WO2007043195A1

WO2007043195A1 - Welding device

Info

Publication number: WO2007043195A1
Application number: PCT/JP2006/300469
Authority: WO
Inventors: Naoki Kobayashi; Yoshiyuki Tabata; Shinsuke Shimabayashi; Motoyasu Nagano
Original assignee: Matsushita Electric Industrial Co., Ltd.
Priority date: 2005-10-11
Filing date: 2006-01-17
Publication date: 2007-04-19
Also published as: CN100506456C; JPWO2007043195A1; WO2007043195A9; JP3933192B2; CN101043967A

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 device for performing welding.

Background technology

[0002] A conventional welding device will be explained using an example. Japanese Patent Publication No. 8-214549 discloses a welding device in which a cooling fan for cooling the main circuit, etc., including semiconductor elements, etc. inside the device is attached to a side plate constituting a housing. Furthermore, Japanese Utility Model Publication No. 1987-53074 discloses a welding device in which a cooling fan is attached to a partition plate provided inside a housing that separates the inside of the housing into a plurality of areas.

[0003] Figure 5 shows an example in which a cooling fan is attached to a side plate that constitutes a housing, and Figure 6 shows an example in which a cooling fan is attached to a partition plate provided inside the housing.

[0004] The welding device shown in FIG. 5 includes a rectifier circuit 1, an inverter circuit 2, a transformer 3, a cooling fan 5, a printed circuit 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 device shown in Fig. 5, the cooling fan 5 is integrated with the cooling fins due to the nature of the cooling structure. It's getting summer. Therefore, in order to remove the cooling fan 5, it is necessary to remove not only the side plate perpendicular 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. Therefore, there was a problem in that it was difficult to replace the cooling fan 5 etc. in the event of a failure.

[0007] Furthermore, in the conventional welding apparatus shown in FIG. 6, a cooling fan 5 is attached to a partition plate 18 provided inside the housing. In this case, in order to remove the cooling fan 5, it is necessary to remove not only the side plate but also at least the partition plate 18. In this case as well, there was a problem in that it was difficult to replace the cooling fan 5 etc. due to failure.

Disclosure of invention [0008] The welding device of the present invention includes a casing having a removable side plate, a partition member that divides the inside of the casing into a plurality of regions, a cooling fan unit housed within the casing, and a cooling fan unit housed within the casing. , having a heat dissipation unit adjacent to the cooling fan unit. The heat dissipation unit has a tunnel shape that opens in the direction of the cooling fan. The heat dissipation unit is attached to the partition plate by a fastening member provided on the side surface. This welding device is configured so that the heat dissipation unit can be removed from the welding machine by removing the side plate and the fastening member.

[0009] As described above, according to the present invention, the cooling fan and the like can be easily removed, and repair and maintenance efficiency can be improved.

Brief description of the drawing

[0010] FIG. 1 is a diagram showing a schematic configuration of a welding device according to an embodiment of the present invention.

[Figure 2] Figure 2 is a diagram showing a schematic configuration of a part of a welding device according to an embodiment of the present invention.

[Figure 3] Figure 3 is a diagram showing a schematic configuration of a part of a welding device according to an embodiment of the present invention.

[FIG. 4A] FIG. 4A is a perspective view of the external appearance of a heat dissipation unit according to an embodiment of the present invention.

[FIG. 4B] FIG. 4B is a perspective view of the external appearance of a partition plate according to an embodiment of the present invention.

[Figure 5] Figure 5 is a diagram showing a schematic configuration of a conventional welding device.

[Figure 6] Figure 6 is a diagram showing a schematic configuration of a conventional welding device.

Explanation of symbols

1 Rectifier circuit

2 Inverter circuit

3 transformer

4 reactor

5 cooling fan

6 Printed circuit board

7 First partition plate

8 Second partition plate

9 Cooling fan unit 10 Heat dissipation unit

12 Heat dissipation fin

13 Space

17 First partition plate

18 Second partition plate

21 Third fastening part

22 First fastening part

23 Fourth fastening part

24 Second fastening part

30 Housing

31 Side plate

32 First opening

33 Second opening

34 Through hole

100 Welding equipment

BEST MODE FOR CARRYING OUT THE INVENTION

[0012] (Embodiment)

Embodiments of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 is a schematic configuration diagram of a welding device according to this embodiment. FIG. 2 is a schematic configuration diagram showing a part of the welding device of this embodiment. FIG. 3 is a schematic perspective view showing a part of the welding device of this embodiment.

[0013] The welding device 100 has a housing 30, and the housing 30 has four removable side plates 31 around the periphery. Note that FIG. 1 shows a state in which of the four side plates 31, the side plate 31 on the near side of the page has been removed. The interior of the housing 30 is divided into three areas by a first partition plate 7 and a second partition plate 8. A printed circuit board 6 is arranged in an area above the first partition plate 7. Electrical components such as a transformer 3 and a reactor 4 are arranged in the area below the second partition plate 8. Further, a heat dissipation 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, this heat dissipation unit 10 is composed of heat dissipation 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 shape has a second opening 33 in the second opening 33 . In other words, it refers to a shape in which, for example, an air passage is formed in the vertical direction through which air from the cooling fan unit 9 can pass. Furthermore, semiconductor elements such as a rectifier circuit 1 and an inverter circuit 2 for controlling welding output are attached to the heat dissipation unit 10. Furthermore, 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.

[0015] The cooling fan unit 9 is composed of two cooling fans 5, a box-shaped part for fixing these cooling fans 5, and the like. This cooling fan unit 9 dissipates heat from the rectifier circuit 1 and inverter circuit 2 by circulating air within the heat dissipation unit 10 through upper and lower openings 32 and 33, and also dissipates heat from the transformer 3 and reactor 4. It cools them down by blowing wind on them. Further, 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 the area surrounded by the solid line in Figure 1.

[0016] As shown in FIG. 2, the heat dissipation unit 10 has a third fastening part 21 on the upper first side surface of FIG. 2 for fastening the heat dissipation unit 10 to the cooling fan unit 9. have. The heat dissipation unit 10 further includes a first fastening portion 22 for fastening the heat dissipation unit 10 to the second partition plate 8 on the lower second side surface in 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. Further, the second partition plate 8 includes a second fastening portion 24 for fastening to the heat dissipation unit 10.

[0017] As shown in FIG. 4B, the second partition plate 8 has a transducer for the wind generated by the cooling fan unit 9.

A through hole 34 is provided for contacting the third or the like. In order to form this through hole 34, a portion of the second partition plate 8 corresponding to the through hole 34 is cut off. At that time, a part of the portion corresponding to the through hole 34 may be left, and the second fastening portion 24 may be formed by bending this remaining portion in the vertical direction with respect to the second partition plate 8. ,. [0018] Next, specific examples of each fastening portion will be shown.

[0019] The third fastening part 21 and the first fastening part 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 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 round holes at positions 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 part 24 and the screw hole provided in the first fastening part 22 using screws (not shown), the heat dissipation unit 10 is connected to the second fastening part 24. It is fastened to the second partition plate 8. Furthermore, by fixing the round hole provided in the fourth fastening part 23 and the screw hole provided in the third fastening part 21 using screws (not shown), the cooling fan unit 9 is transformed into a heat dissipation unit 10. is concluded. In this embodiment, screws are used as an example of the fastening member.In addition, easily removable members such as bolts and nuts can be used as the fastening member.

[0021] Note that the above-mentioned screw is tightened from the vertical direction to the second fastening part 24 having a round hole. Therefore, in Figure 1, it is tightened by tightening from the front side to the back side of the page.

[0022] How to remove the cooling fan unit 9 and the heat dissipation unit 10 from the welding apparatus configured as described above will be explained.

[0023] For example, if it becomes necessary to remove the cooling fan unit 9 from the welding equipment due to a failure of the cooling fan 5, etc., first remove the screw located approximately perpendicular to the screw (on the near side of the page in Figure 1). Remove side plate 31. Next, remove all the screws that connect cooling fan unit 9 and heat radiation unit 10. The cooling fan unit 9 can then be removed by sliding it upward using the space 13.

[0024] As described above, according to the present embodiment, cooling can be easily achieved by simply removing one side plate 31 constituting the housing and removing the screws that fasten the cooling fan unit 9 and the heat dissipation unit 10. It becomes possible to remove the fan unit 9 from the welding device. Normally, the force that can secure the cooling fan unit 9 and the heat dissipation unit 10 by fastening them on one side. side plate Just remove it and remove the screw at that location.

[0025] If you wish to further remove the heat dissipation unit 10 after removing the cooling fan unit 9, you can easily dissipate the heat by simply removing the screws that connect the heat dissipation unit 10 and the second partition plate 8. It becomes possible to remove the unit 10 from the welding equipment.

[0026] Furthermore, when the cooling fan unit 9 and the heat radiation unit 10 are connected, simply by removing the screws that connect the heat radiation unit 10 and the second partition plate 8, the cooling fan unit 9 and the heat radiation unit 10 can be easily connected. It becomes possible to remove the heat dissipation unit 10 from the welding apparatus.

[0027] Next, a case will be described in which the heat dissipation unit 10 and the cooling fan unit 9 are installed in the welding device.

[0028] First, remove the side plate 31 located in a direction substantially perpendicular to the screw tightening direction (in FIG. 1, on the near side of the page). Next, by fixing the round hole provided in the second fastening part 24 and the screw hole provided in the first fastening part 22 using screws (not shown), the heat dissipation unit 10 is fixed to the second fastening part 24. Fasten to the partition plate 8. Thereafter, the round hole provided in the fourth fastening portion 23 and the screw hole provided in the third fastening portion 21 are fixed using screws (not shown), thereby allowing the cooling fan unit 9 to radiate heat. Conclude in Unit 10.

[0029] In addition, in FIG. 3, arrows indicate the direction in which the screws are tightened when fastening the heat dissipation unit 10 and the cooling fan unit 9.

[0030] As described above, according to the present embodiment, the heat dissipation unit can be easily installed by simply removing one side plate 31 constituting the housing and fastening the heat dissipation unit 10 and cooling fan unit 9 with screws. 10 and cooling fan unit 9 can be attached to the welding device. Normally, the power is sufficient to secure the cooling fan unit 9 and the heat dissipation unit 10 by fastening them on one side. Just fasten it with screws.

[0031] Furthermore, in the welding apparatus 100 of the present embodiment, the cooling fan unit 9 radiates heat by blowing air into the heat radiating unit 10 through the first opening 32 provided above the heat radiating unit 10. Dissipates heat from rectifier circuit 1 and inverter circuit 2 installed in unit 10. At the same time, the wind blown out from the opening 33 provided at the bottom of the heat dissipation unit 10 passes through the through hole 34 provided in the second partition plate 8 and directly hits the transformer 3 and reactor 4. . Thereby, the members within the welding apparatus can be efficiently cooled.

[0032] That is, by making the heat dissipation unit 10 into a tunnel shape and providing the through holes 34 in the second partition plate 8, an air passage from the cooling fan unit 9 is formed to cool the transformer 3 and the reactor 4. I can do it. This air passage includes a tunnel-shaped heat dissipation unit 10 with openings 32 and 33 provided at both ends, and a through hole 34 provided in the second partition plate 8.

[0033] In addition, when the respective fastening parts provided on the second partition plate 8, the cooling fan unit 9, and the heat dissipation unit 10 are provided facing the two side plates 31 of the casing that face each other, Remove each side plate 31 and attach each unit to the welding equipment by tightening screws vertically to the surface from which each side plate 31 was removed, and also in a vertical direction to the surface from which each side plate 31 was removed. Each unit can be removed from the welding equipment by loosening and removing the screws.

Industrial applicability

[0034]According to the present invention, the cooling fan, etc. can be easily removed, improving repair and maintenance efficiency, so that it can be used in the field of electrical equipment that has a cooling fan that cools components inside the equipment. Industrially useful.

Claims

The scope of the claims

[1] A casing with a removable side plate;

one or more partition members that divide the interior of the casing into a plurality of regions;

a cooling fan unit housed in the housing;

a tunnel-shaped heat dissipation unit housed within the housing and adjacent to the cooling fan unit;

The heat dissipation unit has a first opening on a first side facing the air 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 section around the second opening, and the partition plate facing the second side surface of the partition member has a first fastening section around the second opening. a second fastening part at a position corresponding to the part;

The welding apparatus further includes a fastening member that fastens the first fastening part and the second fastening part, and the fastening member is provided on a surface facing the 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 extends at least part of the periphery of the through hole. 2. The welding device according to claim 1, wherein the welding device 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 part at a position corresponding to the third fastening part,

2. The fastening member according to claim 1, further comprising the fastening member that fastens the third fastening part and the fourth fastening part, and the fastening member is provided on a surface facing the side plate and is removable. Welding equipment.

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

[5] Further, a semiconductor element that controls welding output and is arranged on the outer periphery of the heat dissipation unit; 2. The welding device according to claim 1, further comprising an electric component disposed in a direction in which wind is blown out from the second opening.

[6] It has an air passage for air blown out from the cooling fan unit,

The air passage is

the tunnel-shaped heat dissipation unit;

The welding device according to claim 1, further 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 part, the second fastening part, the third fastening part, and the fourth fastening part are formed in a direction parallel to the side plate. Device.

[8] The heat dissipation 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, according to claim 1. Welding equipment.

[9] The welding device according to claim 3, wherein the cooling fan unit can be removed from the heat dissipation unit by removing the fastening members of the third fastening part and the fourth fastening part.