Electric automobile energy consumption testing device

Abstract

The utility model relates to the technical field of vehicle testing, and discloses an electric vehicle energy consumption testing device comprising a testing platform, the testing platform is fixedly connected with a mounting rack, the mounting rack is fixedly connected with a bearing, the inner ring of the bearing is sleeved with a rotating shaft, the bearing is fixedly connected with a roller, and the outer wall of the bearing is provided with a heat radiation assembly. According to the electric automobile energy consumption testing device, air flow takes away heat generated by bearing operation, the heat is conducted into the heat dissipation sleeve, absorbed by cooling liquid arranged in the annular cavity and conducted out through the cooling fins, the magnetic piece rotates to drive the magnet and the push plate to move annularly, the cooling liquid is pushed to move, the cooling liquid is circulated, and the energy consumption of the bearing is tested. When the water flow passes through the hole grooves, the water can generate turbulent flow, so that the mixing degree of the water flows with different temperatures is improved, and relatively fast flowing and disturbance are beneficial to breaking a temperature layer and increasing the surface area and the contact surface of the water flow, so that the heat transfer efficiency is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle testing, in particular to an energy consumption testing device for an electric vehicle. Background Art

[0002] During the research, development, and testing of electric vehicles, the performance parameters of the samples need to be tested. By using an electric vehicle energy consumption measurement device combined with battery power and power measurement data of each wheel, the performance parameters of electric vehicles can be effectively tested. This testing method can accurately evaluate the overall energy consumption of electric vehicles and calculate the power conversion rate.

[0003] According to a publicly disclosed electric vehicle energy consumption test device (publication number: CN218917530U), the aforementioned application includes a controller connected to a power analyzer on one side, and symmetrically arranged dynamometer units. Each dynamometer unit consists of a first roller embedded in the bottom of a workbench and a second roller to the side of the first roller. These rollers are horizontally aligned and connected to the inner wall of the workbench via a rotating shaft.

[0004] However, in actual use, when the vehicle drives the drum, the bearings generate friction and generate significant heat. Over time, the bearings are unable to dissipate heat effectively. This increased temperature causes internal components to expand, making the bearing unstable. This can lead to vibration, noise, and shaft misalignment, compromising overall operational stability. To address this, we developed an electric vehicle energy consumption test device. Utility Model Content

[0005] The purpose of the present utility model is to provide an electric vehicle energy consumption test device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an electric vehicle energy consumption test device, comprising a test platform, a triangular block fixedly connected to the right side of the test platform, a stopper fixedly connected to the top end face of the test platform, a mounting frame fixedly connected to the end of the test platform away from the triangular block, the mounting frame fixedly connected to a bearing, the inner ring of the bearing being sleeved with a rotating shaft, the bearing fixedly connected to a roller, and a heat dissipation component provided on the outer wall of the bearing, the heat dissipation component comprising:

[0007] The fan blades are fixedly connected to the side wall of the rotating shaft, and the side wall of the drum is provided with a through hole;

[0008] The heat dissipation sleeve, the outer ring of the bearing is fixedly connected to the heat dissipation sleeve, an annular cavity is opened in the heat dissipation sleeve, the outer wall of the heat dissipation sleeve is fixedly connected to a heat sink, the inner wall of the annular cavity is provided with a push plate, the push plate and the magnet, the outer wall of the roller is fixedly connected to a magnetic part.

[0009] Preferably, a hole groove is provided on the side wall of the push plate.

[0010] Preferably, the holes and grooves are connected to both sides of the push plate, and water can flow through the holes and grooves, thereby improving the mixing degree of the water flow.

[0011] Preferably, the magnetic member is magnetically connected to the magnet, and the rotation of the drum can drive the magnet and the push plate to move.

[0012] Preferably, the side wall of the mounting frame is provided with an opening, and the opening is sleeved with the rotating shaft. When the fan blades rotate, air flows through the opening to the bearing, taking away the heat generated by the operation of the bearing.

[0013] Preferably, the through hole is connected to both sides of the drum, and the air flow sucked into the bearing is discharged through the opening on the other side through the through hole.

[0014] Compared with the existing technology, the present invention provides an electric vehicle energy consumption test device with the following beneficial effects:

[0015] 1. The electric vehicle energy consumption test device is provided with a through hole, a heat dissipation sleeve, an annular cavity, a heat sink, a magnetic part, a magnet, and a push plate. Air flow is sucked in through the opening. When the air flow passes through the bearing, the heat generated by the bearing operation is taken away and discharged from the opening on the other side through the through hole. When the air flow passes through the heat dissipation sleeve, the heat is conducted into the heat dissipation sleeve and absorbed by the coolant arranged in the annular cavity. The heat is conducted out through the heat sink. The rotation of the drum drives the magnetic part to rotate. The rotation of the magnetic part drives the magnet and the push plate to move in an annular motion, which promotes the movement of the coolant, so that the coolant circulates and improves the heat conduction effect.

[0016] 2. The electric vehicle energy consumption test device is equipped with slots. When water flows through the slots, the water will be disturbed, thereby improving the mixing degree of water flows at different temperatures. The faster flow and disturbance help break the temperature layer, increase the surface area and contact surface of the water flow, thereby enhancing the heat transfer efficiency and improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the roller structure of the utility model;

[0019] Figure 3 This is an exploded view of the roller of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the heat dissipation sleeve of the present utility model.

[0021] In the figure: 1. test platform; 2. triangular block; 3. stop block; 4. mounting bracket; 5. opening; 6. bearing; 7. rotating shaft; 8. fan blade; 9. through hole; 10. heat dissipation sleeve; 11. annular cavity; 12. heat sink; 13. magnetic part; 14. magnet; 15. push plate; 16. hole groove; 17. roller. DETAILED DESCRIPTION

[0022] like Figures 1-4 As shown, the utility model provides a technical solution: an electric vehicle energy consumption test device, including a test platform 1, a triangular block 2 is fixedly connected to the right side of the test platform 1, a stop block 3 is fixedly connected to the top end face of the test platform 1, and a mounting bracket 4 is fixedly connected to the end of the test platform 1 away from the triangular block 2. The mounting bracket 4 is fixedly connected to the bearing 6, the inner ring of the bearing 6 is sleeved with the rotating shaft 7, the bearing 6 is fixedly connected to the roller 17, and the outer wall of the bearing 6 is provided with a heat dissipation component, which includes a through hole 9, a heat dissipation sleeve 10, an annular cavity 11, a heat sink 12, a magnetic part 13, a magnet 14, a push plate 15, and a hole groove 16.

[0023] In one embodiment of the present invention, the side wall of the mounting frame 4 is provided with an opening 5, and the opening 5 is set with the rotating shaft 7. Under the rotation of the fan blade 8, the air flow blows toward the bearing 6 through the opening 5, taking away the heat generated by the operation of the bearing 6. The side wall of the rotating shaft 7 is fixedly connected with the fan blade 8. The side wall of the drum 17 is provided with a through hole 9, and the through hole 9 connects the two sides of the drum 17. The air flow sucked into the bearing 6 through the through hole 9 is discharged through the opening 5 on the other side. The outer ring of the bearing 6 is fixedly connected to the heat dissipation sleeve 10. The heat dissipation sleeve 10 An annular cavity 11 is provided inside, and a heat sink 12 is fixedly connected to the outer wall of the heat dissipation sleeve 10. A push plate 15 is provided on the inner wall of the annular cavity 11. The push plate 15 and the magnet 14 and the outer wall of the roller 17 are fixedly connected with a magnetic part 13. The magnetic part 13 is magnetically connected to the magnet 14. The rotation of the roller 17 can drive the magnet 14 and the push plate 15 to move. A hole groove 16 is provided on the side wall of the push plate 15. The hole groove 16 connects the two sides of the push plate 15. The water flow can pass through the hole groove 16, thereby improving the mixing degree of the water flow.

[0024] The electric car is driven onto the test platform 1 through the triangular block 2, so that the front wheel of the electric car is located between the two sets of rollers 17, the block 3 is in contact with the rear wheel, and the vehicle is started. The rotation of the front wheel of the electric car drives the roller 17 and the rotating shaft 7 to rotate, thereby causing the bearing 6 to rub and generate a large amount of heat. The rotation of the rotating shaft 7 drives the fan blade 8 to rotate, and the air flow is sucked in through the opening 5. When the air flow passes through the bearing 6, the heat generated by the operation of the bearing 6 is taken away, and is discharged from the opening 5 on the other side through the through hole 9. When the air flow passes through the heat dissipation sleeve 10, the heat is conducted into the heat dissipation sleeve 10 and absorbed by the coolant arranged in the annular cavity 11, so as to avoid excessive heating of the rotating shaft 7 and the roller 17 due to the air flow carrying heat, resulting in a decrease in the strength of the rotating shaft 7 and the roller 17. The heat is conducted out through the heat sink 12, and the rotation of the roller 17 drives the magnetic part 13 to rotate. The rotation of the magnetic part 13 drives the magnet 14 and the push plate 15 to move in a circular motion, pushing the coolant to move, so that the coolant circulates, thereby improving the effect of absorbing heat.

[0025] In addition, a hole groove 16 is provided on the side wall of the push plate 15, and the hole groove 16 connects the two sides of the push plate 15. Water can flow through the hole groove 16. When the water flows through the hole groove 16, the water will be disturbed, thereby improving the mixing degree of water flows at different temperatures. Faster flow and disturbance help to break the temperature layer, increase the surface area and contact surface of the water flow, thereby enhancing the heat transfer efficiency and improving the heat dissipation effect.

[0026] In the present invention, when in use, the electric car is driven onto the test platform 1 through the triangular block 2, so that the front wheel of the electric car is located between the two sets of rollers 17, the block 3 is in contact with the rear wheel, and the vehicle is started. The rotation of the front wheel of the electric car drives the roller 17 and the rotating shaft 7 to rotate, thereby causing the bearing 6 to rub and generate a large amount of heat. The rotation of the rotating shaft 7 drives the fan blade 8 to rotate, and the air flow is sucked in through the opening 5. When the air flow passes through the bearing 6, the heat generated by the operation of the bearing 6 is taken away, and is discharged from the opening 5 on the other side through the through hole 9. When the air flow passes through the heat dissipation sleeve 10, the heat is The heat is conducted into the heat dissipation sleeve 10 and absorbed by the coolant arranged in the annular cavity 11. The heat is conducted out through the heat sink 12. The rotation of the roller 17 drives the magnetic part 13 to rotate. The rotation of the magnetic part 13 drives the magnet 14 and the push plate 15 to move in a circular motion, pushing the coolant to move, so that the coolant circulates. Furthermore, when the water flows through the hole groove 16, the water will be disturbed, thereby improving the mixing degree of water flows at different temperatures. The faster flow and disturbance help to break the temperature layer, increase the surface area and contact surface of the water flow, thereby enhancing the heat transfer efficiency and improving the heat dissipation effect.

[0027] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An electric vehicle energy consumption test device, comprising a test platform (1), characterized in that: The right side of the test platform (1) is fixedly connected to a triangular block (2), the top end surface of the test platform (1) is fixedly connected to a stopper (3), the end of the test platform (1) away from the triangular block (2) is fixedly connected to a mounting frame (4), the mounting frame (4) is fixedly connected to a bearing (6), the inner ring of the bearing (6) is sleeved with the rotating shaft (7), the bearing (6) is fixedly connected to the roller (17), and the outer wall of the bearing (6) is provided with a heat dissipation component, the heat dissipation component comprising: The fan blade (8) is fixedly connected to the side wall of the rotating shaft (7), and the side wall of the drum (17) is provided with a through hole (9); A heat dissipation sleeve (10), the outer ring of the bearing (6) is fixedly connected to the heat dissipation sleeve (10), an annular cavity (11) is provided in the heat dissipation sleeve (10), a heat sink (12) is fixedly connected to the outer wall of the heat dissipation sleeve (10), a push plate (15) is provided on the inner wall of the annular cavity (11), the push plate (15) and the magnet (14), and the outer wall of the roller (17) is fixedly connected to a magnetic part (13).

2. The electric vehicle energy consumption test device according to claim 1, characterized in that: The side wall of the push plate (15) is provided with a hole groove (16).

3. An electric vehicle energy consumption test device according to claim 2, characterized in that: The hole groove (16) is connected to both sides of the push plate (15).

4. The electric vehicle energy consumption test device according to claim 1, characterized in that: The magnetic member (13) is magnetically connected to the magnet (14).

5. The electric vehicle energy consumption test device according to claim 1, characterized in that: An opening (5) is provided on the side wall of the mounting frame (4), and the opening (5) is sleeved with the rotating shaft (7).

6. The electric vehicle energy consumption test device according to claim 1, characterized in that: The through hole (9) is connected to both sides of the roller (17).

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