A controllable stepless speed-changing temperature-controlled clutch

Abstract

The present invention discloses a controllable continuously variable speed temperature-controlled clutch, which comprises: a cover body, a shell, a temperature sensor, a main board, a slave plate, a valve plate and a valve shaft. The cover body, the shell, the active plate and the slave plate constitute a working chamber, and the driven plate and the cover body form an oil storage chamber. The invention also comprises a stepless oil control mechanism, which comprises a cover body and a slave plate riveted together, a valve plate abutting against the slave plate or the cover body, and a temperature sensor for controlling the movement of the valve plate. The oil control method of the stepless oil control mechanism is radial oil control, and the stepless oil control mechanism comprises a radial oil outlet and a baffle for opening and closing the radial oil outlet. The clutch has a stepless control mechanism and radial oil outlet capability. The temperature-controlled clutch can realize complete linear control of the fan speed, while reducing engine power consumption and noise and improving the coupling capability of the temperature-controlled silicone oil clutch.

Description

Technical Field

[0001] The utility model relates to the field of silicone oil fan clutches, in particular to a controllable stepless speed-changing temperature-controlled clutch. Background Art

[0002] With the advancement of the National VI emission standards in China, major commercial vehicle companies have put forward higher requirements for engine cooling systems. Among them, the silicone oil fan clutch is a core component. Its cooling capacity and power consumption are crucial to the entire air cooling system. It is an effective way to improve engine performance. Among them, the continuously variable silicone oil fan clutch has the ability to reasonably adjust the fan output speed according to the cooling needs of the whole vehicle, and has been widely concerned and recognized by the host.

[0003] With the continuous development of my country's automobile industry, automobile manufacturers have gradually put forward higher requirements on engine power consumption. In this process, silicone oil clutch plays a key role in reducing engine power consumption. Silicone oil clutch can effectively reduce engine power consumption, improve engine combustion, and extend engine service life. At the same time, it can effectively reduce noise and improve driving comfort.

[0004] Most of the existing temperature-controlled silicone oil clutches are two-stage speed-changing silicone oil clutches, which are characterized in that when the ambient temperature reaches the coupling temperature, the silicone oil clutch couples and drives the fan to run at high speed; when the ambient temperature drops to the separation temperature, the silicone oil clutch slows down and separates, and the fan is in a low-speed state. This clutch can only control the two states of separation and coupling, but cannot control the intermediate speed of the clutch, which also causes some unnecessary loss of engine power.

[0005] At present, most temperature-controlled clutches on the market are two-stage speed-changing clutches, which means that they can only control separation and coupling, but cannot control the intermediate speed of the clutch. When the ambient temperature reaches the coupling temperature, the clutch couples instantly. At this time, the fan speed suddenly increases, causing a sudden increase in engine compartment noise, while increasing the engine's power consumption and causing the engine's service life to decrease.

[0006] Under the current strict requirements on engine noise and power consumption, a controllable and stable continuously variable temperature-controlled clutch is a product urgently needed in the market. Utility Model Content

[0007] Purpose of the utility model: In order to solve the deficiencies of the prior art, the utility model describes a controllable continuously variable temperature control clutch. The temperature control clutch achieves complete linear control of the fan speed from separation to coupling and from coupling to separation by adding radial oil outlet holes, thereby reducing engine power consumption and noise.

[0008] Technical solution: In order to achieve the above objectives, the utility model discloses a controllable stepless speed temperature-controlled clutch, which comprises: a cover body, a shell, a temperature sensor, a main plate, a slave plate, a valve plate and a valve shaft. The cover body, the shell, the active plate and the slave plate constitute a working chamber, and the oil storage chamber is formed by the driven plate and the cover body. It also comprises a stepless oil control mechanism, which comprises a cover body and a slave plate riveted together, a valve plate abutting against the slave plate or the cover body, and a temperature sensor for controlling the movement of the valve plate. The oil control method of the stepless oil control mechanism is radial oil control, and the stepless oil control mechanism comprises a radial oil outlet and a baffle for opening and closing the radial oil outlet.

[0009] As a further preferred embodiment of the present invention, the radial oil outlet holes are located on a circular ring fixed at the radial edge of the slave plate. By radially arranging the oil outlet holes, the temperature control clutch can achieve complete linear control of the fan speed.

[0010] As a further preferred embodiment of the present invention, the angle between the circular ring and the slave plate is 60° to 120°, which reduces engine power consumption and noise and improves the coupling capacity of the temperature-controlled silicone oil clutch.

[0011] As a further preference of the utility model, a pressure relief hole is provided on the slave plate. When an unexpected situation occurs that makes it difficult to return the oil and thus the clutch does not disengage, the pressure in the oil storage chamber can be reduced by providing a pressure relief hole on the slave plate, thereby ensuring the stability of the clutch operation and extending the service life of the clutch to a certain extent.

[0012] As a further preferred embodiment of the present invention, the baffle is located at the end of the valve plate, which directly, effectively and quickly responds to oil output or oil return.

[0013] As a further preferred embodiment of the present invention, the shape of the baffle is matched with the shape of the radial oil outlet hole. Since the inner surface of the ring is a curved surface, in order to ensure the efficiency of closing the radial oil outlet hole, the baffle is set to the same curved surface as the inner surface of the ring.

[0014] As a further preferred embodiment of the present invention, the size of the baffle is larger than the radial oil outlet hole, thereby ensuring the reliability of closing the radial oil outlet hole.

[0015] As a further preferred embodiment of the present invention, the valve shaft controls the movement of the valve plate to realize the opening and closing of the radial oil outlet hole. When the temperature sensor is affected by temperature changes, the movement of the valve shaft connected to the temperature sensor drives the valve plate to move. This is the prior art and will not be repeated.

[0016] As a further preferred embodiment of the utility model, the radial oil outlet holes are radially arranged on the cover body. This design can greatly increase the oil outlet speed of the clutch. At this time, the function of the slave plate is no longer to discharge oil, but to form an oil storage cavity with the cover body.

[0017] Beneficial effects: The utility model describes a controllable continuously variable temperature-controlled clutch, which has a stepless control mechanism and radial oil discharge capability. The temperature-controlled clutch can achieve complete linear control of the fan speed, while reducing engine power consumption and noise and improving the coupling capability of the temperature-controlled silicone oil clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of a slave board;

[0019] Figure 2 It is a structural schematic diagram of the utility model when the radial oil outlet hole is located on the slave plate;

[0020] Figure 3 This is a partial enlarged view of the radial oil outlet hole when it is located on the slave plate;

[0021] Figure 4 This is a schematic diagram of the structure of the utility model when the radial oil outlet hole is located on the cover body.

[0022] Figure 5 A partial enlarged view of the radial oil outlet hole on the cover

[0023] Figure 6 This is a performance diagram of the clutch after using the utility model. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] like Figure 1 As shown, the utility model describes a controllable continuously variable temperature control clutch, which includes: a cover body 1, a shell 2, a temperature sensor 3, a main board 4, a slave plate 5, a valve plate 6 and a valve shaft 7, wherein the cover body 1, the temperature sensor 3, the slave plate 5 and the valve plate 6 constitute a stepless oil control mechanism, the oil control method of the stepless oil control mechanism is radial oil control, and the stepless oil control mechanism includes a radial oil outlet hole 52 and a baffle 61 for opening and closing the radial oil outlet hole 52.

[0026] The radial oil outlet holes 52 are located on a circular ring 53 fixed at the radial edge of the slave plate 5 or on the cover body 1 , and the angle between the circular ring 53 and the slave plate 5 is 60° to 120°.

[0027] The cover body 1 , the housing 2 , the active plate 4 and the driven plate 5 form a working chamber, and the driven plate 5 and the cover body 1 form an oil storage chamber.

[0028] Example 1

[0029] When the temperature sensor 3 senses that the engine temperature is low and the silicone oil clutch is in a disengaged state, the valve plate 6 will completely seal the radial oil outlet holes on the plate 5. Figure 2 , Figure 3 As shown;

[0030] When the temperature sensor 3 senses that the temperature of the engine compartment rises to 45°C, the temperature sensor 3 begins to deform due to the temperature change, controls the valve shaft 7 to move upward, and the valve plate 6 begins to open the radial oil outlet holes 52 on the plate 5. Since the radial oil outlet holes 52 are radially arranged, at the beginning, the area of ​​the radial oil outlet holes 52 opened by the baffle 61 on the valve plate 6 is very small. As the temperature rises, the degree of deformation of the temperature sensor 3 gradually increases, the movement angle of the valve shaft 7 controlling the valve plate 6 becomes larger, the area of ​​the radial oil outlet holes 52 opened by the baffle 61 gradually increases, the oil outlet speed begins to increase, and the silicone oil gradually flows from the oil storage chamber into the working chamber. In the process of gradually increasing temperature, the oil outlet speed of the radial oil outlet holes 52 increases linearly;

[0031] When the temperature sensor 3 senses that the temperature of the engine compartment rises to 75°C, a large amount of silicone oil enters the working chamber, and the temperature-controlled silicone oil clutch enters the fully coupled stage, and in the process of the baffle 61 gradually opening the radial oil outlet hole 52, the valve plate 6 will gradually close the oil return hole 8, so that the amount of silicone oil in the working chamber is more, thereby increasing the coupling capacity of the temperature-controlled silicone oil clutch;

[0032] When the temperature sensor 3 senses that the temperature of the engine compartment has dropped to 70°C, the silicone oil gradually enters the oil storage chamber from the oil return hole 8, and the silicone oil clutch begins to separate. During the temperature drop, the temperature sensor 3 gradually resets, and the valve shaft 7 drives the valve plate 6 to slowly close the radial oil outlet hole 52 on the plate 5. At this time, the oil outlet speed of the radial oil outlet hole 52 changes from fast to slow. As the oil outlet area of ​​the radial oil outlet hole 52 gradually decreases, the oil outlet speed decreases linearly until the temperature drops to 45°C, a large amount of silicone oil enters the oil storage chamber, and the temperature-controlled silicone oil clutch is completely separated. Figure 6 shown.

[0033] Example 2

[0034] When the temperature sensor 3 senses that the engine temperature is low and the silicone oil clutch is in a disengaged state, the valve plate 6 completely seals the radial oil outlet holes on the cover body 1. Figure 4 , Figure 5 As shown;

[0035] When the temperature sensor 3 senses that the temperature of the engine compartment rises to 45°C, the temperature sensor 3 begins to deform due to the temperature change, controls the valve shaft 7 to move upward, and the valve plate 6 begins to open the radial oil outlet hole 52 on the cover body 1. Since the radial oil outlet hole 52 is radially arranged, at the beginning, the area of ​​the radial oil outlet hole 52 opened by the baffle 61 on the valve plate 6 is very small. As the temperature rises, the degree of deformation of the temperature sensor 3 gradually increases, the valve shaft 7 controls the valve plate 6 to rotate at a larger angle, and the area of ​​the radial oil outlet hole 52 opened by the baffle 61 gradually increases. The oil outlet speed begins to increase, and the silicone oil gradually flows from the oil storage chamber into the working chamber. In the process of gradually increasing temperature, the oil outlet speed of the radial oil outlet hole 52 increases linearly.

[0036] When the temperature sensor 3 senses that the temperature of the engine compartment rises to 75°C, a large amount of silicone oil enters the working chamber, and the temperature-controlled silicone oil clutch enters the fully coupled stage, and in the process of the baffle 61 gradually opening the radial oil outlet hole 52, the valve plate 6 will gradually close the oil return hole 8, so that the amount of silicone oil in the working chamber is more, thereby increasing the coupling capacity of the temperature-controlled silicone oil clutch;

[0037] When the temperature sensor 3 senses that the temperature of the engine compartment has dropped to 70°C, the silicone oil gradually enters the oil storage chamber from the oil return hole 8, and the silicone oil clutch begins to separate. During the temperature drop, the temperature sensor 3 gradually resets, and the valve shaft 7 drives the valve plate 6 to slowly close the radial oil outlet hole 52 on the cover body 1. At this time, the oil outlet speed of the radial oil outlet hole 52 changes from fast to slow. As the oil outlet area of ​​the radial oil outlet hole 52 gradually decreases, the oil outlet speed decreases linearly until the temperature drops to 45°C, a large amount of silicone oil enters the oil storage chamber, and the temperature-controlled silicone oil clutch is completely separated. Figure 6 shown.

[0038] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable technicians familiar with the technical field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A controllable continuously variable temperature control clutch, comprising: A cover body (1), a shell (2), a temperature sensor (3), a main board (4), a slave plate (5), a valve plate (6) and a valve shaft (7); the cover body (1), the shell (2), the active plate (4) and the slave plate (5) form a working chamber, and an oil storage chamber is formed by the driven plate (5) and the cover body (1); the feature is that it also includes a stepless oil control mechanism, the stepless oil control mechanism includes a cover body (1) and a slave plate (5) riveted together, a valve plate (6) abutting against the slave plate (5) or the cover body (1), and a temperature sensor (3) for controlling the movement of the valve plate (6); the stepless oil control mechanism is a radial oil control mechanism, the stepless oil control mechanism includes a radial oil outlet hole (52) and a baffle (61) for opening and closing the radial oil outlet hole (52); the baffle (61) is located at the end of the valve plate (6); the valve shaft (7) controls the movement of the valve plate (6) to realize the gradual opening and closing of the radial oil outlet hole (52), The radial oil outlet hole (52) is located on a circular ring (53) fixed at the radial edge of the slave plate (5), and the angle between the circular ring (53) and the slave plate (5) is 60° to 120°.

2. The controllable continuously variable temperature control clutch according to claim 1, characterized in that: The slave plate (5) is provided with a pressure relief hole (51).

3. The controllable continuously variable temperature control clutch according to claim 1, characterized in that: The shape of the baffle (61) is compatible with the shape of the radial oil outlet hole (52).

4. The controllable continuously variable temperature control clutch according to claim 3, characterized in that: The size of the baffle (61) is larger than the radial oil outlet hole (52).

5. The controllable continuously variable temperature control clutch according to claim 1, characterized in that: The radial oil outlet holes (52) are radially arranged on the cover body (1).

Images