Food cold storage and fresh-keeping device
By using radiation-refrigerated food fresh storage device in a vacuum environment, suspending the substance to be refrigerated and controlling the vacuum rate, the problem of destruction of the cellular structure of fresh food in traditional refrigeration methods is solved, and the temperature is synchronously reduced and the food quality is ensured.
Patent Information
- Application Number
- CN202422016817.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-08-20
AI Technical Summary
Traditional heat conduction or thermal convection refrigeration methods can easily destroy the internal cellular structure of fresh food, resulting in evaporation of water and surface icing, affecting the taste and nutritional value of the food.
The radiation refrigeration method is adopted in a vacuum environment. The magnet control assembly is used to suspend the refrigeration object in the sealed compartment. After the vacuum is formed by the exhaust component, the refrigeration component is radiated and refrigerated to avoid air flow and contact conduction. The vacuum rate is controlled in combination with the temperature and air pressure sensing unit to ensure that the internal and external temperatures are simultaneously reduced.
Effectively prevent the destruction of the cell structure of fresh food, avoid moisture evaporation and surface icing, and maintain the taste, flavor and nutritional value of the food.
Smart Images
Figure CN223216539U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of food preservation, and more specifically, relates to a food refrigeration and preservation device. Background Art
[0002] Currently, fresh food is mainly treated at low temperatures by heat conduction or convection during refrigeration and controlled atmosphere storage. However, the traditional heat conduction or convection refrigeration method, which cools fresh food from the outside to the inside, can easily damage the internal cell structure of the fresh food. In addition, the air flow and contact conduction involved in the refrigeration process can easily cause water evaporation and surface ice formation in the fresh food, thereby affecting the taste, flavor and nutritional value of the fresh food. Utility Model Content
[0003] The purpose of this application is to provide a food refrigeration and preservation device, which aims to solve the problem that the refrigeration process of fresh food from the outside to the inside in the current traditional heat conduction or heat convection refrigeration method can easily destroy the internal cell structure of the fresh food, and the air flow and contact conduction involved in the refrigeration process can easily cause evaporation and surface freezing of the fresh food, thereby affecting the taste, flavor and nutritional value of the fresh food.
[0004] To achieve the above-mentioned purpose, a food refrigeration and preservation device is provided, including a sealed cabin, a storage disk, a magnetic control component, an exhaust component and a refrigeration component. The storage disk is arranged inside the sealed cabin and is used to hold the refrigerated objects. The magnetic control component is magnetically connected to the storage disk and is used to drive the storage disk to float inside the sealed cabin. The exhaust component is connected to the inside of the sealed cabin and is used to evacuate the inside of the sealed cabin to form a vacuum environment. The refrigeration component is used to cool the refrigerated objects located inside the sealed cabin.
[0005] In one embodiment, the food refrigeration and preservation device further includes a temperature sensing unit and an air pressure sensing unit. The temperature sensing unit is used to monitor the surface temperature T1 of the refrigerated object, and the air pressure sensing unit is used to monitor the internal air pressure P1 of the sealed cabin.
[0006] In one embodiment, the food refrigeration and fresh-keeping device further includes a height sensing unit, and the temperature sensing unit and the height sensing unit are both disposed on the suspension magnetic disk.
[0007] In one embodiment, the food refrigeration and preservation device also includes a support base, the sealed cabin is fixedly arranged on the support base, the magnetic control component is located outside the sealed cabin and fixedly arranged on the support base, and the refrigeration component is arranged outside the sealed cabin and fixedly arranged on the sealed cabin.
[0008] In one embodiment, the magnetic control component is arranged inside the support base, the sealed cabin is a spherical structure, a plurality of limiting columns are provided on the top of the support base, and the plurality of limiting columns cooperate to surround and fix the sealed cabin on the support base, and a spherical protrusion adapted to the shape of the sealed cabin structure is provided at the bottom of the magnetic disk.
[0009] In one embodiment, the refrigeration assembly includes a refrigeration coil, and the refrigeration coil is evenly wound around the outer wall of the sealed cabin.
[0010] In one embodiment, an opening is provided on a lower side of the sealed cabin adjacent to the support base to avoid the refrigeration coil, and a door is provided at the opening for opening or closing the opening.
[0011] In one embodiment, the food refrigeration and preservation device further includes an inflation component, which is connected to the interior of the sealed cabin, and the control module is communicatively connected to the inflation component for driving the inflation component to fill the sealed cabin with inert gas.
[0012] In one embodiment, the air extraction component is connected to the upper side of the sealed cabin away from the support base, and the air filling component is connected to the lower side of the sealed cabin adjacent to the support base.
[0013] The beneficial effect of the food refrigeration and preservation device provided by the present application is that, compared with the existing technology, by placing the object to be refrigerated on the storage disk, the magnetic control component storage disk and the object to be refrigerated are suspended together in a sealed cabin, and after the vacuum component vacuums the inside of the sealed cabin to form a vacuum environment, the refrigeration component can perform radiation cooling on the object to be refrigerated located on the storage disk, and then the internal and external temperatures of the object to be refrigerated are synchronously reduced by radiation cooling, preventing the damage to the cell structure inside the object to be refrigerated, and avoiding the evaporation of water and surface ice of the object to be refrigerated due to air flow and contact conduction during the refrigeration process, thereby effectively ensuring the taste, flavor and nutritional value of the object to be refrigerated. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0015] Figure 1 A schematic structural diagram of a food refrigeration and preservation device provided in one embodiment of the present application;
[0016] Figure 2 for Figure 1 The diagram shows a cross-sectional structure of a sealed cabin in a food refrigeration and preservation device.
[0017] In the figure: 10, food refrigeration and preservation device; 100, sealed cabin; 110, cabin door; 200, storage disk; 210, spherical protrusion; 300, magnetic control component; 400, exhaust component; 500, refrigeration component; 610, temperature sensor unit; 620, air pressure sensor unit; 630, height sensor unit; 700, support base; 710, limit column; 800, inflation component. DETAILED DESCRIPTION
[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.
[0019] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.
[0020] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.
[0022] Please also refer to Figure 1 and Figure 2, a food refrigeration and preservation device 10 provided in an embodiment of the present application is now described. The food refrigeration and preservation device 10 includes a sealed cabin 100, a storage disk 200, a magnetic control assembly 300, an exhaust assembly 400, and a refrigeration assembly 500. The storage disk 200 is disposed inside the sealed cabin 100 and is used to hold objects to be refrigerated (not shown in the figure). The magnetic control assembly 300 is used to magnetically connect to the storage disk 200 to drive the storage disk 200 to float inside the sealed cabin 100 after holding the objects to be refrigerated. The exhaust assembly 400 is used to communicate with the sealed cabin 100 to evacuate the interior of the sealed cabin 100 to form a vacuum environment. The refrigeration assembly 500 is used to cool the objects to be refrigerated that are located on the storage disk 200 and float inside the sealed cabin 100.
[0023] It should be noted that when the vacuum component 400 vacuums the sealed cabin 100, as the air pressure P1 inside the sealed cabin 100 drops, the saturated evaporation temperature T1 of water inside the sealed cabin 100 drops synchronously based on the drop in air pressure P1. Therefore, the excessive vacuuming rate of the vacuum component 400 can easily lead to the removal of water contained in the refrigerated items while vacuuming. Therefore, when vacuuming the sealed cabin 100 through the vacuum component 400, it is necessary to gradually reduce the vacuuming rate of the vacuum component 400 and simultaneously keep the refrigeration component 500 in the refrigeration working state, thereby preventing the refrigerated items from losing too much water.
[0024] The beneficial effect of the food refrigeration and preservation device 10 provided in the present application is that, compared with the prior art, by placing the object to be refrigerated on the container disk 200, the magnetic control component 300 drives the container disk 200 and the object to be refrigerated to be suspended in the sealed cabin 100, and after the vacuum component 400 evacuates the inside of the sealed cabin 100 to form a vacuum environment, the refrigeration component 500 can perform radiation cooling on the object to be refrigerated located on the container disk 200. In this way, the internal and external temperatures of the object to be refrigerated can be reduced synchronously through radiation cooling, preventing damage to the cell structure inside the object to be refrigerated, and avoiding air flow and contact conduction during the refrigeration process that cause water evaporation and surface ice formation in the object to be refrigerated, thereby ensuring the taste, flavor and nutritional value of the object to be refrigerated.
[0025] Furthermore, in the present embodiment, the above-mentioned food refrigeration and preservation device 10 further includes a temperature sensing unit 610 and an air pressure sensing unit 620, wherein the temperature sensing unit 610 is used to monitor the surface temperature T1 of the object to be refrigerated in real time, and the air pressure sensing unit 620 is used to monitor the internal air pressure P1 of the sealed cabin 100 in real time, so as to gradually reduce the vacuuming rate of the vacuuming component 400 during the vacuuming process of the vacuuming component 400, thereby making the real-time water saturation evaporation temperature T1 corresponding to the real-time air pressure P1 inside the sealed cabin 100 during the vacuuming process of the sealed cabin 100 always greater than the real-time surface temperature T1 of the object to be refrigerated; further, in the present embodiment, the above-mentioned food refrigeration and preservation device 10 further includes a control module (not shown in the figure), and the control module is respectively The temperature sensing unit 610, the air pressure sensing unit 620, the vacuum assembly 400 and the refrigeration assembly 500 are communicatively connected, so that when it is necessary to evacuate the interior of the sealed cabin 100 to form a vacuum environment, the control module is suitable for synchronously turning on the vacuum assembly 400 and the refrigeration assembly 500, and gradually reducing the vacuuming rate of the vacuum assembly 400 during the vacuuming process of the vacuum assembly 400, thereby making the sealed cabin 100 in the vacuuming process. The real-time water saturation evaporation temperature T1 corresponding to the real-time air pressure P1 inside the sealed cabin 100 is always greater than the real-time surface temperature T1 of the refrigerated object, thereby effectively avoiding the extraction of moisture contained in the refrigerated object when the sealed cabin 100 is evacuated by the vacuum assembly 400, thereby ensuring the taste, flavor and nutritional value of the refrigerated object.
[0026] Furthermore, in the present embodiment, the food refrigeration and preservation device 10 further includes a height sensing unit 630, the temperature sensing unit 610 and the height sensing unit 630 are respectively arranged on the container disk 200, and the air pressure sensing unit 620 is arranged on the vacuum assembly 400, so as to facilitate the control of the container disk 200 to be suspended at a constant height in the central area inside the sealed cabin 100; further, in the present embodiment, the control module is respectively communicated with the height sensing unit 630 and the magnetic control assembly 300, and for various situations in which the container disk 200 contains different objects to be refrigerated, the control module is suitable for controlling the container disk 200 to be suspended at a constant height in the central area inside the sealed cabin 100.
[0027] Furthermore, in this embodiment, the above-mentioned sealed cabin body 100 is an aluminum spherical structure, and the food refrigeration and preservation device 10 also includes a support base 700. The sealed cabin body 100 is fixedly arranged on the support base 700. The magnetic control component 300 is located outside the sealed cabin body 100 and fixedly arranged on the support base 700. The refrigeration component 500 is located outside the sealed cabin body 100 and fixedly and evenly arranged on the sealed cabin body 100 to evenly cool the refrigerated items.
[0028] Furthermore, in this embodiment, the above-mentioned magnetic control component 300 is arranged inside the support base 700, and a plurality of lower limit columns 710 are provided on the top of the support base 700. The plurality of limit columns 710 cooperate to enclose and fix the sealed cabin 100 on the top of the support base 700, and a spherical protrusion adapted to the structural shape of the sealed cabin 100 is provided at the bottom of the storage disk 200, so that the storage disk 200 can be stably fixed on the inner wall of the sealed cabin 100 when it is in a non-suspended state.
[0029] Furthermore, in this embodiment, the refrigeration assembly 500 includes a refrigeration coil (not shown in the figure), which is evenly wound around the outer wall of the sealed cabin 100. Refrigeration gas or refrigeration liquid can be introduced into the refrigeration coil. The sealed cabin 100 is adjacent to the lower side of the support base 700 and is provided with an opening (not shown in the figure) that avoids the refrigeration coil. The opening is provided with a hatch 110 for opening or closing the opening, so that the object to be refrigerated can be placed on the storage disk 200 inside the sealed cabin 100 through the hatch 110, or the object to be refrigerated can be removed from the storage disk 200 inside the sealed cabin 100.
[0030] Furthermore, in this embodiment, the food refrigeration and preservation device 10 further includes an inflation component 800, wherein the inflation component 800 is connected to the interior of the sealed cabin 100, and the control module is communicatively connected to the inflation component 800, and the control module is adapted to drive the inflation component 800 to fill the interior of the sealed cabin 100 with inert gas (or nitrogen) to discharge the air inside the sealed cabin 100; it should be noted that when the inert gas (or nitrogen) is filled into the interior of the sealed cabin 100 by the inflation component 800, the exhaust component 400 needs to be opened synchronously to The sealed cabin 100 is evacuated to facilitate smooth entry of the inert gas (or nitrogen) into the sealed cabin 100, and then the sealed cabin 100 is pre-cooled by the refrigeration assembly 500. In this way, since the sealed cabin 100 is already filled with the inert gas (or nitrogen), no moisture will condense on the inner wall of the sealed cabin 100 or the magnetic disk 200 during the pre-cooling process (the heat conduction effect of moisture after condensation into ice is poor, which can easily affect the subsequent radiant cooling efficiency of the refrigerated objects), thereby improving the subsequent radiant cooling efficiency of the refrigerated objects.
[0031] Furthermore, in this embodiment, the above-mentioned vacuum assembly 400 is connected to the upper side of the sealed cabin 100 away from the support base 700, and the inflation assembly 800 is connected to the lower side of the sealed cabin 100 adjacent to the support base 700, and the vacuum assembly 400 and the inflation assembly 800 are respectively connected to the interior of the sealed cabin 100 through pagoda joints; in some other embodiments, the inflation assembly 800 is connected to the interior of the sealed cabin 100 through an opening after the hatch 110 of the sealed cabin 100 is opened.
[0032] In addition, a food refrigeration and preservation method provided in an embodiment of the present application is described. The food refrigeration and preservation method is applied to the food refrigeration and preservation device 10, and specifically includes the following steps:
[0033] The exhaust assembly 400 and the inflation assembly 800 are turned on, and the interior of the sealed cabin 100 is filled with inert gas (or nitrogen) through the inflation assembly 800. The exhaust assembly 400 and the inflation assembly 800 are then turned off, and the refrigeration assembly 500 is turned on to pre-cool the interior of the sealed cabin 100 for a predetermined time.
[0034] Place the object to be refrigerated on the object storage disk 200, and drive the object storage disk 200 to suspend the object to be refrigerated in the central area inside the sealed chamber 100, then open the vacuum assembly 400 to vacuum the inside of the sealed chamber 100;
[0035] When using the vacuum assembly 400 to vacuum the sealed cabin 100, gradually reduce the vacuum rate of the vacuum assembly 400 so that the real-time water saturation evaporation temperature T2 corresponding to the real-time air pressure P1 inside the sealed cabin 100 is always greater than the real-time surface temperature T1 of the refrigerated object, until the vacuum assembly 400 completes the vacuum operation inside the sealed cabin 100 and is closed.
[0036] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.
Claims
1. A food refrigeration and preservation device, characterized in that: The refrigeration device comprises a sealed cabin, a storage disk, a magnetic control assembly, an exhaust assembly and a refrigeration assembly. The storage disk is arranged inside the sealed cabin and is used to hold the objects to be refrigerated. The magnetic control assembly is magnetically connected to the storage disk and is used to drive the storage disk to suspend inside the sealed cabin. The exhaust assembly is connected to the inside of the sealed cabin and is used to evacuate the inside of the sealed cabin to form a vacuum environment. The refrigeration assembly is used to cool the objects to be refrigerated inside the sealed cabin.
2. The food refrigeration and preservation device according to claim 1, characterized in that: The food refrigeration and preservation device also includes a temperature sensing unit, an air pressure sensing unit and a control module. The control module is communicatively connected to the temperature sensing unit and the air pressure sensing unit respectively. The temperature sensing unit is used to monitor the surface temperature T1 of the refrigerated object, and the air pressure sensing unit is used to monitor the internal air pressure P1 of the sealed cabin.
3. The food refrigeration and preservation device according to claim 2, characterized in that: The food refrigeration and fresh-keeping device further comprises a height sensing unit, and both the temperature sensing unit and the height sensing unit are arranged on the food holding magnetic disk.
4. The food refrigeration and fresh-keeping device according to claim 3, characterized in that: The food refrigeration and preservation device also includes a support base, the sealed cabin is fixedly arranged on the support base, the magnetic control component is located outside the sealed cabin and fixedly arranged on the support base, and the refrigeration component is arranged outside the sealed cabin and fixedly arranged on the sealed cabin.
5. The food refrigeration and fresh-keeping device according to claim 4, characterized in that: The magnetic control component is arranged inside the support base, the sealed cabin is a spherical structure, a plurality of limiting columns are provided on the top of the support base, and the plurality of limiting columns cooperate to surround and fix the sealed cabin on the support base, and a spherical protrusion adapted to the structural shape of the sealed cabin is provided at the bottom of the storage disk.
6. The food refrigeration and preservation device according to claim 5, characterized in that: The refrigeration assembly includes a refrigeration coil, and the refrigeration coil is evenly wound on the outer wall of the sealed cabin.
7. The food refrigeration and fresh-keeping device according to claim 6, characterized in that: The sealed cabin is provided with an opening on one side of the lower portion adjacent to the support base, which is away from the refrigeration coil, and a door for opening or closing the opening is provided at the opening.
8. The food refrigeration and fresh-keeping device according to claim 7, characterized in that: The food refrigeration and preservation device further includes an inflation component, which is connected to the interior of the sealed cabin, and the control module is communicatively connected to the inflation component for driving the inflation component to fill the sealed cabin with inert gas.
9. The food refrigeration and fresh-keeping device according to claim 8, characterized in that: The air extraction component is connected to the upper side of the sealed cabin away from the support base, and the air filling component is connected to the lower side of the sealed cabin adjacent to the support base.