A motor structure

Abstract

The utility model discloses a motor structure, including casing, motor main body, electric control unit and transmission assembly, the casing includes main shell, front cover, back cover and motor end cover, and the first cavity and second cavity with intercommunication are brought to main shell, and the front cover has the third cavity, and the back cover has the fourth cavity, and the front cover, back cover detachable cover in the front and rear two ends of main shell, the motor main body sets up in the first cavity, and the electric control unit sets up in the third cavity and is connected with motor main body electricity, and the transmission assembly one side sets up in the second cavity, fourth cavity and is connected with the main shaft of motor main body, and the other side of transmission assembly is from main shell and goes out, and the motor end cover detachable setting is in the front end of main shell and will first cavity, third cavity separate, and the casing is provided with heat dissipation component. Motor main body, transmission assembly and electric control unit modularization integration in casing have realized mechatronics design, have improved transmission efficiency, can export heat outward through heat dissipation component, and reduce heat load accumulation.

Description

Technical Field

[0001] This utility model relates to the technical field of electric motors, and more particularly to an electric motor structure. Background Technology

[0002] With the development of electric motorcycle technology, the design of motor structure is also constantly evolving. In the existing technology, electric motorcycle motors often suffer from poor operating stability, space occupation caused by the separation of the central control and the motor, difficulty in motor installation, and accumulation of thermal load, which affect the normal operation and performance of the equipment. Therefore, it is necessary to improve these aspects. Summary of the Invention

[0003] This utility model addresses the shortcomings of existing technologies in electric motorcycles, such as the motor and central control being dispersed, occupying a large space, being difficult to install, and accumulating heat loads that are not easy to dissipate, by providing a new motor structure.

[0004] To solve the above-mentioned technical problems, this utility model achieves this through the following technical solution: An electric motor structure includes a housing, a motor body, an electronic control unit, and a transmission assembly. The housing includes a main shell, a front cover, a rear cover, and a motor end cover. The main shell has a first cavity and a second cavity that communicate with each other. The front cover has a third cavity, and the rear cover has a fourth cavity. The front and rear covers are detachably mounted on the front and rear ends of the main shell. The motor body is disposed in the first cavity. The electronic control unit is disposed in the third cavity and electrically connected to the motor body. One side of the transmission assembly is disposed in the second and fourth cavities and connected to the main shaft of the motor body. The other side of the transmission assembly extends out of the main shell. The motor end cover is detachably disposed at the front end of the main shell and separates the first and third cavities. A heat dissipation assembly is provided on the housing.

[0005] The motor body, transmission components, and electronic control unit are modularly integrated into the housing, realizing mechatronics design, improving transmission efficiency, reducing space occupation, and facilitating inspection and maintenance. At the same time, the heat dissipation components can dissipate the heat of the motor body and electronic control unit during operation, thereby improving the working efficiency of the motor structure and reducing the accumulation of thermal load.

[0006] Preferably, in the motor structure described above, the heat dissipation component includes a plurality of first heat dissipation plates and second heat dissipation plates. The first heat dissipation plates are linearly arrayed at the front end of the front cover, and the second heat dissipation plates are annular and coaxially arranged on the outer side wall of the main shell and the front cover. The front end of the front cover and the main shell is cylindrical, and the electronic control unit is coaxially arranged with the motor body.

[0007] The first and second heat sinks facilitate airflow during movement, carrying away heat. The first heat sink is arranged in a linear array or the second heat sink is in a ring shape, which facilitates processing and shaping. The electrical control unit is coaxially arranged with the motor body, further improving the degree of mechatronics integration and facilitating maintenance and assembly.

[0008] As a preferred embodiment, in the motor structure described above, the transmission component includes a sprocket, a main gear, a first helical gear, and a second helical gear. The main gear, the first helical gear, and the second helical gear are distributed from top to bottom and mesh sequentially. The front end of the main shaft of the main gear extends out from the rear end of the main housing. The sprocket is sleeved on the front end of the main shaft of the main gear. The main shaft of the motor body extends into the second cavity and the fourth cavity and is connected to the second helical gear.

[0009] The helical gear design makes the meshing between the main gear, the first helical gear and the second helical gear smoother and the overlap higher, thus enabling it to withstand greater loads and reducing impact and noise during transmission. At the same time, the main gear, the first helical gear and the second helical gear are distributed from top to bottom, with a compact structure that is easy to install. The main shaft of the motor body passes through the second helical gear and directly drives the second helical gear to rotate, reducing transmission losses.

[0010] As a preferred embodiment, in the motor structure described above, the second helical gear is sleeved on the main shaft of the motor body, and a recess is provided in the second cavity and the fourth cavity. The recess is used for the main shaft of the main gear, the main shaft of the first helical gear, and the main shaft of the motor body to be inserted and cooperate. An oil delivery groove extending into the recess is provided on the inner wall of the recess.

[0011] During use, bearings are fitted on the main shaft of the main gear, the main shaft of the first helical gear, and the main shaft of the motor body. The main shaft of the main gear, the main shaft of the first helical gear, and the main shaft of the motor body are limited by the slot and the insertion and cooperation of the bearing, thereby limiting the transmission components. The oil delivery groove facilitates the distribution of insulating oil into the slot to cool the main shaft of the main gear, the main shaft of the first helical gear, and the main shaft of the motor body.

[0012] As a preferred embodiment, in the motor structure described above, a limiting ring groove is provided on the motor end cover, and a plurality of fixing blocks are provided on the inner wall of the limiting ring groove. The fixing blocks are circumferentially distributed, and the front end of the main shell is inserted into the limiting ring groove and abuts against the inner wall of the limiting ring groove. The fixing blocks are attached to the front end of the main shell and are detachably connected by fasteners.

[0013] The fixing block is pressed against the front end of the main housing, which can pre-position the motor end cover on the main housing. At the same time, through the insertion and cooperation between the limiting ring groove and the front end of the main housing, the fixing block is prevented from shaking when it is locked to the front end of the main housing by fasteners, thus improving the convenience of motor assembly.

[0014] As a preferred embodiment, in the motor structure described above, the end of the front cover is provided with a positioning groove extending into the front cover, the number of positioning grooves corresponds one-to-one with the number of fixing blocks, the positioning groove is for the fixing blocks to be inserted and engaged, and an abutment plate is provided on the inner wall of the third cavity, the abutment plate abutting against the end of the electronic control unit.

[0015] By engaging the positioning slot and the fixing block, the front cover can be pre-positioned onto the main shell, thereby improving the convenience of fixing the front cover and the main shell with screws; the abutment plate limits the insertion depth of the electronic control unit in the third cavity, thus preventing the electronic control unit from being completely stuck in the third cavity, which not only facilitates heat dissipation but also makes it easier to remove the electronic control unit from the third cavity.

[0016] As a preferred embodiment, in the motor structure described above, reinforcing ribs are provided on the inner walls of the second cavity and the fourth cavity.

[0017] The structural strength of the rear end of the main shell and the rear cover is enhanced by reinforcing ribs, which improves the stability of supporting and limiting the transmission components. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is an exploded structural diagram of the front cover and motor end cover of this utility model; Figure 5 This is a structural schematic diagram of the main shell of this utility model from the rear view.

[0019] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Main housing; 12. Front cover; 121. Positioning groove; 13. Rear cover; 14. Motor end cover; 141. Limiting ring groove; 2. Motor body; 3. Electrical control unit; 4. Transmission assembly; 41. Sprocket; 42. Main gear; 43. First helical gear; 44. Second helical gear; 5. First cavity; 51. Second cavity; 52. Third cavity; 521. Abutment plate; 53. Fourth cavity; 6. Heat dissipation assembly; 61. First heat dissipation plate; 62. Second heat dissipation plate; 7. Sink; 71. Oil delivery groove; 8. Fixing block; 9. Reinforcing rib. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-5 The present invention will be further described in detail with reference to specific embodiments, but these are not intended to limit the present invention: Example

[0021] like Figures 1-5As shown, a motor structure includes a housing 1, a motor body 2, an electronic control unit 3, and a transmission assembly 4. The housing 1 includes a main shell 11, a front cover 12, a rear cover 13, and a motor end cover 14. The main shell 11 has a first cavity 5 and a second cavity 51 that communicate with each other. The front cover 12 has a third cavity 52, and the rear cover 13 has a fourth cavity 53. The front cover 12 and the rear cover 13 are detachably mounted on the front and rear ends of the main shell 11. The motor body 2 is disposed in the first cavity 5. The electronic control unit 3 is disposed in the third cavity 52 and electrically connected to the motor body 2. One side of the transmission assembly 4 is disposed in the second cavity 51 and the fourth cavity 53 and connected to the main shaft of the motor body 2. The other side of the transmission assembly 4 extends out of the main shell 11. The motor end cover 14 is detachably disposed at the front end of the main shell 11 and separates the first cavity 5 and the third cavity 52. ​​A heat dissipation assembly 6 is disposed on the housing 1.

[0022] Preferably, the heat dissipation assembly 6 includes a plurality of first heat dissipation plates 61 and second heat dissipation plates 62. The first heat dissipation plates 61 are linearly arrayed at the front end of the front cover 12, and the second heat dissipation plates 62 are annular and coaxially arranged on the outer side wall of the main shell 11 and the front cover 12. The front end of the front cover 12 and the main shell 11 is cylindrical, and the electronic control unit 3 is coaxially arranged with the motor body 2.

[0023] Preferably, the transmission assembly 4 includes a sprocket 41, a main gear 42, a first helical tooth 43, and a second helical tooth 44. The main gear 42, the first helical tooth 43, and the second helical tooth 44 are distributed from top to bottom and mesh in sequence. The front end of the main shaft of the main gear 42 extends out from the rear end of the main housing 11. The sprocket 41 is sleeved on the front end of the main shaft of the main gear 42. The main shaft of the motor body 2 passes into the second cavity 51 and the fourth cavity 53 and is connected to the second helical tooth 44.

[0024] Preferably, the second helical gear 44 is sleeved on the main shaft of the motor body 2, and the second cavity 51 and the fourth cavity 53 are provided with a recess 7. The recess 7 is used for the main shaft of the main gear 42, the main shaft of the first helical gear 43 and the main shaft of the motor body 2 to be inserted and cooperate. The inner wall of the recess 7 is provided with an oil delivery groove 71 extending into the recess 7.

[0025] During use, bearings are fitted on the main shaft of the main gear 42, the main shaft of the first helical gear 43, and the main shaft of the motor body 2. The main shaft of the main gear 42, the main shaft of the first helical gear 43, and the main shaft of the motor body 2 are limited by the slot 71 and the insertion and cooperation of the bearings, thereby limiting the transmission component 4. The oil supply groove 71 facilitates the distribution of insulating oil into the slot 71 to cool down the main shaft of the main gear 42, the main shaft of the first helical gear 43, and the main shaft of the motor body 2.

[0026] Preferably, the motor end cover 14 has a limiting ring groove 141, and a plurality of fixing blocks 8 are provided on the inner wall of the limiting ring groove 141. The fixing blocks 8 are circumferentially distributed. The front end of the main shell 11 is inserted into the limiting ring groove 141 and abuts against the inner wall of the limiting ring groove 141. The fixing blocks 8 are attached to the front end of the main shell 11 and are detachably connected by fasteners.

[0027] Preferably, the end of the front cover 12 is provided with a positioning groove 121 extending into the front cover 12. The number of positioning grooves 121 corresponds one-to-one with the number of fixing blocks 8. The positioning grooves 121 are for the fixing blocks 8 to be inserted and engaged. The inner wall of the third cavity 52 is provided with an abutment plate 521, which abuts against the end of the electronic control unit 3.

[0028] Preferably, the inner walls of the second cavity 51 and the fourth cavity 53 are provided with reinforcing ribs 9.

[0029] Specifically, the motor end cover 14 has an arc-shaped wire-passing groove, which communicates with the first cavity 5 and the third cavity 52, and connects the motor body 2 to the electrical control unit 3. Multiple fixing blocks 8 are arranged circumferentially on the motor end cover 14. An extension block is integrally formed on both sides of each fixing block 8. One side of the extension block is located on the motor end cover 14, and the other side is located on the side wall of the fixing block 8, thus supporting the fixing block 8 through the extension blocks.

[0030] In this embodiment, the outer diameter of the motor end cover 14 is smaller than the inner diameter of the front cover 12. The end of the fixing block 8 away from the motor end cover 14 is semi-circular. The positioning groove 121 is adapted to the shape of the fixing block 8, thereby reducing the obstruction encountered when the fixing block 8 is inserted into the positioning groove 121 and improving the smoothness of the front cover 12 being positioned outside the motor end cover 14.

[0031] The end of the abutment plate 521 facing the opening of the third cavity 52 is pressed against the end of the electronic control unit 3 facing the inside of the third cavity 52, thereby limiting the depth of the electronic control unit 3 inserted into the front cover 12 and reducing the contact area between the electronic control unit 3 and the front cover 12, preventing the electronic control unit 3 from completely adhering to the inner wall of the third cavity 52, and making it easier to remove the electronic control unit 3 from the third cavity 52.

[0032] In use, the motor body 2, transmission component 4 and electronic control unit 3 are modularly integrated in the housing 1, realizing electromechanical integration design, improving transmission efficiency, reducing space occupation, and facilitating inspection and maintenance. At the same time, the heat dissipation component 6 can dissipate the heat of the motor body 2 and electronic control unit 3 during operation, thereby improving the working efficiency of the motor structure.

[0033] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A motor structure, comprising a housing (1) and a motor body (2), characterized in that: It also includes an electronic control unit (3) and a transmission assembly (4). The housing (1) includes a main housing (11), a front cover (12), a rear cover (13), and a motor end cover (14). The main housing (11) has a first cavity (5) and a second cavity (51) that are connected. The front cover (12) has a third cavity (52), and the rear cover (13) has a fourth cavity (53). The front cover (12) and the rear cover (13) are detachable covers at the front and rear ends of the main housing (11). The motor body (2) is located in the first cavity. Inside the body (5), the electronic control unit (3) is located in the third cavity (52) and electrically connected to the motor body (2). One side of the transmission assembly (4) is located in the second cavity (51) and the fourth cavity (53) and connected to the main shaft of the motor body (2). The other side of the transmission assembly (4) extends out from the main shell (11). The motor end cover (14) is detachably located at the front end of the main shell (11) and separates the first cavity (5) and the third cavity (52). A heat dissipation assembly (6) is provided on the shell (1).

2. The motor structure according to claim 1, characterized in that: The heat dissipation assembly (6) includes several first heat dissipation plates (61) and second heat dissipation plates (62). The first heat dissipation plates (61) are arranged in a linear array at the front end of the front cover (12), and the second heat dissipation plates (62) are arranged in a ring shape and coaxially on the outer side wall of the main shell (11) and the front cover (12). The front end of the front cover (12) and the main shell (11) are cylindrical, and the electronic control unit (3) and the motor body (2) are arranged coaxially.

3. The motor structure according to claim 1, characterized in that: The transmission assembly (4) includes a sprocket (41), a main gear (42), a first helical tooth (43), and a second helical tooth (44). The main gear (42), the first helical tooth (43), and the second helical tooth (44) are distributed from top to bottom and mesh in sequence. The front end of the main shaft of the main gear (42) passes through the rear end of the main housing (11). The sprocket (41) is sleeved on the front end of the main shaft of the main gear (42). The main shaft of the motor body (2) passes into the second cavity (51) and the fourth cavity (53) and is connected to the second helical tooth (44).

4. The motor structure according to claim 3, characterized in that: The second helical tooth (44) is sleeved on the main shaft of the motor body (2). The second cavity (51) and the fourth cavity (53) are provided with a groove (7). The groove (7) is used for the main shaft of the main gear (42), the main shaft of the first helical tooth (43) and the main shaft of the motor body (2) to be inserted and cooperate. The inner wall of the groove (7) is provided with an oil delivery groove (71) extending into the groove (7).

5. The motor structure according to claim 1, characterized in that: The motor end cover (14) has a limiting ring groove (141) and a plurality of fixing blocks (8) are provided on the inner wall of the limiting ring groove (141). The fixing blocks (8) are distributed circumferentially. The front end of the main shell (11) is inserted into the limiting ring groove (141) and abuts against the inner wall of the limiting ring groove (141). The fixing blocks (8) are attached to the front end of the main shell (11) and are detachably connected by fasteners.

6. The motor structure according to claim 5, characterized in that: The front cover (12) has a positioning groove (121) extending into the front cover (12) at its end. The number of positioning grooves (121) corresponds to the number of fixing blocks (8). The positioning grooves (121) allow the fixing blocks (8) to be inserted and engaged. The inner wall of the third cavity (52) is provided with an abutment plate (521), which abuts against the end of the electronic control unit (3).

7. The motor structure according to claim 1, characterized in that: The inner walls of the second cavity (51) and the fourth cavity (53) are provided with reinforcing ribs (9).

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