CN210802923U - New energy automobile electric drive system is to dragging rack - Google Patents
New energy automobile electric drive system is to dragging rack Download PDFInfo
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- CN210802923U CN210802923U CN201921848600.8U CN201921848600U CN210802923U CN 210802923 U CN210802923 U CN 210802923U CN 201921848600 U CN201921848600 U CN 201921848600U CN 210802923 U CN210802923 U CN 210802923U
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Abstract
The utility model relates to a new energy automobile electric drive system is to dragging rack, including the environment case, be provided with 2 electric drive assemblies, 2 in the environment case the electric drive assembly respectively through the transmission shaft with set up in the gear box of the outside both sides of environment case is connected. Compared with the prior art, the utility model has the advantages of with low costs, efficiency of software testing is high.
Description
Technical Field
The utility model belongs to the technical field of new energy automobile electric drive technique and specifically relates to a new energy automobile electric drive system is to dragging the rack.
Background
According to the standard requirements of various host factories of automobiles at home and abroad at present, the electric drive system of the new energy automobile needs to pass the verification of a high-temperature endurance test and a variable-temperature endurance test, and the test period is long.
At present, the verification test in China can only be implemented on a dual-motor rack, as shown in fig. 1, the key components of the rack are two dynamometers and only one sample can be tested, so that the test cost is extremely high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a new energy automobile electric drive system is to dragging the rack in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a new energy automobile electric drive system is to dragging rack, includes the environment case, be provided with 2 electric drive assemblies in the environment case, 2 the electric drive assembly respectively through the transmission shaft with set up in 2 gear boxes of environment case outside both sides are connected.
Further, 2 of the electric drive assemblies are disposed parallel to each other within the environmental chamber.
Furthermore, the environment box adopts a cuboid structure.
Further, the inside of the environment box is hollow.
Further, the environment box is also connected with an air cooling device through a pipeline.
Furthermore, the environment box is also provided with a visual window.
Further, the air cooling device comprises an air radiator or an air cooler.
Furthermore, the environment box can be separately hoisted, and the convenience in installation and monitoring of the sample piece is ensured.
Further, the environmental chamber should be left with access to the water line channel.
Furthermore, the environment box is provided with a high-low voltage cable access passage.
Furthermore, the environment box should be configured with a temperature and humidity sensor.
Further, 2 gear boxes are symmetrically arranged at two outer side positions of the environment box.
Further, an odd number of gear sets are arranged in the gear box to ensure that the rotation directions of the two test sample pieces are consistent.
Furthermore, an oil temperature monitoring sensor and an oil level control switch are arranged on the gearbox.
Further, the gear box is provided with an oil cooling circulation system.
Compared with the prior art, the utility model has the advantages of it is following:
(1) use B2B rack to new energy automobile electric drive system endurance test and go on, the utility model discloses the aspect has replaced two dynamometer machines with the gear box in the rack is built, has reduced the rack and has built the expense.
(2) Use a rack to test two appearance pieces simultaneously from experimental angle, the utility model discloses the rack has been built the aspect and has replaced two dynamometer machines with the gear box, can reduce test cost by a wide margin.
Drawings
To further clarify the above and other advantages and features of various embodiments of the present invention, a more particular description of various embodiments of the invention will be rendered by reference to the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. Also, the relative positions and sizes of the respective portions shown in the drawings are exemplary, and should not be understood as uniquely determining positional or dimensional relationships between the respective portions.
FIG. 1 is a diagram of a test architecture of an electric drive system of a new energy automobile in the prior art;
fig. 2 is a diagram of a new energy automobile electric drive system test architecture of the present invention;
fig. 3 is a schematic structural view of an environment box used by the electric drive system of the new energy automobile for a towing rack of the present invention;
fig. 4 is the utility model discloses a new energy automobile electric drive system is to the gear box structural schematic that drags the rack and use.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Examples
As shown in fig. 2 the utility model discloses a new energy automobile electric drive system tests framework picture, include wherein the utility model discloses new energy automobile electric drive system is to the pallet, including the environment case, be provided with 2 electric drive assemblies in the environment case, 2 electric drive assemblies are connected with setting up in 2 gear boxes of the outside both sides of environment case through the transmission shaft separately. 2 electric drive assemblies are parallel to each other and are set up in the environment case, and 2 gear boxes are symmetrical each other and are set up in environment case outside both sides position department.
As shown in fig. 3 the utility model discloses a new energy automobile electric drive system is to dragging the used environment case schematic structure of rack, can know from the picture, the environment case adopts the cuboid structure, and its inside is hollow, the environment case still is connected with air cooling device through the pipeline, air cooling device includes air radiator or air cooler, be equipped with the visual window on the box, and business turn over water pipe passageway and high-low voltage cable access way still leave, the bottom half still is equipped with temperature and humidity sensor, its whole separable hoist and mount, it is convenient to guarantee that sample installation and monitoring.
In this example, the internal dimensions of the environmental chamber are about (L x W x H): 1700mm 1500mm 1100mm, the air cooling device should be as close to the environmental chamber as possible, so that the air passages are as small as possible, ensuring cooling effect.
The relevant parameter design and requirements of the air cooling device are as follows in table 1:
table 1: design of relevant parameters and requirements of air cooling device
As shown in fig. 4 the utility model discloses a new energy automobile electric drive system is to the gear box schematic structure that the trawling rack was used, can know from the picture, and the built-in odd number gear train of gear box is in order to guarantee that two test sample piece direction of rotation are unanimous, is equipped with oil temperature monitoring sensor and oil level control switch on its one side, should dispose oil cooling circulation system in order to guarantee safe operation in addition.
As can be seen from fig. 3 and 4, the two output shafts of the gear box in fig. 4 are respectively connected with the two test samples inside the gear box in fig. 3 through the two corresponding holes on the environmental box in fig. 3 by the connecting transmission shaft.
The basic design principle of the utility model is as follows:
the durability test of the electric drive system is designed to verify its life in actual use by an acceleration model. The B2B test platform was designed for durability testing by placing two samples (corresponding to the electric drive assembly) in an environmental chamber to simulate the desired environmental conditions, temperature and humidity. The shafts of the two sample pieces are mechanically connected through gear boxes on two sides. Thus, while one sample is operating in motor mode, the other is operating in generator mode. In the test process, the switching between the motor mode and the generator mode of the test sample piece can be realized through software control. Although the test is carried out by adopting the B2B bench, the time ratio of the motor operation mode cannot completely simulate the actual operation condition, in essence, whether the motor operates in a generator or a motor, and the key for checking the service life of the motor is to see the reliability of the mechanical structure of the motor and the durability of insulation in the operation process. The effect of nearly equal and opposite torques on the mechanical structure and the effect of heating on the insulation caused by comparable currents during operation of the two split motors can ensure the effectiveness of the endurance test using the B2B skid.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a new energy automobile electric drive system is to dragging rack, its characterized in that includes the environment case, be provided with 2 electric drive assemblies in the environment case, 2 the electric drive assembly respectively through the transmission shaft with set up in 2 gear boxes of environment case outside both sides are connected.
2. The counter towing bracket of the electric drive system of the new energy automobile according to claim 1, wherein 2 electric drive assemblies are arranged in parallel with each other in the environmental chamber.
3. The counter towing rack of the electric drive system of the new energy automobile according to claim 1, wherein 2 gear boxes are symmetrically arranged at two outer side positions of the environmental box.
4. The counter towing bracket of the electric driving system of the new energy automobile as claimed in claim 1, wherein the environmental box is of a rectangular parallelepiped structure.
5. The counter towing bracket of the electric driving system of the new energy automobile according to claim 1, wherein the inside of the environmental chamber is hollow.
6. The counter towing bracket of a new energy automobile electric drive system according to claim 1, wherein an odd number of gear sets are built in the gear box.
7. The counter-towing rack of the electric drive system of the new energy automobile according to claim 1, wherein an oil temperature monitoring sensor and an oil level control switch are arranged on the gearbox.
8. The counter towing bracket of the electric drive system of the new energy automobile according to claim 1, wherein the environmental chamber is further connected with an air cooling device through a pipeline.
9. The counter towing bracket of the electric driving system of the new energy automobile as claimed in claim 1, wherein the environmental chamber is further provided with a visual window.
10. The counter towing bracket of the electric drive system of the new energy automobile according to claim 8, wherein the air cooling device comprises an air radiator or an air cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921848600.8U CN210802923U (en) | 2019-10-30 | 2019-10-30 | New energy automobile electric drive system is to dragging rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921848600.8U CN210802923U (en) | 2019-10-30 | 2019-10-30 | New energy automobile electric drive system is to dragging rack |
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| Publication Number | Publication Date |
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| CN210802923U true CN210802923U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921848600.8U Active CN210802923U (en) | 2019-10-30 | 2019-10-30 | New energy automobile electric drive system is to dragging rack |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111380698A (en) * | 2020-03-06 | 2020-07-07 | 浙江零跑科技有限公司 | Be used for new energy automobile to drive power assembly to dragging test bench structure |
| CN112255491A (en) * | 2020-12-24 | 2021-01-22 | 北京新能源汽车股份有限公司 | Electric drive assembly test system and test method of electric drive assembly test system |
| CN112834838A (en) * | 2020-12-26 | 2021-05-25 | 中国汽车工程研究院股份有限公司 | Electric drive assembly testing arrangement |
-
2019
- 2019-10-30 CN CN201921848600.8U patent/CN210802923U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111380698A (en) * | 2020-03-06 | 2020-07-07 | 浙江零跑科技有限公司 | Be used for new energy automobile to drive power assembly to dragging test bench structure |
| CN111380698B (en) * | 2020-03-06 | 2022-04-01 | 浙江零跑科技股份有限公司 | Be used for new energy automobile to drive power assembly to dragging test bench structure |
| CN112255491A (en) * | 2020-12-24 | 2021-01-22 | 北京新能源汽车股份有限公司 | Electric drive assembly test system and test method of electric drive assembly test system |
| CN112834838A (en) * | 2020-12-26 | 2021-05-25 | 中国汽车工程研究院股份有限公司 | Electric drive assembly testing arrangement |
| CN112834838B (en) * | 2020-12-26 | 2024-03-08 | 中国汽车工程研究院股份有限公司 | Electric drive assembly testing device |
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