Storage cabinet and operation control method thereof

Abstract

The invention discloses a storage cabinet and an operation control method of the storage cabinet. The storage cabinet is internally provided with a storage chamber, a refrigerating system and a heating system, wherein the refrigerating system and the heating system are connected with the storage chamber; wherein the heating system comprises at least two heaters, and the installation positions of the heaters are different; after the storage cabinet is powered on, when a preset first temperature rising condition is met, a target heater is selected according to a priority sequence, and the target heater is controlled to be started and run; the rise rate of the chamber temperature is calculated in real time according to the chamber temperature; and when the preset temperature adjustment stopping condition is not met and the compartment temperature rising speed is changed from being larger than the preset speed threshold value to being smaller than the speed threshold value, the next target heater is selected, and the target heater is controlled to be started and run. By the adoption of the refrigerator, the multiple heaters are arranged for cooperative heating, the temperature of the compartment can be more uniform, the heating requirement is met, and the energy-saving, efficient and safe effects are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of storage cabinets, in particular to a storage cabinet and a running control method of the storage cabinet. BACKGROUND

[0002] With the improvement of people's living standards, different items will be stored in different storage cabinets, and the storage conditions of the storage cabinets will be controlled to meet the storage needs of the items, such as wine cabinets, medicine cabinets, refrigerators, etc. Different items have different requirements for their own storage temperature and humidity. For items that require storage temperature, the temperature inside the storage cabinet cannot be too high or too low, otherwise it may affect the quality of the stored items.

[0003] In the prior art, refrigeration products such as refrigerators and wine cabinets output cold energy through a refrigeration system to reduce the internal temperature. However, when some special conditions occur, such as when the ambient temperature is low and the compartment temperature is set high, it is obvious that the compartment does not need to be cooled, and the temperature cannot reach the set temperature, so an auxiliary heating device needs to be added to meet the requirements. However, the inventors have found that the prior art has the following problems: the current conventional heating control method uses a single heater to heat, the temperature accumulates, the temperature fluctuates greatly, and the quality of the stored items is affected during the heating process. In addition, a single heater also makes it difficult to meet the demand for heating power, and increasing the power will exceed the safe power, which can easily cause the temperature of the unit area to be too high, increasing the risk of the inner container, and reducing the user's experience. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a storage cabinet and a running control method of the storage cabinet, by setting multiple heaters and optimizing the control means of the heaters, the temperature of the compartment can be more uniform, the heating demand can be met, and the effects of energy saving, high efficiency and safety can be achieved.

[0005] To achieve the above-mentioned purpose, the embodiments of the present application provide a storage cabinet, comprising:

[0006] a cabinet body, which is internally provided with a storage compartment, and a refrigeration system and a heating system connected with the storage compartment; wherein the heating system comprises at least two heaters, and each of the heaters is arranged at a different position;

[0007] a compartment temperature sensor arranged in the storage compartment, for collecting the temperature of the compartment;

[0008] a controller, configured to:

[0009] after the storage cabinet is powered on, when a preset first heating condition is met, a target heater is selected according to a priority order, and the target heater is controlled to start running; wherein each of the heaters is sorted according to a preset priority order;

[0010] calculating a chamber temperature rising rate in real time according to the chamber temperature;

[0011] when the preset temperature adjustment stopping condition is met and the chamber temperature rising rate changes from being greater than the preset rate threshold to being less than the preset rate threshold, selecting a next target heater and controlling the target heater to start operating.

[0012] As an improvement of the above scheme, the controller is further configured to:

[0013] when the continuous operating time of any of the target heaters is greater than or equal to a preset first time length, controlling the target heater to stop operating, and when the continuous stopping time of the target heater is greater than or equal to a preset second time length, controlling the target heater to start operating again.

[0014] As an improvement of the above scheme, the storage cabinet further comprises a fan configured to circulate air to the storage chamber;

[0015] The controller is further configured to:

[0016] when the preset first temperature rising condition is met, controlling the fan to start operating;

[0017] when the preset temperature adjustment stopping condition is met, controlling all the heaters to stop operating, and after a third time length elapses, controlling the fan to stop operating.

[0018] As an improvement of the above scheme, the storage cabinet further comprises:

[0019] an ambient temperature sensor arranged outside the cabinet body and configured to collect an ambient temperature;

[0020] The first temperature rising condition is that the chamber set temperature is greater than the ambient temperature and the chamber set temperature is greater than the chamber temperature.

[0021] The temperature adjustment stopping condition is that the chamber temperature is equal to the chamber set temperature.

[0022] As an improvement of the above scheme, the controller is further configured to:

[0023] after the storage cabinet is powered on, when a preset second temperature rising condition is met, controlling the fan to start operating, and until the temperature adjustment stopping condition is met, controlling the fan to stop operating; wherein the second temperature rising condition is that the chamber set temperature is less than or equal to the ambient temperature and the chamber set temperature is greater than the chamber temperature.

[0024] As an improvement of the above scheme, when the preset second temperature rising condition is met, controlling the fan to start operating, and until the temperature adjustment stopping condition is met, controlling the fan to stop operating, comprises:

[0025] When the preset second temperature rising condition is met, it is judged whether the difference between the chamber set temperature and the chamber temperature is less than a preset first temperature difference threshold value;

[0026] If yes, the fan is controlled to start running, and all the heaters are controlled not to start running until the stop temperature adjusting condition is met, and the fan is controlled to stop running;

[0027] If no, the fan is controlled to start running, a target heater is selected and the target heater is controlled to start running until the stop temperature adjusting condition is met, and the fan and the target heater are controlled to stop running.

[0028] As an improvement of the above scheme, the controller is further configured to:

[0029] After the storage cabinet is powered on, when a preset first temperature dropping condition is met, the refrigeration system and the fan are controlled to start running until the stop temperature adjusting condition is met, and the refrigeration system and the fan are controlled to stop running;

[0030] When a preset second temperature dropping condition is met, the fan is controlled to start running until the stop temperature adjusting condition is met, and the fan is controlled to stop running;

[0031] Wherein, the first temperature dropping condition is that the chamber set temperature is less than or equal to the ambient temperature, and the chamber set temperature is less than the chamber temperature; the second temperature dropping condition is that the chamber set temperature is greater than the ambient temperature, and the chamber set temperature is less than the chamber temperature.

[0032] As an improvement of the above scheme, when the preset second temperature dropping condition is met, the fan is controlled to start running until the stop temperature adjusting condition is met, and the fan is controlled to stop running, comprising:

[0033] When the preset second temperature dropping condition is met, it is judged whether the difference between the chamber set temperature and the chamber temperature is less than a preset second temperature difference threshold value;

[0034] If yes, the fan is controlled to start running, and the refrigeration system is controlled not to start running until the stop temperature adjusting condition is met, and the fan is controlled to stop running;

[0035] If no, the fan is controlled to start running, and the refrigeration system is controlled to start running until the stop temperature adjusting condition is met, and the fan and the refrigeration system are controlled to stop running.

[0036] As an improvement of the above-mentioned scheme, the heater is divided into a main heater and at least one auxiliary heater, the priority order of the main heater is higher than that of any auxiliary heater, and the heating power and / or heating area of the main heater is higher than that of any auxiliary heater; the main heater is arranged in the evaporator area of the refrigeration system.

[0037] The embodiment of the present application also provides a running control method of a storage cabinet, the storage cabinet comprising:

[0038] a cabinet body, which is internally provided with a storage compartment, and a refrigeration system and a heating system connected with the storage compartment; wherein the heating system comprises at least two heaters, and each heater is arranged at a different position;

[0039] a compartment temperature sensor arranged in the storage compartment and used for collecting a compartment temperature;

[0040] The method comprises:

[0041] After the storage cabinet is powered on, when a preset first temperature rising condition is met, a target heater is selected according to a priority order, and the target heater is controlled to start running; wherein each heater is arranged according to a preset priority order;

[0042] a compartment temperature rising rate is calculated in real time according to the compartment temperature;

[0043] When a preset stop temperature adjusting condition is not met, and the compartment temperature rising rate changes from being greater than a preset rate threshold to being less than the rate threshold, a next target heater is selected and controlled to start running.

[0044] Compared with the prior art, the storage cabinet and the running control method of the storage cabinet disclosed by the present application can realize the heating of the storage compartment by arranging multiple heaters, control the multiple heaters separately, realize step-by-step heating, make the compartment temperature more uniform, meet the heating demand, avoid the problem that the heating power is difficult to meet the demand caused by the heating of a single heater, and the problem that the increase of the temperature per unit area caused by the increase of the power exceeding the safety power threshold increases the safety risk of the inner container. Moreover, the continuous running time of each heater is limited, which is beneficial to prevent the continuous long-time work of the same heater from affecting the service life of the heater, and avoid the temperature aggregation in the same area from affecting the quality of the articles stored in the area in the storage compartment, affecting the quality of the inner container, the fan and other components, and the present application can achieve the effect of more energy-saving, faster, safer and more uniform temperature rising of the storage compartment. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 is a first structure schematic view of a storage cabinet provided by the embodiment of the present application;

[0046] Figure 2 Fig. 1 is a structural schematic diagram of a refrigeration system in an embodiment of the present application;

[0047] Figure 3 Fig. 2 is a second structural schematic diagram of a storage cabinet in an embodiment of the present application;

[0048] Figure 4 Fig. 3 is a third structural schematic diagram of a storage cabinet in an embodiment of the present application;

[0049] Figure 5 Fig. 4 is a first working flow schematic diagram of a controller in an embodiment of the present application;

[0050] Figure 6 Fig. 5 is a curve schematic diagram of temperature change of a heating system in an embodiment of the present application;

[0051] Figure 7 Fig. 6 is a second working flow schematic diagram of a controller in an embodiment of the present application;

[0052] Figure 8 Fig. 7 is a third working flow schematic diagram of a controller in an embodiment of the present application;

[0053] Figure 9 Fig. 8 is a fourth working flow schematic diagram of a controller in an embodiment of the present application;

[0054] Figure 10 Fig. 9 is a fifth working flow schematic diagram of a controller in an embodiment of the present application. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0056] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0057] The terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply relative importance or a number of the indicated technical features. Thus, features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0058] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] Referring to Figure 1 is a first structure schematic diagram of a storage cabinet provided by an embodiment of the present application. The embodiment of the present application provides a storage cabinet 10, which comprises a cabinet body, a storage chamber 11 is arranged in the cabinet body, and a refrigeration system 12 and a heating system 13 are connected with the storage chamber 11. More preferably, the storage cabinet further comprises a chamber temperature sensor 14, an ambient temperature sensor 15 and a fan 16.

[0060] It should be noted that the storage cabinet 10 can be applied in various scenes, used for storing different kinds of articles, for example, as a wine cabinet, a medicine cabinet, a commodity cabinet or a refrigerator, etc., thereby providing a storage environment with corresponding conditions for different kinds of articles.

[0061] Specifically, the storage chamber 11 is used for storing articles. The inside of the storage chamber 11 can be arranged as a plurality of storage layers, or a plurality of storage compartments, etc., or can be arranged as other formats according to the needs of users, which do not affect the beneficial effects of the present application.

[0062] The refrigeration system 12 is used to provide cold energy for the storage chamber 11 to reduce the chamber temperature Tv of the storage chamber 11, so that the storage chamber 11 is maintained in a low-temperature state. The refrigeration system 12 can be a compressor refrigeration, semiconductor refrigeration or other refrigeration mode. The output cold energy of the refrigeration system 12 can be adjusted in size as required, and the refrigeration amount output size is adjusted according to the system demand load, and the environmental temperature, the high and low of the chamber temperature and the size of the chamber humidity are adjusted to determine the temperature and humidity of the storage chamber to meet the requirements. When the compressor refrigeration mode is used, the output cold energy size can be adjusted by adjusting the running speed and / or running frequency of the compressor. When the semiconductor refrigeration is used, the output cold energy size can be adjusted by adjusting the input voltage. Of course, if other refrigeration modes are used, the output cold energy size can also be adjusted according to the actual situation, which will not be repeated here.

[0063] Referring to Figure 2 is a structural schematic diagram of the refrigeration system in the embodiment of the application, taking the compressor refrigeration mode as an example. The refrigeration system 12 includes a compressor 121, an evaporator 122, a drying filter (not shown in the figure), a throttling component 123, a condenser 124 and a gas-liquid separator (not shown in the figure). The working process of the refrigeration system includes a compression process, a condensation process, a throttling process and an evaporation process. The compression process is that the refrigerator power cord is plugged in, and the compressor 121 starts to work when the box has a refrigeration demand. The low-temperature and low-pressure refrigerant is sucked into the compressor 121, compressed into high-temperature and high-pressure superheated gas in the cylinder of the compressor 121, and then discharged into the condenser 124. The condensation process is that the high-temperature and high-pressure refrigerant gas is cooled by the condenser 124, the temperature continuously decreases, and is gradually cooled into saturated vapor at normal temperature and high pressure, and further cooled into saturated liquid, and the temperature no longer decreases. At this time, the temperature is called the condensation temperature, and the pressure of the refrigerant in the entire condensation process is almost unchanged. The throttling process is that the saturated liquid refrigerant after condensation flows into the throttling component 123, such as a capillary tube, through which the pressure is reduced, and the refrigerant becomes wet vapor at normal temperature and low pressure. The evaporation process is that the wet vapor at normal temperature and low pressure starts to absorb heat in the evaporator 122 to vaporize, not only reduces the temperature of the evaporator 122 and its surrounding, but also makes the refrigerant into a low-temperature and low-pressure gas. The refrigerant discharged from the evaporator 122 passes through the gas-liquid separator again and returns to the compressor 121, repeating the above process, transferring the heat in the refrigerator to the air outside the box, achieving the purpose of refrigeration.

[0064] Of course, the specific form of the refrigeration system involved in the above scenario and the refrigeration mode thereof are only examples, and in actual application, they can be set according to the actual situation, which will not be specifically limited here.

[0065] Preferably, the storage cabinet further comprises an evaporator sensor arranged at the evaporator 122 of the refrigeration system, for collecting the temperature of the evaporator 122, denoted as evaporator temperature Tz.

[0066] The heating system 13 is used to provide heat for the storage compartment 11, and functions to regulate the compartment temperature Tv of the storage compartment 11, which can be started or stopped according to the control requirement. In the embodiment of the present application, the heating system 13 comprises at least two heaters, and each of the heaters is arranged at different positions.

[0067] Preferably, the heaters are divided into a main heater and at least one auxiliary heater, the priority order of the main heater is higher than that of any auxiliary heater, and the heating power and / or heating area of the main heater is higher than that of any auxiliary heater; the main heater is arranged at the evaporator region of the refrigeration system.

[0068] Optionally, the heating system 13 can be arranged as a heating wire and attached to the inner surface of the storage compartment 11. Of course, other heating methods can also be used or combined, which does not affect the beneficial effects achieved by the present application.

[0069] The compartment temperature sensor 14 is arranged in the storage compartment 11, and the compartment temperature sensor 14 is used to collect the current compartment temperature Tv inside the storage compartment 11.

[0070] Preferably, the compartment temperature sensor 14 comprises at least two sub-temperature sensors, and each of the sub-temperature sensors is arranged at different positions inside the storage compartment 11, for collecting temperature values at different positions, and the temperature values collected by each of the sub-temperature sensors are averaged to obtain the current compartment temperature Tv inside the storage compartment 11.

[0071] The ambient temperature sensor 15 is arranged outside the cabinet body, and the ambient temperature sensor 15 is used to collect the current ambient temperature Te of the environment where the storage cabinet is located.

[0072] The fan 16 is arranged above the evaporator region, for circulating air supply inside the storage compartment 11, to achieve the function of heat dissipation or cold dissipation.

[0073] As an example, refer to Figure 3 and Figure 4 , Figure 3 is a second structural schematic diagram of the storage cabinet in the embodiment of the present application, Figure 4is a third structure schematic view of the storage cabinet in the embodiment of the present application, the heating system 13 includes a main heater 131, a first auxiliary heater 132 and a second auxiliary heater 133, wherein the heating power and / or heating area of the main heater 131 is more than twice that of the first auxiliary heater 132 or the second auxiliary heater 133. Each of the heaters is attached to the bubble layer inner container, the main heater 131 is located in the bottom evaporator area, and the first auxiliary heater 132 and the second auxiliary heater 133 are respectively located in the middle area of the back of the inner container and the top area of the back of the inner container. The three heaters are respectively located at the upper, middle and lower positions of the back of the chamber, which can not only improve the heating speed of the chamber, but also make the temperature of each area of the chamber more uniform.

[0074] The chamber temperature sensor 14 includes a first sub-temperature sensor 141, a second sub-temperature sensor 142 and a third sub-temperature sensor 143, which are respectively equidistantly arranged on the inner wall of the storage chamber 11. The fan 16 is installed on the air duct cover plate to realize forced convection heat exchange / cold exchange between the storage chamber and the air duct cavity.

[0075] Further, the storage cabinet 10 further includes a controller 17, which is connected with the refrigeration system 12, the heating system 13, the chamber temperature sensor 14, the environment temperature sensor 15 and the fan 16, etc. to realize information collection, calculation analysis and control instruction issuing, so as to control the operating parameters of the refrigeration system 12, the starting operation or shutdown of the heating system 13 and the fan 16, etc.

[0076] Specifically, referring to Figure 5 is a first working process schematic view of the controller in the embodiment of the present application. The controller 17 is specifically used for executing steps S11 to S13:

[0077] S11, after the storage cabinet is powered on, when the preset first temperature rising condition is met, a target heater is selected according to the priority order, and the target heater is controlled to start operation; wherein each of the heaters is sorted according to the preset priority order;

[0078] S12, the chamber temperature rising rate is calculated in real time according to the chamber temperature;

[0079] S13, when the preset stop temperature adjusting condition is not met, and the chamber temperature rising rate changes from greater than the preset rate threshold to less than the rate threshold, the next target heater is selected and the target heater is controlled to start operation.

[0080] In the embodiment of the present application, mainly in order to solve the problem of uneven temperature caused by using a single heater in the prior art, and the problem of difficult to balance the heating demand and the heating safety, the cooperation of multiple heaters is set to realize the heating of the storage compartment, and the control means of the heater is optimized. Specifically, each of the heaters is prioritized, and taking the above three heaters as an example, the main heater 131 is in the first priority, and the priority order of the first auxiliary heater 132 and the second auxiliary heater 133 can be randomly set, for example, the first auxiliary heater 132 is set in the second priority, and the second auxiliary heater 133 is set in the third priority.

[0081] In the control process, the first temperature rising condition and the stop temperature adjusting condition are set in advance, the first temperature rising condition is used to represent the condition that the compartment temperature Tv inside the storage compartment 11 is currently satisfied, and the stop temperature adjusting condition is used to represent the condition that the adjustment of the compartment temperature Tv inside the storage compartment 11 is currently stopped. When the preset first temperature rising condition is met, the target heater is obtained in the order of the priority order, for example, the first target heater is the main heater 131, and then the main heater 131 is controlled to start running to heat the storage compartment 11, so that the compartment temperature Tv inside the storage compartment 11 is raised, and the other auxiliary heaters are temporarily not started. According to the change of the compartment temperature TV, the compartment temperature rising rate ΔTv is calculated in real time, which is used to reflect the uniformity and stability of the change of the compartment temperature. At the beginning of heating, the compartment temperature rising rate ΔTv is relatively high, which is usually greater than the preset rate threshold ΔTvs, and during the heating process, the compartment temperature rising rate ΔTv gradually decreases. When the preset stop temperature adjusting condition is not met, and the compartment temperature rising rate ΔTv changes from greater than the preset rate threshold ΔTvs to less than the rate threshold ΔTvs, the next target heater is selected according to the priority order, for example, the second target heater is the first auxiliary heater 132, and the first auxiliary heater 132 is controlled to start running to heat the storage compartment 11, so that the compartment temperature Tv inside the storage compartment 11 is raised. When the second auxiliary heater 133 starts running, the compartment temperature rising rate ΔTv will increase to be greater than the preset rate threshold ΔTvs, and during the heating process, the compartment temperature rising rate ΔTv will gradually decrease. When the preset stop temperature adjusting condition is not met, and the compartment temperature rising rate ΔTv changes from greater than the preset rate threshold ΔTvs to less than the rate threshold ΔTvs, the next target heater is selected according to the priority order, for example, the third target heater is the second auxiliary heater 133, and the second auxiliary heater 133 is controlled to start running.

[0082] Preferably, the preset rate threshold value ATvs can be set to multiple, and the corresponding rate threshold value is selected according to the actual situation to complete the judgment condition. As an example, a first rate threshold value ATvs1 and a second rate threshold value ATvs2 are set, and ATvs1> ATvs2. After the main heater 131 starts to run, during the heating process, when the preset stop temperature adjustment condition is not met, and the chamber temperature rising rate ATv changes from greater than the first rate threshold value ATvs1 to less than the first rate threshold value ATvs1, the first auxiliary heater 132 is controlled to start running. During the heating process, when the preset stop temperature adjustment condition is not met, and the chamber temperature rising rate ATv changes from greater than the second rate threshold value ATvs2 to less than the second rate threshold value ATvs2, the second auxiliary heater 133 is controlled to start running.

[0083] Referring to Figure 6 , which is a curve diagram of the temperature change of the heating system in the embodiment of the present application. It can be seen that compared with the existing heating scheme, the embodiment of the present application can realize step-by-step heating, so that the chamber temperature is more uniform, and the heating demand is reached more quickly.

[0084] Preferably, the controller is further configured to control the fan to start running when the preset first temperature rising condition is met.

[0085] Specifically, when the first temperature rising condition is met, the fan also starts running in the heating process of each heater, and the inside of the storage chamber 11 is circulated and ventilated, so that the temperature inside the storage chamber 11 is more uniform.

[0086] By using the technical means of the embodiment of the present application, the heating of the storage chamber is realized by setting multiple heaters, the multiple heaters are controlled separately, step-by-step heating is realized, the chamber temperature is more uniform, and the heating demand is met, avoiding the problem that the heating power is difficult to meet the demand caused by heating by a single heater, and improving the power will exceed the safety power threshold and cause the problem of excessive temperature per unit area increasing the safety risk of the inner container. The present application can achieve the effects of energy saving, high efficiency and safety of the storage cabinet temperature rising.

[0087] As a preferred embodiment, the embodiment of the present application is further implemented on the basis of the above-mentioned embodiment, and the controller is further configured to perform step S14:

[0088] S14, when the continuous running time of any target heater is greater than or equal to the preset first time length, the target heater is controlled to stop running, and until the continuous downtime of the target heater is greater than or equal to the preset second time length, the target heater is controlled to restart running.

[0089] In the embodiment of the present application, the control means of the heater is further optimized, a first time length t1 is set in advance to represent the size of the continuous operation time length of the heater, and a second time length t2 is set in advance to represent the size of the continuous stop time length of the heater.

[0090] In the heating process of each heater after the first temperature rising condition is met, if the time length of continuous operation of any target heater reaches the first time length t1, the corresponding target heater is controlled to suspend operation, but does not exit the temperature rising program, and the fan 16 continuously operates. After the second time length t2 is passed, if the stop temperature adjusting condition is not met, the corresponding target heater is controlled to restart operation to continue heating the storage compartment 11.

[0091] It should be noted that the compartment temperature rising rate ΔTv does not calculate the temperature rising rate in the heater suspension rest time.

[0092] By using the technical means of the embodiment of the present application, the continuous operation time length of each heater is limited, which is beneficial to prevent the same heater from continuously operating for a long time to affect the service life of the heater, and can avoid the temperature aggregation in the same area to affect the quality of the articles stored in the area in the storage compartment, affect the quality of the inner container, the fan and other components, and further improve the uniformity of the compartment temperature, and achieve the effect of more energy-saving, faster, safer and more uniform temperature rising of the storage compartment.

[0093] Preferably, after step S11, the controller is further used to perform step S15:

[0094] S15, when the preset stop temperature adjusting condition is met, control all the heaters to stop operation, and after a third time length t3 is passed, control the fan to stop operation.

[0095] Optionally, the third time length t3 is 5 min. Of course, other settings can also be made according to actual conditions.

[0096] By using the technical means of the embodiment of the present application, the third time length t3 is set to represent the size of the continuous operation time length of the fan after the heater stops operation, and the fan is controlled to continue operating for a certain time length and then stop, which can make the compartment temperature of the storage compartment 11 more uniform.

[0097] As a preferred embodiment, the embodiment of the present application is further implemented on the basis of any of the above embodiments, and the embodiment of the present application optimizes the operation control process of the storage cabinet. It should be noted that the storage cabinet is usually provided with a conventional temperature range, and the user can set the chamber set temperature of the storage chamber by modifying the conventional temperature range. Taking a wine cabinet as an example, the conventional temperature range is 5-20℃, when the ambient temperature Te>20℃, the ambient temperature must be higher than the chamber set temperature, the compressor starts normal refrigeration, and exits when the corresponding temperature is reached, and the minimum use climate type of the conventional wine cabinet appliance is SN, that is, the minimum suitable use environment temperature is 10℃. Therefore, considering the actual use, there will be a more severe environment scene, and the present case proposes a low-temperature operation control method, and the low-temperature environment temperature range to be applied needs to meet the conventional temperature range, for example, 5℃≤Te≤20℃, and the temperature control means of the storage chamber in the conventional temperature range is optimized.

[0098] In the embodiment of the present application, the storage cabinet further comprises a display panel, through which the user can input the required temperature gear to adjust the chamber set temperature Ts, and the chamber set temperature Ts represents a chamber temperature that the user expects the storage chamber 11 to maintain, which can be a temperature value or a temperature interval, and is not limited here. Of course, the display panel can also be used to display related operating parameters and alarm information, etc., which are not limited.

[0099] The embodiment of the present application calculates the difference between the chamber set temperature and the ambient temperature: ΔT1=Ts-Te, and calculates the difference between the chamber set temperature and the chamber temperature: ΔT2=Ts-Tv.

[0100] For the scenario of needing to warm up the storage chamber 11, that is, the scenario of the chamber temperature Tv of the storage chamber 11 being less than the chamber set temperature Ts.

[0101] In the first case, referring to Figure 7 is a second working process schematic diagram of the controller in the embodiment of the present application, and on the basis of the above embodiment, the first warming condition is that the chamber set temperature is greater than the ambient temperature, and the chamber set temperature is greater than the chamber temperature; and the stop temperature adjusting condition is that the chamber temperature is equal to the chamber set temperature.

[0102] Specifically, when ΔΤ1> 0 and ΔΤ2> 0, that is, the first temperature rising condition is met, the temperature of the intermediate chamber is low, less than the intermediate chamber set temperature set by the user, and needs to be raised, and the ambient temperature is low, and the temperature of the intermediate chamber cannot be compensated by the ambient temperature. As an example, when the ambient temperature is 5°C, the temperature of the intermediate chamber is 5°C, and the user re-adjusts the intermediate chamber set temperature to 20°C, at this time, the heaters need to be controlled to work cooperatively, and the heater control means can be referred to the above embodiment. The heaters are controlled to heat in a step-by-step manner to quickly and uniformly heat the storage chamber 11 and improve the temperature of the intermediate chamber Tv. Details are not described here.

[0103] Preferably, the stop temperature adjusting condition can also be that the evaporator temperature is greater than or equal to a preset temperature threshold.

[0104] It should be noted that the evaporator temperature Tz collected by the evaporator sensor arranged in the evaporator 122 region is generally used as the evaporator defrosting exit condition. In the embodiment of the present application, the temperature value collected by the evaporator sensor is used to reflect the temperature in the air duct cavity, and is used to set the stop temperature adjusting condition as one of the conditions for the heaters to exit heating.

[0105] In the second case, referring to Figure 8 FIG. 17 is a third working process diagram of the controller in the embodiment of the present application. The controller 17 is further used to perform step S16.

[0106] S16, after the storage cabinet is powered on, when a preset second temperature rising condition is met, the fan is controlled to start running until a stop temperature adjusting condition is met, and the fan is controlled to stop running; wherein the second temperature rising condition is that the intermediate chamber set temperature is less than or equal to the ambient temperature, and the intermediate chamber set temperature is greater than the intermediate chamber temperature.

[0107] Specifically, when ΔΤ1≤ 0 and ΔΤ2> 0, that is, the second temperature rising condition is met, the temperature of the intermediate chamber is low, less than the intermediate chamber set temperature set by the user, and needs to be raised, and the ambient temperature is high, and the temperature of the intermediate chamber can be compensated by the ambient temperature to a certain extent to achieve the effect of temperature rising. For example, in the stable state, the user adjusts the intermediate chamber set temperature to be higher, and then starts the fan 16 to circulate the air to the intermediate chamber to improve the uniformity of the temperature of the intermediate chamber.

[0108] More preferably, step S16, that is, when the preset second temperature rising condition is met, the fan is controlled to start running until the stop temperature adjusting condition is met, and the fan is controlled to stop running, comprises:

[0109] when the preset second temperature rising condition is met, determining whether a difference between the chamber set temperature and the chamber temperature is less than a preset first temperature difference threshold value;

[0110] If yes, controlling the fan to start running, and controlling all the heaters to not start running until the stop temperature adjusting condition is met, and controlling the fan to stop running;

[0111] If no, controlling the fan to start running, selecting a target heater and controlling the target heater to start running until the stop temperature adjusting condition is met, and controlling the fan and the target heater to stop running.

[0112] In the embodiment of the present application, the temperature rising control is divided into two cases for the scenario where the second temperature rising condition is met. A first temperature difference threshold value ΔT21 is preset to represent the difference between the chamber set temperature and the chamber temperature. When ΔT1≤0 and ΔT2>0, the relationship between ΔT2 and ΔT21 is further determined.

[0113] When ΔT2<ΔT21, it indicates that the difference between the chamber set temperature Ts and the current chamber temperature Tv is small. For example, the ambient temperature is 20°C, the current chamber temperature is 10°C, and the user adjusts the chamber set temperature to 11°C. At this time, the temperature change is not large, and the ambient temperature Te can be used for temperature compensation. Therefore, all the heaters in the heating system 13 are not controlled to start running, and the refrigeration system 12 is also not controlled to start running, and only the fan 16 is controlled to start running to compensate the chamber temperature Tv using the ambient temperature Te to achieve the effect of improving the chamber temperature Tv. When the fan operates to meet Tv=Ts, i.e., the stop temperature adjusting condition is met, the fan 16 is controlled to stop working.

[0114] When ΔT2≥ΔT21, it indicates that the difference between the chamber set temperature Ts and the current chamber temperature Tv is large. For example, the ambient temperature is 20°C, the current chamber temperature is 5°C, and the user adjusts the chamber set temperature to 18°C. At this time, the temperature change is large, and the ambient temperature Te is too slow to compensate the temperature. The heaters need to be started to make the chamber temperature Tv reach the chamber set temperature Ts faster. Therefore, a target heater is selected according to the priority order, for example, the first target heater is the main heater 131. The main heater 131 is controlled to start running, the refrigeration system 12 is not controlled to start running, and the fan 16 is controlled to start running. The storage chamber 11 enters the process of active temperature rising. When the fan operates to meet Tv=Ts, i.e., the stop temperature adjusting condition is met, the heating system 13 and the fan 16 are controlled to stop working.

[0115] When the ambient temperature is high and there is a demand for temperature rise of the storage compartment, the temperature rise process is controlled by the difference between the compartment set temperature and the compartment temperature, and when the temperature difference is small, the ambient temperature is relied on to compensate for the temperature rise, thereby effectively saving the energy consumption of the storage cabinet and meeting the temperature rise demand, and improving the user experience.

[0116] The scenario in which the storage compartment 11 needs to be cooled down, that is, the scenario in which the compartment temperature Tv of the storage compartment 11 is greater than the compartment set temperature Ts, is explained and described.

[0117] In the first case, referring to Figure 9 is a fourth working process schematic diagram of the controller in the embodiment of the present application, and the controller 17 is further configured to perform step S17:

[0118] After the storage cabinet is powered on, when a preset first cooling condition is met, the refrigeration system and the fan are controlled to start running until a stop temperature adjusting condition is met, and the refrigeration system and the fan are controlled to stop running. The first cooling condition is that the compartment set temperature is less than or equal to the ambient temperature, and the compartment set temperature is less than the compartment temperature.

[0119] Specifically, when △T1≤0 and △T2<0, that is, the first cooling condition is met, the compartment temperature is high and greater than the compartment set temperature set by the user, and needs to be cooled down, and the ambient temperature is high, and the compartment temperature cannot be cooled down by heat dissipation to the ambient temperature. At this time, the heating system 13 is not controlled to start running, the compressor 121 in the refrigeration system 12 is controlled to start running, the evaporator 122 is controlled to cool down, and the fan 16 is controlled to start forced circulation heat exchange, so as to achieve the effect of reducing the compartment temperature Tv, until Tv=Ts, that is, the stop temperature adjusting condition is met, and the refrigeration system 12 and the fan 16 are controlled to stop working.

[0120] In the second case, referring to Figure 10 is a fifth working process schematic diagram of the controller in the embodiment of the present application, and the controller 17 is further configured to perform step S18:

[0121] S18, when a preset second cooling condition is met, the fan is controlled to start running until a stop temperature adjusting condition is met, and the fan is controlled to stop running; the second cooling condition is that the compartment set temperature is greater than the ambient temperature, and the compartment set temperature is less than the compartment temperature.

[0122] Specifically, when the first temperature difference is greater than 0 and the second temperature difference is less than 0, i.e., the second temperature difference condition is satisfied, the chamber temperature is relatively high and greater than the chamber set temperature, and the ambient temperature is relatively low, so that the chamber temperature can be lowered by heat dissipation to the ambient temperature. This situation can occur in a scenario where the temperature difference between day and night is large in winter, or in a scenario where the chamber set temperature is lowered by the user in a stable state. In this case, the fan 16 is started to circulate air to the chamber to improve the uniformity of the chamber temperature.

[0123] More preferably, the step S18, i.e., the control of the fan to start running when the preset second temperature difference condition is satisfied until the stop temperature control condition is satisfied, and the control of the fan to stop running, comprises:

[0124] When the preset second temperature difference condition is satisfied, it is determined whether the difference between the chamber set temperature and the chamber temperature is less than a preset second temperature difference threshold value.

[0125] If yes, the fan is controlled to start running, and the refrigeration system is controlled not to start running, until the stop temperature control condition is satisfied, and the fan is controlled to stop running.

[0126] If no, the fan is controlled to start running, and the refrigeration system is controlled to start running, until the stop temperature control condition is satisfied, and the fan and the refrigeration system are controlled to stop running.

[0127] In the embodiment of the application, the temperature difference threshold value is set in advance, and is used to represent the difference between the chamber set temperature and the chamber temperature. When the first temperature difference is greater than 0 and the second temperature difference is less than 0, it is further determined whether the second temperature difference is greater than or less than the second temperature difference threshold value.

[0128] When the absolute value of the second temperature difference is less than the second temperature difference threshold value, it indicates that the difference between the chamber set temperature Ts and the current chamber temperature Tv is small. For example, the ambient temperature is 5°C, the current chamber temperature is 10°C, and the user adjusts the chamber set temperature to 9°C. At this time, the temperature change is not large, and the chamber temperature can be lowered only by natural heat dissipation to the ambient temperature Te. Therefore, all the heaters in the heating system 13 are controlled not to start running, and the refrigeration system 12 is also controlled not to start running. Only the fan 16 is controlled to start running, and the ambient temperature Te is used to balance the chamber temperature Tv to lower the chamber temperature Tv. When the fan operates to satisfy Tv = Ts, i.e., the stop temperature control condition is satisfied, the fan 16 is controlled to stop working.

[0129] When △T2≥△T22 is met, it indicates that the gap between the chamber set temperature Ts and the current chamber temperature Tv is large, for example, the ambient temperature is 5℃, the current chamber temperature is 18℃, and the user re-adjusts the chamber set temperature to 8℃, at this time, the temperature changes greatly, and the mode of relying on natural heat dissipation to the ambient temperature Te is too slow, and the refrigeration system needs to be started to make the chamber temperature Tv reach the chamber set temperature Ts more quickly. Therefore, the heating system 13 is controlled not to start running, the compressor 121 in the refrigeration system 12 is controlled to start running, the evaporator 122 performs refrigeration, and the fan 16 is controlled to start circulating air supply, and the storage chamber 11 enters the process of active cooling, until Tv=Ts is met, that is, the stop temperature regulating condition is met, and the refrigeration system 12 and the fan 16 are controlled to stop working.

[0130] When the ambient temperature is low and there is a demand for cooling the storage chamber, the difference between the chamber set temperature and the chamber temperature is used to control the cooling process, and when the temperature difference is small, the ambient temperature is used to balance the chamber temperature to achieve cooling, thereby effectively saving the energy consumption of the storage cabinet and meeting the cooling demand, and improving the user experience.

[0131] The embodiment of the application also provides a running control method of a storage cabinet.

[0132] The cabinet body is internally provided with a storage chamber, and a refrigeration system and a heating system connected with the storage chamber; wherein the heating system comprises at least two heaters, and the installation positions of the heaters are different;

[0133] A chamber temperature sensor is arranged in the storage chamber, and is used to collect the chamber temperature;

[0134] The method comprises steps S21 to S23:

[0135] S21, after the storage cabinet is powered on, when a preset first temperature rising condition is met, a target heater is selected according to the priority order, and the target heater is controlled to start running; wherein each heater is sorted according to a preset priority order;

[0136] S22, the chamber temperature rising rate is calculated in real time according to the chamber temperature;

[0137] S23, when a preset stop temperature regulating condition is not met, and the chamber temperature rising rate changes from being greater than a preset rate threshold to being less than the rate threshold, a next target heater is selected and the target heater is controlled to start running.

[0138] Preferably, after step S23, step S24 is further included:

[0139] S24, when the continuous running time of any of the target heaters is greater than or equal to a preset first time length, control the target heater to stop running, until the continuous shutdown time of the target heater is greater than or equal to a preset second time length, control the target heater to restart running.

[0140] Preferably, the storage cabinet further comprises a fan for circulating air supply to the storage chamber.

[0141] The method further comprises:

[0142] When the preset first temperature rising condition is met, control the fan to start running.

[0143] When the preset temperature adjustment stopping condition is met, control all the heaters to stop running, and after a third time length, control the fan to stop running.

[0144] Preferably, the storage cabinet further comprises:

[0145] An ambient temperature sensor arranged outside the cabinet body for collecting ambient temperature.

[0146] The first temperature rising condition is that the chamber set temperature is greater than the ambient temperature, and the chamber set temperature is greater than the chamber temperature.

[0147] The temperature adjustment stopping condition is that the chamber temperature is equal to the chamber set temperature.

[0148] As a preferred embodiment, the method further comprises step S25:

[0149] S25, after the storage cabinet is powered on, when the preset second temperature rising condition is met, control the fan to start running, until the temperature adjustment stopping condition is met, control the fan to stop running; wherein the second temperature rising condition is that the chamber set temperature is less than or equal to the ambient temperature, and the chamber set temperature is greater than the chamber temperature.

[0150] Preferably, when the preset second temperature rising condition is met, control the fan to start running, until the temperature adjustment stopping condition is met, control the fan to stop running, comprising:

[0151] When the preset second temperature rising condition is met, determine whether the difference between the chamber set temperature and the chamber temperature is less than a preset first temperature difference threshold value;

[0152] If yes, control the fan to start running, and control all the heaters not to start running, until the temperature adjustment stopping condition is met, control the fan to stop running;

[0153] If no, the fan is controlled to start running, a target heater is selected and the target heater is controlled to start running until the stop temperature adjustment condition is met, and the fan and the target heater are controlled to stop running.

[0154] As a preferred embodiment, the method further comprises steps S26 and S27:

[0155] S26, after the storage cabinet is powered on, when a preset first cooling condition is met, the refrigeration system and the fan are controlled to start running until the stop temperature adjustment condition is met, and the refrigeration system and the fan are controlled to stop running;

[0156] S27, when a preset second cooling condition is met, the fan is controlled to start running until the stop temperature adjustment condition is met, and the fan is controlled to stop running;

[0157] The first cooling condition is that the chamber set temperature is less than or equal to the environment temperature, and the chamber set temperature is less than the chamber temperature; and the second cooling condition is that the chamber set temperature is greater than the environment temperature, and the chamber set temperature is less than the chamber temperature.

[0158] Preferably, when the preset second cooling condition is met, the fan is controlled to start running until the stop temperature adjustment condition is met, and the fan is controlled to stop running, comprising:

[0159] When the preset second cooling condition is met, it is judged whether the difference between the chamber set temperature and the chamber temperature is less than a preset second temperature difference threshold value;

[0160] If yes, the fan is controlled to start running, and the refrigeration system is controlled not to start running until the stop temperature adjustment condition is met, and the fan is controlled to stop running;

[0161] If no, the fan is controlled to start running, and the refrigeration system is controlled to start running until the stop temperature adjustment condition is met, and the fan and the refrigeration system are controlled to stop running.

[0162] As a preferred embodiment, the heater is divided into a main heater and at least one auxiliary heater, the priority order of the main heater is higher than that of any auxiliary heater, and the heating power and / or heating area of the main heater are higher than those of any auxiliary heater; the main heater is arranged in the evaporator area of the refrigeration system.

[0163] It should be noted that the operation control method of the storage cabinet provided by the embodiment is the same as all the process steps performed by the controller of the storage cabinet of the above-mentioned embodiment, and the working principles and beneficial effects of the two are one-to-one correspondence, so they will not be repeated here.

[0164] Those skilled in the art will appreciate that all or part of the processes in the above-described method embodiments can be implemented by instructing related hardware through a computer program. The program can be stored in a computer-readable storage medium, and when executed, the program can include the processes in the above-described method embodiments. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

[0165] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A locker, characterized in that: The application relates to a storage cabinet, which comprises a cabinet body, a storage chamber arranged in the cabinet body, a refrigerating system and a heating system connected with the storage chamber; the heating system comprises at least two heaters, and the installation positions of the heaters are different; a chamber temperature sensor is arranged in the storage chamber and used for collecting a chamber temperature; and a controller is used for: selecting a target heater according to a priority order and controlling the target heater to start running when a preset first temperature rising condition is met after the storage cabinet is powered on; each heater is arranged according to a preset priority order; calculating a chamber temperature rising rate in real time according to the chamber temperature; selecting a next target heater and controlling the target heater to start running when the chamber temperature rising rate changes from being greater than a preset rate threshold to being less than the rate threshold and a preset stop temperature regulating condition is not met; the controller is further used for: controlling the target heater to stop running when the continuous running time of any target heater is greater than or equal to a preset first time length, and controlling the target heater to restart running when the continuous stop time of the target heater is greater than or equal to a preset second time length; the storage cabinet further comprises a fan used for circulating air supply to the storage chamber; the controller is further used for: controlling the fan to start running when the preset first temperature rising condition is met; and controlling all the heaters to stop running and the fan to stop running after a third time length when the preset stop temperature regulating condition is met; the storage cabinet further comprises an ambient temperature sensor arranged outside the cabinet body and used for collecting an ambient temperature; the first temperature rising condition is that the chamber set temperature is greater than the ambient temperature and the chamber set temperature is greater than the chamber temperature; the stop temperature regulating condition is that the chamber temperature is equal to the chamber set temperature; the controller is further used for: controlling the fan to start running when a preset second temperature rising condition is met after the storage cabinet is powered on, and controlling the fan to stop running when the stop temperature regulating condition is met; the second temperature rising condition is that the chamber set temperature is less than or equal to the ambient temperature and the chamber set temperature is greater than the chamber temperature; the controller is further used for: judging whether the difference between the chamber set temperature and the chamber temperature is less than a preset first temperature difference threshold when the preset second temperature rising condition is met; if yes, the fan is controlled to start running and all the heaters are controlled not to start running until the stop temperature regulating condition is met and the fan is controlled to stop running; if not, the fan is controlled to start running, a target heater is selected and the target heater is controlled to start running until the stop temperature regulating condition is met and the fan and the target heater are controlled to stop running; and the controller is further used for: ​ ​ ​ ​ ​ ​ 2. The storage cabinet of claim 1, wherein, ​ ​ 3. The storage cabinet of claim 2, wherein, ​ ​ ​ ​ 4. The storage cabinet of claim 3, wherein, ​ ​ ​ ​ 5. The storage cabinet of claim 4, wherein, ​ ​ 6. The storage cabinet of claim 5, wherein, ​ ​ ​ ​ 7. The storage cabinet of claim 4, wherein, ​ When the first preset temperature drop condition is met, the refrigeration system and the fan are controlled to start running until the stop temperature adjusting condition is met, and the refrigeration system and the fan are controlled to stop running; When the second preset temperature drop condition is met, the fan is controlled to start running until the stop temperature adjusting condition is met, and the fan is controlled to stop running; The first temperature drop condition is that the chamber set temperature is less than or equal to the ambient temperature, and the chamber set temperature is less than the chamber temperature; and the second temperature drop condition is that the chamber set temperature is greater than the ambient temperature, and the chamber set temperature is less than the chamber temperature.

8. The storage cabinet of claim 7, wherein, The control of the fan to start running when the second preset temperature drop condition is met, and the control of the fan to stop running when the stop temperature adjusting condition is met, include: When the second preset temperature drop condition is met, it is judged whether the difference between the chamber set temperature and the chamber temperature is less than a second preset temperature difference threshold value; If yes, the fan is controlled to start running, and the refrigeration system is controlled not to start running until the stop temperature adjusting condition is met, and the fan is controlled to stop running; If no, the fan is controlled to start running, and the refrigeration system is controlled to start running until the stop temperature adjusting condition is met, and the fan and the refrigeration system are controlled to stop running.

9. The storage cabinet of any one of claims 1 to 8, wherein, The heater is divided into a main heater and at least one auxiliary heater, the priority order of the main heater is higher than that of any auxiliary heater, and the heating power and / or heating area of the main heater are higher than those of any auxiliary heater; the main heater is arranged in the evaporator area of the refrigeration system.

10. A method of operating control of a locker, characterized by, The storage cabinet includes: a cabinet body, an internal storage chamber, a refrigeration system and a heating system connected with the storage chamber; wherein the heating system includes at least two heaters, and each heater is arranged at a different position; a chamber temperature sensor arranged in the storage chamber for collecting the chamber temperature; The method includes: After the storage cabinet is powered on, when the first preset temperature rise condition is met, a target heater is selected according to the priority order, and the target heater is controlled to start running; wherein each heater is sorted according to a preset priority order; The chamber temperature rise rate is calculated in real time according to the chamber temperature; When the stop temperature adjusting condition is not met, and the chamber temperature rise rate changes from greater than a preset rate threshold value to less than the rate threshold value, a next target heater is selected and controlled to start running.

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