A drive motor test bench

Abstract

The application provides a kind of driving motor test board, including: shell, rack, motor controller suitable for connecting with motor to be measured, display screen and computer host;Cavity is provided in shell, rack is arranged in the cavity of shell, and is suitable for supporting shell;First mounting plate is provided in the cavity of shell, and first mounting plate and the bottom plate of shell are arranged parallel to each other;Computer host is arranged on first mounting plate, and motor controller is arranged on bottom plate;Two terminal blocks are provided on the side wall of shell, one end of two terminal blocks is connected with three-phase aviation connection plug and rotary variable aviation connection plug of motor controller respectively, and the other end of two terminal blocks is suitable for electrically connecting with motor to be measured.The application only needs to be connected with motor to be measured through two terminal blocks when testing motor to be measured, without complicated preparation work, and the efficiency of motor test can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of motor performance testing technology, specifically, it relates to a drive motor test bench. Background Technology

[0002] Currently, electric motors, as core components of modern industrial equipment, are widely used in industrial automation, electronic equipment and information technology products, aerospace, automated production, and new energy fields. Their main function is to convert electrical energy into mechanical energy to power the connected equipment. Therefore, electric motors must undergo rigorous performance testing before leaving the factory, such as testing their operating speed and torque data to ensure good performance. Currently, motor testing benches are commonly used for motor testing. A common method for motor performance testing is direct measurement, as illustrated in CN211626553U, which places a torque sensor between the motor under test and the load device, connecting them to measure the torque data of the motor under test. During installation, it is crucial to ensure shaft alignment between the mechanical structures, specifically aligning the output shaft of the motor under test with the connection shaft of the load device. Misalignment can easily affect the testing accuracy of the motor under test, leading to cumbersome pre-test preparation.

[0003] In response, this application proposes a drive motor test bench that tests the motor under test using an indirect measurement method. This application eliminates the need to connect the motor under test to the load device and sensors, and also eliminates the need to consider coaxial alignment between the motor under test and the load device before motor testing, which can effectively improve the testing efficiency of the motor under test. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a drive motor test bench, including: a housing, a frame, a motor controller suitable for connecting to the motor under test, a display screen and a computer host;

[0005] The housing has a cavity, and the platform is set inside the cavity of the housing, which is suitable for supporting the housing;

[0006] The housing cavity is provided with a first mounting plate, which is parallel to the bottom plate of the housing; the computer host is mounted on the first mounting plate, and the motor controller is mounted on the bottom plate; the computer host and the motor controller are electrically connected to output test signals to the motor controller and obtain test data of the motor under test through the motor controller.

[0007] The display screen is mounted on the side wall of the housing and electrically connected to the computer host, and is suitable for displaying test data;

[0008] Two terminal blocks are provided on the side wall of the housing. One end of the two terminal blocks is connected to the three-phase aviation connector of the motor controller and the aviation connector of the resolver, respectively. The other end of the two terminal blocks is suitable for electrical connection to the motor under test.

[0009] In one possible implementation, a low-voltage power supply is also included; the low-voltage power supply is disposed on the first mounting plate and adjacent to the computer host, and the low-voltage power supply is suitable for powering the motor controller.

[0010] In one possible implementation, a relay is housed within the housing, with one end of the relay electrically connected to a low-voltage power supply and the other end of the relay electrically connected to a motor controller.

[0011] In one possible implementation, a second mounting plate is also included; the second mounting plate is disposed below the first mounting plate, and the relay is disposed on the second mounting plate.

[0012] In one possible implementation, a first wire hole is provided on the first mounting plate for passing wires that are connected to a low-voltage power supply and a relay.

[0013] In one possible implementation, a second mounting plate has a second wire hole for passing through the wires connecting the relay and the motor controller.

[0014] In one possible implementation, a first limiting member is also included, which is adapted to fix the computer host to the first mounting plate.

[0015] In one possible implementation, a drawer is also included, which is mounted on the outer wall of the housing.

[0016] In one possible implementation, the bottom of the housing is also equipped with casters, which are suitable for moving the test bench.

[0017] Beneficial Effects: The drive motor test bench of this application can test the motor by placing the controller and computer host inside the test bench cavity and connecting the motor under test (DUT) through two terminal blocks on the side wall of the housing. Specifically, the computer host sends test signals to the controller, which controls the DUT to operate and feeds back the test data from the DUT to the computer host, which then displays the data on the monitor. This DUT test bench only requires connecting the DUT to the two terminal blocks on the side wall of the housing, eliminating the need for complex equipment installation before testing and effectively improving testing efficiency. Furthermore, this application eliminates the need for load devices and sensors; instead, it directly controls the DUT and collects test data through the controller, then evaluates the DUT based on the collected data. This measurement method is simpler and more convenient.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0020] Figure 1 This is an exploded view of a drive motor test bench according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of a drive motor test bench according to an embodiment of the present invention;

[0022] Figure 3 This is a front frame view of a drive motor test bench according to an embodiment of the present invention;

[0023] Figure 4 This is a rear frame view of a drive motor test bench according to an embodiment of the present invention;

[0024] Figure 5 This is an embodiment of the present utility model. Figure 3 A magnified view of a portion of the image;

[0025] Figure 6 This is a schematic diagram of a relay according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of a positive and negative terminal block assembly according to an embodiment of the present invention;

[0027] Figure 8 This is an embodiment of the present utility model. Figure 7 A magnified view of a portion of the image;

[0028] The attached diagram lists the components represented by each number as follows:

[0029] Housing 100, Front panel 110, High-voltage power switch 111, JUMP switch 112, Reset switch 113, 5V switch 114, 24V switch 115, Computer switch 116, Main switch 117, Emergency stop button 118, USB socket 119, Top panel 120, Recessed panel 130, Side panel 140, Mouse 141, Keyboard 142, Rear panel 150, Bottom panel 160, Second mounting plate 170, Second cable hole 171, First mounting plate 180, First cable hole 181, Cover plate 190, Controller 200, Positive and negative connector 210, Three-phase aviation connector 220, Integrated interface 230, Converter aviation connector 240, Fourth limiter 250, Display screen 300, S CI interface 310, CAN interface 320, three-phase aviation terminal block 330, first protective cover 331, resolver aviation terminal block 340, general aviation plug 350, low voltage power supply 360, first protective cover 361, power strip 370, third limiting member 371, partition 380, second limiting member 390, computer host 400, first limiting member 410, stand 500, upper support frame 510, lower support frame 520, second protective cover 610, positive and negative terminal block assembly 620, second protective cover 621, card slot 622, groove 623, pad 630, U-shaped plate 640, control board 650, relay 660, third wire hole 670, drawer 700, caster wheel 800, tray 900.

[0030] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0031] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0032] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application or to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0035] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0036] Figure 1 This is an exploded view of a drive motor test bench according to this application. Figure 2 A schematic diagram of a drive motor test bench according to this application is shown. See also: Figure 1 and Figure 2 As shown, the drive motor test bench of this application includes a housing 100, a frame 500, a motor controller 200 suitable for connecting to the motor under test, a display screen 300, and a computer host 400. The housing 100 has a cavity, and the frame 500 is disposed within the cavity of the housing 100 to support the housing 100. A first mounting plate 180 is disposed within the cavity of the housing 100, and the first mounting plate 180 is parallel to the base plate 160 of the housing 100. The computer host 400 is mounted on the first mounting plate 180, and the motor controller 200 is mounted on the base plate 160. The computer host 400 is electrically connected to the motor controller 200 to output test signals and acquire test data of the motor under test through the motor controller 200; the display screen 300 is set on the side wall of the housing 100 and electrically connected to the computer host 400, and is used to display test data; the side wall of the housing 100 is provided with two terminal blocks (330 and 340), one end of the two terminal blocks is connected to the three-phase aviation connector 220 and the resolver aviation connector 240 of the motor controller respectively, and the other end of the two terminal blocks is used to electrically connect to the motor under test.

[0037] The drive motor test bench of this application can be tested by placing the controller 200 and the computer host 400 inside the test bench cavity and connecting the motor under test (DUT) through two terminal blocks (330 and 340) on the side wall of the housing 100. Specifically, the computer host 400 sends test signals to the controller 200, the controller 200 controls the DUT to operate, and feeds back the test data of the DUT to the controller 200. The controller 200 then returns the test data to the computer host 400 and displays it on the display screen 300. This DUT test bench only requires connecting the DUT to the two terminal blocks on the side wall of the housing 100, eliminating the need for complex equipment installation before testing, thus effectively improving the testing efficiency. Furthermore, this application eliminates the need for load devices and sensors; instead, it directly controls the DUT and collects the test data through the controller, then evaluates the DUT based on the collected test data. This measurement method is simpler and more convenient.

[0038] In one possible implementation, see Figure 3 As shown, the platform 500 includes an upper support frame 510 and a lower support frame 520. Both the upper support frame 510 and the lower support frame 520 are rectangular frame structures and are fixedly connected. The upper support frame 510 and the lower support frame 520 have the same length, and the width of the upper support frame 510 is smaller than the width of the lower support frame 520. The housing 100 matches the shape of the entire platform 500 and is suitable for fitting onto the platform 500 to enclose it.

[0039] In one possible implementation, see Figure 2 and Figure 3 As shown, a baffle plate 190 is provided on the top of the lower support frame 520, and the baffle plate 190 is located on the part of the lower support frame 520 that protrudes from the upper support frame 510. The baffle plate 190 is bolted to the lower support frame 520, and the baffle plate 190 is suitable for placing a mouse 141 and a keyboard 142, which are suitable for electrical connection with the computer host 400.

[0040] In one possible implementation, see Figure 3As shown, the system also includes a first mounting plate 180, on which the computer host 400 is mounted. The first mounting plate 180 is a rectangular plate structure, suitable for horizontal placement at the connection point between the upper support frame 510 and the lower support frame 520, dividing the cavity of the housing 100 into upper and lower chambers. The computer host 400 is placed on the first mounting plate 180. Simultaneously, a first limiting member 410 is provided beside the computer host 400. The first limiting member 410 has an "L"-shaped cross-section. One side of the first limiting member 410 is in close contact with the computer host 400, and the other side is bolted to the first mounting plate 180, thereby fixing the computer host 400 to the first mounting plate 180 and preventing the computer host 400 from moving on the first mounting plate 180.

[0041] In one possible implementation, four first limiting members 410 are provided, respectively located on the four sides of the computer host 400.

[0042] In one possible implementation, see Figures 1 to 4 As shown, the housing 100 is assembled from multiple panels, including a front panel 110, a concave panel 130, a side panel 140, a top panel 120, a bottom panel 160, and a rear panel 150. The top panel 120 covers the top of the upper support plate, the front panel 110 covers the front side of the upper support frame 510, the concave panel 130 covers the front side of the lower support frame 520, there are two side panels 140, which cover both sides of the platform 500 respectively, the bottom panel 160 is located at the bottom of the platform 500 to close the bottom of the platform 500, and the rear panel 150 covers the rear side of the platform 500. It should be noted that the front panel 110, the concave panel 130, the side panel 140, the top panel 120, the bottom panel 160, and the rear panel 150 are all bolted to the platform 500.

[0043] In one possible implementation, two support plates 900 are provided at the bottom of the lower support frame 520, and the two support plates 900 are arranged opposite each other at the bottom of the platform 500, which is suitable for mounting the concave plate 130.

[0044] In one possible implementation, see Figure 4 As shown, the display screen 300 is embedded in the front panel 110, and a second limiting member 390 is provided on the side of the cavity of the front panel 110 facing the upper support frame 510 to prevent the display screen 300 from slipping off.

[0045] In one possible implementation, see Figure 3 As shown, the cross-section of the second limiting member 390 is Z-shaped to hold the display screen 300 in place and prevent it from slipping off the front panel 110. There are four second limiting members 390: two at the bottom of the display screen 300 and two on either side of the display screen 300.

[0046] In one possible implementation, see Figure 3 As shown, it also includes a low-voltage power supply 360, which is mounted on the first mounting plate 180 and adjacent to the computer host 400. The low-voltage power supply 360 is suitable for supplying power to the motor controller 200. See also Figure 2 As shown, it also includes a first protective cover 361, which is used to shield the low-voltage power supply 360 to prevent dust from entering. The first protective cover 361 has a socket for inserting a wire, so that the wire can be connected to the low-voltage power supply 360 through the socket, allowing the low-voltage power supply 360 to supply power to the motor controller 200 through the connected wire. The first protective cover 361 covers the low-voltage power supply 360 and is fixedly connected to the first mounting plate 180. Specifically, the first protective cover 361 has connecting portions extending outwards on both sides, which are bolted to the first mounting plate 180 to fix the first protective cover 361 to the first mounting plate 180.

[0047] In one possible implementation, see Figure 3 As shown, it also includes a power strip 370, which is disposed on the first mounting plate 180 and positioned between the low-voltage power supply 360 and the computer host 400. The power strip 370 is suitable for connecting to other devices and is fixedly mounted on the first mounting plate 180. Specifically, third limiting members 371 with an "L"-shaped cross-section are provided on both sides of the power strip 370. One side of the third limiting member 371 is tightly attached to the power strip 370, thus locking the power strip 370 in place. The other side of the third limiting member 371 is bolted to the first mounting plate 180, thereby fixing the power strip 370 to the first mounting plate 180.

[0048] In one possible implementation, two third limiting members 371 are provided, with the two third limiting members 371 respectively provided on both sides of the power strip 370 to limit the power strip 370 and prevent the power strip 370 from moving on the first mounting plate 180.

[0049] In one possible implementation, see Figure 3 As shown, this application also includes a partition 380, which is located below the first mounting plate 180, and the plane of the partition 380 is perpendicular to the plane of the first mounting plate 180. The partition 380 divides the cavity below the housing 100 into two chambers, left and right. The left chamber is suitable for housing the relay 660 and the motor controller 200, while the right chamber is suitable for housing other equipment.

[0050] In one possible implementation, a relay 660 is provided inside the housing 100, one end of which is electrically connected to a low-voltage power supply 360, and the other end of which is electrically connected to a motor controller 200.

[0051] In one possible implementation, a second mounting plate 170 is also included, which is disposed below the first mounting plate 180, and the relay 660 is disposed on the second mounting plate 170. The second mounting plate 170 has a rectangular plate-like structure, suitable for horizontal placement within the left side chamber of the partition 380, and is arranged parallel to the first mounting plate 80.

[0052] In one possible implementation, see Figures 5 to 6 As shown, a pad 630 is provided between the relay 660 and the second mounting plate 170, and two positive and negative terminal block assemblies 620 are provided on opposite sides of the pad 630. The positive and negative terminal block assembly 620 facing the rear plate 150 is suitable for connecting to an external high-voltage power supply to provide high-voltage power to the relay 660, and the positive and negative terminal block assembly 620 facing the concave plate 130 is suitable for electrical connection to the motor controller 200 to provide high-voltage power to the motor controller.

[0053] In one possible implementation, a control board 650 is also included, which is electrically connected to the relay 660 to control the relay 660. The control board 650 is placed inside the U-shaped plate 640, and the U-shaped plate on which the control board 650 is mounted is positioned above the relay 660.

[0054] In one possible implementation, a second protective cover 610 is also included, with the two sides of the U-shaped plate 640 connected to the opposite sides of the second protective cover 610, and the second protective cover 610 covers the relay 660, suitable for protecting the relay 660.

[0055] In one possible implementation, a third wire hole 670 is provided on the side wall of the second protective cover 610 for connecting the control board 650 and the low-voltage power supply 360 to provide a low-voltage power supply to the relay 660.

[0056] The low-voltage power supply 360 is electrically connected to the control board 650. Simultaneously, the relay 660 is connected to an external high-voltage power supply via the positive and negative terminal assembly 620 facing the rear panel 150, providing high-voltage power to the relay 660. It should be noted that the positive and negative terminal assembly 620 facing the rear panel 150 is also equipped with a second protective cover 621. The second protective cover 621 has a U-shaped cross-section, designed to shield the positive and negative terminal assembly 620 from rainwater.

[0057] In one possible implementation, see Figures 7 to 8 As shown, the positive and negative terminal block assembly 620 has grooves 623 on both sides, which are suitable for the second protective cover 621 to be inserted into the grooves 623 on the side facing the test chamber. At the same time, a locking platform 622 is provided on the top of the side of the second protective cover 621 facing the test chamber. When the second protective cover 621 is inserted into the grooves 623 on both sides, the locking platform 622 on the top of both sides will lock onto the positive and negative terminal block assembly 620, thereby locking the second protective cover 621 and the positive and negative terminal block assembly 620.

[0058] In one possible implementation, see Figure 4 As shown, a first wire-passing hole 181 is provided on the first mounting plate 180, which is suitable for the wires connecting the low-voltage power supply 360 and the relay 660 to pass through. That is, one end of the wire is connected to the low-voltage power supply 360, and the other end passes through the first wire-passing hole 181 and the third wire-passing hole 670 and is electrically connected to the control board 650 to supply power to the control board 650.

[0059] In one possible implementation, see Figure 5 As shown, the second mounting plate 170 has a second wire hole 171 for the wires connecting the relay 660 and the motor controller 200 to pass through. Specifically, one end of the wire connects to the positive and negative terminal assembly 620 on the side of the relay 660 facing the concave plate 130, and the other end passes through the second wire hole 171 to connect to the positive and negative terminal plug 210 on the side of the motor controller 200, thereby providing high-voltage power to the motor controller 200. Simultaneously, the motor controller 200 is provided with an integrated interface 230 for electrical connection to a low-voltage power supply 360 to provide low-voltage power to the motor controller 200. It should be noted that the integrated interface 230 also integrates an SCI serial port and a CAN serial port. The SCI serial port is used to connect to a host computer for programming, and the CAN serial port is used to connect to a monitoring device (computer host or host computer) to enable data communication between the motor controller 200 and the monitoring device (computer host or host computer).

[0060] Among them, see Figure 5 As shown, the motor controller 200 is mounted on the base plate 160 and fixed inside the base plate 160. That is, a fourth limiting member 250 is provided on the side of the motor controller 200, and the side view of the fourth limiting member 250 is triangular, which is suitable for stabilizing the motor controller 200 inside the base plate 160 and preventing the motor controller 200 from moving on the base plate 160.

[0061] In one possible implementation, four fourth limiters 250 are provided, arranged in pairs on opposite sides of the motor controller 200.

[0062] In one possible implementation, the motor controller 200 is a HYWL-Q900-30 model motor controller 200.

[0063] In one possible implementation, the motor controller 200 is adapted to be electrically connected to the computer host 400 and the motor under test. Specifically, two terminal blocks are provided on the side wall of the housing 100, adapted to connect the motor controller 200 to the motor under test via the two terminal blocks.

[0064] The system includes two terminal blocks: a three-phase aviation terminal block 330 and a resolver aviation terminal block 340, positioned between the first mounting plate 180 and the second mounting plate 170. One end of the three-phase aviation terminal block 330 is electrically connected to the three-phase aviation connector 220 (i.e., the U, V, W phase connector) of the motor controller 200, while the other end is connected to the motor under test (DUT) to provide power and drive it. One end of the resolver aviation terminal block 340 is electrically connected to the DUT, and the other end is electrically connected to the resolver aviation connector 240 of the motor controller 200, feeding back the test data from the DUT to the motor controller 200 for display on the screen 300.

[0065] In one possible implementation, when the motor under test (DUT) is electrically connected to the motor controller 200, one end of the three-phase aviation connector 330 passes through the second wiring hole 171 and connects to the three-phase aviation connector 220 of the motor controller 200, while the other end is connected to the DUT. Simultaneously, one end of the resolver aviation connector 340 passes through the second wiring hole and connects to the resolver aviation connector 240 of the motor controller 200, while the other end is connected to the DUT. This allows the motor controller 200 to drive the DUT via the three-phase wires of the three-phase aviation connector 330, while the DUT feeds back test data to the motor controller 200 via the resolver wires of the resolver aviation connector 340.

[0066] In one possible implementation, see Figure 5 As shown, a first protective cover 331 is also provided, which is used to shield the three-phase aviation terminal block 330 and prevent rainwater from wetting the three-wire aviation connector 330. The first protective cover 331 is snapped into the three-phase aviation terminal block 330, and its connection method is the same as that of the positive and negative terminal block assembly 630 and the second protective cover 621 mentioned above, which will not be described in detail here.

[0067] In one possible implementation, the application also includes a drawer 700 for storing other needed items. The drawer 700 is disposed on the outer wall of the housing 100 and is located below the cover plate 190. Furthermore, the drawer 700 is slidably disposed inside the housing, and the two opposite outer sides of the housing are fixedly connected to the concave plate 130.

[0068] In one possible implementation, casters 800 are also provided at the bottom of the housing 100 for moving the test bench. In another possible implementation, the casters 800 are casters, and four casters are provided, with the four casters respectively located at the four corners of the bottom of the housing 100.

[0069] In one possible implementation, the front panel 110 of the housing 100 is also provided with a plurality of USB sockets 119, which are electrically connected to the computer host 400 and are suitable for connecting other mobile devices such as mouse 141 and keyboard 142.

[0070] In one possible implementation, a high-voltage power switch 111 is provided on the front panel 110, which is suitable for connecting the relay 660 to the high-voltage power switch 111 and then to an external high-voltage power supply, so as to control the power supply of the relay 660 through the high-voltage power switch 111.

[0071] In one possible implementation, the front panel 110 is also equipped with a JUMP switch 112 and a 5V power switch, both of which are connected to the integrated interface 230 of the motor controller 200 to power the SCI serial port in the integrated interface 230 during program burning.

[0072] In one possible implementation, a reset switch 113 is also provided on the front panel 110, and the reset switch 113 is connected to the reset pin of the main control board of the motor controller 200, and its function is to reset the fault signal.

[0073] In one possible implementation, the front panel 110 is also equipped with a 24V switch 115, which is directly connected to the main control board inside the motor controller 200 to supply power to the main control board.

[0074] In one possible implementation, the front panel 110 is also provided with a general aviation plug 350, one side of which is connected to the aforementioned 5V switch 114, JUPM switch, 24V switch 115 and high voltage switch, and the other side is connected to a general aviation power supply to accommodate a variety of different power inputs.

[0075] In one possible implementation, the front panel 110 of the housing 100 also includes a main switch 117, a computer switch 116, and an emergency stop button 118. The main switch 117 is electrically connected to all power supplies and is used to control the power on and off of the entire test bench. The computer switch 116 allows external 220V power to supply power to the host and display screen 300. All power supplies are connected to the emergency stop button 118, allowing for the disconnection of all power in an emergency.

[0076] In one possible implementation, the front panel 110 also has an SCI interface 310 and a CAN interface 320. Both the SCI interface 310 and the CAN interface 320 are suitable for connecting to a laptop computer, with the CAN interface 320 used for inter-device communication and the SCI interface 310 used for programming.

[0077] The testing process for this application is described below:

[0078] In one possible implementation, when testing the motor under test, the motor controller 200 is connected to the motor under test via a three-phase aviation connector 330 and a resolver aviation connector 340. The main switch 117 is turned on to power the test bench, and the computer switch 116 is turned on simultaneously. The computer and host are then turned on, and the test software is started using the mouse 141 and keyboard 142. Test parameters are entered, and the host computer 400 sends test signals. After receiving the test signals, the motor controller 200 drives the motor under test through the three-phase line connected to the three-phase aviation connector 220. The motor under test feeds back the test data to the motor controller 200 through the resolver cable connected to the resolver aviation connector 240 of the motor controller 200. The motor controller 200 transmits the test data to the host computer 400 through the CAN serial port in the integrated interface 230 and displays it on the display screen 300. The test data is observed to comprehensively evaluate the motor under test.

[0079] In another possible implementation, when testing a specific motor under test, a program needs to be programmed. In this case, the motor controller 200 is connected to the motor under test via a three-phase aviation terminal block 330 and a resolver aviation terminal block 340. The main switch 117 is turned on to power the test bench. One side of the SCI interface 310 on the front panel 110 is connected to a host computer (laptop), and the other side is connected to the SCI serial port in the integrated interface 230 of the motor controller 200 to program the motor. Simultaneously, one side of the CAN interface on the front panel 110 is also connected to the host computer (laptop), and the other side is connected to the CAN serial port in the integrated interface 230 of the motor controller 200 to monitor the test data of the motor controller 200 and the motor under test. That is, the program is programmed to the motor controller 200 via the SCI serial port in the integrated interface 230, and data communication is performed via the CAN serial port, thereby testing the motor under test. After receiving the test signal from the host computer, the motor controller 200 drives the motor under test through the three-phase line connected by the three-phase aviation connector 220. The motor under test feeds back the test data to the motor controller 200 through the resolver cable connected to the resolver aviation connector 240 of the motor controller 200. At this time, the motor controller 200 transmits the test data to the host computer (laptop) through the CAN serial port in the integrated interface 230, and displays it on the display screen of the host computer. The test data is observed to comprehensively evaluate the motor under test.

[0080] The drive motor test bench of this application has a simple structure and is easy to use. When conducting the test, you only need to connect the motor controller 200 and the motor under test, and then start the test bench to directly test the motor under test. The operation is simple and does not require complicated wiring or operation procedures to test the motor under test.

[0081] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A drive motor test bench, characterized in that, include: Housing, stand, motor controller for connection to the motor under test, display screen and computer host; The housing has a cavity, and the platform is disposed within the cavity of the housing and is suitable for supporting the housing; The cavity of the housing is provided with a first mounting plate, and the first mounting plate is arranged parallel to the bottom plate of the housing; the computer host is mounted on the first mounting plate, and the motor controller is mounted on the bottom plate; the computer host is electrically connected to the motor controller to output test signals to the motor controller and obtain test data of the motor under test through the motor controller; The display screen is mounted on the side wall of the housing and electrically connected to the computer host, and is suitable for displaying test data; The housing has two terminal blocks on its side wall. One end of each terminal block is connected to the three-phase aviation connector and the resolver aviation connector of the motor controller, respectively. The other end of each terminal block is used to connect to the motor under test.

2. The drive motor test bench according to claim 1, characterized in that, It also includes a low-voltage power supply; the low-voltage power supply is disposed on the first mounting plate and adjacent to the computer host, and the low-voltage power supply is suitable for supplying power to the motor controller.

3. The drive motor test bench according to claim 2, characterized in that, A relay is provided inside the housing. One end of the relay is electrically connected to the low-voltage power supply, and the other end of the relay is electrically connected to the motor controller.

4. The drive motor test bench according to claim 3, characterized in that, Also includes: A second mounting plate; the second mounting plate is disposed below the first mounting plate, and the relay is disposed on the second mounting plate.

5. A drive motor test bench according to claim 4, characterized in that, The first mounting plate has a first wire hole for passing through the wires connected to the low-voltage power supply and the relay.

6. A drive motor test bench according to claim 4, characterized in that, The second mounting plate has a second wire hole for passing through the wires connecting the relay and the motor controller.

7. A drive motor test bench according to claim 1, characterized in that, It also includes a first limiting member, which is adapted to fix the computer host to the first mounting plate.

8. A drive motor test bench according to claim 1, characterized in that, It also includes a drawer, which is mounted on the outer wall of the housing.

9. A drive motor test bench according to claim 1, characterized in that, The bottom of the housing is also equipped with casters, which are suitable for moving the test platform.

Images