Water-cooled electric scooter

Abstract

The present invention discloses a water-cooled electric scooter, comprising a head frame, a front wheel, a rear wheel, a pedal part, a charging adapter, a controller and a battery assembly. The pedal part is provided with a first installation cavity, a battery installation box is installed in the first installation cavity, the battery installation box is filled with cooling liquid, the battery assembly is immersed in the cooling liquid, at least one radiator, a first water pump and an external circulation pipeline are provided on the outside of the battery installation box, both ends of the external circulation pipeline are connected with the battery installation box, the radiator and the first water pump are arranged on the external circulation pipeline, a second installation cavity is provided in the head frame, a water cooling box and a liquid cooling mechanism are installed in the second installation cavity, the charging adapter and the controller are both integrated in the water cooling box, the liquid cooling mechanism comprises a liquid circulation pipeline and a second water pump arranged on the water cooling box, cooling liquid is provided in the liquid circulation pipeline, the second water pump is arranged on the liquid circulation pipeline, and the coolant flows in the liquid circulation pipeline to dissipate heat conducted by the water cooling box.

Description

Technical Field

[0001] The invention relates to a scooter, in particular to a water-cooled electric scooter. Background Art

[0002] As a new means of transportation and entertainment, scooters are environmentally friendly, compact, flexible and easy to operate. Therefore, the scooter industry has developed rapidly and the market penetration has also increased. Scooters include human-powered scooters and electric scooters. Electric scooters use wheel hub motors to drive the wheels to rotate and slide.

[0003] Traditional electric scooters are generally charged with an external adapter, and the charger needs to be carried for timely charging. Since the charger is easily lost, external charging lacks convenience. Existing scooters have built-in chargers.

[0004] For example, patent CN214112763U discloses a scooter with a built-in battery adapter, which includes a bottom shell, a cover plate and a battery assembly. The bottom shell is provided with a first groove, the battery assembly is arranged in the first groove, the cover plate is movably covered on the first groove, the battery assembly includes an outer shell, a battery and an adapter, the outer shell is arranged in the first groove, the battery and the adapter are respectively arranged in the outer shell, the battery and the adapter are connected, a second groove is provided at one end of the adapter, and the power cord of the adapter is plugged into the second groove.

[0005] The battery and charging adapter of the existing scooter are arranged together in the pedal. When charging at high power, both the battery and the charging adapter generate serious heat. It is not convenient to dissipate heat when the charging adapter and the battery are installed in the same pedal. Heat will accumulate in the pedal, causing the temperature in the pedal to be too high, which will affect the normal operation and service life of the electronic components in the pedal. Summary of the invention

[0006] Based on the problem that the charging adapter and the battery assembly are jointly arranged in the pedal, the battery and the charging adapter generate serious heat during high-power charging, which is inconvenient for heat dissipation, the present invention provides a water-cooled electric scooter.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: a water-cooled electric scooter, including a head frame, a front wheel, a rear wheel, a pedal part for stepping on, a charging adapter, a controller and a battery assembly, characterized in that a first installation cavity is provided in the pedal part, a closed battery installation box is installed in the first installation cavity, the battery installation box is filled with coolant, the battery assembly is placed in the battery installation box, and the battery assembly is immersed in the coolant, a liquid inlet and a liquid outlet are provided on the battery installation box, at least one radiator, a first water pump and an external circulation pipeline are provided on the outside of the battery installation box, and the two ends of the external circulation pipeline are respectively connected to the liquid inlet and the liquid outlet of the battery installation box. , to form a circulating liquid flow pipeline, the radiator and the first water pump are arranged on the external circulation pipeline, the head frame is provided with a second installation cavity, a water cooling box made of heat-conducting material and a liquid cooling mechanism arranged on the water cooling box are installed in the second installation cavity, the charging adapter and the controller are integrated in the water cooling box, the water cooling box is used to conduct the heat generated by the charging adapter and the controller, the liquid cooling mechanism includes a liquid circulation pipeline and a second water pump arranged on the water cooling box, the liquid circulation pipeline is provided with coolant, the second water pump is arranged on the liquid circulation pipeline for driving the coolant in the liquid circulation pipeline to circulate, so as to dissipate the heat conducted by the water cooling box.

[0008] A further preferred technical solution of the present invention is: the liquid circulation pipeline includes an inner pipeline arranged in the side wall of the water cooling box and an outer pipeline arranged outside the water cooling box, the second water pump is arranged on the outer pipeline, the water cooling box includes a main box body and a side cover opened on the opening side, the side cover is detachably connected to the opening of the main box body, the main box body includes an upper top plate, a lower bottom plate and a middle part, the upper top plate and the lower bottom plate are respectively connected to the upper and lower ends of the middle part, the middle part is U-shaped, the inner pipeline is a continuous bent pipeline arranged inside the wall thickness of the middle part, the continuous bent pipeline is provided with an inlet and an outlet, the inlet and the outlet are respectively connected to the two ends of the outer pipeline.

[0009] A further preferred technical solution of the present invention is: the controller and the charging adapter are both circuit boards and components integrated in the water cooling box, the upper top plate and the lower bottom plate are detachably connected at the upper and lower ends of the middle part, a plurality of slide groove groups are provided on the inner wall of the middle part, the slide groove groups include slide grooves relatively arranged on the inner walls on both sides of the middle part, the slide grooves extend along the length direction of the middle part and pass through the upper and lower ends of the middle part, a plurality of heat conducting parts are slidably arranged between the two opposite slide grooves, the heat conducting parts include sliders slidably arranged in the slide grooves on both sides, and a transverse heat conducting plate located between the two sliders, the two ends of the transverse heat conducting plate are respectively detachably connected to the sliders on both sides, and the transverse heat conducting plate is used to contact with the circuit board or components for heat conduction.

[0010] A further preferred technical solution of the present invention is: a vertical heat conducting plate is provided between the heat conducting parts adjacent to each other and in the same slide groove group, and both ends of the vertical heat conducting plate are detachably connected to the heat conducting parts on both sides, and the vertical heat conducting plate is used to contact with the circuit board or components for heat conduction.

[0011] A further preferred technical solution of the present invention is: at least one first cooling fan is installed on the side cover, the air inlet end of the first cooling fan is arranged in the water cooling box, and the tail of the air inlet end is closed, a plurality of air inlets are arranged on the side wall of the air inlet end, and the plurality of air inlets are arranged around the side wall, the air outlet end of the first cooling fan is arranged outside the water cooling box, and an air outlet is arranged on the air outlet end.

[0012] A further preferred technical solution of the present invention is: the inner pipeline includes a plurality of long pipeline cavities opened inside the wall thickness of the middle part, the long pipeline cavities extend along the length direction of the middle part and penetrate the upper and lower end surfaces of the middle part, each of the long pipeline cavities is arranged and distributed in sequence along the shape contour of the middle part, and channel grooves are opened on the upper and lower end surfaces of the middle part to connect the two adjacent long pipeline cavities to form a continuous bent pipeline, the upper top plate and the lower bottom plate are detachably connected to the upper and lower ends of the middle part, and the upper top plate and the lower bottom plate close the notches of the channel grooves on the two end surfaces.

[0013] A further preferred technical solution of the present invention is: an oil tank for storing coolant is provided on the external pipeline, the oil tank and the second water pump are both located above the water cooling box, the oil tank is transparent and visible, the oil tank is arranged on the top of the head frame, a window is provided on the top of the head frame to expose the oil tank, a filling hole and an exhaust valve are provided on the oil tank, and the exhaust valve is a one-way valve that limits the gas in the oil tank to flow only from the inside of the oil tank to the outside of the oil tank.

[0014] A further preferred technical solution of the present invention is: the head frame includes left and right upright poles, a front cover and a rear cover, the left and right upright poles are spaced apart to form a space for placing a water cooling box, the front cover and the rear cover are fixed to the front and rear sides of the left and right upright poles, the front cover, the rear cover and the left and right upright poles enclose the second installation cavity, the water cooling box is arranged between the left and right upright poles to divide the second installation cavity into a front inner cavity located in the front part of the water cooling box and a rear inner cavity located in the rear part of the water cooling box, the bottom of the water cooling box is provided with a bottom inner cavity connecting the front inner cavity and the rear inner cavity, the front cover includes a front side surface and left and right side surfaces, the front side surface is provided with a water cooling A first vent is arranged opposite to the front side wall of the box, and a second vent is arranged on the left and right side surfaces, and a heat dissipation air path for dissipating heat to the front of the water-cooled box is formed between the first vent and the second vent, a second cooling fan located on the front side of the water-cooled box is arranged in the front inner cavity, an air inlet of the second cooling fan faces the water-cooled box, an air outlet of the second cooling fan faces the first vent, and the second vent faces the side of the second cooling fan, a third vent is arranged on the rear side of the water-cooled box on the rear cover, a third cooling fan is arranged in the rear inner cavity, an air inlet of the third cooling fan faces the rear side of the water-cooled box, and an air outlet of the third cooling fan faces the third vent.

[0015] A further preferred technical solution of the present invention is: two radiators are provided on the external circulation pipeline, the first radiator is an air-cooled radiator, an inclined frame for installing the head frame is installed at the front end of the footrest, the first radiator is installed on the inclined frame, the first radiator includes a first heat dissipation pipeline and a fourth heat dissipation fan located on one side of the first heat dissipation pipeline, the first heat dissipation pipeline is connected to the external circulation pipeline, the second radiator is a semiconductor refrigerator, the semiconductor refrigerator includes a second heat dissipation pipeline and a semiconductor refrigeration plate, the second heat dissipation pipeline is connected to the external circulation pipeline, and the second heat dissipation pipeline is located on the cold surface side of the semiconductor refrigeration plate.

[0016] A further preferred technical solution of the present invention is: the semiconductor refrigerator is located on one side of the battery installation box, and a battery protection plate is installed on the other side of the battery installation box. The hot surface of the semiconductor refrigerator and the battery protection plate are respectively attached to the inner sides of the left and right side walls of the pedal part, and side covers are installed on the left and right side walls of the pedal part. A ventilation duct that runs through the side cover and the side wall of the pedal part is provided between the side cover and the side wall.

[0017] Compared with the prior art, the advantage of the present invention is that the charging adapter and the battery assembly are separately arranged, the charging adapter is arranged in the head frame, and the battery assembly is arranged in the footrest. The split structure facilitates the heat dissipation of the charging adapter and the battery assembly.

[0018] In addition, the battery assembly is immersed in the coolant in the battery mounting box. At least one radiator, a first water pump and an external circulation pipe are arranged on the outside of the battery mounting box. The two ends of the external circulation pipe are respectively connected to the liquid inlet and the liquid outlet of the battery mounting box to form a circulating liquid flow pipe. The radiator and the first water pump are arranged on the external circulation pipe. The coolant in the battery mounting box is driven by the first water pump to flow to the external circulation pipe, and then flows back into the battery mounting box to take away the heat on the battery assembly in the coolant. The radiator dissipates heat for the coolant flowing into the external circulation pipe. This structure is convenient for heat dissipation of the battery assembly in the battery mounting box.

[0019] The charging adapter and the controller are both integrated in the water cooling box. The water cooling box is used to conduct the heat generated by the charging adapter and the controller. When the charging adapter or the controller generates heat during operation, the heat of the charging adapter or the controller can be transferred to the water cooling box, and the second water pump is started. The second water pump drives the coolant in the liquid circulation pipeline to circulate. During the flow of the coolant, the heat conducted by the water cooling box is dissipated, thereby achieving the effect of dissipating the heat of the charging adapter and the controller in the water cooling box. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments, but those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be used as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematically representing the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0021] Figure 1 Schematic diagram of the structure of the scooter Figure 1 ;

[0022] Figure 2 Schematic diagram of the structure of the scooter Figure 2 ;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the pedal part;

[0024] Figure 4 This is a disassembled diagram of the bottom shell and cover;

[0025] Figure 5 This is the disassembled diagram of the first radiator;

[0026] Figure 6 Schematic diagram of the battery installation box and external circulation pipeline structure Figure 1 ;

[0027] Figure 7 Schematic diagram of the battery installation box and external circulation pipeline structure Figure 2 ;

[0028] Figure 8 This is a schematic diagram of the bottom structure of the battery installation box;

[0029] Fig. 9 is a cutaway schematic diagram of a pedal portion;

[0030] Fig.10 is a schematic diagram of the three-dimensional structure of the side cover;

[0031] Fig.11 It is a schematic diagram of the front structure of the headstock;

[0032] Fig.12 It is a schematic diagram of the rear structure of the head frame;

[0033] Fig.13 Disassembled diagram of the headstock;

[0034] Fig.14 This is a disassembled diagram of the front cover of the headstock;

[0035] Fig.15 It is a schematic diagram of the front cover structure;

[0036] Fig.16 , a schematic cross-section diagram of the headstock;

[0037] Fig.17 It is a cross-sectional schematic diagram of the connection structure between the water cooling box and the vertical poles on both sides;

[0038] Fig.18 It is a front side schematic diagram of the connection structure of the water cooling box, the second water pump, the oil tank and the liquid circulation pipeline;

[0039] Fig.19 It is a schematic diagram of the rear side of the connection structure of the water cooling box, the second water pump, the oil tank and the liquid circulation pipeline;

[0040] Fig. 20 This is a schematic diagram of the separation of the side cover and the main box;

[0041] Fig.21 It is a structural schematic diagram of the middle part;

[0042] Fig. 22 It is a schematic diagram of the half-section structure of the water cooling box;

[0043] Fig.23 This is a schematic diagram of the internal structure of the water cooling box;

[0044] Fig.24 It is a schematic diagram of the contact structure between the heat conducting member, the vertical heat conducting strip, the circuit board and the components;

[0045] Fig.25 A schematic diagram of the cutaway of the inner pipe in the middle part Figure 1 ;

[0046] Fig.26 A schematic diagram of the cutaway of the inner pipe in the middle part Figure 2 .

[0047] In the figure: 1, front frame; 2, pedal; 3, rear wheel; 4, front wheel; 5, swing arm; 6, support frame; 7, inclined frame; 8, handlebar; 9, USB interface; 10, charging interface; 11, front seat; 12, connection seat; 13, window; 14, cover plate; 15, side cover; 16, battery installation box; 17, first installation cavity; 18, mesh; 19, bottom shell; 20, first radiator; 21, placement groove; 22, battery protection board; 23, external circulation pipeline; 24, second radiator; 25, first water pump; 26 , liquid outlet; 27, liquid inlet; 28, Pi film heating plate; 29, semiconductor refrigeration plate; 30, second heat dissipation pipeline; 31, first heat dissipation pipeline; 32, fourth cooling fan; 33, ventilation duct; 34, first ventilation port; 35, second ventilation port; 36, second wire port; 37, third ventilation port; 38, front cover; 39, water cooling box; 40, vertical pole; 41, rear cover; 42, second cooling fan; 43, left and right sides; 44, front side; 45, front inner cavity; 46, charging adapter; 47, Rear inner cavity; 48, controller; 49, third cooling fan; 50, bottom inner cavity; 51, second screw; 52, horizontal plate; 53, first screw hole; 54, first threaded hole; 55, first side; 56, connecting block; 57, second threaded hole; 58, second side; 59, longitudinal plate; 60, second screw hole; 61, first screw; 62, exhaust valve; 63, refueling hole; 64, fuel tank; 65, liquid circulation pipeline; 66, second water pump; 67, external pipeline; 68, first cooling fan; 69, side cover ; 70. Main box body; 71. Partition; 72. Heat conducting part; 73. Middle part; 74. Channel groove; 75. Long cavity of pipe; 76. Slide groove; 77. Heat conducting aluminum part; 78. Upper top plate; 79. Air inlet; 80. Air outlet; 81. Lower bottom plate; 82. Slider; 83. Connecting part; 84. Bump; 85. Socket; 86. Horizontal heat conducting plate; 87. Vertical heat conducting plate; 88. Sealing pad; 89. Internal pipeline; 90. Inlet; 91. Water inlet interface; 92. Outlet; 93. Water outlet interface; 94. Battery assembly. DETAILED DESCRIPTION

[0048] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be appreciated by those skilled in the art that these descriptions are only illustrative and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0049] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0050] Figure 1-Figure 26 As shown, the water-cooled electric scooter includes a head frame 1, a front wheel 4, a rear wheel 3, a pedal portion 2 for stepping on, a charging adapter 46, a controller 48 and a battery assembly 94. The front wheel 4 and the rear wheel 3 are installed on the front and rear sides of the pedal portion 2, and the head frame 1 is installed on the front side of the pedal portion 2. The head frame 1 stands obliquely upward, and a handlebar 8 is provided on the top of the head frame 1. The bottom of the head frame 1 is connected to the front wheel 4. The user can rotate the head frame 1 by holding the handlebar 8 to steer the front wheel 4.

[0051] The charging adapter 46 and the battery assembly 94 are separately arranged, the charging adapter 46 is arranged in the head frame 1, and the battery assembly 94 is arranged in the foot pedal 2, so as to reduce the heat in the foot pedal 2 during high-power charging. The structure in which one is arranged in the head frame 1 and the other is arranged in the foot pedal 2 also facilitates the heat dissipation of each, thereby reducing the impact on the use and life due to excessive temperature.

[0052] The charging adapter 46 and the battery assembly 94 are both electrically connected to the controller 48 .

[0053] Figure 4 As shown, a first mounting cavity 17 is provided in the pedal portion 2 .

[0054] Specifically, the pedal portion 2 includes a bottom shell 19 and a cover plate 14. The bottom shell 19 is provided with a groove opening upward. The cover plate 14 is connected to the bottom shell 19 and seals on the notch of the groove to form the above-mentioned first installation cavity 17. The upper surface of the cover plate 14 is used as a stepping plane for the foot.

[0055] Figure 6 , Figure 7 As shown, a closed battery mounting box 16 is installed in the first mounting cavity 17, the battery mounting box 16 is filled with coolant, a battery assembly 94 is placed in the battery mounting box 16, and the battery assembly 94 is immersed in the coolant, a liquid inlet 27 and a liquid outlet 26 are provided on the battery mounting box 16, at least one radiator, a first water pump 25 and an external circulation pipe 23 are provided on the outside of the battery mounting box 16, two ends of the external circulation pipe 23 are respectively connected to the liquid inlet 27 and the liquid outlet 26 of the battery mounting box 16 to form a circulating liquid flow pipe, and the radiator and the first water pump 25 are arranged on the external circulation pipe 23.

[0056] The first water pump 25 is used to drive the coolant in the battery installation box 16 to flow into the external circulation pipe 23, and then flow back into the battery installation box 16 after passing through the external circulation pipe 23. The radiator is used to dissipate heat from the coolant flowing into the external circulation pipe 23.

[0057] When the battery assembly 94 generates severe heat during charging or use, the first water pump 25 drives the coolant in the battery installation box 16 to flow into the external circulation pipe 23. The coolant in the battery installation box 16 takes away the heat generated by the battery assembly 94. After the coolant flows into the external circulation pipe 23, the radiator dissipates the heat of the coolant flowing into the external circulation pipe 23. The coolant after dissipation flows back into the battery installation box 16. During the continuous circulation of the coolant, the coolant continuously takes away the heat generated by the battery assembly 94 to reduce the temperature of the battery assembly 94, thereby achieving a good heat dissipation effect and preventing the battery assembly 94 from having an excessively high temperature that affects the discharge efficiency and the service life of the battery assembly 94.

[0058] Preferably, two radiators are provided on the external circulation pipeline 23 .

[0059] Figure 5 As shown, the first radiator 20 is an air-cooled radiator, and an inclined frame 7 for mounting the head frame 1 is installed at the front end of the footrest part 2, and the first radiator 20 is installed on the inclined frame 7.

[0060] An installation groove 21 for accommodating the first radiator 20 is provided on the inclined frame 7. The first radiator 20 is fixed in the installation groove 21. The first radiator 20 includes a first heat dissipation pipe 31 and a fourth heat dissipation fan 32 located on one side of the first heat dissipation pipe 31. Both ends of the installation groove 21 pass through the upper and lower surfaces of the inclined frame 7. When the first radiator 20 is installed in the installation groove 21, the fourth heat dissipation fan 32 and the first heat dissipation pipe 31 are respectively exposed from the upper and lower sides of the inclined frame 7, and the first heat dissipation pipe 31 is connected to the external circulation pipe 23.

[0061] The first radiator 20 is installed on the inclined frame 7 to make full use of the space of the inclined frame 7, thereby reducing the space of the footrest part 2 and making the structure more compact. The first radiator 20 is arranged on the outside of the footrest part 2 to facilitate the operation of the fourth cooling fan 32 to dissipate heat from the coolant flowing into the first cooling pipe 31.

[0062] Preferably, the fourth cooling fan 32 is an axial flow fan.

[0063] When the coolant entering the external circulation pipe 23 passes through the first heat dissipation pipe 31, the fourth heat dissipation fan 32 inhales air, and the air takes away the heat of the coolant in the first heat dissipation pipe 31 and is blown out from the other side of the fourth heat dissipation fan 32 to dissipate the heat of the coolant in the first heat dissipation pipe 31.

[0064] Figure 6 As shown, another second radiator 24 is a semiconductor refrigerator, which includes a second heat dissipation pipe 30 and a semiconductor cooling plate 29 . The second heat dissipation pipe 30 is connected to the external circulation pipe 23 , and the second heat dissipation pipe 30 is located on the cold surface side of the semiconductor cooling plate 29 .

[0065] When the coolant entering the external circulation pipe 23 passes through the second heat dissipation pipe 30 , the second heat dissipation pipe 30 exchanges heat with the cold surface, thereby dissipating heat for the coolant in the second heat dissipation pipe 30 .

[0066] Fig. 9 As shown, the semiconductor refrigerator is arranged in the first installation cavity 17, and the semiconductor refrigerator is fixed on the pedal part 2. The semiconductor refrigerator is located on one side of the battery installation box 16, and a battery protection plate 22 is fixedly installed on the other side of the battery installation box 16. The cold surface of the semiconductor cooling plate 29 is located on the inner side facing the inner second heat dissipation pipe 30, and the hot surface of the semiconductor cooling plate 29 and the battery protection plate 22 are respectively facing the side walls on the left and right sides of the pedal part 2, and the hot surface of the semiconductor cooling plate 29 and the battery protection plate 22 are respectively fitted with the inner sides of the side walls on the left and right sides of the pedal part 2. Side covers 15 are installed on the side walls on the left and right sides of the pedal part 2, and a ventilation duct 33 that passes through the side cover 15 and the side wall of the pedal part 2 is provided between the side cover 15 and the side wall of the pedal part 2.

[0067] When the scooter is running, the heat generated by the hot surface of the semiconductor cooling plate 29 and the battery protection plate 22 will be transferred to the side walls on the left and right sides of the pedal part 2. During running, the wind passes through the ventilation duct 33 and takes away the heat, thereby having a certain heat dissipation effect on the hot surface of the semiconductor cooling plate 29 and the battery protection plate 22.

[0068] Fig.10 As shown, preferably, the ventilation duct 33 is formed by being recessed in the side cover 15 , and the air inlet and air outlet at both ends of the ventilation duct 33 are respectively arranged on the front and rear side walls of the side cover 15 .

[0069] The air inlet and outlet ports at both ends of the ventilation duct 33 are mesh-shaped holes 18 to prevent external foreign matter from entering the ventilation duct 33 and blocking the ventilation duct 33 .

[0070] The semiconductor cooling sheet 29 is an existing structure. Preferably, the semiconductor cooling sheet 29 is a Peltier.

[0071] The liquid outlet 26 and the liquid inlet 27 of the above-mentioned battery installation box 16 are both fixed with interfaces. The interface on the liquid outlet 26 is connected to the inlet of the first water pump 25 through a hose, and the outlet of the first water pump 25 is connected to the water inlet of the second heat dissipation pipe 30 through a hose. The water outlet of the second heat dissipation pipe 30 is connected to the water inlet of the first heat dissipation pipe 31 through a hose, and the water outlet of the first heat dissipation pipe 31 is connected to the interface on the liquid inlet 27 through a hose.

[0072] The first water pump 25 is fixedly connected to the inner wall of the first installation cavity 17 .

[0073] Figure 8As shown, in addition, a Pi film heating sheet 28 is fixed on the outer surface of the battery mounting box 16. Preferably, the Pi film heating sheet 28 is fixed to the bottom of the battery mounting box 16. When the temperature is too low, the battery mounting box 16 can be heated by starting the Pi film heating sheet 28 to keep the battery assembly 94 at a temperature suitable for battery use, thereby increasing the battery life.

[0074] Fig.13 As shown, a second installation cavity is provided in the head frame 1, in which a water cooling box 39 made of a heat-conducting material and a liquid cooling mechanism arranged on the water cooling box 39 are installed, and the charging adapter 46 and the controller 48 are integrated in the water cooling box 39, and the water cooling box 39 is used to conduct the heat generated by the charging adapter 46 and the controller 48.

[0075] Fig.23 As shown, preferably, the controller 48 and the charging adapter 46 are circuit boards and components integrated in the water cooling box 39, and the circuit boards and components are directly or indirectly in contact with the inner wall of the water cooling box 39. When the circuit boards and components are heated, the heat is transferred to the water cooling box 39. A fixed heat-conducting aluminum part 77 can be set on the inner side of the controller 48 and the charging adapter 46, and the heat-conducting aluminum part 77 is in contact with the controller 48 / charging adapter 46 and the inner wall of the water cooling box 39, and is used to transfer the heat on the controller 48 / charging adapter 46 to the water cooling box 39, so as to facilitate the water cooling box 39 to dissipate heat outward. The water cooling box 39 is made of aluminum.

[0076] The water cooling box 39 is used for heat conduction and also serves as a housing for the controller 48 and the charging adapter 46 .

[0077] Fig.18 , Fig.21 , Fig.25 , Fig.26 As shown, the liquid cooling mechanism includes a liquid circulation pipe 65 and a second water pump 66 arranged on the water cooling box 39. The liquid circulation pipe 65 is provided with cooling liquid. The second water pump 66 is arranged on the liquid circulation pipe 65 to drive the circulation of the cooling liquid in the liquid circulation pipe 65 to dissipate the heat conducted by the water cooling box 39.

[0078] When charging through the charging adapter 46 or the controller 48 is working, the heat generated by the controller 48 and the charging adapter 46 can be transferred to the water cooling box 39, and the second water pump 66 is started. The second water pump 66 drives the coolant in the liquid circulation pipe 65 to circulate, taking away the heat transferred to the water cooling box 39 by the charging adapter 46 or the controller 48, dissipating the heat of the charging adapter 46 and the controller 48, and alleviating the serious heating problem of the charging adapter 46 and the controller 48.

[0079] The liquid circulation pipeline 65 includes an inner pipeline 89 disposed in the side wall of the water cooling box 39 and an outer pipeline 67 disposed outside the water cooling box 39, and the second water pump 66 is disposed on the outer pipeline 67. The coolant flows into the inner pipeline 89 to exchange heat with the water cooling box 39 to take away the heat on the water cooling box 39, and then flows into the outer pipeline 67 to dissipate the absorbed heat.

[0080] Fig. 20 As shown, preferably, the water cooling box 39 is a square box, and the water cooling box 39 includes a main box body 70 with an opening side open and a side cover 69, and the side cover 69 is detachably connected to the opening of the main box body 70 to cover the opening of the side of the main box body 70, and the main box body 70 includes an upper top plate 78, a lower bottom plate 81 and a middle part 73, and the upper top plate 78 and the lower bottom plate 81 are respectively connected to the upper and lower ends of the middle part 73, and the middle part 73 is U-shaped, and the inner pipeline 89 is a continuous bending pipeline arranged inside the wall thickness of the middle part 73, and the continuous bending pipeline is provided with an inlet 90 and an outlet 92, and the inlet 90 and the outlet 92 are respectively connected to the two ends of the outer pipeline 67, so that the inner pipeline 89 and the outer pipeline 67 form a circle of circulation pipelines for the circulation of the coolant. The side cover 69 is fixedly connected to the main box body 70 by screws.

[0081] The continuously bent pipe increases the contact area with the water cooling box 39, thereby improving the heat dissipation effect.

[0082] Fig.25 , Fig.26 As shown, specifically, the inner pipeline 89 includes a plurality of long pipeline cavities 75 opened inside the wall thickness of the middle portion 73, the long pipeline cavities 75 extend along the length direction of the middle portion 73, and penetrate the upper and lower end surfaces of the middle portion 73, and each long pipeline cavity 75 is arranged and distributed in sequence along the shape contour of the middle portion 73, and channel grooves 74 are opened on the upper and lower end surfaces of the middle portion 73 to connect the two adjacent long pipeline cavities 75 to form the above-mentioned continuous bent pipeline, the upper top plate 78 and the lower bottom plate 81 are detachably connected to the upper and lower ends of the middle portion 73, and the upper top plate 78 and the lower bottom plate 81 close the notches of the channel grooves 74 on the two end surfaces of the middle portion 73.

[0083] The upper top plate 78 and the lower bottom plate 81 are detachably connected to the middle portion 73 to facilitate continuous bending of the pipe.

[0084] Preferably, the upper top plate 78 and the lower bottom plate 81 are fixedly connected to the middle portion 73 by screws.

[0085] A sealing gasket 88 is provided between the upper top plate 78 and the lower bottom plate 81 and the middle portion 73 for sealing.

[0086] Preferably, two adjacent channel grooves 74 are respectively arranged at the upper and lower ends of the long pipeline cavity 75, so that the inner pipeline 89 is a continuous serpentine pipeline.

[0087] The second water pump 66 is fixedly mounted on the water cooling box 39 .

[0088] In addition, an oil tank 64 for storing coolant is provided on the external pipeline 67 , and the oil tank 64 and the second water pump 66 are both located above the water cooling box 39 .

[0089] The second water pump 66 delivers the coolant in the oil tank 64 from the inlet 90 to the inner pipe 89 , and the coolant flows out from the outlet 92 after passing through the inner pipe 89 , and then flows back to the oil tank 64 , forming a cycle.

[0090] An oil tank 64 is added to the liquid circulation pipeline 65 to prevent the presence of air in the liquid circulation pipeline 65 so that the coolant cannot be pumped out from the inner pipeline 89, thereby causing the second water pump 66 to run idle and burn out.

[0091] Figure 2 , Fig.18 As shown, the oil tank 64 is transparent and visible, and the oil tank 64 is arranged on the top of the head frame 1. A window 13 is arranged on the top of the head frame 1 to expose the oil tank 64, so that the user can observe the oil level in the oil tank 64 during use. Preferably, a head seat 11 is fixedly installed on the top of the head frame 1, and the head seat 11 covers the upper cavity opening of the second installation cavity. The head seat 11 is provided with an instrument, and the window 13 is arranged on the head seat 11. The oil tank 64 is fixed to the bottom of the head seat 11 and exposed from the window 13.

[0092] The oil tank 64 is provided with a refueling hole 63 and an exhaust valve 62 . The exhaust valve 62 is a one-way valve that limits the gas in the oil tank 64 to flow only from the inside of the oil tank 64 to the outside of the oil tank 64 .

[0093] When the user observes that the oil level in the oil tank 64 is insufficient, the user can add oil through the oil filling hole 63 .

[0094] The gas in the oil tank 64 is affected by the external environment or the temperature of the coolant, and expands after being heated. The expanded gas can be discharged from the exhaust valve 62 to the external atmospheric environment.

[0095] The upper top plate 78 is provided with a water inlet interface 91 and a water outlet interface 93, which are respectively connected to an inlet 90 and an outlet 92. The inlet 90 and the outlet 92 are respectively the openings of the first and last long pipe cavities 75 located on the upper end surface of the middle portion 73.

[0096] Fig.21 , Fig.23 , Fig.24As shown, in addition, a plurality of slide groove groups are provided on the inner wall of the middle portion 73, and the slide groove groups include slide grooves 76 relatively arranged on the inner walls on both sides of the middle portion 73, and the slide grooves 76 are extended along the length direction of the middle portion 73 and pass through the upper and lower ends of the middle portion 73, and a plurality of heat conducting members 72 are slidably provided between the two opposite slide grooves 76, and the heat conducting member 72 includes sliders 82 slidably arranged in the slide grooves 76 on both sides, and a transverse heat conducting sheet 86 located between the two sliders 82, and the two ends of the transverse heat conducting sheet 86 are detachably connected to the sliders 82 on both sides, and the transverse heat conducting sheet 86 is used to contact with the circuit board or components for heat conduction.

[0097] The slider 82 can enter the slide groove 76 through the notch on the upper end surface or the lower end surface of the middle portion 73 of the slide groove 76, and can move in the slide groove 76 to adjust the position of the transverse heat conducting sheet 86 in the water cooling box 39, so that the transverse heat conducting sheet 86 can contact the circuit board or components. The slider 82 is positioned in the slide groove 76 by friction resistance.

[0098] Preferably, the slide groove 76 is T-shaped, and the slider 82 is a T-shaped slider that matches the shape of the slide groove 76 .

[0099] Preferably, the slider 82 is provided with a connecting portion 83 protruding from the slide groove 76, the connecting portion 83 is square, and the upper surface, the lower surface and the outer surface opposite to the side cover 69 of the connecting portion 83 are provided with protrusions 84, and the two ends of the transverse heat conductive sheet 86 are provided with sockets 85 matching the protrusions 84. The sockets 85 at both ends of the transverse heat conductive sheet 86 are inserted into the protrusions 84 on the sliders 82 on both sides to connect the transverse heat conductive sheet 86 to the sliders 82 on both sides, and when connected, the wide surfaces at both ends of the transverse heat conductive sheet 86 are in surface-to-surface contact with the surface of the connecting portion 83, so that the transverse heat conductive sheet 86 can transfer heat to the slider 82, and then transfer heat to the water cooling box 39 from the slider 82.

[0100] The protrusions 84 on the three side surfaces enable the transverse heat conductive sheet 86 to be installed on the upper side, lower side and outer side of the side cover 69 of the connecting portion 83. When the transverse heat conductive sheet 86 is installed on the upper side or lower side of the connecting portion 83, the wide side of the transverse heat conductive sheet 86 is arranged horizontally for contacting the lateral surfaces of the circuit board and components. When the heat conductive sheet is installed on the outer side of the side cover 69 of the connecting portion 83, the wide side of the transverse heat conductive sheet 86 is arranged vertically for contacting the vertical surfaces of the circuit board and components.

[0101] The detachable installation structure of the heat conducting member 72 is convenient for being installed in the water cooling box 39 and is arranged between various components.

[0102] A vertical heat conducting sheet 87 is provided between the heat conducting members 72 adjacent to each other and in the same group of slide grooves 76. Both ends of the vertical heat conducting sheet 87 are detachably connected to the heat conducting members 72 on both sides. The vertical heat conducting sheet 87 is used to contact with the circuit board or components for heat conduction.

[0103] Preferably, the wide surface of the transverse heat conducting sheet 86 is provided with protrusions 84 for connection, and the two ends of the vertical heat conducting sheet 87 are provided with sockets 85 matched with the protrusions 84, and the sockets 85 at the two ends of the vertical heat conducting sheet 87 are inserted into the protrusions 84 on the transverse heat conducting sheets 86 on the upper and lower sides so that the vertical heat conducting sheet 87 is connected with the transverse heat conducting sheets 86 on both sides, and when connected, the wide surfaces at both ends of the vertical heat conducting sheet 87 are in surface contact with the wide surfaces of the transverse heat conducting sheets 86 on both sides, so that the vertical heat conducting sheet 87 can transfer heat to the transverse heat conducting sheet 86. This structure facilitates the installation of the vertical heat conducting sheet 87.

[0104] The heat conducting member 72 and the vertical heat conducting sheet 87 increase the heat conducting area in contact with the circuit board and components, making it easier to conduct heat from the circuit board and components and to dissipate heat from the circuit board and components.

[0105] Preferably, the heat conducting member 72 and the vertical heat conducting sheet 87 are heat conducting aluminum sheets, and a heat conducting silicone layer may also be provided on the surface of the aluminum sheet.

[0106] The installation structure of the heat conducting member 72 and the vertical heat conducting sheet 87 facilitates the installation and subsequent replacement of the heat conducting member 72 and the vertical heat conducting sheet 87, and is more flexible to use. The length and shape of the vertical heat conducting sheet 87 and the horizontal heat conducting sheet 86 can be set according to their own needs, as long as both ends can be installed in the corresponding protrusions 84.

[0107] Fig.19 , Fig. 20 , Fig. 22 As shown, in addition, at least one first cooling fan 68 is installed on the side cover 69, the air inlet end of the first cooling fan 68 is arranged in the water cooling box 39, and the tail of the air inlet end is closed, a plurality of air inlets 79 are arranged on the side wall of the air inlet end, and the plurality of air inlets 79 are arranged around the side wall, and the air outlet end of the first cooling fan 68 is arranged outside the water cooling box 39, and an air outlet 80 is provided on the air outlet end.

[0108] Preferably, a plurality of air inlets 79 are arranged in an annular array on the circumferential outer wall of the air inlet end. The first cooling fan 68 can be an axial flow fan or a centrifugal fan.

[0109] The first cooling fan 68 is used to discharge the hot air in the water cooling box 39 to reduce the temperature inside the water cooling box 39 .

[0110] The air inlet 79 of the first cooling fan 68 is disposed on the side wall of the air inlet end so that air from all directions can be sucked in from the corresponding air inlet 79, thereby increasing the suction force of the first cooling fan 68 and facilitating the removal of heat.

[0111] In addition, a partition 71 is inserted into the water cooling box 39, which divides the water cooling box 39 into two upper and lower cavities. The charging adapter 46 and the controller 48 are respectively arranged in the two cavities. A first wire opening connected to the two cavities is provided on the bottom of the water cooling box 39 and the side cover 69, and the first wire opening is used for internal wiring.

[0112] The first line opening can also be used as an air inlet 79 for taking air into the water cooling box 39, so that a heat dissipation air path can be formed when the first heat dissipation fan 68 is started.

[0113] Preferably, two first cooling fans 68 are provided on the side cover 69, and air inlet ends of the two first cooling fans 68 are respectively located in the two cavities.

[0114] Fig.11 As shown, in addition, a plurality of first vents 34 are provided on the front side of the head frame 1, and a plurality of second vents 35 are provided on at least one of the left and right sides of the head frame 1, and a heat dissipation air path for dissipating heat from the water cooling box 39 is formed between the first vents 34 and the second vents 35.

[0115] Fig.14 As shown, a second cooling fan 42 is provided in the second installation cavity, and the second cooling fan 42 is used to actively dissipate the heat conducted from the water cooling box 39 to the outside of the head frame 1.

[0116] When charging or driving at a low speed (such as climbing a hill), the natural wind blowing towards the front frame 1 is weak, which cannot achieve a good heat dissipation effect. The heat conducted on the water cooling box 39 is actively cooled by starting the second cooling fan 42 to achieve the effect of cooling the controller 48 and the charging adapter 46; when the scooter is driving at high speed, due to the high speed and the strong wind force on the front, the natural wind will enter the front frame 1 from the first vent 34 on the front side of the front frame 1, and be discharged from the second vent 35 after passing through the heat dissipation air path, passively taking away the heat generated by the controller 48 and conducted to the water cooling box 39. The heat generated by the controller 48 and the charging adapter 46 in the front frame 1 and conducted to the water cooling box 39 is reasonably cooled by the active heat dissipation of the second cooling fan 42 and the passive heat dissipation of the natural wind, so as to alleviate the problem of serious heating of the controller 48 and the charging adapter 46 in the water cooling box 39 when in use.

[0117] Fig.16 As shown, preferably, the opening of the first vent 34 faces straight ahead, and the first vent 34 faces the front side wall of the water cooling box 39. The opening direction of the first vent 34 enables the oncoming wind energy to enter the second installation cavity from the first vent 34 to the greatest extent, so as to achieve better heat dissipation effect.

[0118] When the scooter is running at high speed, wind enters the second installation cavity from the first vent 34, and the wind entering the second installation cavity hits the front side wall of the water cooling box 39, causing the airflow to disperse, taking away the heat on the water cooling box 39, and finally discharged from the second vent 35 on the side.

[0119] Fig.14 As shown, there are multiple first vents 34 and multiple second vents 35, and the multiple first vents 34 and multiple second vents 35 are arranged along the length direction of the water cooling box 39, that is, the first vents 34 and the second vents 35 are arranged from top to bottom on the front frame 1, so that the water cooling box 39 can be blown by wind in the entire length direction.

[0120] Preferably, second ventilation holes 35 are provided on both the left and right side walls of the head frame 1 .

[0121] In addition, the air inlet of the second cooling fan 42 faces the water cooling box 39 and is arranged close to the side wall of the water cooling box 39. There is a gap between the air inlet of the second cooling fan 42 and the side wall of the water cooling box 39 for air to flow through.

[0122] When the second cooling fan 42 is started, air enters the air inlet of the second cooling fan 42 through the gap between the air inlet of the second cooling fan 42 and the side wall of the water cooling box 39. In this process, the air takes away the heat on the side wall of the water cooling box 39 to dissipate the temperature of the water cooling box 39.

[0123] Preferably, the second cooling fan 42 is arranged on the front side of the water cooling box 39, the air outlet of the second cooling fan 42 faces the first vent 34, the second vent 35 faces the side of the second cooling fan 42, and the second cooling fan 42 is an axial flow fan.

[0124] When the second cooling fan 42 is started, air enters the installation cavity from the second ventilation port 35, passes through the gap between the second cooling fan 42 and the front side wall of the water cooling box 39, takes away the heat on the water cooling box 39, and is then transported to the first ventilation port 34 by the second cooling fan 42, and is discharged from the first ventilation port 34. The air outlets of the first ventilation port 34 and the second cooling fan 42 are relatively convenient for discharging hot air, thereby reducing heat accumulation in the second installation cavity.

[0125] In order to achieve a better heat dissipation effect, a plurality of second heat dissipation fans 42 are provided, and the plurality of second heat dissipation fans 42 are arranged along the length direction of the water cooling box 39 to dissipate heat for the entire water cooling box 39 .

[0126] The second cooling fan 42 is fixed on the front side wall of the water cooling box 39 .

[0127] Fig.13As shown, specifically, the front frame 1 includes two left and right vertical poles 40, a front cover 38, a rear cover 41 and a front seat 11. The left and right vertical poles 40 are spaced apart to form a space for placing a water cooling box 39. The front cover 38 and the rear cover 41 are fixed on the front and rear sides of the left and right vertical poles 40. The front cover 38, the rear cover 41 and the left and right vertical poles 40 enclose a second installation cavity with a cavity opening on the top. The front seat 11 is fixed on the top of the two vertical poles 40 to cover the cavity opening. The water cooling box 39 is arranged between the left and right vertical poles 40 to divide the first installation cavity 17 into a front inner cavity 45 located in the front part of the water cooling box 39 and a rear inner cavity 47 located in the rear part of the water cooling box 39. The bottom of the water cooling box 39 is provided with a bottom inner cavity 50 connecting the front inner cavity 45 and the rear inner cavity 47.

[0128] Fig.15 As shown, the front cover 38 includes a front side surface 44 and left and right side surfaces 43. The first vent 34 is arranged on the front side surface 44, and the second vent 35 is arranged on the left and right side surfaces 43. A heat dissipation air path for dissipating heat to the front of the water cooling box 39 is formed between the first vent 34 and the second vent 35.

[0129] Fig.12 As shown, a third vent 37 is provided on the rear cover 41, and the third vent 37 is located on the rear side of the water cooling box 39. A third cooling fan 49 is provided in the rear inner cavity 47. The air inlet of the third cooling fan 49 faces the rear side wall of the water cooling box 39, and the air outlet of the third cooling fan 49 faces the third vent 37.

[0130] Fig.14 As shown, since the first vent 34, the second vent 35 and the second cooling fan 42 are all arranged on the front side of the water cooling box 39, and the first vent 34 and the second vent 35 are connected to the front inner cavity 45, the second cooling fan 42 is located in the front inner cavity 45. During heat dissipation, the second cooling fan 42 and the heat dissipation air path only dissipate the heat for the water cooling box 39 part in the front inner cavity 45, and the water cooling box 39 part located in the rear inner cavity 47 cannot be well cooled.

[0131] Fig.16 As shown, in order to dissipate the heat of the water-cooling box 39 part in the rear inner cavity 47, a third cooling fan 49 is provided. By starting the third cooling fan 49, the air entering the front inner cavity 45 from the first vent 34 and / or the second vent 35 can enter the rear inner cavity 47 from the bottom inner cavity 50, and after passing through the rear inner cavity 47, it carries the heat on the water-cooling box 39 part located in the rear inner cavity 47, and is finally blown to the third vent 37 by the third cooling fan 49, and discharged from the third vent 37, thereby improving the heat dissipation effect.

[0132] The third cooling fan 49 is connected to the inner wall of the rear cover 41 , and the third cooling fan 49 is connected to the third ventilation port 37 .

[0133] Preferably, the third cooling fan 49 is an axial flow fan.

[0134] Preferably, the bottom inner cavity 50 is a bell-mouth-shaped cavity structure.

[0135] Fig.17 As shown, the water cooling box 39 is detachably connected between the two vertical poles 40, and connecting blocks 56 are fixed on the two side walls of the water cooling box 39 opposite to the vertical poles 40 on both sides. The connecting blocks 56 are protruded on the side walls, and the vertical poles 40 include a transverse plate 52 and a longitudinal plate 59. The longitudinal plate 59 is fixedly connected to one side of the transverse plate 52. Preferably, the longitudinal plate 59 and the transverse plate 52 are integrally formed, and the connecting block 56 includes a first side surface 55 opposite to the transverse plate 52 and a second side surface 58 opposite to the longitudinal plate 59. The transverse plate 52 is fixed to the first side surface 55 by a first screw 61, and the longitudinal plate 59 is fixed to the second side surface 58 by a second screw 51, so that the connection between the water cooling box 39 and the vertical poles 40 is more stable.

[0136] Specifically, a first screw hole 53 is provided on the horizontal plate 52, a first threaded hole 54 opposite to the first screw hole 53 is provided on the first side surface 55, a second screw hole 60 is provided on the vertical plate 59, and a second threaded hole 57 opposite to the second screw hole 60 is provided on the second side surface 58. During installation, the connecting block 56 on one side of the water cooling box 39 is placed on the vertical plate 59, the second screw 51 is passed through the second screw hole 60 to connect with the second threaded hole 57 on the second side surface 58, and then the first screw 61 is passed through the first screw hole 53 to connect with the first threaded hole 54 on the first side surface 55. The connecting block 56 on the other side of the water cooling box 39 is connected to the vertical pole 40 on the other side in the same way.

[0137] Preferably, the vertical rod 40 is T-shaped.

[0138] Figure 2 As shown, a charging interface 10 for connecting an external power cord is fixed on the back cover 41, and a charging adapter 46 is connected to the charging interface 10 through a wire and is electrically connected to the charging interface 10. When charging is needed, the user can charge through a power cord, which is convenient for carrying and storage.

[0139] A connecting seat 12 is fixed to the bottom of the two vertical rods 40, the handlebars 8 are arranged on both sides of the front seat 11, the front wheel 4 is fixed to the front end of the swing arm 5, the rear end of the swing arm 5 is hinged on the support frame 6, and a vertical pipe is fixed to the top of the support frame 6. The vertical pipe can be rotatably inserted in the front side of the pedal part 2, and the upper end of the vertical pipe is fixed to the connecting seat 12.

[0140] A USB interface 9 is disposed at the upper end of the head frame 1 , and the USB interface 9 faces the user side. The user can connect an external device to the USB interface 9 via a data cable for charging.

[0141] A second wire opening 36 is provided at the bottom of the front frame 1 on one side close to the pedal portion 2 . The second wire opening 36 is connected to the second installation cavity. The wires connected to the battery assembly 94 are connected from the second wire opening 36 to the second installation cavity and are electrically connected to the charging adapter 46 .

[0142] The opening direction of the second wire opening 36 extends obliquely downward, and the wires are connected upward to the second installation cavity to prevent rain from flowing into the second installation cavity along the wires on rainy days.

[0143] The radiator on the footrest 2, the first water pump 2, and the Pi membrane heating plate 28 are all electrically connected to the light control board in the footrest 2, and the second water pump 66, the first cooling fan 68, the second cooling fan 42, and the third cooling fan 49 on the head frame 1 are all electrically connected to the light control board in the head frame 1, and then each light control board, the charging adapter 46, and the battery assembly 94 are all electrically connected to the controller 48.

[0144] The water-cooled electric scooter provided by the present invention is introduced above. The principle and implementation mode of the present invention are described in this article by using specific examples. The description of the above embodiments is only used to help understand the present invention and its core ideas. It should be pointed out that for ordinary technicians in this technical field, the present invention can also be improved and modified in a number of ways without departing from the principle of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A water-cooled electric scooter, comprising a head frame, a front wheel, a rear wheel, a pedal for stepping on, a charging adapter, a controller and a battery assembly, characterized in that: The pedal portion is provided with a first installation cavity, in which a closed battery installation box is installed, the battery installation box is filled with coolant, the battery assembly is placed in the battery installation box, and the battery assembly is immersed in the coolant, the battery installation box is provided with a liquid inlet and a liquid outlet, at least one radiator, a first water pump and an external circulation pipeline are provided on the outside of the battery installation box, the two ends of the external circulation pipeline are respectively connected to the liquid inlet and the liquid outlet of the battery installation box to form a circulating liquid flow pipeline, the radiator and the first water pump are arranged on the external circulation pipeline, the head frame is provided with a second installation cavity, in which a water cooling box made of heat-conducting material and a liquid cooling mechanism arranged on the water cooling box are installed, the charging adapter and the controller are both integrated in the water cooling box, the water cooling box is used to conduct the heat generated by the charging adapter and the controller, the liquid cooling mechanism includes a liquid circulation pipeline and a second water pump arranged on the water cooling box, the liquid circulation pipeline is provided with coolant, and the second water pump is arranged on the liquid circulation pipeline The pipeline is used to drive the coolant in the liquid circulation pipeline to circulate so as to dissipate the heat conducted by the water cooling box. The liquid circulation pipeline includes an inner pipeline arranged in the side wall of the water cooling box and an outer pipeline arranged outside the water cooling box. The second water pump is arranged on the outer pipeline. The water cooling box includes a main box body and a side cover with an opening side, and the side cover is detachably connected to the opening of the main box body. The main box body includes an upper top plate, a lower bottom plate and a middle part. The upper top plate and the lower bottom plate are respectively connected to the upper and lower ends of the middle part, and the middle part is U-shaped. The inner pipeline is a continuous bending pipeline arranged inside the wall thickness of the middle part. The continuous bending pipeline is provided with an inlet and an outlet, and the inlet and the outlet are respectively connected to the two ends of the outer pipeline. At least one first cooling fan is installed on the side cover. The air inlet end of the first cooling fan is arranged in the water cooling box, and the tail of the air inlet end is closed. A plurality of air inlets are arranged on the side wall of the air inlet end, and the plurality of air inlets are arranged around the side wall. The air outlet end of the first cooling fan is arranged outside the water cooling box, and an air outlet is arranged on the air outlet end.

2. The water-cooled electric scooter according to claim 1, characterized in that: The controller and the charging adapter are both circuit boards and components integrated in the water cooling box. The upper top plate and the lower bottom plate are detachably connected to the upper and lower ends of the middle part. A plurality of slide groove groups are provided on the inner wall of the middle part. The slide groove groups include slide grooves relatively arranged on the inner walls on both sides of the middle part. The slide grooves extend along the length direction of the middle part and pass through the upper and lower ends of the middle part. A plurality of heat conducting members are slidably arranged between the two opposite slide grooves. The heat conducting members include sliders slidably arranged in the slide grooves on both sides, and a transverse heat conducting plate located between the two sliders. The two ends of the transverse heat conducting plate are detachably connected to the sliders on both sides respectively. The transverse heat conducting plate is used to contact with the circuit board or components for heat conduction.

3. The water-cooled electric scooter according to claim 2, characterized in that: A vertical heat conducting sheet is provided between the heat conducting members adjacent to each other and in the same slide groove group. Both ends of the vertical heat conducting sheet are detachably connected to the heat conducting members on both sides. The vertical heat conducting sheet is used to contact with the circuit board or components for heat conduction.

4. The water-cooled electric scooter according to claim 1, characterized in that: The inner pipeline includes a plurality of long pipeline cavities opened inside the wall thickness of the middle part, the long pipeline cavities extend along the length direction of the middle part and penetrate the upper and lower end surfaces of the middle part, and the long pipeline cavities are arranged and distributed in sequence along the shape contour of the middle part. The upper and lower end surfaces of the middle part are provided with channel grooves to connect two adjacent long pipeline cavities to form a continuous bent pipeline, and the upper top plate and the lower bottom plate are detachably connected to the upper and lower ends of the middle part, and the upper top plate and the lower bottom plate close the notches of the channel grooves on the two end surfaces.

5. The water-cooled electric scooter according to claim 1, characterized in that: The external pipeline is provided with an oil tank for storing coolant. The oil tank and the second water pump are both located above the water cooling box. The oil tank is transparent and visible. The oil tank is arranged on the top of the head frame. A window is provided on the top of the head frame to expose the oil tank. The oil tank is provided with a filling hole and an exhaust valve. The exhaust valve is a one-way valve that limits the gas in the oil tank to flow only from the inside of the oil tank to the outside of the oil tank.

6. The water-cooled electric scooter according to claim 1, characterized in that: The front frame includes left and right upright poles, a front cover and a rear cover. The left and right upright poles are spaced apart to form a space for placing a water cooling box. The front cover and the rear cover are fixed to the front and rear sides of the left and right upright poles. The front cover, the rear cover and the left and right upright poles enclose the second installation cavity. The water cooling box is arranged between the left and right upright poles to divide the second installation cavity into a front inner cavity located in the front part of the water cooling box and a rear inner cavity located in the rear part of the water cooling box. The bottom of the water cooling box is provided with a bottom inner cavity connecting the front inner cavity and the rear inner cavity. The front cover includes a front side surface and left and right side surfaces. The front side surface is provided with a cover arranged opposite to the front side wall of the water cooling box. A first vent is provided, and second vents are provided on the left and right side surfaces, a heat dissipation air path for dissipating heat to the front of the water cooling box is formed between the first vent and the second vent, a second cooling fan located on the front side of the water cooling box is provided in the front inner cavity, an air inlet of the second cooling fan faces the water cooling box, an air outlet of the second cooling fan faces the first vent, and the second vent faces the side of the second cooling fan, a third vent is provided on the rear cover and located on the rear side of the water cooling box, a third cooling fan is provided in the rear inner cavity, an air inlet of the third cooling fan faces the rear side of the water cooling box, and an air outlet of the third cooling fan faces the third vent.

7. The water-cooled electric scooter according to claim 1, characterized in that: Two radiators are arranged on the external circulation pipeline, the first radiator is an air-cooled radiator, an inclined frame for installing the head frame is installed at the front end of the footrest, the first radiator is installed on the inclined frame, the first radiator includes a first heat dissipation pipeline and a fourth heat dissipation fan located on one side of the first heat dissipation pipeline, the first heat dissipation pipeline is connected to the external circulation pipeline, the second radiator is a semiconductor refrigerator, the semiconductor refrigerator includes a second heat dissipation pipeline and a semiconductor refrigeration plate, the second heat dissipation pipeline is connected to the external circulation pipeline, and the second heat dissipation pipeline is located on the cold side of the semiconductor refrigeration plate.

8. The water-cooled electric scooter according to claim 7, characterized in that: The semiconductor refrigerator is located on one side of the battery installation box, and a battery protection plate is installed on the other side of the battery installation box. The hot surface of the semiconductor refrigerator and the battery protection plate are respectively attached to the inner sides of the left and right side walls of the pedal part. Side covers are installed on the left and right side walls of the pedal part, and a ventilation duct that runs through the side cover and the side wall of the pedal part is provided between the side cover and the side wall of the pedal part.

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