Fresh-keeping device utilizing photovoltaics

Abstract

The invention relates to the technical field of preservation, in particular to a photovoltaic preservation device which comprises a refrigeration house body and a photovoltaic power generation unit and further comprises a supporting unit arranged in the refrigeration house body and used for bearing a turnover box and an auxiliary unit used for assisting feeding and discharging of the turnover box. The photovoltaic power generation unit supplies power to the refrigeration system and the auxiliary mechanism, and the system is suitable for fields, fields and other scenes without stable power grids; the distance between the supporting frames is adjusted through the distance adjusting mechanism, the requirements for different storage densities are met, the overall storage capacity of the refrigeration house is improved, large-batch concentrated pre-cooling can be treated, and the storage requirements for small-batch scattered fruits and vegetables can also be met; through cooperation of the driving mechanism and the distance adjusting mechanism, in the distance adjusting process, switching of friction modes of the turnover box is achieved, moving smoothness and placing stability of the turnover box are guaranteed, and meanwhile the requirements for stability and ventilation of the box body are automatically met through adjustment of the relative height of the moving frame and the supporting frame.

Description

Technical Field

[0001] This invention relates to the field of food preservation technology, and in particular to a food preservation device utilizing photovoltaics. Background Technology

[0002] Pre-cooling harvested fruit is a crucial and irreplaceable step in the modern fruit and vegetable cold chain. Its purpose is to remove field heat and respiratory heat as quickly as possible, rapidly transforming the fruit from a high metabolic state in the field to a low-temperature dormant state.

[0003] Currently, pre-cooling is generally carried out through pre-cooling warehouses. However, due to inconvenient power supply, the pre-cooling warehouses are often far away from the picking points. Therefore, freshly picked fruits cannot be sent to the pre-cooling warehouses immediately. During the period between picking and being sent to the pre-cooling warehouses, the quality of the fruits will gradually decline, resulting in certain economic losses.

[0004] In addition, the fruit needs to be placed in turnover boxes and then stacked before being sent to the pre-cooling warehouse for pre-cooling. When forced air cooling is used, in order to ensure that the cold air can cool the fruit in each turnover box, a large gap needs to be left between adjacent turnover boxes. However, this will reduce the utilization rate of the internal space of the cold storage and make it unable to cope with large processing volumes. Furthermore, it is necessary to manually place pads between adjacent turnover boxes, which takes up additional time.

[0005] When differential pressure air cooling is used, the turnover boxes can be arranged closely together, which can maximize the use of cold storage space. However, differential pressure air cooling equipment has high operating power and extremely strict requirements for stacking neatness and packaging uniformity. It has poor flexibility, and the equipment structure is complex and the investment cost is high. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a preservation device utilizing photovoltaics to solve the technical problems existing in the prior art. The device includes a cold storage body, a photovoltaic power generation unit, a support unit disposed within the cold storage body for supporting turnover boxes, and an auxiliary unit for assisting in loading and unloading turnover boxes.

[0007] The support unit includes multiple support frames, with ball bearings on the support end faces of the support frames and air jet pipes on the end faces of the support frames facing away from the support end faces. The support frames are evenly arranged along the length of the main body of the cold storage, and an adjustment mechanism is provided between the support frames to adjust the distance between adjacent support frames.

[0008] When the spacing adjustment mechanism increases the distance between adjacent support frames, it helps cool air pass between the adjacent support frames.

[0009] When the spacing adjustment mechanism reduces the distance between adjacent support frames, it helps to reduce the overall space occupied by the support frames and increase the utilization rate of the internal space of the cold storage.

[0010] The auxiliary unit includes a pushing mechanism, a driving mechanism, and a movable frame slidably mounted on the support frame. The driving mechanism drives the movable frame to slide up and down to change the relative position of the movable frame and the support frame.

[0011] When the moving frame is at its upper limit position, it directly contacts and supports the turnover box; when the moving frame is at its lower limit position, the support frame contacts and supports the turnover box through ball bearings, so that the turnover box can be pushed out by the pushing mechanism.

[0012] Preferably, the support frame includes four columns arranged in a matrix, with multiple supporting components evenly installed between the four columns from top to bottom; each supporting component consists of two symmetrically distributed main rods and a series of evenly distributed components along their length between the two main rods. It consists of multiple reinforcing rods, with ball bearings rotatably mounted on the upper end face of the main rod. An installation groove is provided at the lower end of the main rod, and the jet pipe is located in the installation groove.

[0013] Preferably, the adjusting mechanism includes two horizontally symmetrically distributed side guide rails and a main guide rail located between the two side guide rails; both the side guide rails and the main guide rail are mounted on the base plate of the cold storage body, and multiple mounting plates are evenly slidably arranged on the side guide rails along their length direction, with a support frame installed between the two symmetrically distributed mounting plates; multiple adjusting plates are slidably arranged on the main guide rail along its length direction, with both ends of the adjusting plates connected to the mounting plates on both sides respectively, and connecting rods are hinged between the adjusting plates.

[0014] Preferably, the adjusting mechanism further includes a plurality of adjusting holes evenly opened along the length direction of the main guide rail and a positioning hole opened in the middle of the frontmost adjusting plate, and a positioning pin is inserted between the positioning hole and the corresponding adjusting hole.

[0015] Preferably, the movable frame includes a partition component that is slidably mounted on the support frame, and the partition component corresponds one-to-one with the receiving component; the partition component consists of two symmetrically distributed crossbars and a plurality of longitudinal bars evenly distributed along the length direction between the two crossbars, and the upper and lower adjacent crossbars are connected by connecting rods.

[0016] Preferably, the driving mechanism includes translation blocks. Two translation blocks are symmetrically slidably mounted on the mounting plate. A return spring is connected between the translation blocks and the mounting plate. The upper surface of the translation block is composed of an inclined surface and a flat surface, and abuts against the lower end of the corresponding connecting rod. The inclined surface of the upper surface of the translation block is located on the opposite side of the translation block, and an abutting rod is installed on the opposite side of the translation block near the lower end.

[0017] Preferably, the pushing mechanism includes a pushing plate corresponding to each of the separating components. The pushing plate is slidably installed inside the cold storage body via a guide rod. A lead screw is rotatably installed inside the cold storage body. The pushing plate and the lead screw are threaded together, and the end of the lead screw is fixedly connected to the output shaft of an external drive motor.

[0018] The lower end of the jet pipe is provided with multiple nozzles along its length. The air outlet of each nozzle is inclined, and the inclination angles of the multiple nozzles on the same jet pipe are different.

[0019] As can be seen from the above technical solutions, the photovoltaic-based food preservation device designed in this invention has the following beneficial effects: 1. This invention uses a photovoltaic power generation unit to power the refrigeration unit and auxiliary unit, making it suitable for scenarios without a stable power grid, such as fields and wilderness. The spacing of the support frame can be adjusted by the adjustable spacing mechanism to adapt to different storage density requirements, thereby improving the overall storage capacity of the cold storage. It can handle large-scale centralized pre-cooling as well as small-batch, scattered fruit and vegetable storage needs.

[0020] 2. In addition to supporting the turnover box and separating the upper and lower parts, the support frame set in this invention also concentrates the cold energy around the goods through the air jet pipe and adjustable ventilation design, improves the energy efficiency ratio of the refrigeration system, achieves rapid and uniform cooling, and shortens the pre-cooling time.

[0021] 3. The drive mechanism and the distance adjustment mechanism in this invention work together to switch the friction mode of the turnover box during the distance adjustment process, ensuring the smooth movement and placement stability of the turnover box. At the same time, by adjusting the relative height of the moving frame and the support frame, the stability of the box and the ventilation requirements are automatically achieved, saving manual operation. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention after removing some of its components.

[0025] Figure 3 This is a three-dimensional structural diagram of the side guide rail, mounting plate, translation block, etc. of the present invention.

[0026] Figure 4 This is a three-dimensional structural diagram of the main body, columns, main rods, reinforcing rods, and crossbars of the cold storage of this invention.

[0027] Figure 5 This is a side sectional view of the main rod, jet pipe and nozzle of the present invention.

[0028] Figure 6This is the present invention. Figure 2 Enlarged diagram of point A in the middle.

[0029] Reference numerals: 1. Main body of cold storage; 2. Photovoltaic power generation unit; 4. Support unit; 5. Auxiliary unit; 6. Air jet pipe; 41. Support frame; 411. Column; 412. Main rod; 413. Reinforcing rod; 42. Ball bearing; 43. Adjustment mechanism; 431. Side guide rail; 432. Main guide rail; 433. Mounting plate; 434. Adjustment plate; 435. Connecting rod; 436. Adjustment hole; 437. Positioning pin; 51. Pushing mechanism; 511. Pushing plate; 512. Lead screw; 52. Drive mechanism; 521. Translation block; 522. Abutment rod; 53. Moving frame; 531. Horizontal bar; 532. Vertical bar; 533. Connecting rod; 61. Nozzle. Detailed Implementation

[0030] To enable those skilled in the art to better understand the present invention, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] See Figure 1 and Figure 2 A photovoltaic-based food preservation device includes a cold storage body 1, a photovoltaic power generation unit 2 and a refrigeration unit, and also includes a support unit 4 installed in the cold storage body 1 for supporting turnover boxes and an auxiliary unit 5 for assisting in loading and unloading turnover boxes.

[0032] Photovoltaic power generation unit 2 utilizes existing technology and specifically includes a photovoltaic module array, an energy storage inverter, and an energy storage battery pack. The refrigeration unit also utilizes existing technology (not shown in the diagram) and specifically includes a refrigeration compressor, an evaporator, a cooler, and a cold storage plate. When sunlight is abundant, the photovoltaic module array converts captured solar energy into DC power. This power prioritizes driving the refrigeration compressor, which directly supplies cooling to the main body of the cold storage unit 1 via the evaporator and cooler, meeting immediate preservation needs. If there is surplus power, an "idle-time energy storage" mode is activated. Energy is stored through two paths: path one: the power is stored in the energy storage battery pack for later use; and path two: the power is used to drive the refrigeration compressor to convert the power into cold energy, which is then stored in the cold storage plate. When there is insufficient sunlight (such as at night or on rainy days), the system switches to energy release mode, which has two pathways. Pathway 1: The electrical energy stored in the energy storage battery pack is released through the energy storage inverter to continue driving the refrigeration compressor and supplying cooling to the main body of the cold storage 1 through the evaporator and the air cooler. Pathway 2: The cold storage plate directly releases the stored cold energy to assist or replace the refrigeration compressor in supplying cooling to the main body of the cold storage 1, forcibly driving the air circulation inside the storage, and the air cooler then blows it evenly onto the fruit in the turnover box. This not only reduces the dependence on the traditional power grid, but also improves the overall energy efficiency and operational reliability of the system through the multi-path synergy of "photovoltaic power generation - energy storage - refrigeration - cold storage", reducing energy consumption. It is an energy-saving and environmentally friendly cold chain preservation solution.

[0033] Reference Figure 2 and Figure 4 The support unit 4 includes multiple support frames 41. Ball bearings 42 are provided on the support end face of the support frame 41. A jet pipe 6 is provided on the end face of the support frame 41 facing away from the support end face. The jet pipe 6 is connected to the refrigeration unit through a flexible hose. Multiple nozzles 61 are provided at the lower end of the jet pipe 6 along its length. The air outlet of the nozzle 61 is inclined. It should be noted that the inclination angles of the multiple nozzles 61 on the same jet pipe 6 can be different to avoid the cold air range being too concentrated and to ensure the uniform distribution of cold air, thereby further improving the pre-cooling effect.

[0034] The tilted nozzles 61 allow cold air to be blown onto the turnover box placed on the support frame 41, thereby pre-cooling the fruit in a more targeted manner. This complements the large-scale pre-cooling of the refrigeration unit, improving the pre-cooling effect and efficiency.

[0035] Reference Figure 2 The support frames 41 are evenly arranged along the length of the main body 1 of the cold storage. An adjustment mechanism 43 is provided between the support frames 41. The adjustment mechanism 43 is used to adjust the distance between adjacent support frames 41.

[0036] When the spacing adjustment mechanism 43 increases the distance between adjacent support frames 41, it helps cold air pass between adjacent support frames 41; when the spacing adjustment mechanism 43 decreases the distance between adjacent support frames 41, it helps reduce the overall space occupied by the support frames 41 and increase the utilization rate of the internal space of the cold storage body 1.

[0037] Reference Figure 2 and Figure 4 The support frame 41 includes four columns 411 arranged in a matrix. Multiple supporting components are evenly installed between the four columns 411 from top to bottom. Each supporting component consists of two symmetrically distributed main rods 412 and multiple reinforcing rods 413 evenly distributed along their length between the two main rods 412. Ball bearings 42 are rotatably mounted on the upper end face of the main rods 412. An installation groove is provided at the lower end of the main rods 412, and the jet pipe 6 is located in the installation groove.

[0038] Reference Figure 2 and Figure 3 The adjusting mechanism 43 includes two horizontally symmetrically distributed side guide rails 431 and a main guide rail 432 located between the two side guide rails 431.

[0039] Both the side guide rail 431 and the main guide rail 432 are installed on the bottom plate of the cold storage body 1. Multiple mounting plates 433 are evenly slidably arranged on the side guide rail 431 along its length direction. The support frame 41 is installed between two symmetrically distributed mounting plates 433.

[0040] Multiple adjusting plates 434 are slidably arranged on the main guide rail 432 along its length direction. The two ends of the adjusting plates 434 are respectively connected to the mounting plates 433 on both sides, and the adjusting plates 434 are hinged to each other by connecting rods 435.

[0041] Reference Figure 2 and Figure 3 The adjusting mechanism 43 also includes a plurality of adjusting holes 436 evenly opened along its length direction on the main guide rail 432 and a positioning hole opened in the middle of the frontmost adjusting plate 434, and a positioning pin 437 is inserted between the positioning hole and the corresponding adjusting hole 436.

[0042] When it is necessary to adjust the distribution spacing of the support frame 41, simply push or pull any one of the adjustment plates 434 manually. Under the linkage between multiple connecting rods 435, the remaining adjustment plates 434 will also move until the spacing of the adjustment plates 434 is appropriate. At this time, insert the positioning pin 437 between the positioning hole and the corresponding adjustment hole 436 to lock the position of all adjustment plates 434, thereby locking the position of the support frame 41 and meeting the loading and unloading requirements.

[0043] Reference Figure 2The auxiliary unit 5 includes a pushing mechanism 51, a driving mechanism 52, and a movable frame 53 slidably disposed on the support frame 41. The driving mechanism 52 drives the movable frame 53 to slide up and down to change the relative position of the movable frame 53 and the support frame 41.

[0044] When the mobile frame 53 is at its upper limit position, the mobile frame 53 is in direct contact with the turnover box and supports the turnover box.

[0045] When the movable frame 53 is at its lower limit position, the support frame 41 contacts the turnover box through the ball bearings 42 and supports the turnover box so that the turnover box can be pushed out by the pushing mechanism 51.

[0046] Reference Figure 2 and Figure 4 The movable frame 53 includes a partition component that is slidably mounted on the support frame 41. The partition component corresponds one-to-one with the receiving component. The partition component consists of two symmetrically distributed horizontal bars 531 and a plurality of longitudinal bars 532 evenly distributed along the length of the two horizontal bars 531. The upper and lower adjacent horizontal bars 531 are connected by connecting rods 533. The two connecting rods 533 of the two corresponding horizontal bars 531 at the bottom end are connected by square rods to improve the stability when moving up and down.

[0047] Reference Figure 2 , Figure 3 and Figure 6 The driving mechanism 52 includes translation blocks 521. Two translation blocks 521 are symmetrically slidably mounted on the mounting plate 433. A return spring is connected between the translation blocks 521 and the mounting plate 433. The return spring is not shown in the figure. The upper surface of the translation block 521 is composed of an inclined surface and a plane, and it abuts against the lower end of the corresponding connecting rod 533. The inclined surface of the upper surface of the translation block 521 is located on the opposite side of the translation block 521. When the return spring is in the naturally extended state, the lower end of the lowermost connecting rod 533 abuts against the upper plane of the translation block 521. An abutting rod 522 is installed on the opposite side of the translation block 521 near the lower end. The end of the abutting rod 522 penetrates the mounting plate 433.

[0048] When it is necessary to put the fruit to be pre-cooled into the main body of the cold storage 1, or when the pre-cooled fruit is taken out of the main body of the cold storage... 1. When the material is removed, the spacing of the support frame 41 is adjusted by the adjusting mechanism 43 to make the spacing of the support frame 41 smaller, so as to reduce the moving distance of loading and unloading. At the same time, the abutting rod 522 abuts against the side wall of its adjacent mounting plate 433, so that the return spring is in a contracted state. During this process, the translation blocks 521 corresponding to the same mounting plate 433 move closer to each other, and the lower end of the connecting rod 533 at the bottom moves relative to the upper end surface of the translation block 521. When the lower end of the connecting rod 533 at the bottom separates from the upper end surface of the translation block 521, the connecting rod 533 loses support and moves downward under the action of gravity until the lower end of the longitudinal rod 532 abuts against the upper end surface of the long rod. At this time, the upper end surface of the separating component is located below the top of the ball 42 on the receiving component, and the bottom of the turnover box contacts the ball 42, so that there is rolling friction between the turnover box and the receiving component, reducing the resistance when the turnover box moves and improving the loading and unloading efficiency.

[0049] It should be noted that after the fruit in the turnover box is pre-cooled for a period of time by the nozzle 6, the spacing of the support frame 41 can be adjusted by the spacing adjustment mechanism 43 to reduce the spacing of the support frame 41, thereby leaving a certain space in front of the cold storage body 1 to place scattered, small batches of turnover boxes, thus effectively increasing the space utilization rate of the cold storage body 1 while ensuring the pre-cooling effect.

[0050] After the turnover box is placed, the spacing of the support frame 41 is adjusted by the adjusting mechanism 43, so that the support... The spacing between the support frames 41 increases to facilitate the flow of cold air between adjacent support frames 41. At the same time, the contact rod 522 is no longer under pressure, allowing the return spring to return to its natural extension state. The translation blocks 521 corresponding to the same mounting plate 433 move away from each other. During this process, the upper inclined surface of the translation block 521 abuts against the lower end of the lowest connecting rod 533, thereby driving all the partition components to move upward synchronously. When the translation block 521 returns to its original position, the upper plane of the translation block 521 abuts against the lower end of the lowest connecting rod 533. The upper surface of the partition component is located above the upper surface of the receiving component, and the bottom of the turnover box contacts the upper surface of the partition component. There is sliding friction between the turnover box and the partition component to ensure the stability of the turnover box's placement position and prevent the turnover box from sliding accidentally.

[0051] Reference Figure 2 and Figure 4 The pushing mechanism 51 includes a pushing plate 511 corresponding to the partition component. The pushing plate 511 is slidably installed inside the cold storage body 1 through a guide rod. A lead screw 512 is rotatably installed inside the cold storage body 1. The pushing plate 511 and the lead screw 512 are threadedly engaged. The end of the lead screw 512 is fixedly connected to the output shaft of an external drive motor (not shown in the figure).

[0052] Initially, the pusher plate 511 is located near the rear end of the lead screw 512. When the precooling is finished and the turnover box needs to be removed from the cold storage body 1, the drive motor is started. The drive motor drives the lead screw 512 to rotate. Under the guidance and limiting action of the guide rod, the pusher plate 511 moves forward at a constant speed to push the turnover box on the last side forward. The turnover box on the rear side pushes the turnover box on the front side forward, thereby gradually pushing the turnover box out. The staff only needs to transfer the pushed-out turnover box on the front side of the cold storage body 1.

[0053] When the next batch of pre-cooled fruit needs to be sent into the main body of the cold storage 1, the drive motor drives the lead screw 512 to rotate in the opposite direction, so that the pusher plate 511 moves backward to the initial position, leaving enough space for the placement of the next batch of turnover boxes.

[0054] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0055] In the description of this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] The above provides a detailed description of a photovoltaic-based food preservation device provided by the present invention. For those skilled in the art, based on the ideas of the embodiments of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A food preservation device utilizing photovoltaics, characterized in that, It includes the main body of the cold storage, the photovoltaic power generation unit, the support unit located inside the main body of the cold storage for supporting the turnover boxes, and the auxiliary unit for assisting in loading and unloading the turnover boxes; The support unit includes multiple support frames, with ball bearings on the support end faces of the support frames and air jet pipes on the end faces of the support frames facing away from the support end faces; the support frames are evenly arranged along the length of the main body of the cold storage, and an adjustment mechanism is provided between the support frames; When the spacing adjustment mechanism increases the distance between adjacent support frames, it helps the cold air to pass between the adjacent support frames; When the spacing adjustment mechanism reduces the distance between adjacent support frames, it helps to reduce the overall space occupied by the support frames and increase the utilization rate of the internal space of the cold storage. The auxiliary unit includes a pushing mechanism, a driving mechanism, and a movable frame that is slidably mounted on the support frame. The driving mechanism drives the movable frame to slide up and down to change the relative position of the movable frame and the support frame. When the mobile frame is at its upper limit position, it is in direct contact with the turnover box and supports the turnover box. When the moving frame is at its lower limit position, the support frame contacts the turnover box through the ball bearings and supports the turnover box so that the turnover box can be pushed out by the pushing mechanism.

2. The food preservation device utilizing photovoltaics according to claim 1, characterized in that, The support frame includes four columns arranged in a matrix, with multiple supporting components evenly installed between the four columns from top to bottom. The supporting assembly consists of two symmetrically distributed main rods and a uniform distribution between the two main rods along their length. It consists of multiple reinforcing rods, with ball bearings rotatably mounted on the upper end face of the main rod. An installation groove is provided at the lower end of the main rod, and the jet pipe is located in the installation groove.

3. A food preservation device utilizing photovoltaics according to claim 2, characterized in that, The adjusting mechanism includes two horizontally symmetrically distributed side guide rails and a main guide rail located between the two side guide rails; Both the side guide rails and the main guide rails are installed on the base plate of the cold storage body. Multiple mounting plates are evenly slidably arranged on the side guide rails along their length, and the support frame is installed between two symmetrically distributed mounting plates. Multiple adjusting plates are slidably mounted on the main rail along its length. The two ends of each adjusting plate are connected to the mounting plates on both sides, and the adjusting plates are hinged together by connecting rods.

4. A food preservation device utilizing photovoltaics according to claim 3, characterized in that, The adjustment mechanism also includes multiple adjustment holes evenly opened along the length of the main guide rail and a positioning hole opened in the middle of the frontmost adjustment plate, with a positioning pin inserted between the positioning hole and the corresponding adjustment hole.

5. A food preservation device utilizing photovoltaics according to claim 3, characterized in that, The mobile frame includes a partition component that is slidably mounted on a support frame, and the partition component corresponds one-to-one with the receiving component. The separator consists of two symmetrically distributed crossbars and multiple longitudinal bars evenly distributed along their length between the two crossbars. The upper and lower adjacent crossbars are connected by connecting rods.

6. A food preservation device utilizing photovoltaics according to claim 5, characterized in that, The driving mechanism includes translation blocks. Two translation blocks are symmetrically slidably mounted on the mounting plate. A return spring is connected between the translation blocks and the mounting plate. The upper surface of the translation block is composed of an inclined surface and a flat surface, and it abuts against the lower end of the corresponding connecting rod. The inclined surface of the upper surface of the translation block is located on the opposite side of the translation block. An abutting rod is installed on the opposite side of the translation block near the lower end.

7. A food preservation device utilizing photovoltaics according to claim 5, characterized in that, The pushing mechanism includes a pushing plate corresponding to each of the partition components. The pushing plate is slidably installed inside the cold storage body via a guide rod. A lead screw is rotatably installed inside the cold storage body. The pushing plate and the lead screw are threaded together. The end of the lead screw is fixedly connected to the output shaft of an external drive motor.

8. A food preservation device utilizing photovoltaics according to claim 1, characterized in that, Multiple nozzles are arranged along the length of the lower end of the jet pipe, and the air outlets of the nozzles are inclined. The inclination angles of the multiple nozzles on the same jet pipe are different.

Images