Motor testing device

Abstract

The utility model relates to the technical field of electric vehicle testing, in particular to a motor testing device, which comprises an environmental box, a motor testing device and a testing device, the fixing tool is arranged in the testing cavity; the dynamometer is arranged on the fixing tool; the mounting tool is arranged in the test cavity, the mounting tool and the fixing tool are arranged at an interval, and the mounting tool is used for connecting a to-be-tested motor; the to-be-tested motor is connected with the dynamometer. According to the motor testing device provided by the invention, performance testing can be carried out on the motor of the electric vehicle before leaving the factory, the motor does not need to be carried on the electric vehicle, the motor testing convenience is improved, the testing difficulty is effectively reduced, the testing cost is reduced, the time consumption is reduced, and more importantly, a tester does not need to carry out a manual real vehicle road test, and the testing efficiency is improved. Therefore, the risk of safety accidents in the testing process is effectively reduced.

Description

Technical Field

[0001] This application relates to the field of electric vehicle testing technology, and in particular to a motor testing device. Background Technology

[0002] Electric bicycles, also known as "electric vehicles," are purely electric vehicles powered by batteries and driven by electric motors. In recent years, due to their environmental friendliness and convenience, electric bicycles have become very popular in my country.

[0003] To ensure the safety performance of electric vehicles, relevant tests on the motors are necessary. Currently, existing electric vehicle motor testing methods typically involve mounting the motor on the electric vehicle and having testers drive the vehicle for real-world road tests. However, since motor performance cannot be accurately evaluated before leaving the factory, this poses significant safety risks. Furthermore, multiple tests are required for different motor performance characteristics, which is time-consuming, labor-intensive, and necessitates the investment of the entire vehicle, resulting in high costs. Utility Model Content

[0004] The purpose of this application is to provide a motor testing device to address, to some extent, the technical problem in the prior art where electric vehicle motors are subjected to real-road testing by test personnel during performance testing, which poses a safety hazard.

[0005] This application provides a motor testing device, including:

[0006] An environmental chamber, the interior of which forms a test cavity;

[0007] A fixing fixture is disposed inside the test chamber;

[0008] A dynamometer, wherein the dynamometer is mounted on the fixed fixture;

[0009] The mounting fixture is disposed inside the test chamber and is spaced apart from the fixing fixture. The mounting fixture is used to connect the motor to be tested.

[0010] The motor to be tested is connected to the dynamometer.

[0011] In the above technical solution, the motor under test further includes an output shaft, the dynamometer includes a test shaft, and the output shaft is connected to the test shaft.

[0012] In the above technical solution, the fixing fixture further includes:

[0013] base;

[0014] A fixed base is provided on the base, and the dynamometer is rotatably mounted on the fixed base.

[0015] In the above technical solution, the installation fixture further includes:

[0016] Control panel;

[0017] A clamping seat is disposed on the adjusting table;

[0018] A connecting member, which is rod-shaped, is rotatably connected to the clamping seat and connected to the motor under test.

[0019] In the above technical solution, the clamping seat further includes:

[0020] A first fixing part is disposed on the adjustment table;

[0021] The second fixing part is connected to the first fixing part;

[0022] A reinforced connecting part is provided, which is connected to both the first fixing part and the second fixing part.

[0023] In any of the above technical solutions, the clamping base further includes:

[0024] The first clamping part and the second fixing part are provided with a limiting part, and the first clamping part is retractably disposed on the limiting part;

[0025] The second clamping part is retractably disposed on the limiting part, and the first clamping part and the second clamping part can move closer or further away from each other to clamp or release the connector.

[0026] In any of the above technical solutions, the motor testing device further includes a support platform, which is disposed inside the testing cavity;

[0027] The base and the adjustment platform are spaced apart from each other on the support platform.

[0028] In any of the above technical solutions, the support platform is further provided with multiple mounting parts, which are arranged sequentially along the distribution direction of the base and the adjustment platform, and the adjustment platform and the mounting parts are detachably connected.

[0029] In any of the above technical solutions, the test chamber is further provided with at least a temperature regulating device and a humidity regulating device.

[0030] In any of the above technical solutions, the motor testing device further includes a motor testing system, which is connected to the motor under test.

[0031] Compared with the prior art, the beneficial effects of this application are as follows:

[0032] The motor testing device provided in this application includes: an environmental chamber, the interior of which forms a test cavity; a fixed fixture, which is disposed within the test cavity; a dynamometer, which is disposed within the fixed fixture; and an installation fixture, which is disposed within the test cavity, with the installation fixture and the fixed fixture spaced apart, and the installation fixture is used to connect the motor under test; the motor under test is connected to the dynamometer.

[0033] The motor testing device provided in this application can perform performance tests on the motors of electric vehicles before they leave the factory, without having to mount the motors on the electric vehicles. This improves the convenience of motor testing, effectively reduces testing difficulty, testing costs and time. Importantly, it eliminates the need for test personnel to conduct manual road tests on actual vehicles, thereby effectively reducing the risk of safety accidents during the testing process. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the environmental chamber of the motor testing device provided in the embodiments of this application;

[0036] Figure 2 This is a partial structural schematic diagram of the motor testing device provided in the embodiments of this application;

[0037] Figure 3 This is another schematic diagram of the motor testing device provided in the embodiments of this application;

[0038] Figure 4 This is a schematic diagram of the structure of the motor testing device provided in the embodiments of this application.

[0039] Figure label:

[0040] 1-Environmental chamber, 2-Fixed fixture, 201-Base, 202-Fixed seat, 2021-First fixed plate, 2022-Second fixed plate, 3-Dynamometer, 301-Test shaft, 302-Connecting part, 303-First connecting arm, 304-Second connecting arm, 4-Installation fixture, 401-Adjusting platform, 402-Clamping seat, 4021-First fixed part, 4022-Second fixed part, 4023-Reinforced connecting part, 403-First clamping part, 404-Limiting part, 405-First locking hole, 5-Motor under test, 6-Bearing platform, 7-Connector, 8-Control cabinet, 9-Regulated power supply. Detailed Implementation

[0041] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0042] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0043] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., 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 and simplifying 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] The following reference Figures 1 to 4This application describes the motor testing apparatus according to embodiments.

[0047] See Figures 1 to 4 As shown, an embodiment of this application provides a motor testing device. This device includes an environmental chamber 1, a fixed fixture 2, a dynamometer 3, a mounting fixture 4, and a motor under test 5. The environmental chamber 1 has a hollow interior forming a testing cavity. The fixed fixture 2, the dynamometer 3, the mounting fixture 4, and the motor under test 5 are all disposed within the testing cavity. Within the testing cavity, the fixed fixture 2 and the mounting fixture 4 are spaced apart. The dynamometer 3 is mounted on the fixed fixture 2. The motor under test 5 is connected to the mounting fixture 4 and also to the dynamometer 3. When the motor under test 5 starts, it drives the dynamometer 3 to operate. The corresponding operating data of the motor under test 5 can be fed back by the dynamometer 3. It should be noted that the operating data here includes, but is not limited to, torque, power, and voltage.

[0048] Furthermore, the dynamometer 3 in this embodiment is a mature product of the prior art, which can be obtained through procurement. Its working principle is based on existing mature technology, which can be fully understood by those skilled in the art. The specific details will not be elaborated here.

[0049] Furthermore, the dynamometer 3 is connected to a data receiving device, which can be an electrical connection or a communication connection, in order to receive the relevant data measured by the dynamometer 3. The data receiving device can be, but is not limited to, a computer with storage capacity.

[0050] In one embodiment of this application, preferably, the motor under test 5 includes an output shaft, the dynamometer 3 includes a test shaft 301, and the output shaft is connected to the test shaft 301.

[0051] In this embodiment, the output shaft of the motor under test 5 is connected to the test shaft 301 of the dynamometer 3, so that the motor under test 5 can drive the dynamometer 3 to work after it is started.

[0052] Preferably, the end of the test shaft 301 used for connecting with the output shaft is provided with a connecting part 302. The connecting part 302 is specifically a groove structure extending along the axial direction of the test shaft 301, or the connecting part 302 is a notch formed in the side wall of the end portion of the test shaft 301. The length of the notch extends along the length direction of the test shaft 301, and the output shaft can be inserted into the connecting part 302.

[0053] Furthermore, the connecting part 302 also includes a first connecting arm 303 and a second connecting arm 304. The first connecting arm 303 and the second connecting arm 304 are symmetrically arranged on both sides of the connecting part 302 along one of the diameters of the test shaft 301. The first connecting arm 303 and the second connecting arm 304 are respectively used to connect with the motor 5 under test, thereby ensuring that the test shaft 301 and the output shaft can work synchronously.

[0054] Preferably, the first connecting arm 303 and the second connecting arm 304 are respectively provided with connecting holes, which are used to pass through screws or other types of fasteners to connect with the housing of the motor 5 under test.

[0055] In one embodiment of this application, preferably, the fixing fixture 2 includes:

[0056] Base 201;

[0057] The fixed base 202 is set on the base 201, and the dynamometer 3 is rotatably set on the fixed base 202.

[0058] In this embodiment, the base 201 is disposed within the test chamber. The fixed base 202 includes a first fixed plate 2021, a second fixed plate 2022, and a base plate. The base plate is fixedly disposed on the base 201. Preferably, the first fixed plate 2021 and the second fixed plate 2022 are triangular plates. The bottom edge of the first fixed plate 2021 and the bottom plate of the second fixed plate 2022 are respectively connected to the base plate. Preferably, the first fixed plate 2021 and the second fixed plate 2022 have an integral structure with the base plate. The first fixed plate 2021 and the second fixed plate 2022 are spaced apart and face each other, forming an installation space between the first fixed plate 2021, the second fixed plate 2022, and the base plate. A portion of the housing of the dynamometer 3 is disposed within the installation space.

[0059] Furthermore, the first fixing plate 2021 is provided with a through hole, through which the test shaft 301 passes. The test shaft 301 does not contact the inner wall of the through hole, or the test shaft 301 is rotatably connected to the through hole through a bearing, ensuring that the test shaft 301 can rotate smoothly relative to the first fixing plate 2021.

[0060] In one embodiment of this application, preferably, the mounting fixture 4 includes:

[0061] Control panel 401;

[0062] Clamping seat 402 is disposed on adjusting table 401;

[0063] Connector 7 is rod-shaped and rotatably connected to clamp 402. Connector 7 is also connected to the motor 5 under test.

[0064] In one embodiment of this application, preferably, the clamping seat 402 includes:

[0065] First fixing part 4021, the first fixing part 4021 is disposed on the adjustment table 401;

[0066] The second fixing part 4022 is connected to the first fixing part 4021;

[0067] The reinforcing connecting part 4023 is connected to both the first fixing part 4021 and the second fixing part 4022.

[0068] In one embodiment of this application, preferably, the clamping seat 402 further includes:

[0069] The first clamping part 403 and the second fixing part 4022 are provided with a limiting part 404, and the first clamping part 403 is retractably provided on the limiting part 404;

[0070] The second clamping part is retractably disposed on the limiting part 404. The first clamping part 403 and the second clamping part can move closer or further apart to clamp or release the connector 7.

[0071] In this embodiment, the mounting fixture 4 specifically includes an adjustment platform 401, a clamping seat 402, and a connector 7. Inside the test chamber, the adjustment platform 401 and the base 201 are spaced apart along the axial direction of the output shaft. The clamping seat 402 is fixedly mounted on the adjustment platform 401. The connector 7 is rotatably mounted on the clamping seat 402 and is used to connect with the output shaft of the motor 5 under test.

[0072] Furthermore, the clamping base 402 includes a first fixing part 4021, a second fixing part 4022, and a reinforcing connecting part 4023 arranged in an L-shape. The first fixing part 4021 is fixedly mounted on the adjusting table 401. Both the first fixing part 4021 and the second fixing part 4022 are plate-shaped, and the height of the second fixing part 4022 extends vertically. The reinforcing connecting part 4023 specifically has a triangular plate-shaped structure. The reinforcing connecting part 4023 is connected to both the first fixing part 4021 and the second fixing part 4022, thereby improving the stability of the clamping base 402. Preferably, there are at least two reinforcing connecting parts 4023, and all reinforcing connecting parts 4023 are arranged sequentially at intervals at the junction of the first fixing part 4021 and the second fixing part 4022, further strengthening the structural strength and stability of the clamping base 402 and reducing or avoiding large-scale vibrations of the motor 5 under test during operation.

[0073] Furthermore, the clamping base 402 also includes a first clamping part 403 and a second clamping part. The second fixing part 4022 is provided with a limiting part 404 for the connector 7 to pass through. Preferably, the limiting part 404 is a U-shaped notch with the opening facing upward. In this embodiment, the connector 7 specifically has a rod structure. The connector 7 can pass through the limiting part 404. One end of the connector 7 is connected to the output shaft of the motor 5 under test.

[0074] The limiting part 404 includes a first wall surface and a second wall surface that face each other. The first wall surface has a first groove opening towards the second wall surface, and the second wall surface has a second groove opening towards the first wall surface. The first clamping part 403 and the second clamping part have the same structure, both being rod-shaped or column-shaped. The first clamping part 403 is inserted into the first groove and can extend or retract relative to the first groove. The second clamping part is inserted into the second groove and can extend or retract relative to the second groove, thereby allowing the first clamping part 403 and the second clamping part to move closer or further away from each other, thereby clamping or releasing the connector 7.

[0075] Furthermore, a bearing (not shown in the figure) is fitted on the connector 7. When the first clamping part 403 and the second clamping part approach each other, the first clamping part 403 and the second clamping part can respectively clamp the bearing on the connector 7, so that the clamping seat 402 can clamp and support the connector 7. At the same time, it will not affect the synchronous rotation of the connector 7 with the output shaft of the motor under test 5. One end of the output shaft is connected to the connector 7, and the other end of the output shaft is connected to the test shaft 301 of the dynamometer 3, so that both ends of the output shaft are connected and the normal rotation of the output shaft will not be affected, thereby ensuring the stability of the output shaft rotation process.

[0076] Furthermore, a first locking hole 405 is provided on one side of the limiting part 404. The first locking hole 405 communicates with the first groove and is provided with an internal thread so that a bolt can be passed through and threadedly connected to the bolt. As the bolt is continuously tightened, the end of the bolt can abut against the first clamping part 403, thereby locking the first clamping part 403 in the current position. A second locking hole is provided on the other side of the limiting part 404. Another bolt is threadedly connected to the second locking hole to lock the second clamping part, thereby ensuring the stability of the clamping of the connector 7 by the first clamping part 403 and the second clamping part.

[0077] In one embodiment of this application, preferably, the motor testing device further includes a support platform 6, which is disposed inside the testing cavity;

[0078] The base 201 and the adjustment platform 401 are spaced apart on the support platform 6.

[0079] In one embodiment of this application, preferably, the support platform 6 is provided with a plurality of mounting parts, which are arranged sequentially along the distribution direction of the base 201 and the adjustment platform 401, and the adjustment platform 401 and the mounting parts are detachably connected.

[0080] In this embodiment, the support platform 6 has a flat plate structure and is located at the bottom of the environmental chamber 1. The base 201 and the adjustment platform 401 are spaced apart on the support platform 6.

[0081] Furthermore, the support platform 6 is provided with multiple mounting parts at intervals, which are distributed along the axial direction of the output shaft. The adjustment platform 401 can be detachably connected to any of the mounting parts, thereby making the distance between the adjustment platform 401 and the base 201 adjustable to match the testing requirements of motors of different sizes.

[0082] Specifically, the mounting part can be a hole structure opened on the support platform 6. Each mounting part includes two hole structures spaced apart along the width direction of the support platform 6. The adjustment platform 401 has a hole structure corresponding to the position of the mounting part so that bolts can be passed through to connect the adjustment platform 401 to the designated mounting part.

[0083] In one embodiment of this application, preferably, the test chamber is provided with at least a temperature regulating device and a humidity regulating device.

[0084] In this embodiment, the temperature regulation device includes a temperature sensor, a silicon controlled rectifier (SCR), a first electric regulating valve, a ceramic electric heater, and a fan coil unit. By adjusting the opening and closing amount of the first electric regulating valve, the amount of cold water in the coil is controlled. Circulating air is blown through the coil to achieve the purpose of lowering the temperature. When the temperature inside the test chamber reaches the target value, the first electric regulating valve stops regulating, while the ceramic electric heater can raise the temperature of the internal environment of the test chamber, thereby achieving the temperature rise or fall inside the test chamber, thus simulating the temperature environment and performing relevant tests on the motor 5 under the corresponding temperature environment.

[0085] The humidity control device includes a humidity meter, a second electric regulating valve, and a spray humidifier. By adjusting the opening and closing degree of the second electric regulating valve, the spray volume of the spray humidifier can be adjusted, thereby regulating the humidity in the test chamber. This allows the test motor 5 to be tested under the corresponding humidity environment.

[0086] In one embodiment of this application, preferably, the motor testing device further includes a motor testing system, which is connected to the motor 5 under test.

[0087] In this embodiment, the motor testing system includes a control cabinet 8 and a regulated power supply 9. The regulated power supply 9 is electrically connected to the control cabinet 8, and the motor under test 5 is electrically connected to the regulated power supply 9. This allows the control cabinet 8 to adjust the set parameters such as torque, power, and voltage of the motor under test 5, so that the motor under test 5 can run for a predetermined time under the corresponding test parameters, thereby detecting the relevant performance of the motor under test 5.

[0088] It should be noted that both the control cabinet 8 and the regulated power supply 9 are common devices in the field, which can be fully understood by those skilled in the art, and will not be described in detail here.

[0089] In summary, the motor testing device provided in this application can perform performance tests on the motors of electric vehicles before they leave the factory, without having to mount the motors on the electric vehicles. This improves the convenience of motor testing, effectively reduces testing difficulty, testing costs and time. Importantly, it eliminates the need for test personnel to conduct manual road tests on actual vehicles, thereby effectively reducing the risk of safety accidents during the testing process and avoiding personal injury.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A motor testing device, characterized in that, include: An environmental chamber, the interior of which forms a test cavity; A fixing fixture is disposed inside the test chamber; A dynamometer, wherein the dynamometer is mounted on the fixed fixture; The mounting fixture is disposed inside the test chamber and is spaced apart from the fixing fixture. The mounting fixture is used to connect the motor to be tested. The motor to be tested is connected to the dynamometer.

2. The motor testing device according to claim 1, characterized in that, The motor under test includes an output shaft, and the dynamometer includes a test shaft, with the output shaft connected to the test shaft.

3. The motor testing device according to claim 1, characterized in that, The fixed fixture includes: base; A fixed base is provided on the base, and the dynamometer is rotatably mounted on the fixed base.

4. The motor testing device according to claim 3, characterized in that, The installation fixture includes: Control panel; A clamping seat is disposed on the adjusting table; A connecting member, which is rod-shaped, is rotatably connected to the clamping seat and connected to the motor under test.

5. The motor testing device according to claim 4, characterized in that, The clamping seat includes: A first fixing part is disposed on the adjustment table; The second fixing part is connected to the first fixing part; A reinforced connecting part is provided, which is connected to both the first fixing part and the second fixing part.

6. The motor testing device according to claim 5, characterized in that, The clamping base also includes: The first clamping part and the second fixing part are provided with a limiting part, and the first clamping part is retractably disposed on the limiting part; The second clamping part is retractably disposed on the limiting part, and the first clamping part and the second clamping part can move closer or further away from each other to clamp or release the connector.

7. The motor testing device according to claim 5, characterized in that, The motor testing device also includes a support platform, which is disposed inside the testing chamber; The base and the adjustment platform are spaced apart from each other on the support platform.

8. The motor testing device according to claim 7, characterized in that, The support platform is provided with multiple mounting parts, which are arranged sequentially along the distribution direction of the base and the adjustment platform. The adjustment platform and the mounting parts are detachably connected.

9. The motor testing apparatus according to any one of claims 1 to 8, characterized in that, The test chamber is equipped with at least a temperature control device and a humidity control device.

10. The motor testing apparatus according to any one of claims 1 to 8, characterized in that, The motor testing device also includes a motor testing system, which is connected to the motor under test.

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