Refrigerating device and aircraft

Abstract

The utility model discloses a refrigeration device and an aircraft, and belongs to the technical field of unmanned aircrafts, the refrigeration device comprises a containing cavity, a heat conduction part and a fan, the containing cavity is used for containing solid-gas phase change materials, the solid-gas phase change materials can sublimate to absorb heat, and the fan is used for enabling airflow to flow through the heat conduction part. The heat conduction component can transfer heat of airflow to the containing cavity, the solid-gas phase change material in the containing cavity absorbs the heat and enables the heat conduction component to be cooled, and therefore the temperature of the airflow is reduced, a traditional compressor and a heat conduction medium pipeline do not need to be arranged on the refrigeration device, the weight of the whole machine is greatly reduced, and the size of the whole machine is reduced. The weight is low, the size is small, and the refrigeration power is high.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a refrigeration device and an aircraft. Background Art

[0002] With the rapid development of electric low-altitude manned aircraft, the requirements for the lightweight and high efficiency of its supporting equipment are becoming increasingly urgent. Among them, the compressor air-conditioning system, as a key component to ensure the comfort of passengers and the stable operation of equipment, its performance directly affects the overall performance of the aircraft.

[0003] The existing compressor air-conditioning systems have the following two limitations: one is the weight and volume. In order to achieve a higher refrigeration power, traditional air-conditioning systems often use large and heavy compressors and cooling devices, resulting in a large weight and volume of the whole system. This is undoubtedly a huge burden for electric low-altitude manned aircraft pursuing extreme lightweight, increasing flight resistance, reducing energy utilization efficiency, and thus seriously affecting the endurance and flight performance of the aircraft. The other is the contradiction between refrigeration power and volume. In order to reduce weight and volume, some existing miniaturized air-conditioning systems have to sacrifice refrigeration power, which makes it difficult to control the temperature inside the aircraft in high-temperature environments, affecting the comfort of the passenger cabin and the safe operation of in-cabin equipment. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a refrigeration device and an aircraft to solve the problem that it is difficult for current low-altitude manned aircraft to balance weight, volume and refrigeration power.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] A refrigeration device includes a receiving cavity, a heat conduction component and a fan;

[0007] Both sides of the heat conduction component are respectively connected to the receiving cavity and the fan. The receiving cavity is used to hold a phase change material, and the fan is used to make air flow through the heat conduction component.

[0008] Preferably, it further includes an air duct. The heat conduction component is arranged in the air duct, and the fan is connected to the air duct and makes air flow in the air duct.

[0009] Preferably, the heat conduction component includes a plurality of heat conducting fins located in the air duct, and one side of the heat conducting fin is connected to the receiving cavity.

[0010] Preferably, the plurality of heat conducting fins are evenly arranged around the receiving cavity.

[0011] Preferably, a storage cylinder and a discharge cylinder are further included. The discharge cylinder is located inside the storage cylinder, and an accommodation cavity is provided between the storage cylinder and the discharge cylinder. The side of the heat conduction component is connected to the outer wall of the storage cylinder;

[0012] The discharge cylinder has a head end and a tail end. The head end of the discharge cylinder communicates with the accommodation cavity, and the tail end of the discharge cylinder communicates with the outside.

[0013] Preferably, the head end of the discharge cylinder is conical.

[0014] Preferably, an opening is provided at the end of the storage cylinder, and the opening is detachably covered with a cover plate.

[0015] Preferably, a heat preservation cylinder is further included, and the accommodation cavity, the heat conduction fins and the heat preservation cylinder are arranged in sequence from inside to outside.

[0016] Preferably, a plurality of reinforcing ribs are arranged on the inner wall of the discharge cylinder along the direction from its head end to its tail end.

[0017] In order to achieve the same technical effect, the present utility model further provides an aircraft, including the refrigeration device as described above.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] The accommodation cavity is used to hold the solid-gas phase change material, and the solid-gas phase change material can sublime and absorb heat. The fan is used to make the air flow through the heat conduction component, and the heat conduction component can transfer the heat of the air flow to the accommodation cavity. The solid-gas phase change material in the accommodation cavity absorbs the heat and cools down the heat conduction component, thereby reducing the temperature of the air flow. This refrigeration device does not need to be provided with a traditional compressor and a heat conduction medium pipeline, greatly reducing the weight of the whole machine and reducing the volume of the whole machine, and can take into account low weight, small volume and high refrigeration power. Description of the Drawings

[0020] Figure 1 is a three-dimensional structure schematic diagram of the refrigeration device of the present utility model;

[0021] Figure 2 is a cross-sectional schematic diagram of the refrigeration device of the present utility model;

[0022] Figure 3 is an exploded schematic diagram of the refrigeration device of the present utility model;

[0023] In the figure: 10, fan; 20, heat conduction component; 21, heat conduction fins; 30, storage cylinder; 31, cover plate; 40, discharge cylinder; 41, head end; 42, tail end; 50, accommodation cavity; 60, air duct; 61, air inlet end; 62, air outlet end; 70, heat preservation cylinder. Detailed Embodiments

[0024] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used herein in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] Embodiment 1

[0028] Combined with Figures 1 to 3 As shown, a refrigeration device of the present utility model is schematically shown, including a receiving cavity 50, a heat conduction component 20 and a blower 10.

[0029] As Figure 2 , the receiving cavity 50 is used to hold a phase change material, and the phase change material is a solid-gas phase change material, specifically solid carbon dioxide, whose sublimation absorbs a large amount of heat and can greatly reduce the temperature of the receiving cavity 50. The two sides of the heat conduction component 20 are respectively connected to the receiving cavity 50 and the blower 10, and the blower 10 is used to make the air flow through the heat conduction component 20. The heat conduction component 20 transfers the heat of the air flow to the receiving cavity 50, and the heat is absorbed by the phase change material.

[0030] The phase change material reduces the temperatures of the receiving cavity 50 and the heat conduction component 20, and further reduces the temperature of the air flow to provide a refrigeration effect. This refrigeration device does not need to be provided with traditional compressors and pipelines of heat conduction media, greatly reducing the weight and volume of the device and ensuring the refrigeration power.

[0031] The refrigeration device of the present utility model further includes an air duct 60. The heat conduction component 20 is arranged in the air duct 60. The fan 10 is connected to the air duct 60 and enables the air flow to circulate in the air duct 60. In this embodiment, the fan 10 is arranged at the exhaust end 62 of the air duct 60. The fan 10 sucks the gas in the air duct 60 and enables the air flow to circulate in the air duct 60. The arrangement of the air duct 60 enables the air flow to flow orderly in the refrigeration device. When the refrigeration device is normally placed in the passenger cabin of the aircraft, the air inlet end 61 of the air duct 60 is located below its exhaust end 62. The air inlet end 61 of the air duct 60 sucks in hot air, and the exhaust end 62 of the air duct 60 discharges cold air to the middle or top of the passenger cabin, so as to circulate the hot and cold air.

[0032] The heat conduction component 20 includes a plurality of heat conduction fins 21 located in the air duct 60. One side of the heat conduction fins 21 is connected to the accommodation cavity 50. The plurality of heat conduction fins 21 is beneficial to increasing the contact area between the heat conduction component 20 and the air flow, making the heat exchange efficiency higher and the refrigeration effect better. Among them, the plurality of heat conduction fins 21 are uniformly arranged around the accommodation cavity 50, so that the entire inner side wall of the accommodation cavity 50 participates in heat conduction, making the most of the contact area between the accommodation cavity 50 and the phase change material.

[0033] Further, in combination with Figure 2 and Figure 3As shown in the figure, the refrigeration device further includes a storage cylinder 30 and a discharge cylinder 40. Both the storage cylinder 30 and the discharge cylinder 40 are cylindrical structures, and the inner diameter of the storage cylinder 30 is larger than the outer diameter of the discharge cylinder 40. One end of the storage cylinder 30 is sealed, and the other end is provided with an opening, on which a cover plate 31 is detachably covered. Maintenance personnel can fill the phase change material into the storage cylinder 30 through the cover plate 31. The discharge cylinder 40 is located inside the storage cylinder 30 and is fixedly arranged at the sealed end of the storage cylinder 30. An accommodation cavity 50 is provided between the storage cylinder 30 and the discharge cylinder 40. The accommodation cavity 50 communicates with the above-mentioned opening. The side of the heat conduction component 20 is connected to the outer wall of the storage cylinder 30. The phase change material sublimes and absorbs the heat of the wall surface of the storage cylinder 30, thereby absorbing the heat of the heat conduction component 20. Among them, the discharge cylinder 40 has a first end 41 and a second end 42. The first end 41 of the discharge cylinder 40 communicates with the accommodation cavity 50, and the second end 42 of the discharge cylinder 40 communicates with the outside. When the refrigeration device is normally placed in the crew cabin of the aircraft, the first end 41 of the discharge cylinder 40 is located above its second end 42. The phase change material after sublimation and gasification flows from the first end 41 of the discharge cylinder 40 to the second end 42 of the discharge cylinder 40 to be discharged to the outside. The discharge cylinder 40 and the storage cylinder 30 with such a structure can make the temperature gradient on the outer wall of the storage cylinder 30 more obvious. In addition, as the phase change material gasifies and is discharged to the outside, the weight of the phase change material in the accommodation cavity 50 gradually decreases, which is beneficial to improving the endurance performance of the aircraft. In this embodiment, the first end 41 of the discharge cylinder 40 is conical. A plurality of reinforcing ribs are arranged on the inner wall of the discharge cylinder 40 along the direction from its first end 41 to the second end 42. The reinforcing ribs can improve the stiffness and strength of the discharge cylinder 40 to prevent it from being abnormally deformed due to the extrusion of the phase change material.

[0034] To control the heat transfer direction, the refrigeration device further includes a heat preservation cylinder 70. The accommodation cavity 50, the heat conduction fins 21, and the heat preservation cylinder 70 are arranged in sequence from the inside to the outside. The setting of the heat preservation cylinder 70 can prevent heat from being directly transferred from the outside air to the structure inside the heat preservation cylinder 70.

[0035] Embodiment 2

[0036] To achieve the same technical effect, this embodiment provides an aircraft, including the refrigeration device described above. The refrigeration device is detachably arranged in the crew cabin of the aircraft. When the aircraft needs to be equipped with the refrigeration device, the refrigeration device can be installed in the crew cabin. When the environment where the aircraft is located does not require refrigeration, the refrigeration device can be removed to reduce the weight of the aircraft.

[0037] In summary, the accommodation cavity 50 is used to hold the solid-gas phase change material which can sublime and absorb heat. The fan 10 is used to make the air flow through the heat conduction component 20. The heat conduction component 20 can transfer the heat of the air flow to the accommodation cavity 50. The solid-gas phase change material in the accommodation cavity 50 absorbs heat and cools down the heat conduction component 20, thereby reducing the temperature of the air flow. This refrigeration device does not need to be provided with traditional compressors and heat conduction medium pipelines, greatly reducing the weight of the whole machine and shrinking the volume of the whole machine, and can take into account low weight, small volume and high refrigeration power.

[0038] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A refrigeration device, characterized in that: It includes a containing cavity, a heat conducting component and a fan; Two sides of the heat conduction component are respectively connected to the accommodating cavity and the fan, the accommodating cavity is used to contain the phase change material, and the fan is used to make the air flow pass through the heat conduction component.

2. The refrigeration device according to claim 1, characterized in that: It also includes an air duct, the heat conduction component is arranged in the air duct, and the fan is connected to the air duct to allow air flow to flow in the air duct.

3. The refrigeration device according to claim 2, characterized in that: The heat conduction component includes a plurality of heat conduction fins located in the air duct, and one side of the heat conduction fins is connected to the accommodating cavity.

4. The refrigeration device according to claim 3, characterized in that: A plurality of heat-conducting fins are evenly arranged around the accommodating cavity.

5. The refrigeration device according to claim 1, characterized in that: It also includes a material storage barrel and a material discharge barrel, wherein the material discharge barrel is located inside the material storage barrel, the accommodating cavity is arranged between the material storage barrel and the material discharge barrel, and the side edge of the heat conduction component is connected to the outer wall of the material storage barrel; The discharge cylinder has a head end and a tail end, the head end of the discharge cylinder is connected to the accommodating cavity, and the tail end of the discharge cylinder is connected to the outside.

6. The refrigeration device according to claim 5, characterized in that: The head end of the discharge cylinder is conical.

7. The refrigeration device according to claim 5, characterized in that: An opening is provided at the end of the storage barrel, and the opening is detachably covered with a cover plate.

8. The refrigeration device according to claim 3, characterized in that: It also includes a heat preservation tube, and the accommodating cavity, the heat conducting fins and the heat preservation tube are arranged in sequence from the inside to the outside.

9. The refrigeration device according to claim 5, characterized in that: The inner wall of the discharge barrel is provided with a plurality of reinforcing ribs arranged from the head end to the tail end thereof.

10. An aircraft, characterized in that: The refrigeration device comprises a refrigeration device as claimed in any one of claims 1 to 9.

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