CN217074604U

CN217074604U - Straddle type electric vehicle

Info

Publication number: CN217074604U
Application number: CN202122390654.8U
Authority: CN
Inventors: 朱琦; 郭树林; 胡海
Original assignee: Zhejiang CFMOTO Power Co Ltd
Current assignee: Zhejiang CFMOTO Power Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-07-29
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses a straddle type electric motor car, which comprises a vehicle rack, the wheel subassembly, suspension, the saddle subassembly, automobile body covering and tail lamp, wherein, the automobile body covering includes the back protection shield, the back protection shield distributes around at least part frame, the back protection shield includes first curb plate, second curb plate and buffering subassembly, first curb plate is connected with the second curb plate at least in part, one side and the first curb plate of tail lamp are connected, the opposite side and the second curb plate of tail lamp are connected, the back protection shield is at least partly through buffering subassembly and connected to the frame, the buffering subassembly is for providing the buffering between back protection shield and the frame. The utility model discloses can improve the mounting means of tail lamp, effectively solve the gap problem of tail lamp and automobile body panel, improve the stability of tail lamp installation.

Description

Straddle type electric vehicle

Technical Field

The utility model relates to an electric motor car, in particular to straddle type electric motor car.

Background

With the increasing importance of the current society on the environmental protection and energy conservation issues, the electric vehicle plays an increasingly important role in public travel as a green energy-saving and emission-reduction vehicle.

In the prior art, most of the mounting methods of the tail lamp of the straddle electric vehicle are to mount a vehicle body covering part on a frame and mount the tail lamp on the vehicle body covering part, but because the frame or the vehicle body covering part easily generates certain errors in production and manufacturing, because of the errors, under the mounting method, an assembly gap can exist between the tail lamp and the vehicle body covering part, in the driving process of the straddle electric vehicle, the tail lamp and the vehicle body covering part are easily collided by the assembly gap, so that the tail lamp or the vehicle body covering part is damaged, the problem of the assembly gap in mounting the tail lamp is solved, and the problem to be solved is urgent to improve the stability of the tail lamp.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims to provide an installation that makes the tail lamp has higher stability, makes the tail lamp can not take place the striking with the frame, can protect frame or tail lamp.

Based on the above-mentioned purpose, the utility model provides a straddle type electric motor car, include: a frame; the wheel assembly comprises a front wheel and a rear wheel which are arranged below the frame; a suspension system for connecting the wheel assembly to the frame; a saddle assembly disposed above the frame and adapted for at least seating by a driver; the vehicle body covering part covers the vehicle frame and is connected with the vehicle frame; a tail light for indicating the presence of the straddle electric vehicle to an observer; the automobile body panel includes the back protection shield, and the back protection shield distributes around at least part frame, and the back protection shield includes first curb plate, second curb plate and buffering subassembly, and first curb plate is connected with the second curb plate at least in part, and one side and the first curb plate of tail lamp are connected, and the opposite side and the second curb plate of tail lamp are connected, and the back protection shield is connected with the frame through buffering subassembly at least in part, and the buffering subassembly provides the buffering for between back protection shield and the frame.

Furthermore, still be provided with connecting portion between first curb plate and the second curb plate, connecting portion pass through buffering subassembly and frame connection.

Furthermore, the buffering assembly comprises a mounting bolt, a first buffering member and a second buffering member, the first buffering member is sleeved on the mounting bolt, one end of the first buffering member is abutted against the head of the mounting bolt, and the other end of the first buffering member is abutted against the frame; the second buffer piece is sleeved on the first buffer piece, at least part of the second buffer piece is arranged between the connecting part and the mounting bolt, and the first buffer piece is attached to the connecting part and the mounting bolt; the second buffer piece is at least partially arranged between the connecting portion and the frame, and the second buffer piece is attached to the connecting portion and the frame.

Further, the first side plate and the second side plate are symmetrically arranged with respect to the frame.

Further, the thickness of the first side plate is more than or equal to 2mm and less than or equal to 4 mm; the thickness of the second side plate is more than or equal to 2mm and less than or equal to 4 mm.

Furthermore, all be provided with three mounting points that are used for bolted connection on first curb plate and the second curb plate, three mounting point is first mounting point, second mounting point and third mounting point respectively, and first mounting point, second mounting point and third mounting point are triangular distribution.

Further, a distance between the first mounting point and the second mounting point is substantially the same as a distance between the first mounting point and the third mounting point.

Further, the first side plate and the second side plate are both made of a material including ABS.

Further, the tail light has one or more symmetry axes, and the tail light includes first mount pad and second mount pad, and first mount pad and second mount pad are relative symmetry setting.

Furthermore, the tail lamp is connected with the first side plate through the first mounting seat, and the tail lamp is connected with the second side plate through the second mounting seat.

The utility model has the advantages that: the utility model discloses a with tail lamp fixed mounting on the back protection shield, make both assemble in unison, fixed mounting is again on the frame, can effectively solve the join in marriage seam problem of tail lamp and back protection shield, utilizes buffering subassembly and connected to the frame to carry out the shock attenuation in the one end of back protection shield, prevents that the back protection shield from following the frame and taking place vibrations, and then solves the problem that the tail lamp takes place the striking with back protection shield or frame easily.

Drawings

FIG. 1 is a perspective view of a straddle electric vehicle;

FIG. 2 is a schematic structural view of the straddle electric vehicle;

FIG. 3 is a schematic diagram of a charging process for the second power supply;

FIG. 4 is a schematic diagram of the connection of the first power source to the charging assembly;

FIG. 5 is a schematic view of the structure of the patch cord;

FIG. 6 is a schematic view of the connection port of the charging gun;

FIG. 7 is a schematic diagram of the connection of a second power supply;

FIG. 8 is a schematic view of the structure of the battery case;

FIG. 9 is a schematic view of a partitioning device;

FIG. 10 is a partial structural view of a battery case;

FIG. 11 is an enlarged view of the structure at A in FIG. 10;

FIG. 12 is a schematic view of the connection of the partitioning device;

FIG. 13 is a schematic view of the arrangement of the motor and the first power source;

FIG. 14 is a schematic layout view of the straddle electric vehicle;

FIG. 15 is a schematic view of the structure of the motor mount;

FIG. 16 is an enlarged view at B in FIG. 15;

FIG. 17 is a schematic view of the connection of the motor to the frame;

FIG. 18 is a schematic configuration diagram of a conventional system;

FIG. 19 is a schematic structural view of the saddle block assembly;

FIG. 20 is a bottom view of the saddle assembly;

FIG. 21 is an enlarged view at C of FIG. 20;

FIG. 22 is a side view of the saddle;

FIG. 23 is an enlarged view at D of FIG. 22;

FIG. 24 is a schematic structural view of a portion of the vehicle body panel;

FIG. 25 is a schematic view of the closed state of the protective device;

fig. 26 is a schematic structural view of the protection device in an open state;

FIG. 27 is a schematic view of an open state of the damping device;

FIG. 28 is a schematic view of the closed state of the damping device;

FIG. 29 is a front view of the damper;

FIG. 30 is a side view of the damper;

FIG. 31 is a perspective view of the damper;

FIG. 32 is a schematic view of an open state of another damping device;

FIG. 33 is a perspective view of another damper;

fig. 34 is a schematic structural view of the rear protection plate;

FIG. 35 is an installation schematic of the damping assembly;

FIG. 36 is a schematic view of a heat dissipation system;

fig. 37 is a schematic view of the structure of the heat radiation pipe.

Detailed Description

The present invention will be described in detail with reference to the specific embodiments shown in the drawings, but the embodiments are not limited to the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.

For convenience of explanation, in the present embodiment, the directions shown in fig. 1 are the front-back direction, the left-right direction, and the up-down direction of the straddle-type electric vehicle 100, the plane where the front-back direction and the up-down direction are located is a first plane, the plane where the left-right direction and the up-down direction are located is a second plane, and the plane where the front-back direction and the left-right direction are located is a third plane.

The straddle electric vehicle 100 shown in fig. 1 includes a frame 11, a wheel assembly 12, a power system 13, an electric power system 14, a control system 15, a heat dissipation system 16, a transmission system 17, a saddle assembly 18, and a vehicle body cover 19. The frame 11 is used for supporting a power system 13, an electric power system 14, a control system 15, a heat dissipation system 16, a transmission system 17, a saddle assembly 18, a vehicle body covering 19, a suspension system 21, a tail lamp 22 and a handlebar 23, wherein the vehicle body covering 19 is fixedly connected to the frame 11, and the frame 11 is connected with a wheel assembly 12. The power system 13 provides an energy source for the riding electric vehicle 100 to run, the transmission system 17 is used for transmitting the energy source provided by the power system 13 to the wheel assembly 12, the power system 14 provides an energy source for the starting of the riding electric vehicle 100 and the operation of other electrical appliances, and the heat dissipation system 16 is used for timely transmitting the heat generated inside the riding electric vehicle 100 to the ambient air. The control system 15 includes a vehicle Controller 151 and a communication bus 152, a local Area Network in the straddle-type electric vehicle 100 is constructed by using the communication bus 152, the control system 15 performs communication actions such as instant information interaction, instruction transmission and the like with each electric device in the straddle-type electric vehicle 100 through the communication bus 152, and as an implementation manner, the communication bus 152 is a CAN bus (CAN). The handlebar 23 is coupled to the wheel assembly 12 via the suspension system 21 to control the steering of the straddle electric vehicle 100.

As shown in fig. 2, the wheel assembly 12 includes a front wheel 121 and a rear wheel 122 disposed below the frame 11, and the front wheel 121 serves as a steering wheel of the electric straddle-type vehicle 100, and the rear wheel 122 serves as a driving wheel of the electric straddle-type vehicle 100.

Suspension system 21 is used to couple wheel assembly 12 to frame 11. specifically, suspension system 21 includes a front suspension 211 and a rear suspension 212, with front wheel 121 coupled to frame 11 via front suspension 211 and rear wheel 122 coupled to frame 11 via rear suspension 212.

The power system 13 includes a first power source 131, a charging interface 132, a motor 133, a motor controller 134, a junction box 137, and a battery compartment 138 for housing the first power source 131. The first power source 131 is provided in the battery box 138, the first power source 131 serves as an energy source of the saddle-ride type electric vehicle 100 for accumulating electric power supplied to the motor controller 134, and the first power source 131 may be configured by a lithium ion battery as an energy storage device capable of charging and discharging electricity. The charging interface 132 is disposed close to the first power source 131, and one end of the charging interface 132 is connected to the first power source 131, when the straddle-type electric vehicle 100 is charged, one end of the charging interface 132, which is far away from the first power source 131, is connected to the charging assembly 300 to supplement the electric energy to the first power source 131, and the charging assembly 300 includes the charger 31 capable of supplementing the electric energy to the first power source 131.

One end of the motor controller 134 is connected to the motor 133, and the end of the motor controller 134 remote from the motor 133 is connected to the first power source 131 through the terminal box 137 and receives power from the first power source 131 in the battery box 138. The motor controller 134 is configured to convert the electric energy stored in the first power source 131 into electric energy required by the motor 133 according to commands such as a gear, an accelerator, and a brake of the straddle electric vehicle 100, so as to control a driving state such as a starting operation, a forward/backward speed, and a climbing force of the straddle electric vehicle 100, for example, the motor controller 134 controls the motor 133 to operate according to a preset direction, speed, angle, response time, and the like. The junction box 137 is fixedly installed on the frame 11 and is arranged on one side of the battery box 138, the junction box 137 serves as a connector for providing a switching point for connection of the first power supply 131 and the motor controller 134, and the first power supply 131 is transited through the junction box 137 to be in wired connection with the motor controller 134. The terminal block 137 not only ensures good connection between the first power source 131 and the motor controller 134 and facilitates arrangement of a connection line between the first power source 131 and the motor controller 134, but also protects the connection positions of the first power source 131 and the motor controller 134 from external erosion or contamination.

The power management device 135 is connected to the first power source 131, and the power management device 135 may monitor a State of the first power source 131, for example, detect a current State parameter of the first power source 131, where the State parameter may be a voltage, a current, a State of Charge (SOC), and the like, and stop the operation of the first power source 131 when the current parameter of the first power source 131 does not meet a threshold parameter, so as to avoid the problems of overcharge and overdischarge of the first power source 131, protect the safety of the first power source 131, reasonably plan the use of the first power source 131, and prolong the service life of the first power source 131.

As shown in fig. 3, the power system 14 includes a second power source 141 and a transforming device 142 capable of transforming a certain voltage level into another voltage level, the second power source 141 is used for providing an energy source for electric devices of the straddle electric vehicle 100, for example, the second power source 141 is used for providing an energy source for electric devices such as an indicator light, a start switch and the like of the straddle electric vehicle 100. The second power source 141 as an energy storage device capable of charging and discharging may be constituted by a lead-acid storage battery, and in the present embodiment, the capacity of the first power source 131 is larger than the capacity of the second power source 141 in consideration of the first power source 131 as an energy source for the straddle electric vehicle 100 to travel. As an implementation manner, the transforming device 142 may be a DCDC converter, and may be configured to transform the voltage output by the first power source 131 and transmit the transformed voltage to the second power source 141 to charge the second power source 141, it may be understood that the voltage output by the first power source 131 is greater than the voltage output by the second power source 141, and the voltage passing through the transforming device 142 is greater than the voltage output by the second power source 141, so that the first power source 131 can normally charge the second power source 141.

During charging, the charging assembly 300 is connected to the charging interface 132, so that a user can charge the first power source 131 by using the charging assembly 300. Specifically, the first power source 131 may be connected to the charging interface 132 through the patch cord 136, and the charging assembly 300 outputs current and voltage to the first power source 131 through the patch cord 136. During charging, the power management device 135 is connected to the communication bus 152, the charging component 300 is also connected to the communication bus 152, communication is performed between the power management device 135 and the charging component 300 through the communication bus 152, the power management device 135 sends a charging request of the first power source 131 and the state parameter of the first power source 131 to the charging component 300 through the communication bus 152, and the charging component 300 charges the first power source 131 according to the charging request and outputs corresponding current and voltage according to the state parameter of the first power source 131.

As shown in fig. 4, where the dashed lines represent communication lines and the solid lines represent electrical connection lines, as one implementation, the first power source 131 includes a first battery pack 1311 and a second battery pack 1312, and the patch cord 136 includes a first patch cord 1361 and a second patch cord 1362. The first battery pack 1311 is connected to the charging interface 132 through a first transfer line 1361, and the second battery pack 1312 is connected to the charging interface 132 through a second transfer line 1362, and during charging, the first battery pack 1311 is connected to the charging interface 132 through the charging assembly 300, and the second battery pack 1312 is charged through the first transfer line 1361 and the second transfer line 1362. The first battery pack 1311 and the second battery pack 1312 are coupled in parallel, and the parallel coupling enables the first power source 131 to provide a large current for the straddle-type electric vehicle 100, so as to provide a large power for the motor of the straddle-type electric vehicle 100, so as to support high-speed running of the straddle-type electric vehicle 100, so that the straddle-type electric vehicle 100 has the speed performance of a straddle-type fuel vehicle, and further, the battery performance of the first power source 131 can be better exerted in a parallel connection mode. In addition, by connecting the first battery pack 1311 and the second battery pack 1312 in parallel, the safety of the first power source 131 can be ensured, the first battery pack 1311 and the second battery pack 1312 can satisfy a state of independent operation or joint operation, and the input and output of the first battery pack 1311 and the second battery pack 1312 do not affect each other. Specifically, when one of the battery packs fails, the other battery pack can still operate, and the problem that the first power source 131 cannot operate due to the failure of the one battery pack, so that the straddle-type electric vehicle 100 cannot be used can be avoided. In the state of common operation, the operating state of the first battery pack 1311 or the second battery pack 1312 is monitored by the power management device 135 in real time, and the output power of the first battery pack 1311 or the second battery pack 1312 is adjusted accordingly, so that the first battery pack 1311 or the second battery pack 1312 is prevented from being in an extreme operating state (for example, the operating temperature is too high), and the stability of power supply of the first power source 131 can be effectively improved. In the present embodiment, the first battery pack 1311 and the second battery pack 1312 are both the same type of battery module manufactured according to vda standard, and the structural composition and the state parameters of the first battery pack 1311 and the second battery pack 1312 are the same, so that the power management device 135 can monitor the first battery pack 1311 and the second battery pack 1312 conveniently.

When the charging component 300 charges the first power source 131, the power management device 135 sends a first charging request to the charger 31 through the communication bus 152, the first charging request being associated with the state parameters of the first battery pack 1311; the power management device 135 also sends a second charging request to the charger 31 via the communication bus 152, the second charging request being associated with the state parameters of the second battery pack 1312, and the charger 31 being capable of outputting corresponding current and voltage to the first battery pack 1311 and the second battery pack 1312 according to the first charging request and the second charging request.

As shown in fig. 5, the first transfer line 1361 includes a first high voltage terminal 1361a, a first ground terminal 1361b, a first negative terminal 1361d, and a first signal terminal 1361c having one end connected to the power management device 135, wherein the first high voltage terminal 1361a has one end connected to the first battery pack 1311 and the other end connected to the charging interface 132. The second patch cord 1362 includes a second high voltage terminal 1362a, a second ground terminal 1362b, a second negative terminal 1362d, and a second signal terminal 1362c having one end connected to the power management device 135, wherein the second high voltage terminal 1362a has one end connected to the second battery pack 1312 and the other end connected to the charging interface 132, the first ground terminal 1361b is connected to the second ground terminal 1362b, and the first negative terminal 1361d is connected to the second negative terminal 1362 d. As an implementation manner, an end of the first signal terminal 1361c away from the power management device 135 is connected to the first ground terminal 1361b, and then the first signal terminal 1361c of the first transfer line 1361 provides a ground signal for the power management device 135. The end of the second signal terminal 1362c away from the power management device 135 is in a floating state, so that the second signal terminal 1362c provides a floating signal for the power management device 135. The power management device 135 distinguishes the first battery pack 1311 from the second battery pack 1312 by acquiring and recognizing different electrical signals transmitted by the first signal terminal 1361c and the second signal terminal 1362c, and then may present an ID for distinguishing the first battery pack 1311 from the second battery pack 1312 on the communication bus 152, so as to facilitate interaction of different battery pack charging requests with the charging assembly 300.

As shown in fig. 6, the charging assembly 300 further includes a charging gun 32, one end of the charging gun 32 is fixedly connected to the charger 31, when the charging assembly 300 is used for charging the straddle-type electric vehicle 100, one end of the charging gun 32 away from the charger 31 is connected to the charging interface 132, and the charger 31 is connected to the charging interface 132 through the charging gun 32. Specifically, the charging gun 32 includes a wake-up terminal 321, a CAN _ H communication terminal 322, a CAN _ L communication terminal 323, a first high voltage output terminal 324, a second high voltage output terminal 325, a ground terminal 326, a detection terminal 327, and a negative terminal 328. During charging, the wake-up terminal 321 is connected to the power management device 135 and is used for waking up the power management device 135 to enable the power management device 135 to enter a working state. The CAN _ H communication terminal 322 and the CAN _ L communication terminal are respectively connected to the communication bus 152. The first high voltage output terminal 324 is connected to a first high voltage terminal 1361a of the first transfer line 1361 through the charging interface 132 for charging the first battery pack 1311. The second high voltage output 325 is connected to a second high voltage terminal 1362a of a second patch cord 1362 through the charging interface 132 for charging the second battery pack 1312. The ground 326 is used for grounding, and it should be noted that, if the ground of the vehicle controller 151 is grounded, the ground 326 of the charging gun 32 may be connected to the ground of the vehicle controller 151. The negative terminal 328 of the charging gun 32 is connected to the common terminal of the first negative terminal 1361d and the second negative terminal 1362d of the adapter line 136 via the charging interface 132.

When the straddle electric vehicle 100 is charged, that is, when the charger 31 charges the first power source 131 through the charging gun 32, the first high voltage output terminal 324 of the charging gun 32 is connected to the first high voltage output terminal 324 of the first transfer line 1361 through the charging interface 132, and the first high voltage output terminal 324 may also be connected to the vehicle controller 151 through the charging interface 132; or, on the basis that the second high-voltage output end 325 of the charging gun 32 is connected with the second high-voltage output end 325 of the second patch cord 1362 through the charging interface 132, the second high-voltage output end 325 may also be connected with the vehicle controller 151 through the charging interface 132, and then the charging gun 32 may also charge the vehicle controller 151 on the basis of charging the first power source 131 when the straddle-type electric vehicle 100 is charged. The detection end 327 of the charging gun 32 may also be connected to the vehicle controller 151 for providing a connection signal to the vehicle controller 151. When the straddle electric vehicle 100 is charged, the power management device 135 can distinguish the first battery pack 1311 from the second battery pack 1312 through the first transfer line 1361 and the second transfer line 1362, and mark different message IDs for the first battery pack 1311 and the second battery pack 1312, the power management device 135 can send charging requests corresponding to the first battery pack 1311 and the second battery pack 1312 to the communication bus 152 according to the state parameters of the first battery pack 1311 and the second battery pack 1312, send the charging requests to the charging component 300 through the communication bus 152, send the charging requests of the first battery pack 1311 and the second battery pack 1312 respectively, the charging component 300 identifies according to the message IDs, and outputs different currents and voltages to the first transfer line 1361 and the second transfer line 1362 respectively according to the charging requests so as to correspond to the charging requests of the first battery pack 1311 and the second battery pack 1312, the charging assembly 300 can output in two paths, so that the first battery pack 1311 and the second battery pack 1312 are isolated from each other in the charging process and do not interfere with each other, the charging time can be greatly saved, the maximum output capacity of the charging assembly 300 is utilized to the greatest extent, and the charging and safety requirements of different battery packs can be responded timely.

The vehicle control unit 151 can control the operation of the straddle electric vehicle 100 in response to a trigger instruction (e.g., a start switch of the straddle electric vehicle 100). In this embodiment, the second power source 141 can provide the electric energy required for the operation of the vehicle control unit 151 and the start switch of the straddle-type electric vehicle 100, so as to prevent the occurrence of a situation that the electric devices of the straddle-type electric vehicle 100 are power-deficient due to dark current consumption or self-discharge of the second power source 141, when the second power source 141 is power-deficient, if the second power source 141 is not timely powered, the second power source 141 cannot provide the energy required for starting the straddle-type electric vehicle 100, and further the straddle-type electric vehicle 100 cannot be started. In the present application, the hybrid controller 151 can perform power-down protection on the second power supply 141. Specifically, as shown in fig. 7, the vehicle control unit 151 is connected to the second power supply 141 and is capable of monitoring a state parameter of the second power supply 141, and the vehicle control unit 151 includes a first monitoring mode and a second monitoring mode and is capable of performing a corresponding control operation in different monitoring modes to supplement power to the second power supply 141. As an implementation manner, the vehicle controller 151 detects the second power supply 141 by using the voltage as a monitoring target.

When the straddle electric vehicle 100 is switched from the running state to the power-off or power-off state, the vehicle control unit 151 enters the first monitoring mode, the vehicle control unit 151 continuously detects the voltage of the second power supply 141 for a set detection time, when the voltage of the second power source 141 is lower than the first preset parameter, the vehicle control unit 151 sends a request signal to the power management device 135 and drives the transforming device 142 to operate, the power management device 135 receives the request signal and enters an operating state, the power management device 135 wakes up the first power source 131 again to enable the first power source 131 to enter the operating state, the output voltage of the first power source 131 is transformed by the transforming device 142 and then charges the second power source 141, and continuously charging the second power supply 141 for a preset charging time period until the preset charging time period is over, the vehicle control unit 151 sends a charging stop signal to the power management device 135, and the power management device 135 causes the first power supply 131 to stop outputting the voltage from the voltage transformation device 142. When the straddle-type electric vehicle 100 is in a stationary state (the stationary state indicates that the straddle-type electric vehicle 100 is in a long-term unused state), the vehicle control unit 151 enters a second monitoring mode, where it should be noted that a timer is connected to the vehicle control unit 151, the timer receives power supplied from the second power supply 141 and constantly stays in a working state, the timer wakes up the vehicle control unit 151 every first time, so that the vehicle control unit 151 works, the woken-up vehicle control unit 151 detects the voltage of the second power supply 141, when the voltage of the second power supply 141 is lower than a first preset parameter, the vehicle control unit 151 sends a request signal to the power management device 135 and drives the transformer device 142 to work, the power management device 135 receives the request signal and enters the working state, and the power management device 135 wakes up the first power supply 131 again so that the first power supply 131 enters the working state, the voltage output by the first power source 131 is transformed by the transforming device 142 and then charges the second power source 141 until the preset charging time period is over, the vehicle control unit 151 sends a charging stop signal to the power management device 135, and the power management device 135 controls the first power source 131 to stop outputting the voltage to the transforming device 142.

It is understood that, in the above two monitoring modes, during the charging process of the second power supply 141, the vehicle control unit 151 continuously detects the voltage of the second power supply 141, and when the voltage of the second power supply 141 reaches the second preset parameter within the preset charging time period, the vehicle control unit 151 sends a charging stop signal to the power management device 135, and the power management device 135 causes the first power supply 131 to stop outputting the voltage by the voltage transformation device 142. As an implementation manner, the first preset parameter and the second preset parameter can be set according to the working parameter of the second power supply 141, the first preset parameter corresponds to the voltage that the second power supply 141 can provide for starting the straddle-type electric vehicle 100, the second preset parameter corresponds to the voltage of the second power supply 141 in the full power state, and the second preset parameter is greater than the first preset parameter. In this embodiment, the preset charging duration is equal to the first time, such setting may enable the vehicle control unit 151 to detect the voltage of the second power supply 141 again after the charging of the second power supply 141 is completed, and if the voltage of the second power supply 141 is still lower than the first preset parameter, the first power supply 131 may be charged to the second power supply 141 again, the power management device 135 is not required to wake up the first power supply 131 again, the power consumption of the first power supply 131 may be reduced, and the working efficiency of the circuit is effectively improved. The control system 15 in this embodiment monitors the state of the second power supply 141 and controls the second power supply 141 accordingly, so that the situation that the straddle electric vehicle 100 cannot be started due to the power shortage of the second power supply 141 can be effectively prevented, the service life of the second power supply 141 can be prolonged, and the power consumption loss of the straddle electric vehicle 100 can be reduced. In addition, the control system 151 can be in communication connection with the mobile terminal and/or the cloud server through the vehicle control unit 151. Under the condition that the straddle electric vehicle 100 is in the standing state, the control system 15 can transmit the state data of the straddle electric vehicle 100 to the mobile terminal and/or the cloud server at every first interval, so that when the control system 15 transmits the state data of the straddle electric vehicle 100 to the mobile terminal and/or the cloud server, the control system 15 can synchronously acquire the current parameters of the second power supply 141, and the state data can represent the current state of the straddle electric vehicle 100.

In the process of charging the straddle-type electric vehicle 100, the situation that a user forgets that the straddle-type electric vehicle 100 is in a charging state and forcibly drives the straddle-type electric vehicle 100 to run and pull the charging assembly 300 occurs, which causes a great hidden danger to the charging safety of the straddle-type electric vehicle 100, and may damage the straddle-type electric vehicle 100 or the charger 31 in serious cases, so that it is necessary to detect and control whether the current straddle-type electric vehicle 100 is connected to the charging assembly 300, so that the straddle-type electric vehicle 100 cannot be driven to run in the charging state. In the prior art, a national standard alternating current charging gun is mostly used for charging connection, the national standard alternating current gun is used for connection identification by using a CC signal, the CC signal is a connection confirmation signal in vehicle charging, and whether the charger 31 is connected with the straddle electric vehicle 100 or not is judged by detecting a voltage condition of the CC signal. However, the national standard ac charging gun 32 needs a corresponding charging pile as the charger 31, and the number of the charging piles is small, the coverage area is narrow, the use convenience is poor, the daily charging requirement of the user cannot be met, and the charging mode is not the best for the user of the straddle electric vehicle 100. The charger 31 corresponding to the charging gun 32 in the embodiment can be directly connected with a household or a charging socket connected with the mains supply, so that the charging safety is ensured, and the charging gun is more convenient and faster for a user.

In the present embodiment, the charging gun 32 is also capable of providing a connection signal to the control system 15 when charging the straddle electric vehicle 100, and the control system 15 determines whether the charging gun 32 is connected to the charging interface 132 according to the connection signal. Specifically, the charging gun 32 is connected to the charging interface 132, the detection end 327 of the charging gun 32 is electrically connected to the vehicle control unit 151, an electrical signal is transmitted to the vehicle control unit 151 through the detection end 327, the vehicle control unit 151 obtains and detects the electrical signal in real time to determine whether the charging gun 32 is connected to the charging interface 132, if it is determined that the charging gun 32 is connected to the charging interface 132, the vehicle control unit 151 controls the straddle-type electric vehicle 100 to enter a charging state, and the motor 133 does not output a driving force in the charging state, so that the straddle-type electric vehicle 100 cannot drive to run. For example, when the vehicle control unit 151 determines that the charging gun 32 is connected to the charging interface 132, the vehicle control unit 151 may transmit a corresponding charging command (representing that the straddle electric vehicle 100 enters a charging state) to the motor controller 134 through the communication bus 152, and the motor controller 134 may output no torque in response to the charging command, so that the motor 133 outputs no driving force. After the charging is completed, the user pulls out the charging gun 32, so that the charging gun 32 is separated from the charging interface 132, the connection between the detection end 327 and the vehicle control unit 151 is disconnected, the vehicle control unit 151 no longer receives the connection signal, and the straddle electric vehicle 100 is controlled to be separated from the charging state. As an implementation manner, one end of the detecting terminal 327 is connected to the waking terminal 321, the waking terminal 321 can output a high level signal, so that the waking terminal 321 transmits the high level signal to the detecting terminal 327, the vehicle control unit 151 sets a detection manner in which the high level signal is valid, when the vehicle control unit 151 obtains that the electrical signal transmitted by the detecting terminal 327 is the high level signal during charging, it is determined that the charging gun 32 is connected to the charging interface 132, and the vehicle control unit 151 controls the straddle electric vehicle 100 to enter a charging state, which is a premise of this implementation manner that the charger 31 needs to be powered on, so that the waking terminal 321 has input of the high level signal.

As another implementation manner, the detection terminal 327 of the charging gun 32 is connected to the ground terminal 326 of the charging gun 32, at this time, the ground terminal 326 transmits a low level signal to the detection terminal 327, when charging, the vehicle controller 151 determines that the charging gun 32 is connected to the charging interface 132 when the vehicle controller 151 obtains the low level signal through a detection manner in which the low level signal is valid, and the vehicle controller 151 controls the straddle-type electric vehicle 100 to enter a charging state, in this manner, when the charging gun 32 is connected to the charging interface 132, the vehicle controller 151 can obtain the low level signal transmitted by the detection terminal 327, and the vehicle controller 151 can control the straddle-type electric vehicle 100 to enter the charging state without the charger 31 being powered on by an external power source, thereby avoiding the occurrence of a situation that the charging gun 32 is dragged. Both the above two implementation manners adopt the ports carried on the charging gun 32, i.e. the waking end 321, the grounding end 326, and the detecting end 327, for example, the waking end 321 is connected with the detecting end 327, or the grounding end 326 is connected with the detecting end 327, that is, other ports on the charging gun 32 are used as the input of the electrical signal, and the connection detection of the charging gun 32 during the charging of the straddle electric vehicle 100 can be established without adding extra ports to transmit the detection signal, which is favorable for the charging protection of the straddle electric vehicle 100, and simultaneously, the manufacturing cost of the charging gun 32 can be controlled.

As shown in fig. 8, a partition 1381 is provided in the battery case 138, the partition includes a fixed state locked in the battery case 138 and a second state unlocked from the battery case 138, and the inside of the battery case 138 can be divided into a first chamber and a second chamber by the partition 1381. As an alternative implementation manner, the second chamber is located below the first chamber, the volume of the second chamber is larger than that of the first chamber, the second chamber is used for placing the first power source 131, and the first chamber can be used as a storage space, and can be used for storing the charger 31 or other articles. The bottom surface of the battery box 138 is disposed obliquely with respect to the ground, and as one implementation, the extension line of the bottom surface of the battery box 138 forms an angle of 20 ° with the ground. Generally, the angle between the extension line of the bottom surface of the battery box 138 and the first plane is set to be greater than or equal to 10 ° and less than or equal to 30 °, and the battery box 138 is obliquely arranged within the angle range, so that a larger operation space can be obtained when the battery box 138 is opened, and a user has a wider operation view, which is convenient for the user to operate, such as accessing the articles in the first chamber or the first power source 131 in the second chamber. The partition 1381 is arranged between the first cavity and the second cavity, and the first power supply 131 can be limited and fixed through the partition 1381, so that the battery box 138 can be limited from shaking up and down in the driving process of the straddle-type electric vehicle 100, and the first power supply 131 is protected.

Specifically, the partition 1381 includes a first plate 1381a and a second plate 1381b, and as shown in fig. 9, the second plate 1381b and the first plate 1381a may be connected to each other by a plurality of bolts, the first plate 1381a may be at least partially positioned above the second plate 1381b, the first plate 1381a and the second plate 1381b may be arranged in parallel to each other, and the first plate 1381a may be at least partially in contact with the battery case. As shown in fig. 10 and 11, the battery case 1383 is provided with a first stopper hole 1382 and a second stopper hole 1383, one end of the partition 1381 is restricted by the first stopper hole 1382, and the other end of the partition 1381 is restricted by the second stopper hole 1383, so that the partition 1381 can be fixed in the battery case 138. As shown in fig. 10, the first plate 1381a includes a first 1381d and a second 1381f limiting end, the first 1381d limiting end is disposed on one end of the first plate, and the second 1381f limiting end is disposed on the other end of the first plate away from the first 1381d limiting end. In the first state, the first position-limiting end 1381d can be engaged with the first position-limiting hole 1382, and the second position-limiting end 1381f can be engaged with the second position-limiting hole 1383. In addition, the second position-limiting end 1381f can rotate relative to the battery box 138, the second position-limiting end 1381f comprises a first position and a second position relative to the battery box 138, the partition 1381 further comprises a control switch 1381c, and the control switch 1381c is connected with the second position-limiting end 1381 f. As shown in fig. 12, the second position-limiting end 1381f is connected to the second position-limiting hole when in the first position, the second position-limiting end 1381f is separated from the second position-limiting hole when in the second position, and the second position-limiting end 1381f is controlled by the control switch 1381c, when the control switch 1381c rotates, the second position-limiting end 1381f also rotates correspondingly, the second position-limiting end 1381f rotates into the second position-limiting hole 1383, the second position-limiting hole 1383 performs position-limiting fixing on the second position-limiting end 1381f, so that one end of the first plate 1381a is fixed on the battery box 138, when the second position-limiting end 1381f rotates to be separated from the second position-limiting hole 1383, the connection between the rear end of the second plate 1381b and the battery box 138 is disconnected, so that one end of the first plate 1381a can move. In this implementation, the user can control the connection or disconnection between the rear end of the first plate 1381a and the battery box 138 through the control switch 1381c, the front end of the partition 1381 is fixed by clamping, and the user can also release the connection between the front end of the partition 1381 and the battery box 138 by hand, so that the partition 1381 is detached from the battery box 138, and the method does not need to use tools for detachment and installation, has high repeated utilization rate, has small friction loss between devices, and is convenient for the lossless installation and lossless detachment of the partition 1381.

The second plate 1381b comprises a third limiting end 1381e, the third limiting end 1381e is parallel to the lower part of the first limiting end 1381d, and in the first state, the first limiting end 1381d and the second limiting end 1381f are clamped on the first limiting hole together, so that the third limiting end 1381e can bear the first limiting end 1381d when the first plate 1381a is under the pressure of the first cavity, and the first limiting end 1381d and the first limiting hole are prevented from being rubbed to cause looseness. A buffer 1381g is provided between the spacer 1381 and the first power source 131, the first power source 131 is connected to the spacer 1381 at least partially through the buffer 1381g, and the buffer 1381g absorbs the pressure applied from the first power source 131 and applies a force opposite to the pressure to the first power source 131 to fix the first power source 131. The buffer member 1381g is made of rubber, and the deformation amount of the buffer member 1381g is changed between the tension state and the compression state during the driving of the saddle-ride type electric vehicle 100, thereby preventing the first power supply 131 from shaking and rubbing in the battery case 138. The first plate 1381a is also used to withstand the pressure exerted by the article placed in the first chamber, and it will be appreciated that the hardness of the material of the second plate 1381b is greater than the hardness of the material of the first plate 1381a, providing the partition 1381 with a structural strength high enough to withstand the force exerted on the partition 1381 by the article in either the first chamber or the second chamber. It will be appreciated that in this implementation, the second plate 1381b is made of metal, so that the second plate 1381b has sufficient strength and strength, the first plate 1381a is made of plastic or other material, and the sum of the thicknesses of the first plate 1381a and the second plate 1381b is greater than 7mm and less than or equal to 11mm, so that the overall weight of the partition 1381 is small, the partition 1381 is convenient for a user to replace or operate, and the production cost can be effectively reduced. Set up separator 1381 in battery case 138 in this embodiment, divide into two cavities with battery case 138, the use volume of division battery case 138 that can be reasonable, make arranging more scientific and reasonable in battery case 138, reserve the space that can hold other article, can satisfy the different user demands of user, utilize separator 1381 to carry out spacing protection to battery case 138 simultaneously, and detachable arranges the form and makes separator 1381 can satisfy different application scenarios, still the person of facilitating the use examines and maintains battery case 138.

As shown in fig. 13, the straddle-type electric vehicle 100 may be divided into a front portion 400, a middle portion 500, and a rear portion 600 in the front-rear direction, with the rear of the motor 133 being the rear portion 600, the front of the motor controller 134 being the front portion 400, and the middle portion 500 between the motor 133 and the motor controller 134. A straight line perpendicular to the bottom surface of the first power source 131 is taken as a first straight line, a straight line from the center of the motor 133 to the center of the front wheel 121 is taken as a second straight line, and a straight line from the center of the motor 133 to the center of the rear wheel 122 is taken as a third straight line; the plane of the front-back direction and the up-down direction of the straddle-type electric vehicle 100 is a first plane, the first straight line has a first straight line projection on the first plane, the second straight line has a second straight line projection on the first plane, the third straight line has a third straight line projection on the first plane, and an included angle between the first straight line projection and the second straight line projection is greater than or equal to 50 degrees and less than or equal to 90 degrees. The included angle between the first straight line projection and the third straight line projection is greater than or equal to 60 degrees and less than or equal to 100 degrees. The overall length of the connecting lines among the three can be effectively reduced by the arrangement, the line arrangement of the connecting lines is easier, the connecting lines at each position can be short and smooth, meanwhile, the pipeline arrangement in the heat dissipation system 16 can be combined, and the internal space of the straddle electric vehicle 100 is utilized to the maximum extent.

As shown in fig. 14, as an arrangement of the power system 13, the center of the rear wheel 122 has a first horizontal projection on a first plane in the left-right direction, the center of the front wheel 121 has a second horizontal projection on the first plane in the left-right direction, and the distance between the first horizontal projection and the second horizontal projection in the front-rear direction is D1. The center of the rear wheel 122 has a first vertical projection on a second plane in the front-rear direction, and the center of the handlebar 23 has a second vertical projection on the second plane in the front-rear direction, and the distance between the first vertical projection and the second vertical projection is H1.

The motor 133 is disposed in the middle portion 600 of the straddle electric vehicle 100, biased toward the bottom of the straddle electric vehicle 100, between the front wheel 121 and the rear wheel 122, and disposed closer to the rear wheel 122. Specifically, the center of the motor 133 has a third horizontal projection on the first plane in the left-right direction, the distance between the first horizontal projection and the third horizontal projection in the front-rear direction is D2, and the ratio of D2 to D1 is 0.2 or more and less than 0.5. The center of motor 133 has the third vertical projection on the second plane along the left-right direction, along fore-and-aft direction, the distance between first vertical projection and the third vertical projection is H2, the ratio more than or equal to 0.1 and less than or equal to 0.2 of H2 and H1, this is provided with and does benefit to the focus that reduces straddle electric motor car 100, make straddle electric motor car 100 all have better stability in the state of traveling or stopping, can avoid straddle electric motor car 100's focus too far ahead or behind and cause straddle electric motor car 100 quality unbalance simultaneously. In addition, the motor 133 and the rear wheel 122 are prevented from being too far away from each other, so that a longer transmission belt 173 is required for connection, and if the longer transmission belt 173 is used, the contact area between the transmission belt 173 and the air is naturally increased, so that the straddle electric vehicle 100 is subjected to larger air resistance when running, and further power loss of the motor 133 is caused.

The first power 131 is arranged in the middle 500 of the straddle-type electric vehicle 100, the first power 131 is installed in the battery box 138, the battery box 138 is arranged obliquely relative to the ground, thereby enabling the first power 131 to form a certain inclination angle with the ground, the inclination angle is an included angle between the bottom surface extension line of the battery box 138 and the ground, the included angle is more than or equal to 10 degrees and less than or equal to 30 degrees, the space of the first power 131 in the internal setting of the straddle-type electric vehicle 100 can be saved by the arrangement, a larger space is reserved for the arrangement of other components or devices, and the miniaturization setting of the straddle-type electric vehicle 100 is facilitated. Specifically, the center of the first power source 131 has a fifth horizontal projection on a first plane in the front-rear direction, the distance between the first horizontal projection and the fifth horizontal projection in the left-right direction is D4, the ratio of D4 to D1 is 0.38 or more and 0.78 or less, the center of the first power source 131 has a fifth vertical projection on a second plane in the left-right direction, the distance between the first vertical projection and the fifth vertical projection in the front-rear direction is H4, the ratio of H4 to H1 is 0.19 or more and 0.59 or less, and the installation of the first power source 131 within this range makes the arrangement of the inner space of the front end of the straddle electric vehicle 100 more reasonable, meanwhile, the internal space of the straddle-type electric vehicle 100 can be more compact, which is beneficial to the miniaturization arrangement of the straddle-type electric vehicle 100, further, the usable area of the body cover 19 outside the straddle-type electric vehicle 100 is reduced, and the manufacturing cost of the body cover 19 is greatly reduced.

The motor controller 134 is disposed in the middle 500 of the straddle-type electric vehicle 100, near the motor 133 and the battery box 138, on the front side of the motor 133 in the front-rear direction. The motor controller 134 is installed below the battery box 138 and parallel to the bottom surface of the battery box 138, so that the angle between the extension line of the bottom surface of the motor controller 134 and the ground is 10 ° or more and 30 ° or less, and the bottom surface of the motor controller 134 is inclined to the ground. After the straddle electric vehicle 100 is waded, the water remaining on the motor controller 134 may flow along the bottom surface of the motor controller 134 to the ground, and in addition, this arrangement facilitates the user to inspect the bottom surface of the motor controller 134 and to clean the dust, water stains, or other contaminants accumulated on the bottom surface. Specifically, the center of the motor controller 134 has a fourth horizontal projection on the first plane along the front-back direction, the distance between the first horizontal projection and the fourth horizontal projection is D3 along the left-right direction, the ratio of D3 to D1 is greater than or equal to 0.44 and less than or equal to 0.84, the center of the motor controller 134 has a fourth vertical projection on the second plane along the left-right direction, the distance between the first vertical projection and the fourth vertical projection is H3 along the front-back direction, and the ratio of H3 to H1 is greater than or equal to 0.14 and less than or equal to 0.24. Compared with the prior art, the arrangement mode can maximally shorten the distance between the motor 133 and the motor controller 134 and the distance between the first power supply 131 and the motor controller 134, so that the overall arrangement of all components in the power system 13 is more compact, and the utilization of the internal space of the straddle-type electric vehicle 100 is more reasonable.

The terminal box 137 is provided on the right side of the battery case 138 in the front-rear direction, and is fixedly connected to the frame 11 by bolts. Specifically, the center of the junction box 137 has a sixth horizontal projection on the first plane along the front-back direction, the distance between the first horizontal projection and the sixth horizontal projection in the left-right direction is D5, the ratio of D5 to D1 is greater than or equal to 0.36 and less than or equal to 0.76, the center of the junction box 137 has a sixth vertical projection on the second plane along the left-right direction, the distance between the first vertical projection and the sixth vertical projection in the front-back direction is H5, and the ratio of H5 to H1 is greater than or equal to 0.23 and less than or equal to 0.63. Because the connecting wire that uses in driving system 13 needs bigger radius for the connecting wire occupation space is big, and the connecting wire material is hard difficult for buckling excessively, causes the interference to striding type electric motor car 100 other parts easily, and installation terminal box 137 in this within range can effectively reduce the length of the connecting wire of battery case 138 and motor controller 134, and circuit layout is more smooth and easy simultaneously, makes striding type electric motor car 100 front end inner space's arranging compacter reasonable.

In the above arrangement manner of the power system 13, the connecting lines are provided between the motor 133, the first power source 131, the junction box 137 and the motor controller 134, and it is necessary to consider the problem of difficulty in arranging the connecting lines at each place, the connecting lines are mostly high-voltage lines for vehicles, the high-voltage lines for vehicles are made of thick materials, are not easy to bend, and have high manufacturing cost, and the devices inside the vehicle body are numerous and have narrow available space, so that the line arrangement of the connecting lines is particularly difficult. Compared with the prior art, in this embodiment, the connecting wire between the first power source 131 and the junction box 137, the connecting wire between the junction box 137 and the motor controller 134, the connecting wire between the motor controller 134 and the motor 133 is arranged on the right side of the straddle-type electric vehicle 100 along the front-back direction, the connecting wires at the three positions adopt the same-side arrangement mode, so that the required lengths of the connecting wires at the three positions are short, the connecting angle is smoother and smoother, the undersized bending angle does not exist, the arrangement difficulty of the connecting wires is reduced, the internal space of the straddle-type electric vehicle 100 can be fully utilized by the same-side arrangement mode, the overall arrangement length of the connecting wires can be effectively reduced, the arrangement cost can be reduced, the checking and the maintenance of the connecting wires at each position are facilitated, and the time cost consumed by the maintenance is reduced.

As one way of arranging the voltage transforming device 142, the voltage transforming device 142 is arranged at the rear 600 of the straddle electric vehicle 100. Specifically, the distance between the projection of the center of the transformer 142 on the first plane in the front-back direction and the projection of the center of the rear wheel 122 on the first plane in the front-back direction is D6, the ratio of D6 to D1 is greater than or equal to 0.07 and less than or equal to 0.37, the distance between the projection of the center of the transformer 142 on the second plane in the left-right direction and the projection of the center of the rear wheel 122 on the second plane in the left-right direction is H6, and the ratio of H6 to H1 is greater than or equal to 0.24 and less than or equal to 0.64, such an arrangement enables the installation position of the transformer 142 to be closer to the tail end of the straddle-type electric vehicle 100, thereby effectively saving the internal space of the straddle-type electric vehicle 100, providing more reserved space for the arrangement of other components of the straddle-type electric vehicle 100, and the installation position within the setting range can be arranged to avoid other important components of the straddle-type electric vehicle 100, such as a shock absorber, thereby preventing the transformer 142 from causing a hindrance to the operation of the shock absorber, meanwhile, the installation position of the transformer 142 is prevented from being excessively close to the tail end of the straddle-type electric vehicle 100, so that the wiring length and the wiring difficulty of the transformer 142 are increased.

As shown in fig. 15 and 16, the motor 133 is fixed on the frame 11 by bolts, a first mounting position 111 and a second mounting position 112 are provided on the frame 11, a plurality of mounting holes for mounting the motor 133 are distributed on the first mounting position 111, and a plurality of mounting holes for mounting the motor 133 are also distributed on the second mounting position 112. A plurality of mounting points are arranged on the motor 133 corresponding to the first mounting position 111 and the second mounting position 112, each mounting hole is in single-side butt joint with a mounting point on the frame 11, the mounting points are arranged on one side of the mounting hole, and the mounting holes are fixedly connected with the mounting points through bolts, so that the motor 133 is mounted. As an alternative implementation, the center of gravity of the motor 133 is disposed biased to the left side of the straddle-type electric vehicle 100 in the front-rear direction, the first mounting location 111 is disposed on the left side of the straddle-type electric vehicle 100 in the front-rear direction, and the second mounting location 112 is disposed on the right side of the straddle-type electric vehicle 100 in the front-rear direction and is disposed opposite to the first mounting location 111. When the motor 133 is mounted, each mounting point and the mounting hole are respectively penetrated and connected from both sides of the straddle-type electric vehicle 100 by bolts, and the bolts are mounted along the outside of the straddle-type electric vehicle 100 toward the inside of the straddle-type electric vehicle 100. The mounting point on the motor 133 is mounted from the left direction of the first mounting position 111 or the second mounting position 112 so that the mounting point is butted against the mounting hole in the first mounting position 111 or the second mounting position 112. As shown in fig. 17, a first nut 111b is provided on the first mounting position 111 on a side close to the inside of the straddle-type electric vehicle 100, and a first bolt 111a on the first mounting position 111 is fastened by the first nut 111b to fix a part of the motor 133 to the frame 11. On the second mounting position 112, a second bolt is screwed with the frame 11, and another part of the motor 133 is fixed on the frame 11, thereby completing the fixed mounting of the motor 133. In this implementation, the motor 133 is assembled from the right to the left of the straddle electric vehicle 100, and one side is fixed by the bolt and the nut, and the other side is provided with a thread in the frame 11 and is connected by the frame 11 thread. Due to the arrangement, the bolt on the first mounting position 111 has an adjustable mounting angle, a more flexible mounting angle can be provided for the motor 133, the requirement on the welding precision of the frame 11 is low, the motor 133 can adapt to frames 11 with different manufacturing tolerances, and the motor 133 is convenient to detach and mount.

As shown in fig. 18, the motor 133 includes an output shaft 1331, the output shaft 1331 extends in the vehicle width direction, the transmission system 17 includes a front sprocket 171, a rear sprocket 172, and a belt 173, the front sprocket 171 is connected to one end of the output shaft 1331, the output shaft 1331 can drive the front sprocket 171 to rotate, the rear sprocket 172 is disposed on the rear wheel 122, and the front sprocket 171 is connected to the rear sprocket 172 through the belt 173. The motor 133 outputs torque through the output shaft 1331, so that the output shaft 1331 drives the front sprocket 171 to rotate, the front sprocket 171 is in mesh transmission with the transmission belt 173, the transmission belt 173 is in mesh transmission with the rear sprocket 172, the front sprocket 171 transmits the rotating force to the rear sprocket 172 through the transmission belt 173, the rear sprocket 172 rotates, so that the rear wheel 122 obtains torque, the rear wheel 122 exerts a backward acting force on the ground, and therefore, the ground generates a forward acting force on the rear wheel 122. Thereby, the output of the motor 133 is transmitted to the rear wheel 122, and the rear wheel 122 can drive the straddle-type electric vehicle 100 to move forward. As an alternative implementation manner, the transmission belt 173 is a belt, the transmission belt 173 is connected from the front sprocket 171 to the rear sprocket 172 to form an annular shape, and is sleeved on the front sprocket 171 and the rear sprocket 172 with a certain tension, so that the transmission belt 173, the front sprocket 171 and the rear sprocket 172 are pressed against each other, the transmission belt 173 and the front sprocket 171 are seamlessly matched, the transmission belt 173 and the rear sprocket 172 are also seamlessly matched, the friction loss between the transmission belt 173 and the front sprocket 171 and the friction loss between the transmission belt 173 and the rear sprocket 172 can be effectively reduced, the structure is simple, and the manufacturing cost is low. Impact and vibration can be alleviated in the transmission process, the noise is lower, the durability is good, and the maintenance is convenient.

The saddle assembly 18 is disposed in the middle 500 of the straddle electric vehicle 100 and is fixedly connected to the frame 11 for seating a user. As shown in fig. 19, the saddle assembly 18 includes a saddle reinforcing plate 181, a connecting hook lock 182, a seat lock seat 183, a cable switch 184, a saddle 187, and a key switch 188, and the saddle 187 includes a first surface on which a driver can sit and a second surface close to the frame 11, and the first surface and the second surface are both disposed in an arc shape. Saddle 187 includes a first state locked to frame 11 and a second state configured to be unlocked from frame 11. The seat lock base 183 is fixed to the vehicle frame 11, and the saddle 187 is connected to the seat lock base 183 via the connecting hook lock 182, so that the saddle 187 is maintained in the first state. One end of the cable switch 184 is connected to the seat lock seat 183, and the seat lock seat 183 is capable of disconnecting the connection hook lock 182 from the seat lock seat 183 in response to the activation of the cable switch 184, and switching the saddle 187 from the first state to the second state. Similarly, one end of the key switch 188 is connected to the seat lock seat 183, and the seat lock seat 183 is capable of disconnecting the connecting hook lock 182 from the seat lock seat 183 and switching the saddle 187 from the first state to the second state in response to the activation of the key switch 188.

The saddle reinforcing plate 181 is provided on the second surface, the connecting hook lock 182 is provided on the saddle reinforcing plate 181, and one end of the connecting hook lock 182 can be connected with the seat lock seat 183. In the present embodiment, the seat lock bracket 183 is a seat cushion lock. As an implementation mode, still distribute a plurality of rubber pads on saddle 187's second face, the rubber pad has certain deflection, and usable rubber pad and 11 interference fit installations of frame realize the spacing fixed to saddle 187, can avoid saddle subassembly 18 and frame 11 to bump, and then cause the damage to saddle subassembly 18 or frame 11. When the seat lock seat 183 is unlocked, the rubber pad can provide upward elastic force to slightly bounce the saddle block assembly 18 upwards, so that an operation gap capable of accommodating hands of a user is provided for the user, and the opening and the dismounting of the saddle block assembly 18 are facilitated. It can be understood that through the further arrangement of the number of the rubber pads and the deformation amount of the rubber pads, the elastic force range of the saddle block assembly 18 and the rubber pads can be reasonably set, and the phenomenon that the elastic force is too large or too small to cause the elastic force of the rubber pads to lose efficacy is prevented.

As an implementation mode, the saddle reinforcing plate 181 is fixed on the second surface of the saddle 187 through a bolt, so that the saddle reinforcing plate 181 and the saddle assembly 18 form a detachable connection, the replacement, the maintenance and the like of the saddle reinforcing plate 181 are facilitated, and meanwhile, the connection tightness, the installation position and the like of the saddle reinforcing plate 181 can be finely adjusted through the bolt. One end of the connecting hook lock 182 can be fixed on the saddle reinforcing plate 181 by welding, so that the connecting hook lock 182 and the saddle reinforcing plate 181 are integrally arranged, the firmness of the connecting hook lock 182 is improved, and the connecting hook lock 182 has higher structural strength. During the installation, saddle unit 18's front end is connected with frame 11, and saddle unit 18's rear end contacts through the elastic switch of connecting coupler lock 182 with seat lock seat 183, and connecting coupler lock 182 cooperates the realization to the locking of connecting coupler lock 182 with the elastic switch, makes saddle 187 and seat lock seat 183 keep connecting, carries out spacing fixed to saddle 187 through rubber pad and frame 11 interference fit. When dismantling, need switch saddle 187 to the second state, in this kind of state, need to break off the connection of connecting hook lock 182 and elastic switch, make connecting hook lock 182 break away from elastic switch's constraint to saddle subassembly 18's rear end breaks away from the connection of seat lock seat 183, and the rubber pad provides ascending elasticity simultaneously, makes saddle subassembly 18 can upwards bounce to certain height, and the user breaks off the other end of saddle 187 again and is connected with frame 11 at last, alright completion dismantles saddle subassembly 18. In the prior art, the seat lock seat 183 is usually unlocked by the key switch 188, but this method has certain disadvantages, such as that the user cannot open the saddle assembly 18 when the user does not carry the key or the keyhole is damaged, and the saddle assembly 18 is not frequently opened or removed in daily use of the straddle-type electric vehicle 100, and the user needs to carry the key to deal with the opening or removal of the saddle assembly 18, which is very inconvenient for the user. In view of such circumstances, in the present embodiment, in addition to the key switch 188, a cable switch 184 connected to the seat lock seat 183 is provided, and the user can switch the saddle 187 from the first state to the second state by operating the cable switch 184, thereby opening or detaching the saddle assembly 18. Specifically, the cable switch 184 is provided between the body frame 11 and the body cover 19, and the cable switch 184 can be hidden inside the straddle electric vehicle 100. One end of the cable switch 184 is connected to the seat lock seat 183, one end of the cable switch 184 away from the seat lock seat 183 extends to the front portion 400 of the straddle-type electric vehicle 100, and the cable switch 184 is provided with a pull ring at the end, the pull ring provides a holding space, and a user can hold the pull ring and pull the pull ring by hand, so as to trigger the cable switch 184, disconnect the elastic switch of the seat lock seat 183 from the coupler lock 182, switch the saddle 187 from the first state to the second state, and unlock the saddle assembly 18. As an optional implementation, one end of the zipper switch 184 extending to the front portion 400 is located on the left side of the straddle-type electric vehicle 100 in the front-rear direction, and the pull ring is connected to the battery box 138, as a fixing manner, a pull ring hole is formed on the battery box 138 in a surrounding manner, the pull ring hole is located on the left side surface of the battery box 138, the pull ring is penetrated and connected to the pull ring hole, the pull ring enters the first chamber through the pull ring hole and is in clamping fit with the pull ring hole, so that the pull ring can be fixed on the battery box 138. In addition, a limiting part is further arranged on the outer wall of the battery box 138 to limit and fix the cord of the cord switch 184, the limiting part can be a limiting protrusion extending from the outer wall of the battery box 138, the limiting protrusion is in interference fit with the cord to limit and fix the cord, and the cord of the cord switch 184 is prevented from shaking during the running of the straddle-type electric vehicle 100 and interfering with other components inside the straddle-type electric vehicle 100, so that potential safety hazards are further caused. When using cable switch 184 to unlock seat lock seat 183, the user only needs to open automobile body covering 19 above battery case 138, pulls cable switch 184 at first cavity department, just can unlock saddle 187, makes the one end of saddle 187 can break away from seat lock seat 183, and this sets up to saddle 187 and provides another kind of unblock mode, not only the person's of facilitating the use operation, still provides multiple choice for saddle 187's the mode of opening, and the person of facilitating the use also can unlock saddle 187 under proruption situation.

The saddle assembly 18 also includes a strap arrangement configured to be grasped by a user. As one implementation, the strap-shaped device is a safety pull belt 186, the safety pull belt 186 is disposed on a first surface of the saddle 187, two ends of the safety pull belt 186 respectively surround from edges of left and right sides of the saddle 187 into a second surface of the saddle 187, and two ends of the safety pull belt 186 are connected with the saddle reinforcing plate 181 through bolts on the second surface of the saddle 187. As an optional implementation manner, bolts used for connecting the safety pull belts 186 are arranged on the saddle reinforcing plate 181 and fixed on the saddle reinforcing plate 181 in a welding manner, the safety pull belts 186 are sleeved on the bolts, and the bolts are fastened by using nuts, so that the safety pull belts 186 are limited on the bolts, and the fixing and installation of the safety pull belts 186 are completed. In this embodiment, the external force applied to the safety belt 186 can be transmitted to the saddle reinforcing plate 181 from both left and right directions, and then transmitted to the frame 11 through the connecting hook lock 182 and the seat lock seat 183 in sequence, so that the frame 11 provides a force counteracting the external force. This implementation mode utilizes many structures to conduct external force and transfers to frame 11 at last, can improve safety pull belt 186's stability and reliability, and safety pull belt 186 adopts the nylon material, and intensity is high and the wearability is good, makes the external force that is not less than 2000N that safety pull belt 186 can bear. In the prior art, the safety pull belt 186 is usually directly fixed on the frame 11, because the safety pull belt 186 has small elasticity and stretching amount, and is easy to bind the saddle 187, when a user detaches or installs the saddle assembly 18, the user needs to detach the safety pull belt 186 first, so that the detaching operation is not only complicated in steps, but also greatly improves the difficulty of detaching or installing the saddle 187. Safety stretching strap 186 is connected with saddle reinforcing plate 181 in this embodiment, sets up saddle reinforcing plate 181 on the second of saddle 187, makes saddle subassembly 18 and safety stretching strap 186 integrateable to set up, reduces the assembly degree of difficulty of saddle subassembly 18 and safety stretching strap 186, makes the fitting relation of saddle subassembly 18 and frame 11 more reasonable, and this kind of connected mode is more firm, has better reliability, and also convenient to use person dismantles saddle subassembly 18 or installs simultaneously.

As shown in fig. 20, a receiving cavity capable of receiving a driver tool is formed between the second surface of saddle 187 and frame 11, a mounting portion 185 is provided in the receiving cavity, mounting portion 185 is located on the second surface of saddle 187, the driver tool is capable of being engaged with mounting portion 185, and the driver tool is placed in the receiving cavity substantially along the length direction of saddle 187. In one implementation, the recess is an annular groove formed along the length of the saddle 187, and the diameter of the annular groove is greater than or equal to the outer diameter of the driver so that at least a portion of the driver can be inserted into the annular groove. As shown in fig. 21, the mounting portion 185 includes a first mounting portion 1851 and a second mounting portion 1852, and the on-board tool is mounted to the recess portion through the first mounting portion 1851 and the second mounting portion 1852. As one implementation mode, the distance between the first mounting portion 1851 and the second mounting portion 1852 is 105mm or more and 120mm or less, so that the mounting portion 185 has better adaptability, and can be adapted to a vehicle-mounted tool with a length of 110mm or more and 150mm or less. First installation department 1851 sets up the one end at spacing recess, and first installation department 1851 is for setting up the spacing muscle in spacing recess both sides, and second installation department 1852 sets up the other end at spacing recess, and second installation department 1852 is for setting up the spacing buckle on spacing recess, and spacing buckle can be fixed with the driver's instrument joint. As shown in fig. 22, in the first mounting portion 1851 of the present embodiment, the ratio of the distance between the first mounting portion 1851 and the second mounting portion 1852 to the total length of the saddle 187 is not less than 0.14 and not more than 0.34, so that the mounting area of the driver tool is developed in a limited space, the overall structure of the saddle 187 is not affected, the internal space of the straddle-type electric vehicle 100 can be saved, and the reduction in size of the straddle-type electric vehicle 100 is facilitated. As shown in fig. 23, a portion of the cart-mounted tool may extend in the direction of the first mounting portion 1851, which does not contact the second face, providing more receiving area for the cart-mounted tool. The driver tool may be a double-ended screwdriver or other tool that is capable of being matched in length to the mounting portion 185. In this embodiment, the area capable of fixing the driver tool is arranged on the accommodating cavity formed by the second surface of the saddle 187 and the frame 11, the mounting space is not required to be additionally provided, the mountable and fixed position can be provided for the commonly used driver tool, the driver tool can be kept stable during the driving of the straddle electric vehicle, and cannot interfere with other devices, the utilization rate of the internal space of the straddle electric vehicle 100 is effectively improved by the arrangement, and meanwhile, the driver tool is convenient to place and use.

The vehicle body covering part 19 includes a first shielding plate 191, a second shielding plate 192, a protection device 193, a battery box protection cover 194, a rear protection plate 195, and a damping device 196 fitted to the battery box protection cover 194, the battery box protection cover 194 is disposed above the battery box 138, the first shielding plate 191 and the second shielding plate 192 cover the left side and the right side of the battery box 138 in the front-rear direction, and also protect the battery box 138, the protection device 193 covers the charging interface 132, and the rear protection plate 195 is disposed on both sides of the saddle assembly 18 and extends to the rear end of the straddle electric vehicle 100.

As shown in fig. 24, first and

second shielding plates

191, 192 are provided on the left and right sides of the straddle-type electric vehicle 100 in the front-rear direction, and the first and

second shielding plates

191, 192 serve to protect the battery case 138 from dust, water, or other substances. As one implementation, the first shielding plate 191 is provided on the right side of the straddle-type electric vehicle 100 in the front-rear direction, and the second shielding plate 192 is provided on the left side of the straddle-type electric vehicle 100 in the front-rear direction, and as one implementation, the protector 193 is provided on the second shielding plate 192.

As shown in fig. 25 and 26, the protection device 193 is disposed outside the charging interface 132 for shielding and protecting the charging interface 132 and preventing dust, water or other contaminants from entering the charging interface 132. Protection device 193 includes visor 1931, protection casing 1932, first rotating column 1933, second rotating column 1934, first torsion spring 1935 and damping mechanism 1936, visor 1931 sets up the position that corresponds charging interface 132, visor 1931 can shelter from charging interface 132, visor 1931 includes first cooperation state and second cooperation state for protection casing 1932, visor 1931 is being driven and is switching over to the second cooperation state at first cooperation state with first speed by first effort, damping mechanism 1936 provides the second effort opposite with first effort to drive visor 1931 and switch over to first cooperation state by second cooperation state with the second speed, first speed is greater than the second speed. For convenience of description, the first mating state is a state in which the protective cover 1931 is locked to the protective housing 1932, and the second mating state is a state in which the protective cover 1931 and the protective housing 1932 are unlocked. Protection casing 1932 passes through bolted connection on second shielding plate 192, encloses to have one in protection casing 1932 to be used for matching the installation position of the interface 132 that charges, installation position and the interface 132 clearance fit that charges, the width more than or equal to 10mm and less than or equal to 20mm in clearance, this kind of setting is down, the assembly of the protection device 193 of not only being convenient for, can also reserve more operating space, can conveniently charge interface 132 and the butt joint of rifle 32 that charges or carry out other operations. The first and second

rotating columns

1933 and 1934 are disposed on both sides of the protective housing 1932. As an implementation, it has a plurality of mounting holes to enclose on the protection casing 1932, first pillar 1933 and second pillar 1934 set up in the mounting hole of difference, first pillar 1933 and second pillar 1934 can rotate for the mounting hole, first pillar 1933 installs the one side at protection casing 1932, second pillar 1934 installs the opposite side at protection casing 1932, and the both ends of visor 1931 respectively with first pillar 1933, second pillar 1934 articulates, thereby make visor 1931 can rotate for protection casing 1932. As an implementation, the visor 1931 with first column spinner 1933 articulated extends and has fixed part 1931a, is provided with joint groove 1932a on protection casing 1932, and the fixed part 1931a of visor 1931 can cooperate with joint groove 1932a joint, makes visor 1931 keep first cooperation state, and fixed part 1931a breaks away from joint groove 1932a, makes visor 1931 switch to second cooperation state from first cooperation state. The fixing portion 1931a includes a first fitting position and a second fitting position corresponding to the first fitting state and the second fitting state. The first torsion spring 1935 is wound around the first rotation column 1933, one end of the first torsion spring 1935 is fixed on the first rotation column 1933, and the other end is connected with the protective cover 1931. Damping mechanism 1936 (the specific structure is similar to damper 1965 in fig. 33, see fig. 33) is fixedly mounted on protective housing 1932 and is on the same side as second rotating column 1934, damping mechanism 1936 is close to second rotating column 1934, damping mechanism 1936 is connected with protective cover 1931, and damping mechanism 1936 is in meshing transmission fit with protective cover 1931. As shown in fig. 25a and 25b, when the protective cover 1931 is in the first fitting state, the protective cover 1931 can rotate in the first rotation direction, and finally the fixing portion 1931a reaches the first fitting position, the fixing portion 1931a is fixed to the snap groove 1932a in a snap manner, the first torsion spring 1935 enters the first state, and the protective cover 1931 stops moving, so that the protective cover 1931 is closed. As shown in fig. 26a and 26b, when the protection cover 1931 is in the second fitting state, the first torsion spring 1935 enters the second state, the rotation force generated by the first torsion spring 1935 enables the protection cover 1931 to rotate in the second rotation direction, the fixing portion 1931a is disconnected from the snap groove 1932a, the protection cover 1931 is in meshing transmission with the damping mechanism 1936, the damping mechanism 1936 provides an acting force for obstructing the rotation of the protection cover 1931, and further slows down the rotation speed of the protection cover 1931 in the left-right direction, and finally the fixing portion 1931a reaches the second fitting position, and the protection cover 1931 stops moving, so as to complete the opening of the protection cover 1931. The user can disconnect the fixing portion 1931a from the clip groove 1932a by pressing the protective cover 1931, so that the protective cover 1931 enters a second fitting state. As one implementation, the angle by which the protective cover 1931 can rotate between the first mating state and the second mating state is greater than or equal to 75 ° and less than 90 ° corresponding to the first mating position and the second mating position. When the charger 31 is connected to charge the battery box 138, the protective cover 1931 is in the second fitting state, and the protective cover 1931 is located at the second fitting position. When striding type electric motor car 100 and charging in the open air and meet the proruption rainfall condition, this kind of angle setting makes visor 1931 can lead to the outside of striding type electric motor car 100 with the rainwater, prevents that the rainwater from being led into in protection casing 1932 or getting into the interface 132 that charges and causing the damage to battery case 138, under the open mode of visor 1931, can hide the part of visor 1931 to protection casing 1932 in, reserve more operating space simultaneously. It is understood that the protective cover 1931 needs to cope with frequent opening or closing due to the energy supply requirement of the straddle electric vehicle 100, but the frequent opening or closing operation causes relatively large friction loss to various components of the protective cover 1931, thereby affecting the service life of the protective cover 1931. Compare in prior art, in this embodiment, visor 1931 passes through the attenuator 1965 and locates on frame 11, and the opening speed of steerable visor 1931 can effectively improve visor 1931 durability, reduces the frictional wear when opening and closing at every turn, increases life, and low in maintenance cost is honest and clean.

The battery case protective cover 194 covers the battery case 138, and as shown in fig. 27 and 28, the battery case protective cover 194 includes a first engagement state and a second engagement state with respect to the battery case 183, one end of the battery case protective cover 194 is connected to a damping device 196, and the damping device 196 is mounted on the vehicle frame 11. When the battery pack protection cover 184 is driven by the first acting force and switched from the first fitting state to the second fitting state at the first speed, the damping device 196 provides a second acting force opposite to the first acting force and drives the battery pack protection cover 184 to switch from the second fitting state to the first fitting state at the second speed, and the first speed is greater than the second speed.

For convenience of illustration, in the present embodiment, the first mating state is a state where the battery box protection cover 194 is locked to the frame 11, and the second mating state is a state where the battery box protection cover 194 and the frame 11 are unlocked.

As shown in fig. 29, 30 and 31, the damping device 196 includes a support member 1961, a rotation member 1962 and a damper 1963, the support member 1961 is used for supporting the rotation member 1962 and the damper 1963, one end of the support member 1961 is connected to the vehicle frame, one end of the support member 1961 away from the vehicle frame is connected to the battery compartment protection cover 194, the rotation member 1962 is at least partially connected to the support member 1961, the rotation member 1962 is capable of providing a first force to the support member 1961, the damper 1963 is at least partially connected to the support member 1961, and the damper 1963 is capable of providing a second force to the support member 1961 opposite to the first force. As one implementation, the support assembly 1961 includes a support base 1961a and an adaptor bracket 1961b, the rotation assembly 1962 includes a second torsion spring 1962a and a rotation shaft 1962b, the support base 1961a is fixedly coupled to the frame 11 at least partially by bolts, the adaptor bracket 1961b is disposed on the support base 1961a, a fixing hole for mounting the rotation shaft 1962b is defined in the support base 1961a, the rotation shaft 1962b is mounted in the fixing hole in parallel with a bottom surface of the support base 1961a, the rotation shaft 1962b is rotatable with respect to the support base 1961a, one end of the adaptor bracket 1961b is connected to the battery case protection cover 194, the other end of the adaptor bracket 1961b is hinged to the rotation shaft 1962b, and the adaptor bracket 1961b is rotatable with respect to the rotation shaft 1962b, such that the battery case 194 is also rotatable with respect to the rotation shaft 1962 b. The second torsion spring 1962a is wound around the rotation shaft 1962b, the damper 1963 is provided on the support seat 1961a, and the damper 1963 is coupled to the adaptor bracket 1961b such that the damper 1963 blocks the rotation of the adaptor bracket 1961b when the adaptor bracket 1961b rotates. As one implementation, one end of the second torsion spring 1962a is connected to the adapter 1961b, the other end of the second torsion spring 1962a is connected to the support 1961a, the damper 1963 includes a first damper 1963a and a second damper 1963b, the first damper 1963a is connected to the adapter 1961b, the first damper 1963a is disposed above the second damper 1963b, and the first damper 1963a is at least partially connected to the second damper 1963b, the first damper 1963a is disposed perpendicular to the second damper 1963b, and the second damper 1963b is used to block the first damper 1963a from moving. The battery case protective cover 194 includes a first fitting state and a second fitting state, corresponding to the first fitting state and the second fitting state, and the first damper 1963a and the second damper 1963b include a first fitting position and a second fitting position. Both ends of the first damper 1963a are connected to the adaptor bracket 1961b, respectively, the second damper 1963b is vertically inserted through the bottom surface of the support seat 1961a, and the second damper 1963b is fixed on the support seat 1961a by bolts. A first limit post is arranged on the adapting frame 1961b, the first limit post is positioned on the left side of the adapting frame 1961b, a second limit post is arranged on the supporting seat 1961a, the second limit post is positioned on the right side of the supporting seat 1961a, one end of the second torsion spring 1962a is connected with the first limit post, and the other end of the second torsion spring is connected with the second limit post. When the battery box protection cover 194 is switched from the second engagement state to the first engagement state, the battery box protection cover 194 can rotate in the first rotation direction, the battery box protection cover 194 drives the adaptor bracket 1961b to rotate in the first rotation direction, the adaptor bracket 1961b drives the first damper 1963a to move vertically upward, the second damper 1963b provides a force to block the first damper 1963a, the second torsion spring 1962a deforms to apply a rotation force to the adaptor bracket 1961b during the rotation of the adaptor bracket 1961b, until the first damper 1963a and the second damper 1963b reach the first engagement position after the other end of the battery box protection cover 194 is connected to the vehicle frame 11, the battery box protection cover 194 stops moving, and the second torsion spring 1962a is in the first state, thereby completing the closing of the battery box protection cover 194. When the battery pack protection cover 194 is switched from the first engagement state to the second engagement state, the second torsion spring 1962a enters the second state, the rotational force applied by the second torsion spring 1962a to the adaptor bracket 1961b enables the adaptor bracket 1961b to rotate in the second rotational direction, the adaptor bracket 1961b receives the rotational force of the second torsion spring 1962a, thereby driving the first damper 1963a to move vertically downward, the first damper 1963a moves downward and pushes the second damper 1963b to move, the second damper 1963b provides a force to block the movement of the first damper 1963a, thereby slowing the downward movement of the second damper 1963b, thereby slowing the rotational speed of the adaptor bracket 1961b, thereby affecting the rotational speed of the battery pack protection cover 194 in the second rotational direction, and when the first damper 1963a and the second damper 1963b reach the second engagement position, the battery pack protection cover 194 stops moving, the opening of the cartridge protection cover 194 is completed. The first state of the second torsion spring 1962a is a state in which the second torsion spring 1962a is compressed by a force, and the second state of the second torsion spring 1962a is a state in which the second torsion spring 1962a is extended.

As shown in fig. 32, as another implementation of a damper 1963. As shown in fig. 33, the second torsion spring 1962a is disposed on the rotating shaft 1962b at a predetermined interval, and the center of the second torsion spring 1962a is connected to the support seat 1961a, and is restricted by the stopper portion disposed on the support seat 1961 a. Both ends of the second torsion spring 1962a are respectively connected to both sides of an adapter 1961b, the adapter 1961b is hinged to a rotary shaft 1962b, the adapter 1961b is rotatable with respect to the rotary shaft 1962b, and a gear tooth structure is further provided on the adapter 1961b to transmit and cancel a rotational force of the second torsion spring 1962a by cooperation with a damper 1963. In this implementation, two dampers 1963 are disposed opposite to each other on both sides of the support seat 1961a, one damper 1963 is connected to one end of the adapter 1961b, and the other damper 1963 is connected to the other end of the adapter 1961 b. Specifically, the damper 1963 includes a gear 1963c, a fixed shaft 1963d, and a base plate 1963e, the base plate 1963e is fixedly coupled to the support base 1961a by bolts, one end of the fixed shaft 1963d is fixed to the base plate 1963e, the other end is coupled to the gear 1963c, and the gear 1963c is rotatable about the fixed shaft 1963 d. The adapter 1961b is geared with the gear 1963c via a gear tooth arrangement, the adapter 1961b including a first mating position and a second mating position corresponding to the first mating condition and the second mating condition. When the battery box protection cover 194 is switched from the second engagement state to the first engagement state, the battery box protection cover 194 can rotate in the first rotation direction, the battery box protection cover 194 drives the adaptor rack 1961b to rotate in the first rotation direction, the gear tooth structure on the adaptor rack 1961b is engaged with the gear 1963c, the fixed shaft 1963d is engaged with the chassis 1963e to provide an acting force for blocking the rotation of the gear 1963c, and the gear 1963c is further prevented from being engaged with the gear tooth structure, so that the rotation speed of the adaptor rack 1961b is reduced. During the rotation of the adaptor bracket 1961b, the second torsion spring 1962a is deformed to apply a rotational force to the adaptor bracket 1961b, and when the other end of the battery pack protection cover 194 is fixedly coupled to the vehicle body frame 11, the adaptor bracket 1961b reaches the first engagement position, and the second torsion spring 1962a enters the first state, completing the closing of the battery pack protection cover 194. When the battery pack protecting cover 194 is switched from the first engaging state to the second engaging state, the second torsion spring 1962a enters the second state, the rotation force generated by the second torsion spring 1962a enables the adaptor rack 1961b to rotate in the second rotation direction, when the adaptor rack 1961b rotates in the second rotation direction, the gear 1963c is in mesh transmission with the gear structure, the fixed shaft 1963d cooperates with the chassis 1963e to provide a force for blocking the rotation of the gear 1963c, so as to slow down the rotation speed of the adaptor rack 1961b and further affect the rotation speed of the battery pack protecting cover 194, and finally the adaptor rack 1961b reaches the second engaging position, the battery pack protecting cover 194 stops moving, and the battery pack protecting cover 194 is opened. In the above two implementations, the maximum angle formed between the battery box protection cover 194 and the supporting seat 1961a corresponding to the first engaging position and the second engaging position is greater than or equal to 75 ° and less than or equal to 120 °, so that the battery box protection cover 194 can be opened to the maximum extent, and a user can obtain a larger operating space and a wider operating field, thereby facilitating the user to access the articles in the battery box 138. As an alternative implementation, in order to avoid interference of the battery case protection cover 194 with other components of the straddle-type electric vehicle 100 in the second engagement state, and to facilitate the user to access the articles in the battery case 138 or to perform operations such as inspection, replacement, etc. of the first power source 131, the angle at which the battery case protection cover 194 can rotate in the first engagement state and in the second engagement state is equal to or greater than 75 ° and equal to or less than 80 °. The other end of the battery box protection cover 194 is fixed through the electromagnetic lock 197, the electromagnetic lock 197 is fixedly connected with the frame 11, the electromagnetic lock 197 is used as a switch, the first battery box protection cover 194 can be opened and closed, and a user can control the battery box protection cover 194 to be switched between a first matching state and a second matching state through the electromagnetic lock 197. The installation and fixation of the battery box protection cover 194 are realized through the electromagnetic lock 197 and the damping device 196 in the embodiment, and the electromagnetic lock 197 is arranged to enable the battery box protection cover 194 to be opened and closed more simply, conveniently and quickly. In both of the above-described implementations, the damping means 196 is provided to provide greater stability to the battery pack protection cover 194 during rotation, meanwhile, the battery box protective cover 194 can be frequently switched and is not easy to lose efficacy, the service life of the battery box protective cover 194 can be prolonged, the damping device 196 can utilize the pressure difference of each component in the damping device to realize the automatic turnover of the battery box protective cover 194, at the same time, the turning speed of the battery box protection cover 194 can be slowed down, so that the rotation speed of the battery box protection cover 194 is gentle when the battery box protection cover 194 is opened, the safety and reliability can be improved, and the second torsion spring 1962a can be effectively prevented from being damaged when the electromagnetic lock 197 is unlocked, the rotational force instantaneously released by the second torsion spring 1962a is too large, so that the rotational speed of the battery pack protecting cover 194 is too fast, and the user cannot avoid a safety distance, thereby causing injury to the user.

As shown in fig. 34, the rear protection plate 195 is provided on both sides of the saddle unit 18 to cover the rear portion 600 of the saddle-ride type electric vehicle 100, and is also used to mount the tail light 22 of the saddle-ride type electric vehicle 100, and the tail light 22 is connected to the rear protection plate 195 such that the tail light 22 is mounted on the rear portion 600 of the saddle-ride type electric vehicle 100. The rear protection plate 195 includes a first side plate 1951, a second side plate 1952, and a buffer assembly 1953, and the rear lamp 22 is connected to the first side plate 1951 and the second side plate 1952 at both sides of the rear portion 600 of the straddle electric vehicle 100, respectively, and the first side plate 1951 and the second side plate 1952 are symmetrically disposed with respect to the vehicle frame. The first side plate 1951 and the second side plate 1952 are both made of materials including ABS, so that the first side plate 1951 and the second side plate 1952 have certain surface hardness, and also have high elasticity and toughness, and also have the advantage of low manufacturing cost, the thickness of the first side plate 1951 is greater than or equal to 2mm and less than or equal to 4mm, the thickness of the second side plate 1952 is greater than or equal to 2mm and less than or equal to 4mm, the overall weight of the straddle-type electric vehicle 100 is effectively reduced, and the light weight of the straddle-type electric vehicle 100 is facilitated. As an alternative implementation, the first side plate 1951 is disposed at the right side of the straddle-type electric vehicle 100 in the front-rear direction, the second side plate 1952 is disposed at the left side of the straddle-type electric vehicle 100 in the front-rear direction, each of the first side plate 1951 and the second side plate 1952 is provided with three mounting points for connecting and fixing with the frame 11, taking the first side plate 1951 as an illustration, the three mounting points are a first mounting point 1954, a second mounting point 1955 and a third mounting point 1956, the first mounting point 1954, the second mounting point 1955 and the third mounting point 1956 are distributed in a triangular shape, and the distance between the first mounting point 1954 and the second mounting point 1955 is substantially the same as the distance between the first mounting point 1954 and the third mounting point. When mounted, the tail light 22 has one or more axes of symmetry, and the tail light 22 comprises a first mounting seat 221 and a second mounting seat 222, the first mounting seat 221 and the second mounting seat being arranged symmetrically with respect to the axis of symmetry. The first mounting seat 221 is connected to the first side plate 1951 by bolts, and the second mounting seat 222 is connected to the second side plate 1952 by bolts, so that the tail lamp 22 can be seamlessly attached to the first side plate 1951 and the second side plate 1952, and then the first side plate 1951 and the second side plate 1952 are fixed to the frame 11. A connecting portion 1957 is further provided between the first side plate 1951 and the second side plate 1952, and the connecting portion 1957 is connected to the frame 11 through a cushion assembly 1953. As shown in fig. 35, the buffering assembly 1953 includes a mounting bolt 1953a, a first buffering member 1953b and a second buffering member 1953c, wherein the first buffering member 1953b is sleeved on the mounting bolt 1953a, one end of the first buffering member 1953b abuts against the head of the mounting bolt 1953a, and the other end of the first buffering member 1953b abuts against the frame 11. The second cushion 1953c is sleeved on the first cushion 1953b, a portion of the second cushion 1953c is disposed between the connecting portion 1957 and the mounting bolt 1953a, and the second cushion 1953c is attached to the connecting portion 1957 and the mounting bolt 1953 a. The second cushion 1953c is partially disposed between the connecting portion 1957 and the frame 11, and the second cushion 1953c is attached to the connecting portion 1957 and the frame 11. During the driving of the electric straddle-type vehicle 100, the buffering assembly 1953 provides a buffering force between the rear protection plate 195 and the frame 11, so as to reduce the vibration of the rear portion 600 of the electric straddle-type vehicle 100, so that the rear protection plate 195 or the frame 11 is not easily shaken, thereby preventing the rear lamp 22 from colliding with the frame 11 or the rear protection plate 195, and preventing the rear lamp 22 from rubbing against the first side plate 1951 or the second side plate 1952 due to shaking. In this embodiment, the tail light 22 is fixedly mounted on the rear protection plate 195, so that the tail light 22 and the rear protection plate 195 are integrally assembled and then fixedly mounted on the frame 11, thereby effectively solving the problem of the seam matching between the tail light 22 and the rear protection plate 195, and one end of the rear protection plate 195 is connected with the frame 11 by the buffer assembly 1953 for damping, thereby preventing the rear protection plate 195 from vibrating along with the frame 11, and further solving the problem that the tail light 22 is likely to collide with the rear protection plate 195 or the frame 11.

The heat dissipation system 16 is disposed at the front portion 400 of the straddle electric vehicle 100, and is disposed close to the motor 133 and the motor controller 134, for performing heat dissipation and cooling for the motor 133 and the motor controller 134. As shown in fig. 36, the heat dissipation system 16 includes a heat sink 161, a water bottle 162, a water pump 163, and a heat dissipation pipeline 164, wherein the water bottle 162 is communicated with the heat sink 161 through the heat dissipation pipeline 164, and the heat sink 161 is communicated with the water pump 163 through the heat dissipation pipeline 164. The kettle 162 is provided with a coolant for absorbing heat, the radiator 161 is used for transferring the heat in the coolant to the ambient air, the water pump 163 is used for pressurizing the coolant, and the water pump 163 is capable of adjusting the speed of the coolant flowing in the heat radiating pipe 164. The kettle 162 transfers the coolant to the radiator 161 through the heat radiation pipe 164, and as shown in fig. 37, a first heat radiation pipe 1341 through which the coolant flows is provided inside the motor controller 134, and a second heat radiation pipe 1332 through which the coolant flows is provided inside the motor 133. The coolant flows from the radiator 161 to the motor controller 134, the motor 133, and the water pump 163 in this order, and finally the coolant is transferred to the radiator 161 by the water pump 163 to form a circulation cycle of the coolant, thereby performing water-cooling heat dissipation on the motor controller 134 and the motor 133. In the present embodiment, the motor controller 134 participates in the cooling cycle in preference to the motor 133, and this setting is because the motor controller 134 has a lower temperature resistance value than the motor 133 and a poor heat resistance, so the motor controller 134 is disposed closer to the heat sink 161. This application water-cooling heat dissipation's mode cools off motor 133 and motor controller 134, can carry out effectual temperature control to the high rotational speed motor 133 of high power, can also reduce the inside temperature of motor controller 134 simultaneously. Specifically, the heat dissipation pipeline 164 includes a first pipeline 1641, a second pipeline 1642, a third pipeline 1643, a fourth pipeline 1644 and a fifth pipeline 1645, the kettle 162 is communicated with the heat sink 161 through the first pipeline 1641, the heat sink 161 is connected with the first heat dissipation pipeline 1341 through the second pipeline 1642, the first heat dissipation pipeline 1341 is connected with the second heat dissipation pipeline 1332 through the third pipeline 1643, the second heat dissipation pipeline 1332 is connected with the water pump 163 through the fourth pipeline 1644, and the water pump 163 is connected with the heat sink 161 through the fifth pipeline 1645. In the heat dissipation system 16, the whole water-cooling circulation loop is composed of the kettle 162, the first pipeline 1641, the radiator 161, the second pipeline 1642, the first heat dissipation pipeline 1341, the third pipeline 1643, the second heat dissipation pipeline 1332, the fourth pipeline 1644, the water pump 163, the fifth pipeline 1645 and the radiator 161 in sequence according to the transmission of the cooling liquid.

The radiator 161 is disposed at the front 400 of the straddle electric vehicle 100, is located in front of the motor controller 134, and can better receive the ambient air entering from the front end of the straddle electric vehicle 100. The radiator 161 is used for transferring heat in the cooling liquid to the ambient air, the radiator 161 is perpendicular to the ground, the cooling liquid flows on the blades of the radiator 161, the cooling liquid is in contact with the ambient air through the radiator 161, the contact area of the cooling liquid and the ambient air can be effectively increased, the utilization rate of the windward side of the radiator 161 is the highest, the 100% windward effect can be achieved, and the cooling liquid can be in full contact with the ambient air on the surface 161 of the radiator. During the driving of the saddle-ride type electric vehicle 100, a large amount of ambient air is introduced from the front portion 400 of the saddle-ride type electric vehicle 100, flows through the radiator 161, and then passes through the radiator 161, so that the coolant flowing on the surface of the radiator 161 is in contact with the ambient air, and the ambient air carries away most of the heat of the coolant, thereby cooling the coolant.

As an alternative implementation manner, the kettle 162 is detachably fixed on the frame 11 by bolts, and supplies a coolant for the water cooling circulation, and the coolant is communicated with one end of the radiator 161 by the first pipeline 1641, so that the coolant in the kettle 162 can supplement the coolant for the radiator 161 in real time. Kettle 162 can adopt transparent material to make, and still be provided with the water level scale mark on kettle 162, can observe the coolant liquid storage condition inside kettle 162, through the observation area that sets up the position that corresponds with kettle 162 at automobile body covering 19, the condition of kettle 162 is observed from striding the formula electric motor car 100 outside to the person of facilitating the use, can obtain the specific numerical value of coolant liquid surplus through the scale mark, the user is to the in service behavior of understanding the coolant liquid that can understand to judge whether need carry out the replenishment to kettle 162.

As an alternative implementation manner, the cooling liquid is transferred to the inside of the motor controller 134 from the second pipeline 1642, and the cooling liquid is made to flow inside the motor controller 134 through the first heat dissipation pipeline 1341, and then flows to the third pipeline 1643 after passing through the motor controller 134, so as to take away heat of the motor controller 134 and dissipate heat for the motor controller 134. As shown in fig. 30, as an optional implementation manner, the first heat dissipation pipe 1341 is disposed inside the motor controller 134, a preset space is disposed inside the motor controller 134, the first heat dissipation pipe 1341 is disposed in the preset space, and the first heat dissipation pipe 1341 is bent in the preset space as much as possible, and this configuration manner can increase the disposition length of the first heat dissipation pipe 1341 to the maximum extent, thereby increasing the contact area between the first heat dissipation pipe 1341 and a heat source in the motor controller 134, and simultaneously increasing the flowing time of the cooling liquid, so that the cooling liquid can sufficiently take away heat generated by the motor controller 134, and reduce the internal temperature of the motor controller 134.

The cooling fluid passing through the first heat dissipation pipe 1341 enters the second heat dissipation pipe 1332 through the third pipe 1643, and the cooling fluid flows inside the motor 133 to remove heat generated inside the motor 133, thereby dissipating heat from the motor 133. As an optional implementation manner, a preset circumferential space is provided inside the motor 133, the second heat dissipation pipe 1332 is disposed in the preset circumferential space, the second heat dissipation pipe 1332 surrounds the central axis of the motor 133 as a circle center, and the second heat dissipation pipe 1332 is bent as much as possible in the preset circumferential space, such an implementation manner can effectively increase the length of the second heat dissipation pipe 1332, further increase the contact area between the second heat dissipation pipe 1332 and the heat source inside the motor 133, and simultaneously increase the time of the cooling liquid flowing through the motor 133, so that the cooling liquid can sufficiently cool and take away the heat inside the motor 133. In order to improve the heat conduction of the second heat dissipation pipe 1332, the second heat dissipation pipe 1332 is hermetically bonded inside the motor 133 in a glue filling manner, as an implementation manner, the second heat dissipation pipe 1332 may be disposed between a stator winding of the motor 133 and a housing of the motor 133, a gap is left between the second heat dissipation pipe 1332 and the stator winding, and then heat can be transferred between the stator winding and the second heat dissipation pipe 1332 only through air, so that the heat transfer efficiency is extremely low, the gap between the stator winding and the second heat dissipation pipe 1332 is filled in the glue filling manner, and the heat dissipation performance of the motor 133 can be greatly improved by using glue with good heat conductivity. As an implementation manner, the first heat dissipation pipe 1341 and the second heat dissipation pipe 1332 both use aluminum alloy as a material, so that the first heat dissipation pipe 1341 and the second heat dissipation pipe 1332 have good corrosion resistance, lighter weight, better durability, and easy production and processing.

The water pump 163 is used for pressurizing the coolant, provide power for the whole water-cooling circulation loop, ensure that the coolant can flow in the whole water-cooling circulation loop, the water pump 163 carries the coolant to the other end of the radiator 161 through the fifth pipeline 1645, because the distance between the water pump 163 and the radiator 161 is far away, compare in first pipeline 1641, the second pipeline 1642, the third pipeline 1643 and the fourth pipeline 1644, the length of arrangement of the fifth pipeline 1645 is the longest, for avoiding the situation that the fifth pipeline 1645 rocks during the driving of the straddle electric vehicle 100, the fifth pipeline 1645 is fixedly installed on the frame 11 through the spacing clamp, the spacing clamp can carry out the restriction on the fifth pipeline 1645 in the horizontal and vertical directions, prevent the fifth pipeline 1645 from rocking. In this embodiment, the water pump 163 can selectively operate according to the internal temperature of the motor 133 or the motor controller 134, that is, the water pump 163 adjusts the pressure applied to the coolant according to the temperature of the motor 133 and/or the motor controller 134, and then adjusts the flow speed of the coolant in the whole circulation loop, and this arrangement can effectively optimize the heat dissipation performance of the heat dissipation system 16, thereby being beneficial to energy saving and avoiding unnecessary energy consumption in the heat dissipation process.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

1. A straddle-type electric vehicle comprising:

a frame;

the wheel assembly comprises a front wheel and a rear wheel which are arranged below the frame;

a suspension system for connecting the wheel assembly to the frame;

a saddle assembly disposed above the frame and on which at least a driver can ride;

the vehicle body covering part covers the vehicle frame and is connected with the vehicle frame;

a tail light for indicating the presence of the straddle electric vehicle to an observer;

it is characterized in that the preparation method is characterized in that,

the automobile body covering includes the back protection shield, the back protection shield centers on at least part the frame distributes, the back protection shield includes first curb plate, second curb plate and buffering subassembly, first curb plate at least part with the second curb plate is connected, one side of tail lamp with first curb plate is connected, the opposite side of tail lamp with the second curb plate is connected, the back protection shield at least part is passed through buffering subassembly with the frame is connected, the buffering subassembly does the back protection shield with provide the buffering between the frame.

2. The straddle-ride type electric vehicle according to claim 1,

the first side plate and the second side plate are also provided with a connecting part therebetween, and the connecting part is connected with the frame through the buffer assembly.

3. The straddle-type electric vehicle according to claim 2, wherein the buffer assembly comprises a mounting bolt, a first buffer member and a second buffer member, the first buffer member is sleeved on the mounting bolt, one end of the first buffer member abuts against the head of the mounting bolt, and the other end of the first buffer member abuts against the frame; the second buffer piece is sleeved on the first buffer piece, at least part of the second buffer piece is arranged between the connecting part and the mounting bolt, and the first buffer piece is attached to the connecting part and the mounting bolt; the second buffer piece is at least partially arranged between the connecting portion and the frame, and the second buffer piece is attached to the connecting portion and the frame.

4. The straddle-ride type electric vehicle according to claim 1,

the first side plate and the second side plate are symmetrically arranged about the frame;

the first side plate and the second side plate are both made of ABS material.

5. The straddle-ride type electric vehicle according to claim 1,

the thickness of the first side plate is more than or equal to 2mm and less than or equal to 4 mm;

the thickness of the second side plate is greater than or equal to 2mm and less than or equal to 4 mm.

6. The straddle-ride type electric vehicle according to claim 1,

the first curb plate with all be provided with three mounting point that is used for bolted connection on the second curb plate, it is three the mounting point is first mounting point, second mounting point and third mounting point respectively, first mounting point the second mounting point with the third mounting point is triangular distribution.

7. The straddle-ride type electric vehicle according to claim 6,

a distance between the first mounting point and the second mounting point is the same as a distance between the first mounting point and the third mounting point.

8. The straddle-ride type electric vehicle according to claim 1,

the power system of the straddle electric vehicle comprises a first power supply, a charging interface, a motor controller, a junction box and a battery box for placing the first power supply, wherein the motor is arranged between the front wheel and the rear wheel, a straight line perpendicular to the bottom surface of the first power supply is a first straight line, a straight line from the center of the motor to the center of the front wheel is a second straight line, and a straight line from the center of the motor to the center of the rear wheel is a third straight line; the plane where the front and back direction and the up and down direction of the straddle-type electric vehicle are located is taken as a first plane, the projection of the first straight line on the first plane is taken as a first straight line projection, the projection of the second straight line on the first plane is taken as a second straight line projection, the projection of the third straight line on the first plane is taken as a third straight line projection, the included angle between the first straight line projection and the second straight line projection is greater than or equal to 50 degrees and less than or equal to 90 degrees, and the included angle between the first straight line projection and the third straight line projection is greater than or equal to 60 degrees and less than or equal to 100 degrees;

the plane of the front-back direction and the left-right direction of the straddle-type electric vehicle is used as a third plane, the first power supply is obliquely arranged, and an included angle formed by the bottom surface of the first power supply and the third plane is more than or equal to 10 degrees and less than or equal to 30 degrees.

9. The straddle-ride type electric vehicle according to claim 1,

the tail light has one or more symmetry axes, and the tail light includes first mount pad and second mount pad, first mount pad with the second mount pad is relative the symmetry axis symmetry sets up.

10. The straddle-ride type electric vehicle according to claim 9,

the tail lamp passes through first mount pad with first curb plate is connected, the tail lamp passes through the second mount pad with the second curb plate is connected.