Scooter

Abstract

The embodiment of the utility model provides a scooter. The scooter comprises a scooter body; the at least two battery cabins are arranged on the vehicle body, and at least two placing areas for power supply batteries are formed in the at least two battery cabins; the at least two power supply batteries are placed in the at least two battery cabins, and the power supply batteries are connected with a vehicle control system of the scooter and used for supplying power to the scooter. The scooter achieves the effect of improving the use flexibility of the scooter.

Description

Technical Field

[0001] The present application relates to vehicle technology, and in particular to a mobility scooter. Background Art

[0002] With the development of new energy vehicles, mobility scooters, as auxiliary vehicles, provide travel convenience for special groups of people. Mobility scooters are usually powered by batteries. Traditional mobility scooters are powered by a battery. If the battery runs out of power, the battery needs to be charged before use.

[0003] However, the existing mobility scooters have the problem of low flexibility during use. Utility Model Content

[0004] The embodiment of the present application provides a mobility scooter to achieve the effect of improving the flexibility of use of the mobility scooter.

[0005] In a first aspect, an embodiment of the present application provides a mobility scooter, comprising:

[0006] Vehicle body;

[0007] At least two battery compartments are disposed on the vehicle body, and the at least two battery compartments form a placement area for at least two power supply batteries;

[0008] At least two power supply batteries are placed in at least two battery compartments, and the power supply batteries are connected to the vehicle control system of the mobility scooter to supply power to the mobility scooter.

[0009] In a possible implementation, at least two battery compartments are dual battery compartments, and the dual battery compartments are disposed in the chassis of the vehicle body. The dual battery compartments are provided with a middle partition for separating the placement areas of the two power supply batteries.

[0010] In a possible implementation, the power supply battery includes a first power supply battery and a second power supply battery; and the vehicle control system includes:

[0011] A battery switching circuit, connected to the first power supply battery and the second power supply battery respectively;

[0012] The circuit control module is connected to the battery switching circuit and is used to select the first power supply battery or the second power supply battery to supply power to the scooter by controlling the battery switching circuit.

[0013] In a possible implementation, the battery switching circuit includes a switching module, a first transistor, and a diode;

[0014] A first end of the switching module is connected to a first power supply battery, a second end of the switching module is connected to a second power supply battery, and a third end of the switching module is connected to a circuit control module;

[0015] The drain of the first transistor is connected to the fourth end of the switching module, and the gate of the first transistor is connected to the circuit control module;

[0016] The anode of the diode is connected to the drain of the first transistor and the fourth terminal of the switching module respectively, and the cathode of the diode is connected to the fifth terminal of the switching module.

[0017] In one possible implementation, the vehicle control system includes:

[0018] A charging circuit, used for charging the first power supply battery or the second power supply battery;

[0019] A communication circuit module, used to monitor the charging and discharging status of the power supply battery;

[0020] The circuit control module is connected to the communication circuit module and the charging circuit. The circuit control module is used to select a power supply battery with lower power for charging through a battery switching circuit when the power supply battery is in a charging state.

[0021] In a possible implementation, the communication circuit module includes:

[0022] A communication chip, wherein a data transceiver end of the communication chip is connected to a data transceiver end of the circuit control module;

[0023] The protection circuit has two ends connected to the high level end and the low level end of the communication chip respectively.

[0024] In a possible implementation, the charging circuit includes:

[0025] A charging management chip, wherein the input end of the charging management chip is used to connect to an external power supply, and the output end of the charging management chip is respectively connected to the first power supply battery and the second power supply battery;

[0026] An isolation circuit, wherein a first end of the isolation circuit is connected to the circuit control module, and a second end of the isolation circuit is connected to the output end of the charging management chip.

[0027] In one possible implementation, the vehicle control system includes:

[0028] A first battery detection circuit, wherein a first end of the first battery detection circuit is connected to a first power supply battery, and a second end of the first battery detection circuit is connected to a circuit control module, and is used to detect the power of the first power supply battery;

[0029] A second battery detection circuit, wherein a first end of the second battery detection circuit is connected to a second power supply battery, and a second end of the second battery detection circuit is connected to a circuit control module, is used to detect the power level of the second power supply battery.

[0030] In a possible implementation, the first battery detection circuit includes: a second transistor, a third transistor, a first resistor, a first capacitor, a breakdown diode, a second resistor, a third resistor, and a second capacitor;

[0031] One end of the first resistor and the first capacitor is connected to the gate of the second transistor, the collector of the third transistor and the positive electrode of the breakdown diode respectively;

[0032] The other end of the first resistor and the first capacitor is connected to the source of the second transistor, the first power supply battery and the cathode of the breakdown diode respectively;

[0033] One end where the second resistor and the third resistor are connected is connected to the drain of the second transistor;

[0034] One end of the second capacitor is respectively connected to the other end of the second resistor and the circuit control module, and the other end of the second capacitor is respectively connected to the other end of the third resistor and the emitter of the third transistor;

[0035] The base of the third transistor is connected to the circuit control module.

[0036] In one possible implementation, the vehicle control system includes:

[0037] Amplifying circuit, two ends of the amplifying circuit are respectively connected to the circuit control module.

[0038] In a possible implementation, the amplifier circuit includes:

[0039] An operational amplifier module, wherein a first input terminal of the operational amplifier module is connected to the circuit control module, a second input terminal of the operational amplifier module is used for grounding, and an output terminal of the operational amplifier module is connected to the circuit control module;

[0040] A fourth resistor, one end of the fourth resistor is connected to the output end of the operational amplifier module and the circuit control module respectively, and the other end of the fourth resistor is connected to the second input end of the operational amplifier module.

[0041] In a possible implementation manner, the number of power supply batteries is two, and the maximum battery capacity of any one of the dual power supply batteries is 300Wh.

[0042] The mobility scooter provided in the embodiment of the present application is provided with at least two battery compartment structures on the vehicle body to form a placement area for at least two power supply batteries, in which at least two power supply batteries can be placed. When the power of one power supply battery is used up, the other power supply battery can be used to power the mobility scooter, and the used-up battery can be taken out for charging. In this way, using at least two power supply batteries in at least two battery compartments for powering can increase the battery life of the mobility scooter and ensure that the mobility scooter can be used at any time, thereby achieving the effect of improving the flexibility of use of the mobility scooter. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0044] Figure 1 The structure of the walking vehicle provided in this application is shown in FIG. Figure 1 ;

[0045] Figure 2 The structure of the walking vehicle provided in this application is shown in FIG. Figure 2 ;

[0046] Figure 3 A schematic diagram of the structure of the vehicle control system of the scooter provided in this application Figure 1 ;

[0047] Figure 4 A schematic diagram of the structure of the vehicle control system of the scooter provided in this application Figure 2 ;

[0048] Figure 5 A schematic diagram of the structure of the vehicle control system of the scooter provided in this application Figure 3 ;

[0049] Figure 6 A schematic diagram of the structure of the vehicle control system of the scooter provided in this application Figure 4 .

[0050] Reference numerals:

[0051] 1: vehicle body; 10: chassis; 20: seat; 30: backrest; 50: wheel; 60: battery compartment; 70: power supply battery; 80: battery cover; 310: battery switching circuit; 320: circuit control module; 311: switching module; N1: first transistor; D2: diode; 710: first power supply battery; 720: second power supply battery; 330: charging circuit; 331: charging management chip; 332: isolation circuit; 340: communication circuit module; 341: communication chip; 342: protection circuit; 360: first battery detection circuit; 370: second battery detection circuit; P2: second transistor; N3: third transistor; R7: first resistor; C2: first capacitor; D5: breakdown diode; R8: second resistor; R9: third resistor; C3: second capacitor; 380: amplifier circuit; R14: fourth resistor; 381: operational amplifier module.

[0052] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0053] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0054] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, system, product or device comprising a series of steps or units is not necessarily limited to those units clearly listed, but may include other steps or units that are not clearly listed or inherent to these products or devices.

[0055] In the prior art, a mobility scooter is usually powered by a battery to drive the wheels 50 to move. However, a conventional mobility scooter usually has only one battery to power it. If the battery runs out of power, the battery needs to be charged before use. This results in a low flexibility in use of the mobility scooter.

[0056] The mobility scooter provided in the present application can hold at least two power supply batteries by providing at least two battery compartments in the vehicle body. When one power supply battery runs out of power, the other power supply battery can continue to be used, and the used power supply battery can be taken out and continued to be charged, thereby solving the technical problem of low flexibility in the use of mobility scooters.

[0057] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0058] Figure 1 The structure of the walking vehicle provided in this application is shown in FIG. Figure 1 , Figure 2 The structure of the walking vehicle provided in this application is shown in FIG. Figure 2 ,like Figure 1 As shown and Figure 2As shown, the mobility scooter comprises a vehicle body 1 .

[0059] The vehicle body 1 may refer to the overall frame of a mobility scooter, and the vehicle body 1 includes a chassis 10, a seat 20, a backrest 30, and wheels 50. The mobility scooter may be a wheelchair, and the structure of the dual battery compartment 60 provided in the present application may be applied to a wheelchair.

[0060] The mobility scooter further includes at least two battery compartments 60 , which are disposed in the vehicle body 1 and form a placement area for at least two power supply batteries.

[0061] Among them, at least two battery compartments 60 refer to battery compartments that can provide placement positions for at least two power batteries. The battery compartment 60 can place at least one power battery to power the vehicle. For example, the double battery compartment can place two power batteries to power the vehicle. When placing two power batteries for powering the vehicle, one of the power batteries can be selected to power the vehicle. For example, when one power battery is out of power, a power battery can be placed to power the vehicle, so that the power battery with no power can be taken out for charging.

[0062] The scooter further comprises at least two power supply batteries 70 placed in the at least two battery compartments 60 . The power supply batteries are connected to the vehicle control system of the scooter to supply power to the scooter.

[0063] Among them, at least two power supply batteries 70 refer to at least two batteries that power the scooter. The power supply battery can be used to power the scooter, and the power supply battery can be any kind of battery, for example, the power supply battery can be any kind of lithium battery, lead-acid battery, and graphene battery. The vehicle control system refers to the control system of the scooter, and the movement of the scooter can be driven by the control system of the scooter, and the power supply battery can be used to power the vehicle control system.

[0064] For example, the mobility scooter may include: Figure 1 The vehicle body 1 shown, and comprising Figure 1 The chassis 10 of the vehicle body 1 can be used to support the entire scooter's support frame and can be used to place the scooter's user's feet. In the embodiment provided in the present application, at least two battery compartments 60 can be provided in the chassis 10 of the scooter to facilitate the placement of at least one power supply battery. For example, at least two battery compartments 60 can be recessed in the chassis 10 of the vehicle body 1 so that the user can properly place his feet on the chassis 10 of the scooter during use.

[0065] At least two power supply batteries 70 can be placed in at least the two battery compartments 60 mentioned above. For example, the dual power supply batteries 70 can be detachably placed in the dual battery compartment 60. Any power supply battery can be taken out in a detachable manner so that when one power supply battery has no power, the power supply battery can be taken out for charging, and the power supply battery that has not been taken out can continue to power the scooter. For example, the dual power supply batteries 70 can be connected to the vehicle control system respectively, and the vehicle control system of the scooter can be powered by the two power supply batteries placed in the dual battery compartment 60, so that the scooter can be powered, so that the user can control the use of the scooter through the vehicle control system. The dual battery can also power various components of the scooter, for example, it can power the lights of the scooter. The dual battery method can be to select any power supply battery for power supply. For example, the vehicle control system can select the power supply battery with more power to power the scooter according to the power of the power supply battery, or the user of the scooter can manually select the use of any power supply battery. When the vehicle control system detects that one of the power supply batteries is taken out, it can use the power supply battery that has not been taken out for power supply. The selection of the power supply battery by the above vehicle control system can be realized by the existing battery selection method, or the user of the mobility scooter can select the power supply battery by using the battery power displayed by the mobility scooter.

[0066] Optionally, at least two battery compartments may be dual battery compartments disposed at the same position on the vehicle body 1, or may be multiple battery compartments disposed at different positions on the vehicle body 1. For example, at least two battery compartments may be disposed under the seat 20 and in the chassis 10 of the vehicle, respectively.

[0067] Alternatively, if Figure 1 and Figure 2 As shown, at least two battery compartments 60 are dual battery compartments 60, which are arranged in the chassis 10 of the vehicle body 1, and the dual battery compartment 60 is provided with a middle partition for separating the placement areas of the two power supply batteries 70. The dual battery compartment 60 can be understood as two battery compartments, which can be used to place two power supply batteries.

[0068] The chassis 10 of the vehicle body 1 may be a part of the frame of the mobility scooter. The chassis 10 of the vehicle body 1 may be used to provide a foot placement position for the user of the mobility scooter during use of the mobility scooter.

[0069] The dual battery compartment 60 is provided with a middle partition, which can form a placement area for two power supply batteries. In this way, when there is a middle partition, two power supply batteries can be placed for power supply, or one power supply battery can be placed for use alone, so that when one power supply battery is out of power, the dead power supply battery can be taken out for charging, and one power supply battery can be used alone for power supply, thereby ensuring that the mobility scooter can be used at any time, thereby improving the flexibility of use of the mobility scooter.

[0070] The electric capacity of a single power supply battery of the scooter provided in the embodiment of the present application can be sufficient to carry the power supply battery on board an airplane, so that the scooter can be carried on board an airplane and can be used normally when arriving at the destination, thereby further improving the performance of flexible use. Optionally, the number of power supply batteries is two, and the maximum battery capacity of any one of the dual power supply batteries is 300Wh.

[0071] Optionally, the scooter may further include a battery cover 80, which may be placed in conjunction with the dual battery compartment 60. For example, the size of the battery cover 80 may be determined according to the size of the opening of the dual battery compartment 60. The battery cover 80 may be placed above the dual battery compartment 60. Figure 2 In this way, the dual power supply battery 70 can be protected.

[0072] The mobility scooter provided in the embodiment of the present application is provided with at least a battery compartment 60 structure in the vehicle body 1, and the dual battery compartment 60 forms a placement area for at least two power supply batteries, which can be used to place two power supply batteries. When the power of one power supply battery is used up, the other power supply battery can be used to power the mobility scooter, and the used-up battery can be taken out for charging. In this way, using the dual power supply batteries 70 of the dual battery compartment 60 for power supply can increase the battery life of the mobility scooter and ensure that the mobility scooter can be used at any time, thereby achieving the effect of improving the flexibility of use of the mobility scooter.

[0073] Figure 3 A schematic diagram of the structure of the vehicle control system of the scooter provided in this application Figure 1 ,like Figure 3 As shown, the vehicle control system of the scooter is described in detail. The power supply battery of the scooter includes a first power supply battery 710 and a second power supply battery 720; the vehicle control system includes:

[0074] The battery switching circuit 310 is connected to the first power supply battery 710 and the second power supply battery 720 respectively;

[0075] The circuit control module 320 is connected to the battery switching circuit 310 and is used to select the first power supply battery 710 or the second power supply battery 720 to supply power to the mobility scooter by controlling the battery switching circuit 310 .

[0076] The battery switching circuit 310 may be a circuit for switching and selecting a power supply battery. For example, the battery switching circuit 310 may be used to select a battery for powering a mobility scooter, and at the same time, the battery to be charged may be selected through the battery switching circuit 310. The circuit control module 320 may be a module of a main control circuit of a vehicle control system. For example, the circuit control module 320 may be an MCU (Microcontroller Unit) of a vehicle control system.

[0077] Exemplarily, the battery switching circuit 310 can be connected to the first power supply battery 710 and the second power supply battery 720 respectively, and the circuit control module 320 is connected to the battery switching circuit 310. In this way, the circuit control module 320 can control the battery switching circuit 310 to select the first power supply battery 710 or the second power supply battery 720 to power the mobility scooter, and the battery switching circuit 310 can also select the first power supply battery 710 or the second power supply battery 720 to be charged.

[0078] Optionally, the user of the mobility scooter can control the circuit control module 320 through a human-computer interaction device to control the battery switching circuit 310 to switch between the first power supply battery 710 and the second power supply battery 720, or the switching between the first power supply battery 710 and the second power supply battery 720 can be controlled by a preset program of the MCU of the circuit control module 320. The above control methods of the circuit control module 320 can be implemented by control programs of the prior art.

[0079] In the specific implementation, Figure 3 As shown, Figure 3 (a) is the battery switching circuit 310, and (b) is the circuit control module 320. The battery switching circuit 310 includes a switching module 311, a first transistor N1, and a diode D2.

[0080] A first end of the switch module 311 is connected to the first power supply battery 710 , a second end of the switch module 311 is connected to the second power supply battery 720 , and a third end of the switch module 311 is connected to the circuit control module 320 ;

[0081] The drain of the first transistor N1 is connected to the fourth end of the switching module 311, and the gate of the first transistor N1 is connected to the circuit control module 320;

[0082] The anode of the diode D2 is connected to the drain of the first transistor N1 and the fourth terminal of the switching module 311 , respectively, and the cathode of the diode D2 is connected to the fifth terminal of the switching module 311 .

[0083] The first transistor N1 may be an NMOS tube. The circuit control module 320 may be an MCU, which may include multiple IO ports, each of which may be connected to multiple circuits to achieve communication between circuits, and the communication between circuits may be achieved through a program in the prior art.

[0084] Specifically, the first end of the switching module 311 can be connected to the first power supply battery 710, and the second end of the switching module 311 can be connected to the second power supply battery 720. In this way, the first power supply battery 710 or the second power supply battery 720 can be selected for charging and discharging through the switching module 311. The third end of the switching module 311 can be connected to the circuit control module 320, so as to control the charging and discharging of the switching module 311 through the third end of the circuit control module 320. As an example, Figure 3 The ports with black dots in the switch module 311 in (a) may be connected to Figure 3 (b) The ports of the IO ports of the MCU.

[0085] Specifically, the battery switching circuit 310 further includes a resistor R1, a resistor R2, and a diode D2. The drain of the first transistor N1 is connected to the fourth terminal of the switching module 311, and the gate of the first transistor N1 is connected to the circuit control module 320 through the resistor R1. Figure 3 The end of resistor R1 with a black dot in (a) can be connected to Figure 3 In (b), the IO port with a black dot in the MCU, the source of the first transistor N1 is used for grounding, the positive electrode of the diode D2 is connected to the source of the first transistor N1, the negative electrode of the diode D2 is respectively connected to the drain of the first transistor N1 and the fourth terminal of the switching module 311, and the gate of the first transistor N1 and the source of the first transistor N1 are connected through a resistor R2. The positive electrode of the diode D2 is respectively connected to the fourth terminal of the switching module 311 and the drain of the first transistor N1, and is also connected to the negative electrode of the diode D2. The negative electrode of the diode D2 is connected to the fifth terminal of the switching module 311, and can be connected to the working voltage VCC with the fifth terminal of the switching module 311.

[0086] Thus, through the structure of the battery switching circuit 310, the circuit control module 320 can control the circuit switching module 311 to complete the charge and discharge switching of the first power supply battery 710 or the second power supply battery 720. For example, the circuit control module 320 can charge the power supply battery with lower power according to the power of the first power supply battery 710 and the power of the second power supply battery 720. In this way, the alternating charging between the first power supply battery 710 and the second power supply battery 720 can be completed, avoiding charging only the power supply battery with higher power. The charging method for the first power supply battery 710 and the second power supply battery 720 in the above example can be implemented by the charging program in the prior art.

[0087] Figure 4 A schematic diagram of the structure of the vehicle control system of the scooter provided in this application Figure 2 ,like Figure 4 As shown, combined Figure 3 , the vehicle control system of the scooter is described in detail, the power supply battery of the scooter includes a first power supply battery 710 and a second power supply battery 720; the vehicle control system includes:

[0088] The charging circuit 330 is used to charge the first power supply battery 710 or the second power supply battery 720;

[0089] The communication circuit module 340 is used to monitor the charging and discharging status of the power supply battery;

[0090] The circuit control module 320 is connected to the communication circuit module 340 and the charging circuit 330 . The circuit control module 320 is used to select a power supply battery with a lower power for charging through the battery switching circuit 310 when the power supply battery is in a charging state.

[0091] The charging circuit 330 may be a circuit for charging the first power supply battery 710 and the second power supply battery 720. The communication circuit module 340 may be a CAN communication circuit, which may be used for communication of the scooter and may communicate via a CAN bus.

[0092] For example, the charging circuit 330 can be connected to an external power source for charging the first power supply battery 710 or the second power supply battery 720. The communication circuit module 340 can monitor the charging and discharging status of the first power supply battery 710 and the second power supply battery 720 through the CAN bus. The circuit control module 320 can be connected to the communication circuit module 340 and the charging circuit 330 respectively. When the first power supply battery 710 or the second power supply battery 720 is in the charging state, the circuit control module 320 can control the charging state of the first power supply battery 710 or the second power supply battery 720 by controlling the charging state of the first power supply battery 710 or the second power supply battery 720. Figure 3 The battery switching circuit 310 shown switches to a power supply battery with a lower power for charging. For example, the circuit control module 320 can select the first power supply battery 710 or the second power supply battery 720 with a lower power for charging through a program of the prior art, or the user of the scooter can automatically select the first power supply battery 710 or the second power supply battery 720 to be charged for charging. In this way, it can be ensured that both the first power supply battery 710 and the second power supply battery 720 can be charged.

[0093] In the specific implementation, Figure 4 , combined with Figure 3 As shown, Figure 4 (a) is the charging circuit 330 , and (b) is the communication circuit module 340 ; the communication circuit module 340 includes a communication chip 341 and a protection circuit 342 .

[0094] The communication chip 341 has a data transceiver end connected to the data transceiver end of the circuit control module 320 ; the protection circuit 342 has two ends connected to the high level end and the low level end of the communication chip 341 .

[0095] The communication chip 341 may be a CAN chip. The data transceiver end of the communication chip 341 may be Figure 4 The data transceiver end of the circuit control module 320 refers to the D and R ports in (a). Figure 3 (b) shows the IO port of the circuit control module 320.

[0096] Specifically, the communication chip 341 can receive data via the CAN bus. Figure 4 The data transceiver end of the communication chip 341 in (a) can be connected to Figure 3 The IO port of the circuit control module 320 in (b) is used to realize the communication between the CAN chip and the MCU of the vehicle control system. The protection circuit 342 has two ends connected to the high level end and the low level end of the communication chip 341, wherein the high level end refers to Figure 4 The CANH port in (a) is the low level end, and the CANL port is the low level end. The specific structure of the protection circuit 342 can be Figure 4 The protection circuit 342 in (a) is implemented.

[0097] Specifically, the communication circuit module 340 may also include Figure 4 The peripheral circuit of the communication chip 341 in (a), for example, the capacitor between the GND port and the VCC port, may have a specific structure as follows: Figure 4 As shown in (a).

[0098] In the specific implementation, Figure 4 , combined with Figure 3 As shown, Figure 4 (a) is the charging circuit 330 , and (b) is the communication circuit module 340 ; the charging circuit 330 includes a charging management chip 331 and an isolation circuit 332 .

[0099] The input end of the charging management chip 331 is used to connect to an external power source, and the output end of the charging management chip 331 is connected to the first power supply battery 710 and the second power supply battery 720 respectively;

[0100] A first end of the isolation circuit 332 is connected to the circuit control module 320 , and a second end of the isolation circuit 332 is connected to an output end of the charging management chip 331 .

[0101] The charging management chip 331 may be used to manage the charging function, and the isolation circuit 332 may be used for the electrical isolation of the charging circuit 330 . The isolation circuit 332 may include a circuit of a photocoupler.

[0102] Specifically, the input end of the charging management chip 331 can be used to connect to an external power source, and to access an external voltage to charge the mobility scooter; wherein, the input end of the charging management chip 331 refers to the VIN port of the charging management chip 331. The output end of the charging management chip 331 is connected to the first power supply battery 710 and the second power supply battery 720, respectively, and is used to charge the first power supply battery 710 or the second power supply battery 720; wherein, the output end of the charging management chip 331 refers to the VOUT port of the charging management chip 331.

[0103] Specifically, the first end of the isolation circuit 332 can be the two input ends of the photocoupler. The second end of the isolation circuit 332 can be the output end of the photocoupler. The first input end of the photocoupler is connected to the circuit control module 320 in sequence through the resistor R3 and the diode D3. Among them, the first input end of the photocoupler is connected to one end of the resistor R3, the positive pole of the diode D3 is connected to the circuit control module 320, and the negative pole of the diode D3 is connected to the other end of the resistor R3. The first output end of the photocoupler is used for grounding, and the second output end of the photocoupler is connected to the VOUT end of the charging management chip 331 in sequence through the resistor R4 and the resistor R5.

[0104] like Figure 4 As shown in (a), the charging circuit 330 also includes a transistor N2, a resistor R6, a resistor R7, a transistor P1, a diode D4, and a capacitor C1. The collector of the transistor N2 is respectively connected to the second output end of the photocoupler and one end of the resistor R4, the emitter of the transistor N2 is used for grounding, the base of the transistor N2 is connected to the circuit control module 320 through the resistor R6, and the base of the transistor N2 and the emitter of the transistor N2 are connected through the resistor R7. The gate of the transistor P1 is respectively connected to the other end of the resistor R4 and one end of the resistor R5, the drain of the transistor P1 is connected to the positive electrode of the diode D4, the negative electrode of the diode D4 is connected to one end of the capacitor C1, the other end of the capacitor C1 is used for grounding, and the negative electrode of the diode D4 and one end of the capacitor C1 are also used to access the working voltage VCC. The source of the transistor P1 is respectively connected to the other end of the resistor R5 and the VOUT end of the charging management chip 331. Among them, the circuit composed of other capacitors in the charging circuit 330 is to stabilize the output of the charging voltage.

[0105] In this way, through the specific structure of the charging circuit 330 and the communication circuit module 340, the circuit control module 320 can control the power supply battery with lower power to be charged when the power supply battery is in the charging state, and the power supply batteries can be charged alternately to avoid the situation where the first power supply battery 710 or the second power supply battery 720 is not charged, thereby improving the endurance of the scooter and improving the flexibility of use of the scooter. The charging method for the first power supply battery 710 and the second power supply battery 720 in the above example can be implemented through the charging program in the prior art.

[0106] Figure 5 A schematic diagram of the structure of the vehicle control system of the scooter provided in this application Figure 3 ,like Figure 5 As shown, combined Figure 3 , the vehicle control system of the scooter is described in detail, the power supply battery 70 of the scooter includes a first power supply battery 710 and a second power supply battery 720; the vehicle control system includes:

[0107] A first battery detection circuit 360, wherein a first end of the first battery detection circuit 360 is connected to the first power supply battery 710, and a second end of the first battery detection circuit 360 is connected to the circuit control module 320, and is used to detect the power of the first power supply battery 710;

[0108] The second battery detection circuit 370 has a first end connected to the second power supply battery 720 and a second end connected to the circuit control module 320 for detecting the power level of the second power supply battery 720 .

[0109] The first battery detection circuit 360 may be a circuit for detecting the power level of the first power supply battery 710. The second battery detection circuit 370 may be a circuit for detecting the power level of the second power supply battery 720.

[0110] Exemplarily, the first end of the first battery detection circuit 360 can be connected to the first power supply battery 710, and the second end of the first battery detection circuit 360 can be connected to the circuit control module 320, so that the circuit control module 320 can receive the power of the first power supply battery 710 detected by the first battery detection circuit 360. The second battery detection circuit 370, the first end of the second battery detection circuit 370 can be connected to the second power supply battery 720, and the second end of the second battery detection circuit 370 can be connected to the circuit control module 320, so that the circuit control module 320 can receive the power of the second power supply battery 720 detected by the second battery detection circuit 370. Further, the circuit control module 320 can select the first power supply battery 710 or the second power supply battery 720 to be charged according to the power of the first power supply battery 710 and the power of the second power supply battery 720.

[0111] In a specific implementation, the first battery detection circuit 360 includes: a second transistor P2, a third transistor N3, a first resistor R7, a first capacitor C2, a breakdown diode D5, a second resistor R8, a third resistor R9, and a second capacitor C3;

[0112] One end of the first resistor R7 and the first capacitor C2 is connected to the gate of the second transistor P2, the collector of the third transistor N3 and the positive electrode of the breakdown diode D5 respectively;

[0113] The other end of the first resistor R7 and the first capacitor C2 is connected to the source of the second transistor P2, the first power supply battery 710 and the cathode of the breakdown diode D5 respectively;

[0114] One end where the second resistor R8 and the third resistor R9 are connected is connected to the drain of the second transistor P2;

[0115] One end of the second capacitor C3 is respectively connected to the other end of the second resistor R8 and the circuit control module 320, and the other end of the second capacitor C3 is respectively connected to the other end of the third resistor R9 and the emitter of the third transistor N3;

[0116] The base of the third transistor N3 is connected to the circuit control module 320 .

[0117] Specifically, the first battery detection circuit 360 also includes a resistor R10, a resistor R11, a resistor R12, and a resistor R13. One end of the first resistor R7 connected to the first capacitor C2 is respectively connected to the gate of the second transistor P2 and the positive electrode of the breakdown diode D5, and is also connected to the collector of the third transistor N3 through the resistor R11; the other end of the first resistor R7 connected to the first capacitor C2 is respectively connected to the source of the second transistor P2, the first power supply battery 710 and the negative electrode of the breakdown diode D5, and the source of the second transistor P2 is also connected to the first power supply battery 710; one end of the second resistor R8 connected to the third resistor R9 is connected to the drain of the second transistor P2 through the resistor R10, and the other end of the second resistor R8 is connected to The circuit control module 320 is connected to one end of the second capacitor C3; one end of the second capacitor C3 is respectively connected to the other end of the second resistor R8 and the circuit control module 320, the other end of the second capacitor C3 is respectively connected to the other end of the third resistor R9 and the emitter of the third transistor N3, and the other end of the third resistor R9 is also connected to the emitter of the third transistor N3; the base of the third transistor N3 is connected to the circuit control module 320 through the resistor R13, the base of the third transistor N3 and the emitter of the third transistor N3 are also connected through the resistor R12, and the end of the emitter of the third transistor N3 connected to the resistor R12 is also grounded. Figure 5 The endpoints with black dots can be connected Figure 3 The IO ports with black dots in the MCU in (b).

[0118] Specifically, the second battery detection circuit 370 and the first battery detection circuit 360 can be as follows Figure 5 The shown ones have the same circuit structure.

[0119] In this way, through the structure of the above-mentioned first battery detection circuit 360 and the second battery detection circuit 370, the power level of the first power supply battery 710 and the second power supply battery 720 can be detected, which is beneficial for the user of the mobility scooter to more clearly understand the power levels of the first power supply battery 710 and the second power supply battery 720. At the same time, the power level of the first power supply battery 710 and the second power supply battery 720 can be used to select the power supply battery that needs to be charged.

[0120] Figure 6 A schematic diagram of the structure of the vehicle control system of the scooter provided in this application Figure 4 ,like Figure 6 As shown, combined Figure 3 , the vehicle control system of the scooter is described in detail; the vehicle control system includes:

[0121] The amplifier circuit 380 has two ends connected to the circuit control module 320 respectively.

[0122] In a specific implementation, the amplifying circuit 380 includes: an operational amplifier module 381 and a fourth resistor R14.

[0123] An operational amplifier module 381, wherein a first input terminal of the operational amplifier module 381 is connected to the circuit control module 320, a second input terminal of the operational amplifier module 381 is grounded, and an output terminal of the operational amplifier module 381 is connected to the circuit control module 320;

[0124] A fourth resistor R14 , one end of which is connected to the output end of the operational amplifier module 381 and the circuit control module 320 , and the other end of which is connected to the second input end of the operational amplifier module 381 .

[0125] The operational amplifier module 381 refers to an operational amplifier.

[0126] Specifically, the positive input terminal of the operational amplifier module 381 is connected to the circuit control module 320 through a resistor, the negative input terminal of the operational amplifier module 381 is grounded through a resistor, and the output terminal of the operational amplifier module 381 is connected to the circuit control module 320. The fourth resistor R14 can be used as a feedback resistor, and one end of the fourth resistor R14 can be connected to the output terminal of the operational amplifier module 381 and the circuit control module 320 respectively, and the other end of the fourth resistor R14 is connected to the positive input terminal of the operational amplifier module 381 through a capacitor.

[0127] Specifically, other circuits of the amplifier circuit 380 can be as follows Figure 6 The structural connection shown, Figure 6 The endpoints of the black dots can be connected Figure 3 The IO ports with black dots in the MCU in (b).

[0128] The mobility scooter provided in the embodiment of the present application can amplify the signal to the circuit control module 320 through the structure of the above-mentioned amplifier circuit 380, and the circuit control module 320 can effectively process the signal.

[0129] The scooter provided by the embodiment of the present application, through the above-mentioned embodiments or a combination of multiple embodiments, is provided with a dual battery compartment structure in the chassis 10 of the vehicle body 1, and the dual battery compartment is provided with a middle partition, which has formed a placement area for two power supply batteries 70, and two power supply batteries 70 can be placed. When the power of one power supply battery 70 is used up, the other power supply battery 70 can be used to power the scooter, and the battery with the power out of power can be taken out for charging. In this way, the use of the dual power supply batteries 70 in the dual battery compartment for power supply can increase the battery life of the scooter, and ensure that the scooter can be used at any time, so as to achieve the effect of improving the flexibility of the use of the scooter. And it can complete the alternating charging between the first power supply battery 710 and the second power supply battery 720, avoiding the situation where the first power supply battery 710 or the second power supply battery 720 is not charged, thereby improving the battery life of the scooter and improving the flexibility of the use of the scooter. In addition, the mobility scooter provided in the embodiment of the present application has a single power supply battery 70 with a power capacity that allows the power supply battery 70 to be taken on board an airplane, making it convenient for the mobility scooter to be carried on board an airplane and used normally upon arrival at the destination, thereby further improving the performance of flexible use.

[0130] Finally, it should be noted that those skilled in the art will easily think of other embodiments of the utility model after considering the specification and practicing the utility model disclosed herein. The utility model is intended to cover any variation, use or adaptation of the utility model, which follows the general principles of the utility model and includes common knowledge or conventional technical means in the technical field not disclosed by the utility model, is not limited to the precise structure described above and shown in the drawings, and can be modified and changed in various ways without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims

1. A mobility scooter, characterized in that: include: Vehicle body; At least two battery compartments are provided on the vehicle body, and the at least two battery compartments form a placement area for at least two power supply batteries; At least a power supply battery is placed in the at least two battery compartments, and the power supply battery is connected to the vehicle control system of the mobility scooter to supply power to the mobility scooter.

2. The scooter according to claim 1, characterized in that: The at least two battery compartments are dual battery compartments, and the dual battery compartments are arranged in the chassis of the vehicle body. The dual battery compartments are provided with a middle partition for separating the placement areas of two power supply batteries.

3. The mobility scooter according to claim 1, characterized in that: The power supply battery includes a first power supply battery and a second power supply battery; The vehicle control system comprises: a battery switching circuit, connected to the first power supply battery and the second power supply battery respectively; A circuit control module is connected to the battery switching circuit and is used to select the first power supply battery or the second power supply battery to power the mobility scooter by controlling the battery switching circuit.

4. The scooter according to claim 3, characterized in that: The battery switching circuit includes a switching module, a first transistor, and a diode; The first end of the switching module is connected to the first power supply battery, the second end of the switching module is connected to the second power supply battery, and the third end of the switching module is connected to the circuit control module; The drain of the first transistor is connected to the fourth terminal of the switching module, and the gate of the first transistor is connected to the circuit control module; The anode of the diode is connected to the drain of the first transistor and the fourth terminal of the switching module respectively, and the cathode of the diode is connected to the fifth terminal of the switching module.

5. The mobility scooter according to claim 3, characterized in that: The vehicle control system comprises: A charging circuit, used for charging the first power supply battery or the second power supply battery; A communication circuit module, used to monitor the charging and discharging status of the power supply battery; The circuit control module is connected to the communication circuit module and the charging circuit. The circuit control module is used to select a power supply battery with lower power for charging through the battery switching circuit when the power supply battery is in a charging state.

6. The mobility scooter according to claim 5, characterized in that: The communication circuit module comprises: A communication chip, wherein a data transceiver end of the communication chip is connected to a data transceiver end of the circuit control module; The protection circuit has two ends connected to the high level end and the low level end of the communication chip respectively.

7. The mobility scooter according to claim 5, characterized in that: The charging circuit comprises: A charging management chip, wherein the input end of the charging management chip is used to connect to an external power supply, and the output end of the charging management chip is respectively connected to the first power supply battery and the second power supply battery; An isolation circuit, wherein a first end of the isolation circuit is connected to the circuit control module, and a second end of the isolation circuit is connected to an output end of the charging management chip.

8. The mobility scooter according to claim 3, characterized in that: The vehicle control system comprises: A first battery detection circuit, wherein a first end of the first battery detection circuit is connected to the first power supply battery, and a second end of the first battery detection circuit is connected to the circuit control module, and is used to detect the power of the first power supply battery; A second battery detection circuit, wherein a first end of the second battery detection circuit is connected to the second power supply battery, and a second end of the second battery detection circuit is connected to the circuit control module, and is used to detect the power level of the second power supply battery.

9. The mobility scooter according to claim 8, characterized in that: The first battery detection circuit includes: a second transistor, a third transistor, a first resistor, a first capacitor, a breakdown diode, a second resistor, a third resistor, and a second capacitor; One end of the first resistor and the first capacitor is connected to the gate of the second transistor, the collector of the third transistor and the anode of the breakdown diode respectively; The other end of the first resistor and the first capacitor is connected to the source of the second transistor, the first power supply battery and the cathode of the breakdown diode respectively; One end of the second resistor and the third resistor is connected to the drain of the second transistor; One end of the second capacitor is respectively connected to the other end of the second resistor and the circuit control module, and the other end of the second capacitor is respectively connected to the other end of the third resistor and the emitter of the third transistor; The base of the third transistor is connected to the circuit control module.

10. The mobility scooter according to claim 3, characterized in that: The vehicle control system comprises: An amplifier circuit, wherein two ends of the amplifier circuit are respectively connected to the circuit control module.

11. The mobility scooter according to claim 10, characterized in that: The amplifying circuit comprises: An operational amplifier module, wherein a first input terminal of the operational amplifier module is connected to the circuit control module, a second input terminal of the operational amplifier module is used for grounding, and an output terminal of the operational amplifier module is connected to the circuit control module; A fourth resistor, one end of the fourth resistor is connected to the output end of the operational amplifier module and the circuit control module respectively, and the other end of the fourth resistor is connected to the second input end of the operational amplifier module.

12. The mobility scooter according to any one of claims 1 to 11, characterized in that: The number of the power supply batteries is two, and the maximum battery capacity of any one of the dual power supply batteries is 300Wh.

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