the motor three 21 drives the clamping block 22 to rotate, so that the plug 6 rotates ninety degrees, and then the electric push rod 15 continues to drive the plug 6 to descend, so that the plug 6 moves to the gap between the winding roller 4 and the pressure roller 26, and the plug 6 will squeeze the pressure roller 26. The slide column 23 slides on the inverter body 1, and the spring 24 is compressed until one end of the detection line 3 is clamped between the winding roller 4 and the pressure roller 26. At this time, the winding roller 4 is driven to rotate by the motor 17 to reel the detection line 3. The detection line 3 will always be in close contact with the winding roller 4 due to the pressure roller 26 until the detection line 3 is completely reeled. The detection line 3 is wound on the winding roller 4, thereby avoiding the situation that after the speed regulation experiment is over, the detection line 3 is placed around the inverter body 1 in a relatively messy state, which is easy to get tangled and is not conducive to subsequent reuse. At the same time, it also saves the process of personnel manually storing the detection line 3, which is more labor-saving. Whenever the detection line 3 is used, the detection line 3 is first passed through the hole of the support plate 11, and the detection line 3 is between the two limit plates 15. The limit plates 15 will fit tightly with the surface of the detection line 3 under the action of the spring 14. During the winding process, since the winding roller 4 continues to rotate, the sprocket 2 12 will also rotate, and drive the sprocket 1 8 and the crank 10 to rotate under the action of the chain 9. The crank 10 When rotating, its end will continuously contact with the detection line 3 at the hole of the support plate 11 and squeeze the detection line 3, and since the detection line 3 is limited by the two limit plates 15, even if the crank 10 continuously squeezes the detection line 3, the detection line 3 will be reset under the action of the spring 14, so the detection line 3 will vibrate and will not separate from the hole of the support plate 11. Since the detection line 3 continues to vibrate when winding, the detection line 3 is not easy to be stuck and will be separated from the stuck position due to the shaking generated by itself, thereby avoiding the detection line 3 from being entangled with peripheral equipment during the winding process, causing the detection line 3 to be stuck during the winding process, affecting the normal winding.

[0054] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An experimental device for speed regulation of an electric vehicle generator frequency converter, comprising a frequency converter main body (1), characterized in that: On the front side of the frequency converter main body (1), there is an operation panel (27) and a display screen (28). One side of the frequency converter main body (1) is plugged with a plug (6). One side of the plug (6) is provided with a detection line (3). The frequency converter main body (1) is also provided with a winding assembly for storing the detection line (3). The winding assembly includes a winding roller (4) rotatably arranged on one side of the frequency converter main body (1). Both sides of the winding roller (4) are fixedly connected with limiting disks (30). The frequency converter main body (1) is also provided with a clamping displacement assembly for pulling the plug (6) out of the jack. The clamping displacement assembly includes a mounting block (2) fixedly connected to one side of the frequency converter main body (1). The lower end face of the mounting block (2) is slidably connected with a slider (29). The lower end face of the slider (29) is fixedly connected with a first electric push rod (5). The piston end of the first electric push rod (5) is fixedly connected with a lifting rod (17). Both sides of the lifting rod (17) are slidably connected with adjusting blocks (18). One side of the lower end of the adjusting block (18) is rotatably provided with a clamping block (22).

2. The speed regulation experimental device for an electric vehicle generator frequency converter according to claim 1, wherein: One side of the lower end face of the mounting block (2) is fixedly connected with a second electric push rod (16). The piston end of the second electric push rod (16) is fixedly connected with one side of the slider (29).

3. The speed regulation experimental device for an electric vehicle generator frequency converter according to claim 1, characterized in that: Both ends of the lifting rod (17) are rotatably provided with a bidirectional threaded rod (20). Both sides of the bidirectional threaded rod (20) are threadedly connected with the adjusting blocks (18). One end of the lifting rod (17) is fixedly connected with a second motor (19). The output end of the second motor (19) is fixedly connected with one end of the bidirectional threaded rod (20).

4. An experimental device for speed regulation of an electric vehicle generator frequency converter according to claim 1, characterized in that: One side of the lower end of the adjusting block (18) is fixedly connected with a third motor (21). The output end of the third motor (21) is fixedly connected with one side of the clamping block (22).

5. An experimental device for variable-frequency speed regulation of an electric vehicle generator inverter, characterized in that: One side of the frequency converter main body (1) is fixedly connected with a first motor (7). The output end of the first motor (7) is fixedly connected with the winding roller (4).

6. The speed regulation experimental device for an electric vehicle generator frequency converter according to claim 1, wherein: One side of the frequency converter main body (1) is slidably connected with a second sliding column (23). One end of the second sliding column (23) is fixedly connected with a connecting block (25). Both ends of the connecting block (25) are rotatably provided with pressing rollers (26).

7. An experimental device for speed regulation of an electric vehicle generator frequency converter according to claim 6, characterized in that: One end of the second sliding column (23) is sleeved with a second spring (24). One end of the second spring (24) is fixedly connected with the connecting block (25), and the other end is fixedly connected with the frequency converter main body (1).

8. An experimental device for speed regulation of an electric vehicle generator frequency converter according to claim 1, characterized in that: The frequency converter main body (1) is also provided with a winding anti - jamming assembly. The winding anti - jamming assembly includes a first sprocket (8) and a second sprocket (12) rotatably arranged on one side of the frequency converter main body (1). Both the first sprocket (8) and the second sprocket (12) are meshed with a chain (9). One side of the first sprocket (8) is fixedly connected with a crank (10). One end of the crank (10) is rotatably arranged on the frequency converter main body (1).

9. An experimental device for speed regulation of an electric vehicle generator frequency converter according to claim 8, characterized in that: One side of the main body (1) of the frequency converter is fixedly connected with a support plate (11). Both sides of the inner wall of the hole of the support plate (11) are inserted and slidably connected with a first sliding column (13). One end of the first sliding column (13) is fixedly connected with a limiting plate (15). One end of the first sliding column (13) is sleeved with a first spring (14). One end of the first spring (14) is fixedly connected with the limiting plate (15), and the other end is fixedly connected with the inner wall of the hole of the support plate (11).

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