52results about How to "Reduced curb weight" patented technology

The invention relates to an apparatus for heating a power battery under a low temperature condition. The apparatus comprises a power battery cooling liquid plate, a solid-liquid phase change heat storage device, a temperature control module and a flow control module. The heating apparatus heating the power battery under the low temperature condition includes the power battery cooling liquid plate,a pipeline, a three-way valve, the solid-liquid phase change heat storage device, a temperature sensor and a water pump. The device recovers a part of waste heat dissipated by the power battery through utilizing the phase change latent heat of a phase change material during normal working of the power battery, and stores the waste heat in the phase change material. When the power battery needs tobe preheated under the low temperature condition, the heat stored in the phase change material can be transferred to the power battery through a cooling liquid to make the temperature of the power battery reach a normal working temperature. The device has the advantages of simple structure, high safety and reliability, and easiness in realization in a power battery thermal management system.

The invention discloses a new energy automobile low-voltage power supply system. According to the new energy automobile low-voltage power supply system, a new energy automobile is provided with a battery pack taken as a power energy source, two poles of the battery pack are connected with a battery management system, the battery management system is provided with a slow charging interface connected with a battery charger and a quick charging interface connected with direct current quick charging equipment, the two poles of the battery pack are connected with the input end of a DCDC (Direct Current Direct Current Converter), the low-voltage output end of the DCDC is directly connected with vehicle-mounted electrical devices, a DCDC fuse cutout and a DCDC relay are connected in series between the positive pole of the battery pack and the DCDC, and a relay control interface of the battery management system is connected with an input end circuit of the DCDC relay. By means of the new energy automobile low-voltage power supply system, low-voltage power supply is solved, the full vehicle cost is reduced, and the problems of too low battery pack electric quantity and battery overdischarging in the DCDC continuous power supply process are also solved.

The invention discloses a body structure of a full-bearing coach, relates to a coach and provides the body structure of the full-bearing coach, which can improve rollover safety of a vehicle and improve the utilization rate of internal space of the vehicle. The body structure comprises a skeleton, a top cover, a side coaming, floors, windows, a safety skylight and seats, wherein the top cover is arranged at the top of the skeleton; the side coaming is arranged around the skeleton; the floors are arranged at the bottom of the skeleton; the windows are arranged on the lateral surfaces of the skeleton; the safety skylight is arranged on the top cover. The body structure is characterized in that the skeleton adopts an integrated frame structure; the skeleton is provided with transverse ring frames distributed at intervals in the longitudinal direction; an independent passenger region is formed between each two transverse ring frames; the seats in each passenger region are oppositely arranged; a transverse passage is arranged in each passenger region; a passenger get-on and get-off door is arranged on the lateral surface of each passenger region; the region at the lower part of the rear end of the skeleton is an installing bin of an engine, an air conditioning compressor and a muffler; a water tank air inlet and an air conditioning air-inlet grille are arranged on the side coaming at the rear part of the skeleton; an air outlet is formed in a rear coaming of the skeleton; the front part of the skeleton is a driving region.

The invention relates to a dump truck frame with functions of an auxiliary frame, which is not only provided with components required by an ordinary truck frame, but also is provided with major components of the auxiliary frame of the dump truck. A left longitudinal beam and a right longitudinal beam of the frame are respectively riveted with a slot type reinforcing beam with different cross sections, a turning shaft reinforcing plate, a container turning shaft sleeve and the like; the inner sides with a hydraulic cylinder are respectively riveted with a slot type hydraulic cylinder bracket reinforcing plate, and the inner sides of the left hydraulic cylinder bracket reinforcing plate and the right hydraulic cylinder bracket reinforcing plate are welded with a hydraulic cylinder bracket; and the left longitudinal beam and the right longitudinal beam of the frame are sequentially riveted with all components of the truck frame from the front part to the rear part. By adopting the structure, no auxiliary frame is needed, the functions of the ordinary truck frame can be realized and the functions of the auxiliary frame of the dump truck can be provided, the material consumption can bereduced and the overall mass of the whole truck can be improved, and thus the production cost can be decreased. The dump truck frame can be widely applied on dump trucks, in particular medium-sized and light dump trucks.

The invention provides a horizontally pushing type dumper, which can move loaded cargoes backward as a whole to realize unloading. The horizontally pushing type dumper comprises a flat bottom type carriage; the flat bottom type carriage comprises a front breast board, a left side breast board, a right side breast board, a bottom board, front stand columns and rear stand columns; the carriage is internally provided with a push board which is in parallel to the front breast board; the left side breast board, the right side breast board and the bottom board are provided with longitudinal slideways or slide rails; correspondingly, the push board is provided with slide blocks or slide grooves; the left side breast board, the right side breast board and the bottom board form a movable pair with the push board; the push board can move backward and forward along the carriage under the drive of a push board driving device; when the cargoes are unloaded, the push board moves backward; and after the cargoes are unloaded, the push board moves forward to reset. According to the invention, when the cargoes are unloaded, the horizontally pushing type dumper does not need to lift the carriage and can unload the cargoes in the carriage completely only by moving the push board backward; unloading through tipping the carriage is changed to the unloading through horizontal movement, thereby promoting the cargo capacity and the vehicle stability and meanwhile reducing the probabilities that a vehicle frame suffers permanent deformation, and snap of welded joints happens in the carriage and an auxiliary frame.

The invention provides a dump truck frame with alien-shaped longitudinal beams and a sub-frame function, wherein the front section of the left longitudinal beam of the frame has an L-shaped cross section, the rear section has a Z-shaped cross section, and a rectangular notch is cut in the rear upper part; the cross section of the L-shaped front section has a small height and a small size, the cross section of the Z-shaped rear section has a large height and a large size, and a transition section is arranged in the middle of the left longitudinal beam; and the right longitudinal beam and the left longitudinal beam are symmetrical. The dump truck frame with the alien-shaped longitudinal beams and the sub-frame function can give play to functions of a common truck frame and a dump truck sub-frame, so that no sub-frame is needed when a dump truck with the structure is used, consumption of materials can be reduced, and whole-truck curb weight can be reduced. In this way, production cost can be reduced, and economical efficiency of use is greatly improved. In addition, components such as a hydraulic oil cylinder support horizontal beam used for container lifting and an oil tank bearing horizontal beam can be connected and installed more conveniently. The dump truck frame with alien-shaped longitudinal beams and the sub-frame function can be widely applied in the damp trucks.

The invention relates to an automatic driving truck without a cab and an automatic driving control method, and belongs to the field of transportation trucks. The problems of realizing vehicle loadingcapacity increasing during unmanned driving and realizing automatic control during driving of a truck in a transportation truck in the prior art are solved. An automatic driving special vehicle of theautomatic driving truck without the cab and the automatic driving control method comprises a traditional chassis component, an intelligent steering system, an intelligent braking system, an intelligent control system, a power battery system, and assemblies such as a loading compartment, the cab is removed, a steering wheel, a steering column and the like are removed, only the compartment is on the upper wing surface of a chassis. According to the automatic driving truck without the cab and the automatic driving control method, all function keys in the original cab are electrified, intelligentized, and controlled by the intelligent control system; the unmanned driving of the special truck is realized, the curb weight of the whole vehicle is decreased, and the vehicle loading weight of thewhole vehicle is increased.

One kind of low temperature instills into the type natural gas transport vehicle, involves the natural gas low temperature pot type transport vehicle. The technology includes the storage tank, the storage tank including tinplate lining and outside the pot, tinplate lining and outside the pot and the frame are made by the aluminum alloy material, in on the shell of tank is equipped with the ring-like scoop channel in, outside the pot inside lies in on the shell of tank the ring-like scoop channel correspondence place to be equipped with strengthens the circle; Between two pots is equipped with the heat insulation strut, tinplate lining and outside between pot for vacuum structure. The container frame angle uses the steel aluminum mix angle.

The invention discloses a speed reduction type hub driving system with a function of power shock absorption. Power is outputted to a primary speed-reduction small cylindrical gear by a motor through a motor output shaft, the primary speed-reduction small cylindrical gear is meshed with a primary speed-reduction large cylindrical gear to transmit power, the primary speed-reduction large cylindrical gear is fixedly connected with a secondary speed-reduction small bevel gear, the central axis of the primary speed-reduction large cylindrical gear and the central axis of the secondary speed-reduction small bevel gear are coaxial, the secondary speed-reduction small bevel gear is meshed with a secondary speed-reduction large bevel gear to output power to a half shaft, an external spline is arranged on the half shaft at a section extending into a hub, and power is transmitted to a rim through the hub. The motor is suspended to a speed reduction box, a knuckle and a guide sleeve through a power shock absorber damping element and a power shock absorber elastic element, wherein the speed reduction box, the knuckle and the guide sleeve are connected together. The motor further serves as a power shock absorber mass besides outputting power, and vertical performance of a vehicle can be improved by properly adjusting parameters of the power shock absorber damping element and the power shock absorber elastic element. The speed reduction type hub driving system has the advantages that the motor weight is converted from unsprung weight into power shock absorber weight, and the speed reduction type hub driving system is low in production cost, high in transmission efficiency and beneficial to development of advantages of the high-speed motor which is high in power and power intensity.

The invention provides an anti-leakage bulletproof oil tank comprising an oil tank body and an oil sucking pipe mechanism. The oil tank body comprises an anti-corrosion coating, a forming metal layer, a first foam metal buffer layer, a rubber layer, a first fireproof layer, an inner steel sheet layer, a second foam metal buffer layer, a fiber fabric bulletproof layer and an outer steel sheet layer which are arranged in sequence from inside to outside. The oil sucking pipe mechanism comprises an oil sucking pipe and a sealing cover body protruding out of the outer surface of the oil tank body, an opened metal cylinder extending into the oil tank body is arranged inside the sealing cover body, and the outer side of the sealing cover body is provided with a heat dissipation mechanism. The anti-leakage bulletproof oil tank is good in bulletproof performance, the lightweight requirements of vehicles are met, oil and gas leakage and oil tank explosion can be effectively prevented, and the reliability is greatly improved.

The invention discloses a low-floor chassis platform integrating a hub motor. The low-floor chassis platform comprises a lower vehicle body, a low-voltage control element, a wheel assembly, Macphersonsuspensions, a multi-connecting rod and a transverse leaf spring independent suspension, wherein a front suspension and a rear suspension of the lower vehicle body are independently controlled, and atransmission shaft and a differential mechanism are not arranged between the front suspension and the rear suspension; the Macpherson suspensions are arranged on the front suspension of the lower vehicle body, and a transverse stabilizer rod is installed to be matched with the Macpherson suspensions; the transverse stabilizer rod spans between the Macpherson suspensions on wheels on the two sidesof the front suspension; the wheel edges of the front suspension integrate a traditional caliper and a disc brake; the front part of the lower vehicle body is a chassis platform front cabin space forintegrating and installing the low-voltage control element; and the middle rear part comprises a high-voltage control element. According to the low-floor chassis platform, the weight of the whole platform is effectively reduced, the height of a chassis is reduced, the weight of a whole vehicle is effectively reduced, the system efficiency is improved, the loading volume is increased, the loadingratio of the whole vehicle is improved, meanwhile, better bearing capacity can be obtained, and the expansion performance is high.

The invention discloses a high-pressure fine water mist fire vehicle. The high-pressure fine water mist fire vehicle comprises a motor vehicle driven by an engine, wherein the motor vehicle comprises a vehicle head, a driving cab and a rear cargo compartment; the engine is mounted in the vehicle head; the high-pressure fine water mist fire vehicle is characterized in that the vehicle head of the motor vehicle is provided with a high-pressure water pump and an electromagnetic clutch; a driving shaft of the engine is connected with a driving plate of the high-pressure water pump by virtue of the electromagnetic clutch in a transmission manner; a water tank, a bubble chamber, a hose reel and a fine water mist spraying gun are mounted in the rear cargo compartment; the water tank and the bubble chamber are respectively connected with a water inlet of the high-pressure water pump by virtue of a water inlet pipe; a water outlet of the high-pressure water pump is connected with a water inlet of the hose reel by virtue of a water discharging pipe; a water outlet of the hose reel is connected with the fine water mist spraying gun. The high-pressure fine water mist fire vehicle is suitable for the road conditions and the environment of countrysides and mountainous areas, and is high in water storage capacity; the water gun is high in working pressure and long in shot range, and is capable of quickly extinguishing the fire and can be used for extinguish various fire disasters.

The invention discloses a vehicle balance suspension assembly structure. A vehicle frame is used as a carrying body of a suspension system; the two ends of a steel plate spring are fixed on the upperend of a vehicle axle through a bridge passing end assembly; a balance shaft up-mounted structure is used; the steel plate spring is arranged at the lower end of a balance shaft case; under the condition that the height distance between the vehicle axle and the vehicle frame, the dimension and the weight of the balance shaft support seat can reach the optimum state; the whole equipment weight is reduced; meanwhile, during the load bearing, the weight is transmitted to the balancing shaft case by the vehicle frame, and is then transmitted to the steel plate spring and the vehicle axle; the fixed connection stress condition between the balance shaft case and the steel plate spring is reduced; the influence by the load bearing weight is avoided; the reliability is greatly improved; the service life is prolonged. The device uses the shaft end assembly of the balance shaft to rotationally connect the steel plate spring and the vehicle frame; the self adaptation capability of the conventional balance suspension to the uneven pavement is realized; the relative rotation height between the two vehicle axles is increased; the vehicle balance suspension assembly structure can adapt to complicated off-roads; the structure is simple; the weight is light; the universalization degree is high.

The invention discloses a speed-reducing wheel-rim driving system using a motor as a power vibration absorber. The power is outputted to a small bevel gear by the output shaft of the motor; the small bevel gear is meshed with a large bevel gear, the power is outputted to a semiaxis by the large bevel gear; the section of the semiaxis, which extends into a wheel hub, is provided with an external spline; and the power is transferred to a wheel rim by the wheel hub; the wheel hub, the wheel rim and a rotating element of a braking system are fixedly connected and rotate together; the output shaft of the motor matches with the small bevel gear to transfer power; and the output shaft of the motor slides along the axis of the small bevel gear. The motor is suspended on the wheel, and the motor mass is transferred into the power vibration absorber mass from the unsprung mass. The speed reducing wheel rim driving system has low manufacturing cost and high transmission efficiency and is beneficial to exerting the advantages of high efficiency and large power density of the high-speed motor.

The invention discloses a novel low-voltage power supply system for a new energy vehicle, comprising a high-voltage battery pack, wherein the high-voltage battery pack is composed of a plurality of battery cells connected in series and in parallel; two ends of battery cells connected in series are led out of a low-voltage power supply interface; and the low-voltage power supply interface is connected with an electric appliance through a fuse. The invention has the advantages that: 1, the cost of the whole vehicle is reduced, the cost of the DCDC controller and the battery unit and the peripheral auxiliary wire harness are saved; 2, that DCDC and the battery are cancel in the whole vehicle, the weight of the whole vehicle decreases, and the endurance of the whole vehicle increase; 3, that available space of the whole vehicle is enlarge.

The invention provides a soft tank for a special sanitation truck. The soft tank comprises a tank body made of soft materials. A water adding opening is formed in the tank body. A ventilation opening is formed in the upper end of the tank body. A water outlet is formed in the lower end of the tank body. A fixing device is composed of multiple sets of tank body lifting binding belts and tank body fixing binding belts, all of which are arranged on the left side and the right side of the tank body. The lower ends of the tank body lifting binding belts are fixed to the tank body. The upper ends of the tank body lifting binding belts are provided with lifting structures for being fixed to the sanitation truck. The upper ends of the tank body fixing binding belts are fixed to the tank body, and the lower ends of the tank body fixing binding belts are provided with fixing structures for being fixed to the sanitation truck. According to the soft tank for the special sanitation truck, due to the fact that the tank body is made of soft materials low in density and resistant to corrosion, and the weight of the soft tank body is lowered greatly compared with the weight of a steel tank body, the amount of clear water and waste water loaded and transported by the special sanitation truck in the working process at a time is increased greatly, and the working efficiency of the special sanitation truck is improved.

A heavy-duty four-axle dump truck frame combined structure in an integrated structure comprises a frame and an auxiliary frame. A frame left longitudinal beam is made of beam steel plates in a channel form; the outer side of a front segment of the frame left longitudinal beam and the outer side of a rear segment thereof are in different planes; a frame right longitudinal beam is also made of beam steel plates by pressing and is symmetric to the frame left longitudinal beam. By means of the heavy-duty four-axle dump truck frame combined structure in an integrated structure, not only normal motor truck frame function can be realized, but also dump truck auxiliary frame function can be realized; the frame and the auxiliary frame are integrated into one structure so that less material is used on the premise that adequate strength and stiffness are guaranteed and therefore, the quality of the whole truck is reduced and production cost is reduced; the heavy-duty four-axle dump truck frame combined structure in an integrated structure can be widely applied in heavy-duty four-axle dump trucks due to its economical efficiency.

The invention relates to a paddy field wheeled tractor which comprises a power system assembly, a walking system assembly, a transmission system assembly, a covering part assembly, a steering system assembly, a hydraulic system assembly and a rear working device. The transmission system assembly serves as the basis of the whole tractor. The power system assembly, the walking system assembly, the covering part assembly, the steering system assembly, the hydraulic system assembly and the rear working device are directly or indirectly connected with the transmission system assembly. By optimizingthe structural layout, the front wheel steering angle is increased, the turning radius of the whole machine is reduced, the ground clearance of the whole machine is increased, and the mass of the whole machine is reduced, so that the tractor has good trafficability in a paddy field, and the requirements of the national IV emission standard are met.

The invention provides a bulletproof composite plate and a car. The bulletproof composite plate comprises a first plate body made from a bulletproof steel plate, a second plate body made from ultrahigh molecular weight polyethylene, and a third plate body made from ethylene vinyl acetate copolymer, wherein the first plate body and the second plate body are arranged oppositely; the third plate is arranged between the first plate body and the second plate body; and the first plate body, the second plate body and the third plate body are fixedly connected. The bulletproof composite plate formed by combining the first plate body, the second plate body and the third plate body which are made from three different materials, the bulletproof performance is improved, the weight of the bulletproof composite plate is lowered, the curb weight of the car is lowered, and the fuel oil consumption is reduced.

The invention relates to a bin penetrating structure of cable sealing. The structure is applied into an underwater propulsion motor. When power electricity or a signal is transmitted to a control driver by a power cable or a control cable of the motor, a medium in the motor and a medium in the control driver can be isolated with each other through connecting the power cable or the control cable inthe motor with the power cable or the control cable in the control driver by the structure, namely, a cable sealing structure under the condition of bin penetrating of a cable from a liquid side to an air side is achieved. The structure is simple, is convenient to install and is reliable in sealing and low in cost, the structure is convenient and flexible to install and use, a copper core is usedfor transferring an electric signal or the power electricity, two ends can employ a welding mode, and connection also can be achieved by a wiring terminal as long as a press nut is pressed; and the structure is high in reliability, materials of an insulation sealing sleeve and an insulation sealing cushion employ polytetrafluoroethylene, insulation is ensured after pressing, and meanwhile, the pressure of 20MPa or above can be borne.

The invention provides a tank assembly of a powder materials tanker, which comprises cabins. Each cabin comprises a horizontal cylinder (2) and a vertical conical tube (3). One end of each horizontal cylinder (2) is connected with the corresponding vertical conical tube (2) through an end enclosure (1). The lateral side of each horizontal cylinder (2) is connected with the corresponding vertical conical tube (3) through arc boards (4). The invention further provides the powder materials tanker. According to the technical scheme, each horizontal cylinder is connected with the corresponding conical tube through the arc boards in a communicated manner, and the arc boards are angled to the vertical direction so as to facilitate loading and unloading of materials and reduce residue of the materials. The vertical conical tubes are directly used as fluidizers, so that the volume utilization rate of the tank assembly is increased, the curb weight of the tank assembly is reduced, material sliding speed is increased, and universality of the materials is improved.

The invention discloses an aluminum alloy automotive body skeleton which comprises a frame-type skeleton, wherein the frame-type skeleton comprises a longitudinal beam, a cross beam and an upright beam, which are mutually connected and assembled and are formed by aluminum alloy through extrusion. Compared with the conventional steel structure automotive body, the aluminum alloy automotive body skeleton disclosed by the invention is lower in the weight of the automotive body, so that the complete vehicle kerb mass is reduced, the oil consumption on the dead weight of the automobile is reduced, and the purposes of energy conversation and emission reduction are achieved. Meanwhile, the rigidity of the automotive body is also improved, a load-bearing structure is led to be concentrated on the mutually connected and assembled longitudinal beam, the cross beam and the upright beam, and furthermore, the safety of passengers in the automobile is guaranteed when the automobile is involved in a collision accident.

The invention discloses a hydrogen energy truck arrangement scheme, and relates to the field of automobiles. The scheme comprises a fuel cell reactor, a first fuel cell reactor radiator, a first hydrogen storage bottle, a second hydrogen storage bottle, an air compressor radiator, a storage battery, a power battery, a motor, a motor radiator, a high-voltage distribution box, a motor controller, a charger, a second fuel cell reactor, an air compressor and a DC / DC converter which are distributed on an automobile chassis. The motor is installed on a rear axle of the automobile chassis, and the high-voltage distribution box, the motor controller and the charger are fixedly installed at the tail of the automobile chassis through the same installation frame. Parts of the hydrogen energy system are all arranged on the chassis, the space of a cargo compartment is not occupied, a frame of a hydrogen energy system module does not need to be manufactured, the overall weight of the whole vehicle is reduced, and the cargo carrying weight is improved.

The invention specifically relates to an opening and closing device for passage valves of main and auxiliary combustion chambers of a dimethyl ether engine. Its technical scheme is: the valve cam (1) is installed on the intake or exhaust camshaft, the first flat chassis (2) is in contact with the valve cam (1), and the first cylinder piston rod (3) is in contact with the first flat chassis. (2) Fixed connection, the rodless chamber of the first cylinder (4) communicates with the A port of the corresponding two-position two-way solenoid valve (6) and the rodless chamber of the second cylinder (8) through a three-way pipe joint , the accumulator (5) is connected to the P port of the two-position two-way solenoid valve (6), the two-position two-way solenoid valve (6) is externally connected to the ECU module (7), and one end of the second cylinder piston rod (9) is connected to the first The second flat chassis (10) is fixedly connected, the second cylinder piston rod (9), the second flat chassis (10) and the valve stem (15) are located on the same axis, and the valve stem (15) is sequentially installed with valve lock clips (12 ), upper valve spring seat (11) and return spring (13). The opening and closing device of the channel valve has the characteristics of variable timing and lift, which can reduce curb weight and improve combustion efficiency.

The invention discloses a novel side manhole. The side manhole comprises a side manhole shell, a check block, a manhole cover, a supporting device, a locking device, locating plates, a handle and a sampling device. The side manhole is formed in the lower portion of one side of a milk tank vehicle tank. The same type of milk tank vehicles in domestic is not provided with the novel side manhole. Theside manhole is generally mounted on the top of the milk tank vehicle tank and is called as an upper manhole. Compared with the upper manhole, the side manhole has obvious advantages. After milk is loaded into the tank vehicle, the manhole cover cannot be opened. In this way, other substances cannot be mingled into the milk before the milk tank vehicle tank goes into a milk plant, and the safetyand hygiene of fresh milk are guaranteed. Compared with a manhole located in the top of the tank vehicle, unnecessary additional devices, such as a pedal, are omitted, and the unladen mass of the whole vehicle is effectively reduced. The milk sampling device is further arranged on the side manhole, so that a worker does not need to climb up the top of the tank to conduct sampling in the fresh milkplant. The climbing labor intensity of the worker and the falling risk of the worker are reduced. The situation that the upper manhole is opened and dust falls into the milk is avoided.

The invention provides a flying car, which has the function of four-wheel independent electric drive, and includes a chassis, a wheel propeller assembly installed on the chassis, and an overturning mechanism assembly. The belt brake is used to control the planetary gear mechanism to realize the hub motor to drive the wheel or propeller to rotate. The turning mechanism assembly can be used to turn the wheel propeller assembly vertically or parallel to the ground. When switching between car mode and flight mode, the planet carrier or the wheel can be fixed by controlling the tightening of the brake band of the planet carrier or the ring gear, so that the output power of the hub motor can be transmitted to the wheel or the propeller shaft , to enter car mode or airplane mode. In addition, the propeller blades can be retracted under the action of the return spring, which is convenient to be integrated with the wheels. It can perform in-situ vertical lift and fly smoothly without affecting other vehicles, and at the same time, it can also improve the problem of poor passability of existing vehicles.

The invention discloses a pure electric trash collection vehicle which comprises a vehicle chassis, a cab and a trash collection tank arranged on the vehicle chassis. The vehicle chassis is an electric automobile chassis. A power battery and a drive motor for driving vehicle rear wheels to rotate are arranged at the bottom of the vehicle chassis. A tank body rear door is arranged on the rear portion of the trash collection tank. Tank body side doors capable of being automatically opened are arranged on the two sides of the trash collection tank respectively. The bottom end of the rear portion of the trash collection tank is arranged on the vehicle chassis through a rotating shaft in a rotating mode. An unloading oil cylinder for driving the trash collection tank to turn and rotate around the rotating shaft for unloading is arranged on the vehicle chassis. According to the pure electric trash collection vehicle, the drive motor, the power battery and an electronic control system serve as power, energy conservation and environment protection are better achieved in the use process, the light design method is adopted for the whole vehicle, the curb weight is greatly reduced, and the transportation efficiency is improved. In addition, the sealing structure of the trash collection tank is optimized, the sealing performance is greatly improved, and secondary pollution of trash falling, exposing, leakage and the like is eradicated.

A power system of a new energy vehicle is disclosed, The system is provided with a power system controller, the power system controller comprises a control board integrated in the same housing, A drive plate and a high-pressure plate are formed, the control board outputs a control signal to the driving board through a signal control line, The driving plate outputs a driving signal to a high-pressure plate through a driving control line, the high-pressure plate obtains a feedback signal of the connector and transmits the feedback signal to the driving plate through the driving control line, andthe driving plate transmits the feedback signal to the control plate through the signal control line. The invention simplifies the structure of the high-voltage system of the new energy electric vehicle, effectively saves the high-voltage wiring harness, the controller shell, the controller internal hardware circuit and the chip, etc., and greatly reduces the cost of the new energy electric vehicle. In the whole vehicle research and development, the electric vehicle research and development debugging cycle is shortened, and the research and development cost is reduced.

The invention provides a heat-resistant battery bracket. The heat-resistant battery bracket obtained by laminating, solidifying at a normal temperature and closing a mold for curing treatment adopts a nonmetallic thermosetting composite material to replace a traditional all-metal battery bracket, so that the preparation quality of an automobile is capable of being reduced effectively, environmental protection and energy saving are facilitated, rusting is prevented, the service life is prolonged, the driving safety is ensured, the stability and the heat resistance are good, the rigidity is high and the production cost is capable of being reduced. The heat-resistant battery bracket comprises a bottom plate; in the strip width direction of the bottom plate, the two ends of the bottom plate are connected with a left side plate and a right side plate which are parallel to each other; in the strip length direction of the bottom plate, at one end of the bottom plate, a first baffle plate is connected between the left side plate and the right side plate; at the other end of the bottom plate, a second baffle plate is connected between the left side plate and the right side plate; and the bottom plate, the left side plate, the right side plate, the first baffle plate and the second baffle plate are all thermosetting composite materials. Thus, the invention also provides a machining die of the heat-resistant battery bracket and a preparation method of the heat-resistant battery bracket.