Electromagnetic clutch and vehicle

Abstract

The embodiment of the utility model provides an electromagnetic clutch and a vehicle, and relates to the technical field of vehicle power equipment.The electromagnetic clutch comprises an input assembly, a first output assembly, a second output assembly and an output assembly, the output assembly comprises an output rotating shaft, and the output rotating shaft is arranged on one side of the input rotating shaft; the transmission assembly comprises a first gear, a second gear, a gear shaft sleeve, a first jaw disc and a second jaw disc, the first gear and the second gear are arranged on the output rotating shaft in a spaced mode, the gear shaft sleeve is fixedly connected with the output rotating shaft, and the first jaw disc and the second jaw disc are arranged on the gear shaft sleeve in a spaced mode. According to the embodiment of the invention, gear shifting control over the neutral gear, the first gear and the second gear can be achieved, switching of the three gears can be completed, the output rotating speed and torque range of the power device is larger, and the application range is wider.

Description

Technical Field

[0001] This application relates to the field of vehicle power equipment technology, and in particular to an electromagnetic clutch and a vehicle. Background Technology

[0002] In related technologies, the basic working principle of an electromagnetic clutch is as follows: when current acts on the electromagnetic coil, torque is generated between the stator and rotor under the combined action of electromagnetic and electrostatic forces. This torque causes the rotor to rotate, thereby realizing the transfer of kinetic energy. When the current is disconnected, the stator and rotor separate, and the output shaft stops working. New energy vehicles increasingly use dog-clutch electromagnetic clutches, which have advantages such as compact structure, high transmission efficiency, and low heat generation. However, traditional dog-clutch electromagnetic clutches can only achieve single-gear transmission changes through the engagement and disengagement of a single power transmission element; that is, there are only two positions: "neutral" and "first gear," and they cannot control two or more gear shifts. Furthermore, with the increasing output speed and torque of modern power units, single-gear dog-clutch clutches are limited and unsuitable for power units that require variations in output speed and torque. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a gear shifting control capable of realizing three gears, namely "neutral", "first gear" and "second gear", and capable of switching between the three gears, so that the output speed and torque range of the power unit is larger and the application range is wider.

[0004] One embodiment of this application provides an electromagnetic clutch, comprising:

[0005] An input component includes an input shaft and a first input gear and a second input gear spaced apart from the input shaft;

[0006] An output component includes an output shaft disposed on one side of the input shaft;

[0007] A transmission assembly includes a first gear, a second gear, a gear sleeve, a first toothed disc, and a second toothed disc. The first gear and the second gear are spaced apart on the output shaft. The gear sleeve is fixedly connected to the output shaft. The first toothed disc and the second toothed disc are spaced apart on the gear sleeve. At least one first sliding groove is provided on the outer periphery of the gear sleeve. The first sliding groove extends along the axial direction of the output shaft. Both the first toothed disc and the second toothed disc have a mating portion that slides with the first sliding groove. The first gear has a first engaging portion, the first toothed disc has a first biting portion for engaging with the first engaging portion, the second gear has a second engaging portion, and the second toothed disc has a second biting portion for engaging with the second engaging portion.

[0008] The driving component includes a push ring structure connected between the first tooth disc and the second tooth disc, the push ring structure being used to drive the first tooth disc and the second tooth disc to move simultaneously along the first groove.

[0009] Furthermore, the push ring structure has a first working position, a second working position, and a third working position. When the push ring structure is in the first working position, the first toothed disc engages with the first gear. When the push ring structure is in the second working position, the first toothed disc disengages from the first gear, and the second toothed disc disengages from the second gear. When the push ring structure is in the third working position, the second toothed disc engages with the second gear.

[0010] Furthermore, the outer wall of the output shaft is provided with at least one second sliding groove, the second sliding groove extends along the axial direction of the output shaft, and the gear sleeve is provided with a protrusion corresponding to the position of the second sliding groove, the protrusion being slidably connected to the second sliding groove.

[0011] Furthermore, the driving component includes an electromagnetic coil assembly, and the push ring structure includes an outer ring disposed between the first tooth disc and the second tooth disc. The outer ring is made of a magnetically conductive material, and the electromagnetic coil assembly is used to drive the outer ring to move, thereby driving the first tooth disc and the second tooth disc to move.

[0012] Furthermore, the push ring structure includes an inner ring, which is sleeved between the gear shaft sleeve and the outer ring. One end of the inner ring is connected to the first toothed disc, and the other end of the inner ring is connected to the second toothed disc. The inner ring is made of a magnetic shielding material.

[0013] Furthermore, the drive assembly includes a spacer ring, a spring, and a ball plunger. The outer wall of the gear sleeve is provided with a groove, one end of the gear sleeve has a protrusion structure, one end of the spring abuts against the protrusion structure, the other end of the spring is connected to the second toothed disc, the spacer ring is connected to the inner ring, the ball plunger is installed on the spacer ring, and the outer wall of the gear sleeve is provided with a groove for cooperating with the ball plunger.

[0014] Furthermore, the electromagnetic coil assembly includes a housing, a coil, and a cover plate. The housing has a groove with one end open, the coil is disposed in the groove, and the cover plate is disposed at the opening.

[0015] Furthermore, both the housing and the coil are annular in shape, and the electromagnetic coil assembly is fitted around the outer periphery of the outer ring.

[0016] Furthermore, the drive assembly also includes a retaining ring disposed on the gear shaft sleeve, the retaining ring being used to stop the first toothed disc.

[0017] Another embodiment of this application provides a vehicle including the electromagnetic clutch as described above.

[0018] As can be seen from the above technical solutions, the embodiments of this application have at least the following beneficial effects:

[0019] In the electromagnetic clutch provided in this application embodiment, the drive assembly can drive the first and second toothed discs to move axially along the output shaft. By changing the relative positions of the first and second toothed discs and the gear sleeve, the first engagement portion of the first gear can engage with the first meshing portion of the first toothed disc, or the second engagement portion of the second gear can engage with the second meshing portion of the second toothed disc, or the first engagement portion can disengage from the first meshing portion and the second engagement portion can disengage from the second meshing portion. Thus, shifting control of three gears—neutral, first gear, and second gear—can be achieved, and switching between the three gears can be completed, resulting in a wider range of output speed and torque for the power unit and a broader application range. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an electromagnetic clutch provided in one embodiment of this application;

[0022] Figure 2 A cross-sectional structural schematic diagram of an electromagnetic clutch provided in one embodiment of this application;

[0023] Figure 3 This is an exploded view of a portion of the structure of an electromagnetic clutch provided in one embodiment of this application;

[0024] Figure 4 This is an exploded view of a portion of the structure of an electromagnetic clutch provided in one embodiment of this application;

[0025] Figure 5 An exploded view of an electromagnetic coil assembly in an electromagnetic clutch provided in one embodiment of this application;

[0026] Figure 6 This is an exploded structural diagram of the push ring structure, the fixed distance ring, and the ball head plunger in an electromagnetic clutch provided in one embodiment of this application.

[0027] Figure 7 A schematic diagram showing the state of an electromagnetic clutch in neutral according to one embodiment of this application;

[0028] Figure 8 A schematic diagram showing the state of the electromagnetic clutch in first gear according to one embodiment of this application;

[0029] Figure 9 This is a schematic diagram of the electromagnetic clutch in second gear according to one embodiment of this application.

[0030] Figure label:

[0031] 110. Input shaft; 120. First input gear; 130. Second input gear;

[0032] 210. Output shaft;

[0033] 310, First gear; 311, First engagement part; 320, Second gear; 321, Second engagement part; 330, Gear bushing; 331, Protruding structure; 332, Slot; 333, Limiting groove; 340, First toothed disc; 350, Second toothed disc;

[0034] 400. Drive assembly; 410. Intermediate plate; 421. Housing; 422. Coil; 423. Cover plate; 424. Winding cloth; 425. Curing adhesive; 431. Inner ring; 432. Outer ring; 440. Spacer ring; 450. Spring; 460. Ball plunger; 470. Snap ring. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] like Figures 1 to 3 As shown, one embodiment of this application discloses an electromagnetic clutch, including an input component, an output component, a transmission component, and a drive component 400.

[0037] Specifically, the input component includes an input shaft 110 and a first input gear 120 and a second input gear 130 spaced apart from each other on the input shaft 110; the output component includes an output shaft 210, which is disposed on one side of the input shaft 110; the transmission component includes a first gear 310, a second gear 320, a gear sleeve 330, a first toothed disc 340, and a second toothed disc 350, with the first gear 310 and the second gear 320 spaced apart from each other on the output shaft 210, and the gear sleeve 330 fixedly connected to the output shaft 210. The first toothed disc 340 and the second toothed disc 350 are spaced apart on the gear sleeve 330. The outer periphery of the gear sleeve 330 is provided with at least one first sliding groove. The first sliding groove extends along the axial direction of the output shaft 210. The first toothed disc 340 and the second toothed disc 350 both have a mating part that slides with the first sliding groove. The drive assembly 400 includes a push ring structure connected between the first toothed disc 340 and the second toothed disc 350. The push ring structure is used to drive the first toothed disc 340 and the second toothed disc 350 to move simultaneously along the first sliding groove.

[0038] The first gear 310 has a first engagement portion 311, the first toothed disc 340 has a first engagement portion for engaging with the first engagement portion 311, the second gear 320 has a second engagement portion 321, and the second toothed disc 350 has a second engagement portion for engaging with the second engagement portion 321.

[0039] In the electromagnetic clutch provided in this embodiment, the drive assembly 400 can drive the first toothed disc 340 and the second toothed disc 350 to move axially along the output shaft 210, thereby changing the relative positions of the first toothed disc 340 and the second toothed disc 350 with the gear sleeve 330 in the axial direction of the output shaft 210. By changing the relative positions of the first toothed disc 340 and the second toothed disc 350 with the gear sleeve 330, the first engagement portion 311 of the first gear 310 can engage with the first meshing portion of the first toothed disc 340, or the second engagement portion 321 of the second gear 320 can engage with the second meshing portion of the second toothed disc 350, or the first engagement portion 311 can disengage from the first meshing portion and the second engagement portion 321 can disengage from the second meshing portion. In this way, shifting control of three gears—"neutral," "first gear," and "second gear"—can be realized, and switching between the three gears can be completed, resulting in a wider range of output speed and torque of the power unit and a wider range of applications.

[0040] In some embodiments of this application, the push ring structure has a first working position, a second working position, and a third working position. Specifically, when the push ring structure is in the first working position, the first toothed disc 340 is engaged with the first gear 310; when the push ring structure is in the second working position, the first toothed disc 340 is disengaged from the first gear 310, and the second toothed disc 350 is disengaged from the second gear 320; when the push ring structure is in the third working position, the first toothed disc 340 is disengaged from the first gear 310, but the second toothed disc 350 is engaged with the second gear 320.

[0041] It is worth understanding that when the push ring structure is in the first working position, see... Figure 2 and Figure 8 When the electromagnetic clutch is in first gear, the input shaft 110 transmits power to the first gear 310 through the first input gear 120. Then, the first gear 310 drives the first toothed disc 340 to rotate around the output shaft 210. During this process, the first engagement part 311 of the first gear 310 engages with the first meshing part of the first toothed disc 340, enabling the first gear 310 to drive the first toothed disc 340 to rotate. The first toothed disc 340 and the toothed sleeve 330 are relatively fixed in the circumferential direction, so the first toothed disc 340 can drive the toothed sleeve 330 to rotate. Since the toothed sleeve 330 is fixedly connected to the output shaft 210, the toothed sleeve 330 can drive the output shaft 210 to rotate. Thus, the power of the input shaft 110 can be transmitted to the output shaft 210.

[0042] Similarly, when the push ring structure is in the second working position, see... Figure 2 and Figure 7 When the electromagnetic clutch is in neutral, both the first gear 310 and the second gear 320 are rotating idly. Neither the first gear 310 nor the second gear 320 can drive the first toothed disc 340 or the second toothed disc 350 to rotate. Therefore, the power of the input shaft 110 cannot be transmitted to the output shaft 210.

[0043] When the push ring structure is in the third working position, see Figure 2 and Figure 9 When the electromagnetic clutch is in second gear, the input shaft 110 transmits power to the second gear 320 through the second input gear 130. Then, the second gear 320 drives the second toothed disc 350 to rotate around the output shaft 210. The second toothed disc 350 drives the gear sleeve 330 and the output shaft 210 to rotate.

[0044] It should be noted that the output shaft 210 can be directly connected to the outside to provide rotational driving force; the output shaft 210 can also be connected to other components through gears or other transmission structures to provide power, which is not limited here.

[0045] In some embodiments of this application, the outer wall of the gear sleeve 330 is provided with a plurality of first sliding grooves spaced apart in the circumferential direction. Correspondingly, the first gear 310 and the second gear 320 are each provided with a plurality of mating parts that cooperate with each of the first sliding grooves.

[0046] In practical applications, the first groove is presented as a spline groove, and the mating part of the first gear 310 and the second gear 320 is presented as a spline. The spline and the spline groove are mated, so that the first gear 310, the second gear 320 and the gear sleeve 330 can be relatively fixed in the circumferential direction. At the same time, the first gear 310 and the second gear 320 can both move along the axial direction of the gear sleeve 330.

[0047] In some embodiments of this application, the outer wall of the output shaft 210 is provided with at least one second slide groove, the second slide groove extends along the axial direction of the output shaft 210, and the gear sleeve 330 is provided with a protrusion corresponding to the position of the second slide groove, the protrusion being slidably connected to the second slide groove.

[0048] In one possible implementation, the second groove is a spline groove, and the gear sleeve 330 is provided with a spline that mates with the spline groove on the outer wall of the output shaft 210. This allows the gear sleeve 330 and the output shaft 210 to be relatively fixed in the circumferential direction. Furthermore, the axial positioning of the gear sleeve 330 and the output shaft 210 can be achieved by providing a step or a pin on the output shaft 210.

[0049] In some embodiments of this application, see Figure 2 The drive assembly 400 includes an electromagnetic coil assembly, and the push ring structure includes an outer ring 432, which is disposed between the first toothed disc 340 and the second toothed disc 350. The outer ring 432 is made of a magnetically conductive material. The electromagnetic coil assembly drives the outer ring 432 to move, thereby moving the first toothed disc 340 and the second toothed disc 350. In practical applications, when the electromagnetic coil assembly is energized, it can exert an electromagnetic force on the outer ring 432 to drive the outer ring 432 to move axially along the output shaft 210, thereby changing the position of the first toothed disc 340 and the second toothed disc 350, and thus realizing the switching between neutral, first gear, or second gear.

[0050] For some embodiments of this application, please refer to [link / reference]. Figure 2 As shown, the push ring structure includes an inner ring 431, which is sleeved between the gear shaft sleeve 330 and the outer ring 432. One end of the inner ring 431 is connected to the first toothed disc 340, and the other end of the inner ring 431 is connected to the second toothed disc 350. The inner ring 431 is made of magnetic shielding material.

[0051] In some embodiments of this application, see Figure 2 and Figure 4The drive assembly 400 includes a spacer ring 440, a spring 450, and a ball plunger 460. The outer wall of the gear sleeve 330 has a groove 332. One end of the gear sleeve 330 has a protrusion 331, one end of the spring 450 abuts against the protrusion 331, and the other end of the spring 450 is connected to a second toothed disc 350. The spacer ring 440 is connected to the inner ring 431, and the ball plunger 460 is mounted on the spacer ring 440. The outer wall of the gear sleeve 330 has a groove 332 for engaging with the ball plunger 460. By changing the current flowing through the electromagnetic coil assembly, the magnitude of the electromagnetic force on the outer ring 432 can be changed, thereby changing the compression degree of the spring 450, and thus changing the relative position of the first gear 310 and the second gear 320 in the axial direction of the output shaft 210.

[0052] In the above embodiment, the spring 450 exerts a spring force on the second toothed disc 350. When the electromagnetic coil assembly is not energized, the spring force of the spring 450 can push the first toothed disc 340 and the second toothed disc 350 towards the side closer to the first gear 310, thereby enabling the first engagement portion 311 of the first gear 310 to engage with the first meshing portion of the first toothed disc 340. At this time, the second toothed disc 350 is separated from the second gear 320. When a small current is applied to the electromagnetic coil assembly, the electromagnetic coil assembly pushes the outer ring 432 towards the side closer to the second gear 320. At this time, the second toothed disc 350 compresses the spring 450. However, since the electromagnetic force on the outer ring 432 is insufficient to engage the second toothed disc 350 with the second gear 320, the first toothed disc 340 is separated from the first gear 310, and the second toothed disc 350 is separated from the second gear 320. That is, the electromagnetic clutch is in neutral. When the current flowing through the electromagnetic coil assembly is large enough, the second toothed disc 350 abuts against the second gear 320, at which point the second engagement part 321 engages with the second meshing part.

[0053] In some embodiments of this application, see Figure 2 and Figure 5 The electromagnetic coil assembly includes a housing 421, a coil 422, and a cover plate 423. The housing 421 has a groove with one end open, the coil 422 is disposed in the groove, and the cover plate 423 is disposed at the opening.

[0054] In some embodiments of this application, both the housing 421 and the coil 422 are annular, and the electromagnetic coil assembly is sleeved on the outer periphery of the outer ring 432.

[0055] In the above embodiments, see Figure 5 The housing 421, coil 422 and cover plate 423 are all ring-shaped, and the three together form a ring-shaped electromagnetic coil assembly, which is fitted around the outer circumference of the outer ring 432.

[0056] Furthermore, coil 422 is made of enameled wire. A layer of winding cloth 424, including insulating cloth, is wound around the surface of the enameled wire.

[0057] In this embodiment, the electromagnetic coil assembly includes a curing adhesive 424. The curing adhesive 424 fixes the coil 422 and the automotive wiring harness connector wires into the groove of the housing 421. The end cap is placed in the groove of the housing 421 and fixed by pressing the edges of the housing 421. The drive assembly 400 includes an intermediate plate 410. During assembly, the intermediate plate 410 has a hollow area. The electromagnetic coil assembly is installed on the intermediate plate 410 and fixed with bolts to prevent the whole assembly from moving, thereby ensuring that the electromagnetic clutch does not shake and be damaged during transportation before being installed in the vehicle body.

[0058] In some embodiments of this application, the electromagnetic clutch further includes a position sensor for detecting the state of the clutch.

[0059] In some embodiments of this application, see Figure 2 and Figure 4 The drive assembly 400 also includes a retaining ring 470. The gear sleeve 330 is provided with a limiting groove 333. The retaining ring 470 is provided in the limiting groove 333. The retaining ring 470 is used to stop the first toothed disc 340 to prevent the first toothed disc 340 from disengaging from the gear sleeve 330.

[0060] Another embodiment of this application discloses a vehicle including the electromagnetic clutch as described above, which has all the technical effects of the aforementioned electromagnetic clutch, and will not be repeated here.

[0061] The electromagnetic clutch and automobile of this application are described in detail below with a specific embodiment. It should be noted that the following embodiment is merely an exemplary description and should not be construed as limiting the embodiments of this application.

[0062] See Figure 2 and Figure 7 As shown, after the car is powered on and performs a self-test, the position sensor detects the state of the electromagnetic clutch. When a small current is applied to the electromagnetic coil assembly, the electromagnetic force and the spring force are almost equal. The ball plunger 460 slides into the slot 332 on the outer wall of the gear sleeve 330 to achieve the locking function. The first toothed disc 340 does not engage with the first engagement part, and the second toothed disc 350 does not engage with the second engagement part. The push ring structure is in the middle position, realizing neutral control.

[0063] See Figure 2 and Figure 8As shown, the speed difference is controlled at 10~50rpm. When the electromagnetic coil assembly is de-energized, the spring load causes the first toothed disc 340 to move toward the first gear 310, breaking through the jamming force between the ball plunger 460 and the slot 332 and engaging the first toothed disc 340 with the first gear 310, thus achieving engagement of the right end of the electromagnetic clutch. At this time, the input shaft 110 transmits power through the first input gear 120, the first gear 310, the first toothed disc 340, and the gear sleeve 330, achieving first gear control.

[0064] See Figure 2 and Figure 9 As shown, the speed difference is controlled at 10~50rpm. When a large current is applied to the electromagnetic coil assembly, the electromagnetic force overcomes the spring load and causes the second toothed disc 350 to move to the left, and the second toothed disc 350 engages with the second gear 320, realizing the engagement of the left end of the clutch. At this time, the input shaft 110 transmits the power second gear control through the second input gear 130, the second gear 320, the second toothed disc 350, and the gear sleeve 330.

[0065] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0066] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0067] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0068] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0069] It should be understood that although the steps in the flowcharts of the accompanying drawings are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the flowcharts of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

Claims

1. An electromagnetic clutch, characterized in that, include: An input component includes an input shaft and a first input gear and a second input gear spaced apart from the input shaft; An output component includes an output shaft disposed on one side of the input shaft; A transmission assembly includes a first gear, a second gear, a gear sleeve, a first toothed disc, and a second toothed disc. The first gear and the second gear are spaced apart on the output shaft. The gear sleeve is fixedly connected to the output shaft. The first toothed disc and the second toothed disc are spaced apart on the gear sleeve. At least one first sliding groove is provided on the outer periphery of the gear sleeve. The first sliding groove extends along the axial direction of the output shaft. Both the first toothed disc and the second toothed disc have a mating portion that slides with the first sliding groove. The first gear has a first engaging portion, the first toothed disc has a first biting portion for engaging with the first engaging portion, the second gear has a second engaging portion, and the second toothed disc has a second biting portion for engaging with the second engaging portion. The driving component includes a push ring structure connected between the first tooth disc and the second tooth disc, the push ring structure being used to drive the first tooth disc and the second tooth disc to move simultaneously along the first groove.

2. The electromagnetic clutch according to claim 1, characterized in that, The push ring structure has a first working position, a second working position, and a third working position. When the push ring structure is in the first working position, the first toothed disc engages with the first gear. When the push ring structure is in the second working position, the first toothed disc disengages from the first gear, and the second toothed disc disengages from the second gear. When the push ring structure is in the third working position, the second toothed disc engages with the second gear.

3. The electromagnetic clutch according to claim 1 or 2, characterized in that, The outer wall of the output shaft is provided with at least one second slide groove, the second slide groove extends along the axial direction of the output shaft, and the gear sleeve is provided with a protrusion corresponding to the position of the second slide groove, the protrusion being slidably connected to the second slide groove.

4. The electromagnetic clutch according to claim 3, characterized in that, The driving component includes an electromagnetic coil assembly, and the push ring structure includes an outer ring disposed between the first tooth disc and the second tooth disc. The outer ring is made of a magnetically conductive material. The electromagnetic coil assembly drives the movement of the outer ring to move the first tooth disc and the second tooth disc.

5. The electromagnetic clutch according to claim 4, characterized in that, The push ring structure includes an inner ring, which is sleeved between the gear shaft sleeve and the outer ring. One end of the inner ring is connected to the first toothed disc, and the other end of the inner ring is connected to the second toothed disc. The inner ring is made of a magnetic shielding material.

6. The electromagnetic clutch according to claim 5, characterized in that, The drive assembly includes a spacer ring, a spring, and a ball plunger. The outer wall of the gear sleeve is provided with a groove. One end of the gear sleeve has a protrusion structure. One end of the spring abuts against the protrusion structure. The other end of the spring is connected to the second toothed disc. The spacer ring is connected to the inner ring. The ball plunger is installed on the spacer ring. The outer wall of the gear sleeve is provided with a groove for cooperating with the ball plunger.

7. The electromagnetic clutch according to claim 4, characterized in that, The electromagnetic coil assembly includes a housing, a coil, and a cover plate. The housing has a groove with one end open, the coil is disposed in the groove, and the cover plate is disposed at the opening.

8. The electromagnetic clutch according to claim 7, characterized in that, Both the housing and the coil are circular in shape, and the electromagnetic coil assembly is sleeved on the outer periphery of the outer ring.

9. The electromagnetic clutch according to claim 6, characterized in that, The drive assembly also includes a retaining ring disposed on the gear shaft sleeve, the retaining ring being used to stop the first tooth disc.

10. A vehicle, characterized in that, Including the electromagnetic clutch as described in any one of claims 1 to 9.

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