A clutch for accessing and controlling motor power

Abstract

The present invention relates to the technical field of electric vehicle clutches, and discloses a clutch for accessing and controlling motor power, comprising a main wheel hub, wherein the outer movably connected portion of the main wheel hub is provided with a friction plate for connecting to a drive motor, and the outer movably connected portion of the main wheel hub is provided with a separator plate for cooperating with the friction plate to transmit the friction plate torque; hydraulic oil is delivered through an oil port 1 into a pressure chamber formed between a pressure plate, a piston, and a sealing lip, the oil pressure in the pressure chamber increases to drive the pressure plate to move, and the movement of the pressure plate drives the separator plate to contact the friction plate, and the pressure plate is separated from the separator plate under the push of a spring group, and the separator plate is separated from the friction plate, thereby realizing that the transmission of the drive motor torque stops. In this way, the clutch action can be controlled by the pressure chamber, the balance chamber is eliminated, the structure is simplified, the number of parts is reduced, the installation space of the electric vehicle clutch can be saved, and the reliability and stability of the clutch are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle clutches, in particular to a clutch for accessing and controlling motor power. Background Art

[0002] Traditional clutches mostly occupy a pancake-shaped space, generally centered on the spline interface of the transmission drive shaft in the axial direction. Such a clutch takes up most of the space inside the clutch, which is not conducive to the compact installation layout of the electric vehicle clutch. The existing electric vehicle clutch is equipped with a pressure chamber and a balance chamber to control the contact and separation actions of the clutch, which not only increases the number and complexity of the internal parts of the clutch, but also increases the spatial volume of the clutch. Summary of the Invention

[0003] In order to solve the problem that the pressure chamber and the balance chamber are set inside the clutch of the above-mentioned existing electric vehicle to control the contact and separation actions of the clutch, which not only increases the number and complexity of the internal parts of the clutch, but also increases the spatial volume of the clutch, the above-mentioned design without a balance chamber, simplified structure, simplicity and reliability are achieved.

[0004] The present invention is implemented through the following technical solutions: a clutch for accessing and controlling motor power, comprising a main hub, the external movably connected to a friction plate for connecting to a drive motor, the external movably connected to a separator plate for cooperating with the friction plate to transmit the friction plate torque, the external movably connected to a back plate for cooperating with the separator plate to transmit the friction plate torque, the external movably connected to an inner shell, the external movably connected to a pressure plate for controlling the contact between the separator plate and the friction plate, the external movably connected to a spring group, the external movably connected to a piston for cooperating with the pressure plate to form a pressure chamber, and the external movably connected to a sealing lip for sealing the contact between the pressure plate and the piston. A retaining ring is movably connected to the inner side of the main hub, a sealing ring is movably connected to the inner side of the main hub, an oil port 1 for pressure oil to flow into the interior of the main hub is opened on the surface of the main hub, an oil port 2 for lubricating oil to flow into the interior of the main hub is opened on the surface of the main hub, a lubricating oil outlet is opened on the surface of the main hub for lubricating oil to flow out, a sealing plug is fixedly connected to the inner side of the main hub, and a steel ball is fixedly connected to the interior of the main hub.

[0005] Furthermore, the main wheel hub is connected to the gearbox shaft, the friction plate is connected to the drive motor via an external spline, the friction plate and the separator are positioned parallel and spaced correspondingly, and the separator is connected to the inner housing via a spline.

[0006] Furthermore, the positions of the pressure plate and the separator are parallel and corresponding, the positions of the back plate and the separator are corresponding, and the inner shell is movably connected to the main hub.

[0007] Furthermore, the two ends of the spring group are movably connected to the outside of the pressure plate and the outside of the inner shell, respectively. A pressure chamber is formed between the pressure plate, the piston and the sealing lip, and the main hub is connected to the inside of the pressure chamber.

[0008] Furthermore, the piston and the main hub are limitedly connected by a snap ring, and the contact portion between the piston and the main hub is sealed by a sealing ring.

[0009] Furthermore, the oil port 1 corresponds to the position of the pressure oil passage of the main wheel hub and the specifications thereof match, and the oil port 2 corresponds to the position of the lubricating oil passage of the main wheel hub and the specifications thereof match.

[0010] Furthermore, the lubricating oil outlet corresponds to the position of the inner shell, the sealing plug corresponds to the position of the main wheel hub and the specifications match, and the steel ball corresponds to the position of the main wheel hub and the specifications match.

[0011] The present invention provides a clutch for controlling the power of a motor. It has the following beneficial effects:

[0012] Hydraulic oil is delivered through oil port 1 and the main wheel hub into the pressure chamber formed between the pressure plate, piston and sealing lip. The increased oil pressure inside the pressure chamber drives the pressure plate to move, and the movement of the pressure plate drives the separator plate and the friction plate to contact. The number of contacts between the separator plate and the friction plate enables the transmission of different torques of the drive motor from the friction plate through the separator plate and the inner housing to the outside of the main wheel hub and finally to the gearbox shaft. At the same time, the hydraulic oil in the pressure chamber is output through the main wheel hub, and the oil pressure inside the pressure chamber is reduced. The pressure plate is separated from the separator plate under the push of the spring group, and the separator plate is separated from the friction plate, thereby realizing the cessation of transmission of the drive motor torque. In this way, the clutch action can be controlled by the pressure chamber and the main wheel hub, eliminating the balance chamber, simplifying the structure, reducing the number of parts, saving the installation space of the electric vehicle clutch, and improving the reliability and stability of the clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the internal side structure of the present invention;

[0014] Figure 2 For the present invention Figure 1 A schematic diagram of the structure at center A;

[0015] Figure 3 For the present invention Figure 1 A magnified schematic diagram of the structure at point B in the middle;

[0016] Figure 4 For the present invention Figure 1 A magnified schematic diagram of the structure at point C in the middle;

[0017] Figure 5 For the present invention Figure 1 Enlarged schematic diagram of the structure at point D in the middle.

[0018] In the figure: 1. Main wheel hub; 11. Friction plate; 12. Separator; 13. Back plate; 14. Inner housing; 15. Pressure plate; 16. Spring assembly; 17. Piston; 18. Sealing lip; 2. Snap ring; 21. Sealing ring; 22. Oil port 1; 23. Oil port 2; 24. Lubricating oil outlet; 25. Sealing plug; 26. Steel ball. Implementation Method

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] The embodiment of the clutch for controlling the motor power is as follows: Example

[0021] See also Figure 1 - Figure 5 A clutch for accessing and controlling motor power includes a main hub 1, the external movably connected to a friction plate 11 for connecting to a drive motor, the external movably connected to the main hub 1 is a separator 12 for cooperating with the friction plate 11 to transmit the torque of the friction plate 11, the main hub 1 is connected to the gearbox shaft, the friction plate 11 is connected to the drive motor through an external spline, the positions of the friction plate 11 and the separator 12 are parallel and spaced correspondingly, and the separator 12 is connected to the inner shell 14 through a spline.

[0022] The main hub 1 is movably connected externally with a back plate 13 for cooperating with the separator 12 to transmit the torque of the friction plate 11. The main hub 1 is movably connected externally with an inner shell 14. The main hub 1 is movably connected externally with a pressure plate 15 for controlling the contact between the separator 12 and the friction plate 11. The pressure plate 15 is parallel to the position of the separator 12, the back plate 13 corresponds to the position of the separator 12, and the inner shell 14 is movably connected to the main hub 1.

[0023] The operation of the external drive motor drives the friction plate 11 to rotate. When the hydraulic oil inside the pressure chamber formed by the pressure plate 15, the piston 17, and the sealing lip 18 increases, the pressure plate 15 is pushed to slide outside the main wheel hub 1. The sliding of the pressure plate 15 compresses the spring group 16, and the pressure plate 15 slides until it contacts the separator 12. Driven by the pressure plate 15 and limited by the back plate 13, the separator 12 contacts the friction plate 11. The rotation of the friction plate 11 drives the separator 12 to rotate. The rotation of the separator 12 drives the inner housing 14 to rotate. The rotation of the inner housing 14 drives the main wheel hub 1 to rotate and transmits the driving torque to the gearbox shaft.

[0024] When the hydraulic oil pressure in the hydraulic chamber decreases, the pressure plate 15 slides back under the elastic force of the spring assembly 16 and separates from the separator 12 , and the separator 12 separates from the friction plate 11 and stops transmitting the drive motor torque.

[0025] The pressure plate 15 is movably connected to the outside of the spring group 16, and the main hub 1 is movably connected to the outside of the piston 17 for cooperating with the pressure plate 15 to form a pressure chamber. The piston 17 is movably connected to the outside of the sealing lip 18 for sealing the contact area between the pressure plate 15 and the piston 17. The two ends of the spring group 16 are movably connected to the outside of the pressure plate 15 and the outside of the inner shell 14 respectively. A pressure chamber is formed between the pressure plate 15, the piston 17 and the sealing lip 18, and the main hub 1 is communicated with the inside of the pressure chamber.

[0026] Hydraulic oil is delivered through the oil port 22 and the main wheel hub 1 into the pressure chamber formed between the pressure plate 15, the piston 17, and the sealing lip 18. The increase in the oil pressure inside the pressure chamber drives the pressure plate 15 to move, and the movement of the pressure plate 15 drives the separator 12 and the friction plate 11 to contact. The number of contacts between the separator 12 and the friction plate 11 enables the transmission of different torques of the drive motor from the friction plate 11 through the separator 12 and the inner housing 14 to the outside of the main wheel hub 1 and finally to the gearbox shaft. Example

[0027] See also Figure 1 - Figure 5 A clutch for accessing and controlling motor power includes a main hub 1, a retaining ring 2 is movably connected to the inner side of the main hub 1, a sealing ring 21 is movably connected to the inner side of the main hub 1, and a main hub 1 for the flow of pressure oil and lubricating oil is opened inside the main hub 1. The piston 17 is connected to the main hub 1 through the retaining ring 2, and the contact part between the piston 17 and the main hub 1 is sealed with a sealing ring 21.

[0028] The surface of the main hub 1 is provided with an oil port 1 22 for pressurized oil to flow into the interior of the main hub 1 , the surface of the main hub 1 is provided with an oil port 2 23 for lubricating oil to flow into the interior of the main hub 1 , and the surface of the main hub 1 is provided with a lubricating oil outlet 24 for lubricating oil to flow out. A sealing plug 25 is fixedly connected to the inner side of the main hub 1 , and a steel ball 26 is fixedly connected to the interior of the main hub 1 .

[0029] Based on Example 1, when the clutch action requires the separator plate 12 to contact the friction plate 11, the hydraulic oil enters the main hub 1 through the oil port 1 22, and the hydraulic oil is transported to the pressure chamber through the main hub 1. The increase in hydraulic oil in the pressure chamber pushes the pressure plate 15 to move, triggering the separator plate 12 to move and contact the friction plate 11.

[0030] When the clutch needs to stop, the separator 12 separates from the friction plate 11, and the hydraulic oil inside the pressure chamber flows back through the main hub 1 and leaves the pressure chamber, thereby reducing the hydraulic oil inside the pressure chamber. The pressure plate 15 is reset under the elastic force of the spring group 16, and the clutch action lubricating oil enters the main hub 1 through the oil port 2 23 and is transported to the inside of the clutch through the lubricating oil outlet 24 to dissipate heat and lubricate the friction plate 11 and the separator 12.

[0031] Oil port 1 22 corresponds to the position of the pressure oil channel of the main hub 1 and matches the specifications, oil port 2 23 corresponds to the position of the lubricating oil channel of the main hub 1 and matches the specifications, the lubricating oil outlet 24 corresponds to the position of the inner shell 14, the sealing plug 25 corresponds to the position of the main hub 1 and matches the specifications, and the steel ball 26 corresponds to the position of the main hub 1 and matches the specifications.

[0032] The hydraulic oil inside the pressure chamber is output through the main wheel hub 1, the oil pressure inside the pressure chamber is reduced, and the pressure plate 15 is separated from the separator 12 under the push of the spring group 16, and the separator 12 is separated from the friction plate 11, thereby stopping the transmission of the driving motor torque. In this way, the clutch action can be controlled by the pressure chamber and the main wheel hub 1, eliminating the balance chamber, simplifying the structure, reducing the number of parts, saving the installation space of the electric vehicle clutch, and improving the reliability and stability of the clutch.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents. The words "include" or "comprise" and the like used in the present invention mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The technical terms or scientific terms used in the present invention should have the common meanings understood by people with ordinary skills in the field to which the present invention belongs.

Claims

1. A clutch for controlling motor power, comprising a main hub (1), characterized in that: The main hub (1) is movably connected to an external friction plate (11) for connecting to a drive motor, the main hub (1) is movably connected to a separator (12) for cooperating with the friction plate (11) to transmit the torque of the friction plate (11), the main hub (1) is movably connected to a back plate (13) for cooperating with the separator (12) to transmit the torque of the friction plate (11), the main hub (1) is movably connected to an inner housing (14), the main hub (1) is movably connected to an external pressure plate (15) for controlling the contact between the separator (12) and the friction plate (11), the pressure plate (15) is movably connected to an external spring group (16), the main hub (1) is movably connected to an external piston (17) for cooperating with the pressure plate (15) to form a pressure chamber, and the piston (17) is movably connected to an external sealing lip (18) for sealing the contact portion between the pressure plate (15) and the piston (17); The inner side of the main wheel hub (1) is movably connected to a snap ring (2), the inner side of the main wheel hub (1) is movably connected to a sealing ring (21), the surface of the main wheel hub (1) is provided with an oil port 1 (22) for pressure oil to flow into the interior of the main wheel hub (1), the surface of the main wheel hub (1) is provided with an oil port 2 (23) for lubricating oil to flow into the interior of the main wheel hub (1), the surface of the main wheel hub (1) is provided with a lubricating oil outlet (24) for lubricating oil to flow out, the inner side of the main wheel hub (1) is fixedly connected to a sealing plug (25), and the interior of the main wheel hub (1) is fixedly connected to a steel ball (26); The main wheel hub (1) is connected to the gearbox shaft, the friction plate (11) is connected to the drive motor via an external spline, the friction plate (11) and the separator (12) are positioned parallel and spaced correspondingly, and the separator (12) is connected to the inner housing (14) via a spline; The pressure plate (15) is parallel to and corresponds to the position of the separator (12), the back plate (13) is corresponding to the position of the separator (12), and the inner shell (14) is fixedly connected to the main wheel hub (1).

2. A clutch for controlling motor power according to claim 1, characterized in that: The two ends of the spring group (16) are movably connected to the outside of the pressure plate (15) and the outside of the inner shell (14), respectively. A pressure chamber is formed between the pressure plate (15), the piston (17) and the sealing lip (18), and the main hub (1) is in communication with the inside of the pressure chamber.

3. The clutch for controlling motor power according to claim 1, characterized in that: The piston (17) and the main hub (1) are connected in a position-limiting manner via a clamping ring (2), and the contact portion between the piston (17) and the main hub (1) is sealed by a sealing ring (21).

4. The clutch for controlling motor power according to claim 1, characterized in that: The oil port 1 (22) corresponds to the position of the pressure oil passage of the main wheel hub (1) and the specifications thereof match, and the oil port 2 (23) corresponds to the position of the lubricating oil passage of the main wheel hub (1) and the specifications thereof match.

5. The clutch for controlling motor power according to claim 1, characterized in that: The lubricating oil outlet (24) corresponds to the position of the inner housing (14), the sealing plug (25) corresponds to the position of the main wheel hub (1) and the specifications thereof match, and the steel ball (26) corresponds to the position of the main wheel hub (1) and the specifications thereof match.

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