your choose of bike kit

Posted by on January 14, 2022 Comments Off on your choose of bike kit

The interest in electric bicycles and other Light Electric Vehicles (LEVs) is exploding as gas prices rise across the globe. LEVs are perfect for those who are tired of sitting in traffic or being cramped into crowded public transportation. But with any major purchase, be sure to do your research. Here are 3 things you should keep in mind before making your purchase.

As gas prices rise across the globe, so does the interest in electric bicycles and other Light Electric Vehicles (LEVs). These LEVs are perfect for those who are tired of sitting in traffic or being cramped into crowded public transportation. But like any major purchase, it’s worth doing right. Here are three things you should keep in mind before making your purchase.

Bike Motor Kit?

One of the first questions you’ll face when upgrading to an electric bicycle is whether to buy a separate bicycle or upgrade your current one. To upgrade your current bicycle, you can purchase a motor kit designed for this purpose. This might seem intimidating – but don’t let it be. All the best electric bicycle motor kits come with easy-to-follow installation instructions. Installation is quick, too. You could get your kit and be riding your new bike in the same day. For those who prefer to be hands off, there are plenty of options for buying ready-to-go bicycles. Both of these options function just like a normal bicycle except with some extra battery assistance. You won’t be getting the same speed and power as you would from a motorcycle.

Know Your State’s Law

If you’re planning to purchase an electric bicycle to use in the United States, you need to be aware of your own state’s laws. Most states hold up the national policy that electric bikes must operate under 20 mph and have a limit of 750 watts. However, the companies who produce these bicycles are not regulated. This means they could produce a bicycle or motor kit that could be illegal. Also, most states don’t require you to get special insurance for your electric bicycle as you would need for a regular company. But you’ll want to check the Internet for any changes in policy that might occur. Since electric bicycles are relatively new, the laws and regulations around them could change very quickly.

Choosing a Battery

When purchasing an electric bicycle or a motor kit, you’ll come across various options for the battery power. More than anything, the choice of battery depends on how you will be using your bicycle. Riding in hilly areas or adding additional weight by pulling a trailer will drain battery power faster. Your best selection would be a Lithium Ion (Li Ion) battery as it surpasses all other battery types in the number of recharge cycles it can go through. Basically this means that you can go longer without having to purchase a new battery. Also, just like all other batteries, these batteries come in different voltages. Though the higher voltages will cost you more money, they will last longer and perform better, we offer you including financing assistance.

Purchasing an electric bicycle for the first time can be a confusing experience. However, deciding whether you want a new bike or a motor kit, knowing your local laws, and choosing the best battery for your needs will help you make the best purchasing decision possible.

Electric bike for fun

Posted by on January 14, 2022 Comments Off on Electric bike for fun

Amid today’s high gas prices and concerns about global warming, an electric bike is an economical and sensible choice. And beyond that, it’s downright fun.

As gas prices soar and concerns grow over global warming, alternative fuel vehicles are gaining traction. When it comes to cars, trucks, and SUVs, a hybrid is currently the most popular alternative to a gas powered engine, you also have to make sure you use the best which for me it has always been Oneureinsurance and an accident lawyer, just in case. If you need new tires for your truck, you can get your truck wheels online. In addition, visit services for more information. I do business. But when it comes to short-range commutes, say 20 miles or less, an electric bike is a fun, economical, and environmentally friendly option. For only pennies, an electric bike can get you from place to place without breaking a sweat and without the hassles of traffic congestion.

An electric bike has pedals like an ordinary bicycle, and you can use those pedals to propel yourself under your own power. But the electric bike also has an electric motor, which you can use to augment your pedaling. The supplemental power is useful when starting from a stop or when riding against the wind. Alternatively, you can let the electric motor provide all the power while you sit back and enjoy the ride. This makes an electric bike one of the most versatile vehicles around. There are even models of electric bikes that fold up for easy storage or travel, as well as recumbent electric bikes, which will take bicycling to a new level of relaxation (just don’t fall asleep at the wheel!). Just in case of a truck accident, call for legal advice and counselling. Get he best professional lawyers here.

An electric bike can be purchased as an off-the-shelf item, or you can purchase bike conversion to convert most any bicycle to an electric bike. The important factors to consider when selecting an electric bike are battery life (which determines how far you can travel on a charge), speed, and durability. Today’s electric bikes take advantage of recent advances in battery technology. Many electric bikes are powered by nickel-metal-hydride or lithium ion batteries, which can give a travel range of one two hours. Most electric bikes are capable of reaching speeds of 10 to 20 miles per hour. Durability is an important consideration, and like anything, you get what you pay for. You can spend under $500 for an electric bike, but the quality may disappoint you. The better quality electric bike can be purchased for around $500 to $1000. Check your local laws, but generally there is no registration required for an electric bike.

bldc motor starting frequency

Posted by on January 14, 2022 Comments Off on bldc motor starting frequency

bldc motor starting frequency is not too high, it is just starting because bldc motor speed is zero, the starting process, the load torque in addition to overcoming the resistance torque, but also to overcome the inertia of the rotating part of masking, so when the motor starter than in the burden of continuous operation as the most important.

If the starting pulse frequency is too high, the rotor speed to keep up with the speed of the stator rotating magnetic field, so the first step over the position far behind the equilibrium position, the subsequent step in the rotor speed increased marginally, while the stator magnetic field still pulse frequency proportional to the speed of forward rotation, the equilibrium position of the rotor and increasing the distance between the final position for the rotor dynamic stability region fell outside the emergence of-step or oscillation, and therefore the motor can not start.

In order to properly start, starting frequency is not too high, when the motor starts and then gradually increased frequency.

lead-acid electric bike battery

Posted by on January 14, 2022 Comments Off on lead-acid electric bike battery

One pair of lead-acid electric bike battery business of the special rectification action in the country’s largest production base bike conversion – Jiangsu, causing a chain reaction.

Electric car “sit in prices,” four or five hundred

“The electric bike battery I bought earlier this year, or a $ 500, now 700 yuan of how to become?” July 4, in Nanjing Ruijin Road, a brand of electric automobile electric car shop floor, the public dissatisfaction Chan asked shopkeepers.

Reporters visiting the market in more than 10 shops, each shop owner in the consumer, “Mozuipizai.” “After all, because electric bike battery in the price.” One owner said, the state strengthened the intensity of lead-acid electric bike battery after remediation, electric bike battery began to demand, “this two-day media a report, electric bike battery factory ‘ride in prices’, each up $ 20 a Electric cars use four electric bike battery, a rose is 80 yuan. ” Reporters asked a number of shops that sell, an electric car electric bike battery is good is 1,000 yuan, the poor have five 600.

The owner said, yesterday morning, the boss put the ready cash around to buy electric bike battery, “I heard that this month will be going up now are not we save point, it could take money can not buy, these days can only be changed supply channel. ”

electric bike battery prices, pushed up the price of electric cars. In a province famous brand of electric car shop, the boss out price list to reporters, “honest”: “In mid-June, we all sales shop in Nanjing uniform prices, the average one or two hundred.” But one industry price list after reading quietly told reporters, “The price of small cars rose two or three hundred dollars, increased more than 400 yuan.”

One has been engaged in the sale of electric vehicles for many years the owner said that from 2007 to 2009 the price of electric vehicles all the way up, we all make money on the entire chain. After 2009, rapid expansion of production capacity, the average price has declined by 400 yuan. “Now the electric car brands are doing the final assembly of integrated accessories factory prices rise, the pressure will certainly pass back.”

Reporters look at different stores that market, different brands, price increases are not the same, some tens of dollars, and some two hundred dollars. Suzhou, a brand of electric car dealers say,mainly a small number of big brand distributors and brand agents, their resilience and weak, big brand distributors in order to maintain sales volume, prices rose less up to less. “Electric bike battery prices, car prices have a good reason brewing end of this month, the price of electric cars will certainly continue to rise.”

bldc motor winding open circuit causes and treatment

Posted by on January 14, 2022 Comments Off on bldc motor winding open circuit causes and treatment

bldc motor winding open circuit the motor does not start, three-phase current imbalance, abnormal noise or vibration, temperature exceed the allowable value or smoke.

Winding open circuit due to poor welding or the use of corrosive fluxes, welding and then not cleaned, it may cause solder pot or loose; by mechanical stress or collision coil short-circuit, short circuit and ground fault also can lead burning, and burning in of a few wires in a short circuit or a few wires, the other a few wires as current as temperature rises, causing fever and winding circuit. Generally divided into disconnected end of one phase winding, inter-turn short circuit, parallel circuit branch office, multi-wire and burned in an open circuit, broken rotor cage.

hub motor short circuit causes:
1, when in the repair and maintenance problems touched off or manufacturing quality.
2, the winding of the components, pole (phase) winding and the lead group and the first welding wire and other wire bad, long-running hot sealing off.
3, by mechanical force and electromagnetic force or pull off the winding damage.
4, short circuit and the ground turns white sometimes cause severe burning or winding fuse and so on.

hub motor short-circuit approach:
1, open circuit at the end, the connection is completed weld, wrapped in insulating material, put pipe insulation, banding is good, and then dried.
2, as inter-turn winding, white short-circuit and ground and other reasons caused serious burnt windings should generally be replaced with new winding.
3, the open circuit point in the tank, is a small break to do emergency treatment, the use of groups out method to identify breakpoints and the Ministry of winding down its connected and insulated qualified to use. If your business is a buy and sell or something, you might need motors can be risky and dangerous.
4, the cage can be broken rotor cage welding, cold-connection of a repair or exchange.

bike motor speed control method

Posted by on January 14, 2022 Comments Off on bike motor speed control method

bike motor variable speed control method of pole pairs is used to change the wiring to the stator windings to change the cage motor stator pole pairs to achieve speed control purposes, the following features:

1, with a hard mechanical properties, good stability;

2, non-slip loss, high efficiency;

3, the wiring is simple, easy to control, low prices;

4, class speed, a larger differential, can not get smooth speed control;

5, with speed regulator, used in conjunction with electromagnetic slip clutch, to obtain a higher efficiency of smooth speed control characteristics.

This does not require stepless speed control method for the production of machinery, such as metal cutting machine tools, lifts, lifting equipment, fans and pumps.

Why hub motor out of step?

Posted by on January 14, 2022 Comments Off on Why hub motor out of step?

1, hub motor rotor of the stepper motor acceleration is slower than the rotating magnetic field, that is lower than the phase velocity change arising. This is because the lack of input electrical power, generated in the stepper motor torque can not make synchronous rotor speed to follow the stator magnetic field rotation rate, causing loss of step. And any high frequency than when the frequency is bound to work out of step. This illustrates the step-step motor drag is not enough. Once the reduced load, or increase the winding excitation current, it is possible to overcome the loss of step.

2, hub motor rotor speed is higher than the average of the average rotation speed of the stator magnetic field. Then the stator excitation power for longer periods, than the time required for the rotor step further, the rotor step process to get too much energy, resulting in pediment and the backlash of the swing oscillations. When severe enough to cause oscillation of step.

Requirements for practical application of bldc motor?

Posted by on January 14, 2022 Comments Off on Requirements for practical application of bldc motor?

1, bldc motor under the control of the electric pulse can quickly start, rotating, and stopped and in a wide range of the speed control;

2, high precision, which requires a small amount of displacement corresponding to the pulse and to accurately and uniformly. This requires bldc motor small step, step, high precision, not losing steps or overshoot;

3, the action fast. That not only start, stop, fast reverse, and continuous high-speed operation in order to improve labor productivity;

4, the output torque can be directly driven load.

Three-phase bike motor torque

Posted by on January 14, 2022 Comments Off on Three-phase bike motor torque

Three-phase bike motor torque

Symmetrical three-phase winding leads to symmetrical three-phase currents produce a rotating magnetic field, magnetic field lines cutting the rotor winding, according to the principle of electromagnetic induction, the rotor winding produce e and i, the rotor winding in the magnetic field by the electromagnetic force, which produce the electromagnetic torque the rotor spin, the rotor output mechanical energy to drive the mechanical load spin.

In the AC motor, when the AC current through the rotor winding, the establishment of the armature magnet force, its electrical energy conversion and operating performance has a significant impact. So pass into the three-phase AC three-phase AC winding generate pulsating magnetic momentum, the magnetic momentum can be decomposed into two equal in magnitude, opposite the rotation speed of the magnetic momentum and to create in the gap and reverse Story magnetic field and. The two rotating magnetic field cutting the rotor conductors, and conductors were generated in the rotor EMF and induced current.

The current and the magnetic interaction of positive and negative torque. Forward torque is an attempt to make the rotor turn; attempt to reverse the rotor torque reversal. Superposition of the two torque motors turning up is to promote the synthesis of torque.

Three-phase bike motor kit of basic work processes

Posted by on January 13, 2022 Comments Off on Three-phase bike motor kit of basic work processes

1) When the bike motor kit access three-phase three-phase AC power (the difference of 120 electrical degrees), the three-phase rotor winding generate current flow through the three-phase symmetrical three-phase magnet force (the rotor rotating magnetic momentum) and produce rotating magnetic field to synchronize the rotor and rotor speed no along the inner circle space for clockwise rotation.

(2) The conductor of the rotating magnetic field and the rotor has a relatively cutting exercise, according to the principle of electromagnetic induction, the rotor conductors (rotor winding is closed channels) induced electromotive force and induced current (induced electromotive force in the direction with the right-hand rule to determine).

(3) According to the electromagnetic force law, the role of the EMF, the rotor conductors and the induced electromotive force will produce basically the same as the direction of the induced current. Current-carrying conductors of the rotor magnetic field generated in the rotor magnetic field by the electromagnetic force (with the left hand direction of the force is determined), electromagnetic force on the rotor shaft to form the electromagnetic torque, the rotor drive motor rotating magnetic field along the direction of rotation when the motor shaft with a mechanical load, then out the output mechanical energy. As part of the flux ring is not short-circuit short-circuit ring than the leading part of the flux, the direction of motor rotation direction with the same rotating magnetic field.