2results about How to "Ambient temperature is stable" patented technology

The utility model discloses a cooling device used in a stem cell cryopreservation process, and relates to the technical field of stem cell cryopreservation equipment. The device comprises a storage box, a cover plate is hinged to one side of the top of the storage box, a placement box is installed in the storage box, a plurality of test tube grooves are formed in the top of the placement box at equal intervals, and a gap groove is formed between the placement box and the inner wall of the storage box. Dry ice storage boxes are fixedly installed on the two opposite sides of the outer wall of the storage box, conveying pipes at the bottoms of the dry ice storage boxes are inserted into the bottoms of the gap grooves, and baffles distributed at intervals are fixedly arranged in the gap grooves. The cooling box, the water inlet pipe and the water outlet pipe can block external high temperature through circularly-cooled cooling water, a proper low-temperature environment in the transfer box is maintained, adverse effects of the external environment on the cooling process are reduced, normal cooling work is guaranteed, and the overall cooling efficiency is improved.

This invention provides a control method, apparatus, and temperature control device for a magnetic refrigeration temperature control system, relating to the field of temperature control technology. The magnetic refrigeration temperature control system includes a magnetic refrigeration unit and a heat exchange unit. The method includes: acquiring current environmental parameters and calculating the deviation between the current environmental parameters and target environmental parameters; adjusting the control parameters from the previous moment based on the deviation value and a preset adjustment coefficient to obtain the control parameters for the current moment; wherein the control parameters include magnetic field strength, magnetic field change frequency, and working fluid flow rate; and controlling the magnetic refrigeration unit and heat exchange unit based on the control parameters for the current moment. This invention enables the entire magnetic refrigeration temperature control system to intelligently respond to environmental changes, maintaining efficient, stable, and precise operation.