CN113777489B - New forms of energy motor load test system - Google Patents
New forms of energy motor load test system Download PDFInfo
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- CN113777489B CN113777489B CN202111336000.5A CN202111336000A CN113777489B CN 113777489 B CN113777489 B CN 113777489B CN 202111336000 A CN202111336000 A CN 202111336000A CN 113777489 B CN113777489 B CN 113777489B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention discloses a new energy motor load test system in the technical field of motor test, which comprises a test platform, an adjusting base, a test frame and a load adjusting assembly, wherein the test motor is arranged on the adjusting base, the adjusting base can be used for performing forward and backward sliding adjustment and adaptively installing motors of different models, the load adjusting assembly is arranged between transmission rods, real-time pressure adjustment and control are performed on an extrusion part through a pressure adjusting and controlling part, the extrusion part performs load pressure buffering application on one end of the transmission rods, and the load adjusting assembly performs load force loading on the test motor through friction force. Linear regulation of the load force is carried out without the need for a shutdown for load modification.
Description
Technical Field
The invention relates to the technical field of motor testing, in particular to a new energy motor load testing system.
Background
The motor drive control system is a main execution structure in the running process of the new energy automobile. Fuel Cell Vehicles (FCV), Hybrid Electric Vehicles (HEV) and pure Electric Vehicles (EV) in the new energy vehicles all use motors to drive wheels to run the existing motor test system.
For a general new energy motor load test, a certain amount of load is loaded on a motor to be tested to run for a long time, various data of the motor are monitored in real time, but in the running process, the load of the motor is difficult to adjust in real time in the running process of the motor, the load is reloaded after the motor stops running, so that the whole test process is complicated, the adjustment range of the load is limited, linear load regulation and control are urgently needed to be solved, for motors of different models, such as for motors of different sizes and heights, the motor is required to be connected with a transmission shaft at a load end according to the position of an output shaft of the motor, the position of a rack for fixing the motor is required to be adjusted adaptively, a test platform is usually required to be designed independently, and waste of research and test resources is caused, based on the invention, a new energy motor load test system is designed, to solve the above problems.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a new energy motor load testing system, which can perform linear load loading when a motor is running, and can be applied uniformly to motors of different models and sizes.
In order to achieve the purpose, the invention provides the following technical scheme: a new energy motor load test system includes: the testing platform is used for testing the testing motor arranged on the testing platform; the testing device is characterized by further comprising an adjusting base, wherein the testing motor is mounted on the adjusting base, the adjusting base can be adjusted in a sliding mode, and motors of different models can be adaptively mounted; the test jig is arranged beside the test motor and is used for detecting physical data of the test motor; the load adjusting assembly is arranged between the transmission rods, real-time pressure adjustment and control are carried out on the extrusion part through the pressure adjusting and control part, load pressure buffering application is carried out on one end of the transmission rod through the extrusion part, and load force loading is carried out on the test motor through friction force by the load adjusting assembly;
still include flexible coupling mechanism, flexible coupling mechanism connects the output shaft of test motor with transmit the loading power between the transfer line, flexible coupling mechanism is by two tep reels and connect two the flexible connecting band of a plurality of equal length between the tep reel is constituteed.
Preferably, the flexible connecting belt is a leather belt or a braided cord belt, one of the tape reels is connected with an output shaft of the test motor through a mounting coupler, and the other tape reel is connected to the transmission rod for transmitting load force.
Preferably, the adjusting base comprises a sliding base body, a bottom sliding block of the sliding base body can slide on a sliding rail, the sliding rail is fixed on the test platform, and the sliding base body and the sliding rail are fastened through a positioning knob.
Preferably, a motor fixing frame is further installed on the sliding base body, an assembling table matched with the motor installation part is arranged on one side of the motor fixing frame, the assembling table is installed on the motor fixing frame through bolts, and the motor installation part of the test motor is installed on the assembling table through connecting bolts.
Preferably, the load adjusting assembly comprises two disc bodies arranged in opposite directions and friction plates arranged in the disc bodies, the two disc bodies are respectively connected to the two transmission rods, and friction force transmission is performed through the two friction plates arranged in opposite directions.
Preferably, the friction plate comprises a first-stage friction plate, a second-stage friction plate and a third-stage friction plate, the first-stage friction plate and the second-stage friction plate are annular friction plates, the third-stage friction plate is a circular friction plate, the first-stage friction plate, the second-stage friction plate and the third-stage friction plate are concentrically arranged from inside to outside in sequence, the contact surface of each friction plate extends from the outer area to the middle area to the outside gradually, and each adjacent friction plate body is elastically connected through an elastic copper sheet.
Preferably, the pressure regulating and controlling part comprises a screw rod and a limiting slide rod, the screw rod is installed on the base, one end of the screw rod is rotatably connected with the clamping frame, the other end of the screw rod is connected with the crank, the clamping frame slides on the limiting slide rod, and a pressure sensing module is arranged between the screw rod and the clamping frame to detect the pressure applied to the screw rod.
Preferably, the extrusion part comprises a fixing ring, a spring and a sliding sleeve, the spring is arranged between the fixing ring and the sliding sleeve, the spring and the sliding sleeve are sleeved on the transmission rod, sliding grooves are formed in two sides of the transmission rod, a limiting strip which is inserted into the sliding grooves to limit the sliding grooves is arranged in the sliding sleeve, connecting lugs are arranged on two sides of the sliding sleeve, and the connecting lugs are placed in the clamping frame and are installed into a whole through long bolts.
Preferably, the test jig comprises a jig body, a temperature measuring element and a sound collecting module, wherein the temperature measuring element and the sound collecting module are arranged on the jig body, the temperature measuring element collects the real-time temperature of the test motor, the sound collecting module collects the internal noise of the test motor, and both temperature data and noise data can be transmitted to the computer through signal lines.
Preferably, the transmission rod is arranged on a support platform, the support platform is rotatably connected with the transmission rod through a bearing, an encoder is arranged on the support platform, and the input end of the encoder is in transmission with the transmission rod through a belt wheel and a belt.
Compared with the prior art, the invention has the beneficial effects that: the system is suitable for load testing of the new energy motor, and the data of temperature rise, noise, rotating speed and the like of the new energy motor under different loads can be obtained through the testing system; the front and back position adjustment can be carried out through the arranged adjusting base, the output end of the new energy motor is flexibly connected with the transmission rod for load transmission through the flexible connecting mechanism which is arranged in a matched mode, so that the flexible transmission connection can still be realized when the output end of the motor and the transmission rod are not on the same axis, the adaptability adjustment can be carried out according to the new energy motors with different models and sizes, the application range is wider, and the independent design is not required according to the motors with various models; the pressure regulation and control part through setting up can be manual go regulated pressure and exert, and the vertical of exerting pressure can be mastered in real time according to the sensor, the extrusion part is slowly exerted on the load adjusting part through the elastic force to the pressure of exerting, the load adjusting part carries out the regulation and control of frictional force through the friction disc of subtend setting, implement the linear regulation of load power, need not shut down and carry out the load and revise, and the friction disc design is multistage friction area design, the adjustment range of its frictional force load can more enlarge, the loading threshold value scope of load is wider, be convenient for the actual environmental aspect in the simulation reality, the operating mode of test is also simple and easy more.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an adjusting base structure according to the present invention;
FIG. 3 is a schematic view of the encoder mounting position of the present invention;
FIG. 4 is a schematic structural view of a flexible connection mechanism according to the present invention;
FIG. 5 is a schematic view of the load leveling assembly of the present invention;
FIG. 6 is a schematic view of a friction plate of the present invention;
FIG. 7 is a schematic longitudinal sectional internal structure of the friction plate of the present invention;
FIG. 8 is a schematic view of the structure of the extrusion assembly of the present invention cooperating with a pressure control assembly;
FIG. 9 is a schematic view of the disassembled structure of the extruding unit and the pressure regulating unit;
FIG. 10 is a schematic view of the extrusion of the present invention, shown disassembled;
FIG. 11 is a schematic view of a test rack according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-a test platform; 2-testing the motor; 3-adjusting the base; 301-a gliding base body; 302-bottom slider; 303-a slide rail; 304-a positioning knob; 305-a motor fixing frame; 306-an assembly station; 4-a test jig; 401-a frame body; 402-a temperature measuring element; 403-sound collection module; 5-a flexible connection mechanism; 501-reel; 502-a flexible connecting band; 503-a coupler; 6, supporting the table; 7-a transmission rod; 8-a load regulation assembly; 801-disc body; 802-friction plate; 8021-first-stage friction plate; 8022-secondary friction plate; 8023-three-level friction plate; 8024-a resilient copper sheet; 9-an extrusion member; 901-a fixing ring; 902-a chute; 903-a spring; 904-sliding sleeve; 905-connecting lugs; 906-a spacing bar; 10-a pressure regulating component; 1001-crank; 1002-screw rod; 1003-limit sliding rod; 1004-card rack; 1005-a pressure sensing module; 1006-long bolt; 11-coder.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: in the invention, as shown in figure 1, the system comprises an adjusting base 3, a supporting table 6, a flexible connecting mechanism 5, a load adjusting component 8, an extruding component 9 and a pressure adjusting component 10, wherein the adjusting base 3, the supporting table 6 and the pressure adjusting component 10 are directly and fixedly arranged on a test platform 1 serving as a carrier. In an actual test experiment, motors with various models are required to be tested, the designed motor models, sizes and powers are different according to different vehicle types and under different space conditions, the overall appearance of the motor can be modified in the middle and later stages of design, and a model independent design test system is difficult to adapt, so that an adjusting base 3 is further designed to solve the problem of adaptive installation of the motors with various models, as shown in fig. 2, a test motor 2 is installed on the adjusting base 3, the adjusting base 3 can be subjected to forward and backward sliding adjustment, and the motors with different models can be adaptively installed; the adjusting base 3 comprises a sliding base body 301, a bottom sliding block 302 of the sliding base body 301 can slide on a sliding rail 303, the sliding rail 303 is fixed on the testing platform 1, the sliding base body 301 and the sliding rail 303 are fastened through a positioning knob 304, the testing motor 2 needs to adjust the position according to the length of an output shaft of the testing motor 2, when the adjusting is performed, the bottom sliding block 302 can slide in the sliding rail 303, the position of the testing motor 2 is adjusted according to the specific position of the testing motor, the position is locked through the positioning knob 304 after the position adjustment is finished, and the position is prevented from moving in the operation process. In order to ensure the convenience of installation of the motor, as another embodiment of the invention, a motor fixing frame 305 is further installed on the sliding base body 301, a groove for an output shaft of the test motor 2 to pass through is formed in the middle of the motor fixing frame 305, an assembling table 306 matched with a motor installation part is arranged on one side of the motor fixing frame 305, the assembling table 306 is a circular fixing base or a fixing base designed according to the specific shape of a motor fixing end, installation holes are distributed on the circular fixing base or the fixing base and are processed independently according to a fixing foot seat of the motor, the assembling table 306 is installed on the motor fixing frame 305 through bolts, the motor installation part of the test motor 2 is installed on the assembling table 306 through connecting bolts, and the assembling table 306 is designed independently according to the installation hole positions of motors of different models, so that the processing is simple, and the installation is convenient.
The position of a load force output end of a load testing system is generally designed to be fixed, instability during load force transmission is avoided, in order to adapt to the position of a motor output shaft and keep stable transmission of the motor output shaft and the load force, the invention also designs a flexible connecting mechanism 5 which is connected between the output shaft of a testing motor 2 and a transmission rod 7 for transmitting the load force as shown in figure 4, the flexible connecting mechanism 5 consists of two tape reels 501 and a plurality of flexible connecting belts 502 with equal length which are connected between the two tape reels 501, the flexible connecting belts 502 are leather belts or braided cord belts and increase the toughness of the whole body, force transmission is carried out through the flexible connecting belts 502 and is not limited to the position of the motor output shaft, even if the output shaft and the transmission rod 7 are not on the same axis, the load force transmission can be carried out, the adaptability is better, one of the tape reels 501 is connected with the output shaft of the testing motor 2 through a mounting coupler 503, the other reel 501 is connected to the transmission rod 7 which transmits the load force. In the invention, in order to distinguish from the existing load loading mode, (the existing mode of stopping and loading a balance weight, a magnetic system and the like is usually adopted) the invention relates to a load adjusting component 8 with lower cost, the load adjusting component 8 is arranged between transmission rods 7, real-time pressure adjustment and control are carried out on a squeezing component 9 through a pressure adjusting and controlling component 10, as shown in fig. 8, the squeezing component 9 carries out load pressure buffering application on one end of the transmission rod 7, and the load adjusting component 8 carries out load force loading on a test motor 2 through friction force. Specifically, as shown in fig. 5, 6 and 7, the load adjusting assembly 8 includes two disc bodies 801 disposed opposite to each other and friction plates 802 disposed inside the disc bodies 801, the two disc bodies 801 are respectively connected to the two transmission rods 7, and friction force is transmitted through the two friction plates 802 disposed opposite to each other. To increase the adjustment range of the friction load, and increase the adjustment threshold of the load, a separate design is made for the friction plate 802: the friction plates 802 are composed of a first-stage friction plate 8021, a second-stage friction plate 8022 and a third-stage friction plate 8023, the first-stage friction plate 8021 and the second-stage friction plate 8022 are both annular friction plates, the third-stage friction plate 8023 is a circular friction plate, the first-stage friction plate 8021, the second-stage friction plate 8022 and the third-stage friction plate 8023 are sequentially concentrically arranged from inside to outside, the contact surfaces of the friction plates 802 gradually extend from the outer area to the outer side of the middle area, the adjacent friction plates 802 are elastically connected through an elastic copper sheet 8024, under the condition of applying external thrust, two groups of friction plates 802 are extruded to the middle part, the circular two third-stage friction plates 8023 are firstly contacted to generate friction force, when the maximum elastic force of the elastic copper sheet 8024 is reached, the two groups of second-stage friction plates 8022 are contacted to generate friction force, and the friction area is the sum of the areas of the third-stage friction plates 8023 and the second-stage friction plates 8022, when the thrust is continuously applied, the two groups of first-stage friction plates 8021 are contacted to generate friction force, at the moment, the friction area is the sum of the areas of the third-stage friction plate 8023, the second-stage friction plate 8022 and the first-stage friction plate 8021, and the friction force is linearly increased on the maximum sum friction area according to the pressure intensity of the applied thrust.
One end of the load adjusting component 8 needs to be connected with a component for transmitting thrust, in the present invention, in order to provide stable thrust, a pressure adjusting component 10 is designed, as shown in fig. 9, the pressure adjusting component 10 includes a screw 1002 and a limit slide bar 1003 installed on a base, one end of the screw 1002 is rotatably connected with a clamp frame 1004, the other end is connected with a crank 1001, the clamp frame 1004 slides on the limit slide bar 1003, a pressure sensing module 1005 is arranged between the screw 1002 and the clamp frame 1004, the pressure applied at the screw 1002 is detected, in operation, the test personnel can use the crank 1001 (or directly externally connect the screw (1002) with an input motor for inputting thrust) to drive the screw 1002 to rotate, the thrust of the screw 1002 is monitored in real time through the pressure sensing module 1005, and the pressure value is transmitted to a computer for recording, the clamp frame 1004 stably slides on the limit slide bar 1003 under the push of the screw 1002, the clamping frame 1004 pushes the extrusion part 9 and the transmission rod 7 to move towards the load adjusting assembly 8 side;
the extrusion component 9 is used as a buffer component of the thrust to stably transmit the thrust to the load adjusting assembly 8, as shown in fig. 10, the extrusion component 9 includes a fixed ring 901, a spring 903 and a sliding sleeve 904, the spring 903 is arranged between the fixed ring 901 and the sliding sleeve 904, the spring 903 and the sliding sleeve 904 are sleeved on the transmission rod 7, sliding grooves 902 are formed on two sides of the transmission rod 7, a limiting strip 906 which is inserted into the sliding groove 902 for limiting is arranged in the sleeve of the sliding sleeve 904, connecting lugs 905 are arranged on two sides of the sliding sleeve 904, the connecting lugs 905 are placed in the clamping frame 1004 and are installed into a whole through a long bolt 1006; when the clamping frame 1004 moves, the connecting lug 905 and the sliding sleeve 904 move synchronously, the sliding sleeve 904 extrudes the spring 903, the spring 903 feeds back the thrust to the fixing ring 901 in the form of elasticity, and the fixing ring 901 pushes the transmission rod 7 to move, so that the thrust of the transmission rod 7 is transmitted to the friction plate 802 of the load adjusting assembly 8.
In order to test multiple items of physical data of the test motor 2 under different load states, the test rack 4 is arranged beside the test motor 2, as shown in fig. 11, the test rack 4 comprises a rack body 401, a temperature measuring element 402 and a sound collecting module 403 which are arranged on the rack body 401, the temperature measuring element 402 collects the real-time temperature of the test motor 2, the sound collecting module 403 collects the internal noise of the test motor 2, the temperature data and the noise data can be transmitted to a computer through signal lines, and other sensors can be installed according to other data to be tested.
In order to keep good support performance of the transmission rod 7, the transmission rod 7 is installed on the support table 6, the support table 6 is rotatably connected with the transmission rod 7 through a bearing, an encoder 11 is installed on the support table 6, as shown in fig. 3, transmission is performed between the input end of the encoder 11 and the transmission rod 7 through a belt wheel and a belt, the transmission rod 7 drives the encoder 11 to synchronously rotate when the test motor 2 is in a load state, the encoder 11 records data of speed, acceleration and distance of the test motor 2 in the load state, and the data are transmitted to a computer for analysis, so that various data in a load stage are quickly obtained.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a new forms of energy motor load test system which characterized in that includes: the testing platform is used for testing the testing motor arranged on the testing platform; the testing device is characterized by further comprising an adjusting base, wherein the testing motor is mounted on the adjusting base, the adjusting base can be adjusted in a sliding mode, and motors of different models can be adaptively mounted; the test jig is arranged beside the test motor and is used for detecting physical data of the test motor; the load adjusting assembly is arranged between the transmission rods, real-time pressure adjustment and control are carried out on the extrusion part through the pressure adjusting and control part, load pressure buffering application is carried out on one end of the transmission rod through the extrusion part, and load force loading is carried out on the test motor through friction force by the load adjusting assembly; the load adjusting assembly comprises two disc bodies arranged in opposite directions and friction plates arranged in the disc bodies, the two disc bodies are respectively connected to the two transmission rods, and friction force is transmitted through the two friction plates arranged in opposite directions; the friction plate comprises a first-stage friction plate, a second-stage friction plate and a third-stage friction plate, wherein the first-stage friction plate and the second-stage friction plate are both annular friction plates, the third-stage friction plate is a circular friction plate, the first-stage friction plate, the second-stage friction plate and the third-stage friction plate are sequentially and concentrically arranged from inside to outside, the contact surface of each friction plate gradually extends outwards from the outer area to the middle area, and each adjacent friction plate body is elastically connected through an elastic copper sheet;
still include flexible coupling mechanism, flexible coupling mechanism connects the output shaft of test motor with transmit the loading power between the transfer line, flexible coupling mechanism is by two tep reels and connect two the flexible connecting band of a plurality of equal length between the tep reel is constituteed.
2. The new energy motor load testing system of claim 1, characterized in that: the flexible connecting belt is a leather belt or a braided cord belt, one of the belt reels is connected with an output shaft of the test motor through an installation coupler, and the other belt reel is connected to the transmission rod for transmitting load force.
3. The new energy motor load testing system of claim 1, characterized in that: the adjusting base comprises a sliding base body, a bottom sliding block of the sliding base body can slide on a sliding rail, the sliding rail is fixed on the test platform, and the sliding base body is fastened with the sliding rail through a positioning knob.
4. The new energy motor load testing system of claim 3, characterized in that: the sliding base is characterized in that a motor fixing frame is further installed on the sliding base body, an assembling table matched with a motor installation part is arranged on one side of the motor fixing frame, the assembling table is installed on the motor fixing frame through bolts, and the motor installation part of the testing motor is installed on the assembling table through connecting bolts.
5. The new energy motor load testing system of claim 1, characterized in that: the pressure regulation and control part comprises a screw rod and a limiting slide rod, wherein the screw rod and the limiting slide rod are installed on the base, one end of the screw rod is rotated to be connected with the clamping frame, the other end of the screw rod is connected with the crank, the clamping frame slides on the limiting slide rod, and a pressure sensing module is arranged between the screw rod and the clamping frame and used for detecting the pressure applied to the screw rod.
6. The new energy motor load testing system of claim 5, wherein: the extrusion part comprises a fixing ring, a spring and a sliding sleeve, the spring is arranged between the fixing ring and the sliding sleeve, the spring and the sliding sleeve are sleeved on the transmission rod, sliding grooves are formed in two sides of the transmission rod, a limiting strip which is inserted into the sliding sleeve and is limited is arranged in the sliding grooves, connecting lugs are arranged on two sides of the sliding sleeve, and the connecting lugs are placed in the clamping frame and are integrally installed through long bolts.
7. The new energy motor load testing system of claim 1, characterized in that: the test jig comprises a jig body, a temperature measuring element and a sound collecting module, wherein the temperature measuring element and the sound collecting module are arranged on the jig body, the temperature measuring element collects the real-time temperature of the test motor, the sound collecting module collects the internal noise of the test motor, and temperature data and noise data can be transmitted to a computer through signal lines.
8. The new energy motor load testing system of claim 1, characterized in that: the transmission rod is installed on a supporting table, the supporting table is connected with the transmission rod in a rotating mode through a bearing, an encoder is installed on the supporting table, and the input end of the encoder is in transmission with the transmission rod through a belt wheel and a belt.
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| RO122747B1 (en) * | 2007-12-17 | 2009-12-30 | Universitatea "Ştefan Cel Mare" Din Suceava | Installation for checking rotors of asynchronous motors |
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| CN103901308B (en) * | 2014-04-22 | 2016-08-10 | 扬州电力设备修造厂有限公司 | The intelligent testboard of electric operator of a kind of electro-hydraulic brake and test method thereof |
| CN204200918U (en) * | 2014-08-29 | 2015-03-11 | 长城汽车股份有限公司 | Brake disc and vehicle |
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| CN110109016A (en) * | 2019-06-13 | 2019-08-09 | 重庆理工清研凌创测控科技有限公司 | New energy automobile motor test platform |
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| CN113777489A (en) | 2021-12-10 |
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Address after: 215536 No. 1, XingMao Road, Bixi street, Changshu, Suzhou, Jiangsu Patentee after: Suzhou Intermold Technology Co.,Ltd. Address before: 215513 building 22, No. 6, Maqiao Road, Changshu Economic and Technological Development Zone, Suzhou, Jiangsu Patentee before: SUZHOU YINGTEMO AUTOMOBILE TECHNOLOGY Co.,Ltd. |