New energy electric vehicle motor safety dynamometer

Abstract

The utility model provides a new energy electric vehicle motor safety dynamometer which is characterized by comprising a motor fixing device which can fix a new energy electric vehicle motor to be tested, and the new energy electric vehicle motor to be tested is connected with a test system through a flange; the motor fixing device is fixedly arranged on one side of the rack base; one end of each damping device is connected with the other side of the rack base, the other end of each damping device is fixedly connected with the outside, and the damping devices are used for reducing vibration generated when the new energy electric vehicle motor safety dynamometer works. Performance testing can be carried out on a driving motor, a controller and the like, and the rotating speed, the torque, the temperature and the like of the motor can be accurately measured and controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy electric vehicles, in particular to a safety dynamometer for a motor of a new energy electric vehicle. Background Art

[0002] With the continuous expansion of the electric vehicle market, the development of an effective test platform for the safety of electric vehicle motors of various types and models is of great significance for increasing the market share of electric vehicles and responding to changes in the electric vehicle market. As the power source of electric vehicles, the working performance of the drive motor directly affects the power and comfort of electric vehicles. Due to the complex structure of the drive motor system, it has always been in the primary position in the research and development technology of new energy vehicles.

[0003] With the continuous breakthroughs in electric vehicle technology, the research on the safety performance test of electric vehicle motors is an important part of electric vehicle research and development, and also a very important topic. The research on the safety performance test of electric vehicle motors not only provides a reference standard for evaluating the performance of electric vehicles, but also provides a basis for improvement for the advancement of technology in the field of electric vehicles. At the same time, it reduces the risks in the development and design stages of drive motors, which is of great significance for promoting the development of my country's electric vehicle market.

[0004] There are big differences between electric vehicle motor safety dynamometers and traditional engine test platforms and industrial motor test platforms. When testing the safety of electric vehicle motors, the test platform can simulate its load, simulate various driving conditions of electric vehicles during driving, and comprehensively evaluate the power performance and power consumption of electric vehicles, thereby obtaining the performance indicators of the entire vehicle. Therefore, a new energy electric vehicle motor safety dynamometer is urgently needed. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] Based on the above problems, the utility model provides a new energy electric vehicle motor safety dynamometer to alleviate technical problems such as difficulty in measuring motors in the prior art.

[0007] (II) Technical solution

[0008] The utility model provides a new energy electric vehicle motor safety dynamometer, which is characterized by comprising:

[0009] A motor fixing device, capable of fixing the new energy electric vehicle motor to be tested, wherein the new energy electric vehicle motor to be tested is connected to the test system through a flange;

[0010] A stand base, the motor fixing device is fixedly arranged on one side of the stand base; and

[0011] Multiple shock absorbing devices, one end of each of the shock absorbing devices is connected to the other side of the test bench base, and the other end of the shock absorbing device is fixedly connected to the outside, and the shock absorbing device is used to reduce the vibration generated when the new energy electric vehicle motor safety dynamometer is working.

[0012] In an embodiment of the utility model, the new energy electric vehicle motor safety dynamometer is characterized in that the motor fixing device comprises:

[0013] A base mounting portion, one side of which is fixedly connected to the stand base by bolts; and

[0014] The motor mounting part is fixedly connected to the other side of the base mounting part, and the motor mounting part can be fixedly connected to the motor of the new energy electric vehicle to be tested.

[0015] In an embodiment of the utility model, the new energy electric vehicle motor safety dynamometer is characterized in that the motor mounting portion includes:

[0016] A motor mounting plate, wherein the new energy electric vehicle motor to be tested is connected to the motor mounting plate via a motor mounting plate;

[0017] Two webs, each of which is in a right triangle shape, and the two webs are connected to the base mounting portion and the motor mounting plate in the same manner; and

[0018] Two reinforcing plates are in the shape of a right triangle, and each of the reinforcing plates is connected to the motor mounting plate and one of the webs.

[0019] In an embodiment of the utility model, the new energy electric vehicle motor safety dynamometer is characterized in that one right-angled side of the web in the shape of a right-angled triangle is fixedly connected to the base mounting portion, and the other right-angled side of the web in the shape of a right-angled triangle is connected to the motor mounting plate by bolts.

[0020] In an embodiment of the utility model, the new energy electric vehicle motor safety dynamometer is characterized in that one right-angled side of the reinforcing plate in the shape of a right-angled triangle is fixedly connected to the motor mounting plate, and the other right-angled side of the reinforcing plate in the shape of a right-angled triangle is fixedly connected to the web.

[0021] In an embodiment of the utility model, the new energy electric vehicle motor safety dynamometer is characterized in that it has two motor fixing devices, and the two motor fixing devices are symmetrically arranged on the bench base.

[0022] In an embodiment of the utility model, the new energy electric vehicle motor safety dynamometer is characterized in that the bench base is provided with a trapezoidal groove, and the motor fixing device is connected to the bench base through the trapezoidal groove bolts.

[0023] In the embodiment of the utility model, the new energy electric vehicle motor safety dynamometer is characterized in that the shock absorbing device comprises:

[0024] A telescopic portion, one end of which is fixedly connected to the stand base; and

[0025] The fixing part is fixedly connected to the outside and sleeved on the other end of the telescopic part. The telescopic part can move relative to the fixing part in the axial direction of the telescopic part.

[0026] (III) Beneficial effects

[0027] It can be seen from the above technical solution that the utility model new energy electric vehicle motor safety dynamometer has at least one or part of the following beneficial effects:

[0028] It can realize performance testing of drive motors and controllers, and accurately measure and control motor speed, torque, temperature, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of a new energy electric vehicle motor safety dynamometer according to an embodiment of the utility model.

[0030] Figure 2 It is a schematic structural diagram of a motor fixing device according to an embodiment of the utility model.

[0031] Figure 3 This is a schematic structural diagram of the belly plate of the motor fixing device according to an embodiment of the utility model.

[0032] Figure 4 It is a structural schematic diagram of the stand base of an embodiment of the utility model.

[0033] Figure 5 It is a schematic structural diagram of the shock absorbing device according to an embodiment of the utility model.

[0034] [Description of the main components of the embodiment of the utility model in the accompanying drawings]

[0035] 1 Motor fixing device

[0036] 11 Base mounting part

[0037] 12 Motor mounting part

[0038] 121 Motor mounting plate

[0039] 122 belly plate

[0040] 123 reinforcement plate

[0041] 124 Motor mounting plate

[0042] 2 Flange

[0043] 3 Stand base

[0044] 31 Trapezoidal slot

[0045] 4. Shock absorber

[0046] 41 Telescopic part

[0047] 42 Fixed part DETAILED DESCRIPTION

[0048] The utility model provides a new energy electric vehicle motor safety dynamometer. The new energy electric vehicle motor safety dynamometer has a reasonable structural design and can significantly improve the experimental performance. The new energy electric vehicle motor safety dynamometer can meet the test requirements of various experimental targets. The new energy electric vehicle motor safety dynamometer can perform performance tests on drive motors and controllers, etc. It can accurately measure and control the motor speed, torque and temperature during the experiment. It can overcome the main shortcomings and deficiencies of existing dynamometers.

[0049] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0050] In an embodiment of the utility model, a new energy electric vehicle motor safety dynamometer is provided, such as Figure 1 As shown, the new energy electric vehicle motor safety dynamometer comprises: a motor fixing device 1, which can fix the new energy electric vehicle motor to be tested, and the new energy electric vehicle motor to be tested is connected to the test system through a flange 2. A bench base 3, and the motor fixing device 1 is fixedly arranged on one side of the bench base 3. A plurality of shock absorbing devices 4, one end of each shock absorbing device 4 is connected to the other side of the bench base 3, and the other end of the shock absorbing device 4 is fixedly connected to the outside, and the shock absorbing device 4 is used to reduce the vibration generated when the new energy electric vehicle motor safety dynamometer is working.

[0051] In the embodiment of the present utility model, Figure 2 As shown, a new energy electric vehicle motor safety dynamometer, wherein the motor fixing device comprises: a base mounting portion 11, one side of which is fixedly connected to the bench base by bolts. A motor mounting portion 12 is fixedly connected to the other side of the base mounting portion 11, and the motor mounting portion 12 can be fixedly connected to the new energy electric vehicle motor to be tested.

[0052] In the embodiment of the present utility model, Figure 2 and 3 As shown, a new energy electric vehicle motor safety dynamometer, wherein the motor mounting portion 12 comprises: a motor mounting plate 121, and the new energy electric vehicle motor to be tested is connected to the motor mounting plate 121 through a motor mounting plate 124. Two webs 122, the webs 122 are in the shape of a right triangle, and the two webs 122 are connected to the base mounting portion 11 and the motor mounting plate 121 in the same form. Two reinforcing plates 123, the reinforcing plates 123 are in the shape of a right triangle, and each reinforcing plate 123 is connected to the motor mounting plate 121 and one web 122.

[0053] In the embodiment of the present utility model, Figure 2 and 3 As shown, a new energy electric vehicle motor safety dynamometer is provided, wherein one right-angled side of the right-angled triangle-shaped web 122 is fixedly connected to the base mounting portion 11, and the other right-angled side of the right-angled triangle-shaped web 122 is connected to the motor mounting plate 121 by bolts.

[0054] In the embodiment of the present utility model, Figure 2 and 3 As shown, a new energy electric vehicle motor safety dynamometer is provided, wherein one right-angled side of the reinforcing plate 123 in the shape of a right-angled triangle is fixedly connected to the motor mounting plate 121 , and the other right-angled side of the reinforcing plate 123 in the shape of a right-angled triangle is fixedly connected to the web 122 .

[0055] In the embodiment of the present utility model, Figure 1 As shown, a new energy electric vehicle motor safety dynamometer is provided with two motor fixing devices 1 , and the two motor fixing devices 1 are symmetrically arranged on a test bench base 3 .

[0056] Among them, the towing type new energy electric vehicle motor safety dynamometer uses two motors to tow each other, and replaces the traditional dynamometer with a load motor with the same power as the motor being tested, which reduces the energy waste of the test platform and overcomes the disadvantage that the dynamometer cannot be towed in reverse. In the experiment, when the motor being tested is running in the electric state, the load motor can work in the power generation mode, and the generated electric energy is fed back to the power grid through the inverter device to achieve energy recycling; when the load motor is in the electric state, the motor being tested is in the power generation braking mode. This type of new energy electric vehicle motor safety dynamometer has high operating efficiency and low energy loss.

[0057] In the embodiment of the present utility model, Figure 4 As shown, a new energy electric vehicle motor safety dynamometer, wherein the test bench base 3 is provided with a trapezoidal groove 31, and the motor fixing device is bolted to the test bench base 3 through the trapezoidal groove 31.

[0058] In the embodiment of the present utility model, Figure 5 As shown, the new energy electric vehicle motor safety dynamometer, wherein the shock absorbing device comprises: a telescopic part 41, one end of which is fixedly connected to the bench base. A fixed part 42, which is fixedly connected to the outside and sleeved on the other end of the telescopic part 41, and the telescopic part 41 can move relative to the fixed part 42 in the axial direction of the telescopic part 41.

[0059] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each element and method are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0060] Based on the above description, those skilled in the art should have a clear understanding of the utility model of the new energy electric vehicle motor safety dynamometer.

[0061] In summary, the utility model provides a new energy electric vehicle motor safety dynamometer. According to the relevant specifications of the new energy electric vehicle motor safety dynamometer test, there are many drive motor performance test items, and it is necessary to analyze the drive motor performance test items. The test object of the new energy electric vehicle motor safety dynamometer is the electric vehicle drive motor. The reasonable structural design of the new energy electric vehicle motor safety dynamometer can significantly improve the experimental performance. The new energy electric vehicle motor safety dynamometer can meet the testing requirements of various experimental objectives. The new energy electric vehicle motor safety dynamometer has the ability to perform performance tests on drive motors and controllers, etc. It can accurately measure and control the motor speed, torque and temperature during the experiment.

[0062] It should also be noted that the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "back", "left", "right", etc., are only reference directions of the drawings and are not intended to limit the scope of protection of the present invention. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or configurations will be omitted when they may cause confusion in the understanding of the present invention.

[0063] The shapes and sizes of the components in the figures do not reflect the actual size and proportion, but only illustrate the contents of the embodiments of the utility model. In addition, in the claims, any reference symbols between brackets should not be constructed as limitations to the claims.

[0064] Unless otherwise indicated, the numerical parameters in this specification and the appended claims are approximate values ​​and can be changed according to the desired properties obtained by the content of the utility model. Specifically, all numbers used in the specification and claims to express the content of the composition, reaction conditions, etc. should be understood to be modified by the term "about" in all cases. In general, the meaning of the expression is to include changes of ±10% in some embodiments, ±5% in some embodiments, ±1% in some embodiments, and ±0.5% in some embodiments by a specific number.

[0065] Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.

[0066] The ordinal numbers used in the specification and claims, such as "first", "second", "third", etc., to modify the corresponding elements, do not themselves mean that the elements have any ordinal numbers, nor do they represent the order of one element and another element, or the order in the manufacturing method. The use of these ordinal numbers is only used to clearly distinguish a component with a certain name from another component with the same name.

[0067] In addition, unless the steps are specifically described or must occur in sequence, the order of the above steps is not limited to the above list, and can be changed or rearranged according to the required design. And the above embodiments can be mixed and matched with each other or with other embodiments based on design and reliability considerations, that is, the technical features in different embodiments can be freely combined to form more embodiments.

[0068] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and set in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and in addition they may be divided into multiple submodules or subunits or subcomponents. All features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this manner may be combined in any combination, except that at least some of such features and / or processes or units are mutually exclusive. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose. Furthermore, in a unit claim that lists several devices, several of these devices may be embodied by the same hardware item.

[0069] Similarly, it should be understood that in order to streamline the utility model and help understand one or more of the various disclosed aspects, in the above description of the exemplary embodiments of the utility model, the various features of the utility model are sometimes grouped together into a single embodiment, figure, or description thereof. However, the disclosed method should not be interpreted as reflecting the following intention: the claimed utility model requires more features than the features explicitly stated in each claim. More specifically, as reflected in the following claims, the disclosed aspects are less than all the features of the single embodiment disclosed above. Therefore, the claims following the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the utility model.

[0070] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new energy electric vehicle motor safety dynamometer, characterized in that: include: A motor fixing device, capable of fixing the new energy electric vehicle motor to be tested, wherein the new energy electric vehicle motor to be tested is connected to the test system through a flange; A stand base, wherein the motor fixing device is fixedly arranged on one side of the stand base; as well as Multiple shock absorbing devices, one end of each of the shock absorbing devices is connected to the other side of the test bench base, and the other end of the shock absorbing device is fixedly connected to the outside, and the shock absorbing device is used to reduce the vibration generated when the new energy electric vehicle motor safety dynamometer is working.

2. The new energy electric vehicle motor safety dynamometer according to claim 1, characterized in that: The motor fixing device comprises: A base mounting portion, one side of which is fixedly connected to the stand base by bolts; and The motor mounting part is fixedly connected to the other side of the base mounting part, and the motor mounting part can be fixedly connected to the motor of the new energy electric vehicle to be tested.

3. The new energy electric vehicle motor safety dynamometer according to claim 2, characterized in that: The motor mounting portion comprises: A motor mounting plate, wherein the new energy electric vehicle motor to be tested is connected to the motor mounting plate via a motor mounting plate; Two webs, each of which is in a right triangle shape, and the two webs are connected to the base mounting portion and the motor mounting plate in the same manner; and Two reinforcing plates are in the shape of a right triangle, and each of the reinforcing plates is connected to the motor mounting plate and one of the webs.

4. The new energy electric vehicle motor safety dynamometer according to claim 3, characterized in that: One right-angled side of the web in the shape of a right-angled triangle is fixedly connected to the base mounting portion, and the other right-angled side of the web in the shape of a right-angled triangle is connected to the motor mounting plate by bolts.

5. The new energy electric vehicle motor safety dynamometer according to claim 3, characterized in that: One right-angled side of the reinforcing plate in the shape of a right-angled triangle is fixedly connected to the motor mounting plate, and the other right-angled side of the reinforcing plate in the shape of a right-angled triangle is fixedly connected to the web.

6. The new energy electric vehicle motor safety dynamometer according to claim 1, characterized in that: There are two motor fixing devices, and the two motor fixing devices are symmetrically arranged on the stand base.

7. The new energy electric vehicle motor safety dynamometer according to claim 1, characterized in that: The platform base is provided with a trapezoidal groove, and the motor fixing device is connected to the platform base through the trapezoidal groove bolts.

8. The new energy electric vehicle motor safety dynamometer according to claim 1, characterized in that: The shock absorbing device comprises: A telescopic portion, one end of which is fixedly connected to the stand base; and The fixing part is fixedly connected to the outside and sleeved on the other end of the telescopic part. The telescopic part can move relative to the fixing part in the axial direction of the telescopic part.

Images