What are the parts that make up a vape?

A complete electronic cigarette, whether it is a complex DIY large vaporizer device or a compact disposable product, can be summarized into two main components: the "vaporization unit" and the "power and control unit".
The picture below clearly shows the structure of a typical oil-injecting electronic cigarette (such as a refillable type or a large smoke device):

Now let's break down each of these components one by one:
?? The first major section: Atomizer / Tank
This is the core component of the e-cigarette, responsible for heating the e-liquid and vaporizing it into inhalable vapor. Depending on the device type, the atomizer / tank usually includes:
Mouthpiece: The component through which you directly come into contact with and inhale the vapor.
Oil storage chamber (Tank / Pod): A container used to store the tobacco oil. The material is usually PCTG plastic or glass. For some small electronic cigarettes, the cartridge itself is already a storage chamber for the oil.
Atomizer Core / Coil: This is the heart of the entire device, responsible for converting electrical energy into thermal energy to heat the e-liquid. It is mainly composed of two parts:
Heating Element: Usually, it is a coil or mesh made of alloys such as iron-chromium or nickel-chromium, which generates heat when energized.
Wicking Material: This material evenly absorbs the e-liquid from the storage chamber onto the heating element. Common types include cotton cores and ceramic cores. Cotton cores have a fast heating speed and strong flavor burst; ceramic cores, on the other hand, provide more uniform heating and a smoother taste, better able to reproduce the flavor of the e-liquid.
Base and Sealing Silicone: Used to fix the atomizer core and achieve sealing through components such as silicone rings, preventing the leakage of e-liquid.
?? The second major section: Power Supply and Control Components (Battery / Mod)
This section provides power for the atomizer and controls its operation, serving as the "brain" and "energy center" of the device.
Battery: Supplies power to the entire device. The majority of electronic cigarettes use rechargeable lithium-ion or lithium-polymer batteries.
Control Circuit (PCBA / Board): This is the core of the device's control, integrating multiple functions. The main components include:
Airflow Sensor (Airflow Detector): This is the "automatic switch" of the electronic cigarette. It can sense the changes in airflow when you inhale and automatically activate the battery to start working. Traditional devices mostly use capacitive microphones, while nowadays there is a growing trend towards more sensitive and stable silicon microphones (MEMS sensors).
Control Chip and Boost Circuit: This is the management brain of the device, responsible for precisely controlling the output of the battery to the vaporizer core based on the power or temperature you set, to ensure the best taste and smoke quantity.
Operating Components (Buttons & Display): The buttons are used for turning on/off the device or starting the ignition (in manual mode). Many advanced devices also come with a screen, which is used to display key information such as battery level, power, and resistance.
Casing and Connector:
Casing: It wraps and protects all the internal electronic components. The materials can vary, such as plastic, aluminum alloy, etc.
510 interface (510 Connector): This is the most common universal interface currently in use, used to connect the nebulizer and the battery rod. Your nebulizer is screwed onto the battery rod through this threaded interface.
?? Differences among different types of devices
Although the core components are similar, their forms vary slightly on different devices:
Device type Atomizer form Power supply characteristics
Single-use electronic cigarette Combines the vaporization core and oil storage chamber, and cannot be replaced. Both the battery and control circuit are integrated and cannot be charged; the device is discarded once used.
Pod System (Refillable Pen) The cartridge is an independent unit, containing the vaporization core and oil storage chamber. The battery rod is separate and reusable, connected to the cartridge by magnetic attachment or snap fit.
Box Mod (Big Smoke Device/Box Mod) Usually uses replaceable finished vaporization cores or rebuildable vaporizers (RDA/RTA), and players can make their own heating coils. The main unit has a high power output, usually with a screen and buttons, and is fully functional, allowing adjustment of power, temperature, etc.
??️ Common Terminology Cross-reference
Atomizer: The entire part that generates vapor.
Atomizing Core (Coil): A collective term for heating coils and oil-conducting materials, it is a consumable item.
Oil-wicking cotton (Wick): A material used for absorbing and conducting the e-liquid.
Pod/Cartridge: In small vaping devices, it is an independent component that integrates the atomizing core and the e-liquid.
Electronic cigarette main unit (Mod): Generally refers to the adjustable power device body, which is an advanced version of the "battery stick".
Vapor liquid (E-liquid/E-juice): A liquid that is atomized, its main components include propylene glycol (PG), vegetable glycerin (VG), nicotine and flavoring.
PG/VG: The base components of e-liquid. PG mainly contributes to providing the "throat hit" and carrying the fragrance, while VG mainly contributes to generating a large amount of vapor.
510 interface: A universal standard interface for connecting the nebulizer and the battery rod.
?? Maintenance and Safety Tips
Replacing the atomizer: When you notice that the taste becomes weak, there is a burnt smell, or the amount of smoke decreases significantly, it's time to replace the new atomizer.
Safe charging: Please make sure to use the charging cable provided with the device or the one recommended by the manufacturer. Avoid using chargers with excessive current to prevent damage to the battery. Also, do not leave for too long during the charging process.
Safe Purchase: For your safety during use, please try to purchase equipment with quality guarantees from official channels, especially for the battery part. Avoid using "mechanical levers" without protective circuits, especially for beginners.
I hope this disassembly will help you have a clearer understanding of the structure of the e-cigarette. If you want to know how to determine when it's time to replace the atomizer, or want to know exactly how to set the power to achieve a better experience, feel free to ask me at any time.