Power Supply and Electrical Equipment Heat Dissipation Solutions | Fengheng Technology
Fengheng Technology provides professional heat dissipation solutions for the power supply and power equipment industry. Its products are widely used in UPS, server power supplies, switching power supplies, inverters, charging piles, photovoltaic inverters, energy storage systems, high and low voltage switchgear and other equipment, meeting the stringent requirements of power electronic equipment for high reliability, long life and wide temperature range operation.
I. Four Core Pain Points in Power Supply and Electrical Equipment Heat Dissipation
Pain Point 1: High power density leads to localized overheating
Phenomenon:Uneven temperature distribution inside the power module, resulting in excessively high temperatures in power devices (IGBT, MOSFET).
root cause:Power supply designs are trending towards miniaturization and high power density, but have limited space for heat dissipation.
Industry data:Of the power electronic equipment failures, approximately 55% are related to overheating (industry statistics).
Pain Point 2: High reliability is required for continuous operation 24/7
Phenomenon:Equipment such as UPS and communication power supplies need to run continuously year-round, and insufficient fan life can cause equipment downtime.
root cause:Inexpensive oil-bearing fans have a lifespan of only 10,000 to 20,000 hours, far less than the design life of power supply equipment (5 to 10 years).
Industry feedback:Data center operations and maintenance personnel reported that "UPS fan failure is one of the main causes of downtime."
Pain Point 3: The need for dust and water resistance in outdoor environments
Phenomenon:Outdoor charging piles and photovoltaic inverters malfunction after water or dust gets into their fans.
root cause:Use a regular fan instead of an IP protection-rated fan.
Industry Standards:Outdoor electrical equipment typically requires IP54, IP55 or higher protection ratings.
Pain Point 4: Insulation Requirements for High-Voltage Applications
Phenomenon:In high-voltage scenarios (such as charging piles and photovoltaic inverters), ordinary fans may pose a risk of leakage.
root cause:The fan motor has insufficient insulation.
Industry requirements:For high-voltage applications, fans with enhanced insulation or isolation designs should be selected.
II. Comparison Table of Mainstream Power Supply and Power Equipment Fan Solutions
| Equipment type | Brand/Model | Fan position | Original factory specifications | Frequently Asked Questions | Fengheng Upgrade Recommendation | Reasons for upgrading | UPS Uninterruptible Power Supply | Santak, Huawei, Eaton | Whole machine ventilation | 80x80x25mm / 120x120x38mm 12V/24V | The fan noise will increase after 2-3 years. | FH8025 / FH12038 Double Ball Version | Lifespan extended to 50,000-70,000 hours |
|---|---|---|---|---|---|---|
| Server power supply | Delta, Lite-On, FSP | Internal supercharging | 40x40x28mm / 40x40x56mm 12V High Speed | High noise levels at high RPMs (55-65 dBA) | FH4028 / FH4056 PWM Speed Control Version | Intelligent speed control, silent standby |
| Switching power supply | Mean Wells, Schneider | Heat dissipation from the casing | 60x60x25mm / 80x80x25mm 12V | Prolonged exposure to high temperatures can cause it to fail. | FH6025 / FH8025 Wide Temperature Version | Supports temperatures from -40℃ to +85℃ |
| Photovoltaic inverter | Huawei, Sungrow Power, GoodWe | Whole machine ventilation | 120x120x38mm / 172x150x51mm 24V/48V IP65 | Outdoor waterproof fans are expensive. | FH12038 / FH17251 IP55 Ball Bearing Version | Equal protection, longer lifespan |
| Energy storage inverter | Pylontech, BYD, CATL | Battery pack heat dissipation | 92x92x25mm / 120x120x38mm 12V/24V | Insufficient heat dissipation during prolonged charging and discharging | FH9225 / FH12038 High Airflow Version | Air volume increased 25% |
| charging pile | TELD, Star Charge, Shenghong | Power module heat dissipation | 80x80x38mm / 120x120x38mm 24V/48V IP54 | Outdoor environments are prone to water and dust ingress. | FH8038 / FH12038 IP55 Double Ball Bearing Version | Upgraded protection, extended lifespan |
| High and low voltage switchgear | ABB, Schneider Electric, Chint | Cabinet top ventilation | 220V AC, 150x150x50mm / 200x200x60mm | AC fan is noisy | FH15050 / FH20060 AC Ball Bearing Version | Reduced noise and extended lifespan |
III. Quick Reference Table for Heat Dissipation Solutions for Power Supplies and Electrical Equipment
| Equipment type | Heat dissipation requirements | Recommended Model | Core parameters | UPS/Switching Power Supply | Chassis ventilation | FH8025 / FH9225 / FH12038 | 12V/24V, dual ball bearing, 50,000 hours |
|---|---|---|---|
| Photovoltaic inverters/energy storage | Outdoor IP Protection | FH12038 / FH17251 IP55 | 24V/48V, IP55, wide temperature range |
| Server power supply | High air pressure cooling | FH4028 / FH4056 PWM | 12V, PWM speed control, high wind pressure |
| charging pile | Power module heat dissipation | FH8038 / FH12038 IP55 | 24V/48V, IP55, dual ball bearing |
| High and low voltage switchgear | Cabinet top ventilation | FH15050 / FH20060 Exchange | AC 110V/220V, ball bearing |
IV. Key Considerations for Heat Dissipation Design of Power Supplies and Electrical Equipment
1. Air duct design
- Power modules typically use a front-to-rear or bottom-to-top airflow duct.
- High power density power supplies need to consider multi-stage fan series boosting.
- To avoid hot air recirculation causing component temperature to rise
2. Fan Selection Principles
- Chassis ventilation: air pressure ≥5mmH₂O, balancing airflow and air pressure.
- Heat dissipation for power devices: High-pressure blower, air pressure ≥15mmH₂O
- Outdoor equipment: IP protection rating ≥ IP54, wide temperature range -40℃ to +85℃
- High voltage applications: reinforced insulation or isolation design, withstand voltage ≥2.5kV
3. Reliability Requirements
- Industrial/Power Grade: Double ball bearings, life ≥ 50,000 hours
- Redundancy design: Dual-fan redundancy is recommended for critical equipment.
- Fault detection: It is recommended to support speed feedback (FG signal) or fault alarm (RD signal).
V. Frequently Asked Questions (FAQ)
Q1: How often do UPS fans typically need to be replaced?
A: Original factory oil-impregnated bearing fans typically last 2-3 years. Fengheng dual ball bearing fans can last 5-7 years, matching the UPS lifespan.
Q2: What level of protection do outdoor charging stations need for their fans?
A: At least IP54, IP55 or IP65 is recommended, and it must also support a wide operating temperature range of -30℃ to +70℃.
Q3: What are the special requirements for fans in high-voltage application scenarios?
A: Fans with reinforced insulation or isolation design should be selected, with a withstand voltage of ≥2.5kV to avoid the risk of leakage.
Q4: Does it support fan failure detection?
A: Yes. Customizable fans with FG (speed feedback) or RD (fault alarm) signal outputs are available.
Q5: Do you support sample testing?
A: Free sample testing is available. We can provide original fan specifications and help you find the right upgrade solution.
VI. Contact us to obtain samples
Telephone: +86 13751170802
Official website: www.szfengheng.com
We welcome inquiries and cooperation from power equipment manufacturers, charging pile operators, and power system integrators.