Refrigeration equipment, control method of refrigeration equipment and storage medium of refrigeration equipment

Abstract

The embodiment of the invention discloses refrigeration equipment, a control method of the refrigeration equipment and a storage medium of the refrigeration equipment. The refrigeration equipment comprises a fresh-keeping drawer located in a refrigerating chamber of the refrigeration equipment; the ultrasonic assembly is arranged at the bottom of the fresh-keeping drawer and used for emitting ultrasonic waves into the fresh-keeping drawer; the first temperature sensor is arranged in the fresh-keeping drawer and used for acquiring the first temperature of the fresh-keeping drawer; the second temperature sensor is arranged at the bottom of the fresh-keeping drawer and used for obtaining the second temperature of the ultrasonic assembly; the controller is used for starting the ultrasonic assembly when the first temperature and the second temperature are both smaller than the preset starting temperature under the condition that the air supply air door is opened. And when the first temperature is greater than or equal to the startup temperature and / or the second temperature is greater than or equal to the startup temperature, closing the ultrasonic assembly. By arranging the first temperature sensor and the second temperature sensor, opening and closing of the air supply door and the ultrasonic assembly are controlled according to the first temperature and the second temperature, and the fresh-keeping effect of the refrigeration equipment is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, and in particular to a refrigeration device, a control method for the refrigeration device, and a storage medium thereof. Background Art

[0002] As a new type of freezing technology, ultrasonic assisted freezing technology can increase the freezing rate of food, affect the formation and growth of ice crystals during the freezing process of food, control the size and distribution of ice crystals, increase the crystallization rate, shorten the freezing time, and reduce the damage of ice crystals to the muscle tissue structure, thereby improving the quality of frozen food. Therefore, ultrasound can be used to assist in the storage of food, thereby achieving the purpose of extending the shelf life. Existing ultrasonic preservation devices generally use ultrasonic vibrators to convert electrical energy into mechanical waves through vibration. Heat is generated during the conversion process, which will cause temperature changes in the preservation space and cause the quality of stored food to deteriorate. At the same time, this ultrasonic preservation device will also cause the refrigerator's refrigeration system to start frequently, resulting in increased energy consumption and even shortening the service life of the refrigerator. Summary of the invention

[0003] The purpose of the present application is to solve at least one of the technical problems existing in the prior art, and to provide a refrigeration device, a control method for a refrigeration device and a storage medium thereof, which can effectively cool down the ultrasonic component and prevent the heat generated by the ultrasonic component from affecting the preservation effect of the refrigeration device.

[0004] In a first aspect, an embodiment of the present application provides a refrigeration device, including:

[0005] A fresh-keeping drawer is located in the refrigerating chamber of the refrigerating device, and the refrigerating chamber is provided with an air supply damper corresponding to the fresh-keeping drawer;

[0006] An ultrasonic component, disposed at the bottom of the fresh-keeping drawer, and used for emitting ultrasonic waves into the interior of the fresh-keeping drawer;

[0007] A first temperature sensor is arranged in the fresh-keeping drawer and is used to obtain a first temperature of the fresh-keeping drawer;

[0008] A second temperature sensor is arranged at the bottom of the fresh-keeping drawer and is used to obtain a second temperature of the ultrasonic component;

[0009] A controller is used to start the ultrasonic component when the first temperature and the second temperature are both lower than a preset power-on temperature when the air supply damper is turned on; and to shut down the ultrasonic component when the first temperature is greater than or equal to the power-on temperature and / or the second temperature is greater than or equal to the power-on temperature.

[0010] The refrigeration equipment provided in the embodiment of the present application has at least the following beneficial effects: by providing an air supply damper and an ultrasonic component, the formation of ice nuclei is promoted by ultrasound, the freezing rate of food is increased, and the damage to the structure of food is reduced; by providing a first temperature sensor and a second temperature sensor, the opening and closing of the air supply damper and the ultrasonic component are controlled according to the temperature of the fresh-keeping drawer and the temperature of the ultrasonic component during the refrigeration process, and the ultrasonic component is cooled during the refrigeration process to prevent the heat generated by the ultrasonic component from affecting the fresh-keeping effect of the refrigeration equipment.

[0011] In the above refrigeration equipment, the ultrasonic component includes a tray for placing items, an ultrasonic vibrator located at the bottom of the tray, and a support frame for supporting the tray.

[0012] In the above refrigeration equipment, a shock absorbing block is further provided between the tray and the support frame.

[0013] In the above refrigeration equipment, the ultrasonic vibrators are evenly distributed on the bottom of the tray.

[0014] In the above refrigeration device, the first temperature sensor is located at the top of the fresh-keeping drawer, and the second temperature sensor is located at the center of the bottom of the tray.

[0015] In a second aspect, an embodiment of the present application provides a control method for a refrigeration device, which is applied to the refrigeration device as described above;

[0016] The control method of the refrigeration equipment comprises:

[0017] When the air supply damper is opened, when the first temperature and the second temperature are both lower than the preset startup temperature, the ultrasonic component is started;

[0018] When the first temperature is greater than or equal to the power-on temperature and / or the second temperature is greater than or equal to the power-on temperature, the ultrasonic component is turned off.

[0019] The control method of the refrigeration equipment provided in the embodiment of the present application has at least the following beneficial effects: by setting an air supply damper and an ultrasonic component, the formation of ice nuclei is promoted by ultrasound, the freezing rate of food is increased, and the damage to the structure of food is reduced; by setting a first temperature sensor and a second temperature sensor, the switch of the air supply damper and the ultrasonic component is controlled according to the temperature of the fresh-keeping drawer and the temperature of the ultrasonic component during the refrigeration process, and the ultrasonic component is cooled during the refrigeration process to prevent the heat generated by the ultrasonic component from affecting the fresh-keeping effect of the refrigeration equipment.

[0020] In the above-mentioned control method for refrigeration equipment, the method further includes:

[0021] In the case where the air supply damper is closed, when the first temperature is greater than or equal to the startup temperature and / or the second temperature is greater than or equal to the startup temperature, the air supply damper is opened.

[0022] In the above control method for refrigeration equipment, after starting the ultrasonic component, the method further includes:

[0023] When the first temperature is between the preset shutdown temperature and the startup temperature and the second temperature is between the shutdown temperature and the startup temperature, the air supply damper and the ultrasonic component are kept opened.

[0024] In the above-mentioned control method for refrigeration equipment, the method further includes:

[0025] When the first temperature is less than or equal to the shutdown temperature and the second temperature is less than or equal to the shutdown temperature, shutting down the compressor of the refrigeration equipment;

[0026] Delay closing of the air supply damper and the ultrasonic component.

[0027] In a third aspect, an embodiment of the present application provides a control device for a refrigeration equipment, characterized in that it includes at least one control processor and a memory for communicating with the at least one control processor; the memory stores instructions that can be executed by the at least one control processor, and the instructions are executed by the at least one control processor so that the at least one control processor can execute the control method as described above.

[0028] The control device of the refrigeration equipment provided in the embodiment of the present application has at least the following beneficial effects: by setting an air supply damper and an ultrasonic component, the formation of ice nuclei is promoted by ultrasound, the freezing rate of food is increased, and the damage to the structure of food is reduced; by setting a first temperature sensor and a second temperature sensor, the switch of the air supply damper and the ultrasonic component is controlled according to the temperature of the fresh-keeping drawer and the temperature of the ultrasonic component during the refrigeration process, and the ultrasonic component is cooled during the refrigeration process to prevent the heat generated by the ultrasonic component from affecting the fresh-keeping effect of the refrigeration equipment.

[0029] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the control method as described above.

[0030] The computer-readable storage medium provided in accordance with the embodiment of the present application has at least the following beneficial effects: by providing an air supply damper and an ultrasonic component, the formation of ice nuclei is promoted by ultrasound, the freezing rate of food is increased, and damage to the structure of food is reduced; by providing a first temperature sensor and a second temperature sensor, the opening and closing of the air supply damper and the ultrasonic component are controlled according to the temperature of the fresh-keeping drawer and the temperature of the ultrasonic component during the refrigeration process, and the ultrasonic component is cooled during the refrigeration process to prevent the heat generated by the ultrasonic component from affecting the fresh-keeping effect of the refrigeration equipment.

[0031] 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 by the structures specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are used to provide further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0033] Figure 1 It is a structural exploded diagram of a refrigeration device provided in an embodiment of the present application;

[0034] Figure 2 is a cross-sectional view of a refrigeration device provided by another embodiment of the present application;

[0035] Figure 3 is a flow chart of a control method for a refrigeration device provided in an embodiment of the present application;

[0036] Figure 4 is a flow chart of a control method for a refrigeration device provided by another embodiment of the present application;

[0037] Figure 5 yes Figure 3 Flow chart of step S2000;

[0038] Figure 6 yes Figure 4 Flowchart of step S4000;

[0039] Figure 7 It is a schematic diagram of a control device for a refrigeration device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0041] In the description of the present application, it should be understood that the descriptions involving orientations, such as up, down, front, back, left, right, etc., and the orientations or positional relationships indicated are the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] 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.

[0043] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0044] The refrigeration equipment and control method of the refrigeration equipment involved in the present application are based on ultrasonic assisted freezing technology. As a new type of freezing technology, ultrasonic assisted freezing technology can increase the freezing rate of food, affect the formation and growth of ice crystals during the freezing process of food, control the size and distribution of ice crystals, increase the crystallization rate, shorten the freezing time, and reduce the damage of ice crystals to the muscle tissue structure, thereby improving the quality of frozen food. In addition, ultrasonic preservation technology is a technology that uses the physical and chemical effects of ultrasound in food to extend the shelf life of food. Its main functions include: bactericidal effect, ultrasound can destroy the cell walls and cell membranes of bacteria and microorganisms, causing them to die or lose their reproductive ability. Through ultrasonic treatment, bacteria and microorganisms in food can be effectively killed, thereby extending the shelf life of food; osmotic effect, ultrasound can change the interaction between solutes and solvents in food, enhance the diffusion and penetration of substances, which can promote the rapid penetration of water, nutrients and seasonings in food into the interior of food, so that it can absorb and maintain the taste more evenly, thereby extending the shelf life of food; remove bubbles, ultrasound can produce visible and tiny bubbles, and through its high-frequency vibration, the bubbles can produce a cycle of expansion and contraction.

[0045] Therefore, during the operation of the ultrasonic component, heat is generated due to high-frequency vibration, which affects the temperature in the refrigerator compartment of the refrigeration equipment, causing the freezing rate of food in the refrigerator compartment to decrease, making it impossible to guarantee the quality of the frozen food.

[0046] The embodiments of the present application provide a refrigeration device, a control method for the refrigeration device, and a storage medium thereof. By setting an air supply damper 200 and an ultrasonic component 300, ultrasound is used to promote ice nucleus formation, increase the freezing rate of food, and reduce damage to the structure of food. By setting a first temperature sensor 110 and a second temperature sensor 120, the air supply damper 200 and the ultrasonic component 300 are controlled to switch according to the temperature of the fresh-keeping drawer 100 and the temperature of the ultrasonic component 300 during the refrigeration process, and the ultrasonic component 300 is cooled during the refrigeration process to prevent the heat generated by the ultrasonic component 300 from affecting the fresh-keeping effect of the refrigeration device.

[0047] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0048] See also Figure 1 and Figure 2 , Figure 1 and Figure 2 The first aspect of the present application provides a schematic diagram of a refrigeration device. Figure 1 and Figure 2 As shown, the refrigeration equipment provided in this embodiment includes: a fresh-keeping drawer 100, which is located in the refrigerator compartment of the refrigeration equipment, and the refrigerator compartment is provided with an air supply damper 200 corresponding to the fresh-keeping drawer 100; an ultrasonic component 300, which is arranged at the bottom of the fresh-keeping drawer 100 and is used to emit ultrasonic waves to the inside of the fresh-keeping drawer 100; a first temperature sensor 110, which is arranged in the fresh-keeping drawer 100 and is used to obtain a first temperature of the fresh-keeping drawer 100; a second temperature sensor 120, which is arranged at the bottom of the fresh-keeping drawer 100 and is used to obtain a second temperature of the ultrasonic component 300; a controller, which is used to start the ultrasonic component 300 when the first temperature and the second temperature are both lower than the preset power-on temperature when the air supply damper 200 is opened; and turn off the ultrasonic component 300 when the first temperature is greater than or equal to the power-on temperature and / or the second temperature is greater than or equal to the power-on temperature.

[0049] It can be understood that by providing the air supply damper 200 and the ultrasonic component 300, the formation of ice nuclei is promoted by ultrasound, the freezing rate of food is increased, and the damage to the structure of food is reduced; by providing the first temperature sensor 110 and the second temperature sensor 120, the switch of the air supply damper 200 and the ultrasonic component 300 is controlled according to the temperature of the fresh-keeping drawer 100 and the temperature of the ultrasonic component 300 during the refrigeration process, and the ultrasonic component 300 is cooled during the refrigeration process to prevent the heat generated by the ultrasonic component 300 from affecting the preservation effect of the refrigeration equipment.

[0050] It is understandable that the air supply damper 200 can be connected to the refrigerant circulation system of the refrigeration equipment through an independent air duct, so that the refrigerant circulation system of the refrigeration equipment can continue to cool and reduce the temperature of the fresh-keeping drawer 100 through the air supply damper 200. Specifically, the evaporator of the refrigerant circulation system is connected to the air supply damper 200 through the air duct. When the refrigerant circulation system starts to work, the high-temperature air passes through the evaporator to form low-temperature cold air, and enters the fresh-keeping drawer 100 through the opened air supply damper 200, so as to quickly cool the food in the fresh-keeping drawer 100.

[0051] In another embodiment, the ultrasonic assembly 300 includes a tray 310 for placing items, an ultrasonic vibrator 320 located at the bottom of the tray 310, and a support frame 330 for supporting the tray 310. By arranging the tray 310, the ultrasonic vibrator 320, and the support frame 330, the tray 310 is fixed in the fresh-keeping drawer 100 by the support frame 330 to ensure that the items can be stably stored.

[0052] Specifically, the tray 310 is made of metal material to reduce the energy loss of ultrasonic waves at the tray 310. In addition, the ultrasonic vibrator 320 is installed on the bottom surface of the tray 310 to amplify the ultrasonic waves generated by the ultrasonic vibrator 320 through the tray 310 and evenly transmit them to the objects on the tray 310, thereby improving the freezing speed and uniformity of the objects.

[0053] It can be understood that the ultrasonic vibrator 320 is composed of a piezoelectric ceramic sheet, a magnet and a coil. The piezoelectric ceramic sheet is the working part of the ultrasonic vibrator 320. It is composed of two extremely thin metal films sandwiching a layer of insulating material; the magnet and the coil are connected together to form an electromagnetic field. The strength of the magnetic field can control the vibration amplitude and frequency of the piezoelectric ceramic sheet, that is, change the natural oscillation frequency of the piezoelectric ceramic sheet. When current passes through the coil, an alternating magnetic field is generated and acts on the magnet; when the magnetic field strength exceeds a certain value, the piezoelectric ceramic sheet vibrates and outputs mechanical energy. Since the electronic circuit is used for control, the ultrasonic vibrator 320 is small in size, light in weight and high in efficiency; at the same time, since the electronic circuit is used for driving and control, the performance of the ultrasonic vibrator 320 is stable and reliable, and it is easy to use and maintain. In addition, the ultrasonic vibrator 320 can be attached to the bottom surface of the tray 310 through a coupling agent to improve the stability of the ultrasonic vibrator 320 and reduce ultrasonic loss.

[0054] In another embodiment, a shock absorbing block 340 is further provided between the tray 310 and the support frame 330. Since the ultrasonic vibrator 320 will vibrate at high frequency during operation, in order to avoid resonance between the fresh-keeping drawer 100 and the refrigeration equipment, affecting the operating quality of the refrigeration equipment, and causing unnecessary ultrasonic loss, a shock absorbing block 340 needs to be provided between the tray 310 and the support frame 330 to buffer the high-frequency vibration between the tray 310 and the support frame 330. Specifically, the shock absorbing block 340 can select a spring with low cost and strong stability. Among them, the compression spring is a helical spring that bears axial pressure. The spring is generally divided into an equal pitch spring and a variable pitch spring. The shape of the compression spring includes: cylindrical, conical, convex and concave, and a small amount of non-circular, etc. There is a certain gap between the coils of the compression spring. When subjected to an external load, the spring contracts and deforms to store deformation energy. Variable pitch springs are becoming more and more common. They are no longer just equal pitch springs. Variable pitch springs can play different roles in different environments. During the operation of the ultrasonic vibrator 320 , the shock absorbing block 340 can be deformed to effectively absorb and release energy, thereby preventing the fresh-keeping drawer 100 from resonating.

[0055] In another embodiment, the ultrasonic vibrators 320 are evenly distributed at the bottom of the tray 310. The ultrasonic vibrators 320 are evenly distributed at the bottom of the tray 310, which can ensure that the ultrasonic waves generated by the ultrasonic vibrators 320 can be evenly and stably applied to the items on the tray 310, avoiding ultrasonic wave loss caused by uneven distribution of the ultrasonic vibrators 320, effectively reducing the energy consumption of the refrigeration equipment, and improving the freezing rate of the items.

[0056] In another embodiment, the first temperature sensor 110 is located at the top of the fresh-keeping drawer 100, and the second temperature sensor 120 is located at the center of the bottom of the tray 310. It can be understood that the first temperature sensor 110 is used to obtain the first temperature of the fresh-keeping drawer 100. In order to ensure that the first temperature can accurately reflect the temperature of the internal space of the fresh-keeping drawer 100, that is, the temperature of the items on the tray 310, the first temperature sensor 110 is located at the top of the fresh-keeping drawer 100 to avoid the temperature acquisition accuracy of the first temperature sensor 110 being affected when the fresh-keeping drawer 100 is frequently opened and closed. Of course, in actual applications, the position of the first temperature sensor 110 can also be adjusted according to the structure of the fresh-keeping drawer 100 and the position of the air supply damper 200, which is not limited here.

[0057] It is understandable that the second temperature sensor 120 is used to obtain the second temperature of the ultrasonic assembly 300. In order to ensure that the second temperature can accurately reflect the temperature rise caused by the ultrasonic assembly 300 to the nearby area during operation, that is, the temperature at the center of the multiple ultrasonic vibrators 320, the second temperature sensor 120 is located at the center of the bottom of the tray 310 to avoid the second temperature sensor 120 and the multiple ultrasonic vibrators 320 being at different distances, which affects the acquisition accuracy of the second temperature of the ultrasonic assembly 300. Of course, in actual applications, the position of the first temperature sensor 110 can also be adjusted according to the position of the ultrasonic vibrator 320, which is not limited here.

[0058] In actual applications, the first temperature sensor 110 and the second temperature sensor 120 are electrically connected to the controller. At the same time, the controller is also connected to the air supply damper 200, the ultrasonic component 300 and other components through the electronic control system of the refrigeration equipment. The first temperature and the second temperature are obtained in real time to control the opening and closing of the air supply damper 200 and the ultrasonic component 300, so as to avoid the heat generated by the ultrasonic component 300 during operation affecting the refrigeration of the items, thereby achieving precise refrigeration of the items in the fresh-keeping drawer 100 and ensuring the fresh-keeping effect of the refrigeration equipment.

[0059] See also Figure 3 and Figure 4 , Figure 3 and Figure 4 The flowchart of the control method of a refrigeration device provided by the second aspect of the present application is shown. Figure 3 and Figure 4 As shown, the control method of the refrigeration equipment includes the following steps:

[0060] Step S1000: when the air supply damper 200 is closed, when the first temperature is greater than or equal to the power-on temperature and / or the second temperature is greater than or equal to the power-on temperature, the air supply damper 200 is opened.

[0061] It is understandable that before controlling the refrigeration equipment, the refrigeration equipment needs to be installed and prepared for operation, such as ensuring that the refrigerant pipeline connection between the compressor and the evaporator in the refrigeration equipment is stable; the fan, evaporator and other components in the air duct of the air supply damper 200 are operating normally; the support frame 330 and the ultrasonic vibrator 320 are fixedly installed at the bottom of the tray 310, and the shock-absorbing block 340 is installed between the tray 310 and the support frame 330; the first temperature sensor 110 is installed at the top of the fresh-keeping drawer 100, and the second temperature sensor 120 is installed at the center of the bottom of the tray 310, ensuring that the first temperature sensor 110 can accurately obtain the first temperature of the fresh-keeping drawer 100, and the second temperature sensor 120 can accurately obtain the second temperature of the ultrasonic component 300; the opening control unit of the compressor and the fan, the switch control unit of the air supply damper 200 and the ultrasonic vibrator 320 operate normally, and can accurately control the switching of the air supply damper 200, and accurately control the shutdown and startup of the compressor, the fan and the ultrasonic vibrator 320. At the same time, when the compressor, fan, air supply damper 200 and ultrasonic vibrator 320 are in operation, the refrigeration device communicates with the compressor, fan, air supply damper 200, the first temperature sensor 110 and the second temperature sensor 120 through the controller to obtain the first temperature and the second temperature in real time.

[0062] It is understandable that when a refrigeration device such as a refrigerator stops refrigerating the fresh-keeping drawer 100, the air supply damper 200 is in a closed state. At this time, as the temperature inside the fresh-keeping drawer 100 increases, that is, the first temperature and the second temperature increase, in order to ensure the refrigeration effect on the items in the fresh-keeping drawer 100, the air supply damper 200 needs to be re-opened, and the fan brings cold air into the fresh-keeping drawer 100 through the air supply damper 200 to refrigerate the fresh-keeping drawer 100. When the first temperature is greater than or equal to the preset power-on temperature and / or the second temperature is greater than or equal to the power-on temperature, the air supply damper 200 is opened to allow the refrigeration device to re-refrigerate the fresh-keeping drawer 100.

[0063] Among them, the startup temperature is a temperature value preset by humans or defaulted by the system, so as to automatically control the startup and shutdown of the refrigeration equipment, avoid frequent startup and shutdown of the compressor or poor refrigeration effect. Generally speaking, the temperature setting of the refrigerator should be between 0-5℃. This temperature range is most suitable for food refrigeration and preservation. At this temperature, food can be kept fresh and the growth of bacteria will be inhibited. If the temperature of the refrigerator is set too low, the food may freeze, affecting the taste and quality. If the temperature is set too high, the shelf life of the food will be shortened and it will easily deteriorate. Refrigeration temperature requirements for different foods Different foods have different requirements for refrigeration temperature. The following are the refrigeration temperature requirements for some common foods: Meat and seafood: Meat and seafood should be refrigerated at a temperature of 0-2℃. This temperature can prevent the growth of bacteria while keeping the food fresh and taste. Vegetables and fruits: The refrigeration temperature of vegetables and fruits should be between 2-5℃. This temperature can extend the shelf life of vegetables and fruits while maintaining their nutritional value. Dairy products and yogurt: Dairy products and yogurt should be refrigerated at a temperature of 2-4℃. This temperature preserves the freshness and taste of dairy products while preventing bacterial growth.

[0064] It is understandable that the first temperature and the second temperature are obtained by the first temperature sensor 110 and the second temperature sensor 120, and compared with the startup temperature. When the first temperature is greater than or equal to the startup temperature and / or the second temperature is greater than or equal to the startup temperature, the air supply damper 200 is opened to allow the refrigeration device to refrigerate the fresh-keeping drawer 100, so as to avoid the temperature of the fresh-keeping drawer 100 being too high and affecting the fresh-keeping effect of the refrigeration device. Among them, by comparing the current temperature with the startup temperature, the refrigeration device is started and stopped, which belongs to the prior art and will not be described in detail here.

[0065] Step S2000: When the air supply damper 200 is opened and the first temperature and the second temperature are both lower than the preset startup temperature, the ultrasonic component 300 is started.

[0066] It is understandable that when the air supply damper 200 is turned on, the refrigeration device continuously cools the fresh-keeping drawer 100 through the air supply damper 200. When the first temperature and the second temperature are both lower than the preset power-on temperature, that is, the temperature of the internal space of the fresh-keeping drawer 100 is lower than the power-on temperature, and the items in the fresh-keeping drawer 100 are lower than the power-on temperature during the refrigeration of the refrigeration device, then starting the ultrasonic component 300 can effectively ensure the fresh-keeping effect of the fresh-keeping drawer 100. At the same time, the ultrasonic component 300 is started after the fresh-keeping drawer 100 is refrigerated, and the ultrasonic component 300 is cooled during the refrigeration process, thereby solving the problem of the ultrasonic component 300 releasing heat and causing the temperature inside the fresh-keeping drawer 100 to rise.

[0067] It is understandable that the first temperature and the second temperature are obtained by the first temperature sensor 110 and the second temperature sensor 120, and compared with the power-on temperature. When the first temperature and the second temperature are both lower than the preset power-on temperature, the ultrasonic component 300 is turned on to enable the ultrasonic component 300 to emit ultrasonic waves to the interior of the fresh-keeping drawer 100, thereby promoting ice nucleation, increasing the freezing rate of food, and reducing damage to the food structure. Among them, the control of the start and stop of the ultrasonic component 300 by comparing the current temperature with the power-on temperature belongs to the prior art and will not be repeated here.

[0068] See also Figure 5 , Figure 5 FIG. 5 shows a schematic diagram of a specific implementation process of the above step S2000. Figure 5 As shown, step S2000 at least includes the following steps:

[0069] Step S2100: Start the ultrasonic component 300.

[0070] It is understandable that the ultrasonic vibrator 320 is activated by the controller, and the ultrasonic vibrator 320 emits ultrasonic waves to the tray 310 and the items on the tray 310. Ultrasonic waves can destroy the cell walls and cell membranes of bacteria and microorganisms, causing them to die or lose their reproductive ability. Through ultrasonic treatment, the bacteria and microorganisms in the food on the tray 310 can be effectively killed, thereby extending the shelf life of the food. In addition, ultrasonic waves can change the interaction between the solute and the solvent in the food, enhance the diffusion and penetration ability of the substance, which can promote the rapid penetration of water, nutrients and seasonings in the food into the interior of the food, so that it can be more evenly absorbed and retain the taste, thereby extending the shelf life of the food.

[0071] Step S2200: When the first temperature is between the preset shutdown temperature and the startup temperature and the second temperature is between the shutdown temperature and the startup temperature, the air supply damper 200 and the ultrasonic component 300 are kept open.

[0072] It is understandable that after the ultrasonic component 300 is started, the first temperature and the second temperature need to be monitored in real time to ensure that the ultrasonic component 300 works within a suitable temperature range, effectively avoiding the temperature rise of the fresh-keeping drawer 100 caused by the heat of the ultrasonic vibrator 320, which affects the preservation effect of the items in the fresh-keeping drawer 100. When the first temperature is between the preset shutdown temperature and the startup temperature, and at the same time, the second temperature is also between the shutdown temperature and the startup temperature, that is, after the ultrasonic component 300 is started, the first temperature and the second temperature are both lower than the preset startup temperature and higher than the preset shutdown temperature. At this time, the heat emitted by the ultrasonic vibrator 320 during the working process can be effectively cooled by the cold air coming out of the air supply damper 200. At the same time, the first temperature and the second temperature do not reach the shutdown temperature of the refrigeration equipment. Therefore, the air supply damper 200 and the ultrasonic component 300 are kept open. The air supply door 200 continuously cools down the items in the fresh-keeping drawer 100 and the ultrasonic vibrator 320 , and the ultrasonic vibrator 320 continuously emits ultrasonic waves to the items in the fresh-keeping drawer 100 to improve the fresh-keeping effect of the fresh-keeping drawer 100 .

[0073] It is understandable that the control of opening the air supply damper 200 and the ultrasonic component 300 by comparing the magnitude relationship between the first temperature and the second temperature and the shutdown temperature and the startup temperature belongs to the prior art and will not be described in detail here. By real-time monitoring of the first temperature and the second temperature, it can effectively ensure that the fan, the air supply damper 200 and the ultrasonic vibrator 320 can determine whether to cool and preserve the fresh-keeping drawer 100 according to the first temperature and the second temperature, thereby improving the correlation between the first temperature and the second temperature and the working state of the fan, the air supply damper 200 and the ultrasonic vibrator 320.

[0074] Step S3000: When the first temperature is greater than or equal to the power-on temperature and / or the second temperature is greater than or equal to the power-on temperature, turn off the ultrasonic component 300.

[0075] It is understandable that after the ultrasonic component 300 is started, the ultrasonic vibrator 320 will radiate heat outward during the high-frequency operation. When the heat accumulates to a certain amount, the second temperature collected by the second temperature sensor 120 rises and is greater than the power-on temperature; or items with a higher temperature are placed inside the fresh-keeping drawer 100, so that the first temperature collected by the first temperature sensor 110 rises and is greater than the power-on temperature. At this time, due to the temperature rise inside the fresh-keeping drawer 100, the items in the fresh-keeping drawer 100 cannot maintain a stable temperature, and the ultrasonic vibrator 320 cannot maintain the preservation effect. It is necessary to turn off the ultrasonic component 300 so that the ultrasonic vibrator 320 stops radiating heat outward, ensuring that the temperature inside the fresh-keeping drawer 100 drops rapidly, so as to achieve the effect of precise temperature control of the fresh-keeping drawer 100.

[0076] It is understandable that after the ultrasonic component is turned off, the air supply damper 200 remains open, and the refrigeration device continues to refrigerate the items in the fresh-keeping drawer 100 through the compressor, the fan and the air supply damper 200. At this time, the refrigeration device returns to step S1000 to perform the refrigeration operation on the fresh-keeping drawer 100 only by opening the air supply damper 200.

[0077] Step S4000: When the first temperature is less than or equal to the shutdown temperature and the second temperature is less than or equal to the shutdown temperature, the refrigeration device is controlled to stop refrigeration.

[0078] It can be understood that when the first temperature is less than or equal to the shutdown temperature and the second temperature is less than or equal to the shutdown temperature, that is, the temperature in the fresh-keeping drawer 100 is already lower than the preset shutdown temperature, in order to avoid the temperature in the fresh-keeping drawer 100 being too low to affect the preservation effect of the items, and at the same time, in order to reduce the energy consumption of the refrigeration equipment, it is necessary to control the refrigeration equipment to stop refrigeration.

[0079] See also Figure 6 , Figure 6 FIG. 4 shows a schematic diagram of a specific implementation process of the above step S4000. Figure 6 As shown, step S4000 at least includes the following steps:

[0080] Step S4100: When the first temperature is less than or equal to the shutdown temperature and the second temperature is less than or equal to the shutdown temperature, shut down the compressor of the refrigeration equipment.

[0081] It is understandable that when the first temperature is less than or equal to the shutdown temperature and the second temperature is less than or equal to the shutdown temperature, that is, the internal temperature of the fresh-keeping drawer 100 is lower than the preset shutdown temperature, the refrigeration equipment needs to stop refrigerating the fresh-keeping drawer 100. Among them, the compressor is a driven fluid machine that lifts low-pressure gas to high-pressure gas, and is the core component and main energy-consuming component of the refrigeration equipment. The compressor inhales low-temperature and low-pressure refrigerant gas from the suction pipe, compresses it by driving the piston through the operation of the motor, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle of the refrigeration equipment. Therefore, when the first temperature is less than or equal to the shutdown temperature and the second temperature is less than or equal to the shutdown temperature, the compressor of the refrigeration equipment is first turned off to reduce the energy consumption of the refrigeration equipment. Of course, in a refrigerator with multiple refrigeration compartments, since the freezer needs to continue to work and refrigerate the compressor continuously, the temperature of the refrigerator compartment is lower than the shutdown temperature at this time, and the compressor of the refrigeration equipment cannot be turned off, but the effect of reducing the energy consumption of the refrigeration equipment can be achieved by closing the refrigeration damper of the refrigerator compartment.

[0082] Step S4200: Delay closing of the air supply damper 200 and the ultrasonic component 300.

[0083] It is understandable that after turning off the compressor of the refrigeration equipment, in order to avoid the first temperature and the second temperature from suddenly rising due to stopping refrigeration and affecting the refrigeration effect of the fresh-keeping drawer 100, it is necessary to delay the closing of the air supply damper 200 and the ultrasonic component 300, that is, after turning off the compressor of the refrigeration equipment, the air supply damper 200 and the ultrasonic component 300 remain open within the preset delay period, and continue to transmit cold air and emit ultrasonic waves to the fresh-keeping drawer 100, so as to avoid rapid temperature rise in the fresh-keeping drawer 100 and affect the refrigeration effect of the refrigeration equipment.

[0084] Specifically, the air supply damper 200 and the ultrasonic component 300 are closed for a delay of 10 minutes, that is, after the compressor of the refrigeration device is turned off, wait for another 10 minutes and then close the air supply damper 200 and the ultrasonic component 300. During the waiting time, if the first temperature and / or the second temperature rises and is higher than the startup temperature, the air supply damper 200 and the ultrasonic component 300 are cancelled, and the compressor of the refrigeration device is restarted to cool the fresh-keeping drawer 100.

[0085] It is understandable that the air supply damper 200 and the ultrasonic component 300 are closed with a delay. After the compressor of the refrigeration device is turned off, the air supply damper 200 and the ultrasonic component 300 continue to transmit cold air and emit ultrasonic waves to the fresh-keeping drawer 100 to avoid the temperature in the fresh-keeping drawer 100 changing too fast and affecting the fresh-keeping effect of the fresh-keeping drawer 100. Among them, the delayed closing of the air supply damper 200 and the ultrasonic component 300 by the controller belongs to the prior art, and the length of the delayed closing can be controlled by the timing component inside the refrigeration device, which will not be repeated here.

[0086] Reference Figure 7 The third aspect embodiment of the present application also provides a control device 500 for a refrigeration device, comprising at least one control processor 510 and a memory 520 for communicating with the at least one control processor 510; the memory 520 stores instructions that can be executed by the at least one control processor 510, and the instructions are executed by the at least one control processor 510 so that the at least one control processor 510 can execute the control method of the refrigeration device as described above.

[0087] The control device of the refrigeration equipment provided in the embodiment of the present application has at least the following beneficial effects: by setting the air supply damper 200 and the ultrasonic component 300, the formation of ice nuclei is promoted by ultrasound, the freezing rate of food is increased, and the damage to the structure of food is reduced; by setting the first temperature sensor 110 and the second temperature sensor 120, the opening and closing of the air supply damper 200 and the ultrasonic component 300 are controlled according to the temperature of the fresh-keeping drawer 100 and the temperature of the ultrasonic component 300 during the refrigeration process, and the ultrasonic component 300 is cooled during the refrigeration process to prevent the heat generated by the ultrasonic component 300 from affecting the fresh-keeping effect of the refrigeration equipment.

[0088] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute a control method such as the embodiment of the first aspect.

[0089] The computer-readable storage medium provided in accordance with the embodiment of the present application has at least the following beneficial effects: by providing an air supply damper 200 and an ultrasonic component 300, the formation of ice nuclei is promoted by ultrasound, the freezing rate of food is increased, and damage to the structure of food is reduced; by providing a first temperature sensor 110 and a second temperature sensor 120, the opening and closing of the air supply damper 200 and the ultrasonic component 300 are controlled according to the temperature of the fresh-keeping drawer 100 and the temperature of the ultrasonic component 300 during the refrigeration process, and the ultrasonic component 300 is cooled during the refrigeration process to prevent the heat generated by the ultrasonic component 300 from affecting the fresh-keeping effect of the refrigeration equipment.

[0090] It will be appreciated by those skilled in the art that all or some of the steps and systems in the disclosed method above may be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components 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 may be implemented as hardware, or may be implemented 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 a non-transitory medium) and a communication medium (or a temporary 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 technologies, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that may be used to store desired information and may be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically include 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.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0092] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A refrigeration device, characterized in that: include: A fresh-keeping drawer is located in the refrigerating chamber of the refrigerating device, and the refrigerating chamber is provided with an air supply damper corresponding to the fresh-keeping drawer; An ultrasonic component, arranged at the bottom of the fresh-keeping drawer, for emitting ultrasonic waves into the interior of the fresh-keeping drawer; A first temperature sensor is arranged in the fresh-keeping drawer and is used to obtain a first temperature of the fresh-keeping drawer; A second temperature sensor is arranged at the bottom of the fresh-keeping drawer and is used to obtain a second temperature of the ultrasonic component; A controller is used to start the ultrasonic component when the first temperature and the second temperature are both lower than a preset power-on temperature when the air supply damper is turned on; and to shut down the ultrasonic component when the first temperature is greater than or equal to the power-on temperature and / or the second temperature is greater than or equal to the power-on temperature.

2. The refrigeration equipment according to claim 1, characterized in that: The ultrasonic component comprises a tray for placing articles, an ultrasonic vibrator located at the bottom of the tray and a support frame for supporting the tray.

3. The refrigeration equipment according to claim 2, characterized in that: A shock absorbing block is also provided between the tray and the supporting frame.

4. The refrigeration equipment according to claim 2, characterized in that: The ultrasonic vibrators are evenly distributed on the bottom of the tray.

5. The refrigeration equipment according to claim 4, characterized in that: The first temperature sensor is located at the top of the fresh-keeping drawer, and the second temperature sensor is located at the center of the bottom of the tray.

6. A method for controlling a refrigeration device, characterized in that: Applicable to the refrigeration equipment according to any one of claims 1 to 5; The control method of the refrigeration equipment comprises: When the air supply damper is opened, when the first temperature and the second temperature are both lower than the preset startup temperature, the ultrasonic component is started; When the first temperature is greater than or equal to the power-on temperature and / or the second temperature is greater than or equal to the power-on temperature, the ultrasonic component is turned off.

7. The method according to claim 6, characterized in that The method further comprises: In the case where the air supply damper is closed, when the first temperature is greater than or equal to the startup temperature and / or the second temperature is greater than or equal to the startup temperature, the air supply damper is opened.

8. The method according to claim 6, characterized in that After starting the ultrasonic component, the method further includes: When the first temperature is between the preset shutdown temperature and the startup temperature and the second temperature is between the shutdown temperature and the startup temperature, the air supply damper and the ultrasonic component are kept opened.

9. The method according to claim 8, characterized in that The method further comprises: When the first temperature is less than or equal to the shutdown temperature and the second temperature is less than or equal to the shutdown temperature, shutting down the compressor of the refrigeration equipment; Delay closing of the air supply damper and the ultrasonic component.

10. A control device for a refrigeration device, characterized in that: It includes at least one control processor and a memory for communicating with the at least one control processor; the memory stores instructions that can be executed by the at least one control processor, and the instructions are executed by the at least one control processor so that the at least one control processor can execute the control method as described in any one of claims 6 to 9.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the control method according to any one of claims 6 to 9.

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