Solar heat pump unit and control method thereof

Abstract

The invention relates to the technical field of heat pump units, in particular to a solar heat pump unit and a control method thereof.The solar heat pump unit comprises a base, a water tank and a heat pump unit shell are integrally formed at the top of the base, a protection plate is movably installed on one side of the heat pump unit shell, and a rainproof assembly is arranged on the side, away from the heat pump unit shell, of the protection plate; a cleaning assembly is arranged on the side, away from the rainproof assembly, of the protection plate, and a solar evaporator, a compressor and a condenser are sequentially and fixedly connected to the inner bottom face of the heat pump unit shell from left to right. According to the improved solar heat pump unit, the solar evaporator and the protection plate in the heat pump unit are cleaned through the cleaning assembly, the situation that the heat absorption effect of the solar evaporator is reduced due to dust attachment is prevented, when the cleaning assembly operates, bristles can be automatically cleaned, and dust on the surface of a filter column is scraped away; the replacement frequency of the roller column is reduced, and the cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pump units, and specifically to a solar energy heat pump unit and its control method. Background Art

[0002] A solar energy heat pump is a device that converts low-potential thermal energy into utilizable high-potential energy. The low-potential thermal energy includes air, soil, water, solar energy, industrial waste heat, etc. The solar energy heat pump is mainly divided into three parts, namely, an energy collection area, an energy conversion area, and an energy utilization area. The energy collection area is composed of a trough-type collector and a thermal auxiliary device. The energy conversion area is composed of a hot water heat pump main unit and a water tank. The energy utilization area is the indoor part of the hot water usage place, including hot water pipes, faucets, etc.

[0003] The existing patent (publication number: CN114001492B) discloses an air source heat pump unit, including a housing, an inner housing, a protective net, a heat pump main body, a cleaning mechanism, and a lifting mechanism; there is an inner cavity in the housing, and a first window communicating with the inner cavity is provided on the side of the housing; the inner housing is arranged in the inner cavity, there is a receiving cavity in the inner housing, and a second window for communicating with the receiving cavity is further provided on one side of the inner housing; the second window and the first window face the same direction; there is a platform behind the housing; the heat pump main body includes an evaporator and a heat preservation water tank, the evaporator is arranged on one side of the receiving cavity close to the second window, and the heat preservation water tank is arranged on the platform; the protective net is arranged on the second window, and air holes for passing air are arranged on the protective net; the cleaning mechanism is arranged between the protective net and the evaporator to clean the dust on the protective net and the evaporator; the lifting mechanism is arranged in the inner cavity to lift the inner housing and move it towards the inside of the housing. The existing technology has the following problems: The existing heat pump unit uses the cleaning mechanism to clean the dust on the evaporator and the protective net to prevent blockage and reduce the heat exchange efficiency. However, the dust brushed off by the cleaning mechanism drifts everywhere without being restricted. This dust will reattach to the evaporator protective net and even adsorb on the brush, resulting in a significant reduction in the subsequent cleaning effect of the evaporator. Summary of the Invention

[0004] The purpose of the present invention is to provide a solar energy heat pump unit and its control method to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solutions: a solar heat pump unit and its control method, including a base, on the top of the base, a water tank and a heat pump unit housing are integrally formed respectively. A protective plate is movably installed on one side of the heat pump unit housing. A rainproof component is provided on the side of the protective plate away from the heat pump unit housing. A cleaning component is provided on the side of the protective plate away from the rainproof component. On the inner bottom surface of the heat pump unit housing, a solar evaporator, a compressor and a condenser are fixedly connected in sequence from left to right. A bearing plate is integrally formed between the front and rear walls of the heat pump unit housing. A drying filter is fixedly connected to the top of the bearing plate. One side of the drying filter is communicated with an expansion valve through a pipeline;

[0006] The cleaning component includes a motor fixedly connected in the installation groove on the top surface of the base. The output end of the motor is fixedly connected with a reciprocating lead screw. The reciprocating lead screw penetrates through the middle of one end of the lifting frame, and the other end of the lifting frame slides through a limiting column. A blower is fixedly installed inside one end of the lifting frame close to the limiting column. A dust suction chamber is slidably connected in the middle of the lifting frame. A filter column is slidably inserted into one end of the dust suction chamber close to the blower. Dust suction holes are provided on both sides of the dust suction chamber, and the middle parts on both sides of the dust suction chamber are semi-circular grooves sunken towards the middle. A striking rod is integrally formed on the inner wall of the semi-circular groove, and a cleaning roller is provided in the middle of the semi-circular groove. Brush hairs are provided on the outer surface of the cleaning roller. One end of the cleaning roller away from the blower penetrates through the side wall of the lifting frame and is fixedly connected with a driven gear. A driving gear is meshed on one side of the driven gear. The driving gear is integrally formed at one end of a cylindrical cam. Cam grooves are provided at both ends of the outer surface of the cylindrical cam. A pressing column is movably inserted into the cam groove. The pressing column is integrally formed on the upper and lower surfaces inside a through cavity. The through cavity is opened in the middle of the dust suction chamber.

[0007] Preferably, the axial height of the driving gear is greater than the axial height of the driven gear, and the driving gear is meshed with a rack. The rack is fixedly connected to the surface of the inner rear wall of the heat pump unit housing.

[0008] Preferably, the filter column is of a hollow design, and the filter column is used to communicate the dust suction chamber with the blower. A telescopic hose is fixedly connected between the dust suction chamber and the blower. The telescopic hose is sleeved on the outside of the filter column.

[0009] Preferably, strip-shaped air inlets are opened on the upper and lower walls of the semi-circular groove. The strip-shaped air inlets are used to communicate the inside of the dust suction chamber with the outside.

[0010] Preferably, the bottom of the blower is communicated with one end of an air duct, and the other end of the air duct is communicated with a flow dividing chamber. An air jet nozzle is fixedly installed on one side of the flow dividing chamber.

[0011] Preferably, the expansion valve connects the solar evaporator and the dryer filter through a pipeline, the dryer filter is connected to the condenser through a pipeline, the water tank and the condenser are connected through a water pipe, and the water pipe is divided into a water inlet pipe and a water outlet pipe.

[0012] Preferably, the rain-proof component includes a guiding track fixedly connected to the side of the protection plate away from the heat pump unit housing. An oil groove is formed in the middle of the inner side of the guiding track, and a limiting sliding groove is formed on one side of the guiding track close to the middle of the base.

[0013] Preferably, a hole is formed between the limiting sliding groove and the oil groove. A limiting slider is slidably connected inside the limiting sliding groove. The limiting sliders are integrally formed on both sides of the rain-proof frame. The top surface of the limiting slider is fixedly connected with a piston sheet through a vertical rod. The piston sheet is slidably arranged inside the oil groove. One side of the oil groove is connected to one end of a hydraulic pipe, and the other end of the hydraulic pipe is communicated with a hydraulic tank. A piston plate is slidably connected inside the hydraulic tank. The bottom surface of the piston plate is fixedly connected with a piston rod. The bottom end of the piston rod extends into the heat pump unit housing, and a first spring is fixedly connected between the bottom end of the piston rod and the inner top surface of the heat pump unit housing. The bottom surface of the piston sheet is fixedly connected with a second spring.

[0014] Preferably, horizontal sealing strips are equidistantly distributed in the middle of the rain-proof frame, and the horizontal sealing strips are misaligned with the air inlet in the middle of the protection plate.

[0015] A control method based on a solar heat pump unit, which applies the solar heat pump unit as described above, includes the following steps:

[0016] S001: Convert solar energy into electrical energy and heat energy through the solar panel on the top of the solar evaporator to provide power for the compressor, condenser, motor and fan. The heat energy in the solar evaporator heats the refrigerant in the compressor to heat the refrigerant.

[0017] S002: The heated refrigerant enters the condenser through a pipeline. At the same time, under the action of an external circulation pump, the cold water in the water tank flows into the condenser from the water inlet pipe and flows out of the condenser from the water outlet pipe. When the water body flows through the condenser, the water body exchanges heat with the high-temperature refrigerant to achieve the purpose of heating the water body.

[0018] S003: After the heat exchange is completed, the temperature of the refrigerant decreases, and it flows through the inlet of the dryer filter and enters the expansion valve for throttling expansion. Finally, it returns to the solar evaporator to absorb heat and evaporate, entering the next heat transfer cycle.

[0019] Compared with the prior art, the beneficial effects of the present invention:

[0020] In the present invention, the cleaning component is used to clean the solar evaporator and the protection plate inside the heat pump unit, preventing the heat absorption effect of the solar evaporator from decreasing due to dust adhesion. Cleaning the protection plate ensures its air permeability, enabling external heat to come into good contact with the solar evaporator and be absorbed.

[0021] In the present invention, when the cleaning component is operating, it can also automatically clean the bristles on the surface of the cleaning roller, preventing dust from adhering to the bristles. Over time, the cleaning effect of the bristles will become worse and worse, and even reattach to the surface of the solar evaporator.

[0022] In the present invention, when the dust collection bin in the cleaning component moves reciprocally, it can also scrape the dust on the surface of the filter column, reducing the replacement frequency of the roller column and saving costs.

[0023] In the present invention, the rainproof component can block the air inlet in the middle of the protection plate when it rains, preventing external rainwater from entering the interior of the protection plate. During daily operation, the rainproof frame in the rainproof component can also scrape the impurities attached to the outer surface of the protection plate, further improving the cleaning effect of the protection plate and making the cleaning more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the front view three-dimensional structure schematic diagram of the present invention;

[0025] Figure 2 is the front view sectional three-dimensional structure schematic diagram of the present invention;

[0026] Figure 3 is the left view sectional three-dimensional structure schematic diagram of the present invention;

[0027] Figure 4 is the exploded structure schematic diagram of the cleaning component of the present invention;

[0028] Figure 5 is the left view sectional three-dimensional structure schematic diagram of the dust collection bin of the present invention;

[0029] Figure 6 is the left view partial sectional three-dimensional structure schematic diagram of the guiding track of the present invention;

[0030] Figure 7 is of the present invention Figure 6 magnified structure schematic diagram at position A;

[0031] Figure 8 is the three-dimensional structure schematic diagram of the motor of the present invention.

[0032] In the figure: 1. Base; 2. Water tank; 3. Heat pump unit housing; 4. Protective plate; 5. Rainproof component; 501. Guide rail; 502. Oil groove; 503. Limit chute; 504. Limit slider; 505. Rainproof frame; 506. Piston piece; 507. Hydraulic pipe; 508. Hydraulic tank; 509. Piston plate; 5010. Piston rod; 5011. First spring; 5012. Second spring; 6. Cleaning component; 601. Motor; 602. Reciprocating lead screw; 603. Lifting frame; 604. Limit post; 605. Fan; 606. Dust suction bin; 607. Filter column; 608. Telescopic hose; 609. Semi-circular groove; 6010. Striking rod; 6011. Cleaning roller; 6012. Brush bristles; 6013. Driven gear; 6014. Driving gear; 6015. Cylindrical cam; 6016. Cam groove; 6017. Extrusion column; 6018. Through cavity; 6019. Rack; 6020. Air duct; 6021. Diverging cavity; 6022. Jet nozzle; 7. Solar evaporator; 8. Compressor; 9. Condenser; 10. Bearing plate; 11. Dry filter; 12. Expansion valve. Detailed implementation manner

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0034] Please refer to Figures 1 to 8 , the present invention provides a technical solution: a solar heat pump unit and its control method, including a base 1, a water tank 2 and a heat pump unit housing 3 are integrally formed on the top of the base 1 respectively, a protective plate 4 is movably installed on one side of the heat pump unit housing 3, a rainproof component 5 is provided on the side of the protective plate 4 away from the heat pump unit housing 3, a cleaning component 6 is provided on the side of the protective plate 4 away from the rainproof component 5, a solar evaporator 7, a compressor 8 and a condenser 9 are fixedly connected in sequence from left to right on the inner bottom surface of the heat pump unit housing 3, a bearing plate 10 is integrally formed between the front and rear walls of the heat pump unit housing 3, a dry filter 11 is fixedly connected to the top of the bearing plate 10, an expansion valve 12 is connected to one side of the dry filter 11 through a pipeline, the expansion valve 12 connects the solar evaporator 7 and the dry filter 11 through a pipeline, the dry filter 11 is connected to the condenser 9 through a pipeline, and the water tank 2 and the condenser 9 are connected through a water pipe, and the water pipe is divided into a water inlet pipe and a water outlet pipe.

[0035] In this embodiment, as Figures 3 to 5 and Figure 8As shown in the figure, the cleaning component 6 includes a motor 601 fixedly connected to the mounting groove on the top surface of the base 1. The output end of the motor 601 is fixedly connected with a reciprocating lead screw 602. The reciprocating lead screw 602 penetrates through the middle of one end of the lifting frame 603, and the other end of the lifting frame 603 slidably penetrates through a limiting column 604. A blower 605 is fixedly installed inside one end of the lifting frame 603 close to the limiting column 604. A dust suction chamber 606 is slidably connected to the middle of the lifting frame 603. A filter column 607 is slidably inserted into one end of the dust suction chamber 606 close to the blower 605. Dust suction holes are formed on both sides of the dust suction chamber 606, and the middle parts of both sides of the dust suction chamber 606 are semi-circular grooves 609 sunken towards the middle. A striking rod 6010 is integrally formed on the inner wall of the semi-circular groove 609, and a cleaning roller 6011 is arranged in the middle of the semi-circular groove 609. Brush hairs 6012 are arranged on the outer surface of the cleaning roller 6011. One end of the cleaning roller 6011 away from the blower 605 penetrates through the side wall of the lifting frame 603 and is fixedly connected with a driven gear 6013. A driving gear 6014 is meshed with one side of the driven gear 6013. The driving gear 6014 is integrally formed at one end of a cylindrical cam 6015. Cam grooves 6016 are formed at both ends of the outer surface of the cylindrical cam 6015. A pressing column 6017 is movably inserted into the cam grooves 6016. The pressing column 6017 is integrally formed on the upper and lower surfaces inside a through cavity 6018. The through cavity 6018 is formed in the middle of the dust suction chamber 606. The axial height of the driving gear 6014 is greater than the axial height of the driven gear 6013, and the driving gear 6014 is meshed with a rack 6019. The rack 6019 is fixedly connected to the inner wall surface of the rear wall inside the outer shell 3 of the heat pump unit. Strip-shaped air inlets are formed on the upper and lower walls of the semi-circular groove 609. The strip-shaped air inlets are used to communicate the inside of the dust suction chamber 606 with the outside;When the motor 601 starts, it drives the reciprocating lead screw 602 to rotate, thereby driving the lifting frame 603 to perform reciprocating up and down movements. When the lifting frame 603 moves reciprocally up and down, the driving gear 6014 meshes with the rack 6019, and the driving gear 6014 rotates on its own axis. At the same time, it drives the driven gears 6013 on both sides to rotate on their own axes. The rotation of the driven gears 6013 drives the cleaning rollers 6011 to rotate on their own axes. The brush hairs 6012 on the surface of the cleaning rollers 6011 are used to clean the inner side of the protection plate 4 and the surface of the solar evaporator 7 simultaneously, preventing the solar evaporator 7 from having a reduced heat absorption efficiency due to a large amount of dust and impurities adhering to its surface. It should be noted here that this solar evaporator 7 can convert solar energy into heat energy and also extract heat from the air, with a higher heat absorption efficiency. When the cleaning rollers 6011 clean the dust from the surface of the solar evaporator 7, the dust will disperse in the air. At this time, the fan 605 operates, sucking the air in the dust collection chamber 606 into the fan 605 through the filter column 607. As the pressure in the dust collection chamber 606 decreases, external air will enter the dust collection chamber 606 through the strip-shaped air inlet and the dust suction holes. During this process, the dust dispersed in the external air can be sucked into the dust collection chamber 606 for internal storage. Also, dust will adhere to the brush hairs 6012 on the surface of the cleaning rollers 6011. During the rotation of the cleaning rollers 6011, the brush hairs 6012 will gradually be rotated to be close to the semi-circular groove 609 and contact the striking rod 6010 on the outer wall of the semi-circular groove 609, causing the brush hairs 6012 to vibrate due to the impact when contacting, shaking off the dust. The shaken-off dust will be promptly sucked into the dust collection chamber 606 through the strip-shaped air inlet, always keeping the brush hairs 6012 clean, and preventing problems such as a decrease in the cleaning effect due to a large amount of dust adhering to the brush hairs 6012 or the dust on the brush hairs 6012 re-adhering to the surface of the solar evaporator 7. Moreover, when the driving gear 6014 rotates on its own axis, it drives the cylindrical cam 6015 to rotate on its own axis. When the cylindrical cam 6015 rotates, it drives the extrusion column 6017 to perform reciprocating movements along the axial direction of the cylindrical cam 6015 through the cam groove 6016. Also, since the extrusion column 6017 is arranged in the through cavity 6018 in the middle of the dust collection chamber 606, this structure can drive the dust collection chamber 606 to perform reciprocating movements in the front and back directions, increasing the movement state of the striking rod 6010, having a better dust removal effect by striking the brush hairs 6012, and also avoiding the situation where the striking rod 6010 can only strike and remove dust from the brush hairs 6012 at a fixed position.;

[0036] In this embodiment, as Figure 5As shown, the filter column 607 has a hollow design, and the filter column 607 is used to connect the dust suction chamber 606 and the blower 605. A telescopic hose 608 is fixedly connected between the dust suction chamber 606 and the blower 605, and the telescopic hose 608 is sleeved outside the filter column 607. When the filter column 607 reciprocates along the axis direction of the cylindrical cam 6015 in the dust suction chamber 606, it can still maintain the filtering effect, preventing the content in the dust suction chamber 606 from entering the inside of the blower 605. At the same time, the reciprocating motion of the dust suction chamber 606 is used to scrape the dust attached to the outer surface of the filter column 607, extending the cleaning cycle of the filter column 607.

[0037] In this embodiment, as Figure 4 shown, the bottom of the blower 605 is connected to one end of the air duct 6020, and the other end of the air duct 6020 is connected to a flow dividing chamber 6021. A jet nozzle 6022 is fixedly installed on one side of the flow dividing chamber 6021. This structure enables the blower 605 to blow the filtered air into the inside of the flow dividing chamber 6021, and finally spray out from the jet nozzle 6022 on one side of the flow dividing chamber 6021. This part of the sprayed air can blow the impurities accumulated in the air inlet in the middle of the protective plate 4 to the outside of the protective plate 4, assisting the cleaning roller 6011 to clean the protective plate 4, further improving the cleaning effect of the protective plate 4, and ensuring the air permeability of the protective plate 4.

[0038] In this embodiment, as Figure 1 、 Figure 2 and Figures 6 to 7As shown in the figure, the rainproof component 5 includes a guiding track 501 fixedly connected to the side of the protection plate 4 away from the heat pump unit housing 3. In the middle of the inner side of the guiding track 501, an oil groove 502 is provided. And on one side of the guiding track 501 close to the middle of the base 1, a limiting sliding groove 503 is provided. A hole is provided between the limiting sliding groove 503 and the oil groove 502. A limiting slider 504 is slidably connected inside the limiting sliding groove 503. The limiting sliders 504 are integrally formed on both sides of the rainproof frame 505. The top surface of the limiting slider 504 is fixedly connected with a piston sheet 506 through a vertical rod. The piston sheet 506 is slidably arranged inside the oil groove 502. One side of the oil groove 502 is communicated with one end of a hydraulic pipe 507. And the other end of the hydraulic pipe 507 is communicated with a hydraulic tank 508. A piston plate 509 is slidably connected inside the hydraulic tank 508. The bottom surface of the piston plate 509 is fixedly connected with a piston rod 5010. The bottom end of the piston rod 5010 extends into the heat pump unit housing 3. And a first spring 5011 is fixedly connected between the bottom end of the piston rod 5010 and the inner top surface of the heat pump unit housing 3. The bottom surface of the piston sheet 506 is fixedly connected with a second spring 5012. Horizontally sealing strips are equidistantly distributed in the middle of the rainproof frame 505. And the horizontally sealing strips are misaligned with the air inlet in the middle of the protection plate 4. A rain sensor (not shown in the figure) is installed on the top of the heat pump unit housing 3. When it rains, the lifting frame 603 will rise to the highest point and then stop. At this time, the top surface of the lifting frame 603 will squeeze the piston rod 5010 upward. At this time, the piston rod 5010 pushes the piston plate 509 at the top to rise inside the hydraulic tank 508. At the same time, the first spring 5011 is compressed. The piston plate 509 rises and squeezes the hydraulic oil in the hydraulic tank 508 into the oil groove 502 through the hydraulic pipe 507. At this time, the piston sheet 506 in the oil groove 502 is squeezed downward. When the piston sheet 506 moves downward, it will compress the second spring 5012. At the same time, the piston sheet 506 drives the limiting slider 504 to move downward through the vertical rod in the middle of the bottom surface. The limiting slider 504 drives the connected rainproof frame 505 to move downward. So that the horizontally sealing strips in the middle of the rainproof frame 505 coincide with the air inlet in the middle of the protection plate 4. The air inlet is blocked by the horizontally sealing strips to prevent rainwater from entering the heat pump unit housing 3 and causing damage or short circuit. And in the daily working state, the reciprocating up and down movement of the rainproof frame 505 can scrape the attachments on the outer surface of the protection plate 4. Cooperating with the cleaning component 6 realizes the all-round cleaning of the inside, outside and middle of the protection plate 4.

[0039] A control method based on a solar heat pump unit, which applies the above solar heat pump unit, includes the following steps:

[0040] S001: Convert solar energy into electrical energy and heat energy through the solar panel on the top of the solar evaporator 7 to provide power for the compressor 8, the condenser 9, the motor 601 and the fan 605. The heat energy in the solar evaporator 7 heats the refrigerant in the compressor 8 to heat the refrigerant;

[0041] S002: The heated refrigerant enters the condenser 9 through the pipeline. Meanwhile, under the action of the external circulation pump, the cold water in the water tank 2 flows into the condenser 9 from the water inlet pipe and flows out of the condenser 9 from the water outlet pipe. When the water body flows through the condenser 9, heat exchange is completed between the water body and the high-temperature refrigerant, achieving the purpose of heating the water body.

[0042] S003: After the heat exchange, the temperature of the refrigerant decreases, and it flows through the inlet dry filter 11 and enters the expansion valve 12 for throttling expansion. Finally, it returns to the solar evaporator 7 to absorb heat and evaporate, entering the next heat transfer cycle.

[0043] The usage method and advantages of the present invention: When the solar heat pump unit and its control method are in use, the working process is as follows:

[0044] The solar evaporator 7 and the protection plate 4 in the heat pump unit are cleaned through the cleaning component 6, preventing the heat absorption effect of the solar evaporator 7 from decreasing due to dust attachment. Cleaning the protection plate 4 ensures the air permeability of the protection plate 4, enabling external heat to come into good contact with and be absorbed by the solar evaporator 7. Moreover, when the cleaning component 6 operates, it can automatically clean the bristles 6012 on the surface of the cleaning roller 6011, preventing dust from attaching to the bristles 6012. Over time, the cleaning effect of the bristles 6012 will become worse and worse, and even reattach to the surface of the solar evaporator 7. When the dust collection bin 606 in the cleaning component 6 moves reciprocally, it can also scrape the dust on the surface of the filter column 607, reducing the replacement frequency of the filter column 607 and saving costs. The rain protection component 5 can block the air inlet in the middle of the protection plate 4 when it rains, preventing external rainwater from entering the interior of the protection plate 4. During daily operation, the rain protection frame 505 in the rain protection component 5 can also scrape the impurities attached to the outer surface of the protection plate 4, further improving the cleaning effect of the protection plate 4 and making the cleaning more comprehensive.

[0045] The above shows and describes the basic principles, main features, and advantages of the present invention. Technical staff in this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A solar heat pump unit, comprising a base (1), characterized in that: On the top of the base (1), a water tank (2) and a heat pump unit housing (3) are integrally formed respectively. On one side of the heat pump unit housing (3), a protective plate (4) is movably installed. On the side of the protective plate (4) away from the heat pump unit housing (3), a rain-proof component (5) is provided. On the side of the protective plate (4) away from the rain-proof component (5), a cleaning component (6) is provided. On the inner bottom surface of the heat pump unit housing (3), a solar evaporator (7), a compressor (8) and a condenser (9) are fixedly connected in sequence from left to right. Between the front and rear walls of the heat pump unit housing (3), a bearing plate (10) is integrally formed. On the top of the bearing plate (10), a dryer filter (11) is fixedly connected. On one side of the dryer filter (11), an expansion valve (12) is connected through a pipeline; The cleaning component (6) includes a motor (601) fixedly connected in the installation groove on the top surface of the base (1). The output end of the motor (601) is fixedly connected with a reciprocating lead screw (602). The reciprocating lead screw (602) penetrates through the middle of one end of a lifting frame (603), and the other end of the lifting frame (603) slidably penetrates through a limiting column (604). Inside the lifting frame (603) near one end of the limiting column (604), a blower (605) is fixedly installed. In the middle of the lifting frame (603), a dust suction bin (606) is slidably connected. A filter column (607) is slidably inserted into one end of the dust suction bin (606) near the blower (605). Dust suction holes are formed on both sides of the dust suction bin (606), and the middle parts on both sides of the dust suction bin (606) are semi-circular grooves (609) sunken towards the middle. On the inner wall of the semi-circular groove (609), a striking rod (6010) is integrally formed, and a cleaning roller (6011) is provided in the middle of the semi-circular groove (609). On the outer surface of the cleaning roller (6011), bristles (6012) are provided. One end of the cleaning roller (6011) away from the blower (605) penetrates through the side wall of the lifting frame (603) and is fixedly connected with a driven gear (6013). On one side of the driven gear (6013), a driving gear (6014) is meshed. The driving gear (6014) is integrally formed at one end of a cylindrical cam (6015). On the outer surface of the cylindrical cam (6015), cam grooves (6016) are formed at both ends. Inside the cam grooves (6016), a pressing column (6017) is movably inserted. The pressing column (6017) is integrally formed on the upper and lower surfaces inside a through cavity (6018). The through cavity (6018) is formed in the middle of the dust suction bin (606).

2. The solar energy heat pump unit according to claim 1, characterized in that: The axial height of the driving gear (6014) is greater than that of the driven gear (6013), and the driving gear (6014) is meshed with a rack (6019). The rack (6019) is fixedly connected to the surface of the inner rear wall of the heat pump unit housing (3).

3. The solar energy heat pump unit according to claim 1, characterized in that: The filter column (607) is designed to be hollow, and the filter column (607) is used to connect the dust suction chamber (606) and the fan (605). A telescopic hose (608) is fixedly connected between the dust suction chamber (606) and the fan (605), and the telescopic hose (608) is sleeved outside the filter column (607).

4. A solar heat pump unit according to claim 1, characterized in that: Strip-shaped air inlets are provided on the upper and lower walls of the semi-circular groove (609), and the strip-shaped air inlets are used to connect the inside and outside of the dust suction chamber (606).

5. A solar heat pump unit according to claim 1, characterized in that: The bottom of the fan (605) is connected to one end of the air duct (6020), and the other end of the air duct (6020) is connected to a flow dividing chamber (6021). A jet nozzle (6022) is fixedly installed on one side of the flow dividing chamber (6021).

6. The solar heat pump unit according to claim 1, characterized in that: The expansion valve (12) connects the solar evaporator (7) and the drying filter (11) through a pipeline. The drying filter (11) is connected to the condenser (9) through a pipeline. A water pipe is connected between the water tank (2) and the condenser (9), and the water pipe is divided into a water inlet pipe and a water outlet pipe.

7. A solar heat pump unit according to claim 1, characterized in that: The rainproof component (5) includes a guiding track (501) fixedly connected to the side of the protection plate (4) away from the heat pump unit housing (3). An oil groove (502) is provided in the middle of the inner side of the guiding track (501), and a limiting sliding groove (503) is provided on one side of the guiding track (501) close to the middle of the base (1).

8. A solar heat pump unit according to claim 7, characterized in that: A hole is provided between the limiting sliding groove (503) and the oil groove (502). A limiting slider (504) is slidably connected inside the limiting sliding groove (503). The limiting sliders (504) are integrally formed on both sides of the rainproof frame (505). The top surface of the limiting slider (504) is fixedly connected with a piston sheet (506) through a vertical rod. The piston sheet (506) is slidably arranged inside the oil groove (502). One side of the oil groove (502) is connected to one end of a hydraulic pipe (507), and the other end of the hydraulic pipe (507) is connected to a hydraulic tank (508). A piston plate (509) is slidably connected inside the hydraulic tank (508). The bottom surface of the piston plate (509) is fixedly connected with a piston rod (5010). The bottom end of the piston rod (5010) extends into the heat pump unit housing (3), and a first spring (5011) is fixedly connected between the bottom end of the piston rod (5010) and the inner top surface of the heat pump unit housing (3). The bottom surface of the piston sheet (506) is fixedly connected with a second spring (5012).

9. The solar energy heat pump unit according to claim 8, wherein: Horizontal sealing strips are equidistantly distributed in the middle of the rainproof frame (505), and the horizontal sealing strips are misaligned with the air inlet in the middle of the protection plate (4).

10. A control method based on a solar energy heat pump unit, which applies the solar energy heat pump unit described in any one of the above claims 1-9, and is characterized in that: It includes the following steps: S001: The solar energy is converted into electric energy and heat energy by the solar panel on the top of the solar evaporator (7) to provide power for the compressor (8), the condenser (9), the motor (601) and the fan (605). The heat energy in the solar evaporator (7) heats the refrigerant in the compressor (8) to heat the refrigerant; S002: The heated refrigerant enters the condenser (9) through the pipeline. At the same time, under the action of the external circulation pump, the cold water in the water tank (2) flows into the condenser (9) through the water inlet pipe and flows out of the condenser (9) from the water outlet pipe. When the water body flows through the condenser (9), heat exchange is completed between the water body and the high-temperature refrigerant, achieving the purpose of heating the water body; S003: After the heat exchange is completed, the temperature of the refrigerant decreases, and it flows through the inlet drying filter (11) and enters the expansion valve (12) for throttling expansion. Finally, it returns to the solar evaporator (7) to absorb heat and evaporate, entering the next heat transfer cycle.

Images