Return air inlet baffle structure and refrigerator
By using the return air outlet baffle structure controlled by electromagnetic partition strips and rotary baffle at the refrigerator return air outlet, the problems of complex mechanical baffle structure and airflow leakage are solved, and efficient sealing and energy efficiency improvement are achieved.
Patent Information
- Application Number
- CN202421145538.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The mechanical baffle of the existing refrigerator return air outlet is complex in structure, the baffle gap is easy to be closed tightly, resulting in airflow leakage, and the driving structure occupies a large amount of space, which is easily caused by low temperatures.
The return air outlet baffle structure including a baffle frame, electromagnetic spacer strip and rotary baffle is adopted. The principle of the electromagnetic spacer strip attracting the magnetic strip and magnetic strip to control the rotation of the rotary baffle, realize the opening or closing of the ventilation groove, and improve the sealing. and reduce space usage.
It effectively avoids airflow leakage, improves sealing and energy efficiency, reduces energy consumption, and does not require a mechanical drive structure. The overall structure is more simplified and stable, avoiding driving failure caused by low temperatures.
Smart Images
Figure CN222504575U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of refrigerator components, for example, to a return air vent baffle structure and a refrigerator. Background Art
[0002] At present, the existing bottom-mounted evaporator lies flat or sideways at the bottom of the freezer and variable temperature room, close to the bottom of the tank and near the return air outlet. To ensure thorough defrosting, the defrosting heating wire is wrapped around the surface of the evaporator. When the evaporator defrosts, hot and humid air rises and enters the interior of the compartment from the return air outlet, encountering the lower temperature of the inner tank and the surface of the drawer, causing condensation or frost. And because the return air outlet is close to the door, when the user opens the door, the cold air from the evaporator is easy to overflow into the refrigerator compartment through the return air outlet, increasing the energy consumption of the refrigerator; when the refrigerator stops refrigeration, the temperature in the bottom-mounted evaporator compartment and the drawer close to the evaporator is low, and the cold air sinks severely, resulting in a large temperature difference between the upper and lower drawers in the compartment.
[0003] In the related art, a switch is provided at the position of the return air vent, so that the return air vent can be closed during the defrosting stage to prevent hot and humid air from entering the room. However, since the return air vent is generally a rectangular structure, the mechanical baffle structure is complex, and the baffle gap is prone to not closing tightly, resulting in air leakage. In addition, the driving structure occupies a large space and is easily affected by low temperature and causes failure.
[0004] Therefore, it can be seen that improving the sealing effect of the return air vent closure, reducing its space occupancy, and improving the stability of the overall structure have become technical problems that need to be urgently solved by technical personnel in this field.
[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content
[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.
[0007] The disclosed embodiments provide a return air vent baffle structure and a refrigerator to solve the problems that the mechanical baffle structure is complex, the baffle gap is easily not closed tightly resulting in air leakage, and the driving structure occupies a large space and is easily affected by low temperature and causes failure.
[0008] In some embodiments, the return air vent baffle structure includes: a baffle frame, electromagnetic partitions and a rotating baffle; a plurality of electromagnetic partitions are provided and are parallel to each other in the baffle frame, so as to separate a plurality of ventilation slots in the baffle frame; the rotating baffle is rotatably provided in the ventilation slot, and a magnetic strip is provided on one side parallel to the electromagnetic partition; wherein, when the electromagnetic partition and the magnetic strip have opposite poles attracted to each other, the rotating baffle can be driven to rotate so that its side is in close contact with the electromagnetic partition, thereby closing the ventilation slot.
[0009] Optionally, the width of the rotating baffle is greater than or equal to the width of the ventilation slot.
[0010] Optionally, the electromagnetic spacer includes: a spacer body and a strip-shaped electromagnet, wherein the spacer body is arranged in the baffle frame; and the strip-shaped electromagnet is arranged on the side of the spacer body.
[0011] Optionally, both side edges of the partition bar body are provided with abutment grooves, and the strip-shaped electromagnets are arranged in the abutment grooves.
[0012] Optionally, the return air vent baffle structure further includes: a baffle rebound component, which is disposed at the connection between the rotating baffle and the ventilation slot, and is used to rebound the rotating baffle to a state in which the ventilation slot is opened.
[0013] Optionally, the baffle rebound assembly includes: a first rotating shaft and a torsion spring, wherein one end of the first rotating shaft is fixedly set on the baffle frame or the rotating baffle, and the other end is connected to the baffle frame and another rotating connection in the rotating baffle; the torsion spring is coaxially arranged with the first rotating shaft, and one end is fixedly connected to the baffle frame, and the other end is fixedly connected to the rotating baffle.
[0014] Optionally, the first rotating shaft is a hollow structure, and the torsion spring is arranged inside the first rotating shaft of the hollow structure.
[0015] In some embodiments, the refrigerator includes any one of the above-mentioned return air baffle structures.
[0016] Optionally, the refrigerator further includes: an evaporation bin, which is disposed at the bottom of the refrigerator, and a return air outlet is disposed on the front side of the evaporation bin, and a return air outlet baffle structure is disposed on the inner side of the return air outlet.
[0017] Optionally, the refrigerator further includes: a controller component, which is connected to the return air vent baffle structure and is used to control the opening or closing of the return air vent baffle structure.
[0018] The return air vent baffle structure and refrigerator provided by the embodiments of the present disclosure can achieve the following technical effects:
[0019] The return air vent baffle structure is arranged at the return air vent of the refrigerator, and the ventilation slot can be closed when the refrigerator evaporator is defrosted, and the refrigerator is in a non-ventilated state, thereby blocking the hot and humid air from entering the compartment through the return air vent of the evaporator air duct; when the refrigerator is not refrigerating, the ventilation slot is closed to block the cold air from sinking, and prevent the cold air from diffusing to the outside of the refrigerator through the return air vent during the door opening, thereby improving energy efficiency. This solution utilizes the principle that the same poles of the electromagnetic spacer and the magnetic strip attract each other and the opposite poles repel each other to control the rotation of the rotating baffle. In the case where the electromagnetic spacer and the magnetic strip attract each other with opposite poles, the attraction between them can effectively maintain the close contact between the two, improve the sealing, and avoid airflow leakage. Without the need for a mechanical drive structure, the overall structure is simpler and more stable, and drive failure caused by low temperature can be effectively avoided. The overall structure is more stable and durable.
[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:
[0022] Figure 1 is an overall schematic diagram of a return air vent baffle structure provided by an embodiment of the present disclosure;
[0023] Figure 2 is a structural schematic diagram of a baffle frame provided by an embodiment of the present disclosure;
[0024] Figure 3 is a structural schematic diagram of a rotating baffle provided by an embodiment of the present disclosure;
[0025] Figure 4 yes Figure 3 The enlarged schematic diagram of part A in the middle;
[0026] Figure 5 yes Figure 3 The enlarged schematic diagram of part B in the middle;
[0027] Figure 6 It is a schematic diagram of the structure of an electromagnetic spacer and a rotating baffle provided by an embodiment of the present disclosure;
[0028] Figure 7 is a schematic diagram of the structure of an electromagnetic spacer provided in an embodiment of the present disclosure;
[0029] Figure 8 is a schematic structural diagram of a refrigerator provided by an embodiment of the present disclosure;
[0030] Fig. 9It is a schematic diagram of another refrigerator provided by an embodiment of the present disclosure.
[0031] Reference numerals:
[0032] 100. baffle frame; 101. ventilation slot;
[0033] 200, electromagnetic spacer; 201, spacer body; 202, bar-shaped electromagnet; 203, abutment groove;
[0034] 300, rotating baffle; 301, magnetic strip;
[0035] 400, baffle rebound assembly; 401, first rotating shaft; 402, torsion spring; 403, second rotating shaft;
[0036] 500, evaporation chamber; 501, return air outlet;
[0037] 600, controller component;
[0038] 700. Detection module. DETAILED DESCRIPTION
[0039] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.
[0040] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
[0041] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0042] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0043] Unless otherwise stated, the term "plurality" means two or more.
[0044] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.
[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
[0046] Combination Figure 1-Figure 5 As shown, the embodiment of the present disclosure provides a return air vent baffle structure, including: a baffle frame 100, an electromagnetic partition bar 200, and a rotating baffle 300; the electromagnetic partition bar 200 is provided in plurality and is arranged in parallel in the baffle frame 100, so as to separate a plurality of ventilation slots 101 in the baffle frame 100; the rotating baffle 300 is rotatably arranged in the ventilation slot 101, and a magnetic strip 301 is provided on one side thereof parallel to the electromagnetic partition bar 200; wherein, when the electromagnetic partition bar 200 and the magnetic strip 301 have opposite poles attracted to each other, the rotating baffle 300 can be driven to rotate so that its side is in close contact with the electromagnetic partition bar 200, thereby closing the ventilation slot 101.
[0047] By adopting the return air vent baffle structure of the embodiment of the present invention, the return air vent baffle structure is set at the return air vent of the refrigerator. When the refrigerator evaporator is defrosted, the ventilation slot 101 can be closed and the refrigerator is in a non-ventilated state, thereby blocking the hot and humid air from entering the compartment through the return air vent of the evaporator air duct; when the refrigerator is not refrigerating, the ventilation slot 101 is closed to block the cold air from sinking, thereby preventing the cold air from diffusing to the outside of the refrigerator through the return air vent during the door opening, thereby improving energy efficiency. This solution utilizes the principle that the electromagnetic spacer 200 and the magnetic strip 301 have the same poles attracted to each other and the opposite poles repelled to each other, thereby controlling the rotation of the rotating baffle 300. When the electromagnetic spacer 200 and the magnetic strip 301 have opposite poles attracted to each other, the attraction between them can effectively maintain the close contact between the two, improve the sealing, avoid airflow leakage, and do not require a mechanical drive structure. The overall structure is simpler and more stable, which can effectively avoid drive failure caused by low temperature, and the overall structure is more stable and durable.
[0048] When the electromagnetic spacer bar 200 and the magnetic strip 301 have the same polarity and repel each other, the side of the rotating baffle 300 is pushed away from the electromagnetic spacer bar 200 to open the ventilation slot 101. In this way, the rotation direction of the rotating baffle 300 can be controlled by changing the magnetic pole direction of the electromagnetic spacer bar 200, thereby opening or closing the ventilation slot 101. The overall structure is simple and reliable, and the controllability is higher.
[0049] Compared with the traditional mechanical baffle, the structure of the electromagnetic spacer 200 and the rotating baffle 300 is simpler. This simplification of design helps to reduce manufacturing costs and maintenance work, while improving overall reliability.
[0050] Since the designs of the electromagnetic spacer 200 and the rotating baffle 300 do not rely on complex mechanical connections, they can better adapt to harsh environments, such as low temperature or vibration environments, thereby maintaining stable performance under various conditions.
[0051] Optionally, the baffle frame 100 is a rectangular frame, the ventilation slot 101 is a rectangular opening slot, and the rotating baffle 300 is a rectangular plate-shaped structure adapted to the ventilation slot 101. In this way, the baffle frame 100, the ventilation slot 101 and the rotating baffle 300 are all set to be rectangular, so that their shapes are regular and easier to install, and the symmetrical sides of the rectangular structure make it easier for the rotating baffle 300 to make closer contact with the sides of the ventilation slot 101 after rotation, so as to maintain a sealing effect.
[0052] It should be noted that the magnetic strip 301 itself will generate a corresponding magnetic field, and the electromagnetic spacer 200 will also generate a corresponding magnetic field when powered on. The direction of the magnetic field generated by the electromagnetic spacer 200 is related to the direction of the current conducted to it. By changing the direction of the current conducted to it, the magnetic pole of the electromagnetic spacer 200 facing the side of the magnetic strip 301 can be controlled, thereby causing the electromagnetic spacer 200 and the magnetic strip 301 to attract or repel each other.
[0053] Optionally, the magnetic strip 301 is arranged at the edge of the side of the rotating baffle 300 and is opposite to the electromagnetic partition strip 200. In this way, the magnetic strip 301 and the electromagnetic partition strip 200 can attract each other, thereby better driving the rotating baffle 300 to close the ventilation slot 101.
[0054] Optionally, the magnetic strip 301 is a strip permanent magnet. In this way, only one of the electromagnetic spacer strip 200 and the magnetic strip 301 needs to be an electromagnet to achieve the effect of controlling the mutual attraction or repulsion between the electromagnetic spacer strip 200 and the magnetic strip 301.
[0055] Optionally, the width of the rotating baffle 300 is greater than or equal to the width of the ventilation slot 101. In this way, the width of the rotating baffle 300 is set to be greater than or equal to the width of the ventilation slot 101, which can ensure that the rotating baffle 300 can completely cover the ventilation slot 101 in the closed state, thereby providing a good sealing effect and preventing gas from entering the compartment through the ventilation slot 101 at an inappropriate time.
[0056] Optionally, the width of the rotating baffle 300 is greater than the width of the ventilation slot 101. The width of the rotating baffle 300 is designed to be greater than the width of the ventilation slot 101, so that even if there is a certain deviation when the rotating baffle 300 closes the ventilation slot 101, it can ensure that the ventilation slot 101 is completely covered, and the side of the rotating baffle 300 can be in direct contact with the side of the ventilation slot 101, so as to achieve effective sealing, reduce gas leakage, and improve the overall sealing performance.
[0057] like Figure 6-Figure 7 As shown, optionally, the electromagnetic spacer 200 includes: a spacer body 201, a strip electromagnet 202, the spacer body 201 is arranged in the baffle frame 100; the strip electromagnet 202 is arranged on the side of the spacer body 201. In this way, the spacer body 201, as the main structural part of the electromagnetic spacer 200, is arranged in the baffle frame 100, which provides the necessary support and structural stability to ensure that the electromagnetic spacer 200 can effectively perform its function, and the strip electromagnet 202 is arranged on the side of the spacer body 201, so that it can better adsorb with the magnetic strip 301 on the rotating baffle 300 when the rotating baffle 300 closes the ventilation slot 101, thereby improving the sealing effect between the rotating baffle 300 and the ventilation slot 101, and the strip electromagnet 202 is energized to generate magnetic force, attracting or repelling the magnetic strip 301 in the rotating baffle 300, so that the ventilation slot 101 can be opened or closed more conveniently.
[0058] It can be understood that the bar electromagnet 202 is a structure in which a current-carrying wire is wrapped around an iron core. According to the principles of electromagnetism, a magnetic field is generated around the current-carrying wire, and the direction of this magnetic field is related to the direction of the current. Therefore, the direction of the magnetic field of the bar electromagnet 202 can be changed by changing the direction of the current.
[0059] like Figure 7 As shown, optionally, both sides of the partition bar body 201 are provided with abutment grooves 203, and the bar-shaped electromagnet 202 is arranged in the abutment grooves 203. In this way, when the rotating baffle 300 is closed, its edge can be inserted into and abutted against the abutment groove 203, so that the magnetic strip 301 and the bar-shaped electromagnet 202 are closely attached, thereby further improving the sealing between the rotating baffle 300 and the electromagnetic partition bar 200, and the fixing of the rotating baffle 300 is also more stable. These abutment grooves 203 provide a dedicated space for the bar electromagnet 202, ensuring the correct position and function of the electromagnetic spacer 200; the bar electromagnet 202 is arranged in the abutment groove 203 of the spacer body 201. This layout makes the electromagnetic spacer 200 and the magnetic strip 301 on the rotating baffle 300 be at the closest distance when closed, thereby providing a stronger magnetic attraction or repulsion; when the rotating baffle 300 closes the ventilation slot 101, it tightly abuts against the abutment groove 203, which can ensure that the contact area between the rotating baffle 300 and the electromagnetic spacer 200 is maximized, thereby improving the sealing effect.
[0060] Optionally, the openings of the abutment grooves 203 on the two adjacent partition bar bodies 201 facing the same rotating baffle 300 are in opposite directions, and respectively abut against the windward side and the leeward side of the rotating baffle 300, thereby limiting the rotation direction of the rotating baffle 300. In this way, the two opposite sides of the rotating baffle 300 can be in close contact with the abutment grooves 203 on the partition bar body 201, thereby improving the overall sealing effect after the rotating baffle 300 is closed.
[0061] Optionally, the abutment groove 203 is a non-penetrating groove body provided on the partition bar body 201 and adapted to the edge of the rotating baffle 300. In this way, the abutment groove 203 can be better utilized to fix the edge of the rotating baffle 300.
[0062] Optionally, the side walls of two adjacent partition bar bodies 201 that are in contact with the rotating baffle 300 in the abutting groove 203 facing the same rotating baffle 300 are parallel to each other. In this way, both sides of the rotating baffle 300 can be in close contact with one side wall of the abutting groove 203 after rotation, thereby improving the airtightness of the rotating baffle 300 after closing the ventilation groove 101.
[0063] like Figure 5As shown, optionally, the return air vent baffle structure also includes: a baffle rebound component 400. The baffle rebound component 400 is arranged at the connection between the rotating baffle 300 and the ventilation slot 101, and is used to rebound the rotating baffle 300 to the state of opening the ventilation slot 101. In this way, the function of the baffle rebound component 400 is to provide a rebound force to rebound the rotating baffle 300 to the open state when the rotating baffle 300 is no longer subjected to the magnetic force of the bar electromagnet 202, so that the bar electromagnet 202 only needs to pass current in one direction, and there is no need to adjust its current direction, that is, there is no need to change the direction of its magnetic pole, and it only needs to have the function of attracting the magnetic strip 301, and the rotating baffle 300 is rebounded by the baffle rebound component 400 to keep it in the open state, so the bar electromagnet 202 only needs to be energized when the ventilation slot 101 is closed, which can effectively reduce energy consumption.
[0064] Optionally, the baffle rebound assembly 400 includes: a first rotating shaft 401 and a torsion spring 402. One end of the first rotating shaft 401 is fixedly arranged on the baffle frame 100, and the other end is rotatably connected to the rotating baffle 300; the torsion spring 402 is coaxially arranged with the first rotating shaft 401, and one end is fixedly connected to the baffle frame 100, and the other end is fixedly connected to the rotating baffle 300. In this way, it is ensured that the rotating baffle 300 can be smoothly rebounded to the original position when the electromagnetic force is lost; the torsion spring 402 provides the necessary torque, so that the rotating baffle 300 can automatically bounce open when the electromagnetic spacer 200 is powered off or loses magnetic force. This automatic reset mechanism reduces the need for manual intervention and improves the convenience of operation.
[0065] Optionally, the first rotating shaft 401 is a hollow structure, and the torsion spring 402 is arranged inside the hollow first rotating shaft 401. In this way, the first rotating shaft 401 adopts a hollow structure design, which not only reduces the weight of the first rotating shaft 401, but also provides space for the arrangement of the torsion spring 402. The torsion spring 402 is arranged inside the first rotating shaft 401, which can protect the torsion spring 402 from external influences, such as dust, dirt and moisture, thereby extending the service life of the torsion spring 402, and at the same time achieving a compact structure, reducing the installation space required for the return air vent baffle structure, making the entire design more space-saving and convenient for use in small or compact refrigerators.
[0066] Optionally, a second rotating shaft 403 coaxially arranged with the first rotating shaft 401 is further provided in the first rotating shaft 401 of the hollow structure, one end of the second rotating shaft 403 is fixedly connected to the rotating baffle 300, and the other end is rotatably connected to the baffle frame 100. In this way, the structure in which the first rotating shaft 401 and the second rotating shaft 403 are mutually sleeved can effectively improve the stability of the rotating connection between the rotating baffle 300 and the baffle frame 100 and improve the structural strength.
[0067] Optionally, the torsion spring 402 is located inside the first rotating shaft 401 and sleeved outside the second rotating shaft 403, with one end of the torsion spring 402 fixedly connected to the first rotating shaft 401 and the other end of the torsion spring 402 fixedly connected to the second rotating shaft 403. In this way, the first rotating shaft 401 and the second rotating shaft 403 can more conveniently provide installation and fixing positions for both ends of the torsion spring 402, facilitating overall assembly, and the first rotating shaft 401 located outside can protect the torsion spring 402, thereby increasing the service life of the torsion spring 402.
[0068] like Figure 8-Figure 9 As shown, the embodiment of the present disclosure provides a refrigerator, comprising any one of the above return air vent baffle structures. The refrigerator has the technical effects of any one of the above return air vent baffle structures.
[0069] Optionally, the refrigerator further includes: an evaporation bin 500, which is arranged at the bottom of the refrigerator, and a return air outlet 501 is arranged at the front side of the evaporation bin 500, and a return air outlet baffle structure is arranged at the inner side of the return air outlet 501. The return air outlet baffle structure of the present application is arranged at the inner side of the return air outlet 501, and it includes a rotating baffle 300, an electromagnetic spacer 200, a baffle rebound assembly 400, etc. These structures work together to control the switch of the return air outlet 501, so as to close the ventilation slot 101 when necessary to prevent the loss of cold air, and automatically open it when not needed to ensure air circulation, thereby effectively managing the opening and closing state of the return air outlet 501. The return air outlet baffle structure of the present application helps to reduce energy loss, especially when the refrigerator door is open, controlling the return air outlet 501 to be closed can significantly reduce energy consumption and improve overall energy efficiency.
[0070] Optionally, the shape of the baffle frame 100 is adapted to the shape of the air duct at the return air outlet 501. In this way, the baffle frame 100 can be installed in the return air outlet 501 more snugly.
[0071] Optionally, the refrigerator further includes: a controller component 600, which is connected to the return air vent baffle structure and is used to control the opening or closing of the return air vent baffle structure. In this way, the return air vent 501 baffle can be controlled to open and close the return air vent 501, so that when the return air vent 501 needs to be closed, the loss of cold air can be prevented, and when the return air vent 501 does not need to be closed, the return air vent 501 is opened to ensure air circulation, effectively manage the opening and closing state of the return air vent 501, and reduce energy loss. In particular, when the refrigerator door is open, controlling the return air vent 501 to close can significantly reduce energy consumption and improve overall energy efficiency.
[0072] Optionally, the controller component 600 is connected to the bar electromagnet 202 in the return air outlet baffle structure, and is used to control whether to energize the bar electromagnet 202. In this way, by controlling the energization or de-energization of the bar electromagnet 202, it can be energized when the return air outlet 501 needs to be closed, so that the side of the rotating baffle 300 is attracted magnetically, so that the rotating baffle 300 remains closed, and de-energized when the return air outlet 501 does not need to be closed, eliminating the attraction to the side of the rotating baffle 300, so that the rotating baffle 300 is reset and the return air outlet 501 is opened.
[0073] Optionally, the refrigerator further includes: a detection module 700, which is connected to the controller assembly 600 and is configured to detect whether the interior of the refrigerator is in a defrosting condition, whether it is in a refrigeration stop condition, or whether the refrigerator door is open. In this way, the detection module 700 can accurately detect whether the interior of the refrigerator is in a defrosting condition, whether the interior of the refrigerator is in a refrigeration stop condition, or whether the refrigerator door is open, so as to better control the switch of the return air vent 501.
[0074] Optionally, the controller component 600 is configured to, when it is determined that the interior of the refrigerator is in a defrosting condition, control the bar electromagnet 202 to be energized so that the return air vent baffle structure is in a closed state, or when it is determined that the interior of the refrigerator is in a stop refrigeration condition, control the bar electromagnet 202 to be energized so that the return air vent baffle structure is in a closed state, or when it is determined that the refrigerator door is in an open state, control the bar electromagnet 202 to be energized so that the return air vent baffle structure is in a closed state. In this way, when it is determined that the interior of the refrigerator is in a defrosting condition, by closing the return air vent 501, it is possible to prevent the high-temperature airflow of defrosting from entering the interior of the refrigerator freezer, causing large temperature fluctuations in the refrigerator freezer and affecting the freezing effect. When it is determined that the interior of the refrigerator is in a stop refrigeration condition, the return air vent 501 can be closed to reduce the sinking and accumulation of low-temperature air in the freezer and reduce the time for the low temperature in the freezer to enter the evaporation bin 500 through the return air vent 501, thereby maintaining the low temperature in the freezer. When the refrigerator door is open, closing the return air vent 501 can prevent the high-temperature and high-humidity air from entering the evaporation chamber 500 and causing serious frost on the evaporator. Especially when the door is opened frequently, the temperature fluctuation of the refrigerator compartment can be reduced. By controlling the opening and closing of the return air vent 501, the loss of cold air and the entry of hot air can be reduced.
[0075] The controller component 600 can be a combination of a microcontroller (such as Arduino or Raspberry Pi), a relay module, a power management circuit, and necessary sensors (such as position sensors or current sensors). The following is a possible detailed structure and working principle of the controller component: The microcontroller is the brain of the entire control system. It receives input signals, processes these signals, and sends output instructions to control the on and off of the electromagnet and the direction of the current. The drive circuit is used to amplify the current according to the instructions of the microcontroller to drive the electromagnet. This may include transistors, MOSFETs, or relays. The relay module is used to switch the power supply of the electromagnet under the control of the microcontroller. It can be a single-pole single-throw (SPST) or single-pole double-throw (SPDT) relay, depending on the design requirements. The power management circuit is responsible for distributing and regulating the appropriate voltage and current from the main power supply of the refrigerator to the controller component and the electromagnet.
[0076] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A return air vent baffle structure, characterized in that: include: Baffle frame (100); A plurality of electromagnetic spacers (200) are provided in parallel with each other in the baffle frame (100), and a plurality of ventilation slots (101) are separated in the baffle frame (100); A rotating baffle (300) is rotatably disposed in the ventilation slot (101), and a magnetic strip (301) is disposed on one side of the rotating baffle plate parallel to the electromagnetic spacer strip (200); When the electromagnetic spacer (200) and the magnetic strip (301) attract each other with opposite poles, the rotating baffle (300) can be driven to rotate so that its side is in close contact with the electromagnetic spacer (200), thereby closing the ventilation slot (101).
2. The return air vent baffle structure according to claim 1, characterized in that: The width of the rotating baffle (300) is greater than or equal to the width of the ventilation slot (101).
3. The return air vent baffle structure according to claim 1, characterized in that: The electromagnetic spacer (200) comprises: The partition bar body (201) is arranged in the baffle frame (100); The strip-shaped electromagnet (202) is arranged on the side of the partition bar body (201).
4. The return air vent baffle structure according to claim 3, characterized in that: Both side edges of the partition bar body (201) are provided with abutment grooves (203), and the bar-shaped electromagnet (202) is arranged in the abutment grooves (203).
5. The return air vent baffle structure according to any one of claims 1 to 4, characterized in that: Also includes: The baffle rebound assembly (400) is arranged at the connection between the rotating baffle (300) and the ventilation slot (101), and is used to rebound the rotating baffle (300) to a state in which the ventilation slot (101) is opened.
6. The return air vent baffle structure according to claim 5, characterized in that: The baffle rebound assembly (400) comprises: A first rotating shaft (401), one end of which is fixedly arranged on the baffle frame (100) or the rotating baffle (300), and the other end of which is rotatably connected to the other of the baffle frame (100) and the rotating baffle (300); The torsion spring (402) is coaxially arranged with the first rotating shaft (401), and one end of the torsion spring is fixedly connected to the baffle frame (100), and the other end of the torsion spring is fixedly connected to the rotating baffle (300).
7. The return air vent baffle structure according to claim 6, characterized in that: The first rotating shaft (401) is a hollow structure, and the torsion spring (402) is arranged inside the first rotating shaft (401) of the hollow structure.
8. A refrigerator, characterized in that: It comprises the return air vent baffle structure as described in any one of claims 1 to 7.
9. The refrigerator according to claim 8, characterized in that: Also includes: The evaporation bin (500) is arranged at the bottom of the refrigerator, and a return air port (501) is arranged at the front side of the evaporation bin (500), and a return air port baffle structure is arranged at the inner side of the return air port (501).
10. The refrigerator according to claim 8 or 9, characterized in that: Also includes: The controller component (600) is connected to the return air outlet baffle structure and is used to control the opening or closing of the return air outlet baffle structure.