Jianhu JH-Series Touchscreen High-Temperature Thermal Aging Test Chamber with Forced Convection Airflow and Integrated Overcharge/Overdischarge Testing Capability
| Brand | Jianhu |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | JH-Series Touchscreen High-Temperature Thermal Aging Test Chamber |
| Temperature Range | −70 °C to +150 °C |
| Refrigeration Method | Compressor-based Cooling |
| Explosion-Proof Design | Yes |
| Temperature Fluctuation | ±0.5 °C |
| Temperature Uniformity | ±2.0 °C |
| Temperature Deviation | ±2.0 °C |
| Heating Rate | ≤60 min (−70 °C to +150 °C) |
| Cooling Rate | ≤45–80 min (depending on configuration) |
| Interior Dimensions | Customizable (Small / Medium / Large) |
Overview
The Jianhu JH-Series Touchscreen High-Temperature Thermal Aging Test Chamber is an engineered environmental stress test system designed specifically for reliability validation of capacitive and resistive touch interfaces under accelerated thermal aging and electrochemical stress conditions. Built upon a dual-function architecture, it integrates precision temperature control—spanning −70 °C to +150 °C—with synchronized overcharge/overdischarge circuitry to replicate real-world failure modes in portable electronics, automotive HMI systems, and industrial human-machine interface modules. The chamber operates on forced convection thermodynamics: a high-efficiency centrifugal blower circulates conditioned air through a baffle-guided duct network, ensuring uniform thermal distribution across the test volume while minimizing axial and radial gradients. Its explosion-proof enclosure conforms to IEC 60079-0 general requirements for electrical apparatus for explosive gas atmospheres, enabling safe evaluation of battery-integrated touch modules under fault-condition protocols. This system supports accelerated life testing per ASTM E3041 (Standard Guide for Accelerated Life Testing of Electronic Components), ISO 16750-4 (Road vehicles — Environmental conditions and testing for electrical and electronic equipment — Part 4: Climatic loads), and JEDEC JESD22-A108 (Acceleration Factors for Temperature-Humidity-Bias Life Tests).
Key Features
- Wide operational temperature range (−70 °C to +150 °C) with compressor-based refrigeration and PID-controlled resistive heating for stable thermal ramping and dwell accuracy.
- Forced convection airflow system featuring adjustable-speed EC motor-driven blower and optimized internal duct geometry to achieve ≤±2.0 °C temperature uniformity across the working chamber.
- Integrated overcharge/overdischarge test module compliant with IEC 62133-2 and UN 38.3 Section 38.3.2, supporting programmable voltage/current limits, cut-off thresholds, and real-time monitoring of cell voltage, current, and surface temperature.
- Explosion-proof construction certified to Class I, Division 2, Group C/D (per NEC Article 500), including intrinsically safe wiring, pressure-relief venting, and non-sparking internal components.
- Industrial-grade 7-inch capacitive touchscreen controller with multi-segment programmable profiles, data logging at 1-second intervals, and USB export capability for audit-ready traceability.
- Robust thermal insulation using ceramic fiber composite panels (≥1200 °C rated) and double-wall stainless steel construction to minimize heat loss and maintain thermal stability during extended aging cycles.
Sample Compatibility & Compliance
The JH-Series accommodates a broad spectrum of touch-enabled devices—from rigid PCB-mounted controllers to flexible OLED-integrated touch sensors—within customizable interior dimensions (standard options: 400 × 400 × 400 mm up to 1000 × 1000 × 1000 mm). All internal fixtures are non-magnetic and non-outgassing, preserving sample integrity during prolonged exposure. The system complies with key international regulatory frameworks: ISO/IEC 17025:2017 (for accredited lab use), FDA 21 CFR Part 11 (electronic records and signatures), and GLP/GMP-relevant audit trails. It supports test execution under ASTM D3045 (Standard Practice for Heat Aging of Plastics), IEC 60068-2-2 (Test B: Dry Heat), and MIL-STD-810H Method 501.7 (High Temperature), making it suitable for qualification testing in automotive Tier-1 supply chains and medical device OEM validation workflows.
Software & Data Management
The embedded controller firmware provides full-cycle test automation, including multi-step temperature ramps, hold phases, and synchronized electrical stress sequencing. Logged data—including chamber temperature, setpoint deviation, airflow velocity (via optional anemometer integration), and real-time battery telemetry—is timestamped and stored internally with 32 GB flash memory capacity. Export formats include CSV and XML, compatible with LIMS platforms such as LabVantage and Thermo Fisher SampleManager. Optional PC-based software enables remote supervision via Ethernet/Wi-Fi, automated report generation (PDF/Excel), and statistical process control (SPC) charting aligned with ISO 9001:2015 Clause 8.5.2. Audit logs retain user actions, parameter changes, and alarm events for ≥18 months, satisfying FDA 21 CFR Part 11 electronic signature requirements when paired with role-based access control.
Applications
This chamber serves critical functions across R&D, quality assurance, and regulatory submission pathways. In touch sensor development labs, it validates long-term thermal drift of ITO electrode sheet resistance and dielectric layer stability under cyclic thermal load. For battery-integrated displays, it replicates worst-case overcharge scenarios (e.g., >4.45 V/cell for LiCoO₂) while monitoring thermal runaway onset via integrated surface thermocouples. In manufacturing QA, it performs batch-level accelerated aging per AEC-Q200 stress categories for automotive infotainment modules. Academic institutions utilize it for fundamental studies on polymer degradation kinetics in PET-based touch overlays under combined thermal/electrochemical stress. Additionally, it supports compliance testing for UL 62368-1 Annex G (battery safety), EN 62368-1, and China’s GB/T 31241-2014 standard for portable lithium batteries.
FAQ
Does the chamber support simultaneous temperature cycling and electrical stress testing?
Yes—programmable profiles allow concurrent thermal ramping and dynamic overcharge/overdischarge sequencing with independent timing control for each subsystem.
Can the system be integrated into an existing factory MES or SCADA infrastructure?
Yes—Modbus TCP and OPC UA communication protocols are supported for bidirectional data exchange with enterprise manufacturing systems.
What calibration documentation is provided with shipment?
Each unit ships with NIST-traceable calibration certificates for temperature sensors (Class A Pt100), airflow verification report, and electrical test module accuracy validation per IEC 61000-4-5.
Is third-party certification available for explosion-proof rating?
Yes—ATEX and IECEx certification reports can be supplied upon request, subject to configuration-specific review by TÜV Rheinland or SGS.
How is thermal uniformity verified during installation qualification (IQ)?
A 9-point temperature mapping protocol per ISO 14644-3 is included in the IQ/OQ package, with thermocouple placement defined per ASTM E2297 and documented in the final validation report.
