Heat dissipation air duct structure and inverter submerged arc welding machine thereof

Abstract

The utility model relates to the technical field of welding machines, and discloses a heat dissipation air duct structure and an inverter submerged arc welding machine comprising the heat dissipation air duct structure. The filtering structure comprises a filtering part, a limiting rod, an inserting channel and a limiting column, the limiting rod is elastically connected with the first mounting base, the limiting column is fixedly connected with the limiting rod, the inserting channel is formed in the wall face of the filtering part, the limiting column is inserted into the inserting channel, and the filtering part can turn over and slide along the limiting column; an inserting channel of a filtering part is aligned with a limiting column and inserted, the filtering part is inserted between two limiting rods distributed in parallel, the limiting rods are close to a first mounting base and reset through elastic connection of the limiting rods and the filtering part, the filtering part can be dismounted or mounted by rotating the limiting rods, and later dismounting, mounting and maintenance are facilitated; in addition, the limiting rod can be turned over, the filtering piece is pulled to the direction away from the limiting rod and then rotated, and reverse blowing cleaning of the filtering piece is achieved by changing the face of the filtering piece.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to a heat dissipation duct structure and an inverter submerged arc welding machine thereof. Background Art

[0002] Submerged arc welding (SAW) is a welding process in which an electric arc burns beneath a layer of flux. During the welding process, a layer of granular flux covers the workpiece being welded. A continuously advancing welding wire creates an arc between the workpiece and the flux beneath the flux layer. The heat from the arc melts the wire, workpiece, and flux, forming a molten metal pool.

[0003] Publication number CN209477502U discloses an existing technology called a horizontal inverter submerged arc welding machine, which includes a heat dissipation duct surrounded by a welding machine case, the heat dissipation duct is arranged horizontally, and two groups of transformers and reactors are arranged inside the heat dissipation duct; the side wall of the welding machine case is provided with an air inlet for introducing external cold air into the heat dissipation duct, and the side wall of the welding machine case is also provided with an air outlet for leading internal hot air carrying heat dissipated by the transformer and the reactor out of the heat dissipation duct, and the air inlet and the air outlet are located at opposite ends of the heat dissipation duct.

[0004] The existing technology mainly forms an air duct between the fan and the air inlet to dissipate heat and cool down the electronic components installed in the air duct. In order to reduce dust in the intake air, a filter is set to filter the intake air. When the welding machine is working at high load, the heat generated is large, and the cooling fan is continuously working, so the amount of air passing through the filter is large and dust is easily accumulated. In the existing technology, the filter is mostly fixed with bolts, and frequent cleaning requires repeated disassembly and assembly, which causes inconvenience in maintenance and has certain room for optimization.

[0005] To this end, we propose a heat dissipation duct structure and an inverter submerged arc welding machine thereof. Utility Model Content

[0006] The utility model mainly solves the technical problem that the filter screen is inconvenient to disassemble and maintain in the later stage, and provides a heat dissipation duct structure and an inverter submerged arc welding machine thereof.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions, a heat dissipation duct structure and an inverter submerged arc welding machine thereof, comprising:

[0008] A first mounting seat and a second mounting seat, an air duct is formed between the first mounting seat and the second mounting seat, a cooling fan is installed on the wall surface of the second mounting seat, and a through hole is opened on the wall surface of the first mounting seat;

[0009] The filtering structure is arranged in the through hole of the first mounting seat and is used to filter the air entering the air duct. The filtering structure includes a filter element, a limiting rod, a plug-in channel and a limiting column. The limiting rod is elastically connected to the first mounting seat, and the limiting column is fixedly connected to the limiting rod. The plug-in channel is opened on the wall surface of the filter element, and the limiting column is inserted into the plug-in channel. The filter element can flip and slide along the limiting column.

[0010] As a preferred embodiment of the present invention, the filtering structure further includes a rotating shaft, the top surface of the limiting rod is fixedly mounted with the rotating shaft, the rotating shaft is rotatably connected to the first mounting seat, the wall surface of the rotating shaft is fixedly mounted with a torsion spring, and the torsion spring is fixedly connected to the first mounting seat.

[0011] As a preferred embodiment of the present invention, the plug-in channel forms a rectangular notch, the limiting column is cylindrical, the diameter of the limiting column is smaller than the width of the plug-in channel, and the limiting column is located near the center of the bottom of the limiting rod.

[0012] As a preferred embodiment of the present invention, an air inlet and a receiving groove are provided in the through hole of the first mounting seat, the filter element is installed in the air inlet, and the limiting rod can be flipped and received in the receiving groove.

[0013] As a preferred embodiment of the present invention, the air inlet is a rectangular notch, and the filter element and the air inlet are used in conjunction with each other.

[0014] As a preferred embodiment of the present invention, the storage groove is a rectangular groove, the limiting rod is adapted to the storage groove, the length of the limiting rod is smaller than the length of the storage groove, two storage grooves are symmetrically arranged on the inner wall of the first mounting seat, and the same limiting rod is arranged in each storage groove, and the two limiting rods respectively limit the top and bottom of the filter element.

[0015] An inverter submerged arc welding machine includes a casing. Windows for heat dissipation are provided on both sides of the casing. All the above-mentioned heat dissipation duct structures are provided in the heat dissipation windows. The first mounting seat and the second mounting seat are respectively fixed in the two heat dissipation windows by bolts.

[0016] Beneficial effects

[0017] The utility model provides a heat dissipation duct structure and an inverter submerged arc welding machine thereof, which has the following beneficial effects:

[0018] The filter element is rotated around the limit post and turned over, so that the filter element can be replaced with a side position facing the first mounting seat, and the filter element can be back-blown by changing the filter surface.

[0019] 2. This heat dissipation duct structure and its inverter submerged arc welding machine, by setting a rotating shaft, the torsion spring gives the rotating shaft a torsion force so that the rotating shaft can drive the limit rod to flip toward the first mounting seat, and then the limit rod can press the filter element against the inner wall of the first mounting seat, ensuring that the filter element is tightly fitted with the first mounting seat and improving the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the overall three-dimensional diagrams of the utility model;

[0021] Figure 2 This is the second overall stereogram of the utility model;

[0022] Figure 3 This is a three-dimensional diagram of the first mounting base of the utility model;

[0023] Figure 4 This is a schematic diagram of the installation of the filter element and the limit rod of the utility model;

[0024] Figure 5 This is a three-dimensional diagram of the filter element of the utility model;

[0025] Figure 6 It is a three-dimensional diagram of the limit rod.

[0026] Legend: 10. First mounting seat; 11. Second mounting seat; 12. Storage slot; 13. Air inlet; 20. Filter element; 21. Limit rod; 22. Insertion channel; 23. Limit column; 24. Rotating shaft. DETAILED DESCRIPTION

[0027] A heat dissipation duct structure and inverter submerged arc welding machine thereof, such as Figure 1 and Figure 2 Shown, including:

[0028] A first mounting seat 10 and a second mounting seat 11 are provided, with an air duct formed between the first mounting seat 10 and the second mounting seat 11. A cooling fan is installed on the wall of the second mounting seat 11. A through hole is provided on the wall of the first mounting seat 10. Specifically, the first mounting seat 10 and the second mounting seat 11 are both rectangular plate structures, and through holes for mounting bolts are provided at the four corners of the first mounting seat 10 and the second mounting seat 11.

[0029] like Figure 2 、 Figure 4 、 Figure 5 and Figure 6 As shown, the filtering structure is arranged in the through hole of the first mounting seat 10 for filtering the air entering the air duct. The filtering structure includes a filter element 20, a limiting rod 21, a plug-in channel 22 and a limiting column 23. The limiting rod 21 is elastically connected to the first mounting seat 10, and the limiting column 23 is fixedly connected to the limiting rod 21. The wall surface of the filter element 20 is provided with a plug-in channel 22, and the limiting column 23 is inserted into the plug-in channel 22. The filter element 20 can flip and slide along the limiting column 23. The plug-in channel 22 forms a rectangular notch, and the limiting column 23 is cylindrical. The limiting column 23 The diameter of the filter element 20 is smaller than the width of the insertion channel 22, and the limiting post 23 is located near the center of the bottom of the limiting rod 21. In this solution, by setting the filter element 20 and the limiting rod 21, the filter element 20 includes a rectangular frame and a metal filter fixedly installed in the rectangular frame. By aligning the insertion channel 22 of the filter element 20 with the limiting post 23 and inserting it, the filter element 20 is inserted between the two parallel limiting rods 21. The limiting rod 21 is elastically connected to the filter element 20 so that the limiting rod 21 is close to the first mounting seat 10 and reset, and then the limiting rod 21 will filter The filter element 20 is pressed tightly in the through hole of the first mounting seat 10, and the filter element 20 is used to filter the air. The filter element 20 can be removed or installed by rotating the limit rod 21, which is convenient for later disassembly and maintenance. At the same time, the limit rod 21 can be turned over, the filter element 20 is pulled to a direction away from the limit rod 21, and then the filter element 20 is rotated. The filter element 20 rotates around the limit column 23 and turns over, so that the position of the filter element 20 facing the first mounting seat 10 can be replaced. By changing the surface of the filter element 20, the backwash cleaning of the filter element 20 can be achieved. For example, the filter The left side of the filter element 20 is the first filter surface, and the right side of the filter element 20 is the second filter surface. The cooling fan blows air while sucking air. The air enters from the right side of the filter element 20, so the second filter surface of the filter element 20 contacts the air first, and the dust also adheres to the second filter surface. After the filter element 20 is replaced, the second filter surface of the filter element 20 faces the wind direction close to the second mounting seat 11, so the flowing air can back-blow and clean the filter element 20. According to needs, you can choose to remove the filter element 20 for cleaning or directly flip it over for self-backblowing and cleaning, which is more flexible to use.

[0030] like Figure 6As shown, the filtering structure also includes a rotating shaft 24, and the rotating shaft 24 is fixedly installed on the top surface of the limiting rod 21. The rotating shaft 24 is rotatably connected to the first mounting seat 10. The wall surface of the rotating shaft 24 is fixedly installed with a torsion spring, and the torsion spring is fixedly connected to the first mounting seat 10. By setting the rotating shaft 24, the torsion spring gives the rotating shaft 24 a torsion force so that the rotating shaft 24 can drive the limiting rod 21 to flip toward the first mounting seat 10, and then the limiting rod 21 can press the filter element 20 against the inner wall of the first mounting seat 10, thereby ensuring that the filter element 20 is closely fitted with the first mounting seat 10 and improving the filtering effect.

[0031] like Figure 3 As shown, an air inlet 13 and a receiving groove 12 are opened in the through hole of the first mounting seat 10, the filter 20 is installed in the air inlet 13, the limiting rod 21 can be flipped and received in the receiving groove 12, the air inlet 13 is a rectangular notch, the filter 20 and the air inlet 13 cooperate with each other, the receiving groove 12 is a rectangular groove, the limiting rod 21 is adapted to the receiving groove 12, the length of the limiting rod 21 is less than the length of the receiving groove 12, and two receiving grooves 13 are symmetrically arranged on the inner wall of the first mounting seat 10 2. The same limiting rod 21 is provided in each receiving groove 12. The two limiting rods 21 limit the top and bottom of the filter element 20 respectively. As a supplement to the above scheme, by providing the receiving groove 12 and the air inlet 13, and by limiting the filter element 20 with the air inlet 13, the limiting rod 21 is stored in the receiving groove 12, so that the filter element 20 and the limiting rod 21 can remain flush with the first mounting seat 10 after being reset, ensuring aesthetics while meeting the requirements of easy disassembly and assembly.

[0032] Not shown in the figure, an inverter submerged arc welding machine includes a casing, and windows for heat dissipation are opened on both sides of the casing. All the above-mentioned heat dissipation duct structures are provided in the heat dissipation windows. The first mounting seat 10 and the second mounting seat 11 are respectively fixed in the two heat dissipation windows by bolts. The cold air is filtered through the filter element 20 and enters the air duct and is then discharged through the fan to achieve air-cooled heat dissipation. Components such as a transformer and a reactor are installed in the casing. The specific control method and connection method are well-known existing technologies and will not be elaborated here. Please refer to the existing technology named horizontal inverter submerged arc welding machine disclosed in publication number: CN209477502U.

[0033] The working principle of the present invention is as follows: cold air is filtered through the filter element 20 and enters the air duct and is then discharged through the fan to achieve air cooling and heat dissipation. The filter element 20 includes a rectangular frame and a metal filter fixedly installed in the rectangular frame. By aligning the plug-in channel 22 of the filter element 20 with the limit column 23 and inserting it, the filter element 20 is inserted between two parallel limit rods 21. The limit rod 21 is elastically connected to the filter element 20 so that the limit rod 21 is close to the first mounting seat 10 and reset, and then the limit rod 21 presses the filter element 20 into the through hole of the first mounting seat 10. The filter element 20 is used to filter the air and can be removed or installed by rotating the limit rod 21. The filter element 20 can also flip the limit rod 21, pull the filter element 20 to a direction away from the limit rod 21 and then rotate the filter element 20. The filter element 20 rotates and flips around the limit column 23, and then the position of the filter element 20 facing the first mounting seat 10 can be replaced. By changing the surface of the filter element 20, the filter element 20 can be backwashed and cleaned. The torsion spring gives the rotating shaft 24 a torque so that the rotating shaft 24 can drive the limit rod 21 to flip toward the first mounting seat 10, and then the limit rod 21 can press the filter element 20 against the inner wall of the first mounting seat 10, ensuring that the filter element 20 is tightly fitted with the first mounting seat 10 and ensuring the filtering effect on the air.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation duct structure, characterized in that: include: A first mounting seat (10) and a second mounting seat (11), an air duct is formed between the first mounting seat (10) and the second mounting seat (11), a cooling fan is installed on the wall surface of the second mounting seat (11), and a through hole is opened on the wall surface of the first mounting seat (10); A filter structure is provided in a through hole of a first mounting seat (10) for filtering air entering an air duct, the filter structure comprising a filter element (20), a limiting rod (21), a plug-in channel (22) and a limiting column (23), the limiting rod (21) being elastically connected to the first mounting seat (10), the limiting column (23) being fixedly connected to the limiting rod (21), the plug-in channel (22) being provided on a wall surface of the filter element (20), the limiting column (23) being inserted into the plug-in channel (22), and the filter element (20) being capable of flipping and sliding along the limiting column (23).

2. The heat dissipation duct structure according to claim 1, characterized in that: The filtering structure further comprises a rotating shaft (24), the top surface of the limiting rod (21) is fixedly mounted with the rotating shaft (24), the rotating shaft (24) is rotatably connected to the first mounting seat (10), a torsion spring is fixedly mounted on the wall surface of the rotating shaft (24), and the torsion spring is fixedly connected to the first mounting seat (10).

3. The heat dissipation duct structure according to claim 1, wherein: The insertion channel (22) forms a rectangular notch, the limiting column (23) is cylindrical, the diameter of the limiting column (23) is smaller than the width of the insertion channel (22), and the limiting column (23) is located at the bottom of the limiting rod (21) near the center.

4. The heat dissipation duct structure according to claim 1, wherein: An air inlet (13) and a receiving groove (12) are provided in the through hole of the first mounting seat (10); the filter element (20) is installed in the air inlet (13); and the limiting rod (21) can be flipped and received in the receiving groove (12).

5. The heat dissipation duct structure according to claim 4, characterized in that: The air inlet (13) is a rectangular notch, and the filter element (20) and the air inlet (13) are used in conjunction with each other.

6. The heat dissipation duct structure according to claim 4, characterized in that: The receiving groove (12) is a rectangular groove, the limiting rod (21) is adapted to the receiving groove (12), the length of the limiting rod (21) is less than the length of the receiving groove (12), two receiving grooves (12) are symmetrically arranged on the inner wall of the first mounting seat (10), and the same limiting rod (21) is arranged in each receiving groove (12), and the two limiting rods (21) respectively limit the top and bottom of the filter element (20).

7. An inverter submerged arc welding machine, comprising a housing, with windows for heat dissipation provided on both sides of the housing, characterized in that: The heat dissipation window is provided with a heat dissipation duct structure according to any one of claims 1 to 6, and the first mounting seat (10) and the second mounting seat (11) are respectively fixed in the two heat dissipation windows by bolts.

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