Water-free keep-alive device, control method thereof and refrigeration equipment

Abstract

The invention discloses a waterless keep-alive device, a control method thereof and refrigeration equipment, and relates to the technical field of cooling devices.The waterless keep-alive device comprises a keep-alive shell, a cooling module and an oxygen supply module; the keep-alive shell is provided with a sealable storage space; the cooling module is arranged on the keep-alive shell and is configured to cool the storage space; the oxygen supply module is arranged on the keep-alive shell and is configured to provide oxygen for the storage space. According to the technical scheme provided by the invention, the survival time of the aquatic products can be prolonged, so that keep-alive storage of the aquatic products is realized.

Description

Technical Field

[0001] The invention relates to the technical field of cooling devices, and in particular to a waterless keep-alive device and a control method thereof, and refrigeration equipment. Background Art

[0002] In the related art, the shelf life of aquatic products is extended by low-temperature storage. However, the quality of the food, especially shrimps, changes greatly after storage, and it is impossible to keep the aquatic products alive. Summary of the invention

[0003] The main purpose of the present invention is to provide a water-free survival device and a control method thereof, and a refrigeration device, aiming to prolong the survival time of aquatic products to achieve the survival storage of aquatic products.

[0004] To achieve the above object, the present invention provides a water-free keeping alive device, comprising: A life-preserving shell, wherein the life-preserving shell is provided with a sealable storage space; A cooling module, disposed in the keep-alive housing, configured to cool the storage space; an oxygen supply module, disposed in the life-preserving housing and configured to provide oxygen to the storage space; The cooling module comprises a heat conducting plate, which is disposed in the storage space and configured to cool the storage space; The life-keeping shell includes an outer shell and a drawer, the outer shell forms an installation cavity, one side of the outer shell is provided with an installation port connected to the installation cavity, the drawer is inserted into the installation cavity from the installation port, and is enclosed with the outer shell to form the storage space; the heat conduction plate is located above the drawer, and a cooling air duct is formed between the heat conduction plate and the inner top wall of the outer shell, and the outer shell is provided with an air inlet and an air outlet connected to the cooling air duct.

[0005] In one embodiment, the housing is further provided with a damper for opening or closing the air inlet.

[0006] In one embodiment, heat conducting fins are provided in the cooling air duct.

[0007] In one embodiment, the heat-conducting fins divide the cooling air duct into at least two sections of unit air ducts arranged at an angle, and two adjacent sections of the unit air ducts are connected to each other.

[0008] In one embodiment, the air inlet and the air outlet are respectively arranged on two adjacent side walls of the housing.

[0009] In one embodiment, the water-free keep-alive device further comprises: a temperature sensor, disposed on a side of the heat conducting plate away from the drawer, and configured to detect the temperature in the storage space; The oxygen sensor is disposed on a side of the heat conducting plate facing the drawer and is configured to detect the oxygen concentration in the storage space.

[0010] In one embodiment, the oxygen supply module comprises: an oxygen supply membrane assembly, disposed in the live-keeping housing, comprising a controlled atmosphere membrane, wherein the oxygen supply membrane assembly is configured to allow more oxygen in the air surrounding the controlled atmosphere membrane to pass through the controlled atmosphere membrane than nitrogen in the air surrounding the controlled atmosphere membrane; an oxygen delivery pipeline, one end of which is in communication with the modified atmosphere membrane, and the other end of which is in communication with the storage space; The air pump is configured to draw gas through the gas-controlled membrane and discharge the gas to the storage space through the oxygen supply pipeline.

[0011] In one embodiment, the life-preserving shell is provided with an oxygen inlet hole and a pressure relief valve connected to the storage space, and one end of the oxygen supply pipeline away from the oxygen supply membrane assembly is connected to the oxygen inlet hole.

[0012] In one embodiment, the oxygen inlet hole and the pressure relief valve are respectively arranged at diagonal positions of the life-preserving shell.

[0013] To achieve the above object, the present invention also provides a control method for a waterless keep-alive device, the control method comprising the following steps: Controlling the storage space to cool down at a target temperature gradient until the temperature of the storage space is within a target temperature range; Under the condition that the target temperature reduction gradient is met, controlling the oxygen concentration in the storage space to be within a target oxygen concentration range; The step of controlling the storage space to cool down at a target temperature gradient until the temperature of the storage space is within a target temperature range comprises: Controlling the storage space to cool down to a first preset temperature range and maintaining it for a first preset time period; The storage space is controlled to cool down to a target temperature range.

[0014] In one embodiment, the step of controlling the storage space to cool down to a first preset temperature range includes: Controlling the storage space to cool down to the first preset temperature range within a first preset time period, wherein the first preset time period is 1 hour to 2 hours; And / or, the step of controlling the storage space to cool down to a target temperature range includes: The storage space is controlled to cool down to a target temperature range within a second preset time period, and the second preset time period is 1 hour to 2 hours.

[0015] In one embodiment, the first preset temperature range is 12°C-15°C, and the target temperature range is 8°C-10°C.

[0016] In one embodiment, the step of controlling the oxygen concentration in the storage space to be within a target oxygen concentration range comprises: In the initial stage of controlling the temperature of the storage space to drop to a first preset temperature range, providing oxygen into the storage space; When the storage space is cooled to a first preset temperature range, the oxygen concentration in the storage space is within a target oxygen concentration range, and the target oxygen concentration range is 30% to 50%.

[0017] In one embodiment, the step of controlling the oxygen concentration in the storage space to be within a target oxygen concentration range further comprises: Controlling the storage space to cool down to an initial stage of a target temperature range, and providing oxygen into the storage space; When the storage space is cooled to a target temperature range, the oxygen concentration in the storage space is within a target oxygen concentration range, and the target oxygen concentration range is 30% to 50%.

[0018] To achieve the above object, the present invention further provides a refrigeration device, comprising: Equipment body; The water-free keep-alive device as described above is installed in the equipment body.

[0019] One or more technical solutions proposed in the present application have at least the following technical effects: by adopting a cooling module to control the storage space to be cooled with a target cooling gradient until the temperature of the storage space is within the target temperature range, and at the same time, under the condition of satisfying the target gradient cooling, that is, in the process of controlling the storage space to be cooled with a target cooling gradient, an oxygen supply module is adopted to control the oxygen concentration in the storage space to be within the target oxygen concentration range, so that different temperatures and oxygen concentrations can be created in the storage space by means of gradient cooling and oxygen supply, and the dissolved oxygen content in the gills of aquatic products can be increased, so that the aquatic products can be made to enter an inactive state without adding water, thereby achieving the purpose of reducing metabolism, so as to effectively prolong the survival time of aquatic products, thereby realizing the alive storage of aquatic products.

[0020] In addition, by utilizing the heat transfer principle of the heat conducting plate, the heat in the storage space is actively absorbed to accurately achieve the effect of cooling the storage space.

[0021] In addition, when the aquatic products in the storage space need to be cooled, the external cold air can be allowed to enter the cooling air duct from the air inlet. The cold air flowing through the cooling air duct absorbs the heat in the storage space through the heat conduction plate, so as to quickly cool down the storage space through the heat conduction plate. The gas after absorbing the heat eventually flows out from the air outlet. Under the continuous flow of cold air, the storage space can be controlled to be cooled with a target cooling gradient until the temperature of the storage space is within the target temperature range. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 A schematic structural diagram of an embodiment of a water-free keep-alive device provided by the present invention; Figure 2 A front view of an embodiment of a water-free keep-alive device provided by the present invention; Figure 3 for Figure 2 Sectional view at AA in the middle; Figure 4 A top view of an embodiment of a water-free keep-alive device provided by the present invention; Figure 5 for Figure 4 Sectional view at the middle BB; Figure 6 A schematic flow chart of an embodiment of a water-free keep-alive control method provided by the present invention; Figure 7 A schematic flow chart of one step of an embodiment of a water-free keep-alive control method provided by the present invention; Figure 8 A schematic flow chart of another step of an embodiment of the water-free keep-alive control method provided by the present invention; Fig. 9 A schematic diagram of another step flow chart of an embodiment of the water-free keep-alive control method provided by the present invention; Fig.10 The present invention provides a flow chart of another step of an embodiment of the water-free keep-alive control method.

[0024] Description of Figure Numbers:

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] In the related art, the shelf life of aquatic products is extended by low-temperature storage. However, the quality of the food, especially shrimps, changes greatly after storage, and it is impossible to keep the aquatic products alive.

[0030] Based on the above problems, the present invention proposes a waterless life-keeping device 100, which is intended to prolong the survival time of aquatic products to achieve the life-keeping storage of aquatic products. The waterless life-keeping device 100 can be specifically applied to refrigeration equipment such as household refrigerators, car refrigerators, and containers.

[0031] See also Figures 1 to 3 In one embodiment of the present invention, the waterless life-keeping device 100 includes a life-keeping shell 1 , a cooling module 30 and an oxygen supply module 40 .

[0032] The life-saving shell 1 is provided with a sealable storage space 21; the cooling module 30 is provided in the life-saving shell 1 and is configured to cool the storage space 21; the oxygen supply module 40 is provided in the life-saving shell 1 and is configured to provide oxygen to the storage space 21; The cooling module 30 includes a heat conducting plate 31 , which is disposed in the storage space 21 and configured to cool the storage space 21 ; The outer shell 10 is formed with an installation cavity 11, and a mounting port connected to the installation cavity 11 is provided on one side of the outer shell 10; the drawer 20 is inserted into the installation cavity 11 from the mounting port, and is enclosed with the outer shell 10 to form a storage space 21; the heat conduction plate 31 is located above the drawer 20, and a cooling air duct 30a is formed between the heat conduction plate 31 and the inner top wall of the outer shell 10, and the outer shell 10 is provided with an air inlet 12 and an air outlet 13 connected to the cooling air duct 30a.

[0033] In this embodiment, the life-keeping shell 1 can be a complete box, or it can include an outer shell 10 and a drawer 20. For example, the outer shell 10 is formed with an installation cavity 11, and a mounting port connected to the installation cavity 11 is provided on one side of the outer shell 10. The drawer 20 is inserted into the installation cavity 11 from the mounting port, and is enclosed with the outer shell 10 to form a storage space. The outer shell 10 is used to accommodate the drawer 20. When the drawer 20 is pulled out of the mounting port of the outer shell 10 to the outside of the mounting cavity 11, the opening of the drawer 20 can be exposed to the outside, so that the user can put the aquatic products into the drawer 20; when the drawer 20 is inserted into the mounting cavity 11 from the mounting port of the outer shell 10, the drawer 20 will be enclosed with the outer shell 10 to form a sealed storage space 21, so that the aquatic products are located in the storage space 21 for storage. The outer shell 10 can be a structure independent of the refrigeration equipment shell, or it can be a partial structure on the refrigeration equipment shell.

[0034] In actual application, the installation cavity 11 of the shell 10 can be used to accommodate one drawer 20, or it can be used to accommodate at least two independent drawers 20. In this way, different kinds of aquatic products can be placed in the at least two independent drawers 20 respectively to prevent different kinds of aquatic products from being confused with each other, thereby improving user satisfaction.

[0035] The specific structure of the cooling module 30 can be determined according to the actual situation, for example, an air cooling structure, a water cooling structure, an atomization structure or a spraying structure can be adopted. Specifically, the cooling module 30 can adopt the method of cooperating the heat conducting plate 31 with the cooling wind, or directly adopt the method of the energized heat conducting plate 31 or the cooling wind, or adopt the method of the cooling water channel to cool down the storage space 21, as long as the storage space 21 can be gradually cooled. The cooling module 30 is arranged in the outer shell 10, and its purpose is to perform a gradient cooling structure on the storage space 21, so as to cool the aquatic products in the storage space 21 with a target cooling gradient. It can be understood that the cooling module 30 can be arranged inside the outer shell 10, or it can be arranged on the outer surface of the outer shell 10, as long as it is ensured that the cooling module 30 can perform a gradient cooling on the storage space 21.

[0036] The specific structure of the oxygen supply module 40 can be determined according to the actual situation. For example, the gas-controlled membrane 411 can be used in combination with the vacuum pump 43, that is, the pressure swing adsorption oxygen production technology is used. The pressure swing adsorption oxygen production technology is a technology that separates nitrogen from the air through the adsorption of molecular sieves to obtain high-purity oxygen; or, the oxygen supply module 40 can also use an ion generator, which can produce ozone, positive and negative ions and other active ingredients. Ozone can be decomposed into oxygen to provide oxygen to the storage space 21; of course, the oxygen supply module 40 can also use other oxygen supply methods, as long as it can provide oxygen to the storage space 21. The oxygen supply module 40 is arranged in the housing 10, and its purpose is to provide oxygen to the storage space 21, so as to supply oxygen to the aquatic products in the storage space 21. It can be understood that the oxygen supply module 40 can be arranged inside the housing 10, or on the outer surface of the housing 10, as long as it is ensured that the oxygen supply module 40 can provide oxygen to the storage space 21.

[0037] In summary, the technical solution of the present invention adopts the cooling module 30 to control the storage space 21 to cool down with a target cooling gradient until the temperature of the storage space 21 is within the target temperature range. At the same time, under the condition of satisfying the target gradient cooling, that is, in the process of controlling the storage space 21 to cool down with a target cooling gradient, the oxygen supply module 40 is adopted to control the oxygen concentration in the storage space 21 to be within the target oxygen concentration range, so that different temperatures and oxygen concentrations can be created in the storage space 21 through gradient cooling and oxygen supply, thereby increasing the dissolved oxygen content in the gills of aquatic products, making the aquatic products enter an inactive state without adding water, thereby achieving the purpose of reducing metabolism, so as to effectively prolong the survival time of aquatic products, thereby realizing the survival storage of aquatic products.

[0038] In addition, by utilizing the heat transfer principle of the heat conducting plate 31 , the heat in the storage space 21 is actively absorbed to accurately achieve the effect of cooling the storage space 21 .

[0039] In addition, when it is necessary to cool the aquatic products in the storage space 21, the external cold air can be allowed to enter the cooling air duct 30a from the air inlet 12. The cold air flowing through the cooling air duct 30a absorbs the heat in the storage space 21 through the heat conducting plate 31, so as to quickly cool down the storage space 21 through the heat conducting plate 31. The gas after absorbing the heat eventually flows out from the air outlet 13. Under the continuous flow of cold air, the storage space 21 can be controlled to be cooled with a target cooling gradient until the temperature of the storage space 21 is within the target temperature range.

[0040] In actual application, the heat conducting plate 31 can be located above the drawer 20 to form a partition effect in the storage space 21; or, the heat conducting plate 31 can also be directly extended into the drawer 20, which can also cool the storage space 21.

[0041] Exemplarily, the heat conducting plate 31 may be an aluminum plate, or a copper plate or other material having good heat transfer effect.

[0042] In some embodiments, when the waterless keep-alive device 100 is applied to refrigeration equipment, such as a refrigerator, the cold air in the refrigerator body can be introduced into the cooling air duct 30a from the air inlet 12 and led out from the air outlet 13 under the power generated by the fan on the refrigerator body. Of course, in other embodiments, an additional fan can be separately designed on the housing 10, so that the cold air in the refrigerator body can also be introduced into the cooling air duct 30a from the air inlet 12 and led out from the air outlet 13 under the power generated by the fan.

[0043] In practical applications, the air inlet 12 and the air outlet 13 may be disposed on the same side of the housing 10 , or on different sides of the housing 10 .

[0044] See also Figure 3 In one embodiment of the present invention, the housing 10 is further provided with a damper (not shown) for opening or closing the air inlet 12 .

[0045] With such an arrangement, when the storage space 21 needs to be cooled, the air inlet 12 can be opened through the damper to allow cold air to enter the cooling air duct 30a from the air inlet 12; when the storage space 21 does not need to be cooled, the air inlet 12 can be closed through the damper to achieve precise control of the temperature in the storage space 21.

[0046] In actual application, the damper can be connected to the housing 10 by rotation, or by sliding or flipping, as long as the air inlet 12 can be opened or closed.

[0047] See also Figure 3 In one embodiment of the present invention, a heat conducting fin 32 is provided in the cooling air duct 30a.

[0048] With such arrangement, the design of the heat-conducting fins 32 can increase the heat exchange area between the gas flowing through the cooling air duct 30 a and the heat-conducting plate 31 , and can improve the cooling efficiency of the storage space 21 .

[0049] In practical applications, the shape and number of the heat-conducting fins 32 are not specifically limited, as long as they can increase the heat exchange area with the gas.

[0050] See also Figure 3 In one embodiment of the present invention, the heat conducting fins 32 divide the cooling air duct 30a into at least two sections of unit air ducts 30a1 arranged at an angle, and two adjacent sections of unit air ducts 30a1 are connected to each other.

[0051] In this way, the cooling air duct 30a is divided into at least two unit air ducts 30a1 set at an angle by using heat-conducting fins 32. After entering from the air inlet 12, the cold air can flow through at least two unit air ducts 30a1 in sequence along the arrangement direction of the at least two unit air ducts 30a1, which can effectively extend the length of the cooling air duct 30a, thereby increasing the path of the cold air flowing through the cooling air duct 30a, and can further improve the cooling efficiency of the storage space 21.

[0052] In actual application, the unit air duct 30a1 can extend along a straight line or a curve.

[0053] See also Figure 1 , Figure 3 In one embodiment of the present invention, the air inlet 12 and the air outlet 13 are respectively disposed on two adjacent side walls of the housing 10 .

[0054] Such an arrangement can effectively extend the length of the cooling air duct 30a while preventing the air blown out from the air outlet 13 from directly entering the cooling air duct 30a from the air inlet 12, so as to ensure that the gas flowing through the cooling air duct 30a has a cooling effect on the storage space 21.

[0055] See also Figure 3 In one embodiment of the present invention, the waterless preservation device 100 further includes a temperature sensor 51 and an oxygen sensor 52; the temperature sensor 51 is disposed on the side of the heat conducting plate 31 facing away from the drawer 20, and is configured to detect the temperature in the storage space 21; the oxygen sensor 52 is disposed on the side of the heat conducting plate 31 facing the drawer 20, and is configured to detect the oxygen concentration in the storage space 21.

[0056] In this configuration, by installing the temperature sensor 51 on the side of the heat conducting plate 31 facing away from the drawer 20, the temperature sensor 51 can directly detect the temperature of the heat conducting plate 31 to obtain the temperature of the storage space 21, so that the temperature sensor 51 is isolated from the aquatic products in the storage space 21, which can prevent the aquatic products in the storage space 21 from contaminating the temperature sensor 51, thereby extending the service life of the temperature sensor 51; in addition, by installing the oxygen sensor 52 on the side of the heat conducting plate 31 facing the drawer 20, the oxygen sensor 52 can directly detect the oxygen concentration in the storage space 21, thereby ensuring the accuracy of the oxygen sensor 52 in detecting the oxygen concentration.

[0057] In actual application, the temperature sensor 51 and the oxygen sensor 52 can be fixedly installed on the drawer 20 by bonding, screw connection, snap connection, etc., and no specific limitation is made here.

[0058] See also Figure 4 , Figure 5In one embodiment of the present invention, the oxygen supply module 40 includes an oxygen supply membrane assembly 41, an oxygen supply pipeline 42 and an air pump 43; the oxygen supply membrane assembly 41 is arranged in the life-keeping shell 1, and includes an atmosphere-controlled membrane 411. The oxygen supply membrane assembly 41 is configured to allow more oxygen in the air around the atmosphere-controlled membrane 411 to pass through the atmosphere-controlled membrane 411 than nitrogen in the air around the atmosphere-controlled membrane 411; one end of the oxygen supply pipeline 42 is connected to the atmosphere-controlled membrane 411, and the other end is connected to the material space; the air pump 43 is configured to draw in gas through the atmosphere-controlled membrane 411 and discharge it to the storage space 21 through the oxygen supply pipeline 42.

[0059] In this configuration, the vacuum pump 43 draws air, making the pressure in the storage space 21 lower than the pressure in the space around the modified atmosphere membrane 411, so that the oxygen in the space around the modified atmosphere membrane 411 can pass through the modified atmosphere membrane 411, and the vacuum pump 43 provides power for oxygen to pass through the modified atmosphere membrane 411, so that the oxygen in the space around the modified atmosphere membrane 411 can smoothly enter the storage space 21, so as to provide oxygen to the storage space 21 until the oxygen concentration in the storage space 21 reaches the target oxygen concentration range.

[0060] Exemplarily, the modified atmosphere membrane 411 may be a hollow fiber membrane.

[0061] In some embodiments, the oxygen supply membrane assembly 41 may further include an oxygen collection chamber 412, and the oxygen supply membrane assembly 41 is configured to allow more oxygen in the air around the modified atmosphere membrane 411 to pass through the modified atmosphere membrane 411 into the oxygen collection chamber 412 than nitrogen in the air around the modified atmosphere membrane 411; one end of the oxygen supply pipe 42 is connected to the oxygen collection chamber 412, and the other end is connected to the storage space; the air pump 43 is configured to extract gas from the oxygen collection chamber 412 and discharge it to the storage space 21 through the oxygen supply pipe 42. When the air pump 43 extracts air, the pressure in the oxygen collection chamber 412 is lower than the pressure in the space around the modified atmosphere membrane 411, so that the oxygen in the space around the modified atmosphere membrane 411 can enter the oxygen collection chamber 412 from the modified atmosphere membrane 411, so that the air pump 43 provides the power for oxygen to enter the oxygen collection chamber 412, so that the oxygen in the space around the modified atmosphere membrane 411 can smoothly enter the storage space 21.

[0062] See also Figure 1 , Figure 5 In one embodiment of the present invention, the life-preserving shell 1 is provided with an oxygen inlet hole 14 and a pressure relief valve 15 connected to the storage space 21 , and one end of the oxygen supply pipeline 42 away from the oxygen supply membrane assembly 41 is connected to the oxygen inlet hole 14 .

[0063] With such arrangement, the oxygen supply membrane assembly 41 can be installed outside the storage space 21, which can prevent the aquatic products in the storage space 21 from contaminating the oxygen supply membrane assembly 41, and by connecting the oxygen supply pipe 42 with the oxygen inlet hole 14, when it is necessary to provide oxygen to the storage space 21, the oxygen supply module 40 and the pressure relief valve 15 can be opened at the same time to allow oxygen to enter the storage space 21 from the oxygen inlet hole 14 through the oxygen supply pipe 42. When the pressure in the storage space 21 is too high, pressure relief can be achieved from the pressure relief valve 15 until the oxygen concentration in the storage space 21 reaches the target oxygen concentration range; when the oxygen concentration in the storage space 21 reaches the target oxygen concentration range, the oxygen supply module 40 and the pressure relief valve 15 are closed to maintain the oxygen concentration in the storage space 21 within the target oxygen concentration range.

[0064] In practical applications, the oxygen inlet hole 14 and the pressure relief valve 15 can be distributed on the same side of the life-saving shell 1 , or on different sides of the life-saving shell 1 .

[0065] See also Figure 1 , Figure 5 In one embodiment of the present invention, the oxygen inlet hole 14 and the pressure relief valve 15 are respectively arranged at diagonal positions of the life-saving shell 1 .

[0066] With such a configuration, after oxygen enters the storage space 21 from the oxygen inlet hole 14 , it can be quickly filled into the storage space 21 and diffused, so as to ensure the uniform distribution of oxygen in the storage space 21 .

[0067] Exemplarily, the oxygen inlet hole 14 and the pressure relief valve 15 can be disposed at diagonal positions of the housing 10. For example, the housing 10 has a front surface and a rear surface that are disposed opposite to each other, and a left surface and a right surface that are disposed at an angle, the oxygen inlet hole 14 can be disposed at the middle position of the upper side of the rear surface, or the oxygen inlet hole 14 can also be disposed at a corner position close to the left surface, and the pressure relief valve 15 can be disposed at a corner position of the right surface close to the lower side of the front surface.

[0068] The waterless life-keeping device 100 of the present application also includes a control device. The cooling module 30, the oxygen supply module 40, the temperature sensor 51 and the oxygen sensor 52 are all connected to the control device, and the control device can be used to control the operation of the above components.

[0069] The control device includes: at least one processor; and a memory connected to the at least one processor for communication, and a timer, etc.; wherein the memory stores instructions that can be executed by at least one processor, and the instructions are executed by at least one processor so that at least one processor can execute the control method of the cooking appliance in the following embodiment.

[0070] The control device in the embodiments of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., as well as fixed terminals such as digital TVs, desktop computers, etc.

[0071] The control device may include a processor (e.g., a central processing unit, a graphics processor, etc.), which may perform various appropriate actions and processes according to a program stored in a memory, where the program in the memory may be a program in a read-only memory (ROM) or a program loaded from a storage device into a random access memory (RAM). In the RAM, various programs and data required for the operation of the control device are also stored. The processor and the memory 1002 (ROM and RAM) are connected to each other via a bus. The input / output (I / O) interface is also connected to the bus. Generally, the following systems may be connected to the I / O interface: input devices such as a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices such as a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices such as a tape, a hard disk, etc.; and a communication device. The communication device may allow the control device to communicate with other devices wirelessly or wired to exchange data. Although the figure shows a control device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have alternatively.

[0072] In particular, according to the embodiments disclosed in the present application, the method flow described in the following embodiments can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from a memory. When the computer program is executed by a processor, the above-mentioned functions defined in the control method of the cooking appliance in the embodiment disclosed in the present application are executed.

[0073] The water-free keeping alive device 100 provided in the present application adopts the control method of the water-free keeping alive device 100 in the following embodiment, which can solve the technical problem of being unable to realize the keeping alive storage of aquatic products. Compared with the prior art, the beneficial effects of the water-free keeping alive device 100 provided in the present application are the same as the beneficial effects of the control method of the water-free keeping alive device 100 provided in the following embodiment, and other technical features in the water-free keeping alive device 100 are the same as the features disclosed in the following embodiment method, which will not be repeated here.

[0074] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a waterless life-keeping device 100, etc. The following takes the waterless life-keeping device 100 as an example to illustrate this embodiment and the following embodiments.

[0075] See also Figure 6 , Figure 7 The present invention also provides a control method of the waterless keep-alive device 100, and the waterless keep-alive control method comprises the following steps: S10, controlling the storage space 21 to cool down at a target temperature gradient until the temperature of the storage space 21 is within a target temperature range; S20, under the condition of satisfying the target temperature reduction gradient, controlling the oxygen concentration in the storage space 21 to be within the target oxygen concentration range; The step of controlling the storage space 21 to cool down at a target temperature gradient until the temperature of the storage space 21 is within the target temperature range includes: S11, controlling the storage space 21 to cool down to a first preset temperature range and maintaining the temperature for a first preset time period; S12, controlling the storage space 21 to cool down to a target temperature range.

[0076] In this embodiment, under the condition of satisfying the target temperature reduction gradient, that is, in the process of controlling the storage space 21 to cool down with the target temperature reduction gradient, the oxygen concentration in the storage space 21 is simultaneously controlled to be within the target oxygen concentration range, so as to create different temperatures and oxygen concentrations in the storage space 21 and increase the dissolved oxygen content in the gills of aquatic products.

[0077] The target cooling gradient refers to the ability to cool the temperature in multiple steps, such as one step, two steps, and three steps, to reach the target temperature range.

[0078] It can be understood that the water-free life-preserving device 100 controls the storage space 21 to cool down with a target cooling gradient by using the cooling module 30 until the temperature of the storage space 21 is within the target temperature range. At the same time, under the condition of satisfying the target gradient cooling, that is, in the process of controlling the storage space 21 to cool down with a target cooling gradient, the oxygen supply module 40 is used to control the oxygen concentration in the storage space 21 to be within the target oxygen concentration range. Therefore, different temperatures and oxygen concentrations can be created in the storage space 21 by means of gradient cooling and oxygen supply, thereby increasing the dissolved oxygen content in the gills of aquatic products, making the aquatic products enter an inactive state without adding water, thereby achieving the purpose of reducing metabolism, so as to effectively prolong the survival time of aquatic products, thereby realizing the life-preserving storage of aquatic products.

[0079] In addition, by first controlling the storage space 21 to cool down to a first preset temperature range, the aquatic products in the storage space 21 can enter a slowly active state from a highly active state; then the temperature in the storage space 21 is maintained at the first preset temperature range for a first preset time period, so that the aquatic products gradually adapt to the first preset temperature range, and will not cause the aquatic products to become inactive; and then controlling the storage space 21 to cool down to a target temperature range, the aquatic products in the storage space 21 can enter a dormant state from a slowly active state, so that the aquatic products enter an inactive state without adding water, thereby effectively achieving the purpose of reducing metabolism, so as to effectively prolong the survival time of the aquatic products, thereby realizing the survival storage of the aquatic products.

[0080] As an example, the first preset duration may be 1h~2h, specifically 1h, 1.2h, 1.5h, 1.8h, 2h and so on.

[0081] In some embodiments, the total time for the storage space 21 to keep aquatic products alive can be maintained at 10 hours to 15 hours. It can be understood that the time used to control the storage space 21 to cool down to the first preset temperature range can be the first preset time period, the time used to control the storage space 21 to cool down to the target temperature range can be the second preset time period, and the time used to maintain the target temperature range can be the third preset time period. The first preset time period, the first preset time, the second preset time period and the third preset time period can constitute the total time for the storage space 21 to keep aquatic products alive.

[0082] See also Figure 8 In one embodiment of the present invention, the step of controlling the storage space 21 to cool down to a first preset temperature range includes: S111, controlling the storage space 21 to cool down to a first preset temperature range within a first preset time period, where the first preset time period is 1 hour to 2 hours; And / or, the step of controlling the storage space 21 to cool down to a target temperature range includes: S121, controlling the storage space 21 to cool down to a target temperature range within a second preset time period, where the second preset time period is 1 hour to 2 hours.

[0083] With such a configuration, the storage space 21 can be controlled to cool down to a first preset temperature range within a first preset time period, and the storage space 21 can be controlled to cool down to a target temperature range within a second preset time period, so that the aquatic products in the storage space 21 can be cooled down within the set time, avoiding the cooling time period being too short or too long to affect the preservation effect of the aquatic products.

[0084] In actual application, the storage space 21 can be controlled to cool down to the first preset temperature range at a uniform speed within the first preset time period, or it can be controlled to cool down to the first preset temperature range at a variable speed. It is understandable that the storage space 21 can be controlled to cool down at the first cooling speed, the second cooling speed, and the third cooling speed in the first preset time period, wherein the first cooling speed, the second cooling speed, and the third cooling speed can be the same or different. Similarly, the storage space 21 can be controlled to cool down to the target temperature range at a uniform speed within the second preset time period, or it can be controlled to cool down to the target temperature range at a variable speed. It is understandable that the storage space 21 can be controlled to cool down at the first cooling speed, the second cooling speed, and the third cooling speed in the second preset time period, wherein the first cooling speed, the second cooling speed, and the third cooling speed can be the same or different.

[0085] As an example, the storage space 21 can be controlled to cool down to the first preset temperature range at a cooling rate of 2°C / h to 9°C / h in the first preset time period. The storage space 21 can also be controlled to cool down to the target temperature range at a cooling rate of 2°C / h to 9°C / h in the second preset time period.

[0086] In some embodiments, when the temperature in the storage space 21 is greater than the first preset temperature range, the damper of the waterless life-preserving device 100 can be controlled to open the air inlet 12 to control the storage space 21 to cool down to the first preset temperature range within the first preset time period; when the temperature in the storage space 21 reaches the first preset temperature, the damper of the waterless life-preserving device 100 can be controlled to close the air inlet 12 until the first preset time period is maintained.

[0087] In an embodiment of the present invention, the first preset temperature range is 12°C-15°C, and the target temperature range is 8°C-10°C.

[0088] In this way, since the initial stage when the aquatic products are placed in the storage space 21, the initial temperature in the storage space 21 is at room temperature, for example, 20°C~30°C, specifically 25°C, by first controlling the temperature in the storage space 21 to drop from room temperature to 12°C~15°C, the aquatic products in the storage space 21 can smoothly enter a slowly active state from a highly active state; after the temperature in the storage space 21 is maintained at a first preset temperature range for a first preset time, the temperature in the storage space 21 is controlled to drop from 12°C~15°C to 8°C~10°C, so that the aquatic products in the storage space 21 enter a dormant state from a slowly active state, and the aquatic products enter an inactive state without adding water, thereby effectively achieving the purpose of reducing metabolism, so as to effectively prolong the survival time of aquatic products, thereby realizing the alive storage of aquatic products.

[0089] See also Fig. 9 In one embodiment of the present invention, the step of controlling the oxygen concentration in the storage space 21 to be within the target oxygen concentration range includes: S21, in the initial stage of controlling the storage space 21 to cool down to the first preset temperature range, providing oxygen into the storage space 21; S22. When the storage space 21 is cooled to a first preset temperature range, the oxygen concentration in the storage space 21 is within a target oxygen concentration range, which is 30% to 50%.

[0090] With such arrangement, since the aquatic products are stimulated more during the cooling process, the gills of the aquatic products move more frequently and more oxygen is needed. Therefore, in the initial stage of controlling the storage space 21 to be cooled to the first preset temperature range, oxygen is provided to the storage space 21 at the same time, so that sufficient oxygen can be provided to the aquatic products to avoid the inactivation of aquatic products due to lack of oxygen. When the storage space 21 is cooled to the first preset temperature range, the oxygen concentration in the storage space 21 is controlled to be between 30% and 50%, so that a stable oxygen concentration can be provided to the aquatic products, so that when the aquatic products maintain the first preset temperature range for the first preset time, sufficient oxygen is guaranteed to be provided to the aquatic products, so as to avoid the oxygen being consumed to a lower concentration during the maintenance process and affecting the survival effect of the aquatic products.

[0091] In some embodiments, when the oxygen concentration in the storage space 21 is less than the target oxygen concentration range, the damper, vacuum pump 43 and pressure relief valve 15 of the waterless preservation device 100 can be opened simultaneously to provide oxygen to the storage space 21 in the initial stage of controlling the storage space 21 to cool down to the first preset temperature range.

[0092] See also Fig.10 In one embodiment of the present invention, the step of controlling the oxygen concentration in the storage space 21 to be within the target oxygen concentration range further includes: S23, controlling the storage space 21 to cool down to the initial stage of the target temperature range, and providing oxygen into the storage space 21; S24. When the storage space 21 is cooled to a target temperature range, the oxygen concentration in the storage space 21 is within a target oxygen concentration range, and the target oxygen concentration range is 30% to 50%.

[0093] In this arrangement, since the aquatic product has consumed a portion of the oxygen in the storage space 21 during the process of maintaining the first preset temperature range for the first preset time, the oxygen concentration in the storage space 21 is lower than the target oxygen concentration range, and in the process of controlling the storage space 21 to cool down from the first preset temperature range to the target temperature range, the stimulation to the aquatic product is also greater, making the gills of the aquatic product move more frequently and requiring more oxygen. Therefore, in the initial stage of controlling the storage space 21 to cool down to the target temperature range, oxygen is provided to the storage space 21 at the same time, and oxygen can be supplemented in the storage space 21 to provide sufficient oxygen to the aquatic product to avoid the aquatic product from being deactivated due to lack of oxygen; when the storage space 21 is cooled to the target temperature range, by controlling the oxygen concentration in the storage space 21 to be between 30% and 50%, a stable oxygen concentration can be provided to the aquatic product, so that in the process of maintaining the aquatic product in the target temperature range until the end of the preservation, it is ensured that there is sufficient oxygen to provide to the aquatic product, avoiding the oxygen being consumed to a lower concentration during the maintenance process and affecting the preservation effect of the aquatic product.

[0094] In some embodiments, when the oxygen concentration in the storage space 21 is lower than the target oxygen concentration range, the damper, vacuum pump 43 and pressure relief valve 15 of the waterless preservation device 100 can be opened simultaneously to provide oxygen to the storage space 21 in the initial stage of controlling the storage space 21 to cool down to the target temperature range.

[0095] The present invention also provides a refrigeration device, which includes a device body and a waterless life-keeping device 100. The specific structure of the waterless life-keeping device 100 refers to the above embodiment. Since the refrigeration device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the waterless life-keeping device 100 is installed in the device body.

[0096] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A water-free keep-alive device, characterized in that: include: A life-preserving shell, wherein the life-preserving shell is provided with a sealable storage space; A cooling module, disposed in the keep-alive housing, configured to cool the storage space; an oxygen supply module, disposed in the life-preserving housing and configured to provide oxygen to the storage space; The cooling module comprises a heat conducting plate, which is disposed in the storage space and configured to cool the storage space; The life-keeping shell includes an outer shell and a drawer, the outer shell forms an installation cavity, one side of the outer shell is provided with an installation port connected to the installation cavity, the drawer is inserted into the installation cavity from the installation port, and is enclosed with the outer shell to form the storage space; the heat conduction plate is located above the drawer, and a cooling air duct is formed between the heat conduction plate and the inner top wall of the outer shell, and the outer shell is provided with an air inlet and an air outlet connected to the cooling air duct.

2. The water-free keep-alive device according to claim 1, characterized in that: The housing is also provided with a damper for opening or closing the air inlet.

3. The water-free keep-alive device according to claim 1, characterized in that: Heat conducting fins are arranged in the cooling air duct.

4. The water-free keep-alive device according to claim 3, characterized in that: The heat-conducting fins divide the cooling air duct into at least two sections of unit air ducts arranged at an angle, and two adjacent sections of the unit air ducts are connected to each other.

5. The water-free keep-alive device according to claim 4, characterized in that: The air inlet and the air outlet are respectively arranged on two adjacent side walls of the shell.

6. The water-free keep-alive device according to claim 1, characterized in that: The water-free keep-alive device also includes: a temperature sensor, disposed on a side of the heat conducting plate away from the drawer, and configured to detect the temperature in the storage space; The oxygen sensor is disposed on a side of the heat conducting plate facing the drawer and is configured to detect the oxygen concentration in the storage space.

7. The water-free keep-alive device according to any one of claims 1 to 6, characterized in that: The oxygen supply module comprises: an oxygen supply membrane assembly, disposed in the live-keeping housing, comprising a controlled atmosphere membrane, wherein the oxygen supply membrane assembly is configured to allow more oxygen in the air surrounding the controlled atmosphere membrane to pass through the controlled atmosphere membrane than nitrogen in the air surrounding the controlled atmosphere membrane; an oxygen delivery pipeline, one end of which is in communication with the modified atmosphere membrane, and the other end of which is in communication with the storage space; The air pump is configured to draw gas through the gas-controlled membrane and discharge the gas to the storage space through the oxygen supply pipeline.

8. The water-free keep-alive device according to claim 7, characterized in that: The life-preserving shell is provided with an oxygen inlet hole and a pressure relief valve connected to the storage space, and one end of the oxygen supply pipeline away from the oxygen supply membrane assembly is connected to the oxygen inlet hole.

9. The water-free keep-alive device according to claim 8, characterized in that: The oxygen inlet hole and the pressure relief valve are respectively arranged at diagonal positions of the life-preserving shell.

10. A control method for a waterless keep-alive device, characterized in that: The control method comprises the following steps: Controlling the storage space to cool down at a target temperature gradient until the temperature of the storage space is within a target temperature range; Under the condition that the target temperature reduction gradient is met, controlling the oxygen concentration in the storage space to be within a target oxygen concentration range; The step of controlling the storage space to cool down at a target temperature gradient until the temperature of the storage space is within a target temperature range comprises: Controlling the storage space to cool down to a first preset temperature range and maintaining it for a first preset time period; The storage space is controlled to cool down to a target temperature range.

11. The control method according to claim 10, characterized in that: The step of controlling the storage space to cool down to a first preset temperature range comprises: Controlling the storage space to cool down to the first preset temperature range within a first preset time period, wherein the first preset time period is 1 hour to 2 hours; And / or, the step of controlling the storage space to cool down to a target temperature range includes: The storage space is controlled to cool down to a target temperature range within a second preset time period, and the second preset time period is 1 hour to 2 hours.

12. The control method according to claim 11, characterized in that: The first preset temperature range is 12°C~15°C, and the target temperature range is 8°C~10°C.

13. The control method according to claim 11, characterized in that: The step of controlling the oxygen concentration in the storage space to be within a target oxygen concentration range comprises: In the initial stage of controlling the temperature of the storage space to drop to a first preset temperature range, providing oxygen into the storage space; When the storage space is cooled to a first preset temperature range, the oxygen concentration in the storage space is within a target oxygen concentration range, and the target oxygen concentration range is 30% to 50%.

14. The control method according to claim 11, characterized in that: The step of controlling the oxygen concentration in the storage space to be within a target oxygen concentration range further includes: Controlling the storage space to cool down to an initial stage of a target temperature range, and providing oxygen into the storage space; When the storage space is cooled to a target temperature range, the oxygen concentration in the storage space is within a target oxygen concentration range, and the target oxygen concentration range is 30% to 50%.

15. A refrigeration device, characterized in that: include: Equipment body; The water-free keep-alive device according to any one of claims 1 to 9, wherein the water-free keep-alive device is installed in the device body.

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