A metal cabinet with good durability
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN RUIYANG CHUANGKE INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-08-07
AI Technical Summary
1、结构强度不足：常规柜体仅依赖钣金厚度设计，在承受较大荷载或冲击时易发生变形；
1、该一种耐用性好的钣金柜体，防腐底层为锌镍合金电镀层（8-15μm），通过牺牲阳极保护机制，有效防止基材锈蚀，过渡层为环氧树脂基复合涂层（20-50μm），缓解金属与陶瓷层的热膨胀差异，避免涂层开裂，耐磨面层为陶瓷纳米涂层（5-10μm），赋予柜体表面高硬度、耐刮擦及抗紫外线性能，延长寿命。
Smart Images
Figure CN224597791U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sheet metal cabinet technology, specifically a durable sheet metal cabinet. Background Technology
[0002] Sheet metal cabinets are widely used storage and protection devices in industrial equipment, power facilities, communication base stations, and residential furniture. Their structural strength, corrosion resistance, and noise reduction performance directly affect the product's lifespan and user experience. Traditional sheet metal cabinets are mostly made by bending single-layer steel plates and connecting them by welding or bolting to form a frame structure.
[0003] However, the sheet metal cabinets in the existing technology have the following significant drawbacks: 1. Insufficient structural strength: Conventional cabinets rely solely on sheet metal thickness design, making them prone to deformation when subjected to large loads or impacts; 2. Poor corrosion resistance: Most existing cabinets are treated with ordinary galvanizing or powder coating. In humid, salt spray or chemically corrosive environments, the coating is easy to peel off or the substrate is corroded, which affects the sealing and aesthetics of the cabinet and may even cause damage to the internal equipment. 3. Poor noise reduction effect: The noise from internal equipment operation (such as server fans and transformer vibration) is a prominent noise pollution problem.
[0004] Therefore, we propose a durable sheet metal cabinet. Utility Model Content
[0005] (a) Technical problems to be solved In view of the shortcomings of the prior art, this utility model provides a durable sheet metal cabinet with a long service life, strong load-bearing capacity, and noise reduction function, which can effectively solve the problems in the background art.
[0006] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: a durable sheet metal cabinet, including a cabinet body, a cabinet door at the front end of the cabinet body, an installation chamber inside the shell of the cabinet body, a biomimetic honeycomb reinforcing mesh frame fixed in the installation chamber, the biomimetic honeycomb reinforcing mesh frame being composed of multiple hexagonal honeycomb units, sound-absorbing foam filling the gaps in the hexagonal honeycomb units, and layered protective coatings on the inner and outer walls of the cabinet body, the layered protective coatings including an anti-corrosion base layer, a transition layer, and a wear-resistant surface layer.
[0007] Preferably, the anti-corrosion underlayer is a zinc-nickel alloy electroplated layer with a thickness of 8-15μm.
[0008] Preferably, the wear-resistant surface layer is a ceramic nano-coating with a thickness of 5-10 μm.
[0009] Preferably, the transition layer is fixed between the outer wall of the anti-corrosion base layer and the inner wall of the wear-resistant surface layer, and the wear-resistant surface layer is an epoxy resin-based composite coating with a thickness of 20-50 μm.
[0010] Preferably, the sound-absorbing foam is melamine foam or polyurethane foam, and its surface is provided with micro-perforations with a pore size of 0.1-0.3 mm and a porosity of 30%-50%.
[0011] Preferably, the biomimetic honeycomb reinforcing mesh frame is made of 304 stainless steel, the wall thickness of the honeycomb unit is 0.5-1.2mm, and the unit joints are fixed by laser welding.
[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a durable sheet metal cabinet with the following advantages: 1. This durable sheet metal cabinet has a corrosion-resistant bottom layer of zinc-nickel alloy electroplating (8-15μm), which effectively prevents the substrate from rusting through a sacrificial anode protection mechanism. The transition layer is an epoxy resin-based composite coating (20-50μm), which alleviates the thermal expansion difference between the metal and ceramic layers and prevents the coating from cracking. The wear-resistant surface layer is a ceramic nano-coating (5-10μm), which gives the cabinet surface high hardness, scratch resistance and UV resistance, and extends its lifespan.
[0013] 2. This durable sheet metal cabinet, by setting a biomimetic honeycomb reinforcing rib frame inside the cabinet, utilizes the high strength and lightweight characteristics of hexagonal honeycomb units to significantly improve the cabinet's resistance to pressure and impact.
[0014] 3. This durable sheet metal cabinet, with its sound-absorbing foam, can reduce noise. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a durable sheet metal cabinet according to this utility model.
[0016] Figure 2 This is a partial structural diagram of a durable sheet metal cabinet according to the present invention.
[0017] Figure 3 This is a schematic diagram of the structure of a hexagonal honeycomb unit in a durable sheet metal cabinet according to this utility model.
[0018] Figure 4 This is a layered diagram illustrating the composition of a layered protective coating in a durable sheet metal cabinet according to this utility model.
[0019] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Bionic honeycomb reinforcing mesh frame; 4. Sound-absorbing foam; 5. Hexagonal honeycomb unit; 6. Anti-corrosion bottom layer; 7. Transition layer; 8. Wear-resistant surface layer. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] This embodiment is a durable sheet metal cabinet.
[0022] like Figure 1-4 As shown, the cabinet includes a cabinet body 1, a cabinet door 2 at the front end of the cabinet body 1, an installation chamber inside the shell of the cabinet body 1, a biomimetic honeycomb reinforcing mesh frame 3 fixed inside the installation chamber, the biomimetic honeycomb reinforcing mesh frame 3 is composed of multiple hexagonal honeycomb units 5, the gaps of the hexagonal honeycomb units 5 are filled with sound-absorbing foam 4, and the inner and outer walls of the cabinet body 1 are respectively provided with layered protective coatings, the layered protective coatings include an anti-corrosion base layer 6, a transition layer 7 and a wear-resistant surface layer 8.
[0023] The anti-corrosion base layer 6 is a zinc-nickel alloy electroplated layer with a thickness of 8-15μm; the wear-resistant surface layer 8 is a ceramic nano-coating with a thickness of 5-10μm; the transition layer 7 is fixed between the outer wall of the anti-corrosion base layer 6 and the inner wall of the wear-resistant surface layer 8, and the wear-resistant surface layer 8 is an epoxy resin-based composite coating with a thickness of 20-50μm; the sound-absorbing foam 4 is melamine foam or polyurethane foam, and its surface is provided with micro-perforations with a pore size of 0.1-0.3mm and a porosity of 30%-50%; the biomimetic honeycomb reinforcing rib frame 3 is made of 304 stainless steel, the wall thickness of the honeycomb unit 5 is 0.5-1.2mm, and the unit joints are fixed by laser welding.
[0024] It should be noted that this utility model is a durable sheet metal cabinet. The biomimetic honeycomb reinforcing mesh frame 3 facilitates the reinforcement of the cabinet 1, improving its strength. Sound-absorbing foam 4 is installed inside the biomimetic honeycomb reinforcing mesh frame 3 to reduce noise. The anti-corrosion bottom layer 6 protects the substrate from corrosion. The transition layer 7, located between the metal bottom layer and the ceramic surface layer, alleviates the interfacial stress caused by the difference in thermal expansion coefficients. The wear-resistant surface layer 8 improves the wear resistance of the cabinet. Additionally, ventilation holes can be added to the cabinet as needed, but the cut edges must be wrapped.
[0025] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A durable sheet metal cabinet, comprising a cabinet body (1), wherein a cabinet door (2) is provided at the front end of the cabinet body (1), characterized in that: The cabinet (1) has an installation chamber inside the shell, and a bionic honeycomb reinforcing mesh frame (3) is fixed inside the installation chamber. The bionic honeycomb reinforcing mesh frame (3) is composed of multiple hexagonal honeycomb units (5). The gaps in the hexagonal honeycomb units (5) are filled with sound-absorbing foam (4). The inner and outer walls of the cabinet (1) are respectively provided with layered protective coatings. The layered protective coatings include an anti-corrosion base layer (6), a transition layer (7), and a wear-resistant surface layer (8).
2. The durable sheet metal cabinet according to claim 1, characterized in that: The anti-corrosion base layer (6) is a zinc-nickel alloy electroplated layer with a thickness of 8-15μm.
3. The durable sheet metal cabinet according to claim 2, characterized in that: The wear-resistant surface layer (8) is a ceramic nano-coating with a thickness of 5-10 μm.
4. The durable sheet metal cabinet according to claim 3, characterized in that: The transition layer (7) is fixed between the outer wall of the anti-corrosion base layer (6) and the inner wall of the wear-resistant surface layer (8). The wear-resistant surface layer (8) is an epoxy resin-based composite coating with a thickness of 20-50 μm.
5. A durable sheet metal cabinet according to claim 4, characterized in that: The sound-absorbing foam (4) is melamine foam or polyurethane foam, and its surface is provided with micro-perforations with a pore size of 0.1-0.3 mm and a porosity of 30%-50%.
6. A durable sheet metal cabinet according to claim 5, characterized in that: The biomimetic honeycomb reinforcing mesh frame (3) is made of 304 stainless steel, the wall thickness of the honeycomb unit (5) is 0.5-1.2mm, and the unit joints are fixed by laser welding.