Electric two-wheeled vehicle

Abstract

The application discloses an electric two-wheeled vehicle, which comprises a frame, a vehicle body cover, a walking system, a power assembly and a power battery, the vehicle body cover is connected with the frame, the power assembly is in transmission connection with the walking system, the power battery is in electrical connection with the power assembly, the vehicle body cover is at least partially made of a metal material or a flame-retardant composite material, a part of the vehicle body cover made of the metal material or the flame-retardant composite material is jointly formed with the frame into a containing space, the power battery is located in the containing space, the electric two-wheeled vehicle comprises a storage unit, a release unit and a detection unit, the storage unit is internally provided with a fire extinguishing medium, the release unit can release the fire extinguishing medium or seal the fire extinguishing medium in the storage unit, when a current state of the power battery is an abnormal state, the detection unit can detect the abnormal state and transmit a signal to the release unit, so that the release unit can release the fire extinguishing medium. Through the above arrangement, the safety of the electric two-wheeled vehicle can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to an electric two-wheeled vehicle. BACKGROUND

[0002] The electric two-wheeled vehicle generally comprises a frame, a vehicle body covering, a suspension system, a walking system, a power assembly and a power battery and the like. Among them, the power battery as the energy supply component of the electric two-wheeled vehicle, is easy to cause spontaneous combustion when short-circuiting or collision. If the power battery is self-ignited, the flammable components such as the vehicle body covering made of plastic material will also be burned, thereby reducing the safety of the electric two-wheeled vehicle. SUMMARY

[0003] In order to solve the problems of the prior art, the purpose of the present application is to provide an electric two-wheeled vehicle with high safety.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0005] An electric two-wheeled vehicle, comprising a frame, a vehicle body covering, a walking system, a power assembly and a power battery, the vehicle body covering is connected with the frame; the walking system is at least partially located below the frame; the power assembly is supported by the frame and is in transmission connection with the walking system; the power battery is electrically connected with the power assembly; the vehicle body covering is at least partially made of metal material or flame-retardant composite material, the part of the vehicle body covering made of metal material or flame-retardant composite material and the frame jointly form an accommodating space, the power battery is located in the accommodating space, the electric two-wheeled vehicle comprises a fire extinguishing device at least partially located in the accommodating space, the fire extinguishing device comprises a storage unit, a release unit and a detection unit, the storage unit is internally provided with fire extinguishing medium, the release unit can release the fire extinguishing medium or seal the fire extinguishing medium in the storage unit, when the current state of the power battery is an abnormal state, the detection unit can detect the abnormal state and transmit a signal to the release unit, so that the release unit can release the fire extinguishing medium to extinguish the fire or cool the power battery.

[0006] Further, the electric two-wheeled vehicle further comprises a controller, the controller is electrically connected between the release unit and the detection unit, when the current state of the power battery is an abnormal state, the detection unit can detect the abnormal state and transmit a signal to the controller, and the controller controls the release unit to release the fire extinguishing medium.

[0007] Further, the abnormal state is at least one of the following conditions: the temperature of the power battery exceeds a first preset temperature, the temperature in the accommodating space exceeds a second preset temperature, there is a fire on the power battery, there is smoke in the accommodating space, and the pressure in the accommodating space exceeds a preset pressure.

[0008] Further, the vehicle frame comprises a front frame, a middle frame and a rear frame connected in sequence, the electric two-wheeled vehicle comprises a seat cushion and a seat bucket mounted on the rear frame and a vehicle body cover mounted on the middle frame, the vehicle body cover and the middle frame cooperatively form a footrest support part, the accommodation space comprises a first accommodation area on the rear frame or a second accommodation area on the middle frame; when the power battery and the fire extinguishing device are located in the first accommodation area, the fire extinguishing device is mounted at the first position, the first position comprises below the seat cushion, on the rear frame or in the seat bucket; when the power battery and the fire extinguishing device are located in the second accommodation area, the fire extinguishing device is mounted at the second position, the second position comprises on the middle frame or below the footrest support part.

[0009] Further, the electric two-wheeled vehicle comprises an adapter support, the fire extinguishing device is detachably connected to the first position and / or the second position through the adapter support; a buffer capable of providing a buffering effect on the fire extinguishing device is mounted on the adapter support, and the buffer is at least partially located between the adapter support and the fire extinguishing device.

[0010] Further, the electric two-wheeled vehicle comprises an adapter support, the fire extinguishing device is detachably connected to the first position and / or the second position through the adapter support; a buffer capable of providing a buffering effect on the fire extinguishing device is mounted on the adapter support, and the buffer is at least partially located between the adapter support and the fire extinguishing device.

[0011] Further, the electric two-wheeled vehicle comprises an adapter support, the fire extinguishing device is detachably connected to the first position and / or the second position through the adapter support; a buffer capable of providing a buffering effect on the fire extinguishing device is mounted on the adapter support, and the buffer is at least partially located between the adapter support and the fire extinguishing device.

[0012] Further, the electric two-wheeled vehicle comprises an adapter support, the fire extinguishing device is detachably connected to the first position and / or the second position through the adapter support; a buffer capable of providing a buffering effect on the fire extinguishing device is mounted on the adapter support, and the buffer is at least partially located between the adapter support and the fire extinguishing device.

[0013] Further, when the first cover and the second cover are connected, a channel is formed between the first cover and the second cover, the channel can at least one of the following functions: heat dissipation for the power battery, pressure relief when the power battery is on fire, provide space for vibration between the first cover and the second cover, and discharge smoke generated by the power battery on fire to the outside.

[0014] Further, when the first cover and the second cover are connected, a channel is formed between the first cover and the second cover, the channel can at least one of the following functions: heat dissipation for the power battery, pressure relief when the power battery is on fire, provide space for vibration between the first cover and the second cover, and discharge smoke generated by the power battery on fire to the outside.

[0015] The body cover of the electric two-wheeled vehicle is at least partially made of a metal material or a flame-retardant composite material, the part of the body cover made of the metal material or the flame-retardant composite material cooperates with the frame to form a containing space, the power battery is located in the containing space, when the power battery is in an abnormal state, the flame in the containing space can be isolated from the outside, thereby helping to prevent the spread of fire, and the power battery is extinguished or cooled by the fire extinguishing device, so as to prevent the power battery from self-ignition, thereby improving the safety of the electric two-wheeled vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure schematic diagram of an electric two-wheeled vehicle provided by the embodiment of the present application is provided.

[0017] Figure 2 A partial structure schematic diagram of an electric two-wheeled vehicle provided by the embodiment of the present application is provided.

[0018] Figure 3 A partial structure exploded view of an electric two-wheeled vehicle provided by the embodiment of the present application is provided.

[0019] Figure 4 A structure exploded view of a body cover of an electric two-wheeled vehicle provided by the embodiment of the present application is provided.

[0020] Figure 5 A partial structure schematic diagram of a body cover of an electric two-wheeled vehicle provided by the embodiment of the present application is provided.

[0021] Figure 6 A side view of a body cover of an electric two-wheeled vehicle provided by the embodiment of the present application is provided.

[0022] Figure 7 A cross-sectional view at I-I of the embodiment of the present application is provided. Figure 6

[0023] Figure 8 A structure schematic diagram of a detection unit and a fire extinguishing device of an electric two-wheeled vehicle provided by the embodiment of the present application is provided.

[0024] Figure 9 A structure schematic diagram of a controller, a detection unit, a storage unit and a release unit of an electric two-wheeled vehicle provided by the embodiment of the present application is provided.

[0025] Figure 10 A structure schematic diagram of a seat cushion, a switching support and a fire extinguishing device of an electric two-wheeled vehicle provided by the embodiment of the present application is provided.

[0026] Figure 11 A structure schematic diagram of a seat cushion, a seat bucket, a power battery, a switching support and a fire extinguishing device of an electric two-wheeled vehicle provided by the embodiment of the present application is provided.

[0027] Figure 12 ​Another structural schematic diagram of an electric two-wheeled vehicle provided by an embodiment of the present application.

[0028] Figure 13 Another structural schematic diagram of an electric two-wheeled vehicle provided by an embodiment of the present application.

[0029] Figure 14 Another structural schematic diagram of an electric two-wheeled vehicle provided by an embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to make the personnel in the art better understand the scheme of the present application, the technical scheme in the specific embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application.

[0031] As shown in Figure 1 and Figure 2 , the present application provides an electric two-wheeled vehicle 100, which comprises a frame 11, a vehicle body cover 12, a walking system 13, a suspension system 14, a power assembly 15, a power battery 16 and a saddle 17.

[0032] It should be noted that the electric two-wheeled vehicle 100 can be a pedal type two-wheeled vehicle or a straddle type two-wheeled vehicle, etc., and the present application does not limit the type of the electric two-wheeled vehicle 100. The following describes the electric two-wheeled vehicle 100 as a pedal type two-wheeled vehicle.

[0033] In order to clearly illustrate the technical scheme of the present application, the front, rear, left, right, top and bottom are defined as shown in Figure 2 In the present application, the length direction of the frame 11 refers to the front-rear direction in Figure 2 , the width direction of the frame 11 refers to the left-right direction in Figure 2 , and the height direction of the frame 11 refers to the top-bottom direction in Figure 1 .

[0034] The vehicle frame 11 is used to support the vehicle body cover 12, the walking system 13, the suspension system 14, the power assembly 15, the power battery 16 and the saddle 17. The vehicle body cover 12 is connected to the vehicle frame 11 and covers the vehicle frame 11, so as to protect the internal components of the electric two-wheeled vehicle 100. The walking system 13 is at least partially located below the vehicle frame 11 and is connected to the vehicle frame 11 through the suspension system 14. The power assembly 15 is in driving connection with the walking system 13, so as to transmit power to the walking system 13. The power battery 16 is in electrical connection with the power assembly 15, so as to enable the power battery 16 to supply power to the power assembly 15, so that the power assembly 15 can work normally. The vehicle frame 11 and the vehicle body cover 12 cooperate to form an accommodation space 101, and the power battery 16 is located in the accommodation space 101. The saddle 17 is installed on the vehicle frame 11 and / or the vehicle body cover 12 and is used to support the driver and / or the passenger.

[0035] As shown in Figures 1 to 3 , specifically, the walking system 13 includes a front wheel 131 and a rear wheel 132, and the suspension system 14 includes a front fork tube 141 and a rear swing arm 142. The front wheel 131 is connected to the vehicle frame 11 through the front fork tube 141, and the rear wheel 132 is connected to the vehicle frame 11 through the rear swing arm 142. At least one of the front wheel 131 and the rear wheel 132 is in driving connection with the power assembly 15, so that at least one of the front wheel 131 and the rear wheel 132 serves as a driving wheel of the electric two-wheeled vehicle 100. It should be noted that in the present application, the rear wheel 132 is taken as an example to be described in driving connection with the power assembly 15. The saddle 17 includes a seat pan 171 and a seat cushion 172. The seat pan 171 is installed on the vehicle frame 11, and the seat cushion 172 is at least partially installed on the seat pan 171, so that the seat cushion 172 can support the driver and / or the passenger.

[0036] The vehicle frame 11 includes a front frame 111, a middle frame 112 and a rear frame 113 connected in sequence. The front frame 111 is used to be connected with the front fork tube 141, so that the front wheel 131 can be connected with the front frame 111. The middle frame 112 is located between the front frame 111 and the rear frame 113. The rear frame 113 is used to be connected with the rear swing arm 142, so that the rear wheel 132 can be connected with the rear frame 113. The rear frame 113 is also used to install the seat pan 171.

[0037] As shown in Figure 1 and Figure 4As shown, in one implementation, the power battery 16 is prone to spontaneous combustion in the event of a malfunction or collision, which could cause the electric two-wheeler 100 to spontaneously combust, even endangering personal safety. Therefore, the body panel 12 provided in this application is at least partially made of metal or flame-retardant composite material. The portion of the body panel 12 made of metal or flame-retardant composite material can cooperate with the frame 11 to cover the accommodating space 101, that is, the portion of the body panel 12 made of metal or flame-retardant composite material together with the frame 11 forms the accommodating space 101.

[0038] In this embodiment, since neither the metal material nor the flame-retardant composite material is combustible, the vehicle body panel 12 can isolate the flame within the containment space 101 from the outside when the power battery 16 spontaneously combusts, thus helping to prevent the fire from spreading. Simultaneously, the metal material or flame-retardant composite material has higher structural strength than plastic materials, and therefore can withstand stronger pressure and impact. This ensures that when the power battery 16 spontaneously combusts or even explodes, the vehicle body panel 12 will not crack or shatter, thereby increasing its service life and avoiding safety hazards caused by a cracked vehicle body panel 12, thus improving the safety of the electric two-wheeled vehicle 100.

[0039] It should be noted that flame-retardant composite materials can be composed of at least one of glass fiber, carbon fiber, and basalt fiber as the matrix; flame-retardant composite materials contain flame retardants and can have fire-retardant properties.

[0040] It should be noted that the metal material can be steel or aluminum alloy, etc., and this application does not impose any restrictions. Among them, steel has high structural strength and low cost, thereby improving the structural strength of the body panel 12 and reducing the manufacturing cost of the body panel 12. Aluminum alloy has high structural strength and light weight, thereby achieving weight reduction of the body panel 12 while improving its structural strength.

[0041] like Figures 3 to 5 As shown, specifically, the body panel 12 of this application can be a non-integral part, that is, the body panel 12 of this application may include a seat bucket cover 121, a front cover 122, a body panel 123, etc., with the seat bucket cover 121 located behind the front cover 122, and the body panel 123 located between the seat bucket cover 121 and the front cover 122. Specifically, the seat bucket cover 121 is at least partially disposed around the seat bucket 171 and the rear frame 113; the body panel 123 is at least partially disposed around the center frame 112; and the front cover 122 is at least partially disposed around the front frame 111.

[0042] In this application, the bucket cover 121, the front cover 122, and the body cover 123 may all be made at least partially of metallic materials or flame-retardant composite materials.

[0043] More specifically, the seat bucket cover 121 and the body cover 123, as well as the front cover 122 and the body cover 123, can be detachably connected to each other, and / or the seat bucket cover 121, the front cover 122, and the body cover 123 can also be detachably connected to the frame 11. This configuration facilitates the assembly and disassembly of the seat bucket cover 121, the front cover 122, and the body cover 123, allowing for replacement in the event of damage to any of these components, thereby improving the replaceability and maintainability of the body cover 12.

[0044] In this embodiment, the front cover 122 can be detachably connected to the front frame 111, the body cover 123 can be detachably connected to the middle frame 112, and the seat bucket cover 121 can be detachably connected to the rear frame 113.

[0045] It should be noted that at least one of each of the following components is provided: seat cover 121, front cover 122, and body cover 123.

[0046] At least one seat cover 121 mates with the rear frame 113 to form a mounting space for accommodating the seat bucket 171. At least one body cover 123 mates with the mid-frame 112 to form a footrest 110 for providing support for the rider's feet. At least one front cover 122 mates with the front frame 111 to cover the front fork tube 141 (see reference). Figure 1 Components such as ).

[0047] like Figure 4 and Figure 5 As shown, in one optional implementation, the seat cover 121 includes a first cover 1211 and a second cover 1212, both of which are made of metal or flame-retardant composite material. The first cover 1211 is equipped with an adapter 24, allowing the first cover 1211 to be detachably connected to the second cover 1212 via the adapter 24, and / or allowing the first cover 1211 to be detachably connected to the rear frame 113 via the adapter 24.

[0048] In this application, the first cover 1211 can be substantially perpendicular to the width direction of the frame 11, and the second cover 1212 can be substantially perpendicular to the length direction of the frame 11. It should be noted that this application does not limit the position of the first cover 1211 and the second cover 1212.

[0049] It can be understood that the connection between the body coverings of the electric two-wheeler is usually achieved by clamping, but when the body covering 12 is at least partially made of metal material, it is difficult to achieve the above-mentioned connection by elastic deformation of the metal material itself. The adapter 24 not only enables high-strength connection between the body coverings 12 made of metal material, but also enables better appearance of the connection between the body coverings 12. At the same time, it is also beneficial to reduce the assembly difficulty between the first covering 1211 and the second covering 1212, and to reduce the assembly difficulty between the first covering 1211 and the frame 11.

[0050] Specifically, the adapter 24 is connected to the first covering 1211 by welding, which facilitates the arrangement of the adapter 24 on the first covering 1211 and improves the connection strength between the adapter 24 and the first covering 1211, thereby improving the connection strength between the first covering 1211 and other components.

[0051] It should be noted that the adapter 24 can also be installed on the first covering 1211 by detachable connection (such as screwing, clamping, etc.) or other fixed connection (such as riveting, etc.), and the present application does not limit it.

[0052] In the present embodiment, a first through hole 1211a can be formed on the first covering 1211, and a second through hole 241 can be formed on the adapter 24, the axis of the second through hole 241 substantially coincides with the axis of the first through hole 1211a. The first through hole 1211a and the second through hole 241 can pass through the fasteners such as bolts, so that the fasteners can pass through the first covering 1211, the adapter 24 and connect with other components (such as the rear frame 113, the second covering 1212), thereby realizing the connection between the first covering 1211 and the rear frame 113, and the connection between the first covering 1211 and the second covering 1212. That is, in the present application, the first covering 1211 and the rear frame 113, and the first covering 1211 and the second covering 1212 can be detachably connected by screwing.

[0053] It should be noted that the detachable connection can also be magnetic connection, and the present application does not limit it.

[0054] It should be noted that the first covering 1211 and the rear frame 113, and the first covering 1211 and the second covering 1212 can also be fixedly connected by riveting or welding, so as to improve the connection strength between the first covering 1211 and other components, thereby further improving the compression resistance and impact resistance of the body covering 12, and thereby better preventing the spread of fire.

[0055] Furthermore, since the adapter 24 can be formed into any shape, the first cover 1211 can be adapted to different rear frames 113, and / or the first cover 1211 and the second cover 1212 can be adapted to each other, thereby improving the versatility and replaceability of the first cover 1211.

[0056] As an alternative implementation, the adapter 24 can be a sheet metal part. Since sheet metal parts have better ductility, the adapter 24 can be easily processed into any shape.

[0057] As one implementation, the second cover 1212 can also be equipped with an adapter 24 that is the same as that on the first cover 1211. The way the adapter 24 cooperates with the second cover 1212 is basically the same as the way the adapter 24 cooperates with the first cover 1211. The effect of the adapter 24 on the second cover 1212 is basically the same as the effect of the adapter 24 on the first cover 1211. Therefore, it will not be described in detail here.

[0058] It should be noted that the first cover 1211 and the second cover 1212 can also be directly connected, the first cover 1211 and the frame 11 can also be directly connected, and the second cover 1212 and the frame 11 can also be directly connected. That is, the above connections can also be made without the need for the adapter 24.

[0059] like Figure 6 and Figure 7 As shown above, the first cover 1211 and the second cover 1212 are connected by an adapter 24. Furthermore, when the first cover 1211 and the second cover 1212 are connected via the adapter 24, a gap is formed between them; that is, the first cover 1211 and the second cover 1212 do not directly abut against each other, and a channel 102 is formed between them, which contains the aforementioned gap.

[0060] And / or, the first cover 1211 is connected to the rear frame 113 via an adapter 24. Further, when the first cover 1211 and the rear frame 113 are connected via the adapter 24, a gap is also formed between the first cover 1211 and the rear frame 113, meaning that the first cover 1211 and the rear frame 113 do not directly abut against each other, and the aforementioned channel 102 is formed between the first cover 1211 and the rear frame 113.

[0061] Since the vehicle body cover 12 is at least partially made of metal material or flame-retardant composite material, the heat generated by the components of the electric two-wheeled vehicle 100, such as the power battery 16, etc., covered by the part of the vehicle body cover 12 made of metal material or flame-retardant composite material cannot be dissipated to the outside. The passage 102 can transmit the heat generated by the components, such as the power battery 16, etc., to the outside, so as to improve the heat dissipation effect of the components, such as the power battery 16, etc. In addition, since the vehicle frame 11 is also made of metal material, in the case that the vehicle body cover 12 and the vehicle frame 11 vibrate, the friction between the first cover 1211 and the second cover 1212 and between the first cover 1211 and the rear vehicle frame 113 will be caused due to the vibration, thereby causing abnormal sound or abrasion. In the present application, the passage 102 can provide space for the vibration of the vehicle frame 11 and the first cover 1211, so as to avoid the friction between the first cover 1211 and the second cover 1212 and between the first cover 1211 and the rear vehicle frame 113, thereby avoiding the abnormal sound and abrasion, and further improving the driving comfort of the electric two-wheeled vehicle 100.

[0062] Meanwhile, in the case that the power battery 16 self-ignites, the passage 102 can also function as a pressure relief, so as to avoid the pressure in the accommodating space 101 being too high to cause the explosion or rupture of the vehicle body cover 12, and avoid the safety hazard caused by the explosion of the vehicle body cover 12, thereby improving the safety of the electric two-wheeled vehicle 100.

[0063] Further, in the case that the power battery 16 self-ignites, the smoke, etc. generated by the self-ignition of the power battery 16 can be discharged to the outside through the passage 102, thereby facilitating the pedestrians or vehicles near the electric two-wheeled vehicle 100 to timely avoid, so as to avoid the damage to the personnel, vehicles, etc.

[0064] Further, the edge of the first cover 1211 is formed with a flange structure 25, and correspondingly, the edge of the second cover 1212 is also formed with a flange structure 25. The flange structure 25 on the first cover 1211 and the flange structure 25 on the second cover 1212 form the above-mentioned passage 102, and the two flange structures 25 are substantially parallel, so that the width of the passage 102 is substantially constant. Meanwhile, the flange structure 25 enables the passage 102 to substantially extend along the preset line, thereby avoiding the impurities, such as liquid, etc., from the outside entering the inside of the electric two-wheeled vehicle 100 through the passage 102. The preset line refers to one of the following lines: a line formed by connecting at least one curve and at least one fold line, a line formed by at least one curve, and a line formed by at least one fold line.

[0065] It should be noted that the flange structure 25 substantially extends along the preset line, so that the passage 102 formed by the flange structure 25 also substantially extends along the preset line.

[0066] It should be noted that a flange structure 25 can also be formed on the frame 11, and the aforementioned channel 102 can be formed between the flange structure 25 on the frame 11 and the flange structure 25 on the first cover 1211.

[0067] With the above-described configuration, the channel 102 formed by the flanged structure 25 can block external liquids and other impurities, preventing these impurities from entering the interior of the electric two-wheeler 100 through the channel 102, thereby ensuring the normal operation of the internal components of the electric two-wheeler 100. Simultaneously, the above-described configuration ensures that the channel 102 does not affect the pressure relief effect and does not obstruct the discharge of smoke and other pollutants generated by the spontaneous combustion of the power battery 16 to the outside.

[0068] As one implementation, the front cover 122 and the body cover 123 may also include a first cover 1211 and a second cover 1212, which are the same as the seat bucket cover 121. The connection method of the front cover 122 and the body cover 123 is also the same as the connection method of the seat bucket cover 121, which will not be described in detail here.

[0069] Specifically, the connection method between the front cover 122 and the body cover 123 can be the same as the connection method between the first cover 1211 and the second cover 1212, and the connection method between the seat bucket cover 121 and the body cover 123 can also be the same as the connection method between the first cover 1211 and the second cover 1212, which will not be described in detail here.

[0070] In this embodiment, the connection method between the front cover 122 and the front frame 111 can be the same as the connection method between the first cover 1211 and the rear frame 113, and the connection method between the body cover 123 and the middle frame 112 can be the same as the connection method between the first cover 1211 and the rear frame 113, which will not be described again here.

[0071] like Figure 2 and Figure 3 As shown, as one implementation method, to prevent the power battery 16 from spontaneously combusting and further improve the safety of the electric two-wheeler 100, the electric two-wheeler 100 provided in this application also includes a fire extinguishing device 18, which contains a fire extinguishing medium. The fire extinguishing medium includes, but is not limited to, foam extinguishing agents, dry powder extinguishing agents, carbon dioxide, and clean gas extinguishing agents. The fire extinguishing device 18 can extinguish or cool the power battery 16 through the fire extinguishing medium, thereby improving the safety of the electric two-wheeler 100.

[0072] Specifically, the fire extinguishing device 18 is at least partially located in the accommodation space 101. When the power battery 16 is in an abnormal state, the fire extinguishing device 18 can extinguish or cool the power battery 16 to avoid the power battery 16 from catching fire, thereby improving the safety of the electric two-wheeled vehicle 100.

[0073] As shown in Figure 8 More specifically, the fire extinguishing device 18 includes a storage unit 181, a release unit 182, and a detection unit 183. The detection unit 183 is configured to detect the current state of the power battery 16. The storage unit 181 is configured to store a fire extinguishing medium. The release unit 182 is mounted on the storage unit 181 and is in communication with the internal space of the storage unit 181, so that the release unit 182 can release the fire extinguishing medium or seal the fire extinguishing medium in the storage unit 181. When the current state of the power battery 16 is an abnormal state, the detection unit 183 detects the abnormal state and transmits a signal to the release unit 182, and the release unit 182 releases the fire extinguishing medium to extinguish or cool the power battery 16. The detection unit 183 can be a temperature sensor, a spark sensor, a pressure sensor, a visual sensor, etc., which is not limited in the present application.

[0074] It should be noted that, as shown in Figure 9 As another implementation, the electric two-wheeled vehicle 100 further includes a controller 19 electrically connected to the detection unit 183 and the release unit 182. When the current state of the power battery 16 is an abnormal state, the detection unit 183 detects the abnormal state and transmits a signal to the controller 19, and the controller 19 controls the release unit 182 to release the fire extinguishing medium to extinguish or cool the power battery 16. The controller 19 can be a body control module (BCM), a microcontroller unit (MCU), a battery management system (BMS), etc., which is not limited in the present application.

[0075] The abnormal state refers to at least one of the following conditions: the temperature of the power battery 16 exceeds a first preset temperature, the temperature in the accommodation space 101 exceeds a second preset temperature, a fire appears on the power battery 16, smoke appears in the accommodation space 101, and the pressure in the accommodation space 101 exceeds a preset pressure. The first preset temperature, the second preset temperature, and the preset pressure can be adjusted according to actual conditions, and the first preset temperature and the second preset temperature can be the same or different, which is not limited in the present application.

[0076] In the embodiment, the vehicle body cover 12 is made of metal material or fire-retardant composite material at least partially, so that when the power battery 16 is self-ignited, the vehicle body cover 12 can isolate the fire in the accommodation space 101 from the outside, thereby helping to prevent the spread of fire. Meanwhile, when the fire extinguishing device 18 is working, the vehicle body cover 12 of the application can cooperate with the fire extinguishing device 18 to confine the fire in the accommodation space 101, thereby helping the fire extinguishing device 18 to extinguish the fire or cool down.

[0077] As shown in Figure 2 and Figure 3 , as an implementation manner, the electric two-wheeled vehicle 100 includes a first accommodating area 103 and a second accommodating area 104. The first accommodating area 103 is located on the rear frame 113, and specifically, the first accommodating area 103 is located below the seat cushion 172. The second accommodating area 104 is located on the middle frame 112, and specifically, the second accommodating area 104 is located below the foot support part 110 formed by the vehicle body cover 123 (refer to Figure 4 ) and the middle frame 112. In the embodiment, the accommodation space 101 can be the first accommodating area 103 or the second accommodating area 104, which is not limited in the application.

[0078] To further illustrate the technical solution of the application, the application is described taking the accommodation space 101 as the first accommodating area 103 as an example.

[0079] As an optional implementation manner, the power battery 16 and the fire extinguishing device 18 are both located in the first accommodating area 103.

[0080] Specifically, the power battery 16 is installed on the rear frame 113 and located below the seat cushion 172, and the fire extinguishing device 18 is installed on the rear frame 113 and located below the seat cushion 172.

[0081] The fire extinguishing device 18 is detachably connected with the rear frame 113. The detachable connection between the fire extinguishing device 18 and the rear frame 113 can be screw, buckle, clamp, etc. When the fire extinguishing device 18 is invalid or damaged, the above-mentioned arrangement can realize the replacement of the fire extinguishing device 18, thereby improving the working reliability of the fire extinguishing device 18.

[0082] More specifically, the adapter bracket 22 is mounted on the rear frame 113, and the fire extinguishing device 18 is mounted on and detachably connected to the adapter bracket 22. Since the adapter bracket 22 can be made into any shape according to actual needs, the mounting angle, mounting position, and mounting distance of the fire extinguishing device 18 from the power battery 16 can be adjusted, so that the position of the fire extinguishing device 18 can be adjusted according to the actual mounting position of the power battery 16, thereby facilitating the fire extinguishing device 18 to timely extinguish the fire or cool the power battery 16, and further facilitating the improvement of the working efficiency and stability of the fire extinguishing device 18. It should be noted that the position adjustment of the fire extinguishing device 18 can be the adjustment of the position of the fire extinguishing device 18 for releasing the fire extinguishing medium.

[0083] In the embodiment, the adapter bracket 22 is detachably connected to the rear frame 113, so that the fire extinguishing device 18 can be simultaneously detached or mounted from the rear frame 113 with the adapter bracket 22. It should be noted that the adapter bracket 22 can be a sheet metal part, thereby facilitating the reduction of the processing difficulty of the adapter bracket 22.

[0084] As an implementation manner, the adapter bracket 22 can be provided with a buffer 23, and the buffer 23 is at least partially located between the adapter bracket 22 and the fire extinguishing device 18, so that when the fire extinguishing device 18 is mounted on the adapter bracket 22, the buffer 23 can provide a buffering effect for the fire extinguishing device 18, and further when the electric two-wheeled vehicle 100 vibrates, the buffer 23 can absorb the impact force transmitted to the fire extinguishing device 18 to avoid damage to the fire extinguishing device 18. Among them, the electric two-wheeled vehicle 100 will vibrate in the process of driving, in the case of collision, etc.

[0085] Specifically, the buffer 23 can be made of a material such as rubber that has elasticity, so that the buffer 23 can achieve the buffering of the fire extinguishing device 18.

[0086] In some embodiments, the buffer 23 can be a rubber sleeve that is sleeved on the fire extinguishing device 18.

[0087] It should be noted that since the power battery 16 will burn rapidly once it burns, the number of fire extinguishing devices 18 of the present application can be multiple, so that multiple positions of the power battery 16 can be extinguished by multiple fire extinguishing devices 18, and further in the case of power battery 16 burning, the fire extinguishing efficiency of the power battery 16 can be improved to reduce the loss degree of the electric two-wheeled vehicle 100.

[0088] As an optional implementation manner, the multiple fire extinguishing devices 18 can be arranged around the power battery 16.

[0089] In some embodiments, the fire extinguishing device 18 includes a fire extinguishing pipeline 184 (refer toFigure 2 The fire extinguishing pipe 184 is in communication with the storage unit 181 and also in communication with the release unit 182, so that the fire extinguishing medium in the storage unit 181 is released from the release unit 182 through the fire extinguishing pipe 184. In the embodiment, the fire extinguishing pipe 184 can be arranged around the power battery 16, and the release unit 182 is provided with a plurality of release units 182 which are uniformly arranged on the fire extinguishing pipe 184. Through the above arrangement, the plurality of release units 182 can be arranged around the power battery 16, so that the plurality of release units 182 can extinguish fire or cool in each direction of the power battery 16.

[0090] As another optional implementation, when the power battery 16 is working, the temperature at the electrode of the power battery 16 is the highest, i.e. the temperature at the position where the power battery 16 is electrically connected with the external circuit is the highest. Therefore, in the present application, at least two fire extinguishing devices 18 can be located in the first accommodating area 103 close to the electrode of the power battery 16, so that the extinguishing efficiency at the electrode of the power battery 16 can be improved by increasing the number of fire extinguishing devices 18, so as to further improve the safety of the electric two-wheeled vehicle 100.

[0091] It should be noted that the fire extinguishing device 18 of the present application can also be arranged in the first accommodating area 103 close to other high-temperature components in the power battery 16, and the present application is not limited thereto.

[0092] As shown in Figure 3 and Figure 8 , as an implementation, the detection unit 183 is at least partially located in the first accommodating area 103 and is mounted on the rear frame 113. Figure 3 and Figure 9 , in the presence of the controller 19, the controller 19 can be mounted at any position of the vehicle frame 11, and the present application is not limited thereto.

[0093] In the embodiment, the electrical connection between the release unit 182 and the detection unit 183 is described. The release unit 182 can be a valve body (such as an electromagnetic valve), so that the opening or closing of the valve body can be controlled to release or store the fire extinguishing medium. Alternatively, the release unit 182 can be a nozzle, so that the opening or closing of the nozzle can be controlled to release or store the fire extinguishing medium. The opening direction of the valve body and the direction of the nozzle are both towards the power battery 16. It should be noted that the present application does not limit the specific structure of the release unit 182, and only requires that the release unit 182 can release the fire extinguishing medium in the storage unit 181.

[0094] It should be noted that when the release unit 182 is electrically connected with the controller 19, and the detection unit 183 is electrically connected with the controller 19, the controller 19 can control the opening or closing of the release unit 182.

[0095] As an implementation manner, the storage unit 181 can be made of a high-strength lightweight material (such as an aluminum alloy) to form a high-pressure-resistant container, so as to reduce the weight of the storage unit 181 and improve the structural strength of the storage unit 181, thereby avoiding damage to the storage unit 181. The storage unit 181 can be equipped with safety devices such as safety valves and pressure gauges to improve the safety of the storage unit 181.

[0096] It should be noted that the release unit 182 can also be located inside the storage unit 181. For example, the release unit 182 can also be a component (such as a bursting disc) that can cause the storage unit 181 to break, so that when the power battery 16 is in an abnormal state, the release unit 182 can burst to cause the storage unit 181 to break, thereby enabling the fire extinguishing medium in the storage unit 181 to be released.

[0097] It should be noted that the power battery 16 and the fire extinguishing device 18 can be installed at different positions of the electric two-wheeled vehicle 100 according to actual needs.

[0098] For example, as shown in FIG. 17, the fire extinguishing device 18 can be installed on the seat cushion 172 and located below the seat cushion 172. Specifically, the fire extinguishing device 18 is detachably connected with the seat cushion 172. The detachable connection manner of the fire extinguishing device 18 with the rear frame 113 is defined as a first preset connection manner, and the detachable connection manner of the fire extinguishing device 18 with the seat cushion 172 is defined as a second preset connection manner, which is basically the same as the first preset connection manner. Figure 10

[0099] More specifically, the same adapter bracket 22 as the rear frame 113 can be installed on the seat cushion 172, and the adapter bracket 22 is detachably connected with the seat cushion 172.

[0100] As shown in FIG. 17, as another optional implementation manner, when the power battery 16 and the fire extinguishing device 18 are located below the seat cushion 172, both the power battery 16 and the fire extinguishing device 18 can be located in the seat pan 171, and the seat pan 171 is located in the first accommodation area 103. At this time, the fire extinguishing device 18 can be connected with the seat pan 171. Specifically, the fire extinguishing device 18 is detachably connected with the seat pan 171, and the detachable connection manner of the fire extinguishing device 18 with the seat pan 171 is defined as a third preset connection manner, which is basically the same as the first preset connection manner. Figure 11

[0101] ​​In the embodiment, the seat tub 171 can be provided with the same adapter bracket 22 as the rear frame 113, and the adapter bracket 22 is detachably connected to the seat tub 171.

[0102] As shown in Figure 2 , as an implementation manner, the power battery 16 and the fire extinguishing device 18 can also be located in the second containing area 104. At this time, the power battery 16 can be installed on the middle frame 112 and located below the pedal support part 110, and the fire extinguishing device 18 can be installed on the middle frame 112 and located below the pedal support part 110.

[0103] Specifically, the fire extinguishing device 18 is detachably connected to the middle frame 112. The detachable connection manner of the fire extinguishing device 18 and the middle frame 112 is defined as a fourth preset connection manner, which is basically the same as the first preset connection manner.

[0104] In the embodiment, the middle frame 112 can be provided with the same adapter bracket 22 as the rear frame 113, and the adapter bracket 22 is detachably connected to the middle frame 112.

[0105] It should be noted that the fire extinguishing device 18 can also be installed on the pedal support part 110. Among them, the fire extinguishing device 18 is detachably connected to the pedal support part 110. The pedal support part 110 can be provided with the same adapter bracket 22 as the rear frame 113, and the adapter bracket 22 is detachably connected to the pedal support part 110.

[0106] As shown in Figure 12 and Figure 13 , as another optional implementation manner, when the electric two-wheeled vehicle 100 is a straddle type two-wheeled vehicle, the middle frame 112 forms a second containing area 104, the power battery 16 can be installed on the middle frame 112, and the fire extinguishing device 18 can be installed on the middle frame 112; or, as shown in Figure 12 and Figure 14 , the rear frame 113 forms a first containing area 103, the power battery 16 can also be installed on the rear frame 113 and located below the seat cushion 172, and the fire extinguishing device 18 can also be installed on the rear frame 113 or the seat cushion 172, and the fire extinguishing device 18 is located below the seat cushion 172.

[0107] Among them, when the electric two-wheeled vehicle 100 is a straddle type two-wheeled vehicle, the middle frame 112 and the fire extinguishing device 18, the rear frame 113 and the fire extinguishing device 18, and the seat cushion 172 and the fire extinguishing device 18 are all detachably connected. Further, the middle frame 112, the rear frame 113, and the seat cushion 172 can all be provided with an adapter bracket 22, and the adapter bracket 22 is detachably connected to the middle frame 112, the rear frame 113, and the seat cushion 172.

[0108] In summary, in the present application, the arrangement position of the power battery 16 and the fire extinguishing device 18 is not limited, and only needs to be in the same space, so that the fire extinguishing device 18 can extinguish or cool the power battery 16 in time when the power battery 16 is in an abnormal state, to avoid the power battery 16 from self-ignition, thereby improving the safety of the electric two-wheeled vehicle 100.

[0109] Secondly, in the present application, the arrangement position of the detection unit 183 is not limited, and only needs to be able to detect the temperature of the accommodation space 101 or the power battery 16.

[0110] It should be noted that the fire extinguishing device 18 can also be arranged in other areas that need to be cooled or extinguished. For example, the fire extinguishing device 18 can be installed on the front cover 122, so that the electrical devices (such as wires, etc.) protected by the front cover 122 can be cooled or extinguished by the fire extinguishing device 18, thereby further improving the safety of the electric two-wheeled vehicle 100.

[0111] In some embodiments, the storage unit 181 can be located at any position of the electric two-wheeled vehicle 100, and only needs to be close to the power battery 16.

[0112] For example, when the power battery 16 is located in the first accommodation area 103, the storage unit 181 can be installed on the front cover 122, and the release unit 182 can be located in the first accommodation area 103.

[0113] For another example, when the power battery 16 is located in the second accommodation area 104, the storage unit 181 can be installed in the first accommodation area 103, and the release unit 182 can be located in the second accommodation area 104. Alternatively, when the power battery 16 is located in the second accommodation area 104, the storage unit 181 can be installed on the front cover 122, and the release unit 182 can be located in the second accommodation area 104.

[0114] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall fall within the protection scope of the appended claims of the present application.

Claims

1. An electric two-wheeled vehicle, comprising: a frame; a body cover connected with the frame; a walking system located at least partially below the frame; a power assembly in driving connection with the walking system; a power battery in electrical connection with the power assembly; characterized in that: the body cover is at least partially made of a metal material or a flame-retardant composite material, the part of the body cover made of the metal material or the flame-retardant composite material forms a containing space in cooperation with the frame, the power battery is located in the containing space, the electric two-wheeled vehicle comprises a fire extinguishing device located at least partially in the containing space, the fire extinguishing device comprises a storage unit, a release unit and a detection unit, the storage unit is internally provided with a fire extinguishing medium, the release unit can release the fire extinguishing medium or seal the fire extinguishing medium in the storage unit, when a current state of the power battery is an abnormal state, the detection unit can detect the abnormal state and transmit a signal to the release unit, so that the release unit can release the fire extinguishing medium to extinguish or cool the power battery; the body cover comprises a first cover and a second cover made of the metal material or the flame-retardant composite material, when the first cover is connected with the second cover, a channel is formed between the first cover and the second cover, the channel is in communication with the containing space; the channel can realize the following functions: pressure relief when the power battery is self-ignited, and providing space for vibration between the first cover and the second cover.

2. The electric two-wheeled vehicle according to claim 1, characterized in that: the electric two-wheeled vehicle further comprises a controller, the controller is electrically connected between the release unit and the detection unit, when the current state of the power battery is the abnormal state, the detection unit can detect the abnormal state and transmit a signal to the controller, and the controller controls the release unit to release the fire extinguishing medium.

3. The electric two-wheeled vehicle according to claim 1, characterized in that: the abnormal state is at least one of the following conditions: the temperature of the power battery exceeds a first preset temperature, the temperature in the containing space exceeds a second preset temperature, a fire light appears on the power battery, smoke appears in the containing space, and the pressure in the containing space exceeds a preset pressure.

4. The electric two-wheeled vehicle according to claim 1, characterized in that: the frame comprises a front frame, a middle frame and a rear frame connected in sequence, the electric two-wheeled vehicle comprises a seat cushion and a seat pan installed on the rear frame, and a body cover installed on the middle frame, the body cover and the middle frame cooperatively form a foot support part, the containing space comprises a first containing area located on the rear frame or a second containing area located on the middle frame; when the power battery and the fire extinguishing device are located in the first containing area, the fire extinguishing device is installed at a first position, the first position comprises below the seat cushion, on the rear frame or in the seat pan. When the power battery and the fire extinguishing device are located in the second accommodating area, the fire extinguishing device is installed at a second position, and the second position includes the middle frame or below the foot support.

5. The electric two-wheeled vehicle according to claim 4, characterized in that, the electric two-wheeled vehicle comprises an adapter support, the fire extinguishing device is detachably connected to the first position and / or the second position through the adapter support, a buffer capable of providing a buffering effect on the fire extinguishing device is installed on the adapter support, and the buffer is at least partially located between the adapter support and the fire extinguishing device.

6. The electric two-wheeled vehicle according to claim 1, characterized in that, a plurality of fire extinguishing devices are provided, and the plurality of fire extinguishing devices are arranged around the power battery.

7. The electric two-wheeled vehicle according to claim 1, characterized in that, the fire extinguishing device comprises a fire extinguishing pipeline, the fire extinguishing pipeline communicates the release unit and the storage unit, the fire extinguishing pipeline is arranged around the power battery, and a plurality of release units are provided, and the plurality of release units are uniformly arranged on the fire extinguishing pipeline.

8. The electric two-wheeled vehicle according to claim 1, characterized in that, the electric two-wheeled vehicle comprises an adapter, the adapter is installed on the first cover and the second cover, the first cover and the second cover are detachably connected through the adapter, and the first cover and the second cover are detachably connected with the frame through the adapter.

9. The electric two-wheeled vehicle according to claim 1, characterized in that, the channel can further at least one of the following functions: heat dissipation for the power battery, and smoke generated by the power battery is discharged to the outside.

10. The electric two-wheeled vehicle according to claim 1, characterized in that, when the first cover and the second cover are connected with the frame respectively, a channel is formed between the first cover and the frame and between the second cover and the frame, and the channel can at least one of the following functions: heat dissipation for the power battery, pressure relief when the power battery is self-ignited, providing space for vibration between the first cover and the frame, providing space for vibration between the first cover and the frame, and discharging smoke generated by the power battery to the outside.

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