An improved device for air conditioning in large spaces

Abstract

This invention discloses an improved air conditioning device for large spaces. The device includes a housing with an opening at the bottom, an air inlet on the side wall of the housing, and a heat exchanger and a magnetic cooling auxiliary unit inside the housing. The magnetic cooling auxiliary unit includes a permanent magnet rotating assembly, a magnetic cooling heat exchange mechanism coaxially sleeved within the permanent magnet rotating assembly, a plate heat exchanger serving as a filter at the air inlet, and a heat dissipation mechanism located at the top of the housing. A circulating cooling loop is formed between the magnetic cooling heat exchange mechanism, the plate heat exchanger, and the heat dissipation mechanism via pipes. Each plate heat exchanger on the side wall has a vibration cleaning component on its outer side for cleaning the plate heat exchanger and maintaining ventilation efficiency. By incorporating the magnetic cooling auxiliary unit in conjunction with the plate heat exchanger, this invention cools the air as it enters through the air inlet before passing through the heat exchanger, increasing heat exchange efficiency, thereby improving heat exchange effect and reducing energy consumption.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology for large spaces, and specifically relates to an improved device for air conditioning in large spaces. Background Technology

[0002] High-ceilinged air conditioning systems are widely used in large venues such as industrial plants, stadiums, and exhibition halls, with their core function being to regulate the temperature of a wide area. However, due to the large ceiling height and complex airflow organization, these air conditioning systems face significant energy consumption challenges during operation.

[0003] Firstly, air conditioners in tall spaces are typically ceiling-mounted, using strong convection to deliver air downwards for uniform temperature distribution. This installation method results in a significant temperature difference between the equipment and the ground, especially during heating or cooling. The excessively high heat exchange temperature difference causes core components such as the compressor to operate in an inefficient range, leading to a significant increase in energy consumption.

[0004] Secondly, the heat exchange efficiency of existing air conditioners is limited. In large spaces, the heat exchangers (such as evaporators and condensers) experience a gradual decline in efficiency over long-term operation due to dust accumulation and component aging. In particular, the air inlet filter is easily clogged with dust, increasing air resistance, reducing airflow, and causing dirt buildup on the heat exchanger surface, further deteriorating heat exchange performance. However, due to the high installation location of the equipment, manual cleaning and maintenance are difficult, and frequent maintenance is costly, making it difficult to maintain the filter in optimal condition, creating a vicious cycle of energy consumption and maintenance issues.

[0005] Furthermore, existing air conditioning systems lack effective auxiliary energy-saving measures. Traditional compressors have low energy efficiency ratios under high temperature differences, while emerging technologies such as magnetic refrigeration, although highly efficient, have small cooling capacities and are unable to independently handle primary cooling tasks. There are currently no feasible solutions for integrating low-carbon technologies such as magnetic refrigeration into air conditioning systems as auxiliary means to improve overall energy efficiency. At the same time, the lack of automated cleaning technologies for components such as filters prevents regular, low-energy maintenance, further hindering the continuous optimization of system energy efficiency.

[0006] Therefore, there is an urgent need for an improved air conditioning device for large spaces that can reduce the temperature difference of heat load through auxiliary heat exchange technology, improve heat exchange efficiency, and integrate an automated cleaning mechanism to reduce maintenance needs, thereby reducing overall energy consumption and achieving green and low-carbon operation. Summary of the Invention

[0007] To address the aforementioned problems, the present invention aims to provide an improved air conditioning device for large spaces.

[0008] The specific technical solution is as follows: An improved air conditioning device for tall spaces includes a box with an opening at the bottom, an air inlet on the side wall of the box, a heat exchanger and a magnetic cooling auxiliary unit inside the box, the magnetic cooling auxiliary unit including a permanent magnet rotating assembly, a magnetic cooling heat exchange mechanism coaxially sleeved in the permanent magnet rotating assembly, a plate heat exchanger set at the air inlet as a filter, and a heat dissipation mechanism set at the top of the box, the magnetic cooling heat exchange mechanism, the plate heat exchanger and the heat dissipation mechanism forming a circulating cooling loop through pipes; Each plate heat exchanger on the sidewall is equipped with a vibration cleaning component on its outer side for cleaning the plate heat exchanger and maintaining ventilation efficiency.

[0009] Furthermore, the housing includes an auxiliary housing, the lower end of which is open and connected to the main housing. The magnetic cooling auxiliary unit is located inside the auxiliary housing, and the heat exchanger is located inside the main housing. The heat exchanger is equipped with an inlet pipe and an outlet pipe extending to the outside of the main housing.

[0010] Furthermore, the magnetic cooling heat exchange mechanism includes multiple magnetic cooling blocks arranged in a ring, two sets of water guiding components symmetrically arranged at the upper and lower ends of the magnetic cooling blocks, and a linkage shaft. Each set of water guiding components includes a first water guiding ring and a second water guiding ring arranged in parallel. Both the first and second water guiding rings are hollow structures. The upper first and second water guiding rings are connected to the upper end of the corresponding magnetic cooling block through connecting pipes, and the lower first and second water guiding rings are connected to the lower end of the corresponding magnetic cooling block through connecting pipes. The inner bottom surface of both the first and second water guiding rings is sealed and rotatably equipped with a closed ring plate. Two sets of through holes are symmetrically opened on the closed ring plate. The through holes on the closed ring plate inside the first and second water guiding rings are staggered. The linkage shaft is sleeved inside the two sets of water guiding components. The linkage shaft is fixedly connected to the closed ring plate. The permanent magnet rotating component is magnetically driven by the linkage shaft, thereby driving the closed ring plate to rotate and completing the switching of the through holes on the first and second water guiding rings to achieve circulating cooling.

[0011] Furthermore, the permanent magnet rotating assembly includes a rotating main component and permanent magnet blocks symmetrically arranged on the inner wall of the rotating main component. A cylindrical component is coaxially connected to the upper end of the rotating main component. The cylindrical component is sleeved outside the magnetic cooling heat exchange mechanism. An internal gear is coaxially provided at the top of the cylindrical component. A drive motor is provided at the top of the auxiliary housing. The output end of the drive motor passes through the auxiliary housing and is connected to a drive gear. The drive gear meshes with the internal gear, and the drive motor drives the permanent magnet rotating assembly to rotate.

[0012] Furthermore, the plate heat exchanger is provided with ventilation holes evenly distributed, and a rigid frame is provided on the outer edge of the plate heat exchanger. The rigid frame is connected to the inner wall of the main box by a telescopic rod and sealed by a frame-shaped sealing cloth. A first spring is provided on the outer sleeve of the telescopic rod. The plate heat exchanger is hollow inside. The plate heat exchangers are interconnected and are circulated through the first circulation pipe to the first and second water guide rings at the lower end of the magnetic cooling heat exchange mechanism.

[0013] Furthermore, the heat dissipation mechanism includes a circulating pump and a radiator, and the circulating pump, the radiator, and the first and second water guide rings at the upper end of the magnetic cooling heat exchange mechanism are circulatedly connected through a second circulating pipe.

[0014] Furthermore, the magnetic cooling block is hollow inside, and a cooling block is provided on the magnetic cooling block, which is filled with magnetic cooling particles.

[0015] Furthermore, the vibration cleaning assembly includes a fixed cover mounted on the outer wall of the auxiliary housing. The lower end of the fixed cover has an opening, and an inclined striking handle is provided inside the fixed cover. The lower end of the striking handle extends out of the opening and extends to the plate heat exchanger. A rubber ball is fixed to the lower end of the striking handle. A support handle is also provided inside the fixed cover. One end of the support handle is fixedly connected to the auxiliary housing, and the other end is rotatably connected to one side of the striking handle. A second spring for limiting the position is also provided between the striking handle and the auxiliary housing. A magnetic block is provided at the upper end of the striking handle. The rotation of the permanent magnet rotating assembly drives the striking handle to strike the plate heat exchanger.

[0016] Furthermore, the fixed cover is equipped with an electric telescopic rod, the telescopic end of which extends into the fixed cover and is connected to a stop block, the stop block corresponding to the upper end of the striking handle.

[0017] The beneficial effects of this invention are as follows: 1) By setting up a magnetic cooling auxiliary unit in conjunction with a plate heat exchanger, the air is cooled down when it is introduced from the air inlet and then passes through the heat exchanger, which can increase the heat exchange efficiency, thereby increasing the heat exchange effect and reducing energy consumption. 2) This invention uses the rotation of a permanent magnet rotating component in conjunction with a magnetic cooling heat exchange mechanism to perform magnetic cooling operation. Since magnetic cooling consumes less energy than a compressor, it can reduce the overall energy consumption of the equipment. 3) When the permanent magnet rotating component of the present invention rotates, it not only achieves the magnetic cooling effect, but also affects the four magnetic blocks of the vibration cleaning component, intermittently attracting the magnetic blocks. With the help of the spring setting, the rubber ball intermittently knocks and vibrates the plate heat exchanger, which serves as the filter screen. The electric telescopic rod can control whether to limit the knocking handle, thereby intermittently cleaning the dust on the plate heat exchanger as needed, thus ensuring the long-term working efficiency of the filter screen and better reducing the overall energy consumption of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the device of the present invention; Figure 2 This is a schematic diagram of the internal structure of the device of the present invention; Figure 3 This is a schematic diagram of the magnetic cooling auxiliary unit; Figure 4 This is a schematic diagram of the internal structure of the water guiding component; Figure 5This is a schematic diagram of the magnetic cooling block. Figure 6 This is a schematic diagram of the structure of the vibration cleaning component; Figure 7 This is a schematic diagram of the installation structure of a plate heat exchanger. Figure 8 This is a cross-sectional view of the rear structure of the vibration cleaning component; Figure 9 This is a schematic diagram showing the flow direction of the cooling medium in the magnetic cooling heat exchange mechanism and the heat dissipation mechanism.

[0019] In the diagram: 1. Housing; 11. Air inlet; 12. Auxiliary housing; 13. Main housing; 2. Heat exchanger; 3. Magnetic cooling auxiliary unit; 31. Permanent magnet rotating assembly; 311. Rotating main component; 312. Permanent magnet block; 313. Cylinder; 3131. Internal gear; 32. Magnetic cooling heat exchange mechanism; 321. Magnetic cooling block; 322. Water guiding assembly; 3221. First water guiding ring; 3222. Second water guiding ring; 3223. Closed ring plate; 323. Linkage shaft; 33. Plate 331. Rigid frame; 332. Telescopic rod; 333. Frame-type enclosed cloth sheet; 334. First spring; 335. First circulation pipe; 34. Heat dissipation mechanism; 341. Circulation pump; 342. Radiator; 343. Second circulation pipe; 4. Vibration cleaning assembly; 41. Fixing cover; 42. Tapping handle; 421. Rubber ball; 43. Support handle; 44. Second spring; 45. Magnetic block; 46. Electric telescopic rod; 5. Drive motor; 51. Drive gear. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0021] like Figure 1 and Figure 2 As shown, an improved air conditioning device for large spaces includes a housing 1, a heat exchanger 2, a magnetic cooling auxiliary unit 3, a vibration cleaning assembly 4, and a drive motor 5. The housing 1 includes an auxiliary housing 12, the lower end of which is open and connected to the main housing 13. Each of the four side walls of the main housing 13 has an air inlet 11. The magnetic cooling auxiliary unit 3 is located inside the auxiliary housing 12, and the heat exchanger 2 is located inside the main housing 13. The heat exchanger 2 has an inlet pipe and an outlet pipe extending to the outside of the main housing 13. The magnetic cooling auxiliary unit 3 includes a permanent magnet rotating assembly 31, a magnetic cooling heat exchange mechanism 32 coaxially sleeved within the permanent magnet rotating assembly 31, a plate heat exchanger 33 serving as a filter at the air inlet 11, and a heat dissipation mechanism 34 located at the top of the housing 1. The magnetic cooling heat exchange mechanism 32, the plate heat exchanger 33, and the heat dissipation mechanism 34 form a circulating cooling loop through pipes. Each plate heat exchanger 33 on the side wall is provided with a vibration cleaning component 4 for cleaning the plate heat exchanger 33 and maintaining ventilation efficiency.

[0022] like Figure 3 As shown, the permanent magnet rotating assembly 31 includes a rotating main component 311 and permanent magnet blocks 312 symmetrically arranged on the inner wall of the rotating main component 311. A cylindrical component 313 is coaxially connected to the upper end of the rotating main component 311. The cylindrical component 313 is sleeved outside the magnetic cooling heat exchange mechanism 32. An internal gear 3131 is coaxially provided at the top end of the cylindrical component 313. The drive motor 5 is located at the top of the auxiliary housing 12. The output end of the drive motor 5 passes through the auxiliary housing 12 and is connected to the drive gear 51. The drive gear 51 meshes with the internal gear 3131, and the drive motor 5 drives the permanent magnet rotating assembly 31 to rotate. The magnetic cooling heat exchange mechanism 32 includes multiple magnetic cooling blocks 321 arranged in a ring, two sets of water guiding components 322 symmetrically arranged at the upper and lower ends of the magnetic cooling blocks 321, and a linkage shaft 323, as shown. Figure 5 As shown, the magnetic cooling block 321 is hollow inside, and a cooling block is provided on the magnetic cooling block 321. The cooling block is filled with magnetic cooling particles. Figure 4 As shown, each water guiding component 322 includes a first water guiding ring 3221 and a second water guiding ring 3222 arranged side by side. Both the first water guiding ring 3221 and the second water guiding ring 3222 are hollow structures. The upper first water guiding ring 3221 and the second water guiding ring 3222 are respectively connected to the upper end of the corresponding magnetic cooling block 321 through a connecting pipe. The lower first water guiding ring 3221 and the second water guiding ring 3222 are respectively connected to the lower end of the corresponding magnetic cooling block 321 through a connecting pipe. Each first water guiding ring 3221 and each Each second water guide ring 3222 has a sealed and rotatable closed ring plate 3223 on its inner bottom surface. The closed ring plate 3223 has two sets of through holes symmetrically opened. The through holes on the closed ring plate 3223 in the first water guide ring 3221 and the second water guide ring 3222 of each water guide assembly 322 are staggered. The two sets of water guide assemblies 322 are fitted with a linkage shaft 323. The linkage shaft 323 is fixedly connected to all the closed ring plates 3223. The permanent magnet rotating assembly 31 is magnetically driven by the linkage shaft 323.

[0023] like Figure 7 As shown, the plate heat exchanger 33 has evenly spaced ventilation holes. A rigid frame 331 is provided on the outer edge of the plate heat exchanger 33. The rigid frame 331 is connected to the inner wall of the main housing 13 by a telescopic rod 332 and sealed by a frame-shaped sealing cloth 333. A first spring 334 is provided on the outer sleeve of the telescopic rod 332. The plate heat exchanger 33 is hollow inside. The plate heat exchangers 33 are interconnected and are circulated through the first circulation pipe 335 to the first water guide ring 3221 and the second water guide ring 3222 at the lower end of the magnetic cooling heat exchange mechanism 32.

[0024] like Figure 3As shown, the heat dissipation mechanism 34 includes a circulation pump 341 and a radiator 342. The circulation pump 341, the radiator 342 and the first water guide ring 3221 and the second water guide ring 3222 at the upper end of the magnetic cooling heat exchange mechanism 32 are circulatedly connected through the second circulation pipe 343.

[0025] like Figure 6 and Figure 8 As shown, the vibration cleaning assembly 4 includes a fixed cover 41 mounted on the outer wall of the auxiliary housing 12. The lower end of the fixed cover 41 has an opening. An inclined striking handle 42 is mounted inside the fixed cover 41, extending from the opening to the plate heat exchanger 33. A rubber ball 421 is fixed to the lower end of the striking handle 42. A support handle 43 is also mounted inside the fixed cover 41. One end of the support handle 43 is fixedly connected to the auxiliary housing 12, and the other end is rotatably connected to one side of the striking handle 42. A second spring 44 for limiting the position is also provided between the striking handle 42 and the auxiliary housing 12. A magnetic block 45 is mounted at the upper end of the striking handle 42. The rotation of the permanent magnet rotating assembly 31 drives the striking handle 42 to strike the plate heat exchanger 33. An electric telescopic rod 46 is mounted on the fixed cover 41. The telescopic end of the electric telescopic rod 46 extends into the fixed cover 41 and is connected to a stop block, which corresponds to the upper position of the striking handle 42.

[0026] When the permanent magnet rotating assembly 31 rotates, it intermittently attracts the magnetic blocks 45 of the four vibration cleaning assemblies 4, causing the upper end of the striking handle 42 to move against the elastic force of the second spring 44. Due to the restriction of the support handle 43, the striking handle 42 rotates, and the rubber ball 421 at its lower end strikes the plate heat exchanger 33, which acts as a filter, causing the plate heat exchanger 33 to vibrate and shake off the dust, thereby ensuring the normal operation of the plate heat exchanger 33. However, this tapping does not need to be continuous. Continuous vibration can easily affect the lifespan of the equipment. Therefore, this tapping needs to be carried out periodically, such as every other day for a period of time or for a longer period once a week. Thus, an electric telescopic rod 46 is installed. The electric telescopic rod 46 can be controlled by a microcontroller to operate intermittently. When extended, it locks the tapping handle 42; when shortened, it releases the restriction on the tapping handle 42, allowing it to swing under magnetic force. By maintaining a certain amount of tapping within fixed time intervals, the plate heat exchanger 33 can be kept clean, thereby extending the time that the plate heat exchanger 33 is in good working condition. This eliminates the need for frequent cleaning by personnel and also ensures energy efficiency, thus achieving a green and environmentally friendly effect.

[0027] When the medium passes through the magnetic cooling block 321, heat exchange is required, namely, heat release and heat absorption. The magnetic cooling particles inside the magnetic cooling block 321 can be made of gadolinium-based alloys or lanthanum-iron-silicon alloys. They can release heat when subjected to magnetic force and absorb heat when demagnetized, thus exchanging heat with the flowing medium. The permanent magnet rotating assembly 31 is rotated, so a single magnetic cooling block 321 is constantly being affected by heat release and absorption. Therefore, it is necessary to continuously change the magnetic cooling blocks 321 through which the inlet and outlet water flow. Thus, a closed ring plate 3223 is installed in all water guiding rings.

[0028] The drive motor 5 drives the permanent magnet rotating assembly 31 to rotate. When the permanent magnet rotating assembly 31 rotates, it also drives the linkage shaft 323 to rotate synchronously through magnetic coupling. Since the closed ring plate 3223 is fixedly connected to the linkage shaft 323, the four closed ring plates 3223 rotate simultaneously. Due to the staggered design of the through holes in the four closed ring plates 3223, the medium flowing between two water guide rings always enters the magnetic cold block 321 in a heat-releasing state, while the medium flowing between the other two water guide rings always enters the magnetic cold block 321 in a heat-absorbing state. The water guide ring that enters the cold medium then guides the cold water into the four plate heat exchangers 33. Then, the medium that has been heat-exchanged in the plate heat exchangers 33 is reintroduced into the water guide ring of the hot medium.

[0029] according to Figure 9 To further explain, in the initial state, the permanent magnet block 312 in the permanent magnet rotating assembly 31 corresponds to the through holes in the closed ring plate 3223 of the upper and lower second water guide rings 3222. At this time, the magnetic cooling blocks 321 at these two locations are heated by magnetic force. After the medium is heated, it enters the circulation pump 341 and the radiator 342 through the second circulation pipe 343 for heat dissipation before entering the upper first water guide ring 3221. The through holes in the closed ring plate 3223 of the upper and lower first water guide rings 3221 correspond to the magnetic cooling blocks 3222. Block 321 is demagnetized and absorbs heat. The medium in the upper first water guide ring 3221, after being initially cooled by the heat dissipation mechanism 34, flows through the magnetic cooling block 321 in a heat-absorbing state and is further cooled before entering the lower first water guide ring 3221. It then enters the plate heat exchanger 33 through the first circulation pipe 335 to cool the incoming hot air. After the water temperature in the plate heat exchanger 33 rises, it enters the lower second water guide ring 3222 and flows through the magnetic cooling block 321 in a heat-releasing state to be heated before entering the upper second water guide ring 3222.

[0030] When the permanent magnet rotating assembly 31 rotates, it drives all the closed ring plates 3223 to rotate simultaneously. All the closed ring plates 3223 rotate along with the permanent magnet rotating assembly 31. During this rotation, the through holes on the closed ring plates 3223 rotate and pass through different magnetic cooling blocks 321. During this process, the cooling medium in the second circulation pipe 343 enters the upper and lower first water guide rings 3221. The cooling medium in the upper first water guide ring 3221 is constantly transported towards the lower first water guide ring 3221. The cooling medium in the lower first water guide ring 3221 enters the four plate heat exchangers 33 through the first circulation pipe 335, and then from the four plate heat exchangers 33, it enters the lower second water guide ring 3222 through the first circulation pipe 335. The cooling medium in the lower second water guide ring 3222... The coolant is continuously transported to the upper second water guide ring 3222 and re-enters the second circulation pipe 343, which constitutes the circulation of the cooling medium. Simultaneously, the four closed ring plates 3223 and the permanent magnet rotating assembly 31 rotate. The four closed ring plates 3223 are paired to ensure the circulation of the cooling medium. Due to the rotation of the closed ring plates 3223, the cooling medium in the upper first water guide ring 3221 passes through different magnetic cooling blocks 321 and enters the lower first water guide ring 3221. The synchronous rotation of the closed ring plates 3223 and the permanent magnet rotating assembly 31 ensures that the cooling medium passing through these magnetic cooling blocks 321 receives a cooling effect. The other magnetic cooling blocks 321 are used to facilitate the flow of cooling medium between the middle second water guide rings 3222, thus removing heat.

Claims

1. An improved air conditioning device for large spaces, characterized in that, The box (1) includes a box with an opening at the bottom. An air inlet (11) is provided on the side wall of the box (1). A heat exchanger (2) and a magnetic cooling auxiliary unit (3) are provided inside the box (1). The magnetic cooling auxiliary unit (3) includes a permanent magnet rotating assembly (31), a magnetic cooling heat exchange mechanism (32) coaxially sleeved in the permanent magnet rotating assembly (31), a plate heat exchanger (33) set at the air inlet (11) as a filter screen, and a heat dissipation mechanism (34) set at the top of the box (1). The magnetic cooling heat exchange mechanism (32), the plate heat exchanger (33) and the heat dissipation mechanism (34) form a circulating cooling loop through pipes. Each plate heat exchanger (33) corresponding to the side wall is provided with a vibration cleaning component (4) for cleaning the plate heat exchanger (33) and maintaining ventilation efficiency.

2. The improved air conditioning device for large spaces as described in claim 1, characterized in that, The housing (1) includes an auxiliary housing (12), the lower end of which is open and connected to the main housing (13). The magnetic cooling auxiliary unit (3) is located inside the auxiliary housing (12), and the heat exchanger (2) is located inside the main housing (13). The heat exchanger (2) is provided with an inlet pipe and an outlet pipe extending to the outside of the main housing (13).

3. An improved air conditioning device for large spaces as described in claim 1, characterized in that, The magnetic cooling heat exchange mechanism (32) includes multiple magnetic cooling blocks (321) arranged in a ring, two sets of water guiding components (322) symmetrically arranged at the upper and lower ends of the magnetic cooling blocks (321), and a linkage shaft (323). Each set of water guiding components (322) includes a first water guiding ring (3221) and a second water guiding ring (3222) arranged in parallel. The first water guiding ring (3221) and the second water guiding ring (3222) are both hollow structures. The upper first water guiding ring (3221) and the second water guiding ring (3222) are respectively connected to the upper end of the corresponding magnetic cooling block (321) through a connecting pipe. The lower first water guiding ring (3221) and the second water guiding ring (3222) are respectively connected to the lower end of the corresponding magnetic cooling block (321) through a connecting pipe. The inner bottom surfaces of the first water guide ring (3221) and the second water guide ring (3222) are both sealed and rotatably equipped with a closed ring plate (3223). Two sets of through holes are symmetrically opened on the closed ring plate (3223). The through holes on the closed ring plate (3223) in the first water guide ring (3221) and the second water guide ring (3222) are respectively staggered. The two sets of water guide components (322) are fitted with a linkage shaft (323). The linkage shaft (323) is fixedly connected to the closed ring plate (3223). The permanent magnet rotating component (31) is magnetically driven by the linkage shaft (323), thereby driving the closed ring plate (3223) to rotate, completing the switching of the through holes on the first water guide ring (3221) and the second water guide ring (3222), and realizing circulating cooling.

4. An improved air conditioning device for large spaces as described in claim 3, characterized in that, The permanent magnet rotating assembly (31) includes a rotating main component (311) and permanent magnet blocks (312) symmetrically arranged on the inner wall of the rotating main component (311). A cylindrical component (313) is coaxially connected to the upper end of the rotating main component (311). The cylindrical component (313) is sleeved outside the magnetic cooling heat exchange mechanism (32). An internal gear (3131) is coaxially provided at the top end of the cylindrical component (313). A drive motor (5) is provided at the top of the auxiliary housing (12). The output end of the drive motor (5) passes through the auxiliary housing (12) and is connected to the drive gear (51). The drive gear (51) meshes with the internal gear (3131). The drive motor (5) drives the permanent magnet rotating assembly (31) to rotate.

5. An improved air conditioning device for large spaces as described in claim 4, characterized in that, The plate heat exchanger (33) is provided with ventilation holes evenly. A rigid frame (331) is provided on the outer edge of the plate heat exchanger (33). The rigid frame (331) is connected to the inner wall of the main box (13) by a telescopic rod (332) and sealed by a frame-shaped sealing cloth (333). A first spring (334) is provided on the outer sleeve of the telescopic rod (332). The plate heat exchanger (33) is hollow inside. The plate heat exchangers (33) are interconnected and are circulated through the first circulation pipe (335) and the first water guide ring (3221) and the second water guide ring (3222) at the lower end of the magnetic cooling heat exchange mechanism (32).

6. An improved air conditioning device for large spaces as described in claim 5, characterized in that, The heat dissipation mechanism (34) includes a circulation pump (341) and a radiator (342). The circulation pump (341), the radiator (342) and the first water guide ring (3221) and the second water guide ring (3222) at the upper end of the magnetic cooling heat exchange mechanism (32) are circulatedly connected through the second circulation pipe (343).

7. An improved air conditioning device for large spaces as described in claim 6, characterized in that, The magnetic cooling block (321) is hollow inside, and a cooling block is provided on the magnetic cooling block (321), which is filled with magnetic cooling particles.

8. An improved air conditioning device for large spaces as described in claim 7, characterized in that, The vibration cleaning assembly (4) includes a fixed cover (41) set on the outer wall of the auxiliary housing (12). The lower end of the fixed cover (41) is provided with an opening. The fixed cover (41) is provided with an inclined striking handle (42). The lower end of the striking handle (42) extends out of the opening and extends to the plate heat exchanger (33). The lower end of the striking handle (42) is fixed with a rubber ball (421). The fixed cover (41) is also provided with a support handle (43). One end of the support handle (43) is fixedly connected to the auxiliary housing (12), and the other end is rotatably connected to one side of the striking handle (42). A second spring (44) for limiting is also provided between the striking handle (42) and the auxiliary housing (12). The upper end of the striking handle (42) is provided with a magnetic block (45). The rotation of the permanent magnet rotating assembly (31) drives the striking handle (42) to strike the plate heat exchanger (33).

9. An improved air conditioning device for large spaces as described in claim 8, characterized in that, The fixed cover (41) is provided with an electric telescopic rod (46). The telescopic end of the electric telescopic rod (46) extends into the fixed cover (41) and is connected to a stop block. The stop block corresponds to the upper position of the striking handle (42).

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