Hub motor structure integrated with integrated socket

Abstract

The utility model provides a hub motor structure integrated with an integrated socket. The hub motor structure comprises a stator assembly, a fixed support and a first half shaft. The stator assembly comprises an integrated socket, a PCB, a first insulating end plate, a stator core, a second insulating end plate and a coil group. The coil group is wound on the stator iron core, and the first insulating end plate and the second insulating end plate are respectively positioned on two sides of the stator iron core; a terminal on one side of the integrated socket is electrically connected to the PCB, and the PCB is connected to the first insulating end plate and electrically connected with a phase line and a signal line of the stator. The stator assembly is accommodated in the fixing support, the fixing portion of the first half shaft is connected to the outer side of the fixing support, the fixing support is provided with a via hole, a shaft body of the first half shaft penetrates through the via hole to be exposed outside, and a terminal on the other side of the integrated socket is exposed in the via hole. The integrated socket is installed on the PCB, and the stator support and the shaft are provided with via holes, so that the interface is exposed and is connected with an external facility.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a hub motor structure with an integrated socket. Background Technology

[0002] In-wheel motor technology, also known as wheel-mounted motor technology, is characterized by integrating the power, transmission, and braking devices into the wheel hub, thus greatly simplifying the mechanical parts of electric vehicles.

[0003] Patent document CN220754524U discloses a waterproof structure for the lead wire of a hub motor. The hub motor has a wire outlet hole and a lead wire passing through the hole. The lead wire includes multiple conductors. The waterproof structure includes a sealing sleeve and a waterproof sleeve fitted onto the lead wire. Most existing electric bicycle hub motors have lead wires, and the length of the motor lead wires and the specifications of the connectors need to be customized according to customer requirements. Thus, the complex lead wire structure similar to the one in the above patent document is difficult to standardize and is not conducive to mass production. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a hub motor structure with an integrated socket.

[0005] According to the present invention, a hub motor structure with an integrated socket includes: a stator assembly 7, a fixed bracket 6, and a first half-shaft 4;

[0006] The stator assembly 7 includes: an integrated socket 701, a PCB board 702, a first insulating end plate 704, a stator core 705, a second insulating end plate 706, and a coil assembly 707.

[0007] The coil group 707 is wound around the stator core 705, and the first insulating end plate 704 and the second insulating end plate 706 are respectively located on both sides of the stator core 705;

[0008] The terminals on one side of the integrated socket 701 are electrically connected to the PCB board 702, the PCB board 702 is connected to the first insulating end plate 704, and is electrically connected to the phase line and signal line of the stator.

[0009] The stator assembly 7 is housed within the fixed bracket 6. The fixing part of the first half-shaft 4 is connected to the outside of the fixed bracket 6. The fixed bracket 6 has a through hole through which the shaft of the first half-shaft 4 passes and protrudes. The terminal on the other side of the integrated socket 701 is exposed within the through hole.

[0010] Furthermore, a Hall element 703 or a magnetic encoder is electrically connected to the PCB board 702.

[0011] Furthermore, it also includes: rotor 9, central gear 13, planetary support 14, and second half-shaft 15;

[0012] The rotor 9 is coaxially disposed within the stator assembly 7. The central shaft of the central gear 13 is drivenly connected to the rotor 9. The central gear 13 meshes with the planetary gear in the planetary support 14. The fixing part of the second half-shaft 15 is connected to the outside of the planetary support 14.

[0013] Furthermore, the fixed bracket 6 is connected to the planetary bracket 14 by the second fastening screw 5, and the stator assembly 7, the rotor 9, and the central gear 13 are housed within it.

[0014] Furthermore, the central shaft end of the central gear 13 passes through the rotor 9 and is axially fixed by the shaft retaining ring 8. A second bearing 11 and a third bearing 12 are also sleeved on the central shaft, and the second bearing 11 and the third bearing 12 are supported on the planetary support 14.

[0015] Furthermore, a shim 10 is also fitted between the rotor 9 on the central shaft and the second bearing 11.

[0016] Furthermore, it also includes a housing 1, which has a through hole through which the shaft of the first half-shaft 4 passes and protrudes, and the terminal on the other side of the integrated socket 701 protrudes into the through hole of the housing.

[0017] Furthermore, the fixing part of the first half-shaft 4 is fitted with a first bearing 2, which is supported on the inner wall of the through hole of the outer casing.

[0018] Furthermore, a terminal through hole is provided on the fixing part of the first half-shaft 4, and the terminal on the other side of the integrated socket 701 passes through the terminal through hole.

[0019] Furthermore, the fixing part of the first half-shaft 4 is connected to the fixing bracket 6 by the first fastening screw 3, and the fixing part of the second half-shaft 15 is connected to the planetary bracket 14 by the third fastening screw 16.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This utility model mounts an integrated socket on a PCB board and provides through holes on the stator bracket and shaft, so that the interface of the integrated plug is exposed and connected to external facilities, so that the hub motor itself does not need to have lead wires.

[0022] Using a modular stator can effectively improve the stator slot fill factor. The PCB board is mounted on the stator insulation end plate, and Hall effect sensors or other components are directly soldered onto the PCB board, making the overall structure of the stator assembly simple and complete. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is an exploded view of the present invention;

[0025] Figure 2 This is a side view of the present invention;

[0026] Figure 3 This is a schematic diagram of the fixed support structure;

[0027] Figure 4 This is a schematic diagram of the structure of the first half-shaft;

[0028] Figure 5 This is a structural schematic diagram of the stator assembly;

[0029] Figure 6 This is a cross-sectional view of the rotor and planetary support, etc.

[0030] In the picture:

[0031] 1: Housing; 2: First bearing; 3: First fastening screw; 4: First half-shaft; 5: Second fastening screw; 6: Fixing bracket; 7: Stator assembly; 8: Shaft retaining ring; 9: Rotor; 10: Washer; 11: Second bearing; 12: Third bearing; 13: Central gear; 14: Planetary support; 15: Second half-shaft; 16: Third fastening screw; 701: Integrated socket; 702: PCB board; 703: Hall effect sensor; 704: First insulating end plate; 705: Stator core; 706: Second insulating end plate; 707: Coil. Detailed Implementation

[0032] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0033] like Figure 1As shown, this utility model provides a hub motor structure with an integrated socket, including: a housing 1, a first bearing 2, a first half-shaft 4, a fixed bracket 6, a stator assembly 7, a rotor 9, a second bearing 11, a third bearing 12, a central gear 13, a planetary support 14, and a second half-shaft 15.

[0034] Combination Figure 5 As shown, the stator assembly 7 includes: an integrated socket 701, a PCB board 702, a first insulating end plate 704, a stator core 705, a second insulating end plate 706, and a coil assembly 707. The stator core 705 is a modular stator core, and the coil assembly 707 is wound on the stator core 705. The first insulating end plate 704 and the second insulating end plate 706 are located on both sides of the stator core 705, respectively.

[0035] The terminals on one side of the integrated socket 701 are electrically connected to the PCB board 702, which is connected to the first insulating end plate 704. The terminals of the integrated socket 701 include phase wire pins (or sockets) and signal wire pins (or sockets), which are electrically connected to the phase wires and signal wires of the stator. They can be directly soldered to the PCB board 702 or soldered to the PCB board 702 by means of wire connection. The PCB board 702 also has a Hall element 703, a magnetic encoder, or other components electrically connected to it, or a sensorless solution can be used.

[0036] like Figure 2 As shown, the stator assembly 7 is housed within the fixed bracket 6, and the fixing part of the first half-shaft 4 is connected to the outside of the fixed bracket 6, as shown. Figure 3 As shown, the fixing bracket 6 has a through hole through which the shaft of the first half-shaft 4 passes and protrudes. Figure 4 As shown, a terminal through hole is provided on the fixing part of the first half shaft 4. The terminal on the other side of the integrated socket 701 passes through the terminal through hole, and the terminal on the other side of the integrated socket 701 passes through the through hole of the first half shaft 4 and is exposed in the through hole of the fixing bracket 6.

[0037] In this embodiment, the outer casing 1 has a through hole through which the shaft of the first half-shaft 4 passes and protrudes, while the terminal on the other side of the integrated socket 701 protrudes into the through hole of the outer casing 1. The fixing part of the first half-shaft 4 is fitted with a first bearing 2, which supports it against the inner wall of the through hole of the outer casing 1. The fixing part of the first half-shaft 4 is connected to the fixing bracket 6 by a first fastening screw 3.

[0038] like Figure 6As shown, the rotor 9 is coaxially mounted within the stator assembly 7. The central shaft of the central gear 13 is drivenly connected to the rotor 9, and the central gear 13 meshes with the planetary gears within the planetary support 14. The fixing part of the second half-shaft 15 is connected to the outside of the planetary support 14. The fixing part of the second half-shaft 15 is connected to the planetary support 14 via a third fastening screw 16. The fixing bracket 6 is connected to the planetary support 14 via a second fastening screw 5, housing the stator assembly 7, rotor 9, and central gear 13. The end of the central shaft of the central gear 13 passes through the rotor 9 and is axially fixed by a shaft retaining ring 8. A second bearing 11 and a third bearing 12 are also fitted on the central shaft, supporting it on the planetary support 14. A shim 10 is also fitted between the rotor 9 and the second bearing 11 on the central shaft.

[0039] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0040] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A hub motor structure with an integrated socket, characterized in that, include: Stator assembly (7), fixed bracket (6), and first half-shaft (4); The stator assembly (7) includes: an integrated socket (701), a PCB board (702), a first insulating end plate (704), a stator core (705), a second insulating end plate (706), and a coil assembly (707); The coil assembly (707) is wound around the stator core (705), and the first insulating end plate (704) and the second insulating end plate (706) are respectively located on both sides of the stator core (705); The terminals on one side of the integrated socket (701) are electrically connected to the PCB board (702), the PCB board (702) is connected to the first insulating end plate (704), and is electrically connected to the phase line and signal line of the stator; The stator assembly (7) is housed in the fixed bracket (6), the fixing part of the first half shaft (4) is connected to the outside of the fixed bracket (6), the fixed bracket (6) has a through hole, the shaft of the first half shaft (4) passes through the through hole and is exposed outside, and the terminal on the other side of the integrated socket (701) is exposed in the through hole.

2. The hub motor structure of the integrated socket according to claim 1, characterized in that, The PCB board (702) is electrically connected to a Hall element (703) or a magnetic encoder.

3. The hub motor structure of the integrated socket according to claim 1, characterized in that, Also includes: Rotor (9), central gear (13), planetary support (14), and second half-shaft (15); The rotor (9) is coaxially disposed within the stator assembly (7), the central shaft of the central gear (13) is drivenly connected to the rotor (9), the central gear (13) meshes with the planetary gear in the planetary support (14), and the fixing part of the second half-shaft (15) is connected to the outside of the planetary support (14).

4. The hub motor structure of the integrated socket according to claim 3, characterized in that, The fixed bracket (6) is connected to the planetary bracket (14) by a second fastening screw (5), and houses the stator assembly (7), the rotor (9), and the central gear (13).

5. The hub motor structure of the integrated socket according to claim 3, characterized in that, The central shaft end of the central gear (13) passes through the rotor (9) and is axially fixed by the shaft retaining ring (8). A second bearing (11) and a third bearing (12) are also sleeved on the central shaft, and the second bearing (11) and the third bearing (12) are supported on the planetary support (14).

6. The hub motor structure of the integrated socket according to claim 5, characterized in that, A shim (10) is also fitted between the rotor (9) on the central shaft and the second bearing (11).

7. The hub motor structure of the integrated socket according to claim 1, characterized in that, It also includes a housing (1) with a through hole through which the shaft of the first half-shaft (4) passes and protrudes, and the terminal on the other side of the integrated socket (701) protrudes into the through hole of the housing.

8. The hub motor structure of the integrated socket according to claim 7, characterized in that, The first half-shaft (4) is fitted with a first bearing (2) and is supported by the first bearing (2) on the inner wall of the through hole of the outer casing.

9. The hub motor structure of the integrated socket according to claim 1, characterized in that, A terminal through hole is provided on the fixing part of the first half shaft (4), and the terminal on the other side of the integrated socket (701) passes through the terminal through hole.

10. The hub motor structure of the integrated socket according to claim 3, characterized in that, The fixing part of the first half-shaft (4) is connected to the fixing bracket (6) by the first fastening screw (3), and the fixing part of the second half-shaft (15) is connected to the planetary bracket (14) by the third fastening screw (16).

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