The world is as we see it! Repairing an electric toothbrush Disassembling a braun oral b.

Health oral cavity It is impossible without quality care, and a toothbrush is the first assistant in this. The quality of cleaning with its help depends on the type of paste and the correct execution of manipulations. On the advice of dentists, more and more people are switching to electric toothbrushes. They clean plaque better and thoroughly treat the oral cavity in hard-to-reach places.

Types of Braun Oral-B electric toothbrushes

Electric dental testing Oral brushes B Braun showed their effectiveness in combating the formation of tartar, soft plaque, and the spread of caries. Special attachments help to cope with changes in the shade of enamel from tobacco, coffee, tea, and other stains. Polishing attachments eliminate the unpleasant taste and feeling of “dirty” teeth.

Such devices are not suitable for everyone, so when choosing, it is important to get advice from a dentist. A good doctor will not recommend electric brushes to patients with sensitive enamel, wedge-shaped defects in teeth, bleeding gums, or artificial teeth. The presence of a pacemaker or a tumor in the oral cavity is also a contraindication.

Electric brushes require a power source - batteries or rechargeable batteries. The type of battery determines the power and rotation of the head and the ability to take the device on a trip. Experts advise choosing a device based on the desired functionality.

Mechanical

The cleaning element in mechanical models is a round head with bristles. Depending on the capabilities of the brush, it is capable of rotating in a circular pulsating or reciprocating mode, performing from 5,000 to 30,000 combined movements per minute.

The negative aspects of Oral B Professional mechanical devices are their low power compared to sonic and ultrasonic devices, and the heads move in only one direction. This reduces the capabilities of the device, but does not become a barrier for people who do not need special dental care.

Sonic and ultrasonic

Oral b Braun sound models contain a high-frequency generator of sound vibration waves. The head vibrates at up to 18,000 movements per minute. At the same time, the oral cavity is well cleaned of plaque, and sound vibrations weaken the connection of bacteria with the enamel surface. When cleaning with such models, no special skills are required, and even children can master the process.

In ultrasonic devices, cleansing is based on the active influence of ultrasound on bacteria that are present on the gums and teeth. High frequency waves penetrate 4 mm. deep into the bristles, allowing you to clean the interdental space, gingival grooves, and other hard-to-reach places. Models of ultrasonic brushes remove soft pigment plaque. During operation, the device increases the temperature of surrounding tissues by 1 degree. This promotes active penetration of the healing components of the paste.

No brush can cope with tartar and hard plaque. To remove them, special techniques are used in the dental hygienist’s office.

Recharging the device

Included with the battery device is Charger with two-way charging plug. It is plugged into a socket for electric shavers, or using an adapter into a regular socket. Charging is carried out inductively, without metal elements connecting the handle and the device. Thanks to this, the charging base can be placed wherever it is convenient, including in the bathroom.

The best option for owners of electric brushes is to keep them charged all the time between uses. When first used, the manufacturer recommends fully charging the battery (within 12-16 hours), and then completely discharging it. Then fully charge the battery again and keep it in working condition. This procedure will extend the life of the battery. It is recommended to repeat it once every six months.

When do you need to change batteries?

When it is not possible to connect to a power supply, a full charge of the electric brush should be enough for a week. A decrease in the functionality of the battery indicates that it is exhausting its resource and will soon need to purchase a new one. After how many months is the first replacement needed? Typically, at least 2 years pass from the start of operation to the first battery change. Signs your Oral B battery needs to be replaced:

• The charge is enough for 1-2 teeth brushing;
• the quality of oral cleansing decreases;
• the brush does not vibrate as actively;
• at the wrong moment the device turns off, although it was recently charging.

These signs may indicate other malfunctions of the device. It is better to re-read the instructions again, which describe non-working situations. If the brush is more than two years old, the probable cause of the malfunction is the battery.

You can take the device to service center or turn to a jack of all trades. However, it is much easier and more economical to do the replacement yourself.

Battery replacement method

By default, the battery is considered a non-removable part of the brush, but if necessary, replacing it yourself is not difficult. To do this, you should study the video material on the Internet and follow these instructions:

A similar method is used when changing batteries in any Oral Bee electric toothbrushes (models professional care 500, vitality, many others). Replacement batteries can be ordered online (on Aliexpress, Taobao, Ebay), or purchased in specialized stores. The technique will extend the life of the device and save a lot of money on the purchase of a new brush.

Rechargeable toothbrushes have been clinically proven to remove plaque better than regular toothbrushes. Although they are relatively expensive, with proper care these brushes will last at least 5 years. The brush heads are easy to change, allowing the whole family to share one power handle and still have their own toothbrush.

How does it work

The cleaning action is provided by the orbital movement of the brush head attached to the end of the head holder barrel. The hollow barrel includes a miniature gearbox in its design and is placed on the drive spindle in the handle. The handle, which is made in the form of a non-separable unit, contains an electric motor, an electronic control unit and a rechargeable battery. Some handles have an external switch slider. In other models, the switch button is covered with a flexible rubber-like cover.

Rice. 1 The device of an electric toothbrush.

1. Brush head holder barrel
2. Pen
3. Closed switch
4. Charger

Each brush is equipped with a charger on which the brush is installed to recharge the battery. The charger is also an isolated monobloc design - charging is done inductively and there are no metal contacts electrically connecting the handle and the charger. Therefore, the rechargeable toothbrush can be used completely safely in the bathroom, and the device is equipped with a two-pole plug for electric shavers. If there is no outlet for an electric razor, then the charger can be plugged into any outlet in the house through the appropriate adapter. The charger body may have a compartment for replaceable brush heads.

Battery charge

When charging your new toothbrush for the first time, place it on the charger and the indicator light will illuminate to indicate that it is charging. Leave it to charge for the amount of time indicated in the instructions (usually 16 hours), then remove the brush from the charger and let it run until it runs out of charge.

Rice. 2 Charging an electric toothbrush

Place the brush back on the charger and charge for 16 hours or as directed by the manufacturer. To keep the battery in good working order, it is recommended to repeat this procedure approximately every six months. For optimal use, it is best to keep the brush on the charger in constant recharging- the battery will not take “too much” charge.

Reciprocating motion

To increase the cleaning effect, the latest models have added a reciprocating component to the orbital movement of the brush head.

Two minute warning

Cordless toothbrushes have a built-in timer that, after 2 minutes, causes the brush to work intermittently for several seconds - this is a signal that the minimum recommended duration of brushing has passed. The motor will then operate normally again so that cleaning can continue. For some models, you can select the speed of movement to avoid discomfort with sensitive teeth and gums.

CLEANING THE CORDLESS TOOTHBRUSH

After brushing your teeth, rinse the brush under running water while it is on. Rinse the brush head and holder barrel with water and dry with a paper towel or napkin.

About once a week, remove the brush head and rinse it all the way through the tail to clean the inside. Wipe the drive shaft and handle with a damp cloth. If you have hard water, do this more often to avoid mineral deposits.

Rice. 3 Cleaning an electric toothbrush.

If black plaque begins to accumulate on your brush, do not use toothpaste with a whitening agent. This generally harmless discoloration is caused by bleach deposits in the crevices of your toothbrush.

The deposit may not be noticeable under the slide switch of older models. To clean this area, move the slider back until it disengages and scrub off the residue with a nail brush under running water. When all parts are clean, you need to press the switch and move it forward so that it falls into place. Be careful not to turn the engine backwards.

From time to time, unplug the charger from the outlet and wipe it with a damp cloth. If the device has a unit with a compartment for storing brush heads, then remove it and rinse it under running water. Dry the unit thoroughly before reinstalling it.

Spontaneous turning on of the toothbrush

Water got inside

A crack in the body or a torn rubber band covering the switch button may allow water to enter the brush. This defect cannot be repaired.

Green indicator does not work

When the brush is placed on the charger, the green indicator light should light up. Make sure the charger plug is plugged into the outlet and check the following:

No power supply

If other devices in the same circuit have stopped working, check the panel: there is a blown fuse or a tripped circuit breaker or RCD.

The presence or absence of voltage can be shown by a non-contact tester if you touch the base protrusion on which the toothbrush is placed.

Rice. 4 Bring the non-contact tester to the base protrusion

If it looks like the charger isn't working, then you'll almost certainly have to buy a whole new set.

BRUSH DOESN'T WORK

Water gets inside

If the brush is dropped, its body may burst and water will get inside.

Putting too much force on the spindle when brushing your teeth can damage the seal and cause it to leak.

The rubber coating on the power button may tear and allow water to enter.

If any of these types of damage occurs, the rechargeable toothbrush is likely beyond repair.

Battery won't charge

Rechargeable accumulator battery may fail. First test the charger using a non-contact tester (see above). If there is voltage, ask the service center if it is possible to replace the toothbrush itself.

Faulty charger

See above..

Time and pressure indicators

Brushes are made with colored bristles, which should fade after a certain time, and this is a signal that it is time to change the head. Dentists recommend in any case changing the brush head after three months of use and even earlier if the bristles are bent or deformed.

Rice. 5

Bent bristles are a sure sign of excessive pressure on the brush; Only light guiding pressure is required. The latest models are made taking this circumstance into account. This could be a spring-loaded head that reacts to excessive force, or intermittent operation, etc.

THE MAIN THING IS SAFETY

Batteries should not be disposed of with household waste. If they fail, return them to the manufacturer's service center, where they will be safely disposed of.

Good luck with the renovation!

All the best, writeto © 2009

Over the years of operation, something bad happened to it - the charge began to be enough for one time.

I found a manual on the Internet. I bought the battery on eBay for 850 rubles. It arrived in 10 days. There was the same thing on AliExpress, 400 rubles.

First of all, remove the ring from the top of the brush.
Then we insert the charger into the lower part and twist it until it spins. As soon as it starts spinning worse/slips (there is a plastic screw there), pull the white part down.

We take out the insides by snapping off the two white latches.

We unscrew the display (you need a Torx), a Chinese set of various types of screwdrivers will come in handy

We take out the spring

Unsolder 2 terminals of the old battery

Forming conclusions

Solder a new one and screw on the display.
The brush says there is no charge. After charging (the manual says about a day of charging), everything will show as it should.

Let's see how bad the old Akum is. There are no charge/discharge graphs, only photos. Because crooked software for it is only available for Windows, and even then it hurts. It was easier to take a photo.

Since I removed the brush from charging, I discharge the old battery with an Imax - I get almost 600 mAh. There is no capacity on it, the new one says 2100mAh, we will assume that the old one has a similar capacity.

I charged with a current of 0.2A for quite a long time.

Discharged with a current of 1A (it seems to me that there are more currents in the brush, but oh well)

There is 800mAh left with a discharge of up to 0.8 V. IMHO it does not discharge so deeply in the brush.

A couple of years ago, after trying an electric toothbrush, I discovered Zen.
As in the song - robots work hard, not people (c). There is much less dental plaque, the duration of the procedure is regulated - there is no problem.
My choice then fell on Braun Prof 500, the entry-level product in the professional line, without any bells and whistles.
Then they fell in love with Oral-B and now these brushes come under their brand.
Inside there is a non-removable Ni-MH element, here the manufacturer clearly included “programmed aging”. The memory effect after three years led to the expected - the charge is barely enough for one cleaning.
But as it turned out, a regular AA ni-mh battery is suitable for restoration.

Let's disassemble the device:
- remove the bottom cover (this cover is placed in the charging glass), the cover is spring-loaded - after opening, take out the spring.
- press on the metal pin from above (where we put the attachments), squeezing the entire mechanism down.
- next we disassemble the mechanism itself, we need to unsolder the charging/control unit from the engine:

Internals in analysis

Comparison of native element and donor

Soldering acid

Total, before pushing it back

In 2011, I was lucky enough to snatch a Braun Oral-B Triumph Professional Care 9000. I walked around it in circles for six months, but the price of $100 was above my psychological maximum. Then bam and $50!!! I'm shocked, and so is the toad.

I had to take it. The brush is really cool. I wish I had one like this as a child - there would be fewer holes in my teeth. I buy replacement tips on eBay. Naturally not original. Only once did I encounter slag. Usually the spring is made of stainless steel, but here they slipped it into steel. I threw out the whole set.

Until 2016 there were no problems with the brush. In 2017 the battery began to fail. She thrashed weakly, the charge went away quickly. So I made it until 2018. In the last month there have been glitches with the charge display. Shows 100%, turn on 0%. It's time, I thought. If you type in the model on eBay, the prices for the battery are hell and Israel. Thank you, at least they indicate the size. Set the correct one Google question and received the answer:

standard sizes of batteries and accumulators

It turned out that the Braun Oral-B Triumph Professional Care 9000 contains a Ni-Mn battery of size 4/5A at 1.2 volts and rated capacity 2200mAh. Prices on eBay immediately became reasonable. I bought two PKCELLs for $5. Checked it on iMax-B6. 2700mA is filled, 2200mA is drained at a discharge current of 800mA. The dead one showed 1500mA.

There is an excellent disassembly video on YouTube:

The most important thing is to remove the ring before knocking out the insides:

Installing contacts from a donor to a fresh battery:

A couple of external plans:

Installed on the board