Integrated overhead refrigerating unit

Abstract

The invention relates to the technical field of refrigeration equipment, and discloses an integrated top-mounted refrigerating unit which comprises a top-mounted plate, a condenser and an inner fan, the condenser is arranged at the position, close to the right end, of the top of the top-mounted plate, and an outer fan is mounted at the left end of the condenser; an outer condenser and an evaporator are arranged in the condenser; a first lower air opening and a second lower air opening are formed in the right end of the top plate and located below the condenser. The inner fan is fixedly arranged near the right end of the bottom of the top plate, the inner fan internally comprises a humidifying device, a sterilizing mechanism and an air duct, the humidifying device is installed at the left end of the inner fan, the air duct is installed in the inner fan, the left end of the air duct is connected with an air outlet, the air outlet is formed in front of the left end of the inner fan, and the sterilizing mechanism is arranged at the right end in the inner fan. According to the integrated overhead refrigerating unit, efficient heat dissipation of the condenser is guaranteed, the operation efficiency of the unit is guaranteed, the air quality is improved, and sanitation of the refrigerating environment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and in particular to an integrated top-mounted refrigeration unit. Background Art

[0002] Refrigeration units are often used in some freezers to keep items cool and fresh. Existing refrigeration units for cold storage mostly adopt a split structure design. When installing the unit, you need to first fix the condensing unit on the outside of the cold storage box, and then hang the air cooler on the top of the box. Then use pipes to connect the condensing unit and the air cooler. Finally, evacuate the system, add fluorine, and start up the machine for debugging.

[0003] The application of refrigeration units is currently limited to temperature control, while external equipment solutions are mostly used to control humidity. This results in cumbersome installation, large space occupied by the warehouse, poor equipment integrity, and ultimately leads to high installation costs and inconvenient use. Therefore, it is necessary to design corresponding technical solutions to solve these problems. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides an integrated top-mounted refrigeration unit, which solves the technical problems of complicated installation, large storage space occupied, poor equipment integrity, high installation cost and inconvenient use.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: an integrated top-mounted refrigeration unit, comprising a top plate, a condenser and an internal fan, wherein the condenser is arranged near the top right end of the top plate, and an external fan is installed at the left end of the condenser; The interior of the condenser includes an external condenser and an evaporator; The right end of the top plate is provided with a downwind vent 1 and a downwind vent 2, and the downwind vent 1 and the downwind vent 2 are located below the condenser; The internal fan is fixedly arranged at the bottom near the right end of the top plate, and the interior of the internal fan includes a humidifying device, a sterilizing mechanism and a wind tube, the humidifying device is installed at the left end of the internal fan, the wind tube is installed inside the internal fan, the left end of the wind tube is connected to an air outlet, the air outlet is arranged in front of the left end of the internal fan, the sterilizing mechanism is arranged at the right end of the internal fan, the wind tube corresponds to the lower air outlet 1, and the sterilizing mechanism corresponds to the lower air outlet 2; A bottom frame is installed below the condenser, and inner grooves are arranged inside the bottom frame, which correspond to downwind outlet 1 and downwind outlet 2 respectively. A lifting handle is installed at the edge of the bottom frame, and a pulley block is installed at the left end of the bottom frame.

[0006] Preferably, the external fan includes a protective net, a mounting frame, a drive motor and wind blades. The mounting frame is welded and distributed around the protective net, the end of the mounting frame is bolted to the left side of the condenser, the drive motor is installed in the middle of the protective net, and the wind blades are installed around the inner output end of the drive motor; the protective net is used to safely protect the wind blades, the mounting frame is used to quickly disassemble and assemble the external fan, and the drive motor is used to drive and control multiple groups of wind blades to rotate and discharge air, thereby cooperating with the condenser to quickly cool down.

[0007] Preferably, the external condenser is in a U-shaped frame structure, a variable frequency compressor is provided on the inner side of the external condenser, a condensing tube is distributed inside the external condenser, a four-way valve and a high-pressure switch are connected to the pipeline between the variable frequency compressor and the condensing tube; the variable frequency compressor controls the speed of the compressor by frequency conversion technology, thereby adjusting the flow rate and pressure of the refrigerant, and the speed can be adjusted according to actual needs, which is more energy-efficient than traditional fixed-speed compressors and reduces energy consumption. By adjusting the speed, the variable frequency compressor can more accurately control the temperature of the refrigerated environment and maintain constant temperature conditions. The current of the variable frequency compressor is small when it starts, which reduces the impact on the power grid and equipment and extends the service life of the equipment. The speed of the variable frequency compressor changes smoothly during operation and the noise is relatively low, which improves the operating comfort of the equipment; the four-way valve is a control valve used to change the flow direction of the refrigerant, thereby realizing the switching of the cooling and heating functions. The four-way valve can It can change the flow direction of the refrigerant and switch the system between cooling and heating modes. It is suitable for equipment that requires both cooling and heating. Through the switching function of the four-way valve, the use of other valves and pipelines in the system can be reduced, the system design can be simplified, and reliability can be improved. The four-way valve makes the refrigerant flow smoother, reduces the resistance loss in the system, and improves the overall system operation efficiency; the high-pressure switch is a protective device used to monitor the high-pressure side pressure in the system. When the pressure exceeds the set value, it automatically cuts off the circuit or sends an alarm signal. When the system pressure is too high, the high-pressure switch will automatically cut off the power supply to the compressor to prevent the equipment from being damaged due to overpressure and protect the system safety. The high-pressure switch responds in time when the pressure is abnormal, avoiding system failures or accidents caused by excessive pressure, thereby improving the safety of the system. The high-pressure switch can be linked with the alarm system to send an alarm signal when the pressure is abnormal, reminding maintenance personnel to troubleshoot in time.

[0008] Preferably, an evaporation pipe is provided inside the evaporator, a condenser is distributed inside the evaporation pipe, an internal fan driving device is provided at the front right end of the evaporator, and an electronic expansion valve is connected to the front pipeline of the evaporation pipe.

[0009] Preferably, the pipeline between the external condenser and the evaporator is connected to a drive assembly and a control assembly, the pipeline at the drive assembly is connected to an electric ball valve, and the pipeline at the control assembly is connected to a liquid pipe solenoid valve.

[0010] Preferably, the sterilization mechanism includes a basic dust filter and an ultraviolet sterilization lamp, the ultraviolet sterilization lamp is installed inside the sterilization mechanism, the basic dust filter is installed at the bottom of the sterilization mechanism, and a metal filter is installed above the inside of the sterilization mechanism.

[0011] (III) Beneficial effects Compared with the prior art, the beneficial effects of the present invention are as follows: the unit adopts a top-mounted design, and integrates the external fan, condenser, internal fan and other components on the top plate, which makes maximum use of the space and is suitable for a refrigerated environment with limited space. The design of the external fan and condenser ensures efficient heat dissipation of the condenser and the operating efficiency of the unit. The multiple filtration and sterilization design of the internal fan improves the air quality and ensures the sanitation of the refrigerated environment. The external condenser and the evaporator are connected by a drive assembly and a control assembly, and are equipped with an electric ball valve and a liquid pipe solenoid valve, which realizes precise temperature and humidity control and intelligent management, and improves the stability and reliability of the unit operation. The evaporator is equipped with an evaporation pipe and is precisely controlled by an electronic expansion valve to ensure the refrigeration effect. The coordinated use of the variable frequency compressor and the condenser tube improves the refrigeration efficiency and energy efficiency ratio of the system. The protective net of the external fan and the filter net of the internal fan are designed to be detachable structures to facilitate daily maintenance and cleaning, thereby extending the service life of the unit. The setting of the four-way valve and the high-pressure switch, in conjunction with the work of the variable frequency compressor, can adjust the working state of the condenser to ensure that the system can operate stably under different working conditions, significantly improving the temperature and humidity control accuracy, air quality and system operation efficiency of the refrigerated environment, and providing a more reliable and efficient solution for refrigeration needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall front upper right three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the upper left three-dimensional structure of the overall front part of the present invention; Figure 3 It is a schematic diagram of the overall front lower left three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the outer structure of the external fan of the present invention; Figure 5 This is a schematic diagram of the inner structure of the external fan of the present invention; Figure 6 It is a schematic diagram of the front structure inside the condenser of the present invention; Figure 7 It is a schematic diagram of the internal rear structure of the condenser of the present invention; Figure 8 It is a schematic diagram of the internal structure of the internal fan of the present invention; Fig. 9 It is a schematic diagram of the structure of the evaporator of the present invention; Fig.10 This is a schematic diagram of the structure of the condenser bottom frame from the upper perspective of the present invention; Fig.11 It is a schematic structural diagram of the perspective below the bottom frame of the condenser of the present invention.

[0013] In the figure, 1, top plate; 11, downwind outlet 1; 12, downwind outlet 2; 13, bottom frame; 131, inner groove; 132, lifting handle; 133, pulley block; 2, condenser; 21, external fan; 211, protective net; 212, mounting frame; 213, driving motor; 214, wind blade; 22, external condenser; 221, variable frequency compressor; 222, four-way valve; 223, high-pressure switch; 23, evaporator; 230, condenser tube; 231, evaporation pipeline; 232, electronic expansion valve; 233, internal fan driving device; 24, driving assembly; 241, electric ball valve; 25, control assembly; 251, liquid pipe solenoid valve; 3, internal fan; 31, humidification device; 32, basic dust filter; 321, ultraviolet sterilization lamp; 322, sterilization mechanism; 33, air outlet; 331, air cylinder. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-Figure 11 , an embodiment of the present invention provides a technical solution: an integrated top-mounted refrigeration unit, comprising a top plate 1, a condenser 2 and an internal fan 3, wherein the condenser 2 is arranged at the top of the top plate 1 near the right end, and an external fan 21 is installed at the left end of the condenser 2; The interior of the condenser 2 includes an external condenser 22 and an evaporator 23; The right end of the top plate 1 is provided with a downwind port 11 and a downwind port 2 12, and the downwind port 1 11 and the downwind port 2 12 are located below the condenser 2; The internal fan 3 is fixedly arranged at the bottom near the right end of the top plate 1, and the interior of the internal fan 3 includes a humidifying device 31, a sterilizing mechanism 322 and a wind tube 331. The humidifying device 31 is installed at the left end of the internal fan 3, and the wind tube 331 is installed inside the internal fan 3. The left end of the wind tube 331 is connected to the air outlet 33, and the air outlet 33 is arranged in front of the left end of the internal fan 3. The sterilizing mechanism 322 is arranged at the right end of the interior of the internal fan 3. The wind tube 331 corresponds to the lower air outlet 11, and the sterilizing mechanism 322 corresponds to the lower air outlet 2 12. A bottom frame 13 is installed below the condenser 2, and inner grooves 131 are provided inside the bottom frame 13, and the inner grooves 131 correspond to the lower air outlet 11 and the lower air outlet 2 12 respectively. A lifting handle 132 is installed at the edge of the bottom frame 13, and a pulley block 133 is installed at the left end of the bottom frame 13, so that the bottom frame 13 can be carried by holding the lifting handle 132, and the disassembly and assembly are convenient, and the bottom frame 13 can be lifted and slid out through the pulley block 133, and the operation is simple.

[0016] The unit adopts a top-mounted design, integrating the external fan 21, condenser 2, internal fan 3 and other components on the top plate 1, making maximum use of space and being suitable for a refrigerated environment with limited space. The design of the external fan 21 and the condenser 2 ensures efficient heat dissipation of the condenser 2 and the operating efficiency of the unit. The multiple filtering and sterilization design of the internal fan 3 improves the air quality and ensures the hygiene of the refrigerated environment. The external condenser 22 and the evaporator 23 are connected by a drive assembly 24 and a control assembly 25, and are equipped with an electric ball valve 241 and a liquid pipe solenoid valve 251, which realize precise temperature and humidity control and intelligent management, and improve the stability and reliability of the unit operation. The evaporator 23 is provided with an evaporation pipe 241. The condenser 231 is precisely controlled by the electronic expansion valve 232 to ensure the refrigeration effect. The use of the variable frequency compressor 221 and the condenser 230 improves the refrigeration efficiency and energy efficiency ratio of the system. The protective net 211 of the external fan 21 and the filter net of the internal fan 3 are designed to be detachable, which is convenient for daily maintenance and cleaning and prolongs the service life of the unit. The setting of the four-way valve 222 and the high-pressure switch 223, in conjunction with the work of the variable frequency compressor 221, can adjust the working state of the condenser 2 to ensure that the system can operate stably under different working conditions, significantly improve the temperature and humidity control accuracy, air quality and system operation efficiency of the refrigerated environment, and provide a more reliable and efficient solution for refrigeration needs.

[0017] Further improved, the external fan 21 includes a protective net 211, a mounting frame 212, a driving motor 213 and a wind blade 214, the mounting frame 212 is welded and distributed around the protective net 211, the end of the mounting frame 212 is bolted to the left side of the condenser 2, the driving motor 213 is installed in the middle of the protective net 211, and the wind blade 214 is installed around the inner output end of the driving motor 213; The protection net 211 is used for safely protecting the wind blades 214, the mounting frame 212 is used for quickly disassembling and assembling the external fan 21, and the driving motor 213 is used for driving and controlling the plurality of wind blades 214 to rotate and discharge air, so as to cooperate with the condenser 2 to quickly cool down.

[0018] In a further improvement, the outer condenser 22 is a U-shaped frame structure, a variable frequency compressor 221 is provided on the inner side of the outer condenser 22, a condenser pipe 230 is distributed inside the outer condenser 22, and a four-way valve 222 and a high-pressure switch 223 are connected to the pipeline between the variable frequency compressor 221 and the condenser pipe 230; The variable frequency compressor 221 controls the speed of the compressor through the variable frequency technology, thereby adjusting the flow and pressure of the refrigerant. The speed can be adjusted according to actual needs, which is more energy-saving than the traditional fixed speed compressor and reduces energy consumption. By adjusting the speed, the variable frequency compressor 221 can more accurately control the temperature of the refrigerated environment and maintain a constant temperature condition. The variable frequency compressor 221 has a small current when starting, which reduces the impact on the power grid and equipment and extends the service life of the equipment. The variable frequency compressor 221 has a smooth speed change when running, and the noise is relatively low, which improves the operating comfort of the equipment. The four-way valve 222 is a control valve used to change the flow direction of the refrigerant, thereby realizing the switching of the cooling and heating functions. The four-way valve 222 can change the flow direction of the refrigerant, so that the system switches between the cooling and heating modes. It is suitable for equipment that needs both cooling and heating. Through the switching function of the four-way valve 222, the use of other valves and pipelines in the system can be reduced, the system design can be simplified, and the reliability can be improved. The four-way valve 222 makes the refrigerant flow smoother, reduces the resistance loss in the system, and improves the operating efficiency of the overall system; The high-pressure switch 223 is a protective device used to monitor the high-pressure side pressure in the system. When the pressure exceeds the set value, the circuit is automatically cut off or an alarm signal is issued. When the system pressure is too high, the high-pressure switch 223 will automatically cut off the power supply of the compressor to prevent the equipment from being damaged due to overpressure and protect the system safety. The high-pressure switch 223 responds in time when the pressure is abnormal to avoid system failures or accidents caused by excessive pressure, thereby improving the safety of the system. The high-pressure switch 223 can be linked with the alarm system to issue an alarm signal when the pressure is abnormal, reminding maintenance personnel to eliminate the fault in time; These components work together to ensure the efficient, safe and stable operation of the constant temperature and humidity refrigeration unit.

[0019] As a further improvement, an evaporation pipe 231 is provided inside the evaporator 23, a condenser pipe 230 is distributed inside the evaporation pipe 231, an internal fan driving device 233 is provided at the front right end of the evaporator 23, and an electronic expansion valve 232 is connected to the front pipeline of the evaporation pipe 231; Multiple groups of array-distributed condensing tubes 230 greatly improve the refrigeration efficiency. The internal fan driving device 233 is used to drive and control the internal fan 3. The electronic expansion valve 232 accurately controls the refrigerant flow rate and can adjust the refrigerant flow rate in real time according to the temperature and pressure of the refrigeration environment to ensure the efficient operation of the refrigeration system. Through the cooperation of the sensor and the controller, the electronic expansion valve 232 can accurately adjust the amount of refrigerant flowing through the evaporation pipe, thereby maintaining the appropriate temperature in the evaporation pipe. The electronic expansion valve 232 can quickly respond to load changes, optimize the supply of refrigerant, reduce energy losses in the system, and improve overall efficiency. Compared with traditional mechanical expansion valves, the adjustment of the electronic expansion valve 232 is more flexible and precise, and can maintain the optimal performance of the system under different working conditions. Through precise control The flow rate of the refrigerant, the electronic expansion valve 232 can maintain the stable working state of the evaporation pipe, avoid overcooling or overheating in the evaporation pipe 231, help to improve the heat exchange efficiency of the evaporation pipe 231, ensure the stability and reliability of the refrigeration system, and can adjust the refrigerant flow rate according to actual needs to avoid excessive supply of refrigerant, thereby reducing the workload of the compressor and saving energy. By optimizing the use of refrigerant, the electronic expansion valve 232 can significantly reduce the energy consumption of the system and improve economic benefits. Since the electronic expansion valve 232 can accurately control the flow rate and pressure of the refrigerant, the pressure fluctuation and thermal shock in the system are reduced, and the service life of the compressor and other components is extended. The stable operating conditions also reduce the wear and failure rate of the equipment and reduce the maintenance cost.

[0020] In a further improvement, the pipeline between the external condenser 22 and the evaporator 23 is connected with a drive assembly 24 and a control assembly 25, the pipeline at the drive assembly 24 is connected with an electric ball valve 241, and the pipeline at the control assembly 25 is connected with a liquid pipe solenoid valve 251; The drive assembly 24 and the control assembly 25 are used to drive and control the direction of the liquid in the pipeline between the external condenser 22 and the evaporator 23. The electric ball valve 241 and the liquid pipe solenoid valve 251 are both used to control the output. The electric ball valve 241 is mainly used to accurately control the refrigerant flow, realize automation and remote control, and quickly respond to system adjustment needs. The liquid pipe solenoid valve 251 is mainly used to control the flow of liquid refrigerant, realize system mode switching, protect system safety, and improve system reliability.

[0021] Specifically, the sterilization mechanism 322 includes a basic dust filter 32 and an ultraviolet sterilization lamp 321, the ultraviolet sterilization lamp 321 is installed inside the sterilization mechanism 322, the basic dust filter 32 is installed at the bottom of the sterilization mechanism 322, and a metal filter is installed above the inside of the sterilization mechanism 322; The basic dust filter 32 is a primary filtering device for filtering larger particles in the air. The basic dust filter 32 can effectively capture large particles in the air, such as dust, fibers, hair, etc., to prevent these particles from entering the system. By removing large particles, the basic dust filter 32 reduces the load on subsequent filtering devices, extends their service life, and improves the efficiency of the overall filtering system. The primary filtering effect of the basic dust filter 32 can significantly improve the cleanliness of the air, improve the air quality in the refrigerated environment, and help maintain the hygiene of stored items such as food. The metal filter is a filtering device with an adsorption function, which is used to remove gaseous pollutants in the air. It can effectively adsorb harmful gases and odors in the air, such as volatile organic compounds (VOCs), ozone, ammonia, etc., to improve the freshness of the air. Activated carbon has With strong adsorption capacity, it can absorb and remove odors in the air, keep the air in the refrigerated environment fresh, and prevent stored items from being affected by odors. By adsorbing and removing harmful gases and odors in the air, the metal filter significantly improves the air quality in the refrigerated environment, providing a cleaner and safer storage environment. The ultraviolet germicidal lamp 321 is a device that kills microorganisms and bacteria in the air through ultraviolet radiation. It can effectively kill bacteria, viruses, molds and other microorganisms in the air to prevent them from multiplying and spreading in the refrigerated environment. By regularly disinfecting the air with ultraviolet rays, the ultraviolet germicidal lamp 321 can prevent microbial contamination in the refrigerated environment, ensure the hygiene and safety of stored items, help reduce the number of pathogenic microorganisms in the air, reduce the risk of pathogenic microorganisms, and provide a healthier air quality for the refrigerated environment.

[0022] The whole machine is designed in an integrated way, with integrated temperature and humidity control system, which solves the problem of external equipment and complicated installation.

[0023] The required humidity is collected through the humidity collection in the warehouse. When the system determines that the set humidity is greater than the actual humidity by 2%, the purified water and ultrasonic humidification nozzle installed in the equipment are powered on and pumped into the warehouse for humidification through the internal fan 3 to achieve RH50%-99% control.

[0024] The required humidity is collected through the humidity collection in the warehouse. When the system determines that the set humidity is less than the actual humidity by 2%, an inner duct condenser 2 is installed in the equipment. The circulating air in the warehouse is first heated by condenser 2, and then cooled by evaporation pipe 231. The temperature difference cools the circulating air to form condensed water which is discharged outside the warehouse, thereby achieving a dehumidification effect and realizing rh50%-99% control.

[0025] The top plate 1 of the present invention, the downwind outlet 1 11, the downwind outlet 2 12, the bottom frame 13, the inner groove 131, the lifting handle 132, the pulley block 133, the condenser 2, the external fan 21, the protective net 211, the mounting frame 212, the drive motor 213, the wind blade 214, the external condenser 22, the variable frequency compressor 221, the four-way valve 222, the high-pressure switch 223, the evaporator 23, the condenser tube 230, the evaporation pipeline 231, the electronic expansion valve 232, the internal fan drive device 233, the drive assembly 24, the electric ball valve 241, the control assembly 25, the liquid pipe solenoid valve 251, the internal fan 3, the humidification device 31, the base The dust filter 32, the ultraviolet sterilization lamp 321, the sterilization mechanism 322, the air outlet 33, and the air cylinder 331 are all universal standard parts or parts known to those skilled in the art. The structure and principle thereof are known to those skilled in the art through technical manuals or conventional experimental methods. The problem solved by the present invention is that the installation is cumbersome, the storage body occupies a large space, the equipment integrity is poor, the installation cost is high, and the use is inconvenient. The present invention combines the above-mentioned parts with each other. The unit adopts a top-mounted design, and the external fan 21, the condenser 2, the internal fan 3 and other components are integrated on the top plate 1, which makes maximum use of the space and is suitable for In a refrigerated environment with limited space, the design of the external fan 21 and the condenser 2 ensures efficient heat dissipation of the condenser 2 and the operating efficiency of the unit. The multiple filtration and sterilization design of the internal fan 3 improves the air quality and ensures the hygiene of the refrigerated environment. The external condenser 22 and the evaporator 23 are connected through the drive assembly 24 and the control assembly 25, and are equipped with an electric ball valve 241 and a liquid pipe solenoid valve 251, which realizes precise temperature and humidity control and intelligent management, and improves the stability and reliability of the unit operation. The evaporator 23 is provided with an evaporation pipe 231 and is precisely controlled by an electronic expansion valve 232 to ensure the refrigeration efficiency. The coordinated use of the variable frequency compressor 221 and the condenser 230 improves the refrigeration efficiency and energy efficiency ratio of the system. The protective net 211 of the external fan 21 and the filter net of the internal fan 3 are designed to be detachable structures, which are convenient for daily maintenance and cleaning and extend the service life of the unit. The setting of the four-way valve 222 and the high-pressure switch 223, in conjunction with the operation of the variable frequency compressor 221, can adjust the working state of the condenser 2 to ensure that the system can operate stably under different working conditions, significantly improving the temperature and humidity control accuracy, air quality and system operation efficiency of the refrigerated environment, and providing a more reliable and efficient solution for refrigeration needs.

[0026] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An integrated top-mounted refrigeration unit, comprising a top plate (1), a condenser (2) and an internal fan (3), characterized in that: The condenser (2) is arranged near the right end of the top of the top plate (1), and an external fan (21) is installed at the left end of the condenser (2); The interior of the condenser (2) includes an external condenser (22) and an evaporator (23); A downwind vent 1 (11) and a downwind vent 2 (12) are provided at the right end of the top plate (1), and the downwind vent 1 (11) and the downwind vent 2 (12) are located below the condenser (2); The internal fan (3) is fixedly arranged at the bottom of the top plate (1) near the right end, and the interior of the internal fan (3) includes a humidifying device (31), a sterilizing mechanism (322) and a wind tube (331). The humidifying device (31) is installed at the left end of the internal fan (3), and the wind tube (331) is installed inside the internal fan (3). The left end of the wind tube (331) is connected to an air outlet (33), and the air outlet (33) is arranged in front of the left end of the internal fan (3). The sterilizing mechanism (322) is arranged at the right end inside the internal fan (3). The wind tube (331) corresponds to the lower air outlet 1 (11), and the sterilizing mechanism (322) corresponds to the lower air outlet 2 (12). A bottom frame (13) is installed below the condenser (2), and an inner groove (131) is provided inside the bottom frame (13), and the inner groove (131) corresponds to the lower air outlet 1 (11) and the lower air outlet 2 (12), respectively. A lifting handle (132) is installed at the edge of the bottom frame (13), and a pulley block (133) is installed at the left end of the bottom frame (13).

2. The integrated top-mounted refrigeration unit according to claim 1, characterized in that: The external fan (21) comprises a protective net (211), a mounting frame (212), a driving motor (213), and wind blades (214); the mounting frame (212) is welded and distributed around the protective net (211); an end of the mounting frame (212) is connected to the left side of the condenser (2) by bolts; the driving motor (213) is installed in the middle of the protective net (211); and the wind blades (214) are installed around the inner output end of the driving motor (213).

3. The integrated top-mounted refrigeration unit according to claim 1, characterized in that: The external condenser (22) is in a U-shaped frame structure, a variable frequency compressor (221) is provided on the inner side of the external condenser (22), a condenser tube (230) is distributed inside the external condenser (22), and a four-way valve (222) and a high-pressure switch (223) are connected to the pipeline between the variable frequency compressor (221) and the condenser tube (230).

4. The integrated top-mounted refrigeration unit according to claim 1, characterized in that: An evaporation pipe (231) is provided inside the evaporator (23), a condenser pipe (230) is distributed inside the evaporation pipe (231), an internal fan drive device (233) is provided at the front right end of the evaporator (23), and an electronic expansion valve (232) is connected to the front pipeline of the evaporation pipe (231).

5. The integrated top-mounted refrigeration unit according to claim 1, characterized in that: The pipeline between the external condenser (22) and the evaporator (23) is connected to a drive assembly (24) and a control assembly (25); the pipeline at the drive assembly (24) is connected to an electric ball valve (241); and the pipeline at the control assembly (25) is connected to a liquid pipe solenoid valve (251).

6. The integrated top-mounted refrigeration unit according to claim 1, characterized in that: The sterilization mechanism (322) comprises a basic dust filter (32) and an ultraviolet sterilization lamp (321); the ultraviolet sterilization lamp (321) is installed inside the sterilization mechanism (322); the basic dust filter (32) is installed at the bottom of the sterilization mechanism (322); and a metal filter is installed above the inside of the sterilization mechanism (322).

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