A type of cold chain temporary storage refrigerator for seafood

Abstract

This invention relates to the field of refrigeration equipment, and more particularly to a cold chain temporary storage refrigerator for seafood, comprising a cabinet body, an internal refrigeration cavity, a cavity within the cabinet body wall, a filling liquid inside the cavity, the cavity being located outside the refrigeration cavity, a uniformly distributed evaporator tube slidably connected inside the cavity, condensers located inside and outside the cabinet body wall, a second evaporator tube at the bottom of the refrigeration cavity, both ends of the second evaporator tube connected to telescopic tubes, the top telescopic ends of the telescopic tubes connected to the first evaporator tube, the ends of the connecting pipes being rotatably connected to the first evaporator tube, and fixing blocks installed on both the front and rear sides of the first evaporator tube. This invention can achieve all-round refrigeration coverage inside the refrigeration cavity, avoiding local refrigeration blind spots, ensuring that seafood in different locations inside the cavity is in a suitable low-temperature environment, and guaranteeing the storage quality of seafood.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment, and more particularly to a temporary cold storage cabinet for seafood. Background Technology

[0002] In the context of seafood cold chain transportation and temporary storage, existing refrigerated cabinets suffer from numerous problems that urgently need to be addressed. Most are bulky and lack flexible mobility, making them unsuitable for multi-location receiving and transshipment needs during transport. Storage and retrieval operations are inefficient due to cumbersome door opening methods. The refrigeration system design has significant flaws; the evaporator tubes are mostly fixed, leading to refrigeration blind spots at the bottom and sides of the refrigeration chamber, resulting in uneven temperature distribution that directly affects the quality of stored seafood. When new seafood needs to be added, the fixed refrigeration structure cannot adjust the refrigeration focus, maintaining full-load operation, causing energy waste and increased costs. Furthermore, insufficient cold transfer during refrigeration, coupled with inadequate insulation, further exacerbates energy consumption. Localized overcooling can cause the cabinet walls to crack due to temperature stress, shortening equipment lifespan and increasing maintenance costs. These problems severely restrict the safety and economy of seafood cold chain temporary storage. Therefore, we propose a seafood cold chain temporary storage refrigerated cabinet to solve the aforementioned problems. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the prior art by proposing a cold chain temporary storage refrigerator for seafood.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a cold chain temporary storage refrigerator for seafood, comprising a cabinet body, a refrigerator cavity inside the cabinet body, a cavity inside the cabinet body wall, a filling liquid inside the cavity, the cavity being located outside the refrigerator cavity, a uniformly distributed evaporator tube slidably connected inside the cavity, condensers being arranged inside and outside the cabinet body wall, a second evaporator tube being arranged at the bottom of the refrigerator cavity, each end of the second evaporator tube being connected to a telescopic tube, and the top telescopic end of each telescopic tube being connected to an evaporator tube. The evaporator tube 1 has a fixing block 1 installed on both the front and rear sides. The middle of the end of the fixing block 1 away from the refrigeration cavity is fixedly connected to a fixing shaft. The upper and lower fixing blocks 1 are connected by a connecting rod through the fixing shaft. The two ends of the connecting rod are connected by a rotating shaft. The connecting rod is rotatably connected to the fixing shaft and the rotating shaft. The middle of the front and rear sides of the lowest side of the evaporator tube 1 is fixedly connected to a threaded block. The threaded rod is threadedly connected to the threaded block. The bottom front and rear sides of the cabinet body are provided with installation compartments.

[0005] Preferably, all the evaporator tubes are connected by connecting pipes, and the connecting pipes are all two-section designs with the middle sections connected by sliding pipes. The ends of the connecting pipes are rotatably connected to the evaporator tubes.

[0006] Preferably, each of the installation compartments is equipped with a servo motor, the top drive end of each servo motor is connected to the bottom of a threaded rod, and the threaded rod is rotatably connected to the cabinet wall.

[0007] Preferably, a second fixing block is provided on the side of the lowest fixing block away from the threaded block, and the second fixing blocks are installed on both sides of the lowest evaporator tube.

[0008] Preferably, connecting blocks are fixedly connected to both sides of the second fixing block, and piston plates are fixedly connected to the end of each connecting block away from the second fixing block, and multiple plate compartments are provided on both sides of the cavity.

[0009] Preferably, each of the plate compartments is slidably connected to a piston plate, and each of the plate compartments has a film in the middle of the side closest to the second fixed block.

[0010] Preferably, each of the films has a groove in the middle, each of the connecting blocks passes through the groove, and each of the connecting blocks is slidably connected to the groove.

[0011] Preferably, each of the plates is equipped with a nozzle in the middle of the side of the plate compartment away from the film, and the nozzles are connected to the inside of the plate compartment. The nozzles in the upper and lower parts have opposite outlets.

[0012] Preferably, a top plate is installed on the top of the cabinet, and multiple sliding doors are slidably connected to the inner side of the top plate via slide rails. All sliding doors are located on the upper part of the refrigeration chamber, and rollers are installed at the bottom corners of the cabinet.

[0013] Preferably, an equipment compartment is provided on one side of the bottom of the cabinet, and a compressor assembly is installed inside the equipment compartment. The equipment compartment has evenly distributed heat dissipation vents on one side.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] To address the issue of uneven cooling coverage in different areas of the refrigeration chamber: Evaporator tube 2 is installed at the bottom of the refrigeration chamber, which can target the bottom area for cooling. Evaporator tube 1 inside the cabinet wall is responsible for cooling the side areas. The two work together to achieve all-round cooling coverage inside the refrigeration chamber, avoiding local cooling blind spots and ensuring that seafood in different locations inside the chamber is in a suitable low-temperature environment, thus guaranteeing the quality of seafood storage.

[0016] Solving the problem of adapting to different storage capacities for cooling needs: When the freezer already contains frozen seafood and new seafood needs to be added, the position of the evaporator tube can be adjusted according to the amount of seafood stored in the refrigeration chamber. The servo motor drives the threaded rod to rotate, and with the linkage of the threaded block and the connecting rod, all evaporator tubes can be raised and lowered synchronously to adjust their position and distribution density. This allows for targeted and rapid cooling of newly added seafood, avoiding energy waste caused by full-load cooling. It adapts to the differentiated cooling needs under different storage capacities and is more in line with actual usage scenarios.

[0017] Solving the problem of balancing refrigeration efficiency and cost: During the refrigeration process, the filling liquid inside the cavity can fully conduct the temperature of the evaporator tubes, forming a completely enveloping refrigeration layer around the perimeter of the refrigeration cavity. Combined with the insulation material of the cabinet walls, this effectively blocks external heat intrusion and reduces cold loss. This allows the freezer to reduce its operating power while ensuring sufficient cooling, thus reducing energy consumption and cost, achieving an optimal balance between refrigeration efficiency and operating costs.

[0018] To address the issues of uneven temperature distribution and cabinet damage within the refrigeration chamber: When evaporator tube one moves, it drives the connecting block and piston plate synchronously via fixing block two. As the piston plate moves within the compartment, it uses nozzles with opposite upper and lower outlets to draw in or spray out the filling liquid, disturbing the flow of the filling liquid within the chamber and ensuring a more uniform temperature distribution around the refrigeration chamber. This prevents localized overcooling of evaporator tube one, which could lead to cracking of the refrigeration chamber's inner wall material due to excessive temperature differences, thus extending the freezer's lifespan and reducing equipment maintenance costs. Attached Figure Description

[0019] Figure 1 This is a frontal three-dimensional structural diagram of a seafood cold chain temporary storage refrigerator according to the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of a seafood cold chain temporary storage refrigerator according to the present invention;

[0021] Figure 3 This is a schematic diagram of the piping structure of a seafood cold chain temporary storage refrigerator according to the present invention;

[0022] Figure 4 This is a partial structural diagram of the sliding tube and connecting tube of a seafood cold chain temporary storage refrigerator according to the present invention.

[0023] Figure 5 This is a partial structural diagram of the compartment and connecting rod of a seafood cold chain temporary storage refrigerator according to the present invention.

[0024] Figure 6 This is a partial structural diagram of the fixing block two and piston plate of a seafood cold chain temporary storage refrigerator according to the present invention;

[0025] Figure 7This is a partial structural diagram of the threaded block and threaded rod of a seafood cold chain temporary storage refrigerator according to the present invention.

[0026] Figure 8 for Figure 6 Enlarged view of point A in the middle.

[0027] 101. Cabinet; 102. Roller; 103. Sliding door; 104. Top mount; 105. Evaporator tube one; 106. Threaded rod; 107. Servo motor; 108. Installation compartment; 109. Refrigeration chamber; 110. Telescopic tube; 111. Evaporator tube two; 112. Condenser; 113. Plate compartment; 114. Sliding tube; 115. Connecting tube; 116. Fixing block two; 117. Connecting block; 118. Spray nozzle; 119. Fixing shaft; 120. Fixing block one; 121. Connecting rod; 122. Rotating shaft; 123. Piston plate; 124. Threaded block; 125. Cavity; 126. Heat dissipation vent; 127. Film; 128. Groove. Detailed Implementation

[0028] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0029] like Figures 1-8 The illustrated cold chain storage refrigerator for seafood includes a cabinet body 101, an internal refrigeration chamber 109, and a cavity 125 within the wall of the cabinet body 101. The cavity 125 is filled with a low-temperature refrigerant liquid, specifically a 40%-50% (w / w) ethylene glycol or propylene glycol solution. The cavity 125 is located outside the refrigeration chamber 109. Evaporator tubes 105 are slidably connected inside the cavity 125 and are uniformly distributed. A condenser 112 is installed inside and outside the wall of the cabinet body 101. A condenser is mounted on the top of the cabinet body 101. There is a top seat 104, and multiple sliding doors 103 are slidably connected to the inside of the top seat 104 via slide rails. The sliding doors 103 are all located on the upper part of the refrigeration chamber 109. Rollers 102 are installed at the bottom corners of the cabinet body 101. An equipment compartment is set on one side of the bottom of the cabinet body 101. The compressor assembly is installed inside the equipment compartment. The compressor assembly is the core refrigeration component of a conventional freezer. Referring to the existing technology, it will not be described in detail. A heat dissipation vent 126 is evenly distributed on one side of the equipment compartment. The compressor assembly is connected to the evaporator tube 105, the evaporator tube 211 and the condenser 112.

[0030] Furthermore, in specific implementation, during seafood transportation, people can receive and store seafood using a freezer. The casters 102 at the bottom of the freezer body 101 facilitate movement of the freezer. When storing or retrieving seafood, people can open the freezer by sliding the door 103, revealing the internal refrigeration chamber 109, thus facilitating the storage and retrieval of seafood. After placing the seafood in the freezer, people can connect the power supply to the freezer and start the compressor refrigeration unit inside the freezer body 101. The operation of the compressor refrigeration unit utilizes the evaporator tube 105 and the condenser 112 to refrigerate the freezer. The evaporator tube 111 refrigerates the bottom area of ​​the refrigeration chamber 109, and the evaporator tube 105 refrigerates the inner edge area of ​​the refrigeration chamber 109.

[0031] The refrigerator compartment 109 has an evaporator tube 2 111 at the bottom, and each end of the evaporator tube 2 111 is connected to a telescopic tube 110. The top telescopic end of each telescopic tube 110 is connected to an evaporator tube 105. The evaporator tubes 105 are connected to each other by connecting tubes 115. Each connecting tube 115 is a two-section design and is connected in the middle by a sliding tube 114. The ends of the connecting tubes 115 are rotatably connected to the evaporator tubes 105. Fixing blocks 120 are installed on both the front and rear sides of the evaporator tubes 105. A fixing shaft 119 is fixedly connected to the middle of the end of the fixing block 120 away from the refrigerator compartment 109. The upper and lower fixing blocks 120 are connected to each other. All are connected to a connecting rod 121 via a fixed shaft 119. Both ends of the connecting rod 121 are connected via a rotating shaft 122. The connecting rod 121 is rotatably connected to the fixed shaft 119 and the rotating shaft 122. Threaded blocks 124 are fixedly connected to the middle of the front and rear sides of the lowest evaporator tube 105. Threaded rods 106 pass through the middle of each threaded block 124. Threaded rods 106 are threadedly connected to threaded blocks 124. Installation chambers 108 are opened on the front and rear sides of the bottom of the cabinet 101. Servo motors 107 are installed inside each installation chamber 108. The top drive end of each servo motor 107 is connected to the bottom of the threaded rod 106. Threaded rods 106 are rotatably connected to the wall of the cabinet 101.

[0032] Furthermore, in practical implementation, during normal full-capacity storage, direct cooling can be achieved through the evaporator tube 105 and the filling liquid. If frozen seafood is already present in the freezer and additional seafood needs to be added, the position of the evaporator tube 105 inside the cavity 125 can be adjusted according to the amount of seafood stored inside the refrigeration chamber 109. The servo motor 107 drives the threaded rod 106 to rotate, which in turn drives the bottom threaded block 124 to move up and down. During this process, the connecting rod 121 drives the remaining evaporator tubes 105 to move synchronously, thus moving the evaporator tubes... The evaporator tube 105 moves upward synchronously, allowing for adjustment of its position and density. This enables the focus of cooling to be adjusted according to actual needs, providing concentrated and rapid cooling for newly added seafood. This is beneficial for practical use. During the cooling process, the filling liquid inside the cavity 125 ensures sufficient heat conduction to the evaporator tube 105, allowing the cavity 125 to form a fully enclosed cooling layer around the refrigeration cavity 109. This ensures sufficient cooling, while the insulation material in the cabinet 101 wall effectively prevents external heat intrusion, thus effectively reducing operating power and cost during the freezing process.

[0033] Among them, the bottommost fixing block 120 is provided with a fixing block 2 116 on the side away from the threaded block 124. The fixing blocks 2 116 are installed on both sides of the bottommost evaporator tube 105. The fixing blocks 2 116 are fixedly connected to both sides of the fixing blocks 2 116. The end of the connecting blocks 117 away from the fixing blocks 2 116 is fixedly connected to the piston plate 123. Multiple plate compartments 113 are provided on both sides of the cavity 125. The piston plate 123 is slidably connected inside the plate compartments 113. The middle of the side of the plate compartments 113 near the fixing blocks 2 116 is provided with a film 127. The middle of the film 127 is provided with a slot 128. The connecting blocks 117 pass through the slot 128 and are slidably connected to the slot 128. The middle of the side of the plate compartments 113 away from the film 127 is provided with a spray pipe 118. The spray pipe 118 is connected to the inside of the plate compartments 113. The outlets of the upper and lower spray pipes 118 are opposite.

[0034] Furthermore, in specific implementation, when the evaporator tube 105 moves, the connecting block 117 and the piston plate 123 will move synchronously through the fixing block 116. When the piston plate 123 moves inside the plate compartment 113, it will draw or spray the filling liquid inside the cavity 125 through the nozzle 118 on the side of the plate compartment 113. When the piston plate 123 moves upward, the nozzle 118 on the lower side of the piston plate 123 will draw the filling liquid, and the nozzle 118 on the upper side will force the filling liquid out of the plate compartment 113. Conversely, the direction of the nozzle 118 drawing and spraying will be reversed, thereby disturbing the filling liquid inside the cavity 125, achieving uniform cooling around the periphery of the refrigeration cavity 109, avoiding overcooling of the local area where the evaporator tube 105 is located during daily use, which would cause uneven temperature cracking of the inner wall material of the refrigeration cavity 109, and is beneficial to the long-term use of the freezer.

[0035] Working principle:

[0036] During seafood transportation, seafood can be received and stored in a refrigerated display case. The casters 102 at the bottom of the case 101 facilitate movement. When storing or retrieving seafood, the sliding door 103 opens the refrigerated compartment 109, allowing for easy insertion and removal of the seafood. After placing the seafood in the refrigerated display case, the power supply is connected, activating the compressor refrigeration unit inside the case 101. The compressor refrigeration unit utilizes the evaporator tube 105 and condenser 112 to cool the refrigerated display case. In actual use, the evaporator tube 111 cools the bottom area of ​​the refrigerated compartment 109. Evaporator tube 105 enables cooling of the periphery of the refrigeration chamber 109. In actual use, when the freezer is fully filled, it can directly cool the liquid filling through the evaporator tube 105. If there is already frozen seafood in the freezer and additional seafood needs to be added, the position of the evaporator tube 105 inside the chamber 125 can be adjusted according to the amount of seafood stored in the refrigeration chamber 109. The servo motor 107 drives the threaded rod 106 to rotate, which in turn drives the bottom threaded block 124 to move up and down. During this process, the connecting rod 121 drives the other evaporator tubes 105 to move synchronously, causing them to move upwards. The movement of the evaporator tube 105 allows for adjustment of its position and density, enabling the focus of cooling to be adjusted according to actual needs. This allows for concentrated and rapid cooling of newly added seafood, which is beneficial for practical use. During the cooling process, the filling liquid inside the cavity 125 ensures sufficient heat conduction to the evaporator tube 105, allowing the cavity 125 to form a fully enclosed cooling layer around the perimeter of the refrigeration cavity 109. This ensures sufficient cooling, while the insulation material in the cabinet 101 effectively prevents external heat intrusion, thus reducing operating power and costs during freezing. When the evaporator tube 105 moves, it will drive the connecting block 117 to the evaporator tube 105 via the fixing block 116. The piston plate 123 moves synchronously. When the piston plate 123 moves inside the plate compartment 113, it draws or sprays the filling liquid inside the cavity 125 through the nozzle 118 on the side of the plate compartment 113. When the piston plate 123 moves upward, the nozzle 118 on the lower side of the piston plate 123 draws the filling liquid, and the nozzle 118 on the upper side forces the filling liquid out of the plate compartment 113. Conversely, the direction of the nozzle 118 drawing and spraying is reversed, which can disturb the filling liquid inside the cavity 125 and achieve uniform cooling around the refrigeration cavity 109. This avoids the phenomenon of uneven temperature and cracking of the inner wall material of the refrigeration cavity 109 caused by the local area where the evaporator tube 105 is located during daily use, which is beneficial to the long-term use of the freezer.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A cold chain temporary storage refrigerator for seafood, comprising a cabinet (101), characterized in that: The inside of the cabinet (101) is provided with a refrigeration cavity (109), the inside of the wall of the cabinet (101) is provided with a cavity (125), the inside of the cavity (125) is provided with a filling liquid, the cavity (125) is provided outside the refrigeration cavity (109), a plurality of uniformly distributed evaporator tubes one (105) are slidably connected in the cavity (125), the inside and outside of the wall of the cabinet (101) is provided with a condenser (112), the bottom of the refrigeration cavity (109) is provided with an evaporator tube two (111), the end of the evaporator tube two (111) is communicated with a telescopic pipe (110), the top telescopic end of the telescopic pipe (110) is communicated with the evaporator tube one (105), the front and rear and left and right sides of the evaporator tube one (105) are provided with fixed blocks one (120), the middle of the end of the fixed blocks one (120) away from the refrigeration cavity (109) is fixedly connected with a fixed shaft (119), the fixed shaft (119) is connected with a connecting rod (121) between the upper and lower adjacent two fixed blocks one (120), the two side ends of the connecting rod (121) are connected through a rotating shaft (122), the connecting rod (121) is rotatably connected with the fixed shaft (119) and the rotating shaft (122), the middle of the front and rear sides of the lowermost evaporator tube one (105) is fixedly connected with a threaded block (124), the middle of the threaded block (124) penetrates through a threaded rod (106), the threaded rod (106) is threadedly connected with the threaded block (124), the front and rear sides of the inner bottom of the cabinet (101) are provided with mounting bins (108), the threaded rod (106) can drive the bottommost threaded block (124) to move up and down, in the process, the connecting rod (121) can drive the remaining evaporator tubes one (105) to move synchronously, and the evaporator tube one (105) is driven to move upward synchronously.

2. The cold chain temporary storage refrigerator for seafood according to claim 1, characterized in that: The upper and lower adjacent two evaporator tubes one (105) are connected and communicated through a connecting pipe (115), the connecting pipe (115) is designed in two sections and connected through a sliding pipe (114) in the middle, and the end of the connecting pipe (115) is rotatably connected with the evaporator tube one (105).

3. The cold chain temporary storage refrigerator for seafood according to claim 2, characterized in that: The inside of the mounting bin (108) is provided with a servo motor (107), the top driving end of the servo motor (107) is connected with the bottom of the threaded rod (106), and the threaded rod (106) is rotatably connected with the wall of the cabinet (101).

4. The cold chain temporary storage refrigerator for seafood according to claim 1, characterized in that: The side of the lowermost fixed block one (120) away from the threaded block (124) is provided with a fixed block two (116), and the fixed block two (116) is installed on the two sides of the lowermost evaporator tube one (105).

5. The cold chain temporary storage freezer for seafood according to claim 4, characterized in that: The two ends of the fixed block two (116) are fixedly connected with a connecting block (117), the end of the connecting block (117) away from the fixed block two (116) is fixedly connected with a piston plate (123), and the two sides of the cavity (125) are provided with a plurality of plate bins (113).

6. The cold chain temporary storage freezer for seafood according to claim 5, characterized in that: The plate bin (113) is internally slidably connected with a piston plate (123), and the plate bin (113) is provided with a rubber sheet (127) at the middle of one side close to the fixed block two (116).

7. The cold chain temporary storage freezer for seafood according to claim 6, characterized in that: The rubber sheet (127) is provided with a notch (128) at the middle, the connecting block (117) penetrates through the notch (128), and the connecting block (117) is slidably connected with the notch (128).

8. The cold chain temporary storage refrigerator for seafood according to claim 7, characterized in that: The plate bin (113) is provided with a nozzle (118) at the middle of one side away from the rubber sheet (127), and the nozzle (118) is connected with the inside of the plate bin (113).

9. The cold chain temporary storage freezer for seafood according to claim 1, wherein: The cabinet body (101) is provided with a top seat (104) at the top, a plurality of sliding doors (103) are slidably connected with the inside of the top seat (104) through slide rails, the sliding doors (103) are arranged on the upper part of the refrigeration cavity (109), and the cabinet body (101) is provided with a plurality of rollers (102) at the bottom corners.

10. The cold chain temporary storage refrigerator for seafood according to claim 9, characterized in that: The cabinet body (101) is provided with an equipment bin on one side of the inner bottom, the equipment bin is internally provided with a compressor assembly, and the equipment bin is provided with uniformly distributed heat dissipation openings (126) on one side.

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