A sound insulation device for an electrical generator
By adopting a layered composite structure and modular design for the sound insulation device on the generator, the problems of insufficient broadband noise absorption and heat dissipation difficulties are solved, achieving efficient sound insulation, vibration reduction, heat dissipation and convenient installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG PANHAI TECH CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-12
AI Technical Summary
Existing generator sound insulation devices lack a layered sound absorption structure, making it difficult to effectively absorb broadband noise, especially low-frequency vibration noise. Gaps are easily formed at the joints, leading to noise leakage. The enclosed structure affects heat dissipation and is bulky, making disassembly and assembly difficult.
The soundproof enclosure adopts a layered composite structure, including an outer shell, a damping layer, a sound insulation cotton layer, and a microporous plate. Combined with P-type rubber strips and sealing gaskets, the modular enclosure, lifting lugs, and brackets are designed to achieve wide-band noise reduction, balanced heat dissipation, and convenient installation.
It achieves effective absorption of broadband noise, reduces noise leakage, improves heat dissipation performance and device stability, and simplifies the installation and maintenance process.
Smart Images

Figure CN224355940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of generator technology, and in particular to a sound insulation device for generators. Background Technology
[0002] Currently, the noise generated by generators during operation mainly originates from mechanical vibration, electromagnetic noise, and airflow disturbances in the cooling system, which significantly impacts the surrounding environment and human health. Existing soundproofing devices mostly use single soundproofing materials or simple enclosure structures, which have several shortcomings, such as: traditional soundproof enclosures lack layered sound-absorbing structures, making it difficult to effectively absorb broadband noise, especially insufficient suppression of low-frequency vibration noise; gaps easily form at the joints of various components due to vibration, leading to noise leakage; enclosed soundproofing structures can hinder heat dissipation, affecting generator operating efficiency; and soundproof enclosures are bulky, lack modular design, and are difficult to assemble and disassemble.
[0003] Therefore, there is an urgent need for a generator sound insulation device that combines high-efficiency sound insulation, good sealing performance, heat dissipation performance, and convenient installation.
[0004] In summary, a sound insulation device for generators is needed to address the shortcomings of existing technologies. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides a sound insulation device for generators, which aims to solve the above problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a sound insulation device for a generator, comprising a sound insulation housing, a non-outgoing end sound insulation cover, an outgoing end sound insulation cover, a cooler sound insulation cover, and a bracket. The non-outgoing end sound insulation cover and the outgoing end sound insulation cover are respectively installed on both sides of the sound insulation housing, and the cooler sound insulation cover is installed at the bottom of the sound insulation housing. Rubber strips are provided between the sound insulation housing and the non-outgoing end sound insulation cover, the outgoing end sound insulation cover, and the cooler sound insulation cover. The sound insulation housing, the non-outgoing end sound insulation cover, the outgoing end sound insulation cover, and the cooler sound insulation cover are all detachably connected to the bracket. Through the layered composite structure of the outer shell, damping layer, sound insulation cotton layer, and microporous plate, a balance between broadband noise reduction and heat dissipation is achieved. The P-type rubber strips and sealing gaskets improve sealing and buffer vibration, reducing noise leakage. The modular cover combined with lifting lugs and a bracket facilitates quick disassembly and maintenance. The semi-sealed design of the C-shaped cross-section outer shell and the microporous plate enhances structural stability and adapts to the long-term operation requirements of the generator. It combines the advantages of high-efficiency sound insulation, shock absorption, heat dissipation and convenient installation, making it highly practical.
[0007] Furthermore, the soundproof housing, the non-outlet end soundproof cover, the outlet end soundproof cover, and the cooler soundproof cover are all composed of an outer shell, a damping layer, a sound insulation cotton layer, and a microporous plate. The damping layer is located on the inner wall of the outer shell, the sound insulation cotton layer is connected to the outer shell through the damping layer, the microporous plate is connected to the sound insulation cotton layer, and the microporous plate is also connected to the outer shell.
[0008] Furthermore, the outer shell has a C-shaped cross-section, and both the damping layer and the sound insulation layer are located inside the outer shell. The microporous plate is used for the C-shaped cross-section of the semi-sealed outer shell.
[0009] Furthermore, the rubber strip is P-type, and the P-type rubber strip is used for buffering, length adjustment, sealing and shock absorption between the soundproof housing and the non-outlet end soundproof cover, the outlet end soundproof cover and the cooler soundproof cover.
[0010] Furthermore, the connection surfaces of the bracket with the soundproof housing, the non-outlet end soundproof cover, the outlet end soundproof cover, and the cooler soundproof cover are provided with sealing gaskets. The sealing gaskets are used to buffer, seal, and reduce vibration between the bracket and the soundproof housing, the non-outlet end soundproof cover, the outlet end soundproof cover, and the cooler soundproof cover.
[0011] Furthermore, the soundproof housing, the non-outgoing end soundproof cover, the outgoing end soundproof cover, and the cooler soundproof cover are all equipped with several lifting lugs.
[0012] The beneficial effects of this utility model are:
[0013] 1. In this utility model, by setting up a layered design of an outer shell, a damping layer, a sound insulation cotton layer and a microporous plate, the damping layer converts mechanical vibration energy into heat energy, the sound insulation cotton layer absorbs mid-to-high frequency noise, and the microporous plate further attenuates high frequency noise and promotes airflow exchange, thereby achieving a balance between broadband noise reduction and heat dissipation.
[0014] 2. In this utility model, by setting the P-shaped rubber strip and sealing gasket in synergy, the connection gap between the soundproof housing and each cover is effectively filled, reducing noise leakage, while buffering vibration and impact, and extending the service life of the device.
[0015] 3. In this utility model, by setting up independent designs for the ground soundproof housing, the non-outgoing end soundproof cover, the outgoing end soundproof cover and the cooler soundproof cover, combined with the lifting lugs and brackets, quick assembly and disassembly can be achieved, which facilitates maintenance and component replacement, and has certain use value and promotion value. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.
[0018] Figure 2 This is a schematic diagram of the structure of this utility model.
[0019] Figure 3 This is a schematic diagram of a partial connection structure between the soundproof housing and the non-outgoing wire soundproof cover of this utility model.
[0020] Figure 4 This is a schematic diagram of the structure of this utility model from the left.
[0021] Figure 5 This is a bottom view of the structure of this utility model.
[0022] Figure 6 for Figure 5 Schematic diagram of the structure of section A.
[0023] Figure 7 This is a side view cross-sectional diagram of the sound insulation structure of this utility model.
[0024] Figure 8 This is a front view schematic diagram of the sound insulation structure of this utility model.
[0025] In the diagram: 1-soundproof housing, 2-non-outlet soundproof cover, 3-outlet soundproof cover, 4-cooler soundproof cover, 5-bracket, 6-rubber strip, 7-sealing gasket, 8-lifting lug; 101-outer shell, 102-damping layer, 103-soundproof cotton layer, 104-microperforated plate. Detailed Implementation
[0026] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.
[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.
[0028] like Figures 1-8 As shown, a sound insulation device for a generator includes a soundproof housing 1, a non-outgoing end soundproof cover 2, an outgoing end soundproof cover 3, a cooler soundproof cover 4, and a bracket 5. The non-outgoing end soundproof cover 2 and the outgoing end soundproof cover 3 are respectively installed on the left and right sides of the soundproof housing 1, and the cooler soundproof cover 4 is installed at the bottom of the soundproof housing 1. Rubber strips 6 are provided between the soundproof housing 1 and the non-outgoing end soundproof cover 2, the outgoing end soundproof cover 3, and the cooler soundproof cover 4. The soundproof cover 2, the non-outgoing end soundproof cover 3, and the cooler soundproof cover 4 are all detachably connected to the bracket 5. The soundproof housing 1, together with the non-outgoing end soundproof cover 2, the outgoing end soundproof cover 3, and the cooler soundproof cover 4, constitute the external soundproofing device of the generator. The soundproof housing 1 is used to house the main body of the generator, the non-outgoing end soundproof cover 2 is used to house the non-outgoing end of the generator, the outgoing end soundproof cover 3 is used to house the outgoing end of the generator, and the cooler soundproof cover 4 is used to house the cooler of the generator.
[0029] In one embodiment, the soundproof housing 1, the non-outlet end soundproof cover 2, the outlet end soundproof cover 3, and the cooler soundproof cover 4 are all composed of an outer shell 101, a damping layer 102, a sound insulation cotton layer 103, and a microporous plate 104. The damping layer 102 is disposed on the inner wall of the outer shell 101. The sound insulation cotton layer 103 is connected to the outer shell 101 through the damping layer 102. The microporous plate 104 is connected to the sound insulation cotton layer 103 and is also connected to the outer shell 101.
[0030] In one implementation, the outer shell 101 has a C-shaped cross section. The damping layer 102 and the sound insulation cotton layer 103 are both located inside the outer shell 101. The micro-perforated plate 104 is used for the C-shaped cross section of the semi-sealed outer shell 101. The semi-sealed design of the C-shaped cross section outer shell 101 and the micro-perforated plate 104 enhances the structural rigidity while ensuring sound insulation performance, and adapts to the complex working conditions of long-term generator operation.
[0031] In one implementation, the rubber strip 6 is P-type. The P-type rubber strip 6 is used for buffering, length adjustment, sealing and shock absorption between the soundproof housing 1 and the non-outlet end soundproof cover 2, the outlet end soundproof cover 3 and the cooler soundproof cover 4.
[0032] In one embodiment, the connecting surfaces of the bracket 5 and the soundproof housing 1, the non-outlet soundproof cover 2, the outlet soundproof cover 3, and the cooler soundproof cover 4 are provided with sealing gaskets 7. The sealing gaskets 7 are used to buffer, seal, and reduce vibration between the bracket 5 and the soundproof housing 1, the non-outlet soundproof cover 2, the outlet soundproof cover 3, and the cooler soundproof cover 4.
[0033] As one implementation method, several lifting lugs 8 are provided on the soundproof housing 1, the non-outgoing end soundproof cover 2, the outgoing end soundproof cover 3, and the cooler soundproof cover 4.
[0034] The working principle of this utility model is as follows: In use, a damping layer 102 is first brushed onto the inner surface of the outer shell 101 of the soundproof housing 1, the non-outlet end soundproof cover 2, the outlet end soundproof cover 3, and the cooler soundproof cover 4. There are three layers of damping layer 102. The damping layer 102 converts the mechanical energy of the overall vibration into heat energy, suppresses vibration, and reduces noise radiation. The porous structure inside the sound insulation cotton layer 103 absorbs sound energy, hinders sound transmission, and buffers vibration. The side of the sound insulation cotton layer 103 away from the damping layer 102 is sealed with a microporous plate 104. The microporous plate 104 is fixed to the outer shell 101 with bolts. The microporous plate 104 absorbs and attenuates noise, protects the sound insulation cotton layer 103, and at the same time plays a role in ventilation and heat dissipation.
[0035] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described in this specification. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-mentioned technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A sound insulation device for a generator, comprising a sound insulation housing (1), a non-outgoing end sound insulation cover (2), an outgoing end sound insulation cover (3), a cooler sound insulation cover (4), and a bracket (5), characterized in that, The non-outgoing end soundproof cover (2) and the outgoing end soundproof cover (3) are respectively installed on both sides of the soundproof housing (1). The cooler soundproof cover (4) is installed at the bottom of the soundproof housing (1). Rubber strips (6) are provided between the soundproof housing (1) and the non-outgoing end soundproof cover (2), the outgoing end soundproof cover (3), and the cooler soundproof cover (4). The soundproof housing (1), the non-outgoing end soundproof cover (2), the outgoing end soundproof cover (3), and the cooler soundproof cover (4) are all detachably connected to the bracket (5).
2. The sound insulation device for a generator according to claim 1, characterized in that, The soundproof housing (1), the non-outlet end soundproof cover (2), the outlet end soundproof cover (3), and the cooler soundproof cover (4) are all composed of an outer shell (101), a damping layer (102), a sound insulation cotton layer (103), and a microporous plate (104). The damping layer (102) is located on the inner wall of the outer shell (101). The sound insulation cotton layer (103) is connected to the outer shell (101) through the damping layer (102). The microporous plate (104) is connected to the sound insulation cotton layer (103) and is also connected to the outer shell (101).
3. The sound insulation device for a generator according to claim 2, characterized in that, The outer shell (101) has a C-shaped cross section. The damping layer (102) and the sound insulation cotton layer (103) are both located inside the outer shell (101). The microporous plate (104) is used for the C-shaped cross section of the semi-sealed outer shell (101).
4. The sound insulation device for a generator according to claim 3, characterized in that, The rubber strip (6) is P-type. The P-type rubber strip (6) is used for buffering, length adjustment, sealing and shock absorption between the soundproof housing (1) and the non-outlet end soundproof cover (2), the outlet end soundproof cover (3) and the cooler soundproof cover (4).
5. The sound insulation device for a generator according to claim 4, characterized in that, The connection surfaces of the bracket (5) with the soundproof housing (1), the non-outlet soundproof cover (2), the outlet soundproof cover (3), and the cooler soundproof cover (4) are provided with sealing gaskets (7). The sealing gaskets (7) are used to buffer, seal, and reduce vibration between the bracket (5) and the soundproof housing (1), the non-outlet soundproof cover (2), the outlet soundproof cover (3), and the cooler soundproof cover (4).
6. The sound insulation device for a generator according to claim 5, characterized in that, Several lugs (8) are provided on the soundproof housing (1), the non-outlet end soundproof cover (2), the outlet end soundproof cover (3), and the cooler soundproof cover (4).