A High-Voltage Electrical State Detection Device and Method for New Energy Vehicles

Abstract

The present invention discloses a high-voltage electrical state detection device and method for new energy vehicles, belonging to the technical field of new energy vehicle detection equipment, which includes: a detection base, one end of which is provided with an installation recess, and a plurality of positioning frames are circumferentially distributed inside the installation recess. A limiting spring is connected between the positioning frame and the detection base. The positioning frame is used for end-fixing the vehicle motor. A vibration detection mechanism is arranged on one side of the detection base. The vibration detection mechanism is in contact installation with the vehicle motor and conducts main detection on the working state of the vehicle motor. A load adjustment component is also arranged on the detection base on the side of the output shaft of the vehicle motor. A current sensor and a voltage sensor are arranged on the detection base, and both the current sensor and the voltage sensor are connected to the vehicle motor; it can realize the detection of the safety and reliability of the vehicle motor, and the additionally arranged load adjustment component can assist in test adjustment and expand the test range.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy vehicle detection equipment, and specifically relates to a new energy vehicle high-voltage electrical state detection device and method. Background Art

[0002] With the rapid development and popularization of new energy vehicles, the state detection technology of their high-voltage electrical systems has also received extensive attention and research. The high-voltage electrical system of new energy vehicles mainly includes key components such as battery packs, motors, and electronic control systems. Its working principle and composition are quite different from those of the fuel systems of traditional vehicles. Therefore, special state detection methods are required for monitoring and maintenance. In the prior art, the detection of new energy vehicles still remains at links such as insulation testing, motor damage, and control system failures. The limitations of the high-voltage electrical state testing of new energy vehicles are relatively high, and it is impossible to provide reliability and safety tests under different environmental simulations. Therefore, those skilled in the art have provided a new energy vehicle high-voltage electrical state detection device and method to solve the problems raised in the above background art. Summary of the Invention

[0003] To achieve the above object, the present invention provides the following technical solution: A new energy vehicle high-voltage electrical state detection device, which includes: a detection base, one end of which is provided with an installation recess, and a plurality of positioning frames are circumferentially distributed inside the installation recess. A limiting spring is connected between the positioning frame and the detection base. The positioning frame is used for end-fixing the vehicle motor. A vibration detection mechanism is arranged on one side of the detection base. The vibration detection mechanism is in contact with and installed on the vehicle motor, and conducts main detection on the working state of the vehicle motor. A load adjustment component is also arranged on the detection base on the side of the output shaft of the vehicle motor. A current sensor and a voltage sensor are arranged on the detection base. Both the current sensor and the voltage sensor are connected to the vehicle motor.

[0004] Preferably, the vibration detection mechanism includes: two side transmission frames which are symmetrically arranged left and right. Adjusting substrates are slidably arranged on both side transmission frames. An outer housing is fixed on the adjusting substrate. A transmission shaft is horizontally rotatably arranged above the interior of the outer housing. A driving motor is fixed on the outer housing. The output end of the driving motor is connected and driven to the transmission shaft through gear meshing. A threaded rod is rotatably arranged inside the outer housing. One end of the threaded rod is meshed and driven with the transmission shaft through bevel gears. And two limiting rods are symmetrically fixed inside the outer housing. A machine plate is slidably arranged on the limiting rods. One end of the threaded rod is slidably connected to the machine plate through threaded meshing. A frame plate is fixed on the detection base, and touch monitoring and pressing components are fixed on both the frame plate and the machine plate.

[0005] Preferably, the touch monitoring and pressing assembly includes: a mounting base, inside which a plurality of feeding cylinders are arranged in a row. The feeding cylinders are vertically fixed inside the mounting base, and a piston is slidably arranged inside the feeding cylinder. One end of the piston is fixed with a pressing plate. The feeding cylinders are all connected to an external booster pump through air pressure pipes. One side of the pressing plate is provided with a pressure pad through a connecting spring. A plurality of pressure sensors are fixed on the pressure pad, and a plurality of pressing heads are arranged on the pressing plate, and the pressing heads can contact and abut against the pressure sensors.

[0006] Preferably, the three touch monitoring and pressing assemblies can correspondingly monitor and form three groups of pressure change data. The two sides of the mounting base are rotatably provided with connecting arms, and a limiting frame is rotatably arranged on the connecting arms. A connecting insert is provided on the vehicle motor, and one end of the limiting frame can be clamped and fixed with the connecting insert.

[0007] Preferably, a temperature sensor and a noise detection device are further arranged inside the mounting base.

[0008] Preferably, the load adjustment assembly includes: a mounting body, one end of which is sleeved outside the output shaft of the vehicle motor. A circulating cavity is embedded and fixed inside the mounting body, and the output shaft of the vehicle motor extends into the circulating cavity. A telescopic ejector rod is horizontally fixed inside the mounting body, and a load-bearing box is fixed below its interior. A plurality of load-bearing blocks are arranged in a row inside the load-bearing box. A flat key is detachably fixed on the output shaft of the vehicle motor, and the load-bearing blocks can be slidably connected to the output shaft of the vehicle motor through the flat key.

[0009] Preferably, the load-bearing box is further provided with eccentric blocks.

[0010] Preferably, a usage method of a new energy vehicle high-voltage electrical state detection device includes the following steps:

[0011] Step 1: Placement of the vehicle motor. The end of the vehicle motor is clamped and fixed on the detection base through a positioning frame. At this time, the vibration detection mechanism is in constant-pressure contact and abutment with the circumferential periphery of the vehicle motor, and the load adjustment assembly is sleeved outside the output shaft of the vehicle motor;

[0012] Step 2: Set the motor speed and load state. According to the test requirements, control the speed of the vehicle motor by adjusting the output voltage value of the constant-voltage source and the output current value of the constant-current source. Among them, the load adjustment assembly can correspondingly install different loads on the output shaft of the vehicle motor;

[0013] Step 3: Vibration detection: The three touch-sensitive monitoring and pressure components simultaneously monitor the micro-vibration generated by the automobile motor during operation. The limit frames on the touch-sensitive monitoring and pressure components can be adjusted one by one to fix the automobile motor at different angles, and then the data can be recorded. At the same time, the temperature sensor and noise detection device can simultaneously monitor the working temperature and working noise.

[0014] Step 4: Repeat steps 2 and 3 to monitor the current and voltage of the automobile motor.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention mainly tests the stability and installability of the high-voltage electrical state of the automobile motor. The vibration detection mechanism mainly arranged can combine three sets of pressure change data to perform three-dimensional simulation and amplification of the working micro-vibration of the automobile motor, so as to realize the safety and reliability detection of the automobile motor. The load-bearing adjustment component also arranged can assist in test adjustment and expand the test range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the positioning frame in the present invention;

[0019] Figure 3 It is a structural schematic diagram of the vibration detection mechanism in the present invention;

[0020] Figure 4 It is a structural schematic diagram of the touch screen monitoring and pressure control assembly in the present invention;

[0021] Figure 5 It is a structural schematic diagram of the weight adjustment component in the present invention;

[0022] In the figure: 1. detection base; 11. automobile motor; 12. mounting recess; 13. positioning frame; 14. limit spring; 2. vibration detection mechanism; 21. side transmission frame; 22. outer casing; 23. limit rod; 24. drive motor; 25. frame plate; 26. threaded rod; 3. load-adjusting assembly; 31. mounting body; 32. ring delivery chamber; 33. load block; 34. load-carrying box; 35. telescopic push rod; 4. touch monitoring pressure assembly; 41. mounting seat; 42. guide cylinder; 43. shaft plug; 44. pressure plate; 45. pressure pad; 46. transfer arm; 47. limit frame; 48. connecting insert. DETAILED DESCRIPTION

[0023] See also Figures 1 - 5, in the embodiment of the present invention, a high-voltage electrical state detection device for a new energy vehicle includes: a detection base 1, one end of which is provided with an installation recess 12. A plurality of positioning frames 13 are circumferentially distributed inside the installation recess 12. A limiting spring 14 is connected between the positioning frame 13 and the detection base 1. The positioning frame 13 is used for end-fixing the vehicle motor 11. A vibration detection mechanism 2 is arranged on one side of the detection base 1. The vibration detection mechanism 2 is in contact installation with the vehicle motor 11 and performs main detection on the working state of the vehicle motor 11. A load adjustment component 3 is also arranged on the detection base 1 on the side of the output shaft of the vehicle motor 11. Current sensors and voltage sensors (not shown in the figure) are arranged on the detection base 1. Both the current sensor and the voltage sensor are connected to the vehicle motor 11. This is mainly based on the safety and reliability tests of the high-voltage electrical state of the vehicle motor, so as to calculate the failure rate of the vehicle working under different environmental conditions and provide data reference for subsequent vehicle production.

[0024] In this embodiment, the vibration detection mechanism 2 includes: two side transmission frames 21 which are symmetrically arranged left and right. Adjustment substrates are slidably arranged on the side transmission frames 21. An outer machine shell 22 is fixed on the adjustment substrate. A transmission shaft is horizontally rotatably arranged above the interior of the outer machine shell 22. A driving motor 24 is fixed on the outer machine shell 22. The output end of the driving motor 24 is connected and driven to the transmission shaft through gear meshing. A threaded rod 26 is rotatably arranged inside the outer machine shell 22. One end of the threaded rod 26 is meshed and driven with the transmission shaft through bevel gears. And two limiting rods 23 are symmetrically fixed inside the outer machine shell 22. A machine plate is slidably arranged on the limiting rods 23. One end of the threaded rod 26 is slidably connected to the machine plate through thread meshing. A frame plate 25 is fixed on the detection base 1. And touch monitoring and pressing components 4 are fixed on both the frame plate 25 and the machine plate. That is to say, the touch monitoring and pressing component 4 can cooperate with the positioning frame to perform main installation on the vehicle motor. Then, the touch monitoring and pressing component 4 can detect the micro-vibration of the vehicle motor during operation, so as to test the safety and reliability of the high-voltage electricity of the vehicle motor.

[0025] As a preferred embodiment, the touch monitoring pressure assembly 4 includes: a mounting base 41, inside which a plurality of feeding cylinders 42 are arranged in a row. The feeding cylinders 42 are vertically fixed inside the mounting base 41, and a piston 43 is slidably arranged inside the feeding cylinder 42. One end of the piston 43 is fixed with a pressing plate 44. The feeding cylinders 42 are all connected to an external booster pump (not shown in the figure) through air pressure pipes. One side of the pressing plate 44 is provided with a pressure pad 45 through a connecting spring. A plurality of pressure sensors are fixed on the pressure pad 45, and a plurality of pressure heads are provided on the pressing plate 44, and the pressure heads can contact and abut against the pressure sensors. Among them, the contact pressure of the pressure sensors is preferably determined. The piston 43 can drive the pressure pad 45 to contact the automotive motor 11 under sliding adjustment. During the test work, the contact pressure between the pressure heads and the pressure sensors is monitored in real time and amplified through computer three-dimensional simulation, so as to accurately monitor the micro-vibration during the operation of the automotive motor 11.

[0026] In this embodiment, the three touch monitoring pressure assemblies 4 can correspondingly monitor and form three groups of pressure change data. The two sides of the mounting base 41 are rotatably provided with transfer arms 46, and a limiting frame 47 is rotatably provided on the transfer arms 46. A connecting insert 48 is provided on the automotive motor 11, and one end of the limiting frame 47 can be clamped and fixed with the connecting insert 48. In particular, each limiting frame can install and fix the automotive motor 11 from different angles, so as to simulate the main working safety and stability of the automotive motor 11 in uphill, downhill and flat road environments.

[0027] In this embodiment, a temperature sensor and a noise detection device are further arranged inside the mounting base 41 for monitoring the heat and noise generated during the operation of the automotive motor.

[0028] In this embodiment, the load adjustment assembly 3 includes: a mounting body 31, one end of which is sleeved outside the output shaft of the automotive motor 11. A ring-shaped cavity 32 is fixedly embedded inside the mounting body 31, and the output shaft of the automotive motor 11 extends into the ring-shaped cavity 32. A telescopic ejector rod 35 is horizontally fixed inside the mounting body 31, and a load box 34 is fixed below its interior. A plurality of load blocks 33 are arranged in a row inside the load box 34. A flat key is detachably fixed to the output shaft of the automotive motor 11. The flat key is usually a metal piece with a rectangular or square cross-section, and it can be embedded in the key groove inside the output shaft of the automotive motor 11. The load blocks 33 can be slidably connected to the output shaft of the automotive motor 11 through the flat key. Thus, when the automotive motor 11 operates, its output shaft rotates and transmits torque to the load blocks 33 through the flat key. Since the flat key fits tightly with the key groove, the effective transmission of torque is ensured, so as to test the stability and reliability of the automotive motor when bearing the maximum load.

[0029] As a preferred embodiment, the heavy load box 34 is further provided with an eccentric block. Among them, the maximum torque value that the automotive motor can output can be tested under the change of the heavy load, so as to realize the peak torque test. At the same time, the rated speed of the automotive motor under the rated voltage is tested. In particular, the eccentric block can increase the test difficulty and expand the test range.

[0030] In this embodiment, a method for using a high-voltage electrical state detection device for a new energy vehicle includes the following steps:

[0031] Step 1: Place the automotive motor 11. The end of the automotive motor 11 is clamped and fixed on the detection base 1 through the positioning frame 13. At this time, the vibration detection mechanism 2 is in constant-pressure contact with the outer circumference of the automotive motor 11, and the load adjustment assembly 3 is sleeved outside the output shaft of the automotive motor 11.

[0032] Step 2: Set the motor speed and load state. According to the test requirements, by adjusting the output voltage value of the constant-voltage source and the output current value of the constant-current source, the speed of the automotive motor 11 is controlled. Among them, the load adjustment assembly 3 can correspondingly install different loads on the output shaft of the automotive motor 11.

[0033] Step 3: Vibration detection. The three touch monitoring pressure components 4 simultaneously monitor the data of the micro-vibration generated during the operation of the automotive motor. Among them, the position-limiting frame 47 on the touch monitoring pressure component 4 can be adjusted one by one to fix the automotive motor 11 at different angles, and then data recording is carried out. At the same time, the set temperature sensor and noise detection device can work synchronously to monitor the working temperature and working noise.

[0034] Step 4: Repeat Step 2 and Step 3 to monitor the current and voltage of the automotive motor 11.

[0035] The above-mentioned is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A high-voltage electrical state detection device for new energy vehicles, characterized in that: It includes: A detection base (1) is provided with a mounting recess (12) at one end thereof, a plurality of positioning frames (13) are distributed in the circumferential direction of the mounting recess (12), a limit spring (14) is connected between the positioning frame (13) and the detection base (1), the positioning frame (13) is used to fix the end of the automobile motor (11), a vibration detection mechanism (2) is provided on one side of the detection base (1), the vibration detection mechanism (2) is installed in contact with the automobile motor (11) and performs main body detection on the working state of the automobile motor (11), a load adjustment component (3) is also provided on the detection base (1) on one side of the output shaft of the automobile motor (11), and a current sensor and a voltage sensor are provided on the detection base (1), and the current sensor and the voltage sensor are both connected to the automobile motor (11); The vibration detection mechanism (2) comprises: a side transmission frame (21), which is two symmetrically arranged on the left and right sides, each of which is slidably provided with an adjustment substrate, an outer casing (22) is fixed on the adjustment substrate, a transmission shaft is horizontally rotatably arranged on the upper part of the inner part of the outer casing (22), a drive motor (24) is fixed on the outer casing (22), an output end of the drive motor (24) is connected to the transmission shaft through gear meshing, a threaded rod (26) is rotatably arranged inside the outer casing (22), one end of the threaded rod (26) is meshed with the transmission shaft through a bevel gear for transmission, and a limit rod (23) is symmetrically fixed inside the outer casing (22), an organic board is slidably provided on the limit rod (23), one end of the threaded rod (26) is slidably connected to the machine board through thread meshing, a frame plate (25) is fixed on the detection base (1), and a touch screen pressure assembly (4) is fixed on the frame plate (25) and the machine board; The touch screen monitoring pressure assembly (4) comprises: a mounting seat (41), a plurality of guide cylinders (42) arranged inside the mounting seat, the guide cylinders (42) are vertically fixed in the mounting seat (41), and a shaft plug (43) is slidably arranged in the guide cylinder (42), a pressure plate (44) is fixed at one end of the shaft plug (43), the guide cylinders (42) are connected to an external booster pump through an air pressure pipe, and a pressure pad (45) is arranged on one side of the pressure plate (44) through a connecting spring, a plurality of pressure sensors are fixed on the pressure pad (45), and a plurality of pressure heads are arranged on the pressure plate (44), and the pressure heads can contact and abut against the pressure sensors.

2. A high-voltage electrical state detection device for new energy vehicles according to claim 1, characterized in that: The three touch-sensitive monitoring pressure assemblies (4) can correspondingly monitor and form three sets of pressure change data, and transfer arms (46) are rotatably provided at both sides of the mounting seat (41), and a limit frame (47) is rotatably provided on the transfer arm (46). A connecting insert (48) is provided on the automobile motor (11), and one end of the limit frame (47) can be fixedly connected to the connecting insert (48).

3. A high-voltage electrical state detection device for new energy vehicles according to claim 1, characterized in that: A temperature sensor and a noise detection device are also provided in the mounting seat (41).

4. A new energy vehicle high voltage electrical state detection device according to claim 1, characterized in that: The load-adjusting assembly (3) comprises: a mounting body (31), one end of which is sleeved on the outside of the output shaft of the automobile motor (11); a ring-feeding cavity (32) is embedded and fixed in the mounting body (31); the output shaft of the automobile motor (11) extends into the ring-feeding cavity (32); a telescopic top rod (35) is transversely fixed in the mounting body (31); a load-bearing box (34) is fixed at the bottom of the mounting body (31); a plurality of load-bearing blocks (33) are arranged in the load-bearing box (34); the output shaft of the automobile motor (11) is detachably fixed with a flat key, and the load-bearing block (33) can be slidably connected to the output shaft of the automobile motor (11) via the flat key.

5. A high-voltage electrical state detection device for new energy vehicles according to claim 4, characterized in that: The load-bearing box (34) is also provided with an eccentric block.

6. The method for using the high-voltage electrical state detection device for new energy vehicles according to claim 5 is characterized in that: It includes the following steps: Step 1: placing the automobile motor (11), clamping the end of the automobile motor (11) on the detection base (1) through the positioning frame (13), at which time the vibration detection mechanism (2) is in constant pressure contact with the outer circumference of the automobile motor (11), and the load adjustment component (3) is sleeved on the outside of the output shaft of the automobile motor (11); Step 2: setting the motor speed and load state, and controlling the speed of the automobile motor (11) by adjusting the output voltage value of the constant voltage source and the output current value of the constant current source according to the test requirements, wherein the load adjustment component (3) can be installed correspondingly to the output shaft of the automobile motor (11) with different loads; Step 3: vibration detection, the three touch-sensitive monitoring and pressure components (4) simultaneously monitor the data of the micro-vibration generated during the operation of the automobile motor (11), wherein the limit frames (47) on the touch-sensitive monitoring and pressure components (4) can be adjusted one by one to fix the automobile motor (11) at different angles, and then the data is recorded. At the same time, the temperature sensor and the noise detection device can simultaneously monitor the working temperature and the working noise; Step 4: Repeat steps 2 and 3 to monitor the current and voltage of the automobile motor (11).

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