WO2009098854A1 - 電気機器 - Google Patents
電気機器 Download PDFInfo
- Publication number
- WO2009098854A1 WO2009098854A1 PCT/JP2009/000375 JP2009000375W WO2009098854A1 WO 2009098854 A1 WO2009098854 A1 WO 2009098854A1 JP 2009000375 W JP2009000375 W JP 2009000375W WO 2009098854 A1 WO2009098854 A1 WO 2009098854A1
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- WIPO (PCT)
- Prior art keywords
- opening
- plate
- partition member
- housing
- electric device
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20154—Heat dissipaters coupled to components
- H05K7/20163—Heat dissipaters coupled to components the components being isolated from air flow, e.g. hollow heat sinks, wind tunnels or funnels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
- H05K7/20918—Forced ventilation, e.g. on heat dissipaters coupled to components the components being isolated from air flow, e.g. hollow heat sinks, wind tunnels or funnels
Definitions
- the present invention relates to an electrical apparatus that cools an inside using a cooling fan, such as a welding apparatus used for welding.
- an electric device such as a welding apparatus
- an air intake hole and an exhaust hole are provided in a housing and the inside of the electric device is cooled by a fan (for example, Patent Document 1).
- the welding apparatus provided with the opening part in the side plate either before and after which comprises a housing
- An electrical device as shown in FIG. 5 can be considered as an electrical device that can be cooled more satisfactorily than such a conventional technique.
- the 5 includes a casing 40 having a front plate 31, a left plate 32, a right plate 33, and a rear plate 34.
- the rear plate 34 is provided with a first opening 37 for discharging the heated air in the housing 40 out of the housing 40.
- the left side plate 32 is provided with a second opening 38 for taking in air from outside the housing 40 into the housing 40.
- the right side plate 33 is provided with a third opening 39 for taking in air from outside the housing 40 into the housing 40.
- a heat generating element 15 is disposed in the housing 40.
- a fan 36 that discharges the heated air in the housing 40 to the outside of the housing 40 is provided in the housing 40.
- the present invention provides a highly safe electric device that suppresses direct entry into the electric device even if heat-welded spatter or the like is scattered and enters the opening of the electric device.
- the present invention is any one of a front plate, a left side plate, a right side plate, a rear plate, a top plate and a bottom plate, a front plate, a left side plate, a right side plate, a rear plate, a top plate and a bottom plate.
- the air is provided on at least one face plate of the face plate provided with the face plate not provided with the discharge opening for discharging the air inside the case to the outside of the case and the face plate not provided with the discharge opening.
- a partition member having another intake opening and an outer peripheral portion forming a cavity for circulating air, and the opening on one end side of the cavity faces the discharge opening And the surface on which the discharge opening is formed Has a heat dissipating unit disposed between a heat generating element disposed in the housing, the configuration of the air heated with the housing and a blower unit for discharging outside the housing and.
- FIG. 1 is a schematic diagram showing an external appearance of an electric apparatus according to an embodiment of the present invention.
- FIG. 2 is a schematic cross-sectional view seen from above showing a schematic configuration of the electrical apparatus according to the embodiment.
- FIG. 3 is a schematic cross-sectional perspective view seen from above showing a schematic configuration of the electrical apparatus according to the embodiment.
- FIG. 4 is a partially transparent perspective view showing another configuration example of the electric apparatus according to the embodiment.
- FIG. 5 is a diagram showing a schematic configuration of an electric apparatus which is a conventional welding apparatus.
- FIG. 1 is a schematic diagram showing an overview of a welding apparatus which is an example of an electrical apparatus in the present embodiment. The state which decomposed
- FIG. 2 is a schematic cross-sectional view of the main part of the electric device according to the present embodiment as viewed from above.
- FIG. 3 is a schematic cross-sectional view of a main part when the electric apparatus according to the present embodiment is cut at a half height and viewed from an oblique direction.
- the housing 17 includes a front plate 1, a left plate 2, a right plate 3, a rear plate 4, an upper plate 5, and a lower plate 6.
- the front plate 1 When the casing 17 is placed on the placement surface, if one surface perpendicular to the placement surface is the front plate 1, the two plates connected to the front plate 1 are the left sides of the surface perpendicular to the placement surface.
- a plate 2 and a right plate 3 are used, and a plate at a position facing the front plate 1 in a plane perpendicular to the placement surface is called a rear plate 4.
- one surface that is substantially parallel to the placement surface hereinafter, also including substantially parallel is also included
- the upper plate 5 a plate that is substantially parallel to the placement surface
- a plate that is substantially parallel to the placement surface is in contact with the front plate 1, the left plate 2, the right plate 3, and the rear plate 4 and faces the upper plate 5 and is closer to the placement plate than the upper plate 5 6.
- the rear plate 4 is provided with a first opening (discharge opening) 7 for discharging the air in the housing 17 to the outside of the housing 17.
- the left side plate 2 is provided with a second opening (intake opening) 8 for taking in air from the outside of the housing 17 into the inside of the housing 17.
- the center position in the horizontal direction (front-rear direction) of the second opening 8 is substantially the same as the center position in the horizontal direction of the left side plate 2 (hereinafter, substantially the same includes the same case).
- the right side plate 3 is provided with a third opening (take-in opening) 9 for taking in air from the outside of the case 17 into the case 17.
- the lateral center position of the third opening 9 is substantially the same as the lateral center position of the right side plate 3.
- a first partition member 12 that is substantially parallel to the left side plate 2 and is in contact with the upper surface plate 5, the lower surface plate 6, the front surface plate 1, and the rear surface plate 4 is provided inside the housing 17.
- the first partition member 12 has a fourth opening (other intake opening) 10 for taking air taken in from the second opening 8 into the inside of the housing 17.
- a second partition member 13 that is substantially parallel to the right side plate 3 and is in contact with the upper surface plate 5, the lower surface plate 6, the front surface plate 1, and the rear surface plate 4 is provided.
- the second partition member 13 has a fifth opening (another intake opening) 11 for taking the air taken in from the third opening 9 into the housing 17. Yes.
- the fourth opening 10 is provided closer to the rear plate 4 than the second opening 8 so as not to overlap the second opening 8.
- the fifth opening 11 is provided closer to the rear plate 4 than the third opening 9 so as not to overlap the third opening 9.
- the center position of the fourth opening 10 is closer to the rear plate 4 than the center position of the first partition member 12.
- the center position of the fifth opening 11 is closer to the rear plate 4 than the center position of the second partition member 13.
- the second opening 8 is closer to the front plate 1 than the fourth opening 10
- the third opening 9 is closer to the front plate 1 than the fifth opening 11. That is, the first partition member 12 is provided in the housing 17 so as to cover the second opening 8 and substantially parallel to the left side plate 2. Similarly, the second partition member 13 is provided in the housing 17 substantially parallel to the right side plate 3 so as to cover the third opening 9.
- a heat radiating unit 14 is disposed between the first partition member 12 and the second partition member 13.
- the heat dissipation unit 14 has a tunnel shape including an outer peripheral portion 14B that forms a hollow portion 14A for circulating air therein.
- the hollow portion 14A has a square cylindrical shape, and is formed in two upper and lower stages in the present embodiment.
- the hollow portion 14A may have one stage or three or more stages.
- the opening 14 ⁇ / b> C on one end side of the heat radiating unit 14 is disposed so as to face the first opening 7 of the rear plate 4.
- a heat generating element 15 is attached to the outer peripheral surface of the heat radiating unit 14.
- the exothermic element 15 is an electronic component such as a semiconductor element that operates as a switching element for inverter-controlling a welding output used in a welding apparatus, for example. Therefore, when the welding apparatus operates, the switching element or the like is driven to generate heat. Accordingly, the heat generating element 15 serves as a heat source to heat the inside of the housing 17. Examples of the heat generating element 15 include a power transistor in addition to the switching element.
- the exothermic element 15 may be provided at a position away from the heat radiating unit 14.
- a hollow heat sink 18 (FIG. 3) is provided in the cavity 14 in order to enhance the internal heat dissipation effect.
- a fan 16 serving as a blower that discharges the heated air in the casing 17 to the outside of the casing 17 is provided in the opening 14D opposite to the opening 14C of the heat dissipation unit 14.
- the fan 16 may be provided in the opening 14C of the heat dissipation unit 14, may be provided in both the openings 14C and 4D of the heat dissipation unit 14, or may be provided in the heat dissipation unit 14.
- the fan 16 includes the second opening 8 and the third opening 9, or the fourth opening 10 and the fifth opening 11, or the second opening 8 and the third opening. 9, the fourth opening 10, and the fifth opening 11 may be provided. Further, the fan 16 may be provided at any combination of these attachment positions.
- the fan 16 may be provided for each of the upper and lower cavities 14A. That is, the fan 16 may be provided at a position where the air in the housing 17 can be discharged from the first opening 7 to the outside of the housing 17 through the heat dissipation unit 14.
- the center position of the fourth opening 10 is set to the rear plate 4 side from the center position of the first partition member 12, and the center position of the fifth opening 11 is the center of the second partition member 13. From the position, the rear plate 4 was provided.
- the center position of the fourth opening 10 may be the same as the center position of the first partition member 12, and the center position of the fifth opening 11 may be the same as the center position of the second partition member 13. . That is, even in such a case, if the second opening 8 is formed closer to the front plate 1 than the fourth opening 10 and the third opening 9 is formed closer to the front plate 1 than the fifth opening 11. An air flow similar to that in the present embodiment is generated in the housing 17.
- the taken-in air flows from the rear plate 4 side to the front plate 1 side, and further through the heat dissipation unit 14 to the rear plate 4 side. Therefore, not only the heat radiating unit 14 but also the surface of the heat generating element 15 can be cooled, and the air flows through the entire housing 17, so that the housing 17 can be efficiently cooled.
- the fan 16 is operated to take air into the housing 17 and, at the same time, spatter and the like having heat from the second opening 8 and the third opening 9 are also housed. There is also a possibility of being taken into the body 17.
- the fourth opening 10 is provided at a position that does not overlap with the second opening 8, even if spatter or the like with heat enters from the second opening 8, the first partition 10 It will hit the member 12.
- the fifth opening 11 is provided at a position that does not overlap with the third opening 9, even if spatter or the like with heat enters from the third opening 9, It will hit the partition member 13. Thereby, it can suppress that a sputter
- the cooling efficiency in the housing 17 is increased, and the spatter or the like with heat is prevented from entering the housing 17, thereby ensuring the safety of the electrical device. Can keep.
- the heat radiating unit 14 may attach a different heat generating element 15 as a heat generation source for each cavity 14A to efficiently discharge the heat generated by the heat generating element 15. In this case, as described above, it is desirable to provide the fan 16 for each cavity.
- the second opening 8 is an opening having a height substantially the same as the height of the left side plate 2
- the third opening 9 is an opening having a height substantially the same as the height of the right side plate 3.
- the first partition member 12 is in contact with the upper surface plate 5, the lower surface plate 6, and the front plate 1, and is not in contact with the rear plate 4, so that the first partition member 12 and the rear plate 4 are in contact with each other.
- the gap may be the fourth opening 10.
- the second partition member 13 is in contact with the upper surface plate 5, the lower surface plate 6, and the front plate 1, and is not in contact with the rear plate 4, so that the second partition member 13 and the rear plate 4 This gap may be used as the fifth opening 11.
- the second opening 8 is provided on the front plate 1 side from the fourth opening 10
- the third opening 9 is provided on the front plate 1 side from the fifth opening 11. It was.
- the partition member 12 covers the second opening 8, and the second partition member 13 covers the third opening 9. Therefore, it is possible to increase the cooling efficiency in the housing 17 and to keep the safety of the electrical equipment by suppressing the entry of spatter having heat into the housing 17. In this case, if the exothermic element 15 is arranged in the air flow in the housing 17, the heat generated by the exothermic element 15 can be efficiently discharged.
- FIG. 4 is a partially transparent perspective view showing another example of the electric apparatus according to the present embodiment.
- the electric device shown in FIG. 4 is divided into two upper and lower regions by, for example, the upper surface plate 5.
- the upper region of the top plate 5 is a complete dust-proof region 20.
- a region below the top plate 5 including the top plate 5 is a cooling region 21 having the structure of the housing 17 described above.
- the present invention is useful as a device for cooling with a cooling fan, such as in the field of welding machines, particularly as an electric device used in a work environment where scattered objects exist.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
2 左側板
3 右側板
4 後面板
5 上面板
6 下面板
7 第1の開口部
8 第2の開口部
9 第3の開口部
10 第4の開口部
11 第5の開口部
12 第1の仕切り部材
13 第2の仕切り部材
14 放熱ユニット
14A 空洞部
14B 外周部
14C,14D 開口部
15 発熱性素子
16 ファン
17 筐体
20 防塵領域
21 冷却領域
以下、本発明の実施の形態について、図1から図3を用いて説明する。図1は本実施の形態における電気機器の一例である溶接装置の概観を示す概要図である。構造がわかり易いように後述する左側板2を分解した状態を示している。図2は本実施の形態における電気機器を上面から見た要部概略断面図である。図3は本実施の形態における電気機器を約半分の高さで切断し斜め方向からみた場合の要部概略断面図である。
Claims (10)
- 前面板と左側面板と右側面板と後面板と上面板と下面板とを有する筐体と、
前記前面板と前記左側面板と前記右側面板と前記後面板と前記上面板と前記下面板のうちのいずれかの面板に設けられ前記筐体内の空気を前記筐体外に排出するための排出用開口部と、
前記排出用開口部が設けられていない面板のうちの少なくともひとつの面板に設けられ前記筐体外から前記筐体内に前記空気を取り込むための取り込み用開口部と、
前記取り込み用開口部が設けられた面板との間に空気経路を形成するように前記筐体内に設けられ、前記取り込み用開口部と重ならない位置に前記空気を取り込むための他の取り込み用開口部を有する仕切り部材と、
前記空気を流通させるための空洞部を形成する外周部を有し、前記空洞部の一端側の開口部が前記排出用開口部に面するように、前記仕切り部材と前記排出用開口部が形成された面板との間に配置された放熱ユニットと、
前記筐体内に配置された発熱性素子と、
前記筐体内の熱せられた前記空気を前記筐体外に排出する送風部とを備えた電気機器。 - 前記排出用開口部が、前記後面板に設けられた第1の開口部からなり、
前記取り込み用開口部が、前記左側板に設けられた第2の開口部と前記右側板に設けられた第3の開口部からなり、
前記仕切り部材が、前記左側板との間に前記空気経路を形成するように前記筐体内に設けられた第1の仕切り部材と、前記右側板との間に前記空気経路を形成するように前記筐体内に設けられた第2の仕切り部材とからなり、
他の前記取り込み用開口部が、前記第1の仕切り部材の前記第2の開口部と重ならない位置に設けられた第4の開口部と、前記第2の仕切り部材の前記第3の開口部と重ならない位置に設けられた第5の開口部とからなり、
前記放熱ユニットが、前記空洞部の一端側の開口部が前記後面板の前記第1の開口部に面するように、前記第1の仕切り部材と前記第2の仕切り部材との間に配置された請求項1記載の電気機器。 - 前記第4の開口部は前記第2の開口部より前記後面板側に設けた請求項2記載の電気機器。
- 前記第5の開口部は前記第3の開口部より前記後面板側に設けた請求項2記載の電気機器。
- 前記第1の仕切り部材は、前記左側板に平行であり前記上面板と前記下面板と前記前面板と前記後面板とに接し、前記第4の開口部の中心位置は前記第1の仕切り部材の中心位置と同じ、あるいは、前記第1の仕切り部材の中心位置より前記後面板側であり、
前記第2の仕切り部材は、前記右側板に平行であり前記上面板と前記下面板と前記前面板と前記後面板に接し、前記第5の開口部の中心位置は前記第2の仕切り部材の中心位置と同じ、あるいは、前記第2の仕切り部材の中心位置より前記後面板側であり、
前記第2の開口部は前記第4の開口部より前記前面板側に設けられ、前記第3の開口部は前記第5の開口部より前記前面板側に設けられた請求項1記載の電気機器。 - 前記第2の開口部の高さは前記左側板の高さと同一であり、前記第3の開口部の高さは前記右側板の高さと同一の高さである請求項1記載の電気機器。
- 前記第1の仕切り部材は、前記左側板に平行であり前記上面板と前記下面板と前記前面板とに接し、前記第4の開口部は、前記第1の仕切り部材と前記後面板との間に形成され、
前記第2の仕切り部材は、前記右側板に平行であり前記上面板と前記下面板と前記前面板とに接し、前記第5の開口部は、前記第2の仕切り部材と前記後面板との間に形成された請求項1記載の電気機器。 - 前記放熱ユニットの外周面に発熱性素子が設けられた請求項1記載の電気機器。
- 前記放熱ユニットは複数の前記空洞部を有する請求項1記載の電気機器。
- 前記放熱ユニットの前記空洞部の両端の少なくとも一方の開口部に送風部が設けられた請求項1記載の電気機器。
Priority Applications (4)
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US12/667,293 US8289708B2 (en) | 2008-02-06 | 2009-02-02 | Electric equipment |
JP2009520722A JP4798287B2 (ja) | 2008-02-06 | 2009-02-02 | 電気機器 |
EP09707739A EP2164315B1 (en) | 2008-02-06 | 2009-02-02 | Electric equipment |
CN200980100737.8A CN102742374B (zh) | 2008-02-06 | 2009-02-02 | 电气设备 |
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JP2008026179 | 2008-02-06 | ||
JP2008-026179 | 2008-02-06 |
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US (1) | US8289708B2 (ja) |
EP (1) | EP2164315B1 (ja) |
JP (1) | JP4798287B2 (ja) |
CN (1) | CN102742374B (ja) |
WO (1) | WO2009098854A1 (ja) |
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CN102189358A (zh) * | 2010-03-10 | 2011-09-21 | 株式会社大亨 | 焊接电源 |
CN102189310A (zh) * | 2010-03-10 | 2011-09-21 | 株式会社大亨 | 电源装置 |
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CN102189311B (zh) * | 2010-03-10 | 2015-02-04 | 株式会社大亨 | 电源装置 |
Also Published As
Publication number | Publication date |
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JP4798287B2 (ja) | 2011-10-19 |
JPWO2009098854A1 (ja) | 2011-05-26 |
EP2164315B1 (en) | 2012-09-12 |
CN102742374A (zh) | 2012-10-17 |
CN102742374B (zh) | 2014-11-26 |
US8289708B2 (en) | 2012-10-16 |
US20100328884A1 (en) | 2010-12-30 |
EP2164315A4 (en) | 2011-06-29 |
EP2164315A1 (en) | 2010-03-17 |
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