Bidirectional electromagnetic clutch

Abstract

The utility model discloses a bidirectional electromagnetic clutch which comprises a first-gear gear, a second-gear gear, a rotating shaft component, a first combination component, a second combination component, a first electromagnetic coil, a second electromagnetic coil, a first elastic piece and a second elastic piece. Wherein the first-gear gear and the second-gear gear are rotationally arranged on the rotating shaft part, and the first combination part can slide relative to the rotating shaft part in the axial direction and cannot be connected to the rotating shaft part in the circumferential direction in a manner of rotating relative to the rotating shaft part; the second combination part can slide relative to the rotating shaft part in the axial direction and cannot rotate relative to the rotating shaft part in the circumferential direction to be connected to the rotating shaft part, and the first combination part is located between the first-gear gear and the second combination part. The second combining part is located between the second-gear gear and the first combining part. The gear shifting control of two gears can be realized, the switching of the two gears can be completed, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to a bidirectional electromagnetic clutch. Background Art

[0002] At present, clutches are mainly used to control the transmission and interruption of power in automobiles. Dry clutches and wet clutches are more common in traditional fuel vehicles, while in new energy vehicles, thanks to the precise control of the motor, the tooth-type electromagnetic clutch has become a better choice. The tooth-type electromagnetic clutch has the advantages of compact structure, high transmission efficiency and low heat generation in new energy vehicles. A tooth-type electromagnetic clutch is disclosed in the Chinese patent with publication number CN201057232Y. However, most of the existing tooth-type electromagnetic clutches can only control the engagement and disconnection of one gear in the car, but cannot control the shifting operation of two gears, so their use is limited. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a bidirectional electromagnetic clutch, which can realize the shift control of two gears, can complete the switching of two gears, and has a wider range of use.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a bidirectional electromagnetic clutch, which includes a first gear, a second gear, a shaft component, a first combination component, a second combination component, a first electromagnetic coil, a second electromagnetic coil, a first elastic member and a second elastic member;

[0005] The first gear and the second gear are rotatably arranged on the rotating shaft component respectively;

[0006] The first coupling component is connected to the shaft component so as to be slidable relative to the shaft component in the axial direction and not rotatable relative to the shaft component in the circumferential direction, the second coupling component is connected to the shaft component so as to be slidable relative to the shaft component in the axial direction and not rotatable relative to the shaft component in the circumferential direction, the first coupling component is located between the first gear and the second coupling component, and the second coupling component is located between the second gear and the first coupling component;

[0007] The first gear is provided with a first end face tooth on one end portion facing the first coupling component;

[0008] The second gear gear is provided with a second end face tooth on one end portion facing the second coupling member;

[0009] The first coupling component is provided with a first matching tooth arranged opposite to the first end face tooth;

[0010] The second coupling component is provided with a second matching tooth arranged opposite to the second end face tooth;

[0011] The first elastic member is connected to the first coupling component and is used to drive the first coupling component to move toward the first gear by elastic force so as to couple the first matching tooth with the first end face tooth;

[0012] The second elastic member is connected to the second coupling component and is used to drive the second coupling component to move toward the second gear by elastic force so as to couple the second matching tooth with the second end face tooth;

[0013] The first electromagnetic coil and the second electromagnetic coil are both installed in the rotating shaft component. The first electromagnetic coil is located on one side of the first combining component and is used to attract the first combining component to move away from the first gear when power is turned on, thereby disengaging the first mating tooth from the first end face tooth. The second electromagnetic coil is located on one side of the second combining component and is used to attract the second combining component to move away from the second gear when power is turned on, thereby disengaging the second mating tooth from the second end face tooth.

[0014] Further providing a specific structure of the rotating shaft component, the rotating shaft component comprises an intermediate shaft and a shaft sleeve;

[0015] The first gear and the second gear are rotatably arranged on the intermediate shaft respectively;

[0016] The shaft sleeve is connected to the intermediate shaft and is located between the first gear and the second gear;

[0017] The first coupling component is connected to the shaft sleeve so that it can slide relative to the shaft sleeve in the axial direction and cannot rotate relative to the shaft sleeve in the circumferential direction, and the second coupling component is connected to the shaft sleeve so that it can slide relative to the shaft sleeve in the axial direction and cannot rotate relative to the shaft sleeve in the circumferential direction;

[0018] The first electromagnetic coil and the second electromagnetic coil are both installed in the sleeve.

[0019] Furthermore, the bidirectional electromagnetic clutch further includes a first conductive slip ring connected to the first electromagnetic coil and used to supply power to the first electromagnetic coil, and a second conductive slip ring connected to the second electromagnetic coil and used to supply power to the second electromagnetic coil.

[0020] Further providing a specific structure of the first conductive slip ring and the second conductive slip ring, the first conductive slip ring comprising a first positive conductive ring, a first negative conductive ring, a first positive brush and a first negative brush;

[0021] The second conductive slip ring comprises a second positive conductive ring, a second negative conductive ring, a second positive brush and a second negative brush;

[0022] The first positive conductive ring, the first negative conductive ring, the second positive conductive ring and the second negative conductive ring are all connected to the sleeve;

[0023] The first electromagnetic coil is electrically connected to the first positive conductive ring and the first negative conductive ring respectively;

[0024] The second electromagnetic coil is electrically connected to the second positive conductive ring and the second negative conductive ring respectively;

[0025] The first positive brush is in sliding contact with the first positive conductive ring, the first negative brush is in sliding contact with the first negative conductive ring, the second positive brush is in sliding contact with the second positive conductive ring, and the second negative brush is in sliding contact with the second negative conductive ring.

[0026] Further, the first electromagnetic coil and the second electromagnetic coil are both located between the first combining component and the second combining component;

[0027] The first elastic member and the second elastic member are both installed in the shaft sleeve and are both located between the first combining component and the second combining component;

[0028] The first elastic member abuts against the first coupling component and is used to drive the first coupling component to move toward the first gear by elastic force so as to couple the first matching tooth with the first end face tooth;

[0029] The second elastic member abuts against the second coupling component and is used to drive the second coupling component to move toward the second gear by elastic force so as to couple the second matching tooth with the second end face tooth.

[0030] Further, the shaft sleeve is provided with a first mounting groove and a second mounting groove located between the first combining component and the second combining component;

[0031] The opening of the first installation groove faces the first combining component, and the first electromagnetic coil is installed in the first installation groove;

[0032] The opening of the second installation groove faces the second combining component, and the second electromagnetic coil is installed in the second installation groove.

[0033] Furthermore, the shaft sleeve is provided with a first mounting hole corresponding to the first elastic member and a second mounting hole corresponding to the second elastic member;

[0034] The first mounting hole and the second mounting hole are both located between the first combining component and the second combining component;

[0035] The opening of the first mounting hole faces the first combining component, the first elastic member is installed in the corresponding first mounting hole, one end of the first elastic member abuts against the shaft sleeve, and the other end of the first elastic member abuts against the first combining component;

[0036] The opening of the second mounting hole faces the second combining component. The second elastic member is installed in the corresponding second mounting hole. One end of the second elastic member abuts against the sleeve, and the other end of the second elastic member abuts against the second combining component.

[0037] A specific connection structure of the first combining component and the second combining component is further provided, wherein the first combining component is slidably connected to the shaft sleeve via a spline, and the second combining component is slidably connected to the shaft sleeve via a spline.

[0038] Further providing a specific structure of the first combining component and the second combining component, the first combining component comprises a first combining end plate and a first combining sleeve;

[0039] The first coupling sleeve is slidably connected to the shaft sleeve via a spline;

[0040] The first combining end plate is connected to the first combining sleeve;

[0041] The first mating tooth is provided on the first combining end plate;

[0042] The second combining component includes a second combining end plate and a second combining sleeve;

[0043] The second coupling sleeve is slidably connected to the shaft sleeve via a spline;

[0044] The second combining end plate is connected to the second combining sleeve;

[0045] The second mating teeth are arranged on the second combining end plate;

[0046] The first electromagnetic coil, the second electromagnetic coil, the first elastic member and the second elastic member are all located between the first combined end plate and the second combined end plate;

[0047] The first electromagnetic coil is located at one side of the first combined end plate and is used to attract the first combined end plate to move away from the first gear after being energized;

[0048] The first elastic member abuts against the first combined end plate and is used to drive the first combined end plate to move toward the first gear by elastic force;

[0049] The second electromagnetic coil is arranged at one side of the second combined end plate and is used to attract the second combined end plate to move away from the second gear after being energized;

[0050] The second elastic member abuts against the second combining end plate and is used to drive the second combining end plate to move toward the second gear by elastic force.

[0051] Further, a first external spline and a second external spline are provided on the outer periphery of the sleeve;

[0052] The first coupling sleeve is provided with a first internal spline, and the first internal spline is clearance-matched with the first external spline;

[0053] The second coupling sleeve is provided with a second internal spline, and the second internal spline is clearance-matched with the second external spline;

[0054] The first electromagnetic coil and the first elastic member are both arranged on the inner side of the first coupling sleeve;

[0055] The second electromagnetic coil and the second elastic member are both arranged on the inner side of the second combining sleeve.

[0056] After adopting the above technical solution, when the first electromagnetic coil and the second electromagnetic coil are both energized, the first electromagnetic coil attracts the first combination component to move to the left away from the first gear, and the second electromagnetic coil attracts the second combination component to move to the right away from the second gear, thereby disengaging the first matching tooth from the first end face tooth and disengaging the second matching tooth from the second end face tooth, and the neutral gear is now in operation. When the vehicle speed is within the first gear range, the second coil is energized and attracts the second combination component to the right, thereby disengaging the second matching tooth from the second end face tooth, and the first coil is de-energized, thereby causing the first elastic member to push the first combination component to move to the right toward the first gear, thereby causing the first matching tooth to engage with the first end face tooth, and the first gear can drive the first combination component to rotate at the same speed, and the first combination component then drives the shaft component to rotate at the same speed, thereby outputting power outward through the shaft component. When the vehicle speed increases to meet the conditions for switching to the second gear, the first coil is energized to generate suction and attract the first coupling component to move to the left so that the first matching tooth is disengaged from the first end face tooth, and the second coil is de-energized so that the second elastic member pushes the second coupling component to move to the left toward the second gear, thereby coupling the second matching tooth with the second end face tooth. At this time, the second gear can drive the second coupling component to rotate at the same speed, and the second coupling component can drive the shaft component to rotate at the same speed, thereby outputting power to the outside through the shaft component. The above structure realizes the shift control of two gears, can complete the switching of two gears, has more powerful functions, and has a wider range of applications. Among them, the first gear is used to mesh with the first external gear, and the second gear is used to mesh with the second external gear. The transmission ratio between the first gear and the first external gear is different from the transmission ratio between the second gear and the second external gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a structural schematic diagram of a bidirectional electromagnetic clutch of the utility model;

[0058] Figure 2 It is a cross-sectional view of the bidirectional electromagnetic clutch of the utility model;

[0059] Figure 3 It is a schematic structural diagram of the first combining component, the second combining component and the shaft sleeve of the utility model. DETAILED DESCRIPTION

[0060] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0061] like Figures 1 to 3 As shown, a bidirectional electromagnetic clutch comprises a first gear 1, a second gear 2, a rotating shaft component 3, a first combining component 4, a second combining component 5, a first electromagnetic coil 6, a second electromagnetic coil 7, a first elastic member 8 and a second elastic member 9;

[0062] The first gear 1 and the second gear 2 are rotatably disposed on the rotating shaft component 3 respectively;

[0063] The first coupling component 4 is connected to the rotating shaft component 3 so as to be slidable relative to the rotating shaft component 3 in the axial direction and not rotatable relative to the rotating shaft component 3 in the circumferential direction, the second coupling component 5 is connected to the rotating shaft component 3 so as to be slidable relative to the rotating shaft component 3 in the axial direction and not rotatable relative to the rotating shaft component 3 in the circumferential direction, the first coupling component 4 is located between the first gear 1 and the second coupling component 5, and the second coupling component 5 is located between the second gear 2 and the first coupling component 4;

[0064] The first gear 1 is provided with a first face tooth 10 at one end portion facing the first coupling component 4;

[0065] The second gear 2 is provided with a second end face tooth 11 on one end portion facing the second coupling member 5;

[0066] The first coupling component 4 is provided with a first matching tooth 12 arranged opposite to the first end face tooth 10;

[0067] The second coupling component 5 is provided with a second matching tooth 13 arranged opposite to the second end face tooth 11;

[0068] The first elastic member 8 is connected to the first coupling component 4 and is used to drive the first coupling component 4 to move toward the first gear 1 through elastic force so as to couple the first matching tooth 12 with the first end face tooth 10;

[0069] The second elastic member 9 is connected to the second coupling component 5 and is used to drive the second coupling component 5 to move toward the second gear 2 through elastic force so as to couple the second matching tooth 13 with the second end face tooth 11;

[0070] The first electromagnetic coil 6 and the second electromagnetic coil 7 are both installed in the rotating shaft component 3. The first electromagnetic coil 6 is located on one side of the first combining component 4 and is used to attract the first combining component 4 to move back to the first gear 1 when power is turned on, thereby disengaging the first matching tooth 12 from the first end face tooth 10. The second electromagnetic coil 7 is located on one side of the second combining component 5 and is used to attract the second combining component 5 to move back to the second gear 2 when power is turned on, thereby disengaging the second matching tooth 13 from the second end face tooth 11.

[0071] Specifically, when the first electromagnetic coil 6 and the second electromagnetic coil 7 are both energized, the first electromagnetic coil 6 attracts the first coupling component 4 to move to the left away from the first gear 1, and the second electromagnetic coil 7 attracts the second coupling component 5 to move to the right away from the second gear 2, thereby disengaging the first matching tooth 12 from the first end face tooth 10 and disengaging the second matching tooth 13 from the second end face tooth 11, and the vehicle is in neutral gear. When the vehicle speed is within the first gear range, the second coil is energized and attracts the second coupling component 5 to the right, thereby disengaging the second matching tooth 13 from the second end face tooth 11, and the first coil is de-energized, thereby causing the first elastic member 8 to push the first coupling component 4 to move to the right toward the first gear 1, thereby causing the first matching tooth 12 to engage with the first end face tooth 10, and the first gear 1 can drive the first coupling component 4 to rotate at the same speed, and the first coupling component 4 then drives the shaft component 3 to rotate at the same speed, thereby outputting power outward through the shaft component 3. When the vehicle speed increases to meet the conditions for switching to the second gear, the first coil is energized to generate suction and attract the first coupling component 4 to move to the left so that the first matching tooth 12 is disengaged from the first end face tooth 10, and the second coil is de-energized so that the second elastic member 9 pushes the second coupling component 5 to move to the left toward the second gear 2, so that the second matching tooth 13 is coupled with the second end face tooth 11. At this time, the second gear 2 can drive the second coupling component 5 to rotate at the same speed, and the second coupling component 5 can drive the shaft component 3 to rotate at the same speed, and then output power to the outside through the shaft component 3. The above structure realizes the shift control of two gears, can complete the switching of two gears, has more powerful functions, and has a wider range of applications. Among them, the first gear 1 is used to mesh with the first external gear, and the second gear 2 is used to mesh with the second external gear. The transmission ratio between the first gear 1 and the first external gear is different from the transmission ratio between the second gear 2 and the second external gear.

[0072] like Figures 1 to 3 As shown, the rotating shaft component 3 may include an intermediate shaft 14 and a sleeve 15;

[0073] The first gear gear 1 and the second gear gear 2 are rotatably disposed on the intermediate shaft 14 respectively;

[0074] The shaft sleeve 15 is connected to the intermediate shaft 14 and is located between the first gear 1 and the second gear 2;

[0075] The first combining component 4 is connected to the shaft sleeve 15 so that it can slide relative to the shaft sleeve 15 in the axial direction and cannot rotate relative to the shaft sleeve 15 in the circumferential direction, and the second combining component 5 is connected to the shaft sleeve 15 so that it can slide relative to the shaft sleeve 15 in the axial direction and cannot rotate relative to the shaft sleeve 15 in the circumferential direction;

[0076] The first electromagnetic coil 6 and the second electromagnetic coil 7 are both installed in the sleeve 15; in this embodiment, when the first electromagnetic coil 6 is powered off, the first elastic member 8 can drive the first combining component 4 to move rightward on the sleeve 15, thereby combining the first matching tooth 12 with the first end face tooth 10; when the first electromagnetic coil 6 is powered on, the first electromagnetic coil 6 can attract the first combining component 4 to move leftward on the sleeve 15, thereby disengaging the first matching tooth 12 from the first end face tooth 10; when the second electromagnetic coil 7 is powered off, the first elastic member can drive the second combining component 5 to move leftward on the sleeve 15, thereby combining the second matching tooth 13 with the second end face tooth 11; when the second electromagnetic coil 7 is powered on, the second electromagnetic coil 7 can attract the second combining component 5 to move rightward on the sleeve 15, thereby disengaging the second matching tooth 13 from the second end face tooth 11.

[0077] Specifically, the first gear 1 and the second gear 2 are rotatably connected to the intermediate shaft 14 through needle bearings. In this embodiment, the sleeve 15 can be sleeved on the intermediate shaft 14 and fixedly connected to the intermediate shaft 14; of course, in some embodiments, the sleeve 15 can also be integrated with the intermediate shaft 14.

[0078] like Figures 1 to 3 As shown, the bidirectional electromagnetic clutch may further include a first conductive slip ring connected to the first electromagnetic coil 6 and used to supply power to the first electromagnetic coil 6 , and a second conductive slip ring connected to the second electromagnetic coil 7 and used to supply power to the second electromagnetic coil 7 .

[0079] like Figures 1 to 3 As shown, the first conductive slip ring may include a first positive conductive ring 16, a first negative conductive ring 17, a first positive brush and a first negative brush;

[0080] The second conductive slip ring may include a second positive conductive ring 18, a second negative conductive ring 19, a second positive brush and a second negative brush;

[0081] The first positive conductive ring 16, the first negative conductive ring 17, the second positive conductive ring 18 and the second negative conductive ring 19 are all connected to the sleeve 15;

[0082] The first electromagnetic coil 6 is electrically connected to the first positive conductive ring 16 and the first negative conductive ring 17 respectively;

[0083] The second electromagnetic coil 7 is electrically connected to the second positive conductive ring 18 and the second negative conductive ring 19 respectively;

[0084] The first positive pole brush is in sliding contact with the first positive pole conductive ring 16, the first negative pole brush is in sliding contact with the first negative pole conductive ring 17, the second positive pole brush is in sliding contact with the second positive pole conductive ring 18, and the second negative pole brush is in sliding contact with the second negative pole conductive ring 19; in this embodiment, the first positive pole conductive ring 16, the first negative pole conductive ring 17, the second positive pole conductive ring 18 and the second negative pole conductive ring 19 are all connected to the outer wall of the sleeve 15.

[0085] like Figure 2 , 3 As shown, the first electromagnetic coil 6 and the second electromagnetic coil 7 are both located between the first combining component 4 and the second combining component 5;

[0086] The first elastic member 8 and the second elastic member 9 are both installed in the shaft sleeve 15 and are both located between the first combining component 4 and the second combining component 5;

[0087] The first elastic member 8 abuts against the first coupling component 4 and is used to drive the first coupling component 4 to move toward the first gear 1 through elastic force so as to couple the first matching tooth 12 with the first end face tooth 10;

[0088] The second elastic member 9 is against the second combining component 5 and is used to drive the second combining component 5 to move toward the second gear 2 through elastic force so that the second mating tooth 13 is combined with the second end face tooth 11; in this embodiment, the first electromagnetic coil 6 and the second electromagnetic coil 7 respectively have sufficient ampere-turns and can generate stable electromagnetic force.

[0089] like Figure 2 , 3 As shown, the shaft sleeve 15 is provided with a first mounting groove 20 and a second mounting groove 21 located between the first combining component 4 and the second combining component 5;

[0090] The opening of the first installation groove 20 faces the first combining component 4, and the first electromagnetic coil 6 is installed in the first installation groove 20;

[0091] The opening of the second mounting groove 21 faces the second combining component 5, and the second electromagnetic coil 7 is installed in the second mounting groove 21; in this embodiment, the first mounting groove 20 and the second mounting groove 21 are both annular grooves, and the first mounting groove 20 and the second mounting groove 21 are arranged back to back.

[0092] like Figure 2 , 3As shown, the shaft sleeve 15 is provided with a first mounting hole 22 corresponding to the first elastic member 8 and a second mounting hole 23 corresponding to the second elastic member 9;

[0093] The first mounting hole 22 and the second mounting hole 23 are both located between the first combining component 4 and the second combining component 5;

[0094] The opening of the first mounting hole 22 faces the first combining component 4, and the first elastic member 8 is installed in the corresponding first mounting hole 22, one end of the first elastic member 8 abuts against the shaft sleeve 15, and the other end of the first elastic member 8 abuts against the first combining component 4;

[0095] The opening of the second mounting hole 23 faces the second combining component 5, and the second elastic member 9 is mounted in the corresponding second mounting hole 23, one end of the second elastic member 9 abuts against the shaft sleeve 15, and the other end of the second elastic member 9 abuts against the second combining component 5; in this embodiment, the first elastic member 8 and the second elastic member 9 are evenly distributed in the circumferential direction in multiple numbers, and the first elastic member 8 can provide a uniform and effective thrust to move the first combining component 4 toward the first gear 1 so that the first matching tooth 12 and the first end face tooth 10 can be smoothly combined, and the second elastic member 9 can provide a uniform and effective thrust to move the second combining component 5 toward the second gear 2 so that the second matching tooth 13 and the second end face tooth 11 can be smoothly combined. In this embodiment, the first elastic member 8 corresponds to the first mounting hole 22 one by one, and the second elastic member 9 corresponds to the second mounting hole 23 one by one.

[0096] In this embodiment, the first electromagnetic coil 6, the second electromagnetic coil 7, the first elastic member 8 and the second elastic member 9 are all integrated into the shaft sleeve 15, which saves installation space, makes the structure simpler and more compact, and has higher reliability. After the first electromagnetic coil 6 and the second electromagnetic coil 7 are energized, they can generate an electromagnetic suction force greater than 100N, and the elastic force applied by all the first elastic members 8 on the first combining component 4 is less than 100N and greater than 70N, and the elastic force applied by all the second elastic members 9 on the second combining component 5 is less than 100N and greater than 70N. The first electromagnetic coil 6, the second electromagnetic coil 7, the first elastic member 8, the second elastic member 9 and the shaft sleeve 15 all rotate at the same speed as the intermediate shaft 14. Among them, the first elastic member 8 and the second elastic member 9 can both be springs.

[0097] like Figures 1 to 3As shown, the first combination component 4 can be slidably connected to the shaft sleeve 15 through a spline, and the second combination component 5 can be slidably connected to the shaft sleeve 15 through a spline, so that the first combination component 4 and the second combination component 5 can both slide relative to the shaft sleeve 15 in the axial direction but cannot rotate relative to the shaft sleeve 15 in the circumferential direction. Of course, in some embodiments, the first combination component 4 and the second combination component 5 can also be slidably connected to the shaft sleeve 15 through flat keys respectively.

[0098] Specifically, in the first gear, the first gear gear 1 drives the first coupling component 4 to rotate at the same speed through the combination of the first end face teeth 10 and the first matching teeth 12, and the first coupling component 4 drives the sleeve 15 to rotate at the same speed through the spline, thereby driving the intermediate shaft 14 to rotate at the same speed. In the second gear, the second gear gear 2 drives the second coupling component 5 to rotate at the same speed through the combination of the second end face teeth 11 and the second matching teeth 13, and the second coupling component 5 drives the sleeve 15 to rotate at the same speed through the spline, thereby driving the intermediate shaft 14 to rotate at the same speed.

[0099] like Figures 1 to 3 As shown, the first combining component 4 may include a first combining end plate 24 and a first combining sleeve 25;

[0100] The first coupling sleeve 25 is slidably connected to the shaft sleeve 15 via a spline;

[0101] The first combining end plate 24 is connected to the first combining sleeve 25;

[0102] The first mating teeth 12 are provided on the first combined end plate 24;

[0103] The second combining component 5 may include a second combining end plate 26 and a second combining sleeve 27;

[0104] The second coupling sleeve 27 is slidably connected to the shaft sleeve 15 via a spline;

[0105] The second combining end plate 26 is connected to the second combining sleeve 27;

[0106] The second mating teeth 13 are provided on the second combined end plate 26;

[0107] The first electromagnetic coil 6, the second electromagnetic coil 7, the first elastic member 8 and the second elastic member 9 are all located between the first combined end plate 24 and the second combined end plate 26;

[0108] The first electromagnetic coil 6 is located at one side of the first combined end plate 24 and is used to attract the first combined end plate 24 to move away from the first gear 1 after being energized;

[0109] The first elastic member 8 abuts against the first combined end plate 24 and is used to drive the first combined end plate 24 to move toward the first gear 1 through elastic force;

[0110] The second electromagnetic coil 7 is disposed on one side of the second combined end plate 26 and is used to attract the second combined end plate 26 to move away from the second gear 2 after being energized;

[0111] The second elastic member 9 abuts against the second coupling end plate 26 and is used to drive the second coupling end plate 26 to move toward the second gear 2 through elastic force; specifically, the first coupling end plate 24 and the first coupling sleeve 25 can be welded and connected or formed as one body, and the second coupling end plate 26 and the second coupling sleeve 27 can be welded and connected or formed as one body.

[0112] like Figures 1 to 3 As shown, the outer periphery of the sleeve 15 is provided with a first external spline 28 and a second external spline 29;

[0113] The first coupling sleeve 25 is provided with a first internal spline 30, and the first internal spline 30 is clearance-matched with the first external spline 28, so that the first coupling sleeve 25 is slidably connected to the shaft sleeve 15 through the spline;

[0114] The second coupling sleeve 27 is provided with a second internal spline 31, and the second internal spline 31 is clearance-matched with the second external spline 29, so that the second coupling sleeve 27 is slidably connected to the shaft sleeve 15 through the spline;

[0115] The first electromagnetic coil 6 and the first elastic member 8 are both arranged on the inner side of the first coupling sleeve 25;

[0116] The second electromagnetic coil 7 and the second elastic member 9 are both arranged on the inner side of the second coupling sleeve 27 .

[0117] Specifically, the intermediate shaft 14 is also connected to a transmission gear 32 .

[0118] In summary, in this embodiment, when the first electromagnetic coil 6 and the second electromagnetic coil 7 are both energized, the first electromagnetic coil 6 attracts the first combination component 4 to move to the left away from the first gear 1, and the second electromagnetic coil 7 attracts the second combination component 5 to move to the right away from the second gear 2, thereby disengaging the first matching tooth 12 from the first end face tooth 10 and disengaging the second matching tooth 13 from the second end face tooth 11, and the vehicle is in neutral gear. When the vehicle speed is within the first gear range, the second coil is energized and attracts the second combination component 5 to the right, thereby disengaging the second matching tooth 13 from the second end face tooth 11, and the first coil is de-energized, thereby causing the first elastic member 8 to push the first combination component 4 to move to the right toward the first gear 1, thereby causing the first matching tooth 12 to engage with the first end face tooth 10, and at this time the first gear 1 can drive the first combination component 4 to rotate at the same speed, and the first combination component 4 then drives the shaft component 3 to rotate at the same speed, thereby outputting power outward through the shaft component 3. When the vehicle speed increases to meet the conditions for switching to the second gear, the first coil is energized to generate suction and attract the first coupling component 4 to move to the left so that the first matching tooth 12 is disengaged from the first end face tooth 10, and the second coil is de-energized so that the second elastic member 9 pushes the second coupling component 5 to move to the left toward the second gear 2, so that the second matching tooth 13 is coupled with the second end face tooth 11. At this time, the second gear 2 can drive the second coupling component 5 to rotate at the same speed, and the second coupling component 5 can drive the shaft component 3 to rotate at the same speed, and then output power to the outside through the shaft component 3. The above structure realizes the shift control of two gears, can complete the switching of two gears, has more powerful functions, and has a wider range of applications. Among them, the first gear 1 is used to mesh with the first external gear, and the second gear 2 is used to mesh with the second external gear. The transmission ratio between the first gear 1 and the first external gear is different from the transmission ratio between the second gear 2 and the second external gear.

[0119] Of course, in some embodiments, the bidirectional electromagnetic clutch can also be used to control the driving mode of new energy vehicles; specifically, the first external gear is connected to the drive motor, and the second external gear is connected to the engine. When the first electromagnetic coil 6 is energized and the second electromagnetic coil 7 is de-energized, the first matching tooth 12 is disengaged from the first end face tooth 10, and the second matching tooth 13 is combined with the second end face tooth 11. At this time, the engine drives the shaft component 3 to rotate through the second external gear, the second gear 2 and the second combination component 5, and this is the engine direct drive mode. When the first electromagnetic coil 6 is de-energized and the second electromagnetic coil 7 is energized, the first matching tooth 12 is combined with the first end face tooth 10, and the second matching tooth 13 is disconnected from the second end face tooth 11. At this time, the drive motor drives the shaft component 3 to rotate through the first external gear, the first gear 1 and the first combination component 4, and this is the pure electric drive mode. When the first electromagnetic coil 6 and the second electromagnetic coil 7 are both powered off, the first matching tooth 12 is combined with the first end face tooth 10, and the second matching tooth 13 is combined with the second end face tooth 11. At this time, the driving motor drives the rotating shaft component 3 to rotate through the first external gear, the first gear gear 1 and the first combining component 4, and the engine drives the rotating shaft component 3 to rotate through the second external gear, the second gear gear 2 and the second combining component 5. At this time, it is a parallel drive mode.

[0120] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A bidirectional electromagnetic clutch, characterized in that: It comprises a first gear (1), a second gear (2), a rotating shaft component (3), a first combining component (4), a second combining component (5), a first electromagnetic coil (6), a second electromagnetic coil (7), a first elastic component (8) and a second elastic component (9); The first gear (1) and the second gear (2) are rotatably arranged on the rotating shaft component (3) respectively; The first coupling component (4) is connected to the rotating shaft component (3) so as to be slidable relative to the rotating shaft component (3) in the axial direction but not rotatable relative to the rotating shaft component (3) in the circumferential direction; the second coupling component (5) is connected to the rotating shaft component (3) so as to be slidable relative to the rotating shaft component (3) in the axial direction but not rotatable relative to the rotating shaft component (3) in the circumferential direction; the first coupling component (4) is located between the first gear (1) and the second coupling component (5); and the second coupling component (5) is located between the second gear (2) and the first coupling component (4); A first end face tooth (10) is provided on one end of the first gear (1) facing the first coupling component (4); A second end face tooth (11) is provided on one end of the second gear (2) facing the second coupling component (5); The first coupling component (4) is provided with a first matching tooth (12) arranged opposite to the first end face tooth (10); The second coupling component (5) is provided with a second matching tooth (13) arranged opposite to the second end face tooth (11); The first elastic member (8) is connected to the first coupling component (4) and is used to drive the first coupling component (4) to move toward the first gear (1) through elastic force, thereby coupling the first matching tooth (12) with the first end face tooth (10); The second elastic member (9) is connected to the second coupling component (5) and is used to drive the second coupling component (5) to move toward the second gear (2) through elastic force, thereby coupling the second matching tooth (13) with the second end face tooth (11); The first electromagnetic coil (6) and the second electromagnetic coil (7) are both installed in the rotating shaft component (3); the first electromagnetic coil (6) is located on one side of the first coupling component (4) and is used to attract the first coupling component (4) to move away from the first gear (1) when power is turned on, thereby causing the first matching tooth (12) to disengage from the first end face tooth (10); the second electromagnetic coil (7) is located on one side of the second coupling component (5) and is used to attract the second coupling component (5) to move away from the second gear (2) when power is turned on, thereby causing the second matching tooth (13) to disengage from the second end face tooth (11).

2. The bidirectional electromagnetic clutch according to claim 1, characterized in that: The rotating shaft component (3) comprises an intermediate shaft (14) and a shaft sleeve (15); The first gear (1) and the second gear (2) are rotatably arranged on the intermediate shaft (14) respectively; The shaft sleeve (15) is connected to the intermediate shaft (14) and is located between the first gear (1) and the second gear (2); The first combining component (4) is connected to the shaft sleeve (15) so as to be slidable in the axial direction relative to the shaft sleeve (15) but not rotatable in the circumferential direction relative to the shaft sleeve (15); and the second combining component (5) is connected to the shaft sleeve (15) so as to be slidable in the axial direction relative to the shaft sleeve (15) but not rotatable in the circumferential direction relative to the shaft sleeve (15); The first electromagnetic coil (6) and the second electromagnetic coil (7) are both installed in the shaft sleeve (15).

3. The bidirectional electromagnetic clutch according to claim 2, characterized in that: It also includes a first conductive slip ring connected to the first electromagnetic coil (6) and used to supply power to the first electromagnetic coil (6), and a second conductive slip ring connected to the second electromagnetic coil (7) and used to supply power to the second electromagnetic coil (7).

4. The bidirectional electromagnetic clutch according to claim 3, characterized in that: The first conductive slip ring comprises a first positive conductive ring (16), a first negative conductive ring (17), a first positive brush and a first negative brush; The second conductive slip ring comprises a second positive conductive ring (18), a second negative conductive ring (19), a second positive brush and a second negative brush; The first positive conductive ring (16), the first negative conductive ring (17), the second positive conductive ring (18) and the second negative conductive ring (19) are all connected to the shaft sleeve (15); The first electromagnetic coil (6) is electrically connected to the first positive conductive ring (16) and the first negative conductive ring (17) respectively; The second electromagnetic coil (7) is electrically connected to the second positive conductive ring (18) and the second negative conductive ring (19) respectively; The first positive electrode brush is in sliding contact with the first positive electrode conductive ring (16), the first negative electrode brush is in sliding contact with the first negative electrode conductive ring (17), the second positive electrode brush is in sliding contact with the second positive electrode conductive ring (18), and the second negative electrode brush is in sliding contact with the second negative electrode conductive ring (19).

5. The bidirectional electromagnetic clutch according to claim 2, characterized in that: The first electromagnetic coil (6) and the second electromagnetic coil (7) are both located between the first combining component (4) and the second combining component (5); The first elastic member (8) and the second elastic member (9) are both installed in the shaft sleeve (15) and are both located between the first combining component (4) and the second combining component (5); The first elastic member (8) abuts against the first coupling component (4) and is used to drive the first coupling component (4) to move toward the first gear (1) through elastic force, thereby coupling the first matching tooth (12) with the first end face tooth (10); The second elastic member (9) abuts against the second coupling component (5) and is used to drive the second coupling component (5) to move toward the second gear (2) through elastic force, thereby coupling the second matching tooth (13) with the second end face tooth (11).

6. The bidirectional electromagnetic clutch according to claim 5, characterized in that: The shaft sleeve (15) is provided with a first mounting groove (20) and a second mounting groove (21) located between the first combining component (4) and the second combining component (5); The opening of the first installation groove (20) faces the first combining component (4), and the first electromagnetic coil (6) is installed in the first installation groove (20); The opening of the second installation groove (21) faces the second combining component (5), and the second electromagnetic coil (7) is installed in the second installation groove (21).

7. The bidirectional electromagnetic clutch according to claim 5, characterized in that: The shaft sleeve (15) is provided with a first mounting hole (22) corresponding to the first elastic member (8) and a second mounting hole (23) corresponding to the second elastic member (9); The first mounting hole (22) and the second mounting hole (23) are both located between the first combining component (4) and the second combining component (5); The opening of the first mounting hole (22) faces the first combining component (4), the first elastic component (8) is installed in the corresponding first mounting hole (22), one end of the first elastic component (8) abuts against the shaft sleeve (15), and the other end of the first elastic component (8) abuts against the first combining component (4); The opening of the second mounting hole (23) faces the second combining component (5), and the second elastic component (9) is installed in the corresponding second mounting hole (23). One end of the second elastic component (9) abuts against the shaft sleeve (15), and the other end of the second elastic component (9) abuts against the second combining component (5).

8. The bidirectional electromagnetic clutch according to claim 5, characterized in that: The first combining component (4) is slidably connected to the shaft sleeve (15) via a spline, and the second combining component (5) is slidably connected to the shaft sleeve (15) via a spline.

9. The bidirectional electromagnetic clutch according to claim 8, characterized in that: The first combining component (4) comprises a first combining end plate (24) and a first combining sleeve (25); The first coupling sleeve (25) is slidably connected to the shaft sleeve (15) via a spline; The first combining end plate (24) is connected to the first combining sleeve (25); The first mating tooth (12) is arranged on the first combined end plate (24); The second combining component (5) comprises a second combining end plate (26) and a second combining sleeve (27); The second coupling sleeve (27) is slidably connected to the shaft sleeve (15) via a spline; The second combining end plate (26) is connected to the second combining sleeve (27); The second mating teeth (13) are arranged on the second combined end plate (26); The first electromagnetic coil (6), the second electromagnetic coil (7), the first elastic member (8) and the second elastic member (9) are all located between the first combined end plate (24) and the second combined end plate (26); The first electromagnetic coil (6) is located on one side of the first combined end plate (24) and is used to attract the first combined end plate (24) to move away from the first gear (1) after being energized; The first elastic member (8) abuts against the first combined end plate (24) and is used to drive the first combined end plate (24) to move toward the first gear (1) through elastic force; The second electromagnetic coil (7) is arranged on one side of the second combined end plate (26) and is used to attract the second combined end plate (26) to move away from the second gear (2) after being energized; The second elastic member (9) abuts against the second coupling end plate (26) and is used to drive the second coupling end plate (26) to move towards the second gear (2) through elastic force.

10. The bidirectional electromagnetic clutch according to claim 9, characterized in that: The outer periphery of the shaft sleeve (15) is provided with a first external spline (28) and a second external spline (29); The first coupling sleeve (25) is provided with a first internal spline (30), and the first internal spline (30) is clearance-matched with the first external spline (28); The second coupling sleeve (27) is provided with a second internal spline (31), and the second internal spline (31) is clearance-matched with the second external spline (29); The first electromagnetic coil (6) and the first elastic member (8) are both arranged on the inner side of the first coupling sleeve (25); The second electromagnetic coil (7) and the second elastic member (9) are both arranged on the inner side of the second coupling sleeve (27).

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