JP3933192B2 - Welding equipment - Google Patents

Description

【Technical field】
[0001]
The present invention relates to a welding apparatus for performing welding.
[Background]
[0002]
An example of a conventional welding apparatus will be described. Japanese Patent Application Laid-Open No. 8-214549 discloses a welding apparatus in which a cooling fan for cooling a main circuit including a semiconductor element and the like in the apparatus is attached to a side plate constituting a casing. Japanese Utility Model Publication No. Sho 61-53074 discloses a welding apparatus in which a cooling fan is attached to a partition plate that separates the inside of the housing into a plurality of regions.
[0003]
FIG. 5 shows an example in which a cooling fan is attached to a side plate constituting the casing, and FIG. 6 shows an example in which a cooling fan is attached to a partition plate provided in the casing.
[0004]
The welding apparatus shown in FIG. 5 includes a rectifier circuit 1, an inverter circuit 2, a transformer 3, a cooling fan 5, a printed board 6, and a first partition plate 7.
[0005]
On the other hand, the welding apparatus shown in FIG. 6 includes a transformer 3, a reactor 4, a cooling fan 5, a printed circuit board 6, a first partition plate 17, and a second partition plate 18.
[0006]
When the cooling fan 5 is attached to the side plate constituting the housing as in the conventional welding apparatus shown in FIG. 5, the cooling fan 5 is integrated with the cooling fin due to the nature of the cooling structure. Therefore, in order to remove the cooling fan 5, not only the side plate at a position orthogonal to the side plate to which the cooling fan 5 is attached, but also the cooling fins or the side plate to which the cooling fan 5 is attached must be removed. Accordingly, there is a problem that it is difficult to replace the cooling fan 5 or the like due to a failure or the like.
[0007]
In the conventional welding apparatus shown in FIG. 6, the cooling fan 5 is attached to a partition plate 18 provided in the housing. In this case, in order to remove the cooling fan 5, not only the side plate but also at least the partition plate 18 must be removed. Also in this case, there is a problem that it is difficult to replace the cooling fan 5 or the like due to a failure or the like.
DISCLOSURE OF THE INVENTION
[0008]
The welding apparatus of the present invention includes a housing having a removable side plate, a partition member that divides the housing into a plurality of regions, a cooling fan unit housed in the housing, and a cooling fan unit housed in the housing. A heat dissipating unit adjacent to. The heat radiating unit has a tunnel shape opened in the air blowing direction of the cooling fan. The heat dissipation unit is a fastening portion provided on a side surface, and is attached to the partition plate by a fastening member. It is a welding apparatus of the structure which can remove a thermal radiation unit from a welding machine by removing a side plate and also removing a fastening member.
[0009]
As described above, according to the present invention, the cooling fan or the like can be easily removed, and repair and maintenance can be improved.
【The invention's effect】
[0010]
According to the present invention, a cooling fan or the like can be easily removed, and repair and maintenance are improved. Therefore, the present invention is industrially useful in the field of electrical equipment having a cooling fan for cooling a member in the equipment. .
BEST MODE FOR CARRYING OUT THE INVENTION
[0011]
(Embodiment)
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is a schematic configuration diagram of a welding apparatus according to the present embodiment. FIG. 2 is a schematic configuration diagram showing a part of the welding apparatus of the present embodiment. FIG. 3 is a schematic perspective view showing a part of the welding apparatus of the present embodiment.
[0012]
The welding apparatus 100 has a housing 30, and the housing 30 has four side plates 31 that can be removed around. FIG. 1 shows a state in which the side plate 31 on the front side of the sheet of the four side plates 31 is removed. The interior of the housing 30 is divided into three regions by the first partition plate 7 and the second partition plate 8. The printed circuit board 6 is disposed in the region above the first partition plate 7. Electric parts such as the transformer 3 and the reactor 4 are arranged in a region below the second partition plate 8. Further, a heat dissipation unit 10 is disposed in a region below the first partition plate 7 and above the second partition plate 8.
[0013]
As shown in FIG. 4A, the heat radiating unit 10 includes heat radiating fins 12 and the like, and has a tunnel shape. Here, the tunnel shape means that the heat dissipation unit 10 has the first opening 32 on the first partition plate 7 side (first side surface) and the second partition plate 8 side (second side surface). The second opening 33 has a shape. That is, for example, it is a shape in which an air passage that allows the wind from the cooling fan unit 9 to pass therethrough is formed in the vertical direction. In addition, a semiconductor element such as a rectifier circuit 1 and an inverter circuit 2 for controlling the welding output is attached to the heat dissipation unit 10. Further, the cooling fan unit 9 is attached to the first opening 32 of the heat dissipation unit 10. Here, the 1st partition plate 7 and the 2nd partition plate 8 are demonstrated as an example of a partition member.
[0014]
The cooling fan unit 9 includes two cooling fans 5 and box-shaped parts for fixing these cooling fans 5. The cooling fan unit 9 dissipates heat from the rectifier circuit 1 and the inverter circuit 2 by circulating air through the heat radiating unit 10 through the upper and lower openings 32 and 33 and blows air to the transformer 3 and the reactor 4. To cool them. In addition, a predetermined space 13 is provided between the cooling fan unit 9 and the first partition plate 7 for the cooling fan 5 to take in air. This space 13 is a region surrounded by a solid line in FIG.
[0015]
As shown in FIG. 2, the heat radiating unit 10 has a third fastening portion 21 for fastening the heat radiating unit 10 to the cooling fan unit 9 on the first side surface on the upper side in FIG. 2. The heat radiating unit 10 further includes a first fastening portion 22 for fastening the heat radiating unit 10 to the second partition plate 8 on the second side surface on the lower side of FIG. The cooling fan unit 9 also includes a fourth fastening portion 23 for fastening the cooling fan unit 9 to the heat dissipation unit 10. The second partition plate 8 includes a second fastening portion 24 for fastening with the heat dissipation unit 10.
[0016]
As shown in FIG. 4B, the second partition plate 8 is provided with a through hole 34 for applying the wind from the cooling fan unit 9 to the transformer 3 and the like. In order to form the through hole 34, a portion corresponding to the through hole 34 of the second partition plate 8 is cut off. At this time, a part of the part corresponding to the through hole 34 may be left, and the second fastening part 24 may be formed by bending the left part in the vertical direction with respect to the second partition plate 8.
[0017]
Next, specific examples of each fastening portion will be shown.
[0018]
The third fastening portion 21 and the first fastening portion 22 of the heat dissipation unit 10 are provided with a plurality of screw holes. Further, the fourth fastening portion 23 of the cooling fan unit 9 is provided with a round hole at a position corresponding to the plurality of screw holes provided in the third fastening portion 21 of the heat dissipation unit 10. The second fastening portion 24 of the second partition plate 8 is provided with a round hole at a position corresponding to the plurality of screw holes provided in the first fastening portion 22 of the heat dissipation unit 10.
[0019]
Then, by fixing the round hole provided in the second fastening portion 24 and the screw hole provided in the first fastening portion 22 using a screw (not shown), the heat dissipation unit 10 is provided with the second partition. Fastened to the plate 8. Further, by fixing the round hole provided in the fourth fastening part 23 and the screw hole provided in the third fastening part 21 with a screw (not shown), the cooling fan unit 9 becomes the heat radiating unit 10. To be concluded. In the present embodiment, screws (screw nails) are used as an example of a fastening member, but other easily removable members such as bolts and nuts can also be used as fastening members.
[0020]
The above-described screw is fastened from the vertical direction to the second fastening portion 24 having a round hole. Accordingly, in FIG. 1, the fastening is performed by tightening from the near side to the far side of the sheet.
[0021]
A method of removing the cooling fan unit 9 and the heat radiating unit 10 in the welding apparatus configured as described above will be described.
[0022]
For example, when it becomes necessary to remove the cooling fan unit 9 from the welding apparatus due to a failure of the cooling fan 5 or the like, first, the side plate 31 located in a substantially orthogonal direction of the screw (the front side of the paper surface in FIG. 1) is removed. Next, all the screws that fasten the cooling fan unit 9 and the heat dissipation unit 10 are removed. Then, the cooling fan unit 9 can be removed by sliding the cooling fan unit 9 upward using the space 13.
[0023]
As described above, according to the present embodiment, it is possible to easily remove the cooling fan unit 9 simply by removing the one side plate 31 constituting the housing and removing the screws that fasten the cooling fan unit 9 and the heat dissipation unit 10. Can be removed outside the welding apparatus. Usually, the cooling fan unit 9 and the heat radiating unit 10 can be fixed by being fastened on one side, but if they are fastened with screws other than the part facing the front side plate, the corresponding side plate is further applied. And then remove the screw at that point.
[0024]
When the heat radiating unit 10 is further removed after the cooling fan unit 9 is removed, the heat radiating unit 10 can be easily welded simply by removing the screws that fasten the heat radiating unit 10 and the second partition plate 8. It can be removed outside the apparatus.
[0025]
Further, in a state where the cooling fan unit 9 and the heat radiating unit 10 are fastened, it is possible to easily remove the cooling fan unit 9 and the heat radiating unit 10 simply by removing the screws that fasten the heat radiating unit 10 and the second partition plate 8. Can be removed outside the welding apparatus.
[0026]
Next, the case where the heat radiating unit 10 and the cooling fan unit 9 are installed in the welding apparatus will be described.
[0027]
First, the side plate 31 located in a direction substantially orthogonal to the screw tightening direction (in FIG. 1, the front side of the sheet) is removed. Next, by fixing the round hole provided in the second fastening portion 24 and the screw hole provided in the first fastening portion 22 using a screw (not shown), the heat radiation unit 10 is Fastened to the partition plate 8. Thereafter, the cooling fan unit 9 is fixed to the heat radiating unit 10 by fixing the round hole provided in the fourth fastening part 23 and the screw hole provided in the third fastening part 21 with screws (not shown). To conclude.
[0028]
In FIG. 3, the direction in which the screw is tightened when the heat radiation unit 10 or the cooling fan unit 9 is fastened is indicated by an arrow.
[0029]
As described above, according to the present embodiment, the heat radiating unit 10 and the cooling fan unit can be easily obtained simply by removing one side plate 31 constituting the housing and fastening the heat radiating unit 10 and the cooling fan unit 9 with screws. 9 can be attached to the welding apparatus. Normally, the cooling fan unit 9 and the heat radiating unit 10 can be fixed by fastening on one side. However, if fastening with screws other than the part facing the front side plate, further remove the corresponding side plate and You can conclude with.
[0030]
In the welding apparatus 100 of the present embodiment, the cooling fan unit 9 is attached to the heat dissipation unit 10 by blowing air into the heat dissipation unit 10 through the first opening 32 provided above the heat dissipation unit 10. The rectifier circuit 1 and the inverter circuit 2 are radiated. At the same time, the wind blown from the opening 33 provided in the lower part of the heat radiating unit 10 directly hits the transformer 3 and the reactor 4 through the through hole 34 provided in the second partition plate 8. Thereby, cooling of the member in a welding apparatus can be performed efficiently.
[0031]
That is, the heat radiating unit 10 is formed in a tunnel shape, and the through holes 34 are provided in the second partition plate 8, so that an air passage from the cooling fan unit 9 is formed and the transformer 3 and the reactor 4 can be cooled. This air passage is configured to include a tunnel-shaped heat radiation unit 10 provided with openings 32 and 33 at both ends and a through hole 34 provided in the second partition plate 8.
[0032]
In addition, when each fastening part provided in the 2nd partition plate 8, the cooling fan unit 9, and the heat radiating unit 10 is provided facing the two side plates 31 of the housing | casing which mutually opposes, each side plate 31 is removed, and each unit is attached to the welding device by tightening with a screw in the vertical direction with respect to the surface from which each side plate 31 is removed, and each screw is loosened and removed in the vertical direction with respect to the surface from which each side plate 31 is removed. Thus, each unit may be removed from the welding apparatus.
[Industrial applicability]
[0033]
According to the present invention, a cooling fan or the like can be easily removed, and repair and maintenance are improved. Therefore, the present invention is industrially useful in the field of electrical equipment having a cooling fan for cooling a member in the equipment. .
[Brief description of the drawings]
[0034]
FIG. 1 is a diagram showing a schematic configuration of a welding apparatus according to an embodiment of the present invention. FIG. 2 is a diagram showing a schematic configuration of a part of the welding apparatus according to an embodiment of the present invention. The figure which shows the one part outline | summary structure of the welding apparatus which concerns on one Embodiment. FIG. 4A is a perspective view of the external appearance of the heat radiating unit which concerns on one Embodiment of this invention. FIG. 4B of the partition plate which concerns on one Embodiment of this invention FIG. 5 is a diagram showing a schematic configuration of a conventional welding apparatus. FIG. 6 is a diagram showing a schematic configuration of a conventional welding apparatus.
[0035]
DESCRIPTION OF SYMBOLS 1 Rectification circuit 2 Inverter circuit 3 Transformer 4 Reactor 5 Cooling fan 6 Printed circuit board 7 1st partition plate 8 Second partition plate 9 Cooling fan unit 10 Heat radiation unit 12 Radiation fin 13 Space 17 First partition plate 18 Second partition Partition plate 21 Third fastening portion 22 First fastening portion 23 Fourth fastening portion 24 Second fastening portion 30 Housing 31 Side plate 32 First opening portion 33 Second opening portion 34 Through hole 100 Welding device

Claims (9)

A housing having a removable side plate;
One or more partition members that divide the housing into a plurality of regions;
A cooling fan unit housed in the housing;
A tunnel-shaped heat radiation unit housed in the housing and adjacent to the cooling fan unit;
The heat dissipation unit has a first opening on a first side facing the blowing direction of the cooling fan, and has a second opening on a second side facing the first side.
The second side surface has a first fastening portion around the second opening,
Among the partition members, the partition plate facing the second side surface has a second fastening portion at a position corresponding to the first fastening portion,
Furthermore, it has a fastening member that fastens the first fastening part and the second fastening part,
The fastening member is provided on a surface facing the side plate and is removable.
Welding equipment. The partition plate facing the second side surface has a through hole at a position corresponding to the second opening, and the second fastening portion is provided in at least a part of the periphery of the through hole. And the welding apparatus of Claim 1 formed by bending a part of said partition plate to a perpendicular direction. The heat dissipation unit has a third fastening portion on the first side surface,
The cooling fan unit has a fourth fastening portion at a position corresponding to the third fastening portion,
Furthermore, the fastening member for fastening the third fastening portion and the fourth fastening portion,
The fastening member is provided on a surface facing the side plate and is removable.
The welding apparatus according to claim 1. The welding apparatus according to claim 1, wherein the fastening member is a screw. Furthermore, a semiconductor element that is disposed on the outer peripheral portion of the heat radiating unit and controls the welding output;
Having electrical components arranged in the direction of blowing air from the second opening,
The welding apparatus according to claim 1. An air blowing path for air blown from the cooling fan unit;
The air passage is
The heat dissipation unit in the tunnel shape;
A through hole provided in the partition plate facing the second side surface;
The welding apparatus according to claim 1, comprising: The welding apparatus according to claim 3, wherein the first fastening part, the second fastening part, the third fastening part, and the fourth fastening part are formed in a direction parallel to the side plate. The welding apparatus according to claim 1, wherein the heat radiating unit can be removed from the partition member facing the second side surface by removing the fastening members of the first fastening portion and the second fastening portion. The welding apparatus according to claim 3, wherein the cooling fan unit is removable from the heat radiating unit by removing fastening members of the third fastening portion and the fourth fastening portion.

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