Engine cooling circulation mechanism

Abstract

The utility model discloses an engine cooling circulation mechanism, which relates to the technical field of hybrid electric vehicle heat management and comprises a chassis. According to the engine cooling circulation mechanism, a front fan extracts air from the front end of a chassis to cool a radiator water tank in an air cooling mode when a gasoline engine is started, and further cooling liquid in the radiator water tank achieves flowing heat exchange in a pipeline through a water pump arranged in the gasoline engine; according to the gasoline engine, external circulation composed of a circulating pipe and an electronic water pump is additionally arranged on the basis of the internal circulation, so that cooling liquid in a radiator water tank participates in water cooling circulation of a battery pack and a motor, and a front fan or a rear fan is responsible for heat exchange cooling of the cooling liquid; the battery pack and the motor are further subjected to auxiliary cooling of liquid cooling on the basis of traditional air cooling, efficiency is higher, the heat dissipation effect of the whole vehicle is better, and practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of heat management of hybrid vehicles, and specifically relates to an engine cooling circulation mechanism. Background Technique

[0002] As a compromise solution between traditional fuel vehicles and pure electric vehicles, hybrid vehicles have become a new hot spot in the development of new environmentally friendly vehicles at home and abroad.

[0003] Due to the complex internal structure of hybrid vehicles and the presence of multiple power sources and heat sources, the heat management problems existing during their operation are particularly prominent. How to ensure that many key components such as engines, power battery packs, motors, and electronic control systems are always within the optimal working temperature range during operation is the key problem to be solved by heat management technology. When the heat management design is insufficient, it will reduce the overall vehicle operation efficiency, accelerate the aging of components, and even cause vehicle spontaneous combustion accidents.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and an engine cooling circulation mechanism is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide an engine cooling circulation mechanism to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an engine cooling circulation mechanism, including a chassis, an engine cooling component is arranged in front of the chassis, the engine cooling component includes a front axle, a gasoline engine, a front fan, a radiator water tank, a circulation pipe, and an electronic water pump. The front axle is internally provided with a gasoline engine, and a front fan rotates at the front end of the gasoline engine. The gasoline engine is provided with a radiator water tank in front, and the radiator water tank is externally connected with a circulation pipe, and the circulation pipe is communicated with both ends of the electronic water pump.

[0007] Further, when the gasoline engine is in the enabled state, the front fan extracts air from the front end of the chassis to cool the radiator water tank by air cooling.

[0008] Further, the coolant in the radiator water tank realizes flow heat exchange in the pipeline through the built-in water pump of the gasoline engine.

[0009] Further, a battery pack is arranged in the middle of the chassis, and the battery pack is surrounded by the circulation pipe.

[0010] Further, a motor cooling component is arranged at the rear of the chassis, the motor cooling component includes a rear axle, a bracket, a rear fan, and a driven bevel gear. The rear end of the rear axle is fixed with a bracket, and a rear fan is rotatably installed in the middle of the bracket, and the rear fan is coaxially connected with the driven bevel gear.

[0011] Furthermore, the motor cooling assembly further includes a motor and heat dissipation fins. The rear axle is internally provided with a motor, and the heat dissipation fins are wound around the outside of the motor, and the heat dissipation fins are penetrated by a circulation pipe.

[0012] Furthermore, the motor cooling assembly further includes a reduction gear set and a driving cone pulley. One end of the motor is coaxially driven with a reduction gear set, and the reduction gear set is coaxially connected with a driving cone pulley, and the driving cone pulley is meshed and driven with a driven bevel gear.

[0013] Furthermore, when the motor is in an enabled state, the rear fan extracts air from the rear end of the chassis to cool the heat dissipation fins by air cooling.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] 1. When the present utility model is in use, the front fan extracts air from the front end of the chassis to cool the radiator water tank by air cooling when the gasoline engine is in an enabled state. Further, the coolant in the radiator water tank realizes the flow heat exchange in the pipeline through the built-in water pump of the gasoline engine, so as to establish the internal cooling cycle of the gasoline engine. On the basis of the above internal cycle, the present application is additionally provided with an external cycle composed of a circulation pipe and an electronic water pump, so that the coolant in the radiator water tank participates in the water cooling cycle of the battery pack and the motor, and the front fan or the rear fan is responsible for the heat exchange and cooling of the coolant, so that the battery pack and the motor are further assisted by liquid cooling on the basis of traditional air cooling, with higher efficiency and better heat dissipation effect of the whole vehicle.

[0016] 2. When the present utility model is in use, when the motor is enabled, the reduction gear set is meshed and driven with the driven bevel gear through the driving cone pulley, and then drives the rear fan to rotate inside the bracket. The fan extracts air from the rear end of the chassis to cool the heat dissipation fins by air cooling when the motor is in an enabled state, improving the heat dissipation effect of the motor. And in the above technical solution, the circulation pipe spirally penetrates through the heat dissipation fins, and the heat exchange effect of the heat dissipation fins is further improved by the flowing coolant, with stronger applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the device of the present utility model;

[0018] Figure 2 is a schematic diagram of the structure of the engine cooling assembly of the present utility model;

[0019] Figure 3 is a schematic diagram of the structure of the motor cooling assembly of the present utility model.

[0020] In the figure: 1. Chassis; 2. Battery pack; 3. Engine cooling assembly; 301. Front axle; 302. Gasoline engine; 303. Front fan; 304. Radiator water tank; 305. Circulation pipe; 306. Electric water pump; 4. Motor cooling assembly; 401. Rear axle; 402. Bracket; 403. Rear fan; 404. Driven bevel gear; 405. Electric motor; 406. Heat dissipation fins; 407. Reduction gear set; 408. Driving cone pulley. Specific embodiments

[0021] The following further describes in detail the embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] As Figures 1 to 2 shown, an engine cooling circulation mechanism includes a chassis 1, and an engine cooling assembly 3 is disposed in front of the chassis 1. The engine cooling assembly 3 includes a front axle 301, a gasoline engine 302, a front fan 303, a radiator water tank 304, a circulation pipe 305, and an electric water pump 306. The front axle 301 is internally provided with the gasoline engine 302, and the front fan 303 rotates at the front end of the gasoline engine 302. The radiator water tank 304 is disposed in front of the gasoline engine 302, and the radiator water tank 304 is externally connected with the circulation pipe 305, and the circulation pipe 305 communicates with both ends of the electric water pump 306. When the gasoline engine 302 is in operation, the front fan 303 extracts air from the front end of the chassis 1 to cool the radiator water tank 304 by air cooling. The coolant in the radiator water tank 304 realizes flow heat exchange in the pipeline through the built-in water pump of the gasoline engine 302. When using the gasoline engine 302, the front fan 303 extracts air from the front end of the chassis 1 to cool the radiator water tank 304 by air cooling when the gasoline engine 302 is in operation. Further, the coolant in the radiator water tank 304 realizes flow heat exchange in the pipeline through the built-in water pump of the gasoline engine 302, thereby establishing an internal cooling cycle of the gasoline engine 302. On the basis of the above internal cycle, an external cycle composed of the circulation pipe 305 and the electric water pump 306 is added in this application, so that the coolant in the radiator water tank 304 participates in the water cooling cycle of the battery pack 2 and the electric motor 405, and the front fan 303 or the rear fan 403 is responsible for the heat exchange cooling of the coolant, so that the battery pack 2 and the electric motor 405 are further assisted by liquid cooling on the basis of traditional air cooling, with higher efficiency and better overall vehicle heat dissipation effect;

[0023] As Figures 1 to 3As shown in the figure, a battery pack 2 is placed in the middle of the chassis 1, and the periphery of the battery pack 2 is surrounded by a circulation pipe 305. A motor cooling assembly 4 is placed at the rear of the chassis 1. The motor cooling assembly 4 includes a rear axle 401, a bracket 402, a rear fan 403 and a driven bevel gear 404. A bracket 402 is fixed to the rear end of the rear axle 401, and a rear fan 403 is rotatably installed in the middle of the bracket 402. The rear fan 403 is coaxially connected with a driven bevel gear 404. The motor cooling assembly 4 further includes a motor 405 and heat dissipation fins 406. The motor 405 is installed inside the rear axle 401, and heat dissipation fins 406 are arranged around the outside of the motor 405. The circulation pipe 305 passes through the heat dissipation fins 406. The motor cooling assembly 4 further includes a reduction gear set 407 and a driving bevel gear 408. One end of the motor 405 is coaxially connected to drive the reduction gear set 407, and the reduction gear set 407 is coaxially connected with a driving bevel gear 408. The driving bevel gear 408 is meshed with the driven bevel gear 404 for transmission. When the motor 405 is in use, the rear fan 403 extracts air from the rear end of the chassis 1 to cool the heat dissipation fins 406 by air cooling. When the motor 405 is started, the reduction gear set 407 drives the driven bevel gear 404 through the driving bevel gear 408, thereby driving the rear fan 403 to rotate inside the bracket 402. The fan extracts air from the rear end of the chassis 1 to cool the heat dissipation fins 406 by air cooling when the motor 405 is in use, improving the heat dissipation effect of the motor 405. In the above technical solution, the circulation pipe 305 spirally passes through the heat dissipation fins 406, and the heat exchange effect of the heat dissipation fins 406 is further improved by the flowing coolant, with stronger applicability.

[0024] Working principle: When using this engine cooling cycle mechanism, when using the gasoline engine 302, the front fan 303 extracts air from the front end of the chassis 1 to cool the radiator water tank 304 by air cooling in the enabled state of the gasoline engine 302. Further, the coolant in the radiator water tank 304 realizes the flow heat exchange in the pipeline through the built-in water pump of the gasoline engine 302, so as to establish the internal cooling cycle of the gasoline engine 302. On the basis of the above internal cycle, an external cycle composed of a circulation pipe 305 and an electric water pump 306 is added in this application, so that the coolant in the radiator water tank 304 participates in the water cooling cycle of the battery pack 2 and the motor 405, and the front fan 303 or the rear fan 403 is responsible for the heat exchange and cooling of the coolant, so that the battery pack 2 and the motor 405 can further obtain the auxiliary cooling of liquid cooling on the basis of traditional air cooling, with higher efficiency and better heat dissipation effect for the whole vehicle. When the motor 405 is enabled, the reduction gear set 407 meshes and drives through the driving cone pulley 408 to the driven bevel gear 404, and then drives the rear fan 403 to rotate inside the bracket 402. The fan extracts air from the rear end of the chassis 1 to cool the heat dissipation fins 406 by air cooling in the enabled state of the motor 405, improving the heat dissipation effect of the motor 405. And in the above technical solution, the circulation pipe 305 spirally passes through the heat dissipation fins 406, and the heat exchange effect of the heat dissipation fins 406 is further improved by the flowing coolant, with stronger applicability.

[0025] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present invention and its practical application, and to enable those of ordinary skill in the art to understand the present invention so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. An engine cooling circulation mechanism, comprising a chassis (1), characterized in that: The chassis (1) is provided with an engine cooling assembly (3) in front, and the engine cooling assembly (3) comprises a front axle (301), a gasoline engine (302), a front fan (303), a radiator water tank (304), a circulation pipe (305) and an electronic water pump (306); the front axle (301) is provided with a gasoline engine (302) inside, and a front fan (303) is rotatably arranged at the front end of the gasoline engine (302); the gasoline engine (302) is provided with a radiator water tank (304) in front, and the radiator water tank (304) is externally connected with a circulation pipe (305), and the circulation pipe (305) is connected to both ends of the electronic water pump (306).

2. An engine cooling cycle mechanism according to claim 1, characterized in that: When the gasoline engine (302) is in an activated state, the front fan (303) draws air from the front end of the chassis (1) to cool the radiator water tank (304).

3. The engine cooling cycle mechanism according to claim 1, characterized in that: The coolant in the radiator water tank (304) is flowed and heat-exchanged in the pipeline through the built-in water pump of the gasoline engine (302).

4. The engine cooling cycle mechanism according to claim 1, characterized in that: A battery pack (2) is placed in the chassis (1), and the periphery of the battery pack (2) is surrounded by a circulation pipe (305).

5. The engine cooling cycle mechanism according to claim 1, characterized in that: A motor cooling assembly (4) is arranged at the rear of the chassis (1), and the motor cooling assembly (4) comprises a rear axle (401), a bracket (402), a rear fan (403) and a driven umbrella wheel (404); the bracket (402) is fixed at the rear end of the rear axle (401), and the rear fan (403) is rotatably mounted in the middle of the bracket (402), and the rear fan (403) is coaxially connected to the driven umbrella wheel (404).

6. An engine cooling cycle mechanism according to claim 5, characterized in that: The motor cooling assembly (4) further comprises an electric motor (405) and a heat sink fin (406); the rear axle (401) has an electric motor (405) built in, and the electric motor (405) is surrounded by a heat sink fin (406) outside, and the heat sink fin (406) is passed through by a circulation pipe (305).

7. An engine cooling cycle mechanism according to claim 6, characterized in that: The motor cooling assembly (4) further comprises a reduction gear set (407) and a transmission bevel wheel (408); one end of the motor (405) is coaxially driven with the reduction gear set (407); the reduction gear set (407) is coaxially connected with the transmission bevel wheel (408); and the transmission bevel wheel (408) is meshed with the driven bevel wheel (404) for transmission.

8. An engine cooling cycle mechanism according to claim 7, characterized in that: When the motor (405) is in an activated state, the rear fan (403) draws air from the rear end of the chassis (1) to cool the heat sink fins (406).

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