Split type electric control silicon oil fan structure
The split-type design of the electrically controlled silicone oil fan structure solves the problems of high development cost and long development cycle of existing electrically controlled silicone oil fans, enables rapid adaptation to different air volume requirements, reduces development costs and maintenance expenses, and ensures normal operation of the fan in case of failure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI NEW POWER AUTOMOTIVE TECH CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-09
AI Technical Summary
Existing electronically controlled silicone oil fans have high development costs and long development cycles during vehicle matching, requiring repeated bench and vehicle calibration, and cannot quickly adapt to the diverse airflow requirements of different OEMs.
It adopts a split-type electronically controlled silicone oil fan structure, with the fan blades and electronically controlled silicone oil clutch being designed separately. The fan blades can be flexibly combined with different specifications, and the electronically controlled silicone oil clutch can be matched with a variety of blades after the initial calibration, without the need for repeated calibration.
Significantly reduce development costs, shorten matching cycles, improve application efficiency, ensure that fans can still operate normally in the event of a failure, reduce maintenance costs, and enhance market competitiveness.
Smart Images

Figure CN224339063U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts design technology, and in particular to the structure of a split-type electronically controlled silicone oil fan. Background Technology
[0002] In the commercial and engineering vehicle sector, the requirements for fuel efficiency and noise reduction in operating vehicles are becoming increasingly stringent. Electronically controlled silicone oil fans, as key fuel-saving and noise-reducing components, are gradually becoming more common in engine configurations. However, existing electronically controlled silicone oil fans face numerous challenges when integrated into vehicle systems. Typically, their application and integration process requires both bench testing and vehicle development phases to achieve the desired fuel-saving and noise-reduction effects.
[0003] Specifically, the initial development process requires bench calibration to establish the basic MAP calibration for fan control, ensuring precise synchronous response of the silicone oil clutch's primary and secondary plates. Subsequent in-depth vehicle calibration is also necessary to optimize fan cooling performance. Since current electronically controlled silicone oil fans are mostly supplied to OEMs or engine manufacturers as integrated components, this means that the above calibration and verification process must be repeated before each fan is put into use, significantly extending the matching cycle and increasing development costs. Therefore, the traditional electronically controlled silicone oil fan structure has significant limitations in terms of development cost and matching cycle, urgently requiring an innovative electronically controlled silicone oil fan structure to achieve the goals of reducing development costs and shortening the matching cycle. Utility Model Content
[0004] The purpose of this invention is to provide an electronically controlled silicone oil fan structure with low development cost and short matching cycle, which facilitates the rapid application of electronically controlled silicone oil fans in vehicles.
[0005] To achieve the above objectives, the present invention provides a split-type electronically controlled silicone oil fan structure, comprising an engine, a fan bearing housing, an electronically controlled silicone oil clutch, and fan blades connected in sequence. The electronically controlled silicone oil clutch includes a drive disc for indirectly connecting the engine's power output shaft and a driven disc for connecting the fan blades. Power is transmitted between the drive disc and the driven disc through a working medium, forming a split structure.
[0006] Preferably, a connecting bracket may be connected between the driving plate and the driven plate, the connecting bracket being used to achieve mechanical connection between the driving plate and the driven plate in the event of a failure of the electronically controlled silicone oil clutch.
[0007] Preferably, the driving plate and the driven plate are provided with mounting holes, so that when the electronically controlled silicone oil clutch fails, the driving plate and the driven plate can be fixedly connected by the connecting bracket for direct drive emergency.
[0008] Preferably, the fan bearing housing is fixed to the engine, the electronically controlled silicone oil clutch is fixed to the fan bearing housing, and the fan blades are fixed to the driven plate of the electronically controlled silicone oil clutch.
[0009] Preferably, the fan blades and the electronically controlled silicone oil clutch are supplied as separate parts, assembled at the engine factory, and can be replaced separately during maintenance.
[0010] Preferably, the fan blades are available in various specifications to meet different assembly requirements, and the fan blades of different specifications can be directly matched with the electronically controlled silicone oil clutch.
[0011] Preferably, the fan blades and the electronically controlled silicone oil clutch can be supplied by the same or different suppliers, and the replacement of the fan blades does not affect the calibration status of the electronically controlled silicone oil clutch.
[0012] Compared with the prior art, the advantages of this utility model's split-type electrically controlled silicone oil fan structure are as follows:
[0013] 1) The electronically controlled silicone oil clutch and fan blades adopt a separate design, which can be freely combined with different specifications. On the one hand, this design greatly expands the application range of the product and can accurately match the diverse air volume requirements of different OEMs; on the other hand, after the initial adaptation, the same electronically controlled silicone oil clutch can quickly become compatible with other specifications of fan blades without the need for additional adaptation solutions, significantly improving matching efficiency.
[0014] 2) Once the electronically controlled silicone oil clutch has been calibrated on the test bench and in the vehicle, the calibration process does not need to be repeated when matching it with different fan blades. This significantly reduces R&D costs, shortens the development cycle, and enables the product to expand to various application scenarios at a faster pace and with lower investment, thereby enhancing market competitiveness.
[0015] 3) The fault-prevention connection structure between the electronically controlled silicone oil clutch and the fan blades effectively improves the system's reliability. When the electronically controlled silicone oil clutch fails, this structure can quickly switch to direct drive mode, ensuring the fan continues to operate, maintaining the basic function of the vehicle's cooling system, reducing the risk of engine overheating due to fan failure, and ensuring driving safety.
[0016] 4) The split structure offers significant advantages in after-sales service. During market repair and replacement, the electronically controlled silicone oil clutch and fan blades can be disassembled and installed separately. Repair personnel do not need to replace the entire fan assembly, reducing replacement time and repair workload, thereby lowering user repair costs and improving repair efficiency and user experience. Attached Figure Description
[0017] Figure 1 This is a front view of a split-type electrically controlled silicone oil fan structure according to this utility model;
[0018] Figure 2 This is a side view of a split-type electrically controlled silicone oil fan structure according to the present invention;
[0019] Figure 3 This is a partial view of a split-type electrically controlled silicone oil fan structure according to the present invention.
[0020] Reference numerals: 1. Engine; 2. Fan bearing housing; 3. Fan blade; 4. Electronically controlled silicone oil clutch; 5. Driven disc; 6. Driven disc; 7. Connecting bracket. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] This utility model relates to a split-type electronically controlled silicone oil fan structure, which mainly consists of an engine 1, a fan bearing housing 2, an electronically controlled silicone oil clutch 4, and fan blades 3, with each component connected in sequence. The electronically controlled silicone oil clutch 4 includes a driving disc 5 and a driven disc 6, with a connecting bracket 7 positioned between them.
[0023] Engine 1 serves as the core power source in the entire structure, with its output shaft connected to the subsequent fan assembly, thus providing the power required for the operation of the entire fan system. The fan bearing housing 2 is fixedly mounted on engine 1, providing a stable mounting base for the electronically controlled silicone oil clutch 4 and ensuring the stability of the entire fan system during operation, preventing loosening or damage to components due to vibration or other factors. The electronically controlled silicone oil clutch 4 is the key component controlling whether the fan blades 3 participate in operation. The driving disc 5 is connected to the power output section of engine 1, while the driven disc 6 is fixedly connected to the fan blades 3. During normal operation, the driving disc 5 rotates under the drive of engine 1, transmitting power through the working medium inside the electronically controlled silicone oil clutch 4, causing the driven disc 6 to drive the fan blades 3 to rotate, thereby achieving the cooling function.
[0024] The fan blades 3 and the electronically controlled silicone oil clutch 4 are supplied as separate parts, allowing for flexible assembly at the engine plant and facilitating individual replacement during market repairs. The fan blades 3 are available in various specifications to meet different assembly requirements, and different specifications of fan blades 3 can be directly matched with the electronically controlled silicone oil clutch 4 to satisfy diverse cooling parameter requirements. Once the electronically controlled silicone oil clutch 4 has been calibrated on the bench and in the vehicle, it can be matched with other specifications of fan blades 3 without repeated development, greatly improving application matching efficiency.
[0025] Mounting holes are provided on both the driving plate 5 and the driven plate 6 of the electronically controlled silicone oil clutch 4. When the electronically controlled silicone oil clutch 4 fails and cannot drive the fan blades 3 normally, the driving plate 5 and the driven plate 6 can be fixedly connected by the connecting bracket 7 to realize the direct drive emergency function of the fan, ensuring that the vehicle can still maintain basic cooling performance in emergency situations and ensuring driving safety.
[0026] This utility model's split-type electrically controlled silicone oil fan structure features a simple layout, convenient assembly, and relatively low component development costs, making it suitable for a wide range of applications. It solves the problem of different OEMs and varying airflow requirements, effectively reducing maintenance costs.
[0027] In the specific implementation process, the fan bearing housing 2 is first fixed to the engine 1. Then, the electronically controlled silicone oil clutch 4 is installed on the fan bearing housing 2. Finally, the fan blades 3 are assembled onto the driven plate 6 of the electronically controlled silicone oil clutch 4. The electronically controlled silicone oil clutch 4 and the fan blades 3 are separate structures, allowing for supply to the OEM from the same or different suppliers. Then, bench calibration and vehicle calibration are performed on this model of electronically controlled silicone oil clutch 4 to complete the development of the silicone oil clutch. When expanding its application to other vehicle models, only the fan blades 3 need to be replaced, eliminating the need for further bench calibration and vehicle calibration, thereby shortening the application cycle and reducing development costs. Furthermore, when the electronically controlled silicone oil clutch 4 malfunctions and cannot drive the fan, the fan can be directly driven by installing the connecting bracket 7 between the driven plate 6 and the driving plate 5, meeting emergency needs.
[0028] The fan blades 3 and the electronically controlled silicone oil clutch 4 can be supplied by the same or different suppliers, and the fan blades 3 are available in various specifications to meet the different airflow requirements of OEMs. The same electronically controlled silicone oil clutch 4 can be matched with different specifications of fan blades 3, eliminating the need for repeated bench calibration development and vehicle calibration. This split structure design makes the supply of fan blades 3 and electronically controlled silicone oil clutch 4 more flexible, greatly reduces development costs, shortens the application cycle, and makes it more convenient to replace fan parts.
[0029] When selecting an electronically controlled silicone oil fan for engine 1, the fan component supplier needs to determine the specific electronically controlled silicone oil clutch 4 and fan blade 3 to be used, and then transport the parts separately to the engine 1 plant for assembly. On the engine 1 production line, the fan bearing housing 2 is first fixed to engine 1, and then the fan blade 3 is fixed to the driven plate 6 of the electronically controlled silicone oil clutch 4. Afterwards, engine 1 bench calibration is performed to calibrate the control strategy of the silicone oil clutch 4. Finally, the fan cooling capacity is verified on the entire vehicle to lock in the state of the electronically controlled silicone oil clutch 4. When other models need to change the fan specifications, only the specifications of the fan blade 3 need to be changed; the above calibration and development work does not need to be repeated. If the electronically controlled silicone oil clutch 4 malfunctions in the market, a connecting bracket 7 between the driving plate 5 and the driven plate 6 can be connected to achieve direct fan drive. This also allows for separate replacement of the fan blade 3 during maintenance, reducing user maintenance costs. Once the initial development of this electronically controlled silicone oil fan is completed, its split design eliminates the need for re-testing and calibration during subsequent application expansion phases. This not only reduces development costs and shortens the matching application cycle, but also makes market maintenance and replacement convenient and reduces user maintenance costs.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A split-type electrically controlled silicone oil fan structure, characterized in that, The device includes an engine (1), a fan bearing housing (2), an electronically controlled silicone oil clutch (4), and a fan blade (3) connected in sequence. The electronically controlled silicone oil clutch (4) includes a drive disc (5) for indirectly connecting the power output shaft of the engine (1) and a driven disc (6) for connecting the fan blade (3). The drive disc (5) and the driven disc (6) transmit power through a working medium, forming a split structure.
2. The split-type electrically controlled silicone oil fan structure according to claim 1, characterized in that, A connecting bracket (7) may be connected between the driving disc (5) and the driven disc (6). The connecting bracket (7) is used to achieve mechanical connection between the driving disc (5) and the driven disc (6) when the electronically controlled silicone oil clutch (4) fails.
3. The structure of a split-type electrically controlled silicone oil fan according to claim 2, characterized in that, The driving disc (5) and the driven disc (6) are provided with mounting holes. When the electronically controlled silicone oil clutch (4) fails, the driving disc (5) and the driven disc (6) can be fixedly connected by the connecting bracket (7) for direct drive emergency.
4. The split-type electrically controlled silicone oil fan structure according to claim 3, characterized in that, The fan bearing housing (2) is fixed on the engine (1), the electronically controlled silicone oil clutch (4) is fixed on the fan bearing housing (2), and the fan blade (3) is fixed on the driven plate (6) of the electronically controlled silicone oil clutch (4).
5. The structure of a split-type electrically controlled silicone oil fan according to claim 1, characterized in that, The fan blades (3) and the electronically controlled silicone oil clutch (4) are supplied as separate parts and are assembled at the engine (1) plant, and can be replaced separately during maintenance.
6. The structure of a split-type electrically controlled silicone oil fan according to claim 1, characterized in that, The fan blades (3) have various specifications to adapt to different assembly requirements, and the fan blades (3) of different specifications can be directly matched with the electronically controlled silicone oil clutch (4).
7. The structure of a split-type electrically controlled silicone oil fan according to claim 1, characterized in that, The fan blade (3) and the electronically controlled silicone oil clutch (4) may be supplied by the same or different suppliers, and the replacement of the fan blade (3) does not affect the calibration status of the electronically controlled silicone oil clutch (4).