Direct cooling air conditioner

Through air expansion cooling technology and direct cooling pipe heat exchange, the high-efficiency, energy-saving, environmentally friendly direct cooling effect of the air conditioner is achieved, and the problems of low refrigeration efficiency and large energy consumption of existing air conditioners are solved.

CN120140852APending Publication Date: 2025-06-13MAOMING HIGH TECH IND DEV ZONE JIAZHOUCHUANGXINKEJI CO LTD
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Patent Information

Application Number
CN202510569465.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-02
Publication Date
2025-06-13

AI Technical Summary

Technical Problem

Existing air conditioners require the use of refrigerant, which leads to low indirect refrigeration efficiency and high energy consumption of refrigerant is not environmentally friendly.

Method used

By using expansion cooling technology, the air flow rate and air pressure changes are used to directly refrigerate, and the high-speed cooling and negative pressure cooling of the air are achieved, combining heat exchange between the direct cooling pipe and the heat sink to improve the refrigeration effect.

Benefits of technology

It achieves the efficient and energy-saving and environmentally friendly effect of direct air refrigeration, avoids energy consumption and environmental pollution of refrigerant use, and significantly improves the refrigeration efficiency of air conditioners.

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Abstract

According to the direct-cooling air conditioner, a compact air extractor is installed at an outlet of a cavity with a small inlet and an outlet gradually increased to hundreds of times to extract air, the flowing speed of the air in the cavity is continuously increased from the outlet to the inlet, and the temperature is continuously decreased; the air pressure in the cavity is continuously reduced from the outlet to the inlet, and the temperature is continuously reduced; air is expanded and cooled after entering the cavity, and cold air is sent out; and by continuous circulation, the indoor air temperature can be continuously reduced. Air is directly used for refrigeration, and no refrigerant is used.
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Description

Technical Field

[0001] The present invention relates to a direct cooling air conditioner, which is an efficient, energy-saving and healthy air conditioner. Background Art

[0002] Existing air conditioners all require refrigerants.

[0003] 1. Using Freon as a refrigerant.

[0004] 2. Using water as a refrigerant.

[0005] 3. Using other refrigerants.

[0006] Defect: It is not direct cooling, and the indirect cooling efficiency is obviously low.

[0007] The technical solution of the present invention lies in: Directly cooling with air, which has high efficiency, energy conservation and environmental protection. Summary of the Invention

[0008] Directly cooling with air.

[0009] Principle: Expansion cooling High-speed temperature drop As the flow rate of air increases, the temperature drops.

[0010] Negative pressure temperature drop As the air pressure in a closed space drops, the temperature drops.

[0011] Install a dense air extractor at the outlet of a cavity with a small inlet and a gradually increasing (by several hundred times) outlet to extract air. The air in the cavity expands and cools, and the cold air is sent out. By continuously circulating, the indoor temperature will drop.

[0012] As Figure 2 shown, High-speed temperature drop: When the air extractor starts to work driven by electricity, the flow rate of the air in the cavity continuously increases from C to B to A, and the temperature continuously drops.

[0013] Since the outlet area is several hundred times that of the inlet, the air supply speed is several meters per second, and the wind speed at the inlet is close to or even exceeds the speed of sound, and the temperature drop is very significant.

[0014] Negative pressure temperature drop: When the air extractor starts to work driven by electricity, the air pressure in the cavity continuously drops from C to B to A, and the temperature continuously drops.

[0015] The air in the cavity continuously expands from the outlet to the inlet, and the temperature continuously drops; the air expands and cools after entering the cavity, and the cold air is sent out; by continuously circulating, the indoor temperature will continuously drop.

[0016] The direct cooling pipe exchanges heat with the surrounding gas through the heat sink to further improve the refrigeration effect.

[0017] The air enters the direct cooling pipe, is cooled and then comes out, and the hot air becomes cold. Refrigerant is not used in the whole process, and air expansion refrigeration is directly utilized.

[0018] Freon air conditioners also use expansion cooling. However, since Freon is used as the refrigerant (which cannot be directly discharged), the gaseous Freon has to be compressed back into the liquid state. Therefore, it has high energy consumption and is not environmentally friendly.

[0019] The present invention directly uses air expansion cooling, which is simple, practical, efficient and environmentally friendly.

[0020] The beneficial effects of the present invention are: Direct refrigeration is achieved by using air, with high efficiency, energy conservation and environmental protection. Brief Description of the Drawings

[0021] Figure 1 It is a schematic diagram of a direct cooling air conditioner.

[0022] Figure 2 It is a schematic diagram of a cross-sectional view of the outer shell.

[0023] Figure 3 It is a schematic diagram of a bearing.

[0024] Figure 4 It is a schematic diagram of an impeller.

[0025] Figure 5 It is a schematic diagram of a bearing + impeller.

[0026] Figure 6 It is a schematic diagram of an electric motor.

[0027] Figure 7 It is a schematic diagram of an electric motor + motor bracket.

[0028] Figure 8 It is a schematic diagram of a motor bracket.

[0029] Figure 9 It is a schematic diagram of a motor bracket + bearing.

[0030] Figure 10 It is a schematic diagram of an impeller shaft hole.

[0031] Figure 11 It is a schematic diagram of a bearing + impeller + electric motor.

[0032] Figure 12 It is a schematic diagram of a direct cooling air conditioner (without a protective ring).

[0033] Figure 13 It is a schematic diagram of a protective ring.

[0034] Figure 14 It is a schematic diagram of a motor bracket fixing hole.

[0035] Figure 15 It is a schematic diagram of a heat sink.

[0036] Figure 16 It is a schematic diagram of a heat sink + protective ring.

[0037] Figure 17 It is a schematic diagram of a direct cooling air conditioner (with a heat sink).

[0038] Figure 18 It is a schematic diagram of a direct cooling air conditioner (with different tilting angles).

[0039] Components in the figure: 1: Outer shell; 2: Motor; 3: Motor bracket; 4: Base; 5: Protective ring; A: Direct cooling pipe; B: Negative pressure chamber; C: Air outlet channel; 6: Bearing; 7: Impeller; 8: Fixed hole; 9: Impeller shaft hole; 10: Fixed screw hole; 11: Heat sink; 12: Protective ring A. Embodiment

[0040] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] As shown in the drawings, the outer shell is processed and all the components are installed according to the schematic diagram.

[0042] The impeller used in the present invention is the 1 / 4 arc surface impeller of the inventor's prior invention, which is dense and opaque when viewed directly.

[0043] The 1 / 4 arc surface impeller is sleeved with a bearing, and the bearing is sleeved in the pipeline, with high tightness.

[0044] The bearing and the motor bracket are respectively fixed (using a circlip or other methods) or fixed together with bolts through the fixed holes.

[0045] Installing a heat sink can improve the refrigeration effect.

[0046] Lengthening the length of the direct cooling pipe can improve the refrigeration effect.

[0047] Increasing the ratio of the outlet area to the inlet area can improve the refrigeration effect.

[0048] The protective ring plays a protective role to prevent the human body from being damaged by contact with low temperature.

[0049] Tilting can make the condensed water fall at the tail and be collected with a container (water cup or basin).

[0050] Installing an intelligent control circuit to achieve intelligent control.

[0051] Adjust the tilting angle according to the scene requirements.

[0052] Install shock-absorbing rubber pads.

[0053] For a direct-cooling air conditioner, a dense air extractor is installed at the outlet of a cavity where the inlet is small and the outlet gradually expands to hundreds of times its size to extract air. The air flow velocity inside the cavity continuously increases from the outlet to the inlet, and the temperature continuously drops; the air pressure inside the cavity continuously drops from the outlet to the inlet, and the temperature continuously drops; the air inside the cavity continuously expands from the outlet to the inlet, and the temperature continuously drops; the air expands and cools after entering the cavity, and the cold air is sent out; through continuous circulation, the indoor temperature will continuously drop.

[0054] Cooling by expansion energy, using the cold air after expansion to cool the surrounding air and discharging it, and circulating continuously.

[0055] Those of ordinary skill in the art can understand that the modules or processes of the embodiments are not necessarily essential for implementing the present invention.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A direct cooling air conditioner, characterized in that: A cavity with a small inlet and an outlet that gradually increases to several hundred times larger is equipped with a dense vacuum pump to extract the air. The air flow velocity in the cavity increases from the outlet to the inlet, and the temperature decreases; the air pressure in the cavity decreases from the outlet to the inlet, and the temperature decreases; the air in the cavity expands from the outlet to the inlet, and the temperature decreases; After the air enters the cavity, it expands and cools, and what is sent out is cold air; As the cycle continues, the indoor temperature will continue to drop.