Expansion module of red light and optical power meter and welding machine

Abstract

The utility model provides an expansion module of a red light and optical power meter and a welding machine, which are applied to the technical field of welding machines, and comprise a main control chip MCU, a red light driving module and an optical power sampling module, the red light driving module and the optical power sampling module are respectively connected with the main control chip MCU, and the red light driving module and the optical power sampling module are respectively connected with the main control chip MCU. The red light driving module is driven by a red light driving signal output by the main control chip MCU to drive the red light emitter, and the optical power sampling module is driven by an optical power sampling signal output by the main control chip MCU to sample an optical power value. The main control chip MCU, the red light driving module and the optical power sampling module are integrated, and the main control chip MCU controls red light driving and optical power sampling in a centralized manner, so that miniaturization, intelligentization and high efficiency of equipment are realized.

Description

Technical Field

[0001] This utility model belongs to the field of fusion welding machine technology, specifically relating to an expansion module for a red light and optical power meter and a fusion welding machine. Background Technology

[0002] After splicing optical fibers, a fiber optic fusion splicer needs to be connected to a light source and optical power source to verify the splice effect. This process typically requires a desktop light source and optical power source, but configuring these for outdoor work requires additional power supplies, and they need to be connected and operated separately, increasing the workload of the operators. Using handheld light sources and optical power sources also requires carrying additional equipment, hindering ease of installation. Furthermore, operators must manually adjust the light source and optical power functions to complete the splice verification, making the process cumbersome. Utility Model Content

[0003] In view of the above-mentioned problems in the prior art, the purpose of this utility model is to provide an expansion module for a red light and optical power meter, which integrates the main control chip MCU, the red light driving module and the optical power sampling module, and enables the main control chip MCU to centrally control the red light driving and optical power sampling, thereby realizing the miniaturization, intelligence and efficiency of the device.

[0004] An expansion module for a red light and optical power meter includes a main control chip MCU, a red light driving module, and an optical power sampling module. The red light driving module and the optical power sampling module are connected to the main control chip MCU. The red light driving module is driven by the red light driving signal output by the main control chip MCU to drive the red light transmitter, and the optical power sampling module is driven by the optical power sampling signal output by the main control chip MCU to sample the optical power value.

[0005] Preferably, the red light driving module is connected to the red light emitter. The red light driving module includes transistors Q1 and Q2 and a potentiometer RT1. Transistors Q1 and Q2 are connected in series. Transistor Q2 is driven to conduct by the red light driving signal output by the main control chip MCU. The conduction voltage of transistor Q1 is controlled by potentiometer RT1. The output signal magnitude of the red light emitter is controlled by adjusting the conduction voltage of transistor Q1.

[0006] Preferably, the base of transistor Q2 is connected to the main control chip MCU through resistor R47, the collector of transistor Q2 is connected to the red light emitter through connector J5, and the emitter of transistor Q2 is connected to the collector of transistor Q1.

[0007] Preferably, the base of transistor Q1 is connected to resistor R44, and the other end of resistor R44 is connected to resistor R45, resistor R32, and potentiometer RT1. The other end of resistor R45 is grounded, and the other ends of resistor R32 and potentiometer RT1 are both connected to power supply voltage two. Capacitor C34 is also connected to power supply voltage two, and the other end of capacitor C34 is grounded. The emitter of transistor Q1 is grounded, and resistor R42 is connected between the emitter and collector of transistor Q1.

[0008] Preferably, the optical power sampling module is connected to the optical power meter. The optical power sampling module includes an amplifier U3, which receives the optical power signal from the optical power meter, amplifies the optical power signal, and transmits the amplified optical power signal to the main control chip MCU.

[0009] Preferably, the optical power sampling module includes a multiplexer U1, which is used to adjust the operational amplifier gain of the amplifier U3. The multiplexer U1 includes eight input / output pins IN0-IN7, which are respectively connected to resistors Rf with different resistance values. The A0, A1, and A2 pins of the multiplexer U1 are connected to the main control chip MCU, and receive the optical power sampling signal output by the main control chip MCU to select and turn on the corresponding signal channel.

[0010] Preferably, it also includes a voltage regulator module, which is used to convert the input power supply voltage into a corresponding supply voltage to supply power to the main control chip MCU, the red light driving module, and the light power sampling module respectively.

[0011] Preferably, the voltage regulator module includes a voltage conversion module one and a voltage conversion module two. The voltage conversion module one includes a buck converter U8. The VIN pin of the buck converter U8 is connected to the power supply voltage, which is filtered and stabilized by a filter network. A capacitor C13 is connected between the BST pin and the SW pin of the buck converter U8. The SW pin is also connected to an inductor L1, and the other end of the inductor L1 outputs the first power supply voltage.

[0012] Preferably, voltage conversion module two includes linear regulator U6 and linear regulator U7. Linear regulator U6 is used to convert the power supply voltage one output by voltage conversion module one into power supply voltage two and supply power to the optical power sampling module. Linear regulator U7 is used to convert the power supply voltage one output by voltage conversion module one into power supply voltage two and supply power to the main control chip MCU and the red light driving module.

[0013] Another objective of this utility model is to provide a fusion splicer including the aforementioned expansion module. The expansion module is connected to the fusion splicer via serial communication, and the fusion splicer is connected to a red light emitter and an optical power meter via the expansion module.

[0014] The beneficial effects of this utility model are as follows: The expansion module and fusion splicer of the red light and optical power meter integrate the red light driving and optical power sampling functions through the expansion module, and are uniformly controlled by the main control chip MCU. The main control chip MCU outputs the corresponding driving signal according to the actual needs, automatically switches and manages the red light emission and optical power measurement process, thereby improving the operating efficiency and user experience. This integrated design reduces the size and complexity of the equipment and improves the reliability and convenience of the overall system.

[0015] By connecting the red light emitter, optical power meter and fusion splicer through the expansion module, and realizing information exchange through serial communication, the fusion splicer integrates the light source function and optical power function that can work relatively independently while ensuring the original structure and function of the fusion splicer. This expands the function of the fusion splicer, realizes the miniaturization, intelligence and efficiency of the equipment, and improves its applicable scenarios. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a structural block diagram of the present invention;

[0018] Figure 2 This is a circuit diagram of the driving circuit of this utility model;

[0019] Figure 3 This is a circuit diagram of the sampling circuit of this utility model;

[0020] Figure 4 This is a circuit diagram of the voltage conversion module one of this utility model;

[0021] Figure 5 This is the circuit diagram of voltage conversion module two of this utility model;

[0022] Figure 6 This is the circuit diagram of the main control chip MCU of this utility model;

[0023] Figure 7 This is a flowchart of the workflow of the expansion module of this utility model. Detailed Implementation

[0024] Example 1

[0025] like Figure 1As shown, an expansion module for a red light and optical power meter is provided. The expansion module is connected to a fusion splicer via serial communication. The expansion module includes a main control chip (MCU), a red light driver module, an optical power sampling module, and a voltage regulator module. The red light driver module and the optical power sampling module are connected to the main control chip (MCU). The red light driver module is driven by the red light driver signal output by the main control chip (MCU) to drive the red light transmitter. The optical power sampling module is driven by the optical power sampling signal output by the main control chip (MCU) to sample the optical power value.

[0026] like Figure 2 , Figure 6 As shown, the red light driving module includes transistors Q1 and Q2 and potentiometer RT1. The base of transistor Q2 is connected to the main control chip MCU through resistor R47 and is turned on by the red light driving signal output by the main control chip MCU. The collector of transistor Q2 is connected to the red light emitter through connector J5. The emitter of transistor Q2 is connected to the collector of transistor Q1, forming a series connection.

[0027] The conduction voltage of transistor Q1 is controlled by potentiometer RT1. By adjusting the conduction voltage of transistor Q1, the output signal magnitude of the red light emitter is controlled.

[0028] Specifically, the base of transistor Q1 is connected to resistor R44. The other end of resistor R44 is connected to resistor R45, resistor R32, and potentiometer RT1. The other end of resistor R45 is grounded. The other ends of resistor R32 and potentiometer RT1 are both connected to power supply voltage two. Capacitor C34 is also connected to power supply voltage two. The other end of capacitor C34 is grounded. The emitter of transistor Q1 is grounded. Resistor R42 is connected between the emitter and collector of transistor Q1.

[0029] The on-state voltage of transistor Q1 is adjusted by potentiometer RT1, thereby adjusting the output signal of the red light emitter. When the main control chip MCU outputs a red light drive signal, the base of transistor Q2 receives and conducts, thereby driving the red light emitter and outputting the corresponding output signal.

[0030] Example 2

[0031] like Figure 3 , Figure 6 As shown, the structure of this embodiment is basically the same as that of Embodiment 1. The difference is that the optical power sampling module in this embodiment is connected to the optical power meter through connector J1, and includes a multiplexer U1 and an amplifier U3.

[0032] The input terminal of amplifier U3 is connected to the optical power meter via connector J1, and the output terminal of amplifier U3 is connected to the main control chip MCU via resistor R3. After receiving the optical power signal from the optical power meter, amplifier U3 amplifies the optical power signal and transmits the amplified optical power signal to the main control chip MCU. A capacitor C10 is connected between the input and output terminals of amplifier U3 to stabilize the input signal.

[0033] The operational amplifier gain of amplifier U3 is selected by multiplexer U1. In this embodiment, multiplexer U1 is model 74HC4051. Multiplexer U1 includes eight input / output pins IN0-IN7. The eight input / output pins of multiplexer U1 are respectively connected to resistors Rf with different resistance values, such as... Figure 3 As shown, resistor Rf includes resistors R2, R4, R5, R10, R11, R12, and R14. The A0, A1, and A2 pins of the multiplexer U1 are connected to the main control chip MCU. They receive the optical power sampling signal output by the MCU and select the corresponding signal channel to conduct, thereby connecting the corresponding resistor Rf to the circuit and enabling the selection of the operational amplifier gain of amplifier U3.

[0034] Example 3

[0035] like Figure 4 , Figure 5 As shown, the structure of this embodiment is basically the same as that in embodiment two. The difference is that in this embodiment, the voltage regulator module is used to convert the input power supply voltage into the corresponding power supply voltage to supply power to the main control chip MCU, the red light driving module, and the light power sampling module respectively.

[0036] The voltage regulator module includes voltage conversion module one and voltage conversion module two. For example, Figure 4 As shown, voltage conversion module one includes buck converter U8, model SCT2330. The VIN pin of buck converter U8 is connected to the power supply voltage, which is filtered and stabilized by a filter network. A capacitor C13 is connected between the BST pin and the SW pin of buck converter U8. An inductor L1 is also connected to the SW pin. The other end of inductor L1 outputs power supply voltage one. In this embodiment, power supply voltage one is 5V.

[0037] like Figure 5 As shown, voltage conversion module two includes linear regulators U6 and U7, both of which are model RT9080-33GJ5. Linear regulator U6 converts the power supply voltage I output from voltage conversion module one into power supply voltage II, supplying power to the optical power sampling module. Linear regulator U7 converts the power supply voltage I output from voltage conversion module one into power supply voltage II, supplying power to the main control chip MCU.

[0038] In this embodiment, the power supply voltage required by the optical power sampling module and the main control chip MCU is 3.3V. Therefore, the power supply voltage II output by the linear regulator U6 and the power supply voltage II output by the linear regulator U7 are both 3.3V.

[0039] After the expansion module of the red light and optical power meter is connected to the fusion splicer, the fusion splicer detects and determines whether the expansion module is connected. After the fusion splicer detects the expansion module, it controls the expansion module to work normally.

[0040] like Figure 7 As shown, the workflow of the expansion module for the red light and optical power meter is as follows:

[0041] After startup, data initialization is performed first. Then, it checks whether serial port data from the fusion splicer has been received. If serial port data is received, its validity is checked. If the data is valid, a function selection is performed based on the data. The function selection includes turning on the red light source, turning off the red light source, acquiring optical power sampling values, and switching sampling wavelength settings.

[0042] Example 4

[0043] The second objective of this invention is to provide a fusion splicer that connects to the expansion modules of the red light emitter and optical power meter described in Embodiment 3, enabling information exchange via serial communication. The fusion splicer is connected to the red light emitter and the optical power meter respectively through the expansion modules.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An expansion module for a red light and optical power meter, characterized in that, It includes a main control chip MCU, a red light driving module, and a light power sampling module. The red light driving module and the light power sampling module are connected to the main control chip MCU. The red light driving module is driven by the red light driving signal output by the main control chip MCU to drive the red light transmitter. The light power sampling module is driven by the light power sampling signal output by the main control chip MCU to sample the light power value.

2. The expansion module for the red light and optical power meter according to claim 1, characterized in that, The red light driving module is connected to the red light emitter. The red light driving module includes transistors Q1 and Q2 and potentiometer RT1. Transistors Q1 and Q2 are connected in series. Transistor Q2 is driven to conduct by the red light driving signal output by the main control chip MCU. The conduction voltage of transistor Q1 is controlled by potentiometer RT1. The output signal magnitude of the red light emitter is controlled by adjusting the conduction voltage of transistor Q1.

3. The expansion module for the red light and optical power meter according to claim 2, characterized in that, The base of transistor Q2 is connected to the main control chip MCU through resistor R47, the collector of transistor Q2 is connected to the red light emitter through connector J5, and the emitter of transistor Q2 is connected to the collector of transistor Q1.

4. The expansion module for the red light and optical power meter according to claim 2, characterized in that, The base of transistor Q1 is connected to resistor R44. The other end of resistor R44 is connected to resistor R45, resistor R32, and potentiometer RT1. The other end of resistor R45 is grounded. The other ends of resistor R32 and potentiometer RT1 are both connected to power supply voltage two. Capacitor C34 is also connected to power supply voltage two. The other end of capacitor C34 is grounded. The emitter of transistor Q1 is grounded. Resistor R42 is connected between the emitter and collector of transistor Q1.

5. The expansion module for the red light and optical power meter according to claim 1, characterized in that, The optical power sampling module is connected to the optical power meter. The optical power sampling module includes an amplifier U3. The amplifier U3 is used to receive the optical power signal from the optical power meter, amplify the optical power signal, and transmit the amplified optical power signal to the main control chip MCU.

6. The expansion module for the red light and optical power meter according to claim 5, characterized in that, The optical power sampling module includes a multiplexer U1, which is used to adjust the operational amplifier gain of amplifier U3. The multiplexer U1 includes eight input / output pins IN0-IN7, which are connected to resistors Rf of different values. The A0, A1, and A2 pins of the multiplexer U1 are connected to the main control chip MCU and receive the optical power sampling signal output by the main control chip MCU to select and activate the corresponding signal channel.

7. The expansion module for the red light and optical power meter according to claim 1, characterized in that, It also includes a voltage regulator module, which is used to convert the input power supply voltage into the corresponding supply voltage to supply power to the main control chip MCU, the red light driving module, and the light power sampling module respectively.

8. The expansion module for the red light and optical power meter according to claim 7, characterized in that, The voltage regulation module includes a voltage conversion module one and a voltage conversion module two. The voltage conversion module one includes a buck converter U8. The VIN pin of the buck converter U8 is connected to the power supply voltage, which is filtered and stabilized by a filter network. A capacitor C13 is connected between the BST pin and the SW pin of the buck converter U8. The SW pin is also connected to an inductor L1, and the other end of the inductor L1 outputs the first power supply voltage.

9. The expansion module for the red light and optical power meter according to claim 8, characterized in that, The voltage conversion module 2 includes a linear regulator U6 and a linear regulator U7. The linear regulator U6 is used to convert the power supply voltage 1 output by the voltage conversion module 1 into the power supply voltage 2 and supply power to the optical power sampling module. The linear regulator U7 is used to convert the power supply voltage 1 output by the voltage conversion module 1 into the power supply voltage 2 and supply power to the main control chip MCU and the red light driving module.

10. A welding machine, characterized in that, The device includes an expansion module for the red light emitter and the optical power meter as described in any one of claims 1 to 8. The expansion module is connected to the fusion splicer via serial communication, and the fusion splicer is connected to the red light emitter and the optical power meter respectively through the expansion module.

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