CN215893856U - Two-motor electric drive shaft power rack - Google Patents
Two-motor electric drive shaft power rack Download PDFInfo
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- CN215893856U CN215893856U CN202122104956.4U CN202122104956U CN215893856U CN 215893856 U CN215893856 U CN 215893856U CN 202122104956 U CN202122104956 U CN 202122104956U CN 215893856 U CN215893856 U CN 215893856U
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Abstract
The utility model discloses a power rack with two electric motors driving shafts. The technical scheme of the utility model is as follows: the utility model provides a two motor electric drives axle power rack, includes base, dynamometer, load motor, is used for supporting the support and the lid of motor appearance and establishes the environment storehouse on the motor appearance, the support sets up between dynamometer and load motor, and the axle of load motor is concentric with the axle of dynamometer, dynamometer controller and torque sensor are connected to the dynamometer, load motor connects load motor controller, the battery simulator is connected to the motor appearance, temperature control module is connected in the environment storehouse, temperature control module includes air conditioning unit and humidification machine. The utility model has the advantages of high test precision, suitability for various voltage and power grades and high system efficiency.
Description
Technical Field
The utility model relates to the technical field of detection of a motor power assembly of a new energy automobile, in particular to a power rack with two motor electric drive shafts.
Background
In recent years, new energy automobiles are greatly developed, and the new energy market is continuously expanded. The test bench is used for simulating vehicle wheels by taking the motor as a load, and measuring the output rotating speed and torque to realize the measurement of the power assembly. Therefore, in the components of the electric automobile, the requirements of various parameter indexes of the motor are very strict. The conventional test bench adopts a single dynamometer to test the motor, and cannot adapt to the change of a new energy automobile test motor.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model mainly aims to provide the two-motor electric drive shaft power bench which has the advantages of high test precision, suitability for various voltage and power grades and high system efficiency.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a two motor electric drives axle power rack, includes base, dynamometer, load motor, is used for supporting the support and the lid of motor appearance and establishes the environment storehouse on the motor appearance, the support sets up between dynamometer and load motor, and the axle of load motor is concentric with the axle of dynamometer, dynamometer controller and torque sensor are connected to the dynamometer, load motor connects load motor controller, the battery simulator is connected to the motor appearance, temperature control module is connected in the environment storehouse, temperature control module includes air conditioning unit and humidification machine.
Preferably, the bottom of the base is provided with a plurality of air springs.
Preferably, the support is arranged on a moving trolley, and the moving trolley can move in the environmental chamber.
Compared with the prior art, the utility model has the advantages that the motor is used as a load to simulate the wheels of the vehicle, the measurement of the power assembly is realized by measuring the output rotating speed and the torque, and the utility model has the advantages of high test precision, suitability for various voltage and power grades and high system efficiency. Not only the bench simulation test is realized, but also the period of the real vehicle test of the automobile is greatly shortened.
The dynamometer can measure the output efficiency of the motor sample piece in real time by using the torque sensor, and the dynamometer controller and the load motor controller are used for controlling different states of the adjustable dynamometer and the load motor. The battery simulator can simulate the charging and discharging actions of the battery, can accurately track a voltage/current command and simulate the characteristics of a real battery. Wherein the environment storehouse is used for covering the motor appearance piece, can adjust the temperature and the humidity of motor appearance piece environment in addition through temperature control module, simulates out various service environment, reaches the accuracy of testing effect. The bottom of base is provided with a plurality of air spring, and the purpose that sets up like this increases the shock-absorbing capacity of whole rack, and the support setting can conveniently adjust and the position of fixed motor appearance piece like this according to the shape size of motor appearance piece on the travelling car.
Drawings
FIG. 1 is a first schematic structural view of a two-motor electric drive shaft power bench of the present invention;
fig. 2 is a schematic structural diagram of a two-motor electric drive shaft power bench of the present invention.
In the figure: 1. a base; 2. a dynamometer; 3. a load motor; 4. a support; 5. an environment bin; 6. a temperature control module; 7. a battery simulator; 8. an air spring; 9. and (5) moving the trolley.
Detailed Description
The utility model will be further explained with reference to the drawings.
As shown in fig. 1, a two motor electric drive axle power rack, including base 1, dynamometer machine 2, load motor 3, be used for supporting motor appearance support 4 and the environmental chamber 5 of lid on motor appearance, support 4 sets up between dynamometer machine 2 and load motor 3, and load motor 3's axle is concentric with dynamometer machine 2's axle, dynamometer machine 2 is connected 2 controllers and torque sensor to dynamometer machine 2, load motor 3 is connected the load motor 3 controller, battery simulator 7 is connected to the motor appearance, environmental chamber 5 connects temperature control module 6, temperature control module 6 includes air conditioning unit and humidification machine.
Preferably, a plurality of air springs 8 are arranged at the bottom of the base 1.
Preferably, the support 4 is arranged on a mobile trolley 9, and the mobile trolley 9 can move in the environmental chamber 5.
The conventional dynamometer 2 has a simple structure and is composed of a cabinet and a test bench, wherein the test bench is also commonly called a dynamometer head and generally refers to a mode that a torque rotating speed sensor and a brake are integrated. The test bench comprises a mounting base 1, a torque rotating speed sensor and a mechanical load (brake), and is used for loading torque during motor test and simulating different working conditions of a motor; the cabinet comprises an electrical parameter tester, a motor tester, a dynamometer 2 controller, a power supply and the like, and is used for driving the system and testing the motor. The mechanical load of the dynamometer 2 generally uses a brake, which is used for providing reverse rotation torque to the tested motor, absorbing the power of the tested motor during operation, realizing the loading of the tested motor, and simulating the actual operation condition of the tested motor. However, to simulate the actual operating condition of the tested motor, the loading capacity of the dynamometer 2 must cover the entire range of the operating condition of the tested motor, and the requirement of simulating all the operating conditions can be met. In short, the TN curve of the mechanical load of the dynamometer 2 must cover the TN curve of the tested motor, so that the full-range TN characteristic of the tested motor can be tested. The motor of the electric automobile has different TN curves from the common motor, has the characteristics of wide constant power area (the constant power area of the permanent magnet synchronous motor can reach 80% or even higher of the peak rotating speed), and high peak rotating speed (more than 10000 rpm), which means that the motor of the electric automobile can realize high-speed small-torque working conditions and low-speed large-torque working conditions, and provides very high requirements for the TN characteristics of the dynamometer 2.
The scheme adopts a high-speed asynchronous motor as a load motor 3, and adopts a motor which has the same constant power range and high peak rotating speed as the load motor. According to the scheme, different motors special for the dynamometer 2 can be customized as test loads according to the specific test range of a user, and the loading range of the mechanical load is ensured to cover the tested motor. The torque fluctuation of the high-speed asynchronous motor is small, mainly caused by the current fluctuation of the frequency converter, and the frequency converter has good quality, is very small relative to the torque fluctuation of the tested motor, can ensure the stability of a test result when used for testing, and can provide the torque fluctuation waveform of the tested motor.
Therefore, the motor is used as a load to simulate wheels of a vehicle, the measurement of the power assembly is realized by measuring the output rotating speed and torque, and the device has the advantages of high test precision, suitability for various voltage and power grades and high system efficiency. Not only the bench simulation test is realized, but also the period of the real vehicle test of the automobile is greatly shortened.
The dynamometer 2 can measure the output efficiency of the motor sample in real time by using the torque sensor, and the dynamometer 2 controller and the load motor 3 controller are used for controlling different states of the adjustable dynamometer 2 and the load motor 3. The battery simulator 7 can simulate the charging and discharging actions of the battery, can accurately track voltage/current commands and simulate the characteristics of a real battery. Wherein environment storehouse 5 is used for hiding the motor appearance piece, can adjust the temperature and the humidity of the environment that the motor appearance piece is located in addition through temperature control module 6, simulates out various service environment, reaches the accuracy of detection effect. The bottom of base 1 is provided with a plurality of air spring 8, and the purpose that sets up like this increases the shock-absorbing capacity of whole rack, and support 4 sets up on travelling car 9, can conveniently adjust and the position of fixed motor appearance piece like this according to the shape size of motor appearance piece. The torque sensor of the scheme is arranged on the dynamometer 2, which is not shown in the attached drawings, and the dynamometer 2 controller and the load motor 3 controller are arranged in the control system, which is not shown in the attached drawings.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (3)
1. The utility model provides a two motor electric drive axle power rack which characterized in that: including base, dynamometer machine, load motor, be used for supporting the support and the environment storehouse of lid on the motor appearance piece of motor appearance piece, the support sets up between dynamometer machine and load motor, and the axle of load motor is concentric with the axle of dynamometer machine, dynamometer machine controller and torque sensor are connected to the dynamometer machine, load motor connects load motor controller, the battery simulator is connected to the motor appearance piece, temperature control module is connected to the environment storehouse, temperature control module includes air conditioning unit and humidification machine.
2. A two-motor electric drive axle power stand as defined in claim 1, wherein: the bottom of the base is provided with a plurality of air springs.
3. A two-motor electric drive axle power stand as defined in claim 1, wherein: the support sets up on the travelling car, the travelling car can remove in the environment storehouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122104956.4U CN215893856U (en) | 2021-09-02 | 2021-09-02 | Two-motor electric drive shaft power rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122104956.4U CN215893856U (en) | 2021-09-02 | 2021-09-02 | Two-motor electric drive shaft power rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215893856U true CN215893856U (en) | 2022-02-22 |
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ID=80564063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122104956.4U Active CN215893856U (en) | 2021-09-02 | 2021-09-02 | Two-motor electric drive shaft power rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215893856U (en) |
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2021
- 2021-09-02 CN CN202122104956.4U patent/CN215893856U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Two Electric Electromechanical Drive Shaft Power Bench Effective date of registration: 20230802 Granted publication date: 20220222 Pledgee: Jiangsu Taicang Rural Commercial Bank Co.,Ltd. Pledgor: Yundong (Taicang) measurement and Control Technology Co.,Ltd. Registration number: Y2023980050737 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |