A one-stop power supply monitoring device for laser cutting equipment

Abstract

The utility model provides a one-stop power supply monitoring device for laser cutting equipment, including: a cabinet; a total disconnecting element and a control component are installed inside the cabinet, the inlet end of the total disconnecting element is connected to the power supply; the outlet end of the total disconnecting element is connected to multiple groups of branch lines, and is connected to the input end of the disconnecting control element through the branch line; the output end of the disconnecting control element is connected to the laser cutting equipment to supply power to the electrical components of the laser cutting equipment; the input end of the disconnecting control element is provided with a detection module for detecting harmonic electric energy, voltage and current; the controller is connected to the control end of the disconnecting control element through a relay; the controller is respectively connected to the electric energy detection device and the electric energy acquisition module for communication, obtains voltage, current and harmonic electric energy information, and controls the disconnecting control element through the relay based on the obtained voltage, current and harmonic electric energy information. The device can provide electric energy for the laser cutting equipment to ensure the stable operation of the laser cutting equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of power supply for laser cutting equipment, and in particular relates to a one-stop power supply monitoring device for laser cutting equipment. Background Art

[0002] Low-voltage electric cabinet is one of the important equipment in the electric power system, which is used to distribute and control electric energy. For example, the prior art involves an electric power distribution cabinet that is easy to assemble with modules. The document includes: a distribution cabinet, an electric meter, a circuit breaker fixing plate and a circuit breaker. The circuit breaker fixing plate is fixedly provided with a circuit breaker moving groove on its surface, and a circuit breaker unloading groove is fixedly provided on the surface of the circuit breaker fixing plate at one end of the circuit breaker moving groove. A mounting block is fixedly welded on one side of the circuit breaker, and a limited position cavity is fixedly provided inside the mounting block at one end away from the circuit breaker. The limiting sliders are fixedly welded at both ends of the limiting spring, and an electric meter installation cavity is fixedly provided inside the electric meter installation shell. A soft push plate is fixedly welded at the other end of the support spring, and a positioning hole is fixedly provided on the upper end of the inner wall of the electric meter installation shell, and a rotating inlet hole is fixedly provided on the side wall of the electric meter installation shell located on the side of the electric meter installation cavity.

[0003] The above-mentioned power distribution cabinet has components such as circuit breakers and electric meters, but for laser cutting machines, because laser cutting machines use more electrical equipment, multiple circuit breakers and electric meters are required to be used together. This leads to complex internal circuits in the low-voltage cabinet, and the circuits are intertwined, affecting the stability of the power supply. If an abnormality occurs, it is difficult to find the fault, and the file cannot effectively monitor the power supply status. It can only be discovered when a fault occurs, which brings hidden dangers to the stable operation of the laser cutting machine. Utility Model Content

[0004] The one-stop power supply monitoring device for laser cutting equipment provided by the utility model can provide power to the laser cutting equipment and effectively improve the safety, reliability and convenience of power supply.

[0005] The one-stop power supply monitoring device for laser cutting equipment comprises: a cabinet, wherein a main disconnecting element and a control component are installed inside the cabinet, wherein the inlet end of the main disconnecting element is connected to the power supply; the outlet end of the main disconnecting element is connected to a plurality of branch lines, and is connected to the input end of the disconnecting control element through the branch lines; the output end of the disconnecting control element is connected to the laser cutting equipment to supply power to the electrical components of the laser cutting equipment;

[0006] The input end of the disconnecting control element is provided with a detection module for collecting electric energy parameters;

[0007] The control component is respectively connected to the disconnection control element and the detection module for communication, obtains the electric energy parameters collected by the detection module, and controls the disconnection control element based on the electric energy parameters.

[0008] It should be further explained that the detection module includes: an electric energy detection device and / or an electric energy collection module;

[0009] The electric energy parameters collected by the detection module include: voltage, current and / or harmonic electric energy information.

[0010] It should be further explained that the control components also include: a controller, a relay, a circuit breaker, a filter and a switching power supply;

[0011] The power supply end of the controller is connected to the power supply through the switching power supply, the filter and the circuit breaker in sequence;

[0012] The controller is connected to the control end of the disconnection control element through a relay, and the controller controls the disconnection control element through the relay based on the acquired electric energy parameter.

[0013] It should be further explained that a fan and a temperature collection module are installed on the cabinet;

[0014] The controller obtains the temperature information inside the cabinet by connecting with the temperature acquisition module;

[0015] The controller is connected to the fan, and controls the fan to run when the temperature information inside the cabinet exceeds a preset temperature threshold.

[0016] It should be further explained that the 485 port of the controller is connected to the temperature acquisition module for communication and obtains temperature information based on the 485 protocol;

[0017] The controller is connected to the fan through the fan control relay to control the start and stop of the fan.

[0018] It should be further explained that the detection module also includes: a communication module;

[0019] The control component is connected to the host computer through the communication module and uploads the acquired electric energy parameters to the host computer.

[0020] It should be further explained that the control component is connected to a display screen and a GRM530 SMS alarm module, and the display screen is used to display the acquired power parameters;

[0021] The control component is connected to the GRM530 SMS alarm module. When the acquired power parameters are abnormal, an alarm is issued through the GRM530 SMS alarm module.

[0022] It should be further explained that the controller adopts a single chip microcomputer or a PLC module;

[0023] The controller is connected to the electric energy detection device and the electric energy collection module through the ethercat communication protocol.

[0024] It should be further explained that the electric energy detection device adopts JSY-MK-301 three-phase inductive electric energy detection device;

[0025] The electric energy collection module adopts JSY-MK-138 type 12-channel mutual inductance electric energy collection module.

[0026] It should be further explained that a copper busbar distribution device is provided inside the cabinet;

[0027] The multi-component wiring lines connected to the outgoing terminals of the main disconnecting element are fixed on the copper busbar branching device;

[0028] The incoming line end of the main disconnecting element is connected to the power supply through the main power supply copper busbar.

[0029] It can be seen from the above technical solutions that the utility model has the following advantages:

[0030] In the one-stop power supply monitoring device for laser cutting equipment provided by the utility model, a cable inlet and outlet are installed on the side of the cabinet, which makes wiring more convenient, occupies less space, and has a high degree of integration. The main disconnecting element and the disconnecting control element are connected with a copper busbar, which is convenient for wiring layout, making the wiring inside the cabinet more standardized, and convenient for observation and maintenance. The voltage, current and harmonic power information in the power detection device and the power acquisition module are used to detect the voltage, current and harmonic power information in the device, and an alarm can be issued when an abnormality occurs. The utility model can obtain the voltage, current and harmonic power information status of the power supply process to the laser cutting equipment before a fault occurs during the power supply process, can provide an abnormal alarm, and can provide timely feedback to ensure the stable operation of the laser cutting equipment. Effectively improve the safety, reliability and convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram of a cabinet embodiment;

[0033] Figure 2 Schematic diagram of a one-stop power supply monitoring device for laser cutting equipment;

[0034] Figure 3 Schematic diagram of the control components.

[0035] Description of reference numerals:

[0036] 1-control component, 2-main power supply copper busbar, 3-total breaking element, 4-copper busbar branching device, 5-detection module, 6-breaking control element, 7-relay, 11-cabinet, 12-cabinet door, 13-heat dissipation hole, 14-PLC module, 15-JSY-MK-301 three-phase mutual induction electric energy detection device, 16-JSY-MK-138 12-channel mutual induction electric energy collection module, 17-temperature collection module, 18-control button, 19-GRM530 SMS alarm module. DETAILED DESCRIPTION

[0037] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0038] like Figures 1 to 3 As shown, the one-stop power supply monitoring device for laser cutting equipment provided by the utility model includes: a cabinet 11, and the cabinet 11 is hinged with a cabinet door 12. Among them, the cabinet 11 can adopt a sheet metal cabinet design, and be equipped with a dust cover and an internal cross brace. The cabinet 11 can be provided with control buttons 18, a fan, and heat dissipation holes 13, etc. The display screen design of the traditional cabinet 11 is cancelled on the cabinet 11, and all communications are displayed on the display screen of the control component. The cable inlet and outlet are left on the side, which makes wiring more convenient, occupies less space, and has a higher degree of integration. A passive control fan cooling method is used. Compared with the prior art, the utility model cancels active cooling and reduces fire phenomena caused by fan circuit breaking.

[0039] Optionally, the cabinet 11 adopts a bottom wire trough opened on both sides for the cables to enter and exit, which has the advantages of saving space and facilitating wiring. A lifting device can be set at the top of the cabinet 11. The cabinet door 12 is connected to the cabinet 11 by a hinge.

[0040] In the utility model, a total disconnecting element 3 and a control assembly 1 are installed inside the cabinet 11. The total disconnecting element 3 is the main power switch in the device, and an air switch or a circuit breaker can be used. The inlet end of the total disconnecting element 3 is connected to the power supply; the inlet end of the total disconnecting element 3 can be connected to the power supply through the main power supply copper bus 2. The power supply involved in the utility model is a three-phase AC power supply.

[0041] As for the connection mode of each electrical component inside the cabinet 11, a copper bar branching device 4 is provided inside the cabinet 11; the multi-group branching lines connected to the outgoing end of the main disconnecting element 3 are fixed on the copper bar branching device 4; the branching lines are made of copper bars. The copper bar branching device 4 can fix the branching lines made of copper bars, making the wiring of the cabinet 11 more beautiful, convenient for inspection and maintenance, and convenient for replacement and use.

[0042] The outlet end of the total disconnecting element 3 of the utility model is connected to multiple groups of branch lines, and is connected to the input end of the disconnecting control element 6 through the branch lines; the output end of the disconnecting control element 6 is connected to the laser cutting equipment to supply power to the electrical components of the laser cutting equipment. The number of disconnecting control elements 6 can be set according to the number of electrical components that need to be powered in the laser cutting equipment, and the specific number is not limited.

[0043] In order to monitor the output data information of the device and ensure the stable operation of the laser cutting equipment, the input end of the disconnection control element 6 is provided with a detection module 5 for obtaining harmonic power, voltage and current information.

[0044] Specifically, the detection module 5 includes: an electric energy detection device and an electric energy collection module; the control component 1 includes a controller and a relay 7. The controller is connected to the control end of the disconnection control element 6 through the relay 7; the controller is respectively connected to the electric energy detection device and the electric energy collection module for communication, obtains voltage, current and harmonic electric energy information, and controls the disconnection control element 6 through the relay 7 based on the obtained voltage, current and harmonic electric energy information.

[0045] Optionally, the controller adopts a single chip microcomputer or a PLC module 14; the power detection device adopts a JSY-MK-301 three-phase mutual inductance power detection device; the power collection module adopts a JSY-MK-138 12-way mutual inductance power collection module 16; and the controller communicates with the power detection device and the power collection module respectively through the ethercat communication protocol.

[0046] The controller below uses the PLC module 14 as an example to illustrate the implementation of the present invention. The PLC module 14 uses the XD3E-24 model PLC module 14.

[0047] The control component 1 also includes a circuit breaker QF1, a filter LC1 and a switching power supply G1; a fan and a temperature acquisition module 17 are installed on the cabinet 11; the temperature acquisition module 17 adopts a Pt100 temperature acquisition module 17. The controller obtains the temperature information inside the cabinet 11 by connecting with the temperature acquisition module 17; the controller is connected with the fan, and when the temperature information inside the cabinet 11 exceeds the preset temperature threshold, the fan is controlled to run.

[0048] The circuit breaker QF1 is connected to the filter LC1 through a cable, and the filter LC1 is connected to the switching power supply G1 through a cable. The switching power supply supplies power to the PLC module 14 to realize the control function of the PLC module 14.

[0049] The PLC module 14 connects the JSY-MK-301 three-phase mutual inductance electric energy detection device 15 and the JSY-MK-138 12-channel mutual inductance electric energy collection module 16 through the ethercat communication protocol, and uses the JSY-MK-301 three-phase mutual inductance electric energy detection device 15 and the JSY-MK-138 12-channel mutual inductance electric energy collection module 16 as the slave station form of the PLC.

[0050] This embodiment realizes the collection of voltage, current and harmonic electric energy through JSY-MK-301 three-phase mutual inductance electric energy detection device 15 and JSY-MK-138 type 12-way mutual inductance electric energy collection module 16, and transmits the collected data to PLC module 14 through EtherCAT protocol. PLC module 14 processes and compares the acquired data. The comparison method can be to correspond the collected voltage, current and harmonic electric energy information to the corresponding threshold value, or to compare with the data fluctuation range in the historical time period. If the threshold value is exceeded or the fluctuation range is large, an alarm can be issued. The disconnection control element 6 can also be controlled by a relay to perform on-off operation. The processing method for voltage, current and harmonic electric energy information can also be based on the mean value, median, or mean square error in the current time period, and the stability of the current power supply to the laser cutting equipment can be obtained.

[0051] The PLC module 14 in this embodiment has a 485 port, which is connected to the temperature acquisition module 17 through the 485 port, and can measure the temperature by itself. The temperature signal is transmitted to the PLC module 14 through the 485 protocol, and the internal temperature information of the cabinet 11 is judged through internal program comparison. Of course, temperature sensors can also be installed on the electrical components inside the cabinet 11 to judge the temperature of the electrical components, and then the fan control relay can be controlled to control the start and stop of the fan.

[0052] The PLC module 14 of this embodiment is connected to a display screen and a GRM530 SMS alarm module 19 , and the GRM530 SMS alarm module 19 is connected to the PLC module 14 via the EtherCAT protocol.

[0053] Optionally, the PLC module 14 is a slave station of the master station. When the PLC module 14 detects different levels of alarms through an external detection device, the corresponding command alarm is sent through the GRM530 SMS alarm module 19. The alarm information input by the control button 18 is the highest level alarm state, which can control the disconnection control element 6 to perform the disconnection action. As a connection method of this embodiment, the incoming line end of the total disconnection element 3 is connected to the busbar copper bar for power supply at the upper part of the cabinet 11. The incoming line of the busbar copper bar runs from the bottom of the cabinet 11 to the upper part, serving as the power supply unit of the entire cabinet 11.

[0054] The display screen connected to the PLC module 14 can display the device operation data. The PLC module 14 and the display screen can be directly connected via EtherCAT or 485 communication. The display screen can display specific current, voltage, power consumption and fault values ​​through the page, and can increase the display value of harmonics, thereby improving the fault self-checking capability. In this way, the utility model is not limited to the display position, and can be displayed on the host computer, and can also be used for automatic PLC module display. The specific display method is shown in the following table:

[0055]

[0056] As a control logic of the utility model, the device is used in conjunction with the laser cutting equipment. Before use, the laser cutting equipment is checked to be turned on, and valid authorization for the use of the laser cutting equipment is obtained. The controller communicates with the power detection device and the power acquisition module respectively to obtain voltage, current and harmonic power information, and then judges whether the collected data is successfully collected, whether there is a collection error, and then reads it repeatedly for 5 times. If all 5 times are successful, it will feedback that there is no fault and prompt it on the display page. After the collection is successful, continue to compare with the set effective value or preset threshold to judge whether the collected data meets the use needs of the laser cutting equipment. If it meets the use needs of the laser cutting equipment, it can meet the use needs of the laser cutting equipment. If it does not meet the requirements, an alarm prompt will be issued. It can prompt the line open circuit state, or the line short circuit state, the line overcurrent state, the line overvoltage state, the line missing state, the line zero phase loss and other fault states. While feedbacking the fault, the fault is compared with the preset fault level. When the fault is a first-level fault, a reminder is triggered, and the user is notified through the GRM530 SMS alarm module 19 to perform routine maintenance inspections on the line. When it is a level 2 fault, a reminder is triggered, and the corresponding faulty line is cut off at the same time, and the user is notified to check the faulty line through the GRM530 SMS alarm module 19. When it is a level 3 fault, a forced reminder is triggered, and the main power is cut off at the same time, and the corresponding faulty line information is sent through the GRM530 SMS alarm module 19 for auxiliary troubleshooting.

[0057] In this way, the one-stop power supply monitoring device for laser cutting equipment provided by the utility model realizes intelligent control of the entire power supply process of the laser cutting equipment. The internal circuits of the device are reasonably laid out, which is convenient for operation and maintenance. In case of failure, timely feedback can be given and alarm prompts can be given to ensure stable operation of the laser cutting equipment.

[0058] The technology described in the one-stop power supply monitoring device for laser cutting equipment provided by the utility model can be implemented in hardware, software, firmware or any combination thereof. The various features described as modules, units or components can be implemented together in an integrated logic device or separated as discrete but interoperable logic devices or other hardware devices. In some cases, various features of the electronic circuit can be implemented as one or more integrated circuit devices, such as integrated circuit chips or chipsets.

[0059] If implemented in hardware, the present invention relates to a device, such as a processor or an integrated circuit device, such as an integrated circuit chip or chipset. Alternatively or additionally, if implemented in software or firmware, the technology may be implemented at least in part by a computer-readable data storage medium, including instructions that, when executed, cause a processor to perform one or more of the above methods. For example, a computer-readable data storage medium may store instructions such as those executed by a processor.

[0060] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A one-stop power supply monitoring device for laser cutting equipment, characterized in that: include: The cabinet body has main disconnecting elements and control components installed inside, and the main disconnecting element inlet end is connected to the power supply; The outgoing end of the main disconnecting element is connected to a plurality of branch lines, and is connected to the input end of the disconnecting control element through the branch lines; the output end of the disconnecting control element is connected to the laser cutting equipment to supply power to the electrical components of the laser cutting equipment; The input end of the disconnecting control element is provided with a detection module for collecting electric energy parameters; The control component is respectively connected to the disconnection control element and the detection module for communication, obtains the electric energy parameters collected by the detection module, and controls the disconnection control element based on the electric energy parameters.

2. The one-stop power supply monitoring device for laser cutting equipment according to claim 1, characterized in that: The detection module includes: an electric energy detection device and / or an electric energy collection module; The electric energy parameters collected by the detection module include: voltage, current and / or harmonic electric energy information.

3. The one-stop power supply monitoring device for laser cutting equipment according to claim 1, characterized in that: The control components also include: controller, relay, circuit breaker, filter and switching power supply; The power supply end of the controller is connected to the power supply through the switching power supply, the filter and the circuit breaker in sequence; The controller is connected to the control end of the disconnection control element through a relay, and the controller controls the disconnection control element through the relay based on the acquired electric energy parameter.

4. The one-stop power supply monitoring device for laser cutting equipment according to claim 1, characterized in that: The cabinet is equipped with a fan and a temperature collection module; The controller obtains the temperature information inside the cabinet by connecting with the temperature acquisition module; The controller is connected to the fan, and controls the fan to run when the temperature information inside the cabinet exceeds a preset temperature threshold.

5. The one-stop power supply monitoring device for laser cutting equipment according to claim 4, characterized in that: The 485 port of the controller is connected to the temperature acquisition module for communication, and the temperature information is obtained based on the 485 protocol; The controller is connected to the fan through the fan control relay to control the start and stop of the fan.

6. The one-stop power supply monitoring device for laser cutting equipment according to claim 1 or 2, characterized in that: The detection module also includes: a communication module; The control component is connected to the host computer through the communication module and uploads the acquired electric energy parameters to the host computer.

7. The one-stop power supply monitoring device for laser cutting equipment according to claim 1 or 2, characterized in that: The control component is connected with a display screen and a GRM530 SMS alarm module, and the display screen is used to display the acquired power parameters; The control component is connected to the GRM530 SMS alarm module. When the acquired power parameters are abnormal, an alarm is issued through the GRM530 SMS alarm module.

8. The one-stop power supply monitoring device for laser cutting equipment according to claim 3, characterized in that: The controller uses a single chip microcomputer or PLC module; The controller is connected to the electric energy detection device and the electric energy collection module through the ethercat communication protocol.

9. The one-stop power supply monitoring device for laser cutting equipment according to claim 2, characterized in that: The electric energy detection device adopts JSY-MK-301 three-phase inductive electric energy detection device; The electric energy collection module adopts JSY-MK-138 type 12-channel mutual inductance electric energy collection module.

10. The one-stop power supply monitoring device for laser cutting equipment according to claim 1 or 2, characterized in that: A copper busbar distribution device is provided inside the cabinet; The multi-component wiring lines connected to the outgoing terminals of the main disconnecting element are fixed on the copper busbar branching device; The incoming line end of the main disconnecting element is connected to the power supply through the main power supply copper busbar.

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