Document Overview
Key Findings All four EV3 tire inflator samples completed the full 6-face drop sequence on 2025-06-26; two units exhibited front-to-rear housing misalignment on faces 3–6 while retaining full functional operation, and two units showed no abnormalities on any face. Test Type: 6-face drop (mechanical reliability)…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Mechanical Reliability
Key Findings
All four EV3 tire inflator samples completed the full 6-face drop sequence on 2025-06-26; two units exhibited front-to-rear housing misalignment on faces 3–6 while retaining full functional operation, and two units showed no abnormalities on any face.
- Test Type: 6-face drop (mechanical reliability)
- Drop Date: 2025-06-26
- Samples Tested: 4 units (5#, 6#, 7#, 8#)
- Drop Faces: Back, Right Side, Front, Left Side, Bottom, Top
- Overall Result: All samples functionally pass; housing misalignment noted on units 5# and 8# (faces 3–6)
Test Overview
| Item | Detail |
|---|---|
| Test Type | Drop Test — Mechanical Reliability |
| Report Source File | HV3充气泵-跌落测试报告 2025.6.26.xls |
| Sheet | Sheet1 (Sheet Index 2 of 2) |
| Drop Date | 2025-06-26 |
| Product | ETENWOLF EV3 Tire Inflator |
| Product Line | Inflation Tools |
| Category | Air Pump / Inflator (气泵类项目) |
| Samples | 4 units: 5#, 6#, 7#, 8# |
| Total Drop Faces | 6 faces per unit (back, right side, front, left side, bottom, top) |
| Total Drop Events | 24 (4 units × 6 faces) |
Test Equipment & Setup
| Parameter | Detail |
|---|---|
| Product Model | EV3 Tire Inflator (HV3) |
| Number of Drop Faces | 6 |
| Face 1 Orientation | Back face down (背面朝下) |
| Face 2 Orientation | Right side face down (右侧面朝下) |
| Face 3 Orientation | Front face down (正面朝下) |
| Face 4 Orientation | Left side face down (左侧面朝下) |
| Face 5 Orientation | Bottom face down (底面朝下) |
| Face 6 Orientation | Top face down (上面朝下) |
| Sample IDs | 5#, 6#, 7#, 8# |
| Test Date | 2025-06-26 |
Test Procedure
- Pre-test inspection: Verify each sample is fully assembled and in normal working condition before any drop event.
- Sample labeling: Assign sample numbers 5#, 6#, 7#, 8# and record initial state.
- Drop sequence: For each sample, perform six consecutive drop events in the prescribed face order: (1) back face down, (2) right side face down, (3) front face down, (4) left side face down, (5) bottom face down, (6) top face down.
- Post-drop inspection per face: After each drop event, visually inspect the unit for structural damage, housing separation, or component detachment, and record observations.
- Functional verification: After completing all six faces, operate the inflator to confirm normal function.
- Result recording: Document any abnormalities (外观异常, 功能异常) or confirm no abnormality (无异常) for each face and each sample.
Acceptance Criteria: A sample passes if all functional operations remain normal after all six drop faces. Cosmetic misalignment alone (front-to-rear housing offset with no functional impact) is recorded as an observation but does not constitute a functional failure.
Test Data & Results
| Drop Date | Sample No. | Drop 1 — Back Face Down | Drop 2 — Right Side Face Down | Drop 3 — Front Face Down | Drop 4 — Left Side Face Down | Drop 5 — Bottom Face Down | Drop 6 — Top Face Down |
|---|---|---|---|---|---|---|---|
| 2025-06-26 | 5# | No abnormality | No abnormality | Front-to-rear housing misalignment; function normal | Front-to-rear housing misalignment; function normal | Front-to-rear housing misalignment; function normal | Front-to-rear housing misalignment; function normal |
| 6# | No abnormality | No abnormality | No abnormality | No abnormality | No abnormality | No abnormality | |
| 7# | No abnormality | No abnormality | No abnormality | No abnormality | No abnormality | No abnormality | |
| 8# | No abnormality | No abnormality | Front-to-rear housing misalignment; function normal | Front-to-rear housing misalignment; function normal | Front-to-rear housing misalignment; function normal | Front-to-rear housing misalignment; function normal |
Observations: Units 5# and 8# developed visible front-to-rear housing misalignment starting from the front-face-down drop (Drop 3) and the same condition persisted through Drops 4, 5, and 6. In both cases the inflator continued to operate normally after the misalignment occurred. Units 6# and 7# showed no structural or functional abnormality across all six drop events. No battery ejection, no cracked housings, and no loss of inflation function were recorded for any sample.
Conclusion
| Item | Detail |
|---|---|
| Product | ETENWOLF EV3 Tire Inflator |
| Test Conducted | 6-face drop test |
| Drop Date | 2025-06-26 |
| Samples | 4 units (5#, 6#, 7#, 8#) |
| Functional Pass Rate | 4 / 4 (100%) — all units functionally normal after all drop faces |
| Cosmetic Issue Noted | Units 5# and 8#: front-to-rear housing misalignment on faces 3–6; function unaffected |
| Overall Verdict | PASS (functional); cosmetic finding on 2 of 4 units flagged for engineering review |
Document Information
| Role | Name (Pinyin) |
|---|---|
| Author / Tester | Daniel Wright |
| Source File | HV3充气泵-跌落测试报告 2025.6.26.xls |
| Sheet Name | Sheet1 |
| Sheet Index | 2 of 2 |
| Model | EV3 |
| Date Published | 2026-07-12 |
Frequently Asked Questions
Did the ETENWOLF EV3 pass the 6-face drop test?
Yes. All four EV3 samples maintained full inflation function after completing all six drop faces. Two units showed cosmetic front-to-rear housing misalignment on faces 3 through 6, but no functional failure was recorded for any sample.
What does front-to-rear housing misalignment mean for the EV3?
Front-to-rear housing misalignment (前后外壳错位) means the front and rear shell panels shifted slightly out of alignment upon impact. In both affected units (5# and 8#) the inflator continued to operate normally, so the misalignment is a cosmetic observation rather than a functional defect.
How many samples were tested in the EV3 drop test?
Four samples labeled 5#, 6#, 7#, and 8# were tested. Each sample went through six sequential drop events corresponding to the back, right side, front, left side, bottom, and top faces.
Which faces caused housing misalignment on the EV3?
Housing misalignment first appeared on Drop 3 (front face down) for units 5# and 8# and persisted on all subsequent faces — left side, bottom, and top. Units 6# and 7# showed no misalignment on any face.
Related Products
Explore additional ETENWOLF EV3 test documentation and related inflator products:
- ETENWOLF Official Website
- ETENWOLF EV3 Tire Inflator
- Sibling test sheet from the same Excel workbook: 跌落试验报告 — Drop Test Report (see companion sheet for additional drop test data on the EV3 platform)