Wiring terminal soldering tin fusion welding method and device, storage medium and electronic device

Abstract

The invention discloses a wiring terminal soldering tin fusion welding method and device, a storage medium and an electronic device, and relates to the technical field of welding. The method comprises the steps that threading crimping processing is carried out on a target wiring terminal, the processed target wiring terminal is obtained, a soldering tin layer is arranged in the target wiring terminal, and a protective sleeve is arranged outside the target wiring terminal; the drop point position of the arc generator on the soldering tin layer is determined, and the drop point position is located at the position, farthest from the protective sleeve, on the soldering tin layer; and based on the target switching circuit, an arc generator is controlled to heat the drop point position so as to establish electrical connection between the target wiring terminal and the metal part, and the magnitude of the output current of the target switching circuit is controlled based on a preset pulse width modulation strategy. And the output current of the target switching circuit is used for controlling the heating energy of the arc generator. The technical problem that the temperature of the welding point cannot be accurately controlled in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, and in particular to a method, a device, a storage medium and an electronic device for soldering a terminal. Background Art

[0002] At present, local soldering technologies include manual soldering, wave soldering, reflow soldering, laser soldering and ultrasonic soldering. The process technology of manual soldering is complex, not suitable for automated equipment, and the temperature cannot be accurately controlled. The equipment cost of wave soldering is high, the heating area is too large, and the temperature cannot be accurately controlled. Reflow soldering also has a large heating area, and the temperature cannot be accurately controlled, which will damage the sheath. The cost of laser welding equipment is high, and the skill requirements for operators are also high, so the cost is extremely high. At the same time, the laser generator power equipment is heavy and not suitable for promotion and use. The cost of ultrasonic welding equipment is also high, and there are certain limitations on the adaptability of welding materials. It cannot accurately control the temperature and welding heating point, and the cost is high, so it is not suitable for promotion and use.

[0003] Therefore, traditional automatic crimping machines lack welding functions, and substation secondary wiring lacks available automatic crimping equipment to achieve an integrated process of wire stripping, twisting, tinning, welding, and crimping. These processes can only be completed manually, which is inefficient and the wiring quality is difficult to control. Summary of the invention

[0004] The embodiments of the present invention provide a method, device, storage medium and electronic device for soldering a connection terminal, so as to at least solve the technical problem in the related art that the temperature of the soldering point cannot be accurately controlled.

[0005] According to one embodiment of the present invention, a method for soldering a terminal block is provided, the method comprising: performing a threading and crimping process on a target terminal block to obtain a processed target terminal block, wherein a solder layer is provided inside the target terminal block and a protective cover is provided outside the target terminal block; determining a landing point of an arc generator on the solder layer, wherein the landing point is located at a position on the solder layer farthest from the protective cover; controlling the arc generator to heat the landing point based on a target switching circuit to establish an electrical connection between the target terminal block and a metal component, wherein the output current of the target switching circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switching circuit is used to control the heating energy of the arc generator.

[0006] Optionally, the arc generator includes a first discharge electrode and a second discharge electrode, and determining the landing point of the arc generator on the solder layer includes: controlling a first relative position of the first discharge electrode and the solder layer based on a mechanical positioning system; controlling a second relative position of the second discharge electrode and the solder layer based on the mechanical positioning system; and determining the landing point based on the first relative position and the second relative position.

[0007] Optionally, controlling the arc generator to heat the landing point based on the target switching circuit includes: repeatedly controlling the arc generator to heat the landing point based on the target switching circuit within a preset period.

[0008] Optionally, repeatedly controlling the arc generator to heat the landing point based on the target switching circuit within a preset period includes: controlling the working state of the target switching circuit based on a preset duty cycle within the preset period; controlling the output current of the high-voltage package in the target switching circuit based on the working state, wherein the first output end of the high-voltage package is electrically connected to the first discharge electrode, and the second output end of the high-voltage package is electrically connected to the second discharge electrode; and controlling the heating energy of the arc generator based on the output current of the high-voltage package to heat the landing point.

[0009] Optionally, controlling the operating state of the target switching circuit based on a preset duty cycle within a preset period includes: determining an input level of pulse width modulation control based on a preset duty cycle within a preset period; and controlling the operating state of the target switching circuit based on the input level of pulse width modulation control.

[0010] Optionally, controlling the working state of the target switch circuit based on the input level of the pulse width modulation control includes: in response to the input level of the pulse width modulation control being a high level, controlling the target switch circuit to operate; in response to the input level of the pulse width modulation control being a low level, controlling the target switch circuit to stop operating.

[0011] According to one embodiment of the present invention, a terminal soldering device is also provided, the device comprising: a crimping module, used to perform threading and crimping processing on a target terminal to obtain a processed target terminal, wherein a solder layer is provided inside the target terminal, and a protective cover is provided outside the target terminal; a determination module, used to determine the landing point of an arc generator on the solder layer, wherein the landing point is located at the position on the solder layer farthest from the protective cover; a heating module, used to control the arc generator to heat the landing point based on a target switching circuit to establish an electrical connection between the target terminal and a metal component, wherein the output current of the target switching circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switching circuit is used to control the heating energy of the arc generator.

[0012] Optionally, the arc generator includes a first discharge electrode and a second discharge electrode, and the determination module is also used to control a first relative position of the first discharge electrode and the solder layer based on a mechanical positioning system; control a second relative position of the second discharge electrode and the solder layer based on the mechanical positioning system; and determine a landing point position based on the first relative position and the second relative position.

[0013] Optionally, the heating module is further configured to repeatedly control the arc generator to heat the landing position based on the target switching circuit within a preset cycle.

[0014] Optionally, the heating module is also used to control the working state of the target switching circuit based on a preset duty cycle within a preset period; control the output current of the high-voltage package in the target switching circuit based on the working state, wherein the first output end of the high-voltage package is electrically connected to the first discharge electrode, and the second output end of the high-voltage package is electrically connected to the second discharge electrode; control the heating energy of the arc generator based on the output current of the high-voltage package to heat the landing position.

[0015] Optionally, the heating module is further used to determine an input level of the pulse width modulation control based on a preset duty cycle within a preset period; and control the working state of the target switch circuit based on the input level of the pulse width modulation control.

[0016] Optionally, the heating module is further configured to control the target switch circuit to operate in response to the input level of the pulse width modulation control being a high level; and to control the target switch circuit to stop operating in response to the input level of the pulse width modulation control being a low level.

[0017] According to one embodiment of the present invention, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute any of the above-mentioned terminal soldering methods when running on a computer or a processor.

[0018] According to one embodiment of the present invention, there is also provided an electronic device, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute any of the above-mentioned methods for soldering terminal.

[0019] According to one embodiment of the present invention, a computer program product is also provided, including a computer program, and when the computer program is executed by a processor, the computer program implements any of the above-mentioned methods for soldering terminal.

[0020] In an embodiment of the present invention, the target terminal is subjected to a threading and crimping process to obtain a processed target terminal, wherein a solder layer is provided inside the target terminal and a protective cover is provided outside the target terminal; the landing position of the arc generator on the solder layer is determined, wherein the landing position is located at the position on the solder layer farthest from the protective cover; the arc generator is controlled to heat the landing position based on the target switch circuit to establish an electrical connection between the target terminal and the metal component, wherein the output current of the target switch circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switch circuit is used to control the heating energy of the arc generator, achieving the purpose of ensuring the heating energy of terminals of different models by controlling the arc heating design through the duty cycle, thereby achieving the simultaneous control of the heat transfer speed. The technical effect of achieving tin melting for terminals of different sizes and models while ensuring that the terminal cover is not deformed by heat is solved, thereby solving the technical problem that the temperature of the welding point cannot be accurately controlled in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 is a flow chart of a method for soldering a terminal according to one embodiment of the present invention;

[0023] Figure 2 is a flow chart of a local solder melting technique inside a tubular terminal with controllable energy according to one embodiment of the present invention;

[0024] Figure 3 is a structural diagram of a tubular terminal according to one embodiment of the present invention;

[0025] Figure 4 is another structural diagram of a tubular terminal according to one embodiment of the present invention;

[0026] Figure 5 is an arc welding control circuit diagram according to one embodiment of the present invention;

[0027] Figure 6 is a relative position distribution diagram of the discharge electrode and the terminal according to one embodiment of the present invention;

[0028] Figure 7 The figure is a structural block diagram of a terminal solder melting device according to one embodiment of the present invention. DETAILED DESCRIPTION

[0029] To facilitate understanding, some descriptions of concepts related to the embodiments of the present invention are exemplarily provided for reference.

[0030] As shown below:

[0031] Zero Voltage Switching Circuit (ZVS) is a circuit technology used in power electronic converters to reduce switching losses and improve efficiency. In traditional switching circuits, the switch element will generate high voltage and current overshoot when it is turned on and off, resulting in energy loss and electromagnetic interference. The ZVS circuit reduces the switching loss at the moment of switching by switching the switch element under zero voltage conditions, that is, the voltage is zero when the switch element is turned on, thereby achieving higher conversion efficiency and lower electromagnetic interference.

[0032] Pulse Width Modulation (PWM) is a signal transmission technology used to control analog circuits with digital signals. In PWM, the signal sends pulses at a fixed frequency, but the width of the pulse (i.e., duty cycle) varies as needed to simulate different analog signal levels.

[0033] Arc welding is a welding technique that creates an electric arc to heat and melt the metal in the weld area, thereby joining metal parts. The arc is produced by a gas discharge between two electrodes, usually requiring a power source to generate a high voltage current.

[0034] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0035] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In the description of this embodiment, unless otherwise specified, the meaning of "multiple" is two or more. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0036] According to one embodiment of the present invention, an embodiment of a method for soldering a terminal block is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0037] The method embodiment can be executed in an electronic device including a memory and a processor, a similar control device or a system. Taking an electronic device as an example, the electronic device may include one or more processors and a memory for storing data. Optionally, the electronic device may also include a communication device and a display device for communication functions. It can be understood by a person of ordinary skill in the art that the above structural description is only illustrative and does not limit the structure of the above electronic device. For example, the electronic device may also include more or fewer components than the above structural description, or have a configuration different from the above structural description.

[0038] The processor may include one or more processing units. For example, the processor may include a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processing (DSP) chip, a microcontroller unit (MCU), a field-programmable gate array (FPGA), a neural network processor (NPU), a tensor processing unit (TPU), an artificial intelligence (AI) type processor, and the like. Among them, different processing units may be independent components or integrated into one or more processors. In some instances, the electronic device may also include one or more processors.

[0039] The memory can be used to store computer programs, such as storing the computer program corresponding to the terminal solder melting method in the embodiment of the present invention, and the processor implements the above-mentioned terminal solder melting method by running the computer program stored in the memory. The memory may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory may further include a memory remotely arranged relative to the processor, and these remote memories can be connected to the electronic device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0040] The communication device is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the communication device includes a network adapter (network interface controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the communication device can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0041] The display device may be, for example, a touch screen type liquid crystal display (LCD) and a touch display (also referred to as a "touch screen" or "touch display screen"). The liquid crystal display may enable a user to interact with a user interface of a mobile terminal. In some embodiments, the mobile terminal has a graphical user interface (GUI), and a user may interact with the GUI by finger contact and / or gestures on a touch-sensitive surface, wherein the human-computer interaction functions here may optionally include the following interactions: creating web pages, drawing, word processing, making electronic documents, games, video conferencing, instant messaging, sending and receiving emails, call interfaces, playing digital videos, playing digital music and / or web browsing, etc. The executable instructions for executing the above human-computer interaction functions are configured / stored in a computer program product or a readable storage medium executable by one or more processors.

[0042] In this embodiment, a method for soldering a terminal of an electronic device is provided. Figure 1 FIG. 1 is a flow chart of a method for soldering a terminal according to one embodiment of the present invention. Figure 1 As shown, the process includes the following steps:

[0043] Step S10, performing a threading and crimping process on the target terminal to obtain a processed target terminal, wherein a solder layer is provided inside the target terminal and a protective cover is provided outside the target terminal;

[0044] In the embodiment of the present invention, the target terminal may be understood as a specific type of terminal used to connect a wire or a cable in a power system.

[0045] A solder layer is provided inside the target terminal, and a protective cover is provided outside the target terminal. It is understandable that the target terminal is designed to have two parts, a metal conductor part and an external protective shell. The metal conductor part is located inside, usually a tubular structure made of copper, which is used to make electrical connections with the wire. Inside the metal conductor part of the target terminal, a solder layer is pre-provided. The solder layer can be understood to refer to a layer of solder material pre-plated inside the terminal. The solder layer will be melted during the subsequent arc heating process to enhance the electrical connection between the wire and the terminal. Exemplarily, the solder can be extended to tin, lead or lead-free solder, which is not limited here.

[0046] On the outside of the target terminal is a polyvinyl chloride (PVC) protective sleeve, which is used to insulate and protect the metal conductor from the external environment, such as preventing corrosion and mechanical damage. Exemplarily, the protective sleeve can be a plastic protective sleeve, that is, a PVC protective sleeve, which is not limited here.

[0047] The wire crimping process can be understood as an operation in the construction of the power system, which is used to connect the wire or cable to the terminal. It can be understood that in the automation equipment, there is usually a wire stripping and crimping module, which is used to strip the insulation layer of the wire to expose the metal core of the wire, and then insert the metal core into the metal conductor part of the target terminal, and use the crimping tool to press the wire core and the terminal tightly to form a tight electrical connection. This ensures a firm contact between the wire and the terminal, providing necessary preparation for subsequent welding.

[0048] Performing a threading and crimping process on the target terminal to obtain the processed target terminal can be understood as a standardized operation of physically and electrically connecting the wire or cable to the terminal.

[0049] In the embodiment of the present invention, the target terminal is subjected to a threading and crimping process to obtain a processed target terminal, wherein a solder layer is provided inside the target terminal and a protective cover is provided outside the target terminal. It can be understood that the metal core of the wire is first inserted into the metal conductor part of the target terminal and a stable electrical connection is formed by crimping. The target terminal is pre-plated with a solder layer inside and a PVC protective cover is provided outside, which provides necessary structural preparation and protection measures for subsequent arc heating fusion welding, ensuring that the welding process is both efficient and safe.

[0050] Step S11, determining the landing point of the arc generator on the solder layer, wherein the landing point is located at a position on the solder layer farthest from the protective cover;

[0051] In the embodiment of the present invention, the arc generator can be understood as a device capable of generating a high-temperature arc for metal welding, cutting or surface treatment, which is not limited here. The arc generator generates an arc discharge between two electrodes to convert electrical energy into heat energy for melting the solder layer to achieve welding.

[0052] The landing point can be understood as the specific heating position of the arc on the solder layer, that is, the place where the arc energy directly acts on and heats the solder. It is understandable that in order to improve the efficiency and quality of welding and protect the terminal from unnecessary heat damage, the landing point of the arc is set at the farthest point on the solder layer from the protective cover. This is because the heat generated by arc heating will diffuse in all directions. Directly applying the arc to the farthest point on the solder layer from the protective cover can minimize the heat transfer to the protective cover and prevent the PVC protective cover from deformation or damage due to overheating.

[0053] Exemplarily, the landing point of the arc generator can be determined by the mechanical positioning system and sensor of the equipment. The mechanical positioning system ensures that the electrode of the arc generator can be accurately moved to the target position, while the sensor (such as an infrared sensor or a visual detection system) is used to monitor and calibrate the relative position between the electrode and the solder layer to ensure that the arc is generated at the correct position, which is not limited here.

[0054] In the embodiment of the present invention, the landing point of the arc generator on the solder layer is determined, wherein the landing point is located at the position on the solder layer farthest from the protective cover, thereby ensuring that the energy of arc heating is effectively concentrated on the solder layer to complete the welding process, while not causing thermal damage to the protective cover of the terminal, thereby protecting the integrity and electrical performance of the entire terminal. As a result, not only the accuracy and efficiency of welding are improved, but also the safety of the welding process is increased.

[0055] Step S12, based on the target switch circuit, the arc generator is controlled to heat the landing position to establish an electrical connection between the target terminal and the metal part, wherein the output current of the target switch circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switch circuit is used to control the heating energy of the arc generator.

[0056] In the embodiment of the present invention, the target switching circuit can be understood as a circuit for controlling an arc generator, especially a circuit for controlling arc energy during arc welding. Exemplarily, the target switching circuit can be a ZVS circuit, which can achieve zero voltage switching during switch conversion, thereby reducing switching losses and improving circuit efficiency.

[0057] The output current size of the target switching circuit is controlled based on a preset pulse width modulation strategy. The output current size of the target switching circuit is used to control the heating energy of the arc generator, that is, the target switching circuit is used to control the high-frequency current output of the arc generator to ensure the efficiency and accuracy of arc heating.

[0058] The metal component can be understood as another conductor in an electrical system or circuit that needs to establish electrical contact with the target terminal. Exemplarily, the metal component can be extended to a wire, a component on a circuit board, etc., which is not limited here.

[0059] Electrical connection can be understood as the process of electrically connecting two or more metal parts through conductive materials (such as solder).

[0060] Pulse Width Modulation (PWM) is a technology that controls the output power of a circuit by changing the width of a pulse signal (i.e., the duration of a high level). The preset pulse width modulation strategy can be understood as a strategy based on PWM to control the on-time of the switch element in the target switch circuit, which is used to adjust the output current of the target switch circuit, thereby controlling the energy of arc heating, i.e., PWM control input.

[0061] For example, according to the terminal model, the material of the wire, the required welding quality and other parameters, a set of pulse signal width and frequency can be preset to accurately control the output current of the ZVS circuit. By adjusting the duty cycle of the PWM signal (the ratio of the pulse width to the total cycle time), the energy output of the arc heater is adjusted, thereby controlling the temperature and time of the heating process.

[0062] Controlling the arc generator based on the target switch circuit to heat the landing point to establish an electrical connection between the target terminal and the metal component can be understood as accurately controlling the target switch circuit parameters and arc energy to achieve precise heating of the local area and melt the solder layer, thereby forming a high-quality electrical connection point between the terminal and the metal component.

[0063] In the embodiment of the present invention, the arc generator is controlled based on the target switch circuit to heat the landing position to establish an electrical connection between the target terminal and the metal component, which not only improves the welding efficiency and connection quality, but also reduces energy consumption through precise energy control, reduces safety risks, and enhances the performance and reliability of the automated welding equipment. It can be understood that the ZVS circuit receives the PWM signal control, adjusts the size of the output current, and then accurately controls the heating energy of the arc generator at the landing position. The occurrence and heating of the arc melts the solder layer, and finally forms a molten weld between the target terminal and the metal component to establish an electrical connection. This process not only ensures the accuracy and consistency of welding, but also realizes efficient energy utilization and precise control of welding temperature through PWM control, avoids thermal damage to the terminal protective cover, and ensures the safety and quality controllability of the entire welding process.

[0064] The target terminal is subjected to a threading and crimping process to obtain a processed target terminal, wherein a solder layer is provided inside the target terminal and a protective cover is provided outside the target terminal; the landing point of the arc generator on the solder layer is determined, wherein the landing point is located at a position on the solder layer farthest from the protective cover; the arc generator is controlled to heat the landing point based on the target switch circuit to establish an electrical connection between the target terminal and the metal component, wherein the output current of the target switch circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switch circuit is used to control the heating energy of the arc generator, which not only improves the welding efficiency and the connection quality, but also reduces the energy consumption through precise energy control, reduces the safety risks, and enhances the performance and reliability of the automated welding equipment.

[0065] Through the above steps, the target terminal is subjected to threading and crimping processing to obtain the processed target terminal, wherein a solder layer is provided inside the target terminal and a protective cover is provided outside the target terminal; the landing position of the arc generator on the solder layer is determined, wherein the landing position is located at the position farthest from the protective cover on the solder layer; the arc generator is controlled to heat the landing position based on the target switch circuit to establish an electrical connection between the target terminal and the metal component, wherein the output current of the target switch circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switch circuit is used to control the heating energy of the arc generator, achieving the purpose of ensuring the heating energy of terminals of different models by controlling the arc heating design through the duty cycle, thereby achieving the simultaneous control of the heat transfer speed. The technical effect of achieving tin melting for terminals of different sizes and models while ensuring that the terminal cover is not deformed by heat, thereby solving the technical problem of the inability to accurately control the temperature of the welding point in the related technology.

[0066] Optionally, the arc generator includes a first discharge electrode and a second discharge electrode. In step S11, determining the landing position of the arc generator on the solder layer may include the following execution steps:

[0067] Step S111, controlling a first relative position between the first discharge electrode and the solder layer based on a mechanical positioning system;

[0068] Step S112, controlling a second relative position of the second discharge electrode and the solder layer based on the mechanical positioning system;

[0069] Step S113, determining the landing point position based on the first relative position and the second relative position.

[0070] In the embodiment of the present invention, the arc generator includes a first discharge electrode and a second discharge electrode. The first discharge electrode and the second discharge electrode can be understood as a pair of electrodes. The first discharge electrode and the second discharge electrode are part of the arc generator and are used to guide the generation of the arc.

[0071] Automated welding equipment is usually equipped with a high-precision mechanical positioning system that can accurately control the position of the electrode to ensure that arc heating occurs at the correct position on the solder layer.

[0072] The mechanical positioning system is responsible for moving the first discharge electrode to a specific position in the solder layer, which is calculated in advance based on the characteristics of the terminal and the wire to ensure that the arc heating can be carried out safely and effectively. At the same time, the mechanical positioning system is also responsible for moving the second discharge electrode to another position in the solder layer, opposite to the first discharge electrode, to prepare for the generation of the arc.

[0073] Then the relative position of the first discharge electrode and the second discharge electrode determines the landing point of the arc heating, that is, the exact position where the arc is generated. It can be understood that the landing point is the position on the solder layer farthest from the protective sleeve, which is intended to protect the outer insulating material from damage due to overheating.

[0074] When determining the landing position of the arc generator on the solder layer, the embodiment of the present invention can control the first relative position of the first discharge electrode and the solder layer based on the mechanical positioning system, and control the second relative position of the second discharge electrode and the solder layer based on the mechanical positioning system, and finally determine the landing position based on the first relative position and the second relative position. This ensures the accuracy and safety of arc heating, and at the same time ensures welding quality and production efficiency through efficient use of energy.

[0075] Optionally, in step S12, controlling the arc generator to heat the landing position based on the target switch circuit may include the following execution steps:

[0076] Step S121, repeatedly controlling the arc generator to heat the landing point based on the target switch circuit within a preset period.

[0077] In the embodiment of the present invention, the preset period can be understood as the time interval of repeated operation defined for the arc heating process in the circuit control process. The preset period determines the frequency of arc heating, that is, how long the heating operation is repeated, which is not limited here.

[0078] Repeating the control of the arc generator based on the target switch circuit to heat the landing point within the preset cycle can be understood as that within the preset cycle, the target switch circuit controls the start and stop of the arc generator according to the received signal (usually a PWM signal). That is, the arc heating will not be continuous, but will be repeatedly turned on and off at a preset time interval.

[0079] In the embodiment of the present invention, repeatedly controlling the arc generator to heat the landing point based on the target switching circuit within a preset period is essentially an efficient method for achieving precise control of welding energy and temperature management in automated welding. Through periodic energy adjustment, the accuracy and safety of the welding process are ensured, while improving welding efficiency and quality.

[0080] Optionally, in step S121, repeatedly controlling the arc generator to heat the landing position based on the target switch circuit within a preset period may include the following execution steps:

[0081] Step S1211, controlling the working state of the target switch circuit based on a preset duty cycle within a preset period;

[0082] Step S1212, controlling the output current of the high-voltage package in the target switch circuit based on the working state, wherein the first output end of the high-voltage package is electrically connected to the first discharge electrode, and the second output end of the high-voltage package is electrically connected to the second discharge electrode;

[0083] Step S1213, controlling the heating energy of the arc generator based on the output current of the high-voltage package to heat the landing point.

[0084] In the embodiment of the present invention, the preset duty cycle can be understood as the ratio of the high level duration in the PWM signal to the total cycle time, which determines the energy of the arc heating.

[0085] In step S1211, by changing the duty cycle of the PWM signal, the on and off time of the ZVS circuit can be accurately controlled, thereby adjusting the output current of the high-voltage package and ultimately controlling the energy of arc heating. This control process is repeated within a preset period to ensure accurate energy control during welding.

[0086] The high-voltage package in the target switch circuit is a power supply device that can generate high-voltage and high-frequency current to drive the arc heater. The two output ends of the high-voltage package are respectively connected to the first discharge electrode and the second discharge electrode of the arc generator to ensure that the current can pass through the electrodes to generate an arc and heat the solder layer.

[0087] The working state of the target switch circuit is determined by the duty cycle of the PWM signal. When the circuit is turned on, the high-voltage package starts to work and outputs high-voltage and high-frequency current to the two discharge electrodes of the arc generator. By controlling the working state of the circuit, that is, by adjusting the PWM signal, the output current of the high-voltage package can be controlled, thereby adjusting the energy level of the arc heating.

[0088] It is understandable that the magnitude of the high-voltage package output current directly affects the arc intensity and heating energy generated by the arc generator. In step S1213, by adjusting the output current of the high-voltage package, the energy output of the arc heater can be accurately controlled to ensure that the arc heating point achieves the ideal heating effect.

[0089] In an embodiment of the present invention, when repeatedly controlling the arc generator to heat the landing position based on the target switch circuit within a preset period, the working state of the target switch circuit can be controlled based on a preset duty cycle within the preset period. Then, the output current of the high-voltage package in the target switch circuit is controlled based on the working state, wherein the first output end of the high-voltage package is electrically connected to the first discharge electrode, and the second output end of the high-voltage package is electrically connected to the second discharge electrode. Finally, the heating energy of the arc generator is controlled based on the output current of the high-voltage package to heat the landing position. Thus, the output current of the high-voltage package is accurately adjusted by the target switch circuit under the control of the PWM signal, and the energy of the arc heating is controlled, thereby realizing the precise heating of the landing position of the solder layer by the automated welding equipment. This control method not only improves the efficiency and quality of welding, but also ensures the safety of the welding process and avoids thermal damage to the external protective cover of the terminal.

[0090] Optionally, in step S1211, controlling the working state of the target switch circuit based on a preset duty cycle within a preset period may include the following execution steps:

[0091] Step S12111, determining an input level of pulse width modulation control based on a preset duty cycle within a preset period;

[0092] Step S12112, controlling the working state of the target switch circuit based on the input level of the pulse width modulation control.

[0093] In the embodiment of the present invention, the input level of the pulse width modulation control can be understood as the level of the PWM signal applied to the target switch circuit, wherein a high level indicates that the circuit is turned on, and a low level indicates that the circuit is turned off. Based on the preset duty cycle, the control software can calculate the high level and low level duration of the PWM signal within the preset period, thereby determining the time sequence of the input level to achieve precise control of the on-time of the target switch circuit.

[0094] The working state (on or off) of the target switch circuit directly determines the generation and stop of high-frequency current, thereby affecting the energy supply of the high-voltage package to the arc generator. Based on the input level of PWM control, when the input level is high, the target switch circuit is turned on, allowing the high-voltage package to output current, thereby starting the arc heating process. When the input level is low, the target switch circuit is cut off, the high-voltage package stops outputting current, and the arc heating process is paused. As a result, this control method based on PWM signals enables automated welding equipment to accurately adjust the duration and energy output of arc heating within a preset cycle, ensuring that the welding process is both efficient and safe, while being able to adapt to the welding requirements of different terminals and wires.

[0095] In the embodiment of the present invention, when the working state of the target switch circuit is controlled based on the preset duty cycle within the preset period, the input level of the pulse width modulation control can be determined based on the preset duty cycle within the preset period, and then the working state of the target switch circuit is controlled based on the input level of the pulse width modulation control. As a result, the automated welding equipment can accurately control the on-time of the target switch circuit through the PWM signal, thereby accurately managing the output current of the high-voltage package, and ultimately achieving accurate control of the heating energy of the arc generator.

[0096] Optionally, in step S12112, controlling the working state of the target switch circuit based on the input level of the pulse width modulation control may include the following execution steps:

[0097] Step S121121, in response to the input level of the pulse width modulation control being a high level, controlling the target switch circuit to operate;

[0098] Step S121122, in response to the input level of the pulse width modulation control being a low level, controlling the target switch circuit to stop operating.

[0099] In the embodiment of the present invention, the input level of the PWM signal is used to control the switching state of the target switch circuit. When the input level of the PWM signal is high, it means that the signal received by the circuit indicates that the target switch circuit needs to be turned on. In response to the high level of the PWM signal, the target switch circuit starts to operate and allows current to pass, thereby driving the high-voltage package to generate high-voltage and high-frequency current, and then starting the arc heater to heat the landing position of the solder layer. This process ensures precise control of arc heating and can provide the required energy output within a preset heating cycle.

[0100] When the input level of the PWM signal is low, the control software or circuit recognizes the stop signal. In response to this signal, the target switch circuit is controlled to the cut-off state, that is, it stops running. Once the target switch circuit stops running, the current output of the high-voltage package will also stop, the arc heater will no longer generate an arc, and the heating process will be suspended. This mechanism allows the welding equipment to accurately control the heating time within a preset cycle, avoiding overheating or insufficient heating, ensuring the welding quality while protecting the external protective layer of the terminal from heat damage.

[0101] In the embodiment of the present invention, when the working state of the target switch circuit is controlled based on the input level of the pulse width modulation control, if the input level of the pulse width modulation control is a high level, the target switch circuit is controlled to operate, and if the input level of the pulse width modulation control is a low level, the target switch circuit is controlled to stop operating. This ensures the controllability of the energy output during the welding process, and by adjusting the duty cycle of the PWM signal, that is, the duration ratio of the high level and the low level, the energy output of the arc heater during the heating cycle can be flexibly adjusted to adapt to different welding requirements and material characteristics.

[0102] Figure 2 FIG. 1 is a flow chart of a local solder melting technique for a tube-type terminal with controllable energy according to one embodiment of the present invention. Figure 2 As shown, first, the tubular terminal with an internal solder layer is threaded and crimped, and then the ZVS circuit is used to generate high-frequency current in the primary coil of the transformer. The secondary side of the transformer outputs high-voltage and high-frequency current to guide it to the two poles of the arc generator. Then, the arc landing point on the terminal is controlled by the relative position of the terminal between the two poles of the arc generator to conduct the arc. The arc conduction energy heats the metal. Finally, the duty cycle of the ZVS circuit is repeatedly started and stopped through PWM control to control the heating energy of different terminals to coordinate the conduction of thermal energy and accurately heat the temperature, thereby achieving accurate control of the welding point temperature during the welding heating process and avoiding damage to the terminal sheath.

[0103] The scheme of the present invention is further described as follows: Figure 3 is a structural diagram of a tubular terminal according to one embodiment of the present invention, Figure 4 is another structural diagram of a tubular terminal according to one embodiment of the present invention, such as Figure 3 and Figure 4As shown in the figure, the tubular terminal block consists of a copper terminal barrel, an internal tinned layer and a rear PVC protective sleeve. The melting point of the internal tinned layer in the terminal structure is generally 183°C, if the melting point of the special low-temperature solder paste is 138°C. There is no fixed value for the melting temperature of PVC, which generally ranges from 80°C to 180°C. When the temperature is below 80°C, the polyvinyl chloride is in a hard state; when the temperature rises to 80°C to 130°C, the polyvinyl chloride begins to soften and becomes a viscoelastic state; at 160°C to 180°C, the polyvinyl chloride gradually changes to a viscous flow state. In order to cope with the low-resistance connectivity of the crimped terminal with the internal copper wire inserted, it is necessary to melt the solder between the copper wire and the copper shell without damaging the PVC shell.

[0104] The present invention designs a new local energy controllable heating arc welding process, which controls the generation and stop of the ZVS circuit through the PWM duty cycle to achieve welding heating at the front end, while controlling the rise of the rear end heat conduction temperature below 100 degrees without damaging the rear end PVC sheath. Figure 5 is an arc welding control circuit diagram according to one embodiment of the present invention, as shown in Figure 5 As shown in the figure, a circuit design for realizing arc heating energy regulation by controlling the ZVS circuit with a PWM duty cycle is shown. The circuit mainly includes components such as power supply, resistor, capacitor, inductor, transistor, integrated circuit, PWM control input and high-voltage package output discharge terminal. When the PWM control input is at a high level, the transistor is turned on, the ZVS circuit starts to work, and a high-voltage and high-frequency current is generated to provide arc heating; when the PWM control input is at a low level, the transistor is turned off, and the circuit stops working, thereby controlling the start and stop of arc heating and realizing precise energy regulation. Specifically, the PWM control input is the duty cycle energy regulation input point, and the high-voltage package output discharge terminal is directly connected to the two poles of the arc generator. The voltage between VCC and GND is usually between 12V-24V DC. The PWM control input can apply a control signal to the entire ZVS circuit through a single-chip microcomputer or PLC. When the PWM control input is at a high level, the MOS tube of Q3 is turned on, and the ZVS starts to work. The high-voltage package is controlled by the ZVS circuit to output a high-voltage and high-frequency current. When the PWM control input is at a low level, the MOS tube of Q3 is cut off, the ZVS does not work, and the high-voltage package outputs no current, which means that PWM duty cycle energy regulation control can be achieved.

[0105] When the control waveform of the PWM input is a square wave, that is, the time of the PWM control input high level is t, and the entire unit cycle is T as shown in the figure, then the duty cycle PWM = t / T, and the PWM value changes from 0 to 100%. The square wave duty cycle of the PWM control input is output by a programmable logic controller (PLC) or a single-chip microcomputer, and the length of t is adjusted to keep the cycle T unchanged. When t is larger, that is, the larger the PWM duty cycle, the longer the conduction time of the ZVS circuit in the unit cycle, the larger the average value of the energy output by the high-voltage package in a cycle T; and the smaller the PWM duty cycle, the smaller the average value of the energy output by the high-voltage package.

[0106] Figure 6 is a relative position distribution diagram of the discharge electrode and the terminal according to one embodiment of the present invention, such as Figure 6 As shown, by utilizing the small arc column characteristic, the relative position of the discharge electrode in the local heat penetration welding mechanism module and the terminal to be welded is controlled, so that the arc landing point, i.e. the heating point, falls on the front end of the terminal, and the solder between the copper at the front end is heated to a temperature of more than 250 degrees. At the same time, the temperature dissipation structure distance of heat conduction ensures that the PVC part at the rear end does not exceed 100 degrees.

[0107] In this embodiment, the model verification of copper tubular terminal blocks with diameters of 4 mm and 2 mm after crimping is described as follows:

[0108] (1) Analysis of heating after crimping of 4mm diameter terminals: The heating power is 40W, the heating time is 2s, and the PWM duty cycle is 100%. After 2s of heating, the temperature of 1 / 3 of the terminal head reaches 230℃, the temperature of the insulation sleeve is 119℃, and the residual heat of the terminal heats the insulation sleeve to 123℃ in 2.3s. The heating power is 50W, the heating time is 2s, and the PWM duty cycle is 80%. After 1.8s of heating, the temperature of 1 / 3 of the terminal head reaches 258℃, the temperature of the insulation sleeve is 117℃, and the residual heat heats the terminal to 128℃ in 2.2s.

[0109] (2) Analysis of heating after crimping of terminals with a diameter of 2 mm: The heating power is 15 W, the heating time is 2 s, and the PWM duty cycle is 100%. After 2 s of heating, the temperature of 1 / 3 of the terminal head reaches 245°C, the temperature of the insulation sleeve is 152°C, and the residual heat heats the insulation sleeve to 155°C; the heating power is 15 W, the heating time is 2 s, and the PWM duty cycle is 50%. The temperature of 1 / 3 of the terminal head reaches 230°C, the temperature of the insulation sleeve is 138°C, and the residual heat heats the insulation sleeve to 144°C in 1.6 s.

[0110] It can be seen that the present invention can ensure the heating energy of terminals of different models by controlling the duty cycle, and at the same time control the heat transfer speed. It can achieve tin melting for terminals of different sizes and models, while ensuring that the terminal sheath is not deformed by heat. In addition, the local heat penetration welding mechanism module in the present invention can more effectively utilize energy, reduce energy consumption, has a simple structure, a small size, and the ability to heat quickly, which is very suitable for melting tin, and is also suitable for different types of terminal delivery modules, and can be quickly replaced.

[0111] The process flow for pre-tinning terminals for secondary wiring of substations proposed in the present invention is mainly aimed at the processing flow of terminals, namely, the arc heating tin melting technology of the local solder melting technology inside the tube-type terminal with controllable energy. The process flow in the technical solution of the present invention utilizes arc discharge to realize the local heat penetration technology to heat the terminal to melt the internal solder. The circuit in the present invention is suitable for melting the solder layer inside the crimped terminal, and can also be used for other metals that need to be welded inside, but the heating device is not suitable for entering the application occasions. The PWM duty cycle design of the local solder melting technology inside the tube-type terminal with controllable energy of the present invention can realize the precise control of the arc heating energy, and the protection circuit design is realized through the controllable ZVS circuit design in the circuit. The present invention also includes the crystal circuit design of the PWM control input, such as Figure 5 Q3 in the circuit can be externally connected to a single-chip microcomputer or a PLC to adjust the duty cycle. The local heat penetration welding mechanism module designed by the present invention can more effectively utilize energy and reduce energy consumption. It has a simple structure and a small size. The rapid heating capability is very suitable for melting tin, and it is suitable for different types of terminal delivery modules and can be quickly replaced. The local heat penetration welding mechanism module uses the relative position design between the terminal and the discharge electrode to control the arc heating point, which can be conveniently used in automatic control.

[0112] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0113] In this embodiment, a terminal solder melting device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0114] Figure 7 FIG. 1 is a structural block diagram of a terminal solder melting device according to one embodiment of the present invention. Figure 3 As shown, a terminal soldering device 700 is used as an example, and the device includes: a crimping module 701, which is used to perform threading and crimping processing on the target terminal to obtain a processed target terminal, wherein a solder layer is provided inside the target terminal, and a protective cover is provided outside the target terminal; a determination module 702, which is used to determine the landing position of the arc generator on the solder layer, wherein the landing position is located at the position farthest from the protective cover on the solder layer; a heating module 703, which is used to control the arc generator to heat the landing position based on the target switch circuit to establish an electrical connection between the target terminal and the metal component, wherein the output current of the target switch circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switch circuit is used to control the heating energy of the arc generator.

[0115] Optionally, the arc generator includes a first discharge electrode and a second discharge electrode, and the determination module 702 is also used to control a first relative position of the first discharge electrode and the solder layer based on a mechanical positioning system; control a second relative position of the second discharge electrode and the solder layer based on the mechanical positioning system; and determine a landing point position based on the first relative position and the second relative position.

[0116] Optionally, the heating module 703 is further configured to repeatedly control the arc generator to heat the landing position based on the target switching circuit within a preset period.

[0117] Optionally, the heating module 703 is also used to control the working state of the target switching circuit based on a preset duty cycle within a preset period; control the output current of the high-voltage package in the target switching circuit based on the working state, wherein the first output end of the high-voltage package is electrically connected to the first discharge electrode, and the second output end of the high-voltage package is electrically connected to the second discharge electrode; control the heating energy of the arc generator based on the output current of the high-voltage package to heat the landing position.

[0118] Optionally, the heating module 703 is further configured to determine an input level of the pulse width modulation control based on a preset duty cycle within a preset period; and control a working state of the target switch circuit based on the input level of the pulse width modulation control.

[0119] Optionally, the heating module 703 is further configured to control the target switch circuit to operate in response to the input level of the pulse width modulation control being a high level; and to control the target switch circuit to stop operating in response to the input level of the pulse width modulation control being a low level.

[0120] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0121] An embodiment of the present invention further provides a computer-readable storage medium, in which a computer program is stored. The computer program is configured to execute the steps of any of the above method embodiments when running on a computer or a processor.

[0122] Optionally, in this embodiment, the computer-readable storage medium may be configured to store a computer program for performing the following steps:

[0123] Step S10, performing a threading and crimping process on the target terminal to obtain a processed target terminal, wherein a solder layer is provided inside the target terminal and a protective cover is provided outside the target terminal;

[0124] Step S11, determining the landing point of the arc generator on the solder layer, wherein the landing point is located at a position on the solder layer farthest from the protective cover;

[0125] Step S12, based on the target switch circuit, the arc generator is controlled to heat the landing position to establish an electrical connection between the target terminal and the metal part, wherein the output current of the target switch circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switch circuit is used to control the heating energy of the arc generator.

[0126] Optionally, in this embodiment, the above-mentioned computer-readable storage medium may include but is not limited to: a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and other media that can store computer programs.

[0127] An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0128] Optionally, in this embodiment, the processor in the electronic device may be configured to run a computer program to perform the following steps:

[0129] Step S10, performing a threading and crimping process on the target terminal to obtain a processed target terminal, wherein a solder layer is provided inside the target terminal and a protective cover is provided outside the target terminal;

[0130] Step S11, determining the landing point of the arc generator on the solder layer, wherein the landing point is located at a position on the solder layer farthest from the protective cover;

[0131] Step S12, based on the target switch circuit, the arc generator is controlled to heat the landing position to establish an electrical connection between the target terminal and the metal part, wherein the output current of the target switch circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switch circuit is used to control the heating energy of the arc generator.

[0132] An embodiment of the present invention further provides a computer program product, including a computer program, which implements the steps in any of the above method embodiments when executed by a processor.

[0133] Optionally, in this embodiment, the computer program in the above computer program product may be configured to perform the following steps when executed by a processor:

[0134] Step S10, performing a threading and crimping process on the target terminal to obtain a processed target terminal, wherein a solder layer is provided inside the target terminal and a protective cover is provided outside the target terminal;

[0135] Step S11, determining the landing point of the arc generator on the solder layer, wherein the landing point is located at a position on the solder layer farthest from the protective cover;

[0136] Step S12, based on the target switch circuit, the arc generator is controlled to heat the landing position to establish an electrical connection between the target terminal and the metal part, wherein the output current of the target switch circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switch circuit is used to control the heating energy of the arc generator.

[0137] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation modes, and this embodiment will not be described in detail here.

[0138] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0139] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0140] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0141] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0142] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0143] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, magnetic disk or optical disk, etc., various media that can store program codes.

[0144] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for soldering a terminal, characterized in that: The method comprises: Performing a threading and crimping process on the target wiring terminal to obtain a processed target wiring terminal, wherein a solder layer is provided inside the target wiring terminal and a protective cover is provided outside the target wiring terminal; Determining a landing point of the arc generator on the solder layer, wherein the landing point is located at a position on the solder layer farthest from the protective cover; The arc generator is controlled based on a target switch circuit to heat the landing point to establish an electrical connection between the target terminal and the metal part, wherein the output current of the target switch circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switch circuit is used to control the heating energy of the arc generator.

2. The method according to claim 1, characterized in that The arc generator includes a first discharge electrode and a second discharge electrode, and determining the landing position of the arc generator on the solder layer includes: Controlling a first relative position between the first discharge electrode and the solder layer based on a mechanical positioning system; controlling a second relative position between the second discharge electrode and the solder layer based on the mechanical positioning system; The landing point position is determined based on the first relative position and the second relative position.

3. The method according to claim 2, characterized in that The controlling the arc generator to heat the landing position based on the target switch circuit comprises: The arc generator is repeatedly controlled to heat the landing position based on the target switching circuit within a preset cycle.

4. The method according to claim 3, characterized in that The repeatedly controlling the arc generator to heat the landing position based on the target switch circuit within a preset period includes: Controlling the working state of the target switch circuit based on a preset duty cycle within the preset period; Controlling the output current of the high-voltage package in the target switch circuit based on the working state, wherein the first output end of the high-voltage package is electrically connected to the first discharge electrode, and the second output end of the high-voltage package is electrically connected to the second discharge electrode; The heating energy of the arc generator is controlled based on the output current of the high-voltage package to heat the landing point.

5. The method according to claim 4, characterized in that The controlling the working state of the target switch circuit based on a preset duty cycle within the preset period includes: determining an input level of pulse width modulation control based on the preset duty cycle within the preset period; The operating state of the target switching circuit is controlled based on the input level of the pulse width modulation control.

6. The method according to claim 5, characterized in that The step of controlling the working state of the target switch circuit based on the input level of the pulse width modulation control comprises: In response to the input level of the pulse width modulation control being a high level, controlling the target switch circuit to operate; In response to the input level of the pulse width modulation control being a low level, the target switch circuit is controlled to stop operating.

7. A terminal soldering device, characterized in that: The device comprises: A crimping module, used for performing a threading crimping process on a target terminal to obtain a processed target terminal, wherein a solder layer is provided inside the target terminal and a protective cover is provided outside the target terminal; A determination module, used to determine a landing point position of the arc generator on the solder layer, wherein the landing point position is located at a position on the solder layer farthest from the protective cover; A heating module is used to control the arc generator to heat the landing point based on a target switching circuit to establish an electrical connection between the target terminal and the metal part, wherein the output current of the target switching circuit is controlled based on a preset pulse width modulation strategy, and the output current of the target switching circuit is used to control the heating energy of the arc generator.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program is configured to execute the terminal soldering method described in any one of claims 1 to 6 when running on a computer or a processor.

9. A computer program product, characterized in that The invention comprises a computer program, which, when executed by a processor, implements the method for soldering the connection terminal described in any one of claims 1 to 6.

10. An electronic device comprising a memory and a processor, characterized in that: The memory stores a computer program, and the processor is configured to run the computer program to execute the terminal soldering method as described in any one of claims 1 to 6.

Images