Position detection device, door body and refrigerator

Abstract

The utility model relates to a position detection device, a door body and a refrigerator, the position detection device comprises a receiving module and a transmitting module, and the transmitting module and the receiving module are oppositely arranged in an overturning beam of the door body and a door plate inner cavity of the door body respectively; wherein when the overturning beam is in a closed state, the receiving module receives a signal output by the transmitting module and generates a first level signal; and when the overturning beam is in an overturning state, the receiving module cannot receive the signal output by the transmitting module. According to the invention, the problem of accurately detecting the position of the overturning beam is solved.

Description

Technical Field

[0001] The present application relates to the field of position detection, and in particular to a position detection device, a door body and a refrigerator. Background Art

[0002] In related technologies, refrigerator flip beams use a mechanical structure to open and close the beam, allowing the door to open and close automatically. If the beam's position deviates, the door may not fully open or close. This mechanical structure cannot detect the beam's position and cannot be used with subsequent door function expansion and safety protection features, leading to safety issues during automatic door opening and closing.

[0003] With regard to the problem in related technologies that the position of the flip beam cannot be accurately detected, no effective solution has been proposed so far. Utility Model Content

[0004] The embodiments of the present application provide a position detection device, a door body, and a refrigerator to at least solve the problem in the related art that the position of the flip beam cannot be accurately detected.

[0005] In a first aspect, an embodiment of the present application provides a position detection device, comprising: a receiving module and a transmitting module, wherein the transmitting module and the receiving module are respectively arranged relative to the flip beam of the door body and the inner cavity of the door panel of the door body; wherein,

[0006] When the flip beam is in a closed state, the receiving module receives the signal output by the transmitting module and generates a first level signal;

[0007] When the flip beam is in a flip state, the receiving module cannot receive the signal output by the transmitting module.

[0008] In some embodiments, the transmitting module includes a transmitting coil connected to an alternating current source.

[0009] In some embodiments, the receiving module includes a receiving coil and a signal processing module.

[0010] In some embodiments, the position detection device includes:

[0011] When the flip beam is in a flipped state, the distance between the flip beam and the door panel of the door body is greater than the communication distance between the receiving module and the transmitting module;

[0012] When the flip beam is in a closed state, the distance between the flip beam and the door panel of the door body is less than or equal to the communication distance between the receiving module and the transmitting module.

[0013] In some embodiments, when the flip beam is in a closed state, the projection of the receiving module covers a portion of the projection of the transmitting module.

[0014] In some embodiments, the transmitting module and the receiving module are arranged in parallel.

[0015] In some embodiments, the receiving module generates a first level signal when receiving the signal output by the transmitting module, and generates a second level signal when not receiving the signal output by the transmitting module, and the levels of the first level signal and the second level signal are opposite.

[0016] In a second aspect, an embodiment of the present application provides a door body, comprising: the door body includes the position detection device described in the first aspect above.

[0017] In some embodiments, the door body further includes a voice module, which is connected to the position detection device; wherein,

[0018] The receiving module generates a first level signal when receiving the signal output by the transmitting module, and generates a second level signal when not receiving the signal output by the transmitting module;

[0019] The voice module is configured to output a corresponding preset voice in response to the second level signal and / or the first level signal.

[0020] In a second aspect, an embodiment of the present application provides a refrigerator, comprising: a door of the refrigerator is provided with the position detection device described in the first aspect.

[0021] Compared with the related art, the embodiment of the present application provides a method of setting a signal transmitting device and a receiving device in the flip beam and the inner cavity of the door panel respectively. Based on the communication between the transmitting device and the receiving device, it can be determined whether the position of the flip beam has changed, thereby solving the problem of being unable to accurately detect the position of the flip beam and realizing accurate identification of the flip beam position of the mechanical structure.

[0022] The details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 1 is a schematic structural diagram of a position detection device in this embodiment;

[0025] Figure 2 1 is a schematic structural diagram of a position detection device when a flip beam is in a flip state in this embodiment;

[0026] Figure 3 1 is a schematic structural diagram of a position detection device when a flip beam is in a closed state in this embodiment;

[0027] Figure 4 This is a structural diagram of a door body in this embodiment;

[0028] Figure 5 It is a structural schematic diagram of a refrigerator in this embodiment.

[0029] Drawing numerals: 1000, refrigerator; 100, door body; 101, position detection device; 11, transmitting module; 12, receiving module; 102, turning beam; 103, door panel. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the contents disclosed in the present application, some changes such as design, manufacturing or production based on the technical contents disclosed in the present application are only conventional technical means and should not be understood as the contents disclosed in the present application being insufficient.

[0031] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments unless there is a conflict.

[0032] Unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by a person of ordinary skill in the technical field to which this application belongs. The words "one", "a", "the" and the like used in this application do not indicate a limit on quantity and may indicate the singular or plural. The terms "include", "comprise", "have" and any variations thereof used in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units that are inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The word "multiple" used in this application means greater than or equal to two. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The terms "first", "second", "third" and the like involved in this application are merely used to distinguish similar objects and do not represent a specific ordering of the objects.

[0033] This embodiment provides a position detection device 101, Figure 1 is a structural diagram of a position detection device 101 in this embodiment, as shown in FIG. Figure 1 As shown, the position detection device 101 includes: a receiving module 12 and a transmitting module 11, and the transmitting module 11 and the receiving module 12 are respectively arranged relative to the flip beam 102 of the door body 100 and the inner cavity of the door panel 103 of the door body 100; wherein, when the flip beam 102 is in a closed state, the receiving module 12 receives the signal output by the transmitting module 11 and generates a first level signal; when the flip beam 102 is in a flipped state, the receiving module 12 cannot receive the signal output by the transmitting module 11.

[0034] The flip beam 102 is connected to the door 100 and is used to compress the door panel 103 when the door 100 is closed, ensuring that the inside of the door 100 is isolated from the outside air. The flip beam 102 can rotate or flip relative to the refrigerator door 100. During this rotation or flipping process, the distance between the flip beam 102 and the door panel 103 changes, thereby changing the relative distance between the transmitter module 11 and the receiver module 12. Alternatively, the transmitter module 11 can be placed on the flip beam 102 and the receiver module 12 can be placed inside the door panel 103; alternatively, the transmitter module 11 can be placed inside the door panel 103 and the receiver module 12 can be placed on the flip beam 102.

[0035] The transmitting and receiving devices can be wireless communication devices that operate within a short range. For example, a signal transmitting device and a signal receiving device that implement communication based on the principle of electromagnetic induction can be used as the transmitting and receiving devices, respectively. When the flip beam 102 is in the closed state, the transmitting module 11 and the receiving module 12 are within the communication distance between the receiving module 12 and the transmitting module 11, so that the receiving module 12 can receive the signal output by the transmitting module 11 and convert the received signal into a data signal, thereby outputting a first level signal. When the flip beam 102 is in the flipped state, the distance between the transmitting module 11 and the receiving module 12 becomes longer and exceeds the communication distance between the receiving module 12 and the transmitting module 11, resulting in the receiving module 12 being unable to receive the signal output by the transmitting module 11. In this case, when the receiving module 12 is unable to receive the signal output by the transmitting module 11, the receiving module 12 may not output a signal; alternatively, when unable to receive the signal output by the transmitting module 11, the receiving module 12 may output a signal different from the first level signal to distinguish the current position of the flip beam 102.

[0036] In this embodiment, by setting a signal transmitting device and a receiving device in the inner cavity of the flip beam 102 and the door panel 103 respectively, and determining whether the position of the flip beam 102 changes based on the communication between the transmitting device and the receiving device, the accurate identification of the position of the flip beam 102 of the mechanical structure is achieved.

[0037] In one embodiment, the transmitting module 11 includes a transmitting coil connected to an alternating current source. The transmitting coil is a conductive wire wound into a ring-shaped structure. The transmitting coil can be a planar structure such as a spiral, or a three-dimensional structure similar to a solenoid. The transmitting coil can be made of a conductor with low resistivity, such as copper or aluminum. By connecting the transmitting coil to an alternating current, the alternating current flowing through the coil generates a changing magnetic field. The receiving module 12 can generate an electromotive force based on the changing magnetic field, allowing the receiving module 12 to receive signals from the transmitting module 11.

[0038] Furthermore, in one embodiment, the receiving module 12 includes a receiving coil and a signal processing module. The receiving coil is also a conductive wire wound into a ring structure. The receiving coil can be a planar structure such as a spiral structure, or can be set to a three-dimensional structure similar to a solenoid. The receiving coil can capture the changing magnetic field generated by the transmitting coil and generate an electromotive force. The signal processing module is used to convert the analog signal generated by the receiving device into a data signal, thereby outputting a level signal. Optionally, the signal processing module also includes a rectifier circuit, a demodulation circuit, a filtering and voltage stabilization circuit, a signal amplification circuit, etc. connected to the receiving coil, and the electrical signal received by the receiving coil is processed and converted by the above-mentioned circuits connected to the receiving coil.

[0039] Furthermore, the signal processing module can be connected to a device with an alarm function, such as a buzzer or LED light. The signal processing module outputs a level signal to the alarm device, allowing the user to obtain a prompt indicating the current position of the flip beam 102 based on the alarm device. The signal processing module can also be connected to a processor, inputting a digital signal to the processor so that the processor can identify the current position of the flip beam 102. In this embodiment, the electromagnetic induction system is formed by the receiving module 12 and the transmitting module 11, and the two work together to achieve wireless signal transmission, which is highly feasible.

[0040] In one embodiment, when the flip beam 102 is in the flipped state, the distance between the flip beam 102 and the door panel 103 of the door body 100 is greater than the communication distance between the receiving module 12 and the transmitting module 11; and when the flip beam 102 is in the closed state, the distance between the flip beam 102 and the door panel 103 of the door body 100 is less than or equal to the communication distance between the receiving module 12 and the transmitting module 11. When the flip beam 102 is in the flipped state, the structure in which the flip beam 102 is located flips inward or outward relative to the door body 100, increasing the distance between the flip beam 102 and the door panel 103. When the flip beam 102 is in the closed state, the structure in which the flip beam 102 is located is closer to the door panel 103, decreasing the distance between the flip beam 102 and the door panel 103. The communication distance between the receiving module 12 and the transmitting module 11 is determined based on the flipped state of the flip beam 102 and the distance between the door body 100 and the door panel 103 in the closed state, thereby ensuring the accuracy of the detection results of the position detection device 101.

[0041] In one embodiment, when the flip beam 102 is in the closed state, the projection of the receiving module 12 partially overlaps the projection of the transmitting module 11. By arranging the positions of the receiving module 12 and the transmitting module 11 so that there is at least partial overlap between the receiving module 12 and the transmitting module 11, signal communication between the receiving module 12 and the transmitting module 11 is ensured. The less overlap there is between the receiving module 12 and the transmitting module 11, the lower the coupling coefficient between the receiving module 12 and the transmitting module 11. This increases energy loss during signal transmission from the transmitting module 11 to the receiving module 12, resulting in poor signal quality. Furthermore, the effective transmission range between the transmitting module 11 and the receiving module 12 is reduced.

[0042] Considering the communication quality and transmission range of the position detection device 101, in one embodiment, the transmitting module 11 and the receiving module 12 are arranged in parallel. By being arranged in parallel, when the flip beam 102 is closed, the receiving coils can be parallel to each other and aligned in the center, thereby improving the signal transmission quality.

[0043] In one embodiment, the receiving module 12 generates a first level signal when receiving a signal output by the transmitting module 11. When the receiving module 12 does not receive a signal output by the transmitting module 11, the receiving module 12 generates a second level signal. The first level signal and the second level signal have opposite levels. Outputting different level signals effectively distinguishes between the closed and flipped states of the flip beam 102. Furthermore, the design of representing information using different level signals is simple and reliable.

[0044] The embodiments of the present application are described and illustrated below through preferred embodiments.

[0045] Figure 2 1 is a schematic structural diagram of the position detection device 101 when the flip beam 102 is in a flipped state in an embodiment of the present application. Figure 2 The left side is a schematic structural diagram of the transmitting module 11 , wherein the transmitting module 11 is an electromagnetic induction coil formed by winding a wire into a spiral shape, and the transmitting module 11 is installed inside the flip beam 102 . Figure 2 The right side is a schematic diagram of the structure of the receiving module 12 in this embodiment, wherein the receiving module 12 includes a sensing chip for electromagnetic induction magnetic field and a peripheral signal processing circuit. Figure 2 The gray area in the figure is the signal processing circuit, and the white area surrounding the gray area is the signal processing circuit. The electromagnetic induction magnetic field receiving module 12 is pre-buried in the inner shell of the door body 100. Figure 2 As shown, the position detection module is an electromagnetic induction device. When the flip beam 102 flips, its transmitting module 11 and receiving module 12 separate. Optionally, when the flip beam 102 flips, the transmitting module 11 and receiving module 12 separate and become perpendicular to each other. In this case, the receiving module 12 cannot receive the signal output by the transmitting module 11 and outputs a second level signal. Figure 3 1 is a schematic structural diagram of the position detection device 101 when the flip beam 102 is in a closed state in the embodiment of the present application. Figure 3 As shown, when the flip beam 102 is closed, the transmitting module 11 and the receiving module 12 are parallel to each other, and the distance between the transmitting module 11 and the receiving module 12 is less than the maximum communication distance D between them, so that the electromagnetic induction receiving device can receive the transmitting end signal.

[0046] Optionally, the receiving module 12 of the position detection device 101 can be connected to the main control board. The receiving module 12 outputs a first level signal or a second level signal and transmits it to the main control board. The main control board can then determine the position of the flip beam 102 based on the received level signal: upon receiving the first level signal, the flip beam 102 is determined to be closed; upon receiving the second level signal, the flip beam 102 is determined to be flipped. The first level signal can be a low level signal, and the second level signal can be a high level signal. It is understood that the first level signal can also be set to a high level signal, and the second level signal to a low level signal.

[0047] Furthermore, the main control board can also be connected to an alarm device. The alarm device can be a device that has one or more alarm functions, including sound, light, or electrical signals. For example, the alarm device is a buzzer, with the first level signal being a low level signal and the second level signal being a high level signal. When the main control board receives a high level signal for a first duration output by the detection device's receiving module 12 and determines that the flip beam 102 is in the flipped state, it can transmit a preset signal to the buzzer, causing it to emit a warning tone. The buzzer's warning can alert the user that the flip beam 102 is in the flipped open state. After the user manually closes the flip beam 102, the position detection device 101 outputs a low level signal to the main control board. The main control board can then determine that the flip beam 102 is in the closed state and stop transmitting the preset signal to the buzzer, causing the buzzer to stop emitting the warning tone. Alternatively, if the position detection device 101 outputs a low level signal for a second duration to the main control board, the main control board can stop transmitting the preset signal to the buzzer. Thus, if the flip beam 102 is not manually closed by the user for a long time, the buzzer will automatically stop playing the warning tone after the second time. Optionally, when the level signal received by the main control board changes from a high-level signal to a low-level signal, and after receiving the low-level signal for a third time, it can be determined that the flip beam 102 is in the closed state, and a preset signal is transmitted to the display buzzer, and the buzzer is sounded for 3 seconds, prompting the user that the flip beam 102 has returned to the closed state. The first time can be set to 1 minute, the second time to 3 minutes, the third time to 1 second, and the fourth time to 3 seconds. The first time, second time, third time, and fourth time can also be modified according to application requirements.

[0048] Based on the same inventive concept, the embodiment of the present application also provides a door body 100 for implementing the above-mentioned position detection device 101. The door body 100 in this embodiment is used to implement the above-mentioned embodiments and preferred embodiments, and the details that have been described will not be repeated. As used below, the terms "module", "unit", "sub-unit", etc. can be a combination of software and / or hardware that implements predetermined functions. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and conceivable.

[0049] In one embodiment, Figure 4 A schematic diagram of a door body 100 is provided, such as Figure 4 As shown, the door body 100 includes a position detection device 101, which includes: a receiving module 12 and a transmitting module 11, and the transmitting module 11 and the receiving module 12 are respectively arranged relative to the flip beam 102 of the door body 100 and the inner cavity of the door panel 103 of the door body 100; wherein, when the flip beam 102 is in a closed state, the receiving module 12 receives the signal output by the transmitting module 11 and generates a first level signal; when the flip beam 102 is in a flipping state, the receiving module 12 cannot receive the signal output by the transmitting module 11.

[0050] Furthermore, in one embodiment, the door body 100 also includes a voice module, which is connected to the position detection device 101; wherein the receiving module 12 generates a first level signal when receiving a signal output by the transmitting module 11, and generates a second level signal when not receiving a signal output by the transmitting module 11; the voice module is used to output a corresponding preset voice in response to the second level signal and / or the first level signal.

[0051] The voice module can be a sound-generating device such as a buzzer or a speaker. Optionally, the voice module is connected to the receiving module 12. When the receiving module 12 inputs a first level signal into the voice module, the voice module outputs a first preset voice according to the first level signal to remind the user that the flip beam 102 is in a closed state. Alternatively, the voice module is connected to the receiving module 12. When the receiving module 12 inputs a second level signal into the voice module, the voice module outputs a second preset voice according to the second level signal to remind the user that the flip beam 102 is in a closed state. Alternatively, the voice module can output the first preset voice according to the first level signal, and can also output the second preset voice according to the second level signal. By connecting the voice module to the position detection device 101, the user can accurately judge the position of the flip beam 102 based on voice.

[0052] In one embodiment, the transmitting module 11 includes a transmitting coil connected to an alternating current source. The receiving module 12 includes a receiving coil and a signal processing module.

[0053] In some embodiments, when the flip beam 102 is in a flipped state, the distance between the flip beam 102 and the door panel 103 of the door body 100 is not within a preset range; when the flip beam 102 is in a closed state, the distance between the flip beam 102 and the door panel 103 of the door body 100 is within a preset range.

[0054] In some embodiments, when the flip beam 102 is in the closed state, the projection of the receiving module 12 covers part of the projection of the transmitting module 11. Optionally, the transmitting module 11 and the receiving module 12 are arranged in parallel.

[0055] In some embodiments, the receiving module 12 generates a first level signal when receiving a signal output by the transmitting module 11, and generates a second level signal when not receiving a signal output by the transmitting module 11, and the levels of the first level signal and the second level signal are opposite.

[0056] In combination with the position detection device 101 in the above embodiment, based on the same inventive concept, the embodiment of the present application also provides a refrigerator 1000 involving the above position detection device 101. The refrigerator 1000 in this embodiment is used to implement the above embodiment and preferred implementation mode, and the details that have been described will not be repeated. In one embodiment, Figure 5 A refrigerator 1000 is also provided, such as Figure 5 As shown, the door body 100 of the refrigerator 1000 is provided with a position detection device 101; wherein, the position detection device 101 includes: a receiving module 12 and a transmitting module 11, and the transmitting module 11 and the receiving module 12 are respectively arranged relative to the flip beam 102 of the door body 100 and the inner cavity of the door panel 103 of the door body 100; wherein, when the flip beam 102 is in a closed state, the receiving module 12 receives the signal output by the transmitting module 11 and generates a first level signal; when the flip beam 102 is in a flipped state, the receiving module 12 cannot receive the signal output by the transmitting module 11.

[0057] In one embodiment, the transmitting module 11 includes a transmitting coil connected to an alternating current source; the receiving module 12 includes a receiving coil and a signal processing module.

[0058] In some embodiments, when the flip beam 102 is in the closed state, the projection of the receiving module 12 covers part of the projection of the transmitting module 11. Optionally, the transmitting module 11 and the receiving module 12 are arranged in parallel.

[0059] In some embodiments, the receiving module 12 generates a first level signal when receiving a signal output by the transmitting module 11 , and generates a second level signal when not receiving a signal output by the transmitting module 11 .

[0060] In some embodiments, when the flip beam 102 is in a flipped state, the distance between the flip beam 102 and the door panel 103 of the door body 100 is greater than the communication distance between the receiving module 12 and the transmitting module 11; when the flip beam 102 is in a closed state, the distance between the flip beam 102 and the door panel 103 of the door body 100 is less than or equal to the communication distance between the receiving module 12 and the transmitting module 11.

[0061] It should be noted that the above modules can be functional modules or program modules, and can be implemented through software or hardware. For modules implemented through hardware, the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0062] Those skilled in the art should understand that the various technical features of the above-described embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A position detection device, characterized in that: The device comprises: a receiving module and a transmitting module, wherein the transmitting module and the receiving module are respectively arranged relative to the turning beam of the door body and the inner cavity of the door panel of the door body; wherein, When the flip beam is in a closed state, the receiving module receives the signal output by the transmitting module and generates a first level signal; When the flip beam is in a flip state, the receiving module cannot receive the signal output by the transmitting module.

2. The position detection device according to claim 1, characterized in that The transmitting module includes a transmitting coil, and the transmitting coil is connected to an alternating current source.

3. The position detection device according to claim 2, characterized in that: The receiving module includes a receiving coil and a signal processing module.

4. The position detection device according to claim 1, wherein: include: When the flip beam is in a flipped state, the distance between the flip beam and the door panel of the door body is greater than the communication distance between the receiving module and the transmitting module; When the flip beam is in a closed state, the distance between the flip beam and the door panel of the door body is less than or equal to the communication distance between the receiving module and the transmitting module.

5. The position detection device according to claim 1, wherein: When the flip beam is in a closed state, the projection of the receiving module covers part of the projection of the transmitting module.

6. The position detection device according to claim 1, wherein: The transmitting module and the receiving module are arranged in parallel.

7. The position detection device according to claim 1, wherein: The receiving module generates a second level signal when not receiving the signal output by the transmitting module, and the first level signal and the second level signal have opposite levels.

8. A door body, characterized in that: include: The door body includes the position detection device according to any one of claims 1 to 7.

9. The door body according to claim 8, characterized in that: The door body further includes a voice module, which is connected to the position detection device; wherein, The receiving module generates a first level signal when receiving the signal output by the transmitting module, and generates a second level signal when not receiving the signal output by the transmitting module; The voice module is configured to output a corresponding preset voice in response to the second level signal and / or the first level signal.

10. A refrigerator, characterized in that: include: The door of the refrigerator is provided with the position detection device according to any one of claims 1 to 7.

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