Please select the most similar patent number from A, B, C and D. Which number is?
A driving device (100) for a vehicle sunroof, comprising a motor (10), a transmission mechanism connected to the motor (10), and an output shaft (30) that rotates when driven by the transmission mechanism. The periphery of the output end of the output shaft (30) is integrally provided with multiple teeth (31); the multiple teeth (31) are used to drive a sunroof to move back and forth; a through hole (50) running through the output shaft (30) in the axial direction is provided in the output shaft (30); the through hole (50) comprises a first recess hole (51), a middle hole (52), and a second recess hole (53) that are communicated in sequence; the first recess hole (51) is adjacent to the input end of the output shaft (30); the middle hole (52) is a non-circular hole; the second recess hole (53) is adjacent to the output end of the output shaft (30); the shapes and/or sizes of the second recess hole (53) and the middle hole (52) are different, and the lateral size of at least one of the first recess hole (51) and the second recess hole (53) is not less than the minimum lateral size of the middle hole (52); the output shaft (30) protrudes radially at a substantially central position to form an annular protrusion (54); the middle hole (52) is formed in the annular protrusion (54).
A: Disclosed is a humanoid robot intelligent motor apparatus, comprising a tail cover (10), a shell (20), a first drive motor and deceleration gear set (30), a second drive motor and deceleration gear set (40), a first angle sensor (50), a second angle sensor (60) and a control circuit (70). The first drive motor and deceleration gear set (30) comprises a first motor (31) and a first deceleration mechanism. The first motor (31) is engaged with an input gear (32) of the first deceleration mechanism. An output shaft (33) of the first deceleration mechanism outputs a first rotary power. The first angle sensor (50) is arranged at an output shaft of the first drive motor and deceleration gear set (30), and is used for sensing the first rotary power output by the corresponding output shaft (33). The second drive motor and deceleration gear set (40) comprises a second motor (41) and a second deceleration mechanism. The second motor (41) is engaged with an input gear (42) of the second deceleration mechanism. An output shaft (43) of the second deceleration mechanism outputs a second rotary power. A second angle sensor (60) is arranged at an output shaft of the second drive motor and deceleration gear set (40), and is used for sensing the second rotary power output by the corresponding output shaft (43). The motor apparatus has the capability of providing two degrees of freedom.
B: Disclosed is an electrically operated valve capable of quickly achieving reliable switching between multiple flow paths, the electrically operated valve comprising a driving mechanism, an executing mechanism and a valve body assembly, wherein the driving mechanism comprises a bushing (53) and an output shaft (51) located in the bushing (53), the executing mechanism comprises a valve stem (1) connected to the output shaft (51) and a valve core (2) connected to the valve stem (1), and the valve core (2) is provided with a first flow channel (21) and a second flow channel (24); the valve body assembly comprises a valve body (3) and a valve seat (4), the bushing (53) is fixed to the valve body assembly in a sealed manner and forms a space isolated from the outside, the output shaft (51) and a connecting portion between the valve stem (1) and the output shaft (51) are located in this space, the valve stem (1) is not connected to the outside, the valve body (3) has a cavity (31), four through holes (32) and a plug port (34), the through holes (32) and the plug port (34) are circumferentially distributed at intervals, the plug port (34) is provided between adjacent through holes (32), and the valve seat (4) is provided with communicating holes (41) in communication with the corresponding through holes (32); and the circumferentially adjacent through holes (32) are in communication in pairs by the flow channels of the valve core (2) respectively, and the vale stem (1) drives the valve core (2) to rotate so as to switch the two mutually communicating through holes (32) and cut off the two through holes (32) circumferentially adjacent to the plug port (34).
C: A spur-type vehicle tire energy recovery assembly comprises a hub (1), a tire (2), an output shaft (3), a transmission mechanism (5), and multiple energy acquisition devices (4). The output shaft (3) is rotatably connected to the hub (1), and the two are coaxially disposed. The energy acquisition devices (4) comprise a first gear (41) rotatably connected to the hub (1), and a rack (42) capable of sliding in a radial direction of the hub (1). The first gear (41) meshes with the rack (42), and one end of the rack (42) abuts an inner wall of the tire (2). The transmission mechanism (5) comprises a planetary gear set and a second gear (51). The planetary gear set comprises an outer teeth ring (52), a planetary gear (53), a planetary carrier (54), and a sun gear (55). The sun gear (55) is connected to the output shaft (3). The planetary carrier (54) is fixedly connected to the hub (1). Gear teeth (521) are disposed at the outer circumference of the outer teeth ring (52). The gear teeth (521) mesh with the second gear (51). The second gear (51) is fixedly connected to the first gear (41), and the two are coaxially disposed. The first gear (41) and the rack (42) of the energy acquisition devices (4) mesh to convert linear motion of compression and deformation of the tire (2) into rotational motion of the first gear (41), and then power of the multiple energy acquisition devices (4) is transmitted to the output shaft (3) via the transmission mechanism (5), thereby completing energy recovery from deformation of a tire (2).
D: A drive device, comprising a motor (10) and a gear box (20) connected to the motor. The gear box comprises a housing (30), a transmission mechanism (40) provided in the housing, and a cover plate (50) individually formed and assembled to the housing. The transmission mechanism comprises an output member (42). The output member at least partially protrudes from the top surface of the cover plate. A retaining wall (53) arranged opposite the output member is formed on the cover plate. A cable is arranged between the retaining wall and the output member, and is transmittingly engaged with the output member. Also disclosed is a vehicle sunroof.
Answer: D