Armored car medium-voltage direct-current dual-system air conditioner

By designing a medium-voltage DC dual-system air conditioner in armored vehicles, using two sets of compression refrigeration systems sharing fins and fans, and driven by DC motors, the problem of unstable cooling supply under high temperature and high power consumption of AC air conditioning in armored vehicles was solved, achieving stable cooling supply and equipment miniaturization, and adapting to flexible control of medium-voltage DC power supply.

CN223904843UActive Publication Date: 2026-02-13JIANGSU ZHONGTIAN DEFENSE EQUIP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520664611.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-02-13
Estimated Expiration
2035-04-10

AI Technical Summary

Technical Problem

The existing AC power air conditioning in armored vehicles cannot meet the requirements for stable operation and high power consumption in high-temperature environments, and cannot be adapted to medium-voltage DC power supplies, resulting in unstable cooling and heat dissipation.

Method used

Design a medium-voltage DC dual-system air conditioner for armored vehicles. It adopts two sets of compression refrigeration systems, sharing the fins of a microchannel heat exchanger and evaporator. The fan is driven by a DC motor, and the compressor is a medium-voltage DC motor, which realizes flexible control and equipment miniaturization.

Benefits of technology

It achieves stable cooling in high-temperature environments, meets high power consumption requirements, features miniaturized equipment, low noise, long service life, and flexible control of medium-voltage DC power supply in armored vehicles.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223904843U_ABST
    Figure CN223904843U_ABST
Patent Text Reader

Abstract

The utility model relates to a medium-pressure direct-current double-system air conditioner for an armored car, which comprises two groups of compression refrigeration systems, exhaust of compressors of the compression refrigeration systems sequentially passes through micro-channel heat exchangers, liquid accumulators, filters, expansion valves and evaporator return air to be connected with the compressors, and the micro-channel heat exchangers of the two groups of compression refrigeration systems share an axial flow fan. The evaporators of the two compression refrigeration systems share a centrifugal fan, the axial flow fan and the centrifugal fan are both driven by a direct current motor through a belt, and the compressor is driven by a medium-voltage direct current motor. One compression refrigeration system is standby, and the other compression refrigeration system is used, so that cold supply is effectively guaranteed; the fan is driven by a belt through a direct-current motor, the compressor is directly driven by the direct-current motor, and the fan is adaptive to a vehicle-mounted medium-voltage direct-current power supply of the armored vehicle, can meet various performance requirements of flexible regulation and control, stable driving, no influence of instantaneous load fluctuation and equipment miniaturization, and has the advantages of dynamic matching, reduction of invalid energy consumption, controllable heating value, stable operation, low noise, high reliability and the like. And the service life is long.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of air conditioners, in particular to an armored vehicle medium-voltage direct-current double-system air conditioner. BACKGROUND

[0002] The current mainstream armored vehicle power needs to cover the peak demand of power systems such as driving motors, weapon modules such as radars, fire control, and communication equipment, and the instantaneous current should support the load capacity of ≥1000A; for multi-task scenarios such as electronic warfare and multi-weapon mounting, a modular power supply system is recommended to support a wide range of 0-1000V output, and flexible configuration is realized through parallel expansion; and the cooling and heat dissipation demand for stable operation in high-temperature environments of -40℃ to 85℃. All of these cannot be separated from a standard voltage medium-voltage direct-current power supply, which must be adapted to a medium-voltage direct-current air conditioner based on the traditional alternating-current power supply air conditioner to meet the cooling and refrigeration operation and personnel cooling demand in the armored vehicle. SUMMARY

[0003] The utility model provides a simple structure, be favorable to stable, safe cooling armored vehicle medium-voltage direct-current double-system air conditioner.

[0004] The technical scheme adopted by the utility model is: an armored vehicle medium-voltage direct-current double-system air conditioner, characterized by comprising two sets of compression refrigeration systems, the compression refrigeration system comprising a compressor, a micro-channel heat exchanger, a liquid accumulator, a filter, an expansion valve, and an evaporator, the compressor exhaust being sequentially connected to the micro-channel heat exchanger, the liquid accumulator, the filter, the expansion valve, and the evaporator, the evaporator gas returning to the compressor, the two micro-channel heat exchangers of the two sets of compression refrigeration systems sharing one or more than one axial flow fan, the two evaporators of the two sets of compression refrigeration systems sharing one or more than one centrifugal fan, the axial flow fan and the centrifugal fan being driven by a direct-current motor through a belt, and the compressor being driven by a medium-voltage direct-current motor.

[0005] The compressor exhaust is sequentially connected to the micro-channel heat exchanger through a needle valve and a high-low voltage switch, and the evaporator gas returns to the compressor through a needle valve.

[0006] The direct-current motor is DC 26V.

[0007] The medium-voltage direct-current motor is DC 270V.

[0008] The two micro-channel heat exchangers of the two sets of compression refrigeration systems share the same set of fins.

[0009] The two evaporators of the two sets of compression refrigeration systems share the same set of fins.

[0010] The evaporators of the two sets of compression refrigeration systems adopt a copper tube and copper foil structure.

[0011] Electric heating is provided between the evaporators of the two sets of compression refrigeration systems.

[0012] The utility model discloses the beneficial effect is:

[0013] 1, adopt two groups of compression refrigeration system one spare one, effective guarantee cooling, two groups of compression refrigeration system can start simultaneously and satisfy high power consumption demand.

[0014] 2, the microchannel heat exchanger of two groups of compression refrigeration system, evaporator share fin and fan, be favorable to the simplification equipment, satisfy the space use demand of armored car.

[0015] 3, axial flow fan and centrifugal fan adopt direct current motor by belt drive, and the compressor adopts direct current motor direct drive, and adapt armored car vehicle-mounted medium voltage direct current power supply, can satisfy flexible regulation and control, drive stability, not be influenced by instantaneous load fluctuation, and the various performance requirements of equipment miniaturization, have dynamic matching and reduce invalid energy consumption, and the calorific value is controllable, and the operation is stable, and the noise is low, and the service life is long. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is structural principle diagram for the utility model.

[0017] In the drawing: compressor 1, needle valve 2, high-low voltage switch 3, microchannel heat exchanger 4, axial flow fan 5, liquid accumulator 6, filter 7, expansion valve 8, evaporator 9, centrifugal fan 10, electric heating 11. DETAILED DESCRIPTION

[0018] The following is further illustrated in connection with the drawings.

[0019] Figure 1 As shown: a kind of armored car medium voltage direct current double system air conditioner, including two groups of compression refrigeration system, and the compression refrigeration system includes compressor 1, needle valve 2, high-low voltage switch 3, microchannel heat exchanger 4, axial flow fan 5, liquid accumulator 6, filter 7, expansion valve 8, evaporator 9, centrifugal fan 10.Compressor 1 exhaust is in turn needle valve 2, high-low voltage switch 3, microchannel heat exchanger 4, liquid accumulator 6, filter 7, expansion valve 8, evaporator 9, needle valve return gas return connection compressor 1, the microchannel heat exchanger 4 of two groups of compression refrigeration system share more than one axial flow fan 5, the evaporator 9 of two groups of compression refrigeration system share more than one centrifugal fan 10, axial flow fan 5 and centrifugal fan 10 are all by direct current motor through belt drive, and compressor 1 is medium voltage direct current motor drive.

[0020] Electric heating 11 is also provided between the evaporator 9 of two groups of compression refrigeration system.

[0021] In the embodiment, adapt armored car power supply, and direct current motor is DC26V, and medium voltage direct current motor is DC270V.

[0022] In the embodiment, the two micro-channel heat exchangers of the two compression refrigeration systems share the same set of fins 11, and the two evaporators of the two compression refrigeration systems share the same set of fins. The micro-channel heat exchangers and the evaporators can adopt a copper tube-copper foil structure.

[0023] On the basis of the embodiment, the medium-pressure direct-current motor of the compressor 1 can also drive the compressor through a belt.

Claims

1. An armored vehicle pressurized DC dual system air conditioner, characterized by: It includes two sets of compression refrigeration system, the compression refrigeration system includes compressor, micro-channel heat exchanger, liquid accumulator, filter, expansion valve, evaporator, the compressor exhaust is connected to the compressor in sequence through micro-channel heat exchanger, liquid accumulator, filter, expansion valve, evaporator back gas, the micro-channel heat exchanger of two sets of compression refrigeration system shares more than one axial flow fan, the evaporator of two sets of compression refrigeration system shares more than one centrifugal fan, axial flow fan and centrifugal fan are driven by direct current motor through belt, the compressor is medium voltage direct current motor drive.

2. An armored vehicle direct current dual system air conditioner according to claim 1, characterized in that: The compressor exhaust is connected to the micro-channel heat exchanger in sequence through needle valve, high-low voltage switch, the evaporator back gas is connected back to the compressor through needle valve.

3. An armored vehicle direct current dual system air conditioner according to claim 1, characterized in that: The direct current motor is DC 26V.

4. An armored vehicle direct current dual system air conditioner according to claim 1, characterized in that: The medium voltage direct current motor is DC 270V.

5. An armored vehicle direct current dual system air conditioner according to claim 1 or 2, characterized in that: Two micro-channel heat exchangers of two sets of compression refrigeration system share the same set of fins.

6. An armored vehicle direct current dual system air conditioner according to claim 1 or 2, characterized in that: Two evaporators of two sets of compression refrigeration system share the same set of fins.

7. An armored vehicle direct current dual system air conditioner according to claim 1 or 2, characterized in that: The evaporator of two sets of compression refrigeration system adopts copper tube copper foil structure.

8. An armored vehicle direct current dual system air conditioner as claimed in claim 6 wherein: The evaporator of two sets of compression refrigeration system adopts copper tube copper foil structure.

9. An armored vehicle DC double system air conditioner of claim 6, characterized in that: Electric heating is arranged between the evaporator of two sets of compression refrigeration system.