Pneumatic control silicone oil clutch

Abstract

The invention discloses a pneumatic control silicone oil clutch, and aims to solve the problems that a silicone oil clutch is more in assembly parts, complex in assembly process and high in failure risk, and the service life of the silicone oil clutch is shortened. According to the key points of the technical scheme, the device comprises a driving shaft and a driving plate fixedly connected with the driving shaft, the driving plate is used for transmitting power after being connected with the driving shaft, the device further comprises an end cover and a shell connected with the end cover through a first screw, the shell is rotationally connected with the driving plate through a bearing, and a signal ring riveted with the shell is arranged on the shell. The motor further comprises an integrated air inlet rotating speed sensing assembly which is connected to the driving shaft, a center hole and a side face hole of the driving shaft are drilled to form a channel, and the driving shaft and the integrated air inlet rotating speed sensing assembly form an air flow channel. According to the invention, the original uncontrollable magnetic force variable is changed into controllable gas inflow and gas displacement, so that the original assembly parts are reduced, the control of the clutch is more accurate, and the reliability of an engine is improved.

Description

Technical Field

[0001] This invention relates to the field of silicone oil clutch technology, and more specifically, to a pneumatically controlled silicone oil clutch. Background Technology

[0002] Traditional silicone oil clutches, such as Figure 3 As shown, when the coil is energized, it generates magnetic force. The magnetic circuit is transmitted from the iron shell in the coil to the anti-loosening washer → the iron shell of the bearing → the inner bushing nested on the drive plate → the valve plate → the drive shaft → back to the iron shell of the coil, forming a closed loop. The signal ring is press-fitted onto the housing, and a Hall signal is generated by rotating and cutting the magnetic field lines of the Hall sensor in the coil.

[0003] The aforementioned silicone oil clutch has many components, a complex assembly process, and a high risk of failure, which shortens the service life of the silicone oil clutch, reduces user experience, and increases product waste.

[0004] Therefore, a solution needs to be proposed to address this problem. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a pneumatically controlled silicone oil clutch that transforms the previously uncontrollable magnetic force variable into a controllable gas intake and exhaust volume, reduces the original assembly parts, makes the clutch control more precise, and improves the reliability of the engine.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a pneumatically controlled silicone oil clutch, comprising a drive shaft and a drive plate fixedly connected to the drive shaft, wherein the drive plate is used to transmit power after being connected to the drive shaft;

[0007] It also includes an end cap and a housing connected to the end cap by screws. The housing is rotatably connected to the drive plate by a bearing, and a signal ring riveted to it is provided on the housing.

[0008] It also includes an integrated intake speed sensing component, which is connected to the drive shaft. The drive shaft has a center hole and a side hole to form a channel, which forms an airflow channel with the integrated intake speed sensing component. The signal ring extends into the groove of the integrated intake speed sensing component.

[0009] It also includes a metal frame elastic rubber and a valve plate. The metal frame elastic rubber is riveted to the top of the drive shaft. The valve plate is elastic. One end of the valve plate is connected to the drive plate by two screws. The center of the valve plate is opposite to the metal frame elastic rubber. The drive plate is provided with an oil outlet hole. The upper part of the valve plate is opposite to the oil outlet hole.

[0010] The present invention is further configured such that: a Hall speed sensor is provided on the outside of the integrated intake speed sensing component, and the signal ring extends into the U-shaped groove of the outer ring of the integrated intake speed sensing component, and generates a Hall signal by cutting magnetic field lines.

[0011] The present invention is further configured such that: the integrated intake speed sensing component is connected to the air pump through the intake pipe and connected to the vehicle ECU through the wiring harness; the integrated intake speed sensing component can read the signal loop speed and transmit it to the vehicle ECU.

[0012] The present invention is further configured such that: a driven plate is provided on the active plate and riveted thereto, the driven plate and the active plate together form an oil storage chamber, and the active plate together with the shell and the cover form a working cavity with toothed grooves.

[0013] The present invention is further configured such that: an oil return channel is provided inside the end cap, one end of the oil return channel is connected to the working chamber, and the other end of the oil return channel is connected to the oil storage chamber.

[0014] In summary, the present invention has the following beneficial effects:

[0015] 1. This invention transforms the previously uncontrollable magnetic variables into controllable gas intake and exhaust volumes, making clutch control more precise and improving engine reliability.

[0016] 2. This invention reduces the number of assembly parts;

[0017] 3. This invention transforms the original coil, which was mainly made of copper wire, into an integrated intake speed sensing component with air inside, thus reducing costs;

[0018] 4. The integrated intake speed sensing component of this invention provides a basically stable force through intake and exhaust, thus enhancing reliability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention in the air intake state;

[0020] Figure 2 This is a schematic diagram of the structure of the present invention in the gas outlet state;

[0021] Figure 3 This is a schematic diagram of the structure of an existing silicone oil clutch in the background art.

[0022] In the diagram: 1. Drive shaft; 2. Integrated intake speed sensing assembly; 3. Spring pad; 4. Bearing; 5. Signal ring; 6. Housing; 7. Drive plate; 8. Screw one; 9. Sealing ring; 10. End cap; 11. Driven plate; 12. Valve plate; 13. Metal frame type elastic rubber; 14. Screw two; 15. Oil reservoir; 16. Oil outlet; 17. Air pipe; 18. Wiring harness. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0024] In the description of this invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] The present invention will now be described in detail with reference to the accompanying drawings.

[0027] A type of pneumatically controlled silicone oil clutch, such as Figures 1-2 As shown, it includes a drive shaft 1 and a drive plate 7 fixedly connected to the drive shaft 1. The drive plate 7 is used to transmit power after being connected to the drive shaft 1.

[0028] It also includes an end cap 10 and a housing 6 connected to the end cap 10 by screws 8. A sealing ring 9 is provided between the end cap 10 and the housing 6 to prevent silicone oil leakage. The housing 6 is rotatably connected to the active plate 7 by bearings 4. A signal ring 5 is provided on the housing 6 and riveted thereto.

[0029] It also includes an integrated intake speed sensor 2, which is connected to the drive shaft 1. A spring pad 3 is fixedly connected to the outer wall of the drive shaft 1 to prevent the integrated intake speed sensor 2 from loosening. The drive shaft 1 has a hole drilled in the center and holes drilled on the side to form a channel. The middle part is connected to form an air storage chamber, which forms an airflow channel with the integrated intake speed sensor 2. The signal ring 5 extends into the groove of the integrated intake speed sensor 2.

[0030] It also includes a metal frame type elastic rubber 13 and a valve plate 12. The metal frame type elastic rubber 13 is riveted to the top of the drive shaft 1. The metal frame type elastic rubber 13 can also be replaced with an elastic polymer. The valve plate 12 is elastic. One end of the valve plate 12 is connected to the drive plate 7 by a screw 14. The center part of the valve plate 12 is opposite to the metal frame type elastic rubber 13. The drive plate 7 is provided with an oil outlet hole 16. The upper part of the valve plate 12 is opposite to the oil outlet hole 16.

[0031] Air intake causes the metal frame elastic rubber 13 to bulge, lifting the valve plate 12; air release causes the metal frame elastic rubber 13 to rebound, and the valve plate 12 rebounds accordingly, thereby controlling the opening and closing of the valve plate 12.

[0032] The integrated intake speed sensing component 2 has a Hall speed sensor on its outer side, and the signal ring 5 extends into the U-shaped groove on the outer ring of the integrated intake speed sensing component 2 to generate a Hall signal by cutting magnetic field lines.

[0033] The integrated intake speed sensor 2 is connected to the air pump through the intake pipe 17 and to the vehicle ECU through the wiring harness 18. The integrated intake speed sensor 2 can read the speed of the signal ring 5 and transmit it to the vehicle ECU.

[0034] The active plate 7 is provided with a driven plate 11 riveted to it. The driven plate 11 and the active plate 7 together form an oil storage chamber 15. The active plate 7, the housing 6, and the cover together form a working cavity with teeth.

[0035] Working principle: When air enters the integrated intake speed sensing component 2, the valve plate 12 is lifted by the metal frame elastic rubber 13, opening the oil outlet 16. The silicone oil in the oil reservoir 15 enters the gear working chamber through centrifugal force, and the clutch enters the coupling state, driving the fan to work. At the same time, the signal ring 5 fixed on the housing 6 rotates at the same speed, cutting the Hall sensor inside the integrated intake speed sensing component 2, converting it into fan speed and transmitting it to the vehicle ECU.

[0036] When the vehicle ECU determines that the fan needs to slow down, it controls the integrated intake speed sensor 2 to exhaust the air, the metal frame elastic rubber 13 rebounds and recovers, the corresponding valve plate 12 rebounds, the oil outlet 16 is closed, the silicone oil enters the oil reservoir 15 from the return oil channel, and the fan stops working.

[0037] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A pneumatically controlled silicone oil clutch, characterized in that: It includes a drive shaft (1) and a drive plate (7) fixedly connected to the drive shaft (1). The drive plate (7) is used to transmit power after being connected to the drive shaft (1). It also includes an end cap (10) and a housing (6) connected to the end cap (10) by screws (8). The housing (6) is rotatably connected to the active plate (7) by bearings (4). A signal ring (5) is riveted to the housing (6). It also includes an integrated intake speed sensing component (2), which is connected to the drive shaft (1). The drive shaft (1) has a central hole and a side hole to form a channel, which forms an airflow channel with the integrated intake speed sensing component (2). The signal ring (5) extends into the groove of the integrated intake speed sensing component (2). It also includes a metal frame elastic rubber (13) and a valve plate (12). The metal frame elastic rubber (13) is riveted to the top of the drive shaft (1). The valve plate (12) is elastic. One end of the valve plate (12) is connected to the drive plate (7) by screw two (14). The center of the valve plate (12) is opposite to the metal frame elastic rubber (13). The drive plate (7) is provided with an oil outlet hole (16). The upper part of the valve plate (12) is opposite to the oil outlet hole (16).

2. The pneumatically controlled silicone oil clutch according to claim 1, characterized in that: The integrated intake speed sensing component (2) has a Hall speed sensor on its outer side. The signal ring (5) extends into the U-shaped groove on the outer ring of the integrated intake speed sensing component (2) and generates a Hall signal by cutting magnetic field lines.

3. The pneumatically controlled silicone oil clutch according to claim 2, characterized in that: The integrated intake speed sensing component (2) is connected to the air pump through the intake pipe (17) and to the vehicle ECU through the wiring harness (18). The integrated intake speed sensing component (2) can read the speed of the signal loop (5) and transmit it to the vehicle ECU.

4. The pneumatically controlled silicone oil clutch according to claim 1, characterized in that: The active plate (7) is provided with a driven plate (11) riveted to it. The driven plate (11) and the active plate (7) together form an oil storage chamber (15). The active plate (7), the housing (6), and the cover together form a working cavity with toothed grooves.

5. A pneumatically controlled silicone oil clutch according to claim 4, characterized in that: The end cap (10) is provided with an oil return channel. One end of the oil return channel is connected to the working chamber, and the other end of the oil return channel is connected to the oil storage chamber (15).

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