Refrigerator Control Strip LED Lighting With Recessed Light Guidance
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Solution Overview
Problem
Existing refrigeration and freezing appliances with interior lighting mechanisms are expensive and prone to mechanical failures due to complex mechanics.
Innovation Solution
The use of LEDs for lighting, integrated into a front strip control unit with recesses for light emission, allowing efficient and fault-resistant illumination of interior spaces, including drawers and door compartments, without the need for additional circuit boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical hinged lights are used for interior illumination, then the lighting can be activated when the door is opened, but the assembly becomes expensive and the mechanics are susceptible to failure
Solution Approach 1:
The patent combines the lighting unit with the operating and control unit into a single integrated assembly. The lighting means are mounted on the operating and control unit, eliminating the need for separate mechanical hinged lighting mechanisms. This integration reduces the number of parts and simplifies the overall assembly while improving reliability.
Solution Approach 2:
The patent replaces mechanical hinged lighting mechanisms with an integrated lighting unit that is part of the operating and control unit. The lighting means are activated through the control unit's operation rather than through mechanical hinges, eliminating complex mechanical components and reducing susceptibility to mechanical failure.
2Ease of manufacture
If traditional lighting mechanisms are used, then illumination can be provided, but the assembly requires more parts and construction effort
Solution Approach 1:
The lighting unit is merged with the operating and control unit into a single integrated assembly. This combination reduces the total number of parts and simplifies manufacturing by eliminating the need for separate assembly steps for lighting and control units. The integrated design allows for easier assembly and reduced construction effort.
3Temperature
If LEDs are used for lighting, then the lighting can be arranged in tight spaces and generates little heat, but additional considerations are needed for light emission direction
Solution Approach 1:
The patent incorporates a recess in the operating and control unit through which the lighting means emit light. This recess is specifically designed to direct light into the cooled interior space. The local structural modification (recess) controls the direction of light emission without requiring complex additional components, effectively managing light direction while maintaining the benefits of LED technology.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides cost-effective, reliable, and efficient lighting with reduced mechanical complexity, enabling precise light focusing and effective illumination of preferred areas within the appliance.
Implementation Method 1
the lighting means are formed by one or more LEDs
Data Source
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AI summary
The device has an operation and/or control unit (10)for operating and/or controlling the refrigerating and/or freezing device. An evaporator module is provided for cooling interior of the device. Illumination units e.g. LEDs and light bulbs, illuminate the interior of the vehicle and areas present from view of a user in front of the interior of the device. The illumination units are arranged in or at the operation and/or control unit and the evaporator module. The operation and/or control unit and the evaporator module are provided with recesses (20).