Generator air duct heat dissipation structure of double-cylinder engine series

Abstract

The utility model is suitable for the technical field of engines, and provides a generator air duct heat dissipation structure of a double-cylinder engine series. Comprising a base, an engine body is installed at one end of the base, a motor is installed on the side, located on the engine body, of the base, a double-blade fan is installed between the engine body and the motor, and a silencer bin is installed at the top end of the motor and the top end of the double-blade fan; a double-blade fan is installed between an engine body and a motor, the double-blade fan exhausts air in two directions, the motor on one side and the crankcase cover side of the engine are cooled at the same time, and hot air in a generator case is absorbed; the two sets of partition plates are arranged in the cavity of the silencer bin, the air channels are separated through the partition plates on the two sides, air flows between the air channels do not interfere with each other, the air flows are guided to the same flow direction and then converged, optimization of the air channels is achieved, the heat dissipation condition in the case is improved, the overall temperature is reduced, and the working stability of the generator is kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine, in particular to a double cylinder engine series generator air duct heat dissipation structure. BACKGROUND

[0002] Double cylinder engine is usually designed to be relatively compact, facilitating use in limited space environment, the power of double cylinder engine is between single cylinder and multi cylinder, suitable for medium load demand; double cylinder engine maintains high fuel efficiency while providing necessary power; compared with multi cylinder engine, the structure of double cylinder engine is relatively simple, and it is more convenient to maintain; double cylinder engine can adapt to different working environment and climate conditions, double cylinder engine series generator becomes the first choice of many users with its moderate power, efficient performance and wide application scenarios. During selection and use, the above matters should be paid attention to, so as to ensure that the performance of the generator is fully exerted, and the use safety is ensured.

[0003] At present, the air duct structure of the double cylinder engine series silent generator on the market has poor heat dissipation effect, which leads to the risk of battery bulging due to high temperature inside the machine box, high temperature rise of the motor and performance decline of the whole machine. UTILITY MODEL CONTENTS

[0004] The utility model provides a double cylinder engine series generator air duct heat dissipation structure, which aims to solve the problem of poor heat dissipation effect of the air duct structure of the double cylinder engine series silent generator on the market, which leads to the risk of battery bulging due to high temperature inside the machine box, high temperature rise of the motor and performance decline of the whole machine.

[0005] The utility model is realized in this way, a double cylinder engine series generator air duct heat dissipation structure, including the base, the one end installation of base has the engine body, the side installation of base at engine body has motor, the installation has double leaf fan between engine body and motor, the top of motor and double leaf fan installs silencer bin, the side installation of silencer bin has exhaust port bin, the inside of silencer bin is cavity, be provided with two groups of baffle in the cavity.

[0006] Preferably, the end of the engine body away from the motor is provided with an engine air inlet.

[0007] The beneficial effects of the above further scheme are: clean, dry, sufficient and stable air is supplied to the engine to meet the demand of sufficient combustion inside the engine, and the engine body is provided with ventilation and heat dissipation effect.

[0008] Preferably, the silencer bin comprises: a bin body, the bin body is installed at the top of the motor and the double-leaf fan, the bin body is internally provided with a silencer, and the top of the bin body is fixedly connected with a bin cover.

[0009] The beneficial effect of the further scheme is that the exhaust noise of the engine is conveniently reduced, and the high-temperature exhaust gas can be safely and effectively discharged.

[0010] Preferably, the top end of the engine body is provided with two sets of cylinder heads, and the two sets of cylinder heads are internally provided with air ducts, and the outlets of the two sets of air ducts are in communication with the internal cavity of the silencer bin.

[0011] The beneficial effect of the further scheme is that the two sets of cylinder heads guide the flow of cooling air or cooling liquid to reduce the operating temperature of the engine, and the cooled air is discharged into the cavity and discharged from the exhaust outlet bin on the other side.

[0012] Preferably, the top end of the double-blade fan is provided with an air outlet, and the air outlet is in communication with the internal cavity of the silencer bin.

[0013] The beneficial effect of the further scheme is that the double-blade fan discharges air through the air outlet, discharges the cooled air into the cavity, cools the crankcase cover side of the motor and the engine on one side, and absorbs the hot air inside the generator case, causing negative pressure inside the case, thereby creating air intake conditions for the air inlet arranged on the case, and enabling the air inlet to have air flow when the generator set is cooled in the dead angle. The air in the entire case is circulated.

[0014] Preferably, one side of the two sets of baffles is provided with a circular arc, the circular arc is matched with the side wall of the silencer, the two sets of baffles are sequentially matched with the silencer through the circular arc on one side, and the bottom is fixedly connected with the bin body. The two sets of baffles sequentially divide the air duct outlets of the two sets of cylinder heads and the air outlets of the double-blade fan into three air duct cavities.

[0015] The beneficial effect of the further scheme is that the air flow between the air ducts does not interfere with each other, and the air flow is guided to the same flow direction before being discharged from the exhaust outlet bin, thereby improving the heat dissipation effect and efficiency.

[0016] Preferably, the exhaust outlet bin is internally provided with an arc-shaped exhaust passage, and one end of the exhaust outlet bin is in communication with the internal cavity of the silencer bin.

[0017] The beneficial effect of the further scheme is that the exhaust outlet bin takes in air on one side of the upper end and discharges air on the other side of the lower end, and the exhaust outlet of the exhaust outlet bin is lowered to improve the noise.

[0018] Preferably, an exhaust pipe is arranged between the engine body and the silencer, and the two are in communication through the exhaust pipe.

[0019] The beneficial effects of adopting the above-mentioned further solutions are: reducing engine exhaust noise through the muffler and enabling the safe and effective discharge of high-temperature exhaust gases.

[0020] Preferably, a motor-side air inlet is provided on one side of the motor.

[0021] The beneficial effects of adopting the above-mentioned further solution are: it facilitates air intake cooling of the motor, cools and reduces the temperature of the motor, and ensures the normal operation of the motor.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a dual-cylinder engine series generator air duct cooling structure. By installing a double-blade fan between the engine block and the motor, the double-blade fan draws air in both directions, simultaneously cooling one side of the motor and the crankcase cover side of the engine. It also absorbs hot air from inside the generator case, creating negative pressure inside the case. This allows the air inlets arranged on the case to create intake conditions, ensuring that even when the generator set is in a cooling dead zone, the air inlets can still circulate air throughout the entire case, greatly improving the cooling effect of the unit. Furthermore, by installing two sets of baffles in the muffler compartment cavity and using the baffles on both sides to separate the air ducts, the airflow between the ducts does not interfere with each other. The airflow is guided to the same direction before converging, optimizing the air ducts, thereby improving the heat dissipation conditions inside the case, reducing the overall temperature, and maintaining the generator's operational stability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the side view structure;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of the middle (without the cover).

[0026] In the diagram: 1. Base; 2. Engine body; 3. Motor; 4. Dual-blade fan; 5. Muffler compartment; 51. Compartment body; 52. Muffler; 53. Compartment cover; 6. Exhaust compartment; 7. Partition; 8. Engine air inlet; 9. Cylinder head; 10. Exhaust pipe; 11. Motor side air inlet. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] Please see Figures 1-3This utility model provides a technical solution for a cooling structure of a dual-cylinder engine series generator: A cooling structure of a dual-cylinder engine series generator includes a base 1, an engine body 2 is installed at one end of the base 1, a motor 3 is installed on the side of the base 1 located on the engine body 2, a double-blade fan 4 is installed between the engine body 2 and the motor 3, a muffler chamber 5 is installed at the top of the motor 3 and the double-blade fan 4, an exhaust port chamber 6 is installed on one side of the muffler chamber 5, the muffler chamber 5 is a cavity, and two sets of partitions 7 are arranged in the cavity.

[0029] In this embodiment, a dual-blade fan 4 is installed between the engine block 2 and the motor 3. The dual-blade fan 4 draws air in both directions, simultaneously cooling one side of the motor 3 and the crankcase cover side of the engine. It also absorbs hot air from inside the generator case, creating negative pressure inside the case. This creates air intake conditions at the air inlets arranged on the case, allowing airflow to circulate the air throughout the entire case when the generator set is in a cooling dead zone. This greatly improves the cooling effect of the unit. By setting two sets of baffles 7 in the cavity of the muffler compartment 5 and dividing it into three air ducts using the baffles on both sides, the airflow between the air ducts does not interfere with each other. The airflow is guided to the same direction and then converges, thus optimizing the air ducts. This improves the heat dissipation conditions inside the case, reduces the overall temperature, and maintains the working stability of the generator.

[0030] Furthermore, an engine air inlet 8 is provided at the end of the engine body 2 that is away from the motor 3.

[0031] In this embodiment, an engine air inlet 8 is provided on the engine body 2. The engine air inlet 8 delivers clean, dry, sufficient and stable air to the engine to meet the requirements of complete combustion inside the engine, while providing ventilation and heat dissipation for the engine body.

[0032] Typically, the muffler compartment 5 includes: a compartment body 51, which is installed on top of the motor 3 and the double-blade fan 4; a muffler 52 is installed inside the compartment body 51; and a compartment cover 53 is fixedly connected to the top of the compartment body 51.

[0033] In this embodiment, a muffler compartment 5 is provided for installing a muffler 52 inside the compartment, which facilitates the reduction of engine exhaust noise and allows high-temperature exhaust gas to be discharged safely and effectively. The muffler compartment 5 includes a compartment body 51, a muffler 52, and a compartment cover 53. The muffler 52 is installed inside the compartment body 51 and is covered by the compartment cover 53, so that the interior of the compartment body 51 and the compartment cover 53 form an exhaust cavity.

[0034] Specifically, the top of the engine block 2 is provided with two sets of cylinder heads 9, and the two sets of cylinder heads 9 have air ducts inside, and the outlets of the two sets of air ducts are connected to the internal cavity of the muffler compartment 5.

[0035] In this embodiment, by setting two sets of cylinder heads 9 on the top end of the engine body 2, the two sets of cylinder head air ducts of the engine, a series of channels designed inside the cylinder head 9 are used to guide the flow of cooling air or cooling liquid to reduce the working temperature of the engine, and the design of the left and right cylinder head air ducts of the engine is crucial to the performance and service life of the engine. Through reasonable air duct design, it can ensure that the engine can still maintain a lower temperature when working under high load, thereby avoiding performance degradation or damage caused by overheating, and the exhaust ports of the two sets of cylinder heads 9 are arranged at the left and right ends of the internal cavity of the silencer bin 5 respectively, for discharging the cooled air into the cavity, and discharging from the exhaust port bin 6 on the other side.

[0036] In addition, the top end of the double-leaf fan 4 is provided with an air outlet, which is communicated with the internal cavity of the silencer bin 5.

[0037] In this embodiment, by setting the air outlet at the top end of the double-leaf fan 4, the double-leaf fan 4 can discharge air through the air outlet to discharge the cooled air into the cavity. The air outlet of the double-leaf fan 4 is located in the middle of the air outlet of the engine cylinder head 9. The double-leaf fan 4 can suck air in both directions, and at the same time cool the crankcase cover side of the motor 3 and the engine. The hot air inside the generator case is absorbed, causing negative pressure inside the case, so that the air inlet arranged on the case creates air intake conditions, and the air inlet of the generator set can drive the air circulation in the entire case when the cooling dead angle is opened.

[0038] In addition, one side of the two sets of partitions 7 is provided with a circular arc, which is matched with the side wall of the silencer 52. The two sets of partitions 7 are sequentially matched with the silencer 52 through the circular arc on one side, and the bottom is fixedly connected with the bin body 51. The two sets of partitions 7 sequentially divide the air outlet of the two sets of cylinder heads 9 and the air outlet of the double-leaf fan 4 into three air duct cavities.

[0039] In this embodiment, by setting the two sets of partitions 7, the air in the silencer bin 5 is divided into three air duct cavities, and the air outlet of the two sets of cylinder heads 9 and the air outlet of the double-leaf fan 4 are sequentially separated. The two sets of partitions 7 are sequentially matched with the silencer 52 through the circular arc on one side, and the top and side slope are sequentially matched with the bin cover 53 on the top, so that the three air duct cavities are sequentially separated, the air flow between the air ducts does not interfere with each other, the air flow is guided to the same flow direction, and then discharged from the exhaust port bin 6 after being combined, thereby improving the heat dissipation effect and efficiency.

[0040] Further, an arc-shaped exhaust passage is formed in the exhaust port bin 6, and one end of the exhaust port bin 6 is communicated with the internal cavity of the silencer bin 5.

[0041] In the embodiment, the air outlet bin 6 is provided with an arc-shaped air exhaust channel, air is inhaled from the upper end of the air outlet bin 6, and air is exhausted from the lower end of the air outlet bin 6, the air inlet of the air outlet bin 6 is communicated with the silencer bin 5, the air outlet of the two groups of cylinder heads 9 and the air outlet of the double-blade fan 4 are exhausted after being converged in the air outlet bin 6, the exhaust gas exhausted by the silencer 52 is exhausted after being converged in the air outlet bin 6, and the air outlet of the air outlet bin 6 is lowered, so that the noise is improved.

[0042] Further, the engine body 2 and the silencer 52 are provided with an exhaust pipe 10 and are communicated through the exhaust pipe 10.

[0043] In the embodiment, the engine is connected with the silencer 52 through the exhaust pipe 10, the exhaust noise of the engine is reduced through the silencer 52, and the high-temperature exhaust gas can be safely and effectively exhausted.

[0044] It should be noted that the motor 3 is provided with a motor side air inlet 11 on one side.

[0045] In the embodiment, the motor side air inlet 11 is arranged on the motor 3, so that the motor 3 can inhale air for cooling, the motor 3 is cooled, and the normal work of the motor 3 is ensured.

[0046] The above only describes the preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A twin-cylinder engine series generator air duct heat dissipation structure, characterized by: The utility model provides an engine and motor combined cooling device, including base (1), one end on base (1) is installed with engine body (2), one side of engine body (2) is installed with motor (3), and double-leaf fan (4) is installed between engine body (2) and motor (3), silencer bin (5) is installed at the top of motor (3) and double-leaf fan (4), exhaust port bin (6) is installed at one side of silencer bin (5), the inside of silencer bin (5) is cavity, and two groups of baffle (7) are arranged in the cavity.

2. A twin cylinder engine series generator air duct heat dissipation structure according to claim 1, characterized in that: The engine body (2) is provided with an engine air inlet (8) at one end away from the motor (3).

3. The twin cylinder engine series generator air duct heat sink structure of claim 1, wherein: The silencer bin (5) comprises a bin body (51) installed at the top of the motor (3) and the double-leaf fan (4), an internal silencer (52) installed in the bin body (51), and a bin cover (53) fixedly connected to the top of the bin body (51).

4. The twin cylinder engine series generator air duct heat sink structure according to claim 3, characterized by: The top of the engine body (2) is provided with two groups of cylinder heads (9), and air ducts are formed in the two groups of cylinder heads (9), and the outlets of the two groups of air ducts are in communication with the internal cavity of the silencer bin (5).

5. A twin cylinder engine series generator air duct heat sink structure according to claim 4, characterized by: The top of the double-leaf fan (4) is provided with an air outlet in communication with the internal cavity of the silencer bin (5).

6. A twin cylinder engine series generator air duct heat sink structure according to claim 5, characterized by: One side of each of the two groups of baffles (7) is provided with an arc adapted to the side wall of the silencer (52), and the two groups of baffles (7) are sequentially attached to the silencer (52) through the arc on one side and fixedly connected to the bin body (51) at the bottom, and the two groups of baffles (7) sequentially divide the air duct outlets of the two groups of cylinder heads (9) and the air outlet of the silencer bin (5) into three air duct cavities.

7. The twin cylinder engine series generator air duct heat sink structure of claim 1, wherein: The exhaust port bin (6) is internally provided with an arc-shaped exhaust passage, and one end of the exhaust port bin (6) is in communication with the internal cavity of the double-leaf fan (4).

8. The twin cylinder engine series generator air duct heat sink structure of claim 3, wherein: An exhaust pipe (10) is arranged between the engine body (2) and the silencer (52) and in communication therebetween.

9. The twin cylinder engine series generator air duct heat sink structure of claim 1, wherein: One side of the motor (3) is provided with a motor side air inlet (11).

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