A cooling system for a silent digital variable frequency generator

Abstract

The application discloses a cooling system of a mute digital frequency conversion generator, which comprises a main body, an engine, a water pump and a water tank installed on the main body, the engine is connected with a generator, the water tank is filled with cooling water, the engine comprises a cylinder body and a cylinder head, the water pump is connected with a crank mechanism of the engine, the water tank is connected with the water pump through a first water inlet pipe, the water pump is connected with the cylinder body through a second water inlet pipe, the cylinder body and the cylinder head are internally provided with cooling water channels which are communicated with each other, or the cylinder body and the cylinder head are externally provided with cooling water channels, the cylinder head is connected with the water tank through a backwater pipe, and when in use, the engine crank drives the water pump to rotate, the cooling water in the water tank is transported into the cooling water channels through the first water inlet pipe and the second water inlet pipe, the cylinder body and the cylinder head are water-cooled and cooled, and then the cooling water is returned to the water tank through the backwater pipe.

Description

Technical Field

[0001] This application relates to the field of generator technology, and in particular to a cooling system for a silent digital inverter generator. Background Technology

[0002] Currently, the cooling structure of most digital inverter generators on the market is forced air cooling. Because silent digital inverter generators enclose the entire engine in plastic or sheet metal parts, heat dissipation is difficult. Excessive heat leads to increased engine temperature, reduced engine power, decreased generator efficiency, and reduced component reliability, affecting the machine's basic performance and hindering normal customer use.

[0003] The above content is used to help understand the technical solution of this application. Summary of the Invention

[0004] Based on this, this application provides a cooling system for a silent digital inverter generator, which reduces the temperature of the engine and generator, improves the overall reliability and stability of the machine, reduces the noise of the generator, and increases engine power and generator performance under the same displacement.

[0005] The technical solution adopted by this application to solve its technical problem is: A cooling system for a silent digital inverter generator includes a main body, and an engine, a water pump, and a water tank mounted on the main body. The engine is connected to a generator, and the water tank is filled with cooling water. The engine includes a cylinder block and a cylinder head. The water pump is connected to the crankshaft mechanism of the engine. The water tank and the water pump are connected via a first inlet pipe. The water pump and the cylinder block are connected via a second inlet pipe. Cooling water channels are provided inside the cylinder block and the cylinder head, or on the outer surfaces of the cylinder block and the cylinder head. The cylinder head and the water tank are connected via a return pipe. In use, the engine crankshaft drives the water pump to rotate, transporting the cooling water in the water tank to the cooling water passage through the first water inlet pipe and the second water inlet pipe to cool the cylinder block and cylinder head with water cooling, and then returning to the water tank through the return water pipe.

[0006] In one embodiment, the system further includes a hood for covering the engine.

[0007] In one embodiment, the housing further includes a left housing, a right housing, an electronic control hood, and an inverter.

[0008] In one embodiment, the electronically controlled mask is further provided with an air inlet, which is located near one side of the water tank.

[0009] In one embodiment, the inverter is further arranged behind the water tank, and the cooling air cools the water tank and immediately cools the inverter.

[0010] In one embodiment, during operation, the crank of the engine rotates and creates a negative pressure, drawing in external cooling air from the bottom of the engine and the air inlet of the electronic control shroud to air-cool the engine and the water tank.

[0011] In one embodiment, the engine and generator are further connected in a direct-drive configuration, or with a reducer, or with a clutch.

[0012] In one embodiment, the generator further includes a stator and a rotor.

[0013] In one embodiment, the top of the water tank is provided with a water inlet and a water tank cover for removably closing the water inlet.

[0014] In one embodiment, the first inlet pipe is located at the lower end of the water tank, and the return pipe is located at the upper end of the water tank.

[0015] The beneficial effects of this application are as follows: First, by using water cooling, the high-temperature heat of the engine is carried away by the relatively low-temperature cooling water. The high-temperature water is then cooled by the water tank and then further cooled by the engine combustion chamber. This process is repeated, thereby reducing the engine temperature. Since the engine temperature is lowered, the engine compression ratio can be appropriately increased, thus increasing engine power.

[0016] Secondly, water channels are designed near the engine block and cylinder head. These water channels can block some of the noise during the engine's power stroke and compression stroke, thus reducing noise.

[0017] Thirdly, the air intake is designed to be oriented in order to improve the engine's cooling efficiency by combining air cooling with water cooling. At the same time, it can accelerate the cooling of the coolant in the water tank for subsequent recycling. Attached Figure Description

[0018] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the main structure of this application.

[0020] Figure 2 This is a side view of the structure of this application.

[0021] Figure 3 This is a top view structural diagram of this application.

[0022] Figure 4This is a schematic diagram of the water inlet direction, water outlet direction, and air inlet direction of this application.

[0023] Figure 5 This is a schematic diagram of the overall assembly structure of this application.

[0024] Attached reference numerals: 1. Water tank; 2. Water tank cover; 3. Inverter; 4. Engine; 5. Return water pipe; 6. Cylinder head; 7. Second water inlet pipe; 8. Cylinder block; 9. Water pump; 10. First water inlet pipe; 11. Generator; 12. Generator housing; 13. Electronic control panel; S1. Water inlet direction; S2. Water outlet direction; S3. Air inlet direction. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.

[0026] Please refer to Figure 1-5 The following is a specific embodiment of this application: a cooling system for a silent digital inverter generator, the cooling system comprising a main body, and an engine 4, a water pump 9, and a water tank 1 mounted on the main body. The engine 4 is connected to a generator 11. The water tank 1 is filled with cooling water. The engine 4 includes a cylinder block 8 and a cylinder head 6. The water pump 9 is connected to the crankshaft mechanism of the engine 4. The water tank 1 and the water pump 9 are connected by a first water inlet pipe 10. The water pump 9 and the cylinder block 8 are connected by a second water inlet pipe 7. The cylinder block 8 and the cylinder head 6 are provided with cooling water channels inside, or the cylinder block 8 and the cylinder head 6 are provided with cooling water channels on their outer surfaces. The cylinder head 6 and the water tank 1 are connected by a return water pipe 5.

[0027] The water pump 9 can be a centrifugal pump or an axial flow pump, etc. The impeller shaft inside the water pump 9 is mechanically connected to the crankshaft mechanism of the engine, so that when the engine 4 is working, it can drive the impeller inside the water pump 9 to rotate at high speed, thereby realizing the delivery of cooling water.

[0028] Reference Figure 5As shown, it also includes a hood for covering the engine 4. The hood includes an engine housing 12 and an electronic control hood 13. The engine housing 12 includes a left housing and a right housing that cooperate with each other. This hood basically covers the periphery of the engine 4, but does not cover the bottom of the engine 4.

[0029] An air inlet is provided on the electronically controlled mask 13, and the air inlet is located on one side of the water tank 1.

[0030] In order to convert the current generated by the generator stator and rotor into a standard sinusoidal current that meets the requirements of "mains power", an inverter 3 is also installed on the main body.

[0031] As several options, the engine 4 and generator 11 can be connected in a direct-drive configuration, or with a reducer, or with a clutch. The generator 11 includes a stator and a rotor.

[0032] To facilitate the replenishment of cooling water inside the water tank 1, a water inlet is provided on the top of the water tank 1, and a water tank cover 2 is provided to detachably close the water inlet. Furthermore, the first water inlet pipe 10 is located at the lower end of the water tank 1, and the return water pipe 5 is located at the upper end of the water tank 1, which facilitates the input and output of cooling water.

[0033] When using it: Water cooling section: Refer to Figure 4 As shown in the water inlet direction S1 and water outlet direction S2, the crankshaft of the engine 4 drives the water pump to rotate, and transports the cooling water in the water tank 1 to the cooling water channel through the first water inlet pipe 10 and the second water inlet pipe 7 to cool the cylinder block 8 and cylinder head 6 with water cooling, and then returns to the water tank 1 through the return water pipe 5.

[0034] Air-cooled section: Refer to Figure 4 As shown in the air intake direction S3, the crank of the engine 4 rotates at high speed, creating a negative pressure inside the engine hood. This draws in external cooling air from the bottom of the engine and the air intake of the electronic control hood 13, providing air cooling for the engine 4, water tank 1, and inverter, and meeting the needs of engine cooling and combustion.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A cooling system for a silent digital inverter generator, the cooling system comprising a main body, and an engine, a water pump, and a water tank mounted on the main body, wherein the engine is connected to a generator, and the water tank is filled with cooling water; Its features are, The engine includes a cylinder block and a cylinder head; The water pump is connected to the crankshaft mechanism of the engine; The water tank and the water pump are connected by a first inlet pipe, which is located at the lower end of the water tank. The water pump is connected to the cylinder via a second water inlet pipe; The cylinder block and cylinder head are provided with cooling water channels connecting the two inside, or the cylinder block and cylinder head are provided with cooling water channels on their outer surfaces. The cylinder head is connected to the water tank via a return water pipe, which is located at the upper end of the water tank. It also includes a hood for covering the engine, the hood comprising a left housing, a right housing, an electronic control hood, and an inverter; the electronic control hood is provided with an air inlet, the air inlet being close to one side of the water tank; the inverter is arranged behind the water tank, the cooling air cooling the water tank and then immediately cooling the inverter; In use, the engine crankshaft drives the water pump to rotate, and delivers the cooling water in the water tank to the cooling water passage through the first water inlet pipe and the second water inlet pipe to cool the cylinder block and cylinder head with water cooling, and then returns to the water tank through the return water pipe; The crank of the engine rotates and creates negative pressure, drawing in external cooling air from the bottom of the engine and the air inlet of the electronic control shroud to air-cool the engine and water tank.

2. The cooling system for a silent digital inverter generator according to claim 1, characterized in that, The engine and generator are connected in a direct-drive configuration, or with a speed reducer, or with a clutch.

3. The cooling system for a silent digital inverter generator according to claim 1, characterized in that, The generator includes a stator and a rotor.

4. The cooling system for a silent digital inverter generator according to claim 1, characterized in that, The top of the water tank is provided with a water inlet and a water tank cover for removably sealing the water inlet.

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