Refrigerator

Abstract

The application relates to the technical field of household appliances, and discloses a refrigerator, which comprises a cabinet, a door body, a functional module and a cover plate. The cabinet is configured with a refrigeration space, and the refrigeration space is open at the front side. The door body is arranged on the cabinet in an openable and closable mode, one side end of the door body is inwardly recessed to form a containing space, the functional module is arranged in the containing space, the cover plate is arranged on the opening of the containing space, the cover plate is provided with a blocking rail extending into the containing space in a circumferential direction, and the blocking rail and the side wall of the containing space form an air flow channel.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, such as a refrigerator. Background Technology

[0002] Users' demand for intelligent refrigeration equipment is also gradually increasing. Existing intelligent refrigeration equipment is usually equipped with power modules that include communication, display, or sensing components. The addition of power modules complicates the installation process.

[0003] To optimize the installation process of refrigerator power modules, a refrigeration device is disclosed in related technologies, including a cabinet and a receiving slot for receiving power modules. The cabinet includes at least one wall, the wall including at least one exposed end, the receiving slot being disposed within the wall and having an inlet formed at the end, the power module including a power element with wireless communication function; the receiving slot is configured to provide a receiving space suitable for accommodating the power element, and the power element is spaced at a specific distance from the side wall of the receiving space.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] The inner wall of the refrigeration equipment door is in contact with the low-temperature environment of the refrigeration unit. When indoor air enters the receiving groove inside the door, condensation is easily generated, which increases the risk of short circuit damage to the electrical modules inside the receiving groove.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a refrigerator that reduces or avoids the formation of condensation in the door's storage space.

[0009] In some embodiments, the refrigerator includes a cabinet, a door, a functional module, and a cover. The cabinet has a refrigeration space with an opening at the front. The door is closable and recessed in the cabinet, with its side end recessed to form an accommodating space. The functional module is disposed in the accommodating space. The cover closes to the opening of the accommodating space and has a baffle extending circumferentially into the accommodating space, the baffle forming an airflow channel with the side wall of the accommodating space.

[0010] In some embodiments, the periphery of the opening of the receiving space is provided with a step, and at least a portion of the periphery of the cover plate overlaps the step.

[0011] In some embodiments, the cover plate extends into the receiving space and is provided with a snap-fit ​​portion, and the inner wall of the receiving space is provided with a snap-fit ​​mating portion, wherein one of the snap-fit ​​portion and the snap-fit ​​mating portion is a hook and the other is a block, and the hook and the block are snapped together.

[0012] In some embodiments, the top of the door is recessed downwards to form the receiving space; and / or, a drainage hole is provided at the bottom of the receiving space.

[0013] In some embodiments, the refrigerator further includes a mounting bracket disposed in the accommodating space, and the functional module is mounted on the mounting bracket; wherein the mounting bracket and the components forming the accommodating space are integrally formed.

[0014] In some embodiments, the refrigerator further includes a wire clamp assembly and a connecting wire harness, wherein the wire clamp assembly is disposed in the receiving space; the connecting wire harness has a first end connected to the functional module, and a first segment of the connecting wire harness extending from the functional module is fixed to the wire clamp assembly to be constrained into a preset shape.

[0015] In some embodiments, from the first end to the second end of the connecting harness, the connecting harness is sequentially constrained into a straight line and then into a loop.

[0016] In some embodiments, the length of the straight portion of the first segment of the connecting harness is greater than or equal to 6 centimeters.

[0017] In some embodiments, the functional module is a sensing module, which includes a human sensing unit and a wireless communication unit.

[0018] In some embodiments, the human sensing unit and the wireless communication unit share a PCB substrate.

[0019] In some embodiments, the human sensing unit and the wireless communication unit share a power supply harness.

[0020] In some embodiments, the human sensing unit and the wireless communication unit share the radiating element of the antenna system.

[0021] In some embodiments, the human sensing unit includes a sensing matrix facing the user's door opening position.

[0022] In some embodiments, the wireless communication unit includes a radiating unit facing outward from the door.

[0023] The refrigerator provided in this embodiment can achieve the following technical effects:

[0024] The opening of the functional module's accommodating space is located on the side end face of the refrigerator door, facilitating the assembly of the functional module. The cover's edge and the side wall of the accommodating space form an airflow channel, which can reduce or avoid the formation of condensation on the surface of the functional module. Furthermore, the condensation formed in the airflow channel is less likely to drip onto the functional module, reducing or avoiding the risk of water damage to the functional module. In addition, the airflow channel, as a channel for heat exchange between the accommodating space and the outside environment, can improve the heat dissipation effect on the functional module.

[0025] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0026] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0027] Figure 1 This is a schematic diagram of the structure of a refrigerator provided in an embodiment of this disclosure;

[0028] Figure 2 This is a schematic diagram of the structure of a refrigerator door provided in an embodiment of this disclosure;

[0029] Figure 3 This is an exploded view of a refrigerator door provided in an embodiment of this disclosure;

[0030] Figure 4 yes Figure 3 Enlarged diagram of section A in the middle;

[0031] Figure 5 This is a schematic diagram of the structure of the refrigerator cover provided in an embodiment of this disclosure;

[0032] Figure 6 This is a schematic diagram of the structure of the refrigerator components that form the accommodating space according to an embodiment of the present disclosure;

[0033] Figure 7 This is a cross-sectional schematic diagram of the refrigerator in the storage space provided in the embodiment of this disclosure;

[0034] Figure 8 This is a schematic diagram of the structure of the sensing module of the refrigerator provided in an embodiment of this disclosure.

[0035] Figure label:

[0036] 100: Housing; 200: Door; 201: Accommodation space; 210: Top surface; 220: Left end surface; 300: Functional module; 301: Sensing module; 310: Human sensing unit; 311: Sensing matrix; 320: Wireless communication unit; 330: Antenna system; 331: Radiation unit; 340: PCB substrate; 350: Connecting harness; 360: Power management unit; 370: Processor; 400: Cover plate; 410: Edge; 420: Airflow channel; 430: Step; 440: Snap-fit ​​part; 450: Snap-fit ​​mating part; 460: Drain hole; 470: Mounting bracket; 480: Wire clamp assembly. Detailed Implementation

[0037] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0038] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0039] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0040] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" 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, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0041] Unless otherwise stated, the term "multiple" means two or more.

[0042] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0043] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0045] As people's living standards continue to improve, users' demand for intelligent refrigeration equipment is also gradually increasing. Existing intelligent refrigeration equipment usually includes power modules with communication, display, or sensing components. The addition of power modules complicates the installation process. To optimize the installation process of refrigerator power modules, a refrigeration device is disclosed in related technologies, including a cabinet and a receiving slot for receiving power modules. The cabinet includes at least one wall, and the wall includes at least one exposed end. The receiving slot is disposed within the wall and has an entrance formed at the end. The power module includes a power element with wireless communication function. The receiving slot constructs a receiving space suitable for accommodating the power element, and the power element is spaced a specific distance from the side wall of the receiving space.

[0046] The problem with this technology is that the inner wall of the refrigeration equipment door is in contact with the low-temperature environment of the refrigeration unit. When indoor air enters the receiving groove inside the door, condensation is easily generated, which increases the risk of short circuit damage to the electrical modules inside the receiving groove.

[0047] To reduce or prevent condensation in the door's internal storage space, combined with Figure 1-8As shown, this embodiment of the present disclosure provides a refrigerator, which includes a cabinet 100, a door 200, a functional module 300, and a cover 400. The cabinet 100 has a refrigeration space with an opening at the front. The door 200 is closable and is disposed on the cabinet 100. The side end of the door 200 is recessed inward to form a receiving space 201. The functional module 300 is disposed in the receiving space 201. The cover 400 covers the opening of the receiving space 201. The cover 400 extends circumferentially into the receiving space 201 and has a baffle 410. The baffle 410 and the side wall of the receiving space 201 form an airflow channel 420.

[0048] In this embodiment of the disclosure, the refrigerator includes a cabinet 100 and doors. The refrigerator can be a single-door refrigerator or a multi-door refrigerator. When the refrigerator is a multi-door refrigerator, the storage space 201 is located in one or more of the doors.

[0049] The side of the door 200 facing the user is the outer side, and the side facing the refrigerated space is the rear side. The door 200 also includes four side end faces located in the four directions: top end face 210, bottom end face, left end face 220, and right end face. A side end face of the door 200 refers to one of the aforementioned four side end faces. When the side end face is recessed inward, it forms an externally open receiving space 201. Taking the receiving space 201 located on the top end face 210 as an example, the top opening of the receiving space 201...

[0050] The accommodating space 201 is used to house the functional module 300, which, exemplarily, has human sensing and wireless communication functions.

[0051] The refrigerator also includes a cover 400, which closes to the opening of the receiving space 201, thus creating a relatively enclosed space inside the receiving space 201. The cover 400 has a retaining edge 410, which is circumferentially arranged around the cover 400. The retaining edge 410 extends from the cover 400 into the receiving space 201; when the receiving space 201 is formed at the top surface 210, the retaining edge 410 extends downwards from the downward-facing side of the cover 400. There is a certain distance between the retaining edge 410 and the side wall of the receiving space 201, thus forming a channel that allows airflow. Air from the refrigerator's environment enters the receiving space 201 through the gap between the cover 400 and the door 200 and flows through the airflow channel 420. The retaining edge 410 prevents direct contact between the air and the functional module 300, reducing the risk of condensation forming on the surface of the functional module 300. When air flows through the airflow channel 420, it comes into contact with the sidewalls of the baffle 410 and the receiving space 201. Even if condensation forms, it will flow downwards along the outer surface of the baffle 410 or the inner wall of the receiving space 201, making it less likely to drip onto the functional module 300. Furthermore, when the functional module 300 is at a high temperature, the cool air flowing in or out of the airflow channel 420 generates thermal convection, which can dissipate heat from the functional module 300.

[0052] The refrigerator provided in this embodiment has an opening in the accommodating space 201 of the functional module 300 located on the side end face of the refrigerator door, which facilitates the assembly of the functional module 300. The baffle 410 of the cover plate 400 and the side wall of the accommodating space 201 form an airflow channel 420, which can reduce or avoid the formation of condensation on the surface of the functional module 300. Furthermore, the condensation formed in the airflow channel 420 is less likely to drip onto the functional module 300 when it falls, thus reducing or avoiding the risk of water damage to the functional module 300. In addition, the airflow channel 420 serves as a channel for heat exchange between the accommodating space 201 and the outside world, which can improve the heat dissipation effect of the functional module 300.

[0053] Optionally, the periphery of the opening of the accommodating space 201 is provided with a step 430, and at least a portion of the periphery of the cover plate 400 overlaps the step 430.

[0054] The periphery of the opening of the accommodating space 201 is recessed to form a step 430, and the edge of the cover plate 400 overlaps with the step 430. The retaining flange 410 is located on the inner side of the edge of the cover plate 400. This arrangement facilitates the positioning and installation of the cover plate 400. In addition, the step 430 at the edge of the opening can reduce the height of the cover plate 400 protruding from the side end face.

[0055] Optionally, the top surface of the cover plate 400 is flush with the side end face of the structure receiving space 201.

[0056] This design improves the aesthetics of the door 200.

[0057] Optionally, the cover plate 400 extends into the receiving space and is provided with a snap-fit ​​part 440, and the inner wall of the receiving space 201 is provided with a snap-fit ​​mating part 450. One of the snap-fit ​​part 440 and the snap-fit ​​mating part 450 is a hook and the other is a block, and the hook and the block are snapped together.

[0058] The latching portion 440 of the cover plate 400 extends into the receiving space 201. In some cases, a portion of the flange 410 serves as the latching portion 440. In other cases, the latching portion 440 is located outside the flange 410. When the cover plate 400 is closed onto the receiving space 201, the latching portion 440 of the cover plate 400 engages with the latching mating portion 450 of the inner wall of the receiving space 201, thereby allowing the cover plate 400 to be latched onto the opening of the receiving space 201. With this arrangement, the cover plate 400 can be fixed or pre-fixed.

[0059] Optionally, the top surface 210 of the door 200 is recessed downward to form a receiving space 201; and / or, a drainage hole 460 is provided at the bottom of the receiving space 201.

[0060] The top surface 210 of the door 200 is recessed downwards to form a receiving space 201. The receiving space 201 and the cover plate 400 are located in a position that is not easily noticed by the user, which can further improve the aesthetics of the door 200. In addition, the functional module 300 located in the receiving space 201 is not easily obstructed, which can improve the clarity of the signal transmission and reception of the functional module 300 when the functional module 300 has identification or communication functions.

[0061] A drain hole 460 is provided at the bottom of the receiving space 201, so that condensate formed in the receiving space 201 can be discharged smoothly. This arrangement can further reduce the risk of water entering the functional module 300.

[0062] Optionally, the refrigerator also includes a mounting bracket 470 disposed in the receiving space 201, and the functional module 300 is mounted on the mounting bracket 470; wherein the mounting bracket 470 and the components forming the receiving space 201 are an integral structure.

[0063] The mounting bracket 470 is used to fix the functional module 300. The mounting bracket 470 allows the functional module 300 to be fixed in a preset position, reducing or preventing water ingress or malfunction due to displacement of the functional module 300. The mounting bracket 470 and the components forming the receiving space 201 are integrated into a single structure, reducing the number of independent parts and lowering the cost of the refrigerator.

[0064] Optionally, the door body 200 includes a top frame, a bottom frame, a left side frame, and a right side frame. The top frame, bottom frame, left side frame, and right side frame are connected end to end to form a frame. The door body 200 also includes a front panel, which is disposed on the front side of the frame.

[0065] This design facilitates the production and assembly of the door body 200.

[0066] Optionally, the top frame is made of plastic, and the upward-facing side of the top frame has a receiving space 201.

[0067] On the one hand, the plastic top frame can reduce signal obstruction; on the other hand, the plastic top frame facilitates injection molding to form the receiving cavity and mounting bracket 470. Furthermore, the plastic top frame has poor thermal conductivity, which can reduce condensation formed inside the receiving space 201 by hot and humid air.

[0068] Optionally, the left and right frames can be made of metal.

[0069] This improves the structural strength of the door 200, and the outward-facing surfaces of the left and right frames are visible to the user, thus enhancing the aesthetics of the door 200.

[0070] Optionally, the bottom frame can be made of metal.

[0071] This can further enhance the structural strength of the door 200 and improve the aesthetics of the refrigerator.

[0072] Optionally, the refrigerator also includes a drain pipe for directing condensate from the drain hole 460 to the outside of the door 200.

[0073] This prevents condensation from accumulating inside the door 200.

[0074] Optionally, the refrigerator also includes a wire clamp assembly 480 and a connecting wire harness 350, wherein the wire clamp assembly 480 is disposed in the receiving space 201; the connecting wire harness 350 has a first end connected to the functional module 300, and the first segment of the connecting wire harness 350 extending from the functional module 300 is fixed to the wire clamp assembly 480 to be constrained into a preset shape.

[0075] The wire clamp assembly 480 is used to secure the wire harness and constrain the connecting wire harness 350 into a preset shape. Exemplarily, the connecting wire harness 350 includes signal lines and power lines. To prevent the current from the power line from interfering with the weak signal of the signal line, it is usually necessary to route the wires separately or take isolation measures. The refrigerator provided in this embodiment of the present disclosure, by constraining the shape of the connecting wire harness 350 with the wire clamp assembly 480, can reduce the interference caused by the current from the power line to the signal line by arranging the wire harness into a preset shape. The signal lines and power lines of the connecting wire harness 350 can be bundled together for routing. This makes the functional module 300 of the refrigerator easier to assemble.

[0076] Optionally, from the first end to the second end of the connecting harness 350, the connecting harness 350 is constrained in a straight line shape and a loop shape, respectively.

[0077] The linear structure, by fixing the spacing between wires, avoids messy tangling of wires and reduces electromagnetic coupling between adjacent wires. The fixed spacing enables physical isolation and suppresses the coupling of power supply noise to signal lines. The linear structure allows the metal shielding layer of the wire harness to form a complete Faraday cage, blocking interference from external electromagnetic fields on the signal, and also blocking the electromagnetic field formed by the connecting wire harness 350 from infecting the signal of the antenna system 330 of the functional module 300.

[0078] A looped wire harness is equivalent to an air-core inductor. For high-frequency interference signals (such as spike noise from switching power supplies), the inductor presents high impedance, which can suppress noise propagation through the wire harness. The parasitic inductance of the looped wire harness can slow down the rate of change of current and reduce transient voltage spikes, thereby reducing interference to sensitive signals.

[0079] The straight segment primarily suppresses low-to-mid-frequency crosstalk and radio frequency resonance interference through physical isolation and length control. The loop segment primarily suppresses high-frequency noise and transient impulse interference through inductor filtering and buffering current changes. Constraining the 350° shape of the connecting harness also creates a layered suppression of broadband interference.

[0080] Optionally, the length of the straight portion of the first segment of the connecting wire harness 350 is greater than or equal to 6 centimeters.

[0081] The wavelengths of 2.4GHz and 24GHz signals are approximately 12.5 cm and 1.25 cm, respectively, and are sensitive to the geometry of the transmission path. When the length of the first segment of the harness is greater than or equal to 6 cm, standing waves can be avoided due to the harness length being an integer multiple of the wavelength, thereby reducing interference caused by signal reflection and superposition; a longer straight segment can reduce the probability of near-field coupling between the harness and surrounding metal components or other harnesses.

[0082] The frequency difference between low-frequency power signals (such as DC 5V) and high-frequency signals transmitted via power lines is significant. Straight segments ≥6 cm can enhance the physical distance between the two through spatial isolation, reducing conducted and radiated coupling. Conducted coupling occurs when power line noise is coupled to signal lines due to parasitic inductance and capacitance effects. Radiated coupling occurs when the radiated field strength of a long, straight power line attenuates more rapidly with distance, thus reducing radiated interference to antenna systems (especially 24GHz microwave antennas).

[0083] In addition, the distance between straight segments is greater than or equal to 6 cm, which can better isolate the loop part of the wire harness from the functional module 300, and can also reduce the interference of mechanical vibration on the signal.

[0084] Optionally, the functional module 300 includes a human sensing unit 310 and a wireless communication unit 320.

[0085] Equipped with a human sensor unit 310, the refrigerator can control door opening and display content via signals detected by the human sensor unit 310. Equipped with a wireless communication unit 320, the refrigerator can connect to a network via Wi-Fi or Bluetooth for remote control. The integrated arrangement of the human sensor unit 310 and the wireless communication unit 320 reduces the number of modules and simplifies refrigerator manufacturing and assembly. The human sensor unit 310 and the wireless communication unit 320 are located in the receiving space 201 of the door body 200, minimizing signal obstruction.

[0086] Optionally, the refrigerator includes an antenna system 330, the frequency band of which includes 2.4 GHz corresponding to the wireless communication unit 320 and 24 GHz corresponding to the human sensing unit 310.

[0087] The antenna system 330 includes a 2.4 GHz band corresponding to the wireless communication unit 320 and a 24 GHz band corresponding to the human sensing unit 310. The 2.4 GHz and 24 GHz bands are significantly spaced apart and have a significant frequency difference, which can effectively reduce the probability of mutual interference between wireless communication signals and human sensing signals, and reduce co-channel or adjacent-channel interference.

[0088] Optionally, the human sensing unit 310 and the wireless communication unit 320 share the radiating element 331 of the antenna system 330.

[0089] The antenna system 330 includes a radiating element 331, which is connected to the PCB substrate. The human sensing unit 310 and the wireless communication unit 320 share the radiating element 331. The antenna system 330 coordinates communication and sensing functions through a time-division multiplexing mechanism.

[0090] In traditional solutions, the Wi-Fi module (2.4GHz) and the microwave human body sensing module (24GHz) require independent antennas (such as the PCB inverted F antenna for Wi-Fi and the microstrip patch antenna for microwave). The shared radiating unit 331 can cover both the 2.4GHz and 24GHz frequency bands simultaneously through a wideband antenna design (such as a dual-band common aperture antenna), reducing the number of antennas, reducing the substrate area and the cost of RF components.

[0091] The timing control circuit of the main control chip switches the radiation unit 331 to the wireless communication unit 320 or the human sensing unit 310 in different time slices to avoid radio frequency interference caused by the simultaneous operation of the two units.

[0092] Optionally, the human sensing unit 310 and the wireless communication unit 320 share a PCB substrate.

[0093] In traditional designs, the human sensing unit 310 and the wireless communication unit 320 are independent modules that need to be connected to the motherboard via ribbon cables. The length of these ribbon cables can lead to transmission line effects. By sharing a PCB substrate, internal signals are transmitted through on-board traces, shortening the path and reducing the impact of parasitic parameters.

[0094] In traditional solutions, the Wi-Fi module and the human body sensing module are designed independently, requiring two separate PCB substrates, peripheral circuits, and packaging structures. Sharing a common substrate reduces the number of components, lowers material costs, and reduces the size of the sensing module 301. A single substrate replaces multiple module combinations, reducing soldering, debugging, and assembly steps, improving production efficiency, and lowering labor costs.

[0095] Furthermore, this also reduces the size of the functional module 300. The traditional split solution has a total size of ≥100mm×60mm×25mm, while the solution using a shared PCB substrate can reduce the size of the functional module 300 to 48mm×28mm×11mm.

[0096] Optionally, the human sensing unit 310 and the wireless communication unit 320 share a power supply harness.

[0097] In traditional designs, two independent units require separate power supply harnesses. A shared harness, however, integrates two power supply lines into one, reducing the number of harnesses and the complexity of their arrangement. Fewer harnesses prevent wires from crossing and tangling, saving wiring space inside the refrigerator (especially in narrow spaces like the door panel) and making the structure more compact. The single-harness connection simplifies the production process; workers don't need to connect two separate harnesses, reducing the probability of assembly errors and improving production efficiency. Traditional independent harnesses require multiple connectors, while a shared harness reduces the number of connectors, lowering the probability of circuit failures due to poor contact or oxidation. A centralized power supply harness allows for easier electromagnetic shielding, reducing electromagnetic interference between different units and improving signal transmission stability.

[0098] Building upon the previous design using a shared PCB substrate, the shared power supply harness can further promote the deep integration of the human sensing unit 310 and the wireless communication unit 320, aligning with the design trend of miniaturization and integration in home appliances. For ultra-thin doors 200 or built-in refrigerators, the compact harness design can better adapt to narrow spaces, avoiding increased door thickness or assembly difficulties caused by bulky harnesses.

[0099] Optionally, the PCB substrate is provided with a power management unit 360, which is connected to a power line and simultaneously powers the human sensing unit 310 and the wireless communication unit 320.

[0100] The design of the integrated power management unit 360 on the PCB substrate simplifies the structure of the sensing module 301 by unifying the power supply structure, reducing the number of power supply harnesses and mitigating the interference of current in the power supply harnesses on the signal.

[0101] Optionally, the PCB substrate is provided with a power management unit 360, which is connected to a power line and simultaneously powers the human sensing unit 310 and the wireless communication unit 320.

[0102] The design of the integrated power management unit 360 on the PCB substrate simplifies the structure of the sensing module 301 by unifying the power supply structure, reducing the number of power supply harnesses and mitigating the interference of current in the power supply harnesses on the signal.

[0103] Optionally, the wireless communication unit 320 includes a processor 370 for processing wireless signals and human body sensing signals.

[0104] The design of sharing the processor 370 with the wireless communication unit 320 and the human body sensing unit reduces system cost and complexity through hardware resource integration.

[0105] Optionally, the human sensing unit 310 includes a sensing matrix 311 facing the user's door opening position.

[0106] For example, the sensing matrix 311 includes a multi-element microwave antenna array. Orienting the sensing matrix 311 towards the outside of the refrigerator door 200 allows direct coverage of the user's operating area (such as the range of hand movement when opening the door and the user's standing position), effectively detecting approach and door-opening behaviors. The sensing matrix 311 faces away from the refrigerator's interior space, reducing the impact of interference sources such as changes in food placement and internal fan operation on the sensing signal. The area outside the door 200 is typically an open environment, with the main reflective surfaces being the ground and walls, resulting in a simple signal reflection path and facilitating the extraction of effective human echoes using multipath signal separation algorithms.

[0107] Optionally, the wireless communication unit 320 includes a radiating unit 331, which faces outward from the door 200.

[0108] The radiation unit 331 faces outward from the refrigerator door 200, directly targeting the user's daily operating area. The beam of the 24GHz microwave radiation unit can cover the range of the user's movements, such as standing, waving, and approaching, effectively capturing human motion. The radiation unit 331 faces away from strong reflective surfaces such as metal shelves and cooling components inside the refrigerator, reducing interference from reflected waves on the sensing signal.

[0109] The foregoing description and accompanying drawings fully illustrate 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. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. 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 its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A refrigerator, characterized in that, include: The box has a refrigerated space with an opening at the front. A door is provided in the box body that can be opened and closed, and the side end of the door is recessed inward to form an accommodating space; Functional modules are located within the accommodating space; A cover plate covers the opening of the receiving space, and the cover plate is provided with a baffle extending circumferentially into the receiving space. The baffle and the side wall of the receiving space form an airflow channel.

2. The refrigerator according to claim 1, characterized in that, The opening of the accommodating space is provided with a step around its perimeter, and at least a portion of the perimeter of the cover plate overlaps the step.

3. The refrigerator according to claim 1, characterized in that, The cover plate extends into the accommodating space and is provided with a snap-fit ​​part. The inner wall of the accommodating space is provided with a snap-fit ​​mating part. One of the snap-fit ​​part and the snap-fit ​​mating part is a hook and the other is a block. The hook and the block are snapped together.

4. The refrigerator according to claim 1, characterized in that, The top surface of the door is recessed downwards to form the receiving space; and / or The bottom of the accommodating space is provided with a drainage hole.

5. The refrigerator according to claim 1, characterized in that, Also includes: A mounting bracket is provided in the receiving space, and the functional module is mounted on the mounting bracket; The mounting bracket and the component forming the accommodating space are an integral structure.

6. The refrigerator according to claim 5, characterized in that, Also includes: The wire clamp assembly is located within the receiving space; A connecting wire harness, the first end of which is connected to the functional module, and the first segment of the connecting wire harness extending from the functional module is fixed to the wire clamp assembly to be constrained into a preset shape.

7. The refrigerator according to claim 6, characterized in that, From the first end to the second end of the connecting wire harness, the connecting wire harness is constrained in a straight line shape and a loop shape in turn.

8. The refrigerator according to claim 7, characterized in that, The length of the straight portion of the first segment of the connecting wire harness is greater than or equal to 6 centimeters.

9. The refrigerator according to any one of claims 1 to 8, characterized in that, The functional module is a sensing module, which includes a human sensing unit and a wireless communication unit, wherein: The human sensing unit and the wireless communication unit share a common PCB substrate; and / or, The human sensing unit and the wireless communication unit share a power supply harness; and / or, The human sensing unit and the wireless communication unit share the radiating element of the antenna system.

10. The refrigerator according to claim 9, characterized in that, The human-sensing unit includes a sensing matrix oriented toward the user's door opening position; and / or, The wireless communication unit includes a radiating unit, which faces outward from the door.

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