Dual-Side LED Spot Lamp with Glass Cup and Segmented Emitter
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Solution Overview
Problem
Existing LED spot lamps only illuminate one direction, resulting in a dark zone on the back and affecting the overall illumination effect.
Innovation Solution
An LED spot lamp design with dual light emission capabilities, featuring a main and auxiliary light emitting plate, where the lamp cup is constructed of a light-transmitting glass structure, allowing light to be emitted from both sides, and a wick column with glass wires to minimize interference, along with a heating structure using a chip resistor and thermal conductive substrate for efficient heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the LED light source is arranged only on one side of the radiator, then the structure is simple, but a dark zone is produced on the back affecting illumination effect
Solution Approach 1:
The patent divides the LED light source into two separate light emitting plates: a main light emitting plate and an auxiliary light emitting plate. The main light emitting plate is arranged on one side of the radiator to provide primary illumination, while the auxiliary light emitting plate is arranged on the other side to eliminate the dark zone. This segmentation resolves the contradiction by adding functional division without significantly increasing overall structural complexity.
2Ease of manufacture
If electric wires with insulating layers are used to introduce power, then power introduction is simple, but great interference is produced on the light emitted from the back
Solution Approach 1:
The patent extracts the harmful insulating layer from the power introduction system and replaces it with bare wires having ground wire shielding. This removes the source of light interference while maintaining the essential function of power introduction. The bare wires are embedded in the radiator structure, and ground wire shielding is added to prevent electromagnetic interference with the backlight emission.
3Use of energy by moving object
If green LEDs are used in low-temperature environments, then energy efficiency is improved, but heating requirement increases
Solution Approach 1:
The patent implements a self-service heating system where the lamp cap contains a heating wire that can be activated when ambient temperature is low. The heating wire generates heat to warm the green LEDs to their optimal operating temperature range, ensuring they maintain high energy efficiency and proper color temperature. Once the LEDs reach operating temperature, the heating function automatically stops, creating a self-regulating thermal management system.
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
The design effectively eliminates the dark zone on the back of the lamp, enhancing illumination by allowing light to be emitted from both sides while improving heat dissipation and heating efficiency, particularly for green LEDs in low-temperature environments.
Implementation Method 1
the lamp cup is of a light transmitting glass structure
Implementation Method 2
the radiator is used for supporting the circuit board and dissipating the heat generated by the LEDs
Implementation Method 3
the heating structure includes a thermal conductive substrate and a chip resistor arranged on the thermal conductive substrate
Data Source
AI summary
An LED spot lamp with double sides emitting light including a lamp cap, a lamp cup with one end connected with the lamp cap together and a lens connected to the other end of the lamp cup is provided. A cavity is encircled by the lamp cup and the lens. An LED light source including a circuit board provided with LEDs and an LED driver for driving the LEDs to emit light, and a radiator supporting the circuit board and dissipating heat generated by the LEDs are arranged in the cavity. The circuit board includes a main light emitting plate irradiating the lens, and an auxiliary light emitting plate irradiating the direction away from the lens. The lamp cup is of a light transmitting glass structure. The brightness of light emitted from the main light emitting plate is greater than that of light emitted from the auxiliary light emitting plate.