scooter

Abstract

The application provides a scooter, a first input end of an output circuit is connected to an output end of a touch control circuit to receive a touch control signal, and / or a second input end is connected to an output end of a master control circuit to receive an MCU control signal, which is used to output a control signal according to the touch control signal and / or the MCU control signal. A first end of a driving circuit is connected to an output end of the output circuit, a second end is connected to a first end of an illuminating device, and a third end is connected to a ground end, which is used to control whether the first end of the illuminating device is connected to the ground end according to the control signal, so as to control whether the illuminating device is in a working state. By increasing the illuminating device, receiving the touch signal sent by the touch control circuit through the output circuit and / or the MCU control signal sent by the master control circuit, and controlling whether the illuminating device is in a working state, the illuminating device of the scooter can work in the night or in a dim environment, and the driving safety of the scooter in the night or in the dim environment is improved.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a mobility scooter. Background Art

[0002] A mobility scooter is a means of transportation and assistive device designed for mobility. It serves as an important means of transportation for special needs individuals (such as the injured, sick, and disabled) for home rehabilitation, transportation, medical treatment, and outings. It not only meets the mobility needs of special needs individuals but also helps them exercise and participate in social activities. It also facilitates family members' mobility and care for special needs individuals.

[0003] However, it is inconvenient to use at night or in dimly lit environments, affecting the user's travel safety. Summary of the Invention

[0004] The present application provides a mobility scooter for providing lighting at night or in dimly lit environments to improve safety.

[0005] In a first aspect, the present application provides a mobility scooter, comprising: an output circuit, a touch control circuit, a main control circuit, a drive circuit, and a lighting device;

[0006] The output circuit has a first input end connected to the output end of the touch control circuit to receive a touch control signal output by the touch control circuit, and / or a second input end connected to the output end of the main control circuit to receive an MCU control signal output by the main control circuit, and the output circuit is configured to output a control signal according to the touch control signal and / or the MCU control signal;

[0007] The driving circuit has a first end connected to the output end of the output circuit, a second end connected to the first end of the lighting device, and a third end connected to the ground end. The driving circuit is used to control whether the first end of the lighting device is connected to the ground end according to the control signal to control whether the lighting device is in a working state.

[0008] Optionally, the output circuit includes: a first chip resistor and / or a second chip resistor;

[0009] The first chip resistor has a first end serving as the first input end of the output circuit and connected to the output end of the touch control circuit, and a second end serving as the output end of the output circuit and connected to the first end of the drive circuit, for connecting the output end of the touch control circuit and the first end of the drive circuit;

[0010] The second chip resistor has a first end serving as the second input end of the output circuit, connected to the output end of the main control circuit, and a second end serving as the output end of the output circuit, connected to the first end of the drive circuit, and is used to connect the output end of the main control circuit and the first end of the drive circuit.

[0011] Optionally, the driving circuit includes a triode and a transistor;

[0012] The transistor has a base as the first end of the driving circuit, a collector connected to the first power supply end, and an emitter connected to the ground end, and the transistor is in an on or off state under the action of the control signal;

[0013] The transistor has a gate connected to the collector of the triode, a first end serving as the second end of the drive circuit and connected to the first end of the lighting device, and a second end serving as the third end of the output circuit and connected to the ground end;

[0014] When the triode is in the on state, the transistor is in the off state to control the first end of the lighting device to be disconnected from the ground end; when the triode is in the off state, the transistor is in the on state to control the first end of the lighting device to be connected to the ground end.

[0015] Optionally, the touch control circuit includes: a touch sensing chip, a touch device and a first capacitor;

[0016] The touch sensing chip has a touch key input pin connected to the first end of the touch device and the first end of the first capacitor, and an output pin serving as the output end of the touch control circuit, configured to output a touch control signal when a change in capacitance of the touch device is detected;

[0017] The second end of the first capacitor is connected to the ground end and is used to adjust the sensitivity of the touch device.

[0018] Optionally, the touch device includes a touch spring and an isolation member, the first end of the touch spring serves as the first end of the touch device and is connected to the touch key input pin, and the second end of the touch spring is close to the isolation member.

[0019] Optionally, the mobility scooter includes a first armrest and a second armrest, the first armrest or the second armrest includes a first auxiliary device, the first auxiliary device includes a first shell, a second shell, and a second circuit board located in a cavity between the first shell and the second shell, and the second shell is provided with a touch area and a touch spring limiting groove;

[0020] The output circuit, the touch control circuit, the drive circuit and the lighting device are located on the second circuit board, and the touch spring is located in the touch spring limiting groove.

[0021] Optionally, the main control circuit includes: a main control chip, a CAN module, an expansion board chip, a first control unit and a second control unit;

[0022] The main control chip has a first end connected to the second end of the first control unit, a second end connected to the second end of the second control unit, and an output end connected to the first end of the CAN module, and is used to output the MCU control signal when the first control unit and the second control unit are in working state;

[0023] The CAN module has a second end connected to the first end of the expansion board chip, and is used to transmit the MCU control signal to the first end of the expansion board chip;

[0024] The expansion board chip has an output end serving as the output end of the main control circuit, connected to the second input end of the output circuit, and configured to transmit the MCU control signal to the second input end of the output circuit;

[0025] The first control unit has a first end connected to the ground end, and when the button is connected to the first end and the second end of the first control unit, the first control unit is in an operating state;

[0026] The second control unit has a first end connected to the ground end, and when the button is connected to the first end and the second end of the second control unit, the second control unit is in an operating state.

[0027] Optionally, the CAN module includes: a first CAN module, a second CAN module and a CAN connection bus;

[0028] The first CAN module has a first end serving as the first end of the CAN module and connected to the output end of the main control chip, and a second end connected to the CAN connection bus for transmitting the MCU control signal to the CAN connection bus;

[0029] The CAN connection bus is connected to a first end of the second CAN module and is used to transmit the MCU control signal to the second CAN module;

[0030] The second end of the second CAN module serves as the second end of the CAN module and is connected to the first end of the expansion board chip, so as to transmit the MCU control signal to the expansion board chip.

[0031] Optionally, the mobility scooter comprises: a body and a handrail assembly, and the handrail assembly comprises: a first handrail and a second handrail;

[0032] The main control chip and the first CAN module are located on the first armrest;

[0033] The expansion board chip, the second CAN module, the touch control circuit, the output circuit, the drive circuit and the lighting device are located on the second armrest;

[0034] The CAN connection bus is located in the body.

[0035] Optionally, the mobility scooter comprises: a body and a handrail assembly, wherein the handrail assembly comprises a first handrail and a second handrail;

[0036] The lighting device includes a first lighting device and a second lighting device, and the driving circuit includes a first driving circuit and a second driving circuit;

[0037] The main control chip, the first CAN module, the first driving circuit and the first lighting device are located on the first armrest;

[0038] The expansion board chip, the second CAN module, the touch control circuit, the output circuit, the second drive circuit and the second lighting device are located on the second armrest;

[0039] The CAN connection bus is located in the body.

[0040] Optionally, the first armrest is the left armrest of the scooter, and the second armrest is the right armrest of the scooter, or the first armrest is the right armrest of the scooter, and the second armrest is the left armrest of the scooter.

[0041] The scooter provided by the present application includes: an output circuit, a touch control circuit, a main control circuit, a drive circuit, and a lighting device. The first input end of the output circuit is connected to the output end of the touch control circuit to receive a touch control signal output by the touch control circuit, and / or the second input end of the output circuit is connected to the output end of the main control circuit to receive an MCU control signal output by the main control circuit. The output circuit is used to output a control signal based on the touch control signal and / or the MCU control signal. The first end of the drive circuit is connected to the output end of the output circuit, the second end of the drive circuit is connected to the first end of the lighting device, and the third end of the drive circuit is connected to the ground terminal. The drive circuit is used to control whether the first end of the lighting device is connected to the ground terminal based on the control signal to control whether the lighting device is in an operating state. By adding a lighting device and simultaneously receiving the touch signal sent by the touch control circuit and / or the MCU control signal sent by the main control circuit through the output circuit, the lighting device is controlled to be in an operating state, thereby enabling the lighting device of the scooter to be controlled to operate at night or in dimly lit environments, thereby improving the driving safety of the scooter at night or in dimly lit environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0043] Figure 1 A circuit diagram of a mobility scooter provided in one embodiment of the present application;

[0044] Figure 2 A circuit diagram of an output circuit and a driving circuit provided in one embodiment of the present application;

[0045] Figure 3 A circuit diagram of a touch control circuit provided in one embodiment of the present application;

[0046] Figure 4 A circuit diagram of a main control circuit provided in one embodiment of the present application;

[0047] Figure 5 A schematic structural diagram of a mobility scooter provided in one embodiment of the present application;

[0048] Figure 6 A structural entity diagram of a mobility scooter provided in another embodiment of the present application;

[0049] Figure 7 A schematic structural diagram of a first auxiliary device provided in one embodiment of the present application;

[0050] Figure 8 This is a schematic structural diagram of a first auxiliary device provided in another embodiment of the present application. DETAILED DESCRIPTION

[0051] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0052] As described in the background art, it is inconvenient to use a mobility scooter at night or in a dimly lit environment, which affects the user's travel safety. Therefore, it is particularly important to improve the driving safety of a mobility scooter at night or in a dimly lit environment.

[0053] To address the above-mentioned issues, the present application proposes a mobility scooter comprising: an output circuit, a touch control circuit, a main control circuit, a drive circuit, and a lighting device. A first input terminal of the output circuit is connected to the output terminal of the touch control circuit to receive a touch control signal output by the touch control circuit, and / or a second input terminal of the output circuit is connected to the output terminal of the main control circuit to receive an MCU control signal output by the main control circuit. The output circuit is configured to output a control signal based on the touch control signal and / or the MCU control signal. A first terminal of the drive circuit is connected to the output terminal of the output circuit, a second terminal of the drive circuit is connected to a first terminal of the lighting device, and a third terminal of the drive circuit is connected to a ground terminal. The drive circuit is configured to control whether the first terminal of the lighting device is connected to the ground terminal based on the control signal to control whether the lighting device is in an operating state, for example, whether the lighting device is in an illuminated state. By adding a lighting device and simultaneously receiving a touch signal sent by the touch control circuit and / or an MCU control signal sent by the main control circuit through the output circuit to control whether the lighting device is in an operating state, the lighting device of the mobility scooter can be controlled to operate at night or in dimly lit environments, thereby improving the driving safety of the mobility scooter at night or in dimly lit environments.

[0054] The following specific embodiments are used to describe the technical solution of the present application in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0055] Figure 1 The circuit diagram of a mobility scooter provided in one embodiment of the present application is shown. The mobility scooter of this embodiment includes:

[0056] Output circuit 101, touch control circuit 102, main control circuit 103, drive circuit 104 and lighting device 105;

[0057] The output circuit 101 has a first input end connected to the output end of the touch control circuit 102 to receive the touch control signal Ctrl LED output by the touch control circuit 102, and / or a second input end connected to the output end of the main control circuit 103 to receive the MCU control signal KEY OUT output by the main control circuit 103. The output circuit 101 is configured to output a control signal based on the touch control signal Ctrl LED and / or the MCU control signal KEY OUT.

[0058] The driving circuit 104 has a first end connected to the output end of the output circuit 101, a second end connected to the first end of the lighting device 105, and a third end connected to the ground end GND. The driving circuit 104 is used to control whether the first end of the lighting device 105 is connected to the ground end GND according to the control signal, so as to control whether the lighting device 105 is in a working state.

[0059] In some embodiments, the first input terminal of the output circuit 101 is connected to the output terminal of the touch control circuit 102 to receive the touch control signal Ctrl LED output by the touch control circuit 102 . The output circuit 101 is configured to output a control signal according to the touch control signal Ctrl LED.

[0060] In other embodiments, the second input terminal of the output circuit 101 is connected to the output terminal of the main control circuit 103 to receive the MCU control signal KEY OUT output by the main control circuit 103. The output circuit 101 is configured to output a control signal according to the MCU control signal KEY OUT.

[0061] In some other embodiments, the first input end of the output circuit 101 is connected to the output end of the touch control circuit 102, and receives the touch control signal Ctrl LED output by the touch control circuit 102. The second input end of the output circuit 101 is connected to the output end of the main control circuit 103, and receives the MCU control signal KEY OUT output by the main control circuit 103. The output circuit 101 is used to output a control signal based on the touch control signal Ctrl LED and the MCU control signal KEY OUT.

[0062] In this embodiment, Figure 2 As shown, the output circuit 101 includes a first chip resistor R3 and / or a second chip resistor R8.

[0063] When the output circuit 101 includes the first chip resistor R3, the touch control signal Ctrl LED output by the touch control circuit 102 controls the driver circuit 104 to control the state of the lighting device 105. When the output circuit 101 includes the second chip resistor R8, the driver circuit 104 is controlled by the MCU control signal KEY OUT output by the main control circuit 103 to control the state of the lighting device 105. When the output circuit 101 includes the first chip resistor R3 and the second chip resistor R8, the driver circuit 104 is controlled by the touch control signal Ctrl LED output by the touch control circuit 102 and the MCU control signal KEY OUT output by the main control circuit 103. The first chip resistor R3 can control whether the first input terminal of the output circuit 101 is connected to the output terminal of the touch control circuit 102 by being attached or not attached, and the second chip resistor R8 can control whether the first input terminal of the output circuit 101 is connected to the output terminal of the main control circuit 103 by being attached or not attached.

[0064] When the output circuit 101 includes the first chip resistor R3, the first end of the first chip resistor R3 serves as the first input end of the output circuit 101, connected to the output end of the touch control circuit 102, and the second end of the first chip resistor R3 serves as the output end of the output circuit 101, connected to the first end of the drive circuit 104, so that the first input end of the output circuit 101 is connected to the output end of the touch control circuit 102. At the same time, the first chip resistor R3 can serve as a current limiting resistor to prevent the touch control signal Ctrl LED output by the touch control circuit 102 from damaging the drive circuit 104.

[0065] When the output circuit 101 includes a second chip resistor R8, the first end of the second chip resistor R8 serves as the second input end of the output circuit 101, connected to the output end of the main control circuit 103, and the second end of the second chip resistor R8 is connected to the second end of the first chip resistor R3, serving as the output end of the output circuit 101, connected to the first end of the drive circuit 104, so that the second input end of the output circuit 101 is connected to the first end of the main control circuit 103. At the same time, the second chip resistor R8 can serve as a current limiting resistor to prevent the MCU control signal KEY OUT output by the main control circuit 103 from damaging the drive circuit 104.

[0066] When the output circuit 101 includes a first chip resistor R3 and a second chip resistor R8, the first end of the first chip resistor R3 serves as the first input end of the output circuit 101, connected to the output end of the touch control circuit 102, the first end of the second chip resistor R8 serves as the second input end of the output circuit 101, connected to the output end of the main control circuit 103, and the second end of the second chip resistor R8 is connected to the second end of the first chip resistor R3 as the output end of the output circuit 101, connected to the first end of the drive circuit 104.

[0067] Optional, such as Figure 2 As shown, the output circuit 101 may further include a fifth resistor R5 and a ninth resistor R9. The first end of the fifth resistor R5 is connected to the third power supply terminal, and the second end of the fifth resistor R5 is connected to the second end of the first chip resistor R3 and / or the second end of the second chip resistor R8. The third power supply terminal can provide a 3V3 voltage. The fifth resistor R5 is used to pull up and maintain the high level of the output end of the output circuit 101, so that the transistor Q2 in the drive circuit 104 is turned on in the default state, so that the transistor Q1 is turned off in the default state, and thus the lighting device 105 is in the non-on state by default. The first end of the ninth resistor R9 is connected to the second end of the first chip resistor R3 and / or the second end of the second chip resistor R8, and the second end of the ninth resistor R9 serves as the output end of the output circuit 101 and is connected to the first end of the drive circuit 104. The ninth resistor R9 can be used as a current limiting resistor to avoid damage to the drive circuit 104 when the current is large.

[0068] In this embodiment, Figure 2 As shown, the driving circuit 104 includes a transistor Q2 and a transistor Q1, so that through the primary control of the transistor Q2 and the secondary control of the transistor Q1, the lighting device 105 can be more accurately controlled to be in an operating state or a non-operating state according to the touch control signal Ctrl LED and / or the MCU control signal KEY OUT.

[0069] The base of transistor Q2 serves as the first terminal of driver circuit 104, connected to the output terminal of output circuit 101, and receives a control signal from output circuit 101. The collector of transistor Q2 is connected to the first power supply terminal, and the emitter of transistor Q2 is connected to ground terminal GND. Transistor Q2 is turned on or off in response to the control signal, thereby controlling the gate of transistor Q1 to receive a low voltage provided by ground terminal GND or a high voltage provided by the first power supply terminal. The first power supply terminal can provide, for example, a +5V voltage.

[0070] The gate of transistor Q1 is connected to the collector of transistor Q2. The first terminal of transistor Q1 serves as the second terminal of driver circuit 104 and is connected to the first terminal of lighting device 105. The second terminal of transistor Q1 serves as the third terminal of output circuit 101 and is connected to ground terminal GND. When transistor Q2 is turned on, transistor Q1 receives a low voltage provided by ground terminal GND. Under the control of the low voltage, transistor Q1 is turned off, disconnecting the first terminal of lighting device 105 from ground terminal GND, and activating lighting device 105. When transistor Q2 is turned off, transistor Q1 receives a high voltage provided by the first power supply terminal and is turned on under the control of the high voltage, connecting the first terminal of lighting device 105 to ground terminal GND, and activating lighting device 105. Transistor Q2 can be, for example, an NPN transistor Q2, and transistor Q1 can be, for example, a PMOS transistor Q1.

[0071] Specifically, when the touch control signal Ctrl LED received by the first input terminal of the output circuit 101 is a high level signal, and / or the MCU control signal KEY OUT received by the second input terminal is a high level signal, the control signal output by the output circuit 101 is a high level signal, such as Figure 2 The voltage at point T3 in the circuit is pulled high, and the transistor Q2 is turned on under the action of the control signal, so that the gate of the transistor Q1 receives the ground voltage provided by the ground terminal GND, as shown in FIG. Figure 2 The voltage at point T1 in the circuit is pulled down, causing transistor Q1 to turn off. The first terminal of the lighting device 105 is disconnected from the ground terminal GND, and the first terminal of the lighting device 105 is disconnected, and the lighting device 105 is in a non-operating state. When the touch control signal Ctrl LED received at the first input terminal of the output circuit 101 is a low-level signal, and / or the MCU control signal KEY OUT received at the second input terminal is a low-level signal, the control signal output by the output circuit 101 is a low-level signal, such as Figure 2 The voltage at point T3 in the circuit is pulled low, and the transistor Q2 is turned off under the action of the control signal, so that the gate of the transistor Q1 receives the high voltage provided by the first power supply terminal, as shown in FIG. Figure 2 The voltage at point T1 in the circuit is pulled high, turning on transistor Q1. The first terminal of lighting device 105 is then connected to ground terminal GND, and lighting device 105 is in a non-operating state. It should be noted that the second terminal of lighting device 105 receives a voltage provided by a fourth power supply terminal, which can provide, for example, +12V. An eleventh resistor and a fuse can be connected between the fourth power supply terminal and the first terminal of lighting device 105 to protect lighting device 105. Lighting device 105 can be, for example, an LED lamp, with the cathode of the LED lamp serving as the first terminal of lighting device 105 and the anode of the LED lamp serving as the second terminal of lighting device 105.

[0072] In practical applications, a second resistor R9 can be connected between the first power supply terminal and the collector of transistor Q2. Second resistor R9 can act as a current-limiting resistor to prevent the voltage provided by the first power supply terminal from causing losses to transistor Q1. A second capacitor C1 can be connected between the gate and the second terminal of transistor Q1. Second capacitor C1 acts as a buffer to prevent transistor Q1 from switching on and off instantly during power-on, causing the lighting device 105 to flicker when powered on.

[0073] In this embodiment, Figure 3 As shown, the touch control circuit 102 includes a touch sensing chip 1021, a touch device 1022, and a first capacitor C2. The touch sensing chip 1021 includes multiple pins, such as an output pin OUT, a negative power pin GND, a touch key input pin TCH, an output high / low active mode selection pin OLH, a positive power pin VDD, and a hold / sync mode selection pin HLD.

[0074] The touch button input pin TCH of the touch sensing chip 1021 is connected to the first end of the touch device 1022 and the first end of the first capacitor C2. The output pin OUT of the touch sensing chip 1021 serves as the output of the touch control circuit 102. The touch sensing chip 1021 is configured to output a touch control signal (Ctrl LED) when it detects a change in the capacitance of the touch device 1022. For example, the output of the touch sensing chip 1021 defaults to a high level. Upon detecting a change in the capacitance of the touch device 1022, the output state is changed to a low level. Upon detecting another change in the capacitance of the touch device 1022, the output state is changed to a high level, thereby outputting the touch control signal (Ctrl LED) based on the chip's existing functionality. The second end of the first capacitor C2 is connected to the ground terminal GND. The first capacitor C2 is configured to adjust the sensitivity of the touch device 1022. A higher capacitance of the first capacitor C2 decreases the sensitivity of the touch device 1022, while a lower capacitance of the first capacitor C2 increases the sensitivity of the touch device 1022.

[0075] Among them, the capacitance formed by the touch device 1022 may include, for example, the touch device 1022 and the user's finger. When the user's finger touches the touch device 1022, the capacitance formed by the touch device 1022 changes. The touch button input pin TCH of the touch sensing chip 1021 is connected to the touch device 1022, so that it can detect whether the capacitance formed by the touch device 1022 changes.

[0076] As a possible implementation, the touch device includes a touch spring and a spacer. The touch spring can increase the sensing area, improving sensitivity and reliability. One end of the touch spring serves as the first end of the touch device 1022 and is connected to the touch key input pin TCH of the touch sensing chip 1021. When a user's finger contacts the spacer, the user's finger acts as a plate, and the touch spring acts as another plate. The spacer isolates the user's finger from the touch spring and acts as a medium between the user's finger and the touch spring. Thus, the user's finger, touch spring, and spacer form a capacitor. Before and after the user's finger contacts the spacer, the capacitance of the touch key pin TCH of the touch sensing chip 1021 is different. The touch sensing chip 1021 can output a touch control signal (Ctrl LED) based on the change in capacitance formed by the touch device 1022. It should be noted that the second end of the touch spring is in close proximity to the spacer, for example, the second end of the touch spring is in contact with the spacer, or there is a small gap between the second end of the touch spring and the spacer. The size of the gap is determined based on the actual application to ensure that the touch spring and the human finger can form a capacitor. An eighth resistor R8 can also be connected between the touch spring and the touch key input pin. The first end of the eighth resistor R8 is connected to the first end of the touch spring, and the second end of the eighth resistor R8 is connected to the touch key input pin TCH. The eighth resistor R8 is used to improve the anti-interference ability of the touch to protect the touch sensing chip 1021.

[0077] In practical applications, the negative power supply pin GND of the touch sensing chip 1021 can be connected to the ground terminal GND. The output high / low active mode selection pin OLH of the touch sensing chip 1021 can be connected to the first end of the seventh resistor R7 and the first end of the third capacitor C3. The second end of the seventh resistor R7 is connected to the fifth power supply terminal, and the second end of the third capacitor C3 is connected to the ground terminal GND. The fifth power supply terminal can provide a voltage of 3V3, for example. The first end of the third capacitor C3 and the first end of the seventh resistor R7 can also be connected to the tenth resistor R10. The positive power supply pin VDD of the touch sensing chip 1021 is connected to the sixth power supply terminal, which can provide a voltage of 3V3. The hold / sync mode selection pin HLD of the touch sensing chip 1021 can be connected to the first end of the first resistor R1, and the second end of the first resistor R1 is connected to the seventh power supply terminal, which can provide a voltage of 3V3. The hold / sync mode selection pin of the touch sensing chip 1021 can also be connected to the first end of the fourth resistor R4, and the second end of the fourth resistor R4 is connected to the ground terminal GND.

[0078] In this embodiment, Figure 4As shown, the main control circuit 103 includes a main control chip 1031, a CAN module 1034, an expansion board chip 1032, a first control unit K1, and a second control unit K2. The first end of the main control chip 1031 is connected to the second end of the first control unit K1, the second end of the main control chip 1031 is connected to the second end of the second control unit K2, and the output end of the main control chip 1031 is connected to the first end of the CAN module 1034. The main control chip 1031 is used to receive control instructions and output the MCU control signal KEY OUT when the first control unit K1 and the second control unit K2 are in the working state. The first end of the CAN module 1034 is connected to the output end of the main control chip 1031, and the second end of the CAN module 1034 is connected to the first end of the expansion board chip 1032. The CAN module 1034 is used to transmit the MCU control signal output by the main control chip 1031 to the expansion board chip 1032. The output end of the expansion board chip 1032 serves as the output end of the main control circuit 103 and is connected to the second input end of the output circuit 101. The expansion board chip 1032 is used to transmit the MCU control signal KEY OUT to the second input end of the output circuit 101. The first end of the first control unit K1 is connected to the ground end GND. When the first control unit K1 receives a press operation, the button of the first control unit K1 connects the first end and the second end of the first control unit K1, and the first control unit K1 is in an operating state. The first end of the second control unit K2 is connected to the ground end GND. After the second control unit K2 receives a press operation, the button of the second control unit K2 connects the first end and the second end of the second control unit K2, and the second control unit K2 is in an operating state. The first control unit K1 and the second control unit K2 can be, for example, control switches.

[0079] In this embodiment, the CAN module 1034 includes a first CAN module 1035, a second CAN module 1036, and a CAN connection bus 1038. The first end of the first CAN module 1035 serves as the first end of the CAN module 1034 and is connected to the output end of the main control chip 1031. The second end of the first CAN module 1034 is connected to the CAN connection bus 1038. The first CAN module 1034 is configured to transmit the MCU control signal KEY OUT output by the main control chip 1031 to the CAN connection bus 1038. The CAN connection bus 1038 is also connected to the first end of the second CAN module 1036 and is configured to transmit the MCU control signal KEY OUT to the first end of the second CAN module 1036. The second end of the second CAN module 1036 serves as the second end of the CAN module 1034 and is connected to the first end of the expansion board chip 1032 and is configured to transmit the MCU control signal KEY OUT to the expansion board chip 1032.

[0080] In actual applications, the CAN module 1034 can also include a third CAN module 1037, the first end of the third CAN module 1037 is connected to the drive board chip 1033, and the second end of the third CAN module 1037 is connected to the CAN connection bus 1038, thereby receiving the drive signal transmitted by the main control chip 1031 through the first CAN module 1034 through the CAN connection bus 1038, and transmitting the drive signal to the drive board chip 1033, so that the drive board chip 1033 controls the movement of the mobility scooter according to the drive signal.

[0081] In order to facilitate understanding of the solution of this application, the structure of the mobility scooter is described in detail below. Figure 5 and Figure 6 As shown, this embodiment provides a mobility scooter, comprising a body 10, which includes a frame 11. Frame 11 provides a foundation for mounting other components. Frame 11 is provided with a seat 12, a backrest 13, and footrests 14, among other components. A user can sit on seat 12, leaning their back against backrest 13 and resting their feet on footrests 14, thereby ensuring comfortable use. Wheels 15 are also mounted below frame 11. These wheels 15 may, for example, include two front wheels 15 and two rear wheels 15 arranged along a first direction X. Rotation of the wheels 15 can drive the wheelchair along the first direction X.

[0082] An armrest assembly is also connected to the frame 11. The armrest assembly includes a first armrest 100 and a second armrest 200 (one of the first armrest 100 and the second armrest 200 is a left armrest and the other is a right armrest) arranged opposite each other along a second direction Y. The first armrest 100 and the second armrest 200 are respectively mounted on the left and right sides of the body 10. The first direction X, the second direction Y, and the third direction Z are three directions perpendicular to each other in three-dimensional space.

[0083] To facilitate user control, a drive device (not shown) is installed below the seat 12. The drive device includes a drive board chip, which is used to drive the wheels 15 in response to a drive signal. A remote control device 300 connected to the drive device is installed on the first armrest 100 or the second armrest 200. The user can use the remote control device 300 to control the forward or reverse movement of the wheels 15. Other auxiliary devices can also be installed on the armrests to expand their functions.

[0084] In this embodiment, the remote control device 300 further includes a remote control rod and a first circuit board. The first circuit board is disposed inside the remote control device. The remote control rod is located on the surface of the remote control device. The remote control rod is communicatively connected to the first circuit board.

[0085] like Figure 5 and Figure 6As shown, the mobility scooter may further include a first auxiliary device 400. The remote control device 300 and the first auxiliary device 400 may be installed on the first armrest 100 and the second armrest 200 respectively. The specific installation positions may be selected according to user needs.

[0086] Figure 7 This is a schematic diagram of the first auxiliary device from bottom to top. Figure 8 FIG. 4 is a schematic diagram of the first auxiliary device 400 from top to bottom. Figure 7 and Figure 8 As shown, the first auxiliary device 400 includes a first housing 401 and a second housing 402 disposed opposite each other. The first housing 401 and the second housing 402 are detachably connected. As can be understood from the accompanying drawings, in this embodiment, the first housing 401 and the second housing 402 are disposed opposite each other along a third direction Z. The first auxiliary device 400 also includes a second circuit board 440 disposed in a cavity between the first housing 401 and the second housing 402.

[0087] In some embodiments, the main control chip 1031 and the first CAN module 1035 are located on the first circuit board, the expansion board chip 1032, the second CAN module 1036, the output circuit 101, the touch control circuit 102, the drive circuit 104 and the lighting device 105 are located on the second circuit board 440, and the CAN connection bus 1038 is located in the main body, thereby connecting the first circuit board and the second circuit board 440 together.

[0088] In other embodiments, there are two lighting devices, designated as a first lighting device and a second lighting device, and two drive circuits, designated as a first drive circuit and a second drive circuit. The main control chip 1031, the first CAN module 1035, the first drive circuit, and the first lighting device are located on a first circuit board, while the expansion board chip 1032, the second CAN module 1036, the touch control circuit 102, the output circuit 101, the second drive circuit, and the second lighting device are located on a second circuit board 440. This allows the mobility scooter to be illuminated by both lighting devices when traveling at night or in dimly lit environments, further improving safety. In practical applications, the first drive circuit and the second drive circuit may have the same circuit structure.

[0089] In one possible implementation, the second housing 402 of this embodiment is provided with a touch area 4021 and a touch spring retaining groove 4022. The touch area 4021 serves as a barrier between the touch spring 4401 and the user's finger. The touch spring 4401 is located within the touch spring retaining groove 4022 between the first housing 401 and the second housing 402. The first auxiliary device 400 may further include a waterproof rubber stopper 403 to protect the first auxiliary device 400.

[0090] As an implementation method, the first armrest or the second armrest includes a lighting device, and the lighting device on the first armrest or the second armrest is controlled by touch. The lighting device can be a lighting lamp, such as an LED lamp, and the lighting lamp can be in a non-lighting state / non-operating state by default. When a user sits on the scooter, they can use their hands to gently touch, click, press or tap the touch area 4021 of the first armrest or the second armrest, and the capacitance formed by the touch spring and the finger changes. When the touch sensing chip 1021 detects the change in the capacitance formed by the touch spring and the finger, it generates a touch control signal Ctrl LED. Then, the output circuit 101 generates a control signal based on the received touch control signal Ctrl LED, and the drive circuit 104 controls the negative electrode of the lighting lamp to be connected to the ground terminal based on the control signal, so that the lighting lamp is in the lighting state / operating state. Then, when the user needs to turn off the light, they can use their hand to gently touch, click, press, or tap the touch area 4021 again. The capacitance formed by the touch spring and the finger changes again. When the touch sensing chip 1021 detects the change in capacitance formed by the touch spring and the finger, it generates a touch control signal Ctrl LED. Then, the output circuit 101 generates a control signal based on the received touch control signal Ctrl LED. The drive circuit 104 controls the negative electrode of the light to disconnect from the ground terminal based on the control signal, so that the light is in a non-illumination state / non-operating state. It should be noted here that the mobility scooter can also be called an electric wheelchair, an intelligent wheelchair, or a mobility scooter for the elderly.

[0091] As another implementation, the first armrest or the second armrest includes a lighting device, and the lighting device on the first armrest or the second armrest is controlled by a button. The lighting device can be a lighting lamp, such as an LED lamp. The first control unit K1 is a first switch key, and the second control unit K2 is a second switch key. The first switch key and the second switch are in the disconnected state by default, so that the lighting lamp is in a non-lighting state / non-working state. When the user needs to turn on the lighting lamp, he can press the first switch key and the second switch key. After pressing the first switch key and the second switch key, the main control chip 1031 can send the MCU control signal KEY OUT to the expansion board chip 1032. The expansion board chip 1032 sends the MCU control signal KEY OUT to the output circuit 101. The output circuit 101 outputs a control signal according to the MCU control signal KEY OUT. The drive circuit 104 receives the control signal and controls the lighting lamp to be connected to the ground terminal, so that the lighting lamp is in a lighting state / working state. Then, when the user needs to turn off the light, he can press the first on / off key and the second on / off key, so that the main control chip 1031 cannot send the MCU control signal KEY OUT, thereby disconnecting the light from the ground terminal, and putting the light in a non-lighting state / non-working state.

[0092] As another implementation, the first and second armrests include lighting devices, and the lighting devices on the first and second armrests are controlled by touch and keystrokes, respectively. For example, the lighting device on the first armrest is controlled by touch, while the lighting device on the second armrest is controlled by keystrokes. The lighting devices may be lamps, such as LED lamps. For ease of description, the lamp on the first armrest is referred to as the first lamp, and the lamp on the second armrest is referred to as the second lamp. The first lamp and the second lamp are in a non-illuminating / non-operating state by default. While sitting in the mobility scooter, a user can lightly touch, click, press, or tap the touch area of ​​the first armrest. This causes a change in capacitance formed by the touch spring and the finger. When the touch sensing chip detects this change in capacitance, it generates a touch control signal Ctrl LED. The output circuit 101 then generates a control signal based on the received touch control signal Ctrl LED. The driver circuit 104 controls the connection of the cathode of the first lamp to the ground terminal based on the control signal, thereby activating the lighting / operating state of the first lamp. At the same time, the user can press the first power key and the second power key on the second armrest. After pressing the first power key and the second power key, the main control chip 1031 can send the MCU control signal KEYOUT to the expansion board chip 1032, and the expansion board chip 1032 sends the MCU control signal KEY OUT to the output circuit 101. The output circuit 101 outputs the control signal according to the MCU control signal KEY OUT, and the drive circuit 104 receives the control signal and controls the first lighting lamp to be connected to the ground terminal, so that the first lighting lamp is in the lighting state / working state.

[0093] Then, when the user needs to turn off the first light, they can again use their hand to gently touch, click, press, or tap the touch area 4021 to disconnect the cathode of the first light from the ground terminal, thereby placing the first light in a non-illuminating state / non-operating state. When the user needs to turn off the second light, they can press the first on / off key and the second on / off key to prevent the main control chip 1031 from sending the MCU control signal KEY OUT, thereby disconnecting the second light from the ground terminal and placing the second light in a non-illuminating state / non-operating state.

[0094] As an implementation, the positions of the first armrest 100 and the second armrest 200 are interchangeable. Due to the characteristics of CAN, even when the positions of the first armrest 100 and the second armrest 200 are interchanged, the lighting device 105 can still be controlled to be in an active state via the touch control signal KEY OUT and / or the MCU control signal Ctrl LED. Specifically, the first armrest 100 can be the left armrest and the second armrest 200 can be the right armrest, or the first armrest 100 can be the right armrest and the second armrest 200 can be the left armrest.

[0095] The mobility scooter provided in the present application adds a lighting device and simultaneously receives a touch signal sent by a touch control circuit and / or an MCU control signal sent by a main control circuit through an output circuit to control whether the lighting device is in a working state, thereby being able to control the lighting device of the mobility scooter to operate at night or in dimly lit environments, thereby improving the driving safety of the mobility scooter at night or in dimly lit environments.

[0096] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the aforementioned embodiments, those skilled in the art will appreciate that they may modify the technical solutions described in the aforementioned embodiments or replace some or all of the technical features therein with equivalents. However, such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the various embodiments of this application.

Claims

1. A mobility scooter, characterized in that: include: Output circuit, touch control circuit, main control circuit, drive circuit and lighting device; The output circuit has a first input end connected to the output end of the touch control circuit to receive a touch control signal output by the touch control circuit, and / or a second input end connected to the output end of the main control circuit to receive an MCU control signal output by the main control circuit, and the output circuit is configured to output a control signal according to the touch control signal and / or the MCU control signal; The driving circuit has a first end connected to the output end of the output circuit, a second end connected to the first end of the lighting device, and a third end connected to the ground end. The driving circuit is used to control whether the first end of the lighting device is connected to the ground end according to the control signal, so as to control whether the lighting device is in an operating state; The output circuit includes: a first chip resistor and / or a second chip resistor; The first chip resistor has a first end serving as the first input end of the output circuit and connected to the output end of the touch control circuit, and a second end serving as the output end of the output circuit and connected to the first end of the drive circuit, for connecting the output end of the touch control circuit and the first end of the drive circuit; The second chip resistor has a first end serving as the second input end of the output circuit, connected to the output end of the main control circuit, and a second end serving as the output end of the output circuit, connected to the first end of the drive circuit, for connecting the output end of the main control circuit and the first end of the drive circuit; The driving circuit includes a triode and a transistor; The transistor has a base as the first end of the driving circuit, a collector connected to the first power supply end, and an emitter connected to the ground end, and the transistor is in an on or off state under the action of the control signal; The transistor has a gate connected to the collector of the triode, a first end serving as the second end of the drive circuit and connected to the first end of the lighting device, and a second end serving as the third end of the output circuit and connected to the ground end; When the triode is in the on state, the transistor is in the off state to control the first end of the lighting device to be disconnected from the ground end; when the triode is in the off state, the transistor is in the on state to control the first end of the lighting device to be connected to the ground end.

2. The mobility scooter according to claim 1, characterized in that: The touch control circuit includes: a touch sensing chip, a touch device and a first capacitor; The touch sensing chip has a touch key input pin connected to the first end of the touch device and the first end of the first capacitor, and an output pin serving as the output end of the touch control circuit, configured to output a touch control signal when a change in capacitance of the touch device is detected; The second end of the first capacitor is connected to the ground end and is used to adjust the sensitivity of the touch device.

3. The mobility scooter according to claim 2, characterized in that: The touch device includes a touch spring and an isolation member. The first end of the touch spring serves as the first end of the touch device and is connected to the touch key input pin. The second end of the touch spring is close to the isolation member.

4. The mobility scooter according to claim 3, characterized in that: The mobility scooter includes a first armrest and a second armrest, the first armrest or the second armrest includes a first auxiliary device, the first auxiliary device includes a first shell, a second shell, and a second circuit board located in a cavity between the first shell and the second shell, the second shell being provided with a touch area and a touch spring limiting groove; The output circuit, the touch control circuit, the drive circuit and the lighting device are located on the second circuit board, and the touch spring is located in the touch spring limiting groove.

5. The mobility scooter according to claim 1, characterized in that: The main control circuit includes: a main control chip, a CAN module, an expansion board chip, a first control unit and a second control unit; The main control chip has a first end connected to the second end of the first control unit, a second end connected to the second end of the second control unit, and an output end connected to the first end of the CAN module, and is used to output the MCU control signal when the first control unit and the second control unit are in working state; The CAN module has a second end connected to the first end of the expansion board chip, and is used to transmit the MCU control signal to the first end of the expansion board chip; The expansion board chip has an output end serving as the output end of the main control circuit, connected to the second input end of the output circuit, and configured to transmit the MCU control signal to the second input end of the output circuit; The first control unit has a first end connected to the ground end, and when the button is connected to the first end and the second end of the first control unit, the first control unit is in an operating state; The second control unit has a first end connected to the ground end, and when the button is connected to the first end and the second end of the second control unit, the second control unit is in an operating state.

6. The mobility scooter according to claim 5, characterized in that: The CAN module includes: a first CAN module, a second CAN module and a CAN connection bus; The first CAN module has a first end serving as the first end of the CAN module and connected to the output end of the main control chip, and a second end connected to the CAN connection bus for transmitting the MCU control signal to the CAN connection bus; The CAN connection bus is connected to a first end of the second CAN module and is used to transmit the MCU control signal to the second CAN module; The second end of the second CAN module serves as the second end of the CAN module and is connected to the first end of the expansion board chip, so as to transmit the MCU control signal to the expansion board chip.

7. The mobility scooter according to claim 6, characterized in that: The mobility scooter comprises: a body and a handrail assembly, wherein the handrail assembly comprises: a first handrail and a second handrail; The main control chip and the first CAN module are located on the first armrest; The expansion board chip, the second CAN module, the touch control circuit, the output circuit, the drive circuit and the lighting device are located on the second armrest; The CAN connection bus is located in the body.

8. The mobility scooter according to claim 6, characterized in that: The mobility scooter comprises: a body and a handrail assembly, wherein the handrail assembly comprises a first handrail and a second handrail; The lighting device includes a first lighting device and a second lighting device, and the driving circuit includes a first driving circuit and a second driving circuit; The main control chip, the first CAN module, the first driving circuit and the first lighting device are located on the first armrest; The expansion board chip, the second CAN module, the touch control circuit, the output circuit, the second drive circuit and the second lighting device are located on the second armrest; The CAN connection bus is located in the body.

9. The mobility scooter according to claim 7 or 8, characterized in that: The first armrest is the left armrest of the scooter, and the second armrest is the right armrest of the scooter, or the first armrest is the right armrest of the scooter, and the second armrest is the left armrest of the scooter.

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