CN213292568U

CN213292568U - Electric balance car

Info

Publication number: CN213292568U
Application number: CN202021857268.4U
Authority: CN
Inventors: 朱永财
Original assignee: Individual
Current assignee: Zhejiang Anshang Robot Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-05-28
Anticipated expiration: 2030-08-31

Abstract

The utility model provides an electrodynamic balance car, it includes left frame, right frame and will control the slewing mechanism that the frame rotates the connection, left side frame includes left casing and left wheel, right side frame includes right casing and right wheel, slewing mechanism includes relative pivoted first axial region and second axial region, first axial region with left side frame fixed connection, second axial region with right side frame fixed connection, a pot head of first axial region is located the one end outside of second axial region, the spacer pin is radially stretched out 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 with the restriction the relative pivoted angle of first axial region and second axial region. So set up, simple structure not only, convenient assembling has increased the security and the user experience degree that electrodynamic balance car used moreover.

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.

Chinese patent CN201420315165.3 discloses a longitudinal two-wheel vehicle body, which comprises a top cover, an inner cover, a bottom cover, a hub motor and a rotating mechanism; the top cover, the inner cover and the bottom cover respectively comprise two parts which are symmetrically arranged and can rotate mutually, and the inner cover is positioned between the top cover and the bottom cover and is matched with the top cover and the bottom cover; a rotating mechanism is fixed at the middle transverse position of the inner cover; the edge positions of the left side and the right side of the inner cover are fixedly provided with a wheel hub motor which is longitudinally arranged; the top cover, the inner cover and the bottom cover are matched together to form a cavity for mounting an electric drive system, and the electric drive system is connected with the hub motor; the rotating mechanism comprises two bearings, a shaft sleeve and two clamp springs; the two bearings are respectively fixed at the inner ends of two same parts of the inner cover, and the shaft sleeve is fixed in the two bearings and is fixed on the inner cover through a clamp spring.

However, in the above structure, because the short shaft in the middle is adopted to be connected with the left and right vehicle bodies respectively so as to realize the relative rotation of the left and right vehicle bodies, when the vehicle is actually produced and assembled, the matching installation mode of the bearing, the shaft sleeve and the snap spring brings great inconvenience to the assembly work, and for better fixing the short shaft, the whole vehicle body adopts a three-layer structure vehicle body consisting of a top cover, an inner cover and a bottom cover so as to realize the stability of the vehicle body during movement, and the vehicle has numerous parts, complex structure and high cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electrodynamic balance car of convenient assembling, simple structure.

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 and will control the frame and rotate the slewing mechanism who connects, left side frame includes left casing and left wheel, right side frame includes right casing and right wheel, slewing mechanism includes relative pivoted first axial region and second axial region, first axial region with left casing fixed connection, second axial region with right casing fixed connection, the 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 spacer pin can restrict the maximum range of relative rotation of the first shaft part and the second shaft part on the one hand, and on the other hand, the radial protruding spacer 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 a further improved technical scheme of the utility model, the slewing mechanism link up install in left and right frame. The long shaft integrally formed by the first shaft part and the second shaft part is used as a central framework of the electric balance car to be directly connected with wheels on two sides, so that the mounting of the traditional electric balance car by adopting a three-layer structure is simplified, and a plurality of parts are provided.

As the utility model discloses further modified technical scheme, first axial region and second axial region do not with the shaft coaxial arrangement of controlling the wheel, the shaft of first axial region and left wheel is fixed in left casing jointly, the shaft of second axial region and right wheel is fixed in right casing jointly.

As the utility model discloses further modified technical scheme, second axle portion includes axle sleeve and connecting axle, the connecting axle is connected first axial region, the spacer pin is located on the connecting axle.

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, location portion is discoid, is equipped with the confession on it the shaft hole that slewing mechanism passed and the wire guide that supplies the wire to pass.

As the utility model discloses further modified technical scheme, the left side casing includes upper left casing and left lower casing, primary shaft portion is fixed in through first mount and a plurality of bolt bundling upper left casing.

As the utility model discloses further modified technical scheme, right side casing includes casing and the casing under the right side, the axle sleeve is fixed in through second mount and a plurality of bolt bundling casing on the right side.

As a further improved technical scheme of the utility model, the primary shaft portion is close to the metallic channel has been seted up on the lateral wall of left wheel one side.

As a further improved technical solution of the present invention, the second shaft portion is close to the side wall on one side of the right wheel, and a wire groove is provided thereon.

As the utility model discloses further modified technical scheme, the electrodynamic balance car still includes the power and controls first circuit board and the second circuit board of left and right wheel pivoted 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 further improved technical solution of the present invention, the power source is bundled and fixed to the upper left casing and/or the upper right casing.

As the utility model discloses further modified technical scheme, electrodynamic balance car still includes the gyroscope, the gyroscope is used for detecting electrodynamic balance car is in the ascending angle change of front and back side, through the feedback of gyroscope, control electrodynamic balance car keeps the self-balancing state.

As a further improved technical solution of the present invention, the center of gravity of the electric balance car is located on the first shaft portion and the common axis of the second shaft portion.

As a further improved technical scheme of the utility model, left side wheel and right wheel all are equipped with in-wheel motor.

The utility model has the advantages that:

on one hand, the driving is realized by directly connecting the through long shaft form with the left wheel and the right wheel, the inconvenience in installation caused by the connection and matching of a plurality of connecting parts in the short shaft form is eliminated, a middle supporting layer is not required, the structure is simple, and the cost is saved;

on one hand, the first shaft part is provided with a limiting pin along the radial direction to limit the rotating angle of the first shaft part and the second shaft part, so that the rotating angle of the left frame relative to the right frame is limited, the structure is simple, and the assembly is convenient;

on the one hand, a front-back balance reasonable balance weight mode is adopted, self-balance of the balance car in a starting state is achieved, and use safety and user experience of the electric balance car are improved.

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.

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 threading slot on the first shaft portion 51, and the second fixing frame 42 is fixed above the wire guiding slot on 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.

In other embodiments, pressure sensors may be further disposed to sense gravity information, for example, the pressure sensors are disposed on the left housing 11 and the right housing 12 to detect the foot pressure applied to the front and the rear of the electric balance car. Specifically, the pressure sensor may be provided at the bottom of the left and right pedals 13 and 23 of the left and

right housings

11 and 21.

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

1. The utility model provides an electrodynamic balance car, its includes left frame, right frame and will control the slewing mechanism that the frame rotation is connected, left side frame includes left casing and left wheel, right frame includes right casing and right wheel, its characterized in that: the rotating mechanism comprises a first shaft part and a second shaft part which can rotate relatively, the first shaft part is fixedly connected with the left frame, the second shaft part is fixedly connected with the right frame, one end of the first shaft part is sleeved outside one end of the second shaft part, one end of the second shaft part radially protrudes out of the limiting pin, a limiting hole for the limiting pin to penetrate is formed in the first shaft part, and the limiting pin and the limiting hole are matched to limit the angle of relative rotation of the first shaft part and the second shaft part.

2. The electrodynamic balance car of claim 1, wherein: the rotating mechanism is mounted in the left frame and the right frame in a penetrating way.

3. The electric balance vehicle of claim 2, wherein: the first shaft part and the second shaft part are respectively and coaxially mounted with wheel shafts of the left wheel and the right wheel, the first shaft part and the wheel shaft of the left wheel are jointly fixed on the left shell, and the second shaft part and the wheel shaft of the right wheel are jointly fixed on the right shell.

4. The electric balance vehicle of claim 3, wherein: the second shaft part comprises a shaft sleeve and a connecting shaft, the connecting shaft is connected with the first shaft part, and the limiting pin is arranged on the connecting shaft.

5. The electrodynamic balance car of claim 4, wherein: the rotating mechanism further comprises a positioning part positioned between the left frame and the right frame, the positioning part is disc-shaped, and a shaft hole for the rotating mechanism to penetrate through and a wire guide hole for a wire to penetrate through are formed in the positioning part.

6. The electric balance vehicle of claim 5, wherein: the left shell comprises an upper left shell and a lower left shell, and the first shaft part is fixed on the upper left shell in a binding manner through a first fixing frame;

and/or the right shell comprises an upper right shell and a lower right shell, and the shaft sleeve is fixed on the upper right shell in a binding manner through a second fixing frame;

and/or a wire guide groove is formed in the side wall of the first shaft part, which is close to one side of the left wheel;

and/or a wire guide groove is formed in the side wall of the second shaft part, which is close to one side of the right wheel.

7. The electric balance car of claim 6, wherein: the electric balance car further comprises a power supply, a first circuit board and a second circuit board, wherein the first circuit board and the second circuit board are used for controlling the left wheel and the right wheel to rotate respectively, the power supply is used for supplying power to the first circuit board and the second circuit board simultaneously, 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.

8. The electrodynamic balance car of claim 7, wherein: the power supply is fixed on the upper left shell and/or the upper right shell in a binding mode.

9. The electric balance vehicle of any one of claims 1 to 8, wherein: the electric balance car further comprises a gyroscope, the gyroscope is used for detecting angle change of the electric balance car in the front-back direction, and the electric balance car is controlled to keep a self-balancing state through feedback of the gyroscope.

10. The electric balance vehicle of claim 9, wherein: the center of gravity of the electric balance car is located on a common axis of the first shaft portion and the second shaft portion.