A humidifying device, a humidity control method and a refrigerator

Abstract

The present invention discloses a humidification device, a humidity control method, and a refrigerator. The device includes a humidification box, which is disposed within the refrigerator's fresh-keeping storage compartment and stores water. The humidification box also includes: a float, which floats on the water surface within the humidification box; a porous material, which is disposed on the float and partially immersed in water and partially exposed to the air within the humidification box, and is configured to absorb moisture within the humidification box and then release the absorbed moisture into the air within the humidification box. The device also includes: an electrostatic field generator, which is disposed within the fresh-keeping storage compartment and is configured to generate an electrostatic field to accelerate the evaporation of moisture within the humidification box. The present invention ensures humidity regulation efficiency while avoiding the use of atomization and heating devices, thereby saving energy.

Description

Technical Field

[0001] The present invention relates to the technical field of low-temperature storage equipment, and in particular to a humidifying device, a humidity control method and a refrigerator. Background Art

[0002] A series of physiological and biochemical changes occurring within organisms are all mediated by water; that is, they must occur in the presence of water. Fresh fruit and vegetable tissues typically contain a high water content (85% to 95%), with ample cellular juice and high turgor pressure, resulting in a firm, plump, lustrous, and elastic appearance. However, transpiration continues even after harvest, and water loss through transpiration is often not replaced. Unsuitable storage conditions can reduce quality and lead to a range of adverse reactions. Most refrigerators today use forced cooling with a fan. While this provides rapid cooling and uniform temperature distribution, the circulating air must pass through the evaporator for heat exchange and cooling, causing its water content to condense on the evaporator, lowering the humidity within the refrigerator compartment. Typically, humidity within a refrigerator compartment is maintained between 10% and 15% RH, drying out the food within the refrigerator compartment and dehydrating it.

[0003] Existing refrigerators with humidification functions primarily rely on passive humidification, relying on the evaporation of moisture from the contents and adjusting the pore size of the compartment to control the humidity within the fresh-keeping storage chamber. One current humidification method utilizes a permeable membrane, a material that is permeable only to water molecules and impermeable to other gases. This membrane only exchanges water with the outside world, not gases, and is unaffected by changes in ambient airflow. This results in lower humidity control efficiency. Another method uses atomization or heated evaporation, which offers higher humidity control efficiency but higher energy consumption.

[0004] With regard to the problem that humidification devices in the prior art cannot balance humidity regulation efficiency and energy consumption, no effective solution has been proposed so far. Summary of the Invention

[0005] The embodiments of the present invention provide a humidifying device, a humidity control method, and a refrigerator to solve the problem in the prior art that the humidifying device cannot take into account both humidity adjustment efficiency and energy consumption.

[0006] To solve the above technical problems, the present invention provides a humidifying device, wherein the device includes a humidifying box, the humidifying box is arranged in the fresh-keeping storage chamber of the refrigerator, and stores water therein, and the humidifying box also includes:

[0007] A float, floating on the water surface in the humidifying box;

[0008] a porous material disposed on the float, wherein the porous material is partially immersed in water and partially exposed to the air in the humidification box, and is used to absorb moisture in the humidification box and then release the absorbed moisture into the air in the humidification box;

[0009] The device further comprises:

[0010] The electrostatic field generator is arranged in the fresh-keeping storage chamber and is used to generate an electrostatic field to accelerate the evaporation of water in the humidifying box.

[0011] Furthermore, the electrostatic field generator comprises:

[0012] a needle-shaped negative electrode, disposed on the top of the humidifying box;

[0013] The positive electrode plate is arranged at the bottom of the humidifying box and is used for interacting with the needle-shaped negative electrode to generate an electrostatic field.

[0014] Furthermore, the device further comprises:

[0015] A position sensor is provided in the fresh-keeping storage chamber and is used to monitor whether the fresh-keeping storage chamber is opened or closed;

[0016] The first weight sensor is arranged at the bottom of the fresh-keeping storage chamber and is used to detect the weight increase of the food stored in the fresh-keeping storage chamber.

[0017] Furthermore, the device further comprises:

[0018] a timer connected to the position sensor and used to accumulate the duration of the fresh-keeping storage chamber being closed;

[0019] A humidity sensor is provided in the fresh-keeping storage chamber and is used to detect the humidity in the fresh-keeping storage chamber;

[0020] a computing chip, connected to the first weight sensor, configured to calculate a corresponding operating voltage of the electrostatic field generator according to an increase in the weight of the food stored in the fresh-keeping storage chamber;

[0021] A controller is connected to the computing chip and the electrostatic field generator, and is used to control the operating voltage of the electrostatic field generator according to the calculation result of the computing chip.

[0022] Furthermore, the humidifying box further includes:

[0023] a second weight sensor, disposed on the outer side of the bottom of the humidifying box, for monitoring the weight of the humidifying box and transmitting the weight to the controller of the humidifying device;

[0024] A reminder device is connected to the controller and is used to send a reminder message when the weight reduction of the humidification box is greater than a preset value to remind the user to add water to the humidification box.

[0025] Furthermore, the porous material is volcanic rock.

[0026] The present invention also provides a refrigerator comprising the above-mentioned humidifying device.

[0027] The present invention also provides a humidity control method, which is applied to the above-mentioned humidification device, and the method comprises:

[0028] After determining that food is stored in the fresh-keeping storage chamber, determining whether to turn on the electrostatic field generator according to the humidity in the fresh-keeping storage chamber;

[0029] If yes, the operating voltage of the electrostatic field generator is controlled according to the weight increase of the food in the fresh-keeping storage chamber.

[0030] Furthermore, it is determined that food is stored in the fresh-keeping storage compartment, including:

[0031] monitoring whether the fresh-keeping storage chamber is opened;

[0032] After the fresh-keeping box is opened, detecting whether the weight of the food stored in the fresh-keeping storage chamber increases;

[0033] If yes, continue to monitor whether the fresh storage chamber is closed;

[0034] If the fresh-keeping storage chamber is closed, it is determined that food is stored in the fresh-keeping storage chamber.

[0035] Furthermore, after determining that food is stored in the fresh-keeping storage chamber, determining whether to turn on the electrostatic field generator according to the humidity in the fresh-keeping storage chamber includes:

[0036] After determining the preset time period for storing food in the fresh-keeping storage chamber, determining whether the humidity in the fresh-keeping storage chamber is greater than a preset humidity threshold;

[0037] If yes, determining not to turn on the electrostatic field generator;

[0038] If not, it is determined to turn on the electrostatic field generator.

[0039] Furthermore, controlling the operating voltage of the electrostatic field generator according to the weight increase of the food in the fresh-keeping storage chamber includes:

[0040] Calculating the required operating voltage of the electrostatic field generator according to the weight increase of the food in the fresh-keeping storage chamber; wherein the greater the weight increase, the greater the operating voltage;

[0041] The electrostatic field generator is controlled to start and operate according to the required working voltage.

[0042] Furthermore, after controlling the operating voltage of the electrostatic field generator according to the weight increase of the food in the fresh-keeping storage chamber, the method further includes:

[0043] monitoring the weight reduction of the humidification box;

[0044] If the weight reduction of the humidification box is greater than a preset threshold, the control prompter sends a prompt message to remind the user to add water to the humidification box.

[0045] The present invention also provides a computer-readable storage medium having a computer program stored thereon, and the humidity control method is implemented when the program is executed by a processor.

[0046] The technical solution of the present invention is applied, by setting a porous material to absorb the moisture in the humidification box, and then release the absorbed moisture into the air in the humidification box. In order to ensure that the porous material absorbs and releases water at the same time, a float is set, and the porous material is set on the float to ensure that the porous material is partially immersed in water and partially exposed to the air in the humidification box. An electrostatic field generator is also used to generate an electrostatic field to promote moisture evaporation. Combined with the function of the porous material to absorb and release water molecules, the humidity regulation efficiency can be guaranteed, while avoiding the use of atomization and heating devices, saving energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a structural diagram of a humidifying device according to an embodiment of the present invention;

[0048] Figure 2 Schematic diagram of water evaporation in a humidifying device according to an embodiment of the present invention;

[0049] Figure 3 Schematic diagram of the distribution of needle-shaped negative electrodes on the top cover according to an embodiment of the present invention;

[0050] Figure 4 is a structural diagram of a humidifying device according to another embodiment of the present invention;

[0051] Figure 5 is a circuit structure block diagram of a humidifying device according to an embodiment of the present invention;

[0052] Figure 6 is a structural schematic diagram of a refrigerator according to an embodiment of the present invention;

[0053] Figure 7 is a flow chart of a humidity control method according to an embodiment of the present invention;

[0054] Figure 8 is a flow chart of a humidity control method according to another embodiment of the present invention;

[0055] Figure 9 The figure is a humidity change curve diagram of the fresh-keeping storage chamber before and after humidification using the humidity control method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0056] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only some, not all, of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0057] The terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a," "an," "the," and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, and unless the context clearly indicates otherwise, "a plurality" generally includes at least two.

[0058] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0059] It should be understood that although the terms "first," "second," etc. may be used to describe weight sensors in embodiments of the present invention, these weight sensors should not be limited to these terms. These terms are merely used to distinguish weight sensors disposed in different locations. For example, a first weight sensor may also be referred to as a second weight sensor, and similarly, a second weight sensor may also be referred to as a first weight sensor, without departing from the scope of embodiments of the present invention.

[0060] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to the determination" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)," depending on the context.

[0061] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or device. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or device comprising the element.

[0062] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0063] Example 1

[0064] This embodiment provides a humidifying device, Figure 1 is a structural diagram of a humidifying device according to an embodiment of the present invention, as shown in FIG. Figure 1 As shown, the device includes a humidifying box 1, which is arranged in the fresh-keeping storage chamber of the refrigerator and stores water therein. The humidifying box 1 also includes:

[0065] The float 11 is floated on the water surface in the humidifying box. In this embodiment, the float 11 can be made of EPS foam, blow molding or blister material, and a through hole is opened at the bottom to facilitate water to penetrate into the porous material.

[0066] The porous material 12 is disposed on the float 11 . Part of the porous material 12 is immersed in water and part of the porous material 12 is exposed to the air in the humidification box 1 . The porous material 12 is used to absorb moisture in the humidification box 1 and then release the absorbed moisture into the air in the humidification box 1 .

[0067] The porous material 12 has a unique "breathing function". After absorbing moisture, it can slowly release the moisture to adjust the humidity of the surrounding environment. Humidification can be achieved in the refrigerator at a lower cost, and the design cost is reduced. At the same time, fruits and vegetables will not condense due to excessive humidity in the refrigerator, avoiding the occurrence of fruit and vegetable corruption and deterioration.

[0068] like Figure 1 As shown, the humidifying device further includes: an electrostatic field generator 2, which is arranged in the fresh-keeping storage chamber and is used to generate an electrostatic field to accelerate the evaporation of water in the humidifying box.

[0069] The evaporation rate of water in ordinary humidification methods is low and cannot effectively meet the humidity requirements for fruit and vegetable storage. Under the influence of the electrostatic field, the evaporation rate of water is significantly accelerated. The thermal conductivity in the electrostatic field is 1.5 times higher than that in gas, 1.6 times higher than that in solid, and 2 times higher than that in liquid. The electrostatic field has the effect of promoting the evaporation of water, mainly because: (1) Water molecules are polar molecules, and there are a large number of water molecule clusters in water, and the structure of water molecule clusters is a dynamic structure. Because the water molecules on the surface of the liquid are affected by the uneven electric field, the hydrogen bonds between the water molecules are broken, and the water molecule clusters become smaller, so the water can easily escape from the solution; (2) Due to the electric suction or electric convection caused by the electrostatic phenomenon, the heat transfer rate is increased, thereby accelerating the evaporation of water.

[0070] Although the electrostatic field generator in this embodiment has a high release voltage, the current in the electric field is very small, only 0 to 10 μA, and can be maintained for a long time when there is no current, consuming very little energy and saving resources. At the same time, after the electrostatic field device is turned off, the high-voltage static electricity can still be maintained for a period of time after it is released. In addition, the electrostatic field can kill microorganisms in the humidification box because the bacterial cell membrane will experience perforation polarization under the action of the electric field, thereby causing the bacterial cell membrane to rupture and the intracellular juice to be lost, affecting the biochemical reactions in the membrane and causing the bacterial cells to be inactivated.

[0071] The humidifying device of this embodiment absorbs moisture in the humidifying box 1 by setting a porous material 12, and then releases the absorbed moisture into the air in the humidifying box 1. In order to ensure that the porous material 12 absorbs and releases water at the same time, a float 11 is set, and the porous material 12 is set on the float 11, ensuring that the porous material 12 is partially immersed in water and partially exposed to the air in the humidifying box 1. An electrostatic field generator 2 is also used to generate an electrostatic field to promote moisture evaporation. Combined with the function of the porous material 12 to absorb and release water molecules, the humidity regulation efficiency can be guaranteed, while avoiding the use of atomization and heating devices, saving energy consumption.

[0072] like Figure 1 As shown, in order to generate a stable electrostatic field, the electrostatic field generator 2 includes: a needle-shaped negative electrode 21, which is arranged on the top of the humidification box 1 and can be located on the top cover 14 of the humidification box 1; a positive electrode plate 22, which is arranged at the bottom of the humidification box 1 and is used to interact with the needle-shaped negative electrode 21 to generate an electrostatic field. In this embodiment, the positive electrode plate can be made of aluminum plate, copper plate, conductive ceramic plate, etc., and its thickness can be 0.5-2 mm.

[0073] Figure 2 Schematic diagram of water evaporation in a humidifying device according to an embodiment of the present invention, as shown in FIG. Figure 2As shown, an electrostatic field E is formed between the needle-shaped negative electrode 21 and the positive electrode plate 22 in the electrostatic field generator 2, promoting the evaporation of water molecules inside the humidification box 1. Based on the porous material, the electrostatic field is applied, and the water molecules in the humidification box are affected by the uneven electric field, which causes the hydrogen bonds between the water molecules to break and the water molecules to become smaller. Therefore, the water can easily escape from the solution, accelerating the evaporation of water, which helps to increase the humidity in the humidification space and ensure the freshness of the food.

[0074] Figure 3 FIG. 1 is a schematic diagram of the distribution of needle-shaped negative electrodes on the top cover according to an embodiment of the present invention. Figure 3 As shown, there are multiple needle-shaped negative electrodes 21, which are distributed on the top cover 14 at a certain distance. In this embodiment, the spacing between the needle-shaped negative electrodes 21 can be 25-35 mm, and the height of the needle-shaped negative electrodes 21 can be 5-10 cm.

[0075] The porous material described in this embodiment has the characteristic of a large specific surface area, and can adsorb harmful bacteria in water and heavy metal ions that affect organisms, and even some residual chlorine in the water. The porous material 12 can be a porous material such as volcanic rock, zeolite, and bubble stone, preferably volcanic rock. Volcanic rock contains rich ionic elements and can slightly release infrared and α rays, which can increase the activity of water molecules and have a good disinfection effect.

[0076] In actual application, people will open the refrigerator's fresh-keeping storage room from time to time to store food. After each storage of food, the humidity in the fresh-keeping storage room will change. Figure 4 This is a structural diagram of a humidifying device according to another embodiment of the present invention, in order to adjust the humidity in time to ensure that the humidity in the fresh-keeping storage chamber is always within a preset range, such as Figure 4 As shown, the humidifying device further includes: a position sensor 3, disposed in the fresh-keeping storage chamber, for monitoring whether the fresh-keeping storage chamber is open or closed; a first weight sensor 6, disposed at the bottom of the fresh-keeping storage chamber, for detecting the weight increase of the food stored in the fresh-keeping storage chamber. It also includes: a timer 4, connected to the position sensor 3, for accumulating the length of time the fresh-keeping storage chamber has been closed after food is stored; a humidity sensor 5, disposed in the fresh-keeping storage chamber, for detecting the humidity within the fresh-keeping storage chamber; a computing chip (not shown in the figure), connected to the first weight sensor 6, for calculating the corresponding operating voltage of the electrostatic field generator based on the weight increase of the food stored in the fresh-keeping storage chamber; and a controller (not shown in the figure), connected to the computing chip and the electrostatic field generator 2, for controlling the operating voltage of the electrostatic field generator based on the calculation result of the computing chip.

[0077] Position sensor 3 monitors whether the fresh-keeping compartment is open. After the fresh-keeping compartment is opened, first weight sensor 6 detects whether the weight of the food stored in the fresh-keeping compartment has increased. If the weight of the food stored in the fresh-keeping compartment has increased, monitoring continues to determine whether the fresh-keeping compartment is closed. If the fresh-keeping compartment is closed, it is determined that food is stored in the fresh-keeping compartment. Timer 4 accumulates the length of time the fresh-keeping compartment has been closed. After the fresh-keeping compartment has been closed for a preset period of time, it determines whether the humidity in the fresh-keeping compartment is still within a preset range. If not, electrostatic field generator 2 is activated and controlled to operate at a precalculated operating voltage, humidifying the fresh-keeping compartment in conjunction with the absorption and release of water by the porous material.

[0078] If the water in the humidifying box 1 is exhausted, it will not be able to humidify the fresh-keeping storage chamber. In order to avoid this situation, it is necessary to replenish the humidifying box 1 with water in time when the water in the humidifying box 1 is insufficient. Figure 1 As shown, the humidifying box further includes: a second weight sensor 13, which is arranged on the outside of the bottom of the humidifying box, for monitoring the weight of the humidifying box and transmitting it to the controller of the humidifying device; a prompter (not shown in the figure), which is connected to the above-mentioned controller. When the weight reduction of the humidifying box is greater than a preset value, the above-mentioned controller controls the prompter to send a prompt message, reminding the user to add water to the humidifying box.

[0079] Figure 5 FIG. 1 is a circuit structure block diagram of a humidifying device according to an embodiment of the present invention. Figure 5 As shown, the humidifying device of this embodiment uses the controller 7 as the core component, and the controller 7 is respectively connected to the electrostatic field generator 2, the position sensor 3, the first weight sensor 6, the timer 4, the humidity sensor 5, the computing chip 8, the second weight sensor 13, and the prompter 9.

[0080] Example 2

[0081] This embodiment provides a refrigerator, Figure 6 FIG. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention. Figure 6 As shown, the refrigerator includes: a fresh-keeping storage chamber 10, a variable temperature chamber 20 and a refrigerating chamber 30, wherein the fresh-keeping storage chamber 10 also includes the humidifying device in the above embodiment for improving humidity regulation efficiency and reducing energy consumption.

[0082] Example 3

[0083] This embodiment provides a humidity control method, which is applied to the humidifying device of the above embodiment 1. Figure 7 Flowchart of the humidity control method according to an embodiment of the present invention. Figure 7 As shown, the method includes:

[0084] S0101, after determining that food is stored in the fresh-keeping storage chamber, determine whether to turn on the electrostatic field generator based on the humidity in the fresh-keeping storage chamber.

[0085] S0102: If the electrostatic field generator needs to be turned on, the operating voltage of the electrostatic field generator is controlled according to the weight increase of the food in the fresh-keeping storage chamber.

[0086] The humidity control method of this embodiment, after determining that food is stored in the fresh-keeping storage chamber, determines whether it is necessary to turn on the electrostatic field generator based on the humidity in the fresh-keeping storage chamber. When the electrostatic field generator needs to be turned on, the operating voltage of the electrostatic field generator is controlled according to the weight increase of the food in the fresh-keeping storage chamber, thereby achieving precise control of the humidity in the fresh-keeping storage chamber.

[0087] Determining whether food is stored in the fresh-keeping storage chamber specifically includes: monitoring whether the fresh-keeping storage chamber is open; after the fresh-keeping box is opened, detecting whether the weight of the food stored inside the fresh-keeping storage chamber increases; if so, continuing to monitor whether the fresh-keeping storage chamber is closed; if the fresh-keeping storage chamber is closed, determining that food is stored in the fresh-keeping storage chamber.

[0088] After food is placed in the fresh-keeping storage chamber, if the humidity is tested immediately, the humidity change may not be too obvious. The humidity in the fresh-keeping storage chamber will change significantly only after a period of time. Therefore, after determining that food is placed in the fresh-keeping storage chamber, determine whether to turn on the electrostatic field generator based on the humidity in the fresh-keeping storage chamber, including: after determining the preset time for placing food in the fresh-keeping storage chamber, judge whether the humidity in the fresh-keeping storage chamber is greater than the preset humidity threshold; if so, it indicates that the humidity in the fresh-keeping storage chamber is within the preset range, and it is determined that there is no need to turn on the electrostatic field generator; if not, it indicates that the humidity in the fresh-keeping storage chamber is not within the preset range and is below the lower humidity limit, and it is determined that the electrostatic field generator needs to be turned on, in combination with the porous material, to humidify the fresh-keeping storage chamber.

[0089] In order to accurately control the working voltage of the electrostatic field generator, the working voltage of the electrostatic field generator is controlled according to the weight increase of the food in the fresh-keeping storage chamber, including: calculating the corresponding working voltage of the electrostatic field generator according to the weight increase of the food in the fresh-keeping storage chamber; wherein, the greater the above-mentioned weight increase, the greater the above-mentioned working voltage; controlling the electrostatic field generator to turn on and operate according to the required working voltage.

[0090] If the water in the humidifying box 1 is exhausted, it will not be able to humidify the fresh-keeping storage chamber. In order to avoid this situation, it is necessary to replenish the humidifying box 1 with water in time when the water in the humidifying box 1 is insufficient. After controlling the working voltage of the electrostatic field generator according to the weight increase of the food in the fresh-keeping storage chamber, the above method also includes: monitoring the weight decrease of the humidifying box; if the weight decrease of the humidifying box is greater than a preset threshold, the control prompter sends a prompt message to remind the user to add water to the humidifying box.

[0091] Figure 8 is a flow chart of a humidity control method according to another embodiment of the present invention. Figure 8 As shown, the method includes the following preferred steps:

[0092] S1, after the fresh-keeping storage chamber of the refrigerator is opened, detect whether the weight of the food in the fresh-keeping storage chamber increases, if yes, execute step S2, if not, return to step S1.

[0093] S2, after detecting that the refrigerator is closed, determining whether food is stored in the fresh-keeping storage chamber.

[0094] S3, after a preset time period, determine whether the humidity in the fresh-keeping storage chamber is greater than a preset humidity threshold T0, if yes, return to step S1, if not, execute step S4.

[0095] S4, determining whether the weight increase ΔG of the food in the fresh-keeping storage chamber is within a first preset range G1, if yes, executing step S5, if not, executing step S6.

[0096] S5, turn on the electrostatic field generator and adjust its operating voltage to U1.

[0097] S6, determining whether the weight increase ΔG of the food in the fresh-keeping storage chamber is within a second preset range G2, if yes, executing step S7, if not, executing step S8.

[0098] S7, turn on the electrostatic field generator and adjust its operating voltage to U2.

[0099] S8, determining that the weight increase ΔG of the food in the fresh-keeping storage chamber is within a third preset range G3, turning on the electrostatic field generator and adjusting its operating voltage to U3.

[0100] The first preset range G1 is when ΔG is less than a first preset threshold, the second preset range G2 is when ΔG is greater than or equal to the first preset threshold and less than or equal to the second preset threshold, and the third preset range G3 is when ΔG is greater than the third preset threshold. In one specific embodiment, G1 is less than 500g, G2 is in the range of [501, 1000]g, and G3 is greater than 1000g. The values of U1, U2, and U3 are 10kV, 20kV, and 30kV, respectively.

[0101] S9, determining whether the humidity in the fresh-keeping storage chamber is greater than a preset humidity threshold T0, if yes, executing step S10, if not, executing step S11.

[0102] S10, turn off the electrostatic field generator.

[0103] S11, determining whether the weight reduction of the humidifying box is greater than a preset threshold value G0, if yes, executing step S12, if not, repeating step S11.

[0104] S12, sending a prompt message to prompt the user to add water.

[0105] In a specific embodiment, the value of the preset humidity threshold T0 is 60%, and the value of the preset threshold G0 is 10g.

[0106] Figure 9 The humidity change curve diagram of the fresh-keeping storage room before and after humidification by the humidity control method of the embodiment of the present invention is as follows: Figure 9 As shown in the figure, when the fresh-keeping storage room is not humidified, the humidity in the refrigerator room can only be maintained in the range of 10%RH~15%RH. However, when a humidification module is installed in the refrigerator room, the relative humidity in the humidified space will be significantly improved, and the humidity can be maintained in the range of 60%RH~70%RH. Experimental verification shows that the combined action of the electrostatic field generator and the above-mentioned porous material, combined with the corresponding humidity control method, can effectively improve the relative humidity in the fresh-keeping storage room.

[0107] Example 4

[0108] This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the humidity control method described above is implemented.

[0109] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, or of course, by hardware. Based on this understanding, the essence of the above technical solution or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or certain parts of the embodiments.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A humidifying device, characterized in that: The device includes a humidifying box, which is arranged in the fresh-keeping storage chamber of the refrigerator and stores water therein. The humidifying box also includes: A float, floating on the water surface in the humidifying box; a porous material disposed on the float, wherein the porous material is partially immersed in water and partially exposed to the air in the humidification box, and is used to absorb moisture in the humidification box and then release the absorbed moisture into the air in the humidification box; The device further comprises: The electrostatic field generator is arranged in the fresh-keeping storage chamber and is used to generate an electrostatic field to accelerate the evaporation of water in the humidifying box.

2. The device according to claim 1, characterized in that The electrostatic field generator comprises: a needle-shaped negative electrode, disposed on the top of the humidifying box; The positive electrode plate is arranged at the bottom of the humidifying box and is used for interacting with the needle-shaped negative electrode to generate an electrostatic field.

3. The device according to claim 1, characterized in that The device further comprises: A position sensor is provided in the fresh-keeping storage chamber and is used to monitor whether the fresh-keeping storage chamber is opened or closed; The first weight sensor is arranged at the bottom of the fresh-keeping storage chamber and is used to detect the weight increase of the food stored in the fresh-keeping storage chamber.

4. The device according to claim 3, characterized in that The device further comprises: a timer connected to the position sensor and used to accumulate the duration of the fresh-keeping storage chamber being closed; A humidity sensor is provided in the fresh-keeping storage chamber and is used to detect the humidity in the fresh-keeping storage chamber; a computing chip, connected to the first weight sensor, configured to calculate a corresponding operating voltage of the electrostatic field generator according to an increase in the weight of the food stored in the fresh-keeping storage chamber; A controller is connected to the computing chip and the electrostatic field generator, and is used to control the operating voltage of the electrostatic field generator according to the calculation result of the computing chip.

5. The device according to claim 1, characterized in that The humidifying box also includes: a second weight sensor, disposed on the outer side of the bottom of the humidifying box, for monitoring the weight of the humidifying box and transmitting the weight to the controller of the humidifying device; A reminder device is connected to the controller and is used to send a reminder message when the weight reduction of the humidification box is greater than a preset value to remind the user to add water to the humidification box.

6. The device according to claim 1, characterized in that The porous material is volcanic rock.

7. A refrigerator, characterized in that: A humidifying device comprising the humidifying device according to any one of claims 1 to 6.

8. A humidity control method, applied to the humidifying device according to any one of claims 1 to 6, characterized in that: The method comprises: After determining that food is stored in the fresh-keeping storage chamber, determining whether to turn on the electrostatic field generator according to the humidity in the fresh-keeping storage chamber; If yes, the operating voltage of the electrostatic field generator is controlled according to the weight increase of the food in the fresh-keeping storage chamber.

9. The method according to claim 8, characterized in that Make sure the fresh food compartment is stocked with food, including: monitoring whether the fresh-keeping storage chamber is opened; After the fresh-keeping storage chamber is opened, detecting whether the weight of the food stored in the fresh-keeping storage chamber increases; If yes, continue to monitor whether the fresh storage chamber is closed; If the fresh-keeping storage chamber is closed, it is determined that food is stored in the fresh-keeping storage chamber.

10. The method according to claim 8, characterized in that After determining that food is stored in the fresh-keeping storage chamber, determining whether to turn on the electrostatic field generator according to the humidity in the fresh-keeping storage chamber includes: After determining the preset time period for storing food in the fresh-keeping storage chamber, determining whether the humidity in the fresh-keeping storage chamber is greater than a preset humidity threshold; If yes, determining not to turn on the electrostatic field generator; If not, it is determined to turn on the electrostatic field generator.

11. The method according to claim 8, characterized in that The operating voltage of the electrostatic field generator is controlled according to the weight increase of the food in the fresh-keeping storage chamber, including: Calculating the required operating voltage of the electrostatic field generator according to the weight increase of the food in the fresh-keeping storage chamber; wherein the greater the weight increase, the greater the operating voltage; The electrostatic field generator is controlled to start and operate according to the required working voltage.

12. The method according to claim 8, characterized in that After controlling the operating voltage of the electrostatic field generator according to the weight increase of the food in the fresh-keeping storage chamber, the method further includes: monitoring the weight reduction of the humidification box; If the weight reduction of the humidification box is greater than a preset threshold, the control prompter sends a prompt message to remind the user to add water to the humidification box.

13. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 8 to 12 is implemented.

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