Refrigerator and refrigerator angle detection method

Abstract

The present application provides embodiments related to refrigerator technology, including a refrigerator and a refrigerator angle detection method. The refrigerator angle detection device includes: a first magnet, a second magnet, a magnet holder, and an arc-shaped cavity. The first and second magnets are fixed to the magnet holder, with the north pole of the first magnet and the south pole of the second magnet positioned oppositely on the upper and lower sides of the arc-shaped cavity. The door drives the magnet holder to rotate, causing the first and second magnets on the magnet holder to rotate together. Multiple coils are arranged within the arc-shaped cavity. The arrangement of the multiple coils within the arc-shaped cavity ensures that when the first and second magnets rotate to a target position, the coils at the target position within the arc-shaped cavity cut the magnetic flux lines between the north pole of the first magnet and the south pole of the second magnet, generating a first induced electromotive force. Based on the target position of the coils, a processor determines the door opening and closing angle and performs the target operation. This application can improve the accuracy of refrigerator door opening and closing angle detection.

Description

Technical Field

[0001] The embodiments of the present application relate to refrigerator technology, and more specifically, to a refrigerator and a refrigerator angle detection method. Background Art

[0002] With the rapid development of intelligent technology, the functions of household appliances such as refrigerators are becoming increasingly diverse. For example, in addition to traditional refrigerators with manual door openings, there are now refrigerators with automatic door opening positions. For refrigerators with electric door openings, flexible adjustment of the door opening position based on user needs plays a vital role in improving the user experience. The key to achieving flexible door opening position adjustment is the ability to accurately detect the door opening angle in real time. In other words, the ability to accurately detect the door opening angle is crucial. Summary of the Invention

[0003] The embodiments of the present application provide a refrigerator and a refrigerator angle detection method, which can improve the accuracy of detecting the opening and closing angles of the refrigerator door.

[0004] In a first aspect, an embodiment of the present application provides a refrigerator, comprising: a refrigerator body, a door body, a processor, and an angle detection device; the angle detection device comprises: a first magnet, a second magnet, a magnet fixing member, and an arc-shaped cavity; the first magnet and the second magnet are both fixed to the magnet fixing member, and the north pole of the first magnet and the south pole of the second magnet are arranged on the upper and lower sides of the arc-shaped cavity relative to each other;

[0005] The door body is opened or closed so that the magnet fixing member is driven to rotate, so that the first magnet and the second magnet on the magnet fixing member rotate together;

[0006] A plurality of coils are arranged in the arc-shaped cavity, and the plurality of coils are arranged at different positions; the plurality of coils are arranged in the arc-shaped cavity in such a manner that when the first magnet and the second magnet are rotated to a target position, the coil at the target position in the arc-shaped cavity cuts the magnetic flux lines between the north pole of the first magnet and the south pole of the second magnet, and generates a first induced electromotive force on both sides of the coil at the target position;

[0007] The coil is connected to the processor, and the processor is configured to:

[0008] determining a door opening and closing angle of the door body based on a target position of the coil generating the first induced electromotive force;

[0009] Based on the door opening and closing angles, a target operation is performed.

[0010] In some embodiments of the present application, the processor includes a plurality of pins, each of which corresponds to a plurality of coils arranged in the arc-shaped cavity, and the coils are connected to the corresponding pins;

[0011] The processor is further configured to:

[0012] The target position of the coil generating the first induced electromotive force is determined based on the pin receiving the first signal; the first signal is used to indicate that the coil connected to the pin generates the first induced electromotive force.

[0013] In some embodiments of the present application, the refrigerator further comprises: an amplifying device; the coil is connected to the corresponding pin via the amplifying device;

[0014] The amplifying device is configured to amplify the first induced electromotive force to obtain the first signal, and output the first signal to the pin corresponding to the coil.

[0015] In some embodiments of the present application, the amplifying device includes: a plurality of voltage comparators, the plurality of voltage comparators corresponding one-to-one to the plurality of coils arranged in the arc-shaped cavity, the coils being connected to the pins corresponding to the coils through the corresponding voltage comparators;

[0016] For the voltage comparator corresponding to any coil, the voltage comparator is configured as follows:

[0017] When the first induced electromotive force generated by the coil is greater than or equal to a preset electromotive force, the first induced electromotive force is amplified to obtain the first signal, and the first signal is output to the pin corresponding to the coil.

[0018] In some embodiments of the present application, the voltage comparator is further configured to:

[0019] When the induced electromotive force generated by the coil is less than the preset electromotive force, a second signal is output to the pin corresponding to the coil; the second signal is different from the first signal, and the second signal is used to indicate that the coil does not cut the magnetic flux lines between the N pole of the first magnet and the S pole of the second magnet.

[0020] In some embodiments of the present application, the first signal is a first-level signal, and the second signal is a second-level signal; the level of the first-level signal is higher than the level of the second-level signal.

[0021] In some embodiments of the present application, the box body is connected to the door body via a door body connector, and the door body connector includes: a door body shaft; when the door body is opened or closed, the door body shaft rotates;

[0022] The magnet fixing part is connected to the door body rotating shaft so that when the door body rotating shaft rotates, the magnet fixing part is driven to rotate.

[0023] In some embodiments of the present application, the door body connecting member also includes: a door body support seat, which is arranged under the door body and fixed on the box body; the door body rotating shaft passes through the opening on the door body support seat and is connected to the box body; the arc-shaped cavity is fixed on the inner side wall of the opening of the door body support seat.

[0024] In some embodiments of the present application, the refrigerator further includes: a driving member connected to the processor, and the processor is further configured to:

[0025] Get the target door opening angle;

[0026] The performing of a target operation based on the door opening and closing angle includes:

[0027] In response to an automatic door opening instruction, based on the door opening and closing angle, when the door body is automatically opened to the target door opening angle by the driving member, the door body is controlled by the driving member to stop opening;

[0028] or,

[0029] The performing of a target operation based on the door opening and closing angle includes:

[0030] In response to an automatic door closing instruction, the door body is controlled to automatically close based on the door opening and closing angle by the driving member, and when it is determined that the door body is closed based on the door opening and closing angle, the door body is controlled to stop closing by the driving member.

[0031] In a second aspect, the present application provides a refrigerator angle detection method, the refrigerator comprising: a refrigerator body, a door body, a processor, and an angle detection device; the angle detection device comprising: a first magnet, a second magnet, a magnet fixing member, and an arc-shaped cavity; the first magnet and the second magnet are both fixed to the magnet fixing member, and the north pole of the first magnet and the south pole of the second magnet are arranged on the upper and lower sides of the arc-shaped cavity relative to each other;

[0032] The door body is opened or closed so that the magnet fixing member is driven to rotate, so that the first magnet and the second magnet on the magnet fixing member rotate together;

[0033] A plurality of coils are arranged in the arc-shaped cavity, and the plurality of coils are arranged at different positions; the plurality of coils are arranged in the arc-shaped cavity in such a manner that when the first magnet and the second magnet are rotated to a target position, the coil at the target position in the arc-shaped cavity cuts the magnetic flux lines between the north pole of the first magnet and the south pole of the second magnet, and generates a first induced electromotive force on both sides of the coil at the target position;

[0034] The coil is connected to the processor, and the method is applied to the processor, the method comprising:

[0035] determining a door opening and closing angle of the door body based on a target position of the coil generating the first induced electromotive force;

[0036] Based on the door opening and closing angles, a target operation is performed.

[0037] The refrigerator and refrigerator angle detection method provided by the present application can drive the magnetic fixing part of the angle detection device to rotate during the opening or closing process of the refrigerator door, thereby causing the first magnet and the second magnet on the magnetic fixing part to rotate. Because the N pole of the first magnet and the S pole of the second magnet are relatively arranged on the upper and lower sides of the arc cavity, the coil at the target position to which the first magnet and the second magnet rotate can cut the magnetic flux lines between the N pole of the first magnet and the S pole of the second magnet, so that a first induced electromotive force is generated on both sides of the coil at the target position. Through the above method, the angle detection device can characterize the door opening and closing angle of the door body by the target position where the coil that generates the first induced electromotive force is located by cutting the magnetic flux lines between the N pole of the first magnet and the S pole of the second magnet, and then the processor can perform the target operation based on the door opening and closing angle. Through the above method, the door opening and closing angle of the refrigerator door body can be detected in real time by the target position where the coil that generates the first induced electromotive force is located. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the implementation methods in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0039] Figure 1 A schematic structural diagram of a refrigerator provided in this application;

[0040] Figure 2 A schematic diagram of a connection method between the coil 19 and the processor 13 provided in this application;

[0041] Figure 3 A schematic diagram of another connection method between the coil 19 and the processor 13 provided in this application;

[0042] Figure 4 A schematic diagram of another connection method between the coil 19 and the processor 13 provided in this application;

[0043] Figure 5 This is a schematic diagram of the connection between the magnetic fixing member 17 and the door body shaft 51 provided in the present application;

[0044] Figure 6 A schematic structural diagram of another refrigerator provided in this application;

[0045] Figure 7 A schematic structural diagram of another refrigerator provided in this application;

[0046] Figure 8 A flowchart of a refrigerator angle detection method provided in this application;

[0047] Figure 9 A flowchart of another refrigerator angle detection method provided by this application;

[0048] Figure 10 This is a structural schematic diagram of a refrigerator angle detection device provided in this application. DETAILED DESCRIPTION

[0049] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0050] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0051] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0052] With the rapid development of intelligent technology, the functions of household appliances such as refrigerators are becoming increasingly diverse. For example, in addition to traditional refrigerators with manual door openings, there are now refrigerators with automatic door opening positions, also known as refrigerators with electric door openings. For refrigerators with electric door openings, the ability to flexibly adjust the door opening position according to user needs plays a vital role in improving the user experience. The key to achieving flexible door opening position adjustment is the ability to accurately detect the door opening angle in real time. In other words, the ability to accurately detect the door opening angle is crucial.

[0053] Currently, existing angle detection methods primarily use sliding rheostats or other angle detection devices to detect the opening and closing angles of refrigerator doors. However, due to differences between different sliding rheostats, such as the resistance corresponding to the same sliding position, existing methods often require tedious pre-calibration of the angle detection device for each refrigerator before use.

[0054] Considering the above problems with existing methods for determining the opening and closing angle of refrigerator doors, this application proposes a method for characterizing the opening and closing angle of refrigerator doors by coil positions. With this method, the opening and closing angle of refrigerator doors can be detected in real time.

[0055] The following detailed description of the technical solution of the present application is provided in conjunction with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0056] Figure 1 This is a schematic diagram of the structure of a refrigerator provided in this application. Figure 1 As shown, the refrigerator may include: a cabinet 11, a door 12, a processor 13, and an angle detection device 14. The angle detection device 14 may include: a first magnet 15, a second magnet 16, a magnet fixing member 17, and an arc-shaped cavity 18. The first magnet 15 and the second magnet 16 are both fixed to the magnet fixing member 17, and the north pole of the first magnet 15 and the south pole of the second magnet 16 are arranged on the upper and lower sides of the arc-shaped cavity 18.

[0057] The opening or closing process of the door body 12 can drive the magnet fixing member 17 to rotate, so that the first magnet 15 and the second magnet 16 on the magnet fixing member 17 rotate together.

[0058] A plurality of coils 19 may be arranged in the arc-shaped cavity 18, and the plurality of coils 19 may be arranged in different positions. The arrangement of the plurality of coils 19 in the arc-shaped cavity 18 is such that when the first magnet 15 and the second magnet 16 are rotated to a target position, the coil 19 at the target position in the arc-shaped cavity 18 cuts the magnetic flux lines between the north pole of the first magnet 15 and the south pole of the second magnet 16, thereby generating a first induced electromotive force on both sides of the coil 19 at the target position.

[0059] Optionally, the box body 11 may be provided with at least one compartment. The refrigerator may include, for example, a refrigeration compartment and / or a freezer compartment, which is not limited in the present application.

[0060] It should be understood that this application does not limit the number of doors 12 included in the refrigerator. For example, the refrigerator may include at least one door 12. Taking the example of a refrigerator including multiple doors 12, as one possible implementation, each door 12 may be provided with a corresponding angle detection device 14. Alternatively, as another possible implementation, one or more of the multiple doors 12 may be provided with the angle detection device 14.

[0061] Exemplarily, the first magnet 15 and the second magnet 16 can be, for example, magnets. It should be understood that the present application does not limit the upper and lower relationship between the first magnet 15 and the second magnet 16. For example, the first magnet 15 can be arranged above the arc-shaped cavity 18, with the N pole of the first magnet 15 facing downward, opposite to the S pole of the second magnet 16 arranged below the arc-shaped cavity 18 (the S pole of the second magnet 16 facing upward).

[0062] The magnetic fixing member 17 is used to fix the first magnet 15 and the second magnet 16, and enables the door body 12 to drive the magnetic fixing member 17 to rotate during the door opening and closing process, thereby causing the first magnet 15 and the second magnet 16 on the magnetic fixing member 17 to rotate. It should be understood that the present application does not limit the material of the magnetic fixing member 17, nor the fixing method between the magnetic fixing member 17 and the first magnet 15 and the second magnet 16. For example, the first magnet 15 and the second magnet 16 can be fixed to the magnetic fixing member 17 by a snap-fit ​​fixing method.

[0063] In some embodiments, the shape of the arc cavity 18 can be the same as the shape of the rotation trajectory of the first magnet 15 and the second magnet 16. Therefore, in some embodiments, the arc cavity 18 can also be called a magnet slide rail. It should be understood that the arc cavity 18 can be a complete circular cavity, or called an annular cavity. Alternatively, the arc cavity 18 can also be a section of an arc, that is, it can be a non-complete circular cavity. Optionally, the length of the arc cavity 18 can be related to the maximum value that the door opening and closing angle of the refrigerator door body 12 can reach. For example, the larger the maximum value that the door opening and closing angle of the refrigerator door body 12 can reach, the longer the length of the arc cavity 18 can be. The smaller the maximum value that the door opening and closing angle of the refrigerator door body 12 can reach, the shorter the length of the arc cavity 18 can be. It should be understood that, Figure 1 The angle detection device 14 is only described illustratively by taking the arc cavity 18 as an annular cavity as an example.

[0064] Optionally, the material of the arc-shaped cavity 18 can be, for example, any existing material that does not shield the magnetic flux lines between the N pole of the first magnet 15 and the S pole of the second magnet 16 .

[0065] In some embodiments, the plurality of coils 19 may be evenly arranged in the arc-shaped cavity 18 according to the aforementioned arrangement, for example, to improve the smoothness of the angle detection result.

[0066] The coil 19 may be connected to the processor 13. Optionally, the processor 13 may be any device with processing capability of the refrigerator, such as a microcontroller unit (MCU).

[0067] The processor 13 may be configured, for example, to determine the door opening and closing angle of the door body 12 based on the target position of the coil 19 generating the first induced electromotive force, and then perform a target operation based on the door opening and closing angle.

[0068] The process of opening or closing the door body 12 drives the magnet fixing part 17 to rotate, thereby causing the first magnet 15 and the second magnet 16 to rotate. Therefore, when the door body 12 is opened or closed, the first magnet 15 and the second magnet 16 rotate to the position where the coil 19 can cut the magnetic flux lines between the north pole of the first magnet 15 and the south pole of the second magnet 16, and the coil 19 at this position generates the above-mentioned first induced electromotive force. In other words, when the angle of opening and closing of the door body 12 changes, the position of the coil 19 that cuts the magnetic flux lines between the north pole of the first magnet 15 and the south pole of the second magnet 16 also changes. Therefore, the target position of the coil 19 that generates the above-mentioned first induced electromotive force can be used to represent the opening and closing angle of the door body 12.

[0069] Exemplarily, the processor 13 may pre-store a mapping relationship between the position of the coil 19 and the door opening and closing angle of the door body 12. The processor 13 may determine the door opening and closing angle of the door body 12 based on the target position of the coil 19 that generates the first induced electromotive force and the mapping relationship between the position of the coil 19 and the door opening and closing angle of the door body 12. Exemplarily, the mapping relationship between the position of the coil 19 and the door opening and closing angle of the door body 12 may be shown in Table 1 below:

[0070] Table 1

[0071] Position of coil 19 Door opening and closing angle Position 1 Angle 1 Position 2 Angular 2 Position 3 Angular 3 … …

[0072] For example, assuming that the target position of the coil 19 generating the first induced electromotive force is position 2, based on the mapping relationship shown in Table 1, the processor 13 can determine that the door opening and closing angle of the door body 12 is angle 2.

[0073] Optionally, the present application does not limit the above-mentioned target operation. The target operation can refer to any operation performed by an existing refrigerator based on the door opening and closing angle. For example, the target operation can be to adjust the brightness of the light in the refrigerator (i.e., the processor 13 can adjust the brightness of the light in the refrigerator based on the door opening and closing angle of the refrigerator), control the speed of automatic door opening and closing (i.e., the processor 13 can adjust the speed of automatic door opening and closing based on the door opening and closing angle of the refrigerator), or determine whether there is an obstacle during the automatic door opening and closing process (for example, during the automatic door opening and closing process, if the door body 12 maintains a constant door opening and closing angle, it is determined that the door body 12 encounters an obstacle during the door opening and closing process), etc., which will not be repeated here.

[0074] In this embodiment, when the refrigerator door 12 is opened or closed, it can drive the magnet holder 17 of the angle detection device 14 to rotate, thereby causing the first magnet 15 and the second magnet 16 on the magnet holder 17 to rotate. Because the north pole of the first magnet 15 and the south pole of the second magnet 16 are positioned relative to each other on the upper and lower sides of the arc-shaped cavity 18, the coil 19 at the target position to which the first and second magnets 15, 16 rotate can cut the magnetic flux lines between the north pole of the first magnet 15 and the south pole of the second magnet 16, generating a first induced electromotive force on both sides of the coil 19 at the target position. Through the above method, the angle detection device 14 can detect the opening and closing angle of the door 12 by measuring the target position of the coil 19 where the first induced electromotive force is generated by cutting the magnetic flux lines between the north pole of the first magnet 15 and the south pole of the second magnet 16. The processor 13 can then perform the target operation based on this opening and closing angle. Through the above method, the opening and closing angle of the refrigerator door 12 can be detected in real time by measuring the target position of the coil 19 where the first induced electromotive force is generated.

[0075] The following describes in detail how to determine the target position of the coil 19 that generates the first induced electromotive force (i.e., the coil 19 that cuts the magnetic flux lines between the N pole of the first magnet 15 and the S pole of the second magnet 16):

[0076] Figure 2 This is a schematic diagram of a connection method between a coil 19 and a processor 13 provided in this application. Figure 2 As shown, as a possible implementation, the processor 13 may include a plurality of pins 20 . The plurality of pins 20 correspond one-to-one to the plurality of coils 19 arranged in the arc-shaped cavity 18 . The coils 19 may be connected to the corresponding pins 20 .

[0077] It should be understood that the present application does not limit whether the processor 13 further includes pins 20 connected to other components (other components of the refrigerator except the coil 19 ).

[0078] For example, taking N (or N turns) of coils 19 arranged within the arc-shaped cavity 18 as an example, the processor 13 includes N of the aforementioned pins 20. Here, N is an integer greater than 1. It should be understood that this application does not limit the connection method between the coils 19 and the pins 20 of the processor 13.

[0079] In some embodiments, the plurality of pins 20 may be integrated into the processor 13 . Alternatively, the plurality of pins 20 may be a plurality of pins 20 of a pin 20 expansion module externally connected to the processor 13 .

[0080] The processor 13 may also be configured to determine a target position of the coil 19 generating the first induced electromotive force based on the pin 20 receiving the first signal. The first signal may be used to indicate that the coil 19 connected to the pin 20 generates the first induced electromotive force. In other words, the first signal may be used to indicate that the coil 19 connected to the pin 20 is the coil 19 that cuts the magnetic flux lines between the north pole of the first magnet 15 and the south pole of the second magnet 16.

[0081] For example, the processor 13 may store the pin 20 identifiers of the plurality of pins 20. For example, the processor 13 may use the pin 20 identifier of the pin 20 that received the first signal as the target position of the coil 19 that generates the first induced electromotive force. In other words, the processor 13 may use the pin 20 identifier of the pin 20 that received the first signal to represent the target position of the coil 19 that generates the first induced electromotive force.

[0082] Alternatively, the processor 13 may also pre-store a mapping relationship between the pin 20 identifier and the position identifier, for example. The processor 13 may determine the position identifier corresponding to the pin 20 identifier of the pin 20 that received the first signal based on the pin 20 identifier of the pin 20 that received the first signal and the mapping relationship between the pin 20 identifier and the position identifier. The processor 13 may use the position identifier to represent the target position of the coil 19 that generates the first induced electromotive force.

[0083] Through the above method, the processor 13 can determine the target position of the coil 19 that generates the above-mentioned first electromotive force based on whether the pin 20 connected to the coil 19 receives the first signal, laying the foundation for subsequently determining the opening and closing angle of the refrigerator door body 12 based on the target position.

[0084] Figure 3 This is a schematic diagram of another connection method between the coil 19 and the processor 13 provided in this application. Figure 3 As shown, as another possible implementation, the refrigerator may further include: an amplifying device 31.

[0085] The coil 19 can be connected to the corresponding pin 20 via an amplifying device 31 .

[0086] For example, for any coil 19 among the plurality of coils 19, the coil 19 can be electrically connected to the amplifier 31. The amplifier 31 can be electrically connected to the pin 20 corresponding to the coil 19.

[0087] The amplifying device 31 may be configured to amplify the first induced electromotive force to obtain the first signal, and output the first signal to the pin 20 corresponding to the coil 19 .

[0088] Exemplarily, the first signal may be a level signal.

[0089] Optionally, the amplifying device 31 may refer to any existing voltage amplifier, which is not limited in this application. In some embodiments, the plurality of coils 19 may be connected to the same voltage amplifier, or each coil 19 may correspond to an independent voltage amplifier.

[0090] Optionally, the amplifying device 31 may amplify the first induced electromotive force at a preset amplification factor to obtain the first signal. The amplification factor may be related to the configuration of the amplifying device 31. Optionally, the voltage value of the first signal obtained by amplifying the first induced electromotive force may be within an operating voltage range that the processor 13 can withstand, to avoid damage to the processor 13.

[0091] Through the above method, the first induced electromotive force is amplified by the amplifying device 31 and then output to the pin 20 of the processor 13, which reduces the possibility that the processor 13 cannot detect the first induced electromotive force due to it being too small, and expands the range of the induced electromotive force output by the angle detection device 14 to the processor 13, thereby improving the accuracy of the processor 13 in determining the opening and closing angle of the refrigerator door body 12 through the angle detection device 14.

[0092] The amplifying device 31 is described in detail below:

[0093] Figure 4 This is a schematic diagram of another connection method between the coil 19 and the processor 13 provided in this application. Figure 4 As shown, in some embodiments, the amplifying device 31 may include: a plurality of voltage comparators 41. The plurality of voltage comparators 41 may correspond one-to-one to the plurality of coils 19 arranged in the arc-shaped cavity 18. The coils 19 may be connected to the corresponding pins 20 of the coils 19 via the corresponding voltage comparators 41.

[0094] For example, taking N (or N turns) of coils 19 arranged in the arc-shaped cavity 18 as an example, the amplifying device 31 may include N voltage comparators 41 as described above. Here, N is an integer greater than 1. For example, the coils 19 and the voltage comparators 41 may be electrically connected, for example.

[0095] For the voltage comparator 41 corresponding to any of the above-mentioned coils 19, the voltage comparator 41 can be configured, for example, to amplify the first induced electromotive force when the first induced electromotive force generated by the coil 19 is greater than or equal to a preset electromotive force, obtain the above-mentioned first signal, and output the first signal to the pin 20 corresponding to the coil 19.

[0096] Exemplarily, the preset electromotive force may be related to the model of the voltage comparator 41 .

[0097] Optionally, the voltage comparator 41 determines the magnitude relationship between the first induced electromotive force and the preset electromotive force, and amplifies the first induced electromotive force to obtain the first signal. For example, the implementation method of any existing voltage comparator 41 can be referred to, and will not be repeated here.

[0098] Optionally, the above-mentioned first induced electromotive force is greater than or equal to the preset electromotive force, indicating that the first induced electromotive force is the induced electromotive force generated by the coil 19 between the first magnet 15 and the second magnet 16 cutting the magnetic flux lines, which ensures the accuracy of determining the target position of the coil 19.

[0099] Through the above method, each coil 19 can be connected to a corresponding voltage comparator 41. The voltage comparator 41 is used to amplify the first induced electromotive force that is greater than or equal to the preset electromotive force, ensuring that the voltage comparator 41 amplifies the induced electromotive force generated by the coil 19 between the first magnet 15 and the second magnet 16 to obtain a first signal, ensuring that the processor 13 can determine the target position of the coil 19.

[0100] In some embodiments, the voltage comparator 41 may further output a second signal to the pin 20 corresponding to the coil 19 when the induced electromotive force generated by the coil 19 is less than a preset electromotive force.

[0101] The second signal is different from the first signal and can be used to indicate that the coil 19 does not cut the magnetic flux lines between the N pole of the first magnet 15 and the S pole of the second magnet 16 .

[0102] When the induced electromotive force generated by the above-mentioned coil 19 is smaller than the preset electromotive force, it means that the magnetic flux lines cut by the coil 19 are magnetic flux lines that are farther away from the first magnet 15 and the second magnet 16, that is, the position of the coil 19 is not the position where the first magnet 15 and the second magnet 16 pass, so the position of the coil 19 is not the target position.

[0103] Through the above method, the voltage comparator 41 can output a second signal to the pin 20 corresponding to the coil 19 when the induced electromotive force generated by the coil 19 is less than the preset electromotive force, which is used to indicate that the coil 19 has not cut the magnetic flux lines between the N pole of the first magnet 15 and the S pole of the second magnet 16, thereby eliminating the influence of the magnetic flux lines far away from the first magnet 15 and the second magnet 16 on the coil 19, and ensuring that the target position of the coil 19 determined by the processor 13 is the position of the coil 19 where the first magnet 15 and the second magnet 16 actually pass, further improving the accuracy of the target position determination, and thus improving the accuracy of determining the opening and closing angles of the door body 12 based on the target position.

[0104] Optionally, taking the first signal as a first-level signal as an example, the second signal may be a second-level signal, wherein the level of the first-level signal may be higher than the level of the second-level signal. In other words, the first signal may be a high-level signal, and the second signal may be a low-level signal.

[0105] In some embodiments, the voltage comparator 41 can, for example, continuously output the second signal to the pin 20 corresponding to the coil 19 when the induced electromotive force generated by the coil 19 is less than the preset electromotive force, and convert the second signal into the first signal when the induced electromotive force generated by the coil 19 is the first induced electromotive force, that is, the first induced electromotive force is greater than or equal to the preset electromotive force, so as to amplify the first induced electromotive force to obtain the first signal, and output the first signal to the pin 20 corresponding to the coil 19.

[0106] The connection relationship between the angle detection device 14 and the refrigerator is exemplarily described below:

[0107] As a possible implementation, the box body 11 and the door body 12 may be connected via a door body connector, for example. The door body connector may include a door body shaft 51. The door body shaft 51 may rotate during the opening or closing process of the door body 12.

[0108] It should be understood that the specific structure of the above-mentioned door connector and whether it includes other components, etc. can refer to any existing implementation method of the door connector between the refrigerator door 12 and the box body 11, and will not be repeated here.

[0109] The magnetic fixing member 17 of the angle detection device 14 may be connected to the door shaft 51 , for example, so that when the door shaft 51 rotates, the magnetic fixing member 17 is driven to rotate. Figure 5 This is a schematic diagram of the connection between the magnetic fixing member 17 and the door body shaft 51 provided in this application. Figure 5 As shown, the magnet fixing member 17 can be connected to the door body shaft 51. That is, when the door body 12 is opened or closed, the door body shaft 51 can rotate, thereby driving the magnet fixing member 17 connected to the door body shaft 51 to rotate, that is, the first magnet 15 and the second magnet 16 on the magnet fixing member 17 can rotate, so that the coil 19 in the arc cavity 18 cuts the magnetic flux lines between the north pole of the first magnet 15 and the south pole of the second magnet 16.

[0110] Through the above method, the rotation of the door body shaft 51 can drive the rotation of the magnet fixing part 17, laying the foundation for ensuring that the coil 19 at the target position cuts the magnetic flux lines between the N pole of the first magnet 15 and the S pole of the second magnet 16.

[0111] As another possible implementation, the magnet fixing member 17 can also be directly connected to the first position of the refrigerator door 12. The first position and the connection between the magnet fixing member 17 and the refrigerator door 12 can ensure that during the opening and closing process of the door 12, the magnet fixing member 17 changes with the opening and closing angle of the door 12, so that the magnet fixing member 17 rotates, that is, the first magnet 15 and the second magnet 16 rotate, and then the coils 19 at different positions in the arc cavity 18 cut the magnetic flux lines between the N pole of the first magnet 15 and the S pole of the second magnet 16.

[0112] Optionally, the position of the arc cavity 18 may be fixed and immutable. As a possible implementation, the arc cavity 18 may be connected to the refrigerator body 11, for example.

[0113] Alternatively, as another possible implementation, the door body connector further includes a door body support seat 61 as an example, wherein the door body support seat 61 can be arranged below the door body 12 and fixed on the box body 11. The door body shaft 51 can pass through the opening on the door body support seat 61 and be connected to the box body 11.

[0114] Figure 6 This is a schematic diagram of the structure of another refrigerator provided by this application. Figure 6 As shown, the door support seat 61 can be arranged under the door body 12 and fixed on the box body 11.

[0115] The arc-shaped cavity 18 can be fixed on the inner side wall of the opening of the door support seat 61 , for example.

[0116] It should be understood that the arc cavity 18 can be arranged in the same plane as the door support seat 61, or in different planes. In some embodiments, the arc cavity 18 can be embedded in the inner side wall of the opening of the door support seat 61, for example.

[0117] Through the above method, the arc cavity 18 can be fixed on the door body support seat 61, and by fixing the arc cavity 18 on the inner wall of the above-mentioned opening of the door body support seat 61, the first magnet 15 and the second magnet 16 on the magnet fixing part 17 driven by the door body rotating shaft 51 passing through the opening can move along the shape of the arc cavity 18, ensuring that as the opening and closing angle of the door body 12 changes, the coils 19 at different positions in the arc cavity 18 can cut the magnetic lines of force between the N pole of the first magnet 15 and the S pole of the second magnet 16.

[0118] Figure 7 This is a schematic diagram of the structure of another refrigerator provided by this application. Figure 7As shown, as a possible implementation, the refrigerator may further include a driver 71. The driver 71 may be connected to the processor 13. The processor 13 may also execute a target operation corresponding to the door opening and closing angle through the driver 71.

[0119] For example, the processor 13 may first obtain the target door opening angle.

[0120] Optionally, the processor 13 may obtain the target door opening angle by referring to any existing refrigerator processor 13 obtaining the target door opening angle of the refrigerator door 12. For example, the processor 13 may receive the target door opening angle input by the user via an application programming interface (API), a voice receiving device, or a graphical user interface (GUI).

[0121] Then, the processor 13 can respond to the automatic door opening instruction and, based on the opening and closing angle of the refrigerator door body 12, control the door body 12 to automatically open to the above-mentioned target door opening angle through the above-mentioned driving member 71, and then control the door body 12 to stop opening through the driving member 71.

[0122] Optionally, the implementation method of controlling the automatic opening of the door body 12 by the driving member 71 and the implementation method of controlling the door body 12 to stop opening by the driving member 71 can refer to the driving member 71 configured in any existing refrigerator with automatic door opening and closing function, and will not be repeated here.

[0123] Through the above method, the opening and closing angle of the refrigerator door 12 is detected based on the angle detection device 14 including the first magnet 15 and the second magnet 16, and based on the opening and closing angle detected by the angle detection device 14, the refrigerator door 12 is automatically controlled to open and stop opening.

[0124] In some embodiments, the processor 13 can also, for example, respond to an automatic door closing instruction and control the door body 12 to automatically close based on the opening and closing angle of the refrigerator door body 12 through the above-mentioned driving member 71, and when it is determined that the door body 12 is closed based on the opening and closing angle, the door body 12 is controlled to stop closing through the above-mentioned driving member 71.

[0125] Optionally, the implementation method of controlling the automatic closing of the door body 12 by the driving member 71 and the implementation method of controlling the door body 12 to stop continuing to close by the driving member 71 can refer to any existing driving member 71 configured for a refrigerator with an automatic door opening and closing function, and will not be repeated here.

[0126] Exemplarily, the processor 13 may determine that the door body 12 is closed when it is determined based on the door opening and closing angle that the door opening and closing angle is less than a preset door closing angle. The preset door closing angle may be pre-stored in the processor 13, for example.

[0127] Through the above method, the opening and closing angle of the refrigerator door 12 is detected based on the angle detection device 14 including the first magnet 15 and the second magnet 16, and based on the opening and closing angle detected by the angle detection device 14, the refrigerator door 12 is automatically closed and stopped from closing.

[0128] Figure 8 Schematic diagram of a flow chart of a refrigerator angle detection method provided by this application. Optionally, the execution subject of the refrigerator angle detection method can be the processor 13 of the refrigerator as described in any of the above embodiments. Figure 8 As shown, the method may include the following steps:

[0129] S101 : Determine the opening and closing angle of the door body 12 based on the target position of the coil 19 generating the first induced electromotive force.

[0130] As mentioned above, the first induced electromotive force is generated on both sides of the coil 19 at the target position in the arc-shaped cavity 18 included in the angle detection device 14, when the coil 19 at the target position cuts the magnetic flux lines between the north pole of the first magnet 15 and the south pole of the second magnet 16. The target position is the target position to which the first magnet 15 and the second magnet 16 on the magnet holder 17 rotate together when the door body 12 is opened or closed, which drives the magnet holder 17 to rotate.

[0131] S102: Execute a target operation based on the door opening and closing angle.

[0132] The refrigerator angle detection method provided in the embodiment of the present application has similar implementation principles and technical effects, which will not be repeated here.

[0133] Taking the processor 13 as the MCU of a refrigerator as an example, Figure 9 This is a flow chart of another refrigerator angle detection method provided by this application. Figure 9 As shown, the MCU may include N pins 20, namely pin 201, pin 202, ..., pin 20N. The arc-shaped cavity 18 of the angle detection device 14 may include N turns of coil 19, namely coil 191, coil 192, ..., coil 19N. The signal processing may refer to amplifying the first induced electromotive force greater than or equal to the preset electromotive force by the aforementioned voltage amplifier.

[0134] The arc cavity 18 is fixed. Inside the arc cavity 18 are N evenly spaced coils 19. Each coil 19 has a separate voltage comparator 41 and corresponds one-to-one with the MCU pin 20. Magnets with N and S polarities are distributed on the upper and lower sides of the slide rail. The magnets can be fixed on the magnet fixing member 17 and can move along the arc cavity 18 under the drive of the magnet fixing member 17. Figure 9 As shown, the rotation of the door body 12 can drive the rotating shaft (the magnet fixing part 17 connected to the door body rotating shaft 51) of the electromagnetic locator (i.e. the aforementioned angle detection device 14) to rotate, thereby driving the first magnet 15 and the second magnet 16 to move along the arc cavity 18.

[0135] The magnet fixing part 17 is connected to the door shaft 51 (i.e., the door shaft) of the refrigerator. The rotation of the door will drive the magnet to move along the arc cavity 18, and cause the coil 19 inside the arc cavity 18 to cut the magnetic flux lines. According to Lenz's law, an induced electromotive force is generated in the coil 19. The induced electromotive force generates a digital signal through the voltage comparator 41 and outputs the information to the MCU. When the MCU detects a low level, it means that the magnet has not moved to this position, that is, the door body 12 has not rotated to the angle corresponding to this position. When the MCU detects a high level, it means that the magnet is passing through the coil 19, that is, the door opening and closing angle corresponding to the target position of the coil 19 is the opening angle of the door body 12 at that moment.

[0136] In this embodiment, the above-mentioned refrigerator angle detection method can be applied to a refrigerator with an electric door opening function, for example. By using this method that can accurately detect the door opening and closing angle of the door body 12 in real time, the accuracy of the electric door opening and closing (i.e., automatic door opening and closing) control is improved.

[0137] Figure 10 This is a schematic diagram of the structure of a refrigerator angle detection device provided by this application. Optionally, the refrigerator angle detection device can be applied to the processor of the refrigerator as described in any of the above embodiments. Figure 10 As shown, the device includes: a determination module 111 and an execution module 112.

[0138] The determination module 111 is configured to determine an opening and closing angle of the door body based on a target position of the coil that generates the first induced electromotive force.

[0139] The execution module 112 is configured to execute a target operation based on the door opening and closing angle.

[0140] The refrigerator angle detection device provided in the embodiment of the present application can execute the refrigerator angle detection method in the above method embodiment, and its implementation principle and technical effect are similar, which will not be described in detail here. Figure 10 The division of the modules shown is only a schematic illustration, and this application does not limit the division of the modules and the naming of the modules.

[0141] The present application also provides a computer-readable storage medium, which may include: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes. Specifically, the computer-readable storage medium stores program instructions, and the program instructions are used for the methods in the above embodiments.

[0142] The present application also provides a program product, the program product including execution instructions stored in a readable storage medium. At least one control module of a display device can read the execution instructions from the readable storage medium, and at least one control module executes the execution instructions to cause the display device to implement the refrigerator angle detection method provided in the various embodiments described above.

[0143] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0144] For ease of explanation, the above description has been made with reference to specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations are possible. The above embodiments are selected and described to better explain the principles and practical applications, so that those skilled in the art can better utilize the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that: The refrigerator includes: a cabinet, a door, a processor, and an angle detection device; the angle detection device includes: a first magnet, a second magnet, a magnet fixing member, and an arc-shaped cavity; the first magnet and the second magnet are both fixed to the magnet fixing member, and the north pole of the first magnet and the south pole of the second magnet are arranged oppositely on the upper and lower sides of the arc-shaped cavity; The door body is opened or closed so that the magnet fixing member is driven to rotate, so that the first magnet and the second magnet on the magnet fixing member rotate together; A plurality of coils are arranged in the arc-shaped cavity, and the plurality of coils are arranged at different positions; the plurality of coils are arranged in the arc-shaped cavity in such a manner that when the first magnet and the second magnet are rotated to a target position, the coil at the target position in the arc-shaped cavity cuts the magnetic flux lines between the north pole of the first magnet and the south pole of the second magnet, and generates a first induced electromotive force on both sides of the coil at the target position; The coil is connected to the processor, and the processor is configured to: determining a door opening and closing angle of the door body based on a target position of the coil generating the first induced electromotive force; Based on the door opening and closing angles, a target operation is performed.

2. The refrigerator according to claim 1, wherein: The processor includes a plurality of pins, each of which corresponds to a plurality of coils arranged in the arc-shaped cavity, and the coils are connected to the corresponding pins; The processor is further configured to: The target position of the coil generating the first induced electromotive force is determined based on the pin receiving the first signal; the first signal is used to indicate that the coil connected to the pin generates the first induced electromotive force.

3. The refrigerator according to claim 2, characterized in that The refrigerator further comprises: an amplifying device; the coil is connected to the corresponding pin via the amplifying device; The amplifying device is configured to amplify the first induced electromotive force to obtain the first signal, and output the first signal to the pin corresponding to the coil.

4. The refrigerator according to claim 3, characterized in that The amplifying device includes: a plurality of voltage comparators, the plurality of voltage comparators corresponding one to one with the plurality of coils arranged in the arc-shaped cavity, the coils being connected to the pins corresponding to the coils through the corresponding voltage comparators; For the voltage comparator corresponding to any coil, the voltage comparator is configured as follows: When the first induced electromotive force generated by the coil is greater than or equal to a preset electromotive force, the first induced electromotive force is amplified to obtain the first signal, and the first signal is output to the pin corresponding to the coil.

5. The refrigerator according to claim 4, characterized in that The voltage comparator is further configured to: When the induced electromotive force generated by the coil is less than the preset electromotive force, a second signal is output to the pin corresponding to the coil; the second signal is different from the first signal, and the second signal is used to indicate that the coil does not cut the magnetic flux lines between the N pole of the first magnet and the S pole of the second magnet.

6. The refrigerator according to claim 5, characterized in that The first signal is a first-level signal, and the second signal is a second-level signal; the level of the first-level signal is higher than the level of the second-level signal.

7. The refrigerator according to any one of claims 1 to 6, characterized in that: The box body is connected to the door body through a door body connector, and the door body connector includes: a door body shaft; when the door body is opened or closed, the door body shaft rotates; The magnetic fixing part is connected to the door body rotating shaft so that when the door body rotating shaft rotates, the magnetic fixing part is driven to rotate.

8. The refrigerator according to any one of claims 1 to 6, characterized in that: The door body connecting member also includes: a door body support seat, which is arranged below the door body and fixed on the box body; the door body rotating shaft passes through the opening on the door body support seat and is connected to the box body; the arc-shaped cavity is fixed on the inner side wall of the opening of the door body support seat.

9. The refrigerator according to any one of claims 1 to 6, characterized in that: The refrigerator further includes a driving member connected to the processor, and the processor is further configured to: Get the target door opening angle; The performing of a target operation based on the door opening and closing angle includes: In response to an automatic door opening instruction, based on the door opening and closing angle, when the door body is automatically opened to the target door opening angle by the driving member, the door body is controlled by the driving member to stop opening; or, The performing of a target operation based on the door opening and closing angle includes: In response to an automatic door closing instruction, the door body is controlled to automatically close based on the door opening and closing angle by the driving member, and when it is determined that the door body is closed based on the door opening and closing angle, the door body is controlled to stop closing by the driving member.

10. A refrigerator angle detection method, characterized in that: The refrigerator includes: a cabinet, a door, a processor, and an angle detection device; the angle detection device includes: a first magnet, a second magnet, a magnet fixing member, and an arc-shaped cavity; the first magnet and the second magnet are both fixed to the magnet fixing member, and the north pole of the first magnet and the south pole of the second magnet are arranged oppositely on the upper and lower sides of the arc-shaped cavity; The door body is opened or closed so that the magnet fixing member is driven to rotate, so that the first magnet and the second magnet on the magnet fixing member rotate together; A plurality of coils are arranged in the arc-shaped cavity, and the plurality of coils are arranged at different positions; the plurality of coils are arranged in the arc-shaped cavity in such a manner that when the first magnet and the second magnet are rotated to a target position, the coil at the target position in the arc-shaped cavity cuts the magnetic flux lines between the north pole of the first magnet and the south pole of the second magnet, and generates a first induced electromotive force on both sides of the coil at the target position; The coil is connected to the processor, and the method is applied to the processor, the method comprising: determining a door opening and closing angle of the door body based on a target position of the coil generating the first induced electromotive force; Based on the door opening and closing angles, a target operation is performed.

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