Drawer assembly and refrigeration equipment

Abstract

The drawer assembly is applied to a freezing chamber and comprises a drawer body, a double-layer panel, a hollow cavity, a cold guide plate and an air outlet, a containing cavity is formed in the drawer body and comprises a bottom plate, the double-layer panel is arranged at one end of the containing cavity, an air inlet is formed in the double-layer panel, and the hollow cavity is communicated with the bottom plate. The air inlet is formed in the end away from the bottom plate, the hollow cavity is formed in the double-layer panel and used for circulating gas, the air inlet is communicated with the hollow cavity, the hollow cavity is communicated with an external cold source through the air inlet to form a quick cooling runner, and the cold guide plate is arranged in the quick cooling runner and used for uniformly conducting the gas; and the air outlet communicates with the rapid cooling flow channel and is used for transmitting the gas conducted by the cold conduction plate to the containing cavity. The problem of poor quick-freezing effect is solved through the quick-cooling flow channel formed by the double-layer panel and the hollow cavity, the high-position air inlet and the uniform cold conduction function of the cold conduction plate.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and in particular to a drawer assembly and a refrigeration equipment. Background Art

[0002] The freezer and refrigerator compartments of household refrigerators are equipped with food storage drawers. In the quick-freezing scenario, for high-moisture ingredients or foods that need to be quickly locked in freshness, the refrigeration mode can easily lead to excessive growth of ice crystals, and the quick-freezing performance needs to be enhanced by improving the air circulation efficiency.

[0003] Refrigeration vents can be set on the surface of the drawer to guide the cold air circulation through the air flow channel. For the quick-freezing function, some refrigeration equipment further integrates a quick-freezing duct structure inside the drawer, and uses directional airflow to accelerate the heat exchange process. That is, by optimizing the duct layout and the vent distribution density, the centralized delivery of cold air flow can be achieved in a limited space.

[0004] However, when ingredients are stacked, the refrigeration vents in the drawer are easily blocked, resulting in low cold air flow penetration efficiency and poor quick-freezing effect. Summary of the invention

[0005] The present application provides a drawer assembly and a refrigeration device to solve the problem of poor quick-freezing effect.

[0006] In a first aspect, the present application provides a drawer assembly, applied to a freezer compartment, comprising:

[0007] A drawer body, wherein a cavity is formed inside the drawer body, and the cavity includes a bottom plate;

[0008] A double-layer panel, the double-layer panel is arranged at one end of the cavity, the double-layer panel is provided with an air inlet, and the air inlet is arranged at an end away from the bottom plate;

[0009] The hollow cavity is arranged in the double-layer panel and is used for circulating gas. The air inlet is connected with the hollow cavity, and the hollow cavity is connected with an external cold source through the air inlet to form a rapid cooling channel;

[0010] A cold conduction plate, which is arranged in the rapid cooling air duct and is used for uniformly conducting the gas;

[0011] The air outlet is connected to the quick cooling channel and is used to transmit the gas conducted by the cooling plate to the cavity.

[0012] In some feasible embodiments, a support assembly is further included;

[0013] The cooling plate is connected to the hollow cavity through a supporting assembly;

[0014] The support assembly includes a support rail and a positioning protrusion;

[0015] The support rail is arranged at the bottom of the cavity, and the number of the positioning protrusions is multiple, and the multiple positioning protrusions are arranged on the support rail;

[0016] A clamping groove is arranged on the cold conduction plate, and the positioning protrusion is cooperatively connected with the clamping groove.

[0017] In some feasible embodiments, the cooling plate is a composite structure;

[0018] The composite structure includes a first layer and a second layer, the material of the first layer is carbon fiber, and the material of the second layer is an aluminum plate;

[0019] The first layer is arranged on the contact surface between the cooling plate and the hollow cavity, and the second layer is connected to the first layer;

[0020] The first layer is used to accelerate the cooling capacity, and the second layer is used to evenly distribute the received cooling capacity laterally.

[0021] In some feasible embodiments, the air outlet includes a first air outlet and a second air outlet;

[0022] The first air outlet is arranged on the cavity, the second air outlet is arranged on the double-layer panel, and the second air outlet and the first air outlet form a stepped air outlet structure.

[0023] In some feasible embodiments, the hollow cavity includes a horizontal pivot and a gear transmission mechanism;

[0024] The horizontal pivot is arranged in parallel on the double-layer panel, and drives the hollow cavity to rotate through the gear transmission mechanism;

[0025] The gear transmission mechanism includes a rack track, a driving gear and a connecting rod assembly;

[0026] The rack track is arranged on the side wall of the drawer body, the driving gear is meshed with the rack track, and the connecting rod assembly is used for driving the gear and the horizontal pivot.

[0027] In some feasible embodiments, a guide vane and an eccentric motor are provided in the hollow cavity. The guide vane is driven by the eccentric motor to generate mechanical vibration. The bottom surface of the air outlet is at an inclined angle, and the vibration direction of the guide vane forms a preset angle with the normal direction of the inclined angle.

[0028] In some feasible embodiments, a semiconductor cooling fin is provided in the cooling plate;

[0029] The hot end of the semiconductor cooling plate is thermally coupled with the cold air flow channel of the hollow cavity, and the cold end of the semiconductor cooling plate is thermally connected with the bearing surface of the cavity;

[0030] A temperature sensor is provided on the surface of the cold conduction plate, and the temperature sensor is used to detect the temperature data in the cavity;

[0031] Also includes controller:

[0032] The controller is configured as:

[0033] When the temperature data is greater than the temperature threshold, a command is sent to the semiconductor cooling chip to control the operation of the semiconductor cooling chip;

[0034] When the temperature data is less than or equal to the temperature threshold, a command is sent to the semiconductor cooling chip to control the semiconductor cooling chip to enter a low power consumption mode.

[0035] In some feasible embodiments, a step protection component is provided outside the air inlet, and the step protection component includes:

[0036] a first baffle, wherein the width of the first baffle in the horizontal direction is greater than the width of the air inlet;

[0037] a second baffle, the second baffle and the first baffle form a preset angle, and an air guide gap is formed at the connection between the first baffle and the second baffle;

[0038] The ventilation area of ​​the air guide gap is smaller than the ventilation area of ​​the air inlet.

[0039] In a second aspect, the present application provides a refrigeration device, comprising a freezer compartment, an air supply duct, and a drawer assembly according to any one of claims 1 to 8;

[0040] The drawer assembly is disposed in the freezer compartment;

[0041] An air duct air supply port is arranged on the air supply duct, and the air supply duct is communicated with the quick cooling flow channel of the drawer assembly through the air duct air supply port.

[0042] In some feasible embodiments, a main air duct is provided on the freezing chamber, a diversion hole is provided on the air supply duct, and the air supply duct is connected to the main air duct through the diversion hole;

[0043] A guide plate is provided in the diversion hole, and an elastic hinge portion is provided on the guide plate, and the guide plate is used to deflect when impacted by the airflow of the main air duct;

[0044] When the air pressure in the main air duct is higher than the air pressure threshold, the airflow in the main air duct is diverted to the quick cooling flow channel;

[0045] The rapid cooling runner also includes:

[0046] A multi-modal sensing unit, used to collect characteristic parameters in the cavity, the characteristic parameters including one or more combinations of temperature gradient distribution parameters, load pressure distribution parameters, and airflow component concentration parameters;

[0047] A feature processing unit, used for converting the feature parameter into an airflow level signal;

[0048] The regulating unit is used to increase the flow area of ​​the diversion hole according to the airflow level signal when the airflow level signal is greater than or equal to the level threshold, so as to divert the airflow to the quick cooling channel.

[0049] It can be seen from the above technical solutions that the present application provides a drawer assembly and a refrigeration device, which is applied to a freezer compartment and includes: a drawer body, a double-layer panel, a hollow cavity, a cold conduction plate, and an air outlet. A cavity is formed inside the drawer body, and the cavity includes a bottom plate. The double-layer panel is arranged at one end of the cavity. An air inlet is arranged on the double-layer panel, and the air inlet is arranged at an end away from the bottom plate. The hollow cavity is arranged in the double-layer panel for circulating gas. The air inlet is connected to the hollow cavity, and the hollow cavity is connected to an external cold source through the air inlet to form a quick-cooling flow channel. The cold conduction plate is arranged in the quick-cooling air channel for uniformly conducting gas; the air outlet is connected to the quick-cooling flow channel for transmitting the gas conducted by the cold conduction plate to the cavity. The quick-cooling flow channel formed by the double-layer panel and the hollow cavity, and through the high-position air inlet, combined with the cold uniform conduction function of the cold conduction plate, can solve the problem of poor quick-freezing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0051] Figure 1 A side view of a drawer assembly provided in an embodiment of the present application;

[0052] Figure 2 An axonometric view of a drawer assembly provided in an embodiment of the present application;

[0053] Figure 3 A schematic diagram of an operation scenario between a refrigeration device and a mobile terminal provided in an embodiment of the present application;

[0054] Figure 4 A schematic diagram of the hardware configuration of the refrigeration equipment provided in an embodiment of the present application. Description of the drawings:

[0056] Among them, 1-drawer body, 2-cavity, 3-double-layer panel, 4-hollow cavity, 5-air inlet, 6-cold conduction plate, 7-air outlet, 100-refrigeration equipment, 200-mobile terminal, 210-communication device, 220-sensor, 230-refrigeration component, 240-display, 250-controller, 260-user input interface. DETAILED DESCRIPTION

[0057] The following embodiments are described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following embodiments do not represent all implementations consistent with the present application. They are only examples of systems and methods consistent with some aspects of the present application as detailed in the claims.

[0058] The terms "first", "second", "third", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0059] The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0060] The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and / or software code that is capable of performing the functions associated with that element.

[0061] In the quick-freezing scenario, high-moisture ingredients, such as seafood, berry fruits, leafy vegetables, or high-value foods that need to be quickly preserved, such as dairy products, have high requirements for refrigeration efficiency. The cell structure of such ingredients has a high water content. If the freezing speed is insufficient, large ice crystals will form inside the cells, affecting the taste and nutritional value. Therefore, it is necessary to quickly cool the center temperature of the ingredients to below -18°C within a preset time to form tiny ice crystals.

[0062] Some refrigerators are equipped with a special drawer structure for quick freezing needs. In some embodiments, dense refrigeration air outlets are set on the inner wall of the drawer, and the low-temperature airflow generated by the evaporator is directly introduced into the drawer cavity through the air duct.

[0063] The dedicated drawer structure can effectively increase the cooling speed when it is empty or lightly loaded. However, when the user stacks the ingredients in multiple layers, the upper ingredients block the air outlet path, and the lower ingredients are deformed by pressure and clog the gaps in the bottom cooling plate, resulting in the inability of cold air to penetrate the gaps in the ingredients, forming local high-temperature areas and significantly reducing the quick-freezing efficiency.

[0064] To solve the above problem, in some embodiments, an independent air duct is set inside the drawer. The independent air duct can be a spiral surround air duct. Spiral guide grooves are set on the side walls and back panel of the drawer. After the cold air enters from the top inlet, it is transported downward along the spiral path, and the airflow coverage range is increased by centrifugal force.

[0065] It is also possible to provide a grid-layered air duct by setting multiple layers of horizontal guide grilles inside the drawer to divide the cavity into several independent air flow layers, with independent air outlets on each layer.

[0066] By increasing the airflow path length and distribution density, the contact area between cold air and food is increased.

[0067] In some embodiments, a high-pressure jet outlet can also be set at a specific position of the drawer. The high-pressure jet outlet can be a top matrix outlet. A plurality of micro jet outlets are arranged on the top plate of the drawer, and the cold air is driven by a high-pressure fan to spray vertically downward.

[0068] The high-pressure jet air outlet can also be a side-impact air outlet. The inclined air outlets are symmetrically arranged on the left and right side walls of the drawer so that the airflows on both sides collide in the middle of the cavity to form turbulence, thereby enhancing the penetration by increasing the local airflow speed.

[0069] The dedicated drawer structure can also improve the heat conduction efficiency by introducing solid cooling media, such as the metal cooling net bag, which uses aluminum alloy woven mesh as a food container, and the mesh structure allows the cold air to directly contact the food. Another example is the phase change cold storage tray, which embeds a sealed cavity filled with cold storage agent at the bottom of the drawer and uses the solidification of phase change material to release cold.

[0070] It can reduce the dependence on airflow, but it is limited by the thermal conductivity of the medium and the matching degree of the shape of the food. In actual application, poor contact may easily lead to uneven cold transfer.

[0071] Moreover, in the above-mentioned drawer structure, when the stacking height of the food exceeds the preset value of the drawer cavity height, the upper food forms a physical barrier, which makes it impossible for the cold air flowing out of the top vent to effectively penetrate into the middle and lower layers. High-moisture food releases a large amount of water vapor during the quick freezing process, which condenses into a frost layer attached to the vent surface after being cooled.

[0072] To solve the above problems, in some embodiments, dense micro air vents can be set on the top plate, side walls and bottom of the drawer to cover the gaps between the ingredients through multiple air outlets. However, the dispersed airflow leads to a decrease in air pressure per unit area, resulting in reduced penetration. Therefore, the cold airflow penetration efficiency is low and the quick freezing effect is poor.

[0073] To solve the problem of low cold air flow penetration efficiency and poor quick freezing effect, such as Figure 1 , Figure 2 As shown, some embodiments of the present application provide a drawer assembly, which is applied to a freezer compartment, including:

[0074] The drawer body 1 may be a pull-out box, and a cavity 2 is formed inside the drawer body 1. The cavity 2 is formed by a bottom plate and side walls, and the bottom plate is used to carry articles.

[0075] A double-layer panel 3 is provided at one end of the cavity 2, i.e., the front end of the cavity 2. A hollow cavity 4 is formed between the double-layer panels 3. The double-layer panel 3 is composed of a front panel and a rear panel. An air inlet 5 is provided on the double-layer panel 3. The air inlet 5 is provided at an end away from the bottom plate. The air inlet 5 is provided at the top of the guide panel, away from the bottom plate. The double-layer panel 3 forms a cold air input channel. The high-position air inlet 5 can reduce the probability of blockage by accumulation of objects.

[0076] The hollow cavity 4 is used for circulating gas, the air inlet 5 is connected to the hollow cavity 4, and the hollow cavity 4 is connected to the external cold source through the air inlet 5 to form a rapid cooling flow channel, and the external cold source is introduced into the cold guide plate 6 area through the cavity flow channel.

[0077] The cooling plate 6 is arranged in the rapid cooling air duct, and the surface of the cooling plate 6 may be a corrugated or honeycomb structure for uniformly conducting the gas.

[0078] In some embodiments, the cold conduction plate 6 is a composite structure, which includes a first layer and a second layer. The material of the first layer is carbon fiber, and the material of the second layer is an aluminum plate. The first layer is arranged on the contact surface between the cold conduction plate 6 and the hollow cavity 4, and the second layer is connected to the first layer. The first layer is used to accelerate the cooling, and the second layer is used to laterally evenly distribute the received cooling.

[0079] The carbon fiber layer, i.e. the first layer, is attached to the contact surface between the cold conducting plate 6 and the hollow cavity 4, and the aluminum plate, i.e. the second layer, is located outside the carbon fiber layer. The carbon fiber layer uses high thermal conductivity to quickly absorb cold, and the aluminum plate achieves uniform distribution through lateral heat diffusion.

[0080] In some embodiments, the thickness of the first layer can be 0.5-1mm, directly contacting the cold airflow in the hollow cavity 4, and using high thermal conductivity to quickly absorb the cold; the thickness of the second layer can be 2-3mm, bonded or welded to the carbon fiber layer, and the surface is processed into transverse grooves to evenly diffuse the cold in the horizontal direction.

[0081] The air outlet 7 is connected to the rapid cooling channel and is used to transmit the gas conducted by the cooling plate 6 to the cavity 2. It is located at the bottom of the double-layer panel 3. After passing through the cooling plate 6, the cold air enters the cavity 2 through the air outlet 7.

[0082] The rapid cooling channel formed by the double-layer panel 3 and the hollow cavity 4 and the high-position air inlet 5 combined with the cold uniform conduction function of the cold guide plate 6 can solve the problems of uneven cold distribution and airflow blockage in the freezing drawer, and improve the cold air flow penetration efficiency and the rapid freezing effect.

[0083] In some embodiments, a support assembly is further included, which is used to accurately position the cold conduction plate 6 and the hollow cavity 4 to avoid the cold conduction path from being offset, and the cold conduction plate 6 is connected to the hollow cavity 4 through the support assembly. The support assembly includes a support rail and a positioning protrusion, the support rail is arranged at the bottom of the cavity 2, the number of the positioning protrusions is multiple, and multiple positioning protrusions are arranged on the support rail, and a clamping groove is arranged on the cold conduction plate 6, and the positioning protrusion is matched and connected with the clamping groove.

[0084] The support rail is a metal or plastic rail extending longitudinally along the bottom plate of the cavity 2. Anti-slip grooves may be provided on the surface. The positioning protrusions may be hemispherical or cylindrical protrusions distributed on the support rail, with a height of 3-5 mm. The snap-in groove is a groove provided at the bottom of the cold conduction plate 6, which matches the shape of the positioning protrusion, and fixes the position of the cold conduction plate 6 by snapping. The cold conduction plate 6 is snapped with the positioning protrusion on the support rail through the snap-in groove at the bottom to prevent displacement or vibration when the cold air flows.

[0085] Exemplarily, in the cold air introduction stage, the cold air enters the hollow cavity 4 of the double-layer panel 3 through the air inlet 5, flows horizontally along the cavity, and enters the cold conduction stage. The cold air contacts the carbon fiber layer of the cold conduction plate 6. The carbon fiber quickly absorbs the cold and transfers it to the aluminum plate layer. The aluminum plate layer evenly distributes the cold to the entire surface of the cold conduction plate 6 through the transverse grooves, and enters the airflow distribution stage. After the cold air is dispersed by the cold conduction plate 6, it enters the cavity 2 through the air outlet 7 and diffuses upward along the bottom plate to cover the objects.

[0086] The double-layer panel 3 forms a closed cold air channel, and the composite structure of the cold conduction plate 6 ensures the cold absorption and distribution efficiency. The support rail and the positioning protrusion provide a fixed reference for the cold conduction plate 6 to avoid displacement caused by cold air impact, while reducing the contact area between the cold conduction plate 6 and the bottom plate, reducing cold loss.

[0087] To improve the uniformity of the cooling effect, in some embodiments, the air outlet 7 includes a first air outlet and a second air outlet, wherein the first air outlet is arranged on the side wall of the cavity 2, and the second air outlet is arranged at the bottom of the double-layer panel 3, and the second air outlet and the first air outlet form a stepped air outlet structure.

[0088] The first air outlet guides the main air flow to diffuse along the side wall, and the second air outlet supplements the cold air penetration at the bottom, realizing three-dimensional layered air supply, so that the cold air covers different areas of the cavity 2 in two stages. The opening direction of the first air outlet can be at an angle of 30°-45° with the bottom plate; the opening direction of the second air outlet can be vertically downward.

[0089] Illustratively, in the cold air diversion stage, after the cold air flows out of the hollow cavity 4, it is divided into two paths. The first path blows toward the middle of the cavity 2 at an inclined angle through the first air outlet, and the second path blows vertically downward toward the bottom of the cavity 2 through the second air outlet; in the covering stage, the airflow from the first air outlet covers the upper layer of the frozen goods, and the airflow from the second air outlet diffuses along the bottom plate to form cooling areas stacked up and down.

[0090] To maintain the efficiency of cold air input, in some embodiments, the hollow cavity 4 includes a horizontal pivot and a gear transmission mechanism. The horizontal pivot is arranged in parallel inside the double-layer panel 3, and both ends can be fixed by bearings; the hollow cavity 4 is driven to rotate by the gear transmission mechanism, and the gear transmission mechanism includes a rack track, a driving gear and a connecting rod assembly, wherein the rack track is arranged on the side wall of the drawer body 1, the driving gear is meshed with the rack track, and the connecting rod assembly is used to drive the gear and the horizontal pivot.

[0091] The rack track is longitudinally fixed on the two side walls of the drawer body 1, and its length matches the drawer pulling stroke. The driving gear meshes with the rack track, and the gear shaft is connected to the horizontal pivot through a connecting rod assembly. The gear transmission is triggered by the drawer pulling action, driving the hollow cavity 4 to rotate around the horizontal pivot, thereby adjusting the incident angle of cold air, optimizing the distribution of airflow in the cavity 2, and enhancing the cooling effect.

[0092] Exemplarily, when the drawer is pulled out, the rack track meshes with the drive gear to generate a rotational torque, which is transmitted to the horizontal pivot through the connecting rod assembly, driving the hollow cavity 4 to rotate. The rotation angle of the hollow cavity 4 is linearly related to the displacement of the drawer. Every 10 mm of pulling corresponds to a 1° rotation of the cavity, and the maximum deflection is ±15°. After the cold air flows out of the hollow cavity 4, 70% of the airflow diffuses downward along the side wall of the cavity 2 through the first air outlet, and 30% of the airflow acts on the bottom of the article through the second air outlet. The airflow gradient formed by the double air outlet allows the upper articles to be exposed to high-intensity cold air first, and the bottom articles are supplemented with cooling through the infiltrated airflow.

[0093] When the drawer is fully closed, the hollow cavity 4 is reset to a horizontal reference position so that the cold air is blown vertically into the cold conduction plate 6. During the pulling process, the cavity angle is adjusted with the displacement, and the contact angle between the cold air and the cold conduction plate 6 is adjusted.

[0094] Air is discharged from two stepped air outlets at different positions and angles, thereby expanding the coverage of cold air in the cavity 2. The horizontal pivot of the hollow cavity 4 and the gear transmission mechanism change the direction of the airflow before it enters the air outlet 7, so that the cold air can flow in the cavity 2, thereby enhancing the uniformity of the refrigeration effect and allowing items in different positions of the drawer assembly to be cooled.

[0095] To improve the uniformity of cooling, in some embodiments, a guide vane and an eccentric motor are provided in the hollow cavity 4. The guide vane is driven by the eccentric motor to generate mechanical vibration. The bottom surface of the air outlet 7 is at an inclined angle, and the vibration direction of the guide vane forms a preset angle with the normal direction of the inclined angle.

[0096] The guide vane is arranged in the hollow cavity 4, and its surface is wavy or serrated. The eccentric motor is fixed at one end of the guide vane shaft to drive the guide vane to swing periodically. The bottom surface of the air outlet 7 can be set at an inclination angle of 15°-30° with the horizontal plane, and the vibration direction of the guide vane is at an angle of 45°-60° with the normal direction of the inclined surface.

[0097] Exemplarily, the eccentric motor drives the guide vane to vibrate at a frequency of 10-20 Hz, and the wavy surface of the guide vane cuts the cold air into turbulent flow, which is guided through the inclined bottom surface of the air outlet 7 and diffused to different depth areas of the cavity 2 along a preset angle direction.

[0098] The vibration of the guide vane can promote the mixing of airflow. The coordination of the inclined bottom surface and the vibration direction optimizes the airflow injection angle and improves the refrigeration uniformity. The periodic vibration can peel off the attached frost, and the inclined air outlet 7 guides the crushed ice to slide off to prevent airflow blockage.

[0099] In some embodiments, a semiconductor cooling plate is also provided in the cold conduction plate 6, the hot end of the semiconductor cooling plate is thermally coupled with the cold air flow channel of the hollow cavity 4, the hot end faces the cold air flow channel of the hollow cavity 4, and the cold end of the semiconductor cooling plate is thermally connected with the bearing surface of the cavity 2, the cold end faces the bearing surface of the cavity 2.

[0100] A temperature sensor is provided on the surface of the cold conducting plate 6, and the temperature sensor is used to detect the temperature data in the cavity 2. The drawer assembly also includes a controller for receiving the temperature sensor signal and controlling the semiconductor cooling plate working mode switching:

[0101] The controller is configured as:

[0102] When the temperature data is greater than the temperature threshold, a command is sent to the semiconductor cooling chip to control the operation of the semiconductor cooling chip;

[0103] When the temperature data is less than or equal to the temperature threshold, a command is sent to the semiconductor cooling chip to control the semiconductor cooling chip to enter a low power consumption mode.

[0104] The temperature sensor continuously monitors the surface temperature of the cold plate 6. When the temperature is detected to be higher than the set threshold, the controller starts the semiconductor cooling plate. The cold end of the semiconductor cooling plate absorbs the heat of the cavity 2, and the hot end releases the heat into the cold air flow of the hollow cavity 4.

[0105] Exemplarily, when the temperature sensor detects that the temperature of cavity 2 is higher than -18°C, the semiconductor cooling plate is activated, and the cold end outputs additional cooling to the bearing surface. After the temperature drops to -22°C, the semiconductor chip switches to low power consumption mode and only maintains basic thermal balance.

[0106] To achieve dynamic air volume regulation, in some embodiments, a temperature-controlled damper, an electric actuator and damper blades are also provided. The temperature-controlled damper is provided on the outside of the air inlet 5. The temperature sensor detects the temperature in the cavity 2 in real time. The electric actuator drives the damper blades to rotate according to the temperature signal to adjust the opening of the air inlet 5, for example, in the range of 0°-90°.

[0107] When the temperature sensor detects that the temperature exceeds the set value, the controller triggers the electric actuator to increase the damper opening to allow more cold air to enter the hollow cavity 4, thereby enhancing refrigeration. When the temperature drops below the set value, the damper opening decreases to maintain an appropriate air volume.

[0108] For example, in a high temperature scenario, if the temperature is greater than -18°C, such as when fresh food is put in, causing the temperature to rise, the temperature sensor transmits a signal to the controller, and the controller triggers the electric actuator to drive the damper blades to rotate to a larger opening, for example, 60°, to increase the air intake and enhance refrigeration.

[0109] Under temperature balance, when the temperature of cavity 2 drops below -18℃, the controller instructs the damper blades to return to the basic opening to maintain a stable cooling supply. During this process, the damper opening is matched with the cooling demand in real time to avoid energy waste of fixed dampers at low loads or insufficient cooling at high loads.

[0110] If too many items are placed in the drawer assembly, the air inlet 5 located at a high position may also be blocked. In order to reduce the probability of air duct blockage, in some embodiments, a step protection assembly is provided outside the air inlet 5, and the step protection assembly includes a first baffle and a second baffle.

[0111] The width of the first baffle is greater than the width of the air inlet 5 in the horizontal direction, that is, it extends horizontally beyond the width of the air outlet 7. The second baffle forms a preset angle with the first baffle, and the preset angle can be 50°-70°.

[0112] An air guide gap is formed at the connection between the first baffle and the second baffle. The ventilation area of ​​the air guide gap is smaller than the ventilation area of ​​the air inlet 5. The ventilation area may be 20-30% of the air inlet 5 and is used to filter large particles of foreign matter.

[0113] External cold air enters the air inlet 5 through the air guide gap formed by the first baffle and the second baffle. The first baffle physically isolates the stacked items, and the second baffle guides them to slide down. Even if too many items are placed, the minimum air intake can be maintained through the air guide gap.

[0114] Exemplarily, the first baffle extends to cover an area of ​​15 mm on both sides of the air inlet 5 to prevent objects from directly contacting the air inlet 5. The inclined surface of the second baffle guides objects that accidentally slide in to disperse to both sides, and the air guide gap maintains an air intake of 10%-15%.

[0115] The vibration of the guide vane destroys the laminar state of the airflow, increases the turbulence intensity, and improves the heat exchange efficiency. The semiconductor cooling plate provides additional cooling compensation at high temperatures to achieve dynamic temperature control. The step protection component reduces the area of ​​the air guide gap, accelerates the airflow speed while preventing foreign matter from entering, thereby enhancing the cooling effect.

[0116] Based on the above-mentioned drawer assembly, some embodiments of the present application also provide a refrigeration device, including a freezer chamber, an air supply duct and a drawer assembly, wherein the drawer assembly is arranged in the freezer chamber; the air supply duct connects the branch pipeline of the main air duct of the freezer chamber and the quick cooling flow channel of the drawer assembly, and an air duct supply port is provided on the air supply duct, and the cross-sectional shape of the air duct supply port matches the air inlet 5 of the drawer assembly, and the air supply duct is connected to the quick cooling flow channel of the drawer assembly through the air duct supply port to achieve docking.

[0117] The cold air generated by the main air duct of the freezer compartment passes through the air supply port of the air supply duct and enters the quick cooling channel of the drawer assembly. The cold air flows into the hollow cavity 4 through the air inlet 5 of the double-layer panel 3. The first baffle of the step protection assembly blocks foreign matter, and the air guide gap maintains the minimum ventilation volume.

[0118] The guide vane in the hollow cavity 4 vibrates when driven by the eccentric motor, destroying the laminar flow state of the airflow and enhancing the heat exchange between the cold air and the cold guide plate 6. The hollow cavity 4 rotates with the drawer pulling action through the gear transmission mechanism, adjusting the incident angle of the cold air and optimizing the spray coverage range of the air outlet 7.

[0119] The semiconductor cooling fins in the cold conduction plate 6 are dynamically started and stopped according to the temperature sensor data. When the temperature of the cavity 2 is higher than the threshold, the semiconductor cold end releases cold air to the bearing surface, and the hot end dissipates heat through the hollow cavity 4. After the temperature reaches the standard, the semiconductor cooling fins enter a low-power standby mode. The connection between the air supply duct and the rapid cooling flow channel allows the cold air to be supplied to the high-load area first.

[0120] In some embodiments, a main air duct is provided on the freezer compartment, and a diversion hole is provided on the air supply duct. The air supply duct is connected to the main air duct through the diversion hole. A guide plate is provided in the diversion hole. An elastic hinge is provided on the guide plate. The guide plate is used to deflect when impacted by the airflow of the main air duct; when the air pressure in the main air duct is higher than the air pressure threshold, the airflow in the main air duct is diverted to the quick-cooling duct.

[0121] The rapid cooling channel also includes: a multimodal sensing unit, a characteristic processing unit and an adjustment unit. The multimodal sensing unit is used to collect characteristic parameters in the cavity 2; the characteristic processing unit is used to convert the characteristic parameters into an airflow level signal; when the airflow level signal is greater than or equal to the level threshold, the adjustment unit is used to increase the flow area of ​​the diversion hole according to the airflow level signal to divert the airflow to the rapid cooling channel.

[0122] The characteristic parameters include one or more combinations of temperature gradient distribution parameters, load pressure distribution parameters and airflow component concentration parameters. The temperature gradient distribution parameters detect the temperature difference in different areas through infrared sensors, the load pressure distribution parameters sense the stacking density of items through the pressure sensor array, and the airflow component concentration data detects odor or signs of ice crystal formation through gas sensors.

[0123] That is to say, the multimodal sensing unit at least includes an infrared sensor, a pressure sensor array and a gas sensor to detect characteristic parameters.

[0124] The characteristic processing unit converts the characteristic parameters into airflow level signals, such as high, medium, and low. When the airflow level signal is ≥ the level threshold, for example, in high temperature and high load scenarios, the adjustment unit drives the electric actuator to increase the area of ​​the diversion hole and increase the cold air supply of the quick cooling channel. At the same time, the linkage design of the main air duct and the quick cooling channel ensures the overall air pressure balance of the freezer compartment and reduces the problem of local overcooling in the direct blowing air duct.

[0125] Exemplarily, when the air pressure in the main air duct exceeds a threshold value, the high-speed airflow impacts the elastic hinge of the guide vane, causing it to deflect 15°-30° toward the rapid cooling channel, guiding 30%-50% of the cold air into the rapid cooling channel.

[0126] The infrared sensor monitors the vertical temperature difference in the cavity 2, the pressure sensor array detects the distribution density of the objects, and the gas sensor detects the humidity and ice crystal concentration. The characteristic processing unit performs weighted calculation on the characteristic parameters to generate a 1-5 level airflow demand signal. When the airflow demand signal is ≥ level 3, the regulating unit drives the guide plate of the diversion hole to increase the opening by 20%-40% to expand the cold air input of the rapid cooling channel.

[0127] When the airflow demand signal is ≤ level 2, the guide vane is reset to the reference opening to reduce the cold air diversion ratio. The deflection angle of the guide vane can also be coordinated with the opening angle of the diversion hole. For example, for every 5° increase in the deflection angle, the opening angle increases by 10%, forming a nonlinear adjustment curve.

[0128] By setting the passive deflection of the guide vane under air pressure impact and controlling the adjustment unit, the cold air can be diverted on demand. The multimodal sensor unit senses the load change, the feature processing unit converts the physical parameters into control signals, and the adjustment unit optimizes the cold air flow by adjusting the diversion hole area, thereby achieving energy saving and precise temperature control.

[0129] Solve the problems of delayed cold air distribution and high energy consumption of refrigeration equipment. Through the coordination of airflow adjustment and drawer components, dynamic optimization of cold air distribution can be achieved, which can improve refrigeration efficiency and energy utilization, and at the same time ensure temperature control stability under complex load scenarios.

[0130] In the embodiment of the present application, the refrigeration equipment 100 generally refers to equipment with refrigeration capacity. For example, the refrigeration equipment 100 includes but is not limited to direct cooling refrigerators, air cooling refrigerators, mixed cooling refrigerators, freezers, ice machines, water dispensers and other equipment.

[0131] The refrigeration device 100 , such as a refrigerator, is generally provided with a refrigerating chamber and a freezing chamber.

[0132] Among them, the main function of the cold storage room is to keep food fresh. It is usually located in the upper part of the refrigeration equipment 100, and the design temperature is generally higher than 0°C, usually between 2°C and 8°C. This temperature range is sufficient to slow down the growth rate of bacteria in food, thereby extending the shelf life of food while maintaining the freshness and taste of food. In the cold storage room, various perishable foods such as vegetables, fruits, dairy products, cooked meat and leftovers can be stored.

[0133] Among them, the main function of the freezer is to freeze and store food for a long time. It is usually located in the lower part of the refrigeration equipment 100, and the design temperature is far below 0°C, generally below -18°C. At this extremely low temperature, the moisture in the food will freeze quickly, thereby effectively preventing the growth of bacteria and allowing the food to be stored for a long time without deterioration. In the freezer, meat, fish, ice cream, quick-frozen food, etc. can be stored for a long time.

[0134] Figure 3 Schematic diagram of an operation scenario between a refrigeration device and a mobile terminal provided in some embodiments of the present application. Figure 3 As shown, the user can control the refrigeration device 100 by touching the mobile terminal 200. The mobile terminal 200 is used to receive the operation instructions input by the user and convert the operation instructions into control instructions that can be recognized and responded to by the refrigeration device 100. For example, the mobile terminal 200 can be a mobile phone, a tablet, a computer, etc.

[0135] The mobile terminal 200 can be used as a control device for performing human-computer interaction between a user and the refrigeration device 100. The mobile terminal 200 can also be used as a communication device for establishing a communication connection with the refrigeration device 100 and performing data interaction. In some embodiments, the mobile terminal 200 can install software applications with the refrigeration device 100, and realize connection and communication through a network communication protocol to achieve the purpose of one-to-one control operation and data communication.

[0136] In some embodiments, the mobile terminal 200 or other electronic devices may also simulate the functions of the refrigeration device 100 by running an application program for controlling the refrigeration device 100 .

[0137] In some embodiments, the mobile terminal 200 can communicate data with the refrigeration device 100 through various communication methods. The mobile terminal 200 can be allowed to communicate with the refrigeration device 100 through a local area network (LAN), a wireless local area network (WLAN) and other networks.

[0138] Figure 4 Some embodiments of the present application provide Figure 3 FIG. 1 is a block diagram of the hardware configuration of the refrigeration device 100.

[0139] In one embodiment, the refrigeration device 100 may include at least one of a communication device 210 , a sensor 220 , a refrigeration component 230 , a controller 250 , a display 240 , a memory, a power supply, and a user input interface 260 .

[0140] In some embodiments, the sensor 220 is used to collect signals from the internal and external environments of the refrigerator. For example, the sensor 220 includes a temperature sensor, which is used to collect the temperature inside the refrigeration device 100 or the temperature of the external environment; or the sensor 220 includes a humidity sensor, which can be used to collect the humidity inside the refrigeration device 100.

[0141] In some embodiments, the display 240 includes a display function component for presenting a picture, and a driving component for driving an image display. The display 240 is used to receive an image signal output from the controller 250 for display. For example, the display 240 can be used to display image content and components of a menu control interface and a user control UI interface, etc. The specific displayed content may include refrigerator parameters, environmental parameters, item information, refrigeration plan, etc.

[0142] In some embodiments, the communication device 210 is a component for communicating with external devices according to various communication protocol types. The refrigeration device 100 may be provided with multiple communication devices 210 according to different supported communication modes. For example, when the refrigeration device 100 supports wireless network communication, the refrigeration device 100 may be provided with a communication device 210 including a Wi-Fi function. When the refrigeration device 100 supports Bluetooth connection communication, the display device needs to be provided with a communication device 210 including a Bluetooth function.

[0143] The communication device 210 can enable the refrigeration device 100 to communicate with the external device through wireless or wired connection. Among them, the wired connection can connect the refrigeration device 100 with the external device through components such as data cables and interfaces. The wireless connection can connect the refrigeration device 100 with the external device through wireless signals or wireless networks. The refrigeration device 100 can establish a connection relationship with the external device directly, or indirectly establish a connection relationship through a gateway, a router, a connection device, etc.

[0144] In some embodiments, the controller 250 may include at least one of a central processing unit, a power processor, and first to nth interfaces for input / output. The controller 250 controls the operation of the refrigeration device 100 and responds to user operations through various software control programs stored in the memory. The controller 250 controls the overall operation and refrigeration work of the refrigeration device 100.

[0145] In some embodiments, the user may input a user command through a graphical user interface (GUI) displayed on the display 240 , and the user input interface 260 receives the user input command through the graphical user interface (GUI).

[0146] In some embodiments, the user input interface 260 may be used to receive instructions from a user, such as importing cooling parameters or rules desired by the user.

[0147] In some embodiments, the refrigeration assembly 230 may include at least one of a compressor, a condenser, a capillary tube, and an evaporator.

[0148] Exemplarily, the main function of the compressor is to increase the pressure and temperature of the refrigerant vapor, thereby establishing a necessary pressure difference in the refrigeration system to promote the circulation of the refrigerant in the refrigeration system.

[0149] Exemplarily, the main function of the condenser is to release heat and condense the high-temperature and high-pressure refrigerant vapor into liquid. In the above process, the refrigerant vapor dissipates a large amount of heat to the outside of the refrigeration device 100.

[0150] Exemplarily, the main function of the capillary tube is to limit the liquid flow rate of the refrigerant and control the pressure difference between the condenser and the evaporator through its flow resistance.

[0151] Exemplarily, the main function of the evaporator is to make the liquid refrigerant boil and evaporate rapidly under low temperature and low pressure conditions, thereby absorbing the heat inside the refrigeration device 100 and reducing the internal temperature of the refrigeration device 100.

[0152] It should be noted that the above example is merely a simple division of the functions of the refrigerator and does not constitute a limitation on the specific structure of the refrigerator in the embodiment of the present application.

[0153] The present application provides a drawer assembly and a refrigeration device, which is applied to a freezer compartment and includes: a drawer body 1, a double-layer panel 3, a hollow cavity 4, a cold conduction plate 6, and an air outlet 7. A cavity 2 is formed inside the drawer body 1, and the cavity 2 includes a bottom plate. The double-layer panel 3 is arranged at one end of the cavity 2. An air inlet 5 is arranged on the double-layer panel 3. The air inlet 5 is arranged at an end away from the bottom plate. The hollow cavity 4 is arranged in the double-layer panel 3 for circulating gas. The air inlet 5 is connected with the hollow cavity 4. The hollow cavity 4 is connected with an external cold source through the air inlet 5 to form a quick cooling channel. The cold conduction plate 6 is arranged in the quick cooling channel for uniformly conducting gas. The air outlet 7 is connected with the quick cooling channel for transmitting the gas conducted by the cold conduction plate 6 to the cavity 2. The quick cooling channel formed by the double-layer panel 3 and the hollow cavity 4, and through the high-position air inlet 5, combined with the cold uniform conduction function of the cold conduction plate 6, solves the problem of poor quick freezing effect.

[0154] Similar parts between the embodiments provided in this application can be referenced to each other. The specific implementation methods provided above are only a few examples under the general concept of this application and do not constitute a limitation on the protection scope of this application. For those skilled in the art, any other implementation methods expanded based on the scheme of this application without creative work belong to the protection scope of this application.

Claims

1. A drawer assembly, characterized in that: Applications in freezer compartments include: A drawer body (1), wherein a receiving cavity (2) is formed inside the drawer body (1), and the receiving cavity (2) comprises a bottom plate; A double-layer panel (3), the double-layer panel (3) being arranged at one end of the cavity (2), the double-layer panel (3) being provided with an air inlet (5), and the air inlet (5) being arranged at an end away from the bottom plate; A hollow cavity (4) is arranged in the double-layer panel (3) and is used for circulating gas. The air inlet (5) is connected to the hollow cavity (4). The hollow cavity (4) is connected to an external cooling source through the air inlet (5) to form a rapid cooling channel. A cooling plate (6), the cooling plate (6) being arranged in the rapid cooling air duct and used for uniformly conducting the gas; The air outlet (7) is in communication with the rapid cooling channel and is used to transmit the gas conducted by the cooling plate (6) to the cavity (2).

2. The drawer assembly according to claim 1, characterized in that: Also included is a support assembly; The cooling plate (6) is connected to the hollow cavity (4) via a supporting assembly; The support assembly includes a support rail and a positioning protrusion; The support guide rail is arranged at the bottom of the cavity (2), the number of the positioning protrusions is multiple, and the multiple positioning protrusions are arranged on the support guide rail; The cold conduction plate (6) is provided with a clamping groove, and the positioning protrusion is cooperatively connected with the clamping groove.

3. The drawer assembly according to claim 1, characterized in that: The cooling plate (6) is a composite structure; The composite structure comprises a first layer and a second layer, the material of the first layer is carbon fiber, and the material of the second layer is an aluminum plate; The first layer is arranged on the contact surface between the cooling plate (6) and the hollow cavity (4), and the second layer is connected to the first layer; The first layer is used to accelerate the cooling capacity, and the second layer is used to evenly distribute the received cooling capacity laterally.

4. The drawer assembly according to claim 1, characterized in that: The air outlet (7) comprises a first air outlet and a second air outlet; The first air outlet is arranged on the housing cavity (2), the second air outlet is arranged on the double-layer panel (3), and the second air outlet and the first air outlet form a stepped air outlet structure.

5. The drawer assembly according to claim 1, characterized in that: The hollow cavity (4) comprises a horizontal pivot and a gear transmission mechanism; The horizontal pivot is arranged in parallel on the double-layer panel (3), and drives the hollow cavity (4) to rotate through the gear transmission mechanism; The gear transmission mechanism includes a rack track, a driving gear and a connecting rod assembly; The rack track is arranged on the side wall of the drawer body (1), the driving gear is meshed with the rack track, and the connecting rod assembly is used for the driving gear and the horizontal pivot.

6. The drawer assembly according to claim 1, characterized in that: A guide vane and an eccentric motor are arranged in the hollow cavity (4), the guide vane is driven by the eccentric motor to generate mechanical vibration, the bottom surface of the air outlet (7) is at an inclined angle, and the vibration direction of the guide vane forms a preset angle with the normal direction of the inclined angle.

7. The drawer assembly according to claim 1, characterized in that: The cooling plate (6) is provided with a semiconductor cooling fin; The hot end of the semiconductor cooling plate is thermally coupled to the cold air flow channel of the hollow cavity (4), and the cold end of the semiconductor cooling plate is thermally connected to the bearing surface of the cavity (2); A temperature sensor is provided on the surface of the cooling plate (6), and the temperature sensor is used to detect temperature data in the cavity (2); Also includes controller: The controller is configured to: When the temperature data is greater than the temperature threshold, a command is sent to the semiconductor cooling chip to control the operation of the semiconductor cooling chip; When the temperature data is less than or equal to the temperature threshold, an instruction is sent to the semiconductor cooling chip to control the semiconductor cooling chip to enter a low power consumption mode.

8. The drawer assembly according to claim 1, characterized in that: The air inlet (5) is provided with a step protection component outside, and the step protection component comprises: a first baffle, wherein the width of the first baffle in the horizontal direction is greater than the width of the air inlet (5); a second baffle, wherein the second baffle forms a preset angle with the first baffle, and an air guide gap is formed at the connection between the first baffle and the second baffle; The ventilation area of ​​the air guide gap is smaller than the ventilation area of ​​the air inlet (5).

9. A refrigeration device, characterized in that: It comprises a freezer compartment, an air supply duct and a drawer assembly according to any one of claims 1 to 8; The drawer assembly is disposed in the freezer compartment; The air supply duct is provided with an air duct supply port, and the air supply duct is communicated with the quick cooling flow channel of the drawer assembly through the air duct supply port.

10. The refrigeration device according to claim 9, characterized in that: The freezing chamber is provided with a main air duct, the air supply duct is provided with a diversion hole, and the air supply duct is connected to the main air duct through the diversion hole; A guide plate is provided in the diverter hole, and an elastic hinge portion is provided on the guide plate, and the guide plate is used to deflect when impacted by the airflow of the main air duct; When the air pressure in the main air duct is higher than the air pressure threshold, the airflow in the main air duct is diverted to the rapid cooling flow channel; The rapid cooling runner also includes: A multi-modal sensing unit, used for collecting characteristic parameters in the cavity (2), wherein the characteristic parameters include one or more combinations of temperature gradient distribution parameters, load pressure distribution parameters, and airflow component concentration parameters; A feature processing unit, used for converting the feature parameter into an airflow level signal; The regulating unit is used to increase the flow area of ​​the diverter hole according to the airflow level signal when the airflow level signal is greater than or equal to the level threshold, so as to divert the airflow to the rapid cooling channel.

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