Electric drive integrated type engine fan structure

Abstract

The utility model discloses an electric drive integrated type engine fan structure which comprises an engine, a fan motor, a fan shaft, an electromagnetic clutch and a fan, the fan motor is installed on a cylinder body of the engine, the fan shaft is connected with an output shaft of the fan motor, the electromagnetic clutch is installed on the fan shaft, and the fan is connected with the electromagnetic clutch. A crankshaft of the engine is connected with the electromagnetic clutch in a matched mode, and the fan is installed at the left end of the fan shaft. The utility model solves the problems that the engine stops running and the fan also stops rotating after the existing hybrid electric vehicle is parked and stalled, the power battery pack cannot be cooled continuously, and the performance and the service life of the power battery pack are influenced by over-high temperature.

Description

Technical Field

[0001] The utility model relates to the field of engines, in particular to an electric drive integrated engine fan structure. Background Art

[0002] In existing hybrid vehicles, the engine serves as a direct power output to drive the wheels. The excess energy is used to drive the generator to generate electricity or directly serve as the generator power source to generate electricity and store energy to power the drive motor. During the operation of the vehicle, the power battery pack will continuously charge and discharge. In particular, when a tractor is running for a long time, the temperature of the power battery pack will rise and it needs to be cooled. The existing power battery pack condenser is arranged in front of the engine condenser and dissipates heat through the engine fan. When the car is parked and turned off, the engine stops running and the fan stops moving. The power battery pack cannot continue to cool down. The power battery pack rises and cannot be maintained in the appropriate temperature range of the battery. Frequently causing the power battery pack temperature to be too high will affect its performance and service life.

[0003] The disclosure of the above background technology content is only used to assist in understanding the utility model concept and technical solution of the utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of this application. Utility Model Content

[0004] The purpose of the utility model is to provide an electric drive integrated engine fan structure to solve the problem that after the existing hybrid vehicle is parked and turned off, the engine stops running and the fan stops rotating, the power battery pack cannot continue to cool down, and the power battery pack temperature is too high, affecting its performance and service life.

[0005] In order to achieve the above objectives, the technical solutions adopted by this utility model are as follows:

[0006] An electric drive integrated engine fan structure is characterized in that it includes an engine, a fan motor, a fan shaft, an electromagnetic clutch and a fan, the fan motor is mounted on the cylinder body of the engine, the fan shaft is connected to the output shaft of the fan motor, the electromagnetic clutch is mounted on the fan shaft, the crankshaft of the engine is cooperatively connected to the electromagnetic clutch, and the fan is mounted on the left end of the fan shaft.

[0007] Furthermore, an additional pulley is provided on the crankshaft of the engine, and a first pulley is provided on the electromagnetic clutch; the crankshaft of the engine and the electromagnetic clutch are connected via a belt drive.

[0008] Furthermore, the fan shaft is fixedly connected to the output shaft of the fan motor via a flange using bolts.

[0009] Furthermore, the fan shaft and the fan are fixedly connected by bolts via a flange.

[0010] Furthermore, the fan motor and the electromagnetic clutch are controlled by an ECU of the engine.

[0011] Compared with the prior art, the advantages and beneficial effects of the present invention are:

[0012] The utility model integrates the fan motor and the fan shaft and installs them on the cylinder block at the front end of the engine. At the same time, a battery clutch is also provided on the fan shaft. When the engine is running, the additional pulley on the crankshaft drives the first pulley through the belt, and the electromagnetic clutch is engaged to drive the fan shaft to drive the fan to rotate and suck air, thereby continuously cooling the engine and the power battery pack. At this time, the motor will be driven to idle. When the vehicle stops and the engine is shut down, the power battery pack still needs to be cooled. The electromagnetic clutch is disengaged and will not drive the crankshaft when it is not connected to the fan shaft. The fan is directly driven by the fan motor to rotate and suck air to continuously cool the power battery pack, so that the battery pack is kept in a suitable temperature range, thereby improving the performance and life of the battery pack. This solves the problem that after the engine of the existing hybrid vehicle stops running and the fan stops rotating, the power battery pack cannot continue to cool down, causing the power battery pack temperature to be too high, affecting the performance and service life of the power battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the present utility model. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below in conjunction with specific embodiments. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.

[0015] like Figure 1As shown, an electric drive integrated engine fan structure is characterized in that it includes an engine 1, a fan motor 2, a fan shaft 3, an electromagnetic clutch 4 and a fan 5. The fan motor 2 is installed on the cylinder body of the engine 1 to play a supporting and driving role. The fan shaft 3 is connected to the output shaft of the fan motor 2, and the fan shaft 3 and the output shaft of the fan motor 2 are fixedly connected by bolts through a flange to drive the fan shaft 3 to rotate. The electromagnetic clutch 4 is installed on the fan shaft 3, and the crankshaft 6 of the engine 1 is cooperated with the electromagnetic clutch 4. An additional pulley 7 is provided on the crankshaft 6 of the engine 1, and a first pulley 8 is provided on the electromagnetic clutch 4. The crankshaft 6 of the engine 1 is connected to the electromagnetic clutch 4 by belt drive. The fan 5 is installed at the left end of the fan shaft 3, and the fan shaft 3 and the fan 5 are fixedly connected by bolts through a flange; the fan motor 2 and the electromagnetic clutch 4 are controlled by the ECU of the engine 1.

[0016] The principle of this utility model is:

[0017] When the engine is running, the additional pulley 7 on the crankshaft 6 drives the first pulley 8 through a belt, and the electromagnetic clutch 4 is engaged to drive the fan shaft 3 to rotate, thereby driving the fan 5 to suck air to continuously cool the engine and battery pack.

[0018] When the vehicle is stopped and engine 1 is off, the battery pack still requires cooling. Fan 5, directly driven by fan motor 2, continuously cools the battery pack by drawing air, keeping it within a suitable temperature range and improving its performance and lifespan. In this operating condition, electromagnetic clutch 4 is disengaged, preventing crankshaft 6 from rotating.

[0019] The above content is a further detailed description of the present invention in conjunction with specific / preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, they can make several substitutions or modifications to the described embodiments without departing from the concept of the present invention, and these substitutions or modifications should be considered to fall within the scope of protection of the present invention.

Claims

1. An electric drive integrated engine fan structure, characterized in that: It includes an engine, a fan motor, a fan shaft, an electromagnetic clutch and a fan, wherein the fan motor is installed on the cylinder body of the engine, the fan shaft is connected to the output shaft of the fan motor, the electromagnetic clutch is installed on the fan shaft, the crankshaft of the engine is cooperatively connected to the electromagnetic clutch, and the fan is installed at the left end of the fan shaft.

2. The electric drive integrated engine fan structure according to claim 1, characterized in that: An additional pulley is provided on the crankshaft of the engine, and a first pulley is provided on the electromagnetic clutch; the crankshaft of the engine and the electromagnetic clutch are connected by belt transmission.

3. The electric drive integrated engine fan structure according to claim 1, characterized in that: The fan shaft is fixedly connected to the output shaft of the fan motor by bolts via a flange.

4. The electric drive integrated engine fan structure according to claim 1, characterized in that: The fan shaft and the fan are fixedly connected by bolts via a flange.

5. The electric drive integrated engine fan structure according to claim 1, characterized in that: The fan motor and electromagnetic clutch are controlled by the engine's ECU.

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