A warehouse type silent diesel generating set
By using a multi-layer cavity structure and sound-absorbing material design, combined with the layout of the intake and exhaust fans, the problem of noise diffusion in diesel generator sets has been solved, achieving better quietness and noise reduction performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING XINJINLV ELECTROMECHANICAL EQUIP CO LTD
- Filing Date
- 2025-10-30
- Publication Date
- 2026-08-04
AI Technical Summary
Although existing diesel generator sets reduce vibration through shock absorption, the noise generated by the fan can still spread to the outside, causing noise pollution.
The design employs a multi-layer cavity structure and sound-absorbing materials, combined with the layout of the air intake and exhaust fans, to form multiple layers of barriers and sound-absorbing layers, reducing noise transmission, and using sound-absorbing felt for targeted noise absorption.
This effectively reduces noise leakage during generator operation, further optimizes the quietness effect, and reduces noise pollution.
Smart Images

Figure CN224592229U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of diesel generator sets, specifically a warehouse-type silent diesel generator set. Background Technology
[0002] A diesel generator set consists of four main modules: generator, control system, and cooling system. It is a power supply device that uses a prime mover to drive a synchronous generator to generate electricity. Diesel generator sets are usually used in skid-mounted configurations to make the installation compact and space-saving.
[0003] Chinese patent CN220979668U discloses a warehouse-type silent diesel generator set. In actual use, it can reduce the vibration generated by the diesel generator set during operation, weaken the vibration force to a certain extent, reduce the generation of noise, reduce the transmission of noise between the equipment and the outside world, and absorb the noise of the high-power exhaust end, thereby achieving an all-round silent effect.
[0004] While the above solutions reduce noise by mitigating vibration during diesel generator operation, the noise generated by the fans used for cooling still extends to the outside of the generator set, causing noise pollution. Therefore, we offer a warehouse-style silent diesel generator set to address these issues. Utility Model Content
[0005] 1) Technical problems to be solved
[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a warehouse-type silent diesel generator set.
[0007] (ii) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a warehouse-type silent diesel generator set, comprising:
[0009] The cabinet has ventilation windows embedded on both sides.
[0010] The protective shell is fixedly connected to the cabinet. Two partition plates are fixedly connected to both sides of the protective shell, and the cabinet and the protective shell are divided into a first cavity, a second cavity, a third cavity, a sound-absorbing felt, and a fifth cavity. An air intake fan and an exhaust fan are respectively installed on both sides of the protective shell, and sound-absorbing felt is bonded to the outer surface of the protective shell.
[0011] The generator body is housed within a protective enclosure, and the enclosure is equipped with support components for elastically supporting the generator body.
[0012] Furthermore, the air intake end of the air inlet fan is located in the fourth chamber, and the air exhaust end of the air outlet fan is located in the third chamber.
[0013] Furthermore, a first inspection door is hinged to the cabinet, and a second inspection door is hinged to the protective shell.
[0014] Furthermore, the support assembly includes a mounting plate, on which a connecting block is fixedly connected, and the generator body is mounted on the connecting block.
[0015] Furthermore, a rubber pad is provided between the mounting plate and the cabinet.
[0016] Furthermore, the support assembly also includes two sets of screws fixedly connected to the cabinet. The top end of each screw passes through the mounting plate and is threaded with a locking nut. A spring is fitted on the screw and is located below the mounting plate.
[0017] (iii) Beneficial effects:
[0018] Compared with existing technologies, this warehouse-type silent diesel generator set has the following advantages:
[0019] I. This utility model uses a partition plate to separate multiple cavities between the cabinet and the protective shell, forming a multi-layer barrier that can effectively block noise from inside the protective shell from being transmitted to the outside of the cabinet. At the same time, the sound-absorbing felt bonded to the outer surface of the protective shell can specifically absorb noise inside the cavities. The dual effect of cavity blocking and sound-absorbing material adsorption significantly reduces the noise leakage generated by the generator body and fan during operation, further reducing noise pollution compared to existing solutions.
[0020] II. This utility model places the air intake end of the air inlet fan in the fourth cavity and the exhaust end of the air outlet fan in the third cavity. This allows external air to enter the protective shell through the fourth cavity, while the hot air inside the protective shell is sent into the third cavity by the exhaust fan and then discharged to the outside of the cabinet. This allows the cooling airflow to pass through multiple cavities during its flow, avoiding the direct diffusion of noise carried by the airflow when it directly enters and exits the cabinet. While ensuring effective cooling of the generator body, the cavity structure is used to weaken the noise in the airflow, achieving a synergistic optimization of heat dissipation function and noise reduction effect. Attached Figure Description
[0021] Figure 1 This is a perspective view of the present utility model;
[0022] Figure 2 A cross-sectional view of this utility model Figure 1 ;
[0023] Figure 3 A cross-sectional view of this utility model Figure 2 .
[0024] In the diagram: 1. Cabinet; 2. First inspection door; 3. Ventilation window; 4. Protective shell; 5. Partition plate; 6. First cavity; 7. Second cavity; 8. Third cavity; 9. Fourth cavity; 10. Sound-absorbing felt; 11. Air intake fan; 12. Exhaust fan; 13. Second inspection door; 14. Fifth cavity; 15. Generator body; 16. Mounting plate; 17. Rubber pad; 18. Connecting block; 19. Screw; 20. Spring; 21. Locking nut. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] like Figure 1-3 As shown, this utility model provides a technical solution: a warehouse-type silent diesel generator set, including a cabinet 1, a protective shell 4, and a generator body 15.
[0027] Both sides of the cabinet 1 are inlaid with heat dissipation windows 3, which allow air to enter and exit the cabinet 1.
[0028] The protective shell 4 is fixedly connected inside the cabinet 1. Two partition plates 5 are fixedly connected to both sides of the protective shell 4. The cabinet 1 and the protective shell 4 are divided into a first cavity 6, a second cavity 7, a third cavity 8, a sound-absorbing felt 10 and a fifth cavity 14. An air inlet fan 11 and an exhaust fan 12 are respectively installed on both sides of the protective shell 4. The outer surface of the protective shell 4 is bonded with sound-absorbing felt 10.
[0029] The cabinet 1 and the protective shell 4 are separated by a partition plate 5 to form a first cavity 6, a second cavity 7, a third cavity 8, a sound-absorbing felt 10, and a fifth cavity 14. Multiple cavities are used to reduce the transmission of noise from inside the protective shell 4 to the outside of the cabinet 1. The sound-absorbing felt 10 is also used to absorb noise in the first cavity 6, the second cavity 7, the third cavity 8, the sound-absorbing felt 10, and the fifth cavity 14.
[0030] In this embodiment, the air intake end of the air intake fan 11 is located in the fourth cavity 9, the air exhaust end of the exhaust fan 12 is located in the third cavity 8, and a second maintenance door 13 is hinged on the protective shell 4.
[0031] The air intake fan 11 draws outside air into the fourth chamber 9 and sends the air in the fourth chamber 9 into the interior of the protective shell 4. The exhaust fan 12 sends the gas in the protective shell 4 into the third chamber 8 and then discharges it to the outside of the cabinet 1 through the third chamber 8.
[0032] The cabinet 1 is hinged with a first inspection door 2, and the protective shell 4 is hinged with a second inspection door 13. The first inspection door 2 allows workers to enter the first cavity 6, and the second inspection door 13 allows workers to enter the protective shell 4.
[0033] The generator body 15 is housed inside the protective shell 4. The cabinet 1 is provided with a support assembly for elastically supporting the generator body 15. The exhaust end of the generator body 15 extends through the protective shell 4 and the cabinet 1 to the outside of the cabinet 1.
[0034] The support assembly includes a mounting plate 16, on which a connecting block 18 is fixedly connected. The generator body 15 is mounted on the connecting block 18, and the generator body 15 is mounted on the mounting plate 16 using the connecting block 18.
[0035] A rubber pad 17 is provided between the mounting plate 16 and the cabinet 1 to cushion the vibration on the mounting plate 16.
[0036] Specifically, the support assembly also includes two sets of screws 19 fixedly connected to the cabinet 1. The top of the screw 19 passes through the mounting plate 16 and is threaded with a locking nut 21. A spring 20 is sleeved on the screw 19 and the spring 20 is located below the mounting plate 16.
[0037] The mounting plate 16 is fixed by screw 19 and locking nut 21, while spring 20 can provide further cushioning for the mounting plate 16.
[0038] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A silencing diesel generator set of the warehouse type, characterized in that, include: Cabinet (1), both sides of the cabinet (1) are inlaid with heat dissipation windows (3); The protective shell (4) is fixedly connected inside the cabinet (1). Two partition plates (5) are fixedly connected to both sides of the protective shell (4). The cabinet (1) and the protective shell (4) are divided into a first cavity (6), a second cavity (7), a third cavity (8), a sound-absorbing felt (10), and a fifth cavity (14). An air inlet fan (11) and an exhaust fan (12) are respectively installed on both sides of the protective shell (4). The outer surface of the protective shell (4) is bonded with sound-absorbing felt (10). The generator body (15) is housed inside the protective shell (4), and the cabinet (1) is provided with a support component for elastically supporting the generator body (15).
2. A silencing diesel generator set of the shed type according to claim 1, characterized in that: The air intake end of the air inlet fan (11) is located in the fourth cavity (9), and the air exhaust end of the air outlet fan (12) is located in the third cavity (8).
3. A silencing diesel generator set of the shed type according to claim 1, characterized in that: The cabinet (1) is hinged with a first inspection door (2), and the protective shell (4) is hinged with a second inspection door (13).
4. The silencing diesel generator set of claim 1, wherein: The support assembly includes a mounting plate (16), on which a connecting block (18) is fixedly connected, and the generator body (15) is mounted on the connecting block (18).
5. A silencing diesel generator set of the shed type according to claim 4, characterized in that: A rubber pad (17) is provided between the mounting plate (16) and the cabinet (1).
6. A silencing diesel generating set of the shed type according to claim 4, characterized in that: The support assembly also includes two sets of screws (19) fixedly connected to the cabinet (1). The top end of the screw (19) passes through the mounting plate (16) and is threaded with a locking nut (21). A spring (20) is sleeved on the screw (19) and the spring (20) is located below the mounting plate (16).