Modified atmosphere fresh-keeping cabinet
By setting up a ring-shaped preservation tank and a humidification tank inside the freezer, installing preservation pipes and humidification pipes, and utilizing a covering layer and detection equipment, the problems of uneven gas distribution and pipe interference in the freezer were solved, achieving uniform preservation and efficient storage of meat.
Patent Information
- Application Number
- CN202422941627.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-30
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-30
AI Technical Summary
The uneven distribution of refrigeration gases in existing freezers and the interference between the pipes and food affect the preservation effect and quality of meat.
A ring-shaped preservation compartment and a humidification compartment are installed inside the freezer, along with preservation pipes and humidification pipes. A covering layer is used to prevent the pipes from coming into contact with the food. Detection equipment and support frames are installed inside the freezer to achieve uniform distribution and detection of gas and humidity.
It achieves uniform distribution of preservative gases and humidity, avoids interference between pipes and food, improves the preservation effect and quality of meat, and facilitates the installation and cleaning of the equipment.
Smart Images
Figure CN223512337U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of preservation equipment technology, specifically relating to a modified atmosphere preservation cabinet. Background Technology
[0002] As people's living standards improve, they are paying increasing attention to food quality and safety, especially for high-demand but perishable foods like meat. To extend the shelf life and freshness of meat, it is typically quick-frozen and refrigerated to prevent enzyme decomposition, oxidation, and microbial growth. This keeps the meat in a low-temperature environment, preventing spoilage and ensuring its freshness. Current technology usually utilizes freezers for quick-freezing and preservation. However, during freezer storage, the cooling effect causes significant moisture loss, severely impacting the meat's freshness and color. The meat may gradually turn grayish-black, affecting its quality.
[0003] Current freezers are connected to gas supply equipment that provides preservative gases and atomized water vapor to the freezer to ensure the freshness of meat and maintain humidity inside the freezer. Typically, the current gas supply pipes either run directly into the freezer or extend into the freezer. Direct connection to the freezer results in uneven distribution of preservative gases inside the freezer, while extending the pipes into the freezer can cause interference with the meat and other food items being preserved. Summary of the Invention
[0004] This invention addresses the problem that existing freezers use pipes for preserving gas and regulating humidity that either run directly into the freezer or extend into its interior. Direct connection to the freezer results in uneven gas distribution, while pipes extending into the freezer can interfere with the food being preserved, such as meat. The invention provides a modified atmosphere storage freezer that creates corresponding preservation and humidification compartments within the freezer body to house the preservation and humidification pipes, effectively preventing interference between pipes extending into the freezer and the meat.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A modified atmosphere storage cabinet includes a cabinet body, with an installation cabinet fixedly mounted on one side of the cabinet body. The installation cabinet contains a gas supply device, a humidification device, and a detection device. The gas supply device provides preservative gas to the cabinet body, the humidification device regulates the humidity inside the cabinet, and the detection device detects the preservative gas content, temperature, and humidity inside the cabinet. The cabinet body has an annular preservation trough and a humidification trough, which are vertically aligned. A preservation pipe is installed in the preservation trough, and a humidification pipe is installed in the humidification trough. Multiple air inlets are evenly distributed around the inner sides of the preservation and humidification pipes. The outlet of the gas supply device is connected to the preservation pipe, and the outlet of the humidification device is connected to the humidification pipe. By fixing the installation cabinet and its internal equipment to the cabinet body as a complete unit, operation and transportation are more convenient. Furthermore, the preservation and humidification troughs inside the cabinet body are for installing corresponding pipes, preventing interference between the pipes and food items such as meat.
[0007] Preferably, a bracket is provided above the installation cabinet. The bracket includes support rods and support frames. Multiple support rods are fixedly installed on the top of the installation cabinet, and multiple support frames arranged vertically are fixedly installed between the support rods. Food ingredients can be placed on the support frames for display or temporary storage after being taken out of the cabinet.
[0008] Preferably, the gas supply equipment includes an oxygen generator, a carbon dioxide cylinder, and a mixing chamber. The outlet of the oxygen generator is connected to the mixing chamber, the outlet of the carbon dioxide cylinder is connected to the mixing chamber, and the outlet of the mixing chamber is connected to a preservation pipe. Oxygen is provided by the oxygen generator, and carbon dioxide gas is provided by the carbon dioxide cylinder. After being mixed in the mixing chamber, the mixture is delivered to the cabinet as a preservation gas to ensure the freshness of the meat inside the cabinet.
[0009] Preferably, the humidification device includes a water tank and a fan. A mist generator is installed inside the water tank, and a fan is installed on the top of the water tank. The outlet of the fan is connected to a humidification pipe. The fan delivers the water mist generated by the mist generator in the water tank to the cabinet to regulate the humidity inside the cabinet.
[0010] Preferably, the detection device includes multiple sensors to detect the temperature, humidity, and concentration of preservative gas inside the cabinet.
[0011] Preferably, the cabinet is provided with at least one partition, which divides the cabinet into several areas to facilitate the classified storage of different meat ingredients.
[0012] Preferably, the installation cabinet has a door on the side away from the cabinet body.
[0013] Preferably, a covering layer is fixedly installed on the inner wall of the cabinet. The covering layer is integrally formed with the cabinet body. The covering layer seals the preservation tank and the humidification tank. The covering layer has multiple preservation holes and humidification holes circumferentially opened. The multiple preservation holes are evenly distributed along the axial direction of the preservation tube, and the multiple humidification holes are evenly distributed along the axial direction of the humidification tube. The covering layer prevents meat and other food products from contacting the preservation tube or the humidification tube. The preservation holes and humidification holes ensure that the preservation gas and the humidification gas enter the cabinet body evenly.
[0014] Preferably, multiple uprights are fixedly installed on the two opposite inner walls of the cabinet. The uprights have a U-shaped cross-section, and each upright has multiple perforations evenly distributed vertically. Multiple support blocks can be detachably installed on each upright. Multiple support frames are installed inside the cabinet. Multiple support frames located on one side of the partition form a group. The multiple support frames in each group are spaced vertically apart. Each support frame is installed on a corresponding group of support blocks. By adjusting the height of the corresponding support blocks, the spacing between the support frames can be adjusted, thereby allowing for layered storage of food.
[0015] The beneficial effects of this utility model through the above technical solution are as follows:
[0016] 1. This utility model has a mounting cabinet fixedly installed on one side of the cabinet body, and an air supply device and a humidification device are installed in the mounting cabinet. Compared with the split design, it is easier to transport, move and install the refrigerator and its auxiliary equipment (such as air supply device, humidification device, etc.).
[0017] 2. This utility model effectively avoids interference between the pipes extending into the cabinet and the meat or other food items placed inside by opening a preservation slot for installing the preservation pipe and a humidification slot for installing the humidification pipe. This facilitates the placement and removal of food items from the cabinet. At the same time, the preservation pipe and humidification pipe are arranged around the inside of the cabinet, and the air inlets on the pipes allow the preservation gas and humidification mist to quickly and evenly diffuse within the cabinet.
[0018] 3. This utility model has a detection slot inside the cabinet and a sensor installed inside the detection slot to detect the temperature, humidity, oxygen, carbon dioxide concentration, etc. inside the cabinet, so as to improve the detection effect. At the same time, an air extraction device is set on the side to detect the extracted gas and then circulate it back into the cabinet.
[0019] 4. This utility model effectively prevents food inside the cabinet from contacting the refrigeration tube and the humidification tube by setting a covering layer on the inner wall of the cabinet, thereby making the cabinet easier to clean.
[0020] 5. This utility model, by setting multiple uprights and supports inside the cabinet, allows for the installation of multiple support frames as needed. Furthermore, the height of the corresponding support frames can be easily adjusted by adjusting the height of the supports. This enables layered and categorized storage of ingredients such as meat inside the cabinet. On the other hand, the height of two adjacent support frames can be adjusted according to the size of the ingredients to be stored, thus adapting to the storage space requirements of different ingredients. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .
[0022] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .
[0023] Figure 3 This is a structural diagram of the practical usage. Figure 3 .
[0024] Figure 4 This is a schematic diagram of the structure of the present invention without the cabinet door. Figure 1 .
[0025] Figure 5 This is a schematic diagram of the structure of the present invention without the cabinet door. Figure 2 .
[0026] Figure 6 This is a schematic diagram of the humidification pipe installation of this utility model.
[0027] Figure 7 This is a schematic diagram of the installation structure of the food preservation tube of this utility model.
[0028] Figure 8 This is a schematic diagram of the structure of this utility model after the covering layer and the upright are installed. Figure 1 .
[0029] Figure 9 This is a schematic diagram of the structure of this utility model after the covering layer and the upright are installed. Figure 2 .
[0030] Figure 10 This is a schematic diagram of the structure of the support frame after installation.
[0031] Figure 11 This is a schematic diagram of the structure where the support block is installed on the upright.
[0032] Figure 12 This is a schematic diagram of the structure of the support block of this utility model.
[0033] The attached diagram is labeled as follows: 1 is the cabinet body, 2 is the installation cabinet, 3 is the preservation tank, 4 is the humidification tank, 5 is the preservation pipe, 6 is the humidification pipe, 7 is the support rod, 8 is the support frame, 9 is the oxygen generator, 10 is the carbon dioxide cylinder, 11 is the mixing box, 12 is the water tank, 13 is the fan, 14 is the partition, 15 is the cabinet door, 16 is the preservation hole, 17 is the humidification hole, 18 is the upright, 19 is the perforation, 20 is the support block, and 21 is the support frame. Detailed Implementation
[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0035] like Figures 1 to 7 As shown, this embodiment provides a modified atmosphere storage cabinet, including a cabinet body 1. The cabinet body 1 has an annular preservation tank 3 and a humidification tank 4, which are vertically aligned. A preservation tube 5 is installed in the preservation tank 3, and a humidification tube 6 is installed in the humidification tank 4. Multiple air inlets are evenly distributed along the inner side of both the preservation tube 5 and the humidification tube 6. The preservation tube 5 and the humidification tube 6 are arranged circumferentially along the inner side of the cabinet body 1. The preservative gas delivered to the preservation tube 5 and the water mist delivered to the humidification tube 6 are evenly discharged into the cabinet body 1 through their respective air inlets. Simultaneously, the multiple circumferentially arranged air inlets ensure rapid diffusion of the preservative gas and water mist within the cabinet body 1. The method involves introducing preservative gases to regulate the oxygen and carbon dioxide levels within the freezer compartment 1, thereby maintaining the color and freshness of the meat in the short term. Carbon dioxide inhibits the growth of aerobic bacteria in the meat, preventing their growth and reproduction. Oxygen combines with myoglobin, giving the meat a vibrant color, and also inhibits the growth and reproduction of anaerobic bacteria and mold, thus preserving the meat. Water mist is introduced into the freezer compartment 1 to regulate humidity, replenishing the moisture of the frozen meat and preventing excessive moisture loss, thus maintaining the meat's color in the short term.
[0036] A mounting cabinet 2 is fixedly installed on one side of the cabinet body 1. A cabinet door 15 is located on the side of the mounting cabinet 2 away from the cabinet body 1. The mounting cabinet 2 contains a gas supply device, a humidification device, and a detection device. The gas supply device's outlet is connected to a preservation pipe 5. The gas supply device is used to provide preservation gas to the cabinet body 1, that is, to deliver preservation gas into the preservation pipe 5, thereby regulating the oxygen and carbon dioxide content inside the cabinet body 1 to preserve meat. The gas supply device includes an oxygen generator 9, a carbon dioxide cylinder 10, and a mixing chamber 11. The outlet of the oxygen generator 9 is connected to the mixing chamber 11. The oxygen generator can produce… Oxygen is generated and piped to the mixing chamber 11. Two oxygen generators 9 are provided. The oxygen generator 6 adopts the JYD-LX small industrial oxygen generator from Shandong Jingyida Environmental Protection Technology Co., Ltd. The outlet of the carbon dioxide cylinder 10 is connected to the mixing chamber 11. The preservative gas in the carbon dioxide cylinder 10 is piped to the mixing chamber 11 and mixed with oxygen in the mixing chamber 11 to form a preservative gas. The outlet of the mixing chamber 11 is connected to the preservation pipe 5. The preservative gas in the mixing chamber 11 is piped to the preservation pipe 5 and enters the cabinet 1 through multiple air inlets on the preservation pipe 5.
[0037] The humidification device is used to regulate the humidity inside the cabinet 1. It delivers water mist into the cabinet 1 to regulate the humidity. The air outlet of the humidification device is connected to the humidification pipe 6. The humidification device includes a water tank 12 and a fan 13. Water is introduced into the water tank 12. A fogger is installed inside the water tank 12. The fogger uses an ultrasonic atomizer to form water mist from the water in the water tank 16. A fan 13 is installed on the top of the water tank 12. The outlet of the fan 13 is connected to the humidification pipe 6. The fan 13 delivers the water mist from the water tank 12 to the humidification pipe 6 and enters the cabinet 1 through multiple air inlets on the humidification pipe 6. The fan 13 is a CJXF-50MM duct fan from Henan Xiayi County Super Cyclone Electronic Technology Co., Ltd.
[0038] The detection equipment is used to detect the content of preservative gases, temperature, and humidity inside the cabinet 1. The detection equipment includes multiple sensors (not shown in the figure), including a temperature and humidity sensor, an oxygen concentration detector, and a carbon dioxide concentration detector. In this embodiment, the temperature and humidity sensor is a Zhaotaisheng ZTS-3008-WS-N01 temperature and humidity sensor, the oxygen concentration detector is an Aosong AO-09 oxygen concentration detector, and the carbon dioxide concentration detector is a Prisen PR-3002-CO2-N01 carbon dioxide concentration detector. Multiple detection slots are opened on the inner wall of the cabinet 1, and each detection slot is equipped with a corresponding sensor. The temperature, humidity, oxygen, and carbon dioxide concentrations inside the cabinet 1 are detected by multiple sensors, and the amount of each gas or water mist delivered to the cabinet 1 is adjusted.
[0039] As one possible implementation, an isolation net is provided outside the detection slot to prevent meat and other substances inside the cabinet from interfering with the sensor and affecting the installation and detection results.
[0040] A bracket is provided above the installation cabinet 2. The bracket includes support rods 7 and support frames 8. Multiple support rods 7 are fixedly installed on the top of the installation cabinet 2. Multiple support frames 8 are fixedly installed between the support rods 7. The support frames 8 are plate-shaped structures with grooves on the upper side, which are used to temporarily place meat and other ingredients taken out of the cabinet 1 for food display and observation.
[0041] The cabinet 1 is provided with at least one partition 14, which divides the cabinet 1 into multiple areas, so that different meats or other agricultural products can be placed in different areas, which facilitates the classified storage of different meat products.
[0042] As one possible implementation, mounting slots (not shown in the figure) are provided on both opposite side panels inside the cabinet 1. The mounting slots are located at the upper end of the cabinet 1. One mounting slot is equipped with an ultraviolet lamp for disinfecting food inside the cabinet 1, and the other mounting slot is equipped with a lighting lamp for lighting inside the cabinet 1.
[0043] As one possible implementation method, such as Figure 8-12 As shown, a covering layer is fixedly installed on the inner wall of the cabinet 1. The covering layer is integrally formed with the cabinet 1. The covering layer seals the preservation tank 3 and the humidification tank 4. The covering layer has multiple preservation holes 16 and humidification holes 17 circumferentially opened. The multiple preservation holes 16 are evenly distributed along the axial direction of the preservation tube 5, and the multiple humidification holes 17 are evenly distributed along the axial direction of the humidification tube 6. By setting the covering layer, the preservation tube 5 and the humidification tube 6 are separated from the interior of the cabinet 1, avoiding contact between the meat and other food stored in the cabinet 1 and the preservation tube 5 and the humidification tube 6. The preservation gas delivered by the preservation tube 5 enters the cabinet 1 through the multiple preservation holes 16 and diffuses quickly. The humidification gas delivered by the humidification tube 6 enters the cabinet 1 through the multiple humidification holes 17 and diffuses quickly.
[0044] Multiple uprights 18 are fixedly installed on the two opposite inner walls of the cabinet 1. The uprights 18 have a U-shaped cross-section. Each upright has multiple through holes 19 evenly distributed vertically. The through holes 19 penetrate the horizontal bar portion of the U-shaped cross-section of the corresponding upright 18. Multiple support blocks 20 can be detachably installed on each upright 18. Multiple support frames 21 are installed inside the cabinet 1. Multiple support frames 21 located on one side of the partition 14 form a group. Multiple support frames 21 in each group are spaced vertically. Each support frame 21 is installed on a corresponding multiple support blocks 20. There are eight uprights 18. Each group of support frames 21 corresponds to four uprights 18. The four support blocks 20 on the same horizontal plane of the four uprights 18 jointly support a support frame 21. The support frame 21 includes a ring rod and multiple support rods. The four corners of the ring rod are located on the corresponding support blocks 20. Multiple support rods are fixedly installed above the ring rod. Meat and other food ingredients can be placed on the support rods for storage.
[0045] The support block 20 includes a horizontal plate, an inclined plate, a column, a first locking block, and a second locking block. One end of the horizontal plate is fixedly connected to the first locking block, and the other end is fixedly connected to the inclined plate. One end of the inclined plate is fixedly connected to the second locking block, and the other end is fixedly connected to the horizontal plate. The first locking block and the second locking block are vertically corresponding. The first locking block includes a horizontal part and a vertical part. The horizontal part passes through the corresponding through hole 19 and its upper side is fixedly connected to the vertical part. The second locking block passes through the through hole 19 below the horizontal part. The locking block 20 and the column 18 are locked together through the vertical part. The inclined plate ensures effective support for the locking block 20. The column is fixedly installed on the upper part of the horizontal plate. The annular rod passes between the column and the vertical part. Correspondingly, the annular rod passes between the column and the corresponding column 18. The column limits the position of the support frame 21.
[0046] As one possible implementation, limit rods are provided on both sides of the support block, and the limit rods are located on both sides of the corresponding upright 18 to limit the support block 20.
[0047] When in use, this utility model delivers oxygen and carbon dioxide to the mixing box 11 through the oxygen generator 9 and carbon dioxide cylinder 10. After mixing in the mixing box 11, the gas is used to create a preservation gas. The preservation gas is then delivered to the preservation pipe 5 and evenly delivered to the cabinet 1 through multiple air inlets on the preservation pipe 5. The gas diffuses in the cabinet 1 to achieve the preservation and storage of food in the cabinet 1.
[0048] Simultaneously, the fogger and fan 13 are activated. The fogger forms water mist from the water tank 12 and delivers it to the humidification pipe 6 via the fan 13. The mist is then evenly distributed into the cabinet 1 through multiple air inlets on the humidification pipe 6 and diffuses within the cabinet 1 to regulate the humidity inside the cabinet 1. At the same time, multiple sensors detect the temperature, humidity, oxygen concentration, and carbon dioxide concentration inside the cabinet 1 and adjust the gas supplied to the cabinet 1 accordingly to ensure that the oxygen concentration inside the cabinet 1 is above 30% and the carbon dioxide content is above 10%.
[0049] Meanwhile, the installation of the preservation tank 3 and the humidification tank 4 prevents the preservation pipe 5 and the humidification pipe 6 from interfering with the meat or other ingredients inside the cabinet 1.
[0050] During food storage, turning on the ultraviolet lamp and lighting can facilitate the disinfection of the food and allow for constant observation of the food inside cabinet 1.
[0051] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.
Claims
1. A modified atmosphere storage cabinet, comprising a cabinet body (1), characterized in that, An installation cabinet (2) is fixedly installed on one side of the cabinet (1). An air supply device, a humidification device and a detection device are installed inside the installation cabinet (2). The air supply device is used to supply fresh-keeping gas to the cabinet (1). The humidification device is used to adjust the humidity inside the cabinet (1). The detection device is used to detect the content of fresh-keeping gas, temperature and humidity inside the cabinet (1). The cabinet (1) has an annular preservation tank (3) and a humidification tank (4) inside. The preservation tank (3) and the humidification tank (4) are vertically aligned. The preservation tank (3) is equipped with a preservation pipe (5), and the humidification tank (4) is equipped with a humidification pipe (6). The preservation pipe (5) and the humidification pipe (6) are evenly distributed with multiple air inlets on their inner sides. The air outlet of the air supply device is connected to the preservation pipe (5), and the air outlet of the humidification device is connected to the humidification pipe (6).
2. A modified atmosphere storage cabinet according to claim 1, characterized in that, A bracket is provided above the installation cabinet (2). The bracket includes a support rod (7) and a support frame (8). Multiple support rods (7) are fixedly installed on the top of the installation cabinet (2). Multiple support frames (8) are fixedly installed between the support rods (7).
3. A modified atmosphere storage cabinet according to claim 1, characterized in that, The gas supply equipment includes an oxygen generator (9), a carbon dioxide cylinder (10), and a mixing box (11). The outlet of the oxygen generator (9) is connected to the mixing box (11), the outlet of the carbon dioxide cylinder (10) is connected to the mixing box (11), and the outlet of the mixing box (11) is connected to the preservation pipe (5).
4. A modified atmosphere storage cabinet according to claim 1, characterized in that, The humidification device includes a water tank (12) and a fan (13). A fogger is installed inside the water tank (12), and a fan (13) is installed on the top of the water tank (12). The outlet end of the fan (13) is connected to the humidification pipe (6).
5. A modified atmosphere storage cabinet according to claim 1, characterized in that, The detection equipment includes multiple sensors.
6. A modified atmosphere storage cabinet according to claim 1, characterized in that, At least one partition (14) is provided inside the cabinet (1).
7. A modified atmosphere storage cabinet according to claim 1, characterized in that, The installation cabinet (2) has a cabinet door (15) on the side away from the cabinet body (1).
8. A modified atmosphere storage cabinet according to claim 1, characterized in that, A covering layer is fixedly installed on the inner wall of the cabinet (1). The covering layer is integrally formed with the cabinet (1). The covering layer seals the preservation tank (3) and the humidification tank (4). The covering layer has multiple preservation holes (16) and humidification holes (17) circumferentially opened. The multiple preservation holes (16) are evenly arranged along the axial direction of the preservation tube (5), and the multiple humidification holes (17) are evenly arranged along the axial direction of the humidification tube (6).
9. A modified atmosphere storage cabinet according to claim 6, characterized in that, Multiple uprights (18) are fixedly arranged on the two opposite inner walls of the cabinet (1). The uprights (18) have a U-shaped cross section. Multiple perforations (19) are evenly arranged on each upright (18). Multiple support blocks (20) can be detachably arranged on each upright (18). Multiple support frames (21) are arranged inside the cabinet (1). Multiple support frames (21) located on one side of the partition (14) form a group. Multiple support frames (21) in each group are arranged at intervals. Each support frame (21) is set on the corresponding multiple support blocks (20).