A steering detection mechanism for a self-balancing vehicle and a self-balancing vehicle

Abstract

The present invention relates to a steering detection mechanism for a self-balancing vehicle and a self-balancing vehicle, including a connecting shaft and a sensor; the connecting shaft includes a detection portion; the detection portion is provided with a receiving cavity, the receiving cavity is located at the end of the detection portion, the receiving cavity is provided with a detection member, the detection member is directly fixed in the receiving cavity, and the sensor is correspondingly arranged with the detection member; the detection portion is further provided with a detection cavity for accommodating the sensor, and the sensor is partially or entirely located in the detection cavity. The steering detection mechanism has a simple structure, is convenient to install, and has high detection accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of electric scooters, and particularly to a steering detection mechanism for a scooter and a scooter. Background Art

[0002] With the economic development, energy is increasingly scarce, and many social problems such as automobile emission pollution and urban congestion are becoming increasingly prominent. As a new generation of means of transportation, electric scooters have been favored by consumers. Based on the principle of "dynamic stability", the electric scooter uses the gyroscope and acceleration sensor inside the vehicle body to judge the posture state of the vehicle body, calculates appropriate instructions through a precise and high-speed central microprocessor, and drives the motor to adjust the posture to maintain the balance of the system.

[0003] However, the current steering structure of scooters has deficiencies such as inaccurate detection and poor reliability, which brings certain inconvenience to people's use. Summary of the Invention

[0004] The purpose of the present invention is to provide a steering detection mechanism, which has a simple structure, is convenient to install, and has high detection accuracy.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A steering detection mechanism for a scooter, comprising:

[0007] A connecting shaft and a sensor;

[0008] The connecting shaft includes a detection portion;

[0009] The detection portion is provided with a receiving cavity, the receiving cavity is located at the end of the detection portion, the receiving cavity is provided with a detection member, the detection member is directly fixed in the receiving cavity, and the sensor is correspondingly arranged with the detection member; the direct fixation means that there is no need to adopt other device structures such as fixing frames and fixing members between the detection member and the receiving cavity.

[0010] The detection portion is further provided with a detection cavity for accommodating the sensor, and the sensor is partially or entirely located in the detection cavity.

[0011] Preferably, the receiving cavity includes a first receiving cavity and a second receiving cavity, a first detection member is arranged in the first receiving cavity, and a second detection member is arranged in the second receiving cavity.

[0012] Preferably, the detection member matches the shape of the receiving cavity; or the first detection member and the second detection member are rectangular structures, the first receiving cavity and the second receiving cavity are rounded rectangular or oval structures, and the first detection member and the second detection member are in interference fit with the first receiving cavity and the second receiving cavity respectively.

[0013] Preferably, the detection cavity communicates with the accommodation cavity.

[0014] Preferably, the first detection member and the second detection member are arranged correspondingly.

[0015] Preferably, the detection member is bonded to the accommodation cavity.

[0016] Preferably, the connecting shaft further includes a connecting portion and a resilient portion. The resilient portion is located between the connecting portion and the detection portion. The connecting portion is connected to an external control component. The steering detection mechanism further includes an elastic member that cooperates with the resilient portion, and the elastic member is used to reset the connecting shaft.

[0017] Preferably, the steering detection mechanism further includes a gland, and the gland presses the connecting shaft and the elastic member onto the housing of the scooter.

[0018] Preferably, the detection portion is provided with a first rotation limiting portion, the connecting portion is provided with a second rotation limiting portion, and the gland presses the connecting shaft between the first rotation limiting portion and the second rotation limiting portion.

[0019] Preferably, the present invention also discloses a scooter having the steering detection mechanism.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] The steering detection mechanism and the scooter having the steering detection mechanism provided in the above technical solution have a simple structure, are convenient to install, and have high detection accuracy. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of a steering detection mechanism of an embodiment.

[0023] Figure 2 It is Figure 1 a cross-sectional schematic diagram of the shown steering detection mechanism.

[0024] Figure 3 It is a schematic diagram of a scooter having a steering detection mechanism.

[0025] Figure 4 It is Figure 3 a partial enlarged schematic diagram of the place A in

[0026] Figure 5 It is an exploded structural schematic diagram of a scooter having a steering detection mechanism.

[0027] Figure 6 It is a schematic structural diagram of a steering detection mechanism of another embodiment.

[0028] Figure 7 Schematic structural diagram of a steering detection mechanism for another embodiment.

[0029] Figure 8 Schematic structural diagram of a steering detection mechanism for another embodiment.

[0030] Figure 9 Schematic structural diagram of a steering detection mechanism for another embodiment.

[0031] Figure 10 Schematic structural diagram of a steering detection mechanism for another embodiment.

[0032] Figure 11 Schematic structural diagram of a steering detection mechanism for another embodiment.

[0033] Figure 12 Schematic structural diagram of a steering detection mechanism for another embodiment.

[0034] Figure 13 Schematic structural diagram of a steering detection mechanism for another embodiment.

[0035] In the figure, 1 is the steering detection mechanism; 11 is the connecting shaft; 111 is the detection part; 1111 is the first accommodation cavity; 1112 is the second accommodation cavity; 1113 is the first detection piece; 1114 is the second detection piece; 1115 is the detection cavity; 112 is the elastic return part; 113 is the connecting part; 114 is the first step part; 115 is the second step part; 116 is the plane; 117 is the first rotation limit part; 118 is the second rotation limit part; 119 is the buffer part; 12 is the sensor; 13 is the gland; 14 is the sensor fixing plate; 2 is the scooter; 21 is the housing; 22 is the external control component; 23 is the control system; 100 is the third accommodation cavity; 101 is the third detection piece. Specific embodiments

[0036] The present invention will be described in more detail below with reference to the accompanying drawings. It should be noted that the description of the present invention with reference to the accompanying drawings is only illustrative and not restrictive. Combinations can be made between different embodiments to form other embodiments not shown in the following description. Please refer to

[0037] In this embodiment, a steering detection mechanism for a scooter is provided. The steering detection mechanism has a simple structure, is easy to install, and has high detection accuracy. Figures 1 to 12

[0038] The steering detection mechanism includes: a connecting shaft 11 and a sensor 12. The connecting shaft 11 includes a connecting portion 113, a resilient portion 112, and a detection portion 111. The resilient portion 112 is located between the connecting portion 113 and the detection portion 111. The detection portion 111 is provided with a receiving cavity. The receiving cavity is provided with a detecting member. The receiving cavity is located at the end of the detection portion 111. The receiving cavity is provided with a detecting member, and the detecting member is directly fixed in the receiving cavity. The direct fixation means that no other device structures such as fixing frames and fixing members are required between the detecting member and the receiving cavity. The sensor 12 is arranged corresponding to the detecting member. Specifically, the sensor 12 can be arranged on the base of the steering detection mechanism 1 or on an external device, and the connecting shaft 11 is rotatable relative to the sensor 12.

[0039] Wherein, the detecting member can be a magnet or other magnetic substances, and the sensor 12 is a Hall sensor for detecting a magnetic field; or, the detecting member can also be an echo plate, and the corresponding sensor 12 is an ultrasonic sensor; or the detecting member can also be a grating, and the corresponding sensor 12 is a photoelectric sensor.

[0040] The receiving cavity is located at the end of the detection portion 111. Preferably, the receiving cavity is located at the end of the connecting shaft 11 away from the connecting portion 113. The receiving cavity is formed as a groove or hole at the axial position of the end of the detection portion 111. The receiving cavity can be formed axially by processes such as turning, milling, and drilling, as shown in Figure 1 、 6 、9, 10, 11; or the receiving cavity can be formed radially by processes such as turning, milling, and drilling, as shown in Figure 12 、 13 shown.

[0041] Preferably, the cross-section of the receiving cavity is a rounded rectangular or oval structure, and the detecting member is a rectangular structure. The detecting member is in interference fit or transition fit with the rounded rectangular or oval-shaped receiving cavity, as shown in Figure 1 、 2 shown.

[0042] In another embodiment, the shape of the receiving cavity matches the shape of the detecting member, as shown in Figure 6 、

[0043] 7, 9, for example, a circular receiving cavity corresponds to a circular detecting member, or a rectangular receiving cavity corresponds to a rectangular detecting member, or a circular receiving cavity corresponds to a rectangular detecting member, or any other shape that can fix the detecting member in the receiving cavity. Of course, the detecting member can also be fixed in the receiving cavity by means such as gluing or welding.

[0044] In one embodiment, as shown in Figure 1As shown, the accommodation cavity includes a first accommodation cavity 1111 and a second accommodation cavity 1112. A first detection member 1113 is provided in the first accommodation cavity 1111, and a second detection member 1114 is provided in the second accommodation cavity 1112. The first detection member 1113 and the second detection member 1114 are arranged corresponding to each other. Further, the first accommodation cavity 1111 and the second accommodation cavity 1112 are arranged corresponding to each other. Of course, the first accommodation cavity 1111 and the second accommodation cavity 1112 can also be a connected accommodation cavity, such as Figure 8 shown. The sensor 12 is arranged corresponding to the two detection members, preferably at the perpendicular bisector or the midpoint of the line connecting the two detection members. Compared with one detection member, the two detection members make the detection of the sensor 12 more accurate. For example, when the first detection member 1113 and the second detection member 1114 are two magnets arranged opposite to each other, the sensor 12 is a Hall sensor. The opposite faces of the two magnets have opposite magnetic poles, and the magnetic field formed in this way is smoother and more stable, making the detection of the Hall sensor more accurate.

[0045] The detection part 111 is further provided with a detection cavity 1115 for accommodating the sensor 12. The sensor 12 is partially or entirely located in the detection cavity 1115. Of course, it can also not extend into the detection cavity 1115. The detection cavity 1115 is formed as a groove or a hole at the axial position of the end of the detection part 111, and the detection cavity 1115 can be formed by means such as turning, milling, and drilling. The detection cavity 1115 is arranged corresponding to the accommodation cavity. When there is one accommodation cavity, such as Figures 10 - 11 shown, the accommodation cavity includes a third accommodation cavity 100. The number of the third accommodation cavities 100 is only one. Correspondingly, a third detection member 101 is provided in the third accommodation cavity 100, and the number of the third detection members is also one. The detection cavity 1115 can be arranged at any position around the accommodation cavity. Preferably, the accommodation cavity is located at the axis center of the connection shaft 11 far from the end of the connection part 113, and the detection cavity 1115 is arranged above, below, left or right of the accommodation cavity.

[0046] In another embodiment, the accommodation cavity includes a first accommodation cavity 1111 and a second accommodation cavity 1112. A first detection member 1113 is provided in the first accommodation cavity 1111, and a second detection member 1114 is provided in the second accommodation cavity 1112. The detection cavity 1115 is located between the first accommodation cavity 1111 and the second accommodation cavity 1112, at the perpendicular bisector or the midpoint of the line connecting the two accommodation cavities. Preferably, the first accommodation cavity 1111 and the second accommodation cavity 1112 are located on the left and right or above and below the detection cavity 1115. The first accommodation cavity 1111 and the second accommodation cavity 1112 are respectively communicated with the detection cavity 1115, such as Figure 2As shown, or the first accommodation cavity 1111, the second accommodation cavity 1112 and the detection cavity 1115 are directly set as one cavity, such as Figure 8 As shown. For example, when the first detection member 1113 and the second detection member 1114 are two magnets arranged oppositely, the sensor 12 is a Hall sensor, and the opposite faces of the two magnets have opposite magnetic poles. The connected first accommodation cavity 1111, second accommodation cavity 1112 and detection cavity 1115 prevent the magnetic fields of the two magnets from being blocked by the cavity walls of the accommodation cavity, so that the magnetic field directly acts on the sensor 12, thereby making the magnetic field change received by the sensor 12 sufficient, improving the accuracy of steering detection, and enabling the material of the connecting shaft 11 to be not limited to magnetic conductive materials. For example, the connecting shaft 11 is usually made of aluminum material because the aluminum material has good forming performance and is light in weight, having the effect of reducing weight. However, when the accommodation cavity and the detection cavity 1115 provided on the aluminum connecting shaft 1 are not connected, the magnetic field emitted by the magnet arranged in the accommodation cavity is easily blocked by the aluminum accommodation cavity wall, making the detection of the Hall sensor inaccurate.

[0047] In one embodiment, such as Figure 3 , 4 , as shown in 5, the connecting portion 113 of the steering detection mechanism 1 is connected to the external control component 22. The steering detection mechanism 1 further includes an elastic member that cooperates with the return portion 112. The elastic member is used to reset the connecting shaft 11. The external control component 22 is the leg control rod or the hand control rod of the scooter 2. The connecting shaft 11 is installed on the housing 21 of the scooter 2. The sensor 12 is located inside the scooter 2 vehicle body. The connecting shaft 11 is rotatable relative to the sensor 12. When the scooter 2 needs to turn, the operator can control the hand control rod or the leg control rod to deflect to the side where turning is required. At this time, the deflection of the hand control rod or the leg control rod can drive the connecting portion 113 and then drive the connecting shaft 11 to rotate in the same direction, that is, the hand control rod or the leg control rod swings around the axis of the connecting shaft 11. The connecting shaft 11 drives the detection member located at the end of the detection portion 111 to rotate synchronously, so that the detection member deviates relative to the sensor 12. For example, when the detection member is a magnet and the sensor 12 is a Hall sensor, the magnetic field detected by the Hall sensor also changes; or for example, when the detection member is an echo plate and the sensor 12 is an ultrasonic sensor 12, the distance detected by the ultrasonic sensor 12 also changes; or for example, when the detection member is a grating and the sensor 12 is a photoelectric sensor 12, the change in the grating code detected by the photoelectric sensor 12 occurs. Then, the sensor 12 can transmit the signal it detects to the control system 23 of the scooter 2. After being analyzed and processed by the control system 23 of the scooter 2, the control system 23 sends an operation signal to the drive system that controls the wheel body, thereby realizing the steering operation of the scooter 2.

[0048] In one embodiment, the sensor 12 is a Hall sensor, the detecting member is a magnet, and the steering detection mechanism 1 further includes a sensor fixing plate 14. The Hall sensor is disposed on the sensor fixing plate 14, and the sensor fixing plate 14 is disposed inside the scooter 2 and connected to the control system 23 of the scooter 2.

[0049] The steering detection mechanism 1 further includes a gland 13, and the gland 13 presses the connecting shaft 11 and the elastic member against the housing 21 of the scooter 2. A first step portion 114 is provided at the connection between the resilient portion 112 and the detection portion 111, and a second step portion 115 is provided at the connection between the resilient portion 112 and the connection portion 113. A plane 116 is provided between the first step portion 114 and the second step portion 115, and the plane 116 abuts against the elastic member. Preferably, a buffer portion 119 is provided between the plane 116 and the elastic member, and the buffer portion 119 is used to slow down the wear of the plane 116, as shown in FIGS. 5 and 7. A first rotation limiting portion 117 is provided near the first step portion 114 of the detection portion 111, and a second rotation limiting portion 118 is provided near the second step portion 115 of the connection portion 113. The gland 13 presses the connecting shaft 11 between the first rotation limiting portion 117 and the second rotation limiting portion 118, and the first rotation limiting portion 117 and the second rotation limiting portion 118 may be bearings or copper sleeves. The sensor fixing plate 14 is fixed to the gland 13 or the housing 21 of the scooter 2.

[0050] The above embodiments are only the preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited thereby. Any non-substantive changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A steering detection mechanism for a balancing vehicle, characterized in that Comprising: A connecting shaft (11) and a sensor (12); The connecting shaft (11) includes a detection part (111); The detection part (111) is provided with a receiving cavity, the receiving cavity is located at the end of the detection part (111), the receiving cavity is provided with a detection element, the detection element is directly fixed in the receiving cavity, and the sensor (12) is arranged corresponding to the detection element; The detection part (111) is further provided with a detection cavity (1115), and the detection cavity (1115) is used to accommodate the sensor (12), Part or all of the sensor (12) is located in the detection cavity (1115); The receiving cavity includes a first receiving cavity (1111) and a second receiving cavity (1112), a first detection element (1113) is arranged in the first receiving cavity (1111), and a second detection element (1114) is arranged in the second receiving cavity (1112); The first detection element (1113) and the second detection element (1114) respectively match the shapes of the first receiving cavity (1111) and the second receiving cavity (1112) or are in interference fit; The first receiving cavity (1111) and the second receiving cavity (1112) extend along the radial direction of the detection part (111), The first receiving cavity (1111) has a closed first end along its radial direction and a second end penetrating the side surface of the detection part (111), and the first detection element (1113) is inserted into the first receiving cavity (1111) along the radial direction of the first receiving cavity (1111) from the corresponding second end, The second receiving cavity (1112) has a closed first end along its radial direction and a second end penetrating the side surface of the detection part (111), and the second detection element (1114) is inserted into the second receiving cavity (1112) along the radial direction of the second receiving cavity (1112) from the corresponding second end.

2. The steering detection mechanism for a self-balancing vehicle according to claim 1, wherein The detection cavity (1115) communicates with the receiving cavity.

3. The steering detection mechanism for a self-balancing vehicle according to claim 2, characterized in that, The first detection element (1113) and the second detection element (1114) are arranged corresponding to each other.

4. The steering detection mechanism for a balancing scooter according to claim 1 or 2 or 3, characterized in that, The detection element is bonded to the receiving cavity.

5. The steering detection mechanism for a self-balancing vehicle according to claim 1 or 2 or 3, characterized in that, The connecting shaft (11) further includes a connecting part (113) and a resilient part (112), the resilient part (112) is located between the connecting part (113) and the detection part (111), the connecting part (113) is connected to an external control component (22), and the steering detection mechanism (1) further includes an elastic member (15) cooperating with the resilient part (112), and the elastic member (15) is used to reset the connecting shaft (11).

6. The steering detection mechanism for a self-balancing vehicle according to claim 5, characterized in that, The steering detection mechanism further includes a gland (13), and the gland (13) presses the connecting shaft (11) and the elastic member (15) against the housing (21) of the balance bike.

7. The steering detection mechanism for a self-balancing vehicle according to claim 6, wherein, The detection part is provided with a first rotation limiting part (117), the connecting part (113) is provided with a second rotation limiting part (118), and the gland (13) presses the connecting shaft (11) between the first rotation limiting part (117) and the second rotation limiting part (118).

8. A self-balancing scooter, characterized in that, Comprising the steering detection mechanism according to any one of claims 1-7.

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