Control method and device for refrigerator and refrigerator
By setting up an electric lock device in the freezer, calculating the center of gravity information based on the weight and height of the drawer, and controlling the working status of the electric lock device, the problem of forward tilting of the drawer-type freezer is solved, and the safety and insulation effect are improved.
Patent Information
- Application Number
- CN202410008174.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-03
- Publication Date
- 2025-07-04
AI Technical Summary
Existing drawer-type refrigerators are likely to cause the refrigerator to tilt forward when the drawer is pulled out, which poses safety risks and increases transportation costs and affects the insulation effect.
By setting up an electric lock device in the refrigerator, the center of gravity information is calculated based on the weight and height of the drawer, and the working state of the electric lock device is controlled to lock or unlock the drawer to avoid the refrigerator from tilting forward.
It reduces the probability of the refrigerator tilting forward, reduces transportation costs, increases storage space and improves insulation effect.
Smart Images
Figure CN120252284A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of intelligent household appliances, for example, to a control method, device and refrigerator-freezer for a drawer-type refrigerator-freezer. Background Art
[0002] The main structural feature of a drawer-type refrigerator-freezer is that there are multiple drawers in the storage compartment for storing items. When a user uses it, different items can be placed in different drawers. When taking an item, the corresponding drawer is pulled open, and the stored item is taken out with the drawer. However, during the process of pulling out the drawer and taking out the stored item, the overall center of gravity of the refrigerator-freezer will move forward. If the center of gravity of the refrigerator-freezer moves forward too much, the refrigerator-freezer will tip forward, thus bringing safety risks and property losses to the user.
[0003] In order to solve the above problems, current drawer-type refrigerator-freezers mostly adopt the method of adding counterweights at the rear side of the cabinet to reduce the risk of the refrigerator-freezer tipping forward.
[0004] However, adding counterweights in the refrigerator-freezer will increase the transportation cost of the refrigerator-freezer, reduce the available storage space of the refrigerator-freezer, and if the counterweight occupies the insulation space of the refrigerator-freezer, it will also affect the insulation effect of the refrigerator-freezer. Therefore, the method of reducing the risk of the refrigerator-freezer tipping forward by adding counterweights has low practicability.
[0005] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of this application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention
[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a comprehensive review, nor is it intended to identify key / important elements or delineate the scope of protection of these embodiments. Instead, it serves as a prelude to the detailed description that follows.
[0007] Embodiments of the present disclosure provide a control method, device and refrigerator-freezer for a refrigerator-freezer, which can reduce the risk of the refrigerator-freezer tipping forward and improve the practicability of the control method.
[0008] In some embodiments, a control method for a freezer is provided. The freezer includes a plurality of drawers and a plurality of electric lock devices provided corresponding to the drawers. The electric lock devices are used to lock the drawers to make them in a locked state, or release the locks on the drawers to make them in an unlocked state. The control method includes: obtaining the weight and height of a target drawer corresponding to an opening signal; determining the center-of-gravity information corresponding to the target drawer in an open state according to the weight and height of the target drawer; determining a preset center-of-gravity range of the freezer according to the open state of the target drawer; determining the working state of the electric lock device corresponding to the target drawer according to the determined center-of-gravity information and the preset center-of-gravity range; and controlling the electric lock device to work according to the working state of the electric lock device to lock or unlock the target drawer.
[0009] Optionally, the step of determining the working state of the electric lock device corresponding to the target drawer according to the determined center-of-gravity information and the preset center-of-gravity range includes: determining that the electric lock device corresponding to the target drawer is in a locked state when the center-of-gravity information does not meet the preset center-of-gravity range; and determining that the electric lock device corresponding to the target drawer is in an unlocked state when the center-of-gravity information meets the preset center-of-gravity range.
[0010] Optionally, the step of determining the center-of-gravity information corresponding to the target drawer in an open state according to the weight and height of the target drawer includes: determining the extraction length of the target drawer according to the open state of the target drawer; and determining a plurality of center-of-gravity information corresponding to a plurality of open states according to the weight, height and extraction length corresponding to each open state of the target drawer.
[0011] Optionally, the step of determining the preset center-of-gravity range of the freezer according to the open state of the target drawer includes: determining the extraction length of the target drawer in each open state; and determining the preset center-of-gravity range corresponding to each open state according to the extraction length, height of the target drawer and the weights of all drawers.
[0012] Optionally, the control method further includes: obtaining the weight change amount of the target drawer when the target drawer is in an open state; and controlling the electric lock device to operate to make the target drawer in a locked state and sending an overweight reminder when the weight change amount is greater than a preset value.
[0013] Optionally, before obtaining the opening signal, the control method further includes: obtaining the open / close state of the freezer door body; controlling all electric lock devices to lock to make all drawers in a locked state when the open / close state of the door body is an open state; and controlling all electric lock devices to unlock to make all drawers in an unlocked state when the open / close state of the door body is a closed state.
[0014] Optionally, when the door body is in the open state, the control method further includes: obtaining the opening time of the door body in real time; when the opening time of the door body reaches the time threshold, controlling the electric lock device to operate so that the target drawer returns to its position and sending an overtime reminder.
[0015] In some embodiments, a control device for a freezer is provided, including a processor and a memory storing program instructions, wherein the processor is configured to execute the control method for a freezer as described in the above embodiments when running the program instructions.
[0016] In some embodiments, a freezer is provided, including: a cabinet defining a storage compartment; a plurality of drawers spaced apart in the height direction of the cabinet in the storage compartment; a plurality of electric lock devices corresponding to the plurality of drawers, the electric lock device being configured to lock the drawer in a locked state or release the lock on the drawer to make it in an unlocked state; the control device for a freezer as described in the above embodiments, installed in the cabinet and communicatively connected to the plurality of electric lock devices.
[0017] Optionally, the electric lock device includes: a magnet disposed on the drawer; an electromagnet disposed on the side wall of the cabinet and communicatively connected to the control device for the freezer.
[0018] The control method, device and freezer provided by the embodiments of the present disclosure can achieve the following technical effects:
[0019] The control method provided by the present disclosure can determine the center of gravity information corresponding to the target drawer in the open state according to the weight and height of the target drawer, and then determine the preset center of gravity range of the freezer according to the open state of the target drawer. Furthermore, according to the determined center of gravity information and the preset center of gravity range, the working state of the electric lock device corresponding to the target drawer is determined, and the electric lock device is controlled to work to lock or unlock the target drawer, so as to limit the extractable state of the target drawer. By limiting the extractable state of the target drawer, the probability of the freezer tipping forward caused by excessive extraction of the drawer or the excessive weight of the extracted drawer, resulting in the forward shift of the center of gravity of the freezer, is reduced. In addition, compared with the related art, the present disclosure avoids the use of counterweights, thus reducing the transportation cost of the freezer, increasing the available storage space of the freezer, and improving the heat preservation effect of the freezer. In summary, the method provided by the present disclosure has higher practicability.
[0020] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and wherein:
[0022] Figure 1 is an exploded view of a freezer provided by an embodiment of the present disclosure;
[0023] Figure 2 is Figure 1 an enlarged schematic view of the structure at Q in the shown embodiment;
[0024] Figure 3 is a schematic diagram of a control method for a freezer provided by an embodiment of the present disclosure;
[0025] Figure 4 is a schematic diagram of another control method for a freezer provided by an embodiment of the present disclosure;
[0026] Figure 5 is a schematic diagram of another control method for a freezer provided by an embodiment of the present disclosure;
[0027] Figure 6 is a schematic diagram of a control device for a freezer provided by an embodiment of the present disclosure.
[0028] Reference numerals:
[0029] 1 Freezer;
[0030] 10 Cabinet; 110 Storage compartment; 120 Support rib;
[0031] 20 Drawer;
[0032] 30 Electric lock device; 310 Magnet; 320 Electromagnet;
[0033] 40 Door body; 50 Weight sensor;
[0034] 60 Control device for a freezer; 600 Processor; 601 Memory; 602 Communication interface; 603 Bus. Detailed implementation manners
[0035] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the drawings. The attached drawings are for reference and illustration only, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.
[0036] In the description, claims, and the above-mentioned drawings of the embodiments of the present disclosure, terms such as "first" and "second" are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.
[0037] Unless otherwise specified, the term "plurality" means two or more.
[0038] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.
[0039] The term "and / or" is an associative relationship describing an object, indicating that three relationships can exist. For example, A and / or B means: the three relationships of A, B, and A and B.
[0040] The term "corresponding" may refer to an associative relationship or a binding relationship. A corresponding to B means that there is an associative relationship or a binding relationship between A and B.
[0041] Combined Figure 1 and Figure 2 As shown, the embodiments of the present disclosure provide a freezer 1, including a plurality of drawers 20, a plurality of electric lock devices 30 corresponding to the drawers 20, and a control device 60 for the freezer. The electric lock device 30 is used to lock the drawer 20 to make it in a locked state, or release the lock on the drawer 20 to make it in an unlocked state. The control device 60 for the freezer is communicatively connected to the plurality of electric lock devices 30.
[0042] Optionally, the control device 60 for the freezer includes a processor, and the processor is communicatively connected to the plurality of electric lock devices 30. The processor can obtain the weight and height of the target drawer corresponding to the opening signal; can determine the center-of-gravity information corresponding to the target drawer in the open state according to the weight and height of the target drawer; can determine the preset center-of-gravity range of the freezer according to the open state of the target drawer; can determine the working state of the electric lock device corresponding to the target drawer according to the determined center-of-gravity information and the preset center-of-gravity range; can control the electric lock device to work according to the working state of the electric lock device to lock or unlock the target drawer.
[0043] Combined Figure 1 and Figure 2 For the freezer shown, the embodiments of the present disclosure provide a control method for the freezer, as Figure 3 shown, the control method includes:
[0044] S301, the processor obtains the weight and height of the target drawer corresponding to the opening signal.
[0045] Among them, the height of the target drawer can be determined and obtained through the pre-established association relationship between each drawer of the refrigerator and the drawer height.
[0046] S302, the processor determines the center-of-gravity information corresponding to the target drawer in the open state according to the weight and height of the target drawer.
[0047] Specifically, as Figure 1 shown, set the depth direction of the refrigerator as the X direction, the width direction as the Y direction, and the height direction as the Z direction. Then the center-of-gravity information of the refrigerator can be represented in the form of center-of-gravity coordinates.
[0048] Optionally, the step of determining the center-of-gravity information corresponding to the target drawer in the open state according to the weight and height of the target drawer includes: determining the extraction length of the target drawer according to the open state of the target drawer; determining multiple center-of-gravity information corresponding to multiple open states according to the weight, height and extraction length corresponding to each open state of the target drawer.
[0049] In this embodiment, it is possible to pre-determine the center-of-gravity information corresponding to the target drawer in different open states according to the weight and height of the target drawer before the target drawer is extracted. When the target drawer is in different open states, its extraction length is different. Exemplarily, set the extraction length of the drawer as n, the depth of the refrigerator and / or the length of the drawer as L. Then, when 0 < n ≤ 0.3L, it is determined that the drawer is in the first open state; when 0.3L < n ≤ 0.6L, it is determined that the drawer is in the second open state; when 0.6L < n ≤ 0.9L, it is determined that the drawer is in the third open state; when 0.9L < n, it is determined that the drawer is in the fourth open state. Determine the extraction length of the target drawer according to the open state of the target drawer. Among them, the extraction length of the target drawer takes the maximum extraction length corresponding to each open state. Exemplarily, in the first open state, the extraction length of the target drawer takes 0.3L; in the second open state, the extraction length of the target drawer takes 0.6L; in the third open state, the extraction length of the target drawer takes 0.9L. Determine multiple center-of-gravity information corresponding to multiple open states according to the weight, height and extraction length corresponding to each open state of the target drawer, so as to pre-determine the center-of-gravity information corresponding to the target drawer in different open states before the target drawer is extracted.
[0050] Optionally, according to the weight, height of the target drawer, and the extraction length corresponding to each opening state, a plurality of center-of-gravity information corresponding to a plurality of opening states is determined, including: according to the weight, height of the target drawer, and the extraction length corresponding to each opening state, query the center-of-gravity information of the refrigerator corresponding to the target drawer in each opening state in a pre-established refrigerator center-of-gravity information table.
[0051] In this embodiment, a refrigerator center-of-gravity information table is pre-established. The refrigerator center-of-gravity information table can reflect the center-of-gravity information of the refrigerator corresponding to each drawer in different opening states with different weights. The refrigerator center-of-gravity information table can be established by conducting a large number of experiments. Exemplarily, the hanging method, the support method, or the balance method is used to measure the center of gravity of the refrigerator corresponding to each drawer of the refrigerator in different opening states with different weights to form the refrigerator center-of-gravity information table. By pre-establishing the refrigerator center-of-gravity information table, the rate of determining the center-of-gravity information is improved, and the operation efficiency of this control method is improved.
[0052] Optionally, according to the weight, height of the target drawer, and the extraction length corresponding to each opening state, a plurality of center-of-gravity information corresponding to a plurality of opening states is determined, including: according to the height of the target drawer, the extraction length corresponding to each opening state, and a preset refrigerator center-of-gravity model, the preset refrigerator center-of-gravity model is corrected to obtain a corrected refrigerator center-of-gravity model; the mass distribution of the corrected refrigerator center-of-gravity model is assigned according to the weight of the target drawer; based on the corrected refrigerator center-of-gravity model and the mass distribution of the refrigerator center-of-gravity model, the center-of-gravity information of the refrigerator corresponding to the target drawer in each opening state is calculated.
[0053] In this embodiment, a refrigerator gravity center model is pre-saved as a preset refrigerator gravity center model. The refrigerator gravity center model is a three-dimensional model of the refrigerator, and this three-dimensional model can reflect the detailed shape and dimensions of the refrigerator. According to the height of the target drawer and the extraction length corresponding to each opening state, the structural changes of the refrigerator caused by the target drawer in different opening states are determined. Based on the structural changes of the refrigerator caused by the target drawer in different opening states, the preset refrigerator gravity center model is corrected to obtain a corrected refrigerator gravity center model, so that the corrected refrigerator gravity center model conforms to the specific shape and structure of the refrigerator in different opening states of the target drawer. Then, using the weight of the target drawer, a mass distribution assignment is performed on the three-dimensional model of the target drawer in the corrected refrigerator gravity center model. Except for the target drawer, there is no mass change in the remaining structures of the refrigerator, and no re-assignment is required. According to the corrected refrigerator gravity center model and the mass distribution of the refrigerator gravity center model, the geometric center and mass distribution of the refrigerator are weighted and averaged to calculate the gravity center position, and the gravity center information corresponding to the refrigerator in each opening state of the target drawer is obtained. Through the above gravity center information determination process, the gravity center information corresponding to the refrigerator in each opening state of the target drawer can be determined more accurately and flexibly, so as to improve the accuracy of the gravity center information determination of this control method and the reliability of this control method.
[0054] S303. The processor determines a preset gravity center range of the refrigerator according to the opening state of the target drawer.
[0055] Among them, the preset gravity center range refers to the safe range of the refrigerator gravity center. Different opening states of the target drawer correspond to different preset gravity center ranges.
[0056] Optionally, the step of determining the preset gravity center range of the refrigerator according to the opening state of the target drawer includes: determining the extraction length of the target drawer in each opening state; determining the preset gravity center range corresponding to each opening state according to the extraction length, height and weight of all drawers of the target drawer.
[0057] In this embodiment, the extraction length of the target drawer in each opening state is determined. When the target drawer is in different opening states, its drawer extraction length is different. Then, according to the extraction length, height and weight of all drawers of the target drawer, the preset gravity center range corresponding to each opening state is determined. Specifically, the gravity center information corresponding to each opening state can be determined first according to the extraction length, height and weight of the target drawer. That is, the extraction length of the target drawer takes the maximum extraction length corresponding to each opening state, and the corresponding gravity center information of the refrigerator. After obtaining the gravity center information of the refrigerator, the preset gravity center range corresponding to each opening state is determined by calculating the sum of the refrigerator gravity center information and the safety threshold, that is, the safe range of the refrigerator gravity center.
[0058] Exemplarily, in the first open state, the center-of-gravity information of the refrigerator is (X1, Y1, Z1). Then, the coordinate region (cubic region) formed by (X1 + a, Y1 + a, Z1 + a), (X1 + a, Y1 + a, Z1 - a), (X1 + a, Y1 - a, Z1 + a), (X1 - a, Y1 - a, Z1 + a), (X1 - a, Y1 + a, Z1 + a), (X1 + a, Y1 - a, Z1 - a), (X1 - a, Y1 + a, Z1 - a), and (X1 - a, Y1 - a, Z1 - a) is the preset center-of-gravity range corresponding to the refrigerator in the first open state. Here, a is a constant.
[0059] Furthermore, the preset center-of-gravity range corresponding to the refrigerator can be converted into a weight threshold.
[0060] Exemplarily, in the first state, the preset center-of-gravity range corresponding to the refrigerator is 0 to 15 Kg. That is, in the first state, items within 0 to 15 Kg can be placed into the target drawer. Specifically, the conversion relationship between the weight coordinates and the weight threshold needs to be set through a large number of experiments based on the actual refrigerator and is not limited here.
[0061] S304. The processor determines the working state of the electric lock device corresponding to the target drawer according to the determined center-of-gravity information and the preset center-of-gravity range.
[0062] Specifically, the determined center-of-gravity information is compared with the preset center-of-gravity range; according to the comparison result, the working state of the electric lock device corresponding to the target drawer is determined.
[0063] Optionally, the step of determining the working state of the electric lock device corresponding to the target drawer according to the determined center-of-gravity information and the preset center-of-gravity range includes: when the center-of-gravity information does not meet the preset center-of-gravity range, it is determined that the electric lock device corresponding to the target drawer is in the locked state; when the center-of-gravity information meets the preset center-of-gravity range, it is determined that the electric lock device corresponding to the target drawer is in the unlocked state.
[0064] In this embodiment, when the center-of-gravity information does not meet the preset center-of-gravity range, that is, the center-of-gravity information does not meet the safe range of the refrigerator's center of gravity, it can be determined that opening the target drawer may cause the refrigerator to tip over. At this time, it is determined that the electric lock device corresponding to the target drawer is in the locked state to fix the target drawer and prevent the user from opening the drawer. When the center-of-gravity information meets the preset center-of-gravity range, that is, the center-of-gravity information meets the safe range of the refrigerator's center of gravity, it can be determined that opening the target drawer will not cause the refrigerator to tip over. At this time, it is determined that the electric lock device corresponding to the target drawer is in the unlocked state to facilitate the user to open the target drawer.
[0065] S305. The processor controls the electric lock device to work according to the working state of the electric lock device to lock or unlock the target drawer.
[0066] By using the control method provided in the embodiments of the present disclosure, it is possible to determine the center-of-gravity information corresponding to the target drawer in the open state according to the weight and height of the target drawer, and then determine the preset center-of-gravity range of the refrigerator according to the open state of the target drawer. Furthermore, according to the determined center-of-gravity information and the preset center-of-gravity range, the working state of the electric lock device corresponding to the target drawer is determined, and the electric lock device is controlled to work to lock or unlock the target drawer, so as to limit the extractable state of the target drawer. By limiting the extractable state of the target drawer, the probability that the center of gravity of the refrigerator moves forward due to excessive extraction of the drawer or excessive weight of the extracted drawer, resulting in the refrigerator tilting forward, is reduced. In addition, compared with the related art, the present disclosure avoids the use of counterweights, thus reducing the transportation cost of the refrigerator, increasing the available storage space of the refrigerator, and improving the heat preservation effect of the refrigerator. In summary, the method provided by the present disclosure has higher practicability.
[0067] Combined with Figure 4 As shown in
[0068] S401, the processor obtains the weight and height of the target drawer corresponding to the opening signal.
[0069] S402, the processor determines the center-of-gravity information corresponding to the target drawer in the open state according to the weight and height of the target drawer.
[0070] S403, the processor determines the preset center-of-gravity range of the refrigerator according to the open state of the target drawer.
[0071] S404, the processor determines the working state of the electric lock device corresponding to the target drawer according to the determined center-of-gravity information and the preset center-of-gravity range.
[0072] S405, the processor controls the electric lock device to work according to the working state of the electric lock device to lock or unlock the target drawer.
[0073] S406, when the target drawer is in the open state, the processor obtains the weight change amount of the target drawer.
[0074] S407, when the weight change amount is greater than the preset value, the processor controls the electric lock device to operate so that the target drawer is in the locked state and issues an overweight reminder.
[0075] By using the control method provided in the embodiments of the present disclosure, it is possible to obtain the weight change of the target drawer in real time when the refrigerator is in the on state. And when the weight change is greater than the preset value, the electric lock device is timely controlled to operate so that the target drawer is in the locked state, and an overweight reminder is sent to alert the user. This can prevent the user from further pulling out the target drawer or storing items in the target drawer, which may cause the drawer to be pulled out too much or the pulled-out drawer to be too heavy, resulting in the center of gravity of the freezer moving forward and the probability of the freezer tilting forward.
[0076] Among them, for the preset value, the corresponding weight threshold can be obtained by converting the preset center of gravity range as the preset value; or it can be set by the technician according to the actual freezer, and the preset value is not limited here.
[0077] Combined with Figure 5 As shown, the embodiments of the present disclosure provide another control method for a freezer, including:
[0078] S501, the processor obtains the opening and closing state of the freezer door body.
[0079] S502, when the opening and closing state of the door body is the open state, the processor controls all electric lock devices to lock, so that all drawers are in the locked state.
[0080] S503, when the opening and closing state of the door body is the closed state, the processor controls all electric lock devices to unlock, so that all drawers are in the unlocked state.
[0081] S504, the processor obtains an opening signal.
[0082] S505, the processor obtains the weight and height of the target drawer corresponding to the opening signal.
[0083] S506, the processor determines the center of gravity information corresponding to the target drawer when it is in the open state according to the weight and height of the target drawer.
[0084] S507, the processor determines the preset center of gravity range of the freezer according to the open state of the target drawer.
[0085] S508, the processor determines the working state of the electric lock device corresponding to the target drawer according to the determined center of gravity information and the preset center of gravity range.
[0086] S509, the processor controls the electric lock device to work according to the working state of the electric lock device to lock or unlock the target drawer.
[0087] By using the control method provided in the embodiments of the present disclosure, it is possible to obtain the opening and closing state of the cold cabinet door body before obtaining the opening signal. When the opening and closing state of the door body is the open state, then control all the electric lock devices to lock, so that all the drawers are in the locked state, and obtain the opening signal. When the opening and closing state of the door body is the closed state, then control all the electric lock devices to unlock, so that all the drawers are in the unlocked state. When the electric lock device is in the locked state, it needs to connect the current and consume electrical energy. By limiting all the electric lock devices to unlock (the electric lock device does not connect the current) when the opening and closing state of the door body is the closed state, energy can be saved.
[0088] Optionally, when the opening and closing state of the door body is the open state, the control method further includes: obtaining the door body opening time in real time; when the door body opening time reaches the time threshold, controlling the electric lock device to operate so that the target drawer returns to its place and sending out an overtime reminder.
[0089] In this embodiment, by obtaining the door body opening time in real time when the opening and closing state of the door body is the open state. And when the door body opening time reaches the time threshold, controlling the electric lock device to operate so that the target drawer returns to its place and sending out an overtime reminder, to warn the user that the cold cabinet door body has been opened for too long and too much cold air in the cold cabinet has leaked, reminding the user to close the cold cabinet door in time to avoid affecting the freshness preservation effect of the items in the cold cabinet or causing a condensation phenomenon.
[0090] Combined Figure 6 As shown, the embodiments of the present disclosure provide a control device 60 for a cold cabinet, including a processor 600 and a memory 601. Optionally, the device 60 may further include a communication interface 602 and a bus 603. Among them, the processor 600, the communication interface 602, and the memory 601 can complete mutual communication through the bus 603. The communication interface 602 can be used for information transmission. The processor 600 can call the logical instructions in the memory 601 to execute the control method for the cold cabinet in the above embodiments.
[0091] In addition, when the logical instructions in the above-mentioned memory 601 are implemented in the form of a software functional unit and sold or used as an independent product, they can be stored in a computer-readable storage medium.
[0092] The memory 601, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as the program instructions / modules corresponding to the methods in the embodiments of the present disclosure. The processor 600 executes functional applications and data processing by running the program instructions / modules stored in the memory 601, that is, implements the control method for the cold cabinet in the above embodiments.
[0093] The memory 601 may include a program storage area and a data storage area. The program storage area may store an operating system and application programs required for at least one function. The data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 601 may include a high-speed random access memory and may also include a non-volatile memory.
[0094] As shown in combination with Figure 1 and Figure 2 This disclosure provides a refrigerator 1, including: a cabinet 10, a plurality of drawers 20, a plurality of electric lock devices 30, and the above control device 60 for the refrigerator. The cabinet 10 defines a storage compartment 110. The plurality of drawers 20 are arranged at intervals in the storage compartment 110 along the height direction of the cabinet 10. The plurality of electric lock devices 30 are arranged corresponding to the plurality of drawers 20. The electric lock device 30 is used to lock the drawer 20 to make it in a locked state, or release the lock on the drawer 20 to make it in an unlocked state. The control device 60 for the refrigerator as described in the above embodiment is installed on the cabinet 10 and is communicatively connected to the plurality of electric lock devices 30. The installation relationship described here not only includes being placed inside the cabinet 10, but also includes installation connections with other components of the refrigerator 1, including but not limited to physical connections, electrical connections, or signal transmission connections, etc. Those skilled in the art can understand that the control device 60 for the refrigerator can be adapted to a feasible refrigerator 1, thereby implementing other feasible embodiments.
[0095] Optionally, as shown in combination with Figure 1 and Figure 2 the electric lock device 30 includes: a magnet 310 provided on the drawer 20; an electromagnet 320 provided on the side wall of the cabinet 10 and communicatively connected to the control device 60 for the refrigerator.
[0096] In this embodiment, in the locked state of the electric lock device 30, the electromagnet 320 is energized, and an attractive force is generated between the electromagnet 320 and the magnet 310, so that the corresponding drawer 20 is in an immovable locked state. In the unlocked state of the electric lock device 30, the electromagnet 320 is de-energized, and there is no mutual force between the electromagnet 320 and the magnet 310, so that the corresponding drawer 20 is in a movable unlocked state. When the drawer 20 is in an open state, the electromagnet 320 can be energized and the current intensity of the energization can be increased, so that the attractive force between the electromagnet 320 and the magnet 310 is increased. Under the increased attractive force, the magnet 310 gradually moves towards the electromagnet 320, thereby driving the drawer 20 to return to its position, realizing the automatic return of the drawer 20.
[0097] Optionally, each drawer 20 is correspondingly provided with a plurality of electric lock devices 30. The plurality of electric lock devices 30 are arranged at intervals along the circumferential side of the drawer 20 on the side wall of the cabinet 10.
[0098] In this embodiment, a plurality of electric lock devices 30 are correspondingly arranged for each drawer 20 to facilitate achieving different opening states of the drawer 20. Exemplarily, the gravity center information of the freezer 1 corresponding to the plurality of opening states of the target drawer 20 is compared with a preset gravity center range. In the first state, the gravity center information of the freezer 1 satisfies the preset gravity center range; and in the second state, the gravity center information of the freezer 1 does not satisfy the preset gravity center range. Then, when the extraction length n of the drawer 20 satisfies 0 < n ≤ 0.3L, the freezer 1 will not be toppled. At this time, first control all the electric lock devices 30 of the target drawer 20 to be unlocked. The extraction length of the drawer 20 is obtained in real time. When the extraction length n of the drawer 20 reaches 0.3L, control the target electric lock device 30 to operate so that the target electric lock device 30 locks the drawer 20 to make it in a locked state. Specifically, L represents the depth of the freezer and / or the length of the drawer, n represents the extraction length of the drawer (i.e., the length of the part of the drawer located outside the storage room), and when the extraction length of the drawer is n, the remaining length of the drawer located inside the storage room is m, and m + n = L. The target electric lock device 30 refers to the electric lock device 30 arranged on the side wall of the box body 10 along the extraction direction of the drawer 20 and corresponding to the part of the drawer within the range of m.
[0099] Optionally, in combination with Figure 1 As shown, the freezer 1 further includes a door body 40 and a sensing switch. The door body 40 is pivotally installed on the box body 10 for opening or closing the storage room 110. The sensing switch is installed on the door body 40 for detecting the opening and closing state of the door body 40, and the sensing switch is communicatively connected to the control device 60 for the freezer.
[0100] Exemplarily, the sensing switch is a Hall switch.
[0101] Optionally, the drawer 20 includes a drawer handle; the freezer 1 further includes a touch sensor, and the touch sensor is arranged on the drawer handle for generating an opening signal.
[0102] Optionally, the box body 10 includes supporting rib tendons 120. Along the height direction of the freezer 1, the supporting rib tendons 120 are spaced on the side wall of the box body 10, and the supporting rib tendons 120 are used for supporting the drawer 20. The freezer 1 further includes a weight sensor 50, and the weight sensor 50 is arranged on the supporting rib tendon 120 and located between the supporting rib tendon 120 and the drawer 20.
[0103] Optionally, the freezer 1 further includes a distance sensor, which is arranged on the side wall of the box body for detecting the extraction length of the drawer.
[0104] Exemplarily, the distance sensor can be an infrared sensor and / or an ultrasonic sensor.
[0105] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, and the computer-executable instructions are configured to execute the above control method for a freezer.
[0106] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The foregoing storage medium may be a non-transitory storage medium, such as: a USB flash drive, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk, or an optical disc, etc., which are various media that can store program codes.
[0107] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process, and other changes. Embodiments merely represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. Moreover, the terms used in this application are only for describing embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" are intended to also include the plural forms. Similarly, as used in this application, the term "and / or" refers to any and all possible combinations including one or more of the associated listed items. Additionally, when used in this application, the term "comprise" and its variants "comprises" and / or "comprising" etc. mean the presence of the stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or groupings thereof. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, or device including the element. In this document, what each embodiment focuses on may be the differences from other embodiments, and the same or similar parts among the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, the relevant parts may refer to the description of the method part.
[0108] Those skilled in the art will realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner may depend on the specific application and design constraints of the technical solution. The skilled person can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the embodiments of the present disclosure. The skilled person can clearly understand that for the convenience and conciseness of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.
[0109] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Additionally, the couplings or direct couplings or communication connections shown or discussed with each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment. Additionally, in the embodiments of the present disclosure, the functional units can be integrated in one processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit.
[0110] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, a segment of a program, or a portion of code, which contains one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks may occur in a different order than noted in the accompanying drawings. For example, two consecutive blocks may in fact be executed substantially in parallel, or they may sometimes be executed in the reverse order, depending on the functions involved. In the description corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may in fact be executed substantially in parallel, or they may sometimes be executed in the reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.
Claims
1. A control method for a freezer, characterized in that, The refrigerator includes a plurality of drawers and a plurality of electric lock devices corresponding to the drawers. The electric lock devices are used to lock the drawers to make them in a locked state, or release the lock on the drawers to make them in an unlocked state. The control method includes: Obtaining the weight and height of the target drawer corresponding to the opening signal; Determining the center-of-gravity information corresponding to the target drawer in the open state according to the weight and height of the target drawer; Determining the preset center-of-gravity range of the refrigerator according to the open state of the target drawer; Determining the working state of the electric lock device corresponding to the target drawer according to the determined center-of-gravity information and the preset center-of-gravity range; Controlling the operation of the electric lock device according to the working state of the electric lock device to lock or unlock the target drawer.
2. The control method according to claim 1, wherein The step of determining the working state of the electric lock device corresponding to the target drawer according to the determined center-of-gravity information and the preset center-of-gravity range includes: Determining that the electric lock device corresponding to the target drawer is in a locked state when the center-of-gravity information does not meet the preset center-of-gravity range; Determining that the electric lock device corresponding to the target drawer is in an unlocked state when the center-of-gravity information meets the preset center-of-gravity range.
3. The control method according to claim 1 or 2, characterized in that, The step of determining the center-of-gravity information corresponding to the target drawer in the open state according to the weight and height of the target drawer includes: Determining the extraction length of the target drawer according to the open state of the target drawer; Determining a plurality of center-of-gravity information corresponding to a plurality of open states according to the weight, height of the target drawer and the extraction length corresponding to each open state.
4. The control method according to claim 1 or 2, characterized in that The step of determining the preset center-of-gravity range of the refrigerator according to the open state of the target drawer includes: Determining the extraction length of the target drawer in each open state; Determining the preset center-of-gravity range corresponding to each open state according to the extraction length, height of the target drawer and the weights of all drawers.
5. The control method according to claim 1 or 2, characterized in that The control method further includes: When the target drawer is in an open state, obtaining the weight change amount of the target drawer; When the weight change amount is greater than the preset value, controlling the operation of the electric lock device to make the target drawer in a locked state and sending an overweight reminder.
6. The control method according to claim 1 or 2, characterized in that, Before obtaining the opening signal, the control method further includes: Obtaining the opening and closing state of the refrigerator door body; When the opening and closing state of the door body is in an open state, controlling all electric lock devices to lock to make all drawers in a locked state; When the opening and closing state of the door body is in a closed state, controlling all electric lock devices to unlock to make all drawers in an unlocked state.
7. The control method according to claim 6, wherein When the opening and closing state of the door body is in an open state, the control method further includes: Obtaining the door body opening time in real time; When the door body opening time reaches the time threshold, controlling the operation of the electric lock device to make the target drawer return to its position and sending an overtime reminder.
8. A control device for a freezer, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the control method for the refrigerator as described in any one of claims 1 to 7 when running the program instructions.
9. A freezer, characterized in that, Including: A box body defining a storage compartment; A plurality of drawers spaced apart in the height direction of the box body and disposed in the storage compartment; A plurality of electric lock devices, the plurality of electric lock devices being correspondingly arranged with the plurality of drawers, and the electric lock devices being used to lock the drawers to make them in a locked state, or release the lock on the drawers to make them in an unlocked state; The control device for a freezer as claimed in claim 8 is installed in the cabinet and communicatively connected to a plurality of electric lock devices.
10. The freezer according to claim 9, characterized in that, The electric lock device comprises: a magnet disposed in the drawer; an electromagnet disposed on the side wall of the cabinet and communicatively connected to the control device for the freezer.