Solar intelligent dual-power-supply high-cold-region variable-frequency air source heat pump unit

Abstract

The invention belongs to the technical field of air source heat pumps, and particularly relates to a solar intelligent dual-power-supply high-cold-region variable-frequency air source heat pump unit which comprises a mains supply interface. The commercial power interface is connected with a rectifier; the photovoltaic power generation module is used for converting solar energy into direct current; the variable-frequency air source heat pump comprises a compressor, an evaporator, a condenser and an expansion valve; the data monitoring system monitors the solar power generation amount, the heat pump power consumption, the outdoor temperature and the indoor temperature in real time; and the power control system is used for managing the power input proportion of solar energy and mains supply to the heat pump. The operation mode of the heat pump system can be intelligently adjusted, zero mains supply input operation can be achieved when sunlight is sufficient, mains supply can be automatically and intelligently compensated when illuminance changes, normal operation of the heat pump system is guaranteed, and stability, reliability and energy saving performance of the heat pump system are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of air source heat pumps, and in particular to a solar intelligent dual-power high-cold variable-frequency air source heat pump unit. Background Art

[0002] Air source heat pump is a device that uses air as a heat source, mainly used for heating, cooling and hot water supply. It transfers the heat in the air into the building or discharges it to the external environment by circulating the refrigerant, with high energy efficiency and renewable energy utilization. The working principle of air source heat pump is based on the refrigeration cycle, which mainly includes the following steps: heat absorption-refrigerant evaporation-compression-heat release-throttling.

[0003] At present, although the air source heat pump in the existing technology has achieved solar power generation drive, the solar energy drive mode is unstable, especially in high-altitude cold areas with low radiation density and short radiation time, making it difficult to provide continuous and effective power generation, resulting in low driving efficiency for the heat pump and low practicality in high-altitude cold areas.

[0004] To this end, the present invention provides a solar intelligent dual-power supply high-cold variable-frequency air source heat pump unit. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a solar intelligent dual-power high-cold variable-frequency air source heat pump unit described in the present invention comprises:

[0007] A mains power interface, the mains power interface is used to access the alternating current of the municipal power; the mains power interface is connected to a rectifier; the rectifier is used to convert the municipal alternating current into direct current;

[0008] A photovoltaic power generation module, which is used to convert solar energy into direct current electricity;

[0009] A variable frequency air source heat pump, the variable frequency air source heat pump comprising a compressor, an evaporator, a condenser and an expansion valve;

[0010] A data monitoring system, wherein the data monitoring system monitors solar power generation, heat pump power consumption, outdoor temperature and indoor temperature in real time;

[0011] Power control system: The power control system manages the power input ratio of solar energy and city electricity to the heat pump by comparing the solar power generation and the rated power consumption of the heat pump.

[0012] Preferably, the evaporator includes a box body; a base is fixedly connected to the lower side of the box body; a refrigerant pipe and heat exchange fins are arranged inside the box body; a grille is arranged inside the air inlet of the box body; the interior of the grille is designed to be a hollow structure; a fan is arranged inside the box body at a position corresponding to the air inlet; a pair of mounting blocks are fixedly connected to the surface of the base; a vacuum heat collecting tube is fixedly connected between the mounting blocks, and water is stored in the vacuum heat collecting tube; the vacuum heat collecting tube and the grille are connected through a conveying pipe.

[0013] Preferably, the height of the vacuum heat collecting tube is lower than the bottom of the grid.

[0014] Preferably, a group of heat-conducting wires are evenly distributed inside the grille; the heat-conducting wires penetrate the hollow structure of the grille.

[0015] Preferably, a movable ring is provided on the outer side of the vacuum heat collecting tube; a flexible ring is fixedly connected to the inner side of the movable ring, and the flexible ring fits the vacuum heat collecting tube; a spring is fixedly connected between one side of the movable ring and the mounting block, and a pull rope is fixedly connected to the other side of the movable ring; the pull rope is connected to a driving assembly.

[0016] Preferably, the driving assembly includes a limit rod fixedly connected to the inside of the box; the limit rod is located below the rotating shaft of the fan; a slider is slidably connected to the surface of the limit rod, and the slider is fixedly connected to the pull rope; a driven plate is fixedly connected to the upper side of the slider; and an active plate is fixedly connected to the surface of the rotating shaft.

[0017] Preferably, a group of elastic parts are evenly distributed between the side of the grille and the air inlet; a group of elastic convex strips are evenly distributed on the bottom of one side of the grille close to the limiting rod; a paddle is fixedly connected to the surface of the slider, and the paddle is inserted between the elastic convex strips.

[0018] Preferably, a drain pipe is provided at the bottom of the box body; a water storage tank is provided inside the top of the mounting block, and an opening is provided on the side of the water storage tank close to the movable ring; the lower end of the drain pipe is connected to the water storage tank; a water storage block is fixedly connected to the inside of the water storage tank; the water storage block and the flexible ring are both made of water-absorbing material.

[0019] Preferably, a pressure block is provided on the side of the water storage block away from the movable ring, and the pressure block is slidably connected to the inside of the water storage tank; a second spring is fixedly connected between the pressure block and the water storage tank; and the pressure block and the movable ring are magnetically attracted when they are close to each other.

[0020] Preferably, a heating groove is provided at the bottom of the water storage tank; a heat conducting plate is fixedly connected to the top of the heating groove; and the heating groove is connected to the vacuum heat collecting tube via a guide hole.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. The solar intelligent dual-power high-cold variable-frequency air source heat pump unit described in the present invention can intelligently adjust the operating mode of the heat pump system (solar energy priority, AC power auxiliary), and can directly use solar photovoltaic panels to generate electricity to drive the entire heat pump system. It can achieve 100% energy saving when the sun is sufficient and achieve 0 AC power input operation. When the illumination changes, the AC power can automatically and intelligently compensate to ensure the normal operation of the heat pump system, truly realizing dual power supply of AC power and solar energy, and ensuring the stability, reliability and energy saving of the heat pump system.

[0023] 2. The solar intelligent dual-power high-cold variable-frequency air source heat pump unit described in the present invention collects solar heat using vacuum collector tubes to heat the water inside and form water vapor, which then enters the hollow structure of the grille through the delivery pipe, thereby heating the grille. When the fan rotates, it blows the outside air into the box through the air inlet. The airflow is heated by the grille when passing through the air inlet, thereby increasing the airflow temperature. On the one hand, it melts the frost on the surface of the heat exchange fins and reduces the adhesion of the heat exchange fins. On the other hand, when the air exchanges heat between the heat exchange fins, the refrigerant pipe and the refrigerant, the hot air flow can increase the temperature difference between the air heat source and the refrigerant, thereby improving the evaporation efficiency of the refrigerant. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a system block diagram of the heat pump unit in the present invention;

[0026] Figure 2 It is a structural schematic diagram of the evaporator in the present invention;

[0027] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0028] Figure 4 It is a schematic diagram of the structure of the grille and the fan in the present invention;

[0029] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0030] Figure 6 is a disassembled schematic diagram of the grille and the fan in the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the vacuum heat collecting tube in the present invention;

[0032] Figure 8 is a front view of the evaporator of the present invention;

[0033] Fig. 9 yes Figure 8A partial enlarged view of point C in the middle.

[0034] In the figure: box body 1, base 2, grille 3, fan 4, mounting block 5, vacuum heat collecting tube 6, conveying pipe 7, heat conducting wire 8, movable ring 9, flexible ring 10, spring 1 11, pull rope 12, limit rod 13, slider 14, driven plate 15, active plate 16, elastic member 17, elastic convex strip 18, paddle 19, drain pipe 20, water storage tank 21, water storage block 22, pressing block 23, spring 2 24, heating tank 25, heat conducting plate 26, guide hole 27, air inlet 28, rotating shaft 29. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] like Figure 1 As shown, the solar intelligent dual-power high-cold variable-frequency air source heat pump unit described in the present invention comprises:

[0037] A mains power interface, the mains power interface is used to access the alternating current of the municipal power; the mains power interface is connected to a rectifier; the rectifier is used to convert the municipal alternating current into direct current;

[0038] A photovoltaic power generation module, which is used to convert solar energy into direct current electricity;

[0039] A variable frequency air source heat pump, wherein the variable frequency air source heat pump comprises a compressor, an evaporator, a condenser and an expansion valve, and all electrical equipment of the variable frequency air source heat pump is DC driven;

[0040] A data monitoring system, wherein the data monitoring system monitors solar power generation, heat pump power consumption, outdoor temperature and indoor temperature in real time;

[0041] Power control system: The power control system manages the power input ratio of solar energy and city electricity to the heat pump by comparing the solar power generation and the rated power consumption of the heat pump, thereby improving the overall operating efficiency of the system.

[0042] Although the air source heat pump in the existing technology has achieved solar power generation drive, the solar power drive mode is unstable, especially in high-altitude cold areas with low radiation density and short radiation time, making it difficult to provide continuous and effective power generation, resulting in low driving efficiency for the heat pump and low practicality in high-altitude cold areas.

[0043] The present invention designs an intelligent dual-power heat pump unit and uses a power control system to compare the actual power generation of the photovoltaic power generation module with the rated power consumption of the heat pump: if the actual power generation is greater than or equal to the rated power consumption of the heat pump, it means that the photovoltaic power generation is sufficient to drive the heat pump to work normally, and the power control system controls the power input of the heat pump to be provided entirely by the photovoltaic power generation, and the mains power is not involved; if the actual power generation is less than the rated power consumption of the heat pump, it means that the photovoltaic power generation is insufficient to drive the heat pump to work normally, and the power control system controls the power input of the heat pump to be provided jointly by the photovoltaic power generation and the mains power, and obtains the input ratio of the photovoltaic power generation and the mains power through calculation.

[0044] The present invention can intelligently adjust the operation mode of the heat pump system (solar energy priority, AC power auxiliary), and can directly use solar photovoltaic panels to generate electricity to drive the entire heat pump system. It can achieve 100% energy saving when the sun is sufficient and realize operation with 0 AC power input. When the illumination changes, the AC power can automatically and intelligently compensate to ensure the normal operation of the heat pump system. It truly realizes dual power supply of AC power and solar energy, and ensures the stability, reliability and energy saving of the heat pump system.

[0045] like Figures 2 to 9 As shown, the evaporator includes a box body 1; a base 2 is fixedly connected to the lower side of the box body 1; a refrigerant pipeline and heat exchange fins are arranged inside the box body 1 (this is the prior art and is not shown in the figure); a grille 3 is arranged inside the air inlet 28 of the box body 1; the interior of the grille 3 is designed to be a hollow structure; a fan 4 is arranged at a position corresponding to the air inlet 28 inside the box body 1; a pair of mounting blocks 5 are fixedly connected to the surface of the base 2; a vacuum heat collecting tube 6 is fixedly connected between the mounting blocks 5, and water is stored in the vacuum heat collecting tube 6; the vacuum heat collecting tube 6 is connected to the grille 3 through a conveying pipe 7. Due to the low temperature in high-cold areas, frost is easily generated on the surface of the heat exchange fins of the evaporator placed outdoors, which will seriously affect the heat exchange efficiency of the heat exchange fins. The present invention uses a vacuum collector tube 6 to collect solar heat, heat the water inside it and form water vapor, and then the water vapor enters the hollow structure of the grille 3 through the conveying pipe 7, thereby heating the grille 3. Then, when the fan 4 rotates, it blows the outside air into the box body 1 through the air inlet 28. When the air passes through the air inlet 28, it is heated by the grille 3 to increase the air flow temperature. On the one hand, the frost on the surface of the heat exchange fins is melted to reduce the adhesion of the heat exchange fins. On the other hand, when the air exchanges heat between the heat exchange fins, the refrigerant pipeline and the refrigerant, the hot air flow can increase the temperature difference between the air heat source and the refrigerant, thereby improving the evaporation efficiency of the refrigerant.

[0046] The height of the vacuum heat collecting tube 6 is lower than the bottom of the grid 3. When the water vapor heats the grid 3, the condensed water formed inside the grid 3 flows back to the vacuum heat collecting tube 6 through the delivery pipe 7 and is reheated and vaporized by the vacuum heating tube, thus realizing the cyclic conversion between water vapor and water.

[0047] A group of heat-conducting wires 8 are evenly distributed inside the grille 3; the heat-conducting wires 8 penetrate the hollow structure of the grille 3. By providing the heat-conducting wires 8, the heat-conducting wires 8 are partially in contact with the water vapor inside the grille 3 and are heated, and then the heat is conducted to the outside of the grille 3 along the heat-conducting wires 8, which can improve the heating density and heating efficiency of the grille 3 on the airflow.

[0048] As a preferred embodiment of the present invention, a movable ring 9 is sleeved on the outer side of the vacuum heat collecting tube 6; a flexible ring 10 is fixedly connected to the inner side of the movable ring 9, and the flexible ring 10 is in contact with the vacuum heat collecting tube 6; a spring 11 is fixedly connected between one side of the movable ring 9 and the mounting block 5, and a pull rope 12 is fixedly connected to the other side of the movable ring 9; the pull rope 12 is connected to a driving component;

[0049] The driving assembly includes a limit rod 13 fixedly connected to the inside of the box 1; the limit rod 13 is located below the rotating shaft 29 of the fan 4; a slider 14 is slidably connected to the surface of the limit rod 13, and the slider 14 is fixedly connected to the pull rope 12; a driven plate 15 is fixedly connected to the upper side of the slider 14; and an active plate 16 is fixedly connected to the surface of the rotating shaft 29.

[0050] In order to reduce the resistance and wear of the pull rope 12, a guide wheel can be set at the bend of the pull rope 12, and the pull rope 12 can be passed around the surface of the guide wheel. During the movement of the pull rope 12, the guide wheel can be driven to rotate to improve its movement stability.

[0051] When the fan 4 rotates, the shaft 29 drives the active plate 16 to rotate. When the active plate 16 rotates to the bottom, the slider 14 is driven to slide on the surface of the limit rod 13 through the driven plate 15, and then the slider 14 drives the movable ring 9 to move on the surface of the vacuum collector tube 6 through the pull rope 12, and stretches the spring 11. When the active plate 16 rotates to the top, it is separated from the driven plate 15, and then the spring 11 pulls the movable ring 9, the pull rope 12 and the slider 14 to reset. The movable ring 9 reciprocates on the surface of the vacuum collector tube 6, and the flexible ring 10 is used to scrape off dust and other dirt adhered to the surface of the vacuum collector tube 6 to prevent it from blocking the vacuum collector tube 6 and reducing the heat collection efficiency.

[0052] As a preferred embodiment of the present invention, a group of elastic members 17 are evenly distributed between the side of the grille 3 and the air inlet 28; a group of elastic ridges 18 are evenly distributed on the bottom of the side of the grille 3 close to the limit rod 13; a paddle 19 is fixedly connected to the surface of the slider 14, and the paddle 19 is inserted between the elastic ridges 18. During the movement of the slider 14, the end of the paddle 19 can slide between the multiple elastic ridges 18 on the surface of the grille 3 and squeeze the elastic ridges 18, thereby moving the grille 3 to continuously vibrate left and right inside the air inlet 28, which on the one hand enhances its disturbing effect on the airflow and improves the heat exchange efficiency between it and the airflow, and on the other hand, it can promote the condensed water inside the grille 3 to flow downward and be collected inside the vacuum collector tube 6 through the conveying pipe 7, thereby improving the collection and reflux efficiency of the condensed water.

[0053] As a preferred embodiment of the present invention, a drain pipe 20 is provided at the bottom of the housing 1; a water storage tank 21 is provided in the top of the mounting block 5, and an opening is provided on the side of the water storage tank 21 close to the movable ring 9; the lower end of the drain pipe 20 is connected to the water storage tank 21; a water storage block 22 is fixedly connected inside the water storage tank 21; the water storage block 22 and the flexible ring 10 are both made of water-absorbing materials, such as sponge, foam, etc. The drain pipe 20 is used to discharge the water formed by the melting of frost inside the housing 1, and the water can enter the water storage tank 21 and be absorbed by the water storage block 22 when it is discharged through the drain pipe 20. When the movable ring 9 moves to the side of the mounting block 5, the flexible ring 10 can contact the water storage block 22 and absorb water from its surface, so that the flexible ring 10 is in a soaked state, and then when it scrapes the surface of the vacuum collector tube 6, it can improve the efficiency of wiping dirt and reduce the residue of stubborn dirt.

[0054] As a preferred embodiment of the present invention, a pressure block 23 is provided on the side of the water storage block 22 away from the movable ring 9, and the pressure block 23 is slidably connected to the inside of the water storage tank 21; a spring 24 is fixedly connected between the pressure block 23 and the water storage tank 21; the pressure block 23 and the movable ring 9 are magnetically attracted to each other when they are close to each other. When the movable ring 9 moves to the side of the mounting block 5, the movable ring 9 and the pressure block 23 attract each other, driving the pressure block 23 to slide inside the water storage tank 21, and the pressure block 23 is used to apply pressure to the water storage block 22, so as to squeeze out the water inside the water storage block 22, accelerate the process of water flowing out through the surface of the water storage block 22 and being absorbed by the flexible ring 10, improve the water replenishment efficiency of the flexible ring 10, and ensure its efficient wiping performance.

[0055] As a preferred embodiment of the present invention, a heating groove 25 is provided at the bottom of the water storage tank 21; a heat conducting sheet 26 is fixedly connected to the top of the heating groove 25; and the heating groove 25 is connected to the vacuum heat collecting tube 6 through a guide hole 27. By providing the heat conducting sheet 26, the high-temperature water vapor generated inside the vacuum heat collecting tube 6 can enter the heating groove 25 through the guide hole 27, and the heat conducting sheet 26 is used to heat the water storage block 22 inside the water storage tank 21, so as to prevent the water storage block 22 from freezing inside and affecting the transmission of water.

[0056] Working principle: By designing an intelligent dual-power heat pump unit, the power control system is used to compare the actual power generation of the photovoltaic power generation module with the rated power consumption of the heat pump: if the actual power generation is greater than or equal to the rated power consumption of the heat pump, it means that photovoltaic power generation is sufficient to drive the heat pump to work normally, then the power control system controls the power input of the heat pump to be provided entirely by photovoltaic power generation, and the city power does not participate; if the actual power generation is less than the rated power consumption of the heat pump, it means that photovoltaic power generation is insufficient to drive the heat pump to work normally, then the power control system controls the power input of the heat pump to be provided jointly by photovoltaic power generation and city power, and calculates the input ratio of photovoltaic power generation and city power; the present invention can intelligently adjust the operation mode of the heat pump system (solar energy priority, city power auxiliary), and can directly use solar photovoltaic panels to generate electricity to drive the entire heat pump system, and can achieve 100% energy saving when there is sufficient sunlight, and realize 0 city power input operation. When the illumination changes, the city power can automatically and intelligently compensate to ensure the normal operation of the heat pump system, truly realizing dual power supply of city power and solar energy, and ensuring the stability, reliability and energy saving of the heat pump system;

[0057] The vacuum heat collecting tube 6 is used to collect solar heat, heat the water inside it and form water vapor, and then the water vapor enters the hollow structure of the grille 3 through the delivery pipe 7, thereby heating the grille 3, and then the fan 4 blows the outside air into the box body 1 through the air inlet 28 when it rotates. The airflow is heated by the grille 3 when passing through the air inlet 28, and the airflow temperature is increased. On the one hand, the frost on the surface of the heat exchange fins is melted to reduce the adhesion of the heat exchange fins. On the other hand, when the air exchanges heat between the heat exchange fins, the refrigerant pipeline and the refrigerant, the hot air flow can increase the temperature difference between the air heat source and the refrigerant, thereby improving the evaporation efficiency of the refrigerant;

[0058] When the fan 4 rotates, the rotating shaft 29 drives the active plate 16 to rotate. When the active plate 16 rotates to the bottom, the slider 14 is driven to slide on the surface of the limit rod 13 through the driven plate 15, and then the slider 14 drives the movable ring 9 to move on the surface of the vacuum heat collecting tube 6 through the pull rope 12, and stretches the spring 11. When the active plate 16 rotates to the top, it is separated from the driven plate 15, and then the spring 11 pulls the movable ring 9, the pull rope 12 and the slider 14 to reset. The movable ring 9 reciprocates on the surface of the vacuum heat collecting tube 6, and the dust and the like adhering to the surface of the vacuum heat collecting tube 6 are removed by the flexible ring 10. The dirt is scraped off to prevent it from blocking the vacuum heat collecting tube 6 and causing the heat collecting efficiency to decrease; during the movement of the slider 14, the end of the paddle 19 can slide between the multiple elastic ridges 18 on the surface of the grille 3 and squeeze the elastic ridges 18, thereby driving the grille 3 to continuously vibrate left and right inside the air inlet 28, which, on the one hand, enhances its disturbing effect on the airflow and improves the heat exchange efficiency between it and the airflow; on the other hand, it can promote the condensed water inside the grille 3 to flow downward and be collected inside the vacuum heat collecting tube 6 through the conveying pipe 7, thereby improving the collection and reflux efficiency of the condensed water;

[0059] The drain pipe 20 is used to discharge the water formed by the melting of frost inside the box body 1, and the water can enter the water storage tank 21 and be absorbed by the water storage block 22 when it is discharged through the drain pipe 20. When the movable ring 9 moves to the side of the mounting block 5, the flexible ring 10 can contact the water storage block 22 and absorb water from its surface, so that the flexible ring 10 is in a wet state, and then when it is scraped on the surface of the vacuum collector tube 6, it can improve the efficiency of wiping dirt and reduce the residue of stubborn dirt; when the movable ring 9 moves to the side of the mounting block 5, the movable ring 9 and the pressing block 23 attract each other, driving the pressing block 23 to move. Slide inside the water storage tank 21, and use the pressure block 23 to apply pressure to the water storage block 22, so as to squeeze out the water inside the water storage block 22, accelerate the process of water flowing out through the surface of the water storage block 22 and being absorbed by the flexible ring 10, improve the water replenishment efficiency of the flexible ring 10, and ensure its efficient wiping performance; by setting the heat conductive sheet 26, the high-temperature water vapor generated inside the vacuum heat collecting tube 6 can enter the heating tank 25 through the guide hole 27, and use the heat conductive sheet 26 to heat the water storage block 22 inside the water storage tank 21, so as to prevent the water storage block 22 from freezing and affecting the transmission of water.

[0060] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0061] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A solar intelligent dual-power high-cold variable frequency air source heat pump unit, characterized by: include: A mains power interface, the mains power interface is used to access the alternating current of the municipal power; the mains power interface is connected to a rectifier; the rectifier is used to convert the municipal alternating current into direct current; A photovoltaic power generation module, which is used to convert solar energy into direct current electricity; A variable frequency air source heat pump, the variable frequency air source heat pump comprising a compressor, an evaporator, a condenser and an expansion valve; A data monitoring system, wherein the data monitoring system monitors solar power generation, heat pump power consumption, outdoor temperature and indoor temperature in real time; Power control system: The power control system manages the power input ratio of solar energy and city electricity to the heat pump by comparing the solar power generation and the rated power consumption of the heat pump.

2. According to claim 1, a solar intelligent dual-power high-cold variable frequency air source heat pump unit is characterized by: The evaporator comprises a housing (1); a base (2) is fixedly connected to the lower side of the housing (1); a refrigerant pipeline and heat exchange fins are arranged inside the housing (1); a grille (3) is arranged inside the air inlet (28) of the housing (1); the interior of the grille (3) is designed to be a hollow structure; a fan (4) is arranged inside the housing (1) at a position corresponding to the air inlet (28); a pair of mounting blocks (5) are fixedly connected to the surface of the base (2); a vacuum heat collection tube (6) is fixedly connected between the mounting blocks (5), and water is stored inside the vacuum heat collection tube (6); the vacuum heat collection tube (6) and the grille (3) are connected via a delivery pipe (7).

3. According to claim 2, a solar intelligent dual-power high-cold variable frequency air source heat pump unit is characterized by: The height of the vacuum heat collecting tube (6) is lower than the bottom of the grid (3).

4. According to claim 3, a solar intelligent dual-power high-cold variable frequency air source heat pump unit is characterized by: A group of heat-conducting wires (8) are evenly distributed inside the grille (3); the heat-conducting wires (8) penetrate the hollow structure of the grille (3).

5. According to claim 2, a solar intelligent dual-power high-cold variable frequency air source heat pump unit is characterized by: The outer side of the vacuum heat collection tube (6) is sleeved with a movable ring (9); the inner side of the movable ring (9) is fixedly connected with a flexible ring (10), and the flexible ring (10) fits the vacuum heat collection tube (6); a spring (11) is fixedly connected between one side of the movable ring (9) and the mounting block (5), and the other side of the movable ring (9) is fixedly connected with a pull rope (12); the pull rope (12) is connected to a driving component.

6. According to claim 5, a solar intelligent dual-power high-cold variable frequency air source heat pump unit is characterized by: The driving assembly comprises a limit rod (13) fixedly connected to the inside of the box (1); the limit rod (13) is located below the rotating shaft (29) of the fan (4); a slider (14) is slidably connected to the surface of the limit rod (13), and the slider (14) is fixedly connected to the pull rope (12); a driven plate (15) is fixedly connected to the upper side of the slider (14); and an active plate (16) is fixedly connected to the surface of the rotating shaft (29).

7. According to claim 6, a solar intelligent dual-power high-cold variable frequency air source heat pump unit is characterized by: A group of elastic members (17) are evenly distributed between the side of the grille (3) and the air inlet (28); a group of elastic convex strips (18) are evenly distributed at the bottom of one side of the grille (3) close to the limiting rod (13); a paddle (19) is fixedly connected to the surface of the slider (14), and the paddle (19) is inserted between the elastic convex strips (18).

8. According to claim 6, a solar intelligent dual-power high-cold variable frequency air source heat pump unit is characterized by: A drainage pipe (20) is provided at the bottom of the box body (1); a water storage tank (21) is provided inside the top of the mounting block (5), and an opening is provided on a side of the water storage tank (21) close to the movable ring (9); the lower end of the drainage pipe (20) is connected to the water storage tank (21); a water storage block (22) is fixedly connected inside the water storage tank (21); the water storage block (22) and the flexible ring (10) are both made of water-absorbing material.

9. The solar intelligent dual-power high-cold variable frequency air source heat pump unit according to claim 8, characterized in that: A pressing block (23) is provided on the side of the water storage block (22) away from the movable ring (9), and the pressing block (23) is slidably connected to the inside of the water storage tank (21); a second spring (24) is fixedly connected between the pressing block (23) and the water storage tank (21); and the pressing block (23) and the movable ring (9) are magnetically attracted to each other when they are close to each other.

10. The solar intelligent dual-power high-cold variable frequency air source heat pump unit according to claim 9, characterized in that: A heating groove (25) is provided at the bottom of the water storage tank (21); a heat conducting plate (26) is fixedly connected to the top of the heating groove (25); and the heating groove (25) is connected to the vacuum heat collecting pipe (6) via a guide hole (27).

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