Storage device and refrigeration equipment

Abstract

The utility model discloses a storage device and refrigeration equipment. The storage device comprises a storage cavity, the storage cavity inputs oxygen to a positive electrode of the hydrogen-oxygen fuel cell assembly through the oxygen guide assembly; and the electrolysis assembly is used for supplying hydrogen to the storage cavity and / or the negative electrode of the hydrogen-oxygen fuel cell assembly. Wherein the oxyhydrogen fuel cell assembly is provided with a drainage pipeline, and water generated by the oxyhydrogen fuel cell assembly is introduced into the electrolysis assembly through the drainage pipeline. The hydrogen-oxygen fuel cell assembly and the electrolysis assembly are arranged, hydrogen generated when the electrolysis assembly is started can be supplied to the storage cavity or the negative electrode of the hydrogen-oxygen fuel cell assembly, the ethylene release amount of fruits and vegetables can be reduced when the hydrogen is supplied to the storage cavity, and the hydrogen can serve as fuel when the hydrogen is supplied to the negative electrode of the hydrogen-oxygen fuel cell assembly; by regulating and controlling the oxygen concentration and the hydrogen concentration in the storage cavity, the fresh-keeping effect is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration and fresh-keeping, in particular to a storage device and refrigeration equipment. Background Art

[0002] Fruits and vegetables remain living organisms after being picked. During storage, they continue to mature until they spoil and lose their edible value. Besides suitable low-temperature storage, oxygen and ethylene concentrations are key factors affecting fruit and vegetable freshness. Reducing these concentrations can effectively extend the shelf life of fruits and vegetables. Methods for regulating oxygen concentration for preservation have been developed in the prior art. For example, utility model patent No. CN116164489A discloses an electrochemical oxygenation and oxygen reduction method for preservation.

[0003] Recent studies have shown that endogenous hydrogen production decreases during fruit and vegetable preservation. Adding hydrogen or hydrogen-rich water can extend the shelf life of fruits and vegetables, primarily because hydrogen can counteract the production and release of ethylene. Methods for regulating hydrogen concentration for preservation have been developed in the prior art. For example, utility model patent CN118242824A discloses a preservation method using electrochemical hydrogen production.

[0004] Although existing preservation methods can improve the storage quality of fruits and vegetables to a certain extent, some problems still exist:

[0005] 1. Most of the currently disclosed preservation methods use a single gas for controlled atmosphere preservation, and the preservation effect needs to be improved;

[0006] 2. During the electrochemical hydrogen production process, water is continuously consumed, and the electrolytic components need to be frequently replenished with water, which affects the user experience;

[0007] 3. During the oxygen reduction process, pumping oxygen out of the storage device consumes electricity, which is not conducive to energy conservation and environmental protection.

[0008] Therefore, how to design storage devices and refrigeration equipment with better preservation effects is a technical problem that needs to be solved urgently in the industry. Utility Model Content

[0009] In order to optimize the preservation effect of existing preservation technology, the present invention proposes a storage device and a refrigeration device. The storage device has a hydrogen-oxygen fuel cell component and an electrolysis component, which can more flexibly adjust the oxygen concentration and hydrogen concentration in the storage cavity, significantly improving the preservation effect.

[0010] The technical solution adopted by the utility model is to design a storage device, including:

[0011] storage cavity;

[0012] The hydrogen-oxygen fuel cell assembly has a storage cavity that inputs oxygen to the positive electrode of the hydrogen-oxygen fuel cell assembly through the oxygen guide assembly;

[0013] The electrolysis assembly is used to supply hydrogen to the storage chamber and / or the negative electrode of the hydrogen-oxygen fuel cell assembly.

[0014] Furthermore, the hydrogen-oxygen fuel cell assembly is provided with a drainage pipe, and the water generated by the hydrogen-oxygen fuel cell assembly is introduced into the electrolysis assembly through the drainage pipe.

[0015] Furthermore, the hydrogen and oxygen fuel cell assembly is electrically connected to the oxygen guide assembly and / or the electrolysis assembly.

[0016] Furthermore, the oxygen guide assembly includes: an oxygen delivery pipeline connected between the storage chamber and the hydrogen-oxygen fuel cell assembly, an oxygen-enriched membrane installed in the oxygen delivery pipeline, and a fan that drives the gas in the storage chamber into the oxygen delivery pipeline, and the hydrogen-oxygen fuel cell assembly is electrically connected to the fan.

[0017] Furthermore, a first hydrogen concentration sensor for detecting actual hydrogen concentration and an oxygen concentration sensor for detecting actual oxygen concentration are installed in the storage cavity. Both the first hydrogen concentration sensor and the oxygen concentration sensor are communicatively connected to the processor of the storage device.

[0018] Furthermore, the electrolysis assembly supplies hydrogen to the storage chamber and / or the negative electrode of the hydrogen-oxygen fuel cell assembly through a hydrogen storage and distribution assembly; the hydrogen storage and distribution assembly includes: a storage chamber and a hydrogen input pipeline connected to the electrolysis assembly, the storage chamber is connected to the storage chamber through a first hydrogen input pipeline, and the negative electrode of the hydrogen-oxygen fuel cell assembly is connected to the storage chamber through a second hydrogen input pipeline.

[0019] Furthermore, the storage chamber is equipped with a second hydrogen concentration sensor, which is communicatively connected to the processor of the storage device.

[0020] Furthermore, the electrolysis chamber of the electrolysis assembly is equipped with an ion concentration sensor, which is communicatively connected to the processor of the storage device.

[0021] Furthermore, the storage device can operate in at least one of the following working states: a normal preservation state, an oxygen reduction preservation state, a hydrogenation preservation state, and a hydrogenation and oxygen reduction preservation state;

[0022] In the normal preservation state, the electrolysis component and the oxygen guide component are not started, and the hydrogen and oxygen fuel cell component does not work;

[0023] In the oxygen reduction and freshness preservation state, the oxygen guide component starts to input oxygen to the positive electrode of the hydrogen-oxygen fuel cell component, and the electrolysis component starts to supply hydrogen to the negative electrode of the hydrogen-oxygen fuel cell component, and the hydrogen-oxygen fuel cell component works;

[0024] In the hydrogenation and preservation state, the electrolysis component starts to supply hydrogen to the storage chamber, the oxygen guide component does not start, and the hydrogen-oxygen fuel cell component does not work;

[0025] In the hydrogenation and oxygen reduction preservation state, the storage device first operates in the oxygen reduction preservation state and then operates in the hydrogenation preservation state.

[0026] The utility model also provides a refrigeration device, which includes the above-mentioned storage device.

[0027] In some embodiments, the refrigeration device is a refrigerator or a cold storage.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. Design a hydrogen-oxygen fuel cell assembly and an electrolysis assembly. The hydrogen generated by the electrolysis assembly when activated can be supplied to the storage chamber or the negative electrode of the hydrogen-oxygen fuel cell assembly. The hydrogen supplied to the storage chamber can reduce the amount of ethylene released by fruits and vegetables. The hydrogen supplied to the negative electrode of the hydrogen-oxygen fuel cell assembly can be used as fuel. The oxygen in the storage chamber can be introduced into the positive electrode of the hydrogen-oxygen fuel cell assembly as an oxidant, thereby reducing the oxygen concentration in the storage chamber and weakening the respiration of fruits and vegetables. By regulating the oxygen and hydrogen concentrations in the storage chamber, the preservation effect is significantly improved.

[0030] 2. The hydrogen-oxygen fuel cell assembly is designed with a drainage pipe. The product of the hydrogen-oxygen fuel cell is water. The water is introduced into the electrolysis chamber of the electrolysis assembly through the drainage pipe to replenish the water consumed by electrolysis hydrogen production, avoiding the user's frequent manual water replenishment;

[0031] 3. The hydrogen-oxygen fuel cell assembly can supply power to the oxygen guide assembly and / or electrolysis assembly, which is more energy-saving and environmentally friendly. In addition, using the hydrogen-oxygen fuel cell assembly to supplement power to the oxygen guide assembly can also increase the gas flow rate and the oxygen reduction rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be described in detail below with reference to the embodiments and accompanying drawings, wherein:

[0033] Figure 1 It is a front view schematic diagram of the storage device;

[0034] Figure 2 It is a schematic diagram of the back of the storage device;

[0035] Figure 3 It is a schematic diagram of the internal structure of the storage cavity;

[0036] Figure 4 Schematic diagram of the external structure of the storage cavity;

[0037] Figure 5 It is a schematic diagram of the structure of the oxygen guide assembly;

[0038] Figure 6 is an external schematic diagram of a hydrogen-oxygen fuel cell assembly;

[0039] Figure 7 is an external schematic diagram of the electrolytic assembly;

[0040] Figure 8 It is a schematic diagram of the interior of the electrolytic assembly;

[0041] Figure 9 is an external schematic diagram of a hydrogen storage and distribution assembly;

[0042] Figure 10 It is a schematic diagram of the interior of the hydrogen storage and distribution assembly;

[0043] Figure 11 This is a flow chart of the normal preservation state;

[0044] Figure 12 It is a flow chart of oxygen reduction and fresh-keeping state;

[0045] Figure 13 This is a schematic diagram of the process of hydrogen enrichment and freshness preservation;

[0046] Figure 14 This is a flow chart of the hydrogen-enhancing and oxygen-reducing preservation state;

[0047] Figure 15 It is a control flow diagram of the electrolytic component;

[0048] Description of the drawings: 1. Storage device; 10. Storage chamber; 101. Cover plate; 102. First hydrogen input pipe; 103. Oxygen delivery pipe; 104. Oxygen-enriched membrane; 105. Fan; 106. First hydrogen concentration sensor; 107. Oxygen concentration sensor; 20. Hydrogen-oxygen fuel cell assembly; 201. Second hydrogen input pipe; 202. Oxygen input hole; 203. Drain pipe; 30. Electrolysis assembly; 301. Hydrogen discharge hole; 302. Oxygen discharge hole; 303. Water supply hole; 304. Ion concentration sensor; 40. Hydrogen storage and distribution assembly; 401. Storage chamber; 402. Hydrogen input pipe; 403. First hydrogen output hole; 404. Second hydrogen output hole; 405. Second hydrogen concentration sensor. DETAILED DESCRIPTION

[0049] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention 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 the present invention and are not intended to limit the present invention.

[0050] like Figure 1 、 2As shown, the present invention provides a storage device 1 , which includes a storage chamber 10 , a hydrogen-oxygen fuel cell assembly 20 , and an electrolysis assembly 30 .

[0051] like Figures 3 to 5 As shown, the storage compartment's inner cavity is a storage chamber 10. A cover 101 is provided on one side of the storage compartment. This cover 101 can be opened or closed by sliding on a track or rotating on a hinge. When the cover 101 is closed, the storage compartment forms a sealed storage chamber 10, which is used to store items such as fruits and vegetables. The shape of the storage chamber can be designed based on actual usage requirements, such as a hollow cube. The storage space has two openings: one connected to a first hydrogen inlet pipe 102, and the other connected to an oxygen guide assembly. The first hydrogen inlet pipe 102 is used to input hydrogen into the storage chamber 10, and the oxygen guide assembly is used to transport oxygen in the storage chamber 10 to the positive electrode of the hydrogen-oxygen fuel cell assembly 20.

[0052] like Figure 6 As shown, the hydrogen-oxygen fuel cell assembly 20 includes a battery housing, a positive electrode (oxygen electrode), a negative electrode (hydrogen electrode), an electrolyte, and a catalyst. For example, in a common case, the positive and negative electrodes in the hydrogen-oxygen fuel cell assembly 20 can be nickel electrodes with platinum or palladium catalysts on them, and the electrolyte can be a cation exchange membrane. Hydrogen is supplied to the negative electrode, while oxygen is supplied to the positive electrode. Hydrogen and oxygen, under the action of the catalysts on the electrodes, pass through the electrolyte to produce water.

[0053] The specific working principle is that hydrogen decomposes into H at the negative electrode. + and e - , H + Entering the electrolyte, e - Move along the external circuit to the positive electrode, where oxygen reacts with H + and e reaching the positive electrode - Combined to form water, the negative electrode reaction formula is 2H2-4e - =4H + , the positive electrode reaction formula is O2+4e - +4H + =2H2O. The load that consumes electricity can be connected to an external circuit. When the hydrogen on the negative electrode is decomposed into H + and e - When, e - The current flows toward the positive electrode along the external circuit, forming a current, which can be used to drive a load connected to the external circuit.

[0054] Based on the above principle, the hydrogen-oxygen fuel cell assembly 20 has a second hydrogen input pipe 201, and the battery housing is provided with an oxygen input hole 202 connected to the oxygen guide assembly. The second hydrogen input pipe 201 is used to transport hydrogen to the negative electrode of the hydrogen-oxygen fuel cell assembly 20, and the oxygen input hole 202 is used to transport oxygen to the positive electrode of the hydrogen-oxygen fuel cell assembly 20.

[0055] like Figure 7 、 8 As shown, the electrolytic assembly 30 includes an electrolytic housing, electrodes, an electrolyte, and a diaphragm. The electrolytic assembly 30 typically has two electrodes, an anode and a cathode. The anode is the electrode from which current flows, while the cathode is the electrode from which current flows. The electrolyte is a liquid used for conducting electricity during the electrolysis process. The electrolyte can be either acidic or alkaline, and is used to promote the electrolysis of water. The diaphragm is located between the anode and cathode to prevent direct contact and short circuits between the electrodes. When the electrodes are connected to a power source, current flows through the electrolyte and chemical reactions occur at the cathode and anode. At the cathode, hydrogen ions in water molecules gain electrons and are reduced to hydrogen gas. At the anode, oxygen atoms in water molecules lose electrons and are oxidized to oxygen.

[0056] Based on the above principles, the electrolysis housing is provided with a hydrogen discharge hole 301 near the cathode, through which hydrogen generated by electrolysis is transported outward. The electrolysis housing is provided with an oxygen discharge hole 302 near the anode, through which oxygen generated by electrolysis is transported outward. The hydrogen generated by the electrolysis assembly 30 can be supplied to the storage chamber 10 and / or the negative electrode of the hydrogen-oxygen fuel cell assembly 20. Specifically, the hydrogen discharge hole 301 is connected to the first hydrogen input conduit 102 of the storage chamber 10 and the second hydrogen input conduit 201 of the hydrogen-oxygen fuel cell assembly 20. This connection can be direct or indirect via the hydrogen storage and distribution assembly 40 described below. The oxygen discharge hole 302 is in communication with the external environment, through which the oxygen generated by electrolysis is discharged to the external environment.

[0057] The present invention designs a hydrogen-oxygen fuel cell assembly 20 and an electrolysis assembly 30. The hydrogen generated by the electrolysis assembly 30 when started can be supplied to the storage chamber 10 or the negative electrode of the hydrogen-oxygen fuel cell assembly 20. The hydrogen supplied to the storage chamber 10 can reduce the ethylene release of fruits and vegetables. The hydrogen supplied to the negative electrode of the hydrogen-oxygen fuel cell assembly 20 can be used as fuel. The oxygen in the storage chamber 10 can be introduced into the positive electrode of the hydrogen-oxygen fuel cell assembly 20 as an oxidant, thereby reducing the oxygen concentration in the storage chamber 10 and weakening the respiration of fruits and vegetables. By regulating the oxygen concentration and hydrogen concentration in the storage chamber 10, the preservation effect is significantly improved.

[0058] like Figures 6 to 8As shown, in some embodiments of the present invention, the hydrogen-oxygen fuel cell assembly 20 is further provided with a drainage pipe 203. The drainage pipe 203 is located at the lower portion of the battery housing, and the end of the drainage pipe 203 is connected to the water supply hole 303 of the electrolysis assembly 30. The drainage pipe 203 is used to introduce water produced by the hydrogen-oxygen fuel cell assembly 20 into the electrolysis assembly 30. Since the product of the hydrogen-oxygen fuel cell is water, the water is introduced into the electrolysis chamber of the electrolysis assembly 30 through the drainage pipe 203 to replenish the water consumed by the electrolysis hydrogen production, thereby avoiding the user's frequent manual water replenishment.

[0059] To achieve energy recycling, the hydrogen-oxygen fuel cell assembly 20 is electrically connected to the oxygen guide assembly and / or electrolysis assembly 30. The electricity generated by the hydrogen-oxygen fuel cell reaction is supplied to the oxygen guide assembly or electrolysis assembly, thereby achieving energy conservation and environmental protection. Furthermore, using the hydrogen-oxygen fuel cell assembly 20 to supplement power to the oxygen guide assembly can also increase the operating speed of the oxygen guide assembly, resulting in faster gas flow and an increased oxygen reduction rate.

[0060] Specifically, if Figure 5 As shown, the oxygen guide assembly includes an oxygen delivery pipe 103, an oxygen-enriching membrane 104, and a fan 105. The oxygen delivery pipe 103 connects between the storage chamber 10 and the hydrogen-oxygen fuel cell assembly 20. The oxygen-enriching membrane 104 is installed within the oxygen delivery pipe 103. The fan 105 drives the gas within the storage chamber 10 into the oxygen delivery pipe 103. The hydrogen-oxygen fuel cell assembly 20 is electrically connected to the fan 105. When the fan 105 is activated, the gas within the storage chamber 10 enters the oxygen delivery pipe 103. Driven by the fan 105, the high-purity oxygen separated by the oxygen-enriching membrane 104 continues to flow along the oxygen delivery pipe 103 until it reaches the positive electrode of the hydrogen-oxygen fuel cell assembly 20. In the hydrogen-oxygen fuel cell assembly 20, the oxygen and hydrogen undergo a chemical reaction to produce electricity and water. This electricity is supplied to the fan 105, which increases its speed, accelerating the flow of gas within the oxygen delivery pipe 103 and rapidly reducing the actual oxygen concentration within the storage chamber 10 to a predetermined oxygen concentration.

[0061] This design utilizes the systematic operation of the oxygen delivery pipeline 103, the oxygen-enriched membrane 104, and the fan 105 to ensure a continuous supply of high-purity oxygen, thereby improving the stability and reliability of the hydrogen-oxygen fuel cell reaction. The electricity generated by the hydrogen-oxygen fuel cell is supplied to the fan 105, which can not only reduce the fan 105's dependence on external power supply, but also significantly accelerate the oxygen reduction efficiency.

[0062] like Figure 3As shown, to improve the storage efficiency of storage device 1, gas concentration sensors are installed within storage cavity 10. These include a first hydrogen concentration sensor 106 for detecting the actual hydrogen concentration, and an oxygen concentration sensor 107 for detecting the actual oxygen concentration. The gas concentration sensors are communicatively connected to the processor of storage device 1, which controls the operating state of storage device 1 based on the detection data from the gas concentration sensors. By designing gas concentration sensors to monitor the hydrogen and oxygen concentrations within storage cavity 10 in real time, the operating state of storage device 1 can be adjusted promptly to ensure that the gas concentrations within storage cavity 10 remain within the optimal range. This helps improve storage efficiency and reduces damage or deterioration of stored items due to inappropriate gas concentrations.

[0063] like Figure 9 、 10 As shown, in some embodiments of the present invention, the electrolysis assembly 30 supplies hydrogen to the storage chamber 10 and / or the negative electrode of the hydrogen-oxygen fuel cell assembly 20 via a hydrogen storage and distribution assembly 40. The hydrogen storage and distribution assembly 40 includes a storage chamber 401 and a hydrogen input conduit 402. The hydrogen input conduit 402 connects the storage chamber 401 and the electrolysis assembly 30. Hydrogen generated by the electrolysis assembly 30 enters the storage chamber 401 through the hydrogen input conduit 402. The storage chamber 401 is provided with a first hydrogen output port 403 and a second hydrogen output port 404. The first hydrogen input conduit 102 of the storage chamber 10 is connected to the first hydrogen output port 403 of the storage chamber 401, and the second hydrogen input conduit 201 of the hydrogen-oxygen fuel cell assembly 20 is connected to the second hydrogen output port 404 of the storage chamber 401. The design of the hydrogen storage and distribution assembly 40 ensures a stable and continuous supply of hydrogen to the storage chamber 10 and the hydrogen-oxygen fuel cell assembly 20, thereby improving the reliability of the storage device 1.

[0064] Based on the hydrogen storage and distribution assembly 40, a preferred solution is to install a second hydrogen concentration sensor 405 within the storage chamber 401. This second hydrogen concentration sensor 405 is communicatively connected to the processor of the storage device 1, which controls the operating state of the electrolysis assembly based on the actual hydrogen concentration within the storage chamber 401. This design utilizes the second hydrogen concentration sensor 405 to monitor the hydrogen concentration within the storage chamber 401 in real time, ensuring that the hydrogen level within the storage chamber 401 remains at a safe level while meeting the supply requirements of the storage chamber 10 and the hydrogen-oxygen fuel cell assembly 20.

[0065] Specifically, the storage device 1 operates as follows: When a user places an item into the storage compartment, the storage device senses the closing of the compartment cover 101, forming a sealed storage chamber 10 within the compartment. Gas sensors monitor the actual oxygen concentration Co1 and hydrogen concentration Ch1 within the storage chamber 10 in real time, feeding this data back to the processor. The electrolytic assembly 30 is energized, generating hydrogen at the cathode and oxygen at the anode. The hydrogen enters the hydrogen input conduit 402 through the hydrogen outlet 301 and into the storage chamber 401, while the oxygen is discharged through the oxygen outlet 302. The actual hydrogen concentration Cht in the storage chamber 401 is monitored in real time by a second hydrogen concentration sensor 405. The hydrogen can then enter the first hydrogen input conduit 102 through the first hydrogen outlet 403, and then into the storage chamber 10, fulfilling its freshness-preserving function. The hydrogen in the storage chamber 401 can also enter the second hydrogen input conduit 201 through the second hydrogen output port 404, and then enter the hydrogen-oxygen fuel cell assembly 20, supplying fuel to the hydrogen-oxygen fuel cell. The hydrogen-oxygen fuel cell assembly 20 is connected to the storage chamber 10 via an oxygen guide assembly. The oxygen guide assembly's fan 105 can be powered by the hydrogen-oxygen fuel cell assembly 20. When activated, fan 105 directs the gas within the storage chamber 10 toward the positive electrode of the hydrogen-oxygen fuel cell assembly 20, where oxygen in the gas is consumed to produce water. The water produced by the hydrogen-oxygen fuel cell assembly 20 is then connected to the water replenishment port 303 via the drainage conduit 203, replenishing water lost during electrolysis in the electrolysis assembly 30.

[0066] like Figure 1 、 2 As shown, based on the storage device 1 having structures such as the electrolysis component 30, the hydrogen-oxygen fuel cell component 20 and the oxygen guide component, the storage device 1 can operate in at least one of the following working states: a normal preservation state, an oxygen reduction preservation state, a hydrogenation preservation state, and a hydrogenation-reduced oxygen preservation state. The different working states are introduced in detail below.

[0067] like Figure 11 As shown, in the normal preservation state, it is detected that items are placed in the storage compartment, and the cover 101 of the storage compartment is closed to form a closed storage chamber 10, the electrolysis assembly 30 and the oxygen guide assembly are not started, and the hydrogen and oxygen fuel cell assembly 20 does not work.

[0068] like Figure 12As shown, in the oxygen reduction and freshness preservation mode, when the storage compartment detects the placement of items and the compartment cover 101 is closed, forming a sealed storage chamber 10, the electrolysis assembly 30 starts supplying hydrogen to the cathode of the hydrogen-oxygen fuel cell assembly 20, and the oxygen guide assembly starts supplying oxygen to the anode of the hydrogen-oxygen fuel cell assembly 20. As the hydrogen-oxygen fuel cell assembly 20 operates, the oxygen inside the storage chamber 10 is consumed and reduced, achieving the oxygen reduction and freshness preservation effect. When the actual oxygen concentration Co1 within the storage chamber 10 reaches the preset oxygen concentration, the hydrogen storage and distribution assembly 40 stops supplying hydrogen to the hydrogen-oxygen fuel cell assembly 20, and the hydrogen-oxygen fuel cell assembly 20 stops operating. When the actual hydrogen concentration Cht within the storage chamber 401 reaches the preset storage concentration, the electrolysis assembly 30 shuts down.

[0069] like Figure 13 As shown, in the hydrogenation and freshness preservation mode, if the storage compartment detects the placement of items and the compartment cover 101 is closed, forming a sealed storage chamber 10, the electrolysis assembly 30 activates to supply hydrogen to the storage chamber 10, the oxygen guide assembly is deactivated, and the hydrogen-oxygen fuel cell assembly 20 does not operate. When Ch1 in the storage chamber 10 reaches a preset hydrogen concentration, the hydrogen storage and distribution assembly 40 stops supplying hydrogen to the storage chamber 10. When the actual hydrogen concentration Cht in the storage chamber 401 reaches the preset storage concentration, the electrolysis assembly 30 shuts down.

[0070] like Figure 14 As shown, in the hydrogen-enhanced and oxygen-reduced preservation mode, the storage device 1 first operates in the oxygen-reduced preservation mode and then in the hydrogen-enhanced preservation mode. Specifically, the electrolysis assembly 30 starts to supply hydrogen to the cathode of the hydrogen-oxygen fuel cell assembly 20, and the oxygen guide assembly starts to input oxygen to the anode of the hydrogen-oxygen fuel cell assembly 20. The hydrogen-oxygen fuel cell assembly 20 operates. When the actual oxygen concentration Co1 in the storage chamber 10 reaches the preset oxygen concentration, the hydrogen storage and distribution assembly 40 stops supplying hydrogen to the hydrogen-oxygen fuel cell assembly 20. The hydrogen-oxygen fuel cell assembly 20 stops operating, and the hydrogen storage and distribution assembly 40 supplies hydrogen to the storage chamber 10. When Ch1 in the storage chamber 10 reaches the preset hydrogen concentration, the hydrogen storage and distribution assembly 40 stops supplying hydrogen to the storage chamber 10. When the actual hydrogen concentration Cht in the storage chamber 401 reaches the preset storage concentration, the electrolysis assembly 30 shuts down.

[0071] This design allows the storage device 1 to select the most appropriate preservation state based on the type of item. For example, for perishable fruits and vegetables, the oxygen reduction preservation state can be selected; for fruits and vegetables that need to maintain freshness and taste, the hydrogen enhancement preservation state or the hydrogen enhancement and oxygen reduction preservation state can be selected. This flexibility helps improve the adaptability of the storage device 1 to different fruits and vegetables, meeting diverse preservation needs.

[0072] It should be understood that different fruits and vegetables have different physiological characteristics and preservation requirements. In actual application, the oxygen concentration and hydrogen concentration corresponding to the different items placed in the storage cavity 10 can be designed. Generally speaking, the preset oxygen concentration of the storage cavity 10 ranges from 5% to 10%, and the preset hydrogen concentration ranges from 0.001% to 3%.

[0073] Since the electrolytic component 30 continuously consumes water when generating hydrogen, the ion concentration of the electrolyte will change. The source of water replenishment can be the water generated by the hydrogen-oxygen fuel cell component 20, but the hydrogen generated by the electrolytic component 30 will be consumed by the items in the storage chamber 10. After long-term use, the water content in the electrolyte inside the electrolytic component 30 will still decrease, causing the ion concentration to increase, which may cause corrosion to the materials used in the electrolytic component 30 and affect the purity of the generated gas. Therefore, the ion concentration of the electrolyte cannot be too high. In addition, an appropriate electrolyte ion concentration can improve the electrolysis efficiency and increase the rate of hydrogen generation. Therefore, the ion concentration of the electrolyte cannot be too low. Based on this, it is necessary to control the electrolyte concentration of the electrolytic component 30 within a reasonable range, and when the ion concentration in the electrolyte rises to a certain level, the electrolytic component 30 needs to be replaced.

[0074] Specifically, if Figure 8 As shown, the electrolytic chamber of the electrolytic component 30 is installed with an ion concentration sensor 304, which is used to detect the actual ion concentration of the electrolyte. The ion concentration sensor 304 is communicatively connected to the processor of the storage device 1, and the processor analyzes whether the electrolytic component 30 is abnormal based on the detection data of the ion concentration sensor 304.

[0075] like Figure 15 As shown, the analysis process is as follows: first, the items placed in the storage chamber 10 are identified, and the corresponding working state is selected according to the placed items. Before starting the electrolytic component 30, the required amount of hydrogen to be prepared is calculated based on the preset hydrogen concentration of the item and the actual hydrogen concentration in the storage chamber 401, and then the required water consumption is calculated based on the required amount of hydrogen to be prepared; the maximum water consumption allowed to be consumed is calculated based on the difference between the actual ion concentration of the electrolyte and the preset upper limit concentration, and the maximum water consumption is compared with the required water consumption. If the required water consumption is not greater than the maximum water consumption allowed to be consumed, the electrolytic component 30 is started. If the required water consumption is greater than the maximum water consumption allowed to be consumed, it is determined that the electrolytic component 30 is abnormal, the electrolytic component 30 is not started, and an abnormal prompt signal is issued.

[0076] Based on this, it is also possible to analyze whether the electrolytic component 30 is abnormal based on the actual ion concentration of the electrolyte. When the actual ion concentration is higher than the preset safety range but does not exceed the preset upper limit concentration, the electrolytic component 30 is abnormal and a water replenishment reminder signal is issued; when the actual ion concentration exceeds the preset upper limit concentration, the electrolytic component 30 is abnormal and a replacement electrolytic component reminder signal is issued.

[0077] For ease of understanding, taking an application example, the initial ion concentration of the electrolyte is 0.1M, the preset upper limit concentration is 1M, and the preset safety range is 0.1M~0.6M. When the actual ion concentration exceeds 0.6M but is less than 1M, the user is prompted to replenish water to the electrolytic component 30. When the actual ion concentration exceeds 1M, the user is prompted to replace the electrolytic component 30.

[0078] The storage device 1 of the present invention can be used in refrigeration equipment, which includes but is not limited to refrigerators or cold storages.

[0079] It should be noted that the terms used above are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof. The order of execution of actions, steps, etc. in the devices and methods shown in the specification and the drawings can be implemented in any order as long as there is no special explicit limitation on the order and as long as the output of the previous processing is not used in the subsequent processing. Similar sequential terms used for the convenience of description do not mean that they must be implemented in such an order.

[0080] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and apparatus should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A storage device, characterized in that: include: storage cavity; The hydrogen-oxygen fuel cell assembly, wherein the storage cavity inputs oxygen to the positive electrode of the hydrogen-oxygen fuel cell assembly through the oxygen guide assembly; An electrolysis assembly is used to supply hydrogen to the storage chamber and / or the negative electrode of the hydrogen-oxygen fuel cell assembly.

2. The storage device according to claim 1, characterized in that The hydrogen-oxygen fuel cell assembly is provided with a drainage pipe, and the water generated by the hydrogen-oxygen fuel cell assembly is introduced into the electrolysis assembly through the drainage pipe.

3. The storage device according to claim 1, wherein: The hydrogen and oxygen fuel cell assembly is electrically connected to the oxygen guide assembly and / or the electrolysis assembly.

4. The storage device according to claim 3, characterized in that The oxygen guide assembly includes: an oxygen delivery pipeline connected between the storage chamber and the hydrogen-oxygen fuel cell assembly, an oxygen-enriched membrane installed in the oxygen delivery pipeline, and a blower that drives the gas in the storage chamber into the oxygen delivery pipeline. The hydrogen-oxygen fuel cell assembly is electrically connected to the blower.

5. The storage device according to claim 1, wherein: A first hydrogen concentration sensor for detecting actual hydrogen concentration and an oxygen concentration sensor for detecting actual oxygen concentration are installed in the storage cavity. Both the first hydrogen concentration sensor and the oxygen concentration sensor are communicatively connected to the processor of the storage device.

6. The storage device according to claim 1, wherein: The electrolysis assembly supplies hydrogen to the storage chamber and / or the negative electrode of the hydrogen-oxygen fuel cell assembly through a hydrogen storage and distribution assembly; The hydrogen storage and distribution assembly includes: a storage chamber and a hydrogen input pipeline connected to the electrolysis assembly, the storage chamber is connected to the storage chamber through a first hydrogen input pipeline, and the negative electrode of the hydrogen-oxygen fuel cell assembly is connected to the storage chamber through a second hydrogen input pipeline.

7. The storage device according to claim 6, characterized in that The storage chamber is equipped with a second hydrogen concentration sensor, and the second hydrogen concentration sensor is communicatively connected to the processor of the storage device.

8. The storage device according to claim 1, wherein: The electrolysis chamber of the electrolysis component is equipped with an ion concentration sensor, and the ion concentration sensor is communicatively connected to the processor of the storage device.

9. The storage device according to any one of claims 1 to 8, characterized in that: The storage device can operate in at least one of the following working states: a normal preservation state, an oxygen reduction preservation state, a hydrogenation preservation state, and a hydrogenation and oxygen reduction preservation state; In the normal preservation state, the electrolysis component and the oxygen guide component are not started, and the hydrogen-oxygen fuel cell component does not work; In the oxygen reduction and freshness preservation state, the oxygen guide assembly starts to input oxygen to the positive electrode of the hydrogen-oxygen fuel cell assembly, and the electrolysis assembly starts to supply hydrogen to the negative electrode of the hydrogen-oxygen fuel cell assembly, and the hydrogen-oxygen fuel cell assembly works; In the hydrogenation and preservation state, the electrolysis component is started to supply hydrogen to the storage chamber, the oxygen guide component is not started, and the hydrogen-oxygen fuel cell component is not working; In the hydrogenation and oxygenation preservation state, the storage device first operates in the oxygenation preservation state and then operates in the hydrogenation preservation state.

10. Refrigeration equipment, characterized in that include: The storage device according to any one of claims 1 to 9.

11. The refrigeration equipment according to claim 10, characterized in that: The refrigeration equipment is a refrigerator or a cold storage.

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