A vehicle-mounted screen motor with linkage matching Hall point and wire protection branching functions

Abstract

This invention discloses a vehicle-mounted screen motor with linkage matching Hall point and wire separation functions. It includes a power section and a transmission section connected axially. The power section includes a mounting assembly, a magnetic drive assembly, a shaft assembly, a cabling assembly, and a sheath separation assembly. The cabling assembly includes a PCB board and cabling; the sheath separation assembly includes a PCB bracket and a cable sheath. This invention achieves branching access and axial redundancy for multiple enameled wires, preventing the enameled wires from tangling and pulling during rotation, thus avoiding loose connections. It features multi-level linkage rotation adjustment and matching functions, completing Hall point and magnetic pole matching simultaneously with end cap assembly. The sheath isolation and cable separation prevent cabling from tangling or pulling on the shaft, ensuring the stability of the cable connection.

Description

Technical Field

[0001] This invention relates to the field of motors and power transmission, and in particular to a vehicle-mounted curtain motor with linkage matching Hall points and wire protection and branching functions. Background Technology

[0002] An electric motor, also known as a motor, is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Electric motors can be classified into DC motors and AC motors according to the type of power supply they use; and into brushless motors and brushed motors according to their structure and working principle. Brushless motors consist of a motor body and a driver, and are mechatronic products. Due to their advantages such as high efficiency, low noise, and long lifespan, brushless motors are widely used in many fields, such as cooling fans, blenders, industrial robot joint drives, robotic arm drives, medical equipment, humanoid robot joint actuators, and automotive control components, such as vehicle screens.

[0003] A car screen is a projection screen used in a vehicle. For example, an upgraded screen integrated into the roof uses a motor to control the raising and lowering of the projection screen, allowing it to expand and retract. In practical applications, such as during or after parking when the driver needs to rest, the car screen can be lowered. Its functionality requires quiet operation and no vibration. To meet these requirements, the driving device for a car screen needs to use a coreless Hall effect brushless motor. Traditional coreless Hall effect brushless motors have the following technical drawbacks: 1. After assembly, the Hall effect points and the rotor's permanent magnets are misaligned, causing the controller to fail to recognize the rotor's initial position and resulting in commutation timing errors. This necessitates manually twisting the Hall effect board (PCB) to calibrate the relative position of the Hall effect points and rotor, ensuring the commutation signal matches the rotor's magnetic poles. This method cannot accurately guarantee phase angle installation precision, leading to inefficient motor adjustment. 2. The enameled wires from the motor's spool need to be connected to the Hall plate along the axial direction. There are three enameled wires. In the traditional motor assembly process, the three enameled wires are directly connected to the Hall plate after being led out. Since the Hall brushless motor needs to rotate the Hall plate before starting to calibrate the relative position of the Hall and the rotor, the three enameled wires are easily entangled and loosened during the rotation of the Hall plate. 3. During the motor assembly process, after the spool is connected to the Hall plate through the enameled wires, the Hall plate needs to be connected to the external electric drive controller through the motor housing via ribbon cables. There are multiple ribbon cables (such as eight). Multiple ribbon cables are prone to entanglement and pulling during the rotation of the Hall plate, causing the connection to loosen. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a vehicle-mounted curtain motor that realizes the branching and axial redundancy of multiple enameled wires, avoids the enameled wires from tangling and pulling each other during rotation, has a multi-level linkage rotation adjustment and matching function, completes Hall point and magnetic pole matching while assembling the end cover, and uses a sheath for isolation and cable branching to avoid the cable from tangling and pulling each other around the shaft, thus ensuring the stability of the wire connection.

[0005] The technical solution adopted in this invention is as follows: A vehicle-mounted screen motor with linkage matching Hall point and wire protection splitting functions includes a power part and a transmission part connected along the axial direction. The power part outputs rotational power to the transmission part, and the transmission part outputs rotational power after speed change. The power part includes a mounting assembly, a magnetic drive assembly, a shaft assembly, a cable assembly, and a sheath separating assembly. The mounting assembly is a cylindrical structure with a transmission space inside, open at both ends. The magnetic drive assembly is disposed within the mounting assembly to form a closed electromagnetic field. The shaft assembly is disposed within the magnetic drive assembly, with both ends extending outwards and rotatably connected to the mounting assembly. The cable assembly is disposed axially at one end of the magnetic drive assembly and connected to one end of the mounting assembly via the sheath separating assembly. The cable assembly is connected to both the magnetic drive assembly and an external electric drive controller to electrically conduct the magnetic drive assembly and control its electromagnetic field to drive the shaft assembly to rotate. The transmission part is connected to the mounting assembly. At the other end, it is connected to the shaft assembly. The rotational power output by the shaft assembly is transmitted to the transmission part and then output through the transmission part. The ribbon cable assembly includes a PCB board and a ribbon cable. The sheath separation assembly includes a PCB bracket and a cable sheath. The PCB bracket is a ring-shaped structure and is placed on one end of the magnetic drive assembly along the axial direction. The PCB board is a circular plate structure and is stacked on the PCB bracket along the axial direction. The cable sheath is a circular plate structure and is stacked on the PCB board along the axial direction. The ribbon cable is connected to the PCB board and extends outward through the cable sheath and mounting assembly along the axial direction for connecting to an external electric drive controller. The PCB bracket, PCB board, and cable sheath are provided with a linkage adjustment component, which is used to rotate and adjust the cable sheath, PCB board, and PCB bracket in a linkage manner so that the Hall point on the PCB board matches the magnetic pole position of the shaft assembly. The cable sheath is provided with a cable sheath splitter component, which is used to isolate the wires of the magnetic drive assembly from the shaft assembly and to separate and lead out the wires of the magnetic drive assembly.

[0006] Preferably, the mounting assembly includes a housing, an end cap, and a first bearing. The housing is a cylindrical structure with a transmission space inside, and both ends of the housing are open. The end cap is located at one end of the housing to close the opening. Two first bearings are included: one first bearing is located inside the end cap and is used to connect one end of the shaft assembly; the other first bearing is located at the other end of the housing and is used to connect the other end of the shaft assembly. The transmission space includes a transmission mounting space and a connecting space, which are arranged axially. The transmission mounting space is located near one end of the housing, and its other end near the housing has a circular stepped surface, and a magnetic drive assembly and a shaft assembly are housed within it. The connecting space is located near the other end of the housing, and its other end near the housing also has a circular stepped surface, and the first bearing is housed within the connecting space.

[0007] Preferably, the magnetic drive assembly includes a stator core, a spool, enameled wire, and washers. The stator core is a cylindrical structure and is disposed within the transmission mounting space. The washers are annular sheets stacked axially on a circular stepped surface of the transmission mounting space to support the stator core; the inner side of the washers extends radially inward. The spool is a cylindrical structure disposed within the stator core, with its other end supported by the washers. A coil is wound within the wall of the spool, with the coil's end being enameled wire. The enameled wire extends axially outward toward one end of the spool and connects to the PCB board. A redundant length of enameled wire is provided between the spool and the PCB board to prevent the PCB board from pulling on the wire during rotation and causing loosening of the connection. A first wire hole is formed on one end wall of the stator core, corresponding axially to the enameled wire, allowing the wire to extend outward through the hole.

[0008] Preferably, the shaft assembly includes a magnetic steel ring, a rotating shaft, a balance block, and a first retaining pad. The magnetic steel ring is inserted into the wire cup along the axial direction and rotates freely within the wire cup. The rotating shaft is inserted into the magnetic steel ring and is interference-fitted to form an integral rotating structure. Both ends of the rotating shaft extend outward along the axial direction. One end passes through the cable assembly and extends into the end cover, and is rotatably connected to the end cover through a first bearing provided inside the end cover. The other end extends into the connection space of the housing and is rotatably connected to the housing through a first bearing in the connection space. The other end of the rotating shaft has rotating shaft teeth on its exterior for connecting the transmission part.

[0009] Preferably, the balance block includes at least two blocks, which are sleeved on the rotating shaft and located at the other end of the magnet ring; the first retaining pad is secured on the rotating shaft and located in the axial direction between the balance block and the first bearing; the balance block is used to adjust the axial position of the magnet ring and the rotating shaft, and the first retaining pad is used to lock and limit the position.

[0010] Preferably, the PCB support includes a support ring, a first limiting post, and a second limiting post. The support ring is a circular ring structure and is stacked on one end wall of the stator core along the axial direction. The first limiting post and the second limiting post are spaced apart on the support ring along the circumferential direction and extend along the axial direction, respectively.

[0011] Preferably, the PCB board includes a PCB board body, a first limiting groove, a second limiting groove, Hall effect points, and a branching groove. The PCB board body is a circular plate structure, and is stacked on a support ring along the axial direction. The first and second limiting grooves are spaced apart on the PCB board body along the circumferential direction and correspond to the first and second limiting posts respectively along the axial direction. The first and second limiting posts extend into the first and second limiting grooves along the axial direction and are radially limited and locked. Three Hall effect points are provided, each located on one side wall of the PCB board body. Three branching grooves are provided, each located on the side wall of the PCB board body along the circumferential direction. Three enameled wires on the spool pass axially through the three branching grooves and connect to the other side wall of the PCB board body.

[0012] Preferably, the cable sheath includes a sheath base, a third limiting groove, a third limiting post, a first arc-shaped groove, a second wire hole, and an isolation sleeve. The sheath base is a circular plate-like structure, stacked axially on the PCB board. A cylindrical isolation sleeve is provided on one side wall of the sheath base near the PCB board, axially close to the PCB board, creating a gap between the sheath base and the PCB board. The rotating shaft axially passes sequentially through the bracket ring, the PCB board, the isolation sleeve, and the sheath base before extending into the end cap. The isolation sleeve isolates the rotating shaft from the PCB board, preventing it from connecting to the PCB board. The cable and the pivot; the third limiting groove is opened on the side wall edge of the sheath seat and is correspondingly set with the second limiting post in the axial direction. After the second limiting post passes through the second limiting groove, it continues to extend into the third limiting groove in the axial direction; the third limiting post is set on the other side wall of the sheath seat and extends in the axial direction; the first arc-shaped groove is an arc-shaped groove structure, the first arc-shaped groove is opened on the sheath seat and axially penetrates the sheath seat; the second wire hole is opened on the sheath seat and axially penetrates the sheath seat; after one end of the cable is connected to the PCB board, it is threaded through the first arc-shaped groove and the second wire hole in groups.

[0013] Preferably, the end cover includes an end cover seat, an insert ring, and a fourth limiting groove. The end cover seat is a circular cover. The insert ring is an annular structure, disposed on the side wall of the end cover seat, and extends axially outward to be inserted into the end opening of the housing. A bearing groove is formed inside the insert ring for installing a first bearing. The rotating shaft passes through the PCB bracket, the PCB board, and the cable sheath, and then extends into the first bearing inside the insert ring. The fourth limiting groove is formed on the side wall of the insert ring and is axially aligned with the third limiting post. The third limiting post extends into the fourth limiting groove. When the end cover seat is rotated, the end cover seat drives the sheath seat to rotate through the fourth limiting groove and the third limiting post. The sheath seat drives the PCB bracket to rotate through the third limiting groove and the second limiting post. The PCB bracket drives the PCB board to rotate through the first limiting post and the first limiting groove.

[0014] Preferably, the end cap seat is provided with a second arc-shaped groove and a third wire hole, and the second arc-shaped groove and the third wire hole are respectively arranged in the axial direction corresponding to the first arc-shaped groove and the second wire hole. The cable passes through the first arc-shaped groove into the second arc-shaped groove and through the second wire hole into the third wire hole.

[0015] Preferably, the transmission part includes a housing, a transmission assembly, and an output assembly. The housing is a cylindrical structure with openings at both ends. An annular step is provided inside the end near the power unit for fitting onto the housing. At least two mounting holes are provided on the side wall of the end near the housing, and mounting screws are inserted into each hole radially to connect and fix the housing. An internal gear ring is provided on the inner wall of the housing. The transmission assembly is located inside the housing and connected to the power unit. The rotational power output from the power unit is transmitted to the transmission assembly for speed change. The output assembly is located at the other end of the housing and connected to the transmission assembly for outputting rotational power.

[0016] The beneficial effects of this invention are as follows:

[0017] This invention addresses the shortcomings and deficiencies of existing technologies by independently developing and designing a vehicle-mounted curtain motor that enables the branching and axial redundancy of multiple enameled wires, avoids the connection loosening due to the entanglement and pulling of the enameled wires during rotation, has a multi-level linkage rotation adjustment and matching function, completes the matching of Hall points and magnetic poles while assembling the end cap, and uses a sheath for isolation and cable branching to avoid the cable wrapping around the shaft or pulling each other, ensuring the stability of the wire connection.

[0018] This invention belongs to the field of motors and their transmissions, and aims to design a miniature power output device for vehicle-mounted screen applications. Specifically, the invention comprises a power unit and a transmission unit. The power unit outputs rotational power, and the transmission unit supplies the power output by the power unit with the opening or closing power of the vehicle-mounted screen after multi-stage speed regulation, thereby meeting the low-noise and low-vibration application requirements of vehicle-mounted screens. The power unit of this invention comprises a mounting assembly, a magnetic drive assembly, a shaft assembly, a cable assembly, and a sheath separating assembly. The mounting assembly provides the motor housing and mounting support structure. The magnetic drive assembly is disposed within the mounting assembly to form a closed magnetic field. The shaft assembly is disposed within the magnetic drive assembly and rotates under the magnetic force of the magnetic drive assembly to output rotational power. The cable assembly is disposed at one end of the magnetic drive assembly, with one end connected to the magnetic drive assembly and the other end connected to an external electric drive controller for electrically connecting the magnetic drive assembly and controlling its magnetic field. The sheath separating assembly is disposed between the cable assembly and the mounting assembly to separate the cables from the shaft assembly's cables, and also to separate and categorize multiple cables before exporting them, preventing tangling and pulling. The special feature is that the ribbon cable assembly of the present invention includes a PCB board and a ribbon cable, and the sheath separation assembly of the present invention includes a PCB support and a cable sheath; the bottom surface of the PCB board (Hall board) is provided with three Hall points, the top surface of the PCB board is connected to the enameled wire and the ribbon cable, and three wire-splitting grooves are opened along the circumferential direction on the side of the PCB board. During the assembly process, the three enameled wires led out from the end face of the spool extend from the bottom surface of the PCB board to its top surface along the axial direction through the three wire-splitting grooves and are then welded to the welding point on the top surface of the PCB. The three wire-splitting groove structure realizes the separate output of the three enameled wires, avoiding the situation where the three enameled wires are wrapped and pulled by each other during the rotation of the PCB board, resulting in loose connection. At the same time, axial redundancy of the enameled wire between the spool and the PCB board is reserved to avoid the situation where the wire is too short to rotate with the PCB board. Furthermore, the bottom surface of the sheath base of the present invention is provided with an isolation sleeve extending downward in the axial direction. During the assembly process, the support ring, PCB board and sheath base are stacked sequentially in the axial direction on the end walls of the spool and stator core. The end of the rotating shaft passes through the support ring, PCB board and sheath base in sequence and extends outward in the axial direction. The isolation sleeve at the bottom of the sheath base abuts against the side wall of the PCB board. The rotating shaft passes through the isolation sleeve and is isolated by the isolation sleeve, thereby avoiding direct contact between the rotating shaft and the enameled wire or ribbon cable at the top of the PCB board. This prevents the contact wear of the enameled wire or ribbon cable during high-speed rotation of the rotating shaft, which could lead to wire wear or wire entanglement.Furthermore, the PCB bracket of the present invention has a first limiting post and a second limiting post respectively provided on the bracket ring along the circumferential direction. The first limiting post includes two posts, and the second limiting post includes one post, and the axial length of the second limiting post is greater than the axial length of the first limiting post. The PCB board body has a first limiting groove and a second limiting groove respectively corresponding to the first and second limiting posts, so that the first and second limiting posts can be axially embedded. The side of the sheath seat has a third limiting groove corresponding to the second limiting post, and the top surface of the sheath seat has a third limiting post extending in the axial direction. The bottom surface of the end cover seat of the present invention has a downwardly extending insert ring for being embedded in the housing. The side wall of the insert ring has a fourth limiting groove corresponding to the third limiting post, and the third limiting post is axially embedded in the fourth limiting groove. During the assembly process, when the end cover and the housing are locked and fixed by a threaded connection, the... Locking is achieved by rotating the end cover. Simultaneously, the end cover rotates, driving the sheath seat to rotate in tandem via the fourth limiting groove and the third limiting post. The sheath seat, through the third limiting groove and the second limiting post, drives the lower support ring to rotate synchronously. The support ring, through the first limiting post and the first limiting groove, drives the PCB board to rotate synchronously. The aforementioned first limiting post, second limiting post, first limiting groove, second limiting groove, third limiting groove, third limiting post, and fourth limiting groove form a linkage adjustment component, achieving four-level linkage rotation adjustment. Experimental verification determined the threaded connection length between the housing and the end cover. While the rotating end cover locks into the housing, the Hall point adjustment of the PCB board is completed through four-level linkage rotation adjustment, simultaneously achieving Hall point matching with the rotor magnetic poles, reducing the time spent repeatedly adjusting and matching the Hall points, and improving assembly accuracy and efficiency. Furthermore, the sheath of the present invention is provided with a first arc-shaped groove and a second wire hole, and the end cap is provided with a corresponding second arc-shaped groove and a third wire hole. When multiple ribbon cables connected to the PCB board pass through the sheath, they are separated by the first arc-shaped groove and the second wire hole. Some cables pass through the first arc-shaped groove, and some ribbon cables pass through the second wire hole, realizing the separation of ribbon cables during the ribbon cable output process. This avoids the ribbon cables from getting tangled and pulled together during the rotation of the PCB board, ensuring the stability of the ribbon cable connection. The ribbon cables passing through the sheath extend to the outside of the motor through the second arc-shaped groove and the third wire hole on the end cap and connect to the external electric drive controller. The isolation sleeve, the first arc-shaped groove, and the second wire hole constitute the cable protection and separation component, realizing the isolation between the shaft and the ribbon cable or enameled wire and the separation of ribbon cables during the output process. Attached Figure Description

[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0020] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 This is one of the component disassembly structural diagrams of the present invention.

[0022] Figure 4 This is the second schematic diagram of the component disassembly structure of the present invention.

[0023] Figure 5 This is one of the component disassembly diagrams of the power unit of the present invention.

[0024] Figure 6 This is the second schematic diagram showing the component breakdown structure of the power unit of the present invention.

[0025] Figure 7 This is the third schematic diagram showing the component breakdown structure of the power unit of the present invention.

[0026] Figure 8 This is the fourth schematic diagram showing the component breakdown structure of the power unit of the present invention.

[0027] Figure 9 This is the fifth schematic diagram showing the component breakdown structure of the power unit of the present invention.

[0028] Figure 10 This is the sixth schematic diagram showing the component breakdown structure of the power unit of the present invention.

[0029] Figure 11 This is the seventh schematic diagram showing the component disassembly structure of the power unit of the present invention.

[0030] Figure 12 This is the eighth schematic diagram showing the component breakdown structure of the power unit of the present invention.

[0031] Figure 13 This is a schematic diagram of the component structure of the power unit of the present invention.

[0032] Figure 14 This is one of the three-dimensional structural schematic diagrams of the power unit of the present invention.

[0033] Figure 15 This is the second three-dimensional structural schematic diagram of the power unit of the present invention.

[0034] Figure 16 This is the ninth schematic diagram showing the component breakdown structure of the power unit of the present invention.

[0035] Figure 17 This is the tenth schematic diagram of the component disassembly structure of the power part of the present invention.

[0036] Figure 18 This is one of the component disassembly diagrams of the transmission part of the present invention.

[0037] Figure 19 This is the second schematic diagram showing the component breakdown structure of the transmission part of the present invention.

[0038] Figure 20This is the third schematic diagram showing the component breakdown structure of the transmission part of the present invention.

[0039] Figure 21 This is the fourth schematic diagram showing the component breakdown structure of the transmission part of the present invention.

[0040] Figure 22 This is one of the three-dimensional structural schematic diagrams of the transmission part of the present invention.

[0041] Figure 23 This is the second three-dimensional structural schematic diagram of the transmission part of the present invention.

[0042] Figure 24 This is a top view of the present invention.

[0043] Figure 25 for Figure 24 Sectional view of section II.

[0044] In the diagram: A, power unit; B, transmission unit;

[0045] 1. Housing; 2. Stator core; 3. Snap-in spool; 4. Enamelled wire; 5. Magnet ring; 6. Shaft; 7. Shaft gear; 8. Balance weight; 9. First retaining pad; 10. First bearing; 11. Washer; 12. PCB bracket; 13. PCB board; 14. Wire sleeve; 15. Ribbon cable; 16. Bearing pad; 17. End cap; C. Mounting hole; D. First wire hole;

[0046] 121. Bracket ring; 122. First limiting post; 123. Second limiting post;

[0047] 131. PCB board; 132. First limiting groove; 133. Second limiting groove; 134. Hall effect sensor; 135. Branching groove;

[0048] 141. Sheath base; 142. Third limiting groove; 143. Third limiting post; 144. First arc-shaped groove; 145. Second wire hole; 146. Isolation sleeve;

[0049] 171. End cap seat; 172. Insert ring; 173. Fourth limiting groove; 174. Third wire hole; E. Second arc groove; F. Bearing groove;

[0050] 18. Housing; 19. Internal gear ring; 20. Mounting screw; 21. Planetary support; 22. Planetary gear; 23. Transmission gear; 24. Planetary support plate; 25. Transmission seat; 26. Gear support shaft; 27. Second bearing; 28. Transmission support; 29. ​​Output shaft; 30. Second shim; G. Annular step. Detailed Implementation

[0051] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0052] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0053] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] Example 1: As Figures 1 to 17As shown, this invention proposes a vehicle-mounted screen motor with linkage matching Hall point and wire protection splitting functions, including a power part A and a transmission part B connected along the axial direction. The power part A outputs rotational power to the transmission part B, and the transmission part B outputs rotational power after speed change. The power part A includes a mounting assembly, a magnetic drive assembly, a shaft assembly, a cable assembly, and a sheath separating assembly. The mounting assembly is a cylindrical structure with a transmission space inside, open at both ends. The magnetic drive assembly is disposed within the mounting assembly to form a closed electromagnetic field. The shaft assembly is disposed within the magnetic drive assembly, with both ends extending out of the magnetic drive assembly and rotatably connected to the mounting assembly. The cable assembly is disposed axially at one end of the magnetic drive assembly and connected to one end of the mounting assembly via the sheath separating assembly. The cable assembly is connected to both the magnetic drive assembly and an external electric drive controller to electrically conduct the magnetic drive assembly and control its electromagnetic field to drive the shaft assembly to rotate. The transmission part B is connected to the other end of the mounting assembly and to the shaft assembly. The shaft assembly outputs rotational power... After the force is transmitted to the transmission part B, it is output through the transmission part B; the ribbon cable assembly includes a PCB board 13 and a ribbon cable 15; the sheath separation assembly includes a PCB support 12 and a cable sheath 14; wherein, the PCB support 12 is a ring-shaped structure, and the PCB support 12 is placed on one end of the magnetic drive assembly along the axial direction; the PCB board 13 is a circular board structure, and the PCB board 13 is stacked on the PCB support 12 along the axial direction; the cable sheath 14 is a circular board structure, and the cable sheath 14 is stacked on the PCB board 13 along the axial direction; the ribbon cable 15... 5 is connected to the PCB board 13 and extends outward along the axial direction through the cable guard 14 and the mounting assembly for connecting to an external electric drive controller; the PCB bracket 12, PCB board 13 and cable guard 14 are provided with linkage adjustment components, which are used to rotate and adjust the cable guard 14, PCB board 13 and PCB bracket 12 in a linkage manner so that the Hall point on the PCB board 13 matches the magnetic pole position of the shaft assembly; the cable guard 14 is provided with cable separation components, which are used to isolate the wires of the magnetic drive assembly from the shaft assembly and to separate and lead out the wires of the magnetic drive assembly.

[0055] The mounting assembly includes a housing 1, an end cover 17, and a first bearing 10. The housing 1 is a cylindrical structure with a transmission space inside. Both ends of the housing 1 are open. The end cover 17 is located at one end of the housing 1 to close the opening. There are two first bearings 10. One first bearing 10 is located inside the end cover 17 and is used to connect one end of the shaft assembly. The other first bearing 10 is located at the other end of the housing 1 and is used to connect the other end of the shaft assembly. The transmission space includes a transmission mounting space and a connection space, which are arranged axially. The transmission mounting space is located near one end of the housing 1 and has a circular stepped surface at the other end. A magnetic drive assembly and a shaft assembly are installed inside the transmission mounting space. The connection space is located near the other end of the housing 1 and has a circular stepped surface at the other end. The first bearing 10 is installed inside the connection space.

[0056] The magnetic drive assembly includes a stator core 2, a spool 3, enameled wire 4, and a washer 11. The stator core 2 is a cylindrical structure and is disposed within the transmission mounting space. The washer 11 is an annular sheet, stacked axially on a circular stepped surface of the transmission mounting space to support the stator core 2; the inner side of the washer 11 extends radially inward. The spool 3 is a cylindrical structure, disposed within the stator core 2, with its other end supported by the washer 11. The spool 3 is wound internally within the wall of the spool 3. A coil is provided, and the end of the coil is an enameled wire 4. The enameled wire 4 extends outward along the axial direction towards one end of the spool 3 and is connected to the PCB board 13. The enameled wire 4 has a redundant length between the spool 3 and the PCB board 13 to prevent the enameled wire 4 from being pulled when the PCB board 13 rotates, thus preventing the connection between the enameled wire 4 and the PCB board 13 from becoming loose. A first wire hole D is provided on one end wall of the stator core 2. The first wire hole D is set in the axial direction corresponding to the enameled wire 4 so that the enameled wire 4 can extend outward through the first wire hole D.

[0057] The shaft assembly includes a magnetic steel ring 5, a rotating shaft 6, a balance block 8, and a first retaining pad 9. The magnetic steel ring 5 is inserted into the wire cup 3 along the axial direction and rotates freely within the wire cup 3. The rotating shaft 6 is inserted into the magnetic steel ring 5 and is interference-fitted to form an integral rotating structure. Both ends of the rotating shaft 6 extend outward along the axial direction. One end passes through the cable assembly and extends into the end cover 17, and is rotatably connected to the end cover 17 through a first bearing 10 provided in the end cover 17. The other end extends into the connection space of the housing 1 and is rotatably connected to the housing 1 through a first bearing 10 in the connection space. The other end of the rotating shaft 6 is provided with a rotating shaft tooth 7 for connecting the transmission part B.

[0058] The balance block 8 includes at least two blocks, which are sleeved on the rotating shaft 6 and located on the other end side of the magnetic ring 5; the first retaining pad 9 is retained on the rotating shaft 6 and is located between the balance block 8 and the first bearing 10 in the axial direction; the balance block 8 is used to adjust the axial position of the magnetic ring 5 and the rotating shaft 6, and the first retaining pad 9 is used to clamp and limit the position.

[0059] The PCB support 12 includes a support ring 121, a first limiting post 122 and a second limiting post 123. The support ring 121 is a circular ring structure and is stacked on one end wall of the stator core 2 along the axial direction. The first limiting post 122 and the second limiting post 123 are spaced apart on the support ring 121 along the circumferential direction and extend along the axial direction respectively.

[0060] The PCB board 13 includes a PCB board body 131, a first limiting groove 132, a second limiting groove 133, a Hall point 134, and a branching groove 135. The PCB board body 131 is a circular plate structure, and is stacked on the support ring 121 along the axial direction. The first limiting groove 132 and the second limiting groove 133 are spaced apart along the circumference of the PCB board body 131, and are respectively corresponding to the first limiting post 122 and the second limiting post 123 along the axial direction. The second limiting post 123 extends into the first limiting groove 132 and the second limiting groove 133 along the axial direction, and is radially limited and locked; the Hall point 134 includes three, and the three Hall points 134 are respectively set on one side wall of the PCB board 131; the wire dividing groove 135 includes three, and the three wire dividing grooves 135 are respectively opened along the circumferential direction on the side wall of the PCB board 131. The three enameled wires 4 on the spool 3 pass through the three wire dividing grooves 135 axially and are connected to the other side wall of the PCB board 131.

[0061] The cable sheath 14 includes a sheath base 141, a third limiting groove 142, a third limiting post 143, a first arc-shaped groove 144, a second wire hole 145, and an isolation sleeve 146. The sheath base 141 is a circular plate-shaped structure, stacked axially on the PCB board 131. A cylindrical isolation sleeve 146 is provided on one side wall of the sheath base 141 near the PCB board 131. The isolation sleeve 146 is axially close to the PCB board 131, creating a gap between the sheath base 141 and the PCB board 131. The rotating shaft 6 passes axially through the bracket ring 121, the PCB board 131, the isolation sleeve 146, and the sheath base 141 in sequence before extending into the end cap 17. The isolation sleeve 146 isolates the rotating shaft 6 from the PCB board 131, preventing connection to the PCB board. The ribbon cable 15 and the rotating shaft 6 are on the body 131; the third limiting groove 142 is opened on the side wall edge of the sheath seat 141 and is correspondingly set with the second limiting post 123 in the axial direction. The second limiting post 123 passes through the second limiting groove 133 and continues to extend into the third limiting groove 142 in the axial direction; the third limiting post 143 is set on the other side wall of the sheath seat 141 and extends in the axial direction; the first arc groove 144 is an arc groove structure. The first arc groove 144 is opened on the sheath seat 141 and axially penetrates the sheath seat 141; the second wire hole 145 is opened on the sheath seat 141 and axially penetrates the sheath seat 141; after one end of the ribbon cable 15 is connected to the PCB board body 131, it is threaded in groups through the first arc groove 144 and the second wire hole 145 respectively.

[0062] The end cap 17 includes an end cap seat 171, an insert ring 172, and a fourth limiting groove 173. The end cap seat 171 is a circular cover. The insert ring 172 is an annular structure, disposed on the side wall of the end cap seat 171, and extends axially outward to be inserted into the end opening of the housing 1. A bearing groove F is formed within the insert ring 172 for mounting the first bearing 10. The rotating shaft passes through the PCB bracket 12, the PCB board 13, and the cable sleeve 14, and then extends into the first bearing 10 within the insert ring 172. The fourth limiting groove 173... 3 is formed on the side wall of the insert ring 172 and is correspondingly set with the third limiting post 143 in the axial direction. The third limiting post 143 extends into the fourth limiting groove 173. When the end cover seat 171 is rotated, the end cover seat 171 drives the sheath seat 141 to rotate through the fourth limiting groove 173 and the third limiting post 143. The sheath seat 141 drives the PCB bracket 12 to rotate through the third limiting groove 142 and the second limiting post 123. The PCB bracket 12 drives the PCB board body 131 to rotate through the first limiting post 122 and the first limiting groove 132.

[0063] The end cap seat 171 is provided with a second arc-shaped groove E and a third wire hole 174. The second arc-shaped groove E and the third wire hole 174 are respectively arranged in the axial direction to correspond to the first arc-shaped groove 144 and the second wire hole 145. The cable 15 passes through the first arc-shaped groove 144 into the second arc-shaped groove E, and passes through the second wire hole 145 into the third wire hole 174.

[0064] Example 2: Figures 18 to 25 As shown in the figure, as an embodiment of the present invention, the transmission part B of the present invention includes a housing 18, a transmission assembly, and an output assembly. The housing 18 is a cylindrical structure with openings at both ends. An annular step G is provided inside the end of the housing 18 near the power part A for fitting onto the housing 1. At least two mounting holes are provided on the side wall of the end of the housing 18 near the housing 1, and mounting screws 20 are respectively inserted into the at least two mounting holes. The mounting screws 20 are radially inserted into the housing 18 and the housing 1 for connecting and fixing the housing 1 and the housing 18. An internal gear ring 19 is provided on the inner wall of the housing 18. The transmission assembly is disposed inside the housing 18 and connected to the power part A. The rotational power output by the power part A is transmitted to the transmission assembly and undergoes speed change. The output assembly is disposed at the other end of the housing 18 and connected to the transmission assembly for outputting rotational power.

[0065] The transmission assembly of the present invention includes a planetary carrier 21, planetary gears 22, transmission gears 23, planetary support plates 24, a transmission seat 25, and gear shafts 26. Two planetary carriers 21 are included, and the two planetary carriers 21 and the transmission seat 25 are axially spaced within the outer casing. Three axially protruding gear shafts 26 are respectively provided on the planetary carriers 21 and the transmission seat 25 along the circumferential direction, and planetary gears 22 are respectively fitted onto the three gear shafts 26. Two planetary support plates 24 are included, and the two planetary support plates 24 are respectively stacked on the bottom of the two planetary carriers 21. Two transmission gears 23 are included, and the two transmission gears 23 are respectively located at the center of the bottom of the two planetary carriers 21. The three planetary gears 22 on the planetary carriers 21 respectively engage with the inner surface of the outer casing. The gear ring 19 engages; the rotating shaft 6 of the power unit A extends axially into the housing 18 and is inserted between the three planetary teeth 22 on the planetary carrier 21. The rotating shaft 6 is connected to the three planetary teeth 22 respectively through the rotating shaft teeth 7. The rotating shaft 6 transmits rotational power to the three planetary teeth 22. The planetary teeth 22 drive the planetary carrier 21 below to rotate. The transmission teeth 23 below the planetary carrier 21 are connected to the three planetary teeth 22 on another planetary carrier 21, thereby driving the other planetary carrier 21 to rotate through the transmission teeth 23 and the planetary teeth 22 on the other planetary carrier 21. The other planetary carrier 21 drives the transmission seat 25 to rotate through the transmission teeth 23 at its bottom and the planetary teeth 22 on the transmission seat 25. The transmission component of the present invention achieves three-stage speed change through three sets of planetary teeth 22. The rotational power output by the rotating shaft 6 is transmitted to the transmission seat 25 after passing through the three sets of planetary teeth 22 in three stages, realizing the rotational drive of the transmission seat 25.

[0066] The output assembly of this invention includes a second bearing 27, a transmission support 28, an output shaft 29, and a second retaining pad 30. The output shaft 29 is connected to the transmission base 25. The rotational power, after being changed by the transmission assembly, is transmitted to the output shaft 29 via the transmission base 25 and output through the output shaft 29 to supply the power requirements of the vehicle-mounted screen. The transmission support 28 is sleeved on the bottom of the outer casing 18 to seal the end face opening at the bottom of the outer casing 18. A mounting screw hole is provided on the end wall of the transmission support 28 along the axial direction to lock the transmission support 28 to the outer casing 18 with screws. Two second bearings 27 are spaced apart along the axial direction within the transmission support 28. The output shaft 29 extends out to the outside of the transmission support 28 through the two second bearings 27 and is rotatably mounted within the transmission support 28 via the second bearings 27. The second retaining pad 30 is sleeved on the output shaft 29 and located on the outside of the transmission support 28 to axially fix the output shaft 29.

[0067] Furthermore, this invention designs a vehicle-mounted curtain motor that realizes the branching and axial redundancy of multiple enameled wires, avoids the enameled wires from tangling and pulling each other during rotation, which would cause the connection to loosen, has a multi-level linkage rotation adjustment and matching function, completes the matching of Hall points and magnetic poles while assembling the end cap, and uses a sheath for isolation and cable branching to avoid the cable from tangling or pulling each other around the shaft, thus ensuring the stability of the wire connection.

[0068] This invention belongs to the field of motors and their transmissions, and aims to design a miniature power output device for vehicle-mounted screen applications. Specifically, the invention comprises a power unit and a transmission unit. The power unit outputs rotational power, and the transmission unit supplies the power output by the power unit with the opening or closing power of the vehicle-mounted screen after multi-stage speed regulation, thereby meeting the low-noise and low-vibration application requirements of vehicle-mounted screens. The power unit of this invention comprises a mounting assembly, a magnetic drive assembly, a shaft assembly, a cable assembly, and a sheath separating assembly. The mounting assembly provides the motor housing and mounting support structure. The magnetic drive assembly is disposed within the mounting assembly to form a closed magnetic field. The shaft assembly is disposed within the magnetic drive assembly and rotates under the magnetic force of the magnetic drive assembly to output rotational power. The cable assembly is disposed at one end of the magnetic drive assembly, with one end connected to the magnetic drive assembly and the other end connected to an external electric drive controller for electrically connecting the magnetic drive assembly and controlling its magnetic field. The sheath separating assembly is disposed between the cable assembly and the mounting assembly to separate the cables from the shaft assembly's cables, and also to separate and categorize multiple cables before exporting them, preventing tangling and pulling. The special feature is that the ribbon cable assembly of the present invention includes a PCB board and a ribbon cable, and the sheath separation assembly of the present invention includes a PCB support and a cable sheath; the bottom surface of the PCB board (Hall board) is provided with three Hall points, the top surface of the PCB board is connected to the enameled wire and the ribbon cable, and three wire-splitting grooves are opened along the circumferential direction on the side of the PCB board. During the assembly process, the three enameled wires led out from the end face of the spool extend from the bottom surface of the PCB board to its top surface along the axial direction through the three wire-splitting grooves and are then welded to the welding point on the top surface of the PCB. The three wire-splitting groove structure realizes the separate output of the three enameled wires, avoiding the situation where the three enameled wires are wrapped and pulled by each other during the rotation of the PCB board, resulting in loose connection. At the same time, axial redundancy of the enameled wire between the spool and the PCB board is reserved to avoid the situation where the wire is too short to rotate with the PCB board. Furthermore, the bottom surface of the sheath base of the present invention is provided with an isolation sleeve extending downward in the axial direction. During the assembly process, the support ring, PCB board and sheath base are stacked sequentially in the axial direction on the end walls of the spool and stator core. The end of the rotating shaft passes through the support ring, PCB board and sheath base in sequence and extends outward in the axial direction. The isolation sleeve at the bottom of the sheath base abuts against the side wall of the PCB board. The rotating shaft passes through the isolation sleeve and is isolated by the isolation sleeve, thereby avoiding direct contact between the rotating shaft and the enameled wire or ribbon cable at the top of the PCB board. This prevents the contact wear of the enameled wire or ribbon cable during high-speed rotation of the rotating shaft, which could lead to wire wear or wire entanglement.Furthermore, the PCB bracket of the present invention has a first limiting post and a second limiting post respectively provided on the bracket ring along the circumferential direction. The first limiting post includes two posts, and the second limiting post includes one post, and the axial length of the second limiting post is greater than the axial length of the first limiting post. The PCB board body has a first limiting groove and a second limiting groove respectively corresponding to the first and second limiting posts, so that the first and second limiting posts can be axially embedded. The side of the sheath seat has a third limiting groove corresponding to the second limiting post, and the top surface of the sheath seat has a third limiting post extending in the axial direction. The bottom surface of the end cover seat of the present invention has a downwardly extending insert ring for being embedded in the housing. The side wall of the insert ring has a fourth limiting groove corresponding to the third limiting post, and the third limiting post is axially embedded in the fourth limiting groove. During the assembly process, when the end cover and the housing are locked and fixed by a threaded connection, the... Locking is achieved by rotating the end cover. Simultaneously, the end cover rotates, driving the sheath seat to rotate in tandem via the fourth limiting groove and the third limiting post. The sheath seat, through the third limiting groove and the second limiting post, drives the lower support ring to rotate synchronously. The support ring, through the first limiting post and the first limiting groove, drives the PCB board to rotate synchronously. The aforementioned first limiting post, second limiting post, first limiting groove, second limiting groove, third limiting groove, third limiting post, and fourth limiting groove form a linkage adjustment component, achieving four-level linkage rotation adjustment. Experimental verification determined the threaded connection length between the housing and the end cover. While the rotating end cover locks into the housing, the Hall point adjustment of the PCB board is completed through four-level linkage rotation adjustment, simultaneously achieving Hall point matching with the rotor magnetic poles, reducing the time spent repeatedly adjusting and matching the Hall points, and improving assembly accuracy and efficiency. Furthermore, the sheath of the present invention is provided with a first arc-shaped groove and a second wire hole, and the end cap is provided with a corresponding second arc-shaped groove and a third wire hole. When multiple ribbon cables connected to the PCB board pass through the sheath, they are separated by the first arc-shaped groove and the second wire hole. Some cables pass through the first arc-shaped groove, and some ribbon cables pass through the second wire hole, realizing the separation of ribbon cables during the ribbon cable output process. This avoids the ribbon cables from getting tangled and pulled together during the rotation of the PCB board, ensuring the stability of the ribbon cable connection. The ribbon cables passing through the sheath extend to the outside of the motor through the second arc-shaped groove and the third wire hole on the end cap and connect to the external electric drive controller. The isolation sleeve, the first arc-shaped groove, and the second wire hole constitute the cable protection and separation component, realizing the isolation between the shaft and the ribbon cable or enameled wire and the separation of ribbon cables during the output process.

[0069] The embodiments of this invention are merely illustrative of specific implementation methods and are not intended to limit the scope of protection. Those skilled in the art can make modifications based on these embodiments; therefore, all equivalent changes or modifications made in accordance with the scope of this invention's patent claims fall within the scope of this invention's patent claims.

Claims

1. A vehicle-mounted curtain motor with linkage matching Hall point and wire protection branching functions, comprising a power part (A) and a transmission part (B) connected along the axial direction, wherein, The power unit (A) is used to output rotational power to the transmission unit (B), and the transmission unit (B) is used to output rotational power after speed change. Its characteristic is that: The power unit (A) includes a mounting assembly, a magnetic drive assembly, a shaft assembly, a cabling assembly, and a sheath partition assembly. The mounting assembly is a cylindrical structure with a transmission space inside, open at both ends. The magnetic drive assembly is disposed within the mounting assembly to form a closed electromagnetic field. The shaft assembly is disposed within the magnetic drive assembly, with both ends extending out of the magnetic drive assembly and rotatably connected to the mounting assembly. The cabling assembly is axially disposed at one end of the magnetic drive assembly and connected to one end of the mounting assembly via the sheath partition assembly. The cabling assembly is connected to both the magnetic drive assembly and an external electric drive controller to electrically conduct the magnetic drive assembly and control the electromagnetic field of the magnetic drive assembly to drive the shaft assembly to rotate. The transmission part (B) is connected to the other end of the mounting assembly and is connected to the shaft assembly. The rotational power output by the shaft assembly is transmitted to the transmission part (B) and then output through the transmission part (B). The ribbon cable assembly includes a PCB board (13) and a ribbon cable (15); the sheath separation assembly includes a PCB bracket (12) and a cable sheath (14); wherein, the PCB bracket (12) is a ring-shaped structure, and the PCB bracket (12) is placed on one end of the magnetic drive assembly along the axial direction; the PCB board (13) is a circular board structure, and the PCB board (13) is stacked on the PCB bracket (12) along the axial direction; the cable sheath (14) is a circular board structure, and the cable sheath (14) is stacked on the PCB board (13) along the axial direction; the ribbon cable (15) is connected to the PCB board (13), and extends outward through the cable sheath (14) and the mounting assembly along the axial direction for connecting to an external electric drive controller; The PCB bracket (12), PCB board (13) and wire sheath (14) are provided with linkage adjustment components. The linkage adjustment components are used to rotate and adjust the wire sheath (14), PCB board (13) and PCB bracket (12) in a linkage manner so that the Hall point on the PCB board (13) matches the magnetic pole position of the shaft assembly. The cable sleeve (14) is provided with a cable separation component, which is used to isolate the wires of the magnetic drive assembly from the shaft assembly and to separate and lead out the wires of the magnetic drive assembly. The PCB board (13) includes a PCB board body (131), a first limiting groove (132), a second limiting groove (133), a Hall point (134), and a dividing groove (135). The PCB board body (131) is a circular plate structure, and the PCB board body (131) is stacked on the support ring (121) along the axial direction. The first limiting groove (132) and the second limiting groove (133) are spaced apart on the PCB board body (131) along the circumferential direction, and are respectively corresponding to the first limiting post (122) and the second limiting post (123) along the axial direction. The first limiting post (122) 2) The second limiting post (123) extends into the first limiting groove (132) and the second limiting groove (133) in the axial direction respectively, and is radially limited and locked; the Hall point (134) includes three, and the three Hall points (134) are respectively set on one side wall of the PCB board (131); the wire distribution groove (135) includes three, and the three wire distribution grooves (135) are respectively opened in the circumferential direction on the side wall of the PCB board (131), and the three enameled wires (4) on the spool (3) pass through the three wire distribution grooves (135) in the axial direction and are connected to the other side wall of the PCB board (131).

2. A vehicle-mounted screen motor with linkage matching Hall point and wire protection branching function as described in claim 1, characterized in that: The mounting assembly includes a housing (1), an end cap (17), and a first bearing (10). The housing (1) is a cylindrical structure with a transmission space inside. Both ends of the housing (1) are open. The end cap (17) is located at one end of the housing (1) to close the end opening. The first bearing (10) includes two bearings. One bearing (10) is located inside the end cap (17) to connect one end of the shaft assembly, and the other bearing (10) is located at the other end of the housing (1) to connect the other end of the shaft assembly. The transmission space includes a transmission installation space and a connection space. The transmission installation space and the connection space are arranged along the axial direction. The transmission installation space is located near one end of the housing (1) and has a circular stepped surface at the other end of the housing (1). A magnetic drive assembly and a shaft assembly are arranged inside the transmission installation space. The connection space is located near the other end of the housing (1) and has a circular stepped surface at the other end of the housing (1). The first bearing (10) is arranged inside the connection space.

3. A vehicle-mounted screen motor with linkage matching Hall point and wire protection branching function as described in claim 2, characterized in that: The magnetic drive assembly includes a stator core (2), a spool (3), enameled wire (4), and a washer (11). The stator core (2) is a cylindrical structure and is disposed within the transmission installation space. The washer (11) is an annular sheet and is stacked axially on the circular stepped surface of the transmission installation space to support the stator core (2). The inner side of the washer (11) extends radially inward. The spool (3) is a cylindrical structure and is disposed within the stator core (2). The other end of the spool (3) is supported by the washer (11). The inner wall of the spool (3) is... A coil is wound around the core, and the end of the coil is an enameled wire (4). The enameled wire (4) extends outward along the axial direction towards one end of the spool (3) and is connected to the PCB board (13). The enameled wire (4) has a redundant length between the spool (3) and the PCB board (13) to prevent the PCB board (13) from pulling the enameled wire (4) when it rotates, thus preventing the connection between the PCB board (13) and the PCB board (13) from becoming loose. A first wire hole (D) is provided on one end wall of the stator core (2). The first wire hole (D) is set in the axial direction corresponding to the enameled wire (4) so ​​that the enameled wire (4) can pass through the first wire hole (D) and extend outward.

4. A vehicle-mounted screen motor with linkage matching Hall point and wire protection branching function as described in claim 3, characterized in that: The shaft assembly includes a magnetic steel ring (5), a rotating shaft (6), a balance block (8), and a first retainer (9). The magnetic steel ring (5) is inserted into the wire cup (3) along the axial direction and rotates freely within the wire cup (3). The rotating shaft (6) is inserted into the magnetic steel ring (5) and is interference-fitted to form an integral rotating structure. Both ends of the rotating shaft (6) extend outward along the axial direction. One end passes through the wiring assembly and extends into the end cover (17), and is rotatably connected to the end cover (17) through the first bearing (10) provided in the end cover (17). The other end extends into the connection space of the housing (1) and is rotatably connected to the housing (1) through the first bearing (10) in the connection space. The other end of the rotating shaft (6) is provided with a rotating shaft tooth (7) for connecting the transmission part (B).

5. A vehicle-mounted screen motor with linkage matching Hall point and wire protection branching function as described in claim 4, characterized in that: The balance block (8) includes at least two blocks, which are sleeved on the rotating shaft (6) and located on the other end side of the magnetic ring (5); the first retaining pad (9) is clamped on the rotating shaft (6) and located in the axial direction between the balance block (8) and the first bearing (10); the balance block (8) is used to adjust the axial position of the magnetic ring (5) and the rotating shaft (6), and the first retaining pad (9) is used to clamp and limit the position.

6. A vehicle-mounted screen motor with linkage matching Hall point and wire protection branching function as described in claim 5, characterized in that: The PCB support (12) includes a support ring (121), a first limiting post (122) and a second limiting post (123). The support ring (121) is a circular ring structure and is stacked on one end wall of the stator core (2) along the axial direction. The first limiting post (122) and the second limiting post (123) are spaced apart on the support ring (121) along the circumferential direction and extend along the axial direction respectively.

7. A vehicle-mounted screen motor with linkage matching Hall point and wire protection branching function as described in claim 6, characterized in that: The cable sheath (14) includes a sheath base (141), a third limiting groove (142), a third limiting post (143), a first arc-shaped groove (144), a second wire hole (145), and an isolation sleeve (146). The sheath base (141) is a circular plate structure, which is stacked on the PCB board (131) along the axial direction. A cylindrical structure is provided on one side wall of the sheath base (141) near the PCB board (131). An isolation sleeve (146) is axially close to the PCB board (131), creating a gap between the sleeve base (141) and the PCB board (131). The rotating shaft (6) axially passes through the bracket ring (121), the PCB board (131), the isolation sleeve (146), and the sleeve base (141) in sequence before extending into the end cap (17). The isolation sleeve (146) isolates the rotating shaft (6) from the PCB board (131) to prevent connection. The ribbon cable (15) and the pivot (6) are on the PCB board (131); the third limiting groove (142) is opened on the side wall edge of the sheath (141) and is correspondingly set with the second limiting post (123) in the axial direction. The second limiting post (123) passes through the second limiting groove (133) and continues to extend into the third limiting groove (142) in the axial direction; the third limiting post (143) is set on the other side wall of the sheath (141) and extends along the axis Extending in the direction; the first arc groove (144) is an arc groove structure, the first arc groove (144) is opened on the sheath seat (141) and axially penetrates the sheath seat (141); the second wire hole (145) is opened on the sheath seat (141) and axially penetrates the sheath seat (141); after one end of the ribbon cable (15) is connected to the PCB board (131), it is threaded through the first arc groove (144) and the second wire hole (145) respectively.

8. A vehicle-mounted screen motor with linkage matching Hall point and wire protection branching function as described in claim 7, characterized in that: The end cap (17) includes an end cap seat (171), an insert ring (172), and a fourth limiting groove (173). The end cap seat (171) is a circular cover. The insert ring (172) is an annular structure. The insert ring (172) is disposed on the side wall of the end cap seat (171) and extends axially outward so as to be inserted from the end opening of the housing (1). A bearing groove (F) is formed in the insert ring (172) for installing the first bearing (10). The rotating shaft passes through the PCB bracket (12), the PCB board (13), and the wire sheath (14) and extends into the first bearing (10) in the insert ring (172). The fourth limiting groove (173) 73) It is set on the side wall of the insert ring (172) and is corresponding to the third limiting post (143) in the axial direction. The third limiting post (143) extends into the fourth limiting groove (173). When the end cover seat (171) is rotated, the end cover seat (171) drives the sleeve seat (141) to rotate through the fourth limiting groove (173) and the third limiting post (143). The sleeve seat (141) drives the PCB bracket (12) to rotate through the third limiting groove (142) and the second limiting post (123). The PCB bracket (12) drives the PCB board (131) to rotate through the first limiting post (122) and the first limiting groove (132).

9. A vehicle-mounted screen motor with linkage matching Hall point and wire protection branching function as described in claim 8, characterized in that: The end cap seat (171) is provided with a second arc-shaped groove (E) and a third wire hole (174). The second arc-shaped groove (E) and the third wire hole (174) are respectively arranged in the axial direction to correspond to the first arc-shaped groove (144) and the second wire hole (145). The cable (15) passes through the first arc-shaped groove (144) into the second arc-shaped groove (E) and through the second wire hole (145) into the third wire hole (174).

10. A vehicle-mounted screen motor with linkage matching Hall point and wire protection branching function as described in claim 1, characterized in that: The transmission part (B) includes a housing (18), a transmission assembly, and an output assembly. The housing (18) is a cylindrical structure with openings at both ends. An annular step (G) is provided inside the end of the housing (18) near the power part (A) for fitting onto the housing (1). At least two mounting holes are provided on the side wall of the end of the housing (18) near the housing (1). Mounting screws (20) are inserted into the at least two mounting holes respectively. The mounting screws (20) are radially inserted into the housing (18) and the housing (1) for connecting and fixing the housing (1) and the housing (18). An internal gear ring (19) is provided on the inner wall of the housing (18). The transmission assembly is located inside the housing (18) and connected to the power part (A). The rotational power output by the power part (A) is transmitted to the transmission assembly and undergoes speed change. The output assembly is located at the other end of the housing (18) and connected to the transmission assembly for outputting rotational power.

Images