Device for combining steam compressor with air source heat pump

Abstract

The invention relates to the technical field of air source heat pumps, in particular to a device for combining a vapor compressor with an air source heat pump, which comprises an evaporator, a heat exchanger, a compressor, an expansion valve and a four-way reversing valve, the evaporator is composed of a fin group and a penetrating copper pipe, the fin group is composed of fins at equal intervals, the fins are divided into front and rear aluminum sheets, the copper pipe is clamped between the front and rear aluminum sheets, and the four-way reversing valve is arranged between the front and rear aluminum sheets. Semicircular grooves embedded with the copper pipes are formed in the opposite side edges of the front aluminum sheets and the rear aluminum sheets, each set of front aluminum sheets and each set of rear aluminum sheets have outward displacement freedom degrees in the thickness direction of the fin set, the front aluminum sheets and the rear aluminum sheets clamp the copper pipes to form a heat exchange structure, and when evaporator fins need to be cleaned, the front aluminum sheets and the rear aluminum sheets can be separated from the fin set through a mechanical connecting structure or a separating device to achieve separation. Through the separable design, cleaning convenience is improved, and the problem that an evaporator fin in a traditional heat pump device is difficult to clean due to the fixed structure is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air source heat pumps, and in particular to a device combining a steam compressor with an air source heat pump. Background Art

[0002] Air source heat pump is a specific type of heat pump, as an energy-saving device that uses high-level energy to drive heat from a low-level heat source (air) to a high-level heat source. By definition, a heat pump is a device that can convert low-level heat energy that cannot be directly used into usable high-level heat energy, thereby saving some high-level energy. Air, as a low-level heat source for heat pumps, has the characteristics of being widely distributed, unlimited in reserves, and available free of charge. At the same time, air source heat pumps are highly convenient in installation and use.

[0003] In terms of operating mechanism, air source heat pumps rely on the compressor system to realize circulation work, extracting heat from the air to produce hot water. Its working process is as follows: the compressor compresses the refrigerant to increase the temperature of the refrigerant. The heated refrigerant flows through the condenser in the water tank, exchanging heat with water in the process to produce hot water; the refrigerant that has completed the heat exchange returns to the compressor to start the next cycle. During the whole process, the heat of the air is absorbed by the evaporator and transferred to the refrigerant, and the refrigerant then transfers the heat to the water to produce hot water.

[0004] As one of the key components of an air source heat pump, the finned evaporator is usually installed on the top or outer structure of the air source heat pump. It surrounds the heat exchange pipe with densely distributed heat-conducting fins to increase the heat exchange area and enhance the heat exchange effect. However, since the finned evaporator is exposed to the outdoor environment for a long time and relies on the fan to promote the flow of surrounding air to achieve heat exchange, dust is easily accumulated on the surface of the fins. Dust adhesion will significantly affect the heat exchange efficiency between the fins and the air, and thus have an adverse effect on the overall performance of the air source heat pump.

[0005] Patent document announcement number CN117553457B discloses a self-cleaning, efficient heat-exchange air source heat pump, which relates to the technical field of air source heat pumps; specifically, it comprises a box seat, a fixed frame is installed on the top of the box seat, and a top cover is installed on the top of the fixed frame, a fan is installed on the top of the top cover, fin evaporators are installed on both sides of the fixed frame, and a plurality of arranged heat exchange fins are installed on the outside of the fin evaporator, guide slide rods are installed on both sides of the interior of the fixed frame, and a movable seat is slidably installed on the outside of the guide slide rod, and a ball nut is installed on the side of the movable seat.

[0006] The device uses a rotating brush mechanism to extend into the fin gap for cleaning. When the rotating bristles run at high speed and penetrate into the fin gap, local stress concentration is likely to occur because the contact between the brush and the fin is not completely uniform. This stress concentration may cause the fins to deform and change the spacing between the originally closely arranged fins. At the same time, due to the structural characteristics of the heat exchange copper tube passing through the fins, the bristles will form a sanitary dead corner during the cleaning process. Some dust, impurities, and debris caused by the wear of the bristles are easily retained at the junction of the fins and the copper tube, and are difficult to be brought out by the brush. The remaining debris and impurities may also enter the internal system of the air source heat pump with the flow of air, causing more serious problems such as clogging the pipes and affecting the normal operation of other components, greatly increasing the maintenance cost and failure risk of the equipment. Summary of the invention

[0007] In view of the problems existing in the prior art, a device for combining a steam compressor with an air source heat pump is provided. A heat exchange structure is constructed by clamping a copper tube with a front aluminum plate and a rear aluminum plate. When the evaporator fins need to be cleaned, the front aluminum plate and the rear aluminum plate can be separated from each other and detached from the fin group through a specific mechanical connection structure or a separation device. This detachable design greatly improves the convenience of cleaning and effectively avoids the problem that the evaporator fins in traditional heat pump devices are difficult to clean due to the fixed structure.

[0008] In order to solve the problems of the prior art, the present invention provides a device for a steam compressor combined with an air source heat pump, including an evaporator, a heat exchanger, a compressor, an expansion valve and a four-way reversing valve, the evaporator including a fin group and a copper tube transversely penetrating the fin group, the fin group consisting of fins arranged at equal intervals, the fins including a front aluminum sheet and a rear aluminum sheet, the copper tube being assembled between the front aluminum sheet and the rear aluminum sheet in a clamping manner, semicircular groove structures in an interlocking state with the outer surface of the copper tube are respectively provided on the opposite sides of the front aluminum sheet and the rear aluminum sheet, each group of front aluminum sheets and rear aluminum sheets has the freedom to move outward in the thickness direction relative to the fin group.

[0009] Preferably, the evaporator also includes a cleaning mechanism arranged on the windward and leeward sides of the fin group, the cleaning structure having a cleaning head capable of moving along the length and width directions of the fin group, and when the front aluminum sheet and the rear aluminum sheet move outward relative to the fin group, the cleaning head cleans both sides of the front aluminum sheet and the rear aluminum sheet along their length directions.

[0010] Preferably, the evaporator further comprises a guiding mechanism arranged on the cleaning mechanism, and before the cleaning head cleans, the guiding mechanism drives the front aluminum sheet and the rear aluminum sheet corresponding to the cleaning head to move to the outside of the fin group to the cleaning area of ​​the cleaning head.

[0011] Preferably, the evaporator also includes positioning plates arranged at the top and bottom ends of the fin group, and an elastic reset component is arranged on the positioning plate. When the front aluminum plate and the rear aluminum plate move to the two sides of the fin group respectively, the elastic force of the elastic reset component needs to be overcome.

[0012] Preferably, the cleaning mechanism comprises a longitudinal frame capable of moving laterally outside the fin group, and the cleaning head is arranged on the longitudinal frame for longitudinal movement. When the cleaning head moves along its length direction on the longitudinal frame, the cleaning head cleans both sides of the front fin and the rear fin.

[0013] Preferably, the cleaning head includes a cleaning box and two cleaning rollers arranged in the cleaning box. The cleaning box has an insertion port with a diameter larger than the thickness of the fin. When the front aluminum plate and the rear aluminum plate move to the outside of the fin group, they are inserted into the insertion port. When the cleaning box moves along the length direction of the fin, the two cleaning rollers rotate to clean the surface of the front aluminum plate and the rear aluminum plate.

[0014] Preferably, a gear is provided at one end of the cleaning roller, and the longitudinal frame includes two gear rods extending along the length direction of the fin, the gear rods pass through the cleaning box and mesh with the gears, and when the cleaning box moves along the length direction of the gear rods, the two cleaning rollers rotate to clean the surfaces of the front aluminum sheet and the rear aluminum sheet.

[0015] Preferably, a longitudinal drive motor is provided at the top of the longitudinal frame, a guide wheel is provided at the bottom end of the longitudinal frame, a driving wheel is provided on the output shaft of the longitudinal drive motor, a guide belt is provided on the driving wheel and the guide wheel, and the guide belt is fixedly connected to the cleaning box. When the driving wheel rotates, the guide belt drives the cleaning box to move on the longitudinal frame.

[0016] Preferably, the cleaning mechanism further comprises a suction mechanism, a suction port is provided on the cleaning box, the suction port is communicated with the suction mechanism, and when the cleaning roller cleans the fin surface, the suction mechanism extracts dust in the cleaning box.

[0017] Preferably, the elastic reset assembly includes a driven seat slidably arranged on the positioning plate, an elastic reset element is arranged between the driven seat and the positioning plate, and two connecting rods are arranged on the driven plate, which are rotatably connected to the ends of the front aluminum plate and the rear aluminum plate respectively; the guiding mechanism includes a linear push rod arranged on the cleaning mechanism and moving laterally with the cleaning head, and an abutment column capable of abutting against the driven seat is arranged on the output rod of the linear push rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present application constructs a heat exchange structure by sandwiching a copper tube between the front aluminum plate and the rear aluminum plate. This structure is based on the principle of heat conduction and utilizes the excellent thermal conductivity of the aluminum plate to efficiently transfer heat between the refrigerant in the copper tube and the outside air, significantly improving the heat exchange efficiency.

[0019] This structure shows unique technical advantages when it comes to cleaning and maintaining the evaporator fins. When the cleaning head performs cleaning operations on the surfaces of the front and rear aluminum plates, the front and rear aluminum plates can be separated from each other and detached from the fin group with the help of a specific mechanical connection structure or separation device. This separation design breaks through the limitations of the fixed evaporator fin structure in traditional heat pump devices and greatly improves the convenience of cleaning operations.

[0020] From a hygienic perspective, since the front and rear aluminum plates can be completely separated from the fin group, all parts of the fins can be fully exposed during the cleaning process, effectively avoiding the appearance of cleaning blind spots and eliminating the generation of hygienic dead corners. This not only ensures the cleanliness of the fin surface and maintains a stable heat exchange efficiency between the air and the fins, but also reduces the risk of bacteria and mold growth due to the accumulation of dust and impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of an evaporator in a device for combining a steam compressor with an air source heat pump according to the present invention.

[0022] Figure 2 The present invention is a front view of an evaporator in a device for combining a steam compressor with an air source heat pump.

[0023] Figure 3 The present invention is a three-dimensional cross-sectional view of an evaporator in a device for combining a steam compressor with an air source heat pump.

[0024] Figure 4 yes Figure 3 A partial enlarged view of point B.

[0025] Figure 5 It is a stereoscopic diagram of a front aluminum plate and a rear aluminum plate in an evaporator in a device for a steam compressor combined with an air source heat pump of the present invention.

[0026] Figure 6 yes Figure 5 A partial enlarged view of point C.

[0027] Figure 7 It is a schematic diagram of a front aluminum plate and a rear aluminum plate in an evaporator in a device for a steam compressor combined with an air source heat pump of the present invention when they are in contact with each other.

[0028] Figure 8 It is a schematic diagram of a front aluminum plate and a rear aluminum plate in an evaporator in a device for a steam compressor combined with an air source heat pump of the present invention when they are separated.

[0029] Fig. 9 The present invention is a three-dimensional diagram of a cleaning head in an evaporator of a device for a steam compressor combined with an air source heat pump.

[0030] Fig.10The present invention is a three-dimensional exploded view of a cleaning head in an evaporator of a device for a steam compressor combined with an air source heat pump.

[0031] The numbers in the figure are: 1, fin group; 11, front aluminum sheet; 12, rear aluminum sheet; 2, copper tube; 3, cleaning mechanism; 31, cleaning head; 311, cleaning box; 3111, plug interface; 3112, suction port; 312, cleaning roller; 313, gear; 32, longitudinal frame; 321, gear rod; 331, longitudinal drive motor; 332, guide wheel; 333, drive wheel; 334, guide belt; 335, screw rod; 336, transverse drive motor; 4, guiding mechanism; 41, abutment column; 5, positioning plate; 6, elastic reset assembly; 61, driven seat; 62, elastic reset element; 63, connecting rod. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] like Figure 1 , Figure 2 and Figure 3 As shown, a device for a steam compressor combined with an air source heat pump includes an evaporator, a heat exchanger, a compressor, an expansion valve and a four-way reversing valve. The evaporator includes a fin group 1 and a copper tube 2 that transversely penetrates the fin group 1. The fin group 1 is composed of fins arranged at equal intervals. The fins include a front aluminum sheet 11 and a rear aluminum sheet 12. The copper tube 2 is assembled between the front aluminum sheet 11 and the rear aluminum sheet 12 in a clamping manner. Semicircular groove structures that are in a state of being embedded with the outer surface of the copper tube 2 are respectively provided on the opposite sides of the front aluminum sheet 11 and the rear aluminum sheet 12. Each group of front aluminum sheets 11 and rear aluminum sheets 12 has the freedom to move outward in the thickness direction relative to the fin group 1.

[0034] The evaporator is composed of a fin group 1 and a copper tube 2 that runs through the fin group 1 horizontally. The fin group 1 is composed of a series of fins arranged at equal intervals in an orderly manner. This equal interval arrangement can effectively ensure the uniform flow of air between the fins, thereby optimizing the heat exchange efficiency between the air and the refrigerant in the copper tube 2. Each fin is further subdivided into a front aluminum sheet 11 and a rear aluminum sheet 12, and the copper tube 2 is precisely assembled between the front aluminum sheet 11 and the rear aluminum sheet 12 in a clamping manner.

[0035] On the opposite sides of the front aluminum sheet 11 and the rear aluminum sheet 12, there are respectively provided semicircular groove structures which are tightly fitted with the outer surface of the copper tube 2. The design of the semicircular groove structure, on the one hand, ensures good contact between the copper tube 2 and the aluminum sheet, greatly improves the heat conduction efficiency and reduces the thermal resistance; on the other hand, it provides a stable support for the copper tube 2 and enhances the stability of the entire evaporator structure.

[0036] Each group of front aluminum sheets 11 and rear aluminum sheets 12 has the freedom to move outward relative to the thickness direction of the fin group 1. When the evaporator needs to be cleaned or maintained, the operator can use this freedom to move the front aluminum sheets 11 and rear aluminum sheets 12 outward, thereby easily separating and detaching the copper tube 2 from the fin group 1, and achieving comprehensive cleaning and maintenance of various components inside the evaporator, effectively solving the problem that traditional evaporators are difficult to clean due to their fixed structure.

[0037] like Figure 3 As shown, the evaporator also includes a cleaning mechanism 3 arranged on the windward and leeward sides of the fin group 1. The cleaning structure has a cleaning head 31 that can move along the length and width directions of the fin group 1. When the front aluminum sheet 11 and the rear aluminum sheet 12 move outward relative to the fin group 1, the cleaning head 31 cleans both sides of the front aluminum sheet 11 and the rear aluminum sheet 12 along their length direction.

[0038] The cleaning head 31 has the function of being able to move flexibly along the length and width direction of the fin group 1. The realization of this function relies on a set of precise motion control systems, which include components such as guide rails, screw rods 335 and drive motors. Through the control of the drive motor, the screw rods 335 can drive the cleaning head 31 to smoothly reciprocate in a straight line along the length direction of the fin group 1 on the guide rail; at the same time, with the help of another set of drive devices, the cleaning head 31 can be displaced along the width direction of the fin group 1 in a plane perpendicular to the length direction, thereby ensuring that the cleaning head 31 can cover all areas of the fin group 1.

[0039] When the front aluminum sheet 11 and the rear aluminum sheet 12 of the evaporator complete the displacement based on the freedom to move outward relative to the thickness direction of the fin group 1, the cleaning head 31 can perform all-round and fine cleaning operations on the two side surfaces of the front aluminum sheet 11 and the rear aluminum sheet 12 along their length direction. The cleaning method of the cleaning head 31 adopts an efficient physical cleaning principle, such as using high-speed rotating brushes, high-pressure air jets or ultrasonic vibrations and other technical means to effectively remove dust, impurities and other pollutants attached to the surface of the front aluminum sheet 11 and the rear aluminum sheet 12, restore their good heat exchange performance, and thus ensure the efficient operation of the evaporator and even the entire air source heat pump system.

[0040] like Figure 3 As shown, the evaporator also includes a guiding mechanism 4 arranged on the cleaning mechanism 3. Before the cleaning head 31 cleans, the guiding mechanism 4 drives the front aluminum sheet 11 and the rear aluminum sheet 12 corresponding to the cleaning head 31 to move to the outside of the fin group 1 to the cleaning area of ​​the cleaning head 31.

[0041] Before the cleaning head 31 starts cleaning, the guide mechanism 4 guides the front aluminum sheet 11 and the rear aluminum sheet 12 corresponding to the cleaning head 31 to move toward the outside of the fin group 1 along the thickness direction of the fin group 1 .

[0042] The stroke of the displacement process is fixed. When the front aluminum sheet 11 and the rear aluminum sheet 12 move to the preset cleaning area of ​​the cleaning head 31, the guide mechanism 4 stops running to ensure that the front aluminum sheet 11 and the rear aluminum sheet 12 are accurately positioned within the range of the cleaning head 31. In this way, the guide mechanism 4 can efficiently and reliably drive the front aluminum sheet 11 and the rear aluminum sheet 12 to the specified position, creating favorable conditions for the subsequent smooth cleaning work of the cleaning head 31, and effectively improving the overall efficiency and quality of the evaporator cleaning operation.

[0043] like Figure 4 and Figure 5 As shown, the evaporator also includes a positioning plate 5 arranged at the top and bottom ends of the fin group 1, and an elastic reset component 6 is arranged on the positioning plate 5. When the front aluminum plate and the rear aluminum plate move to the two sides of the fin group 1 respectively, the elastic force of the elastic reset component 6 needs to be overcome.

[0044] When the evaporator is in normal working state, the front aluminum plate and the rear aluminum plate are tightly attached to the fin group 1 under the action of the elastic reset component 6 to maintain a good heat exchange structure. When the evaporator needs to be cleaned or maintained, the front aluminum plate and the rear aluminum plate need to be moved to the two sides of the fin group 1 respectively, and their movement process needs to overcome the elastic force of the elastic reset component 6. In this process, external force acts on the front aluminum plate and the rear aluminum plate, causing them to displace, and the elastic reset component 6 undergoes elastic deformation due to the force, storing elastic potential energy. As the front aluminum plate and the rear aluminum plate gradually move away from the fin group 1, the elastic force of the elastic reset component 6 gradually increases, providing a power source for the subsequent reset process. When the external force is removed, the elastic reset component 6 releases the elastic force by virtue of the stored elastic potential energy, driving the front aluminum plate and the rear aluminum plate to quickly and accurately return to their initial position, ensuring the integrity and stability of the evaporator structure, and laying a solid foundation for the efficient operation of the evaporator.

[0045] like Figure 7 and Figure 8 As shown, the cleaning mechanism 3 includes a longitudinal frame 32 that can move laterally outside the fin group 1, and a cleaning head 31 is arranged on the longitudinal frame 32 for longitudinal movement. When the cleaning head 31 moves along its length direction on the longitudinal frame 32, the cleaning head 31 cleans both sides of the front fins and the rear fins.

[0046] The cleaning mechanism 3 also includes a screw rod 335 laterally arranged on the outside of the fin group 1 and a transverse driving motor 336 for driving the screw rod 335 to rotate. The screw rod 335 passes through the longitudinal frame 32 and is connected to the thread. When the transverse driving motor 336 is started, the longitudinal frame 32 can move laterally on the outside of the fin group 1.

[0047] The cleaning head 31 is disposed on the longitudinal frame 32 in a longitudinally movable manner, and is connected to the longitudinal frame 32 through a precise linear slide rail, so that the cleaning head 31 can perform precise linear motion along the length direction of the longitudinal frame 32. The cleaning function of the cleaning head 31 is realized through a variety of cleaning methods, such as using a high-speed rotating brush, high-pressure air jet or ultrasonic vibration and other technical means to perform all-round and fine cleaning operations on both sides of the front fins and the rear fins, effectively removing dust, impurities and other contaminants attached to the fin surface, and restoring the good heat exchange performance of the fins.

[0048] The screw rod 335 is arranged transversely on the outside of the fin group 1. It serves as a transmission component for the transverse movement of the longitudinal frame 32, penetrates the longitudinal frame 32 and forms a threaded connection therewith. The screw rod 335 adopts a high-precision ball screw, which has the advantages of high transmission efficiency, accurate positioning accuracy, and low friction. The transverse drive motor 336 is used to drive the screw rod 335 to rotate. The motor is usually a servo motor, which can achieve precise speed control and position positioning. When the transverse drive motor 336 is started, the rotational power output by the motor is transmitted to the screw rod 335 through the coupling, and the rotational motion of the screw rod 335 is converted into the linear motion of the longitudinal frame 32, so that the longitudinal frame 32 can move transversely on the outside of the fin group 1 according to a preset trajectory. During the entire cleaning process, the control system coordinates the transverse drive motor 336 and the longitudinal movement drive device of the cleaning head 31 to achieve comprehensive cleaning of each area of ​​the fin group 1 by the cleaning head 31, ensuring that the evaporator is always in an efficient working state.

[0049] like Fig. 9 and Fig.10 As shown, the cleaning head 31 includes a cleaning box 311 and two cleaning rollers 312 arranged in the cleaning box 311. The cleaning box 311 is provided with an insertion port 3111 whose diameter is larger than the thickness of the fin. When the front aluminum plate and the rear aluminum plate move to the outside of the fin group 1, they are inserted into the insertion port 3111. When the cleaning box 311 moves along the length direction of the fin, the two cleaning rollers 312 rotate to clean the surface of the front aluminum sheet 11 and the rear aluminum sheet 12.

[0050] The cleaning box 311 is provided with an insertion port 3111, the diameter of which is larger than the thickness of the fins. This allows the front aluminum plate and the rear aluminum plate to be smoothly and accurately inserted into the insertion port 3111 when they are moved to the outside of the fin group 1 based on the displacement mechanism of the evaporator. This close fit not only ensures the relative position stability of the front aluminum plate and the rear aluminum plate and the cleaning head 31 during the cleaning process, but also provides the prerequisite for efficient cleaning.

[0051] The two cleaning rollers 312 inside the cleaning box 311 are usually made of flexible and high-friction materials, such as special rubber or fiber composite materials. During the cleaning operation, when the cleaning box 311 moves along the length direction of the fin, the two cleaning rollers 312 are rotated by an independent drive motor or indirectly driven by the moving drive of the cleaning box 311. The rotation direction of the cleaning roller 312 cooperates with the moving direction of the cleaning box 311 to form an efficient cleaning mode. During the rotation process, the surface of the cleaning roller 312 is in close contact with the surface of the front aluminum sheet 11 and the rear aluminum sheet 12, and the dust, dirt and other impurities attached to the surface of the aluminum sheet are effectively peeled off by friction, thereby achieving deep cleaning of the surface of the front aluminum sheet 11 and the rear aluminum sheet 12, restoring its good heat exchange performance, and ensuring the efficient operation of the evaporator. At the same time, the rotation speed of the cleaning roller 312 and the moving speed of the cleaning box 311 can be accurately adjusted by the control system to adapt to different cleaning needs and working conditions.

[0052] like Fig.10 As shown, a gear 313 is provided at one end of the cleaning roller 312, and the longitudinal frame 32 includes two gear rods 321 extending along the length direction of the fin. The gear rods 321 penetrate the cleaning box 311 and mesh with the gear 313. When the cleaning box 311 moves along the length direction of the gear rods 321, the two cleaning rollers 312 rotate to clean the surfaces of the front aluminum sheet 11 and the rear aluminum sheet 12.

[0053] When the cleaning box 311 moves along the length direction of the gear rod 321 based on the driving system of the cleaning mechanism 3, the linear movement of the cleaning box 311 is converted into the rotational movement of the cleaning roller 312 because the gear rod 321 is in a tight meshing state with the gear 313 at one end of the cleaning roller 312. In this transmission process, the two cleaning rollers 312 rotate synchronously, and with the clean material and texture on their surfaces, they fully contact and generate friction with the surfaces of the front aluminum sheet 11 and the rear aluminum sheet 12, thereby effectively removing various pollutants attached to the surface of the aluminum sheet, such as dust, oil, impurities, etc., and achieving efficient cleaning of the surfaces of the front aluminum sheet 11 and the rear aluminum sheet 12, ensuring that the heat exchange efficiency of the evaporator fins is not affected, and maintaining the stable operation of the air source heat pump system.

[0054] like Figure 7 As shown, a longitudinal drive motor 331 is provided at the top of the longitudinal frame 32, a guide wheel 332 is provided at the bottom of the longitudinal frame 32, a driving wheel 333 is provided on the output shaft of the longitudinal drive motor 331, a guide belt 334 is provided on the driving wheel 333 and the guide wheel 332, and the guide belt 334 is fixedly connected to the cleaning box 311. When the driving wheel 333 rotates, the guide belt 334 drives the cleaning box 311 to move on the longitudinal frame 32.

[0055] A guide wheel 332 is provided at the bottom end of the longitudinal frame 32. The guide wheel 332 is used to provide stable support and guidance for the guide belt 334, ensuring that the guide belt 334 maintains a correct track during operation to avoid problems such as deviation or distortion. The guide wheel 332 is made of a material with a low friction coefficient, such as an oil-containing bearing or a ceramic material, to reduce operating resistance and improve transmission efficiency.

[0056] A guide belt 334 is sleeved between the driving wheel 333 and the guide wheel 332. The guide belt 334 is a transmission component connecting the driving wheel 333 and the cleaning box 311. A high-strength, wear-resistant rubber synchronous belt or chain is usually selected. One section of the guide belt 334 is firmly fixed to the cleaning box 311 through a special connecting fixture to ensure that the movement of the belt can be accurately transmitted to the cleaning box 311 during the driving process.

[0057] When the longitudinal drive motor 331 is started, its output shaft drives the drive wheel 333 to start rotating, and the drive wheel 333 drives the guide belt 334 to perform circular motion by virtue of the friction between the drive wheel 333 and the guide belt 334. Since a section of the guide belt 334 is fixedly connected to the cleaning box 311, the cleaning box 311 can move smoothly along a predetermined track on the longitudinal frame 32 under the traction of the belt. Through the precise control of the longitudinal drive motor 331, the cleaning box 311 can be quickly and accurately positioned on the longitudinal frame 32, meeting the cleaning requirements of different positions of the evaporator fins, effectively improving the cleaning efficiency and quality, and ensuring the efficient operation of the evaporator.

[0058] like Fig.10 As shown, the cleaning mechanism 3 also includes a suction mechanism. A suction port 3112 is provided on the cleaning box 311 . The suction port 3112 is connected to the suction mechanism. When the cleaning roller 312 cleans the fin surface, the suction mechanism extracts dust in the cleaning box 311 .

[0059] When the cleaning roller 312 cleans the fin surface based on the transmission system of the cleaning mechanism 3, the friction between the cleaning roller 312 and the fin surface will cause the dust attached to the fin to fall off. At this time, the suction mechanism starts quickly, and under the negative pressure generated by the vacuum pump, the air in the cleaning box 311 is sucked into the suction port 3112 together with the fallen dust. The dust enters the filter component along the airflow duct along the airflow. The filter component uses a high-precision filter screen or filter element, which can effectively intercept dust particles and discharge the purified air to prevent dust from polluting the working environment again or causing damage to other parts of the evaporator. Through the coordinated work of the suction mechanism and the cleaning roller 312, the thoroughness of the cleaning of the evaporator fins is greatly improved, ensuring that the evaporator always maintains good heat exchange performance, thereby improving the overall operating efficiency of the air source heat pump system.

[0060] like Figure 6As shown, the elastic reset assembly 6 includes a driven seat 61 slidably arranged on the positioning plate 5, an elastic reset element 62 is arranged between the driven seat 61 and the positioning plate 5, and two connecting rods 63 are arranged on the driven plate and are respectively connected to the ends of the front aluminum plate and the rear aluminum plate in rotation; the guiding mechanism 4 includes a linear push rod arranged on the cleaning mechanism 3 and moving laterally with the cleaning head 31, and an abutment column 41 that can abut on the driven seat 61 is arranged on the output rod of the linear push rod.

[0061] Both ends of the front fin and the rear fin pass through the positioning plate 5 and are slidably engaged therewith.

[0062] Two connecting rods 63 are also provided on the driven seat 61, and the two connecting rods 63 are respectively connected to the ends of the front aluminum plate and the rear aluminum plate through high-precision rotating pairs. This rotating connection method not only ensures the flexibility of the front aluminum plate and the rear aluminum plate during movement, but also effectively transmits the force of the elastic reset component 6, ensuring that the front aluminum plate and the rear aluminum plate can be accurately reset when there is no external force.

[0063] The linear push rod can move synchronously with the cleaning head 31 in the lateral direction. This synchronous movement is achieved through the unified transmission system or precise control system of the cleaning mechanism 3 to ensure the consistency of the movement of the two. The abutment column 41 is installed on the output rod of the linear push rod. When the cleaning head 31 moves to a specific position and the front aluminum plate and the rear aluminum plate need to be displaced, the linear push rod is started, its output rod contracts, and the abutment column 41 accurately abuts against the driven seat 61. With the continuous action of the linear push rod, the abutment column 41 pushes the driven seat 61 to slide on the positioning plate 5, and then drives the front aluminum plate and the rear aluminum plate to move to the outside of the fin group 1 through the connecting rod 63, completing the preset displacement action and preparing for subsequent cleaning work. The entire guiding process realizes efficient and accurate operation through precise motion control and mechanical structure coordination, effectively improving the automation and reliability of the evaporator cleaning operation.

[0064] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A device for combining a steam compressor with an air source heat pump, comprising an evaporator, a heat exchanger, a compressor, an expansion valve and a four-way reversing valve, wherein the evaporator comprises a fin group and a copper tube that passes through the fin group transversely, and the fin group is composed of fins arranged at equal intervals, characterized in that: The fins include a front aluminum sheet and a rear aluminum sheet, and the copper tube is assembled between the front aluminum sheet and the rear aluminum sheet in a clamping manner. Semicircular groove structures that are in a chimeric state with the outer surface of the copper tube are respectively provided on the opposite sides of the front aluminum sheet and the rear aluminum sheet. Each group of front aluminum sheets and rear aluminum sheets has the freedom to move outward in the thickness direction relative to the fin group.

2. A device for combining a steam compressor with an air source heat pump according to claim 1, characterized in that: The evaporator also includes a cleaning mechanism arranged on the windward and leeward sides of the fin group. The cleaning structure has a cleaning head that can move along the length and width directions of the fin group. When the front aluminum sheet and the rear aluminum sheet move outward relative to the fin group, the cleaning head cleans both sides of the front aluminum sheet and the rear aluminum sheet along their length direction.

3. A device for combining a steam compressor with an air source heat pump according to claim 2, characterized in that: The evaporator also includes a guiding mechanism arranged on the cleaning mechanism. Before the cleaning head cleans, the guiding mechanism drives the front aluminum sheet and the rear aluminum sheet corresponding to the cleaning head to move to the outside of the fin group to the cleaning area of ​​the cleaning head.

4. A device for combining a steam compressor with an air source heat pump according to claim 3, characterized in that: The evaporator also includes positioning plates arranged at the top and bottom ends of the fin group, and elastic reset components are arranged on the positioning plates. When the front aluminum plate and the rear aluminum plate move to the two sides of the fin group respectively, the elastic force of the elastic reset components needs to be overcome.

5. A device for combining a steam compressor with an air source heat pump according to any one of claims 2 to 4, characterized in that: The cleaning mechanism comprises a longitudinal frame which can move laterally outside the fin group, and a cleaning head is arranged on the longitudinal frame for longitudinal movement. When the cleaning head moves along its length direction on the longitudinal frame, the cleaning head cleans both sides of the front fin and the rear fin.

6. A device for combining a steam compressor with an air source heat pump according to claim 5, characterized in that: The cleaning head includes a cleaning box and two cleaning rollers arranged in the cleaning box. The cleaning box is provided with an insertion port with a diameter larger than the thickness of the fin. When the front aluminum plate and the rear aluminum plate move to the outside of the fin group, they are inserted into the insertion port. When the cleaning box moves along the length direction of the fin, the two cleaning rollers rotate to clean the surface of the front aluminum plate and the rear aluminum plate.

7. A device for combining a steam compressor with an air source heat pump according to claim 6, characterized in that: A gear is provided at one end of the cleaning roller, and the longitudinal frame includes two gear rods extending along the length direction of the fin. The gear rods penetrate the cleaning box and mesh with the gears. When the cleaning box moves along the length direction of the gear rods, the two cleaning rollers rotate to clean the surfaces of the front aluminum sheet and the rear aluminum sheet.

8. A device for combining a steam compressor with an air source heat pump according to claim 5, characterized in that: A longitudinal drive motor is arranged at the top of the longitudinal frame, a guide wheel is arranged at the bottom of the longitudinal frame, a drive wheel is arranged on the output shaft of the longitudinal drive motor, a guide belt is sleeved on the drive wheel and the guide wheel, and the guide belt is fixedly connected to the cleaning box. When the drive wheel rotates, the guide belt drives the cleaning box to move on the longitudinal frame.

9. A device for combining a steam compressor with an air source heat pump according to claim 6, characterized in that: The cleaning mechanism also includes a suction mechanism. A suction port is provided on the cleaning box, and the suction port is connected with the suction mechanism. When the cleaning roller cleans the surface of the fin, the suction mechanism extracts dust in the cleaning box.

10. A device for combining a steam compressor with an air source heat pump according to claim 4, characterized in that: The elastic reset assembly includes a driven seat slidingly arranged on the positioning plate, an elastic reset element is arranged between the driven seat and the positioning plate, and two connecting rods are arranged on the driven plate, which are respectively rotatably connected to the ends of the front aluminum plate and the rear aluminum plate; the guiding mechanism includes a linear push rod arranged on the cleaning mechanism and moving laterally with the cleaning head, and an abutment column capable of abutting against the driven seat is arranged on the output rod of the linear push rod.

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