Driver integrated motor
By installing the drivers in the motor as a whole, using sealed connections and tapered extension frame design, the problem of poor sealing of the motor is solved, and the service life and heat dissipation ability of the motor are improved.
Patent Information
- Application Number
- CN202420989807.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The wire connection between the existing servo motor driver and the motor causes the entry of external water and dust, reducing the sealing performance and service life of the motor.
Design a motor with a driver-integrated motor, by installing a stator group and a rotor group on the inner wall of the motor housing, and sealing the drive plate with the bracket body and the third cover body to form a sealing cavity, eliminating the long connection between the motor and the driver Line to improve overall sealing.
It improves the sealing of the motor, reduces the inflow of external dust and water, reduces the failure rate, extends the service life of the motor, and increases the heat dissipation space of the driving board through the tapered extension frame.
Smart Images
Figure CN222262422U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motors, and in particular to a motor integrated with a driver. Background Art
[0002] Currently, the drive board used to control the servo motor drive is usually connected to the motor body through wires. The drive board is installed in the control box, and the control box is installed on the outer wall of the motor housing. This causes the wires to be exposed, and at the point where the wires pass through the motor housing, external moisture and dust can easily enter, resulting in reduced sealing performance of the motor and affecting the service life of the motor. Utility Model Content
[0003] The utility model aims to overcome the above-mentioned deficiencies of the prior art and provide a motor with a driver integrated therein, wherein the driver and the motor are installed in one piece, the overall sealing is good, and the service life of the motor is increased.
[0004] The utility model discloses a motor with a driver integrated therein, comprising a motor housing, a stator group and a rotor group. The stator group is installed on the inner wall of the motor housing, the rotor group is located on the radial inner side of the stator group, and also comprises a driving plate. A second cover body is fixedly installed on the bottom of the motor housing, a bracket body is installed on the bottom of the second cover body, a third cover body is installed on the bottom of the bracket body, a cavity is formed together inside the bracket body and the inside of the third cover body, the driving plate is located in the cavity, the driving plate comprises a bottom bracket located at the bottom, the bottom bracket part is located on the radial outer side of the driving plate, the bracket body and the third cover body respectively abut against upper and lower ends of the bottom bracket, and the bracket body and the third cover body press the bottom bracket up and down to fix the driving plate.
[0005] Furthermore, the support body includes an extension frame, the outer wall of the extension frame is a cone with a small outer diameter at the upper end and a large outer diameter at the lower end, and the drive plate is located radially inside the bottom of the extension frame.
[0006] Furthermore, the bracket body includes a first limiting body, and the third cover body includes a third limiting body. The first limiting body and the third limiting body respectively abut against upper and lower ends of the driving plate to limit the driving plate.
[0007] Furthermore, the bracket body includes a second limiting body, the driving plate is provided with at least two positioning holes, the second limiting body corresponds to the positioning holes one by one, and the second limiting body is inserted into the corresponding positioning holes.
[0008] Furthermore, the third cover body includes an extension plate, a fifth slot body is provided on a side of the extension plate close to the bracket body, the bottom bracket portion is inserted into the fifth slot body, and the fifth slot body passes through the side wall of the third cover body.
[0009] Furthermore, a fourth slot is provided at the upper end of the extension plate, a sealing component is installed in the fourth slot, the bottom of the bracket body is inserted into the fourth slot and the sealing component is pressed to form a seal between the bracket body and the third cover body.
[0010] Furthermore, the fourth groove body includes a groove wall located at the bottom, the groove wall and the top surface of the bottom bracket are located in the same plane, and the bottom surface of the sealing component is closely attached to the groove wall and the top surface of the bottom bracket.
[0011] Furthermore, the third cover body includes a cover plate, the cover plate is provided with an extension seat, the extension seat is provided with a socket, the socket passes through the cover plate, a light guide component is inserted and installed in the socket, and one end of the light guide component axis is close to the driving plate.
[0012] Furthermore, the rotor assembly includes a shaft body, the lower end of the shaft body passes through the second cover body, a shaft sleeve is installed at the lower end of the shaft body, a magnet is installed at the bottom of the shaft sleeve, an encoder chip is installed at the upper end of the drive plate, the encoder chip is located below the magnet and the two are arranged close to each other.
[0013] Furthermore, a first cover body is fixedly installed on the top of the motor housing, and the upper and lower ends of the motor housing are closed by the first cover body and the second cover body. A first extension body is provided at the bottom of the first cover body, and the first extension body is inserted into the upper end of the motor housing. A sealing ring is installed between the outer wall of the first extension body and the inner wall of the motor housing. A second extension body is provided at the upper end of the second cover body, and the second extension body is inserted into the bottom of the motor housing. A sealing ring is installed between the outer wall of the second extension body and the inner wall of the motor housing. A third extension body is provided at the lower end of the second cover body, and the third extension body is inserted into the top of the bracket body, and a sealing ring is installed between the outer wall of the third extension body and the inner wall of the bracket body.
[0014] Beneficial effects of the utility model:
[0015] 1. By installing the driver integrated inside the motor, the motor housing is sealed with the first cover body and the second cover body, the second cover body is sealed with the bracket body, and the bracket body is sealed with the third cover body, which eliminates the long connecting wire between the motor and the driver, reduces the connection failure of the external wire, improves the overall sealing of the motor, reduces the entry of external dust and moisture into the motor, reduces the equipment failure rate, and is beneficial to prolonging the service life of the motor.
[0016] 2. By setting the outer wall of the extension frame to a cone with a small outer diameter at the upper end and a large outer diameter at the lower end, the accommodating space inside the extension frame is increased while ensuring that the side wall of the extension frame is of sufficient thickness and meets the use requirements of its strength, so that the size of the drive board placed inside the extension frame can be set larger, which is convenient for the production of the drive board and improves the heat dissipation capacity of the drive board during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a cross-sectional view of an embodiment;
[0018] Figure 2 for Figure 1 The enlarged view of point B in the middle;
[0019] Figure 3 for Figure 1 The enlarged view of point A in the middle;
[0020] Figure 4 A perspective view of an embodiment;
[0021] Figure 5 It is a partial exploded view of an embodiment;
[0022] Figure 6 is a three-dimensional diagram of the bracket body in the embodiment;
[0023] Figure 7 is a three-dimensional diagram of the third cover body in the embodiment;
[0024] Figure 8 3D is a perspective view of a driving plate in an embodiment.
[0025] Figure numerals: motor housing 1, first cover body 11, first extension body 111, first groove body 1111, first bearing 112, second cover body 12, second extension body 121, second groove body 1211, third extension body 122, third groove body 1221, second bearing 123, stator group 2, rotor group 3, shaft body 31, bracket body 4, bracket plate 41, extension frame 42, edge plate 421, first limit body 43, second limit body 44, third cover body 5, cover plate 51, extension seat 511, jack 512, extension plate 52, fourth groove body 521, groove wall 5211, fifth groove body 522, third limit body 523, bushing 6, magnet 61, drive plate 7, encoder chip 71, base 72, positioning hole 73, sealing component 8, light guide component 9. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in this embodiment to clearly and completely describe the technical solution in this embodiment. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0027] like Figure 1 , Figure 4As shown, a motor with integrated driver includes a motor housing 1, a stator group 2, and a rotor group 3. The stator group 2 is installed on the inner wall of the motor housing 1, and the rotor group 3 is located radially inside the stator group 2. The motor housing 1 is through-through from top to bottom. A first cover 11 is fixedly installed on the top of the motor housing 1, and a second cover 12 is fixedly installed on the bottom of the motor housing 1. The upper and lower ends of the motor housing 1 are closed by the first cover 11 and the second cover 12. The rotor group 3 includes a shaft 31, the upper end of the shaft 31 passes through the first cover 11, and the lower end of the shaft 31 passes through the second cover 12. The shaft 31 is connected to the first cover 11 through a first bearing 112, and the shaft 31 is connected to the second cover 12 through a second bearing 123. The upper and lower ends of the shaft 31 extend out of the upper end of the first cover 11 and the lower end of the second cover 12, respectively.
[0028] like Figure 1 , Figure 3 As shown, a first extension body 111 is provided at the bottom of the first cover body 11, and the first extension body 111 extends downward along the bottom of the first cover body 11, and the first extension body 111 is inserted into the upper end of the motor housing 1, and the outer peripheral wall of the first extension body 111 is in contact with the inner peripheral wall of the motor housing 1, and the upper end surface of the motor housing 1 abuts against the bottom surface of the first cover body 11. The first extension body 111 is provided with a first groove body 1111, and the first groove body 1111 is radially recessed inward along the outer wall of the first extension body 111 to form an annular groove body, and the position of the first groove body 1111 is higher than the bottom position of the first extension body 111, and a sealing ring is stuck in the first groove body 1111 to form a seal between the first cover body 11 and the motor housing 1.
[0029] like Figure 1 , Figure 2 As shown, the second cover 12 is provided with a second extension body 121 at the upper end thereof, the second extension body 121 extends upward along the upper end surface of the second cover 12, the second extension body 121 is inserted into the bottom of the motor housing 1, the outer peripheral wall of the second extension body 121 is fitted with the inner peripheral wall of the motor housing 1, and the lower end surface of the motor housing 1 abuts against the top surface of the second cover 12. The second extension body 121 is provided with a second groove body 1211, the second groove body 1211 is recessed radially inward along the outer wall of the second extension body 121 to form an annular groove body, the second groove body 1211 is located lower than the top position of the second extension body 121, and a sealing ring is clamped in the second groove body 1211 to form a seal between the second cover 12 and the motor housing 1.
[0030] like Figure 1 , Figure 2 As shown, the bottom of the second cover 12 is equipped with a bracket 4, combined with Figure 6The bracket body 4 includes a bracket plate 41 and an extension frame 42 located below the bracket plate 41. The bracket plate 41 is a plate-like structure. The extension frame 42 extends downward along the outer circumference of the bracket plate 41 to form a frame structure. The outer wall of the extension frame 42 is a cone with a small outer diameter at the upper end and a large outer diameter at the lower end. While ensuring that the wall thickness of the extension frame 42 meets the strength requirements, the inner diameter of the bottom of the extension frame 42 is increased to provide a larger accommodating space. Figure 2 In the figure, a third extension body 122 is provided at the lower end of the second cover body 12, and the third extension body 122 extends downward along the bottom of the second cover body 12, and the third extension body 122 is inserted into the top of the bracket plate 41. The third extension body 122 is provided with a third groove body 1221, and the third groove body 1221 is radially recessed inward along the outer wall of the third extension body 122 to form an annular groove body, and a sealing ring is stuck in the third groove body 1221 to form a seal between the second cover body 12 and the bracket body 4.
[0031] like Figure 1 , Figure 4 As shown, a third cover 5 is installed at the bottom of the bracket body 4, combined with Figure 7 The third cover body 5 includes a cover plate 51 and an extension plate 52 above the cover plate 51. The cover plate 51 is a plate-shaped structure. The extension plate 52 extends upward along the upper end of the cover plate 51 to form a frame structure. A fourth groove 521 is provided at the upper end of the extension plate 52. A sealing component 8 is installed in the fourth groove 521. The sealing component 8 is an annular sealing ring. The bottom of the bracket body 4 is inserted into the fourth groove 521 and the sealing component 8 is pressed to form a seal between the bracket body 4 and the third cover body 5.
[0032] like Figure 5 As shown, a fifth groove 522 is provided on one side of the extension plate 52 close to the bracket body 4 . The fifth groove 522 is recessed downward along the top of the extension plate 52 , and the fifth groove 522 passes through a side wall of one side of the third cover body 5 .
[0033] like Figure 1 As shown, the motor with integrated driver further includes a driving plate 7 . A cavity is formed together inside the bracket body 4 and inside the third cover body 5 , and the driving plate 7 is located in the cavity.
[0034] Specifically, the drive plate 7 is located radially inward of the bottom of the extension frame 42, and is combined with Figure 5 , Figure 6 The bracket body 4 includes a second limiting body 44, which extends downward along the bottom of the bracket plate 41 and extends out of the lower end of the extension frame 42, combined with Figure 8 The drive plate 7 is provided with at least two positioning holes 73, and the second limiting bodies 44 correspond to the positioning holes 73 one by one. The second limiting bodies 44 are inserted into the corresponding positioning holes 73 to limit the position of the drive plate 7, which is convenient for installation. The drive plate 7 includes a bottom bracket 72 located at the bottom, and the bottom bracket 72 is a row socket. The bottom bracket 72 is fixedly installed with the bottom of the drive plate 7, and the bottom bracket 72 is partially located on the radial outer side of the drive plate 7. Figure 5 As shown, the bottom bracket 72 is partially inserted into the fifth slot 522, and the extension frame 42 includes an edge plate 421 at the bottom, and the edge plate 421 is inserted into the fifth slot 522, and the fifth slot 522 and the edge plate 421 abut and press the upper and lower ends of the bottom bracket 72. Figure 1 In the figure, the right side of the base 72 is connected to the outside world, and an interface is provided at the end of the base 72 that is connected to the outside world for electrical connection with the outside.
[0035] like Figure 2 As shown, the fourth groove body 521 includes a groove wall 5211 located at the bottom, the groove wall 5211 and the top surface of the base 72 are located in the same plane and together form the installation surface of the sealing component 8, and the bottom surface of the sealing component 8 is close to the groove wall 5211 and the top surface of the base 72 to form a seal.
[0036] like Figure 5 , Figure 6 , Figure 7 As shown, the bracket body 4 includes a first limiter 43, which extends downward along the bottom of the bracket plate 41, and the first limiter 43 does not extend out of the bottom of the bracket plate 41. The third cover body 5 includes a third limiter 523, which extends upward along the upper bottom surface of the cover plate 51 to the upper end of the extension plate 52, and the first limiter 43 and the third limiter 523 respectively abut against the upper and lower ends of the drive plate 7 to form upper and lower limits on the drive plate 7 to prevent the drive plate 7 from vibrating during the operation of the motor.
[0037] like Figure 7 As shown, the cover plate 51 is provided with an extension seat 511, which extends upward along the upper bottom surface of the cover plate 51, and the extension seat 511 is provided with a plug hole 512, which passes through the cover plate 51, and is combined with Figure 1 , Figure 5 A light guide component 9 is inserted into the socket 512 and is threadedly connected to the socket 512. One end of the light guide component 9 is axially close to the drive board 7, and the drive board 7 is provided with an indicator light there. The other end of the light guide component 9 extends to the bottom of the cover plate 51. The light guide component 9 is made of a light-transmitting material. The light signal of the indicator light of the drive board 7 is released to the outside through the light guide component 9, so that the operator can understand the working condition of the motor in real time.
[0038] like Figure 1 As shown, a sleeve 6 is installed at the lower end of the shaft body 31, the shaft body 31 is inserted into the bottom of the sleeve 6, the side wall of the sleeve 6 is fixed to the shaft body 31 by a set screw, a magnet 61 is installed at the bottom of the sleeve 6, the magnet 61 is inserted into the sleeve 6 by an interference fit, and an encoder chip 71 is installed at the upper end of the drive plate 7, the encoder chip 71 is located directly below the magnet 61 and the two are arranged close to each other.
[0039] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A motor with integrated driver, comprising a motor housing (1), a stator group (2), and a rotor group (3), wherein the stator group (2) is mounted on the inner wall of the motor housing (1), and the rotor group (3) is located radially inside the stator group (2), characterized in that: The motor housing (1) further comprises a driving plate (7), a second cover body (12) being fixedly mounted on the bottom of the motor housing (1), a bracket body (4) being mounted on the bottom of the second cover body (12), a third cover body (5) being mounted on the bottom of the bracket body (4), a cavity being formed together inside the bracket body (4) and inside the third cover body (5), the driving plate (7) being located in the cavity, the driving plate (7) comprising a bottom support (72) being located at the bottom, the bottom support (72) being partially located radially outward of the driving plate (7), the bracket body (4) and the third cover body (5) respectively abutting against upper and lower ends of the bottom support (72), and the bracket body (4) and the third cover body (5) pressing the bottom support (72) up and down to fix the driving plate (7).
2. The motor with integrated driver according to claim 1, characterized in that: The support body (4) comprises an extension frame (42), the outer wall of the extension frame (42) is conical with a small outer diameter at the upper end and a large outer diameter at the lower end, and the drive plate (7) is located radially inside the bottom of the extension frame (42).
3. The motor with integrated driver according to claim 1, characterized in that: The bracket body (4) comprises a first limiting body (43), and the third cover body (5) comprises a third limiting body (523). The first limiting body (43) and the third limiting body (523) respectively abut against the upper and lower ends of the driving plate (7) to limit the driving plate (7).
4. The motor with integrated driver according to claim 1, characterized in that: The bracket body (4) comprises a second limiting body (44), the driving plate (7) is provided with at least two positioning holes (73), the second limiting body (44) corresponds to the positioning holes (73) one by one, and the second limiting body (44) is inserted into the corresponding positioning hole (73).
5. The motor with integrated driver according to claim 1, characterized in that: The third cover body (5) comprises an extension plate (52), a fifth groove body (522) is provided on a side of the extension plate (52) close to the bracket body (4), the base (72) is partially inserted into the fifth groove body (522), and the fifth groove body (522) passes through the side wall of the third cover body (5).
6. The motor with integrated driver according to claim 5, characterized in that: A fourth groove (521) is provided at the upper end of the extension plate (52), a sealing component (8) is installed in the fourth groove (521), and the bottom of the bracket body (4) is inserted into the fourth groove (521) and presses the sealing component (8) to form a seal between the bracket body (4) and the third cover body (5).
7. The motor with integrated driver according to claim 6, characterized in that: The fourth groove body (521) comprises a groove wall (5211) located at the bottom, the groove wall (5211) and the top surface of the base (72) are located in the same plane, and the bottom surface of the sealing component (8) is in close contact with the groove wall (5211) and the top surface of the base (72).
8. The motor with integrated driver according to claim 1, characterized in that: The third cover body (5) comprises a cover plate (51), the cover plate (51) is provided with an extension seat (511), the extension seat (511) is provided with a plug hole (512), the plug hole (512) passes through the cover plate (51), a light guide component (9) is inserted and installed in the plug hole (512), and one end of the light guide component (9) is close to the driving plate (7) axially.
9. The motor with integrated driver according to claim 1, characterized in that: The rotor assembly (3) comprises a shaft body (31), the lower end of the shaft body (31) passes through the second cover body (12), a shaft sleeve (6) is installed at the lower end of the shaft body (31), a magnet (61) is installed at the bottom of the shaft sleeve (6), and an encoder chip (71) is installed at the upper end of the drive plate (7), the encoder chip (71) is located directly below the magnet (61) and the two are arranged close to each other.
10. The motor with integrated driver according to claim 1, characterized in that: A first cover body (11) is fixedly mounted on the top of the motor housing (1); the upper and lower ends of the motor housing (1) are sealed by the first cover body (11) and the second cover body (12); a first extension body (111) is arranged at the bottom of the first cover body (11); the first extension body (111) is inserted into the upper end of the motor housing (1); a sealing ring is installed between the outer wall of the first extension body (111) and the inner wall of the motor housing (1); a second extension body (121) is arranged at the upper end of the second cover body (12); the second extension body (121) is inserted into the bottom of the motor housing (1); a sealing ring is installed between the outer wall of the second extension body (121) and the inner wall of the motor housing (1); a third extension body (122) is arranged at the lower end of the second cover body (12); the third extension body (122) is inserted into the top of the bracket body (4); a sealing ring is installed between the outer wall of the third extension body (122) and the inner wall of the bracket body (4).