Magnetic refrigeration hot vortex tube air conditioner cap

Abstract

The invention provides a portable and efficient magnetic refrigeration hot vortex tube air conditioner cap which comprises a cap body, a power system, a magnetic refrigeration and heating system and a vortex system. According to the wearable temperature adjusting equipment, the magnetic refrigeration and heating technology and the vortex tube technology are adopted, and through superposition of the two technologies, the problems that existing wearable temperature adjusting equipment is low in refrigeration and heating efficiency and not obvious in temperature adjusting effect are solved. Meanwhile, the device is small in size, stable, reliable, environment-friendly, safe to use and capable of refrigerating and heating.

Description

Technical Field

[0001] The invention relates to an air conditioning cap, in particular to a magnetic refrigeration and thermal vortex tube air conditioning cap. Background Art

[0002] Air conditioning is the most important equipment for modern people to cope with hot and cold weather. Traditional air conditioners have large air output and high working efficiency, but they are bulky and heavy and are only suitable for indoor use.

[0003] In order to meet the needs of outdoor temperature control, people have invented some lightweight wearable temperature control devices, such as fan hats, neck fans, etc., but the cooling and heating efficiency of these devices is low, and the temperature control effect is not obvious.

[0004] With the development of science and technology, two new technologies have provided a theoretical basis for solving the above problems, namely magnetic refrigeration technology and vortex tube refrigeration technology.

[0005] Principle of magnetic refrigeration: Magnetic refrigeration is a new technology that uses the magnetocaloric effect of magnetic materials to achieve refrigeration. The so-called magnetocaloric effect refers to the change in the orderly arrangement of the magnetic moments of magnetic materials when the external magnetic field changes, that is, the change in magnetic entropy, which causes the material itself to absorb and release heat. When there is no external magnetic field, the direction of the magnetic moment in the magnetic material is chaotic, which manifests as a large magnetic entropy of the material; when there is an external magnetic field, the orientation of the magnetic moment in the material gradually tends to be consistent, which manifests as a small magnetic entropy of the material. The basic principles of magnetic refrigeration are as follows: Figure 1 As shown in the figure, during the excitation process, the magnetic moment of the magnetic material changes from disorder to order along the direction of the magnetic field, and the magnetic entropy decreases. According to the knowledge of thermodynamics, the magnetic working fluid releases heat to the outside at this time; during the demagnetization process, the magnetic moment of the magnetic material changes from order to disorder along the direction of the magnetic field, and the magnetic entropy increases. At this time, the magnetic working fluid absorbs heat from the outside. Secondly, under adiabatic conditions, there is no heat exchange between the magnetic working fluid and the outside world. During the excitation and demagnetization process, the magnetic field does work on the material, causing the internal energy of the material to change, thereby changing the temperature of the material itself.

[0006] Principle of vortex tube refrigeration: vortex tube refrigeration is a method of using the vortex tube to generate a vortex in high-speed airflow to separate cold and hot airflows, and to obtain refrigeration using the cold airflow. The gas that has been compressed and cooled to room temperature enters the nozzle, expands and accelerates to the speed of sound in the nozzle, and is injected into the vortex chamber from the tangential direction to form a free vortex. The closer the free vortex is to the center, the greater the angular velocity of rotation. Due to the different angular velocities, friction is generated between the layers of the free vortex. The angular velocity of the airflow in the center is the largest. As a result of friction, energy is transferred to the airflow with a lower angular velocity in the outer layer. The airflow in the center layer loses energy, has low kinetic energy, reduces speed, and reduces temperature. It is led out from one end through the orifice plate in the center of the vortex tube to obtain the cold airflow required for refrigeration. The airflow in the outer layer gains momentum, increases kinetic energy, and rubs against the turbine tube wall at the same time, converting part of the kinetic energy into heat energy, which is led out from the other end of the vortex tube through the control valve to form a hot airflow. Summary of the invention

[0007] The purpose of the present invention is to overcome the shortcomings of existing wearable temperature control devices. The present invention provides a lightweight and powerful magnetic refrigeration thermal vortex tube air conditioning cap, which is used to solve the problems of low cooling and heating efficiency and unclear temperature control effect of existing wearable temperature control devices.

[0008] Technical solution of the present invention: To achieve the above-mentioned purpose, the present invention proposes a magnetic refrigeration and heating vortex tube air-conditioning cap, which includes: a cap, a power system, a magnetic refrigeration and heating system and an eddy current system.

[0009] In the magnetic refrigeration and thermal vortex tube air conditioning cap as described above, the cap includes: a cap top, a cap circumference, a cap brim, a frame, a circuit and an adjustment knob. The cap can be worn on the head, other devices can be accommodated inside, and the temperature can be adjusted by adjusting the knob.

[0010] In the magnetic refrigeration hot vortex tube air conditioning cap as described above, the power system includes: a battery, a disc motor and a fan. The battery is fixed to the bottom of the cap frame, the disc motor is located above the battery, and the fan is located above the disc motor. The power system provides an initial wind source for the entire device.

[0011] In the magnetic cooling and heating vortex tube air conditioning cap as described above, the magnetic cooling and heating system includes: magnets, magnetic materials, isolation plates, isolation covers, hot chambers and cold chambers. Among them, the magnets are located inside the cap, above the fan, around the vortex tube, in a hollow cylindrical shape, symmetrically arranged; the magnetic materials are also hollow cylindrical, symmetrically arranged, located in the inner circle of the magnet, coaxial with the magnet; the isolation plate is an insulating material, located between the magnet and the vortex tube, and together with the isolation cover, which is also an insulating material, the space between the magnet and the vortex tube is divided into four cavities, two of which have magnets as hot chambers, and two of which do not have magnets as cold chambers; there are many choices for magnetic materials. For normal temperature cooling and heating, the material of the magnetic material is generally selected from gadolinium or magnetic steel. The magnetic cooling and heating system is the core part of the equipment to realize the cooling and heating functions, and is responsible for completing the initial cooling and heating of the initial air source.

[0012] In the magnetic refrigeration hot vortex tube air conditioning cap as described above, the vortex system includes: a vortex tube, a positioner and an air outlet duct. The vortex tube is a slender round tube located in the center of the hat, with the lower end in the center of the hat as the cold air outlet, and the upper end at the top of the hat as the hot air outlet. The air inlet is a number of small holes in the vortex tube, which penetrate the tube wall of the vortex tube along an inclined angle and are arranged symmetrically; the positioner is located between the inner frame of the hat and the vortex tube, and is used to position the air inlet of the vortex tube, so that the air inlet can be taken in from both the cold cavity and the hot cavity; the vortex tube is an auxiliary part of the device to realize the cooling and heating functions, and is responsible for completing the secondary cooling or heating of the airflow; the air outlet duct is a thick tube plus several thin tubes separated, the upper end of which can be connected to the cold air outlet or the hot air outlet, and the lower end leads to the chest or back of the human body to complete the air outlet function.

[0013] Beneficial effects of the present invention:

[0014] 1. High cooling and heating efficiency.

[0015] The present invention adopts two new cooling and heating technologies, namely magnetic cooling and heating and vortex tube cooling and heating technology. The magnetic cooling and heating system realizes heat transfer through the change of the magnetic field of the magnetic material, rather than through mechanical compression of gas like traditional air conditioners. This means that magnetic refrigeration can operate at very low temperatures and consume less energy. Therefore, the theoretical efficiency of magnetic refrigeration can reach 60-70% of the Carnot cycle efficiency, while gas compression refrigeration is generally 20-40%. In other words, under the same other conditions, the power consumption of magnetic refrigeration is only about 50% of traditional compression refrigeration; in addition, the present invention also applies vortex tube technology, which can re-process the cold air or hot air generated by the magnetic cooling and heating system to cool or heat it, making the cold air colder and the hot air hotter. Therefore, the superposition of the two technologies is achieved in the present invention, and the overall cooling and heating efficiency is greatly improved.

[0016] 2. Small size, stable and reliable.

[0017] Both magnetic cooling and heating and vortex tube technology do not require a gas compressor, which greatly reduces the size and makes them easier to wear. At the same time, they have fewer moving parts, no vibration, high reliability, long life, and are easy to maintain.

[0018] 3. Green and environmentally friendly, safe to use.

[0019] Unlike traditional compressor refrigeration, magnetic refrigeration and vortex tube refrigeration technologies do not require the use of refrigerants to absorb and release heat. These refrigerants contain organic fluorides, ammonia and hydrocarbons, which have defects such as damaging the ozone layer, being toxic, flammable and explosive.

[0020] 4. Take into account both cooling and heating.

[0021] Different from simple cooling or heating equipment, the present invention generates cold air and hot air at the same time, and the temperature can be adjusted, so it can be freely switched to cooling or heating mode according to environmental requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a front view of the present invention.

[0024] Figure 2 It is a top view of the present invention.

[0025] Numbers in the figure: 1. hat, 11. hat top, 12. hat circumference, 13. hat brim, 14. frame, 15. circuit, 16. adjustment knob, 2. power system, 21. battery, 22. disc motor, 23. fan, 3. magnetic cooling and heating system, 31. magnet, 32. magnetic material, 33. isolation plate, 34. isolation cover, 35. hot chamber, 36. cold chamber, 4. eddy current system, 41. eddy current tube, 42. air inlet, 43. positioner, 44. hot air outlet, 45. cold air outlet, 46. air outlet duct. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] See the examples Figure 1 , Figure 2 .

[0028] 1. Realization of the initial wind source: After the device is started, the battery 21 will supply power to the disc motor 22 through the circuit 15, and the motor 22 drives the fan 23 to rotate, thus generating the initial wind source.

[0029] 2. Realization of magnetic cooling and heating functions: After the motor 22 is started, it will simultaneously drive the magnetic material 32 to rotate. When passing through the hot cavity where the magnet 31 is located, the magnetic material 32 releases heat due to magnetization, and the air in the hot cavity becomes hot; when moving away from the magnet 31 and entering the cold cavity, the magnetic material 32 absorbs heat due to demagnetization, and the air in the cold cavity becomes cold. In this way, cooling and heating are realized.

[0030] 3. Realization of the cooling and heating functions of the vortex tube: when cooling is needed, the vortex tube 41 is rotated so that the air inlet 42 is located in the cold chamber, and the position of the vortex tube 41 is fixed by the positioner 43. At this time, the cold air in the cold chamber 36 will enter the air inlet 42, and the hot and cold air will be separated again in the vortex tube 41, wherein the hot air will be discharged into the air from the hot air outlet 44 at the top of the vortex tube 41, and the cold air will be discharged from the cold air outlet 45 at the bottom of the vortex tube 41, ready for cooling; when heating is needed, the vortex tube 41 is rotated so that the air inlet 42 is located in the hot chamber, and the position of the vortex tube 41 is fixed by the positioner 43. At this time, the hot air in the hot chamber 35 will enter the air inlet 42, and the hot and cold air will be separated again in the vortex tube 41, wherein the cold air will be discharged into the air from the cold air outlet 45 at the bottom of the vortex tube 41, and the hot air will be discharged from the hot air outlet 44 at the top of the vortex tube 41, ready for heating.

[0031] 4. Cooling and heating: When cooling is required, the inlet of the air outlet 46 is connected to the cold air outlet 45, and the air outlet 46 is

[0032] The outlet of the thin tube is aimed at the chest and back of the human body to achieve cooling; when heating is needed, the inlet of the air outlet duct 46 is connected to the hot air outlet 44, and the outlet of the thin tube of the air outlet duct 46 is aimed at the chest and back of the human body to achieve heating.

Claims

1. A magnetic refrigeration vortex tube air conditioning cap, characterized in that: include: A hat (1), a power system (2), a magnetic cooling and heating system (3) and an eddy current system (4); The power system (2) comprises a battery (21), a disc motor (22) and a fan (23); The magnetic cooling and heating system (3) comprises a magnet (31), a magnetic substance (32), an isolation plate (33), an isolation cover (34), a hot chamber (35) and a cold chamber (36); The vortex system (4) comprises a vortex tube (41), a positioner (43) and an air outlet pipe (46); The hot air or cold air generated by the magnetic refrigeration and heating system (3) in the hot chamber (35) and the cold chamber (36) can enter the vortex tube (41) through the air inlet (42) to separate the hot and cold air again, making the cold air colder and the hot air hotter, thereby achieving the superposition of the effects of the two refrigeration technologies of magnetic refrigeration and vortex tube refrigeration.

2. The magnetic refrigeration hot vortex tube air conditioning cap according to claim 1, characterized in that: The vortex tube (41) can select air intake from the hot chamber (35) or the cold chamber (36) by rotating and positioning the air inlet (42).

3. The magnetic refrigeration hot vortex tube air conditioning cap according to claim 1, characterized in that: The air outlet pipe (46) can be selectively connected to the hot air outlet (44) or the cold air outlet (45) for heating or cooling.

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