The fire safety of the tandem mobility scooters

Always check the circuit bike docking point, to prevent contact with the contact point is not strong to cause ignition, fever; avoid the aging, wear and tear caused by a short circuit, train electric scooters accident. Electric cars in normal use, failure to choose a professional service organization or person, do not disassemble electrical protection devices to ensure the protection of electrical circuits and equipment in good condition is valid. Electric bicycle battery will run out of flammable gas when charging, so that the charge must not narrow, sealed environment, should be in the outdoors, or remove the battery charge alone. To select the appropriate charging circuit, line laying should be fixed installation, to install short-circuit and leakage protection device.
Electric vehicle charging must be away from flammable items, can not charge too long, long charging time, the charger overheating easily lead to fires, shall be charged in accordance with the instructions when charging time principle, more than 10 hours . When charging, the charger should be placed in a relatively easy to heat the place; if battery electric bicycle inferior quality or prolonged use, the charger is easy to very high temperatures, causing a fire, so can not sleep at night time charging lightly.

In the process of moving electric bike started climbing when the pedal walker should prevent starting current is too large, mechanical overload of work for a long time, causing the motor coils, wires, batteries and governor overheating damage and even lead to disaster . To try to avoid the rain, roads and water to prevent water motor, charging the short circuit fire.
In addition, the purchase of an folding electric bikescar, should be preferred lithium bottle. Its capacity, since less consumption, less pollution, followed by lead-acid batteries dry, seal it, and not leak electrolyte, we must prevent the pollution caused by electrolyte leakage, corrosion and damage. Buy electric car to see the product specification must operate in accordance with the instructions, but also to choose the electric car, charger, motor models, specifications matching battery

Development of battery powered bikes

battery powered bikes industry will be a real sunrise industry, has broad market potential and development space. Here, we say that the history of the main electric bicycles, from the development trajectory and historical opportunities in this industry, we look at the industry's current situation and the future, perhaps we will lay down now uneasy heart Folding electric bikes, Shen progress in this industry! Once again, let us revisit this process is that we put the passion, the passion is still hope that people who can burn dream today, in this stage in the off-season, not lack of Adult tricycle! For the history of the development of China electric bicycle industry is generally accepted as three stages: the initial stage of electric bicycles, the early stages of production scale, speeding the development stage. The initial stage of electric bicycles is also known as an early experimental stage of production of electric bicycles, from the time of speaking, that is, from 1995 to 1999. This stage is the key technology to explore the study of the four pieces of electric bicycles, motor, battery, charger and controller. Research and development mainly in the production of manufacturing enterprises spontaneous aggregation of information, tracking technology, organization market observation, small quantities of the market trial run, but also makes electric bikes began to enter the consumer's perspective, was the gradual recognition to their acceptance. Technically speaking, the early electric bicycles, new battery can only travel about 30 km, short battery life, the maximum output torque of the motor is only 14-18N.M, climbing ability, easy to wear, but also motor there is no tooth brush motors.

How to increase the service life of the electric car ?

First: Avoid large current discharge .battery electric bicycle at the start , uphill , use pedal power to avoid large current discharge . Easily lead to large-current discharge of lead sulfate crystals , to the detriment of the physical properties of the battery plates .
Second: the periodic inspection . If electric cars to continue the mileage suddenly dropped a dozen kilometers in a short time , it is likely that the battery pack has at least one battery has broken grid, plate soften electrode active material shedding phenomenon. At this point , should go to a professional agency to check battery repair , repair, or with a group . This can extend the life of the battery pack relative to maximize savings.
Third: the right to use the charging time. General electric car batteries are charging at night , the average charging time of about 8 hours . Battery to recharge a battery depth of discharge best 60 % -70%.
Fourth: loss of power when the store is strictly prohibited . Loss of electricity stored in the battery status , lead sulfate crystals attached to the plates , blocking the electric ion channels , resulting in insufficient charging , the battery capacity decreases. Loss of power idle state longer , more serious damage to the battery . Therefore, the battery idle , power should be added once a month , so that the battery can better maintain a healthy state .

The frame is composed of what Folding electric bikes

Most iron frame , but the frame is divided into iron in the iron added to the other extreme frame chrome molybdenum Folding electric bikes steel, high strength steel , ordinary steel , etc. , after adding the other ingredients , for example can be made thinner pipe, makes the frame lighter overall . Recently, on the basis of the intensity is not reduced , there has been used a frame material other than iron , such as aluminum. Bicycle electric trike race to have carbon fiber material using titanium frame .

Lighting,Electric folding Bikes

Lamps, lighting and instrumentation section is to provide a combination of electric vehicle display unit status . Instruments generally provide battery voltage display , vehicle speed display , riding status display, lighting status display. Intelligent instrument also displays fault Folding electric bikes the vehicle 's electrical components .
Common structure
Most electric bikes are using a hub motor direct drive front or rear wheel rotation . These wheel motor according to different output speeds , respectively, and with different wheel diameter wheels to drive the vehicle traveling at speeds up to 20km / h. Although these electric car styling and installation location of the battery varies, but the drive and control the presence of Three wheel bikes principles . Such electric bikes are electric vehicles mainstream .
Specially constructed electric bicycle
A small amount of electric vehicles using non- motor -driven wheel . These electric vehicles using side-mount or cylindrical motors, mid-mounted motor, tire friction motor . Generally use this motor -driven electric vehicles, which will be lower vehicle weight , the motor efficiency is lower than the hub -style efficiency. In the case of the same battery energy , the use of these motor vehicles are generally shorter than the 5% -10 % - wheel vehicle continues the course .

Power Folding electric bikes

When the electric power sensor in the power state is a Cargo bike speed signal, the step back riding pedal force detection means . The controller according to electric drive power to achieve human and automatically Folding electric bikes the power , electric cars driven by rotation .

Electric Tricycle lead-acid batteries

Has more than 100 years of history , because it is stable performance , easy to control the production process , low cost , battery power is used in most domestic and foreign manufacturers . Electric tricycle tube lead-acid batteries in the domestic audience as more of a product , because of its powerful, long life, high cost , more and more consumers. To better understand the tube lead-acid batteries , the article on the return of a number of electric tricycle with a tube of lead-acid batteries were Cargo bike , summarizes the common problems returning faulty battery , and its entry launched a major adverse analysis, the final proposed the use of tubular lead-acid battery maintenance instructions. Two lead-acid battery negative phenomena through the collection of a few months to return the battery to extract the failure of which 500 cells were detected and analyzed, based on the reasons for poor battery , its Folding electric bikes for the statistics, the results are shown in Table 1. 2.1 negative anatomy of lead paste expansion off the battery , there is 204 battery negative lead paste partial or complete expansion of a small part has come off . Lead paste expansion was part of the soft pulpy, and corrosion layer grid connection is poor, it is easy to fall off. This phenomenon will cause the battery capacity fade and fall off the lead paste may cause a short circuit within the battery .

Important equipment for Battery powered bikes communications

Is an important communication vehicle mobile communications equipment , its mobility, strong , quick and easy Folding electric bikes , which depends mainly on the chemical supply during the move , pan past the power supply of nickel alkaline batteries , alkaline batteries at the factory nickel- pot , usually without electrolyte factory , to use the unit , you must be formulated or purchase an alkaline electrolyte and perfusion , soaking , activation, after charging people to vote using these preparations are complex and cumbersome , and the technical strength of each unit the difference is large , strong technical force trained units capable of the work , technical weakness of the unit it is difficult to complete the work . After careful demonstration and testing , will be the original alkaline batteries instead of nickel Cargo bike VRLA batteries. VRLAB reasonable structure, tight fitting , good resistance to shock and vibration performance, small size , in the case of the proper use of non- acidic gas spill , inexpensive, can satisfy the work requirements in-vehicle equipment , suitable as a vehicle power supply . But any chemical power is perfect , after a period of use has also exposed some of the problems affecting the normal use of communication devices and communication liaison smooth. Electric field on the sand v. World hurried life as beads i S p brick Wei Zhen Physical Chemistry 2 Symptom Symptom power , communication vehicle has a variety of power supply .

The service life of the electric tricycle

1, the electric bicycle before use should adjust the height of the saddle and handlebar, to ensure the comfort of riding, relieve fatigue. Saddle and handlebar height should vary from person to person, usually the height of the saddle for the rider to reliable landing on one foot for appropriate (the vehicle should be the basic upright), the height of the handlebars to rider forearm flat, shoulder and arm Cargo bike as appropriate. But the adjustment of the saddle and handlebar should first ensure tube and the insertion depth must be higher than the safety sign of the stand pipe line.
2, electric bicycle before use should check and adjust the brake before and after. Before the brake controlled by the right brake, the rear brake is controlled by the left brake. About brake Folding electric bikes and after the adjustment to the brake handle their half of the trip to reliable braking is suitable; Brake skin excessive wear, to timely replacement.
3, electric bicycle before shall check the firmness of the chain. Chain too tight pedal bike in arduous, too loose is easy to vibrate, brush touch other parts. Chain of sag is suitable for 1 to 2 mm, usually don't have to pedal cycling can tighten appropriately. Chain adjustment, loosen the rear nut first, through the uniform precession spin out around the chain screw, adjust the chain firmness, retighten good rear wheel nut.
4, electric bicycle before use should check the lubrication condition of the chain. Handle and observe whether chain chain axis rotation is flexible, link corrosion is serious. If corrosion or rotation is not flexible, should include a moderate amount of lubricating oil, serious should replace the chain.
Before 5, electric bicycle riding, should check the tire pressure, handlebar front and rear wheels steering flexibility, rotational flexibility, circuit, battery power, motor working condition and lights, horn, fasteners, such as whether meet the requirements.

Crankworx let mountain dream fly

Crankworx let mountain dream fly
Canadian whistler mountain bike park in mountain fans who have a name, not only because it has a stimulating and Three wheel bikes the downhill mountain and non-stick secular and discharge of the pure natural beauty, but also because it mountain sports atmosphere and comfortable, the mountain fans have the feeling of guests feel at home. Whenever the weekend of whistler mountain bike and mountain bike enthusiasts everywhere in the mountain forest in the park. But this park is one of the most famous once every year Crank potassium orx events. This includes four game: professional track downhill race, four-wheel drive, downhill race and JiQiaoSai cliffs cliffs endurance. One of the most famous is skill in slope. The race started, just a ordinary cycling mountain bike Folding electric bikes manufacturers sponsor, but in recent years, it has gradually developed into a mountain bike race of concern to interested parties. For events, not only around the mountain fans flocked to them, but also with great interest the residents around to watch the game, even in Canada, visitors can also traveled, and it buzzes. So, now it is no longer a simple sense of the events, and more like a happy holiday. Crankworx professional downhill race track is in whistler's take pride in A road on the Line

The gear dynamic and static performance analysis and structure optimization

Gear pump has the distinctive Cargo bike of simple structure, easy manufacture, small size, long life, low purchase price, strong self-priming capacity, high operating reliability, low sensitivity to the oil, more convenient to maintain. At the same time, due to the structure characteristics of the gear pump is symmetrical, so it can realize high speed rotation. These advantages make the external gear pump is widely used in mining equipment, metallurgical equipment, construction machinery, machine tool equipment, Folding electric bikes industries such as shipbuilding and all kinds of engineering and agricultural machinery. In addition, the gear pump in the hydraulic transmission system and lubrication system is widely applied. But its structure of the gear pump has also led to the trapped oil phenomenon, it with non-uniform flow, good flow ripple, high working noise and emissions do not adjust the shortcomings. In this paper the flow pulsation of the pump and the pump body burst failure to carry out the research, and obtained some research results. Paper first starts with the basic theory, the formula of flow pulsation of external gear pump is derived, the gear pump flow pulsation theoretically under the influence of which parameters as well as the relationship between these parameters. Then using FLUENT fluid analysis software, based on dynamic grid, on the basis of the internal flow field of the gear pump are analyzed in numerical simulation, get the internal gear pump pressure field and velocity field, the analysis of the internal gear pump leak and trapped oil phenomenon, through the simulation test under different rotational speed, the gear pump.

Military motorcycles

Of the 1890 s to the early 20th century, motorcycles, thanks to the new inventions and new techniques, such as inflatable rubber tires, ball bearings, clutch and transmission, front suspension shock absorber system, spring seat, etc., makes the motorcycle has practical value, the mass production in the factory, become a commodity, this is the second generation of motorcycle, called goods generation of motorcycle. Such as 1912, the United States Harley - 8 X type a single-cylinder motorcycle production. Was still not solve the transmission and transmission system, but with the belt drive attached to the rear of the pulley, after the brake is pulled through the handle brake lining to brake. Did not solve the problem of suspension after, before the shock has attached to the front fork of the ring shell simple suspension device. After the 1930 s, with the continuous progress of science and technology, motorcycle production and after the suspension shock Folding electric bikes system, the mechanical ignition system, drum brakes, chain transmission machinery, such as, making motorcycles and reached the new stage, motorcycle gradually mature, widely used in transportation, competition, and military. This is the third stage, Three wheel bikes stage in motorcycle. In 1936, the United States, harry company has been able to produce higher levels of motorcycle. The car with 1000 ml, OHV, 27.93 kW, v-shaped two-cylinder engine, a top speed of 150 km/h. Development layers as the steps of the motorcycle, more up, more advanced. Original motorcycle in 1885 on the first floor of the ground, the second layer is the world's first production of motorcycle, it's 1894 German two cylinder four stroke engines motorized bicycles, produced a total of 1000 vehicles. The third layer is popular in the '1930 s race motorcycles, the motorcycle has practical function. The fourth floor is the modern luxury motorcycle after the 1970 s. Not only shows the four stages of the development of the motorcycle, also configure the four phases of the different costume driver.

Folding bicycles, the choose and buy

Folding bicycles to choose 3: hand weigh. From the electric trike material, mainly include the aluminum and steel. Millet, you often need to carry the car up and down building, it is recommended that you choose the product, aluminum frame, such a car in 10 kilograms, mostly 20-inch generally do not more than 12.5 kg. Is not only light weight, and aluminum frame products also lived longer, not rust. Of course, don't ignore the strength of the frame, some manufacturers are on the weight, in fact they are by reducing the thickness of frame to reduce weight, difficult to Folding electric bikes the frame has enough strength. Best riding around on the spot, not only can feel the frame strength, but also can test the vehicle body mechanics design is reasonable, good design can guarantee the riding position stretching, even long distance will not fatigue. Four: folding bicycles, the choose and buy brand recognition. Folding bicycles, due to the folding part can be activities, therefore requires corresponding parts when riding with solid and reliable performance, the frame should pass special design, has a higher strength than ordinary bicycle. You must by professional manufacturers to design and manufacture. Less known and inferior brand car manufacturers often in pursuit of high profits, in such aspects as, material, spare parts, the design of the lacquer that bake to cut corners, after-sales service is not certain. So consumer is when the choose and buy, should choose well-known enterprise product as far as possible to ensure your safety.

The composition of electric scooters

Electric motorcycle components include: motor, battery, charger, turn to, brake handle, power sensors, lamps and lanterns, display instrument, various work unit to complete the task. Motor used in electric vehicle, the mechanical structure, speed range, and there are many kinds of form of electricity. Common are: brush brush gear hub motor, no gear hub motor, brushless Three wheel bikes hub motor, brushless gear hub motor, side to hang and so on. Now in general use machine has two kinds, one is the rare earth permanent magnet motor, the other is a rare earth permanent magnet Folding electric bikesmotor, these two motor which a better quality, which mainly involves using performance, service life and maintenance cost. The internal structure of the permanent magnet motor it for disc rotor, containing carbon brush, the motor speed is 3000 RPM, must through the matching speed reducer, such as clutch reduced the speed to 180 r/min, to drive vehicles moving. So there are the biggest drawback is carbon brush motor brush wear easily, often need to change, and carbon brush poor contact, not only in the process of driving power consumption is big, but also produces the electric spark and accelerate the commutator oxidation, but have a motor for the control system of the technical requirements is low, simple and convenient maintenance, its production cost is far lower than the brushless motor, vehicle cheaper. Consists of two parts, electric wheel hub and control system, it is the use of electronic commutation, automatic switch drive the polarity of the magnetic field, the direct drive motor wheel rotation at low speed, brushless motor due to the low speed without the need for gear, smooth operation, no mechanical wear and tear, can be directly driven wheels, so there is no brush wear, no commutation spark electronic jamming, its service life can reach more than 10 years. Such motor production technology is complex, and cost is high, slightly lower than brush start torque motor.

The electric tricycle industry in China

The electric tricycle industry in China started in around 2001, it has been nearly 10 years of development history. From 4 years the total output of about 500000 to about 2 million vehicles last year, the rapid development of the electric tricycle industry Folding electric bikes people up. Just a few years time, xuzhou venture, shangqiu, henan and jiangsu changzhou rise of several important parts, formed three major bases of electric tricycle industry, almost occupy more than 90% of the total sales of the industry. In addition, the local small and medium-sized electric tricycle enterprises also Three wheel bikes sprung up in these few years grow up, such as shandong, zhejiang and other places, the electric tricycle enterprise development momentum. The electric tricycle freight car, leisure, sightseeing car, assistive products involving car, beach car, solar electric tricycle, and many other cars. Relative to the electric two-wheelers, electric tricycle industry development prospect and space more broad, late start, the market has not fully develop; Product is still in a lower level, the overall quality and the function needs improving; The policy level, industry standard question is in the air; In terms of enterprises, for small and medium-sized investment in capital, technology, channels, marketing and other aspects of the foundation is still not enough, did not form a strong leading brand, brand pattern did not form a stable situation.

Electric vehicles as a transport vehicle has been popular

Electric vehicles as a transport vehicle has been popular, it was found that every winter than summer a large number of electric vehicle battery Folding electric bikes shrink, or become difficult to charge, can't even start. In fact, this is the lot as consumers ignore the winter for the maintenance of the battery. Reporters visited several electric car repair shop, capital maintenance of electric vehicle battery. "Abraham area a electric car repair shop maintenance personnel tell reporter, battery the best working environment temperature is 15 degrees Celsius and 40 degrees centigrade. In this temperature range, can affect the normal work of the battery, the battery life will be shortened. A normal lead-acid battery can ensure the vehicle furthest distance of 50 km, due to the principle of heat bilges cold shrink, when the environment temperature to ten degrees Celsius, the battery power can't release, one hundred percent charged a mileage in winter than in Cargo bike when charged a mileage to reduce a lot. So it is important for battery maintenance. Charging ways, first time after go home, regardless of age, all want to charge, keep the electricity pool in the condition of sufficient electricity use, if occasionally didn't charge the battery, but often is not full of electricity use, the battery will create a "memory", affect the line continuation mileage, also the service life of the battery. Charge when you plug plug of the battery, and then insert the plug. End of charging, first pull the plug, pull out the battery plug again. Secondly, launch electric vehicles, avoid large current discharge, reduce the manned exercise, climbing the best human implementation or power line, otherwise it is a big damage for the battery. If the vehicle in the open air or cold storage for weeks when not, should remove the battery, stored in a warmer room, to prevent freeze damage to the battery. And try to shorten the use of electric vehicles at low temperature, and should be recharged in a timely manner. If you are not ready to use in winter storage battery, don't keep in the coming year when using rechargeable batteries, and it should be every 1 month to charge one battery, to ensure the storage capacity of lead-acid electric pool, at the same time avoid acid damage to the battery. Maintenance personnel said maintenance charging battery will remember to frequently, more power. In use after six months, the best to do a battery maintenance maintenance station, appropriate complement battery electrolyte, adjust well the proportion of the electrolyte, and check the electricity situation, keep the battery electrolyte proportion, can increase the number of charging when necessary. At the same time, clean the terminal of the battery, and painted with special grease to protect it is also very important, practical and reliable this can ensure that the electric car startup, extend battery life.

The application of the integrated circuit controller technology

China electric bicycle in torque sensor technology and the application of the integrated circuit controller technology has been one of the world's leading position, has the strength of enterprises in the integration of electronic and digital technology application in the controller, motor valve control and charge control components, such as intelligent electric bikes will be the future development of the commanding heights. Traditional lead-acid batteries due to may cause secondary pollution, its weight big, slow speed of charging, and become a short service life of Folding electric bikes bicycle's Achilles' heel. China has gradually mature application technology of nimh batteries, lithium batteries once security problem to solve, can also be gained popularity. Leading technology of electric bicycle production enterprises to strengthen the research of new energy, reduce the cost of a new type of battery for electric bicycle more "life source". To Three wheel bikes the research of charging technology, considerably improve the charging efficiency, prolong the life time of the battery. According to experts research, damage on the market have 80% was inferior battery charger as bad. Chinese high-tech companies have already begun the research, changing the conventional charging to amplitude pulse and digital control technology, effective control of the battery in the process of charging water loss, to ensure the charge balance, improve the service life of the battery. The high-tech composite materials and high strength light alloy materials will be more applied in the manufacture of electric bicycle. At the same time in the successful application of aluminum alloy material, the use of titanium alloy, light weight, high strength material such as chrome molybdenum steel and carbon fiber and other polymer composite materials. Increase the intensity of electric bicycles, reduce weight electric bicycle. The bicycle revolutionary changes in performance and manufacturing process. Strengthen the electric bicycle motor research, development and application of new energy efficient energy-saving motor, efficient compensation of motor, further improve the energy efficiency of electric bicycle. To speed up the application of international new technology, new material, the production of tires, batteries and accessories with nanometer materials, the electric bicycle is lighter, faster and farther.

Folding bicycle design background and significance

Folding bicycle design electric trike and significance of the bike as a short walking and leisure tool is irreplaceable by other means of transport function [1]. But urban development lead to traffic congestion, vehicle storage area is insufficient, lack of bicycle parking places and stolen Folding electric bikes is very serious situation, pressing for bicycle take up less space, easy to carry. The emergence of folding bicycles, better solve the above problems. The current folding bicycles, folding main purpose is to reduce the occupied space, function is relatively single, not through simple changes with other functions; At the same time around the folded way of folding, folding after modelling is generally quite rough, like a scrap of bike, its outstanding, bones and muscles exposed edges and corners, no folding locking device, can't support independently and stand down. To make up for the above defects, this paper designs a new type of multifunctional folding bicycles. The folding bikes "four with a car", in addition to general bicycles instead of walking or fitness function, but also as a shopping cart, after the folding luggage trailer and seat use, unifying the cycling, shopping, transportation and rest. 2 folding bicycles, folding folding scheme analysis scheme is the core issue of folding bike design. "In today's society, because the problems such as pollution, traffic congestion, on the design of the urban traffic is convenient and environmental protection become a big trend, city appeared a lot of folding bicycles." Folding bicycles form [1] is clever and green environmental protection, can save a space and meet the needs of people fast rhythm life, ideal short-distance transportation for the future. Analysis of folding bicycles, folding way, set out from human and beautiful,

The electric tricycle has good market prospects

The electric tricycle has good market prospects, has a huge role to the national economy and people's livelihood, therefore improve the electric tricycle industry reasonably. This exploration, the Cargo bike prospects and policy electric tricycle industry as a component of electric cars, has carved out a market proud. Truly achieve commercial production and sales of the world today, has been a huge market share and ownership of electric vehicles, and only China electric two-wheelers and electric tricycle. As the population ages and expansion, the national development of urbanization, urban Folding electric bikes which has the function of vehicle electric tricycle a vast market. Small electric tricycle with safe, convenient and comfortable for characteristic, wins the favor of the elderly and inconvenience to act. Second, the small passenger tricycle consider to choose products, many families can take people to travel, can also carry small goods, is very convenient, is the family shopping, ferry their children to school, carrying his wife ideal tool to travel for pleasure. Whether in the cities or in rural areas, and the integration of urban and rural areas, the electric tricycle has become a part of the working group of production materials, tools to transport the goods delivery, express delivery industry

The electric tricycle is a battery powered

Electric tricycle is a battery powered motor to drive the pull goods or people use three-wheeled transport. The tube around the large capacity, liner, deep discharge, Folding electric bikes battery, can adapt to work long hours continuous discharge requirements. Series traction type has a brush or brushless dc motor and its internal control power device to ensure the electric tricycle output power is strong. Electric tricycle use environmental protection, clean, high conversion rate of electricity as a driver, is Three wheel bikes used in families, urban and rural areas, individual rental, factory, mine, sanitation, community cleaning, and other areas of the short-distance transport. Electric three bus because of the particularity of the battery, the more power and speed, running low noise, long service life, speed control system using inorganic speed, easy operation. Because of its small volume, simple maintenance, easy maintenance, low price etc, are free to lower through the narrow road or the road. Has a reversing switch, easy to realize reversing driving function, and has a voice prompt, in the road narrow alleys, hutong is very applicable, regardless of the road parking is very convenient. Running in the process of no pollution, green environmental protection, can charge the battery power is low at night, make full use of the power resources, has the social benefit of environmental protection and energy saving.