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Designing Refrigerator Components
Over the past decade, refrigeration design complexity has rapidly evolved. Remote monitoring, advanced UIs and even camera integration are becoming features consumers expect in refrigerators. Design engineers must add new functionality into limited space while also considering a variety of other design requirements.
As engineers incorporate more features and functionality into refrigeration design, they face challenges to ensure their designs are meeting safety and environmental compliance, as well as manufacturing ergonomic requirements, all while accelerating design cycles. They need to consider components that meet these demanding requirements with features such as glow wire compliance, lower mating forces, signal integrity, smaller PCB footprints, locking mechanisms and pre-assembled solutions.
Through extensive engineering expertise, Molex offers innovative and high-quality connectivity solutions that meet the unique requirements of each refrigeration sub-system.
Featured Products
Main Electronics Connectors
Refrigerator manufacturers identify operator ergonomics as a priority on the assembly line. To reduce the risk of fatigue and injury, manufacturers prefer connectors that offer a low mating force and maintain a high-quality connection. Molex connectors support operator ergonomic requirements and deliver secure and reliable connections for consistent product performance.
Configuration | Pitch | Circuits | Max. Current Rating | |
---|---|---|---|---|
Micro-One Connectors | Wire-to-board | 2.00mm | 2 to 8 | 4.0A |
KK Plus Connectors | Wire-to-board | 2.50mm 3.00mm 3.96mm |
2 to 8 | 11.0A |
Nano-Fit Connectors | Wire-to-wire Wire-to-board |
2.50mm | 2 to 16 | 8.0A |
Mini-Lock Connectors | Wire-to-wire Wire-to-board |
2.50mm | 2 to 15 | 3.5A |
Micro-Fit Connectors | Wire-to-wire Wire-to-board |
3.00mm | 2 to 22 | 10.5A |
Mini-Fit Connectors | Wire-to-wire Wire-to-board Board-to-board |
4.20mm | 2 to 40 | 20.5A |
CP-6.5 Connectors | Wire-to-wire Wire-to-board |
6.50mm | 2 to 6 | 12.5A |
Mega-Fit Connectors | Wire-to-wire Wire-to-board |
5.70mm | 2 to 12 | 30.0A |
DuraClik Connectors | Wire-to-board | 2.00mm | 2 to 15 | 3.0A |
User Interface Connectors
Advanced UIs are a rising trend in home appliance design and consumers expect functionality that is intuitive and easy to use. To meet these demands, engineers must design higher density PCBs that can accommodate increased functionality. Molex components are designed with signal integrity, touch controls and space in mind to help design engineers deliver a simple, yet intuitive user experience.
Configuration | Pitch | Circuits | Actuator Style | |
---|---|---|---|---|
Easy-On FFC/FPC Connectors | Wire-to-board | 0.20mm to 2.00mm | 2 to 120 | Front flip, back flip, non-ZIF, slider, flexi-latch, one-touch |
Premo-Flex Flat-Flexible Cable (FFC) | Cable | 0.25mm to 2.54mm | 3 to 120 |
Configuration | Pitch | Circuits | Max. Current Rating | |
---|---|---|---|---|
Micro-Lock Plus Connectors | Wire-to-board | 1.25mm 2.00mm |
2 to 42 2 to 16 |
3.6A 4.7A |
Nano-Fit Connectors | Wire-to-wire Wire-to-board |
2.50mm | 2 to 16 | 8.0A |
Mini-Lock Connectors | Wire-to-wire Wire-to-board |
2.50mm | 2 to 15 | 3.5A |
KK Plus Connectors | Wire-to-board | 2.50mm 3.00mm 3.96mm |
2 to 8 | 11.0A |
SlimStack Connectors | Board-to-board | 0.35mm to 1.25mm | 6 to 240 | 18.0A |
Wire Harnesses
With increasing consumer expectations for new refrigerator functionality, design engineers are challenged to future-proof refrigerator electronics designs while ensuring speed to market. The use of pre-assembled wire harnesses can streamline upgrades, minimize supply chain challenges and accelerate time to market. Molex cable assemblies are efficient and reliable solutions to meet complex cabling requirements associated with updates, enhancements or new model launches.
Pitch | Circuits | Max. Current Rating | |
---|---|---|---|
Mini-Fit Cable Assemblies | 4.20mm | 2 to 40 | 20.5A |
Micro-One Cable Assemblies | 2.00mm | 2 to 8 | 4.0A |
Nano-Fit Cable Assemblies | 2.50mm | 2 to 16 | 8.0A |
KK Plus Cable Assemblies | 2.50mm 3.00mm 3.96mm |
2 to 8 | 11.0A |
Mega-Fit Cable Assemblies | 5.70mm | 2 to 12 | 30.0A |
Climate Control Connectors
Refrigerator designs demand effective climate control systems that maintain precise temperatures and deliver reliable performance. Molex provides a broad range of connectors designed for high reliability with features such as terminal position assurance and latching devices to safeguard against mis-mating or accidental disconnections, helping to reduce device failure.
Configuration | Pitch | Circuits | Max. Current Rating | |
---|---|---|---|---|
Sabre Connectors | Wire-to-wire Wire-to-board |
7.50mm | 2 to 8 | 18.0A |
VersaBlade Connectors | Wire-to-wire | 6.20mm | 1 to 9 (standard version) 2 to 4 (high-temperature version) |
15.0A |
Micro-Fit+ Connectors | Wire-to-wire Wire-to-board |
3.00mm | 2 to 24 | 13.0A |
Mini-Fit Connectors | Wire-to-wire Wire-to-board Board-to-board |
4.20mm | 2 to 40 | 20.5A |
Lighting Connectors
In refrigerator design, lighting solutions must provide optimal illumination while also adhering to space constraints imposed by the appliance’s electrical architecture. For design engineers, this requires a careful selection of components that balances space-saving characteristics with a variety of configurations. Molex offers design engineers a portfolio of connectors that feature small PCB footprints with an array of options to provide design flexibility.
Configuration | Pitch | Circuits | Max. Current Rating | |
---|---|---|---|---|
Micro-Lock Plus Connectors | Wire-to-board | 1.25mm 2.00mm |
2 to 42 2 to 16 |
3.6A 4.7A |
Micro-One Connectors | Wire-to-board | 2.00mm | 2 to 8 | 4.0A |
Nano-Fit Connectors | Wire-to-wire Wire-to-board |
2.50mm | 2 to 16 | 8.0A |
Mini-Lock Connectors | Wire-to-wire Wire-to-board |
2.50mm | 2 to 15 | 3.5A |
KK Plus Connectors | Wire-to-board | 2.50mm 3.00mm 3.96mm |
2 to 8 | 11.0A |
Micro-Fit+ Connectors | Wire-to-wire Wire-to-board |
3.00mm | 2 to 24 | 13.0A |
Sensor Connectors
As a critical element of refrigerator design, the temperature sensing system is often restricted to only one area within the device yet accurate temperature readings may require more than one beta value. Engineers must design effective methods for ensuring consistent temperature readings regardless of where the temperature sensing system is located. Molex offers connectors that can be terminated to the end of the thermistor, providing secure retention to the PCB and helping to ensure more accurate temperature readings.
Operating Temperature | Beta Range | Resistance Range | |
---|---|---|---|
NTC Ring Temperature Sensor Cable Assemblies | -40 to +105°C (with connector) -40 to +150°C (with leads) |
3K to 5K | 1K to 100K Ohms |
Configuration | Pitch | Circuits | Max. Current Rating | |
---|---|---|---|---|
Micro-Fit+ Connectors | Wire-to-wire Wire-to-board |
3.00mm | 2 to 24 | 13.0A |
Mini-Fit Connectors | Wire-to-wire Wire-to-board Board-to-board |
4.20mm | 2 to 40 | 20.5A |
Ice and Water Dispensing Connectors
Consumers frequently use the ice and water dispensing feature on a refrigerator and expect the sub-system to function reliably over the life of the device. Design engineers need to incorporate connectors into the ice and water dispensing design that provide exceptional durability to withstand frequent use. Molex connectors include features designed for durable performance, such as friction and positive locks, terminal position assurance and mounting ears for stronger retention force.
Configuration | Pitch | Circuits | Max. Current Rating | |
---|---|---|---|---|
VersaBlade Connectors | Wire-to-wire | 6.20mm | 1 to 9 (standard version) 2 to 4 (high-temperature version) |
15.0A |
Micro-Fit+ Connectors | Wire-to-wire Wire-to-board |
3.00mm | 2 to 24 | 13.0A |
Mini-Fit Connectors | Wire-to-wire Wire-to-board Board-to-board |
4.20mm | 2 to 40 | 20.5A |
Wi-Fi Connectors
Consumers expect home appliances to operate like smart home devices, and refrigerators are no exception. Wi-Fi enabled service alerts, communications and remote monitoring are increasingly considered table stakes. To meet the reliability demands of Wi-Fi communications, Molex connectors offer full EMI shielding for exceptional signal integrity, while providing a small footprint for PCB space savings.
Configuration | Frequency | |
---|---|---|
5G mmWave RF Flex-to-Board Connectors | Signal: 2 to 4 Ground: 4 to 6 Power: 4 to 0 |
15 GHz 25 GHz |
Camera Connectors
As design engineers look to the future, cameras within refrigerators are becoming more important to consumers to enable remote access and automate grocery list creation. This added functionality presents a challenge when considering layout constraints on an already dense PCB. Molex connectors maximize space savings with a small pitch and mated height while providing quality data transmission.
Configuration | Pitch | Circuits | Max. Current Rating | |
---|---|---|---|---|
Micro-Lock Plus Connectors | Wire-to-board | 1.25mm 2.00mm |
2 to 42 2 to 16 |
3.6A 4.7A |
Micro-One Connectors | Wire-to-board | 2.00mm | 2 to 8 | 4.0A |
Plastic and Metal Injection Molding Capabilities
With more functionality in the same space, refrigerator designs require small, and often complex plastic and metal parts. Phillips Medisize, a Molex company, helps designers meet these demands with injection molding and in-mold labeling capabilities that seamlessly integrate style and functionality.