Device and method for detecting high-voltage electrical state of new energy automobile

Abstract

The invention discloses a new energy automobile high-voltage electrical state detection device and method, and belongs to the technical field of new energy automobile detection equipment.The new energy automobile high-voltage electrical state detection device comprises a detection machine base, an installation concave position is arranged at one end of the detection machine base, a plurality of positioning frames are distributed in the installation concave position in the circumferential direction, and limiting springs are connected between the positioning frames and the detection machine base; the positioning frame is used for fixing the end portion of the automobile motor, a vibration detection mechanism is arranged on one side of the detection machine base, the vibration detection mechanism and the automobile motor are installed in a contact mode, main body detection is conducted on the working state of the automobile motor, and a load adjusting assembly is further arranged on the side, located on an output shaft of the automobile motor, of the detection machine base. A current sensor and a voltage sensor are arranged on the detection base, and both the current sensor and the voltage sensor are connected with the automobile motor; the safety and reliability of the automobile motor can be detected, the arranged load adjusting assembly can assist in test adjustment, and the test range is expanded.

Description

Technical Field

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

[0002] With the rapid development and popularization of new energy vehicles, the state detection technology of its high-voltage electrical system 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 the fuel system of traditional vehicles. Therefore, a special state detection method is required for monitoring and maintenance. The existing technology for new energy vehicle detection still stays in the insulation test, motor damage, control system failure and other links. The high-voltage electrical state test of new energy vehicles is highly limited and cannot provide reliability and safety tests under different environmental simulations. Therefore, a person skilled in the art provides a high-voltage electrical state detection device and method for new energy vehicles to solve the problems raised in the above background technology. Summary of the invention

[0003] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new energy vehicle high-voltage electrical status detection device, comprising: a detection base, one end of which is provided with an installation recess, a plurality of positioning frames are distributed circumferentially in the installation recess, a limiting spring is connected between the positioning frame and the detection base, the positioning frame is used to fix the end of the automobile motor, a vibration detection mechanism is provided on one side of the detection base, the vibration detection mechanism is installed in contact with the automobile motor, and performs main body detection on the working state of the automobile motor, a load adjustment component is also provided on the detection base on one side of the automobile motor output shaft, a current sensor and a voltage sensor are provided on the detection base, and the current sensor and the voltage sensor are both connected to the automobile motor.

[0004] Preferably, the vibration detection mechanism comprises: side transmission frames, which are two symmetrically arranged on the left and right, and an adjustment substrate is slidably arranged on each of the side transmission frames, an outer casing is fixed on the adjustment substrate, a transmission shaft is horizontally rotatably arranged on the upper inner part of the outer casing, a driving motor is fixed on the outer casing, and the output end of the driving motor is connected to the transmission shaft for transmission through gear meshing, a threaded rod is rotatably arranged in the outer casing, one end of the threaded rod is meshed with the transmission shaft through bevel gears for transmission, and a limit rod is symmetrically fixed in the outer casing, an organic board is slidably arranged on the limit rod, and one end of the threaded rod is slidably connected to the machine board through threaded meshing, a frame plate is fixed on the detection base, and touch monitoring and pressure components are fixed on the frame plate and the machine board.

[0005] Preferably, the touch screen monitoring pressure assembly comprises: a mounting seat, wherein a plurality of guide cylinders are arranged inside the mounting seat, the guide cylinders are vertically fixed in the mounting seat, and a shaft plug is slidably arranged in the guide cylinder, a pressure plate is fixed at one end of the shaft plug, the guide cylinders are connected to an external booster pump through an air pressure tube, and a pressure pad is provided on one side of the pressure plate through a connecting spring, a plurality of pressure sensors are fixed on the pressure pad, and a plurality of pressure heads are provided on the pressure plate, which can contact and abut against the pressure sensors.

[0006] Preferably, the three touch-screen monitoring pressure assemblies can correspondingly monitor and form three sets of pressure change data, and adapter arms are rotatably provided on both sides of the mounting seat, a limit frame is rotatably provided on the adapter arm, and a connecting insert is provided on the automobile motor, and one end of the limit frame can be clamped and fixed with the connecting insert.

[0007] Preferably, a temperature sensor and a noise detection device are also provided in the mounting base.

[0008] Preferably, the weight adjustment assembly comprises: a mounting body, one end of which is sleeved on the outside of the output shaft of the automobile motor, a ring-conveying cavity is embedded and fixed in the mounting body, the output shaft of the automobile motor extends into the ring-conveying cavity, a telescopic top rod is transversely fixed in the mounting body, and a weight-bearing box is fixed at the lower part of the mounting body, a plurality of weight blocks are arranged in the weight-bearing box, the output shaft of the automobile motor is detachably fixed with a flat key, and the weight block can be slidably connected to the output shaft of the automobile motor through the flat key.

[0009] Preferably, the load-bearing box is also provided with an eccentric block.

[0010] Preferably, a method for using a high-voltage electrical state detection device for a new energy vehicle comprises the following steps: Step 1: Place the automobile motor. Fix the end of the automobile motor on the detection base through a positioning frame. At this time, the vibration detection mechanism is in constant pressure contact with the outer circumference of the automobile motor, and the load adjustment component is sleeved outside the output shaft of the automobile motor. Step 2: Set the motor speed and load state. According to the test requirements, the motor speed of the vehicle is controlled by adjusting the output voltage of the constant voltage source and the output current of the constant current source. The load adjustment component can be used to install different loads on the output shaft of the vehicle motor. 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. Step 4: Repeat steps 2 and 3 to monitor the current and voltage of the automobile motor.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 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

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the positioning frame in the present invention; Figure 3 It is a structural schematic diagram of the vibration detection mechanism in the present invention; Figure 4 It is a structural schematic diagram of the touch screen monitoring and pressure control assembly in the present invention; Figure 5 It is a structural schematic diagram of the weight adjustment component in the present invention; 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. groove 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 monitor 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

[0013] See also Figure 1-Figure 5In an embodiment of the present invention, a high-voltage electrical state detection device for a new energy vehicle comprises: a detection base 1, one end of which is provided with a mounting recess 12, a plurality of positioning frames 13 are circumferentially distributed in the mounting recess 12, a limiting spring 14 is connected between the positioning frame 13 and the detection base 1, and 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 a main body detection on the working state of the automobile motor 11, and 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 (not shown in the figure) are provided on the detection base 1, and the current sensor and the voltage sensor are both connected to the automobile motor 11, which is mainly based on the safety and reliability test of the high-voltage electrical state of the automobile motor, so as to calculate the failure rate of the vehicle working under different environmental conditions, and provide data reference for subsequent automobile production.

[0014] In this embodiment, the vibration detection mechanism 2 includes: a side transmission frame 21, which is two symmetrically arranged on the left and right, and an adjustment substrate is slidably arranged on each of the side transmission frames 21, an outer housing 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 housing 22, a drive motor 24 is fixed on the outer housing 22, and the output end of the drive motor 24 is connected to the transmission shaft for transmission through gear meshing, a threaded rod 26 is rotatably arranged in the outer housing 22, and one end of the threaded rod 26 is meshed with the transmission shaft through a bevel gear. Transmission, and a limit rod 23 is symmetrically fixed in the outer casing 22, an organic board is slidably set on the limit rod 23, one end of the threaded rod 26 is slidably connected with the machine board through threaded engagement, a frame plate 25 is fixed on the detection base 1, and a touch monitoring and pressure assembly 4 is fixed on the frame plate 25 and the machine board, that is, the touch monitoring and pressure assembly 4 can cooperate with the positioning frame to install the main body of the automobile motor, and then the touch monitoring and pressure assembly 4 can detect the micro-vibration of the automobile motor under operation, so as to test the safety and reliability of the high-voltage electrical of the automobile motor.

[0015] As a preferred embodiment, the touch monitoring pressure assembly 4 includes: a mounting seat 41, in which a plurality of guide cylinders 42 are arranged and arranged, 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 (not shown in the figure) through an air pressure tube, 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, the pressure heads can contact and abut against the pressure sensors, among which the contact pressure of the pressure sensor is preferentially set, the shaft plug 43 can drive the pressure pad 45 to contact with the automobile motor 11 under sliding adjustment, and in the test work, the contact pressure between the pressure head and the pressure sensor is monitored in real time, and amplified by computer three-dimensional simulation, so as to accurately monitor the micro-vibration of the automobile motor 11 during operation.

[0016] In this embodiment, the three touch-screen monitoring pressure assemblies 4 can correspondingly monitor and form three sets of pressure change data, and adapter arms 46 are rotatably provided at both sides of the mounting seat 41, and a limiting frame 47 is rotatably provided on the adapter arm 46. A connecting insert 48 is provided on the automobile 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 automobile motor 11 from different angles, so as to simulate the main working safety and stability of the automobile motor 11 in climbing, descending and flat road environments.

[0017] In this embodiment, a temperature sensor and a noise detection device are also disposed in the mounting seat 41 to monitor the heat and noise generated during operation of the automobile motor.

[0018] In this embodiment, the load adjustment component 3 includes: a mounting body 31, one end of which is sleeved on the outside of the output shaft of the automobile motor 11, and a ring-feeding cavity 32 is embedded and fixed in the mounting body 31, and the output shaft of the automobile motor 11 extends into the ring-feeding cavity 32, a telescopic top rod 35 is fixed laterally in the mounting body 31, and a load-bearing box 34 is fixed at the lower part of the mounting body 31, and a plurality of load blocks 33 are arranged in the load-bearing box 34, and the output shaft of the automobile motor 11 is detachably fixed with a flat key, which is usually a metal part with a rectangular or square cross-section, which can be embedded in the keyway in the output shaft of the automobile motor 11, and the load block 33 can be slidably connected with the output shaft of the automobile motor 11 through the flat key, so that when the automobile motor 11 is running, its output shaft rotates and transmits torque to the load block 33 through the flat key, and because the flat key and the keyway are closely matched, the effective transmission of torque is ensured, so as to test the stability and reliability of the automobile motor when it is under maximum load.

[0019] As a preferred embodiment, the load-bearing box 34 is also provided with an eccentric block, wherein the maximum torque value that the automobile motor can output can be tested when the load block is changed, so as to realize the peak torque test, and at the same time test the rated speed of the automobile motor at the rated voltage. In particular, the eccentric block can increase the test difficulty and expand the test range.

[0020] In this embodiment, a method for using a high-voltage electrical state detection device for a new energy vehicle comprises the following steps: Step 1: Place the automobile motor 11. Clamp the end of the automobile motor 11 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 automobile motor 11, and the load adjustment component 3 is sleeved on the output shaft of the automobile motor 11. Step 2: Set the motor speed and load state. According to the test requirements, the speed of the automobile motor 11 is controlled by adjusting the output voltage of the constant voltage source and the output current of the constant current source. The load adjustment component 3 can be installed with different loads to the output shaft of the automobile motor 11. Step 3, vibration detection, the three touch-sensitive monitoring and pressure components 4 simultaneously monitor the micro-vibration generated by the automobile motor during operation, 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, and the temperature sensor and noise detection device set at the same time can monitor the working temperature and working noise synchronously; Step 4: Repeat steps 2 and 3 to monitor the current and voltage of the automobile motor 11.

[0021] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which 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 circumferentially within 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).

2. A high-voltage electrical state detection device for new energy vehicles according to claim 1, characterized in that: 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 arranged 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.

3. A high-voltage electrical state detection device for new energy vehicles according to claim 2, characterized in that: 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.

4. A high-voltage electrical state detection device for new energy vehicles according to claim 3, 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).

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

6. A high-voltage electrical state detection device for new energy vehicles 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.

7. A high-voltage electrical state detection device for new energy vehicles according to claim 6, characterized in that: The load-bearing box (34) is also provided with an eccentric block.

8. The method for using the high-voltage electrical state detection device for new energy vehicles according to claim 4 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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