Miniature low-voltage servo controller

Abstract

The utility model relates to the field of servo control, and discloses a miniature low-voltage servo controller, which comprises a radiating fin, the outer wall of the top end of the radiating fin is fixedly connected with a heat conduction silica gel pad, the outer wall of the top end of the heat conduction silica gel pad is fixedly connected with an inversion plate, and the outer wall of the top end of the inversion plate is fixedly connected with a knurled copper column. The outer wall of the knurled copper column is fixedly connected with a control panel, the outer wall of the top end of the knurled copper column is fixedly connected with an interface board, the outer wall of the bottom end of the interface board is fixedly connected with a lower capacitor board, the outer wall of the top end of the interface board is fixedly connected with a power terminal, and the outer wall of the top end of the interface board is fixedly connected with an overcurrent terminal. The outer wall of the top end of the interface board is fixedly connected with an upper capacitor board. The servo controller is ingenious in structure, small in occupied space, high in implementation power and convenient to install, and an existing servo controller can be effectively replaced with the servo controller.

Description

Technical Field

[0001] The utility model relates to the field of servo control, in particular to a micro low-voltage servo controller. Background Art

[0002] Servo controller, also known as servo drive, is a controller used to control servo motors. It is part of the servo system and is mainly used in high-precision positioning systems. It generally controls servo motors in three ways: position, speed and torque to achieve high-precision transmission system positioning. It is currently a high-end product of transmission technology. Servo controllers are an important part of modern motion control and are widely used in industrial robots, CNC machining centers, new energy, 3C, semiconductors and other automation equipment. In particular, servo drives used to control AC permanent magnet synchronous motors have become a research hotspot at home and abroad.

[0003] The existing servo controllers generally have the following problems: the structural design is relatively complicated, the space occupied is large, and it cannot adapt to miniaturized application scenarios; the installation process is complicated, the operation is troublesome, and it is not convenient to check and repair; the adaptability of the terminal is poor, and the terminal distribution of some products is random, which does not match the actual use scenario, and the support for the full closed-loop dual encoder is poor, and it is easy to entangle with each other, causing interference; the heat dissipation performance is poor, and it cannot meet the use of large current occasions, which is very unfavorable for electrolytic capacitors; the production process is complicated, and some products rely on special processes or manual operation; the debugging interface is poor, and some products lack a special debugging port, and the on-site debugging operation is cumbersome and complicated; the protection is poor, and some products expose the busbar capacitors, power terminals, etc. to inappropriate positions, which is easy to cause on-site short circuits or be easily disturbed by operations; the aesthetics is poor and the workmanship is rough; in addition, some products using axial capacitors have capacitors protruding outward, which is easy to cause risks due to collisions and other factors. Therefore, a miniature low-voltage servo controller is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a micro low-voltage servo controller, which aims to improve the problems of complicated structure and troublesome installation in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a miniature low-voltage servo controller, comprising a heat sink, the top outer wall of the heat sink is fixedly connected with a thermally conductive silicone pad, the top outer wall of the thermally conductive silicone pad is fixedly connected with an inverter board, the top outer wall of the inverter board is fixedly connected with a knurled copper column, the outer wall of the knurled copper column is fixedly connected with a control board, the top outer wall of the knurled copper column is fixedly connected with an interface board, the bottom outer wall of the interface board is fixedly connected with a lower capacitor plate, the top outer wall of the interface board is fixedly connected with a power terminal, and the top outer wall of the interface board is fixedly connected with an overcurrent terminal.

[0006] As a further description of the above technical solution:

[0007] The top outer wall of the interface board is fixedly connected with an upper capacitor plate, the top outer wall of the interface board is fixedly connected with a first terminal of an encoder, and the top outer wall of the interface board is fixedly connected with a second terminal of an encoder.

[0008] As a further description of the above technical solution:

[0009] The top outer wall of the interface board is fixedly connected with an LED status indicator light, the top outer wall of the interface board is fixedly connected with a communication terminal A, and the top outer wall of the interface board is fixedly connected with a communication terminal B.

[0010] As a further description of the above technical solution:

[0011] The top outer wall of the interface board is fixedly connected with a system power indicator light, the top outer wall of the interface board is fixedly connected with a USB debugging terminal, and the top outer wall of the interface board is fixedly connected with an IO terminal.

[0012] As a further description of the above technical solution:

[0013] The outer walls of the inverter board, the interface board and the control board are all fixedly connected to the overcurrent terminals.

[0014] As a further description of the above technical solution:

[0015] The bottom outer wall of the lower capacitor plate is flush with the bottom outer wall of the control board, and the lower capacitor plate is fixedly connected to the interface board via a pin row.

[0016] As a further description of the above technical solution:

[0017] The communication terminal A and the communication terminal B are arranged on the same side of the interface board.

[0018] The utility model has the following beneficial effects:

[0019] 1. In the utility model, the device has an ingenious structure, occupies a small space, realizes high power, and is easy to install. The use of this servo controller can effectively replace the existing servo controller.

[0020] 2. In the utility model, the device has rich interfaces, and the dual encoder terminals, dual communication terminals, IO terminals, debugging terminals and indicator lights are reasonably designed, which improves the performance of the servo system and increases the portability, reliability, ease of use and safety of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the main structure of a micro low-voltage servo controller proposed by the utility model.

[0022] Legend:

[0023] 1. Heat sink; 2. Thermal conductive silicone pad; 3. Inverter board; 4. Knurled copper column; 5. Control board; 6. Interface board; 7. Lower capacitor board; 8. Power terminal; 9. Upper capacitor board; 10. Overcurrent terminal; 11. Encoder first terminal; 12. Encoder second terminal; 13. LED status indicator; 14. Communication terminal A; 15. Communication terminal B; 16. System power indicator; 17. USB debugging terminal; 18. IO terminal. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments 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 creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1 The utility model provides an embodiment: a micro low-voltage servo controller, including a heat sink 1, a top outer wall of the heat sink 1 is fixedly connected with a thermally conductive silicone pad 2, a top outer wall of the thermally conductive silicone pad 2 is fixedly connected with an inverter board 3, the inverter board 3 and the heat sink 1 are connected through the thermally conductive silicone pad 2, when the inverter board 3 adopts an aluminum substrate, the inverter board 3 and the heat sink 1 are connected by materials such as thermally conductive gel, or directly welded and fixed, and the shape of the heat sink can be changed according to user needs.

[0026] Reference Figure 1 The top outer wall of the inverter board 3 is fixedly connected with a knurled copper column 4, which can be used for inter-board connection and fixation, and is also used as a system grounding path, thereby enhancing the system EMC performance. The outer wall of the knurled copper column 4 is fixedly connected with a control board 5. Between the inverter board 3 and the control board 5, the power part is connected through a customized overcurrent terminal 10, and the signal part is connected through a board-to-board connector. The top outer wall of the knurled copper column 4 is fixedly connected with an interface board 6. Between the control board 5 and the interface board 6, the power part is also connected through a customized overcurrent terminal 10, and the signal part is also connected through a board-to-board connector.

[0027] Reference Figure 1The bottom outer wall of the interface board 6 is fixedly connected with a lower capacitor plate 7, and the bottom outer wall of the lower capacitor plate 7 is flush with the bottom outer wall of the control board 5. The lower capacitor plate 7 is fixedly connected to the interface board 6 through a pin row. The lower capacitor plate 7 includes a decoupling capacitor and a necessary protective varistor. According to the different design powers, the number of capacitors on the lower capacitor 7 will be adjusted accordingly. The top outer wall of the interface board 6 is fixedly connected with a power terminal 8. The power terminal 8 and the inverter board 3 are connected by a customized overcurrent terminal 10. The overcurrent terminal 10 not only ensures that the rated current requirements are met, but also plays a role in fixing and supporting the structure of the entire machine. The power terminal 8 is used to connect the system external power supply and the power line of the motor, as well as the system grounding signal.

[0028] Reference Figure 1 The top outer wall of the interface board 6 is fixedly connected to the overcurrent terminal 10, and the outer walls of the inverter board 3, the interface board 6 and the control board 5 are all fixedly connected to the overcurrent terminal 10. The top outer wall of the interface board 6 is fixedly connected to the upper capacitor plate 9, and the upper capacitor plate 9 is fixedly connected to the interface board 6 through a pin row. The upper capacitor plate 9 is a single-sided board, and the back side contains a decoupling capacitor and necessary protection varistor. No device is welded on the front side. In addition to providing a decoupling capacitor function for the system, it also shields and protects the circuit on the interface 6, preventing the risks of accidental contact during industrial field wiring, accidental contact during debugging, and short circuit caused by the falling of conductive objects, thereby improving the safety of the system.

[0029] Reference Figure 1 The top outer wall of the interface board 6 is fixedly connected with a first encoder terminal 11, and the first terminal 11 supports absolute encoder, incremental encoder and Hall encoder input. The top outer wall of the interface board 6 is fixedly connected with a second encoder terminal 12, and the second terminal 12 supports absolute encoder, incremental encoder and resolver encoder input. The top outer wall of the interface board 6 is fixedly connected with an LED status indicator 13 for indicating the working status of the system. The LED status indicator 13 includes three colors of red, green and yellow, or is composed of 3 LED lights. The top outer wall of the interface board 6 is fixedly connected with a communication terminal A14, and the top outer wall of the interface board 6 is fixedly connected with a communication terminal B15. The communication terminal A14 and the communication terminal B15 can be used for CAN communication and 485 communication, or for industrial network communication, such as EtherCAT signal.

[0030] Reference Figure 1The communication terminal A14 and the communication terminal B15 are arranged on the same side of the interface board 6, which is very convenient for wiring and system cascading. A system power indicator light 16 is fixedly connected to the top outer wall of the interface board 6. The system power indicator light 16 is used to indicate that the system power supply is normal. The system power indicator light 16 and the LED status indicator light 13 are distributed in different positions to avoid interference when they are lit up, thereby enhancing the system indication function. A USB debugging terminal 17 is fixedly connected to the top outer wall of the interface board 6. The USB debugging terminal 17 is located in the center of the interface board, which is very suitable for production testing or on-site debugging. On the one hand, the height of the USB debugging terminal 17 is slightly higher than the upper capacitor plate 9, so that the upper capacitor plate 9 protects the plugging and unplugging of the debugging wiring to avoid accidental touching of surrounding devices. On the other hand, the USB debugging terminal 17 is far away from the two sets of encoder terminals, the power terminal 8, the IO terminal 18, and the two sets of communication terminals, which is conducive to safe and convenient debugging work in the complex environment of the industrial site.

[0031] The top outer wall of the interface board 6 is fixedly connected with an IO terminal 18, which supports signals commonly used in servos such as DI, DO, AI, STO, and encoder output signals. The layout of the power terminal 8, two encoder terminals, and IO terminal 18 can easily support a fully closed-loop motion control system, and is also very convenient for users to connect wires. The two sets of encoder terminals, two sets of communication terminals, and IO terminal 18 on the interface board 6 all include bayonet mounts, which can ensure the firmness of the wiring and adapt to the impact requirements of industrial sites.

[0032] Working principle: In this device, the first encoder terminal 11 supports absolute encoder, incremental encoder and Hall encoder input, the second encoder terminal 12 supports absolute encoder, incremental encoder and resolver encoder input, communication terminal A14 and communication terminal B15 are used for CAN communication and 485 communication, or for industrial network communication, such as EtherCAT signal, IO terminal 18 supports DI, DO, AI, STO, encoder output signals and other signals commonly used in servo, USB debugging terminal 17 is in a position suitable for production testing or on-site debugging, and indicates the system working status through LED status indicator 13, and the system power indicator 16 indicates that the system power supply is normal. The two designs are relatively reasonable, which improves the performance of the servo system. The device occupies a small space, is more portable and easy to install, and is more reliable to use and has a clever structure.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A miniature low-voltage servo controller, comprising a heat sink (1), characterized in that: The top outer wall of the heat sink (1) is fixedly connected to a thermally conductive silicone pad (2), the top outer wall of the thermally conductive silicone pad (2) is fixedly connected to an inverter board (3), the top outer wall of the inverter board (3) is fixedly connected to a knurled copper column (4), the outer wall of the knurled copper column (4) is fixedly connected to a control board (5), the top outer wall of the knurled copper column (4) is fixedly connected to an interface board (6), the bottom outer wall of the interface board (6) is fixedly connected to a lower capacitor board (7), the top outer wall of the interface board (6) is fixedly connected to a power terminal (8), and the top outer wall of the interface board (6) is fixedly connected to an overcurrent terminal (10).

2. A micro low voltage servo controller according to claim 1, characterized in that: The top outer wall of the interface plate (6) is fixedly connected to an upper capacitor plate (9), the top outer wall of the interface plate (6) is fixedly connected to a first encoder terminal (11), and the top outer wall of the interface plate (6) is fixedly connected to a second encoder terminal (12).

3. A micro low voltage servo controller according to claim 1, characterized in that: The top outer wall of the interface board (6) is fixedly connected with an LED status indicator light (13), the top outer wall of the interface board (6) is fixedly connected with a communication terminal A (14), and the top outer wall of the interface board (6) is fixedly connected with a communication terminal B (15).

4. A micro low voltage servo controller according to claim 1, characterized in that: The top outer wall of the interface board (6) is fixedly connected to a system power indicator light (16), the top outer wall of the interface board (6) is fixedly connected to a USB debugging terminal (17), and the top outer wall of the interface board (6) is fixedly connected to an IO terminal (18).

5. The micro low voltage servo controller according to claim 1, characterized in that: The outer walls of the inverter board (3), the interface board (6) and the control board (5) are all fixedly connected to the overcurrent terminal (10).

6. A micro low voltage servo controller according to claim 1, characterized in that: The outer wall of the bottom end of the lower capacitor plate (7) is flush with the outer wall of the bottom end of the control board (5), and the lower capacitor plate (7) is fixedly connected to the interface board (6) via a row of pins.

7. A micro low voltage servo controller according to claim 3, characterized in that: The communication terminal A (14) and the communication terminal B (15) are arranged on the same side of the interface board (6).

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