Food material preservation detection method and device and refrigeration equipment

Abstract

The invention provides a food material preservation detection method and device and refrigeration equipment. The method is used for detecting the food material fresh-keeping device. The food material fresh-keeping device comprises a first assembly and a second assembly, the first indicator lamp is arranged in the range of the magnetic field generated by the first assembly and fixed to the storage unit, the storage unit is used for storing food materials, and the first end of the first indicator lamp is coupled to the second end of the first indicator lamp; the detection module is coupled with the first assembly and used for implementing the detection method, and the detection method comprises the steps that the first assembly is controlled to output a pulsed magnetic field; when the food materials at the storage unit are not kept fresh, the first indicator lamp is turned off; and when the food materials at the storage unit are preserved, the first indicator light is turned on. According to the method, the fresh-keeping state of the food materials is rapidly judged through on and off of the indicator lamp, the visual perception of a user on the working state of the food material fresh-keeping device is enhanced, and the use convenience and efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the field of household appliances, and particularly to a method and device for detecting food preservation and a refrigeration device. Background Art

[0002] In the current field of food preservation detection technology, traditional detection methods mostly rely on manually observing intuitive features such as the appearance and smell of food, or evaluating the freshness of food through chemical analysis. These methods are not only time-consuming and laborious, but also often difficult to provide accurate and immediate information on the preservation status. In addition, although some advanced food preservation devices adopt automated monitoring technology, they are usually limited to monitoring environmental parameters such as temperature and humidity, and have not deeply explored the potential impact of physical factors such as magnetic fields on the food preservation effect.

[0003] However, these preservation detection methods in the prior art have obvious deficiencies. First, the method of manual observation is highly subjective and easily affected by personal experience and judgment, resulting in inaccurate evaluation of the preservation status. Second, although chemical analysis methods are precise, they are complex to operate and costly, and are not suitable for daily rapid detection. Third, even some automated monitoring devices often lack direct detection means for the magnetic field preservation effect and cannot comprehensively reflect the true preservation status of food. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a method for detecting food preservation to solve the technical problem in the prior art that there is a lack of an intuitive feedback mechanism, resulting in users being unable to directly perceive the working state of the food preservation device.

[0005] To achieve one of the above-mentioned purposes of the present invention, the present invention provides a method for detecting food preservation for detecting a food preservation device, the food preservation device including: a first component; a first indicator light disposed within the magnetic field range generated by the first component and fixed to a storage unit for placing food, with the first end of the first indicator light coupled to its second end; a detection module coupled to the first component for implementing the detection method, the detection method including: controlling the first component to output a pulsed magnetic field; when the food in the storage unit is not preserved, the first indicator light is turned off; when the food in the storage unit is preserved, the first indicator light is turned on.

[0006] As a further improvement of an embodiment of the present invention, the controlling the first component to output a pulsed magnetic field includes: controlling a power supply to provide a pulsed current to the first component, and generating a pulsed magnetic field based on the pulsed current.

[0007] As a further improvement of an embodiment of the present invention, the first component includes a first electromagnetic coil and a second electromagnetic coil, the storage unit is disposed between the first electromagnetic coil and the second electromagnetic coil, and controlling the first component to output a pulsed magnetic field includes: controlling a power supply to simultaneously supply pulsed currents of the same magnitude and / or direction to the first electromagnetic coil and the second electromagnetic coil.

[0008] As a further improvement of an embodiment of the present invention, the method further includes: when the first indicator light is on, obtaining the brightness information output by the first indicator light; determining the intensity of the pulsed magnetic field according to the brightness information, and the intensity of the pulsed magnetic field is positively correlated with the brightness information of the first indicator light.

[0009] As a further improvement of an embodiment of the present invention, obtaining the brightness information output by the first indicator light includes: when controlling the first component to output a first pulsed magnetic field and the first indicator light is on, obtaining a first brightness value output by the first indicator light; when controlling the first component to output a second pulsed magnetic field and the first indicator light is on, obtaining a second brightness value output by the first indicator light; determining the intensity of the pulsed magnetic field according to the brightness information includes: when the intensity of the first pulsed magnetic field is greater than the intensity of the second pulsed magnetic field, the first brightness value is higher than the second brightness value; when the intensity of the first pulsed magnetic field is less than the intensity of the second pulsed magnetic field, the first brightness value is lower than the second brightness value.

[0010] As a further improvement of an embodiment of the present invention, the food preservation device further includes an energy storage device, a first end of the energy storage device is connected to a first end of the first indicator light, and a second end of the energy storage device is connected to a second end of the first indicator light; after controlling the first component to output a pulsed magnetic field, the method further includes: the energy storage device obtains an induced current and stores it, and simultaneously controls the energy storage device to supply the induced current to the first indicator light.

[0011] To achieve one of the above-mentioned invention purposes, the present invention provides a food preservation device, including: a first component for generating a pulsed magnetic field; a first indicator light disposed within the range of the pulsed magnetic field and fixed at the storage unit, the storage unit being used for placing food, a first end of the first indicator light being coupled to its second end; when the food at the storage unit is not preserved, the first indicator light is off; when the food at the storage unit is preserved, the first indicator light is on.

[0012] As a further improvement of an embodiment of the present invention, the first component includes a first electromagnetic coil and a second electromagnetic coil, and the storage unit is disposed between the first electromagnetic coil and the second electromagnetic coil.

[0013] As a further improvement of an embodiment of the present invention, the first electromagnetic coil is disposed above the second electromagnetic coil, and the distance between the object placing unit and the first electromagnetic coil is equal to the distance between the object placing unit and the second electromagnetic coil.

[0014] To achieve one of the above-mentioned invention purposes, the present invention provides a refrigeration device, including a refrigerating compartment, in which any one of the above-mentioned food freshness preservation devices is disposed, and the food freshness preservation device executes any one of the food freshness detection methods in the claims.

[0015] Compared with the prior art, the embodiments of the present invention have at least one of the following beneficial effects:

[0016] The present invention discloses a food freshness detection method, which controls the first component of the food freshness preservation device to output a pulsed magnetic field and controls the lighting and extinguishing of the first indicator lamp according to the food freshness state. In this way, the user can quickly judge the food freshness state through the lighting and extinguishing of the indicator lamp without directly checking the food, enhancing the user's intuitive perception of the working state of the food freshness preservation device and improving the convenience and efficiency of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a refrigeration device in an embodiment of the present invention.

[0018] FIG. 2(a) is a schematic structural diagram of a food freshness preservation device in an embodiment of the present invention.

[0019] FIG. 2(b) is a schematic structural diagram of a food freshness preservation device in another embodiment of the present invention.

[0020] Figure 3 is a schematic structural diagram of a freshness preservation drawer in an embodiment of the present invention.

[0021] Figure 4 is a schematic diagram of the steps of a food freshness detection method in an embodiment of the present invention.

[0022] Figure 5 is a schematic diagram of the steps after step S3 in an embodiment of the present invention.

[0023] Figure 6 is a schematic diagram of the steps of step S41 and step S42 in a specific embodiment in an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present invention will be described in detail below with reference to the specific embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional transformation made by those of ordinary skill in the art based on these embodiments is included in the protection scope of the present invention.

[0025] Spatial relative position terms used herein, such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are for the purpose of facilitating description to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The spatial relative position terms may be intended to include different orientations of the device in use or operation other than the orientations shown in the figures.

[0026] For example, if the device in the figure is flipped, the unit described as being "below" or "beneath" other units or features will be located "above" other units or features. Thus, the exemplary term "below" can encompass both the upper and lower orientations. The device may be oriented in other ways (rotated 90 degrees or other orientations), and the spatially related descriptive terms used herein are interpreted accordingly.

[0027] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0028] It should be noted that the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or device. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0029] As Figure 1 shown, an embodiment of the present invention provides a refrigeration device 200.

[0030] The refrigeration device 200 may specifically be a computer device, and the computer device may be a terminal device or a server.

[0031] The refrigeration device 200 includes at least one processor. The food freshness detection method provided by the present invention may be applied to or implemented by the processor. The processor may specifically be a central processing unit (CPU) 21.

[0032] The refrigeration device 200 includes a memory. The memory is used to store various types of data to support the operation of the refrigeration device 200. Examples of such data include: any computer program for operating on a computer device. The memory may be a Read-Only Memory (ROM) 22, a Random Access Memory (RAM) 23, or other storage part 28. The storage part 28 may be located inside the refrigeration device 200 or outside the refrigeration device 200.

[0033] In one embodiment, when the processor executes the computer program stored in the memory, the steps of the food preservation detection method in any technical solution of the present invention are executed.

[0034] In one embodiment, the refrigeration device 200 includes a central processing unit 21, which can perform various appropriate actions and processes according to the program stored in the read-only memory 22 or the program loaded from the storage part 28 into the random access memory 23. In the random access memory 23, various programs and data required for system operation are also stored. The central processing unit 21, the read-only memory 22, and the random access memory 23 are connected to each other through a bus 24. An Input / Output interface (I / O interface) 25 is also connected to the bus 24.

[0035] The following components are connected to the input / output interface 25: an input part 26 including a keyboard, a mouse, etc.; an output part 27 including, for example, a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), etc. and a speaker, etc.; a storage part 28 including a hard disk, etc.; and a communication part 29 including a network interface card such as a local area network card, a modem, etc. The communication part 29 performs communication processing via a network such as the Internet. A drive 210 is also connected to the input / output interface 25 as needed. A removable medium 211, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 210 as needed so that the computer program read from it can be installed into the storage part 28 as needed.

[0036] An embodiment of the present invention provides a food preservation device 100.

[0037] As shown in FIG. 2(a), the food preservation device 100 includes a first component for generating a first magnetic field. On the one hand, the first magnetic field is used to preserve the food inside the food preservation device 100. On the other hand, the first magnetic field marks whether the food at the storage unit 14 is in an effective preservation state by affecting the first indicator light 13.

[0038] In one embodiment, the first component includes a first electromagnetic coil 11 and a second electromagnetic coil 12, and the storage unit 14 is disposed between the first electromagnetic coil 11 and the second electromagnetic coil 12.

[0039] In this embodiment, the first magnetic field is jointly generated by the first electromagnetic coil 11 and the second electromagnetic coil 12. The first magnetic field is generated by energizing the first electromagnetic coil 11 and the second electromagnetic coil 12.

[0040] In a specific embodiment, the first electromagnetic coil 11 is disposed above the second electromagnetic coil 12, and the distance between the storage unit 14 and the first electromagnetic coil 12 is equal to the distance between the storage unit 14 and the second electromagnetic coil 12.

[0041] Thus, this up-and-down symmetric layout helps to form a uniform and stable magnetic field environment within the storage unit 14. The equal-distance setting ensures the consistency of the magnetic field effect on each part of the food ingredients, avoiding differences in the preservation effect caused by uneven magnetic field distribution.

[0042] For example, the storage unit 14 is taken as a fresh-keeping drawer. The first electromagnetic coil 11 and the second electromagnetic coil 12 are respectively disposed at the upper and lower positions of the fresh-keeping drawer. Specifically, the first electromagnetic coil 11 can be disposed above the fresh-keeping drawer, close to the top of the fresh-keeping drawer or a certain fixed position above; the second electromagnetic coil 12 is correspondingly disposed below the fresh-keeping drawer, close to the bottom of the fresh-keeping drawer or a certain fixed position below.

[0043] In this setting, when pulsed current is simultaneously supplied to the first electromagnetic coil 11 and the second electromagnetic coil 12, a pulsed magnetic field from top to bottom or from bottom to top will be generated within the fresh-keeping drawer, and an induced current will be generated in the closed loop under the action of this pulsed magnetic field.

[0044] Of course, the first electromagnetic coil 11 and the second electromagnetic coil 12 can also be respectively disposed on both sides of the fresh-keeping drawer. Specifically, the first electromagnetic coil 11 can be disposed on one side of the fresh-keeping drawer, such as the left side; the second electromagnetic coil 12 is disposed on the other side of the drawer, that is, the right side.

[0045] In this setting, when pulsed current is simultaneously supplied to the first electromagnetic coil 11 and the second electromagnetic coil 12, a pulsed magnetic field from left to right or from right to left will be generated within the fresh-keeping drawer, and an induced current will be generated in the closed loop under the action of this pulsed magnetic field.

[0046] In other embodiments, the first electromagnetic coil 11 and the second electromagnetic coil 12 may also be disposed on the left and right sides of the storage unit 14, and the distance between the storage unit 14 and the first electromagnetic coil 11 is equal to the distance between the storage unit 14 and the second electromagnetic coil 12.

[0047] The food preservation device 100 includes a first indicator light 13, and the first indicator light 13 is fixed at the storage unit 14. The first end of the first indicator light 13 is coupled to its second end to form a closed loop. The first indicator light 13 is disposed within the range of the pulsed magnetic field output by the first component, and is used to sense the pulsed magnetic field and generate an induced current.

[0048] In one embodiment, the food preservation device 100 may further include at least one of a rigid wire and a circuit module.

[0049] In a specific embodiment, the first end of the first indicator light 13 is connected to the first end of the rigid wire, and the second end of the first indicator light 13 is connected to the second end of the rigid wire. In this embodiment, the closed loop is formed by the mutual connection of the first indicator light 13 and the rigid wire.

[0050] In another specific embodiment, the first end of the first indicator light 13 is connected to the first end of the circuit module, and the second end of the first indicator light 13 is connected to the second end of the circuit module. In this embodiment, the closed loop is formed by the mutual connection of the first indicator light 13 and the circuit module.

[0051] In yet another specific embodiment, the first end of the first indicator light 13 is connected to the first end of the rigid wire, the second end of the rigid wire is connected to the first end of the circuit module, and the second end of the circuit module is connected to the second end of the first indicator light 13. In this embodiment, the closed loop is formed by the mutual connection of the first indicator light 13, the rigid wire, and the circuit module in pairs.

[0052] For example, the storage unit 14 is taken as a fresh-keeping drawer. As Figure 3 shown, the fresh-keeping drawer 300 includes a drawer body 31 for placing food; a drawer decorative member 32 disposed on the periphery of the drawer body 31 for providing additional functions (for example, for fixing the first indicator light); a drawer front cover 34 disposed at the front end of the drawer body 31 for opening or closing the drawer; and a drawer frame 33 fixed around the drawer body 31 for protecting the internal structure of the drawer.

[0053] In this embodiment, the front cover 34 of the drawer, the drawer frame 33, and the drawer decorative member 32 are assembled with the drawer body 31. The first electromagnetic coil 11 and the second electromagnetic coil 12 are respectively arranged at the upper and lower positions of the fresh-keeping drawer 300. Specifically, the first electromagnetic coil 11 can be arranged above the drawer body 31, close to the top of the fresh-keeping drawer 300 or a certain fixed position above; the second, as Figure 3 shown, 12 is correspondingly arranged below the drawer body 31, close to the bottom of the fresh-keeping drawer 300 or a certain fixed position below.

[0054] Continue to refer to Figure 3 shown, the rigid wire 37 is arranged around the periphery of the drawer body 31. The first end of the rigid wire 37 is connected to the first end of the circuit module 36, and the second end of the rigid wire 37 is connected to the second end of the circuit module 36 to form a closed loop. In addition, the first indicator light 13 is arranged on the circuit module 36.

[0055] As shown in Fig. 2(b), in one embodiment, the food freshness preservation device 100 further includes a voltage regulator 17. The first end of the voltage regulator 17 is connected to the first end of the first indicator light 13, and the second end of the voltage regulator 17 is connected to the second end of the first indicator light 13; when the storage unit 14 moves along the second direction, the voltage regulator 17 is used to stabilize the power supply voltage supplied to the first indicator light 13.

[0056] In this way, by introducing the voltage regulator 17, it is ensured that no matter how the pulsed current of the storage unit 14 changes, the first indicator light 13 can emit light with a constant brightness.

[0057] Continue to refer to Fig. 2(b). In one embodiment, the food freshness preservation device 100 further includes an energy storage device 15 and a voltage regulator 17. The first end of the energy storage device 15 is connected to the first end of the first indicator light 13, the second end of the energy storage device 15 is connected to the first end of the voltage regulator 17, and the second end of the voltage regulator 17 is connected to the second end of the first indicator light 13.

[0058] Continue to refer to Fig. 2(b). In one embodiment, a groove 16 is provided on the storage unit 14, and the first indicator light 13 is arranged in the groove 16.

[0059] In this way, by arranging the first indicator light 13 in the groove 16 of the storage unit 14, the first indicator light 13 is protected from external physical damage (such as collision, scratching, etc.), and the whole device is made more beautiful and tidy.

[0060] Continue to refer to Fig. 2(b). The food freshness preservation device 100 further includes a detection module 18, which is coupled to the first component, and the detection module 18 is used to implement a food freshness preservation detection method.

[0061] In a specific embodiment, the food preservation detection method can adopt the detection method described below.

[0062] As Figure 4 shown, in an embodiment of the present invention, a food preservation detection method is provided.

[0063] The food preservation detection method is applied to a food preservation device for detecting the food preservation device.

[0064] The food preservation device refers to a device or container specifically used for storing, preserving, and managing food. These devices can ensure that the food remains fresh, nutritious, and palatable during storage. The food preservation device can be a refrigerator, a cold storage cabinet, or a certain module in the refrigerator or cold storage cabinet, such as a fresh-keeping drawer, etc.

[0065] It should be noted that the preservation of food by magnetic fields is mainly reflected in that the magnetic fields can inhibit the growth of microorganisms and molds, thereby extending the storage period of food. Specifically, when using magnetic fields to assist in storing food, the magnetic fields limit the free path of water molecules to a certain extent. Specifically, the hydrogen bonds in the water molecule clusters are broken, so that during the phase change of water, the growth of crystal nuclei is inhibited, and the growth rate of ice crystals is higher than the migration rate of water molecules, resulting in smaller ice crystals, thereby causing less damage to cells and reducing the juice loss rate of food, so that the nutrition and taste of food can be better preserved. Therefore, magnetic fields can be used to assist in storing food, thereby achieving the purpose of extending the storage period of food.

[0066] In an embodiment, the food preservation device can be set as described above, and the corresponding technical solutions are incorporated into the detection method provided by the present invention.

[0067] As Figure 4 shown, an embodiment of the present invention provides a food preservation detection method, including the following steps.

[0068] Step S1, controlling the first component to output a pulsed magnetic field;

[0069] Step S2, when the food at the placement unit is not preserved, the first indicator light is turned off;

[0070] Step S3, when the food at the placement unit is preserved, the first indicator light is turned on.

[0071] In this way, by controlling the first component of the food preservation device to output a pulsed magnetic field and controlling the lighting and extinguishing of the first indicator light according to the food preservation state, in this way, users can quickly judge the food preservation state through the lighting and extinguishing of the indicator light without directly checking the food, enhancing the user's intuitive perception of the working state of the food preservation device and improving the convenience and efficiency of use.

[0072] In step S1, the pulsed magnetic field refers to the magnetic field generated by a pulsed current or a pulsed signal, and its magnetic field intensity and / or direction will change rapidly over time. Steps S2 to S3 mean converting the abstract concept of the food preservation state into a visual indication that users can directly observe, improving the user experience.

[0073] In one embodiment, step S1 may specifically include the following steps.

[0074] Step S1', control the power supply to provide a pulsed current to the first component, and generate a pulsed magnetic field based on the pulsed current.

[0075] In this way, by controlling the pulsed current provided by the power supply, these parameters can be precisely adjusted to meet the needs of different food preservation. In addition, the stable pulsed current can also ensure the continuity and uniformity of the pulsed magnetic field, thereby improving the consistency and reliability of the preservation effect.

[0076] In this embodiment, the pulsed current refers to a current or voltage pulse that repeats periodically, which appears either in the same direction or in a positive and negative alternating direction.

[0077] In a specific embodiment, when the first component includes a first electromagnetic coil and a second electromagnetic coil, and the placement unit is arranged between the first electromagnetic coil and the second electromagnetic coil, step S1 may specifically include the following steps.

[0078] Step S1", control the power supply to provide pulsed currents with the same magnitude and / or direction to the first electromagnetic coil and the second electromagnetic coil simultaneously.

[0079] In this way, by controlling the power supply to provide the same pulsed current to the first electromagnetic coil and the second electromagnetic coil simultaneously, a stable and uniformly intense superimposed magnetic field can be formed at the placement unit, thereby accelerating the preservation process and improving the preservation efficiency.

[0080] In a specific embodiment, the power supply is controlled to simultaneously supply pulsed currents of the same magnitude to the first electromagnetic coil and the second electromagnetic coil. In this embodiment, since the magnitudes of the currents in the first electromagnetic coil and the second electromagnetic coil are the same, the magnetic field intensities generated by them respectively will also be the same, which helps to form a uniformly distributed magnetic field between the two electromagnetic coils (i.e., the area where the storage unit is located), ensuring that the food ingredients are subjected to a uniform and stable magnetic field during the preservation process.

[0081] In another specific embodiment, the power supply is controlled to simultaneously supply pulsed currents of the same direction to the first electromagnetic coil and the second electromagnetic coil. In this embodiment, since the directions of the currents in the first electromagnetic coil and the second electromagnetic coil are the same, the magnetic field directions generated by them respectively will also be the same, which helps to form a magnetic field with a superposition in the same direction between the two electromagnetic coils, thereby enhancing the overall intensity of the magnetic field, accelerating the preservation process, and improving the preservation effect.

[0082] In other embodiments, the power supply is controlled to simultaneously supply pulsed currents of the same magnitude and the same direction to the first electromagnetic coil and the second electromagnetic coil. In this way, it helps to create a more uniform and symmetric magnetic field environment around the drawer, reducing magnetic field interference and measurement errors caused by uneven power supply or time differences.

[0083] In addition, the lighting and extinguishing of the first indicator light can not only characterize the preservation state of the food ingredients at the storage unit, but also characterize the strength of the magnetic field inside the food ingredient preservation device.

[0084] As Figure 5 shown, in one embodiment, after step S3, the detection method of the present invention may further include the following steps.

[0085] Step S41, when the first indicator light is on, obtain the brightness information output by the first indicator light;

[0086] Step S42, determine the strength level of the pulsed magnetic field according to the brightness information, and the strength level of the pulsed magnetic field is positively correlated with the brightness information of the first indicator light.

[0087] In this way, by observing the brightness change of the first indicator light, the user can intuitively understand the current strength state of the pulsed magnetic field, and then can adjust the output of the pulsed magnetic field according to this information to ensure that the food ingredients are stored under the best preservation conditions.

[0088] As Figure 6 shown, in a specific embodiment, step S41 may specifically include the following steps.

[0089] Step S411, when controlling the first component to output the first pulsed magnetic field and the first indicator light is on, obtain the first brightness value output by the first indicator light;

[0090] Step S412, when controlling the first component to output a second pulsed magnetic field and the first indicator light is lit, obtain the second brightness value output by the first indicator light;

[0091] Based on this, step S42 may specifically include the following steps.

[0092] Step S421, when the first pulsed magnetic field intensity is greater than the second pulsed magnetic field intensity, the first brightness value is higher than the second brightness value;

[0093] Step S422, when the first pulsed magnetic field intensity is less than the second pulsed magnetic field intensity, the first brightness value is lower than the second brightness value.

[0094] In this way, using the brightness value output by the first indicator light, the originally abstract pulsed magnetic field intensity is converted into an intuitive and visual form of expression. This conversion not only improves the intuitiveness and accuracy of judgment, but also helps users respond and adjust the magnetic field intensity more quickly.

[0095] In one embodiment, the food preservation device further includes an energy storage device, the first end of the energy storage device is connected to the first end of the first indicator light, and the second end of the energy storage device is connected to the second end of the first indicator light.

[0096] Based on this, after step S1, the method further includes: the energy storage device obtains an induced current and stores it, and at the same time controls the energy storage device to provide the induced current to the first indicator light.

[0097] In this way, by introducing an energy storage component, the food preservation device can effectively store the induced current when the first component outputs a pulsed magnetic field, and provide a stable current to the first indicator light when needed to keep it at a stable brightness.

[0098] To facilitate understanding the relationship between the food preservation state at the built-in object unit of the food preservation device and the extinguishing or lighting of the first indicator light. Taking Figure 3 the shown preservation drawer as an example for illustration, since the preservation drawer is arranged between the first electromagnetic coil and the second electromagnetic coil, when the user uses the preservation drawer, places the food in the drawer, and pushes it back to the initial position of the drawer, the magnetization function is started. At this time, the food storage device supplies power to the first electromagnetic coil and the second electromagnetic coil simultaneously, the magnitude and direction of the current are the same, and a pulsed power supply method is adopted to generate a pulsed magnetic field in the preservation drawer.

[0099] Under the action of the pulsed magnetic field, a closed loop formed by the first indicator light, the circuit module, and the rigid wire has a change in magnetic flux under the action of the pulsed magnetic field, thereby generating an induced current in the closed loop. The energy storage device in the circuit module stores and stabilizes the induced current to a certain extent and outputs a current to supply the first indicator light to make it light up. The user determines whether the food in the current fresh-keeping drawer is in a fresh-keeping state through the lighting state of the first indicator light.

[0100] When the user does not activate the magnetization function, the food storage device cuts off the power supply to the first electromagnetic coil and the second electromagnetic coil simultaneously, so that the first component cannot output a magnetic field. Since the closed loop formed by the first indicator light, the circuit module, and the rigid wire has no change in magnetic flux under the action of the pulsed magnetic field, no induced current is generated in the closed loop, and no current can be output to the first indicator light, and the first indicator light goes out. The user determines that the food in the current fresh-keeping drawer is not in a fresh-keeping state through the extinguished state of the first indicator light.

[0101] In summary, the present invention provides a food freshness detection method, device, and refrigeration equipment. By controlling the first component of the food freshness preservation device to output a pulsed magnetic field and controlling the lighting and extinguishing of the first indicator light according to the food freshness state, in this way, the user can quickly judge the freshness state of the food through the lighting and extinguishing of the indicator light without directly checking the food, enhancing the user's intuitive perception of the working state of the food freshness preservation device and improving the convenience and efficiency of use.

[0102] It should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0103] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Any equivalent embodiments or changes made without departing from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A food preservation detection method, characterized in that: Used to detect a food preservation device, the food preservation device comprising: First component; A first indicator light is disposed within the magnetic field generated by the first component and fixed to a storage unit, wherein the storage unit is used to place food, and a first end of the first indicator light is coupled to a second end thereof; A detection module, coupled to the first component, is used to implement the detection method, and the detection method includes: Controlling the first component to output a pulsed magnetic field; When the food in the storage unit is not fresh, the first indicator light goes out; When the food in the storage unit is kept fresh, the first indicator light is on.

2. The food preservation detection method according to claim 1, characterized in that: The controlling the first component to output a pulsed magnetic field comprises: The power supply is controlled to provide a pulse current to the first component, and a pulse magnetic field is generated based on the pulse current.

3. The food preservation detection method according to claim 1, characterized in that: The first component includes a first electromagnetic coil and a second electromagnetic coil, the placement unit is disposed between the first electromagnetic coil and the second electromagnetic coil, and the controlling the first component to output a pulsed magnetic field includes: The power supply is controlled to simultaneously provide pulse currents with the same magnitude and / or direction to the first electromagnetic coil and the second electromagnetic coil.

4. The food preservation detection method according to claim 1, characterized in that: The method further comprises: When the first indicator light is on, obtaining brightness information output by the first indicator light; The strength of the pulsed magnetic field is determined according to the brightness information, and the strength of the pulsed magnetic field is positively correlated with the brightness information of the first indicator light.

5. The food preservation detection method according to claim 4, characterized in that: The step of obtaining brightness information output by the first indicator light comprises: When the first component is controlled to output a first pulse magnetic field and the first indicator light is turned on, a first brightness value output by the first indicator light is obtained; When the first component is controlled to output a second pulsed magnetic field and the first indicator light is on, a second brightness value output by the first indicator light is obtained; Determining the intensity of the pulsed magnetic field according to the brightness information includes: When the first pulse magnetic field strength is greater than the second pulse magnetic field strength, the first brightness value is higher than the second brightness value; When the first pulse magnetic field strength is less than the second pulse magnetic field strength, the first brightness value is lower than the second brightness value.

6. The food preservation detection method according to claim 1, characterized in that: The food preservation device further includes an energy storage device, wherein a first end of the energy storage device is connected to a first end of the first indicator light, and a second end of the energy storage device is connected to a second end of the first indicator light; After controlling the first component to output the pulsed magnetic field, the method further includes: The energy storage device obtains the induced current and stores it, and at the same time controls the energy storage device to provide the induced current to the first indicator light.

7. A food preservation device, characterized in that: include: A first component is used to generate a pulsed magnetic field; A first indicator light is disposed within the range of the pulse magnetic field and fixed to a storage unit, wherein the storage unit is used to place food, and a first end of the first indicator light is coupled to a second end thereof; When the food in the storage unit is not fresh, the first indicator light goes out; When the food in the storage unit is kept fresh, the first indicator light is on.

8. The food preservation device according to claim 7, characterized in that: The first component includes a first electromagnetic coil and a second electromagnetic coil, and the storage unit is arranged between the first electromagnetic coil and the second electromagnetic coil.

9. The food preservation device according to claim 7, characterized in that: The first electromagnetic coil is arranged above the second electromagnetic coil, and the distance between the placement unit and the first electromagnetic coil is equal to the distance between the placement unit and the second electromagnetic coil.

10. A refrigeration device, characterized in that: It comprises a refrigeration compartment, in which the food preservation device according to any one of claims 7 to 9 is arranged, and the food preservation device executes the food preservation detection method according to any one of claims 1 to 6.

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