Household air conditioning system applying solar heat pump technology and air conditioning heat pump unit

Abstract

The invention relates to the technical field of air conditioners, and particularly discloses a household air conditioning system and an air conditioning heat pump unit applying a solar heat pump technology, the household air conditioning system comprises a circulating host and a photovoltaic module, the photovoltaic module is matched with a photovoltaic panel for use through a working medium flowing in the photovoltaic module, and electric energy generated by the photovoltaic module is used for a compressor in the circulating host. The circulating main machine and the photovoltaic assembly are remotely and locally controlled through the controller, the water tank is filled with super-heat-conducting liquid, when a heat exchanger of the circulating main machine releases heat to the outside, the heat can heat the low-temperature super-heat-conducting liquid in the water tank, the heated high-temperature super-heat-conducting liquid is pumped into the buffer water tank through the circulating pump, and the high-temperature super-heat-conducting liquid is heated through the buffer water tank. And a circulating outlet of the buffer water tank is respectively communicated with the floor heating pipe and the fan coil. And compared with a traditional air conditioner, dryness and air conditioner diseases can be effectively reduced, the advantage that blowing is softer is achieved, and the use comfort of the heat pump air conditioner is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a household air conditioning system and air conditioning heat pump unit that utilizes solar heat pump technology. Background Technology

[0002] A heat pump air conditioner is a new type of air conditioner that uses the principle of air conditioning to cool in summer to achieve the purpose of heating. Its essence is to eliminate the traditional electric auxiliary heating of air conditioners and use a multi-way valve to switch the flow of refrigerant in the heat exchangers of indoor and outdoor units, so that the functions of indoor and outdoor heat exchangers can be interchanged to achieve the purpose of switching between cooling and heating.

[0003] Traditional heat pump air conditioners suffer from the problem of dry air blowing, which can easily lead to "air conditioner sickness." Furthermore, the heat output is not always evenly distributed during heating. Because existing heat pump air conditioners are susceptible to vibration due to ambient temperature differences, this vibration can affect the stable operation of the refrigerant. With prolonged vibration, the heat exchanger connections may become loose and leak, leading to refrigerant leakage and reduced cooling and heating efficiency. This negatively impacts the normal operation of the heat pump air conditioner and also reduces its heat exchange efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose a household air conditioning system and air conditioning heat pump unit that utilizes solar heat pump technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A household air conditioning system and air conditioning heat pump unit utilizing solar heat pump technology includes a circulating host and a photovoltaic module. The photovoltaic module works in conjunction with a working fluid flowing internally and a photovoltaic panel. The electricity generated by the photovoltaic module is used for the compressor inside the circulating host. Both the circulating host and the photovoltaic module are remotely and locally controlled by a controller. The refrigerant working fluid in the heat exchanger of the circulating host is connected to the evaporator of the indoor air conditioning unit through copper pipes. Unlike traditional air conditioning outdoor units, the circulating host has a water tank on the outer wall of the heat exchanger, which is filled with superconducting heat transfer fluid. When the heat exchanger of the circulating host releases heat to the outside, this heat can heat the low-temperature superconducting heat transfer fluid in the water tank. The heated, higher-temperature superconducting heat transfer fluid is pumped to a buffer water tank by a circulating pump. The circulation outlet of the buffer water tank is connected to the underfloor heating pipe and the fan coil unit, respectively.

[0006] Preferably, a filter is installed in the pipeline between the circulating pump and the buffer water tank, a floor heating circulating pump and a temperature control switch are installed between the circulation outlet of the buffer water tank and the floor heating pipe, a fan coil circulating pump is installed between the circulation outlet of the buffer water tank and the fan coil unit, and an exhaust valve is installed on the top of the buffer water tank.

[0007] Preferably, the circulation inlet of the buffer water tank is connected to the underfloor heating pipe and the fan coil unit respectively, an underfloor heating manifold is provided between the circulation inlet of the buffer water tank and the underfloor heating pipe, and a cooling manifold and a solenoid valve are provided between the circulation inlet of the buffer water tank and the fan coil unit.

[0008] Preferably, a compressor is fixedly installed inside the circulating host, and a fixed annular water tank is set inside the circulating host outside the compressor. A heat exchanger is set inside the water tank. The two inlets and outlets of the heat exchanger extend through the side wall of the water tank respectively. The two inlets and outlets of the compressor are connected to the two inlets and outlets of the heat exchanger through a four-way valve. An annular mounting groove communicating with the inside of the water tank is opened on the inner ring of the top of the water tank. An annular cylinder is rotatably installed on the inner wall of the water tank through the mounting groove. A toothed groove is opened on the top side wall of the annular cylinder. A stabilizing mechanism including a sliding column and a fixed plate is set on the side wall of the annular cylinder. The outer wall of the annular cylinder is rotatably connected to four sets of evenly distributed rotating blocks. Each set of rotating blocks is rotatably connected to a sliding column at its end. The top and bottom inner walls of the water tank are symmetrically provided with four sets of sliding grooves. The top and bottom ends of each sliding column are slidably connected to each set of sliding grooves. Each sliding column is fixedly connected to three evenly distributed fixed plates. Each fixed plate has four movable grooves on its side wall. A first rotating rod is rotatably connected in the movable groove. A first rotating plate is fixedly connected to the side wall of the first rotating rod. A second rotating plate is rotatably connected to the end of the first rotating plate. A second rotating rod is fixedly connected to the end of the second rotating plate. The four second rotating rods on the outside of each fixed plate are rotatably connected to the side wall of the movable plate near the fixed plate.

[0009] Preferably, the heat exchanger has a fixed inlet at the top and an outlet at the bottom, and a four-way valve connected in parallel with both the inlet and outlet.

[0010] Preferably, the water tank outlet at the top of the water tank and the water tank inlet at the bottom of the water tank are connected to an external buffer water tank, and the distance between the outer wall of the heat exchanger outer ring and the inner wall of the water tank outer ring is less than the distance between the outer wall of the heat exchanger inner ring and the inner wall of the water tank inner ring.

[0011] Preferably, annular sealing rings are provided on both sides of the mounting groove, and the two sealing rings abut against the side walls of the annular cylinder respectively.

[0012] Preferably, a motor is fixedly installed at the top of the water tank, and a drive gear that meshes with a tooth groove is fixedly connected to the output end of the motor.

[0013] Preferably, the movable plate has a mating groove on the side wall away from the annular cylinder, the mating groove being adapted to the shape of the heat exchanger pipe, and a rotating cylinder is rotatably connected to the middle of the first rotating rod and the second rotating rod, with a gas spring fixedly connected between every two adjacent rotating cylinders.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention improves the power generation efficiency of photovoltaic cells by incorporating a hybrid thermal photovoltaic module into an air conditioning system. It can efficiently utilize low-grade energy for continuous operation and adapt to low-temperature environments, achieving clean electricity use and reducing electricity costs. The circulating unit is structurally similar to a traditional air conditioner outdoor unit, compressing the refrigerant through a compressor. The refrigerant then evaporates and absorbs heat in the evaporator of the indoor unit, achieving indoor cooling. The indoor unit's fan ventilates the room and continuously blows cool air from around the evaporator into the room, thus regulating the indoor air temperature. Unlike traditional air conditioner outdoor units, the circulating unit eliminates electric auxiliary heating and instead uses a four-way valve to connect the compressor and heat exchanger in parallel. Switching the four-way valve changes the flow direction of the refrigerant within the heat exchanger, thereby improving the cooling and heating effects of a traditional air conditioner. By switching to a heat pump, the system achieves heating without electric auxiliary heating, improving product efficiency and safety. A water tank outside the heat exchanger collects the heat released from the heat exchanger, allowing excess heat that would otherwise be released into the air to be used to heat the superconducting thermal fluid. The heated superconducting thermal fluid is then pumped to a buffer tank for collection and subsequently delivered to underfloor heating pipes. These pipes heat the room quickly and evenly, effectively reducing dryness and air conditioning sickness compared to traditional air conditioners that directly blow hot air. The higher-temperature superconducting thermal fluid in the buffer tank can also be delivered to fan coil units, where a fan blows the heat into the room, providing a gentler breeze and significantly improving the comfort of using the heat pump air conditioner.

[0015] This invention addresses the issue of vibration in heat exchangers operating under large temperature differences by incorporating a stabilizing mechanism. Four sets of movable plates reinforce the heat exchanger's perimeter, effectively reducing vibration and ensuring stable refrigerant flow. This guarantees efficient heat exchange and reduces loosening at various interfaces, ensuring a tight seal and preventing refrigerant leakage. Furthermore, the movable plates, when in contact with the heat exchanger's outer wall, increase the heat exchange area between the heat exchanger and the superconducting heat transfer fluid in the water tank. This larger area accelerates heat exchange when there is a significant temperature difference between indoors and outdoors, improving efficiency and allowing for faster and more effective temperature regulation. Compared to traditional air conditioners, this invention features faster start-up and lower energy consumption. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall process of a household air conditioning system using solar heat pump technology proposed in this invention; Figure 2 This is a schematic diagram of the circulating host structure of a heat pump unit for a household air conditioner using solar heat pump technology, as proposed in this invention. Figure 3 This is a schematic diagram of the four-way valve structure of a heat pump unit for a household air conditioner using solar heat pump technology, as proposed in this invention. Figure 4 This is a schematic diagram of the water tank structure of a heat pump unit for a household air conditioner using solar heat pump technology, as proposed in this invention. Figure 5 This invention proposes a heat pump unit for a household air conditioner that utilizes solar heat pump technology. Figure 4 Enlarged view of the structure of region A in the middle; Figure 6 This is a schematic diagram of the internal structure of the water tank of a heat pump unit for a household air conditioner using solar heat pump technology, as proposed in this invention. Figure 7 This is a schematic diagram of the sealing ring structure of a heat pump unit for a household air conditioner using solar heat pump technology, as proposed in this invention. Figure 8 This invention proposes a heat pump unit for a household air conditioner that utilizes solar heat pump technology. Figure 7 Enlarged view of the structure of region B in the middle; Figure 9 This is a schematic diagram of the stable mechanism structure of a heat pump unit for a household air conditioner using solar heat pump technology proposed in this invention. Figure 10 This is a top view of the fixed plate and movable plate of a heat pump unit for a household air conditioner using solar heat pump technology, as proposed in this invention, in both closed and open states. Figure 11 This is an exploded view of the fixed plate and movable plate structure of a heat pump unit for a household air conditioner using solar heat pump technology, as proposed in this invention. Figure 12 This is a schematic diagram of the gas spring structure in the unfolded state of the fixed plate and movable plate of a heat pump unit for a household air conditioner using solar heat pump technology, as proposed in this invention. Figure 13 This is a schematic diagram of the gas spring structure of a heat pump unit for a household air conditioner using solar heat pump technology in the closed state of the fixed plate and movable plate, as proposed in this invention.

[0017] In the diagram: 1. Circulating main unit; 2. Compressor; 3. Four-way valve; 4. Heat exchanger; 41. Heat exchanger inlet; 42. Heat exchanger outlet; 5. Water tank; 51. Water tank inlet; 52. Water tank outlet; 6. Mounting groove; 61. Sealing ring; 7. Annular cylinder; 8. Gear groove; 9. Motor; 91. Drive gear; 10. Stabilizing mechanism; 11. Slide groove; 12. Sliding column; 13. Rotating block; 14. Fixed plate; 15. Movable groove; 16. First rotating rod; 161. First rotating plate; 17. Movable plate; 171. Mating groove; 18. Second rotating rod; 181. Second rotating plate; 19. Rotating cylinder; 20. Gas spring. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] Reference Figure 1-13A household air conditioning system and air conditioning heat pump unit utilizing solar heat pump technology includes a circulating host 1 and a photovoltaic module. The photovoltaic module works in conjunction with a working fluid flowing inside and a photovoltaic panel. The electricity generated by the photovoltaic module is used for the compressor 2 inside the circulating host 1. Both the circulating host 1 and the photovoltaic module are controlled remotely and locally by a controller. The refrigerant working fluid in the heat exchanger 4 of the circulating host 1 is connected to the evaporator of the indoor air conditioning unit through copper pipes. Unlike traditional air conditioning outdoor units, the circulating host 1 has a water tank 5 installed on the outer wall of the heat exchanger 4. The water tank 5 is filled with superconducting heat transfer fluid. When the heat exchanger 4 of the circulating host 1 releases heat to the outside, this heat can heat the low-temperature superconducting heat transfer fluid in the water tank 5. The heated, higher-temperature superconducting heat transfer fluid is pumped to a buffer water tank by a circulating pump. The circulation outlet of the buffer water tank is connected to the underfloor heating pipe and the fan coil unit, respectively. The hybrid thermal photovoltaic module integrates the collector and evaporator through the flow of working fluid through internal pipes. The collector, combined with the photovoltaic module, absorbs the heat generated during power generation, reducing the backsheet temperature of the photovoltaic module and thus improving the photovoltaic cell's power generation efficiency. It can efficiently utilize low-grade energy for continuous operation and adapt to low-temperature environments, achieving clean electricity use and reducing electricity costs. The circulating unit 1, also known as the air conditioner outdoor unit, is similar in structure to a traditional air conditioner outdoor unit. It compresses the refrigerant working fluid through the compressor 2, which then evaporates and absorbs heat in the evaporator of the indoor unit to cool the room. The indoor unit's fan ventilates the room and continuously blows cool air from around the evaporator into the room, thereby regulating the indoor air temperature. Unlike traditional air conditioner outdoor units, the circulating unit 1 eliminates the electric auxiliary heating and instead uses a four-way valve 3 to connect the compressor 2 and heat exchanger 4 in parallel. Switching the four-way valve 3 changes the heat exchange rate. The flow direction of the refrigerant inside the heat exchanger 4 is adjusted to switch the cooling and heating effects of a traditional air conditioner, achieving a heating function without electric auxiliary heating. This improves product efficiency and safety. Simultaneously, a water tank 5 located outside the heat exchanger 4 collects the temperature released by the heat exchanger 4, allowing excess heat that would otherwise be released into the air to be used to heat the superconducting heat pump fluid. The heated superconducting heat pump fluid is then pumped to a buffer tank for collection and subsequently delivered to the underfloor heating pipes. These pipes heat the room quickly and evenly, effectively reducing dryness and air conditioning sickness compared to the direct blowing of hot air by electric heating in traditional air conditioners. Similarly, the higher-temperature superconducting heat pump fluid in the buffer tank can be delivered to the fan coil unit, where a fan blows heat from the fan coil unit into the room, similar to the cooling method of traditional air conditioners, but with a gentler airflow, greatly improving the comfort of using the heat pump air conditioner.

[0020] As an optimized technical solution of the present invention, a filter is installed in the pipeline between the circulation pump and the buffer water tank. A floor heating circulation pump and a temperature control switch are installed between the circulation outlet of the buffer water tank and the floor heating pipe. A fan coil circulation pump is installed between the circulation outlet of the buffer water tank and the fan coil unit. An exhaust valve is installed on the top of the buffer water tank. The filter can filter out impurities that may exist in the buffer water tank to prevent corrosion of the floor heating pipe. The temperature control switch monitors the space temperature to determine whether heating is needed. If heating is needed, the floor heating circulation pump is started to pump the higher-temperature superconducting heat liquid in the buffer water tank into the floor heating pipe for circulation and heat release. The fan coil circulation pump is started via the air conditioner indoor unit remote control, which can be started at any time according to the user's needs, similar to the use of a traditional air conditioner.

[0021] As an optimized technical solution of the present invention, the circulation inlet of the buffer water tank is connected to both the underfloor heating pipe and the fan coil unit. An underfloor heating manifold is installed between the circulation inlet of the buffer water tank and the underfloor heating pipe, and a cooling manifold and a solenoid valve are installed between the circulation inlet of the buffer water tank and the fan coil unit. The underfloor heating manifold, cooling manifold, and solenoid valve are all commonly used valves in the prior art for distributing flow rate, velocity, and direction. Through the regulation of these valves, the superconducting heat transfer fluid in the underfloor heating pipe and the fan coil unit is distributed for use, thereby achieving precise temperature regulation.

[0022] As a technical optimization of the present invention, a compressor 2 is fixedly installed inside the circulating host 1, and a fixed annular water tank 5 is set inside the circulating host 1 outside the compressor 2. A heat exchanger 4 is set inside the water tank 5. The two inlets and outlets of the heat exchanger 4 pass through the side wall of the water tank 5 respectively. The two inlets and outlets of the compressor 2 are connected to the two inlets and outlets of the heat exchanger 4 through a four-way valve 3. An annular mounting groove 6 connected to the inside of the water tank 5 is opened on the inner ring of the top of the water tank 5. An annular cylinder 7 is rotatably installed on the inner wall of the water tank 5 through the mounting groove 6. A toothed groove 8 is opened on the top side wall of the annular cylinder 7. A stabilizing mechanism 10 including a sliding column 12 and a fixed plate 14 is set on the side wall of the annular cylinder 7. Four sets of evenly distributed rotating blocks 13 are rotatably connected around the outer wall of the annular cylinder 7. A sliding column 12 is rotatably connected to the end of each set of rotating blocks 13. Four sets of sliding grooves 11 are symmetrically opened on the inner walls of the top and bottom of the water tank 5. The top and bottom ends of each sliding column 12 are slidably connected to each set of sliding grooves 11. Three evenly distributed fixed plates 14 are fixedly connected to each sliding column 12. Four movable grooves 15 are opened on the side wall of each fixed plate 14. A first rotating rod 16 is rotatably connected in the movable groove 15. A first rotating plate 161 is fixedly connected to the side wall of the first rotating rod 16. A second rotating plate 181 is rotatably connected to the end of the first rotating plate 161. A second rotating rod 18 is fixedly connected to the end of the second rotating plate 181. The four second rotating rods 18 on the outside of each fixed plate 14 are rotatably connected to the side wall of the movable plate 17 near the fixed plate 14. The water tank 5 is filled with superconducting heat transfer fluid to collect the heat released from the heat exchanger 4. The water tank 5 completely encloses the heat exchanger 4, effectively improving heat collection efficiency and reducing heat loss. The inner wall of the annular cylinder 7 abuts against the inner wall of the water tank 5, preventing the superconducting heat transfer fluid from accumulating between the annular cylinder 7 and the water tank 5 and becoming unusable. The stabilizing mechanism 10 addresses the issue of vibration that can easily occur when the heat exchanger 4 operates under large temperature differences. When the temperature difference between the internal and external environments is large, the circulation host 1 is started, and the compressor 2 pumps the refrigerant into the heat exchanger 4. Rotating the annular cylinder 7 drives the four sets of rotating blocks 13 to rotate, causing the four sliding columns 12 to slide along the slide groove 11 to one end away from the annular cylinder 7. Limiting blocks are installed at the top and bottom of the sliding columns 12, ensuring that the sliding columns 12 can only slide back and forth along the slide groove 11 without changing their angle. At this time, each set of rotating blocks 13... Perpendicular to the fixed plate 14, the fixed plate 14 pushes each movable plate 17 to abut against the inner ring of the heat exchanger 4. The four sets of movable plates 17 support and reinforce the heat exchanger 4, effectively reducing the vibration of the heat exchanger 4 and allowing the refrigerant inside the heat exchanger 4 to flow stably, thus ensuring the heat exchange effect. It can also reduce the loosening of the various interfaces of the heat exchanger 4, ensure sealing, and prevent refrigerant leakage, which is conducive to improving the cooling and heating effect. When each movable plate 17 abuts against the outer wall of the heat exchanger 4, it can increase the heat exchange area between the heat exchanger 4 and the superconducting heat transfer fluid in the water tank 5. When the temperature difference between indoors and outdoors is large, the larger heat exchange area can accelerate the heat exchange speed, thereby improving the heat exchange efficiency and allowing the indoor temperature to be effectively regulated more quickly. Compared with traditional air conditioners, it has the characteristics of faster start-up and lower energy consumption.

[0023] As a technical optimization of the present invention, a heat exchanger inlet 41 is fixedly connected to the top inlet and outlet of the heat exchanger 4, and a heat exchanger outlet 42 is fixedly connected to the bottom inlet and outlet of the heat exchanger 4. A four-way valve 3 is connected in parallel with the heat exchanger inlet 41 and the heat exchanger outlet 42. The four-way valve 3 is used to switch the flow direction of the refrigerant in the heat exchanger 4 to realize the switching of cooling and heating functions.

[0024] As a technical optimization of the present invention, the water tank outlet 52 at the top of the water tank 5 and the water tank inlet 51 at the bottom of the water tank 5 are connected to an external buffer water tank. The distance between the outer wall of the outer ring of the heat exchanger 4 and the inner wall of the outer ring of the water tank 5 is smaller than the distance between the outer wall of the inner ring of the heat exchanger 4 and the inner wall of the inner ring of the water tank 5. The water tank 5 is connected to the buffer water tank through the water tank outlet 52 and the water tank inlet 51, and is circulated by a circulation pump to pump the heated superconducting heat liquid into the buffer water tank. The large distance between the inner ring of the heat exchanger 4 and the inner ring of the water tank 5 facilitates the operation of the stabilizing mechanism 10 without affecting the installation of the heat exchanger 4.

[0025] As a technical optimization of the present invention, annular sealing rings 61 are provided on both sides of the mounting groove 6, and the two sealing rings 61 abut against the side walls of the annular cylinder 7 respectively. The two sealing rings 61 form a seal between the water tank 5 and the annular cylinder 7 to prevent leakage of superconducting heat fluid when the annular cylinder 7 is in operation.

[0026] As a technical optimization of the present invention, a motor 9 is fixedly installed at the top of the water tank 5, and a drive gear 91 that meshes with the toothed groove 8 is fixedly connected to the output end of the motor 9. By controlling the rotation of the motor 9, the drive gear 91 is driven to rotate, which in turn drives the toothed groove 8 and the annular cylinder 7 to rotate, which in turn drives the four sets of rotating blocks 13 to rotate and drives the four sliding columns 12 to slide along the slide groove 11 to the end away from the annular cylinder 7, so that each set of rotating blocks 13 is perpendicular to the fixed plate 14. During the movement of the fixed plate 14, the movable plate 17 first abuts against the outer wall of the heat exchanger 4, and the first rotating rod 16, the first rotating plate 161, the second rotating rod 18, and the second rotating plate 181 rotate and move closer to each other until the sliding column 12 moves to the end of the slide groove 11. The motor 9 can drive the drive gear 91 to reciprocate along both ends of the toothed groove 8, which facilitates the reciprocating action of the stabilizing mechanism 10.

[0027] As a technical optimization of the present invention, a mating groove 171 is provided on the side wall of the movable plate 17 away from the annular cylinder 7. The mating groove 171 is adapted to the pipe shape of the heat exchanger 4. A rotating cylinder 19 is rotatably connected to the middle of the first rotating rod 16 and the second rotating rod 18. A gas spring 20 is fixedly connected between every two adjacent rotating cylinders 19. The mating groove 171 is used to mate and abut against the side wall of the heat exchanger 4, so that the movable plate 17 is in full contact with the heat exchanger 4, improving the fixing effect of the stabilizing mechanism 10 on the heat exchanger 4. The two rotating cylinders 19 can rotate synchronously in opposite directions during the rotation of the first rotating rod 16 and the second rotating rod 18 to keep the direction of the gas spring 20 unchanged. The gas spring 20 itself can be compressed when the fixed plate 14 approaches the heat exchanger 4 and the movable plate 17 first abuts against the heat exchanger 4, so that the contact between the movable plate 17 and the heat exchanger 4 becomes a soft connection, preventing the movable plate 17 from being compressed. The pressure of the 7-pressure heat exchanger 4 can cause adverse problems such as refrigerant leakage. When the stabilizing mechanism 10 resets, that is, when the sliding column 12 moves back to the slide groove 11 and approaches one end of the compressor 2, the gas spring 20 loses its force and resets, pushing the movable plate 17 away from the fixed plate 14. The stroke of the gas spring 20 is greater than the maximum distance between the fixed plate 14 and the movable plate 17, so that when the stabilizing mechanism 10 reciprocates, the gas spring 20 can always play the role of soft connection, and the movable plate 17 will not be impacted after it comes into contact with the heat exchanger 4 due to insufficient stroke.

[0028] In use, the photovoltaic module efficiently utilizes low-grade energy to generate electricity, which powers the compressor 2. The compressor 2 compresses the refrigerant, which then evaporates and absorbs heat in the evaporator of the indoor unit of the air conditioner to cool the room. The fan of the indoor unit ventilates the room and continuously blows the cool air around the evaporator into the room, thereby regulating the indoor air temperature. The four-way valve 3 connects the compressor 2 and the heat exchanger 4 in parallel. By switching the four-way valve 3, the flow direction of the refrigerant in the heat exchanger 4 is changed, thus reducing the traditional... The air conditioner switches between cooling and heating functions. Meanwhile, the water tank 5 installed outside the heat exchanger 4 can collect the temperature released by the heat exchanger 4, so that the excess heat that the heat exchanger 4 would otherwise release into the air is used to heat the superconducting heat transfer fluid. The heated superconducting heat transfer fluid is pumped to a buffer water tank for collection and then transported to the underfloor heating pipes. The underfloor heating pipes laid on the ground heat the room. Similarly, the higher temperature superconducting heat transfer fluid in the buffer water tank can also be transported to the fan coil unit, and the heat from the fan coil unit is blown into the room by the fan.

[0029] The water tank 5 is filled with superconducting heat transfer fluid to collect the heat released from the heat exchanger 4 to the outside. When the temperature difference between the internal and external environments is large, the circulating host 1 is started. When the compressor 2 pumps the refrigerant into the heat exchanger 4, the motor 9 is started. The rotation of the motor 9 drives the drive gear 91 to rotate, which in turn drives the toothed groove 8 and the annular cylinder 7 to rotate. The two sealing rings 61 form a seal between the water tank 5 and the annular cylinder 7, which in turn drives the four sets of rotating blocks 13 to rotate and drives the four sliding columns 12 to slide along the sliding groove 11 to the end away from the annular cylinder 7. During the movement of the fixed plate 14, the movable plate 17 and the mating groove 171 first abut against the outer wall of the heat exchanger 4. The first rotating rod 16 and the first rotating plate 1 61 and the second rotating rod 18 and the second rotating plate 181 rotate and move closer to each other. The two rotating cylinders 19 can rotate synchronously in opposite directions during the rotation of the first rotating rod 16 and the second rotating rod 18 to keep the direction of the gas spring 20 unchanged. The gas spring 20 itself can be compressed when the fixed plate 14 approaches the heat exchanger 4 and the movable plate 17 first abuts against the heat exchanger 4, so that the contact between the movable plate 17 and the heat exchanger 4 becomes a soft connection until each set of rotating blocks 13 is perpendicular to the fixed plate 14 and then the motor 9 stops rotating. At this time, the four sets of movable plates 17 support and reinforce the heat exchanger 4 around the perimeter, and can also increase the heat exchange area between the heat exchanger 4 and the superconducting heat liquid in the water tank 5.

[0030] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0031] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A household air conditioning system utilizing solar heat pump technology, comprising a circulating unit (1) and photovoltaic modules, characterized in that: The photovoltaic module is used in conjunction with the photovoltaic panel through the internally flowing working fluid. The electrical energy generated by the photovoltaic module is used for the compressor (2) inside the circulating host (1). Both the circulating host (1) and the photovoltaic module are remotely and locally controlled by the controller. The refrigerant working fluid in the heat exchanger (4) of the circulating host (1) is connected to the evaporator of the air conditioner indoor unit through copper pipes. The circulating host (1) is different from the traditional air conditioner outdoor unit in that a water tank (5) is set on the outer wall of the heat exchanger (4). The water tank (5) is filled with superconducting heat liquid. When the heat exchanger (4) of the circulating host (1) releases heat to the outside, this heat can heat the low temperature superconducting heat liquid in the water tank (5). The heated higher temperature superconducting heat liquid is pumped to the buffer water tank by the circulating pump. The circulation outlet of the buffer water tank is connected to the underfloor heating pipe and the fan coil unit respectively.

2. A household air conditioning system using solar heat pump technology according to claim 1, characterized in that: A filter is installed in the pipeline between the circulating pump and the buffer water tank. A floor heating circulating pump and a temperature control switch are installed between the circulation outlet of the buffer water tank and the floor heating pipe. A fan coil circulating pump is installed between the circulation outlet of the buffer water tank and the fan coil unit. An air vent valve is installed on the top of the buffer water tank.

3. A household air conditioning system using solar heat pump technology according to claim 1, characterized in that: The circulation inlet of the buffer water tank is connected to the underfloor heating pipe and the fan coil unit respectively. An underfloor heating manifold is installed between the circulation inlet of the buffer water tank and the underfloor heating pipe. A cooling manifold and a solenoid valve are installed between the circulation inlet of the buffer water tank and the fan coil unit.

4. A heat pump unit for a household air conditioner using solar heat pump technology according to claim 1, characterized in that: The circulating host (1) is fixedly installed with a compressor (2). The circulating host (1) outside the compressor (2) is fixed with an annular water tank (5). The water tank (5) is equipped with a heat exchanger (4). The two inlets and outlets of the heat exchanger (4) pass through the side wall of the water tank (5). The two inlets and outlets of the compressor (2) are connected to the two inlets and outlets of the heat exchanger (4) through a four-way valve (3). The inner ring of the top of the water tank (5) is provided with an annular mounting groove (6) that is connected to the inside of the water tank (5). The inner wall of the water tank (5) is rotatably installed with an annular cylinder (7) through the mounting groove (6). The top side wall of the annular cylinder (7) is provided with a toothed groove (8). The side wall of the annular cylinder (7) is provided with a stabilizing mechanism (10) including a sliding column (12) and a fixed plate (14). The outer wall of the annular cylinder (7) is rotatably connected to four sets of evenly distributed rotating blocks (13). Each set of rotating blocks (13) is rotatably connected to a sliding column (12) at its end. The inner walls of the top and bottom of the water tank (5) are symmetrically provided with four sets of sliding grooves (11). The top and bottom ends of each sliding column (12) are slidably connected to each set of sliding grooves (11). Each sliding column (12) is fixedly connected to three evenly distributed fixed plates (14). Each fixed plate (14) has four movable grooves (15) on its side wall. A first rotating rod (16) is rotatably connected in the movable groove (15). A first rotating plate (161) is fixedly connected to the side wall of the first rotating rod (16). A second rotating plate (181) is rotatably connected to the end of the first rotating plate (161). A second rotating rod (18) is fixedly connected to the end of the second rotating plate (181). The four second rotating rods (18) on the outside of each fixed plate (14) are rotatably connected to the side wall of the movable plate (17) near the fixed plate (14).

5. A heat pump unit for a household air conditioner using solar heat pump technology according to claim 4, characterized in that: The heat exchanger (4) has a fixed inlet (41) at the top and an outlet (42) at the bottom. The four-way valve (3) is connected in parallel with the heat exchanger inlet (41) and the heat exchanger outlet (42).

6. A heat pump unit for a household air conditioner using solar heat pump technology according to claim 4, characterized in that: The water tank outlet (52) at the top of the water tank (5) and the water tank inlet (51) at the bottom of the water tank (5) are connected to the external buffer water tank. The distance between the outer wall of the heat exchanger (4) and the inner wall of the outer ring of the water tank (5) is less than the distance between the outer wall of the inner ring of the heat exchanger (4) and the inner wall of the inner ring of the water tank (5).

7. A heat pump unit for a household air conditioner using solar heat pump technology according to claim 4, characterized in that: The mounting groove (6) is provided with annular sealing rings (61) on both sides, and the two sealing rings (61) abut against the two side walls of the annular cylinder (7) respectively.

8. A heat pump unit for a household air conditioner using solar heat pump technology according to claim 4, characterized in that: A motor (9) is fixedly installed on the top of the water tank (5), and a drive gear (91) that meshes with the tooth groove (8) is fixedly connected to the output end of the motor (9).

9. A heat pump unit for a household air conditioner using solar heat pump technology according to claim 4, characterized in that: The movable plate (17) has a mating groove (171) on the side wall away from the annular cylinder (7). The mating groove (171) is adapted to the pipe shape of the heat exchanger (4). The first rotating rod (16) and the second rotating rod (18) are rotatably connected to a rotating cylinder (19). A gas spring (20) is fixedly connected between every two adjacent rotating cylinders (19).

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