CN120798510A - Rotary direction variable fan mechanism for vehicle heat dissipation, using method thereof and automobile - Google Patents
Rotary direction variable fan mechanism for vehicle heat dissipation, using method thereof and automobileInfo
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- CN120798510A CN120798510A CN202511139317.8A CN202511139317A CN120798510A CN 120798510 A CN120798510 A CN 120798510A CN 202511139317 A CN202511139317 A CN 202511139317A CN 120798510 A CN120798510 A CN 120798510A
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Abstract
本发明公开了一种车辆散热用旋向可变式风扇机构及其使用方法及汽车，属于车辆散热技术领域，包括主动皮带轮、涨紧轮和从动皮带轮，主动皮带轮、涨紧轮和从动皮带轮通过皮带连接，主动皮带轮同轴连接有主动齿轮，从动皮带轮同轴连接有从动齿轮，从动齿轮的另一侧同轴连接风扇连接盘，主动齿轮和从动齿轮啮合连接；主动皮带轮和主动齿轮之间设有常脱开电磁离合器，从动皮带轮和从动齿轮之间设有常结合电磁离合器；还包括控制模块，控制模块通过同一电信号控制常脱开电磁离合器和常结合电磁离合器共同运作。本发明通过在有限空间内增设传动齿轮结构和电磁离合器，实现正向吹风行使散热功能与反向吹风实现散热模块清洁的一键切换，便于安装使用。
The present invention discloses a variable-rotation fan mechanism for vehicle heat dissipation, a method for using the fan mechanism, and a vehicle, belonging to the field of vehicle heat dissipation technology. The fan mechanism includes a driving pulley, a tensioner pulley, and a driven pulley, wherein the driving pulley, the tensioner pulley, and the driven pulley are connected by a belt, the driving pulley is coaxially connected to a driving gear, the driven pulley is coaxially connected to a driven gear, the other side of the driven gear is coaxially connected to a fan connection plate, and the driving gear and the driven gear are meshed and connected; a normally disengaged electromagnetic clutch is provided between the driving pulley and the driving gear, and a normally engaged electromagnetic clutch is provided between the driven pulley and the driven gear; and the fan mechanism also includes a control module, which controls the normally disengaged electromagnetic clutch and the normally engaged electromagnetic clutch to operate together through the same electrical signal. By adding a transmission gear structure and an electromagnetic clutch within a limited space, the present invention achieves a one-touch switch between forward blowing to perform a heat dissipation function and reverse blowing to clean the heat dissipation module, making it easy to install and use.
Description
Technical Field
The invention relates to the technical field of vehicle heat dissipation, in particular to a rotation direction variable fan mechanism for vehicle heat dissipation, a using method of the rotation direction variable fan mechanism and an automobile.
Background
The vehicle cooling system is crucial to ensuring stable operation of the engine, and particularly in the field of rear commercial buses, the cooling fan is usually driven in one direction by an engine crankshaft through a belt transmission mechanism. However, under the use scene that the wind sand is great, the sediment is easily gathered on the heat dissipation module surface, leads to radiating efficiency to drop, causes the overheated, power restriction of engine, oil consumption increase scheduling problem. The traditional solution is to rely on an external air source to perform reverse blowing cleaning on the radiator, but has the following defects:
The existing radiator fan transmission mechanism is composed of an input belt pulley, a belt and a secondary belt pulley, only power can be transmitted in one direction, the radiator fan is rotationally fixed, only forward airflow can be generated to achieve a radiating function, reverse airflow can not be generated to achieve self-cleaning, a driver is usually required to park a radiator module to clean, external equipment is operated, but the mode is influenced by personnel quality and maintenance consciousness, long-term unclean risks of the radiator module are high, sediment is continuously accumulated, aggravated radiating performance is deteriorated, in a scene of long-time running of most vehicles, after the radiator module is accumulated and overheated due to wind and sand, the driver cannot find the radiator module, parking cleaning cannot be achieved, overheat damage of the radiator module is easily caused, and safety risks are caused.
In the heat dissipation system in the field of the rear commercial bus, the installation space is narrow, and the cost problem needs to be considered generally, although some schemes for realizing the reverse rotation of the fan through an additional transmission mechanism exist in the prior art, such as adding an independent reverse rotation belt pulley or a hydraulic driving system to realize the reverse rotation cleaning of the heat dissipation fan to replace manual cleaning, but some problems still exist in the schemes:
The existing structure for driving the fan to reversely rotate is complex, the occupied space of a plurality of sets of transmission systems is large, an independent power supply is required to supply energy for the fan reverse rotation driving mechanism, and the fan reverse rotation driving mechanism is difficult to adapt to the compact engine cabin layout, and particularly, the rear commercial bus radiating system module is compact in installation space, the complex fan reverse rotation driving structure is difficult to install, pumps, valves and pipelines are required to be added to the hydraulic driving mechanism, so that the cost is high, and meanwhile, the fan reverse rotation driving mechanism is easy to damage in a severe use environment; in addition, the current operation of driving the cooling fan to rotate reversely is complicated, mechanical components are required to be manually switched or complicated sensor control is relied on, one-key simple operation cannot be realized, and a power system of the vehicle cannot be effectively utilized.
Disclosure of Invention
According to the rotary direction variable fan mechanism for vehicle heat dissipation, the using method and the automobile thereof, disclosed by the invention, the fan transmission mechanism of the heat dissipation system is improved by additionally arranging the transmission gear structure and the electromagnetic clutch in a limited space, so that not only can the heat dissipation function be realized by forward blowing, but also one-key switching can be realized, the fan transmission mechanism can realize the change of the rotating direction of the tail end in the operation process to drive the fan to rotate reversely, the heat dissipation module is cleaned by reverse blowing, an independent energy supply module is not required to be additionally arranged, the structure is simple, and the installation and the use are convenient.
The technical scheme of the invention is as follows:
In a first aspect of the invention, a rotary direction variable fan mechanism for vehicle heat dissipation is provided, comprising a driving pulley, a tension pulley and a driven pulley, wherein the driving pulley, the tension pulley and the driven pulley are connected through a belt, the driving pulley is coaxially connected with a driving gear, the driven pulley is coaxially connected with a driven gear, the other side of the driven gear is coaxially connected with a fan connecting disc, the driving gear and the driven gear are in meshed connection, a normally-disengaged electromagnetic clutch is arranged between the driving pulley and the driving gear, a normally-engaged electromagnetic clutch is arranged between the driven pulley and the driven gear, and the control module controls the normally-disengaged electromagnetic clutch and the normally-engaged electromagnetic clutch to operate together through the same electric signal.
In some embodiments of the present invention, the vehicle further comprises a mechanism housing, wherein the driving gear, the driven gear, the normally disengaged electromagnetic clutch and the normally engaged electromagnetic clutch are arranged inside the mechanism housing, a mounting seat is arranged outside the mechanism housing, and the mounting seat is detachably connected to the vehicle body through bolts;
the shaft body of the driving gear is parallel to the shaft body of the driven gear, and bearings are arranged at the connecting positions of the shaft body of the driving gear, the shaft body of the driven gear and the mechanism shell.
In some embodiments of the invention, the drive gear and the driven gear are of uniform diameter.
In some embodiments of the invention, the drive pulley is connected to the engine pulley by a first belt and the fan connection disc is connected to a radiator fan.
In some embodiments of the invention, the tensioner is disposed between a driving pulley and a driven pulley, the tensioner having a smaller diameter than the driving pulley and the driven pulley.
In some embodiments of the invention, the driving pulley is provided with a plurality of driving pulley annular grooves, and a first belt is arranged in each driving pulley groove and connected with the engine pulley;
The tensioner is provided with a plurality of tensioner annular grooves, the driven belt pulley is provided with a plurality of driven belt pulley annular grooves, and belts are arranged in the driving belt pulley annular grooves, the tensioner annular grooves and the driven belt pulley annular grooves for connection.
In some embodiments of the present invention, the control module is communicatively connected to a temperature detection unit, the temperature detection unit is configured to detect temperature information of the vehicle heat dissipation module, and the control module controls the normally disengaged electromagnetic clutch and the normally engaged electromagnetic clutch to operate together through the same electrical signal according to the temperature information.
In some embodiments of the present invention, the control module is provided with a time relay, the time relay is used for timing the time of the control module controlling the normally disengaged electromagnetic clutch and the normally engaged electromagnetic clutch to obtain timing information, and the control module controls the normally disengaged electromagnetic clutch and the normally engaged electromagnetic clutch to operate together through the same electric signal according to the timing information.
In a second aspect of the present invention, there is provided a method of using a rotary direction variable fan mechanism for vehicle heat dissipation, comprising:
In the running process of the vehicle, the driving belt pulley drives the driven belt pulley to rotate in the same direction through the belt, the driven belt pulley drives the driven gear to rotate in the same direction through the normally combined electromagnetic clutch, the driven gear drives the fan connecting disc to rotate, the positive air flow is output for heat dissipation of the heat dissipation module, and at the moment, the driving gear meshed with the driven gear idles in a disengaging state due to the fact that the normally disengaged electromagnetic clutch is positioned;
When the heat radiation module needs to be cleaned, the control module sends the same electric signal to control the normally combined electromagnetic clutch and the normally disengaged electromagnetic clutch to operate simultaneously, the normally combined electromagnetic clutch is disengaged, the normally disengaged electromagnetic clutch is combined, the driving pulley drives the driving gear to rotate in the same direction through the combined normally disengaged electromagnetic clutch, the driving gear drives the driven gear to rotate reversely, the driven gear drives the fan connecting disc to rotate, reverse airflow is output to clean the heat radiation module in a blowing way, and at the moment, the driven pulley connected with the driving pulley idles in a disengaged state due to the normally combined electromagnetic clutch;
The time relay counts the time for controlling the normally disengaged electromagnetic clutch and the normally engaged electromagnetic clutch to operate by the control module, and after the set time is reached, the control module sends the same electric signal to control the normally engaged electromagnetic clutch and the normally disengaged electromagnetic clutch to recover to a normal working state;
The control module obtains temperature information of the heat radiation module according to the temperature detection unit, and when the temperature information reaches a set value, the control module sends the same electric signal to control the normal combination electromagnetic clutch and the normal disengagement electromagnetic clutch to simultaneously operate so as to reversely blow and clean the heat radiation module, and the heat radiation module is recovered to a normal working state after a set time of cleaning.
In a third aspect of the present invention, there is provided a vehicle employing the above-described rotary direction variable fan mechanism for vehicle heat radiation.
One or more of the technical schemes of the invention has the following beneficial effects:
According to the rotary direction variable fan mechanism for vehicle heat dissipation, the using method of the rotary direction variable fan mechanism and the automobile, provided by the invention, the driving gear and the driven gear which are coaxially connected are arranged for meshed transmission, the normally-disengaged electromagnetic clutch and the normally-engaged electromagnetic clutch are combined, so that the rotary direction switching of the fan in a single transmission chain is realized, the control module synchronously operates the double electromagnetic clutches through the same electric signal, so that the mechanism is switched between a heat dissipation mode for generating forward airflow and a cleaning mode for generating reverse airflow through one key, an independent reverse driving structure is not required to be additionally arranged, the structure is obviously simplified, the occupied space is reduced, the self-cleaning function is realized by utilizing the power of the automobile in the running process of the automobile, and the problem that the heat dissipation is unstable and inconvenient to clean due to sediment accumulation of the heat dissipation module is solved.
Meanwhile, the temperature detection unit monitors the temperature of the heat dissipation module in real time, when sediment accumulation leads to overheat of the heat dissipation module, and when the temperature is detected to exceed a threshold value or the temperature rise is too fast, the control module is automatically triggered to switch to a cleaning mode to realize automatic cleaning of the heat dissipation module, so that overheat failure of the heat dissipation module caused by negligence of a driver is avoided. The time relay limits the working time of the cleaning mode, and after the set time is reached, the control module controls the normally-disengaged electromagnetic clutch and the normally-combined electromagnetic clutch to automatically reset to a heat dissipation mode, and the countdown logic prevents the heat dissipation of the engine 1 from being influenced by long-time reversal and simultaneously avoids the safety risk of forgetting to reset due to manual operation.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a transmission mechanism of a cooling fan capable of rotating only in one direction in the prior art according to embodiment 1 of the present invention;
Fig. 2 is a schematic diagram of the overall structure of the fan mechanism with variable rotation direction according to embodiment 1 of the present invention;
FIG. 3 is a schematic cross-sectional view at A-A in FIG. 2 according to example 1 of the present invention.
In the figure, 1, an engine; 2, an engine belt pulley, 3, a first belt, 4, a unidirectional rotation fan transmission mechanism, 5, an input belt pulley, 6, a second belt, 7, an output belt pulley, 8, a cooling fan, 9, a cooling module, 10, a rotation direction variable fan mechanism, 11, a driving belt pulley, 12, a tensioning wheel, 13, a driven belt pulley, 14, a normally-combined electromagnetic clutch, 15, a normally-disengaged electromagnetic clutch, 16, a driving gear, 17, a driven gear, 18 and a fan connecting disc.
Detailed Description
The invention will be further described with reference to the drawings and examples.
Example 1
In this embodiment, as shown in fig. 1, the engine 1 drives the engine pulley 2 to rotate in a single direction, the first belt 3 is connected with the input pulley 5, the input pulley 5 is connected with the output pulley 7 through the second belt 6 to form a unidirectional rotating fan transmission mechanism 4, and the output pulley 7 is connected with the heat dissipation fan 8 to dissipate heat of the heat dissipation module 9. The rotation direction of the conventional unidirectional rotation fan transmission mechanism 4 is not switchable, and the rotation direction of the cooling fan 8 cannot be changed.
In an exemplary embodiment of the invention, a rotary direction variable fan mechanism 10 for vehicle heat dissipation is provided, which comprises a driving pulley 11, a tension pulley 12 and a driven pulley 13, wherein the driving pulley 11, the tension pulley 12 and the driven pulley 13 are connected through belts, the driving pulley 11 is coaxially connected with a driving gear 16, the driven pulley 13 is coaxially connected with a driven gear 17, the other side of the driven gear 17 is coaxially connected with a fan connecting disc 18, the driving gear 16 and the driven gear 17 are in meshed connection, a normally-disengaged electromagnetic clutch 15 is arranged between the driving pulley 11 and the driving gear 16, a normally-engaged electromagnetic clutch 14 is arranged between the driven pulley 13 and the driven gear 17, and a control module is further provided, and the control module controls the normally-disengaged electromagnetic clutch 15 and the normally-engaged electromagnetic clutch 14 to operate together through the same electric signal.
The driving gear 16 and the driven gear 17 which are coaxially connected are arranged to be in meshed transmission, and the normally-disengaged electromagnetic clutch 15 and the normally-engaged electromagnetic clutch 14 are combined to realize the rotation switching of the fan in a single transmission chain. The control module synchronously operates the double electromagnetic clutches through the same electric signal, so that the mechanism is switched between a heat dissipation mode generating forward airflow and a cleaning mode generating reverse airflow by one key, an independent reverse driving structure is not required to be additionally arranged, the structure is remarkably simplified, the occupied space is reduced, the self-cleaning function is realized by utilizing the power of the vehicle in the running process of the vehicle, and the problem that the heat dissipation is unstable and inconvenient to clean due to sediment accumulation of the heat dissipation module 9 is solved.
In some embodiments of the present invention, the device further comprises a mechanism housing, wherein the driving gear 16, the driven gear 17, the normally-disengaged electromagnetic clutch 15 and the normally-engaged electromagnetic clutch 14 are arranged inside the mechanism housing, a mounting seat is arranged outside the mechanism housing, and the mounting seat is detachably connected to the vehicle body through bolts;
The shaft body of the driving gear 16 and the shaft body of the driven gear 17 are arranged in parallel, and bearings are arranged at the positions where the shaft body of the driving gear 16, the shaft body of the driven gear 17 and the mechanism shell are connected.
Through the arrangement, the mechanism shell encapsulates the driving gear 16, the driven gear 17, the normally-disengaged electromagnetic clutch 15 and the normally-combined electromagnetic clutch 14 in the inside, external sediment and dust invasion are isolated, the service life of the core component is prolonged, the installation seat is arranged outside the shell and is connected with the vehicle body through bolts, modularized quick disassembly, assembly and maintenance and replacement are realized, the driving gear 16 shaft and the driven gear 17 shaft are arranged in parallel, the bearing support is matched, the coaxiality and stability of power transmission are ensured, vibration and eccentric wear risks are reduced, and the mechanism is particularly suitable for a narrow space of a rear commercial bus engine 1 cabin and is convenient to install.
In some embodiments of the invention, the diameters of the driving gear 16 and the driven gear 17 are uniform. The driving gear 16 and the driven gear 17 have the same diameter, so that the input and output rotation speeds are consistent, torque fluctuation caused by speed difference is avoided, the symmetry of the meshing transmission of the driving gear 16 and the driven gear 17 ensures that the air flow strength is equivalent to that of the forward heat dissipation during reverse cleaning, the efficient stripping of sediment on the surface of the heat dissipation module 9 is ensured, in addition, the equal-diameter design simplifies the gear processing technology, and the manufacturing cost is reduced.
In some embodiments of the invention, the driving pulley 11 is connected to the engine pulley 2 by the first belt 3, and the fan connection disc 18 is connected to the radiator fan 8.
So set up, driving pulley 11 passes through first belt 3 lug connection engine pulley 2, multiplexing engine 1 power supply, need not to add independent drive arrangement, make full use of current vehicle driving system, avoid extra energy consumption, fan connection pad 18 and radiator fan 8 rigid connection, ensure positive and negative rotation force zero loss transmission, guarantee the heat dissipation and the instant responsiveness of clean mode switching.
In some embodiments of the present invention, the tensioner 12 is disposed between the driving pulley 11 and the driven pulley 13, and the tensioner 12 has a smaller diameter than the driving pulley 11 and the driven pulley 13.
The diameter of the tension wheel 12 is smaller than that of the driving pulley 11 and the driven pulley 13, so that the tension degree of a belt can be flexibly adjusted in a limited space, the small-size tension wheel 12 reduces rotational inertia, shaking of the belt during high-speed running is reduced, transmission stability is improved, in addition, the tension wheel 12 is arranged between the driving pulley 11 and the driven pulley 13, the belt wrap angle is optimized, slipping is prevented, and transmission reliability is maintained particularly during fan reversing.
In some embodiments of the present invention, the driving pulley 11 is provided with a plurality of driving pulley 11 annular grooves, and the first belt 3 is arranged in the driving pulley 11 grooves and connected with the engine pulley 2;
the tensioner 12 is provided with a plurality of tensioner 12 annular grooves, the driven pulley 13 is provided with a plurality of driven pulley 13 annular grooves, and belts are arranged in the driving pulley 11 annular grooves, the tensioner 12 annular grooves and the driven pulley 13 annular grooves for connection.
The driving belt pulley 11, the tension pulley 12 and the driven belt pulley 13 are all provided with annular grooves, a plurality of belts are supported for parallel transmission, the single belt load is dispersed by the multi-groove design, the basic function can be maintained even if the single belt fails, the annular grooves are matched with the section shape of the belt, the meshing friction force is enhanced, the belt is prevented from falling off the groove when the belt is reversed at high speed, and the power stability in a cleaning mode is ensured.
In some embodiments of the present invention, the control module is communicatively connected to a temperature detection unit for detecting temperature information of the vehicle heat dissipation module 9, and the control module controls the normally disengaged electromagnetic clutch 15 and the normally engaged electromagnetic clutch 14 to operate together through the same electric signal according to the temperature information.
The temperature detection unit monitors the temperature of the heat dissipation module 9 in real time, when sediment accumulation leads to overheat of the heat dissipation module 9, and when the temperature is detected to exceed a threshold value or the temperature rise is too fast, the automatic triggering control module is switched to a cleaning mode to realize automatic cleaning of the heat dissipation module 9, so that overheat failure of the heat dissipation module 9 caused by negligence of a driver is avoided.
In some embodiments of the present invention, the control module is provided with a time relay for counting the time for which the control module controls the normally disengaged electromagnetic clutch 15 and the normally engaged electromagnetic clutch 14 to operate, so as to obtain timing information, and the control module controls the normally disengaged electromagnetic clutch 15 and the normally engaged electromagnetic clutch 14 to operate together through the same electric signal according to the timing information.
The time relay limits the working time of the cleaning mode, and after the set time is reached, the control module controls the normally-disengaged electromagnetic clutch 15 and the normally-combined electromagnetic clutch 14 to automatically reset to the heat dissipation mode, and the countdown logic prevents the heat dissipation of the engine 1 from being influenced by long-time reverse rotation and simultaneously avoids the safety risk of forgetting to reset due to manual operation.
In a second aspect of the present invention, there is provided a method of using a rotary direction variable fan mechanism 10 for vehicle heat dissipation, comprising:
In the running process of the vehicle, the driving belt pulley 11 drives the driven belt pulley 13 to rotate in the same direction through a belt, the driven belt pulley 13 drives the driven gear 17 to rotate in the same direction through the normally combined electromagnetic clutch 14, the driven gear 17 drives the fan connecting disc 18 to rotate, the output positive air flow is the heat dissipation module 9 to dissipate heat, and at the moment, the driving gear 16 meshed with the driven gear 17 idles in a disengaging state due to the fact that the normally disengaged electromagnetic clutch 15 is positioned;
When the heat radiation module 9 needs to be cleaned, the control module sends the same electric signal to control the normally combined electromagnetic clutch 14 and the normally disengaged electromagnetic clutch 15 to operate simultaneously, the normally combined electromagnetic clutch 14 is disengaged, the normally disengaged electromagnetic clutch 15 is combined, the driving pulley 11 drives the driving gear 16 to rotate in the same direction through the combined normally disengaged electromagnetic clutch 15, the driving gear 16 drives the driven gear 17 to rotate reversely, the driven gear 17 drives the fan connecting disc 18 to rotate, reverse airflow is output to blow and clean the heat radiation module 9, and at the moment, the driven pulley 13 connected with the driving pulley 11 idles in a disengaged state due to the fact that the normally combined electromagnetic clutch 14 is positioned;
the time relay counts the time for the control module to control the normally disengaged electromagnetic clutch 15 and the normally engaged electromagnetic clutch 14 to operate, and after the set time is reached, the control module sends the same electric signal to control the normally engaged electromagnetic clutch 14 and the normally disengaged electromagnetic clutch 15 to restore to the normal working state;
The control module obtains the temperature information of the heat radiation module 9 according to the temperature detection unit, when the temperature information reaches a set value, the control module sends the same electric signal to control the normal combination electromagnetic clutch 14 and the normal disengagement electromagnetic clutch 15 to simultaneously operate so as to reversely blow and clean the heat radiation module 9, and the normal working state is recovered after the set time of cleaning.
In a third aspect of the present invention, there is provided a vehicle employing the above-described rotary direction variable fan mechanism 10 for vehicle heat radiation.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (10)
1. A rotary direction variable fan mechanism for vehicle heat dissipation is characterized by comprising a driving belt pulley, a tension pulley and a driven belt pulley, wherein the driving belt pulley, the tension pulley and the driven belt pulley are connected through a belt, the driving belt pulley is coaxially connected with a driving gear, the driven belt pulley is coaxially connected with a driven gear, the other side of the driven gear is coaxially connected with a fan connecting disc, the driving gear and the driven gear are in meshed connection, a normally-disengaged electromagnetic clutch is arranged between the driving belt pulley and the driving gear, a normally-engaged electromagnetic clutch is arranged between the driven belt pulley and the driven gear, and the rotary direction variable fan mechanism further comprises a control module which controls the normally-disengaged electromagnetic clutch and the normally-engaged electromagnetic clutch to operate together through the same electric signal.
2. The rotary direction variable fan mechanism for vehicle heat radiation as claimed in claim 1, further comprising a mechanism housing, wherein the driving gear, the driven gear, the normally disengaged electromagnetic clutch and the normally engaged electromagnetic clutch are arranged inside the mechanism housing, a mounting seat is arranged outside the mechanism housing, and the mounting seat is detachably connected to a vehicle body through bolts;
the shaft body of the driving gear is parallel to the shaft body of the driven gear, and bearings are arranged at the connecting positions of the shaft body of the driving gear, the shaft body of the driven gear and the mechanism shell.
3. A vehicle heat dissipating rotary variable fan mechanism as set forth in claim 1, wherein said drive gear and said driven gear are of uniform diameter.
4. The rotary direction variable fan mechanism for vehicle heat radiation of claim 1, wherein the driving pulley is connected with the engine pulley by a first belt, and the fan connection pad is connected with the heat radiation fan.
5. The rotary direction variable fan mechanism for vehicle heat radiation of claim 1, wherein the tension roller is disposed between the driving pulley and the driven pulley, and the diameter of the tension roller is smaller than the driving pulley and the driven pulley.
6. The rotary direction variable fan mechanism for vehicle heat dissipation according to claim 1, wherein the driving pulley is provided with a plurality of driving pulley annular grooves, and a first belt is arranged in each driving pulley groove and connected with the engine pulley;
The tensioner is provided with a plurality of tensioner annular grooves, the driven belt pulley is provided with a plurality of driven belt pulley annular grooves, and belts are arranged in the driving belt pulley annular grooves, the tensioner annular grooves and the driven belt pulley annular grooves for connection.
7. The rotary direction variable fan mechanism for vehicle heat radiation as claimed in claim 1, wherein the control module is communicatively connected with a temperature detection unit for detecting temperature information of the vehicle heat radiation module, and the control module controls the normally disengaged electromagnetic clutch and the normally engaged electromagnetic clutch to operate together by the same electric signal according to the temperature information.
8. The rotary direction variable fan mechanism for vehicle heat radiation as claimed in claim 1, wherein the control module is provided with a time relay for counting the time for which the control module controls the normally disengaged electromagnetic clutch and the normally engaged electromagnetic clutch to operate, to obtain timing information, and the control module controls the normally disengaged electromagnetic clutch and the normally engaged electromagnetic clutch to operate together by the same electric signal according to the timing information.
9. A method of using a rotary direction variable fan mechanism for vehicle heat dissipation according to any one of claims 1-8, comprising:
In the running process of the vehicle, the driving belt pulley drives the driven belt pulley to rotate in the same direction through the belt, the driven belt pulley drives the driven gear to rotate in the same direction through the normally combined electromagnetic clutch, the driven gear drives the fan connecting disc to rotate, the positive air flow is output for heat dissipation of the heat dissipation module, and at the moment, the driving gear meshed with the driven gear idles in a disengaging state due to the fact that the normally disengaged electromagnetic clutch is positioned;
When the heat radiation module needs to be cleaned, the control module sends the same electric signal to control the normally combined electromagnetic clutch and the normally disengaged electromagnetic clutch to operate simultaneously, the normally combined electromagnetic clutch is disengaged, the normally disengaged electromagnetic clutch is combined, the driving pulley drives the driving gear to rotate in the same direction through the combined normally disengaged electromagnetic clutch, the driving gear drives the driven gear to rotate reversely, the driven gear drives the fan connecting disc to rotate, reverse airflow is output to clean the heat radiation module in a blowing way, and at the moment, the driven pulley connected with the driving pulley idles in a disengaged state due to the normally combined electromagnetic clutch;
The time relay counts the time for controlling the normally disengaged electromagnetic clutch and the normally engaged electromagnetic clutch to operate by the control module, and after the set time is reached, the control module sends the same electric signal to control the normally engaged electromagnetic clutch and the normally disengaged electromagnetic clutch to recover to a normal working state;
The control module obtains temperature information of the heat radiation module according to the temperature detection unit, and when the temperature information reaches a set value, the control module sends the same electric signal to control the normally combined electromagnetic clutch and the normally disengaged electromagnetic clutch to simultaneously operate so as to reversely blow and clean the heat radiation module.
10. A vehicle employing a rotary direction variable fan mechanism for vehicle heat dissipation according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511139317.8A CN120798510A (en) | 2025-08-14 | 2025-08-14 | Rotary direction variable fan mechanism for vehicle heat dissipation, using method thereof and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202511139317.8A CN120798510A (en) | 2025-08-14 | 2025-08-14 | Rotary direction variable fan mechanism for vehicle heat dissipation, using method thereof and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120798510A true CN120798510A (en) | 2025-10-17 |
Family
ID=97308214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202511139317.8A Pending CN120798510A (en) | 2025-08-14 | 2025-08-14 | Rotary direction variable fan mechanism for vehicle heat dissipation, using method thereof and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120798510A (en) |
-
2025
- 2025-08-14 CN CN202511139317.8A patent/CN120798510A/en active Pending
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