CN219592239U - Low-voltage servo driver and servo driving system - Google Patents
Low-voltage servo driver and servo driving system Download PDFInfo
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- CN219592239U CN219592239U CN202320405296.XU CN202320405296U CN219592239U CN 219592239 U CN219592239 U CN 219592239U CN 202320405296 U CN202320405296 U CN 202320405296U CN 219592239 U CN219592239 U CN 219592239U
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model provides a low-voltage servo driver, comprising: an interface board including at least one input/output interface for receiving a first signal from the outside and/or outputting a second signal to the outside; a control board in communication with the interface board for receiving the first signal of the interface board and/or outputting the second signal to the outside via the interface board; the power interface is used for connecting a direct-current power supply to obtain direct-current voltage; the power board is communicated with the control board and connected with the power interface, and is used for sampling the current and/or voltage of the load to obtain a sampling signal and driving the load; the control board generates a control signal based on the sampling signal and/or the first signal and sends the control signal to the power board; the power board drives the load based on the control signal.
Description
Technical Field
The utility model relates to the technical field of servo driving, in particular to a low-voltage servo driver and a servo driving system.
Background
The conventional universal servo driver generally comprises a rectifier, a bus power electrolytic capacitor and a power inverter, wherein an input alternating current signal is rectified and filtered to form a bus voltage, and the bus voltage is input into the power inverter for inversion and then is output to a driving circuit. However, with the diversification of industrial applications and the rising of subdivision fields (such as semiconductors and lithium batteries), the traditional servo driver has the defects of large size, large installation space, large noise, low alternating current utilization rate and the like.
Disclosure of Invention
In view of the above, the present utility model provides a low-voltage servo driver and a servo driving system for solving the above-mentioned problems.
Based on the above object, the present utility model provides a low-voltage servo driver comprising:
an interface board including at least one input/output interface for receiving a first signal from the outside and/or outputting a second signal to the outside;
a control board in communication with the interface board for receiving the first signal of the interface board and/or outputting the second signal to the outside via the interface board;
the power interface is used for connecting a direct-current power supply to obtain direct-current voltage;
the power board is communicated with the control board and connected with the power interface, and is used for sampling the current and/or voltage of the load to obtain a sampling signal and driving the load; the control board generates a control signal based on the sampling signal and/or the first signal and sends the control signal to the power board; the power board drives the load based on the control signal.
In some embodiments, the power interface is connected to a common bus.
In some embodiments, the low pressure servo driver further comprises: and the network interface is connected with the control panel and is used for communicating with the adjacent low-voltage servo driver through a network.
In some embodiments, the interface board includes at least one of: the device comprises a ground protection interface, a first input/output interface with a first transmission speed, a second input/output interface with a transmission speed larger than the first transmission speed, an analog input/output interface, a Hall signal input interface, a direction pulse signal input interface, a first encoder input interface, a second encoder input interface, a feedback input/output interface and a communication interface.
In some embodiments, the control board comprises:
the control module is used for generating a control signal based on the sampling signal and/or the first signal so as to control the power board to drive a load;
and the communication module is connected with the network interface and the control module and is used for realizing communication between adjacent low-voltage servo drivers.
In some embodiments, the power board comprises: the sampling module is used for sampling the current and/or the voltage of the load to obtain a sampling signal;
the switch module is used for carrying out first transformation on the direct-current voltage so as to provide corresponding internal working direct-current voltage for the low-voltage servo driver;
the driving module is used for performing second conversion on the direct-current voltage based on the control signal to drive the load.
In some embodiments, the low pressure servo driver further comprises: the rotary dial switch is used for address allocation in serial communication.
In some embodiments, the low pressure servo driver further comprises: and the display module is used for displaying the current state or the alarm type of the low-voltage servo driver.
In some embodiments, the low-voltage servo driver is externally connected to the heat dissipation module for dissipating heat from the internal components of the low-voltage servo driver.
The utility model also provides a servo drive system, comprising: a main control unit and at least one low-voltage servo driver according to the utility model.
From the above, the low-voltage servo driver and the servo driving system provided by the utility model can greatly reduce the size of the machine body while meeting the basic functions of the general servo driver, and can more effectively utilize a heat dissipation channel by unifying external heat dissipaters, save cost and heat dissipation space, improve the power utilization rate by a common bus mode, and realize modularized disassembly and assembly.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model or related art, the drawings that are required to be used in the description of the embodiments or related art will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those of ordinary skill in the art.
FIGS. 1-2 are schematic diagrams illustrating a low pressure servo driver according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a servo drive system according to an embodiment of the present disclosure.
Description of the embodiments
The present utility model will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present utility model should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present utility model belongs. The terms "first," "second," and the like, as used in embodiments of the present utility model, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
The conventional universal servo driver generally comprises a rectifier, a bus power electrolytic capacitor and a power inverter, wherein an input alternating current signal is rectified and filtered to form a bus voltage, and the bus voltage is input into the power inverter for inversion and then is output to a driving circuit. However, with the diversification of industrial applications and the rising of subdivision fields (such as semiconductors and lithium batteries), the traditional servo driver has the defects of large size, large installation space, large noise, low alternating current utilization rate and the like. In order to meet the requirements of multiple system shafts, small equipment installation space, low-voltage power supply, common bus and the like, the technical problem to be solved is urgent.
In view of this, one or more embodiments of the present utility model provide a low voltage servo driver, which can greatly reduce the size of the machine body while satisfying the basic functions of the general servo driver, and by unifying external heat sinks, the heat dissipation channels are more effectively utilized, so that the cost and the heat dissipation space are saved, and the power utilization rate can be improved by a common bus mode, and the assembly and disassembly can be modularized.
Referring to fig. 1 and 2, fig. 1 and 2 show schematic structural views of a low pressure servo driver according to an embodiment of the present utility model. In fig. 1, a low pressure servo driver 100 includes:
an interface board 110 including at least one input/output interface for receiving a first signal from the outside and/or outputting a second signal to the outside;
a control board 120 in communication with the interface board 110 for receiving the first signal of the interface board 110 and/or outputting the second signal to the outside via the interface board 110;
a power interface 130 for connecting to a dc power supply to obtain a dc voltage;
a power board 140, which is in communication with the control board 120 and is connected to the power interface 130, and is used for sampling the current and/or voltage of the load to obtain a sampling signal, and driving the load; wherein, the control board 120 generates a control signal based on the sampling signal and/or the first signal, and sends the control signal to the power board 140; the power board 140 drives the load based on the control signal.
The load may be a motor, the DC power supply may be capable of providing a low voltage DC voltage, and the low voltage DC voltage may be directly obtained through a power interface (e.g., the low voltage DC power supply in fig. 2 inputs dc+, DC-) and may be directly used to provide an internal operating voltage, and after conversion, may be used to drive the load. Compared with the traditional servo driver, the servo driver needs to be rectified and then converted to provide internal working voltage and drive load, and a rectifying device is omitted. The low-voltage direct current power supply is realized while the driving load requirement is met, so that the internal space of the servo driver is saved, the size of the servo driver is reduced, and noise (such as noise of a rectifying device) in the working process can be reduced.
In some embodiments, power interface 130 is connected to a bus bar. Further, the power interfaces 130 of the plurality of low voltage servo drives may be connected to the same bus, i.e. a common bus. Thus, when a plurality of low-voltage servo drivers exist in the servo system, the electric utilization rate can be improved by a common bus mode.
In some embodiments, low pressure servo driver 100 further comprises: a network interface 150 is connected to the control board 120 for communicating with other low voltage servo drives via a network. Further, in some embodiments, the network interface 150 may include an RJ45 portal. The RJ45 port may be an Ethernet port (e.g., hundred megaEthercat), or a Glink-II port (e.g., gigabit Glink-II). Specifically, the control board 120 in the low-voltage servo driver 100 may be connected to a network interface of an adjacent low-voltage servo driver via the network interface 150 and a network cable, and communicate with the adjacent low-voltage servo driver. It should be appreciated that the number of network interfaces 150 may be one or more, and is not limited herein.
In some embodiments, low pressure servo driver 100 further comprises: a Control interface (Control IO) 160 is connected to the interface board 110 and is configured to receive a Control instruction of the master device. The user may send a control command through the control interface 160 by using the master device, for example, the master device may be an upper computer.
In some embodiments, the interface board 110 may include a peripheral interface. Further, the peripheral interface may include at least one of: a ground protection interface (e.g., PE in fig. 2), a power output class interface (e.g., U, V, W in fig. 2), a signal class interface.
In some embodiments, the signal class interface may include at least one of:
a first input/output interface (e.g., a normal input/output interface) having a first transmission speed;
a second input/output interface (e.g., a high-speed input/output interface) having a second transmission speed, wherein the second transmission speed is greater than the first transmission speed;
the analog input/output interface is used for inputting and/or outputting analog signals;
a hall signal input interface for inputting and/or outputting hall signals (e.g., current signals and/or voltage signals of a load);
a direction pulse signal input interface for inputting a direction pulse signal (e.g., a control signal of a switch module in the power board 140);
a first encoder input interface for inputting an encoder signal;
the Feedback input/output interface Feedback IO is used for inputting a Feedback signal of a load and/or outputting a control signal of the load; further, the feedback input/output interface may include at least one of a rotary transformer feedback input interface, a sine and cosine feedback input interface, an SSI feedback input interface, an ABZ feedback input interface, and an encoder feedback equivalent output interface;
the second encoder input interface is used for full closed loop control (particularly, in the application of the high precision tip industry, the system angle and position can be controlled more accurately through the second encoder feedback input interface, and the full closed loop control is realized);
a communication interface for implementing bus communication (e.g., CAN, RS422, industrial ethernet); the method can meet the application requirements of most industries, such as gantry synchronization, network synchronization and the like.
In some embodiments, at least one of the power interface 130, the network interface 150, or the control interface 160 may be provided on the interface board 110, or may be provided separately, without limitation.
It should be understood that the input/output interface in the embodiments of the present utility model may be an input interface, an output interface or an input/output interface, which is not limited herein.
In some embodiments, the control board 120 includes: a control module including a processor (e.g., MCU, micro control unit). The control module may calculate, based on the signal received by the control module, to generate a control signal to control the driving module in the power board 140 to drive the load. In addition, the control module may also be used to control other modules or devices of the low-voltage servo driver, which are technical means known to those skilled in the art, and will not be described herein.
In some embodiments, the control board 120 further comprises: and a communication module connected to the network interface 150. The communication module can be connected with the control module to realize the communication of the control module between the adjacent low-voltage servo drivers.
In some embodiments, the power board 140 includes: and the sampling module is used for sampling the current and/or the voltage of the load to obtain a sampling signal.
In some embodiments, the power board 140 includes: the switching module is used for performing first transformation on the direct-current voltage to provide corresponding internal working direct-current voltage for the low-voltage servo driver 100. Wherein the first transformation may comprise a step-up or a step-down.
In some embodiments, the power board 140 includes: the driving module is used for performing second conversion on the direct-current voltage based on the control signal to drive the load. Wherein the second transformation may include inversion. Further, in some embodiments, the drive module may include a three-phase inverter circuit (e.g., including 6 switching devices, which may be MOS transistors). Specifically, the driving module may generate a driving signal based on a control signal of the control board 120 and transmit the driving signal to a driving circuit of the load, thereby driving the load.
In particular implementations, the power board 140 sends the sampling signals of the sampling module to the control board 120; the control board 120 generates a control signal based on the sampling signal and/or the first signal and transmits the control signal to the power board 140; the power board 140 controls the driving module to drive the load based on the control signal.
In some embodiments, the power board 140 includes: and the power capacitor is used for filtering and voltage stabilization.
In some embodiments, low pressure servo driver 100 may further comprise: machine input/output control (Machine IO) for receiving instructions from an external Machine (e.g., other auxiliary devices except a main control device) and outputting corresponding signals (e.g., control signals or feedback signals) to the external Machine.
In some embodiments, low pressure servo driver 100 may further comprise: the rotary dial switch is used for address allocation in serial communication. The rotary dial switch may be connected to the encoder input interface, the number of which may correspond, for example, a first rotary dial switch corresponding to a first encoder input interface and a second rotary dial switch corresponding to a second encoder input interface. It should be appreciated that the number of rotary dial switches may be one or two or more, without limitation.
In some embodiments, low pressure servo driver 100 may further comprise: the display module is used for displaying the current state of the low-voltage servo driver 100 or giving an alarm. Further, the display module may display different operating states or alarm types. For example, the display module can be a nixie tube, and the nixie tube can display different numbers to indicate different working states or alarm types.
In some embodiments, the low-voltage servo driver 100 may be further connected to a heat dissipation module for dissipating heat from the internal components of the low-voltage servo driver 100. Further, the plurality of low-voltage servo drivers 100 may be respectively connected to the heat dissipation module, or may be uniformly connected to the same heat dissipation module. Therefore, the low-voltage servo driver is externally connected to the same or different radiators in a unified way, so that a radiating channel can be more effectively utilized, and the cost and the radiating space are saved.
In some embodiments, low pressure servo driver 100 may further comprise: and a housing for protecting the internal components of the low pressure servo driver 100.
According to an embodiment of the present utility model, there is also provided a servo drive system including: a master control unit and at least one low voltage servo driver (e.g., low voltage servo driver 100 of an embodiment of the present utility model).
Specifically, as shown in fig. 3, fig. 3 shows a schematic diagram of a servo drive system according to an embodiment of the present utility model. In fig. 3, the servo driving system 300 includes a main control unit 310 and a plurality of low-voltage servo drivers 320, and the plurality of low-voltage servo drivers 320 are connected in series. The main control unit 310 is connected to one of the low voltage servo drivers. The main control unit is connected with the low-voltage direct-current servo driver by adopting a network bus, and the low-voltage direct-current servo driver is connected with the low-voltage direct-current servo driver by using a network line. The main control unit and the low-voltage servo driver form distributed acquisition, and the integration level and the reliability of an automatic servo driving control system are improved.
It should be noted that the foregoing describes some embodiments of the present utility model. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the utility model (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the utility model as described above, which are not provided in detail for the sake of brevity.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, and the like, which are within the spirit and principles of the embodiments of the utility model, are intended to be included within the scope of the utility model.
Claims (10)
1. A low pressure servo driver comprising: an interface board including at least one input/output interface for receiving a first signal from the outside and/or outputting a second signal to the outside; a control board in communication with the interface board for receiving the first signal of the interface board and/or outputting the second signal to the outside via the interface board; the power interface is used for connecting a direct-current power supply to obtain direct-current voltage; the power board is communicated with the control board and connected with the power interface, and is used for sampling the current and/or voltage of the load to obtain a sampling signal and driving the load; the control board generates a control signal based on the sampling signal and/or the first signal and sends the control signal to the power board; the power board drives the load based on the control signal.
2. The low voltage servo driver of claim 1 wherein the power interface is connected to a common bus.
3. The low pressure servo driver of claim 1, further comprising: and the network interface is connected with the control panel and is used for communicating with the adjacent low-voltage servo driver through a network.
4. The low voltage servo driver of claim 1 wherein the interface board comprises at least one of: the device comprises a ground protection interface, a first input/output interface with a first transmission speed, a second input/output interface with a second transmission speed larger than the first transmission speed, an analog input/output interface, a Hall signal input interface, a direction pulse signal input interface, a first encoder input interface, a second encoder input interface, a feedback input/output interface and a communication interface.
5. The low pressure servo driver of claim 1 wherein the control board comprises: the control module is used for generating a control signal based on the sampling signal and/or the first signal so as to control the power board to drive a load;
and the communication module is connected with the network interface and the control module and is used for realizing communication between adjacent low-voltage servo drivers.
6. The low voltage servo driver of claim 1 wherein the power plate comprises: the sampling module is used for sampling the current and/or the voltage of the load to obtain a sampling signal; the switch module is used for carrying out first transformation on the direct-current voltage so as to provide corresponding internal working direct-current voltage for the low-voltage servo driver; the driving module is used for performing second conversion on the direct-current voltage based on the control signal to drive the load.
7. The low pressure servo driver of claim 1, further comprising: the rotary dial switch is used for address allocation in serial communication.
8. The low pressure servo driver of claim 1, further comprising: and the display module is used for displaying the current state or the alarm type of the low-voltage servo driver.
9. The low-voltage servo driver of claim 1, wherein the low-voltage servo driver is externally connected to a heat dissipation module for dissipating heat from internal components of the low-voltage servo driver.
10. A servo drive system, comprising: a master control unit and at least one low voltage servo driver as claimed in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320405296.XU CN219592239U (en) | 2023-03-07 | 2023-03-07 | Low-voltage servo driver and servo driving system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320405296.XU CN219592239U (en) | 2023-03-07 | 2023-03-07 | Low-voltage servo driver and servo driving system |
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| CN219592239U true CN219592239U (en) | 2023-08-25 |
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| CN202320405296.XU Active CN219592239U (en) | 2023-03-07 | 2023-03-07 | Low-voltage servo driver and servo driving system |
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- 2023-03-07 CN CN202320405296.XU patent/CN219592239U/en active Active
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