Thermal management device and method for laser

By adding a cooling unit on the direct cooling plate to the laser thermal management device, the problem of insufficient cooling capacity of the existing refrigeration system when the laser is turned on or the ambient temperature changes sharply is solved, and a more efficient heat dissipation effect is achieved to ensure the light output quality of the laser.

CN119695620APending Publication Date: 2025-03-25MAXPHOTONICS CORP
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Patent Information

Application Number
CN202411790999.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The existing refrigeration system is insufficient when the laser is turned on or the ambient temperature changes sharply, and cannot quickly meet the heat dissipation needs of the laser pump source, affecting the laser light output quality.

Method used

A heat management device is designed, including a compressor, a condensation assembly and a direct cooling plate. A cooling unit is added to the direct cooling plate. The cooling unit stores the cooling capacity before the laser is turned on or when the temperature exceeds the first temperature threshold. By controlling the conduction state of the evaporation unit and the cooling unit, the cooling capacity supply of the refrigeration cycle circuit is optimized.

Benefits of technology

The refrigeration capacity of the refrigeration cycle circuit when the laser is turned on is improved, the problem of insufficient cooling capacity is solved, ensuring that the temperature of the heating component of the laser and its temperature change rate are maintained within the ideal range, and the light output quality of the laser is stably ensured.

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Abstract

The invention discloses a heat management device for a laser and a method thereof.The heat management device comprises a compressor, a condensation assembly and a direct cooling plate which are used for forming a refrigeration circulation loop, the refrigeration circulation loop is used for allowing a refrigerant to circulate so as to provide cooling capacity for a heating part of the laser, and the direct cooling plate comprises a cold storage unit; the cold storage unit is used for storing cold energy before the laser is started or storing cold energy when the temperature of the cold storage unit is larger than a first temperature threshold value after the laser is started. The cold accumulation unit is additionally arranged for cold accumulation in advance, the refrigerating capacity of the refrigerating circulation loop can be improved when the laser is started, and the problem that an existing refrigerating system is insufficient in refrigerating capacity when the laser is started or the environment temperature changes sharply is solved.
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