All-season natural cooling magnetic suspension unit

Abstract

The invention discloses an all-season natural cooling magnetic suspension unit, and belongs to the field of heat exchange. An all-season natural cooling magnetic suspension unit comprises a heat exchanger, an evaporator, a compressor, a heat exchanger and a fan. The heat exchanger comprises a shell, heating sets longitudinally arranged in the shell and a central pipe fixedly connected to the middle of the shell. The heating group comprises heating units which are uniformly arranged along the circumferential direction; the heating unit comprises a gas tank communicated with the central pipe and a water tank mounted in the gas tank; the water tank is rotationally connected with a water inlet valve for controlling water inlet and a water outlet valve for controlling water outlet; a plurality of driving units which are longitudinally arranged and longitudinally slide in the shell are arranged in the heat exchanger; the driving unit comprises a rotating gear ring and a switching ring which are coaxially arranged with the central pipe; according to the scheme, the independent heating units are arranged, the size of each water tank is relatively small, and the heating speed is high.

Description

Technical Field

[0001] The invention belongs to the field of heat exchange, and more specifically, relates to an all-season natural cooling magnetic suspension unit. Background Art

[0002] The magnetic levitation unit is mainly used for cooling the energy storage room. The general freezing temperature is controlled at about 18°C. During the refrigeration process of the unit, the heat exchanger needs to dissipate heat. The dissipated heat can be recycled and used to heat the cold water to form domestic hot water.

[0003] In the existing units, the heat generated by the heat exchanger is directly introduced into the water tank to continuously heat the water in the water tank. However, the water tank is large in size and stores a large amount of water. When the heat generated by the heat exchanger is insufficient, it is difficult to heat the water in the water tank to the set temperature. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an all-season natural cooling magnetic levitation unit, which can divide a water tank into multiple units for separate heating.

[0005] The present invention discloses an all-season natural cooling magnetic levitation unit, comprising a heat exchanger, an evaporator, a compressor, a heat exchanger and a fan; the heat exchanger comprises an outer shell, a heating group arranged longitudinally in the outer shell, and a central tube fixedly connected to the middle of the outer shell; the heating group comprises heating units uniformly arranged along the circumferential direction; the heating unit comprises an air box connected to the central tube and a water tank installed in the air box; a water inlet valve for controlling water inlet and a water outlet valve for controlling water outlet are rotatably connected to the water tank; a plurality of longitudinally arranged driving units longitudinally sliding in the outer shell are arranged in the heat exchanger; the driving unit comprises a rotating gear ring and a switching ring coaxially arranged with the central tube; a switching gear meshing with the rotating gear ring and capable of driving the movement of the water inlet valve or the water outlet valve is rotatably connected to the switching ring at an eccentric position; when the switching ring is in the middle position, the rotating gear ring drives the switching ring to rotate synchronously in the circumferential direction; when the switching ring is in the upper or lower limit position, the switching ring cannot rotate, and the rotating gear ring drives the switching gear to rotate.

[0006] As a further improvement of the present invention, the switching ring is provided with a stop block which can be plugged into the outer wall of the air box to prevent the switching ring from rotating.

[0007] As a further improvement of the present invention, the air box is provided with an air intake pipe connected to the central pipe; the side wall of the air intake pipe is evenly provided with air vents connected to the interior of the air box; the side wall of the water tank is provided with an air chamber facing the air intake pipe; a piston body is sealingly and slidably connected in the air chamber; and the piston body is inserted into the air intake pipe.

[0008] As a further improvement of the present invention, an exhaust pipe is provided on the side wall of the air box; a valve plate capable of closing the exhaust pipe is longitudinally slidably connected inside the air box; a float is provided in the water tank; a sliding magnet is provided on the outer wall of the water tank which longitudinally slides synchronously with the float through magnetic force; the sliding magnet is connected to the valve plate through a spring; an elastic protrusion is provided on the side wall of the valve plate; and a limiting protrusion is provided on the inner wall of the air box which abuts against the elastic protrusion and thereby hinders the movement of the valve plate.

[0009] As a further improvement of the present invention, a water inlet pipe is arranged at the upper end of the water tank and a drain pipe is arranged at the lower end; the water inlet valve is arranged in the water inlet pipe, and the water outlet valve is arranged in the drain pipe; the water outlet valve is coaxially provided with a water outlet gear; the water inlet valve is coaxially provided with a water inlet gear.

[0010] As a further improvement of the present invention, a baffle is longitudinally slidably connected inside the central tube; the baffle is sealed against the inner wall of the central tube; the baffle and the rotating gear ring move synchronously through magnetic force; and a screw is rotatably connected inside the central tube and is connected to the baffle through threaded transmission.

[0011] As a further improvement of the present invention, the outer wall of the screw is provided with a limit groove distributed along the axial direction; the upper end of the baffle is provided with a spring plate distributed along the radial direction of the baffle; the end of the spring plate away from the screw is fixed to the baffle, and the end close to the screw is provided with a stop plug that can be plugged into the limit groove to relatively fix the baffle and the screw.

[0012] As a further improvement of the present invention, an air inlet connected to the central tube is provided at the upper end of the shell; the heat exchanger and the air inlet are connected through a ventilation pipe; a fan is installed in the ventilation pipe; the spring is arc-shaped; when hot air enters the central tube, the hot air will generate thrust on the spring, thereby engaging the stop plug with the limit groove.

[0013] As a further improvement of the present invention, the outer wall of the baffle is evenly provided with driving magnets along the circumferential direction; the driving unit also includes a synchronous gear ring coaxially arranged with the rotating gear ring; the synchronous gear ring is evenly provided with synchronous magnets along the circumferential direction that can be mutually attracted with the driving magnets; the synchronous gear ring is transmission connected with the rotating gear ring.

[0014] As a further improvement of the present invention, the driving unit further includes a sensor fixedly connected to the switching gear.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting up multiple independent heating units, the volume of each water tank is relatively small and the heating speed is fast, and different numbers of water tanks are heated according to water demand and the amount of heat generated by the heat exchanger, thereby avoiding the hot water temperature not meeting the standard due to the small amount of heat generated by the heat exchanger.

[0016] This solution provides a float and a valve plate so that when there is no water in the water tank, the valve plate closes the exhaust pipe, and the hot air no longer heats the water tank. The hot air will heat other water tanks more concentratedly to avoid heat waste.

[0017] This solution sets up an air chamber and a piston body. When the water temperature in the water tank reaches the standard, the piston body closes the vent hole, and the hot air in the central tube no longer heats the water tank. The water tank is kept warm by the residual heat in the air chamber. The hot air in the central tube can heat the remaining water tanks, improve heating efficiency, and avoid heat waste.

[0018] In this solution, the hot air entering the central tube can not only heat the water in the water tank, but also generate thrust on the spring piece to control whether the stop plug is plugged into the limit groove, so that when the screw rotates, the screw can drive the baffle to move longitudinally and change the position of the baffle, so that the hot air cannot enter under the baffle, and the baffle can allow each heating group to heat layer by layer and be adjusted according to usage requirements.

[0019] In this scheme, a driving unit is set up, and the movement of the rotating gear ring can drive the switching ring and the switching gear to rotate synchronously in a circumferential direction, change the position of the switching gear, and make the switching gear move to the bottom of the designated heating unit. At the same time, the rotating gear ring can also drive the switching gear to rotate on its own, and then the switching gear can control the opening and closing of the water inlet valve and the water outlet valve, thereby controlling the water inlet and outlet of the water tank.

[0020] The baffle of this solution drives the driving unit to move through the driving magnet, so that when the baffle rotates, the baffle drives the synchronous gear ring to rotate together. When the baffle moves longitudinally, the baffle drives the driving unit to move longitudinally synchronously, so that when the driving unit is at the upper limit position, the switching gear controls the opening and closing of the water inlet valve, and when the driving unit is at the lower limit position, the switching gear controls the opening and closing of the water outlet valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic structural diagram of the heat exchanger of the present invention; Figure 3 It is a schematic diagram of the structure of each heating unit of the present invention; Figure 4 It is a structural schematic diagram of the float of the present invention when it is located at the upper limit position; Figure 5 It is a structural schematic diagram of the float of the present invention when it is located at the lower limit position; Figure 6 It is a structural schematic diagram of the drive unit of the present invention; Figure 7 It is a structural schematic diagram of the present invention when the driving unit is located in the middle position; Figure 8 It is a schematic structural diagram of the stop plug of the present invention when it is plugged into the limiting groove.

[0022] Description of the numbers in the figure: 11. Heat exchanger; 12. Evaporator; 13. Compressor; 14. Heat exchanger; 15. Fan; 2. Casing; 21. Drain; 22. Air inlet; 23. Water inlet; 24. Exhaust; 3. Heating unit; 31. Air box; 311. Air inlet pipe; 312. Air vent; 313. Exhaust pipe; 314. Positioning protrusion; 32. Water tank; 321. Air chamber; 322. Water inlet pipe; 323. Drain pipe; 324. Water inlet valve hole; 325. Water outlet valve hole; 33. Piston body; 34. Water inlet valve; 341. Water inlet gear; 342. Water inlet through hole; 35. Water outlet valve; 351, water outlet gear; 352, water outlet through hole; 36, float; 37, sliding magnet; 38, valve plate; 381, connecting hole; 382, ​​elastic protrusion; 39, spring; 4, drive unit; 41, synchronous gear ring; 411, synchronous magnet; 42, transmission gear; 421, abutment plate; 43, rotating gear ring; 44, switching ring; 441, anti-rotation plug; 45, switching gear; 451, connecting gear; 5, center tube; 51, perforation; 6, screw; 61, limit groove; 7, baffle; 71, drive magnet; 72, spring; 721, stop plug. DETAILED DESCRIPTION

[0023] Specific embodiment 1: Please refer to Figure 1-Figure 8 An all-season natural cooling magnetic levitation unit includes a heat exchanger 11, an evaporator 12, a compressor 13, a heat exchanger 14, and a fan 15; the heat exchanger 14 includes a shell 2, a heating group arranged longitudinally in the shell 2, and a central tube 5 fixedly connected to the middle of the shell 2; the heating group includes heating units 3 uniformly arranged along the circumferential direction; the heating unit 3 includes an air box 31 connected to the central tube 5, and a water tank 32 installed in the air box 31; the water tank 32 is rotatably connected with a water inlet valve 34 for controlling water inlet and a water outlet valve 35 for controlling water outlet; the heat exchanger 14 is provided with a plurality of longitudinally arranged drive units longitudinally sliding in the shell 2 4; the driving unit 4 includes a rotating gear ring 43 and a switching ring 44 which are coaxially arranged with the central tube 5; a switching gear 45 which is rotatably connected at an eccentric position on the switching ring 44 and is meshed with the rotating gear ring 43 and can drive the water inlet valve 34 or the water outlet valve 35 to move; when the switching ring 44 is located in the middle position, the rotating gear ring 43 drives the switching ring 44 to rotate synchronously in the circumferential direction, changes the position of the switching gear 45, and makes the switching gear 45 face different heating units 3; when the switching ring 44 is located in the upper or lower extreme position, the switching ring 44 cannot rotate, and the rotating gear ring 43 drives the switching gear 45 to rotate, thereby moving the corresponding water inlet valve 34 or the water outlet valve 35.

[0024] The switching ring 44 is provided with a stop block 441 which can be plugged into the outer wall of the air box 31 to prevent the switching ring 44 from rotating; when the switching ring 44 is located at the upper or lower extreme position, the stop block 441 is plugged into the outer wall of the air box 31, and the switching ring 44 cannot rotate.

[0025] The air box 31 is provided with an air intake pipe 311 connected with the central pipe 5; the side wall of the air intake pipe 311 is evenly provided with air vents 312 connected with the inside of the air box 31; the side wall of the water tank 32 is provided with an air chamber 321 directly opposite to the air intake pipe 311; the air chamber 321 is sealed and slidably connected with a piston body 33; the piston body 33 is inserted into the air intake pipe 311; when the internal temperature of the water tank 32 changes, the gas volume in the air chamber 321 changes, thereby driving the piston body 33 to slide, and the piston body 33 causes the effective air intake area of ​​the air vent 312 to change.

[0026] The side wall of the central tube 5 is provided with a plurality of through holes 51 , and one through hole 51 is sealed and plugged with an air inlet pipe 311 ; the air chamber 321 stores volatile gas.

[0027] When the temperature of the water in the water tank 32 rises, the gas in the air chamber 321 expands due to the heat, and the piston body 33 moves to the outside of the air chamber 321. The piston body 33 blocks the vent 312, thereby reducing the effective air intake area of ​​the vent 312, thereby reducing the gas entering the air tank 31; when the temperature of the water in the water tank 32 reaches the set value, the piston body 33 covers all the vents 312.

[0028] An exhaust pipe 313 is provided on the side wall of the air box 31; a valve plate 38 capable of closing the exhaust pipe 313 is longitudinally slidably connected inside the air box 31; a float 36 is provided in the water tank 32; a sliding magnet 37 is provided on the outer wall of the water tank 32, which longitudinally slides synchronously with the float 36 through magnetic force; the sliding magnet 37 is connected to the valve plate 38 through a spring 39; an elastic protrusion 382 is provided on the side wall of the valve plate 38; a limiting protrusion 314 is provided on the inner wall of the air box 31, which abuts against the elastic protrusion 382 and thereby hinders the movement of the valve plate 38.

[0029] The valve plate 38 is provided with a connection hole 381 communicating with the exhaust pipe 313 ; when the valve plate 38 is located at the upper limit position, the limiting protrusion 314 abuts against the elastic protrusion 382 , and the connection hole 381 faces the exhaust pipe 313 .

[0030] When the water level in the water tank 32 drops to the limit position, the float 36 and the sliding magnet 37 move downward to the limit position synchronously, and the spring 39 generates a downward pulling force on the valve plate 38, and at this time the pulling force is greater than the friction between the limiting protrusion 314 and the elastic protrusion 382, ​​so that the valve plate 38 moves downward rapidly, and the valve plate 38 closes the exhaust pipe 313.

[0031] The water tank 32 is provided with a water inlet pipe 322 at the upper end and a drain pipe 323 at the lower end; the water inlet valve 34 is arranged in the water inlet pipe 322, and the water outlet valve 35 is arranged in the drain pipe 323; the water outlet valve 35 is coaxially provided with a water outlet gear 351; the water inlet valve 34 is coaxially provided with a water inlet gear 341.

[0032] The water inlet pipe 322 is provided with a water inlet valve hole 324; the water inlet valve 34 is provided with a water inlet through hole 342 which can be communicated with the water inlet valve hole 324; the drain pipe 323 is provided with a water outlet valve hole 325; the water outlet valve 35 is provided with a water outlet through hole 352 which can be communicated with the water outlet valve hole 325.

[0033] A driving unit 4 is installed between two adjacent heating groups; the driving unit 4 only slides longitudinally within the range between the upper and lower heating units 3. When the driving unit 4 is at the upper limit position, the switching gear 45 meshes with the water inlet gear 341; when the driving unit 4 is at the lower limit position, the switching gear 45 meshes with the water outlet gear 351.

[0034] A baffle 7 is longitudinally slidably connected inside the central tube 5; the baffle 7 is sealed against the inner wall of the central tube 5; the baffle 7 and the rotating gear ring 43 move synchronously through magnetic force; a screw 6 is rotatably connected inside the central tube 5 and is connected to the baffle 7 through threaded transmission.

[0035] The hot air entering the central tube 5 can only enter the heating unit 3 located above the baffle 7, and the hot air cannot enter below the baffle 7, so that each heating group can be heated independently in layers.

[0036] The outer wall of the screw rod 6 is provided with a limit groove 61 distributed along the axial direction; the upper end of the baffle plate 7 is provided with a spring piece 72 distributed along the radial direction of the baffle plate 7; the spring piece 72 is fixed to the baffle plate 7 at one end away from the screw rod 6, and is provided with a stop plug 721 at the end close to the screw rod 6 that can be plugged into the limit groove 61 to fix the baffle plate 7 and the screw rod 6 relatively.

[0037] A motor for driving the screw rod 6 to rotate is fixedly connected inside the housing 2 .

[0038] The upper end of the shell 2 is provided with an air inlet 22 connected to the central tube 5; the heat exchanger 11 is connected to the air inlet 22 through a ventilation pipe; a fan is installed in the ventilation pipe; the spring 72 is arc-shaped; when hot air enters the central tube 5, the hot air will generate thrust on the spring 72, and then the stop plug 721 is plugged into the limit groove 61.

[0039] The fan draws the heat generated by the heat exchanger 11 into the central tube 5 through the ventilation pipe.

[0040] The outer wall of the baffle 7 is evenly provided with driving magnets 71 along the circumferential direction; the driving unit 4 also includes a synchronous gear ring 41 coaxially arranged with the rotating gear ring 43; the synchronous gear ring 41 is evenly provided with synchronous magnets 411 along the circumferential direction that can be mutually attracted with the driving magnets 71; the synchronous gear ring 41 is transmission-connected with the rotating gear ring 43.

[0041] The synchronous gear ring 41 and the rotating gear ring 43 are connected to each other through a transmission gear 42; the transmission gear 42 is rotatably connected in the housing 2; a reset spring is provided between the transmission gear 42 and the housing 2; when the drive unit 4 is not subjected to external force, the reset spring makes the drive unit 4 located in the middle position.

[0042] The transmission gear 42 is provided with abutment plates 421 at the upper and lower ends respectively; the two abutment plates 421 clamp the synchronous gear ring 41 and the rotating gear ring 43 in the middle, so that the synchronous gear ring 41, the transmission gear 42, and the rotating gear ring 43 move synchronously longitudinally.

[0043] The driving unit 4 further includes a sensor fixedly connected to the switching gear 45 .

[0044] The sensor is used to detect whether the switching gear 45 moves to the bottom of the designated heating unit 3 , detect whether the switching gear 45 is located at the middle position or the upper limit position or the lower limit position, and detect the rotation angle of the switching gear 45 .

[0045] The side wall of the shell 2 is provided with a drain port 21 connected to each drain pipe 323 through a hose, and a water inlet 23 connected to each water inlet pipe 322 through a hose; the water inlet 23 is connected to an external faucet; the drain port 21 is connected to an external water-using device.

[0046] The side wall of the housing 2 is provided with an exhaust port 24 ; the gas exhausted from the exhaust pipe 313 on the air box 31 enters the housing 2 and is then discharged to the outside through the exhaust port 24 .

[0047] The compressor 13 and the evaporator 12 work together to cool the room, and the heat exchanger 11 dissipates heat. The fan 15 cools the heat exchanger 11 and dissipates most of the heat to the outside. At the same time, the heat exchanger 14 works to store hot water.

[0048] When it is necessary to drain water from a heating unit 3 in the heat exchanger 14, the fan stops working, and no hot air enters the central tube 5, and then the spring sheet 72 separates the stop plug 721 from the limit groove 61. At this time, the motor drives the screw 6 to rotate, and the screw 6 drives the baffle 7 to move longitudinally, so that the baffle 7 moves to face the drive unit 4 below the heating unit 3. At this time, the baffle 7 and the drive unit 4 are located in the same horizontal plane, and the drive unit 4 is located in the middle position.

[0049] Then the fan starts working, hot air enters the center tube 5, and the hot air generates thrust on the spring piece 72, and the stop plug 721 is plugged into the limit groove 61. Then the motor drives the screw 6 to rotate, and the screw 6 will drive the baffle 7 to rotate synchronously. When the driving magnet 71 on the baffle 7 is tightly attracted to the synchronous magnet 411, the baffle 7 drives the synchronous gear ring 41 to rotate together, and the synchronous gear ring 41 drives the rotating gear ring 43 to rotate through the transmission gear 42. Since the driving unit 4 is in the middle position at this time, the rotating gear ring 43 drives the switching ring 44 and the switching gear 45 to move synchronously, and then the switching gear 45 moves under each heating unit 3 until the switching gear 45 moves to the bottom of the designated heating unit 3.

[0050] Then the hot air stops entering the central tube 5, and the stop plug 721 is separated from the limit groove 61. The screw 6 rotates, driving the baffle 7 to move downward, and at the same time, the baffle 7 drives the driving unit 4 to move downward synchronously through the driving magnet 71, so that the driving unit 4 moves to the lower limit position. At this time, the anti-rotation plug 441 is plugged into the outer wall of the air box 31, the switching ring 44 cannot rotate, and the switching gear 45 is meshed with the water outlet gear 351 in the heating unit 3.

[0051] Then, hot air enters the central tube 5, and the stop plug 721 is plugged into the limit groove 61. The screw 6 drives the baffle 7 to rotate synchronously, and the baffle 7 drives the synchronous gear ring 41 and the rotating gear ring 43 to rotate synchronously. Since the switching ring 44 cannot rotate at this time, the rotating gear ring 43 drives the switching gear 45 to rotate. The rotation of the switching gear 45 drives the water outlet gear 351 to rotate, and then the water outlet valve 35 is opened, and the water in the water tank 32 flows out from the drain pipe 323. After the hot water is no longer needed, the screw 6 rotates in the opposite direction to close the water outlet valve 35.

[0052] Similarly, when it is necessary to add cold water to the water tank 32 in a heating unit 3, the screw 6 cooperates with the fan to move the baffle 7 to face the drive unit 4 above the heating unit 3, and the drive unit 4 is located in the middle position. Then the baffle 7 drives the synchronous gear ring 41 to rotate, and the synchronous gear ring 41 drives the switching gear 45 to rotate along the circumference of the synchronous gear ring 41, so that the switching gear 45 moves to the top of the heating unit 3. Then the screw 6 drives the baffle 7 to move downward, so that the drive unit 4 moves to the lower limit position, the anti-rotation plug 441 is plugged and fixed with the air box 31, and the switching gear 45 is meshed with the water inlet gear 341. Then the screw 6 drives the baffle 7 to rotate synchronously, the synchronous gear ring 41 drives the switching gear 45 to rotate, and the switching gear 45 drives the water inlet gear 341 to rotate, and the water inlet valve 34 opens, and the water from the outside enters the water tank 32. After the water is filled, the screw 6 drives the baffle 7 to rotate in the opposite direction, and the water inlet valve 34 is closed.

[0053] When the screw 6 drives the baffle 7 to move up and down, if the baffle 7 is magnetically attracted to a drive unit 4, when the baffle 7 moves to a point where it is out of the up and down movement range of the drive unit 4, the drive magnet 71 will separate from the synchronous magnet 411, and the drive unit 4 will return to the middle position, and the baffle 7 will move toward the other drive unit 4.

[0054] When a water tank 32 delivers hot water to the outside, the water level in the water tank 32 gradually decreases, and the float 36 in the water tank 32 gradually moves downward, and then the sliding magnet 37 moves downward synchronously. The elastic force of the spring 39 gradually increases. When the float 36 and the sliding magnet 37 move to the lower limit position, the elastic force of the spring 39 is greater than the friction between the elastic protrusion 382 and the limit protrusion 314, and then the elastic protrusion 382 breaks through the limit of the limit protrusion 314, and the valve plate 38 moves downward rapidly, and the valve plate 38 closes the exhaust pipe 313. Since the exhaust pipe 313 is closed, a flowing gas passage cannot be formed, and then for the heating unit 3 without water, the hot air will not enter the corresponding air tank 31.

[0055] As water is poured into the water tank 32, the float 36 and the sliding magnet 37 move upward. When the water tank 32 is filled with water, the float 36 and the sliding magnet 37 move to the upper limit position. At this time, the spring 39 between the sliding magnet 37 and the valve plate 38 generates an upward pulling force on the valve plate 38, and the pulling force causes the elastic protrusion 382 to break through the limit of the limiting protrusion 314, and the valve plate 38 moves to the upper limit position again, and the exhaust pipe 313 is opposite to the connecting hole 381.

[0056] As the hot air enters the central tube 5, the hot air will pass through the perforation 51 and the air inlet pipe 311 and enter the air box 31. The hot air transfers heat to the water tank 32 to heat the water in the water tank 32. As the water temperature in the water tank 32 increases, the gas in the air chamber 321 expands, and then the piston body 33 gradually moves to the outside of the air chamber 321. The piston body 33 reduces the effective air intake area of ​​the vent 312, thereby reducing the hot air entering the air box 31. When the water temperature in the water tank 32 reaches the set value, the piston body 33 will close the vent 312 so that the hot air no longer enters the air box 31. The residual temperature in the air box 31 keeps the water tank 32 warm. The hot air will continue to heat other water tanks 32 to avoid heat waste.

[0057] When the water in each heating unit 3 in the top (first layer) heating group is not completely heated, the screw 6 drives the baffle 7 to move upward to the lower end of the top heating group. At this time, the hot air will not heat the heating group of the second layer, and the hot air will only heat the heating group of the top. After the heating of the top heating group is completed, the heating group of the second layer is heated. Each heating unit 3 is heated by heating layer by layer.

[0058] When the ambient temperature is 5℃ higher, the magnetic levitation compressor is used for refrigeration normally. The unit with heat recovery function can provide 40-45℃ hot water for domestic hot water use while refrigerating. When the ambient temperature is lower than 5℃, the unit starts the natural cooling function, stops the compressor, and starts the fluorine pump and EC fan to utilize the difference between the ambient temperature and the chilled water temperature to allow the refrigerant to circulate through the temperature change of the medium to achieve natural phase change heat transfer, thereby saving energy.

Claims

1. An all-season natural cooling magnetic suspension unit, characterized by: It includes a heat exchanger, an evaporator, a compressor, a heat exchanger, and a fan; the heat exchanger includes an outer shell, a heating group arranged longitudinally in the outer shell, and a central tube fixedly connected to the middle of the outer shell; the heating group includes heating units evenly arranged along the circumferential direction; the heating unit includes an air box connected to the central tube and a water tank installed in the air box; a water inlet valve for controlling water inlet and a water outlet valve for controlling water outlet are rotatably connected to the water tank; a plurality of longitudinally arranged driving units longitudinally sliding in the outer shell are arranged in the heat exchanger; the driving unit includes a rotating gear ring and a switching ring coaxially arranged with the central tube; a switching gear meshing with the rotating gear ring and capable of driving the movement of the water inlet valve or the water outlet valve is rotatably connected to the switching ring at an eccentric position; when the switching ring is in the middle position, the rotating gear ring drives the switching ring to rotate synchronously in the circumferential direction; when the switching ring is in the upper or lower extreme position, the switching ring cannot rotate, and the rotating gear ring drives the switching gear to rotate.

2. The all-season natural cooling magnetic suspension unit according to claim 1, characterized in that: The switching ring is provided with a rotation-stopping plug block which can be plugged into the outer wall of the air box to prevent the switching ring from rotating.

3. The all-season natural cooling magnetic suspension unit according to claim 1, characterized in that: The air box is provided with an air intake pipe connected to the central pipe; the side wall of the air intake pipe is evenly provided with air vents connected to the inside of the air box; the side wall of the water tank is provided with an air chamber facing the air intake pipe; a piston body is sealingly and slidably connected in the air chamber; and the piston body is inserted into the air intake pipe.

4. The all-season natural cooling magnetic suspension unit according to claim 1 is characterized in that: The air box side wall is provided with an exhaust pipe; the air box is longitudinally slidably connected with a valve plate capable of closing the exhaust pipe; the water tank is provided with a float; the water tank outer wall is provided with a sliding magnet which longitudinally slides synchronously with the float through magnetic force; the sliding magnet and the valve plate are connected through a spring; the valve plate side wall is provided with an elastic protrusion; the air box inner wall is provided with a limiting protrusion which abuts against the elastic protrusion and thereby hinders the movement of the valve plate.

5. The all-season natural cooling magnetic suspension unit according to claim 1, characterized in that: The water tank is provided with a water inlet pipe at the upper end and a drain pipe at the lower end; the water inlet valve is arranged in the water inlet pipe, and the water outlet valve is arranged in the drain pipe; the water outlet valve is coaxially provided with a water outlet gear; the water inlet valve is coaxially provided with a water inlet gear.

6. The all-season natural cooling magnetic levitation unit according to claim 1, characterized in that: A baffle is longitudinally slidably connected inside the central tube; the baffle is sealed against the inner wall of the central tube; the baffle and the rotating gear ring move synchronously through magnetic force; a screw is rotatably connected inside the central tube and is connected to the baffle through threaded transmission.

7. The all-season natural cooling magnetic suspension unit according to claim 6, characterized in that: The outer wall of the screw is provided with a limiting groove distributed along the axial direction; the upper end of the baffle is provided with a spring plate distributed along the radial direction of the baffle; the end of the spring plate away from the screw is fixed to the baffle, and the end close to the screw is provided with a stop plug that can be plugged into the limiting groove to relatively fix the baffle and the screw.

8. The all-season natural cooling magnetic suspension unit according to claim 7, characterized in that: An air inlet connected to the central tube is provided at the upper end of the shell; the heat exchanger is connected to the air inlet through a ventilation pipe; a fan is installed in the ventilation pipe; the spring is arc-shaped; when hot air enters the central tube, the hot air will generate thrust on the spring, thereby engaging the stop plug with the limit groove.

9. The all-season natural cooling magnetic levitation unit according to claim 6, characterized in that: The outer wall of the baffle is evenly provided with driving magnets along the circumference; the driving unit also includes a synchronous gear ring coaxially arranged with the rotating gear ring; the synchronous gear ring is evenly provided with synchronous magnets that can be mutually attracted with the driving magnets along the circumference; the synchronous gear ring is transmission-connected with the rotating gear ring.

10. The all-season natural cooling magnetic suspension unit according to claim 1, characterized in that: The driving unit also includes a sensor fixedly connected to the switching gear.

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