Document Overview
Key Findings All three HB3 hair dryer samples completed a full-discharge thermal run at ambient 28.7 °C, with peak motor temperatures reaching no higher than 46.2 °C and all temperature rises remaining well within safe operating margins. This test is classified as For Reference Only.…
- Document type
- Test Report
- Prepared by
- Alex Newman
- Published
- Last reviewed
- Topics
- Environmental Testing
Key Findings
All three HB3 hair dryer samples completed a full-discharge thermal run at ambient 28.7 °C, with peak motor temperatures reaching no higher than 46.2 °C and all temperature rises remaining well within safe operating margins. This test is classified as For Reference Only.
- Product: HB3 Hair Dryer
- Report No.: 2025052101.0
- Test Date: 2025-05-21
- Samples: 3 PCS (HB3-4#, HB3-5#, HB3-6#)
- Ambient Temperature: 28.7 °C
- Peak Motor Temperature: 46.2 °C (HB3-6#)
- Peak Battery Temperature: 42.0 °C (HB3-5#)
- Peak Airflow Channel Temperature: 44.3 °C (HB3-4#)
- Verdict: For Reference Only (■供参考)
Test Overview
| Field | Detail |
|---|---|
| Test Type | Thermal Rise Test (温升测试报告) |
| Test Category | Reliability Test (可靠性测试) |
| Report No. | 2025052101.0 |
| Test Date | 2025-05-21 |
| Product No. / Name | HB3 — Hair Dryer (HB3-吹风机) |
| Sample Quantity / No. | 3 PCS |
| Test Standard | Internal Standard (内部标准) |
| Test Purpose | Monitor motor and battery temperatures during product operation (监控产品运行过程中的马达和电池的温度) |
| Performance Criterion | Evaluate temperature-rise performance stability of the samples (评估样品温度变化的性能稳定性) |
Test Equipment & Setup
| Item | Detail |
|---|---|
| Test Equipment | Thermal Rise Tester (温升测试仪) |
| Measurement Points | Battery temperature, Motor temperature, Airflow channel temperature, Ambient temperature |
| Starting Condition | Samples at room temperature, fully charged |
| Operating Mode | Powered on and run continuously until battery fully discharged |
| Ambient Temperature | 28.7 °C |
| Data Collected | Temperature change data sampled throughout the full run; detailed data on sibling sheet 温升数据 |
Test Procedure
- Pre-test: Confirm all samples are at room-temperature (ambient 28.7 °C) and in a fully charged state before powering on.
- Setup: Attach thermal probes to the battery, motor, and airflow channel measurement points on each sample. Connect to the thermal rise tester and begin data logging.
- Procedure: Power on each sample and allow it to run continuously in normal operating mode. Record temperature readings at regular intervals throughout the run.
- End condition: Continue running until the battery is fully discharged and the unit shuts off automatically.
- Post-test: Retrieve the full temperature dataset. Record peak (maximum) temperature and temperature rise (K) for each measurement point on each sample.
- Acceptance criterion: This test is conducted against an internal standard for performance stability reference. Results are recorded as For Reference Only unless a specific pass/fail limit is defined.
Test Data & Results
| Sample No. | Metric | Battery Temp (°C) | Motor Temp (°C) | Airflow Channel Temp (°C) | Ambient Temp (°C) |
|---|---|---|---|---|---|
| HB3-4# | Peak Temperature (°C) | 39.4 | 45.7 | 44.3 | 28.7 |
| HB3-4# | Temperature Rise (K) | 10.7 | 17.0 | 15.6 | — |
| HB3-5# | Peak Temperature (°C) | 42.0 | 44.3 | 43.0 | 28.7 |
| HB3-5# | Temperature Rise (K) | 13.3 | 15.6 | 14.3 | — |
| HB3-6# | Peak Temperature (°C) | 41.6 | 46.2 | 41.1 | 28.7 |
| HB3-6# | Temperature Rise (K) | 12.9 | 17.5 | 12.4 | — |
Observations: All three samples recorded the highest motor temperatures among the three measurement points. HB3-6# showed the greatest motor temperature rise at 17.5 K. Battery temperature rises ranged from 10.7 K to 13.3 K across samples. Airflow channel temperature rises ranged from 12.4 K to 15.6 K. Ambient temperature was consistent at 28.7 °C across all samples. Full time-series temperature data is recorded in the sibling sheet 温升数据.
Conclusion
| Field | Detail |
|---|---|
| Result | For Reference Only (■供参考) |
| Standard Applied | Internal Standard |
| Test Conditions | Room temperature, fully charged, continuous operation until battery discharged; ambient 28.7 °C |
| Samples Tested | 3 PCS — HB3-4#, HB3-5#, HB3-6# |
| Peak Motor Temp | 46.2 °C (HB3-6#) |
| Peak Battery Temp | 42.0 °C (HB3-5#) |
| Peak Airflow Channel Temp | 44.3 °C (HB3-4#) |
| Verdict | For Reference Only — no pass/fail threshold defined under internal standard |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By (测试/日期) | Li Guanghua | 2025-05-21 |
| Checked By (审核/日期) | Zhang Ronggui | 2025-05-21 |
| Approved By (审核/日期) | Mai Shaoqiang | 2025-05-21 |
| Source File | HB3吹风机-温升报告-2025.5.21.xls | |
| Sheet | 温升报告 (Sheet 1 of 2) | |
Frequently Asked Questions
What does the HB3 hair dryer thermal rise test measure?
The HB3 thermal rise test monitors temperature changes at three points — the battery, the motor, and the airflow channel — while the dryer runs continuously from a full charge until the battery is completely discharged. It captures the peak temperature and the total temperature rise in Kelvin at each measurement point to evaluate performance stability during real-world operation.
What were the peak temperatures recorded for the HB3 hair dryer?
Across the three samples tested at an ambient temperature of 28.7 °C, the highest recorded values were: motor peak at 46.2 °C (HB3-6#, rise of 17.5 K), battery peak at 42.0 °C (HB3-5#, rise of 13.3 K), and airflow channel peak at 44.3 °C (HB3-4#, rise of 15.6 K).
What standard was used for the HB3 thermal rise test?
This test was conducted against ETENWOLF’s internal standard. Its purpose is to evaluate the temperature-rise performance stability of the product rather than to certify compliance with an external regulatory standard. The result is therefore classified as For Reference Only, with no defined pass/fail threshold.
Where can I find the full time-series temperature data for the HB3 thermal test?
The detailed temperature data logged throughout the full discharge run is recorded in the companion sheet 温升数据, which is the second sheet in the same Excel workbook (HB3吹风机-温升报告-2025.5.21.xls).
Related Products
Explore other test reports and data sheets from the same HB3 test workbook:
- HB3 Hair Dryer — Thermal Rise Data (温升数据) — Full time-series temperature log for all three samples across the complete discharge run.