Open diesel generator

Abstract

The utility model relates to diesel generator technology field especially open type diesel generator, including outer frame and the generator set of setting on outer frame, be provided with inverter on the outer frame, inverter is connected with the generator set, be provided with the first heat abstract mechanism of transmission connection with it on the generator set, the first heat abstract mechanism is located between the generator set and inverter, be provided with for guiding cold air to inverter heat dissipation on the inverter, when using, through setting inverter on the outer frame, inverter plays the output voltage and frequency of stabilizing generator set, and by guide mechanism and first heat abstract mechanism mutual cooperation, make inverter and generator set heat dissipation stable and reliable, ensure that inverter and generator set operation stable and reliable, avoid the existing open type diesel generator when running, due to the load leading to the output voltage and frequency of generator set easy to appear fluctuation, influence the problem of the stability of power supply.

Description

Technical Field

[0001] This utility model relates to the field of diesel generator technology, and in particular to open-type diesel generators. Background Technology

[0002] Diesel generators, as an important emergency power supply device, are widely used in shopping malls, hospitals, outdoor operations, and other places with high requirements for power continuity, playing a crucial role in ensuring the continuous operation of critical loads when the main power source fails. However, traditional open-type diesel generators still face several technical challenges in actual operation, mainly in the following aspects: First, under dynamic load conditions, the output voltage and frequency of the generator set are prone to fluctuations, leading to a decline in power quality. Especially when the load is suddenly increased or decreased, due to the inertia of the dynamic response between the engine and the generator, the system often requires a certain recovery time to regain stability to the rated voltage and frequency range, thus affecting its reliability in supplying power to sensitive loads.

[0003] Secondly, prolonged operation of generator sets under light load conditions can lead to a significant reduction in fuel efficiency. When the actual load is far below the rated power of the unit, incomplete fuel combustion not only wastes energy but also easily leads to increased carbon buildup inside the engine. Long-term operation will affect the equipment's lifespan and increase maintenance costs, resulting in unsatisfactory economic and environmental performance.

[0004] In conclusion, to improve the overall operational efficiency of diesel generator sets, it is necessary to further optimize their speed regulation performance, excitation control system, and load adaptability, and to consider fuel economy and emission control at the design level, so as to meet the requirements of modern emergency power systems for efficient, stable, and clean operation. Summary of the Invention

[0005] The technical problem to be solved by this utility model is: in order to solve the problem that the output voltage and frequency of the generator set are prone to fluctuation due to load during operation of the existing open diesel generator, which affects the stability of power supply, an open diesel generator is provided.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: an open-type diesel generator, including an outer frame and a generator set mounted on the outer frame. An inverter is mounted on the outer frame and connected to the generator set. A first heat dissipation mechanism is mounted on the generator set and is connected to it in a transmission manner. The first heat dissipation mechanism is located between the generator set and the inverter. The inverter is equipped with a guide mechanism for guiding cold air to the inverter for heat dissipation, and then guiding the cooled air through a guide mechanism within the first heat dissipation mechanism. The first heat dissipation mechanism is used to first dissipate heat from the inverter and then from the combustion chamber of the generator set. Compared with the prior art, this solution, by mounting the inverter on the outer frame, stabilizes the output voltage and frequency of the generator set. The guide mechanism and the first heat dissipation mechanism work together to ensure stable and reliable heat dissipation for both the inverter and the generator set, thus ensuring stable and reliable operation of both.

[0007] To implement the guiding mechanism, in some preferred embodiments, the guiding mechanism includes an outer casing with an internal cavity. The outer casing is fixedly mounted on an outer frame, and the inverter is fixedly mounted inside the cavity of the outer casing. The outer casing has a first air outlet communicating with the cavity, located on the side of the outer casing near the first heat dissipation mechanism. The outer casing also has several first air inlets communicating with the cavity. The first heat dissipation mechanism, corresponding to the first air outlet, introduces cool air from outside the outer casing into the cavity through the first air inlets to dissipate heat from the inverter. The cooled air then enters the first heat dissipation mechanism, ensuring stable and reliable heat dissipation for the inverter.

[0008] To better dissipate heat from the inverter inside the outer casing, in some preferred embodiments, the inverter is located between the first air inlet and the first air outlet. Placing the inverter between the first air inlet and the first air outlet allows cool air to pass directly through the inverter, dissipating heat and improving its cooling performance, thus ensuring stable and reliable inverter operation.

[0009] To ensure proper heat dissipation for the generator set, in some preferred embodiments, the outer casing is provided with a second air inlet communicating with the cavity, located between the first air inlet and the first air outlet. As the air temperature rises after the inverter dissipates heat, to ensure better heat dissipation for the generator set, the second air inlet on the outer casing, communicating with the cavity, guides cool air into the outer casing, allowing the cool air to mix with the heat-exchanged air. The mixed gas is then guided by the first heat dissipation mechanism to the generator set for heat dissipation, ensuring stable and reliable heat dissipation for the generator set.

[0010] In some preferred embodiments, a guide shroud is provided on each of the first air inlets.

[0011] To prevent rainwater and other substances from entering and affecting the normal operation of the inverter, in some preferred embodiments, the opening of the shroud is set downwards.

[0012] To implement the first heat dissipation mechanism, in some preferred embodiments, the first heat dissipation mechanism includes a first air guide shroud fixedly mounted on the generator set. A flywheel fan blade, driven by the generator set, is disposed inside the first air guide shroud. An air intake hole corresponding to a first air outlet is disposed on one side of the first air guide shroud, and an air supply hole is disposed on the first air guide shroud for heat dissipation from the generator set. By having the generator set drive the flywheel fan blade to rotate, the mixed gas within the guiding mechanism is introduced into the first air guide shroud, and then transported by the first air guide shroud to the generator set for heat dissipation.

[0013] To ensure the normal operation of the generator set, in some preferred embodiments, the generator set is provided with a second heat dissipation mechanism for dissipating heat from its body, and the generator set is located between the first heat dissipation mechanism and the second heat dissipation mechanism.

[0014] To implement the second heat dissipation mechanism, in some preferred embodiments, the second heat dissipation mechanism includes a second air guide shroud, inside which are heat dissipation blades that are connected to the generator set. The second air guide shroud is provided with a third air inlet and a second air outlet, with the second air outlet located between the heat dissipation blades and the generator set.

[0015] To ensure that external cold air enters the second air guide shroud, in some preferred embodiments, the second air guide shroud is provided with a fourth air inlet, which is located between the third air inlet and the second air outlet.

[0016] The beneficial effects of this utility model are as follows: When the open-type diesel generator of this utility model is in use, an inverter is installed on the outer frame. The inverter stabilizes the output voltage and frequency of the generator set. With the cooperation of the guiding mechanism and the first heat dissipation mechanism, the heat dissipation of the inverter and the generator set is stable and reliable, ensuring the stable and reliable operation of the inverter and the generator set. This avoids the problem that the output voltage and frequency of the generator set are prone to fluctuation due to load when the existing open-type diesel generator is running, which affects the stability of power supply. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is the front view of this utility model; Figure 3 This is the left view of this utility model; Figure 4This is the right view of this utility model; Figure 5 This is a top view of the present invention; Figure 6 yes Figure 3 Sectional view (AA); Figure 7 yes Figure 6 A magnified view of part B in the image.

[0019] In the diagram: 1. Outer frame; 2. Generator set; 3. Inverter. 4. First heat dissipation mechanism, 401. First air guide cover, 402. Flywheel fan blade, 403. Air intake hole, 404. Air outlet hole; 5. Guiding mechanism; 501. Outer shell; 502. Cavity; 503. First air outlet; 504. First air inlet; 505. Second air inlet; 506. Flow guide. 6. Second heat dissipation mechanism, 601. Second air guide shroud, 602. Third air inlet, 603. Second air outlet, 604. Fourth air inlet. Detailed Implementation

[0020] like Figure 1-7 As shown, an open-type diesel generator includes an outer frame 1, a generator set 2, and an inverter 3. The inverter 3 and the generator set 2 are both fixedly installed on the outer frame 1. The inverter 3 is connected to the generator set 2. The generator set 2 is provided with a first heat dissipation mechanism 4, which is drivenly connected to the generator set 2. The first heat dissipation mechanism 4 is located between the generator set 2 and the inverter 3. The inverter 3 is provided with a guiding mechanism 5, which is used to guide cold air to the inverter 3 for heat dissipation, and then guide the cooled air out of the first heat dissipation mechanism 4. The first heat dissipation mechanism 4 is used to first dissipate heat from the inverter 3 and then dissipate heat from the combustion chamber of the generator set 2.

[0021] The guiding mechanism 5 includes an outer casing 501, with a cavity 502 inside. The outer casing 501 is fixedly mounted on the outer frame 1. The inverter 3 is fixedly mounted inside the cavity 502 of the outer casing 501. A first air outlet 503 is provided on the outer casing 501, communicating with the cavity 502. The first air outlet 503 is located on the side of the outer casing 501 near the first heat dissipation mechanism 4. The outer casing 501 is provided with... The inverter 3 is located between the first air inlet 504 and the first air outlet 503, and the outer casing 501 is provided with a second air inlet 505 that communicates with the cavity 502. The second air inlet 505 is located between the first air inlet 504 and the first air outlet 503. Each first air inlet 504 is provided with a corresponding air guide 506, and the opening of the air guide 506 is set downward.

[0022] The first heat dissipation mechanism 4 includes a first air guide shroud 401 fixedly installed on the generator set 2. The first air guide shroud 401 is provided with a flywheel fan blade 402 that is connected to the generator set 2 in a transmission. One side of the first air guide shroud 401 is provided with an air intake hole 403 corresponding to the first air outlet hole 503. The first air guide shroud 401 is provided with an air supply hole 404 for dissipating heat from the generator set 2.

[0023] The generator set 2 is provided with a second heat dissipation mechanism 6 for dissipating heat from its body. The generator set 2 is located between the first heat dissipation mechanism 4 and the second heat dissipation mechanism 6. The second heat dissipation mechanism 6 includes a second air guide shroud 601. The second air guide shroud 601 is provided with heat dissipation blades that are connected to the generator set 2. The second air guide shroud 601 is provided with a third air inlet 602 and a second air outlet 603. The second air outlet 603 is located between the heat dissipation blades and the generator set 2. The second air guide shroud 601 is provided with a fourth air inlet 604. The fourth air inlet 604 is located between the third air inlet 602 and the second air outlet 603.

[0024] In this embodiment, the generator set 2 mainly includes a body, with the combustion chamber located above the base. The first heat dissipation mechanism 4 dissipates heat from the combustion chamber above the generator set 2, and the second heat dissipation mechanism 6 dissipates heat from the lower body. By dissipating heat from both the top and bottom, and by dissipating heat from the inverter 3, the first heat dissipation mechanism 4 can also dissipate heat from the combustion chamber above the generator set 2, greatly improving the utilization rate of the first heat dissipation mechanism 4. This results in a compact overall structure for the generator set 2 and stable and reliable overall generator operation. At the same time, the rotating shaft on the generator set 2 is connected to the first heat dissipation mechanism 4 and the second heat dissipation mechanism 6 respectively. That is, the flywheel blade 402 of the first heat dissipation mechanism 4 is fixed to one end of the rotating shaft, and the heat dissipation blades of the second heat dissipation mechanism 6 are fixed to the other end of the rotating shaft.

[0025] Its working principle is as follows: When in use, generator set 2 is started and runs. At the same time, the shaft of generator set 2 rotates, causing the first cooling mechanism 4 and the second cooling mechanism 6 to operate. The flywheel fan blade 402 of the first cooling mechanism 4 rotates, driving airflow. This allows the cold air outside the outer casing 501 of the guide mechanism 5 to enter the cavity 502 through the first air inlet 504 and the second air inlet 505, respectively, to dissipate heat from the inverter 3 inside the cavity 502. The cooled cavity 502 and the cooling air continue to mix. The combined air is supplied to the first heat dissipation mechanism 4 through the first air outlet 503, enters through the air inlet 403 on one side of the first air guide shroud 401 of the first heat dissipation mechanism 4, and is then discharged to the combustion chamber of the generator set 2 through the air outlet 404. At the same time, the heat dissipation fan blades of the second heat dissipation mechanism 6 rotate and introduce external cold air into the second air guide shroud 601 through the fourth air inlet 604 and the third air inlet 602, and then discharges through the second air outlet 603 on the second air guide shroud 601, thus dissipating heat from the engine body below the combustion chamber of the generator set 2.

[0026] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An open-type diesel generator, comprising an outer frame (1) and a generator set (2) mounted on the outer frame (1), characterized in that: An inverter (3) is provided on the outer frame (1). The inverter (3) is connected to the generator set (2). The generator set (2) is provided with a first heat dissipation mechanism (4) that is connected to it in a transmission. The first heat dissipation mechanism (4) is located between the generator set (2) and the inverter (3). The inverter (3) is provided with a guide mechanism (5) for guiding cold air to the inverter (3) for heat dissipation, and then guiding the heat-dissipated gas through the guide mechanism (5) in the first heat dissipation mechanism (4). The first heat dissipation mechanism (4) is used to first dissipate heat from the inverter (3) and then dissipate heat from the combustion chamber of the generator set (2).

2. The open-type diesel generator according to claim 1, characterized in that: The guiding mechanism (5) includes an outer shell (501) with an internal cavity (502). The outer shell (501) is fixedly installed on the outer frame (1). The inverter (3) is fixedly installed inside the cavity (502) of the outer shell (501). The outer shell (501) is provided with a first air outlet (503) communicating with the cavity (502). The first air outlet (503) is located on the side of the outer shell (501) close to the first heat dissipation mechanism (4). The outer shell (501) is provided with a plurality of first air inlets (504) communicating with the cavity (502).

3. The open-type diesel generator according to claim 2, characterized in that: The inverter (3) is located between the first air inlet (504) and the first air outlet (503).

4. The open-type diesel generator according to claim 3, characterized in that: The outer casing (501) is provided with a second air inlet (505) that communicates with the cavity (502). The second air inlet (505) is located between the first air inlet (504) and the first air outlet (503).

5. The open-type diesel generator according to claim 2, 3, or 4, characterized in that: Each of the first air inlets (504) is provided with a corresponding air guide (506).

6. The open-type diesel generator according to claim 5, characterized in that: The opening of the flow guide (506) is set downward.

7. The open-type diesel generator according to claim 6, characterized in that: The first heat dissipation mechanism (4) includes a first air guide shroud (401) fixedly installed on the generator set (2). The first air guide shroud (401) is provided with a flywheel fan blade (402) that is connected to the generator set (2) in a transmission. One side of the first air guide shroud (401) is provided with an air inlet (403) corresponding to the first air outlet (503). The first air guide shroud (401) is provided with an air supply hole (404) for dissipating heat from the generator set (2).

8. The open-type diesel generator according to claim 1, characterized in that: The generator set (2) is provided with a second heat dissipation mechanism (6) for dissipating heat from its body, and the generator set (2) is located between the first heat dissipation mechanism (4) and the second heat dissipation mechanism (6).

9. The open-type diesel generator according to claim 8, characterized in that: The second heat dissipation mechanism (6) includes a second air guide shroud (601), inside which are heat dissipation blades that are connected to the generator set (2). The second air guide shroud (601) is provided with a third air inlet (602) and a second air outlet (603), and the second air outlet (603) is located between the heat dissipation blades and the generator set (2).

10. The open-type diesel generator according to claim 9, characterized in that: The second air guide shroud (601) is provided with a fourth air inlet (604), which is located between the third air inlet (602) and the second air outlet (603).

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