Lithium battery multifunctional gas-free carbon dioxide arc welding machine
Through the lithium battery modular design and dual cooling system, the lithium battery multi-functional airless two-container welding machine solves the problems of large size and power dependence of traditional welding machines, and realizes the miniaturization of equipment and all-weather outdoor operation capabilities.
Patent Information
- Application Number
- CN202510658422.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2025-07-04
AI Technical Summary
Traditional second-hand welding machines are large in size and inconvenient to move, and rely heavily on fixed power supplies, making them difficult to use flexibly outdoors or long-distance mobile operation scenarios.
It adopts a modular design of lithium batteries, compatible with mains input, integrated battery protection board and dual cooling system, supports 48V/60V multi-spec lithium batteries, realizes miniaturization of equipment and independent power supply, and has the function of fast battery swap.
It realizes the portability and all-weather applicability of the welding machine, solves the difficulty in obtaining power supplies for traditional welding machines when operating outdoors, and improves the mobility and battery life of the equipment.
Smart Images

Figure CN120244160A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of CO2 welding machines, and more specifically, to a lithium battery multi-functional non-gas CO2 welding machine. Background Art
[0002] The CO2 welding machine, also known as the carbon dioxide gas shielded welding machine, is an arc welding equipment that uses carbon dioxide (CO2) as the shielding gas and belongs to a type of gas shielded welding (MIG / MAG welding). Its core principle is to spray CO2 gas through the welding torch to isolate the air during the welding process, preventing the molten metal from reacting with oxygen and nitrogen to oxidize or nitride, thereby ensuring the weld quality.
[0003] However, the existing CO2 welding machines have obvious defects. Traditional welding machines are relatively large in size and inconvenient to move, making it difficult to use flexibly in working scenarios that require frequent movement. At the same time, traditional welding machines rely heavily on fixed power sources, which greatly limits their use in long-distance mobile operations. For example, in outdoor construction, fieldwork and other scenarios, it is difficult to obtain a fixed power source, and additional power generation equipment often needs to be equipped, which not only increases costs but also brings many inconveniences and cannot meet the diverse welding operation requirements of modern times. Summary of the Invention
[0004] The present invention provides a lithium battery multi-functional non-gas CO2 welding machine to solve the problems existing in the prior art.
[0005] To achieve the above object, an embodiment of the present invention provides a lithium battery multi-functional non-gas CO2 welding machine, including: a main body, a front panel is provided at the front end of the main body, and a rear plate is provided at the rear end of the main body; a receiving space is provided between the bottom of the main body and the panel and the rear plate, and a plurality of batteries are provided in the receiving space.
[0006] Preferably, a handle is provided at the top of the main body; a side plate is rotatably connected to the side of the main body.
[0007] Preferably, a partition is provided inside the main body, a wire feeder and a damping shaft are provided on one side of the partition, and a main board, a conversion transformer and a radiator are provided on the other side.
[0008] Preferably, a display board is further provided between the main body and the panel; a cooling fan is further provided between the main body and the rear plate; a battery protection board is further provided between the main body and the battery; the battery is detachably arranged on the battery protection board, and the battery protection board has BMS function to provide safety protection, performance optimization and data management for the battery.
[0009] Preferably, a display screen, a current adjustment knob and a plurality of interfaces are provided on the panel.
[0010] Preferably, the interfaces include a CO2 welding torch interface, a manual arc welding interface, a grounding clamp port and a welding torch switch interface.
[0011] Preferably, the display screen includes a battery voltage display, a welding current setting display, and a welding voltage display.
[0012] Preferably, the rear plate is provided with a heat dissipation bar and an external power supply interface.
[0013] Compared with the prior art, the present invention has the following advantages: By
[0014] Portability and power adaptability: It supports 48V / 60V multi-specification lithium batteries and is compatible with mains input, breaking through the dependence of traditional welders on fixed power sources. No external generator is required for outdoor operations;
[0015] Quick battery replacement and endurance: The battery is modularly designed, can be quickly disassembled and assembled, and continuous operation can be achieved with multiple battery packs;
[0016] All-weather applicability: The sealed battery protection board and dual heat dissipation system ensure the stable operation of the internal environment of the device, solving the problems of extreme outdoor working conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.
[0018] Figure 1 The drawings are schematic diagrams of the main board structure of the present invention.
[0019] Figure 2 The drawings are schematic diagrams of the right internal structure of the present invention.
[0020] Figure 3 The drawings are schematic diagrams of the left internal structure of the present invention.
[0021] Figure 4 The drawings are schematic diagrams of the top internal structure of the present invention.
[0022] Reference numerals: 1, main body; 2, panel; 3, display screen; 4, current adjustment knob; 5, interface; 6, side plate; 7, partition; 8, wire feeder; 9, damping shaft; 10, conversion transformer; 11, battery protection board; 12, radiator; 13, display board; 14, rear plate; 15, main board; 16, external power supply interface; 17, battery. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0024] Please refer to the attached Figures 1-4 , which discloses a lithium battery multi-functional airless CO2 welding machine of the present invention, including: a main body 1, a panel 2 is provided at the front end of the main body 1, and a rear plate 14 is provided at the rear end of the main body 1; a receiving space is provided between the bottom of the main body 1, the panel 2 and the rear plate 14, and a plurality of batteries 17 are provided in the receiving space. Through the combination of the panel 2, the rear plate 14 and the main body 1, the device can form a closed structure to protect the internal components from external interference.
[0025] The battery 17 is located in the bottom receiving space, which can reduce the center of gravity of the device and improve the stability during portable movement; the design of multiple batteries supports long-term operation or quick replacement. The battery 17 supports 48V / 60V multi-specification lithium batteries, and realizes the miniaturization and mobility of the airless welding device through structural integration.
[0026] To further optimize the above technical solution, a handle is provided at the top of the main body 1; a side plate 6 is rotatably connected to the side of the main body 1. The handle at the top of the main body 1 allows the user to carry the device with one hand, with a weight balance design. There is a buckle on the side plate 6, which can be opened and closed for quick maintenance when changing the wire or in case of equipment failure.
[0027] To further optimize the above technical solution, a partition 7 is provided inside the main body 1. A wire feeder 8 and a damping shaft 9 are provided on one side of the partition 7, and a main board 15, a conversion transformer 10 and a radiator 12 are provided on the other side.
[0028] The setting of the partition 7 reduces electromagnetic interference, such as the interference of the wire feeder motor on the control circuit, and improves the stability of the device; the wire feeder 8 cooperates with the damping shaft 9 to accurately control the wire feeding speed. The damping shaft 9 adjusts the wire tension through friction to prevent the wire from slipping or jamming; the conversion transformer 10 converts the DC power of the battery into the AC power required for welding; the radiator 12 performs forced air cooling on the transformer and the main board to ensure continuous working performance.
[0029] To further optimize the above technical solution, a display board 13 is also provided between the main body 1 and the panel 2; a cooling fan is also provided between the main body 1 and the rear plate 14; a battery protection board 11 is also provided between the main body 1 and the battery 17; the battery 17 is detachably arranged on the battery protection board 11, and the battery protection board 11 has the BMS function to perform safety protection, performance optimization and data management on the battery.
[0030] The display panel 13 is integrated inside the panel, integrating a status monitoring circuit (battery voltage display, welding current setting display, and welding voltage display), and displaying parameters through the transparent window of the display screen 3 to avoid damage from external impacts; the cooling fan and the radiator 12 form an air duct to accelerate the discharge of hot air, adapting to high-load welding scenarios.
[0031] The battery protection board 11 has BMS functions (overcharge / overdischarge / short-circuit protection) to provide safety protection, performance optimization, and data management for the battery. The detachable design supports quick replacement of the battery pack, extending the device's battery life.
[0032] To further optimize the above technical solution, a display screen 3, a current adjustment knob 4, and multiple interfaces 5 are provided on the panel 2.
[0033] To further optimize the above technical solution, the interface 5 includes a MIG / MAG welding gun interface, a manual arc welding interface, a grounding clamp port, and a welding gun switch interface.
[0034] To further optimize the above technical solution, the display screen 3 includes a battery voltage display, a welding current setting display, and a welding voltage display.
[0035] The battery voltage display in the display screen 3 has a conversion of the battery charge percentage; the welding parameter display supports dual display of preset value / actual value; the voltage display includes switching between no-load / load states.
[0036] To further optimize the above technical solution, a heat dissipation bar and an external power supply interface 16 are provided on the rear panel 14.
[0037] Working principle:
[0038] During use, the user can lift the welding machine by the handle and move it to the working location. According to the welding requirements, select a suitable battery 17 and install it on the battery protection board 11. If an external power supply is needed, connect the external power supply through the external power supply interface 16 on the rear panel 14. Set the welding current through the current adjustment knob 4 on the panel 2, and the display screen 3 will display the corresponding setting information.
[0039] When performing MIG / MAG welding, connect the MIG / MAG welding gun to the MIG / MAG welding gun interface, connect the welding gun switch to the welding gun switch interface, and connect the grounding clamp to the grounding clamp port. The wire feeder 8 transports the welding wire under the control of the main board 15. The conversion transformer 10 converts the electrical energy of the battery or external power supply into a voltage suitable for welding and outputs it through the welding gun for welding. During the welding process, the radiator 12 and the cooling fan work to dissipate heat from the internal components, ensuring the stable operation of the welding machine. The display screen 3 displays information such as the battery voltage and welding voltage in real time, facilitating user monitoring.
[0040] When shielded metal arc welding is required, connect the shielded metal arc welding gun to the shielded metal arc welding interface and operate according to the corresponding welding operation process. When replacing the battery, just open the side plate 6, remove the old battery and install the new battery, which realizes fast battery replacement and ensures the continuity of the operation.
[0041] A lithium battery multi-functional non-gas shielded metal arc welding machine disclosed by the present invention solves the pain points of traditional equipment being bulky, relying on gas cylinders and fixed power sources through self-shielded wire technology and lithium battery drive, and is especially suitable for outdoor operation scenarios where power supply is inconvenient, while retaining the advantage of high-efficiency welding.
[0042] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method part.
[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A lithium battery multi-functional airless CO2 welding machine, characterized in that, Comprising: A main body (1), with a front panel (2) provided at the front end of the main body (1), and a rear panel (14) provided at the rear end of the main body (1); there is a receiving space between the bottom of the main body (1), the panel (2) and the rear panel (14), and a plurality of batteries (17) are provided in the receiving space.
2. The lithium battery multi-functional airless CO2 welding machine according to claim 1, characterized in that, A handle is provided at the top of the main body (1); a side panel (6) is rotatably connected to the side of the main body (1).
3. The lithium battery multi-functional airless CO2 welding machine according to claim 1, characterized in that, A partition (7) is provided inside the main body (1), a wire feeder (8) and a damping shaft (9) are provided on one side of the partition (7), and a main board (15), a conversion transformer (10) and a radiator (12) are provided on the other side.
4. The lithium battery multi-functional non-gas shielded MIG welder according to claim 1, wherein, A display board (13) is further provided between the main body (1) and the panel (2); a cooling fan is further provided between the main body (1) and the rear panel (14); a battery protection board (11) is further provided between the main body (1) and the battery (17); the battery (17) is detachably arranged on the battery protection board (11), and the battery protection board (11) has a BMS function to perform safety protection, performance optimization and data management on the battery.
5. The multi-functional lithium battery-powered CO2 gasless welding machine according to claim 1, characterized in that, A display screen (3), a current adjustment knob (4) and a plurality of interfaces (5) are provided on the panel (2).
6. The lithium battery multi-functional non-gas shielded flux-cored arc welding machine according to claim 5, characterized in that, The interfaces (5) include a CO2 welding gun interface, a manual arc welding interface, a grounding clamp port and a welding gun switch interface.
7. The lithium battery multi-functional airless CO2 welding machine according to claim 5, characterized in that, The display screen (3) includes a battery voltage display, a welding current setting display and a welding voltage display.
8. The lithium battery multi-functional non-gas shielded MIG welder according to claim 1, characterized in that, A cooling grid and an external power interface (16) are provided on the rear panel (14).