Heat dissipation structure of diesel generator

Abstract

The utility model discloses a heat dissipation structure of a diesel generator, which comprises a mounting frame, a diesel generator body is fixed at the top of the mounting frame, and is characterized in that a support frame is fixed on the mounting frame, the diesel generator body is positioned on the inner side of the support frame, and cooling mechanisms are arranged on the left side and the right side of the support frame; a movable mechanism is arranged on the upper surface of the supporting frame; the cooling mechanism comprises a first mounting frame and a cold water tank, a second mounting frame is fixed to the surface of the first mounting frame, serpentine pipes penetrate through the surfaces of the first mounting frame and the second mounting frame, the tops of the serpentine pipes communicate with a liquid adding opening, the bottoms of the serpentine pipes communicate with a liquid discharging opening, and a first fan is fixed to the surface of the second mounting frame; the surface of the cold water tank communicates with a water pump, and the liquid discharging end of the water pump communicates with a liquid adding flow dividing pipe. Through the cooling mechanism, the fan can directly blow cold air to the diesel generator and can blow air from the two sides and the top at the same time, so that the cooling effect of the diesel generator is better.

Description

Technical Field

[0001] This utility model relates to the field of diesel generator technology, specifically to the heat dissipation structure of a diesel generator. Background Technology

[0002] A diesel generator is a small power generation device that uses diesel fuel and a diesel engine as the prime mover to drive a generator to generate electricity. The complete set of units generally consists of a diesel engine, generator, control box, fuel tank, starting and control batteries, protection devices, emergency cabinet and other components.

[0003] During operation, diesel combustion generates a large amount of heat, causing the internal temperature of the generator to rise. Although current diesel generators are equipped with heat dissipation structures, most of them have relatively simple heat dissipation structures, mostly using a single fan for cooling. This results in the continuous accumulation of heat during diesel generator operation, leading to poor cooling performance. Utility Model Content

[0004] The purpose of this invention is to provide a heat dissipation structure for diesel generators. Through the cooling mechanism, the fan can directly blow cold air onto the diesel generator and can blow air from both sides and the top at the same time, so as to make the cooling effect of the diesel generator better.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heat dissipation structure for a diesel generator, including a mounting frame, wherein a diesel generator body is fixed to the top of the mounting frame, characterized in that: a support frame is fixed on the mounting frame, the diesel generator body is located inside the support frame, cooling mechanisms are provided on both the left and right sides of the support frame, and a movable mechanism is provided on the upper surface of the support frame;

[0006] The cooling mechanism includes a first mounting frame and a cold water tank. A second mounting frame is fixed to the surface of the first mounting frame. A serpentine tube extends through the surfaces of both the first and second mounting frames. A liquid inlet is connected to the top of the serpentine tube, and a liquid outlet is connected to the bottom of the serpentine tube. A first fan is fixed to the surface of the second mounting frame. A water pump is connected to the surface of the cold water tank. A liquid inlet distribution pipe is connected to the drain end of the water pump. The liquid inlet distribution pipe is connected to the liquid inlet. A return distribution pipe is connected to the bottom of the drain outlet. The return distribution pipe is connected to the cold water tank. A first cooling plate is fixed to the top of the cold water tank.

[0007] Furthermore, a fourth fan is fixed to the top of the first cooling chip.

[0008] Furthermore, a third heat-conducting fin is fixed to the inner wall of both the first and second mounting frames, and the third heat-conducting fin penetrates the surface of the serpentine tube.

[0009] Furthermore, a one-way valve is connected to the surface of the return diversion pipe.

[0010] Furthermore, the movable mechanism includes two U-shaped plates, which are fixedly connected to the surface of the support frame. Side blocks are fixed to the surface of the U-shaped plates, and a reciprocating screw is rotatably connected to the inner wall of the U-shaped plates. The reciprocating screw passes through the side blocks, and a slider is threaded onto the surface of the reciprocating screw. A heat-conducting plate is provided on the slider. A first heat-conducting fin is fixed to the bottom of the heat-conducting plate, and a second fan is fixed to the bottom of the first heat-conducting fin. A second cooling plate is fixed to the top of the heat-conducting plate, and a second heat-conducting fin is fixed to the top of the second cooling plate. A third fan is fixed to the top of the second heat-conducting fin.

[0011] Furthermore, a drive motor is fixed to the surface of one side of the U-shaped plate. The output shaft of the drive motor passes through the U-shaped plate and is fixedly connected to one end of the reciprocating lead screw. A transmission wheel is fixed to the surface of the reciprocating lead screw. The transmission wheels on both sides are connected by belt drive. No threads are provided on the surface of the reciprocating lead screw at the point where it passes through the side block and at the fixed point of the transmission wheel.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In this invention, when the water pump is working, it can divert cold water through the liquid filling pipe and the liquid filling port to the two serpentine tubes. Since the two liquid filling ports are positioned opposite each other, the cold water flows in opposite directions inside the two serpentine tubes, thus making the average temperature at the inlet and outlet of the two serpentine tubes equal and the thermal conductivity consistent, avoiding local overheating. This solves the problem of the fluid temperature gradually increasing and the thermal conductivity gradually decreasing from the inlet to the outlet in conventional flow channels, thereby improving the heat dissipation effect on the diesel generator body. When the second cooling plate is working, it can cool the heat conduction plate. The first heat conduction fins can increase the contact area with the air and conduct heat from the heat conduction plate, allowing the second fan to blow cold air to the top of the diesel generator body. The moving mechanism can also drive the heat conduction plate to move back and forth, achieving a more comprehensive cooling effect on the diesel generator body. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0016] Figure 3 This is a schematic diagram of the cooling mechanism in this utility model;

[0017] Figure 4 This is a partial disassembled structural diagram of the cooling mechanism in this utility model;

[0018] Figure 5This is a partial structural schematic diagram of the cooling mechanism in this utility model;

[0019] Figure 6 This is a schematic diagram of the moving mechanism in this utility model.

[0020] In the diagram: 1. Mounting frame; 2. Diesel generator body; 3. Cooling mechanism; 301. First mounting frame; 302. Second mounting frame; 303. Serpentine pipe; 304. One-way valve; 305. First fan; 306. Filler port; 307. Drain port; 308. Cold water tank; 309. Water pump; 310. Filler manifold; 311. Return manifold; 312. First cooling element; 313. Heat-conducting plate; 314. First heat-conducting fin; 315. Second fan; 316. Second cooling element; 317. Second heat-conducting fin; 318. Third fan; 319. Fourth fan; 320. Third heat-conducting fin; 4. Support frame; 5. Movable mechanism; 501. U-shaped plate; 502. Side block; 503. Reciprocating screw; 504. Slider; 505. Drive motor; 506. Transmission wheel. Detailed Implementation

[0021] Please see Figures 1-6 A heat dissipation structure for a diesel generator includes a mounting bracket, on the top of which the diesel generator body is fixed. The characteristic feature is that a support frame is fixed on the mounting bracket, the diesel generator body is located inside the support frame, cooling mechanisms are provided on both the left and right sides of the support frame, and a movable mechanism is provided on the upper surface of the support frame.

[0022] The cooling mechanism 3 allows the diesel generator body 2 to receive air cooling from multiple sides simultaneously, and the moving mechanism 5 is used to drive the cooling structure located at the top to move.

[0023] The cooling mechanism 3 includes a first mounting frame 301 and a cold water tank 308. A second mounting frame 302 is fixed to the surface of the first mounting frame 301. The first mounting frame 301 is fixedly connected to the surface of the mounting bracket 1. A serpentine tube 303 penetrates the surfaces of both the first mounting frame 301 and the second mounting frame 302. The serpentine tube 303 is fixedly connected to the inner wall of the penetration point between the first mounting frame 301 and the second mounting frame 302. A liquid inlet 306 is connected to the top of the serpentine tube 303, and a liquid outlet 307 is connected to the bottom of the serpentine tube 303. A first fan 305 is fixed to the surface of the second mounting frame 302. The cold water tank 308 is fixed to the top of the mounting bracket 1. A water pump 309 is connected to the surface of the cold water tank 308. The water pump 309 is fixed to the top of the mounting bracket 1. The discharge end of the water pump 309 is connected to a liquid filling pipe 310. The liquid filling pipe 310 is connected to a liquid filling port 306. The bottom of the discharge port 307 is connected to a return pipe 311. The return pipe 311 is connected to the cold water tank 308. A first cooling chip 312 is fixed to the top of the cold water tank 308. The liquid filling port 306 on the surface of the first mounting frame 301 and the liquid filling port 306 on the surface of the second mounting frame 302 are arranged opposite to each other.

[0024] The cold water tank 308 can be filled with cold water. When the first cooling chip 312 is working, it can cool the cold water tank 308, thereby cooling the cold water and ensuring that the diesel generator body 2 can receive heat dissipation for a long time. When the water pump 309 is working, it can divert the cold water through the liquid filling pipe 310 and the liquid filling port 306 to the two serpentine pipes 303. Since the two liquid filling ports 306 are oppositely positioned, the cold water flow direction inside the two serpentine pipes 303 is opposite, so that the average temperature of the inlet and outlet of the two serpentine pipes 303 is equal and the thermal conductivity is consistent, avoiding local overheating. This solves the problem that the temperature of the fluid gradually increases and the thermal conductivity gradually decreases from the inlet to the outlet in conventional flow channels, thereby improving the heat dissipation effect of the diesel generator body 2. The cold water inside the serpentine pipes 303 can also flow back to the cold water tank 308 through the return diversion pipe 311 to complete the cold water circulation.

[0025] Furthermore, a fourth fan 319 is fixed to the top of the first cooling chip 312;

[0026] Furthermore, the inner walls of the first mounting frame 301 and the second mounting frame 302 are both fixed with third heat-conducting fins 320, and the surface of the serpentine tube 303 is penetrated by the third heat-conducting fins 320.

[0027] The third heat-conducting fin 320 can increase the contact area with the air, so that the airflow blown out by the first fan 305 can carry away more of the cold energy on the surface of the serpentine tube 303, thereby improving the heat dissipation effect on the diesel generator body 2.

[0028] Furthermore, a one-way valve 304 is connected to the surface of the return diversion pipe 311;

[0029] The design of the one-way valve 304 prevents the liquid from rushing back into the serpentine tube 303 when the liquid flows through the return diversion pipe 311.

[0030] Furthermore, the active mechanism 5 includes two U-shaped plates 501. The U-shaped plates 501 are fixedly connected to the surface of the support frame 4. Side blocks 502 are fixed to the surface of the U-shaped plates 501. A reciprocating screw 503 is rotatably connected to the inner wall of the U-shaped plates 501. The reciprocating screw 503 passes through the side blocks 502. A slider 504 is threadedly connected to the surface of the reciprocating screw 503. A heat-conducting plate 313 is provided on the slider 504. A first heat-conducting fin 314 is fixed to the bottom of the heat-conducting plate 313. A second fan 315 is fixed to the bottom of the first heat-conducting fin 314. A second cooling plate 316 is fixed to the top of the heat-conducting plate 313. A second heat-conducting fin 317 is fixed to the top of the second cooling plate 316. A third fan 318 is fixed to the top of the second heat-conducting fin 317.

[0031] When the second cooling plate 316 is working, it can cool the heat conduction plate 313. The first heat conduction fin 314 can increase the contact area with the air and conduct the heat of the heat conduction plate 313, so that the second fan 315 can blow cold air to the top of the diesel generator body 2. The moving mechanism 5 can also drive the heat conduction plate 313 to move back and forth, so as to achieve a more comprehensive cooling effect on the diesel generator body 2.

[0032] When the second cooling chip 316 is working, it transfers heat to the second heat-conducting fin 317. When the third fan 318 is working, it can cool the second heat-conducting fin 317. When the fourth fan 319 is working, it can also cool the first cooling chip 312, thus ensuring that the first cooling chip 312 and the second cooling chip 316 can work normally.

[0033] When the reciprocating screw 503 rotates, the slider 504 can reciprocate on the surface of the reciprocating screw 503 due to the influence of the thread, so that the slider 504 can drive the heat conduction plate 313 to move together, thereby expanding the heat dissipation area of ​​the second fan 315 on the top of the diesel generator body 2, thereby improving the heat dissipation effect of the diesel generator body 2.

[0034] Furthermore, a drive motor 505 is fixed to the surface of one side of the U-shaped plate 501. The output shaft of the drive motor 505 passes through the U-shaped plate 501 and is fixedly connected to one end of the reciprocating screw 503. A transmission wheel 506 is fixed to the surface of the reciprocating screw 503. The two transmission wheels 506 are connected by belt drive. No threads are provided on the surface of the reciprocating screw 503 where it passes through the side block 502 and the surface of the fixed transmission wheel 506.

[0035] When the drive motor 505 starts, it can drive one side of the reciprocating screw 503 to rotate. This side of the reciprocating screw 503 can then drive the other side of the reciprocating screw 503 to rotate synchronously through the transmission wheel 506 and the belt, thereby ensuring that the two reciprocating screws 503 can rotate at the same time, so that the slider 504 can move normally on the surface of the reciprocating screw 503.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation structure for a diesel generator, comprising a mounting bracket (1), wherein a diesel generator body (2) is fixed to the top of the mounting bracket (1), characterized in that: A support frame (4) is fixed on the mounting bracket (1), the diesel generator body (2) is located inside the support frame (4), and cooling mechanisms (3) are provided on both the left and right sides of the support frame (4). A movable mechanism (5) is provided on the upper surface of the support frame (4). The cooling mechanism (3) includes a first mounting frame (301) and a cold water tank (308). A second mounting frame (302) is fixed to the surface of the first mounting frame (301). A serpentine tube (303) penetrates the surfaces of both the first mounting frame (301) and the second mounting frame (302). A liquid inlet (306) is connected to the top of the serpentine tube (303), and a liquid outlet (307) is connected to the bottom of the serpentine tube (303). The surface of the second mounting frame (302) is fixed to the surface of the second mounting frame (308). A first fan (305) is fixed, a water pump (309) is connected to the surface of the cold water tank (308), a liquid addition pipe (310) is connected to the discharge end of the water pump (309), the liquid addition pipe (310) is connected to the liquid addition port (306), a return pipe (311) is connected to the bottom of the discharge port (307), the return pipe (311) is connected to the cold water tank (308), and a first cooling chip (312) is fixed to the top of the cold water tank (308).

2. The heat dissipation structure of the diesel generator according to claim 1, characterized in that: A fourth fan (319) is fixed on the top of the first cooling chip (312).

3. The heat dissipation structure of the diesel generator according to claim 1, characterized in that: The inner walls of the first mounting frame (301) and the second mounting frame (302) are both fixed with a third heat-conducting fin (320), and the surface of the serpentine tube (303) is penetrated by the third heat-conducting fin (320).

4. The heat dissipation structure of the diesel generator according to claim 1, characterized in that: The surface of the return flow divider (311) is connected to a one-way valve (304).

5. The heat dissipation structure of the diesel generator according to claim 1, characterized in that: The movable mechanism (5) includes two U-shaped plates (501). Each U-shaped plate (501) is fixedly connected to the surface of the support frame (4). A side block (502) is fixed to the surface of each U-shaped plate (501). A reciprocating screw (503) is rotatably connected to the inner wall of each U-shaped plate (501). The reciprocating screw (503) passes through the side block (502). A slider (504) is threaded onto the surface of the reciprocating screw (503). A heat-conducting plate (313) is provided on the slider (504). A first heat-conducting fin (314) is fixed at the bottom of the heat-conducting plate (313). A second fan (315) is fixed at the bottom of the first heat-conducting fin (314). A second cooling chip (316) is fixed at the top of the heat-conducting plate (313). A second heat-conducting fin (317) is fixed at the top of the second cooling chip (316). A third fan (318) is fixed at the top of the second heat-conducting fin (317).

6. The heat dissipation structure of the diesel generator according to claim 5, characterized in that: A drive motor (505) is fixed on the surface of the U-shaped plate (501) on one side. The output shaft of the drive motor (505) passes through the U-shaped plate (501) and is fixedly connected to one end of the reciprocating lead screw (503). A transmission wheel (506) is fixed on the surface of the reciprocating lead screw (503). The transmission wheels (506) on both sides are connected by belt drive. No threads are provided on the surface of the reciprocating lead screw (503) at the point where it passes through the side block (502) and at the fixed point of the transmission wheel (506).

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