Insulated transmission shaft of electric vehicle

Abstract

The utility model discloses an insulating transmission shaft of an electric vehicle, which relates to the technical field of transmission shafts of electric vehicles and comprises an insulating tube. The novel insulating composite material axle tube comprises an insulating tube, and further comprises a first universal joint arranged at one end of the insulating tube, a second universal joint is arranged at the other end of the insulating tube, the insulating tube is manufactured by matching high-strength glass fiber filaments with epoxy resin, a curing agent and an accelerant according to the proportion of 100: 98: 3 through a dipping wet winding process, and the novel insulating composite material axle tube is formed to replace a traditional steel tube. Therefore, the purposes of high insulativity, high strength and high-voltage transmission are achieved.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle drive shaft technology, specifically to an insulated drive shaft for electric vehicles. Background Technology

[0002] The driveshaft of an electric vehicle is the main component that transmits the power generated by the electric vehicle motor to the wheels. The driveshaft is usually located in the central part of the vehicle chassis, connecting the motor and the wheels. Its main function is to transmit torque and rotational force, thereby driving the wheels to move and enabling the vehicle to move forward or backward. The axle tube is the main component of the driveshaft and is generally made of seamless steel pipe or seamless steel pipe processing.

[0003] Traditional driveshafts are made of welded and assembled steel materials, which cannot achieve electrical insulation. With the development of new energy and the electric revolution, new requirements have been put forward for drive chains, such as electrical insulation, lighter weight, and intelligence. Existing technologies use conductive slip rings to discharge harmful shaft currents or insulating gaskets to block them. However, conductive slip rings are prone to the accumulation of conductive powder, which is unsafe and has a short lifespan. Insulating gaskets have limited insulation strength and are not suitable for high-voltage and high-capacity electric vehicles. Therefore, we have proposed an insulated driveshaft for electric vehicles to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide an insulated drive shaft for electric vehicles, in order to solve the problems mentioned in the background art, that traditional drive shafts are made of steel materials by welding and assembly, which cannot achieve electrical insulation, and that existing technologies use conductive slip rings to discharge harmful shaft currents or insulating gaskets to block them. However, conductive slip rings are prone to the accumulation of conductive powder, which is unsafe and has a short lifespan, and insulating gaskets have limited insulation strength and are not suitable for high-voltage, high-capacity electric vehicles.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an insulated drive shaft for electric vehicles, including an insulating tube;

[0006] Also includes:

[0007] The first universal joint is located at one end of the insulating tube, and the other end of the insulating tube is provided with a second universal joint. The insulating tube is made of high-strength glass fiber combined with epoxy resin, curing agent and accelerator in a ratio of 100:98:3 by a wet winding process.

[0008] Preferably, a fifth flange is provided at one end of the first universal joint, and a sleeve is installed at the other end of the first universal joint. The inner wall of the sleeve is provided with teeth, and a telescopic rod is movably engaged at the other end of the sleeve. The surface of the telescopic rod is provided with teeth, and the telescopic rod and the sleeve are engaged.

[0009] Preferably, the other end of the telescopic rod is provided with a third flange, the other end of the third flange is connected to a first flange, and the first flange and the third flange are connected by bolts. The other end of the first flange is provided with a first round rod, and the surface of the first round rod is provided with a plurality of evenly distributed first grooves.

[0010] Preferably, the second universal joint is provided with fourth flanges symmetrically at both ends, and the other end of the insulating tube is provided with a second round rod. The surface of the second round rod is provided with a second groove, and the other end of the second round rod is provided with a second flange. The second flange and the fourth flange are connected and fixed by bolts.

[0011] Preferably, the inner wall of one end of the insulating tube is provided with a first conical hole, the surface of the first round rod is conical, and the first round rod engages with the first conical hole; the inner wall of the other end of the insulating tube is provided with a second conical hole, the surface of the second round rod is conical, and the second round rod engages with the second conical hole.

[0012] Preferably, the inner wall of one end of the insulating tube is provided with a first groove, the surface of the first round rod is provided with a first convex groove, and the first groove and the first convex groove are slidably engaged; the inner wall of the other end of the insulating tube is provided with a second groove, the surface of the second round rod is provided with a second convex groove, and the second groove and the second convex groove are slidably engaged.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This application creates a novel insulating composite material shaft tube by using high-strength glass fiber combined with epoxy resin, curing agent, and accelerator in a 100:98:3 ratio through a wet winding process. This replaces the traditional steel pipe, achieving high insulation, high strength, and meeting the requirements of high-voltage transmission. It is suitable for high-voltage, high-capacity electric transmission, improves electric transmission efficiency, meets societal demands for fast charging and discharging, large capacity, and long-range electric vehicles, improves energy efficiency, reduces energy consumption, promotes the use of clean energy, and contributes to carbon reduction. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the first universal joint and insulating tube structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the second universal joint and insulating tube structure of this utility model;

[0018] Figure 4 This is a schematic diagram of Embodiment 2 of the present invention;

[0019] Figure 5 This is a schematic diagram of Embodiment 2 of the present invention;

[0020] Figure 6 This is a schematic diagram of Embodiment 3 of the present invention;

[0021] Figure 7 This is a schematic diagram of Embodiment 3 of the present invention;

[0022] In the diagram: 1. Insulating tube; 2. First universal joint; 3. First flange; 4. First round rod; 5. First groove; 6. Second groove; 7. Second round rod; 8. Second flange; 9. Third flange; 10. Fourth flange; 11. Second universal joint; 12. Fifth flange; 13. Telescopic rod; 14. Sleeve; 15. First conical hole; 16. Second conical hole; 17. First protrusion; 18. First groove; 19. Second groove; 20. Second protrusion. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1: An insulated drive shaft for an electric vehicle, including an insulating tube 1;

[0025] Also includes:

[0026] Please see Figure 1 The first universal joint 2 is located at one end of the insulating tube 1, and the other end of the insulating tube 1 is provided with the second universal joint 11. The insulating tube 1 is made of high-strength glass fiber combined with epoxy resin, curing agent and accelerator in a ratio of 100:98:3 by impregnation wet winding process.

[0027] The insulating tube 1 is made by using high-strength glass fiber combined with epoxy resin, curing agent and accelerator in a ratio of 100:98:3 through a wet winding process to form a new type of insulating composite material shaft tube to replace the traditional steel pipe, thereby achieving high insulation, high strength and meeting the purpose of high voltage transmission.

[0028] Please see Figure 2 The first universal joint 2 is provided with a fifth flange 12 at one end and a sleeve 14 is installed at the other end of the first universal joint 2. The inner wall of the sleeve 14 is distributed with teeth. The other end of the sleeve 14 is movably engaged with a telescopic rod 13. The surface of the telescopic rod 13 is distributed with teeth, and the telescopic rod 13 and the sleeve 14 are engaged. The telescopic structure can automatically adjust the change in distance between the transmission and the drive axle.

[0029] Please see Figure 2 The other end of the telescopic rod 13 is provided with a third flange 9, and the other end of the third flange 9 is connected to a first flange 3. The first flange 3 and the third flange 9 are connected by bolts. The other end of the first flange 3 is provided with a first round rod 4. The surface of the first round rod 4 is provided with several evenly distributed first grooves 5, so that the telescopic rod 13 is connected and fixed to one end of the insulating tube 1.

[0030] Please see Figure 3 The second universal joint 11 has a fourth flange 10 symmetrically arranged at both ends, and the other end of the insulating tube 1 is provided with a second round rod 7, and the surface of the second round rod 7 is provided with a second groove 6.

[0031] Example 2: An insulated drive shaft for an electric vehicle, including an insulating tube 1;

[0032] Also includes:

[0033] The first universal joint 2 is located at one end of the insulating tube 1, and the other end of the insulating tube 1 is provided with the second universal joint 11. The insulating tube 1 is made of high-strength glass fiber combined with epoxy resin, curing agent and accelerator in a ratio of 100:98:3 by impregnation wet winding process.

[0034] The insulating tube 1 is made by using high-strength glass fiber combined with epoxy resin, curing agent and accelerator in a ratio of 100:98:3 through a wet winding process to form a new type of insulating composite material shaft tube to replace the traditional steel pipe, thereby achieving high insulation, high strength and meeting the purpose of high voltage transmission.

[0035] Please see Figure 2 The first universal joint 2 is provided with a fifth flange 12 at one end and a sleeve 14 is installed at the other end of the first universal joint 2. The inner wall of the sleeve 14 is distributed with teeth. The other end of the sleeve 14 is movably engaged with a telescopic rod 13. The surface of the telescopic rod 13 is distributed with teeth, and the telescopic rod 13 and the sleeve 14 are engaged. The telescopic structure can automatically adjust the change in distance between the transmission and the drive axle.

[0036] Please see Figure 4 The other end of the telescopic rod 13 is provided with a third flange 9, and the other end of the third flange 9 is connected to a first flange 3. The first flange 3 and the third flange 9 are connected by bolts. The other end of the first flange 3 is provided with a first round rod 4, and the surface of the first round rod 4 is tapered. The inner wall of one end of the insulating tube 1 is provided with a first tapered hole 15, and the first round rod 4 is engaged with the first tapered hole 15.

[0037] Please see Figure 5The second universal joint 11 has a fourth flange 10 symmetrically arranged at both ends. The inner wall of the other end of the insulating tube 1 is provided with a second conical hole 16. The surface of the second round rod 7 is conical, and the second round rod 7 engages with the second conical hole 16.

[0038] Example 3: An insulated drive shaft for an electric vehicle, including an insulating tube 1;

[0039] Also includes:

[0040] The first universal joint 2 is located at one end of the insulating tube 1, and the other end of the insulating tube 1 is provided with the second universal joint 11. The insulating tube 1 is made of high-strength glass fiber combined with epoxy resin, curing agent and accelerator in a ratio of 100:98:3 by impregnation wet winding process.

[0041] The insulating tube 1 is made by using high-strength glass fiber combined with epoxy resin, curing agent and accelerator in a ratio of 100:98:3 through a wet winding process to form a new type of insulating composite material shaft tube to replace the traditional steel pipe, thereby achieving high insulation, high strength and meeting the purpose of high voltage transmission.

[0042] Please see Figure 2 The first universal joint 2 is provided with a fifth flange 12 at one end and a sleeve 14 is installed at the other end of the first universal joint 2. The inner wall of the sleeve 14 is distributed with teeth. The other end of the sleeve 14 is movably engaged with a telescopic rod 13. The surface of the telescopic rod 13 is distributed with teeth, and the telescopic rod 13 and the sleeve 14 are engaged. The telescopic structure can automatically adjust the change in distance between the transmission and the drive axle.

[0043] Please see Figure 6 The other end of the telescopic rod 13 is provided with a third flange 9, and the other end of the third flange 9 is connected to a first flange 3. The first flange 3 and the third flange 9 are connected by bolts. The other end of the first flange 3 is provided with a first round rod 4. The inner wall of one end of the insulating tube 1 is provided with a first groove 18, and the surface of the first round rod 4 is provided with a first protrusion 17. The first groove 18 and the first protrusion 17 are slidably engaged.

[0044] Please see Figure 7 The second universal joint 11 has a fourth flange 10 symmetrically arranged at both ends. The inner wall of the other end of the insulating tube 1 has a second groove 19 distributed therein. The surface of the second round rod 7 has a second protrusion 20 distributed therein, and the second groove 19 and the second protrusion 20 are slidably engaged.

[0045] Working principle: The insulating tube 1 is made of high-strength glass fiber combined with epoxy resin, curing agent and accelerator in a ratio of 100:98:3 through a wet winding process to form a new type of insulating composite material shaft tube to replace the traditional steel pipe. This achieves high insulation, high strength and meets the requirements of high voltage transmission. It is suitable for high voltage and large capacity electric transmission, improves electric transmission efficiency, meets the social requirements for fast charging and discharging, large capacity and long-range electric vehicles, improves the efficiency of power use, reduces energy consumption, promotes the use of clean energy and helps reduce carbon emissions.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electric vehicle insulated drive shaft, comprising an insulated pipe (1); characterized in that Further comprising: A first universal joint (2) is arranged at one end of the insulated pipe (1), the other end of the insulated pipe (1) is provided with a second universal joint (11); one end of the first universal joint (2) is provided with a fifth flange (12), the other end of the first universal joint (2) is provided with a sleeve (14), and the inner wall of the sleeve (14) is distributed with teeth, the other end of the sleeve (14) is movably clamped with a telescopic rod (13), the surface of the telescopic rod (13) is distributed with teeth, and the telescopic rod (13) and the sleeve (14) are clamped and connected.

2. The electric vehicle insulated drive shaft of claim 1, wherein: The other end of the telescopic rod (13) is provided with a third flange (9), the other end of the third flange (9) is connected with a first flange (3), and the first flange (3) and the third flange (9) are connected by bolts, the other end of the first flange (3) is provided with a first round rod (4), and the surface of the first round rod (4) is provided with a plurality of uniformly distributed first grooves (5).

3. The electric vehicle insulated drive shaft of claim 2, wherein: The two ends of the second universal joint (11) are symmetrically provided with a fourth flange (10), the other end of the insulated pipe (1) is provided with a second round rod (7), the surface of the second round rod (7) is provided with a second groove (6), the other end of the second round rod (7) is provided with a second flange (8), and the second flange (8) and the fourth flange (10) are connected and fixed by bolts.

4. The electric vehicle insulated drive shaft of claim 3, wherein: The inner wall of one end of the insulated pipe (1) is provided with a first tapered hole (15), the surface of the first round rod (4) is tapered, and the first round rod (4) is clamped with the first tapered hole (15), the inner wall of the other end of the insulated pipe (1) is provided with a second tapered hole (16), the surface of the second round rod (7) is tapered, and the second round rod (7) is clamped with the second tapered hole (16).

5. The electric vehicle insulated drive shaft of claim 4, wherein: The inner wall of one end of the insulated pipe (1) is distributed with a first recess (18), the surface of the first round rod (4) is distributed with a first convex groove (17), and the first recess (18) and the first convex groove (17) are slidably clamped, the inner wall of the other end of the insulated pipe (1) is distributed with a second recess (19), the surface of the second round rod (7) is distributed with a second convex groove (20), and the second recess (19) and the second convex groove (20) are slidably clamped and connected.

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