The "
3.3kW on-board charger" is one of the key components used for charging electric vehicles (EVs) or plug-in hybrid electric vehicles (PHEVs). Its function is to convert alternating current (AC) from an external power source into direct current (DC) and charge the vehicle's high-voltage battery pack.
The relatively low cost of the 3.3kW charger makes it widely used in some electric and hybrid vehicles, as it has a lower manufacturing cost and provides a charging speed sufficient for daily use needs.
This type of charger is usually compact and does not take up too much space in the vehicle, making it suitable for urban daily driving and regular home charging.
The
3.3kW On Board charger is compatible with most household electrical grids and can be used with standard household outlets without requiring additional equipment upgrades.
However, with the increasing popularity of new energy and hybrid vehicles, as well as the growing demand for outdoor power use, waterproofing has become one of the important factors for travel.
Why does an on-board charger need to be waterproof?
Waterproofing the on-board charger allows us to confidently handle a variety of terrains and weather conditions, including urban roads, rural areas, and even extreme weather conditions (such as high temperatures, rain, snow, etc.). As a crucial electrical component of electric vehicles, the charger must be able to withstand the challenges posed by different climatic environments, especially when used outdoors, where it is often exposed to rain, snow, moisture, or even muddy conditions. Without waterproofing, moisture could seep inside the charger, potentially causing short circuits, damage, or even fires.
With the growing popularity of electric vehicles, more users are choosing to charge outdoors (such as at public charging stations or home chargers outside garages). Charging stations are often exposed to the elements, and especially during rainy or snowy days, an on-board charger without waterproof features would face a significantly higher risk of failure.
Everything You Need to Know About the HK-J Waterproof OBC
The "
HK-J Waterproof OBC" is an on-board charger (OBC) with waterproof features, typically used in electric vehicles (EVs) or plug-in hybrid electric vehicles (PHEVs). Its primary function is to convert external alternating current (AC) into direct current (DC) to charge the vehicle's high-voltage battery, while its waterproof design makes it suitable for use in harsh environmental conditions.
Main Functions
AC to DC Charging: Like other on-board chargers, the basic function of the HK-J Waterproof OBC is to convert external AC power sources (such as household power or charging stations) into DC power suitable for charging the vehicle’s battery.
Waterproof Design: This charger features waterproof capabilities, allowing it to function in various damp or harsh environments, ensuring the vehicle can charge under all weather conditions. It is especially useful in high-humidity or heavy rain environments.
Waterproof Features
The HK-J Waterproof OBC meets a high standard of waterproofing (IP67). This rating indicates that the charger can be submerged in water up to a depth of 1 meter for up to 30 minutes without being damaged. This means the charger can withstand almost any heavy rainstorm, and even in short-term flooded environments, it ensures no risk of electrical shock to the driver while maintaining the vehicle's performance unaffected by rainwater.
Corrosion-Resistant Design
In addition to being waterproof, the charger is also designed to resist corrosion. This is particularly important in coastal or rainy areas, helping to extend the charger’s lifespan.
Advantages
Reliability: The waterproof feature ensures that the vehicle can continue to charge in rainy, snowy, or other wet conditions, enhancing the reliability of the charging equipment.
Wide Range of Applications: For electric vehicle users who frequently drive in outdoor or harsh environments (e.g., commercial vehicles, electric trucks), the waterproof on-board charger guarantees long-term use without weather restrictions.
Increased Durability: The waterproof design helps the charger withstand more environmental impacts, reducing the risk of damage or failure caused by water ingress.
With these features, the HK-J Waterproof OBC is a robust solution for electric vehicles and hybrid vehicles, ensuring safe and reliable charging even under challenging weather conditions.
Parameter specification
Basic specification |
Terms | 7Parameter |
Input voltage range | AC90V~264V |
Frequency | 45Hz~65Hz |
Power factor | ≥0.99 |
Efficiency at full loading | ≥93% |
Mechanical impact and vibration grade | QC/T 895－2011 |
IP grade | IP67 |
Operation temperature | - 40℃～85℃ |
Storage temperature | - 40℃～105℃ |
Charging control | CAN or Enable |
Protection | Output over-voltage, over-current, short-circuit, polarity reverse, input low-voltage, input over-voltage, over-temperature |
Size | 222(length) x 109(width) x 125(height)(fan-cooled) |
N.W. | 5.2kg |
Cooling way | Enforce Air Cooling，Liquid-cooling |
The
HK-J Waterproof OBC is ideal for commercial electric vehicles, such as electric trucks and electric buses, which are often required to operate in a variety of weather conditions, especially in more challenging environments. For example, vehicles working in construction sites, mining areas, and similar locations may encounter significant amounts of moisture, rain, or dirt. The waterproof on-board charger ensures that the vehicle can continue to charge and operate reliably in these tough conditions.
If charging stations are set up in outdoor environments, using a waterproof on-board charger can effectively prevent damage to the equipment caused by harsh weather conditions, ensuring the charging system remains operational even in adverse weather.
FAQs
Why does an on-board charger need a waterproof function?
An on-board charger needs a waterproof function because electric vehicles are often used in a variety of environmental conditions, including rainy days, snowy weather, or humid environments. The waterproof design prevents moisture from entering the charger, avoiding electrical short circuits, corrosion, or damage to the device. This ensures that the charger can continue to function properly even in outdoor or harsh weather conditions.
A waterproof on-board charger typically has an IP67 or higher protection rating. IP67 means the device can be submerged in water up to 1 meter deep for 30 minutes without damage. A high protection rating ensures the charger is resistant to water, moisture, and external contaminants, enhancing the safety and durability of the device.
How is a waterproof on-board charger different from a regular charger?
The main difference between a waterproof on-board charger and a regular charger is the special waterproof and dustproof design, allowing it to operate continuously and reliably in humid or harsh environments. Regular chargers typically lack these protective features, making them vulnerable to water, moisture, or external contaminants, which could lead to short circuits or damage. Waterproof chargers, therefore, are better suited for outdoor use or special working conditions.
In what environments can a waterproof on-board charger be used?
A waterproof on-board charger is suitable for a variety of environments, especially those with high humidity or extreme weather conditions. For example, it can function properly in rainy or snowy weather, coastal areas, mountainous regions, construction sites, and other harsh environments. It is particularly ideal for commercial electric vehicles (such as electric trucks, electric buses, etc.) that need to operate in external environments for extended periods.
