CN218343460U

CN218343460U - Speed limiter of electric vehicle

Info

Publication number: CN218343460U
Application number: CN202222979350.XU
Authority: CN
Inventors: 刘孝军; 陈智玮
Original assignee: Jinan Zunkong Electronic Technology Co ltd
Current assignee: Jinan Zunkong Electronic Technology Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-01-20
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses an electric vehicle speed limiter, which comprises a sealing plate, a shell, a rotor, a clamping block, a spring, a flange plate and a mounting hole, wherein the shell is a cylinder with an open end, the sealing plate is arranged at the opening of the shell, the flange plate is arranged at the bottom of the shell, the flange plate is provided with the mounting hole, the rotor is arranged in the shell, the center of the rotor is provided with a shaft hole corresponding to an output shaft, the rotor is in a ratchet shape, the outer ring of the rotor is uniformly provided with a plurality of ratchet teeth, the clamping block is connected with the ratchet teeth through the spring, and the clamping block is arranged between the rotor and the shell; the flange plate is connected with the mounting plate through the mounting hole, and the output shaft penetrates through a shaft hole in the center of the rotor. After the electric motor car was equipped with this overspeed governor, can the automatic braking speed reduction when speed surpassed certain numerical value, the navigating mate also can learn speed after sensing automatic braking and surpass the speed to autonomic brake is with higher speed, has reduced the potential safety hazard of electric motor car.

Description

Speed limiter of electric vehicle

Technical Field

The utility model relates to a transportation equipment technical field especially relates to an electric motor car overspeed governor.

Background

With the rapid development of battery technology in China, the two-wheeled electric vehicle has replaced the position of a bicycle in a family, becomes very popular, and becomes an important tool for people to go out in a green way.

Compared with a motorcycle, the existing two-wheel electric vehicle has low structural strength and limited safety facilities, but is not provided with a speed display device, so that the motorcycle is easy to run at an overspeed. Particularly, when a fast-running automobile is arranged on two sides of a downhill slope, a high-speed object is used as a reference object, and a driver of the two-wheeled electric vehicle cannot usually perceive that the speed is too high.

The structure strength is low, the safety facilities are limited, and the high speed is in conflict, so that the two-wheeled electric vehicle has great potential safety hazards. There is a need to develop a speed limiter capable of limiting the driving speed of an electric vehicle.

Disclosure of Invention

The utility model discloses to prior art's is not enough, develops an electric motor car overspeed governor, is equipped with this electric motor car overspeed governor after, when the speed of two-wheeled electric motor car exceeded certain numerical value, two-wheeled electric motor car can automatic brake slow down, also can learn speed overspeed after navigating mate senses automatic brake to independently brake with higher speed, reduced the potential safety hazard of electric motor car.

The utility model provides a technical problem's technical scheme does: the embodiment of the utility model provides an electric vehicle speed limiter, including the overspeed governor, the overspeed governor is installed on two-wheeled electric motor car, two-wheeled electric motor car includes mounting panel, motor, back wheel, frame, and the mounting panel sets up on the frame, and the mounting panel respectively sets up one in the both sides of back wheel, and the motor is installed on the mounting panel of one side, and the back wheel is installed on the output shaft of motor, the overspeed governor is installed on the mounting panel of opposite side, the overspeed governor includes shrouding, casing, rotor, fixture block, spring, flange board, mounting hole, and the casing is one end open-ended drum, and the shrouding sets up at the opening part of casing, and the flange board sets up in the casing bottom, is provided with the mounting hole on the flange board, and the rotor sets up in the casing, and the rotor center is provided with the shaft hole that corresponds with the output shaft, and the rotor is ratchet shape, and the rotor outer lane evenly is provided with a plurality of ratchet teeth, and the fixture block is through spring coupling ratchet teeth, and the fixture block sets up between rotor and casing; the flange plate is connected with the mounting plate through the mounting hole, and the output shaft penetrates through a shaft hole in the center of the rotor.

Preferably, the motor is a shaft type motor, and the motor is in an inner rotor form. The speed limiter can only be installed on a vehicle with a rotating shaft, but the rotating shaft on the front wheel of the existing electric vehicle does not rotate, a bearing is arranged between the rotating shaft and the front wheel, and the rotating shaft does not rotate and the front wheel rotates.

As optimization, the rear wheel is arranged on an output shaft of the motor, a through hole is formed in the center of the rear wheel, and a key is arranged between the output shaft of the motor and the through hole in the center of the rear wheel; or the through hole at the center of the rear wheel is a spline hole, the output shaft and the connecting part of the rear wheel are in a corresponding spline shape, a bearing is arranged between the output shaft and the mounting plate, and the mounting plate is provided with a bearing mounting hole.

As optimization, six mounting holes are uniformly formed in the flange plate.

As optimization, a key is arranged between the output shaft and the rotor; or the shaft hole at the center of the rotor is a spline hole, and the connecting part of the output shaft and the shaft hole is in a corresponding spline shape.

As optimization, the speed governor is arranged on the right side of a rear wheel, and the tooth tips of the ratchet teeth on the outer ring of the rotor point in a clockwise direction; or the speed limiter is arranged on the left side of the rear wheel, and the tooth tips of the ratchet teeth on the outer ring of the rotor point in the anticlockwise direction.

The effects provided in the contents of the present invention are only the effects of the embodiments, not all the effects of the present invention, and the above technical solution has the following advantages or advantageous effects: after the electric motor car was equipped with this overspeed governor, can the automatic braking speed reduction when speed surpassed certain numerical value, the navigating mate also can learn speed after sensing automatic braking and surpass the speed to autonomic brake is with higher speed, has reduced the potential safety hazard of electric motor car.

Drawings

Fig. 1 is a front view of a usage state of the present invention.

Fig. 2 is a left side view of a usage state of the present invention.

Fig. 3 is a front view of an embodiment of the present invention.

Fig. 4 is a left side view of an embodiment of the present invention.

Fig. 5 is a left side view of the sealing plate according to the present invention.

Fig. 6 is an enlarged partial sectional view of the area B in fig. 1.

Detailed Description

In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention. The terms "central," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used merely to facilitate describing the invention and to simplify the description, and do not indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. The terms "mounted," "connected," and "connected" are to be construed broadly and may be fixed or removable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Fig. 1 to 6 are the utility model discloses an embodiment, as shown in fig. 1, fig. 2, an electric vehicle speed limiter, including speed limiter 1, speed limiter 1 installs on two wheeled electric motor cars, two wheeled electric motor cars include mounting panel 2, motor 3, rear wheel 4, frame 6, and mounting panel 2 sets up on frame 6, and mounting panel 2 respectively sets up one in the both sides of rear wheel 4, and motor 3 installs on the mounting panel 2 of one side, and rear wheel 4 installs on the output shaft 5 of motor 3, speed limiter 1 installs on the mounting panel 2 of opposite side.

As shown in fig. 3 to 5, the speed governor 1 includes a sealing plate 11, a housing 12, a rotor 13, a fixture block 14, a spring 15, a flange plate 16, and a mounting hole 17, the housing 12 is a cylinder with an open end, the sealing plate 11 is disposed at the opening of the housing 12, the flange plate 16 is disposed at the bottom of the housing 12, the flange plate 16 is provided with the mounting hole 17, the rotor 13 is disposed in the housing 12, a shaft hole corresponding to the output shaft 5 is disposed at the center of the rotor 13, the rotor 13 is in a ratchet shape, a plurality of ratchet teeth are uniformly disposed on the outer ring of the rotor 13, the fixture block 14 is connected with the ratchet teeth through the spring 15, and the fixture block 14 is disposed between the rotor 13 and the housing 12; the flange plate 16 is connected with the mounting plate 2 through a mounting hole 17, and the output shaft 5 passes through a shaft hole in the center of the rotor 13.

The motor 3 is a shaft type motor, and the motor 3 adopts an inner rotor form. The rear wheel 4 is arranged on an output shaft 5 of the motor 3, a through hole is formed in the center of the rear wheel 4, and a key is arranged between the output shaft 5 of the motor 3 and the through hole in the center of the rear wheel 4; or the through hole at the center of the rear wheel 4 is a spline hole, and the connecting part of the output shaft 5 and the rear wheel 4 is in a corresponding spline shape.

As shown in fig. 6, a bearing is provided between the output shaft 5 and the mounting plate 2, and a bearing mounting hole is provided in the mounting plate 2. Six mounting holes 17 are uniformly formed in the flange plate 16. A key is provided between the output shaft 5 and the rotor 13.

As shown in fig. 5, the speed governor 1 is provided on the right side of the rear wheel 4, and the tooth tips of the ratchet teeth on the outer ring of the rotor 13 point in the clockwise direction.

The speed limiter can only be installed on a vehicle with a rotating shaft, the rotating shaft on the front wheel of the existing electric vehicle is not rotated, a bearing is arranged between the rotating shaft and the front wheel, and the rotating shaft is not rotated and the front wheel rotates. The speed limiter is only suitable for the electric vehicle which adopts a shaft type motor in an inner rotor mode and has a motor output shaft directly connected with a rear wheel 4, and the rear wheel 4 rotates along with an output shaft 5.

When the two-wheeled electric vehicle moves forward, the rotor 13 rotates, and the latch 14 is subjected to centrifugal force to stretch the spring 15. The maximum speed of the two-wheeled electric vehicle is limited, the maximum rotating speed of the corresponding output shaft 5 is A, and the tension and the length of the spring 15 are selected, so that when the rotor 13 reaches the maximum rotating speed A, the centrifugal force applied to the fixture block 14 can just throw the fixture block 14 to the extent that the fixture block 14 is in contact with the rotor 13 and the shell 12 at the same time, and the rotor 13 is clamped to be dead, and the speed limit is realized. When the electric motor car backs a car or low-speed traveles, spring 15 pulling fixture block 14, fixture block 14 only can not influence the rotation of rear wheel 4 with rotor 13 contact, and after the electric motor car was equipped with this overspeed governor, can automatic braking when speed exceeded certain numerical value slow down, also can learn speed overspeed after navigating mate senses automatic braking to autonomic brake is with higher speed, has reduced the potential safety hazard of electric motor car.

Although the above description has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and on the basis of the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative efforts are still within the scope of the present invention.

Claims

1. The utility model provides an electric motor car overspeed governor, includes overspeed governor (1), install on two-wheeled electric motor car overspeed governor (1), two-wheeled electric motor car includes mounting panel (2), motor (3), rear wheel (4), frame (6), and mounting panel (2) set up on frame (6), and mounting panel (2) respectively set up one in the both sides of rear wheel (4), and install on mounting panel (2) of one side motor (3), and install on output shaft (5) of motor (3) rear wheel (4), characterized by: the speed governor (1) is mounted on a mounting plate (2) on the other side, the speed governor (1) comprises a sealing plate (11), a shell (12), a rotor (13), a clamping block (14), a spring (15), a flange plate (16) and mounting holes (17), the shell (12) is a cylinder with one open end, the sealing plate (11) is arranged at the opening of the shell (12), the flange plate (16) is arranged at the bottom of the shell (12), the mounting holes (17) are formed in the flange plate (16), the rotor (13) is arranged in the shell (12), a shaft hole corresponding to an output shaft (5) is formed in the center of the rotor (13), the rotor (13) is in a ratchet shape, a plurality of ratchet teeth are uniformly arranged on the outer ring of the rotor (13), the clamping block (14) is connected with the ratchet teeth through the spring (15), and the clamping block (14) is arranged between the rotor (13) and the shell (12); the flange plate (16) is connected with the mounting plate (2) through a mounting hole (17), and the output shaft (5) penetrates through a shaft hole in the center of the rotor (13).

2. A speed limiter for electric vehicles in accordance with claim 1, characterised in that the motor (3) is of the shaft type and that the motor (3) takes the form of an internal rotor.

3. The speed limiter of the electric vehicle as claimed in claim 2, wherein the rear wheel (4) is mounted on the output shaft (5) of the motor (3), a through hole is formed in the center of the rear wheel (4), and a key is arranged between the output shaft (5) of the motor (3) and the through hole in the center of the rear wheel (4); or the through hole at the center of the rear wheel (4) is a spline hole, the connecting part of the output shaft (5) and the rear wheel (4) is in a corresponding spline shape, a bearing is arranged between the output shaft (5) and the mounting plate (2), and the mounting plate (2) is provided with a bearing mounting hole.

4. A speed limiter for electric vehicles according to claim 1, characterized in that six mounting holes (17) are uniformly arranged on the flange plate (16).

5. A speed limiter for electric vehicles according to claim 1 wherein a key is provided between the output shaft (5) and the rotor (13); or the shaft hole at the center of the rotor (13) is a spline hole, and the connecting part of the output shaft (5) and the shaft hole is in a corresponding spline shape.

6. An electric vehicle speed limiter according to claim 1, wherein the speed limiter (1) is arranged on the right side of a rear wheel (4), and the tooth tips of ratchet teeth on the outer ring of a rotor (13) point to the clockwise direction; or the speed governor (1) is arranged on the left side of the rear wheel (4), and the tooth tips of the ratchet teeth on the outer ring of the rotor (13) point to the counterclockwise direction.