A diesel generating set for powering a refrigerator

Abstract

The utility model provides a diesel generating set for the power supply of refrigerator, including the casing, be provided with the baffle in the casing, the baffle makes the casing inside division into power chamber and heat dissipation chamber, be provided with the engine and generator of coaxial connection in the power chamber, be provided with the radiator for the heat dissipation of engine in the heat dissipation chamber, the radiator includes the heat dissipation fan, the casing is equipped with the first air inlet window for the heat dissipation chamber with casing outside conduction or isolation, and the casing is equipped with the air outlet, the casing is equipped with the second air inlet window for the power chamber with casing outside conduction or isolation, be equipped with the drive fan for driving air from the power chamber to the heat dissipation chamber on the baffle, still be provided with the muffler of connecting in the power chamber in the engine, the one end of casing is provided with the socket for providing electrical connection point, and the socket is connected with the generator electricity. The utility model has the advantages of can power supply for a large number of refrigerator while reducing the noise.

Description

Technical Field

[0001] This utility model relates to the technical field of generator sets, and in particular to a diesel generator set for powering a refrigerator. Background Technology

[0002] A diesel generator consists of two parts: a diesel engine and a generator. The engine generates a high-temperature and high-pressure environment by compressing air, injects diesel fuel into the cylinder and ignites it. The energy generated by combustion drives the piston to do work, which in turn drives the crankshaft to rotate. The generator uses the mechanical energy of the crankshaft to drive the rotor to rotate, and converts the mechanical energy into electrical energy through electromagnetic induction, thereby outputting alternating current. It is widely used in container terminals and other similar applications.

[0003] For example, the utility model with authorization publication number CN223177630U relates to a waterproof and dustproof diesel generator set, including a frame, a housing mounted on the frame, a power unit mounted on the frame, a base mounted on the frame, an engine mounted on the base, and a generator. The engine and generator are coaxially connected, and a radiator is mounted on one side of the engine. The housing has a first window and a second window, with the air outlet of the power unit facing the second window. An air inlet is located on the outer wall of the housing at the first window. During operation, the first and second windows are opened, generating mechanical energy through the engine and driving the generator to generate and output electrical energy. Simultaneously, the radiator drives external air to enter the housing through the first window and flow through the power unit, allowing heat exchange between the external air and the power unit. Finally, the air is discharged from the second window to the outside of the housing, forming a cooling system where air is concentrated at one end for intake and at the other for exhaust.

[0004] For centralized air intake at one end, the first window needs to be set with multiple or larger windows to make the opening area of ​​the window larger and ensure sufficient air intake. However, the engine is the main noise source in the generator set, and the large opening area makes it easier for the noise generated by the engine to spread to the external environment through these openings.

[0005] Furthermore, with the continued development of global trade, the volume of fresh food transportation has increased significantly, highlighting the hub value of container terminals in the supply chain. Moreover, because fresh food has stringent requirements for storage and transportation environments, needing to maintain specific temperature and humidity levels to ensure freshness and quality, a large number of refrigerated containers are required for transporting and storing these fresh foods.

[0006] To address the above pain points, the industry urgently needs to develop a generator set that can power a large number of freezers while reducing noise. Utility Model Content

[0007] To address the existing problems of difficulty in powering freezers and excessive noise, this invention provides a diesel generator set that powers freezers while reducing noise.

[0008] This utility model provides a diesel generator set for powering a refrigerator, which adopts the following technical solution: A diesel generator set for powering a refrigerator includes a housing with a partition dividing the interior into a power chamber and a heat dissipation chamber. The power chamber houses a coaxially connected engine and generator. The heat dissipation chamber contains a radiator for cooling the engine, including a cooling fan. The housing has a first air inlet for connecting or isolating the heat dissipation chamber from the outside, and an air outlet. The housing also has a second air inlet for connecting or isolating the power chamber from the outside. A drive fan is mounted on the partition to move air from the power chamber to the heat dissipation chamber. A muffler connected to the engine is also located in the power chamber. One end of the housing has a socket for providing an electrical connection point, which is electrically connected to the generator.

[0009] By adopting the above technical solution, when in use, the refrigerator plug is inserted into the socket, and the engine generates mechanical energy to drive the generator to generate and output electrical energy, thus powering the refrigerator.

[0010] During heat dissipation, a cooling fan drives cool external air into the radiator through the first air inlet for cooling, while hot air is exhausted from the outlet. Simultaneously, a driving fan propels air from the power chamber to the heat dissipation chamber, carrying away the heat generated and accumulated by the equipment in the power chamber, ensuring a suitable temperature. Since the heat inside the casing is primarily dissipated by the radiator, placing the radiator separately in the heat dissipation chamber reduces the air intake demand of the power chamber by primarily using the first air inlet for cooling. The second air inlet requires only a small amount of air to provide oxygen and maintain thermal balance within the power chamber, thereby reducing the negative pressure in the power chamber and preventing the second air inlet from drawing in external moisture, dust, or other foreign matter.

[0011] Furthermore, since the main noise source is the engine, compared to the existing method of concentrating air intake at one end, the required air intake area for the second air intake window is significantly reduced. This more effectively isolates the engine from the external environment of the casing, reducing the path for engine noise to propagate outside the casing. In other words, reducing the window area minimizes noise leakage. Moreover, the noise level of the cooling fan is far lower than that of the engine, further improving the overall noise control effect. Simultaneously, the muffler continuously reduces engine noise.

[0012] This ensures stable operation of the equipment at a suitable temperature while providing power to the refrigerator, and also reduces engine noise, thus improving the overall noise control effect.

[0013] Preferably, the engine is a diesel engine in the prior art.

[0014] By adopting the above technical solutions, the diesel engine possesses core advantages such as strong power, fuel economy, high reliability, resistance to harsh environments, and convenient maintenance, making it suitable for the continuous power supply and emergency scenarios required by generator sets. Furthermore, when using the engine, opening the No. 2 air intake window ensures airflow into the power chamber, providing the oxygen needed for engine combustion.

[0015] Preferably, the socket is a standard socket for container terminal refrigerated containers, and multiple sockets are provided, arranged in an array on the housing, and all of the sockets are located on the outer wall of the housing.

[0016] By adopting the above technical solution, existing commercially available standard refrigerator sockets are equipped with voltage regulation modules, which can convert the electrical energy generated by the generator into the electrical energy required by the refrigerator. Thus, simply plugging the refrigerator plug into the socket will power the refrigerator. Furthermore, multiple sockets are available to power multiple refrigerators simultaneously. These sockets are all located on the outer wall of the casing for easy connection to the refrigerator plug, facilitating external use.

[0017] Preferably, the muffler is an impedance composite muffler, and the muffler is rectangular in shape.

[0018] By adopting the above technical solution, the impedance composite silencer combines the principles of reactive silencing (specifically eliminating low-frequency noise by changing the acoustic impedance through structure) and resistive silencing (efficiently reducing mid-to-high-frequency noise by consuming sound energy using sound-absorbing materials). This achieves a wider bandwidth, higher efficiency, and more comprehensive silencing effect, making it particularly suitable for noise sources with complex spectral frequencies, such as fans. The cuboid shape of the silencer typically has a larger internal volume, providing a larger sound wave attenuation area, thereby improving noise suppression.

[0019] Preferably, the radiator is electrically connected to the generator; the drive fan is also electrically connected to the generator.

[0020] By adopting the above technical solution, the power generated by the generator is used to power the radiator and drive the fan, reducing dependence on external power sources and improving the system's independence and reliability.

[0021] Preferably, both the No. 1 air inlet window and the No. 2 air inlet bed are louvers.

[0022] By adopting the above technical solution, the advantage of using louvers for both the No. 1 air inlet window and the No. 2 air inlet bed is that louvers can flexibly adjust the airflow while effectively filtering external debris and dust.

[0023] Preferably, the second air inlet window is smaller than the first air inlet window.

[0024] By adopting the above technical solution, it is beneficial to isolate the engine from the external environment of the casing, and reduce the path of engine noise transmission to the outside of the casing.

[0025] Preferably, the first air inlet window is located near the bottom of the housing, and the air outlet is located on the top side of the housing.

[0026] By adopting the above technical solution, a bottom-intake and top-exhaust airflow pattern is formed, cleverly utilizing the physical properties of hot air, which has a lower density and naturally rises. When the bottom intake is activated, the system preferentially draws in cooler air from the environment, while the top exhaust promptly expels hot air, avoiding mutual interference between hot and cold airflows and thus ensuring the high efficiency and stability of the heat dissipation system.

[0027] Preferably, the radiator includes a coolant outlet pipe for discharging low-temperature coolant and a coolant inlet pipe for introducing high-temperature coolant, both of which pass through a partition and are connected to the diesel engine.

[0028] By adopting the above technical solution, during cooling, the low-temperature coolant in the radiator enters the engine through the coolant outlet pipe. The low-temperature coolant passes through the internal pipes of the engine and exchanges heat with the engine, gradually heating up to form a high-temperature coolant. The high-temperature coolant flows back to the radiator through the coolant inlet pipe. The radiator cools the high-temperature coolant to a low-temperature coolant through air cooling, thereby continuously dissipating heat for the engine.

[0029] Preferably, a mesh cover is provided at the air outlet.

[0030] By adopting the above technical solution, the mesh cover can prevent external debris from entering the heat dissipation chamber.

[0031] Compared with the prior art, the present invention has the following beneficial effects: 1. By plugging the freezer into the socket, the engine generates mechanical energy, which drives the generator to generate and output electrical energy to power the freezer; and multiple sockets are provided to power multiple freezers at the same time. The sockets are all located on the outer wall of the shell, which can be easily connected to the freezer plug for convenient external use. 2. Since the heat inside the shell is mainly dissipated by the radiator, by placing the radiator separately in the heat dissipation chamber, the air is mainly introduced through the No. 1 air inlet window to achieve heat dissipation, which reduces the air intake demand of the power chamber. The No. 2 air inlet window only needs a small amount of air to provide oxygen and maintain the thermal balance in the power chamber, thereby reducing the negative pressure in the power chamber and preventing the No. 2 air inlet window from drawing in external moisture, dust or other foreign objects. 3. Since the main noise source is the engine, and the noise of the cooling fan is much lower than that of the engine, compared with the existing method of concentrating air intake at one end, the air intake area required for the second air intake window is greatly reduced. This can more effectively isolate the engine from the external environment of the casing and reduce the path of noise transmission from the engine to the outside of the casing. In other words, reducing the window area reduces noise leakage and improves the overall noise control effect. 4. Impedance composite silencers combine the principles of reactive and resistive silencing, thus achieving a wider bandwidth, higher efficiency, and more comprehensive silencing effect. They are particularly suitable for noise sources with complex frequencies, such as fans. Rectangular silencers usually have a large internal volume, which can provide a larger sound wave attenuation area, thereby improving the noise suppression effect. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0034] Figure 2 This is a schematic diagram of the internal structure of the shell in an embodiment of this utility model.

[0035] Figure 3 This is a schematic diagram of the structure of the socket according to an embodiment of the present invention.

[0036] Figure 4 This is a cross-sectional view of the shell in an embodiment of this utility model.

[0037] Figure 5 This is a schematic diagram of the structure of the drive fan in an embodiment of this utility model.

[0038] Figure 6 This is a schematic diagram of the structure of the mesh cover in an embodiment of this utility model.

[0039] The component designations are as follows: 1. Housing; 2. Partition; 3. Power chamber; 4. Heat dissipation chamber; 5. Engine; 6. Generator; 7. Radiator; 71. Coolant outlet pipe; 72. Coolant inlet pipe; 8. No. 1 air inlet window; 9. Air outlet; 10. No. 2 air inlet window; 11. Drive fan; 12. Muffler; 13. Socket; 14. Mesh cover; 15. Inspection door. Detailed Implementation

[0040] The following will refer to the appendix in the embodiments of this utility model. Figures 1 to 6The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0041] A diesel generator set for powering refrigerated display cases, see reference. Figure 1 The system includes a rectangular shell 1. Two access ports are provided on the shell 1, located on opposite long sides. Each access port is covered with an access door 15, allowing maintenance personnel to enter the shell 1 from different locations for equipment maintenance and inspection. A partition 2 is installed inside the shell 1, dividing the interior into a power chamber 3 and a heat dissipation chamber 4.

[0042] Reference Figure 2 The power chamber 3 houses a coaxially connected engine 5 and generator 6. Both engine 5 and generator 6 are existing technologies, and engine 5 is a diesel engine. Diesel engine 5 has core advantages such as strong power, fuel economy, high reliability, resistance to harsh environments, and convenient maintenance, making it suitable for the continuous power supply and emergency scenarios required by generator 6. During power generation, mechanical energy is generated by engine 5 to drive generator 6 to generate and output electrical energy.

[0043] Reference Figure 1 and Figure 3 One end of the housing 1 is provided with a socket 13 for providing an electrical connection point. The socket 13 is electrically connected to the generator 6. The socket 13 is a standard socket 13 for container terminal refrigerated containers. Any commercially available standard refrigerated container socket 13 can be used. Moreover, existing commercially available standard refrigerated container sockets 13 are all equipped with a voltage regulation module, which can convert the electrical energy generated by the generator 6 into the electrical energy required by the refrigerated container. Thus, by plugging the refrigerated container plug into the socket 13, the refrigerated container can be powered. Multiple sockets 13 are provided and arranged in an array on the housing 1. All multiple sockets 13 are located on the outer wall of the housing 1 and are electrically connected to the generator 6. Through multiple sockets 13, multiple refrigerated containers can be powered simultaneously. At the same time, the sockets 13 are all located on the outer wall of the housing 1, which can be easily connected to the refrigerated container plug, that is, convenient for external use.

[0044] In use, the freezer plug is inserted into socket 13, and the engine 5 generates mechanical energy to drive the generator 6 to generate and output electrical energy, thus powering the freezer.

[0045] Since the main noise source of generator set 6 comes from engine 5, in order to reduce the noise of engine 5, refer to Figure 2 and Figure 4The power chamber 3 is also equipped with a muffler 12 connected to the engine 5. The muffler 12 is an impedance composite muffler 12, which combines the principles of reactive silencing (specifically eliminating low-frequency noise by changing the acoustic impedance through structure) and resistive silencing (efficiently reducing mid-to-high-frequency noise by consuming sound energy using sound-absorbing materials). This achieves a wider bandwidth, higher efficiency, and more comprehensive silencing effect, making it particularly suitable for noise sources with complex frequencies, such as fans. The muffler 12 is rectangular in shape. Rectangular mufflers 12 typically have a large internal volume, providing a larger sound wave attenuation area, thereby improving the noise suppression effect.

[0046] When in use, by plugging the refrigerator into the socket 13, the engine 5 generates mechanical energy, which drives the generator 6 to generate and output electrical energy. At the same time, the muffler 12 continuously reduces noise for the engine 5.

[0047] Additionally, refer to Figure 2 and Figure 4 The heat dissipation chamber 4 is equipped with a radiator 7 for cooling the engine 5. The radiator 7 is electrically connected to the generator 6, and the power generated by the generator 6 supplies power to the radiator 7. In this embodiment, the radiator 7 is a water tank radiator 7, which is commonly used to cool the engine 5. The generator 6 is a low-load electrical appliance power supply method, and the water tank radiator 7 are both existing technologies and will not be described in detail. The radiator 7 and the engine 5 achieve coolant circulation through pipes. The radiator 7 includes a coolant outlet pipe 71 for discharging low-temperature coolant and a coolant inlet pipe 72 for introducing high-temperature coolant. Both the coolant outlet pipe 71 and the coolant inlet pipe 72 pass through the partition 2 and are connected to the diesel engine 5.

[0048] During cooling, the low-temperature coolant in the radiator 7 enters the engine 5 through the coolant outlet pipe 71. The low-temperature coolant passes through the internal pipes of the engine 5 and exchanges heat with the engine 5, gradually increasing in temperature to form a high-temperature coolant. The high-temperature coolant flows back to the radiator 7 through the coolant inlet pipe 72. The radiator 7 cools the high-temperature coolant to a low-temperature coolant through air cooling, thereby continuously dissipating heat for the engine 5.

[0049] Specifically, the radiator 7 also includes a cooling fan, which drives airflow and dissipates heat from the high-temperature coolant. The air inlet of the cooling fan faces downwards, and the air outlet faces upwards. (See reference...) Figure 2 and Figure 5The housing 1 is equipped with a primary air inlet 8 for connecting or isolating the heat dissipation chamber 4 from the outside of the housing 1. The primary air inlet 8 is a square louvered window located near the bottom of the housing 1. When the primary air inlet 8 is opened, it connects the heat dissipation chamber 4 to the outside of the housing 1; when it is closed, it isolates the heat dissipation chamber 4 from the outside of the housing 1. There are two primary air inlets 8, located on the two long sidewalls of the housing 1, and they are arranged opposite each other along the width of the housing 1. An air outlet 9 is provided on the top side of the housing 1, connecting the heat dissipation chamber 4 to the outside of the housing 1. A mesh cover 14 is provided at the air outlet 9, which is bolted to the housing 1 to prevent external debris from entering the heat dissipation chamber 4.

[0050] During heat dissipation, a cooling fan drives cool external air into the system through the first air inlet 8. The cool air exchanges heat with the high-temperature coolant, cooling it down to a cooler temperature. The two first air inlets 8 ensure sufficient airflow. Finally, the hot air is exhausted through the exhaust vent 9. The first air inlets 8 are located near the bottom of the casing 1, and the exhaust vent 9 is located at the top, creating a bottom-intake, top-exhaust airflow pattern. This cleverly utilizes the physical property of hot air, which has a lower density and rises naturally. When air is drawn in from the bottom, the system preferentially draws in cooler ambient air, while the top exhaust promptly removes hot air, avoiding interference between hot and cold airflows and ensuring the efficiency and stability of the cooling system.

[0051] Furthermore, the combustion of diesel engine 5 requires the consumption of oxygen from the air; therefore, referring to... Figure 4 and Figure 5The housing 1 is equipped with a second air inlet 10 for communicating or isolating the power chamber 3 from the outside of the housing 1. The second air inlet 10 is also a square louver, smaller than the first air inlet 8. When the second air inlet 10 is opened, it connects the power chamber 3 to the outside of the housing 1; when it is closed, it isolates the power chamber 3 from the outside of the housing 1. Thus, by opening the second air inlet 10, air can be ensured to circulate in the power chamber 3, providing the oxygen required for combustion in the engine 5. Furthermore, to maintain thermal balance within the power chamber 3, a drive fan 11 is installed on the partition 2 to drive air from the power chamber 3 to the cooling chamber 4. The drive fan 11 is also electrically connected to the generator 6, which supplies power to the drive fan 11. The generator 6 supplies power to low-load electrical appliances in the same way as above, which is existing technology and will not be described in detail. The drive fan 11 is located near the top of the housing 1, with its inlet facing the power chamber 3 and its exhaust facing the heat dissipation chamber 4. Two drive fans 11 are provided, spaced apart along the width of the housing 1. This allows the drive fans 11 to propel air from the power chamber 3 to the heat dissipation chamber 4, carrying away the heat generated by the equipment in the power chamber 3 and ensuring a suitable temperature within the power chamber 3.

[0052] Reference Figure 4 and Figure 6 Because the total air intake required for the cooling process of generator set 6 is relatively large, approximately 1000-2000 liters / minute (L / min), and the heat inside casing 1 is mainly generated by engine 5, the heat is primarily dissipated through radiator 7. Since the heat inside casing 1 is mainly dissipated by radiator 7, by placing radiator 7 separately in cooling chamber 4, air is mainly drawn in through the first air intake window 8 for cooling, reducing the air intake demand of power chamber 3. The second air intake window 10 only needs a small amount of air intake to provide oxygen and maintain thermal balance within power chamber 3, thereby reducing the negative pressure in power chamber 3 and preventing the second air intake window 10 from drawing in external moisture, dust, or other foreign objects. Furthermore, since the main noise source is engine 5, compared to the existing method of concentrating air intake at one end, the required air intake area of ​​the second air intake window 10 is greatly reduced, which can more effectively isolate engine 5 from the external environment of casing 1, reducing the path of noise transmission from engine 5 to the outside of casing 1. Moreover, the noise of the cooling fan is much lower than that of engine 5, thus improving the overall noise control effect.

[0053] The implementation principle of this application is as follows: When in use, by inserting the refrigerator plug into the socket 13, the engine 5 generates mechanical energy, which drives the generator 6 to generate and output electrical energy, thereby powering the refrigerator.

[0054] During heat dissipation, a cooling fan drives external low-temperature air to enter through the first air inlet 8. The low-temperature air exchanges heat with the high-temperature coolant, cooling the coolant to a low-temperature level. The two first air inlets 8 ensure sufficient airflow. Finally, the high-temperature air is exhausted from the outlet 9. Simultaneously, a driving fan 11 drives air from the power chamber 3 to the heat dissipation chamber 4, carrying away the heat generated and accumulated by the equipment in the power chamber 3. This ensures a suitable temperature in the power chamber 3 and allows air circulation, providing the oxygen needed for combustion in the engine 5. Since the heat inside the casing 1 is primarily dissipated by the radiator 7, placing the radiator 7 separately in the heat dissipation chamber 4 allows air to enter primarily through the first air inlet 8 for heat dissipation, reducing the airflow requirement for the power chamber 3. The second air inlet 10 only needs a small amount of airflow to provide oxygen and maintain thermal balance within the power chamber 3, thereby reducing the negative pressure in the power chamber 3 and preventing the second air inlet 10 from drawing in external moisture, dust, or other foreign matter.

[0055] Furthermore, since the main noise source is engine 5, compared to the existing method of concentrating air intake at one end, the required air intake area of ​​the second air intake window 10 is greatly reduced. This more effectively isolates engine 5 from the external environment of housing 1, reduces the path of noise propagation from engine 5 to housing 1, and the noise of the cooling fan is much lower than that of engine 5, thus improving the overall noise control effect. At the same time, the muffler 12 continuously reduces noise for engine 5. The muffler 12 combines both reactive and resistive silencing principles, thereby achieving a wider bandwidth, higher efficiency, and more comprehensive silencing effect. It is particularly suitable for noise sources with complex frequencies, such as fans. Moreover, the cuboid shape of the muffler 12 usually has a large internal volume, which can provide a larger sound wave attenuation area, thereby further improving the noise suppression effect.

[0056] This ensures stable operation of the equipment at a suitable temperature while providing power to the refrigerator, and also reduces engine noise, thus improving the overall noise control effect.

[0057] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered 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 diesel generator set for powering a refrigerator, comprising a housing (1), characterized in that: A partition (2) is provided inside the housing (1), dividing the interior of the housing (1) into a power chamber (3) and a heat dissipation chamber (4); the power chamber (3) is provided with a coaxially connected engine (5) and generator (6); the heat dissipation chamber (4) is provided with a radiator (7) for dissipating heat from the engine (5), the radiator (7) including a cooling fan; the housing (1) is equipped with a first air inlet window (8) for communicating or isolating the heat dissipation chamber (4) from the outside of the housing (1), the housing... The body (1) has an air outlet (9); the housing (1) is equipped with a second air inlet window (10) for connecting or isolating the power chamber (3) from the outside of the housing (1); the partition (2) is equipped with a drive fan (11) for driving air from the power chamber (3) to the heat dissipation chamber (4); the power chamber (3) is also equipped with a muffler (12) connected to the engine (5); one end of the housing (1) is equipped with a socket (13) for providing an electrical connection point, and the socket (13) is electrically connected to the generator (6).

2. The diesel generator set for powering a refrigerator according to claim 1, characterized in that: The engine (5) is a diesel engine (5) in the prior art.

3. A diesel generator set for powering a refrigerator according to claim 1, characterized in that: The socket (13) is a standard socket (13) for container terminal refrigerated containers. Multiple sockets (13) are provided, and the multiple sockets (13) are arranged in an array on the shell (1). All the multiple sockets (13) are located on the outer wall of the shell (1).

4. A diesel generator set for powering a refrigerator according to claim 1, characterized in that: The muffler (12) is an impedance composite muffler (12), and the muffler (12) is rectangular.

5. A diesel generator set for powering a refrigerator according to claim 1, characterized in that: The radiator (7) is electrically connected to the generator (6); the drive fan (11) is also electrically connected to the generator (6).

6. A diesel generator set for powering a refrigerator according to claim 1, characterized in that: Both the No. 1 air inlet window (8) and the No. 2 air inlet bed are louvered windows.

7. A diesel generator set for powering a refrigerator according to claim 1, characterized in that: The second air inlet window (10) is smaller than the first air inlet window (8).

8. A diesel generator set for powering a refrigerator according to claim 1, 6, or 7, characterized in that: The first air inlet window (8) is located near the bottom of the housing (1), and the air outlet (9) is located on the top side of the housing (1).

9. A diesel generator set for powering a refrigerator according to claim 1, characterized in that: The radiator (7) includes a coolant outlet pipe (71) for discharging low-temperature coolant and a coolant inlet pipe (72) for introducing high-temperature coolant. Both the coolant outlet pipe (71) and the coolant inlet pipe (72) pass through the partition (2) and are connected to the diesel engine (5).

10. A diesel generator set for powering a refrigerator according to claim 1, characterized in that: A mesh cover (14) is provided at the air outlet (9).

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