Air duct plate, air duct assembly, box container assembly and refrigeration equipment
By integrating the design of the air duct panel and side panel structure, the high cost and complex assembly of existing air duct structures are solved, achieving low-cost, high-efficiency air-cooling circulation and temperature uniformity, which is suitable for refrigerators and vertical refrigerated display cases.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-10
AI Technical Summary
The existing refrigerators and upright refrigerated display cases use a modular assembly structure for their air ducts, which increases the number of molds, increases mold opening costs, increases the number of parts, makes assembly cumbersome, and reduces assembly precision, thus affecting production efficiency and cold air circulation.
The air duct plate and air duct side plate are integrated into one structure to form an integrated design, simplifying the mold and assembly process. The airflow guidance is optimized through the air inlet shroud, guide section and guide rib to build a stable and smooth air-cooling circulation path.
It significantly reduces mold manufacturing costs, simplifies production processes, improves assembly efficiency, enhances sealing and structural strength, improves temperature distribution uniformity and cooling efficiency, and meets the stability requirements of multi-item display scenarios.
Smart Images

Figure CN223985446U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to an air duct plate, an air duct assembly, a box liner assembly, and a refrigeration device. Background Technology
[0002] In the current manufacturing of refrigerators and upright refrigerated display cases, the air-cooled duct, as an important channel for cold air circulation, is usually installed in the back panel area of the cabinet and plays a role in guiding the flow of cold air and regulating the temperature distribution inside the cabinet. In the existing technology, the duct structure generally adopts a split assembly structure, that is, two or more components are combined and fastened together to form a complete duct shape.
[0003] While this modular air duct design allows for structural standardization, it also introduces numerous manufacturing and assembly challenges. First, each component requires individual mold production, increasing both the number of molds and overall mold-making costs. Second, the large number of parts and complex assembly processes, involving multiple steps of positioning, fastening, and fixing on the production line, increases manual assembly time and the probability of errors, significantly hindering production efficiency in mass production. Utility Model Content
[0004] The purpose of this invention is to at least solve the problem of how to provide a more simplified air duct structure, thereby reducing mold opening costs, simplifying the assembly process, and improving production efficiency. This objective is achieved through the following technical solution:
[0005] The first aspect of this utility model provides an air duct plate, comprising:
[0006] The plate body has an air inlet and an air outlet;
[0007] The air duct side plate is an integral structure with the plate body, and the air duct side plate and the plate body together form part of the side wall of the ventilation channel. The air inlet and the air outlet are respectively connected to the ventilation channel.
[0008] According to this utility model, the air duct plate, by designing the plate body and the air duct side plate as an integrated structure, effectively overcomes the problems of high mold opening costs, large number of parts, cumbersome installation, and poor assembly accuracy caused by the assembly of multiple parts in the existing air duct structure. Specifically, since the air duct plate is an integrated structure, there is no need for splicing and connecting multiple components, which can significantly reduce mold manufacturing costs, simplify the production process and assembly procedures, improve assembly efficiency and reduce human error in mass production. At the same time, reducing structural gaps can also effectively improve the overall sealing and structural strength of the air duct, avoiding the impact of air leakage at the joints on the cooling air circulation effect. In addition, the side wall of the ventilation channel formed by the plate body and the air duct side plate can directly build an air passage inside the equipment. With the setting of air inlet and outlet, it can achieve efficient airflow guidance, providing a stable and smooth air-cooled circulation path for the refrigeration system, which is conducive to improving the uniformity of temperature distribution and cooling efficiency inside the cabinet.
[0009] In addition, the air duct plate according to this utility model may also have the following additional technical features:
[0010] In some embodiments of this utility model, the plate has a first side and a second side arranged in opposite directions, the air duct side plate is provided on the first side, and the second side is provided with an air inlet hood. The circumferential sidewall of the air inlet hood is provided with at least two first inlets, the air inlet hood covers the air inlet, and the first inlets are connected to the air inlet.
[0011] In some embodiments of this utility model, the end face of the air inlet shroud facing away from the second side is provided with a second inlet, and the second inlet is connected to the air inlet.
[0012] In some embodiments of this utility model, the air duct side plate includes a guide portion, which is arc-shaped and arranged around the outside of the air inlet.
[0013] In some embodiments of this utility model, the plate body is provided with guide ribs inside the air outlet, and the guide ribs are inclined to the plate body.
[0014] In some embodiments of this utility model, the air outlet includes a first air outlet and a second air outlet disposed on the plate. The first air outlet and the second air outlet are spaced apart along a first direction, which is perpendicular to the thickness direction of the plate. The guide ribs of the first air outlet and the guide ribs of the second air outlet have opposite inclination directions.
[0015] In some embodiments of this utility model, the plate body has a deodorizing port, which extends through the plate body along the thickness direction and is used to connect to the deodorizing module.
[0016] A second aspect of this utility model provides an air duct assembly, comprising:
[0017] The aforementioned air duct plate;
[0018] The fan unit is located inside the side plate of the air duct and is positioned opposite to the air inlet.
[0019] A third aspect of this utility model provides a box liner assembly, comprising:
[0020] The aforementioned air duct components;
[0021] The air duct plate is located on one side of the air duct body. At least one wall panel of the air duct body, together with the plate body of the air duct plate and the side panel of the air duct, form a ventilation channel.
[0022] The fourth aspect of this utility model provides a refrigeration device, including a housing and the aforementioned liner assembly, wherein the liner assembly is disposed within the housing. Attached Figure Description
[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0024] Figure 1 A schematic diagram of the structure of the air duct plate according to an embodiment of the present invention is shown.
[0025] Figure 2 A schematic front view of the air duct plate according to an embodiment of the present invention is shown;
[0026] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;
[0027] Figure 4 A rear view of the air duct plate according to an embodiment of the present invention is shown schematically;
[0028] Figure 5 A right view of the air duct plate according to an embodiment of the present invention is shown schematically;
[0029] Figure 6 for Figure 5 A magnified view of a section at point B in the middle;
[0030] Figure 7 A schematic diagram of the structure of the box liner assembly according to an embodiment of the present invention is shown.
[0031] Figure 8 for Figure 7 A sectional view of the C-plane;
[0032] Figure 9 A schematic diagram of the structure of a refrigeration device according to an embodiment of the present invention is shown.
[0033] The attached figures are labeled as follows:
[0034] 100. Air duct panel;
[0035] 10. Panel; 11. Air inlet; 12. Air outlet; 121. First air outlet; 122. Second air outlet; 13. Odor removal inlet; 14. Ventilation hole; 20. Duct side plate; 21. Guide section; 22. Receiving section; 30. Air inlet cover; 31. First inlet; 32. Second inlet; 40. Guide rib;
[0036] 200. Container liner assembly; 201. Container liner body; 202. Fan unit; 203. Evaporator; 204. Ventilation duct; 300. Refrigeration equipment; 301. Shell. Detailed Implementation
[0037] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
[0038] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.
[0039] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.
[0040] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.
[0041] like Figures 1 to 6 As shown, according to an embodiment of the present invention, a duct plate 100 is proposed. The duct plate 100 includes a plate body 10 and a duct side plate 20. The plate body 10 and the duct side plate 20 are an integral structure. An air inlet 11 and an air outlet 12 are provided on the plate body 10. The duct side plate 20 and the plate body 10 together form part of the side wall of the ventilation channel 204. The air inlet 11 and the air outlet 12 are respectively connected to the ventilation channel 204.
[0042] According to the present invention, the air duct plate 100, by designing the plate body 10 and the air duct side plate 20 as an integrated structure, effectively overcomes the problems of high mold opening cost, large number of parts, complicated installation, and poor assembly accuracy caused by the assembly of multiple parts in the existing air duct structure. Specifically, since the air duct plate 100 is an integrated structure, there is no need for splicing and connecting multiple components, which can significantly reduce mold manufacturing costs, simplify the production process and assembly procedures, improve assembly efficiency and reduce human error in mass production. At the same time, reducing structural gaps can also effectively improve the overall sealing and structural strength of the air duct, and avoid affecting the cooling air circulation effect due to air leakage at the joints. In addition, the plate body 10 and the air duct side plate 20 together form part of the side wall of the ventilation channel 204, which can directly build an air passage inside the equipment. With the setting of the air inlet 11 and the air outlet 12, it can realize efficient airflow guidance, provide a stable and smooth air-cooling circulation path for the refrigeration system, and help improve the uniformity of temperature distribution and cooling efficiency inside the box.
[0043] In some embodiments, the plate 10 has a first side and a second side arranged in opposite directions. The air duct side plate 20 is located on the first side, and an air inlet hood 30 protrudes from the second side. A first inlet 31 is formed on the circumferential sidewall of the air inlet hood 30, which covers the air inlet 11. The first inlet 31 communicates with the air inlet 11. Furthermore, by providing a protruding air inlet hood 30 on the second side of the plate 10 and forming multiple first inlets 31 on the circumferential sidewall of the air inlet hood 30, airflow can enter the air inlet hood 30 circumferentially and then be guided from the air inlet hood 30 into the air inlet 11 of the ventilation duct 204, achieving circumferential air intake. This embodiment effectively avoids the problem of poor air intake caused by food or goods being piled up and obstructing the front, improving the flexibility and reliability of air intake. In addition, the air inlet shroud 30 forms a covering structure with the air inlet 11, which not only plays a role in guiding airflow, but also has certain protective, dustproof, and foreign object blocking functions, improving the overall operational stability and environmental adaptability of the air duct system, and is especially suitable for high-load and multi-item display application scenarios such as supermarkets.
[0044] Specifically, a second inlet 32 is provided on the end face of the air inlet hood 30 opposite to the second side, and the second inlet 32 is connected to the air inlet 11. By providing the second inlet 32 on the end face of the air inlet hood 30 opposite to the plate 10, gas can directly enter the air inlet hood 30 from the front direction (axial direction), which, together with the first inlet 31 provided on the circumferential side wall of the air inlet hood 30, realizes a multi-directional three-dimensional air intake structure. This design significantly enhances the air duct's resistance to obstruction. Even if there are objects obstructing it in one direction (such as the circumferential or front), air can still enter from other directions, ensuring a continuous and stable supply of cooling air into the air duct and avoiding problems such as insufficient cooling capacity and uneven temperature. In addition, this embodiment can also improve the adaptability of the air duct system to changes in the operating environment, and is particularly suitable for application scenarios such as supermarkets and convenience stores where items are densely stacked and obstruction is uncontrollable. It has higher stability and energy efficiency in actual operation.
[0045] Furthermore, the portion of the duct side plate 20 surrounding the air inlet 11 is arc-shaped to form a guide section 21. By providing the arc-shaped guide section 21 around the outer area of the air inlet 11, the air entering from the air inlet 11 can be effectively guided and rectified initially. Compared with right-angle or sharp-edge structures, the arc-shaped curved surface structure has a superior streamlined design, which can significantly reduce turbulence and eddy currents when the airflow enters the ventilation channel 204, and improve the smoothness and directional stability of the airflow entering the duct. The guiding effect of the guide section 21 allows the air to flow smoothly along the dominant direction of the ventilation channel 204, avoiding the reduction in airflow efficiency caused by local backflow or impact, and helping to achieve uniformity, stability and energy efficiency optimization of the air circulation inside the entire refrigeration equipment. Especially in the context of multi-directional air intake structure (such as both circumferential and forward inlets), the guide section 21 can also serve to converge the airflow and guide it into the duct.
[0046] Furthermore, the air inlet shroud 30 is a hollow cylinder with multiple first inlets 31 arranged along one circumferential sidewall. The air inlet shroud 30 has only one end face, which is located away from the second side and has multiple second inlets 32. Because the air inlet shroud 30 has a hollow structure, the airflow from all inlets eventually converges into the same air inlet 11. At the same time, the cylindrical structure is easy to process and mold, and has a good streamline, which helps to naturally guide and initially rectify the airflow inside the air inlet shroud 30, optimizing the subsequent cooling air path.
[0047] In some embodiments, the plate 10 is provided with guide ribs 40 inside the air outlet 12, and these guide ribs 40 are inclined to the plate 10. By providing guide ribs 40 inclined to the plate 10 inside the air outlet 12, the direction of the airflow flowing out of the air duct can be adjusted, so that it is no longer discharged in a straight vertical direction, but is deflected obliquely in the direction set by the guide ribs 40. This structure significantly optimizes the coverage of the airflow, allowing the cold air to diffuse more effectively to both sides or specific areas inside the cabinet, improving the temperature uniformity of the refrigerated space, and effectively solving the problem of "cold energy dead zones" caused by the single airflow direction in traditional structures.
[0048] Specifically, the air outlet 12 includes a first air outlet 121 and a second air outlet 122 disposed on the plate 10. The first air outlet 121 and the second air outlet 122 are spaced apart along a first direction, which is perpendicular to the thickness direction of the plate 10. The guide ribs 40 of the first air outlet 121 and the guide ribs 40 of the second air outlet 122 have opposite inclination directions. The first direction can be horizontal, and multiple sets of the first air outlet 121 and the second air outlet 122 can be arranged vertically. By providing the first air outlet 121 and the second air outlet 122 on both sides of the plate 10, and providing inclined guide ribs 40 with opposite directions inside each air outlet 12, bidirectional diffusion guidance of airflow can be achieved. After passing through the air duct, the cold airflow is guided to flow in the left and right directions by the two air outlets 12, thereby expanding the coverage area of the cold air and significantly improving the uniformity of cold air distribution inside the cabinet. At the same time, it can also prevent the air outlet from blowing directly onto the glass door of the refrigeration equipment 300, avoiding condensation. This symmetrical, reverse-flow design not only reduces localized temperature differences caused by uneven heating and cooling but also improves the overall temperature control stability of the cabinet space. It is particularly suitable for scenarios requiring large-area uniform cooling, such as wide-body display cases or refrigerated cabinets, and also has advantages such as simple structure, clear guiding effect, and easy molding.
[0049] In some embodiments, the air inlet 11 is located above the plate 10, and the air outlet 12 is located below it. The upper part of the duct side plate 20 forms a guide section 21, which guides the air entering the ventilation channel 204 downwards. The lower half of the duct side plate 20 forms a receiving section 22, which can accommodate the evaporator 203. The air entering through the air inlet 11 flows through the evaporator 203 and then flows out through the air outlet 12. By placing the air inlet 11 above the plate 10 and the air outlet 12 below, and sequentially arranging the guide section 21 and the receiving section 22 inside the duct side plate 20, a vertically continuous and clearly defined cold airflow channel is constructed. This structural design allows air to pass through the duct from top to bottom, achieve efficient heat exchange through the evaporator 203, and then be discharged downwards, conforming to the natural downward flow trend of cold air, which helps to improve cooling efficiency and flow stability. Meanwhile, the lower housing 22 structure provides an integrated installation space for the evaporator 203, eliminating the need for additional brackets or external mounting structures. This simplifies system installation, improves assembly efficiency and structural integration, and is particularly suitable for the layout requirements of compact display cases or integrated refrigeration modules.
[0050] In some embodiments, the plate 10 has a odor-removing port 13, which extends through the plate 10 along its thickness. The odor-removing port 13 connects to the odor-removing module. The second side is one side of the storage box, and the first side is the side located inside the inner liner. The odor-removing module is located inside the inner liner and connects to the storage box through the odor-removing port 13. By providing the odor-removing port 13 through the plate 10 and arranging the odor-removing module on the first side of the plate 10 (i.e., inside the inner liner), the gas purification function of the storage box is achieved. This structure allows the gas inside the storage box to enter the odor-removing module through the odor-removing port 13 for deodorization. The treated air then flows back to the storage space, forming a localized circulating purification path. This not only improves the cleanliness of the storage environment and the food preservation effect but also prevents odors from spreading throughout the box, improving the user experience. In addition, since the odor removal module is located on one side of the cabinet, it is easy to install and maintain in a unified manner. The odor removal port 13 is only opened as a gas passage and does not occupy storage space, which helps to optimize space utilization and overall structural compactness.
[0051] In some embodiments, a partition plate is provided at the bottom of the air duct plate 100, which is connected to the box body 201, allowing the ventilation channel 204 to be located in a semi-enclosed space. The partition plate has multiple ventilation holes 14, which allow the ventilation channel 204 to communicate with the airflow inside the box body. By providing a partition plate at the bottom of the air duct plate 100 connected to the box body 201, the air duct and the remaining space of the box body are structurally separated, forming a semi-enclosed space with a defined range but not completely sealed. This allows the ventilation channel 204 to operate in a controlled environment, reducing external disturbances and improving airflow stability. The multiple ventilation holes 14 on the partition plate constitute an orderly exchange path for airflow between the ventilation channel 204 and the box body space. The partition plate can be enclosed with the air duct side plate 20 or set independently of the air duct side plate 20.
[0052] This embodiment also includes an air duct assembly, which includes the aforementioned air duct plate 100 and a fan unit 202. The fan unit 202 is disposed within the air duct side plate 20 and is positioned opposite the air inlet 11. Specifically, the fan unit 202 includes a motor and an impeller. The impeller rotates under the drive of the motor and includes multiple blades spaced circumferentially. The blades are arranged in a ring around the rotation axis of the motor. The impeller is positioned at the air inlet 11 inside the air duct side plate 20 to guide the circumferentially drawn-in air to the center of the impeller and, under the action of centrifugal force, push the airflow axially into the ventilation channel 204. The impeller, through its multiple circumferentially arranged blades, rotates under the drive of the motor to form a negative pressure zone, causing the circumferential airflow to be drawn into the center of the impeller. Under the combined action of centrifugal force and the guidance of the curved blade surface, the airflow direction is changed from circumferential intake to axial discharge, thereby improving the air supply efficiency.
[0053] like Figure 7 and Figure 8 As shown, this embodiment also includes a liner assembly 200, comprising the aforementioned air duct assembly and a liner body 201. An air duct plate 100 is located on one side of the liner body 201. At least one wall panel of the liner body 201, together with the plate body 10 of the air duct plate 100 and the air duct side plate 20, forms a ventilation channel 204. The ventilation channel 204 is formed by the air duct plate 100 and the wall panel of the liner body 201, avoiding the need for additional cover plates or bottom plates in traditional air ducts, reducing the number of parts and mold costs, and improving the overall structural simplicity. Optionally, at least one wall panel of the liner body 201 may also be provided with a vertical groove structure to facilitate the liner assembly 200's fit with the groove structure. The liner assembly 200 can be partially or completely embedded in the groove structure, achieving structural stability and quick installation.
[0054] Specifically, the liner assembly 200 also includes an evaporator 203, which is located within the ventilation channel 204 and near the air outlet 12. Optionally, the evaporator 203 can be pre-installed in the aforementioned vertical recessed structure.
[0055] like Figure 9 As shown, this embodiment also includes a refrigeration device 300, which includes a housing 301 and the aforementioned liner assembly 200, with the liner assembly 200 disposed inside the housing 301.
[0056] Specifically, the refrigeration equipment can be a vertical refrigerated display case.
[0057] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A wind tunnel panel, characterized by, The utility model relates to a ventilation duct plate and a ventilation duct assembly, and belongs to the technical field of air conditioning. The plate body has opposite first and second sides, the air duct side plate is arranged on the first side, and the second side is provided with an air inlet cover, the circumferential side wall of the air inlet cover is provided with a first inlet, the air inlet cover covers the air inlet, and the first inlet is communicated with the air inlet. The end surface of the air inlet cover away from the second side is provided with a second inlet, and the second inlet is communicated with the air inlet.
2. The plenum chamber of claim 1, wherein The air duct side plate comprises a guide portion, the guide portion is arc-shaped and annularly arranged outside the air inlet.
3. The plenum chamber of claim 2 wherein, The plate body is provided with a guide rib, the guide rib is located in the air outlet, and the guide rib is inclined to the plate body.
4. The plenum chamber of claim 1 wherein, The air outlet comprises a first air outlet and a second air outlet arranged on the plate body, the first air outlet and the second air outlet are arranged in a first direction, the first direction is perpendicular to the thickness direction of the plate body, and the inclined directions of the guide ribs of the first air outlet and the second air outlet are opposite.
5. The plenum chamber of claim 1 wherein, The plate body is provided with a pure taste port, the pure taste port penetrates the plate body along the thickness direction of the plate body, and the pure taste port is used for connecting a pure taste module.
6. The plenum chamber of claim 5 wherein, The utility model relates to a ventilation duct plate and a ventilation duct assembly, and belongs to the technical field of air conditioning.
7. The air duct panel according to any one of claims 1 to 6, characterized in that The utility model relates to a ventilation duct plate and a ventilation duct assembly, and belongs to the technical field of air conditioning.
8. An air duct assembly, characterized by The utility model relates to a ventilation duct plate and a ventilation duct assembly, and belongs to the technical field of air conditioning. The utility model relates to a ventilation duct plate and a ventilation duct assembly, and belongs to the technical field of air conditioning. The utility model relates to a ventilation duct plate and a ventilation duct assembly, and belongs to the technical field of air conditioning.
9. A container assembly, characterized by 10. A refrigeration appliance characterized in that,