WO2007043195A9

WO2007043195A9 - Welding device

Info

Publication number: WO2007043195A9
Application number: PCT/JP2006/300469
Authority: WO
Inventors: Naoki Kobayashi; Yoshiyuki Tabata; Shinsuke Shimabayashi; Motoyasu Nagano
Original assignee: Matsushita Electric Ind Co Ltd; Naoki Kobayashi; Yoshiyuki Tabata; Shinsuke Shimabayashi; Motoyasu Nagano
Priority date: 2005-10-11
Filing date: 2006-01-17
Publication date: 2007-06-14
Also published as: JPWO2007043195A1; CN100506456C; WO2007043195A1; CN101043967A; JP3933192B2

Abstract

Disclosed is a welding device comprising a casing having a removable side panel, a partition member for dividing the inner space of the casing into a plurality of regions, a cooling fan unit placed in the casing, and a heat dissipating unit arranged next to the cooling fan unit in the casing. The heat dissipating unit has a tunnel shape opened to the blowing direction of the wind of the cooling fan. The heat dissipating unit is fitted to the partition member with a joint member in a joint portion provided on the lateral surface thereof. By removing the side panel and the joint member, the heat dissipating unit can be removed from the welding device.

Description

Specification

Welding equipment

Technical field

[0001] The present invention relates to a welding apparatus for performing welding.

Background art

A conventional welding apparatus will be described with an example. Japanese Patent Publication No. Hei 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 the casing. Japanese Utility Model Publication No. 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.

The welding apparatus shown in FIG. 5 has a rectifier circuit 1, an inverter circuit 2, a transformer 3, a cooling fan 5, a print substrate 6, and a first partition plate 7.

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 casing 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. It has become. Therefore, in order to remove the cooling fan 5, it is necessary to remove the cooling fins only by the side plate at a position orthogonal to the side plate to which the cooling fan 5 is attached, or to remove the side plate to which the cooling fan 5 is attached. Therefore, there is a problem that it is difficult to replace the cooling fan 5 or the like due to a failure.

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, at least the partition plate 18 must be removed as well as the side plate. In this case as well, the cooling fan 5 etc. due to a failure was exchanged.

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 inside of the housing into a plurality of regions, a cooling fan unit that is housed in the housing, and a housing that is housed in the housing. And a heat dissipating unit adjacent to the cooling fan unit. The heat dissipating unit has a tunnel shape opened in the air blowing direction of the cooling fan. The heat radiating unit is a fastening portion provided on the side surface and is attached to the partition plate by a fastening member. It is a welding apparatus having a configuration in which the heat radiating unit can be removed from the welding machine by removing the side plate and further removing the fastening member.

[0009] As described above, according to the present invention, it is possible to easily remove a cooling fan or the like, and it is possible to improve repair and maintainability.

Brief Description of Drawings

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 a welding apparatus according to an embodiment of the present invention.

FIG. 3 is a diagram showing a schematic configuration of a part of a welding apparatus according to an embodiment of the present invention.

FIG. 4A is a perspective view of the appearance of a heat dissipation unit according to one embodiment of the present invention.

FIG. 4B is a perspective view of the appearance of the partition plate according to one embodiment of the present 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.

Explanation of symbols

1 Rectifier circuit

2 Inverter circuit

3 transformer

4 reactors

5 Cooling fan

6 Printed circuit board

7 First divider

8 Second divider

9 Cooling fan unit 10 Heat dissipation unit

12 Radiation fin

13 space

17 First divider

18 Second divider

21 Third fastener

22 First fastening part

23 Fourth fastening part

24 Second fastening part

30 enclosure

31 Side plate

32 First opening

33 Second opening

34 Through hole

100 welding equipment

BEST MODE FOR CARRYING OUT THE INVENTION

[0012] (Embodiment)

Hereinafter, embodiments of the present invention will be described with reference to FIGS. FIG. 1 is a schematic configuration diagram of the welding apparatus of 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.

[0013] The welding apparatus 100 includes a housing 30, and the housing 30 includes four removable side plates 31 around the periphery. 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 a first partition plate 7 and a second partition plate 8. A print substrate 6 is arranged in an area above the first partition plate 7. Electric parts such as a transformer 3 and a reactor 4 are arranged in a region below the second partition plate 8. Further, the heat radiating unit 10 is arranged in a region below the first partition plate 7 and above the second partition plate 8. [0014] As shown in FIG. 4A, the heat dissipating unit 10 includes heat dissipating 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 blowing path through which wind from the cooling fan unit 9 can pass 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 radiating unit 10. Further, a cooling fan unit 9 is attached to the first opening 32 of the heat dissipation unit 10. Here, the first partition plate 7 and the second partition plate 8 will be described as an example of a partition member.

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 flowing air through the upper and lower openings 32 and 33 and into the heat radiating unit 10, and also to the transformer 3 and the reactor 4. These are cooled by blowing wind. 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 an area surrounded by a solid line in FIG.

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 of FIG. Have. 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. In addition, the cooling fan unit 9 includes a fourth fastening portion 23 for fastening the cooling fan unit 9 to the heat dissipation unit 10. Further, the second partition plate 8 includes a second fastening portion 24 for fastening with the heat radiating unit 10.

[0017] As shown in FIG. 4B, the second partition plate 8 receives wind from the cooling fan unit 9 as a transformer.

A through hole 34 is provided to apply to 3 etc. 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, the second fastening portion 24 may be formed by leaving a part of the portion corresponding to the through hole 34 and bending the remaining portion with respect to the second partition plate 8 in the lead straight direction. ,. [0018] Next, specific examples of each fastening portion will be shown.

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. The fourth fastening portion 23 of the cooling fan unit 9 is provided with round holes at positions corresponding to the plurality of screw holes provided in the third fastening portion 21 of the heat dissipation unit 10. Further, 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. .

[0020] Then, by fixing the round hole provided in the second fastening portion 24 and the screw hole provided in the first fastening portion 22 with a screw (not shown), the heat dissipation unit 10 is Fastened to the second partition 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 is fixed to the heat radiating unit 10. To be concluded. In the present embodiment, in addition to the force using screws (screw nails) as an example of the fastening member, easily detachable members such as bolts and nuts can be used as the fastening members.

[0021] The above-described screw is fastened from the vertical direction to the second fastening portion 24 having a round hole. Therefore, in FIG. 1, the fastening is performed by tightening from the near side to the far side of the page.

In the welding apparatus configured as described above, how to remove the cooling fan unit 9 and the heat radiating unit 10 will be described.

[0023] 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 cooling fan unit 9 is positioned substantially in the direction perpendicular to the screw (in FIG. 1, the front side of the page). Remove side plate 31. Next, remove all the screws that fasten the cooling fan unit 9 and the heat dissipation unit 10. Then, using the space 13, the cooling fan unit 9 can be removed by sliding the cooling fan unit 9 upward.

[0024] As described above, according to the present embodiment, it is possible to easily cool by simply removing one side plate 31 constituting the housing and removing the screws fastening the cooling fan unit 9 and the heat radiating unit 10. The fan unit 9 can be removed from the welding apparatus. Usually, the force that can fix the cooling fan unit 9 and the heat radiating unit 10 by fastening on one side is applicable if it is fastened with screws other than the part facing the front side plate. Side plate Remove and remove the screw at that point.

[0025] When the heat radiating unit 10 is further removed after the cooling fan unit 9 is removed, the heat can be easily released simply by removing the screws that fasten the heat radiating unit 10 and the second partition plate 8. The unit 10 can be removed from the welding apparatus.

[0026] 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 fan unit 9 and the second partition plate 8 simply by removing the screws. It becomes possible to remove the heat radiating unit 10 out of the welding apparatus.

Next, the case where the heat radiating unit 10 and the cooling fan unit 9 are installed in the welding apparatus will be described.

[0028] First, the side plate 31 located in a direction substantially perpendicular 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 with a screw (not shown), the heat radiation unit 10 is Fasten to the partition plate 8. After that, the cooling fan unit 9 is dissipated 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). Fasten to unit 10.

[0029] Note that, in FIG. 3, the direction in which the screw is fastened when the heat radiating unit 10 or the cooling fan unit 9 is fastened is indicated by an arrow.

[0030] As described above, according to the present embodiment, it is possible to easily perform the heat dissipation unit simply by removing one side plate 31 constituting the housing and fastening the heat dissipation unit 10 or the cooling fan unit 9 with screws. 10 and the cooling fan unit 9 can be attached to the welding apparatus. Normally, it is possible to fix the cooling fan unit 9 and the heat dissipation unit 10 by fastening on one side. If fastening with screws other than the part facing the front side plate, remove the corresponding side plate, It can be fastened with screws.

[0031] Further, in welding apparatus 100 of the present embodiment, cooling fan unit 9 dissipates heat by blowing air into heat dissipating unit 10 through first opening 32 provided above heat dissipating unit 10. Dissipates heat from rectifier circuit 1 and inverter circuit 2 attached to unit 10. 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 via the through hole 34 provided in the second partition plate 8. . Thereby, cooling of the member in a welding apparatus can be performed efficiently.

That is, the heat radiation unit 10 is formed in a tunnel shape, and the through hole 34 is provided in the second partition plate 8, thereby forming an air passage from the cooling fan unit 9 and cooling the transformer 3 and the reactor 4. I can do it. This air passage includes 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.

[0033] When the respective fastening portions provided in the second partition plate 8, the cooling fan unit 9, and the heat dissipation unit 10 are provided to face the two side plates 31 of the housing facing each other, 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 has been removed. Each unit can be removed from the welding equipment by loosening and removing the screws.

Industrial applicability

[0034] According to the present invention, a cooling fan or the like can be easily removed, and repair and maintenance are improved. Therefore, in the field of electrical equipment having a cooling fan that cools members in equipment. Industrially useful.

Claims

The scope of the claims

[1] 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 dissipating unit accommodated in the housing and adjacent to the cooling fan unit;

The heat radiating unit has a first opening on a first side facing the air blowing direction of the cooling fan, and a second opening on a second side facing the first side. ,

The second side surface has a first fastening portion around the second opening, and the partition plate facing the second side surface of the partition member is the first tightening portion. Having a second fastening portion at a position corresponding to the portion,

Furthermore, it has a fastening member which fastens said 1st fastening part and said 2nd fastening part, The said fastening member is provided in the surface facing the said side plate, and is removable.

[2] 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 at least part of the periphery of the through hole. The welding apparatus according to claim 1, wherein the welding apparatus is formed by bending a part of the partition plate in a vertical direction.

[3] 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, it has the said fastening member which fastens said 3rd fastening part and said 4th fastening part, The said fastening member is provided in the surface facing the said side plate, and is removable. Welding equipment.

4. The welding apparatus according to claim 1, wherein the fastening member is a screw.

[5] Further, a semiconductor element that is disposed on the outer peripheral portion of the heat dissipation unit and controls the welding output; The welding apparatus according to claim 1, further comprising an electrical component arranged in a direction of blowing air from the second opening.

[6] It has an air blowing path for the air blown from the cooling fan unit,

The air passage is

The radiating unit of the tunnel shape;

The welding apparatus according to claim 1, comprising: a through hole provided in the partition plate facing the second side surface.

7. The welding according to claim 3, wherein the first fastening portion, the second fastening portion, the third fastening portion, and the fourth fastening portion are formed in a direction parallel to the side plate. apparatus.

8. The radiating unit can be removed from the partition member facing the second side surface by removing the fastening members of the first fastening part and the second fastening part. Welding equipment.

9. The welding apparatus according to claim 3, wherein the cooling fan unit can be removed from the heat radiating unit by removing fastening members of the third fastening portion and the fourth fastening portion.