Box type cold storage matching photovoltaic direct drive variable frequency refrigeration unit

Abstract

The application relates to the technical field of box-type refrigeration equipment, in particular to a box-type refrigeration house matched photovoltaic direct-drive variable-frequency refrigeration unit. The device comprises a box-type refrigeration equipment, a supporting rack, a rotating disc, a circular ring supporting frame, a mounting ball, a sliding assembly, an extension rod, a connecting assembly and a folding power generation mechanism. The folding power generation mechanism realizes photovoltaic power generation through an expansion assembly, and can flexibly adjust the angle and position of the photovoltaic frame, so as to improve the photoelectric conversion efficiency. In addition, the device is also provided with an electricity storage mechanism, which can continue to supply power when the illumination is insufficient, and ensures the stable operation of the refrigeration equipment group. The application achieves the effects of optimizing energy utilization, reducing energy consumption, improving system reliability and flexibility.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of box-type refrigeration unit, in particular to a box-type refrigeration house matched with photovoltaic direct-drive variable frequency refrigeration unit. BACKGROUND

[0002] Box-type refrigeration house plays an important role in modern cold chain logistics and food preservation field. With the rise of energy costs and the enhancement of environmental awareness, more and more enterprises begin to seek energy-saving and efficient refrigeration solutions. Traditional box-type refrigeration house usually relies on mains power supply, which has high energy consumption and expensive operation cost. In order to reduce operating costs and reduce carbon emissions, in recent years, various refrigeration units using renewable energy have appeared, among which photovoltaic direct-drive technology has attracted widespread attention due to its high efficiency and economy.

[0003] At present, in the implementation of photovoltaic direct-drive refrigeration unit, the common design scheme mainly includes fixed solar cell panel and manually adjusted photovoltaic support. Although the fixed solar cell panel is simple to install, it cannot automatically adjust the angle according to the change of sunlight, resulting in low photoelectric conversion efficiency. The manually adjusted photovoltaic support needs frequent manual operation, which is inconvenient to maintain and prone to failure. In addition, some schemes use simple mechanical structures to realize the angle adjustment of photovoltaic panels, but the adaptability and stability in complex environment are still insufficient. Especially in the four seasons and day and night changes, the existing photovoltaic components are difficult to effectively respond to the change of sunlight due to the small variable angle, which further limits the power generation efficiency.

[0004] For the related technologies in the above, the inventor believes that the main problem faced by the existing photovoltaic direct-drive refrigeration unit in actual application is that the installation and adjustment mode of the photovoltaic component is not flexible enough, which is difficult to dynamically adjust according to different time periods and weather conditions, thereby affecting the power generation efficiency and reliability of the whole system. Especially in complex and changeable environment, how to ensure that the photovoltaic system is always in the best working state and effectively prolong the working life of the photovoltaic panel is a technical problem to be solved. SUMMARY

[0005] In order to solve the above problems, the present application provides a box-type refrigeration house matched with photovoltaic direct-drive variable frequency refrigeration unit.

[0006] The box-type refrigeration house matched with photovoltaic direct-drive variable frequency refrigeration unit provided by the present application adopts the following technical scheme:

[0007] The application discloses a box-type freezer matched with a photovoltaic direct-drive variable-frequency refrigeration unit, which comprises a box-type freezer, a supporting frame arranged on the box-type freezer, a bearing mechanism, a adjusting mechanism and a folding power generation mechanism.

[0008] By adopting the technical scheme, the box-type freezer matched with the photovoltaic direct-drive variable-frequency refrigeration unit not only realizes efficient and stable photovoltaic power generation function, but also can flexibly adjust and photovoltaic components. Specifically, the design of the supporting frame and the rotating disc makes the whole system adapt to different illumination angles, thereby improving the photoelectric conversion efficiency; meanwhile, the cooperation design of the hemispherical groove and the mounting ball ensures that the photovoltaic components are 360-degree omnidirectional adjustable, can adapt to the direction change of the sun, adjust the photovoltaic panel to the corresponding position along with the change of the sun in four seasons and day and night, and can stop photovoltaic power generation by folding the power generation mechanism when overall power generation is not needed, thereby prolonging the service life of the photovoltaic panel as much as possible. In addition, the sliding assembly and the telescopic rod in the adjusting mechanism can realize accurate position adjustment, thereby further optimizing the light energy utilization effect. The folding power generation mechanism can also effectively solve the space occupation problem, and improve the overall integration and portability of the equipment.

[0009] Preferably, the connecting assembly comprises a connecting groove arranged on the mounting ball, a connecting ball slidably connected in the connecting groove, an installation rod arranged on the connecting ball and connected with the telescopic rod.

[0010] By adopting the technical scheme, the connecting assembly makes the connection between the mounting ball and the telescopic rod more flexible and reliable. Specifically, the connecting ball in the connecting groove can realize multidirectional rotation, thereby ensuring stable connection under different angles, adjusting and maintaining the position of the photovoltaic components, utilizing photovoltaic power generation and reducing the energy consumption of the refrigeration unit, thereby improving the adaptability and stability of the whole system. Meanwhile, the installation rod further enhances the connection strength, thereby ensuring the stability of the structure under various working conditions.

[0011] Preferably, the folding power generation mechanism comprises a connecting frame arranged on the mounting ball, a photovoltaic frame, a first photovoltaic component arranged at the end of the photovoltaic frame away from the supporting frame and a plurality of expansion assemblies arranged on the photovoltaic frame.

[0012] By adopting the technical scheme, the folding power generation mechanism can be stably fixed and adjusted on the installation ball, and the photovoltaic assembly can effectively receive sunlight at different angles. The first photovoltaic assembly can directly generate photovoltaic power, and the energy utilization efficiency is improved. Meanwhile, the design of the expansion assembly enables the photovoltaic frame to further increase the photovoltaic area. When the light area is large and the light intensity is high, the expansion assembly can be expanded to improve the overall power generation capacity, so as to better meet the power demand of the box-type cold storage, and the excess power can be stored. In the case of adverse weather such as sandstorm and rainstorm, the surrounding expansion assembly can be retracted to prevent the expansion solar panel from being damaged by adverse weather, and the position can be adjusted to enable part of the photovoltaic panel to be in the working state and part of the photovoltaic panel to be in the non-working state, so as to alternately work and prolong the service life of the photovoltaic panel.

[0013] Preferably, the expansion assembly comprises a rotating gear ring rotatably connected to the photovoltaic frame, and an expansion driving assembly connected to the rotating gear ring, wherein the expansion driving assembly is arranged on the photovoltaic frame, a driving plate is coaxially arranged on the rotating gear ring, a plurality of guide holes are uniformly distributed on the driving plate, and an expansion component is arranged on the guide hole.

[0014] By adopting the technical scheme, the cooperation of the rotating gear ring and the expansion driving assembly enables the expansion component on the photovoltaic frame to realize accurate expansion and folding actions, and improves the working efficiency and reliability of the photovoltaic assembly. By using the gear ring, the expansion component can move together. By rotating the gear ring, the expansion component can be expanded or retracted. Meanwhile, the design of the guide hole ensures the stability and consistency of the expansion component during movement, and further improves the overall performance of the system.

[0015] Preferably, the expansion component comprises a guide rod arranged in the guide hole, one end of the guide rod is provided with a blocking block, the other end of the guide rod is provided with a guide block, a guide rail is arranged on the photovoltaic frame, the guide block is slidably connected to the guide rail, and a second photovoltaic assembly is arranged on the guide block.

[0016] By adopting the technical scheme, the design of the guide rod and the blocking block effectively prevents the guide block from falling out of the guide hole during movement, and ensures the stability and reliability of the structure. The cooperation of the guide block and the guide rail not only confirms the expansion direction, but also enables the expansion component to move smoothly on the photovoltaic frame, and improves the flexibility and efficiency of the photovoltaic power generation area. The arrangement of the second photovoltaic assembly further increases the power generation capacity of the photovoltaic system, and improves the energy utilization efficiency of the overall device.

[0017] Preferably, the guide hole enables the guide block to move along the guide rail.

[0018] By adopting the above technical scheme, the design of the guide hole enables the guide block to move linearly along the guide rail accurately, thereby ensuring the stability and accuracy of the expansion component during the expansion and retraction process. This design not only improves the expansion efficiency of the photovoltaic component, but also enhances the reliability and service life of the system.

[0019] Preferably, the expansion drive assembly includes an expansion motor arranged on the photovoltaic frame, and an expansion gear arranged at the transmission end of the expansion motor, which is engaged with an expansion gear ring.

[0020] By adopting the above technical scheme, the expansion motor can drive the expansion gear to rotate, thereby driving the expansion gear ring engaged therewith to rotate. This design enables the guide hole on the drive plate to guide the guide rod to move linearly along the guide rail accurately, ensuring that each guide block and the second photovoltaic component thereon can be smoothly expanded or retracted. This structure not only improves the working efficiency and stability of the photovoltaic component, but also effectively protects the safety of the photovoltaic component in the non-working state and prolongs the service life.

[0021] Preferably, the sliding assembly includes two sets of connecting seats arranged on the rotating disc, an adjustment screw rod arranged between the two sets of connecting seats, an adjustment drive assembly arranged at one end of the adjustment screw rod, an adjustment sliding block screw transmission connected to the adjustment screw rod, and a positioning rod arranged between the two sets of connecting seats, the adjustment sliding block being slidingly connected to the positioning rod, and the telescopic rod being arranged on the adjustment sliding block.

[0022] By adopting the above technical scheme, the design of the sliding assembly enables the adjustment mechanism to accurately control the position and angle of the mounting ball. Specifically, the cooperation of the connecting seat and the adjustment screw rod ensures that the adjustment sliding block can move smoothly under the guidance of the positioning rod, thereby achieving accurate adjustment of the position of the mounting ball. This design not only improves the overall stability of the device, but also enhances the angle adjustability of the photovoltaic component, enabling it to capture sunlight more effectively and improve photovoltaic power generation efficiency. At the same time, the addition of the adjustment drive assembly further simplifies the operation process and improves the automation level of the system.

[0023] Preferably, the telescopic rod includes a sleeve arranged on the adjustment sliding block, a sliding plate slidingly connected in the sleeve, a sliding rod arranged on the sliding plate, and the sliding rod being connected to the mounting rod.

[0024] By adopting the above technical scheme, the design of the telescopic rod enables the position of the mounting ball to be adjusted flexibly, thereby ensuring that the photovoltaic component can obtain the best angle under different lighting conditions and improving the photovoltaic power generation efficiency. At the same time, the structural design of the sliding plate and the sliding rod increases the stability and reliability of the system, effectively reduces mechanical failures caused by external vibration or wind force, and prolongs the service life of the equipment.

[0025] Specifically, the application further comprises an electricity storage mechanism arranged in the box-type refrigerator.

[0026] By adopting the above technical solutions, the telescopic rod structure design enables the installation ball to be flexibly adjusted at different positions, thereby adapting to different light angles and environmental conditions and improving the photovoltaic power generation efficiency. Meanwhile, the electricity storage mechanism can effectively store excess electricity, ensuring that the refrigerator unit can still be provided with stable power supply when the light is insufficient, thereby further improving the reliability and energy-saving effect of the system.

[0027] In summary, the application has at least one of the following beneficial technical effects:

[0028] By arranging the adjusting mechanism composed of the rotating disc, the sliding assembly and the telescopic rod, the photovoltaic assembly can be precisely adjusted at multiple angles, and the position can be automatically adjusted according to the change of sunlight, thereby significantly improving the photoelectric conversion efficiency. Specifically, the screw transmission design of the adjusting screw rod and the adjusting sliding block enables the telescopic rod to finely move in the horizontal direction, thereby driving the installation ball to slide in the hemispherical groove, and realizing the omnibearing angle adjustment of the photovoltaic assembly.

[0029] The design of the folding power generation mechanism allows the photovoltaic assembly to be folded and stored during the non-use period, thereby not only saving space but also effectively avoiding damage to the photovoltaic assembly in adverse weather, thereby prolonging the service life. The mechanism connects the photovoltaic frame and the installation ball through the connecting frame, and the guide hole and guide sliding rail design in the extension assembly ensure the stability and reliability of the photovoltaic assembly during the unfolding and folding processes.

[0030] The BWLS energy system management and AC / DC dual power seamless switching rely on solar technology for refrigeration and heating. The core algorithm automatically adjusts the input of alternating current mains according to the amount of photovoltaic power generation, and the light-heat energy efficiency is extremely high. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic diagram of an embodiment of the application;

[0032] Figure 2 is a structural schematic diagram of a sliding assembly of the application;

[0033] Figure 3 is a structural schematic diagram of a cross section of an embodiment of the application;

[0034] Figure 4 is an enlarged schematic diagram of A of Figure 3

[0035] Figure 5 is an enlarged schematic diagram of B of Figure 3

[0036] Figure 6 is​​Figure 5 Enlarged schematic view at C of Fig. 1.

[0037] Reference signs: 1, box freezer; 2, support frame; 3, bearing mechanism; 31, rotating disc; 32, circular ring support frame; 33, hemispherical groove; 34, mounting hole; 35, mounting ball; 4, adjusting mechanism; 41, sliding assembly; 411, connecting seat; 412, adjusting screw rod; 413, adjusting driving assembly; 414, adjusting sliding block; 415, positioning rod; 42, telescopic rod; 421, sleeve; 422, sliding plate; 423, sliding rod; 43, connecting assembly; 431, connecting groove; 432, connecting ball; 433, mounting rod; 5, folding power generation mechanism; 51, photovoltaic frame; 52, first photovoltaic assembly; 53, expansion assembly; 531, rotating gear ring; 532, expansion driving assembly; 5321, expansion motor; 5322, expansion gear; 533, driving plate; 534, guide hole; 535, expansion component; 5351, guide rod; 5352, blocking block; 5353, guide block; 5354, guide slide rail; 5355, second photovoltaic assembly. DETAILED DESCRIPTION

[0038] The following will be described in detail in combination with the accompanying drawings. Figures 1-6 The application is further described in detail.

[0039] The embodiment of the application discloses a box freezer matched photovoltaic direct-drive variable-frequency freezer unit, referring to Figure 1 , comprising a box freezer 1, a support frame 2, a bearing mechanism 3, an adjusting mechanism 4 and a folding power generation mechanism 5. The support frame 2 is arranged on the box freezer 1, the bearing mechanism 3 comprises a rotating disc 31 rotatably connected to the support frame 2, the rotating disc 31 is connected with a rotating driving assembly, further comprising a circular ring support frame 32 arranged on the support frame 2, the circular ring support frame 32 is provided with a hemispherical groove 33, the bottom of the hemispherical groove 33 is provided with a mounting hole 34, and the hemispherical groove 33 is slidably connected with a mounting ball 35. The adjusting mechanism 4 comprises a sliding assembly 41 arranged on the rotating disc 31, the sliding assembly 41 is provided with a telescopic rod 42 at a movement end, and the telescopic rod 42 is connected to the mounting ball 35 through a connecting assembly 43. The folding power generation mechanism 5 is arranged on the mounting ball 35, is used for photovoltaic power generation, is electrically connected with a power storage mechanism and is electrically connected with the box freezer 1.

[0040] Specifically, the support frame 2 can adopt a metal frame structure, such as aluminum alloy or steel, with high strength and corrosion resistance. The height of the support frame 2 can be adjusted according to actual use requirements to increase the stability and safety of the entire system. The rotating disc 31 can be connected to the support frame 2 through bearings to ensure smooth rotation. The rotating drive assembly can be an electric motor, a hydraulic motor, or other forms of power source, responsible for driving the rotating disc 31 to rotate around the vertical axis, achieving angle adjustment of the photovoltaic assembly in the horizontal direction. When the rotating drive assembly starts, the electric motor will drive the rotating disc 31 to rotate, thus rotating the photovoltaic assembly, achieving the best angle of sunlight irradiation at different times, and further improving the power generation efficiency.

[0041] Under normal circumstances, the rotating disc 31 is rotated daily, rotating with the photovoltaic assembly, cooperating with the folding power generation mechanism 5 to open and close, following the sunrise and sunset of the day, so that the power generation assembly always faces the sunlight, improving the power generation efficiency and increasing the service life of the power generation assembly.

[0042] The circular ring support frame 32 is also made of high-strength material, with a hemispherical groove 33 inside for accommodating the mounting ball 35. The design of the mounting hole 34 allows the mounting ball 35 to move freely in the hemispherical groove 33, achieving multi-angle adjustment. The mounting ball 35 is made of high-hardness material, such as stainless steel, which can withstand large loads while maintaining good wear resistance. The free movement characteristics of the mounting ball 35 allow the photovoltaic assembly to be finely adjusted in multiple directions to adapt to complex lighting conditions.

[0043] Reference Figure 2The sliding assembly 41 in the adjusting mechanism 4 includes two sets of connecting seats 411 arranged on the rotating disc 31, and an adjusting screw rod 412 arranged between the two sets of connecting seats 411. One end of the adjusting screw rod 412 is provided with an adjusting driving assembly 413, which can be a stepper motor or a servo motor, and the rotation vector of the adjusting screw rod 412 is accurately controlled. An adjusting sliding block 414 is screw-connected on the adjusting screw rod 412, and a positioning rod 415 is arranged between the two sets of connecting seats 411. The adjusting sliding block 414 is slidingly connected on the positioning rod 415 to ensure that the adjusting sliding block 414 moves linearly. A sleeve 421 is arranged on the adjusting sliding block 414, and a sliding plate 422 is slidingly connected in the sleeve 421. A sliding rod 423 is arranged on the sliding plate 422 and connected to a mounting rod 433. This design allows the telescopic rod 42 to freely extend and retract in multiple directions, achieving precise positioning of the mounting ball 35. When the adjusting driving assembly 413 is started, the stepper motor or servo motor drives the adjusting screw rod 412 to rotate. As an embodiment not shown, manual adjustment can also be used. The adjusting sliding block 414 is then moved along the positioning rod 415, and finally the mounting ball 35 is moved in the hemispherical groove 33 through the sliding rod 423, achieving the inclination angle adjustment of the photovoltaic assembly. The screw rod adjustment has high precision and can finely control the orientation of the photovoltaic assembly. Usually, the position is adjusted by the screw rod after seasonal changes, so that the rotating disc 31 can adapt to the sun's track throughout the day.

[0044] Reference Figure 3 , Figure 4 and Figure 5 The folding power generation mechanism 5 includes a connecting frame arranged on the mounting ball 35, a photovoltaic frame 51, and a plurality of expansion assemblies 53 arranged on the photovoltaic frame 51 away from the support frame 2. The connecting frame serves to fix the photovoltaic frame 51 and make it stable and reliable on the mounting ball 35. The photovoltaic frame 51 can be made of lightweight materials such as carbon fiber composite materials, which can reduce weight without affecting strength. The first photovoltaic assembly 52 can be a single-crystal or multi-crystal photovoltaic panel with high photoelectric conversion efficiency. The first photovoltaic assembly 52 converts solar energy into electrical energy through absorption, which is supplied to the box-type freezer 1 and other electrical equipment.

[0045] The first photovoltaic assembly 52 is in a continuous working state and can adapt to morning and evening sunlight through turning.

[0046] Figure 4 , Figure 5 and Figure 6The expansion assembly 53 comprises a rotating tooth ring 531 rotatably connected to the photovoltaic frame 51, and an expansion drive assembly 532 connected to the rotating tooth ring 531 and arranged on the photovoltaic frame 51. A driving plate 533 is coaxially arranged on the rotating tooth ring 531, a plurality of guide holes 534 are uniformly distributed on the driving plate 533, and an expansion component 535 is arranged on the guide hole 534. The expansion motor 5321 can be a small DC motor, which drives the rotating tooth ring 531 to rotate through the expansion gear 5322, and then drives the guide rod 5351 in the guide hole 534 on the driving plate 533 to move along a predetermined path. One end of the guide rod 5351 is provided with a blocking block 5352 to prevent the guide rod 5351 from falling out, and the other end is provided with a guide block 5353 which is slidingly connected to a guide rail 5354 on the photovoltaic frame 51, and a second photovoltaic assembly 5355 is arranged on the guide block 5353. This design not only increases the effective area of the photovoltaic assembly, but also dynamically adjusts the layout of the photovoltaic assembly according to the sunlight in different time periods, thereby improving the overall power generation efficiency. When the expansion drive assembly 532 is started, the small DC motor drives the rotating tooth ring 531 to rotate through the expansion gear 5322, and then drives the driving plate 533 to rotate, so that the guide rod 5351 in the guide hole 534 on the driving plate 533 is pushed to move along the guide rail 5354, and then drives the guide block 5353 to move, so as to unfold or retract the second photovoltaic assembly 5355, thereby maximizing the effective area of the photovoltaic assembly.

[0047] Generally, the following three operating modes are provided,

[0048] 1. Sunny day mode: Zero electricity fee, sunny weather, sunshine, photovoltaic system power generation can fully meet the power demand of the unit, and can store electricity in the power storage mechanism to realize "zero electricity fee". When the light intensity is higher than the preset threshold, the control system triggers the sunny day mode, the expansion drive assembly 532 of the folding power generation mechanism 5 drives the rotating tooth ring 531 to rotate, the expansion component 535 is completely unfolded along the guide rail 5354, the first photovoltaic assembly 52 and the second photovoltaic assembly 5355 work together to maximize the light receiving area; the adjusting mechanism 4 drives the rotating disc 31 to rotate through the rotating drive assembly, and cooperates with the sliding assembly 41 and the telescopic rod 42 to drive the mounting ball 35 to slide in the hemispherical groove 33, so that the photovoltaic assembly always maintains a vertical angle with the sunlight. The power output by the photovoltaic system is converted by the external inverter and directly powers the box-type freezer 1. The excess power is stored in the power storage mechanism. When the power storage mechanism is fully charged, the control system cuts off the charging circuit.

[0049] 2. Overcast mode: intelligent compensation

[0050] On cloudy days and insufficient sunlight, the photovoltaic system provides partial power supply, and the city power intelligently compensates, seamlessly connects, and when the light intensity is within the preset threshold interval, the control system switches to the cloudy day mode, and the folding power generation mechanism 5 adjusts the expansion component 535 according to the light intensity to reduce the invalid light receiving area; the external power monitoring component collects the photovoltaic output power and the real-time power consumption of the box-type freezer 1 in real time, the control system calculates the difference between the two and generates a gap power signal, triggering the dual power switching module to act, so that the city power supplies the box-type freezer 1 according to the gap power, and the power storage mechanism is in standby state, when the photovoltaic power appears instantaneous fluctuation, immediately release the electric energy to supplement the gap, ensure that the sum of photovoltaic power supply and city power supply is always equal to the real-time power consumption of the freezer.

[0051] 3. Night mode: city power supply

[0052] During the night, the photovoltaic system does not generate electricity, and the city power supply is fully supplied by the power grid, and the stored power in the power storage mechanism is used to reduce energy consumption, when the light intensity is lower than the preset threshold, the control system starts the night mode, the expansion drive assembly 532 of the folding power generation mechanism 5 drives the reverse rotation of the rotating gear ring 531, so that the expansion component 535 is retracted along the guide rail 5354, and the first photovoltaic assembly 52 stops working; the power storage mechanism preferentially supplies power to the box-type freezer 1, and the external power monitoring component detects the remaining power of the power storage mechanism in real time, when the power is lower than the preset threshold, the control system triggers the switching signal, disconnects the power storage mechanism loop and connects the city power loop, and the city power continuously supplies power to the freezer.

[0053] The implementation principle of the box-type freezer matched with the photovoltaic direct-drive variable-frequency freezer unit in the embodiment of the application is that through the cooperation of the support frame 2 and the bearing mechanism 3, the photovoltaic assembly is adjusted in the horizontal direction and the inclined direction, which greatly improves the light utilization rate of the photovoltaic assembly. The cooperation of the adjusting mechanism 4 and the folding power generation mechanism 5 enables the photovoltaic assembly to automatically adjust the angle according to the change of sunlight, and always maintains the best working state. In addition, the design of the expansion assembly 53 increases the effective area of the photovoltaic assembly, and further improves the power generation capacity of the system. Overall, the embodiment effectively solves the problems existing in the traditional photovoltaic direct-drive freezer unit, significantly reduces the energy consumption, and improves the stability and reliability of the system.

[0054] The above are preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A box-type freezer matching photovoltaic direct-drive variable frequency refrigeration unit, comprising: a box-type freezer (1), characterized in that: Also comprising Support frame (2) arranged on the box freezer (1); Bearing mechanism (3) comprising a rotating disc (31) rotatably connected to the support frame (2), the rotating disc (31) being connected with a rotating driving assembly, further comprising a circular ring support frame (32) arranged on the support frame (2), the circular ring support frame (32) being provided with a hemispherical groove (33), the bottom of the hemispherical groove (33) being provided with a mounting hole (34), and the hemispherical groove (33) being slidably connected with a mounting ball (35); Adjusting mechanism (4) comprising a sliding assembly (41) arranged on the rotating disc (31), the moving end of the sliding assembly (41) being provided with a telescopic rod (42), and the telescopic rod (42) being connected to the mounting ball (35) through a connecting assembly (43); Folding power generation mechanism (5) arranged on the mounting ball (35) for photovoltaic power generation; The connecting assembly (43) comprises a connecting groove (431) arranged on the mounting ball (35), a connecting ball (432) being slidably connected in the connecting groove (431), an installation rod (433) being arranged on the connecting ball (432), and the installation rod (433) being connected to the telescopic rod (42); The folding power generation mechanism (5) comprises a photovoltaic frame (51) arranged on the mounting ball (35), a first photovoltaic assembly (52) being arranged at the end of the photovoltaic frame (51) away from the support frame (2), and a plurality of expansion assemblies (53) being further arranged on the photovoltaic frame (51); The expansion assembly (53) comprises a rotating tooth ring (531) rotatably connected to the photovoltaic frame (51), an expansion driving assembly (532) being connected to the rotating tooth ring (531), the expansion driving assembly (532) being arranged on the photovoltaic frame (51), a driving plate (533) being coaxially arranged on the rotating tooth ring (531), a plurality of guide holes (534) being uniformly distributed on the driving plate (533), and an expansion component (535) being arranged on the guide hole (534); The expansion component (535) comprises a guide rod (5351) arranged in the guide hole (534), a blocking block (5352) being arranged at one end of the guide rod (5351), a guide block (5353) being arranged at the other end of the guide rod (5351), a guide slide rail (5354) being arranged on the photovoltaic frame (51), the guide block (5353) being slidably connected to the guide slide rail (5354), and a second photovoltaic assembly (5355) being arranged on the guide block (5353); The guide hole (534) enables the guide block (5353) to move along the guide slide rail (5354); The extension driving assembly (532) comprises an extension motor (5321) arranged on the photovoltaic frame (51), and a transmission end of the extension motor (5321) is provided with an extension gear (5322) which is engaged with the rotating tooth ring (531). The sliding assembly (41) comprises two groups of connecting seats (411) arranged on the rotating disc (31), and an adjusting lead screw (412) is arranged between the two groups of connecting seats (411); one end of the adjusting lead screw (412) is provided with an adjusting driving assembly (413); the adjusting lead screw (412) is spirally and drivingly connected with an adjusting sliding block (414); a positioning rod (415) is further arranged between the two groups of connecting seats (411); the adjusting sliding block (414) is slidingly connected on the positioning rod (415); and the telescopic rod (42) is arranged on the adjusting sliding block (414).

2. The box-type refrigeration plant matched with photovoltaic direct-drive variable frequency refrigeration unit according to claim 1, characterized in that: The telescopic rod (42) comprises a sleeve (421) arranged on the adjusting sliding block (414); a sliding plate (422) is slidingly connected in the sleeve (421); a sliding rod (423) is arranged on the sliding plate (422); and the sliding rod (423) is connected with the mounting rod (433).

3. The box-type refrigeration plant matched with photovoltaic direct-drive variable frequency refrigeration unit according to claim 2, characterized in that: The storage mechanism is further arranged in the cabinet freezer (1).

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