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, wherein 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 comprises a first cover and a second cover, and the first cover and the second cover are both made of metal material or flame-retardant composite material; the electric two-wheeled vehicle comprises an adapter, which 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 respectively detachably connected with the frame through the adapter. Through the above arrangement, the assembly difficulty between the first cover and the second cover can be reduced, and the assembly difficulty between the first cover and the frame and between the second cover and the frame can also be reduced.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to an electric two-wheeled vehicle. Background Technology

[0002] Electric two-wheelers generally consist of components such as a frame, body panels, suspension system, running gear, powertrain, and battery. Among these, the battery, as the power source, is prone to spontaneous combustion in the event of a short circuit or collision. If the battery ignites, flammable components such as the plastic body panels will also burn, reducing the safety of the electric two-wheeler. However, if other materials are used, the elastic deformation of plastic cannot be utilized for assembly, increasing the difficulty of assembling the body panels. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this application is to provide an electric two-wheeled vehicle with high safety and low assembly difficulty of body panels.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] An electric two-wheeled vehicle includes a frame, body panels, a running system, a powertrain, and a power battery. The body panels are connected to the frame. The running system is at least partially located below the frame. The powertrain is supported by the frame and is connected to the running system via transmission. The power battery is electrically connected to the powertrain. The body panels include a first panel and a second panel, both made of metal or flame-retardant composite material. The electric two-wheeled vehicle includes an adapter mounted on the first and second panels. The first and second panels are detachably connected via the adapter, and both the first and second panels are detachably connected to the frame via the adapter.

[0006] Furthermore, the adapter is fixedly connected to the first cover and the second cover; the frame includes a front frame, a middle frame and a rear frame connected in sequence, and the body cover includes a seat bucket cover that is at least partially disposed around the rear frame, a front cover that is at least partially disposed around the front frame and a body cover that is at least partially disposed around the front frame, and the seat bucket cover, the front cover and the body cover are all at least partially made of metal or flame-retardant composite material and include the first cover and the second cover.

[0007] Furthermore, the first cover has a first through hole, and the adapter has a second through hole. The axis of the second through hole is substantially coincident with the axis of the first through hole. The electric two-wheeled vehicle includes a fastener that passes through the first and second through holes and is connected to the second cover or the frame.

[0008] Furthermore, the way the second cover and the adapter are fitted together is basically the same as the way the first cover and the adapter are fitted together.

[0009] Furthermore, when the first cover is connected to the second cover, a channel is formed between the first cover and the second cover, and the channel can perform at least one of the following functions: heat dissipation for the power battery, pressure relief in the event of spontaneous combustion of the power battery, providing space for vibration between the first cover and the second cover, and exhausting the smoke generated by the spontaneous combustion of the power battery to the outside.

[0010] Furthermore, both the edges of the first cover and the second cover have flanged structures. The flanged structures on the first cover and the second cover form a channel. The flanged structures cause the channel to extend along a basic preset line direction. The preset line is one of the following: a line formed by connecting at least one curve and at least one broken line, a line formed by at least one curve, or a line formed by at least one broken line.

[0011] Furthermore, when the first cover and the second cover are connected to the vehicle frame respectively, channels are formed between the first cover and the vehicle frame and between the second cover and the vehicle frame. The channels can perform at least one of the following functions: heat dissipation for the power battery, pressure relief in the event of spontaneous combustion of the power battery, providing space for vibration between the first cover and the vehicle frame, and exhausting the smoke generated by the spontaneous combustion of the power battery to the outside.

[0012] Furthermore, the edges of the first cover, the second cover, and the frame are formed with flange structures. The flange structures on the first cover and the frame form a channel, and the flange structures on the second cover and the frame form a channel. The flange structures cause the channel to extend along a basic preset line direction. The preset line is one of the following lines: a line formed by connecting at least one curve and at least one broken line, a line formed by at least one curve, or a line formed by at least one broken line.

[0013] Furthermore, the flange structure extends basically along the direction of the preset lines.

[0014] Furthermore, the flame-retardant composite material is composed of at least one of glass fiber, carbon fiber, and basalt fiber as the matrix; the flame-retardant composite material contains a flame retardant; and the metal material is steel or aluminum alloy.

[0015] The aforementioned electric two-wheeled vehicle can use a first and second cover made of metal or flame-retardant composite materials to isolate the flames within the containment space from the outside world in the event of spontaneous combustion of the power battery, thereby helping to prevent the fire from spreading and improving the safety of the electric two-wheeled vehicle. At the same time, the first and second covers are connected by an adapter, and the first and second covers are connected to the frame respectively by the adapter, thereby reducing the assembly difficulty between the first and second covers, as well as between the first cover and the frame, and between the second cover and the frame. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an electric two-wheeled vehicle provided in an embodiment of this application.

[0017] Figure 2 This is a partial structural schematic diagram of an electric two-wheeler provided in an embodiment of this application.

[0018] Figure 3 An exploded view of a portion of the structure of the electric two-wheeler provided in an embodiment of this application.

[0019] Figure 4 An exploded view of the structure of the body panel of the electric two-wheeled vehicle provided in the embodiments of this application.

[0020] Figure 5 This is a partial structural schematic diagram of the body panel of an electric two-wheeled vehicle provided in an embodiment of this application.

[0021] Figure 6 A side view of the body panel of an electric two-wheeled vehicle provided in an embodiment of this application.

[0022] Figure 7 Examples of this application Figure 6 Sectional view at point II.

[0023] Figure 8 This is a schematic diagram of the detection unit and fire extinguishing device for an electric two-wheeled vehicle provided in an embodiment of this application.

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

[0025] Figure 10 This is a schematic diagram of the structure of the seat, adapter bracket, and fire extinguishing device of the electric two-wheeled vehicle provided in the embodiments of this application.

[0026] Figure 11 This is a schematic diagram of the structure of the seat, seat bucket, power battery, adapter bracket, and fire extinguishing device of the electric two-wheeled vehicle provided in the embodiments of this application.

[0027] Figure 12 This is a schematic diagram of another electric two-wheeled vehicle provided in an embodiment of this application.

[0028] Figure 13 This is a partial structural schematic diagram of another electric two-wheeled vehicle provided in an embodiment of this application.

[0029] Figure 14 An exploded view of a partial structure of another electric two-wheeled vehicle provided in an embodiment of this application. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in specific embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0031] like Figure 1 and Figure 2 As shown, this application provides an electric two-wheeled vehicle 100, which includes a frame 11, a body panel 12, a running system 13, a suspension system 14, a powertrain 15, a power battery 16, and a saddle 17.

[0032] It should be noted that the electric two-wheeler 100 can be a pedal-type two-wheeler or a straddle-type two-wheeler, etc., and this application does not limit the type of electric two-wheeler 100. The following description uses a pedal-type two-wheeler as an example.

[0033] To clearly illustrate the technical solution of this application, the following are also defined: Figure 2 The directions shown are front, rear, left, right, top, and bottom. In this application, the length direction of the frame 11 refers to... Figure 2 In the fore-and-aft direction, the width direction of the frame 11 refers to... Figure 2 The left and right directions in the middle, and the height direction of frame 11 refers to Figure 1 The up and down directions in the middle.

[0034] The frame 11 serves as the basic framework of the electric two-wheeler 100, supporting the body panel 12, the running system 13, the suspension system 14, the powertrain 15, the power battery 16, and the seat 17. The body panel 12 covers and connects to the frame 11, protecting the internal components of the electric two-wheeler 100. The running system 13 is at least partially located below the frame 11 and connected to it via the suspension system 14. The powertrain 15 is drive-connected to the running system 13, transmitting power to it. The power battery 16 is electrically connected to the powertrain 15, enabling it to power the powertrain 15 for normal operation. The frame 11 and the body panel 12 cooperate to form a receiving space 101 within which the power battery 16 is located. The seat 17 is mounted on the frame 11 and / or the body panel 12, supporting the driver and / or passenger.

[0035] like Figures 1 to 3 As shown, specifically, the running system 13 includes a front wheel 131 and a rear wheel 132, and the suspension system 14 includes a fork tube 141 and a swingarm 142. The front wheel 131 is connected to the frame 11 via the fork tube 141, and the rear wheel 132 is connected to the frame 11 via the swingarm 142. At least one of the front wheel 131 and the rear wheel 132 is driven by the powertrain 15, such that at least one of the front wheel 131 and the rear wheel 132 serves as the drive wheel of the electric two-wheeled vehicle 100. It should be noted that in this application, the drive connection of the rear wheel 132 to the powertrain 15 is described as an example. The saddle 17 includes a seat bucket 171 and a seat cushion 172. The seat bucket 171 is mounted on the frame 11, and the seat cushion 172 is at least partially mounted on the seat bucket 171, such that the seat cushion 172 can support the driver and / or passenger.

[0036] The frame 11 includes a front frame 111, a mid-frame 112, and a rear frame 113 connected in sequence. The front frame 111 is connected to the front fork tube 141, allowing the front wheel 131 to be connected to the front frame 111. The mid-frame 112 is located between the front frame 111 and the rear frame 113. The rear frame 113 is connected to the rear swingarm 142, allowing the rear wheel 132 to be connected to the rear frame 113. The rear frame 113 also mounts the seat bucket 171.

[0037] like 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 support 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 ) and other components.

[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] Understandably, most of the body panels of electric two-wheeled vehicles are usually fixed to each other by snap-fit. However, when the body panels 12 are at least partially made of metal, due to the characteristics of metal, it is difficult for the body panels 12 to achieve the above-mentioned connection through their own elastic deformation. The adapter 24 can not only achieve a high-strength connection between the metal body panels 12, but also improve the appearance of the connection between the body panels 12 by making the adapter 24 built-in. At the same time, it can also reduce the assembly difficulty between the first cover 1211 and the second cover 1212, and reduce the assembly difficulty between the first cover 1211 and the frame 11.

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

[0051] It should be noted that the adapter 24 can also be installed on the first cover 1211 by means of detachable connection (such as screw connection, snap connection, etc.) or other fixed connection (such as riveting, etc.), and this application does not impose any restrictions.

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

[0053] It should be noted that the detachable connection method can also be magnetic connection, and this application does not impose any restrictions.

[0054] It should be noted that the first cover 1211 and the rear frame 113, as well as the first cover 1211 and the second cover 1212, can also be fixedly connected by riveting or welding, thereby improving the connection strength between the first cover 1211 and other components, thereby further improving the pressure resistance and impact resistance of the body cover 12, and thus better preventing the fire from spreading.

[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 body panel 12 is at least partially made of metal or flame-retardant composite material, the heat generated by components of the electric two-wheeler 100 (such as the power battery 16) covered by the metal or flame-retardant composite material of the body panel 12 cannot be dissipated to the outside. The aforementioned channel 102 can transfer the heat generated by components such as the power battery 16 to the outside, thereby improving the heat dissipation effect of the power battery 16 and other components. Furthermore, since the frame 11 is also made of metal, when the body panel 12 and the frame 11 vibrate, friction will occur between the first cover 1211 and the second cover 1212, and between the first cover 1211 and the rear frame 113, resulting in abnormal noise or wear. In this application, the channel 102 can provide space for the vibration of the frame 11 and the first cover 1211, thereby avoiding friction between the first cover 1211 and the second cover 1212, and between the first cover 1211 and the rear frame 113, so as to avoid abnormal noise and wear, and thus improve the driving comfort of the electric two-wheeler 100.

[0062] Meanwhile, when the power battery 16 spontaneously combusts, the channel 102 can also relieve pressure, thereby preventing the body panel 12 from exploding or cracking due to excessive pressure in the containment space 101, and avoiding the safety hazards caused by the explosion of the body panel 12, so as to improve the safety of the electric two-wheeler 100.

[0063] Furthermore, when the power battery 16 spontaneously combusts, the smoke and other substances generated by the spontaneous combustion of the power battery 16 can be discharged to the outside through the channel 102, which helps pedestrians or vehicles near the electric two-wheeler 100 to avoid the fire in time and prevent injury to people, vehicles, etc.

[0064] Furthermore, 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 structures 25 on the first cover 1211 and the flange structures 25 on the second cover 1212 form the aforementioned channel 102, and the two flange structures 25 are arranged substantially parallel to each other, thereby keeping the width of the channel 102 substantially constant. At the same time, the flange structures 25 allow the channel 102 to extend substantially along the direction of the preset line, thereby preventing external liquids and other impurities from entering the interior of the electric two-wheeled vehicle 100 through the channel 102. The preset line refers to one of the following types of lines: a line formed by connecting at least one curve and at least one broken line, a line formed by at least one curve, or a line formed by at least one broken line.

[0065] It should be noted that the flange structure 25 extends basically along the direction of the preset line, so that the channel 102 formed by the flange structure 25 also extends basically along the direction of 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 within the accommodating 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 prevent spontaneous combustion, thereby improving the safety of the electric two-wheeler 100.

[0073] like Figure 8 As shown, 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 used to detect the current state of the power battery 16. The storage unit 181 contains a fire extinguishing medium. The release unit 182 is installed on the storage unit 181 and communicates 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 inside the storage unit 181. When the current state of the power battery 16 is abnormal, the detection unit 183 detects the abnormal state and transmits a signal to the release unit 182. 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 vision sensor, etc., and this application does not impose any limitations.

[0074] It should be noted that, as Figure 9 As shown, in another implementation, the electric two-wheeler 100 also includes a controller 19. The controller 19 is electrically connected to the detection unit 183 and also electrically connected to the release unit 182. When the current state of the power battery 16 is abnormal, the detection unit 183 detects the abnormal state and transmits a signal to the controller 19. 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., and this application does not impose any limitations.

[0075] The abnormal state refers to at least one of the following: the temperature of the power battery 16 exceeds the first preset temperature, the temperature inside the containment space 101 exceeds the second preset temperature, a flame appears on the power battery 16, smoke appears inside the containment space 101, or the pressure inside the containment space 101 exceeds the preset pressure. The first preset temperature, the second preset temperature, and the preset pressure can be adjusted according to the actual situation, and the first preset temperature and the second preset temperature can be the same or different. This application does not impose any restrictions.

[0076] In this embodiment, since the vehicle body panel 12 is at least partially made of metallic or flame-retardant composite materials, it can isolate the flame within the containment space 101 from the outside environment when the power battery 16 spontaneously combusts, thereby helping to prevent the fire from spreading. Simultaneously, when the fire extinguishing device 18 is operating, the vehicle body panel 12 can also cooperate with the fire extinguishing device 18 to confine the flame within the containment space 101, facilitating the fire extinguishing device 18 in extinguishing or cooling the fire.

[0077] like Figure 2 and Figure 3 As shown, in one implementation, the electric two-wheeler 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, specifically below the seat cushion 172. The second accommodating area 104 is located on the middle frame 112, specifically on the body cover 123 (see reference). Figure 4 Below the footrest support 110 formed by the center frame 112. In this embodiment, the accommodating space 101 may be a first accommodating area 103 or a second accommodating area 104, and this application does not impose any restrictions.

[0078] To further illustrate the technical solution of this application, this application will describe it using the example of the accommodating space 101 being the first accommodating region 103.

[0079] As an optional implementation, both the power battery 16 and the fire extinguishing device 18 are located within 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 to the rear frame 113. The detachable connection between the fire extinguishing device 18 and the rear frame 113 can be achieved through bolts, clips, clamps, etc. In the event of failure or damage to the fire extinguishing device 18, the above-mentioned design allows for its replacement, thereby improving the operational reliability of the fire extinguishing device 18.

[0082] More specifically, an adapter bracket 22 is installed 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 installation angle, installation position, and installation distance of the fire extinguishing device 18 from the power battery 16 can be adjusted. This allows the position of the fire extinguishing device 18 to be adjusted according to the actual installation position of the power battery 16, facilitating timely fire extinguishing or cooling of the power battery 16, thereby improving 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 an adjustment of the position on the fire extinguishing device 18 used to release the extinguishing medium.

[0083] In this embodiment, the adapter bracket 22 is detachably connected to the rear frame 113, thereby allowing the fire extinguishing device 18 to be detached from or installed on the rear frame 113 simultaneously with the adapter bracket 22. It should be noted that the adapter bracket 22 can be a sheet metal part, which helps to reduce the processing difficulty of the adapter bracket 22.

[0084] As one implementation, a buffer 23 can be installed on the adapter bracket 22. The buffer 23 is at least partially located between the adapter bracket 22 and the fire extinguishing device 18. When the fire extinguishing device 18 is installed on the adapter bracket 22, the buffer 23 can provide cushioning for the fire extinguishing device 18. Furthermore, when the electric two-wheeled vehicle 100 vibrates, the buffer 23 can absorb the impact force transmitted to the fire extinguishing device 18, thus preventing damage to the fire extinguishing device 18. The electric two-wheeled vehicle 100 will vibrate during operation and in the event of a collision.

[0085] Specifically, the buffer 23 can be made of elastic materials such as rubber, so that the buffer 23 can buffer the fire extinguishing device 18.

[0086] In some embodiments, the buffer 23 may be a rubber sleeve fitted onto the fire extinguishing device 18.

[0087] It should be noted that since the power battery 16 is highly flammable once it spontaneously combusts, the number of fire extinguishing devices 18 in this application can be multiple. This allows multiple fire extinguishing devices 18 to extinguish fires at multiple locations on the power battery 16, thereby improving the fire extinguishing efficiency of the power battery 16 in the event of spontaneous combustion and reducing the extent of damage to the electric two-wheeled vehicle 100.

[0088] As an alternative implementation, 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 conduit 184 (see reference). Figure 2 The fire extinguishing conduit 184 is connected to the storage unit 181 and also to the release unit 182, allowing the fire extinguishing medium in the storage unit 181 to be released through the fire extinguishing conduit 184 and from the release unit 182. In this embodiment, the fire extinguishing conduit 184 can be arranged around the power battery 16, and multiple release units 182 are provided, evenly distributed on the fire extinguishing conduit 184. Through this arrangement, multiple release units 182 can be arranged around the power battery 16, enabling them to extinguish or cool the power battery 16 from various directions.

[0090] As another alternative implementation, when the power battery 16 is working, the temperature at the electrodes of the power battery 16 is the highest, that is, the temperature at the electrical connection point between the power battery 16 and the external circuit is the highest. Therefore, in this application, at least two fire extinguishing devices 18 can be located in the first accommodating area 103 near the electrodes of the power battery 16. This can improve the fire extinguishing efficiency at the electrodes of the power battery 16 by increasing the number of fire extinguishing devices 18, thereby further improving the safety of the electric two-wheeled vehicle 100.

[0091] It should be noted that the fire extinguishing device 18 of this application can also be arranged in the first accommodating area 103 near other high-temperature components in the power battery 16, and this application does not impose any restrictions.

[0092] like Figure 3 and Figure 8 As shown, in one implementation, the detection unit 183 is at least partially located in the first accommodating region 103 and mounted on the rear frame 113. Figure 3 and Figure 9 As shown, when controller 19 is present, controller 19 can be installed at any position on the frame 11, and this application does not impose any restrictions.

[0093] In this embodiment, the electrical connection between the release unit 182 and the detection unit 183 is used as an example for description. The release unit 182 can be a valve body (such as a solenoid valve), thereby controlling the opening or closing of the valve body to release or seal the extinguishing medium. Alternatively, the release unit 182 can be a nozzle, thereby controlling the opening or closing of the nozzle to release or seal the extinguishing medium. The opening direction of the valve body and the orientation of the nozzle are both towards the power battery 16. It should be noted that this application does not limit the specific structure of the release unit 182, as long as the release unit 182 can release the extinguishing medium in the storage unit 181.

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

[0095] As one implementation, the storage unit 181 can be made of a high-strength, lightweight material (such as aluminum alloy) to form a high-pressure resistant container, thereby reducing the weight of the storage unit 181 and increasing its structural strength to prevent damage. The storage unit 181 can be equipped with safety devices such as safety valves and pressure gauges to enhance its safety.

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

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

[0098] For example, such as Figure 10 As shown, 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 to the seat cushion 172. The detachable connection method between the fire extinguishing device 18 and the rear frame 113 is defined as the first preset connection method, and the detachable connection method between the fire extinguishing device 18 and the seat cushion 172 is defined as the second preset connection method. The second preset connection method is basically the same as the first preset connection method.

[0099] More specifically, the seat cushion 172 may be equipped with an adapter bracket 22 identical to that of the rear frame 113, and the adapter bracket 22 is detachably connected to the seat cushion 172.

[0100] like Figure 11 As shown, as another optional implementation, 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 inside the seat bucket 171, which is located within the first accommodating area 103. In this case, the fire extinguishing device 18 can be connected to the seat bucket 171. Specifically, the fire extinguishing device 18 is detachably connected to the seat bucket 171. This detachable connection method between the fire extinguishing device 18 and the seat bucket 171 is defined as the third preset connection method, which is essentially the same as the first preset connection method.

[0101] In this embodiment, the same adapter bracket 22 as the rear frame 113 can be installed on the seat bucket 171, and the adapter bracket 22 is detachably connected to the seat bucket 171.

[0102] like Figure 2 As shown, in one implementation, both the power battery 16 and the fire extinguishing device 18 can be located within the second accommodating area 104. In this case, the power battery 16 can be mounted on the center frame 112 and located below the foot pedal support 110, and the fire extinguishing device 18 can be mounted on the center frame 112 and located below the foot pedal support 110.

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

[0104] In this embodiment, the same adapter bracket 22 as the rear frame 113 can be installed on the mid-frame 112, and the adapter bracket 22 is detachably connected to the mid-frame 112.

[0105] It should be noted that the fire extinguishing device 18 can also be installed on the foot pedal support 110. The fire extinguishing device 18 is detachably connected to the foot pedal support 110. An adapter bracket 22 identical to that of the rear frame 113 can be installed on the foot pedal support 110, and the adapter bracket 22 is detachably connected to the foot pedal support 110.

[0106] like Figure 12 and Figure 13 As shown, as another optional implementation, when the electric two-wheeler 100 is a straddle-type two-wheeler, the mid-frame 112 forms a second accommodating area 104, the power battery 16 can be installed on the mid-frame 112, and the fire extinguishing device 18 can be installed on the mid-frame 112; or, as Figure 12 and Figure 14 As shown, the rear frame 113 forms a first accommodating area 103. The power battery 16 can also be installed on the rear frame 113 and located below the seat cushion 172. 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] When the electric two-wheeled vehicle 100 is a straddle-type two-wheeled vehicle, the connections between the middle frame 112 and the fire extinguishing device 18, the rear frame 113 and the fire extinguishing device 18, and the seat 172 and the fire extinguishing device 18 are all detachable. Furthermore, adapter brackets 22 can be installed on the middle frame 112, the rear frame 113, and the seat 172, and the adapter brackets 22 are detachably connected to the middle frame 112, the rear frame 113, and the seat 172.

[0108] In summary, this application does not restrict the arrangement of the power battery 16 and the fire extinguishing device 18, as long as the power battery 16 and the fire extinguishing device 18 are in the same space. Thus, when the power battery 16 is in an abnormal state, the fire extinguishing device 18 can extinguish or cool the power battery 16 in a timely manner to prevent the power battery 16 from spontaneously combusting, thereby improving the safety of the electric two-wheeled vehicle 100.

[0109] Secondly, in this application, there are no restrictions on the arrangement of the detection unit 183, as long as the detection unit 183 can detect the temperature of the accommodating space 101 or the power battery 16.

[0110] It should be noted that the fire extinguishing device 18 can also be placed in other areas that require cooling or fire extinguishing. For example, the fire extinguishing device 18 can be installed on the front cover 122 so that electrical components (such as wires) 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 anywhere on the electric two-wheeler 100, as long as the release unit 182 is positioned close to the power battery 16.

[0112] For example, when the power battery 16 is located in the first accommodating 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 accommodating area 103.

[0113] For example, when the power battery 16 is located within the second accommodating region 104, the storage unit 181 can be installed within the first accommodating region 103, and the release unit 182 can be located within the second accommodating region 104. Alternatively, when the power battery 16 is located within the second accommodating region 104, the storage unit 181 can be installed within the front cover 122, and the release unit 182 can be located within the second accommodating region 104.

[0114] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An electric two-wheeled vehicle, comprising: Frame; Body panel, which is connected to the vehicle frame; A walking system, at least partially located below the vehicle frame; The powertrain is connected to the walking system via a transmission. A power battery, which is electrically connected to the powertrain; Its features are, The vehicle body panels include a first panel and a second panel, both of which are made of metal or flame-retardant composite materials. The electric two-wheeler includes an adapter, which is mounted on the first panel and the second panel. The first panel and the second panel are detachably connected via the adapter, and the first panel and the second panel are detachably connected to the vehicle frame via the adapter.

2. The electric two-wheeled vehicle according to claim 1, characterized in that, The adapter is fixedly connected to the first cover and the second cover; the frame includes a front frame, a middle frame and a rear frame connected in sequence, and the body cover includes a seat bucket cover that is at least partially surrounding the rear frame, a front cover that is at least partially surrounding the front frame and a body cover that is at least partially surrounding the front frame. The seat bucket cover, the front cover and the body cover are all at least partially made of metal or flame-retardant composite material and include the first cover and the second cover.

3. The electric two-wheeled vehicle according to claim 1, characterized in that, The first cover has a first through hole, and the adapter has a second through hole. The axis of the second through hole is substantially coincident with the axis of the first through hole. The electric two-wheeled vehicle includes a fastener that passes through the first through hole and the second through hole and is connected to the second cover or the frame.

4. The electric two-wheeled vehicle according to claim 3, characterized in that, The way the second cover and the adapter are fitted together is basically the same as the way the first cover and the adapter are fitted together.

5. The electric two-wheeled vehicle according to claim 1, characterized in that, When the first cover is connected to the second cover, a channel is formed between the first cover and the second cover. The channel can perform at least one of the following functions: heat dissipation for the power battery, pressure relief when the power battery spontaneously combusts, providing space for vibration between the first cover and the second cover, and exhausting the smoke generated by the spontaneous combustion of the power battery to the outside.

6. The electric two-wheeled vehicle according to claim 5, characterized in that, Both the edge of the first cover and the edge of the second cover have a flanged structure. The flanged structure on the first cover and the flanged structure on the second cover form the channel. The flanged structure causes the channel to extend along a basic preset line direction. The preset line is one of the following lines: a line formed by connecting at least one curve and at least one broken line, a line formed by at least one curve, or a line formed by at least one broken line.

7. The electric two-wheeled vehicle according to claim 1, characterized in that, When the first cover and the second cover are respectively connected to the vehicle frame, channels are formed between the first cover and the vehicle frame, and between the second cover and the vehicle frame. The channels can perform at least one of the following functions: heat dissipation for the power battery, pressure relief when the power battery spontaneously combusts, space for vibration between the first cover and the vehicle frame, and exhaust of smoke generated by the spontaneous combustion of the power battery to the outside.

8. The electric two-wheeled vehicle according to claim 7, characterized in that, The edges of the first cover, the second cover, and the frame are formed with flanged structures. The flanged structures on the first cover and the frame form a channel. The flanged structures on the second cover and the frame form a channel. The flanged structures cause the channel to extend along a basic preset line direction. The preset line is one of the following: a line formed by connecting at least one curve and at least one broken line, a line formed by at least one curve, or a line formed by at least one broken line.

9. The electric two-wheeled vehicle according to claim 6 or 8, characterized in that, The flange structure extends substantially along the direction of the preset line.

10. The electric two-wheeled vehicle according to claim 1, characterized in that, The flame-retardant composite material is composed of at least one of glass fiber, carbon fiber, and basalt fiber as the matrix; the flame-retardant composite material contains a flame retardant; the metal material is steel or aluminum alloy.

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