Electric field fresh-keeping device, electric field control method, controller and refrigeration equipment

Abstract

The invention discloses an electric field fresh-keeping device, an electric field control method, a controller and refrigeration equipment, in the fresh-keeping process of food materials, under the condition that an air door is opened, a power supply is controlled to apply first voltage to a plate-shaped electrode and a needle-shaped electrode, the plate-shaped electrode provides an electric field to keep the food materials fresh, and meanwhile, the point of the needle-shaped electrode discharges to ionize air; when the air door is closed, the power supply is controlled to apply a second voltage to the plate-shaped electrode and the needle-shaped electrode, so that the food materials in the storage assembly can be sterilized and deodorized, and the electric field fresh-keeping function and the ionization sterilization function can be realized; and when the air door is closed, the power supply is controlled to apply a second voltage to the plate-shaped electrode and the needle-shaped electrode, so that the food materials can be sterilized. The plate-shaped electrode and the needle-shaped electrode provide an electric field to keep food fresh, and the electric field fresh-keeping function is achieved, so that the electric field fresh-keeping device can achieve electric field fresh-keeping and ionization sterilization through one electric field assembly, and can work in combination with the opening and closing state of the air door to achieve the effects of fresh-keeping, sterilization and odor removal.

Description

Technical Field

[0001] The present application relates to the technical field of food preservation, and in particular to an electric field preservation device, an electric field control method, a controller and a refrigeration device. Background Art

[0002] As food ingredients are stored in the refrigerator, microorganisms may grow and odors may be produced over time. For example, due to changes in the freshness of meat, juice loss and bacterial growth may occur during storage, seriously affecting the preservation of the meat.

[0003] At present, the use of electric fields to preserve food is mainly to form an electric field between two plate electrodes, and to form a voltage difference between the inside and outside of the cell through the external electric field energy, which affects the reaction on the cell membrane, regulates the movement of water molecules, and slows down the freezing and corruption of food. However, the electric field used for preservation cannot achieve the sterilization function, and the refrigerator also needs additional sterilization methods, such as ultraviolet components, photocatalyst components, etc., which increases the complexity and cost of the refrigerator. Summary of the invention

[0004] The embodiments of the present application provide an electric field preservation device, an electric field control method, a controller and a refrigeration device, which can realize electric field preservation and ionization sterilization through an electric field component.

[0005] In a first aspect, an embodiment of the present application provides an electric field fresh-keeping device, wherein the electric field fresh-keeping device is arranged in a refrigeration device, and the electric field fresh-keeping device comprises: A storage component, wherein the storage space of the storage component is connected to the air supply channel of the refrigeration device through a damper; An electric field component, comprising a discharge electrode and a power supply, wherein the discharge electrode comprises a plate electrode and a needle electrode, wherein the plate electrode and the needle electrode are conductively connected, and the needle electrode is located on an air outlet path of the damper; The controller controls the power supply to apply a first voltage to the discharge electrode if the damper is in an open state, and controls the power supply to apply a second voltage to the discharge electrode if the damper is in a closed state; wherein the first voltage is greater than a threshold voltage required to cause the needle-shaped electrode to have a tip ionization discharge, and the second voltage is less than a threshold voltage required to cause the needle-shaped electrode to have a tip ionization discharge.

[0006] In some embodiments, the needle-shaped electrode includes a metal fixing bar and a plurality of carbon fiber bundles, the carbon fiber bundles are arranged at intervals on the metal fixing bar, and the metal fixing bar is connected to the plate-shaped electrode.

[0007] In some embodiments, the needle-shaped electrode includes a plurality of metal fixing strips, and the plurality of metal fixing strips are arranged parallel to each other.

[0008] In some embodiments, the plate-shaped electrode is provided with an opening, the opening is opposite to the air outlet of the damper, the needle-shaped electrode is arranged at the opening, and at least one end of the metal fixing strip is connected to the edge of the opening.

[0009] In some embodiments, the opening is a hollow portion located in the middle of the plate-shaped electrode, and two ends of the metal fixing strip are respectively connected to two side edges of the hollow portion.

[0010] In some embodiments, the discharge electrode and the damper are located above or on the side of the storage assembly.

[0011] In a second aspect, an embodiment of the present application provides an electric field control method of an electric field fresh-keeping device, which is applied to the electric field fresh-keeping device as described in the first aspect; the electric field control method comprises: Detecting the switch state of the damper; If the damper is in an open state, the power supply is controlled to apply a first voltage to the discharge electrode; if the damper is in a closed state, the power supply is controlled to apply a second voltage to the discharge electrode; wherein the first voltage is greater than a threshold voltage required to cause tip ionization discharge at the needle-shaped electrode, and the second voltage is less than a threshold voltage required to cause tip ionization discharge at the needle-shaped electrode.

[0012] In some embodiments, the detecting the switch state of the damper includes: Detecting whether food is placed in the storage space of the storage component, and detecting the switch state of the storage component; In response to detecting that food is put into the storage space of the storage component and the storage component is closed, the switch state of the air door is detected.

[0013] In a third aspect, an embodiment of the present application provides a controller comprising at least one processor and a memory for communicating with the at least one processor; the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the electric field control method as described in the second aspect.

[0014] In a fourth aspect, an embodiment of the present application provides a refrigeration device, comprising the electric field preservation device as described in the first aspect or the controller as described in the third aspect.

[0015] The electric field preservation device, electric field control method, controller and refrigeration equipment of the embodiments of the present application have at least the following beneficial effects: the electric field component of the electric field preservation device integrates a conductively connected plate electrode and a needle electrode, the plate electrode is used to provide an electric field for food preservation, and the needle electrode is used to provide charged particles generated by ionization. During the food preservation process, when the damper is closed, the power supply is controlled to apply a second voltage to the plate electrode and the needle electrode, and the plate electrode provides an electric field to preserve the food, but the second voltage does not reach the threshold voltage for discharge at the tip of the needle electrode. At this time, there is only an electric field preservation function, and when the damper is opened Under this circumstance, the power supply is controlled to apply a first voltage to the plate electrode and the needle electrode, the plate electrode provides an electric field to preserve the food, and at the same time the tip of the needle electrode discharges to ionize the air to generate charged particles, which, under the action of the air supply of the damper, quickly reach the food in the storage component to achieve functions such as sterilization and deodorization. At this time, it has the functions of electric field preservation and ionization sterilization. Therefore, the electric field preservation device of the embodiment of the present application can achieve electric field preservation and ionization sterilization through an electric field component, and accelerate the movement of charged particles in combination with the opening of the damper, thereby enhancing the sterilization effect of the charged particles, thereby achieving the effects of preservation, sterilization and deodorization.

[0016] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of an electric field fresh-keeping device provided in one embodiment of the present application; Figure 2 A schematic diagram of the structure of a needle-shaped electrode provided in one embodiment of the present application; Figure 3 An overall flow chart of an electric field control method provided in one embodiment of the present application; Figure 4 A flow chart for detecting the switch status of a damper provided in one embodiment of the present application; Figure 5 A flow chart of an electric field control method provided for an example of the present application; Figure 6 A schematic diagram of the connection structure of a controller provided in one embodiment of the present application.

[0018] Figure Number: Storage component 100 , electric field component 200 , plate electrode 210 , needle electrode 220 , power supply 230 , opening 240 , metal fixing strip 250 , carbon fiber bundle 260 , controller 1000 , processor 1001 , memory 1002 . DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. In addition, the characteristics, operations or features described in the specification can be combined in any appropriate manner to form various implementation methods. At the same time, the steps or actions in the method description can also be replaced or adjusted in order in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the accompanying drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a necessary sequence, unless otherwise specified that a certain sequence must be followed.

[0020] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0022] Different forms of electric fields can have different effects on food. For example, the electric field generated between two electrode plates mainly provides electric field energy for preservation. The electric field preservation function is to apply an electric field to food (such as meat), which can regulate the formation of hydrogen bonds of water molecules, enzyme structure and activity, and physiological and biochemical activities of microbial reproduction, thereby regulating the preservation state of meat. For another example, needle-shaped electrodes mainly provide ionized charged particles, which act on the surface of food to sterilize. However, the effective survival time of charged particles is short and they are quenched before reaching the food. For example, the quenching time of superoxide anions is 10 -9 s~10 -6 s, and quickly loses its effectiveness, often failing to achieve effective sterilization effects. Therefore, in the related art, although there are schemes for sterilizing the air using ionized charged particles, there is no scheme for sterilizing the food in the refrigerator using ionized charged particles. Instead, methods such as ultraviolet components and photocatalyst components are used for sterilization, which increases the complexity and cost of the refrigerator.

[0023] Based on this, the embodiments of the present application provide an electric field preservation device, an electric field control method, a controller and a refrigeration device. The electric field component of the electric field preservation device integrates a conductively connected plate electrode and a needle electrode. The plate electrode is used to provide an electric field for preserving food, and the needle electrode is used to provide charged particles generated by ionization. In the process of preserving food, when the damper is closed, the power supply is controlled to apply a second voltage to the plate electrode and the needle electrode. The plate electrode provides an electric field to preserve the food, but the second voltage does not reach the threshold voltage of the discharge at the tip of the needle electrode. At this time, there is only an electric field preservation function. When the damper is open Under the control of the power supply, a first voltage is applied to the plate electrode and the needle electrode. The plate electrode provides an electric field to preserve the food. At the same time, the tip of the needle electrode discharges to ionize the air to generate charged particles. These charged particles quickly reach the food in the storage component under the action of the air supply of the damper, and achieve functions such as sterilization and deodorization. At this time, it has the functions of electric field preservation and ionization sterilization. Therefore, the electric field preservation device of the embodiment of the present application can achieve electric field preservation and ionization sterilization through an electric field component, and accelerate the movement of charged particles in combination with the opening of the damper, thereby enhancing the sterilization effect of the charged particles, thereby achieving the effects of preservation, sterilization and deodorization.

[0024] The electric field preservation device, electric field control method, controller and refrigeration equipment are described below in conjunction with the accompanying drawings.

[0025] Reference Figure 1 As shown, Figure 1 A schematic diagram of the structure of an electric field fresh-keeping device provided in an embodiment of the present application. The electric field fresh-keeping device is arranged in a refrigeration device, and the electric field fresh-keeping device comprises: A storage component 100, wherein the storage space of the storage component 100 is connected to the air supply channel of the refrigeration device through a damper; The electric field assembly 200 includes a discharge electrode and a power supply 230. The discharge electrode includes a plate electrode 210 and a needle electrode 220. The plate electrode 210 and the needle electrode 220 are conductively connected. The needle electrode 220 is located on the air outlet path of the air door. The controller controls the power supply 230 to apply a first voltage to the discharge electrode if the damper is in an open state, and controls the power supply 230 to apply a second voltage to the discharge electrode if the damper is in a closed state; wherein the first voltage is greater than a threshold voltage required for the needle-shaped electrode 220 to have a tip ionization discharge, and the second voltage is less than a threshold voltage required for the needle-shaped electrode 220 to have a tip ionization discharge.

[0026] The refrigeration equipment can be a refrigerator, a refrigerated display cabinet, a wine cabinet with refrigeration function, a medicine cabinet, etc., which provides refrigeration and preservation functions; the food that needs to be preserved is placed in the storage assembly 100, the storage assembly 100 is set in the refrigeration equipment, and the storage space inside the storage assembly 100 is connected to the air supply channel of the refrigeration equipment through the damper, and the air supply channel of the refrigeration equipment can be used to deliver cold air to the storage space inside the storage assembly 100. When working, the refrigeration equipment controls the opening and closing of the damper to control whether to deliver cold air to the storage space inside the storage assembly 100. For different food ingredients, the temperature of the preservation space of the storage assembly 100 is also different. For example, the preservation temperature of meat is within the slightly frozen temperature range, generally between -5°C and 0°C, and the preservation temperature of fruits and vegetables is within the refrigeration temperature range.

[0027] The electric field assembly 200 integrates a conductively connected plate electrode 210 and a needle electrode 220. When the power supply 230 supplies power to the discharge electrode, both the plate electrode 210 and the needle electrode 220 are charged. The power supply 230 of the embodiment of the present application can provide at least two working voltages, namely a first voltage greater than a threshold voltage and a second voltage less than a threshold voltage. The threshold voltage is the minimum voltage required for the needle electrode 220 to have a tip ionization discharge. Therefore, when the power supply 230 applies the first voltage, the plate electrode 210 provides an electric field while the needle electrode 220 ionizes the air and provides charged particles. When the power supply 230 applies the second voltage, the plate electrode 210 provides an electric field but the needle electrode 220 does not reach the voltage required for ionizing the air and does not provide charged particles. Based on the above-mentioned two-stage voltage control characteristics, the embodiment of the present application combines the opening and closing of the damper to adjust the fresh-keeping and sterilization functions.

[0028] Specifically, since the effective survival time of the charged particles generated by the needle-shaped electrode 220 ionizing the air is short, they may be quenched before they reach the food. For example, the quenching time of superoxide anions is 10 -9 s~10 -6 s, and fail quickly, often failing to achieve an effective sterilization effect. The embodiment of the present application utilizes the opportunity of the damper being opened, and the power supply 230 applies a first voltage, so that the charged particles generated by the ionized air of the needle-shaped electrode 220 can be accelerated with the cold air blown out of the damper to the location of the food, increasing the effective action time of the charged particles, and improving the sterilization effect of the charged particles to a certain extent; in addition, the charged particles can also combine with certain odor molecules, neutralize the odor molecules or form large molecular clusters to settle, and alleviate the odor. While the damper is closed, the power supply 230 can be controlled to apply a second voltage, and only the electric field capacity can be used to preserve the food in the storage component 100. Therefore, the electric field preservation device of the embodiment of the present application can improve the preservation effect in terms of preservation, sterilization, and deodorization.

[0029] It is understandable that the structure of the damper is set according to the structure of the storage component 100 and the refrigeration equipment. Generally speaking, it is sufficient to place the needle-shaped electrode 220 on the air outlet path of the damper, and use the cold wind to accelerate the charged particles to move to the location of the food. For example, the damper is facing the middle of the storage space of the storage component 100, and the cold wind blows directly into the storage space when the damper is open. The needle-shaped electrode 220 can be set in front of the air outlet of the damper. For another example, the air outlet of the damper is connected to the storage space of the storage component 100 through another curved air supply channel, and the cold wind does not blow directly into the storage space. The needle-shaped electrode 220 can be set at the outlet of the curved air supply channel, or in the curved air supply channel. In short, the position of the needle-shaped electrode 220 can be adjusted according to the structural design requirements of the storage component 100 and the refrigeration equipment.

[0030] Reference Figure 2 As shown, in some embodiments, the needle-shaped electrode 220 includes a metal fixing bar 250 and a plurality of carbon fiber bundles 260 . The carbon fiber bundles 260 are arranged at intervals on the metal fixing bar 250 , and the metal fixing bar 250 is connected to the plate-shaped electrode 210 .

[0031] The needle-shaped electrode 220 is in the form of a carbon brush electrode, the main body of which is a carbon fiber bundle 260, which is formed by bundling a plurality of carbon fiber filaments, and the discharge tip of the carbon fiber filament has a very small radius of curvature. The strength of the tip ionization discharge is related to the curvature of the needle tip. The smaller the radius of curvature, the stronger the discharge. Therefore, thanks to the radius of curvature of the carbon fiber filament, a strong discharge can be formed at the tip of each carbon fiber filament. Under the same voltage, a stronger discharge effect can be formed compared to ordinary tip discharge materials, more charged particles can be generated, and the sterilization effect can be significantly improved. In order to fix a plurality of carbon fiber bundles 260, a metal fixing bar 250 is provided, and the metal fixing bar 250 is connected to the plate-shaped electrode 210, and the two are conductively connected, and the voltage of the power supply 230 is applied to all the carbon fiber bundles 260 arranged on the metal fixing bar 250. The metal fixing bar 250 can be made of conductive metals such as copper wire and stainless steel wire.

[0032] It is understandable that the carbon fiber bundle 260 may be pre-bundled into a whole through an outer shell, and the metal fixing bar 250 fixes the carbon fiber bundle 260 on the metal fixing bar 250 by connecting the outer shell; the metal fixing bar 250 may also be provided with a bundling structure, and multiple carbon fiber filaments are manually fixed in the bundling structure to form a carbon fiber bundle 260.

[0033] In some embodiments, the needle electrode 220 includes a plurality of metal fixing bars 250 , and the plurality of metal fixing bars 250 are arranged parallel to each other.

[0034] In order to improve the efficiency of generating the number of charged particles, a plurality of metal fixing bars 250 are provided and a plurality of carbon fiber bundles 260 are arranged on each metal fixing bar 250. The carbon fiber bundles 260 on the metal fixing bar 250 have the same potential, and ionize the gas, water vapor, etc. in the air according to the applied first voltage to form charged positive and negative ions, water negative ions, etc. The parallel arrangement of the plurality of metal fixing bars 250 can avoid the ionization effect being affected by the close spacing of two carbon fiber bundles 260.

[0035] It is understandable that the arrangement of the carbon fiber bundles 260 should not be too dense or too sparse, so as to prevent the neutralization of positive and negative particles in adjacent carbon fiber bundles 260 due to too dense arrangement, thereby reducing the number of effective particles, and to prevent the generation of insufficient number of charged particles due to too sparse arrangement.

[0036] In some embodiments, the plate electrode 210 is provided with an opening 240 , which is opposite to the air outlet of the damper, the needle electrode 220 is disposed at the opening 240 , and at least one end of the metal fixing strip 250 is connected to the edge of the opening 240 .

[0037] Compared with the common, complete plate-shaped electrode 210, the plate-shaped electrode 210 of this embodiment is provided with an opening 240 for connecting the needle-shaped electrode 220, so that the plate-shaped electrode 210 is not a complete rectangular or circular shape, and the opening 240 corresponds to the air outlet position of the damper, so that the needle-shaped electrode 220 also corresponds to the air outlet position of the damper. There is no special limitation on the shape of the opening 240, as long as the needle-shaped electrode 220 can be fixed. The position of the opening 240 can be set at the edge of the plate-shaped electrode 210, or at the central part of the plate-shaped electrode 210. For example, the shape of the opening 240 is a long strip-shaped gap extending from the edge of the plate-shaped electrode 210 to the central part of the plate-shaped electrode 210. For another example, the shape of the opening 240 is a rectangle and is located in the center of the plate-shaped electrode 210. Specifically, refer to Figure 1 As shown, the opening 240 is a hollow portion located in the middle of the plate-shaped electrode 210 , and two ends of the metal fixing strip 250 are respectively connected to two side edges of the hollow portion.

[0038] In some embodiments, the discharge electrode and the air door are located above or on the side of the storage assembly 100. Figure 1 As shown, the storage component 100 is a fresh-keeping drawer, the discharge electrode and the damper are located above the fresh-keeping drawer, and a drawer structure with top air supply is adopted, so as to generate an electric field and blow out charged particles downward; for the design in which the air outlet of the air supply channel is located on the side of the fresh-keeping drawer, the discharge electrode and the damper can also be set on the side or back of the fresh-keeping drawer.

[0039] Reference Figure 3As shown, the embodiment of the present application also provides an electric field control method, which is applied to the electric field preservation device of any of the above embodiments. The electric field control method includes but is not limited to the following steps: Step S110, detecting the switch state of the damper; Step S120, if the damper is in an open state, control the power supply 230 to apply a first voltage to the discharge electrode, and if the damper is in a closed state, control the power supply 230 to apply a second voltage to the discharge electrode; wherein the first voltage is greater than a threshold voltage required for the needle-shaped electrode 220 to have a tip ionization discharge, and the second voltage is less than a threshold voltage required for the needle-shaped electrode 220 to have a tip ionization discharge.

[0040] When the power supply 230 applies the first voltage, the plate electrode 210 provides an electric field while the needle electrode 220 ionizes the air and provides charged particles. At the same time, combined with the characteristics of the air door opening to supply air, the cold air accelerates the charged particles to reach the surface of the food, combines with the cell wall of the bacteria, etc., destroys the DNA structure of the bacteria, disrupts the normal physiological activities of the bacteria, and prevents the bacteria from further growing and reproducing. At the same time, the charged particles can also combine with certain odor molecules, neutralize the odor molecules or form large molecular clusters to settle and alleviate the odor. In this process, through the joint control of the preservation temperature and the air door, the role of the needle tip electrode can be maximized to improve the preservation effect from the aspects of preservation, sterilization, and deodorization. When the power supply 230 applies the second voltage, the plate electrode 210 provides an electric field but the needle electrode 220 does not reach the voltage required for ionizing the air, and does not provide charged particles. At this time, the inside of the storage drawer is in an electric field preservation environment.

[0041] Reference Figure 4 As shown, in some embodiments, detecting the switch state of the damper in the above step S110 includes: Step S210, detecting whether food is placed in the storage space of the storage component 100, and detecting the switch state of the storage component 100; Step S220, in response to detecting that food is put into the storage space of the storage component 100 and the storage component 100 is closed, detecting the switch state of the air door.

[0042] The refrigeration device is provided with a sensor to detect whether food is placed in the storage component 100. If food is not placed in the storage component 100, the power supply 230 does not need to be started; if the refrigeration device detects that food is placed in the storage component 100 and the storage component 100 is closed, it can determine how to control the power supply 230 to supply power according to the current state of the damper. For example, if the storage component 100 is a fresh-keeping drawer, when it is detected that food is placed in the fresh-keeping drawer and the fresh-keeping drawer is closed, it can determine whether the power supply 230 applies the first voltage or the second voltage according to the current state of the damper.

[0043] In summary, in the process of food preservation, when the damper is closed, the power supply 230 is controlled to apply the second voltage to the plate electrode 210 and the needle electrode 220, and the plate electrode 210 provides an electric field to preserve the food, but the second voltage does not reach the threshold voltage of the discharge at the tip of the needle electrode 220, and only the electric field preservation function is available at this time. When the damper is opened, the power supply 230 is controlled to apply the first voltage to the plate electrode 210 and the needle electrode 220, and the plate electrode 210 provides an electric field to preserve the food. Fresh, at the same time, the tip of the needle-shaped electrode 220 discharges and ionizes the air to generate charged particles, which, under the action of the air supply of the damper, quickly reach the food in the storage component 100 to achieve functions such as sterilization and deodorization. At this time, it has the functions of electric field preservation and ionization sterilization. Therefore, the electric field preservation device of the embodiment of the present application can achieve electric field preservation and ionization sterilization through an electric field component 200, and accelerate the movement of charged particles in combination with the opening of the damper, thereby enhancing the sterilization effect of the charged particles, thereby achieving the effects of preservation, sterilization and deodorization.

[0044] The electric field preservation device and the electric field control method of the present application are described in detail below through a specific example.

[0045] Reference Figure 1 and Figure 5 As shown, the electric field preservation device is a meat preservation drawer, which adopts a drawer structure with top air supply. A plate electrode 210 and a carbon brush electrode (corresponding to the aforementioned needle electrode 220) are arranged above the meat preservation drawer. The center of the plate electrode 210 is hollowed out, and the hollow part is opposite to the air outlet of the top air supply damper. A plurality of carbon brush electrodes are fixed at the hollow part by conductive metal strips such as copper wire and stainless steel wire. Each carbon brush electrode is composed of a plurality of carbon fiber filaments. The tip curvature radius of the carbon fiber filament is extremely small, which can form a strong discharge. Therefore, the carbon brush electrode can form a stronger discharge effect under the same voltage application, and the number of charged particles formed is more abundant, which has a more significant sterilization effect.

[0046] During the storage process of meat, due to the change of freshness, microorganisms may breed and produce odor. The electrode structure of this example can, on the one hand, regulate the movement of water molecules during the storage of meat through the field effect of the electric field, extend the shelf life, and reduce the loss of juice during the storage process; on the other hand, the charged particles generated by the carbon brush electrode, under the impetus of the air door opening, make the charged particles reach the surface of the meat, combine with the cell wall of the bacteria, destroy the bacterial DNA structure, disrupt the normal physiological activities of the bacteria, and prevent the bacteria from further growth and reproduction. At the same time, the charged particles can also combine with certain odor molecules, neutralize the odor molecules or form large molecular clusters to settle, and alleviate the odor.

[0047] The specific control methods are as follows: When the damper corresponding to the meat preservation drawer is opened, the temperature in the drawer drops, and the movement of odor molecules is slow. At this time, the output voltage of the power supply 230 is adjusted to the first voltage, which can meet the current air at the tip of the carbon brush electrode to form a large number of charged particles. On the one hand, these charged particles quickly reach the surface of the food for sterilization under the acceleration of the wind. On the other hand, due to the circulation of air by the wind, possible odor molecules are combined with the charged particles to achieve the effect of sedimentation and neutralization, thereby removing the odor. When the damper corresponding to the meat preservation drawer is closed, the output voltage of the power supply 230 is adjusted to a second voltage. This voltage cannot ionize the air at the tip of the carbon brush electrode. Therefore, the carbon brush electrode and the plate electrode 210 jointly regulate the movement of water molecules in the food through field action to achieve a preservation effect.

[0048] like Figure 6 As shown, Figure 6 is a schematic diagram of a controller 1000 provided in one embodiment of the present application.

[0049] The controller 1000 of the embodiment of the present application includes one or more processors 1001 and a memory 1002. Figure 6 In the figure, a processor 1001 and a memory 1002 are taken as an example.

[0050] The processor 1001 and the memory 1002 may be connected via a bus or other means. Figure 6 The example of connecting through bus is taken in the following.

[0051] The memory 1002, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer executable programs. In addition, the memory 1002 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one disk storage device, a flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 1002 may optionally include a memory 1002 remotely arranged relative to the processor 1001, and these remote memories may be connected to the controller 1000 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0052] Those skilled in the art will understand that Figure 6 The device structure shown in the figure does not constitute a limitation on the controller 1000, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0053] The embodiment of the present application also provides a refrigeration device, including the aforementioned controller 1000.

[0054] The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separated, that is, they may be located in one place or distributed on multiple network nodes. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0055] It will be appreciated by those skilled in the art that all or some of the steps and systems in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or transient medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and can be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0056] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0057] In several embodiments provided in the present application, it should be understood that the disclosed systems, apparatuses and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of apparatuses or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0058] It should also be understood that the various implementations provided in the embodiments of the present application can be combined arbitrarily to achieve different technical effects.

[0059] The above is a specific description of the preferred implementation of the present application, but the present application is not limited to the above-mentioned implementation mode. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the present application. These equivalent deformations or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. Electric field fresh-keeping device, characterized in that: The electric field fresh-keeping device is arranged on a refrigeration device, and the electric field fresh-keeping device comprises: A storage component, wherein the storage space of the storage component is connected to the air supply channel of the refrigeration device through a damper; An electric field component, comprising a discharge electrode and a power supply, wherein the discharge electrode comprises a plate electrode and a needle electrode, wherein the plate electrode and the needle electrode are conductively connected, and the needle electrode is located on an air outlet path of the damper; The controller controls the power supply to apply a first voltage to the discharge electrode if the damper is in an open state, and controls the power supply to apply a second voltage to the discharge electrode if the damper is in a closed state; wherein the first voltage is greater than a threshold voltage required to cause the needle-shaped electrode to have a tip ionization discharge, and the second voltage is less than a threshold voltage required to cause the needle-shaped electrode to have a tip ionization discharge.

2. The electric field fresh-keeping device according to claim 1, characterized in that: The needle-shaped electrode includes a metal fixing bar and a plurality of carbon fiber bundles, wherein the carbon fiber bundles are arranged at intervals on the metal fixing bar, and the metal fixing bar is connected to the plate-shaped electrode.

3. The electric field fresh-keeping device according to claim 2, characterized in that: The needle-shaped electrode includes a plurality of metal fixing strips, and the plurality of metal fixing strips are arranged parallel to each other.

4. The electric field fresh-keeping device according to claim 3, characterized in that: The plate-shaped electrode is provided with an opening, the opening is opposite to the air outlet of the damper, the needle-shaped electrode is arranged at the opening, and at least one end of the metal fixing strip is connected to the edge of the opening.

5. The electric field fresh-keeping device according to claim 4, characterized in that: The opening is a hollow portion located in the middle of the plate-shaped electrode, and two ends of the metal fixing strip are respectively connected to two side edges of the hollow portion.

6. The electric field fresh-keeping device according to claim 1, characterized in that: The discharge electrode and the air door are located above or on the side of the storage component.

7. An electric field control method, characterized in that: Applicable to the electric field fresh-keeping device as claimed in any one of claims 1 to 6; The electric field control method comprises: Detecting the switch state of the damper; If the damper is in an open state, the power supply is controlled to apply a first voltage to the discharge electrode; if the damper is in a closed state, the power supply is controlled to apply a second voltage to the discharge electrode; wherein the first voltage is greater than a threshold voltage required to cause tip ionization discharge at the needle-shaped electrode, and the second voltage is less than a threshold voltage required to cause tip ionization discharge at the needle-shaped electrode.

8. The electric field control method according to claim 7, characterized in that: The detecting the switch state of the damper comprises: Detecting whether food is placed in the storage space of the storage component, and detecting the switch state of the storage component; In response to detecting that food is put into the storage space of the storage component and the storage component is closed, the switch state of the air door is detected.

9. A controller, characterized in that: It comprises at least one processor and a memory for communicating with the at least one processor; the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the electric field control method as described in claim 7 or 8.

10. A refrigeration device, comprising the electric field fresh-keeping device according to any one of claims 1 to 6 or the controller according to claim 9.

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