Detailed analysis of the features when choosing electric scooters
The information in this article is extremely important, written by experts with many years of experience, and, of course, after reading it, you will understand what to look for when choosing, and how to choose an excellent model of an electric scooter.
If you are impatient to find out the most important things to pay attention to when choosing, then you can immediately go to the conclusion of the article, which briefly describes the main points when choosing. CONCLUSION
Before you start choosing an electric scooter, you need to clearly understand for whom exactly it is being selected. The most important thing when choosing an electric scooter in 2021 is to choose the right main and secondary parameters for a specific user.
The main parameters are the parameters on which the choice of the model depends significantly, each of these parameters is extremely important when choosing.
The main parameters of an electric scooter are:
Battery of the electric scooter
Batteries are lithium and lead.
When choosing, it is better to give preference to lithium batteries. In all respects, they are much better than lead ones; they are now installed everywhere, from smartphones and laptops to electric machines. Lead-acid batteries have a very large weight, a small resource and, unfortunately, a small capacity.
By the way, about the capacity. The capacity is indicated in Wh (watt hours), to get Wh, you need to multiply the voltage of the device V by the ampere hours Ah, for example, according to North Star mini 5, the calculation will be as follows: 48v multiplied by 13Ah, we get 624Wh, the larger this number, the more powerful the battery. For a better idea, the capacity of the battery is like the gas tank of a car, the larger it is, the longer the electric scooter will travel on a single charge.
Some sellers do not specifically indicate it in the characteristics, since it can significantly affect the choice. Instead, they indicate the mileage that the electric scooter supposedly has to travel, often significantly overestimating it. To understand well how much a scooter can really travel on a single charge, you need to know how to calculate the mileage. Calculating the approximate mileage is very easy. Take the capacity in Wh and divide by 10. For example, divide 240Wh by 10, you get 24. This means that an electric scooter can travel about 24Km. Why approximately? Because mileage depends on many factors such as speed, driving style, type of road surface, ambient temperature, user weight, etc.
Buy an electric scooter with a lithium battery at least 200Wh.
Wheels come in a variety of diameters, from tiny 3 “to incredible 14”.
What you need to know about wheel size? The larger the wheel diameter, the softer the electric scooter will ride and the easier it is to drive, but the heavier it will be.
Wheels with a diameter of 8 inches are the absolute average here. In second place is a diameter of 10 inches.
There are also pneumatic wheels (inflatable) and cast rubber (not inflatable).
Pneumatic ones are good because they create good shock absorption, absorbing bumps on the road well. The bad news is that they can be punctured.
Cast wheels are good because they cannot be punctured. Their disadvantage is that they are not so soft and do not absorb vibration so well.
Which is better? This is a philosophical question that has divided users into 2 fronts. Someone prefers pneumatic wheels, someone on molded rubber.
What to take?
Pay attention to the terrain where you will ride:
Electric scooter motor
There are two types of motors: a wheel motor and separately running chain-driven motors.
- Chain-driven motors are when a motor is connected to a wheel by a chain or belt.
- A wheel motor is when the motor is mounted directly inside the wheel itself.
When choosing, it is better to give preference to a motor-wheel. Motors mounted inside the wheel are better than chain-driven motors in all respects. Motor wheels are quiet, durable, sealed, maintenance-free and more powerful.
The power of motors is different: from 100 watts to an incredible 3000 watts of nominal power. 350 watts is more than enough to get you up to 30 km / h. Speaking of speed.
Electric scooter speed
The speed can vary from 10 to 100 km / h.
The average speed, which 90% of scooters fall under, is the speed up to 30 km / h. At speeds up to 30 km, driving any model of an electric scooter is comfortable and pleasant. Sometimes you can afford more: 35 and even 40-45 km per hour. But we do not recommend going beyond these values.
If the model of an electric scooter is selected for a child, then make sure that you can lower the speed yourself. Some models have a speed switch, or the speed is limited through the application on the phone.
Electric scooter weight
A very important parameter that few people pay attention to. Scooters can weigh from 5 to 50kg:
- Super light up to 8kg;
- Lightweight from 8 to 12kg;
- Medium from 12 to 19kg;
- Heavy from 19 to 24 kg;
- Heavyweight 24 and up.
Each category has its pros and, of course, cons. The most popular are super light and light electric scooters, since almost everyone, except for small children, can lift a weight of 12 kg, and their average characteristics are great for daily use.
2) The lighter the electric scooter, the smaller its wheel diameter, and the more vibration from irregularities on the road will be felt.
After selecting the necessary basic parameters, it is also necessary to pay attention to the secondary factors.
The secondary parameters of the electric scooter are the parameters that you should pay attention to after you have decided on the main parameters.
The secondary parameters of an electric scooter include:
- Splash wings
- Suspension (shock absorber)
- On-board computer (display)
- Telescopic steering column
- Folding handles
For some unknown reason, some models of electric scooters are still not equipped with fenders that would protect the user when riding in rain or slush. Sooner or later, the purchase of an electric scooter without wings can result in splashing mud on both the scooter itself and the user.
Electric scooter suspension
An important parameter when choosing is suspension or damping. It dampens unwanted vibration when using the electric scooter on uneven surfaces. The suspension is of two types: spring and pneumatic. But it doesn’t matter, what matters is that the electric scooter with suspension rides much softer and does not cause discomfort. Also, sometimes manufacturers put the suspension only on the front wheel or on the rear. The most comfortable ride is achieved when the suspension and inflatable wheels are combined.
In a nutshell, ride comfort on a scale of 1 to 5:
On-board computer with display
Many models of electric scooters are equipped with a display that shows the most important indicators during operation, such as speed, mileage, battery level, and so on. Of course, this is very convenient.
There are also models for which special applications have been developed, with which you can connect to the electric scooter and make minimal settings or see important indicators.
In any case, make a choice in favor of models that have the ability to display indicators such as speed, mileage, battery level.
Telescopic steering column
Some electric scooters are equipped with a telescopic steering column, that is, it can be extended to a comfortable height. If your height is 170-175cm, then there is no cause for concern. But if your height is higher or lower, then you should give preference to electric scooters with a telescopic steering rack.
By themselves, electric scooters are very narrow, their width rarely exceeds 20 cm, which cannot be said about the steering wheel itself. The handlebars are usually 40cm wide. The handlebar can be folded down to the width of the electric scooter, making transportation and storage more convenient.
There are several folding options:
– on some models, the handles are unscrewed;
– on some they add up;
– some turn vertically.
But it doesn’t matter. The important thing is that the very ability to make the dimensions of the electric scooter smaller, much better than the absence of such.
Electric scooter lighting
A very important secondary parameter, which many simply do not pay attention to. The backlight is different: front, back, side. The main thing is to have it. It can be turned off at any time.
When operating an electric scooter with illumination in the dark, safety is significantly increased due to two factors:
2) you see unwanted obstacles on the road.
Everything is simple here. try to make your choice in favor of a backlit model.
Here we come to the conclusion.
Now we know the main and secondary parameters that should be emphasized when choosing an electric scooter.
Conclusion on the main parameters:
1) Only lithium battery with a capacity of 200Wh;
2) Wheel size is desirable from 8 inches. If there are many flat roads, then less is possible. If there are many irregularities, then more is possible;
3) Only the motor inside the wheel (motor-wheel);
5) By weight, preferably take an electric scooter within 19kg.
Conclusion on minor parameters:
1) the wheels of the electric scooter must be protected by fenders;
2) try to choose a model with a suspension for a more comfortable ride. Or a model with inflatable wheels. By the way, here one does not interfere with the other;
3) if there is a display on the electric scooter, then this is a plus, because you can always look at the current speed, mileage and remaining charge;
4) the very ability to push the steering wheel to the desired height will allow all family members to use the electric scooter with pleasure;
5) try to make your choice in favor of models with a folding steering wheel. If necessary, the dimensions of the electric scooter can be reduced, isn’t that great??
6) Backlight. If there is a backlight, then you should not worry about operation in the dark. The main thing is that the backlight is.
We hope that after familiarizing yourself with all the important and necessary parameters, it will be much easier for you to make a choice and purchase a model that will most suit your parameters and needs. For those who still have not decided on the choice, we offer our selection of models that fully or partially correspond to the above.
Review of the new version of the robot vacuum cleaner Xiaomi Mi 2 generation
A year and 4 months ago, Xiaomi launched a robot vacuum cleaner on the market. During its existence, this robot vacuum cleaner has managed to gain very great popularity not only among fans of the brand, but also for those who are not at all familiar with the products of this Chinese giant. And all because the vacuum cleaner copes with its functions really gorgeous, and in comparison with competitors, for its price, it really cleans very, very well. Since the first model went on sale so well, then let’s launch a series of the second model, we decided at Xiaomi and released Roboroc version 2 on the market. A detailed review, the insides, how it cleans up, and what is the difference between the first and the second robot. I will try as much tell further.
Xiaomi Robot Vacuum Cleaner 1st generation. for 299.99
Robot vacuum cleaner 2nd generation Roborock S50. for 499.99 with couponNEWXMVCM
Battery capacity 5200 mAh, operating time up to 2.5 hours from a single charge;
Cleaning area from one charge 250 m²;
2 brushes: main and side;
Positioning Laser Distance Sensor (LDS). The laser scans the room 1800 times per second. The radius of action is 360 degrees. The robot builds a map of the room using the SLAM algorithm;
Automatic detection of the surface on which cleaning is in progress. For example, hitting the carpet, the robot increases the suction power;
Overcoming rapids up to 2 cm high;
Three-level vacuum cleaning system;
Through the application, you can set the cleaning area, for example, a specific room.
Automatic return to the station when the battery is low;
Weight 3.5 kg;
Dimensions 35.3 x 35.0 x 9.65 cm.
Arrived in such a large cardboard box, just like the first model.
In the company Xiaomi, seeing what popularity their robot vacuum cleaner gained not only in China, but also around the world, releases the International version. As we can see here all the inscriptions are in English, looking ahead, I will say that the instruction is also in English. No Chinese, the application is also in English right away.
Inside the box is another box, where it is more or less clear that there is a robot vacuum cleaner, and the drawing has already been changed. We see that the lidar is slightly shifted to the center.
Opening the lid, we see some kind of incomprehensible plastic thing, instructions in an envelope and a few additional boxes.
The company’s designers are quite responsible for their work and this is how the instruction looks like in a simple envelope.
The instruction is completely in English, but I think that without it, in principle, there should be no questions about using this robot vacuum cleaner.
Everything is laid out in boxes. And in one of these boxes there are microfiber cloths, which are used for wet cleaning.
There are also valves that are inserted into a plastic water container so that water flows out through them. Their peculiarity is that when the robot vacuum cleaner drives, the water goes through them, little by little, and wets the microfiber cloth. When the robot vacuum cleaner is in place, on the base, no moisture forms under it.
This is how these valves look, something like a felt-tip pen with rubber rings. There are only two pairs in the kit and they are not yet available for sale.
There are two already installed in the container. I don’t know how long they will last, but for a month now the flight is normal.
The fastening is done quite thoughtfully, on the one hand, where the maximum pull-off force, the microfiber cloth is inserted into the groove, on the other hand, it is fastened using soft Velcro.
On the back there is a small wheel, so that in the event of a tilt when overcoming obstacles, the vacuum cleaner does not cling to the floor with a plastic container, but, as it were, rests on this wheel.
I have no complaints about the quality of the cloth, a neat, even seam, the threads do not stick out, everything is overlapped.
Take off and put the cloth on, probably 3 seconds. Tear it off from the Velcro, take it out from the side, rinse it, dry it and fix it back. The plastic container itself looks like this.
There are plastic latches on the left and right sides that hold the container and prevent it from leaving the rails at the bottom of the vacuum cleaner.
In order to prevent your laminate or the wooden floor from swelling if water suddenly leaks onto it, for this there is a plastic backing in the kit, which is attached to the base and on which the robot vacuum cleaner drives in.
There are small soft bumps on the back to prevent slipping.
Unlike the first model, where the cord could be hidden inside the base, in the second version there is just such a velcro that pulls the cord to the length we need.
The base has become smaller than the robot vacuum cleaner of the first version, although there is nothing special in it to be big, so apparently they decided to make it smaller so that it takes up less space and does not get confused underfoot.
Accordingly, the method of recharging the robot vacuum cleaner has also changed. In the first version of the vacuum cleaner there were horizontal plates to which it touched with its side, in the same version the contact pads are located at the bottom of the robot vacuum cleaner.
At the bottom of the base there are rubber anti-slip inserts that prevent the robot vacuum cleaner from moving the base from its home.
The mat is attached to the base, but sometimes the robot vacuum cleaner knocks it down. I recommend securing the base and stand with double-sided tape somewhere on the floor, under the bed. Or even use the robot without it, since when the robot is stationary, water does not flow out at all!
Base dimensions 14 cm 12.7 cm and height 10 cm.
When the vacuum cleaner is outside the base, a moon-white light is on at the top of the base. When the robot vacuum cleaner drives up to charge, the LED goes out.
The hero of the review himself, visually, practically does not differ from the first version, the only difference is in the location of the lidar. Lidar was shifted slightly to the center of the vacuum cleaner and the control buttons on the top of the robot vacuum cleaner were slightly changed.
Many people asked me if it is possible to use this robot vacuum cleaner without the Internet, without WI-FI, that is, without a mobile phone. Yes you can. To do this, there are three control buttons on the upper part of us, one of them is to start / stop cleaning, a long press will turn off the robot vacuum cleaner, on the left is a button for returning to the base and on the right is a button for local cleaning. That is, if you scattered some garbage, cereals, or I don’t know chips near the table, we bring the robot vacuum cleaner to this place, press the button, and it does local cleaning in this square. After that, he returns to the starting point, from where he started cleaning.
There are practically no changes in the lidar, except for one. In the first version of the robot vacuum cleaner, the lidar had a rigid structure and was almost monolithic with the body. In the second version, a small sensor is located under the lidar, which prevents it from getting stuck. How does this happen? A robot vacuum cleaner drives up, for example, to a bedside table, which is not higher than its lidar and either hits the uppermost part and moves away from the impact. Or crawl a little under the bedside table. the micrik is triggered and the robot vacuum cleaner drives back.
In the front there is an IR sensor, which is responsible for the distance to the wall. Compared to the infrared distance measurement module from the first version of the robot, the new indicator measures distances down to millimeters. The first version of the robot had it ultrasonic.
In the back there are blow-out holes and a speaker. Now, after an easy flashing of the robot, it will communicate with you in Russian, and finish cleaning with the words “Everything is cleaned up, master” or “I’m going to the base, my lord.” Also, comparison with the first part, the noise is reduced 54dB at the minimum mode and 67 Db at the maximum.
Lidar is needed to build a map of the room, it constantly rotates and builds a map of the room. In case you even moved a chair or sofa during cleaning, he can safely go around it and draw up an ideal cleaning plan for your apartment.
On the right side, near the brush, there is another infrared sensor, thanks to which the vacuum cleaner can drive up to walls and other obstacles to remove up to 5 mm, so that the side brush sweeps out dust near walls or thresholds as efficiently as possible.
Robot vacuum cleaner with attached wet cleaning compartment.
Another innovation is a change in the design of the dust collector, it seems to have become smaller in appearance. But in fact, it is 30 milliliters more than the first version. 480 ml.
Besides, I didn’t know where to store a special gadget for hair cutting and cleaning before. In this version, they thought over and now there is a place right in the robot vacuum cleaner. this is quite convenient. If you have a cat or a dog with long hair at home, then you shouldn’t worry too much, the hair on the brush does not wind very much, unlike other robots. But it happens that once a month I do both prophylaxis and cut long threads. Cut off the nose of this thing and throw it in the trash.
On the right is the indicator connected to the wi-fi network and a hidden reset button.
Before opening the lid, just pry it a little right under the name Roborock.
Another change in the trash bin is the washable hepa filter. But at the same time, its ability to retain small particles was slightly affected. If the old filter retained 99%, then the new one contains 95%. Convenient enough, took it, washed it, dried it and put it back.
The container from the new version to the old will not work due to the change in this window for the garbage bin
Many people are afraid to open the container for the first time, they do not know which side to approach so as not to break it. It’s not difficult, we just pull on ourselves in the area of the arrows, and it is tight, but snaps off
In the lower part, there are no special changes in the robot vacuum cleaner. Center brush, side brush, and rubberized chassis wheels. But the clearance is slightly increased, if the previous robot vacuum cleaner could pass a threshold up to 1.5 cm high, then the new version of the robot vacuum cleaner quietly overcomes the threshold 2 cm high.
The brush is protected by a plastic plug, with an elastic band that collects additional fine dust in front of itself, if the main brush suddenly misses it.
The plug is easily removable and fits from the first version of the robot vacuum cleaner.
The central brush is identical to the first version, there are no changes.
Therefore, that the wheels go deeper into the robot vacuum cleaner, almost flush, then we arrive at the sill already 2 cm.
The brush rotates as if in a special movable compartment, which allows the brush to fit more snugly to the floor.
The side brush is exactly the same as in the first model. They did not deviate from the principles that the brush should clean itself, that is, practically nothing is wound on it. This is all due to the fact that there is another small brush on the body of the brush, which also erases dust and does not allow hair or threads to wrap around itself. For the entire time of using the robot of the first version, I have never cleaned it.
Xiaomi M365 PRO front wheel bearings change
For recharging the robot vacuum cleaner, there are two large contact pads at the bottom of the base. In addition, in the lower part there are four height sensors that do not allow the robot to fall from any stairs or even a mezzanine.
Another innovation of the 2nd version of the vacuum cleaner is a plastic cover on the bumper, which protects it from scratches in the event of an unexpected impact.
In general, the general equipment looks like this: a robot vacuum cleaner, a base, a protective plastic lining, and a separate water container with a microfiber cloth.
I decided to check how much water goes into the container and it turned out to be in the region of 200 milliliters.
In order to moisten a cloth before cleaning, I do not even take it off. I just put it under the tap with water and then run it with my palm to remove the rest of the water. After cleaning, I also rinse and leave to dry. Do not forget about this, otherwise an unpleasant smell may arise, from which then there is no escape. One filling with water is enough for about 150-200 squares.
Three small specks of water give out our hidden in the body “nozzles”.
On a single charge, the robot vacuum cleaner can clean up to 200 square meters at maximum power, if you have a larger apartment or house, then it will go to recharge and start from where it left off, and at the end of cleaning it will return to the base. Principle of work: left, started building a map of the room and, thanks to this, he drives into every room that he “sees” and where he can get, he goes around the legs of the chair, tries to get under the bedside table, if it is not lower than his lidar, in general, cleaning conduct as efficiently as possible.
The dimensions of the vacuum cleaner are. 35x35x96.5 cm.
The buttons on the panel have a moonlight, while charging, they blink smoothly.
I locked a vacuum cleaner with a small area of 1 square meter.
And that’s what came of it, in principle, he removed everything, but there is too much rice for such an area =). If the area of the room is small, he will go to clean not once, but two times.
Despite the seemingly clean floor, the microfiber cloth is already dirty. Another interesting solution that Xiaomi came up with is to place the microfiber pile directly behind the brush. That is, it does not protrude on the sides, where the vacuum cleaner does not clean with a brush, and does not smear the dirt, but removes by wet cleaning only where the vacuum cleaner brush has already passed.
Small kitchen test 40 squares. In the distance he placed specially cups and put a kettle on them. That is, if he touches the glass, the kettle will fall.
For the test, I decided to use oatmeal.
This is how my wife got dirty, of course, she is unhappy that he scattered so much garbage with his own hand, but the test is a test.
This is what our microfiber looks like after cleaning. She collected the grains that the robot did not suck in.
This is what our robot collected and oatmeal, and wool, and dust. Sometimes you yourself are surprised, like a clean room, a robot drove for a couple of days, and already a full tank.
The cups and the kettle remained in place, he did not even hook them.
We disassemble the base. To do this, unscrew the 4 screws that are hidden under the rubber pads.
The insides of the base. At the top there are four IR LEDs, by which, in addition, the robot is guided when setting itself up for recharging.
Various capacitors and transformers.
We begin to disassemble the robot vacuum cleaner, for this, first remove everything that we can remove from it. Brush, trash can, scraper and water tank.
Now we unscrew all the screws that we see in the upper part in order to remove the lower protective strip.
Without it, the robot looks like this and immediately access to the chassis and side brush drives. The same procedure is required to replace the battery.
The battery is identical to version 1 5200 mAh, 14.4V. 74.88Wh.
Unscrew the compartment with the main brush drive motor
Side brush drive with such a gearbox.
As in the first version of the robot vacuum cleaner, all parts are very easy to remove and, if necessary, simply pull out and insert the module. All disassembly-assembly takes a very short time.
Mikrik, who determines that the wheel is in the air.
We put all the plastic parts aside, and it is advisable not to lose or break them.!
details. lateral infrared sensor for distance to the wall.
Front Wheel Removal and Tube Change On The Xiaomi M365. Nightmare ahead!
Hook up the front wheel a little and remove the bushing on which it is attached.
For a long time I could not figure out how to remove the top cover, but everything is banal and simple. It has snaps, gently pry it around the perimeter and lift it to the top.
For the convenience of controlling the robot, the MiHome application is installed on the smartphone, and we search for a robot vacuum cleaner. Except for one “chip”, there are no special differences from the first version. And the trick is called the allocation of the cleaning zone and the ability to “send” the robot vacuum cleaner to a given place in the apartment, simply by putting a dot on the virtual map.
After adding, the firmware update immediately arrives.
The plugin menu is in English, but you can russify if you want.
Moving the switch to the menu. Which I could not identify for what he was.
In DND mode, the robot will not bother you with a squeak or a signal.
It is possible to install various voice packages, the robot will speak in the voice of a child, a robot, etc. There is no Russian language. it is stitched separately.
4 power modes. I always use maximum mode.
During work, a detailed cleaning history is kept and a map is saved.
The vacuum cleaner monitors the service life of consumables on its own, we can only reset them, whether we have changed them or not.
We send the vacuum cleaner to the far corner of the room.
If necessary, select a square, you can make a lot of them, superimposing one on top of the other, if necessary. Cleaning will be done only in the selected squares.
The robot cleaned 52 square meters in 46 minutes and spent only 13% of the battery charge.
I decided to place this in the screenshots section, since the screen is from the camera, it clearly shows the operation of the laser and IR sensors.
For all skeptics, they say, these robots are not needed, we will clean it ourselves. Ok, yourself, but my robot does it EVERY day, according to the schedule, his back does not hurt, he does not get tired, he just removes his squares. Every three days I empty the container.
I walk barefoot at home, there is no wool, sand and other debris. At home, a small child and a dog. Special skeptics cannot be persuaded, my dear uncle, still cannot understand why I need a dishwasher, it’s easier with my hands.
Front wheel (motor-wheel) Xiaomi QiCYCLE
I got a front wheel from a Xiaomi QiCYCLE bicycle at a ridiculous price. The wheel has physical damage to the rim. apparently caused during transportation. And so it is new, never used. It was difficult to pass by such a spare part, and so I became the owner of a Quixike wheel motor.
From a distance it is almost whole. Only the damaged spokes are visible.
The motor itself is in perfect order, it did not get.
The rim is broken, the blow was not weak. But the tire and the tube are not punctured, there is not even any damage to them. Amazing!
Broken knitting needles. It’s good that apart from the rim and spokes, nothing else was damaged.
The tire and tube are very easy to remove. You just need to deflate, and then pry off the tire with some plate or mounting, after which it easily pulls off the rim.
The rim is lined from the inside with a tape that protects the camera from contact with a metal surface. There are holes with sharp edges in it.
The wheel is almost disassembled. It remains only to deal with the spokes and remove the electric motor.
After dismantling the spokes, we still have the motor that sets the Quickcycle in motion.
We unscrew its cover. It can be unscrewed simply by hand, without effort. Perhaps it will be a little tight at first. because there is a rubber O-ring under the cover. But then everything will go easy.
The threads and the O-ring are visible here. In addition, you can see the ring (outer) gear of the planetary gearbox.
And here is the second part of the gearbox, we will move on to it a little later.
We disassemble the overrunning clutch mechanism located in the cover. In principle, these three screws could have been unscrewed in advance, but it is possible now. Pay attention to the oil seal, which ensures the tightness of the insides of the device.
Look, the screws also have rubber o-rings. Everything is done very reliably, protection from water at the level.
So, the cover is dismantled, and under it is the one-way clutch (idle clutch). It is designed to allow the wheel to rotate freely when driving forward when the motor is not in use. It is analogous to a bicycle ratchet.
The sleeve consists of an inner part (steel color) and an outer part (black). They rotate freely relative to each other. But on the inside, there are three spring-loaded bronze bushings that abut three small steel cylinders. When the inner part rotates clockwise, the cylinders simply slide and do not resist rotation. But if the rotation goes in the opposite direction, then thanks to the bevels, the cylinders will reliably rest against the outer part of the clutch. The clutch of both parts will become rigid, and rotation will begin.
That is why, if you spin the wheel forward on the bike, then it will rotate freely (no grip). But if you turn it in the opposite direction, you will feel resistance and hear the gears of the reducer hum. Precisely because during reverse rotation there is a clutch with the gear mechanism. This is how the overrunning clutch works.
We disassemble the mechanism further. It is necessary to keep the shaft from turning.
Three satellite gears. Notice there are alignment marks on the gears (white stripes). We take out the motor from the case.
We remove the gears, in front of us is the carrier. the last part of the gearbox. And the sun gear in the center.
As you can see, the gearbox is very compact and lightweight. Plus, thanks to the plastic gears, it’s also quiet.
The gears are two-level. Top thread straight, bottom. oblique.
And here is the motor housing. In it, 6 installed magnets are visible on the bottom. They are needed to measure speed. And you can still see the closed shaft bearing.
Unscrew the rest of the screws holding the halves of the motor housing together. By the way, there is a double rubber seal on the shaft. And on top of the side, a white detail is the holder of the Hall sensor, which, thanks to the magnets in the case (previous photo), registers the rotation of the wheel and determines the speed.
The engine itself is finally visible inside. There are 10 magnets on the rotor. Outside, on the stator, there are 12 coils and 3 Hall sensors. They are needed to determine the position of the rotor. Another sensor is on top. This is the sensor that interacts with the magnets on the bottom of the case to determine the rotational speed.
And this little motor, which fits in the hand, pulls both the bike and the rider.
I did not disassemble further, since the entire device is visible even without disassembly. But here is a visual schematic model of the design of a gear motor-wheel.
From the broken wheel, I took out three useful things for QiCYCLE: a tire, a tube and a motor-wheel, and many more spokes. This will all come in handy for the future.
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