A glass wool construction noise reduction assembly for a containerized energy storage cabinet
By using double-layer glass wool and a specially designed resonant sound-absorbing structure and sound wave scattering structure in the energy storage cabinet, the problem of low-frequency noise suppression in containerized energy storage cabinets has been solved, achieving more effective noise control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DIARD ECO ENERGY SAVING TECH SHANGHAI
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-24
AI Technical Summary
The low- and mid-frequency noise generated by containerized energy storage units during operation is difficult to suppress effectively, especially when space is limited, and traditional noise reduction methods are not very effective.
The noise reduction component is composed of two layers of glass wool of different thicknesses, combined with a targeted resonant sound absorption structure and a sound wave scattering structure, including perforated strips, cavities, glass wool, grids, and staggered through holes.
It significantly reduces the broadband noise of the energy storage cabinet and improves the quietness of the equipment during operation.
Smart Images
Figure CN224555034U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of containerized energy storage cabinets, specifically relating to a glass wool structure noise reduction component for containerized energy storage cabinets. Background Technology
[0002] To reduce environmental pollution, the power system is facing a transformation towards a "new power system dominated by new energy sources." Energy storage technology is one of the important means to address the issue of new energy consumption by integrating new energy sources, enabling a higher proportion and larger scale of new energy grid integration. Energy storage systems can flexibly perform charging and discharging operations according to system needs, and can perform peak shaving and valley filling. Simultaneously, energy storage systems can serve as a high-quality frequency regulation resource, mitigating the impact of large-scale new energy grid integration on system frequency stability.
[0003] Currently, commercial and industrial energy storage cabinets have two heat dissipation methods: air cooling and liquid cooling. To improve the user experience of commercial and industrial energy storage, the market is mostly trending towards liquid-cooled energy storage cabinets to reduce overall noise. However, users are increasingly demanding a better overall user experience and higher noise levels. How to balance heat dissipation and noise reduction has become a pain point for users of commercial and industrial energy storage cabinets.
[0004] The noise characteristics of containerized energy storage cabinets mainly originate from the mechanical vibration and electromagnetic noise of equipment such as transformers and fans, covering the low and mid-frequency range. Due to their limited size, the length of the heat dissipation duct is only about 1 meter, making it impossible to absorb noise using traditional sound-absorbing ducts.
[0005] To address this, we propose a noise reduction component for containerized energy storage cabinets using glass wool construction. This device effectively suppresses broadband noise in energy storage cabinets by combining double-layer glass wool of different thicknesses, a specially designed resonant sound-absorbing structure (perforated strips plus cavities plus glass wool), and a sound wave scattering structure (grid plus staggered through holes), significantly reducing the noise generated during equipment operation. Utility Model Content
[0006] The purpose of this invention is to provide a noise reduction component for a containerized energy storage cabinet using glass wool construction. This device effectively suppresses broadband noise in the energy storage cabinet by combining double-layer glass wool of different thicknesses, a specially designed resonant sound-absorbing structure (perforated pressure strip plus cavity plus glass wool), and a sound wave scattering structure (grid plus staggered through holes), significantly reducing the noise generated during equipment operation.
[0007] The specific technical solution adopted by this utility model is as follows:
[0008] A noise reduction component for a containerized energy storage cabinet using glass wool construction includes a rectangular metal outer frame pipe, with folded edges on both sides of the rectangular metal outer frame pipe, and multiple grid units installed inside the rectangular metal outer frame pipe.
[0009] The grid unit includes a metal frame connected to the rectangular metal outer frame pipe. The metal frame has a filling layer inside, and metal pressure strips are installed on both sides of the metal frame at intervals. The metal pressure strips have multiple through holes.
[0010] Furthermore, an inner lining layer is installed on the inner wall of the rectangular metal outer frame pipe by stud welding.
[0011] Furthermore, a first threaded hole is provided on the folded edge, and a second threaded hole is provided on the metal frame. Fixing bolts are provided inside the first threaded hole and the second threaded hole.
[0012] Furthermore, through slots are provided on both sides of the metal frame, and metal pressure strips are installed inside the through slots by bolts, with a distance of 20cm between the two metal pressure strips.
[0013] Furthermore, the opening area of the through hole accounts for 50% of the total area of the metal pressure strip, and the diameter of the through hole is 10mm.
[0014] Furthermore, the distance between every two metal frames is 50cm.
[0015] Furthermore, the through holes of the multiple metal frames are arranged in a staggered manner.
[0016] The technical effects achieved by this utility model are as follows:
[0017] This device effectively suppresses broadband noise in the energy storage cabinet by combining double-layer glass wool of different thicknesses, a specially designed resonant sound-absorbing structure (perforated strip + cavity + glass wool), and a sound wave scattering structure (grid + staggered through holes), significantly reducing the noise generated during equipment operation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is an exploded view of the present invention;
[0020] Figure 3 This is a schematic diagram of the structure of multiple metal frames of this utility model;
[0021] Figure 4 This is a schematic diagram of the structure of the filling layer of this utility model.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1. Rectangular metal outer frame pipe; 2. Folded edge; 3. Grille unit; 4. Metal square frame; 5. Filling layer; 6. Metal pressure strip; 7. Through hole; 8. Inner lining layer; 9. First threaded hole; 10. Second threaded hole; 11. Fixing bolt. Detailed Implementation
[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0025] like Figures 1-4 As shown, a noise reduction component for a containerized energy storage cabinet using glass wool construction includes a rectangular metal outer frame pipe 1, with folded edges 2 on both sides of the rectangular metal outer frame pipe 1, and multiple grid units 3 installed inside the rectangular metal outer frame pipe 1.
[0026] The grid unit 3 includes a metal frame 4 connected to a rectangular metal outer frame pipe 1. The metal frame 4 has a filling layer 5 inside. Metal pressure strips 6 are installed on both sides of the metal frame 4 at intervals. Multiple through holes 7 are opened on the metal pressure strips 6.
[0027] The rectangular metal outer frame pipe 1 is 1m high, 3m long, and 1m wide. An inner lining layer 8 is installed on the inner wall of the rectangular metal outer frame pipe 1 by stud welding. The inner lining layer 8 is composed of 80K density, 5cm thick centrifugal glass wool board with black fiberglass cloth facing. The cotton board is fixed to the rectangular metal outer frame pipe 1 by stud welding.
[0028] Meanwhile, the height of the folded edge 2 is 5CM, and a first threaded hole 9 is opened on the folded edge 2. A second threaded hole 10 is opened on the metal frame 4. Fixing bolts 11 are installed inside the first threaded hole 9 and the second threaded hole 10. The metal frame 4 is fixed to the rectangular metal outer frame pipe 1 by fixing bolts 11.
[0029] The metal frame 4 is 1m long and wide and 100mm thick. The metal frame 4 has through slots on both sides. Metal pressure strips 6 are installed in the through slots by bolts. The distance between the two metal pressure strips 6 is 20cm and the width of the metal pressure strips 6 is 5cm.
[0030] The opening area of the through hole 7 accounts for 50% of the total area of the metal pressure strip 6, and the diameter of the through hole 7 is 10mm.
[0031] The thickness of the filling layer 5 is 100mm, and the filling layer 5 is composed of 80K density centrifugal glass wool board covered with black fiberglass cloth.
[0032] The distance between every two metal squares 4 is 50cm.
[0033] Multiple metal frames with 4 through holes and 7 positions are arranged in a staggered manner.
[0034] It should be noted that centrifugal glass wool is a porous, sound-absorbing, and non-combustible material. Its sound absorption performance depends on the interconnected micropores within it. When sound waves enter these pores, the vibration of air molecules is converted into heat energy due to friction and viscous resistance, thereby reducing noise.
[0035] The working principle of this utility model is as follows: The noise (broadband) generated by the energy storage cabinet enters the interior of the rectangular metal outer frame pipe 1. Part of the sound energy is directly reflected by the metal parts of the metal outer frame and the inner lining layer 8, part is absorbed by the glass wool of the inner lining layer 8 (mainly mid-to-high frequency), and another part passes through the inner lining layer 8 or enters the grid area from the grid gap. Inside the grid area, the sound waves are scattered by the metal square frame 4 and the metal pressure strip 6, and the path becomes longer. When the sound waves encounter the perforated pressure strip, the broadband component penetrates the through hole 7 and is efficiently absorbed by the 100mm thick glass wool filling layer 5 behind (especially low and mid frequency). The specific mid frequency component excites the perforated plate resonance structure and is efficiently converted into heat energy consumption at this frequency point. The staggered arrangement of the through holes 7 further disrupts the direction of sound wave propagation and increases the contact with the sound-absorbing material. After multiple layers of sound absorption (broadband + resonance), scattering and blocking, the sound energy level radiated outward by the final penetrating component is greatly reduced.
[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A noise reduction component for a containerized energy storage cabinet using glass wool construction, comprising a rectangular metal outer frame pipe (1), characterized in that: The rectangular metal outer frame pipe (1) has folded edges (2) on both sides, and multiple grid units (3) are installed inside the rectangular metal outer frame pipe (1); The grid unit (3) includes a metal frame (4) connected to the rectangular metal outer frame pipe (1). The metal frame (4) has a filling layer (5) inside. Metal pressure strips (6) are installed on both sides of the metal frame (4) at intervals. Multiple through holes (7) are opened on the metal pressure strips (6).
2. The noise reduction component for a containerized energy storage cabinet using glass wool construction according to claim 1, characterized in that: An inner lining (8) is installed on the inner wall of the rectangular metal outer frame pipe (1) by stud welding.
3. The noise reduction component for a containerized energy storage cabinet using glass wool construction according to claim 1, characterized in that: The folded edge (2) has a first threaded hole (9), and the metal frame (4) has a second threaded hole (10). Fixing bolts (11) are provided inside the first threaded hole (9) and the second threaded hole (10).
4. The noise reduction component for a containerized energy storage cabinet using glass wool construction according to claim 1, characterized in that: The metal frame (4) has through slots on both sides, and metal pressure strips (6) are installed inside the through slots by bolts. The distance between the two metal pressure strips (6) is 20cm.
5. The noise reduction component for a containerized energy storage cabinet using glass wool construction according to claim 1, characterized in that: The opening area of the through hole (7) accounts for 50% of the total area of the metal pressure strip (6), and the diameter of the through hole (7) is 10mm.
6. The noise reduction component for a containerized energy storage cabinet using glass wool construction according to claim 1, characterized in that: The distance between any two of the metal frames (4) is 50 cm.
7. The noise reduction component for a containerized energy storage cabinet using glass wool construction according to claim 1, characterized in that: The through holes (7) of the multiple metal frames (4) are arranged in a staggered manner.