CN115173749A

CN115173749A - Servo driver with modularized internal structure unit

Info

Publication number: CN115173749A
Application number: CN202210896297.9A
Authority: CN
Inventors: 唐红; 刘波; 汤小平
Original assignee: Tsino Dynatron Electrical Technology Beijing Co ltd
Current assignee: Tsino Dynatron Electrical Technology Beijing Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-10-11

Abstract

The invention discloses a servo driver with modularized internal structure units, which comprises a power supply module, a plurality of motor modules of different types and a shared control board, wherein the power supply module is connected with each motor module and the control board through an inter-shaft signal board, and the power supply module is connected with each motor module through a direct current bus board. The modular design is adopted, each module forms an independent unit structure for combined installation, the modules are good in independence and do not interfere with each other, the installation is simple and convenient, the disassembly is easy, the debugging and the maintenance are convenient, the flexibility is higher, and the stability and the reliability of the system are greatly improved; the power supply module is respectively connected with the motor power board of each motor module and the shared control board through an inter-shaft signal board, so that the transmission of communication signals is ensured; the power module passes through the direct current generating line board with every electrical machinery module's motor power board respectively and is connected, realizes power transmission, replaces traditional copper bar to connect, and is with low costs, and occupation space is little.

Description

Servo driver with modularized internal structure unit

Technical Field

The invention relates to the technical field of servo control, in particular to a servo driver with modularized internal structural units.

Background

The servo driver is also called servo controller or servo amplifier, which is a controller for controlling servo motor, the action of the controller is similar to that of a frequency converter acting on a common alternating current motor, the controller belongs to a part of servo system, and the controller is mainly applied to high-precision positioning system.

At present, in a high-power servo product, a driver structure does not introduce a modular design, and an independent unit cannot be formed, so that a series of products are unfixed in size, and interfaces are not unique, so that the overall production efficiency of the system is low, the production cost is high, and the maintenance cost is high; in addition, the existing servo driver also has the problems of relatively complex structure, poor heat dissipation, large occupied space and the like.

Disclosure of Invention

To this end, the present invention provides a servo driver with a modularized internal structure unit to solve one or more of the above technical problems.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a servo driver of inner structure unit modularization, includes power module, the motor module of a plurality of different grade types and the control panel of a sharing, power module with every motor module and the control panel passes through the inter-axle signal board and connects in order to receive every motor module's power signal, power module with every motor module passes through the direct current bus-bar board and is connected in order to transmit electric energy.

Furthermore, the servo driver with the modularized internal structure unit further comprises a plate-shaped radiator, and the power module and the motor module are both arranged above the radiator.

Further, the power module includes a power unit, a bottom surface of the power unit is attached to a top surface of the heat sink, the motor module includes a motor power unit, and the bottom surface of the motor power unit is attached to the top surface of the heat sink.

Further, power module still includes the power board, the power board set up in the top and both intervals of heating panel set up, the top of power unit is fixed in the power board downside, motor module still includes the motor power board, the motor power board set up in the top and both intervals of heating panel set up, the top of motor power unit is fixed in the motor power board downside.

Furthermore, the radiator is fixedly connected with the power supply power board and the motor power board through a plurality of first supporting pieces.

Furthermore, the direct current bus board, the power supply power board and the motor power board are fixedly connected through a plurality of second supporting pieces.

Further, the control panel set up in motor power board's top and both interval set up, the control panel with motor power board passes through a plurality of third support piece and connects fixedly.

Further, the support piece is a hexagonal copper cylinder.

Furthermore, the inter-shaft signal plate is connected with the power module, the motor module and the control plate through welding pins.

Further, the servo driver with the modularized internal structure unit further comprises an upper cover, an open box-type structure is arranged at the lower end of the upper cover, the upper cover is detachably fixed on the upper side of the radiator, and the power module, the motor modules of different types and the control board are covered in a space formed by the upper cover and the radiator by the upper cover.

The invention has the following advantages:

the servo driver with modularized internal structure units provided by the invention adopts a modularized design, each module forms an independent unit structure for combined installation, the modules have good independence and are not interfered with each other, the installation is simple and convenient, the disassembly is easy, the debugging and the maintenance are convenient, the flexibility is higher, and the stability and the reliability of a system are greatly improved; the power supply module is respectively connected with the motor power board of each motor module and the shared control board through an inter-shaft signal board, so that the transmission of communication signals is ensured; the power module passes through the direct current generating line board with every electrical machinery module's motor power board respectively and is connected, realizes power transmission, replaces traditional copper bar to connect, and is with low costs, and occupation space is little.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art will understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical essence, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes, should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural diagram of a servo driver with modularized internal structural units according to an embodiment of the present invention;

FIG. 2 is a top view of a modular servo drive with its internal structural units (with the top cover and control panel removed) according to an embodiment of the present invention;

FIG. 3 is a bottom perspective view of an internal building block modular servo drive provided by an embodiment of the present invention (with the heat sink removed);

FIG. 4 is an enlarged view of A in FIG. 1;

FIG. 5 is an enlarged view of B in FIG. 1;

FIG. 6 is an enlarged view of C in FIG. 1;

fig. 7 is an enlarged view of D in fig. 3.

In the figure: 10-upper cover; 20-a radiator; 30-a power supply module; 301-mains power board; 302-a power supply power unit; 40-a motor module; 401-motor power board; 402-a motor power unit; 50-a control panel; 60-inter-axis signal plates; 70-a direct current bus board; 801-a first support; 802-a second support; 803-third support member; 90-Pin.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship thereof may be made without substantial technical changes.

As shown in fig. 1 to 7, the present embodiment provides a servo driver whose internal structural units are modularized, including a power module 30, a plurality of different types of motor modules 40, and a common control board 50; the power module 30 is connected with each motor module 40 and the control board 50 through the inter-shaft signal board 60 to receive the power signal of each motor module 40, so as to ensure the transmission of the communication signal; the power module 30 is connected with each motor module 40 through the direct current bus bar plate 70 to transmit electric energy, the traditional copper bar connection is replaced, the cost is low, and the occupied space is small; by adopting a modular design method, each motor module 40 is designed into an independent unit structure, and different motor modules 40 are installed in a combined mode, so that the independence between the motor modules 40 is good, the motor modules do not interfere with each other, the installation is simple and convenient, the disassembly is easy, the debugging and the maintenance are convenient, the flexibility is higher, and the stability and the reliability of the servo driver are greatly improved.

In the present embodiment, the servo driver with the modularized internal structural unit further includes a plate-shaped heat sink 20, and the power module 30 and the motor module 40 are both disposed above the heat sink 20 and both radiate heat through the heat sink 20. Specifically, the power module 30 includes a power unit 302, a bottom surface of the power unit 302 is attached to a top surface of the heat sink 20, the motor module 40 includes a motor power unit 402, and a bottom surface of the motor power unit 402 is attached to the top surface of the heat sink 20; by adopting the design of attaching the power supply unit 302 and the motor power unit 402 to each other, the heat of the power supply unit 302 and the motor power unit 402 can be efficiently transferred to the heat sink 20, and thus the heat can be dissipated through the heat sink 20. Wherein, power module 30 still includes power supply board 301, power supply board 301 sets up in the top of heating panel and both intervals set up, power supply unit 302's top is fixed in power supply board 301 downside, motor module 40 still includes motor power board 401, motor power board 401 sets up in the top of heating panel and both intervals set up, motor power unit 402's top is fixed in motor power board 401 downside, radiator 20 and power supply board 301, motor power board 401 is connected fixedly through a plurality of first support piece 801, thus, realize the interval setting of power board and radiator 20, and guarantee that power unit and radiator 20 paste mutually. The first support 801 may be a hexagonal copper cylinder; the lower end of the first support 801 is connected to the heat sink 20, and the upper end is connected to the power board; before assembly, the first support 801 may be fixed to the upper surface of the heat sink 20, and then the power board is fixed by being placed on top of the first support 801.

The upper surfaces of the power supply board 301 and the motor board 401 are provided with a plurality of second supporting members 802, and the dc bus board 70 is fixedly connected with the power supply board 301 and the motor board 401 through the plurality of second supporting members 802. The second support 802 may be a hexagonal copper cylinder; before assembly, the second supporting member 802 may be fixed on the upper surfaces of the power board 301 and the motor power board 401, and then the dc bus board 70 is fixed on top of the second supporting member 802, so as to transport electric energy through the dc bus board 70.

The upper surface of the motor power board 401 is provided with a plurality of third supporting members 803, the control board 50 is disposed above the motor power board 401 and is disposed at an interval therebetween, and the control board 50 and the motor power board 401 are fixedly connected by the plurality of third supporting members 803. Likewise, the third support member 803 may be a hexagonal copper cylinder; before assembly, the third support 803 may be fixed to the power board 301, and then the control board 50 is fixed by placing it on top of the first support 801.

In this embodiment, the inter-shaft signal board 60 is connected to the power module 30, the motor module 40 and the control board 50 through the welding pins 90, so as to realize communication.

In this embodiment, the servo driver with modularized internal structural units further includes an upper cover 10, the upper cover 10 is provided with an open box structure for the lower end, the upper cover 10 is detachably fixed on the upper side of the heat sink 20, for example, by screws, and the upper cover 10 covers the power module 30, the plurality of different types of motor modules 40, and the control board 50 in the space formed by the upper cover 10 and the heat sink 20, so as to protect the power module 30, the plurality of different types of motor modules 40, and the control board 50 without shielding or affecting the heat dissipation effect of the heat sink 20.

The power module, each motor module and the control panel are all packaged into an independent module independently, and when the servo driver is assembled, a plurality of motor modules and the power module are selected for packaging. The types of the motor modules are three, namely a motor module A, a motor module B and a motor module C; selecting a corresponding motor module to assemble according to the current value of each axis of the servo driver, for example, a 6-axis servo driver needs to be configured, and the motor modules selected corresponding to the current values of the 1 st to 6 th axes of the servo driver are a motor module C, a motor module A, a motor module B, a motor module A and a motor module B in sequence. For another example, a 4-axis servo driver needs to be configured, and the motor modules selected corresponding to the current values of the 1 st axis to the 4 th axis of the servo driver are the motor module C, the motor module B, the motor module a and the motor module a in sequence. The motor module A and the motor module B are the same in external dimension. The number of the motor modules can be expanded according to configuration requirements, and different motor models can be correspondingly configured; when the motor modules are expanded, the height of the servo driver is fixed, and the width of the driver is changed only according to the number of the added motor modules.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, it is intended that all such modifications and alterations be included within the scope of this invention as defined in the appended claims.

Claims

1. The servo driver is characterized by comprising a power supply module, a plurality of motor modules of different types and a shared control board, wherein the power supply module is connected with each motor module and the control board through an inter-shaft signal board to receive power signals of each motor module, and the power supply module is connected with each motor module through a direct current bus board to transmit electric energy.

2. The servo driver of claim 1, further comprising a plate-shaped heat sink, wherein the power module and the motor module are disposed above the heat sink.

3. The modular actuator of claim 2, wherein the power module comprises a power unit, a bottom surface of the power unit is attached to a top surface of the heat sink, and the motor module comprises a motor power unit, a bottom surface of the motor power unit is attached to a top surface of the heat sink.

4. The modular servo driver of claim 3, wherein the power module further comprises a power board disposed above and spaced apart from the heat sink, the top of the power unit is fixed to the underside of the power board, the motor module further comprises a motor power board disposed above and spaced apart from the heat sink, and the top of the motor power unit is fixed to the underside of the motor power board.

5. The modular actuator as claimed in claim 4, wherein the heat sink is fixed to the power board and the motor power board by a plurality of first supporting members.

6. The modular actuator of claim 4, wherein the DC bus board is fixed to the power board and the motor board by a plurality of second support members.

7. The servo driver of claim 4, wherein the control board is disposed above and spaced from the motor power board, and the control board and the motor power board are connected and fixed by a plurality of third supporting members.

8. An inner building unit modular servo driver according to any of claims 5-7, wherein the support is a hexagonal copper cylinder.

9. The modular actuator as claimed in claim 1, wherein the inter-shaft signal board is connected to the power module, the motor module and the control board by welding pins.

10. The servo driver of claim 2, further comprising an upper cover having an open box structure at a lower end, wherein the upper cover is detachably fixed to an upper side of the heat sink, and the upper cover covers the power module, the plurality of different types of motor modules, and the control board in a space formed by the upper cover and the heat sink.