CN219081690U

CN219081690U - Electric control fan of air-cooled engine

Info

Publication number: CN219081690U
Application number: CN202223148678.3U
Authority: CN
Inventors: 侯宝军; 李元帝; 李伟; 吴江涛; 陆洋; 王星; 王莎; 张召
Original assignee: Shaanxi North Dynamic Co ltd
Current assignee: Shaanxi North Dynamic Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-05-26
Anticipated expiration: 2032-11-24

Abstract

The application discloses an electric control fan of an air-cooled engine, and relates to the technical field of cooling of air-cooled engines. The electric control fan of the air-cooled engine comprises a cylinder body, a stationary blade wheel assembly, an electric control silicone oil clutch, a coupler and a movable blade wheel. The inside of the cylinder body is sequentially provided with a stationary blade wheel assembly, an electric control silicone oil clutch and a movable blade wheel along the axial direction; the coupling is positioned in the cylinder body, one end of the coupling is connected with an output shaft of the engine, and the other end of the coupling is positioned in the electrically-controlled silicone oil clutch and used for driving the input end of the electrically-controlled silicone oil clutch to rotate; the movable impeller is arranged on the electric control silicone oil clutch, and the movable impeller is linked with the output end of the electric control silicone oil clutch. The electronic control silicone oil clutch controls the rotating speed of the brake impeller according to the information provided by the temperature sensors at all parts of the engine, so that more accurate and rapid response can be made. Therefore, the electric control fan of the air-cooled engine can accurately control the rotating speed of the movable impeller, the response efficiency is high, and the refrigerating effect is guaranteed.

Description

Electric control fan of air-cooled engine

Technical Field

The application relates to the technical field of air-cooled engine cooling, in particular to an electric control fan of an air-cooled engine.

Background

During the running process of the vehicle, the fan is in a high-speed running state, and consumes a part of engine power to generate energy efficiency. The clutch is used as a connector between the engine and the fan, and the energy consumption of the fan is adjusted by controlling the running rotating speed and the running time of the fan.

The air-cooled engine directly uses air as cooling medium, and the whole cooling system comprises a fan, a wind shield, a cylinder sleeve, cooling fins on a cylinder cover casting, an oil-cooled piston device, a thermostat, a temperature alarm device and the like. Cooling air is pressed into a wind pressure chamber surrounded by a cylinder cooling fin, an intercooler, an engine oil radiator, a wind shield and the like from a fan at the front end of the engine, so that certain cooling air pressure is formed, and the cooling air flow required by normal operation of the whole air-cooled engine is ensured to be sufficient. The air-cooled engine can generate a large amount of heat in the working process, and the engine body is cooled completely by virtue of strong air flow generated by the fan. The fan is used as an important refrigerating device, and when the engine works at high strength, the fan needs to act in time and the refrigerating effect is ensured.

At present, the cooling fan of the air-cooled engine senses the air inlet temperature at the front end of the fan by means of a thermostat, the rotating speed of the fan is regulated by controlling the flow of engine oil, the rotating speed of the fan cannot be controlled according to information provided by temperature sensors at all parts of the engine, the situation that the sensitivity of the cooling fan of the air-cooled engine is insensitive can occur, the response efficiency is low, and the fuel consumption is large.

Disclosure of Invention

According to the electronic control fan of the air-cooled engine, the technical problem that the response efficiency of the cooling fan of the air-cooled engine is low in the prior art is solved.

The embodiment of the utility model provides an electric control fan of an air-cooled engine, which comprises a cylinder body, a stationary blade wheel assembly, an electric control silicone oil clutch, a coupler and a movable impeller; the static blade wheel assembly, the electrically controlled silicone oil clutch and the movable blade wheel are sequentially arranged in the cylinder body along the axial direction; the coupling is positioned in the cylinder, one end of the coupling is connected with an output shaft of the engine, and the other end of the coupling is positioned in the electrically-controlled silicone oil clutch and used for driving the input end of the electrically-controlled silicone oil clutch to rotate; the movable impeller is arranged on the electric control silicone oil clutch, and the movable impeller is linked with the output end of the electric control silicone oil clutch.

In one possible implementation, the electrically controlled silicone oil clutch includes a front cover, an active disc, a valve plate, a rear cover, and a solenoid; the front cover is sleeved at the end part of the coupler, which is far away from the output shaft of the engine, and a containing space is formed between the front cover and the rear cover; the rear cover is connected with the movable impeller to drive the movable impeller to rotate; the driving disc is positioned in the accommodating space and forms a working cavity, an oil storage cavity and a flow channel with the rear cover; one end of the valve plate is arranged on the driving disc, the other end of the valve plate is far away from the driving disc due to elasticity, an oil outlet is formed in the driving disc, the valve plate is positioned in the joint of the driving disc and the valve plate, and an oil return hole is formed between the front cover and the driving disc; the electromagnetic coil is arranged on one side, far away from the front cover, of the rear cover, and the electromagnetic coil is sleeved on the coupler and used for enabling the valve plate to generate axial displacement through electrification or outage.

In one possible implementation, the electronically controlled fan of the air cooled engine further comprises a support structure; the supporting structure is arranged in the cylinder body and is positioned at one end, far away from an output shaft of the engine, of the electrically-controlled silicone oil clutch, and the supporting structure is used for connecting the electrically-controlled silicone oil clutch with the stationary blade wheel assembly.

In one possible implementation, the support structure includes a flange and a cantilever shaft; the flange plate is arranged between the stator blade wheel assembly and the electrically-controlled silicone oil clutch and used for connecting the electrically-controlled silicone oil clutch with the cantilever shaft; the cantilever shaft penetrates through the stationary blade wheel assembly, and the cantilever shaft and the coupler are located on the same axis.

In one possible implementation, a first bearing is disposed at one end of the cantilever shaft near the flange, and a second bearing is disposed at the other end of the cantilever shaft.

In one possible implementation, the end of the cantilever shaft remote from the flange plate is provided with a pressure pad.

In one possible implementation, the vane wheel assembly includes a support and a vane wheel; the support is located inside the barrel, and two ends of the static impeller are fixedly connected to the support and the barrel respectively.

In one possible implementation, the bracket is provided with mounting holes on both sides.

In one possible implementation, the cylinder is cylindrical.

One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:

the embodiment of the utility model provides an electric control fan of an air-cooled engine, which comprises a cylinder body, a stationary blade wheel assembly, an electric control silicone oil clutch, a coupler and a movable impeller. The electronic control silicone oil clutch controls the rotating speed of the brake impeller according to the information provided by the temperature sensors at all parts of the engine, so that more accurate and rapid response can be made. Further, the front stationary blade wheel assembly of the electrically controlled silicone oil clutch is matched with the movable blade wheel, so that the wind power flow direction can be controlled, the wind power is more concentrated, and the wind quantity is larger. Therefore, the electric control fan of the air-cooled engine can accurately control the rotating speed of the movable impeller, has high response efficiency, ensures the refrigerating effect, has a simple structure, and can effectively reduce the oil consumption of the air-cooled engine.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments of the present utility model or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an electric control fan of an air-cooled engine according to an embodiment of the present application;

fig. 2 is a cross-sectional view of an electrically controlled silicone oil clutch of an electrically controlled fan of an air cooled engine according to an embodiment of the present application;

fig. 3 is a perspective view of a supporting structure of an electric control fan of an air-cooled engine according to an embodiment of the present application;

fig. 4 is a perspective view of a vane wheel assembly of an electric control fan of an air-cooled engine according to an embodiment of the present application;

fig. 5 is a front view of an electronically controlled fan of an air cooled engine according to an embodiment of the present application.

Reference numerals: 100-electric control silicone oil clutch; 110-an oil outlet hole; 120-active disc; 130-front cover; 140-working chamber; 150-valve plates; 160-electromagnetic coils; 161-coil bearings; 170-a rear cover; 180-an oil storage cavity; 190-oil return holes; 200-moving the impeller; 300-stationary blade wheel assembly; 310-static impeller; 320-bracket; 321-mounting holes; 400-electromagnetic signal input end; 500-cylinder; 600-shaft coupling; 700-a support structure; 710-a cantilever shaft; 711-first bearing; 712-a second bearing; 713-press pad; 720-flange plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, electrically connected, or directly connected. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

The embodiment of the application provides an electric control fan of an air-cooled engine, which is shown in fig. 1 to 5. Fig. 1 is a schematic structural diagram of an electric control fan of an air-cooled engine provided in an embodiment of the present application, fig. 2 is a cross-sectional view of an electric control silicone oil clutch of the electric control fan of the air-cooled engine provided in an embodiment of the present application, fig. 3 is a three-dimensional structural diagram of a support structure of the electric control fan of the air-cooled engine provided in an embodiment of the present application, fig. 4 is a three-dimensional structural diagram of a stator blade wheel assembly of the electric control fan of the air-cooled engine provided in an embodiment of the present application, and fig. 5 is a front view of the electric control fan of the air-cooled engine provided in an embodiment of the present application.

As shown in fig. 1, the electric control fan of the air-cooled engine provided in the embodiment of the application includes a barrel 500, a stationary blade wheel assembly 300, an electric control silicone oil clutch 100, a coupling 600 and a movable blade wheel 200. The inside of the cylinder 500 is provided with a stationary blade wheel assembly 300, an electrically controlled silicone oil clutch 100 and a movable blade wheel 200 in order along the axial direction. The coupling 600 is located inside the cylinder 500, one end of the coupling 600 is used for being connected with an output shaft of an engine, and the other end of the coupling 600 is located inside the electrically-controlled silicone oil clutch 100 and used for driving an input end of the electrically-controlled silicone oil clutch 100 to rotate. The movable impeller 200 is arranged on the electrically-controlled silicone oil clutch 100, and the movable impeller 200 is linked with the output end of the electrically-controlled silicone oil clutch 100.

The embodiment of the application redesigns and improves the structure of the original fan of the air-cooled engine, and meets the installation and function use requirements of the whole machine. The electromagnetic valve in the electrically controlled silicone oil clutch controls the rotating speed of the cooling fan according to the information provided by the temperature sensors at all parts of the engine, so that more accurate and rapid response can be made.

The air cooling engine fan has higher air supply pressure than the water cooling engine, and the cooling air quantity required by the same heat dissipation is reduced because the temperature difference between the cooling fin and the cooling air is large, so the power consumed by the cooling fin and the cooling air driving the fan is basically the same. The air-cooled engines with more than two cylinders mostly adopt axial flow fans. Because the pressure coefficient of the fan of the air-cooled internal combustion engine is larger than 0.25, and is usually in the range of 0.25-0.6, the stator blade wheel assembly 300 is matched with the movable impeller 200, so that the flow direction of wind power can be controlled, the wind power is more concentrated, and the wind quantity is larger.

As shown in fig. 3, one side of the electrically controlled silicone oil clutch 100 is provided with an electromagnetic signal input 400 for controlling the amount of silicone oil entering the electrically controlled silicone oil clutch 100 and the rotational speed of the impeller 200.

The PWM signal of the electric control fan of the air-cooled engine is output by the engine controller determining the fan rotating speed according to the parameters of the engine water temperature signal, the air conditioner switching signal, the air temperature signal and the like, and the rotating speed of the movable impeller 200 is controlled by controlling the duty ratio, wherein the duty ratio is changed between 0% and 100%. Therefore, the rotating speed of the movable impeller 200 can be controlled more accurately through the electric control fan of the air-cooled engine.

When the air-cooled engine works, the end, connected with the output shaft of the engine, of the coupling 600 inputs the rotating speed according to the transmission speed ratio of the movable impeller 200, and the PWM signal of the electric control fan of the air-cooled engine is input into the electromagnetic coil 160 of the electric control valve through the electromagnetic signal input end 400, so that the silicon oil quantity entering the electric control silicone oil clutch 100 and the rotating speed of the movable impeller 200 are controlled.

By way of example, one specific configuration of electrically controlled silicone oil clutch 100 is provided in FIG. 2. Electrically controlled silicone oil clutch 100 includes a front cover 130, a drive plate 120, a valve plate 150, a rear cover 170, and a solenoid 160. The front cover 130 is sleeved at the end part of the coupling 600, which is far away from the output shaft of the engine, a containing space is formed between the front cover 130 and the rear cover 170, and the rear cover 170 is connected with the movable impeller 200 to drive the movable impeller 200 to rotate. The driving disk 120 is located in the receiving space, and forms a working chamber 140, an oil storage chamber 180 and a flow channel with the rear cover 170. One end of the valve plate 150 is disposed on the driving disc 120, the other end of the valve plate 150 is away from the driving disc 120 due to elasticity, an oil outlet 110 is disposed in the driving disc 120, and an oil return hole 190 is disposed between the front cover 130 and the driving disc 120 and in the connection between the driving disc 120 and the valve plate 150. The electromagnetic coil 160 is disposed on a side of the rear cover 170 away from the front cover 130, and the electromagnetic coil 160 is sleeved on the coupling 600, so as to enable the valve plate 150 to generate axial displacement by powering on or powering off.

When the electromagnetic coil 160 is electrified, the valve plate 150 is pressed on the oil outlet hole 110 under the action of electromagnetic force, the electrically controlled silicone oil clutch 100 is in a disconnection state, silicone oil in the working cavity 140 is discharged from the oil return hole 190, the oil quantity in the working cavity 140 is reduced, and the rotating speed of the coupler 600 is reduced; when the electromagnet is not electrified, the valve plate 150 moves away from the electromagnetic coil 160 under the action of the elasticity of the electromagnet, the oil outlet 110 is opened, the electrically-controlled silicone oil clutch 100 is in an engaged state, silicone oil enters the working cavity 140 from the oil storage cavity 180 through the oil outlet 110, the oil quantity in the working cavity 140 is increased, and the rotating speed of the coupler 600 is increased; when the electromagnetic coil 160 is powered by pulse, the valve has an adaptive opening degree according to different pulse duty ratios, and the movable impeller 200 operates at an adaptive rotating speed.

With continued reference to fig. 2, the electromagnetic coil 160 is mounted to the coupling 600 via a coil bearing 161 for supporting the electromagnetic coil 160.

As shown in fig. 3, the electric control fan of the air-cooled engine provided in the embodiment of the present application further includes a support structure 700. The supporting structure is arranged in the cylinder and is positioned at one end of the electrically controlled silicone oil clutch, which is far away from the output shaft of the engine, and is used for connecting the electrically controlled silicone oil clutch 100 and the stationary blade wheel assembly 300.

Illustratively, embodiments of the present application provide a specific implementation of a support structure 700 in fig. 3. The support structure 700 includes a flange 720 and a cantilever shaft 710. The flange 720 is disposed between the stator vane 310 assembly 300 and the electrically controlled silicone oil clutch 100, and is used for connecting the electrically controlled silicone oil clutch 100 and the cantilever shaft 710, the cantilever shaft 710 penetrates through the stator vane assembly 300, the cantilever shaft 710 and the coupling 600 are located on the same axis, and the cantilever shaft 710, the flange 720 and the electrically controlled silicone oil clutch 100 are linked.

As shown in fig. 1, one end of the cantilever shaft 710, which is close to the flange 720, is provided with a first bearing 711, and the other end of the cantilever shaft 710 is provided with a second bearing 712. The first bearing 711 and the second bearing 712 are used to support the vane wheel assembly 300.

As shown in fig. 5, the end of the cantilever shaft 710 away from the flange 720 is provided with a pressing pad 713, which can block the entry of dust and other foreign matters. In one implementation of the embodiment of the present application, the cantilever shaft 710 partially extends out of the cylinder 500, so that the installation of the pressing pad 713 is facilitated, and of course, the cantilever shaft 710 may be flush with the cylinder 500, which is not limited by the structure that the cantilever shaft 710 partially extends out of the cylinder 500.

Illustratively, the present embodiment provides a specific implementation of the vane wheel assembly 300 in FIG. 4. The stator vane assembly 300 includes a stationary vane 310 and a stationary shroud 320. The bracket 320 is located inside the cylinder 500, and both ends of the stationary blade wheel 310 are fixedly connected to the bracket 320 and the cylinder 500, respectively. The support 320 is sleeved on the cantilever shaft 710, and the cylinder 500, the support 320 and the stationary blade wheel 310 are stationary during the operation of the electric control fan of the air-cooled engine.

In one implementation of the embodiment of the present application, the stationary blade wheel assembly 300 is arranged in front of the movable blade wheel 200, the movable blade wheel 200 does not need to be provided with a protective cover, and scale is not generated due to the reduction of the air flow rate, and the installation of the stationary blade wheel assembly 300 has the following advantages that (1) the required wind pressure is 12% -23% lower; (2) The power consumed by driving the impeller 200 is 15% -22% lower; (3) the heat release coefficient is 0.5 to 3.5 percent higher; (4) electrically controlled silicone oil clutch 100 is relatively clean.

As shown in fig. 1, mounting holes 321 are provided at both sides of the bracket 320, and outer sides of the first bearing 711 and the second bearing 712 are mounted to the mounting holes 321 by interference. In the operation process of the electric control fan of the air-cooled engine, the cantilever shaft 710, the flange 720, the electric control silicone oil clutch 100, the movable impeller 200 and the coupling 600 move, the cylinder 500, the bracket 320 and the stationary impeller 310 are stationary, and the structure can enable wind power to be concentrated and wind quantity to be large.

As shown in fig. 5, the cylinder 500 is cylindrical. Of course, this structure is not limited, as long as the rotation of the impeller 200 is not limited.

In this specification, each embodiment is described in a progressive manner, and the same or similar parts of each embodiment are referred to each other, and each embodiment is mainly described as a difference from other embodiments.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the present application; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions.

Claims

1. An electric control fan of an air-cooled engine is characterized by comprising a cylinder (500), a stationary blade wheel assembly (300), an electric control silicone oil clutch (100), a coupler (600) and a movable blade wheel (200);

the static blade wheel assembly (300), the electrically controlled silicone oil clutch (100) and the movable blade wheel (200) are sequentially arranged in the cylinder (500) along the axial direction;

the coupler (600) is positioned in the cylinder body (500), one end of the coupler (600) is connected with an output shaft of an engine, and the other end of the coupler (600) is positioned in the electrically-controlled silicone oil clutch (100) and used for driving an input end of the electrically-controlled silicone oil clutch (100) to rotate;

the movable impeller (200) is arranged on the electrically-controlled silicone oil clutch (100), and the movable impeller (200) is linked with the output end of the electrically-controlled silicone oil clutch (100).

2. The electrically controlled fan of an air cooled engine of claim 1, wherein the electrically controlled silicone oil clutch (100) includes a front cover (130), a driving disk (120), a valve plate (150), a rear cover (170), and a solenoid (160);

the front cover (130) is sleeved at the end part of the coupler (600) far away from the output shaft of the engine, and a containing space is formed between the front cover (130) and the rear cover (170);

the rear cover (170) is connected with the movable impeller (200) and drives the movable impeller to rotate;

the driving disc (120) is positioned in the accommodating space and forms a working cavity (140), an oil storage cavity (180) and a flow channel with the rear cover (170);

one end of the valve plate (150) is arranged on the driving disc (120), the other end of the valve plate (150) is away from the driving disc (120) due to elasticity, an oil outlet (110) is formed in the driving disc (120), the valve plate is positioned in the joint of the driving disc (120) and the valve plate (150), and an oil return hole (190) is formed between the front cover (130) and the driving disc (120);

the electromagnetic coil (160) is arranged on one side, far away from the front cover (130), of the rear cover (170), and the electromagnetic coil (160) is sleeved on the coupler (600) and used for enabling the valve plate (150) to axially displace through electrification or outage.

3. The electrically controlled fan of an air cooled engine of claim 1, further comprising a support structure (700);

the supporting structure (700) is arranged in the cylinder (500) and is positioned at one end, far away from an output shaft of the engine, of the electrically-controlled silicone oil clutch (100) and is used for connecting the electrically-controlled silicone oil clutch (100) and the stationary blade wheel assembly (300).

4. An electrically controlled fan for an air cooled engine according to claim 3, wherein the support structure (700) comprises a flange (720) and a cantilever shaft (710);

the flange plate (720) is arranged between the stator blade wheel assembly (300) and the electrically-controlled silicone oil clutch (100) and is used for connecting the electrically-controlled silicone oil clutch (100) and the cantilever shaft (710);

the cantilever shaft extends through the stator blade wheel assembly (300), and the cantilever shaft (710) and the coupler (600) are located on the same axis.

5. The electrically controlled fan of an air-cooled engine according to claim 4, wherein one end of the cantilever shaft (710) near the flange plate (720) is provided with a first bearing (711), and the other end of the cantilever shaft (710) is provided with a second bearing (712).

6. An electrically controlled fan for an air cooled engine according to claim 4 or 5, characterized in that the end of the cantilever shaft (710) remote from the flange plate (720) is provided with a pressure pad (713).

7. The electrically controlled fan of an air cooled engine of claim 1, wherein the vane wheel assembly (300) includes a carrier (320) and a vane wheel (310);

the support (320) is located inside the cylinder (500), and two ends of the stationary blade wheel (310) are fixedly connected to the support (320) and the cylinder (500) respectively.

8. The electrically controlled fan of an air-cooled engine according to claim 7, wherein mounting holes (321) are provided on both sides of the bracket (320).

9. An electrically controlled fan for an air cooled engine as claimed in claim 1, wherein the cylinder (500) is cylindrical.