CN204952213U - Electrodynamic balance car - Google Patents

Abstract

The utility model relates to an electric balance car. The inner cover, the inner cover includes a first inner cover and a second inner cover which are arranged symmetrically and can rotate with each other, and the sides of the first inner cover and the second inner cover facing the user are provided with notches; two pedals , are respectively arranged in the gaps of the first inner cover and the second inner cover; two wheels respectively extend from the opposite sides of the inner cover, are fixed on both sides of the inner cover and can rotate around the inner cover , the wheel further includes a fixed shaft extending from the central position of the wheel and fixed on the inner cover; two hub motors are respectively arranged in the two wheels; the power supply is fixed on the first inner cover, and Close to the second inner cover; two circuit boards integrated with multiple sensors are respectively fixed on the first inner cover and the second inner cover, wherein the circuit board fixed on the first inner cover is fixed on the first inner cover away from the second inner cover The position of the inner cover; the controller is fixed on the second inner cover, the controller is electrically connected to the multiple sensors, the power supply and the hub motor, and the controller controls the corresponding hub motor to drive according to the sensing signal transmitted by the sensor The corresponding wheels turn.

Description

electric balance car

technical field

The utility model relates to an electric balance two-wheeled vehicle. Two platforms for carrying people can twist each other and drive to walk.

Background technique

Electric balance car, also known as somatosensory car and thinking car, its operating principle is mainly based on a basic principle called "dynamic stability", using the gyroscope and acceleration sensor inside the car body to detect the attitude of the car body Changes, and use the servo control system to precisely drive the motor to make corresponding adjustments to maintain the balance of the system.

Current electric balance vehicles generally have an operating lever; the user stands on the pedal platform of the balancing vehicle and operates the operating lever to move forward, backward and stop. Such control is also called "manual control". At present, the pedal platform of the self-balancing vehicle is generally a plate-shaped flat plate, which is always kept in a horizontal state during use and cannot be rotated relative to each other, so it is impossible for the user to control the self-balancing vehicle only by using the feet.

Utility model content

In order to overcome at least one deficiency of the prior art, the utility model provides an electric balance car.

In order to achieve the above purpose, the utility model provides an electric balance car, comprising:

An inner cover, the inner cover includes a first inner cover and a second inner cover which are arranged symmetrically and are rotatable with each other, and the sides of the first inner cover and the second inner cover facing the user are both provided with notches;

Two pedals are respectively arranged in the gaps of the first inner cover and the second inner cover;

Two wheels extend from opposite sides of the inner cover respectively, are fixed on both sides of the inner cover and can rotate around the inner cover, and the wheels further include a fixed shaft extending from the center of the wheel, and fixed on the inner cover;

Two in-wheel motors are arranged in the two wheels respectively;

The power supply is fixed on the first inner cover and is close to the second inner cover;

Two circuit boards integrated with multiple sensors are respectively fixed on the first inner cover and the second inner cover, wherein the circuit board fixed on the first inner cover is fixed at a position where the first inner cover is far away from the second inner cover; the two integrated Circuit boards with multiple sensors are respectively fixed on the lower surfaces of the first inner cover and the second inner cover.

The controller is fixed on the second inner cover, the controller is electrically connected to the plurality of sensors, the power supply and the hub motor, and the controller controls the corresponding hub motor to drive the corresponding wheel to rotate according to the sensing signal transmitted by the sensor.

According to an embodiment of the present invention, it further includes a connecting piece connecting the inner cover and the wheel, the connecting piece is fixed to the inner cover, and the wheel is fixedly connected to the connecting piece through a fixed shaft.

According to an embodiment of the present utility model, it further includes a U-shaped fixing piece fixed on the inner cover, and the upper end of the U-shaped fixing piece is provided with two U-shaped openings on the induction switch one by one corresponding to the above-mentioned The through holes communicating with the accommodating chambers are respectively provided with blocking pieces in each of the through holes, and trigger columns corresponding to the blocking pieces are respectively set on each pedal, and the bottom of the U-shaped fixing piece has One opening, when the user stands on the pedal so that the trigger column drives the blocking members under pressure to extend into the U-shaped opening one by one.

According to an embodiment of the present invention, it further includes a heat dissipation plate disposed on the second inner cover, and the circuit board and the controller are fixed on the second inner cover through the heat dissipation plate.

According to an embodiment of the present invention, it further includes a top cover and a bottom cover that can be fixed to each other, the inner cover is fixed between the top cover and the bottom cover, and the top cover includes symmetrically arranged and mutually rotatable The first top cover and the second top cover, the bottom cover includes the first bottom cover and the second bottom cover which are symmetrically arranged and can rotate with each other, and the power supply, connectors, circuit boards and controllers are all arranged on the between the bottom cover and the inner cover.

According to an embodiment of the present invention, the first inner cover and the second inner cover are rotatably connected through a rotating mechanism, and the rotating mechanism includes a shaft sleeve, and the opposite ends of the shaft sleeve respectively extend into the The first inner cover and the second inner cover, the first inner cover and the second inner cover have a cylindrical cylinder body corresponding to the shaft sleeve, and the first inner cover and the second inner cover can be wound around The bushing rotates.

According to an embodiment of the present utility model, the rotating mechanism further includes two bearings and two snap springs, the bearings and the bushing are installed in the barrel through the snap springs from the outside to the inside, and the two bearings are respectively fixed on the In the cylindrical body of the first inner cover and the second inner cover, the shaft sleeve is rotatably fixed in two bearings.

According to an embodiment of the present invention, the U-shaped fixing part is arranged under the inner cover, and the U-shaped fixing part and the inner cover are connected through a detachable structure.

According to an embodiment of the present invention, the blocking member includes a cylindrical body, an elastic annular skirt is provided on the side of the cylindrical body, and an annular positioning groove is provided between the U-shaped fixing member and the inner cover. The elastic annular The outer edge of the skirt is fixed in the annular positioning groove.

According to an embodiment of the present invention, the upper surface of the pedal has friction strips spaced apart from each other.

According to an embodiment of the present invention, the first top cover and the second top cover respectively have notches, and the first inner cover and the second inner cover respectively have recesses at positions corresponding to the notches, and the notches and the recesses are combined to form a pedal cavity to accommodate the pedals.

According to an embodiment of the present invention, the inner cover has a cylindrical body, and the shaft sleeve and the bearing are installed in the body through a snap spring.

According to an embodiment of the present invention, the electric balance vehicle also has a decorative light, which is arranged on the bottom cover.

According to an embodiment of the utility model, the top cover also has two prompting boards, the two prompting boards are electrically connected to the controller, one of the prompting boards displays the remaining power of the power supply, and the other prompting board displays the working status of the electric balance car .

According to an embodiment of the present invention, the sensor includes a gyroscope, an acceleration sensor and an induction switch. The induction switch senses whether the user is standing on the electric balance car to turn it on or off. The controller receives the sensing signal of the induction switch to control the hub motor Whether it is working, the controller receives the sensing signals of the acceleration sensor and the gyroscope to control whether the hub motor changes state.

According to an embodiment of the utility model, the inductive switch is an infrared photoelectric sensor.

According to an embodiment of the present invention, the electric balance car further includes a charging interface, and the charging interface is arranged on the bottom cover.

According to an embodiment of the present invention, the electric balance car further includes an interface cover, and the interface cover covers the charging interface.

According to an embodiment of the present invention, the electric balance car also includes a limit shaft, which is arranged in the middle of the first inner cover and the second inner cover, and the length of the limit shaft in the second inner cover is longer than that in the first inner cover. length within.

According to an embodiment of the present invention, the top cover has two arc-shaped protrusions, and the two arc-shaped protrusions are respectively located above the two wheels and cover a part of the wheels.

According to an embodiment of the present invention, the width of the arc-shaped protrusion is greater than the width of the wheel.

According to an embodiment of the present invention, the top cover and the bottom cover are made of plastic, and the inner cover is made of aluminum alloy.

According to an embodiment of the present invention, the electric balance car further includes a remote controller, and the controller receives control signals sent by the remote controller.

According to an embodiment of the present invention, the controller has a storage unit and a correction unit, the storage unit stores the initial balance state of the electric balancing car, and the correction unit corrects the current balance state of the electric balancing car.

To sum up, the utility model is uniquely provided with an inner cover between the top cover and the bottom cover of the electric balance car, which makes the whole structure of the electric balance car more firm, and at the same time provides protection for the electronic components inside the car body. In addition, a space for fixing electronic components is formed between the inner cover and the bottom cover, making the installation of the electronic components more compact. By setting the power supply and the controller in two parts of the car body, one power supply and one controller can control two in-wheel motors at the same time, which makes the assembly easier, the wiring more convenient, and saves space. The weight on both sides of the body is more balanced, increasing the self-balancing of the body. The wheels of the utility model are located at the edges of the left and right sides of the car body, so that larger-sized wheels can be used, and compared with the existing balance car whose wheels are installed at the bottom of the bottom cover, its movement stroke and speed advantages are obvious. In addition, the utility model adopts the hub motor, and the motor is directly installed in the wheel, so that the structure of the electric self-balancing vehicle is more compact. Compared with the self-balancing vehicle with a separate motor, it saves space and the whole device is more compact.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

Figure 1 is a sectional view of an improved electric balance car provided according to the first embodiment of the present invention;

Fig. 2 is an exploded schematic view of the improved electric balance car provided according to the first embodiment of the present invention;

Fig. 3 is a schematic diagram of an improved electric balance car provided according to the first embodiment of the present invention;

Fig. 4 is a schematic diagram of another angle of the improved electric balance car provided according to the first embodiment of the present invention;

Fig. 5 is a partial functional block diagram of the improved electric balance car provided according to the first embodiment of the present invention;

Fig. 6 is a schematic cross-sectional view of a transverse section provided according to the first embodiment of the present invention.

Fig. 7 is a partial structural schematic diagram provided according to the first embodiment of the present invention.

Fig. 8 is a schematic diagram of the inductive switch provided according to the first embodiment of the present invention.

detailed description

Please refer to Figures 1-8 together. The electric balance car 100 in this embodiment includes a top cover 1, an inner cover 2, a bottom cover 3, two hub motors 4, two wheels 50, a rotating mechanism 60, and multiple sensors 80 , power supply 81 and controller 82. The in-wheel motor 4 is installed on opposite sides of the inner cover 2 . The inner cover includes a first inner cover and a second inner cover which are arranged symmetrically and are rotatable relative to each other. Notches are provided on the sides of the first inner cover and the second inner cover facing the user. The power supply is fixed on the first inner cover and is close to the second inner cover; two circuit boards integrated with multiple sensors are respectively fixed on the first inner cover and the second inner cover, wherein the circuit boards fixed on the first inner cover The board is fixed on the first inner cover away from the second inner cover; two circuit boards integrated with multiple sensors are respectively fixed on the lower surfaces of the first inner cover and the second inner cover.

The controller is fixed on the second inner cover, the controller is electrically connected to the plurality of sensors, the power supply and the hub motor, and the controller controls the corresponding hub motor to drive the corresponding wheel to rotate according to the sensing signal transmitted by the sensor.

The vehicle also includes a heat dissipation plate arranged on the second inner cover, and the circuit board and the controller are fixed on the second inner cover through the heat dissipation plate.

The top cover 1 includes a first top cover 11 and a second top cover 12 which are arranged symmetrically and are rotatable relative to each other. When the improved electric balance car 100 is in the use state, the top cover 1 is at the top. The first top cover 11 can be a left top cover, and the second top cover 12 can be a right top cover. However, the present utility model does not make any limitation thereto. When the improved electric balance car 100 is turned horizontally by 180 degrees, the first top cover 11 becomes the right top cover, and the second top cover 12 becomes the left top cover.

The shapes of the first top cover 11 and the second top cover 12 are basically the same, and the first top cover 11 and the second top cover 12 can rotate relative to each other under the action of the rotating mechanism 60 . The outward parts of the first top cover 11 and the second top cover 12 respectively extend two arc-shaped protrusions 15 , and the two arc-shaped protrusions 15 are respectively located above the two wheels 50 and cover part of the wheels 50 . In the first embodiment, the width W1 of the arc-shaped protrusion 15 is greater than the width W2 of the wheel 50 , so that the arc-shaped protrusion 15 can completely cover the top of the wheel 50 . Through this arrangement, the arc-shaped protrusion 15 can effectively block the muddy water splashed by the wheel 50 when walking. At the same time, it also avoids the possibility that the hanging objects (such as the long belt of the user's clothes) are accidentally involved in the wheels during the running process and cause the user to be injured, which improves the safety of the self-balancing vehicle 100 . However, the present utility model does not make any limitation thereto. For example, in other embodiments, the arc-shaped protrusion 15 can also adopt a design that is narrow at both ends and wide at the middle.

The inward parts of the first top cover 11 and the second top cover 12 are connected to form an "X" shape, and there are two reminder boards 13 at the innermost positions. The prompt boards 13 are electrically connected to the controller 82, one of the prompt boards 13 displays the remaining power of the power supply 81, and the other prompt board 13 displays the working status of the improved electric balance car 100, and in addition, a charging interface is provided on the power supply 81 87. In practical application, each prompt board 13 has a transparent cover 14 to protect the prompt board 13 and facilitate the user to read. The prompt board 13 showing the working status can display different icons (such as battery icons, etc.) according to different modes of the improved electric balance car 100, such as low-speed mode, high-speed mode, normal system status, lock-up status, etc., so as to let the user Intuitively and clearly understand the working state of the balance car 100 .

The bottom cover 3 corresponds to the top cover 1 and is fixed by cooperation with each other. The fixing method of the bottom cover 3 and the top cover 1 is not limited, and in practical application, the top cover 1 and the bottom cover 3 can be fixed together by buckles, screws, slide grooves and other fixing methods. The bottom cover 3 includes a first bottom cover 31 and a second bottom cover 32 which are arranged symmetrically and are rotatable relative to each other. The shapes of the first bottom cover 31 and the second bottom cover 32 are basically the same, and the first bottom cover 31 and the second bottom cover 32 can rotate relative to each other under the action of the rotating mechanism 60 . The inward parts of the first bottom cover 31 and the second bottom cover 32 are connected to form an "X" shape. Likewise, the first bottom cover 31 can be a left bottom cover, and the second bottom cover 32 can be a right bottom cover. When the improved electric balance car 100 is turned horizontally by 180 degrees, the first bottom cover 31 becomes the right bottom cover, and the second bottom cover 32 becomes the left bottom cover.

In this embodiment, the bottom cover 3 is provided with two decorative lamps 33, which can also play a lighting role while increasing the appearance. The shell of the decorative lamp 33 can be set to be transparent to transmit light. In practical applications, the decorative lights 33 are electrically connected to the connection controller 82, so that under the control of the controller 82, different display states can be used to reflect and improve the driving state of the electric balance car 100 to remind people around, which improves the user experience. security. For example, when the self-balancing car 100 moves forward, the decorative light 33 can be always on; when the self-balancing car 100 moves backward, the decorative light 33 can flash; The decorative light 33 on the right may not be on; when the self-balancing vehicle 100 turns right, the decorative light 33 on the right may be blinking or always on, and the decorative light 33 on the left may not be on. The utility model does not make any limitation on the lighting state of the decorative lamp 33 . The inner cover 2 is arranged between the top cover 1 and the bottom cover 3, and together with the top cover 1 and the bottom cover 3 forms the frame of the improved electric balance vehicle 100 of the present invention, when the top cover 1 and the bottom cover 3 are fixed together Finally, the inner cover 2 will be wrapped in the inside of the car body without being exposed. When the improved electric balance vehicle 100 is in the use state, the bottom cover 3 is at the bottom. The left and right sides of the inner cover 2 are fixed with hub motors 4 mounted longitudinally, and a rotating mechanism 60 is installed in the middle of the inner cover 2 and can rotate around the rotating structure 60 . That is, the opposite ends of the inner cover 2 are fixedly connected with the in-wheel motor 4 , and the inner cover 2 is rotated by the rotating structure 60 . When the user is standing on the inner cover 2 , the in-wheel motor 4 senses the rotation information of the inner cover 2 through the sensor 80 , that is, the inclination information of the user's body, so as to rotate.

Further, the inner cover 2 includes a first inner cover 21 and a second inner cover 22 arranged symmetrically. The shapes of the first inner cover 21 and the second inner cover 22 are basically the same, and the first inner cover 21 and the second inner cover 22 can rotate relative to each other under the action of the rotating mechanism 60 . In other embodiments, the first inner cover 21 and the second inner cover 22 may be separate and independent components. Likewise, the first inner cover 21 can be a left inner cover, and the second inner cover 22 can be a right inner cover. When the improved electric balancing vehicle 100 is turned horizontally by 180 degrees, the first inner cover 21 becomes the right inner cover, and the second inner cover 22 becomes the left inner cover.

In this embodiment, the improved electric balance bike 100 further includes two pedals 5 , and the two pedals 5 are respectively fixed to the top cover 1 and the inner cover 2 . In order to allow the user to stand more stably during walking, the upper surface of the pedal 5 of the self-balancing vehicle 100 in this embodiment has friction strips 51 spaced apart from each other to increase the friction force. In order to fix the pedal 5 and reduce the volume of the self-balancing vehicle 100 as a whole, the first top cover 11 and the second top cover 12 have gaps 16 respectively, and the first inner cover 21 and the second inner cover 22 have gaps at positions corresponding to the gaps 16. The recess 23 , the notch 16 and the recess 23 combine with each other to form a pedal cavity (not shown in FIG. 2 ) for accommodating the pedal 5 . In practical application, the notch 16 is a through hole on the top cover 1 , and the recess 23 is a blind hole on the inner cover 2 , and the shapes of the notch 16 and the recess 23 match with the pedal 5 . The pedal cavity is an accommodating space formed by the combination of the notch 16 and the recess 23 and has a bottom surface and side walls.

An elastic U-shaped outer edge is extended outward from the pedal 5, and the opening of the elastic U-shaped outer edge faces the top cover 1, while the gap 16 of the ground top cover 1 extends a flange facing the inner cover 2, The flange corresponds to the elastic U-shaped outer edge. When the top cover 1 and the inner cover 2 are installed together, the flange is embedded into the U-shaped outer edge, so that the pedal 5 is limited between the top cover 1 and the inner cover 2, and it is not easy to disengage from the balance car 100 , and the top cover 1 is sealed by the elastic U-shaped outer edge, so that external impurities or water droplets can penetrate into the balance car 100 . It can be understood that, in order to enhance the sealing performance of the self-balancing vehicle 100, the flange can be fixed in the U-shaped outer edge, and the fixing method is not limited, and can include glue bonding, bonding after hot pressing and melting. further,

The pedal 5 extends a plurality of trigger columns 5a along the direction close to the inner cover 2, and the inner cover 2 is provided with a plurality of blocking members 86 corresponding to the trigger columns, when the user is not standing on the pedal 5 , the trigger column and the blocking member 86 are in a disconnected state, and the in-wheel motor 4 is in a stop state, and when the user stands on the pedal 5, the trigger column and the blocking member 86 In the combined state, the in-wheel motor 4 is in the working open state and receives the user's body inclination information. In use, the pedal 5 directly carries the user. The inner cover 2 is used as the skeleton inside the balance car 100, and indirectly bears the user's weight transmitted by the pedal 5, avoiding the electronic components between the inner cover 2 and the bottom cover 3 being squeezed by the user's weight. Therefore, the entire improved electric balance vehicle 100 will be more firm and strong, and also protect the electronic components therein, making the improved electric balance vehicle 100 run more stably and have a longer service life. Preferably, the inner cover 2 is made of aluminum alloy, so the strength is higher and the structure is more stable. Top cover 1 and bottom cover 3 are plastics, while lightening the weight of the whole car body, it is also convenient to carry out processes such as spraying and coloring on the appearance of the car body, and play the effect of antifouling and waterproof. The improved electric balance car in the prior art, because there is no inner cover 2, the internal electronic components directly bear the weight of the user, and because of the shaking generated when the balance car is moving, it is easy to automatically cut off the power. prone to falls. The improved electric balance car 100 of the utility model just solves this technical problem.

The rotating mechanism 60 is fixed in the middle of the first inner cover 21 and the second inner cover 22 . In the first embodiment, the rotating mechanism 60 includes a shaft sleeve 61, two bearings 62 and two snap springs 63, and the two ends of the shaft sleeve 61 are respectively fixed on the inner ends of the first inner cover 21 and the second inner cover 22, The bearing 62 is fixed on the axle sleeve 61 and fixed on the inner cover 2 by a jumper 63 , so that the left and right inner covers of the inner cover 2 can rotate under the cooperation of the rotating mechanism 60 . By providing such a rotating mechanism 60, the two parts of the body of the improved electric balancing vehicle 100 can freely realize relative rotation.

In order to install the above-mentioned rotating mechanism 60, a cylindrical barrel 24 can be designed at the inward end of the first inner cover 21 and the second inner cover 22, and the shaft sleeve 61 and the bearing 62 are installed on the inner end of the first inner cover 21 and the second inner cover 22 through a snap ring 63 from the outside to the inside. Inside the barrel 24. In other words, the opposite ends of the first inner cover 21 and the second inner cover 22 are provided with a cylindrical body 24 , and the bearing 62 is arranged in the cylindrical body 24 and can be opposite to the inner wall of the cylindrical body 24 Rotation means that the first inner cover 21 and the second inner cover 22 are rotatably connected through the bearing 62 . The bushing 61 can be arranged between the bearings 62 to make the bearings 62 rotate with less friction. In order to limit the axial movement of the bearing 62 along the sleeve 61 , opposite ends of the bearing 62 protrude from the barrel 24 and are fixed by a snap spring 63 . In order to limit the relative rotation angle between the first inner cover 21 and the second inner cover 22, the improved electric balance car 100 further includes a limit shaft 7 installed between the first inner cover and the second inner cover, Wherein, one end of the limiting shaft is fixed to the first inner cover, and the other end extends into the second inner cover, and the second inner cover is provided with a limiting groove 221 corresponding to the limiting shaft. The cooperation of the limiting groove can limit the maximum rotation angle between the first inner cover and the second inner cover. In addition, the wheel includes a hub motor, a wheel body and a tire, the hub motor is sealed and fixed in the wheel body, and the tire is arranged around the wheel body; the improved electric balance car further includes a connecting piece 41 connecting the inner cover and For the wheel, the connecting piece is fixed to the inner cover, and the wheel further includes a fixed shaft extending from the central position of the wheel and fixedly connected with the connecting piece. The fixed shaft is a hollow shaft. When the first inner cover 21 and the second inner cover 22 rotate relative to each other, through the cooperation of the limiting shaft 7 and the limiting groove, the limiting groove can limit the distance between the first inner cover 21 and the second inner cover 22. The maximum rotation angle between. The limit groove is an arc limit groove.

The two wheels 50 are respectively rotatably fixed on both sides of the inner cover 2 , and the two in-wheel motors 4 are respectively fixed in the two wheels 50 . In-wheel motor 4, also known as a built-in wheel motor, integrates power into the wheel hub, so a large number of transmission components are omitted, making the structure of the self-balancing vehicle simpler, better space utilization, and improved transmission efficiency. Since the in-wheel motor 4 has the characteristics of independent driving of a single wheel, differential steering similar to that of a crawler vehicle can be realized through different rotation speeds or even reverse rotation of the left and right wheels 50, greatly reducing the turning radius of the vehicle, and in special cases, it can almost be achieved in situ turn.

The multiple sensors 80 are arranged between the bottom cover 3 and the inner cover 2 and fixed on the inner cover 2 . Specifically, half of the sensors 80 are disposed between the first bottom cover 31 and the first inner cover 21 , and the other half of the sensors 80 are disposed between the second bottom cover 32 and the second inner cover 22 . The power supply 81 is fixed between the first bottom cover 31 and the first inner cover 21 . The controller 82 is fixed between the second bottom cover 32 and the second inner cover 22 . The utility model only needs one power source 81 and one controller 82 to control two hub motors 4 at the same time, the assembly is simpler, the wiring is more convenient, and it is also convenient for the improved electric balance car 100 to be returned to the factory for maintenance after it is sold. Moreover, the power supply 81 and the controller 82 are respectively arranged in the two halves of the vehicle body, which saves space and makes the structure of the entire vehicle body more compact. The connecting piece 41 includes a connecting frame connected with the inner cover and a connecting shaft connected with the wheel, the connecting frame and the connecting shaft are circumferentially fixed, and the connecting shaft can rotate relative to the wheel. A circumferential positioning structure is arranged between the connecting frame and the connecting shaft. The circumferential positioning structure includes a positioning plane arranged on the connecting shaft, and a positioning surface coincident with the positioning plane is provided on the connecting frame.

In this embodiment, the sensor 80 includes a gyroscope 83 , a sensor switch 84 and an acceleration sensor 85 . In practical applications, in order to make the internal components of the whole device modular, the acceleration sensor 85 and the gyroscope 83 are arranged on the same circuit board, and the circuit board is fixed on the inner cover 2 . In FIG. 2, only the front of the circuit board can be seen due to viewing angle, and the acceleration sensor 85 and the gyroscope 83 (indicated by dotted lines in FIG. 2 ) are arranged on the back of the circuit board in actual use. The controller 82 is electrically connected to a plurality of sensors 80 , a power source 81 and the in-wheel motor 4 , and the controller 82 controls the corresponding in-wheel motor 4 to drive the corresponding wheel 50 to rotate according to the sensing signal transmitted by the sensor 80 .

The sensor switch 84 senses whether the user stands on the improved electric balance car 100 to turn it on or off, and the controller 82 receives the sensing signal of the sensor switch 84 (that is, the signal of turning on or off) to control whether the in-wheel motor 4 works, and the controller 82 receives The acceleration sensor 85 and the gyroscope 83 sense signals to control whether the in-wheel motor 4 changes state. In the first embodiment, the sensor switch 84 is an infrared photoelectric sensor. However, the present utility model does not make any limitation thereto. In other embodiments, the inductive switch 84 can be a microwave inductive switch, an ultrasonic inductive switch or any other inductive switch capable of achieving the same function. In this embodiment, the induction switch 84 has an opening facing the blocking member 86, and the opposite side walls of the opening are the infrared induction emitting area and the receiving area respectively. When the user steps on the pedal 5, the blocking member 86 extends into the When entering the opening of the induction switch 84, the blocking member 86 will block the infrared sensing area of the infrared photoelectric sensor, so the infrared photoelectric sensor is turned on. The controller 82 receives the start signal sent by the sensor switch 84 , so it drives the in-wheel motor 4 to work.

The balance bikes in the prior art all start to rotate when the wheels are turned on, and the user cannot easily stand on the balance bike. After the user got off the balance bike, the wheels did not stop rotating, and the whole wheel would stop rotating only after pressing the power switch, which had a very large potential danger and was very inconvenient to use. The improved electric balance car 100 of this embodiment does not work as soon as the hub motor 4 is turned on, but drives the wheel 50 by sensing whether the user is standing on the pedal 5, avoiding the blind rotation of the balance car in the prior art, Greatly improved the security of use. On the other hand, the improved electric balance car 100 of this embodiment realizes automatic balance by sensing pedaling instead of balancing when the power is turned on, which can ensure the safety of the car body, and the rotation of the car body is small, avoiding the balance after the power is turned on in the prior art. Immediate self-balancing will cause the balance point of the car body to be wrong, and the car body will rotate, causing the user to be unable to balance.

The acceleration sensor 85 and the gyroscope 83 jointly detect the motion state of the self-balancing car 100 , such as detecting the acceleration and angular velocity of the self-balancing car 100 . The controller 82 drives the in-wheel motor 4 according to the sensing signals transmitted by the acceleration sensor 85 and the gyroscope 83, so as to determine whether the self-balancing vehicle 100 will change direction or speed. The detection technology of the acceleration sensor 85 and the gyroscope 83 is the prior art, and will not be repeated here.

In this embodiment, the improved electric balance vehicle 100 further includes a U-shaped fixing member 9 . It includes a U-shaped fixing piece fixed on the inner cover. The upper end of the U-shaped fixing piece is provided with a through hole corresponding to the two U-shaped openings on the sensor switch and communicating with the accommodating cavity. The two through holes are respectively provided with blocking pieces, and each pedal is respectively provided with a trigger column corresponding to the blocking pieces one by one, and the bottom of the U-shaped fixing piece has an opening, when the user stands on the pedal Thus, the trigger column drives the blocking members one by one into the U-shaped opening under pressure. Both the sensor 80 and the blocking member 86 are fixed on the U-shaped fixing member 9 . In order to make the installation of the electronic components of the whole device modular, which is convenient for assembly, wiring and later maintenance, the U-shaped fixing part 9 is fixed on the inner cover 2 through its side wall, and a sensor 80 and a blocking part 86 are provided The circuit board is arranged at the bottom of the U-shaped fixture 9, and the inductive switches 84 of the sensor 80 are respectively arranged on the two ends of the circuit board of the U-shaped fixture 9 close to the side walls of the U-shaped fixture 9, so that the inductive switches 84 can be Corresponds to the trigger column of pedal 5. Meanwhile, the bottom of the U-shaped fixing member 9 has an opening for passing the external wires of the circuit board. The U-shaped fixing part is arranged under the inner cover, and the U-shaped fixing part and the inner cover are connected through a detachable structure. The blocking member includes a columnar body, an elastic annular skirt is provided on the side of the columnar body, and an annular positioning groove is provided between the U-shaped fixing member and the inner cover, and the outer edge of the elastic annular skirt is fixed in the annular positioning groove middle.

In use, the user uses the force of the foot to drive a part or two parts of the car body to twist together, and then the sensor 80 sends a sensing signal to the controller 82, and the controller 82 drives the in-wheel motor 4 to run according to the internal control program, and then It allows the user to turn, move forward or backward, thus realizing "foot control", which is more convenient to use and more flexible to control.

How the controller 82 of the present utility model controls the self-balancing vehicle to reach the self-balancing state and controls the wheels 50 to move forward, backward or turn belongs to the prior art, and will not be repeated here. For details, please refer to the currently published control methods of self-balancing vehicles and the control technologies adopted by various self-balancing vehicle manufacturers. For example, Chinese patent application No. 201320050547.3, the patent name is a balance control device for an intelligent self-balancing vehicle and an intelligent self-balancing vehicle, and this control device can be the controller 82 in this embodiment. Or as described in Chinese Patent Application No. 201220367045.9, the patent name is a circuit control device using CPLD to control the motor of a balance car. Of course, in practical applications, other control devices and control methods can also be selected, such as the control method described in Chinese Patent Application No. 201310516158.X, the patent name is two-wheel self-balancing vehicle control method.

In summary, the utility model is uniquely provided with an inner cover between the top cover and the bottom cover of the improved electric balance car, which makes the whole structure of the improved electric balance car more firm, and at the same time provides protection for the electronic components inside the car body. effect. In addition, a space for fixing the electric drive system is formed between the inner cover and the bottom cover, making the installation of electronic components more compact. By setting the power supply and the controller in two parts of the car body, one power supply and one controller can control two in-wheel motors at the same time, which makes the assembly easier, the wiring more convenient, and saves space. The weight on both sides of the body is more balanced, increasing the self-balancing of the body. The wheels of the utility model are located at the edges of the left and right sides of the car body, so that larger-sized wheels can be used, and compared with the existing balance car whose wheels are installed at the bottom of the bottom cover, its movement stroke and speed advantages are obvious. In addition, the utility model adopts the hub motor, and the motor is directly installed in the wheel, so that the structure of the improved electric balance car is more compact. Compared with the balance car with a separate motor, it saves space and the whole device is more compact.

Although the utility model has been disclosed above by the preferred embodiments, it is not intended to limit the utility model, and any skilled person can make some changes and modifications without departing from the spirit and scope of the utility model, so The protection scope of the present utility model should be as the criterion according to the protection scope required by the claims.

Claims (9)

1. An electric balance car, characterized in that, comprising: An inner cover, the inner cover includes a first inner cover and a second inner cover which are arranged symmetrically and are rotatable with each other, and the sides of the first inner cover and the second inner cover facing the user are both provided with notches; Two pedals are respectively arranged in the gaps of the first inner cover and the second inner cover; Two wheels extend from opposite sides of the inner cover respectively, are fixed on both sides of the inner cover and can rotate around the inner cover, and the wheels further include a fixed shaft extending from the center of the wheel, and fixed on the inner cover; Two in-wheel motors are arranged in the two wheels respectively; The power supply is fixed on the first inner cover and is close to the second inner cover; Two circuit boards integrated with multiple sensors are respectively fixed on the first inner cover and the second inner cover, wherein the circuit board fixed on the first inner cover is fixed at a position where the first inner cover is away from the second inner cover; The controller is fixed on the second inner cover, the controller is electrically connected to the plurality of sensors, the power supply and the hub motor, and the controller controls the corresponding hub motor to drive the corresponding wheel to rotate according to the sensing signal transmitted by the sensor. 2. The electric balance vehicle according to claim 1, further comprising a connecting piece connecting the inner cover and the wheel, the connecting piece is fixed to the inner cover, and the wheel is connected to the connecting piece through a fixed shaft Fixed connection. 3. The electric balance car according to claim 1, further comprising a U-shaped fixing piece fixed on the inner cover, and the upper end of the U-shaped fixing piece is provided with two U-shaped openings on the induction switch One-to-one correspondence and through holes communicating with the accommodating cavity, each through-hole is provided with a blocking member, and each pedal is respectively provided with a trigger column corresponding to the blocking member one-to-one, and the U-shaped The bottom of the fixing part has an opening, and when the user stands on the pedal, the trigger column drives the blocking parts under pressure to extend into the U-shaped opening one by one. 4 . The electric balancing vehicle according to claim 1 , further comprising a cooling plate disposed on the second inner cover, and the circuit board and the controller are fixed on the second inner cover through the cooling plate. 5. The electric balancing vehicle according to claim 1, further comprising a top cover and a bottom cover that can be fixed to each other, the inner cover is fixed between the top cover and the bottom cover, and the top cover includes The first top cover and the second top cover are arranged symmetrically and can rotate with each other. The bottom cover includes the first bottom cover and the second bottom cover which are arranged symmetrically and can rotate with each other. and the controller are all arranged between the bottom cover and the inner cover. 6. The electric balance vehicle according to claim 1, characterized in that, the first inner cover and the second inner cover are rotationally connected through a rotating mechanism, and the rotating mechanism includes a bushing, and the bushings are opposite to each other. The two ends extend into the first inner cover and the second inner cover respectively, the first inner cover and the second inner cover have a cylindrical cylinder body corresponding to the shaft sleeve, and the first inner cover , and the second inner cover can rotate around the shaft sleeve. 7. The electric balance car according to claim 6, wherein the rotating mechanism further includes two bearings and two snap rings, and the bearings and bushings are installed in the barrel through the snap rings from outside to inside , the two bearings are respectively fixed in the cylinders of the first inner cover and the second inner cover, and the shaft sleeve is rotatably fixed in the two bearings. 8 . The electric balancing vehicle according to claim 3 , wherein the U-shaped fixing part is arranged under the inner cover, and the U-shaped fixing part is connected to the inner cover through a detachable structure. 9. The electric balance vehicle according to claim 8, wherein the blocking member comprises a columnar body, an elastic annular skirt is provided on the side of the columnar body, and a U-shaped fixing member and the inner cover are provided between the U-shaped fixing member and the inner cover. There is an annular positioning groove, and the outer edge of the elastic annular skirt is fixed in the annular positioning groove.