Intelligent energy-saving device for cold storage

Abstract

The application discloses an intelligent cold storage energy-saving device and belongs to the technical field of refrigeration equipment. The device comprises a cold storage, an evaporator and a plurality of shelves. The cold storage is provided with a cold storage door. The cold storage is fixedly connected with a partition plate. The cold storage is divided into a freezing cavity and a matching cavity through the partition plate. Each shelf is provided with an article detection sensor. The matching cavity is fixedly connected with an electric push rod. The output end of the electric push rod is fixedly connected with a connecting plate. The article detection sensor is electrically connected with the electric push rod. The cold storage is provided with a self-adaptive mechanism for determining the area of a freezing area according to whether there are frozen products on the shelves. Through cooperation of the overall structure, the area of the freezing area is determined according to whether there are frozen products on the shelves. Then, the power of the evaporator is adaptively adjusted according to the area of the freezing area, so that energy saving and environmental protection are achieved, and the freezing quality of the frozen products is ensured.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, specifically to an intelligent energy-saving device for cold storage. Background Technology

[0002] Cold storage is an important part of the logistics industry. It is mainly used for the constant temperature and humidity storage of semi-finished and finished products such as food, dairy products, meat, aquatic products, poultry, fruits and vegetables, beverages, flowers, green plants, tea, pharmaceuticals, chemical raw materials, electronic instruments, tobacco, and alcoholic beverages.

[0003] Chinese patent (publication number CN114754538A) discloses an automatic energy-saving control device for cold storage, including a cold storage box with a side-opening door on one side. A vacuum chamber is located inside the side wall of the cold storage box, and a vacuum pressure sensor is installed within the vacuum chamber. A vacuum pump connected to the vacuum pressure sensor is located outside the cold storage box, and the vacuum pump has a vacuum tube communicating with the vacuum chamber. By incorporating a vacuum chamber on the outer wall, insulation performance is improved, while the internal movable partition allows for adjustment of storage space, thereby controlling energy savings.

[0004] The aforementioned patent document describes how the movement of partitions can alter the internal storage space of a cold storage container, thereby reducing the space required for cold air release, lowering energy consumption, and controlling energy conservation. However, most cold storage facilities have shelves, making it impossible to move the partitions. Furthermore, the movement distance of the partitions requires manual adjustment, which is time-consuming and labor-intensive. Therefore, we need an intelligent cold storage energy-saving device to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent cold storage energy-saving device that has the advantage of determining the area of ​​the frozen storage area based on whether there are frozen products on the shelves, thus solving the problem that the shelves and partitions cannot be adjusted.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent cold storage energy-saving device, comprising a cold storage, an evaporator, and several shelves. The cold storage is equipped with a cold storage door and a partition fixedly connected to it. The cold storage is divided into a freezing chamber and a connecting chamber by the partition. Each shelf is equipped with an item detection sensor. An electric push rod is fixedly connected to the connecting chamber. A connecting plate is fixedly connected to the output end of the electric push rod. The item detection sensor is electrically connected to the electric push rod. The cold storage is equipped with an adaptive mechanism for determining the area of ​​the freezing zone based on whether there are frozen products on the shelves.

[0007] Preferably, the connecting plate is an L-shaped plate, the connecting plate is fitted with the freezing cavity, and the connecting plate passes through the freezing cavity and extends outside the cold storage.

[0008] Preferably, the adaptive mechanism includes a plurality of limiting grooves formed on the freezing cavity, each limiting groove being slidably connected to a corresponding shelf, each shelf being fixedly connected to a fixing plate, each fixing plate being fixedly connected to a stop rod, each stop rod being sleeved with a first spring, and the two ends of each first spring being fixedly connected to the corresponding fixing plate and the cold storage respectively.

[0009] Preferably, the adaptive mechanism further includes an auxiliary cavity formed on the cold storage, the auxiliary cavity and the mating cavity are connected, a mating plate is slidably connected to the auxiliary cavity, the mating plate is fixedly connected to the connecting plate, an inclined surface is formed on the mating plate, and the abutment rod abuts against the mating plate.

[0010] Preferably, the cold storage is provided with an adjustment mechanism for adjusting the refrigeration power of the evaporator according to the area of ​​the freezing chamber. The adjustment mechanism includes a distance sensor fixedly connected to the cold storage. The distance sensor detects the distance of the connecting plate extending out of the cold storage. The evaporator is fixedly connected to the freezing chamber, and the distance sensor is electrically connected to the evaporator.

[0011] Preferably, the freezing chamber is provided with a defrosting mechanism for defrosting the evaporator when there are few frozen items. The defrosting mechanism includes a motor fixedly connected to an auxiliary chamber. The motor is electrically connected to a distance sensor. A rotating shaft is fixedly connected to the output end of the motor. A pump gear is fixedly connected to the rotating shaft. A support plate is fixedly connected to the freezing chamber. A pump body is fixedly connected to the support plate. A pump gear ring is rotatably connected to the pump body. The pump gear ring meshes with the pump gear. The pump body and the rotating shaft are not on the same axis.

[0012] Preferably, the defrosting mechanism further includes a water inlet pipe, a drain pipe, and two branch pipes. The water inlet pipe is connected to the pump body, and the end of the water inlet pipe away from the pump body is connected to an external water supply mechanism. The drain pipe is connected to the end of the pump body away from the water inlet pipe. The two branch pipes are connected to the drain pipe. Each branch pipe is fixedly connected to a nozzle at the end away from the drain pipe. The nozzle faces the evaporator. A one-way valve is fixedly connected to both the water inlet pipe and the drain pipe.

[0013] Preferably, the defrosting mechanism further includes a hot defrosting assembly, which cooperates with the evaporator.

[0014] Preferably, the freezing chamber is provided with a collection mechanism for collecting water from the evaporator. The collection mechanism includes two connecting blocks fixedly connected to the freezing chamber. Each connecting block is rotatably connected to an electric rotating rod. Both electric rotating rods are electrically connected to a distance sensor. A collection box is fixedly connected to both electric rotating rods. The collection box has a collection cavity. A collection pipe is connected to the collection cavity. The end of the collection pipe away from the collection cavity is connected to an external recycling mechanism.

[0015] Preferably, the collection box is provided with an auxiliary mechanism for evenly spraying water onto the evaporator. The auxiliary mechanism includes a sliding groove formed on the collection box, two branch pipes slidably connected to the sliding groove, a second spring fixedly connected to each branch pipe, the end of each second spring away from the branch pipe being fixedly connected to the sliding groove, a support block fixedly connected to each branch pipe, a mating rod fixedly connected to each support block, and a cam fixedly connected to the rotating shaft, the cam abutting against the two mating rods.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. Through the coordination of the overall structure, this invention achieves the goal of determining the area of ​​the freezing zone based on whether there are frozen products on the shelf, and then adaptively adjusting the power of the evaporator according to the area of ​​the freezing zone, thereby saving energy and protecting the environment, while ensuring the freezing quality of the frozen products.

[0018] 2. By coordinating the adjustment mechanism and the defrosting mechanism, this invention enables the motor to start when there are few frozen items in the freezing chamber, thereby defrosting the evaporator. This minimizes the impact on the storage temperature and the quality of the frozen items, thus avoiding any negative impact on the quality of the frozen items in the cold storage.

[0019] 3. This invention achieves the effect of collecting water on the evaporator by combining the defrosting mechanism and the collection mechanism, and avoids water flowing to the floor of the freezing chamber, which is difficult to clean. At the same time, water that is not cleaned can easily cause fogging in the cold storage, causing water to drip from the ceiling of the cold storage, which will affect the quality of frozen products.

[0020] 4. Through the cooperation of the defrosting mechanism and the auxiliary mechanism, the present invention achieves the reciprocating sliding of the two branch pipes along the sliding groove, thereby uniformly spraying water onto the evaporator, further improving the defrosting efficiency and quality of the evaporator. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic cross-sectional view of the cold storage structure of the present invention;

[0023] Figure 3 This is a cross-sectional structural diagram of the adaptive mechanism and the adjustment mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram of the connecting plate of the present invention;

[0025] Figure 5 This is a schematic diagram of the connecting plate and mating plate of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the mating plate and the abutment of the present invention;

[0027] Figure 7 This is a schematic diagram of the defrosting mechanism, collecting mechanism, and auxiliary mechanism of the present invention;

[0028] Figure 8 This is a schematic diagram of the collection mechanism of the present invention;

[0029] Figure 9 This is a schematic diagram of the defrosting mechanism and auxiliary mechanism of the present invention;

[0030] Figure 10 This is a cross-sectional structural diagram of the defrosting mechanism of the present invention;

[0031] In the diagram: 1. Cold storage; 11. Cold storage door; 12. Freezing chamber; 13. Matching chamber; 14. Auxiliary chamber; 15. Partition; 2. Connecting plate; 21. Electric push rod; 22. Evaporator; 23. Matching plate; 24. Inclined surface; 3. Shelf; 31. Fixed plate; 32. First spring; 33. Support rod; 34. Limiting groove; 4. Collection box; 41. Collection chamber; 42. Sliding groove; 43. Electric rotating rod; 44. Connecting block; 45. Collection pipe; 5. Motor; 51. Rotating shaft; 52. Cam; 53. Pump body; 54. Water inlet pipe; 55. Drain pipe; 56. Branch pipe; 57. Nozzle; 58. Second spring; 59. One-way valve; 6. Support block; 61. Matching rod; 62. Pump gear ring; 63. Pump gear; 64. Support plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only 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.

[0033] Example 1

[0034] This invention provides a technical solution: an intelligent cold storage energy-saving device, see reference. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The system includes a cold storage 1, an evaporator 22, and several shelves 3. The cold storage 1 is equipped with a cold storage door 11 and a partition 15 is fixedly connected to the cold storage 1. The cold storage 1 is divided into a freezing chamber 12 and a mating chamber 13 by the partition 15. Each shelf 3 is equipped with an item detection sensor. An electric push rod 21 is fixedly connected to the mating chamber 13. A connecting plate 2 is fixedly connected to the output end of the electric push rod 21. The item detection sensor is electrically connected to the electric push rod 21. The cold storage 1 is equipped with an adaptive mechanism for determining the area of ​​the freezing chamber 12 based on whether there are frozen products on the shelf 3.

[0035] By setting up several shelves 3, the effect of facilitating the placement of frozen products is achieved; by setting up the freezing chamber 12, the effect of freezing frozen products and improving freezing efficiency is achieved; by setting up the mating chamber 13, the mechanism that mates with the connecting plate 2 is placed, ensuring the sealing effect of the freezing chamber 12.

[0036] When placing frozen goods, they are placed sequentially from the shelf 3 closest to the cold storage door 11 to the shelf 3 at the inner end. Therefore, if there are no frozen goods on the shelf 3, the shelf 3 closest to the electric push rod 21 will be empty first, and the placement will proceed sequentially to the shelf 3 closest to the cold storage door 11.

[0037] When there are no frozen items on the shelf 3 near the electric push rod 21, the item detection sensor on it receives the detection signal that there are no frozen items on the shelf 3. Since the item detection sensor is electrically connected to the electric push rod 21, the detection signal is transmitted to the electric push rod 21, so the output end of the electric push rod 21 slides towards the shelf 3 without frozen items. Since the connecting plate 2 is fixedly connected to the output end of the electric push rod 21, and with the cooperation of the adaptive mechanism, the shelf 3 slides out of the freezing chamber 12, so the connecting plate 2 slides to the position of the shelf 3. At this time, the freezing area is reduced, which reduces the flow range of cold air, thereby further improving the energy-saving and environmental protection effect.

[0038] The connecting plate 2 is an L-shaped plate. The connecting plate 2 is attached to the freezing chamber 12 and extends through the freezing chamber 12 to the outside of the cold storage 1.

[0039] By setting the connecting plate 2 as an L-shaped plate, the freezing area is kept sealed even when the area of ​​the freezing area is changed, so that the frozen products inside will not deteriorate. By setting the connecting plate 2 to pass through the freezing cavity 12 and extend outside the cold storage 1, the freezing area is kept sealed, and interference between the connecting plate 2 and the freezing cavity 12 is avoided.

[0040] The adaptive mechanism includes several limiting grooves 34 formed on the freezing chamber 12. Each limiting groove 34 is slidably connected to the corresponding shelf 3. Each shelf 3 is fixedly connected to a fixing plate 31. Each fixing plate 31 is fixedly connected to a stop rod 33. Each stop rod 33 is sleeved with a first spring 32. The two ends of each first spring 32 are fixedly connected to the corresponding fixing plate 31 and the cold storage 1, respectively.

[0041] The adaptive mechanism also includes an auxiliary cavity 14 opened on the cold storage 1. The auxiliary cavity 14 is connected to the mating cavity 13. A mating plate 23 is slidably connected to the auxiliary cavity 14. The mating plate 23 is fixedly connected to the connecting plate 2. An inclined surface 24 is opened on the mating plate 23. The abutment rod 33 abuts against the mating plate 23.

[0042] When the shelf 3 slides outward from the freezing chamber 12 along the limiting groove 34, the shelf 3 stops sliding when its inner end is in contact with the inner wall of the freezing chamber 12. This seals the limiting groove 34 and prevents interference between the connecting plate 2 and the shelf 3 when the connecting plate 2 slides.

[0043] When the electric push rod 21 drives the connecting plate 2 to slide towards the shelf 3, the connecting plate 2 is fixedly connected to the mating plate 23, causing the mating plate 23 to slide synchronously towards the shelf 3. Since the mating plate 23 abuts against the abutment rod 33, when the mating plate 23 slides to the abutment rod 33 corresponding to the shelf 3, it abuts against the abutment rod 33. Then the abutment rod 33 slides along the inclined surface 24 of the mating plate 23 to the end away from the mating plate 23. Since the abutment rod 33 is fixedly connected to the corresponding shelf 3 through the fixing plate 31, the shelf 3 slides synchronously to the end away from the mating plate 23 through the abutment rod 33. When the abutment rod 33 slides to the flat surface after sliding along the inclined surface 24 of the mating plate 23, the inner end of the shelf 3 is in contact with the inner wall of the freezing chamber 12.

[0044] When there are a large number of shelves 3 without frozen products, the item detection sensors on them transmit signals to the electric push rod 21, causing all shelves 3 without frozen products to slide out of the freezing chamber 12, and the connecting plate 2 slides to the shelf 3 without frozen products near the cold storage door 11. At this time, the frozen area in the freezing chamber 12 is relatively small.

[0045] When there are few frozen products on shelf 3, the frozen area is larger, following the same principle as above.

[0046] The cold storage 1 is equipped with an adjustment mechanism for adjusting the refrigeration power of the evaporator 22 according to the area of ​​the freezing chamber 12. The adjustment mechanism includes a distance sensor fixedly connected to the cold storage 1. The distance sensor detects the distance of the connecting plate 2 extending out of the cold storage 1. The evaporator 22 is fixedly connected to the freezing chamber 12, and the distance sensor is electrically connected to the evaporator 22.

[0047] When the freezing area in the freezing chamber 12 is small, the connecting plate 2 extends a greater distance out of the cold storage 1. At this time, the distance sensor detects the distance that the connecting plate 2 extends out of the cold storage 1. Since the distance sensor is electrically connected to the evaporator 22, the power of the evaporator 22 is reduced significantly, thereby saving energy and protecting the environment, and preventing the temperature of the freezing chamber 12 from being too low.

[0048] When the freezing area in the freezing chamber 12 is large, the distance that the connecting plate 2 extends out of the cold storage 1 is small. As with the principle above, the power of the evaporator 22 is reduced less, thus saving energy and protecting the environment, and avoiding the deterioration of frozen products in the freezing chamber 12.

[0049] Through the cooperation of the adaptive mechanism and the adjustment mechanism, the area of ​​the freezing zone is determined according to whether there are frozen products on the shelf 3. Then, the power of the evaporator 22 is adaptively adjusted according to the area of ​​the freezing zone, thereby saving energy and protecting the environment, while ensuring the freezing quality of the frozen products.

[0050] Example 2

[0051] Basically the same as Example 1, but further: See Figure 2 , Figure 7 , Figure 9 and Figure 10 The freezing chamber 12 is equipped with a defrosting mechanism for defrosting the evaporator 22 when there are few frozen items. The defrosting mechanism includes a motor 5 fixedly connected to the auxiliary chamber 14. The motor 5 is electrically connected to the distance sensor. The output end of the motor 5 is fixedly connected to a rotating shaft 51. A pump gear 63 is fixedly connected to the rotating shaft 51. A support plate 64 is fixedly connected to the freezing chamber 12. A pump body 53 is fixedly connected to the support plate 64. A pump gear ring 62 is rotatably connected inside the pump body 53. The pump gear ring 62 meshes with the pump gear 63. The pump body 53 and the rotating shaft 51 are not on the same axis.

[0052] The defrosting mechanism also includes a water inlet pipe 54, a drain pipe 55, and two branch pipes 56. The water inlet pipe 54 is connected to the pump body 53, and the end of the water inlet pipe 54 away from the pump body 53 is connected to an external water supply mechanism. The drain pipe 55 is connected to the end of the pump body 53 away from the water inlet pipe 54. The two branch pipes 56 are connected to the drain pipe 55. Each branch pipe 56 is fixedly connected to a nozzle 57 at the end away from the drain pipe 55. The nozzle 57 faces the evaporator 22. A one-way valve 59 is fixedly connected to both the water inlet pipe 54 and the drain pipe 55.

[0053] The defrosting mechanism also includes a hot defrosting assembly, which works in conjunction with the evaporator 22.

[0054] During use, the evaporator 22 inside the cold storage 1 may become excessively frosty, increasing the thermal resistance of the evaporation pipes and hindering heat conduction, thus affecting the refrigeration effect. It is necessary to remove the frost from the evaporator 22 regularly during use, otherwise it will not be conducive to the normal operation of the cold storage 1. Moreover, defrosting the cold storage 1 may affect the quality of the frozen products inside the cold storage 1.

[0055] When the motor 5 is started, the rotating shaft 51 rotates, and the pump gear 63 on it rotates. Since the rotating shaft 51 and the pump body 53 are not on the same axis and the pump gear 63 meshes with the pump gear ring 62, the pump gear ring 62 rotates synchronously in the pump body 53. This causes the end of the pump body 53 near the water inlet pipe 54 to generate negative pressure through the cooperation of the one-way valve 59, which draws water from the external water supply mechanism into the pump body 53 through the water inlet pipe 54. Subsequently, the water rotates along with the pump gear 63 and the pump gear ring 62 in the pump body 53 until it rotates to one end of the drain pipe 55. At this time, the end of the pump body 53 near the drain pipe 55 generates high pressure through the cooperation of the one-way valve 59, which discharges the water through the branch pipe 56 to the nozzle 57, and then sprays it onto the evaporator 22 to remove the frost layer on the outer surface of the evaporator 22.

[0056] By setting up a hot defrosting assembly, the high-temperature refrigerant gas discharged from the refrigeration compressor is introduced into the evaporator 22 after being separated by a gas separator. The heat released by the superheated steam melts the frost layer on the outer surface of the evaporator 22. After releasing heat, the superheated steam turns into liquid and is discharged into the drain tank or low-pressure circulating liquid receiver along with the original oil in the evaporator 22. At the same time, the oil stains in the pipes of the evaporator 22 are also discharged.

[0057] The hot defrosting assembly is an existing device and is therefore not shown in the figure. Furthermore, the relevant technology of the hot defrosting assembly is well known to those skilled in the art and will not be described in detail here.

[0058] By using water defrosting and hot defrosting, the frost layer on the surface of the evaporator 22 can be removed quickly and efficiently, and the accumulated oil inside the evaporator 22 can also be removed. During defrosting, superheated refrigerant steam is first sent into the evaporator 22 to separate the frost layer from the surface of the evaporator 22. Then, water is sprayed to quickly wash away the frost layer. After the water is stopped, superheated refrigerant steam is used to dry the surface of the evaporator 22 to prevent the surface water film from freezing and affecting heat transfer.

[0059] By electrically connecting the motor 5 to the distance sensor, when the frozen area in the freezing chamber 12 is small and the connecting plate 2 extends a considerable distance out of the cold storage 1, there are fewer frozen items in the freezing chamber 12. At the same time, the distance sensor starts the motor 5, so that the motor 5 starts when there are fewer frozen items in the freezing chamber 12, thereby defrosting the evaporator 22. This minimizes the impact on the storage temperature and the quality of the frozen items, thus avoiding any impact on the quality of the frozen items in the cold storage 1.

[0060] Example 3

[0061] Basically the same as Example 2, but further: See Figure 2 , Figure 7 , Figure 8 and Figure 9 The freezing chamber 12 is equipped with a collection mechanism for collecting water from the evaporator 22. The collection mechanism includes two connecting blocks 44 fixedly connected to the freezing chamber 12. Each connecting block 44 is rotatably connected to an electric rotating rod 43. Both electric rotating rods 43 are electrically connected to a distance sensor. A collection box 4 is fixedly connected to both electric rotating rods 43. A collection cavity 41 is opened on the collection box 4. A collection pipe 45 is connected to the collection cavity 41. The end of the collection pipe 45 away from the collection cavity 41 is connected to an external recycling mechanism.

[0062] When the evaporator 22 is defrosting, the electric rotating rod 43 is electrically connected to the distance sensor, causing the electric rotating rod 43 to start. As the electric rotating rod 43 rotates, the collection box 4 on it rotates synchronously until the collection box 4 rotates from a vertical state to a horizontal state, and the collection box 4 is located below the evaporator 22. Then, the water on the evaporator 22 flows into the collection chamber 41 and is discharged through the collection pipe 45. This achieves the effect of collecting the water on the evaporator 22 and avoids the water flowing to the ground of the freezing chamber 12, which is difficult to clean. At the same time, if the water is not cleaned, it will easily cause fogging in the cold storage 1, causing water to drip from the ceiling of the cold storage 1, which will affect the quality of the frozen products.

[0063] The collection box 4 is equipped with an auxiliary mechanism for evenly spraying water onto the evaporator 22. The auxiliary mechanism includes a sliding groove 42 opened on the collection box 4, two branch pipes 56 slidably connected to the sliding groove 42, a second spring 58 fixedly connected to each branch pipe 56, the end of each second spring 58 away from the branch pipe 56 fixedly connected to the sliding groove 42, a support block 6 fixedly connected to each branch pipe 56, a mating rod 61 fixedly connected to each support block 6, and a cam 52 fixedly connected to the rotating shaft 51, the cam 52 abutting against the two mating rods 61.

[0064] When the rotating shaft 51 rotates, the cam 52 on it rotates. Since the cam 52 abuts against the two mating rods 61 and is engaged by the second spring 58, the two branch pipes 56 slide back and forth along the sliding groove 42, thereby spraying water evenly onto the evaporator 22, further improving the defrosting efficiency and quality of the evaporator 22.

[0065] Working principle: This intelligent cold storage energy-saving device, when in use, achieves the effect of convenient placement of frozen products by setting up several shelves 3; achieves the effect of freezing frozen products and improving freezing efficiency by setting up freezing chamber 12; and achieves the effect of sealing the freezing chamber 12 by setting up mating chamber 13 to place the mechanism that mates with the connecting plate 2.

[0066] When placing frozen goods, they are placed sequentially from the shelf 3 closest to the cold storage door 11 to the shelf 3 at the inner end. Therefore, if there are no frozen goods on the shelf 3, the shelf 3 closest to the electric push rod 21 will be empty first, and the placement will proceed sequentially to the shelf 3 closest to the cold storage door 11.

[0067] When there are no frozen items on the shelf 3 near the electric push rod 21, the item detection sensor on it receives the detection signal that there are no frozen items on the shelf 3. Since the item detection sensor is electrically connected to the electric push rod 21, the detection signal is transmitted to the electric push rod 21, so the output end of the electric push rod 21 slides towards the shelf 3 without frozen items. Since the connecting plate 2 is fixedly connected to the output end of the electric push rod 21, and with the cooperation of the adaptive mechanism, the shelf 3 slides out of the freezing chamber 12, so the connecting plate 2 slides to the position of the shelf 3. At this time, the freezing area is reduced, which reduces the flow range of cold air, thereby further improving the energy-saving and environmental protection effect.

[0068] By setting the connecting plate 2 as an L-shaped plate, the freezing area is kept sealed even when the area of ​​the freezing area is changed, so that the frozen products inside will not deteriorate. By setting the connecting plate 2 to pass through the freezing cavity 12 and extend outside the cold storage 1, the freezing area is kept sealed, and interference between the connecting plate 2 and the freezing cavity 12 is avoided.

[0069] When the shelf 3 slides outward from the freezing chamber 12 along the limiting groove 34, the shelf 3 stops sliding when its inner end is in contact with the inner wall of the freezing chamber 12. This seals the limiting groove 34 and prevents interference between the connecting plate 2 and the shelf 3 when the connecting plate 2 slides.

[0070] When the electric push rod 21 drives the connecting plate 2 to slide towards the shelf 3, the connecting plate 2 is fixedly connected to the mating plate 23, causing the mating plate 23 to slide synchronously towards the shelf 3. Since the mating plate 23 abuts against the abutment rod 33, when the mating plate 23 slides to the abutment rod 33 corresponding to the shelf 3, it abuts against the abutment rod 33. Then the abutment rod 33 slides along the inclined surface 24 of the mating plate 23 to the end away from the mating plate 23. Since the abutment rod 33 is fixedly connected to the corresponding shelf 3 through the fixing plate 31, the shelf 3 slides synchronously to the end away from the mating plate 23 through the abutment rod 33. When the abutment rod 33 slides to the flat surface after sliding along the inclined surface 24 of the mating plate 23, the inner end of the shelf 3 is in contact with the inner wall of the freezing chamber 12.

[0071] When there are a large number of shelves 3 without frozen products, the item detection sensors on them transmit signals to the electric push rod 21, causing all shelves 3 without frozen products to slide out of the freezing chamber 12, and the connecting plate 2 slides to the shelf 3 without frozen products near the cold storage door 11. At this time, the frozen area in the freezing chamber 12 is relatively small.

[0072] When there are few frozen products on shelf 3, the frozen area is larger, following the same principle as above.

[0073] When the freezing area in the freezing chamber 12 is small, the connecting plate 2 extends a greater distance out of the cold storage 1. At this time, the distance sensor detects the distance that the connecting plate 2 extends out of the cold storage 1. Since the distance sensor is electrically connected to the evaporator 22, the power of the evaporator 22 is reduced significantly, thereby saving energy and protecting the environment, and preventing the temperature of the freezing chamber 12 from being too low.

[0074] When the freezing area in the freezing chamber 12 is large, the distance that the connecting plate 2 extends out of the cold storage 1 is small. As with the principle above, the power of the evaporator 22 is reduced less, thus saving energy and protecting the environment, and avoiding the deterioration of frozen products in the freezing chamber 12.

[0075] Through the cooperation of the adaptive mechanism and the adjustment mechanism, the area of ​​the freezing zone is determined according to whether there are frozen products on the shelf 3. Then, the power of the evaporator 22 is adaptively adjusted according to the area of ​​the freezing zone, thereby saving energy and protecting the environment, while ensuring the freezing quality of the frozen products.

[0076] During use, the evaporator 22 inside the cold storage 1 may become excessively frosty, increasing the thermal resistance of the evaporation pipes and hindering heat conduction, thus affecting the refrigeration effect. It is necessary to remove the frost from the evaporator 22 regularly during use, otherwise it will not be conducive to the normal operation of the cold storage 1. Moreover, defrosting the cold storage 1 may affect the quality of the frozen products inside the cold storage 1.

[0077] When the motor 5 is started, the rotating shaft 51 rotates, and the pump gear 63 on it rotates. Since the rotating shaft 51 and the pump body 53 are not on the same axis and the pump gear 63 meshes with the pump gear ring 62, the pump gear ring 62 rotates synchronously in the pump body 53. This causes the end of the pump body 53 near the water inlet pipe 54 to generate negative pressure through the cooperation of the one-way valve 59, which draws water from the external water supply mechanism into the pump body 53 through the water inlet pipe 54. Subsequently, the water rotates along with the pump gear 63 and the pump gear ring 62 in the pump body 53 until it rotates to one end of the drain pipe 55. At this time, the end of the pump body 53 near the drain pipe 55 generates high pressure through the cooperation of the one-way valve 59, which discharges the water through the branch pipe 56 to the nozzle 57, and then sprays it onto the evaporator 22 to remove the frost layer on the outer surface of the evaporator 22.

[0078] By setting up a hot defrosting component, the high-temperature refrigerant gas discharged from the refrigeration compressor is introduced into the evaporator 22 after being separated from the oil. The heat released by the superheated steam melts the frost layer on the outer surface of the evaporator 22. After the superheated steam releases heat, it turns into liquid and is discharged into the drain tank or low-pressure circulating liquid receiver along with the original oil in the evaporator 22. At the same time, the oil stains in the pipes of the evaporator 22 are discharged.

[0079] The hot defrosting assembly is an existing device and is therefore not shown in the figure. Furthermore, the relevant technology of the hot defrosting assembly is well known to those skilled in the art and will not be described in detail here.

[0080] By using water defrosting and hot defrosting, the frost layer on the surface of the evaporator 22 can be removed quickly and efficiently, and the accumulated oil inside the evaporator 22 can also be removed. During defrosting, superheated refrigerant vapor is first sent into the evaporator 22 to separate the frost layer from the surface of the evaporator 22. Then, water is sprayed to quickly wash away the frost layer. After the water is stopped, superheated refrigerant vapor is used to dry the surface of the evaporator 22 to prevent the surface water film from freezing and affecting heat transfer.

[0081] By electrically connecting the motor 5 to the distance sensor, when the frozen area in the freezing chamber 12 is small and the connecting plate 2 extends a considerable distance out of the cold storage 1, there are fewer frozen items in the freezing chamber 12. At the same time, the distance sensor starts the motor 5, so that the motor 5 starts when there are fewer frozen items in the freezing chamber 12, thereby defrosting the evaporator 22. This minimizes the impact on the storage temperature and the quality of the frozen items, thus avoiding any impact on the quality of the frozen items in the cold storage 1.

[0082] When the evaporator 22 is defrosting, the electric rotating rod 43 is electrically connected to the distance sensor, causing the electric rotating rod 43 to start. As the electric rotating rod 43 rotates, the collection box 4 on it rotates synchronously until the collection box 4 rotates from a vertical state to a horizontal state, and the collection box 4 is located below the evaporator 22. Then, the water on the evaporator 22 flows into the collection chamber 41 and is discharged through the collection pipe 45. This achieves the effect of collecting the water on the evaporator 22 and avoids the water flowing to the ground of the freezing chamber 12, which is difficult to clean. At the same time, if the water is not cleaned, it will easily cause fogging in the cold storage 1, causing water to drip from the ceiling of the cold storage 1, which will affect the quality of the frozen products.

[0083] When the rotating shaft 51 rotates, the cam 52 on it rotates. Since the cam 52 abuts against the two mating rods 61 and is engaged by the second spring 58, the two branch pipes 56 slide back and forth along the sliding groove 42, thereby spraying water evenly on the evaporator 22, which further improves the defrosting efficiency and quality of the evaporator 22.

[0084] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent cold storage energy-saving device, comprising a cold storage (1), an evaporator (22), and several shelves (3), wherein the cold storage (1) is provided with a cold storage door (11), characterized in that: The cold storage (1) is fixedly connected to a partition (15), which divides the cold storage (1) into a freezing chamber (12) and a fitting chamber (13). Each shelf (3) is equipped with an item detection sensor. An electric push rod (21) is fixedly connected to the fitting chamber (13). A connecting plate (2) is fixedly connected to the output end of the electric push rod (21). The item detection sensor is electrically connected to the electric push rod (21). The cold storage (1) is equipped with an adaptive mechanism for determining the area of ​​the freezing zone based on whether there are frozen products on the shelf (3). The connecting plate (2) is an L-shaped plate. The connecting plate (2) is attached to the freezing cavity (12). The connecting plate (2) passes through the freezing cavity (12) and extends to the outside of the cold storage (1). The adaptive mechanism includes a plurality of limiting grooves (34) opened on the freezing chamber (12), each limiting groove (34) is slidably connected to the corresponding shelf (3), each shelf (3) is fixedly connected to a fixing plate (31), each fixing plate (31) is fixedly connected to a stop rod (33), each stop rod (33) is sleeved with a first spring (32), and the two ends of each first spring (32) are fixedly connected to the corresponding fixing plate (31) and the cold storage (1) respectively; The adaptive mechanism also includes an auxiliary cavity (14) opened on the cold storage (1), the auxiliary cavity (14) and the mating cavity (13) are connected, a mating plate (23) is slidably connected on the auxiliary cavity (14), the mating plate (23) is fixedly connected to the connecting plate (2), the mating plate (23) is provided with an inclined surface (24), and the abutment (33) abuts against the mating plate (23).

2. The intelligent cold storage energy-saving device according to claim 1, characterized in that: The cold storage (1) is provided with an adjustment mechanism for adjusting the refrigeration power of the evaporator (22) according to the area of ​​the freezing chamber (12). The adjustment mechanism includes a distance sensor fixedly connected to the cold storage (1). The distance sensor detects the distance of the connecting plate (2) extending out of the cold storage (1). The evaporator (22) is fixedly connected to the freezing chamber (12). The distance sensor is electrically connected to the evaporator (22).

3. The intelligent cold storage energy-saving device according to claim 2, characterized in that: The freezing chamber (12) is provided with a defrosting mechanism for defrosting the evaporator (22) when there are few frozen items. The defrosting mechanism includes a motor (5) fixedly connected to the auxiliary chamber (14). The motor (5) is electrically connected to the distance sensor. The output end of the motor (5) is fixedly connected to a rotating shaft (51). A pump gear (63) is fixedly connected to the rotating shaft (51). A support plate (64) is fixedly connected to the freezing chamber (12). A pump body (53) is fixedly connected to the support plate (64). A pump gear ring (62) is rotatably connected inside the pump body (53). The pump gear ring (62) meshes with the pump gear (63). The pump body (53) and the rotating shaft (51) are not on the same axis.

4. The intelligent cold storage energy-saving device according to claim 3, characterized in that: The defrosting mechanism also includes an inlet pipe (54), a drain pipe (55), and two branch pipes (56). The inlet pipe (54) is connected to the pump body (53). The end of the inlet pipe (54) away from the pump body (53) is connected to an external water supply mechanism. The drain pipe (55) is connected to the end of the pump body (53) away from the inlet pipe (54). The two branch pipes (56) are connected to the drain pipe (55). Each branch pipe (56) is fixedly connected to a nozzle (57) at the end away from the drain pipe (55). The nozzle (57) faces the evaporator (22). A one-way valve (59) is fixedly connected to both the inlet pipe (54) and the drain pipe (55).

5. The intelligent cold storage energy-saving device according to claim 4, characterized in that: The defrosting mechanism also includes a hot defrosting assembly, which works in conjunction with the evaporator (22).

6. The intelligent cold storage energy-saving device according to claim 4, characterized in that: The freezing chamber (12) is provided with a collection mechanism for collecting water from the evaporator (22). The collection mechanism includes two connecting blocks (44) fixedly connected to the freezing chamber (12). Each connecting block (44) is rotatably connected to an electric rotating rod (43). Both electric rotating rods (43) are electrically connected to a distance sensor. A collection box (4) is fixedly connected to both electric rotating rods (43). A collection cavity (41) is opened on the collection box (4). A collection pipe (45) is connected to the collection cavity (41). The end of the collection pipe (45) away from the collection cavity (41) is connected to an external recycling mechanism.

7. The intelligent cold storage energy-saving device according to claim 6, characterized in that: The collection box (4) is provided with an auxiliary mechanism for evenly spraying water onto the evaporator (22). The auxiliary mechanism includes a sliding groove (42) opened on the collection box (4). Two branch pipes (56) are slidably connected to the sliding groove (42). A second spring (58) is fixedly connected to each branch pipe (56). One end of each second spring (58) away from the branch pipe (56) is fixedly connected to the sliding groove (42). A support block (6) is fixedly connected to each branch pipe (56). A matching rod (61) is fixedly connected to each support block (6). A cam (52) is fixedly connected to the rotating shaft (51). The cam (52) abuts against the two matching rods (61).

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