CN213292569U - Electric balance car - Google Patents

Abstract

The utility model provides an electrodynamic balance car, it includes left frame, right frame, control assembly and power, left side frame includes left casing and left wheel, right side frame includes right casing and right wheel, control assembly including divide locate about on the frame gyroscope and with gyroscope signal connection's circuit board, the gyroscope is used for detecting the inclination of left side frame and right frame on the fore-and-aft direction, in the front-and-aft direction, electrodynamic balance car's focus is balanced for the axis of rotation of controlling the wheel. So set up for electrodynamic balance car itself realizes the self-balancing under initial condition promptly, convenient to use, makes electrodynamic balance car's structure simplify, saves the cost.

Description

Electric balance car

Technical Field

The utility model relates to a double round balance car field especially relates to an electrodynamic balance car.

Background

The electric balance car is convenient to carry, simple to operate and good in stability, and is gradually concerned and loved by young people. The two-wheeled electrodynamic balance car adopts two wheels to support, and the battery power supply, brushless motor drive, and single chip microcomputer control in addition, attitude sensor gathers angular velocity and angle signal, and the balance of common coordinated control automobile body only relies on the change of human focus alright realize actions such as start, acceleration, speed reduction, the stopping of vehicle.

Due to the arrangement of the element positions, the balance car is often in a state of center of gravity deviation. After the balance car is started, the balance car can automatically adjust balance under the action of the attitude sensor, so that the balance car is difficult to maintain a static state in a state that the balance weight is unbalanced, and the balance car can immediately run forwards or backwards after the balance car is started, so that the balance car is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a balanced, convenient to use's of counter weight electrodynamic balance car.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an electrodynamic balance car, its includes left frame, right frame, control assembly and power, left side frame includes left casing and left wheel, right side frame includes right casing and right wheel, control assembly including divide locate about on the frame gyroscope and with gyroscope signal connection's circuit board, the gyroscope is used for detecting left side frame and right frame are the ascending angle information in front and back direction, its characterized in that: the center of gravity of the electric balance car is located on the plane where the rotation axes of the left wheel and the right wheel are located in the front-rear direction. Due to the balance weight in the front-back direction, the balance car can be in a self-balancing state after being started.

As the utility model discloses further modified technical scheme, circuit board and power are in the projection on ground is respectively about the axis of rotation front and back symmetry of controlling the wheel.

As the utility model discloses further modified technical scheme, electrodynamic balance car's focus is located in the up-down direction the rotation axis place planar below of controlling the wheel.

As a further improved technical scheme of the utility model, left side casing perhaps right side casing rear side is equipped with handle or steering column, left side casing perhaps right side casing front side is equipped with the balancing weight rather than the weight adaptation.

As the utility model discloses further modified technical scheme, left side casing perhaps right side casing rear side is equipped with handle or steering column, the control assembly internal cure has the angle compensation module rather than the conversion volume adaptation of weight to be used for maintaining the self-balancing of electrodynamic balance car.

As the utility model discloses further modified technical scheme, the power about the rotation axis of controlling the wheel around symmetrical install in left side frame perhaps in the right side frame, the circuit board install respectively in about the frame is close to control one side of wheel, and about the rotation axis of controlling the wheel around symmetrical.

As a further improved technical scheme of the utility model, when the electric balance car is not acted by external force, the electric balance car maintains self-balance in a state of balance weight balance; when an external force is applied to the left frame or the right frame, the gyroscope on the corresponding side deflects, and the control component on the side drives the wheels on the side to move forwards or backwards to maintain balance.

As the utility model discloses further modified technical scheme, wheel pivoted first circuit board and second circuit board about the circuit board is including controlling respectively, the power does simultaneously first circuit board with the power supply of second circuit board, first circuit board is fixed in through first circuit board mount left side casing, the second circuit board is fixed in through second circuit board mount right side casing.

As a modified technical scheme of the utility model, the electrodynamic balance car still includes the slewing mechanism who rotates the connection about with the frame, slewing mechanism includes relative pivoted first axial region and second axial region, first axial region with left side casing fixed connection, second axial region with right side casing fixed connection, a pot head of first axial region is located the one end outside of second axial region, the spacer pin is stretched out along radial suddenly to the one end of second axial region, set up the spacing hole that supplies the spacer pin to pass on the first axial region, spacer pin and spacing hole cooperation are in order to restrict first axial region and second axial region relative pivoted angle. The radial protruding limiting pin can limit the maximum range of relative rotation of the first shaft part and the second shaft part on one hand, and on the other hand, the radial protruding limiting pin can also be used for connecting the first shaft part and the second shaft part, so that the assembly and disassembly caused by the traditional installation mode of the clamp spring and the shaft sleeve are simplified and inconvenient.

As the utility model discloses further modified technical scheme, slewing mechanism is still including the location portion that is located between left frame and the right frame, be equipped with the shaft hole that supplies the connecting axle to pass and the wire guide that supplies the wire to pass on the location portion, primary shaft portion is close to on the lateral wall of left wheel one side, and secondary shaft portion is close to the metallic channel has all been seted up on the lateral wall of right wheel one side. The setting of wire casing and wire guide makes the wire accomodate regular, also further reduces the unbalance that the wire dead weight balance brought on the one hand.

The utility model has the advantages that: the electric balance car is manufactured primarily in production, a balance state with reasonable balance weight and front-back symmetry about the rotation axis of the left wheel and the right wheel is formed, so that the electric balance car can realize self balance in the initial state, and the use is convenient.

Drawings

Fig. 1 is a perspective view of the electric balance car of the present invention.

Fig. 2 is a perspective view of the electric balance car of fig. 1 without a left housing and a right housing.

Fig. 3 is an exploded view of the electric balance car of fig. 1.

Fig. 4 is a sectional view of the electric balance car of fig. 2.

Reference numerals: an electric balance car 100; a left frame 1, a left housing 11, a left wheel 12, a left upper housing 111, a left lower housing 112, a left pedal 113, a left axle 121; right frame 2, right housing 21, right wheel 22, right upper housing 211, right lower housing 212, right pedal 213, right axle 221; a power supply 3, a power supply holder 31; a first circuit board holder 41, a second circuit board holder 42; the rotating mechanism 5 comprises a first shaft part 51, a second shaft part 52, a first fixing frame 53, a second fixing frame 54, a positioning part 55, a limiting hole 511, a shaft sleeve 521, a connecting shaft 522 and a mounting hole 523.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Terms such as "upper," "lower," "front," "rear," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one feature's relationship to another feature as illustrated in the figures. It will be understood that the spatially relative positional terms may be intended to encompass different orientations than those shown in the figures depending on the product presentation position and should not be construed as limiting the claims.

Referring to fig. 1 to 2, the present invention provides an electric balance car 100, which includes a left frame 1, a right frame 2, a power source 3, a control assembly, and a rotation mechanism 5 rotatably connecting the left frame 1 and the right frame 2.

Referring to fig. 3, the left frame 1 includes a left housing 11 and a left wheel 12 mounted on the left side of the left housing 11, the left housing 11 is formed by fastening a left upper housing 111 and a left lower housing 112, and a receiving cavity is formed between the two housings. Similarly, the right frame 2 includes a right housing 21 and a right wheel 22 mounted on the right side of the right housing 21, and the right housing 21 is formed by fastening a right upper housing 211 and a right lower housing 212, with a receiving cavity formed therebetween. In other embodiments, the left upper shell 111 and the left lower shell 112 may be assembled by a screw fastening method or a snap-fit fastening method. In other embodiments, the right upper housing 211 and the right lower housing 212 may be assembled by a conventional method such as screw fastening or snap-fit fastening.

Left and right pedals 113 and 213 are provided above the left and right housings 11 and 21. Preferably, a hole or a slot is formed in the middle of the left upper shell 111, a hole or a slot is formed in the middle of the right upper shell 211, and the pedal can be installed in the hole or the slot in the middle. In some existing installation methods, the pedal is installed in a buckling manner by using a buckle, or the pedal is installed in a clamping manner, a sleeving manner or a fastening manner by using a fastener, and the like.

The rear side of the left housing 11 is also provided with a handle for carrying a hand.

In other embodiments, a steering rod may be provided on the rear side of the housing 11. The weight balancing block is arranged on the front side of the left shell 11 and corresponds to the weight of the handle or the steering rod, so that the center of gravity of the left shell is balanced front and back relative to the rotating axis. The right housing 21 is shaped symmetrically with respect to the rotational axis of the left and right wheels.

In other embodiments, a steering rod may be provided on the rear side of the housing 11. The rear side of the left shell 11 is provided with a handle or a steering rod, and an angle compensation module matched with the weight conversion amount is solidified in the control assembly to maintain the self-balance of the electric balance car.

The center of gravity of the electric balance vehicle is located on the plane of the rotation axes of the left and right wheels in the front-rear direction, and is located below the plane of the rotation axes of the left and right wheels in the up-down direction. The projections of the circuit board and the power supply on the ground are respectively symmetrical front and back about the rotation axes of the left wheel and the right wheel.

In this embodiment, a battery pack is used to supply power, and the power source 3 is disposed in the left housing 11. The power source 3 is disposed symmetrically with respect to the rotation axis of the left and right wheels in the front-rear direction. The power supply 3 is fixed in the left casing 11 in a binding manner through a power supply fixing frame 31. Specifically, the power supply 3 and the power supply holder 31 are sequentially located below the rotational axes of the left and right wheels 12, 22. The power source fixing bracket 31 is U-shaped and fixes the power source 3 to the upper left housing 111 in a binding manner upward. Because electrodynamic balance car 100's weight mainly concentrates on with power 3, the 3 symmetry settings of power make electrodynamic balance car 100's focus more conveniently be in balanced state in the front and back orientation, avoid needing to increase balancing weight or drive power and adjust again because power centrobaric skew, make the utility model discloses an electrodynamic balance car 100 simple structure. The binding type fixing mode prevents the power supply 3 from shaking in the left shell 11, and avoids unstable gravity center of the electric balance car 100. The left wheel 12, the right wheel 22 are both provided with hub motors which are electrically connected with a power supply. The structure and the working principle of the hub motor are the prior art and are not repeated. In other embodiments, two battery packs may be mounted on both sides of the left and right housings, respectively, and only the balance in the front-rear direction needs to be maintained.

The control assembly includes a gyroscope and circuit boards for controlling rotation of the left and right wheels 12, 22, respectively. In the front and rear direction, the circuit board is symmetrical setting for the axis of rotation of left and right wheels 12, 22, and the circuit board specifically includes first circuit board and the second circuit board of controlling left and right wheels 12, 22 pivoted respectively, promptly: the first circuit board and the second circuit board are respectively symmetrical front and back with respect to the rotational axis of the left and right wheels 12, 22. So set up for electrodynamic balance car centre of gravity itself is changeed in the balance. The first circuit board is fixed to the left housing 11 through a first circuit board fixing frame 41, and the second circuit board is fixed to the right housing 21 through a second circuit board fixing frame 42. The first circuit board fixing frame 41 is fixed above the wire guide groove of the first shaft portion 51, and the second fixing frame 42 is fixed above the wire guide groove of the second shaft portion 52.

The gyroscope is used for detecting the attitude information of the electric balance car 100 so as to control the electric balance car 100 to keep a balance state. The first circuit board and the second circuit board are respectively connected with the gyroscope, and the first circuit board and the second circuit board generate a control instruction according to the attitude information of the electric balance car 100 sent by the gyroscope, and send the control instruction to the in-wheel motor so as to drive the in-wheel motor to operate.

When the device is used, the two gyroscopes at the two sides respectively measure the angle information of the left frame 1 and the right frame 2 to realize foot control. The left frame and the right frame are respectively provided with a control component at two sides, one is a main control component and the other is an auxiliary control component, the two control components are connected in series through a lead, the control component at the left side is responsible for controlling the posture of the wheel and the frame at the left side, and the control component at the right side is responsible for controlling the posture of the wheel and the frame at the right side. The two control assemblies are uniformly controlled by a switch, and the switch is arranged on the main control assembly. The gyroscope chip is mainly used for controlling the left and right frames 1 and 2 to keep the posture during calibration all the time after being electrified and calibrated, if the vehicle is tried to move forwards and backwards or turn around, a certain force needs to be manually exerted on the front or the back of the frames to destroy the posture controlled by the gyroscope, and the gyroscope can command the control component to drive the wheels to move forwards or backwards to maintain the level (to counteract the force which artificially destroys the balance) in order to keep the posture.

Referring to fig. 3 and 4, the rotating mechanism 5 includes a first shaft 51, a second shaft 52, and a positioning portion 55 disposed between the left frame 1 and the right frame 2. The first shaft portion 51 is fixedly connected with the left housing 11, the second shaft portion 52 is fixedly connected with the right housing 21, one end of the first shaft portion 51 is sleeved outside one end of the second shaft portion 52, one end of the second shaft portion 52 radially protrudes out of a limit pin (not shown), the first shaft portion 51 is provided with a limit hole 511 for the limit pin to pass through, and the limit pin and the limit hole 511 are matched to limit the relative rotation angle of the first shaft portion 51 and the second shaft portion 52.

The second shaft portion 52 includes a sleeve 521 and a connecting shaft 522, the connecting shaft 522 is connected to the first shaft portion 51, the limit pin is disposed on the connecting shaft 522, and the connecting shaft 522 is provided with a mounting hole 523 for fixing the limit pin. In assembly, the connecting shaft 522 is first inserted into one end of the first shaft portion 51 such that the stopper hole 511 is aligned with the mounting hole 523, and then the stopper pin is fixed in the mounting hole 523.

The first shaft 51 is fixed to the upper left housing 111 by a first fixing frame 53 and a plurality of bolts. The first shaft 51 is cylindrical, and the other end of the first shaft 51 is fixed to the wheel axle 121 of the left wheel 12; the shaft sleeve 521 is fixed to the upper right housing 211 by a second fixing frame 54 and a plurality of bolts. The sleeve 521 is cylindrical, one end of the sleeve 521 is fixed to one end of the connecting shaft 522, and the other end of the sleeve 521 is fixed to the axle 221 of the right wheel 22. In order to increase the fixing strength between the first shaft 51 and the sleeve 521 and the upper left housing 111, the number of the first fixing frame 53 and the second fixing frame 54 is 2. The two first fixing frames 53 are generally located at positions of the first shaft 51 near two ends, a fixing position of the first shaft 51 and the axle 121 of the left wheel 12 is a semi-cylinder, and the semi-cylinder and the axle 121 are jointly bound and fixed to the left upper shell 111 through the first fixing frames 53. Similarly, the fixing position of the shaft sleeve 521 and the wheel shaft 221 of the right wheel 22 is a semi-cylinder, and the semi-cylinder and the wheel shaft 221 are bound and fixed to the right upper housing 211 through the second fixing frame 54.

The positioning portion 55 has a disk shape, and is provided with a shaft hole through which the connecting shaft 522 passes and a wire guide hole 551 through which a wire passes, and the positioning portion 55 is fixedly attached to the left housing 11 or the right housing 21.

To sum up, the electric balance car of the present invention sets the limit pin on the first shaft 51 along the radial direction, and sets the limit hole 511 matched with the limit pin on the second shaft 52, so as to limit the rotation angle of the first shaft 51 and the second shaft 52, and further limit the rotation angle of the left frame 1 relative to the right frame 2, which not only has simple structure and convenient assembly, but also increases the safety and user experience of the electric balance car 100; the utility model discloses an electrodynamic balance car is through setting up power 3 and circuit board respectively for 51 symmetries of primary shaft portion for electrodynamic balance car 100 itself realizes the self-balancing promptly under initial condition, need not to set up balancing weight or other structures in addition and come to trim the automobile body, makes electrodynamic balance car 100's structure simplify, saves the cost.

In addition, the above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical personnel in the technical field, and although the present specification has described the present invention in detail with reference to the above embodiments, the person of ordinary skill in the art should understand that the person of ordinary skill in the art can still modify the present invention or substitute the same, and all the technical solutions and modifications that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides an electrodynamic balance car, its includes left frame, right frame, control assembly and power, left side frame includes left casing and left wheel, right side frame includes right casing and right wheel, control assembly including divide locate about on the frame gyroscope and with gyroscope signal connection's circuit board, the gyroscope is used for detecting left side frame and right frame are the ascending angle information in front and back direction, its characterized in that: the center of gravity of the electric balance car is located on the plane where the rotation axes of the left wheel and the right wheel are located in the front-rear direction.

2. The electrodynamic balance car of claim 1, wherein: the projections of the circuit board and the power supply on the ground are respectively symmetrical front and back about the rotation axes of the left wheel and the right wheel.

3. The electrodynamic balance car of claim 1, wherein: the center of gravity of the electric balance car is located below the plane where the rotation axes of the left wheel and the right wheel are located in the vertical direction.

4. The electrodynamic balance car of claim 1, wherein: the left shell or the right shell rear side is equipped with handle or steering column, the left shell or the right shell front side is equipped with the balancing weight rather than weight adaptation.

5. The electrodynamic balance car of claim 1, wherein: the left shell or the right shell rear side is equipped with handle or steering column, the control assembly internal fixation has the angle compensation module rather than the conversion volume adaptation of weight.

6. The electrodynamic balance car of claim 1, wherein: the power supply is arranged in the left frame or the right frame in a front-back symmetrical mode relative to the rotation axis of the left wheel and the right wheel, and the circuit boards are respectively arranged on one sides of the left frame and the right frame, which are close to the left wheel and the right wheel, and in a front-back symmetrical mode relative to the rotation axis of the left wheel and the right wheel.

7. The electric balance vehicle of any one of claims 1 to 6, wherein: when the electric balance car is not influenced by external force, the electric balance car maintains self balance under the state of balance weight balance; when an external force is applied to the left frame or the right frame, the gyroscope on the corresponding side deflects, and the control component on the side drives the wheels on the side to move forwards or backwards to maintain balance.

8. The electrodynamic balance car of claim 7, wherein: the circuit board comprises a first circuit board and a second circuit board which respectively control the left wheel and the right wheel to rotate, the power supply supplies power to the first circuit board and the second circuit board at the same time, the first circuit board is fixed on the left shell through a first circuit board fixing frame, and the second circuit board is fixed on the right shell through a second circuit board fixing frame.

9. The electrodynamic balance car of claim 8, wherein: electrodynamic balance car still includes the slewing mechanism who rotates the connection about will, slewing mechanism includes relative pivoted first axial region and second axial region, first axial region with left side frame fixed connection, the pot head of first axial region is located the one end outside of second axial region, the spacer pin is radially stretched out to the one end of second axial region, set up the spacing hole that supplies the spacer pin to pass on the first axial region, spacer pin and spacing hole cooperation are in order to restrict first axial region and second axial region relative pivoted angle.

10. The electric balance vehicle of claim 9, wherein: the rotating mechanism further comprises a positioning part positioned between the left frame and the right frame, the positioning part is provided with a shaft hole for a connecting shaft to pass through and a wire guide hole for a wire to pass through, the first shaft part is close to the side wall of one side of the left wheel, and the second shaft part is close to the side wall of one side of the right wheel, and wire guide grooves are formed in the side wall of the other side of the right wheel.

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