Intermediate frequency welding power failure protection system
By designing a power-down support module in the intermediate frequency welding controller, short-term power is provided for the drive module and storage module, the problem of data loss caused by sudden power outage is solved, effective data storage and display is realized, and protection effect is improved.
Patent Information
- Application Number
- CN202323574335.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-27
AI Technical Summary
The existing intermediate frequency welding controller cannot provide short-term power supply to the logic control module in the event of a sudden power outage, resulting in loss of calculation data and reducing the protection effect.
An intermediate frequency welding power-down protection system is designed, including a power-down support module, a driving module and a storage module. Through the power-down support module, it provides short-term power to the drive module and storage module when the power-down support module is cut off, so that data can be transmitted to the storage module. To store. The system consists of chip U1, capacitors, inductors, supercapacitors, etc., which can power the drive module and storage module when power is cut off to prevent data loss.
By providing a short power supply, data loss is effectively prevented, and the connection between the controller and the display communication module is allowed to display processed calculation data on the display, improving the protection effect.
Smart Images
Figure CN222154349U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding, in particular to a medium frequency welding power-off protection system. Background Art
[0002] The medium frequency welding controller is a device specially used for welding process. Its core technology is to use medium frequency current to generate magnetic field and realize welding through the effect of magnetic field on metal workpiece.
[0003] An intelligent welding control system and method with publication number CN109202250A includes a logic control module connected to a power drive and a controller, an AC power supply connected to an input end of a full-bridge rectifier circuit, a power drive connected between the AC power supply and an inverter circuit unit, an output end of the full-bridge rectifier circuit connected to an input end of a DC circuit, an output end of the DC circuit connected to an input end of an inverter circuit unit, an output end of the inverter circuit unit connected to an input end of a medium frequency welding transformer, an output end of the medium frequency welding transformer connected to a current rectifier unit, and an output end of the current rectifier unit connected to a welding clamp device.
[0004] In the case of sudden power outage, the existing solution cannot provide a short power supply time for the logic control module, resulting in the loss of calculation data in the logic control module as long as the power is cut off, thereby reducing the protection effect. Utility Model Content
[0005] In view of this, the utility model proposes a medium frequency welding power-off protection system, which can provide a short period of power supply to the drive module and the storage module in the event of a sudden power outage, so that the data in the drive module can be stored through the storage module, which has a good protection effect and prevents data loss.
[0006] The technical solution of the utility model is implemented as follows: the utility model provides a medium frequency welding power-off protection system, including a power-off support module, a drive module and a storage module, wherein the output end of the power-off support module is electrically connected to the input end of the drive module and the storage module respectively, and the output end of the drive module is electrically connected to the input end of the storage module. The power-off support module is used to provide power to the drive module and the storage module when power is off, so that the data of the drive module is input into the storage module for storage.
[0007] On the basis of the above technical solution, preferably, the power-off support module includes a chip U1, a resistor R245, a resistor R137, a capacitor C141, a capacitor C142, a capacitor C289, a capacitor C335, a capacitor C120, a capacitor C171, a capacitor C172, a supercapacitor unit, a capacitor C170, a resistor R68, a capacitor C173, a resistor R224, a capacitor C169, a capacitor C175, a capacitor C176 and an inductor L10, wherein the lead of the chip U1 Pin 1 is electrically connected to one end of capacitor C170, pin 3 of the chip U1 is electrically connected to the other end of capacitor C170 and one end of inductor L10 respectively, the other end of inductor L10 is electrically connected to the positive electrode of resistor R68, capacitor C173, capacitor C169, capacitor C175, capacitor C176 and the output end of power-off support module respectively, pin 5 of chip U1 is electrically connected to resistor R224, the other end of capacitor C173 and the other end of resistor R68 respectively, Pin 7 is electrically connected to resistor R245, the other end of resistor R245 is electrically connected to the input end of the power-off support module, capacitor C120, capacitor C335, the positive electrode of capacitor C289, resistor R137, pin 2 of chip U1 and one end of the supercapacitor unit, the other end of resistor R137 is electrically connected to the positive electrode of capacitor C141, capacitor C142 and the power input end, the negative electrode of capacitor C141 and the other end of capacitor C142 are commonly grounded, and pin 8 of chip U1 is electrically connected to Capacitor C171 is electrically connected, pin 6 of chip U1 is electrically connected to capacitor C172, the negative electrode of capacitor C289 is electrically connected to the other end of capacitor C335, the other end of capacitor C120, the other end of capacitor C171, the other end of capacitor C172, pin 9 of chip U1, pin 4 of chip U1, the other end of resistor R224, the other end of capacitor C169, the other end of capacitor C175, the negative electrode of capacitor C176 and the other end of the supercapacitor unit, and are commonly grounded.
[0008] On the basis of the above technical solution, preferably, it also includes a voltage conversion unit, the input end of the voltage conversion unit is electrically connected to the external power supply, and the output end of the voltage conversion unit is electrically connected to the input end of the power-off support module for supplying power to the power-off support module.
[0009] On the basis of the above technical scheme, preferably, the voltage conversion unit includes a chip M5, a capacitor C85, a capacitor C86, a capacitor C89 and a capacitor C90, wherein pin 3 of the chip M5 is electrically connected to the capacitor C85 and an external 24V power supply, respectively, pin 3 of the chip M5 is electrically connected to the other end of the capacitor C85 and is commonly grounded, pin 4 of the chip M5 is electrically connected to the positive electrode of the capacitor C86, the positive electrode of the capacitor C89, the capacitor C90 and the input end of the power-off support module, respectively, and pin 6 of the chip M5 is electrically connected to the negative electrode of the capacitor C86, the negative electrode of the capacitor C89 and the other end of the capacitor C90, respectively, and is commonly grounded.
[0010] On the basis of the above technical solution, preferably, the storage module includes a capacitor C48 and a chip U3, pin 7 and pin 8 of the chip U3 are electrically connected to the output end of the power-off support module and the capacitor C48 respectively, the other end of the capacitor C48 is grounded, pin 1, pin 2, pin 5 and pin 6 of the chip U3 are electrically connected to the output end of the driving module, and pin 3 of the chip U3 is electrically connected to the external power supply.
[0011] On the basis of the above technical solution, preferably, it further includes a display communication module and a controller, the driving module is communicatively connected to the controller, and the input end of the display communication module is electrically connected to the output end of the controller for displaying data of the driving module.
[0012] On the basis of the above technical solution, preferably, the display communication module includes a chip U6, a resistor R71, a resistor R70, a resistor R80, a capacitor C6, a capacitor C7, a capacitor C59, a capacitor C127, a capacitor C126, a resistor R75, a resistor R74, a resistor R76, a resistor R79, a bidirectional diode D32, a bidirectional diode D33, a capacitor C134, a capacitor C136, a resistor R253, a capacitor C135 and a common mode inductor L3, wherein the pin 1 of the chip U6 is respectively connected to the common mode inductor L3. Capacitor C7 and capacitor C6 are electrically connected and connected to an external 3V power supply. Pin 2 of chip U6 is electrically connected to the other end of capacitor C7 and the other end of capacitor C6 respectively and connected to a common ground. Pin 3, pin 4 and pin 5 of chip U6 are electrically connected to resistor R71, resistor R70 and resistor R80 respectively. The other ends of resistor R71, resistor R70 and resistor R80 are electrically connected to the output end of controller 6. Pin 9 of chip U6 is electrically connected to capacitor C127, capacitor C126 and capacitor C127 respectively. Resistor R76, capacitor C59, bidirectional diode D32, bidirectional diode D33, capacitor C134 and capacitor C136 are electrically connected, the other end of capacitor C59 is grounded, pin 8 of chip U6 is electrically connected to resistor R75, the other end of resistor R75 is electrically connected to resistor R79, the other end of bidirectional diode D33, capacitor C136, resistor R253, the other end of capacitor C135 and one end of common mode inductor L3 respectively, pin 7 of chip U6 is electrically connected to resistor R74, resistor R The other end of 74 is electrically connected to the other end of the bidirectional diode D32, the other end of the resistor R76, the other end of the capacitor C134, the other end of the resistor R253, the other end of the capacitor C135 and one end of the common-mode inductor L3, one end of the resistor R76 is grounded, pin 6 of the chip U6 is electrically connected to the other end of the capacitor C127, the other end of the capacitor C126 and the other end of the resistor R79, and are commonly connected to a 5V power supply, and the other two ends on the same side of the common-mode inductor L3 are electrically connected to an external display.
[0013] On the basis of the above technical solution, preferably, it also includes a power module, the output end of the power module is electrically connected to the input end of the driving module, storage module, display communication module and controller, and is used to provide power to the driving module, storage module, display communication module and controller.
[0014] On the basis of the above technical scheme, preferably, the power module includes a chip U42B, a diode D101, a diode D100, a capacitor C303, a battery BT1, an inductor L56, a capacitor C313, a capacitor C47, a three-terminal regulator Q4, a capacitor C88, a capacitor C150, a capacitor C314, a capacitor C315, and a capacitor C151, wherein the power module has a first power output terminal, a second power output terminal, and a third power output terminal, the first power output terminal is electrically connected to the output terminal of the chip U42B, and outputs a 3V voltage to the outside, the pin 6 of the chip U42B is electrically connected to the negative electrode of the diode D101, the negative electrode of the diode D100 and the capacitor C303, the positive electrode of the diode D101 is electrically connected to the second power output terminal, and outputs a 3V voltage to the outside, the positive electrode of the diode D100 is electrically connected to the positive electrode of the battery BT1, and the negative electrode of the battery BT1 It is electrically connected to the other end of capacitor C303 and is commonly grounded. Pin 39 of chip U42B is respectively electrically connected to inductor L56, capacitor C313, capacitor C47 and the input end of the three-terminal regulator Q4. The other end of inductor L56 is electrically connected to the output end of the third power supply and outputs 3V voltage to the outside. Pin 38 of chip U42B is respectively electrically connected to the output end of the three-terminal regulator Q4 and capacitor C88. Pin 81 of chip U42B is respectively electrically connected to capacitor C150 and capacitor C314. Pin 125 of chip U42B is respectively electrically connected to capacitor C315 and capacitor C151. The other end of capacitor C47 is electrically connected to the other end of capacitor C313, the ground end of the three-terminal regulator Q4, the other end of capacitor C88, the other end of capacitor C150, the other end of capacitor C314, the other end of capacitor C315 and the other end of capacitor C151, and are commonly grounded.
[0015] On the basis of the above technical solution, preferably, the model of the chip U1 is TPS54329E.
[0016] The medium frequency welding power-off protection system of the utility model has the following beneficial effects compared with the prior art:
[0017] (1) The power-off support module can provide a short period of power to the drive module and the storage module, so that the calculation and processing data in the drive module can be transferred to the storage module for storage. In the event of a sudden power outage, it has a good protection effect and prevents data loss;
[0018] (2) The controller is set to communicate with the driving module, and the controller is electrically connected to the display communication module. Then, the calculation data processed by the driving module can be transmitted to the display communication module through the controller and displayed on the display, which is convenient for people to observe. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below 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.
[0020] Figure 1 This is a flow chart of the medium frequency welding power-off protection system of the utility model;
[0021] Figure 2 This is a schematic diagram of the power-off support module circuit of the medium frequency welding power-off protection system of the utility model;
[0022] Figure 3 This is a schematic diagram of the voltage conversion unit circuit of the medium frequency welding power-off protection system of the utility model;
[0023] Figure 4 This is a schematic diagram of a terminal circuit of a portion of a driving module of the medium frequency welding power-off protection system of the utility model;
[0024] Figure 5 This is a schematic diagram of the terminal circuit of another part of the driving module of the medium frequency welding power-off protection system of the utility model;
[0025] Figure 6 It is a circuit diagram of a storage module of the medium frequency welding power-off protection system of the utility model;
[0026] Figure 7 It is a circuit diagram of a controller of the medium frequency welding power-off protection system of the utility model;
[0027] Figure 8 This is a schematic diagram of the power module circuit of the medium frequency welding power-off protection system of the utility model;
[0028] Fig. 9 It is a schematic diagram of the display communication module of the medium frequency welding power-off protection system of the utility model. DETAILED DESCRIPTION
[0029] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] like Figure 1As shown, a medium frequency welding power-off protection system of the utility model includes a power-off support module 1, a driving module 2 and a storage module 3, wherein the output end of the power-off support module 1 is electrically connected to the input end of the driving module 2 and the storage module 3 respectively, and the output end of the driving module 2 is electrically connected to the input end of the storage module 3. The power-off support module 1 is used to provide power to the driving module 2 and the storage module 3 when the power is off, so that the data of the driving module 2 is input into the storage module 3 for storage.
[0031] It should be noted that in the event of a sudden power outage, the power-off support module 1 can provide a short period of power to the drive module 2 and the storage module 3, so that the calculation and processing data in the drive module 2 can be transferred to the storage module 3 for storage, which has a good protection effect and prevents data loss.
[0032] like Figure 2 As shown, as a preferred implementation, the power-off support module 1 in this embodiment includes a chip U1, a resistor R245, a resistor R137, a capacitor C141, a capacitor C142, a capacitor C289, a capacitor C335, a capacitor C120, a capacitor C171, a capacitor C172, a supercapacitor unit, a capacitor C170, a resistor R68, a capacitor C173, a resistor R224, a capacitor C169, a capacitor C175, a capacitor C176 and an inductor L10, wherein the chip Pin 1 of U1 is electrically connected to one end of capacitor C170, pin 3 of the chip U1 is electrically connected to the other end of capacitor C170 and one end of inductor L10 respectively, the other end of inductor L10 is electrically connected to the positive electrode of resistor R68, capacitor C173, capacitor C169, capacitor C175, capacitor C176 and the output end of power-off support module 1 respectively, pin 5 of chip U1 is electrically connected to resistor R224, the other end of capacitor C173 and the other end of resistor R68 respectively, chip Pin 7 of U1 is electrically connected to resistor R245, the other end of resistor R245 is electrically connected to the input end of power-off support module 1, capacitor C120, capacitor C335, the positive electrode of capacitor C289, resistor R137, pin 2 of chip U1 and one end of the super capacitor unit, the other end of resistor R137 is electrically connected to the positive electrode of capacitor C141, capacitor C142 and the power input end, the negative electrode of capacitor C141 and the other end of capacitor C142 are grounded, and the pin of chip U1 is electrically connected to the positive electrode of capacitor C141, capacitor C142 and the power input end, respectively. 8 is electrically connected to capacitor C171, pin 6 of chip U1 is electrically connected to capacitor C172, the negative electrode of capacitor C289 is electrically connected to the other end of capacitor C335, the other end of capacitor C120, the other end of capacitor C171, the other end of capacitor C172, pin 9 of chip U1, pin 4 of chip U1, the other end of resistor R224, the other end of capacitor C169, the other end of capacitor C175, the negative electrode of capacitor C176 and the other end of the supercapacitor unit, and are commonly grounded.
[0033] The supercapacitor unit includes a capacitor C131, a capacitor C1, a resistor R290, a diode D23, a Zener diode D20, a Zener diode D21, a resistor R288, a resistor R289, a resistor R286 and a resistor R287. The cathode of the capacitor C131, the anode of the Zener diode D21 and one end of the resistor R288 are electrically connected, and are electrically connected to the cathode of the capacitor C289. The other end of the resistor R288 is electrically connected to the resistor R289 and the cathode of the Zener diode D21, respectively. The other end of the resistor R289 is electrically connected to the cathode of the Zener diode D21. The cathode of the voltage-stabilizing diode D21 and the anode of the capacitor C131 are respectively electrically connected to the resistor R286, the anode of the voltage-stabilizing diode D20 and the cathode of the capacitor C1, the other end of the resistor R286 is respectively electrically connected to the resistor R287 and the cathode of the voltage-stabilizing diode D20, the other end of the resistor R287 is respectively electrically connected to the cathode of the voltage-stabilizing diode D20, the anode of the diode D23, the resistor R290 and the cathode of the capacitor C1, the cathode of the diode D23 is electrically connected to the other end of the resistor R290, and is also electrically connected to the capacitor C335.
[0034] It should be noted that a super capacitor is formed by capacitor C131, capacitor C1, resistor R290, diode D23, Zener diode D20, Zener diode D21, resistor R288, resistor R289, resistor R286 and resistor R287, which can supply power to drive module 2 and storage module 3 when power is off, and the power-off support is 10 seconds.
[0035] like Figure 1 As shown, this embodiment also includes a voltage conversion unit 4, the input end of the voltage conversion unit 4 is electrically connected to the external power supply, and the output end of the voltage conversion unit 4 is electrically connected to the input end of the power-off support module 1 for supplying power to the power-off support module 1.
[0036] like Figure 3 As shown, the voltage conversion unit 4 in this embodiment includes a chip M5, a capacitor C85, a capacitor C86, a capacitor C89 and a capacitor C90, wherein the pin 3 of the chip M5 is electrically connected to the capacitor C85 and the external 24V power supply respectively, the pin 3 of the chip M5 is electrically connected to the other end of the capacitor C85 and is commonly grounded, the pin 4 of the chip M5 is electrically connected to the positive electrode of the capacitor C86, the positive electrode of the capacitor C89, the capacitor C90 and the input end of the power-off support module 1 respectively, and the pin 6 of the chip M5 is electrically connected to the negative electrode of the capacitor C86, the negative electrode of the capacitor C89 and the other end of the capacitor C90 respectively, and is commonly grounded.
[0037] It should be noted that the voltage conversion unit 4 converts the input 24V voltage into a 5V voltage to supply power to the power-off support module 1 and to charge the super capacitor.
[0038] like Figure 4-6 As shown, the storage module 3 in this embodiment includes a capacitor C48 and a chip U3, pins 7 and 8 of the chip U3 are electrically connected to the output end of the power-off support module 1 and the capacitor C48 respectively, the other end of the capacitor C48 is grounded, pins 1, 2, 5 and 6 of the chip U3 are electrically connected to the output end of the driving module 2, and pin 3 of the chip U3 is electrically connected to the external power supply.
[0039] like Figure 1 and Figure 7 As shown, this embodiment further includes a display communication module 5 and a controller 6 , the driving module 2 is communicatively connected to the controller 6 , and the input end of the display communication module 5 is electrically connected to the output end of the controller 6 for displaying data of the driving module 2 .
[0040] like Fig. 9As shown, as a preferred implementation, the display communication module 5 in this embodiment includes a chip U6, a resistor R71, a resistor R70, a resistor R80, a capacitor C6, a capacitor C7, a capacitor C59, a capacitor C127, a capacitor C126, a resistor R75, a resistor R74, a resistor R76, a resistor R79, a bidirectional diode D32, a bidirectional diode D33, a capacitor C134, a capacitor C136, a resistor R253, a capacitor C135 and a common mode inductor L3, wherein the pin 1 of the chip U6 The pins 2 of the chip U6 are electrically connected to the other ends of the capacitors C7 and C6, respectively, and are connected to the external 3V power supply. The pins 3, 4, and 5 of the chip U6 are electrically connected to the resistors R71, R70, and R80, respectively. The other ends of the resistors R71, R70, and R80 are electrically connected to the output end of the controller 6. The pins 9 of the chip U6 are electrically connected to the capacitors C127 and C126, respectively. , resistor R76, capacitor C59, bidirectional diode D32, bidirectional diode D33, capacitor C134 and capacitor C136 are electrically connected, the other end of capacitor C59 is grounded, pin 8 of chip U6 is electrically connected to resistor R75, the other end of resistor R75 is electrically connected to resistor R79, the other end of bidirectional diode D33, capacitor C136, resistor R253, the other end of capacitor C135 and one end of common mode inductor L3 respectively, pin 7 of chip U6 is electrically connected to resistor R74, resistor The other end of R74 is electrically connected to the other end of the bidirectional diode D32, the other end of the resistor R76, the other end of the capacitor C134, the other end of the resistor R253, the other end of the capacitor C135 and one end of the common-mode inductor L3, one end of the resistor R76 is grounded, pin 6 of the chip U6 is electrically connected to the other end of the capacitor C127, the other end of the capacitor C126 and the other end of the resistor R79, and are commonly connected to a 5V power supply, and the other two ends on the same side of the common-mode inductor L3 are electrically connected to an external display.
[0041] It should be noted that the controller 6 displays some data of the driving module 2 on the display through the display communication module 5 for people to observe conveniently.
[0042] like Figure 1 As shown, this embodiment also includes a power module 7, the output end of the power module 7 is electrically connected to the input end of the driving module 2, the storage module 3, the display communication module 5 and the controller 6, and is used to provide power to the driving module 2, the storage module 3, the display communication module 5 and the controller 6.
[0043] like Figure 8As shown, as a preferred implementation, the power module 7 in this embodiment includes a chip U42B, a diode D101, a diode D100, a capacitor C303, a battery BT1, an inductor L56, a capacitor C313, a capacitor C47, a three-terminal regulator Q4, a capacitor C88, a capacitor C150, a capacitor C314, a capacitor C315, and a capacitor C151, wherein the power module 7 has a first power output terminal, a second power output terminal, and a third power output terminal, the first power output terminal is electrically connected to the output terminal of the chip U42B, and outputs a 3V voltage to the outside, the pin 6 of the chip U42B is electrically connected to the cathode of the diode D101, the cathode of the diode D100, and the capacitor C303, the anode of the diode D101 is electrically connected to the second power output terminal, and outputs a 3V voltage to the outside, the anode of the diode D100 is electrically connected to the anode of the battery BT1, and the battery BT1 The negative electrode of chip U42B is electrically connected to the other end of capacitor C303 and is commonly grounded. Pin 39 of chip U42B is electrically connected to inductor L56, capacitor C313, capacitor C47 and the input end of the three-terminal regulator Q4 respectively. The other end of inductor L56 is electrically connected to the output end of the third power supply and outputs 3V voltage to the outside. Pin 38 of chip U42B is electrically connected to the output end of the three-terminal regulator Q4 and capacitor C88 respectively. Pin 81 of chip U42B is electrically connected to capacitor C150 and capacitor C314 respectively. Pin 125 of chip U42B is electrically connected to capacitor C315 and capacitor C151 respectively. The other end of capacitor C47 is electrically connected to the other end of capacitor C313, the ground end of the three-terminal regulator Q4, the other end of capacitor C88, the other end of capacitor C150, the other end of capacitor C314, the other end of capacitor C315 and the other end of capacitor C151, and are commonly grounded.
[0044] Specifically, the model of the chip U1 in this embodiment is TPS54329E, the model of the chip U3 is EPCS4SI8N, the model of the chip U1 is EP4CE6E22C8N, the model of the controller 6 is STM32F407IGT6, and the model of the chip U42B is STM32F407IGT6.
[0045] Working principle:
[0046] The power-off support module 1 provides a short period of power supply to the driving module 2 and the storage module 3, so that the calculation and processing data in the driving module 2 are transmitted to the storage module 3 for storage, which plays a good protection effect during power failure. In addition, the controller 6 displays the calculation data of the driving module 2 on the display through the display communication module 5, which is convenient for people to observe.
[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A medium frequency welding power-off protection system, characterized in that: The invention comprises a power-off support module (1), a driving module (2) and a storage module (3), wherein the output end of the power-off support module (1) is electrically connected to the input end of the driving module (2) and the storage module (3), respectively, and the output end of the driving module (2) is electrically connected to the input end of the storage module (3); the power-off support module (1) is used to provide electric energy to the driving module (2) and the storage module (3) when power is off, so that data of the driving module (2) is input into the storage module (3) for storage.
2. The medium frequency welding power-off protection system according to claim 1, characterized in that: The power-off support module (1) comprises a chip U1, a resistor R245, a resistor R137, a capacitor C141, a capacitor C142, a capacitor C289, a capacitor C335, a capacitor C120, a capacitor C171, a capacitor C172, a super capacitor unit, a capacitor C170, a resistor R68, a capacitor C173, a resistor R224, a capacitor C169, a capacitor C175, a capacitor C176 and an inductor L10, wherein the pin 1 of the chip U1 is connected to one end of the capacitor C170. The pin 3 of the chip U1 is electrically connected to the other end of the capacitor C170 and one end of the inductor L10 respectively, and the other end of the inductor L10 is electrically connected to the positive electrode of the resistor R68, the capacitor C173, the capacitor C169, the capacitor C175, and the capacitor C176 and the output end of the power-off support module (1). The pin 5 of the chip U1 is electrically connected to the resistor R224, the other end of the capacitor C173, and the other end of the resistor R68 respectively. The pin 7 of the chip U1 is electrically connected to the resistor R 245 is electrically connected, the other end of the resistor R245 is electrically connected to the input end of the power-off support module (1), the positive electrode of the capacitor C120, the capacitor C335, the capacitor C289, the resistor R137, the pin 2 of the chip U1 and one end of the super capacitor unit, the other end of the resistor R137 is electrically connected to the positive electrode of the capacitor C141, the capacitor C142 and the power input end, the negative electrode of the capacitor C141 and the other end of the capacitor C142 are commonly grounded, the pin 8 of the chip U1 is electrically connected to the positive electrode of the capacitor C141, the capacitor C142 and the power input end, the negative electrode of the capacitor C141 and the other end of the capacitor C142 are commonly grounded, the pin 8 of the chip U1 is electrically connected to the positive electrode of the capacitor C141, the positive electrode of the capacitor C142 and the power input end ... C171 is electrically connected, pin 6 of chip U1 is electrically connected to capacitor C172, the negative electrode of capacitor C289 is electrically connected to the other end of capacitor C335, the other end of capacitor C120, the other end of capacitor C171, the other end of capacitor C172, pin 9 of chip U1, pin 4 of chip U1, the other end of resistor R224, the other end of capacitor C169, the other end of capacitor C175, the negative electrode of capacitor C176 and the other end of the supercapacitor unit, and are commonly grounded.
3. The medium frequency welding power-off protection system as claimed in claim 2, characterized in that: It also includes a voltage conversion unit (4), the input end of the voltage conversion unit (4) is electrically connected to an external power supply, and the output end of the voltage conversion unit (4) is electrically connected to the input end of the power-off support module (1) for supplying power to the power-off support module (1).
4. The medium frequency welding power-off protection system as claimed in claim 3, characterized in that: The voltage conversion unit (4) includes a chip M5, a capacitor C85, a capacitor C86, a capacitor C89 and a capacitor C90, wherein the pin 3 of the chip M5 is electrically connected to the capacitor C85 and the external 24V power supply respectively, the pin 3 of the chip M5 is electrically connected to the other end of the capacitor C85 and is commonly grounded, the pin 4 of the chip M5 is electrically connected to the positive electrode of the capacitor C86, the positive electrode of the capacitor C89, the capacitor C90 and the input end of the power-off support module (1) respectively, and the pin 6 of the chip M5 is electrically connected to the negative electrode of the capacitor C86, the negative electrode of the capacitor C89 and the other end of the capacitor C90 respectively, and is commonly grounded.
5. The medium frequency welding power-off protection system according to claim 1, characterized in that: The storage module (3) comprises a capacitor C48 and a chip U3, wherein pins 7 and 8 of the chip U3 are electrically connected to the output end of the power-off support module (1) and the capacitor C48 respectively, and the other end of the capacitor C48 is grounded, pins 1, 2, 5 and 6 of the chip U3 are electrically connected to the output end of the drive module (2), and pin 3 of the chip U3 is electrically connected to an external power supply.
6. The medium frequency welding power-off protection system according to claim 1, characterized in that: It also comprises a display communication module (5) and a controller (6), the drive module (2) being communicatively connected to the controller (6), and the input end of the display communication module (5) being electrically connected to the output end of the controller (6) for displaying data of the drive module (2).
7. The medium frequency welding power-off protection system according to claim 6, characterized in that: The display communication module (5) comprises a chip U6, a resistor R71, a resistor R70, a resistor R80, a capacitor C6, a capacitor C7, a capacitor C59, a capacitor C127, a capacitor C126, a resistor R75, a resistor R74, a resistor R76, a resistor R79, a bidirectional diode D32, a bidirectional diode D33, a capacitor C134, a capacitor C136, a resistor R253, a capacitor C135 and a common mode inductor L3, wherein the pin 1 of the chip U6 is connected to the capacitor C7, the capacitor C6 and the common mode inductor L3 respectively. The two terminals of the chip U6 are electrically connected to each other and connected to an external 3V power supply. The pin 2 of the chip U6 is electrically connected to the other end of the capacitor C7 and the other end of the capacitor C6, and is grounded. The pins 3, 4 and 5 of the chip U6 are electrically connected to the resistor R71, the resistor R70 and the resistor R80, respectively. The other ends of the resistors R71, R70 and R80 are electrically connected to the output end of the controller (6). The pin 9 of the chip U6 is electrically connected to the capacitor C127, the capacitor C126, the resistor R76, the resistor R80, respectively. Capacitor C59, bidirectional diode D32, bidirectional diode D33, capacitor C134 and capacitor C136 are electrically connected, the other end of capacitor C59 is grounded, pin 8 of chip U6 is electrically connected to resistor R75, the other end of resistor R75 is electrically connected to resistor R79, the other end of bidirectional diode D33, capacitor C136, resistor R253, the other end of capacitor C135 and one end of common mode inductor L3 respectively, pin 7 of chip U6 is electrically connected to resistor R74, the other end of resistor R74 is electrically connected to the The other end is electrically connected to the other end of the bidirectional diode D32, the other end of the resistor R76, the other end of the capacitor C134, the other end of the resistor R253, the other end of the capacitor C135 and one end of the common-mode inductor L3. One end of the resistor R76 is grounded. Pin 6 of the chip U6 is electrically connected to the other end of the capacitor C127, the other end of the capacitor C126 and the other end of the resistor R79, and are commonly connected to a 5V power supply. The other two ends on the same side of the common-mode inductor L3 are electrically connected to an external display.
8. The medium frequency welding power-off protection system as claimed in claim 7, characterized in that: The invention also comprises a power module (7), wherein the output end of the power module (7) is electrically connected to the input ends of the driving module (2), the storage module (3), the display communication module (5) and the controller (6), and is used to provide power to the driving module (2), the storage module (3), the display communication module (5) and the controller (6).
9. The medium frequency welding power-off protection system as claimed in claim 8, characterized in that: The power module (7) comprises a chip U42B, a diode D101, a diode D100, a capacitor C303, a battery BT1, an inductor L56, a capacitor C313, a capacitor C47, a three-terminal regulator Q4, a capacitor C88, a capacitor C150, a capacitor C314, a capacitor C315, and a capacitor C151, wherein the power module (7) has a first power output terminal, a second power output terminal, and a third power output terminal, the first power output terminal is electrically connected to the output terminal of the chip U42B, and outputs a 3V voltage externally, the pin 6 of the chip U42B is electrically connected to the cathode of the diode D101, the cathode of the diode D100, and the capacitor C303, the anode of the diode D101 is electrically connected to the second power output terminal, and outputs a 3V voltage externally, the anode of the diode D100 is electrically connected to the cathode of the battery BT1, the cathode of the battery BT1 is electrically connected to the capacitor C314, and the cathode of the battery BT1 is electrically connected to the capacitor C315. The other end of chip U42B is electrically connected to inductor L56, capacitor C313, capacitor C47 and the input end of the three-terminal regulator Q4, respectively. The other end of inductor L56 is electrically connected to the output end of the third power supply and outputs 3V voltage to the outside. Pin 38 of chip U42B is electrically connected to the output end of the three-terminal regulator Q4 and capacitor C88, respectively. Pin 81 of chip U42B is electrically connected to capacitor C150 and capacitor C314, respectively. Pin 125 of chip U42B is electrically connected to capacitor C315 and capacitor C151, respectively. The other end of capacitor C47 is electrically connected to the other end of capacitor C313, the ground end of the three-terminal regulator Q4, the other end of capacitor C88, the other end of capacitor C150, the other end of capacitor C314, the other end of capacitor C315 and the other end of capacitor C151, and are grounded.
10. The medium frequency welding power-off protection system according to claim 2, characterized in that: The model of the chip U1 is TPS54329E.
Citation Information
Patent Citations
Intelligent welding control system and method
CN109202250A