CN107826195B

CN107826195B - Novel balance car of easily mastering

Info

Publication number: CN107826195B
Application number: CN201711292528.0A
Authority: CN
Inventors: 张殿旋; 周邓金; 张洋; 周甫齐; 曾辉海
Original assignee: Shenzhen Chitado Technology Co Ltd
Current assignee: Shenzhen Chitado Technology Co Ltd
Priority date: 2017-12-08
Filing date: 2017-12-08
Publication date: 2020-08-11
Anticipated expiration: 2037-12-08
Also published as: CN107826195A

Abstract

The invention provides a novel balance car easy to master, which comprises a wheel set, a shell and pedals arranged on two sides of the wheel set, wherein a battery box is sleeved on a motor shaft of the wheel set, and a fixing piece which penetrates through a stator and is fixed is arranged at one end of the battery box; and a telescopic elastic block is arranged in the pedal. The novel balance car has attractive and unique appearance, fully considers the problem of difficulty in getting on the car, and has stable car body and easy mastering during getting on the car. The internal battery pack and the main control board are fixed firmly, and the safety is high. The foldable treading part can be unlocked by pressing the pedal, and the operation is convenient and quick. The novice also gets on the car in a short time and rides, obtains the enjoyment of riding.

Description

Novel balance car of easily mastering

Technical Field

The invention belongs to the field of balance cars, and particularly relates to a novel balance car easy to master.

Background

The electric balance vehicle is also called a body sensing vehicle, a thinking vehicle and the like, and mainly comprises a single wheel and two wheels on the market. The operating principle is mainly established on the basic principle called dynamic stability, a gyroscope and an acceleration sensor in the vehicle body are used for detecting the change of the vehicle body posture, and a servo control system is used for accurately driving a motor to perform corresponding adjustment so as to keep the balance of the system.

The wheelbarrow generally includes a wheel located in the middle, a housing covering the wheel, and left and right pedals located on both sides of the wheel. Because the monocycle is difficult to keep balance, a beginner can difficultly learn to ride, and a lot of people interested in the monocycle can be dissuaded. In order to further meet the requirement of miniaturization of the balance vehicle and improve the stability, the double-tire small wheel balance vehicle with a single wheel hub and double tires is produced. Namely, two tires are arranged on the same hub, and the single-wheel balance vehicle has higher stability than a common single-wheel vehicle on the basis of miniaturization and portability and is easier to master. No matter be traditional wheel barrow or two child steamboat balance cars, in order to guarantee that the wheel barrow after the use is convenient for accomodate and not occupy too much space, the left and right sides footboard of wheel barrow sets up to the formula of can accomodating, folds when non-user state promptly, is expanding it when using.

According to the balance car with the small wheels and the double tires as shown in the application number 2017300572077, the pedals are in a circular sheet shape, and the pedals are tightly attached to the car body and integrated together in a folded state, so that the size of the car body is reduced, and the whole appearance is attractive. When a user is ready to ride, the user firstly steps on the unfolded left pedal or the unfolded right pedal, when the pedal is stepped to apply force, the pedal is stressed to be folded upwards, and the bicycle body is inclined towards one side and cannot get on the bicycle. In addition, because the fixing structure of the internal devices of the conventional balance car hub is unreasonable, faults such as poor power supply contact, control imbalance and the like are easy to occur.

Disclosure of Invention

The invention provides a portable single-wheel balance vehicle capable of switching the pedal state by pressing the pedals, aiming at the technical problems that the pedals of the existing single-wheel balance vehicle are not provided with a folding locking structure and the structural design of internal devices is unreasonable, wherein the vehicle body of the balance vehicle is stable when the balance vehicle is loaded, and the balance vehicle is easy to master by a rider; the battery pack and the main control board are firmly fixed, and the safety is high.

In order to achieve the purpose, the invention adopts the technical scheme that:

a novel balance car easy to master comprises a wheel set, a shell and pedals arranged on two sides of the wheel set, wherein the wheel set comprises a hub motor and a tire, the hub motor comprises a hub, a stator, a rotor and a motor shaft, the rotor is fixed on the inner wall of the hub, the stator is fixed on the motor shaft through a shaft key, a battery box is sleeved on the motor shaft, and a fixing part penetrating through the stator and fixing is arranged at one end of the battery box; the pedal comprises a bearing beam and a treading part, the treading part is connected with the bearing beam through a rotating shaft, the bearing beam comprises a vertical part connected with the wheel set and a transverse part connected with the treading part, and the transverse part is provided with a limiting groove and a shaft hole with a long-strip-shaped cross section; trample the portion and be connected with the horizontal portion through the pivot of installing in the shaft hole, trample the portion and be close to one side of horizontal portion and be provided with the stopper that can insert the spacing inslot.

Preferably, the number of the tires is two, and the tires are sleeved at two ends of the hub.

Preferably, the hub is sleeved with a wide tire covering the hub.

Preferably, an elastic block mounting hole is formed in the treading portion, and a telescopic elastic block abutting against the transverse portion is mounted in the elastic block mounting hole.

Preferably, scalable bullet piece is connected with the elastomer including supporting portion, separation blade and the spring post that integrative set up on the spring post, bullet piece mounting hole includes spring hole and separation blade spacing groove.

Preferably, the diameter of the two end parts of the wide tire is smaller than that of the middle part.

Preferably, a clamping groove is formed in the position, close to the battery box and the outer side of the stator, of the motor shaft, and a clamping spring is installed in the clamping groove.

Preferably, the upper surface of the battery box is provided with a radiating fin, a main control board is installed on the radiating fin, and an elastic pad is arranged between the radiating fin and the main control board.

Preferably, a support is provided to the lower surface of the step portion in the deployed state.

Preferably, a set of infrared photoelectric devices electrically connected with the main control board is arranged between the upper surface of the treading part in the unfolding state and the side surface of the shell.

Compared with the prior art, the invention has the advantages and positive effects that:

1. this single wheel balance car passes through the structural design of shell and footboard, has realized that footboard and shell combine together, and is whole just like an egg shape, and the handsome in appearance is unique.

2. The fixed knot of the inside group battery of wheelset and main control board constructs, makes group battery and main control board firmly fix in the automobile body, effectively avoids the group battery to remove, avoids power and control failure, increases the security performance.

3. The treading part is internally provided with a telescopic elastic block, and the treading part is automatically locked when the pedal is unfolded and cannot be folded, so that the vehicle can get on the vehicle conveniently; the foldable treading part can be unlocked by pressing the pedal, and the operation is convenient and quick.

4. The infrared photoelectric device is arranged on the pedal, so that the wheel set can be prevented from flying to rotate under the condition that the balance car is started accidentally, the balance car can be prevented from running out of a long distance when jumping, and the infrared photoelectric device is very practical.

5. This balance car, the difficult problem of getting on the bus of full consideration, the automobile body is stable when getting on the bus, and the novice also can easily get on the bus and ride, easily masters, obtains the enjoyment of riding.

Drawings

FIG. 1 is a schematic view of the overall structure of the balance car of the present invention;

FIG. 2 is a view of the internal components of the hub of the balance vehicle of the present invention;

FIG. 3 is a schematic diagram of a battery box structure of the balance car of the present invention;

fig. 4 is a cross-sectional view of the internal parts of the hub of the balance vehicle.

FIG. 5 is another schematic structural view of the balance car of the present invention;

FIG. 6 is an exploded view of the pedal structure of the balance car of the present invention;

FIG. 7 is a sectional view of the pedal structure of the balance car of the present invention;

fig. 8 is an electric control relation diagram of the balance car.

In the above figures: 1. a wheel set; 11. a hub; 12. a stator; 121. connecting holes; 13. a motor shaft; 131. a shaft key; 132. a card slot; 133. a clamp spring; 14. an end cap; 15. a tire; 2. a housing; 3. a pedal; 31. a spandrel girder; 311. a vertical portion; 312. a transverse portion; 3121. a limiting groove; 3122. a shaft hole; 32. a stepping part; 321. a groove; 322. a spring block mounting hole; 3221. a spring hole; 3222. a baffle plate limiting groove; 33. a rotating shaft; 34. a retractable bullet block; 341. an abutting portion; 342. a baffle plate; 343. a spring post; 344. an elastomer; 35. a supporting strip; 36. a limiting block; 4. a battery pack; 41. a battery plug-in; 411. a bottom wall; 412. a curved sidewall; 42. a lithium battery; 5. a main control board; 51. an elastic pad; 6. a battery case; 61. a lower wall; 62. an upper wall; 63. a left side wall; 64. a right side wall; 65. a shaft groove; 66. a slot cover; 67. a fixing member; 68. a locking piece; 69. a box cover; 7. a heat sink; 71. a support pillar; 8. an infrared photoelectric device; 81. an infrared emitter; 82. an infrared receiver.

Detailed Description

For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings and examples.

In the description of the present invention, it should be noted that the front-back direction of the balance car refers to the forward or backward direction thereof; the upper surface of the pedal 3 is the surface facing upward when the pedal 3 is unfolded and can be used for stepping, and the lower surface is the surface facing downward when the pedal 3 is unfolded.

Example (b): as shown in figure 1, the novel balance car easy to master comprises a wheel set 1, a shell 2 and pedals 3 arranged on two sides of the wheel set 1. As shown in fig. 2-4, the wheel set 1 includes an in-wheel motor, the in-wheel motor includes a hub 11, a rotor, a stator 12 and a motor shaft 13 are installed in the hub 11, the rotor is fixed on an inner wall of the hub 11, and the stator 12 is fixed on the motor shaft 13 through a shaft key 131. End covers 14 are mounted at two ends of the hub 11, and the end covers 14 are fixed at two ends of the motor shaft 13 through bearings.

Still install group battery 4 and main control board 5 in the wheel hub 11, group battery 4 supplies power for wheel hub motor, main control board 5 and other components and parts as the power, and main control board 5 controls wheel hub motor's operation. The main control board 5 is integrated with a single chip microcomputer, a gyroscope and an accelerometer, the gyroscope detects the inclination angle of the vehicle body and transmits the angle value to the accelerometer, and then the single chip microcomputer controls the hub motor to rotate forwards or backwards at a corresponding rotating speed.

In order to make reasonable use of the limited space inside the hub 11 and to securely fix the battery pack 4, the battery pack 4 is mounted in the battery case 6. The battery pack 4 includes a plurality of lithium batteries 42 connected in series, and both ends of each lithium battery 42 are assembled into a whole by a battery plug 41. The battery insert 41 includes a bottom wall 411, and a plurality of curved side walls 412 are disposed on the bottom wall 411 to form a space for accommodating the end of the battery. Be provided with a plurality of through-holes on the diapire 411 for the plug-in connection line, the polylith battery both ends are all installed in battery plug-in components 41, form a set of complete group battery 4. The design can assemble a plurality of lithium batteries 42 into a whole body, and the batteries are modularized, so that the whole vehicle can be assembled conveniently. And the battery pack 4 can be fixed to avoid power failure caused by relative movement in the using process.

The battery box 6 is of a semi-cylindrical shape and comprises a semi-arc lower wall 61, an upper wall 62 and a left side wall 63 which are integrally formed, and a right side wall 64 is detachably connected (based on the orientation of fig. 2). The upper wall 62 is provided with a shaft groove 65 and a groove cover 66 for accommodating the motor shaft 13, and the battery box 6 is sleeved on the motor shaft 13. In order to reduce the weight of the vehicle body, the battery box 6 is made of plastic and is difficult to fix with the motor shaft 13, so that the battery box is easy to rotate around a shaft or move along the radial direction of the shaft, power supply faults such as loose power supply wiring and the like are caused, safety accidents are caused, and abnormal sound is brought to the inside of the vehicle; and the main control board 5 is fixed on the battery box 6, and the battery box 6 shakes to easily influence the detection accuracy of the gyroscope on the main control board 5. In this embodiment, the right wall of the battery box 6 is provided with a fixing member 67, the stator 12 is provided with a connecting hole 121, the fixing member 67 penetrates through the connecting hole 121 and then penetrates out of the other side of the stator 12, and the end is provided with a locking piece 68, the fixing member 67 fixes the battery box 6 and the stator 12, and the stator 12 is fixed with the motor shaft 13 through a shaft key 131. For the convenience of processing and securing the firmness, the fixing member 67 is integrally formed with the battery case 6. In addition, a clamping groove 132 is formed in the motor shaft 13 at a position outside the battery box 6 and the stator 12, and a clamping spring 133 is installed in the clamping groove 132 to further prevent the battery box 6 and the stator 12 from moving axially along the motor shaft 13. Through the structure of this group battery 4 and battery case 6, realize the firm fixed of 11 inside batteries of wheel hub, not only the equipment is convenient, has realized the firm fixed of group battery 4 moreover, can effectively reduce power failure, improves balance car safety index.

The main control board 5 is integrated with important components such as a single chip microcomputer, a gyroscope, an accelerometer and the like, and the main control board is used as the brain of the balance car, and the fixing and heat dissipation of the main control board determine the service life of the whole car. In this embodiment, support columns 71 are disposed at four corners of the upper wall 62 of the battery box 6, heat dissipation sheets 7 are mounted on the support columns 71, elastic pads 51 are fixed at four corners of the metal heat dissipation sheets 7, and the main control board 5 is mounted on the elastic pads 51. The main control board 5 is fixed on the battery box 6, and the radiating fins 7 are additionally arranged between the main control board 5 and the battery box 6, so that the main control board 5 is firmly fixed in the wheel hub 11, and the space in the wheel hub 11 is effectively utilized. All set up the heat dissipation space between fin 7 and main control board 5 and the battery case 6, effectively guarantee the radiating effect, ensure the life of each components and parts. The elastic pad 51 can be a rubber pad, a PU pad or a silicon pad, has certain elasticity, can provide a buffer effect for the main control board 5, and protects the main control board 5 from rigid impact. A box cover 69 covering the main control panel 5 is installed above the battery box 6 to further protect the main control panel 5.

As shown in FIG. 1, a left pneumatic tire 15 and a right pneumatic tire 15 are sleeved outside a hub 11 and are respectively positioned at two ends of the hub 11, and a gas pipe for communicating the internal gas is arranged between the two tires 15. The left and right groups of tires 15 have good stability of the vehicle body, and are not difficult to be vertically placed on the ground by self like a common single-wheel balance vehicle. Connect through the air-supply pipe between two tires 15, during the turn, the person's health of riding inclines to one side, and inboard tire 15 atress is greater than outside tire 15, and inboard tire 15 gas can flow to outside tire 15 through the air-supply pipe until the atmospheric pressure is the same. The inner tire 15 diameter is now slightly smaller than the outer tire 15 diameter, facilitating cornering.

As shown in fig. 5, only one wide tire 15 may be fitted over the hub 11, and the tire 15 may cover the entire hub 11. The diameters of the two ends of the wide tire 15 are smaller than the diameter of the middle part of the wide tire, so that the wide tire is convenient to turn. The single-wheel balance vehicle with the wide tire 15 has strong bearing capacity and large friction force with the ground, and is suitable for running on wet and slippery road surfaces.

The whole shell 2 is cylindrical, two side walls are circular planes and are connected through an arc-shaped upper wall, and the shape of the shell 2 is consistent with that of the wheel set 1. The pedal 3 comprises a bearing beam 31 fixed on the motor shaft 13 and a treading part 32 for treading, and the treading part 32 is connected with the bearing beam 31 through a rotating shaft 33 and can be folded to be convenient for storage. Trample portion 32 for with the shell 2 side size unanimous circular slice form, be provided with the recess 321 that can hold spandrel girder 31 with spandrel girder 31's junction, when footboard 3 was folded, trample portion 32 and automobile body and closely laminate, and fuse as an organic whole with the automobile body, just as a complete egg shape, whole handsome in appearance is unique.

In order to prevent the pedal 3 from being stressed and folded when a user gets on the bicycle, the bicycle body is inclined towards one side, and a pressing locking mechanism is arranged in the pedal 3. Specifically, as shown in fig. 6 and 7, the load-bearing beam 31 includes a vertical portion 311 connected to the wheel and a horizontal portion 312 connected to the tread portion 32, and the horizontal portion 312 is provided with a stopper groove 3121 and a shaft hole 3122 having a long cross section. An elastic block mounting hole 322 is formed in the treading portion 32, the elastic block mounting hole 322 comprises a spring hole 3221 and a blocking piece limiting groove 3222, and a telescopic elastic block 34 abutting against the transverse portion 312 is mounted in the elastic block mounting hole 322. The retractable spring block 34 includes an abutting portion 341, a stopper 342 and a spring post 343, which are integrally disposed, the spring post 343 is connected with an elastic body 344, and the elastic piece is limited to move in the stopper limiting groove 3222, so that the abutting portion 341 can extend out of or retract into the spring block mounting hole 322. When the pedal 3 is naturally unfolded, the abutting portion 341 abuts against the outer wall of the transverse portion 312 due to the elastic force of the spring, the rotating shaft 33 is pulled to one side of the stepping portion 32 in the shaft hole 3122, the limiting block 36 is located in the limiting groove 3121, and the stepping portion 32 cannot rotate around the rotating shaft 33 at this time due to the fact that the limiting block 36 and the limiting groove 3121 are both square, and the pedal 3 is locked. At the moment, the pedal at one side is supported on the ground, so that the pedal can not be folded when a rider gets on the bicycle, and the rider can easily get on the bicycle. When the pedal 3 is to be folded, the pedal 3 is pushed towards the wheel set 1, the stepping portion 32 approaches the transverse portion 312, the abutting portion 341 retracts into the elastic block mounting hole 322, the limit block 36 leaves the limit groove 3121, the stepping portion 32 can freely rotate, and the pedal 3 can be folded. The pedal 3 is automatically locked when the pedal is opened and freely rotated when the pedal is pressed by the retractable spring block 34 installed in the stepping part 32. Under the locking state, the rider gets on the bicycle, and the pedal can not be folded, so that the bicycle is very practical.

Since the side of the edge of the stepping part 32 contacting the ground is a round edge, the balance car may rotate around the fulcrum when the pedal 3 on one side is stepped, and the balance car is inconvenient to get on. The balance car of this embodiment has a supporting member arranged along the outer edge of the lower surface of the treading portion 32, the supporting member is a circular arc supporting strip 35, and the outer surface of the supporting member is provided with anti-skid stripes. The support bar 35 can reduce the inclination of the vehicle body, increase the contact area between the stepping part 32 and the ground, and increase the friction force, thereby avoiding the problem of the pedal that is forced to rotate.

A set of infrared photoelectric devices 8 is disposed between two side surfaces of the balance car housing 2 and the upper surface of the stepping portion 32 adjacent to the side surfaces, the infrared photoelectric devices 8 include an infrared emitter 81 mounted on the side surface of the housing 2, and an infrared receiver 82 mounted on the upper surface of the stepping portion 32, and the infrared receiver 82 is electrically connected to the controller (see fig. 8). The upper surface of the stepping part 32 is that when the pedal is folded at the upward side in the pedal opening state, the infrared transmitter 81 and the infrared receiver 82 are staggered; when the pedal is opened, the infrared transmitter 81 and the infrared receiver 82 are opposite.

When the balance car pedal is folded, if the balance car pedal is placed in a backpack and a power key is pressed carelessly, the infrared receiver 82 cannot receive photoelectric signals, the controller judges that the pedal is not opened, and the hub motor is not started. If the vehicle body inclines in the backpack, the hub motor can not be started, and the wheel set is prevented from flying and rotating in the backpack.

When riding, the pedal 3 is turned on, the power key is pressed, the infrared receiver 82 receives a photoelectric signal from the infrared transmitter 81, the riding preparation is determined to be ready, and the hub motor is in standby. In the riding process, the feet block photoelectric signals. When the riding speed is high and the rider accidentally encounters a dangerous condition, the rider jumps off from the balance car, and the common balance car still can run quickly and run for a long distance. This embodiment the balance car when the speed of riding when very fast and photoelectric signal switch on suddenly, the controller judges to take place the jump car, and the in-wheel motor stall of controller control this moment avoids the driving.

Furthermore, the emitting end is installed at the center of the stepping part 32, so that the situation that the infrared photoelectric device 8 cannot be blocked due to stepping deviation can be avoided, and detection errors can be avoided.

This embodiment the single wheel balance car pass through shell 2 and pedal 3's structural design, realized that pedal 3 and shell 2 combine together, whole just as an egg-shaped, the handsome in appearance is unique. The fixed knot of the inside group battery 4 of wheelset 1 and main control board 5 constructs, makes group battery 4 and main control board 5 firmly fix in the automobile body, effectively avoids group battery 4 to remove, avoids power and control fault, increases the security performance. The stepping part 32 is internally provided with a telescopic elastic block 34, and the stepping part 32 is automatically locked when the pedal is unfolded and cannot be folded, so that the user can get on the bicycle conveniently; the foldable treading part 32 is unlocked by pressing the pedal, and the operation is convenient and quick. The outer edge of the stepping part 32 is provided with a support to prevent the pedal from being forced to rotate in place. In addition, the infrared photoelectric device 8 is arranged on the pedal, so that the wheel set 1 can be prevented from flying to rotate under the condition that the balance car is started accidentally, the balance car can be prevented from running out of a long distance when jumping, and the device is very practical. The balance car, the difficult problem of getting on the bus is fully considered, the automobile body is stable when getting on the bus, and the novice also can easily get on the bus and ride, easily grasp, obtain the enjoyment of riding.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides an easily grasp novel balance car, includes wheelset, shell and installs the footboard in wheelset both sides, its characterized in that: the wheel set comprises a hub motor and a tire, the hub motor comprises a hub, a stator, a rotor and a motor shaft, the rotor is fixed on the inner wall of the hub, the stator is fixed on the motor shaft through a shaft key, a battery box is sleeved on the motor shaft, and a fixing part which penetrates through the stator and is fixed is arranged at one end of the battery box;

the pedal comprises a bearing beam and a treading part, the treading part is connected with the bearing beam through a rotating shaft, the bearing beam comprises a vertical part connected with the wheel set and a transverse part connected with the treading part, one side of the transverse part close to the bearing beam is provided with a limiting groove, and one side of the transverse part close to the treading part is provided with a shaft hole with a long-strip-shaped cross section; trample the portion and be connected with the horizontal portion through the pivot of installing in the shaft hole, trample the portion and be close to one side of horizontal portion and be provided with the stopper that can insert the spacing inslot.

2. The novel balance car easy to master as claimed in claim 1, wherein: the number of the tires is two, and the tires are sleeved at two ends of the wheel hub.

3. The novel balance car easy to master as claimed in claim 1, wherein: the hub is sleeved with a wide tire for coating the hub.

4. The novel balance car easy to master as claimed in claim 2 or 3, wherein: trample and be provided with the bullet piece mounting hole in the portion, install in the bullet piece mounting hole and lean on the scalable bullet piece on the horizontal portion.

5. The novel balance car easy to master as claimed in claim 4, wherein: scalable bullet piece includes support portion, separation blade and the spring post that an organic whole set up, is connected with the elastomer on the spring post, the bullet piece mounting hole includes spring hole and separation blade spacing groove.

6. The novel balance car easy to master as claimed in claim 3, wherein: the diameters of the two end parts of the wide tire are smaller than that of the middle part.

7. The novel balance car easy to master as claimed in claim 1, wherein: a clamping groove is formed in the position, close to the outer sides of the battery box and the stator, of the motor shaft, and a clamping spring is installed in the clamping groove.

8. The novel balance car easy to master as claimed in claim 7, wherein: the battery box upper surface is provided with the fin, installs the main control board on the fin, be provided with the cushion between fin and the main control board.

9. The novel balance car easy to master as claimed in claim 6 or 7, wherein: the outer edge of the lower surface of the treading part in the unfolding state is provided with a supporting piece.

10. The novel balance car easy to master as claimed in claim 9, wherein: a group of infrared photoelectric devices electrically connected with the main control panel are arranged between the upper surface of the treading part in the unfolding state and the side surface of the shell.