Xiaomi's electric brushes have become an integral part of modern cleaning, combining compactness, power and smart functions. These devices are radically different from traditional brushes thanks to the built-in electric motor, battery and control system that provide deep cleaning without unnecessary effort. But how exactly does such a brush work? What happens inside the case when you press the power button?
In this article, we will discuss how Xiaomi’s brushes work at the component level, from the rotation of the brush unit to the power distribution in different modes. You will learn what technologies the manufacturer uses to improve cleaning efficiency, how to properly operate the device to avoid breakdowns, and what nuances should be considered when choosing a model.
Xiaomi electric brush device: the main components
Any Xiaomi electric brush is a complex system where each element performs its function. On the outside, the device may seem simple, but inside, there are technologies that provide high performance.
- 🔋 The lithium-ion battery is a power source that determines battery life. Most models use batteries with a capacity of 2,000 to 5,000 mAh, providing up to 60 minutes of continuous operation.
- 🌀 The brushless motor is the heart of the brush, converting electrical energy into mechanical rotation. Xiaomi models often use engines with a rotation rate of up to 100,000 rpm, which guarantees high suction capacity.
- 🧹 Brush unit – can be made in the form of a roller with a pile (for carpets) or rubber blades (for hard surfaces.
- 📶 Control system - a microcontroller that adjusts power, switches modes and controls battery power. In advanced models (for example, Mi Robot Vacuum-Mop 2), sensors are added to map the room.
- 🗑️ The garbage container is a removable tank where the collected garbage gets into. Some brushes have a cyclone filtration system that prevents filters from clogging.
Xiaomi devices feature a modular design that makes it easy to replace worn parts (such as brushes or filters) that extends the life of the appliance and reduces maintenance costs. However, not all models support such flexibility: for example, budget hand vacuum cleaners can have a non-shatterable body.
The principle of operation: how the electric brush cleans the surface
Xiaomi's electric brush is based on a combination of mechanical and aerodynamic effects. When you turn on the device, what happens is:
- Engine activation: The microcontroller signals the engine to start rotating at a given speed. In power-adjusted models (e.g. Mi Handheld Wireless Vacuum Cleaner 1C), the speed can vary from 20,000 to 100,000 rpm.
- Creating airflow: The rotating motor creates a low pressure area inside the body, which leads to air being sucked in through the brush unit. The higher the rotation speed, the stronger the suction.
- Garbage collection: The brush picks up dust and fine litter from the surface, and the airflow directs it into the container. Large particles (such as crumbs or hair) are captured directly by the brush block.
- Filtration: Air passes through a filter system (usually a HEPA or cyclone separator) where minute particles, including allergens, are trapped. The purified air escapes out.
In robot vacuum cleaners (such as Mi Robot Vacuum-Mop P), the process is complicated by adding a navigation system, scanning the room with a LiDAR sensor, building a map and selecting the optimal cleaning route, while the brush automatically adjusts the power depending on the type of coating (carpet, laminate, tile).
Why is Xiaomi’s electric brush not good at sucking?
Modes of work and their features
Xiaomi electric brushes support several modes of operation that adapt to different tasks, their choice depends on the model, but most devices offer the following options:
| Regime. | Description | Suitable surfaces | Working hours (note) |
|---|---|---|---|
| Eco (Eco) | Minimal power, low noise, suitable for regular cleaning. | Laminate, tile, parquet | 60 minutes |
| Standard. | Balanced mode with optimal power and autonomy ratio. | Carpet, linoleum. | 40 minutes |
| Turbo (Turbo) | Maximum power to remove persistent contaminants, increased noise. | Deep carpets, car seats | 15 minutes |
| Wet cleaning (Mop) | Available in hybrid models (e.g. Mi Robot Vacuum-Mop 2) Combines vacuum cleaner and mop. | Tiles, laminate (not for carpets!) | 50 minutes |
In hand vacuum cleaners (such as the MiJia 1C), switching between modes is done by a button on the case or via the Mi Home mobile app. Robot vacuum cleaners usually automatically select mode depending on the type of coverage, but the user can prioritize settings.
⚠️ Warning: Using Turbo mode on delicate surfaces (such as silk carpets) can cause damage to them.Always check compatibility before cleaning.
How to properly operate Xiaomi electric brush
To make the device last, it is important to follow the rules of operation, here are the key recommendations from the manufacturer and experienced users:
Clean the filter after each use.|Check the brush block for the presence of wound hair|Keep the device in a dry place|Charge the battery to 100% before first use|Avoid cleaning liquids (except models with wet cleaning function)-->
Pay special attention to the battery: lithium-ion batteries do not like full discharge and overheating. The optimal charging mode is to maintain a charge level in the range of 20-80%. If the brush is not used for a long time (more than a month), store it with a charge of about 50%.
To clean the filters, use a soft brush or vacuum cleaner at minimum power. You can wash the filters under running water only if the instructions allow it (in most Xiaomi models, HEPA filters are washed).
💡
If the brush starts to make unusual sounds (squeaking, knocking), immediately turn it off and check for foreign objects in the brush unit or turbine, most often the cause is the hit of small stones or coins.
Frequent faults and ways to eliminate them
Even the most reliable devices can break down. Consider the typical Xiaomi brush problems and how to solve them:
- 🔌 Not switched on: check battery charge, cable integrity and charging station contacts. If the problem persists, try resetting (some models do this by holding the power button for 10 seconds).
- 🌀 Poor suction: Clean the filter, brush unit and check the leakproofness of the garbage container. 90% of the time, the problem is solved by cleaning.
- 🔥 Overheating: Turn off the device and let it cool.Overheating can be caused by clogging of ducts or operating in Turbo mode for more than 10 minutes in a row.
- 📱 Not connected to the app: Update your brush firmware and Mi Home app, reboot your router. Make sure the device is on the same Wi-Fi network as your smartphone.
If a brush makes an error (e.g. flashes red or sounds), refer to the official error code documentation. For example, in Xiaomi robot vacuum cleaners, the E2 error indicates a problem with the collision sensor, and the E5 indicates a clogging of the main brush.
⚠️ Warning: Self-repair of electronics (e.g., replacement of engine or control board) should only be trusted by certified service centers.Incorrect interference may result in loss of warranty or short circuit.
Comparison of Xiaomi electric brushes with analogues of other brands
How do Xiaomi electric brushes differ from Dyson, Roborock or Philips devices? The main advantages are the combination of price, functionality and integration into the Mi Home ecosystem.
| Characteristics | Xiaomi | Dyson | Roborock |
|---|---|---|---|
| Price (hand vacuum cleaners) | 15 000–30 000 ₽ | 35 000–70 000 ₽ | 20 000–40 000 ₽ |
| Max. suction power. | up to 120 AW | up to 150 AW | up to 140 AW |
| Autonomy (in Eco mode) | 60 minutes | 40 minutes | 90 minutes |
| Intellectual functions | Control via Mi Home, voice assistants | Own software, limited integration | Advanced mapping, zoning |
A unique feature of Xiaomi is ecosystem compatibility: electric brushes can be controlled through voice assistants (Alice, Google Assistant) or automate cleaning on a schedule along with other smart devices of the brand (for example, motion sensors or smart sockets).
However, in terms of suction power and filter quality, Xiaomi sometimes loses to premium brands like Dyson, but the Chinese manufacturer offers the best price-performance ratio, especially in the segment of robot vacuum cleaners.
How to choose Xiaomi electric brush for your tasks
When choosing a device, consider the following criteria:
- 🏠 Type of cleaning: Hand vacuum cleaners are suitable for dry cleaning (MiJia) 1C) For wet cleaning, choose a hybrid model (Mi Robot Vacuum-Mop 2).
- 🔋 Autonomy: If you need to clean a large area, pay attention to models with a battery from 4000 mAh.
- 🎛️ Control: for a smart home, choose devices with Mi Home or voice commands.
- 💰 Budget: Up to 15,000 ₽ — Budget hand vacuum cleaners (Mi Handheld Vacuum Cleaner Lite) 15,000-30,000 ₽ — Entry-level robot vacuum cleaners (Mi Robot Vacuum) from 30,000 ₽ — flagship models with laser navigation and wet cleaning.
For apartments with pets, models with HEPA anti-allergenic filters and turbo brushes for hair removal are recommended. If the house has a lot of carpets, look for devices with adjustable suction power.
💡
Xiaomi’s wet cleaning robots (Mi Robot Vacuum-Mop 2) don’t replace a full mop, but they do a great job of keeping clean between general cleanings.