Electric vehicle clutch

Abstract

The present invention discloses an electric vehicle clutch, belonging to the technical field of clutches. An electric vehicle clutch comprises a fixing seat fixedly connected to a motor housing by screws, characterized in that it also comprises: a planetary gear brake assembly, the planetary gear brake assembly is arranged on the fixing seat, and the planetary gear brake assembly is connected to the motor output shaft; a brake worm wheel, the brake worm wheel is arranged on the outside of the fixing seat, and the brake worm wheel and the fixing seat are arranged coaxially; a brake jack, the brake jack is arranged on the fixing seat through a wire clamp ring; the present invention controls the brake jack to brake the gearbox by a worm gear, has the advantages of small impact on the gears during speed change, less oil pollution, and simple structure, can be applied to other speed change mechanisms and other industries, and at the same time, the movement of the worm is driven by buffering the brake jack, and then the gap is adjusted when the worm rotates forward and reversely, basically realizing zero-gap transmission of the worm and worm wheel, with high transmission accuracy and strong practicality.

Description

Technical Field

[0001] The present invention relates to the technical field of clutches, and in particular to an electric vehicle clutch. Background Art

[0002] The electric bicycle market is growing rapidly, and due to increasing demands for environmental protection, many European cities have begun to encourage the replacement of fuel vehicles with electric bicycles, which include ordinary two-wheeled bicycles and cargo bicycles that can be used to carry goods.

[0003] The clutch is installed between the engine and the transmission. It is an assembly directly connected to the engine in the vehicle transmission system. Usually the clutch is installed together with the flywheel assembly of the engine crankshaft. It is a component that cuts off and transmits power between the engine and the vehicle transmission system. Its function is to gradually engage the engine and the transmission to ensure a smooth start of the car; temporarily cut off the connection between the engine and the transmission to facilitate gear shifting and reduce the impact during gear shifting; it can play a separation role when the car is in emergency braking to prevent the transmission and other transmission systems from overloading, thereby playing a certain protective role.

[0004] The current speed change system on the market is not suitable for cargo bicycles. Since cargo bicycles have a large load, the chain is easily damaged by using a conventional derailleur. There are also internal speed hubs on the market to replace derailleurs, but since the output torque of electric power-assisted bicycles is relatively high, it is easy to damage the internal speed hub, causing the entire vehicle to fail, and there is also a problem of high cost. The current speed change mechanism controller controls the operation of the transmission through dry or wet friction plates, which is expensive, complex in structure, and not conducive to the application of small vehicles. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose an electric vehicle clutch.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An electric vehicle clutch comprises a fixing seat fixedly connected to a motor housing by screws, and further comprises:

[0008] A planetary gear brake assembly, wherein the planetary gear brake assembly is arranged on a fixed seat and connected to an output shaft of the motor;

[0009] A brake worm wheel, wherein the brake worm wheel is fixedly arranged on the outside of the fixing seat, and the brake worm wheel and the fixing seat are arranged coaxially;

[0010] A brake jack, wherein the brake jack is arranged on a fixed seat through a wire clamp ring, the wire clamp ring is used for torsional reset of the brake jack, and the two sides of the brake jack are respectively against the brake worm wheel and the planetary gear brake assembly;

[0011] A brake worm, wherein the brake worm is fixed on a fixed seat via a support, and the brake worm is meshingly connected with a brake worm wheel; and

[0012] Buffer gap mechanism; the buffer gap mechanism is arranged on the brake jack and is used to drive the brake worm to displace axially.

[0013] Preferably, one end of the brake jack is rotatably connected to the wire clamp ring via a rotating shaft, and the other end of the brake jack rotates around the rotating shaft as the center of the circle.

[0014] Preferably, a limiting frame is provided on the brake worm gear, a limiting slot is provided on the limiting frame, a clamping slot is provided on the planetary gear brake assembly, and the side of the brake jack away from the rotating shaft is movably connected in the limiting slot and the clamping slot respectively.

[0015] Preferably, the buffer gap mechanism includes a buffer mechanism and a gap mechanism, the buffer mechanism includes a first cavity and a second cavity opened on both sides of the brake jack, the inner walls of the first cavity and the second cavity are connected to a first elastic element, the other end of the first elastic element is connected to a first plug plate, and the end of the first plug plate away from the first elastic element is connected to a buffer plate through a connecting rod.

[0016] Preferably, the gap mechanism includes a sleeve rod arranged on a support, a moving rod is slidably connected inside the sleeve rod, the moving rod is fixedly connected to the brake worm, a third cavity is opened on the sleeve rod, a second plug plate is slidably connected to the inner wall of the third cavity, a push rod is connected to the second plug plate, an end of the push rod away from the second plug plate passes through the third cavity and resists against the moving rod, a second elastic element is sleeved on the outer wall of the push rod, two ends of the second elastic element are respectively connected to the second plug plate and the inner wall of the third cavity, the gap mechanism also includes a first pipe and a second pipe, the first pipe connects the first cavity and the third cavity, and the second pipe connects the second cavity and the third cavity.

[0017] Preferably, a moving groove is provided in the sleeve rod, a guide bar is provided in the moving groove, a guide groove matching with the guide bar is provided on the moving rod, and a third elastic element is provided between the moving rod and the moving groove.

[0018] Preferably, an oil inlet for connecting to the first pipeline is opened in the third cavity, and two guide rods are provided on the inner wall of the third cavity. The two guide rods are symmetrically arranged on both sides of the oil inlet, and a partition for blocking the oil inlet is slidably connected to the guide rods, and a fourth elastic element is also sleeved on the guide rods.

[0019] Preferably, a rubber sealing ring is bonded to the partition, and the rubber sealing ring movably abuts against the inner wall of the third cavity.

[0020] Preferably, a fourth cavity is provided in the partition, the end of the second pipe away from the second cavity passes through the third cavity and is connected to the fourth cavity, the inner wall of the fourth cavity is slidably connected with a third plug plate, a fifth elastic element is provided between the third plug plate and the inner wall of the fourth cavity, the end of the third plug plate away from the fifth elastic element is connected to a movable plate, and a through hole matching the oil inlet is provided on the movable plate.

[0021] Preferably, the space between the first plug plate and the second plug plate in the first cavity and the space between the first plug plate and the third plug plate in the second cavity are filled with hydraulic oil.

[0022] Compared with the prior art, the present invention provides an electric vehicle clutch having the following beneficial effects:

[0023] 1. The electric vehicle clutch uses a worm gear to control the braking jack. The entire control process is completed by rotating the worm gear. It can achieve the two purposes of locking and releasing as needed, so that it can rotate according to the needs of the planetary wheel. Compared with the traditional gearbox braking solution, it has the advantages of less impact on the gears due to speed change, less oil pollution, and simple structure.

[0024] 2. The electric vehicle clutch provides a buffer mechanism on both sides of the brake jack, so that the impact force received by the brake jack is weakened in the process of abutting against the clamping groove and the limit groove, thereby increasing the service life of the brake jack and the planetary gear brake assembly.

[0025] 3. The electric vehicle clutch has a reverse backlash when the worm and the worm wheel are meshed, and there is a reverse backlash during forward and reverse transmission. Through the operation of the buffer mechanism, the buffer mechanism can drive the worm to move through the gap mechanism during operation, and then adjust the gap when the worm rotates forward and reversely, basically realizing zero gap transmission of the worm and worm wheel, with high transmission accuracy and strong practicality.

[0026] 4. The electric vehicle clutch can be used not only in controllable gearboxes of two-wheeled vehicles, but also in other speed-changing mechanisms and other industries. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a schematic structural diagram of the theoretical locking of the planetary gear brake assembly of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the theoretical release of the planetary gear brake assembly of the present invention;

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 5 It is a schematic cross-sectional structure diagram of the brake jack of the present invention;

[0032] Figure 6 It is a schematic cross-sectional structure diagram of the sleeve rod of the present invention;

[0033] Figure 7 For the present invention Figure 6 A partial enlarged schematic diagram of the middle part;

[0034] Figure 8 It is a structural schematic diagram of the fixed seat peripheral servo steering engine of the present invention.

[0035] In the figure: 10, fixed seat; 11, limit groove; 20, planetary gear brake assembly; 21, clamping groove; 30, brake jack; 31, first cavity; 32, second cavity; 33, first elastic element; 34, first plug plate; 35, buffer plate; 40, wire clamp ring; 50, brake worm wheel; 60, brake worm; 70, support; 71, sleeve rod; 711, third cavity; 712, second plug plate; 713, push rod; 714, second elastic element; 715, movable groove; 716, guide strip; 717, third elastic element; 72, movable rod; 721, guide groove; 73, first pipeline; 74, second pipeline; 80, oil inlet; 81, guide rod; 82, partition; 83, fourth elastic element; 821, rubber sealing ring; 83, fourth elastic element; 84, fourth cavity; 841, third plug plate; 842, fifth elastic element; 843, movable plate; 8431, through hole. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. 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, and it can be the internal connection of two components; for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Example:

[0040] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , an electric vehicle clutch, comprising a fixing seat 10 fixedly connected to a motor housing by screws, and further comprising:

[0041] A planetary gear brake assembly 20, which is disposed on the fixed seat 10 and is connected to the motor output shaft;

[0042] A brake worm gear 50, which is fixed on the outer side of the fixing seat 10, and the brake worm gear 50 and the fixing seat 10 are coaxially arranged;

[0043] The brake jack 30 is arranged on the fixed seat 10 through a wire collar 40. The wire collar 40 is used for the torsion reset of the brake jack 30. The two sides of the brake jack 30 are respectively against the brake worm gear 50 and the planetary gear brake assembly 20;

[0044] A brake worm 60, wherein the brake worm 60 is fixed on the fixed seat 10 via a support 70, and the brake worm 60 is meshingly connected with the brake worm wheel 50; and

[0045] Buffer gap mechanism: The buffer gap mechanism is arranged on the brake jack 30 and is used to drive the brake worm 60 to displace axially.

[0046] Furthermore, one end of the brake jack 30 is rotatably connected to the wire clamp ring 40 via a rotating shaft, and the other end of the brake jack 30 rotates around the rotating shaft as the center of the circle.

[0047] Furthermore, a limit frame is provided on the brake worm gear 50, a limit slot 11 is provided on the limit frame, a clamping slot 21 is provided on the planetary gear brake assembly 20, and the side of the brake jack 30 away from the rotating shaft is movably connected in the limit slot 11 and the clamping slot 21 respectively.

[0048] Specifically, by using a worm gear to control the braking scheme of the brake jack 30, the entire control process only needs to be completed by rotating the worm, and when the brake jack 30 is in the limit groove 11 of the limit frame, the elastic force of the wire clamping ring 40 will push the brake jack 30 into the limit groove 11, and the planetary gear brake assembly 20 can rotate at this time, and the worm can be reversed to make the worm wheel run. During this process, the worm wheel drives the inner side wall of the limit frame to squeeze the brake jack 30, so that the brake jack 30 deflects with the rotating shaft as the center, so that the brake jack 30 is placed in the clamping groove 21, and the planetary gear brake assembly 20 is completely stuck, and the two purposes of locking and releasing can be achieved as needed, so that the planetary wheel can rotate as needed. Compared with the traditional gearbox braking scheme, it has the advantages of small impact on the gears due to speed change, less oil pollution, and simple structure.

[0049] Reference Figure 4 and Figure 5 As a preferred technical solution of the present invention, the buffer gap mechanism includes a buffer mechanism and a gap mechanism. The buffer mechanism includes a first cavity 31 and a second cavity 32 opened on both sides of the brake jack 30. The inner walls of the first cavity 31 and the second cavity 32 are connected with a first elastic element 33. The other end of the first elastic element 33 is connected with a first plug plate 34. The end of the first plug plate 34 away from the first elastic element 33 is connected with a buffer plate 35 through a connecting rod.

[0050] Specifically, when the brake jack 30 is respectively in the limiting groove 11 or the clamping groove 21, the protrusion in the limiting groove 11 or the clamping groove 21 will resist the buffer plate 35, so that the buffer plate 35 exerts force on the first plug plate 34 through the connecting rod, and the first elastic element 33 is compressed, so that the brake jack 30 is weakened in the process of resisting the clamping groove 21 and the limiting groove 11, thereby improving the service life of the brake jack 30, the worm gear and the planetary gear brake assembly 20.

[0051] Reference Figure 4 , Figure 5 , Figure 6 and Figure 7As a preferred technical solution of the present invention, the gap mechanism includes a sleeve rod 71 arranged on the support 70, a moving rod 72 is slidably connected in the sleeve rod 71, and the moving rod 72 is fixedly connected to the brake worm 60. A third cavity 711 is opened on the sleeve rod 71, and a second plug plate 712 is slidably connected to the inner wall of the third cavity 711. A push rod 713 is connected to the second plug plate 712. The end of the push rod 713 away from the second plug plate 712 passes through the third cavity 711 and movably resists the moving rod 72. A second elastic element 714 is sleeved on the outer wall of the push rod 713, and the two ends of the second elastic element 714 are respectively connected to the second plug plate 712 and the inner wall of the third cavity 711. The gap mechanism also includes a first pipe 73 and a second pipe 74. The first pipe 73 connects the first cavity 31 and the third cavity 711, and the second pipe 74 connects the second cavity 32 and the third cavity 711.

[0052] Furthermore, a moving groove 715 is defined in the sleeve rod 71 , a guide bar 716 is disposed in the moving groove 715 , a guide groove 721 matching with the guide bar 716 is defined on the moving rod 72 , and a third elastic element 717 is disposed between the moving rod 72 and the moving groove 715 .

[0053] Furthermore, an oil inlet 80 for connecting to the first pipeline 73 is opened in the third cavity 711, and two guide rods 81 are provided on the inner wall of the third cavity 711. The two guide rods 81 are symmetrically arranged on both sides of the oil inlet 80. A partition 82 for blocking the oil inlet 80 is slidably connected to the guide rod 81, and a fourth elastic element 83 is also sleeved on the guide rod 81.

[0054] Furthermore, a fourth cavity 84 is opened in the partition 82, and the end of the second pipe 74 away from the second cavity 32 passes through the third cavity 711 and is connected with the fourth cavity 84, and the inner wall of the fourth cavity 84 is slidably connected with a third plug plate 841, and a fifth elastic element 842 is arranged between the third plug plate 841 and the inner wall of the fourth cavity 84, and the end of the third plug plate 841 away from the fifth elastic element 842 is connected with a movable plate 843, and the movable plate 843 is provided with a through hole 8431 matching the oil inlet 80.

[0055] Furthermore, the space between the first plug plate 34 and the second plug plate 712 in the first cavity 31 and the space between the first plug plate 34 and the third plug plate 841 in the second cavity 32 are filled with hydraulic oil.

[0056] Specifically, when the brake jack 30 is in the clamping groove 21, the planetary gear brake assembly 20 is in a stuck state, the convex block in the clamping groove 21 exerts force on the buffer plate 35 in the first cavity 31, the first plug plate 34 is subjected to force and squeezes the first elastic element 33, the first elastic element 33 is compressed, the first plug plate 34 squeezes the hydraulic oil in the first cavity 31 to the third cavity 711 through the first pipe 73, the squeezed hydraulic oil exerts force on the partition 82, the partition 82 moves on the guide rod 81, the fourth elastic element 83 is compressed, so that the hydraulic oil can enter the third cavity 711 and exert force on the second plug plate 712, the second plug plate 712 squeezes the second elastic element 714 and exerts force on the moving rod 72 in the moving groove 715 through the push rod 713 The third elastic element 717 is stretched, and the moving rod 72 pushes the worm to move, preparing for the reverse rotation of the worm and thus releasing the stuck state of the planetary gear brake assembly 20, to avoid the reverse backlash during the forward and reverse transmission when the worm and the worm wheel are meshing, which affects the transmission accuracy of the worm wheel and the worm; when the stuck state of the planetary gear brake assembly 20 needs to be released, the sleeve rod 71 is rotated in the reverse direction so that the sleeve rod 71 drives the moving rod 72 to rotate through the guide bar 716, thereby driving the worm and the worm wheel to mesh, basically realizing zero-gap transmission of the worm and worm wheel, with high transmission accuracy. When the worm wheel rotates, it drives the limit frame to rotate. In this process, the inner wall of the limit frame is against the brake jack 30, and the brake jack 30 moves out of the clamping groove 21. The first elastic element 33 recovers and drives the first plug plate 34 to reset. The hydraulic oil in the first cavity 31 no longer exerts force on the partition plate 82. The partition plate 82 re-blocks the oil inlet 80 to prevent the hydraulic oil that has entered the third cavity 711 from flowing out. The hydraulic oil that has entered the third cavity 711 will continue to exert force on the second plug plate 712, so that the push rod 713 exerts force on the moving rod 72 to keep the worm and the worm gear in a tight meshing state. When the limit frame rotates a certain angle with the worm gear, the elastic force of the wire clamp ring 40 pushes the brake jack 30 from the clamping groove 21 to the limit groove 11. The convex block in the limit groove 11 exerts force on the buffer plate 35 in the second cavity 32, so that the first plug plate 34 in the second cavity 32 moves, thereby causing the second cavity 32 to The hydraulic oil is squeezed into the fourth cavity 84 through the second pipe 74, and exerts force on the third plug plate 841, so that the third plug plate 841 pushes the movable plate 843 to move. The movable plate 843 moves outward and makes the through hole 8431 cooperate with the oil inlet 80. At this time, the second elastic element 714 in the third cavity 711 recovers and pushes the second plug plate 712 to move, so that the hydraulic oil in the third cavity 711 is discharged from the through hole 8431 and the oil inlet 80 to the first cavity 31. At this time, the push rod 713 no longer exerts force on the moving rod 72. The moving rod 72 moves and resets under the action of the third elastic element 717, thereby causing the worm to move back and tightly fit with the worm wheel under the pulling force of the third elastic element 717, preparing for the next re-positioning of the planetary gear brake assembly 20.

[0057] Reference Figure 6 and Figure 7 As a preferred technical solution of the present invention, a rubber sealing ring 821 is bonded to the partition 82 , and the rubber sealing ring 821 movably abuts against the inner wall of the third cavity 711 , thereby improving the sealing effect of the partition 82 on the oil inlet 80 .

[0058] Reference Figure 8 As a preferred technical solution of the present invention, a servo actuator can be arranged on the fixing seat 10, and the servo actuator can replace the structure of motor + worm gear + worm, so that the output end of the servo actuator can limit and clamp the planetary gear brake assembly 20.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electric vehicle clutch, comprising a fixing seat (10) fixedly connected to a motor housing by screws, characterized in that: Also includes: A planetary gear brake assembly (20), wherein the planetary gear brake assembly (20) is disposed on a fixed seat (10), and the planetary gear brake assembly (20) is connected to an output shaft of a motor; A brake worm wheel (50), wherein the brake worm wheel (50) is arranged outside the fixing seat (10), and the brake worm wheel (50) and the fixing seat (10) are arranged coaxially; A brake jack (30), wherein the brake jack (30) is arranged on a fixed seat (10) via a wire clamp (40), wherein the wire clamp (40) is used for torsional reset of the brake jack (30), and two sides of the brake jack (30) are respectively movably opposed to a brake worm wheel (50) and a planetary gear brake assembly (20); a brake worm (60), wherein the brake worm (60) is fixed on the fixed seat (10) via a support (70), and the brake worm (60) is meshingly connected with the brake worm wheel (50); and A buffer gap mechanism; the buffer gap mechanism is arranged on the brake jack (30) and is used to drive the brake worm (60) to move axially, wherein the buffer gap mechanism includes a buffer mechanism and a gap mechanism, the gap mechanism includes a sleeve rod (71) arranged on a support (70), a moving rod (72) is slidably connected inside the sleeve rod (71), the moving rod (72) is fixedly connected to the brake worm (60), a third cavity (711) is opened on the sleeve rod (71), a second plug plate (712) is slidably connected to the inner wall of the third cavity (711), and a push rod (712) is connected to the second plug plate (712). 3), one end of the push rod (713) away from the second plug plate (712) passes through the third cavity (711) and movably contacts the moving rod (72), the outer wall of the push rod (713) is sleeved with a second elastic element (714), the two ends of the second elastic element (714) are respectively connected to the second plug plate (712) and the inner wall of the third cavity (711), the gap mechanism also includes a first pipe (73) and a second pipe (74), the first pipe (73) connects the first cavity (31) and the third cavity (711), and the second pipe (74) connects the second cavity (32) and the third cavity (711); When the planetary gear brake assembly (20) is in a stuck state, the second plug plate (712) exerts a force on the moving rod (72) through the push rod (713); when the stuck state is released, the sleeve rod (71) drives the moving rod (72) to rotate.

2. The electric vehicle clutch according to claim 1, characterized in that: One end of the brake jack (30) is rotatably connected to the wire clamp (40) via a rotating shaft, and the other end of the brake jack (30) rotates around the rotating shaft as a circle center.

3. The electric vehicle clutch according to claim 2, characterized in that: The brake worm wheel (50) is provided with a limit frame, the limit frame is provided with a limit slot (11), the planetary gear brake assembly (20) is provided with a clamping slot (21), and the side of the brake jack (30) away from the rotating shaft is movably connected in the limit slot (11) and the clamping slot (21).

4. The electric vehicle clutch according to claim 1, characterized in that: The buffer mechanism comprises a first cavity (31) and a second cavity (32) opened on both sides of the brake jack (30); the inner walls of the first cavity (31) and the second cavity (32) are both connected to a first elastic element (33); the other end of the first elastic element (33) is connected to a first plug plate (34); and the end of the first plug plate (34) away from the first elastic element (33) is connected to a buffer plate (35) via a connecting rod.

5. The electric vehicle clutch according to claim 1, characterized in that: The sleeve rod (71) is provided with a movable groove (715), the movable groove (715) is provided with a guide bar (716), the movable rod (72) is provided with a guide groove (721) matching with the guide bar (716), and a third elastic element (717) is provided between the movable rod (72) and the movable groove (715).

6. The electric vehicle clutch according to claim 1, characterized in that: An oil inlet (80) for connecting to the first pipeline (73) is provided in the third cavity (711), and two guide rods (81) are provided on the inner wall of the third cavity (711). The two guide rods (81) are symmetrically arranged on both sides of the oil inlet (80), and a partition (82) for blocking the oil inlet (80) is slidably connected to the guide rods (81), and a fourth elastic element (83) is also sleeved on the guide rods (81).

7. The electric vehicle clutch according to claim 6, characterized in that: A rubber sealing ring (821) is bonded to the partition plate (82), and the rubber sealing ring (821) movably abuts against the inner wall of the third cavity (711).

8. The electric vehicle clutch according to claim 6, characterized in that: A fourth cavity (84) is provided in the partition (82); an end of the second pipe (74) away from the second cavity (32) passes through the third cavity (711) and is connected to the fourth cavity (84); a third plug plate (841) is slidably connected to the inner wall of the fourth cavity (84); a fifth elastic element (842) is provided between the third plug plate (841) and the inner wall of the fourth cavity (84); an end of the third plug plate (841) away from the fifth elastic element (842) is connected to a movable plate (843); and a through hole (8431) is provided on the movable plate (843) that matches the oil inlet (80).

9. The electric vehicle clutch according to claim 6, characterized in that: The space between the first plug plate (34) and the second plug plate (712) in the first cavity (31) and the space between the first plug plate (34) and the third plug plate (841) in the second cavity (32) are filled with hydraulic oil.

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