CN210804027U - Controller connection structure and fiber laser - Google Patents
Controller connection structure and fiber laser Download PDFInfo
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- CN210804027U CN210804027U CN201921156177.5U CN201921156177U CN210804027U CN 210804027 U CN210804027 U CN 210804027U CN 201921156177 U CN201921156177 U CN 201921156177U CN 210804027 U CN210804027 U CN 210804027U
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Abstract
The utility model discloses a controller connection structure and fiber laser. The controller connecting structure comprises a main controller and a plurality of sub-controllers, wherein the sub-controllers are connected with each other, and the main controller is connected with the sub-controllers through a cable. The controller connecting structure of the utility model does not need to change the hardware structure of the interface of the main controller when increasing the number of the sub-controllers, and has good expandability; all the sub-controllers are communicated with each other, and the system can quickly respond to the state change or the fault of the system; and the connection structure is simple, and the anti-electromagnetic interference performance is strong.
Description
Technical Field
The utility model relates to a controller field, concretely relates to controller connection structure for but not limited to scalability connection between the controller in the fiber laser. The utility model discloses still relate to a fiber laser.
Background
In the field of fiber lasers, a fiber combiner is commonly used to combine laser beams output by a plurality of laser modules together, thereby forming a fiber laser with higher power. Each laser module is actually a single-cavity fiber laser, except for a light path, each laser module needs to be provided with a set of independent electric control subsystems including a power supply, control, detection, driving and the like, and the core of each laser module is a sub-controller; the whole optical fiber laser comprises a central integrated controller for controlling the sub-controllers, namely the main controller. Various communication signals, enable signals sent by a user upper computer or a cutting machine, pulse modulation signals, red light alignment guide signals, real-time fault processing signals, electric power conduction and the like need to be transmitted between the main controller and the sub-controller, so that the connection structure between the main controller and the sub-controller is very complex. Particularly, as the demand for the total laser output power is increasing, the number of single-cavity laser modules is correspondingly increased, that is, the number of sub-controllers is increased, the original main controller has to be redesigned, the number of interfaces of the sub-controllers is increased, the number of connecting lines between the main controller and the plurality of sub-controllers is too large and complex, the wiring is time-consuming and easy to make mistakes, and electromagnetic interference is generated between connecting wires, so that the connection cannot be realized or the technical requirements cannot be met although the connection is reluctantly realized, the development cost, the material cost and the installation cost are high, and the development period is long.
Fig. 1 shows a schematic structural diagram of a fiber laser controller in the prior art, and this connection structure has no expansibility, because the main controller needs to be redesigned every time a laser module is added, that is, a sub-controller is added, in addition to the electromagnetic interference caused by the line load.
Therefore, the electromagnetic interference generated in the connection of the main controller and the sub-controllers and the main controller interface cannot be expanded to be a technical problem in the current controller connection structure.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention has been made to provide a controller connection structure, a fiber laser, which solves the above problems.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
an aspect of the utility model is to provide a controller connection structure, controller connection structure includes a main control unit and a plurality of sub-controller, interconnect between the plurality of sub-controller, just main control unit with through the single cable junction between the plurality of sub-controller.
Optionally, the plurality of sub-controllers are connected in parallel, and the main controller is connected with any point on the parallel line through a single cable.
Optionally, the connection is a bus connection, and signals in the bus connection are transmitted in a differential form, except for power signals.
Optionally, the bus is connected to a flat wire, a plurality of D-Subminiature connectors are crimped on the flat wire, and the number of the D-Subminiature connectors is equal to the sum of the number of the main controller and the number of the sub-controllers and is opposite to the polarity of the plug connector on the controller.
Optionally, the flat wire internally comprises at least one of a power line, a communication line, a control line, a status line, a data line and an address line.
Optionally, the communication protocol adopted in the controller connection structure is an RS-485 communication protocol.
The utility model discloses another aspect provides a fiber laser, fiber laser includes a plurality of laser module, each the laser module includes single chamber fiber laser, a serial communication port, fiber laser still includes as above-mentioned any one controller connection structure, wherein the sub-controller sets up in the laser module.
Optionally, the signals transmitted between the controllers include at least one of the following: communication signals, control signals, address signals, data signals, status signals, and power signals.
The utility model discloses a controller connection structure has following advantage:
the utility model discloses a technical scheme discloses a controller connection structure, including a main control unit and a plurality of sub-controller, interconnect between the plurality of sub-controller, just main control unit with through the single cable conductor connection between the plurality of sub-controller. Firstly, the main controller is connected with each sub-controller through a single cable, so that the number of the sub-controllers is increased without changing the hardware structure of the main controller, and the expandability is good; secondly, as the sub-controllers are organically connected together and can communicate with each other, each sub-controller can quickly respond to the state change of other sub-controllers; and thirdly, because the connecting wires are few and short, the external interference on the connecting wires and the interference between the connecting wires are reduced.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of a connection structure of a fiber laser multistage controller in the prior art;
fig. 2 is a schematic diagram of a connection structure of a multi-stage controller according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a connection structure of a multi-stage controller according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a high-power fiber laser based on a beam combining structure in an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the connection problem between main control unit and a plurality of sub-controller in the current fiber laser, the utility model provides a can realize the structure of various main control unit and the sub-control connection of a plurality of, wherein, a plurality of sub-controller interconnect among this connection structure, then, main control unit with single cable conductor connection between a plurality of sub-controller, this kind of connection structure is simple, and is with low costs, and scalability is good, and anti-electromagnetic interference ability is strong. The above-described controller connection structure can be used in any technical field. The selection of the controller model, the structure of the connecting line, the transmitted signal and the adopted communication protocol are not limited.
Fig. 2 is a schematic diagram illustrating a connection structure of a controller according to an embodiment of the present invention. The controller connection structure includes: the system comprises a main controller and a plurality of sub-controllers, wherein the plurality of sub-controllers are connected with each other, and each sub-controller can be connected with each other through a single cable, for example, the sub-controllers are physically connected in parallel; or one of the sub-controllers is connected with a plurality of sub-controllers, other sub-controllers can be connected, and in order to realize the effective connection among the sub-controllers, the connecting line among the sub-controllers is also the single cable line. In this way, the sub-controllers are organically connected together, communication can be carried out between the sub-controllers, and each sub-controller can quickly respond to the state change of the other sub-controllers.
In addition, in order to ensure that the hardware structure of the interface of the main controller is unchanged and increase the expandability of the control structure, the main controller and the plurality of sub-controllers are connected by a single cable, for example, in a specific embodiment, the main controller is connected to one sub-controller specified by a target address in the main controller by a cable connection line in a site selection manner, the sub-controllers and the main controller can also communicate in the site selection manner, and the main controller or each sub-controller can also broadcast to the rest of the controls in a broadcast manner. In this embodiment, the interface shape of the connection line and the adopted standard are not limited, and corresponding design can be performed according to different controller types and actual connection requirements. The design includes a mechanism to prevent bus contention, i.e., only one controller (whether the master or the slave) sends onto the bus at each time, and when the other controllers detect that the bus is being sent by one controller, the controllers wait until that controller sends out, and then queue in turn.
The controller connecting structure has the advantages that as only one control bus is connected with the main controller and all the sub-controllers, more sub-controllers can be connected in an extensible manner on the premise of not redesigning the main control, the structure is simple in wire arrangement, simple and compact, and leaves more space for other parts of the whole machine, so that the mechanical design of the whole machine is flexible and convenient; the wiring is simple and few, and the labor cost and the material cost are low; and the system and the sub-modules are simple and convenient to test and maintain.
In summary, in the technical solution of the embodiment, firstly, since the main controller is connected to each sub-controller by a single cable, the number of the sub-controllers is increased without changing the hardware structure of the main controller, and the expandability is good; secondly, as the sub-controllers are organically connected together and can communicate with each other, each sub-controller can quickly respond to the state change of other sub-controllers; and thirdly, because the connecting wires are few and short, the external interference on the connecting wires and the interference between the connecting wires are reduced.
In one embodiment, in order to achieve the object of the present invention, a plurality of sub-controllers are connected in parallel with each other through a single cable, and then the main controller is connected with any point on the parallel line through the single cable, for example, a connecting line led out from the main controller can be connected to a connecting node of a certain sub-controller in the middle of the parallel line, and also can be connected to a head end or a terminal sub-controller of the arrangement, as shown in fig. 4. Also, since the connection lines are few and short, the connection lines are subjected to external interference and interference between the connection lines is small.
In a specific embodiment, the connection is a bus connection. Bus connection is an important connection mode in the field of computers or communications, a Bus (Bus) is a common communication trunk line for transmitting information among various functional components of a computer, and external equipment is connected with the Bus through corresponding interface circuits. The bus is a transmission line bundle composed of wires according to the kind of information transmitted by the computer. The bus of the computer may be divided into a DB data bus, an AB address bus, and a CB control bus for transmitting data, data addresses, and control signals, respectively. In a specific embodiment, the transmitted signals are different according to different application scenarios, and the bus structures that can be selected are an AB bus, a DB bus, and a CB bus.
In a specific embodiment, the signals in the bus structure are transmitted in a differential fashion. The input and output signals are propagated in a differential mode, the common mode rejection ratio of noise is high, and therefore the system has high anti-interference capability.
In a specific embodiment, the communication protocol adopted in the controller connection structure is RS-485, so that effective transmission of various communication signals, enable signals sent by a user host computer or a cutting machine, pulse modulation signals, red light alignment guide signals, real-time fault processing signals and power supply signals can be realized.
In one particular embodiment, flat wires may be selected as the DB bus, and power and/or address/control wires may be provided within the flat wires to facilitate the connection of power between the various controllers for conducting power.
In a particular embodiment, the category of the DB bus may be selected to include any one of DB9, DB25, DB 37. For example, the DB25 bus is selected, so that the manufacturing is simple and convenient, and the cost is low. However, the number of lines in the DB bus is not limited to 9, 25, 37, and the specific number depends on the application requirements.
In one embodiment, a plurality of D-Subminiature connectors are crimped onto flat wires of the DB bus, the connectors are mated with the DB on the main control board and the sub-control boards thereof, the number of connectors on the flat wires is the sum of the number of main control boards and sub-control boards, and the polarity of the connectors on the flat wires is opposite to that of the main control boards and the sub-control boards.
The controller connection structure can be applied to the fiber laser by improving the existing bus structure according to actual needs, such as by improving the DB25 bus.
Referring to fig. 3, a physical diagram of a multi-level controller connection structure in another embodiment of the present invention is shown, in which a parallel connection of six sub-controllers is shown, and the main controller is connected to the right end of the flat cable, which is not shown in the figure.
Fig. 4 shows a schematic structural diagram of a high-power fiber laser based on a beam combining structure in an embodiment of the present invention. The optical fiber laser comprises a plurality of laser modules, each laser module comprises a single-cavity optical fiber laser, the optical fiber laser further comprises a controller connecting structure, and the sub-controller is arranged in the laser modules.
In a specific embodiment, the main controller is used for connecting and controlling a plurality of laser modules, and each laser module further comprises a single-cavity optical fiber laser and a sub-controller. The English words in FIG. 4 have the following meanings:
CPS-clipping Power Stripper, i.e., a Cladding Power Stripper.
QBH-Quartz Block Head, an optical fiber output device, is a device for expanding beam output of optical fiber spots and reducing power density by packaging an optical fiber fusion Quartz column and a mechanical part, is used for medium-high power continuous light and light beam divergence output, and is commonly used for metal cutting or welding processing.
PD-Photodiode or Photodetector, i.e., a photodiode.
In order to realize the control of the main controller to each sub-controller, the signals transmitted among the controllers are specially added with address signals besides the communication signals, control signals, data signals and state signals in the prior art, so that the controllers can communicate with each other through respective address signals, thereby realizing the control and coordination. Additionally, the utility model discloses still introduce the power cord in the bus to the transmission of electric power between each controller is realized.
To sum up, the technical scheme of the utility model, including a main control unit and a plurality of sub-controller, interconnect between a plurality of sub-controller, just main control unit with through the single cable conductor connection between a plurality of sub-controllers. Firstly, the main controller is connected with each sub-controller through a single cable, so that the number of the sub-controllers is increased without changing the hardware structure of the main controller, and the expandability is good; secondly, as the sub-controllers are organically connected together and can communicate with each other, each sub-controller can quickly respond to the state change of other sub-controllers; and thirdly, because the connecting wires are few and short, the external interference on the connecting wires and the interference between the connecting wires are reduced.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a controller connection structure, controller connection structure includes a main control unit and a plurality of sub-controller, its characterized in that, interconnect between a plurality of sub-controller, just main control unit with connect through a strip cable between a plurality of sub-controller.
2. The controller connecting structure according to claim 1, wherein the plurality of sub-controllers are connected in parallel with each other, and the main controller is connected to any point on the parallel line by a single cable.
3. The controller connection structure according to claim 1, wherein the connection is a bus connection in which signals are transmitted in a differential form.
4. The controller connection structure according to claim 3, wherein the bus connection is a flat wire on which a plurality of D-Subminiature connectors are crimped, and the number of D-Subminiature connectors is equal to the sum of the number of the main controllers and the sub-controllers, and the polarities thereof are opposite.
5. The controller connection structure according to claim 4, wherein the flat wire internally includes at least one of a power line, a communication line, a control line, a status line, a data line, and an address line.
6. The controller connection structure according to claim 1, wherein the communication protocol used in the controller connection structure is RS-485 communication protocol.
7. A fibre laser comprising a plurality of laser modules, each comprising a single cavity fibre laser, wherein the fibre laser further comprises a controller connection as claimed in any of claims 1 to 6, wherein the sub-controller is provided within the laser modules.
8. The fiber laser of claim 7, wherein the signals transmitted between the controllers include at least one of: communication signals, control signals, address signals, data signals, status signals, and power signals.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921156177.5U CN210804027U (en) | 2019-07-22 | 2019-07-22 | Controller connection structure and fiber laser |
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| CN201921156177.5U CN210804027U (en) | 2019-07-22 | 2019-07-22 | Controller connection structure and fiber laser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110269A (en) * | 2021-05-31 | 2021-07-13 | 上海电气集团股份有限公司 | Universal medium-high voltage power electronic equipment controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113110269A (en) * | 2021-05-31 | 2021-07-13 | 上海电气集团股份有限公司 | Universal medium-high voltage power electronic equipment controller |
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