Self-cooling system of carbon dioxide heat pump control cabinet

By using a carbon dioxide heat pump control cabinet with a self-cooling system, heat exchange and precise temperature control are achieved through the use of carbon dioxide as a working fluid, which solves the problem of low cooling efficiency in traditional control cabinets and enables efficient and stable operation of electrical equipment.

CN223939674UActive Publication Date: 2026-02-24SHANXI CLEAN ENERGY RES INST OF TSINGHUA UNIV +1
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Patent Information

Application Number
CN202520277705.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-02-24
Estimated Expiration
2035-02-20

AI Technical Summary

Technical Problem

Traditional control cabinet cooling methods are inefficient, especially in summer, which affects the performance and safety of electrical equipment and also results in high energy consumption.

Method used

The system employs a carbon dioxide heat pump control cabinet with a self-cooling system. Through the ingenious design of the carbon dioxide heat pump circuit and cooling circuit, it utilizes carbon dioxide as the working fluid for heat exchange. Combined with control valves and sensing components, it achieves precise temperature control, reduces energy consumption, and improves system stability.

Benefits of technology

This achieves efficient control cabinet cooling, reduces energy consumption, improves system reliability and stability, ensures electrical equipment operates within a suitable temperature range, and reduces the risk of failure.

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Abstract

The utility model provides a carbon dioxide heat pump control cabinet self-cooling system which comprises a carbon dioxide heat pump loop which comprises a compression device, a cooling device, a throttling device and an evaporation device which are mutually connected through a first pipeline, carbon dioxide is cooled to a preset temperature area in the cooling device, and the cooling device is provided with a first inlet and a first outlet; the compression device comprises a second inlet and a second outlet. The carbon dioxide heat pump loop further comprises a first section located between the first outlet and the second inlet and a second section located between the second outlet and the first inlet. And the cooling loop comprises a control cabinet heat exchange part and a second pipeline, the control cabinet heat exchange part is connected between the first outlet and the second inlet through the second pipeline and connected with the first section in parallel, and the control cabinet heat exchange part is used for making contact with the control cabinet for heat exchange. Based on the working loop of the carbon dioxide heat pump, the cooling loop is added, and the control cabinet is effectively cooled by utilizing the high-efficiency heat exchange characteristic of the carbon dioxide heat pump.
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