WO2016027317A1 - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
- Publication number
- WO2016027317A1 WO2016027317A1 PCT/JP2014/071675 JP2014071675W WO2016027317A1 WO 2016027317 A1 WO2016027317 A1 WO 2016027317A1 JP 2014071675 W JP2014071675 W JP 2014071675W WO 2016027317 A1 WO2016027317 A1 WO 2016027317A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- case
- guide
- power conversion
- conversion device
- Prior art date
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Classifications
-
- 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
-
- 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
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
- H05K7/14322—Housings specially adapted for power drive units or power converters wherein the control and power circuits of a power converter are arranged within the same casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
Definitions
- the present invention relates to, for example, a power conversion device used in control of an elevator, an air conditioner, and the like.
- Patent Document 1 As a power conversion device used in control of an elevator, an air conditioner, etc., for example, one proposed in Patent Document 1 is known.
- a plurality of support pedestals are provided so as to be dispersed in the peripheral area of the substrate attachment surface in the first case constituting the heat sink. Further, a plurality of pressing pieces are formed in such a manner as to protrude inward on the inner peripheral surface of the cylindrical second case which is stacked on the first case to constitute the apparatus main body. Then, by arranging the second case in a stacked manner in the first case, the substrate on which various circuits are mounted in the storage space formed in the inside of the apparatus main body is sandwiched between the support pedestal and the pressing piece. In the way it is stored.
- each substrate is supported by the support pedestal erected in the first case and the pressing piece formed in the second case. Then there was the following problem.
- a substrate (hereinafter also referred to as a second substrate) on which at least one substrate (hereinafter also referred to as a first substrate) is disposed between the substrate and the substrate mounting surface of the first case
- the support pedestal for supporting the second substrate passes through the area where the first substrate is disposed. Therefore, it is necessary to form in the first substrate a notch for allowing the support pedestal for supporting the second substrate to pass, and as a result, the mounting area of components and circuit patterns on the first substrate is reduced. There was a risk of This problem becomes more remarkable as the number of first substrates increases, the closer the substrate is to the first case, the larger the cutout area.
- the parts and circuit pattern mounted on the first substrate avoid the spacer for fixing the second substrate as described above. As a result, the mounting area of components and circuit patterns on the first substrate may be reduced.
- An object of this invention is to provide the power converter device which can suppress reduction of the mounting area of a board
- the power converter according to the present invention comprises a case forming a heat sink, an apparatus main body together with the case, and a plurality of substrates separated from each other in a storage space formed therein.
- the present invention relates to a power converter provided with a cover for stacking and storing.
- a guide is provided that is disposed directly or indirectly in the case in a manner to face the storage space, and has a holding portion on which the edge of the substrate is placed.
- the guide is characterized in that a part of an edge of a target substrate on which at least one substrate is disposed between the case and the holder is placed on the holding portion to hold at least a part of the target substrate. I assume.
- the case-side substrate closest to the case among the substrates is fastened and fixed so that the mounted power semiconductor module is thermally connected to the case. It is.
- the guide is characterized by having a restricting portion that restricts displacement of the case side substrate so as to be separated from the case.
- the guide has a positioning hole which allows a protrusion formed at an edge portion of the target substrate held by the holding portion to enter.
- the guide displaces the target substrate held by the holding portion so as to be separated from the case by causing a restriction projection formed on the cover to enter. It is characterized by having a control groove part which permits that the control projection restricts.
- the guide holds a part of the pair of edge portions of the target substrate facing each other on the holding portion to hold the target substrate. It features.
- the present invention is provided with a guide which is disposed directly or indirectly on the case in a manner to face the storage space, and which has a holding portion on which the edge portion of the substrate is placed.
- the guide places a part of the edge of the target substrate on which at least one substrate is disposed between the case and the case, and holds at least a part of the target substrate on the holder.
- a support pedestal, a boss or the like for holding the target substrate is avoided at a position corresponding to at least a portion of the target substrate held by the holding portion of the guide in the substrate arranged closer to the case than the target substrate.
- There is no need to make a notch Therefore, according to the present invention, it is possible to suppress the reduction of the mounting area of the substrate.
- FIG. 1 is a front view showing an internal structure by omitting some components of a power conversion device according to an embodiment of the present invention.
- FIG. 2 is a longitudinal cross-sectional view of the main part of the power conversion device according to the embodiment of the present invention.
- FIG. 3 is a perspective view for showing the attachment state of the main part of the power conversion device according to the embodiment of the present invention.
- FIG. 4 is a perspective view of the guide.
- FIG. 5 is a perspective view of the guide.
- FIG. 6 is a longitudinal cross-sectional view of the main part of the power conversion device according to the embodiment of the present invention, and is a cross-sectional view of a portion different from FIG. FIG.
- FIG. 7 is a longitudinal cross-sectional view of the main part of the power conversion device according to the embodiment of the present invention, and is a cross-sectional view of a part different from FIGS. 2 and 6.
- FIG. 8 is a longitudinal cross-sectional view of the main part of the power conversion device according to the embodiment of the present invention, and is a cross-sectional view of a portion different from FIGS. 2, 6 and 7.
- FIG. 1 and 2 respectively show a power conversion device according to an embodiment of the present invention
- FIG. 1 is a front view showing an internal structure with some of the components omitted.
- the power conversion device illustrated here is used to control, for example, a motor that drives an elevator, an air conditioner, and the like, and includes an apparatus main body 1 which is a housing.
- the apparatus main body 1 is set to be forward, backward, left, or right in the state where the apparatus main body 1 is placed sideways (see FIG. 3). Is installed on the board etc. with the upper side.
- the device body 1 has a case 10 and a cover 20.
- the case 10 is formed by extruding a material having good thermal conductivity such as, for example, aluminum or aluminum alloy, and constitutes a heat sink.
- the case 10 has a fin unit 11 and a fan 12.
- the fin unit 11 includes a base 11a and a plurality of fins 11b, and is formed of an aluminum extrusion molding or a crimped fin that crimps the plurality of fins 11b on the base 11a.
- the base 11a has a substantially flat form.
- a plurality of fastening holes 111 are formed in the central region of the base 11a. Further, thermal grease excellent in heat conductivity is applied to the central region of the base 11a.
- Each of the plurality of fins 11 b is in the form of a thin plate.
- the fins 11b are arranged in the standing posture so as to be aligned in the left-right direction in a manner in which the fins 11b individually extend in the front-rear direction on the lower surface of the base 11a.
- the fan 12 is disposed forward of the fin unit 11.
- the fan 12 is driven to introduce outside air into the inside of the case 10 through the opening 13 formed on the front side of the case 10, and after passing between the fins 11 b of the fin unit 11, the fan 12 is It is for discharging
- the cover 20 is formed of, for example, a resin material such as plastic, and is attached to the case 10 to define the storage space 2 in which the plurality of substrates 40 are stored.
- the cover 20 includes a bottom cover 20a and a top cover 20b.
- the bottom cover 20 a is attached to the case 10 with the fixing screws 50 so that the bottom 21 covers the top surface of the case 10. More specifically, the bottom cover 20a is attached to the case 10 with the fixing screw 50 so that the bottom portion 21 covers the upper surface of the case 10 with a watertight material such as an O-ring or packing being appropriately interposed, for example. It is done. The bottom cover 20 a restricts the entry of water from the case 10 into the storage space 2.
- a mounting opening 22 and a wall 23 are provided at the bottom 21 of the bottom cover 20a.
- the mounting opening 22 has a substantially rectangular shape, and is formed at a position corresponding to the base 11 a of the fin unit 11.
- the mounting opening 22 exposes the central region of the base 11a.
- the wall 23 extends upward to surround the bottom 21 at the edge of the bottom 21. These wall portions 23 are formed such that their upper end portions are located on the same plane, although the extension length in the vertical direction is different depending on the height level of the bottom portion 21.
- a connection protrusion 24 and a mounting hole 25 are formed in the pair of left wall portion 23 a and right wall portion 23 b facing each other in such a wall portion 23.
- connection protrusions 24 are provided at the front and rear two places on the left wall 23a and the right wall 23b, and are formed to project outward in the vicinity of the upper end edges of the left wall 23a and the right wall 23b.
- the connection protrusions 24 are for connecting the top cover 20b to the bottom cover 20a.
- the mounting hole 25 is a rectangular shape formed on the lower side of the connecting projection 24.
- the attachment holes 25 are a pair of front and rear, and are provided on the front side and the rear side of the left wall portion 23a and the right wall portion 23b. That is, four attachment holes 25 are formed in the left wall 23a and the right wall 23b, respectively.
- the mounting holes 25 are for mounting the guide 30.
- the guides 30 are plate-like members formed of, for example, a resin material such as plastic, and are arranged two by two in the left wall portion 23 a and the right wall portion 23 b in a manner to face the storage space 2.
- FIG.4 and FIG.5 is a perspective view which shows the guide 30 attached to the right wall part 23b, respectively.
- all the four guides 30 have the same shape, and the guides 30 attached to the left wall 23a are attached with the guides 30 attached to the right wall 23b opposite in the front-rear direction and the left-right direction ing.
- the guide 30 includes the mounting piece 31, the restricting portion 32, the first holding portion 33, the restricting groove portion 34, the restricting rib 35, the positioning hole 36, the second holding portion 37, and the positioning It comprises the projection 38.
- a plurality of (two in the illustrated example) mounting pieces 31 are provided.
- the attachment pieces 31 are tongue-like portions extending downward from the upper edge of the rectangular opening so as to substantially close the rectangular opening formed at the lower end of the guide 30.
- a mounting protrusion 31 a is formed on the lower end portion of the mounting piece 31 so as to protrude rightward.
- the restricting portion 32 is formed by a portion extending in the front-rear direction in the upper region of the mounting piece 31 and protruding leftward.
- the first holding portion 33 is formed by a portion extending in the front-rear direction in the upper region of the regulating portion 32 and protruding leftward.
- the restriction groove portion 34 is formed in the upper region of the first holding portion 33, and extends from the upper end portion of the guide 30 to the first holding portion 33 such that a portion of the upper surface of the first holding portion 33 becomes the bottom portion 21. It is a groove-like part.
- a plurality of (two in the illustrated example) restriction ribs 35 are provided.
- One of the restriction ribs 35 is formed by a portion projecting leftward so as to extend in the vertical direction at the rear end portion of the upper area of the first holding portion 33.
- the other restriction rib 35 is formed by a portion projecting leftward so as to extend in the vertical direction on the front side of the restriction groove portion 34 in the upper region of the first holding portion 33.
- a gap larger than the thickness of the substrate 40 is formed between the restriction rib 35 and the first holding portion 33.
- the positioning hole 36 has a rectangular shape formed on the rear side of the restricting groove 34 in the upper area of the first holding portion 33.
- the second holding portion 37 is formed at the upper end portion of the guide 30 by a portion extending along the front-rear direction and protruding leftward.
- the second holding portion 37 is divided back and forth by the restricting groove portion 34, and in the vicinity of the restricting groove portion 34, an inclined surface gradually approaching the restricting groove portion 34 is formed as it goes downward.
- a front end portion is formed so as to extend in the front-rear direction a restricting protruding wall 39 which constitutes the inclined surface.
- the positioning projection 38 is formed to project upward on the front side of the restriction groove portion 34 in the second holding portion 37.
- the heights of the restriction protruding wall 39 and the positioning projection 38 projecting upward from the second holding portion 37 are adjusted to be slightly larger than the thickness of the substrate 40.
- the mounting piece 31 enters the front and rear pair of mounting holes 25 from the inside of the wall portion 23 and is sandwiched by the mounting rib 26 and the wall portion 23 provided on the bottom portion 21 of the bottom cover 20a.
- two each are provided in the left wall 23a and the right wall 23b.
- the guide 30 appears to be disposed before the substrate 40 is disposed, but in practice the substrate 30 closest to the case 10 is the guide 30 as described later. After being disposed, the guide 30 is disposed.
- the top cover 20 b is a substantially rectangular box-like body whose lower surface is open.
- the lower ends of the left and right sides of the top cover 20b are formed with connecting holes (not shown), and the connecting projections 24 of the bottom cover 20a are made to enter these connecting holes to make the top cover 20b be a bottom. It connects so that the upper direction of the cover 20a may be closed, and the said storage space 2 is defined inside.
- the top cover 20b is provided with a first restricting protrusion 28 (see FIG. 7) and a second restricting protrusion 29 (see FIG. 8).
- the first restriction projection 28 is provided at a position corresponding to the restriction groove 34 of the guide 30 disposed on the bottom cover 20a.
- the first restricting projection 28 has a front-rear width smaller than that of the restricting groove 34, and can enter the restricting groove 34 from above when the top cover 20b is connected to the bottom cover 20a.
- the upper and lower dimensions of the first restricting projection 28 are adjusted so that a gap having a distance larger than the thickness of the substrate 40 is formed when the first restricting protrusion 34 enters the restricting groove 34. It is done.
- the second restriction projection 29 is provided at a position corresponding to the restriction projection 39 of the guide 30 disposed on the bottom cover 20a.
- the second restricting protrusion 29 is such that the lower surface can be in contact with the upper surface of the restricting protrusion wall 39 when the top cover 20b is connected to the bottom cover 20a.
- a plurality of (three in the illustrated example) substrates 40 are disposed in the storage space 2 defined by attaching the cover 20 to the case 10.
- the substrates 40 are stacked and stored so as to be separated from each other in the storage space 2, and semiconductor elements, circuits, and the like are mounted thereon.
- a power semiconductor module 44 such as an IGBT element is mounted on the lower surface of a first substrate (case side substrate) 41 located at the lowermost position among these substrates 40 and closest to the case 10.
- a substrate stacked on the upper side of the first substrate 41 is referred to as a second substrate (target substrate) 42
- a substrate 40 stacked on the upper side of the second substrate 42 is a third substrate (target substrate). It is referred to as 43 and described.
- the first substrate 41, the second substrate 42, and the third substrate 43 are accommodated in the accommodation space 2 as follows.
- the first substrate 41 is mounted on the central region of the base 11 a of the fin unit 11 so that the power semiconductor module 44 mounted on the lower surface passes through the mounting opening 22 and fastened to the base 11 a by a fastening member not shown. It is arranged by being done. Thus, the power semiconductor module 44 is thermally connected to the base 11a (fin unit 11). Further, as shown in FIG. 6, a part of the edge portion of the first substrate 41 is placed on and supported by a support rib 27 provided upright on the bottom portion 21 of the bottom cover 20a.
- the guide 30 is disposed on the wall 23 (the left wall 23a and the right wall 23b) of the bottom cover 20a.
- the restricting portion 32 of the guide 30 is positioned above the edge of the first substrate 41 as shown in FIG.
- the guide 30 can restrict displacement of the first substrate 41 away from the case 10 through the restricting portion 32.
- the second substrate 42 is disposed on the upper surface of the first holding portion 33 of the guide 30 to which a part of the edge portion corresponds.
- a protrusion (not shown) formed at the edge of the second substrate 42 enters the positioning hole 36 of the guide 30 so that the second substrate 42 is positioned at a desired position by the guide 30. It is decided.
- the gap between the first holding portion 33 and the restriction rib 35 in the guide 30 is larger than the thickness of the substrate 40, the edge of the second substrate 42 enters between the first holding portion 33 and the restriction rib 35.
- the amount of vertical displacement of the second substrate 42 before the top cover 20b is connected to the bottom cover 20a is regulated to some extent by the first holding portion 33 and the regulation rib 35.
- the guide 30 can hold a part of the second substrate 42 while restricting the displacement of the second substrate 42 in the vertical direction.
- the third substrate 43 is disposed on the top surface of the second holding portion 37 of the guide 30 to which a part of the edge portion corresponds.
- the third substrate 43 is positioned by the guide 30 as the positioning projection 38 relatively enters the recess (not shown) formed at the edge of the third substrate 43.
- the guide 30 can hold a part of the third substrate 43 while restricting the displacement of the third substrate 43 in the vertical direction.
- the power converter is disposed on the wall 23 (the left wall 23a and the right wall 23b) of the bottom cover 20a in a manner to face the storage space 2
- the guide 30 places a part of the edge portion of the second substrate 42 on the first holding portion 33 to hold a portion of the second substrate 42, and the second holding portion 37 holds the third substrate 43. A part of the edge portion is placed to hold a part of the third substrate 43.
- a support pedestal, a boss or the like for holding the second substrate 42 is avoided at a position corresponding to the portion of the second substrate 42 held by at least the first holding portion 33 of the guide 30 in the first substrate 41 There is no need to make a notch to
- a support pedestal for holding the third substrate 43 or a portion corresponding to the portion of the third substrate 43 held by at least the second holding portion 37 of the guide 30 in the first substrate 41 and the second substrate 42 There is no need to provide a notch to avoid the boss and the like. Therefore, according to the power converter which is an embodiment of the present invention, reduction of the mounting area of substrate 40 can be controlled.
- the first to third substrates 41, 42 and 43 can be held by the guide 30 without using a screw, a plurality of substrates are stacked in a mutually separated state in the storage space 2 inside the apparatus main body 1. Even in the case of housing, it is possible to fix the substrate by a screwless method. In addition, in order to reinforce fixation of a board
- the guide 30 is disposed on the bottom cover 20b constituting the cover 20.
- the guide may be disposed on the case.
- the guide 30 is a part of the edge portions of the second substrate 42 and the third substrate 43 which are disposed on the left wall 23a and the right wall 23b facing each other and are in the facing relationship with each other. Is placed and held in the first holding unit 33 and the second holding unit 37, but in the present invention, the guide is a part of the target substrate (the second substrate 42 and the third substrate 43). As long as it can be held, the arrangement place and the like are not particularly limited.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inverter Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
Description
2 収納空間
10 ケース
11 フィンユニット
12 ファン
11a ベース
11b フィン
20 カバー
20a ボトムカバー
20b トップカバー
21 底部
22 取付開口
23 壁部
24 連結突起
25 取付孔
30 ガイド
31 取付片
32 規制部
33 第1保持部
34 規制溝部
35 規制リブ
36 位置決め用孔
37 第2保持部
38 位置決め用突起
39 係止突壁
40 基板
41 第1基板
42 第2基板
43 第3基板
44 パワー半導体モジュール
Claims (5)
- ヒートシンクを構成するケースと、
前記ケースとともに装置本体を構成し、かつ内部に形成された収納空間に複数の基板を互いに離隔した状態で積層して収納するカバーと
を備えた電力変換装置において、
前記収納空間を臨む態様で前記ケースに直接、あるいは間接的に配設され、かつ基板の縁端部を載置させる保持部を有するガイドを備え、
前記ガイドは、前記ケースとの間に少なくとも1つの基板が配置されている対象基板の縁端部の一部を前記保持部に載置させて該対象基板の少なくとも一部を保持することを特徴とする電力変換装置。 - 前記基板のうち前記ケースに最も近接するケース側基板は、実装されたパワー半導体モジュールが該ケースに熱的に接続されるよう締結されて固定されるものであり、
前記ガイドは、前記ケース側基板が前記ケースから離隔するよう変位することを規制する規制部を有することを特徴とする請求項1に記載の電力変換装置。 - 前記ガイドは、前記保持部が保持する前記対象基板の縁端部に形成された突部の進入を許容する位置決め用孔を有することを特徴とする請求項1に記載の電力変換装置。
- 前記ガイドは、前記カバーに形成された規制突部を進入させることにより、前記保持部が保持する前記対象基板が前記ケースから離隔するよう変位することを前記規制突部が規制することを許容する規制溝部を有することを特徴とする請求項1に記載の電力変換装置。
- 前記ガイドは、前記対象基板の互いに対向する関係にある一対の縁端部の一部を前記保持部に載置させて該対象基板を保持することを特徴とする請求項1に記載の電力変換装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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DE112014006104.2T DE112014006104T5 (de) | 2014-08-19 | 2014-08-19 | Leistungswandlungsgerät |
JP2016543519A JP6380538B2 (ja) | 2014-08-19 | 2014-08-19 | 電力変換装置 |
PCT/JP2014/071675 WO2016027317A1 (ja) | 2014-08-19 | 2014-08-19 | 電力変換装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2014/071675 WO2016027317A1 (ja) | 2014-08-19 | 2014-08-19 | 電力変換装置 |
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WO2016027317A1 true WO2016027317A1 (ja) | 2016-02-25 |
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PCT/JP2014/071675 WO2016027317A1 (ja) | 2014-08-19 | 2014-08-19 | 電力変換装置 |
Country Status (3)
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JP (1) | JP6380538B2 (ja) |
DE (1) | DE112014006104T5 (ja) |
WO (1) | WO2016027317A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01169083U (ja) * | 1988-05-18 | 1989-11-29 | ||
JPH09283883A (ja) * | 1996-04-15 | 1997-10-31 | Matsushita Electric Ind Co Ltd | パワー制御装置 |
JP2004014690A (ja) * | 2002-06-05 | 2004-01-15 | Koyo Seiko Co Ltd | 基板収容箱 |
JP2011166048A (ja) * | 2010-02-15 | 2011-08-25 | Fujitsu Telecom Networks Ltd | 電子機器等の筐体 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4623198Y1 (ja) * | 1968-07-11 | 1971-08-10 | ||
JPS62174389U (ja) * | 1986-04-25 | 1987-11-05 | ||
JP4820241B2 (ja) * | 2006-08-29 | 2011-11-24 | 株式会社ケーヒン | 配線基板収納構造 |
JP2012164843A (ja) * | 2011-02-08 | 2012-08-30 | Fuji Electric Co Ltd | 電子機器のプリント基板支持構造 |
-
2014
- 2014-08-19 DE DE112014006104.2T patent/DE112014006104T5/de active Pending
- 2014-08-19 JP JP2016543519A patent/JP6380538B2/ja active Active
- 2014-08-19 WO PCT/JP2014/071675 patent/WO2016027317A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01169083U (ja) * | 1988-05-18 | 1989-11-29 | ||
JPH09283883A (ja) * | 1996-04-15 | 1997-10-31 | Matsushita Electric Ind Co Ltd | パワー制御装置 |
JP2004014690A (ja) * | 2002-06-05 | 2004-01-15 | Koyo Seiko Co Ltd | 基板収容箱 |
JP2011166048A (ja) * | 2010-02-15 | 2011-08-25 | Fujitsu Telecom Networks Ltd | 電子機器等の筐体 |
Also Published As
Publication number | Publication date |
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JPWO2016027317A1 (ja) | 2017-04-27 |
JP6380538B2 (ja) | 2018-08-29 |
DE112014006104T5 (de) | 2016-10-06 |
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