Electric balance car

Abstract

The present invention provides an electric balancing vehicle, comprising: a top shell, comprising a left top shell and a right top shell that can rotate with each other; a bottom shell, comprising a left bottom shell and a right bottom shell that can rotate with each other; two motor wheel assemblies, fixed on both sides of the top shell and / or the bottom shell; a rotating mechanism, comprising a central axis and two pairs of hinges, the central axis is fixed below the left top shell and the right top shell, and at least one annular groove is provided at each end of each central axis, a pair of hinges are respectively sleeved at both ends of the central axis, at least one pair of grooves are provided at the position corresponding to the annular groove on the inner side of the hinge, and a ball is provided in each groove, and the ball can move between the groove and the annular groove; the two pairs of hinges are respectively fixed in a first space defined by the left top shell and the left bottom shell and in a second space defined by the right top shell and the right bottom shell. By this, the rotating mechanism of the electric balancing vehicle of the present invention is not only more stable in structure, but also rotates more smoothly.

Description

Technical Field

[0001] The present invention relates to the technical field of electric balancing vehicles, and in particular to a two-wheeled electric balancing vehicle. Background Art

[0002] An electric balance scooter is a means of transportation that relies on electricity to drive and self-balance. Its operating principle is mainly based on a basic principle called dynamic stability. It uses the gyroscope and accelerometer inside the vehicle to detect changes in the vehicle's posture, and uses the control system to accurately drive the motor to make corresponding adjustments to maintain the balance of the system.

[0003] At present, there are mainly two types of electric balance bikes: one-wheeled and two-wheeled. The existing two-wheeled electric balance bikes include left and right bodies for carrying people, and the two bodies can be twisted against each other through a rotating mechanism to drive the vehicle. However, the rotating mechanism is generally implemented by bearings and sleeves. On the one hand, the structure of the bearings and sleeves is not stable enough, and the shaft is prone to breakage. On the other hand, the rotation between the bearings and sleeves is not smooth enough, which will seriously affect the user experience.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0005] In view of the above-mentioned defects, an object of the present invention is to provide an electric balancing vehicle, whose rotating mechanism is not only more stable in structure but also rotates more smoothly.

[0006] In order to achieve the above object, the present invention provides an electric balancing vehicle, comprising:

[0007] The top shell comprises a left top shell and a right top shell which are symmetrically arranged and can rotate relative to each other;

[0008] The bottom shell comprises a left bottom shell and a right bottom shell which are symmetrically arranged and can rotate relative to each other; the left top shell and the left bottom shell are fixedly connected to each other, and the right top shell and the right bottom shell are fixedly connected to each other;

[0009] Two motor wheel assemblies fixed on both sides of the top shell and / or the bottom shell;

[0010] The rotating mechanism includes a central axis and two pairs of hinges, wherein the central axis is fixed below the left top shell and the right top shell, and each of the two ends of the central axis is respectively provided with at least one annular groove, and the two ends of the central axis are respectively sleeved with a pair of hinges, and at least one pair of grooves are provided on the inner side of the hinge corresponding to the position of the annular groove, and each of the grooves is provided with a ball, and the ball can move between the groove and the annular groove; the two pairs of hinges are respectively fixed in a first space defined by the left top shell and the left bottom shell and in a second space defined by the right top shell and the right bottom shell.

[0011] According to the electric balancing vehicle of the present invention, the inwardly facing parts of the left top shell and the right top shell are respectively provided with a left connecting part and a right connecting part, and the central axis is fixed below the left connecting part and the right connecting part.

[0012] The electric balancing vehicle according to the present invention further comprises:

[0013] Two foot pad brackets, respectively fixed to the top surfaces of the left top shell and the right top shell;

[0014] The two foot pads are respectively fixed on the two foot pad brackets.

[0015] The electric balancing vehicle according to the present invention further comprises:

[0016] A control box is fixed below one of the foot pad brackets.

[0017] The electric balancing vehicle according to the present invention further comprises:

[0018] Two main boards are fixed in the left top shell and the right top shell respectively.

[0019] The electric balancing vehicle according to the present invention further comprises:

[0020] At least one battery, wherein the battery is fixed in the left top shell and / or the right top shell via a battery buckle.

[0021] According to the electric balancing vehicle of the present invention, the motor wheel assembly is arranged on both sides of the top shell and can rotate around the top shell.

[0022] According to the electric balancing vehicle of the present invention, the motor-wheel assembly comprises a wheel and a hub motor, and the hub motor is installed in the wheel.

[0023] According to the electric balancing vehicle of the present invention, each pair of hinges comprises an upper hinge and a lower hinge that are detachably connected to each other;

[0024] A first semicircular long groove is provided on the inner side of the upper hinge, and a second semicircular long groove is correspondingly provided on the inner side of the lower hinge, the first semicircular long groove and the second semicircular long groove together form a circular long groove, and the two ends of the central axis are respectively accommodated in the circular long grooves;

[0025] At least one pair of first grooves is provided on the inner side of the upper hinge, and at least one pair of second grooves is correspondingly provided on the inner side of the lower hinge. The first grooves and the second grooves together form the grooves, and the balls are accommodated in the grooves.

[0026] According to the electric balancing vehicle of the present invention, the upper hinge and the lower hinge are provided with at least one positioning structure at the front end of the circular long groove.

[0027] The electric balancing vehicle of the present invention comprises a top shell, a bottom shell, a motor wheel assembly and a rotating mechanism, wherein the rotating mechanism comprises a central axis and two pairs of hinges, wherein the central axis is fixed below a left top shell and a right top shell, and a pair of hinges are respectively sleeved at two ends of the central axis, and the hinges are provided with at least one pair of grooves corresponding to the annular groove on the central axis, and each groove is provided with a ball, and the ball can move between the groove and the annular groove, that is, the spherical surface of the ball can rotate back and forth in the annular groove, and the left top shell and the right top shell fixed on the hinge can also rotate around the rotating mechanism, so that the two parts of the body of the electric balancing vehicle can freely realize relative rotation to realize the balancing effect, and the rotating mechanism of the present invention adopts the structure of hinges, balls and central axis to be more stable and can make the rotation smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional exploded view of the electric balance vehicle of the present invention;

[0029] Figure 2 is a three-dimensional diagram of the electric balancing vehicle of the present invention;

[0030] Figure 3 It is a three-dimensional exploded view of the rotating mechanism of the electric balancing vehicle of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] It should be noted that references to "one embodiment", "embodiment", "example embodiment", etc. in this specification refer to the embodiment described, which may include specific features, structures or characteristics, but not every embodiment must include these specific features, structures or characteristics. In addition, such expressions do not refer to the same embodiment. Furthermore, when describing specific features, structures or characteristics in conjunction with an embodiment, whether or not there is an explicit description, it has been shown that it is within the knowledge of those skilled in the art to combine such features, structures or characteristics into other embodiments.

[0033] In addition, certain words are used in the specification and subsequent claims to refer to specific components or parts. Those with ordinary knowledge in the relevant field should understand that manufacturers can use different nouns or terms to refer to the same component or part. This specification and subsequent claims do not use differences in names as a way to distinguish components or parts, but use differences in the functions of components or parts as the criteria for distinction. "Including" and "including" mentioned throughout the specification and subsequent claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the word "connected" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connection through other devices.

[0034] Figure 1 to Figure 3 The structure of the electric balancing vehicle of the present invention is shown. The electric balancing vehicle 100 at least includes a top shell 10, a bottom shell 20, two motor wheel assemblies 30 and a rotating mechanism 40. The top shell 10 and the bottom shell 20 constitute the main frame of the electric balancing vehicle 100, wherein:

[0035] The top shell 10 includes a left top shell 11 and a right top shell 12 which are symmetrically arranged and can rotate relative to each other. The left top shell 11 and the right top shell 12 are substantially the same in shape and are symmetrically arranged on the left and right sides. The top shell 10 can be made of metal, plastic and other materials. When the electric balance car 100 is in use, the top shell 10 is at the top. Preferably, two arc structures are protruding from the outer ends of the top shell 11 and the right top shell 12, respectively, and the two arc structures are respectively located above the two motor wheel assemblies 30 and cover part of the motor wheel assemblies 30. The arc structures can effectively block the mud and water splashed by the motor wheel assemblies 30 when walking, or prevent them from being involved in foreign objects.

[0036] The bottom shell 20 includes a left bottom shell 21 and a right bottom shell 22 which are symmetrically arranged and can rotate relative to each other. The left bottom shell 21 and the right bottom shell 22 have substantially the same shape and are symmetrically arranged on the left and right sides. The bottom shell 20 can be made of materials such as metal and plastic. When the electric balance car 100 is in use, the bottom shell 20 is at the bottom. The left top shell 11 and the left bottom shell 21 are fixedly connected to each other by screw connection, clamping connection, etc., and the left top shell 11 and the left bottom shell 21 together constitute the left body of the electric balance car 100. The right top shell 12 and the right bottom shell 22 are fixedly connected to each other by screw connection, clamping connection, etc., and the right top shell 12 and the right bottom shell 22 together constitute the right body of the electric balance car 100. The left body and the right body of the electric balance car 100 can freely realize relative rotation.

[0037] The two motor wheel assemblies 30 are fixed on both sides of the top shell 10 and / or the bottom shell 20, and can rotate around the top shell 10 and / or the bottom shell 20. In this embodiment, the motor wheel assembly 30 is arranged on both sides of the top shell 10, and can rotate around the top shell 10. Compared with the existing electric balance vehicle in which the motor wheel assembly 30 is installed on the bottom shell 20, its movement range and speed advantages are obvious. The motor wheel assembly 30 includes a wheel and a hub motor. The hub motor is directly installed in the wheel, making the structure of the electric balance vehicle 100 more compact and saving space. The motor wheel assembly 30 drives the electric balance vehicle 100 forward, backward or turning under the action of the rotating mechanism 40.

[0038] The rotating mechanism 40, such as Figure 2 and Figure 3 As shown, it includes a central axis 41 and two pairs of hinges 42. The central axis 41 is fixed below the left top shell 11 and the right top shell 12, and the central axis 41 remains stationary. Preferably, the central axis 41 and the hinges 42 are made of metal materials such as aluminum alloy. In addition, at least one annular groove 411 is respectively provided at both ends of each central axis 41, and a pair of hinges 42 are respectively sleeved at both ends of the central axis 41. At least one pair of grooves 424 are provided at the position corresponding to the annular groove 411 on the inner side of the hinge 42, and each groove 424 is provided with a ball 43, that is, a pair of balls 43 are corresponding to one annular groove 411, and the ball 43 can move between the groove 424 and the annular groove 411. Since the spherical surface of the ball 43 can rotate back and forth in the annular groove 411, the central axis 41 is fixed, so that the left top shell 11 and the right top shell 12 fixed on the hinge 42 can also rotate back and forth around the rotating mechanism 40. The two pairs of hinges 42 are respectively fixed in the first space defined by the left top shell 11 and the left bottom shell 21 and in the second space defined by the right top shell 12 and the right bottom shell 22. The electronic components of the electric balancing vehicle 100 can be accommodated in the first space and the second space.

[0039] like Figure 1 As shown, the left and right top shells 11 and 12 are preferably provided with left connecting parts 111 and right connecting parts 121 respectively at their inwardly facing parts, and the central axis 41 is fixed below the left and right connecting parts 11 and 12. The left and right connecting parts 11 and 12 are not fixed and can rotate relative to each other.

[0040] When the electric balancing vehicle 100 is in use, since a rotating mechanism 40 is installed in the middle of the left top shell 11 and the right top shell 12, the left top shell 11 and the right top shell 12 can rotate around the rotating mechanism 40. When the user stands on the top shell 10, the motor wheel assembly 30 senses the rotation information of the left top shell 11 and the right top shell 12 through the sensor, that is, the inclination information of the user's body, and then rotates. In this way, the two parts of the body of the electric balancing vehicle 100 of the present invention can freely realize relative rotation under the action of the rotating mechanism 40 to balance the body. The rotating mechanism 40 adopts a structure of a central axis 41, a hinge 42 and a ball 43, which is more stable and can make the rotation smoother.

[0041] Preferably, the two pairs of hinges 42 of the rotating mechanism 40 are fixed in the left top shell 11 and the right top shell 12 respectively. Figure 3 As shown, preferably, each pair of hinges 42 includes an upper hinge 421 and a lower hinge 422 that are detachably connected to each other. The upper hinge 421 and the lower hinge 422 can be detachably connected to each other by screwing, clamping, etc. In this embodiment, two upper hinges 421 and two lower hinges 422 are included, and each upper hinge 421 and a corresponding lower hinge 422 are fixedly connected to each other by a plurality of screws 44 to form two pairs of hinges 42.

[0042] Furthermore, a first semicircular long groove 4211 is provided on the inner side of the upper hinge 421, and a second semicircular long groove 4221 is correspondingly provided on the inner side of the lower hinge 422. When the upper hinge 421 and the lower hinge 422 are connected together, the first semicircular long groove 4211 and the second semicircular long groove 4221 together form a circular long groove, and the central axis 41 is accommodated in the circular long groove.

[0043] Furthermore, at least one pair of first grooves 4212 are provided on the inner side of the upper hinge 421, and at least one pair of second grooves 4222 are provided on the inner side of the lower hinge 422. When the upper hinge 421 and the lower hinge 422 are connected together, the first grooves 4212 and the second grooves 4222 jointly form a groove 424, and the ball 43 is accommodated in the groove 424. Specifically, when assembling the rotating mechanism 40, the ball 43 is first placed in the second groove 4222 of the lower hinge 422, and then the central axis 41 is put on the two lower hinges 422, and the two upper hinges 421 are respectively covered on the two lower hinges 422, and multiple screws 44 are driven into the screw holes on the hinges 42 to fix the upper hinge 421 and the lower hinge 422, so that the central axis 41 can be fixed to the center of the rotating mechanism 40. The spherical surface of the ball 43 and the annular groove 411 of the central axis 41 can swing forward and backward in a plane to perform a balancing effect.

[0044] In this embodiment, the rotating mechanism 40 includes four balls 43, and an annular groove 411 is respectively provided at both ends of the central shaft 41, and each annular groove 411 corresponds to two balls 43. In fact, two annular grooves 411 can be respectively provided at both ends of the central shaft 41, and each annular groove 411 corresponds to two balls 43, that is, there are a total of eight balls 43. In the present invention, N annular grooves 411 can be respectively provided on the central shaft 41, N ≥ 1, each annular groove 411 corresponds to two balls 43, and the number of balls 43 is 4N. The more the number of annular grooves 411 and balls 43, the smoother the rotation of the rotating mechanism 40.

[0045] Preferably, the upper hinge 421 and the lower hinge 422 are provided with at least one positioning structure 423 at the front end of the circular long groove. Figure 3 As shown, the positioning structure 423 is preferably a positioning column. The positioning structure 423 limits the central axis 41 in the circular long groove, which can prevent the rotating mechanism 40 from deviating from the activity trajectory, so that it can swing left and right smoothly.

[0046] Preferably, the electric balancing vehicle 100 further includes:

[0047] The two foot pad brackets 50 are respectively fixed to the top surfaces of the left top shell 11 and the right top shell 12 by means of screw connection, clamping connection, etc.

[0048] The two foot pads 60 are respectively fixed to the two foot pad brackets 50 by screw connection, clamping connection, etc. The foot pads 60 are preferably made of silicone. In order to make the user stand more steadily during the walking process, the upper surface of the foot pad 60 can be provided with a friction strip to increase the friction.

[0049] Two controllers 70 are fixed under the two foot pad brackets 50 by screw connection, clamping connection, etc. The controller 70 is electrically connected to multiple sensors, power supplies and wheel hub motors. The controller controls the corresponding wheel hub motors to drive the corresponding wheels to rotate according to the sensing signals transmitted by the sensors. The sensors may include gyroscopes, induction switches, acceleration sensors, etc. The sensors may be arranged in the left top shell 11 and the right top shell 12, or may be integrated into a main board.

[0050] Preferably, the electric balancing vehicle 100 further includes:

[0051] The two main boards 80 are fixed in the left top shell 11 and the right top shell 12 respectively by screw connection, clamp connection, etc. The main board 80 preferably adopts PCBA (Printed Circuit Board Assembly). In a specific embodiment, the two main boards 80 are fixed on the screw columns of the left top shell 11 and the right top shell 12 respectively and locked with screws.

[0052] At least one battery 91, the battery 91 is fixed in the left top shell 11 and / or the right top shell 12 through a battery buckle 92. In a specific embodiment, the battery 91 includes a first battery, a second battery and a third battery, the first battery and the third battery are locked on the screw column of the right top shell 12 through the battery buckle 92, and the second battery is locked on the screw column of the left top shell 11 through the battery buckle 92.

[0053] In fact, the electric balance vehicle 100 of the present invention may also include a switch unit for opening and closing, a charging interface for charging, a prompt board for displaying the working status, decorative lights for aesthetics, and other electronic components, which will not be elaborated here.

[0054] When the electric balancing vehicle 100 of the present invention is in use, the user uses the force of the feet to drive a part or two parts of the vehicle body to twist together, so that the sensor sends a sensing signal to the controller 70. The controller 70 drives the motor wheel assembly 30 to operate according to the internal control program, so that the user can turn, move forward or backward, thereby realizing foot control, which is more convenient to use and more flexible to control.

[0055] In summary, the electric balancing vehicle of the present invention includes a top shell, a bottom shell, a motor wheel assembly and a rotating mechanism, wherein the rotating mechanism includes a central axis and two pairs of hinges, the central axis is fixed below the left top shell and the right top shell, and a pair of hinges are respectively sleeved on both ends of the central axis, and the hinge is provided with at least one pair of grooves corresponding to the annular groove on the central axis, and each groove is provided with a ball, and the ball can move between the groove and the annular groove, that is, the spherical surface of the ball can rotate back and forth in the annular groove, and the left top shell and the right top shell fixed on the hinge can also rotate around the rotating mechanism, so that the two parts of the body of the electric balancing vehicle can freely realize relative rotation to achieve a balancing effect, and the rotating mechanism of the present invention adopts a structure of hinges, balls and central axis to be more stable and can make the rotation smoother.

[0056] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An electric balancing vehicle, characterized in that: include: The top shell comprises a left top shell and a right top shell which are symmetrically arranged and can rotate relative to each other; The bottom shell comprises a left bottom shell and a right bottom shell which are symmetrically arranged and can rotate relative to each other; the left top shell and the left bottom shell are fixedly connected to each other, and the right top shell and the right bottom shell are fixedly connected to each other; Two motor wheel assemblies fixed on both sides of the top shell and / or the bottom shell; The rotating mechanism comprises a central axis and two pairs of hinges, wherein the central axis is fixed below the left top shell and the right top shell, and at least one annular groove is respectively provided at both ends of each central axis, and a pair of hinges are respectively sleeved at both ends of the central axis, and at least one pair of grooves are provided at positions corresponding to the annular grooves on the inner side of the hinges, and a ball is provided in each groove, and the ball can move between the groove and the annular groove; the two pairs of hinges are respectively fixed in a first space defined by the left top shell and the left bottom shell and in a second space defined by the right top shell and the right bottom shell; Each pair of hinges comprises an upper hinge and a lower hinge that are detachably connected to each other; A first semicircular long groove is provided on the inner side of the upper hinge, and a second semicircular long groove is correspondingly provided on the inner side of the lower hinge, the first semicircular long groove and the second semicircular long groove together form a circular long groove, and the two ends of the central axis are respectively accommodated in the circular long grooves; At least one pair of first grooves is provided on the inner side of the upper hinge, and at least one pair of second grooves is correspondingly provided on the inner side of the lower hinge. The first grooves and the second grooves together form the grooves, and the balls are accommodated in the grooves.

2. The electric balancing vehicle according to claim 1, characterized in that: The inwardly facing parts of the left top shell and the right top shell are respectively provided with a left connecting part and a right connecting part, and the central axis is fixed below the left connecting part and the right connecting part.

3. The electric balancing vehicle according to claim 1, characterized in that: Also includes: Two foot pad brackets, respectively fixed to the top surfaces of the left top shell and the right top shell; The two foot pads are respectively fixed on the two foot pad brackets.

4. The electric balancing vehicle according to claim 3, characterized in that: Also includes: A control box is fixed below one of the foot pad brackets.

5. The electric balancing vehicle according to claim 1, characterized in that: Also includes: Two main boards are fixed in the left top shell and the right top shell respectively.

6. The electric balancing vehicle according to claim 1, characterized in that: Also includes: At least one battery, wherein the battery is fixed in the left top shell and / or the right top shell via a battery buckle.

7. The electric balancing vehicle according to claim 1, characterized in that: The motor wheel assembly is arranged on both sides of the top shell and can rotate around the top shell.

8. The electric balancing vehicle according to claim 1, characterized in that: The motor-wheel assembly comprises a wheel and a hub motor, wherein the hub motor is installed in the wheel.

9. The electric balancing vehicle according to claim 1, characterized in that: The upper hinge and the lower hinge are provided with at least one positioning structure at the front end of the circular long groove.

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