Electric drive device and electric sunroof, electric seat and vehicle having the same

Abstract

This invention discloses an electric drive device and an electric sunroof, electric seats, and a vehicle incorporating it. The electric drive device includes: a differential, a first output shaft, a second output shaft, a locking mechanism, a motor, and a switching mechanism. The first and second output shafts are respectively poweredly connected to the differential. The switching mechanism controls the locking mechanism to switch between a first locking state and a second locking state, allowing the motor to output power through either the first or second output shaft. According to the electric drive device of this invention, the switching mechanism controls the locking state of the locking mechanism, enabling the motor to drive either the first or second output shaft through the differential for power output. This allows for independent output from a single motor on two shafts, reducing the number of motors needed when multiple actuators need to be driven. This, in turn, helps reduce the cost, weight, and space occupied by the electric drive device, and improves the layout flexibility of the electric drive device.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically, to an electric drive unit and an electric sunroof, electric seats, and vehicle having the same. Background Technology

[0002] In related technologies, a large number of motors are used in components such as electric sunroofs and electric seats in vehicles to drive the corresponding actuators. Multiple motors occupy a lot of space, have high costs, and are not conducive to the lightweighting of the whole vehicle. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the prior art. Therefore, the first objective of the present invention is to provide an electric drive device capable of independent output from a single motor and dual shafts, thereby reducing the number of motors required.

[0004] The second objective of this invention is to provide an electric sunroof.

[0005] The third objective of this invention is to provide an electric seat.

[0006] The fourth objective of this invention is to provide a vehicle.

[0007] An electric drive device according to an embodiment of the present invention includes: a differential, a first output shaft and a second output shaft, the first output shaft and the second output shaft being electrically connected to the differential; a locking mechanism having a first locking state for locking the first output shaft and a second locking state for locking the second output shaft; a motor having an output shaft electrically connected to the differential; and a switching mechanism for controlling the locking mechanism to switch between the first locking state and the second locking state, so that the motor outputs power through the first output shaft or the second output shaft respectively.

[0008] According to the electric drive device of the present invention, the locking state of the locking mechanism is controlled by the switching mechanism, so that the motor can drive the first output shaft or the second output shaft to output power through the differential, thereby realizing independent output of a single motor and dual shafts. When multiple actuators need to be driven, the number of motors used can be reduced, which helps to reduce the cost, weight and space occupied of the electric drive device and improve the layout flexibility of the electric drive device.

[0009] According to some embodiments of the present invention, the electric drive device further includes: a power supply switching circuit, which is connected to the motor and is used to control the direction of the power supply current to the motor to switch so that the motor rotates forward or in reverse.

[0010] Furthermore, the power supply switching circuit is also connected to the switching mechanism to control the switching mechanism and change the locking state of the locking mechanism.

[0011] Further, the power supply switching circuit includes: a power supply; a first switch, wherein when the first switch is configured to be in the closed state, the power supply stops supplying power to the switching mechanism, so that the switching mechanism controls the locking mechanism to be in the first locking state and supplies power to the motor in the first power supply current direction, so that the motor rotates forward; a second switch, wherein when the second switch is configured to be in the closed state, the power supply stops supplying power to the switching mechanism, so that the switching mechanism controls the locking mechanism to be in the first locking state and supplies power to the motor in the second power supply current direction, so that the motor rotates in reverse; a third switch, wherein when the third switch is configured to be in the closed state, the power supply supplies power to the switching mechanism, so that the switching mechanism controls the locking mechanism to be in the second locking state and supplies power to the motor in the first power supply current direction, so that the motor rotates forward; and a fourth switch, wherein when the fourth switch is configured to be in the closed state, the power supply supplies power to the switching mechanism, so that the switching mechanism controls the locking mechanism to be in the second locking state and supplies power to the motor in the second power supply current direction, so that the motor rotates in reverse.

[0012] Furthermore, the first terminal of the first switch is connected to the negative terminal of the power supply, the second terminal of the first switch is connected to the positive terminal of the power supply, the third terminal of the first switch is connected to the negative input terminal of the motor, and the fourth terminal of the first switch is connected to the positive input terminal of the motor; the first terminal of the second switch is connected to the positive terminal of the power supply, the second terminal of the second switch is connected to the negative terminal of the power supply, the third terminal of the second switch is connected to the negative input terminal of the motor, and the fourth terminal of the second switch is connected to the fourth terminal of the first switch and then connected to the positive input terminal of the motor, and also connected to the first contact of the switching mechanism; The first terminal of the third switch is connected to the negative terminal of the power supply, the second terminal of the third switch is connected to the positive terminal of the power supply, the third terminal of the third switch is connected to the negative input terminal of the motor, and the fourth terminal of the third switch is connected to the second contact of the switching mechanism; the first terminal of the fourth switch is connected to the positive terminal of the power supply, the second terminal of the fourth switch is connected to the negative terminal of the power supply, the third terminal of the fourth switch is connected to the third terminal of the third switch and then connected to the second power supply terminal of the switching mechanism, and the fourth terminal of the fourth switch is connected to the fourth terminal of the third switch and then connected to the first power supply terminal of the switching mechanism.

[0013] According to some embodiments of the present invention, the locking mechanism includes: a first locking part, a second locking part, and a rotating locking part, wherein the first locking part is fixed to the first output shaft, the second locking part is fixed to the second output shaft, and the rotating locking part is adapted to lock into the first locking part or the second locking part.

[0014] Furthermore, the switching mechanism includes an electromagnet located outside the rotating locking part, and the electromagnet attracts the rotating locking part when energized.

[0015] To achieve the above objectives, a second aspect of the present invention provides an electric sunroof, including the electric drive device described above.

[0016] According to an embodiment of the present invention, the electric sunroof controls the locking state of the locking mechanism through a switching mechanism, so that the motor can drive the first output shaft or the second output shaft to output power through the differential, thereby realizing independent output of a single motor and dual shafts. This reduces the number of motors used when it is necessary to drive the opening and closing actuators of the electric sunroof, thereby helping to reduce the cost, weight and space occupied by the electric sunroof.

[0017] To achieve the above objectives, a third aspect of the present invention provides an electric seat, including the electric drive device described above.

[0018] According to an embodiment of the present invention, the electric seat controls the locking state of the locking mechanism through a switching mechanism, so that the motor can drive the first output shaft or the second output shaft through the differential to output power. This enables independent output of a single motor on two shafts. When it is necessary to drive the fore-and-aft adjustment mechanism, the height adjustment mechanism, the leg support mechanism, and the backrest angle mechanism of the electric seat, the number of motors used can be reduced, which helps to reduce the cost and weight of the electric seat and improve the space utilization rate inside the electric seat.

[0019] To achieve the above objectives, a fourth aspect of the present invention provides a vehicle including the electric drive device described above, or including the electric sunroof described above, or including the electric seat described above.

[0020] According to the vehicle of the present invention, the locking state of the locking mechanism is controlled by the switching mechanism, so that the motor can drive the first output shaft or the second output shaft to output power through the differential, thereby realizing independent output of a single motor and dual shafts. This reduces the number of motors used when multiple actuators need to be driven, thereby helping to reduce the cost and weight of the vehicle and improve the space utilization of the vehicle.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an electric drive device according to an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 Enlarged view at point A;

[0024] Figure 3 This is another schematic diagram of an electric drive device according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the electric drive device after the first switch is closed according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the electric drive device after the second switch is closed according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the electric drive device after the third switch is closed according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the electric drive device after the fourth switch is closed according to an embodiment of the present invention.

[0029] Figure label:

[0030] Differential 1, Driven gear 11, Driven gear 12, Planetary gear 13, First side gear 14, Second side gear 15, First output shaft 2, Second output shaft 3, Locking mechanism 4, First locking part 41, Second locking part 42, Rotary locking part 43, Rotating rod 431, Elastic element 432, Motor 5, Motor output shaft 51, Frame 6, Switching mechanism 7, First contact 71, Second contact 72, Electromagnet 73, First power supply terminal 731, Second power supply terminal 732, Power supply switching circuit 8, First switch 81, First terminal 81a of the first switch, Second terminal 81b of the first switch, First... The third terminal 81c of the switch, the fourth terminal 81d of the first switch, the second switch 82, the first terminal 82a of the second switch, the second terminal 82b of the second switch, the third terminal 82c of the second switch, the fourth terminal 82d of the second switch, the third switch 83, the first terminal 83a of the third switch, the second terminal 83b of the third switch, the third terminal 83c of the third switch, the fourth terminal 83d of the third switch, the fourth switch 84, the first terminal 84a of the fourth switch, the second terminal 84b of the fourth switch, the third terminal 84c of the fourth switch, the fourth terminal 84d of the fourth switch, the power supply 85, and the electric drive device 10. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of this invention, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] The following is combined with Figures 1-7 The electric drive device 10, an electric sunroof, an electric seat, and a vehicle having the electric drive device 10 according to embodiments of the present invention are described in detail.

[0035] Reference Figure 1 and Figure 7 As shown, the electric drive unit 10 includes: a differential 1, a first output shaft 2, a second output shaft 3, a locking mechanism 4, a motor 5, and a switching mechanism 7, wherein:

[0036] The first output shaft 2 and the second output shaft 3 are respectively powered to the differential 1. The output shaft 51 of the motor is powered to the differential 1. It can be understood that the motor 5 is used to drive the differential 1, and through the differential 1, it drives the first output shaft 2 and / or the second output shaft 3 to rotate. In other words, the differential 1 can realize asynchronous rotation of the first output shaft 2 and the second output shaft 3.

[0037] The locking mechanism 4 has a first locking state that locks the first output shaft 2 and a second locking state that locks the second output shaft 3. The switching mechanism 7 is used to control the locking mechanism 4 to switch between the first locking state and the second locking state, so that the motor 5 can output power through the first output shaft 2 or the second output shaft 3 respectively. That is, when the switching mechanism 7 controls the locking mechanism 4 to be in the first locking state, the first output shaft 2 is locked and cannot rotate. At this time, the motor 5 can drive the second output shaft 3 to rotate independently through the differential 1. When the switching mechanism 7 controls the locking mechanism 4 to be in the second locking state, the second output shaft 3 is locked and cannot rotate. At this time, the motor 5 can drive the first output shaft 2 to rotate independently through the differential 1.

[0038] Therefore, according to the electric drive device 10 of the present invention, the locking state of the locking mechanism 4 is controlled by the switching mechanism 7, so that the motor 5 can drive the first output shaft 2 or the second output shaft 3 through the differential 1 to output power, thereby realizing independent output of a single motor and dual shafts. When multiple actuators need to be driven, the number of motors 5 used can be reduced, which helps to reduce the cost, weight and space occupied by the electric drive device 10 and improve the layout flexibility of the electric drive device 10.

[0039] In some embodiments of the present invention, reference is made to... Figures 1-7 As shown, the electric drive device 10 further includes a power supply switching circuit 8, which is connected to the motor 5 and is used to control the direction of the power supply current to the motor 5 to switch between forward and reverse rotation. It can be understood that the motor 5 has a positive input terminal and a negative input terminal. When the power supply current flows into the positive input terminal and out of the negative input terminal, the output shaft 51 of the motor rotates forward. When the power supply current flows into the negative input terminal and out of the positive input terminal, the output shaft 51 of the motor rotates in reverse. Optionally, the motor 5 is a permanent magnet DC motor.

[0040] When the switching mechanism 7 controls the locking mechanism 4 to be in the first locking state, if the motor output shaft 51 rotates forward, then the second output shaft 3 rotates forward; if the motor output shaft 51 rotates in reverse, then the second output shaft 3 rotates in reverse. When the switching mechanism 7 controls the locking mechanism 4 to be in the second locking state, if the motor output shaft 51 rotates forward, then the first output shaft 2 rotates forward; if the motor output shaft 51 rotates in reverse, then the first output shaft 2 rotates in reverse.

[0041] Therefore, the motor 5 can not only drive the first output shaft 2 or the second output shaft 3 to rotate through the differential 1, but also control the rotation direction of the first output shaft 2 and the rotation direction of the second output shaft 3, so as to increase the function of the electric drive device 10 and enhance the product competitiveness of the electric drive device 10.

[0042] In some embodiments of the present invention, reference is made to... Figures 1-7As shown, the power supply switching circuit 8 is also connected to the switching mechanism 7 to control the switching mechanism 7, thereby changing the locking state of the locking mechanism 4 and realizing the automatic control of the switching mechanism 7.

[0043] In some specific embodiments, reference is made to Figures 1-7 As shown, the switching mechanism 7 includes an electromagnet 73, which has a first power supply terminal 731 and a second power supply terminal 732. The locking mechanism 4 can be attracted by magnetic force. When the power supply switching circuit 8 does not supply power to the electromagnet 73, the locking mechanism 4 can be in the first locking state. When the power supply switching circuit 8 supplies power to the electromagnet 73, the electromagnet 73 can attract the locking mechanism 4 to change the locking mechanism 4 to the second locking state, thereby realizing the control of the switching mechanism 7 by the power supply switching circuit 8 to change the locking state of the locking mechanism 4.

[0044] In some embodiments of the present invention, reference is made to... Figures 1-7 As shown, the power supply switching circuit 8 includes: a power supply 85, a first switch 81, a second switch 82, a third switch 83, and a fourth switch 84, wherein:

[0045] When the first switch 81 is configured to be in the closed state, the power supply 85 stops supplying power to the switching mechanism 7, so that the switching mechanism 7 controls the locking mechanism 4 to be in the first locking state, and supplies power to the motor 5 in the first power supply current direction, so that the motor 5 rotates in the forward direction, thereby realizing that the motor 5 drives the second output shaft 3 to rotate in the forward direction through the differential 1.

[0046] When the second switch 82 is configured to be in the closed state, the power supply 85 stops supplying power to the switching mechanism 7, so that the switching mechanism 7 controls the locking mechanism 4 to be in the first locking state, and supplies power to the motor 5 in the second power supply current direction, so that the motor 5 reverses, thereby realizing that the motor 5 drives the second output shaft 3 to reverse through the differential 1.

[0047] When the third switch 83 is configured to be in the closed state, the power supply 85 supplies power to the switching mechanism 7 so that the switching mechanism 7 controls the locking mechanism 4 to be in the second locking state, and supplies power to the motor 5 in the first power supply current direction so that the motor 5 rotates in the forward direction, thereby realizing that the motor 5 drives the first output shaft 2 to rotate in the forward direction through the differential 1.

[0048] When the fourth switch 84 is configured to be in the closed state, the power supply 85 supplies power to the switching mechanism 7 so that the switching mechanism 7 controls the locking mechanism 4 to be in the second locking state, and supplies power to the motor 5 in the second power supply current direction so that the motor 5 reverses, thereby realizing that the motor 5 drives the first output shaft 2 to reverse through the differential 1.

[0049] It is understood that the electric drive device 10 has a first operating state where the second output shaft 3 rotates forward, a second operating state where the second output shaft 3 rotates in reverse, a third operating state where the first output shaft 2 rotates forward, and a fourth operating state where the first output shaft 2 rotates in reverse. The first operating state of the electric drive device 10 is when the first switch 81 is closed, the second operating state is when the second switch 82 is closed, the third operating state is when the third switch 83 is closed, and the fourth operating state is when the fourth switch 84 is closed. When all four switches (first, second, third, and fourth) are open, the electric drive device 10 does not operate, and neither the first output shaft 2 nor the second output shaft 3 rotates.

[0050] In some embodiments of the present invention, the first switch 81, the second switch 82, the third switch 83 and the fourth switch 84 may be interlocked, allowing only one of the switches to be closed at any given time, in order to prevent a short circuit in the power supply switching circuit 8.

[0051] Reference Figure 3 and Figure 4 As shown, the first terminal 81a of the first switch is connected to the negative terminal of the power supply 85, the second terminal 81b of the first switch is connected to the positive terminal of the power supply 85, the third terminal 81c of the first switch is connected to the negative input terminal of the motor 5, and the fourth terminal 81d of the first switch is connected to the positive input terminal of the motor 5. When the first switch 81 is closed, the switching mechanism 7 is not connected to the power supply 85, the locking mechanism 4 is in the first locking state, the positive terminal of the power supply 85 is connected to the positive input terminal of the motor 5, the negative terminal of the power supply 85 is connected to the negative input terminal of the motor 5, and the output shaft 51 of the motor rotates forward in the direction of the first power supply current, thereby realizing that the motor 5 drives the second output shaft 3 to rotate forward through the differential 1.

[0052] Reference Figure 3 and Figure 5 As shown, the first terminal 82a of the second switch is connected to the positive terminal of the power supply 85, the second terminal 82b of the second switch is connected to the negative terminal of the power supply 85, the third terminal 82c of the second switch is connected to the negative input terminal of the motor 5, and the fourth terminal 82d of the second switch is connected to the positive input terminal of the motor 5 after being connected to the fourth terminal 81d of the first switch, and is also connected to the first contact 71 of the switching mechanism 7. When the second switch 82 is closed, the switching mechanism 7 is not connected to the power supply 85, the locking mechanism 4 is in the first locking state, the positive terminal of the power supply 85 is connected to the negative input terminal of the motor 5, and the negative terminal of the power supply 85 is connected to the positive input terminal of the motor 5. The output shaft 51 of the motor reverses in the direction of the second power supply current, thereby realizing that the motor 5 drives the second output shaft 3 to reverse through the differential 1.

[0053] Reference Figure 3 and Figure 6 As shown, the first terminal 83a of the third switch is connected to the negative terminal of the power supply 85, the second terminal 83b of the third switch is connected to the positive terminal of the power supply 85, the third terminal 83c of the third switch is connected to the negative input terminal of the motor 5, and the fourth terminal 83d of the third switch is connected to the second contact 72 of the switching mechanism 7. When the third switch 83 is closed, the first power supply terminal 731 and the second power supply terminal 732 of the switching mechanism 7 are both connected to the power supply 85. The switching mechanism 7 can put the locking mechanism 4 in the second locking state. At this time, the first contact 71 and the second contact 72 of the switching mechanism 7 are in the contact and conduction state. The positive terminal of the power supply 85 is connected to the positive input terminal of the motor 5, and the negative terminal of the power supply 85 is connected to the negative input terminal of the motor 5. The output shaft 51 of the motor rotates forward in the direction of the first power supply current, thereby realizing that the motor 5 drives the first output shaft 2 to rotate forward through the differential 1.

[0054] Reference Figure 3 and Figure 7 As shown, the first terminal 84a of the fourth switch is connected to the positive terminal of the power supply 85, the second terminal 84b of the fourth switch is connected to the negative terminal of the power supply 85, the third terminal 84c of the fourth switch is connected to the third terminal 83c of the third switch and then connected to the second power supply terminal 732 of the switching mechanism 7, and the fourth terminal 84d of the fourth switch is connected to the fourth terminal 83d of the third switch and then connected to the first power supply terminal 731 of the switching mechanism 7. When the fourth switch 84 is in the closed state, the first power supply terminal 731 and the second power supply terminal 732 of the switching mechanism 7 are both connected to the power supply 85. The switching mechanism 7 can put the locking mechanism 4 in the second locking state. At this time, the first contact 71 and the second contact 72 of the switching mechanism 7 are in the contact and conduction state. The positive terminal of the power supply 85 is connected to the negative input terminal of the motor 5, and the negative terminal of the power supply 85 is connected to the positive input terminal of the motor 5. The output shaft 51 of the motor reverses in the direction of the second power supply current, thereby realizing that the motor 5 drives the first output shaft 2 to reverse through the differential 1.

[0055] In some embodiments of the present invention, reference is made to... Figures 1-3 As shown, the locking mechanism 4 includes a first locking part 41, a second locking part 42, and a rotating locking part 43. The first locking part 41 is fixed to the first output shaft 2, the second locking part 42 is fixed to the second output shaft 3, and the rotating locking part 43 is adapted to lock with either the first locking part 41 or the second locking part 42. When the rotating locking part 43 locks with the first locking part 41, the rotating locking part 43 locks the first output shaft 2 through the first locking part 41, and the locking mechanism 4 is in the first locking state. When the rotating locking part 43 locks with the second locking part 42, the rotating locking part 43 locks the second output shaft 3 through the second locking part 42, and the locking mechanism 4 is in the second locking state.

[0056] In some embodiments of the present invention, reference is made to... Figures 1-3 As shown, the switching mechanism 7 includes an electromagnet 73 located outside the rotating locking part 43. When energized, the electromagnet 73 attracts the rotating locking part 43. It should be noted that when the electromagnet 73 is not energized, one end of the rotating locking part 43 is locked to the first locking part 41, and the other end is separated from the second locking part 42, placing the locking mechanism 4 in the first locking state. When the electromagnet 73 is energized, the switching mechanism 7 can attract the rotating locking part 43 to rotate away from the first locking part 41 and towards the second locking part 42, causing one end of the rotating locking part 43 to separate from the first locking part 41 and the other end to lock to the second locking part 42, switching the locking mechanism 4 to the second locking state.

[0057] In some embodiments of the present invention, reference is made to... Figures 1-3 As shown, the rotating locking part 43 includes a rotating rod 431 and an elastic element 432. The rotating rod 431 can rotate in a first direction and in the opposite direction. When the rotating rod 431 rotates in the first direction, one end of the rotating rod 431 is close to the first locking part 41, and the other end of the rotating rod 431 is away from the second locking part 42. When the rotating rod 431 rotates in the opposite direction of the first direction, one end of the rotating rod 431 is away from the first locking part 41, and the other end of the rotating rod 431 is close to the second locking part 42. The elastic element 432 is configured to apply a first rotational force to the rotating rod 431 in a first direction. When the electromagnet 73 is energized, it applies a second rotational force to the rotating rod 431 in the opposite direction to the first direction, and the second rotational force is greater than the first rotational force. Therefore, when the electromagnet 73 is not energized, under the action of the first rotational force of the elastic element 432, one end of the rotating locking part 43 is locked with the first locking part 41, and the other end of the rotating locking part 43 is separated from the second locking part 42, and the locking mechanism 4 is in the first locking state. When the electromagnet 73 is energized, under the action of the second rotational force of the switching mechanism 7, one end of the rotating locking part 43 is separated from the first locking part 41, and the other end of the rotating locking part 43 is locked with the second locking part 42, and the locking mechanism 4 switches to the second locking state.

[0058] In some embodiments of the present invention, the first locking part 41 and the second locking part 42 are gears, one end of the rotating rod 431 is hinged with a first pawl suitable for locking and engaging with the first locking part 41, and the other end of the rotating rod 431 is hinged with a second pawl suitable for locking and engaging with the second locking part 42.

[0059] Reference Figures 1-3As shown, the switching mechanism 7 includes a first contact 71, a second contact 72, and an electromagnet 73. The first contact 71 is located at the end of the rotating rod 431 facing the electromagnet 73, and the second contact 72 is located at the end of the electromagnet 73 facing the rotating rod 431. When the locking mechanism 4 is in the first locking state, the first contact 71 and the second contact 72 are separated. When the locking mechanism 4 is in the second locking state, the first contact 71 and the second contact 72 are in contact and connected.

[0060] In some embodiments of the present invention, reference is made to... Figures 1-3 As shown, the differential 1 includes a drive gear 11, a driven gear 12, two planetary gears 13, a first side gear 14, and a second side gear 15. The output shaft 51 of the motor drives the drive gear 11 to rotate, the driven gear 12 meshes with the drive gear 11 for transmission, the two planetary gears 13 are connected to the driven gear 12, the first side gear 14 and the second side gear 15 are both meshed with the two planetary gears 13, the first output shaft 2 is connected to the first side gear 14, and the second output shaft 3 is connected to the second side gear 15, so that the motor 5 can drive the first output shaft 2 or the second output shaft 3 to output power through the differential 1.

[0061] In some embodiments of the present invention, reference is made to... Figures 1-3 As shown, the electric drive device 10 also includes a frame 6. The differential 1, locking mechanism 4, and switching mechanism 7 can all be connected to the frame 6. The output shaft 51, first output shaft 2, and second output shaft 3 of the motor can all pass through the frame 6. The rotating rod 431 is rotatably connected to the frame 6. One end of the elastic element 432 is connected to the frame 6, and the other end of the elastic element 432 is connected to the rotating rod 431. Optionally, the elastic element 432 can be a spring.

[0062] In some embodiments of the present invention, the first output shaft 2 can drive the first actuator to move, and the second output shaft 3 can drive the second actuator to move.

[0063] In addition, embodiments of the present invention also provide an electric sunroof, including the electric drive device 10 described in the above embodiments.

[0064] According to the electric sunroof of the present invention, the locking state of the locking mechanism 4 is controlled by the switching mechanism 7, so that the motor 5 can drive the first output shaft 2 or the second output shaft 3 through the differential 1 to output power. This enables the independent output of a single motor 5 on two shafts, thereby reducing the number of motors 5 used when it is necessary to drive the opening and closing actuators of the electric sunroof, which helps to reduce the cost, weight and space occupied by the electric sunroof.

[0065] Furthermore, embodiments of the present invention also provide an electric seat, including the electric drive device 10 described in the above embodiments.

[0066] According to an embodiment of the present invention, the electric seat controls the locking state of the locking mechanism 4 through the switching mechanism 7, so that the motor 5 can drive the first output shaft 2 or the second output shaft 3 through the differential 1 to output power. This enables the independent output of a single motor 5 on two shafts. When it is necessary to drive the fore-and-aft adjustment mechanism, the height adjustment mechanism, the leg support mechanism, and the backrest angle mechanism of the electric seat, the number of motors 5 can be reduced. This helps to reduce the cost and weight of the electric seat, improve the space utilization rate inside the electric seat, and the space saved by the electric drive device 10 can also improve the flexibility of the electric seat adjustment.

[0067] In addition, embodiments of the present invention also provide a vehicle that includes the electric drive unit 10 described above, or the vehicle includes the electric sunroof described above, or the vehicle includes the electric seat described above. It should be noted that the electric drive unit 10 can also be used for electric sunroofs, electric windshield wipers, electric power windows, etc. in vehicles.

[0068] According to the vehicle of the present invention, the locking state of the locking mechanism 4 is controlled by the switching mechanism 7, so that the motor 5 can drive the first output shaft 2 or the second output shaft 3 through the differential 1 to output power. This enables the independent output of a single motor 5 on two shafts, thereby reducing the number of motors 5 used when multiple actuators need to be driven, which helps to reduce the cost and weight of the vehicle and improve the space utilization of the vehicle.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0070] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electric drive device, characterized in that, include: A differential, a first output shaft, and a second output shaft, wherein the first output shaft and the second output shaft are respectively poweredly connected to the differential; A locking mechanism having a first locking state for locking the first output shaft and a second locking state for locking the second output shaft; An electric motor, the output shaft of which is poweredly connected to the differential; A switching mechanism is provided to control the locking mechanism to switch between a first locking state and a second locking state, so that the motor can output power through the first output shaft or the second output shaft respectively. A power supply switching circuit, which is connected to the motor, is used to control the direction of the power supply current to the motor to switch so that the motor rotates forward or in reverse. The power supply switching circuit is also connected to the switching mechanism and is used to control the switching mechanism to change the locking state of the locking mechanism. Specifically, the second output shaft is locked when the switching mechanism is energized, and the first output shaft is locked when the switching mechanism is not energized. The power supply switching circuit includes: Power supply; When the first switch is configured to be in the closed state, the power supply stops supplying power to the switching mechanism, so that the switching mechanism controls the locking mechanism to be in the first locking state, and supplies power to the motor in the first power supply current direction, so that the motor rotates in the forward direction; When the second switch is configured to be in the closed state, the power supply stops supplying power to the switching mechanism, so that the switching mechanism controls the locking mechanism to be in the first locking state, and supplies power to the motor in the second power supply current direction, so that the motor reverses. When the third switch is configured to be in the closed state, the power supply supplies power to the switching mechanism so that the switching mechanism controls the locking mechanism to be in the second locking state and supplies power to the motor in the first power supply current direction so that the motor rotates in the forward direction; When the fourth switch is configured to be in the closed state, the power supply supplies power to the switching mechanism so that the switching mechanism controls the locking mechanism to be in the second locking state and supplies power to the motor in the second power supply current direction so that the motor reverses. The locking mechanism includes: a first locking part, a second locking part, and a rotating locking part. The first locking part is fixed to the first output shaft, the second locking part is fixed to the second output shaft, and the rotating locking part is adapted to lock into the first locking part or the second locking part. The rotating locking part includes a rotating rod and an elastic element. The rotating rod can rotate in a first direction and in the opposite direction of the first direction. The rotating rod is rotatably connected to the frame. One end of the elastic element is connected to the frame, and the other end of the elastic element is connected to the rotating rod.

2. The electric drive device according to claim 1, characterized in that, The first terminal of the first switch is connected to the negative terminal of the power supply, the second terminal of the first switch is connected to the positive terminal of the power supply, the third terminal of the first switch is connected to the negative input terminal of the motor, and the fourth terminal of the first switch is connected to the positive input terminal of the motor. The first end of the second switch is connected to the positive terminal of the power supply, the second end of the second switch is connected to the negative terminal of the power supply, the third end of the second switch is connected to the negative input terminal of the motor, and the fourth end of the second switch is connected to the fourth end of the first switch and then connected to the positive input terminal of the motor, and connected to the first contact of the switching mechanism. The first terminal of the third switch is connected to the negative terminal of the power supply, the second terminal of the third switch is connected to the positive terminal of the power supply, the third terminal of the third switch is connected to the negative input terminal of the motor, and the fourth terminal of the third switch is connected to the second contact of the switching mechanism. The first end of the fourth switch is connected to the positive terminal of the power supply, the second end of the fourth switch is connected to the negative terminal of the power supply, the third end of the fourth switch is connected to the third end of the third switch and then connected to the second power supply terminal of the switching mechanism, and the fourth end of the fourth switch is connected to the fourth end of the third switch and then connected to the first power supply terminal of the switching mechanism.

3. The electric drive device according to claim 1, characterized in that, The switching mechanism includes an electromagnet located outside the rotating locking part, and the electromagnet attracts the rotating locking part when energized.

4. An electric sunroof, characterized in that, Includes the electric drive device according to any one of claims 1-3.

5. An electric seat, characterized in that, Includes the electric drive device according to any one of claims 1-3.

6. A vehicle, characterized in that, It includes the electric drive device according to any one of claims 1-3, or includes the electric sunroof according to claim 4, or includes the electric seat according to claim 5.

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