USB Seatbelt Therapy Heater
Budget: £250 – £750 GBP
I have the concept sketched and a clear use-case in mind: a slim, portable heating attachment that slips under a car’s torso belt, delivers therapeutic warmth through three selectable temperature settings, and recharges via USB without ever impeding the restraint’s normal function. I now need an engineer-designer team (or a multidisciplinary freelancer) to transform this idea into a tested, production-ready prototype.
Here’s what matters most to me:
• Ergonomics – the unit must be thin and flexible enough to sit between clothing and the seat-belt webbing without creating bulk or shifting during driving.
• Safety – temperature must stay within therapeutic ranges and meet vehicle interior and electronics standards. The attachment must not compromise seat-belt integrity or trigger air-bag sensors.
• Power and control – an efficient USB-rechargeable battery pack, simple three-level heat selector, and clear battery/temperature indicators.
• Materials – soft, durable, flame-retardant fabric or silicone outer layer that can handle constant friction and occasional spills.
Deliverables I expect:
1. Concept refinement with sketches or renders illustrating the attachment on a typical three-point belt.
2. CAD files, enclosure design, and full bill of materials including heating elements, battery, controller, and fastening method.
3. Electrical schematics, firmware (if a microcontroller is used), and a simple test jig for cycling through Low–Medium–High.
4. A functional prototype I can strap into my vehicle for real-world validation, plus a brief test report documenting heat curves, recharge time, and safety checks.
I’ll provide feedback quickly at each stage so we can iterate fast and keep the device sleek, road-safe, and genuinely soothing.
Here’s what matters most to me:
• Ergonomics – the unit must be thin and flexible enough to sit between clothing and the seat-belt webbing without creating bulk or shifting during driving.
• Safety – temperature must stay within therapeutic ranges and meet vehicle interior and electronics standards. The attachment must not compromise seat-belt integrity or trigger air-bag sensors.
• Power and control – an efficient USB-rechargeable battery pack, simple three-level heat selector, and clear battery/temperature indicators.
• Materials – soft, durable, flame-retardant fabric or silicone outer layer that can handle constant friction and occasional spills.
Deliverables I expect:
1. Concept refinement with sketches or renders illustrating the attachment on a typical three-point belt.
2. CAD files, enclosure design, and full bill of materials including heating elements, battery, controller, and fastening method.
3. Electrical schematics, firmware (if a microcontroller is used), and a simple test jig for cycling through Low–Medium–High.
4. A functional prototype I can strap into my vehicle for real-world validation, plus a brief test report documenting heat curves, recharge time, and safety checks.
I’ll provide feedback quickly at each stage so we can iterate fast and keep the device sleek, road-safe, and genuinely soothing.