Integrated servo motor

Abstract

The utility model discloses an integrated servo motor, and belongs to the technical field of servo motors, the integrated servo motor comprises a motor body, the motor body is sleeved with a shell with cooling fins, the shell comprises a top plate, a plurality of capacitors are installed below the top plate, a controller is installed on the top plate, and the controller is connected with the cooling fins. The controller comprises a top shell and a driving circuit board set installed in the top shell, the top of the capacitor penetrates through the top plate, and the top shell is connected with the driving circuit board set. And the position structure arrangement of the electronic components and the driving circuit board group is further optimized, so that the integrated servo motor is more reasonable in structural layout and smaller in size.

Description

Technical Field

[0001] This application relates to the technical field of servo motors, and in particular to an integrated servo motor. Background Art

[0002] A servo motor is an engine that controls the operation of mechanical components in a servo system and is an auxiliary motor indirect speed change device. The servo motor can control speed and position accuracy accurately, and can convert voltage signals into torque and speed to drive the control object. Compared with a single-phase asynchronous motor, the servo motor has three significant characteristics: large starting torque, a wider operating range, and no self-rotation phenomenon.

[0003] An integrated servo motor, as the name implies, is a servo motor integrated with a servo driver, that is, an integrated product that integrates the servo driver and the servo motor. A large number of servo drive power units are dispersed from the original centralized installation in the cabinet to the servo motor shafts at each moving station of the equipment. At this time, only a set of rectifier power units matching the integrated drive servo motor system needs to be installed and arranged in the electrical cabinet. Compared with the traditional hardware system layout of discrete servo drives and motors, this will greatly save the size of the electrical cabinet and the space inside the cabinet. More importantly, the extremely small number of components in the cabinet and the smaller cabinet size will help optimize various system costs.

[0004] Related prior art such as the Chinese patent application "Dual-winding integrated AC permanent magnet servo motor", application number: CN202410194145.3; discloses a dual-winding integrated AC permanent magnet servo motor, including: a motor body, an installation cavity is formed in the motor body, at least two stator-rotor assemblies are arranged in the installation cavity, at least two stator-rotor assemblies are both connected to the motor shaft of the motor body, and at least two stator-rotor assemblies are arranged in sequence along the length direction of the motor shaft; a control drive assembly, connected to the outer wall surface of the motor body, the control drive assembly is electrically connected to the stator-rotor assembly, and the control drive assembly is adapted to control different stator-rotor assemblies to output different or the same torque. According to the dual-winding integrated AC permanent magnet servo motor of the present application, a single motor can output multiple torques, which can meet the usage environments of different speeds and multiple torques.

[0005] However, the structural design and component layout of the existing integrated servo motor are not the optimal solutions, and there is still room for further improvement. This application further improves the structure of the existing integrated servo motor. Summary of the Utility Model

[0006] The technical problem to be solved by this application is to provide an integrated servo motor, further optimizing the position structure setting of electronic components and the drive circuit board group, making the structure layout of the integrated servo motor more reasonable and the volume more compact.

[0007] The technical solution adopted by this application is: an integrated servo motor, including a motor body, an outer shell with heat sinks is sleeved on the motor body, the outer shell includes a top plate, a capacitor bank is installed below the top plate, and a controller is installed on the top plate. The controller includes a top shell and a drive circuit board group installed in the top shell. The top of the capacitor bank passes through the top plate and the top shell to be connected to the drive circuit board group.

[0008] Compared with the prior art, the advantages of this application are that in the technical solution of this application, the volume structure of the capacitor bank is relatively large. If it is uniformly installed in the controller, it will significantly increase the structural volume of the entire controller, inevitably appearing top-heavy and lacking stability in the whole servo motor. This application splits some electronic components of the entire controller and concentrates them in the outer shell of the motor body, thus making the structure and volume of the entire controller more reasonable and the overall structure more compact and small. Moreover, the outer shell of this application is equipped with heat sinks. By arranging the capacitor bank below the top plate, it can well dissipate the heat generated when the electronic components work, ensuring a good working environment for this application.

[0009] In some embodiments of this application, the drive circuit board group of this application includes a main board and a sub-board that are electrically connected. The sub-board is arranged close to the top plate, the sub-board faces the capacitor bank, the main board is located above the sub-board, and the front side of the main board faces upward, and there is a gap between the main board and the sub-board.

[0010] When arranging electronic components on a circuit board, it is divided into a front side and a back side. The front side is used to install electronic components, and the back side is used to lay out wires. Then, in the case where the positions of electronic components are not single, it is relatively difficult to realize the circuit layout through a single circuit board. This application uses two main boards and sub-boards with different orientations to respectively realize the connection of the capacitor bank on the drive circuit board and the connection of other electronic components.

[0011] In some embodiments of this application, the capacitor bank includes multiple capacitors, and the multiple capacitors are regularly arranged at the rear end of the top plate. A heat sink is arranged along the axial direction below the top plate, and the heat sink covers the front end of the top plate. This application aggregates the capacitor bank at the rear end of the top plate, relatively aggregates the multiple capacitors, reduces the layout space of the capacitors, reduces the size of the sub-board, and reduces the production cost of the product.

[0012] In this application, for the convenience of description, the end where the drive shaft of the motor body is located is taken as the front end, and the end far from the drive shaft is taken as the rear end of the servo motor.

[0013] In some embodiments of the present application, part of the heat sink extends towards the end where the capacitor bank is located, and heat sinks are arranged at the left and right ends of the capacitor bank. The above is the preferred structural solution of the present application, which can achieve a good heat dissipation effect.

[0014] In some embodiments of the present application, the front and rear end faces of the housing are open, the front end of the motor body extends out of the housing, a cooling fan is installed at the rear end of the housing, and a cooling mesh cover is arranged on the rear end face of the motor body.

[0015] When the servo motor of the present application is working, its cooling fan will work, and the air flow will penetrate through the front and rear sides of the entire housing to accelerate heat dissipation. Cooperating with the heat sinks on the housing, good heat dissipation performance is achieved. In the present application, a cooling mesh cover is arranged on the rear end face of the motor body, which realizes the air flow and at the same time prevents foreign objects from entering the cooling fan.

[0016] In some embodiments of the present application, installation feet are arranged along the length direction below the top plate, the installation feet are erected on the motor body, and there is a gap between the heat sink and the motor body. The arrangement of the installation feet in the present application realizes the installation of the top plate and the motor body, and leaves a gap between the heat sink and the motor body, so that the air circulation is smoother.

[0017] In some embodiments of the present application, the housing further includes a bottom plate and side plates arranged on the left and right sides of the bottom plate. Installation feet are arranged on both the bottom plate and the side plates. The installation feet are arranged along the length direction of the housing, and the bottom plate and the side plates are connected to the motor plate body through the installation feet.

[0018] That is, in the present application, the arrangement of the installation feet realizes a gap between the outer peripheral surface of the housing and the motor body, which is convenient for air circulation and realizes rapid heat dissipation.

[0019] In some embodiments of the present application, installation slots are arranged on the outer surface of the motor body, and part of the installation feet are embedded in the installation slots.

[0020] Specifically, the preferred structural solution of the present application is that the cross section of the installation foot is in a π-shaped structure, the installation slot penetrates through the front end face and the rear end face of the motor body, and the installation foot is inserted into the installation slot from one end of the installation slot.

[0021] In some embodiments of the present application, a side shell is installed on one side of the housing. Wiring terminals are arranged on the side surfaces of the side shell and the top shell close to each other. The two wiring terminals are connected through a channel tube, and the wire passes out from the wiring terminal and passes through the channel tube.

[0022] On the basis of conforming to the common knowledge in the art, the above embodiments can be combined arbitrarily. Brief Description of the Drawings

[0023] The present application will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present application. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0024] Figure 1 Structural schematic of the present application Figure 1 ;

[0025] Figure 2 Structural schematic of the present application Figure 2 ;

[0026] Figure 3 Cross-sectional view of the present application;

[0027] Figure 4 Internal structure schematic diagram of the present application.

[0028] Among them, the specific descriptions of the reference numerals are as follows: 1, motor body; 2, heat sink; 3, housing; 31, top plate; 32, side plate; 33, bottom plate; 4, capacitor bank; 5, top shell; 6, main board; 7, sub-board; 8, mounting feet; 9, side shell; 10, terminal; 11, channel pipe; 12, cooling fan; 13, cooling mesh cover. Detailed Embodiment

[0029] The present application will be described in detail below in conjunction with the drawings.

[0030] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] An integrated servo motor, Embodiment 1 is as Figures 1 to 3As shown in the figure, it includes a motor body 1, and an outer shell 3 with heat sinks 2 is sleeved outside the motor body 1. The outer shell 3 includes a top plate 31. A capacitor bank 4 is installed below the top plate 31. The outer shell 3 of this application is provided with heat sinks 2, and the capacitor bank 4 is arranged below the top plate 31, which can well dissipate the heat generated when the electronic components work, ensuring a good working environment for this application. A controller is installed on the top plate 31. The controller includes a top shell 5 and a driving circuit board group installed in the top shell 5. The top of the capacitor bank 4 passes through the top plate 31, the top shell 5 and is connected to the driving circuit board group. In this application, some electronic components of the entire controller are disassembled and concentrated in the outer shell 3 of the motor body 1, so that the structure and volume of the entire controller are more reasonable, and the overall structure is more compact and small.

[0032] Embodiment 2, as shown in FIGS. 1 to Figure 4 As shown in the figure, in this application, for the convenience of description, the end where the driving shaft of the motor body 1 is located is taken as the front end, and the corresponding end far from the driving shaft is the rear end of the servo motor.

[0033] The driving circuit board group of this application includes a main board 6 and a sub-board 7 that are electrically connected. The sub-board 7 is arranged close to the top plate 31, and the sub-board 7 faces the capacitor bank 4. The main board 6 is located above the sub-board 7, and the front side of the main board 6 faces upward. There is a gap between the main board 6 and the sub-board 7. When arranging electronic components on the circuit board, it is divided into a front side and a back side. The front side is used to install electronic components, and the back side is used to arrange wires. Then, in the case where the positions of the electronic components are not single, it is relatively difficult to realize the circuit layout through a single circuit board. This application uses two main boards 6 and sub-boards 7 with different orientations to respectively realize the connection of the capacitor bank 4 on the driving circuit board and the connection of other electronic components.

[0034] The capacitor bank 4 includes a plurality of capacitors. The plurality of capacitors are regularly arranged at the rear end of the top plate 31. Heat sinks 2 are arranged along the axial direction below the top plate 31, and the heat sinks 2 cover the front end of the top plate 31. In this application, the capacitor bank 4 is gathered at the rear end of the top plate 31, and the plurality of capacitors are relatively gathered, reducing the layout space of the capacitors, reducing the size of the sub-board 7, and reducing the production cost of the product.

[0035] Part of the heat sinks 2 extend towards the end where the capacitor bank 4 is located, and heat sinks 2 are arranged at the left and right ends of the capacitor bank 4. The above is the preferred structural solution of this application, which can achieve a good heat dissipation effect.

[0036] The front and rear end faces of the outer shell 3 are open. The front end of the motor body 1 extends out of the outer shell 3. A cooling fan 12 is installed at the rear end of the outer shell 3, and a cooling mesh cover 13 is arranged on the rear end face of the motor body 1.

[0037] When the servo motor of the present application is operating, its cooling fan 12 will operate, and the air flow will penetrate the front and rear sides of the entire housing 3 to accelerate heat dissipation. In cooperation with the heat sink 2 on the housing 3, good heat dissipation performance is achieved. In the present application, a cooling mesh cover 13 is provided on the rear end face of the motor body 1, which realizes the circulation of the air flow and at the same time prevents foreign objects from entering the cooling fan 12.

[0038] Installation feet 8 are provided along the length direction below the top plate 31, and the installation feet 8 are mounted on the motor body 1, and there is a gap between the heat sink 2 and the motor body 1. The setting of the installation feet 8 in the present application realizes the installation of the top plate 31 and the motor body 1, and leaves a gap between the heat sink 2 and the motor body 1, so that the air circulation is smoother.

[0039] The housing 3 further includes a bottom plate 33 and side plates 32 provided on the left and right sides of the bottom plate 33. Installation feet 8 are provided on both the bottom plate 33 and the side plates 32, and the installation feet 8 are arranged along the length direction of the housing 3. The bottom plate 33 and the side plates 32 are connected to the motor plate body through the installation feet 8. That is, in the present application, the setting of the installation feet 8 realizes that there is a gap between the outer peripheral surface of the housing 3 and the motor body 1, which facilitates air circulation and realizes rapid heat dissipation.

[0040] Installation slots are provided on the outer surface of the motor body 1, and part of the installation feet 8 are embedded in the installation slots. Specifically, the preferred structural solution of the present application is: the cross section of the installation feet 8 is in a π-shaped structure, the installation slots penetrate the front end face and the rear end face of the motor body 1, and the installation feet 8 are inserted into the installation slots from one end of the installation slots.

[0041] A side shell 9 is installed on one side of the housing, and wiring terminals 10 are provided on the side surfaces of the side shell 9 and the top shell 5 close to each other. The two wiring terminals 10 are connected through a channel tube 11, and the electric wire passes out from the wiring terminal 10 and passes through the channel tube 11.

[0042] The other contents of the second embodiment are the same as those of the first embodiment.

[0043] The above has introduced the present application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the present application and the core idea. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can still be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An integrated servo motor, characterized in that: The invention comprises a motor body (1), wherein the motor body (1) is provided with a shell (3) with a heat sink (2), wherein the shell (3) comprises a top plate (31), a capacitor group (4) is installed below the top plate (31), a controller is installed on the top plate (31), and the controller comprises a top shell (5) and a drive circuit board group installed in the top shell (5), and the top of the capacitor group (4) passes through the top plate (31), and the top shell (5) is connected to the drive circuit board group.

2. The integrated servo motor according to claim 1, characterized in that: The driving circuit board group includes a main board (6) and a sub-board (7) which are electrically connected, wherein the sub-board (7) is arranged close to the top board (31), the sub-board (7) is arranged toward the capacitor group (4), the main board (6) is located above the sub-board (7), and the main board (6) is arranged with its front side facing upwards, and there is a gap between the main board (6) and the sub-board (7).

3. An integrated servo motor according to claim 1 or 2, characterized in that: The capacitor group (4) comprises a plurality of capacitors, which are regularly arranged at the rear end of the top plate (31), and a heat sink (2) is arranged below the top plate (31) along its axial direction, with the heat sink (2) covering the entire front end of the top plate (31).

4. The integrated servo motor according to claim 3, characterized in that: Part of the heat sink (2) extends towards the end where the capacitor group (4) is located, and heat sinks (2) are arranged at the left and right ends of the capacitor group (4).

5. The integrated servo motor according to claim 1, characterized in that: The front and rear end surfaces of the housing (3) are open, the front end of the motor body (1) extends out of the housing (3), a cooling fan (12) is installed at the rear end of the housing (3), and a cooling mesh cover (13) is provided at the rear end surface of the motor body (1).

6. The integrated servo motor according to claim 1, characterized in that: A mounting foot (8) is provided below the top plate (31) along its length direction; the mounting foot (8) is mounted on the motor body (1); and a distance exists between the heat sink (2) and the motor body (1).

7. The integrated servo motor according to claim 1, characterized in that: The housing (3) further comprises a bottom plate (33) and side plates (32) arranged on the left and right sides of the bottom plate (33); the bottom plate (33) and the side plates (32) are both provided with mounting feet (8); the mounting feet (8) are arranged along the length direction of the housing (3); the bottom plate (33) and the side plates (32) are connected to the motor plate body via the mounting feet (8).

8. The integrated servo motor according to claim 7, characterized in that: The outer surface of the motor body (1) is provided with a mounting groove, and the mounting foot (8) is partially embedded in the mounting groove.

9. The integrated servo motor according to claim 8, characterized in that: The cross section of the mounting foot (8) is a π-shaped structure, the mounting notch penetrates the front end face and the rear end face of the motor body (1), and the mounting foot (8) is inserted into the mounting notch from one end of the mounting notch.

10. The integrated servo motor according to claim 1, characterized in that: A side shell (9) is installed on one side of the housing (3), and a wiring terminal (10) is provided on a side surface of the side shell (9) close to the top shell (5). The two wiring terminals (10) are connected by a channel tube (11), and the wires pass through the wiring terminals (10) and the wires pass through the channel tube (11).

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