Content of the utility model
An object of the utility model is to provide a fuel cell tractor, rationally distributed, control stability is strong, energy-conserving high-efficient, safe and reliable, and the noise is little.
To this end, the utility model discloses a following technical scheme: the utility model discloses a following technical scheme.
The utility model provides a fuel cell tractor, includes:
The frame includes the longeron, the frame includes the longeron.
The driver's cabin sets up in the end of frame, and the driver's cabin is provided with the cabin, the cabin is located the lower part of driver's cabin.
A fuel cell system comprising: a fuel cell system.
A plurality of fuel cells, a plurality of the fuel cell sets up in the cabin, and be located the inboard of frame.
The hydrogen supply system comprises a plurality of hydrogen bottles and hydrogen management systems, wherein a plurality of hydrogen bottles are arranged on the upper side of the longitudinal beam and close to the cab.
Heat radiation system. The heat dissipation system sets up in the outside of frame, and is close to the cabin.
Driving motor assembly sets up in the inboard of frame, and is located the below of driver's cabin, drive motor assembly's one side is close to fuel cell, and the other side is close to the heat dissipation system. and
A plurality of power batteries are arranged on the outer side of the frame, and the power battery is close to one side of the heat dissipation system away from the cabin.
As a preferred structure of the utility model, the fuel cell is provided with two, and the two fuel cells work in parallel.
As a preferred structure of the utility model, the power of the fuel cell is kilowatt.
As a preferred structure of the utility model, the hydrogen supply system comprises eight hydrogen bottles, and the eight hydrogen bottles are arranged in four layers in the height direction perpendicular to the longitudinal beam.
As a preferred structure of the utility model, the hydrogen bottle adopts an aluminum inner container fiber winding bottle.
As a preferred structure of the utility model, the power battery adopts an air-cooled lithium iron phosphate battery.
As a preferred structure of the utility model, the utility model further comprises a pedaling ladder which is arranged at the outer side of the power battery.
As a preferred structure of the utility model, the fuel cell system further comprises an intake and exhaust system which is arranged on the side of the hydrogen supply system and is close to the cab.
As a preferred structure of the utility model, when the power of the fuel cell system does not meet the power demand of the driving motor assembly, the power battery can output power to the driving motor assembly.
As a preferred structure of the utility model, when the power of the fuel cell system is greater than the power demand of the driving motor assembly, the fuel cell system can charge the power battery.
The fuel cell tractor provided by the utility model has the beneficial effects that the fuel cell is arranged in the cabin and located at the inner side of the frame, the arrangement space of the fuel cell is ensured by the cabin, the collision safety of the fuel cell is improved, and the working noise of the fuel cell is effectively reduced. The arrangement gravity position of the fuel cell and the heat dissipation system is low, and the control stability of the whole vehicle is improved. The driving motor assembly is arranged on the inner side of the frame, and is close to the fuel cell and the heat dissipation system.
Mode of execution
The present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely used to explain the present invention, and not to limit the present invention. In addition, it is to be noted that, for convenience of description, only a part related to the present invention, rather than all structures, is shown in the drawings.
In the description of the present disclosure, unless expressly stated and defined otherwise, the terms' connected, '' connected, '' fixed, 'and' fixed ' are to be construed broadly, and may be, for example, fixedly connected, removable, or integral. The utility model can be a mechanical connection or an electric connection. The utility model can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of the two elements or the interaction relation of the two elements. It will be understood by those skilled in the art that the specific meanings of the above terms in the present invention may be specifically understood.
In the present invention, first features are in direct contact with the features second and first unless otherwise specified and defined, and may include second and first second features not being in direct contact but by additional features therebetween. Also, first features above second features. 'Upper' and 'upper' include first features being above second and obliquely above, or merely representing first features horizontal height above second features. The first Features below second features' below ',' below 'and' below ' include first features being below second and below and obliquely, or simply representing first features horizontal height less than second features.
In the description of the present embodiment, the terms' upper ',' lower ',' left ',' right ', and the like are based on the orientation or positional relationship shown in the drawings and are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, are constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. In addition, the terms '1st' and '2nd' are merely used for distinguishing on the description, and have no specific meanings.
As shown 1 - and 2, the embodiment of the utility model provides a fuel cell tractor, including frame 1, driver's cabin 2, fuel cell system 3, drive motor assembly 4 and a plurality of power batteries 5. The frame 1 comprises two longitudinal beams, and the two longitudinal beams are arranged in parallel. The cab 2 is provided at an end of the frame 1, the cab 2 is provided with a nacelle 21, and the nacelle 21 is located at a lower portion of the cab 2. The fuel cell system 3 includes a plurality of fuel cells 31, a hydrogen supply system 32, and a heat dissipation system 33. A plurality of fuel cells 31 are disposed within the nacelle 21 and located inside the frame 1. The nacelle 21 ensures an arrangement space of the fuel cell 31, the cab 2 wraps the nacelle 21, improves the collision safety of the fuel cell 31, and effectively reduces the operating noise of the fuel cell 31. The fuel cell 31 and the heat dissipation system 33 are low in gravity center position, and the control stability of the whole vehicle is improved. The hydrogen supply system 32 includes a plurality of hydrogen bottles 321 and hydrogen management systems, and a plurality of hydrogen bottles 321 are provided on the upper side of the stringer and close to the cab 2. The hydrogen management system can meet the vehicle condition requirements of the fuel cell tractor. The hydrogen supply efficiency of the hydrogen bottle 321 to the fuel cell 31 is controlled. The heat dissipation system 33 is disposed outside the frame 1 and adjacent to the nacelle 21. The driving motor assembly 4 is disposed inside the frame 1, one side of the driving motor assembly 4 approaches the fuel cell 31, and the other side is adjacent to the heat dissipation system 33. The drive motor assembly 4 receives electric power delivered by the fuel cell 31 and the power battery 5, and drives the entire vehicle to travel. , The driving motor assembly 4 comprises a motor 41 and a transmission 42, the motor 41 adopts a permanent magnet synchronous motor, and is simple in structure, reliable in operation and low in cost. The driving motor assembly 4 is disposed inside the frame 1. And close to fuel cell 31, compact structure saves the piping cost. A plurality of power cells 5 are provided outside the frame 1, and the power battery 5 is located adjacent to the heat dissipation system 33 away from the nacelle 21. The whole vehicle of the fuel cell tractor is powered by the fuel cell system 3 and the power battery 5 in combination, is controlled by the control system 7, does not discharge pollutants, and is energy-saving and efficient. Safe and reliable. The cooling system 33 is positioned between the driving motor assembly 4 and the plurality of power batteries 5, so that the driving motor assembly 4 and the plurality of power batteries 5 are conveniently dissipated, and the safety is high.
Further, the fuel cell 31 is provided with two, and two fuel cells 31 are operated in parallel. The power of the fuel cell 31 is 50 kilowatts, two fuel cells 31 are connected in parallel to form a functional module, power generation is carried out through chemical reaction, and control is convenient. The arrangement is simple. 50 Kilowatt fuel cell 31's production technology is mature, and the market application of current stage is reliable, is applicable to the tractor of heavy load, high power.
Further, the hydrogen supply system 32 includes eight hydrogen bottles 321, and eight hydrogen bottles 321 are arranged in four layers in a height direction perpendicular to the longitudinal member. The eight hydrogen bottles 321 are arranged in four layers in the height direction perpendicular to the longitudinal member and located in the middle of the frame 1 close to the driver's cab 2. The occupied area is small, the center of gravity of the whole vehicle is reduced, and the control stability of the whole vehicle is improved. The hydrogen bottle 321 uses III type bottles (aluminum liner fiber winding bottles), eight hydrogen bottles 321 to store 35 mpa compressed hydrogen gas, and continuously supply high purity hydrogen gas with a certain pressure and flow to the fuel cell 31. The hydrogen bottle 321 is a fuel cell 31 which is high in hydrogen filling speed, the driving performance of the fuel cell tractor can be greatly improved, and the vehicle utilization rate is improved. The hydrogen bottle 321 adopts III type bottles, and in the starting and stopping and driving process of the fuel cell tractor, the hydrogen supply system 32 can dynamically and rapidly respond to timely supply and interrupt hydrogen. Can adapt to adverse circumstances (such as low temperature), the duration of vehicle is strong, with low costs, the security is high.
Further, the power battery 5 employs an air-cooled lithium iron phosphate battery. The air-cooled lithium iron phosphate battery has high working voltage. The utility model has the advantages of high energy density, long cycle life, good safety performance, small self-discharge rate and no memory effect, and 1 can be charged and discharged in a limited arrangement space on the frame 125 kw.
Further, the tractor further comprises a pedaling ladder 6, and the pedaling ladder 6 is arranged on the outer side of the power battery 5. An operator can climb the upper frame 6 through the pedaling ladder 1, thereby facilitating inspection and maintenance of the system.
Further, the fuel cell system 3 further includes an intake and exhaust system 34, the intake and exhaust system 34 being disposed on the side of the hydrogen supply system 32 and adjacent to the cab 2. The intake and exhaust system 34 provides the fuel cell 31 with clean air with appropriate flow, temperature, pressure, and humidity to ensure normal operation of the fuel cell 31 and improve the electrical energy conversion efficiency of the fuel cell 31.
Further, when the power of the fuel cell system 3 does not meet the power demand of the driving motor assembly 4, the power battery 5 can power the driving motor assembly 4. When the fuel cell tractor is in a starting and accelerating phase, the power of the fuel cell system 3 does not meet the power requirement of the driving motor assembly 4, and the power battery 5 can provide the compensating power to power the driving motor assembly 4 to ensure the normal operation of the driving motor assembly 4.
Further, when the power of the fuel cell system 3 is greater than that of the drive motor assembly 4, the fuel cell system 3 can charge the power battery 5. When the power of the fuel cell system 3 is greater than the power demand of the drive motor assembly 4 when the fuel cell tractor is in a deceleration, constant speed, and idle phase, the fuel cell system 3 can charge the power battery 5. When the fuel cell system 3 or the hydrogen management system fails, the fuel cell tractor may travel in a pure electric mode.
It is obvious that the above-mentioned embodiments of the present invention are merely examples of the present invention for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Various obvious changes, readjustment and substitutions can be made to those of ordinary skill in the art without departing from the scope of the present invention. It is not necessary here to exhaustively enumerate all of the embodiments. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.
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