Infrared Lamp Tube Coolant Flow Control for Halogen Bulb Cooling

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Solution Overview

Problem

Existing infrared lamp tube heat dissipation systems using halogen bulbs face challenges in achieving effective heat dissipation, leading to reduced product reliability and service life due to high operating temperatures of halogen lamps.

Innovation Solution

An automatic control system that calculates the optimal flow rate of a coolant in a proportional mode, where higher temperatures result in faster flow rates, for direct contact cooling of halogen bulbs, utilizing a circulation line, temperature sensor, flow rate sensor, controller, flow control valve, and pump to achieve effective heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If non-contact heat dissipation is used for halogen lamps, then the structure is simpler, but the heat dissipation effect is insufficient and service life is reduced

Engineering Contradiction:
Improveheat dissipation structureVSAvoidhalogen lamp service life
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent introduces a coolant as an intermediary substance between the halogen lamp and the external environment. The coolant flows through channels surrounding the lamp, directly contacting the lamp surface to absorb heat, then transports this heat away through the circulation system. This mediator enables effective heat removal without requiring complex contact mechanisms while significantly improving heat dissipation efficiency and lamp reliability

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs a hydraulic cooling system where coolant fluid circulates through dedicated channels around the halogen lamp. The fluid flow (driven by pump and controlled by flow control valve) enables continuous heat removal from the lamp surface. This hydraulic approach provides reliable, controllable heat dissipation that directly addresses the insufficient cooling effect of non-contact methods while extending lamp service life

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Loss of energy

If higher coolant flow rate is used, then heat dissipation efficiency is improved, but energy consumption increases

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidcoolant pump energy consumption
Core Design Contradiction:
Loss of energyVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic adjustment of coolant flow rate through a flow control valve that responds to temperature sensor feedback. The system continuously adapts the flow rate to match actual cooling demands: increasing flow when lamp temperature rises (improving heat dissipation efficiency) and reducing flow when cooling demand decreases (lowering pump energy consumption). This dynamic control resolves the contradiction between heat dissipation efficiency and energy consumption

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent incorporates a feedback control loop where temperature sensors monitor lamp or coolant temperature, and the controller adjusts the flow control valve accordingly. When temperature exceeds thresholds, the system increases coolant flow rate to enhance heat removal; when temperature is within acceptable ranges, flow rate is reduced to minimize energy consumption. This feedback mechanism enables the system to optimize the balance between heat dissipation efficiency and pump energy usage in real-time

Inventive Principle:
Principle #23Feedback

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 system enhances heat dissipation efficiency, improves product reliability, and extends the service life of halogen bulbs by ensuring effective cooling, while maintaining a leakproof structure for enhanced safety.

Implementation Method 1

a temperature sensor is arranged in the infrared lamp tube to detect the temperature of the coolant in the accommodating space

Methodology Applied
Scientific EffectTemperature detection: Thermocouple

Implementation Method 2

a flow rate sensor, arranged on the circulation line to detect the flow rate of the coolant

Methodology Applied
Scientific EffectFlow rate detection: Venturi Effect

Implementation Method 3

using the flowing coolant directly contact cool the halogen bulb

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 4

a circulation line, which includes an input end and an output end, respectively connected to the flow holes of the right and left covers, for injecting coolant into the accommodating space of the infrared lamp tube and circulating it

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 5

a pump, installed on the circulation line and electrically connected to the controller, for pumping the coolant to circulate

Methodology Applied
Scientific EffectPumping: Pump

Implementation Method 6

a flow control valve, including a first control valve and a driving unit, the driving unit receives an instruction signal from the controller to control the first control valve to adjust its flow

Methodology Applied
Scientific EffectFlow control: Valve

Data Source

PatentUS11988372B2Infrared lamp tube heat dissipation automatic control system
Publication Date: 2024.05.21 LIU CHEN YA
  • US11988372B2 patent drawing
  • US11988372B2 patent drawing
  • US11988372B2 patent drawing

AI summary

An infrared lamp tube heat dissipation automatic control system, wherein, according to the temperature of the coolant in lamp tube and the value provided by the flow rate sensor, the controller calculates the optimal flow rate of the coolant in a proportional mode that the higher the temperature, the faster the flow rate, and then control the flow rate by the flow control valve, so as to achieve predetermined coolant temperature and perform contact heat dissipation to the halogen bulb, thus solving the problem of the non-contact heat dissipation of halogen bulb of the prior art that cannot achieve the predetermined heat dissipation effect and resulting in the easy damage of halogen bulb; and further improves the product reliability and the service life. Furthermore, the leakproof structure of the lamp holder achieves a completely leakproof function, thereby enhancing product safety.