Electric automobile hub motor grounding device

Abstract

The utility model relates to the technical field of hub motors, in particular to a grounding device for a hub motor of an electric automobile. According to the technical scheme, the device comprises a fixed cylinder and four supporting plates fixedly installed on the front side and the rear side of the fixed cylinder, a grounding assembly and a dismounting assembly are arranged on the fixed cylinder, the grounding assembly comprises a movable rod movably installed on the inner side of the fixed cylinder, the two ends of the movable rod extend out of the two ends of the fixed cylinder respectively, and a supporting wheel is rotationally installed at one end of the movable rod; a movable plate is movably mounted at the bottom of the movable rod, and two fixed rods are fixedly mounted on the inner side of the movable plate. According to the hub motor grounding device, the supporting plate, the movable frame, the movable rod, the supporting wheel and the fixed rod are matched with one another, so that the fixed cylinder can be conveniently mounted and dismounted, the hub motor grounding device is convenient to maintain, the hub motor can be conveniently grounded, the supporting wheel can be always in contact with the hub motor, and the hub motor grounding operation is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub motors, in particular to a grounding device for a wheel hub motor of an electric vehicle. Background Art

[0002] The hub motor technology is also known as the in-wheel motor technology. Its biggest feature is that the power unit, transmission unit and braking unit are integrated into the wheel hub, which greatly simplifies the mechanical part of the electric vehicle. The hub motor is driven by electric energy to rotate the wheel hub. It is prone to leakage during use, and the electric vehicle hub motor grounding device needs to be used.

[0003] In the prior art, there are the following problems:

[0004] Conventional grounding devices are installed in the wheel hub motor, which is troublesome to install and disassemble, and inconvenient for maintenance operations. At the same time, traditional grounding devices are directly fixed on the wheel hub motor, which causes the grounding device to separate from the wheel hub motor when the wheel hub motor is vibrated, which easily affects the grounding conductive effect. Utility Model Content

[0005] The purpose of the utility model is to provide a grounding device for a hub motor of an electric vehicle to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grounding device for an electric vehicle hub motor, comprising a fixed cylinder and four support plates fixedly installed on the front and rear sides of the fixed cylinder, the fixed cylinder being provided with a grounding assembly and a disassembly assembly, the grounding assembly comprising a movable rod movably installed on the inner side of the fixed cylinder, the two ends of the movable rod respectively extending out of the two ends of the fixed cylinder, one end of the movable rod being rotatably installed with a support wheel, a movable plate movably installed on the bottom of the movable rod, two fixed rods fixedly installed on the inner side of the movable plate, two support frames fixedly installed on the top of the fixed cylinder, the disassembly assembly comprising two movable frames movably connected to the four support plates, a movable frame movably installed on the top of every two of the support plates, and a fixing bolt movably connected between each of the support plates and the movable frame.

[0007] By placing the fixing cylinder at the bottom of the transverse bottom beam of the electric vehicle, the support frame is in contact with the transverse bottom beam of the electric vehicle, and the support wheel is in contact with the wheel hub motor synchronously; by clamping the movable frame on the outside of the transverse bottom beam of the electric vehicle and fixing the movable frame and the support plate with a fixing bolt, the fixing cylinder can be installed and fixed at the bottom of the transverse bottom beam of the electric vehicle, which can be convenient for installation and removal of the fixing cylinder and maintenance; by the support wheel contacting the wheel hub motor, when the wheel hub motor leaks electricity, the support wheel and the movable rod transfer the current to the fixed rod; by using the fixed rod to contact the ground to transfer the current to the ground, the wheel hub motor can be conveniently grounded and conductively operated; by pushing the movable rod to move to the right, the support wheel can always be in contact with the wheel hub motor to avoid affecting the grounding operation of the wheel hub motor; the current generated by the car during driving can be conducted through the support frame, and then the current is transferred to the fixed rod and guided to the ground, and the electric vehicle is grounded synchronously; the fixed rod can be supported and protected by the movable plate, so that the fixed rod can be in contact with the ground, and at the same time, the fixed rod can be prevented from being entangled and knotted.

[0008] Preferably, a group of support blocks are fixedly installed between each support plate and the fixing tube, and each group of support blocks is located at the bottom of a support plate. The support blocks can improve the support strength of the support plate and prevent the support plate from breaking or falling off.

[0009] Preferably, a fixing plate is fixedly mounted on the front and rear sides of each movable frame, a fixing hole is opened on the inner side of each fixing plate, and each fixing hole corresponds to a fixing bolt. The fixing plates can be fixed to each other by passing the fixing bolt through the fixing hole and the support plate.

[0010] Preferably, a metal rod is fixedly installed between the two support frames, one of the support frames is fixedly connected to a fixed rod with a wire, one end of the other fixed rod is fixedly installed to the movable rod, and the movable plate and the fixed rod have good elasticity. The metal rod can make the two support frames mutually conductive, so that the current can be easily transferred to the fixed rod through the wire.

[0011] Preferably, the movable plate and the movable rod are movably mounted via two axle seats, and the support wheel and the movable rod are rotatably mounted via an axle frame. The movable plate can be flipped via the axle seat, and the support wheel can be rotated via the axle frame, so that the support wheel can be rolled along the rotation of the wheel hub motor.

[0012] Preferably, a fixing frame is fixedly installed on the outer side of the movable rod, the fixing frame is located inside the fixing tube, a thrust spring is fixedly installed between one side of the fixing frame and the fixing tube, and the thrust spring is located outside the movable rod. The fixing frame can facilitate the thrust spring to push the movable rod to move rightward.

[0013] The present invention provides a grounding device for a wheel hub motor of an electric vehicle. Compared with the prior art, the device has the following beneficial effects: by providing a support plate, a movable frame, a movable rod, a support wheel and a fixed rod, by placing a fixed cylinder at the bottom of a transverse bottom beam of the electric vehicle, the support wheel is in contact with the wheel hub motor, by clamping the movable frame on the outside of the transverse bottom beam of the electric vehicle, the movable frame and the support plate are aligned and fixed, the fixed cylinder can be installed and fixed at the bottom of the transverse bottom beam of the electric vehicle, and the fixed cylinder can be conveniently installed and disassembled, and maintenance can be conveniently performed, the support wheel is in contact with the wheel hub motor, when the wheel hub motor leaks electricity, the support wheel and the movable rod transfer current to the fixed rod, and the fixed rod is in contact with the ground to transfer current to the ground, so that the wheel hub motor can be conveniently grounded, and the active force of the thrust spring is used to drive the movable rod to move rightward, so that the support wheel can always be in contact with the wheel hub motor to avoid affecting the grounding operation of the wheel hub motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the cutaway structure of the fixed cylinder of the utility model;

[0016] Figure 3 It is a schematic diagram of the cutaway structure of the movable rod of the utility model.

[0017] In the figure: 1. fixing cylinder; 2. supporting block; 3. supporting plate; 4. fixing bolt; 5. movable frame; 6. fixing plate; 7. fixing hole; 8. supporting frame; 9. metal rod; 10. movable rod; 11. axle frame; 12. supporting wheel; 13. axle seat; 14. movable plate; 15. fixing rod; 16. wire; 17. fixing frame; 18. thrust spring. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] The utility model provides Figure 1-3The electric vehicle wheel hub motor grounding device shown comprises a fixed cylinder 1 and four support plates 3 fixedly mounted on the front and rear sides of the fixed cylinder 1. The fixed cylinder 1 is provided with a grounding component and a disassembly component. The grounding component comprises a movable rod 10 movably mounted on the inner side of the fixed cylinder 1. The two ends of the movable rod 10 extend out of the two ends of the fixed cylinder 1 respectively. A support wheel 12 is rotatably mounted on one end of the movable rod 10. A movable plate 14 is movably mounted on the bottom of the movable rod 10. Two fixed rods 15 are fixedly mounted on the inner side of the movable plate 14. Two support frames 8 are fixedly mounted on the top of the fixed cylinder 1. The disassembly component comprises two movable frames 5 movably connected to the four support plates 3. A movable frame 5 is movably mounted on the top of every two support plates 3. A fixing bolt 4 is movably connected between each support plate 3 and the movable frame 5.

[0020] A group of support blocks 2 is fixedly installed between each support plate 3 and the fixed cylinder 1, and each group of support blocks 2 is located at the bottom of a support plate 3;

[0021] A fixing plate 6 is fixedly mounted on the front and rear sides of each movable frame 5. A fixing hole 7 is formed on the inner side of each fixing plate 6. Each fixing hole 7 corresponds to a fixing bolt 4.

[0022] A metal rod 9 is fixedly installed between two support frames 8, one support frame 8 is fixedly connected to a fixed rod 15 with a wire 16, one end of the other fixed rod 15 is fixedly installed to the movable rod 10, and the movable plate 14 and the fixed rod 15 have good elasticity;

[0023] The movable plate 14 and the movable rod 10 are movably mounted via two shaft seats 13, and the support wheel 12 and the movable rod 10 are rotatably mounted via a shaft frame 11;

[0024] A fixing frame 17 is fixedly installed on the outer side of the movable rod 10 . The fixing frame 17 is located inside the fixing tube 1 . A thrust spring 18 is fixedly installed between one side of the fixing frame 17 and the fixing tube 1 . The thrust spring 18 is located on the outer side of the movable rod 10 .

[0025] The working principle of the electric vehicle hub motor grounding device based on the embodiment is: by placing the fixing cylinder 1 at the bottom of the electric vehicle transverse bottom beam, the support frame 8 is in contact with the electric vehicle transverse bottom beam, and the support wheel 12 is in contact with the hub motor synchronously, by clamping the movable frame 5 on the outside of the electric vehicle transverse bottom beam, the fixing plate 6 is aligned with the support plate 3, and by passing the fixing bolt 4 through the fixing hole 7 and the support plate 3, the movable frame 5 and the support plate 3 can be fixed, and the fixing cylinder 1 can be installed and fixed at the bottom of the electric vehicle transverse bottom beam, so that the fixing cylinder 1 can be easily installed and disassembled, and it is convenient for maintenance;

[0026] The support wheel 12 can be rotated by the shaft frame 11, so that the support wheel 12 can roll along with the rotation of the wheel hub motor. The support wheel 12 is in contact with the wheel hub motor. When the wheel hub motor leaks electricity, the support wheel 12 and the movable rod 10 transfer the current to the fixed rod 15. The fixed rod 15 is in contact with the ground to transfer the current to the ground, so that the wheel hub motor can be conveniently grounded and conductively operated.

[0027] The force of the thrust spring 18 is used to push the fixing frame 17 to move to the right, and the movable rod 10 is simultaneously driven to move to the right, so that the support wheel 12 is always in contact with the hub motor to avoid affecting the grounding operation of the hub motor. The current generated by the car during driving can be conducted through the support frame 8, and the current is transferred to the fixing rod 15 and guided to the ground by the wire 16, and the electric car is grounded simultaneously. The fixing rod 15 can be supported and protected by the movable plate 14, so that the fixing rod 15 can be in contact with the ground, and at the same time, the fixing rod 15 can be prevented from being entangled and knotted.

[0028] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A grounding device for a wheel hub motor of an electric vehicle, comprising a fixing cylinder (1) and four supporting plates (3) fixedly mounted on the front and rear sides of the fixing cylinder (1), characterized in that: The fixing cylinder (1) is provided with a grounding component and a disassembly component; The grounding assembly comprises a movable rod (10) movably mounted on the inner side of the fixed cylinder (1), the two ends of the movable rod (10) respectively extending out of the two ends of the fixed cylinder (1), one end of the movable rod (10) is rotatably mounted with a support wheel (12), a movable plate (14) is movably mounted on the bottom of the movable rod (10), two fixed rods (15) are fixedly mounted on the inner side of the movable plate (14), and two support frames (8) are fixedly mounted on the top of the fixed cylinder (1); The disassembly and assembly component comprises two movable frames (5) movably connected to four support plates (3), a movable frame (5) is movably mounted on the top of every two support plates (3), and a fixing bolt (4) is movably connected between each support plate (3) and the movable frame (5).

2. The electric vehicle hub motor grounding device according to claim 1, characterized in that: A group of support blocks (2) is fixedly installed between each support plate (3) and the fixed cylinder (1), and each group of support blocks (2) is located at the bottom of a support plate (3).

3. The electric vehicle hub motor grounding device according to claim 1, characterized in that: A fixing plate (6) is fixedly mounted on the front and rear sides of each movable frame (5), a fixing hole (7) is opened on the inner side of each fixing plate (6), and each fixing hole (7) corresponds to a fixing bolt (4).

4. The electric vehicle hub motor grounding device according to claim 1, characterized in that: A metal rod (9) is fixedly installed between the two support frames (8), one of the support frames (8) and a fixed rod (15) are fixedly connected with a wire (16), one end of the other fixed rod (15) is fixedly installed with a movable rod (10), and the movable plate (14) and the fixed rod (15) are elastic.

5. The electric vehicle hub motor grounding device according to claim 1, characterized in that: The movable plate (14) and the movable rod (10) are movably mounted via two shaft seats (13), and the support wheel (12) and the movable rod (10) are rotatably mounted via a shaft frame (11).

6. The electric vehicle hub motor grounding device according to claim 1, characterized in that: A fixing frame (17) is fixedly mounted on the outer side of the movable rod (10), the fixing frame (17) is located inside the fixing cylinder (1), a thrust spring (18) is fixedly mounted between one side of the fixing frame (17) and the fixing cylinder (1), and the thrust spring (18) is located on the outer side of the movable rod (10).

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