Inverter type carbon dioxide gas shielded welding machine

Abstract

The utility model relates to welding equipment technical field discloses an inverter carbon dioxide gas shielded arc welding machine, including welding machine host computer, the damping assembly of inlay in welding machine host computer outer wall to set up the heat abstractor in the inside of welding machine host computer, the key of heat abstractor lies in having set up the ventilation baffle, this ventilation baffle divides the inner chamber of welding machine host computer into independent heat dissipation channel and circuit area, the heat dissipation channel is linked with the louver outlet and the return character shape air inlet, forms the isolated air path. The utility model absorbs the impact and the vibration through the damping assembly outside, and through the internal isolated heat dissipation channel, carries the cooling airflow with dust and impurity and the inverter board, power board complete isolation with core circuit, solves the problem that the existing welding machine is easily damaged because of external impact, and because dust pollutes the circuit board and leads to low reliability, short life, has the beneficial effect with solid structure, dustproof reliable, high -efficient heat dissipation, long service life.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to an inverter-type carbon dioxide gas shielded welding machine. Background Technology

[0002] Inverter-type CO2 gas shielded welding machines, as a type of high-efficiency and energy-saving welding equipment, have been widely used in fields such as machinery manufacturing, shipbuilding, and automotive repair. These welding machines integrate high-frequency inverter boards, secondary rectifier boards, power supply boards, and control circuits, among other precision electronic components. These components generate a large amount of heat during operation, requiring forced air cooling for effective heat dissipation to ensure stable operation.

[0003] To achieve heat dissipation, existing welding machines typically employ an open or semi-open air duct design, where ambient air is drawn directly into the chassis via a cooling fan, flows through and heats up the electronic components, and is then expelled. However, welding machines are often used in factories, workshops, or outdoor construction sites, environments that commonly contain large amounts of conductive dust, metal particles, oil, and moisture.

[0004] The aforementioned traditional direct air-cooling structure, while dissipating heat, also creates a contamination channel. Dust and impurities in the environment enter the welding machine unimpeded by the cooling airflow and adhere extensively to the components on the circuit board and the surface of the heat sink. This accumulated dust can form conductive paths, easily causing short circuits and damaging the equipment; it can also form a heat insulation layer, severely affecting heat dissipation efficiency and causing components to overheat and fail. Furthermore, during transportation and daily use, the welding machine's casing is frequently subjected to collisions and impacts. The traditional thin-shell structure is insufficient to effectively protect the delicate internal circuit boards, resulting in a high risk of equipment damage from external forces.

[0005] Therefore, this utility model proposes an inverter-type carbon dioxide gas shielded welding machine to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems existing in the inverter-type carbon dioxide gas shielded welding machine, such as the easy damage to internal precision components caused by external impact and vibration, and the direct contamination and damage to the core circuit board by dust and impurities sucked in during heat dissipation, resulting in low equipment reliability and shortened service life, this utility model aims to provide an inverter-type carbon dioxide gas shielded welding machine with an improved structure that can effectively solve the above problems.

[0007] This utility model provides an inverter-type carbon dioxide gas shielded welding machine, including a welding machine main unit; and a shock-absorbing component attached to the outer wall of the welding machine main unit and a heat dissipation component disposed inside the welding machine main unit.

[0008] The key feature of the heat dissipation component is that it has a ventilation baffle inside, which forms a structural partition inside the welding machine host.

[0009] Furthermore, by setting up this ventilation baffle, the inner cavity of the welding machine host is divided into two mutually isolated spaces: a circuit area for accommodating the circuit board and a heat dissipation channel for guiding airflow. The heat dissipation channel serves as a dedicated airflow path, with one end connected to a U-shaped air inlet located on one side of the welding machine host and the other end connected to a louvered air outlet located on the opposite side of the welding machine host, thereby constructing a heat dissipation airflow path that runs through the chassis but is isolated from the core circuit.

[0010] Preferably, the shock-absorbing assembly includes a support frame and an iron plate fixedly connected to the top of the support frame. The support frame, as a support frame independent of the welding machine main body housing, can preferentially absorb and buffer external energy. Furthermore, a winding handle is fixedly connected to the upper surface of the iron plate. This winding handle not only serves as a carrying component, but its structural dimensions are also suitable for winding and storing the welding torch cable and power cord.

[0011] Preferably, in order to dissipate heat from the components in the circuit area, a cooling fan is fixedly connected to the top of the inner wall of the welding machine host, and the cooling fan is installed in the circuit area so that it can provide independent heat dissipation circulation for the components in the area without disturbing the airflow in the heat dissipation channel.

[0012] Preferably, the core heating electronic components of the welding machine are installed in the circuit area, specifically including an inverter board, a secondary rectifier board, and a power supply board. These precision circuit boards are protected by the ventilation baffle, thus avoiding direct contact with external dusty airflow.

[0013] Preferably, as the main object to be dissipated, the welding machine host is also equipped with a radiator, which is located in the heat dissipation channel. Its specific installation position is closer to and towards the ventilation baffle so that the airflow flowing through the heat dissipation channel can carry away its heat most effectively.

[0014] Preferably, the chassis structure of the welding machine main unit includes fixed plates that are detachably connected to both sides of the welding machine main unit via fixing screws. This detachable connection method facilitates inspection and maintenance of the welding machine's internal components. Furthermore, the two key ventilation openings, the U-shaped air inlet and the louvered air outlet, are respectively located on the fixed plates.

[0015] Preferably, to facilitate user operation and monitoring, the welding machine host is also equipped with a display screen for data display and positive and negative terminals for connecting the welding circuit.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problem in the prior art that welding machines are easily damaged by impact and vibration during handling and use, which is caused by the installation of a shock-absorbing component composed of a load-bearing frame on the outer wall of the welding machine host. It achieves the technical effect of effectively protecting core components and improving the durability and service life of the equipment.

[0017] 2. This utility model solves the problem in the prior art where external dust and liquid droplets are directly blown onto the circuit board by the heat dissipation duct, causing short circuits or poor heat dissipation and resulting in failure, by setting a ventilation baffle inside the welding machine host to divide the inner cavity into independent heat dissipation channels and circuit areas. It achieves the technical effect of effectively preventing dust while efficiently dissipating heat, and significantly improving the working stability and reliability of the welding machine.

[0018] 3. This utility model solves the problem in the prior art that welding gun cables, ground wires and other cables have nowhere to be stored, are easy to drag, are messy and inconvenient to transport, by integrating a cable winding handle on the shock absorption component. It achieves the technical effect of facilitating cable storage and organization, avoiding cable damage and improving the portability of equipment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of an inverter-type carbon dioxide gas shielded welding machine proposed in this utility model; Figure 2 This is a schematic diagram of the louvered air outlet section of an inverter-type carbon dioxide gas shielded welding machine proposed in this utility model. Figure 3 This is a schematic diagram of the ventilation baffle section of an inverter-type carbon dioxide gas shielded welding machine proposed in this utility model. Figure 4 This is a schematic diagram of the support frame structure of an inverter-type carbon dioxide gas shielded welding machine proposed in this utility model.

[0020] Legend: 1. Welding machine main unit; 2. Fixing plate; 3. Fixing wire; 4. Shock absorption assembly; 401. Support frame; 402. Winding handle; 403. Iron plate; 5. Heat dissipation assembly; 501. U-shaped air inlet; 502. Ventilation partition; 503. Cooling fan; 504. Louvered air outlet; 6. Positive and negative terminals; 7. Inverter board; 8. Secondary rectifier board; 9. Power supply board; 10. Display screen; 11. Heat sink. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Example: Please refer to Figures 1 to 4 This utility model provides an inverter-type carbon dioxide gas shielded welding machine, which aims to solve the problems in the prior art where welding machines are easily damaged by external impacts and the dust drawn in during heat dissipation can easily damage the internal circuits.

[0023] like Figure 1 As shown, the inverter-type carbon dioxide gas shielded welding machine includes a welding machine main unit 1, a shock-absorbing component 4 attached to the outer wall of the welding machine main unit 1, and a heat dissipation component 5 disposed inside the welding machine main unit 1. The specific structure of the shock-absorbing component 4 is as follows: Figure 4 As shown, it includes a support frame 401 and an iron plate 403 fixedly connected to the top of the support frame 401. A winding handle 402 is fixedly connected to the iron plate 403. The core structure of the heat dissipation component 5 is as follows: Figure 2 and Figure 3 As shown, it includes a ventilation baffle 502, which divides the inner cavity of the welding machine host 1 into a circuit area for accommodating the circuit board and a heat dissipation channel for guiding airflow. The heat dissipation channel connects a U-shaped air inlet 501 located on one side of the welding machine host 1 and a louvered air outlet 504 located on the opposite side of the welding machine host 1.

[0024] The shock absorption component 4 is an independent load-bearing frame made of steel pipes. It is attached to and fixedly connected to the outer wall of the welding machine host 1. The shock absorption component 4 includes a load-bearing frame 401 and an iron plate 403 fixedly connected to the top of the load-bearing frame 401. A winding handle 402 is also fixedly connected to the upper surface of the iron plate 403. Through the combination of the load-bearing frame 401, the iron plate 403 and the winding handle 402, a buffer and protection structure is formed on the outside of the welding machine host 1.

[0025] Based on the above embodiments, the present invention may further include the following preferred technical solutions: For a preferred internal structural layout, please refer to Figure 3 A cooling fan 503 is fixedly connected to the top of the inner wall of the welding machine host 1. The cooling fan 503 is located in the circuit area. An inverter board 7, a secondary rectifier board 8 and a power supply board 9 are also provided in the circuit area. A heat sink 11 is provided in the heat dissipation channel and the heat sink 11 faces the ventilation baffle 502.

[0026] For the preferred chassis configuration, please refer to [reference]. Figure 1 and Figure 2 The welding machine host 1 has a fixing plate 2 detachably connected to both sides by fixing wire 3. The U-shaped air inlet 501 and the louvered air outlet 504 are respectively opened on the fixing plate 2.

[0027] As a preferred configuration for the control panel, the front panel of the welding machine host 1 is also equipped with a display screen 10 and positive and negative terminals 6.

[0028] The working principle of this inverter-type carbon dioxide gas shielded welding machine is as follows: When the welding machine is subjected to external impact and vibration during transportation or use, the shock-absorbing component 4 is attached and fixed to the outer wall of the welding machine host 1. The shock-absorbing component 4 absorbs and disperses most of the impact energy through its steel pipe support frame 401, thereby protecting the welding machine host 1 and its internal core components such as inverter board 7, secondary rectifier board 8 and power supply board 9. At the same time, the cable winding handle 402 on the top of the support frame 401 provides convenience for winding cables and avoids dragging.

[0029] When the welding machine generates heat, the heat dissipation component 5 starts to operate. External cold air is drawn in through the U-shaped air inlet 501 and enters the independent heat dissipation channel defined by the ventilation baffle 502. The airflow flows through the heat sink 11, which generates a lot of heat, and carries away its heat. Then it is discharged from the louvered air outlet 504. During this process, the ventilation baffle 502 completely isolates the external airflow carrying dust from the circuit area above. At the same time, the cooling fan 503 located in the circuit area dissipates heat from the inverter board 7, the secondary rectifier board 8, and the power board 9. Because it is also blocked by the ventilation baffle 502, the cooling fan 503 will not stir up the dust in the heat dissipation channel, thus achieving safe cooling of the circuit part.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An inverter-type carbon dioxide gas shielded welding machine, comprising a welding machine main unit (1), characterized in that, It also includes a shock-absorbing component (4) attached to the outer wall of the welding machine host (1) and a heat dissipation component (5) disposed inside the welding machine host (1); the heat dissipation component (5) includes a ventilation baffle (502), which divides the inner cavity of the welding machine host (1) into a circuit area for accommodating the circuit board and a heat dissipation channel for guiding airflow; the heat dissipation channel connects a U-shaped air inlet (501) disposed on one side of the welding machine host (1) and a louvered air outlet (504) disposed on the opposite side of the welding machine host (1).

2. The inverter-type carbon dioxide gas shielded welding machine according to claim 1, characterized in that, The shock absorption assembly (4) includes a support frame (401) and an iron plate (403) fixedly connected to the top of the support frame (401).

3. The inverter-type carbon dioxide gas shielded welding machine according to claim 2, characterized in that, A winding handle (402) is fixedly connected to the iron plate (403).

4. The inverter-type carbon dioxide gas shielded welding machine according to claim 1, characterized in that, A cooling fan (503) is fixedly connected to the top of the inner wall of the welding machine host (1), and the cooling fan (503) is located in the circuit area.

5. The inverter-type carbon dioxide gas shielded welding machine according to claim 1, characterized in that, The circuit area is equipped with an inverter board (7), a secondary rectifier board (8), and a power supply board (9).

6. The inverter-type carbon dioxide gas shielded welding machine according to claim 1, characterized in that, The welding machine host (1) is also equipped with a radiator (11), which is located in the heat dissipation channel and faces the ventilation partition (502).

7. The inverter-type carbon dioxide gas shielded welding machine according to claim 1, characterized in that, The welding machine host (1) has fixing plates (2) detachably connected to both sides by fixing wires (3).

8. The inverter-type carbon dioxide gas shielded welding machine according to claim 7, characterized in that, The U-shaped air inlet (501) and the louvered air outlet (504) are respectively opened on the fixed plate (2).

9. The inverter-type carbon dioxide gas shielded welding machine according to claim 1, characterized in that, The welding machine host (1) is also equipped with a display screen (10) and positive and negative terminals (6).

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